WO2025077372A1 - Buried solar luminous and reflective road stud - Google Patents

Abstract

A buried solar luminous and reflective road stud, comprising a protective shell (1), an inner shell (2) at least the top of which is a transparent material structure, retroreflectors (3), a light-emitting device (4), a photovoltaic device (5), an electronic circuit component (6), a packaging adhesive curing molded body (7), and fasteners (8). The protective shell (1) has an accommodating cavity (1q) having an upper opening, and the non-open portion of the top of the protective shell is provided with raised bodies (1t); accommodating slots (3d) are formed in the protective shell (1) or/and the inner shell (2) and are combined with the retroreflectors (3) to form a lateral retroreflection structure; by means of the packaging adhesive curing formed body (7), components are packaged in a double-shell structure that is formed by combining the protective shell (1) and the inner shell (2) by means of the fasteners (8), thereby forming a buried solar luminous and reflective road stud having a waterproof packaging structure and a high-strength structure; and the inner side surfaces of the raised bodies (1t) of the road stud are in tolerance fit with the outer side surface of the top of the inner shell (2) to form a mechanically protected composite structure.

Description

A kind of buried solar luminous reflective road stud Technical Field

The invention relates to the field of traffic safety equipment, and in particular to an underground road stud with luminous and reflective functions for road sight guidance.

Background Art

Solar road studs, also known as solar raised road signs or solar ground lights, are mainly installed on road surfaces. They store solar energy during the day and supply solar power to light-emitting devices at night. They can provide visual guidance or prompts to motor vehicle drivers and pedestrians, and can also serve as auxiliary road lighting equipment.

Existing solar luminous road studs are mainly raised road studs, which have luminous effects and can also have reflective (retro-reflective) functions. However, since their main bodies protrude from the road surface, they are easily damaged by the impact and crushing of passing vehicles, have a high failure rate, and are greatly limited in the sections where they can be used.

Therefore, someone proposed an underground solar luminous road stud. When installed, the main part below the underground reference surface is buried in the road surface, and the top surface above the underground reference surface is exposed and flush with or slightly higher than the road surface. It has a side-lighting function and is not easily damaged by the impact and crushing of passing vehicles. In addition, it can withstand the bumps of snowplows in the northern winter, and is popular in the market. However, the existing structure has a road stud body buried in the ground, and although the pressure and impact resistance are greatly improved, it also loses the reflective performance.

For this reason, some people have tried to achieve the purpose of reflection by sticking reflective film on the outer surface of buried road studs in the early years. However, due to the structural limitations of existing products, the main direction of the retroreflected light is excessively biased towards the vertical direction, and the reflection angle is difficult to match with the motor vehicle lights and the driver's line of sight. There is even almost no retroreflective function in the direction of vehicle travel (horizontal direction of the ground), which does not have the desired effect on the motor vehicle driver. In addition, the reflective film is very easy to fall off due to reasons such as wheel rolling, especially on roads with heavy traffic, fast speed, and many overloaded and overweight vehicles. It will fall off in a few days. Attempts of this type have ended in failure.

Some people have also tried to achieve the purpose of reflection by sticking reflective film inside the transparent shell of the buried road stud body. Although this structure solves the risk of the reflective film falling off, it will affect the luminous effect of the light-emitting device. In addition, since the reflective film must pass through the transparent shell and other media when reflecting, the light energy loss is large, the reflection efficiency is low, and the main direction of the retroreflected light is easily deflected. The reflection sight distance is only a few meters, which has lost its meaning. The reflective effect in the direction of the driver is minimal, and attempts of this type have also ended in failure.

Moreover, when solar luminous road studs are used in seasons with more rainy weather (such as the plum rain season in the south of the Yangtze River), they are easily affected by insufficient charging, or they cannot emit light due to damage to electronic circuit components such as batteries. In this case, the existing solar luminous road studs are functionally deficient and cannot achieve any desired effect. With the development of intelligent transportation equipment, underground solar luminous road studs need to be implanted with electronic components such as sensors or wireless communication modules, and sometimes they need to ensure 24-hour standby working status, which can easily cause insufficient power and make the underground road studs unable to perform their due functions. Therefore, the necessity of the reflective function is particularly prominent.

In recent years, with the improvement of road traffic safety awareness, the demand for solar buried road studs, as a widely used traffic safety product, has been continuously expanding, and its manufacturing technology has been continuously improving, especially the rapid development of intelligent road studs; but so far, there has been no technical progress and related reports on solar buried road studs with retro-reflective function at home and abroad, and no relevant information has been found on the Internet, and no application of such products has been seen in the industry.

In summary, how to ensure that the underground solar luminous road studs still have a certain reflective indication function under the above-mentioned specific circumstances, can withstand wheel crushing and foreign object impact, can adapt to the development trend of increasing traffic volume and increasing number of heavy-loaded and overloaded vehicles, and can better adapt to the development needs of intelligence has become a difficult problem that needs to be solved urgently in the industry.

Summary of the invention

In view of the shortcomings of existing products, the technical problem to be solved by the present invention is to provide an underground solar luminous reflective road stud with excellent retroreflective and luminous properties, a high-strength structure (a reinforced structure with high pressure resistance and high impact resistance) and a waterproof packaging structure.

As outdoor special optoelectronic equipment used in the field of traffic safety, it is the most difficult product to manufacture in the industry. It integrates multiple components and has a complex structure. Not only is the operating environment extremely harsh and complex, but it is also subject to multiple standards and restrictions, and many parameters are mutually restricted.

Under this premise, the present invention innovates the product structure and assembly method, mechanical structure, packaging structure, optical structure and optical path design of the buried solar luminous reflective road stud, and combines the characteristics of different types of retro-reflective parts to design a unique molding structure and combination method, and through a large number of computer simulations and theoretical calculations, combined with mechanical model tests, to achieve the optimal design purpose, especially in the limited size (mainly refers to the height of the part above the buried reference surface is limited) and limited space (mainly refers to the limited volume) to solve the problem of matching physical structure and optical angle, the lateral retro-reflection angle can be less than 45°, and the design is more flexible. In particular, the overall reflective performance is improved through the following innovative means:

By combining the accommodating hole slot (3d) with the hole slot opening at the top and the inclination angle θ1 with the retroreflector (3) with the deflection angle θ2 deflected in the horizontal direction, and by the angle compensation θ1-θ2=θ3 between θ1 and θ2, the angle θ3 between the main direction of the retroreflected light after the retroreflector (3) and the accommodating hole slot (3d) on the upper convex body (1t) and the buried reference plane is reduced, and the reflection efficiency in the horizontal direction (sometimes also called the retroreflection efficiency, which corresponds to the luminous intensity coefficient) can be effectively guaranteed, especially the retroreflection structure at a small angle to the ground has more advantages in reflecting light in the horizontal direction (sideways);

Creatively through the multi-point distributed configuration of multiple retroreflectors or the point-surface combined distributed configuration or the combination configuration of different types of retroreflectors (double or multiple configurations), the reflection angle (including the main direction of the retroreflected light and the retroreflected light range angle, the main direction of the retroreflected light is sometimes also called the reflection main axis, corresponding to the direction of the maximum value of the luminous intensity coefficient, the retroreflected light range angle corresponds to the incident angle of the headlight) matching and angle compensation are formed, and the overall retroreflection efficiency is improved by superposition of the reflection brightness of multiple retroreflectors.

Among them, the overall retroreflection efficiency and angle matching can be improved by the brightness superposition effect of the retroreflectors arranged in a front-to-back combination or/and a left-to-right combination.

The hole-type accommodating hole groove and the groove-type accommodating hole groove can be configured in combination and respectively combined with retroreflectors (3) of different structures or different types, and the brightness superposition effect of the retroreflectors can be used to improve the overall retroreflection efficiency and angle matching.

The present invention breaks through the technical limitations of reflective equipment, has a longer reflective sight distance, and is more beneficial to motor vehicle drivers. Under the premise of ensuring the advantages of underground road studs such as waterproof, pressure resistance, and impact resistance, it can not only ensure the luminous performance of the original light-emitting device, but even further improve the luminous performance, perfectly achieve the matching of parameters such as reflection angle and luminous angle, reflection efficiency and luminous brightness, and solve the problem that has been plaguing the industry for many years. It can also maximize the reflective performance of the retroreflective body, and can use the retroreflective body to reflect car lights to provide reflective instructions for motor vehicle drivers or pedestrians. The reflective sight distance can reach more than 150m, and the luminous sight distance can reach more than 500m, which can meet national and industry standards and meet various road usage conditions. In particular, in the above-mentioned specific situation of insufficient charging or exhaustion of power, high-quality reflective instructions can still be provided through the retroreflective body, and its reflection angle and reflective performance can achieve actual use effects.

Moreover, the inner side surface or inner wall of the upper convex body of the protective shell with relatively higher strength close to the upper opening of the accommodating cavity is matched with the outer side surface or outer wall of the top of the inner shell with a certain tolerance to form a combined structure of the upper convex body that can provide mechanical protection for the inner shell and/or the retroreflective body. This can not only protect the inner shell to a certain extent, making the overall structural strength higher, but also make the retroreflective body and the road spike shell more firmly combined. It can withstand high-frequency, high-load, high-speed wheel rolling and foreign body impact. After mechanical testing, its compressive resistance can be greater than 100kN, and can even reach more than 300kN, which can meet national standards such as GB19813 and GB24725, has a longer service life, and can be suitable for sections with large traffic volume, fast speed, and many overloaded and overweight vehicles. In particular, it can avoid accidental snow shoveling by snowplows in northern regions in winter, filling the market gap and greatly expanding the product's use field and application range.

By utilizing the complementary functions of retro-reflection and luminescence, some working power consumption can be saved, allowing solar energy storage components to have more design margins to achieve the purpose of intelligent control and better adapt to the trend of intelligent transportation development.

The present invention has both the advantages of buried luminous road studs and the characteristics of reflective road studs, has a very broad application prospect, can effectively reduce road traffic accidents and improve road traffic efficiency, and can bring huge social and economic benefits.

The specific technical solution of the present invention is: an underground solar-powered luminous reflective road stud, comprising a protective shell (1), an inner shell (2) having at least a top (top surface) of a transparent material structure, a retroreflector (3), a light-emitting device (4), a photovoltaic device (5), an electronic circuit component (6) containing an energy storage element (including but not limited to a control and drive circuit, an energy storage element), a packaging glue (including transparent glue or opaque glue, a sealant, a structural glue, a filling glue, preferably an epoxy glue, a silicone glue, a polyurethane glue) a cured molded body (7), and a fastener (8) (preferably a screw and a screw hole, a bolt and a nut).

The protective shell (1) is a cavity-shaped protective shell of an integral structure with a receiving cavity (1q) and an upper opening (1r) (sometimes also called a window) on the top, or a cavity-shaped protective shell of an assembled structure formed by assembling at least two parts, with a receiving cavity (1q) and an upper opening (1r) on the top (formed by two or more parts assembled by fasteners).

The inner shell (2) is a shell having an optical structure (including but not limited to a light refraction structure, a light reflection structure, a light focusing structure, a light diffusion structure, a light angle deflection structure, a light (optical axis) upward movement structure, etc.) at its transparent portion, and a housing cavity (2q) is provided below its transparent top.

The strength of the protective shell (1) (including but not limited to one or two or more of structural strength, compressive strength, impact strength, and wear resistance) is greater than the strength of the inner shell (2); the lower portion of the inner shell (2) is buried in the accommodating cavity (1q) of the protective shell (1), and is combined with the fastener (8) to form a partially protected double shell structure (generally a local double-layer structure or a local multi-layer structure except for the transparent top shell) with the transparent top of the inner shell (2) partially or completely exposed.

The top of the protective shell (1) is provided with at least two upper convex bodies (1t) (sometimes also called protrusions or ridges) whose tops are at a height H relative to the buried reference surface (acting as mechanical structures, mainly as supporting structures to bear loads and as protective structures to resist pressure, impact and other protective functions).

The top of the protective shell (1) or/and the top of the inner shell (2) is provided with an accommodating hole groove (3d) (including a groove-type accommodating hole groove or a hole-type accommodating hole groove), the number of the accommodating hole groove (3d) is one, two or more, the accommodating hole groove (3d) is combined with a retroreflector (3), which can improve the bonding strength of the retroreflector (3) and prevent the retroreflector (3) from loosening and falling off, wherein at least one of the retroreflectors (3) in the accommodating hole groove (3d) forms a retroreflective structure in which the angle between the main direction of its retroreflected light (corresponding to the retroreflective central axis with the highest reflection efficiency, sometimes also called the main retroreflective light axis) and the buried reference plane (the elevation angle in the horizontal direction) is less than 45° (further preferably less than 30°, and further preferably less than 15°),

The light emitting device (4) is an LED light emitting device. The light emitting device (4), the photovoltaic device (5), and the electronic circuit components (6) are assembled through circuit connection and packaged in the above-mentioned double shell structure in combination with the packaging glue cured molding (7) to form an underground solar light emitting reflective road stud with a side reflection function, a waterproof packaging structure, and a high-strength structure.

The inner side surface or inner wall of the upper convex body (1t) on the protective shell (1) close to the upper opening (1r) and the outer side surface or outer wall of the top of the inner shell (2) are matched with each other in a tolerance manner to form a combined structure in which the upper convex body (1t) can provide mechanical protection for the inner shell (2) and/or the retroreflector (3); the transparent top portion (lighting portion of the photovoltaic device) of at least the part where the photovoltaic device (5) is located in the inner shell (2) is exposed from the upper opening (1r) of the protective shell (1) and is higher than the lower portion of the protective shell (1). The protective shell (1) has a light emitting passage (sometimes also called an emitting light path or a light emitting path) through which the light emitting device (4) emits light from the inside to the outside through the optical structure on the transparent part of the inner shell (2) and the upper space (similar to the horizontal notch or the lateral notch) of the lower part (1a) of the protective shell (1). The cross-sectional structure thereof can be referred to as shown in FIG. 1 or FIG. 2 or FIG. 3 or FIG. 4 or FIG. 5 or FIG. 6 or FIG. 7 or FIG. 8 or FIG. 9 or FIG. 10.

Furthermore, the protective shell (1) is a cavity-shaped protective shell with a receiving cavity (1q) and an upper opening (1r) (sometimes also called a window).

The top of the protective shell (1) is provided with at least two upper convex bodies (1t) (sometimes also called upper protrusions or raised parts) at the edge of the unopened portion thereof, the inner edges of which are higher and the outer edges of which are lower but not lower than (equal to or higher than) the buried reference plane (a reference plane that is substantially flush with the road surface when the road stud is installed on the road), and the top of which is at a height H relative to the buried reference plane, wherein at least one of the upper convex bodies (1t) is provided with a receiving hole groove (3d), wherein the receiving hole groove (3d) is a hole-type receiving hole groove or/and a groove-type receiving hole groove, and a retroreflector (3) is combined in the receiving hole groove (3d) through a mosaic structure or/and an adhesive layer (9), so as to form a lateral retroreflective structure in which the angle between the main direction of the retroreflected light and the buried reference plane is less than 45° (i.e., biased toward the horizontal direction).

The light emitting device (4) is an LED light emitting device. The light emitting device (4), the photovoltaic device (5), and the electronic circuit components (6) are assembled through circuit connection and combined with the encapsulation glue cured molding (7) to be encapsulated in the accommodating cavity (2q) of the inner shell (2) to form a waterproof encapsulation inner shell structure (sometimes also called a waterproof encapsulation liner structure) with preliminary pressure resistance and impact resistance.

The lower part of the inner shell (2) is buried in the accommodating cavity (1q) of the protective shell (1), and the protective shell (1) and the waterproof encapsulated inner shell structure are combined via a fastener (8) structure to form an integral reinforcement structure, thereby forming an underground solar luminous reflective road stud with a lateral reflective function, a waterproof encapsulated structure, and a high-strength structure (further resistant to pressure and impact).

The inner side surface or inner side wall (inner part) of the upper convex body (1t) on the protective shell (1) near the upper opening (1r) and the outer side surface or outer side wall (outer part) of the top of the inner shell (2) are matched with each other in a tolerance manner to form a combined structure in which the upper convex body (1t) acts as a block structure (including a block) or/and the upper convex body (1t) acts as an edge protection structure (including an edge protection); the transparent top of the inner shell (2) including at least the part where the photovoltaic device (5) is located is exposed from the upper opening (1r) of the protective shell (1) and is higher than the low position (1a) of the protective shell (1); the height of the top end (top surface or top) of the inner shell (2) is slightly lower than or approximately equal to the height H of the upper convex body (1t) (the height of its top end relative to the buried reference plane) (therefore, the top of the inner shell is protected by the upper convex body, especially in the vehicle-facing direction); but The top end (top surface or top portion) of the retroreflector (3) in the receiving hole groove (3d) is higher than the lower portion (1a) of the protective shell (1), and the height of the top end (top surface or top portion) of the retroreflector (3) is slightly lower than or approximately equal to the height H of the upper convex body (1t) (therefore, the retroreflector is protected by the upper convex body in the direction of the oncoming vehicle), but higher than the lower portion (1a) of the protective shell (1), and the whole has a light emission channel in which at least one or at least one group of light emitting devices (4) emit light from the inside to the outside through the optical structure on the transparent portion of the inner shell (2) and the upper space of the lower portion (1a) of the protective shell (1), and forms a lateral (also called horizontally biased) light emitting structure in which the main light emission direction (corresponding to the light emission center axis with the highest light emission intensity) of at least one beam of light emitted through the above-mentioned light emission channel has an angle of less than 45° with the buried reference plane.

Furthermore, an upper convex body (1t) is provided on the top of the unopened portion near the edge of the front and rear side portions (front and rear ends) of the protective shell (1) (in the vehicle-facing direction, which can bear the brunt of the frontal impact and play a structural protection role), or/and an upper convex body (1t) is provided on the top of the unopened portion near the edge of the left and right side portions (left and right ends) of the protective shell (1) (which can serve as shoulder supports and play a structural protection role), the upper convex body (1t) of the protective shell (1) is a convex block block, or a convex section type retaining edge, or a combination of a convex block block and a convex section type retaining edge, or the upper convex body (1t) of the protective shell (1) is an upper convex body (1t) extending from low to high from its outer edge inward,

Or two or more upper convex bodies (1t) are provided on the top of the front side or/and the rear side of the protective shell (1) at the position close to the edge of the unopened part, and a low position (1a) relatively low but not lower than the buried reference plane is formed between the adjacent upper convex bodies (1t); or two or more upper convex bodies (1t) are provided on the top of the left side and right side of the protective shell (1) at the position close to the edge of the unopened part, and a low position (1a) relatively low but not lower than the buried reference plane is formed between the adjacent upper convex bodies (1t); or upper convex bodies (1t) are provided on the top of the front and rear side of the protective shell (1) at the position close to the edge of the unopened part and on the top of the left and right side of the protective shell (1) at the position close to the edge of the unopened part, and upper convex bodies (1t) are provided on the top of the left and right side of the protective shell (1), and a low position (1a) relatively low but not lower than the buried reference plane is formed between the upper convex bodies (1t) of the front and rear side of the protective shell (1) and the upper convex bodies (1t) of the left and right side of the protective shell (1);

Alternatively, the upper convex body (1t) of the front side (front end, corresponding to the vehicle-facing surface) or/and the rear side (rear end) of the protective shell (1) is respectively provided with a receiving hole groove (3d) opening forward or/and opening backward, and the receiving hole groove (3d) is combined with a retroreflector (3), or the upper convex body (1t) of the left side and the right side of the protective shell (1) is respectively provided with a receiving hole groove (3d) opening leftward or opening rightward, and the receiving hole groove (3d) is combined with a retroreflector (3), or the upper convex body (1t) of the left side and the right side of the protective shell (1) is provided with a receiving hole groove (3d) opening forward or/and opening backward, and the receiving hole groove (3d) is combined with a retroreflector (3).

Furthermore, a plurality of upper convex bodies (1t) are provided on the top of the protective shell (1) at a position close to the edge of the unopened portion, and each upper convex body (1t) is provided with a receiving hole groove (3d). The receiving hole groove (3d) is arranged in a front-to-back position combination or/and a left-to-right position combination and is respectively combined with a retroreflector (3). The retroreflection efficiency can be improved by the angle matching and brightness superposition effect of the retroreflectors arranged at multiple positions, as shown in FIGS. 11, 12, and 15.

Preferably, the upper convex body (1t) on the front side of the protective shell (1) is provided with a receiving hole groove (3d) opening toward the front, and the upper convex bodies (1t) on the left and right sides of the protective shell (1) are respectively provided with hole-type receiving hole grooves (3d) opening toward the front, and the receiving hole grooves (3d) are respectively combined with retroreflective bodies (3) with the main direction of retroreflected light facing toward the front, or/and, the upper convex body (1t) on the rear side of the protective shell (1) is provided with a receiving hole groove (3d) opening toward the rear, and the upper convex bodies (1t) on the left and right sides of the protective shell (1) are respectively provided with hole-type receiving hole grooves (3d) opening toward the rear, and the receiving hole grooves (3d) are respectively combined with retroreflective bodies (3) with the main direction of retroreflected light facing toward the rear.

Furthermore, a plurality of upper convex bodies (1t) are provided on the top of the protective shell (1) at the portion close to the edge of the unopened portion, and each upper convex body (1t) is provided with a receiving hole groove (3d), wherein the receiving hole groove (3d) is a combination of a hole-type receiving hole groove and a groove-type receiving hole groove, and the hole-type receiving hole groove and the groove-type receiving hole groove are respectively combined with retroreflectors (3) of different structures or different types. By combining the points and surfaces of the retroreflectors (3), the characteristics of different types of retroreflectors can be combined, and their strengths can be maximized and their weaknesses can be avoided to achieve an optimal combination configuration, so as to achieve angle matching and brightness superposition effects of multiple retroreflectors and improve the retroreflection efficiency, as shown in FIGS. 36-42.

Preferably, the upper convex body (1t) of the front side and/or the rear side of the protective shell (1) is provided with a groove-type accommodating hole (3d), and the groove-type accommodating hole (3d) is combined with a microprism-type retroreflector with an array structure composed of multiple microprisms with a reflective coating on the bottom, or a microprism-type retroreflector with an array structure composed of multiple microprisms with an air layer on the bottom, or an injection-molded microbead array combination retroreflector with a reflective bottom layer and multiple small lens units arranged in an array combination structure in an orderly manner. The upper convex body (1t) of the left and right sides of the protective shell (1) is provided with a hole-type accommodating hole (3d), and the hole-type accommodating hole (3d) is combined with a lens unit-type retroreflector with an optical lens structure with a spherical surface, a curved surface or a free surface, and a reflective coating on the bottom, which meets the regression reflection condition.

Furthermore, at least two upper convex bodies (1t) are provided at the top of the protective shell (1) at a portion close to the edge of the unopened portion thereof, the outer edge of which is lower but not lower than the buried reference plane, the top of which is at a height H relative to the buried reference plane, and which are arranged from low to high from the outer edge inward.

Furthermore, the upper convex body (1t) on the protective shell (1) is provided with a non-through type receiving hole groove (3d) with its opening facing outward or upward, the retroreflector (3) is embedded in the receiving hole groove (3d) from the top of its opening from top to bottom or from the outside of its opening from the outside to the inside, a glue receiving groove or a glue extrusion seam is provided between the retroreflector (3) and the bottom surface of the receiving hole groove (3d) or/and the reflector (3) and the side wall of the receiving hole groove (3d), and a bonding layer (9) is provided (retained) in the glue receiving groove or the glue extrusion seam, and the receiving hole groove (3d) is bonded to the retroreflector (3) through the bonding layer (9), [the above bonding layer (9) mainly functions to form a structural fixation between the retroreflector (3) and the opening top cover (1A), and can be a transparent bonding layer, a semi-transparent bonding layer or an opaque bonding layer, and the shape and thickness can be set as required, and sometimes can be common with the packaging glue cured molding (7)].

Alternatively, a through-type receiving hole groove (3d) is provided on the upper convex body (1t) on the protective shell (1), the retroreflector (3) is embedded in the receiving hole groove (3d) from the bottom to the top from the bottom of the through opening thereof, or is embedded in the receiving hole groove (3d) from the inside to the outside from the inside of the through opening thereof, a glue receiving groove or a glue extrusion seam is provided between the reflector (3) and the side wall of the receiving hole groove (3d), a bonding layer (9) is provided in the glue receiving groove or the glue extrusion seam, and the receiving hole groove (3d) is bonded to the retroreflector (3) via the bonding layer (9).

Furthermore, the accommodating hole groove (3d) of the upper convex body (1t) is composited with a retroreflective body (3) through a plastic welding structure (when the protective shell is made of an organic reinforced material).

Furthermore, a fixing hole (1k) is provided in the receiving hole groove (3d) of the upper convex body (1t), a fastening screw is provided in the fixing hole (1k), and the retroreflective body (3) is arranged in the receiving hole groove (3d) above the fastening screw (particularly suitable for pre-formed reflective marking patches after shearing).

Furthermore, the retroreflective body (3) is combined with the receiving hole groove (3d) of the protective shell (1) via a bonding layer (9) having a relatively high hardness, wherein the bonding layer (9) having a relatively high hardness is a hard glue-type (rigid) molded body formed by solidifying a liquid or molten glue.

Alternatively, the retroreflector (3) is combined with the receiving hole (3d) of the protective shell (1) via an adhesive layer (9) with relatively low hardness, wherein the adhesive layer (9) with relatively low hardness is a soft-glue (flexible) molded body formed by solidifying liquid or molten viscose.

Alternatively, the bonding layer (9) is an adhesive layer made of a transparent material, or is an bonding layer containing a reflection enhancing material (including but not limited to silver powder or aluminum powder) for improving reflection efficiency.

Alternatively, the adhesive layer (9) is an adhesive layer capable of secondary bonding, and the retroreflector (3) is a retroreflector capable of being bonded again to the receiving hole groove (3d) of the protective shell (1) through the adhesive layer.

Preferably, at least one hole-type accommodating hole groove (3d) with an opening facing outward or upward is provided on the upper convex body (1t), and the retroreflector (3) is a lens unit-type retroreflector (including a directional lens retroreflector unit or an omnidirectional lens retroreflector unit) having an optical lens structure with a spherical surface, a curved surface or a free surface, and a reflective coating on the bottom thereof, which satisfies the regression reflection condition (preferably a double spherical cylindrical glass lens body, commonly known as a cat's eye reflective bead, with a relatively large volume of a single bead, preferably with a diameter between 8 mm and 12 mm), and its reflection angle or its shape can be designed as required, and can be cylindrical, saucer-shaped, diamond-shaped, etc., and its optical structure can include an A3-type reflective structure in the national standard GB 24725, which is embedded in the hole-type accommodating hole groove (3d) and forms a fixed structure through an adhesive layer (9).

Preferably, at least one groove-type accommodating hole (3d) with an opening facing outward or upward is provided on the upper convex body (1t), and the retroreflector (3) is a retroreflector with a micro-prismatic structure, which may be a micro-prismatic retroreflector (generally a plate or sheet) with an array structure composed of multiple micro-prisms with a reflective coating at the bottom, or a micro-prismatic retroreflector (generally a plate or sheet) with an array structure composed of multiple micro-prisms with an air layer at the bottom. Its optical structure may include an A1 type reflective structure in the national standard GB 24725, which is embedded in the groove-type accommodating hole (3d) and forms a fixed structure through an adhesive layer (9).

Preferably, at least one groove-type accommodating hole (3d) with an opening facing outward or upward is provided on the upper convex body (1t), and the retroreflector (3) is an injection-molded microbead array combination retroreflector (small glass lens reflective beads are sometimes called glass beads, and the volume of a single bead is relatively small, preferably with a diameter between 3 mm and 5 mm) and is composed of a plurality of small glass lens reflective beads with a reflective bottom layer at the bottom, which are orderly arranged in an array combination structure. The optical structure thereof may include an A2 type reflective structure in the national standard GB 24725, which is embedded in the groove-type accommodating hole (3d) and forms a fixed structure through an adhesive layer (9).

Preferably, the upper convex body (1t) is provided with at least one groove-type receiving hole (3d) with an opening facing outward or upward, and the retroreflective body (3) is a plant-type retroreflective body (similar to a road reflective marking structure, including a preformed reflective marking sticker) having a plant (randomly scattered beads) structure formed by curing a plurality of glass reflective beads bonded to the surface of the adhesive layer (9) (preferably a two-component epoxy resin mixture or a two-component MMA resin mixture, or a hot-melt resin mixture), which is embedded in the groove-type receiving hole (3d) and forms a fixed structure through the adhesive layer (9).

Furthermore, the plurality of accommodating holes (3d) of the upper convex body (1t) are respectively provided with retroreflective bodies (3) of the above-mentioned two or more different types of retroreflective optical structures or retroreflective forming structures.

Preferably, a groove-type accommodating hole (3d) is provided on the top edge of the inner shell (2) or on the high-low transition surface of the side portion of the top portion close to the edge, and the retroreflector (3) is a microprismatic retroreflector with an array structure composed of a plurality of microprisms with a reflective coating at the bottom or a microprismatic retroreflector with an array structure composed of a plurality of microprisms with an air layer at the bottom, which is embedded in the groove-type accommodating hole (3d) of the inner shell (2) and forms a fixed structure through the adhesive layer (9).

Preferably, a groove-type accommodating hole (3d) is provided on the top edge of the inner shell (2) or on the high-low transition surface of the side portion of the top portion close to the edge, and the retroreflector (3) is a microprism-type retroreflector having an array structure composed of a plurality of microprisms, which is composited in the groove-type accommodating hole (3d) of the inner shell (2) by ultrasonic thermoplastic welding to form a retroreflective structure with an air layer between the bottom surface of the microprism-type retroreflector and the accommodating hole.

Preferably, a groove-type accommodating hole (3d) is provided on the top edge of the inner shell (2) or on the high-low transition surface of the side portion of the top portion close to the edge, and the retroreflector (3) is an injection-molded microbead array combination retroreflector composed of a plurality of small lens units with a reflective bottom layer arranged in an orderly manner in an array combination structure, and is embedded in the groove-type accommodating hole (3d) of the inner shell (2) and forms a fixed structure through an adhesive layer (9).

Preferably, a groove-type accommodating hole (3d) is provided on the top edge of the inner shell (2) or on the high-low transition surface of the side portion of the top portion close to the edge, and the retroreflector (3) is an injection-molded microbead array combination retroreflector composed of a plurality of small lens units with a reflective bottom layer arranged in an orderly manner in an array combination structure, and is composited in the groove-type accommodating hole (3d) of the inner shell (2) by an ultrasonic thermoplastic welding structure.

Furthermore, the plurality of accommodating holes (3d) of the inner shell (2) are respectively provided with retroreflective bodies (3) of the above-mentioned two or more different types of retroreflective optical structures or retroreflective molding structures.

Preferably, the angle θ3 between the main direction of the retroreflected light after the retroreflector (3) is combined with the receiving hole groove (3d) on the upper convex body (1t) and the buried reference plane is between 5° and 30°.

Preferably, the angle θ3 between the main direction of the retroreflected light after the retroreflector (3) is combined with the accommodating hole groove (3d) on the upper convex body (1t) and the buried reference plane is less than or equal to the unilateral range angle θ4 of the retroreflected light (that is, the angle between the incident light and the retroreflection center axis. The incident light with an incident angle less than the unilateral range angle θ4 of the retroreflected light can achieve effective return light reflection. The reflection efficiency of the incident light with an incident angle equal to the unilateral range angle θ4 of the retroreflected light can be equivalent to 25% to 50% of the reflection efficiency of the incident light along the retroreflection center axis).

Preferably, the single-side range angle θ4 of the retroreflected light of the retroreflector (3) is between 10° and 30°.

Preferably, the inclination angle θ1 of the opening of the accommodating hole groove (3d) of the upper protrusion (1t) [generally corresponding to the demoulding direction or axial direction or the normal direction of the bottom surface of the accommodating hole groove (3d)] is between 3° and 60°, wherein the inclination angle θ1 of the opening of the hole-type accommodating hole groove (3d) is between 3° and 25°, and the inclination angle θ1 of the opening of the groove-type accommodating hole groove (3d) is between 35° and 60°.

Preferably, the retroreflector (3) is a retroreflector whose main direction of retroreflected light and its normal angle or its central axis have a deflection angle θ2 (generally deflected in the horizontal direction after being coupled to the receiving hole groove), and the deflection angle θ2 is generally between 15° and 35°.

Preferably, the retroreflector (3) is a retroreflector without a deflection angle θ2 (i.e., θ2=0°), the opening direction inclination angle θ1 of the receiving hole groove (3d) of the upper convex body (1t), the angle θ3 between the main direction of the retroreflected light after the retroreflector (3) and the receiving hole groove (3d) on the upper convex body (1t) are combined and the buried reference plane, and the unilateral range angle θ4 of the retroreflected light of the retroreflector (3) satisfies: θ1=θ3≤θ4.

Preferably, the retroreflector (3) is a retroreflector with a self-contained deflection angle θ2, and the opening direction inclination angle θ1 of the receiving hole groove (3d) of the upper convex body (1t), the self-contained deflection angle θ2 of the retroreflector (3), the angle θ3 between the main direction of the retroreflected light after the retroreflector (3) and the upper convex body (1t) containment hole groove (3d) and the buried reference plane, and the single-side range angle θ4 of the retroreflected light of the retroreflector (3) satisfy:

θ1-θ2=θ3≤θ4.

Furthermore, the retroreflector (3) is a retroreflector with a reflective optical structure having a larger incident angle range and/or a larger observation angle range.

Preferably, the retroreflector (3) is a lens unit type retroreflector with a spherical optical lens structure and a reflective coating on the bottom thereof, the diameter of the retroreflective lens unit is between 8 mm and 12 mm, and the main direction θ3 of the retroreflected light of the retroreflector (3) after being combined with the accommodating hole groove (3d) is approximately equal to the inclination angle θ1 of the hole groove opening of the accommodating hole groove (3d).

Preferably, the retroreflector (3) is an injection-molded microbead array combination retroreflector composed of a plurality of small glass lens reflective beads with a reflective bottom layer arranged in an orderly manner in an array combination structure, and the diameter of the small glass lens reflective beads is between 3 mm and 5 mm.

Preferably, the retroreflector (3) is a plant-type retroreflector having a plant (randomly scattered beads)-type structure bonded and solidified to the surface of the bonding layer (9) with a plurality of glass reflective beads, and the diameter of the glass reflective beads solidified on the surface of the plant is less than 3 mm.

Furthermore, an upper convex body (1t) is provided on the top of a single side of the protective shell (1) (facing the main direction of travel of road vehicles when installed) at a position close to the edge of the unopened portion thereof, and the upper convex body (1t) is provided with a receiving hole groove (3d) with an opening facing outward or upward, and a retroreflector (3) is fixed in the receiving hole groove (3d) by means of a fitting structure and/or an adhesive layer (9), so as to form a retroreflective structure with a main direction of lateral retroreflective light, wherein the main direction of light emitted by at least part of the light emitting device (4) through the light emission channel and the main direction of retroreflective light of the part of the retroreflector (3) are arranged in the same side direction of the road stud in the horizontal direction [generally facing the front (facing the driving direction) or/and the rear (facing away from the driving direction) of the road stud], and the angle θ6 between the two is less than 25°.

Alternatively, the top of the protective shell (1) on opposite sides (facing and facing away from the main direction of travel of road vehicles when installed) is provided with upper convex bodies (1t) extending from the outer edge inward from low to high, and the upper convex bodies (1t) on the opposite sides are provided with accommodating holes (3d) with openings facing outward or upward, and the accommodating holes (3d) on the opposite sides are fixed with retroreflectors (3) through a mosaic structure and/or an adhesive layer (9), so as to form a bidirectional retroreflective structure with a main direction of lateral retroreflective light, wherein the main direction of light emitted by at least part of the light emitting devices (4) through the light emission channel and the main direction of retroreflective light of the part of the retroreflectors (3) are arranged on the same side of the road stud in the horizontal direction, and the angle θ6 between the two is less than 25°.

Alternatively, the top of multiple sides (generally including the above-mentioned two opposite sides) of the protective shell (1) is provided with upper convex bodies (1t) extending from the outer edge inward from low to high at the locations close to the edges of the unopened portions, and the upper convex bodies (1t) on each side are provided with accommodating holes (3d) with openings facing outward or upward, and the accommodating holes (3d) on each side are fixed with retroreflectors (3) through interlocking structures and/or adhesive layers (9), so as to form a multi-directional retroreflective structure with a main direction of lateral retroreflected light, wherein the main direction of light emitted by at least part of the light emitting devices (4) through the above-mentioned light emission channels and the main direction of retroreflected light of the above-mentioned part of the retroreflectors (3) are arranged in the same side direction of the road stud in the horizontal direction, and the angle θ6 between the two is less than 25°.

Furthermore, the light emitting portion of the inner shell (2) is provided with at least one of the optical structures of a light refraction structure, a light reflection structure, a light focusing structure, a light diffusion structure, a light angle deflection structure, and a light (optical axis) upward shifting structure.

Furthermore, the inner shell (2) has an optical structure that enables the emitted light from the space above the lower area (1a) of the protective shell (1) to be emitted at an angle where the included angle between the main light emission direction and the buried reference plane is less than 30 degrees.

Preferably, the inner shell (2) has an optical structure that allows the outgoing light from the space above the lower area (1a) of the protective shell (1) to be emitted at an angle of less than 15° between the main direction of light emission and the buried reference plane, thereby making the outgoing light have a longer viewing distance, as shown in FIG. 41 .

Further preferably, the inner shell (2) has an optical structure that enables the outgoing light from the space above the lower area (1a) of the protective shell (1) to be emitted at an angle of 0° between the main direction of light emission and the buried reference plane within an error range (horizontal emission), as shown in FIG8 .

Preferably, the inner shell (2) is provided with an inclined light-emitting surface (2e) (emitting surface) having a horizontal inclination angle between 25° and 60°.

Preferably, the light emission center axis of the light emitted by the light emitting device (4) after passing through the optical structure on the transparent part of the inner shell (2) falls at a position between 1/3 and 2/3 of the total height of the light emitting surface (2e), so as to ensure the light emission efficiency and improve the brightness of the emitted light.

Preferably, the thickness of the transparent top of the inner shell (2) is between 7 mm and 15 mm.

Preferably, the height of the transparent top surface of the inner shell (2) of the road spike relative to the buried reference plane is between 75% and 100% of the height H of the upper convex body (1t).

Furthermore, the light emitting device (4) comprises an LED light emitting body with a focusing lens, or the light emitting device (4) comprises an LED light emitting body with a half-intensity angle less than 45°.

Alternatively, the road stud as a whole comprises a light emission channel in which at least one or at least one group of light emitting devices (4) emit light from the inside to the outside through the optical structure on the transparent part of the inner shell (2) and the upper space of the lower area (1a) of the protective shell (1) in a planar, vertical or oblique manner, and forms a lateral light emitting structure in which the main direction of at least one beam of emitted light through the light emission channel has an angle of less than 15° with the buried reference plane,

Alternatively, a plurality or a plurality of groups of light-emitting devices (4) are arranged in the accommodating cavity (2q) of the inner shell (2), or light-emitting devices (4) with two or more main light-emitting wavelengths (two-color or multi-color light-emitting) are arranged in the accommodating cavity (2q) of the inner shell (2), or light-emitting devices (4) with different packaging structures are arranged in the accommodating cavity (2q) of the inner shell (2), or light-emitting devices (4) with different main light-emitting directions are arranged in the accommodating cavity (2q) of the inner shell (2), or light-emitting devices (4) with different light-emitting angles are arranged in the accommodating cavity (2q) of the inner shell (2).

Furthermore, the main direction of light emitted by part of the light emitting devices (4) through the light emission channel and the main direction of retroreflected light by part of the retroreflector (3) are arranged on the same side of the road stud in the horizontal direction, and the angle θ6 between the two is less than 25°.

Preferably, the main direction of light emitted by part of the light emitting devices (4) through the light emission channel and the main direction of retroreflected light by part of the retroreflector (3) are arranged on the same side of the road stud in the horizontal direction, and the angle θ6 between the two is less than 5°.

Further preferably, the main direction of light emitted by part of the light emitting devices (4) through the light emission channel and the main direction of retroreflected light by part of the retroreflector (3) are arranged on the same side of the road stud in the horizontal direction and the angle θ6 between the two is 0° within the error range.

Further, the protective shell (1) is a cavity-shaped protective shell having an upper opening (1r) (serving as the final upper opening) assembled by a fastener (8) structure, comprising an open top cover having an upper opening (1r) in the middle or substantially middle part thereof and an open cavity-shaped lower shell having an opening facing upward and a diameter greater than that of the upper opening (1r); or the protective shell (1) is a cavity-shaped protective shell having an assembled structure, comprising an upper shell having upper and lower openings and a diameter of the lower opening greater than or equal to that of the upper opening (1r), and a lower shell or a bottom cover assembled by a fastener (8) structure.

Alternatively, the protective shell (1) is a cavity-shaped protective shell having an assembled structure, which is composed of at least two arc-segment top blocks with fixing holes and a cavity-shaped lower shell with an upper opening, assembled through a fastener (8) structure;

Alternatively, the inner shell (2) is a transparent shell of an integrated structure with a lower opening, or the inner shell (2) is an inner shell of a composite structure formed by assembling a transparent upper shell with a lower opening, a lower shell or a bottom cover, or the inner shell (2) is an inner shell of an assembled structure formed by assembling a transparent upper shell with a lower opening, a lower shell or a bottom cover;

Alternatively, the inner shell (2) is embedded in the accommodating cavity (1q) of the protective shell (1) from top to bottom and is combined with the fastener (8) to form an assembly structure, or the inner shell (2) is embedded in the accommodating cavity (1q) of the protective shell (1) from bottom to top and is combined with the fastener (8) to form an assembly structure.

Furthermore, the protective shell (1) is a protective bottom shell of an assembled structure, or a protective bottom shell of a composite structure, or the protective shell (1) is a shell of an organic material injection molding structure, or a shell of a non-metallic composite material compression molding structure, or a shell of a metal die-casting molding structure, or a shell of a metal forging molding structure.

Furthermore, the top edge of the protective shell (1) is circular or symmetrically polygonal in top view, and the shape of the bottom or lower portion can be designed as required.

Furthermore, an upper convex body (1t) is provided at a portion of the top of the protective shell (1) close to the edge of the unopened portion thereof, with a buffer surface (1h) extending from low to high from the outer edge inward, and the buffer surface (1h) of the upper convex body (1t) is an inclined surface, a folded surface or a curved surface.

Preferably, the height of the protective shell (1) below the buried reference surface is between 40 mm and 120 mm.

Preferably, the outer diameter of the protective shell (1) at the location of the buried reference surface is between 120 mm and 220 mm.

Furthermore, the upper convex body (1t) is an upper convex body whose side edge transitions from low to high with an inclined surface, a folded surface or an arc surface, or the upper convex body (1t) is an upper convex body whose inner edge forms an inner wall structure from low to high with a vertical surface.

Preferably, the upper convex body (1t) is a convex block-type upper convex body, a convex segment-type upper convex body, an arc segment-type upper convex body, or a combination of two or more of the above.

Furthermore, the intersections of the various surfaces of the upper convex body (1t) are transitioned through curved surfaces and/or folded surfaces (to reduce damage caused by bumps).

Furthermore, the upper convex body (1t) is provided with a notch (permeable to light) or a groove (permeable to water overflow) or a hole (such as a fixing screw hole) or an anti-slip structure (generally an anti-slip pattern or anti-slip protrusion).

Preferably, a height H of the top end of the upper protrusion (1t) relative to the buried reference surface is between 7 mm and 12 mm.

Furthermore, the protective shell (1) is provided with a structural reinforcement auxiliary structure (e.g. a reinforcement rib or a concave-convex structure) or an assembly auxiliary structure (e.g. an assembly positioning structure or an assembly limiting structure used when assembling a product) or an installation auxiliary structure (e.g. a height positioning structure or a direction positioning structure used when burying road spikes in the road surface).

Furthermore, the upper edge of the protective shell (1) (where the buried reference surface is located) is provided with an extension portion (also called a pressure edge) that extends outward (horizontally), or is provided with a plurality of convex bodies (also called convex limiting support bodies) that are arranged at a certain interval and extend outward (horizontally), as shown in Figures 44 and 45, which can play a limiting role when installed on the road surface or prevent sinking after installation on the road surface.

Furthermore, the fixing hole (1k) is a sunken fixing screw hole, and the fastener (8) is a screw or a bolt.

Furthermore, the inner shell (2) is a transparent injection-molded shell with a bottom opening downward, or an inner shell with a composite structure in which a transparent injection-molded shell with a bottom opening downward and a bottom cover are combined via an ultrasonic composite structure, or an inner shell with a composite structure in which a transparent injection-molded shell with a bottom opening downward and a bottom shell are combined via an ultrasonic composite structure.

Furthermore, the central portion of the top of the inner shell (2) has a cross-shaped raised main structure relative to the buried reference plane.

Furthermore, an anti-slip structure (generally anti-slip lines or anti-slip bumps) is provided on the top of the inner shell (2).

Furthermore, the inner shell (2) is provided with a structural reinforcement auxiliary structure (such as a concave-convex structure) or an assembly auxiliary structure (such as an assembly positioning structure or an assembly limiting structure used during product assembly).

Furthermore, a light emitting device (4) is provided in the accommodating cavity (2q) near the front and rear sides of the inner shell (2) or/and in the accommodating cavity (2q) near the left and right sides thereof, or a photovoltaic device (5) is provided in the middle portion of the transparent top of the inner shell (2) or below the middle portion.

Furthermore, the electronic circuit component (6) is connected to a wireless module (having a signal receiving and/or transmitting function), or is connected to an intelligent control module (having a data processing function), or is connected to a sensor.

Furthermore, a long afterglow luminous body (10) is also provided in the accommodation hole groove (3d) of the upper convex body (1t).

Furthermore, a long afterglow light emitter (10) is provided in the fixing hole (1k) of the protective shell (1) [it can be in the redundant sunken space above the fastening screw in the fixing hole (1k), or the long afterglow light emitter (10) can be directly provided in the fixing hole (1k) without installing the fastening screw].

Furthermore, a long afterglow light emitter (10) which can be excited by the light-emitting device (4) is provided below the transparent top of the inner shell (2).

Furthermore, the long afterglow luminescent body (10) is a solidified mixed body of a long afterglow luminescent material and a liquid transparent medium, or the long afterglow luminescent body (10) is a long afterglow luminescent body (10) with a white adhesive layer (9), or the long afterglow luminescent body (10) is a solidified body of a transparent (liquid) encapsulating glue (7) mixed with long afterglow luminescent powder (the transparent encapsulating glue is preferably a two-component transparent epoxy resin mixture or a two-component transparent MMA resin mixture).

Furthermore, a fluorescent body (daylight type) is also provided in the accommodation hole groove (3d) of the upper convex body (1t).

Furthermore, a fluorescent body is provided in the fixing hole (1k) of the protective shell (1) [it can be in the redundant sunken space above the fastening screw in the fixing hole (1k), or the fluorescent body can be directly provided in the fixing hole (1k) without installing the fastening screw].

Furthermore, the phosphor is a mixed solidified body of a fluorescent material and a liquid transparent medium, or the phosphor is a phosphor with a white adhesive layer (9), or the phosphor is a solidified body of a transparent encapsulating adhesive (7) mixed with a fluorescent material (the transparent encapsulating adhesive is preferably a two-component transparent epoxy resin mixture or a two-component transparent MMA resin mixture).

Furthermore, a light emitting device (4) is provided in the accommodating cavity (2q) of the inner shell (2) for emitting light upward (vertically upward or obliquely upward) from the inside out through a transparent portion of the inner shell (2), so as to provide LED light emitting instructions to pedestrians and non-motor vehicle drivers. In particular, the transparent shell above the light emitting device (4) is provided with an optical diffusion structure, so that the LED light emission is softer and less dazzling.

Furthermore, a sealing glue solidified molded body (7) is provided between the protective shell (1) and the inner shell (2), or a sealing glue solidified molded body (7) is provided between the protective shell (1) and the waterproof sealing inner shell structure, or a sealing glue solidified molded body (7) is provided between the gaps at the tolerance fitting parts, thereby forming a further secondary waterproof sealing structure or/and a reinforcing structure combined with the sealing glue, so that the inner shell (2) and the protective shell (1) can be combined into one body through the sealing glue;

Alternatively, a seal or an elastomer is provided between the protective shell (1) and the inner shell (2), or a seal or an elastomer is provided between the protective shell (1) and the waterproof encapsulated inner shell structure, or a seal or an elastomer is provided between the gaps at the tolerance fitting parts, thereby forming a shock-absorbing and buffering structure, so that the inner shell (2) can be better protected;

Alternatively, the top or bottom of the protective shell (1), the bottom of the inner shell (2), or the joint between the protective shell (1) and the inner shell (2) is provided with a glue injection hole, a glue injection port or a glue injection seam, or is provided with an exhaust hole.

Furthermore, the protective shell (1) is a cavity-shaped protective shell of an assembled structure, comprising an open top cover (1A) provided with an upper opening (sometimes also called a window) (1r) in the middle or substantially the middle thereof, and a lower shell (1B) (serving as an underground main body) having an upwardly opening accommodating cavity (1q) with a diameter smaller than or equal to the diameter of the upward opening of the accommodating cavity (1q).

The opening top cover (1A) is provided with a plurality of (generally not less than 4) fixing holes (1k) for assembling fasteners (8).

The lower shell (1B) is a shell consisting of its bottom (sometimes also called bottom surface) and side surrounding parts. The side surrounding parts of the lower shell (1B) are provided with screw holes corresponding to the fixing holes (1k) on the open top cover (1A).

At least the top of the inner shell (2) is made of a transparent material structure, and the central part of the top is convex to form an upper convex part, the top surface of the upper convex part is a pressure-bearing surface, and the edge of the inner shell (2) adjacent to the bottom of the upper convex part has a (edge) pressing part (generally a pressing edge part) (2t) relatively lower than the top surface, thereby forming an inner shell (integrally formed or assembled or compositely formed) with a stepped structure that is small at the top and large at the bottom (the exposed top is smaller and the lower part is larger), and a downward-opening accommodating cavity (2q) is provided below the transparent top.

The opening top cover (1A) is provided with at least two upper convex bodies (1t) having lower outer edges and higher inner edges near the upper opening (1r) and higher than the buried reference plane. Generally, the outer edges of the opening top cover (1A) transition from low to high with a certain slope inward (central direction), which can play a buffering and protective role. At least one of the upper convex bodies (1t) is provided with a receiving hole groove (1d). A retroreflector (3) higher than the upper edge of the protective shell (1) (generally corresponding to the buried reference plane installed on the road surface) is fixed in the receiving hole groove (3d) through a chimeric structure (including an interference fit and a concave-convex structure) or/and an adhesive layer (9), forming a lateral (including lateral horizontal reflection and lateral oblique upward reflection) retroreflective structure in which the main direction of the retroreflected light is less than 30 degrees from the buried reference plane.

The light emitting device (4) is an LED light emitting device.

The open top cover (1A) is fixed to the top of the lower shell (1B) through the fasteners (8) via the fixing holes (1k) to form a protective bottom shell of an assembled structure with relatively large strength (including but not limited to one or more of structural strength, compressive strength, impact strength, and wear resistance), and the waterproof encapsulated inner shell structure is locked therein, wherein the upper convex portion of the inner shell (2) is engaged with the upper opening (1r) of the open top cover (1A), the higher inner side of the upper convex body (1t) is in close contact with the outer side of the upper convex portion of the inner shell (2), and the bottom surface or bottom of the open top cover (1A) is pressed onto the lower shell (1B) and the pressed portion (2t) of the inner shell (2), respectively, to form an overall reinforced structure.

The upper convex body (1t) on the protective shell (1) is close to the inner side surface or inner side wall of the upper opening (1r) and the outer side surface or outer side wall of the top of the inner shell (2) in a tolerance matching manner to form a combined structure in which the upper convex body (1t) acts as a protective block structure or/and the upper convex body (1t) acts as an edge protection structure; at least the transparent top of the inner shell (2) where the photovoltaic device (5) is located is exposed from the upper opening (1r) of the open top cover (1A) and is higher than the lower area (1a) of the protective shell (1); the top height of the inner shell (2) is slightly lower than or approximately equal to the height H of the upper convex body (1t); and the whole is provided with a light emission channel in which at least one or at least one group of light-emitting devices (4) emit light from the inside to the outside through the optical structure on the transparent part of the inner shell (2) and the space above the lower area (1a) of the open top cover (1A); and a lateral light-emitting structure is formed in which the main direction of light emission of at least one beam of light emitted through the above light emission channel has an angle of less than 30° with the buried reference plane.

Further, with reference to FIGS. 5 and 6 , the protective shell (1) is a cavity-shaped protective shell having an accommodating cavity (1q) and an upper opening (1r) at the top thereof, wherein the upper convex body (1t) and the top of the protective shell (1) form a one-piece structure. The outer diameter of the portion where the upper edge of the protective shell (1) is located is greater than or equal to the outer diameter of the lower portion of the protective shell (1) [i.e., the portion where the upper edge of the protective shell (1) is located is larger and the lower portion is smaller].

The inner shell (2) is an inner shell having at least a top portion made of a transparent material and an extension portion at the top edge to form a larger top and smaller bottom portion. The outer diameter of the inner shell (2) is less than or equal to the outer diameter of the portion where the upper edge of the protective shell (1) is located. The top surface of the transparent top portion is a pressure-bearing surface. A accommodating cavity (2q) opening downward is provided below the transparent top portion. A fixing hole for assembling a fastener (8) is provided on the extension portion of the transparent top portion of the inner shell (2).

The top of the protective shell (1) is provided with at least two upper convex bodies (1t) at the edge of the unopened portion thereof, the inner edge portion of which is higher near the upper opening (1r) and the outer edge portion of which is lower but not lower than the buried reference plane. Correspondingly, other portions without the upper convex bodies (1t) form a relatively low position (1a) but not lower than the buried reference plane, wherein at least one of the upper convex bodies (1t) is provided with a receiving hole groove (3d), and a retroreflector (3) is fixed in the receiving hole groove (3d) by means of a chimeric structure and/or an adhesive layer (9), so as to form a lateral retroreflective structure in which the main direction of the retroreflected light and the buried reference plane have an angle of less than 30 degrees. The protective shell (1) is provided with a plurality of fixing holes (1k) for assembling fasteners (8).

A fixing hole for assembling a fastener (8) is provided at the edge of the transparent top of the inner shell (2) or at the edge close to the transparent top. Furthermore, an extension portion (extended edge or pressed edge portion) corresponding to the low position (1a) on the protective shell (1) is provided at the edge of the transparent top of the inner shell (2).

The light emitting device (4) is an LED light emitting device.

The lower part of the inner shell (2) is buried in the accommodating cavity (1q) of the protective shell (1), the extended part at the top of the inner shell (2) is pressed onto the corresponding part of the protective shell (1) from top to bottom, and the waterproof encapsulated inner shell structure is combined with the protective shell (1) through the fixing hole (1k) by means of a fastener (8) to form an integral reinforced structure.

The inner side surface or inner side wall of the upper convex body (1t) on the protective shell (1) close to the upper opening (1r) and the outer side surface or outer side wall of the top of the inner shell (2) are matched with each other in a tolerance manner to form a combined structure in which the upper convex body (1t) acts as a protective block structure or/and the upper convex body (1t) acts as an edge protection structure, and the overall structure comprises a light emission channel in which at least one or at least one group of light emitting devices (4) emit light from the inside to the outside through the optical structure on the transparent part of the inner shell (2) and the upper space of the lower area (1a) of the protective shell (1), and a lateral light emitting structure is formed in which the main light emission direction of at least one beam of light emitted through the above-mentioned light emission channel has an angle of less than 30 degrees with the buried reference plane.

Further, referring to FIG. 7 , the protective shell (1) is a cavity-shaped protective shell with an accommodating cavity (1q) and an upper opening (1r) on the top of the protective shell.

The inner shell (2) is an inner shell having at least a top portion made of a transparent material structure and an extension portion at the top edge to form a larger top and smaller bottom portion. The top surface of the transparent top portion is a pressure-bearing surface. A accommodating cavity (2q) opening downward is provided below the transparent top portion. A fixing hole for assembling a fastener (8) is provided on the extension portion of the transparent top portion of the inner shell (2).

An accommodation hole groove (3d) is provided on the top edge of the inner shell (2) or the high-low transition surface (side tilt portion or slope surface) of the side portion near the edge of the top, and a retroreflector (3) is combined in the accommodation hole groove (3d) through a plastic welding structure to form a lateral retroreflective structure in which the angle between the main direction of the retroreflected light and the buried reference plane is less than 30 degrees.

The light emitting device (4) is an LED light emitting device.

The lower part of the inner shell (2) is buried in the accommodating cavity (1q) of the protective shell (1), the extended part at the top of the inner shell (2) is pressed onto the corresponding part of the protective shell (1) from top to bottom, and the waterproof encapsulated inner shell structure is combined with the protective shell (1) through the fixing hole (1k) by the fastener (8) to form an integral reinforced structure.

The inner side surface or inner side wall of the upper convex body (1t) on the protective shell (1) near the upper opening (1r) and the outer side surface or outer side wall of the top of the inner shell (2) form a combined structure in which the upper convex body (1t) acts as a protective block structure or/and the upper convex body (1t) acts as an edge protection structure in a tolerance matching manner; the retroreflector (3) in the accommodating hole groove (3d) on the inner shell (2) is not lower than the buried reference plane; the top (top) of the inner shell (2) or the top surface (top) of the retroreflector (3) has a height slightly lower than or approximately equal to the height H of the upper convex body (1t); and the whole has a light emission channel in which at least one or at least one group of light emitting devices (4) emit light from the inside to the outside through the optical structure on the transparent part of the inner shell (2) and the space above the lower area (1a) of the protective shell (1); and a lateral light emitting structure is formed in which the main direction of light emission of at least one beam of light emitted through the above light emission channel has an angle of less than 30° with the buried reference plane.

Preferably, as shown in FIGS. 1 and 2, the open top cover (1A) is a ring-shaped top cover (sometimes also called a ring cover) having an upper opening (1r) in the middle thereof, the open top cover (1A) is provided with an upper convex body (1t) extending from low to high from its outer edge inward, and a relatively (relative to the upper convex body) lower area (1a) is provided between adjacent upper convex bodies (1t), the upper convex body (1t) is provided with a receiving hole groove (3d) opening outward or upward, and a retroreflector (3) is fixed in the receiving hole groove (3d) by a mosaic structure and/or an adhesive layer (9), so as to form a retroreflective structure in which the angle between the main direction of the retroreflective light (corresponding to the retroreflective central axis with the highest reflective efficiency) and the buried reference plane is less than 30 degrees, and the structure can be referred to as shown in FIGS. 11 to 15,

The lower shell (1B) is a protective bottom shell consisting of a bottom and its side surrounding part (generally a side wall), with an upwardly opening accommodating cavity (1q), and is composed of a ring part with a larger diameter at the upper edge and an accommodating cavity shell with a smaller diameter at the lower portion, and is larger at the top and smaller at the bottom. The inner edge shape of the ring part at the upper edge of the lower shell (1B) corresponds to the outer edge shape of the opening top cover (1A), and the inner edge diameter of the ring part is greater than or equal to the outer edge diameter of the opening top cover (1A) (similar to an overbite-type structure). The ring part at the upper edge of the lower shell (1B) and the accommodating cavity shell at the lower portion are connected by a stepped inner ring (1T). The side surrounding part of the lower shell (1B) is provided with a fixing hole pile (1B-z) corresponding to the fixing hole (1k) of the opening top cover (1A).

At least the top of the inner shell (2) is made of a transparent material structure, the central part of the top is convex to form an upper convex part, the top surface of the upper convex part is a pressure-bearing surface, the edge of the inner shell (2) adjacent to the bottom of the upper convex part has a pressing part (2t) relatively lower than the top surface, thereby forming an inner shell with a stepped structure that is small at the top and large at the bottom, a accommodating cavity (2q) with an opening downward is provided below the transparent top, a light-emitting device (4) and a photovoltaic device (5) are provided below the top of the inner shell (2), and an electronic circuit component (6) is provided in the accommodating cavity (2q) of the inner shell (2).

The waterproof encapsulated inner shell structure is embedded in the bottom surface of the accommodating cavity (1q) of the lower shell (1B) from top to bottom through tolerance fitting, the opening top cover (1A) is aligned and embedded in the upward opening of the lower shell (1B) and is fixed to the stepped inner ring (1T) of the lower shell (1B) through a fastener (8) structure to form a protective shell (1) with an assembled structure having relatively high structural strength, and the waterproof encapsulated inner shell structure is locked in the protective shell (1) to form an overall reinforced structure.

The bottom surface or bottom of the opening top cover (1A) is respectively pressed onto the stepped inner ring (1T) of the lower shell (1B) and the pressing portion (2t) of the inner shell (2); the ring portion of the upper edge of the lower shell (1B) surrounds the outer edge of the opening top cover (1A); and the whole has a light emission channel in which at least one or at least one group of light emitting devices (4) emit light from the inside to the outside through the optical structure on the transparent part of the inner shell (2) and the upper space of the lower area (1a) of the protective shell (1); and a lateral light emission structure is formed in which the main direction of light emission of at least one beam of light emitted through the above light emission channel has an angle of less than 30 degrees with the buried reference plane.

Further, with reference to FIGS. 3 and 4 , the open top cover (1A) is a ring-shaped top cover having an upper opening (1r) in the middle thereof, and an upper convex body (1t) extending from low to high from the outer edge thereof inwardly is provided on the open top cover (1A), forming a low area (1a) between adjacent upper convex bodies (1t), and a receiving hole groove (3d) opening outward or upward is provided on the upper convex body (1t), and a retroreflector (3) is fixed in the receiving hole groove (3d) by means of a chimeric structure and/or an adhesive layer (9), so as to form a retroreflective structure in which the angle between the main direction of the retroreflected light and the buried reference plane is less than 30°. The structure thereof can be referred to as shown in FIGS. 11 to 15 ,

The lower shell (1B) is a protective bottom shell (similar to a canopy-type structure) consisting of a bottom and its side surrounding parts, with a receiving cavity (1q) opening upward, and the outer edge diameter at the upper edge of the receiving cavity (1q) is less than or equal to the outer edge diameter of the opening top cover (1A). The side surrounding parts of the lower shell (1B) are provided with fixing hole piles (1B-z) corresponding to the fixing holes (1k) of the opening top cover (1A).

At least the top of the inner shell (2) is made of a transparent material structure, and the central part of the top is convex to form an upper convex part, and the top surface of the upper convex part is a pressure-bearing surface. The edge of the inner shell (2) adjacent to the bottom of the upper convex part has a pressing part (2t) relatively lower than its top surface, thereby forming an inner shell with a stepped structure that is small at the top and large at the bottom. A accommodating cavity (2q) with an opening downward is provided below the transparent top. A light-emitting device (4) and a photovoltaic device (5) are provided below the top of the inner shell (2). An electronic circuit component (6) is provided in the accommodating cavity (2q) of the inner shell (2).

The waterproof encapsulated inner shell structure is embedded in the bottom surface of the accommodating cavity (1q) of the lower shell (1B) from top to bottom through tolerance fitting, the open top cover (1A) is pressed onto the upper edge of the lower shell (1B) and fixed through a fastener (8) structure to form a protective shell (1) of an assembled structure with relatively high structural strength, and the waterproof encapsulated inner shell structure is locked in the protective shell (1) to form an overall reinforced structure.

The bottom surface or bottom of the opening top cover (1A) is respectively pressed onto the upper edge of the lower shell (1B) and the pressing portion (2t) of the inner shell (2), and the whole is provided with a light emission channel in which at least one or at least one group of light emitting devices (4) emit light from the inside to the outside through the optical structure on the transparent part of the inner shell (2) and the upper space of the lower area (1a) of the protective shell (1), and a lateral light emission structure is formed in which the main direction of light emission of at least one beam of light emitted through the light emission channel has an angle of less than 30 degrees with the buried reference plane.

Furthermore, the outer edge of the opening top cover (1A) is generally circular or circular with line cuts or symmetrical polygonal or symmetrical polygonal with rounded corners when viewed from above.

Furthermore, the opening top cover (1A) is an annular edge ring structure, and the edge portion of the annular edge ring is provided with prying structures (1A-q) (which can also serve as glue filling ports) at intervals, or the opening top cover (1A) is an opening top cover composed of two arc segments or multiple arc segments, or the opening top cover (1A) is a polygonal edge ring structure, and the edge portion of the polygonal edge ring is provided with prying structures (1A-q) at intervals.

Furthermore, the opening top cover (1A) is provided with an upper convex body (1t) extending from the outer edge thereof inwardly with a buffer surface (1h) from low to high, and the buffer surface (1h) of the upper convex body (1t) is an inclined surface, a folded surface or a curved surface.

Furthermore, the upper protrusion (1t) is composed of two or more upper protrusions arranged at intervals on the opening top cover (1A).

Furthermore, the top view of the upper opening (1r) is similar to a quadrilateral with a screw hole recessed, or similar to a hexagon with a screw hole recessed, or similar to an octagon with a screw hole recessed, or similar to a cross with a screw hole recessed, or similar to a convex shape with a screw hole recessed, or similar to a Chinese character with a screw hole recessed.

Furthermore, the upper portion or upper edge of the lower shell (1B) is generally circular in shape when viewed from above, and the shape of the lower portion of the lower shell (1B) can be designed as required.

Furthermore, the outer peripheral portion of the lower shell (1B) is provided with a concave-convex structure (1j) (preferably vertical ribs), which can improve the structural strength and installation firmness of the shell.

Furthermore, a downwardly convex fixing hole pile head (1A-z) is provided below the fixing hole (1k) of the opening top cover (1A), a fixing hole pile position (1B-w) corresponding to the fixing hole pile head (1A-z) of the opening top cover (1A) is provided on the side surrounding portion of the lower shell (1B), and a fixing hole pile column (1B-z) supporting the fixing hole pile head (1A-z) is provided below the fixing hole pile position (1B-w).

The open top cover (1A) and the lower shell (1B) are combined by means of a fastener (8) structure to form a protective shell (1) of an assembled structure having a relatively high structural strength, and the waterproof encapsulated inner shell structure is locked in the protective shell (1), wherein the fixing hole pile head (1A-z) of the open top cover (1A) is pressed into the fixing hole pile position (1B-w) above the fixing hole pile column (1B-z) of the lower shell (1B).

Furthermore, a downwardly convex structural thickening section (1A-s) is provided below the opening top cover (1A) [preferably provided below the low area (1a) with relatively low strength, in particular at the location of the fixing hole (1k), to enhance its strength], a recessed section (2a) is provided on the press-fitting portion (2t) of the inner shell (2) and is opposite to the downwardly convex structural thickening section (1A-s) of the opening top cover (1A), and a recessed section (1B-a) is provided on the stepped inner ring (1T) of the lower shell (1B) and is opposite to the downwardly convex structural thickening section (1A-s) of the opening top cover (1A).

The opening top cover (1A) is aligned and embedded in the upward opening of the lower shell (1B) and is fixed to the stepped inner ring (1T) of the lower shell (1B) through a fastener (8) structure to form an assembled protective shell (1) with relatively high structural strength. The waterproof encapsulated inner shell structure is locked in the protective shell (1), wherein the downwardly convex structural thickened section (1A-s) of the opening top cover (1A) is pressed into the recessed portion (2a) of the inner shell (2) and the recessed portion (1B-a) of the lower shell (1B).

Furthermore, the opening top cover (1A) is provided with a long afterglow luminescent coating, or the opening top cover (1A) is a mixed injection-molded body of a long afterglow luminescent material and a liquid or molten transparent medium.

Furthermore, the opening top cover (1A) is provided with a fluorescent coating, or the opening top cover (1A) is a mixed injection-molded body of a fluorescent material and a liquid or molten transparent medium.

Furthermore, a packaging glue solidified body (7) is provided between the opening top cover (1A) and the inner shell (2) (including the gap between the two), or a packaging glue solidified body (7) is provided between the opening top cover (1A) and the lower shell (1B) (including the gap between the two), or a packaging glue solidified body (7) is provided between the lower shell (1B) and the inner shell (2) (including the gap between the two), or a packaging glue solidified body (7) is provided between the opening top cover (1A) and the waterproof packaging inner shell structure (including the gap between the two), or a packaging glue solidified body (7) is provided between the lower shell (1B) and the waterproof packaging inner shell structure (including the gap between the two), or a packaging glue solidified body (7) is provided between the gaps at the tolerance fitting parts: a further secondary waterproof packaging structure or/and a reinforcement structure are formed. Generally, glue can be injected from the glue injection hole at the bottom of the protective shell (1) or glue can be added from the gap between the open top cover (1A) and the inner shell (2).

Furthermore, the opening top cover (1A) is an annular edge ring structure, and the front and rear sides of the annular edge ring are symmetrically provided with upper convex bodies (1t) extending from low to high with a buffer surface (1h) from the outer edge to the inside, and the left and right sides of the annular edge ring are symmetrically provided with upper convex bodies (1t) extending from low to high with a buffer surface (1h) from the outer edge to the inside, respectively. Four low areas (1a) are provided between the adjacent front, rear, left and right upper convex bodies (1t), and the side parts of the exposed part of the inner shell (2) and the left and right sides of the front and rear upper convex bodies (1t) of the opening top cover (1A) are provided with a plurality of lower areas (1a). The upper space of the low area (1a) forms light emission channels for the light emitting device (4) to emit light in both the front and rear directions. The inner shell (2) is provided with a light emitting device (4) that emits light along the light emission channels. The buffer surfaces (1h) of the upper convex bodies (1t) on the front and rear sides are provided with accommodation holes (3d). The accommodation holes (3d) on the front and rear sides are provided with adhesive layers (9). The accommodation holes (3d) are bonded to the retroreflector (3) through the adhesive layers (9) to form a small angle between the main direction of the retroreflected light and the buried reference plane. The invention relates to a lateral retroreflective structure with an angle of 30°, thereby forming a bidirectional reflective structure in front and back directions and a bidirectional luminous structure with LEDs respectively arranged in the front and back directions, wherein at least four fixing holes (1k) are arranged on the low area (1a) between the adjacent upper convex bodies (1t), or/and, the upper convex bodies (1t) on the left and right sides are provided with fixing holes (1k) (total of at least four), or the opening top cover (1A) is an annular edge ring structure, and the front and rear sides of the annular edge ring are respectively symmetrically provided with a buffer surface (1h) extending from the outer edge of the annular edge ring inward from the low The upper convex body (1t) is symmetrically provided on the left and right sides of the annular edge ring, and the upper convex bodies (1t) are arranged from low to high with the buffer surface (1h) inward from the outer edge thereof, and four low areas (1a) are arranged between the adjacent front, rear, left and right upper convex bodies (1t), and light exit channels for the light emitting device (4) to emit light in both directions are formed on the side of the exposed part of the inner shell (2) and the upper space of the left and right sides of the low areas (1a) of the front and rear upper convex bodies (1t) of the open top cover (1A), respectively. The inner shell (2) is provided with light exit channels along the light exit channels. A light-emitting device (4), wherein the buffer surfaces (1h) of the upper convex bodies (1t) on the front, rear, left and right sides are respectively provided with accommodating holes (3d), and the accommodating holes (3d) on the front, rear, left and right sides are respectively provided with bonding layers (9), and the accommodating holes (3d) are bonded to the retroreflective bodies (3) through the bonding layers (9) to form a lateral retroreflective structure in which the angle between the main direction of the retroreflected light and the buried reference plane is less than 30 degrees, thereby forming a bidirectional light-emitting structure that reflects light on the front, rear, left and right sides and is provided with LEDs in at least the front and rear bidirectional directions. , wherein the low area (1a) between the adjacent upper convex bodies (1t) is provided with fixing holes (1k) (not less than 4 in total), or the open top cover (1A) is an annular edge ring structure, and the front and rear sides of the annular edge ring are symmetrically provided with upper convex bodies (1t) extending from low to high with a buffer surface (1h) from the outer edge to the inside, and the left and right sides of the annular edge ring are symmetrically provided with upper convex bodies (1t) extending from low to high with a buffer surface (1h) from the outer edge to the inside, and 4 low areas (1a) are provided between the adjacent upper convex bodies (1t). ), and light emission channels for the light emitting device (4) to emit light in both the front and rear directions are formed in the upper spaces of the lower areas (1a) on the left and right sides of the front and rear upper convex bodies (1t) of the open top cover (1A) at the side of the exposed part of the inner shell (2), and the inner shell (2) is provided with a light emitting device (4) for emitting light along the light emission channels, and the buffer surfaces (1h) of the upper convex bodies (1t) on the front, rear, left and right sides are respectively provided with accommodation holes (3d), and the accommodation holes (3d) on the front and rear sides are respectively provided with adhesive layers (9), and the accommodation The hole groove (3d) is bonded to the retroreflector (3) through an adhesive layer (9) to form a lateral retroreflective structure in which the angle between the main direction of the retroreflected light and the buried reference plane is less than 30 degrees, and the left and right accommodating hole grooves (3d) are respectively provided with long afterglow luminous bodies (10), thereby forming a structure of front and rear bidirectional reflection, bidirectional lighting with LEDs at least provided in the front and rear bidirectional directions, and left and right long afterglow luminous structures, wherein fixing holes (1k) (not less than 4 in total) are provided on the low area (1a) between the adjacent upper convex bodies (1t), or The open top cover (1A) is an annular edge ring structure, and upper convex bodies (1t) are symmetrically provided on the left and right sides of the annular edge ring, extending from the outer edge of the annular edge ring inwardly with a buffer surface (1h) from low to high, so that two low areas (1a) are formed on the front and rear sides of the annular edge ring structure, and light emission channels for the light emitting device (4) to emit light in both directions are formed on the side of the exposed part of the inner shell (2) and the space above the low areas (1a) on the front and rear sides of the open top cover (1A), respectively. The inner shell (2) is provided with a light emitting device (4) that emits light along the above-mentioned light emission channel, and the buffer surfaces (1h) of the upper convex bodies (1t) on the left and right sides are arranged on the upper side of the inner shell (2) and the lower side (1a) on the front and rear sides of the open top cover (1A). 1h) are respectively provided with accommodating holes (3d), and adhesive layers (9) are respectively provided in the accommodating holes (3d). The accommodating holes (3d) are bonded and combined with the retroreflector (3) through the adhesive layer (9) to form a lateral retroreflective structure in which the angle between the main direction of the retroreflected light and the buried reference plane is less than 30 degrees, thereby forming a bidirectional light-emitting structure with left and right bidirectional reflection and LEDs respectively provided in at least the front and rear directions, wherein fixing holes (1k) are provided on the low areas (1a) on the front and rear sides of the opening top cover (1A), or/and fixing holes (1k) are provided on the upper convex bodies (1t) on the left and right sides.

Description of the drawings (the single dotted arrow line in the figure represents the direction of LED light emission, the double dotted arrow line represents the direction of retroreflected light, and the dotted line without an arrow represents the buried reference line)

FIG1 is a schematic diagram showing the cross-sectional structure principle of a road spike having a unit-type retroreflector on the opening top cover of a protective shell of an assembled structure of the present invention, wherein the outer diameter of the opening top cover is smaller than the inner diameter of the upper edge of the lower shell (overbite type).

FIG2 is a schematic diagram showing the cross-sectional structure of a road spike having a micro-bead array combined retro-reflective body on the opening top cover of the protective shell of the assembled structure of the present invention, wherein the outer diameter of the opening top cover is smaller than the inner diameter of the upper edge of the lower shell (overbite type).

FIG3 is a schematic diagram showing the cross-sectional structure of a road spike having a microbead array combined retroreflector on the opening top cover of the protective shell of the assembled structure of the present invention, wherein the outer diameter of the opening top cover is greater than or equal to the outer diameter of the upper edge of the lower shell (ceiling cover type).

FIG4 is a schematic diagram showing the cross-sectional structure principle of a road spike in which the outer diameter of the opening top cover of the protective shell of the assembled structure of the present invention is smaller than the inner diameter of the upper edge of the lower shell (overbite type), and a micro-prismatic retroreflector is provided on the opening top cover.

FIG5 is a schematic diagram of the cross-sectional structure of a road spike of the protective shell of the integrated structure of the present invention, on which a retroreflector is provided (a lens unit type retroreflector is used as an example, and other different types of retroreflector structures can refer to the retroreflector structures of 1-4).

FIG6 is a schematic diagram of the cross-sectional structure of a road spike of the protective shell of the integrated structure of the present invention, on which a retroreflector (a lens unit type retroreflector is taken as an example, and different types of retroreflector structures can refer to the retroreflector structures of 1-4) is provided, through its LED light source and fastening screw hole,

FIG7 is a schematic diagram of the cross-sectional structure principle of a road stud having a retroreflector (taking a microbead array combined retroreflector as an example, and different types of retroreflector structures can refer to the retroreflector structures of 1-4) on the inner shell of the present invention.

FIG8 is a schematic diagram of the three-dimensional cross-sectional structure of a road stud passing through the location of an LED light source and its optical structure principle and optical path principle,

FIG9 is a schematic diagram of a three-dimensional cross-sectional structure of a road stud passing through the location of an LED light source of the present invention,

FIG10 is a schematic diagram of a three-dimensional cross-sectional structure of a road stud passing through the location of an LED light source of the present invention,

FIG. 11 is a schematic diagram of the three-dimensional structure of the edge ring type opening top cover and its retroreflector according to the present invention,

FIG. 12 is a schematic diagram of the top structure of the edge ring type opening top cover and its retroreflector of the present invention,

FIG. 13 is a schematic diagram of the bottom structure of the edge ring type opening top cover of the present invention,

FIG. 14 is a schematic cross-sectional view of the structure of the edge ring type opening top cover and its retroreflector of the present invention,

FIG. 15 is a schematic diagram of the explosion and assembly structure of the edge ring type opening top cover and its retroreflector according to the first embodiment of the present invention,

FIG. 16 is a schematic diagram of the top structure of a road stud with partial perspective and its luminous and reflective properties according to the first embodiment of the present invention.

FIG. 17 is a schematic diagram of the three-dimensional structure of a road stud and its light-emitting and light-reflecting structure according to the first embodiment of the present invention.

FIG18 is a schematic diagram of the front (oncoming) structure of the road stud of Embodiment 1 of the present invention,

FIG. 19 is a schematic diagram of the spike explosion and its assembly structure of the first embodiment of the present invention.

FIG. 20 is a schematic diagram of the top structure of a road stud with partial perspective and its luminous and reflective properties according to the second embodiment of the present invention.

FIG21 is a schematic diagram of the three-dimensional structure of a road stud and its light-emitting and light-reflecting properties according to the second embodiment of the present invention.

FIG22 is a schematic diagram of the front structure of a road spike according to the second embodiment of the present invention.

FIG23 is a schematic diagram of the explosion and assembly structure of the spike of the second embodiment of the present invention.

FIG. 24 is a schematic diagram of the top structure of a road stud with partial perspective and its luminous and reflective properties according to the third embodiment of the present invention.

FIG25 is a schematic diagram of the three-dimensional structure of a road stud and its light-emitting and reflective structure according to the third embodiment of the present invention.

FIG26 is a schematic diagram of the front structure of a road stud according to the third embodiment of the present invention.

FIG27 is a schematic diagram of the explosion and assembly structure of a spike according to the third embodiment of the present invention.

FIG28 is a schematic diagram of the top structure of a road stud with partial perspective and its luminous and reflective properties according to the fourth embodiment of the present invention.

FIG29 is a schematic diagram of the three-dimensional structure of a road stud and its light-emitting and light-reflecting properties according to the fourth embodiment of the present invention.

FIG30 is a schematic diagram of the front structure of a road spike according to a fourth embodiment of the present invention.

FIG31 is a schematic diagram of the explosion and assembly structure of a spike according to a fourth embodiment of the present invention.

FIG32 is a schematic diagram of the top structure of a road stud with partial perspective and its luminous and reflective properties according to Embodiment 5 of the present invention.

FIG33 is a schematic diagram of the three-dimensional structure of a road stud and its light-emitting and light-reflecting structure according to the fifth embodiment of the present invention.

FIG34 is a schematic diagram of the front structure of a road spike according to Embodiment 5 of the present invention.

FIG35 is a schematic diagram of the explosion and assembly structure of a spike in Embodiment 5 of the present invention.

FIG36 is a schematic diagram of the top structure of a road stud with partial perspective and its luminous and reflective properties according to the sixth embodiment of the present invention.

FIG37 is a schematic diagram of the three-dimensional structure of a road stud and its light-emitting and light-reflecting properties according to the sixth embodiment of the present invention.

FIG38 is a schematic diagram of the front structure of a road spike according to a sixth embodiment of the present invention.

FIG39 is a schematic diagram of a three-dimensional cross-sectional structure of a road spike passing through a portion where a retroreflector is located according to a sixth embodiment of the present invention.

FIG40 is a schematic diagram of a three-dimensional cross-sectional structure of a road stud passing through the location of an LED light source according to a sixth embodiment of the present invention.

FIG41 is a schematic diagram of a three-dimensional cross-sectional structure of a road stud passing through the location of an LED light source according to a sixth embodiment of the present invention.

FIG42 is a schematic diagram of the three-dimensional structure of a rim-shaped opening top cover provided with an upper convex body with an accommodating hole groove according to the sixth embodiment of the present invention,

FIG43 is a schematic diagram of the explosion and assembly structure of a spike according to a sixth embodiment of the present invention.

FIG44 is a schematic diagram of the three-dimensional structure of the lower shell of the sixth embodiment of the present invention, wherein the upper edge thereof is provided with an outer convex body extending horizontally outward.

FIG45 is a schematic diagram of a three-dimensional structure of a road spike having an outer convex body extending horizontally outward at the upper edge of the lower shell and its light-emitting and reflective structure according to the sixth embodiment of the present invention.

FIG46 is a schematic diagram of the top structure of a road stud with partial perspective and its luminous and reflective properties according to the seventh embodiment of the present invention.

FIG47 is a schematic diagram of the three-dimensional structure of a road stud and its light-emitting and light-reflecting properties according to the seventh embodiment of the present invention.

FIG48 is a schematic diagram of the front structure of a road spike according to Embodiment 7 of the present invention.

FIG49 is a schematic diagram of the explosion and assembly structure of the spike of the seventh embodiment of the present invention.

FIG50 is a schematic diagram of the top structure of a road stud with partial perspective and its luminous and reflective properties according to the eighth embodiment of the present invention.

FIG51 is a schematic diagram of the three-dimensional structure of a road stud and its light-emitting and light-reflecting properties according to the eighth embodiment of the present invention.

FIG52 is a schematic diagram of the front structure of a road spike according to Embodiment 8 of the present invention.

FIG53 is a schematic diagram of a cross-sectional structure of a road spike through its LED light emitter and fastening screw hole according to the eighth embodiment of the present invention.

FIG. 54 is a schematic diagram of the spike explosion and its assembly structure according to the eighth embodiment of the present invention.

DETAILED DESCRIPTION

Embodiments of the present invention are described with reference to the accompanying drawings.

Example

A buried solar-powered reflective road stud comprises a protective shell (110), an inner shell (120), a retroreflector (130), a light-emitting device (140), a photovoltaic device (150), electronic circuit components (160), a packaging glue cured molded body (170), a fastening screw (180), and an adhesive layer (190), as shown in FIGS. 11-19.

The protective shell (110) comprises an open top cover (110A) and a lower shell (110B).

The opening top cover (110A) is a die-cast annular aluminum alloy or stainless steel ring cover with an outer diameter of 100 mm to 160 mm, a generally circular outer edge, and an octagonal upper opening (110r) in the center that opens upward, as shown in FIGS. 11-15 .

The front and rear sides (front and rear ends) of the annular edge ring are symmetrically provided with two upper convex bodies (110t) which transition from low to high with a buffer surface (110h) from the outer edge to the inside, serving as a protective block structure. The height of the top surface of the upper convex body (110t) relative to the buried reference surface [corresponding to the upper edge of the lower shell (110B) after assembly] is about 9 mm, and a cylindrical hole-type accommodating hole groove (130d) is respectively provided thereon, with the hole groove direction facing the front and rear vehicle facing surfaces, and the hole groove opening facing the inclination angle θ1=5°～25° and opening downwardly obliquely. The hole-type accommodating hole groove (130d) 0d) are respectively injected with an appropriate amount of liquid adhesive (epoxy structural adhesive or polyurethane structural adhesive), and then a double spherical cylindrical glass lens unit (similar to a cat's eye bead) with a diameter of about 9 mm and a length of about 10 mm is embedded to serve as a retroreflector (130), wherein the retroreflected light of the retroreflector has a single-side range angle θ4=12° to 25°, and after the adhesive is cured, an adhesive layer (190) is formed to fix the retroreflector (130) and the receiving hole groove (130d) to form a structure, thereby forming a retroreflective structure with an angle θ3=5° to 25° between the main direction of retroreflection and the buried reference plane on the front and rear sides,

The left and right sides of the annular edge ring are symmetrically provided with two upper convex bodies (110t) which transition from low to high with a buffer surface (110h) from the outer edge to the inside, serving as a protective block structure. The front and rear sides facing outward are respectively provided with a cylindrical receiving hole groove (130d) with the hole groove direction facing the front and rear vehicle faces and the hole groove opening facing the inclination angle θ1=5°～20°. The receiving hole groove (130d) is respectively injected with an appropriate amount of liquid adhesive (epoxy structural adhesive or polyurethane structural adhesive). The adhesive is then embedded in a double spherical cylindrical glass lens unit with a diameter of about 9 mm and a length of about 10 mm to serve as a retroreflector (130). The retroreflector has a single-side range angle θ4 of 12° to 25°. After the adhesive is cured, a bonding layer (190) is formed to fix the retroreflector (130) and the receiving hole groove (130d) to form a structure, thereby forming a retroreflector structure with an angle θ3 of 5° to 20° between the main direction of retroreflection and the buried reference plane on the front and rear sides.

Thus, the four forward-facing double-spherical cylindrical glass lens units form two rows each at the front and rear positions, and the four backward-facing double-spherical cylindrical glass lens units form two rows each at the front and rear positions, and the brightness superposition effect of the retroreflectors arranged at multiple points can be used to improve the retroreflection efficiency.

A relatively low area (110a) is provided between the adjacent front, rear, left and right upper convex bodies (110t), and a through-type fixing hole (110k) is provided on the relatively low area (110a) and the left and right upper convex bodies (110t), and a downwardly convex cylindrical fixing hole pile head (110A-z) is provided below the through-type fixing hole (110k).

The lower shell (110B) is a cast aluminum protective bottom shell with an upwardly opening accommodating cavity (110q), which is larger at the top and smaller at the bottom. The upper edge of the lower shell has a circular ring with an outer diameter of 110 mm to 160 mm, a thickness of 3.5 mm to 5 mm, and an outer height of 10 mm to 15 mm. The upper edge of the ring is connected to the side wall of the lower cavity shell by a stepped inner ring. The stepped inner ring is 5 mm to 10 mm wide. The outer contour of the lower cavity shell of the lower shell (110B) is similar to a wave ring when viewed from above. The lower shell (110B) The fixing hole pile heads (110A-z) corresponding to the opening top cover (110A) on the side walls of the lower cavity shell (110B) are respectively provided with fixing hole pile positions (110B-w) for accommodating the fixing hole pile heads (110A-z), and fixing hole pile columns (110B-z) for supporting the fixing hole pile heads (110A-z) are provided below the fixing hole pile positions (110B-w). The outer side wall of the lower shell (110B) is provided with vertical ribs (110j), which can improve the structural strength of the shell and the firmness of installation.

The inner shell (120) is a transparent PC injection molded inner shell with a accommodating cavity opening downwards. The central part of the top of the inner shell (120) has a generally cross-shaped raised main structure in a top-down view, which serves as a light-emitting part and a lighting part. The inner shell (120) has a relatively (cross-shaped top) lower pressing part (120t) around the cross-shaped top that forms a step-shaped structure with the cross-shaped top, thereby forming an inner shell with a step-shaped structure that is smaller at the top and larger at the bottom. The top of the cross-shaped top has anti-slip convex particles. A solar photovoltaic panel serving as a photovoltaic device (150) is fixed below the center of the cross-shaped top through a card slot and a light-transmitting adhesive. The front side wall (120e) of the cross-shaped top and the rear side wall (120e) facing backwards are respectively sloped and face the relatively lower low position (110a) between the upper convex bodies (110t) of the front and rear sides. The left and right side parts of the cross-shaped top face forward and backward. The side walls (120e) are respectively inclined and face the relatively low position (110a) between the upper convex bodies (110t) on the front and rear sides and the upper convex bodies (110t) on the left and right sides. The inner top walls of the front, rear, left and right sides of the cross-shaped top are provided with V-shaped grooves, and a light board with straw hat lamp beads (with focusing lenses) welded on both sides facing forward and backward is fixed thereto by means of a slot and adhesive, serving as a light-emitting device (140). Thus, light emission channels for the light-emitting device (140) to emit light in both the front and rear directions are formed above the relatively low position (110a) facing the inner shell (120), and above the relatively low position (110a) facing the inner shell (120). The light-emitting device (140) has a front and rear bidirectional light-emitting indication function. Furthermore, upward-facing LEDs can be welded on the light boards on the left and right sides, thereby having an upward light-emitting indication function.

The electronic circuit components (160) include a storage battery, a drive and control circuit, etc., which are connected to the light-emitting device (140) and the photovoltaic device (150) circuits and are sealed in the accommodating cavity of the inner shell (120) through a white two-component epoxy resin encapsulation glue curing molding (170) to form a waterproof packaging structure with preliminary pressure resistance and impact resistance.

A rubber gasket is placed on the bottom surface of the receiving cavity (110q) of the lower shell (110B), the waterproof package inner shell structure is embedded in the receiving cavity (110q) of the lower shell (110B), the opening top cover (110A) is pressed into position on the opening of the lower shell (110B), the fastening screw (180) is screwed on, and silicone glue is dripped on the fastening screw (180) and cured to seal it as a plug, thereby securing the waterproof package. The inner shell structure is locked in the protective shell (110), wherein a portion of the bottom surface of the open top cover (110A) is pressed onto the stepped inner ring of the lower shell (110B), and a portion is pressed onto the pressing portion (120t) of the inner shell (120), and a fixing hole pile head (110A-z) of the open top cover (110A) is pressed onto a fixing hole pile position (110B-z) above the fixing hole pile column (110B-z) of the lower shell (110B). w) Inner, the ring portion of the upper edge of the lower shell (110B) surrounds the outer edge of the annular edge ring of the opening top cover (110A), and the inner side surface or inner side wall of the upper convex body (110t) close to the upper opening of the accommodating cavity (110q) and the outer side surface or outer side wall of the top of the inner shell (120) form a combined structure in which the upper convex body (110t) acts as a protective block structure in a tolerance matching manner. Since the opening top cover (110A) and the upper convex body (110t) thereon are made of metal material, and the inner shell (120) is made of PC plastic material, the strength of the opening top cover (110A) is greater than the strength of the inner shell (120) and also greater than the strength of the retroreflector (130), so the opening top cover (110A) and the upper convex body (110t) thereon can form a reinforced structure for protecting the inner shell (120) and the retroreflector (130), and can resist being crushed by wheels or knocked by foreign objects on the road surface.

The buried solar-powered reflective road stud of the present invention is installed by first drilling a hole in the road surface, then embedding the road stud in the hole and fixing it in place with structural adhesive, so that the outer upper edge of the edge ring of the opening top cover (110A) is roughly flush with the installation and embedding reference surface of the road surface; when in operation, the straw hat lamp bead can emit light in both the front and rear directions through the side wall of the inner shell (120) and the upper side of the relatively low lower area (110a) directly facing it, and the double spherical cylindrical glass lens unit can reflect the light of the external vehicle light from both the front and rear sides.

The buried solar luminous reflective road stud of the present invention has the front and rear bidirectional LED luminous function under the premise of ensuring waterproof, high pressure resistance and high impact resistance, and can also provide front and rear bidirectional reflective indication for motor vehicle drivers or pedestrians by reflecting vehicle lights through a retroreflector. In particular, when the buried luminous road stud is insufficient in power and cannot emit light normally, it can also provide reflective indication through the retroreflector, and its reflective angle and reflective performance can achieve actual use effects. Its pressure resistance can reach more than 100kN, its reflective sight distance can reach more than 100m, and its luminous sight distance can reach more than 500m. It can be used for expressways or high-grade highways with many overloaded and heavy-loaded vehicles, and can also be used on ordinary roads or urban roads. It can also be connected with a wireless module (which can have a signal receiving and/or transmitting function), or with an intelligent control module (which can have a data processing function), or with a sensor through electronic circuit components to achieve the purpose of intelligent control or multi-mode luminous, and can better adapt to the trend of intelligent development of traffic.

Example

A buried solar-powered reflective road stud comprises a protective shell (210), an inner shell (220), a retroreflector (230), a light-emitting device (240), a photovoltaic device (250), electronic circuit components (260), a packaging glue cured molded body (270), fastening screws (280), and an adhesive layer (290), as shown in FIGS. 20-23.

The protective shell (210) comprises an opening top cover (210A) and a lower shell (210B).

The opening top cover (210A) is a die-cast annular aluminum alloy or stainless steel ring cover with an outer diameter of 100 mm to 150 mm, a generally circular outer edge, and an octagonal upper opening (210r) in the center that opens upward.

The front and rear sides of the annular edge ring are symmetrically provided with an upper convex body (210t) that transitions from low to high with a buffer surface (210h) from its outer edge to the inside, and a strip-shaped receiving hole groove (230d) with a hole groove opening facing an inclination angle of θ1=35°～60° is provided on the upper convex body (210t), and a proper amount of liquid adhesive (epoxy structural adhesive or polyurethane structural adhesive) is injected into the receiving hole groove (230d), and then a bottom strip with a corresponding shape and set at a deflection angle of θ2=15°～35° is embedded. An injection-molded reflective sheet having a reflective bottom layer and a plurality of small glass lens reflective beads arranged in an orderly array combination structure serves as a retroreflector (230). The retroreflective light of the retroreflector has a single-side range angle θ4 of 15° to 25°. After the adhesive is cured, an adhesive layer (290) is formed to fix the retroreflector (230) and the receiving hole groove (230d) to form a structure, thereby forming a retroreflective structure with an angle θ3 of 5° to 30° between the main direction of retroreflection and the buried reference plane on the front and rear sides.

The left and right sides of the annular edge ring are symmetrically provided with an upper convex body (210t) transitioning from low to high with a buffer surface (210h) from its outer edge to the inside, respectively, and the upper convex body (210t) with a hole opening facing an inclination angle θ1=40°~60° is respectively provided thereon, and a strip-shaped receiving hole groove (230d) is respectively provided thereon, and an appropriate amount of liquid adhesive (epoxy structural adhesive or polyurethane structural adhesive) is respectively injected into the receiving hole groove (230d), and then a micro-prism array injection-molded structure reflective sheet of a corresponding shape with a deflection angle θ2=20°~30° and a bottom electroplated or evaporated reflective layer is embedded to serve as a retroreflector (230), and the adhesive is cured to form a bonding layer (290), and the retroreflector (230) is fixed to the receiving hole groove (230d), and the single-side range angle of the retroreflected light of the above-mentioned retroreflector is θ4=15° ～25°, thereby forming a retroreflective structure with an angle θ3 of 10°～25° between the main direction of retroreflection and the buried reference plane on the left and right sides; the microprism array injection molded structure reflective sheet can also be composited to the bottom plate of the accommodating hole groove (230d) through an ultrasonic heat-sealing process and an air layer can be left between the two to form a retroreflective structure of a microprism type structure with an air layer at the bottom to serve as the retroreflector (230); the microprism reflective sheet with a reflective optical structure with a large incident angle range or/and a large observation angle range can also be cut and formed, and then fixed in the accommodating hole groove (230d) by adhesive bonding to serve as the retroreflector (230); or a glass microbead (random plant) type pre-formed reflective marking tape can be cut and formed, and then fixed in the accommodating hole groove (230d) by adhesive bonding to serve as the retroreflector (230).

A relatively low area (210a) is provided between the adjacent front, rear, left and right upper convex bodies (210t), and a through-type fixing hole (210k) is provided on the relatively low area (210a). Furthermore, through-type fixing holes (210k) are provided on the upper convex bodies (210t) on the left and right sides, and fastening screws are provided in the through-type fixing holes (210k). The retroreflective body (230) is provided in the receiving hole groove (230d) above the fastening screw. A downwardly convex cylindrical fixing hole pile head (210A-z) is provided below the through-type fixing hole (210k).

The lower shell (210B) is a cast aluminum protective bottom shell with an upwardly opening accommodating cavity (210q), which is larger at the top and smaller at the bottom. The upper edge of the lower shell has a circular ring with an outer diameter of 110 mm to 160 mm, a thickness of 4 mm to 8 mm, and an outer height of 10 mm to 15 mm. The upper edge of the ring is connected to the side wall of the lower cavity shell by a stepped inner ring. The width of the stepped inner ring is 5 mm to 12 mm. The outer contour of the lower cavity shell of the lower shell (210B) is similar to a wave ring when viewed from above. The lower shell (210B) is 10B) The side walls of the lower cavity shell corresponding to the fixing hole pile heads (210A-z) of the opening top cover (210A) are respectively provided with fixing hole pile positions (210B-w) for accommodating the fixing hole pile heads (210A-z), and fixing hole pile columns (210B-z) for supporting the fixing hole pile heads (210A-z) are provided below the fixing hole pile positions (210B-w). The outer side wall of the lower shell (210B) is provided with vertical ribs (210j), which can improve the structural strength of the shell and the firmness of installation.

The inner shell (220) is a transparent PC injection molded inner shell with a accommodating cavity opening downward. The central part of the top of the inner shell (220) has a generally cross-shaped raised main structure in a top-down view, which serves as a light-emitting part and a lighting part. The inner shell (220) has a relatively (cross-shaped top) lower pressing part (220t) around the cross-shaped top, which forms a step-shaped structure with the cross-shaped top, thereby forming an inner shell with a step-shaped structure that is smaller at the top and larger at the bottom. The top of the cross-shaped top has anti-slip convex particles. A solar photovoltaic panel serving as a photovoltaic device (250) is fixed below the center of the cross-shaped top through a slot and a light-transmitting adhesive. The left and right side walls (220e) of the cross-shaped top face forward and backward, and the front and rear side walls (220e) of the left and right side walls face left and right. The right-facing side wall (220e) is respectively inclined in a manner to face the relatively low lower area (210a) between the upper convex bodies (210t) of the front and rear side parts and the upper convex bodies (210t) of the left and right side parts. The inner top walls of the front, rear, left and right side parts of the cross-shaped top are provided with V-shaped grooves, and a light board with straw hat lamp beads welded on both sides and an upward-facing patch LED welded in the center is fixed thereunder by means of a slot and adhesive to serve as a light-emitting device (240), thereby forming a light emission channel for the light-emitting device (240) to emit light in four directions, front, back, left and right, on the front, rear, left and right side parts of the inner shell (220) and above the relatively low lower area (210a) facing the inner shell (220), and having a light-emitting indication function in four directions, front, back, left and right and upward.

The electronic circuit components (260) include a storage battery, a drive and control circuit, etc., which are connected to the light-emitting device (240) and the photovoltaic device (250) circuits and are sealed in the accommodating cavity of the inner shell (220) through a white two-component epoxy resin encapsulation glue curing molding (270) to form a waterproof packaging structure with preliminary pressure resistance and impact resistance capabilities.

A rubber gasket is placed on the bottom surface of the receiving cavity (210q) of the lower shell (210B), the waterproof package inner shell structure is embedded in the receiving cavity (210q) of the lower shell (210B), the opening top cover (210A) is pressed into position on the opening of the lower shell (210B), the fastening screw (280) is screwed on, and silicone glue is dripped on the fastening screw (280) and cured to seal and act as a plug, thereby sealing the waterproof package. The inner shell structure is locked in the protective shell (210), wherein a portion of the bottom surface of the open top cover (210A) is pressed onto the stepped inner ring of the lower shell (210B), and a portion is pressed onto the pressing portion (220t) of the inner shell (220), and a fixing hole pile head (210A-z) of the open top cover (210A) is pressed onto a fixing hole pile position (210B-z) above the fixing hole pile column (210B-z) of the lower shell (210B). w) Inner, the ring portion of the upper edge of the lower shell (210B) surrounds the outer edge of the annular edge ring of the opening top cover (210A), and the inner side surface or inner side wall of the upper convex body (210t) close to the upper opening of the accommodating cavity (210q) and the outer side surface or outer side wall of the top of the inner shell (220) form a combined structure in which the upper convex body (210t) acts as a protective block structure in a tolerance matching manner. Since the opening top cover (210A) and the upper convex body (210t) thereon are made of metal material, and the inner shell (220) is made of PC plastic material, the strength of the opening top cover (210A) is greater than the strength of the inner shell (220) and also greater than the strength of the retroreflector (230), so the opening top cover (210A) and the upper convex body (210t) thereon can form a reinforced structure for protecting the inner shell (220) and the retroreflector (230), and can resist wheel rolling or collision with foreign objects on the road surface.

The buried solar-powered luminous reflective road stud of the present invention, when installed, firstly drills a hole in the road surface, then embeds the road stud in the drilled hole and fixes it in the hole by means of structural adhesive, and the outer upper edge of the edge ring of the opening top cover (210A) is roughly flush with the installation and embedding reference surface of the road surface; when working, the straw hat lamp bead can emit light in both directions forward and backward through the side wall of the inner shell (220) and the upper part of the relatively low lower area (210a) directly facing it, and the injection-molded reflective sheet composed of a plurality of small lens units with a reflective bottom layer arranged in an orderly manner in an array combination structure can reflect the light of external vehicles and reflect light in both directions forward and backward in a main direction of retroreflection at a horizontal angle of 5° to 30° upward, and the micro-prism array injection-molded structure reflective sheet with a reflective layer coated on the bottom can reflect the light of external vehicles and reflect light in both directions left and right in a main direction of retroreflection at a horizontal angle of 10° to 25° upward.

The underground solar luminous reflective road stud of the present invention has the four-directional LED lighting function of front, back, left, and right under the premise of ensuring waterproof, high pressure resistance and high impact resistance, and can also provide four-directional reflective indication for motor vehicle drivers or pedestrians by reflecting vehicle lights through a retroreflector. It is suitable for road intersections, can realize multi-mode lighting and intelligent control, and can provide reflective indication through a retroreflector when the underground luminous road stud is insufficient in power and cannot emit light normally, and its reflective angle and reflective performance can achieve actual use effects.

Example

A buried solar-powered reflective road stud comprises a protective shell (310), an inner shell (320), a retroreflector (330), a light-emitting device (340), a photovoltaic device (350), electronic circuit components (360), a packaging glue-cured molded body (370), fastening screws (380), and an adhesive layer (390), as shown in FIGS. 24-27.

The protective shell (310) comprises an opening top cover (310A) and a lower shell (310B).

The opening top cover (310A) is a die-cast annular aluminum alloy or annular stainless steel ring cover with an outer diameter of 105 mm to 155 mm, a generally circular outer edge, and an octagonal upper opening (310r) in the center. The front and rear sides of the annular edge ring are symmetrically provided with an upper convex body (310t) that transitions from low to high with a buffer surface (310h) from its outer edge to the inside, and two cylindrical hole-type holes are provided on the upper convex body, with the opening groove facing the front and rear vehicle surfaces and the opening of the hole groove facing the inclination angle θ1 = 5° to 15°. An accommodating hole groove (330d) is provided. An appropriate amount of liquid adhesive (epoxy structural adhesive or polyurethane structural adhesive) is injected into the hole-type accommodating hole groove (330d), and then a double spherical cylindrical glass lens unit is embedded to serve as a retroreflector (330). The retroreflective light of the retroreflector has a single-side range angle θ4 of 10° to 20°. After the adhesive is cured, a bonding layer (390) is formed to fix the retroreflector (330) and the accommodating hole groove (330d) to form a structure, thereby forming a retroreflective structure with an angle θ3 of 5° to 15° between the main direction of retroreflection and the buried reference plane on the front and rear sides.

The left and right sides of the annular edge ring are symmetrically provided with an upper convex body (310t) that transitions from low to high with a buffer surface (310h) from its outer edge inward, and two cylindrical hole-type accommodating hole grooves (330d) are respectively provided thereon, with the opening direction of the hole groove facing the left and right oncoming vehicle surfaces and the hole groove opening facing the inclination angle θ1=5°～25° and opening downwardly obliquely. An appropriate amount of liquid adhesive (epoxy structural adhesive or polyurethane structural adhesive) is respectively injected into the hole-type accommodating hole grooves (330d), and then a double spherical cylindrical glass lens unit is embedded to serve as a retroreflector (330). The retroreflector has a single-side range angle θ4=15°～25°. After the adhesive is cured, an adhesive layer (390) is formed, and the retroreflector (330) and the accommodating hole groove (330d) are structurally fixed, thereby forming a retroreflective structure on the left and right sides, with the included angle θ3=5°～25° between the main direction of retroreflection and the buried reference surface.

A relatively low area (310a) is provided between the adjacent front, rear, left and right upper convex bodies (310t), and a through-type fixing hole (310k) is provided on the relatively low area (310a) and the left and right upper convex bodies (310t), and a downwardly convex cylindrical fixing hole pile head (310A-z) is provided below the through-type fixing hole (310k).

The lower shell (310B) is a cast aluminum protective bottom shell with an upwardly opening accommodating cavity (310q), which is larger at the top and smaller at the bottom. The upper edge of the lower shell has a circular ring with an outer diameter of 110 mm to 160 mm, a thickness of 3.5 mm to 7 mm, and an outer height of 9 mm to 14.5 mm. The upper edge of the ring is connected to the side wall of the lower cavity shell by a stepped inner ring. The stepped inner ring is 7.2 mm wide. The outer contour of the lower cavity shell of the lower shell (310B) is similar to a wave ring when viewed from above. The lower shell (310B) is 10B) The side walls of the lower cavity shell corresponding to the fixing hole pile heads (310A-z) of the opening top cover (310A) are respectively provided with fixing hole pile positions (310B-w) for accommodating the fixing hole pile heads (310A-z), and fixing hole pile columns (310B-z) for supporting the fixing hole pile heads (310A-z) are provided below the fixing hole pile positions (310B-w). The outer side wall of the lower shell (310B) is provided with vertical ribs (310j), which can improve the structural strength of the shell and the firmness of installation.

The inner shell (320) is a transparent PC injection molded inner shell with a accommodating cavity opening downward. The central part of the top of the inner shell (320) has a generally cross-shaped raised main structure in a top-down view, which serves as a light-emitting part and a lighting part. The inner shell (320) has a relatively (cross-shaped top) lower pressing part (320t) around the cross-shaped top, which forms a step-shaped structure with the cross-shaped top, thereby forming an inner shell with a step-shaped structure that is smaller at the top and larger at the bottom. The top of the cross-shaped top has anti-slip convex particles. A solar photovoltaic panel is fixed below the center of the cross-shaped top through a slot and a light-transmitting adhesive, which serves as a photovoltaic device (350). The left and right side walls of the cross-shaped top facing forward and backward (3 20e) are respectively inclined in a manner to face the upper convex bodies (310t) on the front and rear sides and the relatively low lower area (310a) between the upper convex bodies (310t) on the left and right sides, and the inner top walls of the left and right sides of the cross-shaped top are provided with V-shaped grooves, and a light board with straw hat lamp beads welded on both sides facing forward and backward and a patch LED welded in the center facing upward is fixed thereunder by means of a slot and adhesive, serving as a light emitting device (340), thereby forming a light emitting channel for the light emitting device (340) to emit light in both directions forward and backward on the left and right sides of the inner shell (320) and above the relatively low lower area (310a) facing therefrom, and having a light emitting indication function of both directions forward and backward and upward,

The electronic circuit components (360) include batteries, drive and control circuits, etc., which are connected to the light-emitting device (340) and the photovoltaic device (350) circuits and are sealed in the accommodating cavity of the inner shell (320) through a white two-component epoxy resin encapsulation glue curing molded body (370) to form a waterproof packaging structure with preliminary pressure and impact resistance capabilities.

A rubber gasket is placed on the bottom surface of the receiving cavity (310q) of the lower shell (310B), the waterproof package inner shell structure is embedded in the receiving cavity (310q) of the lower shell (310B), the opening top cover (310A) is pressed into position on the opening of the lower shell (310B), the fastening screw (380) is screwed on, and silicone glue is dripped on the fastening screw (380) and cured to seal it as a plug, thereby securing the waterproof package. The inner shell structure is locked in the protective shell (310), wherein a portion of the bottom surface of the open top cover (310A) is pressed onto the stepped inner ring of the lower shell (310B), and a portion is pressed onto the pressing portion (320t) of the inner shell (320), and a fixing hole pile head (310A-z) of the open top cover (310A) is pressed onto a fixing hole pile position (310B-z) above the fixing hole pile column (310B-z) of the lower shell (310B). w) Inner, the ring portion of the upper edge of the lower shell (310B) surrounds the outer edge of the annular edge ring of the opening top cover (310A), and the inner side surface or inner side wall of the upper convex body (310t) close to the upper opening of the accommodating cavity (310q) and the outer side surface or outer side wall of the top of the inner shell (320) form a combined structure in which the upper convex body (310t) acts as a protective block structure in a tolerance matching manner. Since the opening top cover (310A) and the upper convex body (310t) thereon are made of metal material, and the inner shell (320) is made of PC plastic material, the strength of the opening top cover (310A) is greater than the strength of the inner shell (320) and also greater than the strength of the retroreflector (330), so the opening top cover (310A) and the upper convex body (310t) thereon can form a reinforced structure for protecting the inner shell (320) and the retroreflector (330), and can resist being crushed by wheels or knocked by foreign objects on the road surface.

The buried solar-powered reflective road stud of the present invention is installed by first drilling a hole in the road surface, then embedding the road stud in the hole and fixing it in place with structural adhesive, so that the outer upper edge of the edge ring of the opening top cover (310A) is roughly flush with the installation and embedding reference surface of the road surface; when in operation, the straw hat lamp bead can emit light in both the front and rear directions through the side wall of the inner shell (320) and the upper side of the relatively low lower area (310a) directly facing it, and the double spherical cylindrical glass lens unit can reflect the light of the external vehicle headlights in all directions.

The underground solar luminous reflective road stud of the present invention has the front and rear bidirectional LED lighting function under the premise of ensuring waterproof, high pressure resistance and high impact resistance, and can also provide four-way reflective indication for motor vehicle drivers or pedestrians in front, back, left and right directions by reflecting the car light through the retroreflector. In particular, when the underground luminous road stud is insufficient in power and cannot emit light normally, the retroreflector can also provide reflective indication, and its reflective angle and reflective performance can achieve practical use effects.

Example

A buried solar-powered luminous reflective road stud comprises a protective shell (410), an inner shell (420), a retroreflector (430), a light-emitting device (440), a photovoltaic device (450), electronic circuit components (460), a packaging glue-cured molded body (470), a fastening screw (480), a long afterglow luminous body (4100), and an adhesive layer (490), as shown in FIGS. 28-31.

The protective shell (410) comprises an opening top cover (410A) and a lower shell (410B).

The opening top cover (410A) is a die-cast annular aluminum alloy or stainless steel ring cover with an outer diameter of 130 mm, a generally circular outer edge, and an upper opening (410r) in the center that is open upward and similar to a wide cross.

The front and rear sides of the annular edge ring are symmetrically provided with an upper convex body (410t) that transitions from low to high with a buffer surface (410h) from its outer edge to the inside, and a strip-shaped receiving hole groove (430d) with a hole groove opening facing an inclination angle of θ1=35°～55° is provided on the upper convex body (410t), and a proper amount of liquid adhesive (epoxy structural adhesive or polyurethane structural adhesive) is injected into the receiving hole groove (430d), and then a micro-prism array injection-molded structure reflective sheet of a corresponding shape with a bottom electroplated or evaporated reflective layer with a deflection angle of θ2=15°～35° is embedded to serve as a retroreflector (430). The retroreflector The single-side range angle θ4 of the retroreflected light of the body is 12° to 25°, and the adhesive is cured to form an adhesive layer (490), and the retroreflector (430) and the accommodating hole groove (430d) are structurally fixed, thereby forming a retroreflective structure with an angle θ3 of 10° to 20° between the main direction of retroreflection and the buried reference plane on the left and right sides. The micro-prism array injection-molded structure reflective sheet can also be composited to the bottom plate of the accommodating hole groove (430d) through an ultrasonic heat-sealing process, and an air layer is left between the two to form a micro-prism type structure with an air layer at the bottom to serve as the retroreflector (430).

The left and right sides of the annular edge ring are symmetrically provided with an upper convex body (410t) transitioning from low to high with a buffer surface (410h) from its outer edge inward, and a strip-shaped receiving hole groove (430d) with a hole groove opening facing an inclination angle θ1=35°~50° is provided on the upper convex body (410t), and the receiving hole groove (430d) is respectively fixed with a pre-formed long afterglow luminous sheet of a corresponding shape by adhesive bonding to serve as a long afterglow luminous body (4100), so that the left and right sides have a long afterglow luminous function,

A relatively low area (410a) is provided between the adjacent front, rear, left, and right upper convex bodies (410t), and a through-type fixing hole (410k) is provided on each of the relatively low areas (410a). A downwardly convex cylindrical fixing hole pile head (410A-z) is provided below the through-type fixing hole (410k).

The lower shell (410B) is a cast aluminum protective bottom shell with an upwardly opening accommodating cavity (410q), which is larger at the top and smaller at the bottom. The upper edge of the lower shell has a circular ring with an outer diameter of 144 mm, a thickness of 4 mm, and an outer height of 13 mm. The upper edge of the ring is connected to the side wall of the lower cavity shell by a stepped inner ring. The stepped inner ring is 7 mm wide. The outer contour of the lower cavity shell of the lower shell (410B) is similar to a wave ring when viewed from above. The side of the lower cavity shell of the lower shell (410B) is The fixing hole pile heads (410A-z) corresponding to the opening top cover (410A) on the wall are respectively provided with fixing hole pile positions (410B-w) for accommodating the fixing hole pile heads (410A-z), and fixing hole pile columns (410B-z) for supporting the fixing hole pile heads (410A-z) are provided below the fixing hole pile positions (410B-w). The outer side wall of the lower shell (410B) is provided with vertical ribs (410j), which can improve the structural strength of the shell and the firmness of installation.

The inner shell (420) is a transparent PC injection molded inner shell with a accommodating cavity opening downwards. The central part of the top of the inner shell (420) has a generally cross-shaped raised main structure corresponding to the cross-shaped upper opening (410r) of the open top cover (410A) in a top-down view, which serves as a light-emitting part and a lighting part. The inner shell (420) has a relatively (cross-shaped top) lower pressing part (420t) around the cross-shaped top that forms a step-shaped structure with the cross-shaped top, thereby forming an inner shell with a step-shaped structure that is smaller at the top and larger at the bottom. The top of the cross-shaped top has anti-slip convex particles. A solar photovoltaic panel is fixed below the center of the cross-shaped top through a slot and a light-transmitting adhesive to serve as a photovoltaic device (450). The left and right side walls (420e) of the cross-shaped top are sloped toward the front and rear, respectively. A relatively low area (410a) is formed between the upper convex body (410t) directly facing the front and rear side parts and the upper convex bodies (410t) on the left and right side parts, and a V-shaped groove is provided on the inner top wall of the left and right side parts of the cross-shaped top, and a light board with straw hat lamp beads welded on both sides and a patch LED welded upward in the center is fixed thereunder through a slot and adhesive to serve as a light-emitting device (440), and a light board with a patch LED welded upward is fixed thereunder through a slot and adhesive to serve as a light-emitting device (440), so that a light emission channel for the light-emitting device (440) to emit light in both directions is formed on the left and right side parts of the inner shell (420) and above the relatively low area (410a) directly facing therefrom, and has a front and rear bidirectional and upward LED light-emitting indication function,

The electronic circuit components (460) include batteries, drive and control circuits, which are connected to the light-emitting device (440) and the photovoltaic device (450) circuits and are sealed in the accommodating cavity of the inner shell (420) through a white two-component epoxy resin encapsulation glue curing molding (470) to form a waterproof packaging structure with preliminary pressure and impact resistance capabilities.

A rubber gasket is placed on the bottom surface of the receiving cavity (410q) of the lower shell (410B), the waterproof package inner shell structure is embedded in the receiving cavity (410q) of the lower shell (410B), the opening top cover (410A) is pressed into position on the opening of the lower shell (410B), the fastening screw (480) is screwed on, and silicone glue is dripped on the fastening screw (480) and cured to seal it as a plug, thereby securing the waterproof package. The inner shell structure is locked in the protective shell (410), wherein a portion of the bottom surface of the open top cover (410A) is pressed onto the stepped inner ring of the lower shell (410B), and a portion is pressed onto the pressing portion (420t) of the inner shell (420), and a fixing hole pile head (410A-z) of the open top cover (410A) is pressed onto a fixing hole pile position (410B-z) above the fixing hole pile column (410B-z) of the lower shell (410B). w), the ring portion of the upper edge of the lower shell (410B) surrounds the outer edge of the annular edge ring of the opening top cover (410A), and the inner side surface or inner side wall of the upper convex body (410t) close to the upper opening of the accommodating cavity (410q) and the top outer side surface or outer side wall of the inner shell (420) form a combined structure in which the upper convex body (410t) acts as a protective block structure in a tolerance matching manner. Since the opening top cover (410A) and the upper convex body (410t) thereon are made of metal, and the inner shell (420) is made of PC plastic, the strength of the opening top cover (410A) is greater than the strength of the inner shell (420) and also greater than the strength of the retroreflector (430), so the opening top cover (410A) and the upper convex body (410t) thereon can form a reinforced structure for protecting the inner shell (420) and the retroreflector (430), and can resist being crushed by wheels or knocked by foreign objects on the road surface.

The buried solar luminous reflective road stud of the present invention is installed by first drilling a hole in the road surface, then embedding the road stud in the hole and fixing it in the hole by means of structural adhesive, and the outer upper edge of the edge ring of the opening top cover (410A) is roughly flush with the installation and embedding reference surface of the road surface; when working, the straw hat lamp bead can emit light in both directions forward and backward through the side wall of the inner shell (420) and the upper side of the relatively low lower area (410a) directly facing it, and the micro-prism array injection-molded structure reflector sheet with a reflective layer on the bottom can reflect the light of external vehicles and reflect light in both directions forward and backward in the main direction of retro-reflection at a horizontal angle of 10° to 20° upward, and the preformed long afterglow luminous sheet can provide long afterglow luminous function on both sides.

The underground solar luminous reflective road stud of the present invention has the front and rear bidirectional LED luminous function, and can provide front and rear bidirectional reflective indication for motor vehicle drivers or pedestrians by reflecting the car light through the retroreflector, while ensuring waterproof, high pressure resistance and high impact resistance. It also has the left and right long afterglow luminous function, and the left and right long afterglow luminous bodies can be replaced with retroreflectors to realize four-way reflection. In particular, when the underground luminous road stud is insufficient in power and cannot emit light normally, it can also provide reflective indication through the retroreflector and provide long afterglow luminous induction through the long afterglow luminous body, and its reflection angle and reflection performance can achieve actual use effect.

Example

A buried solar-powered reflective road stud comprises a protective shell (510), an inner shell (520), a retroreflector (530), a light-emitting device (540), a photovoltaic device (550), electronic circuit components (560), a packaging adhesive cured molded body (570), a fastening screw (580), an adhesive layer (590), and a long afterglow light-emitting body (5100), as shown in FIGS. 32-35.

The protective shell (510) comprises an opening top cover (510A) and a lower shell (510B).

The opening top cover (510A) is a die-cast annular aluminum alloy or stainless steel ring cover, or an injection-molded part of a reinforced composite material, with an outer diameter of 122 mm, a generally circular outer edge, and an upper opening (510r) in the center that opens upward and is similar to a wide cross.

The front and rear sides of the annular edge ring are symmetrically provided with an upper convex body (510t) that transitions from low to high with a buffer surface (510h) from its outer edge to the inside, and three cylindrical hole-type accommodating hole grooves (530d) are respectively provided thereon, with the opening direction of the hole groove facing the front and rear vehicle facing surfaces and the hole groove opening facing the inclination angle θ1=5°～20° and opening downwardly obliquely. A proper amount of liquid adhesive (epoxy structural adhesive or polyurethane structural adhesive) is respectively injected into the hole-type accommodating hole grooves (530d), and then a double spherical cylindrical glass lens unit is embedded to serve as a retroreflector (530). The retroreflector has a single-side range angle θ4=15°～25°. After the adhesive is cured, an adhesive layer (590) is formed to fix the retroreflector (530) and the accommodating hole groove (530d), thereby forming a retroreflective structure on the front and rear sides, with the included angle θ3=5°～20° between the main direction of retroreflection and the buried reference surface.

The left and right sides of the annular edge ring are symmetrically provided with an upper convex body (510t) transitioning from low to high with a buffer surface (510h) from its outer edge to the inside, and a strip-shaped receiving hole groove (530d) with a hole groove opening facing an inclination angle θ1=35°～55° is provided on the upper convex body (510t), respectively, so that the rare earth-doped alkaline earth aluminate type yellow-green long afterglow luminescent powder can be mixed with a two-component transparent epoxy resin mixture or a two-component transparent MMA resin mixture and then dripped into the receiving hole groove (530d) of the left and right upper convex bodies (510t) The resin mixture is leveled and solidified to form a long afterglow luminous function on the left and right sides. Furthermore, a white adhesive layer (590) can be preset between the long afterglow luminous body and the bottom surface of the receiving hole groove (530d) to serve as a white reflective substrate layer to increase the long afterglow luminous performance. Furthermore, when the resin mixture is completely solidified, glass reflective beads (similar to the road reflective marking structure) can be spread on its surface (disordered) to solidify and combine to form a long afterglow luminous function and reflective function on the left and right sides.

Alternatively, the daylight fluorescent material may be mixed with a two-component transparent epoxy resin mixture or a two-component transparent MMA resin mixture and then dripped into the receiving holes (530d) of the left and right upper convex bodies (510t) for leveling and curing to form, thereby having fluorescent luminescence functions on the left and right sides. Furthermore, a white adhesive layer (590) may be preset between the above-mentioned fluorescent body and the bottom surface of the receiving hole (530d) to serve as a white reflective substrate layer to increase the fluorescent luminescence performance. Furthermore, when the above-mentioned resin mixture is completely cured, glass reflective beads (similar to the road reflective marking structure) may be sprinkled on its surface and cured and combined to form, thereby having fluorescent luminescence functions and reflective functions on the left and right sides.

Alternatively, a liquid two-component epoxy resin mixture or a two-component MMA resin mixture, or a molten hot-melt resin mixture may be dripped into the receiving holes (530d) of the left and right upper convex bodies (510t) to be leveled, and while the resin mixture is completely cured, glass reflective beads (similar to the road reflective marking structure) are sprinkled on the surface to be cured and combined to form, thereby having a reflective function on the left and right sides.

A relatively low area (510a) is respectively provided between the adjacent front, rear, left, and right upper convex bodies (510t), and a through-type fixing hole (510k) is respectively provided on the relatively low area (510a), and a downward convex cylindrical fixing hole pile head (510A-z) is provided below the through-type fixing hole (510k), and the section where the cylindrical fixing hole pile head (510A-z) is located is a downward convex structural thickening section (510A-s),

The lower shell (510B) is a cast aluminum protective bottom shell with an upwardly opening accommodating cavity (510q), which is larger at the top and smaller at the bottom. The upper edge of the lower shell has a circular ring with an outer diameter of 138 mm, a thickness of 4.2 mm, and an outer height of 12.5 mm. The upper edge of the ring is connected to the side wall of the lower cavity shell by a stepped inner ring. The stepped inner ring is 7.2 mm wide. The outer contour of the lower cavity shell of the lower shell (510B) is similar to a wave ring when viewed from above. The side wall of the lower cavity shell of the lower shell (510B) has fixing hole piles corresponding to the opening top cover (510A). The head (510A-z) is respectively provided with a recessed portion (510B-a) of a downwardly convex structural thickened section (510A-s) for accommodating the opening top cover (510A) and a fixed hole pile position (510B-w) for accommodating the fixed hole pile head (510A-z); a fixed hole pile column (510B-z) for supporting the fixed hole pile head (510A-z) is provided below the fixed hole pile position (510B-w); and vertical ribs (510j) are provided on the outer side wall of the lower shell (510B), so as to improve the structural strength of the shell and the firmness of installation.

The inner shell (520) is a composite structure inner shell composed of a transparent PC injection molded inner shell with a downwardly opening accommodating cavity at its upper portion and a bottom cover combined by an ultrasonic composite structure. The central portion of the top of the inner shell (520) has a generally cross-shaped raised main structure corresponding to the cross-shaped upper opening (510r) of the open top cover (510A) in a top-down view, which serves as a light-emitting portion and a lighting portion. The inner shell (520) has a relatively (cross-shaped top) lower pressing portion (520t) around the cross-shaped top that forms a step-shaped structure with the cross-shaped top, thereby forming an inner shell with a step-shaped structure that is smaller at the top and larger at the bottom. The top of the cross-shaped top has anti-slip convex particles. A solar photovoltaic panel is fixed below the center of the cross-shaped top by a slot and a light-transmitting adhesive to serve as a photovoltaic device (550). The left and right side walls (520e) of the cross-shaped top facing forward and backward are respectively inclined and face the upper convex bodies (510e) of the front and rear side portions. 0t) and the upper convex bodies (510t) on the left and right sides, a V-shaped groove is provided on the inner top walls of the left and right side parts of the cross-shaped top, and a light board with straw hat lamp beads welded on both sides and a patch LED welded in the center to serve as a light-emitting device (540) is fixed below the cross-shaped top through a slot and adhesive, and a light board with a patch LED welded upward is fixed below the front and rear side parts of the cross-shaped top through a slot and adhesive to serve as a light-emitting device (540), so that a light emission channel for the light-emitting device (540) to emit light in both directions is formed above the left and right side parts of the inner shell (520) and the relatively low low position (510a) directly opposite thereto, and has a front and rear bidirectional and upward LED light-emitting indication function, and the pressing part (520t) is provided with a recessed part (520a) opposite to the downward convex structural thickened section (510A-s) of the opening top cover (510A),

The electronic circuit components (560) include batteries, drive and control circuits, etc., which are connected to the light-emitting device (540) and the photovoltaic device (550) circuits and are sealed in the accommodating cavity of the inner shell (520) through a white two-component epoxy resin encapsulation glue curing molded body (570) to form a waterproof packaging structure with preliminary pressure and impact resistance capabilities.

A rubber gasket is placed on the bottom surface of the accommodating cavity (510q) of the lower shell (510B), the waterproof encapsulated inner shell structure is embedded in the accommodating cavity (510q) of the lower shell (510B), the opening top cover (510A) is pressed into position on the opening of the lower shell (510B), the fastening screw (580) is screwed on, and silicone glue is then dripped on the fastening screw (580) and cured to seal and act as a plug, thereby locking the waterproof encapsulated inner shell structure in the protective shell (510), wherein The bottom surface of the open top cover (510A) is partially pressed onto the stepped inner ring of the lower shell (510B), and partially pressed onto the pressed portion (520t) of the inner shell (520). The downwardly convex structural thickened section (510A-s) of the open top cover (510A) is pressed into the recessed portion (520a) of the inner shell (520) and the recessed portion (510B-a) of the lower shell (510B). The fixing hole pile head (510A-z) of the open top cover (510A) is pressed onto the lower shell (510B). In the fixing hole pile position (510B-w) above the fixing hole pile column (510B-z) of the shell (510B), the upper edge of the lower shell (510B) surrounds the outer edge of the annular edge ring of the opening top cover (510A), and the inner side surface or inner side wall of the upper convex body (510t) close to the upper opening of the accommodating cavity (510q) and the top outer side surface or outer side wall of the inner shell (520) are matched with tolerances to form a combined structure in which the upper convex body (510t) acts as a protective block structure. The opening top cover (510A) and the upper convex body (510t) thereon are made of metal, and the inner shell (520) is made of PC plastic. The strength of the opening top cover (510A) is greater than the strength of the inner shell (520) and also greater than the strength of the retroreflector (530). Therefore, the opening top cover (510A) and the upper convex body (510t) thereon can form a reinforced structure for protecting the inner shell (520) and the retroreflector (530), and can resist being crushed by wheels or knocked by foreign objects on the road surface.

Furthermore, the opening top cover (510A) may also be an injection-molded part made of a non-metallic reinforced composite material, and the retroreflector is bonded to the receiving hole groove (530d) of the opening top cover (510A) via an adhesive layer (590) or an ultrasonic thermoplastic welding structure.

The buried solar-powered reflective road stud of the present invention is installed by first drilling a hole in the road surface, then embedding the road stud in the hole and fixing it in the hole by means of structural adhesive, so that the outer upper edge of the edge ring of the opening top cover (510A) is roughly flush with the installation and embedding reference surface of the road surface; when in operation, the straw hat lamp bead can emit light in both the front and rear directions through the side wall of the inner shell (520) and the upper part of the relatively low lower area (510a) directly facing it, the double spherical cylindrical glass lens unit can reflect the light of external vehicle lights in both the front and rear directions, and the preformed long afterglow luminous sheet can provide long afterglow luminous function on both sides.

The underground solar luminous reflective road stud of the present invention has the front and rear bidirectional LED luminous function, and can provide front and rear bidirectional reflective indication for motor vehicle drivers or pedestrians by reflecting the car light through the retroreflector, while ensuring waterproof, high pressure resistance and high impact resistance. It also has the left and right long afterglow luminous function, especially when the underground luminous road stud is insufficient in power and cannot emit light normally, it can also provide reflective indication through the retroreflector and provide long afterglow luminous induction through the long afterglow luminous body, and its reflection angle and reflection performance can achieve the actual use effect, and can better meet the requirements of intelligent development of road studs.

Example

A buried solar-powered reflective road stud comprises a protective shell (610), an inner shell (620), a retroreflector (630), a light-emitting device (640), a photovoltaic device (650), electronic circuit components (660), a packaging glue cured molded body (670), fastening screws (680), and an adhesive layer (690), as shown in FIGS. 36-45.

The protective shell (610) comprises an opening top cover (610A) and a lower shell (610B).

The opening top cover (610A) is a die-cast annular aluminum alloy or stainless steel ring cover with an outer diameter of 120 mm, a generally circular outer edge, and an octagonal upper opening (610r) in the center that opens upward, as shown in FIG42 .

The front and rear sides (front and rear ends) of the annular edge ring are symmetrically provided with an upper convex body (610t) that transitions from low to high with a buffer surface (610h) from its outer edge to the inside, and a strip-shaped receiving hole groove (630d) with a hole groove opening facing an inclination angle of θ1=35°～55° is provided on it. An appropriate amount of liquid adhesive (epoxy structural adhesive or polyurethane structural adhesive) is injected into the receiving hole groove (630d), and then a corresponding shape and a deflection angle of θ2=15°～35° are embedded. An injection-molded reflective sheet with a plurality of small glass lens reflective beads arranged in an orderly array structure at the bottom and a reflective bottom layer serves as a retroreflector (630). The retroreflective light of the retroreflector has a single-side range angle θ4 of 10° to 25°. After the adhesive is cured, a bonding layer (690) is formed to fix the retroreflector (630) and the receiving hole groove (630d) to form a structure, thereby forming a retroreflective structure with an angle θ3 of 5° to 30° between the main direction of retroreflection and the buried reference surface on the front and rear sides.

The left and right sides of the annular edge ring are symmetrically provided with two upper convex bodies (610t) that transition from low to high with a buffer surface (110h) from the outer edge thereof to the inside, the center of the upper convex body (610t) is provided with a downward depression, and the front and rear sides thereof facing outward are provided with a cylindrical receiving hole groove (630d) with the hole groove direction facing the front and rear vehicle faces and the hole groove opening facing the inclination angle θ1=5°～18°, and the receiving hole groove (630d) is respectively injected with an appropriate amount of liquid adhesive (epoxy bonding agent). A double spherical cylindrical glass lens unit with a diameter of about 9 mm and a length of about 10 mm is embedded therein to serve as a retroreflector (630), wherein the retroreflected light of the retroreflector has a single-side range angle θ4 of 12° to 25°. After the adhesive is cured, a bonding layer (690) is formed to fix the retroreflector (630) and the receiving hole groove (630d) to form a structure, thereby forming a retroreflective structure with an angle θ3 of 5° to 18° between the main direction of retroreflection and the buried reference plane on the front and rear sides;

The reflectors (630) at the front and rear sides (front and rear ends) and the reflectors (630) at the left and right sides respectively form a front and rear combination configuration to achieve a brightness superposition effect of the retroreflectors and matching of the reflection angles.

The above-mentioned accommodating holes (630d) are a combination configuration of hole-type accommodating holes and groove-type accommodating holes, that is, groove-type accommodating holes are set on the upper convex bodies (610t) on the front and rear sides, and a plurality of small glass lens reflective beads with a reflective bottom layer at the bottom are combined in the groove-type accommodating holes to form an injection-molded reflective sheet arranged in an orderly array combination structure (a retroreflector with an array structure composed of a plurality of microprisms with a reflective coating at the bottom or a retroreflector with an array structure composed of a plurality of microprisms with an air layer at the bottom can also be used), and hole-type accommodating holes are set on the upper convex bodies (610t) on the left and right sides, and double spherical cylindrical glass lens units are combined in the hole-type accommodating holes. The characteristics of different types of retroreflectors can be combined to maximize their strengths and avoid their weaknesses to achieve an optimal combination configuration, so as to achieve a brightness superposition effect and angle matching of multiple retroreflectors and improve retroreflection efficiency.

Relatively low areas (610a) (a total of 6, including the concave areas in the center of the left and right upper convex bodies) are respectively provided between the adjacent front, rear, left and right upper convex bodies (610t), and through-type fixing holes (610k) are respectively provided on the relatively low areas (610a), and downwardly convex cylindrical fixing hole pile heads (610A-z) are provided below the through-type fixing holes (610k).

The lower shell (610B) is a cast aluminum protective bottom shell with an upwardly opening accommodating cavity (610q), which is larger at the top and smaller at the bottom. The upper edge of the lower shell has a circular ring with an outer diameter of 135 mm, a thickness of 4 mm, and an outer height of 12 mm. The upper edge of the ring is connected to the side wall of the lower cavity shell by a stepped inner ring. The stepped inner ring is 7 mm wide. The outer contour of the lower cavity shell of the lower shell (610B) is similar to a wave ring when viewed from above. The lower cavity shell of the lower shell (610B) is The fixing hole pile heads (610A-z) on the side walls corresponding to the opening top covers (610A) are respectively provided with fixing hole pile positions (610B-w) for accommodating the fixing hole pile heads (610A-z), and fixing hole pile columns (610B-z) for supporting the fixing hole pile heads (610A-z) are provided below the fixing hole pile positions (610B-w). The outer side wall of the lower shell (610B) is provided with vertical ribs (610j), which can improve the structural strength of the shell and the firmness of installation.

The inner shell (620) is a transparent PC injection-molded inner shell with a downward-opening accommodating cavity, or the inner shell (620) is an inner shell of a composite structure formed by combining a transparent PC injection-molded inner shell with a downward-opening accommodating cavity and an injection-molded bottom cover at its upper portion through an ultrasonic composite structure. The central portion of the top of the inner shell (620) has a generally cross-shaped raised main structure in a top-down view, which serves as a light-emitting portion and a lighting portion. The inner shell (620) has a relatively (cross-shaped top) lower pressing portion (620t) around the cross-shaped top that forms a stepped structure with the cross-shaped top, thereby forming an inner shell with a stepped structure that is smaller at the top and larger at the bottom. The top of the cross-shaped top has anti-slip convex particles, and a solar photovoltaic panel is fixed to the lower portion of the center of the cross-shaped top through a slot and a light-transmitting adhesive to serve as a photovoltaic device. The left and right side parts of the cross-shaped top have side walls (620e) facing forward and backward respectively in a slope shape, facing the upper convex bodies (610t) of the front and rear side parts and the relatively low low position (610a) between the upper convex bodies (610t) of the left and right side parts, and the inner top walls of the left and right side parts of the cross-shaped top are provided with V-shaped grooves, and a light board with straw hat lamp beads welded on both sides facing forward and backward and a patch LED welded in the center facing upward is fixed thereunder through a slot and adhesive, thereby forming a light emission channel for the light emitting device (640) to emit light in both directions, and having a front and rear bidirectional and upward light emission indication function.

The electronic circuit components (660) include batteries, drive and control circuits, etc., which are connected to the light-emitting device (640) and the photovoltaic device (650) circuits and are sealed in the accommodating cavity of the inner shell (620) through a white two-component epoxy resin encapsulation glue curing molding (670) to form a waterproof packaging structure with preliminary pressure and impact resistance capabilities. Its cross-section is shown in Figure 2, and its three-dimensional cross-section views are shown in Figures 39 and 40.

A rubber gasket is placed on the bottom surface of the receiving cavity (610q) of the lower shell (610B), the waterproof package inner shell structure is embedded in the receiving cavity (610q) of the lower shell (610B), the opening top cover (610A) is aligned and pressed onto the opening of the lower shell (610B), the fastening screws (680) are screwed on, and silicone glue is dripped on the fastening screws (680) and cured to seal and act as a plug, thereby locking the waterproof package inner shell structure in the protective shell (610).

Part of the bottom surface of the opening top cover (610A) is pressed onto the stepped inner ring of the lower shell (610B), and part of the bottom surface is pressed onto the pressing portion (620t) of the inner shell (620); the fixing hole pile head (610A-z) of the opening top cover (610A) is pressed into the fixing hole pile position (610B-w) above the fixing hole pile column (610B-z) of the lower shell (610B); the surrounding ring portion of the upper edge of the lower shell (610B) surrounds the outer edge of the annular edge ring of the opening top cover (610A); the inner side surface or inner side wall of the upper convex body (610t) close to the upper opening of the accommodating cavity (610q) is pressed onto the inner shell (610q); 20) is formed by a tolerance fit manner to form an upper convex body (610t) serving as a combined structure of a guard block structure. Since the opening top cover (610A) and the upper convex body (610t) thereon are made of metal, and the inner shell (620) is made of PC plastic, the strength of the opening top cover (610A) is greater than the strength of the inner shell (620) and also greater than the strength of the retroreflector (630), the opening top cover (610A) and the upper convex body (610t) thereon can form a reinforced structure for protecting the inner shell (620) and the retroreflector (630), and can withstand wheel rolling or collision with foreign objects on the road surface.

Furthermore, epoxy glue can be dripped into the gap between the waterproof packaging inner shell structure and the protective shell (610) and cured to form a packaging glue cured molded body (670), thereby forming a secondary waterproof packaging structure.

Furthermore, the opening top cover (610A) may also be an injection molded part of a non-metal reinforced composite material, and the retroreflector is bonded to the receiving hole groove (630d) of the opening top cover (610A) via an adhesive layer (690) or an ultrasonic thermoplastic welding structure.

Furthermore, an outer convex body (610x) (also called an outer convex limiting support body) extending horizontally outward is provided at the upper edge of the lower shell (610B) (where the buried reference surface is located), which can play a limiting role during the pavement installation and prevent sinking after the pavement installation, as shown in Figures 44 and 45.

The buried solar-powered reflective road stud of the present invention is installed by first drilling a hole in the road surface, then embedding the road stud in the hole and fixing it in the hole by means of structural adhesive, and the outer upper edge of the edge ring of the opening top cover (610A) is roughly flush with the installation and embedding reference surface of the road surface; when in operation, the straw hat lamp bead can emit light in both the front and rear directions through the side wall of the inner shell (620) and the upper side of the relatively low lower area (610a) directly facing it, and the injection-molded reflective sheet composed of a plurality of small lens units with a reflective bottom layer arranged in an orderly manner in an array combination structure can reflect the light of external vehicles and reflect the main direction of the front and rear directions at an elevation angle of 5° to 30° upward from the horizontal, and the double spherical cylindrical glass lens unit can reflect the light of external vehicles from both the front and rear sides.

The buried solar luminous reflective road stud of the present invention has the front and rear bidirectional LED luminous function under the premise of ensuring waterproof, high pressure resistance and high impact resistance, and can also provide front and rear bidirectional reflective indication for motor vehicle drivers or pedestrians by reflecting vehicle lights through a retroreflector. In particular, when the buried luminous road stud is insufficient in power and cannot emit light normally, it can also provide reflective indication through the retroreflector, and its reflective angle and reflective performance can achieve practical use effects. Its pressure resistance can reach more than 200kN, its reflective sight distance can reach more than 150m, and its luminous sight distance can reach more than 500m. It can be used on expressways or high-grade highways with many overloaded and heavy-loaded vehicles, and can also be used on ordinary roads or urban roads. It can also be connected with a wireless module (which can have a signal receiving and/or transmitting function), or an intelligent control module (which can have a data processing function), or a sensor through electronic circuit components to achieve the purpose of intelligent control or multi-mode luminous, and can better adapt to the trend of intelligent development of traffic.

Example

A buried solar-powered reflective road stud comprises a protective shell (710), an inner shell (720), a retroreflector (730), a light-emitting device (740), a photovoltaic device (750), electronic circuit components (760), a packaging glue cured molded body (770), fastening screws (780), and an adhesive layer (790), as shown in FIGS. 46-49.

The protective shell (710) is a cast aluminum protective bottom shell with a accommodating cavity (710q) opening upward, which is larger at the top and smaller at the bottom. The upper edge of the protective shell is rounded outward, and the center is provided with an opening similar to a wide cross facing upward. The front and rear sides near the upper edge are symmetrically provided with an upper convex body (710t) connected to the bottom shell, which transitions from low to high from the outer edge to the inside with a buffer surface (710h), and is provided with three cylindrical hole-type containers, the openings of which are facing the front and rear vehicle surfaces and the openings of which are facing downward at an inclination angle of θ1=5° to 20°. A hole groove (730d) is provided, wherein an appropriate amount of liquid adhesive (epoxy structural adhesive or polyurethane structural adhesive) is respectively injected into the hole-type receiving hole groove (730d), and then a double spherical cylindrical glass lens unit is embedded to serve as a retroreflector (730), wherein the retroreflected light of the retroreflector has a single-side range angle θ4 of 15° to 25°, and after the adhesive is cured, a bonding layer (790) is formed, and the retroreflector (730) is fixed to the receiving hole groove (730d), thereby forming a retroreflective structure with an angle θ3 of 5° to 20° between the main direction of retroreflection and the buried reference plane on the front and rear sides,

The left and right sides of the protective shell (710) near the upper edge are symmetrically provided with an upper convex body (710t) connected to the bottom shell, which transitions from low to high from the outer edge inward with a buffer surface (710h). The upper convex body (710t) is provided with an outward depression at the inner central part near the cross-shaped opening, which can form a chimeric structure with the corresponding left and right parts of the inner shell (720).

The upper edge of the protective shell (710) is connected to the side wall of the lower cavity shell by a stepped inner ring. The stepped inner ring of the protective shell (710) is provided with a fixing hole (710) corresponding to the inner shell (720). The outer contour of the lower cavity shell is similar to a wave ring when viewed from above. The outer wall of the lower shell (710B) is provided with vertical ribs (710j), which can improve the structural strength of the shell and the firmness of installation.

The inner shell (720) is a composite structure inner shell composed of a transparent PC injection-molded inner shell with a downward-opening accommodating cavity at its upper portion and a bottom cover combined by an ultrasonic composite structure. The central portion of the top of the inner shell (720) has a generally cross-shaped raised main structure corresponding to the cross-shaped opening of the protective shell (710) when viewed from above, which serves as a light-emitting portion and a lighting portion. The cross-shaped top of the inner shell (720) is surrounded by a relatively (cross-shaped top) lower pressing portion (720t) corresponding to the cross-shaped opening of the protective shell (710) and forming a stepped structure with the cross-shaped top. The pressing portion (720t) is provided with a fixing hole corresponding to the fixing hole (710k) on the stepped inner ring of the protective shell (710), thereby forming a shell with a stepped structure that is smaller at the top and larger at the bottom. A solar photovoltaic panel serving as a photovoltaic device (750) is fixed to the lower part of the center of the top through a slot and a light-transmitting adhesive. The side walls (720e) facing forward and backward on the left and right sides of the cross-shaped top are respectively inclined and face the relatively low low position (710a) between the upper convex bodies (710t) of the front and rear sides and the upper convex bodies (710t) of the left and right sides. The inner top walls of the left and right sides of the cross-shaped top are provided with V-shaped grooves, and a light board with straw hat lamp beads welded on both sides is fixed to the lower part through a slot and an adhesive to serve as a light-emitting device (740). Thus, a light emission channel for the light-emitting device (740) to emit light in both directions in the front and rear directions is formed on the left and right sides of the inner shell (720) and above the relatively low low position (710a) facing the same, and the light-emitting device (740) has a front and rear bidirectional LED light-emitting indication function.

The electronic circuit components (760) include a storage battery, a drive and control circuit, etc., which are connected to the light-emitting device (740) and the photovoltaic device (750) circuits and are sealed in the accommodating cavity of the inner shell (720) through a white two-component epoxy resin encapsulation glue curing molding (770) to form a waterproof encapsulation inner shell structure with preliminary pressure resistance and impact resistance.

A rubber gasket is placed on the bottom surface of the accommodating cavity (710q) of the protective shell (710), and the waterproof encapsulated inner shell structure is embedded in the accommodating cavity (710q) of the protective shell (710), so that the pressing portion (720t) of the inner shell (720) is pressed against the stepped inner ring of the protective shell (710), and a fastening screw (780) is screwed into the fixing hole (710k), and then silicone glue is dripped on the fastening screw (780) and cured to seal and act as a plug, thereby fixing the waterproof encapsulated inner shell structure in the protective shell (710).

The pressing portion (720t) of the inner shell (720) is pressed onto the stepped inner ring of the protective shell (710), the upper edge of the protective shell (710) surrounds the top edge of the inner shell (720), and the inner side surface or inner side wall of the upper convex body (710t) close to the upper opening of the accommodating cavity (710q) and the outer side surface or outer side wall of the top of the inner shell (720) are matched with each other in a tolerance manner to form a combined structure in which the upper convex body (710t) acts as an edge protection structure. The protective shell (710) and the upper convex body (710t) thereon are made of metal, and the inner shell (720) is made of PC plastic. The strength of the protective shell (710) is greater than the strength of the inner shell (720) and also greater than the strength of the retroreflector (730). Therefore, the protective shell (710) and the upper convex body (710t) thereon can form a reinforced structure for protecting the inner shell (720) and the retroreflector (730), and can resist being crushed by wheels or knocked by foreign objects on the road surface.

The buried solar-powered reflective road stud of the present invention is installed by first drilling a hole in the road surface, then embedding the road stud in the hole and fixing it in the hole by means of structural adhesive, and the outer upper edge of the protective shell (710) is roughly flush with the installation and embedding reference surface of the road surface; when in operation, the straw hat lamp bead can emit light in both the front and rear directions through the side wall of the inner shell (720) and the upper side of the relatively low lower area (710a) directly facing it, and the double spherical cylindrical glass lens unit can reflect the light of external vehicle lights in both the front and rear directions.

The buried solar luminous reflective road stud of the present invention has the front and rear bidirectional LED lighting function under the premise of ensuring waterproof, high pressure resistance and high impact resistance, and can also provide front and rear bidirectional reflective indication for motor vehicle drivers or pedestrians by reflecting vehicle lights through a retroreflector. In particular, when the buried luminous road stud is insufficient in power and cannot emit light normally, it can also provide reflective indication through the retroreflector and provide long afterglow luminous induction through the long afterglow luminous body, and its reflection angle and reflection performance can achieve actual use effect.

Example

A buried solar-powered reflective road stud comprises a protective shell (810), an inner shell (820), a retroreflector (830), a light-emitting device (840), a photovoltaic device (850), electronic circuit components (860), a packaging glue-cured molded body (870), fastening screws (880), and an adhesive layer (890), as shown in FIGS. 50-54.

The protective shell (810) is a cast aluminum protective bottom shell with an upwardly opening accommodating cavity (810q), which is larger at the top and smaller at the bottom. Its upper edge is expanded outwardly in a circular shape, and an upwardly facing wide cross-shaped opening is provided in the center. Two relatively short upper convex bodies (810t) connected to the bottom shell are symmetrically provided at the front and rear sides of the upper edge, and transition from low to high from the outer edge to the inside with a buffer surface (810h) to serve as protective stops.

The left and right sides of the protective shell (810) near the upper edge are symmetrically provided with a relatively high upper convex body (810t) connected to the bottom shell, which transitions from low to high from the outer edge to the inside with a buffer surface (810h) and acts as a protective retaining edge. The front and rear sides facing outward are respectively provided with a cylindrical receiving hole groove (830d) with the hole groove direction facing the front and rear vehicle surfaces and the hole groove opening facing the inclination angle θ1=5°～20°. The receiving hole groove (830d) is respectively injected with an appropriate amount of liquid adhesive ( Epoxy structural adhesive or polyurethane structural adhesive), and then embedding a double spherical cylindrical glass lens unit with a diameter of about 9 mm and a length of about 10 mm to serve as a retroreflector (830), the retroreflected light of the retroreflector has a single-side range angle θ4=12°～25°, and the adhesive is cured to form a bonding layer (890), which fixes the retroreflector (830) and the accommodating hole groove (830d) to form a structure, thereby forming a retroreflective structure with an angle θ3=5°～20° between the main direction of retroreflection and the buried reference plane on the front and rear sides,

The height of the top surface of the upper convex body (810t) relative to the buried reference surface [corresponding to the upper edge of the protective shell (810) after assembly] is about 8 mm. The upper convex body (810t) is provided with an outward depression at the inner central portion close to the cross-shaped opening, which can form a chimeric structure with the corresponding left and right portions of the inner shell (820).

The upper edge of the protective shell (810) is connected to the side wall of the lower cavity shell by a stepped inner ring. The stepped inner ring of the protective shell (810) is provided with a fixing hole (810) corresponding to the inner shell (820). The outer contour of the lower cavity shell is similar to a wave ring when viewed from above. The outer wall of the lower shell (810B) is provided with vertical ribs (810j), which can improve the structural strength of the shell and the firmness of installation.

The inner shell (820) is a composite structure inner shell composed of a transparent PC injection-molded inner shell with a downward-opening accommodating cavity at its upper part and a bottom cover combined by an ultrasonic composite structure. The central part of the top of the inner shell (820) has a generally cross-shaped raised main structure corresponding to the cross-shaped opening of the protective shell (810) in a top view, which serves as a light-emitting part and a lighting part. The cross-shaped top of the inner shell (820) is surrounded by a relatively (cross-shaped top) lower pressing part (820t) corresponding to the cross-shaped opening of the protective shell (810) and forming a stepped structure with the cross-shaped top. The pressing part (820t) is provided with a fixing hole corresponding to the fixing hole (810k) on the stepped inner ring of the protective shell (810), thereby forming a shell with a stepped structure that is smaller at the top and larger at the bottom. The lower part of the center of the cross-shaped top is provided with a slot and A solar photovoltaic panel is fixed with light-transmitting adhesive to serve as a photovoltaic device (850). The buffer slopes on the front and rear sides of the cross-shaped top are respectively provided with strip-shaped receiving holes (830d) with the openings of the holes facing the inclination angle θ1=35° to 55°. The receiving holes (830d) are provided with an ultrasonic thermoplastic welding structure combined with a plurality of small glass lens reflective beads of a corresponding shape and arranged at a deflection angle θ2=15° to 35° at the bottom and injection-molded reflective sheets arranged in an array combination structure in an orderly manner to serve as a retroreflector (830). The retroreflector has a single-side range angle θ4 of about 20°. The retroreflector (830) and the receiving holes (830d) are structurally fixed, thereby forming a retroreflector structure on the front and rear sides, with the included angle (elevation angle) θ3=5° to 30° between the main direction of retroreflection and the buried reference surface.

The side walls (820e) facing forward and backward on the left and right sides of the cross-shaped top are respectively inclined and face the upper convex bodies (810t) on the front and rear sides and the relatively low low position (810a) between the upper convex bodies (810t) on the left and right sides. The inner top walls of the left and right sides of the cross-shaped top are provided with V-shaped grooves, and a light board with straw hat lamp beads welded on both sides is fixed thereunder by means of a slot and adhesive to serve as a light emitting device (840), thereby forming a light emission channel for the light emitting device (840) to emit light in both the front and rear directions on the left and right sides of the inner shell (820) and above the relatively low low position (810a) facing the same, and having a front and rear bidirectional LED light emitting indication function.

The electronic circuit components (860) include batteries, drive and control circuits, etc., which are connected to the light-emitting device (840) and the photovoltaic device (850) circuits and are sealed in the accommodating cavity of the inner shell (820) through a white two-component epoxy resin encapsulation glue curing molding (870) to form a waterproof encapsulation inner shell structure with preliminary pressure and impact resistance.

A rubber gasket is placed on the bottom surface of the accommodating cavity (810q) of the protective shell (810), and the waterproof encapsulated inner shell structure is embedded in the accommodating cavity (810q) of the protective shell (810), so that the pressing portion (820t) of the inner shell (820) is pressed against the stepped inner ring of the protective shell (810), and a fastening screw (880) is screwed into the fixing hole (810k), and then silicone glue is dripped on the fastening screw (880) and cured to seal and act as a plug, thereby fixing the waterproof encapsulated inner shell structure in the protective shell (810).

The pressing portion (820t) of the inner shell (820) is pressed onto the stepped inner ring of the protective shell (810), the upper edge of the protective shell (810) surrounds the top edge of the inner shell (820), and the inner side surface or inner side wall of the upper convex body (810t) close to the upper opening of the accommodating cavity (810q) and the outer side surface or outer side wall of the top of the inner shell (820) are matched with the tolerance to form a combined structure in which the upper convex body (810t) acts as a protective block structure (front and rear sides) and an edge protection structure (left and right sides). Since the protective shell (810) and the upper convex body (810t) thereon are made of metal, and the inner shell (820) is made of PC plastic, the strength of the protective shell (810) is greater than that of the inner shell (820), so the protective shell (810) and the upper convex body (810t) thereon can form a reinforcing structure for the inner shell (820) to protect it, and can resist wheel rolling or collision with foreign objects on the road surface.

The buried solar-powered reflective road stud of the present invention is installed by first drilling a hole in the road surface, then embedding the road stud in the hole and fixing it in the hole by means of structural adhesive, and the outer upper edge of the protective shell (810) is roughly flush with the installation and embedding reference surface of the road surface; when working, the straw hat lamp bead can emit light in both the front and rear directions through the side wall of the inner shell (820) and the upper side of the relatively low lower area (810a) directly facing it, and the injection-molded reflective sheet with a plurality of small glass lens reflective beads with a reflective bottom layer arranged in an orderly manner in an array combination structure can reflect the front and rear bidirectional light of the external vehicle lights, and the double spherical cylindrical glass lens unit can reflect the front and rear two-sided light of the external vehicle lights.

The buried solar luminous reflective road stud of the present invention has the front and rear bidirectional LED lighting function under the premise of ensuring waterproof, high pressure resistance and high impact resistance, and can also provide front and rear bidirectional reflective indication for motor vehicle drivers or pedestrians by reflecting vehicle lights through a retroreflector. In particular, when the buried luminous road stud is insufficient in power and cannot emit light normally, it can also provide reflective indication through the retroreflector and provide long afterglow luminous induction through the long afterglow luminous body, and its reflection angle and reflection performance can achieve actual use effect.

The above description is only a preferred solution of the present invention and is not intended to limit the present invention. All modifications or deformations, combinations or superpositions, equivalent substitutions, etc. made within the spirit and principles of the present invention, or the application of this technology to related and similar technical fields, should be included in the protection scope of the present invention.

Claims (26)

A buried solar-powered luminous reflective road stud, comprising a protective shell (1), an inner shell (2) at least the top of which is made of a transparent material, a retroreflector (3), a light-emitting device (4), a photovoltaic device (5), an electronic circuit component (6) including an energy storage element, a packaging glue cured molded body (7), and a fastener (8), characterized in that: the protective shell (1) is a cavity-shaped protective shell with an integrated structure having a containing cavity (1q) and an upper opening (1r) on the top, or is a cavity-shaped protective shell with an assembled structure formed by assembling at least two parts and having a containing cavity (1q) and an upper opening (1r) on the top. The inner shell (2) is a shell having an optical structure in its transparent portion and a receiving cavity (2q) below its transparent top. The strength of the protective shell (1) is greater than the strength of the inner shell (2); the lower portion of the inner shell (2) is buried in the accommodating cavity (1q) of the protective shell (1), and is combined with a fastener (8) to form a partially protected double shell structure in which the transparent top of the inner shell (2) is partially or completely exposed. The top of the protective shell (1) is provided with at least two upper convex bodies (1t) whose tops are at a height H relative to the buried reference plane, and correspondingly, other parts without upper convex bodies form a low position (1a) that is relatively low but not lower than the buried reference plane. The top of the protective shell (1) or/and the top of the inner shell (2) are provided with a receiving hole groove (3d), and a retroreflector (3) is combined in the receiving hole groove (3d), wherein at least one of the retroreflectors (3) in the receiving hole groove (3d) forms a lateral retroreflective structure in which the main direction of the retroreflected light and the buried reference plane have an angle of less than 45°. The light-emitting device (4), photovoltaic device (5), and electronic circuit components (6) are assembled through circuit connection and packaged in the above-mentioned double shell structure in combination with a packaging glue cured molded body (7) to form an underground solar light-emitting reflective road stud with a side-reflecting function, a waterproof packaging structure, and a high-strength structure. The inner side surface or inner wall of the upper convex body (1t) on the protective shell (1) close to the upper opening (1r) and the outer side surface or outer wall of the top of the inner shell (2) are matched with tolerance to form a combined structure in which the upper convex body (1t) can provide mechanical protection for the inner shell (2) and/or the retroreflector (3); the inner shell (2) at least includes a transparent top portion where the photovoltaic device (5) is located, which is exposed from the upper opening (1r) of the protective shell (1) and is higher than the lower area (1a) of the protective shell (1); and the whole has a light emission channel for the light-emitting device (4) to emit light from the inside to the outside through the optical structure on the transparent portion of the inner shell (2) and the space above the lower area (1a) of the protective shell (1). According to claim 1, an underground solar-powered reflective road stud is characterized in that: at least two upper convex bodies (1t) whose outer edge parts are lower than but not lower than the underground reference plane and whose top ends are at a height H relative to the underground reference plane are provided on the top of the unopened part of the protective shell (1), wherein at least one of the upper convex bodies (1t) is provided with an accommodating hole groove (3d), and the accommodating hole groove (3d) is a hole-type accommodating hole groove or/and a groove-type accommodating hole groove, and a retroreflector (3) is combined in the accommodating hole groove (3d) through a mosaic structure or/and an adhesive layer (9), so as to form a lateral retroreflective structure in which the angle between the main direction of the retroreflected light and the underground reference plane is less than 45°. The light emitting device (4) is an LED light emitting device. The light emitting device (4), the photovoltaic device (5), and the electronic circuit components (6) are assembled through circuit connection and combined with the encapsulation glue cured molding (7) to be encapsulated in the accommodating cavity (2q) of the inner shell (2) to form a waterproof encapsulation inner shell structure with preliminary pressure resistance and impact resistance. The lower part of the inner shell (2) is buried in the accommodating cavity (1q) of the protective shell (1), and the protective shell (1) and the waterproof encapsulated inner shell structure are combined via a fastener (8) structure to form an integral reinforced structure. The inner side surface or inner side wall of the upper convex body (1t) on the protective shell (1) close to the upper opening (1r) and the outer side surface or outer side wall of the top of the inner shell (2) are matched with each other in a tolerance manner to form a combined structure in which the upper convex body (1t) acts as a protective block structure and/or the upper convex body (1t) acts as an edge protection structure; the transparent top of the inner shell (2) including at least the part where the photovoltaic device (5) is located is exposed from the upper opening (1r) of the protective shell (1); the top height of the inner shell (2) or the top of the retroreflector (3) is The height is slightly lower than or approximately equal to the height H of the upper convex body (1t) but higher than the lower area (1a) of the protective shell (1), and the whole has a light emission channel in which at least one or at least one group of light emitting devices (4) emit light from the inside to the outside through the optical structure on the transparent part of the inner shell (2) and the upper space of the lower area (1a) of the protective shell (1), and forms a lateral light emitting structure in which the main light emission direction of at least one beam of light emitted through the light emission channel has an angle of less than 45 degrees with the buried reference plane. The underground solar-powered reflective road stud according to claim 1 is characterized in that: an upper convex body (1t) is provided on the top of the front and rear side parts of the protective shell (1) at the part close to the edge of the unopened part, or/and an upper convex body (1t) is provided on the top of the left and right side parts of the protective shell (1) at the part close to the edge of the unopened part, the upper convex body (1t) of the protective shell (1) is a convex block block, or a convex section type retaining edge, or a combination of a convex block block and a convex section type retaining edge, or the upper convex body (1t) of the protective shell (1) is an upper convex body (1t) extending from low to high from its outer edge to the inside, Or two or more upper convex bodies (1t) are provided on the top of the front side or/and the rear side of the protective shell (1) at the position close to the edge of the unopened part, and a low position (1a) relatively low but not lower than the buried reference plane is formed between the adjacent upper convex bodies (1t); or two or more upper convex bodies (1t) are provided on the top of the left side and right side of the protective shell (1) at the position close to the edge of the unopened part, and a low position (1a) relatively low but not lower than the buried reference plane is formed between the adjacent upper convex bodies (1t); or upper convex bodies (1t) are provided on the top of the front and rear side of the protective shell (1) at the position close to the edge of the unopened part and on the top of the left and right side of the protective shell (1) at the position close to the edge of the unopened part, and upper convex bodies (1t) are provided on the top of the left and right side of the protective shell (1), and a low position (1a) relatively low but not lower than the buried reference plane is formed between the upper convex bodies (1t) of the front and rear side of the protective shell (1) and the upper convex bodies (1t) of the left and right side of the protective shell (1); Alternatively, the upper convex body (1t) on the front side or/and the rear side of the protective shell (1) is respectively provided with a receiving hole groove (3d) opening forward or/and opening backward, and the receiving hole groove (3d) is combined with a retroreflector (3), or the upper convex body (1t) on the left side and the right side of the protective shell (1) is respectively provided with a receiving hole groove (3d) opening leftward and opening rightward, and the receiving hole groove (3d) is combined with a retroreflector (3), or the upper convex body (1t) on the left side and the right side of the protective shell (1) is respectively provided with a receiving hole groove (3d) opening forward or/and opening backward, and the receiving hole groove (3d) is combined with a retroreflector (3), Alternatively, the top of the protective shell (1) is provided with a plurality of upper protrusions (1t) at a portion close to the edge of the unopened portion, each upper protrusion (1t) being provided with a receiving hole groove (3d), the receiving hole grooves (3d) being arranged in a front-to-back combination or/and a left-to-right combination and being respectively combined with a retroreflector (3), Or the upper convex body (1t) on the front side of the protective shell (1) is provided with a receiving hole groove (3d) opening toward the front, and the upper convex bodies (1t) on the left and right sides of the protective shell (1) are respectively provided with hole-type receiving hole grooves (3d) opening toward the front, and the receiving hole grooves (3d) are respectively combined with retroreflective bodies (3) with the main direction of retroreflected light facing toward the front, or/and the upper convex body (1t) on the rear side of the protective shell (1) is provided with a receiving hole groove (3d) opening toward the rear, and the upper convex bodies (1t) on the left and right sides of the protective shell (1) are respectively provided with hole-type receiving hole grooves (3d) opening toward the rear, and the receiving hole grooves (3d) are respectively combined with retroreflective bodies (3) with the main direction of retroreflected light facing toward the rear, Alternatively, a plurality of upper protrusions (1t) are provided on the top of the protective shell (1) at a portion close to the edge of the unopened portion, and each upper protrusion (1t) is provided with a receiving hole (3d), wherein the receiving hole (3d) is a combination of a hole-type receiving hole and a groove-type receiving hole, and the hole-type receiving hole and the groove-type receiving hole are respectively combined with retroreflectors (3) of different structures or types. Alternatively, the upper convex body (1t) of the front side or/and the rear side of the protective shell (1) is provided with a groove-type accommodating hole (3d), and the groove-type accommodating hole (3d) is combined with a microprism-type retroreflector with an array structure composed of multiple microprisms with a reflective coating on the bottom, or a microprism-type retroreflector with an array structure composed of multiple microprisms with an air layer on the bottom, or an injection-molded microbead array combination retroreflector with multiple small lens units with a reflective bottom layer arranged in an array combination structure in an orderly manner; the upper convex body (1t) of the left and right sides of the protective shell (1) is provided with a hole-type accommodating hole (3d), and the hole-type accommodating hole (3d) is combined with a lens unit-type retroreflector with an optical lens structure with a spherical surface, a curved surface or a free surface, and a reflective coating on the bottom, which meets the regression reflection condition. The underground solar-powered reflective road stud according to claim 1 is characterized in that: the top of the protective shell (1) is provided with at least two upper convex bodies (1t) at the edge of the unopened portion thereof, the outer edge of which is lower than but not lower than the underground reference plane, the top of which is at a height H relative to the underground reference plane, and which are arranged from low to high from the outer edge to the inside. Alternatively, the upper convex body (1t) on the protective shell (1) is provided with a non-through type receiving hole groove (3d) with an opening facing outward or upward, the retroreflector (3) is embedded in the receiving hole groove (3d) from the top of its opening from the top to the bottom, or the outside of its opening is embedded in the receiving hole groove (3d) from the outside to the inside, a glue receiving groove or a glue extrusion seam is provided between the retroreflector (3) and the bottom surface of the receiving hole groove (3d) or/and the reflector (3) and the side wall of the receiving hole groove (3d), a bonding layer (9) is provided in the glue receiving groove or the bonding seam, and the receiving hole groove (3d) is bonded to the retroreflector (3) via the bonding layer (9), Alternatively, the upper convex body (1t) on the protective shell (1) is provided with a through-type receiving hole groove (3d), the retroreflector (3) is embedded in the receiving hole groove (3d) from the bottom to the top from the bottom of the through-opening thereof or is embedded in the receiving hole groove (3d) from the inside to the outside from the inside of the through-opening thereof, a glue receiving groove or a glue extrusion seam is provided between the reflector (3) and the side wall of the receiving hole groove (3d), a bonding layer (9) is provided in the glue receiving groove or the glue extrusion seam, and the receiving hole groove (3d) is bonded to the retroreflector (3) via the bonding layer (9), Or the accommodating hole groove (3d) of the upper convex body (1t) is composited with a retroreflective body (3) through a plastic welding structure, Alternatively, a fixing hole (1k) is provided in the receiving hole groove (3d) of the upper protrusion (1t), a fastening screw is provided in the fixing hole (1k), and the retroreflector (3) is provided in the receiving hole groove (3d) above the fastening screw. Alternatively, the retroreflector (3) is combined with the receiving hole (3d) of the protective shell (1) via a bonding layer (9) having a relatively high hardness, wherein the bonding layer (9) having a relatively high hardness is a hard glue-type molding formed by solidifying a liquid or molten glue. Alternatively, the retroreflector (3) is combined with the receiving hole (3d) of the protective shell (1) via an adhesive layer (9) with a relatively low hardness, wherein the adhesive layer (9) with a relatively low hardness is a soft-glue-type molded body formed by solidifying a liquid or molten viscose. Alternatively, the bonding layer (9) is an adhesive layer made of a transparent material, or is an bonding layer containing a reflection enhancing material for improving reflection efficiency. Alternatively, the adhesive layer (9) is an adhesive layer capable of secondary bonding, and the retroreflector (3) is a retroreflector capable of being bonded again to the receiving hole groove (3d) of the protective shell (1) through the adhesive layer. According to claim 1, an underground solar-powered reflective road stud is characterized in that: the upper convex body (1t) is provided with at least one hole-type accommodating hole groove (3d) with an opening facing outward or upward, the retroreflector (3) is a lens unit-type retroreflector with an optical lens structure having a spherical surface, a curved surface or a free surface, and a reflective coating on the bottom thereof, which meets the retroreflective condition, and is embedded in the hole-type accommodating hole groove (3d) and forms a fixed structure through an adhesive layer (9), Alternatively, the upper convex body (1t) is provided with at least one groove-shaped accommodating hole (3d) with an opening facing outward or upward, and the retroreflector (3) is a microprism-shaped retroreflector with an array structure composed of a plurality of microprisms with a reflective coating at the bottom, or a microprism-shaped retroreflector with an array structure composed of a plurality of microprisms with an air layer at the bottom, which is embedded in the groove-shaped accommodating hole (3d) and forms a fixed structure through the adhesive layer (9), Alternatively, the upper convex body (1t) is provided with at least one groove-shaped accommodating hole (3d) with an opening facing outward or upward, and the retroreflector (3) is an injection-molded microbead array-combined retroreflector composed of a plurality of small lens units with a reflective bottom layer arranged in an orderly manner in an array-combined structure, which is embedded in the groove-shaped accommodating hole (3d) and forms a fixed structure through an adhesive layer (9). Alternatively, the upper convex body (1t) is provided with at least one groove-shaped receiving hole (3d) with an opening facing outward or upward, and the retroreflector (3) is a plant-shaped retroreflector having a plant-shaped structure with a plurality of glass reflective beads bonded to the surface of the adhesive layer (9) and solidified, and is embedded in the groove-shaped receiving hole (3d) and forms a fixed structure through the adhesive layer (9). or the plurality of receiving holes (3d) of the upper convex body (1t) are respectively provided with retroreflective bodies (3) of two or more different types of retroreflective optical structures or retroreflective forming structures, Alternatively, a groove-type accommodating hole (3d) is provided on the top edge or the high-low transition surface of the side portion of the top near the edge of the inner shell (2); the retroreflector (3) is a microprismatic retroreflector with an array structure of multiple microprisms with a reflective coating at the bottom or a microprismatic retroreflector with an array structure of multiple microprisms with an air layer at the bottom, and is embedded in the groove-type accommodating hole (3d) of the inner shell (2) and forms a fixed structure through the adhesive layer (9); Alternatively, a groove-type accommodating hole (3d) is provided on the top edge of the inner shell (2) or on the high-low transition surface of the side portion of the top portion near the edge, and the retroreflector (3) is a microprism-type retroreflector with an array structure composed of a plurality of microprisms, and is composited in the groove-type accommodating hole (3d) of the inner shell (2) by ultrasonic thermoplastic welding to form a retroreflective structure with an air layer between the bottom surface of the microprism-type retroreflector and the accommodating hole. Alternatively, a groove-type accommodating hole (3d) is provided on the top edge or the high-low transition surface of the side portion of the top near the edge of the inner shell (2); the retroreflector (3) is an injection-molded microbead array combination retroreflector composed of a plurality of small lens units with a reflective bottom layer arranged in an orderly manner in an array combination structure, and is embedded in the groove-type accommodating hole (3d) of the inner shell (2) and forms a fixed structure through an adhesive layer (9); Alternatively, a groove-type accommodating hole (3d) is provided on the top edge or the high-low transition surface of the side portion of the top near the edge of the inner shell (2); the retroreflector (3) is an injection-molded microbead array combination retroreflector composed of a plurality of small lens units with a reflective bottom layer arranged in an orderly manner in an array combination structure, and is composited in the groove-type accommodating hole (3d) of the inner shell (2) by an ultrasonic thermoplastic welding structure. Alternatively, the plurality of accommodating holes (3d) of the inner shell (2) are respectively provided with retroreflective bodies (3) of two or more different types of retroreflective optical structures or retroreflective molding structures. The underground solar-powered reflective road stud according to claim 1 is characterized in that: the angle θ3 between the main direction of the retroreflective light after the retroreflector (3) is combined with the receiving hole (3d) on the upper convex body (1t) and the underground reference plane is between 5° and 30°, Or the angle θ3 between the main direction of the retroreflective light after the retroreflector (3) is combined with the receiving hole groove (3d) on the upper convex body (1t) and the buried reference plane is less than or equal to the single-side range angle θ4 of the retroreflective light, Or the retroreflector (3) has a single-side range angle θ4 of retroreflected light between 10° and 30°. Or the opening of the receiving hole groove (3d) of the upper protrusion (1t) has an inclination angle θ1 between 3° and 60°, Alternatively, the retroreflector (3) is a retroreflector in which the angle between the main direction of the retroreflected light and its normal direction or the deflection angle θ2 of its central axis is between 15° and 35°. Alternatively, the retroreflector (3) is a retroreflector without a deflection angle θ2, the opening direction inclination angle θ1 of the receiving hole groove (3d) of the upper convex body (1t), the angle θ3 between the main direction of the retroreflected light after the retroreflector (3) and the receiving hole groove (3d) on the upper convex body (1t) are combined and the buried reference plane, and the unilateral range angle θ4 of the retroreflected light of the retroreflector (3) satisfies: θ1=θ3≤θ4, Alternatively, the retroreflector (3) is a retroreflector with a self-contained deflection angle θ2, the opening direction inclination angle θ1 of the receiving hole groove (3d) of the upper convex body (1t), the self-contained deflection angle θ2 of the retroreflector (3), the angle θ3 between the main direction of the retroreflected light after the retroreflector (3) and the upper convex body (1t) receiving hole groove (3d) are combined and the buried reference plane, and the single-side range angle θ4 of the retroreflected light of the retroreflector (3) satisfies: θ1-θ2=θ3≤θ4, Alternatively, the retroreflector (3) is a retroreflector having a reflective optical structure with a large incident angle range and/or a large observation angle range, Alternatively, the retroreflector (3) is a lens unit type retroreflector with a spherical optical lens structure and a reflective coating on the bottom thereof, wherein the diameter of the retroreflective lens unit is between 8 mm and 12 mm, and the main direction θ3 of the retroreflected light of the retroreflector (3) after being combined with the receiving hole groove (3d) is approximately equal to the hole groove opening inclination angle θ1 of the receiving hole groove (3d); Alternatively, the retroreflector (3) is an injection-molded microbead array combination retroreflector in which a plurality of small glass lens reflective beads with a reflective bottom layer are orderly arranged in an array combination structure, and the diameter of the small glass lens reflective beads is between 3 mm and 5 mm. Alternatively, the retroreflector (3) is a plant-type retroreflector having a plant-type structure in which a plurality of glass reflective beads are bonded and solidified on the surface of the bonding layer (9), and the diameter of the glass reflective beads solidified on the surface of the plant is less than 3 mm. According to claim 1, an underground solar-powered luminous reflective road stud is characterized in that: an upper convex body (1t) extending from the outer edge to the inside from low to high is provided on the top of one side of the protective shell (1) at a position close to the edge of the unopened portion, and the upper convex body (1t) is provided with a receiving hole (3d) opening outward or upward, and a retroreflector (3) is fixed in the receiving hole (3d) by a mosaic structure and/or an adhesive layer (9), so as to form a retroreflective structure with a unidirectional main direction of lateral retroreflective light, wherein the main direction of light emitted by at least part of the light emitting devices (4) through the light emission channel and the main direction of retroreflective light of the part of the retroreflector (3) are arranged on the same side of the road stud in the horizontal direction, and the angle θ6 between the two is less than 25°. Alternatively, the top of the protective shell (1) on the opposite sides of the protective shell (1) is provided with an upper convex body (1t) extending from the outer edge to the inside from low to high at the portion close to the edge of the unopened portion, and the upper convex bodies (1t) on the opposite sides are provided with a receiving hole groove (3d) with an opening facing outward or upward, and the receiving hole grooves (3d) on the opposite sides are fixed with a retroreflector (3) by means of a mosaic structure and/or an adhesive layer (9), so as to form a bidirectional retroreflective structure with a main direction of lateral retroreflective light, wherein the main direction of light emitted by at least part of the light emitting device (4) through the light emission channel and the main direction of retroreflective light of the part of the retroreflector (3) are arranged in the same side direction of the road stud in the horizontal direction, and the angle θ6 between the two is less than 25°. Alternatively, upper convex bodies (1t) extending from the outer edge to the inside from low to high are respectively provided on the top of the multiple sides of the protective shell (1) at the parts close to the edges of the unopened parts, and the upper convex bodies (1t) on each side are respectively provided with accommodating holes (3d) with openings facing outward or upward, and the accommodating holes (3d) on each side are respectively fixed with retroreflectors (3) via a mosaic structure and/or an adhesive layer (9), so as to form a multi-directional retroreflective structure with a main direction of lateral retroreflected light, wherein the main direction of light emitted by at least part of the light emitting devices (4) through the light emission channel and the main direction of retroreflected light of the part of the retroreflectors (3) are arranged in the same side direction of the road stud in the horizontal direction, and the angle θ6 between the two is less than 25°. The underground solar-powered reflective road stud according to claim 1 is characterized in that: the light emitting portion of the inner shell (2) has at least one of the optical structures of a light refraction structure, a light reflection structure, a light focusing structure, a light diffusion structure, a light angle deflection structure, and a light upward shifting structure, Alternatively, the inner shell (2) has an optical structure that allows the light emitted from the space above the lower area (1a) of the protective shell (1) to be emitted at an angle of less than 15° between the main direction of light emission and the buried reference plane. Alternatively, the inner shell (2) has an optical structure that allows the light emitted from the space above the lower area (1a) of the protective shell (1) to be emitted at an angle of 0° between the main light emission direction and the buried reference plane within an error range, Or the inner shell (2) has an inclined light-emitting surface (2e) with an inclination angle between 25° and 60°, or the light emitting center axis of the light emitted by the light emitting device (4) after passing through the optical structure on the transparent part of the inner shell (2) falls at a position between 1/3 and 2/3 of the total height of the light emitting surface (2e), Alternatively, the height of the transparent top surface of the inner shell (2) relative to the buried reference surface is between 75% and 100% of the height H of the upper convex body (1t), Alternatively, the thickness of the transparent top of the inner shell (2) is between 7 mm and 15 mm. According to claim 1, the underground solar-powered reflective road stud is characterized in that: the light-emitting device (4) comprises an LED light-emitting body with a focusing lens, or the light-emitting device (4) comprises an LED light-emitting body with a half-intensity angle less than 45°, Alternatively, the road stud as a whole comprises a light emission channel in which at least one or at least one group of light emitting devices (4) emit light from the inside to the outside through the optical structure on the transparent part of the inner shell (2) and the upper space of the lower area (1a) of the protective shell (1) in a planar, vertical or oblique manner, and forms a lateral light emitting structure in which the main direction of at least one beam of emitted light through the light emission channel has an angle of less than 15° with the buried reference plane, Or the accommodating cavity (2q) of the inner shell (2) is provided with a plurality or a plurality of groups of light-emitting devices (4), or the accommodating cavity (2q) of the inner shell (2) is provided with light-emitting devices (4) of two or more main wavelengths (two-color or multi-color light-emitting), or the accommodating cavity (2q) of the inner shell (2) is provided with light-emitting devices (4) of different packaging structures, or the accommodating cavity (2q) of the inner shell (2) is provided with different The light-emitting device (4) with a main light-emitting direction, or the accommodating cavity (2q) of the inner shell (2) is respectively provided with light-emitting devices (4) with different light-emitting angles. The underground solar-powered reflective road stud according to claim 1 is characterized in that: the main direction of the light emitted by the part of the light emitting device (4) through the light emission channel and the main direction of the retroreflected light of the part of the retroreflector (3) are arranged on the same side of the road stud in the horizontal direction, and the angle θ6 between the two is less than 25°. or the main direction of the light emitted by part of the light emitting devices (4) through the light emission channel and the main direction of the retroreflected light of part of the retroreflector (3) are arranged on the same side of the road stud in the horizontal direction and the angle θ6 between the two is less than 5°, Alternatively, the main direction of light emitted by part of the light emitting devices (4) through the light emission channel and the main direction of retroreflected light by part of the retroreflector (3) are arranged on the same side of the road stud in the horizontal direction, and the angle θ6 between the two is 0° within the error range. According to claim 1, an underground solar-powered reflective road stud is characterized in that: the protective shell (1) is a cavity-shaped protective shell with an upper opening (1r) assembled by a fastener (8) structure, which is composed of an open top cover with an upper opening (1r) in the middle or approximately in the middle thereof and an open cavity-shaped lower shell with an opening facing upward and a diameter greater than that of the upper opening (1r); or the protective shell (1) is a cavity-shaped protective shell with an assembled structure, which is composed of an upper shell with upper and lower openings and a diameter of the lower opening greater than or equal to that of the upper opening (1r), and a lower shell or a bottom cover assembled by a fastener (8); Alternatively, the inner shell (2) is a transparent shell of an integrated structure with a lower opening, or the inner shell (2) is an inner shell of a composite structure formed by assembling a transparent upper shell with a lower opening, a lower shell or a bottom cover, or the inner shell (2) is an inner shell of an assembled structure formed by assembling a transparent upper shell with a lower opening, a lower shell or a bottom cover; Alternatively, the inner shell (2) is embedded in the accommodating cavity (1q) of the protective shell (1) from top to bottom and is combined with the fastener (8) to form an assembly structure, or the inner shell (2) is embedded in the accommodating cavity (1q) of the protective shell (1) from bottom to top and is combined with the fastener (8) to form an assembly structure. The underground solar-powered reflective road stud according to claim 1 is characterized in that: the protective shell (1) is a protective bottom shell of an assembled structure, or a protective bottom shell of a composite structure, or the protective shell (1) is a shell of an organic material injection molding structure, or a shell of a non-metallic composite material compression molding structure, or a shell of a metal die-casting molding structure, or a shell of a metal forging molding structure, Or the top edge of the protective shell (1) close to the buried reference surface is circular or symmetrically polygonal in top view, or the outer diameter of the portion of the protective shell (1) close to the buried reference surface is greater than or equal to the outer diameter of its lower portion, Or the height of the protective shell (1) below the buried reference surface is between 40 mm and 120 mm, Or the outer diameter of the protective shell (1) at the location of the buried reference surface is between 120 mm and 220 mm, Alternatively, the top of the protective shell (1) is provided with an upper convex body (1t) extending from the outer edge inward with a buffer surface (1h) from low to high, at a portion close to the edge of the unopened portion, and the buffer surface (1h) of the upper convex body (1t) is an inclined surface, a folded surface or an arc surface. Alternatively, the upper convex body (1t) is an upper convex body whose side edge transitions from low to high with an inclined surface, a folded surface or an arc surface, or the upper convex body (1t) is an upper convex body whose inner edge forms an inner side wall structure from low to high with a vertical surface, Or the upper convex body (1t) is a convex block type upper convex body, a convex segment type upper convex body, an arc segment type upper convex body, or a combination of two or more of the above. Or the intersections of the surfaces of the upper convex body (1t) are arcuate surfaces and/or folded surfaces, Or the upper convex body (1t) is provided with a notch, a groove, a hole or an anti-slip structure, Or the height H of the top of the upper protrusion (1t) relative to the buried reference surface is between 7 mm and 12 mm, Or the protective shell (1) is provided with a structural reinforcement auxiliary structure, an assembly auxiliary structure or an installation auxiliary structure, Alternatively, the upper edge of the protective shell (1) is provided with an expansion portion that expands outwards, or is provided with a plurality of convex bodies that are arranged at a certain interval and expand outwards. Alternatively, the fixing hole (1k) is a sunken fixing screw hole, and the fastener (8) is a screw or a bolt. Alternatively, the inner shell (2) is a transparent injection-molded shell with a bottom opening downward, or an inner shell with a composite structure in which a transparent injection-molded shell with a bottom opening downward and a bottom cover are combined via an ultrasonic composite structure, or an inner shell with a composite structure in which a transparent injection-molded shell with a bottom opening downward and a bottom shell are combined via an ultrasonic composite structure. Alternatively, the central portion of the top of the inner shell (2) has a cross-shaped raised main structure relative to the buried reference plane, Alternatively, an anti-slip structure is provided on the top of the inner shell (2). Alternatively, the inner shell (2) is provided with a structural reinforcement auxiliary structure or an assembly auxiliary structure. The underground solar-powered reflective road stud according to claim 1 is characterized in that: a light-emitting device (4) is provided in the accommodation cavity (2q) near the front and rear sides of the inner shell (2) or/and in the accommodation cavity (2q) near the left and right sides thereof, or a photovoltaic device (5) is provided in the middle part of the transparent top of the inner shell (2) or below the middle part thereof. The underground solar-powered reflective road stud according to claim 1 is characterized in that the electronic circuit component (6) is connected to a wireless module, or to an intelligent control module, or to a sensor. The underground solar-powered reflective road stud according to claim 1 is characterized in that a long afterglow luminous body (10) is also arranged in the receiving hole (3d) of the upper protrusion (1t). Alternatively, a long afterglow luminous body (10) is provided in the fixing hole (1k) of the protective shell (1), Alternatively, a long afterglow luminous body (10) which can be excited by the light-emitting device (4) is provided below the transparent top of the inner shell (2). The long afterglow luminous body (10) is a solidified mixed body of a long afterglow luminescent material and a liquid transparent medium, or the long afterglow luminous body (10) is a long afterglow luminous body (10) with a white adhesive layer (9), or the long afterglow luminous body (10) is a solidified body of a transparent encapsulating adhesive (7) mixed with a long afterglow luminescent powder; Alternatively, a fluorescent body is further provided in the receiving hole groove (3d) of the upper protrusion (1t), Alternatively, a fluorescent body is provided in the fixing hole (1k) of the protective shell (1), The phosphor is a solidified body formed by mixing a fluorescent material and a liquid transparent medium, or the phosphor is a phosphor having a white adhesive layer (9), or the phosphor is a solidified body formed by mixing a transparent encapsulating adhesive (7) with a fluorescent material; Alternatively, a light-emitting device (4) is further provided in the accommodating cavity (2q) of the inner shell (2) and emits light upward from the inside to the outside through a transparent portion of the inner shell (2). The underground solar-powered reflective road stud according to claim 1 is characterized in that: a sealing glue solidifying molded body (7) is provided between the protective shell (1) and the inner shell (2), or a sealing glue solidifying molded body (7) is provided between the protective shell (1) and the waterproof sealing inner shell structure, or a sealing glue solidifying molded body (7) is provided between the gaps of the tolerance fitting parts, so as to form a further waterproof sealing structure or/and a reinforcing structure combined with the sealing glue, Alternatively, a seal or an elastomer is provided between the protective shell (1) and the inner shell (2), or a seal or an elastomer is provided between the protective shell (1) and the waterproof encapsulated inner shell structure, or a seal or an elastomer is provided between the gaps at the tolerance fitting parts, thereby forming a shock absorbing and buffering structure. Alternatively, the top or bottom of the protective shell (1), the bottom of the inner shell (2), or the joint between the protective shell (1) and the inner shell (2) is provided with a glue injection hole, a glue injection port or a glue injection seam, or is provided with an exhaust hole. According to claim 1, the buried solar-powered reflective road stud is characterized in that: the protective shell (1) is a cavity-shaped protective shell of an assembled structure including an open top cover (1A) with an upper opening (1r) in the middle or approximately in the middle thereof and a lower shell (1B) with an accommodating cavity (1q) opening upward, the diameter of the upper opening (1r) on the open top cover (1A) is smaller than or equal to the diameter of the upward opening of the accommodating cavity (1q), The opening top cover (1A) is provided with a plurality of fixing holes (1k) for assembling fasteners (8). The lower shell (1B) is a shell consisting of a bottom and a side surrounding portion. The side surrounding portion of the lower shell (1B) is provided with screw holes corresponding to the fixing holes (1k) on the open top cover (1A). At least the top of the inner shell (2) is made of a transparent material structure, the central part of the top is convex to form an upper convex part, and the edge of the inner shell (2) adjacent to the bottom of the upper convex part has a pressing part (2t) relatively lower than the top surface, thereby forming an inner shell with a stepped structure that is small at the top and large at the bottom, and a accommodating cavity (2q) with an opening downward is provided below the transparent top. The opening top cover (1A) is provided with at least two upper convex bodies (1t) whose inner edge parts close to the upper opening (1r) are higher and whose outer edge parts are lower but not lower than the buried reference plane. Correspondingly, other parts without the upper convex bodies (1t) form a relatively lower low position (1a) but not lower than the buried reference plane. At least one of the upper convex bodies (1t) is provided with a receiving hole groove (3d). A retroreflector (3) is fixed in the receiving hole groove (3d) by means of a mosaic structure and/or an adhesive layer (9), forming a lateral retroreflective structure in which the angle between the main direction of the retroreflected light and the buried reference plane is less than 30 degrees. The light emitting device (4) is an LED light emitting device. The open top cover (1A) is fixed to the top of the lower shell (1B) through the fixing hole (1k) by means of the fastener (8) to form a protective bottom shell of a relatively strong assembled structure, in which the waterproof encapsulated inner shell structure is locked, wherein the upper convex portion of the inner shell (2) is engaged with the upper opening (1r) of the open top cover (1A), the higher inner side of the upper convex body (1t) is closely adjacent to the outer side of the upper convex portion of the inner shell (2), and the bottom surface or bottom of the open top cover (1A) is respectively pressed onto the lower shell (1B) and the pressed portion (2t) of the inner shell (2), thereby forming an overall reinforced structure. The upper convex body (1t) on the protective shell (1) is close to the inner side surface or inner side wall of the upper opening (1r) and the outer side surface or outer side wall of the top of the inner shell (2) in a tolerance matching manner to form a combined structure in which the upper convex body (1t) acts as a protective block structure or/and the upper convex body (1t) acts as an edge protection structure; the inner shell (2) includes at least a transparent top portion where the photovoltaic device (5) is located, which is exposed from the upper opening (1r) of the open top cover (1A) and is higher than the lower area (1a) of the protective shell (1); and the whole is provided with a light emission channel in which at least one or at least one group of light-emitting devices (4) emit light from the inside to the outside through the optical structure on the transparent portion of the inner shell (2) and the space above the lower area (1a) of the open top cover (1A); and a lateral light-emitting structure is formed in which the main light-emitting direction of at least one beam of emitted light through the above-mentioned light emission channel has an angle of less than 30° with the buried reference plane. The underground solar-powered reflective road stud according to claim 1 is characterized in that: the protective shell (1) is a cavity-shaped protective shell with an accommodating cavity (1q) and an upper opening (1r) on the top of the protective shell, and the outer diameter of the upper edge of the protective shell (1) is greater than or equal to the outer diameter of the lower part of the protective shell (1). The inner shell (2) is an inner shell having at least a top portion made of a transparent material and an extension portion at the top edge to form a larger top and smaller bottom portion. The outer diameter of the top of the inner shell (2) is less than or equal to the outer diameter of the portion where the upper edge of the protective shell (1) is located. A accommodating cavity (2q) opening downward is provided below the transparent top portion. A fixing hole for assembling a fastener (8) is provided on the extension portion of the transparent top of the inner shell (2). The top of the protective shell (1) is provided with at least two upper convex bodies (1t) at the edge of the unopened portion thereof, the inner edge portion of which is higher near the upper opening (1r) and the outer edge portion of which is lower but not lower than the buried reference plane. Correspondingly, other portions without the upper convex bodies (1t) form a relatively low position (1a) but not lower than the buried reference plane, wherein at least one of the upper convex bodies (1t) is provided with a receiving hole groove (3d), and a retroreflector (3) is fixed in the receiving hole groove (3d) by means of a chimeric structure and/or an adhesive layer (9), so as to form a lateral retroreflective structure in which the main direction of the retroreflected light and the buried reference plane have an angle of less than 30 degrees. The protective shell (1) is provided with a plurality of fixing holes (1k) for assembling fasteners (8). The light emitting device (4) is an LED light emitting device. The lower part of the inner shell (2) is buried in the accommodating cavity (1q) of the protective shell (1), the extended part at the top of the inner shell (2) is pressed onto the corresponding part of the protective shell (1) from top to bottom, and the waterproof encapsulated inner shell structure is combined with the protective shell (1) through the fixing hole (1k) by means of a fastener (8) to form an integral reinforced structure. The inner side surface or inner side wall of the upper convex body (1t) on the protective shell (1) close to the upper opening (1r) and the outer side surface or outer side wall of the top of the inner shell (2) are matched with each other in a tolerance manner to form a combined structure in which the upper convex body (1t) acts as a protective block structure or/and the upper convex body (1t) acts as an edge protection structure, and the overall structure comprises a light emission channel in which at least one or at least one group of light emitting devices (4) emit light from the inside to the outside through the optical structure on the transparent part of the inner shell (2) and the upper space of the lower area (1a) of the protective shell (1), and a lateral light emitting structure is formed in which the main light emission direction of at least one beam of light emitted through the above-mentioned light emission channel has an angle of less than 30 degrees with the buried reference plane. The underground solar-powered reflective road stud according to claim 1 is characterized in that: the protective shell (1) is a cavity-shaped protective shell with an accommodating cavity (1q) and an upper opening (1r) on the top of the protective shell. The inner shell (2) is an inner shell having at least a top portion made of a transparent material structure and an extension portion at the top edge to form a larger top and smaller bottom. A accommodating cavity (2q) opening downward is provided below the transparent top. A fixing hole for assembling a fastener (8) is provided on the extension portion of the transparent top of the inner shell (2). A receiving hole groove (3d) is provided on the top edge or the high-low transition surface of the side portion of the top near the edge of the inner shell (2), and a retroreflector (3) is combined in the receiving hole groove (3d) through a plastic welding structure to form a lateral retroreflective structure in which the angle between the main direction of the retroreflected light and the buried reference plane is less than 30 degrees. The light emitting device (4) is an LED light emitting device. The lower part of the inner shell (2) is buried in the accommodating cavity (1q) of the protective shell (1), the extended part at the top of the inner shell (2) is pressed onto the corresponding part of the protective shell (1) from top to bottom, and the waterproof encapsulated inner shell structure is combined with the protective shell (1) through the fixing hole (1k) by means of a fastener (8) to form an integral reinforced structure. The inner side surface or inner side wall of the upper convex body (1t) on the protective shell (1) near the upper opening (1r) and the outer side surface or outer side wall of the top of the inner shell (2) are matched with tolerance to form a combined structure in which the upper convex body (1t) acts as a protective block structure or/and the upper convex body (1t) acts as an edge protection structure; the retroreflector (3) in the accommodating hole groove (3d) on the inner shell (2) is not lower than the buried reference plane; the top height of the inner shell (2) or the top height of the retroreflector (3) is slightly lower than or approximately equal to the height H of the upper convex body (1t); and the whole is provided with a light emission channel in which at least one or at least one group of light emitting devices (4) emit light from the inside to the outside through the optical structure on the transparent part of the inner shell (2) and the space above the low area (1a) of the protective shell (1); and a lateral light emitting structure is formed in which the main direction of light emission of at least one beam of light emitted through the above light emission channel has an angle of less than 30° with the buried reference plane. According to claim 17, a buried solar-powered reflective road stud is characterized in that: the open top cover (1A) is a ring-shaped top cover with an upper opening (1r) in the middle thereof, the open top cover (1A) is provided with an upper convex body (1t) extending from low to high inward from its outer edge, and correspondingly other parts without the upper convex body (1t) form a relatively low low position (1a) but not lower than the buried reference plane, the upper convex body (1t) is provided with a receiving hole groove (3d) with an opening facing outward or upward, a retroreflector (3) is fixed in the receiving hole groove (3d) by means of a mosaic structure and/or an adhesive layer (9), so as to form a retroreflective structure in which the angle between the main direction of the retroreflected light and the buried reference plane is less than 30°, The lower shell (1B) is a protective bottom shell that is larger at the top and smaller at the bottom, and is composed of a bottom and its side surrounding parts, with a accommodating cavity (1q) opening upward, and is composed of a ring part with a larger diameter at the upper edge and a accommodating cavity shell with a smaller diameter at the lower portion. The inner edge shape of the ring part at the upper edge of the lower shell (1B) corresponds to the outer edge shape of the opening top cover (1A), and the inner edge diameter of the ring part is greater than or equal to the outer edge diameter of the opening top cover (1A). The ring part at the upper edge of the lower shell (1B) and the accommodating cavity shell at the lower portion are connected by a stepped inner ring (1T). The side surrounding part of the lower shell (1B) is provided with a fixing hole pile (1B-z) corresponding to the fixing hole (1k) of the opening top cover (1A). At least the top of the inner shell (2) is made of a transparent material structure, the central part of the top is convex to form an upper convex part, and the edge of the inner shell (2) adjacent to the bottom of the upper convex part has a pressing part (2t) relatively lower than the top surface, thereby forming an inner shell with a stepped structure that is small at the top and large at the bottom, and a accommodating cavity (2q) with an opening downward is provided below the transparent top, and a light-emitting device (4) and a photovoltaic device (5) are provided below the top of the inner shell (2), and an electronic circuit component (6) is provided in the accommodating cavity (2q) of the inner shell (2). The waterproof encapsulated inner shell structure is embedded in the bottom surface of the accommodating cavity (1q) of the lower shell (1B) from top to bottom through tolerance fitting, the opening top cover (1A) is aligned and embedded in the upward opening of the lower shell (1B) and is fixed to the stepped inner ring (1T) of the lower shell (1B) through a fastener (8) structure to form a protective shell (1) with an assembled structure having relatively high structural strength, and the waterproof encapsulated inner shell structure is locked in the protective shell (1) to form an overall reinforced structure. The bottom surface or bottom of the opening top cover (1A) is respectively pressed onto the stepped inner ring (1T) of the lower shell (1B) and the pressing portion (2t) of the inner shell (2); the ring portion of the upper edge of the lower shell (1B) surrounds the outer edge of the opening top cover (1A); and the whole has a light emission channel in which at least one or at least one group of light emitting devices (4) emit light from the inside to the outside through the optical structure on the transparent part of the inner shell (2) and the upper space of the lower area (1a) of the protective shell (1); and a lateral light emission structure is formed in which the main direction of light emission of at least one beam of light emitted through the light emission channel has an angle of less than 30 degrees with the buried reference plane. According to claim 17, a buried solar-powered reflective road stud is characterized in that: the open top cover (1A) is a ring-shaped top cover with an upper opening (1r) in the middle thereof, the open top cover (1A) is provided with an upper convex body (1t) extending from low to high inward from its outer edge, and correspondingly other parts without the upper convex body (1t) form a relatively low low position (1a) but not lower than the buried reference plane, the upper convex body (1t) is provided with a receiving hole groove (3d) with an opening facing outward or upward, a retroreflector (3) is fixed in the receiving hole groove (3d) by means of a mosaic structure and/or an adhesive layer (9), so as to form a retroreflective structure in which the angle between the main direction of the retroreflected light and the buried reference plane is less than 30°, The lower shell (1B) is a protective bottom shell composed of a bottom and its side surrounding parts, with a receiving cavity (1q) opening upward, and the outer edge diameter at the upper edge of the receiving cavity (1q) is less than or equal to the outer edge diameter of the opening top cover (1A). The side surrounding parts of the lower shell (1B) are provided with fixing hole piles (1B-z) corresponding to the fixing holes (1k) of the opening top cover (1A). At least the top of the inner shell (2) is made of a transparent material structure, the central part of the top is convex to form an upper convex part, and the edge of the inner shell (2) adjacent to the bottom of the upper convex part has a pressing part (2t) relatively lower than the top surface, thereby forming an inner shell with a stepped structure that is small at the top and large at the bottom, and a accommodating cavity (2q) with an opening downward is provided below the transparent top, and a light-emitting device (4) and a photovoltaic device (5) are provided below the top of the inner shell (2), and an electronic circuit component (6) is provided in the accommodating cavity (2q) of the inner shell (2). The waterproof encapsulated inner shell structure is embedded in the bottom surface of the accommodating cavity (1q) of the lower shell (1B) from top to bottom through tolerance fitting, the open top cover (1A) is pressed onto the upper edge of the lower shell (1B) and fixed through a fastener (8) structure to form a protective shell (1) of an assembled structure with relatively high structural strength, and the waterproof encapsulated inner shell structure is locked in the protective shell (1) to form an overall reinforced structure. The bottom surface or bottom of the opening top cover (1A) is respectively pressed onto the upper edge of the lower shell (1B) and the pressing portion (2t) of the inner shell (2), and the whole is provided with a light emission channel in which at least one or at least one group of light emitting devices (4) emit light from the inside to the outside through the optical structure on the transparent part of the inner shell (2) and the upper space of the lower area (1a) of the protective shell (1), and a lateral light emission structure is formed in which the main direction of light emission of at least one beam of light emitted through the light emission channel has an angle of less than 30 degrees with the buried reference plane. The underground solar-powered reflective road stud according to claim 17 is characterized in that the outer edge of the opening top cover (1A) is generally circular or circular with lines cut or symmetrical polygon or symmetrical polygon with rounded corners when viewed from above. Alternatively, the opening top cover (1A) is an annular edge ring structure, and the edge of the annular edge ring is provided with prying structures (1A-q) at intervals, or the opening top cover (1A) is an opening top cover composed of two arc segments or multiple arc segments, or the opening top cover (1A) is a polygonal edge ring structure, and the edge of the polygonal edge ring is provided with prying structures (1A-q) at intervals, Alternatively, the opening top cover (1A) is provided with an upper convex body (1t) extending from the outer edge thereof inwardly with a buffer surface (1h) from low to high, and the buffer surface (1h) of the upper convex body (1t) is an inclined surface, a folded surface or a curved surface. Alternatively, the upper protrusion (1t) is composed of two or more upper protrusions arranged at intervals on the opening top cover (1A), Or the top view of the upper opening (1r) is similar to a quadrilateral with a screw hole recessed, or similar to a hexagon with a screw hole recessed, or similar to an octagon with a screw hole recessed, or similar to a cross with a screw hole recessed, or similar to a convex shape with a screw hole recessed, or similar to a Chinese character "中" with a screw hole recessed, Or the upper portion or upper edge of the lower shell (1B) is generally circular in shape when viewed from above, Alternatively, the outer peripheral portion of the lower shell (1B) is provided with a concave-convex structure (1j). According to claim 17, an underground solar-powered reflective road stud is characterized in that: a downwardly convex fixing hole pile head (1A-z) is provided below the fixing hole (1k) of the open top cover (1A), a fixing hole pile position (1B-w) corresponding to the fixing hole pile head (1A-z) of the open top cover (1A) is provided on the side surrounding portion of the lower shell (1B), and a fixing hole pile column (1B-z) supporting the fixing hole pile head (1A-z) is provided below the fixing hole pile position (1B-w). The open top cover (1A) and the lower shell (1B) are combined by means of a fastener (8) structure to form a protective shell (1) of an assembled structure with relatively high structural strength, and the waterproof encapsulated inner shell structure is locked in the protective shell (1), wherein the fixing hole pile head (1A-z) of the open top cover (1A) is pressed into the fixing hole pile position (1B-w) above the fixing hole pile column (1B-z) of the lower shell (1B). Alternatively, a downwardly convex structural thickened section (1A-s) is provided below the opening top cover (1A), a recessed section (2a) opposite to the downwardly convex structural thickened section (1A-s) of the opening top cover (1A) is provided on the pressing portion (2t) of the inner shell (2), and a recessed section (1B-a) opposite to the downwardly convex structural thickened section (1A-s) of the opening top cover (1A) is provided on the stepped inner ring (1T) of the lower shell (1B), The opening top cover (1A) is aligned and embedded in the upward opening of the lower shell (1B) and is fixed to the stepped inner ring (1T) of the lower shell (1B) through a fastener (8) structure to form an assembled protective shell (1) with relatively high structural strength. The waterproof encapsulated inner shell structure is locked in the protective shell (1), wherein the downwardly convex structural thickened section (1A-s) of the opening top cover (1A) is pressed into the recessed portion (2a) of the inner shell (2) and the recessed portion (1B-a) of the lower shell (1B). The underground solar luminous reflective road stud according to claim 17 is characterized in that: the opening top cover (1A) is provided with a long afterglow luminous coating, or the opening top cover (1A) is a mixed injection molding of a long afterglow luminous material and a liquid or molten transparent medium, Alternatively, the opening top cover (1A) is provided with a fluorescent coating, or the opening top cover (1A) is a mixed injection-molded body of a fluorescent material and a liquid or molten transparent medium. According to claim 17, an underground solar-powered reflective road stud is characterized in that: a sealing glue solidifying molded body (7) is provided between the opening top cover (1A) and the inner shell (2), or a sealing glue solidifying molded body (7) is provided between the opening top cover (1A) and the lower shell (1B), or a sealing glue solidifying molded body (7) is provided between the lower shell (1B) and the inner shell (2), or a sealing glue solidifying molded body (7) is provided between the opening top cover (1A) and the waterproof sealing inner shell structure, or a sealing glue solidifying molded body (7) is provided between the lower shell (1B) and the waterproof sealing inner shell structure, or a sealing glue solidifying molded body (7) is provided between the gaps of the tolerance fitting parts; a further waterproof sealing structure and/or a reinforcement structure are formed. According to claim 17, an underground solar-powered reflective road stud is characterized in that: the opening top cover (1A) is an annular edge ring structure, and the front and rear sides of the annular edge ring are symmetrically provided with upper convex bodies (1t) extending from low to high with a buffer surface (1h) from its outer edge inward, and the left and right sides of the annular edge ring are symmetrically provided with upper convex bodies (1t) extending from low to high with a buffer surface (1h) from its outer edge inward, and four low positions (1a) are formed between the adjacent front, rear, left and right upper convex bodies (1t), and light emission channels for the light-emitting device (4) to emit light in both directions are formed on the side of the exposed part of the inner shell (2) and the upper space of the low positions (1a) on the left and right sides of the front and rear upper convex bodies (1t) of the opening top cover (1A), and the inner shell (2) is provided with a light-emitting device (4) that emits light along the above-mentioned light emission channels. The buffer surfaces (1h) of the upper convex bodies (1t) on the front and rear sides are respectively provided with accommodating holes (3d), and the accommodating holes (3d) on the front and rear sides are respectively provided with adhesive layers (9). The accommodating holes (3d) are bonded to the retroreflective bodies (3) through the adhesive layers (9) to form a lateral retroreflective structure in which the angle between the main direction of the retroreflected light and the buried reference plane is less than 30 degrees, thereby forming an overall structure that reflects light in both directions, and at least provides LEDs in both directions, in both directions. Wherein, a fixing hole (1k) is provided on the low area (1a) between the adjacent upper convex bodies (1t), or/and a fixing hole (1k) is provided on the upper convex bodies (1t) on the left and right sides; or The open top cover (1A) is an annular edge ring structure, and upper convex bodies (1t) are symmetrically provided on the front and rear sides of the annular edge ring, extending from low to high with a buffer surface (1h) from the outer edge to the inside, and upper convex bodies (1t) are symmetrically provided on the left and right sides of the annular edge ring, extending from low to high with a buffer surface (1h) from the outer edge to the inside, respectively. Four low areas (1a) are formed between the adjacent front, rear, left and right upper convex bodies (1t), and light emission channels for the light emitting device (4) to emit light in both directions are formed on the side of the exposed part of the inner shell (2) and on the left and right sides of the low areas (1a) of the front and rear upper convex bodies (1t) of the open top cover (1A), respectively. The inner shell (2) is provided with a light emitting device (4) that emits light along the light emission channels. The buffer surfaces (1h) of the upper convex bodies (1t) on the front, rear, left and right sides are respectively provided with accommodating holes (3d), and the accommodating holes (3d) on the front, rear, left and right sides are respectively provided with adhesive layers (9). The accommodating holes (3d) are bonded to the retroreflective bodies (3) through the adhesive layers (9) to form a lateral retroreflective structure in which the angle between the main direction of the retroreflected light and the buried reference plane is less than 30 degrees, thereby forming an overall structure that reflects light on four sides, and is provided with LEDs in at least the front and rear directions for bidirectional lighting. Wherein, a fixing hole (1k) is provided on the low position (1a) between the adjacent upper convex bodies (1t); or the open top cover (1A) is an annular edge ring structure, and upper convex bodies (1t) are symmetrically provided on the front and rear sides of the annular edge ring from low to high with a buffer surface (1h) from its outer edge to the inside, and upper convex bodies (1t) are symmetrically provided on the left and right sides of the annular edge ring from low to high with a buffer surface (1h) from its outer edge to the inside, respectively. Four low positions (1a) are formed between the adjacent upper convex bodies (1t), and light emission channels for the light emitting device (4) to emit light in both directions are formed on the side of the exposed part of the inner shell (2) and on the left and right sides of the low positions (1a) of the front and rear upper convex bodies (1t) of the open top cover (1A), and the inner shell (2) is provided with a light emitting device (4) that emits light along the above-mentioned light emission channels. The buffer surfaces (1h) of the upper convex bodies (1t) on the front, rear, left and right sides are respectively provided with accommodating holes (3d); the accommodating holes (3d) on the front and rear sides are respectively provided with adhesive layers (9); the accommodating holes (3d) are bonded with retroreflectors (3) through the adhesive layers (9), forming a lateral retroreflective structure in which the angle between the main direction of the retroreflected light and the buried reference plane is less than 30°; the accommodating holes (3d) on the left and right sides are respectively provided with long afterglow luminous bodies (10), thereby forming an overall structure with front and rear bidirectional reflection, bidirectional lighting with LEDs at least provided in the front and rear bidirectional directions, and long afterglow lighting on the left and right sides. Wherein, a fixing hole (1k) is provided on the low area (1a) between the adjacent upper protrusions (1t). or The open top cover (1A) is an annular edge ring structure, and upper convex bodies (1t) are symmetrically provided on the left and right sides of the annular edge ring, extending from low to high with a buffer surface (1h) from its outer edge inward, so that two low areas (1a) are formed on the front and rear sides of the annular edge ring structure, and light emission channels for the light emitting device (4) to emit light in both directions are formed on the side of the exposed part of the inner shell (2) and the space above the low areas (1a) on the front and rear sides of the open top cover (1A), and the inner shell (2) is provided with a light emitting device (4) that emits light along the above-mentioned light emission channels. The buffer surfaces (1h) of the upper convex bodies (1t) on the left and right sides are respectively provided with accommodating holes (3d), and the accommodating holes (3d) are respectively provided with adhesive layers (9). The accommodating holes (3d) are bonded to the retroreflective bodies (3) through the adhesive layers (9), so as to form a lateral retroreflective structure in which the angle between the main direction of the retroreflected light and the buried reference plane is less than 30 degrees, thereby forming an overall structure that reflects light in both directions on the left and right sides and is provided with LEDs in both directions at least in the front and rear directions. Wherein, fixing holes (1k) are provided on the lower areas (1a) on the front and rear sides of the opening top cover (1A), or/and fixing holes (1k) are provided on the upper protrusions (1t) on the left and right sides.