CN118581826B - A rockfall protection net monitoring device capable of sound and light alarm - Google Patents

Abstract

The embodiment of the present application provides a rockfall protection net monitoring device capable of sound and light alarm, and relates to the field of mountain rockfall protection technology. A rockfall protection net monitoring device capable of sound and light alarm comprises a bottom plate, a rotating plate, a protection net body, a driving adjustment component and an unfolding transmission component, wherein the driving adjustment component comprises a rotating shaft, the rotating shaft is rotatably mounted in the middle of the bottom plate, a fixed sleeve in the middle of the rotating shaft is provided with a worm gear, one side of the worm gear is meshedly connected with a worm, when the unfolding transmission component is driven to move by the driving adjustment component, the rotating plates on both sides will also synchronously open and close to unfold the protection net body, so that the two top holding plates are held between the two protruding parts of the mountain slope to complete the overall installation of the device, and the two rotating plates will also open to the corresponding angle between the two protruding parts on the mountain slope, and then cooperate with the protection net body, the vibration sensor and the sound and light alarm to protect and warn the rockfall in the area.

Description

A rockfall protection net monitoring device capable of sound and light alarm

Technical Field

The present application relates to the technical field of mountain rockfall protection, and in particular to a rockfall protection net monitoring device capable of sound and light alarm.

Background Art

Rockfall is a common natural disaster, which refers to the phenomenon that rocks from high places fall to the ground or low-lying areas under the action of gravity. Rockfall may cause disasters if it occurs within the scope of human activities. Rockfall is the simplest and most common form of landslide. Any mountain will continue to experience rockfalls of varying sizes under the influence of gravity, wind or other factors.

The problem with the above solution is that the mountain is affected by the soil structure. When the soil structure strength decreases, the mountain will loosen and collapse locally, and the falling rocks will pose a danger to people nearby. The existing rockfall protection net needs to be installed on the mountain slope using fixings, and the installation and disassembly methods are relatively cumbersome and complicated.

Summary of the invention

The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a rockfall protection net monitoring device with sound and light alarm. When the unfolding transmission component is driven by the driving and adjusting component to move, the rotating plates on both sides will also open and close synchronously to unfold the protection net body, so that the two top holding plates are supported between the two protruding parts of the mountain slope to complete the overall installation of the device. At the same time, the two rotating plates will also open to the corresponding angle between the two protruding parts on the mountain slope, and then cooperate with the protection net body, vibration sensor and sound and light alarm to protect and warn of rockfall in the area.

The present application also proposes a rockfall protection net monitoring device with sound and light alarm, including a base plate, a rotating plate, a protection net body, a drive adjustment component and an unfolding transmission component, the drive adjustment component including a rotating shaft, the rotating shaft is rotatably installed in the middle of the base plate, the middle of the rotating shaft is fixedly sleeved with a worm gear, one side of the worm gear is meshedly connected with a worm, one end of the worm gear is fixedly connected with a motor output shaft, the motor is fixedly installed on the lower surface of the base plate, the unfolding transmission component includes two connecting rods arranged opposite to each other, each of the connecting rods is slidably connected with a guide slot, the two guide slots are arranged on the front and rear sides of the lower surface of the base plate, one end of each sliding rod is fixedly connected with a mounting plate, and a top holding plate is fixedly installed on one side surface of each mounting plate.

In the present application, a protective net installation clip is fixedly installed on the inner surface of each rotating plate, and a protective net body is installed between the two protective net installation clips.

In the present application, a sound and light alarm is fixedly mounted on the surface of one side of each rotating plate, each of the sound and light alarm is electrically connected to a corresponding vibration sensor, and each of the protective net bodies is mounted on the protective net body.

In the present application, a protective plate is fixedly installed at the bottom of the base plate.

In the present application, a plurality of reinforcement rods are fixedly mounted on the outer surface of the protective plate.

In the present application, each of the reinforcing rods is a conical structure.

In the present application, a plurality of evenly distributed water guide grooves are provided on the outer surface of the protective plate.

In the present application, mounting sheet metals are fixedly mounted on both sides of the surfaces at both ends of the bottom plate, and a rotating plate is rotatably mounted between the two mounting sheet metals located at the same end.

In the present application, a connection groove is provided on one side of the bottom surface of each rotating plate, and the inner walls on both sides of each connecting groove are rotatably connected to the surfaces on both sides of the corresponding connecting rod.

In the present application, a driving gear is fixedly sleeved at the bottom end of the rotating shaft, and a first tooth plate is provided on the relative inner surfaces of the two sliding rods, and the two first tooth plates are meshed with the driving gear. Each sliding rod is slidably connected to a corresponding guide rail, and the two guide rails are fixedly installed on the front and rear sides of the bottom surface of the base plate. A threaded sleeve is fixedly connected to the top end of the rotating shaft, and a threaded rod is connected to the inner thread of the threaded sleeve. One end of the threaded rod is fixedly connected to a top mounting plate, and one side edge of the protective net body is installed on the top mounting plate. One end of a limiting telescopic rod is fixedly connected to both sides of the bottom surface of the top mounting plate, and the other end of each limiting telescopic rod is fixedly connected to the upper surface of the base plate, and a second tooth plate is also provided on the outer surface of each sliding rod.

In the present application, each of the second tooth plates is meshed with a transmission gear on one side, and each of the transmission gears is rotatably installed on the front and rear sides of the bottom surface of the base plate. Each of the transmission gears is meshed with a third tooth plate on the other side. The two third tooth plates are arranged on the inner surfaces of the corresponding connecting rods. A number of hydraulic rods are arranged between the rotating plate and the mounting plate on the same side. Both ends of each hydraulic rod are rotatably connected to an articulated seat, and each of the articulated seats is respectively fixedly installed on the corresponding rotating plate and the opposite side surface of the mounting plate. Grooves are provided at both ends of the bottom surface of each mounting plate, and wheels are rotatably installed between the inner walls on both sides of each groove.

The beneficial effect of the present application is that when the unfolding transmission assembly is driven to move by the driving and adjusting assembly, the rotating plates on both sides will also synchronously open and close to unfold the protective net body, so that the two top holding plates are supported between the two protrusions on the mountain slope to complete the overall installation of the device. At the same time, the two rotating plates will also open to the corresponding angle between the two protrusions on the mountain slope, and then cooperate with the protective net body, vibration sensor and sound and light alarm to protect and warn of falling rocks in the area.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

FIG1 is a schematic perspective view of the overall structure according to an embodiment of the present application;

FIG2 is a schematic perspective view of the overall structure of another side according to an embodiment of the present application;

FIG3 is a schematic three-dimensional diagram of the overall internal structure according to an embodiment of the present application;

FIG4 is a schematic three-dimensional diagram of the connection structure between the bottom plate and the rotating plate according to an embodiment of the present application;

FIG5 is a schematic three-dimensional diagram of the connection structure between the rotating plate and the unfolding transmission assembly according to an embodiment of the present application;

FIG6 is a schematic perspective view of the overall structure of a drive adjustment assembly according to an embodiment of the present application;

7 is a schematic three-dimensional diagram of the connection structure of the drive adjustment assembly, the deployment transmission assembly, the bottom plate and the rotating plate according to an embodiment of the present application;

FIG8 is a schematic three-dimensional diagram of the connection structure between the drive adjustment assembly and the deployment transmission assembly according to an embodiment of the present application.

Icons: 1. Base plate; 2. Mounting sheet metal; 3. Rotating plate; 4. Protective net mounting clip; 5. Protective net body; 6. Vibration sensor; 7. Sound and light alarm; 8. Drive adjustment assembly; 9. Unfolding transmission assembly; 10. Protective plate; 11. Reinforcement rod; 12. Connecting groove; 801. Rotating shaft; 802. Sliding rod; 803. First tooth plate; 804. Guide rail; 805. Worm gear; 806. Worm; 807. Motor; 808. Threaded sleeve; 809. Threaded rod; 810. Top mounting plate; 811. Limit telescopic rod; 812. Driving gear; 813. Second tooth plate; 901. Connecting rod; 902. Transmission gear; 903. Hydraulic rod; 904. Articulated seat; 905. Mounting plate; 906. Wheel; 907. Top holding plate; 908. Guide slide groove; 909. Third tooth plate.

DETAILED DESCRIPTION

The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

In order to make the purpose, technical solutions and advantages of the implementation methods of this application clearer, the technical solutions in the implementation methods of this application will be clearly and completely described below in conjunction with the drawings in the implementation methods of this application. Obviously, the described implementation methods are part of the implementation methods of this application, not all of the implementation methods. Based on the implementation methods in this application, all other implementation methods obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

A rockfall protection net monitoring device capable of sound and light alarm according to an embodiment of the first aspect of the present application is described below with reference to the accompanying drawings.

As shown in Figures 1 to 8, a rockfall protection net monitoring device with sound and light alarm includes a base plate 1, a rotating plate 3, a protection net body 5, a drive adjustment component 8 and an unfolding transmission component 9, wherein the drive adjustment component 8 includes a rotating shaft 801, which is rotatably installed in the middle of the base plate 1, and a worm gear 805 is fixedly sleeved in the middle of the rotating shaft 801. A worm 806 is meshingly connected to one side of the worm gear 805, and one end of the worm 806 is fixedly connected to the output shaft of a motor 807, and the motor 807 is fixedly installed on the lower surface of the base plate 1. The unfolding transmission component 9 includes two connecting rods 901 arranged opposite to each other, each of the connecting rods 901 is slidably connected to a guide slot 908, and the two guide slots 908 are arranged on the front and rear sides of the lower surface of the base plate 1, one end of each sliding rod 802 is fixedly connected to a mounting plate 905, and a top holding plate 907 is fixedly installed on the surface of one side of each mounting plate 905.

According to some embodiments of the present application, as shown in Figures 1 to 5, a protective net mounting clip 4 is fixedly installed on the inner surface of each rotating plate 3, and a protective net body 5 is installed between the two protective net mounting clips 4. The protective net body 5 can be detachably installed between the rotating plates 3 on both sides through the protective net mounting clips 4, which can facilitate the installation and disassembly of the protective net body 5 to ensure that the protective net body 5 is replaced before it ages after long-term use and its overall structural strength decreases, reducing its protection capability.

Furthermore, a sound and light alarm 7 is fixedly installed on the surface of one side of each rotating plate 3, and each of the sound and light alarm 7 is electrically connected to a corresponding vibration sensor 6. Each of the protective net bodies 5 is installed on the protective net body 5. When a rock falls on the protective net body 5, the protective net body 5 vibrates. After detecting the vibration, the vibration sensor 6 activates the sound and light alarm 7 through an electrical signal to send out a sound and light warning to the nearby area to disperse nearby personnel, thereby improving the safety of protection.

Furthermore, a protective plate 10 is fixedly installed at the bottom of the base plate 1. By setting the protective plate 10, the driving adjustment component 8 and the unfolding transmission component 9 installed between it and the base plate 1 can be protected, thereby preventing foreign objects from entering the driving adjustment component 8 and the unfolding transmission component 9 in a complex mountain environment and affecting the normal working effect, thereby improving stability during use.

Furthermore, a plurality of reinforcing rods 11 are fixedly mounted on the outer surface of the protective plate 10. When the device is installed on the mountain as a whole, the reinforcing rods 11 can be inserted into the mountain soil to assist in supporting and limiting the device, thereby improving the stability and firmness of the device installation.

Furthermore, each of the reinforcement rods 11 is a conical structure, which can make it easier for the reinforcement rod 11 to be inserted into the mountain soil.

Furthermore, by setting a water guide groove on the surface of the side of the reinforcement rod 11 that contacts the mountain, the moisture between it and the mountain can be effectively discharged and ventilation can be maintained, thereby avoiding corrosion to the reinforcement rod 11 caused by being in a humid environment for a long time, and relatively improving the service life of the reinforcement rod 11.

Furthermore, mounting sheet metals 2 are fixedly installed on both sides of the two end surfaces of the base plate 1, and a rotating plate 3 is rotatably installed between the two mounting sheet metals 2 located at the same end. When in use, the driving adjustment component 8 and the unfolding transmission component 9 work in conjunction to drive the rotating plates 3 on both sides to perform synchronous opening and closing actions relative to the base plate 1, thereby unfolding the protective net body 5 to protect against falling rocks near the installation position of the device.

Furthermore, a connecting groove 12 is provided on one side of the bottom surface of each rotating plate 3, and the inner walls on both sides of each connecting groove 12 are rotatably connected to the surfaces on both sides of the corresponding connecting rod 901. When the unfolding transmission component 9 is driven to move by the driving adjustment component 8, the rotating plates 3 on both sides will also synchronously open and close to unfold the protective net body 5, so that the two supporting plates 907 are supported between the two protrusions on the mountain slope to complete the overall installation of the device. At the same time, the two rotating plates 3 will also open to the corresponding angle between the two protrusions on the mountain slope, and then cooperate with the protective net body 5, the vibration sensor 6 and the sound and light alarm 7 to protect and warn of falling rocks in the area.

According to some embodiments of the present application, as shown in Figures 6 to 8, the bottom end of the rotating shaft 801 is fixedly sleeved with a driving gear 812, and the relative inner surfaces of the two sliding rods 802 are provided with a first tooth plate 803, and the two first tooth plates 803 are meshed and connected with the driving gear 812, and each sliding rod 802 is slidably connected to a corresponding guide rail 804, and the two guide rails 804 are fixedly installed on the front and rear sides of the bottom surface of the bottom plate 1, and the top of the rotating shaft 801 is fixedly connected to a threaded sleeve 808, and the threaded sleeve 808 is internally threaded with a threaded rod 809, and one end of the threaded rod 809 is fixedly connected to a top mounting plate 810, and the edge of one side of the protective net body 5 is installed On the top mounting plate 810, both sides of the bottom surface of the top mounting plate 810 are fixedly connected to one end of a limited telescopic rod 811, and the other end of each limited telescopic rod 811 is fixedly connected to the upper surface of the bottom plate 1. A second tooth plate 813 is also provided on the outer surface of each sliding rod 802. The starting motor 807 drives the worm 806 to rotate, and the engagement relationship between the worm 806 and the worm wheel 805 can also drive the rotating shaft 801 to rotate, and the driving gear 812 also rotates synchronously. Because the sliding rods 802 on both sides are meshed and connected with the driving gear 812 at the same time through the first tooth plate 803, and are slidably connected with the guide rail 804, when the driving gear 812 rotates, it will bring The two sliding rods 802 are driven to perform synchronous reverse sliding displacement, and the two sliding rods 802 are respectively meshed and connected with the corresponding transmission gear 902 through the second tooth plate 813 set on the other side surface, and the connecting rod 901 is also meshed and connected with the corresponding transmission gear 902 through the third tooth plate 909. Therefore, when the sliding rod 802 on one side slides, the connecting rod 901 on the same side will slide in the guide groove 908 in the opposite direction. Therefore, the two connecting rods 901 also perform synchronous reverse displacement, thereby driving the two holding plates 907 to move to both sides and hold them on the two protruding parts of the mountain slope to complete the installation of the entire device, while ensuring the relative stability of the installation. The device not only ensures firmness but also greatly improves the convenience of installation. The overall installation of the device can be completed without using other tools. It is very convenient to install when temporarily protecting a part of a mountain profile from falling rocks. At the same time, when the rotating shaft 801 rotates, the threaded sleeve 808 will also rotate synchronously. The top mounting plate 810 is fixedly connected to one end of the threaded rod 809 and is restricted by the limiting telescopic rods 811 on both sides. Therefore, when the threaded sleeve 808 rotates to drive the threaded rod 809 to independently extend and retract, the top mounting plate 810 will also change its distance relative to the bottom plate 1, thereby driving one side edge of the protective net body 5 to extend or retract outward, so as to adjust the protection area of the protective net body 5.

Furthermore, each of the second tooth plates 813 is meshedly connected with a transmission gear 902 on one side, and each of the transmission gears 902 is rotatably installed on the front and rear sides of the bottom surface of the base plate 1. Each of the transmission gears 902 is meshedly connected with a third tooth plate 909 on the other side. Two of the third tooth plates 909 are arranged on the inner surfaces of the corresponding connecting rods 901. A plurality of hydraulic rods 903 are arranged between the rotating plate 3 and the mounting plate 905 on the same side. Both ends of each of the hydraulic rods 903 are rotatably connected with an articulated seat 904. Each of the articulated seats 904 are respectively fixedly installed on the corresponding rotating plate 3 and the opposite side surface of the mounting plate 905. Grooves are provided at both ends of the bottom surface of each mounting plate 905, and wheels 906 are rotatably installed between the inner walls on both sides of each groove. Since the connecting rod 901 is rotatably connected to the inner walls on both sides of the connecting groove 12 arranged on the bottom of the corresponding rotating plate 3, When the two connecting rods 901 are driven by the driving and adjusting component 8 to slide in opposite directions synchronously, the two rotating plates 3 will be driven to rotate synchronously to complete the opening and closing action, thereby opening the protective net body 5 into a fan-shaped structure, and cooperating with the stretching of the top mounting plate 810, the protective net body 5 is unfolded as a whole in a three-point stretching manner to block and protect against falling rocks on the mountain slope, so as to ensure relatively reliable blocking ability. The rotating plate 3 and the mounting plate 905 on the same side are connected by a hydraulic rod 903, so as to assist in supporting and limiting the rotating plate 3, so as to ensure that the unfolded area of the protective net body 5 will not be affected by external forces to improve stability. Wheels 906 are arranged at the bottom of each mounting plate 905 to reduce the friction generated by the bottom contacting the mountain when the two mounting plates 905 move to both sides, thereby reducing the wear of the mounting plate 905 during installation to improve the overall service life of the device.

The working principle of this embodiment is as follows: first, the motor 807 is started to drive the worm 806 to rotate, and the worm 806 and the worm wheel 805 are meshed and connected to each other, so that the rotating shaft 801 can be driven to rotate, and the driving gear 812 also rotates synchronously. Because the sliding rods 802 on both sides are meshed and connected with the driving gear 812 at the same time through the first tooth plate 803, and are also slidably connected with the guide rail 804, when the driving gear 812 rotates, it will drive the two sliding rods 802 to perform synchronous reverse sliding displacement, and the two sliding rods 802 are respectively meshed and connected with the corresponding transmission gear 902 through the second tooth plate 813 provided on the other side surface, and at the same time, the connecting rod 901 is also meshed and connected with the corresponding transmission gear 902 through the third tooth plate 909, so when one side When the sliding rod 802 slides, the connecting rod 901 on the same side will slide in the guide groove 908 in the opposite direction, so the two connecting rods 901 also perform synchronous reverse displacement, thereby driving the two top holding plates 907 to move to both sides and hold them on the two protruding parts of the mountain slope to complete the installation of the entire device, while ensuring the relative stability and firmness of the installation, the convenience of installation is greatly improved, and the installation of the entire device can be completed without using other tools. It has high installation convenience when temporarily protecting a part of the mountain profile from falling rocks. At the same time, when the rotating shaft 801 rotates, the threaded sleeve 808 will also rotate synchronously, and the top mounting plate 810 is fixedly connected to one end of the threaded rod 809 and is supported by two The side limit telescopic rod 811 is limited, so when the threaded sleeve 808 rotates to drive the threaded rod 809 to retract independently, the top mounting plate 810 will also change its distance relative to the bottom plate 1, thereby driving the edge of one side of the protective net body 5 to extend or retract outward, and the protective area of the protective net body 5 can be adjusted. Because the connecting rod 901 is rotatably connected to the inner walls of the connecting groove 12 on both sides arranged at the bottom of the corresponding rotating plate 3, when the two connecting rods 901 are driven by the driving adjustment component 8 to perform synchronous reverse sliding displacement, the two rotating plates 3 will be driven to rotate synchronously to complete the opening and closing action, thereby opening the protective net body 5 into a fan-shaped structure, cooperating with the stretching of the top mounting plate 810, so that the protective net body 5 is unfolded as a whole to the mountain slope in a three-point stretching manner. The falling rocks can be blocked and protected to ensure relatively reliable blocking ability. The rotating plate 3 and the mounting plate 905 on the same side are connected by a hydraulic rod 903, so as to assist in supporting and limiting the rotating plate 3, so as to ensure that the unfolded area of the protection net body 5 will not be affected by external forces to improve stability. Wheels 906 are arranged at the bottom of each mounting plate 905 to reduce the friction generated by the bottom contacting the mountain when the two mounting plates 905 move to both sides, thereby reducing the wear of the mounting plates 905 during the installation process to improve the service life of the entire device. When falling rocks fall on the protection net body 5 on the slope of the mountain, the vibration sensor 6 detects a vibration signal exceeding the preset value and converts it into an electrical signal to activate the sound and light alarm 7 to issue an early warning to the nearby area and disperse nearby personnel in time.

It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

The above description is only an embodiment of the present application and is not intended to limit the scope of protection of the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims (9)

1. A rockfall protection net monitoring device capable of sound and light alarm, comprising a base plate (1), a rotating plate (3), a protection net body (5), a drive adjustment component (8) and an unfolding transmission component (9), characterized in that: The drive adjustment component (8) comprises a rotating shaft (801), the rotating shaft (801) is rotatably mounted in the middle of the base plate (1), a worm wheel (805) is fixedly sleeved in the middle of the rotating shaft (801), one side of the worm wheel (805) is meshingly connected with a worm (806), one end of the worm (806) is fixedly connected with an output shaft of a motor (807), the motor (807) is fixedly mounted on the lower surface of the base plate (1), a driving gear (812) is fixedly sleeved at the bottom end of the rotating shaft (801), the opposite inner surfaces of the two sliding rods (802) are each provided with a first tooth plate (803), the two first tooth plates (803) are both meshingly connected with the driving gear (812), and each sliding rod (802) is slidably connected with a corresponding guide gear (812). A guide rail (804), two guide rails (804) are fixedly mounted on the front and rear sides of the bottom surface of the bottom plate (1), a threaded sleeve (808) is fixedly connected to the top of the rotating shaft (801), a threaded rod (809) is internally threadedly connected to the threaded sleeve (808), one end of the threaded rod (809) is fixedly connected to a top mounting plate (810), one side edge of the protective net body (5) is mounted on the top mounting plate (810), both sides of the bottom surface of the top mounting plate (810) are fixedly connected to one end of a limited telescopic rod (811), the other end of each limited telescopic rod (811) is fixedly connected to the upper surface of the bottom plate (1), and a second tooth plate (813) is also provided on the outer surface of each sliding rod (802); The unfolding transmission assembly (9) comprises two connecting rods (901) arranged opposite to each other, each connecting rod (901) being slidably connected to a guide slot (908), the two guide slots (908) being arranged on the front and rear sides of the lower surface of the base plate (1), one end of each sliding rod (802) being fixedly connected to a mounting plate (905), one side surface of each mounting plate (905) being fixedly mounted with a top holding plate (907), one side of each second tooth plate (813) being meshingly connected to a transmission gear (902), each transmission gear (902) being rotatably mounted on the front and rear sides of the bottom surface of the base plate (1), and each transmission gear (902) being rotatably mounted on the front and rear sides of the bottom surface of the base plate (1). 02) and the other side are meshedly connected with a third tooth plate (909), and the two third tooth plates (909) are arranged on the inner surface of the corresponding connecting rod (901), and a plurality of hydraulic rods (903) are arranged between the rotating plate (3) and the mounting plate (905) on the same side, and both ends of each hydraulic rod (903) are rotatably connected with an articulated seat (904), and each articulated seat (904) is respectively fixedly installed on the corresponding rotating plate (3) and the opposite side surface of the mounting plate (905), and each mounting plate (905) has grooves at both ends of the bottom surface, and wheels (906) are rotatably installed between the inner walls on both sides of each groove. 2. A rockfall protection net monitoring device with sound and light alarm according to claim 1, characterized in that a protection net mounting clip (4) is fixedly mounted on the inner surface of each rotating plate (3), and a protection net body (5) is mounted between two protection net mounting clips (4). 3. A rockfall protection net monitoring device with sound and light alarm according to claim 1, characterized in that a sound and light alarm (7) is fixedly installed on the surface of one side of each rotating plate (3), each sound and light alarm (7) is electrically connected to a corresponding vibration sensor (6), and each protection net body (5) is installed on the protection net body (5). 4. A rockfall protection net monitoring device capable of sound and light alarm according to claim 1, characterized in that a protection plate (10) is fixedly mounted on the bottom of the base plate (1). 5. A rockfall protection net monitoring device capable of sound and light alarm according to claim 4, characterized in that a plurality of reinforcement rods (11) are fixedly mounted on the outer surface of the protection plate (10). 6. A rockfall protection net monitoring device capable of sound and light alarm according to claim 5, characterized in that each of the reinforcement rods (11) is a conical structure. 7. A rockfall protection net monitoring device capable of sound and light alarm according to claim 4, characterized in that mounting sheet metals (2) are fixedly mounted on both sides of the surfaces at both ends of the bottom plate (1). 8. A rockfall protection net monitoring device capable of sound and light alarm according to claim 7, characterized in that a rotating plate (3) is rotatably mounted between two mounting sheet metals (2) located at the same end. 9. A rockfall protection net monitoring device with sound and light alarm according to claim 1, characterized in that a connecting groove (12) is provided on one side of the bottom surface of each rotating plate (3), and the inner walls on both sides of each connecting groove (12) are rotatably connected to the surfaces on both sides of the corresponding connecting rod (901).