WO2021232291A1 - Lens adjustment mechanism - Google Patents

Abstract

A lens adjustment mechanism, comprising a housing (1), a lens module (2) disposed within the housing (1), a rotary shaft (3) for driving the lens module (2) to rotate, and fixing members (4) for positioning the rotary shaft (3) on an inner wall of the housing (1); and an image capture hole (121) through which the lens module (2) can perform image capturing is provided on the housing (1), the fixing members (4) are fixed to an inner wall of the housing (1), and the rotary shaft (3) rotates relative to the fixing member (4), one end of the rotary shaft (3) is fixed to the lens module (2), and the other end of the rotary shaft (3) is disposed extending out of the housing (1). In the lens adjustment mechanism provided in the present application, by means of an external adjustment member rotating the rotary shaft (3), the rotary shaft (3) drives the lens module (2) which is fixed thereto to rotate; in addition, providing only the fixing members (4) and the rotary shaft (3) in the lens adjustment mechanism may achieve angle adjustment of the lens module (2), the structure is simple, and costs of the lens adjustment mechanism can be reduced.

Description

Lens adjustment mechanism Technical field

This application belongs to the technical field of vehicle-mounted cameras, and more specifically, relates to a lens adjustment mechanism.

Background technique

The on-board camera can record driving conditions in real time, and can provide clear and complete video material for traffic accident handling. Most cars are equipped with on-board cameras, but there are many types of cars, from small cars to large trucks, the angle of the front windshield of the car is different, in order to ensure that the camera is installed on the front windshield, while meeting the level of the lens module For forward requirements, the camera angle of the on-board camera needs to be adjusted. The current lens adjusting mechanism has a complicated structure and high cost.

technical problem

The purpose of this application is to provide a lens adjustment mechanism, which aims to solve the technical problems of complex structure and high cost of the lens adjustment mechanism in the prior art.

Technical solutions

The present application provides a lens adjustment mechanism, including a housing, a lens module arranged in the housing, a rotating shaft for driving the lens module to rotate, and a fixing member for positioning the rotating shaft on the inner wall of the housing, The housing is provided with a shooting hole for shooting by the lens module, the fixing part is fixed to the inner wall of the housing, the rotating shaft rotates relative to the fixing part, and one end of the rotating shaft is fixed to the lens module, The other end of the rotating shaft protrudes from the housing.

In an embodiment, the end of the rotating shaft extending out of the housing is provided with an opening groove for the external adjusting member to extend in and to rotate the rotating shaft.

In one embodiment, one end of the rotating shaft that protrudes from the housing has a matching portion for extending into the inner cavity of the external adjusting member, and the cross section of the matching portion is polygonal.

In one embodiment, the rotating shaft and the lens module are fixedly connected by a first locking member; one end of the rotating shaft is provided with a first connecting hole, and the surface of the lens module is convexly provided with a connecting portion, The connecting portion is provided with a second connecting hole, and the first locking member passes through the first connecting hole and the second connecting hole.

In one embodiment, the fixing member includes a positioning portion and locking portions respectively connected to two ends of the positioning portion, and both of the locking portions are fixed to the inner wall of the housing.

In one embodiment, the locking portion is fixed to the inner wall of the housing by a second locking member; the locking portion is provided with a third connecting hole, and the inner wall of the housing is provided with a fourth connecting hole, so The second locking member passes through the third connecting hole and the fourth connecting hole.

In an embodiment, the inner wall of the housing is provided with a card slot, and the locking part is inserted into the card slot to be arranged.

In one embodiment, the positioning portion is arc-shaped, and the rotating shaft is sandwiched between the positioning portion and the inner wall of the housing.

In one embodiment, the housing includes a first housing and a second housing covering the first housing, and the lens module, the fixing member and the rotating shaft are all connected to the The first housing and the second housing are provided with the shooting hole.

In one embodiment, the first housing is provided with a first arc positioning portion, a positioning post is protrudingly provided on a side of the lens module away from the fixing member, and the positioning post is provided on the first In the arc positioning part.

In one embodiment, the inner wall of the first housing is provided with a positioning platform, the top of the positioning platform is provided with the first arc positioning portion, and the side of the positioning platform has a positioning platform for positioning the lens module The first positioning surface of the side surface; the first housing further has a second positioning surface for positioning the side surface of the fixing member; the first positioning surface and the second positioning surface are parallel to each other.

In one embodiment, the first housing is further provided with a second arc positioning portion, and an end of the rotating shaft away from the lens module is provided in the second arc positioning portion.

In one embodiment, the number of the lens module, the rotating shaft, and the fixing part are all two, and the two lens modules, the two rotating shafts, and the two fixing parts are all set at a predetermined value. The symmetry axis is arranged symmetrically, and the ends of the two rotating shafts away from the predetermined symmetry axis are respectively arranged to extend out of opposite sides of the housing.

Beneficial effect

The beneficial effect of the lens adjustment mechanism provided by the present application is that the lens adjustment mechanism of the present application includes a housing, a lens module, a rotating shaft, and a fixing part. The fixing part is used to fix the rotating shaft inside the housing and the rotating shaft can rotate relative to the fixing part. One end of the shaft extends out of the housing, and the other end of the rotating shaft is fixedly connected with the lens module. When the shooting angle of the lens module needs to be adjusted, the rotating shaft is rotated by the external adjusting member, and the rotating shaft drives the lens module fixed to it to rotate, so as to realize the function of adjusting the shooting angle of the lens module. The lens adjustment mechanism can realize the angle adjustment of the lens module only by providing a fixing part and a rotating shaft, has a simple structure, and can reduce the cost of the lens adjustment mechanism.

Description of the drawings

In order to more clearly describe the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only for the present application. For some embodiments, for those of ordinary skill in the art, other drawings may be obtained based on these drawings without creative labor.

FIG. 1 is a three-dimensional structural diagram of a lens adjustment mechanism provided by an embodiment of the application;

FIG. 2 is an internal structure diagram of a lens adjustment mechanism provided by an embodiment of the application;

FIG. 3 is a three-dimensional structural diagram of a lens module, a fixing member, and a rotating shaft provided by an embodiment of the application;

Figure 4 is a three-dimensional structural view of a fixing member and a rotating shaft provided by an embodiment of the application;

FIG. 5 is a three-dimensional structural diagram of a first housing provided by an embodiment of the application.

Among them, the reference signs in the figure:

010-External adjustment member; 1-housing; 11-first housing; 111-fourth connecting hole; 112-positioning platform; 1121-first arc positioning part; 1122-first positioning surface; 113-second positioning Surface; 114-second arc positioning part; 12-second housing; 121-shooting hole; 2-lens module; 21-connection part; 211-second connection hole; 22-positioning post; 3-rotation shaft; 31-open slot; 32-first connecting hole; 4-fixing part; 41-positioning part; 42-locking part; 421-third connecting hole; 5-first locking part; 6-second locking part .

Embodiments of the present invention

In order to make the technical problems, technical solutions, and beneficial effects to be solved by the present application clearer, the following further describes the present application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not used to limit the present application.

It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top" , "Bottom", "Inner", "Outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply the device referred to. Or the element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present application.

In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present application, "multiple" means two or more than two, unless otherwise specifically defined.

The lens adjustment mechanism provided in the embodiment of the present application will now be described.

Please refer to FIGS. 1 to 3. In one of the embodiments of the present application, the lens adjusting mechanism includes a housing 1, a lens module 2, a rotating shaft 3 and a fixing member 4. The lens module 2 and the fixing member 4 are arranged inside the housing 1, and the housing 1 is provided with a shooting hole 121, so that the lens module 2 is exposed to photograph external objects. The fixing member 4 positions the rotating shaft 3 on the inner wall of the housing 1 so that the rotating shaft 3 can only rotate relative to the fixing member 4. Since the fixing member 4 locates the rotating shaft 3 inside the housing 1, when there is no external force, the rotating shaft 3 is relatively fixed to the housing 1. When the external force acts on the rotating shaft 3, the rotating shaft 3 can rotate relative to the housing 1. One end of the rotating shaft 3 is fixed to the lens module 2 and the other end of the rotating shaft 3 extends out of the housing 1. When the rotating shaft 3 rotates, the lens module 2 also rotates with the rotating shaft 3, so that the shooting angle of the lens module 2 can be adjusted. Specifically, an external adjusting member 010 adapted to the end of the rotating shaft 3 can be used to rotate the rotating shaft 3 to rotate the lens module 2 to a corresponding angle.

The lens adjustment mechanism in the above embodiment includes a housing 1, a lens module 2, a rotating shaft 3, and a fixing part 4. The fixing part 4 is used to fix the rotating shaft 3 inside the housing 1, and the rotating shaft 3 can rotate relative to the fixing part 4. One end of the rotating shaft 3 extends out of the housing 1, and the other end of the rotating shaft 3 is fixedly connected to the lens module 2. When the shooting angle of the lens module 2 needs to be adjusted, the rotating shaft 3 is rotated by the external adjusting member 010, and the rotating shaft 3 drives the lens module 2 fixed to it to rotate, so as to realize the function of adjusting the shooting angle of the lens module 2. The lens adjustment mechanism only needs the fixing member 4 and the rotating shaft 3 to realize the angle adjustment of the lens module 2 and has a simple structure, so the cost of the lens adjustment mechanism can be reduced.

In one of the embodiments of the present application, please refer to FIGS. 2 to 4, an opening groove 31 is formed at one end of the rotating shaft 3 protruding from the housing 1. Optionally, the opening groove 31 is provided at the end of the rotating shaft 3, and the external adjusting member 010 extends into the opening groove 31 to drive the rotating shaft 3 to rotate. In this embodiment, the external adjustment member 010 may be a screwdriver or other tools. The opening groove 31 can be a straight groove, a cross groove, a hexagonal groove, and the like.

In another embodiment of the present application, one end of the rotating shaft 3 protruding from the housing 1 has a matching portion, and the matching portion is used to extend into the inner cavity of the external adjusting member. Specifically, the inner cavity of the external adjusting member has an opening, and the inner cavity matches the outer profile of the mating part. Moreover, the cross section of the mating part is polygonal, so that after the mating part extends into the inner cavity of the external adjusting part, the rotation of the external adjusting part can drive the rotating shaft 3 to rotate. Optionally, the cross section of the mating part is triangular, quadrilateral, pentagonal, hexagonal, or the like.

In one of the embodiments of the present application, please refer to FIGS. 2 to 4, the rotating shaft 3 and the lens module 2 are fixedly connected by the first locking member 5. The first locking member 5 may be a screw, a pin, and the like. Specifically, one end of the rotating shaft 3 is provided with a first connecting hole 32, the surface of the lens module 2 is protrudingly provided with a connecting portion 21, and the connecting portion 21 is provided with a second connecting hole 211. The first connecting hole 32 is connected to the second connecting hole. The holes 211 are arranged directly opposite, and the first locking member 5 passes through the first connecting hole 32 and the second connecting hole 211, so that the rotating shaft 3 and the lens module 2 are fixedly connected. The first locking member 5 is used to fix the rotating shaft 3 and the lens module 2, the connection between the rotating shaft 3 and the lens module 2 is stable, and it can be disassembled to facilitate the maintenance of the lens module 2.

In one of the embodiments of the present application, please refer to FIGS. 3 and 4, the fixing member 4 includes a positioning portion 41 and two locking portions 42, which are respectively connected to two ends of the positioning portion 41, and The two locking portions 42 are both fixed on the inner wall of the housing 1, and the rotating shaft 3 is arranged on the inner wall of the housing 1 under the restriction of the positioning portion 41. By fixing the two locking portions 42 at both ends of the positioning portion 41 on the inner wall of the housing 1, the rotating shaft 3 is relatively fixed to the fixing member 4 without external force, and the rotating shaft 3 can be relatively fixed to the fixing member 4 when an external force is applied. Rotate.

Optionally, referring to FIGS. 2 to 4, the locking portion 42 is fixed to the inner wall of the housing 1 through the second locking member 6, and the second locking member 6 may be a screw, a pin, or the like. Specifically, the locking portion 42 is provided with a third connecting hole 421, the inner wall of the housing 1 is provided with a fourth connecting hole 111, the third connecting hole 421 and the fourth connecting hole 111 are arranged directly opposite, and the second locking member 6 penetrates Through the third connecting hole 421 and the fourth connecting hole 111, the locking portion 42 is fixed to the inner wall of the housing 1. The first locking member 5 is used to fix the rotating shaft 3 and the lens module 2, the connection between the rotating shaft 3 and the lens module 2 is stable, and it can be disassembled to facilitate the maintenance of the lens module 2.

Optionally, the locking portion 42 is clamped on the inner wall of the housing 1. Specifically, the inner wall of the casing 1 is provided with a card slot, and the locking portion 42 is inserted into the card slot, so that the locking portion 42 is fixed to the inner wall of the casing 1. In this embodiment, the fixing member 4 is easier to disassemble, which is more convenient for the later maintenance and replacement of the lens module 2.

In one of the embodiments of the present application, please refer to FIG. 3 and FIG. 4, the positioning portion 41 is arc-shaped, and the rotating shaft 3 is pressed against the inner wall of the housing 1 by the positioning portion 41. In this embodiment, the positioning portion 41 and the inner wall of the housing cooperate to clamp the rotating shaft 3 so that the rotating shaft 3 can only rotate under the action of external force. Optionally, the inner wall of the housing 1 is provided with an arc-shaped part, the positioning part 41 and the arc-shaped part are directly opposed, and the positioning part 41 and the arc-shaped part are combined to form a circular ring shape, and the rotating shaft 3 is disposed through the circular ring shape. The rotating shaft 3 is pressed by the positioning portion 41 and the arc-shaped portion.

In one of the embodiments of the present application, please refer to Figures 1 and 2. The housing 1 includes a first housing 11 and a second housing 12. The first housing 11 covers the second housing 12, and the first housing 11 covers the second housing 12. The housing 11 and the second housing 12 are fixedly connected or detachably connected. Optionally, the first housing 11 and the second housing 12 are fixed to each other by screws or pins. The lens module 2, the fixing member 4, and the rotating shaft 3 are all connected to the first housing 11, the shooting direction of the lens module 2 faces the second housing 12, and the second housing 12 is provided with a shooting hole 121 for the lens module 2 Use for shooting.

In one of the embodiments of the present application, please refer to FIGS. 3 and 5, the first housing 11 is provided with a first arc positioning portion 1121, and the lens module 2 is provided with a positioning post on the side away from the fixing member 4 22. The positioning column 22 is located in the first arc positioning portion 1121. When the lens module 2 rotates with the rotating shaft 3, the positioning column 22 also rotates in the first arc positioning portion 1121. The positioning post 22 and the first arc positioning portion 1121 enable the first housing 11 to support the lens module 2 and prevent the lens module 2 from being suspended on the side away from the fixing member 4, so that the lens module 2 Rotation is more stable. In this embodiment, the arc-shaped portion supports the rotating shaft 3, and the first arc positioning portion 1121 supports the positioning column 22, so that the structure composed of the rotating shaft 3 and the lens module 2 has two supporting points, so that the rotating shaft 3 and the lens module 2 have two supporting points. The rotation of group 2 is more stable.

In one of the embodiments of the present application, please refer to FIGS. 3 and 5, the first housing 11 is provided with a second arc positioning portion 114, and the end of the rotating shaft 3 away from the lens module 2 is provided at the second arc positioning portion In 114, when the rotating shaft 3 rotates, the second arc positioning portion 114 has a supporting and limiting effect on the rotating shaft 3. Optionally, the second housing 12 is correspondingly provided with a third arc positioning portion 41, and the second arc positioning portion 114 and the third arc positioning portion 41 together form a shaft hole, which can support and limit the shaft 3 together. The role of bits. In this embodiment, the first housing 11 and/or the second housing 12 are provided with a scale at the shaft hole for marking the angle that the shaft 3 has rotated.

In one of the embodiments of the present application, please refer to FIGS. 3 and 5, the first housing 11 is provided with a first arc positioning portion 1121 and a second arc positioning portion 114 at the same time. A positioning post 22 is protrudingly provided on the side of the lens module 2 away from the fixing member 4, the positioning post 22 is located in the first arc positioning portion 1121, and the end of the rotating shaft 3 away from the lens module 2 is provided at the second arc positioning portion 114 middle. In this embodiment, the arc portion and the second arc positioning portion 114 support the rotating shaft 3, and the first arc positioning portion 1121 supports the positioning column 22, so that the structure composed of the rotating shaft 3 and the lens module 2 has three supporting points. , Thereby making the rotation of the rotating shaft 3 and the lens module 2 more stable.

In one of the embodiments of the present application, please refer to Figures 2 and 5, the inner wall of the first housing 11 is provided with a positioning platform 112, the side of the positioning platform 112 has a first positioning surface 1122, and the first positioning surface 1122 is used for It abuts against the side surface of the lens module 2 to position the lens module 2. The first housing 11 also has a second positioning surface 113, the second positioning surface 113 is used for positioning the side surface of the fixing member 4, and the second positioning surface 113 can also be used for positioning the other side of the lens module 2. The first positioning surface 1122 and the second positioning surface 113 are parallel to each other. When the first positioning surface 1122 and the second positioning surface 113 are perpendicular to the axis of the rotating shaft 3, the lens module 2 and the rotating shaft 3 will not move axially. Optionally, the top of the positioning table 112 is provided with the above-mentioned first arc positioning portion 1121, so that the positioning table 112 not only has the function of supporting the lens module 2 but also has the function of axially positioning the lens module 2.

In one of the embodiments of the present application, please refer to FIG. 2. The lens module 2, the rotating shaft 3 and the fixing member 4 can be combined to form an adjustment assembly. The number of adjustment assemblies can be two or more, and the specific number can be based on actual The situation is selected. When the number of adjustment components is two, the adjustment components are symmetrically arranged with the predetermined symmetry axis, that is, the two lens modules 2, the two rotating shafts 3, and the two fixing members 4 are all arranged symmetrically with the predetermined symmetry axis. The ends of the two rotating shafts 3 away from the predetermined axis of symmetry respectively protrude from opposite sides of the housing 1 so that the two lens modules 2 can be adjusted from the opposite sides of the housing 1 respectively.

The above descriptions are only the preferred embodiments of this application and are not intended to limit this application. Any modification, equivalent replacement and improvement made within the spirit and principle of this application shall be included in the protection of this application. Within range.

Claims (13)

The lens adjustment mechanism is characterized by comprising a housing, a lens module provided in the housing, a rotating shaft for driving the lens module to rotate, and a fixing member for positioning the rotating shaft on the inner wall of the housing, The housing is provided with a shooting hole for shooting by the lens module, the fixing part is fixed to the inner wall of the housing, the rotating shaft rotates relative to the fixing part, and one end of the rotating shaft is fixed to the lens module, The other end of the rotating shaft protrudes from the housing. 5. The lens adjusting mechanism according to claim 1, wherein the end of the rotating shaft protruding from the housing is provided with an opening groove for the external adjusting member to extend and rotate the rotating shaft. The lens adjustment mechanism according to claim 1, wherein one end of the rotating shaft extending from the housing has a matching portion for extending into the inner cavity of the external adjusting member, and the cross section of the matching portion is polygonal . The lens adjustment mechanism of claim 1, wherein the rotating shaft and the lens module are fixedly connected by a first locking member; one end of the rotating shaft is provided with a first connecting hole, and the lens module A connecting portion is provided on the surface of the protruding portion, a second connecting hole is opened on the connecting portion, and the first locking member is disposed through the first connecting hole and the second connecting hole. The lens adjustment mechanism of claim 1, wherein the fixing member includes a positioning portion and locking portions respectively connected to both ends of the positioning portion, and both of the locking portions are fixed to the housing Inner wall. 5. The lens adjustment mechanism of claim 5, wherein the locking portion is fixed to the inner wall of the housing by a second locking member; the locking portion is provided with a third connecting hole, and the housing The inner wall is provided with a fourth connecting hole, and the second locking member is disposed through the third connecting hole and the fourth connecting hole. 5. The lens adjusting mechanism according to claim 5, wherein the inner wall of the housing is provided with a card slot, and the locking part is inserted into the card slot to be arranged. 7. The lens adjustment mechanism of claim 5, wherein the positioning portion is arc-shaped, and the rotating shaft is sandwiched between the positioning portion and the inner wall of the housing. The lens adjustment mechanism of claim 1, wherein the housing comprises a first housing and a second housing covering the first housing, the lens module and the fixing member Both the rotating shaft and the rotating shaft are connected to the first housing, and the second housing is provided with the photographing hole. 9. The lens adjustment mechanism of claim 9, wherein the first housing is provided with a first arc positioning portion, and a positioning post is protrudingly provided on a side of the lens module away from the fixing member, so The positioning column is arranged in the first arc positioning portion. The lens adjustment mechanism of claim 10, wherein the inner wall of the first housing is provided with a positioning platform, the top of the positioning platform is provided with the first arc positioning portion, and the positioning platform The side surface has a first positioning surface for positioning the side surface of the lens module; the first housing also has a second positioning surface for positioning the side surface of the fixing member; the first positioning surface and the second positioning surface The positioning surfaces are parallel to each other. The lens adjustment mechanism of claim 10, wherein the first housing is further provided with a second arc positioning portion, and an end of the rotating shaft away from the lens module is provided on the second arc In the positioning department. The lens adjustment mechanism according to claims 1-12, wherein the number of the lens module, the rotating shaft and the fixing member are all two, two of the lens modules, two of the The rotating shaft and the two fixing members are all symmetrically arranged with a predetermined symmetry axis, and the ends of the two rotating shafts away from the predetermined symmetry axis are respectively arranged to extend out of opposite sides of the housing.