A camera assembly support and camera assembly

The camera mounting bracket with a combination of slide rails and sliders solves the installation problem of vision inspection camera brackets with different column spacings, realizes flexible adjustment of leg spacing and multi-directional independent adjustment, and improves installation convenience and positioning accuracy.

CN224339816UActive Publication Date: 2026-06-09CHINA RAILWAY ENG MASCH RES & DESIGN INST CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA RAILWAY ENG MASCH RES & DESIGN INST CO LTD
Filing Date
2025-08-12
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

The fixed spacing of existing visual inspection camera brackets makes it difficult to adapt to the spacing of different equipment columns, resulting in difficult installation and inconvenient adjustment, which affects the deployment efficiency and imaging quality of machine vision systems.

Method used

Design a camera mounting bracket that uses a combination of slide rails and sliders, allowing the leg spacing to be flexibly adjusted within the length of the crossbeam. The slide rail system enables multi-directional independent adjustment of the legs and camera mounting plate, adapting to asymmetrical support structures.

Benefits of technology

It enables flexible installation of camera brackets at different column spacings, improves equipment adaptability and ease of installation and adjustment, ensures camera positioning accuracy and structural stability, and avoids interference from component movement.

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Abstract

The utility model provides a kind of camera assembly support and camera assembly assembly, it is related to image acquisition equipment technical field;Camera assembly support includes crossbeam, camera mounting plate and support leg;Crossbeam is provided with the slide along the extension direction of crossbeam at least two surfaces;Slide is equipped with slider inside;Camera mounting plate is connected with the slider inside in one group slide;Two support legs are connected with the slider inside in another group slide through the slide and slider combination structure, make support leg spacing can be adjusted within the length range of crossbeam, make support leg spacing can be flexibly adjusted according to the actual distance of two side support structures, solve the installation problem of fixed pitch support in variable span scene. The multidirectional independent adjustment of support leg and camera mounting plate is realized by using slide system of different surfaces, while ensuring the positioning accuracy of camera, ensure that support can be stably installed on asymmetric support structure. The multidirectional layout of slide system effectively avoids component motion interference, improves the convenience of structural adjustment.
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Description

Technical Field

[0001] This utility model relates to the field of image acquisition equipment technology, and more specifically, to a camera mounting bracket and camera assembly. Background Technology

[0002] In the field of machine vision, the quality of image detection is highly dependent on the image acquisition process. Image acquisition is typically performed by a camera, and the camera's position not only affects the light intensity, thus altering the brightness of the acquired image, but also influences the reflected light during image acquisition, thereby changing the image's color. As a key component supporting the camera, the performance of the camera mount plays a decisive role in the quality of image acquisition.

[0003] Currently, most visual inspection camera mounts on the market are one-piece structures with a fixed spacing between the mounting legs at both ends. This rigid structure has significant limitations in practical applications. Especially in industrial automation scenarios, such as gantry welding robot systems, where the camera mount needs to be mounted across two columns, the fixed spacing often fails to accommodate the varying column spacing of different equipment. Furthermore, existing mounts have limited camera mounting position adjustment range, making it difficult to meet the precise adjustment requirements for different inspection angles and field of view. These structural defects lead to difficult installation and inconvenient adjustment, severely impacting the deployment efficiency and image quality of machine vision systems. Utility Model Content

[0004] The purpose of this utility model is to provide a camera mounting bracket and camera assembly, which has the advantages of improving equipment compatibility and ease of installation and adjustment.

[0005] In a first aspect, this utility model provides a camera mounting bracket, including a crossbeam, a camera mounting plate, and legs; at least two surfaces of the crossbeam are provided with slides along the extension direction of the crossbeam; sliders are installed in the slides; the camera mounting plate is connected to the sliders in one set of slides; and both legs are connected to the sliders in the other set of slides.

[0006] The beneficial effects of this camera mounting bracket are:

[0007] In use, the camera mounting plate can be adjusted in the direction of the beam extension via a set of sliding blocks on a slide rail system, ensuring the camera's viewing angle is aligned with the target. When the leg spacing needs adjustment, the corresponding slider of the leg is moved along another set of slide rails to the target position and then fixed again. The two sets of slide rails are set on different surfaces to avoid interference between leg movement and camera position adjustment. This combination of slide rails and sliders allows the leg spacing to be adjusted arbitrarily within the beam length, enabling flexible adjustment based on the actual distance between the two supporting structures, thus solving the installation problem of fixed-spacing brackets in variable-span scenarios. The use of a slide rail system on different surfaces allows for multi-directional independent adjustment of the legs and camera mounting plate, ensuring both camera positioning accuracy and stable installation of the bracket on asymmetrical support structures. The multi-directional layout of the slide rail system effectively avoids interference between components, improving the convenience and reliability of structural adjustment.

[0008] Optionally, the cross-section of the beam is rectangular; the two surfaces with the slide rails are adjacent surfaces of the beam.

[0009] Optionally, a groove is formed on the surface of the crossbeam along the extension direction of the crossbeam; a slider is slidably disposed in the groove, and both ends of the groove pass through the ends of the crossbeam; the groove forms a slide.

[0010] Optionally, there shall be no fewer than two grooves on the same surface of the crossbeam.

[0011] Optionally, a connecting rod is mounted on the camera mounting plate; the end of the connecting rod away from the camera mounting plate extends into a groove and connects to the slider.

[0012] Optionally, the support leg includes a connecting plate, a longitudinal beam, and a sliding plate; the connecting plate and the sliding plate are respectively connected to both ends of the longitudinal beam; a number of mounting screws are installed on the connecting plate; a connecting rod is installed on the sliding plate; the end of the connecting rod away from the sliding plate extends into the groove and connects to the slider.

[0013] Optionally, a reinforcing beam is provided between the connecting plate and the longitudinal beam.

[0014] Optionally, end caps can be detachably installed at both ends of the slide.

[0015] Optionally, the opening width of the groove is smaller than the width of the slider in the direction perpendicular to the extension of the crossbeam.

[0016] Secondly, this utility model provides a camera assembly, including the camera mounting bracket as described above; a camera is mounted on the camera mounting plate of the camera mounting bracket. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the camera mounting bracket in this embodiment;

[0018] Figure 2This is a structural schematic diagram of the camera mounting bracket from another perspective in this embodiment;

[0019] Figure 3 for Figure 2 Enlarged view of the structure at point A in the middle;

[0020] Figure 4 This is a schematic diagram of the support leg in this embodiment;

[0021] Figure 5 for Figure 4 Enlarged view of the structure at point B;

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Crossbeam; 101. Groove; 102. Slider; 2. Support leg; 201. Connecting plate; 202. Mounting screw; 203. Longitudinal beam; 204. Reinforcing beam; 205. Sliding plate; 3. Camera mounting plate. Detailed Implementation

[0024] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Although some embodiments of this utility model are shown in the drawings, it should be understood that this utility model can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this utility model. It should be understood that the drawings and embodiments of this utility model are for illustrative purposes only and are not intended to limit the scope of protection of this utility model.

[0025] In the attached diagram, the X-axis represents the front-to-back position, with the positive direction of the X-axis representing the front and the negative direction representing the back; the Y-axis represents the left-to-right position, with the positive direction of the Y-axis representing the left and the negative direction representing the right; and the Z-axis represents the up-down position, with the positive direction of the Z-axis representing the top and the negative direction representing the bottom. It should be noted that the aforementioned representations of the X, Y, and Z axes are for ease of description and simplification of the present invention, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0026] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to"; the term "based on" means "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; and the term "optionally" means "optional embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first," "second," etc., mentioned in this utility model are only used to distinguish different devices, modules, or units, and are not used to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0027] It should be noted that the terms "one" and "multiple" used in this utility model are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0028] like Figure 1-5 As shown, an embodiment of the present invention provides a camera mounting bracket, including a crossbeam 1, a camera mounting plate 3, and support legs 2; the crossbeam 1 has at least two surfaces provided with slides along the extension direction of the crossbeam 1; sliders 102 are installed in the slides; the camera mounting plate 3 is connected to the sliders 102 in one set of slides; both support legs 2 are connected to the sliders 102 in the other set of slides.

[0029] The crossbeam 1 refers to the main structure that supports the camera mounting plate 3 and the legs 2, and can be implemented using a rectangular cross-section metal profile. The slide rail is a guide structure extending along the length of the crossbeam 1, and can be machined into the surface of the crossbeam 1 in the form of a groove 101, which runs through both ends of the crossbeam 1 to form a continuous track. The slider 102 is a moving component that cooperates with the slide rail, and can be a sliding assembly with rollers, capable of moving freely within the slide rail and locking in position.

[0030] Specifically, the sliding track system on adjacent surfaces of the crossbeam 1 provides independent movement paths for the legs 2 and the camera mounting plate 3. When it is necessary to adjust the spacing of the legs 2, the locking mechanism of the slider 102 is released, and the corresponding slider 102 of the legs 2 is moved along the track to the target position and then fixed again. The camera mounting plate 3 achieves forward and backward displacement adjustment through the slider 102 of another set of tracks, ensuring that the camera's viewing angle is aligned with the detection target. The two sets of tracks are respectively set on adjacent surfaces to avoid interference between the movement of the legs 2 and the adjustment of the camera position. In this embodiment, the camera mounting bracket, through the combination structure of the tracks and sliders 102, allows the spacing of the legs 2 to be arbitrarily adjusted within the length of the crossbeam 1, enabling flexible adjustment of the spacing of the legs 2 according to the actual distance between the two supporting structures, thus solving the installation problem of fixed-spacing brackets in variable-span scenarios. By using the sliding track system on different surfaces to achieve multi-directional independent adjustment of the legs 2 and the camera mounting plate 3, the positioning accuracy of the camera is ensured while ensuring that the bracket can be stably installed on the asymmetrical support structure. The multi-directional layout of the track system effectively avoids interference between component movements, improving the convenience and reliability of structural adjustment.

[0031] Optionally, the cross-section of the beam 1 is rectangular; the two surfaces on which the slide rail is provided are adjacent surfaces of the beam 1.

[0032] The rectangular cross-section refers to the quadrilateral shape of the crossbeam 1 with right angles at each interior angle. This can be achieved by extruding metal profiles or machining. The rectangular structure enhances the bending stiffness and load-bearing stability of the crossbeam 1. The sliding tracks are located on adjacent surfaces, meaning they are situated on two mutually perpendicular outer surfaces of the crossbeam 1. This can be achieved by creating grooves 101 on adjacent surfaces or installing guide rails. The sliding track layout on adjacent surfaces provides two mutually perpendicular directions of movement for adjusting the spacing between the legs 2.

[0033] Specifically, the rectangular cross-section of the beam 1 forms right angles between its adjacent surfaces. When the legs 2 are installed on the slides of the two adjacent surfaces via sliders 102, the legs 2 can be independently adjusted in both the horizontal and vertical directions. For example, in the application of a gantry welding robot, the operator can move the legs 2 along the length of the beam 1 to match the lateral spacing of the columns on both sides, and simultaneously adjust the longitudinal installation height of the legs 2 via the slides on the adjacent surfaces, thereby achieving free adaptation of the spacing of the legs 2 in a two-dimensional plane. The slide design of the adjacent surfaces of the rectangular beam 1 breaks through the limitation of single-degree-of-freedom adjustment. The orthogonal layout of the slides achieves two-dimensional adjustability of the spacing of the legs 2, solving the problem of installation environment adaptability caused by the fixed spacing of the legs 2. This allows the camera bracket to flexibly match the mounting surfaces of columns with different spacings. For example, when the spacing of the columns on both sides of the gantry equipment is inconsistent, rapid installation and positioning can be achieved through the bidirectional adjustment function of the adjacent slides.

[0034] Optionally, a groove 101 is formed on the surface of the crossbeam 1 along the extension direction of the crossbeam 1; a slider 102 is slidably disposed in the groove 101, and both ends of the groove 101 pass through the ends of the crossbeam 1; the groove 101 forms a slide.

[0035] The groove 101 refers to a strip-shaped recessed structure that extends continuously along the length of the crossbeam 1. It can be achieved through milling or extrusion molding, and its inner wall forms a guiding and constraining surface for the slider 102. The slider 102 refers to a sliding component that matches the cross-sectional shape of the groove 101. It can be implemented using a metal block with ball bearings or linear bearings, achieving sliding friction through contact with the inner wall of the groove 101. The groove 101 penetrating the end of the crossbeam 1 means that the groove 101 forms a completely open end opening along the length of the crossbeam 1. This can be achieved by extending the machining path to the end face of the crossbeam 1, facilitating the direct insertion of the slider 102 into the slideway from the end.

[0036] Specifically, the groove 101 extends along the axis of the crossbeam 1 to form a continuous sliding track, and the slider 102 is embedded in the track through the opening of the groove 101. After the connecting frame of the support leg 2 is fixed to the slider 102, the spacing of the support leg 2 is adjusted by pushing the slider 102 to slide along the groove 101. The structure of the groove 101 penetrating the end of the crossbeam 1 allows the slider 102 to completely detach from the end of the crossbeam 1, maximizing the adjustment range of the spacing of the support leg 2. The contact surface between the inner wall of the groove 101 and the side of the slider 102 forms a multi-directional limit, which provides constraint in both the horizontal and vertical directions, ensuring that no deflection displacement occurs during the adjustment of the spacing of the support leg 2. In this embodiment, the camera mounting bracket allows the spacing of the support leg 2 to be continuously adjusted without disassembling any components through the sliding engagement of the groove 101 and the slider 102. Furthermore, by directly integrating the slide rail into the body of the crossbeam 1, the sources of assembly error are reduced. The through-groove 101 design allows the slider 102 to be maintained and replaced without disassembling the main structure of the crossbeam 1, improving equipment maintenance efficiency.

[0037] Optionally, there are no fewer than two grooves 101 on the same surface of the crossbeam 1.

[0038] Specifically, after two or more grooves 101 are provided on the surface of the crossbeam 1, the sliders 102 can be embedded in different grooves 101 respectively. The camera mounting plate 3 is connected to multiple sliders 102 simultaneously through connecting rods. When the camera mounting plate 3 is subjected to external force or vibration, the contact points of multiple sliders 102 distribute the load, forming a multi-point support structure, avoiding deflection or swaying caused by single-point force. The parallel distribution of grooves 101 keeps the sliders 102 synchronized during movement, ensuring that the camera mounting plate 3 is always in a balanced state when adjusting its position. By increasing the number of grooves 101, a multi-slide synergy is formed, significantly improving the anti-interference ability of the support structure, solving the problem of insufficient stability of the camera mounting plate 3 due to single-point support, enabling it to maintain a precise position under complex working conditions, and avoiding the impact of structural imbalance on image acquisition quality.

[0039] Optionally, a connecting rod is mounted on the camera mounting plate 3; one end of the connecting rod away from the camera mounting plate 3 extends into the groove 101 and connects to the slider 102.

[0040] The connecting rod is a rigid rod-shaped component used to transmit loads. It can be made of metal or carbon fiber, and its length can be adjusted according to the depth of the groove 101. It is fixedly connected to the camera mounting plate 3 by threaded fastening or welding. The connection between the connecting rod and the slider 102 within the groove 101 means that the end of the connecting rod is embedded in the slide rail of the groove 101. This can be achieved using a dovetail joint or a T-slot joint. A sliding pair is formed between the slider 102 and the sidewall of the groove 101, allowing the connecting rod to move freely in the extending direction of the groove 101.

[0041] Specifically, the connecting rod is configured as an intermediate force transmission structure between the camera mounting plate 3 and the slider 102. When the position of the camera mounting plate 3 needs to be adjusted, the connecting rod is moved along the groove 101 by pushing the camera mounting plate 3, while the slider 102 slides synchronously within the groove. The rigid structure of the connecting rod can withstand the bending moment and torque transmitted by the camera mounting plate 3, preventing positioning offset caused by deformation under force during adjustment. The sidewall of the groove 101 constrains the lateral displacement of the connecting rod, ensuring that the camera mounting plate 3 maintains a horizontal posture during movement. After adjustment, the position of the connecting rod is fixed by locking the slider 102, thereby achieving stable support for the camera mounting plate 3. By adding the connecting rod structure, the adjustment action of the mounting plate is separated from the locking action of the slider 102. During operation, only the mounting plate needs to be moved to drive the slider 102 in conjunction, and the slider 102 is fixed separately after adjustment. This simplifies the operation steps and enhances the torsional resistance through the rod structure.

[0042] Optionally, the support leg 2 includes a connecting plate 201, a longitudinal beam 203, and a sliding plate 205; the two ends of the longitudinal beam 203 are respectively connected to the connecting plate 201 and the sliding plate 205; a plurality of mounting screws 202 are installed on the connecting plate 201; a connecting rod is installed on the sliding plate 205; the end of the connecting rod away from the sliding plate 205 extends into the groove 101 and connects to the slider 102.

[0043] The connecting plate 201 is a plate-shaped component used to fix the outrigger 2 to the external support structure. It can be a metal plate with threaded holes, and the outrigger 2 is locked to the external column surface by mounting screws 202. The longitudinal beam 203 is a supporting component connecting the connecting plate 201 and the sliding plate 205. It can be a rectangular steel pipe or an I-beam, and its length can be adjusted according to the spacing of the outriggers 2, thus transmitting the load of the outriggers 2 while maintaining structural stability. The sliding plate 205 is an adjusting component connected to the end of the longitudinal beam 203. It can be a steel plate with guide grooves, and it forms a linkage with the slider 102 in the slide rail through a connecting rod. The mounting screws 202 are fasteners used to fix the connecting plate 201. They can be hex bolts with anti-loosening washers, and the number can be set to four or six depending on the load-bearing requirements.

[0044] Specifically, after the outriggers 2 are fixed to the external support structure by the mounting screws 202 on the connecting plate 201, the sliding plate 205 is rigidly connected to the slider 102 in the slide rail of the crossbeam 1 via the connecting rod. When it is necessary to adjust the distance between the two outriggers 2, the slider 102 can be moved along the slide rail, causing the sliding plate 205 to drive the longitudinal beam 203 to produce lateral displacement. This embodiment enables the distance between the camera bracket outriggers 2 to be flexibly adjusted according to the actual distance of the external support structure, effectively solving the installation adaptation problem of traditional fixed outriggers 2 in special scenarios such as gantry robots. The position adjustment of the outriggers 2 does not require disassembling the entire structure; it can be completed simply by moving the slider 102, greatly reducing the complexity of on-site installation. The outriggers 2 adopt a modular design, which ensures the load-bearing capacity while achieving stepless adjustment of the distance between the outriggers 2, avoiding the need for bracket replacement due to differences in the installation environment.

[0045] Optionally, a reinforcing beam 204 is provided between the connecting plate 201 and the longitudinal beam 203.

[0046] Among them, the reinforcing beam 204 refers to the supporting component set at the connection between the connecting plate 201 and the longitudinal beam 203. Specifically, it can be achieved by welding a triangular steel plate or a straight rod at the angle between the connecting plate 201 and the longitudinal beam 203, thereby dispersing stress by increasing the contact area and structural rigidity of the connection.

[0047] Specifically, when the outrigger 2 bears an external load, shear stress is generated at the connection between the connecting plate 201 and the longitudinal beam 203 due to the torque. The reinforcing beam 204, through its own rigid support, transfers part of the load borne by the connecting plate 201 to the axial direction of the longitudinal beam 203, thereby reducing the stress concentration at the connection. During the adjustment of the outrigger 2 position, when the sliding plate 205 drives the longitudinal beam 203 to move along the slide rail of the crossbeam 1, the reinforcing beam 204 maintains the stability of the angle between the connecting plate 201 and the longitudinal beam 203, preventing structural deformation caused by repeated stress.

[0048] Optionally, end caps can be detachably installed at both ends of the slide.

[0049] The two ends of the slide refer to the two open ends of the slide along the extension direction of the crossbeam 1. Specifically, this can be achieved by using a through-type opening structure formed by machining, with the open ends exposed at the ends of the crossbeam 1 to form a through channel. The detachable end cap refers to a closed component that is installed and removed by fasteners or snap-fit ​​structures. Specifically, this can be achieved by using a metal cover plate with threaded holes and screws for connection, with the size of the cover plate matching the cross-sectional shape of the slide opening end.

[0050] Specifically, mounting bases are provided at the openings at both ends of the slide, and end caps are fixed to the mounting bases with screws to form a sealed interface. When the end caps are installed, the two ends of the slide form a closed structure, preventing the slider 102 from leaving the track along the slide direction, while also preventing external dust from entering the slide through the openings. When it is necessary to adjust the position of the slider 102 or clean the slide, the end caps can be removed to open the two ends of the slide, at which time the slider 102 can be moved out of the crossbeam 1 along the slide. By adding detachable end caps, the flexible switching between the open and closed states of the slide is achieved while maintaining the advantages of the through-type slide structure. This effectively prevents the slider 102 from accidentally leaving the slide in the non-operating state, avoids foreign objects from entering the slide and causing the slider 102 to jam, and retains the maintenance convenience of the through-type slide structure. The quick disassembly and assembly characteristics of the end caps improve the efficiency of slide cleaning and slider 102 position repositioning.

[0051] Optionally, the opening width of the groove 101 is smaller than the width of the slider 102 in the direction perpendicular to the extension of the beam 1.

[0052] The opening width of the groove 101 refers to the distance between the two side walls of the groove 101 facing outward. This width can be achieved by controlling the groove size through machining. This size parameter is set to be less than the minimum lateral dimension of the slider 102 perpendicular to the sliding direction. The width of the slider 102 perpendicular to the extension direction of the slide rail is used to prevent the slider 102 from passing through the opening of the groove 101 in its natural state.

[0053] Specifically, the dimensional relationship between the opening width of the groove 101 and the width of the slider 102 is configured to form a mechanical interference structure. When the slider 102 is assembled into the groove 101, because the opening width is smaller than the slider 102 width, the slider 102 needs to undergo elastic deformation or adjust the assembly angle to enter the groove 101. After assembly, the slider 102 is physically constrained by the sidewall of the groove 101 in its natural state and cannot detach from the opening. This structure maintains the slider 102's axial sliding freedom along the slide rail while achieving an anti-detachment function through geometric dimensional constraints.

[0054] In some specific embodiments, a guide slope may be provided on the sidewall of the groove 101 to assist in the assembly of the slider 102. The slider 102 may be made of engineering plastic with elastic deformation capability. The opening edge of the groove 101 may be chamfered to reduce assembly resistance while maintaining the dimensional accuracy of the opening width.

[0055] Compared to traditional anti-detachment structures that typically use bolts or clips, requiring additional steps and occupying installation space, this embodiment achieves anti-detachment functionality through dimensional constraints. This ensures the slider 102 is confined within the groove 101 without the need for additional fasteners, improving structural space utilization. Under normal use, the slider 102 cannot detach from the opening of the groove 101, preventing structural instability due to vibration or external forces. While maintaining position adjustment functionality, the anti-detachment effect is achieved through geometric constraints, eliminating the need for additional tightening during assembly and enhancing structural reliability.

[0056] Another embodiment of this utility model discloses a camera assembly, including a camera mounting bracket as described above; a camera is mounted on the camera mounting plate 3 of the camera mounting bracket.

[0057] The advantages of the camera assembly in this embodiment over the prior art are the same as those of the camera mounting bracket described above, and will not be repeated here.

[0058] Although the present invention has been disclosed above, its protection scope is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the protection scope of the present invention.

Claims

1. A camera mounting bracket, characterized in that, It includes a crossbeam (1), a camera mounting plate (3), and legs (2); the crossbeam (1) has at least two surfaces provided with slides extending along the direction of the crossbeam (1); a slider (102) is installed in the slide; the camera mounting plate (3) is connected to one set of sliders (102) in the slide; both legs (2) are connected to the sliders (102) in the other set of slides.

2. The camera mounting bracket according to claim 1, characterized in that, The cross-section of the beam (1) is rectangular; the two surfaces on which the slide is provided are adjacent surfaces of the beam (1).

3. The camera mounting bracket according to claim 2, characterized in that, The surface of the crossbeam (1) is provided with a groove (101) that extends along the direction of the crossbeam (1); the slider (102) is slidably disposed in the groove (101), and both ends of the groove (101) penetrate through the end of the crossbeam (1); the groove (101) forms the slide.

4. The camera mounting bracket according to claim 3, characterized in that, The crossbeam (1) has at least two grooves (101) on the same surface.

5. The camera mounting bracket according to claim 4, characterized in that, A connecting rod is installed on the camera mounting plate (3); one end of the connecting rod away from the camera mounting plate (3) extends into the groove (101) and connects with the slider (102).

6. The camera mounting bracket according to claim 4, characterized in that, The support leg (2) includes a connecting plate (201), a longitudinal beam (203), and a sliding plate (205); the two ends of the longitudinal beam (203) are respectively connected to the connecting plate (201) and the sliding plate (205); the connecting plate (201) is equipped with mounting screws (202); the sliding plate (205) is equipped with a connecting rod; the end of the connecting rod away from the sliding plate (205) extends into the groove (101) and connects with the slider (102).

7. The camera mounting bracket according to claim 6, characterized in that, A reinforcing beam (204) is provided between the connecting plate (201) and the longitudinal beam (203).

8. The camera mounting bracket according to claim 3, characterized in that, The slide is equipped with detachable end caps at both ends.

9. The camera mounting bracket according to claim 3, characterized in that, The opening width of the groove (101) is smaller than the width of the slider (102) in the direction perpendicular to the extension of the crossbeam (1).

10. A camera assembly, characterized in that, Includes a camera mounting bracket as described in any one of claims 1-9; a camera is mounted on the camera mounting plate (3) of the camera mounting bracket.