A fixing support and a vehicle-mounted rail image acquisition device

By employing a multi-point adsorption fixation and flexible adjustment mechanism, the problem of limited camera position and angle adjustment was solved, thereby improving stability and image acquisition quality, adapting to different curvature variations on vehicle surfaces, and reducing safety hazards.

CN224364620UActive Publication Date: 2026-06-16INNER MONGOLIA JINHUA PORT LOGISTICS CO LTD CHIFENG RAILWAY BRANCH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
INNER MONGOLIA JINHUA PORT LOGISTICS CO LTD CHIFENG RAILWAY BRANCH
Filing Date
2025-08-14
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

Traditional camera fixing methods have limited position and angle adjustment, poor installation stability, and cannot adapt to the curvature changes of different vehicle surfaces, affecting image acquisition quality and posing safety hazards.

Method used

By employing a multi-point adsorption fixation method combined with a flexible adjustment mechanism, the camera can be flexibly adjusted and stably adsorbed at multiple angles through the mounting base, adjustable mounting parts, and adsorption parts, adapting to the curvature changes of different vehicle body surfaces.

Benefits of technology

It improves the installation stability and image acquisition quality of the camera, ensures the safety and flexibility of the fixed structure, adapts to different vehicle surfaces, and reduces the risk of loosening and falling off.

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Abstract

The utility model discloses a fixed support and vehicle track image acquisition equipment, and fixed support includes installation base, at least two adjustable installation spare and at least two suction accessories, one side of installation base is equipped with the installation surface for with bearing main part contact, at least two adjustable installation spares are arranged respectively in the both sides of installation base, and it has the rotating end of rotation connection with installation base, and the installation end that can rotate around rotating end perpendicularly and / or parallel to installation surface, at least two suction accessories are connected respectively the installation end of each adjustable installation spare, and it has adsorption surface, and the multi -point adsorption fixed mode of device adoption cooperates the flexible adjusting mechanism, can carry out multi -angle flexible adjustment to fixed position, makes the installation of video camera can adapt to the curvature variation of different vehicle body surface, ensures the installation stability and image acquisition quality.
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Description

Technical Field

[0001] This utility model relates to the field of railway maintenance technology, specifically to a fixed bracket and an on-board track image acquisition device. Background Technology

[0002] With the rapid growth of railway transport volume, the safety and reliability of railway infrastructure face severe challenges. Traditional railway line inspection mainly relies on manual inspection, which has inherent drawbacks such as low inspection efficiency, high labor intensity, and strong subjectivity, making it difficult to comprehensively detect minor track damage or potential hazards. Especially against the backdrop of the rapid development of high-speed railways and heavy-haul railways, manual inspection can no longer meet the needs of efficient operation and maintenance of modern railways.

[0003] In recent years, breakthroughs in machine vision and artificial intelligence technologies have provided new solutions for track inspection. For example, patent CN104331910A discloses a machine vision-based track obstacle detection system that uses an onboard camera mounted on the train's engine to acquire video images and detect obstacles. Of course, the acquired image information can also be used for tasks such as detecting track surface defects.

[0004] However, traditional camera mounting typically uses bolts or rigid connections, which limits the adjustment of the mounting position and angle, preventing flexible multi-degree-of-freedom adjustments. Since various vehicle surfaces exhibit varying degrees of curvature, this rigid connection method can prevent complete contact between the mounting point and the vehicle body surface, resulting in poor installation stability. This not only affects image acquisition quality but may also lead to safety hazards such as loosening or even detachment of the mounting structure. Utility Model Content

[0005] The purpose of this invention is to overcome the above-mentioned technical deficiencies and propose a fixed bracket and vehicle-mounted track image acquisition device to solve the technical problems of limited camera fixed position and angle adjustment and poor installation stability in the prior art.

[0006] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0007] In a first aspect, the present invention provides a fixed bracket, including a mounting base, at least two adjustable mounting components, and at least two suction components; one side of the mounting base is provided with a mounting surface for contacting a load-bearing body; at least two adjustable mounting components are respectively disposed on both sides of the mounting base, each having a rotating end rotatably connected to the mounting base, and a mounting end capable of rotating about the rotating end perpendicularly and / or parallel to the mounting surface; at least two suction components are respectively connected to the mounting ends of each of the adjustable mounting components, each having a suction surface for adsorbing and fixing to the load-bearing body.

[0008] In some embodiments, at least two of the adsorption elements include at least one of a magnetic adsorption assembly or a vacuum suction cup structure.

[0009] In some embodiments, the fixed bracket further includes a rotating connector, which is connected to the side of the mounting base opposite to the mounting surface. The rotating end of the adjustable mounting member has a connecting slot, which is sleeved with the rotating connector, so that the mounting end can rotate around the rotating connector in a plane perpendicular to and / or parallel to the mounting surface.

[0010] In some embodiments, the rotating connector includes a base connecting end and an abutting fixing end. The base connecting end is threadedly connected to the mounting base, and the abutting fixing end is connected to the abutting fixing end for displacement relative to the rotating end of the adjustable mounting member as the base connecting end moves helically on the mounting base.

[0011] In some embodiments, the connecting slot extends along the length of the adjustable mounting member, and the width of the connecting slot is greater than the radial dimension of the base connecting end and less than the radial dimension of the abutting fixing end.

[0012] In some embodiments, the fixing bracket further includes a position adjustment member, which connects the mounting end of the adjustable mounting member and the suction member, and is used to adjust the position of the suction member relative to the mounting end.

[0013] In some embodiments, the mounting base includes a plurality of splicing bases, which are detachably connected and form a fixed area between the plurality of splicing bases for mounting the subject to be installed.

[0014] In some embodiments, the rotating connectors are respectively disposed at the connection points of two adjacent splicing seats and are fixedly connected to the two splicing seats.

[0015] In some embodiments, a soft pad is provided on the mounting surface of the splicing base.

[0016] Secondly, this utility model also provides a vehicle-mounted track image acquisition device, including a fixed bracket as described in any one of the above and a main body to be installed, wherein the main body to be installed includes an acquisition camera.

[0017] Compared with existing technologies, the fixed bracket and vehicle-mounted track image acquisition device provided by this utility model, by setting up a mounting base, at least two adjustable mounting parts, and at least two suction components, allows the rotating end of the adjustable mounting parts to rotate flexibly on the mounting base. This allows the mounting end and its suction components to rotate and adjust relative to the mounting base in multiple directions, enabling the suction components to adapt to different curvature changes on the vehicle body surface for suction fixation, ensuring installation stability and image acquisition quality. Simultaneously, the setting of at least two adjustable mounting parts and at least two suction components also provides a multi-point suction fixation method, further enhancing the fixation effect and stability between the object to be installed and the supporting body. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the fixed bracket and vehicle-mounted track image acquisition device provided in this embodiment of the utility model;

[0019] Figure 2 This is a top view of the fixed bracket and vehicle-mounted track image acquisition device provided in this embodiment of the utility model;

[0020] Figure 3 This is a top view of the fixed bracket and vehicle-mounted track image acquisition device provided in this embodiment of the utility model;

[0021] Figure 4 This is a front view structural schematic diagram of the fixed bracket and vehicle-mounted track image acquisition device provided in this embodiment of the utility model;

[0022] Figure 5 This is a front view sectional view of the fixed bracket and vehicle-mounted track image acquisition device provided in this embodiment of the utility model;

[0023] Figure 6 This is a schematic cross-sectional view of the mounting base of the fixed bracket provided in this embodiment of the utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Mounting base; 11. First splicing base; 12. Second splicing base; 13. Locking groove; 14. Soft pad; 2. Adjustable mounting component; 21. Rotating end; 211. Arc plate; 2111. Connecting slot; 22. Mounting end; 221. Extension plate; 3. Adsorption component; 31. Permanent magnet; 32. Mounting support; 4. Rotating connector; 41. Base connecting end; 42. Abutment fixing end; 5. Position adjustment component; 51. Adjusting screw; 52. Adjusting block; 6. Acquisition camera. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0027] To address the technical problems of limited camera positioning and angle adjustment, resulting in poor installation stability, this invention provides a fixed bracket and a vehicle-mounted track image acquisition device. The multi-point adsorption fixing method combined with a flexible adjustment mechanism allows for flexible multi-angle adjustment of the fixed position, enabling the camera installation to adapt to different curvature variations on vehicle surfaces, thus ensuring installation stability and image acquisition quality.

[0028] It should be noted that the fixed bracket described in this utility model is used for, but not limited to, the installation of vehicle-mounted track image acquisition equipment. For ease of explanation, this utility model only uses the application of the fixed bracket to the installation of vehicle-mounted track image acquisition equipment as an example. The principle of the fixed bracket in the installation of other types of equipment is essentially the same as that in the installation of vehicle-mounted track image acquisition equipment, and will not be described in detail here.

[0029] Please see Figures 1 to 3 In a first aspect, embodiments of this application provide a fixing bracket, including a mounting base 1, at least two adjustable mounting members 2, and at least two suction members 3; the mounting base 1 is disposed on a body to be installed, and a mounting surface is provided on one side of the mounting base 1, the mounting surface being used to contact and fix the body to be installed; at least two adjustable mounting members 2 are respectively disposed on both sides of the mounting base 1, each having a rotating end 21 rotatably connected to the mounting base 1, and a mounting end 22 capable of rotating about the rotating end 21 perpendicularly and / or parallel to the mounting surface; at least two suction members 3 are respectively connected to the mounting ends 22 of each adjustable mounting member 2, each having a suction surface corresponding to the mounting surface of the mounting base 1, for adsorbing and fixing to the body.

[0030] In this device, the mounting base 1 serves as the basic support structure, connecting the main body to be installed. During installation, the mounting surface on one side of the mounting base 1 contacts the supporting body. The rotating end 21 of the adjustable mounting component 2 can rotate on the mounting base 1, causing the mounting end 22 to rotate around the rotating end 21 for adjustment. At least two adsorption components 3 are respectively installed on each adjustable mounting component 2, serving as the fixed position of the device. They can be adsorbed and fixed to the supporting body through their adsorption surfaces, thus achieving fixed installation of the main body to be installed. During actual installation, the operator can adjust the position and angle of the mounting end 22 of the adjustable mounting component 2 according to the shape of the supporting body and installation requirements, thereby adjusting the position and angle of the adsorption surface of the adsorption component 3 to ensure that the adsorption component 3 can closely fit the supporting body and provide stable adsorption force. This allows the device to flexibly install and fix the vehicle-mounted track image acquisition equipment. The installation method is simple and quick, with high flexibility and adaptability, able to adapt to different curvature changes on the vehicle body surface, ensuring installation stability.

[0031] It should be noted that in this embodiment, the subject to be installed is the camera 6, and the supporting body is the train's windshield or vehicle body. Correspondingly, the adsorption component 3 adopts a magnetic adsorption assembly, a vacuum suction cup structure, or a combination of a magnetic adsorption assembly and a vacuum suction cup structure to adapt to different installation positions on the train. For example, when the installation position is a relatively flat and magnetic metal surface, the adsorption component 3 can use a magnetic adsorption assembly to achieve stable adsorption using magnetic force; while when the installation position is a smooth non-magnetic material, such as glass, the adsorption component 3 can use a vacuum suction cup structure, which uses a vacuum pump to extract air between the suction cup and the supporting body to form negative pressure adsorption, thereby achieving a firm fixation effect. If the installation position environment is complex, containing both magnetic and non-magnetic areas, the adsorption component 3 can also adopt a combination of a magnetic adsorption assembly and a vacuum suction cup structure to cope with different installation conditions.

[0032] Preferably, please refer to Figures 1 to 5 In this embodiment, the magnetic adsorption assembly includes a permanent magnet 31 and a mounting bracket 32. The permanent magnet 31 is disposed on the mounting bracket 32 ​​and mounted on the mounting bracket 32. The mounting bracket 32 ​​is connected to the adjustable mounting component 2, and can be attracted and fixed to the train body by the magnetic force of the permanent magnet 31. The adsorption surface of the permanent magnet 31 is preferably planar. Of course, in order to adapt to magnetic metal surfaces with a certain curvature, the magnetic adsorption surface of the magnetic adsorption assembly can be designed as a curved structure.

[0033] In some possible embodiments, the vacuum suction cup structure includes a suction cup body and a connecting component. The suction cup body has an adsorption surface for tightly fitting with the carrier body to form a negative pressure adsorption. One end of the connecting component is connected to the suction cup body, and the other end is connected to the mounting end 22 of the adjustable mounting component 2 for mounting the suction cup body onto the adjustable mounting component 2.

[0034] In some possible embodiments, please refer to Figures 1 to 3 The fixed bracket also includes a rotating connector 4, through which the adjustable mounting member 2 is rotatably connected to the mounting base 1. Specifically, the rotating connector 4 is connected to the side of the mounting base 1 opposite to the mounting surface. The rotating end 21 of the adjustable mounting member 2 has a connecting slot 2111, which is sleeved with the rotating connector 4, allowing the mounting end 22 to rotate around the rotating connector 4 in a plane perpendicular to and / or parallel to the mounting surface.

[0035] Please see Figures 1 to 5 In one possible embodiment, the rotating end 21 of the adjustable mounting member 2 is configured as an arc-shaped plate 211, and its mounting end 22 is an extension plate 221 located at the edge of the arc-shaped plate 211. The extension plate 221 has a connecting hole for connecting the adsorption member 3, and the arc-shaped plate 211 has a connecting slot 2111 extending along its length. The rotating connecting member 4 is a bolt structure, with the screw portion forming the base connecting end 41 and the nut portion forming the abutting fixing end 42. The width of the connecting slot 2111 is greater than the radial dimension of the screw portion and less than the radial dimension of the nut portion. The arc-shaped plate 211 is fitted onto the screw portion through the connecting slot 2111, and the nut portion at one end of the screw portion is used to prevent the arc-shaped plate 211 from detaching. The mounting base 1 has a threaded hole that matches the screw part. The screw part is threadedly connected to the threaded hole and can rotate along the thread direction on the mounting base 1. The nut part is used to move axially with the screw part on the mounting base 1. When it moves axially, it can move relative to the arc plate 211 and is used to abut and limit the arc plate 211.

[0036] During installation, the position of the arc-shaped plate 211 on the mounting base 1 can be adjusted by utilizing the sleeve fit between the arc-shaped plate 211 and the bolt structure. Adjustment methods include rotating the arc-shaped plate 211 circumferentially along the bolt structure and fine-tuning the position of the extension plate 221 axially along the bolt structure, ensuring that the adsorption surface of the adsorption component 3 conforms to the installation surface of the train. After locating the adjustable mounting component 2, the operator can tighten the bolt structure, causing the nut to press the arc-shaped plate 211 against the mounting base 1, thus limiting and fixing the arc-shaped plate 211. At this point, the position and angle of the adjustable mounting component 2 are locked, allowing the adsorption component 3 to stably adsorb the train.

[0037] Of course, in other possible embodiments, the rotating connector 4 and the adjustable mounting part 2 can also adopt other structural forms. For example, the rotating connector 4 adopts a rotating shaft, and the adjustable mounting part 2 adopts a straight plate structure. The rotating shaft is fixed on the mounting base 1. The straight plate is also provided with a connecting slot 2111 for sleeve engagement with the rotating shaft. It can be sleeved on the rotating shaft and rotate around the rotating shaft in a plane parallel to the mounting surface. Its angle can be adjusted when rotating.

[0038] To further improve the compatibility of this mounting bracket with the train's mounting surface, please refer to... Figure 1 , Figure 4 and Figure 5 In some possible embodiments, the fixing bracket further includes a position adjustment component 5, which connects the mounting end 22 of the adjustable mounting component 2 and the suction component 3. The position adjustment component 5 is used to adjust the position of the suction component 3 relative to the mounting end 22 so that the suction surface of the suction component 3 can more precisely conform to the mounting surface of the train. After the position of the adjustable mounting component 2 is fixed, if there is still a gap between the suction surface of the suction component 3 and the mounting surface of the train, the operator can fine-tune the position of the suction component 3 using the position adjustment component 5 to ensure that the suction surface of the suction component 3 is completely in contact with the mounting surface of the train.

[0039] In one embodiment, the position adjustment component 5 includes an adjustment screw 51 and an adjustment block 52. The adjustment screw 51 passes through the extension plate 221 and is threadedly connected to the extension plate 221. Its bottom end is connected to the mounting support 32 of the adsorption component 3, and its top end is connected to the adjustment block 52. The adjustment screw 51 can be rotated using the adjustment block 52, causing the adjustment screw 51 to rotate along the thread direction on the extension plate 221. Since the bottom end of the adjustment screw 51 is connected to the mounting support 32 of the adsorption component 3, the rotation of the adjustment screw 51 can drive the permanent magnet 31 to move up and down, thereby realizing the position adjustment of the permanent magnet 31 relative to the mounting end 22.

[0040] Of course, in other possible embodiments, the position adjusting member 5 can also adopt other structural forms. For example, the position adjusting member 5 may include a slide rail and a slider. The slide rail is fixedly connected to the extension plate 221, and the slider is slidably disposed on the slide rail. The adsorption member 3 is connected to the slider through the mounting support 32. The operator can push the slider along the slide rail direction, so that the slider slides to a suitable position on the slide rail and then is fixed, thereby driving the adsorption member 3 to adjust its position on the mounting end 22.

[0041] In some possible embodiments, the mounting base 1 includes multiple splicing brackets that are detachably connected, and a fixed area is formed between the multiple splicing brackets for mounting the main body to be installed. The mounting base 1, through the splicing combination of multiple splicing brackets, facilitates the independent replacement of damaged acquisition cameras 6, reducing maintenance costs.

[0042] Preferably, please refer to Figure 1 and Figure 6 In this embodiment, two splicing bases are provided, including a first splicing base 11 and a second splicing base 12. Both the first splicing base 11 and the second splicing base 12 are L-shaped structures, and they are spliced ​​together to form a rectangular mounting base 1. A locking groove 13 is provided in the middle of one side of the first splicing base 11 and the second splicing base 12, forming a fixed area when they are connected together. Two rotating connectors 4 are provided, respectively located at the connection points on both sides of the first splicing base 11 and the second splicing base 12. The screw portion of the rotating connector 4 is threadedly connected to the corresponding threaded holes on the first splicing base 11 and the second splicing base 12, which can simultaneously fix the position of the first splicing base 11 and the second splicing base 12.

[0043] In use, the first splicing base 11 and the second splicing base 12 are spliced ​​and installed on both sides of the acquisition camera 6, so that the acquisition camera 6 is firmly clamped in the fixed area. Then, the screw part of the rotating connector 4 is used to pass through the connecting slot 2111 and connect to the threaded holes of the first splicing base 11 and the second splicing base 12 to fix the mounting base 1 and the acquisition camera 6.

[0044] Of course, in other possible embodiments, the number and shape of the splicing brackets can also be adapted. For example, for a specially shaped acquisition camera 6, three or more splicing brackets can be designed to form a fixed section that matches the shape of the main body to be installed by splicing at different angles and positions.

[0045] Further, please refer to Figures 4 to 6 In some possible embodiments, a soft pad 14 is provided on the mounting surface at the bottom of the splicing base. The soft pad 14 may be made of rubber, silicone or other elastic materials, which can buffer the vibration generated during train operation to a certain extent, thereby protecting the acquisition camera 6.

[0046] Secondly, this application also provides an on-board track image acquisition device, including a fixed bracket as described in any of the above embodiments and a main body to be installed. The main body to be installed includes an acquisition camera 6. The acquisition camera 6 is a spherical camera capable of rotating 360 degrees to capture comprehensive track image information.

[0047] In some possible embodiments, the vehicle-mounted track image acquisition device also includes a power supply, a processor, a memory, and a wireless communication module. The power supply provides power to the entire device, ensuring the acquisition camera 6 can operate continuously and stably. The processor, as the core control unit of the device, is responsible for processing the acquired image data, executing image recognition and analysis algorithms, and controlling the coordinated operation of various components. The memory stores image data, processing results, and algorithm programs. The wireless communication module is responsible for transmitting the processed image data or analysis results to a remote monitoring center in real time, enabling remote monitoring and management.

[0048] This invention, by setting up a mounting base 1, at least two adjustable mounting parts 2, and at least two suction units 3, allows the rotating end 21 of the adjustable mounting part 2 to rotate flexibly on the mounting base 1. This allows the mounting end 22 and its suction unit 3 to be adjusted relative to the mounting base 1 in multiple directions, enabling the suction unit 3 to adapt to different curvature variations on vehicle surfaces for effective suction and fixation, ensuring installation stability and image acquisition quality. Furthermore, the arrangement of at least two adjustable mounting parts 2 and at least two suction units 3 provides a multi-point suction fixation method, further enhancing the fixation effect and stability between the object to be installed and the supporting structure.

[0049] In the description of this application, it should be noted that the terms "upper" and "lower," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0050] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0051] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A fixed bracket, characterized in that, include: Mounting base, configured to connect to the main body to be installed, with a mounting surface on one side for contacting the supporting body; At least two adjustable mounting components are respectively disposed on both sides of the mounting base, each having a rotating end rotatably connected to the mounting base, and a mounting end capable of rotating about the rotating end perpendicularly and / or parallel to the mounting surface; and At least two adsorption elements are respectively connected to the mounting ends of each of the adjustable mounting elements, and each has an adsorption surface for adsorbing and fixing to the supporting body.

2. The fixing bracket according to claim 1, characterized in that, At least two of the adsorption elements include at least one of a magnetic adsorption assembly or a vacuum suction cup structure.

3. The fixing bracket according to claim 1, characterized in that, It also includes a rotating connector, which is connected to the side of the mounting base opposite to the mounting surface. The rotating end of the adjustable mounting component has a connecting slot, which is sleeved with the rotating connector, so that the mounting end can rotate around the rotating connector in a plane perpendicular to and / or parallel to the mounting surface.

4. The fixing bracket according to claim 3, characterized in that, The rotating connector includes a base connecting end and an abutting fixing end. The base connecting end is threadedly connected to the mounting base, and the abutting fixing end is connected to the abutting fixing end, and is used to generate displacement relative to the rotating end of the adjustable mounting component as the base connecting end moves spirally on the mounting base.

5. The fixing bracket according to claim 4, characterized in that, The connecting slot extends along the length of the adjustable mounting component, and the width of the connecting slot is greater than the radial dimension of the base connecting end and less than the radial dimension of the abutting fixing end.

6. The fixing bracket according to claim 1, characterized in that, It also includes a position adjustment component, which connects the mounting end of the adjustable mounting component and the suction component, and is used to adjust the position of the suction component relative to the mounting end.

7. The fixing bracket according to claim 4, characterized in that, The mounting base includes multiple splicing seats, which are detachably connected, and a fixed area is formed between the multiple splicing seats for installing the main body to be installed.

8. The fixing bracket according to claim 7, characterized in that, The rotating connectors are respectively disposed at the connection points of two adjacent splicing seats and are fixedly connected to the two splicing seats.

9. The fixing bracket according to claim 8, characterized in that, A soft pad is provided on the mounting surface of the splicing base.

10. A vehicle-mounted track image acquisition device, characterized in that, It includes the fixed bracket and the main body to be installed as described in any one of claims 1-9, wherein the main body to be installed includes a camera.