Railway track detection robot

Abstract

The utility model discloses a railway track detection robot, which relates to the technical field of track detection, and comprises a walking platform, a track bed inspection and detection system arranged on the walking platform and an upper computer, the walking platform comprises a chassis, the front end and the rear end of the chassis are respectively connected with a pair of front wheels and a pair of rear wheels; the vehicle head is arranged at the front end of the chassis, a concave cavity is formed in the side, opposite to the cushion, of the vehicle head, and the upper computer is arranged in the concave cavity; the track bed inspection and detection system comprises a line-scan digital camera which is composed of a left high-definition camera device, a middle high-definition camera device and a right high-definition camera device so as to achieve image collection of the whole section of a track. According to the track detection robot disclosed by the utility model, continuous image acquisition and storage can be carried out on the surfaces of a steel rail and a ballast bed by adopting the linear array camera under a dynamic condition, and a disease image can be intelligently identified, so that a better tunnel bed defect detection effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of track detection, in particular to a railway track detection robot. Background Art

[0002] Railway transportation is one of the most effective land transportation modes at present, and undertakes heavy passenger and freight transportation tasks. With the speed increase of existing railway lines in my country to 200km / h, the large-scale construction and operation of high-speed railways, the continuous development and commissioning of railway track equipment, the continuous increase in railway traffic density, and the continuous shortening of traffic spacing, the rapid development of railways has put forward higher requirements for the line maintenance and repair work of the engineering system.

[0003] At present, there are many types of engineering inspection equipment with single functions. Some inspection equipment has backward inspection methods and slow inspection speed. With the rapid development of railway line equipment, the demand for manpower in the use and maintenance of these inspection equipment is also increasing. In order to scientifically and rationally guide line maintenance and daily maintenance and ensure that line equipment is in good condition, the emergence of a high-speed, efficient, and comprehensive inspection equipment that can fully integrate and fuse early single-function inspection equipment and inspection data has become inevitable.

[0004] Research on comprehensive inspection equipment at home and abroad has achieved remarkable results. my country's high-speed comprehensive inspection train, Italy's "Archimedes" comprehensive inspection train, France's MGV high-speed comprehensive inspection train, Germany's Geo-Xpress comprehensive inspection vehicle, and Japan's East-I high-speed comprehensive inspection train all integrate a variety of inspection equipment to detect the status of tracks, contact lines, and communication signals. The advantage of comprehensive inspection equipment is that multiple systems work efficiently and synchronously, which can greatly save the window time occupied by inspections. At the same time, it can carry out spatial synchronous evaluation and analysis of the status of various railway equipment and facilities. Therefore, it is favored by railway operation and maintenance departments in various countries around the world.

[0005] At present, all comprehensive inspection vehicles are large-scale inspection vehicles. Due to factors such as high cost of use and long window time, large-scale inspection vehicles cannot be used for daily engineering inspections. The demand for inspection robots equipped with inspection modules on small inspection platforms is more urgent. Utility Model Content

[0006] In view of the problems in the prior art, the utility model provides a small and lightweight railway track inspection robot to solve the current problems of high railway track inspection costs and the inability to meet daily engineering inspection needs.

[0007] In order to achieve the above-mentioned purpose, the railway track inspection robot comprises a running platform, a track bed inspection system arranged on the running platform, and a host computer:

[0008] The running platform includes:

[0009] A chassis, with a pair of front wheels and a pair of rear wheels at its front and rear ends respectively;

[0010] The front part of the vehicle is arranged at the front end of the chassis and the upper computer is arranged in the front part of the vehicle;

[0011] The track bed inspection system includes:

[0012] The line array camera is composed of a linear arrangement of a left high-definition camera device, a middle high-definition camera device and a right high-definition camera device, and the left high-definition camera device, the right high-definition camera device and the middle high-definition camera device are responsible for shooting the images of the left and right thirds of the track and the middle third of the track respectively.

[0013] Preferably, the traveling platform drives a hub motor as a driving motor.

[0014] Preferably, the power supply is a vehicle-mounted lithium battery.

[0015] Furthermore, the traveling platform also includes:

[0016] The seat cushion is arranged above the chassis, a support frame is arranged at the bottom of the seat cushion, the bottom end of the support frame is fixedly connected to the chassis, a fence handrail is arranged on the support frame, and a backrest is arranged on the fence handrail behind the seat cushion.

[0017] Furthermore, a peripheral frame is provided on the chassis behind the seat cushion, and the peripheral frame is connected to the supporting frame as a whole to enclose a storage space.

[0018] Furthermore, the track inspection robot also includes:

[0019] The laser radar detection equipment is installed on the front of the vehicle.

[0020] Furthermore, the track bed inspection and detection system also includes a photoelectric encoder, an industrial computer and a data acquisition card. The encoder is arranged on the front wheel hub motor and is used to instantly detect the running speed of the platform; the data acquisition card is used to collect the signal of the encoder, and transmit the data signal to the host computer for subsequent processing through the collection and conversion of the data acquisition card; the encoder is driven by the running wheel axle provided in the front wheel to synchronously trigger the linear array camera to achieve seamless splicing of the longitudinal image of the track, realize the longitudinal full-length collection of the entire section of the high-speed railway track, and send it to the industrial computer through the data acquisition card to process the image in real time.

[0021] Furthermore, the track bed inspection and detection system also includes two laser light sources, which are respectively arranged between the left high-definition camera device and the middle high-definition camera device and between the middle high-definition camera device and the right high-definition camera device.

[0022] Furthermore, the roadbed inspection and detection system also includes a rectangular frame horizontally hung on the lower front side of the vehicle head, and the linear array camera and the laser light source are both arranged on the rectangular frame.

[0023] Furthermore, an upper vertical groove and a lower vertical groove are respectively provided at the lower parts of both sides of the front side of the vehicle head, an upper shock absorbing block and two upper shock absorbers respectively connected to the top and bottom of the upper shock absorbing block are provided in the upper vertical groove, the side of the upper shock absorbing block is in contact with and connected to the inner side wall of the upper vertical groove, one end of the upper shock absorber is fixedly connected to the end of the upper vertical groove, the other end of the upper shock absorber is fixedly connected to the upper shock absorbing block, and an upper hook is provided on the outer side of the upper shock absorbing block;

[0024] A lower shock absorbing block and two lower shock absorbers respectively connected to the top and bottom of the lower shock absorbing block are provided in the lower vertical grooves, the side of the lower shock absorbing block is in contact with the inner side wall of the lower vertical groove, one end of the lower shock absorber is fixedly connected to the end of the lower vertical groove, and the other end of the lower shock absorber is fixedly connected to the lower shock absorbing block, and a lower hook is provided on the outer side of the lower shock absorbing block;

[0025] A pair of vertical strip pads are provided on the back of the laser light source, and the laser light source is connected to the rectangular frame through the strip pads, and there is a gap between the two strip pads. When the rectangular frame is set at the front of the vehicle, the upper and lower side frames of the rectangular frame are synchronously hung on the upper hook and the lower hook respectively, and the upper hook and the lower hook are passed through the corresponding gap and abut against the strip pads on both sides of the gap.

[0026] Compared with the prior art, the beneficial effects of the embodiments of the present application include at least the following:

[0027] 1) The railway track inspection robot of the embodiment of the present application has a simple structure, a small size, a light weight, and a low manufacturing and use cost. It is convenient for the traveling platform to be transported on the track and to get on and off the track. By setting a linear array camera, it can meet the needs of the staff for daily railway track inspection (image acquisition);

[0028] 2) The track bed inspection system described in the embodiment of the present application can continuously capture and store images of the rail and track bed surface under dynamic conditions through the set linear array cameras (left high-definition camera device, middle high-definition camera device and right high-definition camera device), encoders, industrial computers, data acquisition cards and host computers, and the left high-definition camera device, the right high-definition camera device and the middle high-definition camera device are responsible for shooting the images of the left and right thirds of the track and the middle third of the track respectively, so as to realize the image acquisition of the whole section of the track;

[0029] 3) The embodiment of the present application uses a wheel hub motor as a power motor to build a machine travel platform. Whether it is front-wheel drive, rear-wheel drive or four-wheel drive, it can be realized relatively easily, so the use of the unmanned travel platform is more convenient and flexible;

[0030] 4) In the embodiment of the present application, by providing a support frame and a seat cushion backrest, the traveling platform can realize the riding function of the staff;

[0031] 5) The embodiment of the present application avoids unnecessary personal injury and damage to the traveling platform by providing a laser radar detection device, which is safer;

[0032] 6) The embodiment of the present application provides a rectangular frame and a shock-absorbing structure at the front of the vehicle, so that the overall disassembly and assembly and shock absorption of the linear array camera and the laser light source can be achieved more conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0034] Figure 1 This is a simplified three-dimensional structural diagram of the track detection robot of the utility model (front view);

[0035] Figure 2 This is a three-dimensional structural diagram (rear view) of the track detection robot of the utility model;

[0036] Figure 3 It is a schematic diagram of the arrangement structure of the line array camera in the utility model, to show the detection range of the camera at each position;

[0037] Figure 4 It is a three-dimensional structural diagram of the roadbed inspection and detection system of the utility model. In the figure, for the convenience of explanation, the roadbed inspection and detection system together with the upper and lower shock absorbing blocks and the upper and lower shock absorbers are separated from the vehicle head;

[0038] Figure 5 It is a three-dimensional structural diagram (rear view) of the utility model of the mid-track bed inspection and detection system together with the upper and lower shock-absorbing blocks and the upper and lower shock absorbers. In the figure, the rectangular frame is hung on the upper and lower hooks and connected thereto;

[0039] Figure 6 yes Figure 5 A partial enlarged view of the back of the laser light source. In the figure, for the convenience of explanation, the upper and lower hooks are separated from the rectangular frame.

[0040] Description of Figure Numbers:

[0041] 1. Traveling platform; 101. Chassis; 102. Front wheel; 103. Rear wheel; 104. Cushion; 105. Support frame; 106. Fence handrail; 107. Backrest; 108. External frame; 109. Car head; 110. Upper computer;

[0042] 2. Rails;

[0043] 3. Lidar detection equipment;

[0044] 4. Track bed inspection and detection system; 401. High-definition camera on the left; 402. High-definition camera in the middle; 403. High-definition camera on the right; 404. Laser light source; 405. Rectangular frame; 406. Upper vertical groove; 407. Lower vertical groove; 408. Upper shock-absorbing block; 409. Upper shock absorber; 410. Upper hook; 411. Lower shock-absorbing block; 412. Lower shock absorber; 413. Lower hook; 414. Strip pad.

[0045] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with the embodiments of the present application and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solution in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model.

[0047] See also Figure 1-Figure 2 As shown, an embodiment of the present application proposes a railway track inspection robot, which includes a running platform 1, a track bed inspection and detection system 4 arranged on the running platform 1, an industrial computer and a host computer 110, wherein the running platform 1 is set up on the rails 2 on both sides when in use, and the running platform 1 serves as a carrier of the track bed inspection and detection system 4.

[0048] In this embodiment, the track bed inspection and detection system 4 can use a linear array camera to continuously collect and store images of the rail and track bed surface under dynamic conditions, and then use the deep learning and image recognition technology in the prior art to quickly and intelligently identify the disease image from tens of kilometers and tens of thousands of image data, and generate a disease report, which records the location of the disease, the type of disease, and the picture of the disease in detail. The track bed inspection and detection system 4 is connected to the information management platform system and the command center system through the industrial computer. The information management platform system is used to formulate a detection plan. The management personnel manage the user and the line comprehensive detection robot terminal equipment according to the applied plan skylight, and the plan content includes detection line information, detection starting point mileage and detection end point mileage and other detection information, and forward data, record the execution of the plan, and count the detection results; the command center system is used to implement the detection plan, remotely monitor the terminal site situation, actively intervene and intervene in the terminal operation, and notify the personnel to recover the terminal at the end point of the operation. If necessary, the emergency disposal plan is initiated to recover the terminal, etc. The host computer 110, that is, the computer, is used to provide an operation interaction interface for the on-site detection personnel and display the feedback detection data and information to them.

[0049] In this embodiment, in order to reduce the weight of the traveling platform 1 and facilitate the transportation and access of the traveling platform 1, the components on the traveling platform 1 adopt a frame structure as much as possible, and are made of titanium alloy materials with high strength, good corrosion resistance and light weight to achieve the requirement of lightweight equipment. Specifically, the traveling platform 1 includes the following structures:

[0050] A rectangular chassis 101 is located in the middle and upper position of the railway tracks on both sides. A pair of front wheels 102 and a pair of rear wheels 103 are respectively installed at the front and rear ends of the chassis 101. When the equipment is in use, the front wheels 102 and the rear wheels 103 are arranged on the rails 2. The running platform 1 is driven by a hub motor as the driving motor. Compared with the differential motor, the weight of the running platform 1 can be greatly reduced, and a variety of complex driving modes can be realized. Since the hub motor has the characteristic of independent driving of a single wheel, it can be easily realized whether it is front-wheel drive, rear-wheel drive or four-wheel drive. Therefore, the unmanned running platform 1 selects a lighter and more flexible hub motor. During normal operation, the system defaults to using the front drive force. When there is a problem with the current drive force system, it can switch to the backup power system, that is, the rear drive, to ensure that the terminal equipment can successfully complete the operation or evacuate safely in the skylight point. It also supports four-wheel drive to enhance climbing ability. The power supply is powered by an on-board lithium battery. Specifically, it is equipped with two lithium battery packs (48V / 60Ah). The weight of each battery is no more than 25kg, the charging time is no more than 6 hours, and the continuous detection is no less than 60km or 4h.

[0051] Two seat cushions 104 are arranged side by side in the middle position above the chassis 101, and the bottom is fixed by a supporting frame 105. The bottom end of the supporting frame 105 is fixed to the chassis 101, and a fence handrail 106 is also provided on the outer periphery of the top of the supporting frame 105, and a backrest 107 is provided on the fence handrail 106 behind each seat cushion 104; in addition, an outer frame 108 is provided on the chassis 101 behind the seat cushion 104, and the outer frame 108 is connected to the supporting frame 105 as a whole, and the space enclosed by the two is used for placing articles, equipment, devices and other tools.

[0052] A front end 109 is provided at the front end of the chassis 101, and a concave cavity is provided on a side of the front end 109 opposite to the seat cushion 104, and the host computer 110 is built in the concave cavity;

[0053] A laser radar detection device 3 is arranged on the top of the vehicle front 109 and is used to stop the running and detection operation of the running platform 1 when encountering an obstacle to avoid unnecessary personal injury and damage to the running platform 1. The laser radar detection device 3 is used to detect people and objects within the scanning range and send the detection results to the host computer 110.

[0054] In this embodiment, the track bed inspection system 4 includes a photoelectric encoder, a pulse counter, an imaging controller, a camera, a laser light source 404 and a data acquisition card, wherein the encoder is installed on the hub motor of the front wheel 102 for real-time detection of the platform's running speed, and the data acquisition card is used to collect the encoder's signal, and the data signal is transmitted to the host computer 110 for subsequent processing through the acquisition and conversion of the data acquisition card; the track bed inspection system 4 performs linear array imaging on the track surface, and then combines the photoelectric encoder pulse count and wheel rotation direction information to perform high-precision mileage counting. Through deep learning and image recognition technology, intelligent identification of surface defects of rails, track components and sleepers is achieved.

[0055] It should be noted that the principle of the track bed inspection system 4 is based on machine vision image acquisition and recognition technology. The camera uses a linear array camera to collect images. By utilizing the camera frame and lens angle relationship, multiple cameras are arranged on the same section of the track. At the same time, according to the shooting characteristics of the linear array camera, the running wheel axle in the front wheel 102 drives the encoder to synchronously trigger the camera to achieve seamless splicing of the longitudinal image of the track, realize the longitudinal full-length acquisition of the entire section of the high-speed railway track, and send it to the embedded industrial computer through the data acquisition card to process the image in real time. Figure 3As shown, by calculating the acquisition position and lens angle, this embodiment preferably uses three linear array cameras to realize the image acquisition of the whole section of the track, namely the left high-definition camera device 401, the middle high-definition camera device 402, and the right high-definition camera device 403. Within the track detection width of 2600mm, the left and right high-definition cameras and the middle high-definition camera device 402 are responsible for shooting the images of the left and right thirds of the track and the middle third of the track respectively. The overall appearance of the entire track including rails, fasteners, sleepers (track plates) and roadbed can be seen in the left, middle and right images. The left and right high-definition cameras are responsible for shooting the local state of the left rail surface, the inner and outer fasteners of the left rail and the right rail surface, the inner and outer fasteners of the right rail, which is the most concentrated and complex area of ​​the track components.

[0056] In this embodiment, two laser light sources 404 are provided for fill-in lighting during the roadbed inspection process. The two laser light sources 404 are respectively provided between the left high-definition camera device 401 and the middle high-definition camera device 402 and between the middle high-definition camera device 402 and the right high-definition camera device 403.

[0057] In this embodiment, the installation of the linear array camera and the laser light source is as follows: Figure 4-Figure 6 As shown, the roadbed inspection and detection system 4 also includes a rectangular frame 405 horizontally hung at the lower front part of the head 109, and three linear array cameras and two laser light sources 404 are installed on the rectangular frame 405 according to the above arrangement. Specifically, an upper vertical groove 406 and a lower vertical groove 407 are respectively provided at the lower parts of the two sides of the front side of the head 109; an upper shock absorbing block 408 and two upper shock absorbers 409 respectively connected to the top and bottom of the upper shock absorbing block 408 are provided in each upper vertical groove 406, and the side of the upper shock absorbing block 408 is in contact with the inner side wall of the upper vertical groove 406, and one end of the upper shock absorber 409 is fixed Connected to the end of the upper vertical groove 406, the other end of the upper shock absorber 409 is fixedly connected to the upper shock absorbing block 408, and an upper hook 410 is provided on the outer side of the upper shock absorbing block 408; similarly, a lower shock absorbing block 411 and two lower shock absorbers 412 respectively connected to the top and bottom of the lower shock absorbing block 411 are provided in each lower vertical groove 407, the side of the lower shock absorbing block 411 is in contact with the inner wall of the lower vertical groove 407, one end of the lower shock absorber 412 is fixedly connected to the end of the lower vertical groove 407, and the other end of the lower shock absorber 412 is fixedly connected to the lower shock absorbing block 411, and a lower hook 413 is provided on the outer side of the lower shock absorbing block 411.

[0058] In this embodiment, both the upper shock absorber 409 and the lower shock absorber 412 adopt the existing ZD type damping spring shock absorber.

[0059] In this embodiment, a pair of vertical strip pads 414 are provided on the back of the two laser light sources 404, and the laser light source 404 is connected to the rectangular frame 405 through the strip pads 414, and there is a gap between the two strip pads 414. When the rectangular frame 405 is set at the front of the vehicle head 109, the upper and lower sides of the rectangular frame 405 are synchronously hung on the upper hook 410 and the lower hook 414 respectively, and the upper hook 410 and the lower hook 414 are inserted in the corresponding gap and abut against the strip pads 414 on both sides of the gap to limit the lateral movement of the rectangular frame 405.

[0060] In the embodiments of the present application, industrial computers, host computers, hub motors, lithium batteries, encoders, pulse counters, imaging controllers, camera equipment, laser light sources, data acquisition cards, lidars, shock absorbers and other devices are all prior art and are also common knowledge of those skilled in the art. Since the technical problem or inventive concept to be solved by the present application is not this, it is only a direct use of the above-mentioned devices. Therefore, the present utility model will no longer elaborate on its structural principles. On this basis, it should be deemed that the technical solution disclosed in the embodiments of the present application is clear and complete.

[0061] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0062] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0063] In addition, the technical means or features mentioned in the embodiments of the present application may be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in the field. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0064] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A railway track inspection robot, characterized in that: It includes a running platform, a track bed inspection system installed on the running platform, and a host computer: The running platform includes: A chassis, with a pair of front wheels and a pair of rear wheels at its front and rear ends respectively; The front part of the vehicle is arranged at the front end of the chassis and the upper computer is arranged in the front part of the vehicle; The track bed inspection and detection system comprises: The line array camera is composed of a linear arrangement of a left high-definition camera device, a middle high-definition camera device and a right high-definition camera device, and the left high-definition camera device, the right high-definition camera device and the middle high-definition camera device are responsible for shooting images of the left and right thirds of the track and the middle third of the track respectively.

2. The railway track inspection robot according to claim 1, characterized in that: The traveling platform drive uses a hub motor as a driving motor.

3. The railway track inspection robot according to claim 1, characterized in that: The power supply is provided by the vehicle-mounted lithium battery.

4. The railway track inspection robot according to claim 1, characterized in that: The walking platform also includes: The seat cushion is arranged above the chassis, a support frame is arranged at the bottom of the seat cushion, the bottom end of the support frame is fixedly connected to the chassis, a fence handrail is arranged on the support frame, and a backrest is arranged on the fence handrail behind the seat cushion.

5. The railway track inspection robot according to claim 4, characterized in that: An outer frame is arranged on the chassis behind the seat cushion, and the outer frame is connected with the supporting frame as a whole to enclose a storage space.

6. The railway track inspection robot according to claim 1, characterized in that: Also includes: The laser radar detection equipment is installed on the front of the vehicle.

7. The railway track inspection robot according to claim 1, characterized in that: The track bed inspection and detection system also includes an encoder, an industrial computer and a data acquisition card. The encoder is arranged on the front wheel hub motor and is used to instantly detect the running speed of the platform; the data acquisition card is used to collect the signal of the encoder, and transmit the data signal to the host computer for subsequent processing through the collection and conversion of the data acquisition card; the encoder is driven by the running wheel axle provided in the front wheel to synchronously trigger the linear array camera to achieve seamless splicing of the longitudinal image of the track, realize the longitudinal full-length collection of the entire section of the high-speed railway track, and send it to the industrial computer through the data acquisition card to process the image in real time.

8. The railway track inspection robot according to claim 1, characterized in that: The track bed inspection and detection system also includes two laser light sources, which are respectively arranged between the left high-definition camera device and the middle high-definition camera device and between the middle high-definition camera device and the right high-definition camera device.

9. The railway track inspection robot according to claim 8, characterized in that: The roadbed inspection and detection system also includes a rectangular frame horizontally hung at the lower front part of the vehicle head, and the linear array camera and the laser light source are both arranged on the rectangular frame.

10. The railway track inspection robot according to claim 9, characterized in that: An upper vertical groove and a lower vertical groove are respectively provided at the lower parts of both sides of the front side of the vehicle head, an upper shock-absorbing block and two upper shock absorbers respectively connected to the top and bottom of the upper shock-absorbing block are provided in the upper vertical groove, the side of the upper shock-absorbing block is in contact with the inner side wall of the upper vertical groove, one end of the upper shock absorber is fixedly connected to the end of the upper vertical groove, the other end of the upper shock absorber is fixedly connected to the upper shock-absorbing block, and an upper hook is provided at the outer side of the upper shock-absorbing block; a lower shock-absorbing block and two lower shock absorbers respectively connected to the top and bottom of the lower shock-absorbing block are provided in the lower vertical groove, the side of the lower shock-absorbing block is in contact with the lower vertical groove, and the upper shock-absorbing block is fixedly connected to the end of the upper vertical groove. The inner wall of the groove is in contact and connected, one end of the lower shock absorber is fixedly connected to the end of the lower vertical strip groove, and the other end of the lower shock absorber is fixedly connected to the lower shock absorbing block, and a lower hook is provided on the outer side of the lower shock absorbing block; a pair of vertical strip pads are provided on the back of the laser light source, and the laser light source is connected to the rectangular frame through the strip pads, and there is a gap between the two strip pads. When the rectangular frame is set at the front of the vehicle, the upper and lower side frames of the rectangular frame are synchronously hung on the upper hook and the lower hook respectively, and the upper hook and the lower hook are inserted in the corresponding gap and abut against the strip pads on both sides of the gap.

Images