Pavement flatness detection equipment

Abstract

The invention relates to the technical field of road detection, in particular to road surface evenness detection equipment which comprises a detection vehicle body, a mounting frame, a wheel carrier and moving wheels are arranged on one side of the detection vehicle body, a supporting rod and a mounting plate are arranged on the upper surface of the detection vehicle body, and a buffer module and a detection module are further arranged. The buffering module is composed of a buffering frame, a hydraulic shock absorber and the like, effective buffering can be achieved when the moving wheels jolt, and the influence of vibration on the detection module is reduced. The detection module comprises a mounting frame, a visual sensor and the like, and can scan and detect the road surface. In addition, the equipment is further provided with a generator set and a storage battery for supplying power, and a light supplementing lamp and a protective cover are arranged below the mounting plate. During detection, the equipment is transported to a designated site and connected with a trailer, the detection module scans the road surface, data is wirelessly transmitted to a server, the equipment solves the problems that a traditional detection method is low in efficiency and existing equipment is poor in detection precision on a bumpy road section, remote monitoring management is achieved, and reliable data is provided for road maintenance and repair.

Description

Technical Field

[0001] The present invention relates to the technical field of road detection, and particularly to a road surface flatness detection device. Background Art

[0002] Road surface flatness is an important indicator to measure the road use performance and service level, which directly affects the driving safety, comfort and the service life of the road. However, there are many problems with the existing road surface flatness detection methods and devices.

[0003] Traditional detection methods require manual measurement section by section, which is cumbersome and time-consuming. When detecting a long section of road, the labor intensity of the detection personnel is high, and the detection progress is slow, which cannot meet the detection requirements of large-scale road construction and maintenance.

[0004] When using a detection device to face a bumpy road surface, although the detection efficiency is improved, due to the lack of effective shock absorption and buffering measures, the device will generate violent vibrations on the bumpy section, resulting in the detection module being unable to work stably, and ultimately leading to inaccurate evaluation of the road surface flatness, making it difficult to accurately identify small road surface defects and uneven areas, affecting the effectiveness of road maintenance and repair work. Therefore, it is urgent to design a road surface flatness detection device to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to solve the defects existing in the prior art, and to propose a road surface flatness detection device.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A road surface flatness detection device includes a detection vehicle body. One outer wall of the detection vehicle body is fixedly installed with a mounting frame. A wheel frame is arranged below the mounting frame, and a rotating shaft is rotatably arranged in the wheel frame. A moving wheel is fixedly installed on the outer side of the rotating shaft. A support rod is fixedly installed on the upper surface of the detection vehicle body, and a mounting plate is fixedly installed at the top of the support rod. A detection port corresponding to the mounting plate is opened on the outer wall of the detection vehicle body. An auxiliary wheel is also fixedly installed on the lower surface of the detection vehicle body. The device further includes:

[0008] A buffer module, which is arranged between the mounting frame and the wheel frame and is used to achieve buffering when the moving wheel encounters bumps;

[0009] A detection module, which is arranged below the mounting plate and is used to scan the road surface.

[0010] As a further solution of the present invention: The buffer module includes a buffer frame fixedly arranged on the upper surface of the wheel frame. A first support is fixedly installed on the lower surface of the mounting frame, and a pin shaft is fixedly installed on the inner wall of the first support. Pin holes are formed on both outer walls of the buffer frame, and the pin shaft is inserted into the pin holes. A fixed shaft is also fixedly installed between adjacent first supports, and a first hydraulic shock absorber is rotatably connected to the outside of the fixed shaft. The telescopic end of the first hydraulic shock absorber is rotatably connected to one end of the buffer frame. A second support is further fixedly installed on the upper surface of the mounting frame, and a second hydraulic shock absorber is rotatably connected in the second support. The telescopic end of the second hydraulic shock absorber is rotatably connected to the other end of the buffer frame.

[0011] As a further solution of the present invention: A cross plate is fixedly installed between adjacent second hydraulic shock absorbers. A measuring rod is fixedly installed at one end of the buffer frame connected to the second hydraulic shock absorber. A displacement sensor is fixedly installed on the lower surface of the cross plate for detecting the distance change between the cross plate and the measuring rod.

[0012] As a further solution of the present invention: The detection module includes an installation frame. A sliding plate is fixedly installed at the top end of the installation frame. A sliding groove is formed on the lower surface of the installation plate, and the sliding plate is slidably arranged in the sliding groove. The cross section of the sliding groove is in an inverted convex shape. A fixing opening is formed on the lower surface of the installation frame, and a universal joint seat is fixedly installed in the fixing opening. A universal ball is rotatably connected in the universal joint seat. A visual sensor is fixedly installed on the lower surface of the universal ball. A threaded cylinder is fixedly installed on the upper surface of the universal joint seat, and a rotating cylinder is threadedly connected to the outside of the threaded cylinder. A resisting block is fixedly installed on the inner wall of the top of the rotating cylinder, and a rubber sheet is fixedly installed on the lower surface of the resisting block for resisting the universal ball when the rotating cylinder moves downward. A limiting component is also arranged in the installation frame for limiting the position of the installation frame synchronously when the rotating cylinder rotates to lock the position of the universal ball.

[0013] As a further solution of the present invention: The limiting component includes an annular plate fixedly arranged on the outer wall of the rotating cylinder, and an annular sleeve is rotatably sleeved on the outside of the annular plate. A clamping rod is fixedly installed on the lower surface of the annular sleeve, and the clamping rod penetrates through the installation frame. A connecting plate is further fixedly installed on the lower surface of the installation plate, and a clamping plate is fixedly installed at the bottom end of the connecting plate. Claw slots are formed on the side wall of the clamping plate at equidistantly distributed intervals, and the clamping rod is matched with the claw slots.

[0014] As a further solution of the present invention: A generating set is fixedly installed on one outer wall of the wheel frame, and the rotating shaft is in transmission connection with the generating set. A placing opening is formed on the outer wall of the detection vehicle body, and a bottom support is fixedly installed below the placing opening. A battery pack is placed in the bottom support. The generating set is electrically connected to the battery pack. A wiring board is fixedly installed on the lower surface of the detection vehicle body, and the wiring board is electrically connected to the battery pack. The wiring board and the visual sensor are connected by a power cord.

[0015] As a further solution of the present invention: a supplementary light is fixedly installed on the lower surface of the mounting plate at equidistant intervals. An installation groove is further opened on the lower surface of the detection vehicle body, and a protective cover is slidably connected in the installation groove. The protective cover is located outside the supplementary light.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] A road surface flatness detection device provided by the present invention can first transport the detection vehicle body to a designated site during the road surface flatness detection operation, then install the detection module at the bottom of the mounting plate to ensure firm installation and accurate position. Then, a trailer coupler used to connect to the trailer hitch can be fixedly installed at the end of the detection vehicle body, and the detection vehicle body is connected to the rear end of the vehicle equipped with the trailer hitch through the trailer coupler, and the auxiliary wheels at the bottom of the detection vehicle body are in a suspended state. Then, the vehicle can drive the detection vehicle body to travel on the road surface to be detected, enabling the detection module to scan the road surface, and remotely transmit the detection data to the server through the wireless transmission module to achieve remote monitoring and management, improving the timeliness and management efficiency of road detection. Moreover, during the process of the detection vehicle body moving for detection, when encountering a bumpy road surface, effective buffering can be carried out with the help of the buffer module, effectively reducing the vibration impact of the bumpy section on the detection module. Even on a road surface with large bumps, the road surface flatness can be accurately measured, providing reliable data support for road maintenance and repair, and having a better use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a first perspective structural schematic diagram of a road surface flatness detection device provided by an embodiment of the present invention;

[0019] Figure 2 It is a second perspective structural schematic diagram of a road surface flatness detection device provided by an embodiment of the present invention;

[0020] Figure 3 For Figure 2 the enlarged structural schematic diagram at A in

[0021] Figure 4 It is a third perspective structural schematic diagram of a road surface flatness detection device provided by an embodiment of the present invention;

[0022] Figure 5 It is a structural schematic diagram of the mounting plate in a road surface flatness detection device provided by an embodiment of the present invention;

[0023] Figure 6 It is a structural schematic diagram of the detection module in a road surface flatness detection device provided by an embodiment of the present invention;

[0024] Figure 7 Schematic diagram of the half-section structure of the detection module in a road surface flatness detection device provided by an embodiment of the present invention;

[0025] Figure 8 Schematic diagram of the first perspective structure of the moving wheel in a road surface flatness detection device provided by an embodiment of the present invention;

[0026] Figure 9 Schematic diagram of the second perspective structure of the moving wheel in a road surface flatness detection device provided by an embodiment of the present invention;

[0027] Figure 10 Schematic diagram of the third perspective structure of the moving wheel in a road surface flatness detection device provided by an embodiment of the present invention;

[0028] Figure 11 Schematic diagram of the fourth perspective structure of the moving wheel in a road surface flatness detection device provided by an embodiment of the present invention.

[0029] In the figure: 101 - detection vehicle body, 102 - mounting frame, 103 - wheel frame, 104 - moving wheel, 105 - support rod, 106 - mounting plate, 107 - detection port, 108 - auxiliary wheel, 201 - bracket one, 202 - buffer frame, 203 - pin shaft, 204 - fixed shaft, 205 - hydraulic shock absorber one, 206 - bracket two, 207 - hydraulic shock absorber two, 301 - cross plate, 302 - displacement sensor, 303 - measuring rod, 401 - chute, 402 - sliding plate, 403 - mounting frame, 404 - universal joint seat, 405 - universal ball, 406 - vision sensor, 407 - threaded cylinder, 408 - rotating cylinder, 409 - abutting block, 410 - rubber sheet, 501 - ring plate, 502 - ring sleeve, 503 - clamping rod, 504 - connecting plate, 505 - clamping plate, 506 - clamping groove, 601 - generator set, 602 - bottom support, 603 - battery pack, 604 - wiring board, 701 - supplementary light, 702 - mounting groove, 703 - protective cover. Detailed implementation manners

[0030] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0031] Such as Figures 1-11As shown, a road surface flatness detection device provided by an embodiment of the present invention includes a detection body 101, a mounting frame 102 is fixedly installed on the outer wall of one side of the detection body 101, a wheel frame 103 is arranged below the mounting frame 102, and a rotating shaft is rotatably arranged in the wheel frame 103, and a moving wheel 104 is fixedly installed on the outer side of the rotating shaft, a support rod 105 is fixedly installed on the upper surface of the detection body 101, and a mounting plate 106 is fixedly installed on the top of the support rod 105, a detection port 107 corresponding to the mounting plate 106 is opened on the outer wall of the detection body 101, and an auxiliary wheel 108 is fixedly installed on the lower surface of the detection body 101, and also includes: a buffer module, the buffer module is arranged between the mounting frame 102 and the wheel frame 103, and is used to achieve buffering when the moving wheel 104 encounters bumps; a detection module, the detection module is arranged below the mounting plate 106, and is used to scan the road surface.

[0032] When performing a road surface flatness detection operation, the detection vehicle body 101 can be first transported to a designated site, and then the detection module can be installed at the bottom of the mounting plate 106 to ensure that the installation is firm and the position is accurate. Then, the trailer coupler used to connect to the trailer hook can be fixedly installed at the end of the detection vehicle body 101, and the detection vehicle body 101 can be connected to the rear end of the vehicle with the trailer hook installed through the trailer coupler, and the auxiliary wheel 108 at the bottom of the detection vehicle body 101 is suspended. Then, the detection vehicle body 101 can be driven by the vehicle to travel on the road surface that needs to be detected, so that the detection module can scan the road surface, and the detection data can be remotely transmitted to the server through the wireless transmission module to realize remote monitoring and management, thereby improving the timeliness and management efficiency of road detection. In addition, during the mobile detection of the detection vehicle body 101, when encountering a bumpy road surface, the buffer module can be used for effective buffering, which effectively reduces the vibration effect of the bumpy road section on the detection module. Even on a bumpy road surface, the road surface flatness can be accurately measured, providing reliable data support for road maintenance and repair, and the use effect is better.

[0033] As an embodiment of the present invention, please refer to Figure 8 , Figure 9 , Figure 10 and Figure 11The buffer module includes a buffer frame 202 fixedly arranged on the upper surface of the wheel frame 103, a bracket 201 is fixedly installed on the lower surface of the mounting frame 102, and a pin shaft 203 is fixedly installed on the inner wall of the bracket 201, and pin holes are opened on the outer walls of both sides of the buffer frame 202, and the pin shaft 203 is inserted into the pin holes, and a fixed shaft 204 is also fixedly installed between adjacent brackets 201, and a hydraulic shock absorber 205 is rotatably connected to the outer side of the fixed shaft 204, and the telescopic end of the hydraulic shock absorber 205 is rotatably connected to one end of the buffer frame 202, and the upper surface of the mounting frame 102 is also fixed A bracket 206 is installed, and a hydraulic shock absorber 207 is rotatably connected in the bracket 206. The telescopic end of the hydraulic shock absorber 207 is rotatably connected to the other end of the buffer frame 202. When the detection vehicle body 101 encounters bumps during movement, the buffer frame 202 will rotate on the outside of the pin shaft 203, causing the hydraulic shock absorber 205 and the hydraulic shock absorber 207 to expand and contract together, which can have a good buffering effect, effectively reducing the vibration impact of bumpy roads on the detection equipment, improving the detection accuracy, and at the same time reducing the risk of equipment damage, and the use effect is better.

[0034] As an embodiment of the present invention, please refer to Figure 11 A cross plate 301 is fixedly installed between adjacent hydraulic shock absorbers 207, a measuring rod 303 is fixedly installed at one end of the buffer frame 202 connected to the hydraulic shock absorber 207, and a displacement sensor 302 is fixedly installed on the lower surface of the cross plate 301 for detecting the distance change between the cross plate 301 and the measuring rod 303. When the hydraulic shock absorber 207 expands or contracts, the expansion and contraction amount of the hydraulic shock absorber 207 can be immediately detected by the displacement sensor 302. Since the expansion and contraction amount of the hydraulic shock absorber 207 is proportional to the bumpiness of the road surface, it can effectively assist in judging the bumpiness of the road section, and the use effect is better.

[0035] As an embodiment of the present invention, please refer to Figure 2 , Figure 5 , Figure 6 and Figure 7, the detection module includes an installation frame 403. A sliding plate 402 is fixedly installed at the top of the installation frame 403. A sliding groove 401 is formed on the lower surface of the installation plate 106, and the sliding plate 402 is slidably arranged in the sliding groove 401. The cross-section of the sliding groove 401 is in an inverted convex shape. A fixing opening is formed on the lower surface of the installation frame 403, and a universal joint seat 404 is fixedly installed in the fixing opening. A universal ball 405 is rotatably connected in the universal joint seat 404. A vision sensor 406 is fixedly installed on the lower surface of the universal ball 405. A threaded cylinder 407 is fixedly installed on the upper surface of the universal joint seat 404, and a rotating cylinder 408 is threadedly connected to the outside of the threaded cylinder 407. A resisting block 409 is fixedly installed on the inner wall of the top of the rotating cylinder 408, and a rubber sheet 410 is fixedly installed on the lower surface of the resisting block 409 for resisting the universal ball 405 when the rotating cylinder 408 moves downward. A limiting component is also arranged in the installation frame 403 for limiting the position of the installation frame 403 synchronously when the rotating cylinder 408 rotates to lock the position of the universal ball 405. The sliding plate 402 can be slidably installed in the sliding groove 401 to realize the quick installation of the installation frame 403. Until the vision sensor 406 below the installation frame 403 moves to a suitable position, the universal ball 405 in the universal joint seat 404 can be flexibly rotated until the vision sensor 406 below the universal ball 405 is adjusted to a suitable angle. At this time, the rotating cylinder 408 outside the threaded cylinder 407 can be rotated to make the rotating cylinder 408 move downward, prompting the resisting block 409 in the rotating cylinder 408 to resist the universal ball 405, so that the rubber sheet 410 at the bottom of the resisting block 409 fits the surface of the universal ball 405, and the universal ball 405 can be locked, thereby achieving the purpose of locking the recognition angle of the vision sensor 406. The road surface image can be captured by the vision sensor 406. Through image recognition technology, the damage conditions of the road surface, such as cracks, potholes, etc., can be detected, and their positions, shapes and sizes can be analyzed to realize road surface detection. At the same time, when the rotating cylinder 408 moves downward, the position of the installation frame 403 below the installation plate 106 can be locked by means of the limiting component, making it more convenient. And the number of vision sensors in this structure can be flexibly increased or decreased according to actual detection needs, and the use effect is better.

[0036] As an embodiment of the present invention, please refer to Figure 5 and Figure 7, the limiting component includes an annular plate 501 fixedly arranged on the outer wall of the rotating cylinder 408. An annular sleeve 502 is rotatably sleeved on the outer side of the annular plate 501. A clamping rod 503 is fixedly installed on the lower surface of the annular sleeve 502, and the clamping rod 503 penetrates through the installation frame 403. A connecting plate 504 is also fixedly installed on the lower surface of the installation plate 106, and a clamping plate 505 is fixedly installed at the bottom end of the connecting plate 504. Claw slots 506 are arranged at equal intervals on the side wall of the clamping plate 505, and the clamping rod 503 is matched with the claw slots 506. When the rotating cylinder 408 rotates and moves downward on the outer side of the threaded cylinder 407, the rotating cylinder 408 will drive the annular sleeve 502 to move downward together through the annular plate 501, so that the clamping rod 503 below the annular sleeve 502 is inserted into the claw slots 506 of the clamping plate 505. Thus, while the position of the universal ball 405 can be limited, the position of the installation frame 403 can be locked synchronously, and the use effect is better.

[0037] As an embodiment of the present invention, please refer to Figure 2 and Figure 8 , a generator set 601 is fixedly installed on the outer wall of one side of the wheel frame 103, and the rotating shaft is in transmission connection with the generator set 601. A storage opening is arranged on the outer wall of the detection vehicle body 101, and a bottom support 602 is fixedly installed below the storage opening. A battery pack 603 is placed in the bottom support 602. The generator set 601 is electrically connected to the battery pack 603. A wiring board 604 is fixedly installed on the lower surface of the detection vehicle body 101, and the wiring board 604 is electrically connected to the battery pack 603. The wiring board 604 and the vision sensor 406 are connected by a power cord. When the vehicle pulls the detection vehicle body 101 to move, the rotation of the moving wheel 104 can drive the rotating shaft to rotate in the wheel frame 103, and the generator set 601 can realize energy recovery and power generation by means of the rotation of the rotating shaft, store the electric energy in the battery pack 603 and supply power to the wiring board 604. The wiring board 604 and the vision sensor 406 are connected by a power cord, which can effectively realize the purpose of converting kinetic energy into electric energy to supply power to the equipment through the movement of the inspection vehicle body, and the use effect is better.

[0038] As an embodiment of the present invention, please refer to Figure 2 and Figure 3The lower surface of the mounting plate 106 is fixedly mounted with fill-in lights 701 which are distributed at equal distances. The lower surface of the detection vehicle body 101 is also provided with a mounting groove 702, and a protective cover 703 is slidably connected in the mounting groove 702. The protective cover 703 is made of transparent plastic. The protective cover 703 is located on the outside of the fill-in lights 701. The fill-in lights 701 can be used to perform fill-in light operation on the detection vehicle body 101, so that the shooting process of the visual sensor 406 is clearer. The protective cover 703 can protect the fill-in lights 701 and prevent the fill-in lights 701 from being smashed by stones splashed when the vehicle is driving. Under the action of external force, the protective cover 703 can be directly moved in the mounting groove 702, which is convenient for the inspection and maintenance of the fill-in lights 701 and is more convenient to use.

[0039] During use, when performing a road surface flatness detection operation, the detection vehicle body 101 can be first transported to a designated site, and then the detection module can be installed at the bottom of the mounting plate 106 to ensure that the installation is firm and the position is accurate. Then, the trailer coupler used to connect to the trailer hook can be fixedly installed at the end of the detection vehicle body 101, and the detection vehicle body 101 is connected to the rear end of the vehicle with the trailer hook installed through the trailer coupler, and the auxiliary wheel 108 at the bottom of the detection vehicle body 101 is suspended. Then, the detection vehicle body 101 can be driven by the vehicle to travel on the road surface to be detected, so that the detection module can scan the road surface, and the detection data can be remotely transmitted to the server through the wireless transmission module to realize remote monitoring and management, thereby improving the timeliness and management efficiency of road detection. In addition, during the mobile detection of the detection vehicle body 101, when encountering a bumpy road surface, the buffer module can be used for effective buffering, which effectively reduces the vibration effect of the bumpy road section on the detection module. Even on a bumpy road surface, the road surface flatness can be accurately measured, providing reliable data support for road maintenance and repair, and the use effect is better.

[0040] It should be particularly noted that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A road surface flatness detection device, comprising a detection vehicle body, characterized in that: A mounting frame is fixedly installed on the outer wall of one side of the detection vehicle body, a wheel frame is arranged below the mounting frame, and a rotating shaft is rotatably arranged in the wheel frame, a moving wheel is fixedly installed on the outer side of the rotating shaft, a support rod is fixedly installed on the upper surface of the detection vehicle body, and a mounting plate is fixedly installed on the top of the support rod, a detection port corresponding to the mounting plate is opened on the outer wall of the detection vehicle body, and an auxiliary wheel is fixedly installed on the lower surface of the detection vehicle body, and further includes: A buffer module, which is arranged between the mounting frame and the wheel frame and is used to achieve buffering when the moving wheel encounters bumps; A detection module is arranged below the mounting plate and is used for scanning the road surface.

2. A road surface flatness detection device according to claim 1, characterized in that: The buffer module includes a buffer frame fixedly arranged on the upper surface of the wheel frame, a bracket 1 is fixedly installed on the lower surface of the mounting frame, and a pin shaft is fixedly installed on the inner wall of the bracket 1, pin holes are opened on the outer walls of both sides of the buffer frame, and the pin shaft is inserted into the pin hole, a fixed shaft is also fixedly installed between adjacent brackets 1, and a hydraulic shock absorber 1 is rotatably connected to the outer side of the fixed shaft, and the telescopic end of the hydraulic shock absorber 1 is rotatably connected to one end of the buffer frame, a bracket 2 is also fixedly installed on the upper surface of the mounting frame, and a hydraulic shock absorber 2 is rotatably connected in the bracket 2, and the telescopic end of the hydraulic shock absorber 2 is rotatably connected to the other end of the buffer frame.

3. A road surface flatness detection device according to claim 2, characterized in that: A transverse plate is fixedly installed between the two adjacent hydraulic shock absorbers, a measuring rod is fixedly installed on one end of the buffer frame connected to the two hydraulic shock absorbers, and a displacement sensor is fixedly installed on the lower surface of the transverse plate for detecting the distance change between the transverse plate and the measuring rod.

4. A road surface flatness detection device according to claim 1, characterized in that: The detection module includes an installation frame, a slide is fixedly installed on the top of the installation frame, a slide groove is provided on the lower surface of the installation plate, and the slide is slidably arranged in the slide groove, the cross-section of the slide groove is inverted convex, a fixing opening is provided on the lower surface of the installation frame, and a universal seat is fixedly installed in the fixing opening, a universal ball is rotatably connected in the universal seat, a visual sensor is fixedly installed on the lower surface of the universal ball, a threaded cylinder is fixedly installed on the upper surface of the universal seat, and a rotating cylinder is threadedly connected to the outer side of the threaded cylinder, a stop block is fixedly installed on the top inner wall of the rotating cylinder, and a rubber sheet is fixedly installed on the lower surface of the stop block, which is used to hold the universal ball when the rotating cylinder moves downward, and a limiting assembly is also provided in the installation frame, which is used to synchronously limit the position of the installation frame when the rotating cylinder rotates to lock the position of the universal ball.

5. A road surface flatness detection device according to claim 4, characterized in that: The limiting assembly includes a ring plate fixedly arranged on the outer wall of the rotating drum, and a ring sleeve is rotatably sleeved on the outer side of the ring plate, a clamping rod is fixedly installed on the lower surface of the ring sleeve, and the clamping rod passes through the mounting frame, a connecting plate is also fixedly installed on the lower surface of the mounting plate, and a clamping plate is fixedly installed on the bottom end of the connecting plate, and the side wall of the clamping plate is provided with clamping grooves distributed at equal distances, and the clamping rod and the clamping groove cooperate with each other.

6. A road surface flatness detection device according to claim 4, characterized in that: A generator set is fixedly mounted on an outer wall of one side of the wheel frame, and a transmission connection is formed between the rotating shaft and the generator set; a storage opening is formed on the outer wall of the detection vehicle body, and a bottom bracket is fixedly mounted below the storage opening, a battery pack is placed in the bottom bracket, and the generator set and the battery pack are electrically connected; a wiring board is fixedly mounted on the lower surface of the detection vehicle body, and the wiring board and the battery pack are electrically connected, and the wiring board and the visual sensor are connected via a power line.

7. A road surface flatness detection device according to claim 1, characterized in that: The lower surface of the mounting plate is fixedly mounted with fill lights distributed at equal distances. The lower surface of the detection vehicle body is also provided with a mounting groove, and a protective cover is slidably connected in the mounting groove. The protective cover is located outside the fill lights.

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