A road surface flatness detection device with a barrier removing function
By combining guide wheels and cleaning rollers, the problem of stones affecting the accuracy of detection in existing technologies has been solved, achieving high efficiency, accuracy and stability in road surface smoothness detection, and extending the service life of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU XINRUI TRAFFIC ENG TESTING CO LTD
- Filing Date
- 2025-07-18
- Publication Date
- 2026-05-29
AI Technical Summary
When existing road surface smoothness testing devices encounter stones on the ground, the cleaning brush cannot effectively remove the stones, resulting in inaccurate test values and affecting the accuracy and consistency of the test results.
A road surface smoothness detection device with obstacle removal function was designed. It adopts a combination structure of guide wheel and cleaning roller. The guide wheel pushes large stones out of the roller track, and the cleaning roller guides small gravel to both sides to ensure that the roller is in stable contact with the ground. It also sweeps synchronously through belt drive to prevent gravel from entering the roller area.
It improves the accuracy and consistency of road surface smoothness detection, reduces measurement errors, extends the service life of rollers, and improves cleaning efficiency.
Smart Images

Figure CN224299765U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building engineering technology, specifically a road surface smoothness detection device with obstacle removal function. Background Technology
[0002] In road engineering supervision and acceptance, the 3m straightedge manual inspection method is often used to check the road surface smoothness. The 3m straightedge manual inspection method requires a 3m straightedge and a wedge gauge. During the inspection, the operator needs to place the 3m straightedge flat on the road surface, insert the wedge gauge into the part with the largest gap under the 3m straightedge, and then read the data on the wedge gauge. In order to reduce the error in the inspection process, the operator usually checks multiple points. This requires the operator to first observe and find multiple inspection points, then insert the wedge gauge into each inspection point, and read the data at each monitoring point.
[0003] According to a road surface smoothness testing device disclosed in the public notice (Announcement No.: CN218203754U), the above application includes a guide rail, a slider slidably connected to the guide rail along its length, a testing ruler slidably connected to the slider, the sliding direction of the testing ruler being perpendicular to the length direction of the guide rail, the testing ruler being provided with scale markings, and the slider being provided with a marking component that contacts the testing ruler.
[0004] However, in actual use, when stones appear on the ground, the cleaning brush can only sweep the stones forward. As the cleaning brush moves forward, the stones may enter the gap between the cleaning brush and the ground, thus breaking through the cleaning brush and affecting the movement of the roller, which in turn affects the accuracy of the flatness test value. In view of this, we propose a road surface flatness test device with obstacle removal function. Utility Model Content
[0005] The purpose of this invention is to provide a road surface smoothness detection device with obstacle removal function to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a road surface smoothness detection device with obstacle removal function, comprising a frame, an adjustment component provided on the side wall of the frame, a level fixedly connected to the side wall of the frame, a detection component provided inside the frame, and an obstacle removal component provided at the bottom of the detection component, the obstacle removal component comprising:
[0007] The movable frame has guide wheels rotatably connected to its bottom and cleaning rollers rotatably connected to its inner wall.
[0008] A guide frame, which is fixedly connected to the side wall of the movable frame.
[0009] Preferably, the adjustment component includes a threaded rod that is threadedly connected to the frame body. The bottom of the threaded rod is connected to the support plate through a movably connected connecting ball. Rotating the threaded rod changes the height of the threaded rod extension, thereby leveling the frame body.
[0010] Preferably, the detection component includes a drive motor fixedly connected to the side wall of the frame, a screw fixedly connected to the output end of the drive motor, a recording plate fixedly connected to the top end face of the frame, and a sliding plate slidably connected to the top end face of the frame.
[0011] Preferably, a movable block is threadedly connected to the side wall of the screw, the movable block is slidably connected to the mounting frame, a recording pen one is fixedly connected to the side wall of the mounting frame, a recording pen two is fixedly connected to the side wall of the mounting frame, a roller is rotatably connected to the inner wall of the mounting frame, a connecting rod is fixedly connected to the top end face of the movable block, and the end face of the connecting rod is fixedly connected to the sliding plate.
[0012] Preferably, the movable frame is inserted into the bottom end face of the movable block, the guide wheel is wider than the roller, the guide wheel is larger than the roller, and the cleaning roller is wider than the guide wheel.
[0013] Preferably, the roller is located between the guide wheel and the cleaning roller, and the guide frame is located on the side of the cleaning roller away from the guide wheel. The guide frame and the cleaning roller clean the ground.
[0014] Preferably, the rotating shaft of the guide wheel is fixedly connected to pulley one, pulley one is connected to belt drive, and the rotating shaft of the cleaning roller is fixedly connected to pulley two, pulley two is connected to belt drive.
[0015] Compared with the prior art, this utility model provides a road surface smoothness detection device with obstacle removal function, which has the following beneficial effects:
[0016] 1. This road surface smoothness detection device with obstacle removal function uses an obstacle removal component and guide frame to push larger stones and other debris off the roller's movement trajectory. The rear roller can then make stable and smooth contact with the actual ground for undulation detection. The cleaning roller sweeps the ground, guiding smaller stones to both sides of the cleaning roller. The stones are kept away from the roller's movement trajectory, resulting in more thorough cleaning and preventing small stones from entering the roller's rolling area and causing measurement errors.
[0017] 2. This road surface smoothness detection device with obstacle removal function ensures that the sweeping action is synchronized with the equipment movement through the set belt, avoiding the problem of inconsistent rotation speed and improving cleaning efficiency and consistency. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the main structure of the present utility model;
[0019] Figure 2 This is a schematic diagram of the movable frame structure of this utility model;
[0020] Figure 3 This is a schematic diagram of the roller structure of this utility model;
[0021] Figure 4 This is a schematic diagram of the guide wheel structure of this utility model;
[0022] Figure 5 This is a schematic diagram of the cleaning roller structure of this utility model.
[0023] In the diagram: 1. Frame; 2. Adjustment component; 3. Level; 4. Detection component; 401. Drive motor; 402. Moving block; 403. Mounting frame; 404. Roller; 405. Recording pen one; 406. Recording pen two; 407. Sliding plate; 408. Recording board; 409. Connecting rod; 410. Screw; 5. Obstacle removal component; 501. Movable frame; 502. Guide wheel; 503. Cleaning roller; 505. Guide frame; 6. Belt. Detailed Implementation
[0024] like Figures 1-5 As shown, this utility model provides a technical solution: a road surface flatness detection device with obstacle removal function, including a frame 1, an adjustment component 2 is provided on the side wall of the frame 1, a level 3 is fixedly connected to the side wall of the frame 1, a detection component 4 is provided inside the frame 1, and an obstacle removal component 5 is provided at the bottom of the detection component 4. The obstacle removal component 5 includes a movable frame 501, a guide wheel 502, a cleaning roller 503, and a guide frame 505.
[0025] In one embodiment of this utility model, a movable frame 501 is inserted into the bottom end face of a movable block 402. A guide wheel 502 is rotatably connected to the bottom of the movable frame 501. A cleaning roller 503 is rotatably connected to the inner wall of the movable frame 501. A roller 404 is located between the guide wheel 502 and the cleaning roller 503. A guide frame 505 is located on the side of the cleaning roller 503 away from the guide wheel 502. The width of the guide wheel 502 is greater than that of the roller 404, and the diameter of the guide wheel 502 is greater than that of the roller 404. The width of the cleaning roller 503 is greater than that of the guide wheel 502. The guide frame 505 is fixedly connected to the side wall of the movable frame 501. The guide frame 505 and the cleaning roller 503 clean the ground.
[0026] The adjustment component 2 includes a threaded rod that is threadedly connected to the frame 1. The bottom of the threaded rod is connected to the support plate through a movable connecting ball. Rotating the threaded rod changes the height of the threaded rod extension, thereby leveling the frame 1.
[0027] The detection component 4 includes a drive motor 401 fixedly connected to the side wall of the frame 1, a screw 410 fixedly connected to the output end of the drive motor 401, a recording plate 408 fixedly connected to the top end face of the frame 1, and a sliding plate 407 slidably connected to the top end face of the frame 1.
[0028] A movable block 402 is threadedly connected to the side wall of the screw 410. The movable block 402 is slidably connected to the mounting bracket 403. A recording pen 1 405 is fixedly connected to the side wall of the mounting bracket 403. A recording pen 2 406 is fixedly connected to the side wall of the mounting bracket 403. A roller 404 is rotatably connected to the inner wall of the mounting bracket 403. A connecting rod 409 is fixedly connected to the top end face of the movable block 402. The end face of the connecting rod 409 is fixedly connected to the sliding plate 407.
[0029] Rotating the threaded rod changes the extension height of the threaded rod, leveling the frame 1 and establishing a standard measurement benchmark to improve the reliability and consistency of subsequent measurement data. The drive motor 401 drives the screw 410 to rotate, causing the moving block 402 to move laterally. The roller 404 is always in contact with the ground due to gravity, causing the mounting frame 403 to rise or fall with the undulations of the ground. Through the connecting rod 409, the sliding plate 407 moves with the translation of the moving block 402. Recording pen one 405 records the height information of the ground undulations on the sliding plate 407 to intuitively show the height difference between the highest and lowest points of the road surface. Recording pen two 406 slides on the recording plate 408 to ensure that the true elevation of each point on the detection path can be recorded, resulting in a broken line graph or curve graph of the change in height from the ground at one end.
[0030] When the moving block 402 moves horizontally, the guide wheel 502 rolls on the ground. Because the guide wheel 502 is relatively large, it is less affected by the flatness of the ground and has a good ability to cross small obstacles. This makes the movement of the guide frame 505 relatively smooth. The guide frame 505 pushes larger stones and other debris off the track of the roller 404. The roller 404 behind can make stable and smooth contact with the real ground to detect undulations.
[0031] After the guide frame 505 pushes out stones and other debris, the cleaning roller 503 sweeps the ground. Because the bristles on the cleaning roller 503 are arranged in a V-shape, the bristles have a guiding effect on smaller stones, guiding the smaller stones to both sides of the cleaning roller 503. The stones are away from the movement trajectory of the roller 404, making the cleaning more thorough. This prevents small stones from being missed and entering the rolling area of the roller 404, which would cause measurement errors. The roller 404 is also prevented from being lifted, jumping, or subjected to uneven force due to stones, improving the accuracy and continuity of the flatness data, reducing wear on the roller 404, and extending its service life.
[0032] In addition, the rotating shaft of the guide wheel 502 is fixedly connected to pulley one, and pulley one is connected to belt 6 for transmission. The rotating shaft of the cleaning roller 503 is fixedly connected to pulley two, and pulley two is connected to belt 6 for transmission. The rotation of the guide wheel 502 is forced to drive the cleaning roller 503 to rotate through the transmission of belt 6. There is no need to set up a separate motor, control circuit, or power supply system, which makes the structure simpler. It ensures that the cleaning action is synchronized with the movement of the equipment, avoids the problem of inconsistent rotation speed, and improves cleaning efficiency and consistency.
[0033] In this invention, during use, the frame 1 is leveled, and the drive motor 401 drives the screw 410 to rotate, causing the moving block 402 to move laterally. The roller 404 remains in contact with the ground due to gravity, causing the mounting frame 403 to rise or fall with the undulations of the ground. Recording pen one 405 records the height information of the ground undulations on the sliding plate 407, allowing for a direct visual determination of the height difference between the highest and lowest points of the road surface. Recording pen two 406 slides on the recording plate 408, ensuring that the true elevation of each point on the detection path is recorded. The guide wheel 502 rolls on the ground; due to its large size, it is less affected by the flatness of the ground. It has a good ability to overcome small obstacles, making the movement of the guide frame 505 relatively smooth. The guide frame 505 pushes larger stones and other debris off the track of the roller 404. The roller 404 behind can make stable and smooth contact with the actual ground. The cleaning roller 503 sweeps the ground. Because the bristles on the cleaning roller 503 are arranged in a V-shape, the bristles have a guiding effect on smaller stones, guiding the smaller stones to both sides of the cleaning roller 503. The stones are away from the track of the roller 404, making the cleaning more thorough and preventing small stones from entering the rolling area of the roller 404 and causing measurement errors. The roller 404 is prevented from being lifted, jumping or unevenly stressed due to stones.
[0034] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.
Claims
1. A road surface smoothness detection device with obstacle clearing function, comprising a frame (1), wherein an adjustment component (2) is provided on the side wall of the frame (1), and a level (3) is fixedly connected to the side wall of the frame (1), characterized in that: The frame (1) is equipped with a detection component (4) inside, and a clearing component (5) is provided at the bottom of the detection component (4). The clearing component (5) includes: A movable frame (501) is rotatably connected to a guide wheel (502) at its bottom and a cleaning roller (503) is rotatably connected to the inner wall of the movable frame (501). Guide frame (505), which is fixedly connected to the side wall of movable frame (501).
2. The road surface smoothness detection device with obstacle clearing function according to claim 1, characterized in that: The adjustment component (2) includes a threaded rod that is threadedly connected to the frame (1), and the bottom of the threaded rod is connected to the support plate through a movable connecting ball.
3. The road surface smoothness detection device with obstacle clearing function according to claim 1, characterized in that: The detection component (4) includes a drive motor (401) fixedly connected to the side wall of the frame (1), a screw (410) fixedly connected to the output end of the drive motor (401), a recording plate (408) fixedly connected to the top end face of the frame (1), and a sliding plate (407) slidably connected to the top end face of the frame (1).
4. A road surface smoothness detection device with obstacle clearing function according to claim 3, characterized in that: The screw (410) is threadedly connected to a moving block (402), which is slidably connected to a mounting bracket (403). A recording pen (405) is fixedly connected to the side wall of the mounting bracket (403), and a recording pen (406) is fixedly connected to the side wall of the mounting bracket (403). A roller (404) is rotatably connected to the inner wall of the mounting bracket (403). A connecting rod (409) is fixedly connected to the top end face of the moving block (402), and the end face of the connecting rod (409) is fixedly connected to a sliding plate (407).
5. A road surface smoothness detection device with obstacle clearing function according to claim 4, characterized in that: The movable frame (501) is inserted into the bottom end face of the movable block (402). The width of the guide wheel (502) is greater than that of the roller (404), the diameter of the guide wheel (502) is greater than that of the roller (404), and the width of the cleaning roller (503) is greater than that of the guide wheel (502).
6. A road surface smoothness detection device with obstacle clearing function according to claim 4, characterized in that: The roller (404) is located between the guide roller (502) and the cleaning roller (503), and the guide frame (505) is located on the side of the cleaning roller (503) away from the guide roller (502).
7. A road surface smoothness detection device with obstacle clearing function according to claim 1, characterized in that: The rotating shaft of the guide wheel (502) is fixedly connected to pulley one, and pulley one is connected to belt (6) for transmission. The rotating shaft of the cleaning roller (503) is fixedly connected to pulley two, and pulley two is connected to belt (6) for transmission.