Road flatness detection equipment
By designing an automated road smoothness testing device, which utilizes a drive unit and steering motor to enable automatic movement of the equipment, and combines solar power supply and high-definition camera monitoring, the problem of difficult manual operation in long-distance testing has been solved, improving testing efficiency and data accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN GANGJIA MATERIAL TESTING
- Filing Date
- 2025-06-10
- Publication Date
- 2026-05-08
AI Technical Summary
Existing vehicle-mounted laser flatness gauges require manual pulling during long-distance testing, which makes operation difficult, labor-intensive, and inefficient.
A device comprising a laser detector and a mobile unit was designed. The device uses a drive unit to drive the drive shaft and drive wheels to achieve automatic movement. It combines a steering motor and a high-definition camera for direction adjustment and remote monitoring. It uses solar panels for power to extend its range and is equipped with a braking device to ensure safety.
It achieves automated testing, reduces labor costs, improves testing efficiency and data accuracy, extends equipment battery life, and ensures the stability and safety of the testing process.
Smart Images
Figure CN224213087U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of road inspection technology, and in particular to a road smoothness inspection device. Background Technology
[0002] Road surface smoothness testing is an important technical task for assessing the unevenness of road surfaces. It aims to quantify the smoothness of roads using scientific methods, providing data support for road design, construction, maintenance, and repair. Currently, the most common road surface smoothness testing device is the vehicle-mounted laser smoothness meter, a high-precision testing equipment that integrates laser ranging, inertial navigation, and data acquisition and processing technologies.
[0003] However, at present, due to the need to maintain a steady direction, manual pulling is required during the inspection. This is fine for short-distance inspections, but it becomes very difficult to pull manually for long-distance inspections. Therefore, we are applying for a new type of road smoothness inspection equipment. Utility Model Content
[0004] In view of the shortcomings of the existing technology, the purpose of this application is to provide a road smoothness testing device to solve the technical problems in the background art.
[0005] The above-mentioned objective of this application is achieved through the following technical solution: a road smoothness testing device, including a laser detector and a bottom moving device, the moving device including a bracket set at the bottom of the laser detector, a connecting rod rotatably connected to the bottom of the bracket, a groove formed at the bottom of the connecting rod, a moving wheel rotatably arranged in the groove, a drive wheel set at the front end of the bracket, a pair of drive rods set at the bottom of the bracket, a drive shaft fixedly set in the middle of the drive wheel, the drive shaft and the bottom of the drive rods rotatably connected, and a drive device for starting the drive shaft set at the upper end of the drive rods.
[0006] By adopting the above technical solution, after the laser detector is started, the drive device in this application drives the drive shaft to rotate, which in turn drives the drive wheel to rotate, thereby moving the movable wheel on the bracket. This enables automatic detection.
[0007] Furthermore, the driving device includes a drive motor fixedly connected to one of the drive rods, a timing belt is fitted on the output end of the drive motor, and the other end of the timing belt is fitted on the drive shaft.
[0008] By adopting the above technical solution, after the drive motor rotates, it drives the synchronous belt and then drives the drive shaft to rotate.
[0009] Furthermore, a rotating disk is fixedly mounted on the upper end of the drive rod, and a steering shaft that is rotatably connected to the bracket is fixedly mounted on the upper end of the rotating disk. A steering motor is fixedly mounted on the bracket, and the output end of the steering motor is fixedly connected to the steering shaft.
[0010] By adopting the above technical solution, considering that it may be necessary to make fine adjustments to the direction during the movement detection process, this application provides a steering motor at the upper end of the moving rod to drive the steering shaft to rotate, thereby achieving the purpose of steering.
[0011] Furthermore, sealing plates are fixedly provided on both sides of the pair of drive rods.
[0012] By adopting the above technical solution, the sealing plate can prevent sand and gravel from entering the drive device and causing damage to it.
[0013] Furthermore, a storage battery is fixedly installed on the upper end of the bracket, and a solar panel fixedly connected to the bracket is installed on one side of the storage battery.
[0014] By adopting the above technical solution as the core energy storage unit of the equipment, it ensures that the equipment has sufficient power when it starts up, and serves as a stable power source for components such as laser detectors, drive motors, and steering motors during mobile detection. It continuously converts light energy into battery power to replenish the power, which can significantly extend the equipment's battery life, especially in long-distance detection, and reduce the need for manual intervention.
[0015] Furthermore, a high-definition camera is also fixedly installed at the front end of the bracket.
[0016] By adopting the above technical solution, operators can remotely monitor the equipment's operating status through real-time camera footage, promptly identify obstacles and adjust the route, and avoid equipment damage or data loss.
[0017] Furthermore, the movable wheel is equipped with a braking device.
[0018] Furthermore, the braking device includes a drive electric cylinder fixedly connected inside the connecting rod, and multiple brake holes are provided on the surface of the movable wheel axle, with the output end of the drive electric cylinder plugged into the brake holes.
[0019] By adopting the above technical solution, when braking is required, the output end of the drive pole can be extended into the brake hole for quick locking.
[0020] In summary, this application includes the following beneficial technical effects: The road smoothness testing equipment uses a drive device to drive the drive shaft to rotate, which in turn drives the drive wheels to rotate, causing the moving wheels on the support to move, thus realizing the automated movement of the equipment. Compared with traditional manual inspection methods, it greatly saves labor costs, improves inspection efficiency, and can quickly and continuously inspect the smoothness of large areas of roads, effectively shortening the inspection cycle. The moving device adopts a specific structural design, and through the coordinated work of components such as the support, connecting rod, moving wheels, drive wheels, and drive rod, it ensures the stability of the equipment during movement. The rotational connection between the drive shaft and the drive rod, as well as the precise drive of the drive shaft by the drive device, enable the equipment to move smoothly at the set speed and direction, reducing the impact of equipment shaking or deviation on the laser detector's inspection results, and improving the accuracy and reliability of the inspection data. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure in the embodiment;
[0022] Figure 2 yes Figure 1 Sectional view along section line AA;
[0023] Figure 3 This is a schematic diagram of the drive device structure in the embodiment.
[0024] Reference numerals: 1. Bracket; 10. Laser detector; 11. Battery; 12. Solar panel; 13. High-definition camera; 2. Drive rod; 22. Drive wheel; 23. Drive shaft; 24. Rotary disc; 25. Drive motor; 26. Steering motor; 27. Synchronous belt; 28. Sealing plate; 3. Connecting rod; 31. Moving wheel; 32. Brake hole; 33. Drive cylinder. Detailed Implementation
[0025] The present application will be further described in detail below with reference to the accompanying drawings.
[0026] Example, refer to Figures 1-3A road smoothness testing device includes a laser detector 10 and a bottom-mounted moving device. The moving device includes a bracket 1 mounted at the bottom of the laser detector 10, a connecting rod 3 rotatably mounted at the bottom of the bracket 1, a groove at the bottom of the connecting rod 3, and a moving wheel 31 rotatably mounted in the groove. A drive wheel 22 is mounted at the front end of the bracket 1, and a pair of drive rods 2 are mounted at the bottom of the bracket 1. A drive shaft 23 is fixedly mounted in the middle of the drive wheel 22, and the drive shaft 23 is rotatably connected to the bottom of the drive rods 2. A drive device for activating the drive shaft 23 is mounted at the upper end of the drive rods 2. After the laser detector 10 is activated, the drive device drives the drive shaft 23 to rotate, thereby driving the drive wheel 22 to rotate, which in turn drives the moving wheel 31 on the bracket 1 to move. This enables automatic testing.
[0027] In this embodiment, the driving device includes a drive motor 25 fixedly connected to one of the drive rods 2, a timing belt 27 is sleeved on the output end of the drive motor 25, and the other end of the timing belt 27 is sleeved on the drive shaft 23.
[0028] After the drive motor 25 rotates, it drives the synchronous belt 27, which in turn drives the drive shaft 23 to rotate. A rotating disk 24 is fixedly mounted on the upper end of the drive rod 2, and a steering shaft rotatably connected to the bracket 1 is fixedly mounted on the upper end of the rotating disk 24. A steering motor 26 is fixedly mounted on the bracket 1, and the output end of the steering motor 26 is fixedly connected to the steering shaft. Considering the need for fine-tuning of the direction during the movement detection process, this application uses a steering motor 26 at the upper end of the moving rod to drive the steering shaft to rotate, thereby achieving the purpose of steering.
[0029] In this embodiment, sealing plates 28 are fixedly installed on both sides of a pair of drive rods 2. The sealing plates 28 can prevent sand and gravel from entering the drive device and causing damage to it.
[0030] In this embodiment, a battery 11 is fixedly mounted on the upper end of the bracket 1, and a solar panel 12 is fixedly connected to the bracket 1 on one side of the battery 11. As the core energy storage unit of the device, it ensures that the device has sufficient power when it starts up, and serves as a stable power source for components such as the laser detector 10, drive motor 25, and steering motor 26 during mobile detection. It continuously converts light energy into power to replenish the battery 11. Especially in long-distance detection, it can significantly extend the device's battery life and reduce the need for manual intervention.
[0031] In this embodiment, a high-definition camera 13 is also fixedly installed at the front end of the bracket 1. Operators can remotely monitor the operating status of the equipment through the real-time image of the camera, promptly detect obstacles and adjust the route to avoid equipment damage or data loss.
[0032] In this embodiment, a braking device is provided on the movable wheel 31. The braking device includes a drive cylinder 33 fixedly connected inside the connecting rod 3. Multiple brake holes 32 are opened on the axle surface of the movable wheel 31, and the output end of the drive cylinder 33 is inserted into the brake holes 32. When braking is required, the output end of the drive cylinder 33 extends into the brake hole 32, which allows for quick locking.
[0033] Specific implementation process: The usage process of a road smoothness detection device is described as follows: After turning on the device power, check the battery 11 charge and the solar panel 12 charging status (the solar panel 12, as the core energy storage unit, can continuously charge the battery 11 when there is sufficient sunlight, ensuring that the device has sufficient power during long-distance detection and reducing the need for manual intervention). Start the laser detector 10 to confirm that it is in normal working mode (the laser detector 10, as the core detection unit, is responsible for collecting road smoothness data in real time). Check the response status of the drive motor 25, steering motor 26, and braking device to ensure the drive system (the drive motor 25 drives the drive system through the synchronous belt 27). The drive shaft 23 drives the wheel 22 to rotate, enabling equipment movement. The steering system (steering motor 26 drives the steering shaft to rotate for fine-tuning of direction) and braking device (drive cylinder 33's output is inserted into brake hole 32 for quick locking) are all functioning normally. Based on testing requirements, the testing route is planned via a remote control terminal or the equipment's built-in navigation system, and the testing speed (e.g., 5 km / h) and data acquisition frequency (e.g., once every 0.1 meters) are set to ensure the testing coverage and data density meet engineering standards. When starting testing, the drive motor 25 drives the drive shaft 23 to rotate via the synchronous belt 27, causing the drive wheel 22 to begin rotating. The equipment moves along the planned route, and the laser detector 10 operates in real-time. The system collects road smoothness data and stores it along with the equipment location information (synchronously recorded via GPS or odometer) to ensure data traceability. A high-definition camera 13 (resolution ≥1080P, supporting night vision) transmits real-time images of the road ahead to the operating terminal. Operators can remotely monitor the equipment's operating status and road conditions via the camera feed, promptly identifying obstacles and adjusting the route to prevent equipment damage or data loss. If a direction adjustment is needed, the operator sends a steering command via the terminal. The steering motor 26 rotates the steering shaft, causing the drive rod 2 to turn, achieving ±1° fine-tuning to adapt to complex road conditions. If the camera detects an obstacle ahead, the system automatically triggers steering or braking procedures. (Braking device response time ≤ 0.5 seconds) Ensures safe obstacle avoidance for the equipment. When the inspection is completed or an emergency occurs, the output end of the drive cylinder 33 is inserted into the brake hole 32 to quickly lock the moving wheel 31, and the equipment automatically stops moving. The laser detector 10 continues to record the last segment of data. During the braking process, the equipment automatically saves the current inspection data to avoid data loss. The inspection data (including laser data, video, and location information) is stored in real time to the local equipment or cloud server. The data transmission delay is ≤ 500ms to ensure real-time performance. After the inspection is completed, a road smoothness report is generated through dedicated software, marking abnormal areas and defect types (such as cracks, potholes, etc.) to provide a basis for subsequent maintenance. The embodiments of this specific implementation are all preferred embodiments of this application and are not intended to limit the scope of protection of the application. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the scope of protection of this application.
Claims
1. A road smoothness testing device, characterized in that, The device includes a laser detector (10) and a bottom moving device. The moving device includes a bracket (1) set at the bottom of the laser detector (10). A connecting rod (3) is rotatably connected to the bottom of the bracket (1). A groove is opened at the bottom of the connecting rod (3). A moving wheel (31) is rotatably arranged in the groove. A drive wheel (22) is set at the front end of the bracket (1). A pair of drive rods (2) are set at the bottom of the bracket (1). A drive shaft (23) is fixedly set in the middle of the drive wheel (22). The drive shaft (23) and the bottom of the drive rod (2) are rotatably connected. A drive device for starting the drive shaft (23) is set at the upper end of the drive rod (2).
2. The road smoothness testing equipment according to claim 1, characterized in that, The driving device includes a drive motor (25) fixedly connected to one of the drive rods (2), a synchronous belt (27) is sleeved on the output end of the drive motor (25), and the other end of the synchronous belt (27) is sleeved on the drive shaft (23).
3. The road smoothness testing equipment according to claim 2, characterized in that, A rotating disk (24) is fixedly installed on the upper end of the drive rod (2), and a steering shaft that is rotatably connected to the bracket (1) is fixedly installed on the upper end of the rotating disk (24). A steering motor (26) is fixedly installed on the bracket (1), and the output end of the steering motor (26) is fixedly connected to the steering shaft.
4. The road smoothness testing equipment according to claim 2, characterized in that, Sealing plates (28) are fixedly installed on both sides of the pair of drive rods (2).
5. The road smoothness testing equipment according to claim 1, characterized in that, A storage battery (11) is fixedly installed on the upper end of the bracket (1), and a solar panel (12) is fixedly connected to the bracket (1) on one side of the storage battery (11).
6. The road smoothness testing equipment according to claim 5, characterized in that, A high-definition camera (13) is also fixedly installed at the front end of the bracket (1).
7. The road smoothness testing equipment according to claim 1, characterized in that, The moving wheel (31) is equipped with a braking device.
8. The road smoothness testing equipment according to claim 7, characterized in that, The braking device includes a drive cylinder (33) fixedly connected inside the connecting rod (3), and multiple brake holes (32) are opened on the axle surface of the moving wheel (31). The output end of the drive cylinder (33) is inserted into the brake hole (32).