A road surface quality testing device

Abstract

This utility model relates to the field of highway engineering technology and discloses a road surface quality testing device, including a trolley with two front wheels and two rear wheels symmetrically arranged at the bottom of the trolley. A water tank, a control and storage module, and a connecting rod are fixedly installed on the top surface of the trolley. A measuring cylinder is slidably fitted on the trolley. An intermittent testing component is movably mounted on one of the rear wheels and includes a semi-circular gear, a gear, a cam, a connecting rod, and a testing module. A sweeping component is movably mounted at the bottom of the trolley and includes a sweeping brush, a rotating shaft, a scraper, a guide rod, a swing shaft, and a cylinder seat. The device uses a laser rangefinder in the testing module to scan the road surface contour in real time, generating a smoothness curve. A mechanical probe identifies cracks, and a mechanical counter records the number of rear wheel rotations to detect mileage. The measuring cylinder and water tank detect the permeability of the road surface. Multiple indicators are detected simultaneously without the need for multiple operations, improving the ease of use of the device.

Description

Technical Field

[0001] This utility model belongs to the field of highway engineering technology, specifically, it relates to a road surface quality testing device. Background Technology

[0002] With the expansion of highway construction and the growth of heavy traffic, traditional manual inspection is inefficient and inaccurate, making it difficult to meet the needs of rapid maintenance. Therefore, a road quality monitoring device has been specially set up to evaluate the physical characteristics, structural integrity and performance of road surfaces. By detecting the physical properties of materials such as concrete and asphalt, the construction mix ratio can be optimized to maintain the road surface in a targeted manner.

[0003] The prior art discloses a road surface quality testing device (CN219694847U), including a support base and a measuring cylinder. A connecting rod, L-shaped, is located at the rear end of the support base, with a threaded hole at its top. A drive screw is located in the middle of the threaded hole, and the measuring cylinder is rotatably connected to the bottom end of the drive screw. A through hole is provided on the support base aligned with the measuring cylinder. The axes of the drive screw, measuring cylinder, and through hole are collinear. An adjusting rod is located on the side of the support base away from the measuring cylinder, and a water tank is mounted on the adjusting rod. A drain pipe is located at the bottom side of the water tank, and a throttle valve is installed on the drain pipe. A water inlet pipe is located near the top of the measuring cylinder, and the water inlet pipe and drain pipe are connected by a flexible hose. Mounting brackets are inserted into both sides of the rear end of the support base. The measuring cylinder and the support base are connected by the drive screw, facilitating the downward pressing of the measuring cylinder onto the road surface.

[0004] The search revealed that the original patent only used a measuring cylinder for pressure testing, which could not simultaneously detect multiple indicators such as flatness and cracks, requiring repeated testing. Furthermore, it did not have a self-cleaning device, and the sensor was easily contaminated in rainy or dusty environments, leading to data deviation.

[0005] In view of this, this utility model is hereby proposed. Utility Model Content

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0007] A road surface quality testing device, comprising

[0008] The trolley has two front wheels and two rear wheels symmetrically arranged at its bottom. A water tank, a control storage module and a connecting rod are fixedly installed on the top surface of the trolley. A drive screw is threaded onto the connecting rod. A measuring cylinder is slidably fitted onto the trolley. The drive screw is rotatably mounted on the top surface of the measuring cylinder.

[0009] An intermittent detection assembly is movably mounted on one of the rear wheels. The intermittent detection assembly includes a semi-circular gear, a gear, a cam, a connecting rod, and a detection module. The connecting rod is hinged between the cam and the detection module. The cam is fixedly mounted on one side of the gear. The gear is rotatably mounted on the bottom of the trolley. The semi-circular gear is fixedly mounted on one side of one of the rear wheels. The control storage module is electrically connected to the detection module.

[0010] A cleaning assembly is movably mounted at the bottom of a trolley. The cleaning assembly includes a cleaning brush, a rotating shaft, a scraper, a guide rod, a swing shaft, and a cylinder seat. The guide rod is hinged to the cylinder seat, and the swing shaft is rotatably connected to the rotating shaft. The rotating shaft is fixedly mounted between the two front wheels. The scraper is fixedly mounted on the bottom surface of the guide rod. Two scrapers, guide rods, swing shafts, and cylinder seats are symmetrically arranged. The cleaning brush is rotatably mounted at the bottom of the trolley.

[0011] In a preferred embodiment of this utility model, a protective box is fixedly installed on one corner of the bottom surface of the trolley, the intermittent detection component is movably installed inside the protective box, a semi-circular gear and a gear are rotatably connected on the inner wall of the protective box, the gear transmission is installed above the semi-circular gear, and the semi-circular gear drives the meshing gear.

[0012] In a preferred embodiment of this utility model, a semi-circular supplementary disk is fixedly provided on the side of the semi-circular gear away from the rear wheel, and a guide plate is fixedly provided between the side of the gear away from the protective box and the cam. The end of the guide plate away from the circle is opened into an arc surface, and the guide plate fits with the curved surface of the supplementary disk through the arc surface.

[0013] In a preferred embodiment of this utility model, one end of the cam is fixedly connected to the center of the gear, and the other end of the cam is hinged to the detection module via the same connecting rod, with the connecting rod located on the side of the cam away from the guide plate.

[0014] In a preferred embodiment of this utility model, the detection module is equipped with a laser rangefinder and a mechanical probe, the control and storage module is equipped with a controller, a mechanical counter and a data collector, and the cleaning brush is rotatably mounted on one side of the two rear wheels.

[0015] In a preferred embodiment of this utility model, the rotating shaft is composed of two round rods and a V-shaped rod, the swing shaft is composed of a sleeve and a nail-shaped shaft, the cylinder seat is composed of an annular cylinder and a V-shaped seat, the two ends of the V-shaped rod are respectively sleeved with the sleeve of the swing shaft, the end of the nail-shaped shaft away from the sleeve is sleeved with the annular cylinder of the cylinder seat, and the V-shaped seat is hinged to one end of the guide rod.

[0016] In a preferred embodiment of this utility model, the guide rod is a square rod, and two square plates are symmetrically fixed on the bottom surface of the trolley, with the guide rod passing through the sliding square plates.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] 1. By setting up an intermittent detection component, the laser rangefinder in the detection module scans the road surface contour in real time, generates a smoothness curve, identifies cracks using a mechanical probe, records the number of rear wheel rotations using a mechanical counter to detect mileage, and finally detects the permeability of the road surface using a measuring cylinder and a water tank. Multi-dimensional indicators are detected simultaneously without the need for multiple operations, improving the ease of use of the device.

[0019] 2. By setting up a sweeping assembly, the scraper is driven to reciprocate through the cooperation of the rotating shaft, swing shaft, cylinder seat and guide rod to remove obstacles on the road surface. Then, the sweeping brush is used to sweep the fallen leaves and garbage on the road surface for a second time, avoiding garbage from contaminating the detection module, thereby ensuring the accuracy of the detection data.

[0020] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0021] In the attached diagram:

[0022] Figure 1 This is a schematic diagram of the overall state of this utility model;

[0023] Figure 2 This is a schematic diagram of the present invention from a low angle.

[0024] Figure 3 This is a partial disassembly diagram of the intermittent detection component of this utility model;

[0025] Figure 4 This is a partial schematic diagram of the cleaning component of this utility model;

[0026] Figure 5 This utility model Figure 4 Enlarged diagram of point A in the middle.

[0027] In the diagram: 10. Trolley; 11. Water tank; 12. Front wheel; 13. Rear wheel; 14. Control and storage module; 15. Connecting rod; 16. Measuring cylinder; 17. Drive screw; 18. Protective box; 19. Cleaning brush; 20. Rotating shaft; 21. Scraper; 22. Semi-circular gear; 23. Supplementing disc; 24. Gear; 25. Guide plate; 26. Cam; 27. Connecting rod; 28. Detection module; 29. ​​Guide rod; 30. Swing shaft; 31. Cylinder base. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0029] A road surface quality testing device, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, including

[0030] The trolley 10 has two front wheels 12 and two rear wheels 13 symmetrically arranged at its bottom. A water tank 11, a control storage module 14 and a connecting rod 15 are fixedly arranged on the top surface of the trolley 10. A drive screw 17 is threaded onto the connecting rod 15. A measuring cylinder 16 is slidably fitted onto the trolley 10. The drive screw 17 is rotatably arranged on the top surface of the measuring cylinder 16.

[0031] An intermittent detection component is movably mounted on one of the rear wheels 13. The intermittent detection component includes a semi-circular gear 22, a gear 24, a cam 26, a connecting rod 27, and a detection module 28. The connecting rod 27 is hinged between the cam 26 and the detection module 28. The cam 26 is fixedly mounted on one side of the gear 24. The gear 24 is rotatably mounted on the bottom of the trolley 10. The semi-circular gear 22 is fixedly mounted on one side of one of the rear wheels 13. The control storage module 14 is electrically connected to the detection module 28.

[0032] The cleaning assembly is movably mounted at the bottom of the trolley 10. The cleaning assembly includes a cleaning brush 19, a rotating shaft 20, a scraper 21, a guide rod 29, a swing shaft 30, and a drum seat 31. The guide rod 29 is hinged to the drum seat 31, and the swing shaft 30 is rotatably connected to the rotating shaft 20. The rotating shaft 20 is fixedly mounted between the two front wheels 12. The scraper 21 is fixedly mounted on the bottom surface of the guide rod 29. There are two scrapers 21, two guide rods 29, two swing shafts 30, and two drum seats 31. The cleaning brush 19 is rotatably mounted at the bottom of the trolley 10.

[0033] Specifically, during operation, the movement of the trolley 10 causes the two front wheels 12 and the two rear wheels 13 to rotate and cooperate. The two front wheels 12 drive the scraper 21 to clear obstacles from the road surface. Then, the sweeping brush 19 performs a secondary sweeping of the road surface. After the road surface is clean, the intermittent detection component drives the detection module 28 to detect different road sections at certain intervals. After the detection is completed, it is selected whether to conduct a water permeability test on the road surface according to the detection needs. When in use, the operator rotates the drive screw 17, which causes the drive screw 17 to drive the measuring cylinder 16 to press firmly on the road surface. Then, water from the water tank 11 is poured into the measuring cylinder 16. When the water in the measuring cylinder 16 reaches a suitable height, the water supply from the water tank 22 is stopped. Afterward, the operator observes the drop in water level to determine whether the water permeability of the road surface meets the standard.

[0034] It is worth noting that the water permeability testing method used in this device, including the water tank 11, connecting rod 15, connecting link 16, and drive screw 17, are all described in detail in the prior art of a highway engineering pavement quality testing device (CN219694847U), which explains the specific usage and installation location. They only need to be compatible with the specifications in this device, so this device will not be described in detail.

[0035] like Figure 2 and Figure 3 As shown, a protective box 18 is fixedly installed on one corner of the bottom surface of the trolley 10. The intermittent detection component is movably installed inside the protective box 18. A semi-circular gear 22 and a gear 24 are rotatably connected on the inner wall of the protective box 18. The gear 24 is positioned above the semi-circular gear 22, and the semi-circular gear 22 drives the meshing gear 24.

[0036] like Figure 3 As shown, a semi-circular supplementary disk 23 is fixedly installed on the side of the semi-circular gear 22 away from the rear wheel 13. A guide plate 25 is fixedly installed between the side of the gear 24 away from the protective box 18 and the cam 26. The end of the guide plate 25 away from the circle is opened into an arc surface. The guide plate 25 fits with the curved surface of the supplementary disk 23 through the arc surface.

[0037] like Figure 3 As shown, one end of the cam 26 is fixedly connected to the center of the gear 24, and the other end of the cam 26 is hinged to the detection module 28 via the same connecting rod 27. The connecting rod 27 is located on the side of the cam 26 away from the guide plate 25. Figure 1 , Figure 2 and Figure 3 As shown, the detection module 28 is equipped with a laser rangefinder and a mechanical probe, the control and storage module 14 is equipped with a controller, a mechanical counter and a data collector, and the cleaning brush 19 is rotatably mounted on one side of the two rear wheels 13.

[0038] The working principle is as follows: During use, the controller drives the start of the detection module. After the sweeping brush 19 completes the secondary sweeping, when the fallen leaves and garbage move away from the detection range of the detection module 28, the rotation of one of the rear wheels 13 drives the synchronous rotation of the semi-circular gear 22 and the supplementary disk 23. The rotating semi-circular gear 22 intermittently meshes with the gear 24, and the gear 24 intermittently rotates to drive the guide plate 25. When the arc surface of the guide plate 25 is in contact with the curved surface of the supplementary disk 23, the gear 24 is in a stationary state. At this time, the detection module 28 approaches the road surface. At this time, the laser rangefinder scans and generates the smoothness curve of the road surface section, and the mechanical probe detects whether there are cracks in the road surface section. Then the detection module transmits the detection data to the data collector. The mechanical counter records the number of rotations of the semi-circular gear 22 and the rear wheel 13 to record the mileage. After that, the detection results are displayed through the mechanical counter and the data collector. Finally, the permeability of the road surface is detected by the measuring cylinder 16 and the water tank 11. The multi-dimensional indicators are detected simultaneously without the need for multiple operations, which improves the convenience of the device.

[0039] It is worth noting that the laser rangefinder used in this device is used to scan the road surface contour in real time. The mechanical probe can be connected to a micro switch to identify cracks, and the controller controls the start-up of the detection module. The mechanical counter senses and records the mileage and collects all the detection data in real time.

[0040] like Figure 4 and Figure 5 As shown, the rotating shaft 20 consists of two round rods and a V-shaped rod, the swing shaft 30 consists of a sleeve and a nail-shaped shaft, and the cylinder seat 31 consists of an annular cylinder and a V-shaped seat. The two ends of the V-shaped rod are respectively fitted with sleeves of the swing shaft 30, and the end of the nail-shaped shaft away from the sleeve is fitted with the annular cylinder of the cylinder seat 31. The V-shaped seat is hinged to one end of the guide rod 29; Figure 1 , Figure 2 and Figure 5 As shown, the guide rod 29 is a square rod, and two square plates are symmetrically fixed on the bottom surface of the trolley 10. The guide rod 29 passes through the sliding square plates.

[0041] The working principle is as follows: During use, the staff drives the trolley 10 to move. The trolley 10 works in conjunction with two front wheels 12 and two rear wheels 13. The two front wheels 12 drive the same rotating shaft 20 to rotate, thereby driving the swing shaft 30 to swing through the V-shaped rod. The swinging swing shaft 30 drives the cylinder seat 31 to move through the nail-shaped shaft. The cylinder seat 31 pushes the guide rod 29 to move back and forth in the square plate. The guide rod 29 drives the corresponding scraper 21 to push fallen leaves and garbage on the road surface away from the detection range of the detection module 28, ensuring that the detection range is clean and tidy, avoiding garbage contamination of the detection module, and thus ensuring the accuracy of the detection data.

[0042] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A road surface quality detecting device characterized by comprising: include A trolley (10) has two front wheels (12) and two rear wheels (13) symmetrically arranged at its bottom. A water tank (11), a control storage module (14) and a connecting rod (15) are fixedly arranged on the top surface of the trolley (10). A drive screw (17) is threaded onto the connecting rod (15). A measuring cylinder (16) is slidably fitted onto the trolley (10). The drive screw (17) is rotatably arranged on the top surface of the measuring cylinder (16). An intermittent detection assembly is movably mounted on one of the rear wheels (13). The intermittent detection assembly includes a semi-circular gear (22), a gear (24), a cam (26), a connecting rod (27), and a detection module (28). The connecting rod (27) is hinged between the cam (26) and the detection module (28). The cam (26) is fixedly mounted on one side of the gear (24). The gear (24) is rotatably mounted on the bottom of the trolley (10). The semi-circular gear (22) is fixedly mounted on one side of one of the rear wheels (13). The control storage module (14) is electrically connected to the detection module (28). The cleaning assembly is movably disposed at the bottom of the trolley (10). The cleaning assembly includes a cleaning brush (19), a rotating shaft (20), a scraper (21), a guide rod (29), a swing shaft (30), and a cylinder seat (31). The guide rod (29) is hinged to the cylinder seat (31). The swing shaft (30) is rotatably connected to the rotating shaft (20). The rotating shaft (20) is fixedly disposed between the two front wheels (12). The scraper (21) is fixedly disposed on the bottom surface of the guide rod (29). There are two scrapers (21), guide rods (29), swing shafts (30), and cylinder seats (31) symmetrically disposed. The cleaning brush (19) is rotatably disposed at the bottom of the trolley (10).

2. The road surface quality detection device according to claim 1, wherein A protective box (18) is fixedly installed on one corner of the bottom surface of the trolley (10). The intermittent detection component is movably installed inside the protective box (18). A semi-circular gear (22) and a gear (24) are rotatably connected on the inner wall of the protective box (18). The gear (24) is driven above the semi-circular gear (22). The semi-circular gear (22) drives the meshing gear (24).

3. The road surface quality testing device according to claim 2, characterized in that, A semi-circular supplementary disk (23) is fixedly provided on the side of the semi-circular gear (22) away from the rear wheel (13). A guide plate (25) is fixedly provided between the side of the gear (24) away from the protective box (18) and the cam (26). The end of the guide plate (25) away from the circle is opened as an arc surface. The guide plate (25) fits against the curved surface of the supplementary disk (23) through the arc surface.

4. The road surface quality detection device according to claim 3, wherein One end of the cam (26) is fixedly connected to the center of the gear (24), and the other end of the cam (26) is hinged to the detection module (28) via the same connecting rod (27). The connecting rod (27) is located on the side of the cam (26) away from the guide plate (25).

5. The road surface quality detection device according to claim 4, wherein The detection module (28) is equipped with a laser rangefinder and a mechanical probe. The control and storage module (14) is equipped with a controller, a mechanical counter and a data collector. The cleaning brush (19) is rotatably mounted on one side of the two rear wheels (13).

6. The road surface quality detection device according to claim 1, wherein The rotating shaft (20) consists of two round rods and a V-shaped rod. The swing shaft (30) consists of a sleeve and a nail-shaped shaft. The cylinder seat (31) consists of an annular cylinder and a V-shaped seat. The two ends of the V-shaped rod are respectively sleeved on the sleeve of the swing shaft (30). The end of the nail-shaped shaft away from the sleeve is sleeved on the annular cylinder of the cylinder seat (31). The V-shaped seat is hinged to one end of the guide rod (29).

7. The road surface quality detection device according to claim 6, wherein The guide rod (29) is a square rod, and two square plates are symmetrically fixed on the bottom surface of the trolley (10). The guide rod (29) passes through the sliding square plates.

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