Device for road unevenness detection

Abstract

The utility model provides a device used for road unevenness detection, which comprises a walking trolley and a sensing device arranged on the walking trolley, the walking trolley comprises a frame and a walking wheel set located below the frame, the walking wheel set comprises a plurality of walking wheels distributed in an array, and the sensing device is arranged on the walking trolley. Each walking wheel is arranged on a vertical rod, the upper portion of each vertical rod is installed in a guide sleeve and can slide in the guide sleeve, and the guide sleeves are fixed to the frame. The sensing device comprises a plurality of pressure sensors, one pressure sensor is arranged in each guide sleeve, and compression springs are arranged between the pressure sensors and the vertical rods. With the adoption of the technical scheme, compared with the prior art, the device for detecting the unevenness of the road solves the defect of inaccurate measurement caused by inclination of the trolley when the road surface pressed by tires fluctuates.

Description

Technical Field

[0001] This utility model relates to a device for detecting road unevenness, belonging to the field of road measurement technology. Background Technology

[0002] The smoothness of asphalt pavement is affected by various factors during subgrade construction, base course construction, and other details. Uneven subgrade settlement, connections between different structural layers, material inhomogeneity, defects in construction machinery, and flawed construction techniques can all lead to uneven pavement, severely obstructing traffic. Furthermore, pavement unevenness is also a key indicator of project quality. Road unevenness can be detected using road unevenness detection devices. For example, Chinese patent document CN111637857A discloses a user-friendly highway engineering quality inspection vehicle, and Chinese patent document CN109853342A discloses a damage detection device for highway maintenance. These devices typically use a distance sensor mounted on a trolley. As the trolley moves across the road, the distance sensor continuously monitors the distance from the ground to measure pavement smoothness. However, this method requires the trolley's tires to maintain a perfectly smooth surface throughout the measurement. If the surface becomes uneven, the trolley tilts, affecting the accuracy of the measurements. Utility Model Content

[0003] Therefore, the purpose of this utility model is to overcome the above-mentioned defects in the prior art and provide a road unevenness detection device that enables the sensing device to cooperate with the wheels of the traveling trolley.

[0004] To achieve the above objectives, this utility model provides a device for detecting road unevenness, comprising a traveling trolley and a sensing device mounted on the traveling trolley. The traveling trolley includes a frame and a set of traveling wheels located below the frame. The set of traveling wheels includes multiple traveling wheels arranged in an array, each traveling wheel being mounted on a vertical rod. The upper part of the vertical rod is installed in a guide sleeve and can slide within the guide sleeve, which is fixed to the frame. The sensing device includes multiple pressure sensors, one of which is disposed within each guide sleeve. A compression spring is disposed between the pressure sensor and the vertical rod.

[0005] A connecting frame is also provided on one side of the vehicle frame. A vertical guide device is provided on the connecting frame. A sliding block is installed on the guide device and can move vertically along the guide device. The sliding block is connected to a drive assembly.

[0006] The drive assembly includes a mounting bracket and handles and rollers mounted on the mounting bracket.

[0007] The drive components include a power unit.

[0008] The guiding device is a chute, a slide rail, or a slide rod that passes through the sliding block.

[0009] An air box is also provided on the frame, and an air inlet pipe is provided on the air box for inflating the air box; the air box is connected to each of the guide sleeves through a vent pipe, and the vent pipe is sealed to the vertical rod.

[0010] An electromagnet is also provided inside the guide sleeve, which can apply an upward attraction force to the vertical rod.

[0011] The vehicle frame is also equipped with a first level and a second level, which are arranged horizontally and vertically.

[0012] The frame is also equipped with multiple auxiliary support components, each including a support leg hinged to the frame and a cylinder. One end of the cylinder is hinged to the frame, and the other end is hinged to the support leg. The cylinder can drive the support leg to fold into a stowed state and drive the support leg to unfold into a supporting state.

[0013] The support leg is also equipped with a third level and a fourth level, which are arranged horizontally and vertically.

[0014] The support leg includes an auxiliary sleeve and an adjustment column that are screwed together.

[0015] A pad is screwed to the lower end of the adjusting column.

[0016] By adopting the above technical solution, the device for detecting road unevenness of this utility model has the following advantages compared with the prior art:

[0017] 1. A set of walking wheels supports the traveling trolley. Each walking wheel is mounted on a vertical rod, which is slidably installed in a guide sleeve and supported between the vertical rod and the pressure sensor by a compression spring. This allows the sensing device to cooperate with the walking wheels of the trolley. When a certain position on the road surface is uneven, the vertical height of the walking wheel passing over that position will change, thus changing the pressure applied by the compression spring to the pressure sensor. Based on the pressure change value, it can be determined whether the area is convex upward or concave downward. Compared with existing technologies, this method solves the defect of inaccurate measurement caused by the trolley tilting when the road surface is uneven.

[0018] 2. The traveling trolley is driven by a drive assembly. Therefore, the guide device and sliding block on the connecting frame can prevent the traveling trolley from being affected by changes in the height of the drive assembly. Attached Figure Description

[0019] Figure 1 This is a front view schematic diagram of the present utility model.

[0020] Figure 2 This is a side view of the present invention.

[0021] Figure 3 for Figure 1 A magnified view of part A in the image.

[0022] Figure 4 This is a structural diagram of the auxiliary support component.

[0023] In the diagram: 01. Frame; 02. First level; 03. Support base; 04. Guide groove; 05. Handle; 06. Pad; 07. Protective frame; 08. Wheel; 09. Vertical rod; 10. Wiring harness board; 11. Second level; 12. Auxiliary frame; 13. Touch screen; 14. Main control unit; 15. Connecting frame; 16. Encapsulation block; 17. Sliding block; 18. Telescopic rod; 19. Mounting frame; 20. Roller; 21. Guide sleeve; 22. Vent pipe; 23. Air box; 24. Intake pipe; 25. Electromagnet; 26. Spring; 27. Sensor; 28. Connecting pipe; 29. ​​Cylinder; 30. Auxiliary sleeve; 31. Third level; 32. Fourth level; 33. Adjusting column; 34. Foot pad. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] like Figure 1-4 As shown, this utility model discloses a device for detecting road unevenness, comprising a frame 01 with a protective frame 07 fixedly connected thereto. Multiple guide sleeves 21 are fixedly arranged in an array below the frame 01. A vertical rod 09 is slidably sleeved within the guide sleeves 21, with its upper end fixedly connected to a spring 26 and its lower end fitted with a traveling wheel 08 that contacts the ground. The upper end of the spring 26 is fixedly connected to a pressure sensor 27, enabling it to apply pressure to the pressure sensor 27. When the traveling wheel 08 presses on an uneven location, the vertical rod 09 moves up and down, causing a change in the pressure exerted by the spring 26 on the pressure sensor 27. When the uneven location is a raised area, the pressure exerted by the spring 26 on the pressure sensor 27 increases; when the uneven location is a recessed area, the pressure exerted by the spring 26 on the pressure sensor 27 decreases.

[0026] The air box 23 is fixedly connected inside the frame 01, and its upper side is connected to an air intake pipe 24 located inside the frame 01. The air box 23 conducts gas, and the high-pressure gas is transmitted through the air intake pipe 24 to the air box 23 for filling. One end of the vent pipe 22 is connected to the air box 23. The upper side of the guide sleeve 21 is provided with a connecting pipe 28 connected to the vent pipe 22. The gas in the vent pipe 22 is conducted into the guide sleeve 21 through the connecting pipe 28 to achieve pressure balance. An electromagnet 25 is also provided inside the guide sleeve 21. The electromagnet 25 is a ring electromagnet. When energized, it can generate a certain magnetic force to attract the vertical rod 09 upwards, allowing for position adjustment or force regulation.

[0027] A first level 02 and a second level 11 are respectively installed on the frame 01 along the transverse and longitudinal directions. A connecting frame 15 is provided on one side of the frame 01, located next to the first level 02. A guide groove 04 is provided inside the connecting frame 15, and a sliding block 17 is slidably disposed in the guide groove 04. A drive assembly is connected to one side of the sliding block 17. The drive assembly can be a motorized mechanism, such as a motor vehicle. Of course, the drive assembly can also be a manual mechanism. In this embodiment, the sliding block 17 is fixedly connected to a mounting frame 19. A handle 05 is fixedly connected to one side of the mounting frame 19, and a telescopic rod 18 is fixedly connected to the lower side of the mounting frame 19. A roller 20 is connected to the lower end of the telescopic rod 18. With the support of the telescopic rod 18, and in conjunction with the mounting frame 19 and the sliding block 17, external forces can be transmitted to the protective frame 07 and the frame 01 to achieve overall pushing or pulling, while avoiding vertical forces from affecting the frame 01.

[0028] Auxiliary support assemblies are installed at the four corners of the bottom of the frame 01. Each auxiliary support assembly includes a cylinder 29 and support legs. Each support leg includes an auxiliary sleeve 30 hinged to the frame 01 and an adjusting column 33 screwed to the lower end of the auxiliary sleeve. One end of the cylinder 29 is rotatably connected to the bottom of the frame 01, and the other end is hinged to the auxiliary sleeve 30. A third level 31 and a fourth level 32 are respectively installed on the support legs along the horizontal and vertical directions. Driven by the cylinder 29, the auxiliary sleeve 30 rotates to adjust the initial level of the trolley. A foot 34 is screwed to the lower end of the adjusting column 33, allowing the adjusting column 33 to rotate within the auxiliary sleeve 30, thus adjusting its position. Simultaneously, the foot 34 allows for fine-tuning of the position, facilitating the adjustment of the initial position.

[0029] A wiring harness plate 10 is connected inside the frame 01. An auxiliary frame 12, fixedly connected to the frame 01, is provided on one side of the wiring harness plate 10 to protect it. Multiple cables pass through the wiring harness plate 10 for the cable routing within the device. The auxiliary frame 12 also provides auxiliary weight balancing. A pad 06 is fixedly connected to the frame 01 to facilitate the addition of additional weight to the device, aiding in subsequent measurements. A support base 03 is fixedly connected to the protective frame 07, and the first level 02 is fixedly connected to the support base 03. The first level 02 can measure the level. A sealing block 16 is snapped onto the air intake pipe 24 on the frame 01. A maintenance door is opened on one side of the frame 01, and the sealing block 16 provides overall enclosure, facilitating internal operation. A touch screen 13 is fixedly connected to the mounting bracket 19, and a main control unit 14 is fixed inside the mounting bracket 19. The touch screen 13 can display real-time data, while the main control unit 14 handles internal data processing and provides power.

[0030] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A device for detecting road unevenness, characterized in that: The device includes a traveling trolley and a sensing device mounted on the traveling trolley. The traveling trolley includes a frame and a set of traveling wheels located below the frame. The set of traveling wheels includes multiple traveling wheels arranged in an array. Each traveling wheel is mounted on a vertical rod. The upper part of the vertical rod is installed in a guide sleeve and can slide within the guide sleeve. The guide sleeve is fixed to the frame. The sensing device includes multiple pressure sensors. One pressure sensor is installed in each guide sleeve. A compression spring is installed between the pressure sensor and the vertical rod.

2. The device for detecting road unevenness as described in claim 1, characterized in that: A connecting frame is also provided on one side of the vehicle frame. A vertical guide device is provided on the connecting frame. A sliding block is installed on the guide device and can move vertically along the guide device. The sliding block is connected to a drive assembly.

3. The device for detecting road unevenness as described in claim 2, characterized in that: The drive assembly includes a mounting bracket and handles and rollers mounted on the mounting bracket.

4. The device for detecting road unevenness as described in claim 2, characterized in that: The drive components include a power unit.

5. The device for detecting road unevenness as described in claim 2, characterized in that: The guiding device is a chute, a slide rail, or a slide rod that passes through the sliding block.

6. The apparatus for detecting road unevenness as described in any one of claims 1-5, characterized in that: An air box is also provided on the frame, and an air inlet pipe is provided on the air box for inflating the air box; the air box is connected to each of the guide sleeves through a vent pipe, and the vent pipe is sealed to the vertical rod.

7. The apparatus for detecting road unevenness as described in any one of claims 1-5, characterized in that: An electromagnet is also provided inside the guide sleeve, which can apply an upward attraction force to the vertical rod.

8. The apparatus for detecting road unevenness as described in any one of claims 1-5, characterized in that: The vehicle frame is also equipped with a first level and a second level, which are arranged horizontally and vertically.

9. The apparatus for detecting road unevenness as described in any one of claims 1-5, characterized in that: The frame is also equipped with multiple auxiliary support components, each including a support leg hinged to the frame and a cylinder. One end of the cylinder is hinged to the frame, and the other end is hinged to the support leg. The cylinder can drive the support leg to fold into a stowed state and drive the support leg to unfold into a supporting state.

10. The device for detecting road unevenness as described in claim 9, characterized in that: The support leg includes an auxiliary sleeve and an adjustment column that are screwed together.

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