A smart road maintenance device

By designing adjustable-height and rotating cameras, as well as sweeping and blowing structures on unmanned vehicles, the problems of incomplete imaging and obstruction by debris have been solved, enabling comprehensive and clear imaging and cleaning of road surface cracks, improving analysis accuracy and reducing maintenance costs.

CN224280968UActive Publication Date: 2026-05-26SHAANXI EXPRESSWAY MECHANIZATION ENG CO LTD +2

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHAANXI EXPRESSWAY MECHANIZATION ENG CO LTD
Filing Date
2025-04-03
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing unmanned vehicles used for road crack identification lack height adjustment and left-right rotation structures, resulting in incomplete imaging and a lack of structures for cleaning debris at the cracks, affecting analysis and recording.

Method used

An intelligent road maintenance device was designed, which includes a crack imaging structure, a sweeping structure, and a blowing structure. The camera is adjustable in height and can rotate left and right. It is equipped with a sweeping brush and a blower to remove debris, achieving comprehensive imaging and cleaning.

Benefits of technology

It enables comprehensive imaging and cleaning of road surface cracks, avoids obstruction by debris, improves the accuracy of analysis and recording, and reduces maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses an intelligent road maintenance device, including an unmanned vehicle, a crack imaging structure, a sweeping structure, and a blowing structure. The crack imaging structure is mounted on the top of the unmanned vehicle and aligned with the road surface; the sweeping structure is mounted on the front of the unmanned vehicle via a mounting bracket; and the blowing structure is mounted on the sweeping structure. This utility model's crack imaging structure provides more comprehensive recording of cracks on the road surface, and the unmanned vehicle can clean debris from the cracks, preventing obstruction of the captured image and ensuring accurate analysis and recording.
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Description

Technical Field

[0001] This utility model relates to the field of road surface detection technology, and more specifically to an intelligent road surface maintenance device. Background Technology

[0002] Road surface cracks refer to cracks or damage to the road surface caused by factors such as traffic load, temperature changes, humidity changes, or material aging, which may affect driving safety and the service life of the road.

[0003] By deploying unmanned vehicles with pavement crack detection capabilities, the efficiency of pavement crack inspection can be improved. However, existing unmanned vehicles for pavement crack detection have the following drawbacks:

[0004] 1) Existing cameras used by unmanned vehicles for road crack detection lack height adjustment and left-right rotation structures, resulting in incomplete recording of road cracks.

[0005] 2) Existing unmanned vehicles used for road crack identification lack a structure for cleaning up debris such as fallen leaves at the cracks. Debris can obstruct the images captured of the cracks, affecting analysis and recording.

[0006] Therefore, providing an intelligent road maintenance device that can achieve comprehensive and clear imaging of ground cracks is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0007] In view of this, the present invention provides an intelligent road maintenance device to solve the problems mentioned in the background art, such as the lack of height adjustment and left and right rotation structure of the camera of the existing unmanned vehicle for road crack recognition, which often results in incomplete shooting and recording of road cracks, and the lack of a structure for cleaning up fallen leaves and other debris at the cracks, which can obstruct the shooting of cracks and affect analysis and recording.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A smart road maintenance device includes an unmanned vehicle (1), a crack imaging structure, a sweeping structure (14), and a blowing structure (17). The crack imaging structure is installed on the top of the unmanned vehicle (1) and aligned with the road surface. The sweeping structure (14) is installed on the front side of the unmanned vehicle (1) via a mounting base (13). The blowing structure (17) is installed on the sweeping structure (14).

[0010] By adopting the above technical solutions, the beneficial effects of this utility model are as follows:

[0011] The camera can adjust its height and rotate left and right, providing a more comprehensive view of cracks in the road surface. The unmanned vehicle can also clear debris from the cracks to avoid obstructing the view and affecting analysis and recording.

[0012] Furthermore, the crack imaging structure includes a vertical shell (3), a lead screw (4), a travel block (6), a support rod (7), a connecting seat (9), a camera (10), a first reduction motor (5), and a second reduction motor (11). The vertical shell (3) is fixed to the top of the unmanned vehicle (1), and a displacement port (8) is provided on the side wall of the vertical shell (3). The lead screw (4) is installed inside the vertical shell (3) through a bearing. The travel block (6) is threadedly connected to the lead screw (4). One end of the support rod (7) is fixed to the travel block (6), and the other end of the support rod (7) extends out of the displacement port (8) and is slidably connected to it. The connecting seat (9) is fixed to the extended end of the support rod (7). The camera (10) is rotatably connected to the connecting seat (9). The first reduction motor (5) is installed on the top of the vertical shell (3) and is fixedly connected to the top of the lead screw (4). The second reduction motor (11) is installed on the connecting seat (9) and connected to the camera (10).

[0013] Furthermore, the cleaning structure (14) includes a cylinder (141), a displacement plate (142), two geared motors (143), and two cleaning brushes (144). The cylinder (141) is vertically fixed in the middle of the inner top wall of the mounting base (13). The displacement plate (142) is fixed at the extended bottom end of the cylinder (141). The two geared motors (143) are respectively installed on both sides of the displacement plate (142), and the output end of each geared motor (143) extends through the displacement plate (142) and out of the bottom of the mounting base (13). The cleaning brushes (144) are installed on the output end of the geared motors (143).

[0014] The beneficial effect of adopting the above-mentioned further technical solution is that the cleaning structure removes dust and gravel from the crack, ensuring the clarity of the crack image.

[0015] Furthermore, slide rails (16) are fixedly connected to the bottom of both sides of the inner wall of the mounting base (13), and sliders (15) are fixedly connected to both ends of the displacement plate (142), and the sliders (15) are slidably connected to the surface of the slide rails (16).

[0016] Furthermore, the blowing structure (17) includes a fan (171), an air duct (172), an air distribution box (173), and multiple nozzles (174). The fan (171) is fixed to the top of the mounting base (13), and the air distribution box (173) is fixed to the side wall of the mounting base (13). The outer side wall of the air distribution box (173) has multiple nozzles (174). The output end of the fan (171) is connected to the air distribution box (173) through the air duct (172).

[0017] The beneficial effect of adopting the above-mentioned further technical solution is that the cleaning structure can blow away fallen leaves and other debris from the cracks.

[0018] Furthermore, the unmanned vehicle (1) includes an unmanned vehicle body and an electrical box (2), the electrical box (2) being installed on the unmanned vehicle body.

[0019] Furthermore, a circuit board (18) is fixedly installed on the inner wall of the electrical box (2), a wireless communication module (19) is fixedly installed on one side of the top of the circuit board (18), a data processing and analysis module (20) is fixedly installed in the middle of the top of the circuit board (18), and a GPS locator (21) is fixedly installed on the other side of the top of the circuit board (18). The camera (10) and the GPS locator (21) are electrically connected to the wireless communication module (19) through the data processing and analysis module (20).

[0020] The beneficial effect of adopting the above-mentioned further technical solution is that the captured data can be remotely transmitted through the wireless communication module.

[0021] Furthermore, both the first geared motor (5) and the second geared motor (11) are surrounded by protective covers (12).

[0022] The beneficial effect of adopting the above-mentioned further technical solution is that it can protect the motor from damage caused by impacts from external objects.

[0023] Therefore, this utility model provides an intelligent road maintenance device, which has the following advantages compared with the prior art:

[0024] 1) By starting the first geared motor to drive the lead screw to rotate, under the guidance of the displacement port on the support rod, the stroke block and connecting seat can be moved vertically to adjust the height position of the camera. The second geared motor can also be started to drive the camera to rotate left and right to change its orientation, so that the unmanned vehicle can record the cracks on the road surface more comprehensively.

[0025] 2) When debris obstructs the road surface cracks, the blower on the cleaning structure is activated to introduce air, which is then blown out through several nozzles on the air distribution box via the air duct to blow away the debris. The cylinder on the sweeping structure can also be activated to move the sweeping brush downwards, and the reduction motor can be activated to drive the sweeping brush to rotate rapidly, sweeping the cracks to ensure the clarity of the captured image. In this way, the unmanned vehicle can clean the debris in the road surface cracks, avoiding obstruction of the captured image and affecting analysis and recording.

[0026] 3) The hardware development and design included a specific algorithm for identifying road surface cracks. It innovatively proposed the combination of a vehicle and crack identification technology, which facilitates intelligent road hazard monitoring and maintenance. It allows for early prevention and repair measures to avoid further deterioration of the damage and reduce maintenance costs. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0028] Figure 1 The attached figure is a schematic diagram of the overall structure of an intelligent road maintenance device provided by this utility model;

[0029] Figure 2 The attached figure is a cross-sectional view of the crack imaging structure provided by this utility model;

[0030] Figure 3 The attached figure is a cross-sectional view of the mounting base and its internal cleaning structure provided by this utility model;

[0031] Figure 4 The attached figure is a top cross-sectional view of the electrical box provided by this utility model.

[0032] In the diagram: 1. Unmanned vehicle; 2. Electrical box; 3. Vertical shell; 4. Lead screw; 5. Gear motor one; 6. Stroke block; 7. Support rod; 8. Displacement port; 9. Connecting seat; 10. Camera; 11. Gear motor two; 12. Protective cover; 13. Mounting seat; 14. Cleaning structure; 141. Cylinder; 142. Displacement plate; 143. Gear motor three; 144. Cleaning brush; 15. Slider; 16. Slide rail; 17. Cleaning and blowing structure; 171. Fan; 172. Air duct; 173. Air distribution box; 174. Nozzle; 18. Circuit board; 19. Wireless communication module; 20. Data processing and analysis module; 21. GPS locator. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] like Figure 1-4 As shown in the figure, this utility model discloses an intelligent road maintenance device, including an unmanned vehicle 1, a crack imaging structure, a sweeping structure 14, and a blowing structure 17. The crack imaging structure is installed on the top of the unmanned vehicle 1 and aligned with the road surface; the sweeping structure 14 is installed on the front side of the unmanned vehicle 1 via a mounting base 13; and the blowing structure 17 is installed on the sweeping structure 14. This utility model's crack imaging structure provides more comprehensive recording of cracks on the road surface, and the unmanned vehicle can clean debris from the cracks, avoiding obstruction of the captured image and affecting analysis and recording.

[0035] Specifically, the crack imaging structure includes a vertical shell 3, a lead screw 4, a travel block 6, a support rod 7, a connecting seat 9, a camera 10, a first geared motor 5, and a second geared motor 11. The vertical shell 3 is fixed to the top of the unmanned vehicle 1, and a displacement port 8 is opened on the side wall of the vertical shell 3. The lead screw 4 is installed inside the vertical shell 3 through a bearing. The travel block 6 is threadedly connected to the lead screw 4. One end of the support rod 7 is fixed to the travel block 6, and the other end of the support rod 7 extends out of the displacement port 8 and is slidably connected to it. The connecting seat 9 is fixed to the extended end of the support rod 7. The camera 10 is rotatably connected to the connecting seat 9 and is used to photograph and record cracks in the road surface. The first geared motor 5 is installed on the top of the vertical shell 3 and is fixedly connected to the top of the lead screw 4. The second geared motor 11 is installed on the connecting seat 9 and connected to the camera 10. In use, by starting the first geared motor 5 to drive the lead screw 4 to rotate, the stroke block 6 and the connecting seat 9 to move vertically, the height position of the camera 10 can be adjusted. The second geared motor 11 can be started to drive the camera 10 to rotate left and right, changing its orientation, so that the unmanned vehicle can record more comprehensively the cracks on the road surface.

[0036] Specifically, the cleaning structure 14 includes a cylinder 141, a displacement plate 142, two geared motors 143, and two cleaning brushes 144. The cylinder 141 is vertically fixed in the middle of the top wall inside the mounting base 13; the displacement plate 142 is fixed to the extended bottom end of the cylinder 141; the two geared motors 143 are respectively installed on both sides of the displacement plate 142, and the output end of each geared motor 143 extends through the displacement plate 142 and out of the bottom of the mounting base 13; the cleaning brushes 144 are installed on the output end of the geared motors 143. When in use, if debris obstructs the cracks in the road surface, the blower 171 on the cleaning structure 17 is activated to introduce air, which is then blown out through several nozzles 174 on the air distribution box 173 via the air duct 172 to blow away the debris. Simultaneously, the cylinder 141 on the sweeping structure 14 is activated to move the sweeping brush 144 downward, and the reduction motor 143 is activated to drive the sweeping brush 144 to rotate rapidly, sweeping the cracks to ensure clear footage. In this way, the unmanned vehicle can clean up debris in the cracks in the road surface, avoiding obstruction of the footage and affecting analysis and recording.

[0037] To further optimize the technical solution of this utility model, slide rails 16 are fixedly connected to the bottom of both sides of the inner wall of the mounting base 13, and sliders 15 are fixedly connected to both ends of the displacement plate 142. The sliders 15 are slidably connected to the surface of the slide rails 16, which serve as guides and limiters.

[0038] Specifically, the cleaning structure 17 includes a blower 171, an air duct 172, an air distribution box 173, and multiple nozzles 174. The blower 171 is fixed to the top of the mounting base 13, and the air distribution box 173 is fixed to the side wall of the mounting base 13. Multiple nozzles 174 are provided on the outer side wall of the air distribution box 173. The output end of the blower 171 is connected to the air distribution box 173 through the air duct 172. The cleaning structure can blow away fallen leaves and other debris from the cracks.

[0039] Specifically, the unmanned vehicle 1 includes the unmanned vehicle body and the electrical box 2, with the electrical box 2 installed on the unmanned vehicle body.

[0040] Specifically, a circuit board 18 is fixedly installed on the inner wall of the electrical box 2. A wireless communication module 19 is fixedly installed on one side of the top of the circuit board 18. A data processing and analysis module 20 is fixedly installed in the middle of the top of the circuit board 18. A GPS locator 21 is fixedly installed on the other side of the top of the circuit board 18. The camera 10 and the GPS locator 21 are electrically connected to the wireless communication module 19 through the data processing and analysis module 20. The captured data can be remotely transmitted through the wireless communication module.

[0041] To further optimize the technical solution of this utility model, protective covers 12 are provided on the outer sides of both the first geared motor 5 and the second geared motor 11 to protect the motors from damage caused by impacts from external objects.

[0042] The working process of this utility model:

[0043] The camera 10 mounted on top of the unmanned vehicle 1 captures images of the road surface. Combined with the data processing and analysis module 20, it analyzes whether cracks have occurred, uses a GPS locator 21 to pinpoint the location of cracks, and transmits the data remotely via a wireless communication module 19. Both the first and second reduction motors 5 and 11 are geared motors. Starting the first reduction motor 5 rotates the lead screw 4, which, guided by the displacement port 8 on the support rod 7, causes the travel block 6 and connecting seat 9 to move vertically, adjusting the height of the camera 10. The second reduction motor 11 can also be started to rotate the camera 10 left and right. By changing its orientation, the unmanned vehicle can capture more comprehensive images and records of cracks in the road surface. When debris obstructs the cracks, the blower 171 on the cleaning structure 17 is activated to introduce air, which is then blown out through several nozzles 174 on the air distribution box 173 via the air duct 172 to remove the debris. Simultaneously, the cylinder 141 on the sweeping structure 14 is activated to move the sweeping brush 144 downwards, and the reduction motor 3 143 is activated to drive the sweeping brush 144 to rotate rapidly, sweeping the cracks to ensure clear images. In this way, the unmanned vehicle can clean up debris in the cracks in the road surface, avoiding obstruction of the images and affecting analysis and recording.

[0044] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0045] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An intelligent road maintenance device, comprising an unmanned vehicle (1), characterized in that... It also includes a crack imaging structure, a sweeping structure (14), and a blowing structure (17). The crack imaging structure is mounted on the top of the unmanned vehicle (1) and aligned with the road surface. The sweeping structure (14) is mounted on the front side of the unmanned vehicle (1) via a mounting base (13). The blowing structure (17) is mounted on the sweeping structure (14). The crack imaging structure includes a vertical shell (3), a lead screw (4), a travel block (6), a support rod (7), a connecting seat (9), a camera (10), a first geared motor (5), and a second geared motor (11). The vertical shell (3) is fixed to the top of the unmanned vehicle (1), and a displacement port (8) is opened on the side wall of the vertical shell (3). The lead screw (4) is installed inside the vertical shell (3) through a bearing. The travel block (6) is threadedly connected to the lead screw (4). One end of the support rod (7) is fixed on the travel block (6), and the other end of the support rod (7) extends out of the displacement port (8) and is slidably connected to it. The connecting seat (9) is fixed to the extended end of the support rod (7). The camera (10) is rotatably connected to the connecting seat (9). The first geared motor (5) is installed on the top of the vertical shell (3) and is fixedly connected to the top of the lead screw (4). The second geared motor (11) is installed on the connecting seat (9) and is connected to the camera (10).

2. The intelligent road maintenance device according to claim 1, characterized in that, The cleaning structure (14) includes a cylinder (141), a displacement plate (142), two geared motors (143), and two cleaning brushes (144). The cylinder (141) is vertically fixed in the middle of the inner top wall of the mounting base (13). The displacement plate (142) is fixed to the extended bottom end of the cylinder (141). The two geared motors (143) are respectively installed on both sides of the displacement plate (142), and the output end of each geared motor (143) extends through the displacement plate (142) and out of the bottom of the mounting base (13). The cleaning brushes (144) are installed on the output end of the geared motors (143).

3. The intelligent road maintenance device according to claim 2, characterized in that, The bottom of both sides of the inner wall of the mounting base (13) is fixedly connected to a slide rail (16), and both ends of the displacement plate (142) are fixedly connected to a slider (15), and the slider (15) is slidably connected to the surface of the slide rail (16).

4. The intelligent road maintenance device according to claim 2, characterized in that, The blowing structure (17) includes a fan (171), an air duct (172), an air distribution box (173), and multiple nozzles (174). The fan (171) is fixed to the top of the mounting base (13), and the air distribution box (173) is fixed to the side wall of the mounting base (13). Multiple nozzles (174) are provided on the outer side wall of the air distribution box (173). The output end of the fan (171) is connected to the air distribution box (173) through the air duct (172).

5. The intelligent road maintenance device according to claim 1, characterized in that, The unmanned vehicle (1) includes an unmanned vehicle body and an electrical box (2), the electrical box (2) being installed on the unmanned vehicle body.

6. The intelligent road maintenance device according to claim 5, characterized in that, A circuit board (18) is fixedly installed on the inner wall of the electrical box (2). A wireless communication module (19) is fixedly installed on one side of the top of the circuit board (18). A data processing and analysis module (20) is fixedly installed in the middle of the top of the circuit board (18). A GPS locator (21) is fixedly installed on the other side of the top of the circuit board (18). The camera (10) and the GPS locator (21) are electrically connected to the wireless communication module (19) through the data processing and analysis module (20).

7. The intelligent road maintenance device according to claim 1, characterized in that, Both the first geared motor (5) and the second geared motor (11) are surrounded by protective covers (12).