A pavement distress detection device

Abstract

The utility model provides a kind of road surface disease detection device, including detection car, camera for being arranged on detection car and being used to shoot lane marking line image, and three-dimensional laser imaging component for being arranged in detection car rear side and being used to detect disease, pressure bucket containing paint is further equipped in detection car inside, spray head connected to pressure bucket by pipeline is equipped on detection car below three-dimensional laser imaging component, spray head is connected to pressure bucket by pipeline, and solenoid valve is equipped on the pipeline of connection, when three-dimensional laser imaging component detects disease, system control solenoid valve opens pipeline, paint in pressure bucket enters pipeline and is sprayed to corresponding position by spray head, so as to mark disease position, staff only need to find disease position by marking point, so that detection car does not need to wait staff to come over to handle in situ, can continue to work and find next disease point, to improve the work efficiency of detection car.

Description

Technical Field

[0001] This utility model relates to the field of road inspection technology, and in particular to a road surface defect detection device. Background Technology

[0002] Asphalt pavement, with its advantages of high surface smoothness, seamlessness, comfortable driving experience, short construction period, and convenient maintenance, has become an ideal choice for road surface materials. However, in practical applications, asphalt pavement also faces various problems, among which cracking is particularly common. The appearance of cracks not only damages the structural integrity of the pavement but also significantly reduces its performance, posing a threat to driving safety and comfort.

[0003] In the existing technical field, utility model patent CN218937301U proposes an automatic road surface defect detection device and system. This patent innovatively incorporates a camera for capturing lane markings and a three-dimensional laser imaging device into the detection device, aiming to achieve accurate identification and detection of road surface defects. However, regrettably, this detection device lacks a timely and effective handling mechanism after detecting road surface defects, and can only passively wait for personnel to arrive on-site for treatment. This limitation undoubtedly affects the overall working efficiency of the detection device. Utility Model Content

[0004] The purpose of this invention is to provide a road surface defect detection device to solve the technical problem that automatic road surface defect detection devices can only passively wait for staff to come and deal with the defects after identifying them, thus affecting the working efficiency of the automatic road surface defect detection devices.

[0005] To solve the above-mentioned technical problems, this utility model provides a road surface defect detection device, including a detection vehicle, a camera installed on the detection vehicle for capturing images of lane markings, and a three-dimensional laser imaging component installed at the rear of the detection vehicle for detecting defects. Inside the detection vehicle, there is also a pressure tank for containing paint. Below the three-dimensional laser imaging component, on the detection vehicle, there is a nozzle connected to the pressure tank via a pipe, and a solenoid valve for operating the nozzle is installed on the pipe.

[0006] In a preferred embodiment, a notch is provided on the side wall of the inspection vehicle below the three-dimensional laser imaging component, and a moving component is also provided inside the inspection vehicle. A moving rod that can extend out of the notch is provided on the moving component, and the nozzle is located on one side of the moving rod.

[0007] In a preferred embodiment, a communicating channel is provided inside the movable rod, the nozzle is located at one end of the channel, and a pipe joint for connecting to a pipeline is provided at the end of the channel away from the nozzle.

[0008] In a preferred embodiment, a cover plate that can cover the notch is hinged above the notch, a flat portion is provided above the moving rod, and the nozzle is located on the side of the moving rod away from the flat portion.

[0009] In a preferred embodiment, the moving component includes a first moving mechanism and a second moving mechanism disposed above the first moving mechanism, wherein the movement directions of the first moving mechanism and the second moving mechanism are perpendicular to each other. Both the first moving mechanism and the second moving mechanism include a base plate, a bearing seat disposed on the base plate, a lead screw disposed between the two bearing seats, a motor disposed at one end of the bearing seat and connected to the lead screw, a lead screw nut disposed on the lead screw, and a connecting block disposed on the lead screw nut. The base plate of the second moving mechanism is mounted on the connecting block of the first moving mechanism, and the moving rod is mounted on the connecting block of the second moving mechanism.

[0010] In a preferred embodiment, a lifting mechanism for raising the height of the three-dimensional laser imaging component is also provided between the three-dimensional laser imaging component and the inspection vehicle.

[0011] In a preferred embodiment, the lifting mechanism includes an electric cylinder and a guide assembly parallel to the direction of movement of the electric cylinder.

[0012] The beneficial effects of this invention are as follows: When the 3D laser imaging component detects a defect, the system controls the solenoid valve to open the pipeline, and the paint in the pressure tank enters the pipeline and is sprayed onto the corresponding position through the nozzle. This marks the defect location, and the staff only needs to find the defect location through the marked point. This way, the inspection vehicle does not need to wait for the staff to come and handle it, and can continue to work to find the next defect point, thereby improving the work efficiency of the inspection vehicle. Furthermore, by setting a lifting mechanism between the 3D laser imaging component and the inspection vehicle, the height of the 3D laser imaging component can be raised when it is necessary to mark the defect location, preventing paint from splashing onto the surface of the 3D laser imaging component. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a front view structural diagram of an embodiment of the present utility model; Figure 2 This is a front view of the internal installation structure of the testing vehicle according to an embodiment of this utility model; Figure 3 This is a top view of the internal installation structure of the testing vehicle according to an embodiment of this utility model; Figure 4 This is a diagram of the installation structure of the movable rod according to an embodiment of this utility model; Figure 5 This is a structural diagram of the first moving mechanism according to an embodiment of the present utility model.

[0014] Reference numerals: 11. Inspection vehicle; 111. Notch; 12. Camera; 13. 3D laser imaging component; 14. Pressure tank; 15. Nozzle; 16. Pipe; 17. Solenoid valve; 18. Moving rod; 181. Channel; 182. Flat section; 19. Pipe joint; 21. Cover plate; 3. First moving mechanism; 3. Base plate; 32. Bearing seat; 33. Lead screw; 34. Motor; 35. Nut; 36. Connecting block; 4. Second moving mechanism; Lifting mechanism; 51. Electric cylinder; 52. Guide assembly. Detailed Implementation

[0015] In the description of this invention, it should be understood that if terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0016] Example 1: Please see Figure 1-5 As shown, this application provides a technical solution: a road surface defect detection device, including a detection vehicle 11, a camera 12 mounted on the detection vehicle 11 for capturing images of lane markings, and a three-dimensional laser imaging component 13 mounted on the rear of the detection vehicle 11 for detecting defects. Inside the detection vehicle 11, there is also a pressure tank 14 for containing paint. Below the three-dimensional laser imaging component 13, on the detection vehicle 11, there is a nozzle 15 connected to the pressure tank 14 via a pipe 16, and a solenoid valve 17 for operating the nozzle 15 is mounted on the pipe 16. The pressure source for the pressure tank 14 can be external air pressure.

[0017] Using the above structure, when the 3D laser imaging component 13 detects a defect, the system controls the solenoid valve 17 to open the pipe 16. The paint in the pressure tank 14 enters the pipe 16 and is sprayed onto the defect location through the nozzle 15. The sprayed paint thus serves as a marker for the defect location. A brightly colored paint can be selected to facilitate the worker's location of the defect. This eliminates the need for the inspection vehicle 11 to wait for workers to arrive; it can continue working to find the next defect location and mark it. Workers only need to locate the defect based on the marked location to treat it, thus improving the work efficiency of the inspection vehicle 11.

[0018] In a preferred embodiment, a notch 111 is provided on the side wall of the inspection vehicle 11 below the three-dimensional laser imaging component 13, and a moving component is also provided inside the inspection vehicle 11. A moving rod 18 that can extend out of the notch 111 is provided on the moving component, and the nozzle 15 is provided on one side of the moving rod 18.

[0019] With the above structure, when the nozzle 15 needs to spray paint, the moving component drives the moving rod 18 to extend out of the notch 111. At other times, the moving component drives the moving rod 18 to stay inside the inspection vehicle 11. In this way, when the three-dimensional laser imaging component 13 is inspecting, the nozzle 15 is not on the light path of the three-dimensional laser imaging component 13, so it does not affect the inspection of the three-dimensional laser imaging component 13.

[0020] In a preferred embodiment, a communicating channel 181 is provided inside the moving rod 18, the nozzle 15 is located at one end of the channel 181, and a pipe joint 19 for connecting the pipe 16 is provided at the end of the channel 181 away from the nozzle 15.

[0021] With the above structure, paint can enter the nozzle 15 from the channel 16 inside the moving rod 18, so there is no need to set up a corresponding pipeline to connect the nozzle 15.

[0022] In a preferred embodiment, a cover plate 21 that can cover the notch 111 is hinged above the notch 111, a flat portion 182 is provided above the moving rod 18, and the nozzle 15 is provided on the side of the moving rod 18 away from the flat portion 182.

[0023] With the above structure, when the moving rod 18 is inside the inspection vehicle 11, the cover plate 21 can flip over to cover the notch 111 under its own weight. When the moving rod 18 extends, the front end of the moving rod 18 can press against one side of the cover plate 21, causing the cover plate 21 to flip upward. During the extension of the moving rod 18, the front edge of the cover plate 21 will scrape against the flat part 182 of the moving rod 18. The flat part 182 is provided to reduce the resistance when the cover plate 21 contacts the top of the moving rod 18 when the moving rod 18 moves back and forth. The flat part 182 can be a relatively smooth plane.

[0024] In a preferred embodiment, the moving component includes a first moving mechanism 3 and a second moving mechanism 4 disposed above the first moving mechanism 3, wherein the movement directions of the first moving mechanism 3 and the second moving mechanism 4 are perpendicular to each other. Both the first moving mechanism 3 and the second moving mechanism 4 include a base plate 31, a bearing seat 32 disposed on the base plate 31, a lead screw 33 disposed between the two bearing seats 32, a motor 34 disposed at one end of the bearing seat 32 and connected to the lead screw 33, a lead screw nut 35 disposed on the lead screw 33, and a connecting block 36 disposed on the lead screw nut 35. The base plate 31 of the second moving mechanism 4 is mounted on the connecting block 36 of the first moving mechanism 3, and the moving rod 18 is mounted on the connecting block 36 of the second moving mechanism 4.

[0025] With the above structure, when the control motor 34 is working, the motor 34 drives the lead screw 33 to rotate, and the lead screw 33 drives the lead nut 35 and the connecting block 36 on the lead nut 35 to move linearly. In this way, the first moving mechanism 3 can drive the second moving mechanism 4 to move linearly, thereby causing the moving rod 18 to extend out of the notch 111. The second moving mechanism 4 can then drive the moving rod 18 to move linearly, thereby causing the moving rod 18 to move along the length of the notch 111. Through the movement of the first moving mechanism 3 and the second moving mechanism 4, the spray head 15 can spray paint onto the corresponding defective area.

[0026] Example 2: Further explanation in conjunction with Example 1; This embodiment is a further optimized design based on Embodiment 1. Repeated content will not be described here; only the differences from Embodiment 1 will be described. These differences are as follows: In a preferred embodiment, a lifting mechanism for raising the height of the three-dimensional laser imaging component 13 is further provided between the three-dimensional laser imaging component 13 and the inspection vehicle 11. The lifting mechanism includes an electric cylinder 51 and a guide component 52 parallel to the direction of movement of the electric cylinder 51.

[0027] The electric cylinder 51 is a known product, and the structure of the electric cylinder 51 can be similar to that of the first moving mechanism. The guide component 52 includes a guide rail mounted on the inspection vehicle and a slider mounted on the three-dimensional laser imaging component and matched with the guide rail.

[0028] With the above structure, when the inspection vehicle 11 detects a defect that needs to be painted, the electric cylinder 51 can be controlled to drive the three-dimensional laser imaging component 13 to be raised a certain distance along the guide rail. This can prevent paint from splashing onto the surface of the three-dimensional laser imaging component 13 during painting, thus affecting the detection of the three-dimensional laser imaging component 13.

[0029] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A pavement defect detection device, characterized in that: The system includes a testing vehicle (11), a camera (12) mounted on the testing vehicle (11) for capturing images of lane markings, and a three-dimensional laser imaging assembly (13) mounted on the rear side of the testing vehicle (11) for detecting defects. Inside the testing vehicle (11) is a pressure tank (14) for holding paint. Below the three-dimensional laser imaging assembly (13) on the testing vehicle (11) is a nozzle (15) connected to the pressure tank (14) via a pipe (16), and a solenoid valve (17) for operating the nozzle (15) is mounted on the pipe (16).

2. The pavement defect detection device according to claim 1, characterized in that: A notch (111) is provided on the side wall of the inspection vehicle (11) below the three-dimensional laser imaging component (13). A moving component is also provided inside the inspection vehicle (11). A moving rod (18) that can extend out of the notch (111) is provided on the moving component. The nozzle (15) is located on one side of the moving rod (18).

3. The pavement defect detection device according to claim 2, characterized in that: A connecting channel (181) is provided inside the moving rod (18), and the nozzle (15) is located at one end of the channel (181). A pipe joint (19) for connecting the pipe (16) is provided at the end of the channel (181) away from the nozzle (15).

4. The pavement defect detection device according to claim 2, characterized in that: A cover plate (21) that can cover the notch (111) is hinged above the notch (111), and a flat part (182) is provided above the moving rod (18), and the nozzle (15) is provided on the side of the moving rod (18) away from the flat part (182).

5. A pavement defect detection device according to claim 2, characterized in that: The moving component includes a first moving mechanism (3) and a second moving mechanism (4) disposed above the first moving mechanism (3), wherein the movement directions of the first moving mechanism (3) and the second moving mechanism (4) are perpendicular to each other. Both the first moving mechanism (3) and the second moving mechanism (4) include a base plate (31), a bearing seat (32) disposed on the base plate (31), a lead screw (33) disposed between the two bearing seats (32), a motor (34) disposed at one end of the bearing seat (32) and connected to the lead screw (33), a lead screw nut (35) disposed on the lead screw (33), and a connecting block (36) disposed on the lead screw nut (35). The base plate (31) of the second moving mechanism (4) is mounted on the connecting block (36) of the first moving mechanism (3), and the moving rod (18) is mounted on the connecting block (36) of the second moving mechanism (4).

6. The pavement defect detection device according to claim 1, characterized in that: A lifting mechanism for raising the height of the three-dimensional laser imaging component (13) is also provided between the three-dimensional laser imaging component (13) and the inspection vehicle (11).

7. A pavement defect detection device according to claim 6, characterized in that: The lifting mechanism includes an electric cylinder (51) and a guide assembly (52) parallel to the direction of movement of the electric cylinder (51).

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