A pavement crack detection device

Abstract

The utility model discloses a kind of road surface crack detection devices, it includes: detection device main body, detection device main body includes data collector, the outer surface of detection device main body is fixedly connected with mobile shell, scanning is carried out to road surface crack by the data collector of detection device main body, using high-pressure airflow injection equipment blows the dust around crack, improves the shooting definition of crack;When high-pressure airflow injection equipment blows the dust around crack, by the rotation of bidirectional screw rod, make high-pressure airflow injection equipment from the protection groove stretch out, make the protection shell move and cover data collector in protection shell, protect data collector, reduce the dust that data collector is raised and is contaminated;When data collector is photographed and scanned, again by the rotation of bidirectional screw rod, make high-pressure airflow injection equipment enter protection groove and protect, the protection shell of protection data collector is removed, so that data collector can normally photograph.

Description

Technical Field

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

[0002] With the rapid development of the transportation industry, the condition of road surfaces directly affects the safety and reliability of transportation. Timely and accurate detection of road surface cracks has become a key aspect of road maintenance and management. Traditional methods for detecting road surface cracks commonly involve scanning and photographing them using a data acquisition device. However, in practice, a large amount of dust often adheres to the area around the cracks, severely affecting the image clarity of the data acquisition device. This results in the crack features not being clearly displayed, thus impacting the accuracy and reliability of the detection results. Furthermore, when using high-pressure air jet equipment to disperse dust and improve image clarity, existing detection devices lack effective protection measures for the data acquisition device. The stirred-up dust easily contaminates the data acquisition device lens, not only reducing image quality but also increasing labor and time costs due to frequent cleaning and maintenance. Moreover, when not in use, the high-pressure air jet equipment lacks a proper storage and protection structure, making it susceptible to damage from external environmental factors, affecting its service life and performance. Utility Model Content

[0003] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a road surface crack detection device. The device uses a data acquisition unit to scan road surface cracks, and a high-pressure airflow jet device to disperse dust around the cracks, improving the clarity of the crack images. While the high-pressure airflow jet device disperses the dust around the cracks, the rotation of a bidirectional screw causes the high-pressure airflow jet device to extend from the protective groove, moving the protective shell to cover the data acquisition unit, thus protecting it and reducing dust contamination. When the data acquisition unit is scanning and taking images, the rotation of the bidirectional screw again causes the high-pressure airflow jet device to re-enter the protective groove, removing the protective shell and allowing the data acquisition unit to take images normally.

[0004] This utility model also provides a road surface crack detection device as described above, comprising: a detection device body, the detection device body including a data acquisition unit, a movable housing fixedly connected to the outer surface of the detection device body, a motor fixedly connected to the outer surface of the movable housing, a bidirectional lead screw fixedly connected to the output end of the motor, a movable frame one threadedly connected to one end of the bidirectional lead screw, a protective shell fixedly connected to the outer surface of the movable frame one, the data acquisition unit being located inside the protective shell, a protective groove being provided on the inner wall of the movable housing, a movable frame two threadedly connected to the other end of the bidirectional lead screw, a high-pressure air jetting device fixedly connected to the outer surface of the movable frame two, and the high-pressure air jetting device being located inside the protective groove.

[0005] According to the present invention, a road surface crack detection device is provided, wherein a cover is fixedly connected to the outer surface of the high-pressure air jetting device, the inner side of the cover is in contact with the movable housing, and the cover is tightly fitted to the jetting device to effectively prevent dust and debris from entering the protective groove.

[0006] According to the present invention, a road surface crack detection device is provided, wherein a protective cover is fixedly connected to the outer surface of the movable housing, and the motor is located inside the protective cover to protect the motor and prevent it from being hit by external debris.

[0007] According to the present invention, a road surface crack detection device is provided, wherein the outer surface of the protective cover is provided with an air outlet, and the outer surfaces of the first and second movable frames are slidably connected to the movable shell. The slidable connection enables flexible adjustment of the protective shell and the high-pressure airflow jetting device, which facilitates the operation of the device.

[0008] According to the road surface crack detection device provided by this utility model, the two ends of the bidirectional lead screw are provided with threads of opposite directions. One end of the bidirectional lead screw is rotatably connected to the protective cover. The rotating bidirectional lead screw makes the structure simple and the transmission smooth.

[0009] According to the present invention, a road surface crack detection device is provided with an identification box on the outer surface of the protective cover. The identification box contains an identification plate, which provides clear equipment information, operation instructions or maintenance markings to facilitate quick identification by the operator.

[0010] According to the present invention, a road surface crack detection device is provided, wherein a shielding frame is fixedly connected to the upper surface of the movable housing, and the main body of the detection device is located inside the shielding frame. The shielding frame can block rainwater on rainy days and prevent rainwater from directly contacting the main body of the detection device.

[0011] According to the present invention, a road surface crack detection device is provided with a handle on the outer surface of the protective cover and rollers on the outer surface of the movable housing. The handle design makes the device easier to move and reduces the difficulty of operation.

[0012] Compared with existing technologies, this road crack detection device scans road cracks using a data acquisition unit in the main body of the device. A high-pressure air jet device disperses dust around the cracks, improving the clarity of the crack images. While the high-pressure air jet device disperses the dust, the rotation of a bidirectional screw causes it to extend from a protective groove, moving the protective shell to enclose the data acquisition unit and reduce dust contamination. During scanning and image capture, the rotation of the bidirectional screw again moves the high-pressure air jet device back into the protective groove, removing the protective shell and allowing the data acquisition unit to capture images normally. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0014] Figure 1 This is an overall structural diagram of the road surface crack detection device of this utility model;

[0015] Figure 2 This is a schematic diagram of the connection of the movable housing of the road surface crack detection device of this utility model;

[0016] Figure 3 This is a schematic diagram of the protective shell connection for the road surface crack detection device of this utility model;

[0017] Figure 4 This is a schematic diagram of the protective groove connection of the road surface crack detection device of this utility model;

[0018] Figure 5 This is a schematic diagram of the connection of the movable frame of the road surface crack detection device of this utility model.

[0019] Legend:

[0020] 1. Detection device main body; 101. Data acquisition unit; 2. Moving housing; 3. Motor; 4. Two-way lead screw; 5. Moving frame one; 6. Protective shell; 7. Protective groove; 8. Moving frame two; 9. High-pressure air jet equipment; 10. Cover; 11. Protective cover; 12. Identification box; 13. Handle; 14. Shielding frame. Detailed Implementation

[0021] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0022] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 This utility model discloses a road surface crack detection device, comprising: a detection device body 1, which automatically detects crack types (transverse, longitudinal, mesh, etc.), width, length, and depth, generates crack distribution maps, and statistically analyzes the density of defects. It consists of a data acquisition unit, a lighting system, and a data processing unit. The data acquisition unit acquires crack data, performs grayscale conversion, Gaussian filtering for noise reduction, adaptive threshold segmentation, and uses Canny edge detection or a U-Net deep learning model to identify crack contours. Width is calculated through pixel calibration, and the type is classified based on morphological operations. Finally, an evaluation is performed. The above is a conventional structure. The detection device body 1 includes a data acquisition head 101, responsible for efficiently and accurately acquiring road surface images and environmental data, providing raw input for subsequent crack identification and analysis. It consists of a laser scanner, a high-resolution industrial camera, and a positioning system. GPS is used for positioning, the camera takes pictures at fixed intervals or times, a laser emitter projects striped light onto the road surface, the camera captures deformed stripes, and the crack depth is calculated. The original data is stored in SSD or cloud for subsequent AI analysis. As is the existing structure, the outer surface of the main body 1 of the detection device is fixedly connected to a movable shell 2. The outer surface of the movable shell 2 is fixedly connected to a motor 3. The output end of the motor 3 is fixedly connected to a bidirectional lead screw 4. One end of the bidirectional lead screw 4 is threadedly connected to a movable frame 5. The outer surface of the movable frame 5 is fixedly connected to a protective shell 6. The data acquisition device 101 is located inside the protective shell 6. The outer surface of the movable shell 2 is fixedly connected to a protective cover 11. The motor 3 is located inside the protective cover 11. The outer surface of the protective cover 11 is provided with an air outlet. The outer surfaces of the movable frame 5 and the movable frame 8 are slidably connected to the movable shell 2. The outer surface of the protective cover 11 is provided with an identification box 12. The inside of the identification box 12 is filled with an identification sign. The upper surface of the movable shell 2 is fixedly connected to a shielding frame 14. The main body 1 of the detection device is located inside the shielding frame 14. The outer surface of the protective cover 11 is provided with a handle 13. The outer surface of the movable shell 2 is provided with rollers.

[0023] Specifically, the data acquisition unit 101 of the main body 1 of the detection device scans the road surface cracks, and the high-pressure air jet device 9 is used to blow away the dust around the cracks to improve the clarity of the crack images. When the high-pressure air jet device 9 blows away the dust around the cracks, the rotation of the bidirectional screw 4 on the outside of the movable housing 2 causes the movable frame 2 8, which is threaded to the bidirectional screw 4, to extend out of the protective groove 7 with the high-pressure air jet device 9. The movable frame 5, which is threaded to the bidirectional screw 4, moves with the protective shell 6 to cover the data acquisition unit 101 inside the protective shell 6, thereby protecting the data acquisition unit 101 and reducing the dust contamination of the data acquisition unit 101.

[0024] Reference Figure 2 , Figure 3 , Figure 4 and Figure 5 The inner wall of the movable housing 2 is provided with a protective groove 7. The other end of the bidirectional screw 4 is threadedly connected to the movable frame 8. The outer surface of the movable frame 8 is fixedly connected with a high-pressure air jet device 9, which is used to clean road debris and impurities, and facilitate clear imaging of cracks. It mainly consists of a high-pressure air source, a nozzle and a pressure control device. The high-pressure airflow is generated by the compressed air source. After adjustment and control, it is ejected from the nozzle at high speed. The high-pressure airflow can efficiently remove surface debris. The high-pressure air jet device 9 is located inside the protective groove 7. The outer surface of the high-pressure air jet device 9 is fixedly connected with a cover 10. The inner side of the cover 10 is in contact with the movable housing 2. The two ends of the bidirectional screw 4 are provided with threads of opposite directions. One end of the bidirectional screw 4 is rotatably connected to the protective cover 11.

[0025] Specifically, when the data acquisition unit 101 is performing a scanning operation, the rotation of the bidirectional lead screw 4 causes the movable frame 2 8, which is threadedly connected to the bidirectional lead screw 4, to carry the high-pressure air jet device 9 into the protective groove 7 for protection. At the same time, the protective shell 6 protecting the data acquisition unit 101 is moved away by the movable frame 5, allowing the data acquisition unit 101 to perform normal scanning.

[0026] Working principle: During use, the data acquisition unit 101 of the main body 1 of the detection device scans the road surface cracks. The high-pressure air jet device 9 blows away the dust around the cracks, improving the clarity of the crack images. When the high-pressure air jet device 9 blows away the dust around the cracks, the rotation of the bidirectional screw 4 on the outside of the movable housing 2 causes the second movable frame 8, which is threaded to the bidirectional screw 4, to extend from the protective groove 7 with the high-pressure air jet device 9. The first movable frame 5, which is threaded to the bidirectional screw 4, moves with the protective shell 6 to cover the data acquisition unit 101 inside the protective shell 6, protecting the data acquisition unit 101 and reducing the amount of dust that may accumulate on it. When the data acquisition unit 101 is scanning, the rotation of the bidirectional screw 4 causes the second movable frame 8, which is threaded to the bidirectional screw 4, to enter the protective groove 7 with the high-pressure air jet device 9 for protection. At the same time, the protective shell 6 protecting the data acquisition unit 101 is moved away by the first movable frame 5, allowing the data acquisition unit 101 to take images normally.

[0027] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A road surface crack detection device, characterized in that, include: The detection device body (1) includes a data acquisition unit (101). A movable housing (2) is fixedly connected to the outer surface of the detection device body (1). A motor (3) is fixedly connected to the outer surface of the movable housing (2). A bidirectional lead screw (4) is fixedly connected to the output end of the motor (3). A movable frame (5) is threaded to one end of the bidirectional lead screw (4). A protective shell (6) is fixedly connected to the outer surface of the movable frame (5). The data acquisition unit (101) is located inside the protective shell (6). A protective groove (7) is provided on the inner wall of the movable housing (2). A movable frame (8) is threaded to the other end of the bidirectional lead screw (4). A high-pressure air jet device (9) is fixedly connected to the outer surface of the movable frame (8). The high-pressure air jet device (9) is located inside the protective groove (7).

2. The road surface crack detection device according to claim 1, characterized in that, The outer surface of the high-pressure air jet device (9) is fixedly connected to a cover (10), and the inner side of the cover (10) is in contact with the movable housing (2).

3. The road surface crack detection device according to claim 1, characterized in that, The outer surface of the movable housing (2) is fixedly connected to a protective cover (11), and the motor (3) is located inside the protective cover (11).

4. A road surface crack detection device according to claim 3, characterized in that, The outer surface of the protective cover (11) is provided with an air outlet, and the outer surfaces of the first movable frame (5) and the second movable frame (8) are slidably connected to the movable housing (2).

5. A road surface crack detection device according to claim 1, characterized in that, The two ends of the bidirectional lead screw (4) are provided with threads of opposite directions, and one end of the bidirectional lead screw (4) is rotatably connected to the protective cover (11).

6. A road surface crack detection device according to claim 3, characterized in that, The outer surface of the protective cover (11) is provided with an identification box (12), and an identification sign is placed inside the identification box (12).

7. A road surface crack detection device according to claim 1, characterized in that, A shielding frame (14) is fixedly connected to the upper surface of the movable housing (2), and the main body (1) of the detection device is located inside the shielding frame (14).

8. A road surface crack detection device according to claim 3, characterized in that, The outer surface of the protective cover (11) is provided with a handle (13), and the outer surface of the movable housing (2) is provided with rollers.

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