Road and bridge asphalt pavement crack detection device

The mobile frame structure driven by a screw slide and lifting motor enables efficient alignment and automatic cleaning of the road and bridge asphalt pavement crack detection device, solving the problem of low detection efficiency in existing technologies and improving detection accuracy and continuity.

CN223921947UActive Publication Date: 2026-02-17CHANTONG HIGHWAY ENG CO LTD
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Patent Information

Application Number
CN202520512836.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-21
Publication Date
2026-02-17
Estimated Expiration
2035-03-21

AI Technical Summary

Technical Problem

In existing technologies, cracks are generally not perfectly straight, which requires frequent movement of the fixed stage to align with the detection probe during the detection process, thus affecting detection efficiency.

Method used

The system uses a lead screw slide to move the moving plate and the detection components synchronously, achieving alignment without frequent movement of the fixed stage. The height of the detection probe is adjusted by a lifting motor, and the probe is automatically cleaned by a cleaning component, ensuring detection accuracy and efficiency.

Benefits of technology

It enables alignment and detection without frequent movement of the fixed stage when the crack direction changes, improving detection efficiency. The automatic cleaning component keeps the probe clean, ensuring detection accuracy and continuity.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223921947U_ABST
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Abstract

The utility model relates to the technical field of crack detection, in particular to a road bridge asphalt pavement crack detection device which comprises a fixed table, a movable frame, a detection assembly, a lead screw sliding table, a movable plate, a water tank, a cleaning assembly and two sliding rails, a rectangular groove is formed in the fixed table, and four universal wheels are distributed at the bottom of the fixed table in a rectangular shape. The two sliding rails are symmetrically arranged at the top of the fixed table, the moving frame is slidably installed on the two sliding rails, the detection assembly is installed on the moving frame, the lead screw sliding table is horizontally arranged at the top of the fixed table, the moving plate is installed at the moving end of the lead screw sliding table, and the moving plate is connected with the outer wall of the bottom end of the moving frame. The water tank is installed on the top of the fixing table, the cleaning assembly is installed at the bottom of the fixing table, the fixing table does not need to be moved frequently to conduct alignment operation, and the efficiency of detection work cannot be affected.
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Description

Technical Field

[0001] This utility model relates to the field of crack detection technology, specifically a crack detection device for asphalt pavement of roads and bridges. Background Technology

[0002] In many parts of my country, after highways are built and opened to traffic, cracks appear on the road surface during use due to factors such as vehicle load, temperature, quality of asphalt mixture, and construction quality. Road surface cracks are the most common road defects. If they are not treated in time, they can seriously affect driving safety and even lead to traffic paralysis.

[0003] Chinese utility model patent CN220183763U discloses a device for detecting cracks in asphalt pavement of roads and bridges. The device includes a fixed platform, a sliding block longitudinally slidably mounted in the middle of the platform, and the sliding block penetrating the platform. A storage compartment is located at the bottom of the sliding block, and a transparent plate is fixedly mounted at the bottom opening of the storage compartment, sealing the compartment. A detection probe is fixedly mounted inside the storage compartment. Universal wheels are installed at the four corners of the bottom of the fixed platform. A toothed plate is fixedly mounted on the top of the sliding block, and two parallel fixed blocks are fixedly mounted on the top of the fixed platform. This utility model, through the toothed plate, connecting gear, first motor, rotating shaft, and sliding block, ensures the distance between the detection probe and the crack, improving the detection accuracy and quality of cracks in low-lying areas. The fixed plate, threaded shaft, detection probe, transparent plate, sliding frame, and wiping part ensure the clarity of the detection probe's images.

[0004] However, the above-mentioned patent still has the following shortcomings in actual use: the fixed platform of the patent moves along the length of the crack, and the detection probe detects the crack. Since the crack is generally not completely straight, the fixed platform needs to be moved frequently during the detection process to align the detection probe with the crack, which affects the efficiency of the detection work. Utility Model Content

[0005] The purpose of this invention is to provide a road and bridge asphalt pavement crack detection device to solve the problem mentioned in the background art that, since cracks are generally not perfectly straight, the detection process requires frequent movement of the fixed platform to align the detection probe with the crack, which affects the efficiency of the detection work.

[0006] The technical solution of this utility model is:

[0007] A road and bridge asphalt pavement crack detection device includes a fixed platform, a movable frame, a detection component, a screw slide, a movable plate, a water tank, a cleaning component, and two slide rails. The fixed platform has a rectangular groove, and four casters are rectangularly distributed on its bottom. The two slide rails are symmetrically arranged on the top of the fixed platform. The movable frame is slidably mounted on the two slide rails. The detection component is mounted on the movable frame, and its bottom end extends through the rectangular groove to the bottom of the fixed platform. The screw slide is horizontally positioned on the top of the fixed platform. The movable plate is mounted on the movable end of the screw slide and connected to the bottom outer wall of the movable frame. The water tank is mounted on the top of the fixed platform, and the cleaning component is mounted on the bottom of the fixed platform and communicates with the water tank.

[0008] Furthermore, the detection assembly includes a lifting frame, a lifting plate, a detection probe, a lifting rack, a lifting seat, a lifting shaft, a lifting gear, and a lifting motor. The lifting frame is slidably mounted on the top of the movable frame, the lifting plate is horizontally positioned at the bottom of the lifting frame, the detection probe is mounted at the bottom of the lifting plate, the lifting rack is vertically positioned on the lifting frame, the lifting seat is mounted on the top of the movable frame, the lifting shaft is rotatably mounted inside the lifting seat, the lifting gear is mounted on the lifting shaft and meshes with the lifting rack, and the lifting motor is horizontally positioned on the outer wall of the lifting seat, with the output shaft of the lifting motor connected to the lifting shaft.

[0009] Furthermore, the cleaning assembly includes a sponge cleaning block, a water spray plate, a water supply pipe, a valve, and two electric push rods. The two electric push rods are symmetrically arranged at the bottom of the fixed platform. The sponge cleaning block is installed on the output ends of the two electric push rods. The water spray plate is installed at the bottom of the fixed platform, and the bottom of the water spray plate is provided with multiple water spray heads. The two ends of the water supply pipe are respectively connected to the water spray plate and the water tank. The valve is installed on the water supply pipe.

[0010] Furthermore, a water filling pipe is provided on the top of the water tank.

[0011] Furthermore, a liquid level observation plate is provided on the outer wall of the water tank.

[0012] Furthermore, a pusher is installed on the top of the fixed platform, and a pusher grip is provided at the top of the pusher.

[0013] This utility model provides an improved asphalt pavement crack detection device for roads and bridges, which has the following improvements and advantages compared with the prior art:

[0014] Firstly, when the direction of the crack changes, the screw slide moves the moving plate, which in turn moves the moving frame and the detection component synchronously until the detection component is aligned with the crack. This eliminates the need for frequent repositioning of the fixed platform for alignment, thus not affecting the efficiency of the detection work.

[0015] Secondly, this utility model allows water in the tank to enter the spray plate through the water supply pipe when the valve is opened. Then, the water in the spray plate is sprayed onto the surface of the sponge cleaning block through multiple spray nozzles. Next, two electric push rods work to move the sponge cleaning block, which wipes away the dust on the bottom of the detection probe. The dust is cleaned up, ensuring that the detection probe works normally. Attached Figure Description

[0016] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 2 ;

[0019] Figure 3 This is a partial three-dimensional structural diagram of the present invention. Figure 1 ;

[0020] Figure 4 This is a partial three-dimensional structural diagram of the present invention. Figure 2 ;

[0021] Figure 5 This is a three-dimensional structural diagram of the water tank of this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] Fixed platform 1, rectangular groove 11, casters 12, movable frame 2, detection assembly 3, lifting frame 31, lifting plate 32, detection probe 33, lifting rack 34, lifting seat 35, lifting shaft 36, lifting gear 37, lifting motor 38, lead screw slide 4, movable plate 5, water tank 6, water filling pipe 61, liquid level observation plate 62, cleaning assembly 7, sponge cleaning block 71, spray plate 72, water supply pipe 73, valve 74, electric push rod 75, spray head 76, slide rail 8, hand push frame 9, handle push frame 91. Detailed Implementation

[0024] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0025] This utility model, through improvements, provides a road and bridge asphalt pavement crack detection device, such as... Figures 1-5 As shown, the system includes a fixed platform 1, a movable frame 2, a detection component 3, a lead screw slide 4, a movable plate 5, a water tank 6, a cleaning component 7, and two slide rails 8. The fixed platform 1 has a rectangular groove 11. Four casters 12 are rectangularly distributed at the bottom of the fixed platform 1. The two slide rails 8 are symmetrically arranged on the top of the fixed platform 1. The movable frame 2 is slidably mounted on the two slide rails 8. The detection component 3 is mounted on the movable frame 2, and its bottom end extends through the rectangular groove 11 to below the bottom of the fixed platform 1. The lead screw slide 4 is horizontally positioned on the top of the fixed platform 1. The movable plate 5 is mounted on the movable end of the lead screw slide 4 and is connected to the bottom outer wall of the movable frame 2. The water tank 6 is mounted on... The cleaning component 7 is installed on the top of the fixed platform 1 and on the bottom of the fixed platform 1, and is connected to the water tank 6. By pushing the fixed platform 1, the four casters 12 drive the fixed platform 1 to move along the length of the crack on the ground. At the same time, the detection component 3 works to detect the crack. When the crack direction changes, the screw slide 4 works to drive the moving plate 5 to move. The moving plate 5 drives the moving frame 2 and the detection component 3 to move synchronously until the detection component 3 moves to align with the crack. There is no need to frequently move the fixed platform 1 for alignment, which will not affect the efficiency of the detection work. The cleaning component 7 works periodically to clean the detection component 3 to ensure that the detection component 3 works normally.

[0026] Specifically, the detection component 3 includes a lifting frame 31, a lifting plate 32, a detection probe 33, a lifting rack 34, a lifting seat 35, a lifting shaft 36, a lifting gear 37, and a lifting motor 38. The lifting frame 31 is slidably mounted on the top of the movable frame 2. The lifting plate 32 is horizontally arranged at the bottom of the lifting frame 31. The detection probe 33 is installed at the bottom of the lifting plate 32. The lifting rack 34 is vertically arranged on the lifting frame 31. The lifting seat 35 is installed on the top of the movable frame 2. The lifting shaft 36 is rotatably mounted inside the lifting seat 35. The lifting gear 37 is mounted on the lifting shaft 36 and meshes with the lifting rack 34. The lifting motor 38 is horizontally mounted on the outer wall of the lifting seat 35, and the output shaft of the lifting motor 38 is connected to the lifting shaft 36. The lifting motor 38 drives the lifting shaft 36 and the lifting gear 37 to rotate. The lifting gear 37 uses the lifting rack 34 to drive the lifting frame 31 and the lifting plate 32 to adjust their height. The lifting plate 32 drives the detection probe 33 to adjust its height to a suitable level, so that the detection probe 33 can better detect cracks.

[0027] Specifically, the cleaning component 7 includes a sponge cleaning block 71, a water spray plate 72, a water supply pipe 73, a valve 74, and two electric push rods 75. The two electric push rods 75 are symmetrically arranged at the bottom of the fixed platform 1. The sponge cleaning block 71 is installed on the output ends of the two electric push rods 75. The water spray plate 72 is installed at the bottom of the fixed platform 1, and the bottom of the water spray plate 72 is provided with multiple water spray heads 76. The two ends of the water supply pipe 73 are respectively connected to the water spray plate 72 and the water tank 6. The valve 74 is installed on the water supply pipe 73. When the valve 74 is opened, the water in the water tank 6 enters the water spray plate 72 through the water supply pipe 73. Then, the water in the water spray plate 72 is sprayed onto the surface of the sponge cleaning block 71 through the multiple water spray heads 76. Then, the two electric push rods 75 work to drive the sponge cleaning block 71 to move. The movement of the sponge cleaning block 71 wipes away the dust on the bottom of the detection probe 33. The dust is cleaned up, ensuring that the detection probe 33 works normally.

[0028] Specifically, the top of the water tank 6 is provided with a water filling pipe 61; the water filling pipe 61 facilitates the addition of water to the water tank 6 at any time.

[0029] Specifically, a liquid level observation plate 62 is provided on the outer wall of the water tank 6; the liquid level observation plate 62 facilitates observation of the liquid level height of the water in the water tank 6.

[0030] Specifically, a pusher 9 is installed on the top of the fixed platform 1, and a pusher 91 is provided at the top of the pusher 9; the pusher 91 is used to push the pusher 9 and the fixed platform 1 to move.

[0031] 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. A road bridge asphalt pavement crack detection device, characterized in that: The utility model provides a kind of cleaning device for glass surface, including fixed platform (1), mobile frame (2), detection component (3), screw slide (4), moving plate (5), water tank (6), cleaning component (7) and two slide rails (8), rectangular slot (11) is set in the fixed platform (1), the bottom of the fixed platform (1) is rectangularly distributed with four universal wheels (12), two the slide rails (8) are symmetrically arranged on the top of fixed platform (1), the mobile frame (2) is slidably installed on two slide rails (8), the detection component (3) is installed on mobile frame (2), and the bottom end of detection component (3) extends below the bottom of fixed platform (1) by passing through rectangular slot (11), the screw slide (4) is horizontally arranged on the top of fixed platform (1), the moving plate (5) is installed on the mobile end of screw slide (4), and the moving plate (5) is connected with the bottom end outer wall of mobile frame (2), the water tank (6) is installed on the top of fixed platform (1), the cleaning component (7) is installed on the bottom of fixed platform (1), and the cleaning component (7) is communicated with water tank (6).

2. The road bridge asphalt pavement crack detection device according to claim 1, characterized in that: The detection component (3) includes lifting frame (31), lifting plate (32), detection probe (33), lifting rack (34), lifting seat (35), lifting shaft (36), lifting gear (37) and lifting motor (38), the lifting frame (31) is slidably installed on the top end of mobile frame (2), the lifting plate (32) is horizontally arranged on the bottom of lifting frame (31), the detection probe (33) is installed on the bottom of lifting plate (32), the lifting rack (34) is vertically arranged on lifting frame (31), the lifting seat (35) is installed on the top of mobile frame (2), the lifting shaft (36) is rotatably installed in lifting seat (35), the lifting gear (37) is installed on lifting shaft (36), and the lifting gear (37) is engaged with lifting rack (34), the lifting motor (38) is horizontally arranged on the outer wall of lifting seat (35), and the output shaft of lifting motor (38) is connected with lifting shaft (36).

3. The road bridge asphalt pavement crack detection device according to claim 1, characterized in that: The cleaning component (7) includes sponge cleaning block (71), water spraying plate (72), water delivery pipe (73), valve (74) and two electric push rods (75), two the electric push rods (75) are symmetrically arranged on the bottom of fixed platform (1), the sponge cleaning block (71) is installed on the output end of two electric push rods (75), the water spraying plate (72) is installed on the bottom of fixed platform (1), the bottom of water spraying plate (72) is provided with a plurality of water spraying heads (76), the two ends of water delivery pipe (73) are respectively communicated with water spraying plate (72) and water tank (6), the valve (74) is installed on water delivery pipe (73).

4. The road bridge asphalt pavement crack detection device according to claim 1, characterized in that: The top of the water tank (6) is provided with a water filling pipe (61).

5. The road bridge asphalt pavement crack detection device according to claim 1, characterized in that: The outer wall of the water tank (6) is provided with a liquid level observation plate (62).

6. The road bridge asphalt pavement crack detection device according to claim 1, characterized in that: The top of the fixed platform (1) is provided with a hand push frame (9), and the top of the hand push frame (9) is provided with a hand push frame (91).

Citation Information

Patent Citations

  • Road and bridge asphalt pavement crack detection device

    CN220183763U