Bridge crack detection device

Abstract

The utility model discloses a bridge crack detection device, which relates to the technical field of bridge detection and comprises a movable box body and double tracks, the top of the movable box body is connected with an upper monitoring device capable of horizontally stretching and retracting, and the bottom of the movable box body is connected with a lower monitoring device capable of horizontally stretching and retracting; a buckle is fixedly connected to the upper middle portion of the movable box body, a pulley is rotatably connected to the upper portion of the buckle, the pulley makes rolling contact with the outer surface of one of the double rails, the buckle is slidably connected with the other one of the double rails, an adjustable balance plate is clamped to the middle of the movable box body, and a lighting device is installed at the front end of the balance plate. According to the utility model, the two tracks are installed on the two sides of the bridge, the detection device is installed on the tracks, the device can move on the tracks, the lower monitoring device detects the external structure of a target, the upper monitoring device detects and records the surface structure of the target, and the first camera and the second camera have a telescopic function. The method can better adapt to different detection targets, and has the characteristics of wide coverage range, easiness in installation, labor saving and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge detection, in particular to a bridge crack detection device. Background Art

[0002] The bridge crack detection device is designed to ensure the safety of bridge structures and provide a basis for later maintenance. In order to prevent bridge safety hazards in advance, relevant functional departments will spend a lot of time and energy every year to maintain and operate the health of the bridge itself to ensure that the bridge can be used normally. However, if the cracks in the bridge are affected by factors such as temperature and become larger and larger, accidents may follow.

[0003] If the traditional manual inspection method is used, there are limitations and inspection blind spots. The inspection range is not comprehensive and detailed enough, traffic is blocked, the operation efficiency is low, the cost is high, and the difficulty is great. In addition, the traditional bridge deformation monitoring is mainly based on geometric leveling, static leveling, tensioning line or optical geometric observation. The deformation data collection of the bridge body is not intuitive and it is difficult to describe the detailed change information. The traditional monitoring method is to determine the safety of the bridge through continuous and regular single-point observation, comparative analysis of multiple observation data, but it is impossible to accurately obtain the overall deformation of the bridge or the deformation at any position. Therefore, there is an urgent need for reasonable, efficient and reliable bridge quality inspection methods to ensure the safety of the bridge during operation.

[0004] The management and maintenance departments usually inspect bridges regularly, mostly using traditional detection methods, relying on the naked eye or auxiliary tools (such as bridge inspection vehicles, drones, etc.) to detect whether the main components of the bridge have cracks, cracks and damage, exposed steel bars and rust, and support hollowing. For special structure bridges (such as cable-stayed bridges, suspension bridges, steel tube concrete arch bridges, etc.) or large-span high-pier bridges, beyond the reach of beam bottom plates, tower columns, cables, inclined cables, tower top lightning rods, etc., conventional detection means and methods have limitations, and the difficulty of operation is very high. There are inspection blind spots, among which local blind spots are inspected manually on site, but the efficiency is low, the difficulty is high, and the risk factor is high.

[0005] Therefore, a bridge crack detection device is proposed. Utility Model Content

[0006] The main purpose of the utility model is to provide a bridge crack detection device, which can effectively solve the problems in the background technology.

[0007] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a bridge crack detection device, including a mobile box and a double track, the top of the mobile box is connected to a horizontally retractable upper monitoring device, and the bottom is connected to a horizontally retractable lower monitoring device; a buckle is fixedly connected to the upper middle part of the mobile box, a pulley is rotatably connected above the buckle, the pulley is in rolling contact with the outer surface of one of the double tracks, the buckle is slidably connected to the other of the double tracks, an adjustable balance board is clamped in the middle of the mobile box, and a lighting device is installed at the front end of the balance board.

[0008] Further preferably, the upper monitoring device includes a first camera, a first connecting plate, a first motor and a first rack, the first camera is fixedly connected to the end of the first connecting plate, the first motor is fixedly connected to the top of the first connecting plate, the first connecting plate is telescopically connected to the side wall of the mobile box, the first rack is fixedly connected to the side wall of the mobile box, and the output end of the first motor is connected to the first rack through a gear set.

[0009] Preferably, the lower monitoring device includes a second camera, a second connecting plate, a second motor, a second rack and a movable plate, the second camera is fixedly connected to the end of the second connecting plate, the second motor is fixedly connected to the top of the second connecting plate, the second connecting plate is telescopically connected to the side wall of the movable plate, the second rack is fixedly connected to the side wall of the movable plate, the output end of the second motor is connected to the second rack through a gear set, and the movable plate is slidably connected to the inner wall of the movable box.

[0010] Preferably, a motor is provided in the movable box, and the rotating shaft of the pulley is connected to the motor via a gear set.

[0011] Preferably, a lighting device is provided above the second camera.

[0012] Preferably, a control circuit board is integrated in the mobile box, and the control circuit board is respectively connected to the motor, the first motor, and the second motor.

[0013] Preferably, the first camera and the second camera are high-resolution digital cameras.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The utility model installs double tracks on both sides of the bridge and installs the detection device on the tracks. The device can move on the tracks. The lower monitoring device detects the external structure of the target, and the upper monitoring device detects and records the surface structure of the target. The first camera and the second camera have telescopic functions, which can better adapt to different detection targets, and have the characteristics of wide coverage, easy installation and labor saving.

[0016] 2. The utility model saves engineering costs and can significantly reduce the installation space on the bridge, so that a smaller bridge side size can be designed, which indirectly saves the amount of bridge pier steel bars and concrete, and is more economical and adaptable than other crack detection devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the disassembly of the utility model.

[0019] Parts and numbers in the picture:

[0020] 1-mobile box; 2-double track; 3-upper monitoring device; 4-lower monitoring device; 5-buckle; 6-pulley; 7-balance board; 301-first camera; 302-first connecting plate; 303-first motor; 304-first rack; 401-second camera; 402-second connecting plate; 403-second motor; 404-second rack; 405-movable plate. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but is not intended to limit the present invention. Any technical solution based on the transformation or inference of the present invention falls within the protection scope of the present invention.

[0022] like Figure 1 , 2 As shown, the utility model is a bridge crack detection device, comprising a mobile box 1 and a double track 2, the top of the mobile box 1 is connected to a horizontally retractable upper monitoring device 3, and the bottom is connected to a horizontally retractable lower monitoring device 4; a buckle 5 is fixedly connected to the upper middle part of the mobile box 1, a pulley 6 is rotatably connected above the buckle 5, the pulley 6 is in rolling contact with the outer surface of one of the double tracks 2, the buckle 5 is slidably connected to the other of the double tracks 2, an adjustable balance board 7 is clamped in the middle of the mobile box 1, and a lighting device is installed at the front end of the balance board 7.

[0023] In the above scheme, the detection device is installed on the double track 2, and is slidably connected to one track through the buckle 5. The pulley 6 is in rolling contact with the outer surface of the other track. The lower monitoring device 4 can detect the external structure of the target, and the upper monitoring device 3 can detect and record the surface structure of the target. The first camera 301 and the second camera 401 both have telescopic functions, which can better adapt to different detection targets.

[0024] Further preferably, the upper monitoring device 3 includes a first camera 301, a first connecting plate 302, a first motor 303 and a first rack 304, the first camera 301 is fixedly connected to the end of the first connecting plate 302, the first motor 303 is fixedly connected to the top of the first connecting plate 302, the first connecting plate 302 is telescopically connected to the side wall of the mobile box 1, the first rack 304 is fixedly connected to the side wall of the mobile box 1, and the output end of the first motor 303 is connected to the first rack 304 through a gear set.

[0025] In the above scheme, the output end of the first motor 303 is connected to the first rack 304 through a gear set. Driven by the first motor 303, the upper monitoring device 3 as a whole can extend outward along the first rack 304, or retract inward along the first rack 304; the first connecting plate 302 can be connected to the side wall of the mobile box 1 through a telescopic rod, or through other structures that can realize the telescopic function.

[0026] Preferably, the lower monitoring device 4 includes a second camera 401, a second connecting plate 402, a second motor 403, a second rack 404 and a movable plate 405, the second camera 401 is fixedly connected to the end of the second connecting plate 402, the second motor 403 is fixedly connected to the top of the second connecting plate 402, the second connecting plate 402 is telescopically connected to the side wall of the movable plate 405, the second rack 404 is fixedly connected to the side wall of the movable plate 405, the output end of the second motor 403 is connected to the second rack 404 through a gear set, and the movable plate 405 is slidably connected to the inner wall of the mobile box 1.

[0027] In the above scheme, the output end of the second motor 403 is connected to the second rack through a gear set. Driven by the second motor 403, the lower monitoring device 4 as a whole can extend outward along the second rack 404, or retract inward along the second rack 404. The second connecting plate 402 can be connected to the side wall of the movable plate 405 through a telescopic rod, or through other structures that can achieve a telescopic function; and the movable plate 405 can drive the lower monitoring device 4 to move in the vertical direction as a whole by setting a slider on the back side, opening a slide groove on the side wall of the movable box 1, and sliding in the vertical direction through the motor, gear and rack.

[0028] Preferably, a motor is provided in the mobile box 1, and the rotating shaft of the pulley 6 is connected to the motor through a gear train. The motor controls the rotation of the pulley 6 so that the device as a whole moves on the double track.

[0029] Preferably, a lighting device is provided above the second camera 401. The second camera 401 is located at the bottom, and there may be obstacles blocking the light, and the lighting device provides sufficient light to the second camera 401.

[0030] Preferably, a control circuit board is integrated in the mobile box 1, and the control circuit board is respectively connected to the motor, the first motor 303, and the second motor 403. Various electronic components can be integrated on the control circuit board to control the motor.

[0031] Preferably, the first camera 301 and the second camera 401 are high-resolution digital cameras, which can accurately capture the fine details of the bridge surface and ensure image clarity.

[0032] In order to protect the camera, a protective cover is arranged on the outside of the camera.

[0033] Working Engineering:

[0034] First, install the double track 2 on both sides of the bridge, and install the detection device of the utility model on the double track 2 on both sides, and slide it with one track through the buckle 5. The pulley 6 rolls in contact with the outer surface of the other track. The lower part of the device is the second camera 401 and the lighting device, which can detect the external structure of the target. The upper part of the device is the first camera 301, which can detect and record the surface structure of the target. The upper and lower camera parts have telescopic functions, which can better adapt to different detection targets. The whole device keeps cruising on the track through the motor connected to the pulley 6. The device detects the external and internal structures of the detection object through video detection and records the information.

[0035] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the description are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A bridge crack detection device, comprising a mobile box (1) and a double track (2), characterized in that: The top of the mobile box (1) is connected to an upper monitoring device (3) that can be extended horizontally, and the bottom is connected to a lower monitoring device (4) that can be extended horizontally; A buckle (5) is fixedly connected to the upper middle part of the mobile box (1), a pulley (6) is rotatably connected to the upper part of the buckle (5), the pulley (6) is in rolling contact with the outer surface of one of the double tracks (2), and the buckle (5) is slidably connected to the other of the double tracks (2), an adjustable balance board (7) is clamped in the middle part of the mobile box (1), and a lighting device is installed at the front end of the balance board (7).

2. A bridge crack detection device according to claim 1, characterized in that: The upper monitoring device (3) comprises a first camera (301), a first connecting plate (302), a first motor (303) and a first rack (304); the first camera (301) is fixedly connected to the end of the first connecting plate (302); the first motor (303) is fixedly connected to the top of the first connecting plate (302); the first connecting plate (302) is telescopically connected to the side wall of the mobile box (1); the first rack (304) is fixedly connected to the side wall of the mobile box (1); and the output end of the first motor (303) is connected to the first rack (304) through a gear train.

3. A bridge crack detection device according to claim 2, characterized in that: The lower monitoring device (4) comprises a second camera (401), a second connecting plate (402), a second motor (403), a second rack (404) and a movable plate (405); the second camera (401) is fixedly connected to the end of the second connecting plate (402); the second motor (403) is fixedly connected to the top of the second connecting plate (402); the second connecting plate (402) is telescopically connected to the side wall of the movable plate (405); the second rack (404) is fixedly connected to the side wall of the movable plate (405); the output end of the second motor (403) is connected to the second rack (404) through a gear train; and the movable plate (405) is slidably connected to the inner wall of the movable box (1).

4. A bridge crack detection device according to claim 3, characterized in that: A motor is arranged in the movable box (1), and the rotating shaft of the pulley (6) is connected to the motor via a gear set.

5. A bridge crack detection device according to claim 4, characterized in that: A lighting device is provided above the second camera (401).

6. A bridge crack detection device according to claim 5, characterized in that: A control circuit board is integrated in the mobile box (1), and the control circuit board is respectively connected to the motor, the first motor (303), and the second motor (403).

7. A bridge crack detection device according to claim 6, characterized in that: The first camera (301) and the second camera (401) are high-resolution digital cameras.

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