Bridge crack detection device

By designing a bridge crack detection device, which uses an electric telescopic pole and a camera to enter the bridge crack and take pictures, and combines this with a caliper to measure the crack width, the problem of difficult detection of cracks at the bottom of the bridge has been solved, improving detection efficiency and accuracy.

CN224095710UActive Publication Date: 2026-04-07张卫
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-09
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

In existing technologies, cracks at the bottom or joints of bridges are difficult to detect with large-volume detection devices, resulting in low detection efficiency.

Method used

A bridge crack detection device was designed, comprising components such as an electric telescopic pole, a control host, a camera, a chuck, and an LED light head. The electric telescopic pole drives the camera to enter the crack to take pictures, and the chuck and a rotary motor are used to measure the crack width.

Benefits of technology

It enables efficient detection of cracks at the bottom and joints of bridges, improves the practicality and functionality of the detection device, and enhances stability and measurement accuracy in confined environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a bridge crack detection device. The bridge crack detection device comprises an electric telescopic rod, one end of the electric telescopic rod is fixedly connected with a shell, and a storage battery is fixedly installed in the shell. According to the bridge crack detection device provided by the utility model, the control host is arranged, when bridge crack detection is carried out, the electric telescopic rod and the control host are started, so that the electric telescopic rod can drive the limiting sleeve to extend through the positioning sleeve, and at the moment, the limiting sleeve is inserted into the top of a bridge crack through the electric telescopic rod; according to the crack detection device, the limiting sleeve can drive the camera to move to the position above the crack, so that the camera can shoot the internal environment of the crack and then convey the internal environment into the control host, the control host can visually display the internal environment of the crack through the display screen, and then the effect of detecting the crack in the narrow environment is achieved; therefore, the practicability of the detection device is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the field of crack detection, especially to a bridge crack detection device. BACKGROUND

[0002] Bridge is an extremely important part of the traffic system, and some cracks will inevitably occur in the long-term use process. According to the different parameters of the width, length and depth of the cracks, the harmfulness will also be different. After the cracks appear on the bridge, the cracks need to be detected in time to judge the harmfulness. In the prior art, it is relatively simple to detect on the bridge deck, but it is not easy to detect the position of the bridge bottom and both sides due to the high height from the ground. Usually, a working platform is built to enable the staff to hold the detection device to detect it. However, such detection method is relatively inconvenient and the detection efficiency is low.

[0003] In the prior art, such as the "Bridge Crack Detection Device" with the authorized announcement number CN222618515U, which includes a base, a screw block mechanism is installed on the base, the screw block mechanism drives the left and right lower fixed plates to relatively close or away from each other; an electric push rod is installed in each lower fixed plate, the electric push rod drives the upper fixed plate to rise and fall; a connecting plate is detachably installed at the top end of each upper fixed plate, a roller is installed at the lower end of the connecting plate, and the roller is driven to rotate by a driving assembly. The bridge crack detection device provided by the utility model can realize the rapid detection of bridge cracks.

[0004] When detecting the bridge cracks in the prior art, since the bridge cracks mostly occur in the relatively concealed areas such as the bridge bottom or the connecting part, it is difficult for the detection device with a large volume to detect the relatively concealed cracks.

[0005] Therefore, it is necessary to provide a bridge crack detection device to solve the above technical problems. UTILITY MODEL CONTENTS

[0006] The utility model provides a bridge crack detection device, which solves the problem that the detection device with a large volume is difficult to detect the relatively concealed cracks since the bridge cracks mostly occur in the relatively concealed areas such as the bridge bottom or the connecting part.

[0007] In order to solve the above technical problems, the utility model provides a bridge crack detection device, including electric telescopic link, one end of electric telescopic link is fixedly connected with the shell, the inside fixed mounting of shell has the battery, the outside fixed sleeve of electric telescopic link has the antiskid sleeve, the top fixed mounting of electric telescopic link has control host, the top fixed mounting of control host has display screen, the other end of electric telescopic link is fixedly connected with the positioning sleeve, the inside screw sleeve of positioning sleeve has bolt, the inside movable sleeve of positioning sleeve has the turnover column, one end of turnover column is fixedly connected with the limit sleeve, the inside fixed sleeve of limit sleeve has the locating block, the side fixed mounting of limit sleeve has the rotary motor, the output shaft fixed connection of rotary motor has the two -way threaded rod, the outside screw sleeve of two -way threaded rod has sliding block, the top fixed connection of sliding block has the card sword, the bottom movable sleeve of limit sleeve cavity has the sliding ball, the top fixed mounting of locating block has the camera, the top fixed mounting of locating block has the LED lamp holder, the front of limit sleeve is equipped with scale groove.

[0008] Preferably, the input end of the control host is signal connected with the input end of the camera, and the output end of the control host is signal connected with the input end of the rotary motor respectively.

[0009] Preferably, the antiskid sleeve is matched with the electric telescopic link, and the material of the antiskid sleeve is silica gel material.

[0010] Preferably, the front of the positioning sleeve is Y-shaped, and the positioning sleeve is matched with the turnover column.

[0011] Preferably, the number of the card sword is two, and the two card swords are symmetrically distributed with the locating block as the symmetric axis.

[0012] Preferably, the number of the sliding ball is several, and the several sliding balls are evenly distributed at the bottom of the limit sleeve cavity.

[0013] Preferably, the number of the LED lamp holder is several, and the several LED lamp holders are evenly distributed around the camera.

[0014] Preferably, the limit sleeve is matched with the sliding block, and the limit sleeve and the electric telescopic link are perpendicular to each other.

[0015] Preferably, the two -way threaded rod movable sleeve is in the inside of limit sleeve, and the two -way threaded rod and the locating block are perpendicular to each other.

[0016] Compared with the related art, the utility model provides a bridge crack detection device with the following beneficial effects:

[0017] This utility model provides a bridge crack detection device. By setting up a control host, when bridge crack detection is carried out, the electric telescopic rod and the control host are activated, so that the electric telescopic rod can extend through the positioning sleeve and drive the limiting sleeve to extend. At this time, the limiting sleeve is inserted into the top of the bridge crack through the electric telescopic rod, so that the limiting sleeve can move the camera above the crack, so that the camera can take pictures of the internal environment of the crack and transmit them to the internal of the control host. The control host can then intuitively display the internal environment of the crack on the display screen, thereby achieving the detection effect of cracks in a narrow environment, thus improving the practicality of the detection device.

[0018] By setting a bidirectional threaded rod, when detecting bridge cracks, the clamping knife is fitted inside the crack. At this time, the rotary motor is started, which drives the sliding block to move horizontally through the bidirectional threaded rod. This causes the two clamping knives to squeeze and hold on both sides of the inner wall of the crack. Then, the clamping knife is removed, allowing the staff to measure the distance between the clamping knives through the scale groove, thus achieving the effect of measuring the width of the bridge crack and improving the functionality of the crack detection device. Attached Figure Description

[0019] Figure 1 A schematic diagram of a preferred embodiment of a bridge crack detection device provided by this utility model;

[0020] Figure 2 for Figure 1 The image shows a front view of a bridge crack detection device.

[0021] Figure 3 for Figure 1 The diagram shows an enlarged view of point A in a bridge crack detection device.

[0022] Figure 4 for Figure 1 The diagram shows the electrical connection of the control host in a bridge crack detection device.

[0023] The following are the labels in the diagram: 1. Electric telescopic pole; 2. Housing; 3. Battery; 4. Anti-slip sleeve; 5. Control host; 6. Display screen; 7. Positioning sleeve; 8. Bolt; 9. Flip column; 10. Limit sleeve; 11. Positioning block; 12. Rotary motor; 13. Two-way threaded rod; 14. Sliding block; 15. Card; 16. Sliding ball; 17. Camera; 18. LED lamp head; 19. Scale groove. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] Please refer to the following: Figure 1 , Figure 2 , Figure 3 ,Figure 4 ,in, Figure 1 A schematic diagram of a preferred embodiment of a bridge crack detection device provided by this utility model; Figure 2 for Figure 1 The image shows a front view of a bridge crack detection device. Figure 3 for Figure 1 The diagram shows an enlarged view of point A in a bridge crack detection device. Figure 4 for Figure 1 The diagram shows the electrical connection of the control host in a bridge crack detection device. The bridge crack detection device includes an electric telescopic rod 1, with a housing 2 fixedly connected to one end of the electric telescopic rod 1. A battery 3 is fixedly installed inside the housing 2. An anti-slip sleeve 4 is fixedly fitted onto the outside of the electric telescopic rod 1. A control host 5 is fixedly installed on the top of the electric telescopic rod 1, and a display screen 6 is fixedly installed on the top of the control host 5. A positioning sleeve 7 is fixedly connected to the other end of the electric telescopic rod 1. A bolt 8 is threaded into the inside of the positioning sleeve 7. A flipping column 9 is movably fitted inside the positioning sleeve 7, and a limit sleeve 10 is fixedly connected to one end of the flipping column 9. The limiting sleeve 10 has a positioning block 11 fixedly fitted inside. A rotary motor 12 is fixedly installed on the side of the limiting sleeve 10. A bidirectional threaded rod 13 is fixedly connected to the output shaft of the rotary motor 12. A sliding block 14 is threadedly fitted on the outside of the bidirectional threaded rod 13. A chuck 15 is fixedly connected to the top of the sliding block 14. A sliding ball 16 is movably fitted at the bottom of the inner cavity of the limiting sleeve 10. A camera 17 is fixedly installed on the top of the positioning block 11. An LED lamp head 18 is fixedly installed on the top of the positioning block 11. A scale groove 19 is opened on the front of the limiting sleeve 10.

[0026] The input terminal of the control host 5 is connected to the input terminal of the camera 17, and the output terminal of the control host 5 is connected to the input terminals of the display screen 6 and the rotary motor 12 respectively. By setting the control host 5, when bridge crack detection is performed, the electric telescopic rod 1 and the control host 5 are activated, so that the electric telescopic rod 1 can extend through the positioning sleeve 7 to drive the limiting sleeve 10. At this time, the limiting sleeve 10 is inserted into the top of the bridge crack through the electric telescopic rod 1, so that the limiting sleeve 10 can move the camera 17 above the crack, so that the camera 17 can take pictures of the internal environment of the crack and transmit them to the inside of the control host 5, so that the control host 5 can display the internal environment of the crack intuitively through the display screen 6, thereby achieving the detection effect of cracks in narrow environments, thus improving the practicality of the detection device.

[0027] The anti-slip sleeve 4 is compatible with the electric telescopic rod 1, and the anti-slip sleeve 4 is made of silicone material. By setting the anti-slip sleeve 4, when the detection device is moved and used, the anti-slip sleeve 4 greatly improves the friction of the surface of the electric telescopic rod 1, thereby avoiding the problem of slippage when the electric telescopic rod 1 is held and moved for a long time, thus improving the stability of the detection device when held and used.

[0028] The positioning sleeve 7 has a Y-shaped front and is compatible with the flipping column 9. By setting the positioning sleeve 7, when the angle of the limiting sleeve 10 needs to be adjusted, the flipping column 9 is flipped, which drives the limiting sleeve 10 to flip. At this time, the rotating bolt 8 is rotated, which drives the positioning sleeve 7 to clamp, thereby fixing the flipping column 9 inside the positioning sleeve 7. This achieves the effect of adjusting the angle between the limiting sleeve 10 and the electric telescopic rod 1, thus bringing convenience to the adjustment of the detection angle of the detection device.

[0029] There are two clamping blades 15, which are symmetrically distributed about the positioning block 11. By setting the clamping blades 15, when the bridge crack is being detected, the limiting sleeve 10 can drive the clamping blades 15 to fit inside the crack, so that the clamping blades 15 can be stuck inside the crack. This allows the clamping blades 15 to provide auxiliary positioning and support for the limiting sleeve 10, thereby avoiding the problem of the limiting sleeve 10 being too long and requiring a lot of effort to hold for a long time, thus improving the convenience of holding the detection device.

[0030] There are several sliding balls 16, which are evenly distributed at the bottom of the inner cavity of the limiting sleeve 10. By setting the sliding balls 16, when the sliding block 14 drives the chuck 15 to move horizontally, the sliding balls 16 can support and limit the horizontally moving sliding block 14, thereby avoiding the problem of friction between the sliding block 14 and the bottom of the inner cavity of the limiting sleeve 10 when it moves horizontally, thus improving the smoothness of the horizontal movement of the sliding block 14.

[0031] There are several LED lamp heads 18, which are evenly distributed around the camera 17. By setting up the LED lamp heads 18, when detecting the internal environment of the crack, the LED lamp heads 18 are activated, so that the LED lamp heads 18 can illuminate the detection area of ​​the camera 17. This avoids the problem that the clarity of the image captured by the camera 17 is greatly reduced when the detection environment is dark, thereby improving the clarity of the internal environment detection of the crack.

[0032] The limiting sleeve 10 is adapted to the sliding block 14, and the limiting sleeve 10 and the electric telescopic rod 1 are perpendicular to each other. By setting the limiting sleeve 10, when the sliding block 14 is moved and adjusted, the limiting sleeve 10 can limit the horizontally moving sliding block 14, so as to avoid the problem of tilting and deflection when the sliding block 14 moves horizontally, thereby improving the stability of the chuck 15 when it moves horizontally.

[0033] The bidirectional threaded rod 13 is movably sleeved inside the limiting sleeve 10, and the bidirectional threaded rod 13 is perpendicular to the positioning block 11. By setting the bidirectional threaded rod 13, when bridge crack detection is performed, the clamping knife 15 is sleeved inside the crack. At this time, the rotary motor 12 is started, so that the rotary motor 12 drives the sliding block 14 to move horizontally through the bidirectional threaded rod 13, that is, it drives the two clamping knives 15 to squeeze and clamp on both sides of the inner wall of the crack. At this time, the clamping knife 15 is removed, so that the staff can measure the distance between the clamping knives 15 through the scale groove 19, thus achieving the effect of measuring the width of the bridge crack, thereby improving the functionality of the crack detection device.

[0034] The working principle of the bridge crack detection device provided by this utility model is as follows:

[0035] Step 1: When detecting bridge cracks, the electric telescopic pole 1 and control host 5 are activated. The electric telescopic pole 1 extends via the positioning sleeve 7, driving the limiting sleeve 10 to extend. The limiting sleeve 10 is then inserted into the top of the bridge crack, allowing the camera 17 to move above the crack. The camera 17 then captures images of the crack's interior and transmits them to the control host 5. The control host 5 displays the interior environment on the display screen 6, achieving effective crack detection in confined spaces and improving the practicality of the detection device. When the detection device is moved, the anti-slip sleeve 4 significantly increases the friction on the surface of the electric telescopic pole 1, preventing slippage during prolonged handheld movement. The stability of the detection device when used by hand is improved. When the angle of the limiting sleeve 10 needs to be adjusted, the flipping column 9 is flipped, which drives the limiting sleeve 10 to flip. At this time, the rotating bolt 8 is rotated, which drives the positioning sleeve 7 to clamp, so that the flipping column 9 is fixed inside the positioning sleeve 7. This achieves the effect of adjusting the angle between the limiting sleeve 10 and the electric telescopic rod 1, thus bringing convenience to the adjustment of the detection angle of the detection device. When detecting bridge cracks, the limiting sleeve 10 drives the clamping knife 15 to be sleeved inside the crack, so that the clamping knife 15 is stuck inside the crack. This allows the clamping knife 15 to provide auxiliary positioning support for the limiting sleeve 10, thus avoiding the problem of the large length of the limiting sleeve 10 causing difficulty in holding it for a long time, thereby improving the convenience of holding the detection device by hand.

[0036] Step 2: When the sliding block 14 moves the chuck 15 horizontally, the sliding ball 16 supports and limits the horizontally moving sliding block 14, thus avoiding friction between the sliding block 14 and the bottom of the inner cavity of the limiting sleeve 10, thereby improving the smoothness of the horizontal movement of the sliding block 14. When detecting the internal environment of the crack, the LED lamp head 18 is activated, illuminating the detection area of ​​the camera 17, thus avoiding the problem of greatly reduced image clarity caused by dark ambient light, thereby improving the clarity of the crack internal environment detection. When adjusting the movement of the sliding block 14, the limiting... The sleeve 10 limits the horizontal movement of the sliding block 14, preventing tilting and deviation during horizontal movement and improving the stability of the clamping knife 15 during horizontal movement. When detecting bridge cracks, the clamping knife 15 is sleeved inside the crack. The rotary motor 12 is then started, causing it to drive the sliding block 14 horizontally via the bidirectional threaded rod 13. This causes the two clamping knives 15 to be squeezed and clamped on both sides of the inner wall of the crack. The clamping knife 15 is then removed, allowing the operator to measure the spacing between the clamping knives 15 through the scale groove 19, thus achieving the measurement of the width of the bridge crack and improving the functionality of the crack detection device.

[0037] Compared with related technologies, the bridge crack detection device provided by this utility model has the following advantages:

[0038] By setting up the control host 5, when bridge crack detection is carried out, the electric telescopic rod 1 and the control host 5 are activated, so that the electric telescopic rod 1 can extend through the positioning sleeve 7 to drive the limiting sleeve 10 to extend. At this time, the limiting sleeve 10 is inserted into the top of the bridge crack through the electric telescopic rod 1, so that the limiting sleeve 10 can move the camera 17 above the crack, so that the camera 17 can take pictures of the internal environment of the crack and transmit them to the inside of the control host 5. The control host 5 can then display the internal environment of the crack intuitively through the display screen 6, thereby achieving the detection effect of cracks in a narrow environment, thus improving the practicality of the detection device.

[0039] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A bridge crack detection device, comprising an electric telescopic pole (1), characterized in that: One end of the electric telescopic rod (1) is fixedly connected to a housing (2), and a battery (3) is fixedly installed inside the housing (2). An anti-slip sleeve (4) is fixedly fitted onto the outside of the electric telescopic rod (1). A control host (5) is fixedly installed on the top of the electric telescopic rod (1), and a display screen (6) is fixedly installed on the top of the control host (5). The other end of the electric telescopic rod (1) is fixedly connected to a positioning sleeve (7), and a bolt (8) is threaded into the inside of the positioning sleeve (7). A flipping column (9) is movably fitted inside the positioning sleeve (7), and a limit sleeve (10) is fixedly connected to one end of the flipping column (9). The inner cavity of the limiting sleeve (10) is fixedly fitted with a positioning block (11). A rotary motor (12) is fixedly installed on the side of the limiting sleeve (10). A bidirectional threaded rod (13) is fixedly connected to the output shaft of the rotary motor (12). A sliding block (14) is threadedly fitted on the outer side of the bidirectional threaded rod (13). A chuck (15) is fixedly connected to the top of the sliding block (14). A sliding ball (16) is movably fitted at the bottom of the inner cavity of the limiting sleeve (10). A camera (17) is fixedly installed on the top of the positioning block (11). An LED lamp head (18) is fixedly installed on the top of the positioning block (11). A scale groove (19) is opened on the front side of the limiting sleeve (10).

2. The bridge crack detection device according to claim 1, characterized in that, The input terminal of the control host (5) is connected to the input terminal of the camera (17), and the output terminal of the control host (5) is connected to the input terminal of the display screen (6) and the rotary motor (12) respectively.

3. The bridge crack detection device according to claim 1, characterized in that, The anti-slip sleeve (4) is adapted to the electric telescopic rod (1), and the anti-slip sleeve (4) is made of silicone material.

4. The bridge crack detection device according to claim 1, characterized in that, The front of the positioning sleeve (7) is Y-shaped, and the positioning sleeve (7) is adapted to the flip post (9).

5. A bridge crack detection device according to claim 1, characterized in that, The number of the chucks (15) is two, and the two chucks (15) are symmetrically distributed about the positioning block (11) as the axis of symmetry.

6. A bridge crack detection device according to claim 1, characterized in that, The number of the sliding balls (16) is several, and the several sliding balls (16) are evenly distributed at the bottom of the inner cavity of the limiting sleeve (10).

7. A bridge crack detection device according to claim 1, characterized in that, The number of LED lamp heads (18) is several, and the several LED lamp heads (18) are evenly distributed around the camera (17).

8. A bridge crack detection device according to claim 1, characterized in that, The limiting sleeve (10) is adapted to the sliding block (14), and the limiting sleeve (10) and the electric telescopic rod (1) are perpendicular to each other.

9. A bridge crack detection device according to claim 1, characterized in that, The bidirectional threaded rod (13) is movably sleeved inside the limiting sleeve (10), and the bidirectional threaded rod (13) and the positioning block (11) are perpendicular to each other.

Citation Information

Patent Citations

  • Bridge crack detection device

    CN222618515U