Underwater defect intelligent detection equipment for bridge

Abstract

The utility model discloses intelligent underwater defect detection equipment for a bridge, which belongs to the technical field of bridge detection equipment and comprises two holding parts, each holding part comprises a frame body, clamping arms for holding a bridge pier are rotatably arranged at two ends of the front side of each frame body respectively, and the two holding parts are arranged up and down. A floating block is mounted on the upper holding part, a camera is mounted on the lower holding part, and the two holding parts are connected through a steel rope; a group of embracing arm clamping structures are additionally arranged on a robot body and used for fixing a mechanical structure body at a to-be-detected part of a pier to resist water flow, and after a pier column is clamped by an upper embracing part, equipment performs disease detection work by lowering a camera which is also provided with a group of embracing parts; the clamping force of the two clamping mechanisms acts together to resist water flow, the fixing mode is simple and flexible, and the influence of the water flow on camera shooting is avoided.

Description

Technical Field

[0001] This utility model belongs to the technical field of bridge inspection equipment, specifically relating to an intelligent underwater defect detection device for bridges. Background Technology

[0002] To promptly detect and repair bridge pier damage, the traditional method of underwater inspection using divers was initially employed. However, due to the divers' lack of relevant expertise, they were unable to accurately assess the structural condition. Researchers both domestically and internationally have proposed various non-destructive testing techniques, primarily including ultrasonic testing, ultrasonic rebound combined testing, laser infrared thermography, and sensor-based detection methods. However, in practical monitoring work, all these methods have encountered the problem of unsatisfactory monitoring data results.

[0003] Existing underwater inspection equipment moves along the bridge piers, but is easily impacted by the water flow when the current is strong, making it impossible to move along the piers in the current and thus failing to inspect the bridge piers. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide an intelligent underwater defect detection device for bridges, equipped with upper and lower clamping mechanisms to resist water flow.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] This utility model includes two holding parts, each holding part including a frame. The front ends of the frame are respectively provided with clamping arms for hugging the bridge pier. The two holding parts are arranged vertically. A float is installed on the upper holding part, and a camera is installed on the lower holding part. The two holding parts are connected by a steel cable.

[0007] Furthermore, the front end of the holding part is also provided with a roller that rotatably abuts against the side of the bridge pier, and the axis of the roller is perpendicular to the horizontal plane.

[0008] Furthermore, one of the holding parts is also equipped with a winding machine, and the steel rope is wound and wound by the winding machine.

[0009] Furthermore, the upper holding part is provided with a thruster around its perimeter. The thruster includes a motor, and the output end of the motor is provided with a propeller. The output direction of the propeller is horizontal.

[0010] Furthermore, the clamping arm includes a main arm hinged to the frame and a secondary arm hinged to the end of the main arm. The beneficial effects of this invention are:

[0011] This invention employs a set of clamping arms attached to the robot body to fix the mechanical structure at the location to be inspected on the bridge pier to resist water flow. After the upper clamping part holds the pier column, the device performs defect detection by lowering a camera also equipped with a clamping part. The clamping force of the two clamping mechanisms works together to resist water flow. The fixing method is simple and flexible, avoiding the influence of water flow on the camera.

[0012] Other advantages, objectives, and features of this invention will be set forth in the following description and will be apparent to those skilled in the art to some extent, or may be learned by practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0013] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the following drawings are provided for illustration:

[0014] Figure 1 This is a schematic diagram of the overall testing equipment according to an embodiment of the present utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the frame in an embodiment of this utility model;

[0016] The following are the markings in the attached diagram: 1. Holding part; 11. Frame; 12. Clamping arm; 121. Main arm; 122. Auxiliary arm; 13. Tensioning wheel; 14. Anti-tightening wheel; 15. Pull rope; 16. Electric push rod; 17. Roller; 18. Propeller; 181. Motor; 182. Paddle wheel; 2. Float; 3. Camera; 4. Winding machine; 41. Steel rope. Detailed Implementation

[0017] like Figure 1 , Figure 2As shown, this utility model discloses an intelligent underwater defect detection device for bridges, including two holding parts 1. Each holding part 1 includes a frame-shaped frame 11 made of several hollow steel plates. Clamping arms 12 for circumferentially encircling bridge piers are rotatably provided at both ends of the front side of the frame 11. Each clamping arm 12 includes a main arm 121 hinged to the frame 11 and a secondary arm 122 hinged to the end of the main arm 121. The hinges between the main arm 121 and the frame 11, and between the main arm 121 and the secondary arm 122, are both threaded wheel hinges. A tensioning wheel 13 is provided on the frame 11. Along with the tensioning wheel 14, a pull rope 15 is fixedly extended from the outer side of the reel of the main boom 121. The pull rope 15 wraps around the tensioning wheel 13 and is pressed against by the tensioning wheel 14. An electric push rod 16 is fixedly installed in the middle of the frame 11. The end of the electric push rod 16 is fixedly connected to the pull rope 15. Under the push of the electric push rod 16, the pull rope 15 drives the main boom 121 to rotate on the frame 11. Similarly, a rotating structure for the auxiliary boom 122 can be set. The main boom 121 has a straight cylindrical structure, and the auxiliary boom 122 has a curved rod structure. The clamping part can be retracted into the frame 11 by rotation, and can be rotated out when it is necessary to clamp the pier. The clamping arm 12 structure, which encircles the outside of the bridge pier, allows the clamping part 1 to be clamped around the outside of the bridge pier. The two clamping parts 1 are arranged vertically. The upper clamping part 1 is equipped with a float 2, which keeps it floating on the water surface. The lower clamping part 1 is equipped with a camera 3 and a winding machine 4. The winding machine 4 winds up a steel rope 41, which extends upward and is fixedly connected to the upper clamping part 1. When the winding machine 4 rotates, it releases the steel rope 41, allowing the lower holding part to sink into the water. In the process, the damage condition of the underwater bridge pier can be detected by camera 3. The front middle of the holding part 1 is also equipped with a roller 17 that rotatably abuts against the side of the bridge pier. The axis of the roller 17 is perpendicular to the horizontal plane. The upper holding part 1 is equipped with a thruster 18 around it. The thruster 18 includes a motor 181. The output end of the motor 181 is equipped with a propeller 182. The output direction of the propeller 182 is horizontal. Through the thruster 18, the holding part can be assisted to rotate around the bridge pier, so as to realize the detection of damage to the surface of the bridge pier in all directions. With the support of the roller 17, friction between the frame 11 and the bridge pier is avoided.

[0018] This detection equipment is easy to operate, uses non-contact sensing, is cost-effective, and provides intuitive sensor data, making it particularly practical in current bridge pier defect detection applications. Furthermore, based on visual inspection of defect images, the robotic inspection equipment is reusable, highly flexible, and capable of detecting many areas difficult to reach manually, achieving blind-spot-free detection of bridge pier defects and providing crucial support for bridge pier health monitoring. The equipment employs a clamping arm structure attached to the robot body to fix the mechanical structure at the target inspection location on the bridge pier to resist water flow. After the upper clamping part 1 clamps the pier column, the equipment performs defect detection by lowering a camera 3, also equipped with a clamping part 1. The clamping forces of the two clamping mechanisms work together to resist water flow, and the fixing method is simple and flexible, avoiding the influence of water flow on the camera image.

[0019] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.

Claims

1. An intelligent underwater defect detection device for bridges, characterized in that: It includes two holding parts (1), each holding part (1) includes a frame (11), and the front ends of the frame (11) are respectively provided with clamping arms (12) for hugging the bridge pier. The two holding parts (1) are arranged in an upper and lower position. A float (2) is installed on the upper holding part (1), and a camera (3) is installed on the lower holding part (1). The two holding parts (1) are connected by a steel rope (41).

2. The intelligent underwater defect detection equipment for bridges according to claim 1, characterized in that: The front end of the holding part (1) is also provided with a roller (17) that rotatably abuts against the side of the pier, and the axis of the roller (17) is perpendicular to the horizontal plane.

3. The intelligent underwater defect detection equipment for bridges according to claim 1, characterized in that: One of the holding parts (1) is also equipped with a winding machine (4), and the steel rope (41) is wound and wound by the winding machine (4).

4. The intelligent underwater defect detection equipment for bridges according to claim 1, characterized in that: The upper holding part (1) is surrounded by a thruster (18), the thruster (18) includes a motor (181), the output end of the motor (181) is provided with a propeller (182), and the output direction of the propeller (182) is horizontal.

5. The intelligent underwater defect detection equipment for bridges according to claim 1, characterized in that: The clamping arm (12) includes a main arm (121) hinged to the frame (11) and a secondary arm (122) hinged to the end of the main arm (121).

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