An unmanned aerial vehicle detection device for underwater bridge detection

Abstract

The utility model relates to underwater bridge detection technical field discloses a kind of unmanned aerial vehicle detection equipment for underwater bridge detection, including unmanned remote control ship body, the solid connection of unmanned remote control ship body has top box and counterweight, and the side solid connection of unmanned remote control ship body has fixed box, the inside of unmanned remote control ship body is equipped with two cylindrical holes, by integrating telescopic rotating brush cleaning component, laser range finder and high-definition underwater camera on unmanned remote control ship body, synchronous telescoping and rotation are realized by servo motor and threaded sleeve plate: it can be efficiently removed bridge pier surface adherend before detection, avoid sensor being shielded, it can also be quickly switched to ranging-imaging mode to obtain clean and high-resolution geometric and image data;While ship body positioning is flexible, operation whole process does not need diver to dive, significantly improve detection accuracy and efficiency, reduce personal risk and maintenance cost, overall improve the automation and reliability of bridge underwater detection.

Description

Technical Field

[0001] This utility model relates to the field of underwater bridge inspection technology, specifically to an unmanned aerial vehicle (UAV) inspection device for underwater bridge inspection. Background Technology

[0002] Underwater bridge inspection refers to the technical activity of assessing the condition of the structural parts of a bridge located in water (such as piers, pile foundations, abutments, pile caps, and casings) using methods such as artificial diving, remotely operated underwater vehicles (ROVs), sonar, lasers, and underwater cameras.

[0003] Underwater bridge structures (such as piers and pile foundations) are constantly exposed to turbid water, strong currents, and highly attached organisms. Traditional inspection methods typically rely on manual inspection by divers or simple towed sonar cameras. The former is dangerous, inefficient, and limited by visibility; the latter lacks precise positioning and surface cleaning capabilities, and algae, shells, and silt can obstruct sensors, leading to distortion of laser ranging and image acquisition data, making it difficult to form reliable evidence for defect identification.

[0004] Therefore, it is necessary to design a drone inspection device for underwater bridge inspection to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a drone inspection device for underwater bridge inspection, which solves the technical problems mentioned in the background.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A drone inspection device for underwater bridge inspection, comprising a drone-controlled hull, a top box and a counterweight fixedly connected to the drone-controlled hull, and a fixed box fixedly connected to one side of the drone-controlled hull. Two cylindrical holes are opened inside the drone-controlled hull, and a second servo motor is fixedly connected to one side of one of the cylindrical holes. A rotating hollow shaft is fixedly connected to the output shaft of the second servo motor. A telescopic insert is slidably inserted into the interior of the rotating hollow shaft. A post is fixedly inserted into one end of the telescopic insert, and both ends of the post are... A limiting block is fixedly connected, and two symmetrical sliding openings are provided on the outer surface of the insertion post. The two ends of the insertion post are slidably inserted into the interior of the two sliding openings. A horizontal moving mechanism is provided inside the top box. The horizontal moving mechanism is rotatably sleeved on the outer surface of the telescopic insertion shaft. A connecting block is fixedly connected to the horizontal moving mechanism. A connecting piece is fixedly connected to one end of the connecting block. A laser rangefinder and a high-definition underwater camera are fixedly connected to one side of each end of the connecting piece. A rotating block is fixedly connected to one end of the telescopic insertion shaft. A fixing block is fixedly connected inside the rotating block. Multiple bristles are fixedly connected to one side of the fixing block.

[0007] Preferably, the horizontal movement mechanism includes a third servo motor, which is fixed to one side of the top box. The output shaft of the third servo motor is fixed to a screw, and a threaded sleeve is threaded onto the outer surface of the screw. The bottom end of the threaded sleeve is rotatably sleeved onto the outer surface of the telescopic insert shaft via a bearing. Square sliding openings are provided at the bottom of the top box and the top of the unmanned remote-controlled boat. The threaded sleeve is slidably disposed inside the two sliding openings, and the connecting block is fixed to one side of the threaded sleeve.

[0008] Preferably, the threaded sleeve is square in shape, and the two sides of the threaded sleeve are respectively attached to the two sides of the sliding opening, and the top of the threaded sleeve is attached to the top of the inner cavity of the top box.

[0009] Preferably, the connecting block is U-shaped, and the fixing box has an opening on one side and two square openings on the top. The two ends of the U-shape of the connecting block are slidably disposed inside the two square openings, and the laser rangefinder and the high-definition underwater camera are both slidably disposed inside the fixing box.

[0010] Preferably, the bottom of the fixing box is provided with multiple water-permeable holes, and a block is embedded in one side of the top box. A first servo motor is fixedly connected to one side of the block. The output shaft of the first servo motor is fixedly connected to a rotating shaft. A rotating plate is fixedly sleeved on the outer surface of the rotating shaft. A groove is provided in one side of the top box, and an opening is provided in one side of the fixing box. The rotating plate is rotatably disposed on one side of the groove and the opening, and one side of the rotating plate is in contact with one side of the groove and the opening.

[0011] Preferably, the top of the groove has an arc-shaped surface, and the rotating plate is rotatably positioned below the arc-shaped surface.

[0012] The technical solution provided by this utility model has the following advantages compared with the prior art:

[0013] This invention integrates a retractable and rotatable brush cleaning component, a laser rangefinder, and a high-definition underwater camera onto an unmanned remote-controlled vessel. Synchronous extension and rotation are achieved via a servo motor and threaded sleeve. This allows for efficient removal of surface debris from bridge piers before inspection, preventing sensor obstruction, and rapid switching to a ranging-imaging mode to acquire clean and high-resolution geometric and image data. Furthermore, the vessel's flexible positioning and the fact that no divers are required throughout the operation significantly improve inspection accuracy and efficiency, reduce personal injury risks and maintenance costs, and overall enhance the automation and reliability of underwater bridge inspection. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the rotating hollow shaft structure of this utility model;

[0016] Figure 3 This is an exploded view of the rotating hollow shaft structure of this utility model;

[0017] In the diagram: 1. Unmanned remote-controlled hull; 2. Top box; 3. Counterweight; 4. Insert block; 5. First servo motor; 6. Rotating plate; 7. Fixing box; 8. Second servo motor; 9. Rotating hollow shaft; 10. Third servo motor; 11. Screw; 12. Threaded sleeve plate; 13. Telescopic insert shaft; 14. Insert post; 15. Limit block; 16. Rotating block; 17. Fixing block; 18. Laser rangefinder; 19. High-definition underwater camera; 20. Connecting piece; 21. Connecting block; 22. Rotating shaft. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0019] Obviously, many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0020] Please see Figure 1-3This utility model provides an unmanned aerial vehicle (UAV) inspection device for underwater bridge inspection, including an unmanned remote-controlled vessel hull 1. A top box 2 and a counterweight 3 are fixedly connected to the unmanned remote-controlled vessel hull 1, and a fixing box 7 is fixedly connected to one side of the hull. Two cylindrical holes are opened inside the unmanned remote-controlled vessel hull 1, and a second servo motor 8 is fixedly connected to one side of one of the cylindrical holes. A rotating hollow shaft 9 is fixedly connected to the output shaft of the second servo motor 8. A telescopic insertion shaft 13 is slidably inserted inside the rotating hollow shaft 9, and a pin 1 is fixedly inserted into one end of the telescopic insertion shaft 13. 4. Both ends of the insertion post 14 are fixedly connected to limit blocks 15, and the outer surface of the insertion post 14 has two symmetrical sliding openings. The two ends of the insertion post 14 are slidably inserted into the interior of the two sliding openings. The top box 2 is provided with a horizontal moving mechanism. The horizontal moving mechanism is rotatably sleeved on the outer surface of the telescopic insertion shaft 13, and a connecting block 21 is fixedly connected to the horizontal moving mechanism. One end of the connecting block 21 is fixedly connected to a connecting piece 20. A laser rangefinder 18 and a high-definition underwater camera 19 are respectively fixed to one side of each end of the connecting piece 20. The telescopic... A rotating block 16 is fixedly connected to one end of the insert shaft 13. A fixed block 17 is fixedly connected inside the rotating block 16. Multiple bristles are fixedly connected to one side of the fixed block 17. By moving the unmanned remote-controlled boat 1 to the pier to be detected, the screw 11 is rotated by the activation of the third servo motor 10, causing the threaded sleeve 12 to slide inside the top box 2 and the unmanned remote-controlled boat 1. This adjusts the sliding extension of the telescopic insert shaft 13 inside the rotating hollow shaft 9, thereby causing the rotating block 16 and the fixed block 17 to extend synchronously out of the fixed box 7. The second servo motor 8 is then activated. When the rotating block 16 is activated, it causes the hollow shaft 9 to rotate synchronously, driving the telescopic insert shaft 13 to rotate. Multiple bristles clean the impurities attached to the underwater bridge pier, thus avoiding affecting the accuracy of the detection data collection of the laser rangefinder 18 and the high-definition underwater camera 19. When the rotating block 16 extends out of the fixed box 7, the threaded sleeve 12 also drives the laser rangefinder 18 and the high-definition underwater camera 19 to extend. The laser rangefinder 18 and the high-definition underwater camera 19 are located on both sides of the rotating block 16 and behind the rotating block 16, which facilitates the detection of the underwater bridge pier after the impurities are cleaned.

[0021] To facilitate the retraction and extension of the rotating block 16, the laser rangefinder 18, and the high-definition underwater camera 19, the horizontal movement mechanism includes a third servo motor 10. The third servo motor 10 is fixed to one side of the top box 2, and the output shaft of the third servo motor 10 is fixed to a screw 11. The outer surface of the screw 11 is threaded with a threaded sleeve plate 12. The bottom end of the threaded sleeve plate 12 is rotatably sleeved on the outer surface of the telescopic insert shaft 13 through a bearing. Square sliding openings are provided at the bottom of the top box 2 and the top of the unmanned remote-controlled boat hull 1. The threaded sleeve plate 12 is slidably disposed inside the two sliding openings, and the connecting block 21 is fixed to one side of the threaded sleeve plate 12.

[0022] To facilitate the sliding of the threaded sleeve 12 inside the top box 2, the threaded sleeve 12 is square in shape, and the two sides of the threaded sleeve 12 are respectively attached to the two sides of the sliding opening, and the top of the threaded sleeve 12 is attached to the top of the inner cavity of the top box 2.

[0023] To facilitate the installation of the laser rangefinder 18 and the high-definition underwater camera 19, and to facilitate data collection, the connecting block 21 is U-shaped, and the fixing box 7 has an opening on one side and two square openings on the top. The two U-shaped ends of the connecting block 21 are slidably disposed inside the two square openings, and the laser rangefinder 18 and the high-definition underwater camera 19 are both slidably disposed inside the fixing box 7.

[0024] Furthermore, in order to protect the internal structure of the fixed box 7 and the top box 2 when not in operation, and to facilitate the subsequent drainage of water, the bottom of the fixed box 7 is provided with multiple water-permeable holes, and a block 4 is embedded in one side of the top box 2. A first servo motor 5 is fixedly connected to one side of the block 4. The output shaft of the first servo motor 5 is fixedly connected to a rotating shaft 22. A rotating plate 6 is fixedly sleeved on the outer surface of the rotating shaft 22. A groove is provided in one side of the top box 2, and an opening is provided in one side of the fixed box 7. The rotating plate 6 is rotatably disposed on one side of the groove and the opening, and one side of the rotating plate 6 is in contact with the side of the groove and the side of the opening.

[0025] To facilitate the rotation and unfolding of the rotating plate 6, an arc-shaped surface is provided at the top of the groove, and the rotating plate 6 is rotatably positioned below the arc-shaped surface.

[0026] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0027] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

[0028] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. A drone inspection device for underwater bridge inspection, comprising an unmanned remotely controlled vessel (1), characterized in that: The unmanned remote-controlled boat hull (1) is fixedly connected to a top box (2) and a counterweight (3), and a fixed box (7) is fixedly connected to one side of the unmanned remote-controlled boat hull (1). The unmanned remote-controlled boat hull (1) has two cylindrical holes inside, and a second servo motor (8) is fixedly connected to one side of one of the cylindrical holes. The output shaft of the second servo motor (8) is fixedly connected to a rotating hollow shaft (9). A telescopic insert (13) is slidably inserted into the interior of the rotating hollow shaft (9). A plug (14) is fixedly inserted into one end of the telescopic insert (13). Limit blocks (15) are fixedly connected to both ends of the plug (14), and two symmetrical sliding openings are provided on the outer surface of the plug (14). The two ends of the insert (14) are slidably inserted into the interior of the two sliding ports. The top box (2) is provided with a horizontal moving mechanism. The horizontal moving mechanism is rotatably sleeved on the outer surface of the telescopic insert shaft (13). A connecting block (21) is fixedly connected to the horizontal moving mechanism. A connecting piece (20) is fixedly connected to one end of the connecting block (21). A laser rangefinder (18) and a high-definition underwater camera (19) are fixedly connected to one side of each end of the connecting piece (20). A rotating block (16) is fixedly connected to one end of the telescopic insert shaft (13). A fixing block (17) is fixedly connected inside the rotating block (16). Multiple bristles are fixedly connected to one side of the fixing block (17).

2. The UAV inspection equipment for underwater bridge inspection according to claim 1, characterized in that: The horizontal movement mechanism includes a third servo motor (10), which is fixed to one side of the top box (2). The output shaft of the third servo motor (10) is fixed to a screw (11), and the outer surface of the screw (11) is threaded with a threaded sleeve plate (12). The bottom end of the threaded sleeve plate (12) is rotated and sleeved on the outer surface of the telescopic insert shaft (13) through a bearing. The bottom of the top box (2) and the top of the unmanned remote-controlled boat (1) are both provided with square sliding openings. The threaded sleeve plate (12) is slidably disposed inside the two sliding openings. The connecting block (21) is fixed to one side of the threaded sleeve plate (12).

3. The UAV inspection equipment for underwater bridge inspection according to claim 2, characterized in that: The threaded sleeve (12) is square in shape, and the two sides of the threaded sleeve (12) are respectively attached to the two sides of the sliding opening. The top of the threaded sleeve (12) is attached to the top of the inner cavity of the top box (2).

4. The UAV inspection equipment for underwater bridge inspection according to claim 1, characterized in that: The connecting block (21) is U-shaped, and the fixing box (7) has an opening on one side and two square openings on the top of the fixing box (7). The two ends of the U-shape of the connecting block (21) are slidably disposed inside the two square openings, and the laser rangefinder (18) and the high-definition underwater camera (19) are both slidably disposed inside the fixing box (7).

5. The UAV inspection equipment for underwater bridge inspection according to claim 1, characterized in that: The bottom of the fixed box (7) is provided with multiple water-permeable holes, and a block (4) is embedded in one side of the top box (2). A first servo motor (5) is fixedly connected to one side of the block (4). A rotating shaft (22) is fixedly connected to the output shaft of the first servo motor (5). A rotating plate (6) is fixedly sleeved on the outer surface of the rotating shaft (22). A groove is provided on one side of the top box (2), and an opening is provided on one side of the fixed box (7). The rotating plate (6) is rotatably disposed on one side of the groove and the opening, and one side of the rotating plate (6) is in contact with one side of the groove and the one side of the opening.

6. The UAV inspection equipment for underwater bridge inspection according to claim 5, characterized in that: The top of the groove has an arc-shaped surface, and the rotating plate (6) is rotatably positioned below the arc-shaped surface.

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