Bridge cable steel wire corrosion condition detection robot device
By designing horizontal and vertical connecting plates and connecting components, the problem of requiring multiple tools for disassembly of existing devices has been solved, enabling convenient disassembly and adjustment, and improving testing efficiency and applicability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI XINRUI TRANSPORTATION ENGINEERING INSPECTION CO LTD
- Filing Date
- 2025-05-08
- Publication Date
- 2026-04-14
AI Technical Summary
Existing robotic devices for inspecting the corrosion of bridge cable wires require multiple tools during assembly and maintenance, making operation cumbersome and resulting in low maintenance efficiency. They cannot meet the needs for convenient disassembly and assembly.
The device employs a design with horizontal and vertical connecting plates, combined with connecting and adjusting components. It achieves convenient disassembly and adjustment through structures such as push rods, locking pins, and knobs, simplifying the assembly process.
It improves the ease of assembly and applicability of the device, simplifies the maintenance process, and increases testing efficiency.
Smart Images

Figure CN224122482U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bridge cable wire inspection technology, and in particular to a robotic device for inspecting the corrosion status of bridge cable wires. Background Technology
[0002] In the field of bridge construction and maintenance, robotic devices for detecting the corrosion of bridge cable wires play a crucial role. With the continuous expansion of bridge construction and the increase in service life, the corrosion of cable wires has gradually become a significant factor threatening bridge safety. Corrosion not only reduces the load-bearing capacity of the cables but also causes instability in the bridge structure, and can even lead to serious safety accidents. Therefore, accurately and efficiently detecting the corrosion of cable wires and promptly identifying potential hazards is of great significance for ensuring the safe operation of bridges. Robotic devices for detecting the corrosion of bridge cable wires were developed to meet this need. They can conduct comprehensive and accurate inspections of cable wires without affecting the normal use of the bridge, providing reliable data support for bridge maintenance and management.
[0003] Existing robotic devices for detecting the corrosion of bridge cable wires mainly employ integrated or complex modular designs in terms of mechanical structure and technical principles. Some devices form a stable detection structure through the close cooperation of multiple components, using motors to drive the robot's movement on the cable. In terms of detection technology, they mostly utilize principles such as electromagnetic flaw detection and visual inspection to detect the surface and internal corrosion of the cable wires. For example, high-definition cameras are installed on the robot to acquire images of the cable surface, and then image processing algorithms are used to analyze the degree of corrosion; or electromagnetic induction is used to detect the corrosion and damage of the internal steel wires of the cable. These existing technologies can detect the corrosion of cable wires to a certain extent, but they have shortcomings in terms of device installation and assembly.
[0004] However, existing robotic devices for detecting the corrosion of bridge cable wires have significant problems during assembly. Due to their unreasonable structural design, assembly often requires the use of multiple tools such as screwdrivers and wrenches, following complex installation steps. When the device malfunctions and needs repair or replacement of parts, disassembly with multiple tools is also necessary. The process is cumbersome and time-consuming, which not only increases the workload and labor intensity of maintenance personnel but also leads to low maintenance efficiency and difficulty in quickly completing the inspection of cable wires. This seriously affects the timeliness and effectiveness of bridge maintenance and fails to meet the needs of convenient disassembly and assembly in actual engineering projects. Therefore, a robotic device for detecting the corrosion of bridge cable wires is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a robotic device for detecting the corrosion of steel wires in bridge cables, which aims to improve the problem that existing technologies require multiple tools to be used when assembling the device and cannot be easily disassembled.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A robotic device for detecting the corrosion of steel wires in bridge cables includes multiple detectors. A transverse connecting plate is fixedly connected to the outer wall of one detector, and a longitudinal connecting plate is fixedly connected to the outer wall of another detector. A connecting component is provided on the outer wall of the transverse connecting plate, a conveying wheel is provided on the outer wall of the transverse connecting plate, and an adjustment component is provided inside the transverse connecting plate.
[0008] The connecting assembly includes a first connector and a second connector. The outer wall of the first connector is fixedly connected to the outer wall of the transverse connecting plate. The outer wall of the second connector is fixedly connected to the second connector. A limiting groove is provided inside the first connector. A movable disk is slidably connected inside the first connector. A locking post is fixedly connected to the outer wall of the movable disk. The outer wall of the locking post is slidably connected inside the second connector. A push rod is fixedly connected to the outer wall of the movable disk. The outer wall of the push rod is slidably connected inside the limiting groove. A reset assembly is provided inside the first connector.
[0009] As a further description of the above technical solution:
[0010] The reset assembly is equipped with a spring, one end of which is fixedly connected to the outer wall of the movable disc, and the other end of which is fixedly connected to the inner wall of the connector.
[0011] As a further description of the above technical solution:
[0012] The adjustment assembly includes multiple telescopic plates. The outer wall of the telescopic plate is slidably connected to the inside of the transverse connecting plate. The outer wall of the telescopic plate is fixedly connected to the outer wall of the connector. A sliding groove is provided inside the telescopic plate.
[0013] As a further description of the above technical solution:
[0014] A rack is fixedly connected to the outer wall of the telescopic plate, and the outer wall of the rack is slidably connected to the groove opened inside the other telescopic plate.
[0015] As a further description of the above technical solution:
[0016] A transmission rod is rotatably connected inside the transverse connecting plate, and a gear is fixedly connected to the outer wall of the transmission rod, the gear meshing with the rack.
[0017] As a further description of the above technical solution:
[0018] A fixing ring is fixedly connected to the top of the horizontal connecting plate, and a slot is provided inside the fixing ring.
[0019] As a further description of the above technical solution:
[0020] The transmission rod is internally connected to a limiting ellipse, the top of which is fixedly connected to a connecting column. A retaining plate is fixedly connected to the outer wall of the connecting column, and the outer wall of the retaining plate is slidably connected to the slot. A knob is fixedly connected to the top of the connecting column.
[0021] As a further description of the above technical solution:
[0022] A second spring is fitted on the outer wall of the connecting column. The top of the second spring is fixedly connected to the inner wall of the transmission rod, and the bottom of the second spring is fixedly connected to the top of the limiting ellipse.
[0023] This utility model has the following beneficial effects:
[0024] 1. In this utility model, the locking column achieves its movement function by pushing the push rod. When the push rod is pushed, the push rod drives the moving disc and the first spring, and in conjunction with the limiting groove, the locking column slides inside the second connector, thereby facilitating the disassembly and assembly of the device, making it convenient for maintenance, replacement and movement. This solves the problem that existing devices require multiple tools to be used for assembly and cannot be easily disassembled, thus improving the ease of device assembly.
[0025] 2. In this utility model, the telescopic plate achieves its movement function by rotating the knob. When the knob is rotated, the knob drives the limiting ellipse, gear and rack and cooperates with the clamping plate to realize the rotation of the telescopic plate inside the connecting plate, thereby conveniently adjusting the specifications to adapt to different specifications of cable wires. This solves the problem of not being able to conveniently adjust according to the specifications of cable wires and improves the applicability of the device measurement. Attached Figure Description
[0026] Figure 1 This is a three-dimensional schematic diagram of the robot device for detecting the corrosion of bridge cable steel wires proposed in this utility model;
[0027] Figure 2 This is a schematic diagram of the second connecting component of the robot device for detecting the corrosion status of bridge cable steel wires proposed in this utility model;
[0028] Figure 3 This is a schematic diagram of the internal structure of the connector of the robot device for detecting the corrosion of steel wires in bridge cables proposed in this utility model;
[0029] Figure 4This is a schematic diagram of the rotary knob of the robot device for detecting the corrosion of bridge cable steel wires proposed in this utility model;
[0030] Figure 5 This is a schematic diagram of the internal structure of the transverse connecting plate of the robot device for detecting the corrosion of bridge cable steel wires proposed in this utility model;
[0031] Figure 6 This is a schematic diagram of the transmission rod of the robot device for detecting the corrosion of steel wires in bridge cables proposed in this utility model.
[0032] Legend:
[0033] 1. Detector; 2. Horizontal connecting plate; 3. Longitudinal connecting plate; 4. Conveyor wheel; 5. Connector 1; 6. Connector 2; 7. Locking post; 8. Moving disc; 9. Push rod; 10. Spring 1; 11. Limiting groove; 12. Knob; 13. Telescopic plate; 14. Slide groove; 15. Rack; 16. Gear; 17. Locking groove; 18. Locking plate; 19. Fixing ring; 20. Connecting post; 21. Spring 2; 22. Limiting ellipse; 23. Transmission rod. Detailed Implementation
[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0035] Reference Figures 1-3 This utility model provides an embodiment of a robotic device for detecting the corrosion of bridge cable wires, comprising multiple detectors 1. These detectors 1 employ advanced detection technology combining electromagnetic induction and visual recognition, enabling accurate detection of the corrosion status of the cable wires. A transverse connecting plate 2 is fixedly connected to the outer wall of detector 1 using a high-strength welding process. Similarly, a longitudinal connecting plate 3 is fixedly connected to the outer wall of another detector 1 using a robust welding method. The outer wall of the transverse connecting plate 2 is equipped with connecting components and a conveyor wheel 4. The conveyor wheel 4 is made of rubber with anti-slip textures, increasing friction with the cable wires and making the device more stable when moving on the cable wires. An adjustment component is located inside the transverse connecting plate 2.
[0036] The connecting assembly includes connector 5 and connector 6. Connector 5 is fixedly connected to the outer wall of the transverse connecting plate 2. Connector 6 is fixedly connected to the outer wall of connector 6. Connector 5 has a limiting groove 11 inside. The limiting groove 11 is a rectangular groove structure used to limit the sliding of push rod 9 and ensure the accuracy of its movement trajectory. Connector 5 has a movable disk 8 slidably connected inside. The outer wall of the movable disk 8 is fixedly connected to a locking post 7. The outer wall of the locking post 7 can slide smoothly inside connector 6, thereby realizing the connection and separation of connector 5 and connector 6. The outer wall of the locking post 7 is slidably connected inside connector 6. The outer wall of the movable disk 8 is fixedly connected to push rod 9. The outer wall of the push rod 9 is slidably connected inside the limiting groove 11. Connector 5 has a reset assembly inside. The reset assembly has a spring 10 inside. One end of spring 10 is fixedly connected to the outer wall of the movable disk 8, and the other end of spring 10 is fixedly connected to the inner wall of connector 5.
[0037] Specifically, when inspecting the corrosion level of bridge cable wires, the transverse connecting plate 2 is precisely placed on top of the cable wire, ensuring that the bottom conveyor wheel 4 is in close contact with the cable. Good contact of the bottom conveyor wheel 4 is fundamental for the device to move smoothly on the cable wire, providing power for comprehensive inspection. Next, the push rod 9 is pressed, allowing it to slide inside the limiting groove 11. At this time, the push rod 9 drives the moving disc 8 to slide inside the connector 5, simultaneously compressing the spring 10. As the spring 10 is compressed, the locking pin 7 is smoothly retracted into the connector 5. Then, the longitudinal connecting plate 3 is placed on both sides of the transverse connecting plate 2, and the connector 2 6 is carefully aligned with the connector 5. The push rod 9 is then released, and the rebound force of the spring 10 causes the locking pin 7 to quickly return to its original position and slide into the connector 2 6. In this way, the transverse connecting plate 2 and the longitudinal connecting plate 3 are conveniently connected. The device is placed on the outer wall of the cable, and comprehensive corrosion inspection can be carried out through the detector 1.
[0038] Reference Figures 3-6The adjustment assembly includes multiple telescopic plates 13, which are made of high-strength aluminum alloy. This material is lightweight and high-strength, facilitating the overall movement of the device while ensuring structural stability. The outer wall of the telescopic plate 13 is finely polished, allowing it to slide smoothly within the transverse connecting plate 2. The outer wall of the telescopic plate 13 is fixedly connected to the outer wall of the connector 5 by welding, ensuring a strong connection and coordinated operation. The outer wall of the telescopic plate 13 is slidably connected to the inside of the transverse connecting plate 2, and fixedly connected to the outer wall of the connector 5. A groove 14 is provided inside the telescopic plate 13, and a rack 15 is fixedly connected to the outer wall of the telescopic plate 13. The outer wall of the rack 15 is slidably connected to the groove 14 inside another telescopic plate 13. A transmission rod 23 is rotatably connected inside the transverse connecting plate 2. The transmission rod 23 is made of stainless steel with a chrome-plated surface, which is not only aesthetically pleasing but also improves corrosion resistance. A gear 16 is fixedly connected to the outer wall of the transmission rod 23 by a key connection, and the gear 16 meshes with the rack 15. When the transmission rod 23 rotates, the gear 16 rotates accordingly, which in turn drives the rack 15 that meshes with it to move, thereby realizing the extension and retraction of the telescopic plate 13. The gear 16 is fixedly connected to the outer wall of the transmission rod 23, and the gear 16 meshes with the rack 15. A fixing ring 19 is fixedly connected to the top of the transverse connecting plate 2. A slot 17 is opened inside the fixing ring 19. A limiting ellipse 22 is slidably connected inside the transmission rod 23. A connecting post 20 is fixedly connected to the top of the limiting ellipse 22. A locking plate 18 is fixedly connected to the outer wall of the connecting post 20. The outer wall of the locking plate 18 is slidably connected inside the slot 17. A knob 12 is fixedly connected to the top of the connecting post 20. The knob 12 is made of plastic and has anti-slip texture on the surface, which is convenient for the operator to hold and rotate. A second spring 21 is sleeved on the outer wall of the connecting post 20. The top of the second spring 21 is fixedly connected to the inner wall of the transmission rod 23, and the bottom of the second spring 21 is fixedly connected to the top of the limiting ellipse 22.
[0039] Specifically, when inspecting the corrosion of bridge cable wires of different specifications, the inspection device needs to be flexibly adjusted according to the specific specifications of the wire. First, the operator pulls the knob 12 according to the specifications of the wire. Pulling the knob 12 will cause the connecting column 20 to rise and fall. The rise and fall of the connecting column 20 is crucial, as it further causes the limiting ellipse 22 to slide inside the transmission rod 23. During this process, the spring 21 is compressed, and at the same time, the connecting column 20 causes the locking plate 18 to slide out from the locking groove 17, releasing the fixed state of the telescopic plate 13. Then, the operator turns the knob 12, which causes the limiting ellipse 22 to rotate, thereby causing the transmission rod 23 to rotate. The rotation of the transmission rod 23 causes the gear 16 to rotate. Since the gear 16 meshes with the rack 15, the rotation of the gear 16 causes the rack 15 to move. As the rack 15 moves, the telescopic plate 13 extends smoothly, realizing the adjustment of the device specifications to accommodate different specifications of cable wires. When the telescopic plate 13 is adjusted to the appropriate position, the operator releases the knob 12. At this time, the rebound force of spring 21 drives the limiting ellipse 22 back to its original position, and the clamping plate 18 also returns to the clamping groove 17 to engage, thereby keeping the device stable and laying the foundation for subsequent accurate detection of the degree of corrosion of different specifications of cable steel wire.
[0040] Working principle: When detecting the degree of corrosion of bridge cable wires, the transverse connecting plate 2 is placed on top of the cable wire, so that the bottom conveyor wheel 4 contacts the cable for subsequent movement. Then, the push rod 9 is pressed to slide inside the limiting groove 11. Then, the push rod 9 drives the moving disc 8 to slide inside the connector 5, compressing the spring 10 and retracting the locking post 7 into the connector 5. Then, the longitudinal connecting plate 3 is placed on both sides of the transverse connecting plate 2, and the connector 6 is aligned with the connector 5. Then, the push rod 9 is released, and the spring 10 rebounds to drive the locking post 7 back to its original position and slide into the connector 6, thus conveniently connecting the transverse connecting plate 2 and the longitudinal connecting plate 3, and placing it on the outer wall of the cable for detection by the detector 1.
[0041] In addition, when testing steel wires of different specifications, the knob 12 is pulled according to its specifications. The knob 12 drives the connecting column 20 to rise and fall. Then, the connecting column 20 drives the limiting ellipse 22 to slide inside the transmission rod 23, compressing the spring 21. At the same time, the connecting column 20 drives the locking plate 18 to slide out from the slot 17. Then, the knob 12 is turned, which drives the limiting ellipse 22 to rotate, thereby rotating the transmission rod 23. Then, the transmission rod 23 drives the gear 16 to rotate, and drives the meshing rack 15 to move, so that the telescopic plate 13 can be extended. Different specifications can be adjusted to the appropriate position. The knob 12 is then released. The spring 21 rebounds, driving the limiting ellipse 22 back to its original position, so that the locking plate 18 returns to the slot 17 to engage and maintain stability.
[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A robotic device for detecting corrosion of bridge cable wires, comprising multiple detectors (1), characterized in that: The detector (1) is fixedly connected to a transverse connecting plate (2) on its outer wall, and the other detector (1) is fixedly connected to a longitudinal connecting plate (3) on its outer wall. The transverse connecting plate (2) is provided with a connecting component on its outer wall, and a conveying wheel (4) is provided on its outer wall. An adjustment component is provided inside the transverse connecting plate (2). The connecting assembly includes a first connector (5) and a second connector (6). The outer wall of the first connector (5) is fixedly connected to the outer wall of the transverse connecting plate (2). The outer wall of the second connector (6) is fixedly connected to the second connector (6). A limiting groove (11) is provided inside the first connector (5). A movable disc (8) is slidably connected inside the first connector (5). A locking post (7) is fixedly connected to the outer wall of the movable disc (8). The outer wall of the locking post (7) is slidably connected inside the second connector (6). A push rod (9) is fixedly connected to the outer wall of the movable disc (8). The outer wall of the push rod (9) is slidably connected inside the limiting groove (11). A reset assembly is provided inside the first connector (5).
2. The robotic device for detecting corrosion of bridge cable wires according to claim 1, characterized in that: The reset assembly is provided with a spring (10) inside. One end of the spring (10) is fixedly connected to the outer wall of the movable disk (8), and the other end of the spring (10) is fixedly connected to the inner wall of the connector (5).
3. The robotic device for detecting corrosion of bridge cable wires according to claim 2, characterized in that: The adjustment assembly includes multiple telescopic plates (13), the outer wall of the telescopic plate (13) is slidably connected to the inside of the transverse connecting plate (2), the outer wall of the telescopic plate (13) is fixedly connected to the outer wall of the connector (5), and a sliding groove (14) is provided inside the telescopic plate (13).
4. The robotic device for detecting corrosion of bridge cable wires according to claim 3, characterized in that: A rack (15) is fixedly connected to the outer wall of the telescopic plate (13), and the outer wall of the rack (15) is slidably connected to the groove (14) opened inside another telescopic plate (13).
5. The robotic device for detecting corrosion of bridge cable wires according to claim 4, characterized in that: The transverse connecting plate (2) is rotatably connected to a transmission rod (23), and a gear (16) is fixedly connected to the outer wall of the transmission rod (23). The gear (16) meshes with the rack (15).
6. The robotic device for detecting corrosion of bridge cable wires according to claim 5, characterized in that: The top of the transverse connecting plate (2) is fixedly connected to a fixing ring (19), and a slot (17) is provided inside the fixing ring (19).
7. The robotic device for detecting corrosion of bridge cable wires according to claim 6, characterized in that: The transmission rod (23) is internally connected to a limiting ellipse (22), the top of the limiting ellipse (22) is fixedly connected to a connecting column (20), the outer wall of the connecting column (20) is fixedly connected to a card plate (18), the outer wall of the card plate (18) is slidably connected to the inside of the card slot (17), and the top of the connecting column (20) is fixedly connected to a knob (12).
8. The robotic device for detecting corrosion of bridge cable wires according to claim 7, characterized in that: The outer wall of the connecting column (20) is fitted with a second spring (21), the top of the second spring (21) is fixedly connected to the inner wall of the transmission rod (23), and the bottom of the second spring (21) is fixedly connected to the top of the limiting ellipse (22).
Citation Information
Cited By
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