Bridge cable inspection device

Abstract

This utility model relates to the field of bridge inspection technology and discloses a bridge cable inspection device, including a digital display control screen and a base. Support rods are fixedly connected to the upper end of the base near its four corners. Portable positioning components are provided at the upper ends of multiple support rods. Adjustable movable detection components are provided on both sides of the upper end of the base. Each adjustable movable detection component includes two fixed seats, with movable wheels rotatably connected to the upper ends of the two fixed seats near their front and rear ends. Multiple movable slots are formed on the upper end of the base, and a bidirectional threaded rod is rotatably connected between the inner walls of the two sides of the movable slot located in the middle. In this utility model, the adjustable movable detection components allow the device to be applied to cables of various specifications and can automatically complete cable inspection. Combined with the portable positioning components, quick assembly of the positioning rollers and movable wheels can be achieved, further improving ease of use.

Description

Technical Field

[0001] This utility model relates to the field of bridge inspection technology, and in particular to a bridge cable inspection device. Background Technology

[0002] As a critical load-bearing component of large bridges such as suspension bridges and cable-stayed bridges, the structural safety of bridge cables directly affects the service life and traffic safety of the bridge. With the rapid development of transportation infrastructure construction, the number of bridges in service continues to increase, making the need for regular inspection and maintenance of cables increasingly urgent. Currently, cable inspection mainly relies on non-contact inspection equipment such as infrared thermal imagers, which detect abnormal surface temperatures of the cables to identify potential hazards such as internal damage, stress concentration, or corrosion, thereby achieving an accurate assessment of the structural health of the bridge.

[0003] However, existing bridge cable inspection devices still suffer from numerous technical bottlenecks. On the one hand, traditional devices often employ fixed structures, making it difficult to adapt to cables of different diameters and installation angles. Frequent replacement of parts and adjustments are required during installation, resulting in low inspection efficiency and complex operation. On the other hand, the inspection process typically requires manual handling of the equipment along the cable, posing safety hazards due to working at heights and significantly impacting inspection accuracy due to human factors, making it difficult to guarantee data stability and reliability. Therefore, those skilled in the art have provided a bridge cable inspection device to address the problems mentioned in the background section. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a bridge cable inspection device. This device features an adjustable movable detection component that allows for the movement and adjustment of the movable wheel and positioning roller, making it suitable for various cable specifications. Furthermore, a portable positioning component enables rapid assembly of the positioning roller and movable wheel. Finally, by utilizing a worm gear drive system and an infrared thermal imager, cable inspection can be automatically completed without manual handheld operation, eliminating safety hazards associated with working at heights.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a bridge cable maintenance device, comprising a digital display control screen and a base, wherein support rods are fixedly connected to the upper end of the base near the four corners, and portable positioning components are provided at the upper ends of the multiple support rods, and adjustable movable detection components are provided on both sides of the upper end of the base.

[0006] The adjustable moving detection component includes two fixed seats. The upper ends of the two fixed seats are rotatably connected to moving wheels at the front and rear positions. The upper end of the base has multiple moving grooves. A bidirectional threaded rod is rotatably connected between the inner walls of the two sides of the moving groove located in the middle. Moving sliders are threaded onto both sides of the outer wall of the bidirectional threaded rod. Both moving sliders are fixedly connected to the corresponding fixed seats. A motor is fixedly installed at the front end of one of the fixed seats. A drive groove is opened inside the fixed seat near the motor. An adjustment box is fixedly connected to the middle of one side of the base. An infrared thermal imager is fixedly installed at the middle of the upper end of the fixed seat away from the motor.

[0007] Through the above technical solution, the adjustable moving detection component allows for the movement and adjustment of the moving wheel, making the device applicable to various cable specifications. The operation can be completed simply by turning the corresponding knob, which is simple, quick, and more flexible. Finally, with the help of a worm gear drive system and an infrared thermal imager, cable detection can be completed automatically without manual handheld operation, eliminating safety hazards in high-altitude operations.

[0008] Furthermore, the portable positioning assembly includes two connecting plates and two connecting frames. Both connecting plates are fixedly connected to corresponding support rods. A fixing plate is fixedly connected to the upper end of each of the two connecting frames. A connecting groove is opened at the lower end of each of the two connecting frames. Both connecting plates are engaged within their respective connecting grooves. A reset groove is opened on the opposite side of each of the two connecting plates. A spring block is fixedly connected to the inner wall of one side of each of the two reset grooves. A fixing groove is opened on the inner wall of one side of each of the two connecting grooves. Both spring blocks are engaged within their respective fixing grooves. A lifting threaded rod is rotatably connected to the lower center of the fixing plate. A threaded sleeve is threaded onto the outer wall of the lifting threaded rod. A lifting frame is fixedly connected to the lower end of the threaded sleeve. Positioning rollers are rotatably connected to the lower end of the lifting frame near the front and rear. A positioning telescopic rod is fixedly connected between the lifting frame and the opposite end of the fixing plate.

[0009] By using the above technical solution, the lifting and lowering adjustment of the positioning rollers, combined with the movement adjustment of the moving wheels, can improve the applicability of the device. During installation, simply insert the connecting plate into the connecting groove, and when the spring-loaded block encounters the fixed groove, it pops out and locks into it, thus completing the installation and fixing of the fixing plate. During subsequent disassembly, simply press the spring-loaded block to release it from the fixed groove, thereby releasing the fixing restriction on the connecting frame and allowing the fixing plate to be removed.

[0010] Furthermore, a second wireless transmitter is fixedly mounted on the upper end of the infrared thermal imager, and a first controller is fixedly mounted on the upper center of the mounting base near the motor. A first wireless transmitter, a second wireless receiver, and a second controller are fixedly mounted on the upper end of the digital display control screen. The digital display control screen, the second controller, the first wireless transmitter, and the second wireless receiver are all electrically connected. A first wireless receiver is fixedly mounted on the upper end of the motor. The motor, the first controller, the first wireless receiver, and the first wireless transmitter are all electrically connected. The infrared thermal imager, the first controller, the second wireless transmitter, and the second wireless receiver are all electrically connected. A storage battery is fixedly mounted on the lower end of the base. The motor, the infrared thermal imager, the first wireless receiver, the first controller, and the second wireless transmitter are all electrically connected to the storage battery.

[0011] Through the above technical solution, a start signal is sent via a digital display control screen, a second controller, and a first wireless transmitter, and received by a first wireless receiver. The first controller controls the start motor. After detection by an infrared thermal imager, relevant information is transmitted via the first controller and the second wireless transmitter, and then received and displayed by the second wireless receiver, the second controller, and the digital display control screen. A battery provides power to the motor, the infrared thermal imager, the first wireless receiver, the first controller, and the second wireless transmitter.

[0012] Furthermore, positioning rods are fixedly connected between the inner walls of the two movable slots located at the front and rear positions, and positioning sliders are slidably sleeved on both sides of the outer walls of the two positioning rods. The multiple positioning sliders are fixedly connected to the corresponding fixed seats.

[0013] Through the above technical solution, the positioning slider can be provided so that when the bidirectional threaded rod rotates, the moving slider can move stably with the corresponding fixed seat.

[0014] Furthermore, a first worm gear is rotatably connected between the front and rear inner walls of the regulating box, and a first worm wheel is rotatably connected between the two inner walls of the regulating box. The first worm gear and the first worm wheel mesh with each other. A second knob is rotatably connected to the front end of the regulating box. The front end of the first worm gear passes through the regulating box and is fixedly connected to the second knob. One end of the bidirectional threaded rod passes through the base and the regulating box and is fixedly connected to the first worm wheel.

[0015] Through the above technical solution, the first worm can be rotated by rotating the second knob, and the bidirectional threaded rod can be rotated via the provided first worm wheel.

[0016] Furthermore, a second worm is rotatably connected between the front and rear inner walls of the drive groove, and a second worm wheel is rotatably connected between the upper and lower inner walls of the drive groove at the front and rear positions. The second worm meshes with the two second worm wheels. The output end of the motor passes through the corresponding fixed seat and is fixedly connected to the second worm. The lower ends of the two moving wheels near the motor pass through the corresponding fixed seat and are fixedly connected to the corresponding second worm wheel.

[0017] Through the above technical solution, by controlling the starter motor, the second worm gear is rotated, and the corresponding moving wheel can be rotated via the provided second worm wheel.

[0018] Furthermore, a first knob is rotatably connected to the upper middle part of the fixed plate, and the upper end of the lifting threaded rod passes through the fixed plate and is fixedly connected to the corresponding first knob;

[0019] The above technical solution involves providing a first knob and fixing it to the lifting threaded rod, thereby allowing the lifting threaded rod to rotate by rotating the first knob.

[0020] Furthermore, a cable body is provided between the plurality of the moving wheels;

[0021] By using the above technical solution, the cable body is placed between multiple moving wheels. After the moving wheels are controlled to move and come into close contact with the cable body, the detection part can move on the cable body through the friction between the moving wheels and the cable body.

[0022] This utility model has the following beneficial effects:

[0023] 1. The bridge cable inspection device proposed in this utility model, through the adjustable movable detection component, allows for the movement and adjustment of the movable wheel and positioning roller, thus making the device applicable to various specifications of cables. Related operations can be completed simply by rotating the corresponding knob, making it simple, quick, and highly flexible. Furthermore, the included portable positioning component enables rapid assembly of the positioning roller and movable wheel, further improving ease of use. Finally, by utilizing a worm gear drive system and an infrared thermal imager, cable inspection can be automatically completed without manual handheld operation, eliminating safety hazards associated with working at heights. Attached Figure Description

[0024] Figure 1 This is an isometric schematic diagram of a bridge cable maintenance device proposed in this utility model;

[0025] Figure 2 This is a partial orthosectional view of a bridge cable maintenance device proposed in this utility model;

[0026] Figure 3 for Figure 2Enlarged structural diagram at point A;

[0027] Figure 4 This is a partial top view of a bridge cable maintenance device proposed in this utility model;

[0028] Figure 5 This is a partial side sectional view of a bridge cable maintenance device proposed in this utility model.

[0029] Legend:

[0030] 1. Digital display control panel; 2. Base; 3. Adjustable moving detection component; 4. Support rod; 5. Fixing plate; 6. Portable positioning component; 7. Fixing seat; 8. Moving wheel; 9. Moving groove; 10. Bidirectional threaded rod; 11. Moving slider; 12. Positioning rod; 13. Positioning slider; 14. Adjustment box; 15. First worm gear; 16. First worm; 17. Drive groove; 18. Second worm gear; 19. Second worm; 20. Motor; 21. Infrared thermal imager; 22. Connecting plate; 23. 24. Connecting frame; 25. Connecting groove; 26. Reset groove; 27. Spring clip; 28. Fixing groove; 29. ​​Lifting threaded rod; 30. Threaded sleeve; 31. Lifting frame; 32. Positioning roller; 33. Positioning telescopic rod; 34. First knob; 35. First wireless transmitter; 36. First wireless receiver; 37. Second wireless receiver; 38. First controller; 39. Second controller; 40. Battery; 41. Second knob; 42. Cable body. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Reference Figure 1-5 The present invention provides a specific embodiment of a bridge cable maintenance device, which includes a digital display control screen 1 and a base 2. Support rods 4 are fixedly connected to the upper end of the base 2 near the four corners. Portable positioning components 6 are provided at the upper ends of multiple support rods 4. Adjustable movable detection components 3 are provided on both sides of the upper end of the base 2.

[0033] The adjustable moving detection assembly 3 includes two fixed seats 7. Each fixed seat 7 has a movable wheel 8 rotatably connected to its upper end near the front and rear. The upper end of the base 2 has multiple moving grooves 9. A bidirectional threaded rod 10 is rotatably connected between the inner walls of the two sides of the moving groove 9 located in the middle. Moving sliders 11 are threaded onto both sides of the outer wall of the bidirectional threaded rod 10. Each moving slider 11 is fixedly connected to its corresponding fixed seat 7. Positioning rods 12 are fixedly connected between the inner walls of the two moving grooves 9 located near the front and rear. Positioning sliders 13 are slidably connected to both sides of the outer wall of the two positioning rods 12. Multiple positioning sliders 13 are fixedly connected to their corresponding fixed seats 7. Through the provided positioning sliders 13, when the bidirectional threaded rod 10 rotates, the moving sliders 11 can be moved... The base 2 moves stably relative to the fixed base 7. A motor 20 is fixedly mounted at the front end of one of the fixed bases 7. A drive groove 17 is provided inside the fixed base 7 near the motor 20. A second worm gear 19 is rotatably connected between the front and rear inner walls of the drive groove 17. Second worm wheels 18 are rotatably connected between the upper and lower inner walls of the drive groove 17 near the front and rear. The second worm gear 19 meshes with the two second worm wheels 18. The output end of the motor 20 passes through the corresponding fixed base 7 and is fixedly connected to the second worm gear 19. The lower ends of the two moving wheels 8 near the motor 20 pass through the corresponding fixed base 7 and are fixedly connected to the corresponding second worm wheels 18. By controlling the start of the motor 20, the second worm gear 19 rotates, and the corresponding moving wheels 8 rotate via the provided second worm wheels 18. An adjustment box 14 is fixedly connected to the middle of the side. A first worm gear 16 is rotatably connected between the front and rear inner walls of the adjustment box 14. A first worm wheel 15 is rotatably connected between the two inner walls of the adjustment box 14. The first worm gear 16 and the first worm wheel 15 mesh. A second knob 41 is rotatably connected to the front end of the adjustment box 14. The front end of the first worm gear 16 passes through the adjustment box 14 and is fixedly connected to the second knob 41. One end of a bidirectional threaded rod 10 passes through the base 2 and the adjustment box 14 and is fixedly connected to the first worm wheel 15. Rotating the second knob 41 causes the first worm gear 16 to rotate, which in turn causes the bidirectional threaded rod 10 to rotate via the first worm wheel 15. An infrared thermal imager 21 is fixedly installed at the middle of the upper end of the fixed base 7 away from the motor 20. The upper end of the infrared thermal imager 21 is fixedly installed... A second wireless transmitter 36 is provided. A first controller 38 is fixedly installed at the upper center of the mounting base 7 near the motor 20. A first wireless transmitter 34, a second wireless receiver 37, and a second controller 39 are fixedly installed at the upper end of the digital display control screen 1. The digital display control screen 1, the second controller 39, the first wireless transmitter 34, and the second wireless receiver 37 are all electrically connected. A first wireless receiver 35 is fixedly installed at the upper end of the motor 20. The motor 20, the first controller 38, the first wireless receiver 35, and the first wireless transmitter 34 are all electrically connected. The infrared thermal imager 21, the first controller 38, the second wireless transmitter 36, and the second wireless receiver 37 are all electrically connected. A storage battery 40 is fixedly installed at the lower end of the base 2.Motor 20, infrared thermal imager 21, first wireless receiver 35, first controller 38, and second wireless transmitter 36 are all electrically connected to battery 40. A start signal is emitted via digital display control panel 1, second controller 39, and first wireless transmitter 34, and received by the first wireless receiver 35. In conjunction with the first controller 38, motor 20 is started. After detection by the infrared thermal imager 21, relevant information is transmitted via the first controller 38 and second wireless transmitter 36, and then received and displayed via the second wireless receiver 37, second controller 39, and digital display control panel 1. Battery 40 provides power to motor 20, infrared thermal imager 21, first wireless receiver 35, first controller 38, and second wireless transmitter 36. The two wireless transmitters 36 provide power. Through the adjustable movable detection component 3, the movable wheels 8 can be moved and adjusted, making the device suitable for various cable specifications. Operation is simple and quick, requiring only the rotation of the corresponding knob, offering greater flexibility. Finally, with the aid of a worm gear drive system and an infrared thermal imager 21, cable detection can be automatically completed without manual handheld operation, eliminating safety hazards during high-altitude work. A cable body 42 is positioned between the multiple movable wheels 8. By placing the cable body 42 between the movable wheels 8, and controlling the movement of the movable wheels 8 to bring them into close contact with the cable body 42, the friction between the movable wheels 8 and the cable body 42 allows the detection area to move along the cable body 42.

[0034] The portable positioning component 6 includes two connecting plates 22 and two connecting brackets 23. Both connecting plates 22 are fixedly connected to corresponding support rods 4. A fixing plate 5 is fixedly connected to the upper end of each connecting bracket 23. A connecting groove 24 is provided at the lower end of each connecting bracket 23, and both connecting plates 22 are engaged within their respective connecting grooves 24. A reset groove 25 is provided on the opposite side of each connecting plate 22, and a spring latch 26 is fixedly connected to the inner wall of one side of each reset groove 25. A fixing groove 27 is provided on the inner wall of one side of each connecting groove 24, and both spring latches 26 are engaged within their respective fixing grooves 27. A lifting threaded rod 28 is rotatably connected to the lower center of the fixing plate 5, and a first knob 33 is rotatably connected to the upper center of the fixing plate 5. The upper end of the lifting threaded rod 28 passes through the fixing plate 5 and is fixedly connected to the corresponding first knob 33. The first knob 33 is used to fix the lifting threaded rod 28. The device is fixedly connected, and the lifting threaded rod 28 can be rotated by turning the first knob 33. The outer wall of the lifting threaded rod 28 is threaded with a threaded sleeve 29. The lower end of the threaded sleeve 29 is fixedly connected to the lifting frame 30. The lower end of the lifting frame 30 is rotatably connected to the front and rear of the front and rear of the front and rear of the rear end. The positioning telescopic rod 32 is fixedly connected between the lifting frame 30 and the opposite end of the fixed plate 5. By adjusting the lifting of the positioning roller 31 and the movement of the moving wheel 8, the applicability of the device can be improved. During installation, the connecting plate 22 is simply inserted into the connecting groove 24. When the spring block 26 encounters the fixed groove 27 through its own spring action, it pops out and locks into it, thus completing the installation and fixing of the fixed plate 5. During subsequent disassembly, the fixed plate 5 can be removed by pressing the spring block 26 to disengage it from the fixed groove 27.

[0035] Working Principle: In use, the cable to be tested is first placed between multiple movable wheels 8. Then, by rotating the second knob 41, the first worm gear 16 rotates, which in turn rotates the bidirectional threaded rod 10 via the first worm wheel 15. The movable wheels 8 on both sides move towards the cable via the movable slider 11 and the positioning slider 13, thus bringing them into close contact with the cable body 42. Next, the connecting plate 22 is inserted into the connecting groove 24, and the spring-loaded block 26 pops out and engages with the fixing groove 27, thus fixing the fixing plate 5 in place. At this point, rotating the first knob 33 rotates the lifting threaded rod 28, which, via the threaded sleeve 29 and the positioning telescopic rod 32, moves the lifting frame 30, carrying the positioning roller 31, downwards, bringing the positioning roller 31 into close contact with the cable body 42. This completes the installation of the testing part. Furthermore, by adjusting the movable wheels 8 and the positioning roller 31, this device can be used with cables of various specifications. Next, a start signal is sent via the digital display control screen 1, the second controller 39, and the first wireless transmitter 34, and received by the first wireless receiver 35. The first controller 38 controls the start motor 20, which in turn causes the second worm gear 19 to rotate. The second worm wheel 18 causes the corresponding moving wheel 8 to rotate. Through the friction between the moving wheel 8 and the cable body 42, the detection part can move on the cable body 42. During the movement, the infrared thermal imager 21 uses the thermal radiation difference of the object surface to capture the temperature anomalies of the cable body 42 caused by damage, stress concentration, or corrosion. The relevant information is transmitted via the first controller 38 and the second wireless transmitter 36, and then received and displayed by the second wireless receiver 37, the second controller 39, and the digital display control screen 1. The relevant detection operations can be completed without manual movement of the detection device, which brings great convenience to maintenance personnel. It is also simple to operate and easy to install.

[0036] 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 specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific 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 bridge cable inspection device comprising a digital control panel (1) and a base (2), characterized in that: The upper end of the base (2) is fixedly connected to the four corners with support rods (4), and the upper end of the multiple support rods (4) is provided with portable positioning components (6). The upper ends of the base (2) are provided with adjustable moving detection components (3). The adjustable moving detection component (3) includes two fixed seats (7). The upper ends of the two fixed seats (7) are rotatably connected to moving wheels (8) at the front and rear. The upper end of the base (2) is provided with multiple moving grooves (9). A bidirectional threaded rod (10) is rotatably connected between the inner walls of the two sides of the moving groove (9) located in the middle. The outer walls of the bidirectional threaded rod (10) are threaded with moving sliders (11). The two moving sliders (11) are fixedly connected to the corresponding fixed seats (7). A motor (20) is fixedly installed at the front end of one of the fixed seats (7). A drive groove (17) is opened inside the fixed seat (7) close to the motor (20). An adjustment box (14) is fixedly connected to the middle of one side of the base (2). An infrared thermal imager (21) is fixedly installed at the middle of the upper end of the fixed seat (7) away from the motor (20).

2. A bridge cable inspection device according to claim 1, characterised in that: The portable positioning component (6) includes two connecting plates (22) and two connecting brackets (23). Both connecting plates (22) are fixedly connected to corresponding support rods (4). A fixing plate (5) is fixedly connected to the upper end of each of the two connecting brackets (23). A connecting groove (24) is provided at the lower end of each of the two connecting brackets (23). Both connecting plates (22) are engaged within their respective connecting grooves (24). A reset groove (25) is provided on the opposite side of each of the two connecting plates (22). A spring clip (26) is fixedly connected to the inner wall of one side of each reset groove (25). A fixing slot (27) is provided on one side of the inner wall of the receiving groove (24). The two spring blocks (26) are engaged in the corresponding fixing slot (27). A lifting threaded rod (28) is rotatably connected to the middle of the lower end of the fixing plate (5). A threaded sleeve (29) is threaded onto the outer wall of the lifting threaded rod (28). A lifting frame (30) is fixedly connected to the lower end of the threaded sleeve (29). A positioning roller (31) is rotatably connected to the lower end of the lifting frame (30) near the front and rear. A positioning telescopic rod (32) is fixedly connected between the lifting frame (30) and the opposite end of the fixing plate (5).

3. A bridge cable inspection device according to claim 1, wherein: A second wireless transmitter (36) is fixedly installed at the upper end of the infrared thermal imager (21). A first controller (38) is fixedly installed at the middle of the upper end of the mounting base (7) near the motor (20). A first wireless transmitter (34), a second wireless receiver (37), and a second controller (39) are fixedly installed at the upper end of the digital display control screen (1). The digital display control screen (1), the second controller (39), the first wireless transmitter (34), and the second wireless receiver (37) are all electrically connected. A first wireless receiver is fixedly installed at the upper end of the motor (20). 35), the motor (20), the first controller (38), the first wireless receiver (35) and the first wireless transmitter (34) are all electrically connected, the infrared thermal imager (21), the first controller (38), the second wireless transmitter (36) and the second wireless receiver (37) are all electrically connected, the lower end of the base (2) is fixedly provided with a storage battery (40), and the motor (20), the infrared thermal imager (21), the first wireless receiver (35), the first controller (38) and the second wireless transmitter (36) are all electrically connected to the storage battery (40).

4. A bridge cable maintenance device according to claim 1, characterized in that: Positioning rods (12) are fixedly connected between the inner walls of the two movable slots (9) located at the front and rear. Positioning sliders (13) are slidably sleeved on both sides of the outer walls of the two positioning rods (12). The multiple positioning sliders (13) are fixedly connected to the corresponding fixed seats (7).

5. A bridge cable inspection device according to claim 1, characterized in that: A first worm gear (16) is rotatably connected between the front and rear inner walls of the regulating box (14), and a first worm wheel (15) is rotatably connected between the two inner walls of the regulating box (14). The first worm gear (16) and the first worm wheel (15) mesh together. A second knob (41) is rotatably connected to the front end of the regulating box (14). The front end of the first worm gear (16) passes through the regulating box (14) and is fixedly connected to the second knob (41). One end of the bidirectional threaded rod (10) passes through the base (2) and the regulating box (14) and is fixedly connected to the first worm wheel (15).

6. A bridge cable inspection device according to claim 1, characterized in that: A second worm (19) is rotatably connected between the front and rear inner walls of the drive groove (17). A second worm wheel (18) is rotatably connected between the upper and lower inner walls of the drive groove (17) at the front and rear. The second worm (19) meshes with the two second worm wheels (18). The output end of the motor (20) passes through the corresponding fixed seat (7) and is fixedly connected to the second worm (19). The lower ends of the two moving wheels (8) near the motor (20) pass through the corresponding fixed seat (7) and are fixedly connected to the corresponding second worm wheel (18).

7. A bridge cable inspection device as claimed in claim 2, characterised in that: The upper middle part of the fixed plate (5) is rotatably connected to a first knob (33), and the upper end of the lifting threaded rod (28) passes through the fixed plate (5) and is fixedly connected to the corresponding first knob (33).

8. A bridge cable inspection device according to claim 1, characterized in that: A cable body (42) is provided between the plurality of the moving wheels (8).

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