Crawling device facilitating cable-stayed bridge steel cable detection

Abstract

The utility model belongs to the technical field of bridge maintenance, and particularly relates to a climbing device convenient for cable-stayed bridge steel cable detection, which comprises a rope climbing mechanism and a positioning component connected to one end of the rope climbing mechanism, a plurality of rotating wheels are arranged in the rope climbing mechanism, the rotating wheels are connected with a motor I, and the motor I drives the rotating wheels to rotate and drives the device to climb on a steel cable. The positioning assembly comprises a sliding plate, a positioning piece and a connecting plate, an axially-arranged groove is formed in the connecting plate, the sliding plate is arranged in the groove in a sliding mode, a cavity for containing the positioning piece is formed between the connecting plate and the sliding plate, the sliding plate slides along the groove to open the cavity, and therefore the positioning piece in the cavity is released. According to the steel rope marking device, the positioning piece has elasticity, the positioning piece is placed in the cavity, the top plate and the cavity are compressed and stretched through the shapes of the positioning piece and the top plate, and when the sliding plate slides out, the positioning piece rebounds and pops out of the connecting plate to the surface of the steel rope for marking.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge maintenance, in particular to a crawling device which is convenient for detecting steel cables of a cable-stayed bridge. Background Art

[0002] During the long-term operation of cable-stayed bridges, the steel ropes may fail due to long-term stress. People need to regularly inspect the surface of the steel ropes to prevent sudden safety accidents.

[0003] At present, in the inspection of steel ropes, a rope climbing robot is often used to inspect the surface of the steel rope. The rope climbing robot carries a camera and crawls on the steel rope, and people remotely observe the surface condition of the steel rope. However, if there is a problem with the surface of the steel rope, people can only mark the problematic steel rope but cannot mark the specific location. Maintenance personnel need to use a crane to inspect the steel rope again to find the problematic location, which greatly increases the workload.

[0004] It is urgent to design a device that can mark a single location when encountering a problematic location during the rope climbing robot inspection process. When workers go up the steel rope for maintenance, there is no need for secondary inspection. Utility Model Content

[0005] In view of the technical problems existing in the background technology, the purpose of the utility model is to provide a crawling device which is convenient for the detection of cable-stayed bridge cables. During the detection process of the rope climbing robot, when encountering a problematic position, a single position can be marked, and when workers go up the steel rope for maintenance, no secondary detection is required.

[0006] In order to achieve the above purpose, the technical solution provided by the utility model is:

[0007] A crawling device for facilitating the inspection of steel cables of a cable-stayed bridge comprises a rope climbing mechanism and a positioning assembly connected to one end of the rope climbing mechanism, wherein a plurality of rotating wheels are arranged inside the rope climbing mechanism, the rotating wheels are connected to a motor I, the motor I drives the rotating wheels to rotate, and drives the device to crawl on the steel cables, the positioning assembly comprises a slide plate, a positioning piece and a connecting plate, an axially arranged groove is arranged inside the connecting plate, the slide plate is slidably arranged in the groove, a cavity for placing the positioning piece is arranged between the connecting plate and the slide plate, the slide plate can slide along the groove to open the cavity, thereby releasing the positioning piece in the cavity, so that the positioning piece pops out of the cavity and is tightly attached to the surface of the steel cable for positioning.

[0008] Preferably, the rope climbing mechanism includes an arc block I and an arc block II, and the arc block I and the arc block II are provided with a supporting block and a connecting block, a support is provided at one end of the supporting block, a rotating wheel is provided on the support, a connecting block is provided between the supporting blocks, a plurality of through holes are formed between the connecting block and the supporting blocks, a motor I is provided in the through holes, and convex plates are provided at both ends of the connecting block, and a plurality of threaded holes I are provided on the convex plates.

[0009] Preferably, a camera is provided at one end of the rope climbing mechanism, and a positioning assembly is provided at the other end of the arc block I.

[0010] Preferably, the groove passes through one end of the connecting plate to the inside, slide grooves are arranged on both sides of the connecting plate, sliders are arranged on both sides of the slide plate, the sliders extend into the slide grooves, and a top plate is arranged on the circumferential surface of the slide plate.

[0011] Preferably, a connecting rod is provided at one end of the skateboard, a motor II is provided on the connecting plate, a push rod is provided on the motor II, the push rod is fixedly connected to the connecting rod through the supporting plate, and the motor II drives the skateboard to move.

[0012] Preferably, the connecting plate is provided with an opening, and the opening penetrates into the cavity, a threaded hole II is provided at one end of the connecting plate, a screw rod is detachably provided in the threaded hole II, a spring is provided at one end of the screw rod, and a push plate is connected to one end of the spring.

[0013] The utility model has the following advantages and beneficial effects:

[0014] 1. In the utility model, the positioning piece itself is elastic and is placed in the cavity. The shape of the top plate and the cavity compresses and stretches it. When the slide plate slides out, the positioning piece rebounds and pops out from the connecting plate to the surface of the steel rope for marking.

[0015] 2. In the present invention, the camera and the motor II are electrically connected. When a problematic position is identified, the motor II works, the push rod drives the connecting rod, and then drives the slide plate to slide in the groove.

[0016] 3. In the utility model, the device is simple to manufacture and install, has low use and maintenance costs, and a long service life. The surface of the steel rope can be marked during climbing, and workers do not need to climb the rope for a second time to check, and can directly go to the marked position for repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional diagram of a crawling device provided by the utility model for facilitating the inspection of steel cables of a cable-stayed bridge;

[0018] Figure 2 A schematic diagram of the internal structure of an arc-shaped block of a crawling device for facilitating cable-stayed bridge cable detection provided by the utility model;

[0019] Figure 3 A schematic diagram of the internal structure of a connection plate of a crawling device for facilitating cable-stayed bridge cable detection provided by the utility model;

[0020] Figure 4 A schematic diagram of the connection of a slide plate of a crawling device for facilitating the detection of steel cables of a cable-stayed bridge provided by the utility model;

[0021] Figure 5A schematic diagram of the structure of a connection plate of a crawling device for facilitating cable-stayed bridge cable detection provided by the utility model;

[0022] Figure 6 A schematic diagram of the shape of a slide plate of a crawling device for facilitating cable detection of a cable-stayed bridge provided by the utility model;

[0023] Figure 7 A schematic diagram of the connection of a screw rod, a spring and a push plate of a crawling device for facilitating cable-stayed bridge cable detection provided by the utility model;

[0024] Figure 8 A schematic diagram of the compression shape change of a positioning piece of a crawling device for facilitating cable-stayed bridge cable detection provided by the utility model;

[0025] Icons: 1-arc block I, 2-arc block II, 21-connecting block, 22-support block, 23-support, 24-rotating wheel, 25-convex plate, 26-threaded hole I, 27-camera, 28-motor I, 3-connecting plate, 301-groove, 31-slide plate, 311-slider, 312-connecting rod, 32-slide groove, 33-top plate, 34-motor II, 341-push rod, 35-opening, 4-cavity, 41-threaded hole II, 5-screw, 51-spring, 52-push plate, 6-positioning piece. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Example

[0029] A crawling device for facilitating the inspection of cable-stayed bridge cables comprises a rope climbing mechanism and a positioning assembly connected to one end of the rope climbing mechanism, wherein a plurality of rotating wheels 24 are arranged inside the rope climbing mechanism, the rotating wheels 24 are connected to a motor Ⅰ28, the motor Ⅰ28 drives the rotating wheels 24 to rotate, and drives the device to crawl on the steel rope, the positioning assembly comprises a slide plate 31, a positioning piece 6 and a connecting plate 3, an axially arranged groove 301 is arranged inside the connecting plate 3, the slide plate 31 is slidably arranged in the groove 301, a cavity 4 for placing the positioning piece 6 is arranged between the connecting plate 3 and the slide plate 31, the slide plate 31 slides along the groove 301 to open the cavity 4, thereby releasing the positioning piece 6 in the cavity 4, so that the positioning piece 6 pops out of the cavity 4 and is tightly attached to the surface of the steel rope for positioning.

[0030] As a preferred embodiment of the present invention, specifically:

[0031] like Figure 1 , 2 As shown, the rope climbing mechanism is composed of an arc block Ⅰ1 and an arc block Ⅱ2. The arc block Ⅰ1 and the arc block Ⅱ2 have the same structure, and are both composed of a support block 22 and a connecting block 21. The lower end of the support block 22 is symmetrically provided with a support 23, and a rotating wheel 24 is rotatably provided on the support 23. A connecting block 21 is provided between the support blocks 22. A plurality of through holes are formed between the connecting block 21 and the support block 22. A motor Ⅰ28 is fixedly provided in the through holes for driving the rotating wheel 24 to rotate. Convex plates 25 are fixedly provided at both ends of the connecting block 21, and a plurality of threaded holes Ⅰ26 are provided on the convex plate 25. The support block 22, the connecting block 21 and the convex plate 25 are combined into a semi-arc shape. The two rope climbing mechanisms are fixed together by bolts. The rotating wheel 24 is close to the surface of the steel rope, and the driving motor Ⅰ28 rotates to make the device crawl on the steel rope.

[0032] like Figure 1 , 3, 4, 5, 6, and 8, a camera 27 is provided at one end of the rope climbing mechanism, which can remotely observe the surface of the steel rope, a positioning component is provided at the other end of the arc block Ⅰ1, the connecting plate 3 is arc-shaped, the groove 301 passes through one end of the connecting plate 3 to the inside, the size of the slide plate 31 is the same as the size of the groove 301, and the slide groove 32 is provided at the contact position on both sides of the slide plate 31 and the connecting plate 3, and sliders 311 are provided on both sides of the slide plate 31, and the sliders 311 extend into the slide groove 32, and the slide plate 31 can slide along the axial direction of the connecting plate 3 A top plate 33 is symmetrically arranged on the circumferential surface of the skateboard 31, and the top plate 33 protrudes in an arc shape. A connecting rod 312 is symmetrically arranged on the lower end of the skateboard 31. A motor II 34 is symmetrically arranged on the outer circumferential surface of the connecting plate 3. A push rod 341 is arranged on the motor II 34. The push rod 341 is fixedly connected to the connecting rod 312 through the support plate. The motor II 34 is electrically connected to the camera 27. When the motor II 34 is working, it drives the push rod 341 to extend out of the lower end of the connecting plate 3, and at the same time drives the connecting rod 312 to move, thereby causing the skateboard 31 to slide out of the groove 301.

[0033] like Figure 1 , 3 As shown in Figures 4, 5, 6, 7 and 8, a cavity 4 is provided between the connecting plate 3 and the slide plate 31. The cavity 4 is provided inside the connecting plate 3 and on the outer circumferential surface of the slide plate 31. An opening 35 is provided on the outer circumferential surface of the connecting plate 3. The opening 35 is provided at one end close to the motor II 34. The width of the opening 35 is smaller than the width of the cavity 4, and the opening 35 penetrates into the cavity 4. The positioning piece 6 is placed into the cavity 4 from the opening 35. Due to the small width of the opening 35, one end of the positioning piece 6 is placed first and then the other end. The positioning piece 6 is in the shape of an arc. The positioning piece 6 can be bent and then restored. After the positioning piece 6 enters the cavity 4, the top plate 33 and the cavity 4 compress and deform the positioning piece 6. A threaded hole II41 is provided at one end of the connecting plate 3. The threaded hole II41 is provided at an end close to the motor II34. A screw rod 5 is detachably provided in the threaded hole II41. The screw rod 5 extends into the cavity 4. A spring 51 is provided at one end of the screw 5. A push plate 52 is connected to one end of the spring 51. A number of positioning pieces 6 are placed in the cavity 4, and the screw rod 5 is screwed in. The spring 51 and the push plate 52 push the positioning piece 6 to slide in the cavity 4.

[0034] Working principle: Place arc block Ⅰ1 and arc block Ⅱ2 symmetrically, make the rotating wheel 24 close to the surface of the steel rope, screw bolts into threaded hole Ⅰ26 to fix arc block Ⅰ1 and arc block Ⅱ2, insert positioning piece 6 into opening 35, when both ends of positioning piece 6 enter cavity 4, top plate 33 stretches both ends of positioning piece 6, several positioning pieces 6 are placed in cavity 4, screw screw 5 into threaded hole Ⅱ41, spring 51 and push plate 52 push positioning piece 6 to the other end of cavity 4, drive motor Ⅰ28 The rotating wheel 24 rotates, and the device crawls along the direction of the steel rope. The camera 27 continuously detects the surface of the steel rope. When encountering a damaged surface, the driving motor II 34 and the push rod 341 drive the connecting rod 312 to move. The slide plate 31 extends from the bottom of the connecting plate 3, and the extended distance is the same as the width of a positioning piece 6. The compressed positioning piece 6 rebounds and falls from the cavity 4 on the surface of the steel rope to mark the damaged surface. When the worker repairs the steel rope, he can go directly to the positioning position for repair without secondary positioning.

[0035] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A crawling device for convenient cable-stayed bridge cable inspection, comprising a rope climbing mechanism and a positioning assembly connected to one end of the rope climbing mechanism, wherein a plurality of rotating wheels are arranged inside the rope climbing mechanism, and the rotating wheels are connected to a motor I, and the motor I drives the rotating wheels to rotate, thereby driving the device to crawl on the steel rope. It is characterized in that The positioning assembly includes a slide plate, a positioning piece and a connecting plate. An axially arranged groove is provided inside the connecting plate. The slide plate is slidably arranged in the groove. A cavity for placing the positioning piece is provided between the connecting plate and the slide plate. The slide plate can open the cavity by sliding along the groove, thereby releasing the positioning piece in the cavity, so that the positioning piece pops out of the cavity and is tightly attached to the surface of the steel rope for positioning.

2. A crawling device for facilitating cable-stayed bridge cable inspection according to claim 1, Features: The rope climbing mechanism includes an arc block I and an arc block II, and the arc block I and the arc block II are provided with a supporting block and a connecting block. A support is provided at one end of the supporting block, and a rotating wheel is provided on the support. A connecting block is provided between the supporting blocks. A plurality of through holes are formed between the connecting block and the supporting blocks, and a motor I is provided in the through holes. Convex plates are provided at both ends of the connecting block, and a plurality of threaded holes I are provided on the convex plates.

3. A crawling device for facilitating cable-stayed bridge cable inspection according to claim 2, Features: A camera is arranged at one end of the rope climbing mechanism, and a positioning component is arranged at the other end of the arc block I.

4. A crawling device for facilitating cable-stayed bridge cable inspection according to claim 2, Features: The groove passes through one end of the connecting plate to the inside, and sliding grooves are arranged on both sides of the connecting plate. Sliding blocks are arranged on both sides of the sliding plate, and the sliding blocks extend into the sliding grooves. A top plate is arranged on the circumferential surface of the sliding plate.

5. A crawling device for facilitating cable-stayed bridge cable inspection according to claim 4, Features: One end of the slide plate is provided with a connecting rod, the connecting plate is provided with a motor II, a push rod is provided on the motor II, the push rod is fixedly connected with the connecting rod through the supporting plate, and the motor II drives the slide plate to move.

6. A crawling device for facilitating cable-stayed bridge cable inspection according to claim 5, Features: The connecting plate is provided with an opening, and the opening penetrates into the cavity. A threaded hole II is provided at one end of the connecting plate. A screw rod is detachably provided in the threaded hole II. A spring is provided at one end of the screw rod, and a push plate is connected to one end of the spring.

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