Bridge maintenance system based on internet of things

Abstract

The application discloses a bridge maintenance system based on Internet of Things, and relates to the technical field of maintenance equipment.The bridge maintenance system comprises a field maintenance device and a display device.The field maintenance device comprises a cable sleeving displacement assembly and two transfer assemblies.The cable sleeving displacement assembly comprises a bearing frame, a rotating plate, a climbing wheel assembly, a rotating wheel assembly, an appearance detection system and an internal detection system.The bearing frame is an arc-shaped plate body, and a monitoring camera assembly is fixed on the side wall of the bearing frame.The bearing frame and the rotating plate can jointly form a bearing pipe.The two transfer assemblies are symmetrically arranged and fixed at the two ends of the bearing frame, and each comprises a bearing block, a rotating block, a connecting flexible rod rotatably connected to one end of the rotating block, a cladding fixing assembly and a pump air assembly.The cladding fixing assembly comprises a rectangular flexible plate, a deformation limiting strip, a first cladding film and a second cladding film.The bridge maintenance system can be transferred between adjacent cables under remote control, does not need to be manually disassembled, is clean and convenient, and has relatively high overall maintenance efficiency.

Description

Technical Field

[0001] This invention relates to the field of maintenance equipment technology, and in particular to a bridge maintenance system based on the Internet of Things. Background Technology

[0002] Cables are key load-bearing components of bridges. Some cables are quite long and high, and manual inspection is not only time-consuming and labor-intensive, but also poses safety hazards. Therefore, various automatic cable inspection devices have emerged on the market.

[0003] Chinese invention patent CN102323331B discloses an in-service cable defect detection device for detecting internal defects in cables. The device includes a detection crawler and a signal processing section. The detection crawler includes multiple detection modules symmetrically distributed along the circumference of the cable. The two ends of each detection module are connected together by an external frame fitted onto the cable. The detection module is modularly designed and consists of a magnetized adsorption unit, an active unit, a driven unit, and a detection probe unit. The detection crawler moves along the cable surface to obtain internal detection signals of the cable and transmits them to the signal processing section for analysis and processing to complete the detection of the cable.

[0004] The aforementioned device can autonomously climb along the cable and detect defects in the internal steel wires of the cable. However, after the maintenance of one cable is completed, the entire device needs to be manually removed and installed on another cable. This requires on-site human intervention and the entire process is labor-intensive. Furthermore, the removal and installation process must be carried out near the bridge deck, which seriously affects the maintenance efficiency. Summary of the Invention

[0005] This application provides an Internet of Things-based bridge maintenance system, which solves the technical problems of existing bridge maintenance systems requiring manual on-site participation, high labor intensity in disassembly and assembly, and low overall maintenance efficiency when replacing cables during bridge maintenance. It achieves the technical effect of enabling the bridge maintenance system to be transferred between adjacent cables under remote control, without manual disassembly and assembly, with convenient cleaning and relatively high overall maintenance efficiency.

[0006] This application provides an Internet of Things-based bridge maintenance system, including on-site maintenance equipment and display equipment. The on-site maintenance equipment includes a cable relocation component and two transfer components.

[0007] The cable shifting assembly includes a support frame, a rotating plate rotatably connected to the support frame, a plurality of climbing wheel assemblies fixed to the inner wall of the support tube, a rotating wheel assembly fixed to the inner wall of the support tube, an appearance inspection system, and an internal inspection system.

[0008] The support frame is an arc-shaped plate with a monitoring camera assembly fixed on its side wall. The support frame and the rotating plate can together form a support tube.

[0009] The two transfer components are symmetrically arranged and fixed at both ends of the support frame, including a support block fixed at the end of the support frame, a rotating block rotatably connected to the support block, a connecting flexible rod rotatably connected to the rotating block at one end, a covering and fixing component, and a pumping component.

[0010] The overall shape of the covering and fixing assembly is plate-shaped, including a rectangular flexible plate fixed to the end of the connecting flexible rod away from the rotating block, a deformation limiting strip fixed to the rectangular flexible plate, and a first covering film and a second covering film made of rubber, respectively fixed to the two largest surfaces of the rectangular flexible plate and covering the two surfaces respectively.

[0011] Preferably, multiple bullseye balls are evenly distributed on the surfaces of the first and second covering films that are away from the rectangular flexible plate.

[0012] Furthermore, the climbing wheel assembly includes a cylindrical wheel and a support frame. The cylindrical wheel rotates around its own axis under the drive of a motor and is rotatably connected to the support frame. The support frame is a plate or frame structure and is fixed to the inner wall of the bearing tube.

[0013] When the cable shifting assembly moves along the length of the cable, all the cylindrical wheels abut against the cable;

[0014] The sidewall of the cylindrical wheel is covered with a rubber layer to increase friction, and the axis of rotation of the cylindrical wheel is perpendicular to the axis of the bearing tube.

[0015] The rotating wheel assembly is also fixed on the inner wall of the bearing tube, and there are three or more of them, all of which are fixed on the bearing frame and are spaced equally between each other;

[0016] The rotating wheel assembly includes a cylindrical wheel and a telescopic frame;

[0017] The cylindrical wheel is rotatably connected to the telescopic frame under the drive of the motor, and the axial direction of the rotating shaft is the same as the axial direction of the bearing tube.

[0018] The telescopic frame is a telescopic rod structure, with one end fixed to the inner wall of the bearing tube and the other end carrying a columnar wheel. It extends and retracts under the control of the control unit, and moves toward the axis of the bearing tube when it extends.

[0019] When the telescopic frame extends, the cylindrical wheel will come into contact with the cable.

[0020] Preferably, the covering and fixing component is also provided with a camera that is signal-connected to the control unit at a position away from the cable shifting component.

[0021] Preferably, a connecting block is positioned between the rotating block and the connecting flexible rod, and the connecting block is a rigid block.

[0022] The connecting block is rotatably connected to the rotating block, and the connecting flexible rod is rotatably connected to the connecting block;

[0023] The rotation axes of the connecting block and the rotating block are perpendicular to the rotation axis of the connecting block and the connecting flexible rod;

[0024] The rotation of the connecting block relative to the rotating block and the rotation of the connecting flexible rod relative to the connecting block are both controlled collaboratively by the control unit and the power component;

[0025] The presence of the connecting block allows the camera on the covered and fixed components greater freedom of movement, making it easier to observe the cable connection and the cable's load-bearing status in detail.

[0026] Preferably, the connecting flexible rod includes a rod head bearing frame and a rod-shaped capsule;

[0027] The rod-shaped capsule is a rod-shaped capsule; the rod head support frame is a column with one open end, and there are two of them, which are sleeved and fixed at both ends of the rod-shaped capsule.

[0028] Preferably, a bladder length adjusting drum, which is controlled by a control unit, is positioned within one of the pole head bearing frames;

[0029] The bladder length adjustment roller has a roller structure, with one end of the rod-shaped bladder body fixed on the bladder length adjustment roller.

[0030] The rod-shaped bladder is connected to the air pump assembly and expands and contracts under the control of the control unit.

[0031] When the bladder length adjustment drum rotates, it works in conjunction with the air pump assembly to wind up or release the rod-shaped bladder, thereby adjusting the length of the connecting flexible rod.

[0032] Preferably, the support frame and / or the rod head support frame are provided with a gas cleaning nozzle, which is a high-pressure gas nozzle and is connected to the air pump assembly.

[0033] Preferably, it also includes a cleaning component:

[0034] The cleaning assembly includes a cleaning flexible plate and a brush positioning film fixed on the cleaning flexible plate;

[0035] The cleaning board is a rectangular rubber board with a thickness of less than 0.8 cm;

[0036] One of the pole head support frames consists of two tubular parts, with a cleaning soft plate fixed between the two tubular parts;

[0037] The length of the cleaning soft plate is more than 1.5 times the diameter of the cable, and its width direction is the same as the length direction of the rod-shaped capsule;

[0038] Multiple deformation limiting strips are also fixed on the cleaning flexible plate, and the length direction of the deformation limiting strips is the same as the width direction of the cleaning flexible plate;

[0039] The brush positioning film is an elastic film made of rubber. There are two of them, which are fixed on the two largest surfaces of the cleaning soft plate and cover these two surfaces. Together with the cleaning soft plate, they form two sealed spaces, both of which are connected to the air pump assembly.

[0040] The brush positioning film has densely packed brush bristles on the surface away from the cleaning board.

[0041] Preferably, the cable shifting assembly is further fixed with a cleaning fluid supply assembly for supplying cleaning fluid, and two or more cleaning nozzles are fixed on the rod head support frame near the cleaning assembly. The cleaning nozzles face the bristles, and the outlet of the cleaning nozzles is flat. When the bristles are brushing the cable, the cleaning nozzles spray cleaning fluid onto the bristles near the cable.

[0042] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0043] By optimizing and improving existing bridge maintenance systems, and using the Internet of Things (IoT) to transmit maintenance signals, rod-shaped transfer components are added to both ends of the cable relocation assembly. The deformation of these transfer components enables the transfer of on-site maintenance equipment between various cables. This effectively solves the technical problems of existing bridge maintenance systems, such as the need for manual on-site intervention, high labor intensity in disassembly and assembly, and low overall maintenance efficiency when replacing cables during bridge maintenance. As a result, the bridge maintenance system can be remotely transferred between adjacent cables, eliminating the need for manual disassembly and assembly, making cleaning convenient, and achieving relatively high overall maintenance efficiency. Attached Figure Description

[0044] Figure 1 This is a schematic diagram of the overall structure of the Internet of Things-based bridge maintenance system of the present invention;

[0045] Figure 2 This is a schematic diagram showing the positional relationship between the load-bearing frame and the connecting flexible rod;

[0046] Figure 3 This is a structural diagram of the covering and fixing components;

[0047] Figure 4 This is a schematic diagram of the cable shifting assembly.

[0048] Figure 5 This is a schematic diagram of the cable shifting assembly after it has been extended.

[0049] Figure 6 This is a schematic diagram showing the positional relationship between the rectangular flexible board, the first cover film, and the second cover film.

[0050] Figure 7 This is a schematic diagram showing the positional relationship between the rectangular flexible sheet and the deformation limiting strip.

[0051] Figure 8 A schematic diagram of the deformation state of the encapsulated and fixed components;

[0052] Figure 9 This is a schematic diagram showing the changes in the status of on-site maintenance equipment as it is moved along various steel cables.

[0053] Figure 10 This is a schematic diagram showing the positional relationship between the connecting block and the connecting flexible rod;

[0054] Figure 11 This is a schematic diagram showing the connection relationship between the air pump assembly and its various components;

[0055] Figure 12 A schematic diagram showing the positional relationship between the rod-shaped capsule, the rod head support frame, and the capsule length adjustment drum;

[0056] Figure 13 A schematic diagram showing the positional relationship between the cleaning flexible plate and the connecting flexible rod;

[0057] Figure 14 This is a schematic diagram of the structure of the cleaning flexible plate and the positioning film for the brush.

[0058] In the picture:

[0059] Cable 001, cable shifting assembly 100, bearing frame 110, monitoring camera assembly 111, rotating plate 120, rotation drive assembly 121, climbing wheel assembly 130, cylindrical wheel 131, support frame 132, rotating wheel assembly 140, cylindrical wheel 141, telescopic frame 142, transfer assembly 200, bearing block 210, rotating block 220, connecting block 221, connecting flexible rod 230, rod head bearing frame 231, rod-shaped bladder 232, bladder length adjusting drum 233, covering and fixing assembly 240, rectangular flexible plate 241, deformation limiting strip 242, first covering film 243, second covering film 244, bullseye ball bearing 245, air pump assembly 250, air pump 251, air valve 252, gas cleaning nozzle 310, cleaning flexible plate 320, brush positioning film 330, cleaning nozzle 340. Detailed Implementation

[0060] To facilitate understanding of the present invention, a more complete description of this application will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the invention. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to enable a more thorough and complete understanding of the disclosure of the present invention.

[0061] It should be noted that the terms "vertical," "horizontal," "up," "down," "left," "right," and similar expressions used in this article are for illustrative purposes only and do not represent the only possible implementation.

[0062] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to limit the invention; the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0063] Example 1

[0064] like Figures 1 to 5 As shown, the bridge maintenance system based on the Internet of Things in this application includes on-site maintenance equipment and display equipment. The on-site maintenance equipment is used to move on cable 001 to perform maintenance on cable 001. The display equipment includes a display screen that receives signals from the on-site maintenance equipment based on the Internet of Things to assist maintenance personnel in performing maintenance.

[0065] The on-site maintenance equipment includes a cable shifting assembly 100, transfer assemblies 200 positioned at both ends of the cable shifting assembly 100, a power assembly, and a control unit. The control unit is connected to the display device via signal.

[0066] The cable shifting assembly 100 is generally cylindrical and is sleeved on the cable 001. Under the coordinated control of the control unit and the power assembly, it moves on the cable 001. It includes a support frame 110, a rotating plate 120, a climbing wheel assembly 130, a rotating wheel assembly 140, an appearance inspection system, and an internal inspection system.

[0067] The support frame 110 is an arc-shaped plate with a C-shaped cross-section, which serves to support other components of the fixed cable transfer assembly 100. A monitoring camera assembly 111, which is a camera and connected to the display device, is fixed on the side wall of the support frame 110. The monitoring camera assembly 111 is used to monitor the structural changes of the transfer assembly 200 when it moves (and to observe other cables).

[0068] The rotating plate 120 is an arc-shaped plate rotatably connected to the support frame 110. It rotates under the drive of the rotating drive assembly 121. There are one or two of them, and their length direction is the same as that of the support frame 110. The rotating plate 120 and the support frame 110 can form a tube together. The rotating drive assembly 121 is preferably an electric telescopic rod with its two ends rotatably connected to the support frame 110 and the rotating plate 120 respectively. The operation of the rotating drive assembly 121 is controlled by the control unit. The rotation of the rotating plate 120 can make the cable shifting assembly 100 expose a gap, thereby allowing the cable shifting assembly 100 to detach from the cable 001 on which it is located.

[0069] For ease of description, the tube body formed by the rotating plate 120 and the support frame 110 is defined as the support tube.

[0070] Multiple climbing wheel assemblies 130 are fixed to the inner wall of the support tube, with at least one climbing wheel assembly 130 fixed to the rotating plate 120. Each climbing wheel assembly 130 includes a cylindrical wheel 131 and a support frame 132. The cylindrical wheel 131 rotates around its own axis under the drive of a motor and is rotatably connected to the support frame 132. The support frame 132 is a plate or frame structure and is fixed to the inner wall of the support tube. When the cable shifting assembly 100 moves along the length of the cable 001 (i.e., when the rotating plate 120 and the support frame 110 form the support tube), all cylindrical wheels 131 abut against the cable 001. The sidewalls of the cylindrical wheels 131 are covered with a rubber layer to increase friction, and the axial direction of the rotation axis of the cylindrical wheel 131 is perpendicular to the axial direction of the support tube.

[0071] The rotating wheel assembly 140 is also fixed to the inner wall of the bearing tube, with three or more components, all fixed to the bearing frame 110, and the spacing between them is equal. The rotating wheel assembly 140 includes a columnar wheel 141 and a telescopic frame 142. The columnar wheel 141 is rotatably connected to the telescopic frame 142 under the drive of a motor, and the axial direction of the rotating shaft is the same as the axial direction of the bearing tube. The telescopic frame 142 is a telescopic rod structure, with one end fixed to the inner wall of the bearing tube and the other end bearing the columnar wheel 141. It extends and retracts under the control of the control unit, and moves towards the axis of the bearing tube when it extends. After the telescopic frame 142 extends, the columnar wheel 141 will abut against the cable 001. At this time, the rotating plate 120 is controlled to rotate so that the columnar wheel 131 is no longer in close contact with the cable 001. Then, the columnar wheel 141 is controlled to rotate, thereby driving the bearing tube to rotate around its own axis.

[0072] Both the appearance inspection system and the internal inspection system are positioned on the side wall of the support frame 110 and between the support frame 110 and the cable 001. They are used to detect the appearance of the cable 001 and the internal damage of the cable 001, respectively. Preferably, they consist of multiple cameras and a flaw detection system, which will not be described in detail here.

[0073] The transfer assembly 200 is used to assist the on-site maintenance equipment in transferring between various cables 001. There are two of them, which are symmetrically arranged and fixed at both ends of the support frame 110. The transfer assembly 200 includes a support block 210, a rotating block 220, a connecting flexible rod 230, a covering and fixing assembly 240, and a pumping assembly 250.

[0074] The support block 210 is fixed to the end of the support frame 110 and is located at the center of the end of the support frame 110;

[0075] The rotating block 220 is rotatably connected to the bearing block 210 and rotates under the drive of a motor. The axial direction of the rotating shaft is the same as the length direction of the bearing frame 110.

[0076] The connecting flexible rod 230 is preferably made of rubber, with one end rotatably connected to the rotating block 220. It rotates under the drive of a motor, and the axial direction of the rotating shaft is perpendicular to the length direction of the bearing frame 110.

[0077] like Figures 6 to 8 As shown, the covering and fixing assembly 240 is fixed to the end of the connecting flexible rod 230 away from the rotating block 220, and is generally plate-shaped. The covering and fixing assembly 240 includes a rectangular flexible plate 241, a deformation limiting strip 242, a first covering film 243, and a second covering film 244. The rectangular flexible plate 241 is a rectangular rubber flexible plate, with one end fixed to the connecting flexible rod 230. The deformation limiting strip 242 is a rigid strip, with 10 or more strips, made of metal or plastic, fixed to the rectangular flexible plate 241, and its length direction is the same as the length direction of the connecting flexible rod 230, serving to limit the deformation of the rectangular flexible plate 241. The first covering film 243 and the second covering film... 244 are all elastic bladders made of rubber, respectively fixed to the two largest surfaces of the rectangular flexible plate 241, and respectively covering the two largest surfaces of the rectangular flexible plate 241. The first covering film 243 and the second covering film 244 together form a closed space with the rectangular flexible plate 241. Both of these closed spaces are connected to the air pumping assembly 250. When the amount of gas in the two closed spaces changes, the covering and fixing assembly 240 deforms and covers the cable 001 (deforms into a tube) or gradually unfolds. When the amount of gas in one closed space increases and the amount of gas in the other closed space decreases, the rectangular flexible plate 241 gradually deforms into a tube under the dual action of air pressure and elasticity.

[0078] Multiple bullseye balls 245 are evenly distributed on the surfaces of the first covering film 243 and the second covering film 244 that are away from the rectangular flexible plate 241. The bullseye balls 245 are used to reduce the friction between the covering and fixing component 240 and the cable 001 and the wear of the covering and fixing component 240 when the cable shifting component 100 moves along the cable 001.

[0079] like Figure 11 As shown, the air pump assembly 250 is positioned on the cable shifting assembly 100 and is used to control the amount of gas inside each enclosed space as needed under the control of the control unit. It includes an air pump 251, an air valve 252, and an air delivery hose.

[0080] The power component is used to provide power for the operation of various components of the IoT-based bridge maintenance system of this application, and the control unit plays the role of controlling the coordinated operation of various components of the IoT-based bridge maintenance system. Both are existing technologies and will not be described in detail here.

[0081] Preferably, the control unit is a combination of a programmable logic controller and a remote control system.

[0082] like Figure 9 As shown, the IoT-based bridge maintenance system of this application embodiment is used in actual operation as follows:

[0083] 1. The operator first installs the on-site maintenance equipment on one of the cables 001 and moves it on the cable 001 remotely; during this time, the rotating wheel assembly 140 can be used to rotate around the cable 001 as needed.

[0084] 2. After the cable 001 is repaired, the cable shifting component 100 is rotated to move it closer to the next cable 001 that needs to be repaired; then the covering and fixing component 240 is deformed to make the covering and fixing component 240 stretch; then the connecting flexible rod 230 is rotated to make the covering and fixing component 240 fit tightly against the next cable 001 that needs to be repaired.

[0085] 3. Control the upper covering and fixing component 240 to continue to expand and deform, so that the covering and fixing component 240 is fixed on the cable 001 that needs to be repaired;

[0086] 4. Then the rotating plate 120 rotates, and then the connecting flexible rod 230 is controlled to rotate, so that the cable shifting assembly 100 is disengaged from the cable 001; the rotating block 220 is controlled to rotate 180 degrees, so that the opening of the bearing frame 110 faces the next cable 001 that needs to be repaired.

[0087] 5. Control the connecting flexible rod 230 to rotate so that the bearing frame 110 is fitted onto the cable 001 that needs to be repaired; control the rotating plate 120 to rotate so that the cable 001 that needs to be repaired is fitted into the bearing tube;

[0088] 6. Control the shrinkage of the covering and fixing component 240 by a certain amount, then remove the fixing; and then carry out normal maintenance work.

[0089] Preferably, the covering and fixing component 240 is also provided with a camera connected to the control unit at a position away from the cable shifting component 100. These cameras have a greater degree of spatial adjustment and are more convenient for capturing the specific state of the cable 001 problem point.

[0090] Preferably, a connecting block 221 is positioned between the rotating block 220 and the connecting flexible rod 230, and the connecting block 221 is a rigid block. The connecting block 221 is rotatably connected to the rotating block 220, and the connecting flexible rod 230 is rotatably connected to the connecting block 221. The rotation axes of the connecting block 221 and the rotating block 220, and the rotation axes of the connecting block 221 and the connecting flexible rod 230 are perpendicular. The rotation of the connecting block 221 relative to the rotating block 220 and the rotation of the connecting flexible rod 230 relative to the connecting block 221 are both controlled by the control unit and the power component. The presence of the connecting block 221 allows the camera on the covering and fixing component 240 to have a higher degree of freedom, making it easier to observe the connection of the cable 001 and the status of the cable's support frame (support column) in detail, thereby improving the maintenance effect.

[0091] Preferred, such as Figure 10 As shown, in order to improve the endurance of on-site maintenance equipment and reduce its weight, the main body of the connecting flexible rod 230 is a capsule, including a rod head bearing frame 231 and a rod-shaped capsule 232; the rod-shaped capsule 232 is a rod-shaped capsule, preferably with a rectangular cross-section; the rod head bearing frame 231 is a column with one open end, and there are two of them, which are sleeved and fixed at both ends of the rod-shaped capsule 232;

[0092] Preferred, such as Figure 12 As shown, in order to further improve the endurance of on-site maintenance equipment and reduce wind resistance and energy loss during movement, a bladder length adjustment drum 233, controlled by a control unit, is positioned inside one of the pole head support frames 231. The bladder length adjustment drum 233 is a drum structure, with one end of the rod-shaped bladder 232 fixed to it. The rod-shaped bladder 232 is connected to the air pump assembly 250 and expands and contracts under the control of the control unit. When the bladder length adjustment drum 233 rotates, it works with the air pump assembly 250 to wind up or release the rod-shaped bladder 232, thereby adjusting the length of the connecting flexible rod 230. During routine maintenance, the rod-shaped bladder 232 is wound up to its shortest length. The length of the connecting flexible rod 230 is adjustable, which can better adapt to cables 001 with different spacing.

[0093] Preferably, the support frame 110 and / or the pole head support frame 231 are provided with a gas cleaning nozzle 310. The gas cleaning nozzle 310 is a high-pressure gas nozzle that is connected to the air pump assembly 250. It can remove surface debris (rust, etc.) in a targeted manner after a problem point is found in the cable 001, thereby improving the accuracy of maintenance.

[0094] The technical solutions described in the embodiments of this application above have at least the following technical effects or advantages:

[0095] This invention solves the technical problems of existing bridge maintenance systems that require manual on-site participation, involve high labor intensity during cable replacement, and have low overall maintenance efficiency. It achieves the technical effect of enabling the bridge maintenance system to be transferred between adjacent cables under remote control, eliminating the need for manual disassembly and assembly, facilitating cleaning, and achieving relatively high overall maintenance efficiency.

[0096] Example 2

[0097] Considering that the maintenance of suspension bridge cables also requires cleaning (cleaning can remove dirt and corrosion from the surface of the suspension bridge cables, keeping the surface clean and smooth, thereby extending the service life of the suspension bridge cables); this application embodiment adds a cleaning component to the on-site maintenance equipment based on the above embodiment, enabling the on-site maintenance equipment to clean cable 001 during the maintenance process, thereby improving the practicality of the on-site maintenance equipment, specifically:

[0098] like Figure 13 and Figure 14As shown, the cleaning assembly includes a cleaning soft plate 320 and a brush positioning film 330 fixed on the cleaning soft plate 320. The cleaning soft plate 320 is a rectangular rubber plate with a thickness of less than 0.8 cm. One of the rod head support frames 231 consists of two tubes, and the cleaning soft plate 320 is fixed between these two tubes. The length of the cleaning soft plate 320 is more than 1.5 times the diameter of the cable 001, and its width direction is the same as the length direction of the rod-shaped capsule 232. Multiple deformation limiting strips 242 are also fixed on the cleaning soft plate 320, and the length direction of the deformation limiting strips 242 is the same as the width direction of the cleaning soft plate 320. The brush positioning film 330 is an elastic rubber film, and there are two of them. They are fixed on the two largest surfaces of the cleaning soft plate 320 and cover these two surfaces, forming two sealed spaces together with the cleaning soft plate 320. Both of these sealed spaces are connected to the air pump assembly 2. 50 connection; the bending and stretching principle of the cleaning soft plate 320 is the same as that of the rectangular soft plate 241; the brush positioning film 330 is densely covered with bristles on the surface away from the cleaning soft plate 320; during maintenance, the bending of the cleaning soft plate 320 can be controlled to make the bristles adhere tightly to the cable 001, so that the cable shifting component 100 can clean and maintain the cable 001 when it moves; the area of ​​the cable 001 that needs to be cleaned and the cleaning force required can also be determined according to the feedback image information, and the cleaning force can be controlled by controlling the expansion and contraction of the brush positioning film 330; during use, the cleaning soft plate 320 can be stretched (multiple deformations change the bristle gap, causing the adhering debris to fall off by itself and reducing the probability of debris remaining on the cable 001 after cleaning) and the connecting soft rod 230 can be rotated to beat the cable 001 to clean the debris adhering to and remaining on the bristles.

[0099] The scrubbing effect can be enhanced by the reciprocating movement of the cable shifting component 100.

[0100] Preferably, the cable shifting assembly 100 is further fixed with a cleaning fluid supply assembly for supplying cleaning fluid, and two or more cleaning nozzles 340 are fixed on the rod head support frame 231 near the cleaning assembly. The cleaning nozzles 340 face the bristles, and the outlet of the cleaning nozzles 340 is flat. When the bristles are brushing the cable 001, the cleaning nozzles 340 spray cleaning fluid onto the bristles near the cable 001.

[0101] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A bridge maintenance system based on the Internet of Things, characterized in that: It includes on-site maintenance equipment and display equipment. The on-site maintenance equipment includes a cable shifting assembly (100) and two transfer assemblies (200). The cable shifting assembly (100) includes a support frame (110), a rotating plate (120) rotatably connected to the support frame (110), multiple climbing wheel assemblies (130) fixed to the inner wall of the support tube, a rotating wheel assembly (140) fixed to the inner wall of the support tube, an appearance inspection system, and an internal inspection system. The support frame (110) is an arc-shaped plate with a monitoring camera assembly (111) fixed on its side wall. The support frame (110) and the rotating plate (120) can together form a support tube. The two transfer components (200) are symmetrically arranged and fixed at both ends of the support frame (110), including a support block (210) fixed at the end of the support frame (110), a rotating block (220) rotatably connected to the support block (210), a connecting flexible rod (230) rotatably connected at one end to the rotating block (220), a covering and fixing component (240), and a pumping component (250); The covering and fixing assembly (240) is plate-shaped in general, including a rectangular flexible plate (241) fixed to one end of the connecting flexible rod (230) away from the rotating block (220), a deformation limiting strip (242) fixed on the rectangular flexible plate (241), and a first covering film (243) and a second covering film (244) made of rubber and respectively fixed on the two largest surfaces of the rectangular flexible plate (241). The first covering membrane (243) and the second covering membrane (244) together form a closed space with the rectangular flexible plate (241). Both of these closed spaces are connected to the air pump assembly (250). When the amount of gas in the two closed spaces changes, the covering and fixing assembly (240) deforms and covers the cable (001) into a tube shape or gradually unfolds.

2. The bridge maintenance system based on the Internet of Things as described in claim 1, characterized in that: Multiple bullseye balls (245) are evenly distributed on the surfaces of the first cover film (243) and the second cover film (244) that are away from the rectangular flexible plate (241).

3. The bridge maintenance system based on the Internet of Things as described in claim 1, characterized in that: The climbing wheel assembly (130) includes a cylindrical wheel (131) and a support frame (132). The cylindrical wheel (131) rotates around its own axis under the drive of a motor and is rotatably connected to the support frame (132). The support frame (132) is a plate or frame structure and is fixed on the inner wall of the bearing tube. When the cable shifting assembly (100) moves along the length of the cable (001), all the cylindrical wheels (131) abut against the cable (001); The sidewall of the cylindrical wheel (131) is covered with a rubber layer to increase friction, and the axial direction of the rotation axis of the cylindrical wheel (131) is perpendicular to the axial direction of the bearing tube. The rotating wheel assembly (140) is also fixed on the inner wall of the bearing tube, and there are three or more of them, all of which are fixed on the bearing frame (110) with equal spacing between them; The rotating wheel assembly (140) includes a cylindrical wheel (141) and a telescopic frame (142); The cylindrical wheel (141) is rotatably connected to the telescopic frame (142) under the drive of the motor, and the axial direction of the rotating shaft is the same as the axial direction of the bearing tube; The telescopic frame (142) is a telescopic rod structure. One end is fixed on the inner wall of the bearing tube, and the other end carries a columnar wheel (141). It extends and retracts under the control of the control unit and moves toward the axis of the bearing tube when it extends. When the telescopic frame (142) is extended, the cylindrical wheel (141) will come into contact with the cable (001).

4. The bridge maintenance system based on the Internet of Things as described in claim 1, characterized in that: A camera connected to the control unit is also located at a position away from the cable shifting assembly (100) of the covering and fixing assembly (240).

5. The bridge maintenance system based on the Internet of Things as described in claim 4, characterized in that: A connecting block (221) is positioned between the rotating block (220) and the connecting flexible rod (230), and the connecting block (221) is a hard block. The connecting block (221) is rotatably connected to the rotating block (220), and the connecting flexible rod (230) is rotatably connected to the connecting block (221); The rotation axes of the connecting block (221) and the rotating block (220) are perpendicular to the rotation axis of the connecting block (221) and the connecting flexible rod (230); The rotation of the connecting block (221) relative to the rotating block (220) and the rotation of the connecting flexible rod (230) relative to the connecting block (221) are both controlled by the control unit and the power component. The presence of the connecting block (221) allows the camera on the covering and fixing component (240) to have a higher degree of freedom, making it easier to observe the connection of the cable (001) and the load-bearing status of the cable in detail.

6. The bridge maintenance system based on the Internet of Things as described in any one of claims 1 to 5, characterized in that: The connecting flexible rod (230) includes a rod head bearing frame (231) and a rod-shaped capsule (232); The rod-shaped capsule (232) is a rod-shaped capsule; the rod head support frame (231) is a column with one open end, and there are two of them, which are sleeved and fixed at both ends of the rod-shaped capsule (232).

7. The bridge maintenance system based on the Internet of Things as described in claim 6, characterized in that: One of the pole head support frames (231) has a bladder length adjustment drum (233) that is controlled to rotate by a control unit. The bladder length adjusting drum (233) is a drum structure, and one end of the rod-shaped bladder (232) is fixed on the bladder length adjusting drum (233); The rod-shaped bladder (232) is connected to the air pump assembly (250) and expands and contracts under the control of the control unit; When the bladder length adjusting drum (233) rotates, it works in conjunction with the air pump assembly (250) to wind up or release the rod-shaped bladder (232) and thus adjust the length of the connecting flexible rod (230).

8. The bridge maintenance system based on the Internet of Things as described in claim 6, characterized in that: The support frame (110) and / or the rod head support frame (231) are provided with a gas cleaning nozzle (310), which is a high-pressure gas nozzle and is connected to the air pump assembly (250).

9. The bridge maintenance system based on the Internet of Things as described in claim 6, characterized in that: Also includes cleaning components: The cleaning assembly includes a cleaning soft plate (320) and a brush positioning film (330) fixed on the cleaning soft plate (320); The cleaning soft board (320) is a rectangular rubber board with a thickness of less than 0.8 cm; One of the pole head support frames (231) consists of two tubes, with a cleaning soft plate (320) fixed between the two tubes; The length of the cleaning soft plate (320) is more than 1.5 times the diameter of the cable (001), and the width direction is the same as the length direction of the rod-shaped capsule (232); Multiple deformation limiting strips (242) are also fixed on the cleaning soft plate (320), and the length direction of the deformation limiting strips (242) is the same as the width direction of the cleaning soft plate (320); The brush positioning film (330) is an elastic film made of rubber. There are two of them, which are fixed on the two largest surfaces of the cleaning soft plate (320) and cover these two surfaces. Together with the cleaning soft plate (320), they form two sealed spaces. Both of these sealed spaces are connected to the air pump assembly (250). The brush positioning film (330) is densely covered with brush bristles on the surface away from the cleaning soft plate (320).

10. The bridge maintenance system based on the Internet of Things as described in claim 9, characterized in that: The cable shifting assembly (100) is also fixed with a cleaning fluid supply assembly for supplying cleaning fluid. Two or more cleaning nozzles (340) are fixed on the rod head support frame (231) near the cleaning assembly. The cleaning nozzles (340) face the bristles and the outlet of the cleaning nozzles (340) is flat. When the bristles are brushing the cable (001), the cleaning nozzles (340) spray cleaning fluid onto the bristles near the cable (001).

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