Environment-friendly coating device for bridge maintenance

By designing an environmentally friendly coating application device for bridge maintenance, which utilizes a motor-driven linkage frame and a paint sleeve, combined with belt drive and a liquid collection system, the problem of cumbersome coating application on the outside of bridge crash barriers has been solved, achieving efficient and uniform coating application and material reuse.

CN116516850BActive Publication Date: 2026-04-24SHANDONG GAOSU LOAD & BRIDGE MAINTENANCE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANDONG GAOSU LOAD & BRIDGE MAINTENANCE CO LTD
Filing Date
2023-06-21
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Applying anti-corrosion paint to the exterior of existing bridge crash barriers is a cumbersome and inefficient process, limited by manual operation, with a small application area and a large workload.

Method used

Design an environmentally friendly coating application device for bridge maintenance. Utilize a motor-driven linkage frame and paint sleeve, combined with belt drive and liquid collection system, to achieve automated coating and efficient collection and reuse of the coating.

Benefits of technology

It improves coating efficiency, reduces labor intensity, minimizes material waste, is suitable for crash barriers of different thicknesses, and ensures uniform coating application.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses an environment-friendly coating coating device for bridge maintenance, which comprises a base frame, electric telescopic rods are fixedly connected to the two sides of the top of the base frame through openings, a U-shaped sliding frame is fixedly connected between the top ends of the two electric telescopic rods, a linkage frame is slidably installed on the inner side of the U-shaped sliding frame, and a threaded seat is fixedly connected to the rear part of the U-shaped sliding frame through a support, and the application relates to the technical field of bridge maintenance. The environment-friendly coating coating device for bridge maintenance is provided with a linkage frame on the top of the base frame, a painting sleeve is connected to one side of the bottom of the linkage frame, and the whole is driven by a motor. The arrangement of these structures can achieve the following effects: when construction is carried out, the equipment can be moved by being attached to the motor, the outer side of the anti-collision wall can be quickly and uniformly painted at the same time, the painting efficiency can be improved, the labor intensity and cost of workers can be reduced, and the device is suitable for the current field.
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Description

Technical Field

[0001] This invention relates to the field of bridge maintenance technology, specifically to an environmentally friendly coating application device for bridge maintenance. Background Technology

[0002] Roads and bridges generally consist of several major parts, including roadbed, pavement, bridges, tunnels, and traffic engineering facilities. Road maintenance is the maintenance of roads and their structures and facilities to maintain road performance as much as possible, restore damaged parts in a timely manner, ensure safe, comfortable, and smooth driving, and save transportation costs and time. It involves regular maintenance and repair to ensure the normal use of roads, prevention and repair of catastrophic damage, and reinforcement, improvement, or expansion to improve the quality of use and service levels.

[0003] Currently, during bridge maintenance, in order to prevent the bridge from being corroded by external factors over a long period of use, anti-corrosion paint is usually applied to the bridge surface in a timely manner. While the application process is relatively convenient on the inside of the bridge, it is more complicated when applying it to the outside of the crash barriers on both sides of the bridge. Workers need to be suspended on both sides of the bridge by slings and use rollers to apply the paint. This method restricts movement and reduces the application area. The position of each application end needs to be adjusted multiple times, resulting in low application efficiency, complicated construction, and increased labor.

[0004] Therefore, an environmentally friendly coating application device for bridge maintenance has been designed to improve painting efficiency and address these shortcomings. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an environmentally friendly coating application device for bridge maintenance, which solves the problem of cumbersome and inefficient manual painting of the outer side of bridge crash barriers.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an environmentally friendly coating application device for bridge maintenance, comprising a base frame, wherein electric telescopic rods are fixedly connected to both sides of the top of the base frame through openings, a U-shaped sliding frame is fixedly connected between the top ends of the two electric telescopic rods, a linkage frame is slidably installed on the inner side of the U-shaped sliding frame, a threaded seat is fixedly connected to the rear of the U-shaped sliding frame through a bracket, and a threaded rod is threadedly connected to the inner side of the threaded seat, the front end of the threaded rod being rotatably connected to the rear of the linkage frame through a bearing component.

[0007] Preferably, a rotating groove is provided on the lower part of the surface of the base frame. A roller is rotatably connected between the top and bottom of the inner cavity of the rotating groove through a bearing. Three rollers are provided. A motor is fixedly connected to the bottom of the base frame through a bracket. The output shaft of the motor is fixedly connected to a telescopic rod through a coupling. The top of the telescopic rod passes through the base frame, the U-shaped sliding frame and the middle roller in sequence and extends to the inner side of the linkage frame. A first sliding plate is fixedly connected to the front of both sides of the inner cavity of the linkage frame. A sliding block slides between the two first sliding plates. A first spring is connected between the sliding block and the inner wall of the linkage frame. A hollow rotating rod is rotatably connected to the bottom of the sliding block through a bearing. The top of the hollow rotating rod passes through the sliding block and the linkage frame in sequence and extends to the top of the linkage frame.

[0008] Preferably, a second slide plate is fixedly connected to the right side of the linkage frame, a slider column is slidably installed on the inner side of the second slide plate, a second spring is fixedly connected between the inner wall of the slider column and the second slide plate, a first pulley is connected to the top of the slider column and the surface of the hollow rotating rod and the telescopic rod, the three first pulleys are connected by a first belt drive, and a telescopic opening is provided on one side of the linkage frame to cooperate with the first belt.

[0009] Preferably, a mesh cylinder is fixedly connected to the bottom end of the hollow rotating rod, a paint sleeve is fitted on the surface of the mesh cylinder, and a liquid collection frame that cooperates with the paint sleeve is rotatably connected to the bottom end of the mesh cylinder through a bearing component.

[0010] Preferably, a load-bearing plate is fixedly connected to the rear of the base frame, and a loading cylinder is fixedly connected to both sides of the top of the load-bearing plate. A rotating rod is rotatably connected to the bottom of the inner cavity of the loading cylinder through a bearing. The bottom end of the rotating rod passes through the loading cylinder and the load-bearing plate in sequence and extends to the lower part of the load-bearing plate. A driven rod is rotatably connected to the bottom of the load-bearing plate and between the two rotating rods through a bearing. The telescopic rod, the driven rod, and the two rotating rods are connected by a second pulley and a second belt drive. A stirring blade is fixedly connected to the surface of the rotating rod and inside the loading cylinder.

[0011] Preferably, a water pump is fixedly connected to the left side of the top of the base frame, a liquid guide frame that is connected to the hollow rotating rod is fixedly connected to the top of the linkage frame, and a double-headed guide pipe is connected to the rear of the water pump, with both ends of the double-headed guide pipe extending to the inner sides of the two loading cylinders respectively.

[0012] Preferably, the top of the water pump is connected to a discharge pipe, and one end of the discharge pipe is connected to the liquid guide frame. The front of the water pump is connected to a return pipe, and one end of the return pipe passes through the liquid collection frame and extends to the inside of the liquid collection frame.

[0013] Preferably, both sides of the bottom of the base frame and the load-bearing plate are fixedly connected to casters by brackets.

[0014] Beneficial effects

[0015] This invention provides an environmentally friendly coating application device for bridge maintenance. Compared with existing technologies, it has the following advantages:

[0016] (1) The environmentally friendly coating application device for bridge maintenance has a linkage frame set on the top of the base frame and a paint sleeve connected to one side of the bottom of the linkage frame. The whole is driven by a motor. The structure can quickly and evenly apply the coating to the outside of the crash barrier while the equipment is attached and moved by the motor during construction. This can improve the coating efficiency and reduce the labor intensity and cost of the workers. It is suitable for the current field.

[0017] (2) The environmentally friendly coating device for bridge maintenance has a mesh cylinder connected to the bottom of the hollow rotating rod and a paint sleeve set on the surface of the mesh cylinder. At the same time, a liquid collection frame is installed at the bottom of the mesh cylinder. The liquid collection frame is connected to the water pump through the return pipe. The structure can ensure that excess paint on the surface of the paint sleeve can be collected during the coating process. When a large amount is collected, it can be extracted and reused, thus avoiding waste of materials.

[0018] (3) The environmentally friendly coating device for bridge maintenance uses a first belt to drive and connect three first pulleys, and the slider column is elastically connected by a second spring. The structure can use the first spring to squeeze the slide block when the linkage frame moves so that the paint sleeve is in close contact with the wall. At the same time, it can also ensure the tension of the first belt so that the paint sleeve can be evenly coated and is suitable for anti-collision walls of different thicknesses. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is a rear view of the threaded rod, load-bearing plate, and loading cylinder structure of the present invention;

[0021] Figure 3 For the present invention Figure 2 A magnified view of a section at point A in the middle;

[0022] Figure 4 This is a cross-sectional view of the linkage frame structure of the present invention;

[0023] Figure 5 For the present invention Figure 4 A magnified view of a section at point B in the middle;

[0024] Figure 6This is a bottom view of the driven rod, second pulley, and second belt structure of the present invention;

[0025] Figure 7 This is a cross-sectional view of the charging cylinder structure of the present invention.

[0026] In the diagram: 1. Base frame; 2. Electric telescopic rod; 3. U-shaped sliding frame; 4. Linkage frame; 5. Rotating groove; 6. Roller; 7. Motor; 8. Telescopic rod; 9. First sliding groove plate; 10. Slide block; 11. First spring; 12. Hollow rotating rod; 13. Second sliding groove plate; 14. Sliding block column; 15. Second spring; 16. First pulley; 17. First belt; 18. Telescopic port; 19. Mesh cylinder; 20. Paint sleeve; 21. Liquid collection frame; 22. Threaded seat; 23. Threaded rod; 24. Loading plate; 25. Loading cylinder; 26. Rotating rod; 27. Driven rod; 28. Second pulley; 29. ​​Second belt; 30. Stirring blade; 31. Water pump; 32. Liquid guide frame; 33. Double-ended guide pipe; 34. Discharge pipe; 35. Return pipe; 36. Caster wheel. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0028] Please see Figure 1-7 This invention provides two technical solutions:

[0029] Example 1

[0030] An environmentally friendly coating application device for bridge maintenance includes a base frame 1. Electric telescopic rods 2 are fixedly connected to both sides of the top of the base frame 1 through openings. A U-shaped sliding frame 3 is fixedly connected between the top ends of the two electric telescopic rods 2. A linkage frame 4 is slidably installed on the inner side of the U-shaped sliding frame 3. A threaded seat 22 is fixedly connected to the rear of the U-shaped sliding frame 3 through a bracket. A threaded rod 23 is threadedly connected to the inner side of the threaded seat 22. The front end of the threaded rod 23 is rotatably connected to the rear of the linkage frame 4 through a bearing.

[0031] A rotating groove 5 is provided on the lower part of the surface of the base frame 1. Rollers 6 are rotatably connected between the top and bottom of the inner cavity of the rotating groove 5 via bearings. Three rollers 6 are provided. A motor 7 is fixedly connected to the bottom of the base frame 1 via a bracket. The output shaft of the motor 7 is fixedly connected to a telescopic rod 8 via a coupling. The top of the telescopic rod 8 passes through the base frame 1, the U-shaped sliding frame 3, and the middle rollers 6 sequentially, extending to the inner side of the linkage frame 4. First sliding plates 9 are fixedly connected to the front of both sides of the inner cavity of the linkage frame 4. A sliding block 10 slides between the two first sliding plates 9. A first spring 11 connects the sliding block 10 to the inner wall of the linkage frame 4. The bottom of the sliding block 10... The unit is rotatably connected to a hollow rotating rod 12 via bearing components. The top end of the hollow rotating rod 12 passes through the sliding block 10 and the linkage frame 4 in sequence and extends to the top of the linkage frame 4. A second sliding groove plate 13 is fixedly connected to the right side of the linkage frame 4. A slider column 14 is slidably installed on the inner side of the second sliding groove plate 13. A second spring 15 is fixedly connected between the inner wall of the slider column 14 and the second sliding groove plate 13. The top of the slider column 14 and the surfaces of the hollow rotating rod 12 and the telescopic rod 8 are all connected to a first pulley 16. The three first pulleys 16 are connected to each other by a first belt 17. A telescopic opening 18 is provided on one side of the linkage frame 4 to cooperate with the first belt 17.

[0032] A mesh cylinder 19 is fixedly connected to the bottom end of the hollow rotating rod 12. A paint sleeve 20 is fitted onto the surface of the mesh cylinder 19. A liquid collection frame 21 that cooperates with the paint sleeve 20 is rotatably connected to the bottom end of the mesh cylinder 19 through a bearing.

[0033] Example 2

[0034] An environmentally friendly coating application device for bridge maintenance includes a base frame 1. Electric telescopic rods 2 are fixedly connected to both sides of the top of the base frame 1 through openings. A U-shaped sliding frame 3 is fixedly connected between the top ends of the two electric telescopic rods 2. A linkage frame 4 is slidably installed on the inner side of the U-shaped sliding frame 3. A guide groove and a limiting block are provided between the U-shaped sliding frame 3 and the linkage frame 4 for mutual cooperation. A threaded seat 22 is fixedly connected to the rear of the U-shaped sliding frame 3 through a bracket. A threaded rod 23 is threadedly connected to the inner side of the threaded seat 22. The front end of the threaded rod 23 is rotatably connected to the rear of the linkage frame 4 through a bearing.

[0035] As an optional embodiment, a rotating groove 5 is provided on the lower part of the surface of the base frame 1. A roller 6 is rotatably connected between the top and bottom of the inner cavity of the rotating groove 5 through a bearing. The roller 6 is made of rubber and has high friction when in contact with the wall. There are three rollers 6. A motor 7 is fixedly connected to the bottom of the base frame 1 through a bracket. The motor 7 is a servo motor. The output shaft of the motor 7 is fixedly connected to a telescopic rod 8 through a coupling. The telescopic rod 8 is fixedly connected to the middle roller 6. The top of the telescopic rod 8 passes through the base frame 1, the U-shaped sliding frame 3 and the middle roller 6 in sequence and extends to the inner side of the linkage frame 4. The front of both sides of the inner cavity of the linkage frame 4 is fixedly connected to a first sliding plate 9. A sliding block 10 slides between the two first sliding plates 9. A first spring 11 is connected between the sliding block 10 and the inner wall of the linkage frame 4. The bottom of the sliding block 10 is rotatably connected to a hollow rotating rod 12 through a bearing. The top of the hollow rotating rod 12 passes through the sliding block 10 and the linkage frame 4 in sequence and extends to the top of the linkage frame 4.

[0036] Furthermore, a second sliding plate 13 is fixedly connected to the right side of the linkage frame 4. A slider column 14 is slidably installed on the inner side of the second sliding plate 13. A second spring 15 is fixedly connected between the slider column 14 and the inner wall of the second sliding plate 13. A first pulley 16 is connected to the top of the slider column 14 and the surfaces of the hollow rotating rod 12 and the telescopic rod 8. The three first pulleys 16 are connected by a first belt 17. A telescopic port 18 that cooperates with the first belt 17 is opened on one side of the linkage frame 4. A mesh cylinder 19 is fixedly connected to the bottom end of the hollow rotating rod 12. A paint sleeve 20 is sleeved on the surface of the mesh cylinder 19. The outside of the paint sleeve 20 is a soft brush that can penetrate. A liquid collection frame 21 that cooperates with the paint sleeve 20 is rotatably connected to the bottom end of the mesh cylinder 19 through a bearing.

[0037] The base frame 1 is fixedly connected to a load-bearing plate 24 at the rear. Loading cylinders 25 are fixedly connected to both sides of the top of the load-bearing plate 24. A rotating rod 26 is rotatably connected to the bottom of the inner cavity of the loading cylinder 25 through a bearing. The bottom end of the rotating rod 26 passes through the loading cylinder 25 and the load-bearing plate 24 and extends to the lower part of the load-bearing plate 24. A driven rod 27 is rotatably connected to the bottom of the load-bearing plate 24 and between the two rotating rods 26 through a bearing. The telescopic rod 8, the driven rod 27 and the two rotating rods 26 are connected by a second pulley 28 and a second belt 29. A stirring blade 30 is fixedly connected to the surface of the rotating rod 26 and inside the loading cylinder 25.

[0038] Among them, a water pump 31 is fixedly connected to the top left side of the base frame 1, and a liquid guide frame 32 that is connected to the hollow rotating rod 12 is fixedly connected to the top of the linkage frame 4. The liquid guide frame 32 is rotatably connected to the hollow rotating rod 12 through a sealed bearing. A double-headed guide pipe 33 is connected to the rear of the water pump 31. The two ends of the double-headed guide pipe 33 extend to the inner side of the two loading cylinders 25 respectively. A discharge pipe 34 is connected to the top of the water pump 31, and one end of the discharge pipe 34 is connected to the liquid guide frame 32. A return pipe 35 is connected to the front of the water pump 31, and one end of the return pipe 35 passes through the liquid collection frame 21 and extends to the inner side of the liquid collection frame 21.

[0039] Both sides of the bottom of the base frame 1 and the load-bearing plate 24 are fixedly connected with casters 36 by brackets.

[0040] The advantages of Embodiment 2 compared to Embodiment 1 are as follows: By connecting a mesh cylinder 19 to the bottom end of the hollow rotating rod 12 and setting a paint sleeve 20 on the surface of the mesh cylinder 19, and installing a liquid collection frame 21 at the bottom of the mesh cylinder 19, the liquid collection frame 21 is connected to the water pump 31 through the return pipe 35. These structural settings can ensure that excess paint on the surface of the paint sleeve 20 can be collected during painting, and when a large amount is collected, it can be pulled out for reuse, avoiding material waste. By using the first belt 17 to drive and connect the three first pulleys 16, and the slider column 14 is elastically connected by the second spring 15, these structural settings can first use the first spring 11 to squeeze the slide block 10 to make the paint sleeve 20 stick tightly to the wall when the linkage frame 4 moves, while also ensuring the tension of the first belt 17, so that the paint sleeve 20 can be evenly coated, and it is suitable for anti-collision walls of different thicknesses.

[0041] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0042] In use, the equipment is pushed onto the bridge deck by the universal wheels 36. Then, the electric telescopic rod 2 is activated to push the U-shaped sliding frame 3 and the linkage frame 4 upward. After the liquid collection frame 21 rises above the crash barriers on both sides, the base frame 1 is pushed close to the crash barriers, so that the rollers 6 are in close contact with the crash barriers. Then, the electric telescopic rod 2 is activated again to drive the linkage frame 4 downward until the liquid collection frame 21 is in a suspended position below the bridge body and stops. After the linkage frame 4 stops, the operator manually rotates the threaded rod 23, which, under the action of the threaded seat 22 and the U-shaped sliding frame 3, pulls the linkage frame 4. The moving frames 4 move towards each other. During this process, the first spring 11 pushes the sliding block 10 to make the paint sleeve 20 fit tightly against the wall. At the same time, the first belt 17 remains taut due to the pull of the second spring 15 and the slider column 14. At this point, the rotation of the threaded rod 23 stops. Then, the environmentally friendly paint is poured into the inside of the two filling cylinders 25 and the motor 7 is started. After the motor 7 starts, it drives the telescopic rod 8 to rotate. The rotation of the telescopic rod 8 is simultaneously driven by the first pulley 16, the first belt 17, the second pulley 28, and the second belt 29. The two rotating rods 26 and the hollow rotating rod 12 rotate, simultaneously activating the water pump 31. The roller 6, driven by the telescopic rod 8, moves against the wall through friction. Meanwhile, the painting sleeve 20 rotates on the wall via the first pulley 16 and the first belt 17. The water pump 31 injects paint into the guide frame 32 through the double-ended guide pipe 33 and the discharge pipe 34, then through the hollow rotating rod 12 into the mesh cylinder 19. Because the mesh cylinder 19 has perforations, the paint penetrates into the painting sleeve 20. The rotation of the cylinder 20 evenly applies the paint to the outside of the crash barrier, while the liquid collection frame 21 at the bottom collects any excess paint that falls. Once a certain amount is collected, it is pumped back into the guide frame 32 through the return pipe 35 for reuse. The rotating rod 26 drives the stirring blade 30 to rotate inside the loading cylinder 25, which stirs the paint, making it easy to mix and preventing the paint from solidifying. After the painting is completed, the threaded rod 23 is rotated again to extend the linkage frame 4 and raise it through the electric telescopic rod 2. The equipment is then moved away by the casters 36.

Claims

1. An environmentally friendly coating application device for bridge maintenance, comprising a base frame (1), characterized in that: Electric telescopic rods (2) are fixedly connected to both sides of the top of the base frame (1) through openings. A U-shaped sliding frame (3) is fixedly connected between the top ends of the two electric telescopic rods (2). A linkage frame (4) is slidably installed on the inner side of the U-shaped sliding frame (3). A threaded seat (22) is fixedly connected to the rear of the U-shaped sliding frame (3) through a bracket. A threaded rod (23) is threadedly connected to the inner side of the threaded seat (22). The front end of the threaded rod (23) is rotatably connected to the rear of the linkage frame (4) through a bearing. A rotating groove (5) is provided on the lower part of the surface of the base frame (1). A roller (6) is rotatably connected between the top and bottom of the inner cavity of the rotating groove (5) through a bearing. There are three rollers (6). A motor (7) is fixedly connected to the bottom of the base frame (1) through a bracket. The output shaft of the motor (7) is fixedly connected to a telescopic rod (8) through a coupling. The top of the telescopic rod (8) passes through the base frame (1), the U-shaped sliding frame (3), and the roller (6) in the middle and extends to the linkage frame (3). Inside the inner side of the linkage frame (4), the front of both sides of the inner cavity of the linkage frame (4) is fixedly connected with a first sliding plate (9), and a sliding block (10) slides between the two first sliding plates (9). A first spring (11) is connected between the sliding block (10) and the inner wall of the linkage frame (4). The bottom of the sliding block (10) is rotatably connected to a hollow rotating rod (12) through a bearing component, and the top of the hollow rotating rod (12) passes through the sliding block (10) and the linkage frame (4) in sequence and extends to the top of the linkage frame (4). The right side of the linkage frame (4) is fixedly connected to a second slide plate (13), and a slider column (14) is slidably installed on the inner side of the second slide plate (13). A second spring (15) is fixedly connected between the slider column (14) and the inner wall of the second slide plate (13). The top of the slider column (14) and the surfaces of the hollow rotating rod (12) and the telescopic rod (8) are all connected to a first pulley (16). The three first pulleys (16) are connected by a first belt (17). A telescopic port (18) is opened on one side of the linkage frame (4) to cooperate with the first belt (17).

2. The environmentally friendly coating application device for bridge maintenance according to claim 1, characterized in that: The bottom end of the hollow rotating rod (12) is fixedly connected to a mesh cylinder (19), and a paint sleeve (20) is fitted on the surface of the mesh cylinder (19). The bottom end of the mesh cylinder (19) is rotatably connected to a liquid collection frame (21) that cooperates with the paint sleeve (20) through a bearing component.

3. The environmentally friendly coating application device for bridge maintenance according to claim 1, characterized in that: A load-bearing plate (24) is fixedly connected to the rear of the base frame (1). A loading cylinder (25) is fixedly connected to both sides of the top of the load-bearing plate (24). A rotating rod (26) is rotatably connected to the bottom of the inner cavity of the loading cylinder (25) through a bearing. The bottom end of the rotating rod (26) passes through the loading cylinder (25) and the load-bearing plate (24) in sequence and extends to the lower part of the load-bearing plate (24). A driven rod (27) is rotatably connected to the bottom of the load-bearing plate (24) between the two rotating rods (26) through a bearing. The telescopic rod (8), the driven rod (27) and the two rotating rods (26) are connected by a second pulley (28) and a second belt (29). A stirring blade (30) is fixedly connected to the surface of the rotating rod (26) and inside the loading cylinder (25).

4. The environmentally friendly coating application device for bridge maintenance according to claim 3, characterized in that: A water pump (31) is fixedly connected to the left side of the top of the base frame (1). A liquid guide frame (32) that is connected to the hollow rotating rod (12) is fixedly connected to the top of the linkage frame (4). A double-headed guide pipe (33) is connected to the rear of the water pump (31). The two ends of the double-headed guide pipe (33) extend to the inside of the two loading cylinders (25).

5. The environmentally friendly coating application device for bridge maintenance according to claim 4, characterized in that: The top of the water pump (31) is connected to a discharge pipe (34), and one end of the discharge pipe (34) is connected to the liquid guide frame (32). The front of the water pump (31) is connected to a return pipe (35), and one end of the return pipe (35) passes through the liquid collection frame (21) and extends to the inside of the liquid collection frame (21).

6. The environmentally friendly coating application device for bridge maintenance according to claim 3, characterized in that: Both sides of the bottom of the base frame (1) and the load-bearing plate (24) are fixedly connected to casters (36) by brackets.

Citation Information

Patent Citations

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    CN113073818A

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