Anti-corrosion coating device for water conservancy pipelines

By designing an anti-corrosion coating device for water conservancy pipelines, a synchronous spraying of the inner and outer walls of the pipeline is achieved by using a motor-driven threaded rod and gear system. This solves the problem of simultaneous spraying in existing technologies and improves spraying efficiency and coating quality.

CN224271654UActive Publication Date: 2026-05-26QINGHAI SHOUZE WATER CONSERVANCY & HYDROPOWER ENGINEERING CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGHAI SHOUZE WATER CONSERVANCY & HYDROPOWER ENGINEERING CO LTD
Filing Date
2025-05-22
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing spraying equipment cannot simultaneously spray the inner and outer walls of water conservancy pipelines, resulting in low spraying efficiency, increased construction time and costs, and the need for multiple equipment adjustments or changes in operating procedures can easily lead to operational errors, affecting the uniformity and quality stability of the coating.

Method used

A corrosion-resistant coating device for water conservancy pipelines was designed. It achieves synchronous spraying of the inner and outer walls of the pipeline by driving a threaded rod and a gear system with two motors. The first motor drives the first threaded rod and gear system to rotate, so that the spray head on the inner wall of the pipeline moves axially for spraying. The second motor drives the second threaded rod and the limiting block system, so that the spray ring on the outer wall of the pipeline moves axially for spraying.

Benefits of technology

It enables simultaneous spraying of the inner and outer walls of the pipe, saving construction time, improving spraying efficiency and coating uniformity, avoiding operational errors, and ensuring the quality stability of the coating.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224271654U_ABST
    Figure CN224271654U_ABST
Patent Text Reader

Abstract

This utility model relates to the field of water conservancy pipeline technology, specifically to an anti-corrosion coating device for water conservancy pipelines. It includes an operating platform with two symmetrical support plates fixedly connected to its top. One of the support plates has an inlet / outlet port on its outer wall, and a sealing plate is detachably engaged within the inlet / outlet port. This utility model can simultaneously coat the inner and outer walls of a pipeline without requiring separate steps, saving construction time. A first motor drives a first threaded rod to rotate, a sliding block drives a fixed sleeve to rotate synchronously, and a first gear on the fixed sleeve drives a second gear to rotate. Since the second gear meshes with a gear ring, it drives a second rotating ring to rotate, ultimately causing the pipeline to rotate. Simultaneously, the first motor drives the first threaded rod to rotate, causing the spray head to move axially along the pipeline to spray the inner wall; at the same time, the second motor drives the second threaded rod to rotate, causing the spray ring to move axially along the pipeline to spray the outer wall, achieving synchronous spraying.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of water conservancy pipeline technology, and specifically to an anti-corrosion coating device for water conservancy pipelines. Background Technology

[0002] In water conservancy projects, corrosion prevention of water pipelines is a key aspect of ensuring their long-term stable operation. During long-term use, water pipelines are susceptible to corrosion on both the inner and outer walls due to erosion from water flow, silt, and chemicals, which affects the service life of the pipelines and the safety of water transmission.

[0003] Existing spraying equipment typically requires first coating the inner wall of the pipe. After the inner wall coating is completed, the equipment must be readjusted or the operating procedure changed before the outer wall of the pipe can be coated. This step-by-step spraying method not only results in low overall spraying efficiency and increased construction time costs, but also makes it easy for operational errors to occur due to repeated equipment adjustments or changes in operating procedures, affecting the uniformity and quality stability of the coating. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the existing technology, the present invention provides an anti-corrosion coating device for water conservancy pipelines, which can effectively solve the problem that the inner and outer walls of the pipeline cannot be sprayed at the same time in the existing technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] This utility model provides an anti-corrosion coating device for water conservancy pipelines, including an operating platform. Two symmetrical support plates are fixedly connected to the top of the operating platform. One of the support plates has an inlet and outlet on its outer wall. A sealing plate is detachably snapped into the inlet and outlet. A first rotating ring is rotatably connected to the outer wall of the sealing plate. Two symmetrical first electric telescopic rods are fixedly connected to the outer wall of the other support plate. A fixing ring is fixedly connected to the telescopic end of the first electric telescopic rod. A second rotating ring is rotatably connected to the outer wall of the fixing ring. The first rotating ring and the second rotating ring together clamp the pipeline.

[0007] According to the above-mentioned anti-corrosion coating device for water conservancy pipelines, a first motor is fixedly connected to the outer wall of one of the support plates, a first threaded rod is fixedly connected to the output end of the first motor, a snap-fit ​​connector is rotatably connected to the other end of the first threaded rod, and a snap-fit ​​interface is opened on the outer wall of the sealing plate, and the snap-fit ​​interface snaps into the snap-fit ​​connector.

[0008] According to the above-mentioned anti-corrosion coating device for water conservancy pipelines, a sliding groove is provided on the outer wall of the first threaded rod, a sliding block is slidably connected to the inner wall of the sliding groove, a fixed sleeve is fixedly connected to the outer wall of the sliding block, a rotating ring is rotatably connected to the outer wall of the fixed sleeve, and an arc-shaped piece is fixedly connected between the rotating ring and the fixed ring.

[0009] According to the above-mentioned anti-corrosion coating device for water conservancy pipelines, a first gear is fixedly connected to the outer wall of the fixed sleeve, a connecting rod is fixedly connected to the outer wall of the arc-shaped plate, a second gear is fixedly connected to the outer wall of the connecting rod, and a toothed ring is fixedly connected to the inner circumferential wall of the second rotating ring. The first gear meshes with the second gear, and the second gear meshes with the toothed ring.

[0010] According to the above-mentioned anti-corrosion coating device for water conservancy pipelines, a first limiting rod is fixedly connected between the two support plates. A threaded ring is threadedly connected to the outer wall of the first threaded rod. A spray head is fixedly connected to the outer wall of the threaded ring. The first limiting rod slides through the spray head. The water inlet pipe of the spray head extends to the outside of one of the support plates and is connected to the external liquid coating tank. The spray head is used to spray the coating onto the inner wall of the pipeline.

[0011] According to the above-mentioned anti-corrosion coating device for water conservancy pipelines, a second threaded rod is rotatably arranged between the two support plates, and a second limiting rod is fixedly arranged. A threaded block is threadedly sleeved on the outer wall of the second threaded rod, and a limiting block is slidably connected to the outer wall of the second limiting rod. A spraying ring is fixedly connected to the outer wall of the limiting block and the threaded block. A second motor is fixedly connected to the outer wall of one of the support plates. The output end of the second motor is fixedly connected to the second threaded rod. The water supply pipe of the spraying ring extends to the outside of one of the support plates and is connected to the external liquid coating tank. The spraying ring is used to spray coating on the outer wall of the pipeline.

[0012] According to the aforementioned anti-corrosion coating device for water conservancy pipelines, two symmetrical second electric telescopic rods are fixedly connected to the top of the operating platform, and arc-shaped support blocks are fixedly connected to the telescopic ends of the second electric telescopic rods.

[0013] The technical solution provided by this utility model has the following advantages compared with the known prior art:

[0014] This invention can simultaneously coat the inner and outer walls of a pipe without requiring separate steps, saving construction time. A first motor drives a first threaded rod to rotate, a sliding block drives a fixed sleeve to rotate synchronously, and a first gear on the fixed sleeve drives a second gear to rotate. Since the second gear meshes with a gear ring, it drives a second rotating ring to rotate, ultimately causing the pipe to rotate. Simultaneously, the first motor drives the first threaded rod to rotate, causing the spray head to move axially along the pipe to spray the inner wall; at the same time, the second motor drives the second threaded rod to rotate, causing the spray ring to move axially along the pipe to spray the outer wall, achieving synchronous spraying. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 3 ;

[0019] Figure 4 This is a partial three-dimensional structural diagram of the present invention.

[0020] Reference numerals in the attached drawings: 1. Operating platform; 2. Support plate; 3. Inlet / outlet; 4. Sealing plate; 5. First rotating ring; 6. First electric telescopic rod; 7. Fixed ring; 8. Second rotating ring; 9. First motor; 10. First threaded rod; 11. Snap connector; 12. Snap interface; 13. Sliding groove; 14. Sliding block; 15. Fixed sleeve; 16. Rotating ring; 17. Arc-shaped piece; 18. First gear; 19. Connecting rod; 20. Second gear; 21. Gear ring; 22. First limiting rod; 23. Threaded ring; 24. Spray head; 25. Second threaded rod; 26. Second limiting rod; 27. Threaded block; 28. Limiting block; 29. ​​Spray ring; 30. Second motor; 31. Second electric telescopic rod; 32. Arc-shaped support block. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0022] The present invention will be further described below with reference to the embodiments.

[0023] Example: Refer to Figures 1 to 4 A corrosion-resistant coating device for water conservancy pipelines includes an operating platform 1. Two symmetrical support plates 2 are fixedly connected to the top of the operating platform 1. One of the support plates 2 has an inlet / outlet port 3 on its outer wall. A sealing plate 4 is detachably snapped into the inlet / outlet port 3. A first rotating ring 5 is rotatably connected to the outer wall of the sealing plate 4. Two symmetrical first electric telescopic rods 6 are fixedly connected to the outer wall of the other support plate 2. A fixing ring 7 is fixedly connected to the telescopic end of the first electric telescopic rod 6. A second rotating ring 8 is rotatably connected to the outer wall of the fixing ring 7. The first rotating ring 5 and the second rotating ring 8 together clamp the pipeline.

[0024] One of the support plates 2 has a first motor 9 fixedly connected to its outer wall. The output end of the first motor 9 is fixedly connected to a first threaded rod 10. The other end of the first threaded rod 10 is rotatably connected to a snap connector 11. The outer wall of the sealing plate 4 has a snap interface 12, which snaps into the snap connector 11.

[0025] The outer wall of the first threaded rod 10 is provided with a sliding groove 13, the inner wall of the sliding groove 13 is slidably connected with a sliding block 14, the outer wall of the sliding block 14 is fixedly connected with a fixed sleeve 15, the outer wall of the fixed sleeve 15 is rotatably connected with a rotating ring 16, and an arc-shaped piece 17 is fixedly connected between the rotating ring 16 and the fixed ring 7.

[0026] The outer wall of the fixed sleeve 15 is fixedly connected to the first gear 18, the outer wall of the arc-shaped piece 17 is fixedly connected to the connecting rod 19, the outer wall of the connecting rod 19 is fixedly connected to the second gear 20, and the inner circumferential wall of the second rotating ring 8 is fixedly connected to the toothed ring 21. The first gear 18 meshes with the second gear 20, and the second gear 20 meshes with the toothed ring 21.

[0027] A first limiting rod 22 is fixedly connected between two support plates 2. A threaded ring 23 is threadedly connected to the outer wall of the first threaded rod 10. A spray head 24 is fixedly connected to the outer wall of the threaded ring 23. The first limiting rod 22 slides through the spray head 24. The water inlet pipe of the spray head 24 extends to the outside of one of the support plates 2 and is connected to the external liquid coating tank. The spray head 24 is used to spray coating on the inner wall of the pipe.

[0028] A second threaded rod 25 is rotatably arranged between two support plates 2, and a second limiting rod 26 is fixedly arranged. A threaded block 27 is threadedly sleeved on the outer wall of the second threaded rod 25. A limiting block 28 is slidably connected to the outer wall of the second limiting rod 26. A spray ring 29 is fixedly connected to the outer walls of the limiting block 28 and the threaded block 27. A second motor 30 is fixedly connected to the outer wall of one of the support plates 2. The output end of the second motor 30 is fixedly connected to the second threaded rod 25. The water supply pipe of the spray ring 29 extends to the outside of one of the support plates 2 and is connected to the external liquid coating tank. The spray ring 29 is used to spray coating on the outer wall of the pipe.

[0029] Two symmetrical second electric telescopic rods 31 are fixedly connected to the top of the control panel 1, and an arc-shaped support block 32 is fixedly connected to the telescopic end of the second electric telescopic rod 31.

[0030] The working principle of this utility model is as follows:

[0031] First, the pipe is placed on the two arc-shaped support blocks between the first rotating ring 5 and the second rotating ring 8 through the inlet / outlet 3. Then, the sealing plate 4 seals the inlet / outlet 3. During this process, the clamping connector 11 and the clamping interface 12 are engaged. Then, the two first electric telescopic rods 6 are activated, which pushes the moving fixed ring 7 and the second rotating ring 8 connected to it closer to the first rotating ring 5, thereby stably clamping the pipe between the first rotating ring 5 and the second rotating ring 8. After the pipe is fixed, the second electric telescopic rod 31 is activated to retract, so that the arc-shaped support block 32 no longer supports the pipe, allowing the subsequent spraying ring 29 to spray the outer wall of the pipe.

[0032] During the movement of the fixed ring 7, the arc-shaped piece 17 drives the fixed sleeve 15 to move axially on the first threaded rod 10. The movement of the fixed sleeve 15 drives the rotating ring 16, the arc-shaped piece 17, the connecting rod 19 and the second gear 20 to move.

[0033] Then, the first motor 9 is started, which drives the first threaded rod 10 to rotate. The first threaded rod 10 drives the fixed sleeve 15 to rotate, which in turn drives the first gear 18 to rotate. The first gear 18 drives the second gear 20 to rotate, which in turn drives the gear ring 21 to rotate. Therefore, the second rotating ring 8 can be driven to rotate. When the second rotating ring 8 rotates during the clamping of the pipe, the gear ring 21 drives the second gear 20 to rotate, which in turn drives the first gear 18 to rotate, which in turn causes the rotating ring 16 to rotate, thereby driving the pipe to rotate.

[0034] While the first threaded rod 10 rotates, the threaded ring 23 moves on the first threaded rod 10. Since the first limiting rod 22 slides through the spray head 24, it guides and limits the movement of the spray head 24, ensuring that the spray head 24 moves smoothly along the pipeline axis. The water inlet pipe of the spray head 24 is connected to the external liquid coating tank. During the movement and rotation, the liquid coating is evenly sprayed on the inner wall of the pipeline.

[0035] By starting the second motor 30, the output end of the second motor 30 drives the second threaded rod 25 to rotate, and the threaded block 27 moves axially on the second threaded rod 25. At the same time, the limiting block 28 slides on the second limiting rod 26, which guides and limits the movement of the threaded block 27. The threaded block 27 and the limiting block 28 together drive the spraying ring 29 to move axially along the pipeline. The water supply pipe of the spraying ring 29 is connected to the external liquid coating tank. During the movement, the liquid coating is evenly sprayed on the outer wall of the pipeline.

[0036] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A corrosion-resistant coating device for water conservancy pipelines, characterized in that, The system includes an operating table (1), with two symmetrical support plates (2) fixedly connected to the top of the operating table (1). One of the support plates (2) has an inlet / outlet port (3) on its outer wall. A sealing plate (4) is detachably snapped into the inlet / outlet port (3). A first rotating ring (5) is rotatably connected to the outer wall of the sealing plate (4). The other support plate (2) has two symmetrical first electric telescopic rods (6) fixedly connected to its outer wall. A fixing ring (7) is fixedly connected to the telescopic end of the first electric telescopic rod (6). A second rotating ring (8) is rotatably connected to the outer wall of the fixing ring (7). The first rotating ring (5) and the second rotating ring (8) together clamp the pipe.

2. The anti-corrosion coating device for water conservancy pipelines according to claim 1, characterized in that, One of the support plates (2) is fixedly connected to the outer wall of a first motor (9), the output end of the first motor (9) is fixedly connected to a first threaded rod (10), the other end of the first threaded rod (10) is rotatably connected to a snap connector (11), the outer wall of the sealing plate (4) is provided with a snap interface (12), and the snap interface (12) is snapped into the snap connector (11).

3. The anti-corrosion coating device for water conservancy pipelines according to claim 2, characterized in that, The outer wall of the first threaded rod (10) is provided with a sliding groove (13), the inner wall of the sliding groove (13) is slidably connected with a sliding block (14), the outer wall of the sliding block (14) is fixedly connected with a fixed sleeve (15), the outer wall of the fixed sleeve (15) is rotatably connected with a rotating ring (16), and an arc-shaped piece (17) is fixedly connected between the rotating ring (16) and the fixed ring (7).

4. The anti-corrosion coating device for water conservancy pipelines according to claim 3, characterized in that, The outer wall of the fixed sleeve (15) is fixedly connected to a first gear (18), the outer wall of the arc-shaped piece (17) is fixedly connected to a connecting rod (19), the outer wall of the connecting rod (19) is fixedly connected to a second gear (20), the inner circumferential wall of the second rotating ring (8) is fixedly connected to a toothed ring (21), the first gear (18) meshes with the second gear (20), and the second gear (20) meshes with the toothed ring (21).

5. The anti-corrosion coating device for water conservancy pipelines according to claim 4, characterized in that, A first limiting rod (22) is fixedly connected between the two support plates (2). A threaded ring (23) is threadedly connected to the outer wall of the first threaded rod (10). A spray head (24) is fixedly connected to the outer wall of the threaded ring (23). The first limiting rod (22) slides through the spray head (24). The water inlet pipe of the spray head (24) extends to the outside of one of the support plates (2) and is connected to the liquid coating tank in the outside. The spray head (24) is used to spray coating on the inner wall of the pipe.

6. The anti-corrosion coating device for water conservancy pipelines according to claim 5, characterized in that, A second threaded rod (25) is rotatably arranged between the two support plates (2), and a second limiting rod (26) is fixedly arranged. A threaded block (27) is threadedly sleeved on the outer wall of the second threaded rod (25), and a limiting block (28) is slidably connected to the outer wall of the second limiting rod (26). A spray ring (29) is fixedly connected to the outer wall of the limiting block (28) and the threaded block (27). A second motor (30) is fixedly connected to the outer wall of one of the support plates (2). The output end of the second motor (30) is fixedly connected to the second threaded rod (25). The water supply pipe of the spray ring (29) extends to the outside of one of the support plates (2) and is connected to the liquid coating tank in the outside. The spray ring (29) is used to spray coating on the outer wall of the pipe.

7. The anti-corrosion coating device for water conservancy pipelines according to claim 6, characterized in that, The top of the operating table (1) is fixedly connected to two symmetrical second electric telescopic rods (31), and the telescopic ends of the second electric telescopic rods (31) are fixedly connected to arc-shaped support blocks (32).