Uniform spraying equipment for coating of anti-corrosion pipe

By designing a spraying equipment with a support bracket, clamping fixture, and moving spraying components, the problem of not being able to spray the inner and outer walls of anti-corrosion pipes simultaneously was solved, achieving synchronous and uniform spraying, improving production efficiency and reducing costs.

CN224127595UActive Publication Date: 2026-04-17INNER MONGOLIA YANDA SHUNTONG PIPE IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
INNER MONGOLIA YANDA SHUNTONG PIPE IND CO LTD
Filing Date
2025-05-12
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing anti-corrosion pipe spraying equipment cannot simultaneously spray the inner and outer walls, requiring additional equipment, which affects production efficiency and increases costs.

Method used

Design a spraying device that includes a support bracket, clamping fixture, mounting frame, and moving spraying assembly. The device utilizes a hydraulic cylinder and a moving ring to achieve synchronous spraying of the inner and outer walls of the anti-corrosion pipe. The device uses a moving polygonal block and a moving ring in conjunction with the anti-corrosion coating nozzle to achieve uniform spraying.

Benefits of technology

This method enables simultaneous and uniform spraying of the inner and outer walls of anti-corrosion pipes, improving production efficiency, reducing production costs, and avoiding the drawbacks of step-by-step operations.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses uniform spraying equipment for an anticorrosive pipe coating, which relates to the technical field of spraying and comprises two support brackets, a clamping fixture is fixedly mounted at the upper end of each support bracket, each clamping fixture consists of two hydraulic cylinders and a moving ring, the two hydraulic cylinders are symmetrically and fixedly mounted at the outer end of the moving ring, and the two hydraulic cylinders are symmetrically and fixedly mounted at the outer end of the moving ring. Wherein a mounting frame is fixedly mounted at the upper end of one supporting bracket, a movable spraying assembly is slidably mounted on the mounting frame, and by arranging the spraying device composed of the supporting brackets, the clamping clamps, the mounting frame and the movable spraying assembly, uniform spraying of the inner wall and the outer wall of the anti-corrosion pipe can be achieved at the same time, the production efficiency is remarkably improved, and the production cost is reduced. The design of a hydraulic cylinder and a movable ring in the clamping fixture ensures stable fixation of the pipe fitting, a movable polygonal block and a movable ring structure of the movable spraying assembly are matched with the arrangement of an anti-corrosion coating nozzle, synchronous spraying of the inner wall and the outer wall is achieved, and the defect that traditional equipment needs to be operated step by step is overcome.
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Description

Technical Field

[0001] This utility model relates to the field of spraying technology, and in particular to a uniform spraying device for anti-corrosion pipe coating. Background Technology

[0002] Corrosion-resistant pipes are pipeline products that have undergone special anti-corrosion treatment and are widely used in important fields such as oil and gas transportation, chemical production, urban water supply and drainage, and marine engineering. During the production and processing of corrosion-resistant pipes, it is usually necessary to simultaneously apply anti-corrosion coatings to both the inner and outer walls. However, existing technologies, such as the spraying device proposed in patent application number CN202321507122.0, have significant limitations: this device can only perform spraying operations on the outer wall of the corrosion-resistant pipe and cannot simultaneously complete the spraying of the inner wall. When inner wall anti-corrosion treatment is required, manufacturers have to configure additional specialized equipment, which not only reduces the practicality and economy of the equipment but also seriously affects overall production efficiency and increases production costs. Utility Model Content

[0003] The main purpose of this invention is to provide a uniform spraying device for anti-corrosion pipe coating, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A uniform coating spraying device for anti-corrosion pipes includes two support brackets. A clamping fixture is fixedly installed at the upper end of each support bracket. The clamping fixture consists of a hydraulic cylinder and a moving ring. Two hydraulic cylinders are symmetrically fixedly installed at the outer end of the moving ring. A mounting frame is fixedly installed at the upper end of one of the support brackets. A movable spraying assembly is slidably mounted on the mounting frame. The movable spraying assembly consists of a support plate, a connecting plate, a movable polygonal block, a connecting block, a movable ring, and anti-corrosion coating nozzles. Two support plates are symmetrically fixedly installed at one end of the connecting plate. The movable polygonal block is fixedly installed at one end of the lower support plate. The connecting block is fixedly installed at one end of the upper support plate. The movable ring is fixedly installed at one end of the connecting block and simultaneously sleeved on the outer side of the movable polygonal block. Several anti-corrosion coating nozzles are respectively fixedly installed on the outer wall of the connecting plate and the inner wall of the movable ring.

[0006] Preferably, the support bracket consists of a support rod and a U-shaped frame, the U-shaped frame is fixedly installed on the upper end of the support rod, and the support rods on both support brackets are fixedly installed on the upper end of the base plate.

[0007] Preferably, the hydraulic cylinder on the clamping fixture is fixedly installed on the upper end of the U-shaped frame, the moving ring is located between two support brackets, and the inner end of the moving ring is provided with an annular groove.

[0008] Preferably, the mounting frame consists of a base rod and a rectangular tube, with the rectangular tube fixedly installed at the upper end of the base rod and the base rod fixedly installed on the inner wall of the U-shaped frame.

[0009] Preferably, the support plate on the lower side of the mobile spraying assembly is slidably mounted inside a rectangular tube on the mounting frame, and the connecting plate is located on the outside of the rectangular tube.

[0010] Preferably, the movable polygonal block on the movable spraying assembly can pass through the movable ring, and the movable circular ring is fitted on the outside of the movable ring.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] By setting up a spraying device consisting of a support bracket, clamping fixture, mounting frame, and mobile spraying assembly, this equipment can simultaneously achieve uniform spraying of the inner and outer walls of the anti-corrosion pipe, significantly improving production efficiency. The hydraulic cylinder and moving ring design in the clamping fixture ensures the stable fixation of the pipe fittings. The moving polygonal block and moving ring structure of the mobile spraying assembly, in conjunction with the arrangement of the anti-corrosion coating nozzles, realizes synchronous spraying of the inner and outer walls, avoiding the drawbacks of traditional equipment that requires step-by-step operation and reducing production costs. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 For the present utility model Figure 1 A magnified view of point A;

[0015] Figure 3 This is a structural schematic diagram of the support bracket, clamping fixture, and mounting frame of this utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the mobile spraying assembly of this utility model.

[0017] In the diagram: 1. Support bracket; 2. Clamping fixture; 3. Mounting frame; 4. Moving spraying assembly; 5. Base plate; 6. Support rod; 7. U-shaped frame; 8. Hydraulic cylinder; 9. Moving ring; 10. Annular groove; 11. Base rod; 12. Rectangular tube; 13. Support plate; 14. Connecting plate; 15. Moving polygonal block; 16. Connecting block; 17. Moving ring; 18. Anti-corrosion coating nozzle. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0019] Please see Figure 1, Figure 2 , Figure 3 , Figure 4 As shown, a uniform coating spraying device for anti-corrosion pipes includes two support brackets 1. A clamping fixture 2 is fixedly installed on the upper end of each support bracket 1. The clamping fixture 2 consists of a hydraulic cylinder 8 and a moving ring 9. Two hydraulic cylinders 8 are symmetrically fixedly installed on the outer end of the moving ring 9. A mounting frame 3 is fixedly installed on the upper end of one of the support brackets 1. A movable spraying assembly 4 is slidably mounted on the mounting frame 3. The movable spraying assembly 4 consists of a support plate 13, a connecting plate 14, a movable polygonal block 15, a connecting block 16, a moving ring 17, and an anti-corrosion coating nozzle 18. Two support plates 13 are symmetrically fixedly installed on one end of the connecting plate 14. The movable polygonal block 15 is fixedly installed on one end of the lower support plate 13. The connecting block 16 is fixedly installed on one end of the upper support plate 13. The moving ring 17 is fixedly installed on the connecting block 18. At one end of 6, the movable ring 17 is simultaneously fitted onto the outside of the movable polygon block 15. There are several anti-corrosion coating nozzles 18, which are respectively fixedly installed on the outer wall of the connecting plate 14 and the inner wall of the movable ring 17. Before use, the anti-corrosion coating nozzles 18 need to be connected to the anti-corrosion coating conveying equipment through a hose. When in use, the anti-corrosion pipe to be sprayed is placed between two support brackets 1. The hydraulic cylinder 8 of the clamping fixture 2 drives the movable ring 9 to clamp the pipe to ensure that it is firmly fixed. Then, the movable spraying assembly 4 is started, so that it slides along the rectangular tube 12 of the mounting frame 3, driving the movable polygon block 15 and the movable ring 17 to move synchronously. At this time, the anti-corrosion coating nozzles 18 spray evenly on the inner and outer walls of the pipe during the movement, realizing synchronous operation. After the spraying is completed, the equipment is turned off, the hydraulic cylinder 8 releases the movable ring 9, and the sprayed pipe is taken out.

[0020] Specifically, the support bracket 1 consists of a support rod 6 and a U-shaped frame 7. The U-shaped frame 7 is fixedly installed on the upper end of the support rod 6. The support rods 6 on both support brackets 1 are fixedly installed on the upper end of the base plate 5. The equipment is fixed in the working area by the base plate 5 to ensure that the support bracket 1 is stable. The position of the support bracket 1 can be adjusted to accommodate pipes of different lengths.

[0021] Specifically, the hydraulic cylinder 8 on the clamping fixture 2 is fixedly installed on the upper end of the U-shaped frame 7, and the moving ring 9 is located between the two support brackets 1. The inner end of the moving ring 9 is provided with an annular groove 10. When fixing the pipe fitting, the pipe fitting needs to be inserted into the annular groove 10. When the hydraulic cylinder 8 drives the moving ring 9 to clamp the pipe fitting, the annular groove 10 can enhance the clamping stability and prevent the pipe fitting from sliding. At the same time, the moving ring 9 can be replaced according to the pipe diameter of different pipe fittings.

[0022] Specifically, the mounting frame 3 consists of a base rod 11 and a rectangular tube 12. The rectangular tube 12 is fixedly installed on the upper end of the base rod 11, and the base rod 11 is fixedly installed on the inner wall of the U-shaped frame 7. The movable spraying assembly 4 slides inside the rectangular tube 12 through the support plate 13 to ensure the linear motion accuracy during the spraying process.

[0023] Specifically, the lower support plate 13 of the mobile spraying assembly 4 is slidably installed inside the rectangular tube 12 on the mounting frame 3. The connecting plate 14 is located outside the rectangular tube 12. The movable polygonal block 15 on the mobile spraying assembly 4 can pass through the movable ring 9. The movable circular ring 17 is fitted on the outside of the movable ring 9. The position and number of anti-corrosion coating nozzles 18 can be set according to the diameter of the pipe fitting, so as to ensure that the pipe fitting can be uniformly sprayed with anti-corrosion coating by the anti-corrosion coating nozzles 18. During spraying, the anti-corrosion coating conveying equipment will deliver the anti-corrosion coating to the anti-corrosion coating nozzles 18 through the hose. The movable polygonal block 15 passes through the movable ring 9 to ensure that the anti-corrosion coating nozzles 18 sprayed on the inner wall are aligned with the inner wall of the pipe fitting. The movable circular ring 17 is fitted on the outside of the movable ring 9 so that the anti-corrosion coating nozzles 18 sprayed on the outer wall uniformly cover the outer wall of the pipe fitting.

[0024] Finally, by setting up a spraying device consisting of a support bracket 1, a clamping fixture 2, a mounting frame 3, and a moving spraying assembly 4, the equipment can simultaneously achieve uniform spraying of the inner and outer walls of the anti-corrosion pipe, significantly improving production efficiency. The hydraulic cylinder 8 and the moving ring 9 in the clamping fixture 2 ensure the stable fixing of the pipe fitting. The moving polygonal block 15 and the moving ring 17 of the moving spraying assembly 4 are arranged in conjunction with the anti-corrosion coating nozzle 18 to achieve synchronous spraying of the inner and outer walls, avoiding the drawbacks of traditional equipment that requires step-by-step operation and reducing production costs.

[0025] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. An anticorrosive pipe coating uniform spraying apparatus, characterized by: The system includes two support brackets (1), each with a clamping fixture (2) fixedly mounted on its upper end. Each clamping fixture (2) consists of a hydraulic cylinder (8) and a moving ring (9). Two hydraulic cylinders (8) are symmetrically fixedly mounted on the outer ends of the moving ring (9). One of the support brackets (1) has a mounting frame (3) fixedly mounted on its upper end. A movable spraying assembly (4) is slidably mounted on the mounting frame (3). The movable spraying assembly (4) consists of a support plate (13), a connecting plate (14), a movable polygonal block (15), a connecting block (16), and a movable ring (17). It consists of a support plate (13) and an anti-corrosion coating nozzle (18). There are two support plates (13) that are symmetrically fixedly installed at one end of the connecting plate (14). The movable polygonal block (15) is fixedly installed at one end of the lower support plate (13). The connecting block (16) is fixedly installed at one end of the upper support plate (13). The movable ring (17) is fixedly installed at one end of the connecting block (16). The movable ring (17) is also sleeved on the outside of the movable polygonal block (15). There are several anti-corrosion coating nozzles (18) that are respectively fixedly installed on the outer wall of the connecting plate (14) and the inner wall of the movable ring (17).

2. A uniform spray coating apparatus for anticorrosive pipe coating according to claim 1, characterized in that: The support bracket (1) consists of a support rod (6) and a U-shaped frame (7). The U-shaped frame (7) is fixedly installed on the upper end of the support rod (6). The support rods (6) on both support brackets (1) are fixedly installed on the upper end of the base plate (5).

3. A uniform spray coating apparatus for anticorrosive pipe coating according to claim 2, characterized in that: The hydraulic cylinder (8) on the clamping fixture (2) is fixedly installed on the upper end of the U-shaped frame (7), the moving ring (9) is located between the two support brackets (1), and the inner end of the moving ring (9) is provided with an annular groove (10).

4. A uniform spray coating apparatus for anticorrosive pipe coating according to claim 3, characterized in that: The mounting frame (3) consists of a base rod (11) and a rectangular tube (12). The rectangular tube (12) is fixedly installed on the upper end of the base rod (11), and the base rod (11) is fixedly installed on the inner wall of the U-shaped frame (7).

5. A uniform spray coating apparatus for anticorrosive pipe coating according to claim 4, characterized in that: The lower support plate (13) of the mobile spraying assembly (4) is slidably mounted inside the rectangular tube (12) on the mounting bracket (3), and the connecting plate (14) is located outside the rectangular tube (12).

6. A uniform spray coating apparatus for anticorrosive pipe coating according to claim 5, characterized in that: The movable polygonal block (15) on the movable spraying assembly (4) can pass through the movable ring (9), and the movable circular ring (17) is fitted on the outside of the movable ring (9).

Citation Information

Patent Citations

  • Spraying device for anti-corrosion pipe production

    CN220126625U