An external paint spraying apparatus for pipeline anticorrosion processing

The external painting equipment, guided by a circular rail and driven by a servo motor, solves the problem of uneven spraying during the movement of pipeline painting equipment, achieving full coverage and stable spraying of the outer surface of the pipeline, and adapting to different pipeline lengths.

CN224405470UActive Publication Date: 2026-06-26JIANGSU SHUNCHUANG ANTICORROSION TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU SHUNCHUANG ANTICORROSION TECHNOLOGY CO LTD
Filing Date
2025-05-29
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

In existing technologies, pipeline painting equipment is difficult to control precisely during movement, leading to problems such as missed spraying and uneven thickness of the anti-corrosion coating, which affects the anti-corrosion effect.

Method used

An external spray painting device is adopted, which uses a ring rail to guide the spray gun and combines a servo motor to drive the turntable and limit post to achieve uniform spraying along the outer circumference of the pipe. At the same time, the turntable pushes the pipe to move horizontally to ensure full coverage.

Benefits of technology

It achieves uniform painting on the outer surface of the pipeline, ensuring that the anti-corrosion coating has no dead corners, improving the painting quality and equipment stability, and adapting to different pipeline lengths.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224405470U_ABST
    Figure CN224405470U_ABST
Patent Text Reader

Abstract

The utility model discloses an outer paint spraying equipment for pipeline anticorrosive processing relates to pipeline maintenance technical field, including the bottom plate, the both sides of bottom plate's top all are installed with the side plate, the outside of side plate all is provided with servo motor, the center of side plate is installed with the locating seat, and the sliding axle is slidably connected to the side plate through the locating seat, and one end of sliding axle is fixedly connected with the carousel, and the surface of carousel is provided with the arc slot at the equal interval, and the lateral wall of side plate is provided with the rotary hole, and the rotary axle is inserted to the side plate through the rotary hole, and the outer lateral wall rotation is connected with the swing lever of rotary axle, and the utility model discloses the guidance of annular track to paint spraying gun, makes it can around the pipeline periphery and spray the paint of containing anticorrosive material, and the carousel drives the rotation of pipeline, and the sliding axle and the locating seat cooperate and make the carousel push the translation of pipeline, increase single paint spraying area, make each part of pipeline can be even painted, ensure that anticorrosive processing has no dead angle, and the outer surface of pipeline is covered comprehensively, and the quality of pipeline paint spraying is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of pipeline maintenance technology, and in particular to an external spraying equipment for pipeline anti-corrosion processing. Background Technology

[0002] Pipeline corrosion protection is a process that involves treating the surface of pipelines and applying an anti-corrosion layer to isolate them from external corrosive media, thereby extending their service life. The process typically includes surface rust removal to remove oil, rust, and other impurities, ensuring a clean and rough surface. Then, depending on the requirements, methods such as painting, wrapping with anti-corrosion tape, or hot-melt epoxy powder coating are used to form the anti-corrosion layer. Therefore, painting is a crucial step in the corrosion protection process.

[0003] However, in existing technologies, pipe painting requires complete surface coverage, necessitating the simultaneous horizontal and vertical movement of the painting equipment along the pipe. This process is cumbersome, as the equipment's movement trajectory requires precise control; even slight deviations can easily lead to missed areas, resulting in incomplete spraying, uneven coating thickness, and ultimately affecting the overall anti-corrosion effect. This process demands high equipment precision and standardized operation, requiring strict control of the movement rhythm and spraying angle during construction to ensure a uniform and dense protective coating on the pipe surface. Utility Model Content

[0004] The purpose of this utility model is to solve the problems existing in the prior art by proposing an external spraying equipment for pipeline anti-corrosion processing.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an external spray painting device for pipeline anti-corrosion processing, comprising a base plate, side plates installed on both sides of the top of the base plate, servo motors provided on the outer sides of the side plates, a positioning seat installed at the center of the side plate, a sliding shaft slidably connected to the side plate through the positioning seat, a turntable fixedly connected to one end of the sliding shaft, arc grooves evenly spaced on the surface of the turntable, a rotating hole provided on the side wall of the side plate, a rotating shaft inserted into the side plate through the rotating hole, a swing rod rotatably connected to the outer wall of the rotating shaft, a limit post fixedly connected to one end of the swing rod, the limit post slidably connected to the inner wall of the arc groove, an annular rail provided at the center of the top surface of the base plate, a paint gun movably connected to the inner wall of the annular rail, and the painting operation of the pipeline outer surface is performed by rotating the paint gun around the annular rail.

[0006] Preferably, a sliding shaft is provided at each of the four corners of the bottom of the base plate, and a shim is provided at the bottom of the annular rail.

[0007] Preferably, a connecting frame is fixedly connected to the bottom of the servo motor, and a guide column is fixedly connected to one side of the connecting frame.

[0008] Preferably, a guide seat is fixedly connected to the bottom end of the base plate, and the guide column is slidably connected inside the guide seat.

[0009] Preferably, the outer wall of the limiting post is provided with an anti-slip sleeve, and the surface of the anti-slip sleeve is provided with fine texture.

[0010] Preferably, a corner bracket is provided between the base plate and the side plate, and the surface of the base plate has a threaded hole, and the corner bracket is installed on the threaded hole by screws.

[0011] Preferably, the inner wall of the annular track is coated with lubricant, and a counterweight is provided at the bottom end of the bottom column.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, the paint gun is guided by a ring rail so that it can spray paint containing anti-corrosion material around the outer perimeter of the pipe. At the same time, the turntable drives the pipe to rotate, and the sliding shaft cooperates with the positioning seat to make the turntable push the pipe to move horizontally, increasing the single spraying area and ensuring that all parts of the pipe can be sprayed evenly, ensuring that there are no dead corners in the anti-corrosion process, fully covering the outer surface of the pipe, and improving the quality of pipe painting.

[0014] 2. In this utility model, the side plate adjusts the spacing by matching the corner piece with different threaded holes on the base plate to accommodate pipes of different lengths; the servo motor moves stably by matching the connecting frame, guide column and guide seat, and the anti-slip sleeve on the outside of the limit column prevents the pipe from detaching, thus improving the stability of the equipment. Attached Figure Description

[0015] Figure 1 This utility model provides a three-dimensional structural diagram of an external spray painting device for pipeline anti-corrosion processing;

[0016] Figure 2 This utility model provides a schematic diagram of the principle of an external spray painting device for pipeline anti-corrosion processing;

[0017] Figure 3 This utility model provides a schematic diagram of the surrounding structure of the side plate in an external spray painting equipment for pipeline anti-corrosion processing;

[0018] Figure 4 This utility model provides a partial structural breakdown diagram of the side plate in an external spray painting equipment for pipeline anti-corrosion processing.

[0019] Legend: 1. Servo motor; 2. Base plate; 3. Connecting frame; 4. Base column; 5. Circular rail; 6. Positioning seat; 7. Side plate; 8. Limiting column; 9. Turntable; 10. Rotating shaft; 11. Arc groove; 12. Sliding shaft; 13. Swing rod; 14. Rotating hole; 15. Guide column; 16. Guide seat. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] Example 1: As Figure 1-4 As shown, this utility model provides an external painting device for pipeline anti-corrosion processing, including a base plate 2, side plates 7 installed on both sides of the top of the base plate 2, servo motors 1 installed on the outer side of each side plate 7, a positioning seat 6 installed at the center of the side plate 7, a sliding shaft 12 slidably connected to the side plate 7 through the positioning seat 6, a turntable 9 fixedly connected to one end of the sliding shaft 12, an arc groove 11 evenly spaced on the surface of the turntable 9, a rotating hole 14 opened on the side wall of the side plate 7, a rotating shaft 10 inserted into the side plate 7 through the rotating hole 14, a swing rod 13 rotatably connected to the outer wall of the rotating shaft 10, a limit post 8 fixedly connected to one end of the swing rod 13, the limit post 8 slidably connected to the inner wall of the arc groove 11, an annular rail 5 is provided at the center of the top surface of the base plate 2, a paint gun is movably connected to the inner wall of the annular rail 5, and the painting operation on the outer surface of the pipeline is performed by rotating the paint gun around the annular rail 5.

[0023] The specific setup and function of this embodiment are described below. To meet the external painting requirements of the pipeline, both ends of the pipeline are placed on the circular part of the turntable 9. The turntable 9 is driven to rotate by the servo motor 1, causing several arc-shaped grooves 11 on the surface of the turntable 9 to rotate. This causes the limiting posts 8 to slide along the trajectory of the arc-shaped grooves 11. Under the limiting action of the arc-shaped grooves 11, the limiting posts 8 swing inward, causing multiple limiting posts 8 to retract inward until the inner diameter of the multiple limiting posts 8 is the same as the outer diameter of the pipeline. At this point, the output shaft of the servo motor 1 stops, and the position of the limiting posts 8 is fixed by the electric locking shaft of the servo motor 1, thereby clamping the pipeline with the limiting posts 8. A circular track is set. Five paint spray guns are guided to spray paint around the outer perimeter of the pipe. The paint contains anti-corrosion materials, thus achieving anti-corrosion treatment of the pipe. Each paint spray gun has an independent storage chamber. When the paint is used up, the storage chamber can be removed, refilled, and then reinstalled in the paint spray gun to continue working. At the same time, the paint spray gun needs to be moved along the axis of the pipe to obtain a larger spraying area. The length of the limiting post 8 is set to be long enough, and the turntable 9 can be moved by the sliding shaft 12. Thus, the turntable 9 pushes one end of the pipe to one side, achieving the effect of pipe translation and increasing the area that can be sprayed in a single time.

[0024] Example 2: Figure 1 and Figure 4 As shown, sliding shafts 12 are provided at the four corners of the bottom of the base plate 2, and shims are provided at the bottom of the annular rail 5. A connecting frame 3 is fixedly connected to the bottom of the servo motor 1, and a guide post 15 is fixedly connected to one side of the connecting frame 3. A guide seat 16 is fixedly connected to the bottom of the base plate 2, and the guide post 15 is slidably connected inside the guide seat 16.

[0025] The outer wall of the limiting post 8 is provided with an anti-slip sleeve, and the surface of the anti-slip sleeve is textured. An angle bracket is provided between the base plate 2 and the side plate 7. The surface of the base plate 2 has threaded holes, and the angle bracket is installed in the threaded holes by screws. The inner wall of the annular rail 5 is coated with lubricant, and a counterweight is provided at the bottom end of the base post 4.

[0026] The overall effect of this embodiment is as follows: To ensure the stability of the servo motor 1 driving the turntable 9, a connecting frame 3 for support is provided at the bottom of the servo motor 1. One end of the connecting frame 3 is connected to the guide post 15. The cooperation between the guide post 15 and the guide seat 16 is synchronized with the cooperation between the sliding shaft 12 and the positioning seat 6, thereby ensuring that the servo motor 1 can be effectively supported during linear movement, improving the stability of clamping and positioning. A non-slip sleeve with fine texture is provided on the outer wall of the limiting post 8 to improve the stability of the limiting post 8 in fixing the pipe and prevent the pipe from falling off the limiting posts 8 on both sides. In order to adapt to the processing of pipes of different lengths, threaded holes are opened at different positions on the surface of the base plate 2. By adjusting the cooperation position between the corner piece and the threaded hole, the installation position of the side plate 7 and the base plate 2 is changed, thereby changing the distance between the two side plates 7 to adapt to the painting processing of different pipes.

[0027] The device's operation and working principle are as follows: During operation, the servo motor 1 drives the rotating shaft 10 on the side plate 7 to rotate, which in turn drives the swing rod 13 to make the limiting post 8 slide along the arc groove 11 on the surface of the turntable 9, thereby clamping the pipe placed at the circular position of the turntable 9. At the same time, the paint gun sprays paint around the outer surface of the pipe along the annular rail 5 at the center of the top surface of the base plate 2, and the paint contains anti-corrosion material to achieve anti-corrosion processing. In addition, the turntable 9 can move on the positioning seat 6 through the sliding shaft 12, pushing the pipe to move horizontally. Combined with the length setting of the limiting post 8, the spraying area is increased. The servo motor 1 drives the guide post 15 to slide in the guide seat 16 through the connecting frame 3 to ensure driving stability. The side plate 7 can be fitted with threaded holes at different positions of the base plate 2 through corner fittings to adjust the spacing to adapt to pipes of different lengths. The lubricant on the inner wall of the annular rail 5 ensures smooth movement of the paint gun, and the anti-slip sleeve on the outer side of the limiting post 8 prevents the pipe from detaching.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An external paint spraying apparatus for use in anticorrosion processing of pipes, comprising a base plate (2), characterized in that: Side plates (7) are installed on both sides of the top of the base plate (2). Servo motors (1) are installed on the outer side of each side plate (7). A positioning seat (6) is installed at the center of each side plate (7). A sliding shaft (12) is slidably connected to the side plate (7) through the positioning seat (6). A turntable (9) is fixedly connected to one end of the sliding shaft (12). Arc grooves (11) are evenly spaced on the surface of the turntable (9). A rotating hole (14) is opened on the side wall of the side plate (7). The side plate (7) is connected to the turntable (9) through the rotating shaft (12). A rotating shaft (10) is inserted into the rotating hole (14). A swing rod (13) is rotatably connected to the outer wall of the rotating shaft (10). One end of the swing rod (13) is fixedly connected to a limit post (8). The limit post (8) is slidably connected to the inner wall of the arc groove (11). A ring rail (5) is provided at the center of the top surface of the base plate (2). A paint gun is movably connected to the inner wall of the ring rail (5). The outer surface of the pipe is painted by circling the paint gun along the ring rail (5).

2. The external spray painting equipment for pipeline anti-corrosion processing according to claim 1, characterized in that: Sliding shafts (12) are provided at the four corners of the bottom of the base plate (2), and shims are provided at the bottom of the ring rail (5).

3. The external spray painting equipment for pipeline anti-corrosion processing according to claim 1, characterized in that: A connecting frame (3) is fixedly connected to the bottom end of the servo motor (1), and a guide column (15) is fixedly connected to one side of the connecting frame (3).

4. The external spray painting equipment for pipeline anti-corrosion processing according to claim 3, characterized in that: The bottom end of the base plate (2) is fixedly connected to a guide seat (16), and the guide column (15) is slidably connected inside the guide seat (16).

5. The external spray painting equipment for pipeline anti-corrosion processing according to claim 1, characterized in that: The outer wall of the limiting post (8) is provided with an anti-slip sleeve, and the surface of the anti-slip sleeve is provided with fine texture.

6. The external spray painting equipment for pipeline anti-corrosion processing according to claim 1, characterized in that: An angle bracket is provided between the base plate (2) and the side plate (7). The surface of the base plate (2) has a threaded hole, and the angle bracket is installed on the threaded hole by screws.

7. The external spray painting equipment for pipeline anti-corrosion processing according to claim 1, characterized in that: The inner wall of the circular rail (5) is coated with lubricant, and a counterweight is provided at the bottom end of the bottom column (4).