Metal pipeline outer wall anticorrosive paint brushing device
By designing a paint application device that combines bidirectional screw fixing rod clamping with spray brush bristles, the problems of low painting efficiency and poor adaptability of existing equipment are solved. It achieves stable clamping of pipes of different sizes and uniform paint application, thereby improving paint spraying efficiency.
Patent Information
- Application Number
- CN202520411837.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-11
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-11
AI Technical Summary
Existing metal pipe anti-corrosion coating equipment is inefficient and difficult to adapt to pipes of different sizes, resulting in inconvenience in coating.
A device for applying anti-corrosion coating to the outer wall of metal pipes was designed. The pipe is clamped by a bidirectional screw fixing rod, and the coating is uniformly sprayed and brushed by a combination of spraying ring and brush bristles. The operation efficiency is improved by using a motor drive.
It achieves stable clamping of pipes of different sizes and uniform coating of paint, improves paint spraying efficiency, and adapts to the fixing of pipes of different sizes and uniform paint coverage.
Smart Images

Figure CN223931702U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of metal pipe corrosion protection technology, and in particular to a device for applying anti-corrosion coating to the outer wall of metal pipes. Background Technology
[0002] Corrosion prevention involves using various methods to protect easily corroded metal objects, thereby extending their service life. Common methods include chemical corrosion prevention, physical corrosion prevention, and electrochemical corrosion prevention. Anti-corrosion coatings are generally divided into conventional anti-corrosion coatings and heavy-duty anti-corrosion coatings, and are an essential type of paint. Conventional anti-corrosion coatings provide corrosion protection for metals under normal conditions, extending the service life of non-ferrous metals.
[0003] Corrosion protection for metal pipes usually involves spraying paint onto the pipe surface. However, current equipment is inefficient in this process, and it is inconvenient to apply paint to pipes of different sizes. Utility Model Content
[0004] The purpose of this invention is to address the aforementioned problems and shortcomings by proposing a metal pipe external anti-corrosion coating application device: after the bidirectional screw rotates, it drives the fixing rods to move closer to each other, and the fixing rods fix and clamp the metal pipe through the fixing groove, which facilitates the fixing of the pipe and the fixing of pipes of different sizes.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A metal pipe external anti-corrosion coating brushing device includes a base. A movable groove is formed at the center of the top outer wall of the base, and a bidirectional screw is rotatably connected in the movable groove. Fixed rods are threaded to the outer walls of both ends of the bidirectional screw, and fixed grooves are formed at the top of the outer walls of the fixed rods that are close to each other. Spraying structures are provided on the outer walls of both sides of the base. The spraying structure includes an adjustment groove formed on the outer walls of both sides of the base, an adjustment screw rotatably connected in the adjustment groove, a support rod threaded to the outer wall of the adjustment screw, and a spraying ring installed on the outer wall of the top of the support rod.
[0007] Preferably, a spraying groove is provided at the center of the inner outer wall of the spraying ring, and an annular pipe is installed in the spraying groove. Spray nozzles are provided at equal intervals on the inner outer wall of the annular pipe, and one end of the annular pipe is connected to a conveying pipe.
[0008] Preferably, the outer walls at both ends of the spraying ring are provided with two brush grooves, and an adjusting ring is slidably connected in each brush groove. The inner outer walls of the adjusting ring are provided with bristles that are evenly distributed.
[0009] Preferably, a collection box is connected to the bottom center of the spraying ring, and a discharge pipe is provided at the bottom of the collection box, with a valve installed in the discharge pipe.
[0010] Preferably, a fixed motor and an adjusting motor are respectively installed on the outer wall of the base at one end of the bidirectional screw and one end of the adjusting screw, and the output shafts of the fixed motor and the adjusting motor are respectively connected to one end of the bidirectional screw and the adjusting screw.
[0011] Preferably, the outer wall of the top of the base is provided with stabilizing grooves at both ends of the moving groove, and a stabilizing plate is installed on the outer wall of the fixing rod at the stabilizing groove. The stabilizing plate is slidably connected in the stabilizing groove, and the fixing rod is slidably connected to the inner wall of the moving groove.
[0012] The beneficial effects of this utility model are as follows:
[0013] After the bidirectional screw rotates, it drives the fixing rods to move closer to each other. The fixing rods clamp the metal pipe through the fixing groove, which makes it easy to fix the pipe and to fix pipes of different sizes.
[0014] The delivery pipe conveys the paint into the annular pipe. The paint is sprayed from the nozzle onto the outer wall of the pipe, and then the brush evenly spreads the paint onto the outer wall of the pipe, which facilitates spraying and improves spraying efficiency. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the unfolded part of the spraying ring of a metal pipe external anti-corrosion coating brushing device proposed in this utility model;
[0016] Figure 2 This is a schematic diagram of the base structure of a metal pipe external anti-corrosion coating brushing device proposed in this utility model;
[0017] Figure 3 This is a schematic diagram of the overall structure of a metal pipe external anti-corrosion coating brushing device proposed in this utility model.
[0018] In the diagram: 1. Base, 2. Moving slot, 3. Stabilizing slot, 4. Bidirectional screw, 5. Fixed motor, 6. Fixed rod, 7. Stabilizing plate, 8. Fixed slot, 9. Spraying structure, 10. Support rod, 11. Spraying ring, 12. Spraying slot, 13. Annular pipe, 14. Nozzle, 15. Brushing slot, 16. Adjusting ring, 17. Brush bristles, 18. Conveying pipe, 19. Collection box, 20. Valve, 21. Adjusting slot, 22. Adjusting screw, 23. Adjusting motor. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Example
[0020] Reference Figure 1-3A metal pipe outer wall anti-corrosion coating brushing device includes a base 1, a movable groove 2 is provided at the center of the top outer wall of the base 1, and a bidirectional screw 4 is rotatably connected in the movable groove 2. The outer walls of both ends of the bidirectional screw 4 are threaded with fixing rods 6, and fixing grooves 8 are provided at the top of the outer wall of the fixing rods 6 that are close to each other. Spraying structures 9 are provided on the outer walls of both sides of the base 1.
[0021] The spraying structure 9 includes adjustment grooves 21 on both outer walls of the base 1, adjustment screws 22 rotatably connected in the adjustment grooves 21, support rods 10 threadedly connected to the outer wall of the adjustment screws 22, and spraying rings 11 installed on the outer wall of the top of the support rods 10.
[0022] A spraying groove 12 is provided at the center of the inner outer wall of the spraying ring 11, and an annular tube 13 is installed in the spraying groove 12. Spray nozzles 14 are provided at equal intervals on the inner outer wall of the annular tube 13. One end of the annular tube 13 is connected to a conveying pipe 18. Rotating an adjusting ring 16 at both ends of the spraying ring 11 causes the bristles 17 on the adjusting ring 16 to wrap around the metal tube. After starting the adjusting motor 23, the support frame 10 and the spraying ring 11 move along the outer wall of the pipe.
[0023] Two brush grooves 15 are provided on the outer walls of both ends of the spraying ring 11, and an adjusting ring 16 is slidably connected in each brush groove 15. The inner outer wall of the adjusting ring 16 is provided with bristles 17 distributed at equal intervals. The conveying pipe 18 conveys paint to the annular pipe 13. The paint is sprayed from the nozzle 14 onto the outer wall of the pipe. Then the bristles 17 brush the paint evenly onto the outer wall of the pipe, which facilitates spraying and improves spraying efficiency.
[0024] A collection box 19 is connected to the bottom center of the spraying ring 11, and a discharge pipe is provided at the bottom of the collection box 19. A valve 20 is installed in the discharge pipe. Some paint falls into the collection box 19 from the spraying tank 12 to be collected, so as to avoid the paint covering the spraying ring 11 and facilitate its use. After the valve 20 is opened, the collected paint can be discharged.
[0025] A fixed motor 5 and an adjusting motor 23 are respectively installed on one end of the bidirectional screw 4 and one end of the adjusting screw 22 on the outer wall of the base 1, and the output shafts of the fixed motor 5 and the adjusting motor 23 are respectively connected to one end of the bidirectional screw 4 and the adjusting screw 22.
[0026] The outer wall of the base 1 has a stabilizing groove 3 at both ends of the moving groove 2, and a stabilizing plate 7 is installed on the outer wall of the fixing rod 6 at the stabilizing groove 3. The stabilizing plate 7 is slidably connected in the stabilizing groove 3, and the fixing rod 6 is slidably connected to the inner wall of the moving groove 2. After the bidirectional screw 4 rotates, it drives the fixing rod 6 to move closer to each other. The fixing rod 6 fixes and clamps the metal pipe through the fixing groove 8, which is convenient for fixing the pipe and for fixing pipes of different sizes.
[0027] Working principle: In use, the metal pipe is placed between the fixing grooves 8 of the fixing rod 6. The fixing motor 5 is started to drive the bidirectional screw 4 to rotate. After the bidirectional screw 4 rotates, it drives the fixing rods 6 to move closer to each other. The fixing rods 6 fix and clamp the metal pipe through the fixing grooves 8, which is convenient for fixing pipes of different sizes. At this time, the spraying ring 11 is located on the outer wall of the pipe. Rotate the adjusting ring 16 at both ends of the spraying ring 11 so that the bristles 17 on the adjusting ring 16 wrap around the metal pipe. After starting the adjusting motor 23, it drives the support frame 10 and the spraying ring 11 to move along the outer wall of the pipe. The conveying pipe 18 conveys the paint to the annular pipe 13. The paint is sprayed from the nozzle 14 onto the outer wall of the pipe. Then the bristles 17 brush the paint evenly on the outer wall of the pipe, which is convenient for spraying and improves the spraying efficiency. Some paint falls into the collection box 19 in the spraying groove 12 and is collected to avoid the paint covering the spraying ring 11 and facilitate use. After the valve 20 is opened, the collected paint can be discharged.
[0028] The exemplary embodiments of the present invention have been described in detail herein with reference to examples. However, those skilled in the art will understand that various modifications and alterations can be made to the specific embodiments described above without departing from the spirit of the present invention, and various combinations can be made to the various technical features and structures proposed in the present invention without exceeding the protection scope of the present invention, which is determined by the appended claims. The foregoing description of specific exemplary embodiments of the present invention is not intended to limit the present invention to the precise forms disclosed, and it is obvious that many changes and variations can be made based on the above teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical applications, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the present invention, as well as various different choices and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.
Claims
1. A device for applying anti-corrosion coating to the outer wall of a metal pipe, comprising a base (1), characterized in that, The base (1) has a movable groove (2) at the center of the top outer wall, and a bidirectional screw (4) is rotatably connected in the movable groove (2). The outer walls of both ends of the bidirectional screw (4) are threaded with fixing rods (6), and the fixing rods (6) are provided with fixing grooves (8) at the top of the outer wall of one side close to each other. The outer walls of both sides of the base (1) are provided with a spraying structure (9). The spraying structure (9) includes an adjustment groove (21) on both sides of the outer wall of the base (1), an adjustment screw (22) rotatably connected in the adjustment groove (21), a support rod (10) threadedly connected to the outer wall of the adjustment screw (22), and a spraying ring (11) installed on the outer wall of the top of the support rod (10).
2. The device for applying anti-corrosion coating to the outer wall of a metal pipe according to claim 1, characterized in that, A spraying groove (12) is provided at the center of the inner outer wall of the spraying ring (11), and an annular pipe (13) is installed in the spraying groove (12). The inner outer wall of the annular pipe (13) is provided with nozzles (14) distributed at equal intervals, and one end of the annular pipe (13) is connected to a conveying pipe (18).
3. The device for applying anti-corrosion coating to the outer wall of a metal pipe according to claim 1, characterized in that, The outer walls of both ends of the spraying ring (11) are provided with two brushing grooves (15), and an adjusting ring (16) is slidably connected in each brushing groove (15). The inner outer wall of the adjusting ring (16) is provided with bristles (17) distributed at equal intervals.
4. The device for applying anti-corrosion coating to the outer wall of a metal pipe according to claim 1, characterized in that, The bottom center of the spray ring (11) is connected to a collection box (19), and the bottom of the collection box (19) is provided with a discharge pipe, and a valve (20) is installed in the discharge pipe.
5. The device for applying anti-corrosion coating to the outer wall of a metal pipe according to claim 1, characterized in that, The outer wall of the base (1) is equipped with a fixed motor (5) and an adjusting motor (23) at one end of the bidirectional screw (4) and one end of the adjusting screw (22), respectively, and the output shafts of the fixed motor (5) and the adjusting motor (23) are respectively connected to one end of the bidirectional screw (4) and the adjusting screw (22).
6. The device for applying anti-corrosion coating to the outer wall of a metal pipe according to claim 1, characterized in that, The outer wall of the base (1) is provided with a stabilizing groove (3) at both ends of the moving groove (2), and a stabilizing plate (7) is installed on the outer wall of the fixing rod (6) at the stabilizing groove (3). The stabilizing plate (7) is slidably connected in the stabilizing groove (3), and the fixing rod (6) is slidably connected to the inner wall of the moving groove (2).