Pipeline inner wall coating device

Abstract

The utility model discloses a pipeline inner wall coating device, and particularly relates to the technical field of pipeline corrosion prevention. The coating device comprises a double-head motor; a cleaning mechanism is arranged at one end of the double-head motor, a coating mechanism is arranged at the other end of the double-head motor, a limiting mechanism is arranged on the circumferential surface of the double-head motor, the cleaning mechanism comprises a rotating disc, a connecting rod is rotationally mounted on the mounting seat, and a first spring is fixedly connected between a fixing plate and the connecting rod; a double-end motor is controlled to drive a rotating disc at the output end to rotate, meanwhile, a first spring pulls the connecting rod to enable the arc-shaped scraper to be attached to the inner wall of a pipeline, the rotating disc drives the arc-shaped scraper to rotate, and under the action of centrifugal force, the arc-shaped scraper is driven to be attached to the inner wall of the pipeline. An arc-shaped scraper scrapes impurities adhered to the inner wall of the pipeline, it is guaranteed that the device can coat the surface of the pipeline with anticorrosive paint, and the problem that an existing coating device cannot remove the impurities on the inner wall of the pipeline is solved.

Description

Technical Field

[0001] This utility model relates to the field of pipeline corrosion protection technology, specifically a pipeline inner wall coating device. Background Technology

[0002] Pipeline corrosion protection involves treating the surface of pipelines to prevent corrosion, oxidation, or other chemical substances from damaging the metal surface and reducing its service life. The most common method is spraying anti-corrosion coatings, which are applied evenly to the inside of the pipeline using a coating device to extend its service life.

[0003] Most existing pipe inner wall coating devices are based on a coating device storage tank. One end of the storage tank is equipped with an extraction pipe, and the other end of the extraction pipe is equipped with an extraction pump. The pump is connected to a rotating shaft, which is located inside the storage tank. The rotating shaft is equipped with a rotating motor, and coating nozzles are evenly arranged on the circumference of the rotating motor. By controlling the rotating motor, the coating nozzles are rotated to uniformly spray the inner wall of the pipe. Before spraying, a fan can be controlled to blow away dust from the inner wall of the pipe, thereby ensuring that the anti-corrosion coating can adhere to the inner wall of the pipe and improve the anti-corrosion effect of the pipe.

[0004] However, existing coating devices rely on rotating fans to blow away dust during use, which fails to remove impurities adhering to the inner wall of the pipe, thus preventing the anti-corrosion coating from functioning properly. Therefore, a pipe inner wall coating device is proposed. Utility Model Content

[0005] Technical problem: In the case of existing coating devices, dust is blown away by rotating a fan during use, but impurities adhering to the inner wall of the pipe cannot be removed, resulting in the anti-corrosion coating failing to play its anti-corrosion role. This utility model proposes a pipe inner wall coating device.

[0006] Technical solution: The present invention provides a pipe inner wall coating device, comprising a dual-head motor; a cleaning mechanism is provided at one end of the dual-head motor, a coating mechanism is provided at the other end of the dual-head motor, a limit mechanism is provided on the circumferential surface of the dual-head motor, and a turntable is fixed to the output shaft at one end of the dual-head motor;

[0007] The cleaning mechanism includes a turntable, with mounting seats evenly fixed at the side edge of the turntable. A connecting rod is rotatably mounted on the mounting seat. A fixing plate is evenly fixed on the circumference of the turntable. A first spring is fixedly connected between the fixing plate and the connecting rod. An arc-shaped scraper is rotatably mounted on one end of the connecting rod through a connecting seat. A fixing seat is fixed inside the arc-shaped scraper. A drive wheel is rotatably mounted inside the fixing seat. One end of the arc-shaped scraper is in contact with the inner wall of the pipe. The drive wheel is also in close contact with the inner wall of the pipe. A hollow shell is fixed to the output shaft of the other end of the dual-head motor. Through the structure of the arc-shaped scraper, impurities adhering to the inner wall of the pipe can be scraped off during rotation, improving the coating quality of the device. At the same time, with the cooperation of the inclined drive wheel, the device can be moved.

[0008] Preferably, the coating mechanism includes a hollow shell, a paint tank is fixed to one side of the hollow shell and the hollow shell is connected to the inside of the paint tank, atomizing nozzles are uniformly fixed on the circumferential surface of the hollow shell, straight rods are uniformly fixed on the circumferential surface of the hollow shell, a sleeve is slidably fitted on the straight rod, a second spring is fixedly connected between the sleeve and the straight rod, a mounting bracket is fixed to one end of the sleeve, a brush roller is rotatably mounted inside the mounting bracket, and a cylinder is symmetrically fixed on the circumferential surface of the dual-head motor. Through the cooperation of the atomizing nozzles and the brush rollers, the paint can be uniformly coated onto the inner wall of the pipe, preventing the paint from falling off, thereby extending the service life of the pipe.

[0009] Preferably, the limiting mechanism includes a cylinder, a telescopic plate is slidably installed on the inner side of the cylinder, a limiting roller is rotatably installed on the inner side of the telescopic plate, positioning holes are evenly opened on the side of the telescopic plate, and a positioning rod is inserted and installed on the side of the cylinder. The positioning rod is inserted and installed inside the positioning hole. Through the structure of the limiting roller, the dual-head motor can be limited to prevent the motor from rotating during operation, thereby ensuring the smooth movement of the device.

[0010] Beneficial effects: The significant features of this utility model compared with the prior art are:

[0011] 1. This utility model, through the structural design of a pipe inner wall coating device, sets up a cleaning mechanism to control a dual-head motor to drive the output end turntable to rotate. At the same time, a first spring pulls a connecting rod to make the arc-shaped scraper fit against the inner wall of the pipe. The turntable drives the arc-shaped scraper to rotate. Under the action of centrifugal force, the arc-shaped scraper scrapes away the impurities adhering to the inner wall of the pipe, thereby ensuring that the device can apply anti-corrosion coating to the surface of the pipe, solving the problem that existing coating devices cannot remove impurities from the inner wall of the pipe.

[0012] 2. This utility model, through the structural design of a pipe inner wall coating device, sets up a coating mechanism. A double-headed motor drives the hollow shell and paint tank to rotate, and a second spring pushes the sleeve to extend, causing the brush roller to contact the inner wall of the pipe. At this time, the atomizing nozzle sprays the paint atomized, and the brush roller evenly coats the paint onto the inner wall of the pipe, thereby preventing corrosion on the inner side of the pipe and extending its service life. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall frontal three-dimensional structure;

[0014] Figure 2 A schematic diagram of the main three-dimensional structure of the cleaning mechanism;

[0015] Figure 3 This is a side view of the three-dimensional structure of the coating mechanism;

[0016] Figure 4 This is a top-view sectional view of the three-dimensional structure of the limiting mechanism;

[0017] Figure 5 This is a schematic diagram of the overall rear-view three-dimensional structure.

[0018] In the diagram: 1. Dual-head motor; 2. Turntable; 3. Mounting base; 4. Connecting rod; 5. Fixing plate; 6. First spring; 7. Connecting seat; 8. Arc-shaped scraper; 9. Fixing base; 10. Drive wheel; 11. Hollow shell; 12. Paint tank; 13. Atomizing nozzle; 14. Straight rod; 15. Sleeve; 16. Second spring; 17. Mounting bracket; 18. Brush roller; 19. Cylinder; 20. Telescopic plate; 21. Limiting roller; 22. Positioning hole; 23. Positioning rod; 24. Limiting seat; 25. Screw. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0020] like Figure 1-4 As shown, this utility model provides a pipe inner wall coating device, including a double-headed motor 1; a cleaning mechanism is provided at one end of the double-headed motor 1, a coating mechanism is provided at the other end of the double-headed motor 1, a limit mechanism is provided on the circumferential surface of the double-headed motor 1, and a turntable 2 is fixed to the output shaft at one end of the double-headed motor 1.

[0021] like Figure 2As shown, the cleaning mechanism includes a turntable 2, with mounting bases 3 evenly fixed at the side edge of the turntable 2. A connecting rod 4 is rotatably mounted on the mounting base 3. Fixing plates 5 are evenly fixed on the circumference of the turntable 2. A first spring 6 is fixedly connected between the fixing plate 5 and the connecting rod 4. An arc-shaped scraper 8 is rotatably mounted on one end of the connecting rod 4 through a connecting seat 7. A fixing base 9 is fixed inside the arc-shaped scraper 8. A drive wheel 10 is rotatably mounted inside the fixing base 9. One end of the arc-shaped scraper 8 is in contact with the inner wall of the pipe. The drive wheel 10... The double-headed motor 1 is tightly fitted to the inner wall of the pipe, and a hollow shell 11 is fixed to the output shaft at the other end. During operation, when the existing coating device cannot remove the impurities adhering to the inner wall of the pipe, the structure of the cleaning mechanism controls the double-headed motor 1 to drive the output turntable 2 to rotate. At the same time, the first spring 6 pulls the connecting rod 4, causing the arc-shaped scraper 8 to adhere to the inner wall of the pipe. The turntable 2 drives the arc-shaped scraper 8 to rotate. Under the action of centrifugal force, the arc-shaped scraper 8 scrapes away the impurities adhering to the inner wall of the pipe, thereby ensuring that the device can apply the anti-corrosion coating to the surface of the pipe.

[0022] Furthermore, such as Figure 3 As shown, the coating mechanism includes a hollow shell 11. A paint tank 12 is fixed to one side of the hollow shell 11, and the hollow shell 11 communicates with the inner side of the paint tank 12. Atomizing nozzles 13 are uniformly fixed on the circumferential surface of the hollow shell 11. Straight rods 14 are uniformly fixed on the circumferential surface of the hollow shell 11. A sleeve 15 is slidably fitted onto the straight rod 14. A second spring 16 is fixedly connected between the sleeve 15 and the straight rod 14. A mounting bracket 17 is fixed to one end of the sleeve 15. The inner side of the mounting bracket 17 is rotatably mounted. Equipped with a brush roller 18, a cylinder 19 is symmetrically fixed on the circumferential surface of the dual-head motor 1. During operation, when encountering the problem of uneven coating of paint on the inner side of the pipe, the structure of the coating mechanism enables the dual-head motor 1 to drive the hollow shell 11 and the paint tank 12 to rotate. The second spring 16 pushes the sleeve 15 to extend, causing the brush roller 18 to contact the inner wall of the pipe. At this time, the atomizing nozzle 13 atomizes and sprays the paint, while the brush roller 18 evenly coats the paint onto the inner wall of the pipe, thereby preventing corrosion on the inner side of the pipe and extending its service life.

[0023] Furthermore, such as Figure 4As shown, the limiting mechanism includes a cylinder 19, a telescopic plate 20 slidably mounted on the inner side of the cylinder 19, a limiting roller 21 rotatably mounted on the inner side of the telescopic plate 20, positioning holes 22 evenly opened on the side of the telescopic plate 20, and a positioning rod 23 inserted through the side of the cylinder 19, the positioning rod 23 being inserted through the positioning hole 22. During operation, when the device position deviates, causing it to be unable to move inside the pipe, the limiting mechanism pulls the positioning rod 23 out, extending the telescopic plate 20 to the required length. Then, the positioning rod 23 is re-inserted into the telescopic plate 20 and the inner side of the cylinder 19, fixing the position of the limiting roller 21. At this time, the limiting roller 21 is in contact with the inner wall of the pipe and can limit the movement of the dual-head motor 1, preventing the machine body from rotating during operation, thereby ensuring that the drive wheel 10 can stably push the device to move.

[0024] Furthermore, such as Figure 5 As shown, a limiting seat 24 is fixed inside the connecting seat 7, and a screw 25 is rotatably inserted inside the limiting seat 24. One end of the screw 25 presses against the surface of the connecting rod 4. During operation, when the drive wheel 10 slips on the contact surface with the pipe, causing it to be unable to drive the device to move, the screw 25 can be rotated to extend and retract to the required length, thereby pressing against the surface of the connecting rod 4 and limiting the angle between the arc-shaped scraper 8 and the connecting rod 4 within a suitable range, thus preventing the drive wheel 10 from slipping and ensuring that it can drive the device to move smoothly inside the pipe.

[0025] Working Principle: Pipeline corrosion protection involves treating the surface of pipelines to prevent corrosion, oxidation, or other chemical erosion that could shorten their service life. The most common method is spraying anti-corrosion coatings. A coating device evenly applies the coating to the inside of the pipeline, extending its lifespan. However, existing coating devices rely on a fan to blow away dust, which fails to remove impurities adhering to the inner wall of the pipeline, rendering the anti-corrosion coating ineffective. To address this, a cleaning and coating mechanism is incorporated. Pulling the positioning rod 23 extends the telescopic plate 20 to the desired length. Then, the positioning rod 23 is reinserted into the telescopic plate 20 and the inner wall of the cylinder 19, fixing the position of the limiting roller 21. When the device is placed inside the pipeline, the limiting roller 21 adheres to the inner wall of the pipeline. The device can limit the movement of the dual-head motor 1 to prevent the machine body from rotating during operation. Then, it controls the dual-head motor 1 to drive the output turntable 2 to rotate. At the same time, the first spring 6 pulls the connecting rod 4, causing the arc-shaped scraper 8 to adhere to the inner wall of the pipe. The turntable 2 drives the arc-shaped scraper 8 to rotate. Under the action of centrifugal force, the arc-shaped scraper 8 scrapes away the impurities adhering to the inner wall of the pipe. During the rotation, with the cooperation of the inclined drive wheel 10, the device can move smoothly inside the pipe. At the same time, the dual-head motor 1 drives the hollow shell 11 and the paint tank 12 to rotate. The second spring 16 pushes the sleeve 15 to extend, causing the brush roller 18 to contact the inner wall of the pipe. At this time, the atomizing nozzle 13 sprays the paint atomized, and the brush roller 18 evenly coats the paint onto the inner wall of the pipe, thereby preventing the inner wall of the pipe from rusting and extending its service life. This solves the problem that existing coating devices cannot remove impurities from the inner wall of pipes.

Claims

1. A pipe internal wall coating apparatus characterized by: Including double -end motor (1), one end of double -end motor (1) is provided with cleaning mechanism, the other end of double -end motor (1) is provided with coating mechanism, the circumferential surface of double -end motor (1) is provided with limiting mechanism, the output shaft of one end of double -end motor (1) is fixed with rotary table (2); The cleaning mechanism includes rotary table (2), the side edge of rotary table (2) is uniformly provided with mounting seat (3), the mounting seat (3) is rotatably installed with connecting rod (4), the circumferential surface of rotary table (2) is uniformly provided with fixed plate (5), the first spring (6) is fixedly connected between fixed plate (5) and connecting rod (4), the connecting rod (4) is rotatably installed with arc-shaped scraper (8) through connecting seat (7) cooperation, the inner side of arc-shaped scraper (8) is fixed with fixed seat (9), the inner side of fixed seat (9) is rotatably installed with driving wheel (10).

2. A pipeline internal wall coating apparatus according to claim 1, characterised in that: One end of arc-shaped scraper (8) is attached to the inner wall of the pipeline, the driving wheel (10) is closely attached to the inner wall of the pipeline, the other end of the output shaft of the double-end motor (1) is fixed with the hollow shell (11).

3. A pipeline internal wall coating apparatus according to claim 2, characterised in that: The coating mechanism includes hollow shell (11), the hollow shell (11) is fixed with paint tank (12) on one side, and the hollow shell (11) is in communication with the inner side of the paint tank (12), the circumferential surface of the hollow shell (11) is uniformly provided with atomizing nozzle (13), the circumferential surface of the hollow shell (11) is uniformly provided with straight rod (14).

4. A pipeline internal wall coating apparatus as claimed in claim 3, wherein: The sleeve (15) is slidably sleeved on the straight rod (14), the second spring (16) is fixedly connected between the sleeve (15) and the straight rod (14), the mounting bracket (17) is fixed on one end of the sleeve (15), the brush roller (18) is rotatably installed in the inner side of the mounting bracket (17), the cylinder (19) is symmetrically fixed on the circumferential surface of the double-end motor (1).

5. A pipeline internal wall coating apparatus as claimed in claim 4, wherein: The limiting mechanism includes cylinder (19), the telescopic plate (20) is slidably installed in the inner side of the cylinder (19), the limiting roller (21) is rotatably installed in the inner side of the telescopic plate (20).

6. A pipeline internal wall coating apparatus as claimed in claim 5 wherein: The positioning hole (22) is uniformly formed in the side surface of the telescopic plate (20), the positioning rod (23) is insertedly installed in the side surface of the cylinder (19), and the positioning rod (23) is insertedly installed in the inner side of the positioning hole (22).

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