Petroleum pipeline anticorrosive coating repairing device

Abstract

The utility model relates to the technical field of petroleum pipeline repairing, and discloses a petroleum pipeline anticorrosive coating repairing device which comprises a fixing ring, a spraying assembly is arranged in the fixing ring and comprises a movable gear ring arranged in the fixing ring in a sliding mode, and a connecting ring is fixed to the outer wall of the movable gear ring. Sprayers are fixedly inserted into the outer wall of the connecting ring, a storage box is arranged on the front side of the fixing ring, and a connecting rod is fixed to the bottom face of the fixing ring. The movable gear ring is connected to the outer wall of the petroleum pipeline needing to be repaired in a sleeving mode, the movable gear ring is driven to rotate in the fixed ring, the spray head can automatically rotate around the outer wall of the petroleum pipeline, and then the spray head sprays anti-corrosion paint to the position, needing to be repaired, of the petroleum pipeline; therefore, a worker does not need to manually adjust the spraying angle and position of the spraying head to continue spraying, the worker does not need to climb to a high position or bend down to conduct spraying operation, repairing work is more convenient, and meanwhile the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of oil pipeline repair technology, and in particular to an oil pipeline anti-corrosion coating repair device. Background Technology

[0002] During long-term use, the anti-corrosion coating on the outer surface of oil pipelines may be damaged by mechanical damage, chemical corrosion, or environmental influences, leaving the pipeline exposed and further increasing the risk of corrosion and safety hazards. Existing repair methods are generally inefficient and complex, failing to meet the requirements for rapid on-site repair. Therefore, there is an urgent need for a portable and efficient anti-corrosion coating repair device.

[0003] An existing in-service steel pressure pipeline coating repair device (publication number: CN221934258U) has at least the following drawbacks: the device requires workers to manually hold the handle and spray the oil pipeline to be repaired. This means that when spraying the top surface of an oil pipeline at a high position, workers need to climb to a high position to spray, and when spraying the bottom surface of a low-lying pipeline, workers need to bend over to spray. This makes the spraying work inconvenient and affects work efficiency. Therefore, this utility model is proposed. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a repair device for anti-corrosion coatings on oil pipelines.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A device for repairing anti-corrosion coatings on oil pipelines includes a fixed ring, a spraying assembly inside the fixed ring, a movable toothed ring slidably disposed inside the fixed ring, a connecting ring fixed to the outer wall of the movable toothed ring, a nozzle fixedly inserted into the outer wall of the connecting ring, a storage box on the front side of the fixed ring, a connecting rod fixed to the bottom surface of the fixed ring, a rotating frame fixed to the front side of the outer wall of the connecting rod, a take-up drum rotatably connected inside the rotating frame, and a connecting pipe fixedly connected between the outer wall of the take-up drum and the nozzle.

[0007] As a further embodiment of this utility model, a first motor is fixed on both the left and right sides of the fixed ring, and a drive gear is fixed on the output shaft end of the first motor. The teeth of the drive gear penetrate the fixed ring and mesh with the movable gear ring. A feeding pump is fixed on the top surface of the storage box, and the feeding pipe of the feeding pump extends through and into the interior of the storage box. The feeding pipe of the feeding pump is rotatably connected to the right end of the winding drum through an oil seal. A second motor is fixed on the left side of the rotating frame, and the output shaft end of the second motor is fixed to the left end of the winding drum.

[0008] As a further embodiment of this utility model, a limiting frame is fixed on the top surface of the rotating frame, and two limiting rollers are rotatably connected inside the limiting frame, with a connecting pipe located between the two limiting rollers.

[0009] As a further embodiment of this utility model, a telescopic cylinder is movably sleeved on the outer wall of the connecting rod, and a locking bolt is threadedly connected to the outer wall of the telescopic cylinder, with one end of the locking bolt abutting against the outer wall of the connecting rod.

[0010] As a further embodiment of this utility model, an observation strip is fixed to the front side of the storage box, and the observation strip is made of tempered glass.

[0011] As a further embodiment of this utility model, elastic bands are fixed to the rear side of the storage box near the left and right sides.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] By fitting the movable toothed ring onto the outer wall of the oil pipeline to be repaired, and then driving the movable toothed ring to rotate inside the fixed ring, the nozzle can automatically rotate around the outer wall of the oil pipeline. The nozzle then sprays the anti-corrosion coating onto the area of ​​the oil pipeline to be repaired. Therefore, whether spraying the top surface of an oil pipeline located at a high position or the bottom surface of an oil pipeline located at a low position, the operator does not need to manually adjust the spray angle and position of the nozzle to continue spraying. This eliminates the need for operators to climb to high places or bend over to carry out spraying work, making the repair work more convenient and increasing work efficiency. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of an oil pipeline anti-corrosion coating repair device proposed in this utility model;

[0015] Figure 2 This is a three-dimensional disassembled structural diagram of an oil pipeline anti-corrosion coating repair device proposed in this utility model;

[0016] Figure 3 for Figure 2 A magnified schematic diagram of the partial three-dimensional structure of A in the diagram;

[0017] Figure 4 for Figure 2 A magnified schematic diagram of the partial three-dimensional structure of B in the diagram.

[0018] In the diagram: 1. Fixed ring; 2. Movable toothed ring; 201. Connecting ring; 202. Nozzle; 203. Storage box; 204. Connecting rod; 205. Rotating frame; 206. Rewinding drum; 207. Connecting pipe; 208. First motor; 209. Drive gear; 210. Feed pump; 211. Second motor; 3. Limiting frame; 301. Limiting roller; 4. Telescopic cylinder; 401. Locking bolt; 5. Observation strip; 6. Elastic band. Detailed Implementation

[0019] 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.

[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] like Figures 1-4 As shown, an anti-corrosion coating repair device for oil pipelines includes a fixed ring 1. A spraying assembly is provided inside the fixed ring 1. The spraying assembly includes a movable toothed ring 2 that is slidably disposed inside the fixed ring 1. A connecting ring 201 is fixed to the outer wall of the movable toothed ring 2. A nozzle 202 is fixedly inserted into the outer wall of the connecting ring 201. A storage box 203 is provided on the front side of the fixed ring 1. A connecting rod 204 is fixed to the bottom surface of the fixed ring 1. A rotating frame 205 is fixed to the front side of the outer wall of the connecting rod 204. A take-up drum 206 is rotatably connected inside the rotating frame 205. A connecting pipe 207 is fixedly connected between the outer wall of the take-up drum 206 and the nozzle 202.

[0023] like Figures 2-4As shown, in this embodiment, a first motor 208 is fixed on both the left and right sides of the fixed ring 1. A drive gear 209 is fixed to the output shaft end of the first motor 208. The teeth of the drive gear 209 penetrate the fixed ring 1 and mesh with the movable gear ring 2. A feed pump 210 is fixed to the top surface of the storage box 203. The feed pipe of the feed pump 210 extends through into the interior of the storage box 203. The feed pipe of the feed pump 210 is rotatably connected to the right end of the take-up drum 206 through an oil seal. A second motor 211 is fixed to the left side of the rotating frame 205. The output shaft end of the second motor 211 is fixed to the left end of the take-up drum 206. By starting the first motor 208, the drive gear 209 is driven to rotate. When the drive gear 209 meshes with the movable gear ring 2, the movable gear ring 2 is driven to rotate, thereby causing the movable gear ring 2 to drive the connecting ring 201 and the nozzle 202 to rotate around the outer wall of the oil pipe. This allows the nozzle 202 to be adjusted to the position on the oil pipe that needs repair. During this process, the second motor 211 is started to drive the take-up drum 206 to rotate, thereby taking up and unwinding the connecting pipe 207 according to the position of the nozzle 202. Then, the feed pump 210 is started to draw the anti-corrosion coating from the storage tank 203 and input it into the take-up drum 206. Subsequently, the coating is input into the connecting pipe 207 through the take-up drum 206 and sprayed onto the position on the oil pipe that needs repair through the nozzle 202, thus completing the repair work.

[0024] like Figures 2-4 As shown in this embodiment, the top surface of the rotating frame 205 is fixed with a limiting frame 3. The limiting frame 3 has two limiting rollers 301 rotatably connected inside. The connecting pipe 207 is located between the two limiting rollers 301. By setting the limiting rollers 301, the connecting pipe 207 can be limited.

[0025] like Figures 2-4 As shown, in this embodiment, a telescopic cylinder 4 is movably sleeved on the outer wall of the connecting rod 204. A locking bolt 401 is threadedly connected to the outer wall of the telescopic cylinder 4. One end of the locking bolt 401 abuts against the outer wall of the connecting rod 204. By adjusting the position of the telescopic cylinder 4 on the outer wall of the connecting rod 204, the overall length of the connecting rod 204 and the telescopic cylinder 4 can be adjusted.

[0026] like Figures 2-4 As shown in this embodiment, an observation strip 5 is fixed to the front side of the storage box 203. The observation strip 5 is made of tempered glass. By setting the observation strip 5, it is convenient for staff to determine the remaining amount of anti-corrosion coating inside the storage box 203.

[0027] like Figures 2-4 As shown in this embodiment, elastic bands 6 are fixed to the rear side of the storage box 203 near the left and right sides. By setting the elastic bands 6, it is convenient for workers to carry the storage box 203 on their backs.

[0028] From the above description, it can be seen that the above embodiments of this utility model achieve the following technical effects: In use, by using the elastic band 6 to facilitate the worker to carry the storage box 203, and then adjusting the position of the telescopic cylinder 4 on the outer wall of the connecting rod 204, the overall length of the connecting rod 204 and the telescopic cylinder 4 is adjusted. Then, the fixing ring 1 is sleeved on the outer wall of the oil pipeline to be repaired. Then, the first motor 208 is started to drive the drive gear 209 to rotate. Under the meshing action of the drive gear 209 and the movable gear ring 2, the movable gear ring 2 is driven to rotate, thereby causing the movable gear ring 2 to drive the connecting ring 201 and the nozzle. The nozzle 202 rotates around the outer wall of the oil pipe, thereby adjusting the nozzle 202 to the position on the oil pipe that needs repair. During this process, the second motor 211 is started to drive the take-up drum 206 to rotate, thereby taking up and releasing the connecting pipe 207 according to the position of the nozzle 202. The connecting pipe 207 slides between the limiting rollers 301 and also slides along the outer wall of the connecting ring 201. Then, the feed pump 210 is started to draw the anti-corrosion coating inside the storage tank 203 and input it into the inside of the take-up drum 206. Then, it is input into the connecting pipe 207 through the take-up drum 206 and sprayed onto the position on the oil pipe that needs repair through the nozzle 202, thus completing the repair work.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A device for repairing anti-corrosion coatings on oil pipelines, comprising a fixing ring (1), characterized in that, The fixed ring (1) is equipped with a spraying assembly, which includes a movable toothed ring (2) that is slidably disposed inside the fixed ring (1). A connecting ring (201) is fixed to the outer wall of the movable toothed ring (2). A nozzle (202) is fixedly inserted into the outer wall of the connecting ring (201). A storage box (203) is provided on the front side of the fixed ring (1). A connecting rod (204) is fixed to the bottom surface of the fixed ring (1). A rotating frame (205) is fixed to the front side of the outer wall of the connecting rod (204). A take-up drum (206) is rotatably connected inside the rotating frame (205). A connecting pipe (207) is fixedly connected between the outer wall of the take-up drum (206) and the nozzle (202).

2. The oil pipeline anti-corrosion coating repair device according to claim 1, characterized in that, The first motor (208) is fixed on both the left and right sides of the fixed ring (1). The output shaft of the first motor (208) is fixed with a drive gear (209). The teeth of the drive gear (209) penetrate the fixed ring (1) and mesh with the movable gear ring (2). The top surface of the storage box (203) is fixed with a feed pump (210). The feed pipe of the feed pump (210) extends through to the inside of the storage box (203). The feed pipe of the feed pump (210) is rotatably connected to the right end of the take-up drum (206) through an oil seal. The left side of the rotating frame (205) is fixed with a second motor (211). The output shaft of the second motor (211) is fixed to the left end of the take-up drum (206).

3. The oil pipeline anti-corrosion coating repair device according to claim 2, characterized in that, The top surface of the rotating frame (205) is fixed with a limiting frame (3), and the inside of the limiting frame (3) is rotatably connected with two limiting rollers (301), and the connecting pipe (207) is located between the two limiting rollers (301).

4. The oil pipeline anti-corrosion coating repair device according to claim 3, characterized in that, The outer wall of the connecting rod (204) is movably fitted with a telescopic cylinder (4), and the outer wall of the telescopic cylinder (4) is threaded with a locking bolt (401), one end of which abuts against the outer wall of the connecting rod (204).

5. The oil pipeline anti-corrosion coating repair device according to claim 4, characterized in that, An observation strip (5) is fixed to the front side of the storage box (203), and the observation strip (5) is made of tempered glass.

6. The oil pipeline anti-corrosion coating repair device according to claim 5, characterized in that, Elastic bands (6) are fixed to the rear side of the storage box (203) near the left and right sides.

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