A spraying tool for coating the inside of oil pipes

Abstract

This utility model relates to the field of pipeline spraying and discloses a spraying tool for the inner coating of oil pipes. The tool includes a placement frame fixed to the top surface of a base. A powder box is movably mounted above the base, and a delivery pipe is fixedly connected to the front of the powder box. A booster pump is mounted on the delivery pipe, and several electrostatic spray guns are mounted on the outer wall of the delivery pipe. Two baffles are detachably mounted on the outer wall of the delivery pipe, each baffle consisting of several fan-shaped baffles arranged symmetrically. In this utility model, the combined use of the powder box, delivery pipe, booster pump, and electrostatic spray guns facilitates the spraying of the interior of the oil pipe. Furthermore, the use of the fan-shaped baffles effectively prevents the diffusion of excess powder, reducing powder overflow during spraying. This not only improves spraying efficiency but also reduces powder waste and environmental pollution.

Description

Technical Field

[0001] This utility model relates to the technical field of pipeline spraying, specifically to a spraying tool for the inner coating of oil pipes. Background Technology

[0002] Oil pipes are widely used in the manufacture of structural components and mechanical parts, such as oil drill pipes, automobile drive shafts, bicycle frames, and steel scaffolding used in construction. Using oil cracking pipes to manufacture ring-shaped parts can improve material utilization, simplify manufacturing processes, and save materials and processing time; for example, rolling bearing rings and jack sleeves are now widely manufactured using steel pipes. During the production and processing of oil pipelines, the inside of the pipes is coated with anti-corrosion paint for corrosion protection.

[0003] According to Chinese Patent No. CN221016844U, a spraying tool for an inner coating of oil pipes belongs to the technical field of pipeline spraying equipment. This spraying tool for an inner coating of oil pipes includes a base component and a spraying component. The base component includes a support part and a rotating part, with the rotating part mounted on the support part. The spraying component includes a moving part and a powder spraying part, both mounted on the support part, and the powder spraying part also mounted on the moving part. The support part includes a worktable, a base, an electric guide rail, and an electric slide. The base is mounted below the worktable, and the electric guide rail is mounted above the worktable.

[0004] In the above scheme, the inside of the oil pipe is sprayed through a feeding pipe and an electrostatic spray gun. This has the following disadvantages: when the electrostatic spray gun is spraying, excess powder may diffuse, resulting in powder overflow during the spraying process, which increases powder waste and environmental pollution. Utility Model Content

[0005] The purpose of this invention is to provide a spraying tool for the inner coating of oil pipes, in order to solve the problem that excess powder may diffuse during electrostatic spraying, resulting in powder overflow during the spraying process, which increases powder waste and environmental pollution.

[0006] To achieve the above-mentioned utility model objectives, the present utility model adopts the following technical solution: a spraying tool for the inner coating of oil pipes, including a placement frame, the placement frame being fixed on the top surface of a base, a powder box being movably disposed above the base, a conveying pipe being fixedly connected to the front side of the powder box, a booster pump being disposed on the conveying pipe, a plurality of electrostatic spray guns being disposed on the outer wall of the conveying pipe, and two baffles being detachably disposed on the outer wall of the conveying pipe, the two baffles being located on the front and rear sides of the electrostatic spray guns respectively, each of the two baffles being composed of a plurality of fan-shaped baffles, the plurality of fan-shaped baffles being symmetrically arranged.

[0007] Preferably, the top surface of the base has a movable groove, the rear side of the base has a rotating hole, the rear side of the base is fixed with a drive motor, the output shaft of the drive motor is fixed with a lead screw, the bottom surface of the powder box is fixed with a movable block, the front side of the movable block has a first threaded hole, and the interior of the first threaded hole is threadedly connected to the threaded end of the lead screw.

[0008] Preferably, the inner wall of the movable groove is provided with sliding grooves on the left and right sides, and the movable block is fixed with sliders on the left and right sides, and the two sliders are slidably arranged in the two sliding grooves.

[0009] Preferably, the outer wall of the placement rack has movable holes on the left and right sides respectively, and hydraulic push rods are fixed on the outer wall of the placement rack on the left and right sides respectively, with clamping plates fixed at one end of each of the two hydraulic push rods.

[0010] Preferably, the outer wall of the conveying pipe is provided with a plurality of threaded grooves, the outer walls of the plurality of fan-shaped baffles are respectively fixed with arc-shaped plates, the plurality of arc-shaped plates are provided with second threaded holes, the plurality of second threaded holes are respectively threaded with bolts, and the threaded ends of the plurality of bolts are respectively threaded with the interior of the plurality of threaded grooves.

[0011] Preferably, a connecting pipe is fixedly connected to the top surface of the powder box, and a conveying pump is provided on the connecting pipe.

[0012] Compared with existing technologies, the spraying tool for the inner coating of oil pipes that adopts the above technical solution has the following beneficial effects:

[0013] 1. In use, the operator first places the oil pipe inside the mounting rack. Then, the powder box is moved, causing the delivery pipe, electrostatic spray gun, and fan-shaped baffles to move as well. When the electrostatic spray gun moves inside the oil pipe, a booster pump delivers the powder from the powder box into the delivery pipe, which is then sprayed out through several electrostatic spray guns to complete the coating process. The fan-shaped baffles effectively prevent the diffusion of excess powder. The coordinated use of the powder box, delivery pipe, booster pump, and electrostatic spray gun facilitates spraying inside the oil pipe. Simultaneously, the combined use of the fan-shaped baffles effectively prevents the diffusion of excess powder, reducing powder spillage during spraying. This not only improves spraying efficiency but also reduces powder waste and environmental pollution.

[0014] Second, during use, the operator starts the drive motor to rotate the lead screw, which in turn moves the moving block back and forth, driving the powder box, conveying pipe, electrostatic spray gun, and fan-shaped baffle to move back and forth as well. This simplifies the operation process and automates the movement of the spraying tools. The use of the sliding groove and slider helps to limit the movement of the moving block, preventing the moving block, powder box, and electrostatic spray gun from shifting, thereby improving the stability of the moving block, powder box, and electrostatic spray gun during movement.

[0015] Thirdly, during use, after the worker places the oil pipe inside the mounting rack, the hydraulic push rod is activated to move the clamping plate, which clamps and fixes the oil pipe, ensuring its stability and safety during the spraying operation. The use of the arc-shaped plate and bolts facilitates the worker's disassembly and assembly of the fan-shaped baffle, simplifying the cleaning and replacement process and improving the maintainability and flexibility of the equipment. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of an embodiment.

[0017] Figure 2 This is an exploded view of an embodiment.

[0018] Figure 3 This is an exploded view of the fan-shaped baffle and the arc-shaped plate in the embodiment.

[0019] Figure 4 For the example Figure 2 Enlarged diagram of point A in the middle.

[0020] In the diagram: 1. Placement rack; 2. Base; 3. Powder box; 4. Conveying pipe; 5. Booster pump; 6. Electrostatic spray gun; 7. Fan-shaped baffle plate; 8. Movable groove; 9. Rotating hole; 10. Drive motor; 11. Lead screw; 12. Moving block; 13. First threaded hole; 14. Slide groove; 15. Sliding block; 16. Movable hole; 17. Hydraulic push rod; 18. Clamping plate; 19. Threaded groove; 20. Arc plate; 21. Second threaded hole; 22. Bolt; 23. Connecting pipe; 24. Conveying pump. Detailed Implementation

[0021] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0022] like Figures 1-4As shown, a spraying tool for coating the inner surface of an oil pipe includes a placement frame 1, which is fixed to the top surface of a base 2. A powder box 3 is movably disposed above the base 2. A conveying pipe 4 is fixedly connected to the front side of the powder box 3. A booster pump 5 is provided on the conveying pipe 4. Several electrostatic spray guns 6 are provided on the outer wall of the conveying pipe 4. Two baffles are detachably disposed on the outer wall of the conveying pipe 4. The two baffles are located on the front and rear sides of the electrostatic spray guns 6, respectively. Each of the two baffles consists of several fan-shaped baffles 7, which are symmetrically arranged.

[0023] In use, the operator first places the oil pipe inside the placement rack 1, then moves the powder box 3 to move the delivery pipe 4, electrostatic spray gun 6, and fan-shaped baffle 7. When the electrostatic spray gun 6 moves into the oil pipe, the booster pump 5 delivers the powder from the powder box 3 into the delivery pipe 4, and finally sprays it out through several electrostatic spray guns 6 to achieve the spraying work. At this time, the fan-shaped baffle 7 can effectively block the diffusion of excess powder and reduce the overflow of powder during the spraying process. This not only improves the spraying efficiency but also reduces powder waste and environmental pollution.

[0024] like Figure 1 and Figure 2 As shown, the top surface of the base 2 is provided with a movable groove 8, the rear side of the base 2 is provided with a rotating hole 9, the rear side of the base 2 is fixed with a drive motor 10, the output shaft of the drive motor 10 is fixed with a lead screw 11, the bottom surface of the powder box 3 is fixed with a moving block 12, the front side of the moving block 12 is provided with a first threaded hole 13, and the interior of the first threaded hole 13 is threadedly connected to the threaded end of the lead screw 11.

[0025] In use, the operator starts the drive motor 10 to rotate the lead screw 11, which in turn causes the moving block 12 to move back and forth, driving the powder box 3, the conveying pipe 4, the electrostatic spray gun 6 and the fan-shaped baffle 7 to move back and forth, simplifying the operation process and realizing the automated movement of the spraying tools.

[0026] like Figure 1 and Figure 2 As shown, the inner wall of the movable groove 8 has sliding grooves 14 on the left and right sides respectively, and the movable block 12 has sliders 15 fixed on the left and right sides respectively. The two sliders 15 are slidably arranged in the two sliding grooves 14 respectively. The outer wall of the placement frame 1 has movable holes 16 on the left and right sides respectively, and hydraulic push rods 17 are fixed on the outer wall of the placement frame 1 respectively. One end of the telescopic rod of the two hydraulic push rods 17 is fixed with a clamping plate 18 respectively.

[0027] During use, the cooperation of the sliding groove 14 and the slider 15 helps to limit the movement of the moving block 12, preventing the moving block 12, powder box 3, and electrostatic spray gun 6 from shifting, thereby improving the stability of the moving block 12, powder box 3, and electrostatic spray gun 6 during movement. After the operator places the oil pipe inside the placement rack 1, the hydraulic push rod 17 is activated to move the clamping plate 18, which can clamp and fix the oil pipe, ensuring the stability and safety of the oil pipe during the spraying operation.

[0028] like Figures 1-4 As shown, the outer wall of the conveying pipe 4 is provided with several threaded grooves 19, and the outer walls of several fan-shaped baffles 7 are respectively fixed with arc plates 20. Each of the arc plates 20 is provided with a second threaded hole 21, and bolts 22 are threadedly connected to the several second threaded holes 21. The threaded ends of the several bolts 22 are respectively threadedly connected to the inside of the several threaded grooves 19. The top surface of the powder box 3 is connected to and fixed with a connecting pipe 23, and a conveying pump 24 is provided on the connecting pipe 23.

[0029] During use, the use of the arc-shaped plate 20 and bolts 22 facilitates the disassembly and assembly of the fan-shaped baffle 7, simplifying the cleaning and replacement process and improving the maintainability and flexibility of the equipment. When the powder in the powder tank 3 is insufficient, the operator can replenish the powder by connecting the pipe 23 and the delivery pump 24, simplifying the powder replenishment process and ensuring the continuity and stability of the spraying operation.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A spraying tool for coating the inner surface of an oil pipe, comprising a mounting frame (1) fixed to the top surface of a base (2), characterized in that, A powder box (3) is movably disposed above the base (2). A conveying pipe (4) is fixedly connected to the front side of the powder box (3). A booster pump (5) is provided on the conveying pipe (4). Several electrostatic spray guns (6) are provided on the outer wall of the conveying pipe (4). Two baffles are detachably disposed on the outer wall of the conveying pipe (4). The two baffles are located on the front and rear sides of the electrostatic spray guns (6), respectively. Each of the two baffles is composed of several fan-shaped baffles (7), which are symmetrically arranged.

2. The spraying tool for applying an inner coating to an oil pipe according to claim 1, characterized in that: The top surface of the base (2) is provided with a movable groove (8), the rear side of the base (2) is provided with a rotating hole (9), the rear side of the base (2) is fixed with a drive motor (10), the output shaft of the drive motor (10) is fixed with a lead screw (11), the bottom surface of the powder box (3) is fixed with a moving block (12), the front side of the moving block (12) is provided with a first threaded hole (13), and the interior of the first threaded hole (13) is threadedly connected to the threaded end of the lead screw (11).

3. The spraying tool for applying an inner coating to an oil pipe according to claim 2, characterized in that: The inner wall of the movable groove (8) is provided with sliding grooves (14) on the left and right sides respectively, and the movable block (12) is fixed with sliders (15) on the left and right sides respectively. The two sliders (15) are slidably arranged in the two sliding grooves (14).

4. The spraying tool for applying an inner coating to an oil pipe according to claim 3, characterized in that: The outer wall of the placement rack (1) has movable holes (16) on the left and right sides respectively. The outer wall of the placement rack (1) is fixed with hydraulic push rods (17) on the left and right sides respectively. One end of the telescopic rods of the two hydraulic push rods (17) is fixed with clamping plates (18).

5. The spraying tool for applying an inner coating to an oil pipe according to claim 1, characterized in that: The outer wall of the conveying pipe (4) is provided with a plurality of threaded grooves (19), and the outer walls of the plurality of fan-shaped baffles (7) are respectively fixed with arc-shaped plates (20). The arc-shaped plates (20) are provided with second threaded holes (21), and bolts (22) are threadedly connected in the plurality of second threaded holes (21). The threaded ends of the bolts (22) are respectively threadedly connected to the interior of the plurality of threaded grooves (19).

6. The spraying tool for applying an inner coating to an oil pipe according to claim 5, characterized in that: The top surface of the powder box (3) is connected to a connecting pipe (23), and a conveying pump (24) is provided on the connecting pipe (23).

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