A handheld pipe inner wall powder coating equipment

Abstract

This utility model relates to the field of powder coating technology, and in particular to a handheld tube inner wall powder coating device, including a central orifice plate. Transparent frames are fixedly connected to the left and right sides and the top and bottom ends of the central orifice plate. A transmission slider is slidably connected to the inner side of the transparent frames, and a limiting clamping plate is fixedly connected to the rear of the transmission slider. In this utility model, the transparent frames, limiting clamping plate, transmission slider, adjusting screw, adjusting handle, and scale lines facilitate the handheld tube inner wall powder coating device to pre-fix the central orifice plate to the inlet center position of the tube body before uniformly powder coating the inner wall of the tube body. This allows the powder coating components on the central orifice plate to be precisely centered and inserted into the interior of the tube body, enabling the device to perform uniform spraying operations and preventing uneven distribution of coating on the inner wall of the tube due to improper insertion.

Description

Technical Field

[0001] This utility model relates to the field of powder coating technology, specifically a handheld powder coating device for the inner wall of a pipe. Background Technology

[0002] When manufacturing and processing metal pipes, applying a protective powder coating layer to the inner wall of the pipe using powder coating equipment can increase the wear resistance of the inner wall of the pipe, reduce wear caused by media flow, and effectively prevent the media from corroding the pipe. It is especially suitable for pipes in high temperature, high pressure, and multi-media mixed conditions, thereby extending the service life.

[0003] Currently, existing handheld pipe inner wall powder coating equipment typically requires workers to hold the handle and insert the spray nozzle into the pipe for powder coating. However, due to improper operation, the handheld equipment may not be inserted into the pipe in a centered position. This uneven insertion can lead to uneven distribution of the coating on the inner wall of the pipe, affecting the overall uniformity of the coating. Furthermore, the uneven coating distribution necessitates recoating, which not only wastes coating but also reduces coating efficiency. Therefore, to address these issues, a handheld pipe inner wall powder coating equipment is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a handheld tube inner wall powder coating device to solve the problem mentioned in the background art, where uneven powder coating is easily caused by the non-centered insertion of the spray nozzle during use of the existing handheld tube inner wall powder coating device.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A handheld tube inner wall powder coating device includes a central aperture plate. Transparent frames are fixedly connected to the left and right sides and the top and bottom ends of the central aperture plate. A transmission slider is slidably connected to the inner side of the transparent frames. A limiting clamp is fixedly connected to the rear of the transmission slider. An adjusting screw is threadedly connected to the inner side of the transmission slider. One end of the adjusting screw extends to the outside of the transparent frames and is fitted with an adjusting handle. A limiting sleeve is inserted into the inner side of the central hole at the front end of the central aperture plate. Sliding strips that are slidably connected to the central aperture plate are fixedly connected to the top and bottom ends of the limiting sleeve. Racks that are slidably connected to the central aperture plate are fixedly connected to the left and right sides of the limiting sleeve. A long spray pipe is inserted into the inner side of the limiting sleeve.

[0007] Preferably, a short post is fixedly connected around the front edge of the central hole plate, and a traction ring is fixedly connected to the front end of the short post. The traction ring and the central hole plate are coaxially arranged.

[0008] Preferably, side frames are fixedly connected to both sides of the central hole at the front end of the central hole disk, and a drive gear is rotatably connected to the inner side of the side frame, with the drive gear meshing with the rack.

[0009] Preferably, the rear end of the long nozzle is connected to a multi-directional nozzle, and the front end of the long nozzle is connected to a powder coating suction connector. The outer periphery of the powder coating suction connector is provided with a plurality of conical outlets arranged in a ring array.

[0010] Preferably, the front end face of the transparent frame is provided with scale lines, a pipe body is inserted between the four limiting clamps, the multi-directional nozzle extends to the inside of the pipe body, the adjusting screw and the transparent frame are rotatably connected together, and the four limiting clamps are all arranged in a semi-ring structure.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] In this invention, the transparent frame, limiting clamp, transmission slider, adjusting screw, adjusting handle, and scale lines facilitate the use of a handheld pipe inner wall powder coating device. Before uniformly powder coating the inner wall of the pipe body, the device, under the connection and limitation of the central hole plate, pre-fixes the central hole plate to the inlet center position of the pipe body through a clamping and limiting structure composed of the transparent frame, limiting clamp, transmission slider, adjusting screw, adjusting handle, and scale lines. This allows the powder coating components on the central hole plate to be precisely centered and inserted into the interior of the pipe body, enabling the device to perform uniform spraying operations. This avoids uneven distribution of paint on the inner wall of the pipe due to non-centered insertion, which would affect the overall uniformity of the coating and reduce the number of recoating operations, thus improving spraying efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the multi-directional nozzle installation structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the main structure of the central hole plate of this utility model.

[0016] In the diagram: 1. Central aperture plate; 2. Transparent frame; 3. Limiting clamp; 4. Transmission slider; 5. Adjusting screw; 6. Adjusting throttle; 7. Traction ring; 8. Short column; 9. Limiting sleeve; 10. Sliding bar; 11. Rack; 12. Side retaining frame; 13. Drive gear; 14. Long nozzle; 15. Powder coating suction connector; 16. Fitting body; 17. Multi-directional nozzle; 18. Scale line. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-3 This utility model provides a technical solution:

[0019] A handheld tube inner wall powder coating device includes a central hole plate 1. A transparent frame 2 is fixedly connected to the left and right sides and the top and bottom ends of the central hole plate 1. A transmission slider 4 is slidably connected to the inner side of the transparent frame 2. A limiting clamp 3 is fixedly connected to the rear of the transmission slider 4. An adjusting screw 5 is threadedly connected to the inner side of the transmission slider 4. One end of the adjusting screw 5 extends to the outside of the transparent frame 2 and is fitted with an adjusting handle 6. A limiting sleeve 9 is inserted into the inner side of the central hole at the front end of the central hole plate 1. Sliding strips 10, which are slidably connected to the central hole plate 1, are fixedly connected to the top and bottom ends of the limiting sleeve 9. Racks 11, which are slidably connected to the central hole plate 1, are fixedly connected to the left and right sides of the limiting sleeve 9. A long spray pipe 14 is inserted into the inner side of the limiting sleeve 9.

[0020] like Figure 1 and Figure 2 As shown, short columns 8 are fixedly connected around the front edge of the central hole plate 1. A traction ring 7 is fixedly connected to the front end of each short column 8. The traction ring 7 and the central hole plate 1 are coaxially arranged. With the fixed connection of multiple short columns 8, the traction ring 7 mainly assists the worker in hand-held traction operation of the device during actual use. Side clamping frames 12 are fixedly connected to both sides of the central hole at the front end of the central hole plate 1. A drive gear 13 is rotatably connected to the inner side of the side clamping frame 12. The drive gear 13 meshes with the rack 11. This structure facilitates the operation of the device. In use, by rotating the drive gear 13, the meshing transmission connection allows the long nozzle 14 to move back and forth, thus facilitating the equipment to perform powder coating processing deep into the pipe body 16. The rear end of the long nozzle 14 is connected to a multi-directional nozzle 17, and the front end of the long nozzle 14 is connected to a powder coating suction connector 15. The outer periphery of the powder coating suction connector 15 is provided with several conical outlets arranged in a ring array. Since a powder coating interface is reserved on the right side of the powder coating suction connector 15, this setting is conducive to reserving a quick connection to the powder coating delivery pipeline before the equipment is used.

[0021] like Figure 1 , Figure 2 and Figure 3As shown, the front end of the transparent frame 2 is provided with scale lines 18, and the pipe body 16 is inserted between the four limiting clamps 3. The multi-directional nozzle 17 extends to the inside of the pipe body 16. The adjusting screw 5 and the transparent frame 2 are rotatably connected together. The four limiting clamps 3 are all set in a semi-ring structure. The four limiting clamps 3 are all coaxially set with the central hole plate 1. The setting of scale lines 18 is conducive to workers to make precise adjustments to the limiting clamps 3.

[0022] Workflow: Before using the powder coating equipment of this utility model, it is necessary to ensure that the equipment is connected to the powder coating delivery pipeline through the powder coating suction connector 15, and that the pipe body 16 is placed stably. When using this handheld pipe inner wall powder coating equipment, before use, the spacing between the four limiting clamps 3 can be adjusted according to the actual operating diameter of the pipe body 16. Specifically, under the connection and limitation of the transparent frame 2 and the central hole plate 1, the four adjusting screws 5 are rotated in sequence by the adjusting handle 6. At this time, the transmission slider 4 is used to adjust the engraving... The indicator line 18 serves as a precise reference standard. The transmission slider 4 pulls the limiting clamps 3 towards or away from the center of the central orifice plate 1, thus adjusting the clamping size between the four limiting clamps 3 to match the operating diameter of the pipe body 16. Next, the traction ring 7 is firmly grasped to pull the device, aligning it with the interior of the pipe body 16. The multi-directional nozzle 17 is then inserted into the inlet position of the pipe body 16. Under the connection of the central orifice plate 1, the four limiting clamps 3 will precisely abut against the outer surface of the pipe body 16. This can be achieved by adjusting the rotation... Tighten and rotate the six pairs of adjusting screws 5 to further shorten the distance between the four limiting clamps 3 and the pipe body 16, thereby clamping and fixing it. At this time, the center hole plate 1 can be assembled to the inlet center position of the pipe body 16, ensuring that the subsequent long nozzle 14 can be inserted into the pipe body 16 in the center. Then, under the connection and limitation of the center hole plate 1 and the side clamping frame 12, the two drive gears 13 can be manually rotated in the same direction. Under the meshing transmission connection setting, the two racks 11 will carry the limiting sleeve 9, the slide bar 10, and the long nozzle. The nozzles 14 and 17 move towards the depth of the pipe body 16. As the powder coating medium is continuously fed from the powder coating output pipe into the powder coating suction connector 15 and then into the long spray pipe 14, the equipment will spray the powder coating medium in multiple directions through the multi-directional nozzles 17 to uniformly coat the inner wall of the pipe body 16. After the coating is completed, the four limiting clamps 3 are adjusted in reverse to remove the clamping limitation on the pipe body 16, and the equipment is pulled out from the inside of the pipe body 16. Finally, the long spray pipe 14 is reset and adjusted to its original state to complete the entire processing operation.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A handheld pipe inner wall powder coating device, comprising a central orifice plate (1), characterized in that: The left and right sides and the top and bottom ends of the central hole plate (1) are all fixedly connected to transparent square frames (2). The inner side of the transparent square frame (2) is slidably connected to a transmission slider (4). The rear of the transmission slider (4) is fixedly connected to a limiting clamp (3). The inner side of the transmission slider (4) is threadedly connected to an adjusting screw (5). One end of the adjusting screw (5) extends to the outside of the transparent square frame (2) and is fitted with an adjusting handle (6). The inner side of the central hole at the front end of the central hole plate (1) is inserted into a limiting sleeve (9). The upper and lower ends of the limiting sleeve (9) are fixedly connected to slide bars (10) that are slidably connected to the central hole plate (1). The left and right sides of the limiting sleeve (9) are fixedly connected to racks (11) that are slidably connected to the central hole plate (1). The inner side of the limiting sleeve (9) is inserted into a long nozzle (14).

2. The handheld pipe inner wall powder coating equipment according to claim 1, characterized in that: A short column (8) is fixedly connected around the front edge of the central hole plate (1), and a traction ring (7) is fixedly connected to the front end of the short column (8). The traction ring (7) and the central hole plate (1) are coaxially arranged.

3. The handheld pipe inner wall powder coating equipment according to claim 1, characterized in that: Side frames (12) are fixedly connected to the left and right sides of the center hole at the front end of the central hole of the central hole disk (1). A drive gear (13) is rotatably connected to the inner side of the side frame (12). The drive gear (13) and the rack (11) are meshed together.

4. The handheld pipe inner wall powder coating equipment according to claim 1, characterized in that: The rear end of the long nozzle (14) is connected to a multi-directional nozzle (17), and the front end of the long nozzle (14) is connected to a powder coating suction connector (15). The outer periphery of the powder coating suction connector (15) is provided with several conical outlets arranged in a ring array.

5. A handheld pipe inner wall powder coating device according to claim 4, characterized in that: The front end of the transparent frame (2) is provided with scale lines (18), and the pipe body (16) is inserted between the four limiting clamps (3). The multi-directional nozzle (17) extends to the inside of the pipe body (16). The adjusting screw (5) and the transparent frame (2) are rotatably connected together. The four limiting clamps (3) are all arranged in a semi-ring structure. The four limiting clamps (3) are all coaxially arranged with the central hole plate (1).

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