Anticorrosion treatment device for inner wall of spiral pipe
The design of the spiral pipe inner wall anti-corrosion treatment device solves the problems of low efficiency and unevenness of traditional pipe inner wall coating, and realizes efficient and uniform anti-corrosion coating application, improving construction efficiency and anti-corrosion effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-19
- Publication Date
- 2026-03-06
AI Technical Summary
Traditional pipe inner wall coating operations are inefficient, slow, and prone to uneven application and corner-cutting, which affects the anti-corrosion effect.
A spiral-type pipe inner wall anti-corrosion treatment device is adopted, which uses a drive component and a rotary component to realize the rotation and swing of the anti-corrosion brush head. Combined with the telescopic function of the support component, it can adapt to round pipes of different specifications and ensure uniform coating.
It improves construction efficiency and quality, achieves a firm bond between the anti-corrosion coating and the pipe wall, has good water resistance and anti-microbial erosion properties, is easy to operate, and has strong applicability.
Smart Images

Figure CN223970294U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of anti-corrosion treatment devices, and in particular to a spiral pipe inner wall anti-corrosion treatment device, which uses the pendulum principle to achieve the anti-corrosion coating effect on the inner wall of a circular pipe, greatly improving construction efficiency, being easy to operate, and having outstanding effects. Background Technology
[0002] Pipelines are widely used in industries such as petroleum, chemical, and water treatment. However, long-term transportation of corrosive media can lead to internal wall corrosion, affecting service life and safety. Therefore, internal wall corrosion protection is crucial. The technological development of internal wall corrosion protection devices aims to improve corrosion protection, construction efficiency, and maintenance convenience.
[0003] Traditional pipe inner wall coating is usually done manually, which is inefficient, slow and prone to cutting corners, uneven coating, and poor curing quality.
[0004] This spiral pipe inner wall anti-corrosion treatment device uses epoxy coal tar heavy-duty anti-corrosion coating to treat the inner wall of the pipe, ensuring a strong adhesion between the coating and the pipe wall, effectively preventing environmental erosion and pollution. Utilizing the pendulum principle, it achieves a high-quality, all-around anti-corrosion coating effect, exhibiting good water resistance, resistance to microbial erosion, and impermeability, as well as certain electrical insulation properties. The device itself has a simple structure, low cost, is aesthetically pleasing and practical, requires minimal operator expertise (only one person is needed), and offers high construction efficiency and guaranteed quality. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a spiral pipe inner wall anti-corrosion treatment device, which aims to improve the traditional pipe inner wall coating, which is generally done manually, resulting in low operation efficiency, slow construction speed, and problems such as shoddy workmanship and uneven coating.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a spiral pipe inner wall anti-corrosion treatment device, comprising a drive assembly, a rotary assembly, a support assembly and a central shaft, wherein the rotary assembly is sleeved on the central shaft, and a V-shaped fixing groove is fixedly provided on the outer side of the rotary assembly, a spring bolt is provided on the V-shaped fixing groove, and an anti-corrosion brush head is fixedly connected to the V-shaped fixing groove by the spring bolt;
[0007] The rotary assembly includes an outer ring, an inner ring, and balls disposed between the outer ring and the inner ring;
[0008] The drive component is matched with the rotary component to enable the outer ring to rotate.
[0009] The support assembly is a triangular support structure fixedly connected to the central axis. There are two sets of the support assembly, and each set of the support assembly includes three telescopic rods. Each telescopic rod is provided with a support roller at its end.
[0010] As a further description of the above technical solution:
[0011] The drive assembly includes a drive motor, one end of which is rotatably connected to a gear shaft, and one end of which is fixedly connected to a drive gear. A driven gear is externally meshed with the drive gear.
[0012] As a further description of the above technical solution:
[0013] A swing spring is fixedly connected inside the V-shaped fixing groove. The swing spring is fixedly connected to one side of the anti-corrosion brush head. An extension rod is provided inside the central shaft. A groove is opened inside the extension rod.
[0014] As a further description of the above technical solution:
[0015] An adjusting buckle is fixedly connected to one end of the central shaft, and a fixing strip is rotatably connected to the outside of the adjusting buckle.
[0016] As a further description of the above technical solution:
[0017] A tension spring is fixedly connected to the bottom of the fixing strip, and the tension spring is fixedly connected to the end of the central shaft.
[0018] As a further description of the above technical solution:
[0019] The central axis is a hollow shaft.
[0020] As a further description of the above technical solution:
[0021] The anti-corrosion brush head is flat.
[0022] As a further description of the above technical solution:
[0023] The drive assembly is located on the outside of the two sets of support assemblies.
[0024] This utility model has the following beneficial effects:
[0025] 1. In this utility model, the anti-corrosion brush head is first installed in the V-shaped fixing groove. During the working process, the anti-corrosion material is applied more effectively by using a swivel principle. Different specifications of anti-corrosion brush heads can be switched to adapt to different specifications of round pipes. The outer ring is rotated by a drive motor to achieve a more uniform coating effect. Two sets of support components can firmly fix the device to the inner wall of the round pipe. The telescopic rod can adjust the device to adapt to different specifications of round pipes, saving time and effort. It achieves the effect of full contact and uniform coating between the anti-corrosion brush head and the round pipe, solving the problems of low operating efficiency and slow construction speed when applying anti-corrosion materials, improving work efficiency and quality, and making it more practical and convenient.
[0026] 2. In this utility model, the extension rod is inside the central shaft. When using this device, the tension spring can be pressed to make the fixing bar pop out of the groove, and the extension rod can move freely. When the extension rod extends to a suitable length, the tension spring is released to fix the extension rod, thus achieving the effect of extending the length of the central shaft. This solves the cumbersome problem of inconvenience caused by the central shaft being too short, improves work efficiency, saves time and effort, and is more user-friendly. Attached Figure Description
[0027] Figure 1 This is a perspective view of a spiral pipe inner wall anti-corrosion treatment device proposed in this utility model.
[0028] Figure 2 This is a schematic diagram of the drive gear structure of a spiral pipe inner wall anti-corrosion treatment device proposed in this utility model.
[0029] Figure 3 This is a schematic diagram of the anti-corrosion brush head structure of a spiral pipe inner wall anti-corrosion treatment device proposed in this utility model.
[0030] Figure 4 This is a schematic diagram of the extension rod structure of a spiral pipe inner wall anti-corrosion treatment device proposed in this utility model.
[0031] Legend:
[0032] 1. Outer ring; 2. Inner ring; 3. Round tube; 4. Support roller; 5. Telescopic rod; 6. Central shaft; 7. Corrosion-resistant brush head; 8. V-shaped fixing groove; 9. Spring bolt; 10. Driven gear; 11. Tension spring; 12. Ball bearing; 13. Adjusting buckle; 14. Drive gear; 15. Gear shaft; 16. Drive motor; 17. Swing spring; 18. Extension rod; 19. Groove; 20. Fixing strip. Detailed Implementation
[0033] 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.
[0034] Reference Figure 1 and Figure 2 This utility model provides an embodiment of a spiral pipe inner wall anti-corrosion treatment device, including a drive assembly, a rotary assembly, a support assembly, and a central shaft 6. The rotary assembly is sleeved on the central shaft 6, and a V-shaped fixing groove 8 is fixedly provided on the outer side of the rotary assembly. The V-shaped fixing groove 8 can provide a certain swing space for the anti-corrosion brush head 7, so that the anti-corrosion brush head 7 can better achieve uniform coating on the inner wall of the round pipe 3. A spring bolt 9 is provided on the V-shaped fixing groove 8, and the anti-corrosion brush head 7 is fixedly connected to the V-shaped fixing groove 8 by the spring bolt 9. A groove is opened on the V-shaped fixing groove 8, and the spring bolt 9 is stuck in the groove to fix the anti-corrosion brush head 7. When disassembly is required, the spring bolt 9 can be pressed to release the anti-corrosion brush head 7. Different sizes and shapes of anti-corrosion brush heads 7 can be selected according to different specifications and cross-sectional areas of round pipes 3 to match the use, so that the device is adjustable and flexibly applicable to the anti-corrosion treatment of round pipes 3 of different specifications.
[0035] The rotary assembly includes an outer ring 1, an inner ring 2, and ball bearings 12 disposed between the outer ring 1 and the inner ring 2. The inner ring 2 is fixed on the central shaft 6, and the outer ring 1 rotates.
[0036] The drive component and the rotary component are matched and set to make the outer ring 1 rotate. When the outer ring 1 rotates, it drives the anti-corrosion brush head 7 to rotate, so that the anti-corrosion coating is applied more evenly to the inner wall of the round tube 3, and the effect is outstanding.
[0037] The support assembly is a triangular support structure fixedly connected to the central shaft 6. There are two sets of support assemblies. Each set of support assemblies includes three telescopic rods 5. Each telescopic rod 5 has a support roller 4 at its end. The telescopic action of the telescopic rods 5 can make the device fit firmly against the inner wall of the circular tube 3. The support roller 4 can slide against the inner wall of the circular tube 3, which facilitates the movement of the device inside the circular tube 3. The three telescopic rods have stability and are more in line with reality. The two sets of support assemblies can support the device one in front and one behind, so that both ends of the central shaft 6 are firmly and stably inside the circular tube 3.
[0038] Reference Figure 3 and Figure 4The drive assembly includes a drive motor 16, one end of which is rotatably connected to a gear shaft 15. One end of the gear shaft 15 is fixedly connected to a drive gear 14. A driven gear 10 is externally meshed with the drive gear 14. The drive motor drives the gear shaft 15 to rotate, which in turn drives the drive gear 14, which in turn drives the driven gear 10. The outer ring 1 rotates along with the driven gear 10. A swing spring 17 is fixedly connected inside the V-shaped fixing groove 8. The swing spring 17 is fixedly connected to one side of the anti-corrosion brush head 7, allowing the anti-corrosion brush head 7 to swing within the V-shaped fixing groove 8. The swing spring 17 utilizes spring tension to make the anti-corrosion brush head 7 swing and sway within the V-shaped fixing groove. An extension rod 18 is provided inside the central shaft 6, and a groove 19 is formed inside the extension rod 18. One end of the central shaft 6 is fixedly connected to... Adjusting buckle 13, with fixing strip 20 rotatably connected to the outside of adjusting buckle 13. Tension spring 11 is fixedly connected to the bottom of fixing strip 20. Tension spring 11 is fixedly connected to the end of central shaft 6. When central shaft 6 is too short to work, fixing strip 20 can be pulled out of groove 19 when tension spring 11 is pressed, so that extension rod 18 can move freely. When extension rod 18 is extended or retracted to a suitable position, fixing strip 20 is aligned with groove 19, tension spring 11 is released, fixing strip 20 is locked in groove 19, and extension rod 18 is fixed. Central shaft 6 is hollow shaft, and extension rod 18 can be placed inside. Anti-corrosion brush head 7 is flat and can be placed in the inner groove of V-shaped fixing groove 8. Drive component is set outside the two sets of support components. Support components realize the stabilization of device and improve the safety and rationality of device.
[0039] Working principle: When using this spiral pipe inner wall anti-corrosion treatment device, first install the anti-corrosion brush head 7 on the V-shaped fixing groove 8 through the spring bolt 9. Start the drive motor 16 to drive the gear shaft 15 to rotate. The gear shaft 15 drives the drive gear 14 and the driven gear 10 to rotate, thereby causing the outer ring 1 to rotate. The anti-corrosion brush head 7 will rotate along with the outer ring 1. Different specifications of anti-corrosion brush heads 7 can be replaced to suit different round pipes 3. Two sets of triangular support structures are fixed on the central shaft 6. The telescopic rod 5 on the triangular support structure can be adjusted in length to adapt to different round pipe inner walls 3, achieving the effect of uniform coating by the anti-corrosion brush head 7. It adapts to the cross-sectional area of the round pipe 3, solving the cumbersome problem of needing to switch between different specifications of devices for different round pipes 3, and improving practicality and convenience.
[0040] The central shaft 6 is equipped with an extension rod 18. When facing a long round tube 3, the extension rod 18 is used to extend the length of the central shaft 6. Press the tension spring 11 to open the fixing bar, freely extend and retract the extension rod 18 to the appropriate position, align the groove 19 with the fixing bar 20, and release the tension spring 11 to complete the fixation. This achieves the effect of extending the central shaft 6, solving the cumbersome problem caused by the central shaft 6 being too short when workers are working, improving the humanization of the device, and saving time and effort.
[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A spiral type pipe inner wall anticorrosion treatment device, comprising a driving assembly, a rotating assembly, a supporting assembly and a middle shaft (6), characterized in that: The rotating assembly is sleeved on the middle shaft (6), the outer side of the rotating assembly is fixedly provided with a V-shaped fixed groove (8), the V-shaped fixed groove (8) is provided with a spring bolt (9), and the V-shaped fixed groove (8) is fixedly connected with a corrosion-resistant brush head (7) through the spring bolt (9). The rotating assembly comprises an outer ring (1), an inner ring (2) and a ball (12) arranged between the outer ring (1) and the inner ring (2). The driving assembly is matched with the rotating assembly and is used for rotating the outer ring (1). The support assembly is a triangular support structure fixedly connected to the middle shaft (6), the support assembly is provided with two groups, each group of the support assembly comprises three telescopic rods (5), and each telescopic rod (5) is provided with a support roller (4) at the end.
2. A device for anticorrosive treatment of the inner wall of a pipe according to claim 1, characterized in that: The driving assembly comprises a driving motor (16), one end of the driving motor (16) is rotatably connected with a gear shaft (15), one end of the gear shaft (15) is fixedly connected with a driving gear (14), and the outer part of the driving gear (14) is meshedly connected with a driven gear (10).
3. The apparatus for anticorrosive treatment of the inner wall of a pipe according to claim 1, characterized in that: The inner part of the V-shaped fixed groove (8) is fixedly connected with an oscillating spring (17), the oscillating spring (17) is fixedly connected to one side of the corrosion-resistant brush head (7), the middle shaft (6) is internally provided with an extension rod (18), and the extension rod (18) is internally provided with a groove (19).
4. The apparatus for anticorrosive treatment of the inner wall of a pipe according to claim 1, characterized in that: One end of the middle shaft (6) is fixedly connected with an adjusting buckle (13), and the outer side of the adjusting buckle (13) is rotatably connected with a fixed strip (20).
5. A device for anticorrosive treatment of the inner wall of a pipe according to claim 4, characterized in that: The bottom of the fixed strip (20) is fixedly connected with a tensile spring (11), and the tensile spring (11) is fixedly connected to the end of the middle shaft (6).
6. The apparatus for anticorrosive treatment of the inner wall of a pipe according to claim 1, characterized in that: The middle shaft (6) is a hollow shaft.
7. The apparatus for anticorrosive processing of the inner wall of a pipe according to claim 1, wherein: The corrosion-resistant brush head (7) is of a flat type.
8. A device for anticorrosive treatment of the inner wall of a pipe according to claim 2, characterized in that: The driving assembly is arranged on the outer side of the two groups of support assemblies.