PU spiral pipe repairing mechanism

By designing the support block, winding tube, extrusion component, and limiting component in synergy, the problem of cumbersome PU spiral tube repair operation in the existing technology is solved, achieving rapid and stable winding, improving repair efficiency and reducing wear.

CN224135471UActive Publication Date: 2026-04-17NINGBO XIKOU HEMEI PLASTICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO XIKOU HEMEI PLASTICS CO LTD
Filing Date
2025-05-28
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing PU spiral tube repair mechanisms require a complex winding process, resulting in cumbersome operation.

Method used

A repair mechanism was designed, comprising a placement seat, a support block, a rotating rod, a winding tube, an extrusion assembly, and a limiting assembly. The PU spiral tube is guided through the through hole of the support block, and the extrusion block and spring work together to achieve rapid winding and limiting, preventing loosening.

Benefits of technology

It enables rapid winding of PU spiral tubes, avoids complex operations, ensures winding stability, reduces wear, and improves repair efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a PU spiral pipe repairing mechanism which comprises a placing base, supporting blocks are arranged on the two sides of the top of the placing base, a rotating rod is rotationally arranged between the supporting blocks, one end of the rotating rod extends to the outer portion of the supporting blocks and is provided with a handle, and a winding pipe used for winding a PU spiral pipe is arranged outside the rotating rod. One end of a PU spiral pipe penetrates through a through hole in a supporting block, then the PU spiral pipe is wound outside a winding pipe, finally a pull rod is pulled to drive an extrusion block to move upwards, one end of the PU spiral pipe is placed in a U-shaped frame, then the pull rod is loosened, and the PU spiral pipe is wound outside the winding pipe. When the PU spiral pipe is wound, an extrusion block moves downwards under the action of a compression spring so as to extrude one end of the PU spiral pipe, at the moment, a handle is rotated to drive a winding pipe to rotate, and meanwhile, the PU spiral pipe outside the winding pipe is wound outside the winding pipe, so that the PU spiral pipe can be rapidly wound, and a complex winding procedure is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of spiral tube repair technology, specifically to a PU spiral tube repair mechanism. Background Technology

[0002] PU spiral tubing is a type of flexible tubing with a spiral shape, primarily composed of polyurethane (PU) material. It typically exhibits good flexibility and elasticity. From a material perspective, it can be classified into polyester-type PU spiral tubing and polyether-type PU spiral tubing. According to its application, it can be classified into industrial PU spiral tubing, food-grade PU spiral tubing, medical PU spiral tubing, etc. According to its structure, it can be classified into ordinary PU spiral tubing, steel wire-reinforced PU spiral tubing, and plastic-reinforced PU spiral tubing, etc.

[0003] Chinese utility model patent (authorization announcement number CN219493481 U) discloses a PU spiral tube repair mechanism, the technical solution of which includes: a sleeve body, the sleeve body having holes at both ends and limit rods passing through them, a spiral tube body being wound on the sleeve body on the opposite side of the two limit rods, and clamps being movably installed on the upper and lower sides of the sleeve body respectively.

[0004] The aforementioned repair mechanism involves winding a spiral tube around a sleeve, then using two clamping plates in conjunction with a limiting screw and nut to hold the nut in place. Finally, the spiral tube is heated in a shrink-film drying oven to reshape it and complete the repair. However, each time the spiral tube is repaired, the nuts at both ends of the screw need to be rotated separately, making the work rather cumbersome. Utility Model Content

[0005] To address the aforementioned issues, a PU spiral tube repair mechanism is provided. This mechanism involves passing one end of the PU spiral tube through a through-hole inside a support block, then winding the PU spiral tube around the outside of a winding tube. Pulling the lever moves the compression block upwards, placing one end of the PU spiral tube inside a U-shaped frame. Releasing the lever causes the compression block to move downwards under the pressure of a compression spring, thus compressing one end of the PU spiral tube. Turning the handle rotates the winding tube, simultaneously winding the PU spiral tube around the outside of the winding tube. This allows for rapid winding of the PU spiral tube, avoiding a complex winding process.

[0006] To address the problems of existing technologies, this utility model provides a PU spiral tube repair mechanism, including a placement base. Support blocks are provided on both sides of the top of the placement base. A rotating rod is rotatably mounted between the support blocks. One end of the rotating rod extends to the outside of the support block and is provided with a handle. A winding tube for winding the PU spiral tube is provided outside the rotating rod. A pressing component for pressing one end of the PU spiral tube is provided outside the winding tube. A limiting frame is provided on the top of the support block, and a limiting component for limiting the position of the PU spiral tube is provided inside the limiting frame.

[0007] Preferably, one of the support blocks has a through hole for the movement of the PU spiral tube, and a guide roller for guiding the movement of the PU spiral tube is rotatably disposed inside the through hole.

[0008] Preferably, the extrusion assembly includes a U-shaped frame disposed outside the winding tube, an extrusion block movably disposed inside the U-shaped frame, and fixing blocks disposed on both sides of the extrusion block. The inner wall of the U-shaped frame is provided with a sliding groove for the fixing blocks to move, and a guide rod is disposed inside the sliding groove. The fixing blocks are provided with through holes adapted to the guide rods, and a compression spring is sleeved on the outside of the guide rods. One end of the compression spring is connected to the top of the fixing block, and the other end of the compression spring is connected to the inside of the sliding groove.

[0009] Preferably, the top of the extrusion block is provided with a pull rod for pulling.

[0010] Preferably, the extrusion assembly includes spring telescopic rods disposed on both sides of the bottom of the extrusion block, and the telescopic ends of the spring telescopic rods are provided with arc-shaped limiting plates for limiting the PU spiral tube.

[0011] Preferably, the top of the arc-shaped limiting plate is rotatably provided with multiple ball bearings.

[0012] The advantages of this utility model compared to the prior art are:

[0013] 1. By passing one end of the PU spiral tube through the through hole inside the support block, and then winding the PU spiral tube around the outside of the winding tube, the pull rod is pulled to move the extrusion block upward, placing one end of the PU spiral tube inside the U-shaped frame. Then, the pull rod is released, and the extrusion block will move downward under the action of the compression spring, thus extruding one end of the PU spiral tube. At this time, the handle is turned to drive the winding tube to rotate, and the PU spiral tube outside the winding tube will also be wound around the outside of the winding tube. This allows for quick winding of the PU spiral tube, avoiding a complicated winding process.

[0014] 2. The spring telescopic rod, in conjunction with the arc-shaped limiting plate, can compress the PU spiral tube during winding, preventing it from becoming loose. At the same time, the ball bearings at the bottom of the arc-shaped limiting block can reduce wear when the PU spiral tube comes into contact with the arc-shaped limiting plate. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a PU spiral tube repair mechanism.

[0016] Figure 2 This is a schematic diagram of the structure of the guide roller in a PU spiral tube repair mechanism.

[0017] Figure 3 This is a schematic diagram of the internal structure of a U-shaped frame in a PU spiral tube repair mechanism.

[0018] Figure 4 This is a schematic diagram of the extrusion component in a PU spiral tube repair mechanism.

[0019] Figure 5 This is a schematic diagram of the limiting component in a PU spiral tube repair mechanism.

[0020] Figure 6 This is a schematic diagram of the ball bearing structure in a PU spiral tube repair mechanism.

[0021] The following are the labels in the diagram: 1. Placement seat; 2. Support block; 3. Rotating rod; 4. Limiting frame; 5. Arc-shaped limiting plate; 6. Winding tube; 7. Guide roller; 8. U-shaped frame; 9. Extrusion block; 10. Pull rod; 11. Fixing block; 12. Guide rod; 13. Compression spring; 14. Spring telescopic rod; 15. Ball bearing. Detailed Implementation

[0022] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0023] like Figures 1 to 6 As shown, this utility model provides:

[0024] A PU spiral tube repair mechanism includes a placement base 1, with support blocks 2 on both sides of the top of the placement base 1. A rotating rod 3 is rotatably arranged between the support blocks 2. One end of the rotating rod 3 extends to the outside of the support block 2 and is provided with a handle. A winding tube 6 for winding the PU spiral tube is provided outside the rotating rod 3. A pressing component for pressing one end of the PU spiral tube is provided outside the winding tube 6. A limit frame 4 is provided on the top of the support block 2. A limiting component for limiting the PU spiral tube is provided inside the limit frame 4.

[0025] By turning the handle, the winding tube 6 is rotated, and the PU spiral tube outside the winding tube 6 will also be wound around the outside of the winding tube 6. This allows the PU spiral tube to be wound quickly, avoiding a complicated winding process. At the same time, the extrusion component can be used to extrude one end of the PU spiral tube to prevent the PU spiral tube from becoming loose during winding. The limiting component can be used to limit the PU spiral tube during winding.

[0026] like Figure 2 As shown, one of the support blocks 2 has a through hole for the movement of the PU spiral tube, and a guide roller 7 for guiding the movement of the PU spiral tube is rotatably installed inside the through hole.

[0027] The carefully designed guide roller 7 inside the through hole effectively ensures that the PU spiral tube runs more smoothly during movement, thus avoiding any possible jamming.

[0028] like Figure 3 and Figure 4 As shown, the extrusion assembly includes a U-shaped frame 8 disposed outside the winding tube 6. An extrusion block 9 is movably disposed inside the U-shaped frame 8. Fixing blocks 11 are disposed on both sides of the extrusion block 9. A sliding groove is provided on the inner wall of the U-shaped frame 8 for the fixing blocks 11 to move. A guide rod 12 is disposed inside the sliding groove. A through hole adapted to the guide rod 12 is provided inside the fixing block 11. A compression spring 13 is sleeved on the outside of the guide rod 12. One end of the compression spring 13 is connected to the top of the fixing block 11, and the other end of the compression spring 13 is connected to the inside of the sliding groove.

[0029] By placing one end of the PU spiral tube inside the U-shaped frame 8 and then releasing the pull rod 10, the extrusion block 9 moves downward under the elastic force of the compression spring 13, thereby applying pressure to one end of the PU spiral tube. Then, by turning the handle, the winding tube 6 can be rotated.

[0030] like Figure 3 and Figure 4 As shown, the top of the extrusion block 9 is provided with a pull rod 10 for pulling.

[0031] Pulling the lever 10 moves the extrusion block 9 upward, making it easy to place one end of the PU spiral tube inside the U-shaped frame 8. This allows the extrusion block 9 to be squeezed and wound, facilitating subsequent repair work.

[0032] like Figure 3 and Figure 4 As shown, the extrusion assembly includes spring telescopic rods 14 disposed on both sides of the bottom of the extrusion block 9, and the telescopic ends of the spring telescopic rods 14 are provided with arc-shaped limiting plates 5 for limiting the PU spiral tube.

[0033] The spring telescopic rod 14 works closely with the arc-shaped limiting plate 5 to jointly compress the PU spiral tube during the winding process. This ensures effective compression of the PU spiral tube, preventing loosening that may occur during winding and guaranteeing winding stability.

[0034] like Figure 6 As shown, the top of the arc-shaped limiting plate 5 is provided with multiple ball bearings 15 for rotation.

[0035] By installing ball bearings 15 at the bottom of the arc-shaped limiting block, the wear phenomenon caused when the PU spiral tube comes into contact with the arc-shaped limiting plate 5 can be effectively reduced.

[0036] When repairing the PU spiral tube, first pass one end of the PU spiral tube through the through hole inside the support block 2. Then, wrap the PU spiral tube around the outside of the winding tube 6. Finally, pull the lever 10 to move the extrusion block 9 upward, placing one end of the PU spiral tube inside the U-shaped frame 8. Then, release the lever 10. Under the action of the compression spring 13, the extrusion block 9 will move downward, thus extruding one end of the PU spiral tube. At this time, turn the handle to rotate the winding tube 6, and the PU spiral tube outside the winding tube 6 will also wrap around the outside of the winding tube 6. It can quickly wind PU spiral tubes, avoiding complicated winding procedures. When the winding tube 6 winds the PU spiral tube, the spring telescopic rod 14 works with the arc-shaped limiting plate 5 to squeeze the PU spiral tube during winding, preventing it from becoming loose. At the same time, the ball bearings 15 at the bottom of the arc-shaped limiting block can reduce wear when the PU spiral tube comes into contact with the arc-shaped limiting plate 5. After the PU spiral tube is wound, this device is placed in the shrink film drying oven for heating, and finally the cooled PU spiral tube is repaired.

[0037] The above embodiments merely illustrate one or several implementation methods of the PU spiral tube repair mechanism of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

[0038] In this utility model, unless otherwise explicitly specified and limited, for example, it can be a fixed connection, a detachable connection, or an integral part; 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 or an interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. A PU spiral tube repairing mechanism, characterized in that, The device includes a placement base (1), with support blocks (2) on both sides of the top of the placement base (1). A rotating rod (3) is rotatably arranged between the support blocks (2). One end of the rotating rod (3) extends to the outside of the support block (2) and is provided with a handle. A winding tube (6) for winding PU spiral tube is provided outside the rotating rod (3). An extrusion assembly for extruding one end of the PU spiral tube is provided outside the winding tube (6). A limit frame (4) is provided on the top of the support block (2). A limit assembly for limiting the PU spiral tube is provided inside the limit frame (4).

2. A PU spiral tube repairing mechanism as claimed in claim 1, wherein, One of the support blocks (2) has a through hole for the movement of the PU spiral tube, and a guide roller (7) for guiding the movement of the PU spiral tube is rotatably arranged inside the through hole.

3. The PU spiral tube repairing mechanism according to claim 1, wherein, The extrusion assembly includes a U-shaped frame (8) disposed outside the winding tube (6). An extrusion block (9) is movably disposed inside the U-shaped frame (8). Fixing blocks (11) are disposed on both sides of the extrusion block (9). A sliding groove is provided on the inner wall of the U-shaped frame (8) for the fixing blocks (11) to move. A guide rod (12) is disposed inside the sliding groove. A through hole adapted to the guide rod (12) is provided inside the fixing block (11). A compression spring (13) is sleeved on the outside of the guide rod (12). One end of the compression spring (13) is connected to the top of the fixing block (11), and the other end of the compression spring (13) is connected to the inside of the sliding groove.

4. The PU spiral tube repairing mechanism according to claim 3, wherein, The top of the extrusion block (9) is provided with a pull rod (10) for pulling.

5. The PU spiral tube repairing mechanism according to claim 1, wherein, The extrusion assembly includes spring telescopic rods (14) disposed on both sides of the bottom of the extrusion block (9), and the telescopic ends of the spring telescopic rods (14) are provided with arc-shaped limiting plates (5) for limiting the PU spiral tube.

6. A PU spiral tube repairing mechanism as claimed in claim 5, wherein, The top of the arc-shaped limiting plate (5) is rotatably equipped with multiple ball bearings (15).

Citation Information

Patent Citations

  • PU spiral pipe repairing mechanism

    CN219493481U