High-temperature-resistant polytetrafluoroethylene heat shrink tube

Abstract

The utility model discloses a high-temperature-resistant polytetrafluoroethylene heat shrink tube, which comprises a piece to be coated, a heat shrink tube, an arc-shaped flattening piece, a threaded sleeve, a threaded rod and an operating grip, the piece to be coated is sleeved on the inner diameter of the heat shrink tube, and the outer diameter of the heat shrink tube is in butt joint with an inner groove of the arc-shaped flattening piece. According to the high-temperature-resistant polytetrafluoroethylene heat shrink tube, the design of the rotating shaft is suitable for surface rolling treatment operation after heat shrink treatment of the heat shrink tube is completed, the outer diameter of the heat shrink tube is in butt joint with an inner groove of the arc-shaped flattening piece after heat shrink treatment is completed, and the heat shrink tube is in butt joint with the inner groove of the arc-shaped flattening piece. The arc-shaped flattening piece is attached to the heat shrink tube to roll, the triangular supporting strip supports the rubber scraping strip to stably extrude the surface layer of the heat shrink tube to conduct surface layer flattening treatment, the installation frame of the side pressing roller is elastically supported through the supporting spring set to guarantee that the pressing roller is stably attached to the surface of the heat shrink tube to conduct rolling treatment, and it is guaranteed that the surface of the heat shrink tube is smooth and free of creases. Joints of a protected product should be tight, and the phenomenon of bumps does not exist.

Description

Technical Field

[0001] This utility model relates to a high-temperature resistant polytetrafluoroethylene heat shrink tubing, belonging to the field of heat shrink tubing technology. Background Technology

[0002] Teflon heat shrink tubing is made from polytetrafluoroethylene (PTFE) through extrusion and expansion, possessing high temperature resistance (175℃~260℃), corrosion resistance, high insulation, and excellent electrical high-temperature resistance. Teflon tubing is also called (PTFE) polytetrafluoroethylene heat shrink tubing (sleeve) or Teflon heat shrink tubing. When starting heat shrinking, be sure to rotate along the axis of the Teflon heat shrink tubing. Avoid heating only in one position, as this will lead to uneven shrinkage. Continue rotating and heating until the entire circle is completely shrunk and becomes transparent. After heat shrinking, the surface of the heat shrink tubing may be uneven, affecting the sealing effect. Utility Model Content

[0003] The purpose of this invention is to provide a high-temperature resistant polytetrafluoroethylene heat shrink tubing to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a high-temperature resistant polytetrafluoroethylene heat shrink tubing, comprising a part to be covered, a heat shrink tubing, an arc-shaped flattening part, a threaded sleeve, a threaded rod, and an operating handle. The part to be covered is fitted into the inner diameter of the heat shrink tubing, and the outer diameter of the heat shrink tubing is connected to the inner groove of the arc-shaped flattening part. The threaded sleeve welded at the top center of the arc-shaped flattening part is screwed onto the operating handle by the threaded rod.

[0005] Preferably, the arc-shaped flattening component consists of an arc-shaped sleeve, an arc-shaped rubber pad, side pressure rollers, and a top pressure rod. Arc-shaped rubber pads are attached to both ends of the bottom of the arc-shaped sleeve frame. Side pressure rollers are positioned and installed on both sides of the vertical end face of the inner groove of the arc-shaped sleeve. A top pressure rod is positioned and installed at the arc apex of the inner groove of the arc-shaped sleeve.

[0006] Preferably, the top pressure rod consists of a horizontal plate, an inner triangular support strip, and a rubber scraper. The inner triangular support strip is welded and installed at the axial position of the horizontal plate, and the rubber scraper is fixedly installed on the outer end face of the inner triangular support strip with glue.

[0007] Preferably, the side pressure roller consists of a mounting frame, a pressure roller, and a support spring assembly. The mounting frame positions and mounts the pressure roller via a rotating shaft, and the support spring assembly is positioned and mounted on the outer frame of the mounting frame.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: The arc-shaped flattening component consists of an arc-shaped sleeve, an arc-shaped rubber pad, a side pressure roller, and a top pressure rod. The top pressure rod consists of a horizontal plate, an inner triangular support strip, and a rubber scraper. The side pressure roller consists of an installation frame, a pressure roller, and a support spring assembly. After heat shrinking, the outer diameter of the heat shrink tube is aligned with the inner groove of the arc-shaped flattening component. When the operation handle is used, the arc-shaped flattening component rolls against the heat shrink tube. The inner triangular support strip supports the rubber scraper to stably press the surface of the heat shrink tube, performing surface flattening treatment. The installation frame of the side pressure roller is elastically supported by the support spring assembly to ensure that the pressure roller stably adheres to the surface of the heat shrink tube for roll pressing treatment, ensuring that the surface of the heat shrink tube is smooth and free of creases. The seams of the protected product should be tight and free of bulges. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model;

[0010] Figure 2 This is a schematic diagram of the arc-shaped flattening component of this utility model;

[0011] Figure 3 This is a schematic diagram of the top pressure rod of this utility model;

[0012] Figure 4 This is a schematic diagram of the side pressure roller of this utility model.

[0013] In the diagram: 1. Part to be covered, 2. Heat shrink tubing, 3. Arc-shaped flattening part, 4. Threaded sleeve, 5. Threaded rod, 6. Operating handle, 7. Arc-shaped sleeve, 8. Arc-shaped rubber pad, 9. Side pressure roller, 10. Top pressure rod, 11. Horizontal plate, 12. Inner triangular support bar, 13. Rubber scraper, 14. Mounting frame, 15. Pressure roller, 16. Support spring assembly. Detailed Implementation

[0014] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0015] like Figures 1-4 As shown, a high-temperature resistant polytetrafluoroethylene heat shrink tubing includes a part to be covered 1, a heat shrink tubing 2, an arc-shaped flattening part 3, a threaded sleeve 4, a threaded rod 5, and an operating handle 6. The part to be covered 1 is fitted into the inner diameter of the heat shrink tubing 2, and the outer diameter of the heat shrink tubing 2 is aligned with the inner groove of the arc-shaped flattening part 3. The threaded sleeve 4, welded to the top center of the arc-shaped flattening part 3, is screwed onto the operating handle 6 via the threaded rod 5.

[0016] The arc-shaped flattening component 3 consists of an arc-shaped sleeve 7, an arc-shaped rubber pad 8, a side pressure roller 9, and a top pressure rod 10. The arc-shaped rubber pad 8 is attached to both ends of the bottom of the arc-shaped sleeve 7. The side pressure roller 9 is positioned and installed on both sides of the vertical end face of the inner groove of the arc-shaped sleeve 7. The top pressure rod 10 is positioned and installed at the arc apex of the inner groove of the arc-shaped sleeve 7. The inner groove of the arc-shaped sleeve 7 is connected to the outer diameter of the heat shrink tube 2.

[0017] The top pressure rod 10 is composed of a horizontal plate 11, an inner triangular support strip 12, and a rubber scraper 13. The inner triangular support strip 12 is positioned and welded to the axial position of the horizontal plate 11. The rubber scraper 13 is fixedly installed on the outer end face of the inner triangular support strip 12 with glue. The inner triangular support strip 12 supports the rubber scraper 13 to stably compress the surface of the heat shrink tube 2 and flatten the surface.

[0018] The side pressure roller 9 consists of a mounting frame 14, a pressure roller 15, and a support spring assembly 16. The mounting frame 14 is positioned and mounted on the pressure roller 15 via a rotating shaft. The support spring assembly 16 is positioned and mounted on the outer frame of the mounting frame 14. The mounting frame 14 uses the support spring assembly 16 to elastically support and ensure that the pressure roller 15 is stably attached to the surface of the heat shrink tubing 2 for roll pressing, ensuring that the surface of the heat shrink tubing 2 is smooth and free of creases. The seams of the protected product should be tight and free of bulges.

[0019] Specific usage: A high-temperature resistant polytetrafluoroethylene heat shrink tubing. This shaft design is suitable for surface roller pressing after the heat shrink tubing has been heat-shrinked. After heat shrinking, the outer diameter of the heat shrink tubing is aligned with the inner groove of the arc-shaped flattening component. The operator uses the handle to roll the arc-shaped flattening component against the heat shrink tubing. The triangular support strip supports the rubber scraper to stably press the surface of the heat shrink tubing, performing surface flattening. The mounting frame of the side pressure roller is elastically supported by the support spring group to ensure that the pressure roller stably adheres to the surface of the heat shrink tubing for roller pressing, ensuring that the surface of the heat shrink tubing is smooth and free of creases. The seams of the protected product should be tight and free of bulges.

[0020] The above description is a preferred embodiment of the present utility model. For those skilled in the art, any changes, modifications, substitutions and variations made to the implementation methods without departing from the principles and spirit of the present utility model, based on the teachings of the present utility model, still fall within the protection scope of the present utility model.

Claims

1. A high temperature resistant polytetrafluoroethylene heat shrinkable tube characterized by, Including to be covered piece (1), heat shrink tube (2), arc flattening piece (3), threaded sleeve (4), threaded rod (5), operating handle (6), to be covered piece (1) is installed in the inner diameter of heat shrink tube (2), the outer diameter of heat shrink tube (2) is butt joint with the inner groove of arc flattening piece (3), the threaded sleeve (4) welded at the top center position of arc flattening piece (3) is installed by threaded rod (5) and operating handle (6) with thread tightening.

2. The high temperature resistant polytetrafluoroethylene heat shrinkable tube according to claim 1, characterized in that: The arc flattening piece (3) is composed of an arc sleeve (7), an arc rubber pad (8), a side pressing roller (9) and a top pressing rod (10), the arc rubber pad (8) is pasted on both ends of the bottom of the arc sleeve (7), the side pressing roller (9) is positioned and installed on both sides of the vertical end surface of the inner groove of the arc sleeve (7), and the top pressing rod (10) is positioned and installed at the slotted position of the arc top of the inner groove of the arc sleeve (7).

3. The high temperature resistant PTFE heat shrinkable tube according to claim 2, characterized in that: The top pressing rod (10) is composed of a horizontal plate (11), an inner triangular supporting strip (12) and a rubber scraping strip (13), the inner triangular supporting strip (12) is positioned and welded on the axis of the horizontal plate (11), and the rubber scraping strip (13) is fixedly installed on the outer end surface of the inner triangular supporting strip (12) by glue.

4. The high temperature resistant PTFE heat shrinkable tube according to claim 2, characterized in that: The side pressing roller (9) is composed of a mounting frame (14), a pressing roller (15) and a supporting spring group (16), the pressing roller (15) is positioned and installed on the mounting frame (14) through a rotating shaft, and the supporting spring group (16) is positioned and installed on the outer frame body of the mounting frame (14).

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