Heat shrink tube with small penetration resistance
By introducing the design of a traction tube and an elastic insulation layer into the heat shrink tube, the problem of high penetration resistance of the heat shrink tube is solved, and the effects of low resistance penetration and insulation protection are achieved.
Patent Information
- Application Number
- CN202422856756.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-11-22
AI Technical Summary
The existing heat shrink tubing has a large resistance during the penetration process, which makes it difficult to penetrate the tubing.
A structure including a heat shrinkable tube body and a traction tube was designed. The inner wall of the traction tube has a strong adhesive layer and a guide part. The traction tube is driven to slide inside the heat shrinkable tube body by a traction rope. The elastic insulation layer and reinforcing ribs are combined to reduce the penetration resistance.
It reduces the difficulty of cables penetrating heat shrink tubes, improves operational efficiency, and provides insulation protection through the elastic insulation layer.
Smart Images
Figure CN223428088U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to heat shrink tube technical field, and specifically relates to a heat shrink tube with small penetration resistance. BACKGROUND
[0002] Heat shrink tube is a special polyolefin material heat shrink sleeve, also known as AVA material, outer layer adopts high-quality soft crosslinked olefin material, inner layer adopts hot melt adhesive composite processing, outer layer material has the characteristics of insulation and corrosion resistance, wear resistance, inner layer has the advantages of low melting point, waterproof sealing and high adhesion, under normal circumstances, it starts to shrink at 125 DEG C, usually uses shrinkage machine or hot air blower to make heat shrink tube shrink, and then it is coated, so as to play the functions of insulation and protection.
[0003] The heat shrink sleeve in the prior art is sleeved at the position to be fixed at both ends when used, then the heat shrink sleeve is heated, so that the heat shrink sleeve is tightly gripped on the surface of the cable, however, in the process of penetrating the heat shrink sleeve, since the inner diameter of the heat shrink sleeve is usually matched with the diameter of the cable, the resistance is large when the cable penetrates the sleeve, and large air pressure is needed, so that the pipe penetrating is troublesome. UTILITY MODEL CONTENTS
[0004] The utility model discloses a heat shrink tube with small penetration resistance, which solves the problems in the background art.
[0005] To achieve the above object, the utility model provides the following technical scheme: a heat shrink tube with small penetration resistance, comprising a heat shrink tube body and a traction pipe, the traction pipe is slidably inserted into the heat shrink tube body, a strong adhesive layer is embedded on one end of the inner wall of the traction pipe close to the inlet of the heat shrink tube body, a guide part is arranged on the end of the traction pipe away from the inlet of the heat shrink tube body, the diameter of the guide part gradually decreases towards the outlet of the heat shrink tube body, a traction rope is fixedly connected to the end of the guide part, and the traction rope penetrates the outlet end of the heat shrink tube body.
[0006] As a preferred embodiment, the surface of the strong adhesive layer is covered with a release film.
[0007] As a preferred embodiment, the inner wall of the heat shrink tube body is fixedly connected with an elastic insulation layer.
[0008] As a preferred embodiment, the inner wall of the elastic insulation layer is provided with a polytetrafluoroethylene layer.
[0009] As a preferred embodiment, the outer surface of the heat shrink tube body is fixedly connected with a plurality of annularly distributed reinforcing ribs.
[0010] As a preferred embodiment, the outer surface of the heat shrink tube body is provided with an anti-skid layer.
[0011] Compared with the prior art, the utility model has the beneficial effects that:
[0012] The heat shrink tube with small penetration resistance, through the setting of the traction tube, when threading, the one end of the cable can be inserted into the traction tube first, then the inlet end of the heat shrink tube body is extruded, the end of the cable is adhered in the traction tube by the strong adhesive layer, then the traction rope is only pulled, the traction rope drives the traction tube to slide in the heat shrink tube body, the traction rope drives the cable to move towards the outlet end of the heat shrink tube body, so that the cable can be penetrated from the heat shrink tube body, the penetration difficulty is reduced, and the trouble is reduced.
[0013] The heat shrink tube with small penetration resistance, through the setting of the elastic insulation layer, can play the insulation role, and when the traction tube slides in the heat shrink tube body, the elastic insulation layer can be extruded, the inner diameter of the heat shrink tube body is temporarily expanded, the sliding of the traction tube is facilitated, and when the traction tube passes, the elastic insulation layer rebounds automatically, and the heat shrink tube body tightly wraps the cable. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is the whole structure schematic view of the utility model;
[0015] Figure 2 It is the cross section structure schematic view of the utility model;
[0016] Figure 3 It is the whole structure schematic view of the utility model Figure 2 It is the structure enlarged view of A place in the utility model.
[0017] In the drawing: 1, heat shrink tube body; 11, elastic insulation layer; 12, polytetrafluoroethylene layer; 13, reinforcing rib; 14, antiskid layer; 2, traction tube; 21, strong adhesive layer; 22, guide portion; 23, traction rope; 24, release film. DETAILED DESCRIPTION
[0018] The utility model will be further described below in combination with examples.
[0019] The following examples are used to illustrate the utility model, but can not be used to limit the protection scope of the utility model. The conditions in the examples can be further adjusted according to specific conditions, and the simple improvement of the method of the utility model under the concept of the utility model belongs to the range of the utility model required protection.
[0020] Please refer to Figure 1-3The end portion of the guide portion 22 is fixedly connected to a pulling rope 23, and the pulling rope 23 passes through the outlet end of the heat shrinkable tube 1.
[0021] Among them, the surface of the strong adhesive layer 21 is covered with a release film 24. Through the setting of the release film 24, when not in use, the release film 24 covers the strong adhesive layer 21 and can protect the strong adhesive layer 21. When it needs to be used, the release film 24 can be peeled off to expose the strong adhesive layer 21.
[0022] Reference Figure 1 and Figure 2 The inner wall of the heat shrinkable tube 1 is fixedly connected with an elastic insulating layer 11. The setting of the elastic insulating layer 11 can play an insulating role, and when the traction tube 2 slides in the heat shrinkable tube 1, the elastic insulating layer 11 can be squeezed, so that the inner diameter of the heat shrinkable tube 1 is temporarily expanded, which is convenient for the sliding of the traction tube 2. When the traction tube 2 passes, the elastic insulating layer 11 will automatically rebound, so that the heat shrinkable tube 1 tightly wraps the cable. The inner wall of the elastic insulating layer 11 is provided with a polytetrafluoroethylene layer 12. The setting of the polytetrafluoroethylene layer 12 can improve the smoothness of the inner wall of the elastic insulating layer 11 and reduce the resistance encountered by the traction tube 2 when sliding. The outer surface of the heat shrinkable tube 1 is fixedly connected with a number of annularly distributed reinforcing ribs 13. The setting of the reinforcing ribs 13 can strengthen the heat shrinkable tube 1 and improve the bending resistance and toughness of the heat shrinkable tube 1. The outer surface of the heat shrinkable tube 1 is provided with an anti-slip layer 14. The setting of the anti-slip layer 14 can improve the anti-slip effect of the surface of the heat shrinkable tube 1
[0023] The working principle and use process of the utility model are as follows: firstly, through the setting of the traction pipe 2, when threading, the one end of the cable can be inserted into the traction pipe 2 first, then the inlet end of the heat shrink tube body 1 is extruded, the cable end part is adhered in the traction pipe 2 by the strong adhesive layer 21, then only the traction rope 23 needs to be pulled, the traction rope 23 drives the traction pipe 2 to slide in the heat shrink tube body 1, the traction rope 23 drives the cable to move towards the outlet end of the heat shrink tube body 1, so that the cable can be penetrated from the heat shrink tube body 1, the penetration difficulty is reduced, the trouble is reduced, through the setting of the elastic insulation layer 11, the insulation effect can be achieved, when the traction pipe 2 slides in the heat shrink tube body 1, the elastic insulation layer 11 can be extruded, the inner diameter of the heat shrink tube body 1 is temporarily expanded, the sliding of the traction pipe 2 is facilitated, when the traction pipe 2 passes, the elastic insulation layer 11 will automatically rebound again, the heat shrink tube body 1 tightly wraps the cable.
[0024] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.
Claims
1. A heat shrinkable tube with low penetration resistance, comprising a heat shrinkable tube body (1) and a traction tube (2), characterized in that: The traction tube (2) is slidably inserted into the heat shrinkable tube body (1); a strong adhesive layer (21) is embedded and connected on the end of the inner wall of the traction tube (2) close to the inlet of the heat shrinkable tube body (1); a guide portion (22) is provided at the end of the traction tube (2) away from the inlet of the heat shrinkable tube body (1); the diameter of the guide portion (22) gradually decreases toward the outlet of the heat shrinkable tube body (1); a traction rope (23) is fixedly connected to the end of the guide portion (22); and the traction rope (23) passes through the outlet end of the heat shrinkable tube body (1).
2. The heat shrinkable tube with low penetration resistance according to claim 1, characterized in that: The surface of the strong adhesive layer (21) is covered with a release film (24).
3. The heat shrink tube with low penetration resistance according to claim 1, characterized in that: An elastic insulating layer (11) is fixedly connected to the inner wall of the heat shrinkable tube body (1).
4. The heat shrinkable tube with low penetration resistance according to claim 3, characterized in that: The inner wall of the elastic insulating layer (11) is provided with a polytetrafluoroethylene layer (12).
5. The heat shrinkable tube with low penetration resistance according to claim 1, characterized in that: The outer surface of the heat shrinkable tube body (1) is fixedly connected with a plurality of annularly distributed reinforcing ribs (13).
6. The heat shrinkable tube with low penetration resistance according to claim 1, characterized in that: The outer surface of the heat shrinkable tube (1) is provided with an anti-slip layer (14).