Anti-aging heat-shrinkable sleeve

Abstract

The utility model discloses an anti-aging heat-shrinkable sleeve, which comprises an inner layer, and a hot melt adhesive layer, a supporting layer and an outer layer which are sequentially arranged on the outer surface wall of the inner layer, and a plurality of uniformly distributed bonding mechanisms are arranged in the inner layer; the bonding mechanism comprises an extrusion film arranged in the inner layer and a filling cavity arranged between the extrusion film and the inner layer; according to the utility model, through the arrangement of the extrusion film and the supporting ribs, when the sleeve is heated and shrunk, extrusion is generated between the inner layer and the cable, and an adhesive can flow out to fill a gap, thereby ensuring tight bonding between the inner layer and the cable, forming a good protection and sealing layer, preventing external substances such as moisture, dust and the like from invading, improving the safety and reliability of the cable, and prolonging the service life of the cable. And due to the use of the supporting ribs, the overall structural stability of the sleeve is not affected, a good shape can be kept, and the integrity and stability of a connecting part are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of heat shrinkable sleeves, in particular to an anti-aging heat shrinkable sleeve. Background Art

[0002] Heat shrink tubing is a type of tubing used to protect the connection parts of wires, cables or other equipment. It shrinks under the action of heat and wraps tightly around the connection parts to form a good sealing and protective effect.

[0003] Upon investigation, it was found that the Chinese utility model patent with publication number CN216435510U discloses an anti-aging and high-temperature resistant silicone rubber heat shrink tubing, comprising a silicone rubber layer, an outer wall of one side of the silicone rubber layer is provided with a flame retardant layer, and a heat insulation layer is provided on the side of the flame retardant layer away from the silicone rubber layer.

[0004] The above-mentioned heat shrink tubing can encapsulate the metal ions into the chelating agent through the strong binding effect between the chelating agent molecules and the metal ions, and turn them into stable compounds with larger molecular weight, thereby preventing the metal ions from taking effect, thereby protecting the silicone rubber layer and reducing the oxidation reaction; however, after the heat shrink tubing is used on the cable for a long time, it may become fluffy, and gaps may appear between the cable. In severe cases, it may shift, making it unstable to use.

[0005] Therefore, it is necessary to design an anti-aging heat shrink tubing to solve the above problems. Utility Model Content

[0006] The utility model aims to solve the shortcomings in the prior art and provides an anti-aging heat shrinkable sleeve.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] An anti-aging heat shrinkable sleeve comprises an inner layer and a hot melt adhesive layer, a support layer and an outer layer which are sequentially arranged on the outer surface wall of the inner layer, wherein a plurality of evenly distributed bonding mechanisms are arranged in the inner layer;

[0009] The bonding mechanism includes an extruded film disposed within the inner layer and a filled cavity disposed between the extruded film and the inner layer.

[0010] Preferably, the filling cavity is filled with adhesive.

[0011] Preferably, the inner layer is made of polyethylene material, and the supporting layer is made of polyester material.

[0012] Preferably, a plurality of supporting ribs distributed in a ring array are arranged in the supporting layer.

[0013] Preferably, the outer surface wall of the outer layer is provided with a wear-resistant coating.

[0014] The utility model has the following beneficial effects:

[0015] By providing the extrusion film and the supporting ribs, when the sleeve is heated and shrunk, extrusion occurs between the inner layer and the cable, and the adhesive can flow out to fill the gap, ensuring that the inner layer and the cable are tightly bonded, forming a good protection and sealing layer, preventing the intrusion of external substances such as moisture and dust, and improving the safety and reliability of the cable. In addition, due to the use of the supporting ribs, the overall structural stability of the sleeve is not affected, and it can maintain a good shape, ensuring the integrity and stability of the connecting part. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of an anti-aging heat shrink tubing proposed by the utility model;

[0017] Figure 2 for Figure 1 A schematic diagram of the structure at A;

[0018] Figure 3 This is a schematic diagram of the overall front view and cross-sectional structure of an anti-aging heat shrinkable sleeve proposed by the utility model;

[0019] Figure 4 for Figure 3 Schematic diagram of the structure at B;

[0020] In the figure: 1, inner layer; 2, hot melt adhesive layer; 3, support layer; 31, support ribs; 4, outer layer; 5, bonding mechanism; 51, extrusion film; 52, filling cavity. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Reference Figure 1-4 , an anti-aging heat shrinkable sleeve, comprising an inner layer 1 and a hot melt adhesive layer 2, a support layer 3 and an outer layer 4 sequentially arranged on the outer wall of the inner layer 1, wherein a plurality of uniformly distributed bonding mechanisms 5 are arranged in the inner layer 1;

[0023] The bonding mechanism 5 includes an extrusion film 51 disposed in the inner layer 1 and a filling cavity 52 disposed between the extrusion film 51 and the inner layer 1. By using the bonding mechanism 5, the inner layer 1 and the cable can be evenly filled with adhesive, ensuring that the sleeve can be stably connected to the cable when deformed, and is more secure to use.

[0024] Reference Figure 4The filling cavity 52 is filled with adhesive. The connection between the inner layer 1 of adhesive and the cable is more firmly secured.

[0025] Reference Figure 2 The inner layer 1 is made of polyethylene material, and the supporting layer 3 is made of polyester material. The inner layer 1 can provide insulation and protection to prevent the wires or cables from contacting the external environment, and prevent problems such as short circuit or leakage. The supporting layer 3 provides structural support and mechanical strength for the sleeve to ensure that the sleeve maintains a stable shape during heating and shrinking.

[0026] Reference Figure 2 A plurality of support ribs 31 distributed in a circular array are arranged in the support layer 3. The use of the support ribs 31 can improve the overall tensile strength of the casing and improve the protective effect of the casing.

[0027] Reference Figure 1 The outer wall of the outer layer 4 is provided with a wear-resistant coating. The wear-resistant coating can reduce the damage of the outer layer 4 and extend the service life of the outer layer 4.

[0028] The specific working principle of the utility model is as follows:

[0029] When in use, the inner layer 1 can be put on the outer wall of the cable, and then the entire sleeve can be heated. When the sleeve is heated, it can shrink. At this time, the spacing between the several support ribs 31 will change, but it will not affect the overall shrinkage of the sleeve. During the shrinkage of the sleeve, the inner layer 1 can be squeezed with the cable. At this time, the extrusion film 51 can be compressed, and the adhesive in the filling cavity 52 can flow out and be located between the inner layer 1 and the cable, ensuring that the inner layer 1 and the cable can be bonded to avoid displacement and gaps.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An anti-aging heat shrink tubing, comprising an inner layer (1) and a hot melt adhesive layer (2), a support layer (3) and an outer layer (4) sequentially arranged on the outer wall of the inner layer (1), characterized in that: The inner layer (1) is provided with a plurality of evenly distributed bonding mechanisms (5); The bonding mechanism (5) comprises an extrusion film (51) arranged in the inner layer (1) and a filling cavity (52) arranged between the extrusion film (51) and the inner layer (1).

2. The anti-aging heat shrink tubing according to claim 1, characterized in that: The filling cavity (52) is filled with adhesive.

3. The anti-aging heat shrink tubing according to claim 1, characterized in that: The inner layer (1) is made of polyethylene material, and the supporting layer (3) is made of polyester material.

4. The anti-aging heat shrink tubing according to claim 1, characterized in that: A plurality of support ribs (31) distributed in a ring array are arranged in the support layer (3).

5. The anti-aging heat shrink tubing according to claim 1, characterized in that: The outer surface wall of the outer layer (4) is provided with a wear-resistant coating.

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