CN214171040U

CN214171040U - Heat shrinkable sleeve

Info

Publication number: CN214171040U
Application number: CN202121832114.4U
Authority: CN
Inventors: 李定侠; 赵银俊; 陆源
Original assignee: Chengdu Changjiang Pyrocondensation Materials Co ltd
Current assignee: Chengdu Changjiang Pyrocondensation Materials Co ltd
Priority date: 2021-08-06
Filing date: 2021-08-06
Publication date: 2021-09-10
Anticipated expiration: 2031-08-06

Abstract

The utility model discloses a heat shrinkable sleeve, which comprises a heat shrinkable sleeve body; the two end parts of the thermal shrinkable sleeve body are connected in a lap joint manner; a plurality of suture holes are formed in the lap joint of the thermal shrinkable sleeve body; the two end parts of the heat shrinkable sleeve body are provided with sutures penetrating through suture holes; the heat shrinkable sleeve also comprises a waterproof sheet which is arranged on the inner side of the lap joint of the heat shrinkable sleeve body and is arranged along the direction of the suture hole; the waterproof sheet comprises a lower hot melt adhesive layer, a waterproof film and an upper hot melt adhesive layer which are sequentially connected from inside to outside; the hot melt adhesive layer is attached to the inner side of the lap joint of the heat shrinkable sleeve body. By the proposal, the utility model has the advantages of simple structure, waterproof reliable, installation are convenient, have very high practical value and spreading value in thermal shrinkable sleeve technical field.

Description

Heat shrinkable sleeve

Technical Field

The utility model belongs to the technical field of thermal shrinkable sleeve technique and specifically relates to a thermal shrinkable sleeve.

Background

The thermal contraction belt/sleeve is a special polyolefin thermal contraction belt/sleeve and has the performances of insulation, temperature resistance and the like. It is flexible and elastic, and can be widely used for insulation protection of various wire harnesses, welding spots and inductors, and rust prevention and corrosion prevention of metal tubes and rods. For example, the sealing device is used for corrosion prevention of oil and gas steel pipelines and sealing of pipeline joints such as plastic drainage pipelines, and prevents fluid from leaking from the pipeline joints to cause pollution to the surrounding environment. The wire connector is used on a wire connector, can be contracted by heating, and has the functions of insulation, protection and the like. The heat shrinkable sleeve is a heat shrinkable material, which shrinks when heated, and can be divided into a PE heat shrinkable sleeve, a PVC heat shrinkable sleeve, a PET heat shrinkable sleeve and the like according to the material.

At present, the heat shrinkable sleeve in the prior art is formed by overlapping heat shrinkable materials, and the heat shrinkable materials generally have a three-layer structure, two layers of heat shrinkable material layers and one heat sealing layer. Wherein, the heat seal layer is arranged between two layers of heat-shrinkable material layers and is connected by adopting a sewing thread. As in patent application No.: 201520851564.6, namely a heat-shrinkable round tube convenient for sewing lap joint sections; and as patent application numbers: 201520884999.0, Chinese utility model named "lapped heat-shrinkable sleeve with open groove", etc., although it has simple structure and convenient installation. However, over time, leakage problems can occur at the suture.

Therefore, it is urgently needed to provide a heat shrinkable sleeve with simple structure, water resistance, reliability and convenient installation.

SUMMERY OF THE UTILITY MODEL

To the above problem, an object of the utility model is to provide a heat shrink sleeve, the utility model discloses a technical scheme as follows:

a heat shrinkable sleeve comprises a heat shrinkable sleeve body; the two end parts of the thermal shrinkable sleeve body are connected in a lap joint manner; a plurality of suture holes are formed in the lap joint of the thermal shrinkable sleeve body; the two end parts of the heat shrinkable sleeve body are provided with sutures penetrating through suture holes; the heat shrinkable sleeve also comprises a waterproof sheet which is arranged on the inner side of the lap joint of the heat shrinkable sleeve body and is arranged along the direction of the suture hole; the waterproof sheet comprises a lower hot melt adhesive layer, a waterproof film and an upper hot melt adhesive layer which are sequentially connected from inside to outside; the hot melt adhesive layer is attached to the inner side of the lap joint of the heat shrinkable sleeve body.

Further, the lower hot melt adhesive layer, the waterproof membrane and the upper hot melt adhesive layer are connected in a hot melt fit mode.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model is skillfully provided with the waterproof sheet, and the waterproof sheet comprises a lower hot melt adhesive layer, a waterproof film and an upper hot melt adhesive layer which are connected in sequence from inside to outside; the upper hot melt adhesive layer can be reliably connected with the inner side of the heat shrinkable sleeve body in a hot melt manner; and the lower hot melt adhesive layer is reliably connected with the quilt cover. The utility model discloses a set up the water proof membrane, play the waterproof protection of sewing up, concatenation department. To sum up, the utility model has the advantages of simple structure, waterproof reliable, installation are convenient, have very high practical value and spreading value in thermal shrinkable sleeve technical field.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as a limitation of the scope of protection, and for those skilled in the art, other related drawings may be obtained from these drawings without inventive effort.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic sectional view of the waterproof sheet of the present invention.

In the drawings, the names of the parts corresponding to the reference numerals are as follows:

1. a heat shrinkable sleeve body; 2. a suture hole; 3. a waterproof sheet; 31. a lower hot melt adhesive layer; 32. a water-resistant film; 33. and (6) an upper hot melt adhesive layer.

Detailed Description

To make the objectives, technical solutions and advantages of the present application more clear, the present invention will be further described with reference to the accompanying drawings and examples, and embodiments of the present invention include, but are not limited to, the following examples. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Example (b):

as shown in fig. 1 to 2, the present embodiment provides a heat shrinkable sleeve. First, in the present embodiment, the terms of orientation such as "bottom", "top", "peripheral edge", "center", and the like are explained based on the drawings.

In the embodiment, the heat shrinkable sleeve comprises a heat shrinkable sleeve body 1 and a waterproof sheet 3. Wherein, the two end parts of the thermal shrinkable sleeve body 1 are connected in a lap joint manner; a plurality of suture holes 2 are formed in the lap joint of the thermal shrinkable sleeve body 1; the two ends of the heat shrinkable sleeve body 1 are provided with sutures penetrating through the suture holes 2. The waterproof sheet 3 of the present embodiment is provided inside the lap joint of the heat shrinkable sleeve body 1 and laid along the direction of the suture hole 2. The waterproof sheet 3 comprises a lower hot melt adhesive layer 31, a waterproof film 32 and an upper hot melt adhesive layer 33 which are sequentially arranged from inside to outside and are connected by hot melt adhesion; the hot melt adhesive layer 33 is attached to the inner side of the lap joint of the heat shrinkable sleeve body 1. In this embodiment, adopt the hot melt to realize that thermal shrinkable sleeve body 1 and waterproof piece 3 are connected, its installation is convenient, waterproof reliable.

The above-mentioned embodiments are merely preferred embodiments of the present invention, and are not limitations on the protection scope of the present invention, but all the changes made by adopting the design principle of the present invention and performing non-creative work on this basis shall fall within the protection scope of the present invention.

Claims

1. A heat shrinkable sleeve comprises a heat shrinkable sleeve body (1); the two end parts of the thermal shrinkable sleeve body (1) are connected in a lap joint manner; a plurality of suture holes (2) are formed in the lap joint of the thermal shrinkable sleeve body (1); the two end parts of the heat shrinkable sleeve body (1) are provided with suture lines penetrating through the suture line holes (2); the heat-shrinkable sleeve is characterized by also comprising a waterproof sheet (3) which is arranged on the inner side of the lap joint of the heat-shrinkable sleeve body (1) and is distributed along the direction of the suture hole (2); the waterproof sheet (3) comprises a lower hot melt adhesive layer (31), a waterproof film (32) and an upper hot melt adhesive layer (33) which are sequentially connected from inside to outside; the hot melt adhesive layer (33) is attached to the inner side of the lap joint of the heat shrinkable sleeve body (1).

2. A heat-shrinkable sleeve according to claim 1, wherein said lower layer (31), said waterproofing membrane (32) and said upper layer (33) are joined by hot-melt adhesion.