CN201090850Y

CN201090850Y - Inside and outside flame-proof thermal contraction double-walled pipe without halogen

Info

Publication number: CN201090850Y
Application number: CNU2007200495387U
Authority: CN
Inventors: 吴振
Original assignee: DONGGUAN QUANTAI ELECTRIONICS Co Ltd
Current assignee: DONGGUAN QUANTAI ELECTRIONICS Co Ltd
Priority date: 2007-03-23
Filing date: 2007-03-23
Publication date: 2008-07-23
Anticipated expiration: 2017-03-23

Abstract

The utility model relates to the thermal-shrinkable pipe technical field, in particular to a non-halogen inside and outside flame retardant thermal-shrinkable double-wall pipe which adopts an inner-outer double-layer structure; an external insulation layer made of low-smoke non-halogen flame-retardant polyolefin material and an internal rubber layer made of non-halogen flame-retardant ethylene vinyl acetate copolymer (EVA) hot melt adhesive are arranged in the utility model from external to internal sequentially. The non-halogen inside and outside flame retardant thermal-shrinkable double-wall pipe has simple structure and good safety performance.

Description

The inside and outside fire-retardant thermal contraction double-walled pipe of a kind of Halogen

Technical field:

The utility model relates to the heat-shrinkable tube technical field, particularly relates to the inside and outside fire-retardant thermal contraction double-walled pipe of a kind of Halogen.

Background technique:

The heat-shrinkable tube that provides on the present domestic and international market, what generally adopt is single layer structure, and material usually adopts non-fire-retardant or Halogen flame retardant material or adopts non-fire-retardant or Halogen flame-retardant hot-melt adhesive, the Halogen flame retardant material overwhelming majority that adopts in these products is to adopt organbromine compound and antimonous oxide flame retardant material, these material environmental pollutions, produce poisonous in a large number during burning, mordant bromize hydrogen gas, also may produce carcinogenic dioxin material, antimonous oxide can produce dust pollution in process of production simultaneously, personal respiratory system is damaged, also can cause the sleeve pipe heavy metal element to exceed standard simultaneously.No matter be to adopt single layer structure or with non-fire-retardant or Halogen flame retardant material or adopt non-fire-retardant or Halogen flame-retardant hot-melt adhesive as Manufacturing material, it all exists bigger potential safety hazard in the using process of reality.

The model utility content:

The purpose of this utility model is, at last problem, by improving existing technology, provides a kind of Halogen inside and outside fire-retardant thermal contraction double-walled pipe.

For achieving the above object, the utility model adopts following technological scheme: the inside and outside fire-retardant thermal contraction double-walled pipe of a kind of Halogen, it is characterized in that, described thermal contraction double-walled pipe is made up of interior outer double-layer structure, and ecto-entad is followed successively by external insulation layer of being made by low-smoke halide-free fireproof composite polyolefine material and the inner glue layer of being made by non-halogen flame-proof ethylene-vinyl acetate copolymer (EVA) hot melt adhesive.

The invention has the beneficial effects as follows: adopted by interior outer double-layer structure and formed, ecto-entad is followed successively by external insulation layer of being made by low-smoke halide-free fireproof composite polyolefine material and the inner glue layer of being made by non-halogen flame-proof ethylene-vinyl acetate copolymer (EVA) hot melt adhesive, and the inside and outside fire-retardant thermal contraction double-walled pipe of so a kind of Halogen is simple in structure, Security good.

Description of drawings:

Below in conjunction with accompanying drawing the utility model is further described:

Fig. 1 is a part-structure schematic representation of the present utility model.

Fig. 2 is a schematic cross-section of the present utility model.

Embodiment:

See accompanying drawing 1, accompanying drawing 2, the inside and outside fire-retardant thermal contraction double-walled pipe of a kind of Halogen, it is characterized in that, described thermal contraction double-walled pipe is made up of interior outer double-layer structure, and ecto-entad is followed successively by external insulation layer of being made by low-smoke halide-free fireproof composite polyolefine material 1 and the inner glue layer of being made by non-halogen flame-proof ethylene-vinyl acetate copolymer (EVA) hot melt adhesive 2.

The utility model has adopted inside and outside double layer material to make double wall pipe, and all adopt bittern-free flame-proof material, overcome because non-fire-retardant, Halogen fire-retardant making of former heat-shrinkable tube and safety that single layer structure brought are implicit, improve the safety coefficient that thermal contraction casing tube uses greatly, met the demand of more users.

Certainly, the embodiment of the above, it is preferred embodiments of the present utility model, be not to limit the utility model practical range, so all equivalences of doing according to the described structure of the utility model claim, feature and principle change or modify, and all should be included in the utility model claim.

Claims

1. the inside and outside fire-retardant thermal contraction double-walled pipe of a Halogen, it is characterized in that, described thermal contraction double-walled pipe is made up of interior outer double-layer structure, and ecto-entad is followed successively by external insulation layer of being made by low-smoke halide-free fireproof composite polyolefine material and the inner glue layer of being made by non-halogen flame-proof ethylene-vinyl acetate copolymer EVA hot melt adhesive.