CN218974647U

CN218974647U - Flame-retardant waterproof PE sheath material layer

Info

Publication number: CN218974647U
Application number: CN202223362682.XU
Authority: CN
Inventors: 曹华; 杨震; 朱琴
Original assignee: Jiangsu Dongfang Cable Material Co ltd
Current assignee: Jiangsu Dongfang Cable Material Co ltd
Priority date: 2022-12-15
Filing date: 2022-12-15
Publication date: 2023-05-05
Anticipated expiration: 2032-12-15

Abstract

The utility model belongs to the technical field of optical cable PE sheaths, and particularly relates to a flame-retardant waterproof PE sheath layer which comprises an optical cable, wherein a polyvinyl chloride layer is wrapped outside the optical cable, a first flame-retardant layer is fixed outside the polyvinyl chloride layer, a tearing-resistant protection layer is fixed outside the first flame-retardant layer, and a waterproof protection layer is fixed outside the tearing-resistant protection layer. According to the utility model, the optical cable, the polyvinyl chloride layer, the first flame-retardant layer, the anti-tearing protective layer, the waterproof protective layer, the second flame-retardant layer and the polyethylene layer are arranged, and in the process of using the optical cable sheath, the arranged first flame-retardant layer and the second flame-retardant layer are utilized, so that the sheath has fireproof and flame-retardant performances, and when the sheath encounters open fire, the spontaneous combustion phenomenon can not occur, thereby avoiding the influence on the normal use of the optical cable, and the integral tensile strength and the waterproof performance of the sheath are enhanced by utilizing the arranged anti-tearing protective layer and the waterproof protective layer.

Description

Flame-retardant waterproof PE sheath material layer

Technical Field

The utility model relates to the technical field of PE sheaths of optical cables, in particular to a flame-retardant waterproof PE sheath material layer.

Background

The optical cable is manufactured to meet the performance specifications of optics, machinery or environment, and is a communication cable component which uses one or more optical fibers arranged in a coating sheath as a transmission medium and can be used singly or in groups, and mainly comprises an optical fiber, a plastic protective sleeve and a plastic sheath, wherein the sheath used for the optical cable is generally made of PE materials, but the PE sheath for the target optical cable is not provided with a material layer capable of preventing fire and retarding flame, and when the optical cable is used in a place where fire occurs, the optical cable is extremely easy to damage to the optical cable when the optical cable is burnt with open fire, so that the normal transmission and use of optical cable signals are affected, and therefore, the flame-retardant waterproof PE sheath layer is proposed to solve the problems.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides a flame-retardant waterproof PE sheath layer, which solves the problems in the background art.

(II) technical scheme

The utility model adopts the following technical scheme for realizing the purposes:

the utility model provides a fire-retardant waterproof PE sheath layer, includes the optical cable, the outside parcel of optical cable has the polyvinyl chloride layer, the outside on polyvinyl chloride layer is fixed with first fire-retardant layer, the outside on first fire-retardant layer is fixed with the anti-tear protective layer, the outside on anti-tear protective layer is fixed with waterproof protective layer, the outside on waterproof protective layer is fixed with the fire-retardant layer of second, the outside on fire-retardant layer of second is fixed with the polyethylene layer.

Further, the first flame-retardant layer is a polycarbonate film layer, and the second flame-retardant layer is an aramid fiber material layer.

Further, the tearing-proof protective layer is a nylon wire material layer.

Further, the waterproof protective layer is a neoprene layer.

Furthermore, wear-resistant rings are fixed on the outer surface of the polyethylene layer in an equidistant array mode, and the wear-resistant rings are made of polyoxy polyoxymethylene.

(III) beneficial effects

Compared with the prior art, the utility model provides a flame-retardant waterproof PE sheath material layer, which has the following beneficial effects:

according to the utility model, the optical cable, the polyvinyl chloride layer, the first flame-retardant layer, the anti-tearing protective layer, the waterproof protective layer, the second flame-retardant layer and the polyethylene layer are arranged, and in the process of using the optical cable sheath, the arranged first flame-retardant layer and the second flame-retardant layer are utilized, so that the sheath has fireproof and flame-retardant performances, and when the sheath encounters open fire, the spontaneous combustion phenomenon can not occur, thereby avoiding the influence on the normal use of the optical cable, and the whole tensile strength and the waterproof performance of the sheath are enhanced by utilizing the arranged anti-tearing protective layer and the waterproof protective layer.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

fig. 2 is a cross-sectional view of the overall structure of the present utility model.

In the figure: 1. an optical cable; 2. a polyvinyl chloride layer; 3. a first flame retardant layer; 4. a tear-resistant protective layer; 5. a waterproof protective layer; 6. a second flame retardant layer; 7. a polyethylene layer; 8. wear-resistant ring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples

As shown in fig. 1 and fig. 2, the flame-retardant waterproof PE sheath layer provided by an embodiment of the present utility model includes an optical cable 1, a polyvinyl chloride layer 2 is wrapped on the outer portion of the optical cable 1, a first flame-retardant layer 3 is fixed on the outer portion of the polyvinyl chloride layer 2, a tear-proof protection layer 4 is fixed on the outer portion of the first flame-retardant layer 3, a waterproof protection layer 5 is fixed on the outer portion of the tear-proof protection layer 4, a second flame-retardant layer 6 is fixed on the outer portion of the waterproof protection layer 5, and a polyethylene layer 7 is fixed on the outer portion of the second flame-retardant layer 6.

As shown in fig. 2, in some embodiments, the first flame retardant layer 3 is a polycarbonate film layer, and the second flame retardant layer 6 is an aramid fiber material layer, so that the polycarbonate film has the properties of ultraviolet light resistance, excellent toughness, high strength, difficult tearing and breakage, excellent flame retardance, insulation, high temperature resistance, ageing resistance and the like, and the aramid fiber has the effects of fire prevention and flame retardance on the whole sheath.

As shown in fig. 2, in some embodiments, the tear-proof protective layer 4 is a nylon filament material layer, and the nylon filament has the advantages of high softening point, heat resistance, low friction coefficient, wear resistance, stretching resistance, weak acid resistance, alkali resistance, good general solvent resistance and weather resistance, and the like, so that the overall stretching resistance of the sheath can be enhanced.

As shown in fig. 2, in some embodiments, the waterproof protective layer 5 is a neoprene layer, and is a waterproof film layer made from neoprene, which has the characteristics of high tensile strength, high elasticity and elongation, good weather resistance, and the like, so that the overall waterproof performance of the sheath can be enhanced.

As shown in fig. 2, in some embodiments, wear-resistant rings 8 are fixed on the outer surface of the polyethylene layer 7 in an equidistant array, and the wear-resistant rings 8 are made of polyoxy-polyoxymethylene, so that the wear-resistant performance of the sheath surface can be enhanced due to the excellent performances of fatigue resistance, creep resistance, wear resistance, heat resistance and the like of the polyoxy-polyoxymethylene.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a fire-retardant waterproof PE sheath layer, includes optical cable (1), its characterized in that: the outside parcel of optical cable line (1) has polyvinyl chloride layer (2), the outside of polyvinyl chloride layer (2) is fixed with first fire-retardant layer (3), the outside of first fire-retardant layer (3) is fixed with anti-tear protective layer (4), the outside of anti-tear protective layer (4) is fixed with waterproof protective layer (5), the outside of waterproof protective layer (5) is fixed with second fire-retardant layer (6), the outside of second fire-retardant layer (6) is fixed with polyethylene layer (7).

2. The flame retardant and waterproof PE sheath layer according to claim 1, characterized in that: the first flame-retardant layer (3) is a polycarbonate film layer, and the second flame-retardant layer (6) is an aramid fiber material layer.

3. The flame retardant and waterproof PE sheath layer according to claim 1, characterized in that: the anti-tearing protective layer (4) is a nylon wire material layer.

4. The flame retardant and waterproof PE sheath layer according to claim 1, characterized in that: the waterproof protective layer (5) is a chloroprene rubber layer.

5. The flame retardant and waterproof PE sheath layer according to claim 1, characterized in that: the wear-resistant rings (8) are fixed on the outer surface of the polyethylene layer (7) in an equidistant array, and the wear-resistant rings (8) are made of polyoxy polyoxymethylene.