CN209879087U

CN209879087U - Circular waterproof rubber-insulated-wire optical cable

Info

Publication number: CN209879087U
Application number: CN201920422378.9U
Authority: CN
Inventors: 杨其国
Original assignee: Suzhou Source Cheng Heng Photoelectric Co Ltd
Current assignee: Suzhou Source Cheng Heng Photoelectric Co Ltd
Priority date: 2019-03-31
Filing date: 2019-03-31
Publication date: 2019-12-31
Anticipated expiration: 2029-03-31

Abstract

The utility model discloses a circular waterproof rubber-insulated-wire cable, including six optic fibre, six optic fibre contact along circumference, the inboard pressfitting of optic fibre has the strengthening member, the outside pressfitting of optic fibre has the waterproof layer, the outer wall pressfitting of waterproof layer has the protection leather sheath, it has the material that blocks water to fill between waterproof layer, optic fibre and the strengthening member, the protection leather sheath includes the high density polyethylene sheath, the inner wall pressfitting of high density polyethylene sheath has alkali-free glass fiber, alkali-free glass fiber's inner wall pressfitting has epoxy anticorrosive paint, epoxy anticorrosive paint and the outer wall pressfitting of waterproof layer. This circular waterproof rubber-insulated-wire cable can protect the optical cable through the cooperation of high density polyethylene sheath, alkali-free glass fiber and epoxy anticorrosive coating, very big reinforcing the wearability and the corrosion resistance of optical cable, can carry out effectual water proof protection to the optical cable through the cooperation of yarn, flexible ethylene geomembrane, polyurethane waterproof coating and the material that blocks water.

Description

Circular waterproof rubber-insulated-wire optical cable

Technical Field

The utility model relates to an optical cable technical field specifically is a circular waterproof rubber-insulated-wire cable.

Background

With the development of optical fiber communication technology, the FTTH in china has entered into a practical stage, and large telecom operators and network companies in various regions have carried out the construction of the FTTH network on a large scale, and rubber-insulated optical cables become the mainstream products of user introduction sections in the FTTH network with their unique flat structures and low prices.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a circular waterproof rubber-insulated-wire cable to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a circular waterproof rubber-insulated optical cable comprises six optical fibers, wherein the six optical fibers are in contact along the circumferential direction, a reinforcing member is pressed on the inner side of each optical fiber, a waterproof layer is pressed on the outer side of each optical fiber, a protective leather sheath is pressed on the outer wall of each waterproof layer, and water-blocking substances are filled among the waterproof layers, the optical fibers and the reinforcing member;

the protective leather sheath comprises a high-density polyethylene sheath, alkali-free glass fiber is pressed on the inner wall of the high-density polyethylene sheath, epoxy anticorrosive paint is pressed on the inner wall of the alkali-free glass fiber, and the epoxy anticorrosive paint is pressed on the outer wall of the waterproof layer.

Preferably, the waterproof layer comprises water-blocking yarns, the outer walls of the water-blocking yarns are pressed with flexible ethylene geomembranes, the outer walls of the flexible ethylene geomembranes are pressed with the inner walls of the protective leather sheaths, and the inner walls of the water-blocking yarns are pressed with polyurethane waterproof coatings.

Preferably, the material of the reinforcing member is reinforced plastic FRP.

Preferably, the material of the water-blocking substance is ointment.

Preferably, the polyurethane waterproof coating is a single-component environment-friendly waterproof coating for liquid construction, takes an imported polyurethane prepolymer as a basic component, and is free of additives such as tar, asphalt and the like.

Compared with the prior art, the beneficial effects of the utility model are that: this circular waterproof rubber-insulated-wire cable can protect the optical cable through the cooperation of high density polyethylene sheath, alkali-free glass fiber and epoxy anticorrosive coating, very big reinforcing the wearability and the corrosion resistance of optical cable, can carry out effectual water proof through the cooperation of yarn, flexible ethylene geomembrane, polyurethane waterproof coating and the material that blocks water, can make the optical cable use for a long time in aqueous.

Drawings

FIG. 1 is a schematic cross-sectional view of the present invention;

FIG. 2 is a schematic cross-sectional view of the protective leather sheath of the present invention;

fig. 3 is a schematic cross-sectional view of the waterproof layer of the present invention.

In the figure: 1. optical fiber, 2, reinforcing member, 3, waterproof layer, 301, water-blocking yarn, 302, flexible ethylene geomembrane, 303, polyurethane waterproof coating, 4, reinforcing member, 401, high-density polyethylene sheath, 402, alkali-free glass fiber, 403, epoxy anticorrosive coating, 5 and water-blocking substance.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a circular waterproof rubber-insulated-wire optical cable comprises six optical fibers 1, wherein the six optical fibers 1 are in contact along the circumferential direction, a reinforcing member 2 is pressed on the inner side of each optical fiber 1, a waterproof layer 3 is pressed on the outer side of each optical fiber 1, a protective leather sheath 4 is pressed on the outer wall of each waterproof layer 3, and a water-blocking substance 5 is filled among each waterproof layer 3, each optical fiber 1 and each reinforcing member 2;

the protective leather sheath 4 comprises a high-density polyethylene sheath 401, is a semitransparent shape with high crystallinity and a certain degree of non-polar surface, has good heat resistance and cold resistance, good chemical stability, higher rigidity and toughness and good mechanical strength, can protect the optical cable from being worn by external force, the inner wall of the high-density polyethylene sheath 401 is pressed with alkali-free glass fiber 402, the alkali-free glass fiber 402 is inorganic fiber, has incombustibility, high chemical resistance, large impact energy absorption, small water absorption, good heat resistance and low price, the inner wall of the alkali-free glass fiber 402 is pressed with epoxy anticorrosive paint 403, and is composed of epoxy resin and curing agent, so that the optical cable can be effectively protected from being corroded due to the influence of external environment.

As a preferred scheme, further, the waterproof layer 3 includes water-blocking yarns 301, the water-blocking yarns 301 are made of aramid fiber, the expansion speed is high, the chemical stability of gel formed by water absorption is good, the strength is high, the outer walls of the water-blocking yarns are laminated with flexible ethylene geomembranes 302, and the waterproof cable has the characteristics of low permeability coefficient, high density, uniform thickness, good flexibility, high toughness, high transparency, high elongation, good low temperature resistance and the like, and the inner walls of the water-blocking yarns 301 are laminated with polyurethane waterproof coatings 303, so that the waterproof cable can be tightly attached to the water-blocking yarns 301, and the waterproof effect of the optical cable can be effectively enhanced.

Preferably, the reinforcing member 2 is made of reinforced plastic FRP, which is non-metallic fiber, so that the optical cable has good bending resistance and strong tensile force.

Preferably, the water-blocking substance 5 is made of ointment, which can improve the water-proof performance and mechanical performance of the optical cable, and is convenient for cabling.

As a preferred scheme, further, the polyurethane waterproof coating 303 is a single-component environment-friendly waterproof coating for liquid construction, which takes an imported polyurethane prepolymer as a basic component, has no additives such as tar and asphalt, has compact film, complete waterproof layer, no cracks, no pinholes, no bubbles, small water vapor permeability coefficient, and has both waterproof function and gas barrier function.

In the description of the present invention, it is to be understood that the terms "outer wall", "inner side", "outer side", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated; also, unless expressly stated or limited otherwise, the terms "press fit" and the like are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a circular waterproof rubber-insulated-wire cable, includes six optic fibre (1), six optic fibre (1) along circumference contact, its characterized in that: a reinforcing member (2) is pressed on the inner side of the optical fiber (1), a waterproof layer (3) is pressed on the outer side of the optical fiber (1), a protective leather sheath (4) is pressed on the outer wall of the waterproof layer (3), and a water-blocking substance (5) is filled among the waterproof layer (3), the optical fiber (1) and the reinforcing member (2);

the protective leather sheath (4) comprises a high-density polyethylene sheath (401), alkali-free glass fiber (402) is pressed on the inner wall of the high-density polyethylene sheath (401), epoxy anticorrosive paint (403) is pressed on the inner wall of the alkali-free glass fiber (402), and the epoxy anticorrosive paint (403) is pressed on the outer wall of the waterproof layer (3).

2. The round waterproof covered wire optical cable according to claim 1, characterized in that: the waterproof layer (3) comprises water-blocking yarns (301), the outer walls of the water-blocking yarns are laminated with flexible ethylene geomembranes (302), the outer walls of the flexible ethylene geomembranes (302) are laminated with the inner walls of the protective leather sleeves (4), and the inner walls of the water-blocking yarns (301) are laminated with polyurethane waterproof coatings (303).

3. The round waterproof covered wire optical cable according to claim 1, characterized in that: the material of the reinforcing member (2) is reinforced plastic (FRP).

4. The round waterproof covered wire optical cable according to claim 1, characterized in that: the water-blocking substance (5) is made of ointment.

5. The round waterproof covered wire optical cable according to claim 2, characterized in that: the polyurethane waterproof coating (303) is a single-component environment-friendly waterproof coating for liquid construction, takes an imported polyurethane prepolymer as a basic component, and is free of additives such as tar, asphalt and the like.