CN215895054U

CN215895054U - Waterproof durable central beam tube type optical cable

Info

Publication number: CN215895054U
Application number: CN202122363263.7U
Authority: CN
Inventors: 杜长军; 李新华
Original assignee: Dongguan Tw Scie Co ltd
Current assignee: Dongguan Tw Scie Co ltd
Priority date: 2021-09-28
Filing date: 2021-09-28
Publication date: 2022-02-22
Anticipated expiration: 2031-09-28

Abstract

The utility model discloses a waterproof durable central beam tube type optical cable which comprises a sleeve, a first water-blocking tape, a steel tape layer, a second water-blocking tape, an outer sheath, an ultraviolet-proof coating, two steel wires and a plurality of optical fibers, wherein the first water-blocking tape is arranged on the sleeve; the sleeve is filled with fiber paste; the first water-blocking tape is coated outside the sleeve; the steel belt layer is coated outside the first water-blocking belt; the second water-blocking tape is coated outside the steel belt layer; the outer sheath is coated outside the second water-blocking tape; the ultraviolet-proof coating is coated outside the outer sheath; the two steel wires are embedded and molded and fixed in the outer sheath, and are radially and symmetrically arranged relative to the sleeve and are parallel to the axial extension of the sleeve; the optical fibers are arranged in the sleeve and embedded in the fiber paste. Set up first water-blocking tape and second water-blocking tape through the cooperation to realize dual water-blocking, effectively promote the waterproof performance of product, set up anti ultraviolet coating simultaneously, can improve product anti ultraviolet radiation performance greatly, thereby improve signal transmission quality, slow down the product ageing, prolong the life of product.

Description

Waterproof durable central beam tube type optical cable

Technical Field

The utility model relates to the technical field of optical cables, in particular to a waterproof durable central beam tube type optical cable.

Background

Optical fiber cables (optical fiber cables) are manufactured to meet optical, mechanical, or environmental performance specifications and are telecommunication cable assemblies that utilize one or more optical fibers disposed in a surrounding jacket as the transmission medium and that may be used individually or in groups. The optical cable is mainly composed of optical fibers (thin glass filaments like hair), a plastic protective sleeve and a plastic sheath, and metals such as gold, silver, copper and aluminum are not contained in the optical cable, so that the optical cable generally has no recycling value. The optical cable is a communication line which is formed by a certain number of optical fibers into a cable core in a certain mode, is externally coated with a sheath, and is also coated with an outer protective layer for realizing optical signal transmission.

The central tube type optical cable is one of the main structural forms of the existing optical cable, and generally comprises a central tube, an armor layer, a reinforcing element, a filler and a sheath. However, the central beam tube type optical cable with the structure has the disadvantages of poor waterproof performance, poor ultraviolet radiation resistance, influence on signal transmission quality, easy aging and short service life due to unreasonable structural design. Therefore, there is a need to develop a solution to the above problems.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention is directed to the defects in the prior art, and the main object of the present invention is to provide a waterproof and durable central beam tube type optical cable, which can effectively solve the problems of poor waterproof performance and poor ultraviolet radiation resistance of the existing central beam tube type optical cable.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a waterproof durable central beam tube type optical cable comprises a sleeve, a first water-blocking tape, a steel tape layer, a second water-blocking tape, an outer sheath, an ultraviolet-proof coating, two steel wires and a plurality of optical fibers; the sleeve is filled with fiber paste; the first water-blocking tape is coated outside the sleeve; the steel belt layer is coated outside the first water-blocking belt; the second water-blocking tape is coated outside the steel belt layer; the outer sheath is coated outside the second water-blocking tape; the ultraviolet-proof coating is coated outside the outer sheath; the two steel wires are embedded and molded and fixed in the outer sheath, and are radially and symmetrically arranged relative to the sleeve and are parallel to the axial extension of the sleeve; the optical fibers are arranged in the sleeve and embedded in the fiber paste.

As a preferable scheme, the first water-blocking tape and the second water-blocking tape are both semiconductor water-blocking tapes.

As a preferable scheme, the outer sheath is made of PE.

Preferably, the number of the optical fibers is 2-24.

Compared with the prior art, the utility model has obvious advantages and beneficial effects, and specifically, the technical scheme includes that:

set up first water-blocking tape and second water-blocking tape through the cooperation to realize dual water-blocking, effectively promote the waterproof performance of product, set up anti ultraviolet coating simultaneously, can improve product anti ultraviolet radiation performance greatly, thereby improve signal transmission quality, slow down the product ageing, prolong the life of product.

To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Drawings

FIG. 1 is a cross-sectional view of a preferred embodiment of the present invention.

The attached drawings indicate the following:

10. sleeve 20, first water-blocking tape

30. Steel belt layer 40 and second water-blocking tape

50. Outer sheath 60, ultraviolet protection coating

70. Steel wire 80 and optical fiber

90. And (7) fiber paste.

Detailed Description

Referring to fig. 1, there is shown a specific structure of a preferred embodiment of the present invention, which includes a sleeve 10, a first water-blocking tape 20, a steel tape layer 30, a second water-blocking tape 40, an outer sheath 50, an ultraviolet-proof coating 60, two steel wires 70 and a plurality of optical fibers 80.

The sleeve 10 is filled with a fiber paste 90; the first water-blocking tape 20 is coated outside the casing 10; the steel belt layer 30 is coated outside the first waterproof tape 20; the second water-blocking tape 40 is coated outside the steel belt layer 30; in this embodiment, the sleeve 10 is a corrugated pipe, and the first water-blocking tape 20 and the second water-blocking tape 40 are both semiconductor water-blocking tapes, and have good waterproof performance.

The outer sheath 50 is coated outside the second water blocking tape 40; the ultraviolet-proof coating 60 is coated outside the outer sheath 50; the two steel wires 70 are embedded, molded and fixed in the outer sheath 50, the two steel wires 70 are radially and symmetrically arranged relative to the sleeve 10 and are parallel to the axial extension of the sleeve 10, and enough tensile strength is ensured; the optical fibers 80 are disposed in the ferrule 10 and embedded in the fiber paste 90, and the fiber paste 90 can protect the optical fibers 80 well. In this embodiment, the outer sheath 50 is made of PE, and has a good rigidity to ultraviolet radiation performance, the outer diameter of the outer sheath 50 is 8-11mm, and 2-24 optical fibers 80 are provided.

The product can be used for outdoor overhead, pipeline laying, vertical shafts, buildings and transmission equipment (connected by data processing equipment), and has wide application range.

The design of the utility model is characterized in that: set up first water-blocking tape and second water-blocking tape through the cooperation to realize dual water-blocking, effectively promote the waterproof performance of product, set up anti ultraviolet coating simultaneously, can improve product anti ultraviolet radiation performance greatly, thereby improve signal transmission quality, slow down the product ageing, prolong the life of product.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the technical scope of the present invention.

Claims

1. The utility model provides a waterproof durable center beam tube formula optical cable which characterized in that: the cable comprises a sleeve, a first water-blocking tape, a steel tape layer, a second water-blocking tape, an outer sheath, an ultraviolet-proof coating, two steel wires and a plurality of optical fibers; the sleeve is filled with fiber paste; the first water-blocking tape is coated outside the sleeve; the steel belt layer is coated outside the first water-blocking belt; the second water-blocking tape is coated outside the steel belt layer; the outer sheath is coated outside the second water-blocking tape; the ultraviolet-proof coating is coated outside the outer sheath; the two steel wires are embedded and molded and fixed in the outer sheath, and are radially and symmetrically arranged relative to the sleeve and are parallel to the axial extension of the sleeve; the optical fibers are arranged in the sleeve and embedded in the fiber paste.

2. The waterproof durable center tube optical cable of claim 1, wherein: the first water-blocking tape and the second water-blocking tape are both semiconductor water-blocking tapes.

3. The waterproof durable center tube optical cable of claim 1, wherein: the outer sheath is made of PE.

4. The waterproof durable center tube optical cable of claim 1, wherein: the number of the optical fibers is 2-24.