CN217655320U

CN217655320U - Retractable optical cable for underwater exploration

Info

Publication number: CN217655320U
Application number: CN202123195201.6U
Authority: CN
Inventors: 刘建
Original assignee: Nanjing Wasin Fujikura Optical Communication Ltd
Current assignee: Nanjing Wasin Fujikura Optical Communication Ltd
Priority date: 2021-12-20
Filing date: 2021-12-20
Publication date: 2022-10-25
Anticipated expiration: 2031-12-20

Abstract

The utility model relates to a submarine detection is with retractable optical cable, include: the cable comprises star-shaped framework grooves, PBT (polybutylene terephthalate) sleeves, filling yarns, tightly-packed optical fibers, water-blocking powder, an FRP (fiber reinforced plastic) belt, aramid fibers, a PE (polyethylene) outer sheath, a twisted copper conductor and a twisted copper conductor outer sheath; the PBT sleeve is embedded in the star-shaped framework groove, the space between the star-shaped framework groove and the PBT sleeve is filled with filling yarns, the tightly-packed optical fibers are arranged inside the PBT sleeve, the space between the tightly-packed optical fibers and the PBT sleeve is filled with water-blocking powder, the FRP belt is wrapped on the star-shaped framework groove and the outer layer of the PBT sleeve, the aramid fibers are wrapped on the outer layer of the FRP belt, the PE outer sheath is wrapped on the outer layer of the aramid fibers, the PE outer sheath is wrapped on the outer layer of the twisted copper conductor outer sheath, and the twisted copper conductor outer sheath is wrapped on the outer layer of the twisted copper conductor. The utility model discloses can strengthen tensile strength, anti side pressure intensity and the water-blocking nature of optical cable, still reduce the density of optical cable.

Description

Retractable optical cable for underwater exploration

Technical Field

The utility model relates to an optical cable field specifically is a submarine detection is with retractable optical cable.

Background

With the rapid development of communication technology, the application of optical fiber communication in various occasions is more and more extensive. Under some harsh and severe environments, the optical cable needs to be repeatedly wound and unwound to bear large enough tensile load and lateral pressure between optical cable layers, and the tensile resistance and the lateral pressure resistance of the optical cable directly influence the service life of the optical cable. And the common optical cable can not meet the requirement, and the optical cable structure is damaged after repeated retraction.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a submarine detection is with retractable optical cable technique to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: a retractable optical cable for underwater exploration, comprising: the cable comprises a star-shaped framework groove, a PBT (polybutylene terephthalate) sleeve, a filling yarn, a tightly-packed optical fiber, water-blocking powder, an FRP (fiber reinforced plastic) belt, an aramid fiber, a PE (polyethylene) outer sheath, a twisted copper conductor and a twisted copper conductor outer sheath; the PBT sleeve is embedded in the star-shaped framework groove, the space between the star-shaped framework groove and the PBT sleeve is filled with filling yarns, the tightly-packed optical fibers are arranged inside the PBT sleeve, the space between the tightly-packed optical fibers and the PBT sleeve is filled with water-blocking powder, the FRP belt is wrapped on the star-shaped framework groove and the outer layer of the PBT sleeve, the aramid fibers are wrapped on the outer layer of the FRP belt, the PE outer sheath is wrapped on the outer layer of the aramid fibers, the PE outer sheath is wrapped on the outer layer of the twisted copper conductor outer sheath, and the twisted copper conductor outer sheath is wrapped on the outer layer of the twisted copper conductor.

Wherein, the PE oversheath is 8 style of calligraphy connections.

Compared with the prior art, the utility model discloses the beneficial effect who reaches is:

1. by adopting the water-blocking powder and the filling yarns, the weight of the optical cable can be effectively reduced, the working hours can be saved, the pollution to production lines and production places can be reduced, the environmental protection is facilitated, and meanwhile, the water-blocking effect can be achieved;

2. the FRP belt and the aramid fiber can also provide high lateral pressure resistance strength for the optical cable together with the framework grooves, the combined action of the FRP belt and the aramid fiber can provide high tensile strength and high lateral pressure resistance for the optical cable, and the FRP belt and the aramid fiber can also be used as a transverse water-blocking material for the optical cable;

3. the PE outer sheaths are connected in an 8-shaped manner, and the optical unit and the electric unit are mutually independent, so that the influence of the electromagnetic effect generated when the electric unit is electrified on the optical unit can be avoided, and the influence of heat transfer generated by heating when the electric unit is electrified on optical signal transmission can also be avoided;

4. when the ship works, the external side pressure is transmitted, buffered and decomposed through materials of all layers and acts on the cylinder of the sleeve in a concentrated manner, and the influence on the optical fiber is greatly relieved.

Drawings

FIG. 1 is a view of the overall structure of the present invention;

in FIG. 1: 1-star-shaped framework grooves; 2-PBT sleeve; 3-a filling yarn; 4-tightly wrapping the optical fiber; 5-water-blocking powder; 6-FRP band; 7-aramid fibers; 8-PE outer sheath; 9-twisted pair copper wire; 10-twisted copper wire outer sheath.

Detailed Description

In order to understand the features and technical contents of the present invention in more detail, the following description is given in conjunction with the accompanying drawings, which are only used for reference and not for limiting the present invention.

Referring to fig. 1, a retractable optical cable for underwater exploration includes: the cable comprises a star-shaped framework groove 1, a PBT sleeve 2, a filling yarn 3, a tightly wrapped optical fiber 4, water-blocking powder 5, an FRP belt 6, aramid fibers 7, a PE outer sheath 8, a twisted copper conductor 9 and a twisted copper conductor outer sheath 10.

The PBT sleeve 2 is embedded in the star-shaped framework groove 1, longitudinally wrapped with the FRP belt 6 and then wrapped with the aramid fiber 7 on the outer layer.

The optical cable is characterized in that the space between the star-shaped framework groove 1 and the PBT sleeve 2 is filled with the filling yarn 3, the tightly-packed optical fiber 4 is arranged inside the PBT sleeve 2, the space between the tightly-packed optical fiber 4 and the PBT sleeve 2 is filled with the water-blocking powder 5, and by adopting the water-blocking powder 5 and the filling yarn 3, the optical cable can effectively reduce the weight of the optical cable, save the working hours, reduce the pollution to a production line and a production place, is beneficial to environmental protection, and can play a role of water blocking.

The FRP belt 6 is wrapped on the star-shaped framework groove 1 and the PBT sleeve 2, the aramid fiber 7 is wrapped on the FRP belt 6, the PE outer sheath 8 is wrapped on the aramid fiber 7, the aramid fiber 7 is embedded in the framework groove through the sleeve, the aramid fiber 7 is wrapped on the outer layer after the FRP belt 6 is longitudinally wrapped, the three jointly act as an optical cable to bring high tensile strength and high lateral pressure resistance, and the FRP belt 6 and the aramid fiber 7 can also be used as a transverse water blocking material of the optical cable.

The PE outer sheath 8 wraps the outer layer of the twisted copper wire outer sheath 10, and the twisted copper wire outer sheath 10 wraps the outer layer of the twisted copper wire 9.

The PE outer sheath 8 is connected in an 8-shaped mode, the optical unit and the electric unit are mutually independent, the influence of the electromagnetic effect generated when the electric unit is electrified on the optical unit can be avoided, and the influence of heat transfer generated when the electric unit is electrified on optical signal transmission can also be avoided.

When the ship works, the external side pressure is transmitted, buffered and decomposed through materials of all layers and acts on the cylinder of the sleeve in a concentrated manner, and the influence on the optical fiber is greatly relieved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various 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 submarine detection is with extendible optical cable which characterized in that includes: the cable comprises star-shaped framework grooves (1), PBT (polybutylene terephthalate) sleeves (2), filling yarns (3), tightly-wrapped optical fibers (4), water-blocking powder (5), an FRP (fiber reinforced plastic) belt (6), aramid fibers (7), a PE outer sheath (8), a twisted copper conductor (9) and a twisted copper conductor outer sheath (10); the PBT sleeve is characterized in that the PBT sleeve (2) is embedded in a star-shaped framework groove (1), a space between the star-shaped framework groove (1) and the PBT sleeve (2) is filled with a filling yarn (3), a tightly-packed optical fiber (4) is arranged inside the PBT sleeve (2), a space between the tightly-packed optical fiber (4) and the PBT sleeve (2) is filled with a water blocking powder (5), the FRP belt (6) is wrapped on the star-shaped framework groove (1) and the outer layer of the PBT sleeve (2), the aramid fiber (7) is wrapped on the outer layer of the FRP belt (6), the PE outer sheath (8) is wrapped on the outer layer of the aramid fiber (7), the PE outer sheath (8) is wrapped on the outer layer of a twisted copper conductor outer sheath (10), and the twisted copper conductor outer sheath (10) is wrapped on the outer layer of a twisted copper conductor (9).

2. The retractable optical cable for underwater exploration according to claim 1, wherein: the PE outer sheaths (8) are connected in an 8-shaped manner.