CN201181348Y

CN201181348Y - Helical self-storage type movable soft optical fibre cable

Info

Publication number: CN201181348Y
Application number: CNU200720129735XU
Authority: CN
Inventors: 张森明; 徐军; 黄俊华
Original assignee: TONGGUANG GROUP Ltd
Current assignee: TONGGUANG GROUP Ltd
Priority date: 2007-12-26
Filing date: 2007-12-26
Publication date: 2009-01-14
Anticipated expiration: 2017-12-26

Abstract

A spiral self-accommodating type portable flexible optical cable adopts optical fibers (1) as the core wire, and is composed of a PVC tightly-packaging layer (2), a tension-resist strengthening layer (3) and an outer sheathing layer (4), by which the core wire is coated; the cross section of the optical cable is in the shape of circle, rectangle or ellipse; and the finished product of the optical cable is shaped like a tension spring, that is, a hollow compressed spiral shape with higher flexibility. The optical cable is widely applicable to the portable flexible optical cables for connecting the optical communication signals between the mobile communication devices, and has the advantages of high tension resistance, high wear resistance, high flexibility, easy maintenance, long service life and higher reliability.

Description

Spiral moves flexible optical cable from the formula of accommodating

Technical field

The utility model relates to a kind of communications optical cable, particularly a kind of spiral fashion flexible flexible optical cable of movably communicating by letter, and promptly spiral moves optical cable from the formula of accommodating.

Background technology

Numerous communication facilitiess, between hand-held set and main frame, between the industrial computer and main frame that moves, existing is by the maximum moving distance design configurations with the soft direct light cable of circle structure with traditional transmission way, though also can solve signal transmission issues, but its weak point is to connect transmission signals with soft direct light cable, in actual use, when moving to ultimate range, cable is straightened substantially, when moving to minor increment, the tortuous kink on ground at random of the cable of surplus length, cable is by drawing-off repeatedly, tortuous, kink causes sheath impaired easily, and cause disconnected fine, thereby reliability is low, and serviceable life is short, the maintenance cost height.

Summary of the invention

Low in order to overcome use soft mobile direct light cable tension of tradition and wearing quality, in move using easily by the disconnected fine deficiency of damaging etc. of tortuous kink, the utility model provides a kind of spiral to move flexible optical cable from the formula of accommodating, make it strengthen tension and wearing quality, flexible freely in moving use, long service life, better reliability.

The technical scheme that its technical matters that solves the utility model adopts is: a kind of spiral moves flexible optical cable from the formula of accommodating, form by optical fiber, PVC hard-pressed bale layer, tension enhancement Layer and external sheath layer, it is characterized in that with optical fiber being heart yearn, from inside to outside coat PVC hard-pressed bale layer, tension enhancement Layer and external sheath layer successively in its periphery, its shape of cross section is circular, rectangle or ellipse, and its finished product profile is that the hollow that has better retractility like the extension spring tightens spirality; Above-mentioned optical fiber kind is single-mode fiber or multimode optical fiber, and the radical of optical fiber is single or many, fibre bundle that multifiber is formed or the fibre ribbon that is arranged in side by side; The structure of above-mentioned tension enhancement Layer is high fiber filament of terylene, polyamide fibre, polyvinyl, aramid fiber, Tynex and so on tensile strength and short fiber yarn thereof; The structure of the external sheath layer that extrudes outside the tension enhancement layer is the flame-proof abrasion-resistant oil resisting material of tygon, polypropylene, vinyl chloride, fluoroplastic and so on.

The beneficial effects of the utility model are when mobile communication equipment uses, and tension and wearing quality are strong, and be capable of expansion and contraction, easy care, long service life, better reliability.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is that xsect is the circular helical flexible optical cable of single core.

Fig. 2 is that xsect is the helical flexible optical cable of twin-core of rectangle.

Fig. 3 is that xsect is the helical flexible optical cable of oval-shaped twin-core.

Fig. 4 is that the utility model is in the helical flexible optical cable original state figure that contracts of accommodating certainly under the no external force effect.

Fig. 5 is the utility model spiral status figure when being stretched.

In Fig. 1～Fig. 3: 1. optical fiber, 2.PVC hard-pressed bale layer, 3. tension enhancement Layer, 4. external sheath layer

Embodiment

In Fig. 1～Fig. 3, a kind of spiral moves flexible optical cable from the formula of accommodating, form by optical fiber (1), PVC hard-pressed bale layer (2), tension enhancement Layer (3) and external sheath layer (4), it is characterized in that with optical fiber (1) be heart yearn, from inside to outside coat PVC hard-pressed bale layer (2), tension enhancement Layer (3) and oversheath (4) successively in its periphery, its shape of cross section is circular, rectangle or ellipse, and its finished product profile is that the hollow that has better retractility like the extension spring tightens spirality; The kind of above-mentioned optical fiber (1) is single-mode fiber or multimode optical fiber, and the radical of optical fiber is single or many, fibre bundle that multifiber is formed or the fibre ribbon of arranging side by side; The structure of above-mentioned tension enhancement Layer (3) is high fiber filament of terylene, polyamide fibre, polyvinyl, aramid fiber, Tynex and so on tensile strength and short fiber yarn thereof; The structure of the external sheath layer (4) that extrudes outside tension enhancement Layer (3) is the flame-proof abrasion-resistant oil resisting material of tygon, polypropylene, vinyl chloride, fluoroplastic and so on.

Claims

1, a kind of spiral moves flexible optical cable from the formula of accommodating, form by optical fiber (1), PVC hard-pressed bale layer (2), tension enhancement Layer (3) and external sheath layer (4), it is characterized in that with optical fiber (1) be heart yearn, from inside to outside coat PVC hard-pressed bale layer (2), tension enhancement Layer (3) and external sheath layer (4) successively in its periphery, its shape of cross section is circular, rectangle or ellipse, and its finished product profile is that the hollow that has better retractility like the extension spring tightens spirality.

2, spiral according to claim 1 moves flexible optical cable from the formula of accommodating, and the kind that it is characterized in that optical fiber (1) is single-mode fiber or multimode optical fiber, and the radical of optical fiber is single or many, fibre bundle that multifiber is formed or the fibre ribbon that is arranged in side by side.

3, spiral according to claim 1 moves flexible optical cable from the formula of accommodating, and the structure that it is characterized in that tension enhancement Layer (3) is high fiber filament of terylene, polyamide fibre, polyvinyl, aramid fiber, Tynex or other tensile strength and short fiber yarn thereof.

4, spiral according to claim 1 moves flexible optical cable from the formula of accommodating, and the structure that it is characterized in that external sheath layer (4) is tygon, polypropylene, vinyl chloride, fluoroplastic and so on flame-proof abrasion-resistant oil resisting material.