CN217279060U

CN217279060U - Small-bending-radius repeated-bending-resistant optical cable

Info

Publication number: CN217279060U
Application number: CN202221318916.8U
Authority: CN
Inventors: 朱卫华; 王新新; 魏成东; 陈雪康; 唐毅; 杨晓
Original assignee: Sichuan Tianfu Jiangdong Technology Co ltd
Current assignee: Sichuan Tianfu Jiangdong Technology Co ltd
Priority date: 2022-05-30
Filing date: 2022-05-30
Publication date: 2022-08-23
Anticipated expiration: 2032-05-30

Abstract

The utility model discloses a little bend radius is able to bear or endure to relapse crooked optical cable belongs to optical cable technical field, and aim at provides a little bend radius is able to bear or endure to relapse crooked optical cable, solves current optical cable because of structural defect can't satisfy the user demand in special occasions such as elevator, has the problem that life is short. The optical fiber protection device comprises a flat sheath, wherein optical fibers are arranged in the flat sheath, a foamed polyurethane buffer layer covers the outer portions of the optical fibers, and reinforcing parts are arranged on two sides of each optical fiber in the flat sheath along the width direction of the flat sheath. The utility model is suitable for a little bend radius is able to bear or endure the crooked optical cable repeatedly.

Description

Small-bending-radius repeated-bending-resistant optical cable

Technical Field

The utility model belongs to the technical field of the optical cable, concretely relates to resistant crooked optical cable of relapseing of little bend radius.

Background

In special application occasions such as elevators and the like, the optical cable is required to have very good flexibility and smaller bending radius. The conventional optical cable is generally in a circular or flat structure, the design size of the optical cable in the bending direction is not minimized, the requirement cannot be met, and the effect of repeated bending of a small radius cannot be achieved, so that the service life is short, and the optical cable needs to be frequently replaced, thereby increasing the cost of a user and failing to meet the requirements of the user.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the utility model provides a resistant crooked optical cable of relapseing of little bend radius, solves current optical cable and can't satisfy the user demand at special occasions such as elevator because of structural defect, has the problem that life is short.

The utility model adopts the technical scheme as follows:

the utility model provides a resistant crooked optical cable of little bend radius, includes flat sheath, be provided with optic fibre in the flat sheath, the optic fibre outside covers there is the foaming polyurethane buffer layer, lie in optic fibre both sides in the flat sheath and install the reinforcement along flat sheath width direction.

Further, the reinforcing member is a steel wire.

Further, one or more optical fibers are disposed within the flat sheath.

Furthermore, the flat sheath is made of a low-smoke halogen-free flame retardant material.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses in, utilize the buffer layer of foaming polyurethane as optic fibre, protect optic fibre, compare ordinary polyurethane sheath and have softer, shrink little, can flatten and the characteristic that resumes, make the resistant bending property that relapses of optical cable structure more excellent, greatly improved the life of optical cable in the elevator scene.

2. The utility model discloses in, the thickness of optical cable has been optimized along the horizontal design of flat sheath width direction to the reinforcement steel wire, makes its thickness very narrow, when the optical cable will be crooked towards thickness direction, realizes the bend radius minimizing, has greatly improved the life of optical cable in the elevator scene.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and that for those skilled in the art, other relevant drawings can be obtained according to the drawings without inventive effort, wherein:

fig. 1 is a schematic structural view of the present invention;

description of the drawings: 1-flat sheath, 2-strength member, 3-optical fiber, 4-foaming polyurethane buffer layer.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.

It should be noted that: reference numerals and letters designate similar items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; mechanical connection or electrical connection can be realized; the two original pieces can be directly connected or indirectly connected through an intermediate medium, or the two original pieces can be communicated with each other. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Further, the reinforcing member is a steel wire.

Further, one or more optical fibers are disposed within the flat sheath.

The utility model discloses at the implementation in-process, utilize the foaming polyurethane as the buffer layer of optic fibre, protect optic fibre, compare ordinary polyurethane sheath and have softer, shrink little, can be flattened and the characteristic that resumes, make the resistant bending performance that relapses of optical cable structure more excellent, greatly improved the life of optical cable in the elevator scene. The design of reinforcement steel wire along flat sheath width direction horizontal row has optimized the thickness of optical cable, makes its thickness very narrow, when the optical cable will be crooked towards thickness direction, realizes the bend radius minimizing, has greatly improved the life of optical cable in the elevator scene.

Example 1

Example 2

On the basis of example 1, the reinforcement is a steel wire.

Example 3

On the basis of the above embodiment, one or more optical fibers are disposed in the flat sheath.

Example 4

On the basis of the embodiment, the flat sheath is made of a low-smoke halogen-free flame-retardant material.

The above is the embodiment of the present invention. The foregoing is the preferred embodiments of the present invention, and if they are not obviously contradictory or are not assumed to be obvious, all the preferred embodiments can be combined and used by any superposition, and the specific parameters in the embodiments are only for clearly representing the verification process of the present invention, and are not used to limit the patent protection scope of the present invention, which is still subject to the claims, and all the equivalent structural changes made by applying the contents of the specification and the drawings of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a resistant crooked optical cable of repetition of little bend radius, its characterized in that, includes flat sheath (1), be provided with optic fibre (3) in flat sheath (1), optic fibre (3) outside covers there is foaming polyurethane buffer layer (4), lie in optic fibre (3) both sides in flat sheath (1) and install reinforcement (2) along flat sheath (1) width direction.

2. A small bend radius, repeated bend resistant optical cable as claimed in claim 1, wherein said strength members (2) are steel wires.

3. A small bend radius, bend-resistant optical fiber cable as claimed in claim 1, wherein one or more optical fibers (3) are disposed within said flat sheath (1).

4. An optical cable with a small bending radius and repeated bending resistance as claimed in claim 1, characterized in that the material of the flat sheath (1) is a low-smoke halogen-free flame retardant material.