CN216772069U

CN216772069U - Double-sheath armored layer stranded optical cable

Info

Publication number: CN216772069U
Application number: CN202123194402.4U
Authority: CN
Inventors: 李秀华
Original assignee: Dongguan Minxin Optical Fiber Communication Equipment Co ltd
Current assignee: Dongguan Minxin Optical Fiber Communication Equipment Co ltd
Priority date: 2021-12-16
Filing date: 2021-12-16
Publication date: 2022-06-17
Anticipated expiration: 2031-12-16

Abstract

The utility model relates to the field of optical fiber cables, in particular to a double-sheath armored layer stranded optical cable which comprises a metal reinforcement, wherein a loose tube is arranged on the outer surface of the side end of the metal reinforcement, optical fibers are arranged on the outer surface of the inner side of the loose tube, cable sleeves are arranged on the outer surfaces of the side ends of the metal reinforcement and the loose tube, aluminum armor is arranged on the outer surface of the side end of the cable sleeve, an inner sheath is arranged on the outer surface of the side end of the aluminum armor, and a steel armor component is arranged and consists of a first steel armor tube, a second steel armor tube, a first limiting ring and a second limiting ring, so that the steel armor component is bent to a certain degree, the optical cable can be conveniently laid, the aluminum armor is arranged on the outer surface of the inner side of the inner sheath, and the steel armor component is arranged on the outer surface of the side end of the inner sheath, so that the effects of mouse bite prevention and moisture prevention of the optical fibers are better.

Description

Double-sheath armored layer stranded optical cable

Technical Field

The utility model relates to the field of optical fiber cables, in particular to a double-sheath armored layer stranded optical cable.

Background

The layer-stranded optical cable is a round cable core formed by twisting a plurality of sleeve pipes for accommodating optical fibers around a central reinforcing member; a metallic or non-metallic strength member is positioned in the center of the cable, and a loose tube containing optical fibers is arranged around the strength member; the armored optical fiber has important application in telecommunication optical fiber long-distance lines and primary and secondary trunk line transmission, namely, the armored optical fiber is coated with a protective armor outside the optical fiber and is mainly used for meeting the requirements of a client on rat bite resistance, moisture resistance and the like.

At current armor stranded optical cable in the use, because the steel armour protects the optical cable, its steel armour is whole to be the pipe form, and the bending resistance is relatively poor, leads to comparatively inconvenient laying of optical cable.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a double-sheath armored layer stranded optical cable to solve the problems in the background technology.

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

the utility model provides a two sheath armor stranded optical cable, includes the metal reinforcement, the side surface of metal reinforcement is provided with the loose tube, the inboard surface of loose tube is provided with optic fibre, the side surface of metal reinforcement and loose tube is provided with the cable cover, the side surface of cable cover is provided with the aluminium armour, the side surface of aluminium armour is provided with the inner sheath, the side surface of inner sheath is provided with steel armour subassembly, the steel armour subassembly includes first steel armour pipe, second steel armour pipe, first spacing ring and second spacing ring, the side surface of steel armour subassembly is provided with first oversheath, the side surface of first oversheath is provided with the second outer sheath, the inboard surface of first oversheath is provided with the rubber circle.

As a preferable scheme of the present invention, the metal reinforcing member and the loose tube are respectively fixedly connected to the cable sleeve, the loose tube is fixedly wrapped on the outer surface of the side end of the optical fiber, and the number of the loose tubes and the number of the optical fibers are a plurality of groups and are arranged in an annular array.

According to a preferable scheme of the utility model, the aluminum armor and the cable sheath are fixedly connected, the inner sheath and the aluminum armor are fixedly adhered, and the inner sheath and the steel armor component are movably connected.

As a preferable scheme of the present invention, the first limiting ring is fixedly welded to an inner outer surface of the first steel armor pipe, the second limiting ring is fixedly welded to an outer surface of a side end of the second steel armor pipe, and the first steel armor pipe and the second steel armor pipe are movably connected through the first limiting ring and the second limiting ring.

According to the preferable scheme of the utility model, the number of the first limiting rings on the first steel armor pipe is two, the first limiting rings are symmetrically arranged, the number of the second limiting rings on the second steel armor pipe is two, the second limiting rings are symmetrically arranged, and the rubber ring and the second steel armor pipe are mutually attached.

According to a preferable scheme of the utility model, the rubber ring and the first outer sheath are fixedly adhered, the first outer sheath and the first steel armor pipe are mutually attached, and the second outer sheath and the first outer sheath are fixedly adhered.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the steel armor component is arranged and comprises the first steel armor pipe, the second steel armor pipe, the first limiting ring and the second limiting ring, wherein the second steel armor pipe is movably connected with the first steel armor pipe through the first limiting ring and the second limiting ring, so that the steel armor component is beneficial to bending to a certain degree, and the optical cable is convenient to lay.

2. According to the utility model, the aluminum armor is arranged on the outer surface of the inner side of the inner sheath, the steel armor component is arranged on the outer surface of the side end of the inner sheath, the second outer sheath is arranged on the outer surface of the side end of the first outer sheath, the aluminum armor and the steel armor component simultaneously protect the optical fiber, so that the effects of preventing the optical fiber from being bitten by rats and preventing the optical fiber from being wetted are better, and the second outer sheath is adhered to the first outer sheath, so that the crack resistance of the first outer sheath and the second outer sheath can be effectively enhanced.

Drawings

FIG. 1 is an overall schematic view of the present invention;

FIG. 2 is a schematic side cross-sectional view of a first outer jacket and a second outer jacket of the present invention;

FIG. 3 is a schematic overall view of a steel armor assembly of the present invention;

FIG. 4 is a schematic illustration of a steel armor assembly of the present invention disassembled.

In the figure: 1. a metal reinforcement; 2. loosening the sleeve; 3. an optical fiber; 4. a cable cover; 5. aluminum armor; 6. an inner sheath; 7. a steel armor component; 701. a first steel armor pipe; 702. a second steel armor tube; 703. a first limit ring; 704. a second stop collar; 8. a first outer jacket; 9. a second outer sheath; 10. a rubber ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.

While several embodiments of the present invention will be described more fully hereinafter with reference to the accompanying drawings, in order to facilitate an understanding of the utility model, the utility model may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but are to be provided for the purpose of giving the utility model a more complete disclosure.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present, that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, and that the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the terms used herein in the specification of the present invention are for the purpose of describing particular embodiments only and are not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1-4, the present invention provides a technical solution:

the utility model provides a two sheath armor strand optical cable, including metal reinforcement 1, the side surface of metal reinforcement 1 is provided with loose sleeve 2, the inboard surface of loose sleeve 2 is provided with optic fibre 3, the side surface of metal reinforcement 1 and loose sleeve 2 is provided with cable cover 4, the side surface of cable cover 4 is provided with aluminium armour 5, the side surface of aluminium armour 5 is provided with inner sheath 6, the side surface of inner sheath 6 is provided with steel armour subassembly 7, steel armour subassembly 7 includes first steel armour pipe 701, second steel armour pipe 702, first spacing ring 703 and second spacing ring 704, the side surface of steel armour subassembly 7 is provided with first oversheath 8, the side surface of first oversheath 8 is provided with second oversheath 9, the inboard surface of first oversheath 8 is provided with rubber ring 10.

In an embodiment, referring to fig. 1 and 2, a metal reinforcement 1 and a loose tube 2 are respectively fixedly connected with a cable sleeve 4, the loose tube 2 is fixedly wrapped on the outer surface of the side end of an optical fiber 3, the loose tubes 2 and the optical fiber 3 are arranged in a plurality of groups and in an annular array, and the loose tube 2 is beneficial to protecting the optical fiber 3; the connection mode of the aluminum armor 5 and the cable sheath 4 is fixed connection, the connection mode of the inner sheath 6 and the aluminum armor 5 is fixed adhesion, the connection mode of the inner sheath 6 and the steel armor component 7 is movable connection, and the inner sheath 6 is convenient for protecting the aluminum armor 5;

under the condition that the metal reinforcing part 1 and the loose tube 2 are respectively and fixedly connected with the cable sleeve 4, the cable sleeve 4 separates the metal reinforcing part 1 and the loose tube 2, so that the loose tube 2 is prevented from being mutually attached to generate heat;

in an embodiment, referring to fig. 1, 3 and 4, a first limiting ring 703 is fixedly welded to the inner outer surface of a first steel armor pipe 701, a second limiting ring 704 is fixedly welded to the outer surface of the side end of a second steel armor pipe 702, and the first steel armor pipe 701 and the second steel armor pipe 702 are movably connected through the first limiting ring 703 and the second limiting ring 704; the number of the first limiting rings 703 on the first steel armor pipe 701 is two, the first limiting rings are symmetrically arranged, the number of the second limiting rings 704 on the second steel armor pipe 702 is two, the first limiting rings 703 and the second limiting rings 704 are attached to each other, and the first steel armor pipe 701 and the second steel armor pipe 702 are convenient to assemble; the rubber ring 10 is fixedly adhered to the first outer sheath 8, the first outer sheath 8 and the first steel armor pipe 701 are mutually attached, the second outer sheath 9 is fixedly adhered to the first outer sheath 8, and the first outer sheath 8 and the second outer sheath 9 are convenient for protecting the steel armor component 7.

Under the condition that the connection mode of the aluminum armor 5 and the steel armor component 7 is movable connection, the steel armor component 7 is arranged on the outer side of the inner sheath 6, the first steel armor pipe 701 and the second steel armor pipe 702 are movably connected through the first limiting ring 703 and the second limiting ring 704, and the aluminum armor 5 has certain stretchability due to the characteristics of aluminum and is matched with the steel armor component 7 for use, so that the moisture resistance and the rat bite resistance of the optical cable are better, the optical cable has certain flexibility, the laying of the optical cable is facilitated, the rubber ring 10 and the second steel armor pipe 702 are mutually attached, the first outer sheath 8 and the first steel armor pipe 701 are mutually attached, and the first outer sheath 8 and the second outer sheath 9 are fixedly adhered, so that the crack resistance of the first outer sheath 8 and the second outer sheath 9 can be effectively enhanced.

The working process of the utility model is as follows: when the cable sheath is used, under the condition that the metal reinforcing part 1 and the loose tube 2 are fixedly connected with the cable sheath 4 respectively, the cable sheath 4 separates the metal reinforcing part 1 and the loose tube 2, so that the mutual bonding and heat generation between the loose tubes 2 are favorably prevented, under the condition that the connection mode of the aluminum armor 5 and the steel armor component 7 is movable connection, the steel armor component 7 is arranged at the outer side of the inner sheath 6, under the condition that the first steel armor tube 701 and the second steel armor tube 702 are movably connected through the first limiting ring 703 and the second limiting ring 704, and the aluminum armor 5 has certain stretchability due to the self characteristic of aluminum, and is matched with the steel armor component 7 for use, so that the moisture and rat bite resistance of the optical cable is better, the optical cable has certain flexibility, the laying of the optical cable is convenient, under the condition that the rubber ring 10 and the second steel armor tube 702 are bonded with each other, and the first outer sheath 8 and the first steel armor tube 701 are bonded with each other, and the first outer sheath 8 and the second outer sheath 9 are fixedly adhered, so that the crack resistance of the first outer sheath 8 and the second outer sheath 9 can be effectively enhanced.

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 herein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A double-sheath armor stranded optical cable comprises a metal reinforcing part (1), and is characterized in that: the outer surface of the side end of the metal reinforcing piece (1) is provided with a loose tube (2), the outer surface of the inner side of the loose tube (2) is provided with an optical fiber (3), the outer surfaces of the side ends of the metal reinforcing piece (1) and the loose tube (2) are provided with cable sleeves (4), an aluminum armor (5) is arranged on the outer surface of the side end of the cable sleeve (4), an inner sheath (6) is arranged on the outer surface of the side end of the aluminum armor (5), the outer surface of the side end of the inner sheath (6) is provided with a steel armor component (7), the steel armor component (7) comprises a first steel armor pipe (701), a second steel armor pipe (702), a first limiting ring (703) and a second limiting ring (704), a first outer sheath (8) is arranged on the outer surface of the side end of the steel armor component (7), a second outer sheath (9) is arranged on the outer surface of the side end of the first outer sheath (8), the outer surface of the inner side of the first outer sheath (8) is provided with a rubber ring (10).

2. A double-jacketed armor stranded cable according to claim 1, wherein: the optical cable is characterized in that the metal reinforcing part (1) and the loose tubes (2) are fixedly connected with the cable sleeve (4) respectively, the loose tubes (2) are fixedly wrapped on the outer surface of the side end of the optical fiber (3), and the loose tubes (2) and the optical fiber (3) are all in a plurality of groups and are arranged in an annular array.

3. A double-jacketed armor stranded cable according to claim 1, wherein: the connection mode of aluminium armour (5) and cable sheath (4) is fixed connection, the connection mode of inner sheath (6) and aluminium armour (5) is fixed adhesion, the connection mode of inner sheath (6) and steel armour subassembly (7) is swing joint.

4. A double-jacketed armor stranded cable according to claim 1, wherein: the first limiting ring (703) is fixedly welded on the outer surface of the inner side of the first steel armor pipe (701), the second limiting ring (704) is fixedly welded on the outer surface of the side end of the second steel armor pipe (702), and the first steel armor pipe (701) and the second steel armor pipe (702) are movably connected through the first limiting ring (703) and the second limiting ring (704).

5. A double-jacketed armor stranded cable according to claim 1, wherein: the number of the first limiting rings (703) on the first steel armor pipe (701) is two, the first limiting rings are symmetrically arranged, the number of the second limiting rings (704) on the second steel armor pipe (702) is two, the second limiting rings are symmetrically arranged, and the rubber ring (10) and the second steel armor pipe (702) are mutually attached.

6. A double-jacketed armor stranded cable according to claim 1, wherein: the rubber ring (10) and the first outer sheath (8) are fixedly adhered, the first outer sheath (8) and the first steel armor pipe (701) are mutually attached, and the second outer sheath (9) and the first outer sheath (8) are fixedly adhered.