CN210091752U

CN210091752U - Composite optical fiber cable

Info

Publication number: CN210091752U
Application number: CN201920682897.9U
Authority: CN
Inventors: 汪彦军
Original assignee: Haikou Xingyuan Network Technology Co Ltd
Current assignee: Haikou Xingyuan Network Technology Co Ltd
Priority date: 2019-05-13
Filing date: 2019-05-13
Publication date: 2020-02-18
Anticipated expiration: 2029-05-13

Abstract

The utility model relates to a combined type optical fiber cable, including the electric wire unit that is located the innermost side, the optical fiber unit that is located the outermost side, and glass fiber layer and inner sheath that are located between electric wire unit and the optical fiber unit, the glass fiber layer sets up in the inboard of inner sheath, wherein, electric wire unit includes many electric wires, and the clearance intussuseption between many electric wires is filled with foam cushioning material; the optical fiber unit comprises a plurality of optical fiber grooves which are uniformly distributed along the periphery of the optical fiber unit, an optical fiber cable is arranged in each optical fiber groove, and the optical fiber cables are fixed in the optical fiber grooves through outer elastic buffer cushion blocks. The utility model provides a combined type fiber optic cable, stable in structure, installation and change convenience, and can avoid the cluster line and signal interference.

Description

Composite optical fiber cable

Technical Field

The utility model relates to a communication equipment technical field, concretely relates to combined type optical fiber cable.

Background

The optical fiber cable is used as a new generation of transmission medium, compared with a copper medium, the optical fiber cable has great improvement in safety, reliability and network performance, besides, the broadband of optical fiber transmission greatly exceeds that of the copper cable, and the maximum connection distance supported by the optical fiber cable reaches more than two kilometers, so that the optical fiber cable is an inevitable choice for building a large-scale network. The optical fiber cable has the advantages of good electromagnetic interference resistance, strong confidentiality, high speed, large transmission capacity and the like, and is widely used indoors, however, the optical fiber cable is found to be easy to corrode and deform under the action of external impact force, friction force and mechanical tension due to frequent bending adjustment in an indoor use process, so that the service life of the optical fiber cable is greatly influenced.

Accordingly, improvements in existing fiber optic cables are desired.

SUMMERY OF THE UTILITY MODEL

For solving the not enough of prior art existence, the utility model provides a combined type fiber optic cable, include: an electric wire unit located at the innermost side, an optical fiber unit located at the outermost side, and a glass fiber layer and an inner sheath located between the electric wire unit and the optical fiber unit, the glass fiber layer being disposed inside the inner sheath, wherein,

the wire unit comprises a plurality of wires, and foam buffer materials are filled in gaps among the wires;

the optical fiber unit comprises a plurality of optical fiber grooves which are uniformly distributed along the periphery of the optical fiber unit, an optical fiber cable is arranged in each optical fiber groove, and the optical fiber cables are fixed in the optical fiber grooves through outer elastic buffer cushion blocks.

The center of the wire unit is provided with a central reinforcing column, an insulating protective layer is arranged outside the central reinforcing column, and the insulating protective layer isolates the central reinforcing column from the plurality of wires.

The electric wire sequentially comprises a metal copper wire, a metal shielding layer and an insulating protective layer from inside to outside, wherein the metal shielding layer is made of lead or graphite, and the insulating protective layer is made of rubber.

Wherein the foam buffer material is selected from polystyrene foam, polyurethane foam or air cushion film.

Wherein, the material of inner sheath is selected from insulating cotton thread or tensile nylon rope.

The optical fiber unit comprises an optical fiber body outer protection layer, the optical fiber body outer protection layer covers the inner sheath, the optical fiber grooves are uniformly distributed on the outermost side of the optical fiber body outer protection layer, and the optical fiber body outer protection layer is made of polyvinyl chloride.

The optical fiber cable sequentially comprises a cable core, an insulating shielding layer, an elastic support ring, an inner protective layer and an outer protective layer from inside to outside, wherein the insulating shielding layer is made of polypropylene foam plastics or an air cushion film; the elastic support ring is made of natural rubber, butyronitrile rubber or butyl rubber; the materials of the inner protective layer and the outer protective layer are respectively selected from polyurethane and polyvinyl chloride, and the part which is not filled by the optical fiber cable in the optical fiber groove is filled with an outer elastic buffer cushion block.

The elastic support ring comprises an inner support ring, an outer support ring and a plurality of connecting spokes, the connecting spokes are uniformly distributed between the inner support ring and the outer support ring and are connected with the inner support ring and the outer support ring, and inner elastic buffer cushion blocks are filled in gaps among the connecting spokes, the inner support ring and the outer support ring.

The inner elastic cushion block and the outer elastic cushion block are made of glass fiber cloth.

The utility model provides a combined type fiber optic cable, stable in structure, installation and change convenience, and can avoid the cluster line and signal interference.

Drawings

FIG. 1: the utility model provides a combined type fiber optic cable's cross-sectional view.

Description of the reference numerals

10-wire unit, 20-glass fiber layer, 30-inner sheath, 40-optical fiber unit;

11-a central reinforcing column, 12-an insulating protective layer, 13-a metal copper wire, 14-a metal shielding layer and 15-an insulating protective layer;

41-optical fiber body protective layer, 42-optical fiber groove, 43-optical fiber cable and 44-outer elastic buffer cushion block;

431-a cable core, 432-an insulating shielding layer, 433-an elastic support ring, 433A-an inner support ring, 433B-an outer support ring, 433C-a connecting spoke, 433D-an inner elastic buffer cushion block, 434-an inner protective layer and 435-an outer protective layer.

Detailed Description

In order to further understand the technical solution and the advantages of the present invention, the following detailed description will be made with reference to the accompanying drawings.

Fig. 1 is the utility model provides a combined type fiber optic cable's cross-sectional view, as shown in fig. 1, the utility model provides a combined type fiber optic cable, from interior to exterior includes electric wire unit 10, glass fiber layer 20, inner sheath 30 and fiber unit 40 in proper order, glass fiber layer 20's material is selected from glass fiber, a steady effect of reinforceing is played to the structure of whole electric wire unit 10, inner sheath 30 cladding is in the glass fiber layer 20 outside, further protect electric wire unit 10 in glass fiber layer 20 and the glass fiber layer 20, inner sheath 30's material preferred is selected from the material gently, and the insulating material that frictional property is good, like insulating cotton or tensile nylon rope etc..

The main material filled in the wire unit 10 is foam buffer material, the selection of the foam buffer material is mainly light, flexible and insulating, and the foam buffer material needs to have certain buffer performance, when the optical fiber cable is impacted by external acting force, the foam buffer material can play a certain protection role on the wire unit 10, and simultaneously, the signal interference, mechanical force influence and the like between the wire unit 10 and the optical fiber unit 40 are isolated, the foam buffer material is preferably selected from polystyrene foam plastic, polyurethane foam plastic or an air cushion film, and the foam buffer material is obtained by a large amount of contrast optimization of the inventor, and under the condition of selecting the three materials, the material of the optical fiber cable is lightest, and the signal stability is optimal.

The electric wire unit 10 comprises a central reinforcing column 11 arranged at the center of the whole optical fiber cable, an insulating protective layer 12 arranged outside the central reinforcing column 11 and a plurality of electric wires, wherein the central reinforcing column 11 is isolated from the plurality of electric wires by the insulating protective layer 12, each electric wire sequentially comprises a metal copper wire 13, a metal shielding layer 14 and an insulating protective layer 15 from inside to outside, the metal shielding layer 14 is made of lead or graphite, and the insulating protective layer 15 is made of rubber. The metal shielding layer 14 is used for shielding signal interference among a plurality of wires and preventing signal crosstalk, and the insulating protective layer 15 is used for protecting each metal copper wire 13 and the metal shielding layer 14.

The optical fiber unit 40 includes the optical fiber body outer sheath 41, the 41 cladding inner sheath 30 of optical fiber body outer sheath, a plurality of optical fiber grooves 42 evenly distributed is in the outside of optical fiber body outer sheath 41, be provided with the optical fiber cable 43 in every optical fiber groove 42, the outermost structure of optical fiber cable is regarded as to optical fiber body outer sheath 41, its material preferred is selected from polyvinyl chloride, can play signal isolation to whole optical fiber cable on the one hand, the effect of structure protection, on the other hand, polyvinyl chloride is favorable to the setting of optical fiber groove 42, and can with the optical fiber groove 42 between through great frictional force cooperation, make things convenient for optical fiber groove 42 and then make things convenient for fixing and the change of optical fiber cable 43.

Specifically, the optical fiber cable 43 is fixed in each optical fiber groove 42 by an outer elastic cushion block 44. Each optical fiber cable 43 sequentially comprises a cable core 431, an insulating shielding layer 432, an elastic support ring 433, an inner protective layer 434 and an outer protective layer 435 from inside to outside, wherein the insulating shielding layer 432 is made of polypropylene foam plastic or an air cushion film; the elastic support ring 433 is made of natural rubber, butyronitrile rubber or butyl rubber; the inner protection layer 434 and the outer protection layer 435 are made of polyurethane and polyvinyl chloride, the part of the optical fiber groove 42 not filled by the optical fiber cable 43 is filled with an outer elastic cushion block 44, and the material of the outer elastic cushion block 44 is preferably selected from glass fiber cloth, which has a better cushion performance considering the glass fiber cloth and can buffer external impact on one hand, and has a better friction performance to form a stable friction bonding force with the outer protection layer 435 on the outermost layer of the optical fiber cable 43 and the optical fiber body protection layer 41 of the optical fiber unit 40, so that the optical fiber cable 43 is stably fixed in the optical fiber groove 42 on the other hand; finally, compared with insulating rubber and the like, the glass fiber cloth is lighter in material, and the weight of the whole optical fiber cable can be reduced to a certain extent.

The effect of elastic support ring 433 lies in protecting the optical cable core 431 of innermost side, when making optical cable core 431 receive external impact, or optical cable is not become when being twined and curl, and the performance is not influenced, in order to realize above-mentioned effect, the utility model discloses an elastic support ring 433 includes inner support ring 433A, outer support ring 433B and evenly distributed is connected a plurality of connecting spokes 433C of inner support ring 433A and outer support ring 433B between inner support ring 433A and outer support ring 433B, connecting spokes 433C, the clearance intussuseption between inner support ring 433A and the outer support ring 433B is filled with interior elastic buffer cushion block 433D, the selection principle of interior elastic buffer cushion block 433D material is the same with outer elastic buffer cushion block 44, consequently, the material preferred of interior elastic buffer cushion block 433D also is selected from glass fiber cloth.

The utility model has the advantages as follows:

1. through the foam buffer material filled in the wire unit, the metal shielding layer, the glass fiber layer and the inner sheath between the wire unit and the optical fiber unit, the optical fiber cable has a stable signal transmission function, and the wire stringing and the signal interference are avoided.

2. Through the arrangement of the elastic support ring in the optical fiber unit, the optical fiber cable can still keep good structural stability when being impacted by external mechanical force or being wound and curled.

3. Through the arrangement of the optical fiber grooves, the installation and the replacement of the optical fiber cable are facilitated.

Although the present invention has been described with reference to the above preferred embodiments, it is not intended to limit the scope of the present invention, and various changes and modifications relative to the above embodiments may be made by those skilled in the art without departing from the spirit and scope of the present invention.

Claims

1. A composite fiber optic cable, comprising: an electric wire unit located at the innermost side, an optical fiber unit located at the outermost side, and a glass fiber layer and an inner sheath located between the electric wire unit and the optical fiber unit, the glass fiber layer being disposed inside the inner sheath, wherein,

2. The composite fiber optic cable of claim 1, wherein: the center of the wire unit is provided with a central reinforcing column, an insulating protective layer is arranged outside the central reinforcing column, and the central reinforcing column is isolated from the plurality of wires by the insulating protective layer.

3. The composite fiber optic cable of claim 1, wherein: the electric wire comprises a metal copper wire, a metal shielding layer and an insulating protective layer in sequence from inside to outside, wherein the metal shielding layer is made of lead or graphite, and the insulating protective layer is made of rubber.

4. The composite fiber optic cable of claim 1, wherein: the foam buffer material is selected from polystyrene foam, polyurethane foam or air cushion film.

5. The composite fiber optic cable of claim 1, wherein: the inner sheath is made of an insulating cotton thread or a tensile nylon rope.

6. The composite fiber optic cable of claim 1, wherein: the optical fiber unit comprises an optical fiber body outer protection layer, the optical fiber body outer protection layer covers the inner sheath, the optical fiber grooves are uniformly distributed on the outermost side of the optical fiber body outer protection layer, and the material of the optical fiber body outer protection layer is selected from polyvinyl chloride.

7. The composite fiber optic cable of claim 1, wherein: the optical fiber cable sequentially comprises a cable core, an insulating shielding layer, an elastic support ring, an inner protective layer and an outer protective layer from inside to outside, wherein the insulating shielding layer is made of polypropylene foam plastic or an air cushion film; the elastic support ring is made of natural rubber, butyronitrile rubber or butyl rubber; the materials of the inner protective layer and the outer protective layer are respectively selected from polyurethane and polyvinyl chloride, and the part which is not filled by the optical fiber cable in the optical fiber groove is filled with an outer elastic buffer cushion block.

8. The composite fiber optic cable of claim 7, wherein: the elastic support ring comprises an inner support ring, an outer support ring and a plurality of connecting spokes, the connecting spokes are uniformly distributed between the inner support ring and the outer support ring and are connected with the inner support ring and the outer support ring, and inner elastic buffer cushion blocks are filled in gaps among the connecting spokes, the inner support ring and the outer support ring.

9. The composite fiber optic cable of claim 8, wherein: the inner elastic cushion block and the outer elastic cushion block are made of glass fiber cloth.