CN215833658U

CN215833658U - All-dielectric rat-bite-proof flame-retardant indoor optical cable

Info

Publication number: CN215833658U
Application number: CN202121277347.2U
Authority: CN
Inventors: 沈俊峰; 徐云; 荆人杰; 丁赟超; 王瑜哲; 许思远; 虞秀薇; 王俊; 陈春明
Original assignee: ZHEJIANG HEADWAY COMMUNICATION EQUIPMENT CO Ltd
Current assignee: ZHEJIANG HEADWAY COMMUNICATION EQUIPMENT CO Ltd
Priority date: 2021-06-09
Filing date: 2021-06-09
Publication date: 2022-02-15
Anticipated expiration: 2031-06-09

Abstract

The utility model provides an all-dielectric rat-bite-preventing flame-retardant indoor optical cable which comprises a cable core, wherein a true aramid fiber layer, a fiber woven layer, a first glass yarn layer, a first sheath, a second glass yarn layer and a second sheath are sequentially arranged outside the cable core from inside to outside. The utility model has the beneficial effects that: the first glass yarn layer, the second glass yarn layer and the plurality of central reinforcing pieces have the function of preventing the rat from biting; the fiber braided layer has the function of reinforcing the structure; the true aramid fiber layer has the functions of bulletproof, flame retardant and tensile strength.

Description

All-dielectric rat-bite-proof flame-retardant indoor optical cable

Technical Field

The utility model belongs to the technical field of power communication optical cables, and particularly relates to an all-dielectric rat-bite-preventing flame-retardant indoor optical cable.

Background

With the rapid development of optical fiber communication, optical fibers are generally applied in various fields with excellent performances such as high bandwidth, low loss, interference resistance and the like, and the use environment of optical cables is more complex and changeable. At present, especially in areas with more rat damage, the optical cable has poor rat-proof effect and the service life is reduced; and the flame retardant effect is poor, and the safety problem exists when fire disaster occurs.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an all-dielectric rat-bite-preventing flame-retardant indoor optical cable which has the functions of bulletproof property, flame retardance, tensile strength and the like, can prevent rat bite and is particularly suitable for being laid indoors in regions with more rat damages.

The technical scheme of the utility model is as follows: the utility model provides an all-dielectric rat-bite-proof flame-retardant indoor optical cable, includes the cable core, is equipped with true aramid fiber layer, fibre weaving layer, first glass yarn layer, first sheath, second glass yarn layer, second sheath from inside to outside in proper order outside the cable core, the cable core including be located at least one central reinforcement of center and around many loose tube optical fiber unit of central reinforcement transposition, and every loose tube optical fiber unit includes loose tube and sets up many optic fibre in loose tube, the space between optic fibre and the loose tube still packs and has fine cream, the second sheath in set up the tear rope.

Preferably, the first sheath is an outer sheath made of low smoke zero halogen material.

Preferably, the second sheath is an outer sheath of PE material.

Preferably, a water-resistant layer is arranged between the fiber woven layer and the first glass yarn layer, and the water-resistant layer is made of a water-resistant material.

The utility model has the advantages and positive effects that: by adopting the technical scheme, the first glass yarn layer, the second glass yarn layer and the plurality of central reinforcing pieces have the function of preventing the rat bite; the fiber braided layer has the function of reinforcing the structure; the true aramid fiber layer has the functions of bulletproof, flame retardant and tensile strength.

Drawings

Fig. 1 is a schematic structural view of the present invention.

In the figure:

1. center reinforcement 2, loose tube optical fiber unit 3, true aramid fiber layer

4. A fiber braided layer 5, a first glass yarn layer 6 and a first sheath

7. A second glass yarn layer 8 and a second sheath.

Detailed Description

As shown in fig. 1, the technical scheme of the utility model is an all-dielectric rat-bite-proof flame-retardant indoor optical cable, which comprises a cable core, wherein a true aramid fiber layer 3, a fiber woven layer 4, a first glass yarn layer 5, a first sheath 6, a second glass yarn layer 7 and a second sheath 8 are sequentially arranged outside the cable core from inside to outside, the true aramid fiber layer 3 has the functions of bulletproof, flame-retardant and tensile resistance, the fiber woven layer 4 has the function of a reinforcing structure, the first glass yarn layer 5 and the second glass yarn layer 6 have the rat-bite-proof function, the cable core comprises at least one central reinforcing member 1 positioned in the center and a plurality of loose tube optical fiber units 2 twisted around the central reinforcing member 1, each loose tube optical fiber unit comprises a loose tube and a plurality of optical fibers arranged in the loose tube, gaps between the optical fibers and the loose tube are filled with fiber paste, a tearing rope is arranged in the second sheath, so as to facilitate the stripping of the sheath.

In this embodiment, the first sheath 6 is an outer sheath made of a low-smoke halogen-free material.

In this embodiment, the second sheath 8 is an outer sheath made of PE material, and has good ultraviolet resistance.

In this embodiment, a water-blocking layer 9 is disposed between the fiber woven layer 4 and the first glass yarn layer 5, and the water-blocking layer 9 is made of a water-blocking material.

The working process of the example is as follows: the optical cable is mainly laid indoors, and the first glass yarn layer 5, the second glass yarn layer 7 and the plurality of central reinforcements 1 are arranged, so that the strength of the optical cable is improved, and the optical cable has the function of preventing rats from being bitten; the arranged true aramid fiber layer 3 has the functions of bulletproof, flame retardant and tensile strength; the fiber braided layer 4 is reinforced outside the cable core to play a role in processing the optical cable.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the utility model. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.

Claims

1. The utility model provides an all-dielectric protection against rodents stings fire-retardant indoor optical cable which characterized in that: including the cable core, be equipped with true aramid fiber layer, fiber weaving layer, first glass yarn layer, first sheath, second glass yarn layer, second sheath from inside to outside in proper order outside the cable core, the cable core including be located at the center at least one central reinforcement and around many loose tube optical fiber unit of central reinforcement transposition, and every loose tube optical fiber unit includes loose tube and sets up many optic fibre in loose tube, space between optic fibre and the loose tube still packs fine cream, the second sheath in set up the tear rope.

2. The all-dielectric rat-bite-proof flame-retardant indoor optical cable according to claim 1, characterized in that: the first sheath is an outer sheath made of low-smoke halogen-free materials.

3. The all-dielectric rat-bite-proof flame-retardant indoor optical cable according to claim 1, characterized in that: the second sheath is an outer sheath made of PE material.

4. The all-dielectric rat-bite-proof flame-retardant indoor optical cable according to claim 1, characterized in that: and a water-resistant layer is arranged between the fiber woven layer and the first glass yarn layer and is made of a water-resistant material.