CN217587699U

CN217587699U - Optical cable for indoor use

Info

Publication number: CN217587699U
Application number: CN202221045969.7U
Authority: CN
Inventors: 厉波琴; 王迪波
Original assignee: Ningbo Geyida Cable Technology Co ltd
Current assignee: Ningbo Geyida Cable Technology Co ltd
Priority date: 2022-04-27
Filing date: 2022-04-27
Publication date: 2022-10-14
Anticipated expiration: 2032-04-27

Abstract

The utility model discloses an indoor optical cable, which comprises a cable core, wherein the outer side of the cable core is sequentially provided with a metal protective layer, an inner reinforced layer, a subunit sheath, an outer reinforced layer and an outer sheath from inside to outside; the cable core comprises a sub-tube positioned in the metal protective layer and a plurality of optical fibers positioned in the sub-tube. The metal protective layer is a steel wire spiral armor pipe; the metal protective layer formed by the spiral steel wire can prevent rats from damaging the cable core, and can improve the flattening resistance and mechanical property of the optical cable. The subunit sheath and the outer sheath are both made of LSZH halogen-free low-smoke flame-retardant materials. The inner reinforcing layer and the outer reinforcing layer are both made of nonmetal aramid yarns; the metal protective layer is arranged outside the cable core, the inner reinforcing layer, the subunit jacket and the outer reinforcing layer are arranged outside the cable core, so that the optical cable can be prevented from being bitten by rats and has strong compression and flattening resistance and better mechanical performance.

Description

Optical cable for indoor use

Technical Field

The utility model relates to an optical cable technical field especially relates to an optical cable of indoor usefulness.

Background

With the development of science and technology, technological innovation is changing day by day, and optical cable technology has penetrated into various fields. Optical fiber cables (optical fiber cables) are manufactured to meet optical, mechanical, or environmental performance specifications and utilize one or more optical fibers disposed in a surrounding jacket as a transmission medium and are telecommunication cable assemblies that may be used individually or in groups. The optical cable is mainly composed of optical fibers (thin glass filaments like hair), a plastic protective sleeve and a plastic sheath. 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 environment for using the optical cables is more complex and changeable. At present, especially in a room with more rat damage, the optical cable has poor rat-proof effect and the service life is reduced.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects existing in the prior art, the utility model provides an optical cable for indoor use.

The technical scheme of the utility model is realized like this:

an indoor optical cable comprises a cable core, wherein a metal protective layer, an inner reinforcing layer, a subunit sheath, an outer reinforcing layer and an outer sheath are sequentially arranged on the outer side of the cable core from inside to outside; the cable core comprises a sub-tube positioned in the metal protective layer and a plurality of optical fibers positioned in the sub-tube.

Through the technical scheme, the metal protective layer, the inner reinforcing layer, the subunit jacket and the outer reinforcing layer are arranged outside the cable core, so that the optical cable can be prevented from being bitten by rats and has strong compression and flattening resistance and better mechanical performance.

In the indoor optical cable of the utility model, the metal protective layer is a steel wire spiral armored pipe; the metal protective layer formed by the spiral steel wire can prevent rats from damaging the cable core, and can improve the flattening resistance and mechanical property of the optical cable.

In the optical cable for indoor use of the present invention, the subunit sheath and the outer sheath are made of LSZH halogen-free low-smoke flame retardant material.

The utility model discloses an among this kind of optical cable of indoor usefulness, interior enhancement layer and outer reinforcement layer all are made by nonmetal aramid yarn, adopt aramid yarn to make interior enhancement layer and outer reinforcement layer under higher temperature, can keep inherent stability, and very low shrinkage factor, lower creep, and have higher corrosion resisting property.

In the optical cable for indoor use of the present invention, the optical fiber is a colored optical fiber and the number of the optical fibers is 12.

In the optical cable for indoor use of the present invention, the wall thickness of the subunit jacket is 0.5mm to 0.65mm.

In the optical cable for indoor use of the present invention, the wall thickness of the outer sheath is 1mm to 1.35mm. Implement the utility model discloses an optical cable of this kind of indoor usefulness has following beneficial effect: the metal protective layer, the inner reinforcing layer, the subunit jacket and the outer reinforcing layer are arranged outside the cable core, so that the optical cable can be prevented from being bitten by rats and has strong compression resistance and good mechanical performance.

Drawings

Fig. 1 is a schematic view of the structure of the optical cable for indoor use of the present invention.

Detailed Description

To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

It should be noted that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. .

As shown in fig. 1, the optical cable for indoor use of the present invention comprises a cable core, wherein a metal protective layer 1, an inner reinforcing layer 2, a subunit sheath 3, an outer reinforcing layer 4 and an outer sheath 5 are sequentially arranged on the outer side of the cable core from inside to outside; the cable core comprises a sub-tube 6 positioned in the metal protective layer 1 and a plurality of optical fibers 7 positioned in the sub-tube 6. The metal protective layer 1 is a steel wire spiral armor pipe.

The optical cable in this embodiment can make the optical cable prevent that the mouse bites bad through set up the metal inoxidizing coating 1 of making by steel wire spiral armour pipe in the cable core outside to and interior enhancement layer 2, subunit sheath 3, outer reinforced layer 4, and have very strong resistance to compression flat ability, and better mechanical properties.

In addition, in order to improve the flame retardant property of the optical cable, the subunit sheath 3 and the outer sheath 5 are both made of LSZH halogen-free low-smoke flame retardant materials.

In this embodiment, the inner reinforcing layer 2 and the outer reinforcing layer 4 are both made of non-metal aramid yarns, and the aramid yarns are adopted to enable the inner reinforcing layer 2 and the outer reinforcing layer 4 to maintain inherent stability, have very low shrinkage rate and low creep deformation at a high temperature, and have high corrosion resistance. The optical fibers 7 are colored optical fibers 7, and the number of the optical fibers is 12. The wall thickness of the subunit jacket 3 is 0.5mm to 0.65mm, preferably 0.55mm. The outer sheath 5 has a wall thickness of 1mm to 1.35mm, preferably 1.2mm.

The above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An indoor optical cable is characterized by comprising a cable core, wherein a metal protective layer (1), an inner reinforcing layer (2), a subunit sheath (3), an outer reinforcing layer (4) and an outer sheath (5) are sequentially arranged on the outer side of the cable core from inside to outside; the cable core comprises a sub-tube (6) positioned in the metal protective layer (1) and a plurality of optical fibers (7) positioned in the sub-tube (6).

2. An indoor optical cable according to claim 1, wherein the metal shielding layer (1) is a steel wire spiral armor tube.

3. An indoor optical cable according to claim 1, wherein the subunit jacket (3) and the outer jacket (5) are both made of LSZH halogen-free low smoke flame retardant material.

4. An indoor optical cable according to claim 1, wherein the inner reinforcing layer (2) and the outer reinforcing layer (4) are made of non-metal aramid yarn.

5. An indoor optical cable according to claim 1, wherein the optical fibers (7) are colored optical fibers and the number thereof is 12.

6. An indoor optical cable according to claim 1, wherein the wall thickness of the subunit jacket (3) is 0.5mm-0.65mm.

7. An indoor optical cable according to claim 1, wherein the outer sheath (5) has a wall thickness of 1mm to 1.35mm.