阅读说明：本技术 一种防啮咬光缆 (Optical cable for preventing biting ) 是由 吴海港 王醒东 周杭明 于 2020-03-30 设计创作，主要内容包括：本发明属于光缆领域,尤其涉及一种防啮咬光缆。其包括：铠装层,外护套和芯缆；所述铠装层包覆在外护套外部,芯缆设置在外护套中；所述外护套和芯缆之间设有聚酯纤维层,聚酯纤维层由若干聚酯纤维丝组成。本发明所制得的防啮咬光缆能够有效减轻啮齿类动物的啮咬损伤；防啮咬性能能够长久地保持；所产生的静电安全,对人体无损伤、于自然环境中不产生安全隐患；成本较低,有利于推广和大规模生产使用；光缆成分无毒无害,对环境友好。(The invention belongs to the field of optical cables, and particularly relates to an anti-biting optical cable. It includes: the armor layer, the outer sheath and the core cable; the armor layer is coated outside the outer sheath, and the core cable is arranged in the outer sheath; and a polyester fiber layer is arranged between the outer sheath and the core cable and consists of a plurality of polyester fiber yarns. The anti-rodent optical cable prepared by the invention can effectively reduce the rodent damage caused by the rodent; the anti-biting performance can be kept for a long time; the generated static electricity is safe, has no damage to human bodies and does not generate potential safety hazard in natural environment; the cost is low, and the popularization and large-scale production and use are facilitated; the optical cable components are nontoxic and harmless and are environment-friendly.)

1. An optical cable for preventing biting, comprising:

the armor layer, the outer sheath and the core cable;

the armor layer is coated outside the outer sheath, and the core cable is arranged in the outer sheath;

and a polyester fiber layer is arranged between the outer sheath and the core cable and consists of a plurality of polyester fiber yarns.

2. The optical cable for preventing biting as claimed in claim 1,

the polyester fiber layer is provided with 2-4 layers.

3. The optical cable for preventing biting as claimed in claim 1,

the core part of the outer sheath is provided with a core cavity, and the core cable is arranged in the core cavity;

the core cavity is elliptical.

4. An optical cable for preventing biting as claimed in claim 3,

the outer sheath is butterfly-shaped, and outer sheath sinking grooves are formed in the outer walls corresponding to the two ends of the long axis of the core cavity;

and a PMMA adhesive tape is filled in the outer sleeve sunken groove.

5. The optical cable for preventing biting as claimed in claim 4,

the core cable is formed by coating optical fibers with an inner sheath, and the inner sheath is butterfly-shaped;

the outer wall of the inner sheath is provided with an inner sheath sinking groove;

the inner sleeve sunken groove and the outer sleeve sunken groove are staggered.

6. An optical cable for preventing biting as claimed in claim 5,

and a positioning bulge is arranged on the inner wall of the core cavity corresponding to the inner sleeve sinking groove.

7. The optical cable for preventing biting as claimed in claim 1,

symmetrical reinforcing components are arranged in the outer sheath;

the radial cross section of the reinforcing member is arc-shaped.

8. The optical cable for preventing biting as claimed in claim 7,

the reinforcing member is a non-metal adhesive tape or a conductive metal strip made of FRP materials coated by static conductive materials.

9. The optical cable for preventing biting as claimed in claim 1,

the armor layer and the outer sheath are both made of FPR materials.

Technical Field

The invention belongs to the field of optical cables, and particularly relates to an anti-biting optical cable.

Background

In recent years, the domestic communication industry has been rapidly developed, and optical cables have been built on a large scale as basic resources for supporting communication, and from the viewpoint of construction difficulty and economy, aerial optical cables are one of the main laying methods.

Around the environment where the field overhead optical cable is laid, vegetation is developed, natural conditions are good, and the cable is suitable for living of many wild animals, so that the cable is naturally seriously damaged by nibbling. The optical cable is passed through the jungle, so that a leisure and recreation platform is provided for the rodents, and the special hardness and the aromatic odor of the existing optical cable sheath attract the rodents, so that the optical cable generates great attraction for the rodents.

In order to overcome the problem that the wild overhead optical cable is easy to generate bite damage when being laid, various optical cables with bite prevention performance are developed at present. For example, common GYTA optical cables and some lightning-prone areas adopt aerial optical cables with all-nonmetal structures, but in areas with developed vegetation, most of existing optical cables for preventing biting are too large to produce excellent effects of preventing biting, wherein most of the optical cables for preventing biting adopt a physical strengthening mode to improve the performance of preventing biting of the optical cables, but the optical cables for preventing biting are not root-cause and are still easy to damage after long-term use, most of optical cables for preventing biting by a chemical method adopt a mode of adding synthetic capsaicin, and the synthetic capsaicin is easy to diffuse and volatilize in the service process of the optical cables, so that the effective period of the optical cables is short, and the optical cables for preventing biting by the chemical method generally have certain toxicity and certain pollution to the environment, while the rest optical cables for preventing biting generally have the problems of serious high production and manufacturing costs and the like.

Disclosure of Invention

The invention provides an optical cable for preventing nibbling, aiming at solving the problems that the existing optical cable has limited performance for preventing nibbling, the physical method can not control the symptoms and the root, and the chemical method can prevent nibbling damage and has short effective period caused by volatilization and diffusion of chemical components. The invention aims to: firstly, the optical cable can dynamically generate static electricity to realize the effects of repelling rodents and preventing biting; ensuring that static electricity is in a safe range, causing no damage to people and generating no potential safety hazard in a natural environment; thirdly, the preparation cost is reduced, so that the method has good universality and popularization value; fourthly, the optical cable is ensured to be non-toxic and environment-friendly.

In order to achieve the purpose, the invention adopts the following technical scheme.

An optical cable for preventing biting, comprising:

the armor layer, the outer sheath and the core cable;

the armor layer is coated outside the outer sheath, and the core cable is arranged in the outer sheath;

and a polyester fiber layer is arranged between the outer sheath and the core cable and consists of a plurality of polyester fiber yarns.

As a preference, the first and second liquid crystal compositions are,

the polyester fiber layer is provided with 2-4 layers.

As a preference, the first and second liquid crystal compositions are,

the core part of the outer sheath is provided with a core cavity, and the core cable is arranged in the core cavity;

the core cavity is elliptical.

As a preference, the first and second liquid crystal compositions are,

the outer sheath is butterfly-shaped, and outer sheath sinking grooves are formed in the outer walls corresponding to the two ends of the long axis of the core cavity;

and a PMMA adhesive tape is filled in the outer sleeve sunken groove.

As a preference, the first and second liquid crystal compositions are,

the core cable is formed by coating optical fibers with an inner sheath, and the inner sheath is butterfly-shaped;

the outer wall of the inner sheath is provided with an inner sheath sinking groove;

the inner sleeve sunken groove and the outer sleeve sunken groove are staggered.

As a preference, the first and second liquid crystal compositions are,

and a positioning bulge is arranged on the inner wall of the core cavity corresponding to the inner sleeve sinking groove.

As a preference, the first and second liquid crystal compositions are,

symmetrical reinforcing components are arranged in the outer sheath;

the radial cross section of the reinforcing member is arc-shaped.

As a preference, the first and second liquid crystal compositions are,

the reinforcing member is a non-metal adhesive tape or a conductive metal strip made of FRP materials coated by static conductive materials.

As a preference, the first and second liquid crystal compositions are,

the armor layer and the outer sheath are both made of FPR materials.

The invention has the beneficial effects that:

1) the rodent bite damage of rodents can be effectively reduced;

2) the anti-biting performance can be kept for a long time;

3) the generated static electricity is safe, has no damage to human bodies and does not generate potential safety hazard in natural environment;

4) the cost is low, and the popularization and large-scale production and use are facilitated;

5) the optical cable components are nontoxic and harmless and are environment-friendly.

Drawings

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

fig. 2 is an enlarged schematic view of a portion a of fig. 1.

In the figure: the optical fiber cable comprises an armor layer 1, an outer sheath 2, an outer sleeve 201, a positioning protrusion 202, a core cavity 203, a core cable 3, an inner sleeve 301, an optical fiber 302, a filling rope 303, an inner sleeve 304, a reinforcing member 4, a polyester fiber layer 5 and a PMMA adhesive tape 6.

Detailed Description

The invention is described in further detail below with reference to specific embodiments and the attached drawing figures. Those skilled in the art will be able to implement the invention based on these teachings. Moreover, the embodiments of the present invention described in the following description are generally only some embodiments of the present invention, and not all embodiments. Therefore, all other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative effort shall fall within the protection scope of the present invention.

Unless otherwise specified, the raw materials used in the examples of the present invention are all commercially available or available to those skilled in the art; unless otherwise specified, the methods used in the examples of the present invention are all those known to those skilled in the art.