CN211905802U

CN211905802U - Non-metal flame-retardant fireproof bite-proof optical cable

Info

Publication number: CN211905802U
Application number: CN202020318695.9U
Authority: CN
Inventors: 周礼文; 李佳东; 秦泗健; 樊伟声; 黄家豪
Original assignee: Jiangsu Jillion Optoelectric Technology Co ltd
Current assignee: Jiangsu Jillion Optoelectric Technology Co ltd
Priority date: 2020-03-13
Filing date: 2020-03-13
Publication date: 2020-11-10
Anticipated expiration: 2030-03-13

Abstract

The utility model provides a non-metallic flame-retardant fire-resistant anti-bite optical cable, include: the optical cable comprises an optical cable core, a fire-resistant layer, an armor layer and an outer protective layer; the optical cable core is arranged in the center of the optical cable, the fire-resistant layer is extruded outside the optical cable core, the armor layer is coated outside the fire-resistant layer, and the outer protective layer is extruded outside the armor layer. The fire-resistant layer is made of thermoplastic low-smoke halogen-free ceramic polyolefin, and when the outer protective layer of the optical cable is damaged in extreme conditions such as a sudden fire place and the like, the ceramic fire-resistant layer is quickly converted into a ceramic hard shell along with the rise of temperature, so that the optical cable can keep the communication capacity for a period of time; the armor is peripheral at the flame retardant coating by the cladding of a plurality of arch FRP strip, and seamless butt joint between each arch FRP strip forms a smooth cylindrical tubbiness structure, carries out totally closed protection to cable core and flame retardant coating, can bear great resistance to compression stretching resistance, also has better heat-proof effect, and simultaneously, rodent gnaws and stings no effort point, has good anti-bite performance.

Description

Non-metal flame-retardant fireproof bite-proof optical cable

Technical Field

The utility model relates to a non-metallic optical cable especially relates to a high fire-retardant fire-resistant anti-bite type optical cable, belongs to the optical fiber cable field.

Background

Along with the development of communication technology, the application range of optical cables is more and more extensive, but the situation that the optical cables are bitten by mice often happens, although some optical cables adopt certain rat-proof measures, rat-proof agents are added into sheath materials of the optical cables or glass fibers are wrapped on the periphery of cable cores of the optical cables, when the mice bite the optical cables, the sheath materials and the glass fibers on the periphery of the cable cores can generate certain stimulation to the mice, a certain rat-proof effect can be achieved, the bite of the mice is relieved, and the long-term rat bite cannot be solved according to the above; in addition, the requirement on environmental protection and fire protection is high at present, and the optical cable is required to have the flame-retardant and fire-resistant functions in many places.

In view of the above, there is a need for a new optical cable structure to solve the above problems, and an optical cable with good flame retardant, fire resistant, low smoke and halogen free, and anti-biting properties is needed.

Disclosure of Invention

To exist not enough among the prior art, the utility model provides a nonmetal fire-retardant fire-resistant optical cable of preventing stinging, the structure is simple and convenient, light in weight, tensile, anti side pressure, shock-resistant, prevent stinging, fire-retardant fire behavior is good, there is not steamed low cigarette, satisfies the high place of environmental protection fire-fighting requirement and uses, has apparent economic benefits. The utility model adopts the technical proposal that:

a non-metallic flame retardant, fire resistant bite resistant optical cable comprising: the optical cable comprises an optical cable core, a fire-resistant layer, an armor layer and an outer protective layer; the optical cable core is arranged in the center of the optical cable, the fire-resistant layer is extruded outside the optical cable core, the armor layer is coated outside the fire-resistant layer, and the outer protective layer is extruded outside the armor layer.

Further, the fire-resistant layer material is thermoplastic low-smoke halogen-free ceramic polyolefin.

Furthermore, the armor is wrapped at the fire-resistant layer periphery by a plurality of arch FRP (fibre reinforced composite) strips, and seamless butt joint between each arch FRP strip forms a smooth cylindrical tubbiness structure, carries out full closed protection to cable core and fire-resistant layer, can bear great resistance to compression stretching, also has better heat-insulating effect, and simultaneously, rodent gnaws and stings no stress point, has good anti-bite performance.

Further, the outer protective layer material is ratproof halogen-free low-smoke polyolefin.

The utility model has the advantages that:

1. the utility model provides an optical cable is prevented stinging by fire-retardant fire-resistant of nonmetal, the flame retardant coating adopts the ceramic polyolefin material of low smoke and zero halogen of thermoplasticity, under the extreme condition such as emergency fire place, when the optical cable oversheath is destroyed, pottery flame retardant coating is along with the rising of temperature, turn into the hard casing of ceramic form rapidly, can block the influence of fire source to optical cable flame retardant coating inner structure unit, make the optical cable can keep a period communication ability, provide certain time guarantee for rescue personnel life and property safety.

2. The armor is peripheral at the flame retardant coating by a plurality of arch FRP strip cladding, seamless butt joint between each arch FRP strip, forms a glossy cylindrical tubbiness structure, carries out totally closed protection to cable core and flame retardant coating, can bear great resistance to compression stretching resistance, also has better heat-insulating effect, and simultaneously, rodent gnaws and stings no effort point, has good and prevents stinging the performance, and the armor is resistance to compression stretching protective layer, is the insulating layer, also prevents stinging the layer simultaneously.

3. The utility model provides a non-metallic flame-retardant fire-resistant bite-proof optical cable chooses for use halogen-free low smoke material, when the conflagration breaing out, does not contain the fatal halogen gas of human body in the gas that the optical cable body burning produced, and the cigarette is few, to environment and human health's influence during the conflagration that significantly reduces.

Drawings

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

Detailed Description

The invention is further described with reference to the following specific drawings and examples.

The embodiment provides a layer-twisted filled type non-metal flame-retardant fireproof anti-bite optical cable comprising 36-core G652D optical fibers;

as shown in fig. 1, the loose tube 101 containing 6G 652D optical fibers has 6 pieces, surrounds the central GFRP reinforced core 102, and is twisted with gap-filling cable paste and SZ to form the cable core 1, the external extrusion material of the cable core is the fire-resistant layer 2 of thermoplastic low-smoke halogen-free ceramic polyolefin, the fire-resistant layer 2 is externally coated with the armor layer 3 formed by 4 arch FRP strips 301, the external extrusion coating of the armor layer 3 is the outer sheath 4, the outer sheath 4 is black rat-proof halogen-free low-smoke polyolefin, and the rat-proof agent is added.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the examples, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims

1. A non-metallic flame-retardant, fire-resistant, bite-resistant optical cable, comprising: the cable comprises an optical cable core (1), a fire-resistant layer (2), an armor layer (3) and an outer protective layer (4); the optical cable core (1) is arranged in the center of the optical cable, a fire-resistant layer (2) is extruded outside the optical cable core, an armor layer (3) is coated outside the fire-resistant layer (2), and an outer protective layer (4) is extruded outside the armor layer (3);

the armor layer (3) is coated on the periphery of the fire-resistant layer (2) by a plurality of arched FRP strips to form a cylindrical barrel-shaped structure with smooth and seamless surface.

2. The non-metallic flame retardant fire resistant bite-resistant optical cable of claim 1,

the flame retardant coating (2) is made of thermoplastic low-smoke halogen-free ceramic polyolefin.

3. The non-metallic flame retardant fire resistant bite-resistant optical cable of claim 1,

the outer protective layer (4) is made of ratproof halogen-free low-smoke polyolefin.