CN220064455U

CN220064455U - Fire control is speedily carried out rescue work with high fire-retardant optical cable

Info

Publication number: CN220064455U
Application number: CN202321548869.0U
Authority: CN
Inventors: 韩永志; 王玉芹; 龚云凤; 李朋; 刘艳; 袁福; 王苏北
Original assignee: Jiangsu Huamai New Materials Co ltd
Current assignee: Jiangsu Huamai New Materials Co ltd
Priority date: 2023-06-17
Filing date: 2023-06-17
Publication date: 2023-11-21
Anticipated expiration: 2033-06-17

Abstract

The utility model discloses a high-flame-retardance optical cable for fire-fighting emergency, which comprises the following components: the optical fiber unit, fire-retardant cladding, first fire-retardant sheath, fire-retardant longitudinal wrapping layer, fire-retardant enhancement layer, tensile enhancement layer and the fire-retardant sheath of second, fire-retardant cladding is including wrapping the first mica tape in the optical fiber unit outside around the cladding, first fire-retardant sheath is concentric to be set up in fire-retardant outside around the cladding, fire-retardant longitudinal wrapping layer is including indulging the second mica tape in the first fire-retardant sheath outside of wrapping, fire-retardant enhancement layer sets up in fire-retardant outside of longitudinal wrapping layer, tensile enhancement layer sets up in the outside of fire-retardant enhancement layer, the fire-retardant sheath of second sets up in the outside of tensile enhancement layer. The high-flame-retardance optical cable for fire-fighting emergency can be used for multiple flame-retardance protection, so that the use of the cable in a fire-fighting emergency environment is met, the service life of the cable is prolonged, and the tensile strength layer is used for structural reinforcement so as to improve the adaptability to the environment.

Description

Fire control is speedily carried out rescue work with high fire-retardant optical cable

Technical Field

The utility model relates to the field of optical cables, in particular to a high-flame-retardance optical cable for fire-fighting emergency.

Background

In recent years, with the wide spread application of optical cables in the fields of the internet, cable television networks and the like, optical fiber users have begun to increase greatly. In the construction process of the optical fiber line, the surrounding environment is complex and changeable, so the requirement on the environment resistance of the optical cable is high.

Conventional optical cables adopt a traditional structural mode, and the flame retardant performance mainly depends on a surface flame retardant sheath. Under the fire-fighting emergency environment, the conventional optical cable surface flame-retardant sheath is easy to damage and lose flame-retardant effect due to the complexity and the variability of the environment, and the stable operation under the corresponding environment cannot be met, so that signal interruption is often caused, and great trouble is generated to rescue work.

Disclosure of Invention

The utility model aims to provide a high-flame-retardance optical cable for fire-fighting emergency, which improves the adaptability to the environment, in particular the tensile property and the flame-retardance effect.

To achieve the purpose, the utility model adopts the following technical scheme:

a high flame retardant fiber optic cable for fire rescue, comprising: the optical fiber unit, fire-retardant cladding, first fire-retardant sheath, fire-retardant longitudinal wrapping layer, fire-retardant enhancement layer, tensile enhancement layer and the fire-retardant sheath of second, fire-retardant cladding is including wrapping the first mica tape in the optical fiber unit outside around the cladding, first fire-retardant sheath is concentric to be set up in fire-retardant outside around the cladding, fire-retardant longitudinal wrapping layer is including indulging the second mica tape in the first fire-retardant sheath outside of wrapping, fire-retardant enhancement layer sets up in fire-retardant outside of longitudinal wrapping layer, tensile enhancement layer sets up in the outside of fire-retardant enhancement layer, the fire-retardant sheath of second sets up in the outside of tensile enhancement layer.

Wherein, the optical fiber unit comprises a plurality of optical fibers and a tight cladding arranged on the surface of the optical fibers.

Wherein, the tight cladding, the first flame retardant sheath and the second flame retardant sheath respectively adopt flame retardant LSZH sheath.

Wherein, tensile enhancement layer adopts the aramid yarn of concentric parcel in the fire-retardant enhancement layer outside.

The flame-retardant reinforcing layer comprises a plurality of third flame-retardant sheaths which are distributed on the outer side surface of the flame-retardant longitudinal wrapping layer in an annular array mode and extend along the length direction of the flame-retardant longitudinal wrapping layer.

Wherein the third flame retardant sheath is filled with a flame retardant.

The utility model has the beneficial effects that: the utility model provides a fire control is high fire-retardant optical cable for emergency, utilize fire-retardant cladding, first fire-retardant sheath, fire-retardant cladding, fire-retardant enhancement layer and the fire-retardant sheath of second to cooperate, carry out multiple fire-retardant protection, promoted flame retardant efficiency greatly to satisfy the use under the fire-fighting emergency environment, increase of service life, and utilize tensile enhancement layer to carry out the reinforcing of structure, with the promotion to the adaptability of environment, flexible good moreover is difficult for breaking in the work progress.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

fig. 2 is a partial enlarged view of a portion a in fig. 1.

Detailed Description

The technical solution of the present utility model will be further described with reference to fig. 1 to 2 by means of specific embodiments.

The high flame retardant optical cable for fire emergency as shown in fig. 1 comprises: in this embodiment, the optical fiber units include a plurality of optical fibers 1 and a tight cladding 2 arranged on the surface of the optical fibers, the optical fibers 1 adopt bending-resistant optical fibers 1, and the first heavy flame-retardant protection is performed through the tight cladding 2.

The flame-retardant wrapping layer 3 comprises a first mica tape wrapped on the outer side of the optical fiber unit, and the mica tape has good heat insulation and flame retardance effects and provides a second flame-retardant protection. The first flame-retardant sheath 4 is concentrically arranged on the outer side of the flame-retardant wrapping layer 3, so that the structural stability of the flame-retardant wrapping layer 3 can be improved, and third flame-retardant protection can be provided.

In this embodiment, the flame retardant longitudinal wrapping 5 includes a second mica tape longitudinally wrapped outside the first flame retardant sheath 4, and a fourth flame retardant protection is provided by the second mica tape. The flame-retardant reinforcing layer is arranged on the outer side of the flame-retardant longitudinal wrapping layer 5 to provide a fifth flame-retardant protection.

As shown in fig. 2, the flame retardant reinforcing layer includes a plurality of third flame retardant sheaths 9 distributed on the outer side surface of the flame retardant longitudinal cladding 5 in a ring-shaped array and extending along the length direction of the flame retardant longitudinal cladding 5, and the adjacent third flame retardant sheaths 9 are closely arranged and have small intervals, so that protection of the flame retardant longitudinal cladding 5 can be realized. In this embodiment, the third flame retardant sheath 9 is filled with the flame retardant 8, and after the third flame retardant sheath 9 is damaged, the flame retardant 8 is exposed, so as to further improve the flame retardant effect. The flame retardant 8 is an environment-friendly and safe flame retardant so as to meet the requirement of use in a fire-fighting emergency environment.

The tensile reinforcement layer 6 is arranged on the outer side of the flame-retardant reinforcement layer, and in the embodiment, the tensile reinforcement layer 6 is made of aramid yarn concentrically wrapped on the outer side of the flame-retardant reinforcement layer, so that the tensile strength is high, and the problem of breakage in the fire-fighting emergency process is solved.

The second flame retardant sheath 7 is arranged on the outer side of the tensile reinforcement layer 6, so that the tensile reinforcement layer 6 can be protected, and a sixth flame retardant protection can be provided. In this embodiment, the tight cladding 2, the third flame retardant sheath 9, the first flame retardant sheath 4 and the second flame retardant sheath 7 respectively adopt flame retardant LSZH sheaths, and adopt low smoke halogen-free flame retardant materials, so that the use is safer.

The foregoing is merely exemplary of the present utility model, and those skilled in the art should not be considered as limiting the utility model, since modifications may be made in the specific embodiments and application scope of the utility model in light of the teachings of the present utility model.

Claims

1. The utility model provides a fire control is high fire-retardant optical cable for emergency and repair which characterized in that includes: the optical fiber unit, fire-retardant cladding, first fire-retardant sheath, fire-retardant longitudinal wrapping layer, fire-retardant enhancement layer, tensile enhancement layer and the fire-retardant sheath of second, fire-retardant cladding is including wrapping the first mica tape in the optical fiber unit outside around the cladding, first fire-retardant sheath is concentric to be set up in fire-retardant outside around the cladding, fire-retardant longitudinal wrapping layer is including indulging the second mica tape in the first fire-retardant sheath outside of wrapping, fire-retardant enhancement layer sets up in fire-retardant outside of longitudinal wrapping layer, tensile enhancement layer sets up in the outside of fire-retardant enhancement layer, the fire-retardant sheath of second sets up in the outside of tensile enhancement layer.

2. The fire-fighting high-fire-retardant optical cable according to claim 1, wherein the optical fiber unit includes a plurality of optical fibers and a cladding layer provided on the surface of the optical fibers.

3. The fire-fighting high-fire-retardant optical cable according to claim 2, wherein the tight cladding, the first fire-retardant sheath and the second fire-retardant sheath are respectively fire-retardant LSZH sheaths.

4. The fire-fighting high-fire-retardant optical cable according to claim 1, wherein the tensile reinforcement layer is made of aramid yarn concentrically wrapped outside the fire-retardant reinforcement layer.

5. The high-flame-retardant optical cable for fire emergency according to claim 1, wherein the flame-retardant reinforcing layer comprises a plurality of third flame-retardant sheaths distributed on the outer side surface of the flame-retardant longitudinal wrapping layer in an annular array and extending along the length direction of the flame-retardant longitudinal wrapping layer.

6. The fire-fighting high-fire-retardant optical cable according to claim 5, wherein the third flame-retardant sheath is filled with a fire retardant.