CN214253942U

CN214253942U - Fireproof connecting wire

Info

Publication number: CN214253942U
Application number: CN202120131916.6U
Authority: CN
Inventors: 张明; 曾凡; 卢洋; 章书周
Original assignee: Micc Hefei Electric Co ltd
Current assignee: Micc Hefei Electric Co ltd
Priority date: 2021-01-19
Filing date: 2021-01-19
Publication date: 2021-09-21
Anticipated expiration: 2031-01-19

Abstract

The utility model discloses a fireproof connecting wire, which comprises a cable body, wherein the surface of the cable body is uniformly sheathed with a plurality of sectional type fire-retardant sleeves, dry powder is filled in the sectional type fire-retardant sleeves, the cable body comprises a copper conductor, the outer part of the copper conductor is wrapped with an inner insulating layer, the outer part of the inner insulating layer is wrapped with a heat-absorbing layer, the outer part of the heat-absorbing layer comprises a shielding layer, the outer part of the shielding layer is wrapped with an outer insulating layer, a plurality of heat dissipation holes are uniformly arranged in the heat-absorbing layer, the length of the heat dissipation holes is consistent with the length of the heat-absorbing layer, the utility model discloses an additional heat-absorbing layer is arranged, the heat generated by the copper conductor can be absorbed by the heat dissipation holes of the heat-absorbing layer, thereby the whole heat is reduced, by arranging the sectional type fire-retardant sleeves on the cable body, when the cable body is on fire, the sectional type fire-retardant sleeves are broken, at the moment, the surfaces of the cable body are scattered, thereby the dry powder is put out a fire, reduce the damage that the cable body received, avoid spreading of disaster, reduce the loss.

Description

Fireproof connecting wire

Technical Field

The utility model relates to a cable technical field, more specifically say, in particular to fire prevention connecting wire.

Background

Wire and cable refers to materials used for power, communication and related transmission applications, and is most commonly used in infrastructure for urban and rural construction. However, in many cases, intensive laying is employed for laying electric wires and cables, and electric wires and cables having high flame retardancy are required in places where people are intensive or important. With the higher and higher requirements of customers on the flame retardant performance of the flame retardant cable, the more and more complicated the structure of the flame retardant cable on the market is, the higher the cost is, and the price rises.

The existing electric wire and cable mainly comprise a wire core formed by processing sheath insulation by PVC plastic particles and twisting copper wires of various specifications, and the related processes are wide in category, from smelting of nonferrous metals, pressure processing, chemical technologies such as plastics, rubber and paint, textile technologies such as wrapping and weaving of fiber materials, wrapping of metal materials, longitudinal wrapping of metal strips, welding metal forming and processing processes and the like. At present, the connection wire used by general electric power equipment usually adopts a PVC insulated wire under the national standard GB/T5023 standard or JB/T8734 standard, and the insulation layer of the connection wire under the standard is exposed on the outer surface.

Because the insulating layer exposes outside, do not receive any protection, external environment's change direct influence insulating layer can lead to the fact the injury to the insulating layer, after long-time the use, can appear insulating properties and reduce or external factor causes phenomenons such as damage, accidents such as conflagration, electric leakage can be aroused, when ambient temperature promotes or circular telegram live time is longer, the insulating layer on cable surface receives the influence easily, become ageing hardening, arouse the spontaneous combustion because of high temperature even, cause the threat to masses' personal safety, can directly lead to economic loss even.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fire prevention connecting wire.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a fireproof connecting wire, includes the cable body, the even cover in cable body surface is equipped with a plurality of sectional type back-fire relief covers, and sectional type back-fire relief cover intussuseption is filled with the dry powder, the cable body includes copper conductor, and the outside cladding of copper conductor has an inner insulating layer, and the outside cladding of inner insulating layer has the heat-sink shell, and the heat-sink shell is outside including the shielding layer, and the outside cladding of shielding layer has an outer insulating layer, the inside a plurality of louvres that begin evenly of being of heat-sink shell, the length of louvre is unanimous with the length of heat-sink shell.

Preferably, the inner insulating layer and the outer insulating layer are both of thermoplastic elastic plastic structure.

Preferably, the heat absorbing layer is made of fireproof rubber.

Preferably, the shielding layer is a steel wire mesh structure.

Preferably, sectional type back-fire relief cover includes circle board and two glass dishes, and the ring recess has all been seted up at circle inboard wall both ends, the glass dish is through the fixed block of ring recess in the inside both ends position of circle board, and the through-hole has been seted up at glass dish surface middle part, and the glass dish is established on cable body surface through the through-hole cover.

Compared with the prior art, the utility model has the advantages of:

the utility model discloses an add the heat-sink shell, the louvre of heat-sink shell can absorb the heat that copper conductor produced to reduce its whole heat, through set up sectional type back-fire relief cover on the cable body, when the cable body is on fire, sectional type back-fire relief cover is broken, and the dry powder will spill on cable body surface this moment, thereby play the effect of putting out a fire, reduce the damage that the cable body received, avoid stretching of the disaster, reduce the loss.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a structural diagram of a fireproof connecting line of the present invention;

fig. 2 is a cross-sectional view of a fireproof connecting wire of the present invention;

fig. 3 is a sectional view of the segmented firestop sleeve of the present invention.

In the figure: the cable comprises a cable body 1, a copper wire conductor 11, an inner insulating layer 12, a heat absorbing layer 13, a shielding layer 14, an outer insulating layer 15, heat dissipation holes 16, a sectional type fire retardant sleeve 2, a glass disc 21, a through hole 22, a ring plate 23, a ring groove 24 and dry powder 25.

Detailed Description

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention can be more clearly and clearly defined.

Referring to fig. 1, fig. 2 and fig. 3 show, the utility model provides a fireproof connecting wire, including cable body 1, the even cover in cable body 1 surface is equipped with a plurality of sectional type back-fire relief cover 2, sectional type back-fire relief cover 2 intussuseption is filled with dry powder 25, cable body 1 includes copper conductor 11, the outside cladding of copper conductor 11 has internal insulation layer 12, the outside cladding of internal insulation layer 12 has heat-sink shell 13, heat-sink shell 13 is outside including shielding layer 14, the outside cladding of shielding layer 14 has external insulation layer 15, heat-sink shell 13 is inside to be and evenly begins to have a plurality of louvres 16, the length of louvre 16 is unanimous with heat-sink shell 13's length.

In this embodiment, the inner insulating layer 12 and the outer insulating layer 15 are both made of thermoplastic elastomer.

In this embodiment, the heat absorbing layer 13 is made of fireproof rubber.

In this embodiment, the shielding layer 14 is a steel wire mesh structure, and plays a role in shielding electric radiation.

In this embodiment, sectional type back-fire relief cover includes that circle plate 23 and two glass coils 21, and ring recess 24 has all been seted up at 23 inside wall both ends of circle plate, and glass coils 21 passes through the fixed block of ring recess 24 and is in the inside both ends position of circle plate 12, and through-hole 22 has been seted up at 21 surperficial middle parts of glass dish, and glass coils 21 overlaps through-hole 22 and establishes on 1 surface of cable body.

The working principle is as follows: the heat that 11 copper conductors of heat dissipation hole 16 through heat-sink shell 13 produced can be absorbed to reduce its whole heat, when the conflagration cable body was on fire, glass dish 21 was heated the breakage, and the dry powder will spill on cable body 1 surface this moment, thereby plays the effect of putting out a fire, reduces the damage that cable body 1 received.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, various changes and modifications can be made by the owner within the scope of the appended claims, and the protection scope of the present invention should not be exceeded by the claims.

Claims

1. The utility model provides a fire prevention connecting wire, includes the cable body, its characterized in that: the cable body surface evenly overlaps and is equipped with a plurality of sectional type back-fire relief covers, and sectional type back-fire relief intussuseption is filled with the dry powder, the cable body includes copper conductor, and the outside cladding of copper conductor has an internal insulation layer, and the outside cladding of internal insulation has the heat-sink shell, and the heat-sink shell is outside including the shielding layer, and the outside cladding of shielding layer has an external insulation layer, the inside a plurality of louvres that evenly begin of being of heat-sink shell, the length of louvre is unanimous with the length of heat-sink shell.

2. A fire-resistant joint line according to claim 1, characterised in that: the inner insulating layer and the outer insulating layer are both thermoplastic elastic plastic structures.

3. A fire-resistant joint line according to claim 1, characterised in that: the heat absorption layer is made of fireproof rubber.

4. A fire-resistant joint line according to claim 1, characterised in that: the shielding layer is of a steel wire mesh structure.

5. A fire-resistant joint line according to claim 1, characterised in that: sectional type back-fire relief cover includes circle board and two glass dishes, and the ring recess has all been seted up at circle inboard wall both ends, glass dish passes through the fixed block of ring recess and puts at the inside both ends of circle board, and the through-hole has been seted up at glass dish surperficial middle part, and glass dish passes through the through-hole cover and establishes on cable body surface.