CN212322657U

CN212322657U - Fireproof flame-retardant crosslinked polyvinyl chloride insulated cable

Info

Publication number: CN212322657U
Application number: CN202020996561.2U
Authority: CN
Inventors: 李松树; 程斌发
Original assignee: Tianjin Zhengbiao Jinda Cable Group Co ltd
Current assignee: Tianjin Zhengbiao Jinda Cable Group Co ltd
Priority date: 2020-06-04
Filing date: 2020-06-04
Publication date: 2021-01-08
Anticipated expiration: 2030-06-04

Abstract

The utility model relates to a fire prevention fire-retardant type crosslinked polyvinyl chloride insulated cable, including a plurality of cores of leading, insulating layer, oversheath of leading the core around the package, its characterized in that, be equipped with assorted cutting and slot on the insulating layer, it is adjacent lead the core through inciting somebody to action on the insulating layer the cutting inserts the mode of slot links to each other, the insulating layer outside has an isolation layer one around the package, the insulating layer with space packing between the isolation layer one has fire prevention daub, an isolation layer outside has the shielding layer around the package, the shielding layer outside has isolation layer two around the package, the isolation layer outside has the oxygen layer of separating around the package, it has a plurality of strengthening ribs to separate the embedded outside of oxygen layer, the strengthening rib is kept away from two sides of isolation layer have the armour layer around the package, the armour layer with the space packing between the oxygen layer has the fire. The utility model discloses a cable intensity is good, and fire prevention flame retardant efficiency is good.

Description

Fireproof flame-retardant crosslinked polyvinyl chloride insulated cable

Technical Field

The utility model relates to a fireproof cable field especially relates to a fire prevention fire-retardant type crosslinked polyvinyl chloride insulated cable.

Background

The wire and cable industry is an important matching industry for the economic construction of China and is widely applied to various fields of the national economy; the electric wire and the cable are essential basic equipment for transmitting electric energy, transmitting information and manufacturing various motors, electric appliances, instruments, automobiles, machine tools and other equipment, but most of the cables used at present have poor fireproof performance and common strength, and the safety of the cables is difficult to guarantee.

Disclosure of Invention

The utility model discloses aim at solving prior art not enough, and provide a fire prevention fire-retardant type crosslinked polyvinyl chloride insulated cable.

The utility model discloses a realize above-mentioned purpose, adopt following technical scheme: a fireproof flame-retardant crosslinked polyvinyl chloride insulated cable comprises a plurality of guide cores, an insulating layer wrapping the guide cores, and an outer sheath, it is characterized in that the insulating layer is provided with a matching inserting strip and a slot, the adjacent guide cores are connected in a way of inserting the inserting strip on the insulating layer into the slot, a first isolating layer is wound on the outer side of the insulating layer, fireproof mortar is filled in a gap between the insulating layer and the first isolating layer, a shielding layer is wound on the outer side of the first isolating layer, a second isolating layer is wound on the outer side of the shielding layer, an oxygen isolating layer is wound on the outer side of the isolating layer, a plurality of reinforcing ribs are embedded in the outer side of the oxygen isolation layer, armor layers are wound on the sides, away from the two isolating layers, of the reinforcing ribs, the outer sheath is wrapped on the outer side of the armor layer, and a flame retardant is filled in a gap between the armor layer and the oxygen isolation layer.

In particular, the outer side of the outer sheath is sprayed with fireproof paint.

Particularly, the first isolation layer and the second isolation layer are woven by fireproof glass ribbons.

In particular, the shielding layer is woven by a copper strip.

In particular, the armor layer is woven from an aluminum tape.

The utility model has the advantages that: the utility model discloses a set up slot, cutting, fire prevention daub, isolation layer one, isolation layer two, fire retardant, separate oxygen layer, strengthening rib, armour layer for the intensity of cable is good, and fire prevention flame retardant efficiency is good.

Drawings

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

FIG. 2 is a schematic view of the slot and the insert of the present invention;

in the figure: 1-a guide core; 2-an insulating layer; 3-cutting; 4-fireproof daub; 5, isolating the layer I; 6-a shielding layer; 7-a second isolating layer; 8-oxygen barrier layer; 9-reinforcing ribs; 10-a flame retardant; 11-armor layer; 12-an outer sheath; 13-a slot;

the following detailed description will be made in conjunction with embodiments of the present invention with reference to the accompanying drawings.

Detailed Description

The invention will be further explained with reference to the following figures and examples:

as shown in fig. 1-2, a fireproof flame-retardant crosslinked polyvinyl chloride insulated cable comprises a plurality of conductive cores 1, an insulating layer 2 wrapping the conductive cores 1, and an outer sheath 12, wherein the insulating layer 2 is provided with an insertion strip 3 and an insertion slot 13 which are matched, the adjacent conductive cores 1 are connected by inserting the insertion strip 3 on the insulating layer 2 into the insertion slot 13, a first insulating layer 5 is wrapped on the outer side of the insulating layer 2, a gap between the insulating layer 2 and the first insulating layer 5 is filled with fireproof mastic 4, a shielding layer 6 is wrapped on the outer side of the first insulating layer 5, a second insulating layer 7 is wrapped on the outer side of the shielding layer 6, an oxygen-insulating layer 8 is wrapped on the outer side of the second insulating layer 7, a plurality of reinforcing ribs 9 are embedded in the outer side of the oxygen-insulating layer 8, an armor layer 11 is arranged on the side of the reinforcing ribs 9 away from the second insulating layer 7, and the outer sheath 12 is wrapped on the outer, and a fire retardant 10 is filled in a gap between the armor layer 11 and the oxygen isolation layer 8.

In particular, the outer side of the outer sheath 12 is sprayed with a fireproof paint.

Particularly, the first isolation layer 5 and the second isolation layer 7 are woven by fireproof glass ribbons.

In particular, the shielding layer 6 is woven from copper tape.

In particular, the armor layer 11 is woven from an aluminum tape.

The plurality of guide cores 1 of the utility model are connected in a way that the inserting strips 3 on the insulating layer 2 are inserted into the inserting grooves 13, so that the insulating layers 2 on the plurality of guide cores 1 in the cable are convenient to be connected together; meanwhile, the fireproof daub 4, the first isolation layer 5 and the second isolation layer 7 which are woven by fireproof glass ribbons, the oxygen isolation layer 8 and the fire retardant 10 are arranged in the cable, and the fireproof coating is sprayed on the outer side of the outer sheath 12, so that the cable can be subjected to multi-layer fireproof setting, and the fireproof and fire-retardant effects are good; in addition, the arrangement of the reinforcing ribs 9 and the armor layers 11 can increase the strength of the cable.

The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above embodiments, and various improvements made by the method concept and technical solution of the present invention or directly applied to other occasions without improvement are all within the protection scope of the present invention.

Claims

1. The utility model provides a fire prevention fire-retardant type crosslinked polyvinyl chloride insulated cable, includes a plurality of lead core (1), insulating layer (2), oversheath (12) of leading core (1) around the package, its characterized in that, be equipped with assorted cutting (3) and slot (13) on insulating layer (2), it is adjacent lead core (1) through with on insulating layer (2) cutting (3) insert the mode of slot (13) links to each other, insulating layer (2) outside is around having isolation layer (5), insulating layer (2) with the space between isolation layer (5) is filled has fire prevention clay (4), isolation layer (5) outside is around having shielding layer (6), shielding layer (6) outside is around having isolation layer two (7), isolation layer two (7) outside is around having oxygen layer (8), it has a plurality of strengthening ribs (9) to separate the embedding of oxygen layer (8) outside, an armor layer (11) is wound on one side, away from the second isolation layer (7), of the reinforcing rib (9), the outer sheath (12) is wound on the outer side of the armor layer (11), and a flame retardant (10) is filled in a gap between the armor layer (11) and the oxygen isolation layer (8).

2. The flame-retardant crosslinked pvc insulated cable according to claim 1, wherein a fire retardant coating is sprayed on the outside of said outer sheath (12).

3. The fire-retardant crosslinked pvc insulated cable according to claim 2, wherein said first insulating layer (5) and said second insulating layer (7) are woven from fire-retardant glass ribbons.

4. The flame retardant crosslinked pvc insulated cable according to claim 3, wherein the shielding layer (6) is braided by copper tape.

5. The flame retardant crosslinked polyvinyl chloride insulated cable according to claim 4, wherein the armor layer (11) is woven from an aluminum tape.