CN213815578U

CN213815578U - Fireproof cable

Info

Publication number: CN213815578U
Application number: CN202023302817.4U
Authority: CN
Inventors: 陆建峰; 张礼臣
Original assignee: Zhejiang Beirui Cable Technology Co ltd
Current assignee: Zhejiang Beirui Cable Technology Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-07-27
Anticipated expiration: 2030-12-31

Abstract

The utility model discloses a fireproof cable, which comprises a wire, the outside parcel of wire has the filling layer, the outside parcel of filling layer has interior protective sheath, the outside parcel of interior protective sheath has the third insulating layer, third insulating layer outside is provided with the insulating layer, the outside parcel of insulating layer has the fourth insulating layer, the outside parcel of fourth insulating layer has the armor, the outside parcel of armor has the flame retardant coating, the outside parcel of flame retardant coating has outer protective sheath. This fireproof cable, through setting up the filling layer, make the heat-resisting fire resistance of cable better, through setting up insulating layer and air cushion, the side has cushioned cable inner conductor, simultaneously because the unable burning of helium of inside packing, can play good flame retardant efficiency, through setting up the armor, make the cable not receive the destruction and the damage of external mechanical force, through the flame retardant coating that sets up mineral substance fire retardant material, make the cable generate the fire-retardant crust of one deck rapidly behind the contact flame, fire prevention effect is splendid.

Description

Fireproof cable

Technical Field

The utility model relates to the technical field of cables, especially, relate to a fireproof cable.

Background

Along with the development of economy in China, the scale and speed development of various building projects are not available before, and the requirements on electrical equipment are higher and higher. In recent years, there has been an increasing number of fires caused by electricity, among which fires caused by wire and cable have been a considerable proportion.

At present, cables used in all levels of markets have various types, different qualities and defects, and are poor in fireproof effect, so that a certain hidden danger is brought to safe fire fighting.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a fireproof cable has solved the problem of proposing in the above-mentioned background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a fireproof cable, includes the wire, the outside parcel of wire has the filling layer, the outside parcel of filling layer has interior protective sheath, the outside parcel of interior protective sheath has the third insulating layer, third insulating layer outside is provided with the insulating layer, the outside parcel of insulating layer has the fourth insulating layer, the outside parcel of fourth insulating layer has the armor, the outside parcel of armor has the flame retardant coating, the outside parcel of flame retardant coating has outer protective sheath.

Preferably, the wire includes conductor, first insulation layer, second insulating layer and metallic shield, the outside parcel of conductor has the first insulation layer, the first insulation layer is the special fluorine dragon material, the outside parcel of first insulation layer has the second insulating layer, the silica gel material is used to the second insulating layer, the outer parcel of second insulating layer has the metallic shield, the metallic shield is one deck copper wire mesh grid.

Preferably, the filling layer is a flame-retardant polypropylene filling.

Preferably, the inner protective sleeve is made of high-temperature-resistant insulating rubber.

Preferably, the third insulating layer is a fire-resistant plastic material.

Preferably, the heat-insulating layer is a high-temperature-resistant bubble film layer, an air cushion is arranged in the heat-insulating layer, the air cushion is in an annular array, the bubble film and the air cushion are both made of high-temperature-resistant materials, and helium is filled in the bubble film and the air cushion.

Preferably, the fourth insulating layer is made of a silica gel material.

Preferably, the armor inner ring and the armor outer ring are both provided with linings.

Preferably, the fireproof layer is made of a mineral fireproof material.

Preferably, the outer protective sleeve is made of high-temperature-resistant insulating rubber.

Compared with the prior art, the beneficial effects of the utility model are that: the fireproof cable is characterized in that a conductor is insulated and protected by arranging a first insulating layer and a second insulating layer, the conductor is isolated from an external electromagnetic field by arranging a metal shielding layer to prevent interference, the conductor is supported and protected by arranging a filling layer filled with flame-retardant polypropylene, the heat resistance and flame retardance of the cable are better, the conductor is further insulated and shielded by arranging an inner protective sleeve and a third insulating layer, the inner protective sleeve and the third insulating layer are both made of high-temperature-resistant materials, so that the cable can work in a high-temperature environment and have certain fireproof and flame-retardant properties, the heat-insulating layer and an air cushion are arranged, on one hand, the inner conductor of the cable is buffered to protect the safety of the inner conductor, and meanwhile, the helium filled in the cable cannot burn, when the flame burns to the heat-insulating layer, the oxygen concentration around the cable can be reduced, can play good flame retardant efficiency, through setting up the armor for the cable does not receive the destruction and the damage of external mechanical force, can also carry protection against rodents and termite to bite, through the flame retardant coating who sets up mineral matter fire-retardant material, makes the cable generate the fire-retardant crust of one deck rapidly after contact flame, makes flame unable pass through, loses lighting of naked light, and the cable inside will be difficult to continue to burn, has played fabulous fire prevention effect.

Drawings

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

FIG. 2 is an enlarged view of part A of the present invention;

fig. 3 is a schematic view of the structure of the wire of the present invention.

In the figure: 1 wire, 101 conductor, 102 first insulating layer, 103 second insulating layer, 104 metal shielding layer, 2 filling layer, 3 inner protective sleeve, 4 third insulating layer, 5 insulating layer, 6 air cushion, 7 fourth insulating layer, 8 armor, 9 fireproof layer and 10 outer protective sleeve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example (b): referring to fig. 1-3, a fireproof cable includes a conductor 1, the conductor 1 includes a conductor 101, a first insulating layer 102, a second insulating layer 103 and a metal shielding layer 104, the first insulating layer 102 is wrapped outside the conductor 101, the first insulating layer 102 is made of teflon, teflon has the characteristics of non-adhesion, heat resistance, sliding, moisture resistance, wear resistance, corrosion resistance and the like, has excellent thermal stability and mechanical wear resistance and electrical insulation performance, and is suitable for use under a high temperature condition, the second insulating layer 103 is wrapped outside the first insulating layer 102, the second insulating layer 103 is made of silica gel, the silica gel has the characteristics of oil resistance, high and low temperature resistance, acid and alkali corrosion resistance, and can protect the conductor 101, the metal shielding layer 104 is wrapped outside the second insulating layer 103, the metal shielding layer 104 is a copper wire mesh, and can shield an electromagnetic field, the outer portion of the conductor 1 is wrapped with a filling layer 2, the cable is characterized in that the filling layer 2 is made of flame-retardant polypropylene filler, so that the flame retardance of the cable is better, the outer part of the filling layer 2 is wrapped by the inner protective sleeve 3, the inner protective sleeve 3 is made of high-temperature-resistant insulating rubber, the outer part of the inner protective sleeve 3 is wrapped by the third insulating layer 4, the third insulating layer 4 is made of fireproof plastic materials and has a good flame-retardant effect, the outer part of the third insulating layer 4 is provided with the heat-insulating layer 5, the heat-insulating layer 5 is a high-temperature-resistant bubble film layer, the inner part of the heat-insulating layer 5 is provided with the air cushion 6, the air cushion 6 is in an annular array, the bubble film and the air cushion 6 are both made of high-temperature-resistant materials, helium is filled in the bubble film and the air cushion 6, the outer part of the heat-insulating layer 5 is wrapped by the fourth insulating layer 7, the fourth insulating layer 7 is made of silica gel, and the armor 8 is wrapped on the outer part of the fourth insulating layer 7 and can play a good protection role on the inner lead 1, the fire-resistant armor is characterized in that lining layers are arranged on the inner ring and the outer ring of the armor 8, a fire-resistant layer 9 wraps the outer portion of the armor 8, the fire-resistant layer 9 is made of mineral fire-resistant materials and can form a hard shell to resist fire when encountering fire, an outer protective sleeve 10 wraps the outer portion of the fire-resistant layer 9, and the outer protective sleeve 10 is made of high-temperature-resistant insulating rubber.

In summary, in the fireproof cable, the first insulating layer 102 and the second insulating layer 103 are arranged to insulate and protect the conductor 101, the metal shielding layer 104 is arranged to isolate the conductor 101 from an external electromagnetic field, so as to prevent interference, the filling layer 2 filled with the flame-retardant polypropylene is arranged to support and protect the conductor 1 and improve the heat and flame resistance of the cable, the inner protective sleeve 3 and the third insulating layer 4 are arranged to further insulate and shield the conductor 1, the inner protective sleeve 3 and the third insulating layer 4 are both made of high temperature resistant materials, so that the cable can work in a high temperature environment and has certain fireproof and flame-retardant properties, the heat-insulating layer 5 and the air cushion 6 are arranged to buffer the inner conductor 1 of the cable on the one hand, so as to protect the safety of the inner conductor 1, and the helium filled in the cable cannot burn, when flame burning to insulating layer 5, can reduce oxygen concentration on every side, can play good flame retardant efficiency, through setting up armor 8, make the cable not receive the destruction and the damage of external mechanical force, can also provide mouse and termite and bite, through the flame retardant coating 9 that sets up mineral matter fire retardant material, make the cable generate the fire-retardant crust of one deck rapidly behind the contact flame, make flame unable to pass through, lose the ignition of naked light, the cable inside will be difficult to continue the burning, fabulous fire prevention effect has been played.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a fireproof cable, includes wire (1), its characterized in that, wire (1) outside parcel has filling layer (2), filling layer (2) outside parcel has interior protective sheath (3), interior protective sheath (3) outside parcel has third insulating layer (4), third insulating layer (4) outside is provided with insulating layer (5), insulating layer (5) outside parcel has fourth insulating layer (7), fourth insulating layer (7) outside parcel has armor (8), armor (8) outside parcel has flame retardant coating (9), flame retardant coating (9) outside parcel has outer protective sheath (10).

2. A fireproof cable according to claim 1, wherein the conductor (1) comprises a conductor (101), a first insulating layer (102), a second insulating layer (103) and a metal shielding layer (104), the first insulating layer (102) is wrapped outside the conductor (101), the first insulating layer (102) is made of teflon, the second insulating layer (103) is wrapped outside the first insulating layer (102), the second insulating layer (103) is made of silica gel, the metal shielding layer (104) is wrapped outside the second insulating layer (103), and the metal shielding layer (104) is a braided copper wire mesh.

3. A fire-resistant cable according to claim 1, characterised in that said filler layer (2) is a fire-retardant polypropylene filler.

4. A fire-resistant cable according to claim 1, characterised in that said inner protective sheath (3) is a high temperature resistant insulating rubber.

5. A fire protection cable according to claim 1, characterized in that said third insulating layer (4) is of fire-resistant plastic material.

6. A fireproof cable according to claim 1, wherein the thermal insulation layer (5) is a high temperature resistant bubble film layer, an air cushion (6) is arranged inside the thermal insulation layer (5), the air cushion (6) is in a ring array, and both the bubble film and the air cushion (6) are made of high temperature resistant material and are filled with helium.

7. A fire-resistant cable according to claim 1, characterised in that said fourth insulating layer (7) is of silicone material.

8. A fire-resistant cable according to claim 1, characterised in that the armouring (8) inner and outer turns are provided with a lining.

9. A fire protection cable according to claim 1, characterized in that the fire protection layer (9) is made of a mineral fire protection material.

10. A fire-resistant cable according to claim 1, characterised in that said outer protective sheath (10) is made of a high temperature resistant insulating rubber.