CN215342012U

CN215342012U - Flexible fireproof cable

Info

Publication number: CN215342012U
Application number: CN202120713812.6U
Authority: CN
Inventors: 臧文丙; 宋敬涛; 王雁磊
Original assignee: Guangdong Huayang Cable Industry Co ltd
Current assignee: Guangdong Huayang Cable Industry Co ltd
Priority date: 2021-04-08
Filing date: 2021-04-08
Publication date: 2021-12-28
Anticipated expiration: 2031-04-08

Abstract

The utility model discloses a flexible fireproof cable, relates to the technical field of power transmission, and aims to solve the problem that the existing cable is poor in heat resistance. The utility model provides a flexible fireproof cable, includes electric core, the outside of electric core is provided with metal casing, the outside one side that is located metal casing inside of electric core is provided with fire-retardant filler, metal casing's outside is provided with the metal frame, the outside of metal frame is provided with waterproof ventilated membrane, waterproof ventilated membrane's outside is provided with the wearing layer, the outside of wearing layer is provided with the metal protective layer, the outside of metal protective layer is provided with the wear-resisting rubber cover, the diameter of electric core is forty millimeters, metal casing's thickness is four millimeters, the thickness of metal frame is six millimeters, the thickness of waterproof ventilated membrane is a millimeter, the thickness of wearing layer is three millimeters.

Description

Flexible fireproof cable

Technical Field

The utility model relates to the technical field of power transmission, in particular to a flexible fireproof cable.

Background

Cables, typically rope-like cables made by stranding several or several groups of conductors, each group of conductors being insulated from each other and often twisted around a center, and being entirely surrounded by a highly insulating covering, have characteristics of internal current conduction and external insulation, and are manufactured in a manner completely different from that of most electromechanical products.

However, the existing cable generates larger heat in the using process, the conventional insulating layer is poor in heat resistance and inflammable after being subjected to continuous high temperature, and therefore the existing requirements are not met, and the flexible fireproof cable is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a flexible fireproof cable to solve the problem of poor heat resistance of the cable in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a flexible fireproof cable, includes electric core, the outside of electric core is provided with metal casing, the outside one side that is located metal casing inside of electric core is provided with fire-retardant filler, metal casing's outside is provided with the metal frame, the outside of metal frame is provided with waterproof ventilated membrane, the outside of waterproof ventilated membrane is provided with the wearing layer, the outside of wearing layer is provided with the metal protective layer, the outside of metal protective layer is provided with wear-resisting rubber sleeve, the diameter of electric core is forty millimeters, metal casing's thickness is four millimeters, the thickness of metal frame is six millimeters, the thickness of waterproof ventilated membrane is a millimeter, the thickness of wearing layer is three millimeters.

Preferably, the metal casing is provided with a plurality of bumps and grooves which are uniformly distributed along the ring shape, the number of the bumps and the number of the grooves are respectively three, and the bumps, the grooves and the metal casing are of an integrally formed structure.

Preferably, the projection and the groove are matched.

Preferably, fixed block and stopper along annular evenly distributed are seted up to inside one side of metal frame, fixed block and stopper respectively are provided with threely, and fixed block and stopper and metal frame be the integrated into one piece structure, stopper and recess looks adaptation, the outside one side of fixed block is provided with the spacing groove, and spacing groove and fixed block be the integrated into one piece structure, spacing groove and lug looks adaptation.

Preferably, the thickness of the metal protective layer is three millimeters.

Preferably, the thickness of the wear-resistant rubber sleeve is ten millimeters.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the metal shell is arranged outside the battery core, the metal shell is made of hexagonal copper, the hexagon has better stability, the copper ductility is good, the heat conductivity and the electric conductivity are high, the metal shell can be recycled for multiple times without damaging the mechanical property of the metal shell, the honeycomb structure is formed by the metal shells, so that the whole structure of the cable is supported, the cable has flexibility due to the ductility of the copper, the cable is not easy to damage when being bent, and the transportation and the installation are convenient.

2. According to the utility model, the flame-retardant filler is arranged in the metal shell, the flame-retardant filler is glass fiber, and the glass fiber is an inorganic non-metallic material with excellent performance, and has the advantages of various varieties, good insulativity, strong heat resistance, good corrosion resistance and high mechanical strength, so that the flame retardance and the fire resistance of the cable are improved.

3. The metal casing is provided with the convex blocks and the grooves which are uniformly distributed along the ring shape on the outer portion, the convex blocks, the grooves and the metal casing are of an integrally formed structure, so that the metal casing is more stably connected, the metal frame is arranged on the outer portion of the metal casing, the fixed blocks and the limiting blocks which are uniformly distributed along the ring shape are arranged in the metal frame, the fixed blocks, the limiting blocks and the metal frame are of an integrally formed structure, the limiting grooves are formed in one side of the outer portion of the fixed blocks, the limiting grooves are matched with the convex blocks, the limiting blocks are matched with the grooves, and the metal casing and the metal frame are more stably connected.

4. According to the utility model, the waterproof breathable film is arranged outside the metal frame, and is a high-molecular compound formed by polymerizing tetrafluoroethylene, so that the cable has the characteristics of excellent chemical stability, corrosion resistance, high temperature resistance and the like, and the overall fireproof and heat-resistant capability of the cable is improved.

Drawings

FIG. 1 is an overall perspective view of the present invention;

FIG. 2 is a schematic view of the overall internal structure of the present invention;

FIG. 3 is an enlarged view of a portion of the area A of FIG. 2 according to the present invention;

fig. 4 is a partially enlarged view of the area B in fig. 2 according to the present invention.

In the figure: 1. an electric core; 2. a flame retardant filler; 3. a metal housing; 4. a metal frame; 5. a waterproof breathable film; 6. a wear layer; 7. a metal protective layer; 8. a wear-resistant rubber sleeve; 9. a fixed block; 10. a limiting groove; 11. a bump; 12. a groove; 13. and a limiting block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-4, an embodiment of the present invention is shown: a flexible fireproof cable comprises an electric core 1, a metal shell 3 is arranged outside the electric core 1, one side of the outside of the electric core 1, which is positioned inside the metal shell 3, is provided with a flame-retardant filler 2, a metal frame 4 is arranged outside the metal shell 3, a waterproof breathable film 5 is arranged outside the metal frame 4, a wear-resistant layer 6 is arranged outside the waterproof breathable film 5, a metal protective layer 7 is arranged outside the wear-resistant layer 6, a wear-resistant rubber sleeve 8 is arranged outside the metal protective layer 7, the diameter of the electric core 1 is forty millimeters, the thickness of the metal shell 3 is four millimeters, the thickness of the metal frame 4 is six millimeters, the thickness of the waterproof breathable film 5 is one millimeter, the thickness of the wear-resistant layer 6 is three millimeters, the metal shell 3 is hexagonal copper, the hexagon has better stability, the copper ductility is good, the heat conductivity and the electric conductivity are high, and the flexible fireproof cable can be repeatedly recycled without damaging the mechanical property, the flame-retardant filler 2 is glass fiber which is an inorganic non-metallic material with excellent performance and has the advantages of good insulativity, strong heat resistance, good corrosion resistance and high mechanical strength, so that the flame retardance and fire resistance of the cable are improved.

Further, lug 11 and recess 12 along annular evenly distributed are seted up to metal casing 3's outside, and lug 11 and recess 12 respectively are provided with threely, and lug 11 and recess 12 and metal casing 3 be the integrated into one piece structure, constitute honeycomb through a plurality of metal casing 3 to play the supporting role to the overall structure of cable, make the cable have the flexibility through the characteristic of copper ductility, thereby make the cable difficult damage when crooked.

Further, the protrusions 11 and the grooves 12 are adapted to make the connection of the metal housings 3 to each other more stable.

Further, fixed block 9 and stopper 13 along annular evenly distributed are seted up to inside one side of metal frame 4, fixed block 9 and stopper 13 respectively are provided with threely, and fixed block 9 and stopper 13 are the integrated into one piece structure with metal frame 4, stopper 13 and recess 12 looks adaptation, the outside one side of fixed block 9 is provided with spacing groove 10, and spacing groove 10 is the integrated into one piece structure with fixed block 9,

spacing groove

10 and 11 looks adaptations of lug, lug 11 and the recess 12 of 3 outside settings of metal casing make metal casing 3's connection more stable.

Further, the thickness of the metal protective layer is three millimeters, and the metal protective layer 7 is made of a steel material.

Further, the thickness of wear-resisting rubber sleeve 8 is ten millimeters, and wear-resisting rubber sleeve 8 is whole to be protected the cable, improves the wearability of cable simultaneously.

The working principle is as follows: when in use, the metal shell 3 is arranged outside the electric core 1, the metal shell 3 is made of hexagonal copper, the hexagon has better stability, the copper ductility is good, the heat conductivity and the electric conductivity are high, the metal shell can be recycled for many times without damaging the mechanical property, the honeycomb structure is formed by the plurality of metal shells 3, so that the whole structure of the cable is supported, the cable has flexibility through the copper ductility characteristic, so that the cable is not easy to damage when being bent, and the transportation and the installation are convenient, the flame-retardant filler 2 is arranged inside the metal shell 3, the flame-retardant filler 2 is glass fiber, the glass fiber is an inorganic non-metal material with excellent performance, and the cable has various varieties, and has the advantages of good insulativity, strong heat resistance, good corrosion resistance and high mechanical strength, so that the flame retardance of the cable is improved, and the lug 11 and the groove 12 arranged outside the metal shell 3 ensure that the connection of the metal shell 3 is more stable, fixed block 9 and stopper 13 that the inside of metal frame 4 set up, one side of fixed block 9 outside is provided with spacing groove 10, make metal casing 3 more stable with metal frame 4's connection, metal frame 4's outside is provided with waterproof ventilated membrane 5, waterproof ventilated membrane 5 is by tetrafluoroethylene polymer compound through polymerization, good chemical stability has, corrosion resistance, high temperature resistance isotatic characteristic, with this holistic fire prevention heat-resisting ability of improvement cable, waterproof ventilated membrane 5's outside is provided with wearing layer 6, wearing layer 6's outside is provided with metal protection layer 7, metal protection layer 7 uses the steel material to make, metal protection layer 7's outside is provided with wear-resisting rubber sleeve 8, wear-resisting rubber sleeve 8 protects the cable is whole, improve the wearability of cable simultaneously.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a flexible fireproof cable, includes electric core (1), its characterized in that: the outside of electric core (1) is provided with metal casing (3), the outside one side that is located metal casing (3) inside of electric core (1) outside is provided with fire-retardant filler (2), the outside of metal casing (3) is provided with metal frame (4), the outside of metal frame (4) is provided with waterproof ventilated membrane (5), the outside of waterproof ventilated membrane (5) is provided with wearing layer (6), the outside of wearing layer (6) is provided with metal protective layer (7), the outside of metal protective layer (7) is provided with wear-resisting rubber sleeve (8), the diameter of electric core (1) is forty millimeters, the thickness of metal casing (3) is four millimeters, the thickness of metal frame (4) is six millimeters, the thickness of waterproof ventilated membrane (5) is one millimeter, the thickness of wearing layer (6) is three millimeters.

2. A flexible fire-resistant cable according to claim 1, wherein: the metal shell (3) is externally provided with a convex block (11) and a groove (12) which are uniformly distributed along the ring shape, the convex block (11) and the groove (12) are respectively provided with three parts, and the convex block (11), the groove (12) and the metal shell (3) are of an integrally formed structure.

3. A flexible fire-resistant cable according to claim 2, wherein: the projection (11) is matched with the groove (12).

4. A flexible fire-resistant cable according to claim 2, wherein: fixed block (9) and stopper (13) along annular evenly distributed are seted up to inside one side of metal frame (4), fixed block (9) and stopper (13) respectively are provided with threely, and fixed block (9) and stopper (13) and metal frame (4) be the integrated into one piece structure, stopper (13) and recess (12) looks adaptation, the outside one side of fixed block (9) is provided with spacing groove (10), and spacing groove (10) and fixed block (9) be the integrated into one piece structure, spacing groove (10) and lug (11) looks adaptation.

5. A flexible fire-resistant cable according to claim 1, wherein: the thickness of the metal protective layer is three millimeters.

6. A flexible fire-resistant cable according to claim 1, wherein: the thickness of the wear-resistant rubber sleeve (8) is ten millimeters.