CN210378531U

CN210378531U - Environment-friendly fireproof flexible mineral insulated cable

Info

Publication number: CN210378531U
Application number: CN201921639497.6U
Authority: CN
Inventors: 蔡穗城
Original assignee: Guangdong Yongyi Zhujiang Cable Co Ltd
Current assignee: Guangdong Yongyi Zhujiang Cable Co Ltd
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2020-04-21
Anticipated expiration: 2029-09-27

Abstract

The utility model discloses an environmental protection fire prevention flexible mineral substance insulated cable has solved current environmental protection fire prevention flexible mineral substance insulated cable, though adopt mica tape and fire-retardant insulating material to improve the insulating function of putting a fire of cable, can't improve the self intensity of cable to let the cable can't be in the problem of long-term use in adverse circumstances, it includes first copper wire, the gum cover has been cup jointed to first copper wire outside, and the gum cover outside is fixed with the mineral substance band through fixed subassembly, and the mineral substance band outside is fixed with the protection subassembly, fixed subassembly includes recess, mica tape, cable core, flexible baffle, spacing hole, second copper wire and filling layer; the utility model discloses simple structure, convenient to use adopts the protection subassembly to let the cable have good fire-retardant and insulating safeguard function of fire prevention to self bearing capacity, impact resistance and tensile strength also obtain improving, thereby make the cable can use in adverse circumstances for a long time.

Description

Environment-friendly fireproof flexible mineral insulated cable

Technical Field

The utility model relates to the technical field of cables, specifically a flexible mineral insulated cable of environmental protection fire prevention.

Background

Although the wire and cable industry is a supporting industry, the wire and cable industry occupies the production value of 1/4 in the Chinese electrical industry, the wire and cable has a plurality of product types and a wide application range, relates to the industries of electric power, building, communication, manufacturing and the like, and is closely related to each department of national economy, the insulativity and the flame retardance are important working performance of the cable, the mineral insulated cable is widely applied at present in order to meet the requirement that the cable is stable in insulativity and flame retardance under severe working environment, the conventional environment-friendly fireproof flexible mineral insulated cable generally adopts a mica tape and a flame-retardant insulating material on a basic cable to improve the fire-releasing insulating function of the cable, but the mica tape and the flame-retardant insulating material have weak structural strength and cannot improve the self strength of the cable, so the cable cannot be used in severe environment for a long time.

Therefore, how to design an environment-friendly fireproof flexible mineral insulated cable becomes a problem to be solved currently.

SUMMERY OF THE UTILITY MODEL

To the above situation, for overcoming prior art's defect, the utility model provides an environmental protection flexible mineral substance insulated cable of preventing fires, the effectual current environmental protection flexible mineral substance insulated cable of preventing fires that has solved adopts mica tape and fire-retardant insulating material to improve the insulating function of putting on fire of cable, nevertheless can't improve the self intensity of cable to let the problem of cable can't use in adverse circumstances for a long time.

In order to achieve the above object, the utility model provides a following technical scheme: the wire harness comprises a first steel wire, wherein a rubber sleeve is sleeved outside the first steel wire, a mineral belt is fixed outside the rubber sleeve through a fixing component, and a protection component is fixed outside the mineral belt;

fixed subassembly includes recess, mica tape, cable core, flexible baffle, spacing hole, second copper wire and filling layer, and the gum cover outside all sets up flutedly all around, and there is the mica tape outside the gum cover through groove connection, is fixed with the cable core between the mica tape is inside, and the gum cover outside lies in all to be fixed with flexible baffle between the mica tape outside, and spacing hole has been seted up to the outside one side of flexible baffle, is fixed with the second copper wire between the spacing downthehole portion, and it has the filling layer to fill between the mineral substance band is inside and the mica tape is outside.

Preferably, the protection component comprises a waterproof layer, a copper sheath, a heat-resistant layer, a fireproof layer, an outer sheath and an antioxidant coating, the waterproof layer is sleeved outside the mineral tape, the copper sheath is sleeved outside the waterproof layer, the heat-resistant layer is sleeved outside the copper sheath, the fireproof layer is sleeved outside the heat-resistant layer, the outer sheath is sleeved outside the fireproof layer, and the antioxidant coating is coated outside the outer sheath.

Preferably, the fire-proof layer is made of a flame-retardant fiber material.

Preferably, the cable core is made of a copper material, and the cable core is formed by twisting a plurality of strands of copper wires.

Preferably, the waterproof layer is made of a PE waterproof material.

Preferably, the outer sheath is made of halogen-free low-smoke flame-retardant plastic materials.

The utility model discloses simple structure, convenient to use adopts the protection subassembly to let the cable have good fire-retardant and insulating safeguard function of fire prevention to self bearing capacity, impact resistance and tensile strength also obtain improving, thereby make the cable can use in adverse circumstances for a long time.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

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

FIG. 2 is a schematic view of the installation of the flexible partition of the present invention;

FIG. 3 is an enlarged view of a portion A of FIG. 2;

reference numbers in the figures: 1. a first steel wire; 2. a rubber sleeve; 3. a fixing assembly; 4. a groove; 5. mica tapes; 6. a cable core; 7. a flexible separator; 8. a limiting hole; 9. a second steel wire; 10. a filling layer; 11. mineral tape; 12. a protection component; 13. a waterproof layer; 14. a copper sheath; 15. a heat-resistant layer; 16. a fire barrier layer; 17. an outer sheath; 18. and (4) an anti-oxidation coating.

Detailed Description

The following describes the present invention in further detail with reference to the accompanying fig. 1-3.

In the first embodiment, as shown in fig. 1, 2 and 3, the present invention includes a first steel wire 1, a rubber sleeve 2 is sleeved outside the first steel wire 1, a mineral tape 11 is fixed outside the rubber sleeve 2 through a fixing component 3, a protective component 12 is fixed outside the mineral tape 11, and the mineral tape 11 can be used for fixing a coated mica tape 5;

the fixing component 3 comprises a groove 4, a mica tape 5, a cable core 6, a flexible clapboard 7, a limiting hole 8, a second steel wire 9 and a filling layer 10, the groove 4 is formed on the periphery of the outside of the rubber sleeve 2, the groove 4 is adopted to facilitate the fixed placement of the cable core 6, the mica tape 5 is connected with the outside of the rubber sleeve 2 through the groove 4, the mica tape 5 has good fire-resistant insulation, so that the cable core 6 is protected from working, the cable core 6 is fixed between the insides of the mica tapes 5, the cable core 6 can effectively transfer electric quantity, the flexible clapboard 7 is fixed between the outsides of the rubber sleeve 2 and the outside of the mica tape 5, the flexible clapboard 7 can assist in fixing the cable core 6 and increase the strength of the cable, the limiting hole 8 is formed on one side of the outside of the flexible clapboard 7, the second steel wire 9 is fixed between the insides of the limiting holes 8, and, the filling layer 10 is filled between the inside of the mineral tape 11 and the outside of the mica tape 5, and the cable core 6 can be stably fixed in the mineral tape 11 by the filling layer 10.

In the second embodiment, based on the first embodiment, as shown in fig. 2, the protection component 12 includes a waterproof layer 13, a copper sheath 14, a heat-resistant layer 15, a fireproof layer 16, an outer sheath 17 and an anti-oxidation coating 18, the waterproof layer 13 is sleeved outside the mineral tape 11, the copper sheath 14 is sleeved outside the waterproof layer 13, the heat-resistant layer 15 is sleeved outside the copper sheath 14, the fireproof layer 16 is sleeved outside the heat-resistant layer 15, the outer sheath 17 is sleeved outside the fireproof layer 16, the anti-oxidation coating 18 is coated outside the outer sheath 17, and the pipe sleeve of the waterproof layer 13 is coated outside the mineral tape 11, so that the cable has waterproof performance, the cable core 6 is not affected by rainwater, when the copper sheath 14 is wound outside the waterproof layer 13, the copper sheath 14 has good bending property and corrosion resistance, so that the internal structure can be well protected, when the copper sheath 14 is coated by the heat-resistant layer 15, let the transmission of heat-resistant layer 15 can effectual isolated high temperature, make the cable also can normal use in high temperature environment, heat-resistant layer 15 outside flame retardant coating 16 then can form thick flame retardant coating under the flame invasion and attack, make the cable can normally supply power in flame at cooperation heat-resistant layer 15, let people can start fire-extinguishing equipment, reduce the loss of fire, the oversheath 17 that 16 outside of flame retardant coating cup jointed then directly exposes in the external world, the internals of protection cable that can be fine, and the oversheath 17 that does not have the steamed low fire-retardant plastics material of cigarette and constitute can be by flame burning smoke intensity very few, no corrosive gas escapes, secondary pollution can not take place.

In the third embodiment, on the basis of the second embodiment, the fire-retardant layer 16 is made of a fire-retardant fiber material, and the fire-retardant layer 16 made of the fire-retardant fiber material can effectively prevent flame from burning the cable.

In a fourth embodiment, on the basis of the first embodiment, the cable core 6 is made of a copper material, the cable core 6 is formed by twisting a plurality of copper wires, and the cable core 6 formed by twisting the plurality of copper wires is convenient for electric quantity transmission.

In the fifth embodiment, on the basis of the second embodiment, the waterproof layer 13 is made of a PE waterproof material, and the waterproof layer 13 can effectively prevent erosion of rainwater, so that the cable core 6 is protected.

In the sixth embodiment, on the basis of the second embodiment, the outer sheath 17 is made of the halogen-free low-smoke flame-retardant plastic material, and the outer sheath 17 made of the halogen-free low-smoke flame-retardant plastic material has very low smoke intensity and no corrosive gas escaping and can not generate secondary pollution when flame burns.

The working principle is as follows: when the utility model is used, the twisted cable core 6 is wrapped by the mica tape 5, the wrapped cable core 6 is placed on the groove 4 arranged around the rubber sleeve 2, so that the flexible baffle 7 at the two sides of the groove 4 of the rubber sleeve 2 is matched with the groove 4 to well limit the position of the cable core 6, after the wrapped cable core is wrapped by the mineral tape 11, the gap is filled by mineral materials to form a filling layer 10, the cable core 6 is stably fixed, the first steel wire 1 in the rubber sleeve 2 and the second steel wire 9 in the flexible baffle 7 can well improve the tensile resistance of the cable, the flexible baffle 7 can not only separate the cable core 6, avoid igniting other cable cores 6 due to short circuit of the cable core 6, but also increase the bearing capacity of the structure, increase the external impact resistance of the cable, and wrap the pipe sleeve of the waterproof layer 13 outside the mineral tape 11, therefore, the cable has waterproof performance, the cable core 6 is not affected by rainwater, the copper sheath 14 is wound outside the waterproof layer 13, the copper sheath 14 has good bending property and corrosion resistance, so that the internal structure can be well protected, the heat-resistant layer 15 is coated on the copper sheath 14, the heat-resistant layer 15 can effectively isolate high-temperature transmission, so that the cable can be normally used in a high-temperature environment, the fire-proof layer 16 outside the heat-resistant layer 15 can form a thick fire-proof layer under the attack of flame, the cable can normally supply power in the flame by being matched with the heat-resistant layer 15, people can start fire extinguishing equipment to reduce the fire loss, the outer sheath 17 sleeved outside the fire-proof layer 16 is directly exposed to the outside, so that the internal components of the cable can be well protected, and the outer sheath 17 made of halogen-free low-smoke flame-retardant plastic materials can have very low smoke intensity when being burnt by the flame, no corrosive gas escape and no secondary pollution.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a flexible mineral substance insulated cable of environmental protection fire prevention, includes first copper wire (1), its characterized in that: a rubber sleeve (2) is sleeved outside the first steel wire (1), a mineral wrapping tape (11) is fixed outside the rubber sleeve (2) through a fixing component (3), and a protection component (12) is fixed outside the mineral wrapping tape (11);

fixed subassembly (3) are including recess (4), mica tape (5), cable core (6), flexible baffle (7), spacing hole (8), second copper wire (9) and filling layer (10), gum cover (2) outside is all seted up all around fluted (4), gum cover (2) outside is connected with mica tape (5) through recess (4), be fixed with cable core (6) between mica tape (5) inside, gum cover (2) outside is located and all is fixed with flexible baffle (7) between mica tape (5) outside, spacing hole (8) have been seted up to flexible baffle (7) outside one side, be fixed with second copper wire (9) between spacing hole (8) inside, mineral substance band (11) inside and mica tape (5) outside between pack and have filling layer (10).

2. The environment-friendly, fireproof and flexible mineral insulated cable according to claim 1, wherein: protection component (12) are including waterproof layer (13), copper sheath (14), heat-resisting layer (15), flame retardant coating (16), oversheath (17) and anti-oxidant coating (18), waterproof layer (13) have been cup jointed in mineral substance band (11) outside, copper sheath (14) have been cup jointed in waterproof layer (13) outside, heat-resisting layer (15) have been cup jointed in copper sheath (14) outside, flame retardant coating (16) have been cup jointed in heat-resisting layer (15) outside, oversheath (17) have been cup jointed in flame retardant coating (16) outside, oversheath (17) outside scribbles anti-oxidant coating (18).

3. The environment-friendly, fireproof and flexible mineral insulated cable according to claim 2, wherein: the fire-proof layer (16) is made of a flame-retardant fiber material.

4. The environment-friendly, fireproof and flexible mineral insulated cable according to claim 1, wherein: the cable core (6) is made of a copper material, and the cable core (6) is formed by twisting a plurality of strands of copper wires.

5. The environment-friendly, fireproof and flexible mineral insulated cable according to claim 2, wherein: the waterproof layer (13) is made of PE waterproof materials.

6. The environment-friendly, fireproof and flexible mineral insulated cable according to claim 2, wherein: the outer sheath (17) is made of halogen-free low-smoke flame-retardant plastic materials.