CN215933222U

CN215933222U - Flexible fireproof mineral cable

Info

Publication number: CN215933222U
Application number: CN202122627140.XU
Authority: CN
Inventors: 高彦军; 石卫娟; 彭高攀; 孙六锋; 任子媛; 齐国苹
Original assignee: Henan Haoxiang Electric Cable Manufacturing Co ltd
Current assignee: Henan Haoxiang Electric Cable Manufacturing Co ltd
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-03-01
Anticipated expiration: 2031-10-29

Abstract

The utility model discloses a flexible fireproof mineral cable which comprises a flame-retardant outer sheath and a plurality of wire cores, wherein five wire cores are distributed around the circumference of the center of the cable, an inner lining layer is extruded outside all the wire cores, mineral substances are filled in gaps between the inner lining layer and the wire cores, an inner flexible layer is arranged outside the inner lining layer, an outer flexible layer is woven outside the inner flexible layer by nylon wires, and the outer flexible layer is wrapped in the flame-retardant outer sheath. A plurality of elastic particles are laid in the inner flexible layer, and gaps exist between every two adjacent elastic particles. The elastic particles are rubber particles, and different elastic particles are irregularly arranged. The utility model can improve the flexibility of the fireproof mineral cable, so that the fireproof mineral cable is not easy to break.

Description

Flexible fireproof mineral cable

Technical Field

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

Background

The fireproof mineral cable can continuously burn for 3 hours at 950 ℃ by applying 300V voltage without breaking down, and is often used in many high-rise buildings and important places, such as airports and the like. The mineral substance in the fireproof mineral substance cable is a highly compressed inorganic substance, such as magnesium hydroxide, aluminum hydroxide and the like, and has good fire retardant performance, but the conventional fireproof mineral substance cable has poor flexibility and is easy to break when bent, and finally the cable cannot be used.

Disclosure of Invention

The utility model aims to provide a flexible fireproof mineral cable, which is used for solving the problem of poor flexibility of the existing fireproof mineral cable.

In order to solve the problems, the utility model adopts the following technical scheme:

the utility model provides a flexible fire prevention mineral substance cable, includes fire-retardant oversheath and many sinle silks, the sinle silks have five around cable center circumference distribution, and the crowded package of all sinle silks outsides has the inner liner, is the mineral substance packing in the space between inner liner and the sinle silks, and the inner liner is provided with interior flexible layer outward, and interior flexible layer adopts nylon yarn to weave outward flexible layer outward, and outer flexible layer parcel is in the fire-retardant oversheath.

Optionally, a plurality of elastic particles are laid in the inner flexible layer, and gaps exist between adjacent elastic particles.

Optionally, the elastic particles are rubber particles, and different elastic particles are arranged irregularly.

Optionally, the wire core comprises a conductor and an insulating layer coated outside the conductor, and the conductor is formed by twisting a plurality of oxygen-free copper wires.

Optionally, the flame-retardant outer sheath is made of radiation cross-linked flame-retardant CPE sheath material.

Optionally, the outer flexible layer is a high density woven structure.

Optionally, a moisture barrier is disposed between the outer flexible layer and the flame retardant outer jacket.

By adopting the technical scheme, the utility model has the following advantages:

the fireproof mineral cable has good toughness, is not easy to break, improves the bending property of the fireproof mineral cable, and can avoid cable failure caused by cable breaking.

Drawings

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

Reference numerals: 1. the flame-retardant outer sheath comprises a flame-retardant outer sheath, 2, a moisture-proof layer, 3, an outer flexible layer, 4, an inner flexible layer, 5, elastic particles, 6, an inner lining layer, 7, an insulating layer, 8 and a conductor.

Detailed Description

In order to make the technical purpose, technical solution and beneficial effects of the present invention more clear, the technical solution of the present invention is further described below with reference to fig. 1 and the specific embodiment.

An embodiment of a flexible fire-resistant mineral cable:

the utility model provides a flexible fire prevention mineral substance cable includes fire-retardant oversheath 1 and many sinle silks, the sinle silks have five around cable center circumference distribution, the outside crowded package of all sinle silks has inner liner 6, be the mineral substance packing in the space between inner liner 6 and the sinle silks, can effectively prevent fires, have good back-fire relief, stifled cigarette, the performance such as resistant oil, the mineral substance packing of here is prior art, inner liner 6 is provided with interior flexible layer 4 outward, outer flexible layer 3 has been woven to interior flexible layer 4 outer adoption nylon yarn, nylon yarn toughness is good, have the advantage of difficult winding, difficult rupture after weaving, can make the cable have more excellent bending nature, outer flexible layer 3 wraps up in the fire-retardant oversheath 1.

The inner flexible layer 4 and the outer flexible layer 3 are combined for use, so that the flexibility and the bending resistance of the cable can be further enhanced.

Further, as one embodiment of the present invention, a plurality of elastic particles 5 are laid in the inner flexible layer 4, and a gap exists between adjacent elastic particles 5, so that when the cable is bent, the elastic particles 5 have a deformation space, and the function of the inner flexible layer 4 is realized.

Further, as one embodiment of the present invention, rubber particles are used as the elastic particles 5, and different elastic particles 5 are arranged irregularly. The shape and size of the different elastomer particles 5 may be the same or different. The elastic particles 5 are irregularly arranged in the inner flexible layer 4, and when the cable is bent, the positions of the elastic particles 5 can be freely changed under the action of external force, so that the internal stress balance is facilitated.

Further, as one embodiment of the utility model, the wire core comprises a conductor 8 and an insulating layer 7 coated outside the conductor 8, the insulating layer 7 is a mineral insulating layer, and the conductor 8 is formed by twisting a plurality of oxygen-free copper wires.

Further, as one embodiment of the present invention, the flame-retardant outer sheath 1 adopts a radiation cross-linking flame-retardant CPE sheath material.

Further, as one embodiment of the present invention, the outer flexible layer 3 is a high-density woven structure. Adopt the nylon yarn to weave high density, when the cable was buckled, outer flexible layer 3 had both had higher toughness, still can avoid outer flexible layer 3 to scatter because of buckling.

Further, as one embodiment of the present invention, a moisture-proof layer 2 is disposed between the outer flexible layer 3 and the flame-retardant outer sheath 1. The moisture barrier 2 can effectively prevent water vapor from permeating into the cable. The dampproof course 2 adopts the rope that blocks water to fill, can avoid other stereoplasm materials to reduce cable bendability.

The above embodiments are not intended to limit the shape, material, structure, etc. of the present invention in any way, and any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.

Claims

1. A flexible fireproof mineral cable is characterized in that: including fire-retardant oversheath and many sinle silks, the sinle silks have five around cable center circumference distribution, and the crowded package of all sinle silks outsides has the inner liner, is the mineral substance packing in the space between inner liner and the sinle silks, and the inner liner is provided with interior flexible layer outward, and outer flexible layer has been woven to interior flexible layer adoption nylon yarn outward, and outer flexible layer wraps up in the fire-retardant oversheath.

2. A flexible fire-resistant mineral matter cable according to claim 1, wherein: a plurality of elastic particles are laid in the inner flexible layer, and gaps exist between every two adjacent elastic particles.

3. A flexible fire-resistant mineral matter cable according to claim 2, wherein: the elastic particles are rubber particles, and different elastic particles are irregularly arranged.

4. A flexible fire-resistant mineral matter cable according to claim 1, wherein: the cable core comprises a conductor and an insulating layer coated outside the conductor, and the conductor is formed by stranding a plurality of anaerobic copper wires.

5. A flexible fire-resistant mineral matter cable according to any one of claims 1 to 4, wherein: the flame-retardant outer sheath is made of radiation cross-linking flame-retardant CPE sheath materials.

6. A flexible fire-resistant mineral matter cable according to claim 5, wherein: the outer flexible layer is of a high-density woven structure.

7. A flexible fire-resistant mineral matter cable according to claim 5, wherein: a moisture-proof layer is arranged between the outer flexible layer and the flame-retardant outer sheath.