CN216871610U

CN216871610U - High-flexibility insulating fireproof cable

Info

Publication number: CN216871610U
Application number: CN202220167069.3U
Authority: CN
Inventors: 张金豹
Original assignee: Hebei Hangpai Cable Co ltd
Current assignee: Hebei Hangpai Cable Co ltd
Priority date: 2022-01-21
Filing date: 2022-01-21
Publication date: 2022-07-01
Anticipated expiration: 2032-01-21

Abstract

The utility model discloses a high-flexibility insulating fireproof cable which comprises a plurality of wire cores which are linearly and equidistantly distributed and insulating sleeves arranged outside the wire cores, wherein first protective layers used for wrapping the insulating sleeves are arranged outside the insulating sleeves; according to the utility model, the two adjacent insulation sleeves can be unfolded through the elastic arc-shaped plate, so that the condition that the two wire cores are contacted to influence normal use after the insulation sleeves are damaged is avoided, the flexible supporting plate can tightly push the elastic arc-shaped plate onto the insulation sleeves, the unfolding effect of the elastic arc-shaped plate on the insulation sleeves is further improved, the high flexibility of the cable is also ensured, and the cable can be bent and wound; the fireproof performance of the cable is ensured by arranging the fireproof layer outside the insulating layer, and the cable is prevented from being on fire to cause greater danger after being on fire.

Description

High-flexibility insulating fireproof cable

Technical Field

The utility model relates to the technical field of cables, in particular to a high-flexibility insulating fireproof cable.

Background

Cables are made of one or more mutually insulated conductors and an outer insulating sheath that carries power or information from one point to another. Typically a rope-like cable made up of several or groups of conductors (at least two in each group) twisted together, with the conductors of each group being insulated from one another and often twisted around a center, the entire outer surface being coated with a highly insulating coating. The cable has the characteristics of internal electrification and external insulation. The flexible mineral insulated cable is made of copper stranded wires, mineral compound insulation and copper materials, has a good bending characteristic sheath through special processing and serves as a PE wire, the main material is made of inorganic materials, the defects of hard structure, easiness in combustion, toxicity and the like are overcome, and the flexible mineral insulated cable has the advantages that other cables do not have, such as: fire resistance, large current-carrying capacity, impact voltage resistance, mechanical damage resistance, halogen-free, non-toxic, explosion-proof, corrosion-resistant, long service life, safety, overload resistance, high temperature resistance and the like.

The high-flexibility cable in the market is poor in flexibility and does not have a fireproof function, so that the whole service life of the cable is shortened, and therefore the high-flexibility insulating fireproof cable is improved.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the utility model provides a high-flexibility insulating fireproof cable.

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

the utility model relates to a high-flexibility insulating fireproof cable which comprises a plurality of wire cores which are linearly and equidistantly distributed and insulating sleeves arranged outside the wire cores, wherein first protective layers used for wrapping the insulating sleeves are arranged outside the insulating sleeves; the outside of first inoxidizing coating is equipped with the insulating layer, the outside of insulating layer is equipped with the flame retardant coating, the outside of flame retardant coating is equipped with the second inoxidizing coating.

As a preferable technical solution of the present invention, a second filler is filled between the two elastic arc-shaped plates, and the second filler is cotton thread.

As a preferable technical scheme of the utility model, a flexible jacking strip penetrating through a second filler is arranged between the two elastic arc-shaped plates.

As a preferred technical scheme of the utility model, the two ends of the flexible jacking strip are respectively provided with a clamping block, and the opposite ends of the two elastic arc-shaped plates are respectively provided with a clamping groove matched with the clamping blocks.

As a preferable technical scheme of the present invention, the end portions of the first protective layer and the insulating layer are both provided with a tightening plate, a first filler is filled between the two tightening plates, and the first filler is a flexible steel strip.

In a preferred embodiment of the present invention, the fire-retardant layer is a ceramized polyolefin fire-retardant layer.

As a preferable technical solution of the present invention, the insulating sheath and the insulating layer are both made of crosslinked polyethylene insulating layer.

As a preferable technical solution of the present invention, the first protective layer and the second protective layer are both high flame retardant halogen-free low smoke polyolefin protective layers.

The utility model has the beneficial effects that:

according to the high-flexibility insulating fireproof cable, the two elastic arc plates matched with the insulating sleeves are arranged between the two adjacent insulating sleeves, the flexible supporting plates are arranged at the end parts between the two elastic arc plates, the two adjacent insulating sleeves can be unfolded by the elastic arc plates, the condition that the two wire cores are contacted after the insulating sleeves are damaged to influence normal use is avoided, the elastic arc plates can be tightly pushed onto the insulating sleeves by the flexible supporting plates, the unfolding effect of the elastic arc plates on the insulating sleeves is further improved, the high flexibility of the cable is also ensured, and the cable can be bent and wound; the fireproof performance of the cable is ensured by arranging the fireproof layer outside the insulating layer, the greater danger caused by the cable being on fire after the cable is on fire is avoided, and the service life of the cable is ensured.

Drawings

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

FIG. 1 is a schematic structural diagram of a high flexibility insulated fireproof cable according to the present invention;

fig. 2 is a schematic structural view at a in fig. 1 of a high-flexibility insulated fireproof cable according to the present invention.

In the figure: 1. a wire core; 2. an insulating sleeve; 3. a first protective layer; 4. a tightening plate; 5. a first filler; 6. an insulating layer; 7. a fire barrier layer; 8. a second protective layer; 9. an elastic arc plate; 10. a flexible supporting plate; 11. a flexible jacking strip; 12. a clamping block; 13. a second filler.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Example (b): as shown in fig. 1 and 2, the high-flexibility insulating fireproof cable of the present invention comprises a plurality of wire cores 1 which are linearly and equidistantly distributed and insulating sleeves 2 which are arranged outside the wire cores 1, wherein first protective layers 3 for wrapping the insulating sleeves 2 are arranged outside the insulating sleeves 2, two elastic arc plates 9 which are matched with the insulating sleeves 2 are arranged between two adjacent insulating sleeves 2, and flexible supporting plates 10 are arranged at the end parts between the two elastic arc plates 9; an insulating layer 6 is arranged outside the first protective layer 3, a fireproof layer 7 is arranged outside the insulating layer 6, and a second protective layer 8 is arranged outside the fireproof layer 7.

Wherein, it has second filler 13 to fill between two elasticity arcwall 9, and second filler 13 establishes to the cotton thread, and the cotton thread can fill between two elasticity arcwall 9, has avoided the cable to make the cable warp under the extrusion.

Wherein, be equipped with the tight strip 11 of flexible top that runs through second filler 13 between two elasticity arcs 9, the tight strip 11 of flexible top can push up elasticity arcs 9 tightly.

Wherein, the both ends of the flexible tight strip 11 of top all are equipped with joint piece 12, the looks remote site of two elasticity arc 9 all seted up with 12 assorted joint grooves of joint piece, be convenient for with the flexible tight strip 11 of top establish between two elasticity arc 9.

Wherein, the tip of first inoxidizing coating 3 and insulating layer 6 all is equipped with props tight board 4, and it has first filler 5 to fill between two prop tight boards 4, and first filler 5 establishes to flexible steel band, props tight board 4 and can fill insulating layer 6 jack-up, and flexible steel band can be to two prop tight boards 4 and fill, has avoided insulating layer 6 inwards sunken.

Wherein, the fireproof layer 7 is a ceramic polyolefin fireproof layer which can play a good fireproof role.

Wherein, insulating cover 2 and insulating layer 6 are all set up to crosslinked polyethylene insulating layer, and crosslinked polyethylene insulating layer can play fine insulating effect, avoids electrocuteeing.

Wherein, first inoxidizing coating 3 and second inoxidizing coating 8 are all set up to high fire-retardant halogen-free low smoke polyolefin inoxidizing coating, and high fire-retardant characteristic material can improve the fire behaviour of cable, and then has improved the holistic life of cable.

When the high-flexibility insulating fireproof cable works, the two elastic arc-shaped plates 9 matched with the insulating sleeves 2 are arranged between the two adjacent insulating sleeves 2, the flexible supporting plates 10 are arranged at the end parts between the two elastic arc-shaped plates 9, the two adjacent insulating sleeves 2 can be unfolded by the elastic arc-shaped plates 9, the condition that the two wire cores 1 are contacted to influence normal use after the insulating sleeves 2 are damaged is avoided, the flexible supporting plates 10 can tightly push the elastic arc-shaped plates 9 onto the insulating sleeves 2, the unfolding effect of the elastic arc-shaped plates 9 on the insulating sleeves 2 is further improved, the high flexibility of the cable is also ensured, and the cable can be wound in a bending way; the fireproof performance of the cable is ensured by arranging the fireproof layer 7 outside the insulating layer 6, and the situation that the cable is on fire to cause greater danger after the cable is on fire is avoided.

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 changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. 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 high-flexibility insulating fireproof cable is characterized by comprising a plurality of wire cores (1) which are linearly distributed at equal intervals and insulating sleeves (2) arranged outside the wire cores (1), wherein first protective layers (3) used for wrapping the insulating sleeves (2) are arranged outside the insulating sleeves (2), two elastic arc-shaped plates (9) matched with the insulating sleeves (2) are arranged between every two adjacent insulating sleeves (2), and a flexible supporting plate (10) is arranged at the end part between the two elastic arc-shaped plates (9); the outside of first inoxidizing coating (3) is equipped with insulating layer (6), the outside of insulating layer (6) is equipped with flame retardant coating (7), the outside of flame retardant coating (7) is equipped with second inoxidizing coating (8).

2. A highly flexible insulated fireproof cable according to claim 1, wherein a second filler (13) is filled between the two elastic arc-shaped plates (9), and the second filler (13) is cotton thread.

3. A highly flexible insulated fireproof cable according to claim 2, wherein a flexible tightening strip (11) is provided between the two elastic curved plates (9) and extends through the second filler (13).

4. The high-flexibility insulating fireproof cable according to claim 3, wherein clamping blocks (12) are arranged at both ends of the flexible tightening strip (11), and clamping grooves matched with the clamping blocks (12) are formed at opposite ends of the two elastic arc plates (9).

5. A highly flexible insulated fireproof cable according to claim 1, wherein the ends of the first protective layer (3) and the insulating layer (6) are provided with a tightening plate (4), a first filler (5) is filled between the two tightening plates (4), and the first filler (5) is a flexible steel strip.

6. A highly flexible insulated fireproof cable according to claim 1, wherein the fireproof layer (7) is provided as a fire-resistant layer of ceramized polyolefin.

7. A highly flexible insulated fireproof cable according to claim 1, wherein the insulating sheath (2) and the insulating layer (6) are provided as insulating layers of cross-linked polyethylene.

8. A highly flexible insulated fireproof cable according to claim 1, wherein the first protective layer (3) and the second protective layer (8) are both provided as highly flame retardant halogen free low smoke polyolefin protective layers.