CN216671273U

CN216671273U - Rigid-flexible flame-retardant cable

Info

Publication number: CN216671273U
Application number: CN202123195748.6U
Authority: CN
Inventors: 戴琪; 杨杰; 杨军华
Original assignee: Jiangsu Xinfeng Cable Co ltd
Current assignee: Jiangsu Xinfeng Cable Co ltd
Priority date: 2021-12-19
Filing date: 2021-12-19
Publication date: 2022-06-03
Anticipated expiration: 2031-12-19

Abstract

The utility model relates to the technical field of power cables, and discloses a rigid-flexible flame-retardant cable, which comprises a cable body and a cable inner core, wherein the cable body consists of a cable outer layer, a flexible fireproof layer, an insulating layer and flame-retardant filler; the cable has the advantages that the strength of the cable is enhanced by the steel wire rope, the flame retardant effect of the cable is enhanced by the flexible fireproof material, the rigidity and flexibility of the cable are both considered, the anti-pulling performance of the cable is improved, the service life of the cable is prolonged, meanwhile, the cable has the anti-aging effect, the cable is not easy to age in the long-term use process, and the problem that the cable is easy to break in the long-term use process due to poor strength and poor pulling resistance of some existing cables is solved.

Description

Rigid-flexible flame-retardant cable

Technical Field

The utility model relates to the technical field of power cables, in particular to a rigid and flexible flame-retardant cable.

Background

At present, with the development of science and technology, the fields of industry and the like are also rapidly improved, and the use amount of the cable is increased, the cable is usually a cable which is similar to a rope and is formed by twisting at least two stranded wires in each group of a plurality of or a plurality of groups of wires, the wires in each group are mutually insulated and are often twisted around a center, the whole outer surface is coated with a high-insulation covering layer, the types of the cable are various, the cable can be applied to different fields, and the use environment of the cable in different fields is different, so that different requirements are also required on the cable.

The existing cables are poor in strength and poor in anti-pulling performance, so that the cables are easy to break in the long-term use process, the surface layers of the cables are easy to age, cable cores are exposed outside, and short circuits are caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a rigid-flexible flame-retardant cable, which adopts a steel wire rope to enhance the strength of the cable and adopts a flexible fireproof material to enhance the flame-retardant effect of the cable, so that the rigidity and flexibility of the cable are both improved, and the anti-pulling performance of the cable is improved.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a fire-retardant type cable that rigid and flexible compromise, includes cable body and cable inner core, the cable body comprises cable skin, flexible flame retardant coating, insulating layer and fire-retardant filler, the outer surface that sets up at flexible flame retardant coating of cable, the insulating layer sets up the outside at the cable inner core, fire-retardant filler fills the inside that sets up at the insulating layer, the outer inside of cable is inlayed and is equipped with long wire rope, the cable skin is including gathering perfluor ethylene propylene layer, ageing resistant layer and enhancement layer, gather the outside that perfluor ethylene propylene layer set up on ageing resistant layer, the enhancement layer sets up the inside on ageing resistant layer, and the surface of enhancement layer opposite side contacts with the surface of flexible flame retardant coating.

Preferably, the flexible fireproof layer is made of fireproof fibers, and the thickness of the flexible fireproof layer is 2.5-8 mm.

Preferably, the insulating layer is made of foam plastic filler, and the flame-retardant filler is respectively positioned at the upper side and the lower side in the insulating layer.

Preferably, the reinforcing layer is formed by weaving enameled wires and aramid fibers, and the anti-aging layer is made of polytetrafluoroethylene.

Preferably, the length of the long steel wire ropes is the same as that of the cable body, and the number of the long steel wire ropes is a plurality of the long steel wire ropes and distributed in an annular array.

Preferably, the cross section of the flame-retardant filler is arranged in a circular shape, and the flame-retardant filler is made of magnesium hydroxide or aluminum hydroxide.

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

the cable has the advantages that the strength of the cable is enhanced by the steel wire rope, the flame retardant effect of the cable is enhanced by the flexible fireproof material, the rigidity and flexibility of the cable are both considered, the anti-pulling performance of the cable is improved, the service life of the cable is prolonged, meanwhile, the cable has the anti-aging effect, the cable is not easy to age in the long-term use process, and the problem that the cable is easy to break in the long-term use process due to poor strength and poor pulling resistance of some existing cables is solved.

Drawings

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

FIG. 2 is a schematic perspective view of the construction of a long wire rope according to the present invention;

FIG. 3 is a cross-sectional view of the structure of the present invention;

fig. 4 is a structural laminate of the outer layer of the cable of the present invention.

In the figure: 1. a cable body; 101. an outer layer of the cable; 1011. a layer of fluorinated ethylene propylene; 1012. an anti-aging layer; 1013. a reinforcing layer; 102. a flexible fire barrier layer; 103. an insulating layer; 104. a flame retardant filler; 2. an inner core of the cable; 3. long steel wire ropes.

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, a rigid-flexible flame-retardant cable comprises a cable body 1 and a cable core 2, wherein the cable body 1 is composed of a cable outer layer 101, a flexible flame-retardant layer 102, an insulating layer 103 and a flame-retardant filler 104, the cable outer layer 101 is disposed on the surface of the flexible flame-retardant layer 102, the insulating layer 103 is disposed on the outer side of the cable core 2, the flame-retardant filler 104 is filled in the insulating layer 103, a long steel wire rope 3 is embedded in the cable outer layer 101, the cable outer layer 101 comprises a fluorinated ethylene propylene layer 1011, an anti-aging layer 1012 and a reinforcing layer 1013, the fluorinated ethylene propylene layer 1011 is disposed on the outer side of the anti-aging layer 1012, the reinforcing layer 1013 is disposed in the anti-aging layer 1012, and the surface of the reinforcing layer 1013 on the other side is in contact with the surface of the flexible flame-retardant layer 102, the cable adopts a steel wire rope to reinforce the strength of the cable and adopts a flexible flame-retardant material to reinforce the flame-retardant effect of the cable, make this cable rigid and flexible compromise, promote the tensile performance of tearing of this cable to prolong its life, this cable has the efficiency of ageing resistance simultaneously, is difficult for ageing in long-term use, has solved some current cable intensity not good enough, and the tensile performance of tearing is relatively poor, thereby leads to the easy cracked problem of cable in long-term use.

The flexible fireproof layer 102 is made of fireproof fibers, the thickness of the flexible fireproof layer 102 is 2.5-8mm, in the embodiment, the fireproof fibers are efficient heat-insulating materials and have the characteristics of softness, high strength and the like, and the flexibility of the cable can be improved and the flame retardance can be improved by designing the flexible fireproof layer 102 to be made of fireproof fibers.

The insulating layer 103 is made of foam plastic filler, the flame-retardant filler 104 is respectively located on the upper side and the lower side of the inside of the insulating layer 103, and in the embodiment, the foam plastic filler has the characteristics of light weight, heat insulation, sound absorption, shock absorption, excellent insulativity and the like, and through the arrangement of the insulating layer 103, the foam plastic filler can provide insulation protection and shock absorption protection for the cable inner core 2.

Enhancement layer 1013 adopts the enameled wire to weave with the aramid fiber silk and forms, the material of anti-aging layer 1012 is polytetrafluoroethylene, in this embodiment, the enameled wire possesses good intensity and pliability, and the aramid fiber silk has the superhigh intensity, high temperature resistant, it is acid and alkali-resistant, good performances such as light in weight, good insulating nature and ageing resistance also have simultaneously, adopt the enameled wire to weave with the aramid fiber silk through design enhancement layer 1013 and form, it can effectively promote the intensity of this cable, and polytetrafluoroethylene has good chemical stability, corrosion resistance, leakproofness, electric insulation and good ageing resistance, setting through anti-aging layer 1012, effectively promote the ageing resistance of this cable.

The length of long wire rope 3 is the same with cable body 1's length, and the quantity of long wire rope 3 is a plurality of and is the annular array and distributes, in this embodiment, through long wire rope 3's setting, effectively promotes the intensity of this cable, and long wire rope 3 distributes more evenly moreover to effectual for this cable shares the power of dragging.

The cross-section of fire-retardant filler 104 is circular setting, and the material of fire-retardant filler 104 is magnesium hydroxide or aluminium hydroxide, and in this embodiment, through the setting of fire-retardant filler 104, when the phenomenon of burning appears in the cable, fire-retardant filler 104 plays the effect that prevents the burning, effectively prevents the intensity of a fire to stretch, improves the security of this cable.

The working principle is as follows: when the cable works, the anti-aging layer 1012 can provide anti-aging protection for the cable, the service life of the cable is prolonged, meanwhile, the reinforcing layer 1013 and the long steel wire rope 3 are arranged, the overall strength of the cable can be improved through the cooperation of the reinforcing layer 1013 and the long steel wire rope 3, the cable is effectively prevented from being broken, the tensile property of the cable is improved, and meanwhile, the flame-retardant filler 104 and the flexible fireproof layer 102 are arranged, so that the flame-retardant and fireproof performance of the cable can be enhanced, and the cable is safer.

It should be noted that, in this document, relational terms such as first and second, and the like are 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. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

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

Claims

1. The utility model provides a fire-retardant type cable that rigid and flexible compromise, includes cable body (1) and cable inner core (2), its characterized in that: the cable body (1) is composed of a cable outer layer (101), a flexible fireproof layer (102), an insulating layer (103) and a flame-retardant filler (104), the cable outer layer (101) is arranged on the surface of the flexible fireproof layer (102) outer layer, the insulating layer (103) is arranged on the outer side of a cable inner core (2), the flame-retardant filler (104) is filled in the insulating layer (103), a long steel wire rope (3) is embedded in the cable outer layer (101), the cable outer layer (101) comprises a perfluorinated ethylene propylene layer (1011), an anti-aging layer (1012) and a reinforcing layer (1013), the perfluorinated ethylene propylene layer (1011) is arranged on the outer side 1012 of the anti-aging layer (1012), the reinforcing layer (1013) is arranged in the anti-aging layer (1012), and the surface of the other side of the reinforcing layer (1013) is in contact with the surface of the flexible fireproof layer (102).

2. The flame retardant cable according to claim 1, wherein: the flexible fireproof layer (102) is made of fireproof fibers, and the thickness of the flexible fireproof layer (102) is 2.5-8 mm.

3. The flame retardant cable according to claim 1, wherein: the insulating layer (103) is made of foam plastic filler, and the flame-retardant filler (104) is respectively positioned on the upper side and the lower side inside the insulating layer (103).

4. The flame retardant cable according to claim 1, wherein: the reinforcing layer (1013) is formed by weaving enameled wires and aramid fibers, and the anti-aging layer (1012) is made of polytetrafluoroethylene.

5. The flame retardant cable according to claim 1, wherein: the length of the long steel wire ropes (3) is the same as that of the cable body (1), and the number of the long steel wire ropes (3) is a plurality and distributed in an annular array.

6. The flame-retardant cable with both rigidity and flexibility according to claim 1, characterized in that: the cross section of the flame-retardant filler (104) is arranged in a circular shape, and the flame-retardant filler (104) is made of magnesium hydroxide or aluminum hydroxide.