CN213339793U

CN213339793U - Flame-retardant high-temperature-resistant anti-compression anti-interference anti-cracking cable

Info

Publication number: CN213339793U
Application number: CN202021937570.0U
Authority: CN
Inventors: 沈小平; 陶煜健
Original assignee: Tongding Interconnection Information Co Ltd; Jiangsu Tongding Optic Electronic Stock Co Ltd
Current assignee: Tongding Interconnection Information Co Ltd; Jiangsu Tongding Optic Electronic Stock Co Ltd
Priority date: 2020-09-08
Filing date: 2020-09-08
Publication date: 2021-06-01
Anticipated expiration: 2030-09-08

Abstract

The invention provides a flame-retardant high-temperature-resistant compression-resistant anti-interference anti-cracking cable, which comprises a cable core and a protective layer coated on the outer side of the cable core; the cable core comprises at least one four-wire set, the four-wire set is formed by twisting four insulated single wires with different colors, and each insulated single wire comprises a conductor and an insulating layer structure on the outer side of the conductor; the protective layer comprises a polyester glass fiber cloth layer, a pressure-resistant layer, a copper strip shielding layer, an inner cushion layer, an armor layer, an inner sheath layer, an anti-cracking layer and an outer sheath layer which are sequentially coated from inside to outside. The outer sheath structure of the cable core of the cable is reasonable in design, the stability of cable signal transmission is guaranteed, transmission signals are enabled not to be distorted and deformed, the safety and reliability of the cable are improved, and meanwhile, the cable is further guaranteed to have the functions of superior temperature resistance, wear resistance, compression resistance, water seepage prevention and the like.

Description

Flame-retardant high-temperature-resistant anti-compression anti-interference anti-cracking cable

Technical Field

The invention belongs to the technical field of cables, and particularly relates to a flame-retardant high-temperature-resistant anti-compression anti-interference anti-cracking cable.

Background

With the continuous construction of the country, the demand of cables in various industries is increased, particularly in the power or railway industry. The cable has increased requirements and characteristics, and the cable is required to have general characteristics and adaptability to severe environments. At present, environmental pollution and extra-large natural disasters occur frequently, especially chemical raw materials, fire disasters, landslides and house collapse. The cable is used as a main tool for power and signal transmission, for example, in the case of sudden fire, landslide or house collapse, the common cable is difficult to deal with the sudden situation, and power or signal transmission interruption occurs. Once this occurs, it may cause rescue difficulties and even danger to people's lives, causing serious property loss in countries and people, and therefore, a more reliable cable is required.

Disclosure of Invention

In view of this, the invention aims to overcome the defects in the prior art and provides a flame-retardant high-temperature-resistant pressure-resistant anti-interference anti-cracking cable.

In order to achieve the purpose, the technical scheme of the invention is realized as follows:

a flame-retardant high-temperature-resistant compression-resistant anti-interference anti-cracking cable comprises a cable core and a protective layer coated on the outer side of the cable core; the cable core comprises at least one four-wire set, the four-wire set is formed by twisting four insulated single wires with different colors, and each insulated single wire comprises a conductor and an insulating layer structure on the outer side of the conductor; the protective layer comprises a polyester glass fiber cloth layer, a pressure-resistant layer, a copper strip shielding layer, an inner cushion layer, an armor layer, an inner sheath layer, an anti-cracking layer and an outer sheath layer which are sequentially coated from inside to outside.

Further, the insulating layer structure includes a layer of ST insulating material.

Further, the inner sheath layer is made of an ST insulating material layer.

Further, the pressure-resistant layer is made of a P4U material layer.

Further, the inner pad layer is made of an ST insulating material layer.

Further, the anti-cracking layer is a polyester glass fiber cloth layer.

Further, the outer sheath layer is made of ST insulating material layer

Compared with the prior art, the invention has the following advantages:

the outer sheath structure of the cable core of the cable is reasonable in design, the stability of cable signal transmission is guaranteed, transmission signals are enabled not to be distorted and deformed, the safety and reliability of the cable are improved, meanwhile, the cable is guaranteed to have excellent temperature resistance, wear resistance, compression resistance, water seepage prevention and other functions, and the requirements for the cable in any environment are completely met.

The insulation layer structure formed by ST insulation materials and the sheath structure outside the cable core can provide multiple protection for the cable core, so that the cable has the advantages of pressure resistance, interference resistance, cracking resistance, flame retardance, good heat insulation, light weight, strong heat insulation performance, high strength and the like, the cable core can be prevented from being damaged for a long time in a strong fire, and the compression resistance and the interference resistance of the cable provided by the invention are superior to those of a common cable, and the serious problems of extrusion, shrinkage and deformation of the cable, breakage of the cable core and the like can be avoided.

Drawings

The accompanying drawings, which 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 without limitation. In the drawings:

FIG. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic view of an insulation layer structure with an inner skin layer according to an embodiment of the present invention.

Description of reference numerals:

1-a conductor; 2-an insulating layer structure; 3-polyester fiberglass cloth layer; 4-a pressure resistant layer; 5-copper strip shielding layer; 6-inner cushion layer; 7-an armor layer; 8-inner jacket layer; 9-an anti-cracking layer; 10-an outer jacket layer; 11-inner cortex.

Detailed Description

It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which are merely for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.

In the description of the invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be construed broadly, e.g. as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.

The invention will be described in detail with reference to the following embodiments with reference to the attached drawings.

A flame-retardant high-temperature-resistant compression-resistant anti-interference anti-cracking cable is shown in figure 1 and comprises a cable core and a sheath coated on the outer side of the cable core; the cable core comprises at least one four-wire set, the four-wire set is formed by twisting four insulating single wires with different colors, and each insulating single wire comprises a conductor 1 and an insulating layer structure 2 on the outer side of the conductor; the protective layer comprises a polyester glass fiber cloth layer 3, a compression-resistant layer 4, a copper strip shielding layer 5, an inner cushion layer 6, an armor layer 7, an inner sheath layer 8, an anti-cracking layer 9 and an outer sheath layer 10 which are sequentially coated from inside to outside. Usually, the anti-pressure layer adopts a P4U material layer, and the anti-cracking layer is formed by wrapping a polyester glass fiber cloth layer.

By way of example, the insulation layer structure includes an ST insulation material layer, the inner pad layer adopts an ST insulation material layer, both the inner sheath layer and the outer sheath layer adopt ST insulation material layers, the ST insulation material is a flame-retardant and high-temperature-resistant material, and the multiple insulation structure is formed by adopting multiple layers of ST material protection structures with high-temperature resistance and heat corrosion resistance in the cable, so that the cable has extremely high fire resistance and electrical insulation property.

In this application, the sheath structure includes "polyester glass fiber cloth layer, anti pressure layer, copper tape shielding layer, ST insulating material layer, armor, ST insulating material layer, anti-cracking layer and ST insulating material layer". The ST insulating material (ST material) is a new high-technology material and has the characteristics of high temperature resistance, heat corrosion resistance, flame retardancy, heat shock resistance, corrosion resistance, high strength, no toxicity and good dimensional stability. A ST insulating material layer is uniformly arranged on the copper strip shielding layer, the armor layer, the anti-cracking layer and the outer side, so that the cable is ensured to have excellent temperature resistance, heat corrosion resistance and corrosion resistance; and the strength is high, and better anti-cracking performance can be achieved by matching with an anti-cracking layer and an armor layer.

Meanwhile, the shielding performance is effectively guaranteed due to the fact that the copper strip shielding layer is arranged on the inner side, and therefore the anti-interference performance is strong; in addition, because the innermost layer of sheath has the fine cloth layer of polyester glass, realized that the sheath structure is inboard all to have excellent ageing resistance in the outside, ensured that this application cable has splendid durability, guarantee cable signal transmission's stability, make transmission signal undistorted, indeformable, improved the fail safe nature of cable.

The outermost side structure of the cable is a combination of an ST insulating material layer, an anti-cracking layer and an ST insulating material layer, wherein the anti-cracking layer is a polyester glass fiber cloth layer. The obtained performance is not only high temperature resistant, but also cracking resistance and aging resistance are more outstanding, and meanwhile, the ST insulating material layers on the inner side and the outer side of the cracking-resistant layer also bring high temperature resistance, heat corrosion resistance, flame retardancy, thermal shock resistance, corrosion resistance, high strength, dimensional stability and good use performance to the cable.

When the cable is manufactured; using an ST insulating material as an insulating layer structure of a conductor, and stranding 2 or 4 produced insulating single lines into a wire set according to requirements; and twisting a plurality of produced wire groups together into a cable core by using a cabling machine according to requirements, and then sequentially wrapping a polyester glass fiber cloth layer, a P4U material layer, a copper strip shielding layer, an ST insulating material inner cushion layer, a double steel strip armor layer, an ST insulating material inner sheath layer, a polyester glass fiber cloth anti-cracking layer and an ST insulating material outer sheath layer outside the cable core.

In the invention, a single-wire insulating layer structure and multiple ST insulating material layers arranged at intervals in a protective layer are used as a flame-retardant high-temperature-resistant protection structure of the cable; the anti-cracking layer adopts polyester glass fiber cloth, and the polyester glass fiber cloth layer directly coated on the outer layer of the cable core and the anti-cracking layer are used as a tensile anti-cracking protection structure of the cable; the anti-compression layer adopts a P4U material layer as an anti-compression protection structure of the cable. The matching and combined use of the multiple protection structures enable the cable to have extremely high fire resistance, electric insulation, pressure resistance and cracking resistance.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the invention, so that any modifications, equivalents, improvements and the like, which are within the spirit and principle of the present invention, should be included in the scope of the present invention.

Claims

1. The utility model provides a fire-retardant high temperature resistant resistance to compression anti-interference type cable of preventing ftractureing which characterized in that: the cable comprises a cable core and a sheath layer coated on the outer side of the cable core; the cable core comprises at least one four-wire set, the four-wire set is formed by twisting four insulated single wires with different colors, and each insulated single wire comprises a conductor and an insulating layer structure on the outer side of the conductor; the protective layer comprises a polyester glass fiber cloth layer, a pressure-resistant layer, a copper strip shielding layer, an inner cushion layer, an armor layer, an inner sheath layer, an anti-cracking layer and an outer sheath layer which are sequentially coated from inside to outside.

2. The flame-retardant high-temperature-resistant pressure-resistant anti-interference anti-cracking cable according to claim 1, which is characterized in that: the insulating layer structure includes a layer of ST insulating material.

3. The flame-retardant high-temperature-resistant pressure-resistant anti-interference anti-cracking cable according to claim 1, which is characterized in that: the inner sheath layer is made of an ST insulating material layer.

4. The flame-retardant high-temperature-resistant pressure-resistant anti-interference anti-cracking cable according to claim 1, which is characterized in that: the anti-pressure layer is made of a P4U material layer.

5. The flame-retardant high-temperature-resistant pressure-resistant anti-interference anti-cracking cable according to claim 1, which is characterized in that: the inner pad layer is made of an ST insulating material layer.

6. The flame-retardant high-temperature-resistant pressure-resistant anti-interference anti-cracking cable according to claim 1, which is characterized in that: the anti-cracking layer is a polyester glass fiber cloth layer.

7. The flame-retardant high-temperature-resistant pressure-resistant anti-interference anti-cracking cable according to claim 1, which is characterized in that: the outer sheath layer is made of an ST insulating material layer.