CN216353445U

CN216353445U - Light-duty resistance to compression resistant crooked cable that excels in

Info

Publication number: CN216353445U
Application number: CN202123105556.1U
Authority: CN
Inventors: 赵思源
Original assignee: Hebei Dagang Cable Co ltd
Current assignee: Hebei Dagang Cable Co ltd
Priority date: 2021-12-13
Filing date: 2021-12-13
Publication date: 2022-04-19
Anticipated expiration: 2031-12-13

Abstract

The utility model discloses a light high-strength compression-resistant bending-resistant cable which comprises an outer protection layer, a fire-resistant layer, an armor layer and an inner protection layer which are sequentially arranged from outside to inside, wherein a supporting framework with a cross-shaped cross section is arranged in the inner protection layer, a conductive core is arranged at each included angle of the supporting framework, an insulating layer is arranged on the outer side of the conductive core, and a filling layer is filled in the inner protection layer. According to the utility model, the supporting framework and the supporting block are arranged in the cable and are matched with each other to support the cavity in the cable, so that external extrusion and bending are effectively resisted, the internal conductive core is better protected, the compression resistance and bending resistance of the cable are enhanced, and the normal operation of cable power transmission work is ensured.

Description

Light-duty resistance to compression resistant crooked cable that excels in

Technical Field

The utility model relates to the technical field of cables, in particular to a light high-strength anti-compression bending-resistant cable.

Background

In the modern society, with the development of science and technology, various industries are developed towards industrialization and electronization, which means that the using amount of the cable is greatly increased, and China is a rapidly developing country, the using amount of the cable is increased year by year, and the cable cannot be extruded and bent in the transportation and laying processes, so that how to better protect the inner wire core and improve the strength of the cable becomes important in the future development of the cable.

SUMMERY OF THE UTILITY MODEL

The utility model aims to avoid the defects in the prior art and provides a light high-strength compression-resistant bending-resistant cable, so that the defects in the prior art are effectively overcome.

In order to achieve the purpose, the utility model adopts the technical scheme that: a light high-strength compression-resistant bending-resistant cable comprises an outer protection layer, a fire-resistant layer, an armor layer and an inner protection layer which are sequentially arranged from outside to inside, wherein a supporting framework with a cross-shaped cross section is arranged in the inner protection layer, conductive cores are arranged at the included angles of the supporting framework, an insulating layer is arranged on the outer side of each conductive core, and a filling layer is filled in the inner protection layer;

the supporting framework is provided with curved supporting heads at the end parts of all supporting rods of the supporting framework, a containing cavity is formed between the supporting heads and the inner protection layer, supporting blocks with oval cross sections are arranged in the containing cavity, the two sides of each supporting block are respectively abutted against the inner walls of the supporting heads and the inner protection layer, and a plurality of reinforcing ribs are uniformly distributed on the supporting framework.

Furthermore, the outer protective layer is made of low-smoke halogen-free flame-retardant polyolefin.

Further, the fireproof layer is made of mica tapes.

Furthermore, the armor layer is formed by weaving copper wires.

Further, the inner sheath layer is made of polyethylene.

Furthermore, the supporting framework and the material are polypropylene ethylene.

Furthermore, the supporting block is made of an elastic rubber strip.

Further, the insulating layer is polyvinyl chloride.

Further, the filling layer is a hemp rope.

The technical scheme of the utility model has the following beneficial effects: according to the utility model, the supporting framework and the supporting block are arranged in the cable and are matched with each other to support the cavity in the cable, so that external extrusion and bending are effectively resisted, the internal conductive core is better protected, the compression resistance and bending resistance of the cable are enhanced, and the normal operation of cable power transmission work is ensured.

Drawings

Fig. 1 is a schematic cross-sectional structure diagram according to an embodiment of the present invention.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the utility model. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1, the light high-strength compression-resistant bending-resistant cable according to the embodiment includes an outer sheath 1, a flame retardant coating 2, an armor layer 3, and an inner sheath 4, which are sequentially disposed from outside to inside, wherein a supporting framework 5 with a cross-shaped cross section is disposed in the inner sheath 4, a conductive core 6 is disposed at each included angle of the supporting framework 5, an insulating layer 7 is disposed outside the conductive core 6, and a filling layer 8 is filled in the inner sheath 4;

the supporting framework 5 is provided with curved supporting heads 5a at the end parts of all the supporting rods, a containing cavity is formed between the supporting heads 5a and the inner protection layer 4, a supporting block 9 with an oval-shaped cross section is arranged in the containing cavity, two sides of the supporting block 9 are respectively abutted against the inner walls of the supporting heads 5a and the inner protection layer 4, and a plurality of reinforcing ribs 10 are uniformly distributed on the supporting framework 5.

The end of the supporting head 5a is pressed against the inner wall of the inner sheath 4, and then the supporting block 9 is installed between the supporting head 5a and the inner sheath 4 to perform the function of elastic support.

Preferably, the outer sheath 1 is made of low-smoke halogen-free flame-retardant polyolefin.

Preferably, the material of the fire-resistant layer 2 is mica tape.

Preferably, the armor layer 3 is formed by weaving copper wires, and the armor layer can enhance the shielding capacity of the cable.

Preferably, the inner sheath layer 4 is made of polyethylene.

Preferably, the supporting framework 5 and the material are polypropylene, and the material has certain elasticity, stable structure and certain strength, so that the internal conductive core is better protected.

Preferably, the supporting block 9 is made of an elastic rubber strip.

Preferably, the insulating layer 7 is polyvinyl chloride.

Preferably, the filling layer 8 is a hemp rope.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the utility model in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. The utility model provides a light-duty high strength resistance to compression is able to bear or endure crooked cable which characterized in that: the fireproof insulation cable comprises an outer protection layer, a fireproof layer, an armor layer and an inner protection layer which are sequentially arranged from outside to inside, wherein a supporting framework with a cross-shaped cross section is arranged in the inner protection layer;

2. The lightweight high strength crush resistant bend resistant cable of claim 1 wherein: the outer protective layer is made of low-smoke halogen-free flame-retardant polyolefin.

3. The lightweight high strength crush resistant bend resistant cable of claim 1 wherein: the fireproof layer is made of mica tapes.

4. The lightweight high strength crush resistant bend resistant cable of claim 1 wherein: the armor layer is formed by weaving copper wires.

5. The lightweight high strength crush resistant bend resistant cable of claim 1 wherein: the inner protective layer is made of polyethylene.

6. The lightweight high strength crush resistant bend resistant cable of claim 1 wherein: the supporting framework and the material are polypropylene ethylene.

7. The lightweight high strength crush resistant bend resistant cable of claim 1 wherein: the supporting block is made of elastic rubber strips.

8. The lightweight high strength crush resistant bend resistant cable of claim 1 wherein: the insulating layer is polyvinyl chloride.

9. The lightweight high strength crush resistant bend resistant cable of claim 1 wherein: the filling layer is a hemp rope.