CN215417577U

CN215417577U - Tensile flexible cable

Info

Publication number: CN215417577U
Application number: CN202121712587.0U
Authority: CN
Inventors: 于永杰; 孙百亮; 王福来; 张博文; 徐礼强; 王相南; 秦红; 王志超
Original assignee: Liaoning Zhongde Cable Co ltd
Current assignee: Liaoning Zhongde Cable Co ltd
Priority date: 2021-07-27
Filing date: 2021-07-27
Publication date: 2022-01-04
Anticipated expiration: 2031-07-27

Abstract

The utility model discloses a tensile-pulling-resistant flexible cable which comprises 4 cable cores, wherein a cable core belting layer and a sheath layer are sequentially coated outside the 4 cable cores, each cable core is provided with a conductor wire core, an insulating layer is coated outside the conductor wire core, a gap formed between the 4 cable cores is filled with a filler, and an aramid yarn woven armor layer is further arranged between the cable core belting layer and the sheath layer. The utility model is not easy to cause the cable sheath to have mechanical damage or bulge and other undesirable damages when laying or using, and obviously improves the performance of repeatedly pulling the cable.

Description

Tensile flexible cable

Technical Field

The utility model relates to a tensile flexible cable.

Background

For cables with higher tensile strength requirements, the overall tensile strength of the cables is improved by adopting a galvanized low-carbon steel wire armored structure, so that the overall structure of the cables can not be damaged when the cables bear external longitudinal tensile force, and the normal and safe operation of the cables is guaranteed. However, when the cable is frequently moved and pulled due to a complicated laying environment, the galvanized low-carbon steel wire has high hardness and poor bending performance, and thus the cable sheath is easily damaged by mechanical damage, bulge, or the like during laying or use.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a pulling-resistant flexible cable with better bending performance.

In order to solve the technical problem, the tensile flexible cable comprises 4 cable cores, wherein a cable core belting layer and a sheath layer are sequentially coated outside the 4 cable cores, each cable core is provided with a conductor wire core, an insulating layer is coated outside the conductor wire core, a gap formed between the 4 cable cores is filled with a filler, and an aramid yarn woven armor layer is further arranged between the cable core belting layer and the sheath layer.

As an improvement of the utility model, the filler is a filling rope.

The filling rope is preferably a polypropylene filling rope.

Furthermore, the insulating layer is a crosslinked polyethylene insulating layer.

Furthermore, the cable core belting layer is a polyester belting layer.

Further, the sheath layer is a polyvinyl chloride sheath layer.

Further, the conductor wire core is a fifth annealed soft copper conductor wire core.

With the anti-pulling flexible cable having the above-described structure,

the aramid yarn weaving armor process is adopted to replace the traditional steel wire armor structure, so that the cable sheath has the advantages of good compliance, ultrahigh strength, high modulus, high temperature resistance, acid and alkali resistance, light weight and the like, has good bending performance, is not easy to cause mechanical damage or bulge and other undesirable damages to the cable sheath when being laid or used, and obviously improves the repeated pulling performance of the cable; the insulating layer is made of cross-linked polyethylene material, and the material has the main characteristics of high mechanical strength, good insulating property and good chemical stability, can resist high temperature of 90 ℃ for long-term use, and has a thermal life of 40 years; the sheath layer material is made of polyvinyl chloride sheath material, and the material has the characteristics of good dielectric property, low price, no flame retardation, heat resistance, aging resistance, oil resistance, wear resistance, chemical corrosion resistance, good mechanical property and the like.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings.

Fig. 1 is a schematic cross-sectional view of a tensile flexible cable according to the present invention.

Detailed Description

Referring to fig. 1, the tensile flexible cable comprises 4 cable cores 1, wherein a cable core belting layer 2 and a sheath layer 3 are sequentially coated outside the 4 cable cores 1, each cable core 1 is provided with a conductor wire core 4, an insulating layer 5 is coated outside the conductor wire core 4, a gap formed between the 4 cable cores 1 is filled with a filler 6, and an aramid yarn braided armor layer 7 is further arranged between the cable core belting layer 2 and the sheath layer 3. The filler 6 is a filling rope, preferably a polypropylene filling rope. The insulating layer 5 is a crosslinked polyethylene insulating layer. The cable core belting layer 2 is a polyester belting layer. The sheath layer 3 is a polyvinyl chloride sheath layer. The conductor wire core 4 is a fifth annealed soft copper conductor wire core.

Claims

1. The utility model provides a flexible cable is dragged in tensile, includes 4 cable cores (1), and 4 cable cores (1) have cable core band layer (2) and restrictive coating (3) outward according to the preface cladding, and every cable core (1) has conductor sinle silk (4), and outer cladding of conductor sinle silk (4) has insulating layer (5), its characterized in that: the cable is characterized in that filler (6) is filled in gaps formed among the 4 cable cores (1), and an aramid yarn woven armor layer (7) is further arranged between the cable core belting layer (2) and the sheath layer (3).

2. The pull-resistant flexible cable of claim 1, wherein: the filler (6) is a filling rope.

3. The pull-resistant flexible cable of claim 2, wherein: the filling rope is a polypropylene filling rope.

4. The pull-resistant flexible cable of claim 1, wherein: the insulating layer (5) is a crosslinked polyethylene insulating layer.

5. The pull-resistant flexible cable of claim 1, wherein: the cable core belting layer (2) is a polyester belting layer.

6. The pull-resistant flexible cable of claim 1, wherein: the sheath layer (3) is a polyvinyl chloride sheath layer.

7. The pull-resistant flexible cable of claim 1, wherein: the conductor wire core (4) is a fifth annealed soft copper conductor wire core.