CN213339755U

CN213339755U - Cable with improved insulation

Info

Publication number: CN213339755U
Application number: CN202022278186.0U
Authority: CN
Inventors: 王世海
Original assignee: Jiangsu Hongfei Optoelectronic Group Co ltd
Current assignee: Jiangsu Hongfei Optoelectronic Group Co ltd
Priority date: 2020-10-13
Filing date: 2020-10-13
Publication date: 2021-06-01
Anticipated expiration: 2030-10-13

Abstract

The utility model discloses a cable, including overcoat inoxidizing coating and cross frame strip, overcoat inoxidizing coating internal fixation is equipped with the cross frame strip, forms four installation chambeies between cross frame strip and the overcoat inoxidizing coating, and the installation is equipped with the skeleton strip in the installation chamber, and the holding strip on the skeleton strip presss from both sides tightly between two liang has the heart yearn, and the intussuseption of installation chamber is filled and is equipped with fire-retardant layer. The utility model provides a cable, the crushing resistance is strong, and flame retardant efficiency is good, is worth promoting.

Description

Cable with improved insulation

Technical Field

The utility model belongs to the cable field, concretely relates to cable.

Background

Cables are typically rope-like cables made up of several wires or groups of wires stranded, often aerial or installed underground and underwater, for telecommunication or power transmission.

At present, when the cable on the market receives external pressure, the atress is inhomogeneous, and the atress between the heart yearn can influence each other, and other heart yearns are pressed simultaneously when leading to partial heart yearn pressurized, lead to the compressive resistance of whole cable poor, lead to cable transmission power to reduce, very easily destroy the cable when consequently external force extrudees, influence the life of cable.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model provides a cable, the crushing resistance is strong, and flame retardant efficiency is good, is worth promoting.

The utility model discloses a realize through following technical scheme: the utility model provides a cable, includes overcoat inoxidizing coating and cross frame strip, the overcoat inoxidizing coating internal fixation is equipped with the cross frame strip, the cross frame strip with form four installation cavities between the overcoat inoxidizing coating, the installation is equipped with the skeleton strip in the installation cavity, the holding strip on the skeleton strip presss from both sides tightly between two liang has the heart yearn, the intussuseption of installation cavity is equipped with fire-retardant layer.

The outer sleeve protective layer is sequentially provided with a tensile layer and an outer surface layer from inside to outside, a groove is formed in the outer surface layer along the circumferential direction, and an elastic layer is arranged in the groove.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses form four installation cavities between cruciform frame strip and the overcoat inoxidizing coating, each other does not influence between the installation cavity, can be better avoid the atress influence of heart yearn in different installation cavities, and the installation is equipped with the skeleton strip in every installation cavity, and the holding strip on the skeleton strip presss from both sides tightly between two liang has the heart yearn, further can be better when making every heart yearn atress in every installation cavity avoid the mutual influence under the cushioning effect of skeleton strip, improved the crushing resistance of whole cable, the cable transmission power who has improved;

2. the flame-retardant layer is filled in the installation cavity of the utility model, which can be matched with the skeleton strip to better stabilize the core wire and simultaneously play the flame-retardant effect;

3. the utility model discloses the pull resistance of tensile layer multiplicable cable in the overcoat inoxidizing coating, and the elastic layer that is equipped with in the outer surface layer upper groove can slow down the cable on the one hand and receive outside extruded power, simultaneously, can make the cable reduce the stress that produces when expend with heat and contract with cold at high temperature or low temperature, avoid cable overcoat inoxidizing coating atress and split, prolonged the life of cable.

Drawings

Fig. 1 is a front view of the present invention;

fig. 2 is a schematic view of the structure at a-a in fig. 1.

In the drawings: 1. a protective layer is sleeved; 11. a tensile layer; 12. an outer surface layer; 2. a cross frame strip; 3. a mounting cavity; 4. a skeleton bar; 5. a core wire; 6. a flame retardant layer; 7. a groove; 8. an elastic layer.

Detailed Description

As shown in figures 1 to 2 in the attached drawings of the specification, a cable comprises an outer sleeve protective layer 1 and a cross frame strip 2, the outer sleeve protective layer 1 is internally fixed with the cross frame strip 2, the cross frame strip is made of elastic flame retardant materials, the impact of force can be relieved when the cable is stressed, the flame retardant effect is good, four installation cavities 3 are formed between the cross frame strip 2 and the outer sleeve protective layer 1, framework strips 4 are installed in the installation cavities 3, the framework strips 4 are made of high-elasticity rubber materials, core wires 5 are clamped between every two clamping strips on the framework strips 4, the core wires 5 are tightly attached to the two clamping strips, gaps are reserved between the core wires 5 and the joints of the two clamping strips, when the cable is stressed, the core wires 5 extrude the two clamping strips to enable the two clamping strips to be expanded under stress, further, buffered gaps are reserved between the core wires 5 and the joints of the two clamping strips, the flame retardant layer 6 is filled in the installation cavity 3, and can be matched with, and simultaneously has the flame-retardant effect.

Overcoat inoxidizing coating 1 is equipped with tensile layer 11 and outer surface layer 12 from interior to exterior in proper order, is equipped with recess 7 along week axial on the outer surface layer 12, is equipped with elastic layer 8 in the recess 7, can slow down the cable on the one hand and receive outside extruded power, simultaneously, can make the cable reduce the stress that produces when expanding with heat and contracting with cold at high temperature or low temperature, avoids cable overcoat inoxidizing coating atress and splits, has prolonged the life of cable.

In summary, the present invention is only a preferred embodiment, and is not intended to limit the scope of the present invention, and all equivalent changes and modifications of the shapes, structures, features and spirit described in the claims of the present invention should be included in the scope of the present invention.

Claims

1. A cable, characterized by: including overcoat inoxidizing coating (1) and cross frame strip (2), overcoat inoxidizing coating (1) internal fixation is equipped with cross frame strip (2), cross frame strip (2) with form four installation cavity (3) between overcoat inoxidizing coating (1), the installation is equipped with skeleton strip (4) in installation cavity (3), the holding strip on skeleton strip (4) presss from both sides tightly between two liang has heart yearn (5), the intussuseption of installation cavity (3) is filled and is equipped with fire-retardant layer (6).

2. A cable according to claim 1, wherein: the outer sleeve protective layer (1) is provided with a tensile layer (11) and an outer surface layer (12) from inside to outside in sequence, a groove (7) is formed in the outer surface layer (12) in the circumferential direction, and an elastic layer (8) is arranged in the groove (7).