CN210516290U

CN210516290U - Tensile cable

Info

Publication number: CN210516290U
Application number: CN201921882266.8U
Authority: CN
Inventors: 马晓博; 孙孝林; 孙五州; 孙林娜
Original assignee: Henan Hengsheng Tongda Wire And Cable Co Ltd
Current assignee: Henan Hengsheng Tongda Wire And Cable Co Ltd
Priority date: 2019-11-04
Filing date: 2019-11-04
Publication date: 2020-05-12
Anticipated expiration: 2029-11-04

Abstract

The utility model discloses a tensile cable, which comprises an electric core and an insulating layer; the battery core comprises a wire harness, and a tensile wire is arranged in the center of the wire harness; the insulating layer is coated outside the battery core; the insulating layer is coated with an elastic tensile layer, and the elastic tensile layer is coated with a wear-resistant layer; wherein; the elastic tensile layer comprises an elastic built-in layer and an elastic external layer, an elastic filling layer is arranged between the elastic built-in layer and the elastic external layer, and a plurality of cavities are formed in the elastic filling layer. The utility model greatly improves the protection of the battery core and the insulating layer and ensures the use safety of the cable by coating the insulating layer outside the battery core and coating the elastic tensile layer and the wear-resistant layer outside the insulating layer; and the utility model discloses a tensile cord and elasticity tensile layer structure at electricity core middle part improve the holistic stretching resistance of cable to set up wearing layer support bar and improve wear resistance, extension cable life.

Description

Tensile cable

Technical Field

The utility model relates to the technical field of cables, particularly, be a tensile cable.

Background

The cable consists of single-strand or multi-strand wires and an insulating layer and is used for connecting a circuit, an electric appliance and the like; with the rise of urban construction, cables are more and more widely used, and different use characteristics and requirements are provided for power cables according to different application occasions of the power cables, if the power cables are required to have a series of excellent performances such as high strength, tensile strength, wear resistance, torsion resistance, bending resistance, oil resistance, ultraviolet resistance, acid and alkali resistance, corrosion resistance, water resistance, difficulty in breaking of core wires, no cracking of sheaths and the like, otherwise, in the production operation process, due to the problems of structural strength of power electricity and the like, the insulation layers or cable cores are easily damaged and broken, and even safety accidents are caused.

In view of this, the present invention is especially provided.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model provides a tensile cable to do benefit to and improve the safety in utilization, increase of service life.

In order to realize the purpose, the technical scheme of the utility model is that:

a tensile cable comprises a battery core and an insulating layer; the battery core comprises a wire harness, and a tensile wire is arranged in the center of the wire harness; the insulating layer is coated outside the battery core; the insulating layer is coated with an elastic tensile layer, and the elastic tensile layer is coated with a wear-resistant layer; wherein; the elastic tensile layer comprises an elastic built-in layer and an elastic external layer, an elastic filling layer is arranged between the elastic built-in layer and the elastic external layer, and a plurality of cavities are formed in the elastic filling layer.

Further, in the tensile cable, the wire harness in the battery core is formed by a plurality of copper wires, and the tensile wire is a steel wire wrapped with a protective layer; the wire harnesses are uniformly distributed around the tensile wires.

Further, in the tensile cable, the protective layer is a PVC material layer.

Furthermore, in the tensile cable, the cross section of the elastic filling layer is in a grid shape, and a plurality of uniform cavities are formed.

Furthermore, in the tensile cable, a sponge filling body is arranged in the cavity of the elastic filling layer.

Furthermore, in the tensile cable, the elastic tensile layer comprises an elastic built-in layer, an elastic built-out layer and an elastic filling layer which are all rubber material layers; the elastic built-in layer, the elastic built-out layer and the elastic filling layer are integrally formed or fixed in an adhesion mode.

Furthermore, in the tensile cable, a plurality of grooves are uniformly distributed on the wear-resistant layer, and rubber support bars with cross sections in the shape of the Chinese character 'tu' are embedded into the grooves.

Furthermore, in the tensile cable, the support strip is formed by horizontally extending two horizontal rubber strips with different lengths from one rubber strip to two sides at the middle part and the lower part; the bottom of the groove is wide, and the opening of the groove is narrow; the longer horizontal rubber strip of the two horizontal rubber strips is embedded into the groove, and the shorter horizontal rubber strip is positioned outside the notch; the upper part of the rubber strip protrudes out of the surface of the wear-resistant layer.

Further, in the tensile cable, the insulating layer is a halogen-free flame-retardant polyolefin material layer.

Further, in the tensile cable, the wear-resistant layer is a halogen-free flame-retardant weather-resistant polyolefin or polyurethane material layer.

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

the utility model greatly improves the protection of the battery core and the insulating layer and ensures the use safety of the cable by coating the insulating layer outside the battery core and coating the elastic tensile layer and the wear-resistant layer outside the insulating layer; and the utility model discloses a tensile cord and elasticity tensile layer structure at electricity core middle part improve the holistic stretching resistance of cable to set up wearing layer support bar and improve wear resistance, extension cable life.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a schematic cross-sectional view of an embodiment of the tensile cable of the present invention;

FIG. 2 is a schematic cross-sectional view of the elastic tensile layer shown in FIG. 1;

FIG. 3 is an exploded view of the wear layer shown in FIG. 1;

in the figure, 1-cell; 10-a wire harness; 11-a tensile wire; 12-a protective layer;

2-an insulating layer;

3-an elastic tensile layer; 30-an elastic build-up layer; 31-an elastic outer layer; 32-an elastomeric filling layer; 33-a cavity;

4-a wear resistant layer; 40-grooves; 41-support bar; 42-rubber strip; 43-horizontal rubber strips; 44-horizontal rubber strips; 45-groove bottom; 46-notches.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

As shown in fig. 1 to 3, a tensile cable includes a battery core 1 and an insulating layer 2; the battery core 1 comprises a wire harness 10, and a tensile wire 11 is arranged in the center of the wire harness 10; the insulating layer 2 is coated outside the battery core 1; the insulating layer 2 is externally coated with an elastic tensile layer 3, and the elastic tensile layer 3 is externally coated with a wear-resistant layer 4; wherein; the elastic tensile layer 3 comprises an elastic built-in layer 30 and an elastic external layer 31, an elastic filling layer 32 is arranged between the elastic built-in layer 30 and the elastic external layer 31, and a plurality of cavities 33 are arranged in the elastic filling layer 32.

The utility model provides an in one embodiment, wire pencil 10 in electric core 1 is the pencil that a plurality of copper lines formed, tensile cord 11 has the steel wire of protective layer 12 for outside parcel, protective layer 12 is the PVC material layer. The tensile wires 11 are arranged in the center of the wire harness 10, the wire harness 10 is uniformly distributed around the tensile wires 11, and the plastic is extruded on the wire harness 10 by using an extruding device to form the insulating layer 2.

Because the steel wire has stronger tensile ability for copper wire harness, copper wire harness has stronger extensibility for the steel wire, so when receiving outside pulling force, bigger pulling force can be born by steel wire tensile stretch-cord 11, does benefit to then to make whole cable conductor have stronger stretching resistance.

The insulating layer 2 is preferably a halogen-free flame-retardant polyolefin material layer, has good flame retardance, does not contain halogen, and is green and environment-friendly.

In this embodiment, the elastic tensile layer 3 includes an elastic inner layer 30 and an elastic outer layer 31 both made of rubber material, and has high elasticity, impact resistance and wear resistance, and the elastic inner layer 30 covers the insulating layer 2. An elastic filling layer 32 is arranged between the elastic internal layer 30 and the elastic external layer 31, and the cross section of the elastic filling layer 32 is in a grid shape to form a plurality of uniform cavities 33.

The elastic filling layer 32 is made of rubber materials, and the elastic built-in layer 30, the elastic built-out layer 31 and the elastic filling layer 32 can be integrally formed or fixed in an adhesion mode.

Elastic tensile layer 3 adopts the rubber materials that has high elasticity, and inner structure goes out elasticity cavity 33, when receiving outside pulling force or pressure, has certain flexible, deformation space and fine restoring force, then improves the tensile ability of cable.

Further, be equipped with the sponge obturator (not sign in the figure) in the cavity of elasticity filling layer 32, the sponge obturator constitutes for the sponge, and the sponge can choose for use that inside hole is big, the little sponge of density has the cushioning effect of certain degree when elasticity filling layer 32 warp, and does not hinder the cable heat dissipation.

Furthermore, the wear-resistant layer 4 is a halogen-free flame-retardant weather-resistant polyolefin or polyurethane material layer, and has good corrosion resistance and wear resistance. The wear-resistant layer 4 is evenly provided with a plurality of grooves 40, rubber support bars 41 with cross sections in the shape of 'soil' are embedded in the grooves 40, the support bars shown in fig. 3 are separated from the wear-resistant layer, the support bars 41 are formed by horizontally extending a short horizontal rubber strip (43, 44) and a long horizontal rubber strip (43, 44) from the middle part and the lower part of one rubber strip 42 to two sides, the bottoms of the grooves 40 are wide, the notches 46 are narrow, the longer horizontal rubber strips 44 are embedded in the grooves 40, the shorter horizontal rubber strips 43 are positioned outside the notches 46, the whole support bars 41 can be clamped in the grooves 40, the upper parts of the rubber strips 42 protrude out of the surface of the wear-resistant layer 4, friction between the wear-resistant layer and the ground can be reduced, the wear resistance of a cable is improved, and the service.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. A tensile cable is characterized by comprising a battery cell and an insulating layer; the battery core comprises a wire harness, and a tensile wire is arranged in the center of the wire harness; the insulating layer is coated outside the battery core; the insulating layer is coated with an elastic tensile layer, and the elastic tensile layer is coated with a wear-resistant layer; wherein; the elastic tensile layer comprises an elastic built-in layer and an elastic external layer, an elastic filling layer is arranged between the elastic built-in layer and the elastic external layer, and a plurality of cavities are formed in the elastic filling layer.

2. The tensile cable according to claim 1, wherein the wire harness in the electric core is a harness formed by a plurality of copper wires, and the tensile wire is a steel wire externally wrapped with a protective layer; the wire harnesses are uniformly distributed around the tensile wires.

3. A tensile cable in accordance with claim 2, wherein said protective layer is a layer of PVC material.

4. The tension cable of claim 1, wherein the cross-section of the elastic filler layer is in a grid shape, and a plurality of uniform cavities are formed.

5. A tensile cable in accordance with claim 4, wherein the cavity of the elastic filler layer is filled with a sponge filler.

6. The tension-resistant cable according to claim 5, wherein the elastic tension-resistant layer comprises an elastic inner layer and an elastic outer layer, and the elastic filling layer is a rubber material layer; the elastic built-in layer, the elastic built-out layer and the elastic filling layer are integrally formed or fixed in an adhesion mode.

7. The tensile cable of claim 1, wherein a plurality of grooves are uniformly distributed on the wear-resistant layer, and supporting bars with a cross section in a shape like a Chinese character 'tu' are embedded in the grooves.

8. The tension-resistant cable according to claim 7, wherein the supporting bars are formed by horizontally extending two horizontal rubber bars with different lengths from one rubber bar to two sides at the middle part and the lower part; the bottom of the groove is wide, and the opening of the groove is narrow; the longer horizontal rubber strip of the two horizontal rubber strips is embedded into the groove, and the shorter horizontal rubber strip is positioned outside the notch; the upper part of the rubber strip protrudes out of the surface of the wear-resistant layer.

9. The tensile cable of any one of claims 1-8, wherein said insulating layer is a layer of halogen-free flame retardant polyolefin material.

10. The tensile cable of any one of claims 1-8, wherein said abrasion resistant layer is a layer of halogen-free flame retardant weatherable polyolefin or polyurethane material.