CN212809854U - Tensile electric wire - Google Patents

Abstract

The utility model discloses a tensile electric wire, which comprises a protective sleeve and a core wire, wherein three core wires are arranged inside the protective sleeve, a filling layer is filled in the vacant part inside the protective sleeve, the surface of the outer wall of the core wire is uniformly and fixedly connected with a plurality of reinforcing strips, every two adjacent reinforcing strips are mutually and fixedly connected, a reinforcing steel wire is embedded inside each reinforcing strip, and the protective sleeve consists of a protective layer, a tensile layer, a flame-retardant layer and an insulating layer. The flame-retardant layer is a member made of glass fiber, which can increase the fire resistance and flame retardancy of the protective sheath.

Description

Tensile electric wire

Technical Field

The utility model relates to an electric wire specifically is a tensile electric wire.

Background

With the development of science and technology and the continuous progress of industrial technology, the use amount of electric wires is increasing day by day, the electric wire is usually a cable similar to a rope formed by stranding a plurality of or a plurality of groups of wires, each group of wires are insulated from each other and are usually twisted around a center, a highly insulated covering layer is wrapped outside the whole electric wire, and the distance between target points is far when the electric wire is laid, so that the influence of the external environment of a dead hinge is large, and the tensile resistance of the electric wire per se needs to be enhanced when the electric wire is remanufactured.

In the existing electric wire remanufacturing process, only a conducting wire and an insulating layer are arranged, the tensile resistance is low, the electric wire is influenced by external wind power, is easy to break and is not suitable for being laid for a long distance.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a tensile electric wire to in solving the current electric wire refabrication in-process that proposes in the above-mentioned background art, only wire and insulating layer, the tensile is lower, receives external wind-force to influence, and easy fracture is unsuitable for the problem of longer distance laying.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a tensile electric wire, includes protective sheath and heart yearn, the inside of protective sheath is equipped with three heart yearns, the inside vacant department of protective sheath is filled there is the filling layer, the even fixedly connected with a plurality of enhancement strips in outer wall surface of heart yearn, fixed connection each between per two adjacent enhancement strips, each the inside of enhancement strip all inlays and is equipped with the enhancement steel wire line, the protective sheath comprises protective layer, tensile layer, fire-retardant layer and insulating layer, the inboard of protective layer and the outside fixed connection on tensile layer, the inboard of tensile layer and the outside fixed connection on fire-retardant layer, the inboard of fire-retardant layer and the outside fixed connection of insulating layer, two the heart yearn comprises conductor, insulating cover and tensile rope line, the inside of insulating cover sets up the conductor, the center of the conductor inlays and is equipped with the tensile rope line.

As an optimal technical scheme of the utility model, three the heart yearn is central symmetry distribution in the inside of protective sheath, the component that the conductor body was made by a plurality of copper wire bundles, the component that the tensile cord was made by polymer polyethylene material.

As an optimal technical scheme of the utility model, strengthen strip and protective layer formula structure as an organic whole, and strengthen the component that strip and protective layer were made by flexible plastic.

As an optimal technical scheme of the utility model, the network structure of the component of making is woven for the aramid fiber to the tensile layer, the component that fire-retardant layer was made by glass fiber, the component that insulating layer and insulating cover were made by polyvinyl chloride.

As an optimized technical proposal of the utility model, the filling layer is a polypropylene tearing belt.

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

1. the reinforcing strips are fixedly connected to the outer wall of the protective sleeve, the tensile property of the protective sleeve can be improved, the tensile property of the whole electric wire is improved, reinforcing steel wires are embedded in the reinforcing strips, the strength of the reinforcing strips is further improved, the tensile layer of a member woven by aramid fibers can enable the whole protective sleeve to have high tensile property, the member made of the aramid fibers is corrosion-resistant, the service life is prolonged, the fire resistance and the fire resistance of the protective sleeve can be improved due to the fact that the flame-retardant layer is made of glass fibers, and short circuit of the electric wire due to fire is avoided;

2. the filling layer is filled the inside space of protective sheath, guarantee that the electric wire tangent plane is more round, there is the gap in the inside that can avoid the protective sheath, lead to the electric wire not closely knit, thereby lead to the heart yearn at the inside unstability of protective sheath, the wearing and tearing that increase the heart yearn reduce life conductor by the member that a plurality of copper wire bundles closed and make, can reduce the holistic resistance of conductor, thereby reduce the calorific capacity of the conductor, the tensile cord line of the member that the polymer polyethylene material was made, intensity has stronger pull resistance greatly, and chemical property is stable difficult ageing, long service life.

Drawings

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

FIG. 2 is a schematic structural view of the protective cover of the present invention;

fig. 3 is the schematic view of the core wire structure of the present invention.

In the figure: 1. a protective sleeve; 2. a core wire; 3. a filling layer; 4. a reinforcing strip; 5. reinforcing the steel wire; 6. a protective layer; 7. a tensile layer; 8. a flame retardant layer; 9. an insulating layer; 10. a lead body; 11. an insulating sleeve; 12. tensile cord.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the utility model provides a tensile electric wire, which comprises a protective sleeve 1 and a core wire 2, three core wires 2 are arranged inside the protective sleeve 1, a filling layer 3 is filled in the vacant part inside the protective sleeve 1, a plurality of reinforcing strips 4 are uniformly and fixedly connected with the outer wall surface of the core wire 2, every two adjacent reinforcing strips 4 are fixedly connected with each other, a reinforcing steel wire 5 is embedded inside each reinforcing strip 4, the protective sleeve 1 is composed of a protective layer 6, a tensile layer 7, a flame-retardant layer 8 and an insulating layer 9, the inner side of the protective layer 6 is fixedly connected with the outer side of the tensile layer 7, the inner side of the tensile layer 7 is fixedly connected with the outer side of the flame-retardant layer 8, the inner side of the flame-retardant layer 8 is fixedly connected with the outer side of the insulating layer 9, two core wires 2 are composed of a wire body 10, an insulating sleeve 11 and a tensile rope 12, a tensile cord 12 is embedded in the center of the wire body 10.

Preferably, the three core wires 2 are distributed in the protective cover 1 in a central symmetry manner, the conductor body 10 is a member made of a plurality of copper wires, the tensile cord 12 is a member made of a high polymer polyethylene material, the three core wires 2 are distributed in the protective cover 1 in a central symmetry manner, so that the three core wires 2 are distributed in the protective cover 1 more uniformly, thereby the gap in the protective sleeve 1 is more evenly and conveniently filled, the copper wire has good conductivity and small resistance, the wire body 10 is a member made of a plurality of copper wire bundles, the resistance of the whole wire body 10 can be reduced, thereby reducing the heat generation of the lead body 10, the tensile cord 12 is made of a high molecular polyethylene material, the tensile cord 12 of the high molecular polyethylene material has high strength and strong tensile property, and the chemical property is stable, the aging is not easy, the service life is long, and the tensile property of the core wire 2 can be improved.

Preferably, strengthen strip 4 and protective layer 6 formula structure as an organic whole, and strengthen the component that strip 4 and protective layer 6 were made by flexible plastic, strengthen strip 4 and protective layer 6 formula structure as an organic whole, can improve the connection stability between strip 4 and the protective layer 6, strengthen strip 4 fixed connection and can improve protective sheath 1's tensile resistance at protective sheath 1's outer wall to improve the holistic tensile resistance of electric wire.

Preferably, tensile layer 7 is the network structure of the component of weaving the preparation by aramid fiber, fire-retardant layer 8 is by the component that glass fiber made, insulating layer 9 and insulating cover 11 are by the component that polyvinyl chloride made, aramid fiber, a novel high-tech synthetic fiber, have the superhigh strength, high temperature resistant, acid and alkali resistant, light in weight, good performance such as insulating and ageing resistance, component tensile layer 7 of weaving the preparation by aramid fiber can make protective sheath 1 whole have stronger pull resistance, and corrosion-resistant improvement life, glass fiber insulating nature is good, the heat resistance is strong, corrosion resistance is good, mechanical strength is high, fire-retardant layer 8 is by the component that glass fiber made, can increase protective sheath 1's refractivity and fire resistance, avoid the electric wire to cause the short circuit because of the conflagration, polyvinyl chloride insulating properties is good, and chemical property is stable, long service life.

Preferably, filling layer 3 tears the area for polypropylene, and filling layer 3 fills the inside space of protective sheath 1, guarantees that the electric wire tangent plane is more round, avoids protective sheath 1 twist shape to appear, avoids protective sheath 1's inside to have the gap, leads to the electric wire not closely knit to lead to the heart yearn at the inside unstability of protective sheath 1, increase heart yearn 2's wearing and tearing and reduce life.

When the tensile electric wire is used in detail, the utility model relates to a tensile electric wire, the reinforcing strip 4 and the protective layer 6 outside the protective sleeve 1 are of an integral structure, the connection stability between the reinforcing strip 4 and the protective layer 6 can be improved, the reinforcing strip 4 is fixedly connected on the outer wall of the protective sleeve 1, the tensile property of the protective sleeve 1 can be improved, thereby the overall tensile property of the electric wire is improved, the reinforcing steel wire 5 is embedded inside the reinforcing strip, the strength of the reinforcing strip 4 is further improved, the aramid fiber is a novel high-tech synthetic fiber, and has the excellent performances of ultrahigh strength, high temperature resistance, acid and alkali resistance, light weight, insulation, ageing resistance and the like, the member tensile layer 7 woven by the aramid fiber can enable the protective sleeve 1 to have stronger tensile property on the whole, and the corrosion resistance is improved, the service life is prolonged, the glass fiber insulating property is good, the heat resistance is strong, the flame-retardant layer 8 is a member made of glass fiber, the fire resistance and the flame retardance of the protective sleeve 1 can be increased, short circuit of an electric wire caused by fire is avoided, the insulating property of polyvinyl chloride is good, the insulating layer 9 and the insulating sleeve 11 of the member made of polyvinyl chloride are stable in chemical property and long in service life, the filling layer 3 fills the gap inside the protective sleeve 1, the tangent plane of the electric wire is ensured to be more round, the twisted shape of the protective sleeve 1 is avoided, gaps are avoided inside the protective sleeve 1, the electric wire is not compact, the core wires are unstable inside the protective sleeve 1, the abrasion of the core wires 2 is increased, the service life of the three core wires 2 is prolonged, the three core wires 2 are distributed in the protective sleeve 1 in a central symmetry mode, the three core wires 2 are distributed in the protective sleeve 1 more uniformly, the gap inside the protective sleeve 1 is filled more uniformly and conveniently, the electric conductivity of the copper, can reduce the holistic resistance of wire body 10 to reduce the calorific capacity of wire body 10, tensile cord 12 is the component of making by the polymer polyethylene material, and the tensile cord 12 of the component that the polymer polyethylene material was made, intensity have stronger tensile nature greatly, and the stable difficult ageing of chemical property moreover, long service life can improve the tensile nature of heart yearn 2.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims (5)

1. A tensile electric wire comprises a protective sleeve (1) and core wires (2), and is characterized in that three core wires (2) are arranged inside the protective sleeve (1), a filling layer (3) is filled in a vacant position inside the protective sleeve (1), a plurality of reinforcing strips (4) are uniformly and fixedly connected to the surface of the outer wall of each core wire (2), every two adjacent reinforcing strips (4) are mutually and fixedly connected, a reinforcing steel wire (5) is embedded inside each reinforcing strip (4), the protective sleeve (1) is composed of a protective layer (6), a tensile layer (7), a flame-retardant layer (8) and an insulating layer (9), the inner side of the protective layer (6) is fixedly connected with the outer side of the tensile layer (7), the inner side of the tensile layer (7) is fixedly connected with the outer side of the flame-retardant layer (8), and the inner side of the flame-retardant layer (8) is fixedly connected with the outer side of the insulating layer (9), two heart yearns (2) constitute by conductor (10), insulating cover (11) and tensile rope line (12), the inside of insulating cover (11) sets up conductor (10), the center of conductor (10) is inlayed and is equipped with tensile rope line (12).

2. A tensile electric wire according to claim 1, wherein: the three core wires (2) are distributed in the protective sleeve (1) in a central symmetry manner, the wire body (10) is a member made of a plurality of copper wire bundles, and the tensile cord (12) is a member made of a high polymer polyethylene material.

3. A tensile electric wire according to claim 1, wherein: the reinforcing strip (4) and the protective layer (6) are of an integrated structure, and the reinforcing strip (4) and the protective layer (6) are members made of flexible plastics.

4. A tensile electric wire according to claim 1, wherein: the tensile layer (7) is a net structure of a member made of aramid fiber in a weaving mode, the flame-retardant layer (8) is a member made of glass fiber, and the insulating layer (9) and the insulating sleeve (11) are both made of polyvinyl chloride.

5. A tensile electric wire according to claim 1, wherein: the filling layer (3) is a polypropylene tearing tape.

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