CN214956065U

CN214956065U - Flexible tensile type polyvinyl chloride insulated shielding wire

Info

Publication number: CN214956065U
Application number: CN202023247554.1U
Authority: CN
Inventors: 蔡华聪
Original assignee: Hangzhou Yanqing Technology Co ltd
Current assignee: Hangzhou Yanqing Technology Co ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-11-30
Anticipated expiration: 2030-12-29

Abstract

The utility model discloses a flexible tensile type polyvinyl chloride insulated shielding wire, which comprises three conductors and an outer protective layer wrapping the conductors, wherein the insulated shielding wire also comprises a hemp rope, and the three conductors are hinged with each other by winding the hemp rope; the conductor is sequentially provided with a copper core, an insulating layer, a first shielding layer and an inner sheath layer from inside to outside, wherein the first shielding layer is a metal film; the outer protective layer is sequentially provided with a first outer protective sleeve, a second shielding layer and a second outer protective sleeve from inside to outside, and the first outer protective sleeve and the second outer protective sleeve are both made of polyvinyl chloride materials; the space between the inner sheath layer and the first outer sheath pipe is filled with the poly (tetramethylene terephthalate) fiber. The utility model discloses poor scheduling problem improves to current cable tensile strength. The utility model has the advantages of good flexibility, good tensile property, long service life and the like.

Description

Flexible tensile type polyvinyl chloride insulated shielding wire

Technical Field

The utility model relates to the technical field of cables, especially, relate to a flexible tensile type polyvinyl chloride insulated shielding line.

Background

The wire and cable industry is the second industry in China next to the automobile industry, and both the product variety satisfaction rate and the domestic market share rate exceed 90%. The cable may be classified into a power cable, a communication cable, a control cable, and the like according to its use.

The cable in the prior art usually can set up the steel band armor parcel in order to guarantee life and mechanical strength at the outer jacket, therefore leads to its tensile strength poor, can be because the not enough easy fracture of flexibility when applying in the drag chain motion system, in power transmission material and the signal transmission carrier to can accelerate the corruption of cable, thereby reduced the life of cable.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide a flexible tensile type polyvinyl chloride insulated shielding line to solve the technical problem of cable tensile strength among the prior art subalternation.

The utility model discloses a realize through following technical scheme: the utility model discloses a flexible tensile type polyvinyl chloride insulated shielding wire, which comprises three conductors and an outer protective layer wrapping the conductors, wherein the insulated shielding wire also comprises a hemp rope, and the three conductors are hinged with each other around the hemp rope;

the conductor is sequentially provided with a copper core, an insulating layer, a first shielding layer and an inner sheath layer from inside to outside, and the first shielding layer is a metal film;

the outer protective layer is sequentially provided with a first outer protective sleeve, a second shielding layer and a second outer protective sleeve from inside to outside, and the first outer protective sleeve and the second outer protective sleeve are both made of polyvinyl chloride materials;

and a part between the inner sheath layer and the first outer sheath pipe is filled with the poly (tetramethylene terephthalate) fiber.

Further, the inner sheath layer is made of polyvinyl chloride materials.

The polyvinyl chloride material has good mechanical property and high tensile strength, and the inner sheath layer made of the polyvinyl chloride material can improve the tensile strength of the conductor. The performance of the product is optimized.

Further, the thickness of the inner sheath layer is 0.15 mm.

The arrangement of 0.15mm enables the inner sheath layer to be conveniently extruded in process, and meanwhile, the mechanical property and the electrical property of the sheath can be basically achieved, and the material use cost is reduced in a certain range.

Further, the second shielding layer is a galvanized copper wire mesh.

The galvanized copper wire mesh has good shielding performance, and has good tensile property while promoting the shielding performance of the product.

Further, the thickness of first oversheath layer is 0.15mm, the thickness of second oversheath layer is 0.2 mm.

The thicknesses of 0.15mm and 0.2mm can facilitate the processing and extrusion of the first outer sheath layer and the second outer sheath layer; in addition, the thickening setting of the outer restrictive coating of second can improve the wear resistance of cable, prevents that the outer restrictive coating of second from pulling the use at the cable and breaking.

The utility model discloses a flexible tensile type polyvinyl chloride insulated shielding wire, compared with the prior art, the roundness of the cable can be guaranteed by the filled poly (tetramethylene terephthalate) fiber, when the twist shape of the cable surface is avoided when the first outer sheath layer is extruded, the poly (tetramethylene terephthalate) fiber has good elasticity, the tensile property of the internal structure of the whole cable can be improved by the cooperation between the poly (tetramethylene terephthalate) fiber and the hemp rope, and the flexibility is optimized; in addition, polyvinyl chloride material has better mechanical properties, and tensile strength is big, adopts the polyvinyl chloride material to make first outer protecting pipe and second outer protecting pipe respectively and has further improved the utility model discloses a flexibility and pull resistance have prolonged the life of this product.

Drawings

Fig. 1 is a structural sectional view of the present invention.

The attached drawings are marked as follows: 1. a conductor; 2. an outer jacket; 3. hemp ropes; 4. a copper core; 5. a first shielding layer; 6. an inner jacket layer; 7. a first outer jacket tube; 8. a second shielding layer; 9. a second outer jacket tube; 10. poly (tetramethylene terephthalate) fibers.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.

Example 1

As shown in fig. 1, embodiment 1 discloses a flexible tensile type polyvinyl chloride insulated shielding wire, referring to fig. 1, which includes three conductors 1 and an outer sheath 2 wrapping the conductors 1, the insulated shielding wire further includes a hemp rope 3, and the three conductors 1 are hinged to each other around the hemp rope 3;

the conductor 1 is sequentially provided with a copper core 4, an insulating layer, a first shielding layer 5 and an inner sheath layer 6 from inside to outside, wherein the first shielding layer 5 is a metal film;

the outer protective layer 2 is sequentially provided with a first outer protective sleeve 7, a second shielding layer 8 and a second outer protective sleeve 9 from inside to outside, and the first outer protective sleeve 7 and the second outer protective sleeve are both made of polyvinyl chloride materials;

between the inner sheath layer 6 and the first outer sheath tube 7, poly (tetramethylene terephthalate) fibers 10 are filled. When filling the ptfe fibers 10, glue may be applied to the inner jacket layer 6 to facilitate adhesion of the ptfe fibers 10.

Further, the inner sheath layer 6 is made of polyvinyl chloride material.

Further, the thickness of the inner sheath layer 6 is 0.15 mm.

Further, the second shielding layer 8 is a galvanized copper wire mesh.

Further, the thickness of the first outer sheath layer is 0.15mm, and the thickness of the second outer sheath layer is 0.2 mm.

Claims

1. The flexible tensile type polyvinyl chloride insulation shielding wire is characterized by comprising three conductors (1) and an outer protective layer (2) wrapping the conductors (1), and further comprising hemp ropes (3), wherein the three conductors (1) are hinged with each other around the hemp ropes (3);

the conductor (1) is sequentially provided with a copper core (4), an insulating layer, a first shielding layer (5) and an inner sheath layer (6) from inside to outside, and the first shielding layer (5) is a metal film;

the outer protective layer (2) is sequentially provided with a first outer protective sleeve (7), a second shielding layer (8) and a second outer protective sleeve (9) from inside to outside, and the first outer protective sleeve (7) and the second outer protective sleeve are both made of polyvinyl chloride materials;

and a poly (tetramethylene terephthalate) fiber (10) is filled between the inner sheath layer (6) and the first outer sheath tube (7).

2. The flexible tension-resistant insulating shielding line of polyvinyl chloride according to claim 1, wherein the inner sheath layer (6) is made of polyvinyl chloride material.

3. The flexible tension-type polyvinyl chloride insulation shield wire according to claim 1, wherein the thickness of the inner sheath layer (6) is 0.15 mm.

4. The flexible tension-resistant insulating shielding wire of polyvinyl chloride according to claim 1, wherein the second shielding layer (8) is a galvanized copper wire mesh.

5. The flexible tension-type insulated shielding wire of polyvinyl chloride according to any one of claims 1 to 4, wherein the thickness of the first outer sheath layer is 0.15mm, and the thickness of the second outer sheath layer is 0.2 mm.