CN215450969U

CN215450969U - High-strength polyolefin insulation outdoor twisted-pair cable for digital communication

Info

Publication number: CN215450969U
Application number: CN202121841000.6U
Authority: CN
Inventors: 沈小平; 刘书琴
Original assignee: Tongding Interconnection Information Co Ltd
Current assignee: Tongding Interconnection Information Co Ltd
Priority date: 2021-08-09
Filing date: 2021-08-09
Publication date: 2022-01-07
Anticipated expiration: 2031-08-09

Abstract

The invention provides a high-strength polyolefin insulation outdoor twisted-pair cable for digital communication, which comprises a cable main body part and at least one reinforcing structure arranged on the outer side of the cable main body part, wherein the reinforcing structure is connected with the cable main body part through a hanging strip; the cable comprises a cable body part, a cable tearing rope and a cable outer sheath, wherein the cable body part comprises a cable core, the cable tearing rope and the cable outer sheath outside the cable core, the cable core comprises a plurality of twisted wire pairs, and the cable tearing rope is arranged between the cable core and the cable outer sheath or arranged in the cable outer sheath; the reinforcing structure comprises a reinforcing piece and a reinforcing structure outer sheath outside the reinforcing piece. The cable is reasonable in structural design, the reinforcing structure can effectively improve the tensile strength and the bearing capacity of the cable, and the cable is prevented from being broken due to insufficient bearing in the installation and use processes.

Description

High-strength polyolefin insulation outdoor twisted-pair cable for digital communication

Technical Field

The invention belongs to the technical field of cable design and manufacture, and particularly relates to a high-strength polyolefin insulation outdoor twisted-pair cable for digital communication.

Background

In the prior art, four using environments of the cable without the inner sheath are overhead, namely, an HSYY (high speed YY), an HSYZ (high speed YZ), an HSYYP (high speed YYP) and an HSYZP (high speed YZ) mode, products with the four structures can be normally used in a common application scene, but the strength of a copper wire and the strength of an outer sheath are soft, so that the cable is difficult to apply to a scene needing bearing, the tensile capacity of a conventional cable is difficult to meet the bearing requirement, and particularly when the cable is applied outdoors, the cable is easy to break in the installation and use process. Therefore, there is a need for improvements to existing cables that increase the tensile and load-bearing capabilities.

Disclosure of Invention

In view of the above, the present invention provides a high strength polyolefin insulated outdoor twisted pair cable for digital communication, which is designed to overcome the defects in the prior art.

In order to achieve the purpose, the technical scheme of the invention is realized as follows:

a high-strength polyolefin insulation outdoor twisted-pair cable for digital communication comprises a cable main body part and at least one reinforcing structure arranged on the outer side of the cable main body part, wherein the reinforcing structure is connected with the cable main body part through a hanging strip;

the cable comprises a cable body part, a cable tearing rope and a cable outer sheath, wherein the cable body part comprises a cable core, the cable tearing rope and the cable outer sheath outside the cable core, the cable core comprises a plurality of twisted wire pairs, and the cable tearing rope is arranged between the cable core and the cable outer sheath or arranged in the cable outer sheath; the reinforcing structure comprises a reinforcing piece and a reinforcing structure outer sheath outside the reinforcing piece;

the cable outer sheath of the cable main body part and the reinforcing structure outer sheath of the reinforcing structure are connected into a whole through the hanging strip, and a protruding structure is arranged at the joint of the hanging strip and the cable main body part.

Further, the twisted wire pair comprises two insulated single wires twisted with each other, and each insulated single wire comprises a copper conductor and an insulating layer coated on the outer side of the copper conductor.

Further, the insulating layer is a polyolefin insulating layer.

Further, the cable outer sheath adopts a vinyl chloride sheath or a low-smoke halogen-free polyolefin sheath.

Further, the reinforcing structure outer sheath is a vinyl chloride sheath or a low-smoke halogen-free polyolefin sheath, and the sling is usually made of a vinyl chloride material or a low-smoke halogen-free polyolefin material which is consistent with the material of the outer sheath.

Further, the reinforcement comprises steel wires.

Further, the twisted wire pairs are separated by a framework, and each twisted wire is individually positioned in a separate space of the framework.

Furthermore, the cable core comprises four groups of twisted wire pairs, each twisted wire pair is separated from each other by a cross-shaped framework, and the tail end of the framework preferably protrudes out of the outer edge of the cable core so as to play a better protection role.

Further, the cable main part outside is equipped with 3 sets of additional strengthening along its circumferencial direction equipartition, and this 3 sets of additional strengthening are triangle-shaped and arrange, form splendid guard action to cable main part, and antitorque tensile strength is stronger, and cable main part is difficult for the collision to strike off the damage.

Compared with the prior art, the invention has the following advantages:

the cable is reasonable in structural design, the reinforcing structure can effectively improve the tensile strength and the bearing capacity of the cable, and the cable is prevented from being broken due to insufficient bearing in the installation and use processes. The bulge structure is arranged between the hanging strip and the cable main body part, so that the connection strength of the hanging strip and the cable main body part can be enhanced, the stress concentration condition generated at the joint position of the hanging strip and the cable main body part is avoided, and the stability of the whole structure of the cable is effectively improved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the invention without limitation. In the drawings:

FIG. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view of an embodiment of the present invention with a frame;

FIG. 3 is a schematic view of a frame with a protrusion according to an embodiment of the present invention;

fig. 4 is a schematic view of the inventive embodiment with 3 sets of reinforcement structures.

Detailed Description

It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which are merely for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.

In the description of the invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be construed broadly, e.g. as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.

The invention will be described in detail with reference to the following embodiments with reference to the attached drawings.

A high-strength polyolefin insulation outdoor twisted-pair cable for digital communication is disclosed, as shown in figures 1 to 3, and comprises a cable main body part 1 and at least one reinforcing structure 2 arranged outside the cable main body part, wherein the reinforcing structure is connected with the cable main body part through a hanging strip 3, and a protruding structure is arranged at the joint of the hanging strip and the cable main body part. The connection strength of the hanging strip and the cable main body part can be enhanced through the arranged protruding structures, the stress concentration condition generated at the joint position of the hanging strip and the cable main body part is avoided, and the stability of the whole structure of the cable is effectively improved.

The cable comprises a cable core 4, a cable tearing rope 5 and a cable outer sheath 6 outside the cable core, wherein the cable core comprises a plurality of twisted wire pairs 7. In an alternative embodiment, the twisted wire pairs are separated by a framework, each twisted wire is individually disposed in a separate space of the framework, and the framework supports the structure of the main body portion of the cable to provide protection to the wire pairs in the separate space. By way of example, the cable core includes four sets of twisted wire pairs, each of which is separated from the other by a cross-shaped backbone 12.

In order to form better protection, the tail end of the framework protrudes out of the outer edge of the cable core. In a further improved scheme, one side of each branch 14 of the framework, which is close to the free end, is provided with a protruding part 15, namely, the cross section area of each protruding part is larger than that of the main structure of the framework, the protruding parts between two adjacent branches form an inwards concave space, and the line pair is positioned at the inner side of the inwards concave space, so that the stability is good and the line pair is not easy to fall off.

The cable tearing rope is arranged between the cable core and the cable outer sheath or arranged in the cable outer sheath; the above-mentioned twisted wire pair includes, by way of example, two insulated element wires 10 twisted with each other, the insulated element wires including a copper conductor and an insulating layer 11 coated outside the copper conductor. Usually, the insulating layer is a polyolefin insulating layer.

The reinforcing structure comprises a reinforcing piece 8 and a reinforcing structure outer sheath 9 outside the reinforcing piece; the cable outer sheath of the cable main body part and the reinforcing structure outer sheath of the reinforcing structure are connected into a whole through a sling, generally, when the cable main body part and the reinforcing structure are produced and processed, the 8-shaped mould cable main body part with corresponding specifications is selected and extruded together with the reinforcing structure, and the sling structure is formed between the cable main body part and the reinforcing structure.

The cable outer sheath adopts a chloroethylene sheath or a low-smoke halogen-free polyolefin sheath. The reinforcing structure outer sheath can be made of a vinyl chloride sheath or a low-smoke halogen-free polyolefin sheath, the sling can also be made of a vinyl chloride material or a low-smoke halogen-free polyolefin material which is consistent with the material of the outer sheath, and in an optional embodiment, the reinforcing piece comprises a steel wire.

For example, as shown in fig. 4, 3 sets of reinforcing structures are uniformly distributed on the outer side of the cable main body part along the circumferential direction, the 3 sets of reinforcing structures are arranged in a triangular shape, so that an excellent protection effect is formed on the cable main body part, the torsion resistance and the tensile strength are stronger, the cable main body part is not easy to bend, wind and knot, and the cable main body part is not easy to collide, scratch and damage.

In an alternative embodiment, the stripping assembly is arranged symmetrically on both sides of the sling, and by way of example comprises a stripping member 13 arranged in correspondence with the raised structure, i.e. inside the raised structure.

The stripping piece can adopt a sling tearing rope, the cable part and the reinforcing structure are extruded and molded together and are coated by the peripheral chloroethylene or the low-smoke halogen-free polyolefin. Compared with the existing cable, the reinforced structure is easy to peel off, the peeling assembly and the hanging strip are formed at one time, the main structure of the cable is not damaged, and a stress concentration area is avoided, so that the integral structure stability of the cable is good, and the reinforced structure is not easy to break away accidentally even in heavy use.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the invention, so that any modifications, equivalents, improvements and the like, which are within the spirit and principle of the present invention, should be included in the scope of the present invention.

Claims

1. A high strength polyolefin insulation outdoor twisted pair cable for digital communication is characterized in that: the cable comprises a cable main body part and a reinforcing structure arranged outside the cable main body part;

the cable comprises a cable body, a cable tearing rope and a cable outer sheath outside the cable body, wherein the cable body comprises a plurality of twisted wire pairs; the reinforcing structure comprises a reinforcing piece and a reinforcing structure outer sheath outside the reinforcing piece;

2. The high strength polyolefin insulated outdoor twisted pair cable for digital communications according to claim 1, wherein: the twisted wire pair comprises two insulated single wires which are twisted with each other, and each insulated single wire comprises a copper conductor and an insulating layer coated on the outer side of the copper conductor.

3. The high strength polyolefin insulated outdoor twisted pair cable for digital communications according to claim 2, wherein: the insulating layer is a polyolefin insulating layer.

4. The high strength polyolefin insulated outdoor twisted pair cable for digital communications according to claim 1, wherein: the cable outer sheath adopts a vinyl chloride sheath or a low-smoke halogen-free polyolefin sheath.

5. The high strength polyolefin insulated outdoor twisted pair cable for digital communications according to claim 1, wherein: the reinforced structure outer sheath adopts a vinyl chloride sheath or a low-smoke halogen-free polyolefin sheath.

6. The high strength polyolefin insulated outdoor twisted pair cable for digital communications according to claim 1, wherein: the reinforcement comprises steel wires.

7. The high strength polyolefin insulated outdoor twisted pair cable for digital communications according to any one of claims 1 to 6, wherein: the twisted wire pairs are separated by a backbone.

8. The high strength polyolefin insulated outdoor twisted pair cable for digital communications according to claim 7, wherein: the cable core includes four sets of twisted wire pairs, each of which is separated from the others by a cross-shaped backbone.

9. The high strength polyolefin insulated outdoor twisted pair cable for digital communications according to claim 8, wherein: and 3 groups of reinforcing structures are uniformly distributed on the outer side of the main body part of the cable along the circumferential direction of the main body part of the cable.