CN211742743U

CN211742743U - Cold-resistant anti-freezing cable

Info

Publication number: CN211742743U
Application number: CN202020762348.5U
Authority: CN
Inventors: 刘广义
Original assignee: Xuchang Xinwanda Cable Co ltd
Current assignee: Xuchang Xinwanda Cable Co ltd
Priority date: 2020-05-11
Filing date: 2020-05-11
Publication date: 2020-10-23
Anticipated expiration: 2030-05-11

Abstract

A cold-resistant anti-freezing cable; the power cable comprises a power cable core and a control cable core, wherein the power cable core comprises a plurality of aluminum alloy conductors, a glass fiber yarn weaving layer and a first rubber tube are sequentially coated outside the aluminum alloy conductors, the control cable core comprises a plurality of copper conductors, a semi-conductive shielding layer and a second rubber tube are sequentially coated outside the plurality of copper conductors, the power control cable core and the control cable core are mutually twisted and bundled to form a composite cable core, a third rubber tube is arranged outside the composite cable core, a filler is arranged in the third rubber tube, a fourth rubber tube is arranged outside the third rubber tube, a cutting-proof sleeve is arranged outside the fourth rubber tube, and the cutting-proof sleeve is of a wave-shaped structure; the utility model discloses not only played good guard action to power cable core and control cable core, and can play the cold-resistant effect that keeps warm, avoided the temperature to cross the problem that the inside cable that leads to receives the influence excessively low, when the physical change that the impact that receives external sharp-pointed object or lower temperature lead to, guarantee that its inside cable is difficult for appearing the damage.

Description

Cold-resistant anti-freezing cable

Technical Field

The utility model relates to the technical field of cables, in particular to cold-resistant cable that prevents frostbite.

Background

The cable is one of important components in power transmission, the main characteristic of the cable needs to be designed according to the use occasion of the cable, and then different use requirements are met, so the quality safety and the service life of the cable greatly influence the safety and the quality of people's life, and the commercially available power cable has a plurality of brands, but the basic structure and the material of the cable meet the standard requirements. The main body of the power cable is a built-in conductor, an insulating layer and a sheath layer are added on the conductor, and the power cable with the insulating protection structure is convenient for safe electricity utilization. Power cable erects in the open air under the normal condition, it is very influenced by natural environment, especially the power cable that winter severe cold district erect in the open air, cold resistance is not enough because of external insulating layer and restrictive coating, can lead to its inside copper core to receive the influence, and under the extrusion of external force, make the load exceed self and receive the limit and fracture, influence normal work, when receiving the impact of external sharp object, the naked problem of copper core easily appears, lead to the danger of electric shock even, this influence that brings to cable run is huge, so need frequently maintain or change power cable, increase user's use cost on the one hand, on the other hand reduces power supply quality, especially to the higher cable of voltage level, the biggest problem is to bring the potential safety hazard.

A cold resistant antifreeze cable is needed to solve this problem.

SUMMERY OF THE UTILITY MODEL

To the above situation, in order to overcome the defects of the prior art, the utility model aims to provide a cold-resistant anti-freezing cable, which effectively solves the above problems.

The technical scheme of its solution is, the utility model discloses a power cable core and control cable core, power cable core include many aluminum alloy conductors, outer cladding glass fiber yarn weaving layer and the first rubber tube in proper order of aluminum alloy conductor, the control cable core including many copper conductors, many copper conductors have semiconduction shielding layer and second rubber tube outward in proper order the cladding, power control cable core and the mutual transposition beam forming of control cable core constitute composite cable core, the composite cable core is equipped with the third rubber tube outward, be equipped with the filler in the third rubber tube, the third rubber tube is equipped with the polyethylene film area outward in proper order around the covering, the cotton layer, wire net and fourth rubber tube, the fourth rubber tube is equipped with the anti-cutting cover outward, the anti-cutting cover is the wave structure, still be equipped with composite bed and oversheath outward in proper order outside the anti-cutting cover.

Furthermore, the anti-freezing composite layer is made of polytetrafluoroethylene materials.

Furthermore, the outer sheath is made of an oil-resistant halogen-free flame-retardant low-temperature-resistant XLPE material.

Furthermore, the wave shape on the outer wall of the cutting-proof sleeve is equidistant wave shape.

Furthermore, a plurality of rubber columns are arranged on the wavy outer wall of the cutting-proof sleeve and are attached to the outer walls of the two waves of the cutting-proof sleeve and the inner wall of the anti-freezing composite layer.

Furthermore, the filler is soft silica gel and is filled in gaps among the power cable core, the control cable core and the third rubber tube by adopting an extrusion molding process.

The utility model has the advantages that: the utility model discloses not only played good guard action to power cable core and control cable core, and can play the cold-resistant effect of heat preservation, the problem that the inside cable that has avoided the temperature to hang down to lead to receives the influence has been improved, the whole compressive capacity of cable has been strengthened, the fracture resistance of cable has been strengthened, the performance of anti-shearing, when receiving the impact of external sharp-pointed object or the physical change that lower temperature leads to, guarantee that its inside cable is difficult for appearing the damage, still strengthened the freeze proof ability of cable in severe cold environment, and can transmit the signal again simultaneously at transmission power, can be better satisfy people's user demand, long service life.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings.

Example (b):

as shown in figure 1, the utility model comprises a power cable core and a control cable core, wherein the power cable core comprises a plurality of aluminum alloy conductors 1, a glass fiber yarn weaving layer 2 and a first rubber tube 3 are sequentially coated outside the aluminum alloy conductors 1, the control cable core comprises a plurality of copper conductors 4, a semi-conductive shielding layer 5 and a second rubber tube 6 are sequentially coated outside the plurality of copper conductors 4, the power control cable core and the control cable core are mutually twisted and bundled to form a composite cable core, a third rubber tube 7 is arranged outside the composite cable core, a filler 8 is arranged in the third rubber tube 7, a polyethylene film wrapping layer 9, a cotton layer 10, a steel wire mesh 11 and a fourth rubber tube 12 are sequentially arranged outside the third rubber tube 7, a certain heat preservation and cold resistance can be achieved through the action of the cotton layer 10, the whole tensile strength of the flexible low-temperature cold-resistant and anti-freezing cable can be improved, the steel wire mesh 11 can improve the whole tensile strength of the flexible low-temperature, and the cutting resistance is good, the cutting prevention sleeve 13 is arranged outside the fourth rubber tube 12, the cutting prevention sleeve 13 is of a wave-shaped structure, the anti-freezing composite layer 14 and the outer sheath 15 are sequentially arranged outside the cutting prevention sleeve 13, the outer sheath 15 can improve the overall wear resistance of the flexible low-temperature cold-resistant and anti-freezing cable, and the problem of serious wear of the outer wall of the flexible low-temperature cold-resistant and anti-freezing cable is solved.

The anti-freezing composite layer 14 is made of polytetrafluoroethylene materials, so that the anti-freezing effect and the anti-corrosion effect of the cable are enhanced, the service life of the cable in a severe cold environment is prolonged, and the use cost of workers is reduced.

The outer sheath 15 is made of an oil-resistant halogen-free flame-retardant low-temperature-resistant XLPE material which has good torsion performance and fatigue resistance, improves the high-temperature resistance of the cable and enables the high-temperature resistance to reach 150 ℃.

The wave on the outer wall of the cutting-proof sleeve 13 is equidistant wave, the wave is positive harmonic wave, the height difference between the wave crest and the wave trough is 2.0-4.0 cm, the cable is used in outdoor severe environment, and can directly bear severe cold impact and be extruded or sheared by external force, corresponding physical changes are necessarily generated, the changes can cause great influence on the power cable core and the control cable core, and the maximum influence on the shearing force and the axial tensile force can be the radial shearing force. In order to reduce or avoid internal stress to tear the cable, the wavy anti-cutting sleeve 13 is adopted, so that the characteristics of the structure that the radial strength and the axial elastic deformation can be increased are fully utilized, the cable is prevented from being scratched and torn in a severe cold environment, and the cable is in a safe state.

In order to further enhance the strength and the protection capability of the protective sleeve, a plurality of rubber columns 16 are arranged on the wavy outer wall of the cutting-proof sleeve 13, the rubber columns 16 are attached to the outer walls of two waves of the cutting-proof sleeve 13 and the inner wall of the anti-freezing composite layer 14, when one side of the cable is extruded, the extruded rubber columns 16 disperse the stress to the cutting-proof sleeve 13 and other adjacent rubber columns 16, and the protection capability of the cable is enhanced.

Filler 8 be soft silica gel, adopt the extrusion molding technology to fill in the clearance of power cable core, control cable core and third rubber tube 7, soft silica gel's temperature resistant grade, intensity, pliability, fire-retardant fire resistance can match with device service environment, can satisfy if high temperature resistant, low temperature resistant, fire-retardant, fire-resistant, resistant oily, tensile, soft requirement, reinforcing device to the tolerance of environment.

The foregoing detailed description/examples are specific embodiments of the present invention, and are intended to be illustrative of the principles of the present invention, which are intended to be illustrative and exemplary, and should not be construed as limiting the scope of the present invention. In addition to the embodiments described herein, those skilled in the art will be able to employ other technical solutions which are obvious based on the disclosure of the claims and the specification of the present application, and these technical solutions include those which make any obvious replacement or modification of the embodiments described herein, and all of which are within the scope of the present invention. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present invention is not limited to the particular embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims

1. A cold-resistant anti-freezing cable comprises a power cable core and a control cable core, and is characterized in that the power cable core comprises a plurality of aluminum alloy conductors (1), the aluminum alloy conductors (1) are sequentially coated with a glass fiber yarn woven layer (2) and a first rubber tube (3), the control cable core comprises a plurality of copper conductors (4), the plurality of copper conductors (4) are sequentially coated with a semi-conductive shielding layer (5) and a second rubber tube (6), the power control cable core and the control cable core are mutually twisted into a bundle to form a composite cable core, a third rubber tube (7) is arranged outside the composite cable core, a filler (8) is arranged in the third rubber tube (7), a polyethylene film tape wrapping layer (9), a cotton wire layer (10), a steel wire mesh (11) and a fourth rubber tube (12) are sequentially arranged outside the third rubber tube (7), and a cutting-resistant sleeve (13) is arranged outside the fourth rubber tube (12), the anti-cutting sleeve (13) is of a wave-shaped structure, and an anti-freezing composite layer (14) and an outer sheath (15) are sequentially arranged outside the anti-cutting sleeve (13).

2. The cold-resistant antifreeze cable as claimed in claim 1, wherein said antifreeze composite layer (14) is made of polytetrafluoroethylene.

3. The cold-resistant antifreeze cable as claimed in claim 1, wherein said outer sheath (15) is made of XLPE material with oil-resistant, halogen-free, flame-retardant and low temperature-resistant properties.

4. The cold-resistant anti-freezing cable as claimed in claim 1, wherein the undulations on the outer wall of the cutting-resistant sleeve (13) are equidistant undulations, the undulations are positive harmonic undulations, and the height difference between the wave crest and the wave trough is 2.0-4.0 cm.

5. The cold-resistant anti-freezing cable as claimed in claim 1, wherein a plurality of rubber columns (16) are arranged on the wavy outer wall of the cutting-resistant sleeve (13), and the rubber columns (16) are attached to the two wavy outer walls of the cutting-resistant sleeve (13) and the inner wall of the anti-freezing composite layer (14).

6. The cold-resistant antifreeze cable as claimed in claim 1, wherein the filler (8) is soft silica gel, and is filled in the gaps among the power cable core, the control cable core and the third rubber tube (7) by adopting an extrusion molding process.