CN212570457U

CN212570457U - Copper-core polyvinyl chloride overhead insulated cable

Info

Publication number: CN212570457U
Application number: CN202021448759.3U
Authority: CN
Inventors: 马荣丰
Original assignee: Kunming Red Star Cable Co ltd
Current assignee: Kunming Red Star Cable Co ltd
Priority date: 2020-07-21
Filing date: 2020-07-21
Publication date: 2021-02-19
Anticipated expiration: 2030-07-21

Abstract

The utility model discloses a copper core polyvinyl chloride aerial insulated cable, it includes oversheath, enhancement layer, inner sheath, inner bracket, support, copper core line, insulating layer, shielding layer, protective layer, stopping, be provided with the inner bracket that three cross-section is crescent on the inner wall of inner sheath, the both ends of inner bracket are provided with the strengthening rib, the inside equidistant a plurality of support that is provided with of inner sheath, the cross-section of support is Y shape, be provided with three copper core line on the support, the outside of copper core line is provided with the insulating layer, the outside of insulating layer is provided with the shielding layer, the outside of shielding layer is provided with the protective layer, the stopping sets up in the inner sheath. The utility model discloses oversheath and inner sheath all adopt the setting of strengthening the bracket, strengthen the intensity of whole cable, are convenient for erect, and interior outer bracket symmetry sets up, and crisscross distribution is no matter how the direction of erectting of cable, and the atress can all be shared, erects the convenience.

Description

Copper-core polyvinyl chloride overhead insulated cable

Technical Field

The utility model relates to a cable field especially relates to a copper core polyvinyl chloride aerial insulated cable.

Background

The overhead cable (called overhead insulated cable) is an overhead conductor with insulating layer and protective sheath, and is a special cable made up by adopting the similar production process of cross-linked cable, and is a new power transmission mode between overhead conductor and underground cable. The aerial cable is a single core, and can be divided into a duralumin wire structure, an aluminum alloy wire structure, a steel core or aluminum alloy core supporting structure, a self-supporting three-core threaded structure (the wire core can be duralumin or duralumin wire) and the like according to different structures. The power supply system has the main characteristics of high power supply reliability, good power supply safety, convenience in erection and maintenance, reasonable economy and the like. The main technical parameters comprise weather resistance, insulation level, inner and outer semi-conductive shielding layers. The overhead cable has wide transmission application at home and abroad.

Along with the process of urbanization accelerates, the cable use amount is huge, and current single core aerial [ insulated ] cable has more and more can not satisfy the power consumption demand, needs repeatedly to erect, causes city space cable crisscross, influences pleasing to the eye. Existing overhead cables, such as patent application No.: 201820278415.9, the strength of the cable is increased by installing the bracket and the bracket, but the cable is required to be erected with one side of the bracket facing downward, and the conventional cable is generally in a circular coil shape, and has a spiral condition when being unwound, and cannot be erected completely with one side facing downward, so that the practical application of the cable is difficult.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a copper core polyvinyl chloride aerial insulated cable to prior art not enough.

In order to achieve the above purpose, the present invention is achieved by the following technical solutions.

The utility model provides a copper core polyvinyl chloride aerial insulated cable, it includes oversheath, enhancement layer, inner sheath, inner bracket, support, copper core, insulating layer, shielding layer, protective layer, stopping, be provided with the inner bracket that three cross-section is crescent on the inner wall of inner sheath, the both ends of inner bracket are provided with the strengthening rib, the inside equidistant a plurality of support that is provided with of inner sheath, the cross-section of support is Y shape, be provided with three copper core on the support, the outside of copper core is provided with the insulating layer, the outside of insulating layer is provided with the shielding layer, the outside of shielding layer is provided with the protective layer, the stopping sets up in the inner sheath.

Furthermore, the outside of oversheath is provided with the outer bracket that three cross-sections are crescent, outer bracket and interior bracket crisscross distribution.

Furthermore, the support comprises a support shaft, support plates, oblique support plates and supports, wherein the support shaft is arranged in the middle of the inner portion of the inner sheath, the support plates are annularly arranged on the support shaft, the oblique support plates are arranged on two sides of the support plates, the end portions of the oblique support plates are arranged on the inner bracket, the supports (54) are arranged on the end portions of the support plates, and the supports are attached to the inner sheath and the inner bracket.

Further, the outer sheath is a pipe made of MPP materials.

Further, the reinforcing layer is a metal mesh grid.

Further, the inner sheath is the silicone tube.

Further, the inner bracket is made of polyvinyl chloride, and the reinforcing ribs are steel wires.

Furthermore, the support is made of hard polyvinyl chloride.

Further, the filler is a tensile fiber filler.

The utility model has the advantages that: 1. the outer sheath and the inner sheath are both provided with the reinforcing brackets, so that the strength of the whole cable is enhanced, and the erection is facilitated; 2. the inner bracket and the outer bracket are symmetrically arranged and distributed in a staggered manner, so that the stress can be shared regardless of the erection direction of the cable, and the erection is convenient; 3. a cable has three sinle silks, satisfies multiple use, reduces and erects cable quantity.

Drawings

Fig. 1 is a schematic cross-sectional structure of the present invention;

in the figure: 1. an outer sheath; 2. a reinforcing layer; 3. an inner sheath; 4. an inner bracket; 5. a support; 6. a copper core wire; 7. an insulating layer; 8. a shielding layer; 9. a protective layer; 10. a filler; 11. an outer bracket; 41. reinforcing ribs; 51. a fulcrum; 52. a support plate; 53. an oblique support plate; 54. and (4) supporting.

Detailed Description

The present invention is further illustrated by the following examples, but is not limited to the contents of the specification.

As shown in the figure: a copper core polyvinyl chloride overhead insulated cable comprises an outer sheath 1, a reinforcing layer 2, an inner sheath 3, an inner bracket 4, a support 5, a copper core wire 6, an insulating layer 7, a shielding layer 8, a protective layer 9 and a filler 10.

Be provided with three cross-section for the interior support 4 of crescent on the inner wall of inner sheath 3, the both ends of interior support 4 are provided with strengthening rib 41, the inside equidistant a plurality of support 5 that is provided with of inner sheath 3, generally 10cm sets up one at the interval, the cross-section of support 5 is the Y shape, be provided with three copper core line 6 on the support 5, support 5 includes fulcrum 51, extension board 52, oblique extension board 53, bracket 54, the inside middle part of sheath 3 including fulcrum 51 sets up, the even annular setting of extension board 52 is on fulcrum 51, the both sides of extension board 52 are provided with oblique extension board 53, bracket 4 is including the tip setting of oblique extension board 53, bracket 54 sets up the tip at extension board 52, with inner sheath 3, the laminating of interior support 4.

The outer side of the inner sheath 3 is provided with a reinforcing layer 2, the outer side of the reinforcing layer 2 is provided with an outer sheath 1, the outer side of the outer sheath 1 is provided with three outer brackets 11 with crescent cross sections, the outer brackets 11 and the inner brackets 4 are arranged in a staggered mode, namely the outer brackets 11 are located between two adjacent inner brackets 4.

An insulating layer 7 is arranged on the outer side of the copper core wire 6, a shielding layer 8 is arranged on the outer side of the insulating layer 7, and a protective layer 9 is arranged on the outer side of the shielding layer 8.

The filler 10 is arranged in the inner sheath 3, so that friction among the inner bracket 4, the bracket 5 and the copper core wire 6 can be effectively avoided.

The outer sheath 1 is made of MPP (modified polypropylene) material, and the MPP pipe has excellent electrical insulation, higher heat distortion temperature and low-temperature impact performance, and particularly has higher tensile and compression resistance than HDPE.

The enhancement layer 2 is a metal mesh grid, is arranged between the outer sheath 1 and the inner sheath 3, can effectively enhance the strength of the cable, and can not easily drop broken wires after being conveniently erected.

The inner sheath 3 adopts a silicone tube, and has good insulating property. Meanwhile, the silicone tube has good plasticity and tensile property.

Interior bracket 4 adopts soft polyvinyl chloride material, and strengthening rib 41 is the steel wire, and six strengthening ribs 41 can effectively be hungry the intensity of strengthening the cable, promote cable tensile strength, the rack dress of being convenient for.

Support 5 is stereoplasm polyvinyl chloride material, mainly plays the supporting role, and no matter when the cable rack adorned, the strong point of cable can both share the atress through support 5 at that position. Meanwhile, the three copper core wires 6 are separated by the support 5, so that the damage caused by entanglement friction between the copper core wires 6 in the lake is prevented.

The insulating layer 7, the shielding layer 8 and the protective layer 9 on the outer side of the copper core wire 6 respectively adopt a chromium oxide ceramic coating, a tinned wire braid layer and a silica gel layer, so that the cable can be effectively protected from being damaged and can normally work.

The filler 10 is a tensile fiber filler, which effectively prevents friction between the bracket 5 and the copper core wire 6.

As used in the specification and in the claims, certain terms are used to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, and a person skilled in the art can solve the technical problem within a certain error range to substantially achieve the technical effect. In addition, the description which follows is a preferred embodiment of the invention, but is made for the purpose of illustrating the general principles of the invention and not for the purpose of limiting the scope of the invention. The scope of the present invention is defined by the appended claims.

It is also noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a commodity or system that includes the element.

The foregoing description shows and describes several preferred embodiments of the invention, but as aforementioned, it is to be understood that the invention is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a copper core polyvinyl chloride aerial insulated cable which characterized in that: it comprises an outer sheath (1), a reinforcing layer (2), an inner sheath (3), an inner bracket (4), a bracket (5), a copper core wire (6), an insulating layer (7), a shielding layer (8), a protective layer (9) and a filling material (10), the inner wall of the inner sheath (3) is provided with three inner brackets (4) with crescent cross sections, reinforcing ribs (41) are arranged at two ends of the inner bracket (4), a plurality of brackets (5) are arranged in the inner sheath (3) at equal intervals, the section of the bracket (5) is Y-shaped, three copper core wires (6) are arranged on the bracket (5), an insulating layer (7) is arranged on the outer side of the copper core wire (6), a shielding layer (8) is arranged on the outer side of the insulating layer (7), and a protective layer (9) is arranged on the outer side of the shielding layer (8), and the filling material (10) is arranged in the inner sheath (3).

2. The copper-core polyvinyl chloride overhead insulated cable of claim 1, characterized in that: the outer side of the outer sheath (1) is provided with three outer brackets (11) with crescent cross sections, and the outer brackets (11) and the inner brackets (4) are distributed in a staggered mode.

3. The copper-core polyvinyl chloride overhead insulated cable of claim 1, characterized in that: the support (5) comprises a support shaft (51), a support plate (52), an inclined support plate (53) and a support bracket (54), wherein the support shaft (51) is arranged in the middle of the inner portion of the inner sheath (3), the support plate (52) is annularly arranged on the support shaft (51), the inclined support plate (53) is arranged on two sides of the support plate (52), the end portion of the inclined support plate (53) is arranged on the inner bracket (4), the support bracket (54) is arranged on the end portion of the support plate (52), and the support bracket (54) is attached to the inner sheath (3) and the inner bracket (4).

4. The copper-core polyvinyl chloride overhead insulated cable of claim 1, characterized in that: the outer sheath (1) is a pipe made of MPP materials.

5. The copper-core polyvinyl chloride overhead insulated cable of claim 1, characterized in that: the reinforcing layer (2) is a metal woven mesh.

6. The copper-core polyvinyl chloride overhead insulated cable of claim 1, characterized in that: the inner sheath (3) is a silicone tube.

7. The copper-core polyvinyl chloride overhead insulated cable of claim 1, characterized in that: the inner bracket (4) is made of polyvinyl chloride, and the reinforcing ribs (41) are steel wires.

8. The copper-core polyvinyl chloride overhead insulated cable of claim 1, characterized in that: the bracket (5) is made of hard polyvinyl chloride.

9. The copper-core polyvinyl chloride overhead insulated cable of claim 1, characterized in that: the filling material (10) is tensile fiber filling material.