CN211699762U - Copper core crosslinked polyethylene insulation sheath power cable - Google Patents

Abstract

The utility model discloses a copper core crosslinked polyethylene insulation sheath power cable, including the cable core, the surface coating of cable core has the insulating paint layer, the surface parcel of insulating paint layer has the drier, the surface parcel of drier has mica tape layer, the surface parcel on mica tape layer has the polyethylene layer, the surface parcel on polyethylene layer has the copper core, the surface parcel of copper core has the water blocking layer, the surface parcel on water blocking layer has inside bearing layer, the outer fixed surface of inside bearing layer is connected with a plurality of and is the bearing spring of circumference array, the outside layer of weighing of one end fixedly connected with of the inside bearing layer of keeping away from of bearing spring, the surface of outside layer of weighing is provided with the safety cover. This copper core crosslinked polyethylene insulation sheath power cable through utilizing to add insulating paint layer, drier, mica tape layer, polyethylene layer and water blocking layer, has solved and has leaded to its insulating nature to reduce easily under the high temperature environment, and waterproof nature is also relatively poor problem.

Description

Copper core crosslinked polyethylene insulation sheath power cable

Technical Field

The utility model relates to a power cable technical field specifically is a copper core crosslinked polyethylene insulation sheath power cable.

Background

The power cable is used for transmitting and distributing electric energy, and is commonly used for urban underground power grids, power station leading-out lines, power supply inside industrial and mining enterprises and power transmission lines under river-crossing seawater.

The polyethylene cable generally comprises a conductive core, an insulating layer, a filling layer and the like, has good electrical properties and is widely applied, however, the crosslinked polyethylene cable in the prior art has a low working temperature, generally below 70 ℃, and easily causes the insulation reduction under a high-temperature environment, thus affecting the use safety, and meanwhile, the polyethylene cable has poor water resistance.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a copper core crosslinked polyethylene insulation sheath power cable has solved and has leaded to its insulating nature to reduce easily under the high temperature environment, and waterproof nature is also relatively poor problem.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a copper core crosslinked polyethylene insulation sheath power cable, includes the cable core, the surface coating of cable core has insulating paint layer, insulating paint layer's surface coating has the drier, the surface coating of drier has mica tape layer, the surface coating on mica tape layer has the polyethylene layer, the surface coating on polyethylene layer has the copper core, the surface coating of copper core has the water blocking layer, the surface coating of water blocking layer has inside bearing layer, the outer fixed surface of inside bearing layer is the bearing spring of circumference array a plurality of, the one end fixedly connected with outside weighing layer of keeping away from inside bearing layer of bearing spring, the surface of outside weighing layer is provided with the safety cover, it has the sand that absorbs water to fill between the inside of safety cover and the outside weighing layer.

As the further description of the technical scheme, the safety cover comprises the first connecting cover and the second connecting cover, and the three limiting columns which are in a circumferential array are fixedly connected to one end, close to the second connecting cover, of the first connecting cover, so that the cable can be protected more conveniently, and the injury caused by the insects and the ants of the snakes, rats and insects can be prevented.

As a further description of the above technical scheme, every the recess has all been seted up in the inside of spacing post, every the recess is close to the inner wall fixedly connected with second reset spring of one end each other, every the one end fixedly connected with connecting plate that second reset spring kept away from each other, every the one end fixedly connected with gag lever post that second reset spring was kept away from to the connecting plate can be more convenient carry out the joint with first connecting cover and second connecting cover and fix.

As the further description of above-mentioned technical scheme, every the spacing hole with gag lever post looks adaptation is all seted up to the side that the second connecting cover was kept away from each other, every the first reset spring of the equal fixedly connected with in side that the second connecting cover was kept away from each other, every the equal fixedly connected with in one end that spacing hole was kept away from to first reset spring presses the clamp plate, and the first connecting cover after the joint and the second connecting cover that can be more convenient are dismantled.

As the further description of the technical scheme, each end, far away from each other, of each groove is fixedly connected with a limiting ring, the limiting rings are matched with the grooves, and therefore the limiting rods and the connecting plates can be effectively prevented from falling off from the inner portions of the grooves.

As the further description of the technical scheme, the top of the protective cover is fixedly connected with the hoisting ring, so that the protective cover can be hoisted more conveniently and is convenient to move.

(III) advantageous effects

The utility model provides a copper core crosslinked polyethylene insulation sheath power cable possesses following beneficial effect:

the copper core crosslinked polyethylene insulating sheath power cable can effectively insulate the cable core by arranging the insulating paint layer, can effectively prevent moisture from contacting the cable core by arranging the drying agent, the cable core is damaged, the mica tape layer can effectively prevent fire of the cable core, the polyethylene layer can effectively prevent the cable core from being damaged by low temperature, the copper core can effectively increase the stretchability of the cable, the water-proof layer can effectively prevent water from entering the interior of the water-proof layer, and the internal bearing layer can effectively prevent the water-proof layer from being subjected to external force, the cable is internally damaged, the internal bearing layer can be effectively prevented from being extruded and deformed when being subjected to external force by being provided with the bearing spring, and the external force can be effectively borne by being provided with the external weighing layer.

This copper core crosslinked polyethylene insulation support power cable, can be more convenient protect the cable through being provided with the safety cover, prevent that the snake mouse worm ant from causing the injury, through being provided with spacing post, a groove, second reset spring, connecting plate and gag lever post can be more convenient carry out the joint with first connecting cover and second connecting cover fixed, through being provided with spacing hole, first reset spring can be more convenient dismantle first connecting cover and the second connecting cover after the joint with the pressing plate, can effectually prevent that gag lever post and connecting plate from droing from the inside of recess through being provided with the spacing ring, can be more convenient hoist the safety cover through being provided with the hoist and mount ring, convenient the removal.

Drawings

FIG. 1 is a transverse cross-sectional view of the present invention;

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

FIG. 3 is an enlarged view of the structure A in FIG. 2 according to the present invention;

fig. 4 is a schematic view of the structure of the limit post of the present invention.

In the figure: the cable comprises a cable core 1, an insulating paint layer 2, a drying agent 3, a mica tape layer 4, a polyethylene layer 5, a copper core 6, a water blocking layer 7, an internal bearing layer 8, a bearing spring 9, an external weighing layer 10, water absorbing sand 11, a protective cover 12, a first connecting cover 121, a second connecting cover 122, a hoisting ring 13, a limiting column 14, a limiting hole 15, a first reset spring 16, a pressing plate 17, a second reset spring 19, a connecting plate 20, a limiting rod 21, a limiting ring 22 and a groove 23.

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. 1-4, the present invention provides a technical solution: a copper core crosslinked polyethylene insulation sheath power cable comprises a cable core 1, an insulation paint layer 2 is coated on the outer surface of the cable core 1, a drying agent 3 is coated on the outer surface of the insulation paint layer 2, a mica tape layer 4 is coated on the outer surface of the drying agent 3, a polyethylene layer 5 is coated on the outer surface of the mica tape layer 4, a copper core 6 is coated on the outer surface of the polyethylene layer 5, a water-resistant layer 7 is coated on the outer surface of the copper core 6, an inner bearing layer 8 is coated on the outer surface of the water-resistant layer 7, a plurality of bearing springs 9 in a circumferential array are fixedly connected to the outer surface of the inner bearing layer 8, an outer weighing layer 10 is fixedly connected to one end, far away from the inner bearing layer 8, of each bearing spring 9, a protective cover 12 is arranged on the outer surface of the outer weighing layer 10, each protective cover 12 is composed of a first connecting cover 121 and a second connecting cover 122, three limiting columns 14 in a circumferential array, can protect the cable more conveniently and prevent the injury caused by the insects and the ants of the snakes, rats and insects.

Each limiting post 14 is internally provided with a groove 23, the inner wall of one end of each groove 23 close to each other is fixedly connected with a second reset spring 19, the end of each second reset spring 19 far away from each other is fixedly connected with a connecting plate 20, one end of each connecting plate 20 far away from the second reset spring 19 is fixedly connected with a limiting rod 21, the first connecting cover 121 and the second connecting cover 122 can be clamped and fixed more conveniently, one side surface of each second connecting cover 122 far away from each other is provided with a limiting hole 15 matched with the limiting rod 21, one side surface of each second connecting cover 122 far away from each other is fixedly connected with a first reset spring 16, one end of each first reset spring 16 far away from the limiting hole 15 is fixedly connected with a pressing plate 17, the clamped first connecting cover 121 and the clamped second connecting cover 122 can be dismounted more conveniently, one end of each groove 23 far away from each other is fixedly connected with a limiting ring 22, and spacing ring 22 and recess 23 looks adaptation can effectually prevent that gag lever post 21 and connecting plate 20 from droing from the inside of recess 23, and the top fixedly connected with hoisting ring 13 of safety cover 12 can be more convenient hoist and mount safety cover 12, and the convenient removal is filled between the inside of safety cover 12 and outside weighing layer 10 outside and is had the sand 11 that absorbs water.

The working principle is as follows: the cable core 1 can be effectively insulated by arranging the insulating paint layer 2, the moisture can be effectively prevented from contacting the cable core 1 by arranging the drying agent 3, the cable core 1 is damaged, the mica tape layer 4 can effectively prevent fire of the cable core 1, the polyethylene layer 5 can effectively prevent the low temperature from damaging the cable core 1, the copper core 6 can effectively increase the stretchability of the cable, the water-proof layer 7 can effectively prevent water from entering the water-proof layer 7, and the inner bearing layer 8 can effectively prevent the water-proof layer from being influenced by external force, the cable is damaged, the inner bearing layer 8 can be effectively prevented from being extruded and deformed when being subjected to external force by being provided with the bearing spring 9, and the force applied to the outside can be effectively borne by being provided with the outer weighing layer 10.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a copper core crosslinked polyethylene insulation sheath power cable, includes cable core (1), its characterized in that: the outer surface coating of cable core (1) has insulating paint layer (2), the surface parcel of insulating paint layer (2) has drier (3), the surface parcel of drier (3) has mica tape layer (4), the surface parcel of mica tape layer (4) has polyethylene layer (5), the surface parcel of polyethylene layer (5) has copper core (6), the surface parcel of copper core (6) has water blocking layer (7), the surface parcel of water blocking layer (7) has inside bearing layer (8), the surface fixed connection of inside bearing layer (8) has a plurality of bearing spring (9) that are the circumference array, the one end fixed connection that keeps away from inside bearing layer (8) of bearing spring (9) has outside weighing layer (10), the surface of outside weighing layer (10) is provided with safety cover (12), and water-absorbing sand (11) is filled between the inside of the protective cover (12) and the outside of the external weighing layer (10).

2. The copper core crosslinked polyethylene insulation sheath power cable according to claim 1, characterized in that: the protective cover (12) is composed of a first connecting cover (121) and a second connecting cover (122), and three limiting columns (14) in a circumferential array are fixedly connected to one end, close to the second connecting cover (122), of the first connecting cover (121).

3. The copper core crosslinked polyethylene insulation sheath power cable according to claim 2, characterized in that: every recess (23) all is seted up in the inside of spacing post (14), every recess (23) are close to the inner wall fixedly connected with second reset spring (19) of one end each other, every one end fixedly connected with connecting plate (20) that second reset spring (19) kept away from each other, every one end fixedly connected with gag lever post (21) of second reset spring (19) are kept away from to connecting plate (20).

4. The copper core crosslinked polyethylene insulation sheath power cable according to claim 2, characterized in that: every spacing hole (15) with gag lever post (21) looks adaptation are all seted up to the side that second connecting cover (122) kept away from each other, every the equal fixedly connected with first reset spring (16) of the side that second connecting cover (122) kept away from each other, every the equal fixedly connected with of one end that spacing hole (15) were kept away from in first reset spring (16) presses clamp plate (17).

5. A copper core crosslinked polyethylene insulated sheath power cable according to claim 3, characterized in that: every equal fixedly connected with spacing ring (22) of one end that recess (23) kept away from each other, and spacing ring (22) and recess (23) looks adaptation.

6. The copper core crosslinked polyethylene insulation sheath power cable according to claim 1, characterized in that: the top of the protective cover (12) is fixedly connected with a hoisting ring (13).

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