CN216212397U

CN216212397U - Effectual power cable combats earthquake

Info

Publication number: CN216212397U
Application number: CN202122950041.5U
Authority: CN
Inventors: 苏浩晴; 苏璇; 张金利
Original assignee: Nanjing Sulan Cable Manufacturing Co ltd
Current assignee: Nanjing Sulan Cable Manufacturing Co ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-04-05
Anticipated expiration: 2031-11-29

Abstract

The utility model discloses a power cable with good anti-seismic effect, which comprises a cable core, wherein an insulating layer is arranged on the cable core, a pressure-resistant layer is fixedly connected to the outer side of the insulating layer, a reinforcing layer is arranged on the outer side of the pressure-resistant layer, a buffer cavity is arranged between the pressure-resistant layers of the reinforcing layer, a plurality of buffer rubber pads are arranged in the buffer cavity, the plurality of buffer rubber pads are all fixedly connected with the reinforcing layer and the pressure-resistant layer, an armor layer is fixedly connected to the outer side of the reinforcing layer, and a sheath layer is fixedly connected to the outer side of the armor layer.

Description

Effectual power cable combats earthquake

Technical Field

The utility model relates to the field of related products of cables, in particular to a power cable with a good anti-seismic effect.

Background

The cable is an electric energy or signal transmission device, generally comprises a plurality of or a plurality of groups of conducting wires, and along with the continuous expansion of the scales of industries such as Chinese power industry, communication industry, traffic industry, automobile industry, shipbuilding and the like, the demand of the cable is rapidly increased.

But the whole structure of the existing power cable is simpler, the buffering and anti-seismic performance in actual use is poorer, the cable is easy to damage, the service life is low, and the cable has defectiveness.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a power cable with good anti-seismic effect, which enhances the overall mechanical strength of the cable through the arrangement of a multilayer structure, improves the anti-seismic buffer performance of the cable, and ensures the normal operation of the cable, so as to solve the problems in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an effectual power cable combats earthquake, includes the cable core, be equipped with the insulating layer on the cable core, the outside fixedly connected with compressive layer of insulating layer, the outside on compressive layer is equipped with the enhancement layer, the enhancement layer has and is equipped with the cushion chamber between the compressive layer, be equipped with a plurality of cushion rubber pads in the cushion chamber, it is a plurality of cushion rubber pad all with enhancement layer and compressive layer fixed connection, the outside fixedly connected with armor of enhancement layer, the outside fixedly connected with restrictive coating of armor.

Preferably, the sheath layer is composed of an insulating skin, a supporting rubber and a high-strength synthetic rubber.

Preferably, the insulating layer is made of cross-linked polyethylene.

Preferably, the material of the pressure-resistant layer is polyurethane elastomer.

Preferably, the reinforcing layer is formed by weaving carbon fiber bundles and metal nylon wires.

Preferably, the armor layer is formed by weaving a single layer of tinned copper wires.

Preferably, a plurality of springs are fixedly connected in the buffer cavity, and two ends of the plurality of springs are respectively and fixedly connected with the reinforcing layer and the compression-resistant layer.

Compared with the prior art, the utility model has the beneficial effects that:

the power cable with the good anti-seismic effect is characterized in that the insulating layer is arranged on the outer side of the cable core, cross-linked polyethylene is adopted to prevent current leakage in the cable core, the pressure-resistant layer consisting of the polyurethane elastomer is arranged on the outer side of the insulating layer, so that pressure on the cable core can be effectively buffered, the buffer cavity is formed between the armor layer and the reinforcing layer, a plurality of buffer rubber pads are arranged inside the armor layer, so that the anti-seismic buffering performance is effectively increased and decreased, the possibility of deformation of the cable is effectively reduced due to the fact that the armor layer is woven by a single-layer tinned copper wire, the sheath layer is formed by combining the insulating skin, the supporting rubber and the strength synthetic rubber in a multi-layer mode to increase external pressure, and pressure is prevented from entering the inside of the cable.

Drawings

FIG. 1 is a schematic structural diagram of a power cable with good anti-seismic effect according to the present invention;

fig. 2 is a schematic structural diagram of a sheath layer of a power cable with a good anti-seismic effect.

In the figure: 1. a cable core; 2. an insulating layer; 3. a pressure resistant layer; 4. a reinforcing layer; 5. a buffer chamber; 6. a cushion rubber pad; 7. an armor layer; 8. a sheath layer; 9. a spring; 801. an insulating skin; 802. a supporting rubber; 803. strength synthetic rubber.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-2, an embodiment of the present invention is shown: the utility model provides an effectual power cable combats earthquake, including cable core 1, be equipped with insulating layer 2 on cable core 1, the outside fixedly connected with compressive layer 3 of insulating layer 2, the outside on compressive layer 3 is equipped with enhancement layer 4, the enhancement layer 4 has to be equipped with cushion chamber 5 between the compressive layer 3, be equipped with a plurality of cushion rubber pads 6 in the cushion chamber 5, a plurality of cushion rubber pads 6 all with enhancement layer 4 and compressive layer 3 fixed connection, the outside fixedly connected with armor 7 of enhancement layer 4, the outside fixedly connected with restrictive coating 8 of armor 7.

In this embodiment, the sheath layer 8 is composed of an insulating sheath 801, a supporting rubber 802, and a high-strength synthetic rubber 803; the insulating layer 2 is made of crosslinked polyethylene; the material of the pressure resistant layer 3 is polyurethane elastomer; the reinforcing layer 4 is formed by weaving carbon fiber bundles and metal nylon yarns; the armor layer 7 is formed by weaving a single-layer tinned copper wire; fixedly connected with a plurality of springs 9 in cushion chamber 5, the both ends of a plurality of springs 9 respectively with

enhancement layer

4 and 3 fixed connection on anti-pressure layer, increase and support the cushion effect, avoid cushion chamber 5 to take place deformation.

The working principle is as follows: at first set up insulating layer 2 in the outside of cable core 1, adopt crosslinked polyethylene to prevent that the electric current in the cable core from revealing, the resistance to compression layer 3 that constitutes by the polyurethane elastomer in the outside of insulating layer 2 sets up the pressure that can effectively cushion and lead to the fact the cable core, form cushion chamber 5 between armor 7 and the enhancement layer 4, inside sets up the performance of a plurality of cushion rubber pads 6 effective increase and decrease antidetonation buffering, armor 7 is woven by the individual layer tinned copper wire and is formed the effectual possibility that reduces the cable and take place deformation, restrictive coating 8 adopts insulating skin 801, support rubber 802 and the combination of intensity synthetic rubber 803 multilayer form the buffering that increases external pressure, it is inside to avoid pressure to enter into the cable.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides an effectual power cable combats earthquake, includes cable core (1), its characterized in that: be equipped with insulating layer (2) on cable core (1), outside fixedly connected with crushing layer (3) of insulating layer (2), the outside of crushing layer (3) is equipped with enhancement layer (4), enhancement layer (4) have between crushing layer (3) to be equipped with cushion chamber (5), be equipped with a plurality of cushion rubber pad (6) in cushion chamber (5), it is a plurality of cushion rubber pad (6) all with enhancement layer (4) and crushing layer (3) fixed connection, outside fixedly connected with armor (7) of enhancement layer (4), the outside fixedly connected with restrictive coating (8) of armor (7).

2. The power cable with good anti-seismic effect according to claim 1, characterized in that: the sheath layer (8) is composed of an insulating skin (801), supporting rubber (802) and high-strength synthetic rubber (803).

3. The power cable with good anti-seismic effect according to claim 1, characterized in that: the insulating layer (2) is made of cross-linked polyethylene.

4. The power cable with good anti-seismic effect according to claim 1, characterized in that: the material of the pressure-resistant layer (3) is polyurethane elastomer.

5. The power cable with good anti-seismic effect according to claim 1, characterized in that: the reinforcing layer (4) is formed by weaving carbon fiber bundles and metal nylon yarns.

6. The power cable with good anti-seismic effect according to claim 1, characterized in that: the armor layer (7) is formed by weaving a single-layer tinned copper wire.

7. The power cable with good anti-seismic effect according to claim 1, characterized in that: a plurality of springs (9) are fixedly connected in the buffer cavity (5), and the two ends of each spring (9) are fixedly connected with the reinforcing layer (4) and the pressure-resistant layer (3) respectively.