CN209822342U

CN209822342U - Anti-seismic cable

Info

Publication number: CN209822342U
Application number: CN201920823232.5U
Authority: CN
Inventors: 李休斌
Original assignee: Hubei Special Cable Group Co Ltd
Current assignee: Shanghai Hongxin Wire&cable Co ltd
Priority date: 2019-06-03
Filing date: 2019-06-03
Publication date: 2019-12-20
Anticipated expiration: 2029-06-03

Abstract

The utility model relates to an antidetonation cable, including conductor, insulating layer, stopping, first buffer layer, second buffer layer and sheath. The utility model has the advantages that: the setting of first buffer layer and second buffer layer for the cable has better pliability and deformation energy-absorbing characteristic, and the function of buffering and inhaling is further played in the setting of stopping, the utility model discloses guarantee that the cable absorbs the vibrations energy under abominable vibrations environment by a wide margin, the conductor still can normally work, and the life of cable increases substantially. Just the utility model discloses low in production cost has higher flexibility and resistant advantages such as buckling.

Description

Anti-seismic cable

Technical Field

The utility model relates to the technical field of cables, concretely relates to antidetonation cable.

Background

Along with the continuous progress of society, the attention of people to urban environment is greatly increased. Greening urban environment and improving life quality are development trends of modern society, so that overhead lines influencing beauty and safety are changed into underground pipeline transmission lines by people, the transmission lines are hidden underground, the environment is beautified, the safety is improved, and the stealing difficulty is increased. Underground cables are becoming more and more popular.

However, in the processes of industrial production, installation, civil engineering construction, urban pipe network construction and the like, the high-strength vibration of power equipment can cause unrecoverable damage to cables nearby construction, often cannot be directly seen from the appearance, but can reduce the reliability of the cables to a great extent, reduce the service life of the cables, enable the cables to be in short circuit or open circuit, cause serious casualty accidents of people and equipment, even lead to electric shock accidents due to the fact that the cable cores of the cables are exposed.

Therefore, how to make the cable bear larger vibration without damaging is a problem to be solved in the technical field of cables.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an antidetonation cable to solve the problem that proposes in the above-mentioned background art.

The purpose of the utility model is realized through the following technical scheme: an antidetonation cable, it includes at least one conductor, sets up insulating layer and outermost sheath in the conductor outside, its characterized in that: the sheath is also internally provided with a first buffer layer and a second buffer layer, the first buffer layer is filled with filling materials, the first buffer layer is made of fluorosilicone rubber, a circle of grooves are formed in the outer circumference of the first buffer layer, each protruding part of the outer circumference is provided with a through hole, the second buffer layer is made of fluorosilicone rubber, a circle of grooves are formed in the outer circumference of the second buffer layer, and each protruding part of the outer circumference is provided with a through hole. Furthermore, the groove on the outer circumference of the first buffer layer and the groove on the outer circumference of the second buffer layer are staggered with each other.

Preferably, the conductor is made of copper, and the cross-sectional area range is 5mm²～1600mm²。

Preferably, the insulating layer is made of polyvinyl chloride material, and the insulating property and the heat resistance and the flame retardance of the insulating layer are better.

Preferably, the filler is PVC particles, and by adopting the scheme, when the PVC particles are gathered together, the PVC particles have certain fluidity, so that vibration energy transmitted to the filler part from the outside is weakened, and in addition, the insulation property of the PVC particles is beneficial to improving the insulation property of the cable.

Preferably, the sheath is made of polyvinyl chloride material.

The utility model has the advantages of it is following:

1. the setting of first buffer layer and second buffer layer for its radial deformability is excellent, receives when vibrations when the cable, by the sheath to inside at first transmit the second buffer layer, when the second buffer layer receives external force, the bulge produces deformation to concave part and through-hole internal extrusion, absorbs the shock energy, when external shock energy transmits first buffer layer, the energy is absorbed once more, external energy is through twice absorption like this, by the decay by a wide margin. And when transferred to the fill material area, the fill material absorbs the shock energy again.

2. The conductor is used as a medium for transmitting electric power, other parts of the conductor have a protection function, the insulating layer, the filling material, the first buffer layer, the second buffer layer and the sheath outside the conductor can have the insulation protection function, and even if the sheath is damaged, the second buffer layer, the first buffer layer and the insulating layer can also have the protection function in sequence, so that the service life of the cable is greatly prolonged.

Drawings

FIG. 1 is a schematic view of a seismic cable construction;

in the figure: 1-conductor, 2-insulating layer, 3-filling material, 4-first buffer layer, 5-second buffer layer and 6-sheath.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Furthermore, the technical features mentioned in the embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

As shown in fig. 1, an anti-seismic cable comprises at least one conductor 1, an insulating layer 2 arranged outside the conductor 1, and an outermost sheath 6, and is characterized in that: the sheath 6 is also internally provided with a first buffer layer 4 and a second buffer layer 5, the first buffer layer 4 is filled with filler 3, the first buffer layer 4 is made of fluorosilicone rubber, a circle of groove is formed in the outer circumference of the first buffer layer, a through hole is formed in each protruding part of the outer circumference, the second buffer layer 5 is made of fluorosilicone rubber, a circle of groove is formed in the outer circumference of the second buffer layer, and a through hole is formed in each protruding part of the outer circumference.

Further, the grooves on the outer circumference of the first buffer layer 4 and the grooves on the outer circumference of the second buffer layer 5 are staggered.

Further, the conductor 1 is made of copper, and the cross-sectional area range is 5mm²～1600mm²。

Further, the insulating layer 2 is made of polyvinyl chloride.

Further, the filling material 3 is PVC particles.

Further, the sheath 6 is made of polyvinyl chloride material.

The transmission voltage range of the cable of the embodiment is 1-150 KV, and the cable is suitable for low voltage, medium voltage and high voltage. When the cable is impacted by external force, the filling material 3, the first buffer layer 4 and the second buffer layer 5 outside the conductor 1 act as a shock absorber, so that the impact on the conductor 1 is minimized.

The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.

Claims

1. An anti-seismic cable, comprising at least one conductor (1), an insulating layer (2) arranged outside the conductor (1) and an outermost sheath (6), characterized in that: the sheath (6) is internally provided with a first buffer layer (4) and a second buffer layer (5), the first buffer layer (4) is filled with filler (3), the first buffer layer (4) is made of fluorosilicone rubber, a circle of groove is formed in the outer circumference of the first buffer layer, a through hole is formed in each protruding part of the outer circumference, the second buffer layer (5) is made of fluorosilicone rubber, a circle of groove is formed in the outer circumference of the second buffer layer, and a through hole is formed in each protruding part of the outer circumference.

2. An earthquake-resistant cable according to claim 1, characterized in that: the grooves on the outer circumference of the first buffer layer (4) and the grooves on the outer circumference of the second buffer layer (5) are staggered.

3. An earthquake-resistant cable according to claim 1, characterized in that: the conductor (1) is made of copper, and the cross-sectional area range is 5mm²～1600mm²。

4. An earthquake-resistant cable according to claim 1, characterized in that: the insulating layer (2) is made of polyvinyl chloride material.

5. An earthquake-resistant cable according to claim 1, characterized in that: the filling material (3) is PVC particles.

6. An earthquake-resistant cable according to claim 1, characterized in that: the sheath (6) is made of polyvinyl chloride material.