CN210129414U - Waterproof protective sleeve for power cable - Google Patents

Abstract

The utility model discloses a power cable water proof protective sleeve, which comprises an insulating layer, the outside of insulating layer has set gradually filling layer, first waterproof layer, shielding layer, wearing layer, insulating layer and second waterproof layer, the upper and lower both ends fixedly connected with bellmouth of insulating layer, the spacing groove has been seted up in the bellmouth, spacing inslot fixedly connected with sealing washer, it has the sinle silk to peg graft to the insulating layer inboard. This power cable waterproof protective sheath, adopt double-deck waterproof design, the waterproof performance of protective sheath has been improved, be convenient for insert the sinle silk, install the sealing washer in the bellmouth, can adapt to expend with heat and contract with cold, can prevent again that moisture and silt from getting into in the sinle silk, the security of sinle silk has been improved, reduce the transmission of temperature, avoid the high temperature, cause sinle silk to warp and the burning, prolong power cable's life, can resist external heavy pressure to power cable's destruction, and shielding layer and insulating layer, ensure that power cable has sufficient interference killing feature and insulating properties.

Description

Waterproof protective sleeve for power cable

Technical Field

The utility model relates to a power cable equipment technical field specifically is a power cable water proof jacket.

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.

Along with the rapid development of power cable buried laying engineering, the requirement to power cable constantly improves, and the appearance of cable protective sheath, fine solution the big problem of power cable loss, but current power cable protective sheath has that waterproof performance is poor, protective sheath both ends leakproofness is not strong, the shortcoming of easy burning when power cable meets high temperature.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a power cable water proof jacket to propose among the above-mentioned background art that waterproof performance is poor, protective sheath both ends leakproofness is not strong, the problem of easy burning when power cable meets high temperature.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a power cable water proof protective sheath, includes the insulating layer, the outside of insulating layer has set gradually filling layer, first waterproof layer, shielding layer, wearing layer, insulating layer and second waterproof layer, the upper and lower both ends fixedly connected with bellmouth of insulating layer, the spacing groove has been seted up in the bellmouth, spacing inslot fixedly connected with sealing washer, the inboard grafting of insulating layer has the sinle silk.

Preferably, the material of the insulating layer includes, but is not limited to, resin, plastic, silicon rubber, PVC, and the like.

Preferably, the first waterproof layer and the second waterproof layer are of the same specification, and the first waterproof layer and the second waterproof layer are made of ethylene propylene diene monomer.

Preferably, the shielding layer is a net structure formed by weaving red copper or tin-plated copper.

Preferably, the material of the thermal insulation layer includes, but is not limited to, glass fiber, asbestos, rock wool, silicate, aerogel blanket, vacuum plate, and the like.

Preferably, the inner diameter of the socket is larger than that of the wire core, and the outer diameter of the wire core is equal to that of the sealing ring.

Compared with the prior art, the beneficial effects of the utility model are that: this power cable water-proof protective sleeve, adopt double-deck waterproof design, the waterproof performance of protective sheath has been improved, the protective sheath both ends are provided with the bellmouth, be convenient for insert the sinle silk, install the sealing washer in the bellmouth, can adapt to expend with heat and contract with cold, can prevent again that moisture and silt from getting into the sinle silk, the security of sinle silk has been improved, design through the insulating layer, reduce the transmission of temperature, avoid the high temperature, cause sinle silk to warp and the burning, the protective sheath adopts corrosion-resistant, high strength, the material that toughness is good, the life of extension power cable, can resist external heavy pressure to power cable's destruction, and shielding layer and insulating layer, ensure that power cable has sufficient interference killing feature and insulating properties.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic top view of the present invention;

fig. 3 is a schematic view of the cross-sectional structure of the present invention.

In the figure: 1. an insulating layer; 2. a filling layer; 3. a first waterproof layer; 4. a shielding layer; 5. a wear layer; 6. a thermal insulation layer; 7. a second waterproof layer; 8. a socket; 9. a limiting groove; 10. a seal ring; 11. and a wire core.

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. 1-3, the present invention provides a technical solution: a waterproof protective sleeve for a power cable comprises an insulating layer 1, a filling layer 2, a first waterproof layer 3, a shielding layer 4, a wear-resistant layer 5, a heat-insulating layer 6, a second waterproof layer 7, a socket 8, a limiting groove 9, a sealing ring 10 and a wire core 11, wherein the filling layer 2, the first waterproof layer 3, the shielding layer 4, the wear-resistant layer 5, the heat-insulating layer 6 and the second waterproof layer 7 are sequentially arranged on the outer side of the insulating layer 1, the upper end and the lower end of the insulating layer 1 are fixedly connected with the socket 8, the limiting groove 9 is formed in the socket 8, the sealing ring 10 is fixedly connected in the limiting groove 9, and the wire core 11 is inserted;

furthermore, the insulating layer 1 is made of materials including but not limited to resin, plastic, silicon rubber, PVC and the like, so that accidents such as electric leakage, short circuit, electric shock and the like caused by contact of the electric conductor in the wire core 11 with the outside are prevented, and the safety is improved;

furthermore, the first waterproof layer 3 and the second waterproof layer 7 have the same specification, the first waterproof layer 3 and the second waterproof layer 7 are made of ethylene propylene diene monomer, the ethylene propylene diene monomer has the characteristics of low water absorption rate and strong oxidation resistance and corrosion resistance, water cannot permeate, and the waterproof performance of the first waterproof layer 3 and the waterproof performance of the second waterproof layer 7 are ensured;

furthermore, the shielding layer 4 is a net structure formed by weaving red copper or tin-plated copper, so that unnecessary electromagnetic waves are effectively filtered, and the transmission performance of the wire core 11 in an electromagnetic interference environment is ensured;

further, the material of the heat insulation layer 6 includes, but is not limited to, glass fiber, asbestos, rock wool, silicate, aerogel felt, vacuum plate, etc., so as to reduce the influence of external high temperature on the wire core 11 and avoid the occurrence of the condition that the wire core 11 burns due to high temperature;

further, the internal diameter of bellmouth 8 is greater than the internal diameter of sinle silk 11, and the external diameter of sinle silk 11 equals the internal diameter of sealing washer 10, and through setting up bellmouth 8, in being convenient for sinle silk 11 inserts insulating layer 1, the design of sealing washer 10 has further strengthened the leakproofness in insulating layer 1, avoids moisture and silt to get into in insulating layer 1.

The working principle is as follows: at first fix filling layer 2 in proper order in the insulating layer 1 outside, first waterproof layer 3, shielding layer 4, wearing layer 5, insulating layer 6 and second waterproof layer 7, then install bellmouth 8 at the both ends of insulating layer 1, insert sinle silk 11 in insulating layer 1 from bellmouth 8, sealing washer 10 and sinle silk 11 block in the spacing groove 9 are connected, ensure the leakproofness in the insulating layer 1, then lay power cable, when moisture moves to sinle silk 11, second waterproof layer 7 blocks moisture outside, insulating layer 6 ensures that the temperature keeps unchangeable in the sinle silk 11, filling layer 2 and wearing layer 5 reduce the influence of external force heavy pressure to sinle silk 11, shielding layer 4 ensures the normal transmission of sinle silk 11, insulating layer 1 effectively cuts off being connected of internal conductor and outside in the sinle silk 11.

It should be finally noted that the above only serves to illustrate the technical solution of the present invention, and not to limit the scope of the present invention, and that simple modifications or equivalent replacements performed by those skilled in the art to the technical solution of the present invention do not depart from the spirit and scope of the technical solution of the present invention.

Claims (6)

1. The utility model provides a power cable water proof protective sheath, includes insulating layer (1), its characterized in that: the outer side of the insulating layer (1) is sequentially provided with a filling layer (2), a first waterproof layer (3), a shielding layer (4), a wear-resistant layer (5), a heat-insulating layer (6) and a second waterproof layer (7), the upper end and the lower end of the insulating layer (1) are fixedly connected with bellmouths (8), limit grooves (9) are formed in the bellmouths (8), sealing rings (10) are fixedly connected in the limit grooves (9), and wire cores (11) are inserted into the inner side of the insulating layer (1).

2. A waterproof sheath for power cable according to claim 1, characterized in that: the material of the insulating layer (1) includes but is not limited to resin, plastic, silicon rubber and PVC.

3. A waterproof sheath for power cable according to claim 1, characterized in that: the first waterproof layer (3) and the second waterproof layer (7) are of the same specification, and the first waterproof layer (3) and the second waterproof layer (7) are made of ethylene propylene diene monomer.

4. A waterproof sheath for power cable according to claim 1, characterized in that: the shielding layer (4) is a net-shaped structure formed by weaving red copper or tin-plated copper.

5. A waterproof sheath for power cable according to claim 1, characterized in that: the material of the heat insulation layer (6) comprises but is not limited to glass fiber, asbestos, rock wool, silicate, aerogel felt and vacuum plate.

6. A waterproof sheath for power cable according to claim 1, characterized in that: the internal diameter of bellmouth (8) is greater than the internal diameter of sinle silk (11), and the external diameter of sinle silk (11) equals the internal diameter of sealing washer (10).

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