CN218602146U

CN218602146U - Anti-fracture low-voltage power cable

Info

Publication number: CN218602146U
Application number: CN202222552830.8U
Authority: CN
Inventors: 吴万明; 胡月香; 王晓春; 邵兰香
Original assignee: Yangzhou Yangzi Cable Manufacturing Co ltd
Current assignee: Yangzhou Yangzi Cable Manufacturing Co ltd
Priority date: 2022-09-26
Filing date: 2022-09-26
Publication date: 2023-03-10
Anticipated expiration: 2032-09-26

Abstract

The utility model discloses a prevent cracked low voltage power cable of power cable technical field, including the outer shielding layer, the inside packing of outer shielding layer is equipped with the stopping, the inside sinle silk that is equipped with of stopping, the sinle silk outer wall is equipped with the insulating layer, and insulating layer outer wall is equipped with the inner shield layer, and the outer shielding layer outer wall is equipped with high temperature resistant layer, and high temperature resistant layer outer wall is equipped with the tensile resistant layer, and the tensile resistant layer outer wall is equipped with the armor, and the armor outer wall is equipped with the oversheath layer, and oversheath layer outer wall is equipped with the wearing layer, the utility model discloses can improve power cable's tensile resistance under the effect of first strengthening rib, beaded finish, second strengthening rib, tensile resistant layer and third strengthening rib, can improve power cable's compressive strength under the effect of armor to stability is strong, thereby power cable can not fracture when receiving external pulling sinle silk, guarantees power cable's life.

Description

Anti-fracture low-voltage power cable

Technical Field

The utility model relates to a power cable technical field specifically is a prevent cracked low voltage power cable.

Background

With the development of economy and science, the demand of electric wires and cables is increasing, the performance requirements are increasing, and low-voltage power cables are widely used in life.

When the low-voltage power cable is used, the low-voltage power cable is more or less pulled by the outside, and the breakage of the wire core is easily caused for a long time, so that the breakage-proof low-voltage power cable is needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a prevent cracked low voltage power cable to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a prevent cracked low pressure power cable, includes outer shielding layer, the inside packing of outer shielding layer is equipped with the stopping, the inside sinle silk that is equipped with of stopping, the sinle silk outer wall is equipped with the insulating layer, insulating layer outer wall is equipped with the internal shield layer, outer shielding layer outer wall is equipped with high temperature resistant layer, high temperature resistant layer outer wall is equipped with the stretch-proofing layer, the stretch-proofing layer outer wall is equipped with the armor, the armor outer wall is equipped with the oversheath layer, oversheath layer outer wall is equipped with the wearing layer.

Furthermore, the inside multiunit third strengthening rib that is equipped with of tensile layer, the third strengthening rib is the setting of V shape, and the multiunit the third strengthening rib is in tensile in situ portion is the annular array and distributes, third strengthening rib one end is connected with high temperature resistant layer outside wall, the other both ends of third strengthening rib are connected with armor in situ side wall.

Further, the inside beaded finish that is equipped with of stopping, the beaded finish is located the internal shield layer outside, the beaded finish inside wall is equipped with the first strengthening rib of multiunit, multiunit first strengthening rib one end is connected with the internal shield layer lateral wall respectively, and the multiunit first strengthening rib is in the beaded finish inside wall is annular array and distributes, the beaded finish lateral wall is equipped with multiunit second strengthening rib, multiunit second strengthening rib one end is connected with the internal lateral wall of external shield layer respectively, and the multiunit the second strengthening rib is respectively the beaded finish lateral wall is annular array and distributes.

Furthermore, the filler is a dust-free rock wool flame-retardant filling rope.

Furthermore, the outer sheath layer is made of halogen-free low-smoke flame-retardant polyolefin material.

Further, the armor layer is a galvanized steel strip.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses can improve power cable's stretch-proofing performance under the effect of first strengthening rib, beaded finish, second strengthening rib, stretch-proofing layer and third strengthening rib, can improve power cable's compressive strength under the effect of armor to stability is strong, thereby power cable sinle silk can not fracture when receiving external dragging, guarantees power cable's life.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1. a wire core; 2. an insulating layer; 3. an inner shield layer; 4. a first reinforcing rib; 5. a reinforcement ring; 6. a second reinforcing rib; 7. a filler; 8. an outer shield layer; 9. a high temperature resistant layer; 10. a stretch resistant layer; 11. a third reinforcing rib; 12. an armor layer; 13. an outer jacket layer; 14. and a wear-resistant layer.

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.

Example 1:

referring to fig. 1, the present invention provides a technical solution: the utility model provides a prevent cracked low pressure power cable, including outer shielding layer 8, the inside packing of outer shielding layer 8 is equipped with stopping 7, stopping 7 is the fire-retardant packing rope of dustless rock wool, improve power cable's flame retardant property, stopping 7 inside is equipped with sinle silk 1, sinle silk 1 outer wall is equipped with insulating layer 2, insulating layer 2 outer wall is equipped with inner shield layer 3, outer shielding layer 8 outer wall is equipped with high temperature resistant layer 9, high temperature resistant layer 9 outer wall is equipped with stretch-proofing layer 10, stretch-proofing layer 10 outer wall is equipped with armor 12, armor 12 is the galvanized steel strip, can improve power cable's compressive strength under the effect of armor 12, and stability is strong, armor 12 outer wall is equipped with oversheath layer 13, oversheath layer 13 is formed by the preparation of halogen-free low smoke flame retardant polyolefin material, halogen-free low smoke flame retardant polyolefin material has low smoke nontoxic characteristics, in case power cable takes place the burning, also can produce a large amount of smog and harmful gas, oversheath layer 13 outer wall is equipped with wearing layer 14, can improve power cable's wear resistance under the effect of wearing layer 12.

Referring to fig. 1, a plurality of groups of third reinforcing ribs 11 are arranged inside a stretch-resistant layer 10, the third reinforcing ribs 11 are arranged in a V shape, the plurality of groups of third reinforcing ribs 11 are distributed inside the stretch-resistant layer 10 in an annular array, one end of each third reinforcing rib 11 is connected with the outer side wall of a high temperature resistant layer 9, the other two ends of each third reinforcing rib 11 are connected with the inner side wall of an armor layer 12, and when a power cable is pulled from the outside, the stretch-resistant performance of the power cable can be improved under the action of the stretch-resistant layer 10 and the third reinforcing ribs 11.

Please refer to fig. 1, a reinforcing ring 5 is disposed inside the filler 7, the reinforcing ring 5 is located outside the inner shielding layer 3, the inner sidewall of the reinforcing ring 5 is provided with a plurality of groups of first reinforcing ribs 4, one end of each group of first reinforcing ribs 4 is connected with the outer sidewall of the inner shielding layer 3, the groups of first reinforcing ribs 4 are distributed in an annular array manner on the inner sidewall of the reinforcing ring 5, the outer sidewall of the reinforcing ring 5 is provided with a plurality of groups of second reinforcing ribs 6, one end of each group of second reinforcing ribs 6 is connected with the inner sidewall of the outer shielding layer 8, the groups of second reinforcing ribs 6 are distributed in an annular array manner on the outer sidewall of the reinforcing ring 5, when the power cable is pulled from the outside, the reinforcing ring 5 and the first reinforcing ribs 6 can improve the tensile property of the power cable, and therefore the core of the power cable cannot be broken when the power cable is pulled from the outside.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various 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

1. An anti-fracture low-voltage power cable comprising an outer shield (8), characterized in that: outer shielding layer (8) inside packing is equipped with stopping (7), stopping (7) inside is equipped with sinle silk (1), sinle silk (1) outer wall is equipped with insulating layer (2), insulating layer (2) outer wall is equipped with internal shield layer (3), outer shielding layer (8) outer wall is equipped with high temperature resistant layer (9), high temperature resistant layer (9) outer wall is equipped with stretch-proofing layer (10), stretch-proofing layer (10) outer wall is equipped with armor (12), armor (12) outer wall is equipped with oversheath layer (13), oversheath layer (13) outer wall is equipped with wearing layer (14).

2. A breakage-proof low-voltage power cable according to claim 1, characterized in that: the anti-stretching layer (10) is inside to be equipped with multiunit third strengthening rib (11), third strengthening rib (11) are the setting of V shape, and the multiunit third strengthening rib (11) are in the anti-stretching layer (10) is inside to be the annular array and distributes, third strengthening rib (11) one end is connected with high temperature resistant layer (9) lateral wall, third strengthening rib (11) other both ends are connected with armor (12) inside wall.

3. A breakage-proof low-voltage power cable according to claim 1, characterized in that: stopping (7) inside is equipped with beaded finish (5), beaded finish (5) are located internal shield layer (3) outside, beaded finish (5) inside wall is equipped with first strengthening rib of multiunit (4), multiunit first strengthening rib (4) one end is connected with internal shield layer (3) lateral wall respectively, multiunit first strengthening rib (4) are in beaded finish (5) inside wall is annular array and distributes, beaded finish (5) lateral wall is equipped with multiunit second strengthening rib (6), multiunit second strengthening rib (6) one end is connected with external shield layer (8) inside wall respectively, multiunit second strengthening rib (6) are respectively beaded finish (5) lateral wall is annular array and distributes.

4. A breakage-proof low-voltage power cable according to claim 1, characterized in that: the filler (7) is a dust-free rock wool flame-retardant filling rope.

5. A breakage-proof low-voltage power cable according to claim 1, characterized in that: the outer sheath layer (13) is made of halogen-free low-smoke flame-retardant polyolefin material.

6. A breakage-proof low-voltage power cable according to claim 1, characterized in that: the armor layer (12) is a galvanized steel strip.