CN218159761U

CN218159761U - Anti-cracking flexible underground cable

Info

Publication number: CN218159761U
Application number: CN202221799999.7U
Authority: CN
Inventors: 刘梓鑫
Original assignee: Zhejiang Renmin Cable Manufacturing Co ltd
Current assignee: Zhejiang Renmin Cable Manufacturing Co ltd
Priority date: 2022-07-12
Filing date: 2022-07-12
Publication date: 2022-12-27
Anticipated expiration: 2032-07-12

Abstract

The utility model discloses a flexible underground cable for preventing cracking, which comprises a conductor, insulation, a filler and an inner sheath; the insulation is arranged inside the inner sheath and is provided with a plurality of conductors for transmitting information in an insulation manner; a filler filling a gap between the insulation and the inner sheath; the method comprises the following steps: the shielding layer is arranged on the outer side of the inner sheath, and an iron wire mesh for protecting internal parts is arranged on the outer side of the shielding layer; the needle body, evenly distributed is in the outside of wire netting, and the tip of needle body is provided with the soft copper tape that carries out the protection to sealing rubber to the outside of soft copper tape is provided with the oversheath. This prevent flexible underground cable that ftractures makes inside heat give off through the louvre, increases underground cable's my flexibility through the elastic fiber layer, increases underground cable's life, reduces underground cable cracking's possibility, drives the animal through the setting of expelling parasite powder and needle body.

Description

Anti-cracking flexible underground cable

Technical Field

The utility model relates to an underground cable technical field specifically is a prevent flexible underground cable of fracture.

Background

The utility model provides a buried cable buries in the underground, the electric wire of a transmission information who comprises many or a conductor outsourcing insulating layer and protective layer, for example the open number is CN 212461230U's an aerial insulated cable that can increase-volume, including insulating layer one, first single core cable, second single core cable and third single core cable, an inside is equipped with first single core cable of insulating layer, first single core cable below is equipped with the second single core cable, second conductive core single core cable right side is equipped with the third single core cable, first insulating layer, second insulating layer and third insulating layer all adopt the temperature resistant grade to reach 105 ℃ cross-linked polyethylene insulating material, conductive core one, conductive core two and conductive core three all adopt high-conductivity aluminium material, be equipped with the bracing piece between first conductive core, second conductive core and the third conductive core, the outer circumferential surface of bracing piece is equipped with the support, be equipped with the filler between first conductive core, second conductive core and third conductive core and the support. The utility model has simple structure, high bearing capacity and large transmission capacity, and meets the requirement of high load; but the underground cable still has defects in the using process:

1. because animals like to bite everywhere, when the animals bite the underground cable, parts in the underground cable are exposed outside to reduce safety, information can not be normally transmitted, and damage of the underground cable can not be timely discovered;

2. because underground cable can produce the heat at the in-process of work, the heat can accelerate the speed of the fracture of sheath, because underground is more moist, moisture enters into underground cable's inside through the gap easily, has certain potential safety hazard.

Therefore, the anti-cracking flexible underground cable is provided, and the problems can be well solved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a prevent flexible underground cable of fracture to can not prevent on the existing market that proposes in the solution above-mentioned background art that the animal from gnawing the problem of the phenomenon of appearing the fracture easily with the cable.

In order to achieve the above object, the utility model provides a following technical scheme: a flexible underground cable capable of preventing cracking comprises a conductor, insulation, a filler and an inner sheath;

the insulation is arranged inside the inner sheath and is provided with a plurality of conductors for transmitting information in an insulation manner;

a filler filling a gap between the insulation and the inner sheath;

the method comprises the following steps:

the shielding layer is arranged on the outer side of the inner sheath, and an iron wire net for protecting internal parts is arranged on the outer side of the shielding layer;

the needle bodies are uniformly distributed on the outer side of the wire netting, soft copper belts for protecting sealing rubber are arranged at the end parts of the needle bodies, and outer sheaths are arranged on the outer sides of the soft copper belts;

an elastic fiber layer disposed inside the outer sheath.

Preferably, be provided with hollow sealing rubber between oversheath and the soft copper strip, and sealing rubber's inside is provided with the atmospheric pressure alarm that carries out the control to sealing rubber sealing degree to sealing rubber's inside is provided with expelling parasite powder and gas, drives the animal through expelling parasite powder.

Preferably, the outer side of the outer sheath is provided with wear-resistant columns for prolonging the service life of the underground cable, the inner part of the outer sheath is provided with a fire-resistant layer, an elastic fiber layer, a waterproof layer and a corrosion-resistant layer, heat dissipation holes for dissipating heat are uniformly distributed in the fire-resistant layer, the fire-resistant layer is located on the outermost side, and the flexibility of the underground cable is improved by the arrangement of the elastic fiber layer.

Preferably, the inboard of flame retardant coating is provided with the elastic fiber layer that increases the flexible degree of underground cable, and the inboard of elastic fiber layer is provided with the waterproof layer that prevents water and get into to the inboard of waterproof layer is provided with the corrosion-resistant layer that prevents underground cable corrosion, increases underground cable's life through the setting on waterproof layer and corrosion-resistant layer, prevents simultaneously that water from getting into underground cable's inside.

Preferably, the heat dissipation holes are communicated with each other, and the thickness ratio of the fire-resistant layer to the elastic fiber layer to the waterproof layer to the corrosion-resistant layer is 1:1:1:1, and the elastic fiber layer sets up between flame retardant coating and waterproof layer through the mode of adhesion, link up each other through the louvre and make the water of top can flow to the underground, avoid water accumulation in the inside of louvre.

Preferably, sealing rubber sets up between outer sheath and soft copper tape through the mode of adhesion, the needle body is the circular cone structure, and the interval of adjacent needle body tip is 1mm, reminds the animal no longer to continue to gnaw to inside through setting up of needle body and stings.

Preferably, the outside of wear-resisting post presents the arc setting, and has the louvre between the adjacent wear-resisting post, sealing rubber's inside is hollow structure, and sealing rubber's inside is in the form of relaxing, and the heat that produces the underground cable is gived off in the realization through setting up of louvre.

Compared with the prior art, the beneficial effects of the utility model are that: make inside heat give off through the louvre, increase underground cable's my flexibility through the elastic fiber layer, increase underground cable's life, reduce underground cable cracked possibility, drive the animal through the setting of expelling parasite powder and needle body, avoid the animal to continue to gnaw to underground cable inside and sting, protect the inside part of underground cable, reduce the emergence of incident, specific content is as follows:

1. the animal is driven by the needle body and the insect repelling medicinal powder together, so that the animal is prevented from being gnawed inwards, the condition of sealing rubber in the underground cable is monitored by the arrangement of the air pressure alarm, and a worker can replace the underground cable in time after the underground cable is damaged;

2. the setting through the elastic fiber layer increases the soft degree of underground cable, avoids appearing the phenomenon of fracture at the in-process underground cable that carries out the installation to underground cable, and the realization that sets up through the louvre gives off the heat that underground cable produced, avoids the phenomenon that the outer fracture appears in the high temperature underground cable of underground cable, increases underground cable's life.

Drawings

FIG. 1 is a schematic view of the main sectional structure of the present invention;

FIG. 2 is a schematic view of the main section structure of the outer sheath of the present invention;

FIG. 3 is an enlarged schematic view of a portion of FIG. 1 according to the present invention;

fig. 4 is the structural schematic diagram of the wear-resistant column of the present invention.

In the figure: 1. a conductor; 2. insulating; 3. a filler; 4. an inner sheath; 5. a shielding layer; 6. a wire mesh; 7. a wear-resistant column; 8. heat dissipation holes; 9. an outer sheath; 10. a refractory layer; 11. an elastic fiber layer; 12. a waterproof layer; 13. a corrosion-resistant layer; 14. anthelmintic powder; 15. an air pressure alarm; 16. a needle body; 17. sealing rubber; 18. a soft copper strip.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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 flexible underground cable for preventing cracking comprises a conductor 1, insulation 2, filler 3 and an inner sheath 4; the insulation 2 is arranged in the inner sheath 4, and a plurality of conductors 1 for transmitting information are arranged in the insulation 2; a filler 3 filling a gap between the insulation 2 and the inner sheath 4; the method comprises the following steps: the shielding layer 5 is arranged on the outer side of the inner sheath 4, and an iron wire mesh 6 for protecting internal parts is arranged on the outer side of the shielding layer 5; the needle bodies 16 are uniformly distributed on the outer side of the wire netting 6, soft copper belts 18 for protecting sealing rubber 17 are arranged at the end parts of the needle bodies 16, and outer sheaths 9 are arranged on the outer sides of the soft copper belts 18; a hollow sealing rubber 17 is arranged between the outer sheath 9 and the soft copper belt 18, an air pressure alarm 15 for monitoring the sealing degree of the sealing rubber 17 is arranged inside the sealing rubber 17, and insect-repellent powder 14 and gas are arranged inside the sealing rubber 17; the sealing rubber 17 is arranged between the outer sheath 9 and the soft copper belt 18 in an adhesion mode, the needle body 16 is in a conical structure, and the distance between the end parts of the adjacent needle bodies 16 is 1mm;

the structure solves the problem of animal bite in the technical problem, and as shown in fig. 1 and fig. 3-4, the underground cable is installed underground, when an animal bites the underground cable, the biting time of the animal is increased through the arrangement of the wear-resistant column 7 and the outer sheath 9, when the animal bites the sealing rubber 17, the gas in the sealing rubber 17 is discharged, after the air pressure alarm 15 in the sealing rubber 17 senses that the air pressure speed is reduced, the air pressure alarm 15 gives an alarm sound to remind surrounding people not to approach, the air pressure alarm 15 simultaneously sends a signal to a cable monitoring center through an internal Bluetooth module, a worker knows that a certain position is damaged, the insect repellent powder 14 has peculiar smell to repel the animal, after the pesticide effect of the insect repellent powder 14 is volatilized, part of the animal possibly returns to the original position or a new animal catches up, the animal is poked through the arrangement of the needle body 16, the animal can be far away after the animal is painful, and after a period of time, the worker can maintain the cable;

an elastic fiber layer 11 disposed inside the outer sheath 9; the periphery of the outer side of the outer sheath 9 is provided with wear-resistant columns 7 for prolonging the service life of the underground cable, a fire-resistant layer 10, an elastic fiber layer 11, a waterproof layer 12 and a corrosion-resistant layer 13 are arranged inside the outer sheath 9, radiating holes 8 for radiating heat are uniformly distributed inside the fire-resistant layer 10, and the fire-resistant layer 10 is positioned on the outermost side; an elastic fiber layer 11 for increasing the flexibility of the underground cable is arranged on the inner side of the fire-resistant layer 10, a waterproof layer 12 for preventing water from entering is arranged on the inner side of the elastic fiber layer 11, and a corrosion-resistant layer 13 for preventing the underground cable from being corroded is arranged on the inner side of the waterproof layer 12; the radiating holes 8 are mutually communicated, and the thickness ratio of the fire-resistant layer 10, the elastic fiber layer 11, the waterproof layer 12 and the corrosion-resistant layer 13 is 1:1:1:1, an elastic fiber layer 11 is arranged between a fire-resistant layer 10 and a waterproof layer 12 in an adhesion mode; the outer sides of the wear-resistant columns 7 are arranged in an arc shape, heat dissipation holes 8 are formed between the adjacent wear-resistant columns 7, the interior of the sealing rubber 17 is of a hollow structure, and the interior of the sealing rubber 17 is in a loose state;

the phenomenon of underground cable fracture among the technical problem has been solved to above-mentioned structure, the flexibility of underground cable is increased in setting up through elastic fiber layer 11, avoid underground cable to appear the phenomenon of fracture after continuous bending, corrosion-resistant layer 13's setting prevents that underground cable from appearing rotten phenomenon, waterproof layer 12 can prevent that water from entering into underground cable's inside, reduce the emergence of incident, prevent through flame retardant coating 10 that underground cable from appearing the phenomenon of burning, increase underground cable's life-span, louvre 8 gives off the heat that underground cable produced, reduce underground cable's ageing speed, make the hydroenergy of top enough flow downwards together through the inside intercommunication of louvre 8, avoid water to pile up in the inside of louvre 8, reduce the infiltration possibility appears in the water.

The working principle is as follows: when the anti-cracking flexible underground cable is used, as shown in fig. 1-4, the insect repellent powder 14 and the needle body 16 are arranged to prevent an animal from biting the underground cable continuously, the animal is prevented from biting the underground cable continuously, the heat generated by the underground cable is dissipated through the heat dissipation holes 8, the aging speed of the underground cable is reduced, the flexibility of the underground cable is improved through the elastic fiber layer 11, and the cracking phenomenon of the underground cable is avoided.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. A flexible underground cable capable of preventing cracking comprises a conductor (1), an insulator (2), a filler (3) and an inner sheath (4);

the insulation (2) is arranged inside the inner sheath (4), and a plurality of conductors (1) for transmitting information are arranged in the insulation (2);

a filler (3) filling a gap between the insulation (2) and the inner sheath (4);

it is characterized by comprising:

the shielding layer (5) is arranged on the outer side of the inner sheath (4), and an iron wire net (6) for protecting internal parts is arranged on the outer side of the shielding layer (5);

the needle bodies (16) are uniformly distributed on the outer side of the wire mesh (6), the end parts of the needle bodies (16) are provided with soft copper belts (18) for protecting sealing rubber (17), and the outer sheaths (9) are arranged on the outer sides of the soft copper belts (18);

an elastic fibrous layer (11) arranged inside the outer sheath (9).

2. A flexible underground cable for preventing cracking according to claim 1, wherein: be provided with hollow sealing rubber (17) between oversheath (9) and soft copper tape (18), and the inside of sealing rubber (17) is provided with carries out the atmospheric pressure alarm (15) that control to sealing rubber (17) sealing degree to the inside of sealing rubber (17) is provided with expelling parasite powder (14) and gas.

3. A flexible underground cable for preventing cracking according to claim 1, wherein: the cable is characterized in that wear-resistant columns (7) for prolonging the service life of the underground cable are arranged on the periphery of the outer side of the outer sheath (9), a fire-resistant layer (10), an elastic fiber layer (11), a waterproof layer (12) and a corrosion-resistant layer (13) are arranged inside the outer sheath (9), heat dissipation holes (8) for dissipating heat are uniformly distributed in the fire-resistant layer (10), and the fire-resistant layer (10) is located on the outermost side.

4. A flexible crack resistant underground cable according to claim 3, wherein: the inner side of the fire-resistant layer (10) is provided with an elastic fiber layer (11) for increasing the flexibility of the underground cable, the inner side of the elastic fiber layer (11) is provided with a waterproof layer (12) for preventing water from entering, and the inner side of the waterproof layer (12) is provided with a corrosion-resistant layer (13) for preventing the underground cable from being corroded.

5. A flexible crack resistant underground cable according to claim 3, wherein: the louvre (8) link up each other, the thickness ratio of flame retardant coating (10), elastic fiber layer (11), waterproof layer (12) and corrosion resistant layer (13) is 1:1:1:1, and the elastic fiber layer (11) is arranged between the fire-resistant layer (10) and the waterproof layer (12) in an adhesion mode.

6. A flexible underground cable for preventing cracking according to claim 1, wherein: the sealing rubber (17) is arranged between the outer sheath (9) and the soft copper belt (18) in an adhesion mode, the needle body (16) is of a conical structure, and the distance between the end parts of the adjacent needle bodies (16) is 1mm.

7. A flexible crack resistant underground cable according to claim 3, wherein: the outside of wear-resisting post (7) presents the arc setting, and has louvre (8) between adjacent wear-resisting post (7), the inside of sealing rubber (17) is hollow structure, and the inside of sealing rubber (17) is in the form of relaxing.