CN211929142U - Anti-breaking power cable - Google Patents

Abstract

The utility model discloses a prevent power cable that breaks relates to power cable technical field, for solving the problem that current power cable easily takes place to break. The outside of cable is provided with outside protective layer, the inboard of outside protective layer is provided with the shielding layer, the inboard of shielding layer is provided with the sponge layer, the sponge layer comprises recess, arch and cavity, the inside on sponge layer is provided with connecting portion, the inboard on sponge layer is provided with fire-retardant layer, the inboard on fire-retardant layer is provided with the carbon fiber net layer, the inside of cable is provided with six two liang of adjacent tangent and evenly distributed in the first sheath on six summits that are regular hexagon, the inside of first sheath is provided with first line core, the inside intermediate position department of cable is provided with the second sheath, the inside of second sheath is provided with the second line core, the outside of cable is provided with the mounting groove, the inside of mounting groove is provided with the spring coil.

Description

Anti-breaking power cable

Technical Field

The utility model relates to a power cable technical field specifically is a prevent power cable that breaks.

Background

The power cable is used for transmitting and distributing electric energy, 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, and has a gradually increasing proportion in the power line. Power cables are cable products used in the trunk lines of power systems to transmit and distribute high power electrical energy, including various voltage classes, 1-500KV and above, and various insulated power cables.

However, the existing power cable is easy to bend in the transportation and installation processes, and due to the fact that the integral structure is compact, the inner wire core is easy to break in the bending process, the integral using effect is affected, the existing requirements are not met, and the anti-breaking power cable is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a prevent power cable that breaks to solve the problem that the power cable who provides easily takes place to break among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a breakage-proof power cable comprises a cable, wherein an external protective layer is arranged outside the cable, a shielding layer is arranged on the inner side of the external protective layer, a sponge layer is arranged on the inner side of the shielding layer and consists of grooves, bulges and cavities, the grooves and the bulges are positioned on two sides of the inner wall of the sponge layer, the cavities are positioned between the sponge layers, a plurality of connecting parts are arranged inside the sponge layer, a flame-retardant layer is arranged on the inner side of the sponge layer, a carbon fiber net layer is arranged on the inner side of the flame-retardant layer, six first sheaths which are adjacent in pairs and are tangent and uniformly distributed on six vertexes of a regular hexagon are arranged inside the cable, a first line core is arranged inside the first sheaths, a plurality of first line cores are arranged inside the first sheaths, and a second sheath is arranged in the middle position inside the cable, the inside of second sheath is provided with the second line core, and the second line core is provided with a plurality of, the outside of cable is provided with the mounting groove, the inside of mounting groove is provided with the spring coil.

Preferably, the outer protective layer is attached to the shielding layer, the flame-retardant layer is attached to the outer side of the carbon fiber net layer, and the inner side of the carbon fiber net layer is wrapped on the surface of the first sheath.

Preferably, the groove and the protrusion are of an integral structure, the groove and the protrusion are of a wave structure, and the sponge layers are fixedly connected through the connecting parts.

Preferably, the mounting groove and the external protection layer are of an integral structure, the depth of the mounting groove is two millimeters, and the spring ring is connected with the external protection layer through a mounting groove clamping groove.

Preferably, the remaining space inside the cable is filled with a hot-melt material.

Preferably, the first sheath and the second sheath are braided by spiral twisting, and the second sheath is annularly distributed by taking the circle center of the first sheath as the center.

Preferably, the remaining space inside the first sheath and the second sheath is filled with a hot-melt material.

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

1. the utility model discloses a set up the outer lane of cable into composite construction, constitute the outer lane by outside protective layer, its main material is polymer polyethylene material, impact-resistant has, it is stand wear and tear, the engineering plastics that self-lubricating property is good and low temperature performance is excellent, can be outside protection cable on the at utmost, the shielding layer main material of inboard setting is the iron-aluminum alloy, a light in weight, the anti-magnetic interference performance is outstanding, the fire-retardant layer that sets up more inboard can improve the security of cable, carbon fiber net layer then can firmly wrap up a plurality of sheaths that are equipped with the sinle silk inside, the pliability is strong, avoid not hard up, through adopting compound outer lane, power cable's intensity and functionality have been improved.

2. The utility model discloses an outside at the cable is provided with the mounting groove, the mounting groove is the heliciform and distributes, through the internally mounted at the mounting groove there is the spring coil, receive when buckling at the cable, the power of buckling at first transmits to the spring coil, the spring coil atress is crooked, make it take place elastic deformation, the in-process of deformation can carry out offsetting to a certain extent with the power of buckling to avoid strong bending force to break the cable in the twinkling of an eye, the setting up of spring coil makes the ability of preventing breaking further improve.

3. The utility model discloses a be provided with the sponge layer between shielding layer and fire-retardant layer, the wave structure that sponge in situ wall is formed by recess and arch, the centre on sponge layer is provided with the cavity, because the sponge is soft material, when taking place to buckle, the sponge can be alleviated the power of buckling, simultaneously through the buffering of cavity, in order to transmit the power of inside sinle silk and reduce gradually, the anti-rupture effect has further been improved, in addition because the cable exposes in the open air for a long time, receive the inside expend with heat and contract with cold of having sent of temperature environment influence, another effect of cavity can provide the space of inside inflation, give the power of expansion, thereby avoid causing the extrusion to the outer lane, adaptability obtains improving.

Drawings

Fig. 1 is an overall sectional view of the present invention;

FIG. 2 is an overall side view of the present invention;

FIG. 3 is a schematic view of the internal structure of the sponge layer of the present invention;

fig. 4 is a perspective view of the inside of the cable of the present invention.

In the figure: 1. a cable; 2. an outer protective layer; 3. a shielding layer; 4. a sponge layer; 5. a flame retardant layer; 6. a carbon fiber mesh layer; 7. a first sheath; 8. a first wire core; 9. a hot-melt material; 10. a second sheath; 11. a second wire core; 12. a spring ring; 13. mounting grooves; 14. a groove; 15. a protrusion; 16. a cavity; 17. a connecting portion.

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.

Referring to fig. 1-4, the present invention provides an embodiment: a breakage-proof power cable comprises a cable 1, an external protective layer 2 is arranged outside the cable 1, a shielding layer 3 is arranged on the inner side of the external protective layer 2, a sponge layer 4 is arranged on the inner side of the shielding layer 3, the sponge layer 4 is composed of a groove 14, a protrusion 15 and a cavity 16, the groove 14 and the protrusion 15 are both positioned on two sides of the inner wall of the sponge layer 4, the cavity 16 is positioned between the sponge layers 4, a connecting part 17 is arranged inside the sponge layer 4, the connecting part 17 is provided with a plurality of parts, a flame-retardant layer 5 is arranged on the inner side of the sponge layer 4, a carbon fiber net layer 6 is arranged on the inner side of the flame-retardant layer 5, six first sheaths 7 which are adjacent in pairs and are tangent and uniformly distributed on six vertexes of a regular hexagon are arranged inside the cable 1, a first line core 8 is arranged inside the first sheaths 7, the first line core 8 is provided with, the inside of second sheath 10 is provided with second line core 11, and second line core 11 is provided with a plurality of, and the outside of cable 1 is provided with mounting groove 13, and the inside of mounting groove 13 is provided with spring coil 12.

Further, the laminating of outside protective layer 2 and shielding layer 3 mutually, the laminating of flame retardant coating 5 and carbon fiber net layer 6's the outside mutually, and carbon fiber net layer 6's inboard parcel is on the surface of first sheath 7, outside protective layer 2 constitutes the outer lane, its main material is polymer polyethylene material, have shock-resistant, stand wear and tear, the engineering plastics that self-lubricating performance is good and the low temperature performance is excellent, can be outside protection cable 1 on the at utmost, the 3 main materials of shielding layer of inboard setting are iron-aluminum alloy, its light in weight, anti-magnetic interference performance is outstanding, flame retardant coating 5 that sets up more inboard can improve cable 1's security.

Further, recess 14 and protruding 15 structure as an organic whole, and recess 14 and protruding 15 are wave structure, through connecting portion 17 fixed connection between the sponge layer 4, the sponge can be alleviated the power of buckling, simultaneously through the buffering of cavity 16 to the power that transmits inside sinle silk reduces gradually, has further improved the anti-fracture effect.

Further, mounting groove 13 and outside protective layer 2 structure as an organic whole, and the degree of depth of mounting groove 13 is two millimeters, and spring coil 12 passes through the mounting groove 13 draw-in groove with outside protective layer 2 and is connected, and spring coil 12 atress is crooked, makes it take place elastic deformation, and the in-process of deformation can carry out offsetting to a certain extent with the bending force to avoid strong bending force to break cable 1 in the twinkling of an eye.

Further, the residual space in the cable 1 is filled with the hot-melt material 9, and the hot-melt material 9 is heated, so that the solid state is converted into the liquid state and is converted into the solid state, and other internal structures can be tightly attached to form a whole.

Further, the first sheath 7 and the second sheath 10 are braided by spiral twisting, and the second sheath 10 is annularly distributed by taking the circle center of the first sheath 7 as the center, so that the spiral twisting braiding is beneficial to improving the tightness between the sheaths, and the integral strength is improved.

Further, the residual space inside the first sheath 7 and the second sheath 10 is filled with the hot-melt material 9, and the hot-melt material 9 is heated, so that the solid state is converted into the liquid state and the liquid state is converted into the solid state, and other structures inside the first sheath and the second sheath can be tightly attached into a whole.

The working principle is as follows: the outer ring of the cable 1 is set to be a composite structure, the outer ring is formed by an external protective layer 2, the main material of the outer ring is a high-molecular polyethylene material and has engineering plastics with impact resistance, wear resistance, good self-lubricating performance and excellent low-temperature performance, the cable 1 can be protected to the greatest extent from the outside, the main material of a shielding layer 3 arranged on the inner side is an iron-aluminum alloy, the outer ring is light in weight and excellent in magnetic interference resistance, the safety of the cable 1 can be improved compared with that of a flame-retardant layer 5 arranged on the inner side, a plurality of sheaths provided with wire cores inside can be firmly wrapped by a carbon fiber net layer 6, the flexibility is strong, the looseness is avoided, a sponge layer 4 is arranged between the shielding layer 3 and the flame-retardant layer 5, the inner wall of the sponge layer 4 is of a wave-shaped structure formed by grooves 14 and bulges 15, a cavity 16 is arranged in the middle of, simultaneously through the buffering of cavity 16 to the power that transmits inside sinle silk reduces gradually, the effect of preventing breaking has further been improved, in addition because cable 1 exposes for a long time in the open air, receive the inside expansion and contraction that has generated of gas temperature environment influence, another effect of cavity 16 can provide the space of inside inflation, give the power of expansion, thereby avoid causing the extrusion to the outer lane, adaptability obtains improving, in addition when cable 1 receives buckling, the power of buckling at first transmits to spring coil 12, spring coil 12 atress is crooked, make it take place elastic deformation, the in-process of deformation can carry out certain offset with buckling force, thereby avoid strong buckling force to break cable 1 in the twinkling of an eye.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention 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 (7)

1. An anti-break power cable, comprising a cable (1), characterized in that: the cable is characterized in that an external protective layer (2) is arranged outside the cable (1), a shielding layer (3) is arranged on the inner side of the external protective layer (2), a sponge layer (4) is arranged on the inner side of the shielding layer (3), the sponge layer (4) is composed of a groove (14), a protrusion (15) and a cavity (16), the groove (14) and the protrusion (15) are both positioned on two sides of the inner wall of the sponge layer (4), the cavity (16) is positioned between the sponge layers (4), a connecting part (17) is arranged inside the sponge layer (4), the connecting part (17) is provided with a plurality of parts, a flame-retardant layer (5) is arranged on the inner side of the sponge layer (4), a carbon fiber net layer (6) is arranged on the inner side of the flame-retardant layer (5), six first sheaths (7) which are adjacent in pairs and are tangent and uniformly distributed on six vertexes of a regular hexagon are, the utility model discloses a cable, including first sheath (7), first sinle silk (8) are provided with in the inside of first sheath (7), and first sinle silk (8) are provided with a plurality of, cable (1) inside intermediate position department is provided with second sheath (10), the inside of second sheath (10) is provided with second sinle silk (11), and second sinle silk (11) are provided with a plurality of, the outside of cable (1) is provided with mounting groove (13), the inside of mounting groove (13) is provided with spring ring (12).

2. A break-resistant power cable according to claim 1, characterized in that: the outer protective layer (2) is attached to the shielding layer (3), the flame-retardant layer (5) is attached to the outer side of the carbon fiber net layer (6), and the inner side of the carbon fiber net layer (6) is wrapped on the surface of the first sheath (7).

3. A break-resistant power cable according to claim 1, characterized in that: the groove (14) and the protrusion (15) are of an integral structure, the groove (14) and the protrusion (15) are of a wave structure, and the sponge layers (4) are fixedly connected through the connecting portions (17).

4. A break-resistant power cable according to claim 1, characterized in that: mounting groove (13) and outside protective layer (2) structure as an organic whole, and the degree of depth of mounting groove (13) is two millimeters, spring ring (12) are connected through mounting groove (13) draw-in groove with outside protective layer (2).

5. A break-resistant power cable according to claim 1, characterized in that: the remaining space inside the cable (1) is filled with a hot-melt material (9).

6. A break-resistant power cable according to claim 1, characterized in that: the first sheath (7) and the second sheath (10) are woven through spiral twisting, and the second sheath (10) is annularly distributed by taking the circle center of the first sheath (7) as the center.

7. A break-resistant power cable according to claim 1, characterized in that: the residual space inside the first sheath (7) and the second sheath (10) is filled with hot-melt material (9).

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