CN209691463U - A kind of lv power cable - Google Patents

Abstract

The utility model discloses a kind of lv power cables, including insulating outer layer, the inside of the insulating outer layer is fixedly installed with buffer layer, the inside of the buffer layer is fixedly installed with steel wire, protective layer is fixedly installed on the inside of the buffer layer, the inside of the protective layer is fixedly installed with protective device, the protective device includes support rod, folding arm is fixedly installed between the support rod, one end of the support rod is fixedly installed with support spring, the support spring is fixedly installed with inner insulating layer far from one end of support rod, the inside of the inner insulating layer is fixedly installed with filled layer, the inside of the filled layer is fixedly installed with conducting wire, the material of the buffer layer is polystyrene foam plastics.The utility model avoids pressure excessive the case where causing damage to inner lead, improves the crushing resistance and safety of the lv power cable by setting buffer layer, steel wire and anti-locking apparatus.

Description

A kind of lv power cable

Technical field

The utility model relates to field of cable technology, specially a kind of lv power cable.

Background technique

Power cable is the cable for being used for transmission and distributing electric energy, be in the basic routing line of electric system transmitting and The cable product for distributing high-power power is usually used in the inside confession of Urban Underground power grid, the lead line in power station, industrial and mining enterprises Electricity and crossing river and sea submarine transmission line, medium-low voltage power cable using in the majority.

Existing lv power cable is easy to cause to oppress to cable in work progress, cause inside cable when being laid with Conducting wire it is impaired, influence use the quality of cable, security risk also occurred that when serious, need to be directed to this problem and changed Into.

Utility model content

(1) the technical issues of solving

In view of the deficiencies of the prior art, the utility model provides a kind of lv power cable, solves existing low pressure Conducting wire is caused to be damaged when power cable there is a problem of suffering oppression.

(2) technical solution

To achieve the above object, the utility model provides the following technical solutions: a kind of lv power cable, including insulation is outer Layer, the inside of the insulating outer layer are fixedly installed with buffer layer, and the inside of the buffer layer is fixedly installed with steel wire, the buffering The inside of layer is fixedly installed with protective layer, and the inside of the protective layer is fixedly installed with protective device, and the protective device includes Support rod is fixedly installed with folding arm between the support rod, and one end of the support rod is fixedly installed with support spring, described Support spring is fixedly installed with inner insulating layer far from one end of support rod, and the inside of the inner insulating layer is fixedly installed with filling Layer, the inside of the filled layer is fixedly installed with conducting wire.

Advanced optimize the technical program, the material of the buffer layer is polystyrene foam plastics, and buffer layer and absolutely It is formed between edge outer layer by adhesive bonding.

The technical program is advanced optimized, the quantity of the steel wire is several groups, and circumferentially shape arranges several groups steel wire.

Advanced optimize the technical program, the material of the protective layer is ceramic material, the support rod and protective layer it Between be fixedly connected by shaft.

Advanced optimize the technical program, the support rod and support spring are in the shape of the letter V setting, the protective device in etc. Away from distribution, and the quantity of protective device is six groups.

The technical program is advanced optimized, the quantity of the conducting wire is seven groups, and seven groups of conducting wires are evenly distributed on filled layer Inside, be bonded to each other between the filled layer and conducting wire.

Advanced optimize the technical program, the insulating outer layer and inner insulating layer are fluororesin material, in the insulation The thickness of layer is less than the thickness of insulating outer layer.

(3) beneficial effect

Compared with prior art, the utility model provides a kind of lv power cable, have it is following the utility model has the advantages that

The lv power cable can be pressed by setting buffer layer, steel wire and protective device, buffer layer in the cable When compeling, tentatively pressure is absorbed, steel wire can prevent shearing force from be broken conducting wire, and then pressure passes through buffer layer pair Support rod pressure, support rod push support spring, and support spring absorbs pressure during shrinking, while support rod Foldable arm opens, and folds arm and strengthens the support strength of support rod, avoids that pressure is excessive to be caused to damage to inner lead The case where, improve the crushing resistance and safety of the lv power cable.

Detailed description of the invention

FIG. 1 is a schematic structural view of the utility model；

Fig. 2 is the enlarged structure schematic diagram of A in the utility model Fig. 1.

In figure: 1, insulating outer layer；2, buffer layer；3, steel wire；4, protective layer；5, protective device；51, support rod；52, it folds Arm；53, support spring；6, inner insulating layer；7, filled layer；8, conducting wire.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

The utility model provides a kind of technical solution referring to FIG. 1-2: a kind of lv power cable, including insulating outer layer 1, the inside of insulating outer layer 1 is fixedly installed with buffer layer 2, and the inside of buffer layer 2 is fixedly installed with steel wire 3, the inside of buffer layer 2 It is fixedly installed with protective layer 4, the inside of protective layer 4 is fixedly installed with protective device 5, and protective device 5 includes support rod 51, support It is fixedly installed between bar 51 and folds arm 52, one end of support rod 51 is fixedly installed with support spring 53, and support spring 53 is separate One end of support rod 51 is fixedly installed with inner insulating layer 6, and the inside of inner insulating layer 6 is fixedly installed with filled layer 7, filled layer 7 Inside is fixedly installed with conducting wire 8, and buffer layer 2 tentatively can absorb pressure when the cable is oppressed, 3 energy of steel wire Enough prevent shearing force from be broken conducting wire 8, then pressure presses to support rod 51 by buffer layer 2,51 pairs of support rod supports Spring 53 is pushed, and support spring 53 absorbs pressure during shrinking, while 51 Foldable arm 52 of support rod opens, The support strength that arm 52 strengthens support rod 51 is folded, pressure excessive the case where damage is caused to inner lead 8 is avoided, improves The crushing resistance and safety of the lv power cable.

Specifically, the material of buffer layer 2 is polystyrene foam plastics, and by viscous between buffer layer 2 and insulating outer layer 1 Mixture is bonded, and polystyrene foam plastics has the effect of heat preservation and buffering.

Specifically, the quantity of steel wire 3 is several groups, and circumferentially shape arranges several groups steel wire 3, and steel wire 3 can prevent this There is a situation where be broken for cable.

Specifically, the material of protective layer 4 is ceramic material, it is fixedly connected between support rod 51 and protective layer 4 by shaft, Ceramics have the advantages that hardness height and density are small, have good protective action.

The setting specifically, support rod 51 and support spring 53 are in the shape of the letter V, protective device 5 is in being equally spaced, and protective device 5 quantity is six groups, and support rod 51 and support spring 53 can be absorbed and be decomposed to biggish pressure or impact force.

Specifically, the quantity of conducting wire 8 is seven groups, and seven groups of conducting wires 8 are evenly distributed on the inside of filled layer 7, filled layer 7 with It is bonded to each other between conducting wire 8, filled layer 7 can make conducting wire 8 be stably installed inside.

Specifically, insulating outer layer 1 and inner insulating layer 6 are fluororesin material, the thickness of inner insulating layer 6 is less than insulating outer layer 1 thickness, fluororesin material have the advantages that excellent high and low temperature resistance, dielectric properties, noninflammability and non-stick.

When in use, buffer layer 2 tentatively can absorb pressure when the cable is oppressed, and steel wire 3 can be prevented Only shearing force is broken conducting wire 8, and then pressure presses to support rod 51 by buffer layer 2, and support rod 51 is to support spring 53 are pushed, and support spring 53 absorbs pressure during shrinking, while 51 Foldable arm 52 of support rod opens, and are folded Arm 52 strengthens the support strength of support rod 51, avoids pressure excessive the case where causing damage to inner lead 8, improves this The crushing resistance and safety of lv power cable.

To sum up, it is excessive right to avoid pressure by setting buffer layer 2, steel wire 3 and protective device 5 for the lv power cable Inner lead 8 causes the case where damage, improves the crushing resistance and safety of the lv power cable.

It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row His property includes, so that the process, method, article or equipment for including a series of elements not only includes those elements, and And further include other elements that are not explicitly listed, or further include for this process, method, article or equipment institute it is intrinsic Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including institute State in the process, method, article or equipment of element that there is also other identical elements.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (7)

1. a kind of lv power cable, including insulating outer layer (1), it is characterised in that: the fixed peace in the inside of the insulating outer layer (1) Equipped with buffer layer (2), the inside of the buffer layer (2) is fixedly installed with steel wire (3), the fixed peace in the inside of the buffer layer (2) Equipped with protective layer (4), the inside of the protective layer (4) is fixedly installed with protective device (5), and the protective device (5) includes branch Strut (51) is fixedly installed between the support rod (51) and folds arm (52), and one end of the support rod (51) is fixedly mounted Have support spring (53), the support spring (53) is fixedly installed with inner insulating layer (6) far from the one end of support rod (51), described The inside of inner insulating layer (6) is fixedly installed with filled layer (7), and the inside of the filled layer (7) is fixedly installed with conducting wire (8).

2. a kind of lv power cable according to claim 1, it is characterised in that: the material of the buffer layer (2) is poly- Styrofoam, and formed between buffer layer (2) and insulating outer layer (1) by adhesive bonding.

3. a kind of lv power cable according to claim 1, it is characterised in that: the quantity of the steel wire (3) is several Group, and circumferentially shape arranges several groups steel wire (3).

4. a kind of lv power cable according to claim 1, it is characterised in that: the material of the protective layer (4) is pottery Porcelain material is fixedly connected between the support rod (51) and protective layer (4) by shaft.

5. a kind of lv power cable according to claim 1, it is characterised in that: the support rod (51) and support spring (53) be in the shape of the letter V setting, and the protective device (5) is in be equally spaced, and the quantity of protective device (5) is six groups.

6. a kind of lv power cable according to claim 1, it is characterised in that: the quantity of the conducting wire (8) is seven groups, And seven groups of conducting wires (8) are evenly distributed on the inside of filled layer (7), are bonded to each other between the filled layer (7) and conducting wire (8).

7. a kind of lv power cable according to claim 1, it is characterised in that: in the insulating outer layer (1) and insulation Layer (6) is fluororesin material, and the thickness of the inner insulating layer (6) is less than the thickness of insulating outer layer (1).