CN204516413U - A kind of anti-extrusion counter-bending power cable - Google Patents
A kind of anti-extrusion counter-bending power cable Download PDFInfo
- Publication number
- CN204516413U CN204516413U CN201520069583.3U CN201520069583U CN204516413U CN 204516413 U CN204516413 U CN 204516413U CN 201520069583 U CN201520069583 U CN 201520069583U CN 204516413 U CN204516413 U CN 204516413U
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- bolster
- cable
- wires
- power cable
- bending power
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Abstract
The utility model proposes a kind of anti-extrusion counter-bending power cable, comprise cable core, lapping layer, first restrictive coating, cable core comprises four wires, first bolster, four the second bolsters, the cross section of wire is circular, radius is R, the circular in cross-section of the first bolster, circular radius is D, D >=R, the cross section of the second bolster is ellipticity, first bolster is positioned in the middle part of cable core, four wires are parallel longitudinal, and four wires are evenly distributed on the first bolster periphery, and against the side of the first bolster, second bolster is between adjacent two wires, and the second bolster is against adjacent two wires, lapping layer is wrapped outside at cable core, first restrictive coating is coated on lapping layer outside.By above-mentioned optimal design, when cable is squeezed, or cable is when bending, and bolster plays cushioning effect to the stress that wire is subject to, and adds anti-extrusion ability and the bending resistance of cable.
Description
Technical field
The utility model relates to field of cable technology, particularly relates to a kind of anti-extrusion counter-bending power cable.
Background technology
Power cable is the cable for transmitting and distribute electric energy, and power cable is usually used in Urban Underground electrical network, power station lead line, industrial and mining enterprises' in-line power and power transmission line under crossing river seawater.At present, along with the development of society, the demand of power cable rises steadily, and the requirement of people to power cable is also more and more higher.The anti-extrusion ability of existing power cable, warping resistance ability is low, when cable is used in the occasion of the power that is easily squeezed, cable is under pressure and can causes damage to the insulating barrier outside cable core and cable core or restrictive coating, when cable is used in the occasion needing alternating bending, wearing and tearing may be produced to wire, shorten the useful life of cable.
Utility model content
In order to solve the technical problem existed in background technology, the utility model proposes a kind of anti-extrusion counter-bending power cable, stretching-resisting bending-resisting is bent.
The anti-extrusion counter-bending power cable of the one that the utility model proposes, comprises cable core, lapping layer, the first restrictive coating;
Cable core comprises four wires, the first bolster, four the second bolsters, wire comprises the conductor being positioned at middle part, the insulating barrier being coated on conductor outside, is coated on the armour outside insulating barrier and is coated on armour (13) the second restrictive coating outward, the circular in cross-section of wire, radius is R, the circular in cross-section of the first bolster, circular diameter is D, D >=R, the cross section ovalize of the second bolster;
First bolster is positioned in the middle part of cable core, four wires are parallel longitudinal, and four wires are evenly distributed on around the first bolster and against the outer wall of the first bolster, the second bolster is between adjacent two wires, and the second bolster is against adjacent two wires;
Lapping layer is wrapped outside at cable core, and the first restrictive coating is coated on lapping layer outside.
Preferably, the transverse of the second bolster is arranged along the radial direction of cable, and the second bolster outer wall is against the outer wall of the first bolster.
Preferably, the middle part of the first bolster has along axially extended first cavity of cable, and the cross section of the first cavity is circular, the first cavity axis be positioned at the first bolster axis and be located along the same line.
Preferably, have in the middle part of the second bolster along axially extended second cavity of cable, and the sidewall thickness of the second bolster is even.
Preferably, the first bolster and the second bolster all adopt elastic insulated elastomeric material to make.
Preferably, lapping layer adopts that polyester belt is wrapped forms.
Preferably, insulating barrier adopts polythene material to make.
Preferably, armour adopts the form of metal establishment net, and its coverage rate is greater than 75%.
Preferably, the first restrictive coating and the second restrictive coating all adopt flexible neoprene to make.
The beneficial effects of the utility model are: the first bolster is positioned at cable center, four groups of wires are uniformly distributed in the first bolster periphery, and against the first bolster, second bolster is between adjacent two wires, and the second bolster is against adjacent two wires, lapping layer is wrapped outside at cable core, and the first restrictive coating is coated on lapping layer outside.By above-mentioned optimal design, when cable is squeezed, or cable is when bending, and bolster plays cushioning effect to the stress that wire is subject to, and adds anti-extrusion ability and the bending resistance of cable.
Particularly, first bolster is arranged in the middle part of cable core, four wires evenly and be distributed in around the first bolster, second bolster is between adjacent two wires, and the second bolster is against adjacent two wires, first bolster and the second bolster cushion cable bend or stress when being extruded, thus play the effect of guardwire; The transverse of the second bolster to be arranged and against the outer wall of the first bolster and lapping layer along the radial direction of cable, adjacent two wires can be kept apart by the second bolster, when cable is squeezed or bend, be not in contact with each other between each wire, thus avoid the damage because contact stress causes, increase monolithic extruded ability and the circumference degree of cable simultaneously; First bolster and the second bolster inside are equipped with along the axially extended cavity of cable, first bolster and the second bolster uniform wall thickness, the space that cavity can increase the plastic deformation of bolster is set, anti-extrusion and the bending resistance of further raising cable, the uniform wall thickness of bolster, make the buffering effect of bolster to all directions identical, thus it is excessive and cause cable bad to avoid local stress in cable.
Accompanying drawing explanation
Fig. 1 is the schematic cross-section of a kind of anti-extrusion counter-bending power cable that the utility model proposes.
Embodiment
As shown in Figure 1, Fig. 1 is the schematic cross-section of a kind of anti-extrusion counter-bending power cable that the utility model proposes.
With reference to Fig. 1, the utility model proposes a kind of anti-extrusion counter-bending power cable, comprise cable core, lapping layer 4, first restrictive coating 5, lapping layer 4 adopts that polyester belt is wrapped to be formed, and the first restrictive coating 5 adopts flexible neoprene to make.
Cable core comprises four wires 1, first bolster 2, four the second bolsters 3, wire comprises the conductor 11 being positioned at middle part, be coated on the insulating barrier 12 of conductor outside, be coated on the armour 13 outside insulating barrier 12 and be coated on the second restrictive coating 14 outside armour 13, insulating barrier 12 adopts polythene material to make, armour 13 adopts metal to work out the form of net, its coverage rate is greater than 75%, second restrictive coating 14 adopts flexible neoprene to make, the circular in cross-section of wire 1, radius is R, the circular in cross-section of the first bolster 2, circular diameter is D, D >=R, the middle part of the first bolster 2 has along axially extended first cavity 21 of cable, the cross section of the first cavity 21 is circular, first cavity 21 axis be positioned at the first bolster 2 axis and be located along the same line, the cross section ovalize of the second bolster 3, have along axially extended second cavity 31 of cable in the middle part of second bolster 3, and the sidewall thickness of the second bolster 3 is even, first bolster and the second bolster inside are equipped with along the axially extended cavity of cable, the space that cavity can increase the plastic deformation of bolster is set, anti-extrusion and the bending resistance of further raising cable, first bolster 2 and the second bolster 3 all adopt elastic insulated elastomeric material to make.
First bolster 2 is positioned in the middle part of cable core, four wires 1 are parallel longitudinal, and four wires 1 to be evenly distributed on around the first bolster 2 and against the outer wall of the first bolster 2, second bolster 3 is between adjacent two wires 1, and the second bolster 3 is against adjacent two wires 1, the transverse of the second bolster 3 is arranged along the radial direction of cable, second bolster outer wall is against the outer wall of the first bolster 2, second bolster is arranged like this, wire can be separated completely, when cable is squeezed or bend, each wire keeps independent, be not in contact with each other mutually, damage can not be caused because producing contact stress.
Lapping layer 4 is wrapped outside at cable core, and it is outside that the first restrictive coating 5 is coated on lapping layer 4.
The anti-extrusion counter-bending power cable of the one that the utility model proposes, first bolster 2 is arranged in the middle part of cable core, four wires 1 evenly and be distributed in around the first bolster 2, second bolster 3 is between adjacent two wires 1, and the second bolster 3 is against adjacent two wires 1, stress when first bolster 2 and the second bolster 3 cushion cable bend or be extruded, thus play the effect of guardwire 1; The transverse of the second bolster 3 to be arranged and against the outer wall of the first bolster 2 and lapping layer 4 along the radial direction of cable, adjacent two wires 1 can be kept apart by the second bolster 3, when cable is squeezed or bend, be not in contact with each other between each wire, thus avoid the damage because contact stress causes, increase monolithic extruded ability and the circumference degree of cable simultaneously; First bolster 2 and the second bolster 3 inside are equipped with along the axially extended cavity of cable, first bolster 2 and the second bolster 3 uniform wall thickness, the space that cavity can increase the plastic deformation of bolster is set, anti-extrusion and the bending resistance of further raising cable, the uniform wall thickness of bolster, make the buffering effect of bolster to all directions identical, thus it is excessive and cause cable bad to avoid local stress in cable.
The above; be only the utility model preferably embodiment; but protection range of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; be equal to according to the technical solution of the utility model and utility model design thereof and replace or change, all should be encompassed within protection range of the present utility model.
Claims (9)
1. an anti-extrusion counter-bending power cable, is characterized in that, comprises cable core, lapping layer (4), the first restrictive coating (5);
Cable core comprises four wires (1), the first bolster (2), four the second bolsters (3), wire comprises the conductor (11) being positioned at middle part, the insulating barrier (12) being coated on conductor outside, is coated on insulating barrier (12) armour outward (13) and is coated on armour (13) the second restrictive coating (14) outward, the circular in cross-section of wire (1), radius is R, the circular in cross-section of the first bolster (2), circular diameter is D, D >=R, the cross section ovalize of the second bolster (3);
First bolster (2) is positioned in the middle part of cable core, four wires (1) are parallel longitudinal, and four wires (1) are evenly distributed on the first bolster (2) around and against the outer wall of the first bolster (2), second bolster (3) is positioned between adjacent two wires (1), and the second bolster (3) is against adjacent two wires (1);
Lapping layer (4) is wrapped outside at cable core, and it is outside that the first restrictive coating (5) is coated on lapping layer (4).
2. anti-extrusion counter-bending power cable according to claim 1, is characterized in that, the transverse of the second bolster (3) is arranged along the radial direction of cable, and the second bolster outer wall is against the outer wall of the first bolster (2).
3. anti-extrusion counter-bending power cable according to claim 1, it is characterized in that, the middle part of the first bolster (2) has along axially extended first cavity (21) of cable, the cross section of the first cavity (21) is circular, the first cavity (21) axis be positioned at the first bolster (2) axis and be located along the same line.
4. anti-extrusion counter-bending power cable according to claim 1, is characterized in that, the second bolster (3) middle part has along axially extended second cavity (31) of cable, and the sidewall thickness of the second bolster (3) is even.
5. the anti-extrusion counter-bending power cable according to any one of claim 1-4, is characterized in that, the first bolster (2) and the second bolster (3) all adopt elastic insulated elastomeric material to make.
6. anti-extrusion counter-bending power cable according to claim 1, is characterized in that, lapping layer (4) adopts that polyester belt is wrapped forms.
7. anti-extrusion counter-bending power cable according to claim 1, is characterized in that, insulating barrier (12) adopts polythene material to make.
8. anti-extrusion counter-bending power cable according to claim 1, is characterized in that, armour (13) adopts the form of metal establishment net, and its coverage rate is greater than 75%.
9. anti-extrusion counter-bending power cable according to claim 1, is characterized in that, the first restrictive coating (5) and the second restrictive coating (14) all adopt flexible neoprene to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520069583.3U CN204516413U (en) | 2015-01-30 | 2015-01-30 | A kind of anti-extrusion counter-bending power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520069583.3U CN204516413U (en) | 2015-01-30 | 2015-01-30 | A kind of anti-extrusion counter-bending power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204516413U true CN204516413U (en) | 2015-07-29 |
Family
ID=53714361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520069583.3U Expired - Fee Related CN204516413U (en) | 2015-01-30 | 2015-01-30 | A kind of anti-extrusion counter-bending power cable |
Country Status (1)
| Country | Link |
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| CN (1) | CN204516413U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110828034A (en) * | 2019-11-15 | 2020-02-21 | 安徽省飞翔特种电缆有限公司 | Coke pusher is able to bear or endure high temperature travelling cable |
| CN111965772A (en) * | 2020-08-25 | 2020-11-20 | 杭州富通通信技术股份有限公司 | Light optical cable |
| CN112562897A (en) * | 2020-11-18 | 2021-03-26 | 安徽神华特种线缆有限公司 | Low-voltage power signal composite cable |
| CN114783668A (en) * | 2022-05-10 | 2022-07-22 | 浙江卡迪夫电缆有限公司 | Robot cable |
-
2015
- 2015-01-30 CN CN201520069583.3U patent/CN204516413U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110828034A (en) * | 2019-11-15 | 2020-02-21 | 安徽省飞翔特种电缆有限公司 | Coke pusher is able to bear or endure high temperature travelling cable |
| CN111965772A (en) * | 2020-08-25 | 2020-11-20 | 杭州富通通信技术股份有限公司 | Light optical cable |
| CN111965772B (en) * | 2020-08-25 | 2022-08-30 | 杭州富通通信技术股份有限公司 | Light optical cable |
| CN112562897A (en) * | 2020-11-18 | 2021-03-26 | 安徽神华特种线缆有限公司 | Low-voltage power signal composite cable |
| CN114783668A (en) * | 2022-05-10 | 2022-07-22 | 浙江卡迪夫电缆有限公司 | Robot cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150729 Termination date: 20160130 |
|
| EXPY | Termination of patent right or utility model |