CN109859895B - Low-voltage crosslinked cable convenient to peel off - Google Patents
Low-voltage crosslinked cable convenient to peel off Download PDFInfo
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- CN109859895B CN109859895B CN201910234819.7A CN201910234819A CN109859895B CN 109859895 B CN109859895 B CN 109859895B CN 201910234819 A CN201910234819 A CN 201910234819A CN 109859895 B CN109859895 B CN 109859895B
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Abstract
The invention relates to a low-voltage crosslinked cable convenient to peel off, which comprises a conductor, an insulating layer sleeved outside the conductor and a protective layer sleeved outside the insulating layer, the conductors are four and parallel to each other, the insulating layer comprises a first insulating sleeve respectively sleeved on the four conductors and a second insulating sleeve sleeved outside the four first insulating sleeves, the second insulating sleeve comprises four circular arc-shaped connecting sleeves and connecting plates arranged between the adjacent connecting sleeves, each connecting groove is in an unclosed annular shape, the opening of each connecting groove faces to the center of each connecting sleeve, the four connecting sleeves and the connecting plates form a complete annular shape, an inner cavity is formed inside each connecting sleeve, two sides of each connecting plate are respectively connected with the edges of the two adjacent connecting sleeves, the four first insulating sleeves are respectively inserted into the four connecting sleeves, the protective layer is arranged on the outer side of the second insulating sleeve, and the cross section of the protective layer is rectangular. The invention has the effect of conveniently stripping the low-voltage crosslinked cable.
Description
Technical Field
The invention relates to the technical field of low-voltage crosslinked cables, in particular to a low-voltage crosslinked cable convenient to peel.
Background
A cable is a conductor coated with an insulating layer, a protective layer, a shield layer, and the like for transmitting power, signal current, and signal voltage. The cable can be divided into a high-voltage cable and a low-voltage cable according to voltage. Compared with low-voltage overhead lines and low-voltage overhead insulated lines, low-voltage cable lines are more difficult to lay and maintain, but have the characteristics of reliable operation, no pole standing, no land occupation, no influence on the sight, less influence by the outside and the like, so that the low-voltage cable lines are widely applied to low-voltage power distribution systems.
In the prior art, a referable chinese patent with an authorization publication number of CN206961573U discloses a low-voltage cross-linked halogen-free low-smoke flame-retardant power cable, which sequentially comprises a conductor, an irradiation cross-linked polyethylene insulating layer, an irradiation cross-linked polyolefin insulating layer, a halogen-free low-smoke flame-retardant filling layer, a flame-retardant wrapping tape, a halogen-free low-smoke inner liner layer and an irradiation cross-linked polyolefin outer sheath from inside to outside, wherein an aerogel layer is disposed between the flame-retardant wrapping tape and the halogen-free low-smoke inner liner layer, and a water-blocking tape is wrapped outside the.
The above prior art solutions have the following drawbacks: improve the water-proof effects of cable through setting up the aerogel among the prior art, but this kind of cable is very inconvenient when peeling off, influences dismantling and examining and repairing of cable, needs to use special instrument just can peel off, wastes time and energy, so how conveniently the cable peels off is the problem that a needs to be solved.
Disclosure of Invention
The invention aims to provide a low-voltage crosslinked cable which is convenient to strip.
The above object of the present invention is achieved by the following technical solutions:
a low-voltage crosslinked cable convenient to peel off comprises conductors, insulating layers sleeved on the outer sides of the conductors and protective layers sleeved on the outer sides of the insulating layers, wherein the conductors are four and parallel to each other, each insulating layer comprises a first insulating sleeve respectively sleeved on the four conductors and a second insulating sleeve respectively sleeved on the outer sides of the four first insulating sleeves, each second insulating sleeve comprises four arc-shaped connecting sleeves and a connecting plate arranged between the two adjacent connecting sleeves, each connecting sleeve is in an unclosed annular shape, the opening of each connecting sleeve faces to the central position of each connecting sleeve, the four connecting sleeves and the connecting plates form a complete annular shape, an inner cavity is formed inside each connecting sleeve, two sides of each connecting plate are respectively connected with the edges of the two adjacent connecting sleeves, the four first insulating sleeves are respectively inserted into the four connecting sleeves, the protective layers are arranged on the outer sides of the second insulating sleeves, and, the inner cavity is internally provided with a long-strip-shaped limiting sleeve, the limiting sleeve is parallel to the conductors, the limiting sleeve comprises a rectangular sleeve arranged between four connecting plates and clamping blocks arranged at four corners of the rectangular sleeve, the four clamping blocks are respectively attached to the four conductors, a plurality of anti-skidding blocks are fixedly arranged on the side walls of two sides of each clamping block, the anti-skidding blocks are attached to the inner side wall of the connecting sleeve and have elasticity, the anti-skidding blocks are arranged along the direction of the side walls of two sides of the connecting sleeve, the cross section of each anti-skidding block is semicircular, and the outer side wall of each anti-skidding block is attached to the inner side wall of the.
Through adopting above-mentioned scheme, the cable is when using, four conductors overlap respectively on four conductors and send into in four connecting sleeves, the outside at the insulating cover of second is protected to reuse protective sheath cover, when peeling off the cable, because the protective layer is the rectangle, the cable can directly begin to amputate from the mid point position of every side of protective layer, can cut off on the connecting plate when amputating the position department of the insulating cover of second, cut off the connecting plate, thereby it is more convenient to divide into two halves with the cable wholly, then take out first insulating cover intercommunication conductor in the connecting sleeve again, accomplish the peeling off to the cable, and is simple and convenient, and the conductor can not take place to damage. Carry on spacingly through setting up the stop collar in the inner chamber to conductor and first insulating sleeve, prevent that conductor and first insulating sleeve from taking place to rock when using. The non-slip blocks can increase the frictional force between the clamping blocks and the connecting sleeve, and when the cable moves, the non-slip blocks can firmly grab the inner side wall of the connecting sleeve, so that relative sliding cannot occur between the non-slip blocks and the inner side wall, and therefore the first insulating sleeve is clamped more stably.
The invention is further configured to: the stripping holes are formed in the rectangular sleeve in the length direction of the conductor and communicated with the two ends of the rectangular sleeve.
By adopting the technical scheme, when the cable is stripped to the position of the rectangular sleeve, the rectangular sleeve is conveniently cut off by arranging the stripping hole in the rectangular sleeve.
The invention is further configured to: the connecting sleeves are in a water drop shape, and the width of one side of each connecting sleeve, which is close to the center of each connecting sleeve, is gradually reduced.
Through adopting above-mentioned technical scheme, thereby guarantee through setting up the adapter sleeve that the water droplet shape can paste with the outside wall on adapter sleeve top, and let can not take place to rock.
The invention is further configured to: the anti-skidding block has elasticity and the side surface of one side of the anti-skidding block close to the inner side wall of the connecting sleeve is an arc surface.
Through adopting above-mentioned technical scheme, the lateral wall of non slipping spur is the arc surface and have elastic energy and can guarantee that the non slipping spur can absorb certain vibration, and first insulating bush still can not remove in the adapter sleeve when the cable is in the state of vibration like this, and is more stable.
The invention is further configured to: the top end of the clamping block is provided with an arc-shaped mounting groove, and the diameter of the mounting groove is the same as that of the first insulating sleeve.
Through adopting above-mentioned technical scheme, thereby set up the mounting groove through the top at the tight piece of clamp and can increase the area of contact between first insulation cover and the tight piece of clamp to guarantee that the tight piece of clamp can carry out the stable clamp to first insulation cover and press from both sides.
The invention is further configured to: each connecting plate is provided with a stripping groove.
By adopting the technical scheme, when the connecting plate is cut off, the connecting plate can be cut conveniently along the stripping groove without deflection.
The invention is further configured to: the four connecting sleeves are uniformly distributed along the outer ring surfaces of the four central axes, and the stripping grooves on the two opposite connecting plates are positioned on the same straight line.
Through adopting above-mentioned technical scheme, through being in same straight line with relative two grooves of peeling off, the gross thickness of two connecting plates is littleer on this straight line that two grooves of peeling off link to each other, when cutting off two relative connecting plates from the position department of peeling off the groove, can cut off two connecting plates laborsavingly more.
The invention is further configured to: the insulating layer is still located the second insulating cover in the four first insulating cover outsides including the cover, first insulating cover and second insulating cover are made by the crosslinked polyethylene material, the protective layer is located the first protective sheath in the second insulating cover outside and is located the second protective sheath in the first protective sheath outside with the cover including the cover, and first protective sheath is made by the low smoke and zero halogen material of irradiation polyethylene, the second protective sheath is made by fire-retardant PVC material.
Through adopting above-mentioned technical scheme, make in order to guarantee intensity between them by the crosslinked polyethylene material through with first insulating cover and second insulating cover, if the short circuit burning takes place simultaneously, first insulating cover and second insulating cover do not contain halogen, and more environmental protection, first protective sheath is made in order to guarantee the tensile property of cable by the low smoke and zero halogen material of irradiation polyethylene, can not produce smog when the burning, and the flame retardant property with the assurance is made by fire-retardant PVC material to the second protective sheath.
In conclusion, the beneficial technical effects of the invention are as follows:
1. according to the invention, four groups of first insulating sleeves and conductors are respectively fed into four connecting sleeves, and a connecting plate is connected between every two connecting sleeves, so that the cables can be conveniently and quickly stripped;
2. the limiting sleeves are arranged in the inner cavity so as to limit the four first insulating sleeves, and the first insulating sleeves and conductors on the inner sides of the first insulating sleeves are prevented from shaking;
3. according to the invention, the rectangular sleeve is conveniently cut off by arranging the stripping hole on the rectangular sleeve.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic structural view of a second insulating sleeve and a position-limiting sleeve of the present invention.
In the figure, 1, a conductor; 2. an insulating layer; 21. a first insulating sleeve; 22. a second insulating sleeve; 221. connecting sleeves; 222. a connecting plate; 223. an inner cavity; 224. a stripping groove; 3. a protective layer; 31. a first protective sheath; 32. a second protective cover; 4. a limiting sleeve; 41. a rectangular sleeve; 411. stripping holes; 42. a clamping block; 421. anti-skid blocks; 422. and (4) mounting the groove.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 and 2, the low voltage crosslinked cable easy to peel disclosed in the present invention includes a conductor 1, an insulating layer 2 and a protective layer 3. The conductor 1 is four and parallel arrangement each other, four whole conductors 1 are square, every conductor 1 is the aluminium core, insulating layer 2 includes first insulating cover 21 and second insulating cover 22, first insulating cover 21 and second insulating cover 22 are made by the crosslinked polyethylene material, first insulating cover 21 is total four and overlap respectively and establish on four aluminium cores, second insulating cover 22 includes adapter sleeve 221 and connecting plate 222, adapter sleeve 221 all has four with connecting plate 222, four adapter sleeve 221 overlap respectively and locate on four first insulating cover 21, the central point of four adapter sleeve 221 and conductor 1 puts the axis that is whole cable promptly, four adapter sleeve 221 evenly set up along the outer anchor ring of cable axis.
Each connecting sleeve 221 is in a drop shape, the width of one side of each connecting sleeve 221, which is close to the center of each connecting sleeve 221, is gradually reduced, the four connecting sleeves 221 are in an unclosed annular shape, the opening of each connecting sleeve 221 faces the central axis of the cable, the four connecting plates 222 are respectively arranged between every two adjacent connecting sleeves 221, the four connecting plates 222 are integrally square, two sides of each connecting plate 222 are fixedly connected with the edge of the opening of the adjacent connecting sleeve 221, the four connecting plates 222 and the connecting sleeves 221 are integrally formed into a complete ring and are in a four-leaf shape, and an inner cavity 223 is formed between each four connecting plates 222 and each connecting sleeve 221.
When the cable is in use, four conductors 1 are respectively sleeved on four conductors 1 and sent into four connecting sleeves 221, the outer side of the second insulating sleeve 22 is protected by using a protective sleeve, when the cable is stripped, because the protective layer 3 is rectangular, the cable can be directly cut from the midpoint position of each side edge of the protective layer 3, the cable can be cut on the connecting plate 222 by a cutter when the position of the second insulating sleeve 22 is cut, the connecting plate 222 is cut off, so that the cable is conveniently divided into two halves integrally, then the first insulating sleeve 21 is taken out from the connecting sleeve 221 through the conductor 1, the stripping of the cable is completed, and the cable is simple and convenient to use and the conductor 1 cannot be damaged. The connection sleeve 221 is provided with a water drop shape, so that the first insulation can be attached to the outer side wall of the top end of the connection sleeve 221, and shaking cannot occur.
By making both the first insulating sleeve 21 and the second insulating sleeve 22 of a cross-linked polyethylene material, the strength of both is ensured, and at the same time, if short-circuit combustion occurs, the first insulating sleeve 21 and the second insulating sleeve 22 are halogen-free and more environmentally friendly.
The limiting sleeve 4 is arranged in the inner cavity 223, the limiting sleeve 4 is made of flame-retardant PVC materials, the limiting sleeve 4 is distributed along the length direction of the conductor 1 by the limiting sleeve 4, the limiting sleeve 4 comprises a rectangular sleeve 41 positioned between four connecting plates 222 and clamping blocks 42 arranged in the four connecting sleeves 221, four sides of the rectangular sleeve 41 are respectively clung to inner side walls of the four connecting plates 222, the four clamping blocks 42 are respectively fixedly connected with four corners of the rectangular sleeve 41, the clamping blocks 42 are distributed along the radial direction of the central axis of the cable, a plurality of anti-skid blocks 421 arranged along the length direction of the conductor 1 are fixedly arranged on side walls on two sides of the clamping blocks 42, the anti-skid blocks 421 have elasticity, the anti-skid blocks 421 are arranged along the side wall directions on two sides of the connecting sleeves 221, the cross sections of the anti-skid blocks 421 are semicircular, the outer side walls of the anti-skid blocks 421 are clung to the, the diameter of the mounting groove 422 is the same as that of the first insulating sleeve 21, and the mounting groove 422 is closely attached to the outer side wall of the first insulating sleeve 21.
Conductor 1 and first insulating sleeve 21 are spacing through set up stop collar 4 in inner chamber 223, prevent that conductor 1 and first insulating sleeve 21 from taking place to rock when using. The anti-slip block 421 can increase the friction between the clamping block 42 and the connection sleeve 221, and when the cable moves, the anti-slip block 421 can grasp the inner side wall of the connection sleeve 221 to ensure that the relative sliding between the two does not occur, so that the first insulation sleeve 21 is clamped more stably.
The lateral wall of non-slip block 421 is semi-circular and has elasticity can guarantee that non-slip block 421 can absorb certain vibration, and first insulating bush 21 still can not remove in adapter sleeve 221 when the cable is in the state of vibration like this, and is more stable. The top of the clamping block 42 is provided with the mounting groove 422, so that the contact area between the first insulating sleeve 21 and the clamping block 42 can be increased, and the clamping block 42 can stably clamp the first insulating sleeve 21.
In order to facilitate the glass of the cable, a rectangular stripping hole 411 is formed inside the rectangular sleeve 41, the stripping hole 411 is concentrically arranged with the rectangular sleeve 41, two ends of the stripping hole 411 are communicated with two ends of the rectangular sleeve 41, a strip-shaped stripping groove 224 is formed in the center of the outer side of each connecting plate 222, and the stripping grooves 224 on the two corresponding connecting plates 222 are located on the same straight line. The rectangular sheath 41 is provided with stripping holes 411 arranged along the length direction of the conductor 1, and the stripping holes 411 are communicated with two ends of the rectangular sheath 41.
When stripping the cable to the position of the rectangular sheath 41, the rectangular sheath 41 is cut off relatively easily by providing a stripping hole 411 in the rectangular sheath 41. When the connection plate 222 is cut, the connection plate 222 can be cut relatively easily without being deflected by cutting the connection plate 222 along the peeling grooves 224. By arranging the two opposing peeling grooves 224 in the same straight line, the total thickness of the two connection plates 222 on the straight line connecting the two peeling grooves 224 is smaller, and when the two opposing connection plates 222 are cut from the position of the peeling grooves 224, the two connection plates 222 can be cut with less effort.
Protective layer 3 includes first protective sheath 31 and second protective sheath 32, and first protective sheath 31 is made by the halogen-free material of the polyethylene low smoke of irradiation, and second protective sheath 32 is made by fire-retardant PVC material, and first protective sheath 31 is square and the outside of locating insulating boot, and second protective sheath 32 is square and the outside of locating first protective sheath 31 equally, and the inboard of second protective sheath 32 is hugged closely each other with the outside of first protective sheath 31. First protective sheath 31 is made by the halogen-free material of irradiation polyethylene low smoke in order to guarantee the tensile property of cable, can not produce smog when burning, and the flame retardant properties in order to guarantee is made by fire-retardant PVC material to second protective sheath 32.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (8)
1. The utility model provides a be convenient for peel off type low pressure crosslinked cable, includes conductor (1), the insulating layer (2) and the protective layer (3) of insulating layer (2) outside are located to the cover in the conductor (1) outside, its characterized in that: the four conductors (1) are parallel to each other, the insulating layer (2) comprises first insulating sleeves (21) respectively sleeved on the four conductors (1) and second insulating sleeves (22) sleeved on the outer sides of the four first insulating sleeves (21), each second insulating sleeve (22) comprises four circular arc-shaped connecting sleeves (221) and a connecting plate (222) arranged between every two adjacent connecting sleeves (221), each connecting sleeve (221) is in an unclosed annular shape, the opening of each connecting sleeve faces the center of each connecting sleeve (221), the four connecting sleeves (221) and the connecting plates (222) form a complete annular shape, an inner cavity (223) is formed inside each connecting sleeve, two sides of each connecting plate (222) are respectively connected with the edges of the two adjacent connecting sleeves (221), the four first insulating sleeves (21) are respectively inserted into the four connecting sleeves (221), the protective layer (3) is arranged on the outer side of each second insulating sleeve (22) and the cross section of each protective layer is rectangular, be equipped with rectangular shape stop collar (4) in inner chamber (223), stop collar (4) and conductor (1) are parallel to each other, stop collar (4) are including locating rectangle cover (41) between four connecting plates (222) and locating the tight piece (42) of clamp of rectangle cover (41) four corners position, four press from both sides tight piece (42) and paste with four conductor (1) respectively mutually, all set firmly a plurality of non slipping spur (421) on pressing from both sides lateral wall of tight piece (42), non slipping spur (421) are pasted with the inside wall of adapter sleeve (221), and non slipping spur (421) have elasticity, and a plurality of non slipping spur (421) are arranged along the lateral wall direction of adapter sleeve (221) both sides, and the cross section of non slipping spur (421) is semi-circular and its outside wall is hugged closely with the inside wall of adapter sleeve (221).
2. The easy-to-peel low-voltage crosslinked cable according to claim 1, wherein: stripping holes (411) arranged along the length direction of the conductor (1) are formed in the rectangular sleeve (41), and the stripping holes (411) are communicated with two ends of the rectangular sleeve (41).
3. The easy-to-peel low-voltage crosslinked cable according to claim 1, wherein: the connecting sleeves (221) are in a water drop shape, and the width of one side of each connecting sleeve (221) close to the center of each connecting sleeve is gradually reduced.
4. The easy-to-peel low-voltage crosslinked cable according to claim 3, wherein: the anti-skidding block (421) has elasticity and the side surface of one side of the anti-skidding block close to the inner side wall of the connecting sleeve (221) is an arc surface.
5. The easy-to-peel low-voltage crosslinked cable according to claim 1, wherein: the top end of the clamping block (42) is provided with an arc-shaped mounting groove (422), and the diameter of the mounting groove (422) is the same as that of the first insulating sleeve (21).
6. The easy-to-peel low-voltage crosslinked cable according to claim 1, wherein: each connecting plate (222) is provided with a stripping groove (224).
7. The easy-to-peel low-voltage crosslinked cable according to claim 6, wherein: the four connecting sleeves (221) are uniformly distributed along the outer annular surface of the central axis of the four connecting sleeves, and the stripping grooves (224) on the two opposite connecting plates (222) are positioned on the same straight line.
8. The easy-to-peel low-voltage crosslinked cable according to claim 1, wherein: insulating layer (2) are still located second insulating cover (22) in four first insulating cover (21) outsides including the cover, first insulating cover (21) and second insulating cover (22) are made by the crosslinked polyethylene material, protective layer (3) are located first protective sheath (31) in the second insulating cover (22) outside and are located second protective sheath (32) in first protective sheath (31) outside including the cover, and first protective sheath (31) are made by the low smoke and zero halogen material of irradiation polyethylene, second protective sheath (32) are made by fire-retardant PVC material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910234819.7A CN109859895B (en) | 2019-03-26 | 2019-03-26 | Low-voltage crosslinked cable convenient to peel off |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910234819.7A CN109859895B (en) | 2019-03-26 | 2019-03-26 | Low-voltage crosslinked cable convenient to peel off |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109859895A CN109859895A (en) | 2019-06-07 |
| CN109859895B true CN109859895B (en) | 2020-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910234819.7A Expired - Fee Related CN109859895B (en) | 2019-03-26 | 2019-03-26 | Low-voltage crosslinked cable convenient to peel off |
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| CN (1) | CN109859895B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110580982A (en) * | 2019-10-12 | 2019-12-17 | 宜兴市玉蝶印务有限公司 | Cable with heat dissipation structure |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2105560T3 (en) * | 1993-09-06 | 1997-10-16 | Filotex Sa | EASILY REMOVABLE CABLE. |
| CN203850009U (en) * | 2014-03-14 | 2014-09-24 | 安徽万泰电缆有限公司 | A high temperature resistant extrusion resistant computer shield cable |
| CN205722958U (en) * | 2016-06-29 | 2016-11-23 | 三峡大学 | A kind of compound power cable |
| CN206758143U (en) * | 2017-06-05 | 2017-12-15 | 安徽龙芯电力电线有限公司 | A kind of aluminum alloy conductor power cable |
| CN108281232A (en) * | 2018-03-01 | 2018-07-13 | 浙江英美达电缆科技有限公司 | High-performance creep resistant aluminium alloy power cable |
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Granted publication date: 20201016 |