CN212161363U - Bending-resistant fireproof cable - Google Patents
Bending-resistant fireproof cable Download PDFInfo
- Publication number
- CN212161363U CN212161363U CN202021145943.0U CN202021145943U CN212161363U CN 212161363 U CN212161363 U CN 212161363U CN 202021145943 U CN202021145943 U CN 202021145943U CN 212161363 U CN212161363 U CN 212161363U
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- CN
- China
- Prior art keywords
- cable
- resistant
- coating
- piece
- arc
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000005452 bending Methods 0.000 title abstract description 18
- 239000011248 coating agent Substances 0.000 claims abstract description 25
- 238000000576 coating method Methods 0.000 claims abstract description 25
- 238000005096 rolling process Methods 0.000 claims abstract description 16
- 239000000835 fiber Substances 0.000 claims abstract description 7
- 238000005253 cladding Methods 0.000 claims abstract description 6
- 210000003205 muscle Anatomy 0.000 claims description 14
- 239000004020 conductor Substances 0.000 claims description 10
- 239000003063 flame retardant Substances 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 6
- 229920003020 cross-linked polyethylene Polymers 0.000 claims description 6
- 239000004703 cross-linked polyethylene Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 230000009970 fire resistant effect Effects 0.000 claims 7
- 230000002349 favourable effect Effects 0.000 abstract description 7
- 230000002035 prolonged effect Effects 0.000 abstract description 7
- 238000012856 packing Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 28
- 239000011247 coating layer Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 3
- RJDOZRNNYVAULJ-UHFFFAOYSA-L [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[F-].[F-].[Mg++].[Mg++].[Mg++].[Al+3].[Si+4].[Si+4].[Si+4].[K+] Chemical compound [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[F-].[F-].[Mg++].[Mg++].[Mg++].[Al+3].[Si+4].[Si+4].[Si+4].[K+] RJDOZRNNYVAULJ-UHFFFAOYSA-L 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 230000006353 environmental stress Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
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Abstract
The utility model relates to a bending-resistant fireproof cable, including the cable core, the cable core is four, four the outside cladding of cable core has the coating, be provided with anti rubber tape of rolling over in the coating, anti rubber tape of rolling over runs through the both ends of coating, anti rubber tape of rolling over is four and follows a week evenly distributed of coating, anti rubber tape of rolling over include with the arc piece that the coating inner wall is contradicted, the side of arc piece both sides is extended to cable centre of circle point has the backing sheet, two the backing sheet is kept away from a side interconnect of arc piece, the cable core is located two between the backing sheet, arc piece and both sides it has the packing fibre to fill between the backing sheet. The utility model discloses the excessive of cable can be resisted in anti rubber tape of rolling over, is favorable to improving the resistant ability of bending of cable, has prolonged the life of cable.
Description
Technical Field
The utility model belongs to the technical field of the cable technique and specifically relates to a resistant fireproof cable that bends is related to.
Background
With the rapid development of social economy in China, the requirements of people on power cables are higher and higher, the cables are generally rope-like cables formed by stranding a plurality of or a plurality of groups of conductor cores, each group of conductor cores are insulated from each other and are often twisted around a center, and the whole outer surface is wrapped by a highly-insulated covering layer. The device is erected in the air or installed underground or underwater for telecommunication or power transmission.
The prior art discloses a Chinese patent with a publication number of CN201438387U, which discloses a shallow sea oil well exploration cable, which comprises a communication cable, a data cable, a power cable, a reinforced cable core and a reinforced filling core, wherein a gap between each cable and the cable core is filled with water blocking glue, and the peripheries of the cables and the filling core are wrapped with a lining layer and an outer sheath; the power cable consists of two crosslinked polyethylene insulated wire cores; the communication cable consists of two pairs of non-polar medium insulated wire cores with shields, and the shields are braided by copper wires; the data cable consists of two groups of 5-type data lines, wherein each group comprises four pairs, and the number of the four pairs is 8; the reinforced cable core is formed by stranding a plurality of strands of spun silk; the outer layer of the outer sheath is of a sawtooth structure.
The above prior art solutions have the following drawbacks: the cable core in the cable is only protected under the outer sheath, and in the cable laying process, the cable is often bent, the cable core in the cable can be extruded after being bent for a long time, and the service life of the cable can be shortened.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims at providing a resistant fireproof cable that bends, the excessive of cable is bent can be resisted to anti rubber tape that bends, is favorable to improving the resistant ability of bending of cable, has prolonged the life of cable.
The above object of the present invention can be achieved by the following technical solutions:
the utility model provides a resistant fireproof cable that bends, includes the cable core, the cable core is four, four the outside cladding of cable core has the coating, be provided with anti rubber tape that bends in the coating, anti rubber tape that bends runs through the both ends of coating, anti rubber tape is four and follows a week evenly distributed of coating, anti rubber tape that bends include with the arc piece that the coating inner wall is contradicted, the side of arc piece both sides is extended to the cable centre of a circle point has the backing sheet, two the backing sheet is kept away from a side interconnect of arc piece, the cable core is located two between the backing sheet, arc piece and both sides it has the packing fibre to fill between the backing sheet.
Through adopting above-mentioned technical scheme, when bending the cable, because be formed with the triangle-shaped form between the backing sheet of arc piece and both sides, and also be formed with the triangle-shaped form between the backing sheet of both sides, triangle-shaped has better steadiness, and then can resist outside power to can improve the bending resistance ability of cable, reduce to cause the damage to the cable core, prolonged the life of cable.
The present invention may be further configured in a preferred embodiment as: the arc-shaped sheet is characterized in that ribs are connected between two sides of the inner wall of the arc-shaped sheet and the inner walls of the supporting sheets on two sides, and the length of each rib is consistent with that of the arc-shaped sheet.
Through adopting above-mentioned technical scheme, when external force pushes down the arc piece, the muscle piece can hinder pushing down of arc piece, and then can reduce the deformation of anti rubber tape of rolling over, is favorable to reducing because of excessively bending to anti rubber tape of rolling over and causes the damage.
The present invention may be further configured in a preferred embodiment as: the angle between the rib piece and the supporting piece is smaller than 90 degrees.
Through adopting above-mentioned technical scheme, set up the angle between muscle piece and the backing sheet to be less than 90, can make the angle between muscle piece and the arc piece tend to the right angle, and then can strengthen the holding power of muscle piece to the arc piece, further reduce the deformation volume of arc piece.
The present invention may be further configured in a preferred embodiment as: the cable core is located among the transverse sheets, the ribs and the supporting sheets.
Through adopting above-mentioned technical scheme, utilize the horizontal piece to connect the muscle piece of both sides, when one of them muscle piece produced deformation, the horizontal piece can hinder it to take place deformation, is favorable to reducing the deformation volume, has improved the anti-tensile ability of dragging of muscle piece.
The present invention may be further configured in a preferred embodiment as: gaps are reserved between the transverse sheets and the rib sheets and the cable core respectively.
Through adopting above-mentioned technical scheme, leave the clearance with crosspiece and muscle piece respectively between with the cable core, can have sufficient space to make crosspiece and muscle piece produce deformation, reduce the side to the cable core and cause wearing and tearing.
The present invention may be further configured in a preferred embodiment as: the coating include with the conductor shielding layer that arc piece lateral wall was contradicted, by the conductor shielding layer outwards has fire-retardant layer and restrictive coating in proper order the cladding.
By adopting the technical scheme, the conductor shielding layer can reduce partial discharge generated between the cable core and the sheath and can shield an electric field; the flame-retardant layer can effectively prevent external open fire from damaging the inside, and is favorable for protecting the cable core.
The present invention may be further configured in a preferred embodiment as: and a steel wire mesh layer is arranged between the flame-retardant layer and the sheath layer.
Through adopting above-mentioned technical scheme, the steel wire layer has improved the resistance to wear of restrictive coating, has further prolonged the life of cable.
The present invention may be further configured in a preferred embodiment as: the sheath layer is made of a cross-linked polyethylene material.
By adopting the technical scheme, the cross-linked polyethylene material has the environmental stress crack resistance and the chemical corrosion resistance, and is favorable for improving the protection capability of the cable.
To sum up, the utility model discloses a following at least one useful technological effect:
by arranging the anti-bending rubber belt, when the cable is bent, the arc-shaped sheet and the supporting sheets on the two sides are in a triangular shape, and the supporting sheets on the two sides are also in a triangular shape, so that the triangular shape has better stability and can resist external force, the anti-bending capability of the cable can be improved, the damage to a cable core is reduced, and the service life of the cable is prolonged;
by arranging the rib pieces, when the arc-shaped pieces are pressed down by external force, the rib pieces can block the arc-shaped pieces from being pressed down, so that the deformation of the anti-bending rubber belt can be reduced, and the damage to the anti-bending rubber belt caused by excessive bending can be reduced;
through setting up the horizontal piece, utilize the horizontal piece to connect the muscle piece of both sides, when one of them muscle piece produced deformation, the horizontal piece can hinder it to take place deformation, is favorable to reducing the deformation volume, has improved the tensile ability of dragging of muscle piece.
Drawings
Fig. 1 mainly illustrates the overall construction of a cable in the present invention;
fig. 2 is a schematic cross-sectional view of fig. 1, illustrating primarily the construction of the flexural rubber band and the cladding.
In the figure, 1, a cable core; 2. a coating layer; 21. a conductor shield layer; 22. a flame retardant layer; 23. a sheath layer; 24. a steel wire mesh layer; 3. a fold-resistant rubber band; 31. an arc-shaped sheet; 32. a support sheet; 33. a rib piece; 34. a transverse sheet; 4. and (3) filling fibers.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, for utility model discloses a resistant fireproof cable that bends, including cable core 1, coating 2 and anti rubber tape 3 of rolling over. The cable core 1 is four, and anti rubber tape 3 of rolling over is the bar form and is four, and anti rubber tape 3 of rolling over runs through 1 length direction's of cable core both ends, and four anti rubber tape 3 of rolling over evenly distributed along a week of the inner wall of coating 2, and four cable cores 1 are arranged in four anti rubber tape 3 of rolling over respectively.
As shown in fig. 2, the bending-resistant rubber belt 3 includes an arc-shaped piece 31, a support piece 32, a rib piece 33, and a cross piece 34, all of which are made of rubber. The arc piece 31 is the arc form, and the arc piece 31 is contradicted with the inner wall of coating 2, and the arc piece 31 runs through the both ends of coating 2, and the arc length of arc piece 31 is the quarter of 2 inner wall girths of coating. The supporting pieces 32 are integrally formed on the side edges of the two sides of the arc-shaped piece 31, one side of each supporting piece 32, far away from the arc-shaped piece 31, extends to the center point of the cable, one side edge of each supporting piece 32, far away from the arc-shaped piece 31, of each of the two sides is connected with one another, the cable core 1 is located between the supporting pieces 32 on the two sides, and the peripheral surface of the cable core 1 is abutted to the inner walls of the supporting. A triangular shape is formed between the arc-shaped sheet 31 and the supporting sheets 32 at two sides and between the supporting sheets 32 at two sides, and the triangular shape has good stability.
As shown in fig. 2, the rib 33 is rectangular, the length of the rib 33 is the same as the length of the arc piece 31, the side edges of the two sides of the rib 33 in the length direction are respectively connected with the inner wall of the arc piece 31 and the inner wall of the support piece 32, the rib 33 is symmetrically arranged on the two sides of the arc piece 31, and a gap is left between the rib 33 and the cable core 1. When an external force presses the arc-shaped sheet 31 downwards, the rib sheet 33 can block the arc-shaped sheet 31 from pressing downwards, so that the deformation of the anti-bending rubber belt 3 can be reduced, and the damage to the anti-bending rubber belt 3 caused by excessive bending can be reduced; in addition, the angle between the rib 33 and the support piece 32 is 30 °, so that the angle between the rib 33 and the arc piece 31 tends to be a right angle, and the support force of the rib 33 to the arc piece 31 can be enhanced. The transverse sheet 34 is rectangular, the length of the transverse sheet 34 is consistent with that of the ribs 33, the transverse sheet 34 is connected between the ribs 33 on the two sides, the transverse sheet 34 is located between the cable core 1 and the arc-shaped sheet 31, and a gap is reserved between the transverse sheet 34 and the cable core 1. When one of the ribs 33 deforms, the transverse plate 34 can prevent the deformation, so that the deformation amount is reduced, and the pulling resistance of the rib 33 is improved. Gaps among the arc-shaped sheet 31, the support sheet 32, the rib sheets 33, the transverse sheet 34 and the cable core 1 are filled with filling fibers 4, and the fibers in the filling fibers 4 can bear stronger longitudinal breaking force, so that the anti-pulling capacity of the cable is improved, and the service life of the cable is further prolonged.
As shown in fig. 2, the coating layer 2 includes a conductor shielding layer 21, a flame retardant layer 22, a steel wire mesh layer 24 and a sheath layer 23 adhered in sequence from inside to outside. The conductor shielding layer 21 is made of metal paper tape, so that partial discharge generated by other substances in the cable core 1 and the coating layer 2 can be reduced, and an electric field can be shielded. The steel wire mesh layer 24 is formed by weaving steel wires, and the abrasion resistance of the coating layer 2 can be improved. The flame-retardant layer 22 is a synthetic mica tape layer, the volume resistivity of the synthetic mica is 1000 times higher than that of natural mica under high temperature, the electric insulation, the high temperature resistance and the heat insulation are good, and the interior of the cable can be protected from external high temperature within a certain time. The sheath layer 23 is made of a cross-linked polyethylene material, the cross-linked polyethylene material has environmental stress crack resistance and chemical corrosion resistance, and the sheath layer 23 is arranged on the outermost layer, so that the protection capability of the cable is improved.
The implementation principle of the embodiment is as follows: when the cable is bent, the arc-shaped sheet 31 and the support sheets 32 on the two sides are in a triangular shape, and the support sheets 32 on the two sides are also in a triangular shape, so that the triangular shape has better stability and can resist external force; when the arc-shaped piece 31 and the support piece 32 are subjected to external force, the rib pieces 33 can prevent the arc-shaped piece 31 and the support piece 32 from deforming; when one of the ribs 33 deforms, the cross piece 34 can block the deformation, so that the deformation amount is reduced, the bending resistance of the cable is improved, and the service life of the cable is prolonged.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides a resistant fireproof cable that bends, includes cable core (1), cable core (1) is four, four the outside cladding of cable core (1) has coating (2), its characterized in that: be provided with in coating (2) anti rubber tape (3) of rolling over, anti rubber tape (3) of rolling over run through the both ends of coating (2), anti rubber tape (3) of rolling over is four and follows a week evenly distributed of coating (2), anti rubber tape (3) of rolling over include with arc piece (31) that coating (2) inner wall is contradicted, the side of arc piece (31) both sides is extended to cable centre of circle point has backing sheet (32), two backing sheet (32) is kept away from a side interconnect of arc piece (31), cable core (1) is located two between backing sheet (32), arc piece (31) and both sides it has filling fiber (4) to fill between backing sheet (32).
2. A bend-resistant fire-resistant cable according to claim 1, wherein: ribs (33) are connected between two sides of the inner wall of the arc-shaped piece (31) and the inner walls of the support pieces (32) at two sides, and the length of each rib (33) is consistent with that of the arc-shaped piece (31).
3. A bend-resistant fire-resistant cable according to claim 2, wherein: the angle between the rib (33) and the support sheet (32) is less than 90 °.
4. A bend-resistant fire-resistant cable according to claim 2, wherein: both sides be connected with crosspiece (34) between muscle piece (33), cable core (1) is located crosspiece (34), muscle piece (33) and between backing sheet (32).
5. A bend-resistant fire-resistant cable according to claim 4, wherein: gaps are reserved between the transverse sheets (34) and the rib sheets (33) and the cable core (1) respectively.
6. A bend-resistant fire-resistant cable according to claim 1, wherein: coating (2) include with conductor shielding layer (21) that arc piece (31) lateral wall is contradicted, by conductor shielding layer (21) outwards have outward in proper order the cladding have fire-retardant layer (22) and restrictive coating (23).
7. A bend-resistant fire-resistant cable according to claim 6, wherein: a steel wire mesh layer (24) is arranged between the flame-retardant layer (22) and the sheath layer (23).
8. A bend-resistant fire-resistant cable according to claim 6, wherein: the sheath layer (23) is made of a cross-linked polyethylene material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021145943.0U CN212161363U (en) | 2020-06-18 | 2020-06-18 | Bending-resistant fireproof cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021145943.0U CN212161363U (en) | 2020-06-18 | 2020-06-18 | Bending-resistant fireproof cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212161363U true CN212161363U (en) | 2020-12-15 |
Family
ID=73700914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021145943.0U Expired - Fee Related CN212161363U (en) | 2020-06-18 | 2020-06-18 | Bending-resistant fireproof cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212161363U (en) |
-
2020
- 2020-06-18 CN CN202021145943.0U patent/CN212161363U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201215 |