CN213183694U - Low-smoke halogen-free polyolefin sheath flexible fireproof cable - Google Patents
Low-smoke halogen-free polyolefin sheath flexible fireproof cable Download PDFInfo
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- CN213183694U CN213183694U CN202022484179.6U CN202022484179U CN213183694U CN 213183694 U CN213183694 U CN 213183694U CN 202022484179 U CN202022484179 U CN 202022484179U CN 213183694 U CN213183694 U CN 213183694U
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- 239000000779 smoke Substances 0.000 title claims abstract description 25
- 229920000098 polyolefin Polymers 0.000 title claims abstract description 19
- 238000002955 isolation Methods 0.000 claims abstract description 24
- 229910052736 halogen Inorganic materials 0.000 claims abstract description 19
- 150000002367 halogens Chemical class 0.000 claims abstract description 19
- 239000004020 conductor Substances 0.000 claims abstract description 16
- 239000010410 layer Substances 0.000 claims description 96
- 230000003014 reinforcing effect Effects 0.000 claims description 15
- 239000003063 flame retardant Substances 0.000 claims description 11
- 239000011241 protective layer Substances 0.000 claims description 9
- 230000009970 fire resistant effect Effects 0.000 claims description 8
- 239000003365 glass fiber Substances 0.000 claims description 8
- 230000003139 buffering effect Effects 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- 239000000919 ceramic Substances 0.000 claims description 6
- 229920000181 Ethylene propylene rubber Polymers 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 229920003225 polyurethane elastomer Polymers 0.000 claims description 5
- 229920002379 silicone rubber Polymers 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 239000011810 insulating material Substances 0.000 claims description 3
- 239000010453 quartz Substances 0.000 claims description 3
- 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 2
- 239000011256 inorganic filler Substances 0.000 claims description 2
- 229910003475 inorganic filler Inorganic materials 0.000 claims description 2
- 239000011152 fibreglass Substances 0.000 claims 1
- 238000009413 insulation Methods 0.000 abstract description 9
- 238000009941 weaving Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The utility model provides a low smoke and zero halogen polyolefin sheath flexible fireproof cable, including the cable core, the cable core is twisted into the type by four insulation core, and insulation core includes the conductor and winds inner isolation layer and the insulating layer of package outside the conductor from inside to outside, the cable core is crowded outward in proper order and is wrapped outer isolation layer, inner sheath, enhancement layer and outer jacket, be equipped with the inner flexible layer between inner sheath and the enhancement layer, be equipped with the outer flexible layer between enhancement layer and the outer jacket, evenly arrange a plurality of vertical bulges along the normal direction of cable core in the inner flexible layer, evenly arrange a plurality of horizontal bulges along the circumference direction of cable core, horizontal bulge sets firmly between two adjacent vertical bulges; the outer flexible layer is internally provided with a plurality of buffer bulges and a plurality of flexible buffer tubes which are distributed in a staggered manner, and the flexible buffer tubes are internally provided with a plurality of oblique bulges.
Description
Technical Field
The utility model relates to the technical field of electric wires and cables, indicate a flexible fireproof cable of low smoke and zero halogen polyolefin sheath especially.
Background
In the current market, various cable enterprises develop and produce various fire-resistant, fireproof and other various flame-retardant environment-friendly cables, and the cables have low smoke and halogen-free performance but no fire resistance; or the cable has fireproof property, but the cable is hard and not soft, so that the laying use of the cable is influenced.
Therefore, the utility model provides a flexible fireproof cable of low smoke and zero halogen polyolefin sheath to solve the problem that above-mentioned exists.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome prior art's shortcoming, provide a flexible fireproof cable of low smoke and zero halogen polyolefin sheath.
In order to solve the technical problem, the utility model provides a following technical scheme: a low-smoke halogen-free polyolefin sheath flexible fireproof cable comprises a cable core, wherein the cable core is formed by twisting four insulation wire cores, each insulation wire core comprises a conductor, an inner isolation layer and an insulation layer, the inner isolation layer and the insulation layer are wrapped outside the conductor from inside to outside, the outer isolation layer, the inner protection layer, the reinforcing layer and the outer protection layer are sequentially extruded outside the cable core, the inner flexible layer is arranged between the inner protection layer and the reinforcing layer, the outer flexible layer is arranged between the reinforcing layer and the outer protection layer, a plurality of vertical bulges are uniformly arranged in the inner flexible layer along the normal direction of the cable core, a plurality of horizontal bulges are uniformly arranged in the circumferential direction of the cable core, and the horizontal bulges are fixedly arranged between every two adjacent vertical bulges; the outer flexible layer is internally provided with a plurality of buffer bulges and a plurality of flexible buffer tubes which are distributed in a staggered manner, and the flexible buffer tubes are internally provided with a plurality of oblique bulges.
As an optimal technical scheme, the center of cable core is equipped with central filling layer, be equipped with the filling layer between cable core and the outer isolation layer, central filling layer and filling layer all adopt high fire-retardant inorganic substance stopping to fill into.
As a preferred technical solution of the present invention, the inner side wall of the flexible buffer tube and the outer side wall of the reinforcing layer are provided with grooves corresponding to the oblique bulges, and the grooves are used for fixing the oblique bulges; the position department that corresponds perpendicular form swell on the inside wall of enhancement layer and the lateral wall of interior sheath all is equipped with the recess, and this recess is used for fixed perpendicular form swell.
As an optimized technical proposal of the utility model, the vertical bulge, the horizontal bulge and the oblique bulge are all fusiform bodies with elasticity.
As an optimized technical scheme of the utility model, the conductor adopts the compound hank of the naked copper conductor of the non-tinned of fifth kind to form.
As an optimized technical scheme of the utility model, the insulating layer adopts the ethylene propylene rubber as insulating material.
As an optimal technical scheme, interior isolation layer and outer isolation layer all adopt the fine fibrous area of high fire-retardant fire-resistant glass to form around the package, and the overlap rate of winding of interior isolation layer and outer isolation layer is 20% ~ 25%.
As an optimized technical proposal of the utility model, the inner protective layer is made of ceramic silicon rubber.
As an optimized technical scheme of the utility model, the enhancement layer adopts quartzy/high silica glass fiber yarn to weave and forms, and the one-way percentage of coverage of weaving more than or equal to 45% of enhancement layer.
As an optimized technical scheme of the utility model, the outer jacket adopts low smoke and zero halogen environmental protection polyurethane elastomer sheath material to make.
The utility model discloses the beneficial effect who reaches is:
1. the utility model provides a low smoke and zero halogen polyolefin sheath flexible fireproof cable, through the copper conductor that sets up, the insulating layer that ethylene propylene rubber made, the interior sheath that ceramic silicon rubber made, the enhancement layer that quartz/high silica glass fiber yarn woven and the outer jacket that low smoke and zero halogen environmental protection polyurethane elastomer protective layer material was made, make this cable have high temperature resistant, fire-retardant, fire-resistant characteristic, can be used to high-rise building, electric power, oil, chemical industry, boats and ships etc. and require under the environment that the fire prevention safe condition requires higher, high density electric current and other special properties require;
2. through the interior flexible layer and the outer flexible layer that set up, improved the flexibility of cable, the outside harm that causes the cable inside of buffering, and then improve the security and the stability of cable in the use, be favorable to prolonging the life of cable.
The present invention will be described in more detail with reference to the accompanying drawings and examples.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.
In the drawings:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure of the outer flexible layer of the present invention;
FIG. 3 is a schematic view of the structure of the inner flexible layer of the present invention;
reference numbers in the figures: 1. a conductor; 2. an inner barrier layer; 3. an insulating layer; 4. an outer isolation layer; 5. an inner protective layer; 6. a reinforcing layer; 7. an outer jacket; 8. an inner flexible layer; 9. an outer flexible layer; 10. a vertical bulge; 11. a horizontal bulge; 12. a buffer protrusion; 13. a flexible buffer tube; 14. obliquely bulging; 15. a center-fill layer; 16. and (5) filling the layer.
Detailed Description
The terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like in the specification indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b): as shown in fig. 1-3, the utility model provides a flexible fireproof cable of low smoke and zero halogen polyolefin sheath, including the cable core, the cable core is twisted into the type by four insulation core, and insulation core includes conductor 1 and winds inner isolation layer 2 and insulating layer 3 outside conductor 1 from inside to outside, the cable core is crowded package outer isolation layer 4, inner sheath 5, enhancement layer 6 and outer jacket 7 outward in proper order, be equipped with inner flexible layer 8 between inner sheath 5 and enhancement layer 6, be equipped with outer flexible layer 9 between enhancement layer 6 and the outer jacket 7, evenly arrange a plurality of vertical bulges 10 along the normal direction of cable core in the inner flexible layer 8, evenly arrange a plurality of horizontal bulges 11 along the circumference direction of cable core, horizontal bulges 11 set firmly between two adjacent vertical bulges 10; a plurality of buffering bulges 12 and a plurality of flexible buffer tubes 13 are arranged in the outer flexible layer 9, the buffering bulges 12 and the flexible buffer tubes 13 are distributed in a staggered manner, and a plurality of oblique bulges 14 are arranged in the flexible buffer tubes 13;
a plurality of vertical bulges 10, a plurality of horizontal bulges 11, a plurality of buffer bulges 12 and a plurality of flexible buffer tubes 13 can improve the flexibility of the cable, thereby buffering the external harm to the inside of the cable, further improving the safety and stability of the cable in the use process, and being beneficial to prolonging the service life of the cable.
Furthermore, a center filling layer 15 is arranged in the center of the cable core, a filling layer 16 is arranged between the cable core and the outer isolation layer 4, and the center filling layer 15 and the filling layer 16 are both filled with high-flame-retardant inorganic filler, so that the cable core has the functions of heat insulation and fire resistance.
Further, the inner side wall of the flexible buffer tube 13 and the outer side wall of the reinforcing layer 6 are provided with grooves corresponding to the oblique bulges 14, and the grooves are used for fixing the oblique bulges 14; the positions of the inner side wall of the reinforcing layer 6 and the outer side wall of the inner protection layer 5 corresponding to the vertical bulges 10 are provided with grooves, and the grooves are used for fixing the vertical bulges 10.
Furthermore, the vertical bulges 10, the horizontal bulges 11 and the oblique bulges 14 are all shuttle-shaped bodies with elasticity, and the buffering effect is strong.
Furthermore, the conductor 1 is formed by twisting a fifth non-tinned bare copper conductor.
Furthermore, the insulating layer 3 adopts ethylene propylene rubber as an insulating material, and the ethylene propylene rubber has high temperature resistance, corona resistance and excellent electrical insulating property.
Furthermore, the inner isolation layer 2 and the outer isolation layer 4 are formed by wrapping high-flame-retardant fire-resistant glass fiber belts, the wrapping overlapping rate of the inner isolation layer 2 and the outer isolation layer 4 is 20% -25%, the high-flame-retardant fire-resistant glass fiber belts can keep good flexibility in a normal state, the mechanical strength and the high-temperature resistance level are high, the high-flame-retardant fire-resistant glass fiber belts are not prone to wrinkling in the wrapping process, and the high-flame-retardant fire-resistant glass fiber belts have good technological operability.
Further, interior sheath 5 adopts ceramic silicon rubber to make, and ceramic silicon rubber has softness, does not have halogen, nontoxic, tasteless characteristic, does not have harmful effects to human body, natural environment when burning, and under conflagration, high temperature condition, can burn into hard ceramic form crust protective layer name colleague and also have good insulating nature, can play fine isolated flame, the insulating effect of fire prevention to guaranteed under the conflagration condition, the unobstructed of electric power, communication.
Furthermore, the reinforcing layer 6 is formed by weaving quartz/high silica glass fiber yarns, and the weaving unidirectional coverage rate of the reinforcing layer 6 is more than or equal to 45%.
Further, the outer protective layer 7 is made of a low-smoke halogen-free environment-friendly polyurethane elastomer protective layer material, and the low-smoke halogen-free environment-friendly polyurethane elastomer protective layer material has the characteristics of flame retardance, softness, wear resistance and flex resistance.
The above embodiments are merely to describe the preferred embodiments of the present invention, and are not to limit the scope of the present invention, and various modifications and improvements made by the technical solutions of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the design spirit of the present invention.
The utility model discloses the part that does not relate to all is the same with prior art or can adopt prior art to realize.
Claims (10)
1. A low-smoke halogen-free polyolefin sheath flexible fireproof cable is characterized by comprising a cable core, the cable core is formed by twisting four insulating wire cores, each insulating wire core comprises a conductor (1), an inner insulating layer (2) and an insulating layer (3) which are wrapped outside the conductor (1) from inside to outside, the cable core is sequentially extruded with an outer isolation layer (4), an inner protection layer (5), a reinforcing layer (6) and an outer protection layer (7), an inner flexible layer (8) is arranged between the inner protective layer (5) and the reinforcing layer (6), an outer flexible layer (9) is arranged between the reinforcing layer (6) and the outer protective layer (7), a plurality of vertical bulges (10) are uniformly arranged in the inner flexible layer (8) along the normal direction of the cable core, a plurality of horizontal bulges (11) are uniformly arranged along the circumferential direction of the cable core, the transverse bulges (11) are fixedly arranged between two adjacent vertical bulges (10); be equipped with a plurality of buffering protrudingly (12) and a plurality of flexible buffer tube (13) in outer flexible layer (9), a plurality of buffering are protruding (12) and a plurality of flexible buffer tube (13) crisscross distribution, and are equipped with a plurality of slant swell (14) in flexible buffer tube (13).
2. The flexible fireproof cable with the low smoke and zero halogen polyolefin sheath is characterized in that a center filling layer (15) is arranged in the center of the cable core, a filling layer (16) is arranged between the cable core and the outer isolation layer (4), and the center filling layer (15) and the filling layer (16) are filled with high-flame-retardant inorganic filler.
3. The flexible fireproof cable with the low smoke and zero halogen polyolefin sheath according to claim 1, wherein a groove is formed on the inner side wall of the flexible buffer tube (13) and the outer side wall of the reinforcing layer (6) at the position corresponding to the oblique bulge (14), and the groove is used for fixing the oblique bulge (14); the position department that corresponds perpendicular form swell (10) on the inside wall of enhancement layer (6) and on the lateral wall of interior sheath (5) all is equipped with the recess, and this recess is used for fixed perpendicular form swell (10).
4. The flexible fireproof cable with the low smoke and zero halogen polyolefin sheath of claim 1, wherein the vertical bulges (10), the horizontal bulges (11) and the oblique bulges (14) are all shuttle-shaped bodies with elasticity.
5. The flexible fireproof cable with the low smoke and zero halogen polyolefin sheath according to claim 1, wherein the conductor (1) is formed by twisting a fifth non-tinned bare copper conductor.
6. The flexible fireproof cable with the low smoke and zero halogen polyolefin sheath according to claim 1, wherein the insulating layer (3) adopts ethylene propylene rubber as an insulating material.
7. The flexible fireproof cable with the low smoke and zero halogen polyolefin sheath as claimed in claim 1, wherein the inner isolation layer (2) and the outer isolation layer (4) are both formed by wrapping high flame retardant and fire resistant fiberglass tapes, and the wrapping overlapping rate of the inner isolation layer (2) and the outer isolation layer (4) is 20% -25%.
8. The flexible fireproof cable with the low smoke and zero halogen polyolefin sheath according to claim 1, wherein the inner sheath layer (5) is made of ceramic silicon rubber.
9. The flexible fireproof cable with the low smoke and zero halogen polyolefin sheath according to claim 1, wherein the reinforcing layer (6) is woven by quartz/high silica glass fiber yarn, and the woven unidirectional coverage rate of the reinforcing layer (6) is greater than or equal to 45%.
10. The flexible fireproof cable with the low smoke zero halogen polyolefin sheath according to claim 1, wherein the outer sheath (7) is made of a low smoke zero halogen environment-friendly polyurethane elastomer sheath material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022484179.6U CN213183694U (en) | 2020-10-30 | 2020-10-30 | Low-smoke halogen-free polyolefin sheath flexible fireproof cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022484179.6U CN213183694U (en) | 2020-10-30 | 2020-10-30 | Low-smoke halogen-free polyolefin sheath flexible fireproof cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213183694U true CN213183694U (en) | 2021-05-11 |
Family
ID=75780607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022484179.6U Active CN213183694U (en) | 2020-10-30 | 2020-10-30 | Low-smoke halogen-free polyolefin sheath flexible fireproof cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213183694U (en) |
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2020
- 2020-10-30 CN CN202022484179.6U patent/CN213183694U/en active Active
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