CN220065223U - Anti-extrusion anti-torsion photoelectric integrated fire-proof cable - Google Patents
Anti-extrusion anti-torsion photoelectric integrated fire-proof cable Download PDFInfo
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- CN220065223U CN220065223U CN202320732431.1U CN202320732431U CN220065223U CN 220065223 U CN220065223 U CN 220065223U CN 202320732431 U CN202320732431 U CN 202320732431U CN 220065223 U CN220065223 U CN 220065223U
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- resistant
- torsion
- cable core
- cable
- extrusion
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- 238000001125 extrusion Methods 0.000 title claims abstract description 16
- 239000010410 layer Substances 0.000 claims abstract description 28
- 230000000903 blocking effect Effects 0.000 claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 230000009970 fire resistant effect Effects 0.000 claims abstract description 22
- 238000005187 foaming Methods 0.000 claims abstract description 19
- 239000013307 optical fiber Substances 0.000 claims abstract description 18
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910052802 copper Inorganic materials 0.000 claims abstract description 13
- 239000010949 copper Substances 0.000 claims abstract description 13
- 239000011241 protective layer Substances 0.000 claims abstract description 9
- 230000002787 reinforcement Effects 0.000 claims abstract description 9
- 239000003063 flame retardant Substances 0.000 claims abstract description 8
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 8
- 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 abstract description 7
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 239000004809 Teflon Substances 0.000 claims description 5
- 229920006362 Teflon® Polymers 0.000 claims description 5
- 239000010445 mica Substances 0.000 claims description 5
- 229910052618 mica group Inorganic materials 0.000 claims description 5
- 239000004020 conductor Substances 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 230000005693 optoelectronics Effects 0.000 claims description 3
- -1 polyethylene Polymers 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 abstract description 46
- 230000006835 compression Effects 0.000 abstract description 8
- 238000007906 compression Methods 0.000 abstract description 8
- 239000000126 substance Substances 0.000 abstract description 3
- 230000005622 photoelectricity Effects 0.000 abstract 1
- 239000006260 foam Substances 0.000 description 7
- 230000008054 signal transmission Effects 0.000 description 4
- 239000000835 fiber Substances 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000002341 toxic gas Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
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- Insulated Conductors (AREA)
Abstract
The utility model relates to the technical field of optical cables, in particular to an extrusion-resistant torsion-resistant photoelectric integrated fire-resistant cable, which comprises: the secondary cable core comprises an optical fiber unit and a plurality of insulated copper wires stranded with the optical fiber unit according to the pitch, and the exterior of the secondary cable core is wrapped with a non-hygroscopic wrapping tape and a flame-retardant PVC inner sheath extruded outside the secondary cable core; the main cable core comprises an FRP central reinforcement and a plurality of secondary cable cores distributed along the circumference of the FRP central reinforcement; a plurality of water blocking yarns are arranged close to the periphery of the FRP central reinforcing piece; the water blocking belt is wrapped on the outer layer of the main cable core; the TPU foaming filling rod is arranged at the outer side of the water blocking belt, is arranged in a triangular shape with the adjacent secondary cable core, and is provided with water blocking yarns at the side; and the outer protective layer is wrapped on the outer layers of the water-blocking tape and the TPU foaming filling rod. The utility model solves the problems that the existing optical cable is not compression-resistant, torsion-resistant, interference-resistant, easy to deform and can not be used in a strong chemical environment, and also solves the problem that the optical cable can not be integrated with photoelectricity.
Description
Technical Field
The utility model relates to the technical field of optical cables, in particular to an extrusion-resistant torsion-resistant photoelectric integrated fire-resistant cable.
Background
In recent years, optical cables are widely used as an advanced technology, and requirements on the performance of the optical cables are also increasing, so that various high-performance optical cables are generated. At present, the compression resistance and the torsion resistance of the optical cable are two very important performances, but most optical cables do not have very excellent compression resistance and torsion resistance, and are easy to deform, damage and break when being subjected to external pressure and torsion due to interference of external storage environment, transportation environment and other factors.
Fire-resistant fiber optic cables are a particular application of fiber optic cables in the field of communications, such as office buildings, mining, etc., where the most important properties of the cable are flame retardance, fire resistance. In the fire disaster, the optical cable can keep the line integrity for one second more, so people can escape one minute more. At present, the optical cable is fireproof by the material characteristics of the optical cable, such as a fireproof belt, and a high-flame-retardant fireproof outer protective material is used for meeting the fireproof requirement.
In addition, the current optical cable cannot be used in a strong chemical environment, and cannot be integrated with the light and electricity.
Disclosure of Invention
In order to solve at least one technical problem, the utility model provides an anti-extrusion anti-torsion photoelectric integrated fire-resistant cable, which is characterized in that a plurality of insulated copper wires and optical fiber units are twisted into a secondary cable core, the secondary cable core and an FRP central reinforcing member form a main cable core, and a TPU foaming filling rod and a multi-layer wrapped outer protective layer are arranged on the outer side of the secondary cable core, so that the problems that the existing optical cable is not compression-resistant, torsion-resistant, interference-resistant, easy to deform and cannot be used in an intensive chemical environment are solved, and the problem that the optical cable cannot be photoelectric integrated is also solved.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an extrusion-resistant torsion-resistant optoelectronic integrated fire-resistant cable comprising:
the secondary cable core comprises an optical fiber unit and a plurality of insulated copper wires stranded with the optical fiber unit according to a pitch, wherein the exterior of the secondary cable core is wrapped with a non-hygroscopic wrapping tape and a flame-retardant PVC inner sheath extruded outside the secondary cable core;
the main cable core comprises an FRP central reinforcement and a plurality of secondary cable cores distributed along the circumference of the FRP central reinforcement; a plurality of water blocking yarns are arranged close to the periphery of the FRP central reinforcing piece;
the water blocking belt is wrapped on the outer layer of the main cable core;
the TPU foaming filling rod is arranged at the outer side of the water blocking belt and is embedded between the adjacent main cable cores, and water blocking yarns are arranged at the side of the TPU foaming filling rod;
and the outer protective layer is wrapped on the outer layers of the water-blocking tape and the TPU foaming filling rod.
Preferably, the optical fiber unit comprises a number of optical fibers and an extruded and restarted outside LSZH jacket.
Preferably, the insulated copper wire comprises a plurality of solid copper conductors extruded with a polyethylene insulation layer on the outside.
Preferably, the outer protective layer is a fire-resistant layer, a stainless steel woven mesh and an outer sheath from inside to outside.
Preferably, the fire-resistant layer and the outer sheath are a mica tape fire-resistant layer and a teflon outer sheath respectively.
Preferably, the secondary cable cores are comma-shaped, a plurality of secondary cable cores are split, the comma heads are outwards, the tail ends are inwards, and the TPU foaming filling bars are positioned at the tail end concave positions.
Preferably, the number of the secondary cable cores and the TPU foaming filling rods is 3
Compared with the prior art, the utility model has the following beneficial effects:
according to the utility model, a plurality of insulated copper wires and optical fiber units are twisted into the secondary cable core, so that one optical cable can realize broadband access, equipment power utilization and signal transmission at the same time; the FRP central reinforcing piece is arranged in the center of the secondary cable core, so that the tensile strength of the optical cable is improved, the flame-retardant PVC inner sheath extruded outside the secondary cable core is improved, the high temperature resistance and the fireproof performance of the optical cable are improved, and toxic gas is not generated when the optical cable burns; the water blocking yarns can effectively prevent moisture from entering the optical cable, so that the dry water blocking of the optical cable is realized, and the water blocking cost is reduced; the TPU foaming filling rod is arranged to fill the inner space of the optical cable, so that the compression resistance and the overall structural strength of the optical cable are improved; the fire-resistant layer of the mica tape further improves the high temperature resistance and fire resistance of the optical cable, and the stainless steel woven mesh effectively forms a metal shielding layer while increasing the tensile and compressive properties of the optical cable, so that the optical cable has the advantages of good shielding performance, strong anti-interference capability, high signal transmission rate and the like; the teflon outer sheath ensures that the optical cable is not moisture-absorbing and nonflammable, is extremely stable to oxygen and ultraviolet rays, has good insulating property and can adapt to complex special environments, pipelines such as coal mines, petrochemical industry and the like, tunnels such as highway railways and the like, and environments such as long-term high temperature, high humidity and strong chemistry and the like.
Drawings
FIG. 1 is a schematic structural view of an anti-extrusion and anti-torsion photoelectric integrated fire-resistant cable;
in the figure: 1. a solid copper conductor; 2. an insulating layer; 3. an optical fiber; 4. an LSZH sheath; 5. a non-hygroscopic tape; 6. a flame retardant PVC inner sheath; 7. FRP center reinforcements; 8. a water blocking yarn; 9. a water blocking tape; 10. TPU foaming filling bars; 11. a refractory layer; 12. stainless steel woven mesh; 13. an outer sheath.
Detailed Description
In order that those skilled in the art will better understand the technical solutions of the present utility model, the following description will clearly and completely describe the technical solutions of the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments of the present utility model.
Referring to fig. 1, an anti-extrusion and anti-torsion photoelectric integrated cable includes:
the secondary cable core comprises an optical fiber 3 unit and a plurality of insulated copper wires stranded with the optical fiber 3 unit according to the pitch, and the secondary cable core is externally wrapped with a non-hygroscopic wrapping tape 5 and a flame-retardant PVC inner sheath 6 extruded outside the secondary cable core;
the main cable core comprises an FRP central reinforcement 7 and a plurality of secondary cable cores distributed along the circumference of the FRP central reinforcement 7; a plurality of water-blocking yarns 8 are arranged around the FRP central reinforcing member 7;
a water blocking tape 9 which is wrapped on the outer layer of the main cable core;
the TPU foaming filling rod 10 is arranged outside the water blocking belt 9 and is embedded between adjacent main cable cores, and water blocking yarns 8 are arranged at the side of the TPU foaming filling rod 10;
and the outer protective layer is wrapped on the outer layers of the water blocking tape 9 and the TPU foaming filling rod 10.
According to the utility model, a plurality of insulated copper wires and optical fibers 3 units are twisted into a secondary cable core, so that one optical cable can realize broadband access, equipment power utilization and signal transmission at the same time; the FRP central reinforcing piece 7 is arranged in the center of the secondary cable core, so that the tensile strength of the optical cable is improved, the flame-retardant PVC inner sheath 6 extruded outside the secondary cable core is improved, the high temperature resistance and the fireproof performance of the optical cable are improved, and toxic gas is not generated when the optical cable burns; the water blocking yarns 8 can effectively prevent moisture from entering the optical cable, so that the dry water blocking of the optical cable is realized, and the water blocking cost is reduced; by providing the TPU foam filler rod 10, the inner space of the optical cable can be filled, and the compression resistance and the overall structural strength of the optical cable can be improved.
It should be noted that, the above-mentioned insulated copper wire may be formed by a plurality of solid copper conductors 1 with polyethylene insulation layers 2 extruded on the outer sides, and in order to further improve the overall structural strength of the optical cable, TPU foam filling rods 10 are embedded between adjacent main cable cores and form an integral structure. In this embodiment, the number of insulated copper wires is 2.
In one embodiment, the fiber 3 unit includes a number of optical fibers 3 and an extruded and restarted outside LSZH jacket 4. The LSZH sheath 4 has the function of enabling the optical cable to have higher fire resistance, and also has the characteristic of low smoke and no halogen even when fire happens, so that the optical cable is more environment-friendly.
In one embodiment, the outer protective layer is a refractory layer 11, a stainless steel woven mesh 12 and an outer sheath 13 in order from inside to outside. In this embodiment, the refractory layer 11 and the outer sheath 13 are a mica tape refractory layer and a teflon outer sheath, respectively.
In the embodiment, the mica tape fire-resistant layer 11 further improves the high temperature resistance and fire resistance of the optical cable, and the stainless steel woven mesh 12 effectively forms a metal shielding layer while increasing the tensile and compressive properties of the optical cable, so that the optical cable has the advantages of good shielding performance, strong anti-interference capability, high signal transmission rate and the like; the teflon outer sheath 13 ensures that the optical cable does not absorb moisture and is incombustible, and is extremely stable to oxygen and ultraviolet rays; the insulating material has good insulating property and can adapt to complex special environments, such as coal mines, petrochemical pipelines, tunnels of highways, railways and the like, and environments of long-term high temperature, high humidity, strong chemistry and the like.
In one embodiment, the secondary cable core is comma-shaped with the comma head end outward and the tail end inward, and the TPU foam filler rod 10 is located in the recess of the tail end. In the embodiment, the number of the secondary cable cores and the TPU foam filling rods 10 is 3
It should be noted that, the shape of the secondary cable core is just one of the shapes, for example, a circle, and the primary secondary cable core can be tightly attached to the TPU foam filling rod 10, so that the overall structure of the optical cable is round and full, and the compression resistance and the overall structural strength of the optical cable can be ensured. In addition, the number of the secondary cable cores and the TPU foam filling rods 10 can be selected according to actual needs, and the number of the secondary cable cores and the TPU foam filling rods is not limited by the utility model.
The utility model provides an anti-extrusion torsion-resistant photoelectric integrated fire-resistant cable, which is characterized in that a plurality of insulated copper wires and optical fibers 3 are twisted into a secondary cable core, the secondary cable core and an FRP central reinforcing member 7 form a main cable core, and a TPU foaming filling rod 10 and a multi-layer wrapped outer protective layer are arranged on the outer side of the secondary cable core, so that the problems that the traditional optical cable is not compression-resistant, torsion-resistant, easy to deform and cannot be used in an intensive environment are solved, and the problem that the optical cable cannot be photoelectric integrated is also solved. While the foregoing is directed to embodiments of the present utility model, it will be appreciated by those skilled in the art that various modifications and changes can be made without departing from the principles of the present utility model, and such modifications and changes should be considered as being within the scope of the present utility model.
Claims (7)
1. An anti-extrusion anti-torsion photoelectric integrated fire-resistant cable, comprising:
the secondary cable core comprises an optical fiber (3) unit and a plurality of insulated copper wires stranded with the optical fiber (3) unit according to a pitch, wherein the exterior of the secondary cable core is wrapped with a non-hygroscopic wrapping tape (5) and a flame-retardant PVC inner sheath (6) extruded outside the secondary cable core;
the main cable core comprises an FRP central reinforcement (7) and a plurality of secondary cable cores circumferentially distributed along the FRP central reinforcement (7); a plurality of water blocking yarns (8) are arranged close to the periphery of the FRP central reinforcing piece (7);
a water blocking tape (9) which is wrapped on the outer layer of the main cable core;
the TPU foaming filling rod (10) is arranged at the outer side of the water blocking belt (9) and is embedded between adjacent main cable cores, and water blocking yarns (8) are arranged at the side of the TPU foaming filling rod (10);
the outer protective layer is wrapped on the outer layers of the water-blocking tape (9) and the TPU foaming filling rod (10).
2. The extrusion-resistant torsion-resistant optoelectronic integrated fire-resistant cable of claim 1 wherein the optical fiber (3) unit comprises a plurality of optical fibers (3) and an extruded and rebuilt outside LSZH jacket (4).
3. The extrusion-resistant torsion-resistant optoelectronic integrated fire-resistant cable according to claim 2, characterized in that the insulated copper wire comprises a solid copper conductor (1) and a polyethylene insulation layer (2) extruded on the outside thereof.
4. The anti-extrusion anti-torsion photoelectric integrated fire-resistant cable according to claim 1, wherein the outer protective layer is a fire-resistant layer (11), a stainless steel woven mesh (12) and an outer sheath (13) in sequence from inside to outside.
5. The extrusion-resistant torsion-resistant photoelectric integrated fire-resistant cable according to claim 4, wherein the fire-resistant layer (11) and the outer sheath (13) are a mica tape fire-resistant layer and a teflon outer sheath, respectively.
6. The extrusion-resistant torsion-resistant photoelectric integrated fire-resistant cable according to any one of claims 1 to 5, wherein the secondary cable cores are comma-shaped, a plurality of the secondary cable cores are split, the comma heads are outwards, the tail ends are inwards, and the TPU foaming filling rod (10) is positioned at the tail end concave position.
7. The extrusion-resistant torsion-resistant photoelectric integrated fire-resistant cable according to claim 6, wherein the number of the secondary cable cores and the number of the TPU foaming filling rods (10) are 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320732431.1U CN220065223U (en) | 2023-04-06 | 2023-04-06 | Anti-extrusion anti-torsion photoelectric integrated fire-proof cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320732431.1U CN220065223U (en) | 2023-04-06 | 2023-04-06 | Anti-extrusion anti-torsion photoelectric integrated fire-proof cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220065223U true CN220065223U (en) | 2023-11-21 |
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ID=88787149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320732431.1U Active CN220065223U (en) | 2023-04-06 | 2023-04-06 | Anti-extrusion anti-torsion photoelectric integrated fire-proof cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220065223U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117316524A (en) * | 2023-11-29 | 2023-12-29 | 江苏南方通信科技有限公司 | An early-warning fireproof composite optical cable |
| CN120108822A (en) * | 2025-03-19 | 2025-06-06 | 江苏星耀电缆有限公司 | A photoelectric combined cable with enhanced electromagnetic shielding effect |
-
2023
- 2023-04-06 CN CN202320732431.1U patent/CN220065223U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117316524A (en) * | 2023-11-29 | 2023-12-29 | 江苏南方通信科技有限公司 | An early-warning fireproof composite optical cable |
| CN117316524B (en) * | 2023-11-29 | 2024-01-26 | 江苏南方通信科技有限公司 | Early warning type fireproof composite optical cable |
| CN120108822A (en) * | 2025-03-19 | 2025-06-06 | 江苏星耀电缆有限公司 | A photoelectric combined cable with enhanced electromagnetic shielding effect |
| CN120108822B (en) * | 2025-03-19 | 2025-10-28 | 江苏星耀电缆有限公司 | A photoelectric combination cable with enhanced electromagnetic shielding effect |
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