CN210090762U - Leading-in cable for outdoor wiring - Google Patents
Leading-in cable for outdoor wiring Download PDFInfo
- Publication number
- CN210090762U CN210090762U CN201920950020.3U CN201920950020U CN210090762U CN 210090762 U CN210090762 U CN 210090762U CN 201920950020 U CN201920950020 U CN 201920950020U CN 210090762 U CN210090762 U CN 210090762U
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- Prior art keywords
- layer
- sheath
- tight
- cable
- water
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- Expired - Fee Related
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- 239000010410 layer Substances 0.000 claims abstract description 57
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000002184 metal Substances 0.000 claims abstract description 30
- 229910052751 metal Inorganic materials 0.000 claims abstract description 30
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 16
- 229920006231 aramid fiber Polymers 0.000 claims abstract description 16
- 239000010959 steel Substances 0.000 claims abstract description 16
- 230000001681 protective effect Effects 0.000 claims abstract description 14
- 230000000903 blocking effect Effects 0.000 claims abstract description 13
- 239000002674 ointment Substances 0.000 claims abstract description 11
- 229920003023 plastic Polymers 0.000 claims abstract description 11
- 239000004033 plastic Substances 0.000 claims abstract description 11
- 239000011241 protective layer Substances 0.000 claims abstract description 9
- 239000013307 optical fiber Substances 0.000 claims description 35
- 239000004745 nonwoven fabric Substances 0.000 claims description 12
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 11
- 239000004760 aramid Substances 0.000 claims description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 239000011888 foil Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 5
- 239000004800 polyvinyl chloride Substances 0.000 claims description 5
- 229920002635 polyurethane Polymers 0.000 claims description 4
- 239000004814 polyurethane Substances 0.000 claims description 4
- 230000008961 swelling Effects 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims 1
- 239000000835 fiber Substances 0.000 abstract description 19
- 238000005253 cladding Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 abstract description 3
- 230000003287 optical effect Effects 0.000 description 25
- 239000005030 aluminium foil Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 241000700159 Rattus Species 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 239000002033 PVDF binder Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 230000017105 transposition Effects 0.000 description 1
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Abstract
The utility model relates to an introducing cable for outdoor wiring belongs to central beam tube armoured fiber technical field, including oversheath and tight package optic fibre, tight package optic fibre has wrapped up the beam tube layer from inside to outside in proper order, aramid fiber layer, protective layer, inner sheath, two-sided plastic-coated steel band and metal protective sheath, and the beam tube layer includes the beam tube, and it has the ointment layer to fill between beam tube and the tight package optic fibre, and tight package optic fibre includes bare fiber and tight cover, and the tight cover cladding is in bare fiber week side, and the metal protective sheath periphery is located to the oversheath cover, is provided with the water blocking area between inner sheath and the two-sided plastic-coated steel band. The utility model discloses have better water-blocking nature, can guarantee the effect of optic fibre normal transmission signal under the more environment of liquid water or vapor.
Description
Technical Field
The utility model belongs to the technical field of central beam tube armoured fiber technology and specifically relates to a cable is introduced with outdoor wiring is related to.
Background
The armored optical fiber is characterized in that a protective armor is wrapped outside the optical fiber, and the armored optical fiber is mainly used for meeting the requirements of customers, protecting the fiber core inside and has the functions of resisting high pressure, stretching and rat bite and the like. The armored optical fiber can be divided into indoor armored optical fiber and outdoor armored optical fiber according to the using place, and the performance of the outdoor armored optical cable such as mechanical properties and environmental properties such as tensile strength, pressure resistance and corrosion resistance are more strict than those of the indoor armored optical cable.
The present chinese utility model patent with a publication number of CN208672877U discloses a bunched armored optical cable, include: the cable comprises a cable core, an inner sheath, a steel pipe, an armor layer and an outer sheath; the cable core includes the optic fibre unit of many transposition, and the inner sheath cladding is outside at the cable core, and the steel-pipe sheath is established in the inner sheath outside, and the armor cladding is outside at the steel pipe, and the armor adopts the wire to weave and forms, and the restrictive coating cladding is outside at the armor.
The technical scheme has the following technical defects: because the armor layer and the steel pipe which are woven by the metal wires are arranged between the cable core and the outer sheath, when water vapor or liquid water in the environment permeates into the bundle-shaped armored optical cable, the steel pipe and the metal wires in the bundle-shaped armored optical cable can be corroded, so that the cable core cannot be protected, and the signal transmission in the optical fiber transmission process is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an outdoor wiring is with introducing cable, it has better water-blocking nature, can guarantee the effect of optic fibre normal transmission signal under the more environment of liquid water or vapor.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
the utility model provides an introducing cable for outdoor wiring, includes the oversheath, still includes the optical fiber that tightly wraps, the outside optical fiber that tightly wraps has wrapped up tube layer, aramid fiber layer, protective layer, inner sheath, two-sided plastic-coated steel band and metal protective sheath from inside to outside in proper order, the tube layer is including the beam pipe, be provided with the ointment layer through coating process between beam pipe and the optical fiber that tightly wraps up, the optical fiber that tightly wraps up includes bare fiber and tight cover, tight cover cladding is in bare fiber week side, the outer sheath cover is located two-sided plastic-coated steel band periphery, be provided with the water-blocking tape between inner sheath and the two-sided plastic-coated steel band, the water-blocking tape includes non-woven fabrics layer and water-swelling layer, the non-woven fabrics layer is provided with two-layerly, water.
Through adopting above-mentioned technical scheme, it has the ointment layer to fill between beam tube and the tight package optic fibre, and the ointment layer can prevent water smoke and bare fiber contact, and the water-swelling layer in the water blocking area can absorb the moisture volume and take place the inflation, is full of the clearance between inner sheath and the two-sided plastic-coated steel band, prevents that moisture from further permeating to outdoor wiring with leading in the cable to produce the effect of blocking water better.
The utility model discloses further set up to: the protective layer is an aluminum foil longitudinal wrapping tape, and the aluminum foil longitudinal wrapping tape is spirally wrapped on the outer side wall of the tube bundling layer.
By adopting the technical scheme, the aluminum foil longitudinal wrapping tape can enhance the use strength of the optical fiber, play a role in shielding other electromagnetic signal interference and prevent water vapor from transversely entering the cable core.
The utility model discloses further set up to: the metal protective sleeve is a metal hose, and the outer wall of the metal hose is provided with a spiral groove.
By adopting the technical scheme, the metal hose can prevent rats from biting and resisting abrasion, so that the optical cable is prevented from being mechanically damaged in the laying or running process, and the compression resistance and tensile resistance of the optical cable are improved; the grooves are arranged, so that the weight of the optical cable can be reduced, and meanwhile, the bending performance of the metal hose can be enhanced.
The utility model discloses further set up to: the aramid fiber layer is composed of a plurality of aramid fibers, and the aramid fibers are coated on the outer side of the tube layer along the length direction of the tightly-coated optical fibers.
By adopting the technical scheme, the aramid fiber is light in weight, can strengthen the longitudinal tensile strength of the optical fiber, and simultaneously reduces the weight of the optical cable.
The utility model discloses further set up to: and the inner jacket is provided with a reinforcing steel wire along the length direction.
Through adopting above-mentioned technical scheme, the pulling force that the reinforcing steel wire can strengthen the optical cable makes the anti ability reinforcing of buckling of optical cable simultaneously.
The utility model discloses further set up to: the number of the reinforcing steel wires is at least two, and the reinforcing steel wires are evenly distributed along the circumferential direction of the inner sheath.
Through adopting above-mentioned technical scheme, strengthen steel wire evenly distributed in the circumference of inner sheath for optical cable focus and geometry focus coincide, the optical cable position can be more stable after erectting and installing.
The utility model discloses further set up to: the material of tight sleeve is polyvinyl chloride or polyurethane.
By adopting the technical scheme, the polyurethane or polyvinyl chloride material has excellent performances of water resistance, flame retardance, elasticity and the like, so that the bare optical fiber is protected and can be used for signal transmission in a stable environment.
The utility model discloses further set up to: the outer sheath is internally provided with a tearing rope which is positioned on the side wall of one side of the outer sheath close to the metal protective sleeve.
Through adopting above-mentioned technical scheme, be provided with and tear the rope, the oversheath that can be more convenient tears the optical cable exocuticle to save installation time.
The utility model discloses further set up to: the outer diameter of the tight sleeve ranges from 0.6mm to 0.9 mm.
By adopting the technical scheme, under the normal condition, the outer diameter range of the tight sleeve is beneficial to optical cable production equipment in the tight-buffered optical fiber adaptation industry between ranges, so that a finished optical cable is manufactured.
To sum up, the utility model discloses a beneficial technological effect does:
1. the water blocking tape is arranged, so that water permeating into the optical cable can be absorbed in time, and the water is further prevented from entering the optical cable;
2. the grease layer is arranged, so that water is further prevented from entering the optical fiber, and mechanical forces such as vibration, impact and bending of the optical fiber are buffered, so that the optical fiber can normally work in a stable environment;
3. be provided with the reinforcing bar, can increase the tensile strength of optical cable, strengthen the anti bending capability of optical cable simultaneously.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention showing the internal structure;
FIG. 3 is a schematic view of the metal protective sheath according to the present invention;
fig. 4 is a schematic structural view of the present invention showing that the outer sheath wraps the metal protection layer.
In the figure, 1, an outer sheath; 11. tearing the rope; 2. tightly wrapping the optical fiber; 21. a bare optical fiber; 22. tightening the sleeve; 3. a bundle pipe layer; 31. a bundle tube; 4. an aramid fiber layer; 41. aramid fibers; 5. a protective layer; 51. aluminum foil longitudinal wrapping tapes; 6. an inner sheath; 61. reinforcing steel wires; 7. coating a plastic steel belt on two sides; 8. a metal protective sheath; 81. a metal hose; 811. a groove; 82. a seal tooth; 9. an ointment layer; 10. a water blocking tape; 101. a non-woven fabric layer; 102. a water-swellable layer.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, for the utility model discloses an introducing cable for outdoor wiring, including tight package optic fibre 2, tight package optic fibre 2 includes bare fiber 21 and tight cover 22, and the material of tight cover 22 is polyvinyl chloride, polyurethane or polyvinylidene fluoride, and the external diameter scope of tight cover 22 is between 0.6mm to 0.9mm, and the preferred 0.6mm of this embodiment.
Referring to fig. 1 and 2, a bundle tube layer 3, an aramid fiber layer 4, a protective layer 5, an inner sheath 6, a double-sided plastic-coated steel strip 7, a metal protective sleeve 8 and an outer sheath 1 are sequentially wrapped outside a tightly-packaged optical fiber 2 from inside to outside, the bundle tube layer 3 comprises a bundle tube 31, an ointment layer 9 is arranged between the bundle tube 31 and the tightly-packaged optical fiber 2, in the actual production process, the tightly-packaged optical fiber 2 can pass through an ointment coating machine to form a layer of uniform ointment on the surface, and then the inner sheath is sleeved on the tight-packaged optical fiber 2, so that the ointment is filled in the bundle tube 31; be provided with water blocking tape 10 between inner sheath 6 and the two-sided plastic-coated steel band 7, water blocking tape 10 includes non-woven fabrics layer 101 and water swelling layer 102, non-woven fabrics layer 101 is provided with two-layerly, water swelling layer 102 sets up between two-layer non-woven fabrics layer 101, non-woven fabrics layer 101 is made by the non-woven fabrics, water swelling layer 102 comprises the powder that blocks water, water blocking tape 10 is by adding between the two-layer non-woven fabrics and blocking the powder complex and forming, in case the optical cable intakes, the powder that blocks water expands rapidly after absorbing water, the volume increases rapidly after the inflation, the gel that produces blocks water and permeates toward the optical cable center, the novel material company Limited of shandonghua is selected for use to the embodiment, the model is the.
Referring to fig. 2, the aramid layer 4 is composed of a plurality of aramid fibers 41, and the aramid fibers 41 are coated outside the bundle pipe layer 3 along the length direction of the tightly-packed optical fiber 2.
Referring to fig. 2, protective layer 5 is indulged band 51 by the aluminium foil and is constituteed, and the aluminium foil is indulged band 51 spiral and is wrapped in the 3 lateral walls of beam tube layer, and the aluminium foil is indulged band 51 parcel in-process, and rotatory next round aluminium foil overlap joint that forms has certain overlap joint width on last round aluminium foil, can make protective layer 5 cover aramid fiber layer 4 completely like this.
Referring to fig. 2, the inner sheath 6 is provided with at least two reinforcing steel wires 61 along the length direction thereof, and the reinforcing steel wires 61 are uniformly distributed along the circumferential direction of the inner sheath 6, and in the embodiment, two parallel reinforcing steel wires 61 are preferably arranged on the inner sheath 6 in a central symmetry manner.
Referring to fig. 2 and 3, be provided with in the oversheath 1 and tear rope 11, tear rope 11 and be located the oversheath 1 and be close to the lateral wall of 8 one sides of metal protective sheath, grasp and tear rope 11, length direction and the outside pulling along oversheath 1, under the effect of tearing rope 11 and power, the side of oversheath 1 is torn and has a tear notch, alright like this with the more convenient oversheath 1 of getting rid of, the material of oversheath 1 is fire-retardant environment-friendly PVC, metal protective sheath 8 is metal collapsible tube 81, metal collapsible tube 81 lateral wall is equipped with spiral recess 811, the ability of buckling that can strengthen the optical cable sets up like this.
Referring to fig. 4, the outer sheath 1 is wrapped around the outer side of the metal protection sleeve 8 in a tight fit manner, a sealing tooth 82 is arranged on one side of the outer sheath 1 close to the metal protection sleeve 8, the sealing tooth 82 is embedded into the groove 811, so that the inner side wall of the outer sheath 1 is tightly fitted with the outer side wall of the metal protection sleeve 8 without a gap, and the surface of one side of the outer sheath 1 away from the metal protection sleeve 8 is flat.
The implementation principle of the embodiment is as follows: when water enters the optical cable, the water blocking tape 10 can absorb water and rapidly increase in volume, so that other gaps are filled to prevent the further penetration of the water, the grease layer 9 is coated, and the moisture in the air can be prevented from corroding the optical fiber, so that the optical cable shows good water blocking performance.
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 (9)
1. An inlet cable for outdoor wiring, includes oversheath (1), its characterized in that: the optical fiber cable is characterized by further comprising tightly-packaged optical fibers (2), wherein a bundle pipe layer (3), an aramid fiber layer (4), a protective layer (5), an inner sheath (6), a double-sided plastic-coated steel belt (7) and a metal protective sleeve (8) are sequentially wrapped outside the tightly-packaged optical fibers (2), the bundle pipe layer (3) comprises a bundle pipe (31), an ointment layer (9) formed by filling ointment is arranged between the bundle pipe (31) and the tightly-packaged optical fibers (2), the tightly-packaged optical fibers (2) comprise bare optical fibers (21) and a tight sheath (22), the tight sheath (22) is wrapped on the peripheral side of the bare optical fibers (21), the metal protective sleeve (8) is sleeved with the tight sheath (1), a water blocking tape (10) is arranged between the inner sheath (6) and the double-sided plastic-coated steel belt (7), the water blocking tape (10) comprises a non-woven fabric layer (101) and a water swelling layer (102), the non-woven fabric layer (101), the water-swellable layer (102) is arranged between two non-woven fabric layers (101).
2. The drop cable of claim 1, wherein: the protective layer (5) is an aluminum foil longitudinal wrapping tape (51), and the aluminum foil longitudinal wrapping tape (51) is spirally wrapped on the outer side wall of the tube bundle layer (3).
3. The drop cable of claim 1, wherein: the metal protection sleeve (8) is a metal hose (81), and a spiral groove (811) is formed in the outer wall of the metal hose (81).
4. The drop cable of claim 1, wherein: the aramid fiber layer (4) is composed of a plurality of aramid fibers (41), and the aramid fibers (41) are coated on the outer side of the tube layer (3) along the length direction of the tightly-packed optical fibers (2).
5. The drop cable of claim 1, wherein: and a reinforcing steel wire (61) is arranged on the inner sheath (6) along the length direction of the inner sheath.
6. The drop cable of claim 5, wherein: the number of the reinforcing steel wires (61) is at least two, and the reinforcing steel wires (61) are uniformly distributed along the circumferential direction of the inner sheath (6).
7. The drop cable of claim 1, wherein: the material of the tight sleeve (22) comprises polyvinyl chloride and polyurethane.
8. The drop cable of claim 1, wherein: a tearing rope (11) is arranged in the outer sheath (1), and the tearing rope (11) is located on the side wall, close to one side of the metal protective sleeve (8), of the outer sheath (1).
9. The drop cable of claim 1, wherein: the outer diameter of the tight sleeve (22) ranges from 0.6mm to 0.9 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920950020.3U CN210090762U (en) | 2019-06-22 | 2019-06-22 | Leading-in cable for outdoor wiring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920950020.3U CN210090762U (en) | 2019-06-22 | 2019-06-22 | Leading-in cable for outdoor wiring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210090762U true CN210090762U (en) | 2020-02-18 |
Family
ID=69483804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920950020.3U Expired - Fee Related CN210090762U (en) | 2019-06-22 | 2019-06-22 | Leading-in cable for outdoor wiring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210090762U (en) |
-
2019
- 2019-06-22 CN CN201920950020.3U patent/CN210090762U/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 |
Granted publication date: 20200218 |