CN202033502U - Indoor optical cable - Google Patents
Indoor optical cable Download PDFInfo
- Publication number
- CN202033502U CN202033502U CN2011201380476U CN201120138047U CN202033502U CN 202033502 U CN202033502 U CN 202033502U CN 2011201380476 U CN2011201380476 U CN 2011201380476U CN 201120138047 U CN201120138047 U CN 201120138047U CN 202033502 U CN202033502 U CN 202033502U
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- Prior art keywords
- cable core
- cable
- optical
- core
- optical cable
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- 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
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Abstract
The utility model relates to an indoor optical cable, which comprises an outer jacket and a cable core, wherein the outer jacket wraps the cable core; the cable core comprises a cable core jacket which is made of low-smoke halogen-free flame-retardant material, and optical fibers and reinforced cores, which are arranged in the cable core jacket and extend along the direction of the optical cable, wherein the cross section of the cable core is in a butterfly shape with two wide ends and a narrow middle part, the optical fibers are arranged on the middle part of the butterfly-shaped cable core, the quantity of the reinforced cores is two, and the two reinforced cores are respectively arranged on two ends of the butterfly-shaped cable core; a dry-type water-blocking material layer wraps the periphery of the cable core, and the periphery of the optical fibers is also provided with an elastic protecting jacket. Due to the adoption of the elastic protecting jacket, the mechanical property of the optical fibers is greatly improved, so the optical fibers can be protected.
Description
Technical field
The utility model relates to FTTH(Fiber To The Home), particularly a kind of duct type optical cable of registering one's residence has been taken into account the characteristics of outdoor optical cable and inside cable.
Background technology
Along with the continuous growth of Fiber to the home (FTTH) continuous advancement in technology and bandwidth demand, how optical fiber being incorporated into user side from the Optical Distribution Point of Access Network has become the hot technology that people pay close attention to.Usually we are called leading in cable with this section optical cable.
Current development trend is unified inside cable and outdoor optical cable, as application number is that 201010157649.6 Chinese patent file discloses a kind of optical cable, as shown in Figure 1, a kind of optical cable leading in house from outdoors, ask in the inside that the position is provided with optical fiber 11, the both sides of optical fiber 11 is respectively equipped with small size glass fibre reinforcement 12, is used for the anti-pressure ability of rubber-insulated wire cable core.Described optical fiber 11 and small size glass fibre reinforcement 12 usefulness fire retardant polyolefins are extruded into one, form the butterfly covered wire cable, and this kind optical cable can lay along wall in that the user is indoor, but can't be as outdoor leading in cable.For this butterfly covered wire cable 13 is extended to outdoor application, be respectively arranged with large size glass fibre reinforcement 14 in described butterfly covered wire cable 13 both sides, described butterfly covered wire cable piece 13 and large size glass fibre reinforcement 14 are coated togather by vertical bag waterstop 15, and described overall budget waterstop 15 outsides are provided with one deck medium density polyethylene (MDPE) sheath 16.
Above-mentioned optical cable, its optical fiber, strengthening core (above-mentioned small size glass fibre reinforcement 12) and LZSH(halogen-free low-smoke flame retardant material) cable core sheath (described be extruded into integrally formed butterfly covered wire cable with fire retardant polyolefin) is one-body molded, optical fiber directly contacts with LZSH cable core sheath, because the mechanical property of optical fiber is limited, huge deformation may damage optical fiber.
The utility model content
The purpose of this utility model provides a kind of optical cable of registering one's residence, and in order to solve in the prior art, cable configuration lacks the problem of protection to optical fiber.
For achieving the above object, scheme of the present utility model is: a kind of optical cable of registering one's residence, comprise oversheath and cable core, and described oversheath wraps up described cable core; Described cable core comprises the cable core sheath made by halogen-free low-smoke flame retardant material and optical fiber and strengthening core interior, that stretch along the optical cable direction, described cable core cross-section is wide, the middle narrow butterfly in two ends, described optical fiber is arranged on butterfly cable core middle part, described strengthening core has two, is separately positioned on butterfly cable core two ends; Described cable core periphery is coated with dry type material water-proof material layer, and described optical fiber periphery also is provided with the resilient protection cover.
The resilient protection cover has increased the mechanical property of optical fiber greatly, and optical fiber has been played protective effect.
Further, described resilient protection cover is extruded or is applied by polyurethane or silicones and forms.
Further, described strengthening core is fiberglass reinforcement or aramid fiber fortifying fibre reinforcement material.
Further, the space between described dry type material water-proof material layer complete filling cable core and the oversheath.Described dry type material water-proof material layer is glass fiber yarn and the water blocking yarn that is coated on the cable core periphery.Adopt the dry type material water-proof material, avoided using the hidden danger of the optical cable unbalanced stress that the oil that blocks water brings and since dry type material water-proof material layer complete filling the space between cable core and the oversheath, than only using one deck material water-proof material to play better vertically block-water effect.
Further, also be provided with between oversheath and the cable core along what the optical cable bearing of trend stretched and tear rope.Generally tearing rope and being provided with two, optical cable opens stripping during convenient construction.
Further, described oversheath is formed by the aluminium-plastic tape armor and the outer field polyethylene layer bonding of internal layer.Oversheath plays and radially blocks water and measuring body effect.
Description of drawings
Fig. 1 is the cable configuration of registering one's residence of prior art;
Fig. 2 is the cable configuration of registering one's residence of the present utility model.
Embodiment
The utility model is described in more detail below in conjunction with accompanying drawing.
A kind of optical cable of registering one's residence as shown in Figure 1 comprises oversheath 6 and cable core, the described cable core of oversheath 6 parcels; Cable core comprises the halogen-free low-smoke flame retardant material by LZSH() the cable core sheath 4 made and interior, vertical (along the optical cable direction) optical fiber 1 and strengthening core 3 of stretching thereof, cable core cross-section is wide, the middle narrow butterfly in two ends, optical fiber 1 is arranged on butterfly cable core middle part, strengthening core 3 has two, is separately positioned on butterfly cable core two ends; The cable core periphery is coated with dry type material water-proof material layer 5, and the flexible protective sleeve 2 of optical fiber 1 outer periphery, this resilient protection cover 2 are formed by polyurethane that extrudes or apply or silicone material.Described butterfly is the butterfly that intermediate recess and two are circular arc.
Optical fiber 1 adopts insensitive single mode 6.657 optical fiber of bending loss.Be to guarantee the quality of networking, preferred mode field diameter and the more consistent G.657.A optical fiber of index G.652.D.
Resilient protection cover 2 can increase the mechanical property of optical fiber, protection optical fiber.
Strengthening core 3 adopts fiberglass reinforcement (G-FRP) or aramid fiber fortifying fibre (K-FRP) reinforcement material to make.Further improve the bending property of optical cable.The high strength glass fiber performance can match in excellence or beauty with aramid yarn, and price is far below fragrant yarn simultaneously.High strength glass fiber yarn quantity and tensile strength can be laid needs according to construction and be selected.And other similar products adopt steel wire or FRP as strengthening reinforcement, cable core hardness height, bending property difference and can not select to determine the tensile strength of optical cable according to actual needs.
Different with background technology, present embodiment only has strengthening core 3 in cable core.
This optical cable can indoor and outdoor uses, and for guaranteeing optical fiber long-term serviceable life, optical cable should have waterproof, humidity resistance.For reducing optical cable, save the engineering construction cost by the intermediate transit link after in the outdoor inlet chamber; Avoid ointment that ointment in the vertical wirings causes owing to action of gravity to sink to causing optical fiber in the optical cable to increase the hidden danger of external carbuncle to the bottom; So cable core is provided with the dry type material water-proof material layer 5 that the dry type material water-proof material constitutes outward, material selects to block water high strength glass fiber yarn and water blocking yarn, space between dry type material water-proof material layer 5 complete filling cable core and the oversheath 6 is equivalent to ointment filling total cross-section and blocks water, and satisfies the vertical block-water performance of optical cable.
Oversheath 6 is formed by the aluminium-plastic tape armor and the outer field polyethylene layer bonding of internal layer.Oversheath 6 plays and radially blocks water and measuring body effect.
As other embodiment, also be provided with the longitudinally extending rope 7 of tearing between oversheath 6 and the cable core.Generally tear rope and 7 be provided with two, be separately positioned on the both sides of butterfly cable core depression, the stripping of opening of optical cable when tearing rope 7 convenient constructions is installed.
Claims (7)
1. the optical cable of registering one's residence comprises oversheath and cable core, and described oversheath wraps up described cable core; Described cable core comprises the cable core sheath made by halogen-free low-smoke flame retardant material and optical fiber and strengthening core interior, that stretch along the optical cable direction, described cable core cross-section is wide, the middle narrow butterfly in two ends, described optical fiber is arranged on butterfly cable core middle part, described strengthening core has two, is separately positioned on butterfly cable core two ends; Described cable core periphery is coated with dry type material water-proof material layer, it is characterized in that, described optical fiber periphery also is provided with the resilient protection cover.
2. a kind of optical cable of registering one's residence according to claim 1 is characterized in that, described resilient protection cover is extruded or applied by polyurethane or silicones and forms.
3. a kind of optical cable of registering one's residence according to claim 1 is characterized in that, described strengthening core is fiberglass reinforcement or aramid fiber fortifying fibre reinforcement material.
4. a kind of optical cable of registering one's residence according to claim 1 is characterized in that, the space between described dry type material water-proof material layer complete filling cable core and the oversheath.
5. a kind of optical cable of registering one's residence according to claim 1 is characterized in that, described dry type material water-proof material layer is glass fiber yarn and the water blocking yarn that is coated on the cable core periphery.
6. a kind of optical cable of registering one's residence according to claim 1 is characterized in that, also is provided with the rope of tearing along the stretching, extension of optical cable bearing of trend between oversheath and the cable core.
7. a kind of optical cable of registering one's residence according to claim 1 is characterized in that, described oversheath is formed by the aluminium-plastic tape armor and the outer field polyethylene layer bonding of internal layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201380476U CN202033502U (en) | 2011-05-04 | 2011-05-04 | Indoor optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201380476U CN202033502U (en) | 2011-05-04 | 2011-05-04 | Indoor optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202033502U true CN202033502U (en) | 2011-11-09 |
Family
ID=44895795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201380476U Expired - Fee Related CN202033502U (en) | 2011-05-04 | 2011-05-04 | Indoor optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202033502U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103383486A (en) * | 2013-08-07 | 2013-11-06 | 江苏中天科技股份有限公司 | Armored pipeline butterfly optical cable and production method thereof |
| CN103676047A (en) * | 2013-11-22 | 2014-03-26 | 河南省通信电缆有限公司 | Self-bearing-type rubber-covered wire jump fiber and self-bearing-type rubber-covered wire optical cable thereof |
| CN104730669A (en) * | 2015-04-23 | 2015-06-24 | 龚利芬 | Butterfly-shaped access optical cable and method for manufacturing same |
| CN114296195A (en) * | 2021-12-30 | 2022-04-08 | 江苏俊知光电通信有限公司 | Low-friction butterfly-shaped optical cable and preparation method thereof |
-
2011
- 2011-05-04 CN CN2011201380476U patent/CN202033502U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103383486A (en) * | 2013-08-07 | 2013-11-06 | 江苏中天科技股份有限公司 | Armored pipeline butterfly optical cable and production method thereof |
| CN103676047A (en) * | 2013-11-22 | 2014-03-26 | 河南省通信电缆有限公司 | Self-bearing-type rubber-covered wire jump fiber and self-bearing-type rubber-covered wire optical cable thereof |
| CN104730669A (en) * | 2015-04-23 | 2015-06-24 | 龚利芬 | Butterfly-shaped access optical cable and method for manufacturing same |
| CN107121746A (en) * | 2015-04-23 | 2017-09-01 | 龚利芬 | A kind of butterfly leading in cable and preparation method |
| CN104730669B (en) * | 2015-04-23 | 2017-11-07 | 杭州七友通信科技有限公司 | Butterfly leading in cable and preparation method |
| CN107121746B (en) * | 2015-04-23 | 2019-04-05 | 苏州胜信光电科技有限公司 | A kind of butterfly leading in cable and production method |
| CN114296195A (en) * | 2021-12-30 | 2022-04-08 | 江苏俊知光电通信有限公司 | Low-friction butterfly-shaped optical cable and preparation method thereof |
| CN114296195B (en) * | 2021-12-30 | 2024-03-08 | 江苏俊知光电通信有限公司 | Low-friction butterfly-shaped optical cable and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20111109 Termination date: 20170504 |