CN101943782A - Easily stripped optical cable - Google Patents

Easily stripped optical cable Download PDF

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Publication number
CN101943782A
CN101943782A CN 201010278310 CN201010278310A CN101943782A CN 101943782 A CN101943782 A CN 101943782A CN 201010278310 CN201010278310 CN 201010278310 CN 201010278310 A CN201010278310 A CN 201010278310A CN 101943782 A CN101943782 A CN 101943782A
Authority
CN
China
Prior art keywords
fiber optic
inner sheath
optic cables
oversheath
easy stripping
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.)
Pending
Application number
CN 201010278310
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Chinese (zh)
Inventor
梁振宇
魏杰
沈翊德
苏竹青
郭益聪
刘付兆欢
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHENZHEN SDGI OPTICAL NETWORK TECHNOLOGIES CO LTD
Original Assignee
SHENZHEN SDGI OPTICAL NETWORK TECHNOLOGIES CO LTD
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SHENZHEN SDGI OPTICAL NETWORK TECHNOLOGIES CO LTD filed Critical SHENZHEN SDGI OPTICAL NETWORK TECHNOLOGIES CO LTD
Priority to CN 201010278310 priority Critical patent/CN101943782A/en
Publication of CN101943782A publication Critical patent/CN101943782A/en
Pending legal-status Critical Current

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Abstract

The invention discloses an easily stripped optical cable. The optical cable comprises an internal sheath, an external sheath and an optical transmission unit, wherein the external sheath is sleeved at the periphery of the internal sleeve; the optical transmission unit is arranged in the hollow part of the internal sheath; and tear slots along the extending direction of the optical cable are reserved on the external walls of the internal sheath and the external sheath respectively. The optical cable has the advantages that: because the tear slots are reserved on the external walls of the internal sheath and the external sheath respectively, skylight opening operation on the optical cable and use and maintenance of the optical cable are convenient; and the safety of the optical cable is good at the same time.

Description

A kind of easy stripping fiber optic cables
Technical field
The present invention relates to optical cable, particularly a kind of easy stripping fiber optic cables.
Background technology
Advance copper at light and move back under the background with energy-saving and emission-reduction, in 3G network and the construction that Fiber to the home (FTTX), will all adopt optical cable to substitute copper cabling and enter building.In the Optical Access Network network, the use amount of optical cable is increasing, and is more and more higher to the requirement of its ease of use, security performance, adaptive capacity to environment.
In Optical Access Network network practical application scene, the operation (claiming fine down the operation again midway) that an access optical cable need be put in a skylight midway, original cable configuration has following drawback in design:
1, the stripping and the operation that puts in a skylight are opened in optical cable inconvenience midway;
2, make troubles to construction, cause the engineering time long, increased difficulty of construction and expense;
3, make troubles to maintenance, cause maintenance time long, increased maintenance difficulties and expense.
Summary of the invention
In order to solve existing technical matters, the invention provides a kind of easy stripping fiber optic cables, thereby it is easy to out the operation that puts in a skylight that optical fiber is convenient in stripping midway, be beneficial to construction and maintenance.
The present invention solves existing technical matters, and a kind of easy stripping fiber optic cables is provided, the optical transmission unit that it comprises inner sheath, is sheathed on the oversheath of described inner sheath periphery and is arranged at described inner sheath hollow bulb; At the outer wall setting of described inner sheath and described oversheath tearing groove along described optical cable bearing of trend.
The present invention further improves as described below.
Described tearing groove is to be provided with in pairs, and described oversheath comprises two tearing grooves, and described inner sheath comprises two tearing grooves.
The cross section of described tearing groove is U-shaped or V-arrangement.
Be arranged in parallel with described tearing groove and to tear rope, the described rope of tearing is embedded in the wall of described oversheath.
The concaveconvex structure that cooperatively interacts is set between described inner sheath and the described oversheath.
Wall thickness at described inner sheath is embedded interior reinforcement.
Wear central reinforce member at described hollow bulb.
Between described inner sheath and described oversheath, water blocking layer is set.
Described water blocking layer is waterstop or aluminium strip.
Described optical transmission unit is 250 μ m optical fiber, tight cover fibre, fibre ribbon or mini optical fibre beam tube.
Compared to prior art, the invention has the beneficial effects as follows: the outer wall at interior oversheath is provided with tearing groove, make this optical cable conveniently carry out optical cable put in a skylight operation, be beneficial to operation and maintenance, the security performance of this optical cable is good simultaneously.
Description of drawings
Fig. 1 is the structure structural representation of the easy stripping fiber optic cables of the present invention.
Embodiment
The present invention is further described below in conjunction with description of drawings and embodiment.
As shown in Figure 1, a kind of easy stripping fiber optic cables, the optical transmission unit 25 that it comprises inner sheath 23, is sheathed on the oversheath 22 of inner sheath 23 peripheries and is arranged at inner sheath 23 hollow bulbs; At the outer wall setting of inner sheath 23 and oversheath 22 tearing groove 26 along the optical cable bearing of trend.Be provided with after this tearing groove 26, this optical cable cuts a week on oversheath 22 with cutter earlier when putting in a skylight operation, utilize tearing groove 26 laborsaving strip off oversheaths 22 then, then scratch inner sheath 23 with cutter again, further utilize one section inner sheath 23 of tearing groove 26 laborsaving strip ofves, thereby expose the optical transmission unit 25 of inner sheath 23 inside.
In the present invention, tearing groove 26 is to be provided with in pairs, and promptly oversheath 22 comprises two tearing grooves 26, and inner sheath 23 comprises two tearing grooves 26.When opening stripping oversheath 22 or inner sheath 23, tear material between two tearing grooves 26 by two tearing grooves 26, thereby expose the material of being torn the material the inside.The cross section of this tearing groove 26 is U-shaped or V-arrangement.
In the present invention, be arranged in parallel with tearing groove 26 and to tear rope 27, tear rope and 27 be embedded in the wall of oversheath 22.This is torn rope and 27 is embedded in the oversheath 22, makes things convenient for peeling off of oversheath 22, when peeling off oversheath 22, will tear rope 27 earlier and expose, and forces in this then and tears rope 27 and draw back oversheath 22, exposes inner sheath 23.
In the present invention, inner sheath and oversheath are two donuts, or two eccentric annulus, and the thickness of eccentric annulus is mended mutually; Or the concaveconvex structure that setting cooperatively interacts between inner sheath 23 and the oversheath 22; be that oversheath 22 is provided with groove vertically; inner sheath 23 is provided with the tongue that matches with this groove; since the engagement limits of concaveconvex structure inner sheath 23 relative to radially the rotating of oversheath 22, protected the position of inner sheath 23 relative oversheaths 22.Should in oversheath 22 have the material of equal flame-proof environmental protection effectiveness for halogen-free low-smoke flame retardant material or other, for example fire-retardant polyethylene material is called for short the PE material.
The optical transmission unit 25 that the present invention is suitable for is 250 μ m optical fiber, tight cover fibre, fibre ribbon or mini optical fibre beam tube, and 250 μ m optical fiber, tight cover fiber type fine, fibre ribbon comprise all band single-mode fiber (hereinafter to be referred as single-mode fiber), the anti-curved single-mode fiber of all band (hereinafter to be referred as anti-curved single-mode fiber), 62.5/125 μ m multimode optical fiber, 50/125 μ m multimode optical fiber and 50/125 μ m laser and optimize (Laser Optimized) multimode optical fiber (abbreviation L50 multimode optical fiber); Single-mode fiber, anti-curved single-mode fiber are applicable to the optical transmission line that is made of the whole transmission wavelength scopes of 1260nm to 1625nm; All kinds of multimode optical fibers are applicable to the optical transmission line that constitutes with 850nm, 1310nm transmission wavelength.
In the present invention, in order to improve the intensity of optical cable, preferred reinforcement 21 in the wall thickness of inner sheath 23 is embedded, reinforcement 21 is centrosymmetric and is arranged at inner sheath 23 in this, wears central reinforce member, between inner sheath 23 and oversheath 22 water blocking layer 24 is set at hollow bulb simultaneously.Should in reinforcement 21 and central reinforce member be that phosphatization steel wire or other have the material that optical cable strengthens effectiveness, water blocking layer 24 can be waterstop or aluminium strip.
Optical cable of the present invention not only conveniently carries out the operation that puts in a skylight of optical cable, easy to use and maintenance, and security performance is good, simple for structure, compact to design, intensity is high, cost is low.The environmental performance of optical cable of the present invention is superior, and the structural design of optimization has also reduced cost, makes easy stripping fiber optic cables rational in infrastructure, easy to use, has reduced the use set-up time significantly, is a kind of a kind of easy stripping fiber optic cables that is applicable to access network fully.
Realize the requirement of wiring and separated time by the optical cable operation that puts in a skylight.Easily stripping fiber optic cables be easy to out stripping and installation, easy to use, shorten the engineering time, save executive cost.Be be applied to optical cable in the access network midway down fine separated time, be convenient to allocate, satisfy that volume is little, security performance good and a kind of easy stripping fiber optic cables of requirement such as easy to use.
Above content be in conjunction with concrete preferred implementation to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.

Claims (10)

1. easy stripping fiber optic cables, the optical transmission unit that it comprises inner sheath, is sheathed on the oversheath of described inner sheath periphery and is arranged at described inner sheath hollow bulb; It is characterized in that: at the outer wall setting of described inner sheath and described oversheath tearing groove along described optical cable bearing of trend.
2. easy stripping fiber optic cables according to claim 1 is characterized in that: described tearing groove is for being provided with in pairs, and described oversheath comprises two tearing grooves, and described inner sheath comprises two tearing grooves.
3. easy stripping fiber optic cables according to claim 2 is characterized in that: the cross section of described tearing groove is U-shaped or V-arrangement.
4. easy stripping fiber optic cables according to claim 3 is characterized in that: be arranged in parallel with described tearing groove and tear rope, the described rope of tearing is embedded in the wall of described oversheath.
5. according to any described easy stripping fiber optic cables of claim 1 to 4, it is characterized in that: the concaveconvex structure that cooperatively interacts is set between described inner sheath and the described oversheath.
6. easy stripping fiber optic cables according to claim 5 is characterized in that: the wall thickness at described inner sheath is embedded interior reinforcement.
7. easy stripping fiber optic cables according to claim 6 is characterized in that: wear central reinforce member at described hollow bulb.
8. according to any described easy stripping fiber optic cables of claim 1 to 4, it is characterized in that: between described inner sheath and described oversheath, water blocking layer is set.
9. easy stripping fiber optic cables according to claim 8 is characterized in that: described water blocking layer is waterstop or aluminium strip.
10. according to any described easy stripping fiber optic cables of claim 1 to 4, it is characterized in that: described optical transmission unit is 250 μ m optical fiber, tight cover fibre, fibre ribbon or mini optical fibre beam tube.
CN 201010278310 2010-09-10 2010-09-10 Easily stripped optical cable Pending CN101943782A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201010278310 CN101943782A (en) 2010-09-10 2010-09-10 Easily stripped optical cable

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Application Number Priority Date Filing Date Title
CN 201010278310 CN101943782A (en) 2010-09-10 2010-09-10 Easily stripped optical cable

Publications (1)

Publication Number Publication Date
CN101943782A true CN101943782A (en) 2011-01-12

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104360449A (en) * 2014-12-05 2015-02-18 国家电网公司 ADSS for electric power communication
CN104898225A (en) * 2015-05-29 2015-09-09 成都亨通光通信有限公司 Optical cable structure enabling convenience in optical fiber protection in cable stripping process
WO2018223499A1 (en) * 2017-06-09 2018-12-13 南京华信藤仓光通信有限公司 Optical fibre cable with optical fibre sensing and communication functions, and manufacturing method therefor
CN109313316A (en) * 2016-08-04 2019-02-05 株式会社藤仓 Connectorized fiber optic cabling

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100365458C (en) * 2002-10-31 2008-01-30 康宁光缆系统有限公司 Peelable buffer layer having a preferential tear portion and methods of manufacturing the same
WO2009110177A1 (en) * 2008-03-07 2009-09-11 Fujikura Ltd. Optical fiber cable and method of mid-span access thereof
CN201413422Y (en) * 2009-06-11 2010-02-24 深圳市特发信息光网科技股份有限公司 Indoor pre-connected cable

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100365458C (en) * 2002-10-31 2008-01-30 康宁光缆系统有限公司 Peelable buffer layer having a preferential tear portion and methods of manufacturing the same
WO2009110177A1 (en) * 2008-03-07 2009-09-11 Fujikura Ltd. Optical fiber cable and method of mid-span access thereof
CN201413422Y (en) * 2009-06-11 2010-02-24 深圳市特发信息光网科技股份有限公司 Indoor pre-connected cable

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104360449A (en) * 2014-12-05 2015-02-18 国家电网公司 ADSS for electric power communication
CN104898225A (en) * 2015-05-29 2015-09-09 成都亨通光通信有限公司 Optical cable structure enabling convenience in optical fiber protection in cable stripping process
CN109313316A (en) * 2016-08-04 2019-02-05 株式会社藤仓 Connectorized fiber optic cabling
US11002928B2 (en) 2016-08-04 2021-05-11 Fujikura Ltd. Optical fiber cable
WO2018223499A1 (en) * 2017-06-09 2018-12-13 南京华信藤仓光通信有限公司 Optical fibre cable with optical fibre sensing and communication functions, and manufacturing method therefor
US10838160B2 (en) 2017-06-09 2020-11-17 Nanjing Wasin Fujikura Optical Communication Ltd. Optical fiber cable with optical fiber sensing and communication functions and manufacturing method

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Application publication date: 20110112