CN103513378B - The double figure of eight communications optical cables of light-duty half dry type - Google Patents
The double figure of eight communications optical cables of light-duty half dry type Download PDFInfo
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- CN103513378B CN103513378B CN201310482732.4A CN201310482732A CN103513378B CN 103513378 B CN103513378 B CN 103513378B CN 201310482732 A CN201310482732 A CN 201310482732A CN 103513378 B CN103513378 B CN 103513378B
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Abstract
The invention discloses a kind of double figure of eight communications optical cables of light-duty half dry type, including reinforcer unit, the first fiber unit, the second fiber unit and connect band, the cross section of first fiber unit, second fiber unit and the reinforcer unit is circle, first fiber unit and second fiber unit connect the reinforcer unit by the connect band, first fiber unit, second fiber unit and the reinforcer unit is constituted double 8-shaped.The double figure of eight communications optical cables of light-duty half dry type of the invention make full use of the confined space of cable run, increase optical cable construction quantity in cable run, can increase cable run inner fiber density, improve information carrying capacity.
Description
Technical field
The present invention relates to optical cable technology field, specifically, it is related to a kind of double figure of eight communications optical cables of light-duty half dry type.
Background technology
At the operators communication line construction initial stage, because business sheet one, construction fund is limited in addition, when cable run is built
Only consider base station transmission cable construction demand.Currently as portfolio constantly rises, service request is improved constantly, between base station
Distance has tapered to hundreds of meters by several kilometers, and the optical cable for connecting base station is more and more, it is necessary to more cable run resource supports
Transmission network is built.In recent years, government and enterprise are being skyrocketed through to the demand of data service, and data service turns into each operation
The focus of business's contention, actively marches field of data service one after another so that existing cable run resource is had too many difficulties to cope with.With transmission
Network constantly expands and extends, to network management the need for it is also increasingly thinner, core layer has been gradually formed in LAN, has been converged
Layer and Access Layer hierarchical administrative model, the network of different levels needs to lay different optical cables so that part Important Sections, enter
Go out the shortage of the cable runs such as important node.In addition, continuous expansion, old town transformation, Xincheng District development ＆ construction with city etc.,
Mobile service coverage constantly expands, and existing cable run the number networks and coverage rate are also inadequate.
Based on above-mentioned situation, it is desirable to more fiber units can be placed in existing cable run.But, spreading
If cable run in, because space is limited in cable run, then place the optical cable of existing structure can be highly difficult.Therefore, it is existing
The structure of communications optical cable is caused in the place that conduit resource is nervous, information carrying capacity needs are big, due to the optical cable number in pipeline
Amount is limited, and its information carrying capacity does not reach requirement.
The content of the invention
The technical problems to be solved by the invention are in the cable run laid, because there being space in cable run
Limit, then place the optical cable of existing structure can be highly difficult.
Technical scheme is as follows：
A kind of double figure of eight communications optical cables of light-duty half dry type, including reinforcer unit, the first fiber unit, the second optical fiber
Unit and connect band, the cross section of first fiber unit, second fiber unit and the reinforcer unit is circle,
First fiber unit and second fiber unit connect the reinforcer unit by the connect band, make described first
Fiber unit, second fiber unit and the reinforcer unit constitute double 8-shaped.
Further：The line at the center of the center of first fiber unit and the reinforcer unit and second light
The angle that the line at the center of the center of fine unit and the reinforcer unit is formed is 90 °~120 °.
Further：The thickness of the connect band is 1.8mm~2.0mm, and the length of the connect band is 2.8mm~3.2mm.
Further：The reinforcer unit includes that metal reinforcement and the metal being wrapped in outside the metal reinforcement are strengthened
Part sheath.
Further：The external diameter of the metal reinforcement sheath is 2.1mm~2.3mm, the thickness of the metal reinforcement sheath
It is 1.3mm~1.5mm to spend.
Further：First fiber unit and second fiber unit include respectively multifiber, be wrapped in it is described
Loose tube outside optical fiber and multiple for wrapping up block water bundle yarn layer, the plastic-aluminum that set gradually from inside to outside of multiple Loose tubes
Crossed belt layer and outer jacket.
Further：First fiber unit and second fiber unit also include the resistance being filled in the Loose tube
Water ointment.
Further：The Loose tube include center Loose tube and be centered around the center Loose tube it is peripheral and with the center
The parallel surrounding's Loose tube of Loose tube.
Further：First fiber unit and second fiber unit also include being centered around outside the center Loose tube
The water resistance aramid fiber for enclosing, the water resistance aramid fiber is parallel with the center Loose tube and positioned at the center Loose tube and surrounding pine
In the gap of sleeve pipe.
Further：The external diameter of the center Loose tube is 1.58mm~1.64mm, and the wall thickness of the center Loose tube is
0.37mm~0.40mm；The external diameter of the surrounding Loose tube is 1.48mm~1.54mm, and the wall thickness of the surrounding Loose tube is
0.27mm~0.30mm；The external diameter of the outer jacket is 7.2mm~7.6mm, and the wall thickness of the outer jacket is 1.1mm~1.3mm.
Technique effect of the invention is as follows：
1st, the double figure of eight communications optical cables of light-duty half dry type of the invention make full use of the confined space of cable run, increase
Optical cable construction quantity in cable run.
2nd, the light unit center of the double figure of eight communications optical cables of light-duty half dry type of the invention eliminates reinforcer, its center
To be enclosed with the Loose tube of optical fiber, cable run inner fiber density can be increased, improve information carrying capacity.
3rd, the double figure of eight communications optical cables of light-duty half dry type of the invention use the external mode of reinforcer unit, a reinforcement
Part unit is used for two fiber units, can mitigate optical cable weight, and two optical cables of constructing simultaneously.
4th, being enclosed with outside the Loose tube of optical fiber for the double figure of eight communications optical cables of light-duty half dry type of the invention is hindered using solid-state
Water thing, it is to avoid ointment pollution scene, is easy to construction.
5th, the Loose tube of the double figure of eight communications optical cables of light-duty half dry type of the invention is by the way of directly putting, it is to avoid pine
The stranded influence to optical fiber index of sleeve pipe.
6th, the double figure of eight communications optical cables of light-duty half dry type of the invention use polyurethane outer jacket, reduce fiber unit
With the frictional force of cable run, it is easy to construction.
7th, the double figure of eight communications optical cables of light-duty half dry type of the invention are applied to cable run shortage of resources and information capacity
The larger region of demand, such as cell, office building track remodelling etc..
Brief description of the drawings
Fig. 1 is that the cross section structure of a preferred embodiment of the double figure of eight communications optical cables of light-duty half dry type of the invention is illustrated
Figure；
Fig. 2 is the structural representation of the cable run for loading the double figure of eight communications optical cables of light-duty half dry type of the invention.
Specific embodiment
As depicted in figs. 1 and 2, the one of the double figure of eight communications optical cables of light-duty half dry type respectively of the invention is preferable to carry out
The structure of the cable run of the double figure of eight communications optical cables of cross section structure schematic diagram and the light-duty half dry type of loading of the invention of example is shown
It is intended to.The double figure of eight communications optical cables 201 of the light-duty half dry type include reinforcer unit 103, the first fiber unit 101, the second light
Fine unit 102 and connect band 8.The cross section of the first fiber unit 101, the second fiber unit 102 and reinforcer unit 103 is circle
Shape.First fiber unit 101 and the second fiber unit 102 make the first optical fiber list by the connection reinforcement part unit 103 of connect band 8
First 101, second fiber unit 102 and reinforcer unit 103 constitute double 8-shaped, i.e. the first fiber unit 101 and reinforcer units
103 constitute a shape for numeral " 8 ", and the second fiber unit 102 and reinforcer unit 103 constitute the shape of another digital " 8 "
Shape, so as to have stevedore knot structure.The thickness of the connect band 8 is 1.8mm~2.0mm, the length of connect band 8 for 2.8mm~
3.2mm。
The structure of the double figure of eight communications optical cables of the light-duty half dry type is stevedore knot structure, and two fiber units share one and add
Strong part unit, eliminates multiple reinforcer units, and the space for taking two fiber units reduces, and is conveniently placed at existing light
Cable pipeline（Other optical cables are placed）Interior space, so as to increase the density of optic fibre in cable run, improves information carrying capacity.
Further, since reinforcer unit weight is big, the structure of communications optical cable of the invention causes that the quality of communications optical cable mitigates, the present invention
Communications optical cable be a kind of lightweight cable.
In the line and the second fiber unit 102 at the center of the first fiber unit 101 and the center of reinforcer unit 103
The angle that the line at the center of the heart and reinforcer unit 103 is formed need to combine in cable run 202 placed it is each other
The external diameter and optical cable 203 of optical cable 203 are calculated with the gap of cable run 202.Placement in the angle and cable run 202
The external diameter of other optical cables 203 be directly proportional, with other optical cables 203 placed and cable run 202 in cable run 202
Gap is inversely proportional, and will otherwise cause the communications optical cable of the invention 201 cannot be normally through the limited sky in cable run 202
Between.Because the external diameter of optical cable 203 is smaller, the gap between optical cable 203 and cable run 202 is bigger, and optical cable of the invention is placed
In the gap location, the line and the second fiber unit at the center of the first fiber unit 101 and the center of reinforcer unit 103
The angle that the line at 102 center and the center of reinforcer unit 103 is formed just can be with smaller；Similarly, in cable run 202
Other optical cables 203 placed are bigger with the gap of cable run 202, when optical cable of the invention is placed on the gap location, first
Center and the reinforcer list of the line and the second fiber unit 102 at the center of fiber unit 101 and the center of reinforcer unit 103
The angle that the line at the center of unit 103 is formed can reduce.Preferably, the center of the first fiber unit 101 and reinforcer unit
The angle that the line at the line at 103 center and the center at the center and reinforcer unit 103 of the second fiber unit 102 is formed is
90 °~120 °.
The reinforcer unit 103 of the double figure of eight communications optical cables 201 of light-duty half dry type of the invention includes metal reinforcement 10
With the metal reinforcement sheath 9 being wrapped in outside metal reinforcement 10.Reinforcer unit 103 plays a part of tension.Preferably, gold
The external diameter of category reinforcer sheath 9 is 2.1mm~2.3mm, and the thickness of metal reinforcement sheath 9 is 1.3mm~1.5mm, and metal adds
The material of strong part sheath 9 is polyurethane.
First fiber unit 101 and the second fiber unit of the double figure of eight communications optical cables 201 of light-duty half dry type of the invention
102 include respectively multifiber 1, the Loose tube that is wrapped in outside optical fiber 1 and for wrap up multiple Loose tubes from inside to outside successively
Block water bundle yarn layer 4, plastic-aluminum combined belt 5 and the outer jacket 6 for setting.The multifiber 1 is general single mode fiber.Loose tube
It is placed on using the straight mode of putting and is blocked water in bundle yarn layer 4.Block water the bundle binding Loose tube of yarn layer 4, and water-swellable realizes the effect that blocks water
Really.Plastic-aluminum combined belt 5 has measuring body effect, and can be as longitudinal water-blocking element.The material of outer jacket 6 is preferably and is
Polyurethane.
Preferably, the first fiber unit 101 and the second fiber unit 102 also include the greasy for preventing water being filled in Loose tube
2.The greasy for preventing water 2 is the preferable ointment of water absorbing properties.Due to being filled with the greasy for preventing water 2, light-duty half dry type of the invention is double
Figure of eight communications optical cable 201 is semi-dry optical cable for communication.
Preferably, the Loose tube include center Loose tube 32 and be centered around center Loose tube 32 it is peripheral and with center Loose tube
32 parallel surrounding's Loose tubes 31.
Preferably, the first fiber unit 101 and the second fiber unit 102 also include being centered around the periphery of center Loose tube 32
Water resistance aramid fiber 7.Water resistance aramid fiber 7 is parallel with center Loose tube 32 and positioned at center Loose tube 32 and the gap of surrounding Loose tube 31
It is interior.The quantity of the water resistance aramid fiber 7 in the preferred embodiment is two strands, and line density is 1670dtex.The quantity of water resistance aramid fiber 7 is not
As limit, its quantity can be from cost-effective and reach the effect that blocks water and consider.Further, it is also possible to set again and center
The stranded water resistance aramid fiber of Loose tube 32, the quantity of the water resistance aramid fiber is preferably two strands.The water resistance aramid fiber 7 is soft high-tensile
Spun yarn, it is expansion to meet water, and block-water effect and pliability are good；Furthermore, it is possible to play a part of tension.
In order to ensure implementation of the invention, the size tool of each component there are certain requirements.The external diameter of center Loose tube 32 is
1.58mm~1.64mm, the wall thickness of center Loose tube 32 is 0.37mm~0.40mm.The external diameter of surrounding Loose tube 31 is 1.48mm
~1.54mm, the wall thickness of surrounding Loose tube 32 is 0.27mm~0.30mm.Optical fiber surplus is controlled 0.4~0.8 ‰.If center
When the external diameter of Loose tube 32 and surrounding Loose tube 31 is excessive, between easily causing between center Loose tube 32 and surrounding Loose tube 31
Gap is excessive；When the external diameter of center Loose tube 32 and surrounding Loose tube 31 is too small, center Loose tube 32 and surrounding Loose tube 31 with
Gap between outer jacket is excessive.Above-mentioned situation can cause center Loose tube 32 and surrounding Loose tube 31 to misplace, and receive Loose tube
Crush injury, influences optical transmission performance.The external diameter of outer jacket 6 is 7.2mm~7.6mm, the wall thickness of outer jacket 6 for 1.1mm~
1.3mm.If the wall thickness of outer jacket 6 is too small, being easily caused optical fiber 1 cannot protect, conversely, then influenceing the soft of fiber unit
Toughness, makes the bending resistance of fiber unit not good enough.
Claims (9)
1. double figure of eight communications optical cables of a kind of light-duty half dry type, including reinforcer unit, the first fiber unit, the second optical fiber list
Unit and connect band, it is characterised in that：First fiber unit, second fiber unit and the reinforcer unit it is transversal
Face is circle, and first fiber unit and second fiber unit connect the reinforcer unit by the connect band,
First fiber unit, second fiber unit and the reinforcer unit is set to constitute double 8-shaped；The first optical fiber list
The center of unit and the line at center and the center of second fiber unit and the reinforcer unit of the reinforcer unit
Center line formed angle be directly proportional to the external diameter of other optical cables placed in cable run, in cable run
Other optical cables placed be inversely proportional with the gap of cable run；The center of first fiber unit and the reinforcer list
The angle that the line at center of unit is formed with the line at the center of second fiber unit and the center of the reinforcer unit
It is 90 °~120 °.
2. double figure of eight communications optical cables of light-duty half dry type as claimed in claim 1, it is characterised in that：The thickness of the connect band
It is 1.8mm~2.0mm to spend, and the length of the connect band is 2.8mm~3.2mm.
3. double figure of eight communications optical cables of light-duty half dry type as claimed in claim 1, it is characterised in that：The reinforcer unit
Including metal reinforcement and the metal reinforcement sheath being wrapped in outside the metal reinforcement.
4. double figure of eight communications optical cables of light-duty half dry type as claimed in claim 3, it is characterised in that：The metal reinforcement
The external diameter of sheath is 2.1mm~2.3mm, and the thickness of the metal reinforcement sheath is 1.3mm~1.5mm.
5. double figure of eight communications optical cables of light-duty half dry type as claimed in claim 1, it is characterised in that：The first optical fiber list
First and described second fiber unit includes multifiber, the Loose tube being wrapped in outside the optical fiber and for wrapping up multiple respectively
Block water bundle yarn layer, plastic-aluminum combined belt and the outer jacket that set gradually from inside to outside of the Loose tube.
6. double figure of eight communications optical cables of light-duty half dry type as claimed in claim 5, it is characterised in that：The first optical fiber list
First and described second fiber unit also includes the greasy for preventing water being filled in the Loose tube.
7. double figure of eight communications optical cables of light-duty half dry type as claimed in claim 5, it is characterised in that：The Loose tube includes
Center Loose tube and it is centered around center Loose tube periphery and the surrounding Loose tube parallel with the center Loose tube.
8. double figure of eight communications optical cables of light-duty half dry type as claimed in claim 7, it is characterised in that：The first optical fiber list
First and described second fiber unit also includes being centered around the water resistance aramid fiber of the center Loose tube periphery, the water resistance aramid fiber and institute
State center Loose tube parallel and in the gap of the center Loose tube and the surrounding Loose tube.
9. double figure of eight communications optical cables of light-duty half dry type as claimed in claim 7, it is characterised in that：The center Loose tube
External diameter be 1.58mm~1.64mm, the wall thickness of the center Loose tube is 0.37mm~0.40mm；The surrounding Loose tube
External diameter is 1.48mm~1.54mm, and the wall thickness of the surrounding Loose tube is 0.27mm~0.30mm；The external diameter of the outer jacket is
7.2mm~7.6mm, the wall thickness of the outer jacket is 1.1mm~1.3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310482732.4A CN103513378B (en) | 2013-10-15 | 2013-10-15 | The double figure of eight communications optical cables of light-duty half dry type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310482732.4A CN103513378B (en) | 2013-10-15 | 2013-10-15 | The double figure of eight communications optical cables of light-duty half dry type |
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| CN103513378A CN103513378A (en) | 2014-01-15 |
| CN103513378B true CN103513378B (en) | 2017-06-20 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104330863A (en) * | 2014-11-27 | 2015-02-04 | 北京亨通斯博通讯科技有限公司 | Optical cable for rail transit |
| CN107272133A (en) * | 2017-08-16 | 2017-10-20 | 江苏长飞中利光纤光缆有限公司 | The twin fiber cable that a kind of night can recognize that |
| CN109061822A (en) * | 2018-09-26 | 2018-12-21 | 江苏亨通光电股份有限公司 | A kind of ultra-fine ant proof air-blowing optical cable and preparation method thereof |
| CN111007610A (en) * | 2019-12-19 | 2020-04-14 | 江苏亨通光电股份有限公司 | Flat 8-shaped multi-core MPO optical cable and manufacturing method thereof |
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| EP1881509A2 (en) * | 2006-07-19 | 2008-01-23 | Pomagalski S.A. | Multicore cable with double carrier for a backup line for equipment on pylons and station communication of a teleported transport installation |
| CN203490402U (en) * | 2013-10-15 | 2014-03-19 | 北京亨通斯博通讯科技有限公司 | Light-weight semi-dry type double-8-shaped communication optical cable |
Family Cites Families (4)
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| CN201138383Y (en) * | 2007-11-30 | 2008-10-22 | 青岛汉缆股份有限公司 | 8 font style dry-type waterproof optic cable |
| CN101813811A (en) * | 2010-04-13 | 2010-08-25 | 山东太平洋光缆有限公司 | Compound optical cable for photoelectric-integration access network |
| CN201654298U (en) * | 2010-04-26 | 2010-11-24 | 江苏亨通光电股份有限公司 | Novel self-supporting butterfly-shaped lead-in branched optical cable |
| CN101840044A (en) * | 2010-06-11 | 2010-09-22 | 烽火通信科技股份有限公司 | Novel fiber bundle central tube type optical cable |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1881509A2 (en) * | 2006-07-19 | 2008-01-23 | Pomagalski S.A. | Multicore cable with double carrier for a backup line for equipment on pylons and station communication of a teleported transport installation |
| CN203490402U (en) * | 2013-10-15 | 2014-03-19 | 北京亨通斯博通讯科技有限公司 | Light-weight semi-dry type double-8-shaped communication optical cable |
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