CN103513378A - Light semi dry double-8-shaped communication optical cable - Google Patents
Light semi dry double-8-shaped communication optical cable Download PDFInfo
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- CN103513378A CN103513378A CN201310482732.4A CN201310482732A CN103513378A CN 103513378 A CN103513378 A CN 103513378A CN 201310482732 A CN201310482732 A CN 201310482732A CN 103513378 A CN103513378 A CN 103513378A
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Abstract
The invention discloses a light semi dry double-8-shaped communication optical cable which comprises a strengthening element unit, a first optical fiber unit, a second optical fiber unit and a connecting belt. The cross sections of the first optical fiber unit, the second optical fiber unit and the strengthening element unit are round. The first optical fiber unit and the second optical fiber unit are connected with the strengthening element unit through the connecting belt. The first optical fiber unit, the second optical fiber unit and the strengthening element unit are double-8-shaped. According to the light semi dry double-8-shaped communication optical cable provided by the invention, the limited space of an optical cable pipe is fully used; the number of optical cable construction in the optical cable pipe is increased; the optical fiber density in the optical cable pipe can be increased; and the information transmission capacity is improved.
Description
Technical field
The present invention relates to optical cable technology field, specifically, relate to the two figure of eight communications optical cables of a kind of light-duty half dry type.
Background technology
Operator's communication line first stage of construction, because business is single, construction fund is limited in addition, only considers base-station transmission optical cable construction demand when cable run is built.Current along with portfolio is constantly soaring, service request improves constantly, and the distance between base station has tapered to hundreds of rice by several kilometers, and the optical cable that connects base station is more and more, needs more cable run resource to support transmission network construction.In recent years, Government and enterprise is to the demand of data service in growth at full speed, and data service becomes the focus of each operator's contention, actively marches one after another data service field, and existing cable run resource is had too many difficulties to cope with.Along with transmission network constantly expands and extends, needs to network management are also more and more thinner, core layer, convergence-level and Access Layer hierarchical administrative model in local network, have been formed gradually, the network of different levels need to lay different optical cables, makes the cable run shortage such as part Important Sections, turnover important node.In addition, along with the continuous expansion in city, old town transformation, Xincheng District development & construction etc., mobile service coverage constantly expands, and existing cable run the number networks and coverage rate are also inadequate.
Situation based on above-mentioned, hope can be placed more fiber unit in existing cable run.But, in the cable run of having laid, due to limited space in cable run, then place the optical cable of existing structure can be very difficult.Therefore, the structure of existing communication optical cable makes to need large place at conduit resource anxiety, communication capacity, and due to the optical cable limited amount in pipeline, its communication capacity does not reach requirement.
Summary of the invention
Technical matters to be solved by this invention is in the cable run of having laid, due to limited space in cable run, then place the optical cable of existing structure can be very difficult.
Technical scheme of the present invention is as follows:
The two figure of eight communications optical cables of a kind of light-duty half dry type, comprise reinforcement unit, the first fiber unit, the second fiber unit and connecting band, the xsect of described the first fiber unit, described the second fiber unit and described reinforcement unit is circular, described the first fiber unit is connected described reinforcement unit with described the second fiber unit by described connecting band, makes the two 8-shaped of described the first fiber unit, described the second fiber unit and described reinforcement cell formation.
Further: the angle that the line at the center of the line at center of the center of described the first fiber unit and described reinforcement unit and the center of described the second fiber unit and described reinforcement unit forms is 90 °～120 °.
Further: the thickness of described connecting band is 1.8mm～2.0mm, the length of described connecting band is 2.8mm～3.2mm.
Further: described reinforcement unit comprises metal reinforcement and is wrapped in the metal reinforcement sheath outside described metal reinforcement.
Further: the external diameter of described metal reinforcement sheath is 2.1mm～2.3mm, the thickness of described metal reinforcement sheath is 1.3mm～1.5mm.
Further: described the first fiber unit and described the second fiber unit comprise respectively multifiber, be wrapped in loose sleeve pipe outside described optical fiber and for wrap up a plurality of described loose sleeve pipes set gradually from inside to outside block water and prick layer, plastic-aluminum combined belt and outer jacket.
Further: described the first fiber unit and described the second fiber unit also comprise the greasy for preventing water being filled in described loose sleeve pipe.
Further: described loose sleeve pipe comprises the loose sleeve pipe of surrounding that center pine sleeve pipe is peripheral and parallel with described center pine sleeve pipe with being centered around described center pine sleeve pipe.
Further: described the first fiber unit and described the second fiber unit also comprise the water resistance aramid fiber that is centered around pine sleeve pipe periphery, described center, described water resistance aramid fiber is parallel with described center pine sleeve pipe and be positioned at described center pine sleeve pipe and the described gap of loose sleeve pipe around.
Further: the external diameter of described center pine sleeve pipe is 1.58mm～1.64mm, the wall thickness of described center pine sleeve pipe is 0.37mm～0.40mm; The described external diameter of loose sleeve pipe is around 1.48mm～1.54mm, and the described wall thickness of loose sleeve pipe is around 0.27mm～0.30mm; The external diameter of described outer jacket is 7.2mm～7.6mm, and the wall thickness of described outer jacket is 1.1mm～1.3mm.
Technique effect of the present invention is as follows:
1, the two figure of eight communications optical cables of light-duty half dry type of the present invention make full use of the finite space of cable run, increase optical cable construction quantity in cable run.
2, to have omitted reinforcement ，Qi center be the loose sleeve pipe that is enclosed with optical fiber to the light unit center of the two figure of eight communications optical cables of light-duty half dry type of the present invention, can increase cable run inner fiber density, improved communication capacity.
3, the two figure of eight communications optical cables of light-duty half dry type of the present invention adopt the external mode in reinforcement unit, and a reinforcement unit, for two fiber units, can alleviate optical cable weight, and two optical cables of simultaneously constructing.
4, the solid-state water-blocking material of the outer employing of the loose sleeve pipe that is enclosed with optical fiber of the two figure of eight communications optical cables of light-duty half dry type of the present invention, avoids ointment to pollute on-the-spot, constructability.
5, the loose sleeve pipe of the two figure of eight communications optical cables of light-duty half dry type of the present invention adopts the mode of directly putting, and has avoided the stranded impact on optical fiber index of loose sleeve pipe.
6, the two figure of eight communications optical cables of light-duty half dry type of the present invention are used polyurethane outer jacket, have reduced the friction force of fiber unit and cable run, constructability.
7, the two figure of eight communications optical cables of light-duty half dry type of the present invention are applicable to cable run shortage of resources and information capacity requirements compare great region, such as community, office building track remodelling etc.
Accompanying drawing explanation
Fig. 1 is the cross section structure schematic diagram of a preferred embodiment of the two figure of eight communications optical cables of light-duty half dry type of the present invention;
Fig. 2 is the structural representation of the cable run of the two figure of eight communications optical cables of the light-duty half dry type of loading of the present invention.
Embodiment
As depicted in figs. 1 and 2, be respectively the cross section structure schematic diagram of a preferred embodiment of the two figure of eight communications optical cables of light-duty half dry type of the present invention and the structural representation of the cable run of the two figure of eight communications optical cables of the light-duty half dry type of loading of the present invention.The two figure of eight communications optical cables 201 of this light-duty half dry type comprise reinforcement unit 103, the first fiber unit 101, the second fiber unit 102 and connecting band 8.The xsect of the first fiber unit 101, the second fiber unit 102 and reinforcement unit 103 is circular.The first fiber unit 101 and the second fiber unit 102 are by connecting band 8 connection reinforcement part unit 103, make the first fiber unit 101, the second fiber unit 102 and reinforcement unit 103 form two 8-shaped, the first fiber unit 101 and reinforcement unit 103 form the shape of a numeral " 8 ", the second fiber unit 102 and reinforcement unit 103 form the shape of another numeral " 8 ", thereby have stevedore knot structure.The thickness of this connecting band 8 is 1.8mm～2.0mm, and the length of connecting band 8 is 2.8mm～3.2mm.
The structure of the two figure of eight communications optical cables of this light-duty half dry type is stevedore knot structure, two fiber units share a reinforcement unit, saved a plurality of reinforcements unit, the space that two fiber units are taken reduces, be convenient to be placed on existing cable run (having placed other optical cables) Nei space, thereby the density of optic fibre in increase cable run, improves communication capacity.In addition, because reinforcement unit weight is large, the structure of communications optical cable of the present invention alleviates the quality of communications optical cable, and communications optical cable of the present invention is a kind of lightweight cable.
The angle that the line at the line at the first fiber unit 101 center and 103 center, reinforcement unit and the second fiber unit 102 center and 103 center, reinforcement unit forms need to be calculated with cable run 202 gap in conjunction with external diameter and the optical cable 203 of each other optical cables 203 placed in cable run 202.This angle is directly proportional to the external diameter of other optical cables 203 of having placed in cable run 202, be inversely proportional to cable run 202 gap with other optical cables 203 placed in cable run 202, otherwise will cause communications optical cable 201 of the present invention cannot normally pass the limited space in cable run 202.Because the external diameter of optical cable 203 is less, gap between optical cable 203 and cable run 202 is larger, when optical cable of the present invention is placed on this gap location, the angle that the line at the line at the first fiber unit 101 center and 103 center, reinforcement unit and the second fiber unit 102 center and 103 center, reinforcement unit forms just can be less; In like manner, other optical cables 203 of having placed in cable run 202 are larger with cable run 202 gap, when optical cable of the present invention is placed on this gap location, the angle that the line at the line at the first fiber unit 101 center and 103 center, reinforcement unit and the second fiber unit 102 center and 103 center, reinforcement unit forms can be dwindled.Preferably, the angle that the line at the line at the first fiber unit 101 center and 103 center, reinforcement unit and the second fiber unit 102 center and 103 center, reinforcement unit forms is 90 °～120 °.
The reinforcement unit 103 of the two figure of eight communications optical cables 201 of light-duty half dry type of the present invention comprises metal reinforcement 10 and is wrapped in the metal reinforcement sheath 9 outside metal reinforcement 10.Reinforcement unit 103 plays the effect of tension.Preferably, the external diameter of metal reinforcement sheath 9 is 2.1mm～2.3mm, and the thickness of metal reinforcement sheath 9 is 1.3mm～1.5mm, and the material of metal reinforcement sheath 9 is polyurethane.
The first fiber unit 101 and second fiber unit 102 of the two figure of eight communications optical cables 201 of light-duty half dry type of the present invention comprise respectively multifiber 1, be wrapped in loose sleeve pipe outside optical fiber 1 and for wrap up a plurality of loose sleeve pipes set gradually from inside to outside block water and prick layer 4, plastic-aluminum combined belt 5 and outer jacket 6.This multifiber 1 is general single mode fiber.Pine sleeve pipe adopts the directly mode of putting to be placed in the bundle layer 4 that blocks water.Block water and prick the loose sleeve pipe of layer 4 binding, and water-swellable is realized block-water effect.Plastic-aluminum combined belt 5 has measuring body effect, and can be used as longitudinal water-blocking element.The material of outer jacket 6 is preferably as polyurethane.
Preferably, the first fiber unit 101 and the second fiber unit 102 also comprise the greasy for preventing water 2 being filled in loose sleeve pipe.This greasy for preventing water 2 is the good ointment of water absorbing properties.Owing to having filled this greasy for preventing water 2, the two figure of eight communications optical cables 201 of light-duty half dry type of the present invention are semi-dry optical cable for communication.
Preferably, this pine sleeve pipe comprises center pine sleeve pipe 32 and is centered around the parallel loose sleeve pipe 31 of surrounding of the center pine peripheral Bing Yu of sleeve pipe 32 center pine sleeve pipe 32.
Preferably, the first fiber unit 101 and the second fiber unit 102 also comprise the water resistance aramid fiber 7 that is centered around pine sleeve pipe 32 peripheries, center.Water resistance aramid fiber 7 and center pine sleeve pipe 32 is parallel and be positioned at center pine sleeve pipe 32 and loose sleeve pipe 31 gap around.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 as limit, and its quantity can be from cost-saving and reach the effect blocking water and consider.In addition, the water resistance aramid fiber stranded with center pine sleeve pipe 32 can also be set again, the quantity of this water resistance aramid fiber is preferably two strands.This water resistance aramid fiber 7 is the soft spun yarn of high-tensile, meets water and expands, and block-water effect and pliability are good; In addition can play, the effect of tension.
In order to guarantee enforcement of the present invention, the size tool of each assembly there are certain requirements.The external diameter of center pine sleeve pipe 32 is 1.58mm～1.64mm, and the wall thickness of center pine sleeve pipe 32 is 0.37mm～0.40mm.Around the external diameter of loose sleeve pipe 31 is 1.48mm～1.54mm, and around the wall thickness of loose sleeve pipe 32 is 0.27mm～0.30mm.Optical fiber surplus is controlled at 0.4～0.8 ‰.When if the external diameter of center pine sleeve pipe 32 and around loose sleeve pipe 31 is excessive, easily cause the loose sleeve pipe 32 in center and the excesssive gap between loose sleeve pipe 31 around; When center pine sleeve pipe 32 and the around too small Shi， of external diameter center pine sleeve pipe 32 and the excesssive gap between loose sleeve pipe 31 and outer jacket around of loose sleeve pipe 31.Above-mentioned situation can cause center pine sleeve pipe 32 and around loose sleeve pipe 31 misplace, make the damage that is squeezed of loose sleeve pipe, affect optical transmission performance.The external diameter of outer jacket 6 is 7.2mm～7.6mm, and the wall thickness of outer jacket 6 is 1.1mm～1.3mm.If the wall thickness of outer jacket 6 is too small, easily cause optical fiber 1 can not get protection, otherwise, affect fiber unit suppleness, make the bending resistance of fiber unit not good enough.
Claims (10)
1. two figure of eight communications optical cables of a light-duty half dry type, comprise reinforcement unit, the first fiber unit, the second fiber unit and connecting band, it is characterized in that: the xsect of described the first fiber unit, described the second fiber unit and described reinforcement unit is for circular, described the first fiber unit is connected described reinforcement unit with described the second fiber unit by described connecting band, makes the two 8-shaped of described the first fiber unit, described the second fiber unit and described reinforcement cell formation.
2. the two figure of eight communications optical cables of light-duty half dry type as claimed in claim 1, is characterized in that: the angle that the line at the center of the line at center of the center of described the first fiber unit and described reinforcement unit and the center of described the second fiber unit and described reinforcement unit forms is 90 °～120 °.
3. the two figure of eight communications optical cables of light-duty half dry type as claimed in claim 1, is characterized in that: the thickness of described connecting band is 1.8mm～2.0mm, and the length of described connecting band is 2.8mm～3.2mm.
4. the two figure of eight communications optical cables of light-duty half dry type as claimed in claim 1, is characterized in that: described reinforcement unit comprises metal reinforcement and is wrapped in the metal reinforcement sheath outside described metal reinforcement.
5. the two figure of eight communications optical cables of light-duty half dry type as claimed in claim 4, is characterized in that: the external diameter of described metal reinforcement sheath is 2.1mm～2.3mm, and the thickness of described metal reinforcement sheath is 1.3mm～1.5mm.
6. two figure of eight communications optical cables of light-duty half dry type as claimed in claim 1, is characterized in that: described the first fiber unit and described the second fiber unit comprise respectively multifiber, be wrapped in loose sleeve pipe outside described optical fiber and for wrap up a plurality of described loose sleeve pipes set gradually from inside to outside block water and prick layer, plastic-aluminum combined belt and outer jacket.
7. the two figure of eight communications optical cables of light-duty half dry type as claimed in claim 6, is characterized in that: described the first fiber unit and described the second fiber unit also comprise the greasy for preventing water being filled in described loose sleeve pipe.
8. the two figure of eight communications optical cables of light-duty half dry type as claimed in claim 6, is characterized in that: described loose sleeve pipe comprises the loose sleeve pipe of surrounding that center pine sleeve pipe is peripheral and parallel with described center pine sleeve pipe with being centered around described center pine sleeve pipe.
9. two figure of eight communications optical cables of light-duty half dry type as claimed in claim 8, it is characterized in that: described the first fiber unit and described the second fiber unit also comprise the water resistance aramid fiber that is centered around pine sleeve pipe periphery, described center, described water resistance aramid fiber is parallel with described center pine sleeve pipe and be positioned at described center pine sleeve pipe and the described gap of loose sleeve pipe around.
10. the two figure of eight communications optical cables of light-duty half dry type as claimed in claim 8, is characterized in that: the external diameter of described center pine sleeve pipe is 1.58mm～1.64mm, and the wall thickness of described center pine sleeve pipe is 0.37mm～0.40mm; The described external diameter of loose sleeve pipe is around 1.48mm～1.54mm, and the described wall thickness of loose sleeve pipe is around 0.27mm～0.30mm; The external diameter of described outer jacket is 7.2mm～7.6mm, and the wall thickness of described 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 |
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| Application Number | Priority Date | Filing Date | Title |
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| 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 true CN103513378A (en) | 2014-01-15 |
| CN103513378B CN103513378B (en) | 2017-06-20 |
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| CN201310482732.4A Active 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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| 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 |
| 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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| 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 |
| 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 |
| 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 |
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| FR2904140B1 (en) * | 2006-07-19 | 2008-10-17 | Pomagalski Sa | DOUBLE-CARRIER MULTICONDUCTOR CABLE FOR A SECURITY LINE OF EQUIPMENT ON PYLONES AND COMMUNICATION IN STATION OF A TELEPORTED TRANSPORTATION SYSTEM. |
| 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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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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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 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| 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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| CN103513378B (en) | 2017-06-20 |
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