CN203551854U - Improved all-dielectric self-support optical cable - Google Patents
Improved all-dielectric self-support optical cable Download PDFInfo
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- CN203551854U CN203551854U CN201320648512.XU CN201320648512U CN203551854U CN 203551854 U CN203551854 U CN 203551854U CN 201320648512 U CN201320648512 U CN 201320648512U CN 203551854 U CN203551854 U CN 203551854U
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- waterstop
- optical cable
- rectangular cavity
- protective sleeve
- dielectric self
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Abstract
The utility model relates to the optical cable technology field, and especially relates to an improved all-dielectric self-support optical cable. The improved all-dielectric self-support optical cable comprises an optical cable tape, water-blocking tapes, nonmetal reinforcement cores and a protective sleeve, wherein the cross section of the protective sleeve is ellipse-shaped, and the center of the protective sleeve is provided with a rectangular cavity; left and right sides of the rectangular cavity are respectively provided with one of the nonmetal reinforcement cores, the optical cable tape and the water-blocking tapes are disposed in the rectangular cavity, the water-blocking tapes are parallel to the optical cable tape, and the water-blocking tapes have the same length as the rectangular cavity; and the water-blocking tapes comprises an upper water-blocking tape and a lower water-blocking tape, the upper water-blocking tape is disposed between the optical cable tape and an upper wall surface of the rectangular cavity, and the lower water-blocking tape is disposed between the optical cable tape and a lower wall surface of the rectangular cavity. The improved all-dielectric self-support optical cable is high in optical fiber density, light in weight, good in mechanical physical performance and high in sensitivity.
Description
Technical field
The utility model relates to optical cable technology field, relates in particular to a kind of modified form All Dielectric self-support.
Background technology
Optical cable is the main delivery means of the various Information Networks of current information society, by structure, is generally divided into layer-twisted type and central beam tube type.Take central-beam tube type fiber optic cable as example, and mostly the composition of its inner structure, be by outer protective sleeve, center beam tube, water blocking layer, reinforcement unit to be wrapped in wherein, and the important document of composition optical cable one by one optical fiber is placed in the center beam tube that has been full of medium ointment.Wherein, water blocking layer is mainly used in waterproof; Strengthen unit mainly in order to resistance to compression and support optical cable.
The general number of fibers of optical cable of this type is less, in order to increase optical fiber, can only increase volume, therefore optical cable weight is increased the weight of, and has not only increased the production cost of manufacturing optical cable, and has increased difficulty to built on stilts the laying of optical cable.In the long-term use of optical cable, circular central beam tube type structure is unfavorable for resisting the destructiveness that high wind brings, and adds that the weight of self is larger, and such optical cable is difficult to adapt to various severe execution conditions and complex environment.Along with the sustainable growth of transinformation and broadband services demand and optical fiber communication, to FTTB(, Fiber To The Building), FTTO(Fiber-To-The-Office), FTTH(fiber-to-the-home front yard) etc. the demand of building, the lightguide cable link that more and more needs large core number, low connecting loss and low installation cost, existing optical cable obviously can not meet the requirement day by day improving.In order to reach waterproof effect, water barrier adopts greasy for preventing water conventionally, not only pollute the environment, and such way can make the bending property of optical cable poor, and can cause the susceptibility variation of optical cable to effects such as temperature, pressure, strains.Secondly, the compressive property of existing optical cable and lightning-arrest effect all can not adapt to the index request of optical cable now simultaneously completely.
Summary of the invention
The purpose of this utility model is to avoid above-mentioned weak point of the prior art and the modified form that a kind of density of optic fibre is high, lightweight, mechanical and physical performance is good, highly sensitive All Dielectric self-support is provided.
The purpose of this utility model is achieved through the following technical solutions:
A kind of modified form All Dielectric self-support is provided, comprise fibre ribbon, waterstop, nonmetal strengthening core and protective sleeve, the shape of the transversal section of described protective sleeve is Long Circle, the center of described protective sleeve is provided with a rectangular cavity, the left and right sides of described rectangular cavity is respectively arranged with a described nonmetal strengthening core, described fibre ribbon and described waterstop are arranged at the inside of described rectangular cavity, described waterstop is parallel with described fibre ribbon, the length of described waterstop equals the length of described rectangular cavity, described waterstop comprises waterstop and lower waterstop, described upper waterstop is arranged between described fibre ribbon and the upper wall surface of described rectangular cavity, described lower waterstop is arranged between described fibre ribbon and the lower wall surface of described rectangular cavity.
Wherein, described fibre ribbon is comprised of 2～12 rows' optical fiber row stack, and 24 optical fiber are drawn together in the package of every row's optical fiber.
Wherein, described waterstop is water blocking yarn.
Wherein, described nonmetal strengthening core is glass fibre strengthening core.
Wherein, described nonmetal strengthening core is aramid yarn strengthening core.
Wherein, the axial line of the center line of described fibre ribbon and two described nonmetal strengthening cores is in the same plane.
Wherein, described protective sleeve is low smoke and zero halogen protective sleeve.
Wherein, described protective sleeve is tygon protective sleeve.
The beneficial effects of the utility model:
A kind of modified form All Dielectric self-support of the present utility model, the cross section profile of optical cable adopts Long Circle, compare with existing circular central beam tube type structure, not only significantly reduced the own wt of optical cable, being conducive to realize the built on stilts of large span lays, simultaneously owing to having reduced cable material consumption, reduce raw materials consumption, thereby reduced production cost, and the optical cable of long round section has superior bending property and good lateral pressure resistant ability, can effectively weaken wind and carry brought destructiveness, make optical cable can adapt to various severe execution conditions and complex environment, in addition, lay lighter optical cable, the requirement of laying apparatus also can correspondingly be reduced, make construction working easier, adopt nonmetal strengthening core as the reinforcement of optical cable, cost is lower, can further reduce production costs, and because the toughness of nonmetal strengthening core itself is better, thereby make flexibility and the bending property of the optical cable finally made better, fibre ribbon is arranged in jumbo rectangular cavity, can efficiently utilize the space of rectangular cavity, under the prerequisite that does not increase optical cable, increases optical fiber, thereby improves density of optic fibre, this modified form All Dielectric self-support is dry type structure, and any fluid material water-proof material is not used in optical cable inside, reduces environmental pollution, adopt the waterstop isometric with rectangular cavity to substitute the waterproof paste adopting in conventional cable, can not only play same waterproof effect, can improve the sensitive property of optical fiber to effects such as temperature, pressure, strains simultaneously, waterstop is set in parallel in the both sides up and down of fibre ribbon, when guaranteeing waterproof, can not hinder the flexion torsion of the nonmetal strengthening core of the left and right sides, because whole optical cable is full dielectric structure, can effectively prevent thunderbolt, this modified form All Dielectric self-support production technology is simple, and secondary coating and stranding operation in need not conventional cable production technology be enhanced productivity when reducing production costs.
Accompanying drawing explanation
Utilize accompanying drawing to be described further utility model, but the embodiment in accompanying drawing does not form any restriction of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to the following drawings other accompanying drawing.
Fig. 1 is the structural representation of a kind of modified form All Dielectric self-support of the present utility model.
Reference numeral:
1-protective sleeve,
The nonmetal strengthening core of 2-,
3-waterstop,
4-fibre ribbon,
5-rectangular cavity
The upper waterstop of 6-,
Waterstop under 7-.
Embodiment
With the following Examples the utility model is further described.
A modified form All Dielectric self-support, as shown in Figure 1, comprises fibre ribbon 4, waterstop 3, nonmetal strengthening core 2 and protective sleeve 1.
The cross section profile of protective sleeve 1 is Long Circle, and protective sleeve 1 is preferably low smoke and zero halogen protective sleeve or tygon protective sleeve.Protective sleeve 1 adopts oblong cross section profile, compare with existing circular central beam tube type structure, not only significantly reduced the own wt of optical cable, being conducive to realize the built on stilts of large span lays, simultaneously owing to having reduced cable material consumption, reduce raw materials consumption, thereby reduced production cost, and the optical cable of long round section has superior bending property and good lateral pressure resistant ability, can effectively weaken wind and carry brought destructiveness, make optical cable can adapt to various severe execution conditions and complex environment; In addition, lay lighter optical cable, the requirement of laying apparatus also can correspondingly be reduced, make construction working easier.
The center of protective sleeve 1 is provided with a rectangular cavity 5, and the left and right sides of rectangular cavity 5 is respectively arranged with a nonmetal strengthening core 2, and nonmetal strengthening core 2 is preferably glass fibre strengthening core or aramid yarn strengthening core.Adopt nonmetal strengthening core 2 as the reinforcement of optical cable, cost is lower, can further reduce production costs; And because the toughness of nonmetal strengthening core 2 itself is better, thereby make flexibility and the bending property of the optical cable finally made better.
Fibre ribbon 4 and waterstop 3 are all arranged in rectangular cavity 5, and wherein, fibre ribbon 4 is comprised of 2～12 row's optical fiber row stacks, and 24 optical fiber are drawn together in the package of every row's optical fiber.Fibre ribbon 4 is arranged in jumbo rectangular cavity 5, can efficiently utilize the space of rectangular cavity 5, under the prerequisite that does not increase optical cable, increases number of fibers, thereby improves density of optic fibre.
Waterstop 3 is parallel with fibre ribbon 4, the length of waterstop 3 equals the length of rectangular cavity 5, waterstop 3 comprises waterstop 6 and lower waterstop 7, and upper waterstop 6 is arranged between fibre ribbon 4 and the upper wall surface of rectangular cavity 5, and lower waterstop 7 is arranged between fibre ribbon 4 and the lower wall surface of rectangular cavity 5.Adopt the waterstop isometric with rectangular cavity 54 to substitute the waterproof paste adopting in conventional cable, can not only play same waterproof effect, can improve the sensitive property of optical fiber to effects such as temperature, pressure, strains simultaneously; Waterstop 3 is set in parallel in the both sides up and down of fibre ribbon 4, when guaranteeing waterproof, can not hinder the flexion torsion of the nonmetal strengthening core 2 of the left and right sides.
In order further to improve the crooked distortion performance of optical cable, the center line of fibre ribbon 4 can be arranged to the axial line of two nonmetal strengthening cores 2 in the same plane.
Because whole optical cable is full dielectric structure, can effectively prevent thunderbolt; Meanwhile, this modified form All Dielectric self-support is dry type structure, and any fluid material water-proof material is not used in optical cable inside, reduces environmental pollution; This modified form All Dielectric self-support production technology is simple, and secondary coating and stranding operation in need not conventional cable production technology be enhanced productivity when reducing production costs.
Finally should be noted that; above embodiment is only in order to illustrate the technical solution of the utility model; but not restriction to the utility model protection domain; although the utility model has been done to explain with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify or be equal to replacement the technical solution of the utility model, and not depart from essence and the scope of technical solutions of the utility model.
Claims (8)
1. a modified form All Dielectric self-support, it is characterized in that: comprise fibre ribbon, waterstop, nonmetal strengthening core and protective sleeve, the shape of the transversal section of described protective sleeve is Long Circle, the center of described protective sleeve is provided with a rectangular cavity, the left and right sides of described rectangular cavity is respectively arranged with a described nonmetal strengthening core, described fibre ribbon and described waterstop are arranged at the inside of described rectangular cavity, described waterstop is parallel with described fibre ribbon, the length of described waterstop equals the length of described rectangular cavity, described waterstop comprises waterstop and lower waterstop, described upper waterstop is arranged between described fibre ribbon and the upper wall surface of described rectangular cavity, described lower waterstop is arranged between described fibre ribbon and the lower wall surface of described rectangular cavity.
2. a kind of modified form All Dielectric self-support according to claim 1, is characterized in that: described fibre ribbon is comprised of 2～12 rows' optical fiber row stack, and 24 optical fiber are drawn together in the package of every row's optical fiber.
3. a kind of modified form All Dielectric self-support according to claim 1, is characterized in that: described waterstop is water blocking yarn.
4. a kind of modified form All Dielectric self-support according to claim 1, is characterized in that: described nonmetal strengthening core is glass fibre strengthening core.
5. a kind of modified form All Dielectric self-support according to claim 1, is characterized in that: described nonmetal strengthening core is aramid yarn strengthening core.
6. a kind of modified form All Dielectric self-support according to claim 1, is characterized in that: the axial line of the center line of described fibre ribbon and two described nonmetal strengthening cores is in the same plane.
7. a kind of modified form All Dielectric self-support according to claim 1, is characterized in that: described protective sleeve is low smoke and zero halogen protective sleeve.
8. a kind of modified form All Dielectric self-support according to claim 7, is characterized in that: described protective sleeve is tygon protective sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320648512.XU CN203551854U (en) | 2013-10-21 | 2013-10-21 | Improved all-dielectric self-support optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320648512.XU CN203551854U (en) | 2013-10-21 | 2013-10-21 | Improved all-dielectric self-support optical cable |
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| Publication Number | Publication Date |
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| CN203551854U true CN203551854U (en) | 2014-04-16 |
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| CN201320648512.XU Expired - Fee Related CN203551854U (en) | 2013-10-21 | 2013-10-21 | Improved all-dielectric self-support optical cable |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104181656A (en) * | 2014-08-29 | 2014-12-03 | 长飞光纤光缆股份有限公司 | Full-dry type full-medium optical fiber ribbon optical cable and manufacturing method thereof |
| CN104252022A (en) * | 2014-08-19 | 2014-12-31 | 天津长飞鑫茂光缆有限公司 | All-dry fiber ribbon optical cable and molding method thereof |
| CN105137557A (en) * | 2015-09-16 | 2015-12-09 | 烽火通信科技股份有限公司 | Equal delay transmission multifiber cable |
-
2013
- 2013-10-21 CN CN201320648512.XU patent/CN203551854U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104252022A (en) * | 2014-08-19 | 2014-12-31 | 天津长飞鑫茂光缆有限公司 | All-dry fiber ribbon optical cable and molding method thereof |
| CN104252022B (en) * | 2014-08-19 | 2017-03-22 | 天津长飞鑫茂光缆有限公司 | All-dry fiber ribbon optical cable and molding method thereof |
| CN104181656A (en) * | 2014-08-29 | 2014-12-03 | 长飞光纤光缆股份有限公司 | Full-dry type full-medium optical fiber ribbon optical cable and manufacturing method thereof |
| CN104181656B (en) * | 2014-08-29 | 2016-03-16 | 长飞光纤光缆股份有限公司 | A kind of dry type all dielectric optical fibre band optical cable and preparation method thereof |
| CN105137557A (en) * | 2015-09-16 | 2015-12-09 | 烽火通信科技股份有限公司 | Equal delay transmission multifiber cable |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20211021 |
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| CF01 | Termination of patent right due to non-payment of annual fee |