CN207586495U - A kind of access optical cable - Google Patents
A kind of access optical cable Download PDFInfo
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- CN207586495U CN207586495U CN201721748110.1U CN201721748110U CN207586495U CN 207586495 U CN207586495 U CN 207586495U CN 201721748110 U CN201721748110 U CN 201721748110U CN 207586495 U CN207586495 U CN 207586495U
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- oversheath
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Abstract
The utility model provides a kind of access optical cable, belongs to access optical cable field, and including cable main body, the cable main body includes oversheath and the multigroup optical communication element being arranged on inside oversheath；The optical communication element includes casing and the multifiber being arranged in casing, and at least four optical fiber are provided in each casing；At least first water blocking yarn is provided in the oversheath, first water blocking yarn is placed between multigroup optical communication element, and at least second water blocking yarn is provided in described sleeve pipe.This access optical cable is the optical cable of large core number Full-dry type small diameter, reduces cable outer diameter, improves optical fiber dense degree, is suitble to optical cable used for access network requirement；Dry type structure design, construction and welding are simple, and no ointment filling, manufacture craft environmental protection meets environmentally protective theory.
Description
Technical field
The utility model is related to access optical cable field, in particular to a kind of access optical cable.
Background technology
Optical fiber is that a kind of transmission rate is high, the big telecommunication media of capacity, since commercialization the 1980s, extensive use
In message areas such as communication network, internet, cable TV network, private networks.
Longitudinally infiltration protection is to prevent water in light using filled fiber cable ointment (fiber paste and the cable cream that blocks water) to traditional optical cable
Circulation in cable, but in optical cable manufacturing procedure, the stripping in fiber cable laying engineering, link, in the operation of branch, due to light
The viscosity of cable ointment, it is more difficult to clean out.
In addition with the rapid development of the communication services such as broadband upgrading and big customer, base station access, optical fiber demand and day
It is all to increase, local network is built using small core number optical cable and has been unable to meet communication service growth requirement.Small core number optical cable not only occupies greatly
Valuable, increasingly rare underground piping resource is measured, the huge waste of resource also caused by optical cable repeated construction, while also to local
The optical cable maintenance of net is made troubles.
Utility model content
The utility model provides a kind of access optical cable, it is intended to solve above-mentioned existing for access optical cable in the prior art ask
Topic.
What the utility model embodiment was realized in：
A kind of access optical cable, including cable main body, the cable main body includes oversheath and is arranged on inside oversheath
Multigroup optical communication element；The optical communication element includes casing and the multifiber being arranged in casing, is set in each casing
It is equipped at least four optical fiber；At least first water blocking yarn is provided in the oversheath, first water blocking yarn is placed in multigroup
At least second water blocking yarn is provided between the optical communication element, in described sleeve pipe.
Further, in the utility model preferred embodiment, reinforcer, the reinforcement are additionally provided in the oversheath
Part is located at the middle part of oversheath, and the optical communication element is set around the reinforcer.
Further, in the utility model preferred embodiment, the reinforcer is made of FRP, outside the reinforcer
Restrictive coating is arranged with, the restrictive coating is made of polyethylene.
Further, in the utility model preferred embodiment, the wall thickness of the oversheath is 1mm-1.5mm, the line
A diameter of 8mm-12mm of cable ontology.
Further, in the utility model preferred embodiment, the wall thickness of the oversheath is 1.2mm-1.4mm, described
A diameter of 9mm-10mm of cable main body.
Further, in the utility model preferred embodiment, the oversheath is made of medium density polyethylene.
Further, in the utility model preferred embodiment, 6-8 group optical communication elements are provided in the oversheath,
Optical fiber described in 8-20 roots is provided in described sleeve pipe.
Further, in the utility model preferred embodiment, 8 groups of optical communication elements, institute are provided in the oversheath
It states and 12 optical fiber is provided in casing.
Further, in the utility model preferred embodiment, the optical fiber uses 200 μm of optical fiber.
Further, in the utility model preferred embodiment, two described first is provided in the oversheath and is blocked water
Yarn is provided with second water blocking yarn in each casing.
The beneficial effects of the utility model are：The large core number Full-dry type small diameter that the present embodiment is obtained by above-mentioned design
Optical cable using 200 μ m diameter optical fiber, reduces cable outer diameter, improves optical fiber dense degree；Using non-metal reinforcement member FRP, it is suitble to connect
Networking is required with optical cable；Loose tube and cable core are blocked water using water blocking yarn, dry type structure design, and construction and welding are simple,
No ointment filling, manufacture craft environmental protection meet environmentally protective theory.The mechanical performance and and environment that the access optical cable has carried out
Experiment, institute's test event is qualified, design effect expected from acquirement.The sample optical cable delivered client of preparation is tried out, instead
It is good to present trial effect.
Description of the drawings
It, below will be to required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
The attached drawing used is briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore not
The restriction to range is should be considered as, for those of ordinary skill in the art, without creative efforts,
It can also be obtained according to these attached drawings other relevant attached drawings.
Fig. 1 is the structure diagram for the access optical cable that the utility model embodiment provides；
Fig. 2 is the structure diagram of optical communication element in the access optical cable that the utility model embodiment provides；
Fig. 3 is the structure diagram of reinforcer in the access optical cable that the utility model embodiment provides.
Icon：Cable main body 100, oversheath 110, optical communication element 120, casing 121, optical fiber 122, the second water blocking yarn
123rd, the first water blocking yarn 130, reinforcer 140, restrictive coating 141.
Specific embodiment
Purpose, technical scheme and advantage to make the utility model embodiment are clearer, below in conjunction with this practicality
The technical solution in the utility model embodiment is clearly and completely described in attached drawing in novel embodiment, shows
So, described embodiment is the embodiment of a part of embodiment of the utility model rather than whole.Based on this practicality
Embodiment in novel, those of ordinary skill in the art are obtained every other without creative efforts
Embodiment shall fall within the protection scope of the present invention.Therefore, the implementation to the utility model provided in the accompanying drawings below
The detailed description of mode is not intended to limit claimed the scope of the utility model, but is merely representative of the utility model
Selected embodiment.
In the description of the present invention, it is to be appreciated that the term of indicating position or position relationship is based on attached drawing
Shown orientation or position relationship are for only for ease of description the utility model and simplify description rather than instruction or imply institute
The element of finger must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that the utility model
Limitation.
In the utility model unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integral；Can be
Mechanical connection or electrical connection；It can be directly connected, can also be indirectly connected by intermediary, can be two
The interaction relationship of connection or two elements inside element.It for the ordinary skill in the art, can basis
Concrete condition understands concrete meaning of the above-mentioned term in the utility model.
In the utility model unless specifically defined or limited otherwise, fisrt feature is on or below second feature
It can be in direct contact including the first and second features, it is not to be in direct contact but pass through it that can also include the first and second features
Between other characterisation contact.Moreover, fisrt feature is on second feature, top and above include fisrt feature the
Right over two features and oblique upper is merely representative of fisrt feature level height higher than second feature.Fisrt feature is in the second spy
Under sign, lower section and fisrt feature included below immediately below second feature and obliquely downward or be merely representative of fisrt feature level
Highly it is less than second feature.
Embodiment.
A kind of access optical cable is present embodiments provided, referring to Fig. 1, this access optical cable includes cable main body 100, cable
Ontology 100 includes oversheath 110 and the multigroup optical communication element 120 being arranged on inside oversheath 110；Optical communication element 120 wraps
The multifiber 122 for including casing 121 and being arranged in casing 121 is provided at least four optical fiber 122 in each casing 121；
Two first water blocking yarns 130 are provided in oversheath 110, the first water blocking yarn 130 is placed between multigroup optical communication element 120, set
Second water blocking yarn 123 is provided in pipe 121.
It please refers to Fig.1 and Fig. 3, is additionally provided with reinforcer 140 in oversheath 110, reinforcer 140 is located at oversheath 110
Middle part, optical communication element 120 are set around reinforcer 140.Reinforcer 140 is made of FRP, and 140 outer cover of reinforcer is equipped with shield
Jacket layer 141, restrictive coating 141 are made of polyethylene.
The wall thickness of oversheath 110 is 1mm-1.5mm, a diameter of 8mm-12mm of cable main body 100.During oversheath 110 is used
Density polyethylene is made.It please refers to Fig.1 and Fig. 2, is provided with 6-8 groups optical communication element 120 in oversheath 110, is set in casing 121
It is equipped with 8-20 roots optical fiber 122.Optical fiber 122 uses 200 μm of optical fiber 122.
Preferably, the wall thickness of oversheath 110 is 1.2mm-1.4mm, a diameter of 9mm-10mm of cable main body 100；Outer shield
8 groups of optical communication elements 120 are provided in set 110,12 optical fiber 122 are provided in casing 121.
FRP is fibre reinforced composites, existing CFRP, GFRP, AFRP, BFRP etc..FRP composite materials are by undulation degree
The high-performance section bar material that material is formed after being mixed according to a certain percentage with basis material (resin).Light and hard, non-conductive, machinery is strong
Degree is high, recycles less, corrosion-resistant.
Optical fiber 122 uses a diameter of 200 μm of G.652D optical fiber 122, the second resistance of the interior 1 gang of 470dtex of addition of casing 121
Water yarn 123, cable core are blocked water using the first water blocking yarn 130 of 3333dtex and the bundle yarn that blocks water of 2500dtex, 121 material of casing
Expect PBT, outer shield MDPE.
Following process making may be used in access optical cable provided in this embodiment：
Colour process：For 200 μm of G.652D optical fiber 122, using newly-designed coloring mould, sizing die orifice size is
0.215mm；Ensure coloring effect, colouring speeds control in 1100m/min hereinafter, coloring after the completion of, per coiled optical fiber 122 need into
Row attenuation test after qualified, just carries out later procedure；
Plastic sleeve process：The second water blocking yarn 123 of 1 gang of 470dtex of addition in casing 121, block water use.Casing 121 is carried out
Afterwards, need to detect the wall thickness of casing 121, remaining length, 1 meter of 1 hour and 3 meters of infiltration tests of 24 hours after qualification, just carry out latter
Technique.
Cabling procedure：The mode that blocks water uses the FRP of a diameter of 2.2mm using water blocking yarn and the bundle yarn that blocks water, reinforcer 140,
Conductor assembly outer diameter control in 6.3mm, reinforcer 140 always one around 2 3333dtex water blocking yarn, stranding must assure that take-up is whole
Together, yarn is pricked using blocking water for 2500dtex on cable core.
Sheath process：Before production, head is decomposed, replaces filter screen, cleans screw rod, machine thorax, material distributing cone and flange, is ensured not
Impurity is introduced, outer shield PE material are controlled in 1.4mm, cable outer diameter in 9.3mm using medium density polyethylene, wall thickness control.
The cable configuration of large core number Full-dry type small diameter provided in this embodiment, by single mode or multimode fibre 122 be inserted in by
In the casing 121 of interior filling waterproof water blocking yarn that the plastics PBT of high-modulus makes, the center of cable core is a non-metal reinforcement member
140FRP, non-metal reinforcement member 140 can extrude layer of polyethylene outside, as bed course.Loose tube 121 or gasket for packing are in non-
Heart reinforcer is twisted into compact round cable core, and then extruded polyethylene oversheath is protected.
Some parameters of several table reaction access optical cables below.
Table 1：Design cable manufactures technical parameter
Table 2：The index of optical fiber
| Fibre diameter | 200μm±10μm |
| Cable cut-off wavelength | ≤1260nm |
| Optical fiber attenuation 1310nm | ≤0.35dB/km |
| Optical fiber attenuation 1310nm | ≤0.22dB/km |
| Optical fiber attenuation 1310nm | ≤0.25dB/km |
| 1550nm macrobending losses 100 enclose, diameter 60mm | ≤0.05dB |
Table 3：Finished cable measuring mechanical property method and performance requirement
Mechanical performance and environmental performance test are carried out to finished cable, mechanical performance includes：It stretches, torsion, alternating bending,
It flattens and impacts；Environmental performance includes temperature cycles and optical cable permeability performance, and specific test result see the table below.
Table 4：Finished cable performance test
The optical cable of large core number Full-dry type small diameter that the present embodiment is obtained by above-mentioned design, using 200 μ m diameter optical fiber,
Reduce cable outer diameter, improve optical fiber dense degree；Using non-metal reinforcement member FRP, it is suitble to optical cable used for access network requirement；Loose tube and
Cable core is blocked water using water blocking yarn, dry type structure design, and construction and welding are simple, no ointment filling, manufacture craft environmental protection,
Meet environmentally protective theory.Mechanical performance that the access optical cable has carried out and and environmental test, institute's test event is qualified, takes
Obtain expected design effect.The sample optical cable delivered client of preparation is tried out, and feedback trial effect is good.
Above description is merely a prefered embodiment of the utility model, is not intended to limit the utility model, for
For those skilled in the art, various modifications and changes may be made to the present invention.All spirit and original in the utility model
Within then, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of access optical cable, which is characterized in that including cable main body, the cable main body includes oversheath and is arranged on outer shield
Multigroup optical communication element inside set；The optical communication element includes casing and the multifiber being arranged in casing, Mei Yigen
At least four optical fiber are provided in casing；At least first water blocking yarn, first water blocking yarn are provided in the oversheath
It is placed between multigroup optical communication element, at least second water blocking yarn is provided in described sleeve pipe.
2. access optical cable according to claim 1, which is characterized in that reinforcer is additionally provided in the oversheath, it is described
Reinforcer is located at the middle part of oversheath, and the optical communication element is set around the reinforcer.
3. access optical cable according to claim 2, which is characterized in that the reinforcer is made of FRP, outside the reinforcer
Portion is arranged with restrictive coating, and the restrictive coating is made of polyethylene.
4. access optical cable according to claim 1, which is characterized in that the wall thickness of the oversheath is 1mm-1.5mm, described
A diameter of 8mm-12mm of cable main body.
5. access optical cable according to claim 1, which is characterized in that the wall thickness of the oversheath be 1.2mm-1.4mm, institute
State a diameter of 9mm-10mm of cable main body.
6. access optical cable according to claim 1, which is characterized in that the oversheath is made of medium density polyethylene.
7. access optical cable according to claim 2, which is characterized in that 6-8 group optic communication lists are provided in the oversheath
Member is provided with optical fiber described in 8-20 roots in described sleeve pipe.
8. access optical cable according to claim 7, which is characterized in that 8 groups of optical communication elements are provided in the oversheath,
12 optical fiber are provided in described sleeve pipe.
9. access optical cable according to claim 8, which is characterized in that the optical fiber uses 200 μm of optical fiber.
10. access optical cable according to claim 1, which is characterized in that two described first are provided in the oversheath
Water blocking yarn is provided with second water blocking yarn in each casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721748110.1U CN207586495U (en) | 2017-12-14 | 2017-12-14 | A kind of access optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721748110.1U CN207586495U (en) | 2017-12-14 | 2017-12-14 | A kind of access optical cable |
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| Publication Number | Publication Date |
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| CN207586495U true CN207586495U (en) | 2018-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721748110.1U Active CN207586495U (en) | 2017-12-14 | 2017-12-14 | A kind of access optical cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107894637A (en) * | 2017-12-14 | 2018-04-10 | 江苏亨通光电股份有限公司 | A kind of access optical cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107894637A (en) * | 2017-12-14 | 2018-04-10 | 江苏亨通光电股份有限公司 | A kind of access optical cable |
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