CN206573753U - Central-beam tube type fiber optic cable - Google Patents
Central-beam tube type fiber optic cable Download PDFInfo
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- CN206573753U CN206573753U CN201621132324.1U CN201621132324U CN206573753U CN 206573753 U CN206573753 U CN 206573753U CN 201621132324 U CN201621132324 U CN 201621132324U CN 206573753 U CN206573753 U CN 206573753U
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Abstract
The utility model provides a kind of central-beam tube type fiber optic cable, and it includes：Oversheath, in the oversheath and circular array of multiple loose tube sets, by the plurality of loose tube cover parcel cable core and positioned at loose tube set between tear rope and water blocking yarn, wherein, cable core includes the reinforcer bed course and the non-metal reinforcement member in the reinforcer bed course that cladding is covered by the multiple loose tube.The utility model uses novel small diameter optical cable, effectively reduces cable size, all nonmetallic materials of optical cable all material effectively avoid destruction of the thunderstorm weather to optical cable, and eliminate the processing of the lightning protection in work progress, improve efficiency of construction.Cable core uses half dry type structure, reduces pollution of the ointment to environment.Larger fiber number meets requirement of the access network aspect to fiber number；Coordinate special nonmetallic fixture, effectively fixed in connector box and light splitting fiber-dividing box.
Description
Technical field
The utility model belongs to communications optical cable technical field, more particularly to a kind of central-beam tube type fiber optic cable.
Background technology
With the fast development of the communication traffic such as broadband raising speed and big customer, base station access, optical fiber demand is growing day by day,
Communication traffic growth requirement can not be met by building LAN using small core number optical cable.
Small core number optical cable not only takes a large amount of valuable, increasingly rare underground piping resources, also because optical cable repeated construction is made
Into the huge waste of investment, while also the optical cable maintenance to LAN is made troubles.
Generally using GYTA (Stranded Loose Tube Non-metallic Cable, pine in current access network
Cover layer-twisted type armored optical cable) etc. carry the optical cable of metal material, laid built on stilts etc. in scene to prevent from thunder and lightning from introducing causing pair
The destruction of room facility, also needs to carry out grounding to optical cable.
The core number of GYTA optical cables is general in 48 cores or so, and maximum is also no more than 72 cores.It is existing GYTA light as shown in Figure 1
The structural representation of cable, optical cable center using steel wire as reinforcer 1, provided with 6 loose tubes sets 4 around center reinforcemen 1,
Provided with many with filling fine cream 6 between optical fiber 5, optical fiber 5 in loose tube set 4；Sleeve pipe 4 and cable part are entered using the filling mode of ointment 2
Row is blocked water, and vertical bag processing is carried out using steel band or aluminium strip 7 outside cable core, and last extrusion molding layer of polyethylene oversheath 3 is protected.
But with the development of Optical Access Network, the shortcoming of conventional cable is also highlighted gradually, thus optic cable design when
Time need to be accounted for some following key element：
A. core number is designed：At present, with reference to customer demand, access network aspect core number demand in 144 cores or so, to improve
Cable Core Number, considers to use optical fiber ribbon cable at the beginning of design, but the use environment and optical fiber ribbon cable of combination operator are existed in itself
The problems such as splice loss, splice attenuation is bigger than normal, structure that is last or selecting the every pipe of 12 conventional cores.
B. the selection of material:Metal material such as steel aluminium strip and metal reinforcement in conventional cable under thunder and lightning weather, if
Optical cable does not carry out grounding, and metal material that may be middle can be introduced into thunder and lightning in computer room to destroy equipment therein, because
This need to select nonmetallic materials as reinforcement original paper therein.Strengthening original paper at present mainly has Fiber glass rod (FRP), aramid fiber
Yarn, glass fibre yarn etc., because aramid fiber is expensive, have the title of " thin gold ", therefore are left out.Due to nonmetallic materials without
All provided no advantage against compared with steel wire by from price or in stretch modulus, but should reach that the mechanical performance of conventional cable refers to
Mark, it is at least up to suitable with conventional cable price in price again, therefore can only be optimized and revised in physical dimension.
C. physical dimension is adjusted：To ensure the mechanical performance of optical cable, the whole scope of size adjustable of metalloid core reinforcer
Less, if but casing size can be optimized, casing size is reduced by process equipment improvement, so that it may save outside center reinforcemen pad
The usage amount of layer material and the usage amount of shell material.In view of the knowhow and equipment situation of current each producer, dry type
Casing size is still difficult to the size of oil filled bushing,
D.200um optical fiber：The cladding diameter of Standard single-mode fiber is a diameter of 245 ± 10um after 125um, coat,
External diameter after coloring is 255 ± 10um.Because the reduction of optical fiber equivalent diameter uses small chi in the case of casing size identical
The dutycycle of very little optical fiber has lifting by a relatively large margin, so the properties of optical cable also will be enhanced.
Therefore optical cable chi can further be optimized in the case where ensureing that cable machinery performance is qualified using the optical fiber of minor diameter
It is very little, solve the integrated cost of product.
Utility model content
It is all non-that the purpose of this utility model is that offer one kind effectively reduces cable size, optical cable all material
The central-beam tube type fiber optic cable and its manufacture method of metal material.
The utility model provides a kind of central-beam tube type fiber optic cable, and it includes：It is oversheath, in the oversheath and rounded
Multiple loose tube sets of arrangement, the cable core by the plurality of loose tube set parcel and tear rope and water blocking yarn between loose tube set,
Wherein, cable core includes covering the reinforcer bed course of cladding and the nonmetallic reinforcement in the reinforcer bed course by the multiple loose tube
Part.
Preferably, the tear rope is set close to oversheath, and the water blocking yarn is set close to cable core.
Preferably, the loose tube is arranged with 12.
Preferably, each loose tube set includes multiple small diameter fibers and the oil being arranged between the plurality of small diameter fiber
Cream.
Preferably, a diameter of 200um of the optical fiber.
The utility model uses novel small diameter optical cable, effectively reduces cable size, optical cable all material is all
Nonmetallic materials, effectively avoid destruction of the thunderstorm weather to optical cable, and eliminate the processing of the lightning protection in work progress,
Improve efficiency of construction.Cable core uses half dry type structure, reduces pollution of the ointment to environment.Larger fiber number meets and connect
Requirement of the networking aspect to fiber number；Coordinate special nonmetallic fixture, carried out in connector box and light splitting fiber-dividing box effective
It is fixed.
Brief description of the drawings
Fig. 1 is the structural representation of existing GYTA optical cables；
Fig. 2 is the structural representation of the utility model central-beam tube type fiber optic cable；
Fig. 3 is the manufacturing process schematic diagram of optical cable shown in Fig. 2；
Fig. 4 is the structural representation for the optical fiber Dyeing mould for being matched in optical cable shown in Fig. 2；
Fig. 5 is the structural representation for the plastic clamp for being matched in optical cable shown in Fig. 2.
Embodiment
The utility model central-beam tube type fiber optic cable, specially a kind of Lightweight nonmetal filled type microbeam pipe for access network
Optical cable, as shown in Fig. 2 this central-beam tube type fiber optic cable includes：It is oversheath 1, in the oversheath 1 and circular array of multiple
Loose tube set 2, the cable cores by the parcel of the plurality of loose tube set 2 and tear rope 3 and water blocking yarn 4 between loose tube set 2.Wherein,
Tear rope 3 is set close to oversheath 1, and water blocking yarn 4 is set close to cable core.
Cable core includes covering the reinforcer bed course 5 of 2 claddings by multiple loose tubes and nonmetallic in the reinforcer bed course 5 adds
Strong part 6.
In the present embodiment, loose tube set 2 is provided with 12.Each loose tube set 2 includes multiple small diameter fibers 21 and is arranged on
Ointment 22 between the plurality of small diameter fiber 21, a diameter of 200um of optical fiber 21.
Fig. 3 is the utility model central-beam tube type fiber optic cable manufacturing process schematic diagram, and manufacturing this central-beam tube type fiber optic cable includes
Following steps：
Step S1：Prepare raw material；
Step S2：The optical fiber 21 of 200um diameters carries out dyeing process first, then carries out plastic sleeve process and cabling procedure；
Step S3：The raw material of optical fiber and sheath after stranding carry out sheath process, and this central beam tube type light is made
Cable；
Step S4：The central-beam tube type fiber optic cable that step S3 is made carries out finished product detection.
Wherein, raw material, optical fiber, dyeing process, plastic sleeve process and cabling procedure be made be required to carry out process detection.
The detailed process of this central-beam tube type fiber optic cable manufacture is as follows：
First：Mould is transformed：Due to using 200um ultra-thin glass fibers 21, needed die size on the dyeing process of optical fiber
Readjusted；In plastic sleeve process, it is optimized due to covering 2 sizes to loose tube, therefore its die size is also needed accordingly
Adjustment, Fig. 4 is the structural representation for the optical fiber Dyeing mould for being matched in 200um.
Second：Plastic sleeve technique excess length control：Due to having used 200um small diameter fibers, optical fiber covers the remaining length in 2 in loose tube
Control need to carry out technologic parameter adjustment.First by the calculating to material extrusion molding draw ratio, transform existing mold and design
New die.Die size is adjusted according to the effect of actual debugging extrusion molding, in the hope of reaching most stable of technique.Its secondary consideration optical fiber
Long problem more than in loose tube set 2, in process of production by adjusting folding and unfolding line tension, monitoring per water-saving groove temperature, regulation is led
Running wheel number of turns etc. reaches stable excess length control, meets the secondary remaining long demand of later process.
3rd：Cabling procedure：The size of 2 and reinforcer bed course 5 is covered according to loose tube, twisting pitch reasonable in design is prevented
There is cable core and the phenomenon such as wiped.Simultaneously because reinforcer 6 uses nonmetallic materials, therefore it should be noted the tension force of retractable cable.
Because cable core uses dry type material water-proof material, the utility model carries out longitudinal water-blocking using waterstop or water blocking yarn 4, it is ensured that optical cable
Deep water performance is qualified.
During constructing operation, the difference maximum with routine GYTA optical cables of this central-beam tube type fiber optic cable is that center is strengthened
The change of the material of part 6 causes the difference for occurring fixed form in work progress.Because the center reinforcemen of conventional cable is metal
Reinforcer, based on fixation of the optical cable in connector box or light splitting fiber-dividing box is fixed with reinforcer, supplemented by the fixation of cable；Metal is strengthened
Part carries out screw tightening by the column in connector box or fiber-dividing box and reinforces fixation.
This central-beam tube type fiber optic cable fixing means in construction is：Center reinforcemen of the present utility model uses non-metallic material
Material is made, and optical cable reinforcer will be caused nonmetallic after the column hole through in connector box or fiber-dividing box using screw means
The fracture for the non-metal reinforcement member being easily caused after the fragmentation of material, later stage optical cable under tension in connector box and fiber-dividing box,
So as to influence the transmission performance of optical cable.Therefore for preferably optical cable is fixed, the utility model uses round plastic fixture
100 pairs of reinforcers 6 carry out special fixation, and non-metal reinforcement member 6 is fixed by plastic clamp 100, exist so as to improve optical cable
Fixation pulling force in connector box and fiber-dividing box.
As shown in figure 5, the profile of plastic clamp 100 is circle, it is internal including the first circular port 101, the second circular port
102 and the passage 103 of the circular port 102 of the first circular port 101 and second is connected, first circular port 101 fixes nonmetallic
Reinforcer, first circular port 101 that is used as of the second circular port 102 fixes a various sizes of elastic deformation.
.Using semicircle in fixture 100, it is easy to the fixation of various sizes of non-metal reinforcement member 6, is applicable to connector box
And the optical cable in fiber-dividing box is fixed.
Optical cable non-metal reinforcement member 6 pass through plastic clamp 100 after by larynx hoop carry out tighten up fixation, so that optical cable be fixed
In connector box or fiber-dividing box.
The utility model uses the reinforcer of nonmetal structure, and its lightweight, flexibility is good, is easy to optical cable construction, improves
Efficiency of construction；Non-metal reinforcement member has the function of thunder-lightning, destruction of the reduction thunder and lightning weather to calculator room equipment；Nonmetallic reinforcement
Part avoids the processing of lightning protection in work progress, improves efficiency of construction, reduces construction cost.
The utility model uses 200um small diameter fibers, and fibre core diameter is 125um, and coat a diameter of 200 ±
10um, the external diameter after coloring is 205 ± 10um, and the property indices of optical fiber and requirement are satisfied by standard requirement.
The external diameter and weight (including bed course, sleeve pipe, outer shield, block water bundle yarn etc.) of optical cable are effectively reduced, optical cable is controlled
Production cost.
The utility model has the special stationary fixture of supporting optical cable, adds optical cable consolidating in connector box and fiber-dividing box
Determine pulling force, it is ensured that the normal of optical cable is used.
The utility model external diameter is close with conventional cable, it is to avoid because cable outer diameter is excessive take the pipe of growing tension
Road space.
The utility model all uses nonmetallic materials, and sheath is directly contacted with cable core, and the steel aluminium strip in conventional cable
It can help to directly take out after the outer shield of optical cable cutting with cable core ointment and strip out cable core, therefore the utility model product is placed outside cable core
One or two tear ropes synthesized by polyester material, are so conducive to the stripping of non-metallic optical fiber cables.
Center reinforcemen 6 solidifies the nonmetallic Fiber glass rod being made using through glass fiber resin, and tensile strength is met
The requirement of conventional cable.
Cable part of the present utility model is blocked water using solid-state material water-proof material, and solid-state material water-proof material meets water can be automatic swollen
Swollen water suction, prevents moisture from further permeating, the effect blocked water comprehensively is played from transverse direction and longitudinal direction, it is to avoid cable core ointment is to ring
The pollution in border.
The utility model by optimizing cable configuration size, including the use of 200um small diameter fibers optimization casing size, compared with
The block water usage amount for pricking yarn, the less cable core structure of thickness and sleeve pipe that small casing size optimizes the outer bed course of reinforcer is reduced
The usage amount of outer shield, so as to reduce the material cost of optical cable on the whole.
The utility model places 1 tear rope outside cable core, consequently facilitating the optical cable baring in work progress.
The utility model does not contain metal material, effectively avoids destruction of the thunderstorm weather to optical cable, eliminates simultaneously
Lightning protection processing in work progress.
The utility model uses novel small diameter optical cable, effectively reduces cable size, optical cable all material is all
Nonmetallic materials, effectively avoid destruction of the thunderstorm weather to optical cable, and eliminate the processing of the lightning protection in work progress,
Improve efficiency of construction.Cable core uses half dry type structure, reduces pollution of the ointment to environment.Larger fiber number is met
Requirement of the access network aspect to fiber number；Coordinate special nonmetallic fixture, carried out in connector box and light splitting fiber-dividing box effective
Fixation.
Principle and its effect that the merely exemplary explanation the utility model of the above embodiments is created, and the reality that part is used
Example is applied, not for limitation the utility model；It should be pointed out that for the person of ordinary skill of the art, not departing from this
On the premise of utility model creates design, various modifications and improvements can be made, these belong to protection of the present utility model
Scope.
Claims (5)
1. a kind of central-beam tube type fiber optic cable, it is characterised in that it includes：Oversheath, in the oversheath and rounded arrangement
Multiple loose tube sets, by the plurality of loose tube cover parcel cable core and positioned at loose tube set between tear rope and water blocking yarn, its
In, cable core includes covering the reinforcer bed course of cladding and the nonmetallic reinforcement in the reinforcer bed course by the multiple loose tube
Part.
2. central-beam tube type fiber optic cable according to claim 1, it is characterised in that：The tear rope is set close to oversheath,
The water blocking yarn is set close to cable core.
3. central-beam tube type fiber optic cable according to claim 1, it is characterised in that：The loose tube is arranged with 12.
4. central-beam tube type fiber optic cable according to claim 1, it is characterised in that：Each loose tube set includes multiple minor diameter light
Ointment that is fine and being arranged between the plurality of small diameter fiber.
5. central-beam tube type fiber optic cable according to claim 4, it is characterised in that：A diameter of 200um of the optical fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621132324.1U CN206573753U (en) | 2016-10-18 | 2016-10-18 | Central-beam tube type fiber optic cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621132324.1U CN206573753U (en) | 2016-10-18 | 2016-10-18 | Central-beam tube type fiber optic cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206573753U true CN206573753U (en) | 2017-10-20 |
Family
ID=60063879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621132324.1U Active CN206573753U (en) | 2016-10-18 | 2016-10-18 | Central-beam tube type fiber optic cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206573753U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106443918A (en) * | 2016-10-18 | 2017-02-22 | 江苏亨通光电股份有限公司 | Center beam tube type optical cable, manufacturing method and fixing method of center beam tube type optical cable and plastic fixture |
| 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 |
-
2016
- 2016-10-18 CN CN201621132324.1U patent/CN206573753U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106443918A (en) * | 2016-10-18 | 2017-02-22 | 江苏亨通光电股份有限公司 | Center beam tube type optical cable, manufacturing method and fixing method of center beam tube type optical cable and plastic fixture |
| CN106443918B (en) * | 2016-10-18 | 2023-11-03 | 江苏亨通光电股份有限公司 | Central beam tube type optical cable, manufacturing method and fixing method thereof and plastic clamp |
| 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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