CN109975936A - A kind of lenticular central tube dragging optical cable and its corresponding manufacture craft - Google Patents
A kind of lenticular central tube dragging optical cable and its corresponding manufacture craft Download PDFInfo
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- CN109975936A CN109975936A CN201910359006.0A CN201910359006A CN109975936A CN 109975936 A CN109975936 A CN 109975936A CN 201910359006 A CN201910359006 A CN 201910359006A CN 109975936 A CN109975936 A CN 109975936A
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- lenticular
- tube
- fiber
- optical cable
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4415—Cables for special applications
- G02B6/4427—Pressure resistant cables, e.g. undersea cables
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The present invention provides a kind of lenticular central tube dragging optical cable, central tube uses lenticular structure, reduces the contact area of center outer tube layer and restrictive coating internal layer, ensure that the due performance of optical cable institute；And its structure is simple, light-weight, easy for construction quickly, and construction period and construction cost greatly reduces.It includes tight tube fiber component, lenticular center tube boot, the lenticular center tube boot specifically includes annular inner portion, periphery along radial equipartition contour convex portion, interval between adjacent convex portion forms inner groovy, the tight tube fiber component is located at the center of the annular inner portion of the lenticular center tube boot, the periphery of the tight tube fiber component and the inner wall of the annular inner portion are formed by between gap filled with glass fiber yarn, the combined equivalent outer ring surface formed of the convex portion is coated with oversheath internal layer, the periphery of the oversheath internal layer is coated with oversheath.
Description
Technical field
The present invention relates to the technical field of optical cable, specially a kind of lenticular central tube dragging optical cable, the present invention also provides
The manufacture craft of the dragging optical cable.
Background technique
It is suggested so far from the concept of the last century 70's cellular communication, mobile communication has gone through the development of four generations and goes through
Journey, the 5th Generation Mobile Communication System (5G) are strided forward towards the direction of higher rate, more low time delay, more low-power consumption.5G will be adopted
With C-RAN framework, it is up to the peak rate for decupling 4G, the propagation delay time and hundred billion grades of concatenation ability of Millisecond to provide,
Open the new era that all things on earth interconnects extensively, man-machine depth is interactive.4G bearer network framework concentrates deployment way extensive using BBU
It is applying, and 5G carrying planar network architecture variation uses DU/CU deployment way, needs more dragging optical cables in DU and AAU forward pass section
To support network construction.
Existing dragging optical cable uses subelement and gasket for packing reinforcement structure, in structure design using the twisted side of double helix
Formula, production technology is complicated, and production difficulty is higher, and the optical cable uses aramid fiber yarn to fill as pulling force, higher cost.
Summary of the invention
In view of the above-mentioned problems, central tube is using lenticular the present invention provides a kind of lenticular central tube dragging optical cable
Structure reduces the contact area of center outer tube layer and restrictive coating internal layer, ensure that the due performance of optical cable institute；And its structure letter
It is single, light-weight, easy for construction quick, construction period and construction cost greatly reduces.
A kind of lenticular central tube dragging optical cable, it is characterised in that: it includes tight tube fiber component, lenticular central tube
Sheath, the lenticular center tube boot specifically include annular inner portion, periphery along radial equipartition contour convex portion, it is adjacent
Convex portion between interval form inner groovy, the tight tube fiber component is located at the inner ring of the lenticular center tube boot
Partial center, the periphery of the tight tube fiber component and the inner wall of the annular inner portion are filled between being formed by gap
Glass fiber yarn, the combined equivalent outer ring surface formed of the convex portion are coated with oversheath internal layer, the oversheath internal layer
Periphery be coated with oversheath.
It is further characterized by:
The oversheath internal layer is specially glass fiber yarn；
The tight tube fiber component includes at least one tight tube fiber；
When tight tube fiber component is a tight tube fiber, the periphery of the tight tube fiber is coated with cricoid glass fibre
The inner wall arrangement of the annular inner portion is close in yarn, the periphery of the glass fiber yarn；
When tight tube fiber component is at least two tight tube fibers, the twisted arrangement of tight tube fiber, the component being twisted
Periphery is coated with glass fiber yarn, and the inner wall arrangement of the annular inner portion is close in the periphery of the glass fiber yarn；
Optical fiber in the tight tube fiber is single mode optical fiber or multimode fibre, directly coated with height outside single mode or multimode fibre
Tight tube fiber is made in the fixed material of bond strength；
The fixed material is specially LSZH fire proofing；
Global sections after the oversheath is overmolded are circular configuration；
The oversheath is specially LSZH fire proofing；
The lenticular center tube boot is specially LSZH fire proofing.
A kind of manufacture craft of lenticular central tube dragging optical cable, it is characterised in that: choose corresponding light after optical fiber storage
Fibre progress is fixed to be made tight tube fiber, carries out fixed detection later, combines tight tube fiber to form corresponding tight tube fiber component,
The frame center of production later pipe, tight tube fiber component is placed on behind glass fiber yarn centre and extrudes one layer of lenticular LSZH sheath
Lenticular center tube boot is made, outer nurse's sequence is carried out later, in the equivalent outer ring of the convex portion of lenticular center tube boot
One layer of circle LSZH oversheath is extruded again after placing aramid fiber yarn outside face, and stranding is detected later.
It is further characterized by: the lenticular center tube boot is formed by the Mold Making of correspondingly-shaped, recessed
Male central tube jacket structure reduces contact area with oversheath, and improves to fixed protection, so that decaying has
Better stability；
The lenticular center tube boot complete to tight tube fiber component it is overmolded after, semi-finished product detection need to be carried out,
Subsequent outer nurse's sequence is carried out after detection is qualified.
After adopting the above technical scheme, the central tube of optical cable is lenticular central tube, reduce the contact area with outer shield,
And improve to fixed protection, decaying has better stability, which has structure letter compared with traditional dragging optical cable
It is single, easily fabricated, bending resistance is excellent, it is more soft, be easier to construction, feature at low cost；Central tube filling member is by glass fibre
Yarn is constituted, and on the basis of not influencing cable machinery performance and environmental performance, increases many performances such as mouse bite preventing of optical cable；It is recessed
The convex portion of male central tube is in close contact oversheath and the interval between adjacent convex portion forms inner groovy, bright
The aobvious resistance to side pressure performance for improving optical cable can adapt to use in communication base station, and optical cable is hardly damaged.
Detailed description of the invention
Fig. 1 is the main view schematic cross-sectional view of specific embodiments of the present invention；
Fig. 2 is fabrication processing block diagram of the invention；
Title corresponding to serial number is as follows in figure:
Tight tube fiber component 1, lenticular center tube boot 2, annular inner portion 21, convex portion 22, inner groovy 23, glass fibers
Tie up yarn 3, oversheath internal layer 4, oversheath 5, tight tube fiber 6, optical fiber 61, fixed material 62.
Specific embodiment
A kind of lenticular central tube dragging optical cable, is shown in Fig. 1: it includes tight tube fiber component 1, lenticular center tube boot
2, lenticular center tube boot 2 specifically include annular inner portion 21, periphery along radial equipartition contour convex portion 22, it is adjacent
Interval between convex portion 22 forms inner groovy 23, and tight tube fiber component 1 is located at the annular inner portion of lenticular center tube boot 2
21 center, the periphery of tight tube fiber component 1 and the inner wall of annular inner portion 21 are formed by between gap filled with glass fibers
Yarn 3 is tieed up, the combined equivalent outer ring surface formed of convex portion 22 is coated with oversheath internal layer 4, the periphery cladding of oversheath internal layer 4
There is oversheath 5.
Oversheath internal layer 4 is specially glass fiber yarn.
Tight tube fiber component 1 includes at least one tight tube fiber 6；
When tight tube fiber component 1 is a tight tube fiber 6, the periphery of tight tube fiber 6 is coated with cricoid glass fibre
The inner wall arrangement of annular inner portion 21 is close in yarn 3, the periphery of glass fiber yarn 3；
When tight tube fiber component 1 is at least two tight tube fibers 6, the twisted arrangement of tight tube fiber 6, the component being twisted
Periphery be coated with glass fiber yarn 3, the inner wall arrangement of annular inner portion 21 is close in the periphery of glass fiber yarn 3；
Optical fiber 61 in tight tube fiber 6 is single mode optical fiber or multimode fibre, outside single mode or multimode fibre 61 directly coated with
Tight tube fiber is made in the fixed material 62 of high bond strength；
Fixed material 62 is specially LSZH fire proofing.
In specific embodiment, the twisted arrangement of two tight tube fibers 6 forms tight tube fiber component 1, and tight tube fiber component 1 is located at
The center of the annular inner portion 21 of lenticular center tube boot 2, the periphery of tight tube fiber component 1 and the inner wall of annular inner portion 21
It is formed by between gap filled with glass fiber yarn 3, the combined equivalent outer ring surface formed of convex portion 22 is coated with aramid fiber fibre
Yarn is tieed up, aramid fiber yarn is oversheath internal layer 4, and the periphery of aramid fiber yarn is coated with oversheath 5；After oversheath 5 is overmolded
Global sections be circular configuration；Oversheath is specially LSZH fire proofing；Lenticular center tube boot 2 is specially LSZH fire-retardant
Material.
Optical cable be followed successively by from inside to outside tight tube fiber component, glass fiber yarn enhancement layer, lenticular central tube restrictive coating 2,
Aramid fiber yarn and round outer jacket stranding, the protective layer of tight tube fiber is fixed using LSZH, fixed small by extraneous influence power, declines
Subtract with stability, thermocycling can be born；The reinforcer of tight tube fiber periphery uses glass fiber yarn, low in cost
In the case where mechanical performance no less than aramid fiber yarn；Central tube can reduce center outer tube layer and outer using lenticular structure
The contact area of sheath internal layer, while ensure that the due performance of optical cable institute；
Lenticular central tube dragging optical cable provided by the invention, since the use characteristic of optical cable is suitble to outer use indoors,
LSZH fire proofing is used according to optical cable use environment, reaches fire-retardant and environmentally friendly performance requirement, effectively prevent using
It being influenced caused by environmental problem in journey, structure is simple, and it is light-weight, it is easy for construction quick, construction period greatly reduces and applies
Work cost.
A kind of manufacture craft of lenticular central tube dragging optical cable, is shown in Fig. 2: choosing corresponding optical fiber after optical fiber storage and carries out
It is fixed that tight tube fiber is made, fixed detection is carried out later, is combined tight tube fiber to form corresponding tight tube fiber component, be made later
Make frame center's pipe, tight tube fiber component is placed on behind glass fiber yarn centre extrude one layer of lenticular LSZH sheath be made it is recessed
Male center tube boot carries out outer nurse's sequence later, puts outside the equivalent outer ring surface of the convex portion of lenticular center tube boot
One layer of circle LSZH oversheath is extruded again after setting aramid fiber yarn, and stranding is detected later.
Lenticular center tube boot is formed by the Mold Making of correspondingly-shaped, and lenticular central tube jacket structure subtracts
The contact area with oversheath is lacked, and has improved to fixed protection, so that decaying has better stability；
Lenticular center tube boot complete to tight tube fiber component it is overmolded after, semi-finished product detection need to be carried out, detected
Subsequent outer nurse's sequence is carried out after qualification.
Construction period and construction cost greatly reduces in the technique, provides a kind of completely new solution for the development of access net
Scheme；It in the case where meeting identical laying environment, is designed by mechanics, can be less with expensive non-metallic fibers reinforcement material
The promotion and application of product provide power-assisted, and also cost basis has been established in the great development for China FTTx construction；Using lenticular
The design of central tube+internal layer high-density glass silvalin restrictive coating structure, has apparent mouse bite preventing performance, for FTTx construction
Popularization brings convenience；The heatproof of optical cable made of the technique requires to reach -40 DEG C -+80 DEG C, passes through IEC60332-1 single vertical
Combustion requirements are tested by the anti-UV of UL 1581.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (10)
1. a kind of lenticular central tube dragging optical cable, it is characterised in that: it includes that tight tube fiber component, lenticular center are managed and protected
Set, the lenticular center tube boot specifically include annular inner portion, periphery along radial equipartition contour convex portion, it is adjacent
Interval between convex portion forms inner groovy, and the tight tube fiber component is located at the internal ring portion of the lenticular center tube boot
The center divided, the periphery of the tight tube fiber component and the inner wall of the annular inner portion are formed by between gap filled with glass
Glass silvalin, the combined equivalent outer ring surface formed of the convex portion are coated with oversheath internal layer, the oversheath internal layer
Periphery is coated with oversheath.
2. a kind of lenticular central tube dragging optical cable as described in claim 1, it is characterised in that: the oversheath internal layer is specific
For glass fiber yarn.
3. a kind of lenticular central tube dragging optical cable as described in claim 1, it is characterised in that: the tight tube fiber component packet
Include at least one tight tube fiber.
4. a kind of lenticular central tube dragging optical cable as claimed in claim 3, it is characterised in that: when tight tube fiber component is one
When root tight tube fiber, the periphery of the tight tube fiber is coated with cricoid glass fiber yarn, and the periphery of the glass fiber yarn is tight
Paste the inner wall arrangement of the annular inner portion.
5. a kind of lenticular central tube dragging optical cable as claimed in claim 3, it is characterised in that: when tight tube fiber component is extremely
When few two tight tube fibers, the twisted arrangement of tight tube fiber, the periphery for the component being twisted is coated with glass fiber yarn, the glass
It is close to the inner wall arrangement of the annular inner portion in the periphery of glass silvalin.
6. a kind of lenticular central tube dragging optical cable as claimed in claim 3, it is characterised in that: the light in the tight tube fiber
Fibre is single mode optical fiber or multimode fibre, is directly made coated with the fixed material of high bond strength outside single mode or multimode fibre fixed
Optical fiber, the fixed material are specially LSZH fire proofing.
7. a kind of lenticular central tube dragging optical cable as described in claim 1, it is characterised in that: the oversheath is overmolded
Global sections afterwards are circular configuration；The oversheath is specially LSZH fire proofing；The lenticular center tube boot is specific
For LSZH fire proofing.
8. a kind of manufacture craft of lenticular central tube dragging optical cable, it is characterised in that: choose corresponding optical fiber after optical fiber storage
Carry out it is fixed tight tube fiber is made, carry out fixed detection later, combine tight tube fiber to form corresponding tight tube fiber component, it
Production frame center pipe afterwards, tight tube fiber component is placed on behind glass fiber yarn centre and extrudes one layer of lenticular LSZH sheath system
At lenticular center tube boot, outer nurse's sequence is carried out later, in the equivalent outer ring surface of the convex portion of lenticular center tube boot
One layer of circle LSZH oversheath is extruded after outer placement aramid fiber yarn again, stranding is detected later.
9. a kind of manufacture craft of lenticular central tube dragging optical cable as claimed in claim 8, it is characterised in that: the bumps
Formula center tube boot is formed by the Mold Making of correspondingly-shaped.
10. a kind of manufacture craft of lenticular central tube dragging optical cable as claimed in claim 8, it is characterised in that: described recessed
Male center tube boot complete to tight tube fiber component it is overmolded after, need to carry out semi-finished product detection, be carried out after detection is qualified
Subsequent outer nurse's sequence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910359006.0A CN109975936A (en) | 2019-04-30 | 2019-04-30 | A kind of lenticular central tube dragging optical cable and its corresponding manufacture craft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910359006.0A CN109975936A (en) | 2019-04-30 | 2019-04-30 | A kind of lenticular central tube dragging optical cable and its corresponding manufacture craft |
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| Publication Number | Publication Date |
|---|---|
| CN109975936A true CN109975936A (en) | 2019-07-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910359006.0A Withdrawn CN109975936A (en) | 2019-04-30 | 2019-04-30 | A kind of lenticular central tube dragging optical cable and its corresponding manufacture craft |
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| CN (1) | CN109975936A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110850542A (en) * | 2019-12-05 | 2020-02-28 | 深圳市特发信息光网科技股份有限公司 | Gear-shaped central tube type remote optical cable and preparation method thereof |
-
2019
- 2019-04-30 CN CN201910359006.0A patent/CN109975936A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110850542A (en) * | 2019-12-05 | 2020-02-28 | 深圳市特发信息光网科技股份有限公司 | Gear-shaped central tube type remote optical cable and preparation method thereof |
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Application publication date: 20190705 |
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