CN106443921A - Flat multi-cavity branched optical cable and manufacture method thereof - Google Patents
Flat multi-cavity branched optical cable and manufacture method thereof Download PDFInfo
- Publication number
- CN106443921A CN106443921A CN201610960169.0A CN201610960169A CN106443921A CN 106443921 A CN106443921 A CN 106443921A CN 201610960169 A CN201610960169 A CN 201610960169A CN 106443921 A CN106443921 A CN 106443921A
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- CN
- China
- Prior art keywords
- core rod
- hollow pipe
- reinforcement
- flat
- oversheath
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Classifications
-
- 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
-
- 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
- G02B6/443—Protective covering
- G02B6/4432—Protective covering with fibre reinforcements
-
- 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
- G02B6/4479—Manufacturing methods of optical cables
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The invention relates to a flat branched optical cable and a manufacture method thereof. The optical cable comprises an outer sheath and an optical fiber sleeved in the outer sheath. The optical cable is characterized in that the outer sheath is flat; upper and lower hollow pipes are formed in the middle inside the flat outer sheath along the long axis direction and are arranged alternately in parallel, and 2-4 hollow pipes are arranged in each row; optical fibers are sleeved in the hollow pipes in a loose manner; and reinforcers are respectively arranged in parallel on two sides in the flat outer sheath. The flat multi-cavity branched optical cable can be easily peeled and branched from the flat side, can be easily bent, and has strong stress tolerance; the sheath is made of the hollow pipes and materials with low friction coefficients, and the optical fibers and the hollow pipes have a large duty cycle, so that the optical fibers requiring branching can be extracted and branched from the sheath for a long distance, and the rest optical fibers can be laid forward along the optical cable, so that the cable laying efficiency can be improved. The flat multi-cavity branched optical cable has the advantages of simple and reasonable structure arrangement, one-step manufactured sheath, low manufacture cost and light weight, is easy to branch and lay, and has relatively strong tensile resistance and stress tolerance.
Description
Technical field
The present invention relates to a kind of flat multi-cavity branched cable and its manufacture method.
Background technology
The Internet+background under, outdoor leading in cable has swift and violent demand, domestic at present conventional mode be rubber insulated cable
Built on stilts register one's residence or common GYTA/S optical cable is maked somebody a mere figurehead and registered one's residence, in the structure of these optical cables, optical fiber and sheath are tightly combined, and branch is tired
Difficulty, particularly when each household needs 1 to 2 fiber entering households, needs to interrupt other optical fiber and carries out branch's welding, high cost, efficiency
Low, requiring frequently to be branched off into the application scenarios at family, the problems referred to above are especially notable, bringing inconvenience to the branch of laying of optical fiber.
Content of the invention
The technical problem to be solved is to provide one kind flat for the deficiency that above-mentioned prior art exists
Multi-cavity branched cable and its manufacture method, this optical cable is not only simple in structure, fine capacity big it is easy to branch and laying, and mechanical
Performance is good.
The present invention is that the optical cable technology scheme solving the above problems adopted is：Include oversheath and be sleeved on oversheath
In optical fiber it is characterised in that described oversheath is pancake, in pancake oversheath in the middle of be formed with along long axis direction
The hollow pipe of two rows parallel interval arrangement, often arranges 2 ~ 4 hollow pipes of setting, in hollow pipe, pine is cased with optical fiber, in pancake
In oversheath, both sides are parallel respectively installs reinforcement.
By such scheme, described oversheath outer layer is hard high-density polyethylene layer, described hard high-density polyethylene
The case hardness of alkene layer is more than or equal to 56 ~ 60 degree of Shore hardness.
By such scheme, it is 0.2 ~ 05mm that described hard high-density polyethylene layer obtains one-sided thickness；In oversheath outer layer
The side of flat horizontal surface is provided with side labelling.
By such scheme, described pancake is long kidney ellipsoid or ellipse, and described hollow pipe is symmetrical above and below along major axis
Or be crisscross arranged.
By such scheme, in each described hollow pipe, fiber number is 1 ~ 24 core, the duty between optical fiber and hollow pipe
Than for 10 ~ 60%.
By such scheme, in described hollow pipe, it is placed with water blocking yarn or water-proofing powder, constitute Full-dry optical cable.
By such scheme, the coefficient of friction of described hollow tube wall is less than 0.3.
By such scheme, described reinforcement is non-metal reinforcement member (FRP) or metal reinforcement.
By such scheme, the minimum one-sided thickness of described hollow tube wall is 0.3 ~ 1.2mm, hollow tube wall and reinforcement
Minimum interval thickness between part is 0.2 ~ 1mm.
The technical scheme of optical cable manufacture method is：
The optical fiber of coloring is pressed hollow pipe quantity share split and two reinforcements release with constant tension force, by the rear guiding of core rod
Pipe, through sheath mould, extrudes oversheath with extruding machine, and reinforcement is in squeezed state in core rod head, by position
Design makes reinforcement tightly be embedded in oversheath, and hollow pipe is formed by core rod conduit, is adjusted by controlling core rod internal gas pressure
The internal diameter of whole hollow pipe, optical fiber is penetrated core rod conduit by guide wire after core rod, suitably adjusts air pressure, reaches required hollow pore
Footpath, the optical cable after depanning, through cooling and shaping device, blow-dry device, winds on take-up reel.
By such scheme, water blocking yarn is penetrated core rod together in company with optical fiber.
By such scheme, described sheath mould is that half half is crowded exempts to adjust concentric mould, is wherein light in the middle of core rod
Fine guide wire, after the completion of assembling, its guiding tube exit end face and die cap end face are substantially flush, and form trombone slide pattern, core rod both sides
With a certain distance from having from die cap end face after the completion of the assembling of reinforcement hole exits, form squeeze mode, by controlling reinforcement hole and drawing
Spacing between conduit, to ensure that reinforcement is embedded in sheath, core rod back seat is furnished with guided mode, is guided by guided mode and adds
Strong part and optical fiber penetrate core rod, and after core rod and core rod, guided mode forms the cavity of relative closure, and core rod back seat is furnished with pore, lead to
Cross connection air valve, adjusting gas flow is controlling the internal diameter of optical cable hollow pipe.
The invention has the beneficial effects as follows：1st, flat outer jacket structure is so that optical cable is easily from flat sides stripping and branch, stripping
When not easy damaged optical fiber, and optical cable be readily bent, anti-pressure ability strong；2nd, sheath adopts hollow pipe and low friction coefficient materials, light
Fine exist compared with big space rate with hollow pipe it is ensured that need branch optical fiber can longer-range be liftoff extracts branch in sheath,
And remaining optical fiber can continue to lay forward with cable, improve optical cable lays efficiency；3rd, two reinforcements are set, outside oversheath
Layer is hard high-density polyethylene layer, makes optical cable possess stronger tension and compressive property；4th, in present invention setting two row 2 ~ 4
Blank pipe, fine capacity is larger, does not affect other hollow pipes after a hollow pipe stripping branch, is conducive to the protection of optical cable and continues
Connect；5th, present configuration setting advantages of simple, sheath make one-shot forming, low manufacture cost, lightweight it is easy to branch and apply
If.
Brief description
Fig. 1 is the radial structure profile of one optical cable embodiment of the present invention.
Fig. 2 is the cross section structure diagram of mould in manufacture method of the present invention.
Specific embodiment
Further illustrate embodiments of the invention below in conjunction with the accompanying drawings.
The example structure of one dry type flat drop optical cable of the present invention is as shown in figure 1, include the outer of long kidney ellipsoid
Sheath 1, described oversheath outer layer is hard high-density polyethylene layer, the case hardness of described hard high-density polyethylene layer
More than or equal to 58 degree of Shore hardness, it is 0.3mm that hard high-density polyethylene layer obtains one-sided thickness, in oversheath outer layer flat horizontal surface
Side be provided with side labelling, side labelling can be raised line or groove, or colour band.In oversheath, intermediate formation has two rows to put down
3 hollow pipes 3 of row arrangement, hollow pipe is circular hollow pipe, and pipe friction coefficient is less than 0.3.In hollow pipe, pine is cased with optical fiber
4, described fiber number is 2 cores, and the dutycycle between optical fiber and hollow pipe is 50%.Resistance can be placed with described hollow pipe
Water yarn.In kidney ellipsoid oversheath, both sides are installed respectively and are inlayed reinforcement 2, and reinforcement is paralleled with hollow pipe, described reinforcement
Part is non-metal reinforcement member (FRP) or braided wires.The minimum one-sided thickness of described hollow tube wall is 0.5mm, hollow pipe
Minimum interval thickness between tube wall and reinforcement is 0.3mm.
Optical cable adopts one-time formed production method as follows：The optical fiber of coloring is divided into 6 strands and two reinforcements
Released with constant tension force, sheath mould is passed through by the rear guide wire of core rod, water blocking yarn penetrates mould together in company with optical fiber
Core, at the uniform velocity to front haulage, extrudes oversheath with extruding machine, reinforcement is in squeezed state in core rod head, sets by position
Meter makes reinforcement tightly be embedded in oversheath, and hollow pipe is formed by core rod conduit, is adjusted by controlling core rod internal gas pressure
The internal diameter of hollow pipe, optical fiber is penetrated core rod conduit by guide wire after core rod, suitably adjusts air pressure, reaches required hollow pore
Footpath, the optical cable after depanning, through cooling and shaping device, blow-dry device, winds on take-up reel.Described sheath mould is
Half half squeezes exempts to adjust concentric mould, including core rod 5, die cap 6, rear guide wire 7, for the guide wire of optical fiber wherein in the middle of core rod, dress
After the completion of joining, its guiding tube exit end face and die cap end face are substantially flush, and form trombone slide pattern, core rod both sides reinforcement hole exits
With a certain distance from having from die cap end face after the completion of assembling, form squeeze mode, by controlling the spacing between reinforcement hole and guiding tube,
To ensure that reinforcement is embedded in sheath, core rod back seat to be furnished with guided mode, guides by guided mode reinforcement and optical fiber to wear
Enter core rod, after core rod and core rod, guided mode forms the cavity of relative closure, and core rod back seat is furnished with pore, by connecting air valve,
Adjusting gas flow is controlling the internal diameter of optical cable hollow pipe.
Claims (10)
1. a kind of flat multi-cavity branched cable, includes oversheath and the optical fiber that is sleeved in oversheath it is characterised in that institute
The oversheath stated is pancake, and in pancake oversheath, centre is formed with the arrangement of two rows parallel interval along long axis direction
Hollow pipe, often arranges 2 ~ 4 hollow pipes of setting, in hollow pipe, pine is cased with optical fiber, both sides parallel peace respectively in pancake oversheath
If reinforcement.
2. the flat multi-cavity branched cable as described in claim 1 is it is characterised in that described oversheath outer layer is hard height
Density polyethylene, the case hardness of described hard high-density polyethylene layer is more than or equal to 56 ~ 60 degree of Shore hardness.
3. the flat multi-cavity branched cable as described in claim 2 is it is characterised in that described hard high-density polyethylene layer
One-sided thickness be 0.2 ~ 05mm；The side of oversheath outer layer flat horizontal surface is provided with side labelling.
4. the flat multi-cavity branched cable as described in claim 1 or 2 is it is characterised in that described pancake is long kidney ellipsoid
Or oval, described hollow pipe is symmetrical above and below or be crisscross arranged along major axis.
5. the flat multi-cavity branched cable as described in claim 1 or 2 is it is characterised in that optical fiber in described each hollow pipe
Core number is 1-24 core, and the dutycycle between optical fiber and hollow pipe is 10 ~ 60%.
6. the flat multi-cavity branched cable as described in claim 1 or 2 is it is characterised in that be placed with resistance in described hollow pipe
Water yarn or water-proofing powder, constitute Full-dry optical cable.
7. the flat multi-cavity branched cable as described in claim 1 or 2 is it is characterised in that the friction system of described hollow tube wall
Number is less than 0.3.
8. the flat multi-cavity branched cable as described in claim 1 or 2 is it is characterised in that described reinforcement is nonmetallic adding
Strong part or metal reinforcement；The minimum one-sided thickness of described hollow tube wall is 0.3 ~ 1.2mm, hollow tube wall and reinforcement
Between minimum interval thickness be 0.2 ~ 1mm.
9. in a kind of claim 1-8 arbitrary flat multi-cavity branched cable manufacture method it is characterised in that will coloring light
Fibre is pressed hollow pipe quantity share split and two reinforcements and is released with constant tension force, passes through sheath molding by the rear guide wire of core rod
Mould, extrudes oversheath with extruding machine, and reinforcement is in squeezed state in core rod head, makes reinforcement tight by Position Design
Tightly it is embedded in oversheath, hollow pipe is formed by core rod conduit, adjust the internal diameter of hollow pipe by controlling core rod internal gas pressure,
Optical fiber is penetrated core rod conduit by guide wire after core rod, suitably adjusts air pressure, reach required hollow pipe aperture, the optical cable after depanning
Through cooling and shaping device, blow-dry device, wind on take-up reel.
10. the manufacture method of the flat multi-cavity branched cable as described in claim 9 is it is characterised in that described sheath molding
Mould is that half half is crowded exempts to adjust concentric mould, for the guide wire of optical fiber wherein in the middle of core rod, its guiding tube outlet after the completion of assembling
End face is substantially flush with die cap end face, forms trombone slide pattern, from die cap end face after the completion of the assembling of core rod both sides reinforcement hole exits
There is certain distance to form squeeze mode, by controlling the spacing between reinforcement hole and guiding tube, to ensure that reinforcement is embedded in shield
In set, core rod back seat is furnished with guided mode, guides by guided mode reinforcement and optical fiber to penetrate core rod, lead after core rod and core rod
Draw the cavity that mould forms relative closure, core rod back seat is furnished with pore, by connecting air valve, adjusting gas flow is controlling optical cable
The internal diameter of hollow pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610960169.0A CN106443921A (en) | 2016-11-04 | 2016-11-04 | Flat multi-cavity branched optical cable and manufacture method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610960169.0A CN106443921A (en) | 2016-11-04 | 2016-11-04 | Flat multi-cavity branched optical cable and manufacture method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106443921A true CN106443921A (en) | 2017-02-22 |
Family
ID=58179779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610960169.0A Pending CN106443921A (en) | 2016-11-04 | 2016-11-04 | Flat multi-cavity branched optical cable and manufacture method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106443921A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108614338A (en) * | 2018-06-30 | 2018-10-02 | 法尔胜泓昇集团有限公司 | - kind of indoor external application rounded groove optical cable and its manufacturing method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101167143A (en) * | 2005-04-29 | 2008-04-23 | 尼克桑斯公司 | Unsheilded twisted pair cable and method for manufacturing the same |
| CN202075471U (en) * | 2011-05-14 | 2011-12-14 | 湖北凯乐科技股份有限公司 | Adjustable catheter type extrusion mold for butterfly form optical cable |
| CN202256798U (en) * | 2011-08-31 | 2012-05-30 | 李泱 | Flat type sensing optical cable |
| CN204666879U (en) * | 2015-04-22 | 2015-09-23 | 佛山市顺德区广意通讯电缆有限公司 | A kind of 8-shaped optical cable half squash type extrusion die |
-
2016
- 2016-11-04 CN CN201610960169.0A patent/CN106443921A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101167143A (en) * | 2005-04-29 | 2008-04-23 | 尼克桑斯公司 | Unsheilded twisted pair cable and method for manufacturing the same |
| CN202075471U (en) * | 2011-05-14 | 2011-12-14 | 湖北凯乐科技股份有限公司 | Adjustable catheter type extrusion mold for butterfly form optical cable |
| CN202256798U (en) * | 2011-08-31 | 2012-05-30 | 李泱 | Flat type sensing optical cable |
| CN204666879U (en) * | 2015-04-22 | 2015-09-23 | 佛山市顺德区广意通讯电缆有限公司 | A kind of 8-shaped optical cable half squash type extrusion die |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108614338A (en) * | 2018-06-30 | 2018-10-02 | 法尔胜泓昇集团有限公司 | - kind of indoor external application rounded groove optical cable and its manufacturing method |
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Application publication date: 20170222 |