CN108614337A - A kind of high-flexibility two-layer equation optical cable - Google Patents
A kind of high-flexibility two-layer equation optical cable Download PDFInfo
- Publication number
- CN108614337A CN108614337A CN201810693125.5A CN201810693125A CN108614337A CN 108614337 A CN108614337 A CN 108614337A CN 201810693125 A CN201810693125 A CN 201810693125A CN 108614337 A CN108614337 A CN 108614337A
- Authority
- CN
- China
- Prior art keywords
- layer
- loose tube
- fiber
- optical fiber
- flexibility
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
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
- 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
- G02B6/4401—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
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/4434—Central member to take up tensile loads
-
- 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
- G02B6/4436—Heat resistant
-
- 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
- G02B6/44384—Means specially adapted for strengthening or protecting the cables the means comprising water blocking or hydrophobic materials
Abstract
The invention discloses a kind of high-flexibility two-layer equation optical cables, including the first optical fiber layer, the second optical fiber layer, fire-retardant inner restrictive coating, elastic layer, waterproof layer, adhesive layer and the external sheath layer set gradually from the inside to the outside；First optical fiber layer includes centrally disposed non-metal reinforcement member, and being twisted on non-metal reinforcement member has the first fiber unit, filled with water blocking yarn in the gap between the first fiber unit；Second optical fiber layer includes the second fiber unit being stranded on the outside of the first optical fiber layer；First fiber unit includes the first Loose tube, and the outer surface of the first Loose tube is equipped with equally distributed arc concave shape, the Kafra fiber being circumferentially distributed is embedded in the sleeve wall of the first Loose tube；Second fiber unit includes the outer Loose tube, elastic layer and interior Loose tube set gradually from outside to inside, and elastic layer is the Kafra fiber between outer Loose tube and interior Loose tube.The present invention has the advantages that flexibility is good, elasticity is good, with long service life.
Description
Technical field
The present invention relates to a kind of two-layer equation optical cable, especially a kind of high-flexibility two-layer equation optical cable.
Background technology
The fast development of the network technology is also required to constantly reform to adapt to various letters using optical cable as the electronic wire of representative
Transmission requirement is ceased, with the requirement to conveying capacity and transmission speed, the optical cable of Multi-core number more adapts to current demand, two-layer equation light
Cable appears in electronic wire market like the mushrooms after rain；But at present the manufacturing technology of two-layer equation optical cable with respect to single-layer type also still
It is immature, it can not be bonded well between two layers of optical cable, it may appear that local displacement, it is ineffective to internal fiber optic protection, it influences
Properties of optical fiber cable and service life are used since fiber optic cable manufacture cost is higher in order to meet for a long time, and the outer layer of optical cable often uses
Reinforcement material, the flexibility for meeting optical cable after structural strength is often inadequate, and aging and fracture are easy to happen after long-time use,
Existing optical cable elasticity is poor, can not be in some special mounting location installations.Therefore, there are flexible for existing two-layer equation optical cable
The short problem of the poor, poor flexibility of property, service life.
Invention content
The object of the present invention is to provide a kind of high-flexibility two-layer equation optical cables.It is good with flexibility, elasticity is good, makes
The advantages of with long lifespan.
Technical scheme of the present invention：A kind of high-flexibility two-layer equation optical cable, including the first light for setting gradually from the inside to the outside
Fine layer, the second optical fiber layer, fire-retardant inner restrictive coating, elastic layer, waterproof layer, adhesive layer and external sheath layer；The first optical fiber layer packet
Centrally disposed non-metal reinforcement member is included, being twisted on non-metal reinforcement member has the first fiber unit, between the first fiber unit
Gap in be filled with water blocking yarn；Second optical fiber layer includes the second fiber unit being stranded on the outside of the first optical fiber layer；Institute
It includes the first Loose tube to state the first fiber unit, and optical fiber is equipped in the first Loose tube, and the outer surface of the first Loose tube is equipped with uniformly
The arc concave shape of distribution is embedded with the Kafra fiber being circumferentially distributed in the sleeve wall of the first Loose tube；Second optical fiber
Unit includes the outer Loose tube, elastic layer and interior Loose tube set gradually from outside to inside, and optical fiber, elastic layer are equipped in interior Loose tube
For the Kafra fiber between outer Loose tube and interior Loose tube.
In a kind of high-flexibility two-layer equation optical cable above-mentioned, the first Loose tube outer surface where the arc concave shape is equipped with
Linear non-slip texture.
In a kind of high-flexibility two-layer equation optical cable above-mentioned, the outer surface of the outer Loose tube is equipped with spiral helicine tread plate
Line.
In a kind of high-flexibility two-layer equation optical cable above-mentioned, heat-insulating flame-retardant strip is equipped in the fire-retardant inner restrictive coating.
In a kind of high-flexibility two-layer equation optical cable above-mentioned, the outer surface of the non-metal reinforcement member is equipped with polyethylene layer.
In a kind of high-flexibility two-layer equation optical cable above-mentioned, the waterproof layer is the waterproof yarn on the outside of elastic layer
Band.
In a kind of high-flexibility two-layer equation optical cable above-mentioned, first fiber unit and the second fiber unit inner fiber it
Between gap filling have fiber paste.
In a kind of high-flexibility two-layer equation optical cable above-mentioned, the gap in second optical fiber layer between the second fiber unit
Filled with cable cream.
Compared with prior art, the present invention is equipped with the first optical fiber layer, the second optical fiber layer, fire-retardant inner sheath successively from the inside to the outside
Layer, elastic layer, waterproof layer, adhesive layer and external sheath layer；Wherein, the first optical fiber layer includes centrally disposed nonmetallic reinforcement
Part, it includes second be stranded on the outside of the first optical fiber layer that being twisted on non-metal reinforcement member, which has the first fiber unit, the second optical fiber layer,
Fiber unit, the design of two-layer optical fiber meet the requirement of Multi-core number optical cable, the sleeve of the first Loose tube of the first fiber unit
The Kafra fiber being circumferentially distributed is embedded in wall, the elastic layer of the second fiber unit is to be covered around outer Loose tube and interior pine
Kafra fiber between pipe meets the elasticity and flexibility of the first optical fiber layer and the second optical fiber layer internal optical fiber unit, with light
Elastic layer on the outside of fine layer matches, and further increases the elasticity and flexibility of the present invention, makes after optical cable long-time use not
Easy fracture improves the service life of optical cable.
The outer surface of first Loose tube of the first fiber unit is equipped with equally distributed arc concave shape, where arc concave shape
First Loose tube outer surface is equipped with linear non-slip texture, and the outer surface of the outer Loose tube of the second fiber unit is equipped with helical form
Skid resistance strip, make inside the present invention that fitting is even closer, displacement is less likely to occur internal optical fiber unit in use, right
The protecting effect of internal optical fiber is good, is conducive to the performance and service life that improve optical fiber；Fire-retardant interior shield on the outside of second optical fiber layer
It is equipped with heat-insulating flame-retardant strip in jacket layer, heat-insulating flame-retardant can be played the role of, improves the safety that optical cable uses.
In addition, being filled with water blocking yarn in gap between the first fiber unit, water blocking yarn had both been filled with the first fiber unit
Between gap play waterproof action again, on the outside of optical fiber layer waterproof layer coordinate, further improve the present invention waterproof energy
Power.
To sum up, the present invention has the advantages that flexibility is good, elasticity is good, with long service life.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention；
Fig. 2 is the structural schematic diagram of the first optical fiber layer；
Fig. 3 is the structural schematic diagram of the first fiber unit；
Fig. 4 is the structural schematic diagram of the second fiber unit.
Label in attached drawing be：The first optical fiber layers of 1-, the second optical fiber layers of 2-, the fire-retardant inner restrictive coatings of 3-, 4- elastic layers, 5- are anti-
Water layer, 6- adhesive layers, 7- external sheath layers, 11- non-metal reinforcement members, the first fiber units of 12-, 13- water blocking yarns, the second light of 21-
Fine unit, 31- heat-insulating flame-retardant strips, 111- polyethylene layers, the first Loose tubes of 121-, 122- arc concave shapes, the outer Loose tubes of 211-,
212- elastic layers, Loose tube in 213-.
Specific implementation mode
The present invention is further illustrated with reference to the accompanying drawings and examples, but be not intended as to the present invention limit according to
According to.
Embodiment：A kind of high-flexibility two-layer equation optical cable, structure is as shown in Figures 1 to 4, including sets gradually from the inside to the outside
The first optical fiber layer 1, the second optical fiber layer 2, fire-retardant inner restrictive coating 3, elastic layer 4, waterproof layer 5, adhesive layer 6 and external sheath layer 7；Institute
It includes centrally disposed non-metal reinforcement member 11 to state the first optical fiber layer 1, and being twisted on non-metal reinforcement member 11 has the first optical fiber list
Member 12, filled with water blocking yarn 13 in the gap between the first fiber unit 12；Second optical fiber layer 2 includes being stranded in the first light
Second fiber unit 21 in 1 outside of fine layer；First fiber unit 12 includes the first Loose tube 121, in the first Loose tube 121
Equipped with optical fiber, the outer surface of the first Loose tube 121 is equipped with equally distributed arc concave shape 122, the sleeve wall of the first Loose tube 121
Inside it is embedded with the Kafra fiber being circumferentially distributed；Second fiber unit 21 includes the outer pine set set gradually from outside to inside
Pipe 211, elastic layer 212 and interior Loose tube 213, interior Loose tube 213 is interior to be equipped with optical fiber, and elastic layer 212 is around outer Loose tube
Kafra fiber between 211 and interior Loose tube 213.
121 outer surface of the first Loose tube where the arc concave shape 122 is equipped with linear non-slip texture.
The outer surface of the outer Loose tube 211 is equipped with spiral helicine skid resistance strip.
Heat-insulating flame-retardant strip 31 is equipped in the fire-retardant inner restrictive coating 3.
The outer surface of the non-metal reinforcement member 11 is equipped with polyethylene layer 111.
The waterproof layer 5 is the waterproof cotton yarn tape around 4 outside of elastic layer.
Gap filling between first fiber unit, 12 and second fiber unit, 21 inner fiber has fiber paste.
Gap filling in second optical fiber layer 2 between second fiber unit 21 has cable cream.
The elastic layer 4 includes the high intensity aramid yarn that 3 outer surface of fire-retardant inner restrictive coating is wrapped in double thread structure
And elastomer, while meeting the intensity and aeroelastic requirements of optical cable.
It is equipped with tear rope between the elastic layer 4 and waterproof layer 5, improves the lear energy of optical cable.
The outer surface of the external sheath layer 7 is equipped with vitta, and the present invention is allow to be more prone to identified and classification.
The present invention from the inside to the outside successively be equipped with the first optical fiber layer 1, the second optical fiber layer 2, fire-retardant inner restrictive coating 3, elastic layer 4,
Waterproof layer 5, adhesive layer 6 and external sheath layer 7；Wherein, the first optical fiber layer 1 includes centrally disposed non-metal reinforcement member 11, non-
Being twisted on metal reinforcement 11 has the first fiber unit 12, and the second optical fiber layer 2 includes be stranded in 1 outside of the first optical fiber layer second
Fiber unit 21, the design of two-layer optical fiber meet the requirement of Multi-core number optical cable, the first Loose tube 121 of the first fiber unit 12
Sleeve wall in be embedded with the Kafra fiber being circumferentially distributed, the elastic layer 212 of the second fiber unit 21 is around outer pine
Kafra fiber between casing 211 and interior Loose tube 213 meets the first optical fiber layer 1 and 2 internal optical fiber unit of the second optical fiber layer
Elasticity and flexibility, matched with the elastic layer 4 on the outside of optical fiber layer, further increase the present invention elasticity and flexibility,
So that optical cable is used for a long time rear not easy to break, improves the service life of optical cable；First Loose tube 121 of the first fiber unit 12
Outer surface be equipped with equally distributed arc concave shape 122,121 outer surface of the first Loose tube where arc concave shape 122 is equipped with straight
The outer surface of the non-slip texture of line style, the outer Loose tube 211 of the second fiber unit 21 is equipped with spiral helicine skid resistance strip, makes this hair
Bright internal fitting is even closer, and displacement is less likely to occur internal optical fiber unit in use, is imitated to the protection of internal optical fiber
Fruit is good, is conducive to the performance and service life that improve optical fiber；It is equipped in the fire-retardant inner restrictive coating 3 in 2 outside of the second optical fiber layer heat-insulated
Fire-retardant strip 31 can play the role of heat-insulating flame-retardant, improve the safety that optical cable uses；In addition, the first fiber unit 12 it
Between gap in be filled with water blocking yarn 13, water blocking yarn 13 be not only filled with the gap between the first fiber unit 12 and play waterproof make
With the cooperation of waterproof layer 5 on the outside of optical fiber layer further improves the waterproof ability of the present invention.
Claims (8)
1. a kind of high-flexibility two-layer equation optical cable, it is characterised in that：Including set gradually from the inside to the outside the first optical fiber layer (1),
Second optical fiber layer (2), fire-retardant inner restrictive coating (3), elastic layer (4), waterproof layer (5), adhesive layer (6) and external sheath layer (7)；It is described
First optical fiber layer (1) includes centrally disposed non-metal reinforcement member (11), and being twisted on non-metal reinforcement member (11) has the first light
Fine unit (12) is filled with water blocking yarn (13) in the gap between the first fiber unit (12)；Second optical fiber layer (2) includes
The second fiber unit (21) being stranded on the outside of the first optical fiber layer (1)；First fiber unit (12) includes the first Loose tube
(121), optical fiber is equipped in the first Loose tube (121), the outer surface of the first Loose tube (121) is equipped with equally distributed arc concave shape
(122), it is embedded with the Kafra fiber being circumferentially distributed in the sleeve wall of the first Loose tube (121)；Second fiber unit
(21) include the outer Loose tube (211), elastic layer (212) and interior Loose tube (213) set gradually from outside to inside, interior Loose tube
(213) optical fiber is equipped in, elastic layer (212) is that the Kev between outer Loose tube (211) and interior Loose tube (213) is towed
Dimension.
2. a kind of high-flexibility two-layer equation optical cable according to claim 1, it is characterised in that：The arc concave shape (122)
First Loose tube (121) outer surface at place is equipped with linear non-slip texture.
3. a kind of high-flexibility two-layer equation optical cable according to claim 1, it is characterised in that：The outer Loose tube (211)
Outer surface be equipped with spiral helicine skid resistance strip.
4. a kind of high-flexibility two-layer equation optical cable according to claim 1, it is characterised in that：The fire-retardant inner restrictive coating
(3) heat-insulating flame-retardant strip (31) is equipped in.
5. a kind of high-flexibility two-layer equation optical cable according to claim 1, it is characterised in that：The non-metal reinforcement member
(11) outer surface is equipped with polyethylene layer (111).
6. a kind of high-flexibility two-layer equation optical cable according to claim 1, it is characterised in that：The waterproof layer (5) be around
Wrap the waterproof cotton yarn tape on the outside of elastic layer (4).
7. a kind of high-flexibility two-layer equation optical cable according to claim 1, it is characterised in that：First fiber unit
(12) gap filling between the second fiber unit (21) inner fiber has fiber paste.
8. a kind of high-flexibility two-layer equation optical cable according to claim 1, it is characterised in that：Second optical fiber layer (2)
Gap filling between interior second fiber unit (21) has cable cream.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810693125.5A CN108614337A (en) | 2018-06-29 | 2018-06-29 | A kind of high-flexibility two-layer equation optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810693125.5A CN108614337A (en) | 2018-06-29 | 2018-06-29 | A kind of high-flexibility two-layer equation optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108614337A true CN108614337A (en) | 2018-10-02 |
Family
ID=63665927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810693125.5A Withdrawn CN108614337A (en) | 2018-06-29 | 2018-06-29 | A kind of high-flexibility two-layer equation optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108614337A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113655581A (en) * | 2021-10-21 | 2021-11-16 | 长飞光纤光缆股份有限公司 | Large-core-number flexible optical fiber ribbon optical cable and middle sheath processing device thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101881868A (en) * | 2010-05-03 | 2010-11-10 | 蒋菊生 | Layer stranded type optical cable with three-layer loose tubes |
| CN202383339U (en) * | 2011-12-27 | 2012-08-15 | 浙江汉信光缆有限公司 | Loosely shielded layer-stranding cable |
| US20130077922A1 (en) * | 2011-09-26 | 2013-03-28 | Peter A. Weimann | Double jacket optical fiber cables |
| CN104166202A (en) * | 2014-09-02 | 2014-11-26 | 中天科技装备电缆有限公司 | High-performance soft-type cable-carrier optical cable and manufacturing method of high-performance soft-type cable-carrier optical cable |
| CN206906663U (en) * | 2017-07-31 | 2018-01-19 | 浙江亨通光网物联科技有限公司 | Nonmetallic leading in cable |
-
2018
- 2018-06-29 CN CN201810693125.5A patent/CN108614337A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101881868A (en) * | 2010-05-03 | 2010-11-10 | 蒋菊生 | Layer stranded type optical cable with three-layer loose tubes |
| US20130077922A1 (en) * | 2011-09-26 | 2013-03-28 | Peter A. Weimann | Double jacket optical fiber cables |
| CN202383339U (en) * | 2011-12-27 | 2012-08-15 | 浙江汉信光缆有限公司 | Loosely shielded layer-stranding cable |
| CN104166202A (en) * | 2014-09-02 | 2014-11-26 | 中天科技装备电缆有限公司 | High-performance soft-type cable-carrier optical cable and manufacturing method of high-performance soft-type cable-carrier optical cable |
| CN206906663U (en) * | 2017-07-31 | 2018-01-19 | 浙江亨通光网物联科技有限公司 | Nonmetallic leading in cable |
Non-Patent Citations (1)
| Title |
|---|
| 何建新: "《新型纤维材料学》", 31 July 2014, 东华大学出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113655581A (en) * | 2021-10-21 | 2021-11-16 | 长飞光纤光缆股份有限公司 | Large-core-number flexible optical fiber ribbon optical cable and middle sheath processing device thereof |
| CN113655581B (en) * | 2021-10-21 | 2022-02-18 | 长飞光纤光缆股份有限公司 | Large-core-number flexible optical fiber ribbon optical cable and middle sheath processing device thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202258456U (en) | Flexible cable used for novel tensile coal mining machine | |
| CN204720192U (en) | A kind of computer lightweight flexible cable | |
| CN108614337A (en) | A kind of high-flexibility two-layer equation optical cable | |
| CN203910320U (en) | Cold-resistant, twist-resistant and flame-retardant wind energy power cable | |
| CN206649924U (en) | A kind of direct current charging cable for electric automobile | |
| CN205692592U (en) | Double shield flexibility new forms of energy car inner high voltage cable | |
| CN212809870U (en) | Reinforced waterproof cable | |
| CN205656899U (en) | Compound environmental protection cable of multipurpose | |
| CN214796831U (en) | Environment-friendly shielding control cable | |
| CN208315235U (en) | A kind of flat mine cable | |
| CN207992521U (en) | A kind of indoor and outdoor leading in cable with stainless steel spiral armouring | |
| CN206833961U (en) | A kind of novel cable | |
| CN205508447U (en) | Cable for harbour machinery | |
| CN206163154U (en) | Safe and reliable's mining special cable | |
| CN218568475U (en) | Power cable | |
| CN206619414U (en) | A kind of new energy vehicle charging cable | |
| CN211719302U (en) | Composite cable with strong anti-extrusion capacity | |
| CN211062485U (en) | Core-breaking-preventing flexible cable for coal mine coal mining machine | |
| CN217982877U (en) | Anti-bending and wear-resistant flexible cable for coal mine mining machine | |
| CN210349343U (en) | Flexible towline cable | |
| CN213424632U (en) | Medium-voltage reel photoelectric composite flexible cable | |
| CN210271857U (en) | High-altitude cable convenient to deicing is cold-resistant | |
| CN208938665U (en) | A kind of flexible direct current cable | |
| CN214099197U (en) | Flexible towline cable with armored protective layer | |
| CN212624835U (en) | High temperature resistant and cable of being convenient for deposit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181002 |
|
| WW01 | Invention patent application withdrawn after publication |