CN206892418U - Large core number is double-deck to twist optical cable - Google Patents
Large core number is double-deck to twist optical cable Download PDFInfo
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- CN206892418U CN206892418U CN201720783020.XU CN201720783020U CN206892418U CN 206892418 U CN206892418 U CN 206892418U CN 201720783020 U CN201720783020 U CN 201720783020U CN 206892418 U CN206892418 U CN 206892418U
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- optical fiber
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Abstract
The utility model discloses a kind of double-deck strand optical cable of large core number, including metal reinforcement (1), the first optical fiber layer (2), the second optical fiber layer (3), metal compound belt (4) and oversheath (5) are sequentially provided with outside metal reinforcement (1)；Described the first optical fiber layer (2) and the second optical fiber layer (3) include multiple fiber units (6)；Described fiber unit (6) includes Loose tube (8), and multifiber (9) is provided with Loose tube (8)；Described metal reinforcement (1) includes the reinforcer main body (11) of cylindrical structure, reinforcer main body (11) is provided with the through-hole component (12) of one group of lateral arrangement, reinforcing fiber band (13) and water blocking yarn (14) are filled with through-hole component (12), reinforcer main body (11) outer surface is additionally provided with polyethylene layer (15).The characteristics of the utility model has the bearing strength that can improve metal reinforcement and reduces optical cable volume.
Description
Technical field
A kind of optical cable is the utility model is related to, particularly a kind of large core number is double-deck to twist optical cable.
Background technology
With the fast development of network, increasingly increase for the demand of optical cable, existing fiber optic cable manufacture technique is directed to individual layer cable
Core optical cable maximum core number can accomplish 144 cores, possess double-deck cable core by the innovation unit cable to cable core structure, optical cable
Maximum core number can accomplish 288 cores, and optical cable internal layer is typically by 1+6,1+7,1+8,1+9 structure composition, and layer structure is generally 1+
12nd, 1+13,1+14,1+15, its structure depend primarily on the roundness of optical cable, and such optical cable is all covered using the pine of same size
Pipe forms, conductor assembly outer diameter rounding.It is smaller than the diameter of the optical fiber ribbon cable of dimension to produce the diameter of the optical cable of identical core number, therefore
Material can be more saved, it is cost-effective.But the double-deck heavier-weight for twisting optical cable, the intensity of single piece of metal reinforcer it is relatively low, it is necessary to
More metal reinforcements bear external force, which not only adds the cost of production, and also need to expand center reinforcemen
Space so that the volume of optical cable is larger.
Utility model content
The purpose of this utility model is, there is provided a kind of large core number is double-deck to twist optical cable.It strengthens with that can improve metal
The characteristics of bearing strength and reduction optical cable volume of part.
The technical solution of the utility model：Large core number is double-deck to twist optical cable, including metal reinforcement, outside metal reinforcement successively
Provided with the first optical fiber layer, the second optical fiber layer, metal compound belt and oversheath；Described the first optical fiber layer and the second optical fiber layer wraps
Multiple mutually twisted fiber units are included, cable cream is provided between adjacent fiber unit；Described fiber unit includes Loose tube,
Multifiber is provided with Loose tube, and the space between Loose tube and optical fiber is provided with fine cream；Described metal reinforcement includes circle
The reinforcer main body of rod structure, reinforcer main body are provided with the through-hole component of one group of lateral arrangement, are filled with through-hole component strong
Chemical fibre ties up band and water blocking yarn, reinforcer body outer surface are additionally provided with polyethylene layer.
Foregoing large core number is double-deck to be twisted in optical cable, and described through-hole component includes leading to positioned at the center of reinforcer main center
Hole, water blocking yarn are located in central through hole；Described through-hole component also includes the reinforcement through hole on the outside of central through hole, and strengthens
Fiber band is in reinforcement through hole.
Foregoing large core number is double-deck to be twisted in optical cable, and longitudinal direction annular is provided between described the first optical fiber layer and the second optical fiber layer
The tear rope of arrangement.
Foregoing large core number is double-deck to be twisted in optical cable, between the second described optical fiber layer and metal compound belt and optical fiber and pine
Multiple water baffle bars being circular layout are provided between sleeve pipe；Described metal compound belt and Loose tube inner surface is respectively equipped with annular
The seal groove of structure, and seal groove is corresponding with the position of water baffle bar.
Foregoing large core number is double-deck to be twisted in optical cable, and described metal compound belt is aluminium-plastic tape or composite steel-plastic belt.
Compared with prior art, the utility model in reinforcer main body by setting one group of through-hole component, it is possible to increase
The intensity of reinforcer, improves and water blocking yarn is set in central through hole, can absorb moisture, prevents moisture from entering cable interior, rises
To the purpose of protection against the tide；By strengthening setting reinforcing fiber band in through hole, the carrying of metal reinforcement can be further improved
Intensity, the double-deck intensity requirement for twisting optical cable is met in the case where not increasing metal reinforcement quantity and volume, light can be reduced
The overall volume of cable.By setting polyethylene layer in reinforcer body outer surface, more easily fiber unit can be twisted
In reinforcer main body.In summary, the utility model has the bearing strength that can improve metal reinforcement and reduces light
The characteristics of cable volume.
In addition, multiple be circular layout is set between the second optical fiber layer and metal compound belt and between optical fiber and Loose tube
Water baffle bar, be respectively equipped with the seal groove of loop configuration in the inner surface of metal compound belt and Loose tube, pass through seal groove with resistance
The mutual cooperation of water bar, multiple independent spaces can will be separated into metal compound belt and Loose tube respectively, prevent fine cream and
The loss of cable cream.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is sectional view of the present utility model.
Mark in accompanying drawing for：1- metal reinforcements, the optical fiber layers of 2- first, the optical fiber layers of 3- second, 4- metal compound belts, 5-
Oversheath, 6- fiber units, 7- cable cream, 8- Loose tubes, 9- optical fiber, 10- fibre cream, 11- reinforcer main bodys, 12- through-hole components,
13- reinforcing fiber bands, 14- water blocking yarns, 15- polyethylene layers, 16- central through holes, 17- strengthen through hole, 18- tear ropes, and 19- blocks water
Bar, 20- seal grooves.
Embodiment
The utility model is further described with reference to the accompanying drawings and examples, but is not intended as to the utility model
The foundation of limitation.
Embodiment.Large core number is double-deck to twist optical cable, forms as depicted in figs. 1 and 2, including metal reinforcement 1, metal reinforcement
The first optical fiber layer 2, the second optical fiber layer 3, metal compound belt 4 and oversheath 5 are sequentially provided with outside 1；The first described optical fiber layer 2 and
Two optical fiber layers 3 include multiple mutually twisted fiber units 6, and cable cream 7 is provided between adjacent fiber unit 6；Described light
Fine unit 6 includes Loose tube 8, is provided with multifiber 9 in Loose tube 8, and the space between Loose tube 8 and optical fiber 9 is provided with fine cream
10；Described metal reinforcement 1 includes the reinforcer main body 11 of cylindrical structure, and reinforcer main body 11 is provided with one group of lateral arrangement
Through-hole component 12, is filled with reinforcing fiber band 13 and water blocking yarn 14 in through-hole component 12, the outer surface of reinforcer main body 11 is also set
There is polyethylene layer 15.
During described through-hole component 12 includes the central through hole 16 positioned at the center of reinforcer main body 11, and water blocking yarn 14 is located at
In heart through hole 16；Described through-hole component 12 also includes the reinforcement through hole 17 positioned at the outside of central through hole 16, and reinforcing fiber band
13 in reinforcement through hole 17.
The tear rope 18 being longitudinally circular layout is provided between described the first optical fiber layer 2 and the second optical fiber layer 3.
Multiple annulars are provided between the second described optical fiber layer 3 and metal compound belt 4 and between optical fiber 9 and Loose tube 8
The water baffle bar 19 of arrangement；Described metal compound belt 4 and the inner surface of Loose tube 8 is respectively equipped with the seal groove 20 of loop configuration,
And seal groove 20 is corresponding with the position of water baffle bar 19.
Described metal compound belt 4 is aluminium-plastic tape or composite steel-plastic belt.
Described reinforcing fiber band is Fiber glass rod, and Fiber glass rod is externally provided with tack coat, expanded by heating layer；Described
Reinforcing fiber band is with strengthening through hole as interference fit.
The fiber unit quantity of first optical fiber layer is 9.
The fiber unit quantity of second optical fiber layer is 15.
Manufacturing process of the present utility model：By single mode or the optical fiber of multimode 9 be inserted in by the plastics of high-modulus make in fill out
Fill in the Loose tube 8 of waterproofing compound (fine cream).The center of cable core is a metal reinforcement 1, for the optical cable of some core numbers
For, also extrude one polyethylene layer 15 (PE) outside metal reinforcement 1.Loose tube 8 (and gasket for packing) twists around center reinforcemen 1
Compact and circular cable core is synthesized, forms the first optical fiber layer 2, then the second optical fiber layer 3, cable core are completed by second of stranding is twisted
Interior gap is filled with cable cream 7.The oversheath 5 of extruded polyethylene material after the vertical bag of metal compound belt 4.
Claims (5)
1. large core number is double-deck to twist optical cable, it is characterised in that：The is sequentially provided with including metal reinforcement (1), outside metal reinforcement (1)
One optical fiber layer (2), the second optical fiber layer (3), metal compound belt (4) and oversheath (5)；Described the first optical fiber layer (2) and second
Optical fiber layer (3) includes multiple mutually twisted fiber units (6), and cable cream (7) is provided between adjacent fiber unit (6)；Institute
The fiber unit (6) stated includes Loose tube (8), and multifiber (9), and Loose tube (8) and optical fiber (9) are provided with Loose tube (8)
Between space be provided with fine cream (10)；Described metal reinforcement (1) includes the reinforcer main body (11) of cylindrical structure, reinforcer
Main body (11) is provided with the through-hole component (12) of one group of lateral arrangement, in through-hole component (12) filled with reinforcing fiber band (13) and
Water blocking yarn (14), reinforcer main body (11) outer surface are additionally provided with polyethylene layer (15).
2. large core number according to claim 1 is double-deck to twist optical cable, it is characterised in that：Described through-hole component (12) includes position
Central through hole (16) in reinforcer main body (11) center, and water blocking yarn (14) is located in central through hole (16)；Described through hole
Component (12) also includes the reinforcement through hole (17) on the outside of central through hole (16), and reinforcing fiber band (13) is positioned at reinforcement through hole
(17) in.
3. large core number according to claim 1 is double-deck to twist optical cable, it is characterised in that：Described the first optical fiber layer (2) and
The tear rope (18) being longitudinally circular layout is provided between two optical fiber layers (3).
4. large core number according to claim 1 is double-deck to twist optical cable, it is characterised in that：Described the second optical fiber layer (3) and gold
Multiple water baffle bars (19) being circular layout are provided between category composite band (4) and between optical fiber (9) and Loose tube (8)；Described
Metal compound belt (4) and Loose tube (8) inner surface are respectively equipped with the seal groove (20) of loop configuration, and seal groove (20) and resistance
The position of water bar (19) is corresponding.
5. large core number according to claim 1 is double-deck to twist optical cable, it is characterised in that：Described metal compound belt (4) is aluminium
Plastic composite strip or composite steel-plastic belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720783020.XU CN206892418U (en) | 2017-06-30 | 2017-06-30 | Large core number is double-deck to twist optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720783020.XU CN206892418U (en) | 2017-06-30 | 2017-06-30 | Large core number is double-deck to twist optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206892418U true CN206892418U (en) | 2018-01-16 |
Family
ID=61298978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720783020.XU Active CN206892418U (en) | 2017-06-30 | 2017-06-30 | Large core number is double-deck to twist optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206892418U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113376776A (en) * | 2021-05-11 | 2021-09-10 | 浙江东通光网物联科技有限公司 | 5G-used optical cable with ultra-large core number |
-
2017
- 2017-06-30 CN CN201720783020.XU patent/CN206892418U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113376776A (en) * | 2021-05-11 | 2021-09-10 | 浙江东通光网物联科技有限公司 | 5G-used optical cable with ultra-large core number |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 313009 No. 2299 East strong Garden Road, Nanxun Economic Development Zone, Huzhou, Zhejiang Patentee after: Zhejiang Dongtong optical network IOT Technology Co., Ltd Address before: 313009 No. 2299 East strong Garden Road, Nanxun Economic Development Zone, Huzhou, Zhejiang Patentee before: Zhejiang Hengtong optical network IOT Technology Co., Ltd. |