CN104181659B - Layer-stranding cable - Google Patents
Layer-stranding cable Download PDFInfo
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- CN104181659B CN104181659B CN201410465978.5A CN201410465978A CN104181659B CN 104181659 B CN104181659 B CN 104181659B CN 201410465978 A CN201410465978 A CN 201410465978A CN 104181659 B CN104181659 B CN 104181659B
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- convex body
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- loose tube
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- reinforcer
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Abstract
It is a kind of layer-stranding cable the present invention relates to optical cable technology field, it is at least made up of the cable core positioned at center, the protective layer being coated on outside cable core and the sheath outside protective layer；The outer profile of protective layer is circular or oval；Cable core at least includes Loose tube of the inside comprising optical fiber, center reinforcemen and wrapper material.Loose tube is stranded and axially extending along center reinforcemen around center reinforcemen, and wrapper material is relatively fixed Loose tube position.On any cross section, the outer profile of sheath is mutually discontinuous concentric and circular arc with curvature and to connect the adjacent circular arc and outwardly convex body is constituted by multistage；Each convex body inside includes reinforcer；Sheath is integral type structure with convex body.Low cost of the present invention, external diameter are small, optical cable is light, flexibility is good, and easy construction, anti-extrusion, temperature performance are good.
Description
The application is Application No. 200910206138.6, and the applying date is on October 10th, 2009, and invention and created name is
The divisional application of the application for a patent for invention of " having the layer-stranding cable of reinforcer in sheath ".
Technical field
The present invention relates to optical cable technology field, particularly a kind of layer-stranding cable.
Background technology
With continuing to develop for communication industry, optical cable is widely used, conventional layer-stranding cable, such as People's Republic of China (PRC)
Communication industry standard YD/T 901-2001《The core net layer-twisted type outdoor optical cable for communication of optical cable one》Described in, typically by
Cable core, cable core protective layer, sheath are constituted；Cable core is twisted around a center reinforcemen by some Loose tubes for including optical fiber
Conjunction is formed, certainly, it is necessary to core number it is less when, part Loose tube can be substituted using gasket for packing, all or portion in cable core
Material water-proof material can be also filled in subdivided gap；Cable core protective layer can be material water-proof material, the material such as steel band, aluminium strip, even can also be
The composite bed of plastic sheath is coated with steel band or aluminium strip, and in the sheath be coated with the materials such as steel wire, steel band or aluminium strip again
The further composite bed of material；Sheath is usually plastics, and what is often used has polyethylene, low smoke and zero halogen polyethylene etc..In this optical cable,
Reinforcer is located at optical cable center, therefore, with the increase of Loose tube unit number, the diameter of center reinforcemen is continued to increase, so,
On the one hand the cost of optical cable is considerably increased, the external diameter of optical cable is increased, be increased the weight of optical cable；On the other hand, optical cable is made
Softness it is very poor, make construction fairly cumbersome；Another further aspect, because center reinforcemen is located at optical cable center, because a little, it is necessary to complete
Center reinforcemen could be cut after full stripping fiber optic cables, the test to reviewer brings inconvenience.
The content of the invention
Regarding to the issue above, the present invention provides a kind of layer-stranding cable, and it is realized using following technical scheme：
There is the layer-stranding cable of reinforcer in sheath, it is at least by positioned at the cable core at center, the guarantor being coated on outside cable core
Sheath and the sheath outside protective layer are constituted；On any cross section, the outer profile of the protective layer is circular or oval
Shape；The cable core at least includes Loose tube of the inside comprising optical fiber, center reinforcemen and wrapper material；Loose tube encloses
Stranded and axially extending along center reinforcemen around center reinforcemen, the wrapper material of Loose tube outer cladding makes Loose tube position relative
It is fixed.There are 3 around the stranded Loose tube of center reinforcemen.It is characterized in that：On any cross section, the outer of the sheath
Profile is the circular arc and the connection adjacent circular arc and outwardly convex by the mutual discontinuous concentric of multistage and with curvature
Body is constituted；A reinforcements are included in each convex body；The sheath is integral type structure with convex body.
Layer-stranding cable described above, it is characterised in that：On any cross section, the convex body is along sheath outer peripheral edge
Symmetrically or asymmetrically it is distributed.
Layer-stranding cable described above, it is characterised in that：On any cross section, reinforcer in the convex body
The center of circle is located on the circumference that circular arc described above is formed or periphery.
Layer-stranding cable described above, it is characterised in that：On any cross section, the convex body by single-curvature circle
Segmental arc or rectangular section are made up of the arc section of two or two disparity curvatures.
Further, layer-stranding cable described above, it is characterised in that：On any cross section, in the convex body
The center of circle of reinforcer be equal or different to the distance at convex body edge of the reinforcer is surrounded.
Layer-stranding cable described above, it is characterised in that：The material of described reinforcer is metal or nonmetallic.
Layer-stranding cable described above, it is characterised in that：Described protective layer is steel band or aluminium strip or waterstop or poly-
Ester band or mica tape or nylon tape or water blocking yarn or polyester bundle yarn or non-woven fabrics or glass fiber tape.
Layer-stranding cable described above, it is characterised in that：Described sheath and the material of convex body are low density polyethylene
Alkene or medium density polyethylene or high density polyethylene (HDPE) or flame-proof polyethylene or low smoke and zero halogen polyethylene or low-smoke low-halogen polyethylene or
Smokeless halogen-free polyethylene or nylon or resistance to electric track resistant jacket material.
Layer-stranding cable described above, it is characterised in that；The thickness of described sheath 5 is more than or equal to 0.5mm and small
In equal to 3.0mm.
Layer-stranding cable described above, it is characterised in that：The a diameter of of reinforcer in the convex body is more than or equal to
0.2mm and less than or equal to 3.0mm.
Layer-stranding cable described above, it is characterised in that：The length of the optical fiber in the Loose tube is Loose tube
1.000-1.008 times, preferably 1.0035 times of length.
Because convex body is protruded from outside sheath and reinforcer is located among convex body in the present invention, therefore, with industry mark
Corresponding optical cable in standard is compared, and its restrictive coating thickness can be substantially reduced, and has not only saved cost, and in inspection and construction, only
Convex body need to be cut with pincers, you can easily stripping fiber optic cables；Further, since reinforcer is provided with sheath, therefore, center is strengthened
Part can replace using nonmetallic or diameter is smaller, also not interfere with the mechanical stretching performance requirement of optical cable；Therefore, may be used
With the cost for substantially reducing optical cable, the external diameter for reducing optical cable, the weight for reducing optical cable；The opposing party and, make the softness of optical cable
More preferably, it is more convenient construction；Further, since outside protruding from sheath by convex body, and it is one to be distributed in around sheath with sheath
Body, therefore, it can more efficiently prevent from external force extruding.
Brief description of the drawings
Fig. 1 is the cross-sectional view of cable core used in the embodiment of the present invention 1；
Fig. 2 is the schematic perspective view of the embodiment of the present invention 1；
Fig. 3 is the cross-sectional structure schematic diagram of Fig. 2；
Fig. 4 is the schematic perspective view of the embodiment of the present invention 2；
Fig. 5 is the cross-sectional structure schematic diagram of Fig. 4；
Fig. 6 is the schematic perspective view of the embodiment of the present invention 3；
Fig. 7 is the cross-sectional structure schematic diagram of Fig. 6；
Fig. 8 is the schematic perspective view of the embodiment of the present invention 4；
Fig. 9 is the cross-sectional structure schematic diagram of Fig. 8；
Figure 10 is the schematic perspective view of the embodiment of the present invention 5；
Figure 11 is the cross-sectional structure schematic diagram of Figure 10；
Figure 12 is the another cross-sectional structure schematic diagram of the cable core used in the present invention；
Figure 13 is another cross-sectional structure schematic diagram of the cable core used in the present invention；
Figure 14 is another cross-sectional structure schematic diagram of the cable core used in the present invention；
Figure 15 is a more cross-sectional structure schematic diagram of the cable core used in the present invention.
Reference in above-mentioned accompanying drawing is as follows：Cable core l, optical fiber 11, Loose tube 12, center reinforcemen 13, filling
Part 14, wrapper material 15, protective layer 16, reinforcer 21, reinforcer 22, reinforcer 23, reinforcer 24, convex body 31, convex body
32, convex body 33, convex body 34, protective layer 4, sheath 5, arc section 6.
Specific embodiment
Embodiment 1：
See figure l, Fig. 2 and Fig. 3, there is the layer-stranding cable of reinforcer in sheath, it is by the cable core l positioned at center, cladding
Protective layer 4 outside cable core l and the sheath outside protective layer 45 are constituted.On any cross section, outside the protective layer 4
It is circle along profile；The cable core l includes Loose tube 12 of three inside comprising optical fiber 11, center reinforcemen 13, filling
The component of part 14 and wrapper material 15.Loose tube 12 and filling member 14 are stranded and along center reinforcemen 13 around center reinforcemen 13
Axially extending, the wrapper material 15 of the outer cladding of Loose tube 12 is relatively fixed the position of Loose tube 12.It is characterized in that：In any horizontal stroke
On section, the outer profile of the sheath 5 is circular arc and the connection phase by two sections of mutual discontinuous concentrics and with curvature
Adjacent circular arc and the outwardly composition of convex body 31,32；All included in convex body 31 and all wrapped in a reinforcements 21, convex body 32
Containing a reinforcements 22；The sheath 5 is integral type structure with convex body；Convex body is symmetrically distributed along the outer peripheral edge of sheath 5；It is convex
The center of circle of the reinforcer in shape body is located on the circumference that the outer peripheral edge circular arc of sheath 5 is formed；Convex body by single-curvature arc section structure
Into；The center of circle of the reinforcer 21 in convex body 3l to the distance at convex body 3l edges be equal, the reinforcer in convex body 32
The distance at 22 center of circle to the edge of convex body 32 is equal.The material of reinforcer 21, reinforcer 22 and center reinforcemen l3 is
Metal；Protective layer 4 is steel band；The material of sheath 5 and convex body is low density polyethylene (LDPE)；The thickness of sheath 5 is 1.0mm；Plus
Strong part 2l, the diameter of reinforcer 22 are all 1.0mm；The length of the optical fiber 11 in Loose tube 12 is the length of Loose tube 12
1.0035 times；So, make whole optical cable under tensile force and pressure effect, optical fiber can be made small compacted in Loose tube
It is dynamic, so that optical cable obtains good ess-strain performance；Meanwhile, temperature from be changed to+100 degrees Celsius for -60 degrees Celsius when,
Due to the small wriggling of optical fiber make its still have excellent optical property, in this temperature range, optical fiber it is attached
Plus decay maximum absolute value is 0.03dB/km.
Embodiment 2：
Fig. 1, Fig. 4 and Fig. 5 are referred to, there is the layer-stranding cable of reinforcer in sheath, substantially with embodiment 1, difference
It is：On any cross section, the outer profile of sheath 5 is by four sections of mutual discontinuous concentrics and the circular arc with curvature and company
Connect the adjacent circular arc and outwardly convex body 31,32,33,34 is constituted；A reinforcements 2l is all included in convex body 3l,
All include all to be included in a reinforcements 22, convex body 33 in convex body 32 and one is all included in a reinforcements 23, convex body 34
Reinforcements 24；The sheath 5 is integral type structure with convex body；Convex body is symmetrically distributed along the outer peripheral edge of sheath 5, adjacent
The angle of the line in the Center-to-Center reinforcer center of circle of convex body is mutually 90 degree.
Embodiment 3：
Fig. 1, Fig. 6 and Fig. 7 are referred to, there is the layer-stranding cable of reinforcer in sheath, substantially with embodiment 1, difference
It is stored in：On any cross section, the center of circle of the reinforcer in convex body is located at the periphery that the outer peripheral edge circular arc of sheath 5 is formed；
Convex body is made up of arc sections more than two curvature；Wherein the curvature of arc section 6 is different from the curvature of convex body 31；It is convex
The center of circle of the reinforcer in shape body is not completely equivalent to the distance at the convex body edge for surrounding the reinforcer.
Embodiment 4：
Figure l, Fig. 8 and Fig. 9 are referred to, there is the layer-stranding cable of reinforcer in sheath, substantially with embodiment 2, difference
It is：On any cross section, the center of circle of the reinforcer in convex body is located at the periphery that the outer peripheral edge circular arc of sheath 5 is formed；
The sheath 5 is integral type structure with convex body；Convex body is asymmetrically distributed with along the outer peripheral edge of sheath 5.
Embodiment 5：
Fig. 1, Figure 10 and Figure 11 are referred to, there is the layer-stranding cable of reinforcer in sheath, substantially with embodiment 3, difference
Place is：On any cross section, the convex body is made up of rectangular section；The center of circle of the reinforcer in convex body should add to encirclement
The distance at the convex body edge of strong part is not completely equivalent.
Certainly, in any of the above-described embodiment, can also be included including three inside using the cable core l shown in Figure 12, cable core 1
The component of the Loose tube 12 of optical fiber 11, center reinforcemen 13, filling member 14 and wrapper material 15；Loose tube 12 and filling member
14 is stranded and axially extending along center reinforcemen 13 around center reinforcemen 13, and the wrapper material 15 of the outer cladding of Loose tube 12 makes pine
The position of sleeve pipe 12 is relatively fixed；Many optical fibers 11 form fibre ribbon, and stacking is placed in Loose tube 12.
Certainly, in any of the above-described embodiment, can also be included including five inside using the cable core l shown in Figure 13, cable core 1
The component of the Loose tube 12, center reinforcemen 13 and wrapper material 15 of optical fiber 11；Loose tube 12 is around center reinforcemen 13
Stranded and axially extending along center reinforcemen 13, the wrapper material 15 of the outer cladding of Loose tube 12 makes the position of Loose tube 12 relatively solid
It is fixed.
Certainly, in any of the above-described embodiment, can also be included including four inside using the cable core 1 shown in Figure 14, cable core 1
The component of the Loose tube 12 of optical fiber 1l, center reinforcemen 13, filling member 14 and wrapper material 15；Loose tube 12 and filling member
14 is stranded and axially extending along center reinforcemen 13 around center reinforcemen 13, and the wrapper material 15 of the outer cladding of Loose tube 12 makes pine
The position of sleeve pipe 12 is relatively fixed.
Certainly, in any of the above-described embodiment, can also be included including four inside using the cable core l shown in Figure 15, cable core 1
The component of the Loose tube 12 of optical fiber 11, center reinforcemen 13, filling member 14 and wrapper material 15；Center reinforcemen 13 is outer to squeeze
It is surrounded by protective layer 16；Loose tube 12 and filling member 14 are stranded and in around the center reinforcemen 13 that outside extrudes matcoveredn 16
Heart reinforcer 13 is axially extending, and the wrapper material 15 of the outer cladding of Loose tube 12 is relatively fixed the position of Loose tube 12.
Certainly, in any of the above-described embodiment, material water-proof material can also be filled in the gap of described cable core l.
Certainly, in any of the above-described embodiment, described cable core 1 at least includes pine set of the inside comprising optical fiber 11
The component of pipe 12, center reinforcemen 13 and wrapper material 15；Loose tube 12 is stranded around center reinforcemen 13 and strengthens along center
Part 13 is axially extending, and the wrapper material 15 of the outer cladding of Loose tube 12 is relatively fixed the position of Loose tube 12.
Certainly, in any of the above-described embodiment, multilayer protection materials can also be set, with more preferable between protective layer 4 and sheath 5
Realize the protection to optical fiber in ground.
Certainly, in any of the above-described embodiment, the convex body can symmetrically or asymmetrically be distributed along the outer peripheral edge of sheath 5.
In any of the above-described embodiment, on any cross section, the center of circle of the reinforcer in the convex body is located at above-mentioned institute
State on the circumference of circular arc formation or periphery.
In any of the above-described embodiment, on any cross section, the convex body by single-curvature arc section or rectangular section or
It is made up of the arc section of two or two disparity curvatures.
In any of the above-described embodiment, on any cross section, the center of circle of the reinforcer in the convex body should add to encirclement
The distance at the convex body edge of strong part is equal or different.
In any of the above-described embodiment, the material of described reinforcer is metal or nonmetallic.
In any of the above-described embodiment, described protective layer 4 for steel band or aluminium strip or waterstop or polyester belt or mica tape or
Nylon tape or water blocking yarn or polyester prick yarn or non-woven fabrics or glass fiber tape.
In any of the above-described embodiment, described sheath 5 and the material of convex body are low density polyethylene (LDPE) or the poly- second of Midst density
Alkene or high density polyethylene (HDPE) or flame-proof polyethylene or low smoke and zero halogen polyethylene or low-smoke low-halogen polyethylene or smokeless halogen-free polyethylene
Or nylon or resistance to electric track resistant jacket material.
In any of the above-described embodiment, the thickness of described sheath 5 is more than or equal to 0.5mm and less than or equal to 3.0mm.
In any of the above-described embodiment, a diameter of of reinforcer in the convex body more than or equal to 0.2mm and is less than or equal to
3.0mm。
In any of the above-described embodiment, the length of the optical fiber 11 in the Loose tube 12 is the length of Loose tube 12
1.000-1.008 times.
Because convex body is protruded from outside sheath 5 and reinforcer is located among convex body in the present invention, therefore, with industry mark
Corresponding optical cable in standard is compared, and its restrictive coating thickness can be substantially reduced, and has not only saved cost, and in inspection and construction, only
Convex body need to be cut with pincers, you can easily stripping fiber optic cables；Further, since reinforcer is provided with sheath 5, therefore, center adds
Strong part 13 can replace using nonmetallic or diameter is smaller, also not interfere with the mechanical stretching performance requirement of optical cable；Cause
This, the cost that optical cable can be substantially reduced, the external diameter for reducing optical cable, the weight for reducing optical cable；On the other hand, the softness of optical cable is made
Performance more preferably, is more convenient construction；Further, since outside protruding from sheath 5 by convex body, and be distributed in around sheath 5 and shield
What set 5 was integrated, therefore, it can more efficiently prevent from external force extruding.
Exemplary embodiment of the present and current preferred embodiment are specifically illustrated herein, it will be appreciated that the present invention
Design can be implemented to use by other various forms, and they are also fallen within protection scope of the present invention.
Claims (1)
1. a kind of layer-stranding cable, it is at least by the cable core positioned at center（1）, be coated on cable core（1）Outside protective layer（4）And
Positioned at protective layer（4）Outside sheath（5）Constitute；On any cross section, the protective layer（4）Outer profile for circle；Institute
State cable core（1）At least include that an inside includes optical fiber（11）Loose tube（12）, center reinforcemen（13）And wrapping material
Material（15）；Loose tube（12）Around center reinforcemen（13）It is stranded and along center reinforcemen（13）It is axially extending, Loose tube（12）
The wrapper material of outer cladding（15）Make Loose tube（12）Position is relatively fixed；On any cross section, the sheath（5）Outer
Profile is the circular arc and connection adjacent circular arc and outwardly convex body structure by four sections of mutual discontinuous concentrics and with curvature
Into；A reinforcements are included in each convex body；The sheath（5）It is integral type structure with convex body；It is characterized in that：
On any cross section, around center reinforcemen（13）Stranded Loose tube（12）There are 3；Reinforcement in the convex body
The center of circle of part is located at the sheath（5）On the circumference that outer peripheral edge circular arc is formed, the center of circle of the reinforcer in convex body should to encirclement
The distance at the convex body edge of reinforcer is equal；Convex body is along sheath（5）Outer peripheral edge is symmetrically distributed, adjacent convex body
The angle of the line in the Center-to-Center reinforcer center of circle is mutually 90 degree；The Loose tube（12）Interior optical fiber（11）Length
It is Loose tube（12）1.000-1.008 times of length；Temperature from be changed to+100 degrees Celsius for -60 degrees Celsius when, Loose tube
（12）Interior optical fiber（11）Additional attenuation maximum absolute value be 0.03dB/km；The material of described reinforcer is metal
Or it is nonmetallic；Described protective layer（4）It is steel band or aluminium strip or waterstop or polyester belt or mica tape or nylon tape or resistance
Water yarn or polyester prick yarn or non-woven fabrics or glass fiber tape；Described sheath（5）And the material of convex body is low density polyethylene (LDPE)
Or medium density polyethylene or high density polyethylene (HDPE) or flame-proof polyethylene or low smoke and zero halogen polyethylene or low-smoke low-halogen polyethylene or nothing
Cigarette halogen-free polyvinyl or nylon or resistance to electric track resistant jacket material；Described sheath（5）Thickness be 0.5mm or 3.0mm；The convex body
A diameter of 0.2mm or 3.0mm of interior reinforcer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410465978.5A CN104181659B (en) | 2009-10-10 | 2009-10-10 | Layer-stranding cable |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910206138.6A CN101706601B (en) | 2009-10-10 | 2009-10-10 | Layer stranded fiber optical cable with reinforcer in sheath |
| CN201410465978.5A CN104181659B (en) | 2009-10-10 | 2009-10-10 | Layer-stranding cable |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910206138.6A Division CN101706601B (en) | 2009-10-10 | 2009-10-10 | Layer stranded fiber optical cable with reinforcer in sheath |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104181659A CN104181659A (en) | 2014-12-03 |
| CN104181659B true CN104181659B (en) | 2017-06-13 |
Family
ID=51962839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410465978.5A Active CN104181659B (en) | 2009-10-10 | 2009-10-10 | Layer-stranding cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104181659B (en) |
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2009
- 2009-10-10 CN CN201410465978.5A patent/CN104181659B/en active Active
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| Publication number | Publication date |
|---|---|
| CN104181659A (en) | 2014-12-03 |
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| CB03 | Change of inventor or designer information |
Inventor after: Li Guangsheng Inventor after: Li Guankui Inventor after: Gao Xianwu Inventor after: Zhang Chuandong Inventor after: Zhou Wen Inventor before: Hu Yan |
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| CB03 | Change of inventor or designer information | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170511 Address after: 252000 No. 14, West Lake, Yanggu County, Shandong, Liaocheng Applicant after: SHANDONG PACIFIC OPTICAL FIBER CABLE Co.,Ltd. Address before: 215121 Suzhou Industrial Park, Jiangsu, South Road, a large harvest Plaza, room 1, room 809 Applicant before: SUZHOU BEITENGTE ELECTRONIC TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20230613 Granted publication date: 20170613 |
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