CN104181659A - Stranded loose tube cable - Google Patents
Stranded loose tube cable Download PDFInfo
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- CN104181659A CN104181659A CN201410465978.5A CN201410465978A CN104181659A CN 104181659 A CN104181659 A CN 104181659A CN 201410465978 A CN201410465978 A CN 201410465978A CN 104181659 A CN104181659 A CN 104181659A
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- convex body
- sheath
- sleeve pipe
- reinforcement
- center
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Abstract
The invention relates to the technical field of cables, in particular to a stranded loose tube cable. The stranded loose tube cable at least comprises a cable core located in the center, a protective layer arranged outside the cable core in a wrapping mode, and a sheath located outside the protective layer, wherein the outer edge contour of the protective layer is circular or oval. The cable core comprises at least one loose tube with optical fibers inside, a center reinforcing piece and binding materials. The loose tubes are stranded around the center reinforcing piece and axially extend along the center reinforcing piece, and the positions of the loose tubes are relatively fixed due to the binding materials. On any cross section, the outer edge contour of the sheath is formed by a plurality of concentric equal-curvature arcs which are not continuous and protrusions which are connected with the adjacent arcs and protrude outwards. The reinforcing piece is contained in all the protrusions, and the sheath and the protrusions are integrated. The stranded loose tube cable is low in cost, small in outer diameter, light in weight, good in flexibility, convenient to construct, resistant to press and good in temperature performance.
Description
The application is that application number is 200910206138.6, and the applying date is on October 10th, 2009, the divisional application of the application for a patent for invention that invention and created name is " having the layer-stranding cable of reinforcement in sheath ".
Technical field
The present invention relates to optical cable technology field, particularly a kind of layer-stranding cable.
Background technology
Along with the development of communication industry, optical cable is widely used, conventional layer-stranding cable, described in the communication industry standard YD/T of the People's Republic of China (PRC) 901-2001 " optical cable one deck strand formula outdoor optical cable for communication for core net ", is normally made up of cable core, cable core protective seam, sheath; Cable core is to include fibre-optic loose sleeve pipe by some to form around a central reinforce member is stranded, certainly, when the core number of needs is less, can adopt gasket for packing to carry out Substitute For Partial pine sleeve pipe, also can fill material water-proof material in all or part gap in cable core; Cable core protective seam can be material water-proof material, the materials such as steel band, aluminium strip, even can also be to be coated with the composite bed of plastic sheath at steel band or aluminium strip, and is coated with the further composite bed of the materials such as steel wire, steel band or aluminium strip at this sheath again; Sheath is generally plastics, normal use have tygon, a low smoke and zero halogen tygon etc.In this optical cable, reinforcement is positioned at optical cable center, and therefore, along with the increase of loose tube unit number, the diameter of central reinforce member continues to increase, like this, greatly increased on the one hand optical cable cost, increased optical cable external diameter, increased the weight of optical cable; On the other hand, make the softness of optical cable very poor, quite trouble makes to construct; Again on the one hand, because central reinforce member is positioned at optical cable center, because of a little, need just can cut off central reinforce member after complete stripping fiber optic cables, brought inconvenience to reviewer's test.
Summary of the invention
For the problems referred to above, the invention provides a kind of layer-stranding cable, it is realized by the following technical solutions:
In sheath, have the layer-stranding cable of reinforcement, it at least by be positioned at center cable core, be coated on the protective seam outside cable core and the sheath that is positioned at outside protective seam forms; On arbitrary xsect, the outer profile of described protective seam is circular or oval; Described cable core at least comprises that an inside comprises fibre-optic loose sleeve pipe, central reinforce member and wrapper material; Pine sleeve pipe is stranded and extend axially along central reinforce member around central reinforce member, and the wrapper material of loose sleeve pipe outer cladding makes loose sleeve position relatively fixing.It is characterized in that: on arbitrary xsect, the outer profile of described sheath be by the mutual discontinuous concentric of multistage and with the circular arc of curvature be connected described adjacent circular arc and outwardly convex body forms; In each convex body, comprise a reinforcements; Described sheath and convex body are integral type structure.
Layer-stranding cable described above, is characterized in that: on arbitrary xsect, described convex body is symmetrical or distribution asymmetrically along sheath outer peripheral edges.
Layer-stranding cable described above, is characterized in that: on arbitrary xsect, the center of circle of the reinforcement in described convex body is positioned on the circumference that circular arc described above forms or periphery.
Layer-stranding cable described above, is characterized in that: on arbitrary xsect, described convex body is by arc section or the rectangular section of single-curvature or be made up of the arc section of two or two disparity curvatures.
Further, layer-stranding cable described above, is characterized in that: on arbitrary xsect, the center of circle of the reinforcement in described convex body is not equate or not etc. to the distance at convex body edge of surrounding this reinforcement.
Layer-stranding cable described above, is characterized in that: that the material of described reinforcement is metal or nonmetallic.
Layer-stranding cable described above, is characterized in that: described protective seam is steel band or aluminium strip or waterstop or polyester belt or mica tape or nylon tape or water blocking yarn or polyester bundle yarn or nonwoven fabrics or glass fiber tape.
Layer-stranding cable described above, is characterized in that: the material of described sheath and convex body is Low Density Polyethylene or medium density polyethylene or high density polyethylene or sun combustion tygon or low smoke and zero halogen tygon or low-smoke low-halogen tygon or smokeless halogen-free tygon or nylon or resistance to electric track resistant jacket material.
Layer-stranding cable described above, is characterized in that; The thickness of described sheath 5 is for being more than or equal to 0.5mm and being less than or equal to 3.0mm.
Layer-stranding cable described above, is characterized in that: the diameter of the reinforcement in described convex body is for being more than or equal to 0.2mm and being less than or equal to 3.0mm.
Layer-stranding cable described above, is characterized in that: the 1.000-1.008 of the length that the fibre-optic length in described loose sleeve pipe is loose sleeve pipe times, and preferably 1.0035 times.
Because convex body in the present invention protrudes from outside sheath and reinforcement is positioned among convex body, therefore, compared with corresponding optical cable in industry standard, its restrictive coating thickness can dwindle greatly, not only save cost, and in inspection and construction, only need cut off convex body, easily stripping fiber optic cables with pincers; In addition, owing to being provided with reinforcement in sheath, therefore, central reinforce member can adopt nonmetallic or diameter is less replaces, and also can not affect the mechanical stretching performance requirement of optical cable; Therefore, can greatly reduce the weight of the cost of optical cable, the external diameter that dwindles optical cable, minimizing optical cable; The opposing party and, make the softness of optical cable better, make to construct more convenient; In addition, owing to being protruded from outside sheath by convex body, and be distributed in that sheath is around integrated with sheath, therefore, can more effectively prevent external force extruding.
Brief description of the drawings
Figure l be in the embodiment of the present invention 1 adopt cable core cross sectional representation;
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 that adopts in the present invention;
Figure 13 is a cross-sectional structure schematic diagram again of the cable core that adopts in the present invention;
Figure 14 is another cross-sectional structure schematic diagram of the cable core that adopts in the present invention;
Figure 15 is a more cross-sectional structure schematic diagram of the cable core that adopts in the present invention.
Reference numeral in above-mentioned accompanying drawing is as follows: cable core l, light transmitting fiber 11, loose sleeve pipe 12; central reinforce member 13, filling member 14, wrapper material 15; protective seam 16, reinforcement 21, reinforcement 22; reinforcement 23, reinforcement 24, convex body 31; convex body 32, convex body 33, convex body 34; protective seam 4, sheath 5, arc section 6.
Embodiment
Embodiment 1:
Ask for an interview figure l, Fig. 2 and Fig. 3, in sheath, have the layer-stranding cable of reinforcement, it by be positioned at center cable core l, be coated on the protective seam 4 outside cable core l and the sheath 5 that is positioned at outside protective seam 4 forms.On arbitrary xsect, the outer profile of described protective seam 4 is circular; Described cable core l comprises the member of loose sleeve pipe 12, central reinforce member 13, filling member 14 and wrapper material 15 that three inside comprise light transmitting fiber 11.Pine sleeve pipe 12 and filling member 14 are stranded and extend axially along central reinforce member 13 around central reinforce member 13, and the wrapper material 15 of loose sleeve pipe 12 outer claddings makes loose sleeve pipe 12 positions relatively with fixed.It is characterized in that: on arbitrary xsect, the outer profile of described sheath 5 be by two sections of mutual discontinuous concentrics and with the circular arc of curvature be connected described adjacent circular arc and outwardly convex body 31,32 forms; In convex body 31, all comprise a reinforcements 21, in convex body 32, all comprise a reinforcements 22; Described sheath 5 is integral type structure with convex body; Convex body distributes symmetrically along sheath 5 outer peripheral edges; The center of circle of the reinforcement in convex body is positioned on the circumference of sheath 5 outer peripheral edges circular arcs formation; Convex body is made up of the arc section of single-curvature; The center of circle of the reinforcement 21 in convex body 3l equates to the distance at convex body 3l edge, and the center of circle that convex is stopped the reinforcement 22 in 32 equates to the distance at convex body 32 edges.The material of reinforcement 21, reinforcement 22 and central reinforce member l3 is metal; Protective seam 4 is steel band; The material of sheath 5 and convex body is Low Density Polyethylene; The thickness of sheath 5 is 1.0mm; The diameter of reinforcement 2l, reinforcement 22 is all 1.0mm: the length of the light transmitting fiber 11 in loose sleeve pipe 12 is 1.0035 times of length of loose sleeve pipe 12; Like this, make whole optical cable under tensile force and pressure-acting, light transmitting fiber can be made small wriggling in loose sleeve pipe, thereby makes optical cable obtain good ess-strain performance; Meanwhile, temperature from-60 degrees Celsius be changed to+100 degrees Celsius time, still there is good optical property because fibre-optic small wriggling makes it, in this temperature range, fibre-optic additional attenuation absolute value is 0.03dB/km to the maximum.
Embodiment 2:
Refer to Fig. 1, Fig. 4 and Fig. 5, in sheath, there is the layer-stranding cable of reinforcement, substantially with embodiment 1, difference is: on arbitrary xsect, the outer profile of sheath 5 be by four sections of mutual discontinuous concentrics and with the circular arc of curvature be connected described adjacent circular arc and outwardly convex body 31,32,33,34 forms; In convex body 3l, all comprise a reinforcements 2l, in convex body 32, all comprise a reinforcements 22, in convex body 33, all comprise a reinforcements 23, in convex body 34, all comprise a reinforcements 24; Described sheath 5 is integral type structure with convex body; Convex body distributes symmetrically along sheath 5 outer peripheral edges, and the angle of the line in the Center-to-Center reinforcement center of circle of adjacent convex body is mutually 90 degree.
Embodiment 3:
Refer to Fig. 1, Fig. 6 and Fig. 7, have the layer-stranding cable of reinforcement in sheath, with embodiment 1, difference is stored in substantially: on arbitrary xsect, the center of circle of the reinforcement in convex body is positioned at the periphery that sheath 5 outer peripheral edges circular arcs form; Convex body is made up of two arc sections more than curvature; Wherein the curvature of arc section 6 is different from the curvature of convex body 31; The center of circle of the reinforcement in convex body is not exclusively just to equate to the distance at the convex body edge that surrounds this reinforcement.
Embodiment 4:
Refer to figure l, Fig. 8 and Fig. 9, have the layer-stranding cable of reinforcement in sheath, with embodiment 2, difference is substantially: on arbitrary xsect, the center of circle of the reinforcement in convex body is positioned at the periphery that sheath 5 outer peripheral edges circular arcs form; Described sheath 5 is integral type structure with convex body; Convex body distributes asymmetrically along sheath 5 outer peripheral edges.
Embodiment 5:
Refer to Fig. 1, Figure 10 and Figure 11, have the layer-stranding cable of reinforcement in sheath, with embodiment 3, difference is substantially: on arbitrary xsect, described convex body is made up of rectangular section; The center of circle of the reinforcement in convex body is not exclusively to equate to the distance at the convex body edge that surrounds this reinforcement.
Certainly, in above-mentioned arbitrary embodiment, can also adopt the cable core l shown in Figure 12, cable core 1 comprises the member of loose sleeve pipe 12, central reinforce member 13, filling member 14 and wrapper material 15 that three inside comprise light transmitting fiber 11; Pine sleeve pipe 12 and filling member 14 are stranded and extend axially along central reinforce member 13 around central reinforce member 13, and the wrapper material 15 of loose sleeve pipe 12 outer claddings makes loose sleeve pipe 12 positions relatively fixing; Many light transmitting fibers 11 form fibre ribbon, stacked being placed in loose sleeve pipe 12.
Certainly, in above-mentioned arbitrary embodiment, can also adopt the cable core l shown in Figure 13, cable core 1 comprises the member of loose sleeve pipe 12, central reinforce member 13 and wrapper material 15 that five inside comprise light transmitting fiber 11; Pine sleeve pipe 12 is stranded and extend axially along central reinforce member 13 around central reinforce member 13, and the wrapper material 15 of loose sleeve pipe 12 outer claddings makes loose sleeve pipe 12 positions relatively fixing.
Certainly, in above-mentioned arbitrary embodiment, can also adopt the cable core 1 shown in Figure 14, cable core 1 comprises the member of loose sleeve pipe 12, central reinforce member 13, filling member 14 and wrapper material 15 that four inside comprise light transmitting fiber 1l; Pine sleeve pipe 12 and filling member 14 are stranded and extend axially along central reinforce member 13 around central reinforce member 13, and the wrapper material 15 of loose sleeve pipe 12 outer claddings makes loose sleeve pipe 12 positions relatively fixing.
Certainly, in above-mentioned arbitrary embodiment, can also adopt the cable core l shown in Figure 15, cable core 1 comprises the member of loose sleeve pipe 12, central reinforce member 13, filling member 14 and wrapper material 15 that four inside comprise light transmitting fiber 11; The outer protective seam 16 that is extruded with of central reinforce member 13; Pine sleeve pipe 12 and filling member 14 are extruded with the central reinforce member 13 of protective seam 16 around outside stranded and extend axially along central reinforce member 13, and the wrapper material 15 of loose sleeve pipe 12 outer claddings makes loose sleeve pipe 12 positions relatively fixing.
Certainly,, in above-mentioned arbitrary embodiment, in the gap of described cable core l, can also fill material water-proof material.
Certainly,, in above-mentioned arbitrary embodiment, described cable core 1 at least comprises the member of loose sleeve pipe 12, central reinforce member 13 and wrapper material 15 that an inside comprises light transmitting fiber 11; Pine sleeve pipe 12 is stranded and extend axially along central reinforce member 13 around central reinforce member 13, and the wrapper material 15 of loose sleeve pipe 12 outer claddings makes loose sleeve pipe 12 positions relatively fixing.
Certainly, in above-mentioned arbitrary embodiment, between protective seam 4 and sheath 5, multilayer protective material can also be set, to realize better fibre-optic protection.
Certainly,, in above-mentioned arbitrary embodiment, described convex body can distribute symmetrical or asymmetrically along sheath 5 outer peripheral edges.
In above-mentioned arbitrary embodiment, on arbitrary xsect, the center of circle of the reinforcement in described convex body is positioned on the circumference that circular arc described above forms or periphery.
In above-mentioned arbitrary embodiment, on arbitrary xsect, described convex body is by arc section or the rectangular section of single-curvature or be made up of the arc section of two or two disparity curvatures.
In above-mentioned arbitrary embodiment, on arbitrary xsect, the center of circle of the reinforcement in described convex body is not equate or not etc. to the distance at convex body edge of surrounding this reinforcement.
In above-mentioned arbitrary embodiment, that the material of described reinforcement is metal or nonmetallic.
In above-mentioned arbitrary embodiment, described protective seam 4 is steel band or aluminium strip or waterstop or polyester belt or mica tape or nylon tape or water blocking yarn or polyester bundle yarn or nonwoven fabrics or glass fiber tape.
In above-mentioned arbitrary embodiment, described sheath 5 and the material of convex body are Low Density Polyethylene or medium density polyethylene or high density polyethylene or flame-proof polyethylene or low smoke and zero halogen tygon or low-smoke low-halogen tygon or smokeless halogen-free tygon or nylon or and resistance to electric track resistant jacket material.
In above-mentioned arbitrary embodiment, the thickness of described sheath 5 is for being more than or equal to 0.5mm and being less than or equal to 3.0mm.
In above-mentioned arbitrary embodiment, the diameter of the reinforcement in described convex body is for being more than or equal to 0.2mm and being less than or equal to 3.0mm.
In above-mentioned arbitrary embodiment, the length of the light transmitting fiber 11 in described loose sleeve pipe 12 be loose sleeve pipe 12 length 1.000-1.008 doubly.
Because convex body in the present invention protrudes from outside sheath 5 and reinforcement is positioned among convex body, therefore, compared with corresponding optical cable in industry standard, its restrictive coating thickness can dwindle greatly, not only save cost, and in inspection and construction, only need cut off convex body, easily stripping fiber optic cables with pincers; In addition, owing to being provided with reinforcement in sheath 5, therefore, central reinforce member 13 can adopt nonmetallic or diameter is less replaces, and also can not affect the mechanical stretching performance requirement of optical cable; Therefore, can greatly reduce the weight of the cost of optical cable, the external diameter that dwindles optical cable, minimizing optical cable; On the other hand, make the softness of optical cable better, make to construct more convenient; In addition, owing to being protruded from outside sheath 5 by convex body, and be distributed in that sheath 5 is integrated with sheath 5 around, therefore, can more effectively prevent external force extruding.
Understand specifically exemplary embodiment of the present and current preferred implementation herein, should be appreciated that the present invention conceives can implement to use by other various forms, they drop in protection scope of the present invention equally.
Claims (1)
1. a layer-stranding cable, it at least by be positioned at center cable core (1), be coated on the protective seam (4) outside cable core (1) and be positioned at sheath (5) outside protective seam (4) and form; On arbitrary xsect, the outer profile of described protective seam (4) is circular; Described cable core (1) at least comprises loose sleeve pipe (12), central reinforce member (13) and the wrapper material (15) that an inside comprises light transmitting fiber (11); Pine sleeve pipe (12) is stranded and extend axially along central reinforce member (13) around central reinforce member (13), and the wrapper material (15) of loose sleeve pipe (12) outer cladding makes loose sleeve pipe (12) position relatively fixing; On arbitrary xsect, the outer profile of described sheath (5) be by four sections of mutual discontinuous concentrics and with the circular arc of curvature be connected adjacent circular arc and outwardly convex body forms; In each convex body, comprise a reinforcements; Described sheath (5) is integral type structure with convex body; It is characterized in that:
On arbitrary xsect, the center of circle of the reinforcement in described convex body is positioned on the circumference of described sheath (5) outer peripheral edges circular arc formation, and the center of circle of the reinforcement in convex body is equal to the distance at the convex body edge that surrounds this reinforcement; Convex body distributes symmetrically along sheath (5) outer peripheral edges, and the angle of the line in the Center-to-Center reinforcement center of circle of adjacent convex body is mutually 90 degree; The length of the light transmitting fiber (11) in described loose sleeve pipe (12) be loose sleeve pipe (12) length 1.000-1.008 doubly; Temperature from-60 degrees Celsius be changed to+100 degrees Celsius time, the additional attenuation absolute value of the light transmitting fiber (11) in loose sleeve pipe (12) is 0.03dB/km to the maximum; The material of described reinforcement is metal or nonmetallic; Described protective seam (4) is steel band or aluminium strip or waterstop or polyester belt or mica tape or nylon tape or water blocking yarn or polyester bundle yarn or nonwoven fabrics or glass fiber tape; Described sheath (5) and the material of convex body are Low Density Polyethylene or medium density polyethylene or high density polyethylene or flame-proof polyethylene or low smoke and zero halogen tygon or low-smoke low-halogen tygon or smokeless halogen-free tygon or nylon or resistance to electric track resistant jacket material; The thickness of described sheath (5) is 0.5mm or 3.0mm; The diameter of the reinforcement in described convex body is 0.2mm or 3.0mm.
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 |
|---|---|---|---|
| CN201410465978.5A CN104181659B (en) | 2009-10-10 | 2009-10-10 | Layer-stranding cable |
| CN200910206138.6A CN101706601B (en) | 2009-10-10 | 2009-10-10 | Layer stranded fiber optical cable with reinforcer in sheath |
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 true CN104181659A (en) | 2014-12-03 |
| CN104181659B CN104181659B (en) | 2017-06-13 |
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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 |
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| CN104181659B (en) | 2017-06-13 |
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| C06 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| 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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