CN101706606A - Center beam tube type optical cable with reinforcement strips - Google Patents
Center beam tube type optical cable with reinforcement strips Download PDFInfo
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- CN101706606A CN101706606A CN200910261421A CN200910261421A CN101706606A CN 101706606 A CN101706606 A CN 101706606A CN 200910261421 A CN200910261421 A CN 200910261421A CN 200910261421 A CN200910261421 A CN 200910261421A CN 101706606 A CN101706606 A CN 101706606A
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Abstract
The invention relates to the technical field of optical cables, in particular to a center beam tube type optical cable with reinforcement strips, which mainly comprises a center beam tube (4), a protective layer (3), a sheath layer (1) and reinforcement strips (2), wherein the protective layer (3) is coated outside the center beam tube, the sheath layer (1) is positioned outside the protective layer, and the reinforcement strips (2) are positioned in the sheath layer; a plurality of optical guide fibers (5) are arranged in the center beam tube; the center beam tube type optical cable with the reinforcement strip is characterized in that the sheath layer comprises convex ribs (11) and protection layers (12), which are distributed in a mutually staggered way; on any one cross section, the edges of the protection layers are arranged on the same circumference, the edges of the convex ribs are also arranged on the same circumference, a circle in which the edges of the protection layers are arranged is concentric to a circle in which the edges of the convex ribs are arranged, and the external diameter of the circle in which the edges of the convex ribs are arranged is greater than that of the circle in which the edges of the protection layers are arranged; and at least one part of the reinforcement strips (2) is positioned in the convex ribs (11). The invention has the advantages of small occupied space, convenient stripping, little material consumption and low cost.
Description
Technical field
The present invention relates to the optical cable technology field, particularly a kind of central beam tube type optical cable with stiffener.
Background technology
Optical cable is used by all trades and professions both domestic and external, and the higher central beam tube type optical cable of cost performance commonly used at present has GYXTW type, GYDXTW type, GYXTEW type; And similar type: as GYXTZW, GYDXTZW, GYXTZEW type; These optical cables are that the industry standard that meets the The People's Republic of China Ministry of Posts and Telecommunications " YD/T 769-2003 core net with optical cable-central beam tube type communication outdoor optical cable " reaches the requirement of " YD/T 981.2-1998 Access Network optical fibre band optical cable part 2: central beam tube type "; Their common feature is that many light transmitting fibers or many optical fiber ribbons are inserted in the center beam tube; this center beam tube is positioned at optical cable central authorities; some protective seams are covered in center beam tube outsourcing, place parallel steel wire outside protective seam, and steel wire, center beam tube and protective seam are placed in the outer jacket.The optical cable of this structure is owing to stipulated in the standard that the steel wire edge is 1mm to the nominal range at sheath edge; In order to reach the mechanical property requirement of optical cable, the reinforcement of optical cable itself also needs minimum external diameter value; In addition, the security in order to produce often also needs to leave certain space between reinforcement and the protective seam; Therefore, in order to meet These parameters, the restrictive coating of this class optical cable is often thicker, and minimum at present thickness also more than 2.2mm, like this, has just increased the consumption of cable jacket widely, has strengthened the cost of optical cable.
In view of the foregoing, name is called: the special-shaped central tubular optical cable of strengthening; Notification number is: CN200950171Y; The patent No. is: 200620076340.3 Chinese invention patent, a kind of central tubular optical cable that is used for telecommunication transmission system is disclosed, it comprises cable core and is coated on cable core outer outer jacket and reinforcement, cable core comprises optical waveguide, the medium that blocks water, center sleeve, water blocking layer, water blocking layer is coated on outside the center sleeve, in the optical waveguide centering sleeve pipe, the medium that blocks water is filled in the space between optical waveguide and the center sleeve, characteristics are that described reinforcement is strip and has one piece at least, are arranged between the inboard of the outside of cable core and outer jacket.This invention has the advantage that external diameter is littler, tensile strength is high, moulding is easy, yield rate is high, cheap really.But,, therefore, peel off quite inconvenience of optical cable because reinforcement is positioned at the sheath inside of whole circle; In addition, also there is the possibility of reduction in the cost of this optical cable.
Summary of the invention
The objective of the invention is to address the above problem, a kind of central beam tube type optical cable with stiffener is provided, it is realized by the following technical solutions:
The central beam tube type optical cable of band stiffener, it mainly by center beam tube 4, the stiffener 2 that is coated on protective seam 3 outside the beam tube of center, is positioned at the restrictive coating 1 outside the protective seam and is positioned at restrictive coating constituted; Many light transmitting fibers 5 are arranged in the beam tube of center; It is characterized in that: described restrictive coating 1 is made of the fin 11 and the sheath 12 of interlaced distribution; On arbitrary xsect, sheath 12 edges are on same circumference, the edge of fin 11 is also on same circumference, and the residing circle in sheath 12 edges is concentric with the residing circle in fin 11 edges, and the external diameter of the residing circle in fin 11 edges is greater than the external diameter of the residing circle in sheath 12 edges; Described stiffener 2 has at least a part to be arranged in fin 11.
The central beam tube type optical cable of above-mentioned described band stiffener, its feature also is: described fin is distributed on the restrictive coating symmetrical or asymmetricly.
The central beam tube type optical cable of above-mentioned described band stiffener, its feature also is: described stiffener is rectangular-shaped or bowed shape; Described stiffener is metal or nonmetallic.
Further, the central beam tube type optical cable of above-mentioned described band stiffener, when described stiffener is bowed shape, on arbitrary xsect, it is characterized in that described arc in, the extended line of the line at the center of two the longest strings is through the center in this cross section.
The central beam tube type optical cable of above-mentioned described band stiffener, its feature also is; When described light transmitting fiber has many, be placed within the beam tube of center with form scattered or pencil or band shape.
The central beam tube type optical cable of above-mentioned described band stiffener, its feature also is: described light transmitting fiber is single-mode fiber or multimode optical fiber.
The central beam tube type optical cable of above-mentioned described band stiffener is characterized in that: also be filled with water-proofing powder or greasy for preventing water in the gap of described center beam tube.
The central beam tube type optical cable of above-mentioned described band stiffener, its feature also is: the material of described center beam tube is polybutylene terephthalate or modified polypropene.
The central beam tube type optical cable of above-mentioned described band stiffener, its feature also is: described protective seam is waterstop or nonwoven fabrics or water blocking yarn or aramid yarn or polyester belt or mica tape or glass fiber tape.
Further, the central beam tube type optical cable of above-mentioned described band stiffener, its feature also is: described protective seam is divided into two-layer, and internal layer is waterstop or nonwoven fabrics or water blocking yarn or aramid yarn or polyester belt or mica tape, and skin is composite steel band or compound aluminium strip.
The central beam tube type optical cable of above-mentioned described band stiffener, its feature also is: the material of described restrictive coating is plastics, preferred low density polyethylene or medium density polyethylene or high density polyethylene or low smoke and zero halogen tygon or low-smoke low-halogen tygon or or smokeless halogen-free polyvinyl.
The central beam tube type optical cable of above-mentioned described band stiffener, its feature also is: the one-tenth-value thickness 1/10 of sheath 12 is 0.3mm-1.2mm.
Among the present invention, fin protrudes from sheath, and stiffener has at least a part to be arranged in fin, and only between 0.3-1.2mm, therefore, under the situation that guarantees machinery and other performance, this optical cable has the material consumption of restrictive coating still less to the thickness range of sheath; The less space volume takies, and therefore, the cable length that can coil on same reel tool is longer; Transportation cost is more saved; In addition, because stiffener at least a portion is arranged in fin, and fin protrudes from sheath, and therefore, peeling off of optical cable is convenient.
The present invention have space hold little, be convenient to out stripping, material consumption is few, cost is low advantage.
Description of drawings
Fig. 1 for the part of the invention process example one open after the stripping schematic perspective view;
Fig. 2 is the front view of Fig. 1;
Fig. 3 for the part of the invention process example two open after the stripping schematic perspective view;
Fig. 4 is the front view of Fig. 3.
Embodiment
Embodiment one
See also Fig. 1 and Fig. 2, the central beam tube type optical cable of band stiffener, it mainly by center beam tube 4, the stiffener 2 that is coated on protective seam 3 outside the beam tube of center, is positioned at the restrictive coating 1 outside the protective seam and is positioned at restrictive coating constituted; Six roots of sensation light transmitting fiber 5 is arranged in the beam tube of center; It is characterized in that: described restrictive coating 1 is made of the fin 11 and the sheath 12 of interlaced distribution; On arbitrary xsect, sheath 12 edges are on same circumference, the edge of fin 11 is also on same circumference, and the residing circle in sheath 12 edges is concentric with the residing circle in fin 11 edges, and the external diameter of the residing circle in fin 11 edges is greater than the external diameter of the residing circle in sheath 12 edges; Some is arranged in fin 11 described stiffener 2; Two fins are distributed on the restrictive coating symmetrically.
Embodiment two
See also Fig. 3 and Fig. 4, the central beam tube type optical cable of band stiffener, it mainly by center beam tube 4, the stiffener 2 that is coated on protective seam 3 outside the beam tube of center, is positioned at the restrictive coating 1 outside the protective seam and is positioned at restrictive coating constituted; Six roots of sensation light transmitting fiber 5 is arranged in the beam tube of center; It is characterized in that: described restrictive coating 1 is made of the fin 11 and the sheath 12 of interlaced distribution; On arbitrary xsect, sheath 12 edges are on same circumference, the edge of fin 11 is also on same circumference, and the residing circle in sheath 12 edges is concentric with the residing circle in fin 11 edges, and the external diameter of the residing circle in fin 11 edges is greater than the external diameter of the residing circle in sheath 12 edges; Some is arranged in fin 11 described stiffener 2; Four fins are distributed on the restrictive coating symmetrically.
Among above-mentioned arbitrary embodiment, described fin also can be distributed on the restrictive coating asymmetricly.
Among above-mentioned arbitrary embodiment, described stiffener can be rectangular-shaped or bowed shape; Described stiffener is metal or nonmetallic.
Among above-mentioned arbitrary embodiment, when described stiffener is bowed shape, on arbitrary xsect, described arc in, the extended line of the line at the center of two the longest strings is through the center in this cross section.
Among above-mentioned arbitrary embodiment, when described light transmitting fiber has many, be placed within the beam tube of center with form scattered or pencil or band shape.
Among above-mentioned arbitrary embodiment, described light transmitting fiber is single-mode fiber or multimode optical fiber.
Among above-mentioned arbitrary embodiment, also be filled with water-proofing powder or greasy for preventing water in the gap of described center beam tube.
Among above-mentioned arbitrary embodiment, the material of described center beam tube is polybutylene terephthalate or modified polypropene.
Among above-mentioned arbitrary embodiment, described protective seam is waterstop or nonwoven fabrics or water blocking yarn or aramid yarn or polyester belt or mica tape or glass fiber tape.
Among above-mentioned arbitrary embodiment, described protective seam is divided into two-layer, and internal layer is waterstop or nonwoven fabrics or water blocking yarn or aramid yarn or polyester belt or mica tape, and skin is composite steel band or compound aluminium strip.
Among above-mentioned arbitrary embodiment, the material of described restrictive coating is plastics, preferred low density polyethylene or medium density polyethylene or high density polyethylene or low smoke and zero halogen tygon or low-smoke low-halogen tygon or or smokeless halogen-free polyvinyl.
Among above-mentioned arbitrary embodiment, the one-tenth-value thickness 1/10 of described sheath 12 is 0.3mm-1.2mm.
Among above-mentioned arbitrary embodiment, described stiffener 2 can all be arranged in fin 11.
Among the present invention, fin protrudes from sheath, and stiffener has at least a part to be arranged in fin, and only between 0.3-1.2mm, therefore, under the situation that guarantees machinery and other performance, this optical cable has the material consumption of restrictive coating still less to the thickness range of sheath; The less space volume takies, and therefore, the cable length that can coil on same reel tool is longer; Transportation cost is more saved; In addition, because stiffener at least a portion is arranged in fin, and fin protrudes from sheath, and therefore, peeling off of optical cable is convenient.
The present invention have space hold little, be convenient to out stripping, material consumption is few, cost is low advantage.
This paper understands exemplary embodiment of the present invention and present preferred implementation specifically, should be appreciated that the present invention conceives can implement utilization by other various forms, and they drop in protection scope of the present invention equally.
Claims (10)
1. the central beam tube type optical cable of band stiffener, it mainly by center beam tube (4), the stiffener (2) that is coated on protective seam (3) outside the beam tube of center, is positioned at the restrictive coating (1) outside the protective seam and is positioned at restrictive coating constituted; Many light transmitting fibers (5) are arranged in the beam tube of center; It is characterized in that: described restrictive coating (1) is made of the fin (11) and the sheath (12) of interlaced distribution; On arbitrary xsect, sheath (12) edge is on same circumference, the edge of fin (11) is also on same circumference, and the residing circle in sheath (12) edge is concentric with the residing circle in fin (11) edge, and the external diameter of the residing circle in fin (11) edge is greater than the external diameter of the residing circle in sheath (12) edge; Described stiffener (2) has at least a part to be arranged in fin (11).
2. the central beam tube type optical cable of band stiffener according to claim 1 is characterized in that: described fin is distributed on the restrictive coating symmetrical or asymmetricly.
3. the central beam tube type optical cable of band stiffener according to claim 1 is characterized in that: described stiffener is rectangular-shaped or bowed shape; Described stiffener is metal or nonmetallic.
4. the central beam tube type optical cable of band stiffener according to claim 3, it is characterized in that: when described stiffener is bowed shape, on arbitrary xsect, it is characterized in that described arc in, the extended line of the line at the center of two the longest strings is through the center in this cross section.
5. the central beam tube type optical cable of band stiffener according to claim 1 is characterized in that: when described light transmitting fiber has many, be placed within the beam tube of center with form scattered or pencil or band shape; Described light transmitting fiber is single-mode fiber or multimode optical fiber.
6. the central beam tube type optical cable of band stiffener according to claim 1 is characterized in that: also be filled with water-proofing powder or greasy for preventing water in the gap of described center beam tube; The material of described center beam tube is polybutylene terephthalate or modified polypropene.
7. the central beam tube type optical cable of band stiffener according to claim 1 is characterized in that: described protective seam is waterstop or nonwoven fabrics or water blocking yarn or aramid yarn or polyester belt or mica tape or glass fiber tape.
8. the central beam tube type optical cable of band stiffener according to claim 1 is characterized in that: described protective seam is divided into two-layer, and internal layer is waterstop or nonwoven fabrics or water blocking yarn or aramid yarn or polyester belt or mica tape, and skin is composite steel band or compound aluminium strip.
9. the central beam tube type optical cable of band stiffener according to claim 1, it is characterized in that: the material of described restrictive coating is plastics, preferred low density polyethylene or medium density polyethylene or high density polyethylene or low smoke and zero halogen tygon or low-smoke low-halogen tygon or or smokeless halogen-free polyvinyl.
10. the central beam tube type optical cable of band stiffener according to claim 1 is characterized in that: the one-tenth-value thickness 1/10 of described sheath is 0.3mm-1.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910261421A CN101706606A (en) | 2009-12-11 | 2009-12-11 | Center beam tube type optical cable with reinforcement strips |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910261421A CN101706606A (en) | 2009-12-11 | 2009-12-11 | Center beam tube type optical cable with reinforcement strips |
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| Publication Number | Publication Date |
|---|---|
| CN101706606A true CN101706606A (en) | 2010-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910261421A Pending CN101706606A (en) | 2009-12-11 | 2009-12-11 | Center beam tube type optical cable with reinforcement strips |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102023359A (en) * | 2011-01-20 | 2011-04-20 | 汕头高新区奥星光通信设备有限公司 | All-dielectric central tube type optical cable |
| CN103472552A (en) * | 2013-09-30 | 2013-12-25 | 南京烽火藤仓光通信有限公司 | Optical cable |
| CN105785528A (en) * | 2014-06-26 | 2016-07-20 | 尹红 | Nonmetal optical cable capable of preventing lightening |
| CN107589503A (en) * | 2017-09-28 | 2018-01-16 | 东莞市松研智达工业设计有限公司 | A kind of antidetonation optical cable |
-
2009
- 2009-12-11 CN CN200910261421A patent/CN101706606A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102023359A (en) * | 2011-01-20 | 2011-04-20 | 汕头高新区奥星光通信设备有限公司 | All-dielectric central tube type optical cable |
| CN103472552A (en) * | 2013-09-30 | 2013-12-25 | 南京烽火藤仓光通信有限公司 | Optical cable |
| CN103472552B (en) * | 2013-09-30 | 2016-01-20 | 南京华信藤仓光通信有限公司 | A kind of optical cable |
| CN105785528A (en) * | 2014-06-26 | 2016-07-20 | 尹红 | Nonmetal optical cable capable of preventing lightening |
| CN105785528B (en) * | 2014-06-26 | 2019-01-01 | 湖南神通光电科技有限责任公司 | A kind of non-metallic optical fiber cables that can be anti-lightning strike |
| CN107589503A (en) * | 2017-09-28 | 2018-01-16 | 东莞市松研智达工业设计有限公司 | A kind of antidetonation optical cable |
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Application publication date: 20100512 |