CN201965269U - Easy-to-separate skeleton optical-fiber-protected optical cable - Google Patents

Easy-to-separate skeleton optical-fiber-protected optical cable Download PDF

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Publication number
CN201965269U
CN201965269U CN2010206815713U CN201020681571U CN201965269U CN 201965269 U CN201965269 U CN 201965269U CN 2010206815713 U CN2010206815713 U CN 2010206815713U CN 201020681571 U CN201020681571 U CN 201020681571U CN 201965269 U CN201965269 U CN 201965269U
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CN
China
Prior art keywords
skeleton
optical fiber
optical
separate
easy
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Application number
CN2010206815713U
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Chinese (zh)
Inventor
庄喻韬
许增宾
叶明�
黄晓鹏
张立永
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杭州富通通信技术股份有限公司
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Priority to CN2010206815713U priority Critical patent/CN201965269U/en
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Publication of CN201965269U publication Critical patent/CN201965269U/en

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Abstract

The utility model discloses an easy-to-separate skeleton optical-fiber-protected optical cable, belonging to the technical field of communication, aiming at solving the problems that optical fibers or optical fiber ribbons in the existing skeleton optical cable are difficult to separate and construction is inconvenient. The easy-to-separate skeleton optical-fiber-protected optical cable comprises a bar skeleton. A plurality of optical fiber slots which extend towards the length direction of the skeleton are arranged on the skeleton and are circumferentially distributed on the cross section of the skeleton. A central reinforcement which is made of a material being different from the material of the skeleton is arranged in the center of the skeleton. The external side of the skeleton is sequentially wrapped with a waterproof layer, an aluminum-plastic composite tape and a sheath. A rip cord is distributed between the waterproof layer and the aluminum-plastic composite tape. Optical fibers or/and optical fiber ribbons are distributed in the optical fiber slots, wherein talcum powder is adsorbed on the surfaces of the optical fibers or/and the optical fiber ribbons. Since the talcum powder is adsorbed on the surfaces of the optical fibers or/and the optical fiber ribbons to reduce the surface friction of the optical fibers or the optical fiber ribbons, on one hand, stresses generated by the mutual effect among the optical fibers or/and the optical fiber ribbons are reduced, and on the other hand, the optical fibers can be easily separated one by one during continuous construction.

Description

A kind of skeleton fiber optic protection formula optical cable that is easy to separate
Technical field
The utility model relates to a kind of communications optical cable, is specifically related to the communications field.Simultaneously, as a kind of be the cable configuration of bearing structure with the skeleton, also can be used for other field.
Background technology
Now the mobile communication speed of development is surprising, because of its limited bandwidth, and factor such as terminal volume can not be too big, and display screen is limited, people still pursue the fixed terminal that performance is dominant relatively, wish to realize that Fiber to the home.Fiber-to-the-home glamour is that it has great bandwidth, but because signal attenuation, reasons such as four-wave mixing, fiber channel is used as yet fully, so transmission signals for the amount of flying growth, consider also that in the future communicating requirement reduces optical fiber unit and lay cost that the core number of optical cable has been had requirements at the higher level.
But slotted core cable is favored at most because of receiving optical fiber number in existing optical cable kind, and its dry type structure that has is extensive use of in distributory network under the historical background of " Internet of Things " especially for fibre junction provides great convenience simultaneously.But slotted core cable is owing to optical fiber concentration degree height, and having a major issue is skin-friction force.There is certain friction between the fibre ribbon, has stress each other, behind the stranding optical fiber parameters is had harmful effect.Mutual extrusion may cause optical fiber or fibre ribbon that harmful strain takes place between optical cable curved fiber or the fibre ribbon, and by reducing the friction factor on optical fiber or fibre ribbon surface, the mutual travelling performance of optical fiber or fibre ribbon in the time of then can increasing the optical cable bending, thus the harm that is harmful to strain effectively alleviated.
On the other hand, at present home market upper skeleton optical cable skeleton grooves major part all adopts rectangular configuration, as the optical cable of China's patent design of the patent No. 01249848.3.It is intensive relatively that this rectangular configuration is added in the skeleton grooves optical fiber, make optical fiber take out comparatively inconvenience, and during optical cable construction, optical fiber or fibre ribbon need be separated from cable core one by one so that be in the same place with other fused fiber splices on the link, so often very time-consuming, effort of the separation of optical fiber in the skeleton cable, reduce the separating property that friction between optical fiber or the fibre ribbon then can effectively improve optical fiber, reduce difficulty of construction, so the present invention is intended to improve optical fiber or the difficult problem of fibre ribbon separation in the slotted core cable by the friction that reduces between optical fiber, fibre ribbon.
The utility model content
The technical assignment of the technical problems to be solved in the utility model and proposition be overcome optical fiber in the existing slotted core cable or fibre ribbon separates difficult, construction inconvenience defective, the optical fiber that placement in a kind of groove is provided is or/and the skeleton fiber optic protection formula optical cable that fibre ribbon is easy to separate.
For this reason; the technical scheme that a kind of skeleton fiber optic protection formula optical cable that is easy to separate of the present utility model adopts is: it comprises the bar shaped skeleton; offer some optical fiber ducts that extend along the length direction of skeleton on the skeleton; described optical fiber duct is circumferential distribution on the cross section of skeleton; the center of described skeleton is provided with the central reinforce member different with the skeleton material; the outside of described skeleton is surrounded by water blocking layer successively; aluminium-plastic tape; sheath; also be distributed with between described water blocking layer and the aluminium-plastic tape and tear rope, it is characterized in that: laying surface adsorption in the described optical fiber duct has talcous optical fiber or/and fibre ribbon.
As the optimization technique measure: described optical fiber duct shape in the shape of a spiral distributes or the SZ type.Yarn is pricked around pricking one in the outside of described optical fiber duct, and described water blocking layer is positioned at the outside of described bundle yarn.Described optical fiber is or/and the talcous thickness on fibre ribbon surface is 35~125 microns.The width of described optical fiber duct oral area is greater than the width of bottom.The quantity of described optical fiber duct is 3~12.
The beneficial effects of the utility model are: by at optical fiber or/and the fibre ribbon surface adsorption has talcum powder to reduce the friction on optical fiber or fibre ribbon surface, reduced optical fiber so on the one hand or/and the stress that interacts and produced between the fibre ribbon makes also that on the other hand optical fiber is easier to be separated one by one when continuing construction.
Description of drawings
Fig. 1 is a kind of sectional view of skeleton of 4 optical fiber ducts, and the groove number that it shows cable duct is cable duct and rib target distribution situation during less than 6.
Fig. 2 is a kind of sectional view of skeleton of 8 cable ducts, and the groove number that it shows cable duct is cable duct and rib target distribution situation during greater than 6.
Fig. 3 is the sectional view of the optical cable that constitutes of a kind of skeleton with 6 cable ducts, and it shows the schematic cross-section of the skeleton fiber optic protection formula optical cable that is easy to separate of the present utility model.
Fig. 4 is the physical dimension synoptic diagram of fibre ribbon of the present utility model.
Number in the figure explanation: 1-rib mark; The 2-skeleton; The 3-fibre ribbon; The 4-central reinforce member; The 5-water blocking layer; 6-tears rope; The 7-aluminium-plastic tape; The 8-sheath; The 9-optical fiber duct.
Embodiment
Below in conjunction with Figure of description the utility model is described further.
The skeleton fiber optic protection formula optical cable that is easy to separate of the present utility model; as shown in Figure 3; it comprises bar shaped skeleton 2; offer some optical fiber duct 9(that extend along the length direction of skeleton on the skeleton 2 and Figure 1 shows that 4 optical fiber ducts; Figure 2 shows that 8 optical fiber ducts; Figure 3 shows that 6 optical fiber ducts); optical fiber duct 9 is circumferential distribution on the cross section of skeleton 2; the center of skeleton 2 is provided with the central reinforce member 4(central reinforce member 4 different with the skeleton material can use metal or nonmetallic materials); the outside of skeleton 2 is surrounded by water blocking layer 5 successively; aluminium-plastic tape 7; sheath 8; also be distributed with between water blocking layer 5 and plastic-aluminum combined 7 bands and tear rope 6, laying surface adsorption in the optical fiber duct 9 has talcous optical fiber or/and fibre ribbon 3.
Talcum powder is the powder of white or off-white color, fine, no grittiness; Hand has been touched greasy feeling; Odorless, tasteless; And in water, the acid of rare ore deposit or rare alkali hydroxide solution, all do not dissolve.Good physics, chemical characteristics such as talcum has lubricity, anti-sticks, helps that stream, refractability, resistance to acid, insulativity, fusing point height, chemical torpescence, covering power are good, softness, good luster, absorption affinity are strong, because the crystal structure of talcum is stratiform, so have the trend that easily splits into scale and special slip.These advantageous characteristic just in time can be used for eliminating friction stree between the fibre ribbon, and do not damage other every index parameter of optical fiber.
In the utility model, the talcous particle diameter of optical fiber and fibre ribbon surface-coated is at 1~5 micron, and talcous boron nitride content is for being not less than 72%.
Optical fiber is or/and fibre ribbon is inserted optical fiber duct by unwrapping wire and pulley, and in this process by the talcum powder flusher, talcum powder is sprayed at optical fiber duct and optical fiber or/and the fibre ribbon surface, optical fiber is or/and fibre ribbon can adsorb a certain amount of talcum powder under the capillary effect, then use dust sucking plant to remove unnecessary talcum powder, skeleton is kept clean.
As the further of technique scheme improved and replenish, the utility model also comprises following additional technical characterictic, according to specifically acting on they are selected for use on the described technical scheme of epimere when implementing the utility model.
Optical fiber duct 9 shape in the shape of a spiral distributes or the SZ type.
Yarn is pricked around pricking one in the outside of optical fiber duct 9, and water blocking layer 5 is positioned at the outside of pricking yarn.
Optical fiber is or/and the talcous thickness on fibre ribbon 3 surfaces is 35~125 microns.
The width of optical fiber duct 9 oral areas is greater than the width of bottom.
The quantity of optical fiber duct 9 is 3~12.
Below specifically tell about a kind of pipeline laying or the common built on stilts small-sized skeleton optical cable of the comprehensive sheath of plastic-aluminum that lays,, narrate respectively with regard to the requirement and the main technologic parameters of three road basic production operations.The fiber number of this optical cable is 72~96 cores, and the optical fiber specification is the single-mode fiber of diameter 250 μ m; High density polyethylene skeleton with 4 optical fiber ducts (SZ strand to), with steel strand wires as central reinforce member 4.
Optical fiber serves as that band is inserted in the optical fiber duct 9 with 6 cores, and wrapped nonwoven fabric belts is indulged alclad plastic composite strip 7 again as water blocking layer 5 outside skeleton 2; Extrude low density polyethylene sheath 8 at last.
Fibre ribbon is or/and optical fiber 3 adds a procedure before winding displacement is neatly inserted bar-shaped trough; promptly use the talcum powder spray-coating device to blow talcum powder at optical fiber or fibre ribbon 3 surfaces; optical fiber duct can not adhere to talcum powder by the cylinder protection in this process; and fibre ribbon is enclosed a certain amount of talcum powder by this device rear surface; after follow-up process dust sucking plant is removed unnecessary talcum powder; just finish making talcum powder be adsorbed on fibre ribbon surface operation, enter the skeleton grooves fibre ribbon and insert operation.
Fig. 4 is the physical dimension synoptic diagram of fibre ribbon, and the physical dimension of fibre ribbon should be not more than the described data of following table (the mark o among Fig. 4 is a datum line).
The main structure parameters of present embodiment 96 core crabs is as follows: reinforcement diameter 2.6mm; Skeleton external diameter 7.6mm; Bottom land external diameter 5.8mm; Skeleton grooves pitch 20mm; 300 ° of skeleton grooves helix angles.
Next be the stranding operation, the stranding operation adopts conventional methods, but factice for filling not, and skeleton grooves 2 is outer pricks yarn around pricking one, and wrapped again waterstop 5 gets final product.
Carry out sheath then and coat operation, this operation also adopts conventional methods, but sheath operation factice for filling not places and tears 6 one in rope.
Finish after the sheath operation and promptly obtain the described optical cable of the utility model.
This optical cable, stranding operation, sheath operation be factice for filling not, so optical cable is a dry type.
The present embodiment cable configuration is the dry type structure, be convenient to optical cable and tear other type optical cable butt joint that back and identical core are counted core structure, being fit to and the cooperating of the commercial building that enters the sub-district, signal being counted optical cable from distributory network with less core cause and prop up the road network, carry out FTTH, the FTTB business.
Need to prove: above embodiment is used for the utility model is described, should not regard as qualification of the present utility model, as long as in usable range of the present utility model, all will drop in the scope of the utility model claims variation, the modification of the above embodiment.

Claims (6)

1. skeleton fiber optic protection formula optical cable that is easy to separate; comprise bar shaped skeleton (2); offer some optical fiber ducts (9) that extend along the length direction of skeleton on the skeleton (2); described optical fiber duct (9) is circumferential distribution on the cross section of skeleton (2); the center of described skeleton (2) is provided with the central reinforce member (4) different with the skeleton material; the outside of described skeleton (2) is surrounded by water blocking layer (5) successively; aluminium-plastic tape (7); sheath (8); also be distributed with between described water blocking layer (5) and plastic-aluminum combined (7) band and tear rope (6), it is characterized in that: laying surface adsorption in the described optical fiber duct (9) has talcous optical fiber or/and fibre ribbon (3).
2. a kind of skeleton fiber optic protection formula optical cable that is easy to separate according to claim 1 is characterized in that: described optical fiber duct (9) shape in the shape of a spiral distributes or the SZ type.
3. a kind of skeleton fiber optic protection formula optical cable that is easy to separate according to claim 1 and 2 is characterized in that: yarn is pricked around pricking one in the outside of described optical fiber duct (9), and described water blocking layer (5) is positioned at the outside of described bundle yarn.
4. a kind of skeleton fiber optic protection formula optical cable that is easy to separate according to claim 1 is characterized in that: described optical fiber is or/and the talcous thickness on fibre ribbon (3) surface is 35~125 microns.
5. a kind of skeleton fiber optic protection formula optical cable that is easy to separate according to claim 1, it is characterized in that: the width of described optical fiber duct (9) oral area is greater than the width of bottom.
6. a kind of skeleton fiber optic protection formula optical cable that is easy to separate according to claim 1, it is characterized in that: the quantity of described optical fiber duct (9) is 3~12.
CN2010206815713U 2010-12-27 2010-12-27 Easy-to-separate skeleton optical-fiber-protected optical cable CN201965269U (en)

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CN201965269U true CN201965269U (en) 2011-09-07

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103093886A (en) * 2013-01-28 2013-05-08 蒋菊生 Spiral framework and cables with spiral framework adopted
CN104464922A (en) * 2013-01-28 2015-03-25 蒋菊生 Spiral type framework for cable
CN104599758A (en) * 2013-01-28 2015-05-06 蒋菊生 Cable using spiral type framework
CN104599757A (en) * 2013-01-28 2015-05-06 蒋菊生 Cross frame and cable with same
CN104599759A (en) * 2013-01-28 2015-05-06 蒋菊生 Cable using screw type frame
CN104616779A (en) * 2013-01-28 2015-05-13 蒋菊生 Cable using spiral skeleton
CN104616780A (en) * 2013-01-28 2015-05-13 蒋菊生 Spiral type framework used for cable
CN104616778A (en) * 2013-01-28 2015-05-13 蒋菊生 Cable using spiral skeleton
CN105427942A (en) * 2013-01-28 2016-03-23 朱保生 Convenient-construction cable with three-trough frame
CN105445874A (en) * 2015-11-25 2016-03-30 长城信息产业股份有限公司 Double-layer loose sleeve optical cable and preparation method
CN105700091A (en) * 2016-04-14 2016-06-22 杭州富通通信技术股份有限公司 Optical cable

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103093886A (en) * 2013-01-28 2013-05-08 蒋菊生 Spiral framework and cables with spiral framework adopted
CN104464922A (en) * 2013-01-28 2015-03-25 蒋菊生 Spiral type framework for cable
CN104599758A (en) * 2013-01-28 2015-05-06 蒋菊生 Cable using spiral type framework
CN104599757A (en) * 2013-01-28 2015-05-06 蒋菊生 Cross frame and cable with same
CN104599759A (en) * 2013-01-28 2015-05-06 蒋菊生 Cable using screw type frame
CN104616779A (en) * 2013-01-28 2015-05-13 蒋菊生 Cable using spiral skeleton
CN104616780A (en) * 2013-01-28 2015-05-13 蒋菊生 Spiral type framework used for cable
CN104616778A (en) * 2013-01-28 2015-05-13 蒋菊生 Cable using spiral skeleton
CN103093886B (en) * 2013-01-28 2015-06-10 国网浙江杭州市萧山区供电公司 Cables with spiral framework adopted
CN105427942A (en) * 2013-01-28 2016-03-23 朱保生 Convenient-construction cable with three-trough frame
CN104616779B (en) * 2013-01-28 2016-08-24 国网山东省电力公司单县供电公司 A kind of cable using spiral skeleton
CN105469863A (en) * 2013-01-28 2016-04-06 朱保生 Cable convenient to construct
CN104599758B (en) * 2013-01-28 2016-08-24 国网山东省电力公司烟台市牟平区供电公司 A kind of cable using spiral skeleton
CN104599757B (en) * 2013-01-28 2016-07-13 国网山东省电力公司聊城供电公司 A kind of crossing skeleton and adopt the cable of this skeleton
CN104599759B (en) * 2013-01-28 2016-08-24 北京市重型电缆厂 A kind of cable using spiral skeleton
CN105445874A (en) * 2015-11-25 2016-03-30 长城信息产业股份有限公司 Double-layer loose sleeve optical cable and preparation method
CN105700091A (en) * 2016-04-14 2016-06-22 杭州富通通信技术股份有限公司 Optical cable
CN105700091B (en) * 2016-04-14 2018-11-16 杭州富通通信技术股份有限公司 Optical cable

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Granted publication date: 20110907