CN105785528B - A kind of non-metallic optical fiber cables that can be anti-lightning strike - Google Patents
A kind of non-metallic optical fiber cables that can be anti-lightning strike Download PDFInfo
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- CN105785528B CN105785528B CN201610069195.4A CN201610069195A CN105785528B CN 105785528 B CN105785528 B CN 105785528B CN 201610069195 A CN201610069195 A CN 201610069195A CN 105785528 B CN105785528 B CN 105785528B
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/4434—Central member to take up tensile loads
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/44384—Means specially adapted for strengthening or protecting the cables the means comprising water blocking or hydrophobic materials
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Light Guides In General And Applications Therefor (AREA)
- Insulated Conductors (AREA)
Abstract
The invention belongs to technical field of cables; it is related to a kind of non-metallic optical fiber cables that can be anti-lightning strike, includes positioned at the center reinforcemen in optical cable center, the Loose tube for being twisted except centrally disposed reinforcer with one-way or bi-directional spiral and including more optical fibers, protective layer that Loose tube is enveloped and the restrictive coating except protective layer；It is characterized in that having sheath, non-metallic and transition zone between the protective layer and restrictive coating; sheath extrusion molding is coated on except protective layer; non-metallic is located at except sheath and closes sheath; transition zone between non-metallic and restrictive coating, non-metallic by coating, it is in coating and arranged in parallel and be not in contact with each other and more increase parts that axis is in the same plane are constituted；The invention also discloses its production methods.The present invention have it is following main the utility model has the advantages that speed of production faster, more easy to produce, product qualified rate is higher, cost is lower, equipment investment is less, the versatility of non-metallic is stronger.
Description
The application is title are as follows: a kind of non-metallic optical fiber cables and preparation method thereof, the applying date are as follows: 06 month 2014 26 days, Shen
Please number are as follows: the divisional application of 201410293929.8 patent of invention.
Technical field
The invention belongs to technical field of cables, more particularly, to a kind of non-metallic optical fiber cables that can be anti-lightning strike and its production side
Method.
Background technique
Non-metallic optical fiber cables due to its not metal-containing material, it is light-weight, not by thunder and lightning interference, construction in or work in do not need
Ground connection, therefore, by the favor of user；However, existing non-metallic optical fiber cables generally use to reach the requirement of tensile resistence
Aramid yarn is realized as surrounding reinforcer, since aramid yarn is more expensive, is known as the saying of " soft gold ", therefore this mode increases
The cost of optical cable is added.For this purpose, domestic made a large amount of research for the substitute of aramid fiber reinforcer and be applied in optical cable.
Such as: Publication No. CN102023359A, title are as follows: a kind of Chinese patent of all dielectric central tube type optical cable, including central tube, light
Fine unit, optical fiber ointment, enhancement layer and oversheath, fiber unit be set to central tube in, optical fiber ointment be filled in fiber unit with
In gap between central tube, oversheath is coated on the outside of central tube, and enhancement layer is set between central tube and oversheath, special
Sign is: the enhancement layer is fiberglass reinforced plastics band or glass fiber yarn；It further include that at least a pair is made of dielectric material
Reinforcer, reinforcer along fiber unit length direction be set to oversheath in；Due to adding in its fiberglass reinforced plastics band
Strong part be it is single, be very unlikely to that brake forming, product qualified rate be extremely low and the anti-torsion and bending resistance of optical cable in production
Can be very poor, Industry code requirements are not achieved.
Publication No. CN102590967A, title are as follows: in a kind of patent of leading in cable, realized using more intensive aspects
Withdrawing performance is reinforced and improved to pulling force, is suitable for minor diameter optical cable.
Publication No. CN102662220A, title are as follows: it is a kind of pine jacket layer twist Full-dry optical cable and manufacturing method China
Patent, the Full-dry optical cable that wherein this pine jacket layer twists, comprising: cable core, the sheath for being set in cable core outer surface are equipped in the cable core
The Loose tube for wrapping up optical fiber, is equipped with two-sided waterstop between the cable core and sheath, the two-sided waterstop outer surface spiral is wrapped
There are glass fiber yarn or aramid yarn, tear rope is equipped on the inside of the glass fiber yarn or aramid yarn；Water blocking yarn is equipped in the Loose tube,
Water blocking yarn is provided in the gap of the Loose tube and cable core.Full-dry optical cable uses the dry type material water-proof material of lighter in weight, makes
The weight of optical cable is mitigated significantly.Meanwhile using the material water-proof material of dry type after, construction personnel only need with scissors can be very
Fastly and very easily optical fiber is taken out and carry out welding, accelerate construction speed, decreases the use of cleaning consumables.Separately
Outside, the intensity of optical cable is strengthened in the wrapped glass fiber yarn of two-sided waterstop outer surface spiral or aramid yarn；It is also to use
The mode of aramid yarn or glass fiber yarn realizes, and is spiral is wrapped, higher cost, and needs complicated lapping equipment.
Summary of the invention
To solve the above-mentioned problems, the purpose of the present invention is disclosing a kind of non-metallic optical fiber cables that can be anti-lightning strike, further
Its production method is disclosed, they adopt the following technical solutions to realize.
In 1st embodiment of the invention, a kind of non-metallic optical fiber cables, include positioned at optical cable center center reinforcemen, with
One-way or bi-directional spiral is twisted except centrally disposed reinforcer and includes the Loose tube of more optical fibers, positioned at adjacent pine
Outer gasket for packing in the external series gap of casing, the protective layer that outer gasket for packing and Loose tube are enveloped and except protective layer
Restrictive coating；It is characterized in that have between the protective layer and restrictive coating by the closed non-metallic of protective layer, non-metallic by
It is coating, in coating and arranged in parallel and be not in contact with each other and more increase part structures that axis is in the same plane
At；Or non-metallic by coating, in coating and it is arranged in parallel and be not in contact with each other and axis be located at it is same flat
Multiple reinforcement holes and more increase parts in face are constituted, and have an increase part in each reinforcement hole.
In 2nd embodiment of the invention, a kind of non-metallic optical fiber cables, include positioned at optical cable center center reinforcemen, with
One-way or bi-directional spiral is twisted except centrally disposed reinforcer and includes the Loose tube of more optical fibers, coats Loose tube
Protective layer firmly and the restrictive coating except protective layer；It is characterized in that having between the protective layer and restrictive coating will protect
The closed non-metallic of sheath, non-metallic by coating, it is in coating and arranged in parallel and be not in contact with each other and axis
The more increase parts that line is in the same plane are constituted；Or non-metallic is by coating, in coating and be parallel to each other
It is arranged and is not in contact with each other and multiple reinforcement holes that axis is in the same plane and more increase parts are constituted, each reinforcement
There is an increase part in hole.
In 3rd embodiment of the invention, a kind of non-metallic optical fiber cables, include positioned at optical cable center center reinforcemen, with
One-way or bi-directional spiral is twisted except centrally disposed reinforcer and includes the Loose tube of plurality of ribbons, positioned at adjacent pine set
Outer gasket for packing in the external series gap of pipe, the protective layer that outer gasket for packing and Loose tube are enveloped and the shield except protective layer
Jacket layer has more optical fibers in every fibre ribbon；It is characterized in that having sheath between the protective layer and restrictive coating
And non-metallic, sheath extrusion molding are coated on except protective layer, non-metallic is between sheath and restrictive coating and by interior shield
Layer closing, non-metallic by coating, in coating and it is arranged in parallel and be not in contact with each other and axis be located at it is same flat
More increase parts in face are constituted；Or non-metallic by coating, it is in coating and arranged in parallel and do not connect mutually
The multiple reinforcement holes and more increase parts that touching and axis are in the same plane are constituted, and have one in each reinforcement hole
Increase part.
In 4th embodiment of the invention, a kind of non-metallic optical fiber cables, include positioned at optical cable center center reinforcemen, with
One-way or bi-directional spiral is twisted except centrally disposed reinforcer and includes the Loose tube of more optical fibers, positioned at adjacent pine
Outer gasket for packing in the external series gap of casing, the protective layer that outer gasket for packing and Loose tube are enveloped and except protective layer
Restrictive coating；It is characterized in that having sheath, non-metallic and transition zone, sheath extrusion molding between the protective layer and restrictive coating
It is coated on except protective layer, non-metallic is located at except sheath and closes sheath, and transition zone is located at non-metallic and shield
Between jacket layer, non-metallic by coating, in coating and it is arranged in parallel and be not in contact with each other and axis be located at it is same
More increase parts in plane are constituted；Or non-metallic by coating, be located at coating in and it is arranged in parallel and mutually not
The multiple reinforcement holes and more increase parts that contact and axis are in the same plane are constituted, and have one in each reinforcement hole
Root increases part.
In 5th embodiment of the invention, a kind of non-metallic optical fiber cables that can be anti-lightning strike include the center positioned at optical cable center
Reinforcer, is incited somebody to action at the Loose tube for being twisted except centrally disposed reinforcer with one-way or bi-directional spiral and including more optical fibers
The protective layer that Loose tube envelopes and the restrictive coating except protective layer；It is characterized in that the protective layer and restrictive coating it
Between there is sheath, non-metallic and transition zone, sheath extrusion molding is coated on except protective layer, non-metallic be located at sheath it
It is outer and close sheath, transition zone positioned at non-metallic and restrictive coating between, non-metallic by coating, in coating
And it is arranged in parallel and be not in contact with each other and more increase parts that axis is in the same plane are constituted；Or non-metallic is by quilt
Coating, in coating and it is arranged in parallel and be not in contact with each other and multiple reinforcement holes that axis is in the same plane,
And more increase parts are constituted, and have an increase part in each reinforcement hole.
In 6th embodiment of the invention, a kind of non-metallic optical fiber cables, include positioned at optical cable center center reinforcemen, with
One-way or bi-directional spiral is twisted except centrally disposed reinforcer and includes the Loose tube of plurality of ribbons, positioned at adjacent pine set
Outer gasket for packing in the external series gap of pipe, the protective layer that outer gasket for packing and Loose tube are enveloped and the shield except protective layer
Jacket layer has more optical fibers in every fibre ribbon；It is characterized in that between the protective layer and restrictive coating have sheath,
Non-metallic and transition zone, sheath extrusion molding are coated on except protective layer, and non-metallic is located at except sheath and by sheath
Closing, transition zone is between non-metallic and restrictive coating, and non-metallic is by coating, in coating and be parallel to each other and set
It sets and is not in contact with each other and more increase parts that axis is in the same plane are constituted；Or non-metallic by coating, be located at quilt
It is in coating and arranged in parallel and be not in contact with each other and multiple reinforcement holes that axis is in the same plane and more increase parts
It constitutes, there is an increase part in each reinforcement hole.
In 7th embodiment of the invention, a kind of non-metallic optical fiber cables, substantially with embodiment 6, the difference is that restrictive coating
Outer extrusion molding is coated with external protection.
Therefore, the present invention have it is following main the utility model has the advantages that speed of production faster, more easy to produce, product qualified rate is higher,
Cost is lower, equipment investment is less, and the versatility of non-metallic is stronger.
Detailed description of the invention
Fig. 1 is one section of schematic perspective view of the increase part in non-metallic used in the present invention.
Fig. 2 is that the removal of non-metallic used in the present invention increases by one section of schematic perspective view after part.
Fig. 3 is one section of schematic perspective view of non-metallic used in the present invention.
Fig. 4 is one section of schematic perspective view of embodiment 1 of the present invention.
Fig. 5 is the cross-sectional structure schematic diagram of Fig. 4 amplification.
Fig. 6 is one section of schematic perspective view of embodiment 2 of the present invention.
Fig. 7 is the cross-sectional structure schematic diagram of Fig. 6 amplification.
Fig. 8 is one section of schematic perspective view of embodiment 3 of the present invention.
Fig. 9 is the cross-sectional structure schematic diagram of Fig. 8 amplification.
Figure 10 is the cross-sectional structure schematic diagram of embodiment 4 of the present invention.
Figure 11 is the cross-sectional structure schematic diagram of embodiment 5 of the present invention.
Figure 12 is the cross-sectional structure schematic diagram of embodiment 6 of the present invention.
Figure 13 is the cross-sectional structure schematic diagram of embodiment 7 of the present invention.
Specific embodiment
Embodiment 1
See Fig. 1 to Fig. 5, a kind of non-metallic optical fiber cables, include positioned at the center reinforcemen 4 in optical cable center, with unidirectional or
Bidirectional screw is twisted except centrally disposed reinforcer and includes 4 Loose tubes 3 of 12 optical fibers 2, positioned at adjacent pine
Outer gasket for packing 5 in the external series gap of casing, the protective layer 6 that outer gasket for packing and Loose tube are enveloped and it is located at except protective layer
Restrictive coating 7；It is characterized in that have between the protective layer and restrictive coating by the closed non-metallic 1 of protective layer, it is nonmetallic
Band by coating 13, it is in coating and arranged in parallel and be not in contact with each other and axis is in the same plane 8 increasings
Part 11 is added to constitute；Or non-metallic by coating 13, it is in coating and arranged in parallel and be not in contact with each other and axis
The multiple reinforcement holes 12 being in the same plane and more increase parts 11 are constituted, and have an increase in each reinforcement hole
Part.
A kind of non-metallic optical fiber cables described above, it is characterised in that the optical fiber in the Loose tube can also be other more
Root, but at least there is one.
Visible reinforcement hole is 4 in Fig. 2, can be to be other multiple, and when picture omits；Reinforcement in Fig. 3
It is 4, can is other more, when picture omits.
Embodiment 2
See Fig. 6 and Fig. 7, and referring to figs. 1 to Fig. 3, a kind of non-metallic optical fiber cables include to add positioned at the center in optical cable center
Strong part 4,6 Loose tubes 3 for being twisted except centrally disposed reinforcer with one-way or bi-directional spiral and including 4 optical fibers 2,
The protective layer 6 that Loose tube is enveloped and the restrictive coating 7 except protective layer；It is characterized in that the protective layer and sheath
Have between layer by the closed non-metallic 1 of protective layer, non-metallic is by coating 13, in coating and be parallel to each other and set
It sets and is not in contact with each other and 8 increase parts 11 that axis is in the same plane are constituted；Or non-metallic by coating 13, be located at
It is in coating and arranged in parallel and be not in contact with each other and multiple reinforcement holes 12 that axis is in the same plane and more increasings
Add part 11 to constitute, there is an increase part in each reinforcement hole.
A kind of non-metallic optical fiber cables described above, it is characterised in that the optical fiber in the Loose tube can also be other more
Root, but at least there is one.
Embodiment 3
See Fig. 8 and Fig. 9, and referring to figs. 1 to Fig. 3, a kind of non-metallic optical fiber cables include to add positioned at the center in optical cable center
Strong part 4,3 Loose tubes 3 for being twisted except centrally disposed reinforcer with one-way or bi-directional spiral and including 4 fibre ribbons 21,
Outer gasket for packing 5 in the external series gap of adjacent Loose tube, the protective layer 6 that outer gasket for packing and Loose tube are enveloped and position
Restrictive coating 7 except protective layer has 4 optical fibers 2 in every fibre ribbon；It is characterized in that the protective layer and sheath
There is sheath 8 and non-metallic 1 between layer, sheath extrusion molding is coated on except protective layer, non-metallic be located at sheath and
Closed between restrictive coating and by sheath, non-metallic by coating 13, be located at coating in and it is arranged in parallel and mutually not
12 increase parts 11 that contact and axis are in the same plane are constituted；Or non-metallic by coating 13, be located at coating
In and it is arranged in parallel and be not in contact with each other and multiple reinforcement holes 12 that axis is in the same plane and more increase parts 11
It constitutes, there is an increase part in each reinforcement hole.
A kind of non-metallic optical fiber cables described above, it is characterised in that the fibre ribbon in the Loose tube can also be other more
Root, but at least there is one.
A kind of non-metallic optical fiber cables described above, it is characterised in that the optical fiber in the fibre ribbon can also be other more
Root, but at least there is one.
Certainly, in this embodiment, gasket for packing can be free of as embodiment 2 completely.
Embodiment 4
See Figure 10, and referring to figs. 1 to Fig. 5, a kind of non-metallic optical fiber cables include the center reinforcemen positioned at optical cable center
4,4 Loose tubes 3, positions of 12 optical fibers 2 are twisted except centrally disposed reinforcer and included with one-way or bi-directional spiral
Outer gasket for packing 5 in the external series gap of adjacent Loose tube by protective layer 6 that outer gasket for packing and Loose tube envelope and is located at
Restrictive coating 7 except protective layer；It is characterized in that having sheath 8, non-metallic 1 and mistake between the protective layer and restrictive coating
Layer 9 is crossed, sheath extrusion molding is coated on except protective layer, and non-metallic is located at except sheath and closes sheath, transition zone
Between non-metallic and restrictive coating, non-metallic by coating 13, be located at coating in and it is arranged in parallel and mutually not
8 increase parts 11 that contact and axis are in the same plane are constituted；Or non-metallic by coating 13, be located at coating in
And it is arranged in parallel and be not in contact with each other and multiple reinforcement holes 12 that axis is in the same plane and more increase by 11 structures of part
At with an increase part in each reinforcement hole.
A kind of non-metallic optical fiber cables described above, it is characterised in that the optical fiber in the Loose tube can also be other more
Root, but at least there is one.
Embodiment 5
See Figure 11, and referring to figs. 1 to Fig. 3 and Fig. 6 and Fig. 7, a kind of non-metallic optical fiber cables that can be anti-lightning strike, include to be located at
The center reinforcemen 4 in optical cable center is twisted except centrally disposed reinforcer with one-way or bi-directional spiral and includes 4 light guide fibres
6 Loose tubes 3 of dimension 2, the protective layer 6 that Loose tube is enveloped and the restrictive coating 7 except protective layer；It is characterized in that
Between the protective layer and restrictive coating have sheath 8, non-metallic 1 and transition zone 9, sheath extrusion molding be coated on protective layer it
Outside, non-metallic is located at except sheath and closes sheath, and transition zone is nonmetallic between non-metallic and restrictive coating
Band by coating 13, it is in coating and arranged in parallel and be not in contact with each other and axis is in the same plane 8 increasings
Part 11 is added to constitute；Or non-metallic by coating 13, it is in coating and arranged in parallel and be not in contact with each other and axis
The multiple reinforcement holes 12 being in the same plane and more increase parts 11 are constituted, and have an increase in each reinforcement hole
Part.
A kind of non-metallic optical fiber cables that can be anti-lightning strike described above, it is characterised in that the optical fiber in the Loose tube is also
It can be other more, but at least there is one.
A kind of non-metallic optical fiber cables that can be anti-lightning strike described above, it is characterised in that the increase part can also be other more
Root.
Embodiment 6
It include positioned at optical cable center see Figure 12, and referring to figs. 1 to Fig. 3 and Fig. 8 and Fig. 9, a kind of non-metallic optical fiber cables
Center reinforcemen 4,3 pines for being twisted except centrally disposed reinforcer with one-way or bi-directional spiral and including 4 fibre ribbons 21
Casing 3, the outer gasket for packing 5 in the external series gap of adjacent Loose tube, the protective layer for enveloping outer gasket for packing and Loose tube
6 and the restrictive coating 7 except protective layer, there are 4 optical fibers 2 in every fibre ribbon；It is characterized in that the protective layer
There is sheath 8, non-metallic 1 and transition zone 9 between restrictive coating, sheath extrusion molding is coated on except protective layer, nonmetallic
Band is located at except sheath and closes sheath, and transition zone is between non-metallic and restrictive coating, and non-metallic is by being coated
It is layer 13, in coating and arranged in parallel and be not in contact with each other and 12 increase by 11 structures of part that axis is in the same plane
At；Or non-metallic by coating 13, in coating and it is arranged in parallel and be not in contact with each other and axis be located at it is same
Multiple reinforcement holes 12 and more increase parts 11 in plane are constituted, and have an increase part in each reinforcement hole.
A kind of non-metallic optical fiber cables described above, it is characterised in that the fibre ribbon in the Loose tube can also be other more
Root, but at least there is one.
A kind of non-metallic optical fiber cables described above, it is characterised in that the optical fiber in the fibre ribbon can also be other more
Root, but at least there is one.
Embodiment 7
See Figure 13, and referring to figs. 1 to Fig. 3 and Fig. 8 and Fig. 9 and Figure 12, a kind of non-metallic optical fiber cables, substantially same embodiment
6, the difference is that: the outer extrusion molding of restrictive coating is coated with external protection 91.
The material of the external protection is preferably nylon rodent-proof material, model such as NL12, NL6, i.e. nylon 12, nylon 6
Deng.
Following non-metallic optical fiber cables, are equally applicable to non-metallic optical fiber cables that can be anti-lightning strike.
A kind of non-metallic optical fiber cables described in any of the above-described embodiment, it is characterised in that the increase part can also be other
More.
A kind of non-metallic optical fiber cables described in any of the above-described embodiment, it is characterised in that in the Loose tube, at least one
There is root to be replaced by solid packing elements, and packing elements are identical as the diameter of Loose tube.
A kind of non-metallic optical fiber cables described in any of the above-described embodiment, it is characterised in that the diameter of the Loose tube is one
Sample.
A kind of non-metallic optical fiber cables described in any of the above-described embodiment, it is characterised in that the material of the center reinforcemen
For fiberglass-reinforced plastic lever.
A kind of non-metallic optical fiber cables described in any of the above-described embodiment, it is characterised in that the G.652 optical fiber is
Optical fiber or G.653 optical fiber or G.654 optical fiber or G.655 optical fiber or G.657 optical fiber or OM1 optical fiber or OM2 optical fiber or OM3 optical fiber or
Energy transmission optical fibre.
A kind of non-metallic optical fiber cables described in any of the above-described embodiment, it is characterised in that the material of the Loose tube is poly-
Mutual-phenenyl two acid bromide two alcohol ester or modified polypropene.
A kind of non-metallic optical fiber cables described in any of the above-described embodiment, it is characterised in that the material of the outer gasket for packing is
Polyethylene or polypropylene.
A kind of non-metallic optical fiber cables described in any of the above-described embodiment, it is characterised in that the material of the protective layer is poly-
Ester band or waterstop or non-woven fabrics.
A kind of non-metallic optical fiber cables described in any of the above-described embodiment, it is characterised in that the material of the restrictive coating is low
Density polyethylene or medium density polyethylene or high density polyethylene (HDPE) or flame-proof polyethylene or low smoke and zero halogen polyethylene.
A kind of non-metallic optical fiber cables described in any of the above-described embodiment, it is characterised in that the material of the sheath is low
Density polyethylene or medium density polyethylene or high density polyethylene (HDPE) or flame-proof polyethylene or low smoke and zero halogen polyethylene.
In a kind of non-metallic optical fiber cables described in above-mentioned embodiment 4 to embodiment 6, it is characterised in that the transition zone
Material be polyester belt or waterstop, transition zone with a thickness of 0.1~0.5mm；Transition zone have it is excellent block water, waterproof is made
With, can be effectively protected optical fiber from or slow down hydrionic erosion in water, making optical fiber, the service life is longer.
A kind of non-metallic optical fiber cables described in any of the above-described embodiment, it is characterised in that the Loose tube preferably with
Center reinforcemen is tangent；When having outer gasket for packing, outer gasket for packing is preferably tangent with adjacent Loose tube and protective layer；
Yarn etc. can be pricked by yarn substance such as polyester outside Loose tube to wrap up more Loose tubes, keep its structure more stable；When having
When outer gasket for packing, yarn etc. can be pricked by yarn substance such as polyester and wrap up more Loose tubes, outer gasket for packing together, make its knot
Structure is more stable.
A kind of non-metallic optical fiber cables described in any of the above-described embodiment, it is characterised in that preferably grow in the reinforcement hole
Cube shape as long as reinforcement can be accommodated, and not have excessive gap it is of course also possible to be other shapes between reinforcement.
A kind of non-metallic optical fiber cables described in any of the above-described embodiment, it is characterised in that in the gap of the Loose tube also
Can fill such as greasy for preventing water, water-proofing powder, water blocking yarn class the substance that blocks water.
A kind of non-metallic optical fiber cables described in any of the above-described embodiment, it is characterised in that the gap within the protective layer
In can also fill such as greasy for preventing water, water-proofing powder, water blocking yarn class the substance that blocks water；Tearing for stripping fiber optic cables can also be placed
Split rope.
A kind of non-metallic optical fiber cables described in any of the above-described embodiment, it is characterised in that the material of the coating is low
Density polyethylene or medium density polyethylene or high density polyethylene (HDPE) or flame-proof polyethylene or low smoke and zero halogen polyethylene；The material of coating
Expect that with the material of sheath be identical；When not having external protection, the material of coating and the material of restrictive coating are identical.
A kind of non-metallic optical fiber cables described in any of the above-described embodiment, it is characterised in that the increase part is by weight
Meter includes following raw material: 20~30 parts of polyvinyl resin, 8~15 parts of acrylic resin, model JF-31 or JF-33 or JF-
30~50 parts of 35 or JF-C ultra high molecular weight polyethylene fiber, length be 0.01mm~1.2mm 20~40 parts of glass fiber yarn,
5~10 parts of EVA hot-melt adhesive；It is known as regular convention formula in the following description.
The increase part by weight, the performance that can be optimal when comprising following raw material by test: polyethylene tree
25 parts of rouge, 11 parts of acrylic resin, model JF-31 or JF-33 or JF-35 or JF-C ultra high molecular weight polyethylene fiber 40
Part, length are 30 parts of the glass fiber yarn of 0.01mm~1.2mm, 8 parts of EVA hot-melt adhesive；It is known as optimal match in the following description
Side.
Model JF-31 or JF-33 described above or JF-35 or JF-C ultra high molecular weight polyethylene fiber are commercially available productions
Product, from Jiangsu clanging or clanking sound Nima new material Co., Ltd etc. it is other from be commercially available.
Non-metallic in the present invention is obtained by the following method: first weighing each raw material for increasing part by weight；
Then will each raw material that increase part be added kneading machine in be heated to 180~250 DEG C be mixed and stirred for uniformly obtaining it is sticky
Mixture；Sticky mixture is added in extruding machine to the shape for being extruded into the increase part of needs again and fixed but sizing is increased
Part；Then the enhancing hole for more being increased the mold that part passes through on extrusion head, by the low density polyethylene (LDPE) of melting or middle density
Polyethylene or high density polyethylene (HDPE) or flame-proof polyethylene or low smoke and zero halogen polyethylene are coated on more enhancings by way of extrusion molding
Coating is formed on part, that is, forms non-metallic.
Certainly, the non-metallic in the present invention can also be obtained by the following method: first weigh increase by weight
Each raw material of part；Then 180~250 DEG C will be heated in each raw material for increasing part addition kneading machine be mixed and stirred for uniformly
Obtain sticky mixture；Sticky mixture is added in extruding machine again and is extruded into the shape of the increase part of needs and determines but to be formed
It obtains increasing part；By the low density polyethylene (LDPE) of melting or medium density polyethylene or high density polyethylene (HDPE) or flame-proof polyethylene or low cigarette
Halogen-free polyvinyl extrusion molding and is cooled into coating and reinforcement hole by way of extrusion molding, has on the mold on extrusion head
Multiple parallel enhancing holes, enhancing hole is not in contact with each other and axis is in the same plane；Part merging will be increased when producing optical cable
In reinforcement hole.
Non-metallic in the present invention obtains following data by test:
Using the optical cable of the embodiment 1-7 of above-mentioned non-metallic production, ideal tension force value is all reached, has not needed
The twisted equipment of aramid yarn or glass fiber yarn, optical cable it is flexible and produce optical cable product qualified rate reach 99.85%, optical cable
By alternating bending, torsion test, it is attained by country and the professional standard of optical cable industry, the cost of optical cable is opposite to use aramid fiber
The optical cable reduction by 25% or so of yarn or glass fiber yarn as outer reinforcement, and speed of production accelerates 50% or more, therefore, this
Invention has apparent beneficial effect.
A kind of production method of non-metallic optical fiber cables, it is characterised in that comprise the steps of:
Step 1: the step of forming cable core: cable core includes that cable core body either includes cable core body and is coated on by extrusion molding
The external sheath of cable core；Center reinforcemen, more Loose tubes for including more optical fibers, more outer gasket for packings are taken, it will be more
Root Loose tube is placed in parallel except center reinforcemen or is twisted in a manner of one-way spiral or bidirectional screw around center reinforcemen,
More outer gasket for packings are placed in the external series gap of adjacent Loose tube, are protected in more Loose tubes and more outer gasket for packing outer claddings
Sheath forms cable core body；Or more Loose tubes for taking center reinforcemen, including more optical fibers, more Loose tubes are parallel
It is centrally disposed except reinforcer or is twisted in a manner of one-way spiral or bidirectional screw around center reinforcemen, in more Loose tubes
Outer cladding protective layer forms cable core body；Or take center reinforcemen, more Loose tubes for including plurality of ribbons, more fillings outside
More Loose tubes are placed in parallel except center reinforcemen or are reinforced in a manner of one-way spiral or bidirectional screw around center by rope
Part is twisted, more outer gasket for packings is placed in the external series gap of adjacent Loose tube, in more Loose tubes and more outer gasket for packings
Outer cladding protective layer forms cable core body, includes more optical fibers in every fibre ribbon；Or it takes center reinforcemen, include more
More Loose tubes of fibre ribbon, more Loose tubes are placed in parallel except center reinforcemen or with one-way spiral or bidirectional screw
Mode it is twisted around center reinforcemen, cable core bodies are formed in more Loose tube outer cladding protective layers, comprising more in every fibre ribbon
Root optical fiber；
Step 2: the step of cladding non-metallic forms semi-finished product: negated metal tape is by way of longitudinally coating the
It is coated outside cable core described in one step and makes to be closed to form semi-finished product outside cable core, the non-metallic is by coating, position
It is in coating and arranged in parallel and be not in contact with each other and more increase parts that axis is in the same plane are constituted；Or it takes
Negated metal tape is coated outside the cable core by way of longitudinally coating described in the first step and makes to be closed shape outside cable core
At semi-finished product, the non-metallic by coating, it is in coating and arranged in parallel and be not in contact with each other and axis is located at
Multiple reinforcement holes in same plane, and take in more increase part merging reinforcement holes, only merging one in each reinforcement hole
Root increases part, when that will increase part merging reinforcement hole, is maintained at the temperature of coating in the range of 50~80 DEG C；
Step 3: the step of forming finished cable: the semi-finished product in second step being passed through the mold core hole of extruding machine and half
Upper jacket layer, which is extruded, outside finished product forms finished cable；Or by the semi-finished product in second step pass through extruding machine mold core hole and
Transition zone is extruded outside semi-finished product, then extrudes restrictive coating on transition zone and forms finished cable；Or by half in second step
Finished product passes through the mold core hole of extruding machine and extrudes upper transition zone outside semi-finished product, then external protection is extruded on transition zone, then
Restrictive coating is extruded on external protection forms finished cable；
Wherein, the material of the external protection is nylon rodent-proof material, and the material of center reinforcemen is glass fiber reinforcement
Plastic bar, optical fiber are G.652 optical fiber or G.653 optical fiber or G.654 optical fiber or G.655 optical fiber or G.657 optical fiber or OM1 light
Fine or OM2 optical fiber or OM3 optical fiber or energy transmission optical fibre, the material of Loose tube are polybutylene terephthalate (PBT) or are modified poly-
Propylene, the material of outer gasket for packing are polyethylene or polypropylene, and the material of protective layer is polyester belt or waterstop or non-woven fabrics, sheath
The material of layer is low density polyethylene (LDPE) or medium density polyethylene or high density polyethylene (HDPE) or flame-proof polyethylene or the poly- second of low smoke and zero halogen
Alkene, the material of sheath be low density polyethylene (LDPE) or medium density polyethylene or high density polyethylene (HDPE) or flame-proof polyethylene or low cigarette without
Halogen polyethylene, the material of transition zone are polyester belt or waterstop, transition zone with a thickness of 0.1~0.5mm；Increase part by weight
Part meter, include following raw material: 20~30 parts of polyvinyl resin, 8~15 parts of acrylic resin, model JF-31 or JF-33 or
30~50 parts of JF-35 or JF-C ultra high molecular weight polyethylene fiber, the glass fiber yarn 20~40 that length is 0.01mm~1.2mm
Part, 5~10 parts of EVA hot-melt adhesive.
In the present invention, protective layer and sheath, which have primarily served, to block water and the effect of protecting against shock；Sheath separately also acts
The effect of adjusting, for the non-metallic produced, due to its length, width, height be it is determining, for tool
There is the optical cable of different protective layer diameters, need different non-metallics, and be provided with sheath, since its thickness can spirit
It is living to adjust, it is therefore possible to use wider non-metallic, does not need in addition to purchase and customize.
Therefore, the present invention have it is following main the utility model has the advantages that speed of production faster, more easy to produce, product qualified rate is higher,
Cost is lower, equipment investment is less, and the versatility of non-metallic is stronger.
The present invention is not limited to above-mentioned preferred forms, it should be understood that design of the invention can be by other various shapes
Formula is implemented to use, they also fall in protection scope of the present invention.
Claims (8)
1. the non-metallic optical fiber cables that one kind can be anti-lightning strike include positioned at the center reinforcemen in optical cable center, with one-way or bi-directional spiral shell
Revolve be twisted except centrally disposed reinforcer and include the Loose tube of more optical fibers, envelope Loose tube protective layer,
And the restrictive coating except protective layer；It is characterized in that having sheath, non-metallic between the protective layer and restrictive coating
And transition zone, sheath extrusion molding are coated on except protective layer, non-metallic is located at except sheath and closes sheath, transition
Layer positioned at non-metallic and restrictive coating between, non-metallic by coating, be located in coating and it is arranged in parallel and it is mutual not
The more increase parts that contact and axis are in the same plane are constituted；Or non-metallic by coating, be located at coating in and
It is arranged in parallel and be not in contact with each other and multiple reinforcement holes that axis is in the same plane and more increase parts are constituted, often
There is an increase part in a reinforcement hole；The increase part includes following raw material: polyvinyl resin 20~30 by weight
Part, 8~15 parts of acrylic resin, model JF-31 or JF-33 or JF-35 or JF-C ultra high molecular weight polyethylene fiber 30~
50 parts, length be 20~40 parts of the glass fiber yarn of 0.01mm~1.2mm, 5~10 parts of EVA hot-melt adhesive.
2. the non-metallic optical fiber cables that one kind according to claim 1 can be anti-lightning strike, it is characterised in that the center reinforcemen
Material is fiberglass-reinforced plastic lever.
3. the non-metallic optical fiber cables that one kind according to claim 2 can be anti-lightning strike, it is characterised in that the optical fiber is
G.652 optical fiber or G.653 optical fiber or G.654 optical fiber or G.655 optical fiber or G.657 optical fiber or OM1 optical fiber or OM2 optical fiber or OM3
Optical fiber or energy transmission optical fibre.
4. the non-metallic optical fiber cables that one kind according to claim 3 can be anti-lightning strike, it is characterised in that the material of the Loose tube
For polybutylene terephthalate (PBT) or modified polypropene.
5. the non-metallic optical fiber cables that one kind according to claim 4 can be anti-lightning strike, it is characterised in that the material of the protective layer
For polyester belt or waterstop or non-woven fabrics.
6. the non-metallic optical fiber cables that one kind according to claim 5 can be anti-lightning strike, it is characterised in that the material of the restrictive coating
It is low density polyethylene (LDPE) or medium density polyethylene or high density polyethylene (HDPE).
7. according to claim 1 to one kind described in claim 6 any one can be anti-lightning strike non-metallic optical fiber cables, feature exists
In the material of the sheath be low density polyethylene (LDPE) or medium density polyethylene or high density polyethylene (HDPE).
8. the material of the non-metallic optical fiber cables that one kind according to claim 7 can be anti-lightning strike, the coating is poly- for low-density
Ethylene or medium density polyethylene or high density polyethylene (HDPE)；The material of coating and the material of sheath are identical.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610069195.4A CN105785528B (en) | 2014-06-26 | 2014-06-26 | A kind of non-metallic optical fiber cables that can be anti-lightning strike |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610069195.4A CN105785528B (en) | 2014-06-26 | 2014-06-26 | A kind of non-metallic optical fiber cables that can be anti-lightning strike |
| CN201410293929.8A CN104020544B (en) | 2014-06-26 | 2014-06-26 | Non-metallic cable and manufacturing method thereof |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410293929.8A Division CN104020544B (en) | 2014-06-26 | 2014-06-26 | Non-metallic cable and manufacturing method thereof |
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| CN105785528B true CN105785528B (en) | 2019-01-01 |
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| US7242831B2 (en) * | 2004-02-27 | 2007-07-10 | Verizon Business Global Llc | Low strain optical fiber cable |
| KR20100000036A (en) * | 2008-06-24 | 2010-01-06 | 엘에스전선 주식회사 | Optical fiber cable |
| CN101706606A (en) * | 2009-12-11 | 2010-05-12 | 沈群华 | Center beam tube type optical cable with reinforcement strips |
| CN101706605A (en) * | 2009-11-11 | 2010-05-12 | 郑振卫 | Central tube bundle optical cable with improved structure |
| CN103744152A (en) * | 2014-01-02 | 2014-04-23 | 常熟市谷雷特机械产品设计有限公司 | Self-supporting optical cable and manufacturing method thereof |
| CN203673118U (en) * | 2014-01-02 | 2014-06-25 | 国家电网公司 | Self-supporting optical cable |
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2014
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7242831B2 (en) * | 2004-02-27 | 2007-07-10 | Verizon Business Global Llc | Low strain optical fiber cable |
| KR20100000036A (en) * | 2008-06-24 | 2010-01-06 | 엘에스전선 주식회사 | Optical fiber cable |
| CN101706605A (en) * | 2009-11-11 | 2010-05-12 | 郑振卫 | Central tube bundle optical cable with improved structure |
| CN101706606A (en) * | 2009-12-11 | 2010-05-12 | 沈群华 | Center beam tube type optical cable with reinforcement strips |
| CN103744152A (en) * | 2014-01-02 | 2014-04-23 | 常熟市谷雷特机械产品设计有限公司 | Self-supporting optical cable and manufacturing method thereof |
| CN203673118U (en) * | 2014-01-02 | 2014-06-25 | 国家电网公司 | Self-supporting optical cable |
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| CN105785528A (en) | 2016-07-20 |
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Effective date of registration: 20181113 Address after: 412000 Hunan, Zhuzhou, Shandong Province Applicant after: HUNAN SHENTONG OPTOELECTRONIC TECHNOLOGY Co.,Ltd. Address before: 214206 room 404, 144 village, South Cang village, Yicheng street, Yixing, Wuxi, Jiangsu Applicant before: Yin Hong |
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