CN109683268A - A kind of rat-and-ant proof type all-dielectric self-supporting optical cable - Google Patents
A kind of rat-and-ant proof type all-dielectric self-supporting optical cable Download PDFInfo
- Publication number
- CN109683268A CN109683268A CN201910070033.6A CN201910070033A CN109683268A CN 109683268 A CN109683268 A CN 109683268A CN 201910070033 A CN201910070033 A CN 201910070033A CN 109683268 A CN109683268 A CN 109683268A
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- Prior art keywords
- optical cable
- rat
- proof type
- supporting optical
- ant proof
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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
-
- 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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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Insulated Conductors (AREA)
Abstract
The present invention relates to a kind of rat-and-ant proof type all-dielectric self-supporting optical cables, intertwist body, glass fibre reinforcing strip and the restrictive coating for successively including center reinforcemen from the inside to the outside, being twisted by Loose tube or Loose tube and gasket for packing.Restrictive coating includes the sheath section for being coated on glass fibre reinforcing strip outer surface, the suspender belt portion outwardly extended by sheath section and the messenger wire portion positioned at suspender belt portion end, the inside in messenger wire portion is equipped with glass fibre reinforcing rod, suspender belt portion, messenger wire portion and glass fibre reinforcing rod are along the axial direction setting of rat-and-ant proof type all-dielectric self-supporting optical cable, sheath section, suspender belt portion and messenger wire portion are PE internal layer and the double-layer structure that nylon outer layer co-extrusion is formed, and are axially provided with optical fiber inside Loose tube.Rat-and-ant proof type all-dielectric self-supporting optical cable of the invention also has high lateral pressure resistant, tensile property outside guaranteeing optical cable with light-weight, small in size and thunder-lightning and forceful electric power characteristic without any metal material, structure setting.
Description
Technical field
The present invention relates to optical cable for communication technical field, in particular to a kind of rat-and-ant proof type all-dielectric self-supporting optical cable.
Background technique
China is a more mountainous region countries, and fiber cable laying is generally used aerial mode, if using other such as direct-burried, pipeline
Mode, feasibility will become very poor, at high cost not say and technical difficulty is big, and be unfavorable for later maintenance.Though aerial mode
It is so overall to be of relatively low cost, but if then must first set up load-bearing component before optical cable construction, such as using typical circular optical cable
Steel wire, steel strand wires etc, when in mountain construction, it will generate high transport and construction cost.Self-support cable can solve
Certainly this problem, this optical cable are not necessarily to set up the load-bearing components such as steel strand wires in the construction process, and it is aerial to be used directly for self-supporting
Operating expenses is greatly saved in this way and reduces difficulty of construction for construction.
In addition, according to construction and use environment different demands, the model being related to also will with the increase of optical cable demand
It is more and more abundant.Southern region of China, if the Sichuan Basin moistens rainy throughout the year, thunderstorm weather is more frequent, such as uses metal frame
Ceases to be busy is easy to be struck by lightning, and in turn results in the damage of entire lightguide cable link, comes to personnel safety and communication band immeasurable
Loss.In addition, there is threat in this area in more plagues of rats and termite, to the optical cable of laying more, ordinary optical cable is caused because animal bites
The phenomenon that line interruption, also often occurs.
Summary of the invention
The purpose of the present invention is in order to solve the above problem, the present invention provides a kind of rat-and-ant proof type all-dielectric self-supporting optical cable.
A kind of rat-and-ant proof type all-dielectric self-supporting optical cable, which includes successively from the inside to the outside center reinforcemen, by Loose tube
Or the intertwist body that Loose tube and gasket for packing are twisted along the axial direction of rat-and-ant proof type all-dielectric self-supporting optical cable, longitudinal wrap is in intertwist body
The glass fibre reinforcing strip and restrictive coating of outer surface.
Restrictive coating includes the sheath section for being coated on glass fibre reinforcing strip outer surface, the outwardly extension by sheath section
Suspender belt portion and positioned at the messenger wire portion of suspender belt portion end, the inside in messenger wire portion is equipped with glass fibre reinforcing rod, suspender belt portion, messenger wire portion
With glass fibre reinforcing rod along the axial direction setting of rat-and-ant proof type all-dielectric self-supporting optical cable, sheath section, suspender belt portion and messenger wire portion are equal
For the double-layer structure that PE internal layer and nylon outer layer co-extrusion are formed, Loose tube inside is axial to be provided with optical fiber.
Wherein, greasy for preventing water is filled with inside Loose tube, optical fiber is more, and dispersion is embedded in greasy for preventing water.
Wherein, the intertwist body in glass fibre reinforcing strip and the gap outside center reinforcemen are equipped with water blocking yarn.
Wherein, tear rope is equipped between the glass fibre reinforcing strip and PE internal layer of sheath section, in glass fibre reinforcing strip
Intertwist body is externally provided with tear rope.
Wherein, sheath section, suspender belt portion and messenger wire portion are double-layer coextrusion integrated molding.
Wherein, the wall thickness of PE internal layer is 1.0-2.0mm, and the wall thickness of nylon outer layer is 0.5-0.8mm, glass fibre reinforcing strip
Longitudinal wrap with a thickness of 0.4-0.55mm.
Wherein, center reinforcemen is fiberglass pole.
Rat-and-ant proof type all-dielectric self-supporting optical cable of the invention can disposably hang completion without in addition hanging messenger wire, and
Whole optical cable is all dielectric material, without any metal material, have the characteristics such as light-weight, small in size and thunder-lightning and forceful electric power it
Outside, the lateral pressure resistant also with height, tensile property.In addition, the integrated molding duplex sheath of optical cable of the invention can effectively be kept away
Exempt from small rodent and gnawing for termite is bitten, extends the service life of optical cable.
Detailed description of the invention
By reading the following detailed description of the preferred embodiment, various other advantages and benefits are common for this field
Technical staff will become clear.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as to the present invention
Limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings:
A kind of sectional view of Fig. 1 rat-and-ant proof type all-dielectric self-supporting optical cable of embodiment according to the present invention.
Specific embodiment
The illustrative embodiments of the disclosure will be more fully described according to embodiment below.Although being shown in specification
The illustrative embodiments of the disclosure, it being understood, however, that may be realized in various forms the disclosure without that should be illustrated here
Embodiment limited.It is to be able to thoroughly understand the disclosure on the contrary, providing these embodiments, and can incite somebody to action
The scope of the present disclosure is fully disclosed to those skilled in the art.
As shown in Figure 1, the present invention provides a kind of rat-and-ant proof type all-dielectric self-supporting optical cable, as shown in Figure 1, from the inside to the outside successively
Including center reinforcemen 3, (reinforced when Loose tube radical is not enough to be coated on center completely by Loose tube or Loose tube and gasket for packing
When part periphery, residual gap is filled by gasket for packing, keeps intertwist body close to the cladding of center reinforcemen) it is situated between entirely along rat-and-ant proof type
The intertwist body 7 that the axial direction of matter self-supporting optical cable is twisted, longitudinal wrap is in the glass fibre reinforcing strip 5 and shield of the outer surface of intertwist body 7
Jacket layer.
Restrictive coating include the sheath section 13 for being coated on glass fibre reinforcing strip outer surface, by the appearance of sheath section 13 towards shield
It covers the suspender belt portion 11 of outer 13 a direction extension and positioned at the messenger wire portion 12 of 11 end of suspender belt portion, the inside in messenger wire portion 12 is equipped with
Glass fibre reinforcing rod 1, suspender belt portion 11, messenger wire portion 12 and glass fibre reinforcing rod 1 are along rat-and-ant proof type all-dielectric self-supporting optical cable
Axial setting, sheath section 13, suspender belt portion 11 and messenger wire portion 12 are PE internal layer 10 and the double-deck knot that 6 co-extrusion of nylon outer layer is formed
Structure, Loose tube inside is axial to be provided with optical fiber 8.
Loose tube is formed by polybutylene terephthalate (PBT) (PBT plastic), the strand of Loose tube or Loose tube and gasket for packing
Conjunction mode is that SZ is twisted or spiral twists.The inside of Loose tube blocks water fiber paste filled with thixotropy, can effectively prevent longitudinal infiltration.Light
Fibre 8 is more, and dispersion is embedded in greasy for preventing water.
Glass fibre reinforcing strip (FRP5) belongs to glass fibre non-metallic material, center reinforcemen and intertwist body group stranding
Core, outer layer of cable core coat FRP band by longitudinal, and the lateral resistance to compression and longitudinal tensile property of optical cable can be improved.Longitudinal direction coats
Refer to, the width of FRP band 5 is cable core perimeter, in order to guarantee tight coating, 0.3-0.5mm can be added on the basis of cable core perimeter, but wrap
When covering, the two sides of pairing do not allow to be overlapped.
The gap outside intertwist body 7 and center reinforcemen 3 in glass fibre reinforcing strip 5 is equipped with water blocking yarn 9.Water blocking yarn can be straight
The periphery that can also be wound with center reinforcemen 3 and Loose tube, gasket for packing is put, the specification of water blocking yarn 9 is depending on conductor assembly outer diameter, and one
As selection range between dtex700-dtex3000.The water blocking yarn of the selection range has the advantages that light-weight, small in size, energy
The cable core for enough meeting optical cable of the invention blocks water demand, and block water there is no ointment class drip pollution environment the drawbacks of.
Restrictive coating is primary by special double-layer coextrusion using 6 two kinds of plastic materials of PE sheath 10 and nylon outer jacket
Extrusion forming, PE material have machine-shaping good, ageing-resistant, uvioresistant advantage, and PE sheath overcoating nylon layer is more preferably
It is utilized that nylon hardness is high, advantage resistant to chemical etching and wear-resisting, small rodent and gnawing for termite is bitten with splendid protection
Effect, in actual production manufacturing process, 10 wall thickness of PE sheath is then selected in 1.0-2.0mm or so, 6 wall thickness of nylon outer jacket
In 0.5-0.8mm.
In order to guarantee that optical cable baring is convenient, in design, between the glass fibre reinforcing strip 5 and PE internal layer 10 of sheath section 13
Equipped with tear rope 4, the intertwist body 7 in glass fibre reinforcing strip 5 is externally provided with tear rope 4.The material of tear rope 4 is generally selected
Polyester material, if stripping can also select aramid fiber material when more demanding.
Through detecting, the structurally and mechanically performance of optical cable of the invention such as following table table 1 records shown.
Table 1: the structural parameters and performance parameter of rat-and-ant proof type all-dielectric self-supporting optical cable
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of the claim
Subject to enclosing.
Claims (7)
1. a kind of rat-and-ant proof type all-dielectric self-supporting optical cable, which is characterized in that the rat-and-ant proof type all-dielectric self-supporting optical cable by it is interior extremely
It include successively outside center reinforcemen (3), by Loose tube or Loose tube and gasket for packing along the rat-and-ant proof type all-dielectric self-supporting optical cable
The intertwist body (7) that is twisted of axial direction, longitudinal wrap is in the glass fibre reinforcing strip (5) and shield of the outer surface of the intertwist body (7)
Jacket layer；
The restrictive coating is coated on the sheath section (13) of the outer surface of the glass fibre reinforcing strip (5), by the sheath
The suspender belt portion (11) outwardly extended in portion (13) and the messenger wire portion (12) for being located at suspender belt portion (11) end, it is described to hang
The inside in line portion (12) is equipped with glass fibre reinforcing rod (1), the suspender belt portion (11), the messenger wire portion (12) and the glass fibers
Reinforcing rod (1) is tieed up along the axial direction setting of the rat-and-ant proof type all-dielectric self-supporting optical cable, the sheath section (13), the suspender belt portion
(11) and the messenger wire portion (12) is PE internal layer (10) and the double-layer structure that nylon outer layer (6) co-extrusion is formed, the Loose tube
It is internal to be axially provided with optical fiber (8).
2. rat-and-ant proof type all-dielectric self-supporting optical cable as described in claim 1, which is characterized in that
Greasy for preventing water is filled with inside the Loose tube, the optical fiber (8) is more, and dispersion is embedded in greasy for preventing water.
3. rat-and-ant proof type all-dielectric self-supporting optical cable as described in claim 1, which is characterized in that
The gap of the intertwist body (7) and the center reinforcemen (3) outside in the glass fibre reinforcing strip (5), which is equipped with, to block water
Yarn (9).
4. rat-and-ant proof type all-dielectric self-supporting optical cable as described in claim 1, which is characterized in that
Tear rope (4) are equipped between the glass fibre reinforcing strip (5) and the PE internal layer (10) of the sheath section (13), the glass
The intertwist body (7) in glass fiber reinforcing strip (5) is externally provided with tear rope (4).
5. rat-and-ant proof type all-dielectric self-supporting optical cable as described in claim 1, which is characterized in that
The sheath section (13), the suspender belt portion (11) and the messenger wire portion (12) are double-layer coextrusion integrated molding.
6. rat-and-ant proof type all-dielectric self-supporting optical cable as described in claim 1, which is characterized in that
The wall thickness of the PE internal layer (10) is 1.0-2.0mm, and the wall thickness of the nylon outer layer (6) is 0.5-0.8mm, the glass
The longitudinal wrap of fiber reinforcing strip (5) is with a thickness of 0.4-0.55mm.
7. rat-and-ant proof type all-dielectric self-supporting optical cable as described in claim 1, which is characterized in that
The center reinforcemen (3) is fiberglass pole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910070033.6A CN109683268A (en) | 2019-01-24 | 2019-01-24 | A kind of rat-and-ant proof type all-dielectric self-supporting optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910070033.6A CN109683268A (en) | 2019-01-24 | 2019-01-24 | A kind of rat-and-ant proof type all-dielectric self-supporting optical cable |
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| Publication Number | Publication Date |
|---|---|
| CN109683268A true CN109683268A (en) | 2019-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910070033.6A Pending CN109683268A (en) | 2019-01-24 | 2019-01-24 | A kind of rat-and-ant proof type all-dielectric self-supporting optical cable |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112327431A (en) * | 2020-10-19 | 2021-02-05 | 江苏华脉光电科技有限公司 | Biological-biting-prevention self-supporting optical cable |
| CN113866926A (en) * | 2021-11-22 | 2021-12-31 | 江苏亨通光电股份有限公司 | All-dielectric pipeline direct-buried optical cable |
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| CN108627931A (en) * | 2018-06-27 | 2018-10-09 | 南京维来机械制造有限公司 | A kind of self-support cable |
| CN108681012A (en) * | 2018-07-10 | 2018-10-19 | 浙江龙鹰光电科技有限公司 | A kind of resistant to bending self-supporting optical cable |
| CN209624848U (en) * | 2019-01-24 | 2019-11-12 | 通鼎互联信息股份有限公司 | A rodent-proof all-dielectric self-supporting optical cable |
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2019
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Patent Citations (8)
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| CN201194038Y (en) * | 2008-04-24 | 2009-02-11 | 九龙科技集团有限公司 | Optical cable for electric power circuit |
| CN105700095A (en) * | 2014-01-26 | 2016-06-22 | 王和根 | Self-supporting communication optical cable |
| CN204439899U (en) * | 2015-02-02 | 2015-07-01 | 西安西古光通信有限公司 | The little core number layer-stranding cable of a kind of FTTH |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112327431A (en) * | 2020-10-19 | 2021-02-05 | 江苏华脉光电科技有限公司 | Biological-biting-prevention self-supporting optical cable |
| CN112327431B (en) * | 2020-10-19 | 2022-05-17 | 江苏华脉光电科技有限公司 | Prevent that biology is nibbled and is bitten self-supporting optical cable |
| CN113866926A (en) * | 2021-11-22 | 2021-12-31 | 江苏亨通光电股份有限公司 | All-dielectric pipeline direct-buried optical cable |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190426 |
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| RJ01 | Rejection of invention patent application after publication |