CN209624848U - 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 PDF

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Publication number
CN209624848U
CN209624848U CN201920124985.7U CN201920124985U CN209624848U CN 209624848 U CN209624848 U CN 209624848U CN 201920124985 U CN201920124985 U CN 201920124985U CN 209624848 U CN209624848 U CN 209624848U
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China
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optical cable
rat
proof type
supporting optical
ant proof
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CN201920124985.7U
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沈小平
倪金龙
陈斌
屠耀华
庄浩兵
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Tongding Interconnection Information Co Ltd
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Tongding Interconnection Information Co Ltd
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Abstract

The utility model 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.The rat-and-ant proof type all-dielectric self-supporting optical cable of the utility model 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

A kind of rat-and-ant proof type all-dielectric self-supporting optical cable
Technical field
The utility model 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.
Utility model content
The purpose of this utility model is that in order to solve the above problem, the utility model 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.
The rat-and-ant proof type all-dielectric self-supporting optical cable of the utility model can disposably hang completion without in addition hanging messenger wire, And whole optical cable is all dielectric material, and without any metal material, having, light-weight, small in size and thunder-lightning and forceful electric power etc. are special Property except, also with the lateral pressure resistant of height, tensile property.In addition, the integrated molding duplex sheath of the optical cable of the utility model can Effectively to avoid small rodent and gnawing for termite from biting, extend 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 practical to this Novel limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings:
Fig. 1 is according to the sectional view of rat-and-ant proof type all-dielectric self-supporting optical cable of the utility model embodiment a kind of.
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 utility model 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 It include successively center reinforcemen 3, by Loose tube or Loose tube and gasket for packing (when Loose tube radical is not enough to be coated on center completely When reinforcer periphery, residual gap is filled by gasket for packing, keeps intertwist body close to the cladding of center reinforcemen) along rat-and-ant proof type The intertwist body 7 that the axial direction of all-dielectric self-supporting optical cable is twisted, longitudinal wrap is in the glass fibre reinforcing strip 5 of the outer surface of intertwist body 7 And restrictive coating.
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, choosing Take range between dtex700-dtex3000.The water blocking yarn of the selection range has the advantages that light-weight, small in size, Neng Gouman The cable core of the optical cable of sufficient the utility model 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 the optical cable of the utility model 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 preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not It is confined to this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in Change or replacement, should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should be with Subject to the scope of protection of the claims.

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.
CN201920124985.7U 2019-01-24 2019-01-24 A kind of rat-and-ant proof type all-dielectric self-supporting optical cable Active CN209624848U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109683268A (en) * 2019-01-24 2019-04-26 通鼎互联信息股份有限公司 A kind of rat-and-ant proof type all-dielectric self-supporting optical cable

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109683268A (en) * 2019-01-24 2019-04-26 通鼎互联信息股份有限公司 A kind of rat-and-ant proof type all-dielectric self-supporting optical cable

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