CN203405603U - Central tubular type optical cable convenient for adding signal line - Google Patents

Central tubular type optical cable convenient for adding signal line Download PDF

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Publication number
CN203405603U
CN203405603U CN201320481276.7U CN201320481276U CN203405603U CN 203405603 U CN203405603 U CN 203405603U CN 201320481276 U CN201320481276 U CN 201320481276U CN 203405603 U CN203405603 U CN 203405603U
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CN
China
Prior art keywords
steel wire
layer
signal line
optical cable
optical fiber
Prior art date
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Active
Application number
CN201320481276.7U
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Chinese (zh)
Inventor
夏兴
程德利
宫本财
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin Li Fu photoelectric Polytron Technologies Inc
Original Assignee
TIANJIN LIFU OPTICAL CABLE DEVELOPMENT Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TIANJIN LIFU OPTICAL CABLE DEVELOPMENT Co Ltd filed Critical TIANJIN LIFU OPTICAL CABLE DEVELOPMENT Co Ltd
Priority to CN201320481276.7U priority Critical patent/CN203405603U/en
Application granted granted Critical
Publication of CN203405603U publication Critical patent/CN203405603U/en
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Abstract

The utility model relates to a central tubular type optical cable convenient for adding a signal line. The central tubular type optical cable comprises an optical fiber bundle pipe including a loose pipe and optical fibers and optical fiber filling paste filled in the loose pipe, a steel wire reinforcement layer encircling the optical fiber bundle pipe with waterproof ointment filled between the two, an armored layer covering the steel wire reinforcement layer and an extruded plastic sheath layer covering the armored layer. The cable is characterized in that the steel wire reinforcement layer is formed by winding of a steel wire with an insulating layer, or formed by winding of a steel wire with an insulating layer and a copper wire with an insulating layer, the insulating layer is a plastic layer, the optical fibers are single-mode fibers or multi-mode fibers, the armored layer is a metal composite belt, and the metal composite belt is a plastic-steel composite belt or a plastic-aluminum composite belt. The cable is characterized in that the structure is stable, and a signal line can be additionally arranged conveniently.

Description

Central tubular can band signal line optical cable
Technical field
The utility model relates to the optical cable that is mainly used in outdoor communication, relates in particular to the optical cable that a kind of constitutionally stable central tubular can band signal line.
Background technology
Central tube type optical cable is widely used in fiber optic communication field owing to having good mechanical properties, temperature characterisitic, hydrolytic resistance and tensile strength.Existing central tubular communications optical cable be the optical fiber bundle tubes that formed by loose sleeve pipe and in-built optical fiber thereof and optical fiber filling paste, around described optical fiber bundle tubes strand around and fill the steel wire reinforcing layer of greasy for preventing water therebetween, the vertical plastic protective jacket layer that extrudes that wraps in the armor outside steel wire reinforcing layer and be coated on armor outside forms.
The major defect that central tube type optical cable structurally exists is at present, because steel wire directly twists around optical fiber bundle tubes, although make the strength-enhanced of optical cable, but because Steel Wire Surface is smooth, easily cause the unstable of cable configuration, as: at the connector box place of optical cable, be prone to steel wire and stretch into the situations such as connector box, directly affect the normal transmission of optical cable, especially, when using needs according to user, while needing to increase signal wire, directly add copper wire signal wire can cause short circuit, therefore in existing optical cable, cannot set up by directly adding the mode of signal wire to realize signal wire, its application is restricted.
Utility model content
Fundamental purpose of the present utility model is for the problems referred to above, and the optical cable that a kind of constitutionally stable central tubular can band signal line is provided.
The utility model solves the technical scheme that its technical matters adopts:
Central tubular can band signal line an optical cable, comprise the optical fiber bundle tubes that formed by loose sleeve pipe and in-built optical fiber thereof and optical fiber filling paste, around described optical fiber bundle tubes outside strand around and fill therebetween greasy for preventing water steel wire reinforcing layer, be coated on the armor of steel wire reinforcing layer outside and be coated on armor outside extrude plastic protective jacket layer; It is characterized in that described steel wire reinforcing layer is to be twisted around forming by tape insulation layer steel wire, or jointly twisted around forming by tape insulation layer steel wire and tape insulation layer copper wire.
Insulation course in described tape insulation layer steel wire and tape insulation layer copper wire is plastic layer.
Described optical fiber is single-mode fiber or multimode optical fiber.
Described armor is the vertical metal compound belt that wraps in described steel wire reinforcing layer outside.
Described metal compound belt is composite steel-plastic belt or aluminium-plastic tape.
Described armor is the vertical metal compound belt that wraps in described steel wire reinforcing layer outside.
The beneficial effects of the utility model are: the utility model improves the steel wire in steel wire reinforcing layer of the prior art is replaced with to tape insulation layer steel wire on the basis of existing product, or replace with tape insulation layer steel wire and tape insulation layer copper wire.Because insulation course adopts plastic material, and friction force between plastics and plastics is more much bigger than the friction force between steel wire, thereby cable configuration is more stable, there will not be aforesaid steel wire to stretch into the situations such as connector box, guarantees the normal transmission of optical cable data message.Simultaneously when user has requirement, the steel wire of tape insulation layer can be replaced with the copper wire signal wire of tape insulation layer easily, there will not be because naked layer can cause short circuit and cannot directly set up the drawback of signal wire, thereby meet user's request for utilization, expanded application.In addition, the utility model has also continued the superior functions such as good mechanical properties, temperature characterisitic, hydrolytic resistance and tensile strength of existing central tube type optical cable, makes optical cable safety and reliability when application.
Accompanying drawing explanation
Fig. 1 is cross-sectional structure schematic diagram of the present utility model.
In figure: 1 optical fiber bundle tubes, 11 optical fiber, 12 optical fiber filling pastes, 13 loose sleeve pipes, 2 steel wire reinforcing layers, 21 tape insulation layer steel wire, 22 tape insulation layer copper wire, 3 greasy for preventing water, 4 armors, 5 plastic protective jacket layers.
Below in conjunction with drawings and Examples, the utility model is described in detail.
Embodiment
Fig. 1 illustrates the optical cable that a kind of central tubular can band signal line, comprise the optical fiber bundle tubes 1 that formed by loose sleeve pipe 13 and in-built optical fiber 11 thereof and optical fiber filling paste 12, around described optical fiber bundle tubes 1 outside strand around and fill therebetween greasy for preventing water 3 steel wire reinforcing layer 2, be coated on the armor 4 outside steel wire reinforcing layer 2 and be coated on armor 4 outsides extrude plastic protective jacket layer 5; Of the present utility model be characterised in that described steel wire reinforcing layer 2 be by tape insulation layer steel wire 21 strand around forming, or jointly twisted around forming by tape insulation layer steel wire 21 and tape insulation layer copper wire 22.As shown in Figure 1, in the present embodiment, steel wire reinforcing layer 2 is jointly to be twisted around forming by tape insulation layer steel wire 21 and tape insulation layer copper wire 22.Insulation course in described tape insulation layer steel wire 21 and tape insulation layer copper wire 22 is plastic layer.Described optical fiber is single-mode fiber or multimode optical fiber.Described armor 4 is vertical metal compound belts that wrap in described steel wire reinforcing layer outside, and described metal compound belt adopts composite steel-plastic belt or aluminium-plastic tape.
The central tubular that the utility model provides can band signal line optical cable, to be the steel wire that adopts of steel wire reinforcing layer 2 replaced the structure of the single steel wire in existing structure by tape insulation layer steel wire 21 to its principal feature.Because tape insulation layer steel wire 21 its top layers are plastics, and friction force between plastics and plastics is more much bigger than the friction force between steel wire, thereby cable configuration is more stable, there will not be aforesaid steel wire to stretch into the situations such as connector box, guarantee the normal transmission of optical cable data message.And when user has requirement, tape insulation layer steel wire can be replaced with the signal wire that adopts tape insulation layer copper wire easily, there will not be because naked layer can cause short circuit and cannot directly increase the drawback of signal wire, thereby meet user's requirement.In the present embodiment, according to user, use and need to set up tape insulation layer copper wire signal wire, be about to tape insulation layer steel wire 21 parts and be replaced with tape insulation layer copper wire 22, thereby steel wire reinforcing layer is arranged to jointly be twisted around the enhancement Layer forming by tape insulation layer steel wire 21 and tape insulation layer copper wire 22.
When actual fabrication, above-mentioned central tubular can band signal line the stranding process of optical cable be: first optical fiber 11 is inserted in the loose sleeve pipe 13 of being made by high-modulus plastic, high-modulus plastic can adopt mutual-phenenyl two acid bromide two alcohol ester (PBT), the interior filling optical fiber filling paste 12 of pine sleeve pipe 13, makes optical fiber bundle tubes 1.Then tape insulation layer steel wire 21 and the common wound fiber beam tube of tape insulation layer copper wire 22 1 outside are twisted around the enhancement Layer that forms rounding, in this stranded enhancement Layer, fill commercially available intumescent greasy for preventing water, to guarantee the block-water performance of optical cable; Afterwards, at the coated armor 4 in the outside of steel wire reinforcing layer 2, in the present embodiment, armor 4 has adopted the vertical metal compound belt that wraps in described steel wire reinforcing layer outside, and composite band adopts composite steel-plastic belt or aluminium-plastic tape, can effectively play the effect of waterproof pressure-resistant; Finally, in armor outside, extrude plastic protective jacket layer 5, the material of plastic protective jacket layer can be PE material or halogen-free low-smoke flame retardant material as required, by 5 pairs of optical cables of plastic protective jacket layer, does last protection.
The above, be only preferred embodiment of the present utility model, not shape material of the present utility model and structure done to any pro forma restriction.Any simple modification, equivalent variations and modification that every foundation technical spirit of the present utility model is done above embodiment, all still belong in the scope of technical solutions of the utility model.

Claims (7)

1. the optical cable that central tubular can band signal line, comprise the optical fiber bundle tubes that formed by loose sleeve pipe and in-built optical fiber thereof and optical fiber filling paste, around described optical fiber bundle tubes outside strand around and fill therebetween greasy for preventing water steel wire reinforcing layer, be coated on the armor of steel wire reinforcing layer outside and be coated on armor outside extrude plastic protective jacket layer; It is characterized in that described steel wire reinforcing layer is to be twisted around forming by tape insulation layer steel wire, or jointly twisted around forming by tape insulation layer steel wire and tape insulation layer copper wire.
2. the optical cable that central tubular according to claim 1 can band signal line, is characterized in that the insulation course in described tape insulation layer steel wire and tape insulation layer copper wire is plastic layer.
3. the optical cable that central tubular according to claim 1 and 2 can band signal line, is characterized in that described optical fiber is single-mode fiber or multimode optical fiber.
4. the optical cable that central tubular according to claim 3 can band signal line, is characterized in that described armor is the vertical metal compound belt that wraps in described steel wire reinforcing layer outside.
5. the optical cable that central tubular according to claim 4 can band signal line, is characterized in that described metal compound belt is composite steel-plastic belt or aluminium-plastic tape.
6. the optical cable that central tubular according to claim 1 and 2 can band signal line, is characterized in that described armor is the vertical metal compound belt that wraps in described steel wire reinforcing layer outside.
7. the optical cable that central tubular according to claim 6 can band signal line, is characterized in that described metal compound belt is composite steel-plastic belt or aluminium-plastic tape.
CN201320481276.7U 2013-08-06 2013-08-06 Central tubular type optical cable convenient for adding signal line Active CN203405603U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320481276.7U CN203405603U (en) 2013-08-06 2013-08-06 Central tubular type optical cable convenient for adding signal line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320481276.7U CN203405603U (en) 2013-08-06 2013-08-06 Central tubular type optical cable convenient for adding signal line

Publications (1)

Publication Number Publication Date
CN203405603U true CN203405603U (en) 2014-01-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320481276.7U Active CN203405603U (en) 2013-08-06 2013-08-06 Central tubular type optical cable convenient for adding signal line

Country Status (1)

Country Link
CN (1) CN203405603U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107340580A (en) * 2017-08-30 2017-11-10 福建南新电缆有限公司 A kind of reinforcement type central tube bundle cable

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107340580A (en) * 2017-08-30 2017-11-10 福建南新电缆有限公司 A kind of reinforcement type central tube bundle cable
CN107340580B (en) * 2017-08-30 2019-09-03 福建南新电缆有限公司 A kind of reinforcement type central tube bundle cable
CN110396369A (en) * 2017-08-30 2019-11-01 福建南新电缆有限公司 Reinforcement type central tube bundle cable binder, reinforcement type central tube bundle cable and preparation method

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CP03 Change of name, title or address
CP03 Change of name, title or address

Address after: 300385 Tianjin City Economic Development Zone Xiqing three Saida Avenue No. 8

Patentee after: Tianjin Li Fu photoelectric Polytron Technologies Inc

Address before: 300385 Tianjin city Xiqing District of Xiqing Economic Development Zone Three Saida Avenue No. 8

Patentee before: Tianjin Lifu Optical Cable Development Co., Ltd.