CN201477248U

CN201477248U - Novel anti-mouse integrated communication optical cable

Info

Publication number: CN201477248U
Application number: CN200920185060XU
Authority: CN
Inventors: 沈小平; 张海军; 钱慧芳; 陈炳炎; 刘意
Original assignee: Jiangsu Tongding Optic Electronic Stock Co Ltd
Current assignee: Tongding Interconnection Information Co Ltd
Priority date: 2009-05-13
Filing date: 2009-05-13
Publication date: 2010-05-19
Anticipated expiration: 2019-05-13

Abstract

The utility model relates to a novel anti-mouse integrated communication optical cable, which comprises a cable core, a central sleeve and an outer sheath from an inner layer to an outer layer. The optical cable comprises a plurality of miniature optical fiber units, a fiber ointment filled between the miniature optical fiber units and the central sleeve; each miniature optical fiber unit comprises a miniature sleeve, a fiber arranged in the miniature sleeve, and a fiber ointment filled between the miniature sleeve and the fiber; and a water-resistant band and an FRP reinforcing band are respectively and lengthways packed between the outer side of the central sleeve and the inner side of the outer sheath. By replacing a steel band and a reinforcing piece in the existing integrated optical cable with the FRP reinforcing band which is lengthways packed between the outer sheath and the central sleeve, the produced optical cable not only has better tension-resistant and pressure-resistant performances, but also can better prevent from being bitten by animals, has lighter weight, and is very suitable for being distributed and laid in various fields.

Description

A kind of novel protection against rodents integrated optical communication cable

Technical field

The utility model relates to a kind of communications optical cable, relates in particular to a kind of outdoor communications optical cable that is used for.

Background technology

Along with the development of Fibre Optical Communication Technology and industry, communication is increasingly mature and formed a plurality of series of products with the structure of outdoor optical cable.At the fiber cable laying technical elements, in recent years, the air transporting optical cable technology also is developed.The air transporting optical cable system is a kind of pressurized air (about 10kg/cm2) that is used to from air compressor, by blow head fiber unit is blown into fiber cable laying technology in the mounted hollow cable run.When carrying out actual laying, be that the optical fiber that at first will set number is made the little tube unit of optical fiber, the easy light and handy cable configuration of formation is sent into to give in the pipeline of establishing by air blowing then and is gone behind the stranding.The air transporting optical cable technology has its advantage in certain occasion.But its system of laying is comparatively single, and construction is extremely inconvenient.System of layings such as that particularly this air transporting optical cable can't adapt to is built on stilts, direct-burried more can't carry out optical cable bifurcated construction midway, and this has just placed restrictions on the application scenario of air transporting optical cable greatly.The existing integrated optical cable that the mini optical fibre unit is combined with general pipe core bundle cable structure occurs in the prior art; this integrated optical cable not only can play dual mechanical protection to optical fiber; and use the occasion of mini optical fibre in specific needs; the oversheath and the center sleeve that only need the strip off optical cable; corresponding mini optical fibre unit bifurcated from optical cable is come; insert pipeline and get final product, thereby avoided employing air-blowing optical cable that optical fiber is blown into ducted troublesome operations.

Above-mentioned integrated optical cable is because its special applied environment has determined it need have certain tension compressive property, therefore; also vertical usually steel band and the anti-element of opening of being surrounded by between its oversheath and sleeve pipe; this just makes that optical cable is heavier, and toughness is not strong, lays occasion and is subjected to certain restriction.

The utility model content

It is better that the utility model purpose is exactly to propose in order to overcome the deficiencies in the prior art a kind of tension crushing resistance, can be in case animal gnaws to give a tongue-lashing stings, and weight light, lay flexible integrated optical cable.

In order to reach the foregoing invention purpose, the technical solution of the utility model is: a kind of novel protection against rodents integrated optical communication cable, it comprises cable core, center sleeve, oversheath successively by nexine to skin, described cable core comprises a plurality of mini optical fibres unit, is filled in the fine cream between mini optical fibre unit and the center sleeve, each described mini optical fibre unit comprises little sleeve pipe, is arranged on the interior optical fiber of little sleeve pipe, is filled in the fine cream between described little sleeve pipe and the optical fiber, also vertical respectively being surrounded by waterstop and FRP reinforcing band between the described center sleeve outside and the oversheath inboard.

Further, tear rope in described FRP reinforcing band arranged outside.

Described mini optical fibre unit is 2～8.

Optical fiber in each described mini optical fibre unit is many.

Described a plurality of mini optical fibres unit phase spiral is stranded, phase SZ is stranded or be provided with abreast in the described center sleeve.

Because the utilization of technique scheme, the utility model compared with prior art has following advantage: the integrated optical cable of the utility model replaces having now steel band and the reinforcement that is provided with in the integrated optical cable by vertical bag FRP reinforcing band between oversheath and center sleeve, because the FRP reinforcing band mainly is to make with glass fibre, it has stronger tension compressive property, but also has the characteristic that prevents that animal from biting, when the optical cable of making has above-mentioned performance, whole optical cable weight is also lighter, is fit to laying and laying of a lot of occasions.

Description of drawings

Accompanying drawing 1 is the utility model communications optical cable viewgraph of cross-section;

Wherein: 1, cable core; 11, mini optical fibre unit; 111, optical fiber; 112, little sleeve pipe; 113, fine cream; 12, fine cream; 2, center sleeve; 3, oversheath; 4, waterstop; 5, FRP reinforcing band; 6, tear rope;

Embodiment

Below in conjunction with accompanying drawing the utility model preferred embodiment is elaborated:

Optical cable as shown in Figure 1, it comprises cable core 1 successively from nexine to skin, center sleeve 2, waterstop 4, FRP reinforcing band 5, outer jacket 3, described cable core 1 comprises a plurality of mutually stranded or mini optical fibre unit 11 of be arrangeding in parallel, be filled in the fine cream 12 between mini optical fibre unit 11 and the center sleeve 2, number can be set according to concrete use occasion in mini optical fibre unit 11, be not limited to 3～6, mini optical fibre unit 11 is stranded with spiral, the SZ mode is stranded or parallelly enter center sleeve 2 inside of being made by the PBT material, and fills with fine cream 12 between center sleeve 2 and each mini optical fibre unit 11.

Little sleeve pipe 111 that each mini optical fibre unit 11 is made by the PBT material, form, and fill with fine cream 112 at optical fiber 112 wherein and the fine cream 113 that is filled between little sleeve pipe 111 and the optical fiber 112.In the present embodiment, little cover external diameter of pipe is 1.6mm or littler, and wall thickness adopts 0.2mm, and portion is provided with many colored optical fibers 112 within it, usually its inner place 12 the single-mode fiber 112 of 12 kinds of standard colour charts arranged.

Be surrounded by waterstop 4, FRP reinforcing band 5 and be positioned at outermost oversheath 3 in that center sleeve 2 peripheries are also vertical successively, wherein FRP reinforcing band 5 is for having the reinforcement unit of certain thickness and width.Because the FRP reinforcing band made by glass fibre, it not only has stronger tension compressive property, but also is difficult for being broken by the teeth by animal, in underground, the pipeline of being fit to very much be laid in.

Oversheath 3 is the PE sheath, also available black low smoke and zero halogen (LSZH) polyolefin jacket.Also be placed with two and tear rope 6 in oversheath 3, it is in order to be convenient to divest oversheath 3 when the engineering construction.

Claims

1. novel protection against rodents integrated optical communication cable, it comprises cable core (1) successively by nexine to skin, center sleeve (2), oversheath (3), described cable core (1) comprises a plurality of mini optical fibres unit (11), be filled in the fine cream (12) between mini optical fibre unit (11) and the center sleeve (2), each described mini optical fibre unit (11) comprises little sleeve pipe (111), be arranged on the optical fiber (112) in little sleeve pipe (111), be filled in the fine cream (113) between described little sleeve pipe (111) and the optical fiber (112), it is characterized in that: also vertical respectively waterstop (4) and the FRP reinforcing band (5) of being surrounded by between described center sleeve (2) outside and oversheath (3) inboard.

2. a kind of novel protection against rodents integrated optical communication cable according to claim 1 is characterized in that: tear rope (6) in described FRP reinforcing band (5) arranged outside.

3. a kind of novel protection against rodents integrated optical communication cable according to claim 1, it is characterized in that: described mini optical fibre unit (11) is 2～8.

4. a kind of novel protection against rodents integrated optical communication cable according to claim 1 is characterized in that: the optical fiber (111) in each described mini optical fibre unit (11) is many.

5. a kind of novel protection against rodents integrated optical communication cable according to claim 1 is characterized in that: described a plurality of mini optical fibres unit (11) phase spiral is stranded, phase SZ is stranded or be provided with abreast in the described center sleeve (2).