CN202204972U

CN202204972U - Waterproof stern line

Info

Publication number: CN202204972U
Application number: CN201120350187XU
Authority: CN
Inventors: 邹根龙; 何伟
Original assignee: WUJIANG XINDA TONGXIN TECHNOLOGY Co Ltd
Current assignee: JIANGSU XINDA COMMUNICATION TECHNOLOGY CO., LTD.
Priority date: 2011-09-19
Filing date: 2011-09-19
Publication date: 2012-04-25
Anticipated expiration: 2021-09-19

Abstract

The utility model discloses a waterproof stern line, comprising a plurality of single-core fastening optical fibers arranged in bundle type, a plurality of composite layers and a plurality of protecting sleeves, wherein the composite layers and the protecting sleeves are orderly wrapped outside the single-core tightening optical fibers; and a reinforcing element is filled between the single-core tightening optical fiber and the composite layer. The waterproof stern line of the utility model has desirable mechanical performance and environmental performance, and convenience of continuing and paving, and is capable of supporting the transmission of large volume data.

Description

Waterproof Pigtail Cable

Technical field

the utility model relates to a kind of Waterproof Pigtail Cable.

Background technology

utilize the optical fiber communication of light transmitting fiber as the transmission medium of light, why can obtain develop rapidly in decades at this, are owing to it has (1) transmission frequency bandwidth, message capacity is big; (2) decay is little; (3) not determined by outstanding advantages such as electromagnetic interference (EMI); But the quality of light own is fragile; The defective that physical strength is low requires it to constitute optical cable at outer suit protecting sheathing; So that for it provides mechanical protection, be to the basic demand of protecting sheathing: guarantee make, lay, optical fiber does not rupture in the use, and suffered stress is little; Must in manufacture process, keep the original transmission performance of optical fiber, and guarantee that optical fiber transmission performance in long-term use is reliable and stable.

at present common Waterproof Pigtail Cable is made up of two or above single core ordinary optical cable, center strengthening core, water blocking layer, composite bed and sheath; The Waterproof Pigtail Cable of this structure is when being connected to equipment; Need be at 0.5 meter or 1 meter; Or on the longer length sheath and composite bed are divested, on therein the ordinary optical cable various terminal is installed then, like FC, SC, LC, SMA, MTRJ or the like.Adopt the metal water joint to protect in the part of opening stripping.

yet; Common Waterproof Pigtail Cable; Though the tension of main push-towing rope part and anti-pressure ability receive the protection of the center strengthening core in it; Have certain mechanical strength, but the optical cable of this structure optical cable that branch goes out after opening stripping only is an ordinary optical cable, does not possess any anti-extrusion ability.Yet the environment that Waterproof Pigtail Cable was applied to is open air such as building site, scene often, and environment for use is complicated, thereby possibly receive the interruption that the external environment influence causes communication signal.

Summary of the invention

the utility model purpose is: a kind of Waterproof Pigtail Cable of mechanical property and environmental performance preferably that has is provided, and it continues and lays conveniently, can support the Large Volume Data transmission.

The technical scheme of the utility model is: a kind of Waterproof Pigtail Cable; Comprise that some are single core tight tube fiber of pencil layout and are coated on said some single core tight tube fibers outer composite bed and sheath successively, are filled with reinforcing element between said single core tight tube fiber and the composite bed.

said single core tight tube fiber by bare fibre, be coated on the coat on bare fibre surface and be coated on the outer tight cover coating of coat and constitute.

said reinforcing element is the aramid yarn reinforcing element; Said composite bed is aluminium-plastic tape or composite steel-plastic belt.

The utility model has the advantages that:

Some single core tight tube fibers are adopted in 1, the utility model, make optical cable integral body have external diameter little, in light weight, be prone to peel off, advantage such as good bending property.

2, the utility model are filled with the aramid yarn reinforcing element, between inner sheath and oversheath, are provided with the aramid yarn reinforcing element between single core tight tube fiber and composite bed, can improve the mechanical property and the environmental performance of inside cable.

3, the utility model continue conveniently, and support the Large Volume Data transmission, are applicable to that the light of tail optical fiber, wire jumper, optical communication equipment machine room and Optical Distribution Frame connects.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described:

Fig. 1 is the radial section synoptic diagram of the utility model.

wherein: 1 core tight tube fiber; 11 bare fibres; 12 coats; 13 tight cover coatings; 2 composite beds; 3 sheaths; 4 reinforcing elements.

Embodiment

embodiment: as shown in Figure 1; A kind of Waterproof Pigtail Cable; Comprise that some are single core tight tube fiber 1 of pencil layout and are coated on the composite bed 2 and sheath 2 outside said some single core tight tube fibers 1 successively, are filled with aramid yarn reinforcing element 4 between said single core tight tube fiber 1 and the composite bed 2.Wherein, said composite bed 2 is aluminium-plastic tape or composite steel-plastic belt.

said single core tight tube fiber 1 by bare fibre 11, be coated on the coat 12 on bare fibre 11 surface and be coated on coat 12 outer tight cover coatings 13 and constitute.

The radical of above-mentioned single core tight tube fiber 1 is generally 2,4,6,8,10,12, has just enumerated a kind of Waterproof Pigtail Cable that includes 12 single core tight tube fibers 1 among present embodiment Fig. 1.

the utility model adopts some single core tight tube fibers 1, make optical cable integral body have external diameter little, in light weight, be prone to peel off, advantage such as good bending property.

the utility model is filled with aramid yarn reinforcing element 3 between single core tight tube fiber 1 and composite bed 2, can improve the mechanical property and the environmental performance of inside cable.

The material of said sheath 2 can be flame-proof polyvinyl chloride (PVC), low smoke halogen-free flame-retardant polyolefin (LSZH), polyurethane (TPU) or the like.

said fibre core 11 can be single mode G652, G655 or G657 optical fiber, also can be multimode A1a or A1b optical fiber.

the utility model continues conveniently, and supports the Large Volume Data transmission, is applicable to that the light of tail optical fiber, wire jumper, optical communication equipment machine room and Optical Distribution Frame connects.

Only be the concrete exemplary applications of the utility model more than , the protection domain of the utility model is not constituted any limitation.Except that the foregoing description, the utility model can also have other embodiment.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop within the utility model scope required for protection.

Claims

1. Waterproof Pigtail Cable; It is characterized in that: comprise that some are single core tight tube fiber (1) of pencil layout and are coated on said some single core tight tube fibers (1) outer composite bed (2) and sheath (3) successively, are filled with reinforcing element (4) between said single core tight tube fiber (1) and the composite bed (2).

2. Waterproof Pigtail Cable according to claim 1 is characterized in that: said single core tight tube fiber (1) by bare fibre (11), be coated on the coat (12) on bare fibre (11) surface and be coated on the outer tight cover coating (13) of coat (12) and constitute.

3. Waterproof Pigtail Cable according to claim 1 and 2 is characterized in that: said reinforcing element (3) is the aramid yarn reinforcing element.

4. Waterproof Pigtail Cable according to claim 1 and 2 is characterized in that: said composite bed (2) is aluminium-plastic tape or composite steel-plastic belt.