A kind of miniature large core is counted inside cable
Technical field
The utility model relates to communications optical cable manufacturing technology field, is specifically related to a kind of miniature large core and counts inside cable.
Background technology
Along with the development of FTTH, Fiber to the home has started the large-area use of laying with FTTH optical cable, and FTTH has two kinds with high fiber count cable within doors at present, and the first is branched cable, and the second is optical distribution cable.Mainly there is following shortcoming in branched cable and optical distribution cable: because Cable Core Number is more, cable outer diameter is larger, takies conduit resource more; Optical cable is produced higher to the configuration requirement of equipment, when the large core of production is counted, needs deep bid tool pay off rack, and general device is difficult to meet the demands; In most optical cable, fill the pollutants such as fine cream, ointment, affected constructing operation.
Utility model content
For the deficiency existing in prior art, the utility model provides that a kind of external diameter is little, lightweight, save space, large core count that closeness is high, pollution-free, construction easily miniature large core count inside cable.
To achieve these goals, the utility model is to realize by the following technical solutions:
A kind of miniature large core is counted inside cable, comprise optical fiber and oversheath, its several by the loose tube fiber of optical fiber outer cladding pine sleeve pipe, be arranged in around inner sheath, the embedded reinforcement of described inner sheath, loose tube fiber is coated water blocking layer, oversheath, the embedded rope of tearing of described water blocking layer outward successively.
Above-mentioned a kind of miniature large core is counted inside cable, and the inner sheath center described in it arranges 1 or 2 reinforcements.
Above-mentioned a kind of miniature large core is counted inside cable, and the oversheath described in it is low smoke and zero halogen oversheath.
Above-mentioned a kind of miniature large core is counted inside cable, and the loose tube fiber described in it is 12 cores, 144 cores, 288 cores.
Above-mentioned a kind of miniature large core is counted inside cable, and the water blocking layer described in it adopts aramid yarn to form.
Beneficial effect:
The utility model adopts small loose tube fiber outer cladding water blocking layer, the structure of tearing rope, oversheath, and its external diameter is little, lightweight, and fiber cable laying is convenient, and without additives such as fine cream, is more suitable for construction and lays use.Product processing technique is simple, and yield rate is high.The loose tube structure that simultaneously adopts Multi-core number, external diameter is little, can meet the cabling requirement that closeness is high, saves wiring space.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, describe the utility model in detail;
Fig. 1 is structural representation of the present utility model.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with embodiment, further set forth the utility model.
With reference to Fig. 1, the 144 core optical cables of take are example, the utility model comprises 144 core fibres 1 and low smoke and zero halogen oversheath 6, by 12 loose tube fibers that form of 12 core fibre 1 outer cladding pine sleeve pipes 2, be arranged in around inner sheath 3, embedded 1 central reinforce member 4 of inner sheath 3, outer coated water blocking layer 5, the low smoke and zero halogen oversheath 6 that adopts aramid yarn to form successively of loose tube fiber, the embedded rope 7 of tearing of water blocking layer 5.
This 144 core cable outer diameter is 9.8mm, and external diameter is little, can meet the cabling requirement that closeness is high, saves wiring space, and its transmission objective and environmental index all meet the requirements.Optical cable is without fine paste additive, succinct in work progress, convenient, can not produce pollute be applicable to make somebody a mere figurehead, indoor horizontal or vertical wirings.
The utility model also can be applied to 12 core optical cables, 288 core optical cables.
The loose sleeve pipe of 12 core optical cables can be accomplished external diameter 1.3mm.
288 core optical cable maximum outside diameters are 14mm, greatly save and lay space.
More than show and described ultimate principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and instructions, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.