Combined skeleton optical cable

Abstract

The invention belongs to the technical field of optical cables and particularly relates to a combined framework optical cable. The optical cable comprises an outer sheath on the outermost layer and an inner cable core assembly, wherein the cable core assembly comprises a spiral center shaft and six cable core belts, the spiral center shaft is spirally twisted around the axis of the spiral center shaft, and all the cable core belts are evenly arranged around the spiral center shaft; a buckling structure is arranged at a contact part of the spiral middle shaft and the cable core belt; the middle part of the cable core belt is provided with a cable core cavity, and the cable core cavity is filled with an optical fiber belt. The cable core assembly further comprises a shoulder strap clamping piece, and every two adjacent cable core belts are fixed together through the corresponding shoulder strap clamping piece. The optical cable is advantaged in that the whole framework structure is formed by combining the cable core belt, the shoulder belt clamping piece and the spiral center shaft, the cable core belt and the shoulder belt clamping piece are in a horizontally-extending strip shape in the natural state, therefore, during production, an optical fiber ribbon can be easily placed into a cable core cavity of the cable core belt, and after the cable core belt, the shoulder belt clamping piece and the spiral center shaft are combined, under the action of the spiral center shaft, an additional installation process is supplemented, the whole formed cable core assembly is in a spiral twisting state.

Description

technical field [0001] The invention belongs to the technical field of optical cables, in particular to a combined skeleton optical cable. Background technique [0002] Skeleton optical cable is an optical cable that contains an inner skeleton. The cable core is embedded in the groove of the spiral plastic skeleton by the primary coated optical fiber. This kind of optical cable can make the optical fiber less affected by lateral pressure. The material of the skeleton, the manufacturing process, the pitch of the helix, the shape, size and smoothness of the groove have a great influence on the performance of the optical fiber. Existing skeleton optical cables can be divided into two types: one-slot single-fiber and one-slot multi-fiber. Since the optical fiber is placed in the pre-prepared fiber optic cable spiral skeleton groove, the optical fiber can move freely, and the skeleton bears axial tension and lateral tension. Therefore, it has excellent mechanical properties and ...

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide an optical cable with a combined skeleton structure, which has a straight extending core ribbon, which can accurately and quickly fill the optical fiber ribbon into its interior, and then assemble the skeleton structure together, so as to solve the problem of high difficulty in the production of existing large-core skeleton optical cables

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