A U-shaped layer twisted skeleton ribbon optical cable and its slot-in device

Abstract

The invention discloses a U-shaped layer twisted skeleton ribbon optical cable, comprising a reinforcing core, a skeleton, a fiber layer and a sheath arranged from the inside to the outside. It runs through the entire skeleton, the skeleton is a cylinder, and its outer edge is symmetrically provided with a plurality of U-shaped grooves, each U-shaped groove runs through the entire skeleton along the axial direction of the skeleton, and each U-shaped groove is provided with an optical fiber ribbon Matrix, in the radial direction of the skeleton, the optical fiber ribbon matrix includes P optical fiber ribbons arranged in parallel, and Q optical fibers are arranged horizontally in each optical fiber ribbon, where P is a natural number between 2 and 12, and Q is 4 to 24 A natural number between, in the axial direction of the skeleton, all P optical fiber ribbons in each U-shaped groove are twisted with each other in a unidirectional helical manner. The invention can solve the technical problem of low manufacturing efficiency of the skeleton due to the need to set the skeleton pay-off equipment in the existing skeleton ribbon optical cable.

Description

technical field [0001] The invention belongs to the technical field of optical communication transmission, and more particularly relates to a U-shaped layer twisted skeleton ribbon optical cable and a slot-in device thereof. Background technique [0002] The existing skeleton ribbon cable includes a unidirectional helical skeleton. The optical fiber ribbons are superimposed into a matrix form and embedded in the skeleton grooves. Optical fiber ribbons are characterized by consistent bending performance in all directions. [0003] However, the existing skeleton ribbon cable still has some deficiencies that cannot be ignored: first, the manufacturing efficiency of the skeleton is low due to the need to set the skeleton pay-off equipment; During the transitional stretching, the optical fiber ribbon will still be subjected to the lateral stress given by the skeleton, resulting in poor bending performance of the skeleton ribbon; third, the temperature performance of the skeleton...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the above defects or improvement needs of the prior art, the present invention provides a U-shaped layer stranded skeleton ribbon cable and its slotting device. , leading to the technical problem of low manufacturing efficiency of the skeleton, and when the optical fiber ribbon fixed in the skeleton groove is over-bent or over-stretched, the optical fiber ribbon will still be subjected to the side stress given by the skeleton, resulting in poor bending performance of the skeleton ribbon technical problems, and the technical problems of the poor temperature performance of the skeleton ribbon cable

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