Necessary piping for corrugated multi-cavity optical fibre conduit

The utility model relates to an auxiliary pipe for corrugation multi-cavity optical cable pipes. An abutting joint component(II) of the utility model comprises sub-tube connector clips(1), two mother-tube semi connector clips(2), a semi jacket(3) and fastening pieces(4). A semi-circle tile body(2A) and internal screws(2B) which are arranged on the two ends of the semi-circle tile body are all arranged on the mother-tube semi connector clip(2). The shape of the internal screws(2B) matches with the shape of two mother tubes(8). The mother-tube semi connector clip(2) tightly holds the ends of the two mother tubes which are spliced from the exterior. The sub-tube connector clip(1) is wrapped in the two mother-tube semi connector clips(2). A limit flange(1C) is arranged on the center of each inserting hole(1A) of the sub-tube connector clips(1). The end of each sub-tube(8A) is inserted into each of the inserting holes(1A) through the two ends of sub-tube connector clips(1). The semi jacket(3) tightly holds the external surface of the mother-tube semi connector clip(2). The mother-tube semi connector clip(2) and the semi jacket(3) are fixed on the ends of the abutting jointed mother tubes(8) by the fastening pieces(4). The utility model has advantage of ability to ensure the arrangement quality of optic fibers and fast assembly. Moreover, the utility model greatly reduces labor intensity and markedly enhances production efficiency.