Telescopic threaded locking sleeve of blowpipe

The utility model discloses a telescopic threaded locking sleeve of a blowpipe. The telescopic pipe body is of an integrated structure formed by connecting a plurality of pipelines in a sleeved mode.The end part of the telescopic pipe body is connected with a pipe body head section; an external thread is arranged on the telescopic pipe body; butt joint clamping blocks are distributed at the end part of the head section of the pipe body along the circumference of the pipe at equal intervals; a gap is formed between every two adjacent butt joint clamping blocks; a clamping bulge is arranged onthe outer wall of the butt joint clamping block; antiskid bosses are distributed on the outer side wall of the external threaded sleeve along the circumference at equal intervals; internal threads connected with the external threads on the telescopic pipe body in a matched manner are formed in the inner side wall of the external threaded sleeve; the clamping protrusions correspond to the inwards-concave side faces of the a