Holkkiliitos pituudeltaan teleskooppimaisesti säädettävän putken ulkoputken ja sisäputken välillä

摘要

The invention relates to a sleeve joint between the outer and inner tubes of a tube with telescopic length adjustment. The sleeve joint comprises a first sleeve part, which is fixed permanently around the end of the outer tube (2), and a second sleeve part (20), which is with its internal thread (25) in attachment with the external thread (14) of the first sleeve part (10), while the inner tube (3) is able to slide inside the outer tube (2) and the sleeve joint. Inside the second sleeve part (20) is a friction-locking sleeve (40) surrounding the inner tube (3), the sleeve being axially compressible and thus expandable to friction-locking attachment when the sleeve parts (10, 20) are screwed with respect to each other.