TELESCOPIC EXTENSION PIPE FOR A VACUUM CLEANER

摘要

The telescopic extension pipe for a vacuum cleaner, including a large outer pipe having a guide projection hole and a fixing hole; a boss having a guide projection inserted into the guide projection hole and extending to a hollow part of the outer pipe, and a female screw hole on its outer circumference; a fixing lock rotably installed on a female screw hole of the boss by a bolt member and having a fixing projection and slant opened surfaces; and an inner pipe of a small diameter removably inserted to the outer pipe and a plurality of protuberances receiving the fixing lock's guide projection. and a guide groove formed longitudinally.