| 摘要 |
PURPOSE: A locking device for an extension pipe of a vacuum cleaner is provided to improve assembly efficiency by reducing the number of parts, and to offer convenience to a user by easily attaching/detaching the extension pipe. CONSTITUTION: A holder(100) is coupled to an adjusting handle(12), and has a fixing hole(121). A locking member(200) is inserted into an extension pipe(13) and the holder, and has an elastic locker fixed to the fixing hole. A locking releasing member(300) is slidably installed at the outer circumference of the locking member, and has a locking releasing protrusion(310) for separating the holder from the locking member.
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