Patent ID: 6179514
Filing Date: 2001-01-30
Classification: B25G,F16B,F16L,Y10S,Y10T

Abstract:
A telescopic tube joint, comprising:a sleeve adapted to securely couple an outer tube and an inner tube, the sleeve defining a bore and a locking chamber communicating with the bore, the sleeve having an open slot in a side wall thereof for communicating with the locking chamber and a ring step formed on an inner wall thereof opposite to the open slot;a sleeve cap connected to the sleeve and having a central hole defined therein, the sleeve cap forming a small end with a key integrally formed to correspond to the open slot of the sleeve and having a ring step on the bottom thereof corresponding to the ring step of the sleeve;at least two locking rings, each having an annular member with a press tab connected to the annular member, each annular member being received in the locking chamber of the sleeve and defining a through hole through which the inner tube passes; andat least one biasing member provided between the annular members.