Patent ID: 6837642

Claim:
An expandable rod comprising: an outer tube provided at one end with a through hole; an inner tube slidably fitted into said outer tube and provided in an outer wall thereof with a plurality of gear slots which are arranged at intervals along a longitudinal direction of said inner tube such that said gear slots are corresponding in location to said through hole of said outer tube; a support frame mounted on the one end of said outer tube; a drive gear mounted in said support frame by an actuating shaft such that said drive gear is actuated by said actuating shaft whereby said actuating shaft is fastened at one end with a handle to facilitate the turning of said actuating shaft; a driven gear mounted in said support frame such that said driven gear is engaged with said drive gear, and said gear slots of said inner tube whereby said driven gear is driven by said drive gear to actuate said inner tube to move in relation to said outer tube at the time when said actuating shaft is turned counterclockwise; a locating member provided with a locating projection and pivoted to said support frame such that said locating projection is located in one of said gear slots of said inner tube via said through hole of the one end of said outer tube; and a frame cover pivoted to said support frame to shield said drive gear and said driven gear.