Patent ID: 7431265

Claim:
A swiveling handle mounting mechanism mounted on a pump of a hydraulic unit of a hydraulic garage jack, comprising: a valve chamber defined in said pump and accommodating a release valve, said release valve defining a fluid chamber; a seat affixed to said pump, said seat having a center hole disposed in fluid communication with the fluid chamber of said pump; a swiveling holder, said swiveling holder having two upright sidewalls arranged at two sides, and a vertically extending circular bottom hole coupled to said seat to allow swiveling of said swiveling holder on said seat; a handle sleeve pivotally coupled between the two upright sidewalls of said swiveling holder and holding an operating handle; a pressure plate affixed to said seat, said pressure plate having a center hole aimed at the center hole of said seat; a plunger inserted into the fluid chamber of said pump and pivotally coupled to said handle sleeve for moving by said handle sleeve to pump a hydraulic fluid out of the fluid chamber of said pump when the operating handle that is connected to said handle sleeve is operated; a return spring sleeved onto said plunger and stopped between said pressure plate and one end of said plunger outside said pump; and a locking mechanism installed in one upright sidewall of said swiveling holder for locking said handle sleeve, said locking mechanism comprising a ratchet fixedly arranged around the periphery of said pressure plate, a pinhole on one upright sidewall of said swiveling holder, and a lock pin inserted through said pinhole on the associated sidewall of said swiveling holder and movable relative to said swiveling holder between a locking position where said lock pin engages said ratchet to lock said handle sleeve to said swiveling holder and an unlocking position where said lock pin is disengaged from said ratchet for allowing movement of said handle sleeve relative to said swiveling holder, a spring member mounted on said lock pin and stopped between a part of said swiveling holder and one end of said lock pin to hold said lock pin in said unlocking position, and an actuating member pivoted to the upright sidewall of said swiveling holder holding said lock pin for moving said lock pin between said locking position and said unlocking position, said actuating member having a finger rod extended from one end thereof for operation by hand.