Patent ID: 7185928

Claim:
A magnetic lock comprising: a bottom cover shell; a top cover shell mounted on said bottom cover shell; a latch movably mounted inside said top cover shell, said latch having at least one lug; a movable holder member mounted inside said top cover shell; a positioning structure adapted to hold said movable holder member in said top cover shell in position; and a solenoid mounted on said movable holder member, said solenoid device having a plunger slidably received therein and a stop block fastened to said plunger and adapted to act relative to said at least one lug of said latch to control movement of said keeper; wherein said positioning structure comprises a spring member provided at one end of said top cover shell and stopped against one end of said movable holder member, a locating block provided at an opposite end of said top cover shell and aimed at said spring member, said locating block having an axle hole, a transverse groove for supporting said movable holder member in a first position, and a longitudinal groove for supporting said movable holder member in a second position, said transverse groove and said longitudinal groove being formed on a front face of said locating block at different depths, and an adjustment device mounted in said axle hole of said locating block and stopped at one end of said movable holder member opposite to said spring member and adjustable to control the position of said movable holder member between said first position and said second position, said adjustment device being a rod member mounted in said axle hole and having at least one peripheral pin for selectively positioning in said transverse groove and said longitudinal groove to selectively support said movable holder member in said first position and said second position.