Patent ID: 7437903

Claim:
A lock assembly comprising: a casing; said casing having two lock through holes on one sidewall thereof; a combination lock mounted in said casing on the middle; a locking plate mounted in said casing and movable axially forwards/backwards relative to said casing, said locking plate having two butts disposed at one lateral side thereof corresponding to the lock through holes of said casing and a hook portion at one end thereof; an operating member mounted in one end of said casing and operable to move said locking plate between a first position where said butts are respectively stopped at the lock through holes of said casing and a second position where said butts are moved away from the lock through holes of said casing; a cylinder lock mounted in an opposite end of said casing, said cylinder lock having a bottom actuating block rotatable with a key; and a link, said link having a protruding block suspending at one side of said combination lock and movable by the bottom actuating block of said cylinder lock between a first position where said link is engaged with the hooked portion of said locking plate for movement with said locking plate and a second position where said link is disengaged from the hooked portion of said locking plate; wherein said operating member is a rotary knob pivoted to said casing and rotatable to move said casing between the first position and the second position.