Patent ID: 8316675

Claim:
A dual locking device comprising: a first casing and a second casing rotatably connected with the first casing, a receiving space defined between the first casing and the second casing, the second casing having a through hole defined therein; an axial shaft passing through the through hole of the second casing and being rotatable relative to the second casing; a latch member connected with the axial shaft for moving with the axial shaft; a locking mechanism received in the receiving space, the locking mechanism connected with the axial shaft for driving the axial shaft; and a key operated mechanism received in the receiving space and connected with the axial shaft, the key operated mechanism having a lock core disposed therein, the lock core having a key hole defined in one end thereof for adapting to be inserted by a key, such that the lock core adapts to be rotated by the key to drive the axial shaft, the key operated mechanism having a gear set disposed therein and connected with a bottom of the lock core for moving with the lock core, the gear set connected with the axial shaft for driving the axial shaft, the lock core having a connecting portion formed in one end thereof opposite to the key hole, the gear set having a first gear wheel fixedly mounted with the connecting portion, a second gear wheel rotatably engaged with the first gear wheel, a third gear wheel rotatably engaged with the second gear wheel and non-rotatably connected with one end of the axial shaft; wherein the locking mechanism and the key operated mechanism are separately operable to move the latch member between a locking position and an unlocking position.