Patent ID: 8113020

Claim:
A lock, comprising: a housing; a cover secured to one end of the housing, wherein a gap is formed between the cover and the housing; a lock cylinder holder secured to the housing; a lock cylinder rotatably mounted in the lock cylinder holder; a cam received in the housing and secured to the lock cylinder; a resisting shaft rotatably mounted in the housing and comprising a frustum shaped end; at least one latching block received in the gap, wherein each of the at least one latching block comprises an inclined surface corresponding to the frustum shaped end; and at least one first elastic member connecting the at least one latching block to the cover; wherein, at least one first latching protrusion protrudes from the cover, and at least one second latching protrusion protrudes from the latching block and faces the at least one first latching protrusion, each of the at least one first latching protrusion cooperates with each of the at least one second latching protrusion to latch each of the at least one first elastic element.