Patent ID: 6868705

Claim:
A lock comprising: a hollow casing having two open ends, multiple baffle blocks formed on an inner periphery of the casing close to one of the open ends; a sliding seat rotatably received in the casing and having a receiving hole defined in a first end face of the sliding seat and a connection end formed on a second end face of the sliding seat to extend out of the casing to firmly connect to a latch; a sliding block movably received in the receiving hole; and a control knob with a keyway defined inside the control knob for receiving therein a key, multiple locking plates and springs respectively received in a corresponding one of multiple locking slits defined through an outer periphery of the control knob to communicate with the keyway and a receiving space defined in a distal end face of the control knob to correspond to the receiving hole of the sliding seat such that the sliding block is able to be selectively received at a joint of the control knob and the sliding block to allow movement of the control knob to drive the latch to move accordingly.