Patent ID: 7100401

Claim:
A padlock, comprising: a housing; a shackle mounted on the housing and having a first end formed with a pivot shaft movably mounted in the housing and a second end formed with a locking portion moved with the pivot shaft and extended outward from the housing; a number lock mechanism mounted in the housing to lock and unlock the pivot shaft of the shackle; a key lock mechanism mounted on the housing and including a lock core rotatably mounted in the housing, and a limit knob located outside of the housing and rotated by rotation of the lock core, wherein the limit knob has a window; a movable block movably mounted in the limit knob of the key lock mechanism, wherein when the limit knob is moved away to release the locking portion of the shackle, the movable block is moved to an identification position synchronously; an identification member mounted on the movable block and directed toward the window of the limit knob, wherein when the movable block is moved to the identification position thereof, the identification member is aligned with and exposed outward from the window of the limit knob.