Patent ID: 7421870

Claim:
A lock core assembly having a lock shell having an outer surface; a core mount being formed longitudinally through the lock shell and having an inner surface; multiple upper pin chambers being formed radially through the outer surface of the lock shell, being aligned longitudinally and communicating with the core mount; at least one retaining cavity being formed in the outer surface of the lock shell, formed around and communicating with at least one of the upper pin chambers; and a lid being mounted detachably on the outer surface of the lock shell and covering the upper pin chambers; a lock core being mounted rotatably in the core mount in the lock shell and having an outer surface; and an interface being defined between the outer surface of the lock core and the core mount; a keyhole being formed longitudinally in the lock core; and multiple lower pin chambers being formed radially through the outer surface of the lock core, communicating with the keyhole, aligning with, corresponding to and communicating with the upper pin chambers; and a pin segment being mounted between the lock shell and the lock core and having at least one suspended pin assembly being respectively mounted in at least one of the upper pin chambers communicating with the at least one retaining cavity and at least one corresponding lower pin chamber and each one of the at least one suspended pin assembly having a lower pin being mounted slidably in a corresponding lower pin chamber and having a top end; a suspended upper pin being mounted slidably in a corresponding upper pin chamber with an interval over the lower pin; and a second spring being attached to the suspended upper pin; and multiple abutting pin assemblies being mounted in the other upper and lower pin chambers away from the at least one retaining cavity and each abutting pin assembly having a lower pin being mounted slidably in one of the lower pin chambers and having a top end; an upper pin being mounted slidably in a corresponding upper pin chamber and having a top end; and a bottom end being abutted with the top end of the lower pin; and a first spring being mounted in a corresponding upper pin chamber between the upper pin and the lid and pressing the upper pin against the lower pin.