Patent ID: 8186193

Claim:
A lock cylinder structure comprising: a cylinder body having a plurality of upper pin holes and a accommodating hole; a plug disposed within the cylinder body and having an outside wall, a keyhole, a plurality of lower pin holes and a through hole in communication with the outside wall and the keyhole; a plurality of upper pins disposed within the upper pin holes; a plurality of lower pins disposed within the lower pin holes; a first movable member disposed at the accommodating hole of the cylinder body and having an end facing the through hole; a second movable member disposed at the through hole of the plug and having a first side contacting against the end of the first movable member, a second side opposite to the first side and a push-receiving surface formed at the second side; and wherein the accommodating hole has an upper slot portion and a lower slot portion, an inner diameter of the lower slot portion is smaller than that of the upper slot portion.