Patent ID: 7001098

Claim:
A lock structure, comprising: a first element having a guide hole and a first through hole located co-axially with the guide hole; a second element disposed under the first element and having a second through hole aligned with the first through hole; a guiding element rotatably and movably disposed in the guide hole, wherein the guiding element has a third through hole aligned with the first through hole; and a fixing pin inserted through the third through hole, the guide hole, the first through hole and the second through hole and having a first retaining portion, wherein the first retaining portion is formed on the lower portion of the fixing pin and located under the second element, cross sections of the first through hole, second through hole and third through hole are co-axially aligned with the cross section of the first retaining portion of the fixing pin, the first retaining portion pushes against the second element when the fixing pin rotates at an angle, and the cross sections of the first retaining portion, first through hole, second through hole, and third through hole are substantially rectangular.