Patent ID: 6854308

Claim:
A door lock, comprising: a housing having two plates to be mounted on opposite sides of a door respectively and a position base at between the plates; a driving mechanism having two handles pivoted on the plates respectively for swing, two pawls provided on the handles respectively having ends thereof extended inwards at between the plates and two arms received in the housing and pivoted thereon to be driven by the pawls respectively, and a driven mechanism having gears provided on the position base to be driven for rotation by the arms and a sliding block driven by the gears for reciprocation along a predetermined orientation; wherein the gears have a first gear, a second gear and a third gear; wherein the first gear is pivoted on the position base at between the position base and one of the plates and has two first flank portions, corresponding to one of the pawls; wherein the second gear is pivoted on the position base and has two second flank portions corresponding to the other one of the pawls; wherein the third gear is pivoted on the position base and meshed with the first gear and the second gear having a crank at a middle section thereof to move the sliding block for reciprocation.