Easy-to-install door lock with improved anti-torque effect for outside rose assembly

摘要

A door lock includes a main body including a transmission assembly and a positioning assembly. The positioning assembly includes an inside seat and an outside seat. An inside rose liner is mounted around the inside seat and includes two positioning holes. An inside rose is mounted around the inside rose liner. An anti-torque ring is mounted around the outside seat and includes two lugs formed thereon. Two positioning posts respectively project from the lugs and extend along a longitudinal direction of the anti-torque ring. An outside rose liner includes an inner threading that is engaged with an outer threading of the outside seat. The outside rose liner includes a side with an annular recessed portion for receiving the anti-torque ring. The annular recessed portion includes two recess extensions for positioning the lugs of the anti-torque ring. An outside rose is securely mounted around the outside rose liner to rotate move therewith. Rotation of the outside rose causes longitudinal movement of the outside rose and the outside rose liner relative to the outside seat to suit different door thickness.