AUTO MULTI LOCKING FOR SLIDING WINDOWS

摘要

An automatic lock for sliding windows is provided to directly assemble a main body of the automatic lock with a handle to securely fix an assembly. In an automatic lock for sliding windows, a locking piece is formed with locking steps and attached to a window frame. A housing has first and second guide holes(111,112) formed at positions corresponding to the locking steps, and a shaft hole. A first locking member(120) has a locking ring(121) moving in the longitudinal direction of the locking piece when an opened window is closed, a first pressing spring integrally formed with the locking ring, and a slide-contacting member. A second locking member(130) has a locking ring(131) moving in the longitudinal direction of the locking piece when the window is closed, a second pressing spring, and a gear-contacting member. A gear(140) is installed in the housing and has a rectangular shaft hole, a second actuating protrusion, and a plurality of slide-actuating protrusions. A slide(150) has a first slide and a second slide. First and second springs(160,161) are installed between the first spring contacting member and the housing and between the second locking member and the housing. And a return spring(162) applies force to make the slide return to an original position when the length of the spring is elongated by the movement of the slide.