Lock for slide door and window

The utility model relates to a lock for sliding doors and windows, which is composed of a lock frame, a movable hook, a restoring spring and a fixation hook; the bottom of the lock frame is provided with a round hole; the side wall is provided with an oblong hole; the movable hook is L-shaped; the front end part of the L-shaped movable hook is provided with a hook head which extends out of the oblong hole and is matched with the fixation hook; the rear edge part is used as a handle; the bottom of the L-shaped movable hook is provided with a convex post; the convex post passes through the round hole of the bottom of a lock frame; the bottom of the lock frame is pressed by one end of a restoring spring; the other end is fixed by a screw cap on the convex post. The utility model has the advantages of simple structure, easy assemblage, high productive efficiency, etc. The utility model can achieve that actions of unlocking and window opening or window closing and locking can be completed by an action.