Double action security lock for protecting children against risk of drowning, has ratchet that is displaced between inactive position in which it cooperates with nut and active position in which it drives in rotation

摘要

The lock has a bolt and a latch nut (1) activated by a lever handle. The bolt has a ratchet (3) that implements cooperation of an actuating unit (2) of the bolt with the nut. The ratchet is displaced between an inactive position in which it cooperates with the nut and an active position in which it drives in rotation by the latch nut.