Abstract: Improvements introduced to discharge devices applied to sanitary toilets, discharge devices developed as obstruction element for the opening and closing of the outflow pit of the sanitary toilet, particularly those without siphon; such discharge devices include a sanitary toilet projected with a funnel type duct allowing adaptation of a funnel to outflow the dejections and where the elements of the discharge will be installed, such as a member of the articulated floodgate, counterbalance member and drive in the form of a door latch with magnetic or electrical/electronic lock which allow better adjustment to the operation of the sanitary toilet discharge, allowing them to be cleaned with only 3 liters of water per discharge.