Water-flushing mechanism with self-emptying effect and variable height

摘要

This water-flushing mechanism comprises a movable valve contained in an external case. This external case has a variable height in order to secure the lid and tank. The variation in height of the case simultaneously causes that of the movable valve to vary by means of a system which is undismantlable so that it cannot be misadjusted. The movable valve has, in its lower part, a nozzle whose orifice, during the emptying process, is located in the necking of the flow formed by the cap. This nozzle creates a phenomenon of lifting of the movable valve, by the combined action of the water on its profile, and of a venturi effect intended to keep, in the external case, a reduced pressure which is strong enough to compensate for the inlets of air through the connections between the fixed parts and the variable parts. IMAGE