Room air suction device for directly extracting fecal gases from toilet bowl, has sealing member which creates water-tight seal in flush pipe when flap is in closed position

摘要

A self-opening flap (7) is provided as an air intake throttle, and pivots about an axis orthogonal to the flow direction of flush water (12.2) between a closed position (14) and an opened position (15). When there is a flush water flow, at least one sealing member (7.4) creates a water-tight seal in the flush pipe (3) when the flap is in the closed position. A vacuum generator (8) in the form of a fan is triggered by a manual operation or a pressure sensor.