AIR SUCTION DEVICE FOR TOILET BOWL DRAIN PATH

摘要

An air suction device for a toilet bowl drain path, capable of preventing occurrence of noise caused by air-containing water supplied to a rim. When a main valve (V1) is opened at a time point t1, control means opens an on-off valve (V2) to supply flush water from piping (12) to an ejector (50). When water flows in the ejector (50), the ejector sucks air in a negative pressure tank (30). Ejector discharge water that flows out of an outlet of the ejector (50) is lead into a water container (20), and air is separated in the water container (20) from the ejector discharge water. The separated air is discharged outside the water container (20) from an air vent (22). The water from which the air is separated is supplied to the rim (3) via piping (14). As a result, occurrence of noise caused by a burst of air bubbles and other reasons is prevented or suppressed when water flows out from the rim (3) to a toilet bowl (2).