Patent ID: 8381321

Claim:
A toilet apparatus, comprising: a toilet having a bowl and a housing surrounding said bowl; and a bowl cleaning unit for flushing cleaning water for cleaning the interior of said bowl, wherein said bowl cleaning unit has: a water supply channel for guiding pressurized cleaning water supplied from an external water supply source into said bowl; a detergent tank for storing a detergent for removing dirt on inner walls of said bowl; a detergent supply means for supplying the detergent from said detergent tank into said water supply channel and causing the detergent to mix into the cleaning water; an electromagnetic valve disposed in said water supply channel; and an air intake tube for introducing external air, wherein said detergent tank is provided in its top surface with a liquid outlet pipe and a liquid return pipe which are respectively connected to a circulation channel which is provided inside the toilet, wherein said detergent supply means has a detergent supply channel through which said detergent tank is connected to said water supply channel, said detergent supply channel being defined as a path extending through a portion of said circulation channel and a branching channel through said circulation channel is connected to said water supply channel, wherein said detergent tank is disposed in a space inside said housing, wherein said water supply channel is formed at its downstream end with a flushing port, wherein said detergent supply channel is connected to said water supply channel downstream of said electromagnetic valve and upstream of said flushing port, and wherein said water supply channel is provided with a mixer unit, said mixer unit being provided with an ejector having a small cross-sectional area of its flow channel in order to generate a high negative pressure for being utilized to suck up the detergent into said water supply channel, and said detergent supply channel is connected to said mixer unit and thereby the detergent is supplied to said water supply channel, and said mixer unit is connected at its portion upstream of said branching channel and downstream of said ejector to said air intake tube and thereby air is supplied to said water supply channel.