| 摘要 |
A toilet bowl flush device where the quantity of water to be discharged can be accurately quantified is provided. Also provided is a toilet bowl flush device where a cistern can be reduced in size. A toilet bowl flush device ( 100 ) for discharging flush water in a cistern ( 1 ) to a water discharge pipe ( 101 ) for toilet bowl flushing, wherein the toilet bowl flush device ( 100 ) has a water intake pipe ( 30 ) having a water intake opening ( 32 ) within the cistern ( 1 ), a water discharge start valve ( 20 ) for introducing priming water, for starting water discharge, into the water intake pipe ( 30 ), and a trap ( 31 ) for forming an air stagnation section at a position in the middle of the water intake pipe ( 30 ) from the water intake opening ( 32 ) to the water discharge start valve ( 20 ), the position at which the air stagnation section is formed being a higher position relative to the water intake opening ( 32 ).
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