SANITARY WASHING DEVICE

To provide a sanitary washing device capable of suppressing backflow of washing water.SOLUTION: The sanitary washing device according to an embodiment comprises a hot water storage tank, a water discharge nozzle, a vacuum breaker, a water supply part, and a check valve. The hot water storage tank stores washing water. The water discharge nozzle discharges the washing water stored in the hot water storage tank toward a private part of a user. The vacuum breaker suppresses the backflow of the washing water. The water supply part is connected to the hot water storage tank and supplies the washing water to the hot water storage tank. The check valve is provided in an inflow part of the hot water storage tank into which the washing water flows from the water supply part, and suppresses the backflow of the washing water to the water supply part. The check valve has a seal member that seals a water supply flow channel and the inflow part formed in the water supply part when the washing water is not supplied from the water supply part, and a protruding part that is provided on a water supply flow channel side than the seal member and protrudes toward the water supply flow channel. The protruding part narrows the water supply flow channel when the check valve moves in a closing direction rather than in a fully open state.SELECTED DRAWING: Figure 6 【課題】洗浄水の逆流を抑制すること。【解決手段】実施形態に係る衛生洗浄装置は、貯湯タンクと、吐水ノズルと、バキュームブレーカと、給水部と、逆止弁とを備える。貯湯タンクは、洗浄水を溜める。吐水ノズルは、貯湯タンクに溜められた洗浄水を使用者の局部に向けて吐水する。バキュームブレーカは、洗浄水の逆流を抑制する。給水部は、貯湯タンクに接続され、貯湯タンクに洗浄水を供給する。逆止弁は、給水部から洗浄水が流入する貯湯タンクの流入部に設けられ、給水部への洗浄水の逆流を抑制する。逆止弁は、洗浄水が給水部から供給されない場合に、給水部に形成された給水流路と流入部とシールするシール部材と、シール部材よりも給水流路側に設けられ、給水流路に向けて突出する突出部とを備える。突出部は、逆止弁が全開状態よりも閉方向に移動した場合に、給水流路を狭める。【選択図】図６