Automatic flushing device for electronic bidet having automatic flushing function for both water tank and direct flush valve toilet

An automatic flushing device for an electronic bidet, in which the automatic flushing device has an automatic flushing function and is for both a water tank toilet and a direct flush valve toilet, the automatic flushing device comprising:

• a stepping motor configured such that whether a user is in a sitting position or a standing up position is detected by a control unit of the electronic bidet and the stepping motor is rotated by a control signal set from the control unit;
• a roller portion for flushing mounted at a rotary shaft of the stepping motor, the roller portion for flushing being configured such that a roller is rotated by the control signal of the control unit and a wire is wound and unwound, thereby opening and closing a water sealing cover or pressing an opening and closing valve;
• and
• the opening and closing valve mounted at a casing of the stepping motor, the opening and closing valve being configured such that a flow path of a valve body is open by a rotation of a pressing member when the opening and closing valve is applied to the direct flush valve toilet, thereby discharging water in a pressure chamber of a flush valve to an inner portion of a toilet body and flushing out the water,
• wherein, when the roller is rotated and then is returned, the stepping motor is configured to slow down a rotational speed of the roller such that the opening and closing valve is slowly closed, thereby preventing water in the pressure chamber from generating a water hammer phenomenon.