To provide a waste water pumping device connected not with a toilet stool and capable of separating a crushing means inside the waste water pumping device from the outside by closing a flow-in-port provided in the waste water pumping device and preventing waste water remaining inside the waste water pumping device from leaking to ensure safety and sanitary condition.
An opening and closing part provided in the flow-in-port of the waste water pumping device is provided with a valve element closing the flow-in-port, a closing biasing means for biasing the valve element toward the outside of a waste water pumping chamber and closing it, and a driving mechanism part connecting the closing biasing means with the valve element to drive the valve element. The flow-in-port is closed by the closing biasing means when leaving the toilet stool.
SHIGEMATSU KUNIHARU
NODA SHOSAKU
| JPH04341354A | 1992-11-27 | |||
| JP2002275971A | 2002-09-25 |