Pump-storage device and pump-storage sewage truck including the same

A pump-storage device comprising:

• a treatment container including an interior separated by a partitioning board into an upper chamber and a lower chamber, wherein the upper chamber intercommunicates with the lower chamber via a first intercommunication port, wherein the treatment container further includes an inlet intercommunicating with the upper chamber and a second intercommunication port intercommunicating the lower chamber with an outside;
• a switching module including a first control valve and a second control valve, wherein the first control valve is configured to control intercommunication between the upper chamber and the lower chamber, and wherein the second control valve is configured to control intercommunication between the upper chamber and a gas suction source;
• a telescopic module including an actuation rod and an actuation cylinder controlling telescopic movement of the actuation rod, wherein the actuation rod extends through the first intercommunication port;
• and
• an intercommunication control module including a first fixing block, a second fixing block, and a third fixing block which are mounted from top to bottom in sequence on the actuation rod, wherein an upper stop plate is disposed between the first fixing block and the second fixing block, wherein a lower stop plate is disposed between the second fixing block and the third fixing block, and wherein the upper stop plate and the lower stop plate are elastically supported by an elastic unit.