A water tank waste water lifting mechanism for reverse osmosis system

The utility model discloses a water tank waste water lifting mechanism for reverse osmosis system, package drive arrangement and pumping device, its characterized in that: drive arrangement includes and is equipped with an impeller at this casing internal rotation by a casing that the intercommunication has inlet tube and outlet pipe on the lateral wall of this casing, pumping device includes the bush and forms the screw rod in sealed chamber with this bush inner wall, is equipped with the wet return that is linked together with the outlet pipe in the upper end of this bush, is equipped with the water inlet of water tank waste water at the lower extreme of this bush, the impeller with be connected with the drive shaft between the upper end of screw rod. The utility model discloses the kinetic energy that utilizes the running water has driven the rotation of impeller, and the impeller passes through the rotation that the drive shaft had driven the screw rod, has realized the extraction ability to water tank waste water, waste water mixture in the outlet pipe of running water that the draw up comes to store waste water in the cold water storage cistern and use, realized the zero release of waste water, in addition, and do not adopt the charge pump, promote waste water, have energy -conserving characteristics.