Water pump with novel sealing structure

The utility model provides a water pump with a novel sealing structure, and belongs to the technical field of fluid machinery. The water pump comprises a shell, a power source, a pump shaft, an impeller, a supporting seat, the sealing structure and a sealing cover. Wherein the power source is arranged on the shell and is provided with a driving shaft; and the pump shaft is in power connection with the driving shaft. And the impeller is arranged on the pump shaft. And a supporting seat is arranged on the periphery of the pump shaft between the power source and the impeller so as to support the pump shaft. The sealing structure is arranged on one side of the supporting base along the periphery of the pump shaft. The sealing cover is mounted on the supporting seat and on the same side as the sealing structure; the sealing cover covers the periphery of the sealing structure so as to surround the periphery of the sealing structure to form a cavity; lubricating liquid is contained in the cavity. According to the te