Submersible pump with good sealing effect

The utility model discloses a submersible pump with a good sealing effect. The submersible pump comprises a rotating shaft, a bearing seat, a double-end-face mechanical sealing piece, a mechanical sealing seat, a framework oil sealing piece, a rotating disc and an impeller. The rotating shaft is fixedly mounted by being inserted into the bearing seat; a groove is formed in the bearing seat, and the upper end of the double-end-face mechanical sealing piece is connected with the groove of the bearing seat. The mechanical sealing seat is provided with an upper groove and a lower groove, and the lower end of the double-end-face mechanical sealing piece is connected with the upper groove of the mechanical sealing seat. The framework oil sealing piece is arranged on the outer side of the rotating shaft in a sleeving mode and fixedly connected with the lower groove of the mechanical sealing seat. The mechanical sealing seat is connected with the bearing seat; the rotating disc is positioned above the impeller and be