Oil bag type oil-immersed submersible deep-well pump which is additionally provided with independent mechanical seal chamber and oil cavity oil pressure balance bag device

The utility model relates to the field of submersible pumps and submersible motor equipment. The oil bag type oil-immersed submersible deep-well pump is additionally provided with an independent mechanical seal chamber and an oil cavity oil pressure balance bag device. The motor comprises a motor outer shell, a motor stator, a motor rotor, a motor shaft, a motor bearing, a water pump connecting assembly, a mechanical seal chamber, a mechanical seal chamber cover, an oil pressure balance bag and a double-sided mechanical seal, wherein the motor stator is arranged in the motor outer shell and isconnected with the motor outer shell, the motor rotor is arranged on the motor shaft and is fixedly connected with the motor shaft, and the oil bag type oil-immersed submersible motor or pump (deep-well pump) is convenient to operate and use, and meets the higher requirements of people on the service life and the safety of the oil bag type oil-immersed submersible motor or pump (deep-well pump). 本实用新型涉及潜水泵及潜水电机设备领域，尤其是涉及