Vertical semi submersible sump pump without transmission shaft

A vertical semi submersible sump pump without transmission shaft. It solves the problem of easy damage and low reliability of rubber bearings or rolling bearings in current YW type vertical semi submersible sump pumps, JC type long shaft deep well pumps, and LC type suspended semi submersible vertical turbine pumps; The QJ submersible pump, QW submersible sewage pump, and ZQJ submersible slurry pump are equipped with submersible motors that require frequent maintenance. A vertical semi submersible sump pump without transmission shaft is provided, which has the advantages of smooth operation, low noise, long trouble free operation time, easy replacement of vulnerable parts, high efficiency, energy saving and environmental protection. It adopts a combination seal and is suitable for pumping clean water, sewage, and media with hard solid particles. Its structure is as follows: it includes a pump housing, with the upper end of the pump housing connected to a connecting pipe device. The connecting pipe device is equipped with a motor device connected to the upper part of the pump housing. The lower end of the pump housing is connected to the suction pipe through a pressure chamber. The side of the pump housing is a discharge pipe. The motor shaft of the motor device penetrates the pump housing, and the lower end of the motor shaft is equipped with an impeller device. There is a sealing device between the motor and the pump housing.

Technical requirements: A vertical semi submersible sump pump without a transmission shaft, comprising a pump casing, an upper end of the pump casing connected to a connecting pipe device, a motor device connected to the upper part of the pump casing in the connecting pipe device, a lower end of the pump casing connected to the suction pipe through a pressure chamber, and a discharge pipe on the side of the pump casing. The feature is that the motor shaft of the motor device penetrates the pump casing, and the lower end of the motor shaft is provided with an impeller device. A sealing device is provided between the motor and the pump casing.