Submersible pump

The utility model provides a submersible pump, and relates to the technical field of motor electric pumps. The submersible pump comprises a first shell, a second shell and a connecting mechanism used for connecting the first shell and the second shell. The first housing is provided with a slot, and the inner wall of the slot is provided with a pin hole. The second shell is provided with an inserting part matched with the inserting groove, and the inserting part is provided with a first channel and a second channel. The connecting mechanism comprises a limiting pin, a fixing plate, a movable plug and a tension spring. The limiting pin is matched with the pin hole and connected with the first channel in an inserted mode. And the fixed plate is fixed in the second channel. The movable plug is arranged in the second channel in a sliding fit mode and located below the fixing plate. And one end of the tension spring is connected with the movable plug and the other end is connected with the fixed plate. The movable