Connecting structure of pump shell and machine shell of self-priming pump

• Main Authors: XIE YUNJING, XIE SHENLIAN
• Format: Patent
• Language: Chinese; English
• Published: 06.12.2022
• Subjects: BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT PUMPS; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; WEAPONS

The utility model provides a connecting structure of a pump shell and a machine shell of a self-priming pump, and belongs to the technical field of water pumps. A pump shell comprises a front pump shell and a rear cover plate which are fixedly connected, a pump cavity is formed between the front pump shell and the rear cover plate, an inlet and an outlet which are communicated with the pump cavity are formed in the front pump shell, a machine shell comprises a front end cover, a connecting structure comprises a connecting pipe which is integrally formed on the rear side of the rear cover plate, and the connecting pipe is communicated with the pump cavity. The at least two connecting pipes are uniformly distributed around the central line of the central hole; inner threaded pipes are formed on the front end cover, the number of the inner threaded pipes is the same as that of the connecting pipes, and the front end faces of the inner threaded pipes are tightly pressed on the rear end faces of the corresponding