Pump for smashing sewages

Abstract

The invention relates to a pump for smashing sewages, comprising a transmission shaft, a smasher and pump body. A long sleeve is arranged outside the transmission shaft. A connection base connected with a motor is fixed at the top of the long sleeve, and an upper cover connected with the pump body is fixed at the bottom of the long sleeve. The smasher comprises an impeller connected with the lower end of the transmission shaft through a shaft sleeve, the impeller is provided with a plurality of approximately evolvent-shaped circular arc-shaped vanes. Blades are arranged at the end of the lower end of the vanes. The bottom of the pump body is provided with a bottom cover, and the bottom cover is provided with a water inlet. The pump for smashing sewages is characterized in that blades are arranged at the upper end of the vanes. The smasher further comprises an inner plate fixed at the bottom of the upper cover and sleeved on the impeller. Circular arc-shaped upper cutters corresponding to the vanes are arranged on the inner plate. Circular arc-shaped lower cutters corresponding to the vanes are arranged at the water inlet at the upper edge of the bottom cover. The invention has strong smashing strength for sewages, and high efficiency of discharging sewages; in addition, the phenomena that sewages slip and are piled up at the cutting position, and the like are avoided.

Description

technical field [0001] The invention relates to a pump, in particular to a sewage crushing pump. Background technique [0002] Most of the existing sewage submerged pumps are equipped with a dirt chopping device. These dirt chopping devices rely on the shear force generated between the cutter at the bottom of the blade and the bottom plate to cut the dirt. The crushing of the waste is relatively slow, while the output of the waste is fast, so that the insufficient crushing of the waste will easily cause the blockage of the pump body, and the waste will easily slip and accumulate at the shearing point, which will affect the discharge of sewage. Contents of the invention [0003] The object of the present invention is to provide a sewage crushing pump with high sewage discharge efficiency and strong crushing capacity. [0004] The technical scheme adopted in the present invention is: [0005] The sewage crushing pump includes a transmission shaft, a crushing device and a p...

AI Technical Summary

Problems solved by technology

[0002] Most of the existing sewage submerged pumps are equipped with a dirt chopping device. These dirt chopping devices rely on the shear force generated between the cutter at the bottom of the blade and the bottom plate to cut the dirt. The crushing of the waste is relatively slow, while the output of the sewage is fast, so the insufficient crushing of the sewage will easily cause the blockage of the pump body, and the sewage will easily slip and accumulate at the shearing place, which will affect the discharge of sewage.

Images