Impeller and aerator with impeller

Abstract

The invention relates to an impeller which comprises a tapered body, a plurality of blades and a fixing seat. The impeller is formed by one-time injection moulding, the fixing seat is positioned in the tapered body, connecting holes matched with a flange of an output shaft of an aerator are formed in the fixing seat, the blades are arranged on the outer side of the tapered body and are obliquely combined with the tapered body, thrashing plates basically vertical to the upper end face of the tapered body are arranged at the upper end of the outer side of the tapered body, and smooth transition is realized between working faces C of the thrashing plates and working faces A of the blades. Water flow driven by the blades splashes upwards through the working faces C of the thrashing plates to enable water splash to rise and enable a water body to disperse, so that contact surface with the air is increased to improve aeration effect. The weight of an alloy-aluminum pressure-casted speed reducing box is greatly reduced, and a small-size flat floating ball can be arranged at the other end of a supporting end to enable the aerator to keep afloat, so that a flat surface is enable to be relatively parallel to the water flow direction during working of the aerator, resistance of a floating body on the water flow during working of the aerator is reduced, and aeration efficiency is improved.

Description

technical field [0001] The invention relates to an aerator, in particular to an impeller and an aerator with the impeller, belonging to fish farming machinery. Background technique [0002] The aerator is a life-saving and stimulating equipment for fish and shrimp in aquaculture. Existing mechanical aerators mainly include three types: water wheel type, impeller type and water spray type, among which the impeller type aerator is the most widely used. The impeller of the impeller type aerator has metal welded impeller and plastic impeller. Most of the plastic impellers are assembled, and there are also integral injection molded impellers. There are multiple blades on the outside of the cone. The blades and the cone are combined obliquely. The end face is of the same height, and the water flow spreads around when working, and the water splash is not high enough to affect the oxygenation effect. Contents of the invention [0003] The purpose of the present invention is to o...

AI Technical Summary

Problems solved by technology

The impeller of the impeller type aerator has metal welded impeller and plastic impeller. Most of the plastic impellers are assembled, and there are also integral injection molded impellers. There are multiple blades on the outside of the cone. The blades and the cone are combined obliquely. The end face is of the same height, the water flow spreads around when working, and the water splash is not high enough to affect the oxygenation effect

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