The utility model discloses a double-channel
impeller flowmeter, which relates to the technical field of agricultural flowmeters, and comprises two channel cavities, each channel cavity comprises an upper cover and a lower shell which are in threaded connection, an
impeller is arranged in each channel cavity, a hole for a
whole body shaft to pass through is arranged in each
impeller, the upper cover is provided with an upper shaft groove, and the lower cover is provided with a lower shaft groove. The upper shell is provided with an upper shaft groove, the lower shell is provided with a lower shaft groove, the full-body shaft is inserted into the upper shaft groove and the lower shaft groove in a matched mode, a
plastic magnet is fixed to the axial extending portion of the impeller, and the
plastic magnet is correspondingly provided with a Hall device. According to the double-channel impeller flow meter, the upper cover and the lower cover are spirally and quickly detached, so that the impeller is convenient to clean and replace, the
whole body shaft is designed in a penetrating mode, liquid
medicine impurities are not prone to being accumulated, the double-channel impeller flow meter is more stable and durable, the double-channel impeller structure is convenient to calibrate, and user experience is improved.