Precise flow meter

The invention is a precision measuring flowmeter, mainly measuring water or other liquid flux precisely. It is mainly composed of single-way valve, meter, vane, etc. concretely speaking, a variable speed meter is connected with two vanes in the casing, there is a channel B set at one vane, there are runners C and an on two sides of the other vane, respectively, and there is a measuring single-way valve installed in the bottom of the flowmeter. Its main advantages: simple structure, accurate measurement, and especially be able to make trace and drop measurement, and be widely applied to the fields in need of trace and precision measurement. 本发明属工业机械制造业方面的计量装置，主要用于水或其它液体流量的精密计量。它主要由单向阀、计量表与叶轮几大部件组成。其具体是由壳体(2)内安装的变速计量表(1)与叶轮(8)、叶轮(7)连接，在叶轮(8)处设制B通道(3)，在叶轮(7)两侧分别设制C流道(6)与A流道(5)，在该流量表的下方安装计量单向阀(4)构成。其主要优点是结构简单、计量精确，尤其能计量微量、点滴状的计量，可广泛用于需要微量精密计量的领域。