Drip metering device

The utility model relates to a drip metering device, belonging to the field of water metering appliance. The utility model is mainly used to solve the problem of metering dropping water. This problem can not be realized singly by a common mechanical measuring water meter. The utility model is arranged at the water inlet end of the common mechanical measuring water meter. The utility model has the basic structure of the common check valve. The utility model is characterized in that a control board (7) is arranged on a valve plate (5). A pressing spring (8) is arranged on the top surface of the valve plate (5) and the pressing spring (8) is contacted with a roof board (2). A control mechanism is arranged in the cavity of the valve body (1) and matched with the control board (7). The utility model also comprises a control rod (9) which is hinged with the valve body (1) by a small shaft (10) and a corresponding operating rod spring (11). The control rod (9) and the control board (7) can be mutually locked together or mutually released by a corresponding left contact head (13) and a corresponding right contact head (14). The benefits of the utility model is that the utility model can reliably and accurately realize the measurement of the dropping water and avoid the economic loss of the water supply units. The utility model is also favorable to save water resource and energy resource. Meanwhile, the utility model is simple in structure, scientific, reliable, easy in enforcement, long in service life, easy in maintenance and low in cost.