Metering tank with external metering pump

The utility model relates to an external metering pump type metering tank, which is characterized in that a support is arranged on the outer circumference of the metering tank, supporting lugs which are uniformly distributed on the circumference are arranged on the outer circumference of the metering tank, an electronic weighing scale is arranged on the upper surface of the support, and three sensing supporting legs of the electronic weighing scale are supported on the bottom surfaces of the supporting lugs; a metering pump is connected to the side end of the support, and a material containing cavity in the bottom of the metering pump is communicated with an inner cavity of the metering tank through a thick corrugated pipe. According to the external metering pump type metering tank, the metering pump is connected with the metering tank through the corrugated pipe structure, and materials in the metering tank are directly metered through the electronic scale, so that data are provided for smooth production at