Precise and durable rotor flow meter with flange connected with plastic pipe

The utility model discloses a precise and durable rotor flow meter with a flange connected with a plastic pipe, which is characterized in that the rotor flow meter comprises a shell, and the shell is provided with a fluid inlet arranged at the lower end and a fluid outlet arranged at the upper end; a conical cavity communicated with the fluid inlet and the fluid outlet is formed in the shell, and the inner diameter of the conical cavity is gradually increased from bottom to top; a measuring assembly used for measuring flow is arranged in the cavity and comprises a guide rod fixedly arranged in the cavity and a floater capable of moving up and down along the guide rod. The measuring assembly further comprises a shaking structure which is used for enabling the floater to shake in the process that the floater moves up and down along the guide rod. According to the utility model, the shaking structure is arranged, so that the floater shakes in the partial stroke of moving from bottom to top, impurities attached t