Metallic seal eccentric valve structure for pipeline

The utility model discloses a metallic seal eccentric valve structure for a pipeline. The metallic seal eccentric valve structure comprises a valve body, a valve seat, a valve ball and a valve rod. The valve seat is fixedly connected in the valve body and is provided with an inclined sealing face. The valve rod extends into the valve body and is fixedly connected with the valve ball located in the valve body. The valve ball is provided with an axial face on which a sealing pair is arranged. The sealing pair comprises a sealing piece and a fixing ring. The sealing piece is fixedly connected with the axial face through the fixing ring and is provided with a taper face matched with the inclined sealing face. The inclined sealing face and the taper face are both curved surfaces with oval sections. A supporting plate is arranged at the bottom of the valve ball, supports the valve ball and ensures that the rotating center of the valve ball and the central line of a runner of the valve body form a radial height diff