Strong rubber adhesion force eccentric plug valve plug

The invention discloses a strong rubber adhesion force eccentric plug valve plug. The strong rubber adhesion force eccentric plug valve plug comprises a valve clack body which is prepared through a metal material and is of an arch structure, and a valve shaft located at the upper end and the lower end of the valve clack body and is characterized in that a T groove which is in criss-cross is formedin the valve clack body, the position, with the T groove in the criss-cross, of the valve clack body is coated with a rubber coating layer, the rubber coating layer extends into the T groove, the precise calculation method is provided for design of the rubber coating layer, the thickness of essential coated rubber can be conveniently and accurately determined, and seal reliability is ensured. 种强橡胶附着力偏心旋塞阀阀塞，它包括采用金属材料制备而成的弓形结构的阀瓣本体、位于阀瓣本体上下端的阀轴，其特征在于：所述阀瓣本体上开设有纵横交错的T型槽，在开设有纵横交错的T型槽的阀瓣本体上包覆有橡胶包裹层，且所述橡胶包裹层延伸至T型槽内；对于橡胶包裹层的设计提供了种精确的计算方法，能方便准确的确定必要包覆橡胶的厚度，确保密封的可靠性。