Mechanically lockable sterile regulating valve

The utility model relates to a sterile regulating valve capable of being mechanically locked, which is characterized in that a valve core comprises a valve core block and a corrugated sleeve, one end of a valve rod is arranged in the corrugated sleeve and is detachably connected and fixed with the valve core block, the periphery of the corrugated sleeve is closed and is provided with an opening to form a jar shape, and the valve core block is arranged at the bottom of the corrugated sleeve and is connected with the corrugated sleeve into a whole. The corrugated sleeve can contract or stretch along with ascending or descending of the valve core block driven by the valve rod, and the opening end of the corrugated sleeve is fixed between the valve body and the valve cover so that the valve body and the valve cover can be in sealed connection. The utility model has the beneficial effects that the cross section of the corrugated sleeve is corrugated to solve the problem of insufficient elasticity of polytetrafluor