Non-repeat filling cyliner valve for pressure container

The utility model relates to a non-repeat filling bottle valve for a pressure container and comprises a valve body and a valve rod which is arranged in the valve body and shifts a valve core, wherein the valve rod is matched with the valve body through a screw thread. A sealing component is arranged between the valve rod and the valve body, and a valve core component is arranged between a liquid inlet and a liquid outlet. The valve core component comprises the valve core, a supporting component and an elastic sealing component, wherein the valve core has the spherical shape. The lower part of the valve core is provided with the supporting component, and the supporting component is provided with a hole with an inner diameter which is slightly smaller than the diameter of the valve core. A through hole for the passing process of medium is arranged on the outer edge of the hole, and the lower part of the supporting component is provided with the elastic sealing component. The elastic sealing component is also provided with a hole for the passing process of the medium, and the shape of the elastic sealing component is matched with the shape of the valve core. The non-repeat filling bottle valve for a pressure container has the advantage of simple structure and can effectively and reliably prevent the non-repeat filling process.