| 摘要 |
A gas spray valve permits easy recharging of gas containers after use. The gas spray valve is of considerable strength and rigidity and can be manufactured in a less costly manner. One of the openings of a gas conduit of a valve pin is positioned so that, when the pin is in the raised position, the opening is positioned above a second seal ring and, when the valve pin is pushed into a first and second stop position, the opening is positioned below the second seal ring. A gas supply passage is provided that connects the interior of a gas container with a metering chamber on the inside of a first seal ring only when the valve pin is in the raised position. When the valve pin is pushed into a second stop position, the portion with the smaller diameter of the valve pin is pushed down below the first seal ring so that the interior of the gas container communicates with the metering chamber and the gas conduit. This permits recharging of the gas container with the gas.
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