| 摘要 |
A gas insulated switchgear comprises a switch member, a valve assembly installed in the switch member and a revolving button assembly mounted at an end of the switch member for driving the valve assembly moving. The switch member has a valve chamber, a gas chamber communicated with the a valve chamber and an inlet communicated with the gas chamber, wherein the valve chamber has a tapered shape in a cross-section along an elongated axis and the valve assembly has a shape relative to the valve chamber to be received therein. The valve assembly has a larger end and a smaller end, wherein the larger end faces the gas chamber. Gas is inputted via the inlet and stored in the gas chamber to press the larger end of the valve so that the valve assembly is squeezed in the valve chamber for anti-leakage.
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