| 摘要 |
PROBLEM TO BE SOLVED: To provide a single-direction resetting solenoid valve which is fitted to a gas inlet of a gas meter and needs not change a structure of the gas meter. SOLUTION: This single-direction resetting solenoid valve comprises a body part 101, a first O-ring 112, a manual open unit, and an electric-controlled block unit. The body part comprises a first outlet 101a connected to a gas meter, a second outlet 101b connected to a gas hose, and a communication part communicated with the first and second outlets. The first O-ring is fitted to the communication part. The manual open unit is used to move a first valve plate 102 for blocking ahead to a first distance via the communication part. The electric- controlled block unit has the first valve plate used to cover the first O-ring after receiving a blocking signal and block the communication part to form an airtight seal, and moves the first valve plate ahead to a second distance after receiving an open signal. When the first valve plate is simultaneously moved to the first and second distances, the first and second outlets are completely communicated with each other. COPYRIGHT: (C)2004,JPO
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