| 摘要 |
A gas filling valve including an inner connector having a first threaded portion at a lower end and a second threaded portion at an intermediate portion which is larger than the first threaded portion in diameter, a relief valve having a tubular casing having a smaller opening at a lower end thereby forming a shoulder at an inner wall thereof, a spring disposed on the shoulder, a washer arranged on the spring, and a rubber ring mounted on the washer, a check valve arranged within the tubular casing of the relief valve, an inner tubular member having an upper end engaged with a lower end of the check valve, an outer tubular member having an upper end engaged with a lower end of the tubular casing of the relief valve, and an outer connector having a flange formed with a plurality of holes and external threads adapted to engage with a lower end of the outer tubular member, whereby the gas will be discharged immediately out of the vehicle in case of over-pressure thereby ensuring the safety of the driver. |
