在点火不成功、意外熄火。燃气用完等情况下，能在0.5秒内自动关闭气阀，并发出声光警告，安全可靠。

In case of lighting failure, flameout and gas using up etc, the mechanism turns off the gas valve in 0.5s automatically with light and sound alarm, safe and reliable.

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此时，电机m停止运转，保险爪因电磁气阀d Q断电关闭气路而落在保险齿条上。

At this time, the motor m stops running, and the insurance jaw falls on the insurance rack for the solenoid valve DQ is power off and closes the air course.

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读者须知：以下的内容，仅供参考。 国外已经有实验证实封闭气室加单向气阀会导致滑翔伞塌陷后不能正常恢复，我同意以上观点。

Preface, the following is just for reference. it has been proved that the closed cell with single way valve will make the paraglider can not recover properly after collapse, don't try it at home.

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