A gas pipeline switch safety protection device
A technology of safety protection device and gas pipeline, applied in the direction of safety valve, valve device, engine components, etc., can solve the problems of lack of self-protection function, poisoning, fire, etc.
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[0016] The present invention is realized in this way: the gas detector 1 detects the gas content in the air near the gas pipeline. When the existing gas pipeline switch knob 8 is pressed down and turned counterclockwise, the gas pipeline is in an open state. There is a conductive piece 11 on the knob 8. When the conductive piece 11 is in contact with the current input reed 10 and the current output reed 9, the power supply 5 starts to provide power to the controller 3 and the gas detector 1. When the gas pipeline switch knob 8. When the reed 9 and the reed 10 are connected, if there is no leakage in the gas pipeline, the gas detector 1 cannot detect the gas near the gas pipeline, so the controller 3 controls the electromagnetic switch 4 not to be connected, and the circuit of the motor 6 is in the off state. open state.
[0017] If gas leakage occurs near the gas pipeline after the gas pipeline switch knob 8 is turned on, since all circuits have been connected at this time, th...
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