Safty automatic control device for gas pipe

The utility model relates to a safety automatic control device for fuel gas pipelines, particularly a fuel gas control device which has the technical characteristics of simple structure, visual and convenient use and high dependability. The utility model comprises a shell, a timer, a control component and a valve component, wherein the upper part of the shell is provided with a top lid which can drive the timer; the control component comprises a cam, a shifting fork and a pressure lever, the cam of which the side brim is provided with a groove is connected with the timer and the shifting fork is matched with the cam; the valve component comprises a sealing ring arranged on the lower part of the pressure lever and a switch valve shaft connected with the sealing ring; a sealing ring for the switch valve, which is matched with the opening of the switch valve is arranged on the middle part of the switch valve shaft.