Self-operated gas flame-out protector

The utility model relates to a self-operated gas flameout protector which is composed of a temperature sensing head, a control valve and a manual switch, wherein the temperature sensing head is arranged near a burner port of a gas device; the control valve is connected in series to a gas pipeline of the gas device; the temperature sensing head is composed of a fixed seat of the temperature sensing head and a memory alloy; one end of the memory alloy is fixedly provided with a steel connecting wire or a connecting rod; the other end of the steel connecting wire or the connecting rod is fixed on the control valve. The utility model having the scheme can monitor independently and intelligently under the condition of no electric force or external force; the gas leakage is prevented; the original design structure is not changed. The utility model has the advantages of long service life and low cost.