Separate intelligent gas safety device for private residence

The utility model discloses a separate intelligent gas safety device for a private residence. A gas metering device is respectively connected with a gas source and gas equipment through a gas conveying hose and a special quick coupler and is also provided with a casing with input jacks of gas leakage, incomplete burning and fire signals as well as an execution mechanism, an emergency cut-off mechanism, a wireless remote transmission module, an abnormal flow sensor and an earthquake sensor which are arranged in the casing, wherein the emergency cut-off mechanism and the earthquake sensor are respectively connected with the execution mechanism; a miniature gas leakage detector is arranged on the special quick coupler of the gas conveying hose and can be used for detecting the gas leakage in the gas conveying hose in real time; a gas overflow cut-off valve is arranged before the gas equipment and is used for cutting off gas under the condition that the set flow is exceeded; the miniature gas leakage detector and