Timing household fuel gas safety valve

Abstract

The invention relates to the technical field of pipeline equipment, and discloses a timing household fuel gas safety valve. The timing household fuel gas safety valve comprises a self-closing valve body, wherein a movable magnet is movably connected into the self-closing valve body, a closing plug is movably connected to the movable magnet, and a fixed magnet is assembled below the movable magnet.When a user forgets to close the valve in the process of using fuel gas, due to the fact that the flow of the fuel gas is changed for a long time, the air pressure in a compression tank and a pistoncylinder is gradually increased, the movable magnet moves, the valve is triggered to be closed, and the fuel gas is cut off, so that excessive cooking can be avoided, overflowing water can be prevented from pouring out the fuel gas, fuel gas leakage is avoided, and gas using safety is improved; and then when a gas using end leaks, stable gas flow is formed in a fuel gas pipeline to trigger the valve to be closed, and when the fuel gas using end generates small leakage which is not sensed, the fuel gas can be frequently triggered to be closed, so that not only can the effect of avoiding fuel gas leakage be achieved, but also the effect of gas leakage detection can be achieved.

Description

technical field [0001] The invention relates to the technical field of pipeline equipment, in particular to a timing household gas safety valve. Background technique [0002] see Image 6 , is a common gas safety valve on the market, including a valve body, a setting magnet, a sealing plug and a driving block. When the pressure in the valve body drops, the volume of the expansion bag shrinks, and the magnetic force between the driving block and the setting magnet becomes larger, and the setting magnet Attract the drive block to move, drive the plug to move, and close the gas valve. [0003] Although this type of gas valve is automatically closed when the pressure of the valve body drops after the gas leaks to improve the safety of gas use, if the user forgets to close the gas during normal use, it is easy to extinguish the fire and cause an accident. A gas leak may cause a safety accident. [0004] Secondly, the existing safety valves often need to cooperate with electroni...

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Problems solved by technology

[0003] Although this type of gas valve is automatically closed when the pressure of the valve body drops after the gas leaks to improve the safety of gas use, if the user forgets to close the gas during normal use, it is easy to extinguish the fire and cause an accident. Gas leakage, causing safety accidents

[0004] Secondly, the existing safety valves often need to cooperate with electronic gas leakage detection equipment when detecting gas leakage. After detecting that the gas concentration in the air is too high, the control valve is closed. Automatically closed when streaming, there is a big security risk

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