Gas electromagnetic valve powered by low-voltage battery

The invention relates to a gas electromagnetic valve powered by a low-voltage battery. A valve body of the gas electromagnetic valve is provided with an air inlet and an air outlet. A valve port is arranged between the air inlet and the air outlet. A base is fixed to the valve body and internally provided with a main control board. The main control board is provided with a wireless receiving and transmitting module which is in signal connection with a gas alarm device. An electromagnet assembly is further arranged in the base and comprises a magnet iron core, a movable iron core and a coil. Anelectric loop is formed by the coil and the low-voltage battery in the base. The part, on the periphery of the movable iron core, below the coil is provided with a permanent magnet. A seal ring is fixed between the valve body and the base. A seal pad is fixed to the lower end of the movable iron core, penetrates through the seal ring and is matched with the valve port. A spring is arranged between the seal pad and the se