Control method of stepwise and stepless linear adjustment of gas oven and its gas valve

A gas oven comprising:

• a gas oven body, wherein a first side of the gas oven body is provided with a gas tank, a port of the gas tank is fixedly connected with a gas pipe;
• a gas valve body provided on an end of the gas pipe, a top of the gas valve body is fixedly connected with a fixed plate, a surface of the fixed plate is provided with a positioning slot, a sliding plate is slidably connected to an inner wall of the positioning slot, each of two opposing sides of the sliding plate is provided with a limited hole, a top of the sliding plate is fixedly connected with a mounting plate, a top of the mounting plate is fixedly connected with a stepping motor, the top of the gas valve body is fixedly connected with a fixed block, a top of the fixed block is provided with a fixed groove, an inner wall of the fixed groove is fixedly connected with a fixed rod, a spring is sleeved on a surface of the fixed rod, a sliding sleeve is slidably connected to the surface of the fixed rod, a top of the sliding sleeve is fixedly connected with a connecting plate, one side of the connecting plate is fixedly connected with an engaged rod, an end of the engaged rod is engaged with an inner wall of the limited hole, each of both ends of the gas valve body is fixedly connected with a respective first connecting block, an end surface of the first connecting block is provided with a sealing groove, an inner wall of the sealing groove is provided with a sealing gasket, a sealing plate is slidably connected to the inner wall of the sealing groove, one side of the sealing plate is fixedly connected with a second connecting block, one side of the second connecting block is fixedly connected with a connecting pipe, an end of the connecting pipe is fixedly connected with a bottom of the gas oven body, a fixed screw penetrates through an inside of the first connecting block and the second connecting block, a surface of the fixed screw is in a threaded connection with a fixed nut;
• a control box fixedly connected with a second side of the gas oven body, an inner wall of the control box is provided with a controller, an inner bottom wall of the control box is fixedly connected with a memory, an inner side wall of the control box is fixedly connected with a communication module;
• and
• a temperature sensor is installed on an inner side wall of the gas oven body, and the temperature sensor is a pt100 temperature sensor.