Safe automatic exhaust device for main transformer gas relay

The invention discloses a safe automatic exhaust device for a main transformer gas relay, which comprises an oil storage tank and a gas relay, an oil filling mechanism is arranged in the oil storage tank, the oil filling mechanism fills oil into the gas relay through an oil inlet pipe, and the side edge of the gas relay is communicated with an oil outlet pipe for discharging oil into the oil storage tank. An air exhaust mechanism is mounted at the top of the oil storage tank and comprises a straight pipe, a mounting plate, a first one-way valve mechanism, a second one-way valve mechanism, a second piston, a swing rod, a rotating shaft, a rotating disc and a fixing shaft, and the straight pipe is connected with the oil storage tank through the second one-way valve mechanism. According to the invention, the operation is very simple, no electricity is introduced in the whole process, and the whole process is manually operated, so that the operation is very safe, the potential safety hazard is reduced, meanwhile,