Device for maintaining stable oil supply during low-liquid-level uphill and downhill in oil tank

The invention discloses a device for maintaining stable oil supply during low-liquid-level uphill and downhill in an oil tank, which comprises the oil tank and a reversing valve, the reversing valve is arranged in the oil tank, and an oil delivery pipe connected with an engine is arranged on the reversing valve; the reversing valve is provided with two oil inlet pipes communicated with the oil conveying pipe, and a rotatable adjusting valve is arranged between the two oil inlet pipes. When the vehicle body is in an uphill or downhill state, the adjusting valve is used for enabling the oil conveying pipe to be communicated with the oil inlet pipe only making contact with oil. Through the control of the mechanical reversing valve capable of automatically switching the fuel supply path according to the vehicle body angle, the problem that fuel supply is insufficient when the truck goes uphill and downhill is thoroughly solved, it is ensured that the fuel liquid level of the truck in the fuel tank is low, fuel su