The present invention relates to lubricating oil lubricated in a sump from a sump to a stove.;According to this paper, this device is installed in the oil sump so that oil can be easily injected into the stove and there are no oil spills. In this case, when filling oil into the stove, do not open the lid of the sump of oil tank, but insert the oil tank corrugated pipe into the stove gas tank first and open the sump of oil tank. The device 4 and the air inlet 5 are opened at the same time in one operation, so that the air enters through the air inlet 5 without intentionally opening the lid and injecting the air. It is a device designed to hold and refuel easily.
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