Speed reducer with lubricating oil storage function

The speed reducer with the lubricating oil storage function comprises a speed reducer body, an oil filling pipe and an oil outlet pipe, and the oil filling pipe is communicated with the speed reducer body and used for supplying lubricating oil into the speed reducer body; the oil outlet pipe is communicated with the speed reducer body and is used for discharging lubricating oil in the speed reducer body; the device further comprises an oil storage tank and an oiling control assembly. By arranging the oil storage tank, the oil storage tank arranged at the oil filling pipe can store a large amount of lubricating oil in advance, when oil needs to be supplied to the speed reducer body, the regulation and control column is adjusted to slide in the direction away from the oil filling pipe relative to the oil storage tank, and the regulation and control column is made to be separated from the oil filling pipe to complete oil supply treatment; and the oil filling pipe can be sealed by adjusting the adjusting and cont