Lubricating and oil feeding device for civil air defense door transmission lead screw

The utility model relates to the technical field of civil air defense doors, in particular to a lubricating oil feeding device of a civil air defense door transmission lead screw. The lead screw lubricating oil supply assembly comprises a lead screw, an outer sleeve, an inner cavity, a gap filling plate, a lubricating oil temporary storage frame and a conveying pipe, the lead screw is sleeved with the outer sleeve in a threaded connection mode, the inner cavity is formed in the middle of the interior of the outer sleeve, and the gap filling plate is arranged on the lower side of the interior of the inner cavity; the lubricating oil temporary storage frame is fixed to the middle position of the outer side of the outer sleeve, lubricating oil can enter an inner cavity formed in the outer sleeve through a conveying pipe, at the moment, the lubricating oil can be immersed into threads of the lead screw by means of a gap filling plate, and then in the rotating process of the lead screw, the threaded connection pos