Lubricating oil smearing device of vacuum pump

The utility model relates to the technical field of vacuum pumps, in particular to a vacuum pump lubricating oil smearing device which comprises a vacuum pump body, a front end cover and a bearing. The bearing is arranged at one end of the vacuum pump body, the front end cover is installed at one end of the vacuum pump body, the bearing is located in the front end cover, the bottom of the front end cover is fixedly connected with a miniature oil pump, an outlet of the miniature oil pump communicates with an oil pipe, and the outer wall of the oil pipe annularly communicates with a plurality of branch pipes. The miniature oil pump is connected with a power source, so that the branch pipes add lubricating oil to the bearing portion at the joint of the vacuum pump body and the bearing, the front end cover does not need to be detached to oil the bearing, and the vacuum pump is simple, convenient, fast, time-saving and labor-saving. The timing switch arranged in the front end cover is connected with the alternatin