Novel oil seal type plug valve

The utility model discloses a novel oil seal type plug valve, which relates to the technical field of oil seal type plug valves and comprises a knob, a support rod penetrates through the inside of the knob, a grease injection pipe is mounted on the inner wall of the support rod, and a sampling pipe is connected to the inner wall of the grease injection pipe. Liquid is injected through a liquid inlet pipe connecting pipeline, the bottom of the valve body is connected with a rotating block through a fixing block and a retaining ring, a worker rotates a rotary knob to drive the valve body to rotate, rotating resistance is reduced, the rotating speed is increased, and the worker can conveniently detach and maintain the valve body. The situation that residual liquid in the transverse pipe and the vertical pipe rotates, so that lubricating liquid between the valve body and the plug body is scoured, and the quality of circulating liquid in a pipeline is affected can be effectively avoided, the vertical pipe is commu