Underground sealing plate of hydraulic support pushing frame

The utility model relates to a hydraulic support pushing frame underground sealing plate which comprises a bottom sealing plate body and a pushing frame, the pushing frame is located on the inner surface of the upper end of the bottom sealing plate body, a through groove is formed in the center of the bottom sealing plate body, and supporting legs are arranged at the lower end of the bottom sealing plate body. A first lead screw and a second lead screw are arranged between the supporting legs, sliding plates are arranged at the outer ends of the first lead screw and the second lead screw, a first belt and a second belt are arranged at the front ends of the first lead screw and the second lead screw, rotating rods are arranged at the upper ends of the first belt and the second belt, and rotating bases are arranged at the rear ends of the rotating rods. A motor is arranged at the front end of the rotating rod, and a fixing base is arranged at the upper end of the motor. The motor is used for driving the first b