Sealing base structure for detecting vacuum degree of curtain plate ring

The utility model discloses a sealing base structure for detecting the vacuum degree of a curtain plate ring, and relates to the related technical field of curtain plate ring vacuum degree detection equipment. The curtain plate ring sealing device comprises a base, a mounting groove of a cylindrical structure is formed in the base and used for fixedly mounting a curtain plate ring, and the curtain plate ring sealing device comprises a sealing mechanism which is arranged in the mounting groove and comprises a plurality of sector rings arranged in the side wall of the mounting groove in a sliding mode and a driving mechanism arranged in the base; the driving mechanism comprises a servo motor and a screw rod arranged on an output shaft of the servo motor, and the screw rod is in threaded connection with the sector ring; the sector ring can move towards one side of the curtain plate ring through the driving mechanism, a circular sealing plate can be formed, and an inner ring of the sealing plate can be attached t