Quick-switching blind plate valve

The invention provides a quick-switching blind plate valve, and relates to the technical field of blind plate valves. The quick-cut blind plate valve comprises a first flange connector, one side of the first flange connector is fixedly connected with a first fixing plate, the first fixing plate is fixedly connected with a blind plate pushing mechanism, each corner of the first fixing plate is provided with a threaded rod, the outer walls of the multiple threaded rods are slidably connected with supporting sleeves, and the supporting sleeves are fixedly connected with the blind plate pushing mechanism. Fixing nuts are spirally connected to the two ends of the multiple threaded rods, a second fixing plate is arranged between the ends, away from the first fixing plate, of the multiple threaded rods, and a manual driving mechanism is fixedly connected to the top of the side, close to the blind plate pushing mechanism, of the second fixing plate. By designing a transmission worm and a transmission gear in the blin