Automatic lifting cage curtain door for mine

The utility model provides an automatic lifting cage curtain door for a mine, which comprises a door frame and five groups of door plates, a mounting plate is fixedly arranged in the door frame, the mounting plate and the five groups of door plates are connected through a lifting mechanism, one end of each door plate is fixedly provided with a group of mounting seats, and the other end of each door plate is provided with a mounting seat connected through an elastic component. Rolling wheels are arranged in the mounting seats, sliding rails are arranged on the two sides of the inner wall of the door frame, the rolling wheels at the two ends of each door plate are clamped in the two sliding rails respectively, a limiting assembly is arranged on one side of the door frame, and a buffering assembly is arranged at the bottom of the door frame. The lifting of the cage curtain door can be controlled through the pneumatic push rod, and the two ends of the door plate are positioned by the rollers in the lifting proces