Novel elevator protective door inner side mounting device

The utility model discloses a novel elevator protective door inner side mounting device, and belongs to the technical field of elevator protective door mounting. The fixing device comprises fixing assemblies, the fixing assemblies are arranged at the four top corners of the elevator protective door, each fixing assembly comprises a first fixing piece and a second fixing piece, the second fixing pieces are inserted into square pipes on the upper portion or the lower portion of the elevator protective door, one side of each first fixing piece is connected with the corresponding second fixing piece, and the other side of each first fixing piece is installed on a wall of an elevator hole. The first fixing piece comprises a long L-shaped folded plate and a short L-shaped folded plate. The protection device is simple in structure, low in manufacturing cost and good in protection effect; the elevator shaft protective door can ensure that the periphery of an elevator shaft is painted and the floor is formed through o