Secondary hanging system in static pressure box of clean room

The utility model discloses a secondary hanging system in a clean room static pressure box, and belongs to the technical field of clean room static pressure box installment, the secondary hanging system comprises a static pressure box, two H-shaped steels and two hanging rods, the bottoms of the H-shaped steels are fixedly connected with a U-shaped piece, the U-shaped piece is internally provided with a threaded shaft, the front side of the U-shaped piece is provided with a rotating disc, and the rotating disc is fixedly connected with the bottom of the H-shaped steels. The front end of the threaded shaft penetrates through the front side of the U-shaped piece and is fixedly installed on the rotating disc, and the rear end of the threaded shaft is rotationally connected with the rear side of the U-shaped piece. The threaded shaft can be driven to rotate by rotating the rotary disc, the threaded shaft can drive the two hanging rods to move in the opposite direction or in the opposite direction, so that the dis