Freeze-drying bracket device for freeze dryer

The utility model discloses a freeze-drying bracket device for a freeze dryer, and relates to the technical field of freeze dryers, the freeze-drying bracket device comprises a bottom frame and a top frame which are arranged at an interval, the bottom frame and the top frame are connected through vertical columns arranged at four top corners, and through holes penetrating in the left-right direction are formed in the vertical columns. A plurality of supporting plates are arranged between the bottom frame and the top frame, each supporting plate comprises a bottom plate, side plates arranged on the two sides of the bottom plate and a baffle arranged on the rear side of the bottom plate, screw rods of bolts sequentially penetrate through the side plates and the corresponding through holes from inside to outside, and nuts in threaded connection with the screw rods are arranged at the outer ends of the screw rods of the bolts. The supporting plates are detachably connected with the corresponding vertical columns