US Patent 11109674 Side plate fixture of rack for building block containers

A side plate fixture includes a plurality of sides plates and a plurality of screw members. Each of the sides plates has a plate body which has a first end provided with a projection and a second end provided with a recess. The projection is provided with a slot and a plurality of through holes. The recess is provided with an insertion piece and a plurality of screw holes. The sides plates are arranged linearly. When two adjacent sides plates are assembled, the projection is inserted into the recess, the insertion piece is inserted into the slot, and the through holes correspond to the screw holes. The screw members extend through the through holes and are screwed into the screw holes, to connect and secure any two adjacent sides plates.