Limiting device and three-dimensional warehousing system adopting limiting device

The utility model discloses a limiting device which comprises a limiting mechanism arranged on a goods shelf and comprising a swing frame, a swing check block, a sliding seat, a push rod and a connecting rod. The swing frame and the sliding seat are both fixed on the goods shelf; the hinged end of the swing check block is hinged to the swing frame, the swing check block rotates in the vertical plane, when the swing check block is located at the first limiting position, goods on the goods shelf are limited, and when the swing check block is located at the first unlocking position, limiting of the goods is released; the push rod is connected with the sliding seat in a sliding mode, the driving end of the push rod is movably connected with the middle of the swing check block through the connecting rod, when the push rod is located at the second limiting position, the swing check block is located at the first limiting position, and when the push rod is located at the second unlocking position, the swing check blo