US Patent 11535423 Storage box and storage rack

The present disclosure provides a storage box, including a bottom, a first side wall, a second side wall, a third side wall and a fourth side wall. The first side wall, the second side wall, the third side wall and the fourth side wall sequentially surround the bottom. The first side wall is parallel to the third side wall, the second side wall is parallel to the fourth side wall, the first side wall is perpendicular to the second side wall, a first notch is disposed on the first side wall, a second notch is disposed on the second side wall, a width of the first notch is larger than or equal to a thickness of the second side wall, a width of the second notch is larger than or equal to a thickness of the first side wall.