Patent attributes
A construction block unit includes a construction block including a bottom plate having a rectangular shape, sidewalls attached to each side of the bottom plate via hinges, wherein the sidewalls rotate on the hinges from a position planar with the bottom plate for storage to a position perpendicular to the bottom plate to form a receptacle configured to receive and contain a weight, and a pair of interlocking portions, each at opposite sides of the construction block to fasten the sidewalls in the position perpendicular to the bottom plate. Each of the pair of interlocking portions is shaped to receive a corresponding interlocking portion of a second construction block by vertically sliding the corresponding interlocking portion into the interlocking portion.
