THREE-DIMENSIONAL PLASTIC RHOMBIC UNIT OF CONSTRUCTION TOY

摘要

A three-dimensional plastic rhombic unit (1000) of a construction toy includes two insertion-connection sleeves (100), each of which comprises a shell (101) and an insertion-connection groove (130) formed in each shell (101). The bottom surface of each shell (101) is provided with an opening. Both the shell (101) and the insertion-connection groove (130) have a smaller upper part and a larger lower part. The bottom edges of the shells (101) of the two insertion-connection sleeves (100) are connected with each other. The openings of the two insertion-connection grooves (130) are on either side of the connected edge. Several three-dimensional plastic rhombic units (1000) can be inserted one into the other to form any pattern.