Patent ID: 8771032
Filing Date: 2014-07-08
Classification: A63H

Abstract:
1. A block assembly comprising: at least two blocks detachably connected with each other; wherein: each of the blocks includes: the positioning piece of each of the at least two blocks has a periphery provided with at least four positioning faces each of which has a substantially arcuate shape; when the blocks are connected, the connecting knob of a first one of the at least two blocks is inserted into the receiving space of the main body of a second one of the at least two blocks, and is clamped between the positioning piece and at least one of the positioning rails of the second one of the at least two blocks; the connecting knob of the first one of the blocks has a periphery abutting one of the positioning faces of the positioning piece of the second one of the at least two blocks exactly and closely; the connecting knob of each of the at least two blocks has a top face provided with a chamfered portion; each of the positioning rails of each of the at least two blocks has a bottom provided with a chamfered portion; and each of the positioning faces of the positioning piece of each of the at least two blocks has a bottom provided with a chamfered portion.