Building blocks and connecting structures thereof

Abstract

Provided is a building block, comprising a building block body which is in a cubic structure and is composed of one first connecting surface provided with projecting portions and first recessed portions, and five second connecting surfaces. Also provided is a connecting structure of building blocks, in which projecting portions of one said building block are inserted into recessed portions of another said building block. Further provided is connecting structure of building blocks comprising a first building block and a second building block connected with the first building block; wherein a first building block body is composed of one third connecting surface and first recessed portions and five fourth connecting surfaces; a second building block body is composed of one fifth connecting surface and five sixth connecting surfaces. The present invention has advantages that different types of building blocks can be connected together and the connection forms are enriched.

What is claimed is: 
     
         1 . A building block, comprising a building block body which is in a cubic structure and is composed of one first connecting surface and five second connecting surfaces,
 wherein the first connecting surface is provided with two projecting portions and two first recessed portions each adapted to a projecting portion provided on a first connecting surface of another such building block; the two projecting portions are disposed on the first connecting surface along a first diagonal line, the two first recessed portions are disposed in the first connecting surface along a second diagonal line, and the first diagonal line and the second diagonal line intersect perpendicularly;   each of the second connecting surfaces is provided with the first recessed portions each adapted to a projecting portion provided on a first connecting surface of another such building block and at least one second recessed portion different from the first recessed portion in shape or size.   
     
     
         2 . The building block of  claim 1 , wherein each of the second connecting surfaces is provided with four said first recessed portions, and every two said first recessed portions are disposed diagonally. 
     
     
         3 . The building block of  claim 2 , wherein the second recessed portion has the size smaller than the first recessed portion. 
     
     
         4 . The building block of  claim 3 , wherein a periphery of each of the first recessed portions is evenly provided with four second recessed portions that are in communication with the each of the first recessed portions. 
     
     
         5 . The building block of  claim 3 , wherein a periphery of each of the projecting portions is evenly provided with four second recessed portions. 
     
     
         6 . The building block of  claim 2 , wherein the second recessed portion has the size larger than the first recessed portion. 
     
     
         7 . The building block of  claim 6 , wherein the second recessed portion is provided in a center of each of the second connecting surfaces, and four said first recessed portions are in communication with said second recessed portion in the each of the second connecting surfaces. 
     
     
         8 . The building block of  claim 6 , wherein one second recessed portion is provided in a center of the first connecting surface, and two first recessed portions are both in communication with the one second recessed portion in the first connecting surface. 
     
     
         9 . The building block of  claim 1 , the projecting portions are in a hollow square columnar structure or in a columnar structure formed by a plurality of sheet-like structures arranged at intervals. 
     
     
         10 . The building block of  claim 1 , wherein the first recessed portions and the second recessed portions are in a blind hole structure or in a through hole structure. 
     
     
         11 . The building block of  claim 1 , wherein centers of the first connecting surface and the second connecting surfaces are respectively provided with a through hole ( 16 ). 
     
     
         12 . A connecting structure of building blocks, comprising a plurality of building blocks of  claim 1 , wherein projecting portions of one said building block are inserted into first recessed portions of another said building block such that the plurality of building blocks are connected together. 
     
     
         13 . A connecting structure of building blocks, comprising at least one first building block and at least one second building block, in which projecting portions of the first building block are inserted into first recessed portions of the second building block; the first building block comprises a first building block body, and the second building block comprises a second building block body; and the first building block body and the second building block body are both in a cubic structure;
 wherein the first building block body is composed of one third connecting surface and five fourth connecting surfaces, the third connecting surface is provided with first projecting portions and third recessed portions each adapted to a first projecting portion provided on a third connecting surface of another first building block body, and each of the fourth connecting surfaces is provided with said third recessed portions each adapted to a first projecting portion provided on a third connecting surface of another first building block body and fourth recessed portions having a size smaller than the third recessed portions; and   the second building block body is composed of one fifth connecting surface and five sixth connecting surfaces, the fifth connecting surface is provided with second projecting portions and fourth recessed portions each adapted to a second projecting portion provided on a fifth connecting surface of another second building block body, and each of the sixth connecting surfaces is provided with said fourth recessed portions each adapted to a second projecting portion provided on a fifth connecting surface of another second building block body and a third recessed portion adapted to a first projecting portion provided in a third connecting surface of the first building block body.   
     
     
         14 . The connecting structure of building blocks of  claim 13 , wherein the third connecting surface is provided with two first projecting portions and two third recessed portions, the two first projecting portions are disposed on the third connecting surface along a third diagonal line, the two third recessed portions are disposed in the third connecting surface along a fourth diagonal line, and the third diagonal line and the fourth diagonal line intersect perpendicularly; and each of the fourth connecting surfaces is provided with four said third recessed portions, and every two said third recessed portions are disposed diagonally; and
 the fifth connecting surface is provided with two second projecting portions and two fourth recessed portions, the two second projecting portions are disposed on the fifth connecting surface along a fifth diagonal line, the two fourth recessed portions are disposed in the fifth connecting surface along a sixth diagonal line, and the fifth diagonal line and the sixth diagonal line intersect perpendicularly; and each of the sixth connecting surfaces is provided with four said fourth recessed portions, and every two said fourth recessed portions are disposed diagonally.   
     
     
         15 . The connecting structure of building blocks of  claim 14 , wherein the first building block body has a size larger than the second building block body. 
     
     
         16 . The connecting structure of building blocks of  claim 15 , wherein an edge length of the first building block body is twice an edge length of the second building block body. 
     
     
         17 . The connecting structure of building blocks of  claim 15 , wherein a periphery of each of the third recessed portions in the third connecting surface and the fourth connecting surfaces are evenly provided with four fourth recessed portions that are in communication with the each of the third recessed portions in the third connecting surface and the fourth connecting surfaces, and a periphery of each of the first projecting portions is evenly provided with four fourth recessed portions; and
 the third recessed portion of each of the sixth connecting surfaces is disposed in a center of the each of the sixth connecting surfaces, which is in communication with four said fourth recessed portions in the each of the sixth connecting surfaces; a center of the fifth connecting surface is provided with one third recessed portion which is in communication with two fourth recessed portions in the fifth connecting surface.   
     
     
         18 . The connecting structure of building blocks of  claim 13 , wherein the first projecting portions are in a hollow square columnar structure or in a columnar structure formed by a plurality of sheet-like structures arranged at intervals; and the second projecting portions are in a hollow square columnar structure or in a columnar structure formed by a plurality of sheet-like structures arranged at intervals.