Wheel-connected building block

Abstract

A wheel-connected building block has a main body, at least one engaging protrusion, and at least one axle. The main body has multiple connecting planes. Each one of the at least one engaging protrusion is formed on one of the multiple connecting planes of the main body. Each one of the at least one axle is formed on and protrudes from one of the other connecting planes. In use, multiple wheel-connected building blocks are respectively connected to wheels and the wheel-connected building blocks are engaged with building blocks, so the building blocks could move on a plane by the friction between the wheels and the plane. When the building blocks are combined to form a static model, the static model could have the moving function by connecting to the wheel-connected building blocks to expand the versatility of the building blocks.

1 . A wheel-connected building block comprising:
 a main body having multiple connecting planes;   at least one engaging protrusion, each one of the at least one engaging protrusion formed on one of the multiple connecting planes of the main body;   at least one axle, each one of the at least one axle formed on and protruding from one of the connecting planes that is not formed with the at least one engaging protrusion;   at least one connecting plate formed on one of the connecting planes that is not formed with the at least one engaging protrusion and the at least one axle; each of the at least one connecting plate having   an engaging hole, the engaging hole formed through the connecting plate; and   multiple reserved holes, each of the multiple reserved holes formed through the connecting plate and communicating with the engaging hole; wherein an area of each reserved hole is smaller than an area of the engaging hole; and   a connecting rod having two engaging portions, and the two engaging portions formed radially and respectively on two ends of the connecting rod; wherein one of the two engaging portions is engaged with the engaging hole of the at least one connecting plate.   
     
     
         2 . The wheel-connected building block as claimed in  claim 1 , wherein the number of the at least one engaging protrusion is two, and the two engaging protrusions are formed at a spaced interval on the same connecting plane of the main body. 
     
     
         3 . The wheel-connected building block as claimed in  claim 1 , wherein the number of the at least one axle is two, and the two axles are respectively formed on two opposite ones of the connecting planes of the main body. 
     
     
         4 . The wheel-connected building block as claimed in  claim 2 , wherein the number of the at least one axle is two, and the two axles are respectively formed on two opposite ones of the connecting planes of the main body. 
     
     
         5 . The wheel-connected building block as claimed in  claim 1 , wherein
 each one of the at least one axle has   a compression groove axially formed in an end of the axle away from the body; and   two limiting blocks respectively formed on two opposite outer surfaces of the end of the axle and around the compression groove.   
     
     
         6 . The wheel-connected building block as claimed in  claim 4 , wherein
 each one of the axles has   a compression groove axially foiiiied in an end of the axle away from the body; and   two limiting blocks respectively formed on two opposite outer surfaces of the end of the axle and around the compression groove.   
     
     
         7 . The wheel-connected building block as claimed in  claim 5 , wherein each one of the axles has an obstructing block, and the obstructing block is formed around the axle. 
     
     
         8 . The wheel-connected building block as claimed in  claim 6 , wherein
 each one of the axles has an obstructing block, and the obstructing block is formed around the axle.   
     
     
         9 . (canceled) 
     
     
         10 . (canceled) 
     
     
         11 . The wheel-connected building block as claimed in  claim 1 , wherein the number of the at least one connecting plate of the main body is two, and the two connecting plates are formed on two opposite ones of the connecting planes of the main body. 
     
     
         12 . The wheel-connected building block as claimed in  claim 8 , wherein the number of the at least one connecting plate of the main body is two, and the two connecting plates are formed on two opposite ones of the connecting planes of the main body. 
     
     
         13 . (canceled) 
     
     
         14 . (canceled) 
     
     
         15 . (canceled) 
     
     
         16 . (canceled)