Calculus structure

Abstract

A calculus structure has a plurality of unit components and a plurality of joint components is provided. The unit components and the joint components are adapted to form a target structure. Each end of each of the joint components has an embedding construction or an embedded construction. Each of the unit components and the joint components has a bore therein for communication with each other. The bore is adapted to allow a cascading part to pass therethrough so that the unit components and the joint components are cascaded together by the cascading part, and the unit components and the joint components are movable relative to the cascading part so that the unit components and the joint components abut against each other in a cascading order to form the target structure.

What is claimed is: 
     
         1 . A calculus structure, comprising a plurality of unit components and a plurality of joint components, wherein the unit components and the joint components are adapted to form a target structure; each end of each of the joint components has a embedding construction or an embedded construction, each of the unit components and the joint components has a bore therein for communication with each other, the bore is adapted to allow a cascading part to pass therethrough so that the unit components and the joint components are cascaded together by the cascading part, and the unit components and the joint components are movable relative to the cascading part so that the unit components and the joint components abut against each other in a cascading order to form the target structure. 
     
     
         2 . The calculus structure of  claim 1 , wherein a start end of the cascading part comprises a first blocking part which is sized to be unable to pass through one of the unit components or of the joint components that is cascaded at the start end. 
     
     
         3 . The calculus structure of  claim 2 , wherein an end of the one of the unit components or of the joint components that is cascaded at the start end has a funneled or stepped bore, and a size of the funneled or stepped bore increases gradually from the inside to the outside, and a width in an inner space of the funneled or stepped bore at an end where the funneled or stepped bore has the maximum size is adapted to completely cover the first blocking part. 
     
     
         4 . The calculus structure of  claim 2 , further comprising a fixing device adapted to fix a tail end of the cascading part so that loosing and sliding of the cascading part is prevented. 
     
     
         5 . The calculus structure of  claim 4 , wherein the tail end of the cascading part comprises a second blocking part which is unable to pass through the fixing device. 
     
     
         6 . The calculus structure of  claim 1 , wherein some of the unit components each has an embedding construction or embedded construction. 
     
     
         7 . The calculus structure of  claim 1 , wherein an end of the cascading part is adapted to connect with a spring. 
     
     
         8 . The calculus structure of  claim 1 , wherein an elastic part is additionally provided between the unit components and the joint components. 
     
     
         9 . The calculus structure of  claim 1 , wherein the cascading part comprises a start end or a tail end, at least one of which is adapted to be directly fixed in position without the need of a blocking part. 
     
     
         10 . The calculus structure of  claim 1 , wherein some of the unit components each has a second bore which is adapted to allow a second cascading part to pass therethrough.