Shock absorbing skateboard device

Abstract

A shock-absorbing skateboard device has a main board, a downtube connected to the main board, a head tube connected to the downtube, a handle disposed on the head tube, a front wheel connected to the head tube, a rear wheel support frame disposed on a bottom of the main board, and a rear wheel connected to the rear wheel support frame. A shock-absorbing mechanism is connected to the rear wheel support frame. An adjusting mechanism is connected to the shock-absorbing mechanism.

I claim:  
     
         1 . A shock-absorbing skateboard device comprises: 
 a main board,    a downtube connected to the main board,    a head tube connected to the downtube,    a handle disposed on the head tube,    a front wheel connected to the head tube,    a rear wheel support frame disposed on a bottom of the main board,    a rear wheel connected to the rear wheel support frame,    a shock-absorbing mechanism connected to the rear wheel support frame, and    an adjusting mechanism connected to the shock-absorbing mechanism.    
     
     
         2 . The shock-absorbing skateboard device as claimed in  claim 1 , wherein the shock-absorbing mechanism has a link unit having a first link and a second link, an elastic element, and a blocking rod, the blocking rod is disposed on the bottom of the main board to block the second link, the first link is connected to the rear wheel support frame, and the second link is connected to the first link and the elastic element.  
     
     
         3 . The shock-absorbing skateboard device as claimed in  claim 2 , wherein the adjusting mechanism has a positioning seat disposed on the bottom of the main board, a ring engaging with the elastic element, and a bolt fastening the ring and the positioning seat together.