Supplementary game controller for tablet computer

Abstract

A supplementary game controller for tablet computers is revealed. The supplementary game controller for tablet computers includes a universal ball joint disposed between a fixing base and a connection base. The fixing base is fixed on a plane while the connection base is used to hold a tablet computer. Thereby the supplementary game controller is inclined at different angles or rotated in different directions through the universal ball joint while users hold the connection base so as to control characters and movements in games running on the tablet computer.

1 . A supplementary game controller for tablet computers comprising a fixing base, a connection base and a universal ball joint;
 wherein the universal ball joint is arranged between the fixing base and the connection base; the universal ball joint includes an assembly sleeve fixed on the fixing base, and a ball that is mounted in the assembly sleeve and connected to the connection base; the fixing base is fixed on a plane and a handle is disposed on each of two sides of the connection base; a fastener is set on each of at least two corners on at least one diagonal line of the connection base so as to lock and fix the tablet computer diagonally.   
     
     
         2 . The device as claimed in  claim 1 , wherein the universal ball joint further includes a fastening sleeve that is connected to the assembly sleeve. 
     
     
         3 . The device as claimed in  claim 2 , wherein the assembly sleeve is mounted with an elastic part therein and the elastic part is elastically against the ball. 
     
     
         4 . The device as claimed in  claim 3 , wherein a ring gasket is placed around a top end of the elastic part and the ring gasket is against the ball. 
     
     
         5 . The device as claimed in  claim 1 , wherein a sliding slot corresponding to each fastener is arranged at the connection base; the fastener is mounted in the sliding slot and moved within the sliding slot. 
     
     
         6 . The device as claimed in  claim 5 , wherein the fastener includes a threaded rod and a stop block on a top end of the threaded rod; a bottom end of the threaded rod is passed through the sliding slot to be connected and fastened to a threaded cap. 
     
     
         7 . The device as claimed in  claim 6 , wherein a projection portion is disposed on a periphery of each of the two sliding slots set diagonally. 
     
     
         8 . The device as claimed in  claim 1 , wherein a wireless video transceiver is disposed in the connection base; once the tablet computer and the wireless video transceiver are connected with each other, video signals from the tablet computer are transmitted to the wireless video transceiver and then the wireless video transceiver sends the video signals having image signals and audio signals to a display disposed with a wireless video receiver.