Golf potting training device

Abstract

A golf putting training device comprises: a shaft, comprising a holding end and a connection end; a tunnel structure, comprising an opening at a front end of the tunnel structure, a hitting surface at a rear end of the tunnel structure, and two sidewalls to form two lateral sides of the tunnel structure, wherein the connection end of the shaft is connected to one of the sidewalls, wherein the sidewalls provide an arc shaped bottom line, wherein the hitting surface is connected to each of the sidewalls and is vertical to a tangent of the arc shaped bottom line at the rear end of the tunnel structure.

What is claimed is: 
     
         1 . A golf putting training device, comprising:
 a shaft, comprising a holding end and a connection end;   a tunnel structure, comprising an opening at a front end of the tunnel structure, a hitting surface at a rear end of the tunnel structure, and two sidewalls to form two lateral sides of the tunnel structure, wherein the connection end of the shaft is connected to one of the sidewalls, wherein the sidewalls provide an arc shaped bottom line, wherein the hitting surface is connected to each of the sidewalls and is vertical to a tangent of the arc shaped bottom line at the rear end of the tunnel structure.   
     
     
         2 . The golf putting training device as  claim 1 , wherein the arc shaped bottom line simulates a swing path. 
     
     
         3 . The golf putting training method as  claim 1 , wherein the two sidewalls are parallel to define a putting direction. 
     
     
         4 . The golf putting training method as  claim 1 , wherein each of the sidewalls provides a slide track equipped with a counterweight.