Arm exercise device for sports fitness

The utility model discloses an arm exercise device for sports fitness, exercise device includes that the subassembly is tempered to the arm and the arm relaxs the subassembly, the inside cavity of thefixed column of arm exercise subassembly just open the one side on the top of fixed column has through -hole no. 1, the interior bottom fixed connection of fixed column the one end of stretch cord no. 1, the fixed column top is vertical to be fixed with branch no. 1, the lower terminal surface of branch no. 1 is equipped with a hanging stick, the other end of stretch cord no. 1 passes the spout of pulley just the tip fixed connection of stretch cord no. 1 the one end of hinge, hinged joint to holding rod, the bottom level that the arm relaxs the fixed column of subassembly is equipped with branch no. 2, the both sides of fixed column are equipped with a fixed block respectively, the one end fixed connection of stretch cord no. 2 arrives the fixed block, the other end fixed connection of stretch cord no. 2 hold th