Ballistic trajectory adjustment mechanism for toy gun

A ballistic trajectory adjustment mechanism for a toy gun, comprising:

• a gun base;
• an inner gun barrel penetrating through the gun base;
• a rubbing sleeve mounted on one end opening of the inner gun barrel;
• the rubbing sleeve comprising a rubbing portion having a portion thereof positioned inside the inner gun barrel;
• a gear set installed on one side of the rubbing sleeve;
• the gear set comprising a primary gear and a secondary gear driven by the primary gear;
• the secondary gear having an axial hole and an arched slot;
• the inner gun barrel penetrating through the axial hole;
• the arched slot extended from one side of the axial hole toward a direction away from the axial hole;
• a flexible press plate comprising a restricting end and a pressing end;
• the restricting end inserted into the arched slot;
• the pressing end extended to a position of the rubbing sleeve;
• and
• an adjustment barrel comprising a fixation end and a free end opposite from each other;
• the fixation end having a rotating axle attached to the primary gear;
• wherein the free end is subject to an external force to generate a rotation in order to drive the primary gear to rotate;
• the secondary gear is driven by the primary gear to rotate together;
• the restricting end of the flexible press plate moves upward and downward along a wall of the arched slot in order to allow the pressing end to press onto the rubbing sleeve and to change the position of the rubbing portion thereof in the inner gun barrel.