Piston structure of toy gun

Abstract

A piston structure of a toy gun is disclosed. An air induction passage and at least an air inlet are formed on the piston. In addition, a control device is applied to the piston for correspondingly opening or closing the air inlet according to the movement of the piston. As a result, much more air can be sucked into an air storage chamber immediately after the backward movement of the piston. Therefore, the air capacity of the air storage chamber of the cylinder tube can be increased so as to produce larger air pressure for pushing the bullet to the outside of the toy gun, thereby simulating the recoil effect of the real shooting and improving the shooting performance of the toy gun.

1 . A piston structure of a toy gun comprising:
 a piston having an air induction passage and at least an air inlet; and   a control device for correspondingly opening or closing said air inlet according to the movement of said piston, said control device being a movable plate.   
   
   
       2 . The piston structure of the toy gun of  claim 1 , wherein said movable plate is a thin rubber plate. 
   
   
       3 . The piston structure of the toy gun of  claim 1 , wherein said movable plate is a thin steel plate. 
   
   
       4 . The piston structure of the toy gun of  claim 1 , wherein said movable plate is a thin leaf spring. 
   
   
       5 . The piston structure of the toy gun of  claim 1 , wherein one end of said movable plate is affixed to one side of said air inlet of said piston by a nail. 
   
   
       6 . The piston structure of the toy gun of  claim 1 , wherein said movable plate is affixed to an outer cover connected to said piston by a light spring. 
   
   
       7 . The piston structure of the toy gun of  claim 1 , wherein a connection hole is further formed on said piston. 
   
   
       8 . The piston structure of the toy gun of  claim 1 , wherein a connection hole is further formed on said piston and said movable plate is inserted into said connection hole via a rod. 
   
   
       9 . A piston structure of a toy gun comprising:
 a piston having an air induction passage, at least an air inlet, and at least a pivotal connection hole; and   a control device for pivotal connection with said pivotal connection hole via a valve rod so as to correspondingly open or close said air inlet according to the movement of said piston, said control device being a movable valve.   
   
   
       10 . The piston structure of the toy gun of  claim 9 , wherein two blocks are mounted on both ends of said movable valve, respectively, for closing said air inlet and for limiting the pivotal connection of said movable valve. 
   
   
       11 . The piston structure of the toy gun of  claim 9 , wherein a spring is sleeved onto said valve rod of said movable valve. 
   
   
       12 . A piston structure of a toy gun comprising:
 a piston having an air induction passage and at least an air inlet; and   a control device for correspondingly opening or closing said air inlet according to the movement of said piston, said control device being a steel ball valve.   
   
   
       13 . The piston structure of the toy gun of  claim 12 , wherein said air induction passage of said piston is a cone-shaped passage and a blocking pillar is mounted on a larger opening of said air induction passage for forming at least two air inlets. 
   
   
       14 . The piston structure of the toy gun of  claim 12 , wherein said air induction passage of said piston is a cone-shaped passage, a blocking pillar is mounted on a larger opening of said air induction passage for forming at least two air inlets, and the diameter of said steel ball valve is larger than the calibers of said air inlets and a smaller opening of said air induction passage.