Cylinder tube of toy gun

Abstract

A cylinder tube of a toy gun is disclosed. A cylinder head is mounted on the cylinder tube of the toy gun. A tube passage is formed to penetrate through the cylinder head. Several air induction passages are formed circularly around the tube passage. A control device is applied to the air induction passages for opening or closing the air induction passages according to the forward or backward movement of the piston. As a result, much more air can be sucked into the air storage chamber immediately after the backward movement of the piston. Accordingly, the air capacity 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 improving the shooting performance of the toy gun and providing the simulated recoil effect, which simulates the real shooting.

1 . A cylinder tube of a toy gun comprising:
 a cylinder tube for holding a piston, said cylinder tube having a cylinder head on a front end thereof, said cylinder being penetrated through by a tube passage, said cylinder head having at least an air induction passage around said tube passage circularly; and   a control device for correspondingly opening or closing said air induction passage according to the movement of said piston, said control device being a movable plate.   
   
   
       2 . The cylinder tube of the toy gun of  claim 1 , wherein said movable plate has an opening on the center thereof corresponding to said tube passage. 
   
   
       3 . The cylinder tube of the toy gun of  claim 1 , wherein said movable plate is a thin rubber plate. 
   
   
       4 . The cylinder tube of the toy gun of  claim 1 , wherein said movable plate is a thin steel plate. 
   
   
       5 . The cylinder tube of the toy gun of  claim 1 , wherein said movable plate is a thin leaf spring. 
   
   
       6 . The cylinder tube of the toy gun of  claim 1 , wherein an outer cover is connected to one end of said cylinder head, the center of said outer cover is communicated with one end of said tube passage for forming an opening, said outer cover has a plurality of through holes, which are staggered with said air induction passage, and a plurality of air inlets formed between notches on the bottom of said outer cover and said cylinder head for communicating said air induction passage with said air storage chamber. 
   
   
       7 . The cylinder tube of the toy gun of  claim 1 , wherein an outer cover is connected to one end of said cylinder head, and said movable plate is affixed to said outer cover by a light spring. 
   
   
       8 . The cylinder tube of the toy gun of  claim 1 , wherein one end of said movable plate is affixed to the inside of said cylinder head by a nail. 
   
   
       9 . The cylinder tube of the toy gun of  claim 1 , wherein said movable plate is coupled with said tube passage via a hollow rod. 
   
   
       10 . A cylinder tube of a toy gun comprising:
 a cylinder tube for holding a piston, said cylinder tube having a cylinder head on a front end thereof, said cylinder being penetrated through by a tube passage, said cylinder head having at least an air induction passage around said tube passage circularly; and   a control device for correspondingly opening or closing said air induction passage according to the movement of said piston, said control device being a movable valve.   
   
   
       11 . The cylinder tube of the toy gun of  claim 10 , wherein at least an air inlet is formed on said movable plat and staggered with said air induction passage. 
   
   
       12 . The cylinder tube of the toy gun of  claim 10 , wherein two blocks are formed on both ends of said movable valve, respectively, for closing said air induction passage and for limiting the connection of said movable valve. 
   
   
       13 . The cylinder tube of the toy gun of  claim 10 , wherein said movable valve is coupled with said tube passage via a hollow valve rod. 
   
   
       14 . The cylinder tube of the toy gun of  claim 10 , wherein two blocks are formed on both ends of said movable valve, respectively, said movable valve is pivotally coupled with said tube passage via a hollow valve rod, and one of said blocks is to shift said movable valve by connection with a pull rod. 
   
   
       15 . The cylinder tube of the toy gun of  claim 10 , wherein a plurality of pivotal connection holes are formed circularly on said cylinder head for pivotal connection with a plurality of valve rods of said movable valve. 
   
   
       16 . The cylinder tube of the toy gun of  claim 10 , wherein a plurality of pivotal connection holes are formed circularly on said cylinder head for pivotal connection with a plurality of valve rods of said movable valve, said movable valve has an opening corresponding to said tube passage, and a spring is sleeved onto each of said valve rods. 
   
   
       17 . A cylinder tube of a toy gun comprising:
 a cylinder tube for holding a piston, said cylinder tube having a cylinder head on a front end thereof, said cylinder being penetrated through by a tube passage, said cylinder head having at least an air induction passage around said tube passage circularly; and   a control device for correspondingly opening or closing said air induction passage according to the movement of said piston, said control device being a steel ball valve.   
   
   
       18 . The cylinder tube of the toy gun of  claim 17 , wherein said air induction passage of said cylinder tube is a cone-shaped passage, and at least a blocking pillar is located on a larger opening of said air induction passage for forming at least two air inlets. 
   
   
       19 . The cylinder tube of the toy gun of  claim 17 , wherein said air induction passage of said cylinder tube is a cone-shaped passage, at least a blocking pillar is located 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.