Patent ID: 7726293

Claim:
A continuous firing trigger structure mechanism used in a toy gun and controllable by a trigger of the toy gun to drive airsoft bullets out of a sliding gun barrel of the toy gun, comprising: a valve body, an enclosed socket, a piston inserted into the enclosed socket, a sliding shell affixed to the piston, a return spring arranged to return the piston and sliding shell, a trigger, and a sliding gun barrel, wherein said valve body is disposed behind an output port of a magazine clip mounted in said toy gun in air communication with an air outlet nozzle of a high-pressure gas can mounted in said toy gun, and wherein said valve body comprises a rear end axially connected with said enclosed socket, and an axial through hole extending through front and rear ends thereof, and wherein a gas outlet valve tube is inserted through the axial through hole of said valve body so as to be movable backwards by the sliding gun barrel of said toy gun upon actuation of the trigger, said gas outlet valve tube having an air inlet and an air passage, and a spring mounted thereon to support said gas outlet valve tube in a position where the air inlet of said gas outlet valve tube is isolated from an inside space of said valve body; wherein, upon actuation of the trigger, a first portion of the high-pressure gas is directed to go from the air inlet of the gas outlet valve tube through the air passage to force a bullet out of the sliding barrel and wherein a second portion of the high-pressure gas goes to a gas between the axial through hole of the valve body and the gas outlet valve tube so as to force the piston and the sliding shell backwards, thereby causing the sliding shell to pull the return spring.