Fragment simulation device

The utility model discloses a fragment simulation device which comprises a linear slide rail, a barrel and an air cylinder, the air cylinder is fixed on a track of the linear slide rail, an air inlet end of the air cylinder is communicated with an air storage end, an exhaust end of the air cylinder is communicated with a firing valve, the barrel is fixed on a slide seat of the linear slide rail, and one end of the barrel is communicated with the firing valve through a connecting nut. During bullet loading, the connecting nut between the barrel and the air cylinder is loosened, and the barrel is moved towards the front end of the rail, so that fragment bullets are loaded from the rear end of the barrel. After filling is completed, the barrel and the air cylinder are fixed through the connecting nut, the percussion valve is controlled to be opened, the air cylinder can rapidly inject high-pressure gas into the barrel, fragment projectiles in the barrel are percussed to be rapidly ejected out of the barrel under