Visualization device for oil sprayer with vertical spraying hole

The utility model relates to a visual device of a vertical orifice oil injector. The visual device comprises an oil injector, a needle valve, an upper flange, a lower flange and a transparent nozzle, the needle valve is installed in the oil sprayer, the transparent nozzle is attached to the bottom face of the oil sprayer, a groove is formed in the top face of the transparent nozzle, the end of the needle valve protrudes out of the oil sprayer and is located in the groove, and a spraying hole coinciding with the central axis of the needle valve is formed in the groove. The oil sprayer and the transparent nozzle are fixed to the upper flange and the lower flange respectively, and the upper flange and the lower flange are detachably and fixedly connected. According to the visual device for the oil sprayer with the vertical spraying hole, a user can observe the oil spraying process of the device through the transparent spraying nozzle, the overall structure size of the device is equivalent to that of the actual d