摘要：

The nozzle device with automatic on-line dirt eliminating function consists of cylinder, nozzle and connector with duct to connect the cylinder and the nozzle. The cylinder comprising coaxial outer sleeve and inner sleeve, and has piston, piston rod and platen fixed to the lower end of the piston rod; and the nozzle includes nozzle shell, nozzle core, top disc and spring. The nozzle core has upper end with opening, conic lower end with 2-4 side holes and flow director in the cone center; and the nozzle shell has water spraying hole in the lower end. The present invention has the advantages of automatic on-line cleaning and no jamming in the nozzle.

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