Direct-through type assembled screw nozzle for atomization of liquid

This utility model relates to a straight-through type combination screw liquid atomizing sprayer, consists of nozzle main body and spraying hole, the nozzle main body is a hollow cylinder, the nozzle main body hollow cylinder has the slide fit with the external screw rod, which is a hollow cylinder, with the slide fit of inner screw rod, which is one cylinder, the outer circumference of both inner and outer screw rods is equipped with the spiral groove, the spiral groove of external screw rod and inner wall of nozzle main body may form the external spiral flow passage, the spiral groove of inner screw rod and the inner wall of external screw rod hollow body may form the internal spiral flow passage, the lower part of nozzle main body is equipped with the axial through hole, i.e., spraying hole, the outer of spraying hole is equipped with a external conical angle, and its inner side is equipped with the internal conical angle. Its nozzle is compact, light weight, simple structure, easy to assemble, high efficiency, and save the extinguishing agent.