| 摘要 |
A gyrating nozzle head spray gun includes grip including air inlet, valve seat, gas-delivery tube connected to valve seat and terminating in mating connection screw rod and trigger operable for letting external compressed air go into air inlet and gas-delivery tube, attachment tube connected to mating connection screw rod of the gas-delivery tube, gyrating nozzle head assembly including gas-supply tube connected to mating connection screw rod and suspended in attachment tube, bearing, cap, linking module and gyrating nozzle head mounted on one end of the gas-supply tube, and water-delivery tube having one end extended bottom of coupling hole of gas-delivery tube and connected to water tank for sucking in water and opposite end thereof inserted through gyrating nozzle head for ejecting fluid for creating mist of fine droplets upon ejection of compressed air through the gas-supply tube and oblique jet hole and central axle hole of the gyrating nozzle head. |
| 主权项 |
1. An improved structure of gyrating nozzle head spray gun, comprising:
a grip comprising an air inlet connectable to an external high-pressure air source for the intake of a compressed air, a valve seat, a gas-delivery tube connected with an inner end thereof to a front side of said valve seat, a trigger operable to open said valve seat for letting said compressed air flow into said gas-delivery tube, said gas-delivery tube comprising a gas-delivery hole in communication with said valve seat and said air inlet, a coupling hole located at a bottom side thereof and a mating connection screw rod axially extended from an opposite outer end thereof opposite to said valve seat, said mating connection screw rod defining therein a screw hole; a water-delivery tube having a water suction end curved and extended out of said coupling hole and an opposite water outlet end extended out of said screw hole of said mating connection screw rod of said gas-delivery tube; an attachment tube connected to said mating connection screw rod; and a gyrating nozzle head assembly, said gyrating nozzle head assembly comprising a gas-supply tube, said gas-supply tube comprising a threaded neck located at one end thereof and threaded into said screw hole of said mating connection screw rod, a connecting portion located at an opposite end thereof and a gas-supply hole axially extending through said threaded neck and said connecting portion, a linking module consisting of a coupling socket, a stopper and an inner liner and mounted on said connecting portion of said gas-supply tube, a bearing mounted with an outer race thereof in said coupling socket, a cap fastened to said connecting portion of said gas-supply tube to stop said bearing in place, said cap comprising a cone head and a through hole cut through the center of said cone head for the passing of said water outlet end of said water-delivery tube and a plurality of air guide holes equiangularly spaced around said cone head, and a gyrating nozzle head mounted on said coupling socket, said gyrating nozzle head comprising a gas accumulation chamber accommodating said coupling socket and said cap, said water outlet end of said water-delivery tube inserted through a central axle hole, and an oblique jet hole disposed in communication with said gas accumulation chamber for ejecting compressed gas. |
