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 mati
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.
대표청구항▼
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 t
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; anda 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. 2. The gyrating nozzle head spray gun as claimed in claim 1, wherein said attachment tube comprises a mating connection screw hole located at one end thereof and threaded onto said mating connection screw rod of said gas-delivery tube of said grip, an attachment tube, a gasket ring mounted around said mating connection screw rod and stopped between said gas-delivery tube and said attachment tube, and an expanded orifice located at an opposite end, said attachment tube being selectively configured in the form of a horn tube, straight tube or polygonal tube. 3. The gyrating nozzle head spray gun as claimed in claim 1, further comprising a water tank detachably fastened to said coupling hole of said gas-delivery tube and adapted for holding a fluid, and a spring mounted around said water-delivery tube; one end of said water-delivery tube comprising said water suction end extended into said water tank and an opposite end of said water-delivery tube comprising said water outlet end inserted through said gas-supply tube, said through hole of said cap and said central axle hole of said gyrating nozzle head. 4. The gyrating nozzle head spray gun as claimed in claim 1, wherein said water-delivery tube is mounted with a spring around the periphery thereof, said spring having one end thereof stopped against said gas-supply tube. 5. The gyrating nozzle head spray gun as claimed in claim 1, wherein said connecting portion of said gas-supply tube comprises a coupling stub tube for the mounting of said coupling socket, a tubular screw rod axially forwardly extended from said coupling stub tube and fastened up with said cap, and an annular collar connected between said coupling stub tube and said tubular screw rod for supporting said bearing. 6. The gyrating nozzle head spray gun as claimed in claim 5, wherein the outer diameter of said collar is smaller than the outer diameter of said gas-supply tube; the outer diameter of said coupling stub tube and the outer diameter of said tubular screw rod are smaller than the outer diameter of said collar. 7. The gyrating nozzle head spray gun as claimed in claim 5, wherein the outer diameter of said cap is greater than the inner diameter of the said axle hole of said bearing. 8. The gyrating nozzle head spray gun as claimed in claim 5, wherein said coupling socket of said linking module comprises an outer thread extended around the periphery thereof; said gyrating nozzle head comprises an inner thread located in one end of said gas accumulation chamber and threaded onto said outer thread of said coupling socket of said linking module; a central axle hole cut through the center of an opposite side thereof and disposed in communication with said gas accumulation chamber and an oblique jet hole obliquely cut through the opposite side and disposed in communication with said gas accumulation chamber. 9. The gyrating nozzle head spray gun as claimed in claim 1, wherein said coupling socket comprises an accommodation chamber accommodating said stopper and said inner liner and engaged with said outer race of said bearing, and an outer thread extended around the periphery thereof; said gyrating nozzle head comprises an inner thread engaged with the said outer thread of said coupling socket.
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