法国专利FR3032631A3 SPRAY GUN WITH ROTARY NOZZLE

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专利摘要:
A rotary nozzle spray gun comprises a handle comprising an air inlet, a valve seat, a gas distribution tube connected to the valve seat and terminating with a coupling connection portion and a trigger being operable to allow the external compressed air to enter the air inlet and the gas delivery tube, a fixing tube connected to the coupling connection portion of the gas distribution tube, and a rotating pattern generator comprising a gas supply tube connected to the coupling connection portion and suspended in a housing chamber, a bearing mounted on a connecting portion, a coupling sleeve mounted on an outer ring and a rotating nozzle attached to the coupling portion; coupling sleeve and rotatably disposed in an orifice and defining a gas accumulation chamber and an oblique ejection hole for ejecting the flow of gas a compressed air section passing through the air inlet, the gas distribution pipe and the gas supply pipe into the gas storage chamber.
公开号:FR3032631A3
申请号:FR1558674
申请日:2015-09-16
公开日:2016-08-19
发明作者:Den-Nan Fu；Huang-Yuan Huang
申请人:Neutek Int Inc；
IPC主号:

专利说明:

[0001] BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to spray gun technology and, more particularly, to a rotary nozzle spray gun, which includes a handle providing a dispensing tube. gas, a fixing tube connected to the gas distribution tube, a rotating pattern generator connected to the gas distribution tube and containing a rotary nozzle in a hole of the fixing tube in a rotary manner for ejecting compressed air .
[0002] Description of the Related Art With advances in technology, all aspects of the quality of our lives have improved continuously. In transport, cars and motorcycles are widely used by people as personal transport vehicles. The number of cars and motorcycles continues to increase. A large number of automatic washing machines are commercially available for washing cars and motorcycles. These automatic washing machines commonly use rotating brushes for cleaning cars. Cleaning a car with rotating brushes can not effectively remove stains and dirt from the edges, or convex and concave parts of the car body. Some people would clean their car manually 3032631 2 with clear water, and then remove residual water stains from the car body with a dry cloth. However, cleaning a car in this way is laborious and time consuming. In carrying out a general cleaning task, people will normally apply a flow of water to the surface of the object to be cleaned and simultaneously wipe the surface of the object with a brush or cloth. When cleaning a car or building, it is necessary to apply a strong jet of water to the surface to be cleaned and then wipe the surface with a brush or cloth. To eject a strong jet of water on the surface to be cleaned, people will normally attach a garden hose to a water tap and press the end of the garden hose with their fingers, which will cause ejecting water out of the terminal end of the garden hose onto the surface to be cleaned. After cleaning the surface with water jets, a brush or cloth is then used to wipe the cleaned surface. This cleaning method is time consuming and wastes a large amount of water, and therefore does not meet energy and water saving requirements. In order to alleviate the problem of wasting water resources, certain designs are created to combine the use of high pressure air with a water gun to enhance the strength of the rinse with water and to control the consumption time. of water, which avoids causing a huge loss of water. As illustrated in FIG. 8, a conventional rotating nozzle spray gun A is shown. The rotary nozzle spray gun A generally comprises an Al handle, a T-bar A2, a liquid tank A3, and a spray nozzle assembly B. The spray nozzle assembly B comprises a shaped cylinder B1 horn assembly having a threaded connector B11 located at one end thereof and attached to an air outlet end A4 of the T-bar A2, a rotary tube C having a connector C1 at one end thereof and rotatably coupled to the air outlet end A4 of the T-bar A2 within the threaded connector B11, a plurality of counterweights C2 mounted around the periphery of the rotatable tube C, a C3 dip tube inserted therein through the rotary tube C and the T-bar A2 and immersed in the liquid tank A3, and a nozzle end C31 located at one end of the dip tube C3. In application, a flow of compressed air from an external source of compressed air is guided through an air passage in the handle A1 and the T-bar A2 in the rotary tube C. When the compressed air passes through the rotary tube C and the nozzle end C31 of the dip tube C3, a Venturi effect is created to suck the liquid from the liquid tank A3 into the T-bar A2 for mixing with the air compressed around the nozzle end C31 so that the air-liquid mixture can be forced out of the horn cylinder B1 in the form of a mist of fine droplets for its application. However, in actual application, when the rotary tube C of the rotary nozzle spray gun A is forced by the flow of compressed air to rotate in the horn-shaped cylinder B1 at a high speed, the rotating tube C and the counterweights C2 forcefully rub against the inner wall of the horn-shaped cylinder B1, which causes rapid wear of the horn cylinder B1 in use. After a long use, the connection area between the coupling C1 of the rotary nozzle C 10 and the exit end A4 of the T-bar A2 can break easily, and the broken component part can be forced out of the cylinder by Bl horn shape, which leads to an accident. Therefore, it is desirable to provide a rotary nozzle spray gun that eliminates the problem of friction between the rotating nozzle and the inner wall of the horn-shaped cylinder and the problem of the possibility of rupture of the rotating tube in operation.
[0003] SUMMARY OF THE INVENTION The present invention has been made in view of the circumstances. It is therefore the main object of the present invention to provide a rotary nozzle spray gun, which comprises a handle equipped with a gas delivery tube and a trigger, a fixing tube connected to the tube. and a rotating pattern generator connected to the gas delivery tube and containing a rotating nozzle in a rotatably mounted orifice of the attachment tube. Thus, when the trigger of the handle is actuated to allow a flow of compressed air to enter the gas delivery tube to the rotating nozzle, the intake compressed air flow forces the nozzle 5 rotational pattern of the spinning pattern generator to rotate in the hole of the attachment tube. Preferably, the rotary nozzle spray gun comprises a handle that includes a trigger controlled valve seat and a gas delivery tube extending from the valve seat and terminating with a coupling connection portion, a an attachment tube connected to the coupling portion of the gas distribution tube, and a rotating pattern generator, which comprises a gas supply tube connected to the coupling connection portion of the dispensing tube of the gas supply tube; gas and suspended in a housing chamber of the fixing tube, a bearing, a coupling sleeve and a rotary nozzle mounted on a connecting portion 20 of the gas supply tube. Upon actuation of the trigger on the handle, the compressed air is guided through an air inlet of the handle into the gas supply tube of the spinning pattern generator and then forced out of an air hole. oblique ejection of the rotary nozzle, and at the same time a centrifugal force is created and causes the rotary nozzle to rotate in an orifice of the attachment tube and, thus, a turbulent flow of compressed air is ejected from the gun spray. In addition, the gas delivery tube may be configured to provide a lower connecting tube for connection of a water tank, and a water delivery tube is mounted in the gas distribution hole. of the gas distribution tube and extends from the lower connecting tube through the gas supply hole 5 of the gas supply tube of the rotating pattern generator into the gas accumulation chamber of the rotating nozzle and ends with a water outlet end that is inserted into a through hole in the rotating nozzle. Thus, when a turbulent flow of compressed air is ejected from the annular space in the through-hole around the water outlet end, fluid flow is drawn into the lower connecting tube of the outlet tube. gas delivery and the water delivery tube and ejected out of the water outlet end of the water delivery tube, and the ejected fluid out of the water outlet end is then transformed into a mist, the compressed air is simultaneously ejected out of the oblique ejection hole, which makes the fog more thin. Preferably, the spinning pattern generator comprises a gas supply tube, a bearing, a coupling sleeve and a rotating nozzle. The gas supply tube comprises a gas supply port extending axially through opposite front and rear ends thereof, a connecting portion at one end thereof for supporting the bearing, the coupling bushing and the rotating nozzle, and a junction tip located at an opposite end thereof and terminating in a threaded neck and threaded into a threaded hole in a coupling portion of the tube supply gas to the handle. The connecting portion of the gas supply tube comprises a coupling end tube with a relatively smaller outer diameter extending axially forwardly from one end of the gas supply tube remote from the tube. and a tubular threaded rod with a relatively smaller outer diameter extending axially toward the front of the mating end tube. The bearing includes an axle hole coupled to the coupling end tube. The coupling sleeve includes a retaining hole attached to an outer race of the bearing for synchronous rotation with the outer race of the bearing, and an outer thread extending around its periphery. The rotary nozzle has an internal thread screwed onto the outer thread of the coupling sleeve. In addition, the gas accumulation chamber of the rotary nozzle is disposed in communication with the gas supply hole of the gas supply tube. The oblique ejection hole of the rotary nozzle extends obliquely from the gas accumulation chamber to the outside of the rotary nozzle. Thus, when a compressed air inlet flow is guided through the gas supply hole of the gas supply tube into the gas accumulation chamber of the rotary nozzle, the rotary nozzle and the The coupling bushing is forced to rotate with the bearing outer ring 30 relative to the gas supply tube, and at the same time the compressed air accumulated in the gas accumulation chamber is ejected out of the rotary nozzle through oblique ejection hole. Preferably, the gas distribution tube is a T-shaped three-way tube, comprising a lower connecting tube located on a lower side thereof. In addition, a water reservoir is attached to the lower connecting tube of the gas distribution tube and contains therein a fluid (such as water, detergent, soap, water wax , etc.). In addition, a dip tube is connected to the lower connecting tube and inserted into the water tank to draw fluid into the lower connecting tube. Further, a water dispensing tube is connected to the lower connecting tube in communication with the dip tube and inserted into the gas distribution hole of the gas delivery tube and terminated by a water outlet end. . The water outlet end of the water delivery tube is inserted into a through hole in the rotary nozzle on a lateral side with respect to the oblique ejection hole. Thus, when a turbulent flow of compressed air is ejected from the annular space in the through hole around the water outlet end, fluid flow is drawn into the lower connecting tube of the outlet tube. distribution of gas and the water delivery tube and ejected out of the water outlet end of the water delivery tube, and the fluid ejected out of the water outlet end is then transformed into a mist, the compressed air is simultaneously ejected from the ejection hole obliquely, which makes the fog more thin. Other advantages and features of the present invention will be well understood with reference to the following description in conjunction with the accompanying drawings, in which like reference symbols designate identical structural components.
[0004] BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an oblique elevational view of the top of a rotary nozzle spray gun according to the present invention. Figure 2 is an exploded view of the rotary nozzle spray gun according to the present invention. Fig. 3 is an exploded view of the spinning pattern generator of the rotary nozzle spray gun according to the present invention.
[0005] Fig. 4 is a sectional side view of the rotary nozzle spray gun according to the present invention. FIG. 5 is an enlarged view of part A of FIG.
[0006] Fig. 6 is a sectional side view of another form of the rotary nozzle spray gun according to the present invention. Fig. 7 is an enlarged view of part B of Fig. 6.
[0007] Figure 8 is a sectional side view of a rotary nozzle spray gun according to the prior art.
[0008] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Referring to FIGS. 1 to 5, an elevational view of a rotary nozzle spray gun, an exploded view of the rotary nozzle spray gun, an exploded view of the spinning pattern generator of the rotating nozzle spray gun and a sectional side view of the rotary nozzle spray gun are shown. As illustrated, the rotary nozzle spray gun comprises a handle 1, a fixing tube 2 and a spinning pattern generator 3. The handle 1 comprises an air inlet 11 located on a lower side thereof, a valve seat 12 located on an upper side thereof, a trigger 13 operable to control the valve seat 12 to admit a flow of external compressed air through the air inlet 11, and a gas distribution tube 14 connected by an inner end thereof to an outer end of the valve seat 12 facing the air inlet 11 and defining therein a gas distribution hole extending axially 140 in communication with the valve seat 12 and the air inlet 11. In addition, the gas delivery tube 14 comprises a coupling connection portion 141 located at an opposite outer end thereof. away from the van seat 12. The coupling connection portion 141 is a threaded coupling connection rod 1411 extending from the outer end of the gas delivery tube 14, defining therein a threaded hole 1412 in communication with each other. with the gas dispensing hole 140. The attachment tube 2 comprises a coupling connection end-piece 21 at one end thereof, a coupling connection threaded hole 211 defined in the connecting end-piece 21. coupling 211, an enlarged orifice 201 located at an opposite end thereof, and a housing chamber 20 defined therein and disposed axially in communication between the mating connection threaded hole 211 and the port 201 .
[0009] The spinning pattern generator 3 comprises a gas supply tube 31, a bearing 32, a coupling sleeve 33 and a rotary nozzle 34. The gas supply tube 31 comprises a gas supply hole 310 extending axially through opposite front and rear ends thereof, a junction tip 311 located at the rear end which is a threaded neck 3111 extending axially rearwardly from the rear end of the tube gas supply 31, and a connecting portion 312 located at the front end. The connecting portion 312 comprises a coupling end tube 3121 extending axially forward of the front end of the gas supply tube 31 and a tubular threaded rod 3122 extending axially forwardly. The bearing 32 defines therein a shaft hole 320 which is coupled to the coupling end tube 3121 of the connecting portion 312 of the gas supply tube 31. In addition, a lock nut 321 is threaded onto the tubular threaded rod 3122 to prevent the bearing 32 from exiting the mating end tube 3121. The mating bushing 33 is mounted around the gas supply tube 31, comprising a retaining hole 330 attached to an outer race 322 of the bearing 32, and an outer thread 331 extending around the periphery thereof. The rotary nozzle 34 includes an internal thread 341 located in one side thereof and screwed onto the outer thread 331 of the coupling sleeve 33, a gas accumulation chamber 340 defined therein and extending therethrough. inwardly of the external thread 331, and an oblique ejection hole 342 extending obliquely forwardly of the accumulation chamber 340 outside the rotary nozzle 34 at an eccentric location.
[0010] For installation, connect the air inlet 11 of the handle 1 to an external high pressure air source. At this time, the user can actuate the trigger 13 of the handle 1 to control the admission of compressed air from the external high pressure air source 25 through the air inlet 11. Sealing ring 1413 is mounted around coupling threaded threaded rod 1411 of coupling coupling portion 141 of gas delivery tube 14 of handle 1, and thereafter the threaded coupling connection hole 211 of the coupling connection end 21 of the fixing tube 2 is screwed onto the coupling connection threaded rod 1411 of the coupling connection portion 141 of the gas distribution tube 14 and stopped at the of the sealing ring 5 1413 against the coupling connection end-piece 21 of the fixing tube 2. In addition, before attaching the coupling connection threaded hole 211 of the fixing tube 2 to the connection threaded rod coupling 1411 of the tub In the case of gas distribution 14, the threaded collar 3111 of the connecting end 311 of the gas supply tube 31 of the spinning pattern generator 3 is screwed into the threaded hole 1412 of the coupling connection portion 141 of the gas distribution tube 14. After fixing the coupling connection threaded hole 21 of the coupling connection piece 21 of the fixing tube 2 to the coupling connection threaded rod 1411 of the connecting part coupling means 141 of the gas distribution tube 14, the fixing tube 2 is disposed on the front side of the coupling connection portion 141 of the gas distribution tube 14 around the gas supply tube 31, and the connecting portion 312 of the gas supply tube 31 is suspended in the orifice 201 of the fixing tube 2 25 and the bearing 32, the coupling sleeve 33 and the rotary nozzle 34 can then be coupled to the part of connection 312 of the tube gas supply 31 and suspended in rotation in the orifice 201 of an outer side of the housing chamber 20 of the fixing tube 2. Thus, the handle 1, the fixing tube 2 and the rotating pattern generator 3 are assembled to form the rotary nozzle spray gun of the present invention. In application, connect the air inlet 11 of the handle 1 to the external high-pressure air source 5 (for example, an air compressor), and then actuate the trigger 13 of the handle 1 to control the air. admitting compressed air from the external high pressure air source through the air inlet 11 and an air distribution hole 121 from the valve seat 12 into the gas distribution hole 140 of the gas distribution tube 14, allowing the compressed air inflow flow to pass through the coupling connection portion 141 of the gas delivery tube 14 and the gas supply hole 310 of the gas supply tube 31 of the spinning pattern generator 3 in the gas accumulation chamber 340 of the rotary nozzle 34, and then to pass from the gas accumulation chamber 340 through the oblique ejection hole 342 to the outside of the spray gun. At the same time, the rotary nozzle 34 and the coupling sleeve 33 are forced to rotate on the outer ring 322 of the bearing 32 by the pressure of the flow of compressed gas passing therethrough, and thus, a powerful jet. The air is continuously rotated and ejected onto the surface of the target (the body of a car or the outside glass of a building) to remove water stains or dust from the surface of the target without cause damage.
[0011] In addition, the attachment tube 2 which is connected to the gas delivery tube 14 of the handle 1 may be a horn-shaped tube, a straight tube or a polygonal tube. With reference to FIGS. 6 and 7, a sectional side view of another form of the rotary nozzle spray gun according to the present invention and an enlarged view of part B of FIG. 6 are shown. This other form is convenient for ejecting a swirling flow of water mist. According to this other form, the gas distribution tube 14 of the handle 1 is a T-shaped three-way tube comprising a lower connecting tube 142 disposed vertically on a lower side thereof in communication with the hole In addition, a plunger tube 1422 is connected to the lower connecting tube 142 and suspended in the water tank 1421 near the bottom wall of the water supply vessel 1421. In addition, a water dispensing tube 1423 is mounted in the gas dispensing hole 140 of the gas delivery tube 14 and extends from the lower connecting tube 142 through the air gap. supplying gas 310 from the gas supply tube 31 of the spinning pattern generator 3 into the gas accumulation chamber 340 of the rotary nozzle 34 and terminating at a water outlet end 1424 which is inserted into a through hole 343 which is located in the rotating nozzle 34 and cut through a front surface 344 of the rotary nozzle 34. The through hole 343 has a larger diameter than the outer diameter of the water outlet end 1424 so that a gap The annular ring is left in the through hole 343 around the water outlet end 1424 of the water distribution tube 1423. In application, connect the air inlet 11 of the handle 1 to a source of water. external high pressure air (an air compressor) with a high pressure hose 111, and then actuate the trigger 13 of the handle 1 to control the inflow of compressed air from the external high pressure air source through the air inlet 11 and an air distribution hole 121 of the valve seat 12 into the gas dispensing hole 140 of the gas distribution pipe 14, allowing the inlet flow of compressed air to pass through the coupling connection portion 141 of the dis-tubing Gas flow 14 and the gas supply hole 310 of the gas supply tube 31 of the spinning pattern generator 3 in the gas accumulation chamber 340 of the rotary nozzle 34 and then to pass from the gas chamber. gas accumulation 340 through the oblique ejection hole 342 outwardly of the spray gun. At the same time, the rotary nozzle 34 and the coupling sleeve 33 are forced to rotate on the outer ring 322 of the bearing 32 by the pressure of the flow of compressed gas passing therethrough, and thus, a powerful jet. air is continuously rotated and ejected from the spray gun. When the intake compressed air flow passes through the connection portion 312 of the gas supply tube 31 and the through hole 343 of the rotary nozzle 34, a Venturi effect 30 is created in the through hole 343, which causes the fluid contained in the water tank 1421 through the plunger tube 1422 and the lower connecting tube 142 into the water dispensing tube 1423 and then guiding it out of the tube 1424. When a flow of fluid is ejected out of the water outlet end 1424, the compressed air is constantly guided into the chamber. gas accumulation 340 of the rotary nozzle 34 and ejected from the oblique ejection hole 342 and the annular space in the through hole 343 around the water outlet end 1424, causing the ejecting fluid flow out of the water outlet end 1424 for its transformation into a fog. Thus, when the user actuates the trigger 13 of the handle 1 to allow a flow of compressed air to pass from the external high pressure air source through the air inlet 11 into the gas distribution tube 14 and the gas supply tube 31 of the spinning pattern generator 3 and the gas accumulation chamber 340 of the rotary nozzle 34 and then pass from the gas accumulation chamber 340 through the ejection hole obliquely 342 and the annular space in the through hole 343 around the water outlet end 1424 outwardly of the spray gun, at the same time a flow of fluid is ejected out of the end of water outlet 1424 and turned into a fog. When a powerful jet of compressed air is ejected from the annular space in the through hole 343 around the water outlet end 1424 to transform the fluid flow ejected into a mist, the compressed air is simultaneously ejected out of the oblique ejection hole 342, which makes the fog more thin. As indicated above, the threaded rod 3111 of the gas supply tube 31 of the spinning pattern generator 3 is screwed into the threaded hole 1412 of the coupling connection portion 141; the bearing 32 is mounted on the coupling end tube 3121 of the connection portion 312 of the gas supply tube 31; the lock nut 321 is threaded onto the tubular threaded rod 3122 of the connecting portion 312 of the gas supply tube 31. In addition, the outer diameter of the lock nut 321 is larger than the inside diameter of the lock hole. Thus, the bearing 32 is held in place by the locknut 321, and the latter can not leave the coupling end tube 3121. In addition, the retaining hole 330 of the coupling sleeve 33 is fixed to the outer ring 322 of the bearing 32; the internal thread 341 of the rotary nozzle 34 is screwed onto the external thread 331 of the coupling sleeve 33; the gas supply tube 31 of the rotating pattern generator 3 is suspended in the housing chamber 20 of the fixing tube 2; the rotary nozzle 34 is rotatably supported on one end of the gas supply tube 31 in the orifice 201 of the attachment tube 2. When the compressed air is guided into the gas supply hole 310 of the tube In supplying gas 31, it is accumulated in the gas accumulation chamber 340 of the rotary nozzle 34 and then forced out of the obliquely ejecting hole 3432 of the rotary nozzle 34, which causes the rotation of the rotary nozzle 34 with the coupling sleeve 33 and the outer race 322 of the bearing 32. Thus, when a jet of compressed air is delivered through the gas supply hole 310 and ejected out of the oblique ejection 342, the rotary nozzle 34 is rotated in the orifice 201 of the fixing tube 2, while the gas supply tube 31 is held stationary in the housing chamber 20 of the fixing tube 2 without cause the generation of a centrifugal force to force the tube of food Gas supply 31 opposite the attachment tube 2, and thus the structural strength of the fixing tube 2 and the rotating pattern generator 3 is enhanced. In addition, the water outlet end 1424 of the water dispensing tube 1423 is inserted into the through hole 343 of the rotating nozzle 34 of the spinning pattern generator 3, and the plunger tube 1422 is connected to lower connection 142 and 20 immersed in the water tank 1421 to suck the contained fluid. Thus, when a fluid flow is drawn into the plunger tube 142 and guided through the water dispensing tube 1423 and the water outlet end 1424 outwardly of the through hole 343 of the rotary nozzle 34, the ejected compressed air exiting the oblique ejection hole 342 and the annular space in the through hole 343 around the water outlet end 1424 causes the ejected fluid to be turned out of the end. water outlet 1424 in a fog. In addition, the lock nut 321 is threaded onto the tubular threaded rod 3122 of the connecting portion 312 of the gas supply tube 31 of the spinning pattern generator 3 to stop the bearing 32 and the coupling sleeve 33. in place, which avoids the falling of the bearing 32 and the coupling sleeve 33 out of the connection portion 312. In addition, the internal thread 341 of the rotary nozzle 34 is screwed onto the external thread 331 of the socket When the rotary nozzle 34 and the coupling sleeve 33 are rotated relative to the bearing 32, the direction of rotation of the rotary nozzle 34 and the coupling sleeve 33 is the inverse of the screwing direction between the rotary nozzle 34 and the coupling sleeve 33, and thus the centrifugal force produced during the rotation of the rotary nozzle 34 and the coupling sleeve 33 does not cause separation between the rotary nozzle 34 and the doui Thus, in application, the assembly of the rotary nozzle 34, the bearing 32 and 20 of the coupling sleeve 33 will not be forced out of the housing chamber 20 of the fixing tube 2, This guarantees a high level of operational safety of the spray gun and reduces the degree of danger in application.
[0012] As described above, the attachment tube 2 and the spinning pattern generator 3 are connected to the gas delivery tube 14 of the handle 1 by threading the threaded collar 3111 of the connecting tip 311 of the feed tube. in the threaded hole 1412 of the coupling threaded threaded rod 1411 of the coupling threaded connecting portion 141 of the gas dispensing tube 14 and then screwed in the threaded hole coupling connecting piece 211 of the coupling connection piece 21 of the fixing tube 25 to the coupling connection threaded rod 1411 of the coupling connecting portion 141 of the gas dispensing tube 14, and then the bearing 32, the coupling sleeve 33 and the rotary nozzle 34 are mounted at the connecting portion 312 of the gas supply tube 31 of the spinning pattern generator 3. In application, the input of air 11 of the handle 1 is connected to an external high pressure air source. By actuation of the trigger 13 to open the valve seat 12, the compressed air is guided through the air inlet 11 of the handle 1 and the gas distribution hole 140 of the dispensing tube of gas 14 in the gas supply tube 31 of the spinning pattern generator 3 and the gas accumulation chamber 340 of the rotary nozzle 34 and then forced out of the oblique ejection hole 342 of the rotary nozzle 34 When a jet of compressed air is forced out of the oblique ejection hole 342 of the rotary nozzle 34, the centrifugal force thus produced causes rotation of the rotary nozzle 34 in the orifice 201 of the attachment tube 2. In addition, the water tank 1421 is connected to the lower connecting tube 142 of the gas distribution tube 14, and the plunger tube 1422 is connected to the lower connecting tube 142 and immersed in the water tank 1421. So when a turbulent flow of compressed air is ejected hor In the through hole 343 around the water outlet end 1424, a fluid flow is drawn into the plunger tube 1422 and guided through the water dispensing tube 1423 and 5. the water outlet end 1424 to the outside of the through hole 343 of the rotary nozzle 34, and the fluid ejected out of the water outlet end 1424 is then converted into a mist, the compressed air is ejected simultaneously from the oblique ejection hole 342, which makes the fog thinner. In conclusion, the invention provides a rotary nozzle spray gun, which includes a handle that includes a trigger operated valve seat and a gas delivery tube extending from the valve seat and terminating in a portion of the valve seat. coupling connection, a fixing tube connected to the coupling portion of the gas distribution tube, and a rotating pattern generator, which comprises a gas supply tube connected to the connecting portion of coupling the gas distribution tube and suspended in a housing chamber of the fixing tube, a bearing, a coupling sleeve and a rotary nozzle mounted on a connecting portion of the gas supply tube. Upon actuation of the trigger on the handle, the compressed air is guided through an air inlet of the handle into the gas supply tube of the spinning pattern generator and then forced out of an air hole. obliquely ejecting the rotating nozzle, and at the same time, a centrifugal force is created and causes the rotating nozzle to rotate in an orifice of the attachment tube, and thus, a turbulent flow of compressed air is ejected out spray gun. In addition, the gas distribution tube may be configured to provide a lower connecting tube for connection of a water tank, and a water delivery tube is mounted in the gas distribution hole of the tube. of the gas supply tube and extends from the lower connecting tube through the gas supply hole of the gas supply tube of the spinning pattern generator into the gas accumulation chamber of the rotating nozzle and ends by a water outlet end which is inserted into a through hole in the rotating nozzle. Thus, when a turbulent flow of compressed air is ejected from the annular space in the through-hole around the water outlet end, fluid flow is drawn into the lower connecting tube of the outlet tube. distribution of gas and the water delivery tube and ejected out of the water outlet end of the water delivery tube, and the ejected fluid out of the water outlet end is then transformed into fog, the compressed air is simultaneously ejected out of the ejection hole obliquely, which makes the fog more thin. Although particular embodiments of the invention have been described in detail for purposes of illustration, various modifications and improvements can be made without departing from the spirit and scope of the invention.

权利要求:
Claims (10)
[0001]
REVENDICATIONS1. A rotary nozzle spray gun, comprising: a handle including an air inlet connectable to a source of external high pressure air for the admission of compressed air, a valve seat, a dispensing tube; gas connected to a front side of said valve seat, a trigger operable to open said valve seat to allow said compressed air to flow into said gas delivery tube, said gas distribution tube comprising a dispensing hole of gas in communication with said valve seat and said air inlet and a coupling connection portion located at a distal end thereof around an end of said gas distribution hole; and a spinning pattern generator, said spinning pattern generator comprising a gas supply tube connected to said coupling connecting portion of said gas delivery tube, said gas supply tube comprising a connecting portion located at an end thereof remote from said gas delivery tube and a gas supply hole extending axially through the two opposite ends thereof in communication with said gas supply hole, and a d a coupling, a bearing and a rotary nozzle mounted at said connecting portion of said gas supply tube, said coupling sleeve being mounted around said bearing and being drivable by said rotary nozzle to rotate relative to the said bearing, said rotary nozzle being mounted around said coupling sleeve, said rotary nozzle comprising an accumulator chamber; n gas disposed in communication with said gas supply hole of said gas supply tube and an oblique ejection hole extending obliquely forwardly of said accumulation chamber outside said gas supply tube; rotating nozzle at an eccentric location.
[0002]
The rotary nozzle spray gun of claim 1, further comprising a fastener tube connected to said coupling coupling portion of said gas distribution tube of said handle, and a seal ring mounted around said a coupling connection portion and stopped between said attachment tube and said gas delivery tube of said handle, wherein said mating connecting portion of said gas delivery tube of said handle comprises a threaded connecting rod of said coupling extending from an outer end of said valve seat and defining therein a threaded hole in communication with said gas dispensing hole; said attachment tube comprises a coupling connection tip located at one end thereof, and a mating connection threaded hole defined in said coupling connection piece and screwed onto said connecting threaded rod 3032631 coupling said gas distribution tube of said handle; said sealing ring is mounted around said mating connection threaded rod of said mating coupling portion and stopped between said gas delivery tube of said handle and said mating connection end of said mating tube ; said gas supply tube of said spinning pattern generator comprises a junction tip located at an opposite end thereof and terminating in a threaded neck which is screwed into said threaded hole in said coupling threaded threaded rod. said gas distribution tube of said handle. 15
[0003]
The rotary nozzle spray gun of claim 1, wherein said attachment tube further comprises an enlarged orifice located at an opposite end thereof away from said mating connector end in communication with an end of said housing chamber, said attachment tube being selected from the group of cornet-shaped tubes, straight tubes and polygonal tubes. 25
[0004]
The rotary nozzle spray gun of claim 1, wherein said connecting portion of said gas supply tube of said spinning pattern generator comprises a coupling end tube extending axially forwardly of one end of said remote gas supply tube of said gas delivery tube, and a tubular threaded rod extending axially forward of said coupling end tube; said bearing comprises an axle hole coupled to said coupling end tube; said spinning pattern generator further comprises a locknut screwed onto said tubular threaded rod to stop said bearing at said coupling end tube; said coupling sleeve comprises a retaining hole fixed to an outer ring of said bearing, and an external thread extending around the periphery thereof; said rotary nozzle comprises an internal thread screwed onto said external thread of said coupling sleeve. 15
[0005]
The rotary nozzle spray gun of claim 4, wherein the outer diameter of said coupling end tube is smaller than the outside diameter of said gas supply tube; the outer diameter of said tubular threaded rod is smaller than the outer diameter of said coupling end tube.
[0006]
The rotary nozzle spray gun of claim 4, wherein the outer diameter of said lock nut is larger than the diameter of said axis hole of said bearing.
[0007]
The rotary nozzle spray gun of claim 4, wherein said internal thread of said rotary nozzle is located in a side of said rotary nozzle; said gas accumulation chamber of said rotary nozzle is defined in said rotary nozzle and extends inwardly of said coupling sleeve; said oblique ejection hole of said rotary nozzle extends obliquely forward of said accumulation chamber outside said rotary nozzle at an eccentric location. 10
[0008]
The rotary nozzle spray gun according to claim 1, wherein said rotary nozzle of said spinning pattern generator further comprises a through hole extending from said gas accumulation chamber outside said rotary nozzle and disposed on a lateral side with respect to said oblique ejection hole; said gas delivery tube is a three-way T-shaped tube, comprising a lower connecting tube located on a lower side thereof and mounted with a water tank, a dip tube connected to said tube lower connecting piece and inserted into said water tank for drawing fluid from said water tank into said lower connecting tube, a water delivery tube connected to said lower connecting tube in communication with said dip tube and inserted in said gas delivery hole of said gas delivery tube and terminating at a water outlet end, said water outlet end of said water delivery tube being inserted into said through hole of said rotary nozzle . 3032631 29
[0009]
The rotary nozzle spray gun of claim 8, wherein the diameter of said through hole is larger than the outside diameter of said water outlet end of said water delivery tube so that an annulus space is defined in said through hole around said water outlet end of said water delivery tube. 10
[0010]
The rotary nozzle spray gun according to claim 1, further comprising a securing tube connected to said coupling connection portion of said gas distribution tube of said handle, said attachment tube comprising a connection nozzle a coupling located at one end thereof and connected to said coupling connection portion, and a housing chamber extending axially from said coupling coupling end at an opposite end thereof and housing said tube supplying gas to said spinning pattern generator.

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同族专利:

公开号 | 公开日

RU166314U1|2016-11-20|

TWI586436B|2017-06-11|

DE102015107764B4|2017-11-09|

DE102015107764A1|2016-11-24|

GB2537016A|2016-10-05|

FR3032631B3|2017-04-28|

TW201630664A|2016-09-01|

US9751098B2|2017-09-05|

ITUB201566393U1|2017-03-03|

GB201602111D0|2016-03-23|

US20160332175A1|2016-11-17|

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法律状态:
2016-09-26| PLFP| Fee payment|Year of fee payment: 2 |

2017-09-29| PLFP| Fee payment|Year of fee payment: 3 |

2018-07-18| PLFP| Fee payment|Year of fee payment: 4 |

2020-10-16| ST| Notification of lapse|Effective date: 20200910 |

优先权:

申请号 | 申请日 | 专利标题

TW104105598A|TWI586436B|2015-02-17|2015-02-17|The construction of the revolving gun|

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