CN209362754U

CN209362754U - A kind of structure-improved of spray gun spray nozzle

Info

Publication number: CN209362754U
Application number: CN201821928249.9U
Authority: CN
Inventors: 李宁
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-11-22
Filing date: 2018-11-22
Publication date: 2019-09-10
Anticipated expiration: 2028-11-22

Abstract

The utility model belongs to field of mechanical technique, in particular a kind of structure-improved of spray gun spray nozzle, including spray gun, spray head, jet cap, thimble and paint vehicle；The utility model, spray head is located among spray gun and jet cap, the front end of spray head is provided with mixing chamber, the front end of mixing chamber is provided with hexagonal and pulls hole nut, surrounding in mixing chamber one end is provided with several air inlets, it can allow compressed air into air inlet set by mixing chamber one end, compulsory for the first time paint vehicle can be stirred uniformly, it is formed by negative pressure by the puff prot ejection gas on jet cap again after stirring paint vehicle is sucked out, the decocting that paint vehicle is sucked out have again compression control by paint vehicle secondary agitation after by the hypervelocity strength of compressed air enabled paint vehicle be atomized rapidly and sprayed, the paint vehicle is adequately and uniformly spread and is atomized by the paint vehicle particle that secondary agitation sprays, paint vehicle particle after atomization can uniformly spray on object plane, avoid the waste of paint vehicle.

Description

A kind of structure-improved of spray gun spray nozzle

Technical field

The utility model belongs to field of mechanical technique, and in particular to a kind of structure-improved of spray gun spray nozzle.

Background technique

Aerial spraying is to use to compare a kind of extensive Coating technology in current oil paint coating construction, and aerial spraying is benefit It with the air-flow of compressed air, flows through spray tip hole and forms negative pressure, negative pressure sucks paint vehicle from suction pipe, sprays through nozzle, is formed Coating cloud, coating cloud are ejected into and are formed uniform paint film on covering with paint component surface；

Currently, the spray head of spray gun is during use, the spray head on most of spray gun intelligently carries out primary atomization, and And atomization is incomplete, so that paint vehicle water level particle when spraying is relatively thick and is easy that liquid status is presented, user must make spray gun Distance, which is sprayed-on object plane farther out, does not cause spray to generate apparent spraying trace, but this measure will cause most paint vehicle meaningless Dispersion, waste and do not meet environmental requirement, in addition, the paint vehicle outlet of common spray head be it is closed, can not disassembly, cleaning, Because user's habit is often put aside spray gun after using spray gun, and the paint vehicle in it is made virtually to dry up and be formed gradually Dirt, long-time service will cause paint vehicle outlet obstruction, and the rate for spraying paint vehicle, which has some setbacks, is easy to present liquid, and then wastes paint Material.

Utility model content

To solve the problems mentioned above in the background art.The utility model provides a kind of improvement knot of spray gun spray nozzle Structure there is spray head to be atomized paint vehicle completely, the more preferably uniform feature easy to clean of painting objects.

To achieve the above object, the utility model provides the following technical solutions: a kind of structure-improved of spray gun spray nozzle, including Spray gun, spray head, jet cap, thimble and paint vehicle, the outer surface of the front end of the spray gun are provided with the first external screw thread, before the spray gun The center at end is provided with the first internal screw thread, and the surrounding of first internal screw thread offers gas outlet, one end setting of the spray head There is the second external screw thread, second external screw thread is threadedly coupled with the first internal screw thread, and the other end of the spray head offers small ventilation Hole, the spray head are internally provided with thimble, and the center of the spray head other end is provided with mixing chamber, and the mixing chamber closes for ring Body, the surrounding of the ring closure offer air inlet, and the inner wall of the mixing chamber is provided with the second internal screw thread, spiral shell in described second The outer surface of line is pulled hole nut with hexagonal and is threadedly coupled, the hexagonal pull hole nut be put into center offer paint vehicle outlet, it is described Hexagonal, which is provided with, in paint vehicle outlet pulls hole.

One end of the jet cap is provided with lock ring blind nut, the inner surface of the lock ring blind nut and the first externally threaded appearance Face is threadedly coupled, and the center of the front end of the jet cap is provided with circular hole, and the surrounding of the circular hole offers jet aperture, described The inner wall of jet cap front end nose bar outstanding offers the puff prot of the perforation other end, is provided with trigger on the spray gun, described Paint vehicle outlet is connected with the inside of spray gun on jet cap, and paint vehicle exports the sky being connected with the inside of spray gun on the jet cap Between wait for spray booth for paint vehicle, the paint vehicle interior to be painted is provided with paint vehicle.

Preferably, the inside of the circular hole rear end is inner conical surface.

Preferably, the puff prot is the channel of compressed air.

Preferably, the spray head is located among spray gun and jet cap.

Compared with prior art, the utility model has the beneficial effects that

1, the utility model, paint vehicle can have secondary agitation program, keep the atomizing particle of paint vehicle more fine and smooth and spray more Uniformly, and the liquefied fraction of paint vehicle is reduced, saves paint vehicle.

2, the utility model is provided with air inlet on the mixing chamber of spray gun front end, can be with compressed air and with paint vehicle for the first time Stirring, not only can be such that in advance paint vehicle becomes uniformly, while flow rate of the paint vehicle in spray gun can be improved, reach low pressure height The environmentally friendly purpose of flow, and then its service speed is speeded, to maintain the high efficiency used.

3, the utility model, because the habit of user is different, to prevent from often putting spray gun after using spray gun It sets on one side, the paint vehicle in it is made virtually to dry up, then mix new paint vehicle again and continue to use, the paint vehicle exit of spray gun is caused to hinder It fills in, the front end of mixing chamber set by the spray head of the use of the new type is provided with hexagonal and pulls hole nut, pulls using die nut It moves its hexagonal to pull hole and disassemble, in order to the inside of cleaning sprayer, prolong its service life.

Detailed description of the invention

Attached drawing is used to provide a further understanding of the present invention, and constitutes part of specification, practical with this Novel embodiment is used to explain the utility model together, does not constitute limitations of the present invention.In the accompanying drawings:

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the parts explosion that spray gun often uses spray head in the utility model；

Fig. 3 is the schematic diagram of the section structure that spray gun often uses spray head in the utility model；

Fig. 4 is the solid and part amplification decomposition figure of the utility model；

Fig. 5 is the structural schematic diagram of the utility model neutral body amplification profile；

Fig. 6 is the structural schematic diagram of the amplification profile after assembling in the utility model；

In figure: 1, spray gun；11, gas outlet；12, the first internal screw thread；13, the first external screw thread；14, trigger；20, common spray Head；2, spray head；21, mixing chamber；211, hexagonal pulls hole nut；212, the second internal screw thread；213, air inlet；214, paint vehicle exports； 215, hexagonal pulls hole；22, paint vehicle waits for spray booth；23, small venthole；24, the second external screw thread；3, jet cap；31, puff prot；32, it sprays Gas aperture；33, lock ring blind nut；34, circular hole；4, thimble；5, paint vehicle.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Embodiment 1

Referring to Fig.2, a kind of spray gun spray nozzle, forms, wherein described including spray gun 1, common spray head 20 and jet cap 3 The outer surface of 1 front end of spray gun is provided with the first external screw thread 13, and the center chisel of 1 front end of spray gun is provided with the first internal screw thread 12, Gas outlet 11 is offered around first internal screw thread 12, one end of the common spray head 20 is provided with the second external screw thread 24, The outer surface of second external screw thread 24 is connect with the outer surface thread of the first internal screw thread 12, the front end face of the common spray head 20 It is provided with paint vehicle outlet 214, the venthole of ring week arrangement is provided with around the gas-blowing outlets, one end of the spray painting cap is set It is equipped with lock ring blind nut 33, the inner wall of the lock ring nut is connect with the outer surface thread of the first external screw thread 13, the jet cap 3 Front center is provided with circular hole 34, forms the conical surface inside rear end, the center of the front end of the jet cap 3 is provided with circular hole 34, institute The surrounding for stating circular hole 34 offers jet aperture 32, and it is another that the inner wall of 3 front end of jet cap nose bar outstanding offers perforation The puff prot 31 at end.

Refering to Fig. 3, when operating spray gun 1, which is made by being arranged in the intracorporal spring of spray gun 1 in its natural state Its move forward and withstand spray head 2 and material spray exports, and make air duct simultaneously at closing shape by addition interlocking machinery State, and while pulling trigger 14, then moves backward the thimble 4 to enable paint vehicle outlet 214 open, and makes other gearing machinery Air duct is opened, conveyed compressed air is arrived via the small venthole 23 on the gas outlet 11 of spray gun 1, common spray head 20 Puff prot 31, jet aperture 32 and circular hole 34 go out, and are formed by venturi principle by the flow at high speed of compressed air, so that paint It forms negative pressure at material outlet 214 and paint vehicle 5 is sucked out and simultaneously by the stirring of compressed air with being attracted, and simultaneously The compressed air sprayed by multiple tracks puff prot 31 rapidly sprays after it is atomized.

When installing common spray head 20 on spray gun 1, by the complete device of common spray head 20 inside the rear end of jet cap 3, Paint vehicle outlet 214 and small venthole 23 are directly connected with the circular hole 3434 on jet cap 3, and then enable compressed air by circular hole 34 with the ejection of sizable pressure, therefore, the work that there is the compressed air sprayed by puff prot 3131 accelerator paint vehicle 5 to be atomized With, but there is time enough to be sufficiently stirred because power is excessive without decree paint vehicle 5 and be atomized, make the water level when spraying of paint vehicle 5 Particle is relatively thick and is easy that liquid status is presented, and user must make 1 distance of spray gun be sprayed-on object plane does not cause spray to generate farther out Apparent spraying trace, but be easy to cause most paint vehicle 5 disperse it is insufficient, waste a large amount of paint vehicle 5, and do not meet Environmental requirement can directly make paint vehicle 5 pass through compressed air in addition, the material spray outlet that common spray head 20 is constituted is ring closure Attract and lead to extraneous channel, the channel distance is shorter, and the flow velocity of the paint vehicle 5 discharged by thimble 4 is slower, before the ejection of paint vehicle 5 There is no the structures that setting can be such that paint vehicle 5 stirs for the first time, and therefore, 5 particle of paint vehicle of ejection is thicker, furthermore, common spray head 20 Paint vehicle outlet 214 be ring closure, can not disassembly, cleaning, because user's habit after using spray gun 1 is often shelved spray gun 1 On one side, so that the paint vehicle 5 in it is virtually dried up and form dirt gradually, long-time service will cause 214 obstruction of paint vehicle outlet, make The rate that paint vehicle 5 sprays, which has some setbacks, is easy to present liquid, and then wastes paint vehicle 5, therefore common 20 device of spray head is in spray gun 1 Behaviour in service is not very good and disadvantage is more.

Embodiment 2

Refering to Fig. 4 and Fig. 5, a kind of structure-improved of spray gun spray nozzle, including spray gun 1, spray head 2, jet cap 3, thimble 4 and paint Material 5, the outer surface of the front end of the spray gun 1 is provided with the first external screw thread 13, and the center of 1 front end of spray gun is provided in first Screw thread 12, the surrounding of first internal screw thread 12 offer gas outlet 11, and one end of the spray head 2 is provided with the second external screw thread 24, second external screw thread 24 is threadedly coupled with the first internal screw thread 12, and the other end of the spray head 2 offers small venthole 23, The spray head 2 is internally provided with thimble 4, and the center of 2 other end of spray head is provided with mixing chamber 21, and the mixing chamber 21 is Ring closure, the surrounding of the ring closure offer air inlet 213, and the inner wall of the mixing chamber 21 is provided with the second internal screw thread 212, The outer surface of second internal screw thread 212 is pulled hole nut 211 with hexagonal and is threadedly coupled, and the hexagonal is pulled during hole nut 211 is put into Centre offers paint vehicle outlet 214, is provided with hexagonal in the paint vehicle outlet 214 and pulls hole 215.

One end of the jet cap 3 is provided with lock ring blind nut 33, the inner surface and the first external screw thread of the lock ring blind nut 33 13 outer surface thread connection, the center of the front end of the jet cap 3 are provided with circular hole 34, and the surrounding of the circular hole 34 offers Jet aperture 32, the inner wall of 3 front end of jet cap nose bar outstanding offer the puff prot 31 of the perforation other end, the spray gun Trigger 14 is provided on 1, paint vehicle outlet 214 is connected with the inside of spray gun 1 on the jet cap 3, paint vehicle on the jet cap 3 The space that outlet 214 is connected with the inside of spray gun 1 is that paint vehicle waits for that spray booth 22, the paint vehicle wait for being provided with paint vehicle 5 in spray booth 22, The thimble 4 can control its front and back reciprocal telescopic by trigger 14, for the headstock gear of paint vehicle outlet 214.

Refering to fig. 1, when installing spray head 2 on spray gun 1, when operating spray gun 1, thimble 4 is the shape for closing paint vehicle outlet 214 State when trigger 14 through pulling spray gun 1, moves backward thimble 4 and opens paint vehicle outlet 214, and pass through the gearing machine of spray gun 1 Structure opens air duct, and conveys compressed air via the gas outlet 11 of spray gun 1, the small venthole 23 of spray head 2, jet cap 3 Fumarole, jet aperture 32, jet aperture 32 and circular hole 34 and spray, wherein when compressed air passes through the small ventilation of spray head 2 When hole 23, the air inlet 213 of powerful wind-force channelling immediately to 21 ring body surrounding of mixing chamber arrow direction as shown in Figure 6, While thimble 4, which moves backward, makes paint vehicle 5 flow into mixing chamber 21, compressed air is contacted with paint vehicle 5 for the first time, powerful wind Speed forces paint vehicle 5 to roll and stir, and uniform state is presented because paint vehicle 5 is stirred for the first time to break up the molecule of paint vehicle 5, at this point, It is sprayed again via compressed air from the puff prot 31, jet aperture 32 and circular hole 34 of jet cap 3, passes through the high velocity stream of compressed air It is dynamic to be formed by venturi principle, make to form negative pressure at paint vehicle outlet 214 and spray the paint vehicle of mixing chamber 21 5 with being attracted Out, the moment sprayed in paint vehicle 5, compressed air, that is, secondary by 5 action of forced stirring of paint vehicle keep 5 molecule of paint vehicle more fine and smooth and more Uniformly, then by puff prot 31 the compressed air forceful action sprayed can be such that paint vehicle 5 is adequately atomized, because of the habit of user It is different, to prevent from often putting aside spray gun 1 after using spray gun 1, making the paint vehicle 5 in it virtually dry up, then New paint vehicle 5 is mixed again to continue to use, and is caused the paint vehicle of spray gun 1 to export at 214 and is blocked, set by the spray head 2 of the use of the new type The front end of mixing chamber 21 is provided with hexagonal and pulls hole nut 211, pulls its hexagonal using die nut and pulls hole 215 and disassemble, In order to the inside of cleaning sprayer 2, prolong its service life.

Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention, it is not limited to this Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art For, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic It is equivalently replaced.Within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on, It should be included within the scope of protection of this utility model.

Claims

1. in a kind of structure-improved of spray gun spray nozzle, including spray gun (1), spray head (2), jet cap (3), thimble (4) and paint vehicle (5), it is characterised in that: the outer surface of the front end of the spray gun (1) is provided with the first external screw thread (13), spray gun (1) front end Center be provided with the first internal screw thread (12), the surrounding of first internal screw thread (12) offers gas outlet (11), the spray head (2) one end is provided with the second external screw thread (24), and second external screw thread (24) is threadedly coupled with the first internal screw thread (12), described The other end of spray head (2) offers small venthole (23), and the spray head (2) is internally provided with thimble (4), the spray head (2) The center of the other end is provided with mixing chamber (21), the mixing chamber (21) be ring closure, the surrounding of the ring closure offer into The inner wall of stomata (213), the mixing chamber (21) is provided with the second internal screw thread (212), the appearance of second internal screw thread (212) Face is pulled hole nut (211) with hexagonal and is threadedly coupled, the hexagonal pull hole nut (211) be put into center offer paint vehicle outlet (214), hexagonal is provided in the paint vehicle outlet (214) pull hole (215)；

One end of the jet cap (3) is provided with lock ring blind nut (33), the inner surface and the first outer spiral shell of the lock ring blind nut (33) The outer surface thread of line (13) connects, and the center of the front end of the jet cap (3) is provided with circular hole (34), the circular hole (34) Surrounding offers jet aperture (32), and the inner wall of jet cap (3) front end nose bar outstanding offers the spray of the perforation other end Port (31) is provided with trigger (14) on the spray gun (1), paint vehicle outlet (214) and spray gun (1) on the jet cap (3) Inside is connected, and the space that paint vehicle outlet (214) is connected with the inside of spray gun (1) on the jet cap (3) is that paint vehicle is to be painted Room (22), the paint vehicle wait for being provided with paint vehicle (5) in spray booth (22).

2. a kind of structure-improved of spray gun spray nozzle according to claim 1, it is characterised in that: circular hole (34) rear end Inside is inner conical surface.

3. a kind of structure-improved of spray gun spray nozzle according to claim 1, it is characterised in that: the puff prot (31) is pressure The channel of contracting air.

4. a kind of structure-improved of spray gun spray nozzle according to claim 1, it is characterised in that: the spray head (2) is located at spray Rifle (1) and jet cap (3) are intermediate.