Atomizing spray gun

Abstract

The utility model relates to the technical field of spray guns, in particular to an atomizing spray gun which comprises a gun body assembly, an atomizing material pot, a fixing nut, a nozzle assembly and an atomizing air cap, the nozzle assembly and the atomizing air cap are sequentially arranged on one side of the gun body assembly, and the nozzle assembly and the atomizing air cap are tightly pressed on the gun body assembly through the fixing nut. A conical nozzle part is arranged in the middle of the nozzle assembly, an atomization center opening matched with the nozzle part is formed in the middle of the atomization hood, and two atomization protruding blocks are symmetrically arranged on the side, away from the nozzle assembly, of the atomization hood; two U-shaped atomization auxiliary grooves are symmetrically formed in the outer side of the atomization center opening, gas is sprayed out of the atomization center opening and the atomization auxiliary grooves to atomize liquid sprayed out of the spraying head part, through outer atomization spraying holes are symmetrically formed in the two atomization protruding blocks, the included angle formed by the axes of the two outer atomization spraying holes is X, and X is larger than or equal to 30 degrees and smaller than or equal to 100 degrees. According to the scheme, the structure is simple, the use is convenient, and circular and fan-shaped scatter point suppression during atomization can be effectively assisted.

Description

TECHNICAL FIELD

[0001] The utility model relates to spray gun technical field especially atomizing spray gun. BACKGROUND

[0002] Spray gun is a kind of equipment using liquid or compressed air as power, and it is divided into two kinds of general pressure type and pressurized type, when the compressed air generated by air compressor is sprayed out through the air cap in front of spray gun, a low pressure area lower than atmospheric pressure is generated in front of the paint nozzle connected with it. The pressure difference generated at the spray gun mouth absorbs paint from the paint tank, and under the action of high-speed jet force of compressed air, the paint is atomized into particles and sprayed on the surface of the coated object.

[0003] The utility model discloses a spray gun atomization width adjusting control structure discloses a kind of spray gun atomization width adjusting control structure, including gun body, fixed nut, containing space, nozzle assembly, air cap assembly and control component;Nozzle assembly includes air door plate, nozzle, door plate air passage;Air cap assembly includes atomization air cap, through-hole, air passage;Control component includes amplitude dialing block, atomization air cap is installed with amplitude spray block, amplitude spray block and atomization air cap are connected by elastic member, amplitude dialing block is equipped with guide surface, amplitude spray block is equipped with guide surface, by forming assembly by installing amplitude spray block in atomization air cap, atomization air cap and amplitude spray block are connected by elastic member, so that the initial state of amplitude spray block is pre-pressed, and initial fixed angle is formed, then the guide surface on amplitude dialing block is rotated to drive the guide surface of amplitude spray block, to make amplitude spray block rotation angle movement change, change the angle and position change of atomization air duct, and then control the atomization width size of the liquid being sprayed, but the spray capacity of the spray gun in prior art is relatively not enough uniform, and the spray point cannot be inhibited, thereby affecting its spraying effect. SUMMARY

[0004] To solve the above-mentioned problems of the spray pot, the utility model provides a kind of atomizing spray gun, and the specific technical scheme is as follows:

[0005] The utility model provides an atomization spray gun, including gun body assembly, atomization material pot, fixed nut, nozzle assembly and atomization cap, the atomization material pot is installed on the gun body assembly, the nozzle assembly and atomization cap are sequentially arranged on the one side of gun body assembly, and the fixed nut is pressed to the nozzle assembly and atomization cap on the gun body assembly, and the middle part of nozzle assembly is provided with the conical spray head, the middle part of atomization cap is provided with the atomization center mouth that is in accord with spray head, and two atomization bosses are symmetrically arranged on the side of atomization cap away from nozzle assembly, the outside of atomization center mouth is symmetrically provided with two U-shaped atomization auxiliary grooves, and the liquid that is sprayed from spray head is atomized by the gas that sprays from atomization center mouth and atomization auxiliary groove, and the included angle that is formed by the axis of two outer atomization spray holes is X, and 30 DEG ≤X ≤100 DEG.

[0006] In some embodiments, the outer atomization spray hole is a waist round hole.

[0007] In some embodiments, the X is 75 DEG.

[0008] In some embodiments, the inner side of the atomization cap is provided with a conical air guide groove, the narrow end of the air guide groove is communicated to the atomization center mouth, the spray head is embedded in the air guide groove, and the taper of the air guide groove is greater than the taper of the spray head.

[0009] In some embodiments, the nozzle assembly is provided with a bevel air collecting port, and the bevel air collecting port is communicated to the outer atomization spray hole.

[0010] In some embodiments, the side end face of the spray head away from the gun body assembly is a first end face, the side of the atomization cap away from the gun body assembly is a second end face, and the first end face protrudes from the second end face.

[0011] In some embodiments, the distance by which the first end face protrudes from the second end face is Y, and 0mm < Y ≤ 1mm.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] Firstly, the utility model is provided with two U-shaped atomization auxiliary grooves on the outside of the atomization center mouth, the gas sprays from the atomization center mouth and the atomization auxiliary grooves to atomize the liquid sprayed from the spray head, and the atomization auxiliary grooves can effectively assist in inhibiting the circular and fan-shaped scattered points during atomization.

[0014] Secondly, the two atomization protrusions are symmetrically provided with through outer atomization nozzles, the included angle formed by the axes of the two outer atomization nozzles is X, 30°≤X≤100°, the intersection point of the axes of the two outer atomization nozzles is spaced apart from the nozzle part by 10mm-25mm, and the intersection point is preferably spaced apart from the nozzle part by 18mm, so as to improve the atomization effect of the spray gun.

[0015] Thirdly, the inner side of the atomization air cap is provided with a tapered air guide groove, the narrow end of the air guide groove is communicated with the atomization center port, the nozzle part is embedded in the air guide groove, the high-pressure gas is delivered to the center air guide channel through the inner side of the gun body assembly and discharged from the air guide groove, the air guide groove is tapered to guide, pressurize and release the gas, and the taper of the air guide groove is greater than the taper of the nozzle part, so as to improve the gathering effect of the air guide groove on the high-pressure gas, efficiently concentrate the air volume and air speed, make the air channel more smooth, avoid the air pressure from vertically impacting the atomization air cap to generate resistance, cause wind energy loss and generate back air noise.

[0016] Fourthly, the nozzle assembly is provided with a beveled air collecting port, the beveled air collecting port is communicated with the shaped air guide channel and the outer atomization nozzle, the high-pressure gas is delivered to the beveled air collecting port through the inner side of the gun body assembly, the gas flow is gathered through the beveled air collecting port and then delivered to the outer atomization nozzle through the shaped air guide channel for spraying, the beveled air collecting port is arranged to gather the high-pressure gas, efficiently concentrate the air volume and air speed, make the air channel more smooth, avoid the air pressure from vertically impacting the atomization air cap to generate resistance, cause wind energy loss and generate back air noise.

[0017] Fifthly, the side end face of the nozzle part away from the gun body assembly is a first end face, the side of the atomization air cap away from the gun body assembly is a second end face, the first end face protrudes from the second end face, the distance by which the first end face protrudes from the second end face is Y, 0mm﹤Y≤1mm, and Y is preferably 0.5mm, so as to improve the atomization effect of the nozzle assembly on the liquid. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the application;

[0019] Figure 2 is a schematic diagram of the overall structure of the application;

[0020] Figure 3 is a schematic diagram of the overall structure of the application;

[0021] Figure 4 is a schematic diagram of the overall structure of the application;

[0022] Figure 5 is a schematic diagram of the overall structure of the application;

[0023] Figure 6 is a cross-sectional view of the atomizing cap and nozzle assembly in the application when assembled;

[0024] Figure 7 is a schematic diagram of the gas flow direction of the gun body assembly in use.

[0025] Reference signs: gun body assembly 1, atomizing material pot 2, fixing nut 3, nozzle assembly 4, spray head part 41, first end face 411, bevel wind collecting port 42, atomizing cap 5, atomizing center port 51, atomizing protrusion 52, outer atomizing spray hole 521, atomizing auxiliary groove 53, air guide groove 54, second end face 55. DETAILED DESCRIPTION

[0026] The embodiments of the present disclosure will be described in further detail below with reference to the drawings and examples. The detailed description and drawings of the following examples are used to exemplarily illustrate the principles of the present disclosure, but cannot be used to limit the scope of the present disclosure, and the present disclosure can be implemented in many different forms, and is not limited to the specific examples disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0027] The present disclosure provides these examples in order to make the present disclosure thorough and complete, and to fully express the scope of the present disclosure to those skilled in the art. It should be noted that: unless otherwise specified, the relative arrangement of components and steps, the composition of materials, numerical expressions and values set forth in these examples should be interpreted as merely exemplary, and not as a limitation.

[0028] It should be noted that, in the description of the present disclosure, unless otherwise specified, the meaning of "a plurality of" is greater than or equal to two; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer" and the like is only for the purpose of facilitating the description of the present disclosure and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present disclosure. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0029] In addition, "first", "second", and similar words used in the present disclosure do not indicate any order, number, or importance, but are only used to distinguish different parts. "Vertical" is not strictly vertical, but within the allowable range of error. "Parallel" is not strictly parallel, but within the allowable range of error. "Include" or "contain" and similar words mean that the elements before the word cover the elements listed after the word, and do not exclude the possibility of also covering other elements.

[0030] It should be noted that, in the description of the present disclosure, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integrally connected; can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances. When it is described that a specific device is located between a first device and a second device, there can be or can not be an intermediate device between the specific device and the first device or the second device.

[0031] All the terms used in the present disclosure have the same meaning as understood by those skilled in the art to which the present disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted to have meanings consistent with their meanings in the context of the relevant art, and should not be interpreted in an idealized or excessively formalized sense, unless specifically defined herein.

[0032] Techniques, methods, and devices known to those skilled in the relevant art can not be discussed in detail, but in appropriate cases, the techniques, methods, and devices should be considered as part of the specification.

[0033] As shown in Figures 1 to 7 An atomizing spray gun, comprising a gun body assembly 1, an atomizing bucket 2, a fixing nut 3, a nozzle assembly 4 and an atomizing cap 5, the atomizing bucket 2 is mounted on the gun body assembly 1, the nozzle assembly 4 and the atomizing cap 5 are sequentially arranged on one side of the gun body assembly 1, the fixing nut 3 is used to press the nozzle assembly 4 and the atomizing cap 5 tightly on the gun body assembly 1, a conical spray head 41 is arranged in the middle of the nozzle assembly 4, a conical atomizing center hole 51 is arranged in the middle of the atomizing cap 5, two atomizing protrusions 52 are symmetrically arranged on the side of the atomizing cap 5 away from the nozzle assembly 4, a plurality of gear recesses are arranged at equal intervals on the outer ring of the nozzle assembly 4, a plurality of elastic protrusions are arranged on the atomizing cap 5 and match the gear recesses, a positioning ring is arranged on the nozzle assembly 4 in the axial direction, a positioning protrusion is arranged on the atomizing cap 5 and matches the positioning ring, a central air passage is arranged in the inner ring of the nozzle assembly 4, and a shaping air passage is arranged in the outer ring of the nozzle assembly 4, the atomizing cap 5 and the nozzle assembly 4 are pressed tightly on the gun body assembly 1 by rotating the fixing nut 3, a panel on the nozzle assembly 4 is attached to the gun body assembly 1, the spray head 41 is embedded in the atomizing center hole 51, the elastic protrusions are embedded in the gear recesses, and the positioning ring is embedded on the positioning protrusion.

[0034] In some embodiments, the outside of the atomization center port 51 is symmetrically provided with two U-shaped atomization auxiliary grooves 53, and the gas is sprayed from the atomization center port 51 and the atomization auxiliary grooves 53 to atomize the liquid sprayed from the nozzle head 41. The atomization auxiliary grooves 53 can effectively assist in inhibiting the circular and fan-shaped scattering points during atomization.

[0035] In some embodiments, as shown in Figure 5 The two atomization protrusions 52 are symmetrically provided with through external atomization spray holes 521, the axes of the two external atomization spray holes 521 form an included angle X, 30°≤X≤100°, and the intersection of the axes of the two external atomization spray holes 521 is spaced apart from the nozzle head 41 by 10mm-25mm, and the intersection of the axes of the two external atomization spray holes 521 is preferably spaced apart from the nozzle head 41 by 18mm, so as to improve the atomization effect of the spray gun.

[0036] In some embodiments, the external atomization spray hole 521 is a waist round hole, so as to improve the atomization effect of the spray gun.

[0037] In some embodiments, the inside of the atomization air cap 5 is provided with a tapered air guide groove 54, the narrow end of the air guide groove 54 is communicated to the atomization center port 51, and the nozzle head 41 is embedded in the air guide groove 54. The high-pressure gas is delivered to the center air guide through the inside of the gun body assembly 1 and discharged from the air guide groove 54. The air guide groove 54 is tapered, and the taper of the air guide groove 54 is greater than the taper of the nozzle head 41, so as to improve the gathering effect of the air guide groove 54 on the high-pressure gas, efficiently concentrate the air volume and air speed, make the air guide more smooth, avoid the vertical impact of the air pressure on the atomization air cap 5 to generate resistance, cause wind energy loss, and generate backwind noise.

[0038] In some embodiments, the nozzle assembly 4 is provided with a beveled air collecting port 42, the beveled air collecting port 42 is communicated to the shaped air guide and the external atomization spray hole 521, the high-pressure gas is delivered to the beveled air collecting port 42 through the inside of the gun body assembly 1, and the air flow is gathered through the beveled air collecting port 42 and then delivered to the external atomization spray hole 521 through the shaped air guide to be sprayed out. The beveled air collecting port 42 has a gathering effect on the high-pressure gas, efficiently concentrates the air volume and air speed, makes the air guide more smooth, avoids the vertical impact of the air pressure on the atomization air cap 5 to generate resistance, causes wind energy loss, and generates backwind noise.

[0039] In some embodiments, as shown in Figure 6As shown, the side end face of the spray head part 41 away from the gun body assembly 1 is a first end face 411, the side of the atomizing air cap 5 away from the gun body assembly 1 is a second end face 55, the first end face 411 protrudes from the second end face 55, the distance by which the first end face 411 protrudes from the second end face 55 is Y, 0mm < Y ≤ 1mm, wherein Y is preferably set to 0.5mm, so as to be able to spray the liquid by the nozzle assembly 4.

[0040] The technical principles of the present application are described above in combination with specific embodiments. These descriptions are only for explaining the principles of the present application, and cannot be interpreted in any way as a limitation on the protection scope of the present application. Based on the explanations herein, other specific embodiments of the present application can be conceived by those skilled in the art without requiring creative efforts, and these embodiments will all fall within the protection scope of the claims of the present application.

Claims

1. An atomizing spray gun, comprising a gun body assembly (1), an atomizing bucket (2), a fixing nut (3), a nozzle assembly (4) and an atomizing cap (5), the atomizing bucket (2) is installed on the gun body assembly (1), the nozzle assembly (4) and the atomizing cap (5) are sequentially arranged on one side of the gun body assembly (1), the fixing nut (3) presses the nozzle assembly (4) and the atomizing cap (5) to the gun body assembly (1), a middle part of the nozzle assembly (4) is provided with a tapered spray head (41), a middle part of the atomizing cap (5) is provided with an atomizing center port (51) matched with the spray head (41), two atomizing protrusions (52) are symmetrically arranged on a side of the atomizing cap (5) away from the nozzle assembly (4). characterized in that Two U-shaped atomizing auxiliary grooves (53) are symmetrically arranged on the outside of the atomizing center port (51), gas is sprayed from the atomizing center port (51) and the atomizing auxiliary grooves (53) to atomize liquid sprayed from the spray head (41), two through outer atomizing spray holes (521) are symmetrically arranged on the atomizing protrusions (52), and an included angle formed by the axes of the two outer atomizing spray holes (521) is X, 30°≤X≤100°.

2. The atomizing lance of claim 1, wherein The outer atomizing spray hole (521) is a waist round hole.

3. The atomizing lance of claim 1, wherein, The X is 75°.

4. The atomizing lance of claim 1, wherein, A tapered air guide groove (54) is arranged on the inside of the atomizing cap (5), the air guide groove (54) is connected to the atomizing center port (51) at a narrow end, the spray head (41) is embedded in the air guide groove (54), and the taper of the air guide groove (54) is greater than the taper of the spray head (41).

5. The atomizing lance of claim 1, wherein, An inclined edge air collecting port (42) is arranged on the nozzle assembly (4), and the inclined edge air collecting port (42) is connected to the outer atomizing spray hole (521).

6. The atomizing lance of claim 1, wherein, An end face of the spray head (41) away from the gun body assembly (1) is a first end face (411), a side of the atomizing cap (5) away from the gun body assembly (1) is a second end face (55), and the first end face (411) protrudes from the second end face (55).

7. The atomizing lance of claim 6, wherein A distance by which the first end face (411) protrudes from the second end face (55) is Y, 0mm﹤Y≤1mm.

8. The atomizing lance of claim 7, wherein, The Y is 0.5mm.

Images