CN214717607U

CN214717607U - Atomizing spray gun

Info

Publication number: CN214717607U
Application number: CN202120260665.1U
Authority: CN
Inventors: 卢永发
Original assignee: Foshan Nanhai Prona Air Tool Manufacturing Ltd
Current assignee: Foshan Nanhai Prona Air Tool Manufacturing Ltd
Priority date: 2021-01-29
Filing date: 2021-01-29
Publication date: 2021-11-16
Anticipated expiration: 2031-01-29

Abstract

The utility model discloses an atomizing spray gun, which comprises a gun body, wherein a nozzle assembly is arranged on the gun body, a main through pipe is arranged in the gun body, the output end of the main through pipe is communicated with the nozzle assembly, an air input channel and a coating channel are also arranged on the gun body, and the air input channel and the coating channel are communicated with the main through pipe; a thimble is arranged in the main through pipe; a piston cavity is arranged at the rear side of the gun body; the thimble is of a hollow structure, and a thimble through hole is formed in the thimble; a thimble side hole is formed in the side edge of the thimble and is communicated with the piston cavity and the thimble through hole cavity; the hollow design of the ejector pin is used as an air pipe channel to directly convey air to the nozzle opening end, so that stronger paint pulling force is generated, and paint containing coarse particles or high-viscosity paint can be sprayed.

Description

Atomizing spray gun

Technical Field

The utility model relates to a spray gun technical field, especially an atomizing spray gun.

Background

At present, the main paint tension of a common spray gun is generated by matching a spray cover and a spray nozzle, and under the combined action of the internal structure and the part structure of the spray gun, the air pressure can generate a pressure reduction effect, so that the air flow is small, the pressure is reduced, the generated paint tension is low, and the spray gun is generally only suitable for spraying medium-low viscosity paint and cannot be used for spraying high-viscosity paint. Due to the structural principle of the whole spray gun, the traditional spray gun has small nozzle aperture and cannot spray the coating containing particles.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides an atomizing spray gun which is suitable for an automatic spray gun and a manual spray gun.

The utility model provides a technical scheme that its technical problem adopted is: the atomizing spray gun comprises a gun body, wherein a nozzle assembly is arranged on the gun body, a main through pipe is arranged in the gun body, the output end of the main through pipe is communicated with the nozzle assembly, an air input channel and a coating channel are also arranged on the gun body, and the air input channel and the coating channel are communicated with the main through pipe; a thimble is arranged in the main through pipe, the needle point of the thimble faces one side of the nozzle assembly and serves as the front side, and the needle tail of the thimble is opposite to one side of the nozzle assembly and serves as the rear side; a piston cavity is formed in the rear side of the gun body, the front side of the ejector pin is connected into the main through pipe in a penetrating mode, the rear side of the ejector pin is connected into the piston cavity in a penetrating mode, and the air input channel is communicated with the piston cavity; the thimble is of a hollow structure, a thimble through hole is arranged in the thimble and extends along the extension direction of the thimble, and the thimble through hole extends to the needle point of the thimble; the thimble side is provided with the thimble side opening, the thimble side opening with piston cavity, thimble through-hole cavity intercommunication.

According to the utility model provides an atomizing formula spray gun, the cavity design through adopting the thimble is as air pipe passageway, directly carries nozzle mouth end to the air to produce stronger coating pulling force, can the spraying contain coarse-grained material coating or high viscosity coating.

As some preferred embodiments of the utility model, nozzle assembly is including middle spout, the width of cloth air flue and the width of cloth angle of spouting, middle spout with the needle point of thimble corresponds, the width of cloth air flue with spout the width of cloth angle air input channel intercommunication, it is provided with the width of cloth spout on the width of cloth angle to spout.

As some preferred embodiments of the present invention, an auxiliary atomizing opening is provided between the middle nozzle and the amplitude nozzle.

As some preferred embodiments of the utility model, middle spout extension line with the angle is angle alpha between the spout width of cloth spout extension line, middle spout extension line with the angle is angle beta between the supplementary atomizing mouth extension line, alpha's value range is 50 degrees and is less than or equal to alpha 70 degrees, beta's value range is 10 degrees and is less than or equal to beta 20 degrees.

As some preferred embodiments of the utility model, be provided with middle spout toper constriction and middle spout annular constriction on the middle spout, the needle point position of thimble is provided with needle point toper constriction and needle point annular constriction, middle spout annular constriction with the cavity is the annular nozzle bore between the needle point annular constriction.

As some preferred embodiments of the utility model, be provided with on the air flue of spouting width of cloth and spout the adjust knob.

As some preferred embodiments of the present invention, the front side of the thimble is provided with a thimble sealing needle tip.

As some preferred embodiments of the utility model, main siphunculus with be provided with the portion of staying idle between the piston chamber, the portion of staying idle position in outside the rifle body, be provided with thimble fixation nut on the portion of staying idle.

As some preferred embodiments of the utility model, the main siphunculus rear side the piston chamber front side is provided with thimble compels piece respectively.

As some preferred embodiments of the utility model, be provided with paint vehicle control assembly on the piston chamber, paint vehicle control assembly including with rifle body rear end threaded connection's knob guide, adorn on the knob guide and with thimble complex thimble adjust knob, suit are in thimble spring on the thimble.

The utility model has the advantages that: the novel spray gun is specially improved in structure, the air nozzle is designed to be large in caliber, the novel spray gun can blow away coating containing particles or high-viscosity coating, the shape and the size of the spray amplitude can be freely adjusted, the novel spray gun is simple to operate, is suitable for coating in the aspects of emulsion paint, resin, mortar, fine plaster and the like, and can be applied to occasions such as spraying construction of inner and outer walls of buildings, road lines, ball particles and the like.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a perspective view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

fig. 3 is a schematic structural diagram of the present invention;

FIG. 4 is a cross-sectional view of another embodiment of the present invention;

fig. 5 is a cross-sectional view of a gun body according to another embodiment of the present invention;

FIG. 6 is a perspective view of the thimble, paint control assembly, etc. of the present invention;

fig. 7 is a sectional view of the thimble portion of the present invention.

Reference numerals:

gun body 100, main through pipe 110, air input channel 120, coating channel 130, piston cavity 140, hollow portion 150, nozzle assembly 200, middle nozzle 210, middle nozzle conical narrowing 211, middle nozzle annular narrowing 212, spray amplitude air channel 220, auxiliary atomizing port 221, spray amplitude angle 230, spray amplitude nozzle 231, thimble 300, thimble through hole 301, thimble side hole 302, thimble sealing needle point 310, needle point conical narrowing 311, needle point annular narrowing 312, thimble fixing nut 320, thimble packing 330, thimble guide 340, thimble packing 350, spray adjusting knob 400, paint control assembly 500, knob guide 510, thimble adjusting knob 520, thimble spring 530, control switch 600, and switch handle 610.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. Rather, the invention can be practiced without these specific details, i.e., those skilled in the art can more effectively describe the nature of their work to others skilled in the art using the description and illustrations herein. Furthermore, it should be noted that the terms "front side", "rear side", "left side", "right side", "upper side", "lower side", and the like used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from the geometric center of a specific part, respectively, and those skilled in the art should not understand that the technology beyond the scope of the present application is simply and innovatively adjustable in the directions. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. Well-known manufacturing methods, control procedures, component dimensions, material compositions, pipe arrangements, etc., have not been described in detail since they are readily understood by those of ordinary skill in the art, in order to avoid obscuring the present invention.

Fig. 1 is a perspective view of an embodiment of the present invention, referring to fig. 1, an embodiment of the present invention provides an atomizing spray gun, including a gun body 100, a nozzle assembly 200 is provided on the gun body 100, a main pipe 110 is provided in the gun body 100, an output end of the main pipe 110 is communicated with the nozzle assembly 200, and corresponds to a muzzle of the atomizing spray gun of the nozzle assembly 200 for spraying paint and paint, and also corresponds to an air nozzle for spraying air. The gun body 100 is also provided with an air input passage 120 and a paint passage 130. The paint passage 130 communicates with the main pipe 110 for injecting paint and varnish.

Further, referring to fig. 2, a needle 300 is disposed in the main tube 110, a needle tip of the needle 300 faces the nozzle assembly 200 and serves as a front side, and a needle tail of the needle 300 faces the nozzle assembly 200 and serves as a rear side. The thimble 300 is movable in the front-rear direction. I.e., the tip of the thimble 300 is directed to the front side.

Still further, a piston cavity 140 is provided at the rear side of the gun body 100, the front side of the thimble 300 penetrates into the main through pipe 110, the rear side of the thimble 300 penetrates into the piston cavity 140, and the air input channel 120 is communicated with the piston cavity 140.

Still further, the thimble 300 is a hollow structure, a thimble through hole 301 is arranged in the thimble 300, the thimble through hole 301 extends along the extending direction of the thimble 300, and the thimble through hole 301 extends to the needle point of the thimble 300 to be used as an air nozzle, so that the air nozzle can be designed to have a larger caliber.

Still further, a thimble side hole 302 is formed in a side of the thimble 300, and the thimble side hole 302 is communicated with the cavity of the piston cavity 140 and the cavity of the thimble through hole 301.

In actual operation, the coating and the paint enter the main through pipe 110 from the coating passage 130, and the amount of the paint is controlled by controlling the stroke of the needle point of the thimble 300 from the port of the middle nozzle 210, and the specific coating and the paint are sprayed out from a position between the outer side of the thimble 300 and the inner side of the main through pipe 110. The air enters from the air input channel 120, passes through the piston cavity 140, the thimble side hole 302 and the thimble through hole 301 in sequence, and is finally ejected from the needle point of the thimble 300.

The above-disclosed atomizing spray gun is only a preferred embodiment of the present invention, and is only used for illustrating the technical solution of the present invention, not limiting the same. It will be understood by those skilled in the art that the foregoing technical solutions may be modified or supplemented by the prior art, or some of the technical features may be replaced by equivalents; and such modifications or substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention.

Reference will now be made in detail to some embodiments, wherein "an embodiment" is referred to herein as a particular feature, structure, or characteristic that may be included in at least one implementation of the present application. The appearances of the phrase "in an embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Furthermore, the details representative of one or more embodiments are not fixedly presented in any particular order, nor are they intended to be limiting of the present invention.

In embodiment 1, the paint channel 130 is located on the upper side of the gun body 100 and the air input channel 120 is located on the lower side of the gun body 100.

Example 2, referring to fig. 3, nozzle assembly 200 includes a middle nozzle 210, a swath air path 220, and a swath angle 230. Intermediate nozzle 210 corresponds to the tip of spike 300. The nozzle air passage 220 communicates with the nozzle angle 230 and the air supply passage 120. The spray horn 230 is provided with a spray nozzle 231 as a vent for controlling the length of the spray to discharge air, and mainly has an atomization effect.

In this embodiment, the spray angle 230 is optionally located on the left and right sides of the nozzle assembly 200.

In embodiment 3, an auxiliary atomizing port 221 is disposed between the middle nozzle 210 and the amplitude nozzle 231, and is mainly used for scattering the middle paint ejected from the middle nozzle 210 in the atomizing process, and for assisting in controlling the uniformity of the atomizing surface and performing an auxiliary atomizing function.

In embodiment 4, the angle between the extension line of the middle nozzle 210 and the extension line of the amplitude-spraying nozzle 231 is α, the angle between the extension line of the middle nozzle 210 and the extension line of the auxiliary atomizing orifice 221 is β, α is greater than or equal to 50 ° and less than or equal to 70 °, β is greater than or equal to 10 ° and less than or equal to 20 °, and the atomizing effect is better.

In this embodiment, optionally, the ratio of the aperture of the nozzle orifice 231 to the aperture of the middle nozzle orifice 210 is 2: 1-4: 1.

embodiment 5, the middle nozzle 210 is provided with a middle nozzle tapered narrowing portion 211 and a middle nozzle annular narrowing portion 212, the needle tip of the thimble 300 is provided with a needle tip tapered narrowing portion 311 and a needle tip annular narrowing portion 312, and the cavity between the middle nozzle tapered narrowing portion 212 and the needle tip annular narrowing portion 312 is an annular nozzle hole, so that the paint outlet effect is better.

Example 6, the thimble 300 and the nozzle assembly 200 are made of stainless steel, and are suitable for water-based, oil-based or latex paint.

In example 7, the atomizing spray gun is an automatic spray gun, and the air input passage 120 is connected to an external air pipe through a joint to introduce air.

In embodiment 8, referring to fig. 4 and 5, the atomizing spray gun is a manual spray gun, and the gun body 100 is provided with a switch handle 610. The air input passage 120 is provided with a control switch 600. The switch handle 610 is coupled to the control switch 600 so that a user can control the switch of the spray gun by controlling the switch handle 610.

In this embodiment, the grip handle and switch handle 610 are located on the underside of the gun body 100.

In embodiment 9, the air duct 220 is provided with the air adjusting knob 400 for controlling the air intake of the air duct 220.

In embodiment 10, referring to fig. 6 and 7, a spike sealing tip 310 is disposed on the front side of the spike 300. The needle sealing tip 310 can be replaced as required, and the sealing between the needle sealing tip 310 and the needle 300 is required to ensure the spraying effect.

In embodiment 11, a hollow portion 150 is provided between the main through pipe 110 and the piston cavity 140, the hollow portion 150 is located outside the gun body 100, and the hollow portion 150 is provided with a thimble fixing nut 320. Namely, the main through pipe 110 and the piston 140 are relatively independent, so that the spraying effect can be improved. The thimble fixing nut 320 improves the installation stability of the thimble 300, and the thimble fixing nut 320 does not fix the thimble 300, so as to avoid the deflection of the thimble 300 during the movement.

In the embodiment 12, the rear side of the main through pipe 110 and the front side of the piston cavity 140 are respectively provided with the thimble packing pieces 330 as sealing pieces to avoid air and paint leakage.

In embodiment 13, the thimble 300 is provided with a thimble guide 340 for guiding the moving direction of the thimble 300.

Example 14, referring to fig. 6, paint control assembly 500 is disposed in piston cavity 140 to control the amount of paint that is delivered, i.e., the travel of the tip of spike 300 from the port of intermediate spout 210. Paint control assembly 500 includes a knob guide 510 threadedly coupled to the rear end of the gun body, a spike adjustment knob 520 mounted on knob guide 510 and engaged with a spike, and a spike spring 530 mounted on spike 300. By rotating the ejector pin adjusting knob 520 mounted on the knob guide 510, the ejector pin adjusting knob 520 compresses the ejector pin spring 530, and the ejector pin adjusting knob 520 drives the ejector pin 300, i.e., the stroke of the needle point of the ejector pin 300 from the port of the middle nozzle 210 is controlled to be reduced or increased, so that the stroke of the ejector pin 300 from the port of the middle nozzle 210 is controlled, and the paint discharge amount of paint is controlled.

In the embodiment 15, the piston cavity 140 is provided with the needle clamping seat 350, and the needle clamping member 330 at the front side of the piston cavity 140 is installed on the needle clamping seat 350 to cooperate with the needle spring 530.

In embodiment 16, the distance between the end of the needle adjusting knob 520 and the needle clamping seat 350 is reduced or increased by compressing the needle spring 530 by the needle adjusting knob 520, so as to control the stroke of the needle clamping seat 350, thereby controlling the paint yield more precisely.

According to the above principle, the present invention can also make appropriate changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should fall within the protection scope of the claims of the present invention.

Claims

1. The utility model provides an atomizing spray gun, includes the rifle body (100), be provided with nozzle assembly (200) on the rifle body (100), be provided with main siphunculus (110) in the rifle body (100), the output of main siphunculus (110) with nozzle assembly (200) intercommunication, still be provided with air input channel (120) and coating passageway (130) on the rifle body (100), coating passageway (130) with main siphunculus (110) intercommunication, its characterized in that:

a thimble (300) is arranged in the main through pipe (110), the needle point of the thimble (300) faces one side of the nozzle component (200) and serves as the front side, and the needle tail of the thimble (300) is opposite to one side of the nozzle component (200) and serves as the rear side;

a piston cavity (140) is formed in the rear side of the gun body (100), the front side of the ejector pin (300) penetrates into the main through pipe (110), the rear side of the ejector pin (300) penetrates into the piston cavity (140), and the air input channel (120) is communicated with the piston cavity (140);

the thimble (300) is of a hollow structure, a thimble through hole (301) is arranged in the thimble (300), the thimble through hole (301) extends along the extension direction of the thimble (300), and the thimble through hole (301) extends to the needle point of the thimble (300);

the side of the thimble (300) is provided with a thimble side hole (302), and the thimble side hole (302) is communicated with the cavity of the piston cavity (140) and the cavity of the thimble through hole (301).

2. An atomizing spray gun as set forth in claim 1, wherein: the nozzle assembly (200) comprises a middle nozzle (210), a spray amplitude air passage (220) and a spray amplitude angle (230), the middle nozzle (210) corresponds to the needle point of the thimble (300), the spray amplitude air passage (220) is communicated with the spray amplitude angle (230) and the air input channel (120), and the spray amplitude angle (230) is provided with a spray amplitude nozzle (231).

3. An atomizing spray gun as set forth in claim 2, wherein: an auxiliary atomizing opening (221) is arranged between the middle nozzle (210) and the spray amplitude nozzle (231).

4. An atomizing spray gun as set forth in claim 3, wherein: the angle between the extension line of the middle nozzle (210) and the extension line of the amplitude spraying nozzle (231) is less than alpha, the angle between the extension line of the middle nozzle (210) and the extension line of the auxiliary atomizing port (221) is less than beta, the value range of alpha is more than or equal to 50 degrees and less than or equal to 70 degrees, and the value range of beta is more than or equal to 10 degrees and less than or equal to 20 degrees.

5. An atomizing spray gun as set forth in claim 2, wherein: the middle nozzle (210) is provided with a middle nozzle conical narrowing portion (211) and a middle nozzle annular narrowing portion (212), the needle point position of the thimble (300) is provided with a needle point conical narrowing portion (311) and a needle point annular narrowing portion (312), and a cavity between the middle nozzle annular narrowing portion (212) and the needle point annular narrowing portion (312) is an annular nozzle hole.

6. An atomizing spray gun as set forth in claim 2, wherein: and a spraying adjusting knob (400) is arranged on the spraying amplitude air passage (220).

7. An atomising spray gun as claimed in claim 1 or 5, in which: the front side of the thimble (300) is provided with a thimble sealing needle point piece (310).

8. An atomizing spray gun as set forth in claim 1, wherein: a hollow part (150) is arranged between the main through pipe (110) and the piston cavity (140), the hollow part (150) is positioned outside the gun body (100), and a thimble fixing nut (320) is arranged on the hollow part (150).

9. An atomising spray gun as claimed in claim 1 or 8, in which: and the rear side of the main through pipe (110) and the front side of the piston cavity (140) are respectively provided with a thimble packing piece (330).

10. An atomizing spray gun as set forth in claim 1, wherein: the paint control assembly (500) is arranged on the piston cavity (140), and the paint control assembly (500) comprises a knob guide seat (510) in threaded connection with the rear end of the gun body, an ejector pin adjusting knob (520) arranged on the knob guide seat (510) and matched with the ejector pin, and an ejector pin spring (530) sleeved on the ejector pin (300).