CN221536998U - External mixing spray gun - Google Patents
External mixing spray gun Download PDFInfo
- Publication number
- CN221536998U CN221536998U CN202322814438.0U CN202322814438U CN221536998U CN 221536998 U CN221536998 U CN 221536998U CN 202322814438 U CN202322814438 U CN 202322814438U CN 221536998 U CN221536998 U CN 221536998U
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- CN
- China
- Prior art keywords
- liquid
- inlet pipe
- pipe
- air
- flow channel
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- 239000007921 spray Substances 0.000 title claims abstract description 30
- 239000007788 liquid Substances 0.000 claims abstract description 159
- 239000012530 fluid Substances 0.000 claims description 11
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000003973 paint Substances 0.000 abstract description 27
- 239000007789 gas Substances 0.000 description 42
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 29
- 238000000576 coating method Methods 0.000 description 18
- 239000011248 coating agent Substances 0.000 description 14
- 229910052757 nitrogen Inorganic materials 0.000 description 10
- 229910001873 dinitrogen Inorganic materials 0.000 description 9
- 239000012535 impurity Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000003734 kidney Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
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- Nozzles (AREA)
Abstract
The application discloses an external mixing spray gun, and relates to the technical field of spray guns. An external mixing spray gun comprises a gun body, wherein a nozzle is arranged at one end of the gun body, a liquid flow channel and a gas flow channel are arranged in the gun body, one end of the liquid flow channel extends to the nozzle and is formed into a liquid outlet, one end of the gas flow channel also extends to the nozzle and is formed into a gas outlet, and the direction of the liquid outlet is intersected with the direction of the gas outlet; the gun body is also provided with a liquid inlet pipe and an air inlet pipe, the liquid inlet pipe is communicated with the liquid flow channel, and the air inlet pipe is communicated with the air flow channel. The application can make the sprayed paint as uniform as possible.
Description
Technical Field
The application relates to the field of spray guns, in particular to an external mixing spray gun.
Background
The spray gun refers to a device capable of spraying liquid, the spray gun is generally divided into a common pressure type spray gun and a pressurized type spray gun at present, and the spray gun is applied in the fields of building decoration and automobile manufacturing, namely, paint is sprayed by utilizing pressure.
The current discloses a spray gun, it includes the rifle body that has the passageway inside and the rifle head of being connected with the rifle body, is equipped with the nozzle with the passageway intercommunication in the rifle head, can make nozzle blowout liquid through letting in liquid into the passageway.
With respect to the related art in the above, the inventors consider that there are the following drawbacks: the paint sprayed by the spray gun is not uniform enough, and the paint is thin after the paint surface is painted, which can lead to the sprayed paint surface not meeting the factory requirements.
Disclosure of utility model
In order to make the sprayed coating as uniform as possible, the application provides an external mixing spray gun.
The application provides an external mixing spray gun which adopts the following technical scheme:
An external mixing spray gun comprises a gun body, wherein a nozzle is arranged at one end of the gun body, a liquid flow channel and a gas flow channel are arranged in the gun body, one end of the liquid flow channel extends to the nozzle and is formed into a liquid outlet, one end of the gas flow channel also extends to the nozzle and is formed into a gas outlet, and the direction of the liquid outlet is intersected with the direction of the gas outlet; the gun body is also provided with a liquid inlet pipe and an air inlet pipe, the liquid inlet pipe is communicated with the liquid flow channel, and the air inlet pipe is communicated with the air flow channel.
Through adopting above-mentioned technical scheme, through letting in liquid coating to the feed liquor pipe and let in compressed nitrogen to the intake pipe, liquid coating passes through flow channel and reachs the liquid outlet and discharges, and compressed nitrogen reachs the gas outlet through flow channel simultaneously and discharges and collide from liquid outlet exhaust liquid coating, liquid coating can collide the breakage by compressed nitrogen and atomize, and atomized coating can be comparatively even attach on the face that needs the coating.
In a specific embodiment, the air outlet is a kidney shaped opening.
In a specific implementation manner, the plurality of waist-shaped openings are arranged on the nozzle, each waist-shaped opening is communicated with the air flow channel, and the plurality of waist-shaped openings are distributed along the circumferential direction of the liquid outlet.
Through adopting above-mentioned technical scheme, a plurality of waist shape mouth spun compressed nitrogen gas that distributes along the liquid outlet circumferencial direction can make liquid coating by broken more even.
In a specific embodiment, the nozzle is removably connected to the gun body.
By adopting the technical scheme, the nozzle can have scale after long-time use, and the nozzle can be disassembled to clean the scale.
In a specific implementation mode, the liquid inlet pipe is connected with a liquid flow pipe, the liquid flow pipe is communicated with the liquid inlet pipe, and a liquid filter disc is arranged in the liquid flow pipe; the air inlet pipe is connected with an air flow pipe, the air flow pipe is communicated with the air inlet pipe, and a gas filter disc is arranged in the air flow pipe.
By adopting the technical scheme, the liquid filter sheet can filter impurities in liquid in the liquid flow pipe, and the gas filter sheet can filter impurities in gas in the gas flow pipe.
In a specific embodiment, the liquid flow pipe is provided with a fluid control member for controlling the flow of fluid in the liquid flow pipe, and the gas flow pipe is provided with a gas control member for controlling the flow of gas in the gas flow pipe.
By adopting the technical scheme, the driving fluid control piece can control the on/off of the fluid in the liquid flow pipe and control the fluid flow; the driving gas control piece can control the on and off of the gas in the gas flow pipe and control the gas flow.
In a specific implementation manner, the end part of the liquid flow pipe, which is far away from the liquid inlet pipe, is further provided with a liquid mixing part, the liquid mixing part comprises a plurality of liquid mixing ports penetrating to two ends, and each liquid mixing port is communicated with the inside of the liquid flow pipe.
Through adopting above-mentioned technical scheme, can let in a liquid coating to every mix the liquid mouth in, a plurality of liquid mouthfuls of mix can let in multiple different liquid coating, and multiple different liquid coating can mix in the liquid flow pipe is inside.
In a specific embodiment, both the liquid flow tube and the gas flow tube have deformability.
By adopting the technical scheme, the shapes of the liquid flow pipe and the air flow pipe can be adjusted to adapt to the actual installation environment.
In summary, the present application includes at least one of the following beneficial technical effects:
1. Through introducing liquid paint into the liquid inlet pipe and compressed nitrogen into the air inlet pipe, the liquid paint reaches the liquid outlet through the liquid flow channel and is discharged, meanwhile, the compressed nitrogen reaches the air outlet through the air flow channel and is discharged, the liquid paint is impacted and crushed by the compressed nitrogen to be atomized, and the atomized paint can be uniformly attached to the surface needing paint;
2. The liquid filter sheet can filter impurities in liquid in the liquid flow pipe, and the gas filter sheet can filter impurities in gas in the gas flow pipe;
3. The liquid coating can be introduced into each liquid mixing port, a plurality of liquid mixing ports can be introduced with a plurality of different liquid coatings, and the liquid coatings can be mixed in the liquid flow pipe.
Drawings
Fig. 1 is a schematic view of the overall structure of an external mixing spray gun according to an embodiment of the present application.
Fig. 2 is a cross-sectional view for embodying the internal structure of the gun body.
Fig. 3 is a schematic view of a structure for embodying a nozzle.
Fig. 4 is a schematic diagram of a structure for embodying a liquid mixing member.
Reference numerals illustrate: 1. a gun body; 11. a flow channel; 12. an air flow channel; 2. a nozzle; 21. a liquid outlet; 22. an air outlet; 3. a liquid inlet pipe; 31. a liquid flow tube; 311. a liquid filter sheet; 312. a fluid control member; 32. a liquid mixing piece; 321. a liquid mixing port; 4. an air inlet pipe; 41. a gas flow tube; 411. a gas filter sheet; 412. a gas control member; 5. and (5) a screw.
Detailed Description
The present application will be described in further detail with reference to the accompanying drawings.
The embodiment of the application discloses an external mixing spray gun. For atomizing the liquid coating so that the sprayed coating is as uniform as possible.
Referring to fig. 1 and 2, the external mixing spray gun comprises a gun body 1, a nozzle 2 is arranged at the right end of the gun body 1, a liquid flow channel 11 and a gas flow channel 12 are arranged in the gun body 1, one end of the liquid flow channel 11 extends to the nozzle 2 and forms a liquid outlet 21, one end of the gas flow channel 12 also extends to the nozzle 2 and forms a gas outlet 22, the direction of the liquid outlet 21 is intersected with the direction of the gas outlet 22, and the structure is used for ensuring that after liquid paint is introduced into the liquid flow channel 11, the gas introduced into the gas flow channel 12 can be ejected and collide with the liquid paint; the gun body 1 is also provided with a liquid inlet pipe 3 and an air inlet pipe 4, the liquid inlet pipe 3 is communicated with a liquid flow channel 11, and the air inlet pipe 4 is communicated with an air flow channel 12.
Referring to fig. 2 and 3, specifically, the air outlet 22 is a kidney-shaped opening, which is provided on the nozzle 2, and each kidney-shaped opening is communicated with the air flow channel 12, and the kidney-shaped openings are uniformly distributed along the circumferential direction of the liquid outlet 21.
The air inlet pipe 4 can be filled with steam or compressed nitrogen, and in the embodiment of the application, the compressed nitrogen is taken as an example: first, it is necessary to introduce a liquid paint into the liquid inlet pipe 3 and a compressed nitrogen gas into the air inlet pipe 4, the liquid paint reaches the liquid outlet 21 through the liquid flow passage 11 and is discharged, and at the same time, the compressed nitrogen gas reaches the plurality of waist-shaped openings through the gas flow passage 12 and discharges the liquid paint which is collided and discharged from the liquid outlet 21, and the liquid paint is collided and crushed by the compressed nitrogen gas to be atomized.
Referring to fig. 1 and 2, in order to facilitate the introduction of liquid paint into the liquid inlet pipe 3 and compressed nitrogen into the air inlet pipe 4 in an actual environment, the liquid inlet pipe 3 is connected with a liquid flow pipe 31, and the liquid flow pipe 31 is communicated with the liquid inlet pipe 3; the air inlet pipe 4 is connected with an air flow pipe 41, and the air flow pipe 41 is communicated with the air inlet pipe 4; the liquid flow pipe 31 and the gas flow pipe 41 have deformability, and specifically, the liquid flow pipe 31 and the gas flow pipe 41 are rubber hoses, and rubber has better deformability and high temperature resistance.
Referring to fig. 1 and 2, in order to facilitate the filtration of impurities in the liquid paint and the filtration of impurities in the compressed nitrogen, a liquid filter sheet 311 is provided in the liquid flow pipe 31, a gas filter sheet 411 is provided in the gas flow pipe 41, the liquid filter sheet 311 is preferably a PP filter sheet, and the gas filter sheet 411 is preferably an activated carbon filter sheet. The nozzle 2 may scale after long-time use, in order to remove the scale, the nozzle 2 is detachably connected with the gun body 1, and in particular, the nozzle 2 is connected with the gun body 1 by a screw 5.
Referring to fig. 1 and 2, in order to control the flow rate of the liquid paint and the flow rate of the compressed nitrogen gas, the liquid flow pipe 31 is provided with a fluid control member 312 for controlling the flow of the fluid in the liquid flow pipe 31, the fluid control member 312 is preferably a ball valve, and the gas flow pipe 41 is provided with a gas control member 412 for controlling the flow of the gas in the gas flow pipe 41, and the gas control member 412 is preferably a shut-off valve.
When the amount of liquid paint ejected from the liquid outlet 21 is too large to be completely broken by the compressed nitrogen gas, the flow control member 312 may be driven to reduce the flow rate of the liquid paint.
Referring to fig. 1 and 4, in some occasions, it is necessary to mix and spray a plurality of different kinds of liquid coatings, in order to facilitate the introduction and mixing of a plurality of different kinds of liquid coatings, a liquid mixing member 32 is further disposed at the end of the liquid flow tube 31 remote from the liquid inlet tube 3, and the liquid mixing member 32 includes a plurality of liquid mixing ports 321 penetrating to two ends, and each liquid mixing port 321 is communicated with the inside of the liquid flow tube 31. In addition, the liquid mixing member 32 is engaged with the liquid flow pipe 31, and the liquid mixing member 32 can be detached when it is not necessary to mix a plurality of different liquid paints.
The implementation principle of the external mixing spray gun provided by the embodiment of the application is as follows: first, it is necessary to introduce a liquid paint into the liquid inlet pipe 3 and a compressed nitrogen gas into the air inlet pipe 4, the liquid paint reaches the liquid outlet 21 through the liquid flow passage 11 and is discharged, and at the same time, the compressed nitrogen gas reaches the plurality of waist-shaped openings through the gas flow passage 12 and discharges the liquid paint which is collided and discharged from the liquid outlet 21, and the liquid paint is collided and crushed by the compressed nitrogen gas to be atomized.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (8)
1. An external mixing spray gun, characterized in that: the novel gun comprises a gun body (1), wherein a nozzle (2) is arranged at one end of the gun body (1), a liquid flow channel (11) and an air flow channel (12) are arranged in the gun body (1), one end of the liquid flow channel (11) extends to the nozzle (2) and is formed into a liquid outlet (21), one end of the air flow channel (12) also extends to the nozzle (2) and is formed into an air outlet (22), and the direction of the liquid outlet (21) is intersected with the direction of the air outlet (22); the gun body (1) is also provided with a liquid inlet pipe (3) and an air inlet pipe (4), the liquid inlet pipe (3) is communicated with the liquid flow channel (11), and the air inlet pipe (4) is communicated with the air flow channel (12).
2. The external mixing spray gun of claim 1, wherein: the air outlet (22) is a waist-shaped opening.
3. The external mixing spray gun of claim 2, wherein: the waist-shaped openings are arranged on the nozzle (2), each waist-shaped opening is communicated with the air flow channel (12), and the waist-shaped openings are distributed along the circumferential direction of the liquid outlet (21).
4. The external mixing spray gun of claim 1, wherein: the nozzle (2) is detachably connected with the gun body (1).
5. The external mixing spray gun of claim 1, wherein: the liquid inlet pipe (3) is connected with a liquid flow pipe (31), the liquid flow pipe (31) is communicated with the liquid inlet pipe (3), and a liquid filter sheet (311) is arranged in the liquid flow pipe (31); the air inlet pipe (4) is connected with an air flow pipe (41), the air flow pipe (41) is communicated with the air inlet pipe (4), and an air filter sheet (411) is arranged in the air flow pipe (41).
6. The external mixing spray gun of claim 5, wherein: the liquid flow pipe (31) is provided with a fluid control member (312) for controlling the flow of fluid in the liquid flow pipe (31), and the air flow pipe (41) is provided with a gas control member (412) for controlling the flow of gas in the air flow pipe (41).
7. The external mixing spray gun of claim 6, wherein: the end part of the liquid flow pipe (31) far away from the liquid inlet pipe (3) is further provided with a liquid mixing part (32), the liquid mixing part (32) comprises a plurality of liquid mixing ports (321) penetrating through the liquid mixing ports to the two ends, and each liquid mixing port (321) is communicated with the inside of the liquid flow pipe (31).
8. The external mixing spray gun of claim 5, wherein: the liquid flow tube (31) and the gas flow tube (41) each have a deformability.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322814438.0U CN221536998U (en) | 2023-10-19 | 2023-10-19 | External mixing spray gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322814438.0U CN221536998U (en) | 2023-10-19 | 2023-10-19 | External mixing spray gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221536998U true CN221536998U (en) | 2024-08-16 |
Family
ID=92224676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322814438.0U Active CN221536998U (en) | 2023-10-19 | 2023-10-19 | External mixing spray gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221536998U (en) |
-
2023
- 2023-10-19 CN CN202322814438.0U patent/CN221536998U/en active Active
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| GR01 | Patent grant |