CN218167406U - Air atomization spray gun driven by air - Google Patents
Air atomization spray gun driven by air Download PDFInfo
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- CN218167406U CN218167406U CN202221679840.1U CN202221679840U CN218167406U CN 218167406 U CN218167406 U CN 218167406U CN 202221679840 U CN202221679840 U CN 202221679840U CN 218167406 U CN218167406 U CN 218167406U
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Abstract
The utility model discloses an air atomization spray gun driven by air, which comprises a spray gun main body, a thimble assembly, a gas spring and a nozzle assembly; a gas pipeline and a liquid pipeline are arranged in the spray gun main body, and a cylinder cavity for mounting a thimble assembly is arranged in the spray gun main body; the air pressure spring is arranged in the air cylinder cavity, one end of the air pressure spring acts on the ejector pin assembly, and the other end of the air pressure spring acts on the spray gun main body; the elasticity of the gas spring promotes the thimble assembly to block the liquid cap of the nozzle assembly; the spray gun main body is further provided with an air pressure channel which is used for driving the ejector pin assembly to overcome the elastic force of an air pressure spring to move so as to open a liquid cap of the nozzle assembly, and the air pressure channel is communicated with the air pipeline. Through the improvement, the structure of the air atomization spray gun is favorable for simplification, and the manufacturing cost is reduced.
Description
Technical Field
The utility model relates to an air spray gun, concretely relates to through air drive's air atomization spray gun.
Background
Due to the high importance of the nation on energy conservation and environmental protection and the requirement of the nation on high-quality living environment, the production requirement on the air atomization spray gun is higher and higher. The problem of general feedback in the cylinder manufacture process of air atomizing spray gun in the existing market is: the air cylinder has a complex structure, various parts are adopted, and each part has a processing procedure belonging to the air cylinder, so that the production procedure of the air atomization spray gun is complicated, the manufacturing cost is high, the assembly difficulty is high, and the lean production requirement is difficult to meet. Therefore, it is necessary to simplify the structure of the air atomizing spray gun as much as possible and reduce the number of parts and manufacturing cost of the air atomizing spray gun on the premise of achieving the function of the air atomizing spray gun.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide an air atomization spray gun through air drive, air atomization spray gun's structure is simpler, and manufacturing cost is lower.
The utility model provides an above-mentioned technical problem's technical scheme be:
an air atomization spray gun driven by air comprises a spray gun main body, a thimble assembly, a gas spring and a nozzle assembly, wherein the thimble assembly, the gas spring and the nozzle assembly are arranged in the spray gun main body; the liquid pipeline is communicated with a liquid inlet hole arranged on the spray gun main body; a cylinder cavity for mounting the ejector pin assembly is arranged in the spray gun main body; the air pressure spring is arranged in the air cylinder cavity, one end of the air pressure spring acts on the ejector pin assembly, and the other end of the air pressure spring acts on the spray gun main body; the elasticity of the gas spring prompts the thimble assembly to block the liquid cap of the nozzle assembly; the spray gun main body is further provided with an air pressure channel which is used for driving the ejector pin assembly to overcome the elastic force of the air pressure spring to move so as to open the liquid cap of the nozzle assembly, wherein the air pressure channel is communicated with the air pipeline.
Preferably, the spray gun main body comprises a body and an adjusting threaded sleeve connected with the body, wherein a cavity is arranged in the adjusting threaded sleeve, and the cavity forms one part of the cylinder cavity; the cavity on the body forms the other part of the cylinder cavity; wherein the gas spring is arranged in a cavity of the adjusting screw sleeve; the nozzle assembly is mounted on the body.
Preferably, the body is provided with an external thread, and the adjusting screw sleeve is provided with an internal thread matched with the external thread.
Preferably, a step surface is arranged in the adjusting threaded sleeve, correspondingly, a step surface is also arranged at a position, close to the adjusting threaded sleeve, in the body, and a cavity between the step surfaces forms a limiting cavity for limiting the movement stroke of the ejector pin assembly.
Preferably, a filter screen is arranged in the adjusting threaded sleeve.
Preferably, the thimble assembly comprises a movable thimble, a bushing, a split washer and a plurality of sealing rings.
Preferably, the sealing rings are O-shaped sealing rings and are three groups, and are used for preventing liquid from entering the cylinder cavity.
Preferably, the air inlet hole and the liquid inlet hole are symmetrically arranged on two sides of the spray gun main body close to the nozzle assembly.
Preferably, the inner diameter of the cylinder cavity is larger than the outer diameter of the ejector pin assembly.
The utility model discloses a theory of operation through air drive's air atomization spray gun is:
when the ejector pin assembly works, liquid is injected into the ejection gun main body through the liquid pipeline, compressed air is introduced into the ejection gun main body through the gas pipeline, and part of the compressed air entering the ejection gun main body enters the air pressure channel and is used for pushing the ejector pin assembly to move so as to open a liquid cap of the nozzle assembly; and part of the compressed air moves along the gas pipeline and is mixed with liquid in a gas-liquid mixing cavity in the nozzle assembly, and the nozzle assembly ejects the mixed water vapor in a water mist mode. When the spray size needs to be adjusted, the injection amount of compressed air can be reduced, so that the pressure of the compressed air entering the air channel is smaller than the elastic force of the gas spring, the ejector pin assembly can slowly approach the liquid cap of the nozzle assembly under the elastic force of the gas spring, the liquid channel in the liquid cap is reduced, correspondingly, the liquid entering the gas-liquid mixing cavity is reduced, and the spray amount is reduced; conversely, the spray amount can be increased. Besides the above-mentioned adjustment method, the force of the gas spring on the thimble assembly can be adjusted by adjusting the compression amount of the gas spring, so as to adjust the distance between the thimble assembly and the liquid cap of the nozzle assembly, and thus the spray size can also be adjusted.
Compared with the prior art, the utility model following beneficial effect has:
1. the air atomization spray gun of the utility model communicates the air channel and the air pipeline, and drives the thimble assembly by using part of the compressed air entering the spray gun main body, thereby opening the liquid cap in the nozzle assembly (i.e. separating the thimble in the thimble assembly from the liquid channel of the liquid cap); compare in the tradition to the air atomization spray gun of gas pipeline and gas passage independent setting, the utility model discloses an air atomization spray gun's structure and manufacturing process are simpler, and manufacturing cost is lower.
2. Compared with the traditional air atomization spray gun, the air atomization spray gun of the utility model has the advantages that the manufacturing process is reduced, the number of parts is reduced, and the internal structure is simpler, thus not only reducing the difficulty of processing and assembling; and because the structure is simpler, consequently the utility model discloses an air atomization spray gun makes more easily in process of production and changes the maintenance.
Drawings
Fig. 1 is a schematic structural view of the air atomization spray gun driven by air according to the present invention.
Fig. 2 is a partially enlarged view of a portion a in fig. 1.
Fig. 3 is a schematic view of the direction of delivery of gas and liquid through an air-driven air atomization spray gun of the present invention, wherein the bold arrows indicate the direction of flow of the liquid.
Detailed Description
The present invention will be described in further detail with reference to the following examples and drawings, but the present invention is not limited thereto.
Referring to fig. 1 to 3, the air atomization spray gun driven by air of the present invention includes a spray gun main body, a thimble assembly 1 disposed in the spray gun main body, a gas spring 2 and a nozzle assembly 3, wherein a gas pipe 4 and a liquid pipe 5 are disposed inside the spray gun main body, wherein the gas pipe 4 is communicated with an air inlet 6 disposed on the spray gun main body; the liquid pipeline 5 is communicated with a liquid inlet hole 7 arranged on the spray gun main body; the air inlet 6 and the liquid inlet 7 are symmetrically arranged on two sides of the spray gun main body close to the nozzle assembly 3; a cylinder cavity for mounting the thimble assembly 1 is arranged in the spray gun main body; the air pressure spring 2 is arranged in the air cylinder cavity, one end of the air pressure spring 2 acts on the ejector pin component 1, and the other end of the air pressure spring acts on the spray gun main body; the elasticity of the gas spring 2 urges the thimble assembly 1 to block the liquid cap of the nozzle assembly 3; the spray gun main body is further provided with an air pressure channel 12 which is used for driving the thimble assembly 1 to move against the elastic force of the air pressure spring 2 so as to open the liquid cap of the nozzle assembly 3, and the air pressure channel 12 is communicated with the air pipeline 4.
Referring to fig. 1-3, the spray gun main body comprises a main body 8 and an adjusting threaded sleeve 11 connected with the main body 8, wherein a cavity is arranged in the adjusting threaded sleeve 11, and the cavity forms one part of the cylinder cavity; the cavity on the body 8 forms the other part of the cylinder cavity; wherein, the gas spring 2 is arranged in the cavity of the adjusting screw sleeve 11; the nozzle assembly 3 is mounted on the body 8; in addition, the body 8 is provided with an external thread, and the adjusting screw sleeve 11 is provided with an internal thread matched with the external thread. By adopting the structure, the following advantages are achieved:
(1) The ejector pin assembly 1 and the air pressure spring 2 are convenient to assemble; before assembly, the adjusting threaded sleeve 11 is detached, the thimble assembly 1 is arranged in a cavity in the body 8, then the air pressure spring 2 is sleeved on the thimble assembly 1, and finally the adjusting threaded sleeve 11 is installed, so that one end of the air pressure spring 2 is abutted against the adjusting threaded sleeve 11, and the other end of the air pressure spring is abutted against the thimble assembly 1; through the installation mode, the installation steps can be simplified, and the assembly efficiency is improved.
(2) The compression amount of the gas spring 2 can be adjusted by adjusting the adjusting screw sleeve 11, so that the pressing force of the ejector pin component 1 on the nozzle component 3 is adjusted, the distance between the ejector pin component 1 and the liquid cap of the nozzle component 3 can be adjusted, and the size of the spray is adjusted.
Referring to fig. 1-3, be provided with step face 9 in adjusting swivel nut 11, it is corresponding, 8 internal being close to adjust swivel nut 11 department also is provided with step face 9, and the cavity that is located between both step faces 9 constitutes and is used for right the movement stroke of thimble assembly 1 carries out spacing chamber, through other part collisions in the spray gun main part of thimble assembly 1 are avoided to spacing chamber, and then can play the effect of the spare part in the protection spray gun main part, thereby prolong the utility model discloses an air atomization spray gun's life.
Referring to fig. 1-3, a filter screen 10 is arranged in the adjusting screw sleeve 11.
Referring to fig. 1-3, the thimble assembly 1 includes a movable thimble, a bushing, a split washer, and a plurality of seal rings, wherein the seal rings are O-ring seals (for preventing liquid from flowing into the cylinder cavity), and are in three groups; the structure and connection relationship of the thimble assembly 1 in this embodiment can be implemented by referring to the existing thimble assembly 1.
Referring to fig. 1-3, the inner diameter of the cylinder cavity is larger than the outer diameter of the ejector pin assembly 1, so as to ensure that the ejector pin assembly 1 moves forward and backward smoothly during ventilation and air shutoff.
Referring to fig. 1-3, the nozzle assembly 3 in the present embodiment may be implemented with reference to existing nozzles.
Referring to fig. 1-3, the working principle of the air atomization spray gun driven by air of the present invention is:
when the spray gun is in operation, liquid is injected into the spray gun main body through the liquid pipeline 5, compressed air is introduced into the spray gun main body through the gas pipeline 4, and part of the compressed air entering the spray gun main body enters the air pressure channel 12 and is used for pushing the ejector pin assembly 1 to move so as to open a liquid cap of the nozzle assembly 3; and part of the compressed air moves along the gas pipeline 4 and is mixed with liquid in a gas-liquid mixing cavity in the nozzle assembly 3, and the nozzle assembly 3 sprays the mixed water vapor in a water mist mode. When the spray size needs to be adjusted, the injection amount of the compressed air can be reduced, so that the pressure of the compressed air entering the air channel 12 is smaller than the elastic force of the gas spring 2, the ejector pin assembly 1 can slowly approach the liquid cap of the nozzle assembly 3 under the elastic force of the gas spring 2, the liquid channel in the liquid cap is reduced, correspondingly, the liquid entering the gas-liquid mixing cavity is reduced, and the spray amount is reduced; conversely, the spray amount can be increased. In addition to the above-mentioned adjustment method, the amount of compression of the gas spring 2 may be adjusted to adjust the force of the gas spring 2 on the needle assembly 1, and further adjust the distance between the needle assembly 1 and the liquid cap of the nozzle assembly 3, so as to adjust the size of the spray.
The above is the preferred embodiment of the present invention, but the embodiment of the present invention is not limited by the above, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.
Claims (9)
1. An air atomization spray gun driven by air is characterized by comprising a spray gun main body, a thimble assembly, a gas spring and a nozzle assembly, wherein the thimble assembly, the gas spring and the nozzle assembly are arranged in the spray gun main body; the liquid pipeline is communicated with a liquid inlet hole arranged on the spray gun main body; a cylinder cavity for mounting the ejector pin assembly is arranged in the spray gun main body; the air pressure spring is arranged in the air cylinder cavity, one end of the air pressure spring acts on the ejector pin assembly, and the other end of the air pressure spring acts on the spray gun main body; the elasticity of the gas spring prompts the thimble assembly to block the liquid cap of the nozzle assembly; the spray gun main body is further provided with an air pressure channel which is used for driving the ejector pin assembly to overcome the elastic force of the air pressure spring to move so as to open the liquid cap of the nozzle assembly, wherein the air pressure channel is communicated with the air pipeline.
2. The air-driven atomizing spray gun of claim 1 wherein said spray gun body includes a body and an adjusting threaded insert connected to said body, wherein said adjusting threaded insert defines a cavity therein, said cavity forming a portion of said cylinder cavity; the cavity on the body forms the other part of the cylinder cavity; wherein the gas spring is arranged in a cavity of the adjusting screw sleeve; the nozzle assembly is mounted on the body.
3. The air-driven atomizing spray gun of claim 2 wherein said body is provided with external threads and said adjusting nut has internal threads thereon for mating with said external threads.
4. The air-driven atomizing spray gun according to claim 3, wherein said adjusting nut has a stepped surface formed therein, and correspondingly, a stepped surface is formed in said body at a position close to said adjusting nut, and a cavity between said stepped surfaces forms a limiting cavity for limiting the movement stroke of said ejector pin assembly.
5. The air-driven air atomizing spray gun of claim 3 wherein said adjusting nut has a filter screen disposed therein.
6. The air-driven atomizing spray gun of claim 1 wherein said pin assembly includes a movable pin, a bushing, a circlip, and a plurality of seals.
7. The air-driven air atomizing spray gun of claim 6 wherein said seals are O-ring seals and are in three sets for preventing liquid from entering said cylinder chamber.
8. The air-driven atomizing spray gun of claim 1 wherein said air inlet and said liquid inlet are symmetrically disposed in said spray gun body adjacent both sides of said nozzle assembly.
9. The air-driven atomizing spray gun of claim 1 wherein said cylinder cavity has an inner diameter greater than an outer diameter of said spike assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221679840.1U CN218167406U (en) | 2022-06-30 | 2022-06-30 | Air atomization spray gun driven by air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221679840.1U CN218167406U (en) | 2022-06-30 | 2022-06-30 | Air atomization spray gun driven by air |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218167406U true CN218167406U (en) | 2022-12-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221679840.1U Active CN218167406U (en) | 2022-06-30 | 2022-06-30 | Air atomization spray gun driven by air |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218167406U (en) |
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2022
- 2022-06-30 CN CN202221679840.1U patent/CN218167406U/en active Active
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