CN213255175U - Nozzle connecting structure of spray gun - Google Patents
Nozzle connecting structure of spray gun Download PDFInfo
- Publication number
- CN213255175U CN213255175U CN202021967091.3U CN202021967091U CN213255175U CN 213255175 U CN213255175 U CN 213255175U CN 202021967091 U CN202021967091 U CN 202021967091U CN 213255175 U CN213255175 U CN 213255175U
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- Prior art keywords
- nozzle
- flow channel
- annular boss
- spray
- gas flow
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- 239000007921 spray Substances 0.000 title claims abstract description 57
- 238000007789 sealing Methods 0.000 claims abstract description 13
- 238000009423 ventilation Methods 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims description 33
- 238000013022 venting Methods 0.000 claims description 6
- 238000005406 washing Methods 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 abstract 1
- 238000005507 spraying Methods 0.000 description 5
- 230000006872 improvement Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007592 spray painting technique Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The utility model discloses a nozzle connection structure of spray gun, include: the gas flow separation device comprises a gun body, a nozzle and a spray head, wherein a first gas flow passage, a second gas flow passage and a first annular boss for isolating the two gas flow passages are arranged on the gun body; a second annular boss is arranged in the spray head, the second annular boss is connected with the spray nozzle in a sealing mode, and a first ventilation cavity is formed between the second annular boss and the spray nozzle; the first gas flow channel, the flow dividing air hole and the first ventilation cavity are communicated with each other to form a main gas flow channel; and a second air vent cavity is formed between the second annular boss and the inner wall of the spray head, and the second air flow channel is communicated with the second air vent cavity to form an auxiliary air flow channel. The utility model relates to a nozzle connection structure of spray gun need not reuse the splitter plate, and convenient the washing, and the assembly is simple, practices thrift the cost.
Description
Technical Field
The utility model relates to a spray gun field, in particular to nozzle connection structure of spray gun.
Background
The spray gun is a tool for spraying various liquids with low viscosity into mist, is frequently used in the aspects of house decoration, automobile spray painting and the like, and has very wide application. With the development of the technology, in order to reduce the labor intensity of users, more suitable for the requirements of family working environment and improve the spraying quality, the pneumatic spray gun is gradually accepted by the public.
A nozzle connecting structure of a conventional spray gun (as shown in fig. 1) generally comprises a gun body 100, a nozzle 200, a spray head 300 and a splitter 400, wherein an air flow in the gun body 100 is separated into two paths by the splitter 400, and one path flows out through an air hole on the nozzle 200 and an air cavity between the nozzle 200 and the spray head 300; one path flows out through a gap formed between the outside of the nozzle 200 and the head 300. Although the two paths of gas separated by the splitter 400 can form sprayed paint into a better fog shape, the splitter 400 structure can cause the splitter to be a consumable product in the using and cleaning process, and the splitter needs to be replaced frequently and is inconvenient to clean; meanwhile, the assembly is troublesome, the production efficiency is reduced, and the cost is increased.
Disclosure of Invention
In order to solve the technical problem, the utility model provides a nozzle connection structure of spray gun utilizes rifle body head processing structure cooperation nozzle guide air reposition of redundant personnel, need not reuse the splitter plate, and convenient the washing assembles simply, practices thrift the cost, improves production efficiency.
The utility model discloses a solve the technical scheme that its technical problem adopted and be: a spray nozzle connection for a spray gun, comprising: the spray head is arranged at the head of the gun body, the spray nozzle is arranged between the spray head and the gun body, a first gas flow passage and a second gas flow passage are arranged on the gun body and are separated by a first annular boss, a first liquid flow passage is arranged on the spray nozzle along the axis, an annular groove is arranged on one side of the spray nozzle facing the gun body, a plurality of flow distribution air holes are arranged between the first liquid flow passage and the annular groove, and the annular groove is hermetically connected with the first annular boss; a second annular boss is arranged in the spray head, the second annular boss is connected with the spray nozzle in a sealing mode, and a first ventilation cavity is formed between the second annular boss and the spray nozzle; the first gas flow channel, the flow dividing air hole and the first ventilation cavity are communicated with each other to form a main gas flow channel; and a second air vent cavity is formed between the second annular boss and the inner wall of the spray head, and the second air flow channel is communicated with the second air vent cavity to form an auxiliary air flow channel.
As a further improvement, the first liquid flow path end circumference outside is provided with first inclined plane, the internal second liquid flow path that is provided with first liquid flow path switches on of rifle, be provided with the second inclined plane on the second liquid flow path, first inclined plane with second inclined plane sealing connection to with two liquid flow paths with main air current passageway mutual isolation.
As a further improvement of the present invention, a nozzle bushing is installed between the first liquid flow passage and the second liquid flow passage.
As a further improvement of the utility model, the nozzle is followed the reposition of redundant personnel gas pocket outside is provided with third annular boss, third annular boss with second annular boss sealing connection.
As a further improvement, the nozzle is provided with a plurality of main air holes and a plurality of auxiliary air holes, the main air holes all communicate with the main airflow channel, the auxiliary air holes all communicate with the auxiliary airflow channel.
The utility model has the advantages that: the utility model provides a nozzle connection structure of spray gun, through the annular groove with the nozzle and the first annular boss sealing connection of the rifle body, the third annular boss of nozzle and the second annular boss sealing connection of shower nozzle, and be provided with the reposition of redundant personnel gas pocket on the nozzle, form from this by first gas runner, the main air current passageway that reposition of redundant personnel gas pocket and first air cavity communicate each other and constitute, and the second gas runner, space between the nozzle outside and the rifle body, second air cavity communicates each other and constitutes vice air current passageway, can reach and form better spraying effect, utilize rifle body head structure cooperation nozzle guide air reposition of redundant personnel, the splitter need not be reused, convenient washing, the assembly is simple, and the cost is saved, and the production efficiency is improved.
Drawings
FIG. 1 is a schematic structural view of a prior art nozzle connection;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is an enlarged view of A in FIG. 2 according to the present invention;
FIG. 4 is a perspective view of the nozzle of the present invention;
fig. 5 is a cross-sectional view of the nozzle of the present invention;
fig. 6 is a schematic structural view of the gun body of the present invention;
wherein the direction indicated by the arrow in fig. 3 is the direction of the air flow.
The following description is made with reference to the accompanying drawings:
1-gun body; 101-first gas flow path;
102-second gas flow channel; 103-a first annular boss;
104-second liquid flow path; 2-nozzle;
201-first liquid flow path; 2011 — first ramp;
202-annular groove; 203-split vent;
204 — a third annular boss; 3-spray head;
301-second annular boss; 302-first venting lumen;
303-a second venting chamber; 304-main gas hole;
305-secondary air holes; 4-nozzle bushing;
wherein, the following are the reference numbers indicated by the background art shown in fig. 1:
100-gun body; 200-a nozzle;
300-spray head; 400-splitter plate.
Detailed Description
The following description of the preferred embodiments of the present invention will be made in conjunction with the accompanying drawings.
Referring to fig. 2 to 6, the present invention provides a nozzle connecting structure of a spray gun, including: the spray gun comprises a gun body 1, a spray nozzle 2 and a spray head 3, wherein the spray head 3 is arranged at the head part of the gun body 1, and the spray nozzle 2 is nested in the spray head 3 and is positioned between the spray head 3 and the gun body 1.
Referring to fig. 3 to 6, the gun body 1 is provided with a first gas flow passage 101 and a second gas flow passage 102, and the first gas flow passage 101 and the second gas flow passage 102 are separated by a first annular boss 103. The nozzle 2 is provided with a first liquid flow passage 201 along an axis, and an ejection hole is provided at a front end of the first liquid flow passage 201. An annular groove 202 is formed in one side, facing the gun body 1, of the nozzle 2, a plurality of flow dividing air holes 203 are formed between the first liquid flow channel 201 and the annular groove 202 at equal intervals in an annular mode along the axis, and the annular groove 202 is connected with the first annular boss 103 in a sealing mode. A second annular boss 301 is arranged in the spray head 3, a third annular boss 204 is arranged on one side of the spray nozzle 2 facing the spraying direction along the outer side of the flow dividing air hole 203, the third annular boss 204 is connected with the second annular boss 301 in a sealing mode, and a first ventilation cavity 302 is formed between the second annular boss 301 and the spray nozzle 2. The first gas flow path 101, the branch gas holes 203 and the first ventilation chamber 302 are communicated with each other to form a main gas flow path. A second air venting cavity 303 is formed between the second annular boss 301 and the inner wall of the spray head 3, and the second air channel 102, a gap formed between the outer side of the spray nozzle 2 and the gun body 1 and the second air venting cavity 303 are communicated with each other to form an auxiliary air flow channel. The primary air flow path and the secondary air flow path are isolated from each other. The nozzle 3 is provided with a plurality of main air holes 304 and a plurality of auxiliary air holes 305, wherein the main air holes 304 are communicated with the main air flow channel, and the auxiliary air holes 305 are communicated with the auxiliary air flow channel. The gas flowing into the gun body 1 is divided into two paths at the head of the gun body 1 through the first gas flow channel 101 and the second gas flow channel 102, and one path flows out through the main gas flow channel, namely the first gas flow channel 101, the flow dividing air hole 203, the first ventilation cavity 302 and the main air hole 304; one path flows out through the secondary gas flow passage, i.e., the second gas flow passage 102, the gap formed between the outer side of the nozzle 2 and the gun body 1, the second vent chamber 303 and the secondary vent 305, and sprays the liquid sprayed from the nozzle 2 into mist. By adopting the technical structure, the splitter plate is not required to be reused, so that the cleaning is convenient, the assembly is simple, the cost is saved, and the production efficiency is improved.
A nozzle bush 4 is installed between the first liquid flow path 201 and the second liquid flow path 104.
Referring to fig. 3 and 4, a first inclined surface 2011 is arranged on the outer side of the circumference of the end portion of the first liquid flow channel 201, a second liquid flow channel 104 communicated with the first liquid flow channel 201 is arranged in the gun body 1, a second inclined surface is arranged on the second liquid flow channel 104, and the first inclined surface 2011 is connected with the second inclined surface in a sealing manner and isolates the two liquid flow channels from the main air flow channel. Wherein, the inclination on first inclined plane 2011 and second inclined plane is 60 degrees, gives certain pressure through shower nozzle 3, makes first inclined plane 2011 and second inclined plane closely cooperate and is connected, can effectually prevent in gaseous entering liquid flow way, avoid the spray gun to produce in the use and jump the lacquer phenomenon, make the surface of spraying perfect more to can use repeatedly.
In the previous description, numerous specific details were set forth in order to provide a thorough understanding of the invention. The foregoing description is only illustrative of the preferred embodiments of the invention, which can be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. All the contents that do not depart from the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical substance of the present invention all still belong to the protection scope of the technical solution of the present invention.
Claims (5)
1. A spray nozzle connection for a spray gun, comprising: rifle body (1), nozzle (2) and shower nozzle (3), shower nozzle (3) are installed rifle body (1) head, nozzle (2) are installed shower nozzle (3) with between the rifle body (1), its characterized in that: the gas nozzle is characterized in that a first gas flow channel (101) and a second gas flow channel (102) are arranged on the gun body (1), the first gas flow channel (101) and the second gas flow channel (102) are separated by a first annular boss (103), a first liquid flow channel (201) is arranged on the nozzle (2) along the axis, an annular groove (202) is arranged on one side, facing the gun body (1), of the nozzle (2), a plurality of flow dividing air holes (203) are formed between the first liquid flow channel (201) and the annular groove (202), and the annular groove (202) is in sealing connection with the first annular boss (103); a second annular boss (301) is arranged in the spray head (3), the second annular boss (301) is connected with the spray nozzle (2) in a sealing mode, and a first ventilation cavity (302) is formed between the second annular boss (301) and the spray nozzle (2); the first gas flow channel (101), the flow dividing air hole (203) and the first ventilation cavity (302) are communicated with each other to form a main gas flow channel; a second venting cavity (303) is formed between the second annular boss (301) and the inner wall of the spray head (3), and the second gas flow channel (102) is communicated with the second venting cavity (303) to form a secondary gas flow channel.
2. The nozzle connecting structure of a spray gun according to claim 1, wherein: the outer side of the circumference of the end part of the first liquid flow channel (201) is provided with a first inclined plane (2011), a second liquid flow channel (104) communicated with the first liquid flow channel (201) is arranged in the gun body (1), the second liquid flow channel (104) is provided with a second inclined plane, the first inclined plane (2011) is in sealing connection with the second inclined plane, and the two liquid flow channels and the main air flow channel are isolated from each other.
3. The nozzle connecting structure of a spray gun according to claim 2, wherein: a nozzle bush (4) is installed between the first liquid flow path (201) and the second liquid flow path (104).
4. The nozzle connecting structure of a spray gun according to claim 1, wherein: the nozzle (2) is along the reposition of redundant personnel gas hole (203) outside is provided with third annular boss (204), third annular boss (204) with second annular boss (301) sealing connection.
5. The nozzle connecting structure of a spray gun according to claim 1, wherein: the spray head (3) is provided with a plurality of main air holes (304) and a plurality of auxiliary air holes (305), the main air holes (304) are communicated with the main air flow channel, and the auxiliary air holes (305) are communicated with the auxiliary air flow channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021967091.3U CN213255175U (en) | 2020-09-10 | 2020-09-10 | Nozzle connecting structure of spray gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021967091.3U CN213255175U (en) | 2020-09-10 | 2020-09-10 | Nozzle connecting structure of spray gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213255175U true CN213255175U (en) | 2021-05-25 |
Family
ID=75940172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021967091.3U Ceased CN213255175U (en) | 2020-09-10 | 2020-09-10 | Nozzle connecting structure of spray gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213255175U (en) |
-
2020
- 2020-09-10 CN CN202021967091.3U patent/CN213255175U/en not_active Ceased
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| IW01 | Full invalidation of patent right | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20220920 Decision number of declaring invalidation: 58237 Granted publication date: 20210525 |