CN113976345B - Centrifugal fan blade spray gun - Google Patents
Centrifugal fan blade spray gun Download PDFInfo
- Publication number
- CN113976345B CN113976345B CN202111273723.5A CN202111273723A CN113976345B CN 113976345 B CN113976345 B CN 113976345B CN 202111273723 A CN202111273723 A CN 202111273723A CN 113976345 B CN113976345 B CN 113976345B
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- Prior art keywords
- air
- spray gun
- blade
- motor
- shell
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/0081—Apparatus supplied with low pressure gas, e.g. "hvlp"-guns; air supplied by a fan
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The invention discloses a centrifugal fan blade spray gun, which comprises a power part, a spray gun part, a handle part, a trigger mechanism and a liquid container, wherein the upper part of the handle part is connected with the power part, the output end of the power part is connected with the spray gun part, the liquid inlet end of the spray gun part is connected with the liquid container, the spray gun part is provided with the trigger mechanism, the power part comprises a shell, a motor, blades and a blade cover, the blade cover comprises an annular cover sheet which is fixedly and hermetically abutted to the inner wall of the middle part of the shell and an air suction baffle sheet fixedly connected with the rear end of the annular cover sheet, the middle part of the air suction baffle sheet is provided with an air suction port, the shell is separated by the blade cover to form a front air cavity and a rear air cavity, the shell is provided with an air vent communicated with the rear air cavity, and the air outlet end of the front air cavity is communicated with the air inlet end of the spray gun part; the motor is fixedly arranged in the front air cavity, and the output end of the motor is connected with the blades positioned in the annular cover plate in a driving way. This centrifugal fan blade spray gun has improved the utilization ratio of air through improving the structure of power portion, has reduced the demand to high power motor, realizes low-cost atomizing.
Description
Technical Field
The invention relates to the technical field of spray guns, in particular to a centrifugal fan blade spray gun.
Background
The spray gun is a tool for spraying various kinds of low-viscosity liquid into mist, and can obtain an attractive and uniform coating layer on the surface of a coated workpiece by atomizing the coating through the spray gun, and in order to obtain a higher-quality coated surface, the atomization requirement of the coating is met by controlling the airflow flow rate of the spray gun, the spraying amount of the spraying, improving the mechanical structure of a spray head of the spray gun and the like.
The Chinese patent of the invention discloses a centrifugal fan blade spray gun (with the application number of CN 2020107326426), which comprises a handle, wherein the upper part of the handle is connected with a fan part, the front end of the fan part is connected with a spray gun part, and the lower part of the spray gun part is connected with a material bottle; the fan part comprises a shell, a first-stage fan blade and a rotor are arranged in the shell from right to left, a second-stage fan blade is matched with the left end of the rotor, and a corresponding stator is matched with the outer side of the rotor. According to the centrifugal fan blade spray gun, the two-stage pressurizing structure is formed by the first-stage fan blades, the rotor, the second-stage fan blades and the stator, so that the air pressure is improved, and the atomization effect is further improved. But through the secondary supercharging structure, the utilization rate of single supercharging is relatively low, and meanwhile, a motor with larger power needs to be equipped, so that the production and use costs are relatively high.
Disclosure of Invention
The invention aims to provide a centrifugal fan blade spray gun, which improves the utilization rate of air, reduces the requirement on a high-power motor and realizes low-cost atomization by improving the structure of a power part.
In order to achieve the purpose, the centrifugal fan blade spray gun provided by the invention comprises a power part, a spray gun part, a handle part, a trigger mechanism and a liquid container, wherein the power part is connected to the upper part of the handle part, the output end of the power part is connected with the spray gun part, the liquid inlet end of the spray gun part is connected with the liquid container, the trigger mechanism is configured on the spray gun part, the power part comprises a shell, a motor, blades and a blade cover, the blade cover comprises an annular cover sheet which is fixedly and hermetically abutted to the inner wall of the middle part of the shell and an air suction baffle sheet fixedly connected with the rear end of the annular cover sheet, an air suction inlet is formed in the middle of the air suction baffle sheet, the blade cover separates the shell into a front air cavity and a rear air cavity, the shell is provided with at least one ventilation hole communicated with the rear air cavity, and the air outlet end of the front air cavity is communicated with the air inlet end of the spray gun part; the motor is fixedly arranged in the front air cavity, and the output end of the motor is connected with a blade positioned in the annular cover plate in a driving manner.
When the centrifugal fan blade spray gun works, the motor drives the blades to rotate, the blades rotate to enable air in the rear air cavity to enter the blades through the air suction openings and enter the spray gun part from the front air cavity after being pressurized by the blades, at the moment, the air pressure in the rear air cavity is lower than the air pressure outside the spray gun, and the air outside the spray gun enters the rear air cavity through the air vent, so that the air pressure in the rear air cavity is kept close to balance with the external air pressure.
The blade cover in the centrifugal fan blade spray gun separates the shell into a front air cavity and a rear air cavity, the motor is arranged in the front air cavity, the rear end of the front air cavity forms an unique air inlet end, the front end of the front air cavity forms an unique air outlet end, and all air in the front air cavity can be used for pressurizing and driving spraying solution, so that the utilization rate of pressurized air is improved.
In the above technical solution, the present invention may further be modified as follows:
preferably, the blade includes preceding acanthus leaf, back acanthus leaf and baffle, the baffle is a plurality of, preceding acanthus leaf and back acanthus leaf parallel arrangement, and be connected through a plurality of baffles of evenly locating between preceding acanthus leaf and the back acanthus leaf, and arbitrary two adjacent baffles, preceding acanthus leaf and back acanthus leaf all enclose into blade defeated wind passageway, the back acanthus leaf is seted up with the coaxial blade air intake of inlet scoop, the connecting hole of rigid coupling motor output shaft is seted up to the preceding acanthus leaf.
Preferably, the air guide device further comprises a guide part movably sleeved on the output shaft of the motor and positioned on the front side of the blade, and the guide part is provided with a plurality of guide holes.
Preferably, the water conservancy diversion spare includes cap form wind-guiding body, evenly be provided with a plurality of water conservancy diversion holes in the circumference of cap form wind-guiding body lateral surface, the air inlet side in water conservancy diversion hole is equipped with progressive air inlet water conservancy diversion lane extension, the air-out side in water conservancy diversion hole has progressive air-out water conservancy diversion passageway, the middle part of cap form wind-guiding body is equipped with pipe form installation section, pipe form installation section internal stability be equipped with the output shaft normal running fit's of motor bearing.
Preferably, the progressive air inlet flow guide expanding channel is of a triangular cone structure arranged along the circumferential direction of the cover-shaped air guide body.
Preferably, the progressive air outlet diversion channel is of an arc-shaped hook structure.
Preferably, the cap-shaped air guide body is provided with two connecting columns for fixing the motor stators on the inner side, and the motor rotor is positioned between the two motor stators.
Preferably, the edge of the flow guide piece is integrally clamped with the edge of the blade cover.
Preferably, two clamping plates are arranged in the shell, a clamping groove is formed between the two clamping plates, and the annular cover sheet is clamped in the clamping groove.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below.
Fig. 1 is a schematic perspective view of a centrifugal fan blade spray gun according to an embodiment of the present invention;
FIG. 2 is an exploded schematic view of FIG. 1;
FIG. 3 is a partial schematic view of FIG. 2;
FIG. 4 is a partial schematic view of the power section of FIG. 2;
FIG. 5 is an exploded view of FIG. 4;
FIG. 6 is a perspective view of the bucket cover of FIG. 5;
FIG. 7 is a perspective view of the blade of FIG. 5;
FIG. 8 is an angled perspective view of the baffle of FIG. 5;
fig. 9 is a perspective view of the baffle of fig. 5 at another angle.
In the attached figures, the drawing is shown,
the device comprises a power part 1, a shell 11, a vent hole 111, a clamping plate 112, a motor 12, a blade 13, a front blade plate 131, a rear blade plate 132, a blade air inlet 1321, a partition plate 133, a blade cover 14, an annular cover sheet 141, an air suction baffle 142, an air suction opening 1421, a flow guide piece 15, a cap-shaped air guide body 151, a flow guide hole 152, a progressive air inlet flow guide expanding channel 153, a progressive air outlet flow guide channel 154, a circular tubular installation section 155, a connecting column 156, a spray gun part 2, a handle part 3, a trigger mechanism 4 and a liquid container 5.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
Referring to fig. 1 to 9, the present embodiment discloses a centrifugal fan blade spray gun, which includes a power portion 1, a spray gun portion 2, a handle portion 3, a trigger mechanism 4 and a liquid container 5.
As shown in fig. 1, a power portion 1 is connected to the upper portion of a handle portion 3, an output end of the power portion 1 is connected to a spray gun portion 2, a liquid inlet end of the spray gun portion 2 is connected to a liquid container 5, and the spray gun portion 2 is provided with a trigger mechanism 4, wherein the structures of the trigger mechanism 4, the spray gun portion 2 and the liquid container 5 are the same as those of a centrifugal fan blade spray gun (application No. CN 2020107326426) disclosed by the applicant, and therefore, the detailed description thereof is omitted.
As shown in fig. 2, fig. 4 and fig. 5, power portion 1 includes shell 11, motor 12, blade 13 and blade cover 14, blade cover 14 includes that fixed seal supports and leans on in the cyclic annular cover piece 141 of shell 11 middle part inner wall and with the separation blade 142 that induced drafts of cyclic annular cover piece 141 rear end rigid coupling, induced draft port 1421 has been seted up at the middle part of separation blade 142 that induced drafts, blade cover 14 separates shell 11 and forms preceding wind chamber and back wind chamber, shell 11 is seted up at least one ventilation hole 111 with back wind chamber intercommunication, the air-out end in preceding wind chamber communicates with the air inlet end of spray gun portion 2, motor 12 sets firmly in preceding wind chamber, and the output drive of motor 12 is connected with the blade 13 that is located cyclic annular cover piece 141.
When the centrifugal fan blade spray gun works, the motor 12 drives the blades 13 to rotate, the blades 13 rotate to enable air in the rear air cavity to enter the blades 13 through the air suction openings 1421 and then enter the spray gun part 2 from the front air cavity after being pressurized by the blades 13, at the moment, the air pressure in the rear air cavity is lower than the air pressure outside the spray gun, and the air outside the spray gun enters the rear air cavity through the air vent 111, so that the air pressure in the rear air cavity is kept approximately balanced with the air pressure outside the spray gun.
The blade cover 14 in the centrifugal fan blade spray gun divides the shell 11 into a front air cavity and a rear air cavity, the motor 12 is arranged in the front air cavity, the rear end of the front air cavity forms an only air inlet end, the front end of the front air cavity forms an only air outlet end, all air in the front air cavity can be used for pressurizing and driving spraying solution, and therefore the utilization rate of pressurized air is improved.
As shown in fig. 2, the outer shell 11 is formed by splicing left and right half shells so as to mount the internal components of the power unit 1, and the lower portion of the front end of the outer shell 11 extends downwards to form the handle unit 3, i.e. the shell of the power unit 1 and the handle unit 3 are an integral structure.
As shown in fig. 3, the rear side wall and the rear end surface of the housing 11 are both provided with a plurality of ventilation holes 111 communicated with the rear air chamber, and the number of the ventilation holes 111 on the rear side wall of the housing 11 is determined according to the size of the installation space.
As shown in fig. 7, the blade 13 includes a plurality of front blades 131, a plurality of rear blades 132 and a plurality of partition boards 133, the front blades 131 are parallel to the rear blades 132, and are connected to each other through the plurality of partition boards 133 uniformly disposed between the front blades 131 and the rear blades 132, any two adjacent partition boards 133, the front blades 131 and the rear blades 132 enclose a blade air duct, the rear blades 132 are provided with blade air inlets 1321 coaxial with the air suction ports 1421, and the front blades 131 are provided with connecting holes fixedly connected to the output shaft of the motor 12.
In an alternative embodiment, the blade inlet 1321 extends backward to be close to the air suction opening 1421, so that the air entering the air suction opening 1421 can completely enter the blade 13 through the blade inlet 1321 and is pressurized by the blade 13 and then output, and the partition 133 is preferably an arc-shaped plate, which helps to improve the pressurization efficiency of the blade 13.
As shown in fig. 5, the power unit 1 further includes a flow guiding member 15 movably sleeved on the output shaft of the motor 12 and located in front of the blades 13, the flow guiding member 15 has a plurality of flow guiding holes 152, and the flow guiding member 15 can make the pressurized air output by the blades 13 flow directionally, so that the pressurized air can be fully utilized.
As shown in fig. 5, 8 and 9, the guiding element 15 includes a cap-shaped guiding body 151, a plurality of guiding holes 152 are uniformly arranged in the circumferential direction of the outer side surface of the cap-shaped guiding body 151, a progressive air inlet guiding expanding channel 153 is arranged on the air inlet side of the guiding holes 152, a progressive air outlet guiding channel 154 is arranged on the air outlet side of the guiding holes 152, a circular tube-shaped mounting section 155 is arranged in the middle of the cap-shaped guiding body 151, and a bearing rotatably matched with the output shaft of the motor 12 is fixedly arranged in the circular tube-shaped mounting section 155. .
As shown in fig. 8, the progressive air inlet diversion expanding channel 153 is a triangular cone structure disposed along the circumferential direction of the cap-shaped air guide body, in this embodiment, the number of the progressive air inlet diversion expanding channels 153 is eight, and the progressive air inlet diversion expanding channel is uniformly disposed around the center of the cap-shaped air guide body 151, and pressurized air output from the blades 13 enters the inner side of the cap-shaped air guide body 151 from the diversion holes 152 after passing through the progressive air inlet diversion expanding channel 153, as shown in fig. 9, the progressive air outlet diversion channel 154 is in an arc hook-shaped structure, and air output from the diversion holes 152 can flow in a preset direction after being diverted by the progressive air outlet diversion channel 154, so that the air output from the blades 13 is directly blown to the motor 12 and the spray gun portion 2, which is helpful for reducing air resistance, and further improving air utilization rate.
As shown in fig. 9, two connecting posts 156 for fixing the motor stator are disposed on the inner side of the cap-shaped wind guide body 151, the motor rotor is located between two stators of the motor 12, the motor stators are fixed on the connecting posts 156 by screws, so that the integrated connection between the wind guide 15 and the motor 12 is realized, the edge of the wind guide 15 and the edge of the blade cover 14 are clamped into a whole, so that the wind guide 15 and the blade cover 14 are integrated into a whole, two clamping plates 112 are disposed in the casing 11, a clamping groove is formed between the two clamping plates 112, the annular cover sheet 141 is clamped in the clamping groove, and the fixation of the blade cover 14 in the casing 11 is realized.
In summary, the centrifugal fan blade spray gun provided by the embodiment can form a front air cavity and a rear air cavity in the housing 11 by arranging the blade cover 14, the motor 12 and the blades 13 are arranged in the front air cavity, and the air pressurized by the blades 13 is directly utilized by the spray gun part 2, so that the utilization rate of the air can be improved, and the production cost and the use cost of the centrifugal fan blade spray gun can be reduced by reducing the power of the motor 12.
Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the invention as defined in the appended claims. The techniques, shapes, and configurations not described in detail in the present invention are all known techniques.
Claims (5)
1. The utility model provides a centrifugal fan blade spray gun, includes power portion (1), spray gun portion (2), handle portion (3), trigger mechanism (4) and flourishing liquid container (5), power portion (1) is connected to the upper portion of handle portion (3), the output of power portion (1) is connected with spray gun portion (2), the inlet end of spray gun portion (2) is connected with flourishing liquid container (5), spray gun portion (2) dispose trigger mechanism (4), its characterized in that:
the power part (1) comprises a shell (11), a motor (12), blades (13) and a blade cover (14), wherein the blade cover (14) comprises an annular cover sheet (141) which is fixedly sealed and abutted to the inner wall of the middle part of the shell (11) and an air suction baffle sheet (142) fixedly connected with the rear end of the annular cover sheet (141), the middle part of the air suction baffle sheet (142) is provided with an air suction opening (1421), the blade cover (14) separates the shell (11) to form a front air cavity and a rear air cavity, the shell (11) is provided with at least one air vent (111) communicated with the rear air cavity, the air outlet end of the front air cavity is communicated with the air inlet end of the spray gun part (2), the motor (12) is fixedly arranged in the front air cavity, and the output shaft of the motor (12) is in driving connection with the blades (13) positioned in the annular cover sheet (141);
the guide vane device also comprises a guide part (15) which is movably sleeved on an output shaft of the motor (12) and is positioned on the front side of the vane (13), and the guide part (15) is provided with a plurality of guide holes (152);
the flow guide piece (15) comprises a cap-shaped air guide body (151), a plurality of flow guide holes (152) are uniformly formed in the circumferential direction of the outer side surface of the cap-shaped air guide body (151), a progressive air inlet flow guide expanding channel (153) is formed in the air inlet side of each flow guide hole (152), a progressive air outlet flow guide channel (154) is formed in the air outlet side of each flow guide hole (152), a circular tube-shaped mounting section (155) is formed in the middle of the cap-shaped air guide body (151), and a bearing which is in rotating fit with an output shaft of the motor (12) is fixedly arranged in each circular tube-shaped mounting section (155);
the progressive air inlet flow guide expanding channel (153) is of a triangular conical structure arranged along the circumferential direction of the cover-shaped air guide body;
the progressive air outlet flow guide channel (154) is of an arc hook-shaped structure.
2. The centrifugal fan blade spray gun of claim 1, wherein the blades (13) comprise a plurality of front blade plates (131), a plurality of rear blade plates (132) and a plurality of partition plates (133), the front blade plates (131) and the rear blade plates (132) are arranged in parallel and are connected through the plurality of partition plates (133) uniformly arranged between the front blade plates (131) and the rear blade plates (132), any two adjacent partition plates (133), the front blade plates (131) and the rear blade plates (132) enclose a blade air delivery channel, the rear blade plates (132) are provided with blade air inlets (1321) coaxial with the air suction ports (1421), and the front blade plates (131) are fixedly connected with connecting holes of output shafts of the motor (12).
3. The centrifugal fan blade spray gun of claim 1, wherein the cap-shaped air guide body (151) is provided at an inner side thereof with two connecting columns (156) for fixing a motor stator, and the motor rotor is located between the two motor stators.
4. A centrifugal blade lance as claimed in claim 1, wherein the edge of the flow guide member (15) is integrally engaged with the edge of the shroud (14).
5. The centrifugal fan blade spray gun according to claim 1, wherein two clamping plates (112) are arranged in the shell (11), a clamping groove is formed between the two clamping plates (112), and the annular cover plate (141) is clamped in the clamping groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111273723.5A CN113976345B (en) | 2021-10-29 | 2021-10-29 | Centrifugal fan blade spray gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111273723.5A CN113976345B (en) | 2021-10-29 | 2021-10-29 | Centrifugal fan blade spray gun |
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| Publication Number | Publication Date |
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| CN113976345A CN113976345A (en) | 2022-01-28 |
| CN113976345B true CN113976345B (en) | 2023-03-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111273723.5A Active CN113976345B (en) | 2021-10-29 | 2021-10-29 | Centrifugal fan blade spray gun |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203394872U (en) * | 2013-04-14 | 2014-01-15 | 佛山市南海九洲普惠风机有限公司 | Wind scooper and atomization cooling fan |
| CN213792303U (en) * | 2020-07-07 | 2021-07-27 | 宁波江辉电器科技有限公司 | Hand-held electric spray gun |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002059037A (en) * | 2000-08-18 | 2002-02-26 | Freunt Ind Co Ltd | Spray gun, powder treatment apparatus and powder treatment method using the same |
| CN102101084B (en) * | 2011-01-12 | 2013-03-20 | 奉化市威优特电器有限公司 | Handheld electric spray gun |
| CN203227575U (en) * | 2013-04-03 | 2013-10-09 | 浙江普莱得电器有限公司 | Electric spray gun motor connecting mechanism |
| CN211648507U (en) * | 2019-12-30 | 2020-10-09 | 无锡康沃特变频电机有限公司 | High-efficient dust catcher fan assembly and dust catcher thereof |
| CN113441308A (en) * | 2020-03-27 | 2021-09-28 | 苏州宝时得电动工具有限公司 | Atomization device |
| CN111992348B (en) * | 2020-08-28 | 2022-08-30 | 宁波市威优特电器有限公司 | Brushless electric spray gun |
-
2021
- 2021-10-29 CN CN202111273723.5A patent/CN113976345B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203394872U (en) * | 2013-04-14 | 2014-01-15 | 佛山市南海九洲普惠风机有限公司 | Wind scooper and atomization cooling fan |
| CN213792303U (en) * | 2020-07-07 | 2021-07-27 | 宁波江辉电器科技有限公司 | Hand-held electric spray gun |
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| CN113976345A (en) | 2022-01-28 |
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