CN111992348A - Brushless electric spray gun - Google Patents
Brushless electric spray gun Download PDFInfo
- Publication number
- CN111992348A CN111992348A CN202010882186.3A CN202010882186A CN111992348A CN 111992348 A CN111992348 A CN 111992348A CN 202010882186 A CN202010882186 A CN 202010882186A CN 111992348 A CN111992348 A CN 111992348A
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- Prior art keywords
- air
- air collecting
- motor main
- collecting barrel
- motor
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- 239000007921 spray Substances 0.000 title claims abstract description 34
- 238000009434 installation Methods 0.000 claims abstract description 23
- 238000007789 sealing Methods 0.000 claims description 13
- 230000033228 biological regulation Effects 0.000 claims description 9
- 238000009423 ventilation Methods 0.000 claims description 9
- 238000001802 infusion Methods 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 229920000742 Cotton Polymers 0.000 claims description 5
- 239000010902 straw Substances 0.000 claims description 5
- 241000886569 Cyprogenia stegaria Species 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- 229910052744 lithium Inorganic materials 0.000 claims description 3
- 230000033001 locomotion Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 11
- 238000000889 atomisation Methods 0.000 abstract description 9
- 239000011248 coating agent Substances 0.000 description 11
- 238000000576 coating method Methods 0.000 description 11
- 239000007788 liquid Substances 0.000 description 8
- 230000017525 heat dissipation Effects 0.000 description 7
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
- H02P1/02—Details of starting control
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/08—Arrangements for controlling the speed or torque of a single motor
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Nozzles (AREA)
- Electrostatic Spraying Apparatus (AREA)
Abstract
The invention discloses a brushless electric spray gun which comprises a gun body, a storage barrel, a machine shell and a fan, wherein the front end of the gun body is respectively provided with a nozzle and an atomization hood covering the outside of the nozzle, a needle column installation cavity is arranged in the gun body, a suction pipe communicated with the needle column installation cavity is arranged in the storage barrel, a needle column assembly matched with the nozzle is movably arranged in the needle column installation cavity, a wind collecting barrel assembly is arranged in the machine shell, a wind collecting channel is formed in the wind collecting barrel assembly, a holding handle extends from the machine shell, the fan comprises a brushless motor and an impeller, the brushless motor comprises a motor main body and a driving controller for controlling the motor main body to operate, the motor main body and the impeller are arranged in the wind collecting channel, the impeller is arranged on a motor shaft of the motor main body, and the driving. The invention has the advantages of simple and reasonable structure, compact installation, better atomization effect and longer service life.
Description
Technical Field
The invention relates to the technical field of electric spray guns, in particular to a brushless electric spray gun.
Background
The spray gun is a spraying device which atomizes liquid and further sprays objects to be coated to obtain uniform and attractive coating layers. Electric spray gun generally by the rifle body, the nozzle, the atomizing hood, the storage bucket, the wind-collecting cylinder, cooperation such as fan and power supply module is constituteed, spray gun atomization work is mainly passed through the wind-collecting cylinder directly with the help of the wind pressure that the fan produced and is transmitted to the rifle body, make the internal two way wind pressures that form of rifle, the wind pressure of the same way acts on the storage bucket through the internal space of rifle, make the coating in the storage bucket pass through the straw under the wind pressure effect and press to the rifle body, and discharge through the nozzle, another way wind pressure is finally followed the clearance discharge between atomizing hood and the nozzle through the internal space of rifle, thereby atomize from nozzle spun liquid coating. For the specific structure and principle of the existing spray gun, refer to a dc spray gun as disclosed in chinese patent (application No. 201720715533.7).
The fan of current electric spray gun all adopts to have the brush motor as the power supply, and it is lower to have the wind pressure during the use, the not good problem of atomization effect, in addition, because there is the brush motor volume great, consequently need occupy great installation space, has brush motor life also shorter moreover.
Therefore, there is a need for an improved structure of the conventional electric spray gun.
Disclosure of Invention
The invention aims to overcome the defects and shortcomings of the prior art and provides a brushless electric spray gun which is simple and reasonable in structure, compact in installation, good in atomization effect and long in service life.
In order to achieve the purpose, the invention adopts the following technical scheme.
A brushless electric spray gun comprises a gun body, a storage barrel, a casing and a fan, wherein the storage barrel is connected to the bottom of the gun body, the casing is connected to the rear end of the gun body, the front end of the gun body is respectively provided with a nozzle and an atomizing hood covering the outside of the nozzle, a gap for air to flow out is formed between the atomizing hood and the nozzle, a needle column installation cavity is arranged in the gun body, a suction pipe communicated with the needle column installation cavity is arranged in the storage barrel, a needle column assembly matched with the nozzle is movably arranged in the needle column installation cavity, a trigger used for controlling the needle column assembly to move is arranged on the gun body, an air collecting barrel assembly is arranged in the casing and connected to the rear end of the gun body, the air collecting barrel assembly is provided with an air collecting channel communicated with the gun body, and a holding handle extends from the casing, the holding handle is provided with a power supply and a trigger switch for controlling the power on and off of the power supply;
the fan includes brushless motor and impeller, brushless motor includes motor main part and control the drive controller of motor main part function, motor main part with the impeller set up in the wind channel of collection, the impeller install in on the motor shaft of motor main part, drive controller set up in the grip handle, power supply motor main part trigger switch respectively with the drive controller electricity is connected.
Furthermore, the air collecting barrel assembly comprises an air collecting barrel and an air collecting barrel rear cover matched with the air collecting barrel, and the gun body, the air collecting barrel and the air collecting barrel rear cover are sequentially connected from front to back; the air collecting barrel is matched with the air collecting barrel rear cover to form the air collecting channel, the air penetrating grid plate is arranged inside the air collecting barrel, and the motor main body is abutted between the air penetrating grid plate and the air collecting barrel rear cover.
Furthermore, a motor positioning column is arranged between the front end of the motor main body and the ventilation grid plate in a propping manner, and the motor positioning column is respectively matched with the motor main body and the ventilation grid plate in a positioning manner.
Further, a fan shell covering the outside of the impeller is arranged at the rear end of the motor main body, a sealing sleeve is sleeved outside the fan shell, the outer wall of the sealing sleeve is in sealing fit with the inner wall of the rear cover of the air collecting cylinder, and the rear end of the sealing sleeve is axially abutted to the air collecting cylinder.
Further, the lateral wall of the grip handle is provided with heat dissipation holes, an air convection channel flowing through the drive controller is formed inside the grip handle, one end of the air convection channel is communicated with the heat dissipation holes, and the other end of the air convection channel is connected to an air inlet end of the air collection channel.
Further, the casing is provided with a speed regulation knob, and the speed regulation knob is electrically connected with the driving controller.
Further, the needle post subassembly includes needle post and needle post spring, the needle post with the nozzle corresponds the cooperation, the needle post spring support locate the needle post with between the rifle body, the needle post spring is used for making the needle post has the shutoff all the time the motion trend of nozzle, the trigger with the needle post linkage cooperation, the rifle body is formed with the infusion pipeline, the one end of infusion pipeline with the straw is connected, the other end with the needle post installation cavity intercommunication.
Furthermore, the rear end of the gun body is provided with a one-way valve used for limiting the fluid medium to flow to the gun body only from the air collecting channel, and the input end of the one-way valve is communicated with the air outlet end of the air collecting channel.
Furthermore, the rear end of the casing is provided with a casing rear cover with an air inlet, and dustproof cotton is arranged between the air inlet and the air inlet end of the air collecting channel.
Further, the power supply is a lithium battery detachably mounted at the bottom of the holding handle.
Compared with the existing electric spray gun, the brushless electric spray gun provided by the invention has the beneficial effects that:
(1) the brushless motor is adopted to replace a brush motor as a fan power source, so that the wind pressure generated during working is higher, and the atomization effect is better improved; the brushless motor is smaller in size, and the installation space is saved during installation; the brushless motor has longer service life, more stable and reliable working performance and more convenient control;
(2) because the brushless motor needs to be provided with a driving controller to control the working state (such as electronic commutation and the like) of the motor main body, the existing brushless motor usually integrates the motor main body and the driving controller, but the invention adopts a distributed layout mode of the motor main body and the driving controller, in particular, the motor main body is arranged in an air collecting channel, the driving controller is separately arranged in a holding handle, the structure is adopted, when the fan is started, the shielding of the driving controller on the air pressure flowing to a gun body can be reduced, the wind power is improved, meanwhile, the air pressure flowing to the air collecting channel from an air inlet at the rear end of a shell generated by the rotation of an impeller can not flow through the driving controller and then enter the gun body, thereby avoiding the phenomenon that liquid coating volatilizes and blocks a nozzle (the driving controller is integrated with various electronic components, the during operation temperature is higher, and the spray gun is at the during operation, the overwhelming majority of air that gets into the spray gun is from the air inlet department that is located the casing rear end, if this part wind pressure flows through drive controller, just can take away drive controller's heat through the form of convection current, receive spray gun casing size's restriction in addition, the length of collection wind passageway is limited, make the gas temperature that flows to the rifle body higher, high-temperature gas can make liquid coating volatilize, and leave over and just can cause the nozzle to block up in the air-dried coating of nozzle department), and then further ensured atomization effect, the product quality has been promoted.
Drawings
Fig. 1 is an overall sectional structural view of the present invention.
Fig. 2 is a schematic overall perspective view of the present invention.
Fig. 3 is an exploded view of the motor body, impeller and wind collecting barrel assembly of the present invention.
Fig. 4 is a sectional view of the motor body, the impeller and the wind collecting barrel assembly in matching assembly.
In FIGS. 1-4: 1. a gun body; 11. a needle post mounting cavity; 12. a transfusion pipeline; 13. a one-way valve; 2. a storage barrel; 21. a straw; 3. a housing; 31. a trigger switch; 32. a grip handle; 321. heat dissipation holes; 33. a speed regulation knob; 34. a rear cover of the housing; 35. dustproof cotton; 4. a nozzle; 5. an atomizing hood; 51. an atomizing channel; 6. a trigger; 71. a needle cylinder; 72. a needle cylinder spring; 81. an air collecting cylinder; 811. a ventilation grid plate; 82. a rear cover of the wind collecting barrel; 83. a wind collecting channel; 91. a motor main body; 911. a fan housing; 92. a drive controller; 93. an impeller; 94. sealing sleeves; 10. a motor positioning column; A. an air convection channel.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
Referring to fig. 1-4, a brushless electric spray gun includes a gun body 1, a storage tank 2, a housing 3 and a blower, wherein the storage tank 2 and the housing 3 are respectively connected to the gun body 1, in this embodiment, the storage tank 2 is connected to the bottom of the gun body 1, and the housing 3 is connected to the rear end of the gun body 1. The front end of the gun body 1 is respectively provided with a nozzle 4 and an atomizing hood 5 covering the outside of the nozzle 4, a gap for gas to flow out is arranged between the atomizing hood 5 and the nozzle 4, and an atomizing channel 51 is formed on the atomizing hood 5 and used for high-pressure gas flowing into the gun body 1 to flow out, so that the coating at the nozzle 4 is atomized.
Be provided with needle post installation cavity 11 in the rifle body 1, be provided with the straw 21 with needle post installation cavity 11 intercommunication in the storage vat 2, needle post installation cavity 11 internalization be provided with nozzle 4 complex needle post subassembly, be provided with the trigger 6 that is used for controlling the action of needle post subassembly on the rifle body 1.
The needle column assembly comprises a needle column 71 and a needle column spring 72, the needle column 71 is correspondingly matched with the nozzle 4, the needle column spring 72 is abutted between the needle column 71 and the gun body 1, the needle column spring 72 is used for enabling the needle column 71 to have the movement trend of blocking the nozzle 4 all the time, the trigger 6 is in linkage fit with the needle column 71, the gun body 1 is formed with an infusion pipeline 12, one end of the infusion pipeline 12 is connected with the suction pipe 21, and the other end of the infusion pipeline is communicated with the needle column installation cavity 11.
Two wind channels are formed in the gun body 1, one wind channel is communicated with the atomizing channel 51, the other wind channel is communicated with the storage barrel 2, after high-pressure gas enters the gun body 1, the gas flowing into the storage barrel 2 presses liquid coating in the storage barrel 2 to the needle post installation cavity 11 from the suction pipe 21 under the action of air pressure, the gas flows out of the gun body 1 from the nozzle 4, the gas which does not flow into the storage barrel 2 is discharged out of the gun body 1 through the atomizing channel 51, the liquid coating at the position of the nozzle 4 is atomized, and the atomizing and spraying effects are achieved.
Be provided with air collecting barrel subassembly in the casing 3, air collecting barrel subassembly is connected in the rear end of the rifle body, air collecting barrel subassembly be formed with the air collecting channel 83 of rifle body intercommunication, casing 3 extends has grip handle 32, grip handle 32 is provided with power supply and is used for controlling the trigger switch 31 of power supply outage, in this embodiment, power supply is detachably installed in the lithium cell (not shown in the figure) of grip handle 32 bottom, trigger switch 31 and trigger 6 linkage cooperation, when pulling trigger 6, trigger 6 rotates and triggers trigger switch 31 relative rifle body 1.
The fan includes brushless motor and impeller 93, and brushless motor includes motor main part 91 and the drive controller 92 of control motor main part 91 function, and motor main part 91 and impeller 93 set up in wind channel 83, and impeller 93 installs on the motor shaft of motor main part 91, and impeller 93 is located the rear end of motor main part 91, and drive controller 92 sets up in gripping handle 32, and power supply, motor main part 91, trigger switch 31 are connected with drive controller 92 electricity respectively.
The above constitutes the main structure of the present invention.
The brushless motor is adopted to replace a brush motor as a fan power source, so that the wind pressure generated during working is higher, and the atomization effect is better improved; the brushless motor is smaller in size, and the installation space is saved during installation; the brushless motor has longer service life, more stable and reliable working performance and more convenient control.
Because the brushless motor needs to be provided with the driving controller 92 to control the working state (such as electronic commutation and the like) of the motor main body 91, the existing brushless motor usually integrates the motor main body 91 and the driving controller 92, while the invention adopts a distributed layout mode for the motor main body 91 and the driving controller 92, specifically, the motor main body 91 is installed in the wind collecting channel 83, and the driving controller 92 is separately arranged in the holding handle 32, in other words, the space region formed by the wind collecting barrel assembly and the gun body 1 is not provided with a heating electronic component for driving the motor main body to work, and the above structural arrangement is adopted, when the fan is started, the shielding of the driving controller 92 on the wind pressure flowing to the gun body 1 can be reduced, the wind power is improved, and simultaneously, the wind pressure generated by the rotation of the impeller 93 and flowing to the wind collecting channel from the air inlet at the rear end of the machine shell 3, the liquid coating can be prevented from volatilizing and blocking the nozzle 4 (the driving controller 92 is integrated with various electronic components, the temperature is higher during operation, the spray gun operates, most of the air entering the spray gun is from the air inlet positioned at the rear end of the shell 3, if the air pressure flows through the driving controller 92, the heat of the driving controller 92 can be taken away in a convection mode, the air collecting channel 83 is limited in length, the air temperature flowing into the gun body 1 is higher, the high-temperature air can volatilize the liquid coating, the air-dried coating at the nozzle can be left to block the nozzle 4), the atomization effect is further ensured, and the product quality is improved.
In this embodiment, the air collecting duct assembly includes an air collecting duct 81 and an air collecting duct rear cover 82 adapted thereto, and the gun body 1, the air collecting duct 81 and the air collecting duct rear cover 82 are sequentially connected from front to back. The air collecting barrel 81 and the air collecting barrel rear cover 82 are matched to form an air collecting channel 83, an air penetrating grid plate 811 is arranged inside the air collecting barrel 81, and the motor main body 91 is abutted between the air penetrating grid plate 811 and the air collecting barrel rear cover 82.
Specifically, a motor positioning column 10 is abutted between the front end of the motor main body 91 and the ventilation grid plate 811, the motor positioning column 10 is respectively in positioning fit with the motor main body 91 and the ventilation grid plate 811, in this embodiment, positioning bosses are respectively arranged at the front end and the rear end of the motor positioning column 10, and positioning grooves matched with the corresponding positioning bosses are respectively arranged on the motor main body 91 and the ventilation grid plate 811.
In this embodiment, the rear end of the motor main body 91 is provided with a fan housing 911 covering the outside of the impeller 93, the outside of the fan housing 911 is sleeved with a sealing sleeve 94, the outer wall of the sealing sleeve 94 is in sealing fit with the inner wall of the air collecting cylinder rear cover 82, and the rear end of the sealing sleeve 94 is axially abutted to the air collecting cylinder 81.
Through above mounting structure for motor main part 91 and impeller 93 are spacing behind ventilation grid 811 and collection wind section of thick bamboo between lid 82 axially, simultaneously, utilize the sealed cooperation between lid 82 behind seal cover 94 and the collection wind section of thick bamboo, both make motor main part 91 and impeller 93 spacing at the circumferencial direction, ensure that during operation motor main part 91/impeller 93 can not appear along axial/radial rocking, and also ensured that near the air of impeller 93 can only flow to collection wind passageway 83 from impeller 93, the wind collection effect is better, further promoted the wind pressure.
In this embodiment, the heat dissipation holes 321 are formed in the side wall of the grip handle 32, the air convection channel a flowing through the driving controller 92 is formed inside the grip handle 32, one end of the air convection channel a is communicated with the heat dissipation holes 321, and the other end of the air convection channel a is connected to the air inlet end of the air collection channel 83, by setting the above structure, when the blower is started, most of the air near the casing 3 will flow into the air collection channel from the air inlet at the rear end of the casing 3 (i.e., the air inlet disposed in the casing rear cover 34) under the negative pressure, but at the same time, some air (a small amount) will be sucked into the air convection channel a from the heat dissipation holes 321 and flow into the air inlet end of the air collection channel 83 along the air convection channel a, so that the heat of the driving controller 92 can be taken away in the flowing process of the small amount of air. It should be noted that, on one hand, since the air in the air convection channel a needs to move for a certain distance and time before entering the air collection channel, and on the other hand, since the air flow entering the air convection channel a through the heat dissipation holes is relatively small (much smaller than the air flow flowing in from the air inlet at the rear end of the casing 3), although the air in the air convection channel a carries some heat to form hot air in the above working process, the temperature of the hot air is reduced when entering the air collection channel 83, and especially after being merged with a large amount of cold air flowing in from the rear end of the casing 3, the hot air can be substantially neutralized by the cold air, so that no significant temperature rise effect is generated on the air pressure entering the gun body 1.
In this embodiment, the casing 3 is provided with a speed regulation knob 33, the speed regulation knob 33 is electrically connected to the driving controller 92, and the speed regulation knob 33 is used for speed regulation control of the motor main body 91, so as to change the wind pressure.
In this embodiment, the rear end of the gun body 1 is provided with a check valve 13 for limiting the fluid medium to flow to the gun body 1 only from the air collecting channel 83, the input end of the check valve 13 is communicated with the air outlet end of the air collecting channel 83, and specifically, the check valve 13 is arranged at the air inlet end of the gun body 1. When the fan shut down, check valve 13 self-closing has prevented remaining gas's refluence in the storage vat 2, and remaining gas can in time be discharged from atomizing channel 51 in the rifle body 1 for when the start next time, liquid material can normally atomize, and the water spray column phenomenon can not appear.
In this embodiment, the rear end of the housing 3 is provided with the housing rear cover 34 having the air inlet, the dustproof cotton 35 is arranged between the air inlet and the air inlet end of the air collecting channel 83, and the dustproof cotton 35 can effectively filter particles such as dust in the air, so as to prevent the particles from entering the air collecting channel 83, thereby playing the role of protecting all parts of the housing.
The above description is only a preferred embodiment of the present invention, and all equivalent changes or modifications of the structure, characteristics and principles described in the present invention are included in the scope of the present invention.
Claims (10)
1. A brushless electric spray gun comprises a gun body, a storage barrel, a casing and a fan, wherein the storage barrel is connected to the bottom of the gun body, the casing is connected to the rear end of the gun body, the front end of the gun body is respectively provided with a nozzle and an atomizing hood covering the outside of the nozzle, a gap for air to flow out is formed between the atomizing hood and the nozzle, a needle column installation cavity is arranged in the gun body, a suction pipe communicated with the needle column installation cavity is arranged in the storage barrel, a needle column assembly matched with the nozzle is movably arranged in the needle column installation cavity, a trigger used for controlling the needle column assembly to move is arranged on the gun body, an air collecting barrel assembly is arranged in the casing and connected to the rear end of the gun body, the air collecting barrel assembly is provided with an air collecting channel communicated with the gun body, and a holding handle extends from the casing, the grip handle is provided with power supply and is used for controlling the trigger switch of power supply break-make electricity, its characterized in that:
the fan includes brushless motor and impeller, brushless motor includes motor main part and control the drive controller of motor main part function, motor main part with the impeller set up in the wind channel of collection, the impeller install in on the motor shaft of motor main part, drive controller set up in the grip handle, power supply motor main part trigger switch respectively with the drive controller electricity is connected.
2. The brushless electric spray gun of claim 1, wherein: the air collecting barrel assembly comprises an air collecting barrel and an air collecting barrel rear cover matched with the air collecting barrel, and the gun body, the air collecting barrel and the air collecting barrel rear cover are sequentially connected from front to back; the air collecting barrel is matched with the air collecting barrel rear cover to form the air collecting channel, the air penetrating grid plate is arranged inside the air collecting barrel, and the motor main body is abutted between the air penetrating grid plate and the air collecting barrel rear cover.
3. The brushless electric spray gun of claim 2, wherein: a motor positioning column is arranged between the front end of the motor main body and the ventilation grid plate in a propping mode, and the motor positioning column is respectively matched with the motor main body and the ventilation grid plate in a positioning mode.
4. The brushless electric spray gun of claim 2 or 3, wherein: the rear end of the motor main body is provided with a fan shell covering the outside of the impeller, a sealing sleeve is sleeved outside the fan shell, the outer wall of the sealing sleeve is in sealing fit with the inner wall of the rear cover of the wind collecting barrel, and the rear end of the sealing sleeve is axially abutted to the wind collecting barrel.
5. The brushless electric spray gun of claim 1, wherein: the lateral wall of grip handle is provided with the louvre, the inside of grip handle is formed with and flows through the air convection passageway of drive controller, the one end of air convection passageway with the louvre intercommunication, the other end of air convection passageway is connected to the air inlet end of collection wind passageway.
6. The brushless electric spray gun of claim 1, wherein: the casing is provided with a speed regulation knob, and the speed regulation knob is electrically connected with the driving controller.
7. The brushless electric spray gun of claim 1, wherein: the needle cylinder subassembly includes needle cylinder and needle cylinder spring, the needle cylinder with the nozzle corresponds the cooperation, the needle cylinder spring support locate the needle cylinder with between the rifle body, the needle cylinder spring is used for making the needle cylinder has the shutoff all the time the motion trend of nozzle, the trigger with the needle cylinder linkage cooperation, the rifle body is formed with the infusion pipeline, the one end of infusion pipeline with the straw is connected, the other end with the needle cylinder installation cavity intercommunication.
8. The brushless electric spray gun of claim 1, wherein: the rear end of the gun body is provided with a one-way valve used for limiting fluid media to flow to the gun body only from the air collecting channel, and the input end of the one-way valve is communicated with the air outlet end of the air collecting channel.
9. The brushless electric spray gun of claim 1, wherein: the rear end of the casing is provided with a casing rear cover with an air inlet, and dustproof cotton is arranged between the air inlet and the air inlet end of the air collecting channel.
10. The brushless electric spray gun of claim 1, wherein: the power supply is a lithium battery which is detachably arranged at the bottom of the holding handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010882186.3A CN111992348B (en) | 2020-08-28 | 2020-08-28 | Brushless electric spray gun |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010882186.3A CN111992348B (en) | 2020-08-28 | 2020-08-28 | Brushless electric spray gun |
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|---|---|
| CN111992348A true CN111992348A (en) | 2020-11-27 |
| CN111992348B CN111992348B (en) | 2022-08-30 |
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| CN202010882186.3A Active CN111992348B (en) | 2020-08-28 | 2020-08-28 | Brushless electric spray gun |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113976345A (en) * | 2021-10-29 | 2022-01-28 | 宁波家瑞工具制造有限公司 | Centrifugal fan blade spray gun |
| CN115318477A (en) * | 2022-08-25 | 2022-11-11 | 一汽奔腾轿车有限公司 | Hand-held electric water spraying device for defrosting test of whole vehicle |
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| US20050269425A1 (en) * | 2004-06-04 | 2005-12-08 | J. Wagner Gmbh | Spray gun |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113976345A (en) * | 2021-10-29 | 2022-01-28 | 宁波家瑞工具制造有限公司 | Centrifugal fan blade spray gun |
| CN115318477A (en) * | 2022-08-25 | 2022-11-11 | 一汽奔腾轿车有限公司 | Hand-held electric water spraying device for defrosting test of whole vehicle |
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| CN111992348B (en) | 2022-08-30 |
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Address after: 315500 No. 199, Songlin West Road, Shangqiao science and Technology Industrial Park, Xiwu street, Fenghua District, Ningbo City, Zhejiang Province Applicant after: Fenghua Weilder Electric Appliance Co.,Ltd. Address before: 315500 No.120, Wanzhu Wanxing Road, Dayan Town, Fenghua District, Ningbo City, Zhejiang Province Applicant before: Fenghua Weilder Electric Appliance Co.,Ltd. |
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