CN108704779A - A kind of spray gun - Google Patents
A kind of spray gun Download PDFInfo
- Publication number
- CN108704779A CN108704779A CN201810633386.8A CN201810633386A CN108704779A CN 108704779 A CN108704779 A CN 108704779A CN 201810633386 A CN201810633386 A CN 201810633386A CN 108704779 A CN108704779 A CN 108704779A
- Authority
- CN
- China
- Prior art keywords
- spray
- watering
- positioning
- sealing ring
- liquid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 239000007921 spray Substances 0.000 title claims abstract description 137
- 239000007788 liquid Substances 0.000 claims abstract description 75
- 238000007789 sealing Methods 0.000 claims description 75
- 230000005540 biological transmission Effects 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 11
- 230000033001 locomotion Effects 0.000 claims description 6
- 230000007246 mechanism Effects 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 3
- 210000002421 cell wall Anatomy 0.000 claims description 3
- 238000010992 reflux Methods 0.000 abstract description 3
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 230000009467 reduction Effects 0.000 description 4
- 238000013016 damping Methods 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 101100298225 Caenorhabditis elegans pot-2 gene Proteins 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
- B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
- B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
- B05B9/047—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump supply being effected by follower in container, e.g. membrane or floating piston, or by deformation of container
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
Abstract
The present invention provides a kind of spray gun, including casing, watering can, nozzle and the gun body in casing, the spray chamber being connect with watering can is equipped in gun body, piston rod and liquid valve bar are equipped in spray chamber, spray chamber is equipped with the connector being connected to watering can, piston rod is moved back and forth in spray chamber being extracted liquid to spray chamber by connector from watering can, check valve is equipped at connector, so that liquid can only be entered in spray chamber from watering can by connector and cannot be entered in watering can from spray chamber, avoid liquid reflux, allow and is farthest sprayed from nozzle from the liquid extracted in watering can, improve the efficiency that spray gun sprays liquid, to promote the spray efficiency of spray gun.
Description
Technical field
The present invention relates to a kind of spray guns.
Background technology
Spray gun is a kind of equipment carrying out atomization process to coating, is mainly sprayed and is obtained to being coated workpiece surface
Beautiful, uniform coat, main operational principle are to utilize piston rod internal pressure, allow in liquid container space to increase, air pressure
Reduce, so that liquid to be drawn into from watering can in liquid container, then allow in liquid container space reduces, air pressure increases, to will
Liquid in liquid container extrudes, during space reduces in liquid container, liquid can by liquid container and watering can it
Between communicating passage reenter in watering can so that the spray efficiency of spray gun is relatively low.
Invention content
The purpose of the present invention is to provide a kind of spray guns that spray efficiency is high.
In order to achieve the above object, the present invention adopts the following technical scheme that：A kind of spray gun, including casing, watering can, nozzle and
Gun body in casing, is equipped with spray chamber connect with watering can in gun body, equipped with piston rod and liquid valve bar in spray chamber, on spray chamber
Equipped with the connector being connected to watering can, piston rod moved back and forth in spray chamber with by liquid from watering can by connector extract to
Being equipped in spray chamber, at connector prevents liquid from flowing back into the check valve in watering can from spray chamber.
Further, suction pipe is equipped in the watering can, the upper end of suction pipe is equipped with the communicating passage being connected to connector, unidirectionally
Valve is between communicating passage and connector.
Further, the check valve includes driving column and the cover board for blocking communicating passage, is set on the outer wall of gun body
There is a locating slot, be equipped with the first spring being placed on driving column in locating slot, the first spring one end contacts on driving column, the other end
It contacts on the cell wall of locating slot.
Further, it is equipped with the first sealing ring at the check valve and communicating passage cooperation.
Further, it is equipped with third sealing ring at the communicating passage and gun body cooperation.
Further, the inner wall of the spray chamber is equipped with installation annular groove, is equipped with and piston rod tight fit in installation annular groove
Sealing element.
Further, the sealing element includes the second sealing ring and O-ring seal, and the second sealing ring includes being set in piston
The first sealing ring on bar and with vertically disposed second sealing ring of the first sealing ring, O-ring seal is sheathed on the first sealing ring
It is upper and with the first sealing ring tight fit, the peripheral surface of the second sealing ring matches with annular groove is installed.
Further, the spray gun further includes the motor and transmission mechanism being set in casing, and motor includes motor shaft, transmission
Mechanism includes the bent axle being connect with electric machine shaft driving, connects the connecting rod of crankshaft and piston bar, and motor shaft drives crank rotation, bent axle
Connecting rod is driven to move back and forth, connecting rod drives piston rod to be moved back and forth in spray chamber.
Further, the piston rod includes linkage section, and linkage section is equipped with connecting hole, and connecting rod includes positioning pin and positioning
Section, positioning section include two positioning plates disposed in parallel, and first positioning hole and second location hole are respectively equipped on two positioning plates,
Positioning pin sequentially passes through first positioning hole, connecting hole and second location hole to connect linkage section and positioning section.
Further, the linkage section includes the positioning surface of positioning plate cooperation, and connecting rod further includes beam, and beam is located at
Between positioning surface and positioning plate.
After adopting the above technical scheme, the invention has the advantages that：
1, pass through at connector be arranged check valve so that liquid by connector can only enter from watering can in spray chamber without
It can enter in watering can from spray chamber, avoid liquid reflux so that can be farthest from nozzle from the liquid extracted in watering can
It sprays, the efficiency that spray gun sprays liquid is improved, to promote the spray efficiency of spray gun.
2, by being arranged check valve between communicating passage and connector so that the liquid at connector can only one-way flow
Logical, liquid cannot flow back to watering can from spray chamber so that it can farthest be sprayed from nozzle from the liquid extracted in watering can,
To promote the spray efficiency of spray gun.
3, column and cover board are driven by setting, drives and be arranged with the first spring on column, the first spring one end contacts at driving
On column, the other end contact on the hole wall of locating slot, when spray cavity space increase, air pressure reduce, the gas between spray chamber and watering can
Pressure difference is more than the elastic force of the first spring, and the first spring-compressed, the cooperation between cover board and communicating passage separates, liquid from watering can according to
It is secondary to be entered in spray chamber by suction pipe, communicating passage and connector；When spray cavity space reduces, air pressure increases, spray chamber and watering can it
Between draught head be less than the elastic force of the first spring, the elastic force of the first spring makes cover board coordinate with communicating passage so that cover board blocks
Firmly communicating passage, liquid cannot flow back to watering can from spray chamber so that the liquid extracted from watering can be farthest from spray
It is sprayed in mouth, to promote the spray efficiency of spray gun.
4, by the way that the first sealing ring is arranged at check valve and communicating passage cooperation so that check valve coordinates with communicating passage
When, the better tightness between check valve and communicating passage is further ensured that liquid cannot flow back to watering can from spray chamber so that from
The liquid extracted in watering can farthest be sprayed from nozzle, further promote the spray efficiency of spray gun.
5, by the way that third sealing ring is arranged, the liquid at check valve cannot pass through the seam between communicating passage outer wall and gun body
Gap reenters watering can, is further ensured that liquid cannot flow back to watering can from spray chamber so that the liquid extracted from watering can be with
It is farthest sprayed from nozzle, further promotes the spray efficiency of spray gun.
6, it because piston rod moves back and forth is easy that liquid is driven to flow into the gap between piston rod and spray chamber inner wall, by setting
Set sealing element, sealing element and piston rod tight fit so that liquid cannot be flowed out by sealing element, liquid can be effectively prevent from spray
Chamber leaks, and ensures that the liquid in spray chamber can farthest be sprayed from nozzle, to further promote the spraying effect of spray gun
Rate；Meanwhile also ensureing that liquid does not interfere with the other component in casing, to promote the service life of spray gun.
7, by the way that the second sealing ring and O-ring seal is arranged, the second sealing ring includes the first sealing ring and the second sealing ring,
O-ring seal is set on the first sealing ring, and with the first sealing ring tight fit, make O-ring seal by the first sealing ring and work
Stopper rod compresses so that very close to each other between the first sealing ring and piston rod liquid to be allowed to pass through；Second sealing ring and first close
Seal ring be vertically arranged and the peripheral surface of the second sealing ring with installation annular groove match so that the second sealing ring with installation annular groove it
Between it is also very close to each other liquid can be allowed to pass through, and then ensure sealing element can effectively prevent liquid from spray chamber leak, ensure spray chamber
Interior liquid can farthest be sprayed from nozzle, to promote the spray efficiency of spray gun.
8, drive crank rotation, bent axle that connecting rod is driven to move back and forth by the way that motor shaft is arranged, connecting rod drives piston rod along spray
The axially reciprocating of chamber is controlled the movement of piston rod by machine driving, compared to realize vacuum liquid-absorbing and compression injection
In existing electromagnetic type structure, the structure is more rationally compact, and transmission is more stable, and service life is longer.
9, by being arranged linkage section and positioning section, linkage section is equipped with connecting hole, positioning section be equipped with first positioning hole and
Second location hole, positioning pin sequentially pass through first positioning hole, connecting hole and second location hole and are connected to linkage section and positioning section
Together, and then the connection of connecting rod and piston rod is realized so that connection between connecting rod and piston rod is simple, conveniently, compared to it
Before connector connection connecting rod and piston rod is separately provided, optimize the structure of spray gun so that the structure of spray gun is simpler, tight
It gathers.
10, by the way that positioning surface is arranged so that the connection between linkage section and positioning section is more stablized, by the way that damping is arranged
Pad, by beam be arranged between positioning surface and positioning plate, the transmission between connecting rod and piston rod play damping, buffering work
With so that the transmission between connecting rod and piston rod is more steady, and promotes the service life of connecting rod.
Description of the drawings
The invention will be further described below in conjunction with the accompanying drawings：
Fig. 1 is the sectional view of spray gun of the present invention.
Fig. 2 is the enlarged drawing at A in Fig. 1.
Fig. 3 is the enlarged drawing at B in Fig. 1.
Fig. 4 is the structural schematic diagram of piston rod in spray gun of the present invention.
Fig. 5 is the structural schematic diagram of connecting rod in spray gun of the present invention.
Fig. 6 is the enlarged drawing at C in Fig. 1.
Marked the names of the parts are as follows in figure：
1, casing；2, watering can；21, suction pipe；22, communicating passage；221, third sealing ring；3, nozzle；4, gun body；41, it sprays
Chamber；411, connector；42, piston rod；421, linkage section；4211, connecting hole；4212, positioning surface；43, liquid valve bar；44, fixed
Position slot；45, sealing element；451, the second sealing ring；4511, the first sealing ring；4512, the second sealing ring；452, O-ring seal；
46, sealing cover；47, locating flange；5, check valve；51, column is driven；52, cover board；53, the first spring；54, the first sealing ring；6,
Motor；61, motor shaft；7, transmission mechanism；71, bent axle；711, axis body；712, biasing post；713, positioning column；72, connecting rod；721,
Positioning section；722, positioning plate；7221, first positioning hole；7222, second location hole；723, positioning pin；724, beam；73, outer
Shell；74, first gear；75, second gear.
Specific implementation mode
As shown in Figure 1, the present invention provides a kind of spray gun, specially lithium electric spray gun, including casing 1, watering can 2, nozzle 3 and set
In being equipped with the spray chamber 41 being connect with watering can 2 in the gun body 4 in casing 1, gun body 4, piston rod 42 and liquid valve are equipped in spray chamber 41
Bar 43, spray chamber 41 are equipped with the connector 411 that be connected to watering can 2, piston rod 42 in spray chamber 41 reciprocating motion with by liquid from
It is extracted to spray chamber 41 by connector 411 in watering can 2, check valve 5 is equipped at connector 411 so that liquid passes through connector
411 can only enter in spray chamber 41 from watering can 2 and cannot enter in watering can 2 from spray chamber 41, avoid liquid reflux so that from watering can 2
The liquid of middle extraction can farthest be sprayed from nozzle, the efficiency that spray gun sprays liquid be improved, to promote spray gun
Spray efficiency.
In the present embodiment, suction pipe 21 is equipped in watering can 2, it is logical that the upper end of suction pipe 21 is equipped with the connection being connected to connector 411
Road 22, check valve 5 is between communicating passage 22 and connector 411 so that liquid at connector 411 can only one-way flow,
Liquid cannot flow back to watering can 2 from spray chamber 41 so that it can farthest be sprayed from nozzle from the liquid extracted in watering can,
To promote the spray efficiency of spray gun.
In conjunction with Fig. 2, check valve 5 includes driving column 51 and the cover board 52 for blocking communicating passage 22, on the outer wall of gun body 4
The first spring 53 being placed on driving column 51 is equipped with equipped with locating slot 44, in locating slot 44,53 one end of the first spring contacts at drive
On dynamic column 51, the other end contact on the cell wall of locating slot 44, when space increases, air pressure reduces in spray chamber 41, spray chamber 41 and spray
Draught head between pot 2 is more than the elastic force of the first spring 53, the compression of the first spring 53, matching between cover board 52 and communicating passage 22
It closes and separates, liquid passes sequentially through suction pipe 21, communicating passage 22 and connector 411 from watering can 2 and enters in spray chamber 41；When in spray chamber 41
Space reduces, and air pressure increases, and the draught head between spray chamber 41 and watering can 2 is less than the elastic force of the first spring 53, the first spring 53
Elastic force makes cover board 52 coordinate with communicating passage 22 so that cover board 52 shelters from communicating passage 22, and liquid cannot be flow backwards from spray chamber 41
Return watering can 2 so that the liquid extracted from watering can 2 can farthest be sprayed from nozzle, to promote the spraying of spray gun
Efficiency.
The first sealing ring 54 is equipped at check valve 5 and 22 cooperation of communicating passage so that check valve 5 coordinates with communicating passage 22
When, the better tightness between check valve 5 and communicating passage 22 is further ensured that liquid cannot flow back to watering can 2 from spray chamber 41,
The liquid extracted from watering can 2 is farthest sprayed from nozzle, the spray efficiency of spray gun is further promoted.
Communicating passage 22 cannot pass through connection with third sealing ring 221, the liquid at check valve 5 is equipped at 4 cooperation of gun body
Gap between 22 outer wall of channel and gun body 4 reenters watering can 2, is further ensured that liquid cannot flow back to watering can from spray chamber 41
2 so that can farthest be sprayed from nozzle from the liquid extracted in watering can, further promote the spray efficiency of spray gun.
The inner wall of spray chamber 41 is equipped with installation annular groove, and the sealing element 45 with 42 tight fit of piston rod is equipped in installation annular groove,
Because piston rod 42 moves back and forth it is easy that liquid is driven to flow into the gap between piston rod 42 and 41 inner wall of spray chamber, it is close by being arranged
Sealing 45, sealing element 45 and 42 tight fit of piston rod so that liquid cannot be flowed out by sealing element 45, can effectively prevent liquid
It is leaked from spray chamber 41, ensures that the liquid in spray chamber 41 can farthest be sprayed from nozzle 3, to further promote spray gun
Spray efficiency；Meanwhile also ensureing that liquid does not interfere with the other component in casing, to promote the service life of spray gun.
Sealing element 45 includes the second sealing ring 451 and O-ring seal 452, and the second sealing ring 451 includes the first sealing ring
4511 and second sealing ring 4512, O-ring seal 452 be set on the first sealing ring 4511, and it is tight with the first sealing ring 4511
Cooperation, makes O-ring seal 452 compress the first sealing ring 4511 with piston rod 42 so that the first sealing ring 4511 and piston rod
It is very close to each other between 42 liquid to be allowed to pass through；Second sealing ring 4512 and the first sealing ring 4511 are vertically arranged and the second sealing
The peripheral surface of ring 4512 with installation annular groove match so that the second sealing ring 4512 and installation annular groove between it is also very close to each other can
To allow liquid to pass through, and then ensure that sealing element 45 can effectively prevent liquid from being leaked from spray chamber 41, ensures that the liquid in spray chamber can
Farthest to be sprayed from nozzle, to promote the spray efficiency of spray gun.
The rear end of gun body 4 is equipped with sealing cover 46, and groove is equipped in sealing cover 46, and when sealing element 45 fails, liquid can be with
It is flowed out from groove, prevents liquid from flowing to motor, inside gear-box.
Locating flange 47 is equipped between sealing cover 46 and sealing element 45, locating flange 47 is used for the position of fixing seals 45
It sets, is further ensured that the sealing effect of sealing element 45, and make the installation of sealing element 45 fairly simple.
In conjunction with Fig. 3, Fig. 4 and Fig. 5, piston rod 42 includes linkage section 421, and linkage section 421 is equipped with connecting hole 4211, connecting rod
72 include positioning pin 723 and positioning section 721, and positioning section 721 includes two positioning plates 722 disposed in parallel, two positioning plates 722
On be respectively equipped with first positioning hole 7221 and second location hole 7222, positioning pin 723 sequentially passes through first positioning hole 7221, connection
Hole 4211 and second location hole 7222 realize the company of connecting rod 72 and piston rod 42 to connect linkage section 421 and positioning section 721
It connects so that the connection between connecting rod 72 and piston rod 42 simply, conveniently, compared to connector is separately provided before connects connecting rod 72
With piston rod 42, the structure of spray gun is optimized so that the structure of spray gun is simpler, compact.
Linkage section 421 includes the positioning surface 4212 that positioning plate 722 coordinates so that between linkage section 421 and positioning section 721
Connection is more stablized.Connecting rod 72 further includes beam 724, and beam 724 is right between positioning surface 4212 and positioning plate 722
Damping, buffering are played the role of in transmission between connecting rod 72 and piston rod 42 so that the transmission between connecting rod 72 and piston rod 42
It is more steady, and promote the service life of connecting rod.
In conjunction with Fig. 6, spray gun further includes the motor 6 being set in casing 1 and transmission mechanism 7, and motor 6 includes motor shaft 61, is passed
Motivation structure 7 includes the bent axle 71 being sequentially connected with motor shaft 61, the connecting rod 72 for connecting bent axle 71 and piston rod 42,61 band of motor shaft
Dynamic crankshaft 71 rotates, and bent axle 71 drives connecting rod 72 to move back and forth, and connecting rod 72 drives piston rod 42 to be moved back and forth in spray chamber 41, from
And realize vacuum liquid-absorbing and compression injection, the movement of piston rod 42 is controlled by machine driving, compared to existing electromagnetic type knot
Structure, the structure is more rationally compact, and transmission is more stable, and service life is longer.
Specifically, bent axle 71 includes axis body 711, set on the biasing post 712 of 711 upper end of axis body and set on 711 lower end of axis body
Positioning column 713, biasing post 712 and connecting rod 72 be sequentially connected, and positioning column 713 passes through reduction box and is sequentially connected with motor shaft 61.
The advantages of this arrangement are as follows being sequentially connected by biasing post 712 and connecting rod 72, positioning column 713 passes through reduction box and motor shaft
61 are sequentially connected, to realize the reciprocating motion that the rotary motion of bent axle 71 is transformed into connecting rod 72, and then realize vacuum liquid-absorbing and
Compression injection, it is simple in structure, it easily realizes, and the operation is stable, reliable.
Reduction box includes that shell 73, the first gear 74 in shell 73 and second gear 75, first gear 74 are arranged
In on motor shaft 61, second gear 75 is sheathed on positioning column 713, and motor shaft 61 passes through first gear 74 and second gear 75
Engagement band dynamic crankshaft 71 rotates.The advantages of this arrangement are as follows by the way that first gear 74 to be sheathed on motor shaft 61, the second tooth
Wheel 75 is sheathed on positioning column 713, and motor shaft 61 is rotated by first gear 74 with the band dynamic crankshaft 71 that engages of second gear 75,
It to drive connecting rod 72 to move back and forth, and then realizes vacuum liquid-absorbing and compression injection, by increasing reduction box, improves the power of suction
The speed of degree and injection so that the liquid of ejection more be atomized and uniform.
It should be understood that spray gun can be rechargeable spray gun.
In addition to above preferred embodiment, the present invention also has other embodiments, those skilled in the art can be according to this
Invention makes various changes and modifications, and without departing from the spirit of the present invention, should all belong to appended claims of the present invention and determine
The range of justice.
Claims (10)
1. a kind of spray gun, including casing, watering can, nozzle and the gun body in casing, gun body is interior to be equipped with the spray being connect with watering can
Chamber, spray chamber is interior to be equipped with piston rod and liquid valve bar, and spray chamber is equipped with the connector being connected to watering can, and piston rod is reciprocal in spray chamber
Movement from watering can by connector being extracted liquid to spray chamber, which is characterized in that is equipped at the connector and is prevented liquid
Body flows back into the check valve in watering can from spray chamber.
2. spray gun according to claim 1, which is characterized in that be equipped with suction pipe in the watering can, the upper end of suction pipe be equipped with
The communicating passage of connector connection, check valve is between communicating passage and connector.
3. spray gun according to claim 2, which is characterized in that the check valve includes driving column and leads to for blocking connection
The outer wall of the cover board in road, gun body is equipped with locating slot, and the first spring being placed on driving column, the first spring one are equipped in locating slot
End contacts on driving column, the other end contacts on the cell wall of locating slot.
4. spray gun according to claim 2, which is characterized in that the check valve be equipped at communicating passage cooperation it is first close
Seal.
5. spray gun according to claim 2, which is characterized in that the communicating passage is sealed at gun body cooperation equipped with third
Circle.
6. spray gun according to claim 1, which is characterized in that the inner wall of the spray chamber is equipped with installation annular groove, mounting ring
The sealing element with piston rod tight fit is equipped in slot.
7. spray gun according to claim 6, which is characterized in that the sealing element includes the second sealing ring and O-ring seal,
Second sealing ring include be arranged the first sealing ring on the piston rod and with vertically disposed second sealing ring of the first sealing ring, O
Type sealing ring be sheathed on the first sealing ring and with the first sealing ring tight fit, the peripheral surface of the second sealing ring and installation annular groove
It matches.
8. spray gun according to claim 1, which is characterized in that the spray gun further includes the motor being set in casing and transmission
Mechanism, motor include motor shaft, and transmission mechanism includes the bent axle being connect with electric machine shaft driving, connects the company of crankshaft and piston bar
Bar, motor shaft drive crank rotation, bent axle that connecting rod is driven to move back and forth, and connecting rod drives piston rod to be moved back and forth in spray chamber.
9. spray gun according to claim 8, which is characterized in that the piston rod includes linkage section, and linkage section, which is equipped with, to be connected
Hole is connect, connecting rod includes positioning pin and positioning section, and positioning section includes two positioning plates disposed in parallel, is set respectively on two positioning plates
There are first positioning hole and second location hole, positioning pin to sequentially pass through first positioning hole, connecting hole and second location hole with the company of connection
Connect section and positioning section.
10. spray gun according to claim 9, which is characterized in that the linkage section includes the positioning surface of positioning plate cooperation, even
Bar further includes beam, and beam is between positioning surface and positioning plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810633386.8A CN108704779A (en) | 2018-06-20 | 2018-06-20 | A kind of spray gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810633386.8A CN108704779A (en) | 2018-06-20 | 2018-06-20 | A kind of spray gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108704779A true CN108704779A (en) | 2018-10-26 |
Family
ID=63871899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810633386.8A Pending CN108704779A (en) | 2018-06-20 | 2018-06-20 | A kind of spray gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108704779A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116673143A (en) * | 2023-05-30 | 2023-09-01 | 宁波芯辰智能电器有限公司 | Backflow-preventing electric spray gun |
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Address after: 321035 Industrial Development Zone, Xiaoshun Town, Jindong District, Jinhua City, Zhejiang Province Applicant after: Zhejiang Prade Electric Co.,Ltd. Address before: 321035 Zhejiang Prade Electric Appliance Co., Ltd., Xiaoshun Town Industrial Development Zone, Jindong District, Jinhua City, Zhejiang Province Applicant before: Zhejiang Prulde Electric Appliance Co.,Ltd. |