CN101844119B - Backpack type vibration-reduction and energy-saving spraying machine - Google Patents
Backpack type vibration-reduction and energy-saving spraying machine Download PDFInfo
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- CN101844119B CN101844119B CN200910029582A CN200910029582A CN101844119B CN 101844119 B CN101844119 B CN 101844119B CN 200910029582 A CN200910029582 A CN 200910029582A CN 200910029582 A CN200910029582 A CN 200910029582A CN 101844119 B CN101844119 B CN 101844119B
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Abstract
The invention relates to a backpack type vibration-reduction and energy-saving spraying machine. Four springs are designed between a supporting frame and a fan shell to reduce the vibration of a fan. An anti-vibration cushion is designed on the supporting frame so that an operator feels soft and comfortable when carrying the spraying machine, and the anti-vibration cushion also prevents vibration so that the operator is not easy to generate feel fatigue. An integral structure is designed on a fan impeller so that dynamic balance and static balance achieve the design requirements, and the fan has less low vibration frequency when running at high speed. For certain noises generated by a gasoline engine and the fan, the backpack type vibration-reduction and energy-saving spraying machine adopts an advanced silencer to forcedly and effectively lower the noise of the gasoline engine and the fan, thereby achieving the requirement of environmental protection and having safety. Because the included angle of a spray head shell and a regulating valve is 45 degrees, the backpack type vibration-reduction and energy-saving spraying machine has the advantages of large liquid discharge, small resistance, difficult no easy generation of a liquid dropping phenomenon and high working efficiency. A control switch centralizes liquid medicine control and the accelerator control of the gasoline engine and is arranged on an air outlet pipe so that two switches are positioned in front of the operator, and then the backpack type vibration-reduction and energy-saving spraying machine has convenient operation. The By designing the gasoline engine is in to an overhead hook type, the backpack type vibration-reduction and energy-saving spraying machine has light weight, remote spraying, high power, less low oil consumption, low noise and less vibration frequency, , and achieves the effects of energy saving and emission reduction.
Description
Technical field
The present invention relates to a kind of equipment for plant protection that is applied in the agricultural, particularly a kind of Backpack type vibration-reduction and energy-saving spraying machine.
Background technology
Along with agriculture and forestry are constantly developed; The disease and pest breeding potential is also increasing, is spreading; Along with the variation of the ecological balance, requiring of equipment for plant protection is increasingly high, and equipment for plant protection constantly develops to the high-technology field direction; Particularly the agrosprayer utilization rate is increasingly high, becomes indispensable a member in the equipment for plant protection.In present prior art, spraying machine generally is divided into two kinds, and a kind of is large-scale spraying machine; This spraying machine is made up of running gear, atomization system, blower fan system, control system and instrument etc.; Though production efficiency is high, atomize, the soup utilization rate is high, noise is big, and environment protecting is poor; Expensive, general peasant household cannot afford.Another kind is small-sized knapsack sprayer, and it mainly is made up of explosive barrel, spray gun and hand pump.The people backs on the body explosive barrel during the spray medicine, and a hand is taken spray gun, and the another hand constantly shakes the crank of hand pump, the spray while walking.Though this spraying machine low price, labour intensity is big, and the operator will carry explosive barrel on the body and constantly walk, and also will ceaselessly shake crank, and is time-consuming, works at the end of the day, and the skin of back has all been galled by band.And because the pressure transient of hand pump, fogging degree is fluctuation thereupon also, causes the waste of soup.Because hand pump pressure is little, the shower nozzle spray area is little, so inefficiency.The engine-driven knapsack sprayer of selling in the market, gasoline engine be positive equipment always, and when the operator bore the engine-driven atomiser operation, the vibration of gasoline engine was directly delivered to operator's back, and noise is big, makes the operator produce fatigue.The vibration of gasoline engine has caused plastics medicine-chest and support to damage easily.The soup switch is installed on the discharge pipe, and away from the Oil Switch of gasoline engine, the operator is when bearing the engine-driven atomiser operation, and these two switches are positioned at the operator one in front and one in back, cause inconvenient operation.Rotating sprinkler fluid resistance is bigger, often has the generation of dropping liquid phenomenon, sprays inhomogeneously, and operating efficiency is lower.Fan blade on the blower fan is designed to split-type structural, and the dynamic balancing of impeller and static balance can't reach designing requirement, causes that noise is big to can not get assurance with vibration, security reliability.A lot of in recent years related scientific research mechanisms and researcher remove to explore, research and solve many potential problems of this machinery, though on this machine technology, done the gratifying improvement in many places, still exist a key technology difficult problem that does not overcome as yet in practice.
Summary of the invention
The objective of the invention is to overcome above deficiency, provide a kind of reasonable in design, advanced technology, energy-conservation, easy to operate, good damping result, noise are little, and labour intensity is low, safety, far firing range, the Backpack type vibration-reduction and energy-saving spraying machine of high efficiency.
The technical solution adopted for the present invention to solve the technical problems is: contain medicine-chest, inlet valve, blower fan, silencer, bearing support, spark plug, air cleaner, hose elbow, discharge pipe, carburetor, gauge tap, Oil Switch, gasoline engine, oil circuit breaker, starting handle, liquid outlet, fuel tank, infusion tube, control valve, shower nozzle, plastic flexible pipe, screen pack, vibrationproof cushion, braces, shock-absorbing spring, soup control lever, compression spring, valve rod, medicine liquid outlet, retainer plate, shower nozzle guard; Frame is the L type; Machine topmost is a medicine-chest; The center is provided with a circular medicine-chest mouth above the medicine-chest; Medicine-chest mouth the inside is provided with a screen pack, and screen pack is provided with a plastic flexible pipe and is connected with the gas outlet of inlet valve inner face, is provided with the medicine-chest lid above the medicine-chest mouth; Be provided with below the left side of medicine-chest that interface is connected on an interface and the inlet valve; The interface of inlet valve below is connected with fan interface, and the lower right of medicine-chest is provided with a liquid outlet, and infusion tube of liquid outlet connection is connected with control valve on the shower nozzle; Be provided with impeller in the blower fan, the main shaft on the gasoline engine is connected with impeller on the blower fan.Impeller is an overall structure, and blower fan is provided with the blower fan case, and the blower fan case is the Kraft formula, is provided with a fuel tank at blower fan case upper position; The fuel tank upper right side is provided with a fuel tank cap, and position, fuel tank lower right is provided with an oil circuit breaker, and oil circuit breaker below is provided with a petroleum pipeline, and petroleum pipeline is connected with oil nozzle interface on the carburetor; Carburetor stretches out steel cable and is connected with Oil Switch, and on the blower fan case, the left position is provided with a silencer, and the silencer outside is provided with the silencer case; Blower fan case center and on the lower side the position be provided with gasoline engine, gasoline engine is reversal of the natural order of things assembling, middle part, gasoline engine top position is provided with starting handle, the gasoline engine lower right is provided with spark plug; Position, blower fan case lower right is provided with carburetor, and the carburetor left side is connected with gasoline engine, and the right side is connected with air cleaner, and exit, blower fan case lower right is connected with hose elbow; The other end of hose elbow is connected with discharge pipe, and discharge pipe center position on the lower side is provided with gauge tap, and Oil Switch is connected with carburetor through steel wire rope; The gauge tap top is provided with the soup control lever, and gauge tap inside is provided with compression spring, and compression spring is contained on the valve rod; Gauge tap is divided into two sections with infusion tube, and gauge tap is provided with medicine liquid outlet up and down, and last medicine liquid outlet is connected with last infusion tube; The other end of last infusion tube is connected with control valve, and following medicine liquid outlet is connected with following infusion tube, and the other end of following infusion tube is connected with liquid outlet on the medicine-chest; Gauge tap is connected with retainer plate, is fixed on the discharge pipe, and the discharge pipe apical position is provided with shower nozzle; Shower nozzle outside one deck is a nozzle housing, and the top is provided with the shower nozzle guard.On nozzle housing one side, be provided with control valve; The Blower Housing bottom is provided with bearing support; The Blower Housing back is respectively equipped with a shock-absorbing spring on four angles, and shock-absorbing spring is connected with bearing support, and the vibrationproof cushion is located on the bearing support face; Bearing support is provided with braces, has constituted a Backpack type vibration-reduction and energy-saving spraying machine.
The know-why that this spraying machine adopts is: utilize the power of gasoline engine, the impeller that drives on the blower fan runs up, and produces blast; Interface on the blower fan links to each other with inlet valve; Inlet valve links to each other with the outlet of medicine-chest lower end, through inlet valve blast is transported in the medicine-chest, makes and produces forced draft in the medicine-chest; Force the soup in the medicine-chest to flow into gauge tap smoothly through flexible pipe, by the flow size of gauge tap control soup from liquid outlet.The exit of blower fan is connected with hose elbow, and hose elbow is provided with discharge pipe, and the discharge pipe top is provided with shower nozzle; Be provided with a control valve near the shower nozzle place, control valve is connected with gauge tap through flexible pipe, and blower fan produces high pressure draught and gets into discharge pipe; Open gauge tap, make soup flow directly into the shower nozzle place, soup is ejected from shower nozzle through high pressure draught; Picture fog precipitation formula, maximum range reaches 11-13 rice.As it is too far away to control range, can finely tune Oil Switch, and the control carburetor is exported oil mass to gasoline engine, and the speed of gasoline engine is lowered, and the blast of blower fan and then descends synchronously, and range straggling will reduce, and reaches required range straggling.Through control valve the flow of soup is finely tuned control, control medicinal liquid flow size.In order to reduce this machine vibration frequency, four springs between bearing support and Blower Housing, have been designed, the vibration of Reduction of Students' Study Load blower fan.On bearing support, designed a vibrationproof cushion, the operator carries spraying machine, feels soft comfortable, again vibration proof.On draught fan impeller, designed overall structure, made dynamic balancing and static balance reach designing requirement, blower fan is when running up, and vibration frequency is little, and noise is low.Gasoline engine and blower fan produce certain noise, have adopted advanced silencer, force gasoline engine and fan noise to obtain reducing effectively, reach the requirement of environmental regulations.Gasoline engine design reversely hung Yong is compared with common gasoline engine, and power increases, and fuel consumption is little, complete machine weight saving, and noise is little.This machine is through technical appraisement, and this machine is in light weight, sprays far, and power is big, and fuel consumption is little, and noise is low, and vibration frequency is little, reaches the effect of energy-saving and emission-reduction.The operator be difficult for to produce tiredly in operating process, and advanced technology reaches the top standard of domestic like product.Be the building a New Socialist Countryside service.
The invention has the beneficial effects as follows: in order to reduce this machine vibration frequency, between bearing support and Blower Housing, designed four springs, the vibration of Reduction of Students' Study Load blower fan.On bearing support, designed a vibrationproof cushion, the operator carries spraying machine, feels soft comfortable, again vibration proof.The vibration of gasoline engine is through the vibration damping of shock-absorbing spring during operation, and its vibration reduces on bearing support greatly, and the operator is difficult for producing tired.Medicine-chest and bearing support are injection molded into an integral body, and vibration frequency is low, and medicine-chest is not easy to be damaged.On draught fan impeller, designed overall structure, made dynamic balancing and static balance reach designing requirement, blower fan is when running up, and vibration frequency is little.The certain noise that gasoline engine and blower fan produce has adopted advanced silencer, forces gasoline engine and fan noise to obtain reducing effectively, reaches environmental requirement, again safety.Gasoline engine design reversely hung Yong, fuel consumption is little, and power increases, complete machine weight saving, noise is little.Nozzle housing and control valve angle are 45 °, and liquid outlet quantity is big, and resistance is little, are difficult for producing dropping liquid phenomenon, high efficiency.Gauge tap concentrates in together the Throttle Opening Control of soup control and gasoline engine, and is arranged on the discharge pipe, make these two switches all be positioned at the operator in face of, easy to operate.The import of discharge pipe is sleeved in the outlet of hose elbow, and good seal performance is connected firmly.This machine is in light weight, sprays far, and power is big, and fuel consumption is little, and noise is low, and vibration frequency is little, reaches the effect of energy-saving and emission-reduction.The operator be difficult for to produce tiredly in operating process, and advanced technology reaches the top standard of domestic like product, is the New Countryside Construction service better.
Description of drawings
Be to combine accompanying drawing and embodiment that the present invention is further described below:
Fig. 1 is a Backpack type vibration-reduction and energy-saving spraying machine master TV structure sketch map
Fig. 2 is a Backpack type vibration-reduction and energy-saving spraying machine left side TV structure sketch map
Fig. 3 is a Backpack type vibration-reduction and energy-saving spraying machine gauge tap structural representation
Fig. 4 is a Backpack type vibration-reduction and energy-saving spraying machine nozzle structure sketch map
Fig. 5 is a Backpack type vibration-reduction and energy-saving spraying machine shower nozzle guard sketch map
In the drawings: 1. medicine-chest; 2. inlet valve; 3. blower fan; 4. silencer; 5. bearing support; 6. spark plug; 7. air cleaner; 8. hose elbow; 9. discharge pipe; 10. carburetor; 11. gauge tap; 12. Oil Switch; 13. gasoline engine; 14. oil circuit breaker; 15. starting handle; 16. liquid outlet; 17. fuel tank; 18. infusion tube; 19. control valve; 20. shower nozzle; 21. plastic flexible pipe; 22. screen pack; 23. vibrationproof cushion; 24. braces; 25. shock-absorbing spring; 26. soup control lever; 27. compression spring; 28. valve rod; 29. medicine liquid outlet; 30. retainer plate; 31. shower nozzle guard
The specific embodiment
In Fig. 1: medicine-chest 1 mainly is used to hold soup, and center, medicine-chest 1 top is provided with circular medicine-chest mouth, is provided with the medicine-chest lid above, and the inside is provided with screen pack 22, and effectively the impurity in filtering liquid medicine and the aqueous mixtures prevents that impurity from causing damage to machine.Utilize the power of gasoline engine 13, the impeller that drives on the blower fan 3 runs up, and produces blast; Inlet valve 2 is connecting medicine-chest 1 left lower end outlet and the outlet of blower fan 3 left upper ends up and down respectively; The air-flow that produces during blower fan 3 work provides wind pressure, and general mood stream is through the gas outlet of inlet valve 2 inner faces; Through plastic flexible pipe 21 air-flow is transported to screen pack 22; Through inlet valve 2 blast is transported in the medicine-chest 1, guarantees that the soup in the medicine-chest 1 flows out from bottom-right liquid outlet 16 normally smoothly, infusion tube 18 of liquid outlet 16 connections is connected with control valve 19 on the shower nozzle 20.Blower fan 3 housings are unitary circular structures, and good seal performance can not leaked out, and are provided with impeller in blower fan 3 housings, are the overall structures of injection moulding once-forming, and noise is little, and the vibration frequency of generation is lower.Fuel tank 17 provides power fuel for gasoline engine 13.The silencer 4 that the blower fan 3 housing left sides are provided with is mainly handled the noise of gasoline engine 13 and blower fan 3, reduces noise, and protection operator's ear does not produce tinnitus.Adopt reversely hung Yongs near the gasoline engine on silencer 4 right sides 13, power is big, and is energy-conservation, and fuel consumption is few.Be provided with starting handle 15 above the gasoline engine 13, pulling starting handle 15 makes the spark ignition gasoline of spark plug 6, starts gasoline engine 13, starts working.The wheel rotation that gasoline engine 13 drives on the blower fan 3 produces blast.Carburetor 10 is located between gasoline engine 13 and the air cleaner 7; Petroleum pipeline is connected with the fuel outlet of fuel tank 17 bottom right faces; The oil circuit breaker 14 that the fuel outlet place is provided with, the supply of control gasoline engine 13 oil, carburetor 10 stretches out steel cable and is connected with Oil Switch 12; Control the size of the throttle output oil mass on the carburetor 10 through process oil door switch 12, thereby realize regulation and control gasoline engine 13 watt levels.Air cleaner 7 carries out isolated by filtration with the dust that air sucks, and can reduce power consumption, makes obtain prolonging the service life of gasoline engine 13.The bottom righthand side outlet of blower fan 3 is connected with hose elbow 8; Discharge pipe 9 is enclosed within the outlet of hose elbow 8; Good seal performance, be connected firmly; The size of the gauge tap 11 control medicinal liquid flows that discharge pipe 9 is provided with is regulated and control through gauge tap 11 and control valve 19 from the soup of medicine-chest 1 outlet, mainly regulates the flow that soup sprays on shower nozzle 20.
In Fig. 2: vibrationproof cushion 23 is arranged on the bearing support 5 of machine back; Acting as a cushion was used when the vibration-proof material that fill vibrationproof cushion 23 the insides supplied the operator to bear; The braces 24 that machine back bearing support 5 is provided with supplies the operator to bear use, mainly plays a damping effect, feels comfortably cool.Medicine-chest 1 is injection molded into an integral body with the bearing support 5 of machine back; Shock-absorbing spring 25 is by being bolted between blower fan 3 housings and the bearing support 5; The vibration of gasoline engine 13 is through the vibration damping of shock-absorbing spring 25 during operation; Its vibration is reduced on bearing support 5, and the operator is difficult for producing tired, makes medicine-chest 1 be not easy to damage.
In Fig. 3: gauge tap 11 tops are provided with soup control lever 26, and inside is provided with valve rod 28, and valve rod 28 is provided with compression spring 27; Spring is located at the top of valve rod 28; Housing position on the lower side is provided with medicine liquid outlet 29, and retainer plate 30 is arranged on the discharge pipe 9, fixes.Oil Switch 12 is provided with and is connected with gauge tap 11, is arranged on the retainer plate 30.By the flow size of gauge tap 11 control soups, the size of Oil Switch 12 control throttle output oil masses, thus realize regulation and control to gasoline engine 13 watt levels.The control of soup control and gasoline engine 13 power is set together, and it is easy to operate to be convenient to the operator.
In Fig. 4, Fig. 5: control valve 19 is arranged on shower nozzle 20 housings, mainly regulates the flow of medical liquid spraying, and control valve 19 is connected with infusion tube 18, according to the operation needs; Rotating regulation valve 19, shower nozzle 20 housings and control valve 19 angles are 45 °, liquid outlet quantity is big; Resistance is little, is difficult for producing dropping liquid phenomenon, high efficiency; Be sprayed on the agricultural plant what soup was uniformly distributed with, change different shower nozzle guards 31, make plant absorbing moisture content better according to the demand of the agricultural plant of difference.
Claims (1)
1. a Backpack type vibration-reduction and energy-saving spraying machine contains medicine-chest, inlet valve, blower fan, silencer, bearing support, spark plug, air cleaner, hose elbow, discharge pipe, carburetor, gauge tap, Oil Switch, gasoline engine, oil circuit breaker, starting handle, liquid outlet, fuel tank, infusion tube, control valve, shower nozzle, plastic flexible pipe, screen pack, vibrationproof cushion, braces, shock-absorbing spring, soup control lever, compression spring, valve rod, medicine liquid outlet, retainer plate, shower nozzle guard, it is characterized in that: frame is the L type, and machine topmost is a medicine-chest; The center is provided with a circular medicine-chest mouth above the medicine-chest, and medicine-chest mouth the inside is provided with a screen pack, and screen pack is provided with a plastic flexible pipe and is connected with the gas outlet of inlet valve inner face, is provided with the medicine-chest lid above the medicine-chest mouth; Be provided with below the left side of medicine-chest that interface is connected on an interface and the inlet valve, the interface of inlet valve below is connected with fan interface, and the lower right of medicine-chest is provided with a liquid outlet, and infusion tube of liquid outlet connection is connected with control valve on the shower nozzle; Be provided with impeller in the blower fan, the main shaft on the gasoline engine is connected with impeller on the blower fan, and impeller is an overall structure, and blower fan is provided with the blower fan case; The blower fan case is the Kraft formula, is provided with a fuel tank at blower fan case upper position, and the fuel tank upper right side is provided with a fuel tank cap; Position, fuel tank lower right is provided with an oil circuit breaker, and oil circuit breaker below is provided with a petroleum pipeline, and petroleum pipeline is connected with oil nozzle interface on the carburetor; Carburetor stretches out steel cable and is connected with Oil Switch, and on the blower fan case, the left position is provided with a silencer; Silencer outside is provided with the silencer case, blower fan case center and on the lower side the position be provided with gasoline engine, gasoline engine is the reversal of the natural order of things assembling; Middle part, gasoline engine top position is provided with starting handle, and the gasoline engine lower right is provided with spark plug, and position, blower fan case lower right is provided with carburetor; The carburetor left side is connected with gasoline engine, and the right side is connected with air cleaner, and exit, blower fan case lower right is connected with hose elbow; The other end of hose elbow is connected with discharge pipe, and discharge pipe center position on the lower side is provided with gauge tap, and Oil Switch is connected with carburetor through steel wire rope; The gauge tap top is provided with the soup control lever, and gauge tap inside is provided with compression spring, and compression spring is contained on the valve rod; Gauge tap is divided into two sections with infusion tube, and gauge tap is provided with medicine liquid outlet up and down, and last medicine liquid outlet is connected with last infusion tube; The other end of last infusion tube is connected with control valve, and following medicine liquid outlet is connected with following infusion tube, and the other end of following infusion tube is connected with liquid outlet on the medicine-chest; Gauge tap is connected with retainer plate, is fixed on the discharge pipe, and the discharge pipe apical position is provided with shower nozzle; Shower nozzle outside one deck is a nozzle housing, and the top is provided with the shower nozzle guard, on nozzle housing one side, is provided with control valve; The Blower Housing bottom is provided with bearing support, and the Blower Housing back is respectively equipped with a shock-absorbing spring on four angles, and shock-absorbing spring is connected with bearing support; The vibrationproof cushion is located on the bearing support face, and bearing support is provided with braces, has constituted a Backpack type vibration-reduction and energy-saving spraying machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910029582A CN101844119B (en) | 2009-03-26 | 2009-03-26 | Backpack type vibration-reduction and energy-saving spraying machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910029582A CN101844119B (en) | 2009-03-26 | 2009-03-26 | Backpack type vibration-reduction and energy-saving spraying machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101844119A CN101844119A (en) | 2010-09-29 |
| CN101844119B true CN101844119B (en) | 2012-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910029582A Expired - Fee Related CN101844119B (en) | 2009-03-26 | 2009-03-26 | Backpack type vibration-reduction and energy-saving spraying machine |
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| Country | Link |
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| CN (1) | CN101844119B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106472464A (en) * | 2015-08-26 | 2017-03-08 | 重庆市瑰邦农业开发有限公司 | A kind of knapsack electric atomizing sprayer for plant protection |
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|---|---|---|---|---|
| CN1071102A (en) * | 1991-09-27 | 1993-04-21 | 中国农业机械化科学研究院 | Novel knapsack sprayer |
| CN1657178A (en) * | 2005-02-25 | 2005-08-24 | 梅州市风华喷雾喷灌机械设备有限公司 | Vehicle-carried ultra fine particle blowing sprayer |
| CN2820332Y (en) * | 2005-09-26 | 2006-09-27 | 丁睿杰 | Motor sprayer |
| CN2855547Y (en) * | 2005-09-09 | 2007-01-10 | 黎翔 | Knapsack sprayer for spraying liquid or powder using mini-electric pump |
| CN101073795A (en) * | 2007-04-11 | 2007-11-21 | 南通黄海药械有限公司 | Backpack mechanically-driven atomizer with water shut-off protecting function |
| CN201064751Y (en) * | 2007-06-06 | 2008-05-28 | 山东农业大学 | Greenhouse type electric mist sprayer |
-
2009
- 2009-03-26 CN CN200910029582A patent/CN101844119B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1071102A (en) * | 1991-09-27 | 1993-04-21 | 中国农业机械化科学研究院 | Novel knapsack sprayer |
| CN1657178A (en) * | 2005-02-25 | 2005-08-24 | 梅州市风华喷雾喷灌机械设备有限公司 | Vehicle-carried ultra fine particle blowing sprayer |
| CN2855547Y (en) * | 2005-09-09 | 2007-01-10 | 黎翔 | Knapsack sprayer for spraying liquid or powder using mini-electric pump |
| CN2820332Y (en) * | 2005-09-26 | 2006-09-27 | 丁睿杰 | Motor sprayer |
| CN101073795A (en) * | 2007-04-11 | 2007-11-21 | 南通黄海药械有限公司 | Backpack mechanically-driven atomizer with water shut-off protecting function |
| CN201064751Y (en) * | 2007-06-06 | 2008-05-28 | 山东农业大学 | Greenhouse type electric mist sprayer |
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| CN101844119A (en) | 2010-09-29 |
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