CN108910047B - Sprinkler and unmanned aerial vehicle adopting same - Google Patents
Sprinkler and unmanned aerial vehicle adopting same Download PDFInfo
- Publication number
- CN108910047B CN108910047B CN201810797132.XA CN201810797132A CN108910047B CN 108910047 B CN108910047 B CN 108910047B CN 201810797132 A CN201810797132 A CN 201810797132A CN 108910047 B CN108910047 B CN 108910047B
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- output shaft
- driving motor
- storage container
- water storage
- end cover
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 119
- 238000005507 spraying Methods 0.000 claims abstract description 39
- 230000000903 blocking effect Effects 0.000 claims abstract description 30
- 238000000034 method Methods 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims description 65
- 239000007921 spray Substances 0.000 claims description 19
- 210000000476 body water Anatomy 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000012856 packing Methods 0.000 claims 2
- 230000000694 effects Effects 0.000 description 11
- 230000001174 ascending effect Effects 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 239000003337 fertilizer Substances 0.000 description 3
- 239000000575 pesticide Substances 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 2
- 230000007123 defense Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D1/00—Dropping, ejecting, releasing or receiving articles, liquids, or the like, in flight
- B64D1/16—Dropping or releasing powdered, liquid, or gaseous matter, e.g. for fire-fighting
- B64D1/18—Dropping or releasing powdered, liquid, or gaseous matter, e.g. for fire-fighting by spraying, e.g. insecticides
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M7/00—Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
- A01M7/0025—Mechanical sprayers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C39/00—Aircraft not otherwise provided for
- B64C39/02—Aircraft not otherwise provided for characterised by special use
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U2101/00—UAVs specially adapted for particular uses or applications
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Insects & Arthropods (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Fertilizing (AREA)
Abstract
The spraying device comprises a driving motor and a spraying disc, wherein an output shaft of the driving motor is fixedly connected with the spraying disc, and a shell is arranged on the outer side of the driving motor; the method is characterized in that: a water storage container is arranged between the driving motor and the spraying disc along the axial direction of the output shaft, a water inlet and a water outlet are formed in the wall of the water storage container, the output shaft penetrates through the water outlet, and a first radial interval is formed between the inner edge of the water outlet and the output shaft; an end cover is arranged between the water storage container and the driving motor along the axial direction of the output shaft, the end cover covers the top opening of the water storage container, an assembly hole is formed in the end cover, and the output shaft penetrates through the assembly hole; at least one blocking structure is sleeved on the output shaft along the axial direction of the output shaft, and the blocking structure is positioned between the driving motor and the spraying disc; the unmanned aerial vehicle is provided with the spraying device.
Description
Technical Field
The invention relates to a spraying device and an unmanned aerial vehicle adopting the same.
Background
Unmanned aerial vehicles ("unmanned aerial vehicles"), abbreviated as "UAVs," are unmanned aerial vehicles that remotely fly and/or autonomously control flying. The unmanned aerial vehicle does not need a pilot to drive in the cabin, and the whole flying process is automatically completed under the control of electronic equipment. The unmanned plane does not need to be provided with any equipment related to pilots, so that more important equipment can be arranged in space and weight. Unmanned aerial vehicles can be divided into three major categories, namely military, civil and consumer grade, according to different fields of use. Aiming at civil unmanned aerial vehicles, the method is widely applied in the fields of video and aerial photography, traditional agriculture and forestry, industrial operation, disaster relief, public safety and consumption entertainment industry.
The unmanned aerial vehicle for agriculture is mainly used for applying pesticides/fertilizers, and the existing pesticides/fertilizers are sprayed, so that operators are exposed to chemical environment to cause unnecessary injury to human bodies, and therefore Unmanned Aerial Vehicles (UAVs) provided with spraying devices have become an emerging trend in the use of spraying pesticides/fertilizers.
Unmanned aerial vehicle mainly realizes through sprinkler system that the unmanned aerial vehicle is applied medicine, and current sprinkler in the present market, its working method mainly is centrifugal atomizing and hydraulic atomizing, in order to lighten the weight of whole system, unmanned aerial vehicle sprays and adopts centrifugal atomizer mostly, relies on the generator to drive the shower nozzle motor on the aircraft, gets rid of the liquid medicine, forms the droplet. The size of the fog drops can be realized by adjusting the rotating speed and the rotating disc structure of the spray head.
The sprinkler in the existing market has poor waterproof property due to the structural design, and in use, the liquid medicine is easy to enter the motor in the sprinkling process, so that the motor is corroded and shorted, and the reliability and the service life of the sprinkler are greatly reduced.
Disclosure of Invention
The invention provides a spraying device and an unmanned aerial vehicle adopting the same, and aims to prevent the consequences of water inflow, short circuit, even burning or corrosion of a motor and the like caused by liquid entering a gap of an output shaft of a driving motor.
In order to achieve the above object, the first technical scheme adopted by the invention is as follows: a spraying device comprises a driving motor and a spraying disc, wherein an output shaft of the driving motor is fixedly connected with the spraying disc, and a shell is arranged on the outer side of the driving motor; the innovation is that:
a water storage container is arranged between the driving motor and the spraying disc along the axial direction of the output shaft, the water storage container is of a top opening structure, the top opening is arranged towards the driving motor, a water inlet and a water outlet are formed in the wall of the water storage container, the output shaft is arranged in the water outlet in a penetrating manner, and a first radial interval is arranged between the inner edge of the water outlet and the output shaft;
an end cover is arranged between the water storage container and the driving motor along the axial direction of the output shaft, the end cover covers the top opening of the water storage container, an assembly hole is formed in the end cover, the assembly hole is of a tapered structure from one end close to the driving motor to one end far away from the driving motor along the axial direction of the output shaft, the output shaft penetrates through the assembly hole, a second radial interval is arranged between the inner edge of the small opening end of the assembly hole and the output shaft, and a third radial interval is arranged between the inner edge of the large opening end of the assembly hole and the output shaft;
along the axial of output shaft, the cover is equipped with at least one and blocks the structure on the output shaft, blocks the structure and is located between driving motor and the spray disc.
In order to achieve the above purpose, the second technical scheme adopted by the invention is as follows: an unmanned aerial vehicle, its innovation lies in: the unmanned aerial vehicle is provided with the spraying device according to the first technical scheme.
The relevant content explanation in the technical scheme is as follows:
in the above technical scheme, the blocking structure comprises a first gasket, the first gasket is arranged on one side of the end cover close to the driving motor, the first gasket is positioned on the output shaft and is positioned at the large opening end of the assembly hole, and the axial projection of the first gasket on the end cover covers the third radial interval.
In the above technical scheme, the blocking structure comprises a second gasket, the second gasket is arranged on one side of the end cover, far away from the driving motor, the second gasket is positioned on the output shaft and positioned at the small opening end of the assembly hole, and the axial projection of the second gasket on the end cover covers the second radial interval.
In the above technical scheme, the blocking structure may be a blocking piece or a blocking sheet which is arranged in a dislocation manner in the axial direction and the circumferential direction of the output shaft, so long as the blocking piece can prevent the liquid from ascending along the output shaft.
In the technical scheme, the water storage container is provided with a bottom and a side wall, an accommodating space with an open top is formed between the bottom and the side wall, the water inlet is formed in the side wall, and the water outlet is formed in the bottom;
and a blocking piece is arranged in the water storage container corresponding to the water inlet, and the blocking piece is arranged between the water inlet and the output shaft.
In the above technical scheme, the pilot hole is the convergent structure, and its effect lies in: the liquid can flow back into the water storage container from the end cover more quickly, and meanwhile, the liquid can flow back more intensively, liquid splashing is prevented, and the centrifugal spraying effect is improved.
In the above technical scheme, the end cover includes the bottom plate, is provided with the side towards driving motor on the bottom plate, and the side is arranged along bottom plate circumference, forms a accommodation space between side and the bottom plate, can store liquid to a certain extent, even liquid has got into the end cover through the pilot hole, also can store in the accommodation space of end cover, prevents liquid contact motor or get into the motor in certain time.
The axial distance between the first gasket and the driving motor is greater than or equal to 0 and less than or equal to 1 millimeter, and if a part of liquid enters the end cover through the assembly hole, the tiny axial distance between the first gasket and the driving motor can further prevent the liquid from entering the driving motor from the tiny axial distance.
In the technical scheme, the end cover is relatively and fixedly connected with the water storage container through the first positioning structure; the end cover is fixedly connected with the casing relatively through a second positioning structure.
In the above technical scheme, the first positioning structure and the second positioning structure can adopt a structure in which the positioning groove and the positioning block are embedded and matched, or a structure in which the positioning groove and the positioning block are in snap fit, or a structure in which the positioning groove and the positioning block are in screw fit, or the like, so long as the positioning structure and the positioning block can be relatively fixed, and a person skilled in the art can select a proper positioning structure according to actual needs.
In the above technical scheme, a boss is arranged on one side, facing the water storage container, of the bottom plate of the end cover, corresponding to the second gasket, and the boss is circumferentially arranged along the assembly hole, so that the contact area between the output shaft and liquid is reduced; in practical application, if no boss is arranged, the height of the second gasket is increased so as to reduce the axial distance between the second gasket and the water outlet of the water storage container, and the expected waterproof effect can be achieved.
In the technical scheme, the water inlet is connected with a guide pipe.
In the above technical scheme, a cover body is arranged between the spraying disc and the water storage container in the axial direction of the output shaft, the cover body covers the spraying disc, a cover body water inlet is formed in the cover body corresponding to the water outlet of the water storage container, and the opening size of the cover body water inlet is larger than that of the water outlet; in practical application, also can not set up the lid, the liquid that the water storage container delivery port flowed out directly flows into in the spray tray this moment, in order to prevent that the liquid in the spray tray runner from being full of the runner, directly overflows from the runner and loses centrifugal effect, can deepen the degree of depth of runner to make the runner can store more liquid, even if not set up the lid this moment also can realize better atomization effect.
The working principle of the invention is as follows: according to the invention, a water storage container is additionally arranged between the driving motor and the spraying disc, in a working state, liquid enters the water storage container from a water inlet of the water storage container, and falls into the water storage container after being blocked by the blocking piece, part of the liquid in the water storage container flows into the spraying disc through a water outlet, and the driving motor drives the spraying disc to rotate so as to atomize the liquid on the spraying disc into liquid drops; the other part of liquid does not flow out of the water storage container, and flows upwards along the output shaft of the driving motor, and in the ascending process, the second gasket, the end cover and the first gasket sequentially form three defense lines so as to prevent the ascending liquid from entering the driving motor along the output shaft; the invention thoroughly prevents liquid from entering the driving motor, effectively protects the driving motor, has novel structure, ingenious conception and convenient maintenance, and is suitable for popularization.
Drawings
FIG. 1 is an exploded side view of an embodiment of the present invention;
FIG. 2 is an exploded perspective view of an embodiment of the present invention;
FIG. 3 is a sectional view showing an assembled state according to an embodiment of the present invention;
FIG. 4 is a perspective view showing the internal structure of a water storage container according to an embodiment of the present invention;
FIG. 5 is a perspective view of an end cap according to an embodiment of the present invention;
in the above figures: 1. a driving motor; 12. an output shaft; 13. a housing; 14. a mounting base; 2. a water storage container; 21. a bottom; 211. a water outlet; 22. a sidewall; 221. a water inlet; 23. a blocking member; 24. a conduit; 3. a spray plate; 4. an end cap; 41. a bottom plate; 411. a fitting hole; 42. a side edge; 5. a first gasket; 6. and a second gasket.
Detailed Description
The invention is further described below with reference to the accompanying drawings and examples:
embodiment one:
referring to fig. 1-5, a spraying device comprises a driving motor 1 and a spraying disc 3, wherein the driving motor 1 is arranged on a mounting seat 14, an output shaft 12 of the driving motor 1 is fixedly connected with the spraying disc 3, and a casing 13 is arranged outside the driving motor 1.
Along the axial direction of the output shaft 12, a water storage container 2 is arranged between the driving motor 1 and the spray disk 3, the water storage container 2 is provided with a bottom 21 and a side wall 22, an accommodating space with an open top is formed between the bottom 21 and the side wall 22, the top of the accommodating space is arranged towards the driving motor 1, a water inlet 221 is formed in the side wall 22 of the water storage container 2, a water outlet 211 is formed in the bottom 21 of the water storage container 2, the output shaft 12 is arranged in the water outlet 221 in a penetrating manner, and a first radial interval is formed between the inner edge of the water outlet 221 and the output shaft 12. The first radial interval can be designed by a person skilled in the art according to the need, and the larger the first radial interval is, the easier the liquid in the water storage container 2 enters the spray disc 3, so that the liquid is prevented from being blocked in the water storage container.
Referring to fig. 4, a blocking member 23 is disposed in the water storage container 2 corresponding to the water inlet 221, the blocking member 23 is disposed between the water inlet 221 and the output shaft 12, and the blocking member 23 is a sheet member or a block member, so long as the blocking member can prevent the liquid from entering the water storage container 2 from the water inlet 221 and directly contacting the output shaft 12. The blocking piece 23 can prevent the liquid from directly contacting the output shaft 12 when entering the water storage container 2, and prevent the liquid from going upwards along the output shaft 12 to enter the driving motor 1, so that the waterproof function is realized to a certain extent.
An end cover 4 is arranged between the water storage container 2 and the driving motor 1 along the axial direction of the output shaft 12, the end cover 4 covers the top opening of the water storage container 2, an assembly hole 411 is formed in the end cover 4, the assembly hole 411 is in a tapered structure from one end close to the driving motor 1 to one end far away from the driving motor 1 along the axial direction of the output shaft 12, the output shaft 12 is arranged in the assembly hole 411 in a penetrating manner, a second radial interval is preferably arranged between the inner edge of the small opening end of the assembly hole 411 and the output shaft 12, the second radial interval is preferably more than 0 and less than or equal to 1 millimeter, and of course, a person skilled in the art can design the size of the second radial interval according to the requirement to prevent friction between the assembly hole 411 and the output shaft 12, and meanwhile, the second radial interval is as small as possible to prevent liquid from entering the end cover 4 from the second radial interval; a third radial interval is arranged between the inner edge of the large opening end of the assembly hole 411 and the output shaft 12, and the third radial interval is larger than the second radial interval so as to accelerate the liquid to flow back into the water storage container 2.
The blocking structure comprises a first gasket 5, the first gasket 5 is arranged on one side of the end cover close to the driving motor 1, the first gasket 5 is positioned on the output shaft 12 and is positioned at the large opening end of the assembly hole 411, a first gap is formed between the first gasket 5 and the end cover 4 in the axial direction of the output shaft 12 so as to prevent friction between the first gasket 5 and the end cover 4, the first gap is greater than or equal to 0 and less than or equal to 1 mm, the first gap can be set according to actual needs by a person skilled in the art, preferably, the first gap is 0.5 mm, preferably, the first gap is 0.3 mm, preferably, the first gap is 0.1 mm, as long as the first gap is ensured to be as small as possible but the first gasket 5 cannot be rubbed with the end cover 4. The first gap is as small as possible to prevent liquid from entering the end cap 4. Alternatively, when the first gap is equal to 0, the first gasket 5 contacts the end cover, and it is necessary to ensure that the friction coefficient of the first gasket 5 is low to work normally. The axial projection of the first gasket 5 on the end cover 4 covers the third radial interval, that is, the maximum outer diameter of the first gasket 5 is greater than or equal to the third radial interval, so that the first gasket 5 can be used for blocking liquid from entering the end cover 4, and the liquid is prevented from directly entering the end cover from the large opening end of the assembly hole 411, so that the liquid is prevented from entering the driving motor 1.
The blocking structure comprises a second gasket 6, the second gasket 6 is arranged on one side of the end cover far away from the driving motor 1, the second gasket 6 is positioned on the output shaft 12 and is positioned at the small opening end of the assembly hole 411, a second gap is arranged between the second gasket 6 and the end cover 4 in the axial direction of the output shaft 12 so as to prevent friction between the second gasket 6 and the end cover 4, the second gap is greater than or equal to 0 and less than or equal to 1 mm, the second gap can be set according to actual needs by a person skilled in the art, preferably, the second gap is 0.6 mm, preferably, the second gap is 0.4 mm, preferably, the second gap is 0.1 mm, as long as the second gap is ensured to be as small as possible but the second gasket 6 cannot rub with the end cover 4. The first gap and the second gap may be equal or unequal and may be changed according to design requirements. The second gap is as small as possible to prevent liquid from entering the fitting hole 411 along the second gap into the end cap. Alternatively, when the second gap is equal to 0, the second gasket 5 contacts the end cap, and it is necessary to ensure that the friction coefficient of the second gasket 5 is low to work normally. The axial projection of the second gasket 6 on the end cover 4 covers the second radial interval, that is, the maximum outer diameter of the second gasket 6 is greater than or equal to the second radial interval, so that the second gasket 5 can be used for blocking liquid from entering the assembly hole 411, and the liquid is prevented from directly entering the end cover from the small opening end of the assembly hole 411 and then entering the driving motor 1.
The blocking structure may only include a first gasket 5 or a second gasket 6, and a person skilled in the art may sleeve a plurality of first gaskets 5 or a plurality of second gaskets 6 on one side of the end cover according to needs, so that the number of the first gaskets 5 and the second gaskets 6 is not limited, as long as the liquid can be limited to move up along the output shaft 12, preferably, the blocking structure may also include the first gaskets 5 and the second gaskets 6 sleeved on the output shaft 12, and the first gaskets 5 and the second gaskets 6 are respectively arranged on two sides of the end cover 4 along the axial direction of the output shaft 12, so that the waterproof effect is better.
In this embodiment, the second gasket 6 and the first gasket 5 are set to have the same maximum outer diameter, so that the production and manufacturing are convenient, but in practical application, the first gasket 5 and the second gasket 6 with different maximum outer diameters can be used to achieve the purpose of waterproofing, so long as the axial projection of the first gasket 5 on the end cover 4 is ensured to cover the third radial interval, and the axial projection of the second gasket 6 on the end cover 4 is ensured to cover the second radial interval, the shape and the material of the first gasket 5 and the second gasket 6 are not limited, and the design can be carried out according to the requirements of a person skilled in the art.
A third gap is provided between the spray disc 3 and the water storage container 2 in the axial direction of the output shaft 12 to avoid friction between the rotating spray disc 3 and the fixed water storage container 2, and the third gap can be designed according to the need without limitation.
The fitting hole 411 has a tapered structure, and functions in that: the liquid can flow back into the water storage container 2 from the end cover 4 more quickly, and meanwhile, the liquid can flow back more intensively, so that the liquid can be prevented from splashing, and the centrifugal spraying effect can be improved. The large mouth end of the fitting hole 411 is easy to collect liquid, so that the liquid quickly flows back into the water storage container 2 along the tapered structure, and is concentrated together at the small mouth end, thereby preventing the liquid from splashing.
Referring to fig. 5, the end cover 4 includes a bottom plate 41, a side 42 is disposed on the bottom plate 41 toward the driving motor 1, the side 42 is disposed along the circumference of the bottom plate 41, a containing space is formed between the side 42 and the bottom plate 41, so that liquid can be stored to a certain extent, and even if the liquid enters the end cover 4 through the assembly hole 411, the liquid can be stored in the containing space of the end cover 4, so that the liquid is prevented from contacting the driving motor 1 or entering the driving motor 1 for a certain period of time. The height of the side edges can be designed, and the higher the height of the side edges is, the more liquid can be stored, and the liquid is further prevented from entering the driving motor 1.
The axial distance between the first washer 5 and the drive motor 1 is greater than or equal to 0 and less than or equal to 1 mm, preferably 0.2 mm, preferably 0.1 mm, where the axial distance is as small as possible, and the small axial distance between the first washer 5 and the drive motor 1 can further prevent liquid from entering the drive motor 1 if some liquid enters the end cap 4 through the fitting hole 411. Of course, if the friction coefficient of the first washer 5 is sufficiently small, the axial distance between the first washer 5 and the drive motor 1 can be designed to be 0, so that the rotation of the output shaft 12 is not hindered, and a better waterproof effect can be achieved.
The end cover 4 is fixedly connected with the water storage container 2 relatively through a first positioning structure.
The end cover 4 is fixedly connected with the casing 13 relatively through a second positioning structure. The water storage container 2, the end cover 4 and the casing 13 are fixedly connected in a sealing way in the axial direction of the output shaft through the first positioning structure and the second positioning structure.
The first positioning structure and the second positioning structure can adopt a structure that the positioning groove is embedded with the positioning block to be matched with, or a structure that the positioning groove is in snap fit with, or a structure that the positioning groove is in screw fit with, and the like, so long as the relative fixation between the positioning groove and the positioning block can be realized, and a person skilled in the art can select a proper positioning structure according to actual needs.
The bottom plate 41 of the end cover 4 is provided with a boss corresponding to the second gasket 6 on a side facing the water storage container 2, the boss is circumferentially arranged along the assembly hole 411, an axial second gap is formed between the boss and the second gasket 6 to prevent friction between the second gasket 6 and the boss, and the design of the second gap is the same as that described above, and will not be repeated here. The design of the boss can reduce the axial distance between the second gasket 6 and the water outlet 211 of the water storage container 2, namely reduce the contact area between the output shaft 12 and liquid, so that as little liquid as possible goes up along the output shaft 12 and enters the end cover 4 to play a role in water prevention. In practical application, by increasing the height of the second gasket 6 and matching with a boss with a certain height, or not setting the boss, the height of the second gasket 6 is directly increased, and the axial distance between the second gasket 6 and the water outlet 211 of the water storage container 2 can be reduced, so that the expected waterproof effect can be achieved.
The water inlet 221 is connected with a conduit 24, and liquid enters the water inlet 221 through the conduit 24 and thus enters the water storage container 2.
A cover body is arranged between the spray disc 3 and the water storage container 2 in the axial direction of the output shaft 12, the cover body covers the spray disc 3, a cover body water inlet is formed on the cover body corresponding to the water outlet 211 of the water storage container 2, and the opening size of the cover body water inlet is larger than that of the water outlet 211; in practical application, the cover body is not required to be arranged, at this time, the liquid flowing out of the water outlet 211 of the water storage container 2 directly flows into the spray disc 3, so that the liquid in the flow channel of the spray disc 3 is prevented from being filled in the flow channel and directly overflows from the flow channel to lose the centrifugal effect, the depth of the flow channel can be deepened, more liquid can be stored in the flow channel, and at this time, a better atomization effect can be realized even if the cover body is not arranged.
In the working state, liquid enters the water storage container 2 from the water inlet 221 of the water storage container 2, falls into the water storage container 2 after being blocked by the blocking piece 23, part of the liquid in the water storage container 2 flows into the spray disc 3 through the water outlet 211, and the drive motor 1 drives the spray disc 3 to rotate so as to atomize the liquid on the spray disc 3 into fogdrops; the other part of liquid does not flow out of the water storage container 2, and goes upward along the output shaft 12 of the driving motor 1, and in the upward process, the second gasket 6, the end cover 4 and the first gasket 5 sequentially form three defense lines so as to prevent the upward liquid from entering the driving motor 1 along the output shaft 12; the invention thoroughly prevents liquid from entering the driving motor 1, effectively protects the driving motor 1, has novel structure, ingenious conception and convenient maintenance, and is suitable for popularization.
In the above embodiment, the end cover 4 and the water storage container 2 are two independent components, and in practical application, the end cover 4 and the water storage container 2 may also be in an integrated structure, i.e. the end cover 4 is fixed to the top opening of the water storage container 2 to close the top opening of the water storage container 2.
Embodiment two:
an unmanned aerial vehicle provided with the spraying device in the embodiment, including but not limited to, the spraying device arranged below a rotor wing, and the spraying device is started to realize spraying operation in the flight process of the unmanned aerial vehicle.
The above embodiments are provided to illustrate the technical concept and features of the present invention and are intended to enable those skilled in the art to understand the content of the present invention and implement the same, and are not intended to limit the scope of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.
Claims (5)
1. A spraying device comprises a driving motor and a spraying disc, wherein an output shaft of the driving motor is fixedly connected with the spraying disc, and a shell is arranged on the outer side of the driving motor; the method is characterized in that:
a water storage container is arranged between the driving motor and the spraying disc along the axial direction of the output shaft, the water storage container is of a top opening structure, the top opening is arranged towards the driving motor, a water inlet and a water outlet are formed in the wall of the water storage container, the output shaft is arranged in the water outlet in a penetrating manner, and a first radial interval is arranged between the inner edge of the water outlet and the output shaft;
an end cover is arranged between the water storage container and the driving motor along the axial direction of the output shaft, the end cover covers the top opening of the water storage container, an assembly hole is formed in the end cover, the assembly hole is of a tapered structure from one end close to the driving motor to one end far away from the driving motor along the axial direction of the output shaft, the output shaft penetrates through the assembly hole, a second radial interval is arranged between the inner edge of the small opening end of the assembly hole and the output shaft, and a third radial interval is arranged between the inner edge of the large opening end of the assembly hole and the output shaft;
at least one blocking structure is sleeved on the output shaft along the axial direction of the output shaft, and the blocking structure is positioned between the driving motor and the spraying disc;
the blocking structure comprises a first gasket, the first gasket is arranged on one side of the end cover, close to the driving motor, of the end cover, the first gasket is positioned on the output shaft and positioned at the large opening end of the assembly hole, and the axial projection of the first gasket on the end cover covers the third radial interval;
the blocking structure comprises a second gasket which is arranged on one side of the end cover, far away from the driving motor, and is positioned on the output shaft and positioned at the small opening end of the assembly hole, and the axial projection of the second gasket on the end cover covers the second radial interval;
the water storage container is provided with a bottom and a side wall, an accommodating space with an open top is formed between the bottom and the side wall, the water inlet is formed in the side wall, and the water outlet is formed in the bottom;
a blocking piece is arranged in the water storage container corresponding to the water inlet, and the blocking piece is arranged between the water inlet and the output shaft;
the end cover comprises a bottom plate, a side edge is arranged on the bottom plate towards the driving motor, the side edge is circumferentially arranged along the bottom plate, and an accommodating space is formed between the side edge and the bottom plate;
the bottom plate of end cover is provided with the boss towards corresponding second packing ring on the one side of water storage container, and this boss is followed the pilot hole circumference is arranged, the high cooperation of boss and second packing ring's height reduces the area of contact of output shaft and liquid.
2. The spraying device of claim 1, wherein: the axial distance between the first gasket and the driving motor is greater than or equal to 0 mm and less than or equal to 1 mm.
3. The spraying device of claim 1, wherein: the end cover is fixedly connected with the water storage container relatively through a first positioning structure, and the end cover is fixedly connected with the casing relatively through a second positioning structure.
4. The spraying device of claim 1, wherein: and a cover body is arranged between the spray disc and the water storage container in the axial direction of the output shaft, the cover body covers the spray disc, a cover body water inlet is formed in the cover body corresponding to the water outlet of the water storage container, and the opening size of the cover body water inlet is larger than that of the water outlet.
5. An unmanned aerial vehicle, its characterized in that: the unmanned aerial vehicle is provided with the spraying device according to any one of claims 1-4.
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| CN201810797132.XA CN108910047B (en) | 2018-07-19 | 2018-07-19 | Sprinkler and unmanned aerial vehicle adopting same |
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| CN201810797132.XA CN108910047B (en) | 2018-07-19 | 2018-07-19 | Sprinkler and unmanned aerial vehicle adopting same |
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| CN112340023A (en) * | 2020-09-11 | 2021-02-09 | 广州极飞科技有限公司 | Sprinkler and aircraft with same |
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| CN206871370U (en) * | 2017-06-19 | 2018-01-12 | 广州极飞科技有限公司 | Flusher and unmanned plane |
| CN206879905U (en) * | 2017-04-11 | 2018-01-16 | 苏州极目机器人科技有限公司 | A kind of centrifugal energy nozzle with force(d) (draft) fan |
| CN207054605U (en) * | 2017-08-15 | 2018-03-02 | 广州极飞科技有限公司 | Flusher and unmanned plane |
| CN108271759A (en) * | 2018-03-20 | 2018-07-13 | 成都天麒科技有限公司 | A kind of multi-rotor unmanned aerial vehicle sprinkling system |
| CN209080163U (en) * | 2018-07-19 | 2019-07-09 | 苏州极目机器人科技有限公司 | A kind of flusher and the unmanned plane using the flusher |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6820821B2 (en) * | 2001-04-13 | 2004-11-23 | S.C. Johnson & Son, Inc. | Automated cleansing sprayer |
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| CN206879905U (en) * | 2017-04-11 | 2018-01-16 | 苏州极目机器人科技有限公司 | A kind of centrifugal energy nozzle with force(d) (draft) fan |
| CN206871370U (en) * | 2017-06-19 | 2018-01-12 | 广州极飞科技有限公司 | Flusher and unmanned plane |
| CN207054605U (en) * | 2017-08-15 | 2018-03-02 | 广州极飞科技有限公司 | Flusher and unmanned plane |
| CN108271759A (en) * | 2018-03-20 | 2018-07-13 | 成都天麒科技有限公司 | A kind of multi-rotor unmanned aerial vehicle sprinkling system |
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| CN108910047A (en) | 2018-11-30 |
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