CN106005424A - Liquid level feedback type shock-proof pesticide box - Google Patents
Liquid level feedback type shock-proof pesticide box Download PDFInfo
- Publication number
- CN106005424A CN106005424A CN201610533777.3A CN201610533777A CN106005424A CN 106005424 A CN106005424 A CN 106005424A CN 201610533777 A CN201610533777 A CN 201610533777A CN 106005424 A CN106005424 A CN 106005424A
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- Prior art keywords
- chest
- liquid level
- casing
- spring
- medicine
- 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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- 239000007788 liquid Substances 0.000 title claims abstract description 69
- 239000000575 pesticide Substances 0.000 title abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 230000005484 gravity Effects 0.000 claims abstract description 12
- 239000012530 fluid Substances 0.000 claims abstract description 9
- 230000008859 change Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 238000012544 monitoring process Methods 0.000 abstract 1
- 239000003814 drug Substances 0.000 description 7
- RZVHIXYEVGDQDX-UHFFFAOYSA-N 9,10-anthraquinone Chemical compound C1=CC=C2C(=O)C3=CC=CC=C3C(=O)C2=C1 RZVHIXYEVGDQDX-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000009514 concussion Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 208000031481 Pathologic Constriction Diseases 0.000 description 1
- 241000607479 Yersinia pestis Species 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 235000021393 food security Nutrition 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000004899 motility Effects 0.000 description 1
- 210000001215 vagina Anatomy 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Pest Control & Pesticides (AREA)
- Insects & Arthropods (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Aviation & Aerospace Engineering (AREA)
- Catching Or Destruction (AREA)
Abstract
The invention relates to a liquid level feedback type shock-proof pesticide box, comprising a box body, a box cover, a water inlet and a water outlet, wherein the box body adopts a uniform section structure, a baffle is horizontally arranged in the box body, a fluid storage chamber is formed below the baffle, a spring is connected between the baffle and the box cover, and the spring is enabled to be in a compressed state all the time; a rubber skidding pad is arranged around the baffle, so that the baffle is in interference fit in the box body; a distance measuring sensor is mounted at the middle part of the box cover. The box body adopts the uniform section structure, and the spring and the baffle exist, so that in a pesticide application process of a plant protection unmanned aerial vehicle, with the reduction of pesticide liquid, the gravity center of the whole shock-proof pesticide box changes only in a longitudinal direction instead of a transverse direction. Therefore, by monitoring the liquid level height by means of the distance measuring sensor in real time, real-time changes of the remaining amounts of the pesticide liquid and the gravity center of the pesticide box can be simultaneously fed back, thus facilitating the plant protection unmanned aerial vehicle to perform flight attitude compensation.
Description
Technical field
The invention belongs to agricultural aviation plant protection equipment technical field, particularly to a kind of liquid level feedback formula anti-oscillating
Medicine-chest.
Background technology
Accuracy pesticide applying is to ensure that national food security, reasonable effective use pesticide, it is to avoid environmental pollution effective
Approach.Agricultural aviation is the important component part of modern agriculture, reflects agricultural modernization level.Owing to planting
Protect unmanned plane and have that flight speed is fast, efficiency is high, motility is good, mobility strong, reply burst pest and disease damage
The feature that with the obvious advantage, environmental suitability is strong, since 2010, unmanned plane aviation plant protection industry is in China
Progressively develop.
Existing dispenser plant protection unmanned plane during flying reliability and safety is relatively low, and causes the reason of problems
Complex, wherein medicine-chest profile and inner-cavity structure are notable on the impact of unmanned plane during flying stability.
Being applied to the medicine-chest of plant protection unmanned plane at present, internal structure is simple, it is impossible to limit slosh,
Plant protection unmanned plane is affected due to inevitable by artificial or external force factor and is shaken in operation process
Time dynamic, the skew of medicinal liquid center of gravity in medicine-chest and the impact to medicine-chest wall, cause plant protection unmanned plane during flying appearance
The change of state, flight speed and flying height, makes stability in the large deteriorate further, can send out under serious conditions
Raw air crash is dangerous.It addition, during plant protection unmanned plane dispenser, amount of liquid medicine gradually decreases and causes unmanned plane load
Change, its flight stability and safety to unmanned plane equally adversely affects；And existing plant protection without
Man-machine medicine-chest does not the most possess liquid level feedback function, and plant protection system for flight control computer cannot know medicinal liquid surplus and medicine
Case gravity center shift, thus cannot be carried out pose compensation.
Therefore, need badly a kind of be generally applicable to plant protection unmanned plane there is liquid level feedback function and antihunt
Medicine-chest.
Summary of the invention
Not enough for prior art, the invention provides a kind of liquid level feedback formula anti-oscillating medicine-chest.
A kind of liquid level feedback formula anti-oscillating medicine-chest, including casing, case lid, water inlet and outlet, described case
Body uses uiform section structure, and in casing, level is provided with baffle plate 10, and the lower section of baffle plate 10 is fluid reservoir, gear
It is connected between plate 10 and case lid and has spring 7, it is ensured that spring 7 is constantly in compressive state；At baffle plate 10
It is formed around rubber skidding 9 so that baffle plate 10 is interference fit in casing；Install at the middle part of case lid
There is distance measuring sensor 6.Owing to casing uses uiform section structure, and spring 7 and the existence of baffle plate 10,
Making plant protection unmanned plane during dispenser, medicinal liquid will not shake, along with the minimizing of medicinal liquid, anti-oscillating medicine
The overall center of gravity of case only can be longitudinally varying, without in cross directional variations.Therefore, by distance measuring sensor 6
Monitor liquid level in real time, it is possible to feedback medicinal liquid surplus and the real-time change of medicine-chest center of gravity, beneficially plant protection simultaneously
Unmanned plane carries out the compensation of flight attitude.
The described central shaft of spring 7 and the central shaft of casing are on same straight line.
Backing plate 5 it is provided with so that the active force of spring 7 is distributed on case lid between case lid and spring 7.
The described outer surface of rubber skidding 9 and the inwall of casing have certain fineness, it is ensured that baffle plate 10
Straight up and down slide along cabinet wall, ensure the sealing to fluid reservoir simultaneously.
It is matched in clearance between described casing and case lid, it is ensured that the chamber between case lid and baffle plate 10 is with extraneous
Air communicates.
The bottom of described casing is provided with two through holes, is respectively equipped with the screw boss with through hole outside through hole
12, one of them screw boss 12 is connected with check valve 1, as water inlet by water pipe；Another spiral shell
Stricture of vagina boss 12 is connected with ball valve 13, as outlet by water pipe.
The invention have the benefit that
1. the present invention uses the medicine-chest structure with sealing property, is coated with the baffle plate of rubber skidding at air
Under the common effect of pressure and compression spring, follow the lifting of casing inner liquid medicine liquid level closely and move, it is possible to prevent
Air enters fluid reservoir, it is to avoid the concussion of medicinal liquid.Additionally, due to the sealing property of medicine-chest so that electricity, liquid
Separate, more safe and reliable.
2. the present invention uses distance measuring sensor to monitor liquid level in real time, provides medicine-chest medicine for plant protection unmanned plane
Liquid surplus and center of gravity real-time change situation, beneficially UAV Attitude adjust and flight controls.
3. the present invention uses prismatic medicine-chest structure, is simple to manufacture, easy to assembly；And major part portion
Part all can use plastic, light weight, inexpensive.The present invention uses independent check valve and ball valve to pass through water pipe
Be connected with medicine-chest, install, convenient disassembly quick.
In sum, the present invention is greatly improved the stability that medicine-chest is overall, and center of gravity can be surveyed, substantially improve
Plant protection unmanned plane during flying stability, it is ensured that plant protection unmanned plane during flying safety and working performance, improves dispenser
Effect；Light weight, inexpensive, and the suitability is wide.
Accompanying drawing explanation
Fig. 1 is a kind of liquid level feedback formula anti-oscillating medicine-chest outline drawing；
Fig. 2 is a kind of liquid level feedback formula anti-oscillating medicine-chest structural representation；Simultaneously for there to be state during medicinal liquid to show
It is intended to；
Fig. 3 is that a kind of liquid level feedback formula anti-oscillating medicine-chest is without view during medicinal liquid；
Fig. 4 is view during the full medicinal liquid of a kind of liquid level feedback formula anti-oscillating medicine-chest；
Label declaration: 1-check valve；2-casing；3-connects flange；4-case lid；5-backing plate；6-finds range sensing
Device；7-spring；8-spring deep gouge；9-rubber skidding；10-baffle plate；11-medicinal liquid；12-screw boss；13-
Ball valve；14-water pipe；15-pressure cap.
Detailed description of the invention
The present invention will be further described with detailed description of the invention below in conjunction with the accompanying drawings.Under it is emphasized that
State bright that be merely exemplary rather than in order to limit the scope of the present invention and application thereof.
A kind of liquid level feedback formula anti-oscillating medicine-chest as shown in Figure 1, including casing 2 and case lid 4, wherein casing
2 is columnar structured, and internal diameter is
As in figure 2 it is shown, level is provided with a diameter of in casing 2Thickness is the circle of 20mm
Cylindrical shield 10；The lower section of baffle plate 10 is fluid reservoir.It is provided with backing plate 5, Liang Zhetong at the middle part of case lid 4
Cross screw, nut connects.It is respectively equipped with spring deep gouge 8, by spring deep gouge 8 on baffle plate 10 and backing plate 5
Spring 7 is connected between baffle plate 10 and backing plate 5, it is ensured that the central shaft of spring 7 and the center of casing 2
Axle is on same straight line.A diameter of 200mm of spring 7, rigidity is 0.5N/mm.Spring 7 is all the time
Being in compressive state, when the full medicinal liquid of medicine-chest, spring 7 is in complete compressive state, and spring force is 75N；
When medicine-chest is without medicinal liquid, spring force is 20N.Spring 7 is mainly used in offsetting the part vibratory forces of medicinal liquid,
Avoid inclination or the deflection of baffle plate 10；Backing plate 5 makes the active force of spring 7 can be distributed in case lid
On 4, prevent case lid 4 excessive and destroyed because of active force.
Surrounding at baffle plate 10 is coated with the rubber skidding 9 that thickness is 2.5mm so that baffle plate 10 is at case
It is interference fit in body 2.The outer surface of rubber skidding 9 and the inwall of casing 2 have certain fineness,
Guarantee baffle plate 10 can be close to the inwall of casing 2 and straight up and down slide, the inclination of anti-baffle plate 10 or deflection；
Ensure the sealing to fluid reservoir simultaneously, prevent air from entering, be conducive to avoiding medicinal liquid to shake, and ensure
The accuracy of liquid level feedback data.
Have through hole at the middle part of case lid 4 and backing plate 5, be used for distance measuring sensor 6 is installed, work as medicine-chest
In interior time without medicinal liquid, distance measuring sensor 6 is 120mm with the distance on baffle plate 10 top；When medicine full in medicine-chest
During liquid, distance measuring sensor 6 is 10mm with the distance on baffle plate 10 top.Distance measuring sensor 6 uses infrared
Sensor, simple in construction, light weight is inexpensive, good stability, and certainty of measurement is high, detects itself and gear in real time
The distance of plate 10, and feed back to unmanned plane.
Owing to casing 2 uses uiform section structure, in baffle plate 10 straight up and down sliding process, it is right to be always ensured that
The sealing of fluid reservoir.Under the effect of external atmospheric pressure and the compression stress of spring 7, and baffle plate 10
Self there is certain rigidity, the concussion of medicinal liquid can be prevented effectively from so that plant protection unmanned plane during dispenser,
Along with the minimizing of medicinal liquid, the overall center of gravity of anti-oscillating medicine-chest only can be longitudinally varying, without in cross directional variations,
Guarantee the accuracy of liquid level feedback data.Unmanned plane by with medicine-chest without 6 totals of distance measuring sensor during medicinal liquid
According to comparing, draw liquid level, monitor liquid level in real time by distance measuring sensor 6, and then draw
And feed back medicinal liquid surplus and the real-time change of medicine-chest center of gravity, beneficially plant protection unmanned plane and carry out the compensation of flight attitude
With flight control.
The most equidistantly it is provided with four in the outer, upside of casing 2 and the outer, downside of case lid 4 and connects flange
3, the connection flange about 3 connected on flange 3 and case lid 4 on casing 2 coordinates one by one, passes through screw
It is connected with nut.It is matched in clearance between casing 2 and case lid 4, it is ensured that between backing plate 5 and baffle plate 10
Air communicates with ambient atmosphere, and normally working for medicine-chest provides safeguard.
The bottom of described casing 2 is provided with two through holes, is respectively equipped with the screw thread with through hole convex outside through hole
Platform 12, one of them screw boss 12 is connected with check valve 1, as water inlet by water pipe 14；Separately
One screw boss 12 is connected with ball valve 13, as outlet by water pipe 14.Check valve 1 can be true
When protecting injection medicinal liquid in medicine-chest, medicinal liquid only import but no export.Ball valve 13 is used for controlling whether medicinal liquid flows out, when
When injecting medicinal liquid, ball valve 13 is closed；When medicine-chest works, ball valve 13 is opened.By pressure cap 15 by water
Pipe 14 is pressed in screw boss 12, prevents liquid leakage.
Described connection flange 3 respectively with casing 2 and case lid 4 integrated injection molding；Described screw boss 12
With casing 2 integrated injection molding.
Casing 2, case lid 4, backing plate 5, baffle plate 10, check valve 1, the material of ball valve 13 are the most preferentially selected
Working of plastics, it is possible to alleviate medicine-chest weight.
The duty of liquid level feedback formula anti-oscillating medicine-chest is as shown in figs 2-4.
Medicine-chest without medicinal liquid as it is shown on figure 3, when injecting medicinal liquid in medicine-chest, now it is ensured that 10, baffle plate
Bottom casing 2, prevent air from entering, and close ball valve 13, by liquid-injection equipment by check valve 1 to
Injecting the medicinal liquid not less than 750Pa pressure in medicine-chest, medicinal liquid pressure should be able to overcome spring 7 to compress completely
Active force under state.
When distance measuring sensor 6 detects its distance with baffle plate 7 for full medicinal liquid setting value, as shown in Figure 4,
Stop injecting medicinal liquid.Before unmanned plane carries out dispenser operation, water circuit system is put up, wherein the entering of water pump
Water end (W.E.) is connected with the ball valve 13 of outlet, and opens ball valve 13, it is simple to pump working.
When medicine-chest works with unmanned plane, liquid level is constantly reducing, as in figure 2 it is shown, distance measuring sensor 6 is real
Time detect the distance of itself and baffle plate 10, and send the data to unmanned plane, unmanned plane is according to the liquid level of feedback
Highly judge the center of gravity of medicine-chest, and carry out pose adjustment and flight control；Medicine in unmanned plane detects medicine-chest
When liquid will be used up, switching off the pump, unmanned plane makes a return voyage and refills medicinal liquid.
It should be noted that, the present invention not designs for specific plant protection unmanned plane type, it has
Portable strong, the feature of wide adaptability, perfect by profile, this invention be applicable to any plant protection without
Man-machine type.
Claims (6)
1. a liquid level feedback formula anti-oscillating medicine-chest, including casing, case lid, water inlet and outlet, its
Being characterised by, described casing uses uiform section structure, and in casing, level is provided with baffle plate (10), baffle plate (10)
Lower section be fluid reservoir, being connected between baffle plate (10) and case lid has spring (7), it is ensured that spring (7)
Directly it is in compressive state；It is formed around rubber skidding (9) so that baffle plate (10) exists at baffle plate (10)
It is interference fit in casing；Distance measuring sensor (6) is installed, it is possible to feed back medicinal liquid at the middle part of case lid simultaneously
Surplus and the real-time change of medicine-chest center of gravity.
A kind of liquid level feedback formula anti-oscillating medicine-chest, it is characterised in that described
The central shaft of spring (7) and the central shaft of casing are on same straight line.
A kind of liquid level feedback formula anti-oscillating medicine-chest, it is characterised in that at case
It is provided with backing plate (5) so that the active force of spring (7) is distributed on case lid between lid and spring (7).
A kind of liquid level feedback formula anti-oscillating medicine-chest, it is characterised in that described
The outer surface of rubber skidding (9) and the inwall of casing have certain fineness, it is ensured that baffle plate (10) edge
Cabinet wall straight up and down slides, and ensures the sealing to fluid reservoir simultaneously.
A kind of liquid level feedback formula anti-oscillating medicine-chest, it is characterised in that described
It is matched in clearance between casing and case lid, it is ensured that the chamber between case lid with baffle plate (10) and ambient atmosphere phase
Logical.
A kind of liquid level feedback formula anti-oscillating medicine-chest, it is characterised in that described
The bottom of casing is provided with two through holes, is respectively equipped with the screw boss (12) with through hole outside through hole,
One of them screw boss (12) is connected, as water inlet with check valve (1) by water pipe；Another
Screw boss (12) is connected, as outlet with ball valve (13) by water pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610533777.3A CN106005424A (en) | 2016-07-07 | 2016-07-07 | Liquid level feedback type shock-proof pesticide box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610533777.3A CN106005424A (en) | 2016-07-07 | 2016-07-07 | Liquid level feedback type shock-proof pesticide box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106005424A true CN106005424A (en) | 2016-10-12 |
Family
ID=57108320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610533777.3A Pending CN106005424A (en) | 2016-07-07 | 2016-07-07 | Liquid level feedback type shock-proof pesticide box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106005424A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106708105A (en) * | 2016-11-25 | 2017-05-24 | 内蒙古农业大学 | Unmanned aerial vehicle pesticide spraying control system, pesticide spraying device and unmanned aerial vehicle |
| CN106828936A (en) * | 2016-12-30 | 2017-06-13 | 易瓦特科技股份公司 | Unmanned plane |
| CN107089333A (en) * | 2017-05-12 | 2017-08-25 | 上海寅翅智能科技有限公司 | A kind of plant protection unmanned plane is anti-to swing box body device and plant protection unmanned plane |
| CN107215466A (en) * | 2017-05-12 | 2017-09-29 | 常州银鹰航空科技有限公司 | A kind of plant protection unmanned plane is anti-to swing box body device and plant protection unmanned plane |
| CN108094372A (en) * | 2017-12-19 | 2018-06-01 | 浙江大学 | A kind of automatic anti-unmanned plane liquid case for swinging stability maintenance |
| CN110001963A (en) * | 2019-03-27 | 2019-07-12 | 北京科诺华环保科技有限公司 | A kind of unmanned plane pesticide spraying system |
| CN110199975A (en) * | 2019-07-03 | 2019-09-06 | 农业农村部南京农业机械化研究所 | A kind of plant protection unmanned aerial vehicle medicine-chest device and control method |
| CN110279878A (en) * | 2019-07-03 | 2019-09-27 | 安徽仁能达医疗科技有限公司 | A kind of medicine-chest is added medicine to back medicine device |
| CN110447624A (en) * | 2019-09-23 | 2019-11-15 | 水利部牧区水利科学研究所 | A kind of chemical spraying device |
| CN111284697A (en) * | 2020-03-03 | 2020-06-16 | 四川省农业科学院作物研究所 | Unmanned aerial vehicle mounting system for simultaneously scattering solid and liquid |
| CN111493046A (en) * | 2020-04-25 | 2020-08-07 | 徐州徐薯食品研究院有限公司 | Plant protection unmanned aerial vehicle is with preventing vibration and shaking medical kit |
| CN111959788A (en) * | 2020-08-19 | 2020-11-20 | 唐婕 | Self-balancing agricultural sprays unmanned aerial vehicle |
| CN113493073A (en) * | 2020-04-08 | 2021-10-12 | 广东博智林机器人有限公司 | Liquid storage container and engineering equipment |
| CN115675871A (en) * | 2021-07-27 | 2023-02-03 | 中航西飞民用飞机有限责任公司 | Warm cloud catalyst scattering system and method |
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| CN110279878A (en) * | 2019-07-03 | 2019-09-27 | 安徽仁能达医疗科技有限公司 | A kind of medicine-chest is added medicine to back medicine device |
| CN110447624A (en) * | 2019-09-23 | 2019-11-15 | 水利部牧区水利科学研究所 | A kind of chemical spraying device |
| CN110447624B (en) * | 2019-09-23 | 2024-04-26 | 水利部牧区水利科学研究所 | Medicine spraying device |
| CN111284697A (en) * | 2020-03-03 | 2020-06-16 | 四川省农业科学院作物研究所 | Unmanned aerial vehicle mounting system for simultaneously scattering solid and liquid |
| CN111284697B (en) * | 2020-03-03 | 2021-10-22 | 四川省农业科学院作物研究所 | Unmanned aerial vehicle mounting system for simultaneously scattering solid and liquid |
| CN113493073A (en) * | 2020-04-08 | 2021-10-12 | 广东博智林机器人有限公司 | Liquid storage container and engineering equipment |
| CN111493046A (en) * | 2020-04-25 | 2020-08-07 | 徐州徐薯食品研究院有限公司 | Plant protection unmanned aerial vehicle is with preventing vibration and shaking medical kit |
| CN111959788A (en) * | 2020-08-19 | 2020-11-20 | 唐婕 | Self-balancing agricultural sprays unmanned aerial vehicle |
| CN115675871A (en) * | 2021-07-27 | 2023-02-03 | 中航西飞民用飞机有限责任公司 | Warm cloud catalyst scattering system and method |
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Application publication date: 20161012 |