CN208080400U - A kind of adjustable chemical spraying device of plant protection drone - Google Patents
A kind of adjustable chemical spraying device of plant protection drone Download PDFInfo
- Publication number
- CN208080400U CN208080400U CN201820246467.8U CN201820246467U CN208080400U CN 208080400 U CN208080400 U CN 208080400U CN 201820246467 U CN201820246467 U CN 201820246467U CN 208080400 U CN208080400 U CN 208080400U
- Authority
- CN
- China
- Prior art keywords
- plant protection
- shaped folder
- spray boom
- protection drone
- leading screw
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a kind of adjustable chemical spraying devices of plant protection drone, belong to the technical field of equipment for plant protection, including framework soleplate, and the sliding of its center line direction of the framework soleplate upper edge is provided with adjusting slider, and adjusting slider is equipped with the leading screw of its sliding of driving;The end of the leading screw is connected with the Power Component of its rotation of driving;The center line both sides of the framework soleplate are symmetrically hinged with spray boom, and the both sides of spray boom symmetrically offer sliding slot;The center line both sides of the adjusting slider are symmetrically hinged with adjusting rod, and the other end of adjusting rod is articulated and connected with the spray boom;Movable sleeve is equipped with U-shaped folder set on the spray boom, is equipped with idler wheel on two opposite madial walls of U-shaped folder set, and at least provided with a locking assembly on the side wall of U-shaped folder set;The bottom of the U-shaped folder set is connected with nozzle, to reach the distance between the sprinkling radiation witdth range that pesticide can be adjusted flexibly and adjacent two nozzle, to promote pesticide spraying effect and reduce the purpose of pesticide waste.
Description
Technical field
The utility model belongs to the technical field of equipment for plant protection, and in particular to a kind of plant protection drone is filled with adjustable spray
It sets.
Background technology
Plant protection drone also known as unmanned vehicle, as the term suggests it is to protect the unmanned of operation to fly for agriculture and forestry plant
Machine, the type unmanned aerial vehicle fly control, spraying mechanism three parts group by flying platform (fixed-wing, helicopter, Multi-axis aircraft), navigation
At, by ground remote control or navigation fly control, to realize spraying operation, medicament, seed, pulvis etc. can be sprayed.
Go out within 2016 according to space occasion net《The civilian unmanned plane market analysis of China and Potential Prediction (2016 examination distribution)》One book
It introduces, the agricultural plant protection unmanned plane in China is still in starting stage, according to statistics, China's plant protection drone ownership in 2014 at present
For 695 framves, 4,260,000 mu of total working area;China's plant protection drone ownership in 2015 is 2324 framves (31 province's statistics), total to make
1152.8 ten thousand mu of industry area, increasing degree are respectively 234%, 170.6%.Although amount of increase is apparent, generally speaking, the plant in China
It is not yet ripe to protect unmanned plane system.Country's plant protection drone technology and properties of product are irregular at present, few absolutely in numerous products
It disclosure satisfy that large area high intensity plant protection sprinkling requires.
Existing plant protection drone is primarily present following defect during to the sprays of crops:
(1) plant protection drone is in flight course, and for pesticide spraying system thereon when spraying insecticide, the radiation of pesticide spraying is wide
It spends non-adjustable, causes to be unable to matched well for the crops of plantation, be susceptible to the crops sprinkling positioned at marginal position
Deficiency, pesticide spraying effect is bad, or sprinkling is superfluous, and pesticide is caused to waste;
(2) nozzle in existing plant protection drone is to use to be fixed on spray boom, can not quickly be adjusted adjacent
The distance between two nozzles, can not the different pesticide spraying requirement of good conformity.
Utility model content
In order to solve the above problem of the existing technology, the utility model aim is to provide a kind of plant protection drone use
Adjustable chemical spraying device to reach the distance between the sprinkling radiation witdth range that pesticide can be adjusted flexibly and adjacent two nozzle,
To promote pesticide spraying effect and reduce the purpose of pesticide waste.
Technical solution used by the utility model is:A kind of plant protection drone adjustable chemical spraying device, including rack
Bottom plate, the sliding of its center line direction of the framework soleplate upper edge are provided with adjusting slider, and adjusting slider, which is equipped, drives its sliding
Leading screw and leading screw are rotatably dispose on the framework soleplate;The end of the leading screw is connected with the Power Component of its rotation of driving;
The center line both sides of the framework soleplate are symmetrically hinged with spray boom, and the both sides of spray boom symmetrically offer sliding slot;The adjusting slider
Center line both sides are symmetrically hinged with adjusting rod, and the other end of adjusting rod is articulated and connected with the spray boom;It is slidingly connected on the spray boom
There are multiple matched U-shaped folder sets, the two of U-shaped folder set rotates to be provided with and match with the sliding slot relative to madial wall on
Idler wheel, and U-shaped folder set side wall at least provided with a locking assembly;The bottom of the U-shaped folder set is connected with L-type hanging rod, L
It is equipped with nozzle on type hanging rod.
Further, the limit sliding chutes to match with the adjusting slider are offered on the framework soleplate, and are limited and slided
Slot is located in the glide direction of adjusting slider.
Further, the internal thread hole to match with the leading screw is offered on the adjusting slider.
Further, it there are two the locking assembly is set, and is symmetrically disposed on the two side of the U-shaped folder set.
Further, the locking assembly includes thumb screw, is assemblied in the rubber stopper of thumb screw end, the butterfly
Screw flight is connected on the side wall of the U-shaped folder set;The rubber stopper is placed in the inside of the sliding slot and the outer diameter of rubber stopper
Less than the width of sliding slot.
Further, the Power Component includes the motor being located on framework soleplate, master gear, transmission gear and secondary tooth
Wheel, the pinion are connect with the end of the leading screw, and pinion and transmission gear engaged transmission, transmission gear and master gear
Engaged transmission;The output shaft assembly connection of the master gear and motor.
Further, it is equipped with shrapnel in the middle part of the bottom surface of the U-shaped folder set.
Further, the both ends of the leading screw are each equipped with bearing block, and bearing block is fixedly connected on the framework soleplate.
The beneficial effects of the utility model are:
1. using the utility model the adjustable chemical spraying device of plant protection drone, motor drive leading screw rotation, leading screw and
Screw pair is formed between adjusting slider, the adjusting rod driving spray boom that slides through of adjusting slider turns in certain angle range
It is dynamic, to which the angle between the spray boom of both sides is adjusted, due to the opening angle variation between the spray boom of both sides, to spray boom institute
The spray width range covered can then change, and with the plantation width of flexible adaptation ground crops, reach to the good of pesticide
Good utilisation and the effect of spraying pesticide for promoting crops, prevent a large amount of wastes of pesticide;
2. the mutual distance between each nozzle on same spray boom can carry out free tune by sliding U-shaped folder set
Section, when being adjusted at rational position, can be also fixed, relative to traditional by the position that locking assembly covers U-shaped folder
Nozzle mounting structure, it is easy to operate, the distribution situation of spray boom top nozzle flexibly can be quickly adjusted, with good conformity farming
The spray requirement of object, ensures the good maintenance effects to crops;
3. locking assembly to be symmetrically distributed in the both sides of U-shaped folder set, ergonomics is complied with, is being needed to U-shaped
When chuck is positioned, it is only necessary to which both hands turn the thumb screw of both sides, can carry out abutting limit by rubber stopper, optimize
Traditional nozzle mounting structure;
4. the spray boom rotational angle of whole device can be controlled by the positive and negative rotation of motor, can be carried out in real time according to sprinkling demand
It adjusts, there is good operability.
Description of the drawings
Fig. 1 is overall structure diagram of the plant protection drone provided by the utility model with adjustable chemical spraying device;
Fig. 2 is that plant protection drone provided by the utility model is shown with the assembling structure that U-shaped folder in adjustable chemical spraying device covers
It is intended to;
Fig. 3 is the A of Fig. 2 to schematic diagram;
Fig. 4 is the B of Fig. 1 to schematic diagram.
Specific implementation mode
Below in conjunction with the accompanying drawings and specific embodiment is further elaborated the utility model.
As Figure 1-Figure 4, the utility model provides a kind of plant protection drone adjustable chemical spraying device, including rack
Bottom plate 1, framework soleplate 1 are located at the bottom of plant protection drone and the both sides of framework soleplate 1 and are equipped with unmanned machine support 2, unmanned plane branch
Frame 2 will not generate interference between the spray boom 5, and the sliding of its center line direction of 1 upper edge of the framework soleplate is provided with adjusting slider
3, adjusting slider 3 is free to slide along the center line direction of framework soleplate 1, adjusting slider 3 be equipped with driving its sliding leading screw 4 and
Leading screw 4 is rotatably dispose on the framework soleplate 1, and screw pair, the rotation of leading screw 4 are constituted between leading screw and adjusting slider 3
Adjusting slider 3 is driven to be slided along the center line direction of framework soleplate 1;The end of the leading screw 4 is connected with the power of its rotation of driving
Component, Power Component can drive leading screw 4 to be rotated;The center line both sides of the framework soleplate 1 are symmetrically hinged with spray boom 5, spray
The both sides of bar 5 symmetrically offer sliding slot 6, and the opening of sliding slot 6 is positioned at the end of the spray boom 5;The center line two of the adjusting slider 3
Side is symmetrically hinged with adjusting rod 7, and the other end of adjusting rod 7 is articulated and connected with the spray boom 5, wherein both sides adjusting rod 7 it is symmetrical
The symmetrical center line of center line and both sides spray boom 5 is located along the same line;Movable sleeve is equipped with multiple with its phase on the spray boom 5
The U-shaped folder set 8 matched, the open end of U-shaped folder set 8 are located above, and U-shaped folder set 8 being capable of free to slide on spray boom 5 and U-shaped folder set 8
Will not be interfered between the adjusting rod 7, U-shaped folder set 8 two relative to madial wall on rotate be provided with and the sliding slot 6
The idler wheel 9 to match, and at least provided with a locking assembly on the side wall of U-shaped folder set 8, locking assembly is used for U-shaped folder set 8
Locking is fixed in position;The bottom of the U-shaped folder set 8 is connected with L-type hanging rod 15, and nozzle 10 is equipped on L-type hanging rod 15, is sprayed
Mouth 10 uses existing conventional nozzle 10, and the end of nozzle 10 is connected with the link for being assembled to it, the link on nozzle 10
It is placed on the L-type hanging rod 15 and is locked to link by screw.The opening and the spray boom 5 of the U-shaped folder set 8
Shape match, when U-shaped folder set 8 is placed on the spray boom 5, the idler wheel 9 that U-shaped folder covers 8 inside both sides is just assemblied in pair
In the sliding slot 6 answered, and the bottom surface of U-shaped folder set 8 is just in contact with the bottom surface of the spray boom 5, realizes that U-shaped folder set 8 can spray
It is free to slide on the length direction of bar 5;The adjusting rod 7 is between spray boom 5 and sliding block, between adjusting rod 7 and nozzle 10 not
It can interfere.
The limit sliding chutes 11 to match with the adjusting slider 3, and limit sliding chutes 11 are offered on the framework soleplate 1
In in the glide direction of adjusting slider 3, adjusting slider 3 can be slided along the length direction of limit sliding chutes 11;Certainly, it adjusts
Other modes also can be used between sliding block 3 and framework soleplate 1 and carry out limit sliding;The sliding of adjusting slider 3 is limited in certain model
In enclosing, so as to limit the variable angle range being located between the spray boom 5 of both sides.
The internal thread hole to match with the leading screw 4, leading screw 4 and the adjusting slider 3 are offered on the adjusting slider 3
Between constitute screw pair, and leading screw 4 is located on the center line direction of the adjusting slider 3;Preferably, the adjusting is slided
The structure of ball guide screw nat can be used between block 3 and leading screw 4.
It there are two the locking assembly is set, and is symmetrically disposed on the two side of the U-shaped folder set 8, is set using this structure
Meter make to be more in line with ergonomics in its operating process, operating personnel can both hands simultaneously operate positioned at both sides locking assembly,
So that quickly 8 locking of U-shaped folder set is limited.
The locking assembly includes thumb screw 12, is assemblied in the rubber stopper 13 of 12 end of thumb screw, the rubber stopper
Mounting hole is offered on 13, the end of thumb screw 12 is inserted into reach in mounting hole and be fixed to the installation of rubber stopper 13;It is described
Thumb screw 12 is threadedly connected on the side wall of the U-shaped folder set 8;The rubber stopper 13 is placed in the inside of the sliding slot 6 and rubber
The outer diameter of rubber plug 13 is less than the width of sliding slot 6, and rubber stopper 13 can move freely on the length direction of sliding slot 6, when turning butterfly
When shape screw rod 12, thumb screw 12 drives rubber stopper 13 to move and is pushed against on the bottom surface of sliding slot 6, to realize to U-shaped folder set 8
Positioning.
The Power Component includes motor 16, master gear, transmission gear and the pinion being located on framework soleplate 1, described
Pinion is connect with the end of the leading screw 4, and pinion and transmission gear engaged transmission, transmission gear engage biography with master gear
It is dynamic;The output shaft assembly connection of the master gear and motor 16;The transmission gear is rotatably dispose on framework soleplate 1;It is described
Motor 16 is connect with the controller inside plant protection drone, and controller can control the operating of motor 16.
Shrapnel 14 is equipped in the middle part of the bottom surface of the U-shaped folder set 8, the both ends of shrapnel 14 are assemblied on the bottom surface of U-shaped folder set 8, U
Type chuck 8 offers card slot on corresponding position, and when U-shaped folder set 8 is assemblied on spray boom 5, shrapnel 14 can be pushed against spray
On the bottom surface of bar 5, prevent U-shaped folder set 8 from generating shaking on spray boom 5.
Preferably, the both ends of the leading screw 4 are each equipped with bearing block 17, bearing block 17 is fixedly connected on the rack
On bottom plate 1, to realize being freely rotated for leading screw 4.
The operation principle of the utility model is as follows:
As shown in figure 4, when motor 16 drives adjusting slider 3 to move down by leading screw 4, the adjusting on adjusting slider 3
Bar 7 can pull the spray boom 5 positioned at both sides, the angle between both sides spray boom 5 to be gradually reduced, then between the end of both sides spray boom 5
Width distance X becomes smaller, correspondingly, plant protection drone in flight course, is sprayed insecticide or the width range of nutrient solution reduces,
To meet the plantation width of crops on ground, good adaptation can be reached to the sprinkling of crops, prevent pesticide spray
The case where spilling surplus, pesticide caused to waste;On the contrary, when motor 16 drives adjusting slider 3 to move up by leading screw 4,
If the adjusting rod 7 on adjusting slider 3 can push the spray boom 5 positioned at both sides, the angle between both sides spray boom 5 gradually to increase, prevent
Occur to spraying insufficient, the bad situation of pesticide spraying effect positioned at the crops of marginal position.
In addition, in actual application, can also carry out flexible modulation to the mutual distance between each nozzle 10, work as tune
It is whole at rational position when, the position of U-shaped folder set 8 can be fixed by locking assembly, it is easy to operate, can be flexible
The distribution situation for quickly adjusting 5 top nozzle 10 of spray boom, required with the sprays of good conformity crops (such as:A part is needed
It is higher to spray closeness), ensure the good maintenance effects to crops.
The utility model is not limited to above-mentioned optional embodiment, anyone can obtain under the enlightenment of the utility model
Other various forms of products, however, making any variation in its shape or structure, every the utility model right that falls into is wanted
The technical solution in confining spectrum is sought, is all fallen within the scope of protection of the utility model.
Claims (8)
1. a kind of plant protection drone adjustable chemical spraying device, including framework soleplate, which is characterized in that the framework soleplate upper edge
The sliding of its center line direction is provided with adjusting slider, and adjusting slider is equipped with the leading screw for driving it to slide and leading screw is rotatably dispose in institute
It states on framework soleplate;The end of the leading screw is connected with the Power Component of its rotation of driving;The center line both sides of the framework soleplate
It symmetrically is hinged with spray boom, the both sides of spray boom symmetrically offer sliding slot;The center line both sides of the adjusting slider are symmetrically hinged with adjusting
Bar, the other end of adjusting rod are articulated and connected with the spray boom;Movable sleeve is equipped with multiple matched U-shaped folders on the spray boom
Set, U-shaped folder set two rotation is provided with the idler wheel to match with the sliding slot relative to madial wall on, and the side wall that U-shaped folder covers
On at least provided with a locking assembly;The bottom of the U-shaped folder set is connected with L-type hanging rod, and nozzle is equipped on L-type hanging rod.
2. the adjustable chemical spraying device of plant protection drone according to claim 1, which is characterized in that on the framework soleplate
The limit sliding chutes to match with the adjusting slider are offered, and limit sliding chutes are located in the glide direction of adjusting slider.
3. the adjustable chemical spraying device of plant protection drone according to claim 1 or 2, which is characterized in that the adjusting is slided
The internal thread hole to match with the leading screw is offered on block.
4. the adjustable chemical spraying device of plant protection drone according to claim 1, which is characterized in that the locking assembly is set
There are two, and be symmetrically disposed on the two side of the U-shaped folder set.
5. the adjustable chemical spraying device of plant protection drone according to claim 1 or 4, which is characterized in that the locking group
Part includes thumb screw, is assemblied in the rubber stopper of thumb screw end, and the thumb screw is threadedly connected to the U-shaped folder set
On side wall;The outer diameter that the rubber stopper is placed in the inside of the sliding slot and rubber stopper is less than the width of sliding slot.
6. the adjustable chemical spraying device of plant protection drone according to claim 1, which is characterized in that the Power Component packet
Motor, master gear, transmission gear and the pinion on framework soleplate are included, the end of the pinion and the leading screw connects
It connects, and pinion and transmission gear engaged transmission, transmission gear and master gear engaged transmission;The output of the master gear and motor
Axis assembly connection.
7. the adjustable chemical spraying device of plant protection drone according to claim 1, which is characterized in that the U-shaped folder set
Shrapnel is equipped in the middle part of bottom surface.
8. the adjustable chemical spraying device of plant protection drone according to claim 1, which is characterized in that the both ends of the leading screw
It is each equipped with bearing block, bearing block is fixedly connected on the framework soleplate.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201820246467.8U CN208080400U (en) | 2018-02-11 | 2018-02-11 | A kind of adjustable chemical spraying device of plant protection drone |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201820246467.8U CN208080400U (en) | 2018-02-11 | 2018-02-11 | A kind of adjustable chemical spraying device of plant protection drone |
Publications (1)
Publication Number | Publication Date |
---|---|
CN208080400U true CN208080400U (en) | 2018-11-13 |
Family
ID=64064511
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201820246467.8U Expired - Fee Related CN208080400U (en) | 2018-02-11 | 2018-02-11 | A kind of adjustable chemical spraying device of plant protection drone |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN208080400U (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110876373A (en) * | 2019-12-25 | 2020-03-13 | 无为县万祠农机专业合作社 | Automatic agricultural pesticide spraying device |
CN110979687A (en) * | 2019-11-07 | 2020-04-10 | 赵世英 | Novel pesticide sprays plant protection unmanned aerial vehicle |
CN112109894A (en) * | 2019-06-20 | 2020-12-22 | 咸宁绿生植保服务有限公司 | Full-automatic pesticide spraying unmanned aerial vehicle and unmanned aerial vehicle route planning method |
CN112591095A (en) * | 2020-12-17 | 2021-04-02 | 南京林业大学 | Agricultural pesticide spraying unmanned aerial vehicle |
WO2021098162A1 (en) * | 2019-11-21 | 2021-05-27 | 华南农业大学 | Spray anti-drifting device for agricultural unmanned aerial vehicle and use method |
CN113895630A (en) * | 2021-11-24 | 2022-01-07 | 深圳市海通互动科技有限公司 | Unmanned aerial vehicle sprinkler and unmanned aerial vehicle thereof |
CN114455078A (en) * | 2022-03-16 | 2022-05-10 | 南京信息工程大学 | Agricultural pesticide spraying unmanned aerial vehicle |
CN115176785A (en) * | 2022-07-14 | 2022-10-14 | 新绛县银剑农机有限公司 | Boom sprayer |
-
2018
- 2018-02-11 CN CN201820246467.8U patent/CN208080400U/en not_active Expired - Fee Related
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112109894A (en) * | 2019-06-20 | 2020-12-22 | 咸宁绿生植保服务有限公司 | Full-automatic pesticide spraying unmanned aerial vehicle and unmanned aerial vehicle route planning method |
CN110979687A (en) * | 2019-11-07 | 2020-04-10 | 赵世英 | Novel pesticide sprays plant protection unmanned aerial vehicle |
CN110979687B (en) * | 2019-11-07 | 2021-05-28 | 天津微孢子生物科技有限责任公司 | Pesticide sprays plant protection unmanned aerial vehicle |
WO2021098162A1 (en) * | 2019-11-21 | 2021-05-27 | 华南农业大学 | Spray anti-drifting device for agricultural unmanned aerial vehicle and use method |
CN110876373A (en) * | 2019-12-25 | 2020-03-13 | 无为县万祠农机专业合作社 | Automatic agricultural pesticide spraying device |
CN110876373B (en) * | 2019-12-25 | 2021-10-15 | 无为县万祠农机专业合作社 | Automatic agricultural pesticide spraying device |
CN112591095A (en) * | 2020-12-17 | 2021-04-02 | 南京林业大学 | Agricultural pesticide spraying unmanned aerial vehicle |
CN113895630A (en) * | 2021-11-24 | 2022-01-07 | 深圳市海通互动科技有限公司 | Unmanned aerial vehicle sprinkler and unmanned aerial vehicle thereof |
CN114455078A (en) * | 2022-03-16 | 2022-05-10 | 南京信息工程大学 | Agricultural pesticide spraying unmanned aerial vehicle |
CN114455078B (en) * | 2022-03-16 | 2023-08-25 | 南京信息工程大学 | Agricultural unmanned aerial vehicle that spills medicine |
CN115176785A (en) * | 2022-07-14 | 2022-10-14 | 新绛县银剑农机有限公司 | Boom sprayer |
CN115176785B (en) * | 2022-07-14 | 2024-04-09 | 新绛县银剑农机有限公司 | Boom sprayer |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN208080400U (en) | A kind of adjustable chemical spraying device of plant protection drone | |
CN108713541A (en) | Plant protection unmanned aerial vehicle of liquid medicine supply of being convenient for based on thing networking | |
CN112208768A (en) | Plant protection unmanned aerial vehicle | |
CN203860305U (en) | Spraying robot based on image processing | |
CN206567120U (en) | A kind of fog gun type crawler type epidemic prevention robot | |
CN205887274U (en) | Multidirectional atomizer | |
CN208228168U (en) | A kind of fruit tree pesticide-spraying cart convenient for adjusting height | |
CN112931472B (en) | Automatic profiling atomizing pesticide applying machine for orchard | |
CN112715115B (en) | Intelligent swing type fertilizer applying device for agriculture | |
CN215684432U (en) | Pesticide applying device for forestry pest control | |
CN211531935U (en) | Landscape plant trimming means | |
CN109874771B (en) | Liquid-dispensing long-acting sprayer | |
CN209600816U (en) | A kind of plant protection drone sprayed insecticide | |
CN204264464U (en) | A kind of convenient regulating type erecting device of agricultural depopulated helicopter | |
CN211442772U (en) | Unmanned aerial vehicle is with outer hanging pesticide sprinkler | |
CN220108968U (en) | Pest control device for forestry seedling | |
CN212243836U (en) | Plant protection unmanned aerial vehicle is with adjusting shower nozzle | |
CN108466282B (en) | Multipurpose greening maintenance mechanical device | |
CN110810381A (en) | A laxative equipment that is used for gardens to have a ration function | |
CN216315050U (en) | Folded cascade agricultural is laxative machine for weeding insecticidal | |
CN111284704A (en) | Anti-shaking plant protection unmanned aerial vehicle | |
CN220391515U (en) | Unmanned aerial vehicle with prevent precipitation structure deinsectization medicament case | |
CN219291756U (en) | Unmanned aerial vehicle for spraying agriculture and forestry | |
CN215043729U (en) | Unmanned aerial vehicle powder spraying device | |
GB1201938A (en) | Power transmitting apparatus more particularly for multi-section mowers |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181113 Termination date: 20200211 |