CN209527657U - It is a kind of can multi-angle sprinkling drug plant protection drone - Google Patents
It is a kind of can multi-angle sprinkling drug plant protection drone Download PDFInfo
- Publication number
- CN209527657U CN209527657U CN201920186210.2U CN201920186210U CN209527657U CN 209527657 U CN209527657 U CN 209527657U CN 201920186210 U CN201920186210 U CN 201920186210U CN 209527657 U CN209527657 U CN 209527657U
- Authority
- CN
- China
- Prior art keywords
- application case
- medicine
- drug
- plant protection
- protection drone
- 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
Landscapes
- Catching Or Destruction (AREA)
Abstract
The utility model discloses it is a kind of can multi-angle sprinkling drug plant protection drone, including body and application case, the lower section of the body is lifted with application case by connection frame, medicine spraying tube is provided with below the application case, the interlaced drug dispensing spray head being obliquely installed is communicated on the medicine spraying tube, medicine-sucking pump is provided on the outer wall of the application case, the medicine-sucking pump is connected to by grug transportation tube with medicine spraying tube, stirring motor and dosing mouth are provided at the top of the application case, the output shaft of the stirring motor is connected with agitating shaft by shaft coupling, the two sides of the agitating shaft are provided with stirring blade.The utility model, structure is simple, easy to use, can multi-angle drug is sprayed, the spraying range for expanding drug improves the spraying efficiency of drug, and before herbal sprinkling, can rapidly be mixed uniformly, it is time saving and energy saving without manually stirring, it is more practical.
Description
Technical field
The utility model relates to plant protection drone technical field, it is specifically a kind of can multi-angle sprinkling drug plant protection nobody
Machine.
Background technique
With the development of science and technology, huge variation also has occurred in mode of agriculture, working efficiency is more high than artificial
High-tech mechanical equipment gradually work instead of traditional manpower and animal power, plant protection drone is exactly the one of numerous high technology equipments
Kind, plant protection drone is commonly used in agriculture spray field.But existing plant protection drone can not be by medicine during application
Object sprays from different angles, and the drug area coverage sprayed is small, and spraying efficiency is low, and before application, also needs artificial
Medical fluid is injected into after mixing in application case, time-consuming and laborious, practicability is poor.
Utility model content
The purpose of this utility model is to provide it is a kind of can multi-angle sprinkling drug plant protection drone, to solve existing skill
Plant protection drone in art can not spray from different angles drug during application, the drug covering sprayed
Area is small, and spraying efficiency is low, and before application, also needs manually to be injected into medical fluid after mixing in application case, time-consuming to take
The problems such as power, practicability is poor.
To achieve the above object, the utility model provides the following technical solutions: it is a kind of can multi-angle sprinkling drug plant protection
Unmanned plane, including body and application case, the two sides of the body are provided with horn, and the upper end of the horn is provided with propeller,
The lower section of the body is lifted with application case by connection frame, is provided with medicine spraying tube, the medicine spraying tube below the application case
On be communicated with the interlaced drug dispensing spray head being obliquely installed, the bottom surface of the drug dispensing spray head is equipped with equally distributed medicine outlet hole, institute
It states and is provided with medicine-sucking pump on the outer wall of application case, the medicine-sucking pump is connected to by grug transportation tube with medicine spraying tube, the bottom of the application case
Portion is equipped with hydraulic cylinder, is connected between the hydraulic cylinder and medicine spraying tube by hydraulic stem, is provided with and stirs at the top of the application case
Motor and dosing mouth are mixed, the output shaft of the stirring motor is connected with agitating shaft by shaft coupling, and the agitating shaft is vertically arranged
Inside application case, the two sides of the agitating shaft are provided with stirring blade, and deflector hole, the machine are offered on the stirring blade
The bottom end of the fixed organic frame in the bottom of body, the rack is connected with support base, the bottom setting of the support base by shock structure
There is rubber pad.
Preferably, the drug dispensing spray head is plate-like hollow structure, passes through communicating pipe between the drug dispensing spray head and medicine spraying tube
Connection.
Preferably, the top of the dosing mouth is provided with sealing cover, is provided with filter screen on the inside of the dosing mouth.
Preferably, the pumping pencil being through to inside application case, the pumping pencil and application case are connected on the medicine-sucking pump
Junction be equipped with sealing ring, it is described take out pencil end be communicated with metal filtration bulb, the metal filtration bulb is equipped with
Equally distributed filter hole.
Preferably, it is provided with screw thread electric heating tube on the inner wall of the application case, is provided with one on the outside of the application case
Layer insulating.
Preferably, the shock structure is made of telescopic rod and the reset spring being set on the outside of telescopic rod.
Compared with prior art, the utility model has the beneficial effects that the utility model, structure is simple, easy to use, leads to
It crosses and the different drug dispensing spray head of multiple tilt angles is set on medicine spraying tube, drug is by different angles during may make application
It is sprayed, expands the spraying range of drug, improve the spraying efficiency of drug, and before herbal sprinkling, pass through stirring
Axis drives under the stirring of stirring blade, can rapidly be uniformly mixed the medical fluid being administered in case, without manually to medical fluid
It is stirred, it is time saving and energy saving, meanwhile, under the lifting that medicine spraying tube is driven by hydraulic stem, both convenient for adjustment medicine spraying tube as needed
Using height, and convenient for medicine spraying tube is retracted on the inside of rack after application, space is not take up, by screw thread electric heating tube to medicine
Under the heating of liquid, medical fluid is being administered the case where freezing in case when can avoid winter, in addition, shock structure and rubber by setting
Rubber mat can effectively buffer the impact force between when unmanned plane lands and ground, enhance stability when unmanned plane lands, lead to
The filter screen and metal filtration ball for crossing setting, the impurity contained in medical fluid can be preferably filtered out before and after medicinal liquid agitating, is kept away
Having exempted from these impurity blocking drug dispensing spray head influences being normally carried out for application work.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model;
Fig. 2 is the medicine spraying tube structural schematic diagram of the utility model;
Fig. 3 is the application case cross-sectional view of the utility model;
Fig. 4 is the application case main view of the utility model;
Fig. 5 is the rack construction schematic diagram of the utility model.
In figure: 1, body;2, horn;3, propeller;4, connection frame;5, it is administered case;6, rack;7, hydraulic cylinder;8, hydraulic
Bar;9, medicine spraying tube;10, drug dispensing spray head;11, grug transportation tube;12, support base;13, medicine outlet hole;14, dosing mouth;15, sealing cover;16,
Agitating shaft;17, stirring motor;18, filter screen;19, stirring blade;20, deflector hole;21, screw thread electric heating tube;22, pencil is taken out;
23, metal filtration bulb;24, insulating;25, medicine-sucking pump;26, shock structure;27, rubber pad;28, telescopic rod;29, spiral
Damping spring.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Please refer to Fig. 1-5, in the utility model embodiment, it is a kind of can multi-angle sprinkling drug plant protection drone, including
Body 1 and application case 5, the two sides of body 1 are provided with horn 2, and the upper end of horn 2 is provided with propeller 3, and the lower section of body 1 is logical
It crosses connection frame 4 and is lifted with application case 5, the lower section of application case 5 is provided with medicine spraying tube 9, interlaced inclination is communicated on medicine spraying tube 9
The bottom surface of the drug dispensing spray head 10 of setting, drug dispensing spray head 10 is equipped with equally distributed medicine outlet hole 13, using the medicine spraying tube of this structure
9, it may make drug during application to be sprayed by different angles, expand the spraying range of drug, improve drug
Spraying efficiency, be administered on the outer wall of case 5 and be provided with medicine-sucking pump 25, medicine-sucking pump 25 is connected to by grug transportation tube 11 with medicine spraying tube 9, is applied
The bottom of medicine-chest 5 is equipped with hydraulic cylinder 7, is connected between hydraulic cylinder 7 and medicine spraying tube 9 by hydraulic stem 8, is driven by hydraulic cylinder 7
Hydraulic stem 8 drives under the lifting of medicine spraying tube 9, and be not only convenient for adjustment medicine spraying tube 9 as needed uses height, but also being convenient for will after being administered
Medicine spraying tube 9 is retracted to 6 inside of rack, and the top for being not take up space application case 5 is provided with stirring motor 17 and dosing mouth 14, stirs
The output shaft of motor 17 is connected with agitating shaft 16 by shaft coupling, and agitating shaft 16 is vertically arranged in inside application case 5, agitating shaft 16
Two sides be provided with stirring blade 19, deflector hole 20 is offered on stirring blade 19, before herbal sprinkling, passes through agitating shaft 16
Under the stirring for driving stirring blade 19, rapidly the medical fluid being administered in case 5 can be uniformly mixed, without manually to medical fluid
It is stirred, time saving and energy saving, the fixed organic frame 6 in the bottom of body 1, the bottom end of rack 6 is connected with support base by shock structure 26
12, the bottom of support base 12 is provided with rubber pad 27, shock structure 26 and rubber pad 27, can effectively buffer unmanned plane landing when with
Impact force between ground, enhances stability when unmanned plane land, and drug dispensing spray head 10 is plate-like hollow structure, drug dispensing spray head
It is connected between 10 and medicine spraying tube 9 by communicating pipe, the top of dosing mouth 14 is provided with sealing cover 15, the inside setting of dosing mouth 14
There is filter screen 18, the pumping pencil 22 being through to inside application case 5 is connected on medicine-sucking pump 25, take out pencil 22 and is administered the company of case 5
It meets place and is equipped with sealing ring, the end for taking out pencil 22 is communicated with metal filtration bulb 23, and metal filtration bulb 23 is equipped with uniform point
The filter hole of cloth, under the double filtration by strainer 18 and metal filtration bulb 23, can before and after medicinal liquid agitating preferable mistake
The impurity contained in medical fluid is filtered out, avoiding these impurity blocking drug dispensing spray head 10 influences being normally carried out for application work, is administered
Screw thread electric heating tube 21 is provided on the inner wall of case 5, by screw thread electric heating tube 21 under the heating of medical fluid, when can avoid winter
Medical fluid is being administered the case where freezing in case, and the outside for being administered case 5 is provided with one layer of insulating 24, shock structure 26 be by
Telescopic rod 28 and the reset spring composition for being set in 28 outside of telescopic rod.
The working principle of the utility model is: in use, pesticide and water are injected from dosing mouth 14 by a certain percentage first
Into application case 5, then dosing mouth 14 is sealed up with sealing cover 15, and start stirring motor 17, the work of stirring motor 17 is logical
Crossing agitating shaft 16 drives stirring blade 19 constantly to rotate, water and pesticide the stirring in stirring blade 19 being injected into application case 5
It mixes lower mixing together, after medical fluid mixes, starts the unmanned plane, unmanned plane work drives application case 5 to fly, in unmanned plane
During flight, the work of hydraulic cylinder 7 is moved down by the drive medicine spraying tube 9 of hydraulic stem 8 stretches out on the inside of rack 6, takes out simultaneously
The work of Teat pipette 25 is pumped to the medical fluid being administered in case 5 in medicine spraying tube 9 by taking out pencil 22 and grug transportation tube 11, enters medicine spraying tube
Medical fluid in 9 sprays from different angles under the sprinkling of the different drug dispensing spray head 10 of multiple tilt angles, completes to farming
The application work of object.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
Claims (6)
1. one kind can multi-angle sprinkling drug plant protection drone, including body (1) and be administered case (5), it is characterised in that: it is described
The two sides of body (1) are provided with horn (2), and the upper end of the horn (2) is provided with propeller (3), the lower section of the body (1)
It is lifted with application case (5) by connection frame (4), is provided with medicine spraying tube (9) below the application case (5), the medicine spraying tube (9)
On be communicated with the interlaced drug dispensing spray head (10) being obliquely installed, the bottom surface of the drug dispensing spray head (10) be equipped with it is equally distributed go out
Medicine hole (13), it is described application case (5) outer wall on be provided with medicine-sucking pump (25), the medicine-sucking pump (25) by grug transportation tube (11) with
The bottom of medicine spraying tube (9) connection, application case (5) is equipped with hydraulic cylinder (7), between the hydraulic cylinder (7) and medicine spraying tube (9)
It is connected by hydraulic stem (8), is provided with stirring motor (17) and dosing mouth (14), the stirring at the top of the application case (5)
The output shaft of motor (17) is connected with agitating shaft (16) by shaft coupling, and the agitating shaft (16) is vertically arranged in application case (5)
The two sides of inside, the agitating shaft (16) are provided with stirring blade (19), offer deflector hole on the stirring blade (19)
(20), the bottom of the body (1) is fixed organic frame (6), and the bottom end of the rack (6) is connected with support by shock structure (26)
Seat (12), the bottom of the support base (12) is provided with rubber pad (27).
2. one kind according to claim 1 can multi-angle sprinkling drug plant protection drone, it is characterised in that: the drug dispensing
Spray head (10) is plate-like hollow structure, is connected between the drug dispensing spray head (10) and medicine spraying tube (9) by communicating pipe.
3. one kind according to claim 1 can multi-angle sprinkling drug plant protection drone, it is characterised in that: the dosing
The top of mouth (14) is provided with sealing cover (15), is provided with filter screen (18) on the inside of the dosing mouth (14).
4. one kind according to claim 1 can multi-angle sprinkling drug plant protection drone, it is characterised in that: the pumping medicine
It is connected on pump (25) and is through to the internal pumping pencil (22) of application case (5), the connection taken out pencil (22) and be administered case (5)
Place is equipped with sealing ring, and the end for taking out pencil (22) is communicated with metal filtration bulb (23), the metal filtration bulb (23)
It is equipped with equally distributed filter hole.
5. one kind according to claim 1 can multi-angle sprinkling drug plant protection drone, it is characterised in that: the application
It is provided on the inner wall of case (5) screw thread electric heating tube (21), is provided with one layer of insulating on the outside of the application case (5)
(24).
6. one kind according to claim 1 can multi-angle sprinkling drug plant protection drone, it is characterised in that: the damping
Column (26) is made of telescopic rod (28) and the reset spring being set on the outside of telescopic rod (28).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201920186210.2U CN209527657U (en) | 2019-02-02 | 2019-02-02 | It is a kind of can multi-angle sprinkling drug plant protection drone |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201920186210.2U CN209527657U (en) | 2019-02-02 | 2019-02-02 | It is a kind of can multi-angle sprinkling drug plant protection drone |
Publications (1)
Publication Number | Publication Date |
---|---|
CN209527657U true CN209527657U (en) | 2019-10-25 |
Family
ID=68272973
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201920186210.2U Expired - Fee Related CN209527657U (en) | 2019-02-02 | 2019-02-02 | It is a kind of can multi-angle sprinkling drug plant protection drone |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN209527657U (en) |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110973105A (en) * | 2019-12-30 | 2020-04-10 | 刘月英 | Spout medicine type plant protection unmanned aerial vehicle |
CN111891363A (en) * | 2020-06-18 | 2020-11-06 | 张国华 | Unmanned aerial vehicle pesticide application method based on big data technology |
CN112219828A (en) * | 2020-09-30 | 2021-01-15 | 海南中橡科技有限公司 | Modular assembled medicine unmanned aerial vehicle that spouts |
CN112314580A (en) * | 2020-11-26 | 2021-02-05 | 合肥扬扬农业科技有限公司 | Pesticide spraying machine |
CN112429239A (en) * | 2020-11-17 | 2021-03-02 | 司徒海酮 | Unmanned aerial vehicle for spraying pesticide and method thereof |
CN112550715A (en) * | 2020-12-11 | 2021-03-26 | 秦鹏 | Sowing system and sowing method for agricultural and forestry unmanned aerial vehicle |
CN112645508A (en) * | 2021-01-19 | 2021-04-13 | 江西楚杭环保科技有限公司 | Landfill sewage treatment device with oxygenation function |
CN112849410A (en) * | 2021-02-20 | 2021-05-28 | 济源市农业技术推广中心 | Farming plant protection unmanned aerial vehicle |
CN113232862A (en) * | 2021-05-11 | 2021-08-10 | 深圳鹏源达建工集团有限公司 | Efficient is sprinkler for afforestation engineering |
CN113508800A (en) * | 2021-03-26 | 2021-10-19 | 南京林业大学 | Agricultural precision pesticide application unmanned aerial vehicle device for pest control |
WO2022032499A1 (en) * | 2020-08-12 | 2022-02-17 | 南京溧水高新创业投资管理有限公司 | Agricultural pesticide pouring and spraying device capable of being hoisted |
CN114455078A (en) * | 2022-03-16 | 2022-05-10 | 南京信息工程大学 | Agricultural pesticide spraying unmanned aerial vehicle |
CN114537671A (en) * | 2022-03-10 | 2022-05-27 | 成都农业科技职业学院 | Unmanned aerial vehicle device of dusting fast |
CN114600861A (en) * | 2022-04-19 | 2022-06-10 | 杭州两仪科技有限公司 | Pressurization plant protection unmanned aerial vehicle case of giving medicine to poor free of charge of pneumatic stirring |
CN115723951A (en) * | 2022-12-12 | 2023-03-03 | 华南农业大学 | Adjustable unmanned aerial vehicle that gives medicine to poor free of charge that sprays scope |
CN116280203A (en) * | 2023-05-19 | 2023-06-23 | 北京建工环境修复股份有限公司 | Unmanned aerial vehicle sprays auxiliary assembly |
-
2019
- 2019-02-02 CN CN201920186210.2U patent/CN209527657U/en not_active Expired - Fee Related
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110973105A (en) * | 2019-12-30 | 2020-04-10 | 刘月英 | Spout medicine type plant protection unmanned aerial vehicle |
CN111891363A (en) * | 2020-06-18 | 2020-11-06 | 张国华 | Unmanned aerial vehicle pesticide application method based on big data technology |
WO2022032499A1 (en) * | 2020-08-12 | 2022-02-17 | 南京溧水高新创业投资管理有限公司 | Agricultural pesticide pouring and spraying device capable of being hoisted |
CN112219828A (en) * | 2020-09-30 | 2021-01-15 | 海南中橡科技有限公司 | Modular assembled medicine unmanned aerial vehicle that spouts |
CN112219828B (en) * | 2020-09-30 | 2022-05-17 | 海南天然橡胶产业集团股份有限公司 | Modular assembled medicine unmanned aerial vehicle that spouts |
CN112429239A (en) * | 2020-11-17 | 2021-03-02 | 司徒海酮 | Unmanned aerial vehicle for spraying pesticide and method thereof |
CN112314580A (en) * | 2020-11-26 | 2021-02-05 | 合肥扬扬农业科技有限公司 | Pesticide spraying machine |
CN112550715A (en) * | 2020-12-11 | 2021-03-26 | 秦鹏 | Sowing system and sowing method for agricultural and forestry unmanned aerial vehicle |
CN112645508A (en) * | 2021-01-19 | 2021-04-13 | 江西楚杭环保科技有限公司 | Landfill sewage treatment device with oxygenation function |
CN112849410A (en) * | 2021-02-20 | 2021-05-28 | 济源市农业技术推广中心 | Farming plant protection unmanned aerial vehicle |
CN113508800B (en) * | 2021-03-26 | 2022-04-12 | 南京林业大学 | Agricultural precision pesticide application unmanned aerial vehicle device for pest control |
CN113508800A (en) * | 2021-03-26 | 2021-10-19 | 南京林业大学 | Agricultural precision pesticide application unmanned aerial vehicle device for pest control |
CN113232862B (en) * | 2021-05-11 | 2022-04-08 | 深圳鹏源达建工集团有限公司 | Efficient is sprinkler for afforestation engineering |
CN113232862A (en) * | 2021-05-11 | 2021-08-10 | 深圳鹏源达建工集团有限公司 | Efficient is sprinkler for afforestation engineering |
CN114537671A (en) * | 2022-03-10 | 2022-05-27 | 成都农业科技职业学院 | Unmanned aerial vehicle device of dusting fast |
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 |
CN114600861A (en) * | 2022-04-19 | 2022-06-10 | 杭州两仪科技有限公司 | Pressurization plant protection unmanned aerial vehicle case of giving medicine to poor free of charge of pneumatic stirring |
CN115723951A (en) * | 2022-12-12 | 2023-03-03 | 华南农业大学 | Adjustable unmanned aerial vehicle that gives medicine to poor free of charge that sprays scope |
CN116280203A (en) * | 2023-05-19 | 2023-06-23 | 北京建工环境修复股份有限公司 | Unmanned aerial vehicle sprays auxiliary assembly |
CN116280203B (en) * | 2023-05-19 | 2023-07-21 | 北京建工环境修复股份有限公司 | Unmanned aerial vehicle sprays auxiliary assembly |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN209527657U (en) | It is a kind of can multi-angle sprinkling drug plant protection drone | |
CN208318042U (en) | A kind of plant protection drone convenient for cleaning medicine-chest | |
CN209711225U (en) | A kind of unmanned plane automatic medicine spraying device | |
CN206923555U (en) | A kind of a wide range of farmland sprinkling irrigation equipment | |
CN207411356U (en) | Soybean planting pesticide spraying device | |
CN109892210A (en) | A kind of water-saving treegarden irrigation device | |
CN111727714A (en) | Fixed sprinkler for garden grassland maintenance and use method | |
CN110226580B (en) | Afforestation intelligence spray set | |
CN109845717A (en) | A kind of unmanned plane automatic medicine spraying device | |
CN209634724U (en) | A kind of agricultural plant protection unmanned plane | |
CN206641281U (en) | A kind of pesticide spray truck for sweet shaddock tree spray | |
CN210869130U (en) | Energy-conserving water jet equipment is used in afforestation | |
CN206078753U (en) | Novel special plant protection machinery of matrimony vine grape is prevent wind to foldable pair of wing of high -efficient liftable | |
CN215012959U (en) | Afforestation engineering is with curing means who has intermittent type formula even stirring structure | |
CN212139052U (en) | Sprinkler that farming used | |
CN213404417U (en) | Vegetation watering environment-friendly watering device for municipal works | |
CN209161473U (en) | A kind of novel plant protection drone chemicals dosing plant | |
CN209330972U (en) | A kind of estate management greening chemical spraying device | |
CN207805608U (en) | A kind of reaction kettle convenient for safeguarding | |
CN205390123U (en) | Biological pesticide discharges device | |
CN112913813A (en) | But agricultural atomizing unmanned aerial vehicle of quick replacement explosive barrel | |
CN206879435U (en) | A kind of water-soluble fertilizer flusher | |
CN210206601U (en) | Pesticide concentration ratio bucket | |
CN208996457U (en) | A kind of building discharging dust-settling device | |
CN218921388U (en) | Insect pest prevention liquid medicine spraying equipment |
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: 20191025 Termination date: 20220202 |