CN104607329B - Anti-drift rotary disc centrifugal nozzle - Google Patents
Anti-drift rotary disc centrifugal nozzle Download PDFInfo
- Publication number
- CN104607329B CN104607329B CN201510066518.XA CN201510066518A CN104607329B CN 104607329 B CN104607329 B CN 104607329B CN 201510066518 A CN201510066518 A CN 201510066518A CN 104607329 B CN104607329 B CN 104607329B
- Authority
- CN
- China
- Prior art keywords
- centrifugal
- flow guide
- turntable
- double
- liquid
- 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.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
- B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
- B05B3/08—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements in association with stationary outlet or deflecting elements
- B05B3/082—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements in association with stationary outlet or deflecting elements the spraying being effected by centrifugal forces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/02—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling time, or sequence, of delivery
- B05B12/04—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling time, or sequence, of delivery for sequential operation or multiple outlets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
- B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
- B05B3/10—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces
- B05B3/105—Fan or ventilator arrangements therefor
Landscapes
- Nozzles (AREA)
Abstract
The invention discloses an anti-drift turntable centrifugal nozzle which comprises a flow guide housing with an upper opening and a lower opening, wherein: the centrifugal turntable is characterized in that a double-shaft motor is fixed in the flow guide housing, a fan is connected to the upper shaft of the double-shaft motor, the lower shaft is connected with a centrifugal turntable, airflow generated by the fan is guided by the inner wall of the flow guide housing to be uniformly distributed and downwards act on a lower disc opening of the centrifugal turntable, a liquid separation cavity is arranged between the centrifugal turntable and the double-shaft motor and is connected with an external liquid source, a flow distribution opening is formed in the side surface of the liquid separation cavity, the centrifugal turntable is of an inverted bowl-shaped structure, and the flow distribution opening faces a flow guide fillet on the upper portion of the inner side of the centrifugal turntable. The invention has the advantages of utilizing wind power to enable centrifugal liquid drops to have vertical downward initial speed, improving the attachment speed of the liquid drops and reducing the free drift of the liquid drops in the air.
Description
Technical Field
The invention relates to the technical field of spraying devices in the plant protection pharmaceutical industry, in particular to an anti-drift rotary disc centrifugal nozzle.
Background
The pesticide application technology in China widely adopts a large-droplet and large-capacity spraying method, the effective utilization rate of the pesticide is very low, only 20-30% of sprayed pesticide can be deposited on a target and is far lower than the average level of 50% in developed countries, most of the pesticide is lost and drifted in the environment, the control effect is influenced, the utilization rate of the pesticide is reduced, the growth of sensitive crops in non-target areas is seriously influenced, the ecological environment is polluted, and even the poisoning of people and livestock is caused. The existing rotary disc atomizer can realize ultra-low-volume spraying and effectively improve the utilization rate of pesticides, however, the diameter of the droplets of the rotary disc atomizer is generally in the range of 90-120 microns, generally speaking, the droplets with the diameter less than 100 microns are most prone to drift, and the existing rotary disc atomizer cannot solve the problem that the small droplets are seriously drifted.
Disclosure of Invention
The invention aims to solve the technical problem of the prior art and provides an anti-drift rotary disc centrifugal nozzle which uses wind power to enable centrifugal liquid drops to have vertical downward initial speed, can improve the attachment speed of the liquid drops and reduce the free drift of the liquid drops in the air.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the utility model provides an anti carousel centrifugal nozzle that drifts, includes upper and lower open-ended water conservancy diversion housing, wherein: the centrifugal turntable is characterized in that a double-shaft motor is fixed in the flow guide housing, a fan is connected to the upper shaft of the double-shaft motor, the lower shaft is connected with a centrifugal turntable, airflow generated by the fan is guided by the inner wall of the flow guide housing to be uniformly distributed and downwards act on a lower disc opening of the centrifugal turntable, a liquid separation cavity is arranged between the centrifugal turntable and the double-shaft motor and is connected with an external liquid source, a flow distribution opening is formed in the side surface of the liquid separation cavity, the centrifugal turntable is of an inverted bowl-shaped structure, and the flow distribution opening faces a flow guide fillet on the upper portion of the inner side of the centrifugal turntable.
In order to optimize the technical scheme, the specific measures adopted further comprise:
the angle adjusting mechanism is connected to the flow guide housing and comprises a spray head fixing frame and a spray head angle adjusting arc, the spray head angle adjusting arc is fixed to the flow guide housing, the spray head fixing frame is hinged to the flow guide housing through a hinge, a spring clamp is arranged on the spray head fixing frame, a plurality of clamping grooves capable of being clamped with the spring clamp are formed in the spray head angle adjusting arc, and the angle of the flow guide housing is adjusted through the spring clamp and different clamping grooves in a clamping mode.
The liquid separation cavity comprises a liquid inlet cavity and a liquid storage cavity which are communicated with each other, the liquid storage cavity is arranged at the lower part of the liquid inlet cavity, the liquid inlet cavity is communicated with a pagoda head arranged outside the diversion housing through a guide pipe, and the pagoda head is connected with an external liquid source.
The liquid inlet cavity is a cavity with a wide upper part and a narrow lower part and an opening at the lower part, the liquid storage cavity is of a structure with a wide upper part and a narrow lower part, and the shunting port is arranged at the upper part of the liquid storage cavity.
The number of the flow dividing ports is eight, and the flow dividing ports are uniformly distributed on the circumferential surface of the side wall of the upper part of the liquid storage cavity.
The flow guiding cover is internally provided with a connecting arm for fixing the double-shaft motor.
The lower shaft of the double-shaft motor is fixedly connected with the centrifugal turntable through a static set screw.
The static set screw is provided with a motor shaft fixing bayonet which can be fixedly connected with a lower shaft of the double-shaft motor.
Compared with the prior art, the anti-drift rotary disc centrifugal nozzle is provided with the liquid storage cavity at the inner side of the centrifugal rotary disc, controls the flow of the liquid drop outlet through the lateral flow dividing holes, and ensures that the flow of the circumferential liquid medicine is uniform. The liquid medicine is thrown out through the shunting holes to generate primary fragmentation, and then the centrifugal turntable is used for secondary centrifugal atomization. The guide cover is adopted, and the liquid drops centrifuged by the centrifugal turntable have vertical downward initial velocity by wind power, so that the fog drops have enough vertical downward velocity component, the fog drop sedimentation and attachment time under the same environmental condition is shortened, the fog drop drift is effectively reduced, and the target attachment rate is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 isbase:Sub>A sectional view A-A of FIG. 2;
FIG. 4 is a sectional view taken along line B-B of FIG. 3;
FIG. 5 is a schematic view of the structure of the dispensing chamber.
Detailed Description
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings.
Fig. 1 to 5 are schematic structural views of the present invention.
Wherein the reference numbers are: the device comprises a flow guide housing 1, a spray head fixing frame 11, a spray head angle adjusting arc 12, a hinge 13, a spring clamp 14, a clamping groove 15, a connecting arm 16, a double-shaft motor 2, a static set screw 21, a motor shaft fixing bayonet 22, a fan 3, a centrifugal rotating disc 4, a flow guide circular corner 41, a liquid separation cavity 5, a flow splitting port 51, a liquid storage cavity 52, a liquid inlet cavity 53, a pagoda head 54 and a guide pipe 55.
As shown in fig. 1 to 5, the anti-drift turntable centrifugal nozzle of the present invention includes a flow guiding housing 1 with upper and lower openings, and is characterized in that: the double-shaft motor 2 is fixed in the flow guide housing 1, the fan 3 is connected to the upper shaft of the double-shaft motor 2, the centrifugal rotating disc 4 is connected to the lower shaft, airflow generated by the fan 3 is guided to be uniformly distributed through the inner wall of the flow guide housing 1 and acts on the lower disc opening of the centrifugal rotating disc 4 downwards, a liquid separating cavity 5 is arranged between the centrifugal rotating disc 4 and the double-shaft motor 2, the liquid separating cavity 5 is connected with an external liquid source, a flow dividing port 51 is formed in the side face of the liquid separating cavity 5, the centrifugal rotating disc 4 is of an inverted bowl-shaped structure, and the flow dividing port 51 faces a flow guide round corner 41 on the upper portion of the inner side of the centrifugal rotating disc 4.
In the embodiment, the angle adjusting mechanism is connected to the flow guiding cover shell 1, the angle adjusting mechanism comprises a nozzle fixing frame 11 and a nozzle angle adjusting arc 12, the nozzle angle adjusting arc 12 is fixed to the flow guiding cover shell 1, the nozzle fixing frame 11 is hinged to the flow guiding cover shell 1 through a hinge 13, a spring clamp 14 is arranged on the nozzle fixing frame 11, a plurality of clamping grooves 15 capable of being clamped with the spring clamp 14 are formed in the nozzle angle adjusting arc 12, and the angle of the flow guiding cover shell 1 is adjusted through the spring clamp 14 and different clamping grooves 15 in a clamping mode.
In the embodiment, the liquid separation chamber 5 comprises a liquid inlet chamber 53 and a liquid storage chamber 52 which are communicated with each other, the liquid storage chamber 52 is arranged at the lower part of the liquid inlet chamber 53, the liquid inlet chamber 53 is communicated with a pagoda head 54 arranged outside the diversion cover shell 1 through a conduit 55, and the pagoda head 54 is connected with an external liquid source.
In the embodiment, the liquid inlet cavity 53 is a cavity with a wide top and a narrow bottom, and an opening is formed at the lower part, the liquid storage cavity 52 is a structure with a wide top and a narrow bottom, and the diversion port 51 is arranged at the upper part of the liquid storage cavity 52.
In the embodiment, the number of the flow dividing ports 51 is eight, and the flow dividing ports are uniformly distributed on the peripheral surface of the upper side wall of the liquid storage chamber 52.
In the embodiment, a connecting arm 16 for fixing the double-shaft motor 2 is arranged in the flow guiding housing 1.
In an embodiment of the present invention, the lower shaft of the double-shaft motor 2 is fixedly connected with the centrifugal turntable 4 through a static screw 21.
In the embodiment, the static set screw 21 is provided with a motor shaft fixing bayonet 22 which can be fixedly connected with the lower shaft of the double-shaft motor 2.
According to the anti-drift turntable centrifugal nozzle, the double-shaft motor 2 is connected with the power supply through the motor wiring terminal, and the pagoda head is connected to the liquid pump; after the nozzle is fixed by the nozzle fixing frame 11, the spring clamp 14 is pressed down to rotate the flow guide housing 1 to a proper position, so that the notch at the current position on the nozzle angle adjusting arc 12 is embedded with the spring clamp 14. Under the working condition, the double-shaft motor 2 rotates at a high speed, and the upper shaft drives the air flow generated by the blades of the fan 3 to be uniformly distributed and act downwards under the guidance of the flow guide housing 1; the lower shaft of the motor drives the centrifugal turntable 4 to rotate at a high speed. The liquid medicine flows into the conduit through the pagoda head 54 and flows out to the liquid inlet cavity 53 from the other end of the conduit, the liquid medicine flows into the liquid storage cavity 52 along the axial direction by the flow guide wall of the liquid inlet cavity 53 which is contracted at the lower part of the liquid inlet cavity 53, and is uniformly distributed on the inner wall of the liquid storage cavity 52 through the centrifugal action, and eight shunt ports 51 which are uniformly distributed at the position with the largest diameter are thrown out. The liquid medicine has horizontal initial velocity after passing through the shunt port 51, so that the liquid drops can overcome partial surface tension and contact with the inner wall of the centrifugal turntable 4 more fully, the action time of the inner wall of the turntable on the liquid drops is prolonged, and the liquid drops have higher velocity. Then, a thin liquid film is formed along the inner wall of the centrifugal turntable 4 along a diversion fillet tangent to the diversion port 51, and the thin film is broken and atomized under the cutting action of air. The inner wall of the centrifugal turntable 4 is downward, and the fan 3 forms downward wind at the lower edge of the centrifugal turntable 4, so that finally formed droplets have enough vertical downward velocity component when leaving the centrifugal turntable 4. The method shortens the fog drop sedimentation and attachment time under the same environmental condition, effectively reduces the fog drop drift, and improves the target attachment rate.
The above are only preferred embodiments of the present invention, and the scope of the present invention is not limited to the above examples, and all technical solutions that fall under the spirit of the present invention belong to the scope of the present invention. It should be noted that modifications and adaptations to those skilled in the art without departing from the principles of the present invention may be apparent to those skilled in the relevant art and are intended to be within the scope of the present invention.
Claims (4)
1. The utility model provides an anti drift carousel centrifugal nozzle, includes upper and lower open-ended water conservancy diversion housing (1), characterized by: a double-shaft motor (2) is fixed in the flow guide housing (1), a fan (3) is connected to the upper shaft of the double-shaft motor (2), the lower shaft of the double-shaft motor is connected with a centrifugal turntable (4), airflow generated by the fan (3) is guided by the inner wall of the flow guide housing (1) to be uniformly distributed and downwards acts on the lower disc opening of the centrifugal turntable (4), a liquid separation cavity (5) is arranged between the centrifugal turntable (4) and the double-shaft motor (2), the liquid separation cavity (5) is connected with an external liquid source, a flow separation opening (51) is formed in the side surface of the liquid separation cavity (5), the centrifugal turntable (4) is of an inverted-buckled bowl-shaped structure, and the flow separation opening (51) is right opposite to a flow guide round corner (41) on the upper part of the inner side of the centrifugal turntable (4); the angle adjusting mechanism is connected to the flow guide housing (1) and comprises a spray head fixing frame (11) and a spray head angle adjusting arc (12), the spray head angle adjusting arc (12) is fixed to the flow guide housing (1), the spray head fixing frame (11) is hinged to the flow guide housing (1) through a hinge (13), a spring clamp (14) is arranged on the spray head fixing frame (11), a plurality of clamping grooves (15) capable of being clamped with the spring clamp (14) are formed in the spray head angle adjusting arc (12), the angles of the flow guide housing (1) are adjusted in a clamping mode through the spring clamp (14) and different clamping grooves (15), the number of the flow distributing ports (51) is eight, and the flow distributing ports are uniformly distributed on the circumferential surface of the side wall of the upper portion of the liquid storage cavity (52); under the working condition, the liquid medicine has horizontal initial speed after passing through the shunting port (51), so that the liquid drops overcome partial surface tension and are in contact with the inner wall of the centrifugal turntable (4), the action time of the inner wall of the turntable on the liquid drops is prolonged, then a thin liquid film is formed along a flow guide fillet tangent to the shunting port (51) along the inner wall of the centrifugal turntable (4), and the thin film is broken and atomized due to the cutting action of air.
2. The anti-drift centrifugal sprayer with rotating disc according to claim 1, wherein: the flow guide housing (1) is internally provided with a flow guide cover for a connecting arm (16) for fixing the double-shaft motor (2).
3. The anti-drift centrifugal sprayer of a rotary disc as claimed in claim 2, wherein: the lower shaft of the double-shaft motor (2) is fixedly connected with the centrifugal turntable (4) through a static set screw (21).
4. The anti-drift turntable centrifugal sprayer according to claim 3, wherein: and a motor shaft fixing bayonet (22) which can be fixedly connected with the lower shaft of the double-shaft motor (2) is arranged on the static set screw (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510066518.XA CN104607329B (en) | 2015-02-10 | 2015-02-10 | Anti-drift rotary disc centrifugal nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510066518.XA CN104607329B (en) | 2015-02-10 | 2015-02-10 | Anti-drift rotary disc centrifugal nozzle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104607329A CN104607329A (en) | 2015-05-13 |
| CN104607329B true CN104607329B (en) | 2022-11-22 |
Family
ID=53142129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510066518.XA Active CN104607329B (en) | 2015-02-10 | 2015-02-10 | Anti-drift rotary disc centrifugal nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104607329B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105435983A (en) * | 2015-12-17 | 2016-03-30 | 江苏同盛环保技术有限公司 | Novel intelligent atomizer |
| CN108483072B (en) * | 2018-05-31 | 2023-12-26 | 浙江柳林农业机械股份有限公司 | Cereal is even to spill device |
| CN109259531A (en) * | 2018-09-14 | 2019-01-25 | 戴锐城 | A kind of jardiniere of automatic flower watering |
| CN112387437B (en) * | 2020-10-13 | 2021-12-21 | 江苏大学 | Antidrip ultramicro lotus electric spray device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1887441A (en) * | 2006-07-18 | 2007-01-03 | 陈平 | Electrostatic sprayer |
| CN201371110Y (en) * | 2009-03-17 | 2009-12-30 | 农业部南京农业机械化研究所 | Air supply type centrifugal atomizer |
| CN201871440U (en) * | 2010-12-07 | 2011-06-22 | 中国农业大学 | Air-assisted controllable fog drop static spraying system |
| CN202778811U (en) * | 2012-09-14 | 2013-03-13 | 农业部南京农业机械化研究所 | Trolley-type air conveying low-level controllable droplet sprayer |
| CN202799960U (en) * | 2012-09-14 | 2013-03-20 | 农业部南京农业机械化研究所 | Remotely-controlled fog drop spraying machine with controllable air supply variable |
| CN204018065U (en) * | 2014-07-17 | 2014-12-17 | 江苏省农业科学院 | A kind of fixed controlled droplet low pressure spray device and system |
| CN204486072U (en) * | 2015-02-10 | 2015-07-22 | 农业部南京农业机械化研究所 | A kind of anti-drift rotating disk centrifugal energy nozzle |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8991726B2 (en) * | 2007-04-19 | 2015-03-31 | Carl L. C. Kah, Jr. | Sprinkler head nozzle assembly with adjustable arc, flow rate and stream angle |
-
2015
- 2015-02-10 CN CN201510066518.XA patent/CN104607329B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1887441A (en) * | 2006-07-18 | 2007-01-03 | 陈平 | Electrostatic sprayer |
| CN201371110Y (en) * | 2009-03-17 | 2009-12-30 | 农业部南京农业机械化研究所 | Air supply type centrifugal atomizer |
| CN201871440U (en) * | 2010-12-07 | 2011-06-22 | 中国农业大学 | Air-assisted controllable fog drop static spraying system |
| CN202778811U (en) * | 2012-09-14 | 2013-03-13 | 农业部南京农业机械化研究所 | Trolley-type air conveying low-level controllable droplet sprayer |
| CN202799960U (en) * | 2012-09-14 | 2013-03-20 | 农业部南京农业机械化研究所 | Remotely-controlled fog drop spraying machine with controllable air supply variable |
| CN204018065U (en) * | 2014-07-17 | 2014-12-17 | 江苏省农业科学院 | A kind of fixed controlled droplet low pressure spray device and system |
| CN204486072U (en) * | 2015-02-10 | 2015-07-22 | 农业部南京农业机械化研究所 | A kind of anti-drift rotating disk centrifugal energy nozzle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104607329A (en) | 2015-05-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104607329B (en) | Anti-drift rotary disc centrifugal nozzle | |
| WO2019119244A1 (en) | Centrifugal swing disc, spraying device and unmanned aerial vehicle | |
| CN102205289A (en) | Atomizing sprayer | |
| CN108271759A (en) | A kind of multi-rotor unmanned aerial vehicle sprinkling system | |
| CN208016772U (en) | A kind of multi-rotor unmanned aerial vehicle sprinkling system | |
| CN107899404B (en) | Adjustable flue gas distributor for rotary atomization desulfurization process | |
| CN205462835U (en) | Little static centrifugation atomizer | |
| CN113385316A (en) | Centrifugal atomizing spray head | |
| CN204486072U (en) | A kind of anti-drift rotating disk centrifugal energy nozzle | |
| CN103878085B (en) | Spring water injector is jumped in a kind of water control | |
| CN102783476B (en) | Spraying machine and air supply spraying device thereof | |
| RU143459U1 (en) | DEED FOR PROCESSING SEEDS | |
| CN211636984U (en) | Rotary liquid atomizer | |
| CN109174483A (en) | Spiral nozzle is used in a kind of irrigation | |
| CN210107665U (en) | Humidifier cover and ultrasonic humidifying device thereof | |
| CN206095032U (en) | Hydraulic turbine formula splash device | |
| CN204061228U (en) | The fan assembly of tool humidification function | |
| CN207756307U (en) | Unmanned plane centrifugal atomizing nozzle | |
| CN207342928U (en) | A kind of centrifugal atomizer | |
| CN106622718B (en) | High-efficient atomizer of supplementary-shroud combination formula of air current of shower nozzle embedding | |
| CN211133409U (en) | High-efficient type municipal administration spraying dust fall equipment | |
| CN208711985U (en) | A kind of humidifier | |
| CN107138302A (en) | A kind of centrifugal atomizer | |
| CN113615668A (en) | Double-flow-passage water-medicine integrated multifunctional spray head and method | |
| CN204841991U (en) | Give medicine to poor free of charge and send atomizer with wind |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: No. 100, Liuying, Xuanwu District, Nanjing, Jiangsu Province, 210012 Applicant after: NANJING Research Institute FOR AGRICULTURAL MECHANIZATION MINISTRY OF AGRICULTURE Address before: No. 100, Liuying, Xuanwu District, Nanjing, Jiangsu Province, 210012 Applicant before: NANJING Research Institute FOR AGRICULTURAL MECHANIZATION MINISTRY OF AGRICULTURE |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |