CN109864058B - Plant powder fixed-point quantitative sprayer - Google Patents
Plant powder fixed-point quantitative sprayer Download PDFInfo
- Publication number
- CN109864058B CN109864058B CN201910302387.9A CN201910302387A CN109864058B CN 109864058 B CN109864058 B CN 109864058B CN 201910302387 A CN201910302387 A CN 201910302387A CN 109864058 B CN109864058 B CN 109864058B
- Authority
- CN
- China
- Prior art keywords
- powder
- cavity
- spraying
- medicine
- medicament
- 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
Landscapes
- Catching Or Destruction (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Nozzles (AREA)
Abstract
The invention belongs to the field of botany, and relates to a fixed-point quantitative sprayer for plant powder, which comprises a spray rod and a medicament bottle, wherein the medicament bottle is arranged at the lower part of the spray rod, a spray head is arranged at the top of the spray rod, the lower end of the spray head is connected with a medicament guide pipe, the other end of the medicament guide pipe is connected with the medicament bottle, and the medicament bottle is also connected with a high-pressure gas conveying device through a pressure guide pipe. The powder spraying device is simple in structure and high in practicability, can be used for spraying powder to plants, particularly high-stalk crops such as betel nuts, at fixed points and in a quantitative mode, solves the problem that the powder cannot be accurately applied to target sites in the powder application process, reduces the loss of the powder, improves the utilization rate and the pesticide effect of the powder, is particularly suitable for preventing and treating plant diseases and insect pests, is beneficial to improving the prevention and treatment effect, and achieves the effect of reducing the application amount and improving the effect in the powder application process.
Description
Technical Field
The invention belongs to the field of botany, relates to a powder spraying device, and particularly relates to a fixed-point quantitative sprayer for artificial pollination and powdery medicine application to plants, particularly tall plants.
Background
The occurrence of a large number of plant diseases and insect pests is one of the main problems troubling the production of agriculture and forestry. During the period of occurrence of plant diseases and insect pests, the most common method is still spraying of powder pesticide, therefore, the powder spraying operation is one of the important means for preventing and treating plant diseases and insect pests. Moreover, with the continuous development of science and technology, it is also one of the important characteristics of modern agriculture to adopt artificial intervention means to adjust the growth of plants, for example, the yield can be effectively improved by adopting intervention means to carry out artificial pollination, and the like, thus conforming to the high-yield, high-efficiency and low-cost concepts of modern agriculture.
The powder spraying operation is a process of spraying powder, such as pesticide, pollen and the like, on plants, for tall trees, the current powder spraying operation basically adopts a plant powder spraying machine to spray the powder on tree crowns in a covering mode, fixed-point quantitative spraying cannot be achieved, the operation intensity is increased, a large amount of powder falls on the ground, in the air and on other non-target sites, powder waste is caused, the efficiency is low, and the effect is poor.
Disclosure of Invention
The invention aims to provide a plant powder fixed-point quantitative sprayer aiming at the defects of the prior art, which can be used for spraying powder to plants at fixed points and quantitatively, solves the problem that the powder cannot be accurately applied to target sites in the powder application process, reduces the loss of the powder, improves the utilization rate and the drug effect of the powder, and achieves the effect of reducing the application and improving the efficiency in the powder application process.
The technical scheme adopted by the invention is as follows:
the utility model provides a plant powder fixed point ration sprayer, includes spray lance, medicament bottle, and the medicament bottle sets up in the lower part of spray lance, sets up the shower nozzle at the top of spray lance, and the shower nozzle lower extreme is connected with the medicament pipe, and the other end and the medicament bottle of medicament pipe are connected, and the medicament bottle still is connected with high-pressure gas conveyor through the pressure pipe, utilizes high-pressure gas conveyor can carry high-pressure gas to the medicament bottle. The medicine bottle comprises a medicine containing cavity and a medicine spraying cavity, the medicine containing cavity and the medicine spraying cavity are arranged in the left-right direction, the medicine containing cavity is designed into a special-shaped funnel-shaped structure, the bottom of the medicine containing cavity inclines towards the medicine spraying cavity, a mouth part outlet is positioned in the medicine spraying cavity, a powdery medicine placed in the medicine containing cavity can smoothly flow to the medicine spraying cavity from a mouth part under the action of gravity, and a vertical pull type sealing plate is arranged at the mouth part outlet and used for plugging or opening the mouth part outlet of the medicine containing cavity; the spraying cavity is designed into a straight tube-shaped tube cavity structure, the upper port is connected with a medicament guide tube, a piston type metering and adjusting block is arranged in the tube cavity at the lower part, the setting position of the metering and adjusting block is lower than the position of the outlet of the nozzle part of the medicament containing cavity, the space below the outlet of the nozzle part of the medicament containing cavity is adjusted by adjusting the upper and lower positions of the metering and adjusting block, so as to adjust the powder amount flowing from the outlet of the nozzle part of the medicament containing cavity to the spraying cavity, a powder spraying tube is sleeved at the middle part of the metering and adjusting block, one end of the powder spraying tube is led to the spraying cavity, the other end of the powder spraying tube is connected with a pressure guide tube, when the high-pressure gas conveying device works, high-pressure gas can be conveyed into the spraying cavity through the pressure guide tube and the powder spraying tube, the powder in the spraying cavity is blown to a spray nozzle at the top of a spray rod, one end of the powder spraying tube led to the spraying cavity is provided with a check valve, so as to prevent the powder from falling into the spraying tube, the high-pressure gas can be conveyed into the spraying cavity in the spraying cavity, the lower end of the metering and adjusting block is fixedly connected with a hollow core rod, the outer diameter of the core rod is slightly smaller than the outer diameter of the metering adjusting block or the inner diameter of the medicine spraying cavity, external threads are arranged on the core rod, a loading and unloading type support is arranged at the lower end of the medicine spraying cavity, an adjusting nut capable of rotating randomly is arranged on the support, the adjusting nut is located in the axial direction of the medicine spraying cavity, internal threads of the adjusting nut are matched with the external threads of the core rod, the adjusting nut is screwed into the core rod, the core rod is pushed to move up and down by the aid of rotation of the adjusting nut, and therefore the metering adjusting block is driven to move up and down in the medicine spraying cavity.
As a further improvement of the invention, the spray rod is designed into a height-adjustable structure, and the height (length) of the spray rod is adjusted by adopting a telescopic, multi-section or other structure, so that the spray rod is suitable for operation target sites with different heights.
As a further improvement of the invention, the high-pressure gas conveying device is a blower, the gas pressure is increased by the blower and the high-pressure gas is conveyed into the spraying cavity through a pressure conduit and a spraying pipe to carry out spraying operation. Or the high-pressure gas conveying device consists of a gas storage tank and a gas compressor, the gas compressor conveys the high-pressure gas to the gas storage tank for storage, and when powder spraying is needed, a valve is opened, so that the high-pressure gas in the gas storage tank is conveyed to the spraying cavity through a pressure guide pipe and a powder spraying pipe for powder spraying operation.
As a further improvement of the invention, a return spring is arranged on the pull-out type sealing plate.
As a further improvement of the invention, the central part of the metering and adjusting block is recessed inwards to form a funnel-shaped structure, and the outlet of the nozzle part of the metering and adjusting block is connected with the powder spraying pipe, so that dead corners of high-pressure gas during powder spraying operation in the powder spraying cavity can be avoided, and the situation that all medicaments in the powder spraying cavity are sprayed on target sites is ensured.
As a further improvement of the invention, a long strip-shaped through hole is radially arranged on the side wall of the powder spraying cavity at a position slightly higher than the outlet of the nozzle part of the powder containing cavity, the linear length of the through hole is equal to or less than the inner diameter of the powder spraying cavity, a movable sealing plate is arranged in the through hole, and the sealing plate is connected with the pull-out sealing plate through a connecting piece. When the pull-type sealing plate seals the outlet of the nozzle part of the medicine containing cavity, the sealing plate is positioned in the strip-shaped through hole on the side wall of the powder spraying cavity to keep the powder spraying cavity smooth. When the sealing plate is pulled out and the nozzle outlet of the powder containing cavity is opened, the sealing plate extends out of the strip-shaped through hole along with the pulling of the sealing plate in the radial direction (the radial direction of the powder spraying cavity), and the pipe cavity of the powder spraying cavity is sealed at the position slightly higher than the nozzle outlet of the powder containing cavity, so that a quantitative space (the space for loading powder in the powder spraying cavity) can be formed between the sealing plate and the metering adjusting block, and the powder is prevented from flowing into the pipe cavity of the powder spraying cavity too much.
As a further improvement of the invention, the volume value is marked on the core bar, and the volume of the medicine containing space in the medicine spraying cavity is known according to the up-down moving position of the core bar, so that the medicine loading capacity is known.
The powder spraying device is simple in structure and high in practicability, can be used for spraying powder to plants, particularly high-stalk crops such as betel nuts, at fixed points and in a quantitative mode, solves the problem that the powder cannot be accurately applied to target sites in the powder application process, reduces the loss of the powder, improves the utilization rate and the pesticide effect of the powder, is particularly suitable for preventing and treating plant diseases and insect pests, is beneficial to improving the prevention and treatment effect, and achieves the effect of reducing the application amount and improving the effect in the powder application process.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic sectional view of the structure of the medicine bottle of the present invention.
Fig. 3 is a schematic view of the structure of the medicine bottle of the present invention.
In the figure: 1. a spray rod; 2. a nozzle holder; 3. a spray head; 4. a guide ring; 5. a medicament conduit; 6. a medicament bottle; 7. a bracket; 8. a pressure conduit; 9. a blower; 10. a medicine spraying cavity; 11. an upper port of the pesticide spraying cavity; 12. a medicine containing cavity; 13. a pull type sealing plate; 14. a support; 15. a powder spraying pipe; 16. adjusting the screw cap; 17. a core bar; 18. a metering adjusting block; 19. a through hole; 20. and (7) closing the plate.
Detailed Description
The invention is further described with reference to the following figures and specific examples, but not to be construed as being limited thereto.
In the structure shown in fig. 1, the plant powder fixed-point quantitative sprayer designed by the invention comprises a spray rod 1 and a medicament bottle 6, wherein the spray rod 1 is designed to be of a height-adjustable structure and can be suitable for operation target sites with different heights, a bracket 7 is arranged at the lower part of the spray rod, the medicament bottle 6 is placed on the bracket, a nozzle frame 2 is arranged at the top of the spray rod, a nozzle 3 is fixed on the nozzle frame 2, the lower end of the nozzle 3 is connected with a medicament guide pipe 5, the other end of the medicament guide pipe is connected with the medicament bottle 6, the medicament guide pipe 5 is arranged on the spray rod 1 through a guide ring 4, the medicament bottle is also connected with a blower 9 through a pressure guide pipe 8, high-pressure gas is conveyed to the medicament bottle 6 through the blower 9, and a valve is arranged on the pressure guide pipe 8 and can be in an electric control mode or other control modes.
The medicament bottle 6 designed by the invention consists of a medicament containing cavity 12 and a medicament spraying cavity 10, as shown in figures 2 and 3, the medicament containing cavity 12 and the medicament spraying cavity 10 are arranged in the left-right direction, wherein the medicament containing cavity 12 is designed into a special-shaped funnel-shaped structure, a cavity opening is provided with a cavity cover, the bottom of the cavity cover inclines towards the medicament spraying cavity 10, a nozzle outlet is positioned in the medicament spraying cavity, a vertical pull-type sealing plate 13 is arranged at the nozzle outlet and used for plugging or opening the nozzle outlet of the medicament containing cavity, and a return spring is arranged on the pull-type sealing plate. The spraying cavity is designed into a straight tube-shaped tube cavity structure, the caliber of an upper port 11 of the spraying cavity is gradually reduced and is connected with a medicament guide tube 5, a piston type metering adjusting block 18 is arranged in a lower tube cavity, the setting position of the metering adjusting block is lower than the position of a nozzle part outlet of a medicament containing cavity, the upper position and the lower position of the metering adjusting block (namely the distance between the metering adjusting block and the nozzle part outlet of the upper medicament containing cavity) are adjusted to adjust the space below the nozzle part outlet of the medicament containing cavity (the medicament containing space in the spraying cavity) so as to adjust the amount of powder flowing from the nozzle part outlet of the medicament containing cavity to the spraying cavity, the central part of the metering adjusting block 18 is inwards concave to form a funnel-shaped structure, the nozzle part outlet is connected with a powder spraying tube 15, the other end of the powder spraying tube is connected with a pressure guide tube 8, when an air blower 9 works, high-pressure gas can be conveyed into the spraying cavity through the pressure guide tube 8 and the powder spraying tube 15, and the powder in the spraying cavity is blown to a nozzle at the top of the spraying rod, a check valve is arranged at one end of the powder spraying pipe, which leads to the powder spraying cavity, so that powder can be prevented from falling into the powder spraying pipe, and high-pressure gas can be conveyed into the powder spraying cavity; a hollow core rod 17 is fixed at the lower end of the metering adjusting block 18 by using a screw, the powder spraying pipe 15 is placed in the core rod 15, the outer diameter of the core rod is slightly smaller than the outer diameter of the metering adjusting block or the inner diameter of the powder spraying cavity, and external threads are arranged on the core rod; the lower extreme in spouting the medicine chamber sets up vertical loading and unloading formula support 14, sets up the regulation nut 16 that can rotate at will on the support, and regulation nut 16 is located the axial in spouting the medicine chamber, and the internal thread of regulation nut and the external screw thread phase-match of core bar are earlier in the regulation nut precession core bar, then utilize the screw to fix support 14 on the lateral wall in spouting medicine chamber 10, and the rotation regulation nut promotes reciprocating of core bar to drive the measurement regulating block and reciprocating in spouting the medicine chamber.
In order to further limit the medicine containing space in the medicine spraying cavity, a strip-shaped through hole 19 is radially (or transversely) formed in the side wall of the powder spraying cavity at a position slightly higher than the outlet of the mouth part of the medicine containing cavity, the linear length of the through hole is equal to or smaller than the inner diameter of the powder spraying cavity, a movable sealing plate 20 is arranged in the through hole, and the sealing plate 20 is connected with a pull-type sealing plate 13 through a connecting piece. When the pull-type sealing plate seals the outlet of the nozzle part of the medicine containing cavity, the sealing plate is positioned in the strip-shaped through hole on the side wall of the powder spraying cavity to keep the powder spraying cavity smooth. When the sealing plate 13 is pulled out and the mouth of the powder containing cavity 12 is opened, the sealing plate 20 extends radially (radially of the powder spraying cavity) from the strip-shaped through hole 19 along with the pulling of the sealing plate 13, and the tube cavity of the powder spraying cavity 10 is sealed (completely or partially sealed, which is determined according to the linear length of the through hole and the width of the sealing plate) at a position slightly higher than the mouth of the powder containing cavity 12, so that a quantitative space (a space for loading powder in the powder spraying cavity) can be formed between the sealing plate and the metering adjusting block, and the powder is prevented from flowing into the tube cavity of the powder spraying cavity too much.
The working principle of the invention is as follows:
during powder spraying operation, the height of the spray rod 1 is adjusted according to the height of an operation target site, then a powdery medicament is placed in the medicament containing cavity 12 of the medicament bottle 6, and a cavity cover is covered; according to the powder spraying amount of one-time spraying, the adjusting screw cap 16 is rotated to push the core rod 17 to move, so that the position of the metering adjusting block 18 in the medicine spraying cavity is adjusted, then the pull-type sealing plate 13 is pulled out in a pulling mode, the mouth outlet of the medicine containing cavity 12 is opened to allow the medicine to flow into the medicine spraying cavity 10 (if the medicine has poor fluidity, the outer wall of the medicine bottle 6 can be slightly flapped), after the medicine stops flowing in, the pull-type sealing plate 13 is loosened, the pull-type sealing plate 13 returns under the action of the return spring, and the mouth outlet of the medicine containing cavity is sealed again; the blower 9 is started, the valve is arranged on the pressure guide pipe 8, the high-pressure gas is conveyed to the spraying cavity 10, the medicament in the spraying cavity 10 is sprayed to the operation target site after passing through the medicament guide pipe 5 and the sprayer 3 under the action of the high-pressure gas, one-time powder spraying operation is completed, and the purpose of spraying the powder quantitatively at fixed points is achieved.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (5)
1. A plant powder fixed point quantitative sprayer, which is characterized in that: the spray rod is arranged at the lower part of the spray rod, the spray head is arranged at the top of the spray rod, the lower end of the spray head is connected with a medicament guide pipe, the other end of the medicament guide pipe is connected with the medicament bottle, and the medicament bottle is also connected with a high-pressure gas conveying device through a pressure guide pipe;
the medicine bottle consists of a medicine containing cavity and a medicine spraying cavity, the medicine containing cavity and the medicine spraying cavity are arranged in the left-right direction, the medicine containing cavity is designed into a special-shaped funnel-shaped structure, the bottom of the medicine containing cavity inclines towards the medicine spraying cavity, a mouth part outlet is positioned in the medicine spraying cavity, and a vertical pull type sealing plate is arranged at the mouth part outlet; the spraying cavity is designed into a straight tube-shaped tube cavity structure, the upper port is connected with a medicament guide tube, a piston type metering adjusting block is arranged in the tube cavity at the lower part, the setting position of the metering adjusting block is lower than the position of the outlet of the nozzle part of the medicament containing cavity, the middle part of the metering adjusting block is sleeved with a powder spraying tube, one end of the powder spraying tube leads to the spraying cavity, the other end of the powder spraying tube is connected with a pressure guide tube, one end of the powder spraying tube leading to the spraying cavity is provided with a check valve, the lower end of the metering adjusting block is fixedly connected with a hollow core rod, the outer diameter of the core rod is slightly smaller than the outer diameter of the metering adjusting block or the inner diameter of the spraying cavity, and the core rod is provided with an external thread; the lower end of the pesticide spraying cavity is provided with a detachable support, the support is provided with an adjusting nut which can rotate randomly, the adjusting nut is positioned in the axial direction of the pesticide spraying cavity, and the internal thread of the adjusting nut is matched with the external thread of the core rod; a long-strip-shaped through hole is radially formed in the side wall of the medicine spraying cavity at a position slightly higher than the outlet of the nozzle part of the medicine containing cavity, the linear length of the through hole is equal to or smaller than the inner diameter of the medicine spraying cavity, a movable sealing plate is arranged in the through hole, and the sealing plate is connected with the pull-type sealing plate through a connecting piece; and a return spring is arranged on the pull type sealing plate.
2. The plant powder fixed-point quantitative sprayer according to claim 1, characterized in that: the spray rod is designed into a height-adjustable structure.
3. The plant powder fixed-point quantitative sprayer according to claim 1, characterized in that: the high-pressure gas conveying device is a blower or consists of a gas storage tank and a gas compressor.
4. The plant powder fixed-point quantitative sprayer according to claim 1, characterized in that: the central part of the metering adjusting block is concave inwards to form a funnel-shaped structure, and the outlet of the mouth part of the metering adjusting block is connected with the powder spraying pipe.
5. The plant powder fixed-point quantitative sprayer according to claim 1, characterized in that: and marking a volume value on the core rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910302387.9A CN109864058B (en) | 2019-04-16 | 2019-04-16 | Plant powder fixed-point quantitative sprayer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910302387.9A CN109864058B (en) | 2019-04-16 | 2019-04-16 | Plant powder fixed-point quantitative sprayer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109864058A CN109864058A (en) | 2019-06-11 |
| CN109864058B true CN109864058B (en) | 2021-10-08 |
Family
ID=66922631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910302387.9A Active CN109864058B (en) | 2019-04-16 | 2019-04-16 | Plant powder fixed-point quantitative sprayer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109864058B (en) |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2193026Y (en) * | 1994-05-18 | 1995-03-29 | 西北林学院 | Medicinal liquid spraying device for killing pest |
| CN2715858Y (en) * | 2004-08-17 | 2005-08-10 | 林九定 | Agricultural hand-held powder sprayer |
| BRPI0802374B1 (en) * | 2008-06-17 | 2017-03-21 | Guarany Indústria E Comércio Ltda | liquid dosing manual valve |
| JP2011217717A (en) * | 2010-04-07 | 2011-11-04 | Cgs:Kk | Granule applicator |
| CN103656811B (en) * | 2012-09-19 | 2015-06-17 | 上海理工大学 | Powder quantitative dosing device |
| JP6063833B2 (en) * | 2013-07-01 | 2017-01-18 | アース製薬株式会社 | Powder medicine injection device |
| CN203884524U (en) * | 2014-05-09 | 2014-10-22 | 新疆维吾尔自治区蜂业发展中心 | Mite-control powder sprayer |
| CN204742328U (en) * | 2015-07-17 | 2015-11-11 | 黔南州烟草公司福泉市分公司 | A conveniently press down bud agent and use shower nozzle for tobacco is planted |
| CN106719547A (en) * | 2016-12-13 | 2017-05-31 | 长兴创智科技有限公司 | A kind of plug-type powder pestsides synthesis flusher |
| CN206933118U (en) * | 2017-07-20 | 2018-01-30 | 刘昭明 | A kind of medicament injecting type Weeding tool |
| CN207927651U (en) * | 2018-03-02 | 2018-10-02 | 河南省新乡市农业科学院（新乡农业科技创新中心） | A kind of quantitative chemical spraying device |
| CN210094443U (en) * | 2019-04-16 | 2020-02-21 | 中国热带农业科学院椰子研究所 | Plant powder fixed-point quantitative sprayer |
-
2019
- 2019-04-16 CN CN201910302387.9A patent/CN109864058B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN109864058A (en) | 2019-06-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108031260A (en) | A kind of adjustable desulfurizing tower | |
| CN205902700U (en) | Energy -conserving sprinkler irrigation system | |
| CN113875580A (en) | A pollination device for fruit tree | |
| CN210094443U (en) | Plant powder fixed-point quantitative sprayer | |
| CN109864058B (en) | Plant powder fixed-point quantitative sprayer | |
| CN207639534U (en) | A kind of Job's tears plantation pesticide spraying device | |
| CN105211037A (en) | Vehicle-mounted chemical spraying device and pesticide spray truck | |
| CN209268469U (en) | A kind of banana ears pesticide spraying device | |
| CN108575393B (en) | Quantitative root irrigation device for preventing crop root rot | |
| CN209059531U (en) | A kind of automatic pesticide sprayer | |
| CN208676187U (en) | It is a kind of to exempt to put power spraye automatically | |
| CN206061948U (en) | A kind of electronic chemical spraying device of convenient stirring | |
| CN213152928U (en) | Accurate fertilization equipment of liquid manure integration | |
| CN210137666U (en) | Big-arch shelter water drive agricultural output increase irrigation atomizer | |
| CN209185224U (en) | A kind of multi-functional industrialized agriculture atomizing spray chemical spraying device | |
| CN210094258U (en) | Nursery stock maintenance of equipment | |
| CN207118438U (en) | A kind of corn pollination device | |
| CN217217943U (en) | Automatic pesticide applying device for preventing and treating corn diseases and insect pests | |
| CN205431722U (en) | Air -assisted pesticide spraying apparatus | |
| CN109168795A (en) | A kind of multi-functional industrialized agriculture atomizing spray chemical spraying device | |
| CN221381794U (en) | Agricultural spray set that spray angle can be adjusted | |
| CN217564433U (en) | A quantitative watering device for farming | |
| CN216254938U (en) | Automatic change dragon fruit device of spraying insecticide | |
| CN208807280U (en) | A kind of watering device of Chinese medicine plantation | |
| CN221468816U (en) | Pesticide spraying device for pest control |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |