CN220915937U - Vegetable seedling cabinet - Google Patents

Vegetable seedling cabinet Download PDF

Info

Publication number
CN220915937U
CN220915937U CN202322695253.2U CN202322695253U CN220915937U CN 220915937 U CN220915937 U CN 220915937U CN 202322695253 U CN202322695253 U CN 202322695253U CN 220915937 U CN220915937 U CN 220915937U
Authority
CN
China
Prior art keywords
fixedly connected
seedling raising
gear
connecting rod
seedling
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
Application number
CN202322695253.2U
Other languages
Chinese (zh)
Inventor
龙小平
廖和平
袁美玲
刘志强
范军莲
郭悦
康卫平
邓勇
胡耀华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN202322695253.2U priority Critical patent/CN220915937U/en
Application granted granted Critical
Publication of CN220915937U publication Critical patent/CN220915937U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)

Abstract

The utility model discloses a vegetable seedling raising cabinet, which comprises a seedling raising cabinet main body, wherein the lower end of the seedling raising cabinet main body is fixedly connected with a pulley, the upper end of the seedling raising cabinet main body is fixedly connected with a heating part, the right side of the seedling raising cabinet main body is fixedly connected with a placing cylinder, the upper end of the placing cylinder is provided with a servo motor, and the stirring structure is arranged on the seedling raising cabinet, so that water and nutrient solution can be stirred in advance and uniformly distributed when being sprayed, the water and the nutrient solution can be fully mixed and uniformly distributed, the effect of the unevenly distributed water and nutrient solution on seedling raising can be effectively avoided, the seedling raising effect can be indirectly improved, the seedling can be sprayed while the stirring is continuously carried out, the water and the nutrient solution after the stirring is prevented from precipitating, and the water and the nutrient solution are always in a fully and uniformly mixed state when the stirring is carried out, so that the water and the nutrient solution can play a good role.

Description

Vegetable seedling cabinet
Technical Field
The utility model relates to the technical field of seedling raising cabinets, in particular to a vegetable seedling raising cabinet.
Background
Seedling raising means the cultivation of seedlings. The original meaning is to cultivate seedlings in a nursery, a hotbed or a greenhouse for transplanting into the soil for planting, and the stage that various organisms are protected manually until the organisms can survive independently can be referred to as 'seedling strengthening and half harvesting', and the seedling raising is labor-intensive, time-consuming and high-technical work, and the seedlings are required to be planted when vegetables are planted, and related seedling raising equipment is also required.
In the use process of the existing seedling raising equipment, the utilization rate of the nutrient solution is not high, the nutrient solution is wasted, and the distance between the cultivation baskets can not be adjusted according to the size of the cultivated vegetable seedlings.
In order to solve the problems, the prior patent (publication number: CN 217038144U) discloses a vegetable seedling raising cabinet, which is characterized in that a pump, a guide plate and a filter screen are arranged, nutrient solution in a culture bin is input into a fixed pipe through the pump, sprayed out through a spray head, seedlings are sprayed in a culture basket, redundant nutrient solution falls onto the guide plate through a leak hole, and flows back to the inside of a nutrient solution bin through the filtration of the filter screen, so that the nutrient solution is prevented from being wasted, and the filter frame is driven to move by pulling the pull plate, so that the filter frame is taken out conveniently, and the filter screen is cleaned conveniently.
But the seedling raising cabinet in the publication can not stir the nutrient solution before irrigating the nutrient solution in the use process, and the uneven mixing of nutrient substances in the nutrient solution easily appears, and the nutrient solution is sprayed on the seedling, and partial seedling nutrition deficiency easily appears, and another partial seedling nutrition excess can cause the condition that the seedling grows slowly or the seedling dies, and the growth of the seedling can be influenced by the above, so that the seedling raising effect and the seedling raising efficiency of the seedling raising cabinet are indirectly reduced.
In view of the above-mentioned shortcomings, the utility model provides a vegetable seedling raising cabinet based on the improvement and optimization of the existing vegetable seedling raising cabinet.
Disclosure of Invention
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a vegetable seedling cabinet, includes the cabinet main part of growing seedlings, the lower extreme fixedly connected with pulley of cabinet main part of growing seedlings, the upper end fixedly connected with heating member of cabinet main part of growing seedlings, the right side fixedly connected with of cabinet main part of growing seedlings places a section of thick bamboo, the upper end of placing a section of thick bamboo is provided with servo motor, the upper end fixedly connected with of placing a section of thick bamboo puts in the mouth, be provided with rabbling mechanism in the cabinet main part of growing seedlings, rabbling mechanism is used for stirring the nutrient solution.
Preferably, the rabbling mechanism is including placing dish, connecting rod, rotation post, first gear, bracing piece, second gear, first ring, second ring, first scraper blade, second scraper blade, rack, first connecting strip, second connecting strip and third connecting strip, servo motor's output shaft runs through and places a section of thick bamboo and fixedly connected with bracing piece, the lower extreme of a section of thick bamboo is placed in the lower extreme rotation connection of bracing piece, the outer wall of bracing piece is fixedly connected with one end of first connecting strip, second connecting strip and third connecting strip respectively, and arrange downwards from last, the other end fixedly connected with second gear of first connecting strip, the other end fixedly connected with first ring of second connecting strip, the upper end fixedly connected with rack of first ring, the other end fixedly connected with second ring of third connecting strip, the outer wall fixedly connected with second scraper blade of third connecting strip, the lower extreme fixedly connected with first scraper blade of second ring, the lower extreme inner wall rotation connection of cabinet main part has rotation post, the upper end fixedly connected with second gear of rotation, the upper end fixedly connected with second gear of second connecting strip, the first gear of placing the upper end of first connecting strip, the first gear of first connecting strip is connected with the first gear of placing.
Preferably, the racks are arranged in a plurality and are arranged on the upper surface of the first circular ring in a circular distribution.
Preferably, the first scraping plate and the second scraping plate are the same in height and are in contact with the ground on which the cylinder is placed.
Preferably, the seedling raising cabinet main body and the placing cylinder are penetrated with a storage pipe, the outer wall of the storage pipe is fixedly connected with one end of the guide pipe, the other end of the guide pipe penetrates into the placing cylinder, the front end of the storage pipe is provided with a nozzle, and the storage pipe is internally provided with a moving mechanism used for transporting nutrient solution.
Preferably, the moving mechanism comprises a third gear, an embedded column, a driving column, a wave circular groove, a sliding block, a connecting frame and a piston plate, wherein the piston plate is slidably connected to the inner wall of the storage tube, the connecting frame is fixedly connected to the rear end of the piston plate, the sliding block is fixedly connected to the connecting frame, the embedded column penetrates through the rear end of the storage tube, the driving column is fixedly connected to the front end of the embedded column, the wave circular groove is formed in the driving column, the wave circular groove is matched with the sliding block, the third gear is fixedly connected to the rear end of the embedded column, and the third gear is matched with the rack.
Preferably, the nozzle and the flow guide pipe are both provided with one-way valves.
Preferably, an insulation layer is arranged in the inner wall of the seedling raising cabinet main body.
Compared with the prior art, the utility model has the beneficial effects that:
1. By arranging the stirring mechanism on the seedling raising cabinet, when water and nutrient solution are sprayed, the water and the nutrient solution can be stirred in advance, so that the water and the nutrient solution are fully mixed and uniformly distributed, the influence of the unevenly distributed water and nutrient solution on the seedling raising effect can be effectively avoided, and the seedling raising effect is indirectly improved;
2. Through set up the structure of spraying on the cabinet of growing seedlings, can spray the work to the seedling in the stirring of incessantly, avoid stopping water and the nutrient solution after the stirring to appear precipitating, water and the nutrient solution are in abundant evenly mixed's state always when spraying, make water and nutrient solution can play fine effect.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is an overall structural view of the present utility model;
FIG. 2 is a cross-sectional view of the overall structure of the present utility model;
FIG. 3 is an enlarged view of FIG. 2A in accordance with the present utility model;
FIG. 4 is a view of the stirring mechanism of the present utility model;
Fig. 5 is a cross-sectional view of the storage tube structure of the present utility model.
Reference numerals illustrate:
1. A seedling cabinet main body; 3. a pulley; 4. a heating member; 5. placing a cylinder; 6. a servo motor; 7. a delivery port; 8. placing a tray; 9. a connecting rod; 10. a spout; 11. rotating the column; 12. a first gear; 13. a storage tube; 14. a flow guiding pipe; 15. a support rod; 16. a second gear; 17. a first ring; 18. a second ring; 19. a first scraper; 20. a second scraper; 21. a third gear; 22. a rack; 23. a first connecting bar; 24. a second connecting bar; 25. a third connecting bar; 29. embedding the column; 30. driving the column; 31. wave round groove; 32. a slide block; 33. a connecting frame; 34. a piston plate.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1 to 5, the present utility model provides a technical solution:
The vegetable seedling raising cabinet comprises a seedling raising cabinet main body 1, wherein a pulley 3 is fixedly connected to the lower end of the seedling raising cabinet main body 1, a heating element 4 is fixedly connected to the upper end of the seedling raising cabinet main body 1, a placing cylinder 5 is fixedly connected to the right side of the seedling raising cabinet main body 1, a servo motor 6 is arranged at the upper end of the placing cylinder 5, a throwing opening 7 is fixedly connected to the upper end of the placing cylinder 5, and a stirring mechanism is arranged on the seedling raising cabinet main body 1 and used for stirring nutrient solution;
The stirring mechanism comprises a placing disc 8, a connecting rod 9, a rotating column 11, a first gear 12, a supporting rod 15, a second gear 16, a first circular ring 17, a second circular ring 18, a first scraping plate 19, a second scraping plate 20, a rack 22, a first connecting bar 23, a second connecting bar 24 and a third connecting bar 25, wherein an output shaft of a servo motor 6 penetrates through the placing cylinder 5 and is fixedly connected with the supporting rod 15, the lower end of the supporting rod 15 is rotationally connected with the lower end of the placing cylinder 5, the outer walls of the supporting rod 15 are respectively and fixedly connected with one ends of the first connecting bar 23, the second connecting bar 24 and the third connecting bar 25, and are downwards arranged, the other end of the first connecting bar 23 is fixedly connected with the second gear 16, the other end of the second connecting bar 24 is fixedly connected with the first circular ring 17, the upper end of the first circular ring 17 is fixedly connected with the rack 22, the other end of the third connecting bar 25 is fixedly connected with the second circular ring 18, the outer wall of the third connecting bar 25 is fixedly connected with the second scraping plate 20, the lower end of the second circular ring 18 is fixedly connected with the first scraping plate 19, the lower end of the rotating cabinet body 1 is fixedly connected with the rotating column 11, the upper end of the rotating column 11 is fixedly connected with the rotating disc 9, and the upper end of the rotating disc is fixedly connected with the upper gear 9 is fixedly connected with the upper end of the connecting rod 12;
The racks 22 are arranged on the upper surface of the first circular ring 17 and distributed circularly;
The first blade 19 and the second blade 20 have the same height and are in contact with the ground on which the drum 5 is placed.
Through adopting above-mentioned technical scheme, when needs are sprayed the seedling in the cabinet main part 1 of growing seedlings, can be at first pouring water and nutrient solution into place in the section of thick bamboo 5 through throwing in mouthful 7, in order to avoid water and nutrient solution to deposit in placing the section of thick bamboo 5 and pile up, can stir it in advance, at first let servo motor 6 start working, can drive bracing piece 15 on the one hand when servo motor 6 starts working and start rotating, when bracing piece 15 takes place to rotate, can drive second gear 16 and start rotating, thereby drive first gear 12 and take place to rotate, along with first gear 12 rotates, can drive placing tray 8 through connecting rod 9 and start rotating, seedling on placing tray 8 starts rotating, heating member 4 just can evenly shine it, avoid long-time motionless shining to cause the seedling damage, on the other hand can drive second ring 18 and start rotating, along with second ring 18 takes place to rotate, just can drive the first scraper 19 of connection in its below and second scraper 20 start rotating, at this moment first scraper 19 and second scraper 20 just can stir and scrape the bottom of placing the section of thick bamboo 5, can make the bottom and precipitate the effect that can be more fully mixed in the seedling, can make the effect of the seedling and the nutrient solution fully mix.
Specifically, as shown in fig. 1 to 2 and fig. 3 to 4, a storage tube 13 is penetrated through the seedling raising cabinet main body 1 and the placement barrel 5, the outer wall of the storage tube 13 is fixedly connected with one end of a guide tube 14, the other end of the guide tube 14 penetrates through the placement barrel 5, a nozzle 10 is arranged at the front end of the storage tube 13, and a moving mechanism is arranged in the storage tube 13 and used for transporting nutrient solution;
The moving mechanism comprises a third gear 21, an embedded column 29, a driving column 30, a wave circular groove 31, a sliding block 32, a connecting frame 33 and a piston plate 34, wherein the inner wall of the storage tube 13 is connected with the piston plate 34 in a sliding manner, the rear end of the piston plate 34 is fixedly connected with the connecting frame 33, the connecting frame 33 is fixedly connected with the sliding block 32, the rear end of the storage tube 13 penetrates through the embedded column 29, the front end of the embedded column 29 is fixedly connected with the driving column 30, the driving column 30 is provided with the wave circular groove 31, the wave circular groove 31 is matched with the sliding block 32, the rear end of the embedded column 29 is fixedly connected with the third gear 21, and the third gear 21 is matched with the rack 22;
the nozzle 10 and the flow guide pipe 14 are provided with one-way valves.
By adopting the technical scheme, the device can also spray nutrient solution indirectly to seedlings, the supporting rod 15 can drive the first circular ring 17 to start rotating, the third gear 21 can be pushed to rotate through the rack 22 along with the rotation of the first circular ring 17, the third gear 21 can drive the column 30 to rotate through the embedded column 29, the wave circular groove 31 can also rotate, the sliding block 32 can start moving along the wave circular groove 31, the movable plug plate 34 is driven to move through the connecting frame 33, the piston plate 34 moves back and forth in the storage tube 13, the check valve in the nozzle 10 only does not enter, the check valve in the guide tube 14 only does not enter, so that when the piston plate 34 moves, the generated pressure difference can suck water and nutrient solution into the storage tube 13 through the guide tube 14, then the water and nutrient solution can be sprayed out of the storage tube 13 through the nozzle 10 to act on seedlings, at the moment, the seedlings can be uniformly sprayed through the continuous rotation, and the seedling raising effect of the seedling raising cabinet can be realized.
Specifically, as shown in fig. 1, an insulation layer is provided in the inner wall of the seedling raising cabinet body 1.
By adopting the technical scheme, the heat preservation layer can ensure that the temperature inside the seedling cabinet main body 1 does not run off outwards rapidly, and is more beneficial to the growth of seedlings.
Working principle: when the seedlings in the seedling raising cabinet main body 1 need to be sprayed, water and nutrient solution can be poured into the placing barrel 5 through the pouring opening 7, the water and the nutrient solution can be stirred in advance to avoid deposition and accumulation in the placing barrel 5, the servo motor 6 starts to work and drives the supporting rod 15 to start rotating on one hand, when the supporting rod 15 rotates, the second gear 16 is driven to start rotating, the first gear 12 is driven to rotate, the placing tray 8 can be driven to start rotating through the connecting rod 9 along with the rotation of the first gear 12, the seedlings on the placing tray 8 start rotating, the heating element 4 can uniformly irradiate the seedlings to avoid seedling damage caused by long-time motionless irradiation, the second ring 18 is driven to start rotating along with the rotation of the second ring 18, the first scraping plate 19 and the second scraping plate 20 which are connected below the first scraping plate 19 and the second scraping plate 20 can be driven to start rotating, at the moment, the first scraping plate 19 and the second scraping plate 20 can stir and scrape the bottom of the placing cylinder 5, substances deposited at the bottom can float, water and nutrient solution can be fully and uniformly mixed, the effect on seedlings is more obvious, when the supporting rod 15 rotates, the first circular ring 17 is driven to start rotating, the third gear 21 can be driven to rotate by the rack 22 along with the rotation of the first circular ring 17, the third gear 21 can drive the driving column 30 to rotate by the embedded column 29, under the action of the wave circular groove 31, when the driving column 30 continuously rotates, the piston plate 34 can be driven to move back and forth in the storage tube 13, when the piston plate 34 moves, the generated pressure difference can suck the water and the nutrient solution into the storage tube 13 through the guide tube 14, then the seedlings can be sprayed out through the nozzles 10 to act on the seedlings, and the seedlings can be uniformly sprayed by continuously rotating, so that the seedling raising effect of the seedling raising cabinet is improved.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims (8)

1. The utility model provides a vegetable seedling cabinet, includes seedling cabinet main part (1), its characterized in that: the utility model discloses a seedling raising cabinet, including seedling raising cabinet main part (1), right side, upper end fixedly connected with pulley (3) of seedling raising cabinet main part (1), right side fixedly connected with of seedling raising cabinet main part (1) places a section of thick bamboo (5), the upper end of placing a section of thick bamboo (5) is provided with servo motor (6), the upper end fixedly connected with of placing a section of thick bamboo (5) puts in mouth (7), be provided with rabbling mechanism on seedling raising cabinet main part (1), rabbling mechanism is used for stirring the nutrient solution.
2. A vegetable seedling growing cabinet according to claim 1, wherein: the stirring mechanism comprises a placing disc (8), a connecting rod (9), a rotating column (11), a first gear (12), a supporting rod (15), a second gear (16), a first circular ring (17), a second circular ring (18), a first scraping plate (19), a second scraping plate (20), a rack (22), a first connecting rod (23), a second connecting rod (24) and a third connecting rod (25), an output shaft of the servo motor (6) penetrates through the placing cylinder (5) and is fixedly connected with the supporting rod (15), the lower end of the supporting rod (15) is rotationally connected with the lower end of the placing cylinder (5), the outer walls of the supporting rod (15) are respectively fixedly connected with one ends of the first connecting rod (23), the second connecting rod (24) and the third connecting rod (25), the other ends of the first connecting rod (23) are fixedly connected with the second gear (16), the other ends of the second connecting rod (24) are fixedly connected with the first circular ring (17), the upper end of the first circular ring (17) is fixedly connected with the second scraping plate (25), the other ends of the third connecting rod (25) are fixedly connected with the second circular ring (18), the seedling raising cabinet is characterized in that a rotating column (11) is rotatably connected to the inner wall of the lower end of the seedling raising cabinet body (1), a placing disc (8) is fixedly connected to the upper end of the rotating column (11), a connecting rod (9) is fixedly connected to the upper end of the placing disc (8), a first gear (12) is fixedly connected to the upper end of the connecting rod (9), and the first gear (12) is meshed with a second gear (16).
3. A vegetable seedling growing cabinet according to claim 2, characterized in that: the racks (22) are arranged in a plurality and are arranged on the upper surface of the first circular ring (17) in a circular distribution.
4. A vegetable seedling growing cabinet according to claim 2, characterized in that: the first scraping plate (19) and the second scraping plate (20) are the same in height and are in contact with the ground of the placement barrel (5).
5. A vegetable seedling growing cabinet according to claim 2, characterized in that: the seedling raising cabinet comprises a seedling raising cabinet body (1) and a storage tube (13) which is penetrated through a storage tube (5), wherein one end of a guide tube (14) is fixedly connected with the outer wall of the storage tube (13), the other end of the guide tube (14) penetrates through the storage tube (5), a nozzle (10) is formed in the front end of the storage tube (13), and a moving mechanism is arranged in the storage tube (13) and used for transporting nutrient solution.
6. A vegetable seedling growing cabinet according to claim 5, wherein: the moving mechanism comprises a third gear (21), an embedded column (29), a driving column (30), a wave round groove (31), a sliding block (32), a connecting frame (33) and a piston plate (34), wherein the inner wall of the storage tube (13) is slidably connected with the piston plate (34), the connecting frame (33) is fixedly connected with the rear end of the piston plate (34), the sliding block (32) is fixedly connected to the connecting frame (33), the embedded column (29) penetrates through the rear end of the storage tube (13), the driving column (30) is fixedly connected with the front end of the embedded column (29), the wave round groove (31) is formed in the driving column (30), the wave round groove (31) is matched with the sliding block (32), the third gear (21) is fixedly connected with the rear end of the embedded column (29), and the third gear (21) is matched with the rack (22).
7. A vegetable seedling growing cabinet according to claim 5, wherein: and the nozzle (10) and the flow guide pipe (14) are respectively provided with a one-way valve.
8. A vegetable seedling growing cabinet according to claim 6, wherein: an insulation layer is arranged in the inner wall of the seedling cabinet main body (1).
CN202322695253.2U 2023-10-09 2023-10-09 Vegetable seedling cabinet Active CN220915937U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202322695253.2U CN220915937U (en) 2023-10-09 2023-10-09 Vegetable seedling cabinet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202322695253.2U CN220915937U (en) 2023-10-09 2023-10-09 Vegetable seedling cabinet

Publications (1)

Publication Number Publication Date
CN220915937U true CN220915937U (en) 2024-05-10

Family

ID=90941019

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202322695253.2U Active CN220915937U (en) 2023-10-09 2023-10-09 Vegetable seedling cabinet

Country Status (1)

Country Link
CN (1) CN220915937U (en)

Similar Documents

Publication Publication Date Title
JP5625202B2 (en) Plant cultivation system
CN110476659B (en) Automatic seeding and filling production line for nutrition pots
CN215774512U (en) High survival rate tomato greenhouse soil cultivation device of growing seedlings
CN213755970U (en) Potato is planted with novel device of growing seedlings
CN220915937U (en) Vegetable seedling cabinet
CN114097490A (en) Forestry engineering seedling culture device and method
CN115399174B (en) Seed cultivation equipment capable of controlling planting depth
CN215122082U (en) Camellia oleifera planting is with device of growing seedlings
CN214338897U (en) A culture apparatus that grows seedlings for agricultural field
CN212876909U (en) Seedling cultivation box for forestry
CN212087296U (en) Environment-friendly seedling culture device for landscaping
CN216452212U (en) Seed incubator
CN219478702U (en) Constant temperature preservation box for breeding
CN216415487U (en) Intelligence nutrient solution conveying system for vegetable planting
CN219087940U (en) Vegetable seedling raising device
CN217428788U (en) Agricultural is experimental with crop device of growing seedlings
CN220799106U (en) Potato detoxification seedling tissue culture frame convenient to irrigate
CN216087949U (en) Novel maize cultivation is grown seedlings device
CN212876883U (en) Transplanting device for fruit and vegetable planting
CN216853170U (en) Standardized planting structure of three-dimensional watering vegetables
CN214546783U (en) Farmland big-arch shelter fruit growing is with spouting medicine deinsectization device
CN218789103U (en) Novel greenhouse seedling culture device
CN219577927U (en) Seedling raising equipment for corn planting
CN214070818U (en) Domestic planting frame
CN215011960U (en) Water-saving irrigation device for watermelon cultivation

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant