CN112806197A - Automatic ventilation device for modern agricultural greenhouse - Google Patents
Automatic ventilation device for modern agricultural greenhouse Download PDFInfo
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- CN112806197A CN112806197A CN202110206984.9A CN202110206984A CN112806197A CN 112806197 A CN112806197 A CN 112806197A CN 202110206984 A CN202110206984 A CN 202110206984A CN 112806197 A CN112806197 A CN 112806197A
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- 238000009423 ventilation Methods 0.000 title claims abstract description 47
- 241000283984 Rodentia Species 0.000 claims abstract description 15
- 239000000696 magnetic material Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 2
- 235000013311 vegetables Nutrition 0.000 description 8
- 230000009471 action Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000005457 optimization Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000002337 anti-port Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000002354 daily effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/24—Devices or systems for heating, ventilating, regulating temperature, illuminating, or watering, in greenhouses, forcing-frames, or the like
- A01G9/241—Arrangement of opening or closing systems for windows and ventilation panels
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Ventilation (AREA)
Abstract
The invention provides an automatic ventilation device for a modern agricultural greenhouse, which comprises a greenhouse body, wherein a controller is fixedly installed at the top of the left side of the greenhouse body, a slide bar is fixedly installed at the top of an inner cavity of the greenhouse body, slide blocks are movably installed on the left side and the right side of the slide bar, an exhaust fan is fixedly installed at the bottom of each slide block, and a driver is fixedly installed on the right side of the inner cavity of each slide bar. This an automatic ventilation device for modernization green house, through setting up mechanical axis and slider, when the canopy body need take a breath the ventilation with the external world, the controller starts, make mechanical axis and automatically controlled axle circular telegram work, automatically controlled axle drives the air discharge fan and rotates, the chain area and the slider rodent two of mechanical axis surface simultaneously, make mechanical axis rotation drive slider at slide bar surface horizontal slip, and the slider removes and not only drives the air discharge fan and removes and the cooperation silk thread makes the air discharge window open, when reaching the ventilation with this, utilize the air discharge fan to accelerate the internal portion of canopy and external circulation of air.
Description
Technical Field
The invention relates to the technical field of agriculture, in particular to an automatic ventilation device for a modern agricultural greenhouse.
Background
In modern society, with the continuous improvement of science and technology and the continuous improvement of the living standard of the public, various things which are difficult to handle in daily life can be made almost at present, for example, vegetables in summer are eaten in winter, especially, transportation in modern society is very convenient, and a plurality of people can intelligently manufacture various agricultural greenhouses by utilizing modern science and technology to cultivate out-of-season vegetables of different varieties and increase the income of the people by transporting the vegetables to various places for sale.
In the process of cultivating vegetables by using the agricultural greenhouse, the vegetables are planted out of season, the growing environments required by the vegetables are different greatly, such as sunlight, moisture, air and the like, particularly in winter, many agricultural greenhouses can ventilate regularly every day in order to improve the yield of the vegetables, the gas in the greenhouse is convenient to replace, the carbon dioxide concentration in the greenhouse is prevented from being too high, most of the agricultural greenhouses ventilate by installing ventilation openings on two sides of the greenhouse, but the ventilation mode is too slow, and because the agricultural greenhouses are not firm in installation, the ventilation openings are opened in case of sudden weather such as rain and snow, and the like, and the vegetables near the ventilation openings are easily damaged.
Therefore, it is urgently needed to provide an automatic ventilation device for a modern agricultural greenhouse, which is convenient for accelerating air flow in a ventilation period and automatically fixing a ventilation opening when the air is out of the air.
Disclosure of Invention
In order to solve the technical problems, the invention provides an automatic ventilation device for a modern agricultural greenhouse, which is achieved by the following specific technical means:
an automatic ventilation device for a modern agricultural greenhouse comprises a greenhouse body, wherein a controller is fixedly mounted at the left top of the greenhouse body, a slide rod is fixedly mounted at the top of an inner cavity of the greenhouse body, slide blocks are movably mounted on the left side and the right side of the slide rod, an exhaust fan is fixedly mounted at the bottom of each slide block, a driver is fixedly mounted at the right side of the inner cavity of the slide rod, a mechanical shaft is fixedly mounted at the top of the inner cavity of the greenhouse body, ventilating frames are fixedly mounted on the left side and the right side of the top of the greenhouse body, rotating shafts are fixedly mounted on the left side and the right side of each ventilating frame, silk threads are fixedly connected to the tops of the slide blocks, an exhaust window is fixedly mounted on the right side of each rotating shaft, a bar-shaped block is fixedly mounted in the middle of the top of each, the shrinkage pool has all been seted up to the left and right sides of bar shape inner chamber bottom, the left side fixed mounting of shrinkage pool bottom has the gag lever post, spacing hole has been seted up at the middle part at ventilation frame top, the bar hole has been seted up in the left side at exhaust window top, the end of bar hole inner chamber.
As optimization, the upper side and the lower side of the inner cavity of the sliding rod are fixedly provided with a first engaging tooth, the middle of the inner cavity of the sliding block is fixedly provided with a rotating wheel, and the outer surface of the rotating wheel is matched with the first engaging tooth in shape, so that the rotating wheel is movably connected with the first engaging tooth, and the sliding block slides on the outer surface of the sliding rod.
Preferably, a second engaging tooth is fixedly installed at the bottom of the sliding block, a chain belt is movably installed on the outer surface of the mechanical shaft, and the shape and the size of the second engaging tooth are matched with those of the outer surface of the chain belt, so that the chain belt rotates under the control of the mechanical shaft, and the chain belt drives the sliding block to move left and right through the shape matching with the second engaging tooth.
Preferably, the middle part of the exhaust fan is fixedly provided with an electric control shaft, the controller is electrically connected with the electromagnet, the mechanical shaft and the electric control shaft through electric wires, so that the controller is started, the electric control shaft is electrified and started to drive the exhaust fan to rotate, the mechanical shaft rotates along with the electric control shaft to drive the chain belt to rotate, and meanwhile, the electromagnet is electrified to exchange the upper magnetic pole and the lower magnetic pole of the electromagnet.
As optimization, the shape and size of the limiting block are matched with those of the concave hole, the limiting block is made of a magnetic material component, the top magnetic pole of the limiting block is the same as the bottom magnetic pole of the electromagnet after being electrified, and therefore the limiting block moves downwards from the concave hole under the action of homopolar repulsion after the electromagnet is electrified.
Preferably, the sliding block is fixedly connected with the rotating shaft through a silk thread, so that when the sliding block slides on the sliding rod, the rotating shaft is driven to rotate through the silk thread, the rotating shaft drives the exhaust window to be opened, and accordingly air inside the shed body can conveniently circulate with outside air.
As optimization, the shape and the size of the left and the right combined exhaust windows are matched with those of the ventilation frame, so that the exhaust windows are opened and closed to control the air circulation in the shed body.
The invention has the following beneficial effects:
1. this an automatic ventilation device for modernization green house, through setting up mechanical axis and slider, when the canopy body need take a breath the ventilation with the external world, the controller starts, make mechanical axis and automatically controlled axle circular telegram work, automatically controlled axle drives the air discharge fan and rotates, the chain area and the slider rodent two of mechanical axis surface simultaneously, make mechanical axis rotation drive slider at slide bar surface horizontal slip, and the slider removes and not only drives the air discharge fan and removes and the cooperation silk thread makes the air discharge window open, when reaching the ventilation with this, utilize the air discharge fan to accelerate the internal portion of canopy and external circulation of air.
2. This an automatic ventilation device for modernized green house, through setting up stopper and shrinkage pool, when utilizing the electro-magnet outage, the electro-magnet is opposite with the magnetic pole at stopper top for when the canopy body does not need the ventilation, the stopper upwards moves to spacing downthehole under the effect of the attraction power that opposite sex inhales the production mutually, and under the effect of the gag lever post of spacing downthehole portion, fixed mounting is spacing downthehole, with this reach and prevent the exhaust window when not needing the ventilation, because external reason, open the pivoted effect automatically.
Drawings
Fig. 1 is a front sectional view of the overall structure of the present invention.
Fig. 2 is a top view of the mechanical shaft structure of the present invention.
FIG. 3 is a schematic view of the structure at A of FIG. 1 according to the present invention.
FIG. 4 is a schematic structural diagram of FIG. 2 at B according to the present invention.
In the figure: 1. a shed body; 2. a controller; 3. a slide bar; 4. a slider; 5. an exhaust fan; 6. a driver; 7. a mechanical shaft; 8. a ventilation frame; 9. a rotating shaft; 10. a silk thread; 11. an exhaust window; 12. a bar-shaped block; 13. an electric wire; 14. an electromagnet; 15. concave holes; 16. a limiting rod; 17. a limiting hole; 18. a strip-shaped hole; 19. a telescopic rod; 20. a limiting block; 301. a first rodent; 401. a rotating wheel; 402. a second rodent; 501. an electric control shaft; 701. a chain belt.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, an automatic ventilation device for a modern agricultural greenhouse comprises a greenhouse body 1, a controller 2 is fixedly installed at the top of the left side of the greenhouse body 1, a slide bar 3 is fixedly installed at the top of the inner cavity of the greenhouse body 1, slide blocks 4 are movably installed at the left side and the right side of the slide bar 3, an exhaust fan 5 is fixedly installed at the bottom of the slide block 4, a driver 6 is fixedly installed at the right side of the inner cavity of the slide bar 3, a mechanical shaft 7 is fixedly installed at the top of the inner cavity of the greenhouse body 1, ventilation frames 8 are fixedly installed at the left side and the right side of the top of the greenhouse body 1, rotating shafts 9 are fixedly installed at the left side and the right side of the ventilation frames 8, silk threads 10 are fixedly connected to the top of the slide blocks 4, an exhaust window 11 is fixedly installed at the right side of the rotating shafts 9, a bar-shaped block 12, shrinkage pool 15 has all been seted up to the left and right sides of 12 inner chambers of bar piece, and the left side fixed mounting of shrinkage pool 15 bottom has gag lever post 16, and spacing hole 17 has been seted up at the middle part at 8 tops of ventilation frame, and bar hole 18, the end of the 18 inner chambers in bar hole 18 have been seted up in the left side at 11 tops of air discharge window.
Wherein, the equal fixed mounting in upper and lower both sides of slide bar 3 inner chamber has a rodent 301, and the middle part fixed mounting in the inner chamber of slider 4 has runner 401, and the shape of runner 401 surface matches with the shape of rodent 301 to runner 401 and rodent 301 swing joint make slider 4 slide at the slide bar 3 surface.
The bottom of the sliding block 4 is fixedly provided with a second rodent 402, the outer surface of the mechanical shaft 7 is movably provided with a chain belt 701, the shape and the size of the second rodent 402 are matched with those of the outer surface of the chain belt 701, so that the chain belt 701 rotates under the control of the mechanical shaft 7, and the chain belt 701 drives the sliding block 4 to move left and right through the shape matching with the second rodent 402.
Wherein, the middle part fixed mounting of air discharge fan 5 has automatically controlled axle 501, and controller 2 passes through electric wire 13 and electro-magnet 14, mechanical axis 7 and automatically controlled axle 501 electric connection to controller 2 starts, and automatically controlled axle 501 circular telegram starts, drives air discharge fan 5 and rotates, and mechanical axis 7 also rotates thereupon, drives chain area 701 and rotates, and electro-magnet 14 circular telegram simultaneously makes the upper and lower interchange magnetic pole of electro-magnet 14.
The shape and size of the limiting block 20 are matched with the shape and size of the concave hole 15, the limiting block 20 is made of a magnetic material component, and the top magnetic pole of the limiting block 20 is the same as the bottom magnetic pole of the electromagnet 14 after being electrified, so that the limiting block 20 moves downwards from the concave hole 15 under the action of homopolar repulsion after the electromagnet 14 is electrified.
The sliding block 4 is fixedly connected with the rotating shaft 9 through the silk thread 10, so that when the sliding block 4 slides on the sliding rod 3, the rotating shaft 9 is driven to rotate through the silk thread 10, the rotating shaft 9 drives the exhaust window 11 to be opened, and accordingly the circulation of air inside the shed body 1 and outside air is facilitated.
The shape of the left and right combined exhaust window 11 is smaller than the shape and size of the ventilation frame 8, so that the exhaust window 11 is opened and closed to control the air circulation in the shed body 1.
When the device is used, whether the functions of the structures of the device are normal is firstly checked, when the air in the greenhouse body 1 does not need ventilation, the shape and the size of the limit block 20 are matched with the shape and the size of the concave hole 15, the material of the limit block 20 is a magnetic material component, and the top magnetic pole of the limit block 20 is opposite to the bottom magnetic pole when the electromagnet 14 is not electrified, so that under the normal state, the limit block 20 moves upwards into the limit hole 17 under the action of attraction force generated by opposite attraction, is fixedly arranged in the limit hole 17 under the action of the limit rod 16 at the bottom of the limit hole 17, passes through the limit hole 17 through the telescopic rod 19, and achieves the effect of preventing the exhaust window 11 from automatically opening and rotating due to external reasons when the ventilation is not needed, after a period of time, the greenhouse body 1 needs ventilation so that plants in the greenhouse body 1 stably grow, at the moment, the controller 2 is started, because the controller 2 is electrically connected with the electromagnet 14, the mechanical shaft 7 and the electric control shaft 501 through the electric wire 13, the controller 2 is started, the electromagnet 14 is electrified, the upper magnetic pole and the lower magnetic pole of the electromagnet 14 are interchanged, the magnetic pole of the electromagnet 14 is the same as that of the opposite side of the limiting block 20, so that the limiting block 20 moves downwards under the action of repulsion force, the limiting block 20 is separated from the concave hole 15, the exhaust window 11 is not fixed with the ventilation frame 8, meanwhile, the controller 2 controls the electric control shaft 501 to be electrified and started to drive the exhaust fan 5 to rotate, the mechanical shaft 7 is started to rotate to drive the chain belt 701 to rotate, the bottom of the sliding block 4 is fixedly provided with the second tooth 402, the outer surface of the mechanical shaft 7 is movably provided with the chain belt 701, the shape and the size of the second tooth 402 are matched with the shape, through the shape matching with two 402 of rodent, make the chain area 701 drive slider 4 and remove about, again because slider 4 passes through silk thread 10 and rotation axis 9 fixed connection, thereby slider 4 when sliding on slide bar 3, drive rotation axis 9 through silk thread 10 and rotate, make rotation axis 9 drive exhaust window 11 open, when slider 4 removed to slide bar 3's right side, the right side fixed mounting who utilizes the slide bar 3 inner chamber has driver 6, so collision trigger driver 6 when slider 4 moved to the right, utilize driver 6 and 2 electric connection of controller, thereby driver 6 starts and makes 2 control mechanical axis 7 antiport of controller, with this drive air discharge fan 5 round trip movement in canopy body 1, accelerate the circulation of canopy body 1 and outside air.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides an automatic ventilation device for modernized green house, includes the canopy body (1), its characterized in that: the greenhouse is characterized in that a controller (2) is fixedly mounted at the left top of the greenhouse body (1), a slide rod (3) is fixedly mounted at the top of an inner cavity of the greenhouse body (1), sliders (4) are movably mounted on the left and right sides of the slide rod (3), an exhaust fan (5) is fixedly mounted at the bottom of each slider (4), a driver (6) is fixedly mounted on the right side of the inner cavity of the slide rod (3), a mechanical shaft (7) is fixedly mounted at the top of the inner cavity of the greenhouse body (1), ventilating frames (8) are fixedly mounted on the left and right sides of the top of the greenhouse body (1), a rotating shaft (9) is fixedly mounted on the left and right sides of each ventilating frame (8), silk threads (10) are fixedly connected to the top of each slider (4), an exhaust window (11) is fixedly mounted on the right side of each rotating shaft (9), and a, the utility model discloses a ventilation air vent, including ventilation frame (8), ventilation window (11), left side fixedly connected with electric wire (13) of strip-shaped piece (12), the top fixed mounting of strip-shaped piece (12) inner chamber has electro-magnet (14), shrinkage pool (15) have all been seted up to the left and right sides of strip-shaped piece (12) inner chamber bottom, the left side fixed mounting of shrinkage pool (15) bottom has gag lever post (16), spacing hole (17) have been seted up at the middle part at ventilation frame (8) top, strip hole (18) have been seted up in the left side at ventilation window (11) top, the bottom fixed mounting of strip hole (18) inner chamber has telescopic link (19.
2. An automatic ventilation and air change device for modern agricultural greenhouses according to claim 1, wherein: the equal fixed mounting in upper and lower both sides of slide bar (3) inner chamber has rodent one (301), the middle part fixed mounting in slider (4) inner chamber has runner (401), the shape of runner (401) surface matches with the shape of rodent one (301).
3. An automatic ventilation and air change device for modern agricultural greenhouses according to claim 1, wherein: the bottom of the sliding block (4) is fixedly provided with a second rodent (402), the outer surface of the mechanical shaft (7) is movably provided with a chain belt (701), and the shape and the size of the second rodent (402) are matched with the shape and the size of the outer surface of the chain belt (701).
4. An automatic ventilation and air change device for modern agricultural greenhouses according to claim 1, wherein: the middle part fixed mounting of air discharge fan (5) has automatically controlled axle (501), controller (2) pass through electric wire (13) and electro-magnet (14), mechanical axis (7) and automatically controlled axle (501) electric connection.
5. An automatic ventilation and air change device for modern agricultural greenhouses according to claim 1, wherein: the shape and size of the limiting block (20) are matched with the shape and size of the concave hole (15), the material of the limiting block (20) is a magnetic material component, and the top magnetic pole of the limiting block (20) is the same as the bottom magnetic pole of the electromagnet (14) after electrification.
6. An automatic ventilation and air change device for modern agricultural greenhouses according to claim 1, wherein: the sliding block (4) is fixedly connected with the rotating shaft (9) through a silk thread (10).
7. An automatic ventilation and air change device for modern agricultural greenhouses according to claim 1, wherein: the shape and the size of the left and the right combined exhaust windows (11) are matched with the shape and the size of the ventilation frame (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110206984.9A CN112806197A (en) | 2021-02-24 | 2021-02-24 | Automatic ventilation device for modern agricultural greenhouse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110206984.9A CN112806197A (en) | 2021-02-24 | 2021-02-24 | Automatic ventilation device for modern agricultural greenhouse |
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| Publication Number | Publication Date |
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| CN112806197A true CN112806197A (en) | 2021-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110206984.9A Withdrawn CN112806197A (en) | 2021-02-24 | 2021-02-24 | Automatic ventilation device for modern agricultural greenhouse |
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| CN (1) | CN112806197A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202444896U (en) * | 2012-01-18 | 2012-09-26 | 宋进亮 | Air exhauster for greenhouse |
| CN205617945U (en) * | 2016-05-11 | 2016-10-05 | 青岛科技大学 | Building is with electronic remote control ventilation window device |
| CN108547532A (en) * | 2018-05-25 | 2018-09-18 | 王昕垚 | Electric self-locking rainproof window |
| CN109041954A (en) * | 2018-07-12 | 2018-12-21 | 王南 | A kind of fleshiness plantation culturing room |
| CN208490397U (en) * | 2018-05-09 | 2019-02-15 | 青海泰盛农业科技有限公司 | A kind of greenhouse ventilation device of large cherry |
| CN109792911A (en) * | 2017-11-16 | 2019-05-24 | 四川开维农业发展有限公司 | Greenhouse automatic window opening device |
| CN110810087A (en) * | 2019-12-05 | 2020-02-21 | 徐州市贾汪区泰瑞农业科技有限公司 | Greenhouse ventilation device for tomato planting |
| CN210382076U (en) * | 2019-07-03 | 2020-04-24 | 迁安亚滦湾国家农业开发创新产业有限公司 | Greenhouse constant temperature ventilation device |
| CN211607586U (en) * | 2020-01-08 | 2020-10-02 | 仙游县六合院农业开发有限公司 | Dragon fruit planting greenhouse with light supplementing effect |
-
2021
- 2021-02-24 CN CN202110206984.9A patent/CN112806197A/en not_active Withdrawn
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202444896U (en) * | 2012-01-18 | 2012-09-26 | 宋进亮 | Air exhauster for greenhouse |
| CN205617945U (en) * | 2016-05-11 | 2016-10-05 | 青岛科技大学 | Building is with electronic remote control ventilation window device |
| CN109792911A (en) * | 2017-11-16 | 2019-05-24 | 四川开维农业发展有限公司 | Greenhouse automatic window opening device |
| CN208490397U (en) * | 2018-05-09 | 2019-02-15 | 青海泰盛农业科技有限公司 | A kind of greenhouse ventilation device of large cherry |
| CN108547532A (en) * | 2018-05-25 | 2018-09-18 | 王昕垚 | Electric self-locking rainproof window |
| CN109041954A (en) * | 2018-07-12 | 2018-12-21 | 王南 | A kind of fleshiness plantation culturing room |
| CN210382076U (en) * | 2019-07-03 | 2020-04-24 | 迁安亚滦湾国家农业开发创新产业有限公司 | Greenhouse constant temperature ventilation device |
| CN110810087A (en) * | 2019-12-05 | 2020-02-21 | 徐州市贾汪区泰瑞农业科技有限公司 | Greenhouse ventilation device for tomato planting |
| CN211607586U (en) * | 2020-01-08 | 2020-10-02 | 仙游县六合院农业开发有限公司 | Dragon fruit planting greenhouse with light supplementing effect |
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Application publication date: 20210518 |