CN103081757B - Automatic ventilation device of vegetable greenhouse - Google Patents
Automatic ventilation device of vegetable greenhouse Download PDFInfo
- Publication number
- CN103081757B CN103081757B CN201310050505.4A CN201310050505A CN103081757B CN 103081757 B CN103081757 B CN 103081757B CN 201310050505 A CN201310050505 A CN 201310050505A CN 103081757 B CN103081757 B CN 103081757B
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- assembly
- wind
- pulling out
- vegetables
- air door
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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
Abstract
The invention relates to agricultural production equipment, and discloses an automatic ventilation device of a vegetable greenhouse. The automatic ventilation device of the vegetable greenhouse mainly comprises an air pushing cylinder, an air pushing assembly, a fresh air assembly, an electric contact thermometer, a controller and an automatic ventilation actuator, wherein the air pushing cylinder is connected on the air pushing assembly, the air pushing assembly is arranged on the roof of the vegetable greenhouse, and an air pushing ventilation door is arranged on an air suction opening of the air pushing assembly. The automatic ventilation actuator comprises an air pushing driving motor, a speed changing box, a driving gear and a driven gear, wherein the driving gear is mounted on a driven shaft of the speed changing box and meshed with the driven gear, and the driven gear is coupled on a curved plate wheel of the air pushing ventilation door through an elastic clutch. A fresh air ventilation door is arranged inside the fresh air assembly, and a rotating shaft of the fresh air ventilation door is connected on a rotating shaft of a fresh air driving motor. The controller is in electric connection with the electric contact thermometer, the motors and a power port through wires. The automatic ventilation device of the vegetable greenhouse can save a large amount of manpower and prolong the service life of a plastic film at the same time.
Description
Technical field
The present invention relates to a kind of agricultural production equipment, specially refer to a kind of ventilator of vegetable greenhouse.
Background technology
Green house of vegetables is a kind of framework structure of film with heat-insulating property, and its appearance makes people can have vegetables in improper season and fruit.General green house of vegetables is used the skeleton of bamboo structure or steel construction, is covered with one or more layers thermal insulation plastic film above, has so just formed a greenhouse space.Adventitia stops the loss of the carbonic acid gas that inner vegetable growth produces well, makes in canopy, to have good heat insulation effect.
Current green house of vegetables does not have ventilation unit, when daytime, sunlight was abundant, temperature in green house of vegetables is too high, unfavorable fruits and vegetables growth, often thermal insulation plastic film is raised and carried out ventilation and heat, still plastic foil is built to insulation before between the lights again, so not only consume a large amount of manpowers, also easily cause plastic foil to damage or reduction of service life.
Summary of the invention
The object of the invention is provides a kind of automatic ventilation equipment for green house of vegetables, in use, ceiling temperature and lower limit temperature are set, when in green house of vegetables, excess Temperature surpasses ceiling temperature, automatically open air door and carry out ventilation and heat, when in green house of vegetables, temperature is reduced to lower limit temperature, self-closing damper carries out accumulation of heat or insulation.
A kind of green house of vegetables automatic ventilation equipment of the present invention, mainly by pulling out air duct (2), pull out wind assembly (5), travel switch a(6), travel switch b(18), new wind assembly (8), electric contact thermometer (7), controller (17) and automatic ventilation executing agency form, wherein, pull out air duct (2) and be connected to the upper end of pulling out wind assembly (5), pull out wind assembly (5) lower end and have inlet scoop (16), pulling out wind assembly (5) is arranged on the ceiling of green house of vegetables, the interior space of pulling out wind assembly (5) forms pulls out wind passage (3), pull out the inlet scoop (16) of wind assembly (5) in green house of vegetables, pull out on the inlet scoop (16) of wind assembly (5) and pull out wind air door (15), pull out and on wind air door (15), have bent plate (19) and spacing meeting and discussing (13), the bent head end of bent plate (19) has runner, runner forms the hinge hinge that pulls out wind air door (15), spacing meeting and discussing (13) is at the offside of hinge hinge, automatic ventilation executing agency comprises pulls out wind drive motors (22), gearbox (24), driving gear (23), driven gear (21) and elastic force clutch (20), gearbox (24) is arranged on the outside of pulling out wind assembly (5), the rotating shaft of pulling out wind drive motors (22) is connected to the driving shaft of gearbox (24) by shaft coupling, driving gear (23) is installed on the driven shaft of gearbox (24), driving gear (23) is engaged to driven gear (21), driven gear (21) is coupled on bent plate (19) runner that pulls out wind air door (15) by elastic force clutch (20), travel switch a(6) limit switch when pulling out wind air door (15) and close, travel switch b(18) limit switch when pulling out wind air door (15) and open, travel switch a(6) be arranged on the pulling out on wind assembly (5) wall body of hinge hinge offside, travel switch b(18) by support, be arranged on pulling out on wind assembly (5) wall body of hinge hinge homonymy, during concrete enforcement, travel switch a(6) be arranged on and pull out wind air door (15) and close the position that (13) can collide of meeting and discussing, the time limit position that puts in place, travel switch b(18) be arranged on and pull out wind air door (15) and open the position that while putting in place, air door can collide, in new wind assembly (8), there are the spacing shelves of new wind air door (10), door cheek (9) and air door (12), on the outside wall body of new wind assembly (8), new wind drive motors is installed, the rotating shaft of new wind air door (10) is connected in the rotating shaft of new wind drive motors, during concrete enforcement, the rotating shaft of new wind air door (10) is connected in the rotating shaft of new wind drive motors by elastic force clutch, in the rotating shaft of new wind drive motors, have electromagnetic brake, electromagnetic brake and new wind drive motors carry out electric-linked, on the panel of controller (17), have real time temperature display screen, controller (17) is respectively by wire and travel switch a(6), travel switch b(18), electric contact thermometer (7), the power interface (25) that pulls out wind drive motors (22), new wind drive motors, electromagnetic brake and power supply be electrically connected.
In above-mentioned invention, pulling out air duct (2) is cylindrical structure, pull out on the top of air duct (2) and have rain cover (28), rain cover (28) by pole with pull out air duct (2) and be connected, rain cover (28) and the space of pulling out between air duct (2) form exhausting window (1), and there is adpting flange b(27 the lower end of pulling out air duct (2)); Pull out wind assembly (5) for upper end is the structure that round mouth, lower end are square opening, in the round mouth upper end of pulling out wind assembly (5), have adpting flange a(26), adpting flange a(26) with adpting flange b(27) with bolt, be connected; There is assembly flange (4) pulling out on wind assembly (5), pull out wind assembly (5) and be arranged on the ceiling of green house of vegetables by assembly flange (4).
In above-mentioned invention, pulling out wind assembly (5) is arranged on the green house of vegetables south or the western ceiling of holding, new wind assembly (8) is arranged on the ground of green house of vegetables the North or the east side, the outside air inlet of new wind assembly (8) is in the outside of green house of vegetables, and the inner side air outlet of new wind assembly (8) is in the inside of green house of vegetables.
In above-mentioned invention, application elastic force clutch (20) is as the coupling unit between driven gear (21) and bent plate (19) runner, elastic force clutch (20) is comprised of intermeshing two parts with trapezoidal engaging tooth and spring, the hypotenuse angle of inclination of trapezoidal engaging tooth is greater than 45 degree, when pulling out wind air door (15), open or close and put in place when bent plate (19) is no longer rotated, driven gear (21) also can be rotated further because of effect of inertia, at this moment, the rotatory force of driven gear (21) will overcome the elastic force of spring, make two meshing part skids of elastic force clutch (20), allow driven gear (21) be rotated further, until inertia disappears, like this, just protected air door and gearbox can not damage, in driven gear (21) stall or pull out wind air door (15) and opening or closing while not putting in place, the elastic force of spring makes two meshing parts closely engagement each other of elastic force clutch (20), makes to pull out wind air door (15) smooth opening or closes and put in place.
In above-mentioned invention, pulling out wind assembly (5) is arranged on the green house of vegetables south or the western ceiling of holding, and be connected with and pull out air duct (2) pulling out on wind assembly (5), new wind assembly (8) is arranged on the ground of green house of vegetables the North or the east side, the inside and outside temperature difference of difference of height between the two and booth makes to pull out the wind scorpion of pulling out that air duct (2) has chimney, the height temperature difference higher or that booth is inside and outside of pulling out air duct (2) is larger, pull out wind scorpion Shaoxing opera strong, air themperature in green house of vegetables is higher than the air themperature of canopy external environment, and when pulling out wind air door (15) and opening, hot-air in green house of vegetables is just done ascending motion by pulling out pulling out in wind passage (3) in air duct, form ascending air, from exhausting window (1), discharge, cold air outside green house of vegetables supplements in green house of vegetables by new wind assembly (8), carry out automatic cycle ventilation, temperature in whole booth is lowered, do not need to use blower fan, do not need to raise plastic foil, save electric energy, save manpower, pulling out wind assembly (5) and pulling out thing two ends or the two ends, north and south that air duct (2) is separately positioned on green house of vegetables, make gas exchange action region in whole booth, there is no dead angle.In the present invention, controller (17) is temperature controller, there is the open air door of accepting electric contact thermometer (7) or information, the travel switch b(18 that closes air door) open air door put in place information, travel switch a(6) put in place information and carry out open air door or close the function of air door action of pass air door, electric contact thermometer (7) has the function that ceiling temperature and lower limit temperature are set, and the corresponding interface of the contact of ceiling temperature and lower limit temperature and controller (17) is electrically connected.During concrete enforcement, ceiling temperature and the lower limit temperature of electric contact thermometer (7) are set according to the fruit and vegetable varieties in booth, when ceiling temperature is set to 30 ℃, when lower limit temperature is set to 20 ℃, in the situation that the real time temperature in booth is over 30 ℃, controller (17) makes to pull out the forward working line energising of wind drive motors (22), pull out wind drive motors (22) and carry out forward operation, drive the driving shaft of gearbox (24) to be rotated in the forward, the driven shaft of gearbox (24) is rotated backward, drive driving gear (23) to rotate backward, thereby drive driven gear (21) to make forward rotation, by bent plate (19), drive and to pull out wind air door (15) and take the axle center of driven gear (21) and clockwise rotate as rotating shaft again, pulling out wind air door (15), open, simultaneously, with a flowing mode, make the rotating shaft forward rotation of new wind drive motors, make new wind air door (10) clockwise rotate 90 degree, thereby new wind air door (10) is opened, make to carry out in green house of vegetables ventilation, be opened to while limiting position pulling out wind air door (15), travel switch b(18) push rod is subject to pulling out the collision of wind air door (15) and switch contact is disconnected, make to pull out (22) power-off of wind drive motors and stop, driven gear (21) and bent plate (19) stop operating simultaneously, pull out wind air door (15) and stay open state, new wind air door (10) is when opening to 90 °, encounter the spacing shelves of air door (12) and stop, the rotating shaft of new wind drive motors is embraced by electromagnetic brake and makes new wind air door (10) stay open state, in the situation that the temperature in booth is down to 20 ℃, controller (17) makes to pull out the reversion working line energising of wind drive motors (22), pull out wind drive motors (22) operation of reversing, drive the driving shaft of gearbox (24) to counter-rotate, make the driven shaft of gearbox (24) carry out forward rotation, drive driving gear (23) to carry out forward rotation, thereby drive driven gear (21) to rotate backward, by bent plate (19), drive and to pull out wind air door (15) and take the axle center of driven gear (21) and rotate counterclockwise as rotating shaft again, pulling out wind air door (15), close, simultaneously, with a flowing mode, the rotating shaft of new wind drive motors is rotated backward, make new wind air door (10) rotate counterclockwise 90 degree, new wind air door (10) is closed, thereby make to carry out in green house of vegetables heat storing and heat preserving, be closed to while limiting position pulling out wind air door (15), travel switch a(6) push rod is subject to the collision of spacing meeting and discussing (13) and switch contact is disconnected, make to pull out (22) power-off of wind drive motors and stop, driven gear (21) and bent plate (19) stop operating simultaneously, pull out wind air door (15) and keep closed condition, new wind air door (10) stops while closing to door cheek (9), the rotating shaft of new wind drive motors is embraced by electromagnetic brake and is made new wind air door (10) keep closed condition.The present invention only just needs electricity consumption what open or close air door, and the electricity consumption time is the several seconds only, utilizes the stack effect that pulls out air duct (2) to carry out gravity-flow ventilation ventilation in whole ventilation process, does not need to use blower fan, saves electric energy and reduces investment cost.
The invention has the beneficial effects as follows: for green house of vegetables provides a kind of automatic ventilation equipment, by ceiling temperature and lower limit temperature are set, automatically carry out ventilation and heat or heat storing and heat preserving, do not need to raise plastic foil heat radiation, save a large amount of manpowers, extend the service life of plastic foil simultaneously; Utilization is pulled out the stack effect that air duct (2) has and is carried out gravity-flow ventilation cooling, does not need to use blower fan, saves electric energy.
Accompanying drawing explanation
Accompanying drawing is the structure chart of a kind of green house of vegetables automatic ventilation equipment of the present invention.
In figure: 1. exhausting window, 2. pull out air duct, 3. pull out wind passage, 4. assembly flange, 5. pulls out wind assembly, 6. travel switch a, 7. electric contact thermometer, 8. new wind assembly, 9. door cheek, 10. new wind air door, 11. new wind, 12. spacing grades, 13. spacing meeting and discussing, 14. sealing gaskets, 15. pull out wind air door, 16. inlet scoops, 17. controllers, 18. travel switch b, 19. bent plates, 20. elastic force clutches, 21. driven gears, 22. pull out wind drive motors, 23. driving gears, 24. gearboxes, 25. power interfaces, 26. adpting flange a, 27. adpting flange b, 28. rain covers.
Embodiment
Embodiment green house of vegetables automatic ventilation equipment shown in the drawings is mainly by pulling out air duct (2), pull out wind assembly (5), travel switch a(6), travel switch b(18), new wind assembly (8), electric contact thermometer (7), controller (17) and automatic ventilation executing agency form, wherein, pull out 3 meters of the height of air duct (2), pulling out air duct (2) is cylindrical structure, pull out wind assembly (5) upper end and be round mouth, lower end is the structure of square opening, at the upper end round mouth that pulls out wind assembly (5), there is adpting flange a(26), in the lower end of pulling out air duct (2), there is adpting flange b(27), adpting flange a(26) with adpting flange b(27) with bolt, be connected, pull out on the top of air duct (2) and have rain cover (28), rain cover (28) by pole with pull out air duct (2) and be connected, rain cover (28) and the space of pulling out between air duct (2) form exhausting window (1), on wind assembly (5), there is assembly flange (4) pulling out, pulling out wind assembly (5) is arranged on the ceiling of green house of vegetables one end by assembly flange (4), pull out the inlet scoop (16) of wind assembly (5) in the inside of green house of vegetables, the interior space of pulling out wind assembly (5) forms pulls out wind passage (3), pull out on the inlet scoop (16) of wind assembly (5) and pull out wind air door (15), pull out and on wind air door (15), have bent plate (19) and spacing meeting and discussing (13), the bent head end of bent plate (19) has runner, runner forms the hinge hinge that pulls out wind air door (15), spacing meeting and discussing (13) is at the offside of hinge hinge, pull out wind air door (15) and be subject to automatic ventilation actuating mechanism controls, in new wind assembly (8), there are the spacing shelves of new wind air door (10), door cheek (9) and air door (12), on the outside wall body of new wind assembly (8), new wind drive motors is installed, the rotating shaft of new wind air door (10) is connected in the rotating shaft of new wind drive motors by elastic force clutch, in the rotating shaft of new wind drive motors, there is electromagnetic brake, electromagnetic brake and new wind drive motors carry out electric-linked, new wind drive motors is set to crawl working method, 1 second crawl time, new wind assembly (8) is arranged on the ground of green house of vegetables other end side, and the outside air inlet of new wind assembly (8) is in the outside of green house of vegetables, and the inner side air outlet of new wind assembly (8) is in the inside of green house of vegetables, automatic ventilation executing agency comprises pulls out wind drive motors (22), gearbox (24), driving gear (23), driven gear (21) and elastic force clutch (20), gearbox (24) is arranged on the outside of pulling out wind assembly (5), the rotating shaft of pulling out wind drive motors (22) is connected to the driving shaft of gearbox (24) by shaft coupling, driving gear (23) is installed on the driven shaft of gearbox (24), driving gear (23) is engaged to driven gear (21), driven gear (21) is coupled on bent plate (19) runner that pulls out wind air door (15) by elastic force clutch (20), travel switch a(6) limit switch when pulling out wind air door (15) and close, travel switch b(18) limit switch when pulling out wind air door (15) and open, travel switch a(6) be arranged on pulling out on wind assembly (5) wall body and closing the position that (13) can collide of meeting and discussing, the time limit position that puts in place, travel switch b(18 pulling out wind air door (15) of hinge hinge offside) by support, be arranged on pulling out on wind assembly (5) wall body of hinge hinge homonymy and open the position that air door can collide while putting in place pulling out wind air door (15), on the panel of controller (17), have real time temperature display screen, controller (17) is respectively by wire and travel switch a(6), travel switch b(18), electric contact thermometer (7), the power interface (25) that pulls out wind drive motors (22), new wind drive motors, electromagnetic brake and power supply be electrically connected.
The above embodiments in use, ceiling temperature and the lower limit temperature of electric contact thermometer (7) are set according to the fruit and vegetable varieties in booth, when ceiling temperature is set to 30 ℃, when lower limit temperature is set to 21 ℃, in the situation that the real time temperature in booth is over 30 ℃, controller (17) makes to pull out wind drive motors (22) and carries out forward operation, pulling out wind air door (15), open, hot-air in green house of vegetables just pulling out in wind passage (3) in pulling out air duct is done ascending motion, shape is at ascending air, hot-air is discharged from exhausting window (1), be opened to while limiting position pulling out wind air door (15), travel switch b(18) contact disconnects, making to pull out wind drive motors (22) power-off stops, pull out wind air door (15) and stay open state, simultaneously, with a flowing mode, make 90 ° of the rotating shaft forward rotation of new wind drive motors, new wind air door (10) is opened, cold air outside green house of vegetables supplements in green house of vegetables by new wind assembly (8), carry out automatic circulating breathable, thereby make the mercury dropped in green house of vegetables, the rotating shaft of new wind drive motors is embraced by electromagnetic brake and makes new wind air door (10) stay open state, in the situation that the temperature in booth is down to 21 ℃, controller (17) makes to pull out wind drive motors (22) operation of reversing, making to pull out wind air door (15) closes, be closed to while limiting position pulling out wind air door (15), travel switch a(6) contact disconnects, make to pull out wind drive motors (22) power-off source and stop, pulling out wind air door (15) and keep closed condition, simultaneously, with a flowing mode, make the rotating shaft of new wind drive motors rotate backward 90 °, new wind air door (10) is closed, thereby make to carry out heat storing and heat preserving in green house of vegetables, the rotating shaft of new wind drive motors is embraced by electromagnetic brake and is made new wind air door (10) keep closed condition.
Claims (4)
1. a green house of vegetables automatic ventilation equipment, it is characterized in that device is mainly by pulling out air duct (2), pull out wind assembly (5), travel switch a(6), travel switch b(18), new wind assembly (8), electric contact thermometer (7), controller (17) and automatic ventilation executing agency form, wherein, pull out air duct (2) and be connected to the upper end of pulling out wind assembly (5), pull out wind assembly (5) lower end and have inlet scoop (16), pulling out wind assembly (5) is arranged on the ceiling of green house of vegetables, the interior space of pulling out wind assembly (5) forms pulls out wind passage (3), pull out the inlet scoop (16) of wind assembly (5) in green house of vegetables, pull out on the inlet scoop (16) of wind assembly (5) and pull out wind air door (15), pull out and on wind air door (15), have bent plate (19) and spacing meeting and discussing (13), the bent head end of bent plate (19) has runner, runner forms the hinge hinge that pulls out wind air door (15), spacing meeting and discussing (13) is at the offside of hinge hinge, automatic ventilation executing agency comprises pulls out wind drive motors (22), gearbox (24), driving gear (23), driven gear (21) and elastic force clutch (20), gearbox (24) is arranged on the outside of pulling out wind assembly (5), the rotating shaft of pulling out wind drive motors (22) is connected to the driving shaft of gearbox (24) by shaft coupling, driving gear (23) is installed on the driven shaft of gearbox (24), driving gear (23) is engaged to driven gear (21), driven gear (21) is coupled on bent plate (19) runner that pulls out wind air door (15) by elastic force clutch (20), travel switch a(6) limit switch when pulling out wind air door (15) and close, travel switch b(18) limit switch when pulling out wind air door (15) and open, travel switch a(6) be arranged on the pulling out on wind assembly (5) wall body of hinge hinge offside, travel switch b(18) by support, be arranged on pulling out on wind assembly (5) wall body of hinge hinge homonymy, in new wind assembly (8), there are the spacing shelves of new wind air door (10), door cheek (9) and air door (12), on the outside wall body of new wind assembly (8), new wind drive motors is installed, the rotating shaft of new wind air door (10) is connected in the rotating shaft of new wind drive motors, in the rotating shaft of new wind drive motors, have electromagnetic brake, electromagnetic brake and new wind drive motors carry out electric-linked, on the panel of controller (17), have real time temperature display screen, controller (17) is respectively by wire and travel switch a(6), travel switch b(18), electric contact thermometer (7), the power interface (25) that pulls out wind drive motors (22), new wind drive motors, electromagnetic brake and power supply be electrically connected.
2. a kind of green house of vegetables automatic ventilation equipment according to claim 1, it is characterized in that pulling out air duct (2) is cylindrical structure, pull out on the top of air duct (2) and have rain cover (28), rain cover (28) by pole with pull out air duct (2) and be connected, rain cover (28) and the space of pulling out between air duct (2) form exhausting window (1), and there is adpting flange b(27 the lower end of pulling out air duct (2)); Pull out wind assembly (5) for upper end is the structure that round mouth, lower end are square opening, in the round mouth upper end of pulling out wind assembly (5), have adpting flange a(26), adpting flange a(26) with adpting flange b(27) with bolt, be connected.
3. a kind of green house of vegetables automatic ventilation equipment according to claim 1, is characterized in that there is assembly flange (4) pulling out on wind assembly (5), pulls out wind assembly (5) and is arranged on the ceiling of green house of vegetables by assembly flange (4).
4. a kind of green house of vegetables automatic ventilation equipment according to claim 1, it is characterized in that pulling out wind assembly (5) is arranged on the green house of vegetables south or the western ceiling of holding, new wind assembly (8) is arranged on the ground of green house of vegetables the North or the east side, the outside air inlet of new wind assembly (8) is in the outside of green house of vegetables, and the inner side air outlet of new wind assembly (8) is in the inside of green house of vegetables.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310050505.4A CN103081757B (en) | 2013-02-15 | 2013-02-15 | Automatic ventilation device of vegetable greenhouse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310050505.4A CN103081757B (en) | 2013-02-15 | 2013-02-15 | Automatic ventilation device of vegetable greenhouse |
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| Publication Number | Publication Date |
|---|---|
| CN103081757A CN103081757A (en) | 2013-05-08 |
| CN103081757B true CN103081757B (en) | 2014-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310050505.4A Expired - Fee Related CN103081757B (en) | 2013-02-15 | 2013-02-15 | Automatic ventilation device of vegetable greenhouse |
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| CN (1) | CN103081757B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103404394A (en) * | 2013-08-28 | 2013-11-27 | 蔡兆巨 | Pollution-free multi-functional planting greenhouse |
| CN104377575B (en) * | 2014-11-14 | 2017-01-18 | 无锡信大气象传感网科技有限公司 | Quick reaction type rainproof and windproof distribution box |
| CN107864786A (en) * | 2017-11-11 | 2018-04-03 | 尹卓坤 | A kind of melon dish greenhouse discharging device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201199816Y (en) * | 2008-05-27 | 2009-03-04 | 邢作山 | Assembled house for planting edible fungus |
| CN203027831U (en) * | 2013-02-15 | 2013-07-03 | 衢州市煜鑫农产品加工技术开发有限公司 | Automatic ventilation device for vegetable greenhouse |
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2013
- 2013-02-15 CN CN201310050505.4A patent/CN103081757B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201199816Y (en) * | 2008-05-27 | 2009-03-04 | 邢作山 | Assembled house for planting edible fungus |
| CN203027831U (en) * | 2013-02-15 | 2013-07-03 | 衢州市煜鑫农产品加工技术开发有限公司 | Automatic ventilation device for vegetable greenhouse |
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| CN103081757A (en) | 2013-05-08 |
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