CN215123015U - Natural ventilation device for pig house - Google Patents
Natural ventilation device for pig house Download PDFInfo
- Publication number
- CN215123015U CN215123015U CN202121134921.9U CN202121134921U CN215123015U CN 215123015 U CN215123015 U CN 215123015U CN 202121134921 U CN202121134921 U CN 202121134921U CN 215123015 U CN215123015 U CN 215123015U
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- connecting plate
- ventilation device
- solar panel
- natural ventilation
- 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.)
- Expired - Fee Related
Links
- 238000009423 ventilation Methods 0.000 title claims abstract description 35
- 239000000523 sample Substances 0.000 claims abstract description 14
- 238000003860 storage Methods 0.000 claims abstract description 6
- 241000883990 Flabellum Species 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 40
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 28
- 238000012545 processing Methods 0.000 claims description 14
- 239000003651 drinking water Substances 0.000 claims description 3
- 235000020188 drinking water Nutrition 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 230000009471 action Effects 0.000 abstract description 4
- 244000144972 livestock Species 0.000 abstract 1
- 238000005086 pumping Methods 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000036760 body temperature Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000037406 food intake Effects 0.000 description 1
- 235000012631 food intake Nutrition 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000008642 heat stress Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 244000144977 poultry Species 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/108—Rainwater harvesting
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Landscapes
- Housing For Livestock And Birds (AREA)
Abstract
The utility model discloses a natural ventilation device for a pigsty, which belongs to the field of livestock equipment and comprises a connecting plate, wherein the top of the connecting plate is fixedly connected with a fixed box, the side surface of the fixed box is movably sleeved with a rotating shaft, one end of the rotating shaft is fixedly connected with a motor, the other end of the rotating shaft is fixedly connected with an active wheel, the bottom of the active wheel is engaged and connected with a driven wheel, the bottom of the driven wheel is fixedly connected with a fan blade, the top of the connecting plate is fixedly connected with a supporting plate, the top of the supporting plate is fixedly connected with a solar panel, and the bottom of the solar panel is electrically connected with a storage battery through a first lead; through setting up motor, action wheel, following driving wheel, flabellum, controller and temperature-sensing probe, be convenient for monitor the temperature in the pig house to carry out intelligent control to the motor, avoided ventilation unit need work always and ventilate, cause the extravagant problem of energy.
Description
Technical Field
The utility model belongs to the technical field of poultry equipment, concretely relates to pig house is with natural ventilation device.
Background
In summer, the live pig breeding faces adverse effects brought by a high-temperature high-humidity environment, researches show that when the environmental temperature gradually rises, the pig body starts to regulate the body temperature by accelerating blood circulation and accelerating skin and respiration evaporation heat dissipation, and shows that the heat stress reactions such as activity and food intake reduction, drinking water increase, body temperature rise, heart rate acceleration, production performance reduction and the like cause the quality reduction of live pig products, and generally a ventilation device is needed for ventilation.
However, the ventilation device that takes a breath of present most is not convenient for carry out intelligent ventilation cooling according to the temperature in the pig house, leads to the ventilation device that takes a breath to need work always and ventilates to cause the extravagant problem of energy, and the ventilation device that takes a breath of present most adopts traditional power supply mode to supply power for it, thereby is unfavorable for the environmental protection, for this reason, we have proposed a natural ventilation device that takes a breath for the pig house.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a pig house is with natural ventilation device to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a natural ventilation device for a hog house comprises a connecting plate, wherein a fixed box is fixedly connected to the top of the connecting plate, a rotating shaft is movably sleeved on the side face of the fixed box, a motor is fixedly connected to one end of the rotating shaft, a driving wheel is fixedly connected to the other end of the rotating shaft, a driven wheel is meshed and connected to the bottom of the driving wheel, fan blades are fixedly connected to the bottom of the driven wheel, a supporting plate is fixedly connected to the top of the connecting plate, a solar panel is fixedly connected to the top of the supporting plate, a storage battery is electrically connected to the bottom of the solar panel through a first lead, a controller is fixed to the side face of the supporting plate, a fixed sleeve is fixedly connected to the bottom of the connecting plate, a movable rod is movably connected to the side face of the fixed sleeve, a movable plate is fixedly connected to one end of the movable rod, a spring is fixedly connected to the side face of the movable plate, the bottom fixedly connected with active carbon board of fixed cover, the bottom fixedly connected with temperature-sensing probe of connecting plate, and the top fixedly connected with water tank of connecting plate, one side fixedly connected with water pump at water tank top, the top fixedly connected with outlet pipe of water pump, and the bottom fixedly connected with drinking-water pipe of water pump, the opposite side fixedly connected with collecting pipe at water tank top.
As a preferred embodiment, the bottom of the connecting plate is fixedly connected with a connecting rod, and the inside of the connecting rod is movably sleeved with the outside of the fan blade.
In a preferred embodiment, the solar panel is inclined, and eight solar cell blocks are fixedly mounted inside the solar panel.
As a preferred implementation mode, the controller includes a signal receiving module, a signal processing module, a value setting module and a circuit control module, an input end of the signal receiving module is in signal connection with an output end of the temperature sensing probe, an output end of the signal receiving module is in signal connection with an input end of the signal processing module, an output end of the signal processing module is in signal connection with an input end of the value setting module, an output end of the value setting module is in signal connection with an input end of the circuit control module, and an output end of the circuit control module is electrically connected with an input end of the motor.
As a preferred embodiment, a handle is fixedly connected to the front surface of the movable plate.
As a preferred embodiment, one end of the water outlet pipe is fixedly connected with a spray head, and the spray head is positioned right above the solar panel.
Compared with the prior art, the beneficial effects of the utility model are that:
this natural ventilation device for pig house through setting up motor, action wheel, following driving wheel, flabellum, controller and temperature-sensing probe, is convenient for monitor the temperature in the pig house to carry out intelligent control to the motor, avoided ventilation device need work always and ventilate, cause the extravagant problem of energy.
According to the natural ventilation device for the pigsty, the solar panel and the storage battery are arranged, so that solar energy can be converted into electric energy by the solar panel and stored in the storage battery to supply power for the ventilation device, the problem that the traditional power supply mode is adopted to supply power for the ventilation device is solved, and the natural ventilation device is more environment-friendly;
this natural ventilation device for pig house through setting up fixed cover, movable rod, fly leaf, spring and activated carbon plate, can utilize fixed cover to be convenient for dismantle the installation to activated carbon plate to the change for activated carbon plate has brought the facility.
Drawings
FIG. 1 is a front sectional view of the structure of the present invention;
fig. 2 is a top view of a solar panel according to the present invention;
fig. 3 is an enlarged schematic view of the utility model at a in fig. 1;
fig. 4 is a schematic view of the electrical connection of the controller according to the present invention;
fig. 5 is a perspective view of the middle collecting pipe of the present invention.
In the figure: 1. a connecting plate; 2. a fixed box; 3. a rotating shaft; 4. a motor; 5. a driving wheel; 6. a driven wheel; 7. a fan blade; 8. a support plate; 9. a solar panel; 10. a controller; 101. a signal receiving module; 102. a signal processing module; 103. a value setting module; 104. a circuit control module; 11. a storage battery; 12. fixing a sleeve; 13. a movable rod; 14. a movable plate; 15. a spring; 16. an activated carbon plate; 17. a temperature sensing probe; 18. a water tank; 19. a water pump; 20. a water outlet pipe; 21. a water pumping pipe; 22. and collecting the tubes.
Detailed Description
The present invention will be further described with reference to the following examples.
The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention. The condition in the embodiment can be further adjusted according to concrete condition the utility model discloses a it is right under the design prerequisite the utility model discloses a simple improvement of method all belongs to the utility model discloses the scope of claiming.
Referring to fig. 1, the present invention provides a natural ventilation device for pigsty, which comprises a connection board 1, an activated carbon board 16 and a temperature sensing probe 17, for facilitating ventilation of pigsty, the top of the connecting plate 1 can be fixedly connected with a fixed box 2, the side surface of the fixed box 2 is movably sleeved with a rotating shaft 3, one end of the rotating shaft 3 is fixedly connected with a motor 4, the other end of the rotating shaft 3 is fixedly connected with a driving wheel 5, the bottom of the driving wheel 5 is engaged and connected with a driven wheel 6, the bottom of the driven wheel 6 is fixedly connected with a fan blade 7, the bottom of the connecting plate 1 is fixedly connected with a connecting rod, the inside of the connecting rod is movably sleeved with the outside of the fan blade 7, when opening motor 4, rotation axis 3 can take place to rotate, and rotation axis 3 can drive action wheel 5 and take place to rotate, and action wheel 5 can drive flabellum 7 through following driving wheel 6 and take place to rotate to the ventilation of for the pig house has brought the facility.
Please refer to fig. 1 and 2, in order to supply power to the motor 4, the support plate 8 is fixedly connected to the top of the connection plate 1, the solar panel 9 is fixedly connected to the top of the support plate 8, the bottom of the solar panel 9 is electrically connected to the battery 11 through a wire, the solar panel 9 is inclined, and eight solar cells are fixedly mounted inside the solar panel 9, so that the solar panel 9 converts solar energy into electric energy to be stored in the battery 11 for supplying power to the ventilation motor 4, thereby avoiding the problem of supplying power to the ventilation motor in the conventional power supply mode, and being more environment-friendly.
Referring to fig. 1 and 4, in order to facilitate intelligent control of the motor 4, a controller 10 may be fixed on a side surface of the support plate 8, and the controller 10 includes a signal receiving module 101, a signal processing module 102, a value setting module 103, and a circuit control module 104, an input end of the signal receiving module 101 is in signal connection with an output end of the temperature sensing probe 17, an output end of the signal receiving module 101 is in signal connection with an input end of the signal processing module 102, an output end of the signal processing module 102 is in signal connection with an input end of the value setting module 103, an output end of the value setting module 103 is in signal connection with an input end of the circuit control module 104, an output end of the circuit control module 104 is electrically connected with an input end of the motor 4, when the temperature sensing probe 17 automatically monitors the temperature inside the pigsty, the temperature sensing probe 17 transmits temperature information to the signal receiving module 101 in a signal manner, and signal reception module 101 can be with the signal transmission who accepts for signal processing module 102, and signal processing module 102 can handle the signal, and signal transmission after will handling is for numerical value setting module 103, when the inside temperature of pig house is higher than numerical value setting module 103 set value, circuit control module 104 can switch on the circuit of motor 4, make motor 4 open because of the circular telegram, cool down and ventilation to the inside temperature of pig house through flabellum 7, when the inside temperature of pig house is lower than numerical value setting module 103 set value, circuit control module 104 can close the circuit of motor 4, make motor 4 close because of the outage, thereby realize the purpose of automatic intelligent cooling ventilation.
Referring to fig. 1 and 3, in order to facilitate the detachment and replacement of the activated carbon plate 16, a fixed sleeve 12 is fixedly connected to the bottom of the connecting plate 1, a movable rod 13 is movably connected to the side of the fixed sleeve 12, a movable plate 14 is fixedly connected to one end of the movable rod 13, a spring 15 is fixedly connected to the side of the movable plate 14, the activated carbon plate 16 is fixedly connected to the bottom of the fixed sleeve 12, a temperature sensing probe 17 is fixedly connected to the bottom of the connecting plate 1, a handle is fixedly connected to the front of the movable plate 14, when the activated carbon plate 16 needs to be detached and replaced, the handle is pulled, at this time, the movable plate 14 drives the movable rod 13 to move, the spring 15 is forced to deform, the movable rod 13 moves into the fixed sleeve 12, at this time, the fixed sleeve 12 is pulled, the fixed sleeve 12 is separated from the connecting plate 1, and the detachment and replacement of the activated carbon plate 16 are facilitated, the activated carbon plate 16 can filter the air in the pigsty, so that the problem of environmental pollution caused by direct discharge in the air is avoided.
Referring to fig. 1 and 5, in order to clean the surface of the solar panel 9, the water tank 18 may be fixedly connected to the top of the connection plate 1, the water pump 19 is fixedly connected to one side of the top of the water tank 18, the water outlet pipe 20 is fixedly connected to the top of the water pump 19, the water pumping pipe 21 is fixedly connected to the bottom of the water pump 19, the collecting pipe 22 is fixedly connected to the other side of the top of the water tank 18, and the nozzle is fixedly connected to one end of the water outlet pipe 20 and located right above the solar panel 9, when the water pump 19 is turned on, the water pumping pipe 21 pumps out water inside the water tank 18, and the water outlet pipe 20 sprays water onto the surface of the solar panel 9 through the nozzle, so as to wash dust on the solar panel 9, which brings convenience to cleaning of the solar panel 9, and collect rainwater inside the water tank 18 by using the collecting pipe 22, thereby saving more energy.
The utility model discloses a theory of operation and use flow: firstly, when the temperature sensing probe 17 automatically monitors the temperature inside the pigsty, the temperature sensing probe 17 transmits the temperature information to the signal receiving module 101 in a signal mode, the signal receiving module 101 transmits the received signal to the signal processing module 102, the signal processing module 102 processes the signal and transmits the processed signal to the numerical value setting module 103, when the temperature inside the pigsty is higher than the set value of the numerical value setting module 103, the circuit control module 104 switches on the circuit of the motor 4, so that the motor 4 is switched on due to the power-on, the temperature inside the pigsty is cooled and ventilated through the fan blades 7, when the temperature inside the pigsty is lower than the set value of the numerical value setting module 103, the circuit control module 104 switches off the circuit of the motor 4, so that the motor 4 is switched off due to the power-off, and the purpose of automatic intelligent cooling and ventilation is realized, then when the activated carbon plate 16 needs to be disassembled and replaced, the handle is pulled, at the moment, the movable plate 14 drives the movable rod 13 to move, the spring 15 is stressed to deform, the movable rod 13 moves into the fixed sleeve 12, at the moment, the fixed sleeve 12 is pulled, the fixed sleeve 12 is separated from the connecting plate 1, so that convenience is brought to the disassembly and replacement of the activated carbon plate 16, the activated carbon plate 16 can filter air in the pigsty, the problem of environmental pollution caused by direct discharge in the air is avoided, finally, when the solar panel 9 needs to be cleaned, the water pump 19 is turned on, the water in the water tank 18 is pumped out by the water pumping pipe 21, the water is sprayed to the surface of the solar panel 9 by the water outlet pipe 20 through the spray head, so that dust of the solar panel 9 is washed, convenience is brought to the cleaning of the solar panel 9, rainwater can be collected in the water tank 18 by the collecting pipe 22, thereby saving more energy.
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 (6)
1. The utility model provides a natural ventilation device for pig house, includes connecting plate (1), its characterized in that: the solar fan is characterized in that a fixed box (2) is fixedly connected to the top of the connecting plate (1), a rotating shaft (3) is movably sleeved on the side face of the fixed box (2), a motor (4) is fixedly connected to one end of the rotating shaft (3), a driving wheel (5) is fixedly connected to the other end of the rotating shaft (3), a driven wheel (6) is meshed and connected to the bottom of the driving wheel (5), fan blades (7) are fixedly connected to the bottom of the driven wheel (6), a supporting plate (8) is fixedly connected to the top of the connecting plate (1), a solar panel (9) is fixedly connected to the top of the supporting plate (8), a storage battery (11) is electrically connected to the bottom of the solar panel (9) through a first lead, a controller (10) is fixed to the side face of the supporting plate (8), and a fixed sleeve (12) is fixedly connected to the bottom of the connecting plate (1), the side swing joint of fixed cover (12) has movable rod (13), the one end fixedly connected with fly leaf (14) of movable rod (13), the side fixedly connected with spring (15) of fly leaf (14), the bottom fixedly connected with active carbon board (16) of fixed cover (12), the bottom fixedly connected with temperature-sensing probe (17) of connecting plate (1), and the top fixedly connected with water tank (18) of connecting plate (1), one side fixedly connected with water pump (19) at water tank (18) top, the top fixedly connected with outlet pipe (20) of water pump (19), and the bottom fixedly connected with drinking-water pipe (21) of water pump (19), the opposite side fixedly connected with collecting pipe (22) at water tank (18) top.
2. The natural ventilation device for a pigsty according to claim 1, wherein: the bottom fixedly connected with connecting rod of connecting plate (1), the inside of connecting rod is cup jointed with the outside activity of flabellum (7).
3. The natural ventilation device for a pigsty according to claim 1, wherein: the solar panel (9) is inclined, and eight solar cell blocks are fixedly mounted inside the solar panel (9).
4. The natural ventilation device for a pigsty according to claim 1, wherein: the controller (10) comprises a signal receiving module (101), a signal processing module (102), a numerical value setting module (103) and a circuit control module (104), wherein the input end of the signal receiving module (101) is connected with the output end signal of the temperature sensing probe (17), the output end of the signal receiving module (101) is connected with the input end signal of the signal processing module (102), the output end of the signal processing module (102) is connected with the input end signal of the numerical value setting module (103), the output end of the numerical value setting module (103) is connected with the input end signal of the circuit control module (104), and the output end of the circuit control module (104) is electrically connected with the input end of the motor (4).
5. The natural ventilation device for a pigsty according to claim 1, wherein: the front surface of the movable plate (14) is fixedly connected with a handle.
6. The natural ventilation device for a pigsty according to claim 1, wherein: one end fixedly connected with shower nozzle of outlet pipe (20), the shower nozzle is located solar panel (9) directly over.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121134921.9U CN215123015U (en) | 2021-05-25 | 2021-05-25 | Natural ventilation device for pig house |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121134921.9U CN215123015U (en) | 2021-05-25 | 2021-05-25 | Natural ventilation device for pig house |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215123015U true CN215123015U (en) | 2021-12-14 |
Family
ID=79375706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121134921.9U Expired - Fee Related CN215123015U (en) | 2021-05-25 | 2021-05-25 | Natural ventilation device for pig house |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215123015U (en) |
-
2021
- 2021-05-25 CN CN202121134921.9U patent/CN215123015U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114698565B (en) | Intelligent cowshed of breeding | |
| CN211268111U (en) | Cleaning device for cow breeding | |
| CN215123015U (en) | Natural ventilation device for pig house | |
| CN217694768U (en) | Sheep is bred heat sink for house | |
| CN208175693U (en) | A kind of pig house easy to clean | |
| CN217007999U (en) | Intelligent environment monitoring system applied to pasture | |
| CN212993675U (en) | Plant is with heating equipment that keeps warm and moisturizes | |
| CN215957638U (en) | Ventilation device convenient to install for aquaculture plant | |
| CN210958268U (en) | Anti-heating high-stability solar photovoltaic module | |
| CN214178528U (en) | Breed special constant humidity heat recovery fresh air ventilator | |
| CN210987570U (en) | Poultry and livestock breeding constant temperature system | |
| CN220191654U (en) | Agaricus blazei cultivation box with adjustable water outlet | |
| CN218498653U (en) | Electric prefabricated cabin temperature control device | |
| CN219228637U (en) | Intelligent real-time control system for large-scale pig farm | |
| CN109026767A (en) | A kind of industrial solar energy ventilation fan being easily installed | |
| CN108094230A (en) | A kind of automatic sow feeding management system | |
| CN215302466U (en) | Tenebrio molitor breeding device | |
| CN220524287U (en) | Novel natural ventilation equipment of environmental protection and energy saving | |
| CN214249921U (en) | Constant temperature and humidity air conditioner energy-saving structure | |
| CN216100060U (en) | Foam discharging machine convenient for automatically discharging finished products | |
| CN218245130U (en) | Chicken farm ventilation unit | |
| CN115217779B (en) | Novel ventilating fan with shock wave resistance function | |
| CN220987072U (en) | Pig house structure is raised to temperature-adjustable | |
| CN214404068U (en) | Axial flow fan for air conditioner | |
| CN216821193U (en) | Environmental control system of ecological cowshed |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211214 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |