CN114303739A - Greenhouse ventilation device for intelligent agriculture - Google Patents
Greenhouse ventilation device for intelligent agriculture Download PDFInfo
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- CN114303739A CN114303739A CN202111606507.8A CN202111606507A CN114303739A CN 114303739 A CN114303739 A CN 114303739A CN 202111606507 A CN202111606507 A CN 202111606507A CN 114303739 A CN114303739 A CN 114303739A
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- 238000009423 ventilation Methods 0.000 title claims abstract description 39
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 238000004140 cleaning Methods 0.000 claims description 27
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000001914 filtration Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 abstract description 2
- 235000013311 vegetables Nutrition 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000002146 bilateral effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
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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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- Greenhouses (AREA)
Abstract
The invention relates to a ventilation device UQ1HUANQ1, in particular to a greenhouse ventilation device for intelligent agriculture. The invention aims to provide. The technical scheme is as follows: the utility model provides an intelligent greenhouse ventilation device for agricultural, including: a housing; the driving component is arranged on one side in the shell; the air exchange fans are arranged on two sides in the shell; the middle part in the shell of the air exchange mechanism is provided with the air exchange mechanism, and the air exchange mechanism is connected with the air exchange fan. The invention achieves the effects of rapid ventilation and primary filtration of outside air; the baffle plate can continuously swing in the ventilation process, so that the air can be better diffused to all parts of the greenhouse.
Description
Technical Field
The invention relates to a ventilation device UQ1HUANQ1, in particular to a greenhouse ventilation device for intelligent agriculture.
Background
The vegetable greenhouse is a structure with a good heat preservation effect, so that people can eat vegetables out of season, therefore, the air in the greenhouse becomes more important, and people need to keep the air in the greenhouse at a certain temperature and exchange air frequently.
At present, the existing greenhouse is provided with a notch at a certain position of the greenhouse, so that outside air can slowly enter the greenhouse, the temperature in the greenhouse cannot be easily changed, the greenhouse can be effectively ventilated, however, some defects still exist, and the mode can be used for ventilating the greenhouse slowly, but the ventilating efficiency is low.
Therefore, what is needed is an intelligent agricultural greenhouse ventilation device capable of quickly ventilating and performing preliminary filtering on the outside air to solve the problems in the prior art.
Disclosure of Invention
In order to overcome the defect of low air exchange efficiency in the greenhouse in the prior art, the invention aims to provide the intelligent agricultural greenhouse air exchange device which can exchange air quickly and can carry out primary filtration on outside air.
The technical scheme is as follows: the utility model provides an intelligent greenhouse ventilation device for agricultural, including: a housing; the driving component is arranged on one side in the shell; the air exchange fans are arranged on two sides in the shell; the middle part in the shell of the air exchange mechanism is provided with the air exchange mechanism, and the air exchange mechanism is connected with the air exchange fan.
As a further preferable mode, the ventilation mechanism includes: the first fixing block is fixedly connected to one side in the shell; the lower part of one side of the first fixed block is provided with a filter screen; the guide pipes are symmetrically connected with one side in the shell from top to bottom and are positioned at the rear side of the ventilation fan; one side of the rotating shaft and one side of the ventilating fan are both connected with the rotating shaft.
As a further preferred aspect, the driving assembly comprises: the motor is arranged on one side of the middle part in the shell; one side of an output shaft of the motor is connected with the gear lack and a first gear; one side of each rotating shaft is connected with a driving wheel; a transmission toothed belt is connected between the transmission wheel and the first gear.
As a further preferable scheme, the device further comprises a cleaning assembly, wherein the cleaning assembly comprises: one side of the first fixed block is symmetrically connected with a first sliding chute; the cleaning blocks are arranged between the first sliding grooves in a sliding mode; the first spring is connected between the cleaning block and the first sliding chute; one side of the cleaning block is connected with a connecting rod; the middle part of one side of the first fixing block is provided with a first reel; a second gear and a second reel are rotatably arranged on one side of the first fixing block, and the second gear is matched with the gear lacking; the stay cord is connected with between second reel and the connecting rod, and the stay cord is around on first reel.
As a further preferable scheme, the shielding device further comprises a shielding component, and the shielding component comprises: a plurality of baffles are rotatably arranged on one side of the shell at uniform intervals; the third gear is arranged on both sides of the baffle; the second sliding chutes are symmetrically arranged on one side of the shell; racks are arranged in the second sliding grooves in a sliding mode, the racks are meshed with the third gear, and the racks are matched with the cleaning block; the guide rods are arranged on two sides of the bottom in the shell in a sliding mode and are connected with the racks; the second springs are connected between the guide rods and the shell; the wedge block is symmetrically arranged on one side of the rack in a sliding manner; and a third spring is connected between the wedge block and the rack.
As a further preferable scheme, the device further comprises a collecting assembly, wherein the collecting assembly comprises: the lower part of one side in the shell is provided with a collecting frame in a sliding way; the two sides of the collecting frame are both connected with first sliding blocks, and the first sliding blocks are connected with the shell in a sliding manner; the handle is fixedly connected with one side of the collecting frame.
As a further preferable scheme, the device further comprises a fixing component, and the fixing component comprises: the two sides of the lower part of the shell are both provided with a second fixed block in a sliding manner; the two sides of the lower part of the shell are provided with third sliding chutes; and the second sliding block is arranged in the third sliding groove in a sliding manner and is matched with the second fixed block.
As a further preferable mode, rubber is attached to the outside of the handle.
The invention has the following advantages: 1. the invention achieves the effects of rapid ventilation and primary filtration of outside air;
2. according to the invention, the outside air can quickly enter the greenhouse through the ventilation fan, and the air is primarily filtered through the filter screen;
3. the baffle plate can continuously swing in the ventilation process, so that the air can be better diffused to all parts of the greenhouse.
Drawings
Fig. 1 is a schematic perspective view of a first embodiment of the present invention.
Fig. 2 is a schematic perspective view of a second embodiment of the present invention.
Fig. 3 is a third perspective view of the present invention.
Fig. 4 is a schematic perspective view of the driving mechanism of the present invention.
Fig. 5 is a first perspective view of the ventilation mechanism of the present invention.
Fig. 6 is a second perspective view of the ventilation mechanism of the present invention.
Fig. 7 is a schematic perspective view of the cleaning assembly of the present invention.
FIG. 8 is a schematic view of a shielding three-dimensional structure according to the present invention.
FIG. 9 is an enlarged view of the shielding assembly A of the present invention.
Fig. 10 is a perspective view of the collecting assembly of the present invention.
Fig. 11 is a perspective view of the fixing assembly of the present invention.
FIG. 12 is a schematic perspective view of a shielding assembly according to the present invention.
Number designation in the figures: 1-housing, 2-drive assembly, 21-motor, 22-missing gear, 23-drive wheel, 24-drive toothed belt, 25-first gear, 3-ventilator, 4-ventilator, 41-first fixed block, 42-filter screen, 43-guide tube, 44-rotating shaft, 5-cleaning assembly, 51-cleaning block, 52-first spring, 53-first runner, 54-connecting rod, 55-second gear, 56-pull rope, 57-first reel, 58-second reel, 6-shield assembly, 61-baffle, 62-third gear, 63-rack, 64-second runner, 65-guide rod, 66-second spring, 67-wedge block, 68-third spring, 7-collection component, 71-collection frame, 72-first sliding block, 73-handle, 8-fixing component, 81-third sliding groove, 82-second sliding block and 83-second fixing block.
Detailed Description
The following further describes the technical solution with reference to specific embodiments, and it should be noted that: the words upper, lower, left, right, and the like used herein to indicate orientation are merely for the location of the illustrated structure in the corresponding figures. The serial numbers of the parts are themselves numbered herein, for example: first, second, etc. are used solely to distinguish one from another as to objects described herein, and do not have any sequential or technical meaning. The application states that: the connection and coupling, unless otherwise indicated, include both direct and indirect connections (couplings).
Example 1
An intelligent greenhouse ventilation device for agriculture is shown in figures 1-6 and comprises a shell 1, a driving assembly 2, a ventilation fan 3 and a ventilation mechanism 4, wherein the ventilation fan 3 is mounted on the upper side and the lower side in the shell 1, the driving assembly 2 is arranged on the rear side in the shell 1, the ventilation mechanism 4 is arranged in the middle in the shell 1, and the ventilation mechanism 4 is connected with the ventilation fan 3.
The ventilation mechanism 4 comprises a first fixed block 41, a filter screen 42, a guide pipe 43 and a rotating shaft 44, the first fixed block 41 is fixedly connected to the front side in the shell 1, the filter screen 42 is installed on the lower portion of the front side of the first fixed block 41, the rotating shaft 44 is connected to the rear side of the ventilation fan 3, the guide pipe 43 is symmetrically connected to the upper portion and the lower portion of the rear side in the shell 1, and the guide pipe 43 is located on the rear side of the ventilation fan 3.
The driving component 2 comprises a motor 21, a missing gear 22, a driving wheel 23, a driving toothed belt 24 and a first gear 25, the motor 21 is installed on the rear side of the middle part in the shell 1, the missing gear 22 and the first gear 25 are connected to the front side of an output shaft of the motor 21, the first gear 25 is located on the front side of the missing gear 22, the driving wheel 23 is connected to the rear side of a rotating shaft 44, and the driving toothed belt 24 is connected between the driving wheel 23 and the first gear 25.
Can use this device when people need take a breath in to the vegetable greenhouse, at first place this device in the big-arch shelter, and make the stand pipe 43 be located outside the big-arch shelter, later starter motor 21, motor 21's output shaft can drive and lack gear 22 and first gear 25 and constantly rotate, thereby drive transmission cingulum 24 and drive wheel 23 and constantly rotate, and then drive pivot 44 and the continuous rotation of ventilation fan 3 of both sides about driving, filter screen 42 can filter the air of blowing in, so just can blow into the big-arch shelter with external wind, take a breath in the big-arch shelter, make the vegetables in the big-arch shelter can grow better.
Example 2
On the basis of embodiment 1, as shown in fig. 7 to 12, the cleaning assembly 5 further comprises a cleaning assembly 5, the cleaning assembly 5 comprises a cleaning block 51, a first spring 52, a first chute 53, a connecting rod 54, a second gear 55, a pull rope 56, a first reel 57 and a second reel 58, the first chute 53 is symmetrically connected to the front side of the first fixing block 41 in the left-right direction, the cleaning block 51 is slidably arranged between the first chutes 53, the first spring 52 is connected between the cleaning block 51 and the first chute 53, the connecting rod 54 is connected to the left side of the cleaning block 51, the first reel 57 is installed on the rear side of the middle portion of the left side of the first fixing block 41, the second gear 55 and the second reel 58 are rotatably arranged on the left rear side of the first fixing block 41, the second reel 58 is located on the front side of the second gear 55, the second gear 55 is matched with the gear-lacking gear 22, the pull rope 56 is connected between the second reel 58 and the connecting rod 54, the pull cord 56 is wound around a first reel 57.
Still including sheltering from subassembly 6, shelter from subassembly 6 including baffle 61, third gear 62, rack 63, second spout 64, guide bar 65, second spring 66, wedge 67 and third spring 68, the even interval rotary type of 1 front side of shell is equipped with a plurality of baffles 61, the baffle 61 left and right sides all is equipped with third gear 62, second spout 64 is installed to the 1 front side bilateral symmetry of shell, all slidingtype is equipped with rack 63 in the second spout 64, rack 63 and the meshing of third gear 62, rack 63 and clearance piece 51 cooperation, the equal slidingtype in the bottom left and right sides is equipped with guide bar 65 in shell 1, guide bar 65 is connected with rack 63, all be connected with second spring 66 between guide bar 65 and the shell 1, rack 63 rear side bilateral symmetry is equipped with wedge 67, all be connected with third spring 68 between wedge 67 and the rack 63.
When the missing gear 22 rotates to be meshed with the second gear 55, the missing gear 22 is driven to rotate, so that the second reel 58 is driven to rotate, the connecting rod 54 and the cleaning block 51 are pulled upwards through the pull rope 56, the first spring 52 is compressed, the cleaning block 51 cleans the surface of the filter screen 42, in an initial state, the rack 63 is in contact with the cleaning block 51, the second spring 66 is also in a compressed state, after cleaning moves upwards, the rack 63 and the guide rod 65 are reset upwards under the action of the second spring 66, so that the third gear 62 and the baffle plate 61 are driven to rotate clockwise, when the missing gear 22 rotates to be not meshed with the second gear 55, the cleaning block 51 is reset downwards under the action of the first spring 52, the rack 63 and the guide rod 65 are pushed downwards, the second spring 66 is compressed, so that the third gear 62 and the baffle plate 61 rotate anticlockwise, so that the baffle plate 61 can swing back and forth, make this device can take a breath to the big-arch shelter better.
Still including collecting assembly 7, collecting assembly 7 is including collecting frame 71, first slider 72 and handle 73, and the front side lower part is slidingtype to be equipped with in the shell 1 and collects frame 71, collects the frame 71 rear portion left and right sides and all is connected with first slider 72, and first slider 72 and shell 1 sliding connection collect frame 71 front side rigid coupling and have handle 73.
Still including fixed subassembly 8, fixed subassembly 8 is including third spout 81, second slider 82 and second fixed block 83, and the equal slidingtype of shell 1 lower part left and right sides is equipped with second fixed block 83, and the shell 1 lower part left and right sides all is equipped with third spout 81, and third spout 81 is located the second fixed block 83 outside, all is equipped with second slider 82 in the third spout 81 slidingtype, and second slider 82 cooperates with second fixed block 83.
The cleaned and brushed dust can fall into the collection frame 71, in an initial state, the first sliding block 72 is located on the rear side of the wedge block 67, when people need to take out the collection frame 71, the rack 63 is manually moved upwards to drive the guide rod 65 and the wedge block 67 to move upwards, so that the wedge block 67 does not block the collection frame 71 any more, at the moment, people can take out the collection frame 71 and clean the dust in the collection frame 71, then the rack 63 is loosened, the rack 63, the guide rod 65 and the wedge block 67 can automatically return downwards, finally people manually push the collection frame 71 backwards, when the collection frame 71 is in contact with the wedge block 67, the wedge block 67 can be pushed downwards, the third spring 68 is compressed, after the collection frame 71 passes through the wedge block 67, under the action of the third spring 68, the wedge block 67 can move downwards to return, and the collection frame 71 is blocked again; when people need to fix the device, the second fixing block 83 is pushed downwards manually, so that the second fixing block 83 is in contact with the ground and goes deep, and then the second sliding block 82 is pushed inwards manually, so that the second sliding block 82 blocks the second fixing block 83, the second fixing block 83 cannot move upwards, and the device can be fixed on the ground better.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (8)
1. The utility model provides an intelligent greenhouse ventilation device for agricultural, characterized by, including:
a housing (1);
the driving component (2) is arranged on one side in the shell (1);
the air exchange fan (3) is arranged on two sides in the shell (1);
the ventilation mechanism (4) is arranged in the middle of the shell (1), and the ventilation mechanism (4) is connected with the ventilation fan (3).
2. An intelligent ventilating device for greenhouses as claimed in claim 1, wherein the ventilating mechanism (4) comprises:
the first fixing block (41) is fixedly connected to one side in the shell (1);
the lower part of one side of the first fixed block (41) is provided with a filter screen (42);
the guide pipes (43) are symmetrically connected with one side in the shell (1) up and down, and the guide pipes (43) are positioned on the rear side of the ventilation fan (3);
one sides of the rotating shaft (44) and the ventilating fan (3) are connected with the rotating shaft (44).
3. An intelligent agricultural greenhouse ventilation device as claimed in claim 2, wherein the driving unit (2) comprises:
the motor (21) is arranged on one side of the middle part in the shell (1);
one side of an output shaft of the motor (21) is connected with the gear lack (22) and a first gear (25);
one side of each rotating shaft (44) of the driving wheel (23) is connected with the driving wheel (23);
a transmission toothed belt (24), and a transmission toothed belt (24) is connected between the transmission wheel (23) and the first gear (25).
4. An intelligent agricultural greenhouse ventilation device as claimed in claim 3, further comprising a cleaning assembly (5), wherein the cleaning assembly (5) comprises:
one side of the first fixed block (41) is symmetrically connected with the first sliding chute (53);
the cleaning blocks (51) are arranged between the first sliding grooves (53) in a sliding manner;
the first spring (52) is connected between the cleaning block (51) and the first sliding groove (53);
one side of the cleaning block (51) is connected with the connecting rod (54);
the middle part of one side of the first fixing block (41) is provided with a first reel (57);
the second reel (58), one side of the first fixed block (41) is rotatably provided with a second gear (55) and a second reel (58), and the second gear (55) is matched with the missing gear (22);
the pull rope (56) is connected between the second reel (58) and the connecting rod (54), and the pull rope (56) is wound on the first reel (57).
5. An intelligent agricultural greenhouse ventilation device as claimed in claim 4, further comprising a shielding component (6), wherein the shielding component (6) comprises:
the baffle plates (61), and a plurality of baffle plates (61) are rotationally arranged on one side of the shell (1) at uniform intervals;
the third gear (62) is arranged on each of two sides of the baffle (61);
the second sliding chute (64) is symmetrically arranged on one side of the shell (1);
racks (63) are arranged in the second sliding grooves (64) in a sliding mode, the racks (63) are meshed with the third gear (62), and the racks (63) are matched with the cleaning block (51);
the guide rods (65) are arranged on two sides of the bottom in the shell (1) in a sliding mode, and the guide rods (65) are connected with the rack (63);
the second spring (66) is connected between the guide rod (65) and the shell (1);
the wedge-shaped block (67) is symmetrically and slidably arranged on one side of the rack (63);
and a third spring (68) is connected between the wedge-shaped block (67) and the rack (63).
6. An intelligent agricultural greenhouse ventilation device as claimed in claim 5, further comprising a collection module (7), wherein the collection module (7) comprises:
a collecting frame (71), wherein the lower part of one side in the shell (1) is provided with the collecting frame (71) in a sliding way;
the two sides of the collecting frame (71) are both connected with the first sliding blocks (72), and the first sliding blocks (72) are connected with the shell (1) in a sliding manner;
a handle (73), wherein one side of the collecting frame (71) is fixedly connected with the handle (73).
7. An intelligent agricultural greenhouse ventilation device as claimed in claim 6, further comprising a fixing component (8), wherein the fixing component (8) comprises:
the two sides of the lower part of the shell (1) are both provided with a second fixed block (83) in a sliding way;
the third sliding chutes (81) are formed in two sides of the lower portion of the shell (1);
the second sliding block (82) and the third sliding groove (81) are internally provided with the second sliding block (82) in a sliding manner, and the second sliding block (82) is matched with the second fixed block (83).
8. The intelligent ventilating device for the agricultural greenhouse as claimed in claim 7, wherein rubber is installed on the outer side of the handle (73).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111606507.8A CN114303739B (en) | 2021-12-26 | 2021-12-26 | Greenhouse ventilation device for intelligent agriculture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111606507.8A CN114303739B (en) | 2021-12-26 | 2021-12-26 | Greenhouse ventilation device for intelligent agriculture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114303739A true CN114303739A (en) | 2022-04-12 |
| CN114303739B CN114303739B (en) | 2023-10-24 |
Family
ID=81013705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111606507.8A Active CN114303739B (en) | 2021-12-26 | 2021-12-26 | Greenhouse ventilation device for intelligent agriculture |
Country Status (1)
| Country | Link |
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| CN (1) | CN114303739B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114777250A (en) * | 2022-04-15 | 2022-07-22 | 邓良玉 | Building site heating installation ventilation unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE1009041A6 (en) * | 1995-01-10 | 1996-11-05 | Verlinden Hydrovent Systems | Ventilation shaft for generating a treated airstream flowing out horizontally along the entire length of the shaft |
| JP2002125481A (en) * | 2000-10-30 | 2002-05-08 | Shizuka Akagi | Greenhouse for agrochemical-free culture and its ventilation method |
| CA2550407A1 (en) * | 2005-06-21 | 2006-10-11 | Angelo Milana | Axial flow fan improvements |
| CN107616031A (en) * | 2017-09-27 | 2018-01-23 | 尚许静 | A kind of efficient planting unit of agricultural planting |
| CN210537770U (en) * | 2019-09-24 | 2020-05-19 | 云南省农业科学院园艺作物研究所 | A quick ventilative type intelligent big-arch shelter of taking a breath for farming |
| CN210746358U (en) * | 2019-10-21 | 2020-06-16 | 兴化市鑫润温室设备配件有限公司 | Intelligent agricultural greenhouse ventilation device |
| CN214070901U (en) * | 2020-12-30 | 2021-08-31 | 刘荣鹏 | A trade wind device for green house vent |
-
2021
- 2021-12-26 CN CN202111606507.8A patent/CN114303739B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE1009041A6 (en) * | 1995-01-10 | 1996-11-05 | Verlinden Hydrovent Systems | Ventilation shaft for generating a treated airstream flowing out horizontally along the entire length of the shaft |
| JP2002125481A (en) * | 2000-10-30 | 2002-05-08 | Shizuka Akagi | Greenhouse for agrochemical-free culture and its ventilation method |
| CA2550407A1 (en) * | 2005-06-21 | 2006-10-11 | Angelo Milana | Axial flow fan improvements |
| CN107616031A (en) * | 2017-09-27 | 2018-01-23 | 尚许静 | A kind of efficient planting unit of agricultural planting |
| CN210537770U (en) * | 2019-09-24 | 2020-05-19 | 云南省农业科学院园艺作物研究所 | A quick ventilative type intelligent big-arch shelter of taking a breath for farming |
| CN210746358U (en) * | 2019-10-21 | 2020-06-16 | 兴化市鑫润温室设备配件有限公司 | Intelligent agricultural greenhouse ventilation device |
| CN214070901U (en) * | 2020-12-30 | 2021-08-31 | 刘荣鹏 | A trade wind device for green house vent |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114777250A (en) * | 2022-04-15 | 2022-07-22 | 邓良玉 | Building site heating installation ventilation unit |
| CN114777250B (en) * | 2022-04-15 | 2023-12-22 | 中建三局集团(江苏)有限公司 | Building site heating installation ventilation unit |
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| Publication number | Publication date |
|---|---|
| CN114303739B (en) | 2023-10-24 |
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Effective date of registration: 20230912 Address after: 155100 Fu Li Zhen Dong Hui Cun, Jixian County, Shuangyashan City, Heilongjiang Province Applicant after: Heilongjiang Xufeng Jinqiu Agricultural Technology Co.,Ltd. Address before: 518109 Room 102, building B, No. 19, Guanlan Avenue, Xikeng community, Fucheng street, Longhua District, Shenzhen, Guangdong Applicant before: Wu Shaotian |
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