CN112902422A - External dustproof air outlet and air port angle adjustable device of domestic central air conditioner - Google Patents
External dustproof air outlet and air port angle adjustable device of domestic central air conditioner Download PDFInfo
- Publication number
- CN112902422A CN112902422A CN202110171026.2A CN202110171026A CN112902422A CN 112902422 A CN112902422 A CN 112902422A CN 202110171026 A CN202110171026 A CN 202110171026A CN 112902422 A CN112902422 A CN 112902422A
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- China
- Prior art keywords
- air conditioner
- air outlet
- fixedly connected
- rotating
- buckling plate
- Prior art date
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- 230000007246 mechanism Effects 0.000 claims abstract description 23
- 238000004378 air conditioning Methods 0.000 claims description 10
- 230000000694 effects Effects 0.000 abstract description 17
- 244000309464 bull Species 0.000 abstract description 8
- 238000004140 cleaning Methods 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 239000000428 dust Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
- F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
- F24F13/068—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser formed as perforated walls, ceilings or floors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
- F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
- F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
- F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
- F24F13/15—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre with parallel simultaneously tiltable lamellae
Abstract
The invention relates to the technical field of central air conditioners and discloses a device with a dustproof air outlet and an adjustable air outlet angle, which is externally connected with a household central air conditioner. The household central air conditioner is externally connected with a dustproof air outlet and the air outlet angle is adjustable, a belt which is rotationally connected with the surface of the household central air conditioner is driven to rotate through the rotation of a rotating wheel, an upper buckling plate and a lower buckling plate are driven to be buckled or separated, and then a baffle plate is moved to control the closing of an air outlet of the air conditioner, so that the effect that the air outlet can be closed when the central air conditioner is not used is achieved, the service life of the central air conditioner is prolonged, and the cleaning frequency of an inner machine of the; rotate through the rotary drum and make the kicking block on its surface promote the bull stick swing, the bull stick swing drives slider and shutter plate mechanism and slides on the surface of guide rail under the effect of spring to this effect that realizes that the air conditioner bloies the effect that wind direction changes when wobbling shutter plate mechanism, reaches the suitability that increases the air conditioner, richenes user experience's effect.
Description
Technical Field
The invention relates to the technical field of central air conditioners, in particular to a dustproof air outlet and air outlet angle adjustable device externally connected with a household central air conditioner.
Background
The household central air conditioner has the characteristics of space saving, attractiveness and better comfort, and is gradually popularized in modern families, but the household central air conditioner is expensive in installation price, troublesome in maintenance and cleaning, and needs to be designed and installed according to the decoration style, so that the household central air conditioner has an important effect on the service life and the practicability of the household central air conditioner.
The air outlet of the existing household central air conditioner is of a fixed cover plate structure, when the air conditioner is not used at ordinary times, the air outlet of the cover plate is always in an open state, so that dust impurities can float into the cover plate and be attached to a filter screen inside the air conditioner, the refrigerating and heating effects of the air conditioner are deteriorated after a long time, bacteria are easy to breed, the blown air has peculiar smell, and unnecessary troubles are brought to users, and the problem of poor adaptability is caused because the opening size of the fixed cover plate is fixed, the air conditioner can not be blown to be concentrated at one position according to the actual use condition, and the air outlet can be closed, so that the dust can not influence components inside the air conditioner, and the air outlet can realize the adjustment of the wind direction through a movable louver mechanism, the user experience is improved.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a dustproof air outlet externally connected with a household central air conditioner and an air outlet angle-adjustable device, which has the advantages that the air outlet can be closed when the central air conditioner is not placed, dust is prevented from entering the air conditioner to influence internal components, and the angle of the air outlet can be changed according to the use requirement, so that the service life of the air conditioner is prolonged, and the use experience of users is increased.
(II) technical scheme
In order to realize that the air outlet of the central air conditioner can be closed when the central air conditioner is not used, dust is prevented from entering the air conditioner to influence internal components, and the angle of the air outlet can be changed according to the use requirement, thereby achieving the purposes of prolonging the service life of the air conditioner and increasing the use experience of a user, the invention provides the following technical scheme: a household central air conditioner external dustproof air outlet and air outlet angle adjustable device comprises a ceiling wall surface, wherein an air conditioner air outlet is arranged on the surface of the ceiling wall surface, a rotating wheel is rotatably connected inside the ceiling wall surface, a belt is arranged on the surface of the rotating wheel, an upper buckling plate is fixedly connected to the surface of the belt, a lower buckling plate is fixedly connected to the surface of the belt, a baffle is fixedly connected to the surface of the lower buckling plate, a guide rail is fixedly connected inside the ceiling wall surface, a spring is fixedly connected to the surface of the guide rail, a sliding block is slidably connected to the surface of the guide rail, a louver blade mechanism is fixedly connected to the surface of the sliding block, a fixed block is fixedly connected inside the ceiling wall surface, a rotating rod is rotatably connected to the surface of the fixed block, a rotating cylinder is rotatably connected inside the ceiling wall surface, the axis of the rotating drum is fixedly connected with a rotating shaft.
Preferably, the number of the rotating wheels is six, the six rotating wheels are consistent in size and specification, the number of the belt is one, and the belt is rotatably connected to the surfaces of the rotating wheels.
Preferably, the surfaces of the upper buckling plate and the lower buckling plate are provided with mutually meshed clamping teeth, the surfaces of the upper buckling plate and the lower buckling plate are fixedly connected with baffle plates, and the size of each baffle plate is matched with the size of the air outlet of the air conditioner.
Preferably, one end of the spring is fixedly connected to the surface of the guide rail, and the other end of the spring is fixedly connected to the surface of the sliding block, and the surface of the sliding block is provided with gear teeth.
Preferably, one end of the rotating rod is provided with gear teeth meshed with the surface of the sliding block, the rotating rod is meshed with the sliding block, and the other end of the rotating rod is connected to the surface of the rotating cylinder in a sliding mode.
Preferably, the two rotating drums are axisymmetrical with respect to a center line of the air-conditioning outlet, and both ends of the rotating shaft are fixedly connected to the surfaces of the rotating drums, respectively.
Preferably, there are two of the sliding blocks and two of the louver mechanisms, and the two of the sliding blocks and the two of the louver mechanisms are respectively symmetrical about a central axis of the air conditioner air outlet.
Preferably, the total width and the stroke of the blades of the louver mechanism are matched with the swinging stroke of the rotating rod.
(III) advantageous effects
Compared with the prior art, the invention provides a dustproof air outlet and air outlet angle adjustable device externally connected with a household central air conditioner, which has the following beneficial effects:
1. this external dustproof air outlet of domestic central air conditioning and wind gap angularly adjustable device rotates the belt that drives its surface rotation connection through the runner and rotates to drive lock board and lower lock board lock or separation, and then make the baffle remove and control closing of air conditioner air outlet, reach the effect that the air outlet can be closed when central air conditioning does not use, thereby extension central air conditioning's life slows down the abluent frequency of air conditioner internal unit.
2. This external dustproof air outlet of domestic central air conditioning and wind gap angularly adjustable device rotates the kicking block that makes its surface through the rotary drum and promotes the bull stick swing, and the bull stick swing drives slider and shutter plate mechanism and slides under the effect of spring at the surface of guide rail to this realizes that the air conditioner bloies the effect of wind direction change when wobbling shutter plate mechanism, reaches the suitability that increases the air conditioner, enriches user experience's effect.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of a mechanism associated with the rotating rod of the present invention;
FIG. 3 is a schematic structural diagram of a mechanism related to a rotary wheel according to the present invention;
FIG. 4 is a schematic top view of the mechanism associated with the drum of the present invention;
in the figure: 1. a suspended ceiling wall surface; 2. an air outlet of the air conditioner; 3. a rotating wheel; 4. a belt; 5. an upper buckling plate; 6. a lower buckling plate; 7. a baffle plate; 8. a guide rail; 9. a spring; 10. a slider; 11. a louver mechanism; 12. a fixed block; 13. a rotating rod; 14. a rotating drum; 15. a top block; 16. a rotating shaft;
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. 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, a device with an external dustproof air outlet and an adjustable air outlet angle for a household central air conditioner comprises a ceiling wall surface 1, an air conditioner air outlet 2 is arranged on the surface of the ceiling wall surface 1, rotating wheels 3 are rotatably connected inside the ceiling wall surface 1, the number of the rotating wheels 3 is six, the six rotating wheels 3 are consistent in size and specification, one belt 4 is arranged, the belt 4 is rotatably connected to the surface of the rotating wheel 3, a belt 4 is arranged on the surface of the rotating wheel 3, an upper buckling plate 5 is fixedly connected to the surface of the belt 4, clamping teeth meshed with each other are arranged on the surfaces of the upper buckling plate 5 and a lower buckling plate 6, a baffle 7 is fixedly connected to the surfaces of the upper buckling plate 5 and the lower buckling plate 6, the size of the baffle 7 is matched with the size of the air conditioner air outlet 2, the rotating wheels 3 drive the belt 4 rotatably connected to the surface to rotate, and drive the upper buckling plate 5, and then make baffle 7 remove to control closing of air conditioner air outlet 2, reach the effect that the air outlet can be closed when central air conditioning does not use to the life of extension central air conditioning slows down the abluent frequency of air conditioner internal unit.
The surface of the belt 4 is fixedly connected with a lower buckling plate 6, the surface of the lower buckling plate 6 is fixedly connected with a baffle 7, the interior of the suspended ceiling wall surface 1 is fixedly connected with a guide rail 8, the surface of the guide rail 8 is fixedly connected with a spring 9, one end of the spring 9 is fixedly connected to the surface of the guide rail 8, the other end of the spring 9 is fixedly connected to the surface of a sliding block 10, the surface of the sliding block 10 is provided with gear teeth, the surface of the guide rail 8 is slidably connected with a sliding block 10, the sliding block 10 and a louver mechanism 11 are respectively symmetrical about a central line axis of the air-conditioning air outlet 2, the surface of the sliding block 10 is fixedly connected with a louver mechanism 11, the total width and the stroke of blades of the louver mechanism 11 are matched with the swinging stroke of a rotating rod 13, the interior of the suspended ceiling wall surface 1 is fixedly connected with a fixed block 12, the bull stick 13 is connected for the meshing with slider 10, the other end sliding connection of bull stick 13 is on the surface of rotary drum 14, the inside rotation of furred ceiling wall 1 is connected with rotary drum 14, rotary drum 14 has two central line axisymmetries about air conditioner air outlet 2 each other, and fixed connection is on the surface of rotary drum 14 respectively at the both ends of pivot 16, the fixed surface of rotary drum 14 is connected with kicking block 15, the fixedly connected with pivot 16 of axle center department of rotary drum 14, it promotes the swing of bull stick 13 to rotate the kicking block 15 that makes its surface through rotary drum 14, the swing of bull stick 13 drives slider 10 and shutter mechanism 11 and slides at the surface of guide rail 8 under the effect of spring 9, with this effect that realizes the air conditioner and bloies the effect that the wind direction changes when wobbling shutter mechanism 11, reach the suitability that increases the air conditioner, enrich user.
When the central air conditioner is not used, the air outlet 2 of the air conditioner needs to be sealed, the specific method is that a rotating wheel 3 connected in the suspended ceiling wall surface 1 is driven to rotate, the rotating wheel 3 rotates to drive a belt 4 connected with the surface of the rotating wheel to rotate, the belt 4 rotates to drive an upper buckling plate 5 fixedly connected with the surface of the belt to move downwards, a lower buckling plate 6 moves upwards and is buckled and sealed through clamping teeth arranged on the surfaces of the upper buckling plate 5 and the lower buckling plate 6, and a baffle 7 fixedly connected with the surfaces of the upper buckling plate 5 and the lower buckling plate 6 is driven to move along with the upper buckling plate and the lower buckling plate 6 and blocks the air outlet 2 of the air conditioner, so that the air outlet 2 of.
When the central air conditioner is needed to be used, the rotating wheel 3 which is rotatably connected to the inner portion of the suspended ceiling wall surface 1 is rotated in the reverse direction, the rotating wheel 3 rotates to drive the belt 4 which is rotatably connected to the surface of the suspended ceiling wall surface to rotate, the belt 4 rotates to drive the upper buckling plate 5 which is fixedly connected to the surface of the belt to move upwards, and the lower buckling plate 6 moves downwards to separate the buckling plates, so that the baffle 7 which is fixedly connected to the surfaces of the upper buckling plate 5 and the lower buckling plate 6 moves in the reverse direction, the air conditioner air outlet 2 is opened, and the air conditioner air outlet 2 is opened.
When the air outlet angle of the central air conditioner needs to be adjusted, at the moment, the rotary drums 14 fixedly connected to two ends of the rotary shaft 16 are driven by external force to rotate, the rotary drums 14 rotate to drive the ejector blocks 15 fixedly connected to the surfaces of the rotary drums to rotate, the ejector blocks 15 rotate and are in intermittent contact with the rotary rods 13 slidably connected to the surfaces of the rotary drums 14, the rotary rods 13 swing around the centers of the fixed blocks 12 arranged inside the ceiling wall surface 1, the rotary rods 10 connected with the rotary rods in a meshed mode are driven to slide up and down along the surfaces of the guide rails 8 under the action of the springs 9 fixedly connected with the slide blocks 10, the slide blocks 10 slide up and down to drive the louver mechanisms 11 fixedly connected to slide up and down, the air direction passing through the louver mechanisms 11 is changed, and the effect of adjusting the air direction of the central.
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 (8)
1. The utility model provides an external dustproof air outlet of domestic central air conditioning and wind gap angularly adjustable device, includes furred ceiling wall (1), its characterized in that: the air conditioner is characterized in that an air conditioner air outlet (2) is arranged on the surface of the ceiling wall surface (1), a rotating wheel (3) is rotatably connected inside the ceiling wall surface (1), a belt (4) is arranged on the surface of the rotating wheel (3), an upper buckling plate (5) is fixedly connected to the surface of the belt (4), a lower buckling plate (6) is fixedly connected to the surface of the belt (4), a baffle (7) is fixedly connected to the surface of the lower buckling plate (6), a guide rail (8) is fixedly connected inside the ceiling wall surface (1), a spring (9) is fixedly connected to the surface of the guide rail (8), a sliding block (10) is slidably connected to the surface of the guide rail (8), a louver blade mechanism (11) is fixedly connected to the surface of the sliding block (10), a fixed block (12) is fixedly connected inside the ceiling wall surface (1), and a rotating rod (13) is rotatably connected to, the suspended ceiling wall surface is characterized in that a rotary drum (14) is rotatably connected inside the suspended ceiling wall surface (1), a top block (15) is fixedly connected to the surface of the rotary drum (14), and a rotating shaft (16) is fixedly connected to the axis of the rotary drum (14).
2. The external dustproof air outlet and air inlet angle adjustable device of the household central air conditioner as claimed in claim 1, is characterized in that: the number of the rotating wheels (3) is six, the six rotating wheels (3) are consistent in size and specification, the number of the belt (4) is one, and the belt (4) is rotatably connected to the surface of the rotating wheels (3).
3. The external dustproof air outlet and air inlet angle adjustable device of the household central air conditioner as claimed in claim 1, is characterized in that: the surface of the upper buckling plate (5) and the surface of the lower buckling plate (6) are provided with clamping teeth which are meshed with each other, the surfaces of the upper buckling plate (5) and the lower buckling plate (6) are fixedly connected with a baffle (7), and the size of the baffle (7) is matched with that of the air outlet (2) of the air conditioner.
4. The external dustproof air outlet and air inlet angle adjustable device of the household central air conditioner as claimed in claim 1, is characterized in that: one end of the spring (9) is fixedly connected to the surface of the guide rail (8) and the other end of the spring is fixedly connected to the surface of the sliding block (10), and gear teeth are arranged on the surface of the sliding block (10).
5. The external dustproof air outlet and air inlet angle adjustable device of the household central air conditioner as claimed in claim 1, is characterized in that: one end of the rotating rod (13) is provided with gear teeth meshed with the surface of the sliding block (10), the rotating rod (13) is meshed with the sliding block (10), and the other end of the rotating rod (13) is connected to the surface of the rotating cylinder (14) in a sliding mode.
6. The external dustproof air outlet and air inlet angle adjustable device of the household central air conditioner as claimed in claim 1, is characterized in that: the two rotating drums (14) are axisymmetric with respect to the center line of the air-conditioning outlet (2), and two ends of the rotating shaft (16) are respectively and fixedly connected to the surfaces of the rotating drums (14).
7. The external dustproof air outlet and air inlet angle adjustable device of the household central air conditioner as claimed in claim 1, is characterized in that: the two sliding blocks (10) and the two louver mechanisms (11) are respectively symmetrical about a central axis of the air outlet (2) of the air conditioner.
8. The external dustproof air outlet and air inlet angle adjustable device of the household central air conditioner as claimed in claim 1, is characterized in that: the total width and the stroke of the blades of the louver mechanism (11) are matched with the swinging stroke of the rotating rod (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110171026.2A CN112902422B (en) | 2021-02-08 | 2021-02-08 | External dustproof air outlet of domestic central air conditioning and wind gap angularly adjustable device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110171026.2A CN112902422B (en) | 2021-02-08 | 2021-02-08 | External dustproof air outlet of domestic central air conditioning and wind gap angularly adjustable device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112902422A true CN112902422A (en) | 2021-06-04 |
| CN112902422B CN112902422B (en) | 2022-09-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110171026.2A Active CN112902422B (en) | 2021-02-08 | 2021-02-08 | External dustproof air outlet of domestic central air conditioning and wind gap angularly adjustable device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112902422B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4391575B1 (en) * | 2008-09-30 | 2009-12-24 | 日立アプライアンス株式会社 | Embedded ceiling air conditioner |
| CN207635578U (en) * | 2017-12-23 | 2018-07-20 | 深圳市众智空调设备有限公司 | A kind of dust guard of wall-hanging indoor unit of air conditioner |
| CN208704037U (en) * | 2018-09-11 | 2019-04-05 | 中筑科技股份有限公司 | A kind of adjustable central air-conditioning of wind direction at air outlet |
| CN212057566U (en) * | 2020-04-18 | 2020-12-01 | 无锡德顺空调设备有限公司 | Intelligent control device for air outlet of central air conditioner shutter |
| CN112050303A (en) * | 2020-09-29 | 2020-12-08 | 陕西钧诚建鑫机电工程有限公司 | Central air conditioner convenient to clearance air outlet dust |
-
2021
- 2021-02-08 CN CN202110171026.2A patent/CN112902422B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4391575B1 (en) * | 2008-09-30 | 2009-12-24 | 日立アプライアンス株式会社 | Embedded ceiling air conditioner |
| CN207635578U (en) * | 2017-12-23 | 2018-07-20 | 深圳市众智空调设备有限公司 | A kind of dust guard of wall-hanging indoor unit of air conditioner |
| CN208704037U (en) * | 2018-09-11 | 2019-04-05 | 中筑科技股份有限公司 | A kind of adjustable central air-conditioning of wind direction at air outlet |
| CN212057566U (en) * | 2020-04-18 | 2020-12-01 | 无锡德顺空调设备有限公司 | Intelligent control device for air outlet of central air conditioner shutter |
| CN112050303A (en) * | 2020-09-29 | 2020-12-08 | 陕西钧诚建鑫机电工程有限公司 | Central air conditioner convenient to clearance air outlet dust |
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| Publication number | Publication date |
|---|---|
| CN112902422B (en) | 2022-09-16 |
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Effective date of registration: 20240411 Address after: 528000, No. C-23, 6th Lane, Shatou Road, Damen Neighborhood Committee, Shunde District, Foshan City, Guangdong Province Patentee after: Foshan Aidi Ventilation and Refrigeration Equipment Manufacturing Co.,Ltd. Country or region after: China Address before: Room 525, 5th Floor, Jiangning Science and Technology Financial Center, No. 391, Tianyuan East Road, Jiangning District, Nanjing City, Jiangsu Province, 211199 Patentee before: Nanjing kuaizhuan Technology Co.,Ltd. Country or region before: China |
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