CN210663229U - Top type replacement fresh air purifier - Google Patents
Top type replacement fresh air purifier Download PDFInfo
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- CN210663229U CN210663229U CN201921760790.8U CN201921760790U CN210663229U CN 210663229 U CN210663229 U CN 210663229U CN 201921760790 U CN201921760790 U CN 201921760790U CN 210663229 U CN210663229 U CN 210663229U
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The utility model provides a top formula replacement new trend air purifier, relates to air purification technical field, installs in the outer hanging machine of air conditioner and the wall hole of wearing that indoor intercommunication was reserved, including fixing device, updraft ventilator, filter equipment. The wall hole must be reserved in the house building process for communicate indoor and air conditioner external hanging machine, this device is installed in this some wall holes in house, can extract outdoor air and filter the back indoor, need not reform transform original indoor structure, and work load and cost are all lower. The device is small in size, convenient to install, low in overall power consumption and low in noise, the main source of power consumption is only consumed for extracting fresh air by the air extracting device, and the device adopts multi-stage multi-layer filtering and belongs to a fresh air purification type, so that not only is the air filtering efficiency high, but also indoor and outdoor air circulation can be realized.
Description
Technical Field
The utility model relates to an air purification technical field, concretely relates to top formula replacement new trend air purifier.
Background
The air purifier is a healthy household appliance product, can effectively improve the indoor air quality by filtering inhalable particles and gases which are harmful to human bodies in the air, and creates a healthy and clean indoor living environment for people.
In recent years, there are many types and styles of air purifiers, and the following two types are commonly used: one is an indoor air purifier which is placed in any indoor space and used for treating indoor original air to purify smoke, particles, dust and the like in the indoor air, but the purification mode needs to seal doors and windows to obtain a good purification effect, so that the long-time purification in the working mode can reduce the indoor oxygen content, and the health of people can be influenced to a certain degree; the other kind is new trend air purifier, except can handling indoor pollution's air, can also pass through to outdoor filtration with adsorb the fresh and clean air of indoor transport, but this kind of new trend air purifier has one kind to adopt the new trend system, the price is high, the installation is complicated, it punches to need the furred ceiling to lay tuber pipe and a plurality of wall, often can only install when the house is fitment, the later stage transformation degree of difficulty is very big, another kind of new trend air purifier is window formula new trend clarifier, need to reform transform the window frame or remove partial area on window glass and install ventilation purification device additional, this kind of new trend purifier compares new trend system installation simpler, but the structure is complicated, the cost is higher, need to change work such as glass or transformation window frame.
Therefore, the new trend purifies the suitability higher for indoor purification, but current new trend purifier need reform transform original indoor structure, and the work load and the cost that cause are all higher.
Disclosure of Invention
In view of this, there is a need for a top type fresh air replacement purifier that can be installed and used without modifying the original indoor structure.
A top type replacement fresh air purifier is installed in a wall penetrating hole reserved for indoor communication of an air conditioner external hanging machine, and comprises a fixing device, an air exhaust device and a filtering device, wherein the fixing device is connected with the air exhaust device, and the air exhaust device is connected with the filtering device; the fixing device comprises a connecting cylinder and a fixing ring disc, one end of the connecting cylinder is connected with the fixing ring disc, the connecting cylinder and the fixing ring disc are coaxial and concentric, the other end of the connecting cylinder is connected with the air draft device, the connecting cylinder is sleeved on the filtering device, two ends of the connecting cylinder are both open, the diameter of the connecting cylinder is not larger than that of the through-wall hole, and the outer diameter of the fixing ring disc is larger than that of the through-wall hole, so that after the connecting cylinder is inserted into the through-wall hole, the fixing ring disc can be attached to and fixed with the wall surface around the through-wall hole; the filtering device comprises a first filtering component, a second filtering component, a third filtering component and a fourth filtering component which are sequentially connected end to end, and the first filtering component is also detachably connected with the air draft device.
Preferably, a buffer device is arranged between the connecting cylinder and the outer wall of the filtering device, the buffer device is a flexible elastic piece, and two ends of the buffer device are respectively in close contact with the inner wall of the connecting cylinder and the outer wall of the filtering device.
Preferably, buffer is "chevron shape" flexure strip, and buffer includes first piece and second piece of structure symmetry, and first piece is the arc flexure strip, and first one end fixed connection, the other end of first piece and second piece set up back to the back mutually, and the link setting of first piece and second piece is with activity stay cord, and the tip of activity stay cord is located the outside of connecting cylinder.
Preferably, one end of each of the first filtering component, the second filtering component, the third filtering component and the fourth filtering component can be detachably connected with the air draft device, the first filtering component, the second filtering component, the third filtering component and the fourth filtering component can be detachably connected with each other in pairs at will, namely, the first filtering component at the head end can be detached and detachably connected with the fourth filtering component, and the second filtering component can be moved to the head end and detachably connected with the air draft device, so that any one of the filtering components can be replaced or cleaned.
Preferably, the air draft device comprises a first connecting sleeve, the axial flow fan and a connecting ring disc, the first connecting sleeve is sleeved outside the axial flow fan, the first connecting sleeve and the axial flow fan are coaxial and concentric and are relatively fixed, one end of the first connecting sleeve is detachably connected with the first filtering assembly, the other end of the first connecting sleeve is in screw connection with the connecting ring disc, the first connecting sleeve and the connecting ring disc are coaxial and concentric, the outer diameter of the connecting ring disc is larger than that of the first connecting sleeve, the edge of the connecting ring disc is in screw connection with the other end of the connecting cylinder, the connecting cylinder is sleeved outside the first connecting sleeve and is not in contact with the first connecting sleeve, and therefore the first connecting sleeve can be conveniently detached from the connecting cylinder.
Preferably, a filling layer is arranged between the first connecting sleeve and the axial flow fan so as to seal and fix the first connecting sleeve and the axial flow fan relatively.
Preferably, the first filter assembly comprises a second connecting sleeve, a first filter layer, a second filter layer and a third filter layer which are arranged end to end in parallel, and the second connecting sleeve is sleeved on the outer walls of the first filter layer, the second filter layer and the third filter layer.
Preferably, the first filter layer comprises a fastening ring and a filter screen, the filter screen covers the fastening ring, the inner circle of the fastening ring is completely covered by the filter screen, the surface area of the filter screen is larger than the outer circle area of the fastening ring, the edge of the filter screen is located between the fastening ring and the second connecting sleeve, the filter screen is clamped and fixed through the fastening ring and the second connecting sleeve, the second connecting sleeve is sleeved on the fastening ring, and the gap between the second connecting sleeve and the fastening ring is smaller than the thickness of the filter screen.
Preferably, the second connecting sleeve is in a shape of a reducing cylinder, the inner diameter of the second connecting sleeve is gradually reduced from one end far away from the axial flow fan to one end close to the axial flow fan, and the maximum diameter of the second connecting sleeve is larger than the outer diameter of the fastening ring, so that the fastening ring can enter from the maximum diameter of the second connecting sleeve and is fixed at the minimum diameter of the second connecting sleeve.
Preferably, the second filter layer and the third filter layer are the same as the first filter layer; the structures of the second filtering component, the third filtering component and the fourth filtering component are the same as those of the first filtering component, and the filtering materials adopted by the filtering net of the first filtering component, the filtering net of the second filtering component, the filtering net of the third filtering component and the filtering net of the fourth filtering component are different.
The utility model adopts the above technical scheme, its beneficial effect lies in: the wall hole must be reserved in the house building process for communicate indoor and air conditioner external hanging machine, this device is installed in this some wall holes in house, can extract outdoor air and filter the back indoor, need not reform transform original indoor structure, and work load and cost are all lower. The device is small in size, convenient to install, low in overall power consumption and low in noise, the main source of power consumption is only consumed for extracting fresh air by the air extracting device, and the device adopts multi-stage multi-layer filtering and belongs to a fresh air purification type, so that not only is the air filtering efficiency high, but also indoor and outdoor air circulation can be realized.
Drawings
Fig. 1 is a schematic cross-sectional view of a top-type fresh air replacement purifier.
Fig. 2 is a partially enlarged view of a in fig. 1.
Fig. 3 is a partially enlarged view of B in fig. 1.
Fig. 4 is a schematic structural diagram of the top type fresh air replacement purifier except for the fixing device and the connecting ring disc.
FIG. 5 is a schematic view of the first coupling sleeve
Fig. 6 is a schematic structural view of the second connecting sleeve and the fastening ring in a connecting state.
Fig. 7 is a use state diagram of the top type fresh air replacement purifier.
Fig. 8 is a schematic cross-sectional view of a top type fresh air replacement purifier according to another embodiment.
Fig. 9 is a partial enlarged view of C in fig. 8.
In the figure: the top type fresh air replacement purifier comprises a top type fresh air replacement purifier 10, a fixing device 20, a connecting cylinder 21, a fixing ring disc 22, an air exhaust device 30, a first connecting sleeve 31, an axial flow fan 32, a connecting ring disc 33, a filling layer 34, a filtering device 40, a first filtering component 41, a second connecting sleeve 411, a first filtering layer 412, a fastening ring 4121, a filtering net 4122, a second filtering layer 413, a third filtering layer 414, a second filtering component 42, a third filtering component 43, a fourth filtering component 44, a buffering device 50, an upper half piece 51, a lower half piece 52, a movable pull rope 53 and a wall body 100.
Detailed Description
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Referring to fig. 1, 2, 4 and 7, an embodiment of the present invention provides a top type replacement fresh air purifier 10, which is installed in a wall-through hole reserved for indoor communication of an air conditioner external hanging machine, and comprises a fixing device 20, an air draft device 30 and a filtering device 40, wherein the fixing device 20 is connected with the air draft device 30, and the air draft device 30 is connected with the filtering device 40; the fixing device 20 comprises a connecting cylinder 21 and a fixing ring disc 22, one end of the connecting cylinder 21 is connected with the fixing ring disc 22, the connecting cylinder 21 and the fixing ring disc 22 are coaxial and concentric, the other end of the connecting cylinder 21 is connected with the air draft device 30, the connecting cylinder 21 is sleeved on the filtering device 40, two ends of the connecting cylinder 21 are open, the diameter of the connecting cylinder 21 is not larger than that of the through-wall hole, the outer diameter of the fixing ring disc 22 is larger than that of the through-wall hole, and after the connecting cylinder 21 is inserted into the through-wall hole, the fixing ring disc 22 can be attached, connected and fixed with the wall surface around the through-wall hole; the filter device 40 comprises a first filter assembly 41, a second filter assembly 42, a third filter assembly 43 and a fourth filter assembly 44 which are connected end to end in sequence, and the first filter assembly 41 is also detachably connected with the air exhaust device 30. The air draft device 30 is close to the outdoor, the filtering device 40 is close to the indoor, and the fixing device 20 is designed in a mode that the fixing ring disc 22 is located indoors, so that the device is convenient to install.
Referring to fig. 1 and 3, a buffer device 50 is further disposed between the connecting cylinder 21 and the outer wall of the filtering device 40, the buffer device 50 is a flexible elastic member, and two ends of the buffer device 50 are respectively in close contact with the inner wall of the connecting cylinder 21 and the outer wall of the filtering device 40.
Referring to fig. 1 and 3, further, the buffer device 50 is a "herringbone" elastic sheet, the buffer device 50 includes an upper half sheet 51 and a lower half sheet 52 which are symmetrical in structure, the upper half sheet 51 is an arc-shaped elastic sheet, one end of the upper half sheet 51 is fixedly connected with one end of the lower half sheet 52, the other end is arranged opposite to the other end, a movable pull rope 53 is arranged at the connecting end of the upper half sheet 51 and the lower half sheet 52, the end of the movable pull rope 53 is located outside the connecting cylinder 21, so that the buffer device 50 is taken out by pulling the movable pull rope 53, and the connecting cylinder 21 and the first connecting sleeve 31 are convenient to detach.
Referring to fig. 1, further, one end of each of the first filtering component 41, the second filtering component 42, the third filtering component 43, and the fourth filtering component 44 can be detachably connected to the air draft device 30, and any two of the first filtering component 41, the second filtering component 42, the third filtering component 43, and the fourth filtering component 44 can be detachably connected to each other end to end, that is, the first filtering component 41 at the head end can be detached and detachably connected to the fourth filtering component 44, and the second filtering component 42 can be moved to the head end and detachably connected to the air draft device 30, so as to replace or clean any one of the filtering components.
Referring to fig. 1, 5 and 7, further, the air draft device 30 includes a first connection sleeve 31, an axial flow fan 32 and a connection ring disc 33, the first connection sleeve 31 is sleeved outside the axial flow fan 32, and the first connection sleeve 31 and the axial flow fan 32 are coaxial and concentric and are relatively fixed, one end of the first connection sleeve 31 is detachably connected to the first filter assembly 41, the other end of the first connection sleeve 31 is connected to a screw of the connection ring disc 33, the first connection sleeve 31 and the connection ring disc 33 are coaxial and concentric, an outer diameter of the connection ring disc 33 is larger than an outer diameter of the first connection sleeve 31, an edge of the connection ring disc 33 is connected to the other end of the connection cylinder 21 by a screw, and the connection cylinder 21 is sleeved outside the first connection sleeve 31 and is not in contact with the first connection sleeve 31, so that the first connection sleeve 31 is detached from the connection cylinder 21. In the present embodiment, a 4cm two-motor booster fan is used as the axial flow fan 32.
Referring to fig. 1 and 3, further, a buffering device 50 is disposed between the connecting cylinder 21 and the first connecting sleeve 31 to play a role of buffering and limiting, so that the filtering device 40 is stable relative to the fixing device 20, and the third filtering component 43 and the fourth filtering component 44 away from the axial flow fan 32 are prevented from eccentrically shaking when the axial flow fan 32 sucks air.
Referring to fig. 1, a filling layer 34 is further disposed between the first connecting sleeve 31 and the axial flow fan 32 to seal and fix the first connecting sleeve 31 and the axial flow fan 32, and the filling layer 34 is made of foam rubber to seal and fix the first connecting sleeve 31 and the axial flow fan 32.
Referring to fig. 1 and fig. 6, further, the first filter assembly 41 includes a second connecting sleeve 411, and a first filter layer 412, a second filter layer 413, and a third filter layer 414 that are arranged end to end in parallel, where the second connecting sleeve 411 is sleeved on outer walls of the first filter layer 412, the second filter layer 413, and the third filter layer 414.
Referring to fig. 1, further, the first filter layer 412 includes a fastening ring 4121 and a filter screen 4122, the filter screen 4122 covers the fastening ring 4121, the filter screen 4122 completely covers an inner circle of the fastening ring 4121, a surface area of the filter screen 4122 is larger than an outer circle area of the fastening ring 4121, an edge of the filter screen 4122 is located between the fastening ring 4121 and the second connecting sleeve 411 to clamp and fix the filter screen 4122 through the fastening ring 4121 and the second connecting sleeve 411, the second connecting sleeve 411 is sleeved on the fastening ring 4121, and a gap between the second connecting sleeve 411 and the fastening ring 4121 is smaller than a thickness of the filter screen 4122, so that the second connecting sleeve 411 and the fastening ring 4121 form an interference fit, and the gap is 1-2 mm.
Further, the second connection sleeve 411 is in a shape of a variable diameter cylinder, the inner diameter of the second connection sleeve 411 gradually decreases from the end far away from the axial flow fan 32 to the end close to the axial flow fan 32, and the maximum diameter of the second connection sleeve 411 is larger than the outer diameter of the fastening ring 4121, so that the fastening ring 4121 enters from the maximum diameter of the second connection sleeve 411 and is fixed at the minimum diameter of the second connection sleeve 411.
Referring to fig. 1, further, the second filter layer 413 and the third filter layer 414 are the same as the first filter layer 412; the structures of the second filter component 42, the third filter component 43 and the fourth filter component 44 are the same as those of the first filter component 41, and the filter screen of the first filter component 41, the filter screen of the second filter component 42, the filter screen of the third filter component 43 and the filter screen of the fourth filter component 44 are made of different filter materials, so as to filter harmful gases in the air, such as dust, smoke, odor, benzene aldehydes and the like.
Further, the other end of first adapter sleeve 31 is provided with the external screw thread, the one end of every second adapter sleeve 411 all is provided with the external screw thread, the other end of every second adapter sleeve 411 all is provided with the internal thread, all above-mentioned internal threads all with above-mentioned all external screw thread looks adaptations, so that the other end of first adapter sleeve 31 homoenergetic can with the one end threaded connection of every second adapter sleeve 411, the other end homoenergetic of every second adapter sleeve 411 can with the one end threaded connection of another second adapter sleeve 411, and then convenient to detach installs, even if change or wash the filter screen.
Referring to fig. 8 and 9, in another embodiment, screw holes are formed on the connecting cylinder 21 and the connecting ring plate 33 to screw the connecting cylinder 21 and the connecting ring plate 33, and screw holes are also formed on the first connecting sleeve 31 to screw the first connecting sleeve 31 and the connecting ring plate 33.
When the device is used specifically, the connecting cylinder 21 connected with the air draft device 30 and the filtering device 40 is inserted into a through-wall hole from the indoor space, the fixing ring disc 22 is fixed on the periphery of the through-wall hole and located on an indoor wall in a screw or bonding mode, the air draft device 30 and the filtering device 40 are fixed, the axial flow fan 32 is opened, the axial flow fan 32 extracts outdoor air and conveys the air to the filtering device 40, the filter screen of the first filtering component 41, the filter screen of the second filtering component 42, the filter screen of the third filtering component 43 and the filter screen of the fourth filtering component 44 are filtered layer by layer, and filtered fresh air is conveyed to the indoor space. After the filter screen of the first filter assembly 41, the filter screen of the second filter assembly 42, the filter screen of the third filter assembly 43 and the filter screen of the fourth filter assembly 44 close to the axial flow fan 32 lose filtering capacity, the filter screen newly installed in each filter assembly is ejected out and discarded from one end close to the fan.
When the filter screen needs to be replaced, the fourth filter assembly 44, the third filter assembly 43, the second filter assembly 42 and the second connecting sleeve 411 of the first filter assembly 41 are screwed in sequence, so that the filter assemblies are separated.
In this scheme, fixing device 20's the mode that sets up makes installation top formula replacement new trend air purifier 10 convenient, can increase and decrease filtering component according to filterable needs.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides a top formula replacement new trend air purifier installs in the wall hole of wearing of air conditioner outer hanging machine and indoor intercommunication reservation, its characterized in that: the air purifier comprises a fixing device, an air draft device and a filtering device, wherein the fixing device is connected with the air draft device, and the air draft device is connected with the filtering device; the fixing device comprises a connecting cylinder and a fixing ring disc, one end of the connecting cylinder is connected with the fixing ring disc, the connecting cylinder and the fixing ring disc are coaxial and concentric, the other end of the connecting cylinder is connected with the air draft device, the connecting cylinder is sleeved on the filtering device, two ends of the connecting cylinder are both open, the diameter of the connecting cylinder is not larger than that of the through-wall hole, and the outer diameter of the fixing ring disc is larger than that of the through-wall hole, so that after the connecting cylinder is inserted into the through-wall hole, the fixing ring disc can be attached to and fixed with the wall surface around the through-wall hole; the filtering device comprises a first filtering component, a second filtering component, a third filtering component and a fourth filtering component which are sequentially connected end to end, and the first filtering component is also detachably connected with the air draft device.
2. The top replacement fresh air purifier of claim 1, wherein: and a buffer device is arranged between the connecting cylinder and the outer wall of the filtering device, the buffer device is a flexible elastic piece, and two ends of the buffer device are respectively in close contact with the inner wall of the connecting cylinder and the outer wall of the filtering device.
3. The top replacement fresh air purifier of claim 2, wherein: buffer is "chevron shape" flexure strip, and buffer includes first piece and second piece of structure symmetry, and first piece is the arc flexure strip, and first piece and second piece's one end fixed connection, the other end back of the body set up mutually, and the link setting of first piece and second piece is with the activity stay cord, and the tip of activity stay cord is located the outside of connecting cylinder.
4. The top formula replacement new trend air purifier of any one of claim 1~3, characterized in that: the one end of first filtering component, second filtering component, third filtering component, fourth filtering component all can be dismantled with updraft ventilator and be connected, first filtering component, second filtering component, third filtering component, fourth filtering component can be dismantled with end to end of two liang of each other wantonly and be connected, and the first filtering component that lies in the head end promptly can be dismantled and can dismantle with fourth filtering component and be connected, and the second filtering component can move the head end and can dismantle with updraft ventilator and be connected to in order to change or wash any one filtering component.
5. The top replacement fresh air purifier of claim 4, wherein: the air draft device comprises a first connecting sleeve, an axial flow fan and a connecting ring disc, wherein the first connecting sleeve is sleeved outside the axial flow fan, the first connecting sleeve and the axial flow fan are coaxial and concentric and are relatively fixed, one end of the first connecting sleeve is detachably connected with a first filtering assembly, the other end of the first connecting sleeve is in screw connection with the connecting ring disc, the first connecting sleeve and the connecting ring disc are coaxial and concentric, the outer diameter of the connecting ring disc is larger than that of the first connecting sleeve, the edge of the connecting ring disc is in screw connection with the other end of a connecting cylinder, the connecting cylinder is sleeved outside the first connecting sleeve and is not in contact with the first connecting sleeve, and therefore the first connecting sleeve can be conveniently detached from the connecting cylinder.
6. The top replacement fresh air purifier of claim 5, wherein: and a filling layer is arranged between the first connecting sleeve and the axial flow fan so as to relatively seal and fix the first connecting sleeve and the axial flow fan.
7. The top replacement fresh air purifier of claim 6, wherein: the first filtering component comprises a second connecting sleeve, a first filtering layer, a second filtering layer and a third filtering layer which are arranged end to end in parallel, and the second connecting sleeve is sleeved on the outer walls of the first filtering layer, the second filtering layer and the third filtering layer.
8. The top replacement fresh air purifier of claim 7, wherein: the first filter layer comprises a fastening ring and a filter screen, the filter screen covers the fastening ring, the inner circle of the fastening ring is completely covered by the filter screen, the surface area of the filter screen is larger than the outer circular area of the fastening ring, the edge of the filter screen is positioned between the fastening ring and a second connecting sleeve so as to clamp and fix the filter screen through the fastening ring and the second connecting sleeve, the second connecting sleeve is sleeved on the fastening ring, and the gap between the second connecting sleeve and the fastening ring is smaller than the thickness of the filter screen.
9. The top replacement fresh air purifier of claim 8, wherein: the second connecting sleeve is in a diameter-variable cylinder shape, the inner diameter of the second connecting sleeve is gradually reduced from one end far away from the axial flow fan to one end close to the axial flow fan, and the maximum diameter of the second connecting sleeve is larger than the outer diameter of the fastening ring, so that the fastening ring can enter from the maximum diameter of the second connecting sleeve and is fixed at the minimum diameter of the second connecting sleeve.
10. The top replacement fresh air purifier of claim 9, wherein: the second filter layer and the third filter layer are the same as the first filter layer; the structures of the second filtering component, the third filtering component and the fourth filtering component are the same as those of the first filtering component, and the filtering materials adopted by the filtering net of the first filtering component, the filtering net of the second filtering component, the filtering net of the third filtering component and the filtering net of the fourth filtering component are different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921760790.8U CN210663229U (en) | 2019-10-21 | 2019-10-21 | Top type replacement fresh air purifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921760790.8U CN210663229U (en) | 2019-10-21 | 2019-10-21 | Top type replacement fresh air purifier |
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| Publication Number | Publication Date |
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| CN210663229U true CN210663229U (en) | 2020-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921760790.8U Withdrawn - After Issue CN210663229U (en) | 2019-10-21 | 2019-10-21 | Top type replacement fresh air purifier |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110686348A (en) * | 2019-10-21 | 2020-01-14 | 宁夏理工学院 | Top type replacement fresh air purifier |
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2019
- 2019-10-21 CN CN201921760790.8U patent/CN210663229U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110686348A (en) * | 2019-10-21 | 2020-01-14 | 宁夏理工学院 | Top type replacement fresh air purifier |
| CN110686348B (en) * | 2019-10-21 | 2024-06-14 | 宁夏理工学院 | Top type fresh air replacement air purifier |
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