CN117906187A - Internal circulation air purifying cover for smoke exhaust ventilator - Google Patents
Internal circulation air purifying cover for smoke exhaust ventilator Download PDFInfo
- Publication number
- CN117906187A CN117906187A CN202410156631.6A CN202410156631A CN117906187A CN 117906187 A CN117906187 A CN 117906187A CN 202410156631 A CN202410156631 A CN 202410156631A CN 117906187 A CN117906187 A CN 117906187A
- Authority
- CN
- China
- Prior art keywords
- cover body
- filter
- range hood
- internal circulation
- air outlet
- 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.)
- Pending
Links
- 239000000779 smoke Substances 0.000 title claims abstract description 52
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 47
- 229920000742 Cotton Polymers 0.000 claims abstract description 28
- 239000000835 fiber Substances 0.000 claims abstract description 27
- 238000004887 air purification Methods 0.000 claims abstract description 10
- 238000009434 installation Methods 0.000 claims abstract description 9
- 238000004140 cleaning Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 9
- 238000003825 pressing Methods 0.000 claims description 2
- 238000001914 filtration Methods 0.000 abstract description 40
- 238000000746 purification Methods 0.000 abstract description 15
- 230000000694 effects Effects 0.000 abstract description 14
- 239000007789 gas Substances 0.000 description 32
- 239000003517 fume Substances 0.000 description 8
- 229910052799 carbon Inorganic materials 0.000 description 7
- 230000000295 complement effect Effects 0.000 description 5
- 238000010411 cooking Methods 0.000 description 3
- 206010022000 influenza Diseases 0.000 description 2
- 239000006233 lamp black Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical class C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Ventilation (AREA)
Abstract
The invention discloses an internal circulation air purification cover for a range hood, which comprises a cover body and a filter grid, wherein the cover body is arranged at the top of the range hood to cover an air outlet pipe of the range hood, the filter grid is used for filtering oil smoke gas, an air outlet for installing the filter grid is arranged on any one or more end surfaces of the cover body, the filter grid is detachably connected to the air outlet, and fiber activated carbon filter cotton is arranged in the filter grid. The invention has the following advantages and effects: through installing the cover body of inner loop air purification cover at smoke ventilator top in order to realize covering smoke ventilator, the smoke ventilator of the size of the cover body can be more different model sizes at this moment is customized, and is provided with the filter grid installation that supplies to have fiber activated carbon filter cotton on arbitrary one or more terminal surfaces of the cover body to realize filtering purification to the oil smoke gas, make the oil smoke gas after the purification flow back indoor, realize the inner loop.
Description
Technical Field
The invention relates to the technical field of air purification, in particular to an internal circulation air purification cover for a range hood.
Background
The kitchen appliance is used for purifying kitchen environment, is arranged above a kitchen stove, can rapidly pump away and discharge the waste burnt by the stove and the oil smoke harmful to human bodies in the cooking process to outdoors, and simultaneously condenses, collects and reduces pollution.
Because of living and business needs some buildings and business places, the kitchen or cooking activities are needed, but for various reasons, the buildings or business places are not provided with public flues, the public flues cannot be additionally arranged, kitchen catering oil smoke gas cannot be directly discharged, and how to arrange the kitchen in the places does not influence the indoor air environment becomes a great problem of arranging the kitchen in the places for cooking activities.
Disclosure of Invention
The invention aims to provide an internal circulation air purification cover for a smoke exhaust ventilator, which is additionally arranged on the top of the existing smoke exhaust ventilator to purify the smoke exhaust gas exhausted by the smoke exhaust ventilator and then return the smoke exhaust gas to the room to realize internal circulation.
The technical aim of the invention is realized by the following technical scheme: the utility model provides an inner loop air purification cover for smoke ventilator, is including being used for installing at the smoke ventilator top in order to realize covering the cover body of smoke ventilator's play tuber pipe, realize carrying out filterable filter grating to the oil smoke gas, be provided with the air outlet that supplies the filter grating to install on arbitrary one or more terminal surfaces of cover body, the filter grating can be dismantled and connect on the air outlet, have fiber activated carbon filter cotton in the filter grating.
Through adopting above-mentioned technical scheme, through installing the cover body of inner loop air purification cover at smoke ventilator top in order to realize covering smoke ventilator, the size of the kitchen ventilator that the size of the cover body can be more different model sizes at this moment is customized, and is provided with the filtration grid installation that supplies to have fiber activated carbon filter cotton on arbitrary one or more terminal surfaces of the cover body, in order to realize filtering purification to the oil smoke gas for the oil smoke gas after the purification flows back indoor, realizes the inner loop; meanwhile, filtered and purified oil smoke gas (the temperature is about 40 ℃) flows back into a room, and the indoor temperature can be increased in the internal circulation process in seasons or areas with lower temperature, so that the secondary utilization of heat is realized.
The invention is further provided with: the cover body is internally provided with a guide structure for guiding the oil smoke gas to the filter grid.
Through adopting above-mentioned technical scheme, the oil smoke gas enters into the cover body after being discharged from smoke ventilator's play tuber pipe, through the setting of guide structure for oil smoke gas can be rapid from filtering the grid through filtering the back flow indoor after purifying.
The invention is further provided with: the cover body is located the air outlet both ends and is provided with first buckle seat, the filter grille both ends are provided with the second buckle seat that corresponds first buckle seat, be provided with two symmetries on the first buckle seat and set up and have the fixture block of draw-in groove, be provided with the cassette of embedding between two fixture blocks and up and down the terminal surface have the hemisphere protruding portion of lock in the draw-in groove on the second buckle seat, two hemisphere protruding portions of cassette are in the installation order about two fixture blocks to realize the lock in the draw-in groove after the direction that keeps away from each other takes place deformation.
Through adopting above-mentioned technical scheme, because of the fiber active carbon filter cotton in the filter grating need change after long-term use, the cover body at filter grating both ends is located between the air outlet both ends and realizes dismantling the connection through first buckle seat and second buckle seat this moment to have the effect of conveniently dismantling the change filter grating, in order to guarantee the filter grating to the filtration purifying effect of oil smoke gas.
The invention is further provided with: the filter grille comprises a grille frame, two fixing brackets arranged at two ends of the grille frame, a filter screen plate with two ends placed in the two fixing brackets, fiber activated carbon filter cotton arranged in the filter screen plate, and two fixing strips which are detachably connected at two ends of the grille frame and used for respectively compressing the two ends of the filter screen plate.
Through adopting above-mentioned technical scheme, after dismantling the filtration grid, through dismantling the fixed strip and taking down the filtration screen plate after, conveniently realize changing inside fiber activated carbon filter cotton to guarantee the filtration purifying effect of filtration grid.
The invention is further provided with: the fixed bolster sets up with the front side interval of grid frame, the front side of grid frame is provided with a plurality of bar apopore that extend along its length direction, the upside of bar apopore is provided with the bar inclined plate portion that the orientation is close to the direction slope downwardly extending of fibre active carbon filter cotton, bar inclined plate portion is not contacted with fibre active carbon filter cotton.
Through adopting above-mentioned technical scheme, the front side interval of fixed bolster and grid frame sets up for be formed with the cavity between the front side of fiber activated carbon filtration cotton and the grid frame, with the front side of avoiding the grid frame is direct to contact with fiber activated carbon filtration cotton, guarantee the gaseous emission efficiency of the filterable oil smoke of fiber activated carbon filtration cotton, set up for bar inclined plate portion simultaneously also provides installation space, bar inclined plate portion is towards being close to the direction slope downwardly extending of fiber activated carbon filtration cotton, play the bar apopore exhaust effect on the guide filtration purification back oil smoke gas follow grid frame, also accord with the nature that the temperature of oil smoke gas risees when higher relative room temperature, further improve the gaseous emission efficiency of oil smoke after the filtration purification.
The invention is further provided with: the top side of the cover body is provided with a strip-shaped baffle plate part which extends downwards near the filtering grid.
By adopting the technical scheme, the strip-shaped baffle plate part which extends downwards is arranged at the position, close to the filtering grid, of the top side of the cover body, so that the oil smoke gas can be prevented from directly penetrating from the joint of the cover body and the top of the filtering grid.
The invention is further provided with: the air outlet is only provided with one and is located the front side of the cover body, the guide structure comprises a guide plate arranged between the rear side inner wall and the top side inner wall of the cover body, and the orthographic projection of the guide plate interferes with the range of the air outlet pipe of the range hood.
Through adopting above-mentioned technical scheme, when the oil smoke gas is discharged from smoke ventilator's play tuber pipe, the oil smoke gas flows on the guide board along vertical ascending direction, along guide board flow in-process change direction to realize the direction motion towards filtering the grid, and flow back indoor after filtering the purification through filtering the grid.
The invention is further provided with: the rear side of the cover body is provided with the first breach of giving way the tuber pipe in the top in-process of the smoke ventilator of installing along the horizontal direction at the cover body, the guide board lower extreme is provided with the second breach that corresponds first breach, guide structure is still including dismantling the complement board that sets up between the rear side inner wall of the cover body and guide board and realize covering first breach and second breach, the bottom that the cover body rear side inner wall was not extended to the guide board lower extreme, the complement board lower extreme extends to the bottom of cover body rear side inner wall.
Through adopting above-mentioned technical scheme, when the cover body is installed at the top of smoke ventilator along the horizontal direction, the play tuber pipe of smoke ventilator can interfere the installation of the cover body, can realize giving the tuber pipe and give way through the setting of first breach, second breach, realize covering first breach and second breach through the complement board after the cover body is installed, prevent that oil smoke gas from leaking; simultaneously when guide board, first breach, second breach, the setting of complement, original airtight cavity between the cover body and the guide board has the breach in first breach department, and the higher air of the temperature of airtight cavity between the cover body and the guide board can be through the external side motion of first breach department towards the cover this moment, forms the air flow, improves the radiating effect, accelerates the cooling of the internal guide board temperature of cover department, avoids filtering the oily fume gas temperature after the grid filters the purification too high.
The invention is further provided with: the air outlet is only provided with one and is positioned at the front side of the cover body, and the plane of the air outlet is obliquely upwards arranged.
Through adopting above-mentioned technical scheme, the place plane slope of air outlet upwards sets up for the filtration grid slope of installation upwards sets up, makes the oil smoke gas after the filtration grid filtration purification rise, and convenient hot air gathers in the top of indoor space, avoids the problem that lower part air temperature is too high in the indoor in the use of higher region of temperature.
The invention is further provided with: the front side that the air outlet is provided with the cover body and symmetry are provided with two, two the one end that the plane of air outlet is located and is kept away from each other is towards the back side tilting setting of the cover body.
Through adopting above-mentioned technical scheme, through being provided with two air outlets at the front side symmetry of the cover body, the lampblack gas after filtering purification discharges to two directions from the cover body front side this moment, can further improve indoor everywhere temperature's equilibrium in the air internal circulation in-process.
Drawings
Fig. 1 is a schematic structural view of embodiment 1;
FIG. 2 is an exploded view of the structure of example 1;
Fig. 3 is a structural sectional view of embodiment 1;
FIG. 4 is a schematic view of the structure of example 1 with the filter grille removed;
FIG. 5 is an exploded view of the structure of the explosion at the patch panel of FIG. 4;
FIG. 6 is a schematic view showing the structure of the filter grill in example 1;
FIG. 7 is an exploded view of the structure of the filter grill of example 1;
FIG. 8 is an exploded view of another construction of example 1;
FIG. 9 is an enlarged view of a portion of FIG. 8 at A;
Fig. 10 is a schematic view showing a structure in which the internal circulation air cleaning hood of embodiment 1 is mounted on the range hood;
Fig. 11 is a schematic view showing a structure in which a cover body of the inner circulation air cleaning cover in embodiment 1 is mounted on the range hood;
fig. 12 is a structural side view of embodiment 2;
fig. 13 is a top view of the structure of embodiment 3.
Reference numerals: 1. a cover body; 11. an air outlet; 12. a strip-shaped baffle plate part; 13. a first notch; 2. a filter grid; 21. a grid frame; 211. a strip-shaped air outlet hole; 212. a strip-shaped inclined plate portion; 22. a fixed bracket; 23. a filter screen plate; 24. fiber activated carbon filter cotton; 25. a fixing strip; 3. a guide structure; 31. a guide plate; 311. a second notch; 32. repairing the plate; 4. a first fastening seat; 41. a clamping block; 411. a clamping groove; 5. the second buckle seat; 51. a clamping seat; 511. hemispherical protrusions.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example 1: an internal circulation air purification cover for a range hood is shown in fig. 1 and 2, and comprises a cover body 1 which is arranged at the top of the range hood (matched with fig. 10) to cover an air outlet pipe of the range hood and a filter grid 2 for filtering oil smoke gas, wherein an air outlet 11 for installing the filter grid 2 is arranged on any one or more end faces of the cover body 1 (in the embodiment, the air outlet 11 is only provided with one air outlet and is positioned on the front side of the cover body 1, and in addition, the mark 11 is indicated at the blank of fig. 2), and the filter grid 2 is detachably connected to the air outlet 11.
As shown in fig. 3 to 5, a guide structure 3 for guiding the fume gas to the filter grill 2 is provided in the housing 1. The guide structure 3 comprises a guide plate 31 and a complementary plate 32 which are arranged between the rear side inner wall and the top side inner wall of the cover body 1, and the orthographic projection of the guide plate 31 is interfered with the range of the air outlet pipe of the smoke exhaust ventilator. The rear side of the cover body 1 is provided with a first gap 13 of an abdicating air outlet pipe (matched with fig. 11) in the process of installing the cover body 1 at the top of the range hood along the horizontal direction, the lower end of the guide plate 31 is provided with a second gap 311 corresponding to the first gap 13, the guide structure 3 further comprises a patch plate 32 which is detachably arranged between the rear side inner wall of the cover body 1 and the guide plate 31 and covers the first gap 13 and the second gap 311, the lower end of the guide plate 31 does not extend to the bottom of the rear side inner wall of the cover body 1, and the lower end of the patch plate 32 extends to the bottom of the rear side inner wall of the cover body 1. And a strip-shaped baffle part 12 extending downwards is arranged on the top side of the cover body 1 near the filtering grille 2.
As shown in fig. 2, 3, 6 and 7, the filter screen 2 comprises a screen frame 21, two fixing brackets 22 arranged at two ends of the screen frame 21, a filter screen plate 23 with two ends placed in the two fixing brackets 22, fiber activated carbon filter cotton 24 (also called activated carbon fiber filter cotton) arranged in the filter screen plate 23, and two fixing strips 25 detachably connected at two ends of the screen frame 21 and realizing pressing of two ends of the filter screen plate 23 respectively. The fixing bracket 22 is disposed at an interval from the front side of the grill frame 21, the front side of the grill frame 21 is provided with a plurality of strip-shaped air outlet holes 211 extending along the length direction thereof, the upper side of the strip-shaped air outlet holes 211 is provided with a strip-shaped inclined plate portion 212 extending obliquely downward toward a direction approaching the fiber activated carbon filter cotton 24, and the strip-shaped inclined plate portion 212 is not in contact with the fiber activated carbon filter cotton 24.
As shown in fig. 8 and 9, the cover 1 is provided with first fastening seats 4 at two ends of the air outlet 11, two ends of the grille frame 21 are provided with second fastening seats 5 corresponding to the first fastening seats 4, two fastening blocks 41 symmetrically arranged and provided with fastening slots 411 are arranged on the first fastening seats 4, fastening seats 51 embedded between the two fastening blocks 41 and provided with hemispherical protruding portions 511 with upper and lower end faces fastened in the fastening slots 411 are arranged on the second fastening seats 5, and the two hemispherical protruding portions 511 of the fastening seats 51 are fastened in the fastening slots 411 after driving the two fastening blocks 41 to deform in directions away from each other in the installation process.
The implementation effect is as follows: with reference to fig. 10 and 11, the hood body 1 of the internal circulation air purification hood is mounted on the top of the range hood to cover the range hood, at this time, the range hood with the hood body 1 of different sizes can be customized, and the filter grids 2 with the fiber activated carbon filter cotton 24 are arranged on any one or more end surfaces of the hood body 1 to realize the filtration and purification of the oil fume gas, so that the purified oil fume gas flows back into a room to realize internal circulation; meanwhile, filtered and purified oil smoke gas (the temperature is about 40 ℃) flows back into a room, and the indoor temperature can be increased in the internal circulation process in seasons or areas with lower temperature, so that the secondary utilization of heat is realized.
Because of the fiber activated carbon filter cotton 24 in the filter grille 2 needs to be replaced after long-term use, the cover bodies 1 at two ends of the filter grille 2 are positioned between two ends of the air outlet 11 and are detachably connected through the first buckle seat 4 and the second buckle seat 5, so that the filter grille 2 is convenient to detach and replace, and the filtering and purifying effects of the filter grille 2 on the oil smoke gas are guaranteed.
After the filter grille 2 is disassembled, the filter grille 2 can be conveniently replaced by disassembling the fixing strips 25 and taking down the filter screen plate 23, so that the filter purifying effect of the filter grille 2 is ensured. The fixed bolster 22 and the front side interval setting of grid frame 21 for be formed with the cavity between the front side of fibre active carbon filter cotton 24 and grid frame 21, with the front side of avoiding grid frame 21 direct and fibre active carbon filter cotton 24 contact, guarantee the exhaust efficiency of the oily fume gas of filtering through fibre active carbon filter cotton 24, the setting of also being for bar inclined plate portion 212 provides the installation space simultaneously, bar inclined plate portion 212 is towards being close to the direction slope downwardly extending of fibre active carbon filter cotton 24, play the effect of the gaseous follow bar air outlet 211 exhaust on the grid frame 21 of guiding the oily fume after filtering purification, also accord with oily fume gas's temperature and rise the nature when relative room temperature is higher, further improve oily fume gas's after filtering purification exhaust efficiency. The strip-shaped baffle plate part 12 extending downwards is arranged on the top side of the cover body 1 close to the filter grid 2, so that the oil smoke gas can be prevented from directly penetrating from the connection part between the cover body 1 and the top of the filter grid 2.
Example 2: an internal circulation air cleaning hood for a range hood, as shown in fig. 12, is different from embodiment 1 in that: the air outlet 11 is only provided with one and is located at the front side of the cover body 1, the plane of the air outlet 11 is obliquely upwards, and the filter grille 2 is obliquely upwards.
The implementation effect is as follows: the plane slope that air outlet 11 is located upwards sets up for the filtration grid 2 slope of installation upwards sets up, makes the oil smoke gas after the filtration grid 2 filtration purification rise, and the convenient hot air gathers in the top of indoor space, avoids the problem that lower part air temperature is too high in the indoor in the use of higher region of temperature.
Example 3: an internal circulation air cleaning hood for a range hood, which differs from embodiment 1 in that: the air outlet 11 is provided with the front side of the cover body 1 and is symmetrically provided with two, and the one end that the plane that the two air outlets 11 are located is kept away from each other is towards the back side inclined setting of the cover body 1, and two filtration gratings 2 are symmetrically provided and are the one end that keeps away from each other and are towards the back side inclined setting of the cover body 1 this moment.
The implementation effect is as follows: through being provided with two air outlets 11 at the front side symmetry of the cover body 1, the lampblack gas after filtering purification discharges towards two directions from the cover body 1 front side this moment, can further improve indoor everywhere temperature's equilibrium in the air internal circulation in-process.
The present embodiment is only for explanation of the present invention and is not to be construed as limiting the present invention, and modifications to the present embodiment, which may not creatively contribute to the present invention as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present invention.
Claims (10)
1. An internal circulation air purification cover for a range hood, which is characterized in that: including be used for installing at smoke ventilator top in order to realize covering smoke ventilator's play tuber pipe cover body (1), realize carrying out filterable filter grille (2) to the oil smoke gas, be provided with air outlet (11) that supply filter grille (2) to install on arbitrary one or more terminal surface of cover body (1), filter grille (2) detachable connection is on air outlet (11), have fiber activated carbon filter cotton (24) in filter grille (2).
2. An internal circulation air cleaning hood for a range hood according to claim 1, wherein: a guide structure (3) for guiding the oil smoke gas to the filter grid (2) is arranged in the cover body (1).
3. An internal circulation air cleaning hood for a range hood according to claim 1 or 2, characterized in that: the cover body (1) is located air outlet (11) both ends and is provided with first buckle seat (4), filter grid (2) both ends are provided with second buckle seat (5) that correspond first buckle seat (4), be provided with fixture block (41) that two symmetries set up and have draw-in groove (411) on first buckle seat (4), be provided with on second buckle seat (5) and imbed between two fixture blocks (41) and up and down the cassette (51) that the terminal surface has hemispherical protrusion (511) of lock in draw-in groove (411), two hemispherical protrusion (511) of cassette (51) order about two fixture blocks (41) to take place to change the lock in draw-in groove (411) after the direction that is kept away from each other in the installation.
4. An internal circulation air cleaning hood for a range hood according to claim 1 or 2, characterized in that: the filter grid (2) comprises a grid frame (21), two fixing supports (22) arranged at two ends of the grid frame (21), a filter screen plate (23) with two ends placed in the two fixing supports (22), fiber activated carbon filter cotton (24) arranged in the filter screen plate (23), and two fixing strips (25) detachably connected at two ends of the grid frame (21) and used for respectively pressing the two ends of the filter screen plate (23).
5. An internal circulation air cleaning hood for a range hood according to claim 4, wherein: the fixing support (22) is arranged at intervals with the front side of the grid frame (21), a plurality of strip-shaped air outlet holes (211) extending along the length direction of the grid frame (21) are formed in the front side of the grid frame (21), strip-shaped inclined plate portions (212) extending downwards obliquely towards the direction close to the fiber activated carbon filter cotton (24) are arranged on the upper side of the strip-shaped air outlet holes (211), and the strip-shaped inclined plate portions (212) are not in contact with the fiber activated carbon filter cotton (24).
6. An internal circulation air cleaning hood for a range hood according to claim 4, wherein: a strip-shaped baffle plate part (12) extending downwards is arranged on the top side of the cover body (1) close to the filter grid (2).
7. An internal circulation air cleaning hood for a range hood according to claim 2, wherein: the air outlet (11) is only provided with one and is located at the front side of the hood body (1), the guide structure (3) comprises a guide plate (31) arranged between the rear side inner wall and the top side inner wall of the hood body (1), and the orthographic projection of the guide plate (31) interferes with the range of the air outlet pipe of the range hood.
8. An internal circulation air cleaning hood for a range hood according to claim 7, wherein: the rear side of the cover body (1) is provided with a first gap (13) of an escape pipe in the process of installing the cover body (1) at the top of the range hood along the horizontal direction, the lower end of the guide plate (31) is provided with a second gap (311) corresponding to the first gap (13), the guide structure (3) further comprises a patch (32) which is detachably arranged between the rear side inner wall of the cover body (1) and the guide plate (31) and covers the first gap (13) and the second gap (311), the lower end of the guide plate (31) does not extend to the bottom of the rear side inner wall of the cover body (1), and the lower end of the patch (32) extends to the bottom of the rear side inner wall of the cover body (1).
9. An internal circulation air cleaning hood for a range hood according to claim 1 or 2, characterized in that: the air outlets (11) are only arranged on one side and are positioned on the front side of the cover body (1), and the plane of each air outlet (11) is obliquely upwards.
10. An internal circulation air cleaning hood for a range hood according to claim 1 or 2, characterized in that: the air outlets (11) are symmetrically arranged at the front side of the cover body (1), and one ends, far away from each other, of planes of the two air outlets (11) are inclined towards the rear side of the cover body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410156631.6A CN117906187A (en) | 2024-02-04 | 2024-02-04 | Internal circulation air purifying cover for smoke exhaust ventilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410156631.6A CN117906187A (en) | 2024-02-04 | 2024-02-04 | Internal circulation air purifying cover for smoke exhaust ventilator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117906187A true CN117906187A (en) | 2024-04-19 |
Family
ID=90692131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410156631.6A Pending CN117906187A (en) | 2024-02-04 | 2024-02-04 | Internal circulation air purifying cover for smoke exhaust ventilator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117906187A (en) |
-
2024
- 2024-02-04 CN CN202410156631.6A patent/CN117906187A/en active Pending
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