CN109404998A - Dual water curtain rotation curtain filters range hood - Google Patents
Dual water curtain rotation curtain filters range hood Download PDFInfo
- Publication number
- CN109404998A CN109404998A CN201710701061.4A CN201710701061A CN109404998A CN 109404998 A CN109404998 A CN 109404998A CN 201710701061 A CN201710701061 A CN 201710701061A CN 109404998 A CN109404998 A CN 109404998A
- Authority
- CN
- China
- Prior art keywords
- water
- range hood
- curtain
- dual
- water curtain
- 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.)
- Withdrawn
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 138
- 230000009977 dual effect Effects 0.000 title claims abstract description 20
- 239000000779 smoke Substances 0.000 claims abstract description 48
- 238000004140 cleaning Methods 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-ZSJDYOACSA-N Heavy water Chemical compound [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 claims abstract description 16
- 239000003517 fume Substances 0.000 claims abstract description 12
- 238000001816 cooling Methods 0.000 claims description 46
- 239000007788 liquid Substances 0.000 claims description 20
- 230000000694 effects Effects 0.000 claims description 4
- 230000001174 ascending effect Effects 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims 1
- 238000001914 filtration Methods 0.000 abstract description 6
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000000746 purification Methods 0.000 abstract description 3
- 239000004519 grease Substances 0.000 abstract description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract 1
- 239000003546 flue gas Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 238000013475 authorization Methods 0.000 description 4
- 101150038956 cup-4 gene Proteins 0.000 description 4
- 238000003860 storage Methods 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 235000019504 cigarettes Nutrition 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
- F24C15/2035—Arrangement or mounting of filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
- F24C15/2057—Removing cooking fumes using a cleaning liquid
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
Abstract
A kind of dual water curtain rotation curtain filtering range hood, including housing (5), blower (52), exhaust fume collecting hood (51), smoke deflector (3a) and catchment cup (4), it is characterized in that the range hood further includes drip tray (1), bracket (23), water dispersing disc (2) and water-supply-pipe (3), a heavy water curtain region is formed between the water dispersing disc (2) and the inner ring upper surface of drip tray (1), double water curtain region is formed between the inner ring lower end surface of the drip tray (1) and the upper surface of aforementioned smoke deflector (3a), the smoke deflector (3a) can accept the ejected wash water flowed out in weeper (13) or cleaning solution and be drained to catchment cup (4).By the flue gas that secondary water curtain filters, grease therein is collected, and conducive to the feature of environmental protection for improving discharge oil smoke, what a heavy water curtain region was formed is dynamic rotary water curtain, is more conducive to the purification and oil suction processing of oil smoke.
Description
Technical field
The present invention relates to a kind of range hoods, belong to technical field of kitchen wares.
Background technique
Kitchen ventilator has come into huge numbers of families, and at popular consumer goods, major function is exactly to drain the culinary art of kitchen internal cause
The oil smoke and exhaust gas of generation.Currently, common kitchen ventilator is generally provided with air duct, blower, oil cleaner screen and catchment cup, blower is by wind
It being discharged in air duct, catchment cup collects the greasy dirt flow down from oil cleaner screen, after long-time use, although with the presence of catchment cup,
Can be found in air duct and on blower all can greasy dirt accumulation, deal with especially hard time-consuming, also, cause blower load increase,
Suction force decline；In addition, being dealt with also especially bothersome after oil cleaner screen and catchment cup are unloaded down.
For this purpose, disclosing many washing type oil smoke machines in the prior art, the China such as Patent No. ZL99209588.3 is real
With new patent " automatic range hood cleaning " (Authorization Notice No.: CN2373711Y), which includes range hood host machine,
It is characterized in: is equipped with liquid storage device by the centrifugal blower of range hood, has a cleaning pump, one end of perfusion tube and cleaning pump in liquid storage device
Water outlet connection, the other end be connected to spray head, spray head face centrifugal fan in impeller and be fixed on host.Class
As can with referenced patent number be ZL02272678.0 Chinese utility model patent " smoke exhaust ventilator cleaned automatically " (authorization
Notification number: CN2566158Y).
How the water generated in above-mentioned patent kitchen ventilator is handled, and does not provide specific detailed answer, and liquid storage device is installed
And replacement is more inconvenient, needs to improve.
On this basis, and many patents of improving occur, such as the Chinese invention of Patent No. ZL200610107966.0
Patent " smoke exhaust ventilator " (Authorization Notice No.: CN100535530C) to the air heat exchange entered in kitchen ventilator and carries out cascade
Then formula cleaning is discharged by exhausting duct, and water realizes circulation by a circulating pump；Can be with referenced patent number
ZL200820145732.X Chinese utility model patent " a kind of comprehensive full-automatic range hood " (Authorization Notice No.:
CN201359311Y), which collects oil droplet purification air using atomizing type combination filter gauze.But above-mentioned patent is due to knot
Structure arrangement is wanting in consideration, and so that water is mixed with air density inadequate, causes oil smoke water washing effect bad, it is indefinite that blower still needs to carry out
The cleaning of phase, and also need in addition to be arranged shield in patent ZL200820145732.X, it will definitely increase manufacturing cost.
Summary of the invention
The technical problem to be solved by the present invention is to provide a kind of by oil smoke washing filtering for the above-mentioned state of the art
Adequately dual water curtain rotation curtain filters range hood.
Another technical problem to be solved by this invention is provided a kind of by oil smoke water for the above-mentioned state of the art
It washes filter and filters range hood with the combined dual water curtain rotation curtain of blower water cooling
The technical scheme of the invention to solve the technical problem is: a kind of dual water curtain rotation curtain filters fume-exhausting
Machine, including housing, blower, exhaust fume collecting hood, smoke deflector and catchment cup, blower above-mentioned are set in housing, and exhaust fume collecting hood above-mentioned is set to
Housing lower port simultaneously has air inlet, and smoke deflector face air inlet above-mentioned is arranged and maintains scheduled with exhaust fume collecting hood
Away to be formed with the oil smoke channel for holding oil smoke and passing through therebetween in smoke deflector and exhaust fume collecting hood, it is characterised in that the fume-exhausting
Machine further includes
Drip tray, set on the lower port of aforementioned housing, the middle part of the drip tray forms the hollow channel risen for oil smoke, outside
Gradually intilted ring wall, inner ring offer multiple spaced apart weepers for circle formation；
Bracket, set on the lower port of aforementioned housing；
Water dispersing disc is revolvably set in aforementioned brackets and is located at the top of aforementioned drip tray inner ring, water dispersing disc arrangement
In aforementioned housing lower port and upper surface form multiple radial diversion trenches, also, diversion trench above-mentioned is in arc-shaped
So as to water flow by the case where drive aproll disc spins；And
Water-supply-pipe is set in aforementioned housing, and the water outlet of the water-supply-pipe is passed into the upper surface of aforementioned water dispersing disc；
A heavy water curtain region is formed between the water dispersing disc and the inner ring upper surface of drip tray, the drip tray, which is accepted, to be dissipated
Water pond edge gets rid of the ejected wash water got off or cleaning solution, between the inner ring lower end surface of the drip tray and the upper surface of aforementioned smoke deflector
Double water curtain region is formed, the smoke deflector can accept the ejected wash water flowed out in weeper or cleaning solution and be drained to oil-collecting
Cup.
Further, a bottom at least partly hollow out is equipped in the middle part of the water dispersing disc upper surface holds liquid bucket, the water delivery
Pipe is passed into above-mentioned hold in liquid bucket.
In view of the assembly of drip tray, which further includes the outer framework of the lower port set on housing, the outer framework
Middle part is hollow hollow-out parts, and the water dispersing disc is set in hollow-out parts above-mentioned, and the branch is set up in outer framework upper surface.
The blower is equipped with the water cooling pipeline for heat dissipation, and the water cooling pipeline is connected to water-supply-pipe.Water cooling pipeline warp
Cross heat that blower housing generates blower with, to improve the stability of fan operation, the water in water cooling pipeline is heated,
Conducive to the subsequent filtering to oil smoke, two obtain at one stroke.
Further, the shell of the blower is equipped with the cooling fin of radial arrangement, and the water cooling pipeline is wound in scattered
Backing periphery.
The arrangement of water cooling pipeline is preferably one of following:
The first, offers embedded groove on the cooling fin, accordingly, the water cooling pipeline is then embedded at above-mentioned embedding
Enter in slot.
Second, the water cooling pipeline is between the adjacent cooling fin of S shape coiling.
Further, the water cooling pipeline includes at least the two water cooling branches connected side by side, two water cooling branch above-mentioned
Road surrounds an annulus on the shell of blower.
The water cooling pipeline includes at least the two water cooling branches connected side by side, two water cooling branches (311) above-mentioned
An annulus is surrounded on the shell of blower.
The weeper divides at least two rows of arrangements from the outside to the core, also, the weeper of adjacent two rows is staggeredly arranged.It can be with shape
At bilayer or multilayer dynamic water sieve, water cleaning is more thorough.
The smoke deflector edge circumferentially has the retaining section for being higher by upper surface, also, close to inboard neighbouring catchment cup
Retaining section offers drainage hole.
The smoke deflector is obliquely installed gradually downward from front to back.Conducive to the collection of ejected wash water or cleaning solution.
Further, the catchment cup has drainpipe, and the range hood further includes the liquid reserve tank being connected to water-supply-pipe,
The water inlet end of the liquid reserve tank connects drainpipe above-mentioned to constitute circulation loop, is equipped with circulating pump in aforementioned circulation loop.
The edge of the water dispersing disc extend outwardly be provided with it is multiple ascending air effect under can drive aproll disc spins
Axial blade, the axial blade are to be in tilted layout.
Compared with the prior art, the advantages of the present invention are as follows: the ejected wash water or cleaning solution of water dispersing disc are from diversion trench by introversion
Throw away outside, form a heavy water curtain region between the inner ring upper surface of water dispersing disc and drip tray, the inner ring lower end surface of drip tray with lead
Double water curtain region is formed between the upper surface of cigarette plate, completes second of Water curtain filter, then by the cigarette of secondary water curtain filtering
Gas, grease are collected, and conducive to the feature of environmental protection for improving discharge oil smoke, what a heavy water curtain region was formed is dynamic rotary water curtain, and is
Rotation is driven using water flow, environmentally friendly Non-energy-consumption loss is more conducive to the purification and oil suction processing of oil smoke.Meanwhile water curtain
The cleannes of range hood can be improved in filtering, reduce cleaning difficulty and intensity.Compact overall structure is reasonable, be conducive to maintenance and
Cleaning.
Detailed description of the invention
Fig. 1 is 1 structural schematic diagram of embodiment.
Fig. 2 is 1 partial sectional view of embodiment.
Fig. 3 is partial enlarged view in embodiment 1.
Fig. 4 is the enlargement decomposition of bracket, water dispersing disc and outer framework in Fig. 3.
Fig. 5 is water dispersing disc reverse side enlarged diagram in Fig. 4.
Fig. 6 is 1 oil smoke of embodiment trend and Water curtain filter schematic diagram.
Fig. 7 is 1 water flow working principle block diagram of embodiment.
Fig. 8 combines enlarged drawing with blower for water cooling pipeline in Fig. 3.
Fig. 9 is water cooling pipeline and blower constitutional diagram in embodiment 2.
Specific embodiment
The present invention will be described in further detail below with reference to the embodiments of the drawings.
Embodiment 1, as shown in Figure 1, Figure 2, Figure 3 shows, the dual water curtain rotation curtain filtering range hood in the present embodiment includes cover
Shell 5, blower 52, exhaust fume collecting hood 51, smoke deflector 3a, drip tray 1, bracket 23, water dispersing disc 2, water-supply-pipe 3 and catchment cup 4, blower 52 are set
In in housing 5, exhaust fume collecting hood 51 is set to 5 lower port of housing and has air inlet, the setting of the smoke deflector 3a face air inlet and with collection
Petticoat pipe 51 maintains scheduled spacing, to be formed with the oil smoke for holding oil smoke and passing through therebetween in smoke deflector 3a and exhaust fume collecting hood 51
Channel, the edge smoke deflector 3a circumferentially have the retaining section 31a for being higher by upper surface, also, close to the water blocking of inboard neighbouring catchment cup 4
Portion 31a offers drainage hole 32a.Smoke deflector 3a is obliquely installed gradually downward from front to back.
Drip tray 1 is set to the lower port of housing 5, and the middle part of the drip tray 1 forms the hollow channel risen for oil smoke, outer ring
11, which form gradually intilted ring wall, inner ring 12, offers multiple spaced apart weepers 13, and weeper 13 is from the outside to the core
Divide two rows of arrangements, also, the weeper 13 of adjacent two rows is staggeredly arranged.
Bracket 23 is set to the lower port of housing 5, and water dispersing disc 2 is revolvably set on bracket 23 and is located at 1 inner ring of drip tray
Top, which is arranged in the lower port of housing 5 and upper surface forms multiple radial diversion trenches 21, also, leads
Chute 21 in arc-shaped so as to water flow by the case where driving water dispersing disc 2 rotate.The edge of water dispersing disc 2, which extends outwardly, to be set
It is equipped with multiple axial blades 22 (as shown in connection with fig. 5) that aproll disc spins can be driven under ascending air effect, the axial blade
22 be inclination arrangement.In this way on the basis of the water flow driving rotation of water dispersing disc 2, the rotation of the further power-assisted water dispersing disc 2 of axial blade 22
Turn, the driving of water dispersing disc 2 can be rotated freely, environmental protection and Non-energy-consumption without power sources such as motors using water flow and rising wind-force
Loss.
Water-supply-pipe 3 is set in housing 5, and the water outlet of the water-supply-pipe 3 is passed into the upper surface of water dispersing disc 2.
A heavy water curtain region is formed between water dispersing disc 2 and the inner ring upper surface of drip tray 1, drip tray 1 accepts 2 side of water dispersing disc
Edge gets rid of the ejected wash water got off or cleaning solution, forms two heavy water between the inner ring lower end surface of drip tray 1 and the upper surface of smoke deflector 3a
Curtain region, smoke deflector 3a can accept the ejected wash water flowed out in weeper 13 or cleaning solution and be drained to catchment cup 4.
As shown in connection with fig. 4, a bottom part hollow out is equipped in the middle part of 2 upper surface of water dispersing disc holds liquid bucket 24, holds 24 bottom of liquid bucket
Portion is communicated with diversion trench 21, and water-supply-pipe 3, which is passed into, to be held in liquid bucket 24.Outer framework 25 is set to the lower port of housing 5, the outer framework 25
Middle part is hollow hollow-out parts, and water dispersing disc 2 is set in hollow-out parts, and bracket 23 is set to 25 upper surface of outer framework.
As shown in connection with fig. 7, catchment cup 4 has drainpipe 41, and range hood further includes the liquid reserve tank 6 being connected to water-supply-pipe 3,
Liquid reserve tank 6 can be separately provided, and also can be set in 5 top of housing, the water inlet end connection drainpipe 41 of the liquid reserve tank 6 is to structure
At circulation loop, circulating pump 7 is equipped in circulation loop.
As shown in connection with fig. 8, blower 52 is equipped with the water cooling pipeline 31 for heat dissipation, and water cooling pipeline 31 is connected to water-supply-pipe 3.
The shell of blower 52 is equipped with the cooling fin 53 of radial arrangement, and water cooling pipeline 31 is wound in 53 periphery of cooling fin.Cooling fin 53
On offer embedded groove 531, accordingly, water cooling pipeline 31 is then embedded in embedded groove 531.Water cooling pipeline 31 is in S shape coiling phase
Between adjacent cooling fin 53.Water cooling pipeline 31 cools down blower.
As shown in connection with fig. 6, ejected wash water or cleaning solution cool down blower 52, then pass through from after water cooling pipeline 31
Water-supply-pipe is crossed, enters and holds liquid bucket, then from the bottom end runner water dispersing disc for holding liquid bucket, is got rid of along the diversion trench of water dispersing disc from edge
It is flowed to inner ring to the outer ring of drip tray, then from outer ring, flows to the smoke deflector back side, then the row from smoke deflector from the dripping hole of inner ring
Into catchment cup, ejected wash water or cleaning solution in catchment cup flow back into liquid reserve tank by circulating pump.
Embodiment 2, as shown in connection with fig. 9, the water cooling pipeline 31 in the present embodiment include the two water cooling branches connected side by side
311, two water cooling branches 311 surround an annulus on the shell of blower 52.Other structures reference implementation example 1.
Claims (13)
1. a kind of dual water curtain rotation curtain filters range hood, including housing (5), blower (52), exhaust fume collecting hood (51), smoke deflector (3a)
And catchment cup (4), blower (52) above-mentioned are set in housing (5), exhaust fume collecting hood (51) above-mentioned is set to housing (5) lower port and has
There is air inlet, smoke deflector (3a) face air inlet above-mentioned is arranged and maintains scheduled spacing with exhaust fume collecting hood (51), thus
It is formed with the oil smoke channel for holding oil smoke and passing through therebetween at smoke deflector (3a) and exhaust fume collecting hood (51), it is characterised in that the fume-exhausting
Machine further includes
Drip tray (1), is set to the lower port of aforementioned housing (5), and the middle part formation of the drip tray (1) rises hollow logical for oil smoke
Road, gradually intilted ring wall, inner ring (12) offer multiple spaced apart weepers (13) for outer ring (11) formation；
Bracket (23) is set to the lower port of aforementioned housing (5)；
Water dispersing disc (2) is revolvably set in aforementioned brackets and is located at the top of aforementioned drip tray (1) inner ring, the water dispersing disc cloth
It is placed in the lower port of aforementioned housing (5) and upper surface forms multiple radial diversion trenches (21), also, diversion trench above-mentioned
(21) in arc-shaped so as to water flow by the case where driving water dispersing disc (2) rotate；And
Water-supply-pipe (3) is set in aforementioned housing, and the water outlet of the water-supply-pipe (3) is passed into the upper surface of aforementioned water dispersing disc (2)；
A heavy water curtain region, the drip tray (1) are formed between the water dispersing disc (2) and the inner ring upper surface of drip tray (1)
It accepts water dispersing disc (2) edge and gets rid of the ejected wash water got off or cleaning solution, the inner ring lower end surface of the drip tray (1) and aforementioned smoke deflector
Double water curtain region is formed between the upper surface of (3a), the smoke deflector (3a) can accept the cleaning flowed out in weeper (13)
Water or cleaning solution are simultaneously drained to catchment cup (4).
2. dual water curtain rotation curtain according to claim 1 filters range hood, it is characterised in that water dispersing disc (2) upper end
Middle face is equipped with a bottom at least partly hollow out and holds liquid bucket (24), and the water-supply-pipe (3), which is passed into, above-mentioned holds liquid bucket
(24) in.
3. dual water curtain rotation curtain according to claim 1 filters range hood, it is characterised in that the range hood further includes
It is hollow hollow-out parts, the water dispersing disc (2) in the middle part of the outer framework (25) of the lower port of housing (5), the outer framework (25)
In hollow-out parts above-mentioned, the bracket (23) is set to outer framework (25) upper surface.
4. dual water curtain rotation curtain according to claim 1 filters range hood, it is characterised in that set on the blower (52)
There is the water cooling pipeline (31) for heat dissipation, the water cooling pipeline (31) is connected to water-supply-pipe (3).
5. dual water curtain rotation curtain according to claim 4 filters range hood, it is characterised in that outside the blower (52)
Shell is equipped with the cooling fin (53) of radial arrangement, and the water cooling pipeline (31) is wound in cooling fin (53) periphery.
6. dual water curtain rotation curtain according to claim 5 filters range hood, it is characterised in that on the cooling fin (53)
Embedded groove (531) are offered, accordingly, the water cooling pipeline (31) is then embedded in embedded groove above-mentioned (531).
7. dual water curtain rotation curtain according to claim 5 filters range hood, it is characterised in that the water cooling pipeline (31)
In between the adjacent cooling fin (53) of S shape coiling.
8. dual water curtain rotation curtain according to claim 6 or 7 filters range hood, it is characterised in that the water cooling pipeline
(31) the two water cooling branches (311) connected side by side are included at least, two water cooling branches (311) above-mentioned surround an annulus and are set to
On the shell of blower (52).
9. dual water curtain rotation curtain according to claim 8 filters range hood, it is characterised in that the weeper (13) is certainly
Divide at least two rows of arrangements outside to inside, also, the weeper (13) of adjacent two rows is staggeredly arranged.
10. dual water curtain rotation curtain according to claim 1 filters range hood, it is characterised in that the smoke deflector (3a)
Edge circumferentially has the retaining section (31a) for being higher by upper surface, also, opens close to the retaining section (31a) of inboard neighbouring catchment cup (4)
Equipped with drainage hole (32a).
11. dual water curtain rotation curtain according to claim 10 filters range hood, it is characterised in that the smoke deflector (3a)
It is obliquely installed gradually downward from front to back.
12. dual water curtain rotation curtain according to claim 1 filters range hood, it is characterised in that the catchment cup (4)
With drainpipe (41), the range hood further includes the liquid reserve tank (6) being connected to water-supply-pipe, the water inlet end of the liquid reserve tank (6)
Drainpipe above-mentioned (41) are connected to constitute circulation loop, are equipped with circulating pump (7) in aforementioned circulation loop.
13. dual water curtain rotation curtain according to claim 1 filters range hood, it is characterised in that the water dispersing disc (2)
Edge, which extends outwardly, is provided with multiple axial blades (22) that aproll disc spins can be driven under ascending air effect, the axis stream leaf
Piece (22) is to be in tilted layout.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710701061.4A CN109404998A (en) | 2017-08-16 | 2017-08-16 | Dual water curtain rotation curtain filters range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710701061.4A CN109404998A (en) | 2017-08-16 | 2017-08-16 | Dual water curtain rotation curtain filters range hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109404998A true CN109404998A (en) | 2019-03-01 |
Family
ID=65454367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710701061.4A Withdrawn CN109404998A (en) | 2017-08-16 | 2017-08-16 | Dual water curtain rotation curtain filters range hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109404998A (en) |
-
2017
- 2017-08-16 CN CN201710701061.4A patent/CN109404998A/en not_active Withdrawn
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190301 |