CN109099482B - Self-cleaning range hood - Google Patents
Self-cleaning range hood Download PDFInfo
- Publication number
- CN109099482B CN109099482B CN201811094968.XA CN201811094968A CN109099482B CN 109099482 B CN109099482 B CN 109099482B CN 201811094968 A CN201811094968 A CN 201811094968A CN 109099482 B CN109099482 B CN 109099482B
- Authority
- CN
- China
- Prior art keywords
- air
- air pipe
- smoke
- pipe
- side suction
- 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.)
- Active
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 18
- 239000000779 smoke Substances 0.000 claims abstract description 80
- 230000007246 mechanism Effects 0.000 claims abstract description 61
- 239000003517 fume Substances 0.000 claims abstract description 24
- 238000009423 ventilation Methods 0.000 claims abstract description 22
- 238000009792 diffusion process Methods 0.000 claims description 5
- 230000008602 contraction Effects 0.000 claims description 4
- 230000007423 decrease Effects 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 2
- 230000002209 hydrophobic effect Effects 0.000 claims description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 8
- 239000007789 gas Substances 0.000 description 6
- 150000002500 ions Chemical class 0.000 description 6
- 239000000306 component Substances 0.000 description 5
- 238000000746 purification Methods 0.000 description 3
- 238000010411 cooking Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 239000004071 soot Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 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
- F24C15/2021—Arrangement or mounting of control or safety systems
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
Abstract
The invention discloses a self-cleaning range hood, which comprises a shell, a first smoke removing mechanism and a smoke absorbing mechanism, wherein the shell is provided with a first smoke removing mechanism; the shell is provided with a main ventilation opening, an exhaust opening and a plurality of side suction openings; the first smoke removing mechanism is positioned at a main ventilation opening in the shell; the fume suction mechanism comprises a first air pipe, a second air pipe, a fan and a side suction pipe; the first air pipe is connected with the first smoke removing mechanism, one end of the second air pipe is communicated with the first air pipe, the other end of the second air pipe is communicated with the side suction pipe, and the side suction pipe is communicated with the plurality of side suction openings; the fan is connected to the first air pipe. The invention sucks the oil smoke through the oil smoke sucking mechanism, and the oil smoke is removed through the first smoke sucking mechanism and the second smoke sucking mechanism, so that the oil smoke can be prevented from polluting the air, the oil smoke is prevented from damaging the health of a human body, and the two modes of the oil smoke sucking machine are controlled by the control valve, namely, the purified air is discharged indoors and the purified air is discharged indoors respectively, and the purified air is discharged outdoors.
Description
Technical Field
The invention relates to the technical field of kitchen appliances, in particular to a self-cleaning range hood.
Background
At present, the oil smoke pollution is serious, however, the current household appliance for treating the oil smoke, namely the smoke exhaust ventilator, stays on the embarrassing level of only discharging and not purifying for a long time. Another disadvantage caused by 'only not being discharged cleanly' of the smoke exhaust ventilator is that a large amount of oil dirt accumulated on the smoke exhaust ventilator cannot be cleaned in time, so that smoke is not discharged smoothly, and the discharge effect is affected.
At present, most smoke ventilators need to be cleaned after being used for half a year, but the workload of disassembly, cleaning and maintenance is large, and some core components are adhered by oil dirt and are not easy to clean, so that noise is harsher, and more dirt is discharged. The degree of pollution to the atmosphere by kitchen fumes which are directly discharged to the atmosphere without any treatment has been increasing for a long time. It is very important to see the fume purification.
The prior Chinese patent discloses a household ion oil fume exhaust purifier with the publication number of CN202569879U, which comprises a fume exhaust pipe, a muffler, an ion purification component and an oil box which are sequentially matched from top to bottom; an oil filter screen is obliquely arranged in front of the oil box; the turbine component which extends out of the oil box and is positioned in front of the ion purifying component is cooperatively arranged at the upper part of the inner side of the oil box. The ion purification component is arranged on the smoke exhaust pipe of the smoke exhaust ventilator, and the smoke enters the smoke exhaust ventilator or can pollute the fan easily, so that the fan is easy to damage.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to solve the technical problem of providing a self-cleaning range hood.
The technical scheme adopted by the invention for solving the technical problems is a self-cleaning range hood, which is characterized by comprising the following components:
A housing; the shell is provided with a main ventilation opening, an exhaust opening and a plurality of side suction openings;
a first smoke removal mechanism; the main ventilation opening is positioned in the shell;
An oil fume suction mechanism; the device comprises a first air pipe, a second air pipe, a fan and a side suction pipe; one end of the first air pipe is communicated with the first smoke removing mechanism, the other end of the first air pipe is communicated with the air outlet, one end of the second air pipe is communicated with the side body of the first air pipe, the other end of the second air pipe is communicated with a side suction pipe, and the side suction pipe is communicated with the plurality of side suction openings; the fan is connected to the first air pipe.
Preferably, a control valve is arranged in the first air pipe, and the control valve comprises a valve and a driving piece for driving the valve to open and close; the valve is positioned at one end of the first air pipe communicated with the air outlet.
Preferably, the first smoke removing mechanism comprises a first low-temperature plasma and a first air guide cavity, one end of the first air guide cavity is connected with the first low-temperature plasma, and the other end of the first air guide cavity is connected with a first air pipe.
Preferably, the fume exhaust mechanism further comprises a second fume exhaust mechanism; the second smoke removing mechanism is arranged in the second air pipe or the second smoke removing mechanism is arranged in the side suction pipe.
Preferably, the second smoke removing mechanism comprises a second low-temperature plasma and a second air guide cavity, and the second low-temperature plasma is located in the second air guide cavity.
Preferably, the diameter of the first air tube is greater than the diameter of the second air tube.
Preferably, the side ducts surround or semi-surround the main vent.
Preferably, the casing comprises a bottom plate, a coaming and a top plate; the main ventilation opening is positioned on the bottom plate; the exhaust port is located on the top plate, and the plurality of side suction ports are located on the coaming.
Preferably, both the first and second smoke-removing mechanisms are coated with a hydrophilic or hydrophobic coating.
Preferably, the first gas pipe comprises an upper end, a diffusion section, a contraction section and a lower end which are connected in sequence; the inner diameter of the contraction section gradually decreases from bottom to top, and the inner diameter of the diffusion section gradually increases from bottom to top.
The invention sucks the oil smoke through the oil smoke sucking mechanism, and the oil smoke is removed through the first smoke sucking mechanism and the second smoke sucking mechanism, so that the oil smoke can be prevented from polluting the air, the oil smoke is prevented from damaging the health of a human body, and the two modes of the oil smoke sucking machine are controlled by the control valve, namely, the purified air is discharged indoors and the purified air is discharged indoors respectively, and the purified air is discharged outdoors.
Drawings
Fig. 1 is a schematic perspective view of a self-cleaning range hood in an embodiment;
Fig. 2 is a schematic perspective view of another view angle of the self-cleaning range hood according to the embodiment;
fig. 3 is a schematic perspective view of a self-cleaning range hood in an embodiment with a top plate and a coaming removed;
FIG. 4 is a schematic perspective view of a control valve according to an embodiment;
FIG. 5 is a schematic view of a first smoke removing mechanism according to an embodiment;
Fig. 6 is a schematic structural diagram of the connection between the first air pipe and the second air pipe in the embodiment.
Detailed Description
The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
Referring to fig. 1-6, the present invention discloses a self-cleaning range hood, which is characterized by comprising a casing 100, a first smoke removing mechanism 200, a smoke absorbing mechanism 300 and a second smoke removing mechanism 360; the fume sucking mechanism 300 and the first fume exhausting mechanism 200 are positioned in the machine shell 100, the fume sucking mechanism 300 sucks fume, and when the fume sucking mechanism 300 sucks fume, the sucked fume is exhausted through the first fume exhausting mechanism 200 and the second fume exhausting mechanism 360; and the oil smoke emission can be avoided.
The housing 100 has a main vent 110, an exhaust port 120, and a plurality of side suction ports 130; the self-cleaning range hood can be applied to a kitchen, particularly when cooking, the main ventilation opening 110 is positioned right above a kitchen range, when the range hood mechanism 300 works, the main ventilation opening 110 can be used for absorbing most of oil smoke in the kitchen, a small amount of oil smoke escapes from the main ventilation opening 110, and the oil smoke can be absorbed through the side suction opening 130 on the side of the casing 100.
The first smoke removal mechanism 200 is located at the main vent 110 in the enclosure 100; the soot entering the cabinet 100 from the main ventilation opening 110 is removed by the first soot removing means 200.
The oil smoke sucking mechanism 300 comprises a first air pipe 310, a second air pipe 320, a fan 330 and a side suction pipe 340; one end of the first air pipe 310 is communicated with the first smoke removing mechanism, the other end of the first air pipe is communicated with the air outlet 120, one end of the second air pipe 320 is communicated with the side body of the first air pipe 310, the other end of the second air pipe is communicated with the side suction pipe 340, and the side suction pipe 340 is communicated with the plurality of side suction ports 130; the blower 330 is connected to the first air pipe 310.
In the operation process of the fume exhausting mechanism 300, the fan 330 is operated to suck air, the air enters the side suction pipe 340 from the side suction port 130, enters the second air pipe 320 and then enters the first air pipe 310, the air flowing into the first air pipe 310 causes the first air pipe 310 to generate negative pressure, and further the main ventilation opening 110 is sucked in, the first fume exhausting mechanism 200 removes the air sucked from the main ventilation opening 110, and the air passing through the first fume exhausting mechanism 200 is discharged from the air outlet 120.
A control valve 350 is disposed in the first air pipe 310, and the control valve 350 includes a valve 351 and a driving member 352 for driving the valve 351 to open and close; the valve 351 is positioned at an end of the first air pipe 310 communicating with the air outlet 120, in particular, when the valve 351 is opened by the driving member 352, the air outlet 120 can discharge air entering the first air pipe 310 from the main air vent 110 and the side air vent 130, and when the valve 351 is closed by the driving member 352, the fume sucking mechanism 300 sucks air from the side air vent 130 and discharges the air from the main air vent 110.
The valve 351 is controlled to be opened and closed by the control valve 350, so that the range hood of the present invention has two modes, the first mode is that the valve 351 is opened, the range hood mechanism 300 sucks air through the main ventilation opening 110 and the side suction opening 130 and discharges the air through the air outlet 120, and in a specific implementation, the air outlet 120 can be communicated with the outside through a pipeline, namely, the first mode is that the air is absorbed and purified and discharged to the outside, and the mode is relatively suitable for the condition being cooked. In the second mode, the valve 351 is closed, the valve 351 closes the air outlet 120, and the range hood 300 sucks air through the side air inlet 130 and discharges the air through the main air outlet 110, which is more suitable for the post-cooking situation.
The smoke evacuation mechanism 300 further includes a second smoke evacuation mechanism 360; the second smoke removing means 360 is provided in the second air pipe 320, or the second smoke removing means 360 is provided in the side suction pipe 340; the second smoke removing means 360 serves to purify the air sucked from the side suction port 130.
The first smoke removing mechanism 200 includes a first low-temperature plasma 210 and a first air guiding cavity 220, one end of the first air guiding cavity 220 is connected with the first low-temperature plasma 210, the other end of the first air guiding cavity is connected with the first air pipe 310, the first low-temperature plasma 210 can carbonize oil smoke, and air purified by the first low-temperature plasma 210 enters the first air pipe 310 through the first air guiding cavity 220.
The first smoke removing mechanism 200 and the second smoke removing mechanism 360 generate electric fields, the electric fields decompose oil smoke to generate dregs and ozone, and specifically speaking, the first smoke removing mechanism 200 and the second smoke removing mechanism 360 comprise positive plates and negative electrode wires, electrons can be released by the negative electrode wires, the oil smoke is ionized, so that the oil smoke is decomposed into negative ions which are attracted by the positive plates, and the negative ions are powered off to generate dregs and ozone.
The dross is adsorbed on the positive electrode plate, specifically, the dross is in a solid state, and thus, the dross is fully adsorbed on the positive electrode plate.
The ozone is exhausted to the kitchen through the exhaust port to disinfect and sterilize the kitchen, specifically, the gas exhausted from the exhaust port can be exhausted to the kitchen or can be exhausted to the outside of the kitchen, two air outlets are also arranged, one is used for exhausting the gas to the kitchen, the other is exhausted to the kitchen, the two air outlets are controlled by the control valve 350, so that the gas in the range hood can be exhausted from the two air outlets in a switchable manner, that is, the gas in the range hood can be exhausted to the kitchen or can be exhausted to the outside of the kitchen, the two air outlets are communicated, and the control valve 350 is a butterfly valve.
The first gas pipe 310 includes an upper end 311, a diffuser section 312, a constriction section 313 and a lower end 314 connected in sequence; the inner diameter of the constriction 313 gradually decreases from bottom to top, and the inner diameter of the diffusion 312 gradually increases from bottom to top.
The diameter of the junction between the diffuser and the constriction in the first air pipe 310 is larger than the diameter of the second air pipe 320, so that the air intake of the main ventilation opening 110 can be enlarged, specifically, when the blower 330 is operated, the side air intake 130 sucks air and discharges the air to the first air pipe 310 through the second air pipe 320, so that the first air pipe 310 generates negative pressure, and the first air pipe 310 sucks air (in this embodiment, sucks air through the main ventilation opening 110). The diameter of the first air pipe 310 is larger than that of the second air pipe 320, and the amount of air sucked by the first air pipe 310 is also larger than that of the blower 330.
The side suction pipe 340 surrounds or semi-surrounds the main ventilation opening 110, the suction from the side suction port 130 mainly sucks the oil smoke escaping from the vicinity of the main ventilation opening 110, and the side suction port 130 is communicated with the side suction pipe 340, that is, the side suction port 130 is located at the periphery of the semi-ventilation opening.
The housing 100 includes a bottom plate, a shroud, and a top plate; the main vent 110 is located on the floor; the exhaust port 120 is located on the roof and the plurality of side suction ports 130 are located on the shroud.
The range hood can be applied to a kitchen, the range hood cleans oil smoke, the valve 351 of the control valve 350 is in an open state, the fan 330 is started, the side suction port 130 sucks air firstly, the main ventilation port 110 sucks air afterwards, and the air is discharged out of the kitchen through the air outlet 120.
The valve 351 of the control valve 350 is in a closed state, the side suction port 130 sucks air and is discharged into the kitchen through the main ventilation opening 110, so that the internal circulation of the clean kitchen is realized, ozone is generated and released into the kitchen, and the kitchen is sterilized.
In order to reasonably utilize ozone, a human body sensor can be arranged in a kitchen, the opening and closing of a valve 351 in a control valve 350 are controlled through the human body sensor, a person enters the kitchen, in order to avoid ozone from damaging the body health of the person, the human body sensor promotes the valve 351 to be opened, ozone is pumped out of the kitchen, the human body is not in the kitchen, the valve 351 can be closed, the range hood generates ozone, and the kitchen is sterilized.
The present invention sucks the oil smoke through the oil smoke sucking mechanism 300, and removes the oil smoke through the first and second oil smoke sucking mechanisms 200 and 360, so that it is possible to prevent the oil smoke from polluting the air, and to prevent the oil smoke from damaging the health of the human body, and to control the two modes of the oil smoke sucking machine by the control valve 350, respectively, to discharge the purified air into the room and the purified air into the room, and to discharge the purified air out of the room.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (6)
1. A self-cleaning range hood, comprising:
A housing; the shell is provided with a main ventilation opening, an exhaust opening and a plurality of side suction openings;
a first smoke removal mechanism; the main ventilation opening is positioned in the shell;
an oil fume suction mechanism; the device comprises a first air pipe, a second air pipe, a fan and a side suction pipe; one end of the first air pipe is communicated with the first smoke removing mechanism, the other end of the first air pipe is communicated with the air outlet, one end of the second air pipe is communicated with the side body of the first air pipe, the other end of the second air pipe is communicated with a side suction pipe, and the side suction pipe is communicated with the plurality of side suction openings; the fan is connected to the second air pipe;
A control valve is arranged in the first air pipe and comprises a valve and a driving piece for driving the valve to open and close; the valve is positioned at one end of the first air pipe communicated with the air outlet;
the fume sucking mechanism also comprises a second fume exhausting mechanism; the second smoke removing mechanism is arranged in a second air pipe or the second smoke removing mechanism is arranged in the side suction pipe;
the shell comprises a bottom plate, a coaming and a top plate; the main ventilation opening is positioned on the bottom plate; the exhaust port is positioned on the top plate, and the plurality of side suction ports are positioned on the coaming;
The first air pipe comprises an upper end, a diffusion section, a contraction section and a lower end which are connected in sequence; the inner diameter of the contraction section gradually decreases from bottom to top, and the inner diameter of the diffusion section gradually increases from bottom to top.
2. A self-cleaning range hood according to claim 1, characterized in that: the first smoke removing mechanism comprises first low-temperature plasma and a first air guide cavity, one end of the first air guide cavity is connected with the first low-temperature plasma, and the other end of the first air guide cavity is connected with a first air pipe.
3. A self-cleaning range hood according to claim 1, characterized in that: the second smoke removing mechanism comprises second low-temperature plasma and a second air guide cavity, and the second low-temperature plasma is located in the second air guide cavity.
4. A self-cleaning range hood according to claim 1, characterized in that: the diameter of the first air pipe is larger than that of the second air pipe.
5. A self-cleaning range hood according to claim 1, characterized in that: the side ducts surround or semi-surround the main vent.
6. A self-cleaning range hood according to claim 1, characterized in that: the first smoke removing mechanism and the second smoke removing mechanism are coated with hydrophilic or hydrophobic coatings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811094968.XA CN109099482B (en) | 2018-09-19 | 2018-09-19 | Self-cleaning range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811094968.XA CN109099482B (en) | 2018-09-19 | 2018-09-19 | Self-cleaning range hood |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109099482A CN109099482A (en) | 2018-12-28 |
| CN109099482B true CN109099482B (en) | 2024-05-14 |
Family
ID=64866730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811094968.XA Active CN109099482B (en) | 2018-09-19 | 2018-09-19 | Self-cleaning range hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109099482B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111686579A (en) * | 2020-06-22 | 2020-09-22 | 东华大学 | Efficient and rapid toilet air disinfection device and using method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2548044Y (en) * | 2002-06-07 | 2003-04-30 | 殷延铎 | Health-care type kitchen hood |
| CN204534753U (en) * | 2014-03-28 | 2015-08-05 | 广东顺德东方麦田工业设计有限公司 | Mist extractor purified air integrated machine |
| CN205783189U (en) * | 2016-05-27 | 2016-12-07 | 宁波方太厨具有限公司 | A kind of control system of open air in kitchen environment |
| CN107327889A (en) * | 2017-08-23 | 2017-11-07 | 上海多环油烟净化设备有限公司 | Dual-purpose type circularly purifying machine |
| CN107461785A (en) * | 2017-09-26 | 2017-12-12 | 宗海燕 | A kind of nearly kitchen hood |
| CN209325856U (en) * | 2018-09-19 | 2019-08-30 | 浙江欧琳生活健康科技有限公司 | A kind of automatically cleaning range hood |
-
2018
- 2018-09-19 CN CN201811094968.XA patent/CN109099482B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2548044Y (en) * | 2002-06-07 | 2003-04-30 | 殷延铎 | Health-care type kitchen hood |
| CN204534753U (en) * | 2014-03-28 | 2015-08-05 | 广东顺德东方麦田工业设计有限公司 | Mist extractor purified air integrated machine |
| CN205783189U (en) * | 2016-05-27 | 2016-12-07 | 宁波方太厨具有限公司 | A kind of control system of open air in kitchen environment |
| CN107327889A (en) * | 2017-08-23 | 2017-11-07 | 上海多环油烟净化设备有限公司 | Dual-purpose type circularly purifying machine |
| CN107461785A (en) * | 2017-09-26 | 2017-12-12 | 宗海燕 | A kind of nearly kitchen hood |
| CN209325856U (en) * | 2018-09-19 | 2019-08-30 | 浙江欧琳生活健康科技有限公司 | A kind of automatically cleaning range hood |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109099482A (en) | 2018-12-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2005513407A (en) | Kitchen exhaust hood | |
| WO2013033921A1 (en) | Ventilating and internally-circulating slim extractor hood | |
| CN107435961B (en) | Oil fume suction system for open kitchen | |
| CN109099482B (en) | Self-cleaning range hood | |
| CN216384296U (en) | Air purifying equipment | |
| CN109869779B (en) | Kitchen air quality centralized management system | |
| CN209325856U (en) | A kind of automatically cleaning range hood | |
| CN109323311A (en) | A kind of integrated kitchen range capable of purifying air | |
| JP2005283060A (en) | Circulation type air treatment unit for kitchen | |
| CN210187420U (en) | Commercial integral type clarifier | |
| CN212457267U (en) | A ward ventilation unit for infectious department | |
| CN205425084U (en) | Stationary flow grease trap | |
| CN209744588U (en) | Air purification system for stokehole area of cremation room of funeral parlor | |
| KR20110040454A (en) | Kitchen exhaust system | |
| CN209325857U (en) | A kind of integrated kitchen range capable of purifying air | |
| CN209540967U (en) | A kind of top suction type kitchen ventilator | |
| CN214664650U (en) | Noiseless smoke ventilator based on vacuum system | |
| CN210966299U (en) | Laboratory energy-saving spraying ventilation cabinet | |
| CN219243658U (en) | Down-draft type oil smoke treatment system | |
| CN110068031B (en) | Kitchen ventilator without blades and with exhaust openings controlled respectively | |
| CN215765299U (en) | Smoke-free pipe internal circulation smoke exhaust ventilator | |
| CN219618876U (en) | Vehicle-mounted purifying device | |
| CN217964004U (en) | Noise-reduction sterilization ventilation cabinet | |
| CN217665298U (en) | No tuber pipe is from clean type cabinet of airing exhaust | |
| CN220235668U (en) | Deodorization sterilizing equipment is used to combined type pig house |
Legal Events
| 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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |