CN112432218A - Efficient self-cleaning lampblack absorber - Google Patents
Efficient self-cleaning lampblack absorber Download PDFInfo
- Publication number
- CN112432218A CN112432218A CN202011522660.8A CN202011522660A CN112432218A CN 112432218 A CN112432218 A CN 112432218A CN 202011522660 A CN202011522660 A CN 202011522660A CN 112432218 A CN112432218 A CN 112432218A
- Authority
- CN
- China
- Prior art keywords
- cavity
- air exhaust
- air
- cleaning
- motor
- 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- Withdrawn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
- 238000004140 cleaning Methods 0.000 title claims abstract description 57
- 239000006096 absorbing agent Substances 0.000 title claims description 3
- 239000006233 lamp black Substances 0.000 title claims description 3
- 238000000746 purification Methods 0.000 claims abstract description 17
- 238000002347 injection Methods 0.000 claims description 18
- 239000007924 injection Substances 0.000 claims description 18
- 230000017105 transposition Effects 0.000 claims description 16
- 238000005406 washing Methods 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 239000000779 smoke Substances 0.000 claims description 5
- 238000000151 deposition Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Classifications
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- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/68—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements
- B01D46/681—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements by scrapers, brushes or the like
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- B08B1/165—
-
- B08B1/20—
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
- F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
Abstract
The invention discloses an efficient automatic cleaning range hood, which comprises a hood body and an air exhaust cavity in the hood body, wherein the bottom wall of the air exhaust cavity is bilaterally and symmetrically provided with air exhaust ports communicated with the outside, a filter screen is arranged in each air exhaust port, an air exhaust motor is arranged in each air exhaust cavity, the lower end of each air exhaust motor is in power connection with an air exhaust motor shaft, a fan is fixedly arranged on each air exhaust motor shaft, a purification cavity is arranged in the hood body and positioned above the air exhaust cavity, and a purification device is arranged in each purification cavity. The working efficiency of the range hood is improved.
Description
Technical Field
The invention relates to an efficient automatic cleaning range hood, and mainly relates to the technical field of range hoods.
Background
A range hood is an electric appliance for sucking and cleaning oil fume generated during cooking in a household kitchen, not only can well complete the functional function, but also has the decoration concept of fusing the modern kitchen pattern, but a filter screen and a fan of the range hood are always stained with certain stains after long-term use, so that the normal use of the range hood is influenced, the range hood is easily influenced by external air flow, and an air curtain machine is adopted for protection in the prior art, when the air curtain machine is high in cost and large in occupied space, and the range hood is improved aiming at the defects.
Disclosure of Invention
The invention aims to solve the technical problem of providing an efficient automatic cleaning range hood, and overcomes the problems.
The invention is realized by the following technical scheme.
The invention relates to an efficient automatic cleaning range hood, which comprises a machine body and an air exhaust cavity in the machine body, wherein the bottom wall of the air exhaust cavity is symmetrically provided with air exhaust ports communicated with the outside, a filter screen is arranged in each air exhaust port, an air exhaust motor is arranged in each air exhaust cavity, the lower end of the air exhaust motor is in power connection with an air exhaust motor shaft, a fan is fixedly arranged on each air exhaust motor shaft, a purification cavity is arranged in the machine body and positioned at the upper side of each air exhaust cavity, a purification device is arranged in each purification cavity and can purify treated air, an air exhaust cavity is arranged in the machine body and positioned at the left side of each purification cavity, a through hole penetrating through the air exhaust cavity and the purification cavity is formed in the machine body, a battery is arranged in the right wall of the air exhaust cavity, the left end of the battery is in power connection with an impeller shaft, an impeller is fixedly arranged on the impeller shaft, a fan cleaning cavity is arranged in the machine body and positioned at two sides of the air exhaust cavity, a first chute is arranged on the top wall of the fan cleaning cavity, a rack is arranged on the first chute in a sliding manner, a spring is connected between the rack and the rear wall of the first chute, a gear shaft is arranged in the fan cleaning cavity in a rotating manner, a first gear meshed with the rack is fixedly arranged on the gear shaft, a second chute is arranged in the fan cleaning cavity, a first fixed block is arranged on the second chute in a sliding manner, a first large gear is fixedly arranged on the first fixed block, a lead screw is arranged in the first large gear, a first scraper is fixedly arranged at the tail end of the lead screw, a first cleaning opening communicated with the air exhaust cavity is arranged in the fan cleaning cavity, the tail end of the lead screw extends into the air exhaust cavity through the first cleaning opening, and a cam shaft is rotatably arranged on the top wall of the fan cleaning cavity, the machine body is internally provided with an air injection device which can inject air out, an air pipe is connected between the air injection cavity and the exhaust cavity, a transposition motor is arranged in the machine body, the lower end of the transposition motor is connected with a transposition motor shaft in a power mode, a second gear meshed with the second gear is fixedly arranged on the transposition motor shaft, and a cleaning box positioned between the air extraction ports is arranged in the machine body, be equipped with the second in the washing case and wash the chamber, be equipped with on the wall about the second washs the chamber with external intercommunication, be equipped with the washing motor on the second washs the chamber diapire, washing motor upper end power is connected with the carousel axle, the epaxial fixed carousel that is equipped with of carousel, the fixed cylinder that is equipped with on the carousel, the terminal fixed storage chamber that is equipped with of cylinder telescopic link, the fixed second scraper blade that is equipped with in storage chamber rear end, be equipped with in the organism and be located the dirty chamber of depositing of second washing chamber rear side, deposit and be equipped with the push pedal in the dirty chamber, deposit dirty chamber upper end opening.
Furthermore, be equipped with first electronic slide rail on the exhaust chamber diapire, it is equipped with first slider to slide on the first electronic slide rail, first slider can control the gas vent with tracheal switch.
Furthermore, a treatment device is arranged in the purification cavity, and the treatment device can perform secondary treatment on the oil smoke.
Further, be equipped with the spout that runs through on the storage chamber diapire, the spout downside is equipped with the third spout, it is equipped with the slide to slide on the third spout, the slide can control the switch of spout.
Furthermore, a second electric sliding rail is arranged on the base, a second sliding block is arranged on the second electric sliding rail in a sliding mode, and the second sliding block can control the switch.
Furthermore, wires are arranged between the battery and the transposition motor and between the battery and the cleaning motor.
The invention has the beneficial effects that: the invention can reprocess the air after the oil smoke is processed, and utilize the exhausted air to supply power for the device, and can automatically clean the fan and the filter screen of the device, reduce the influence on the work of the range hood during cleaning, collect the dirt without influencing the food, and simultaneously the device can utilize the purified air to block the external air when the external air exists, thereby improving the working efficiency of the range hood.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of the structure a-a in fig. 1.
FIG. 3 is a schematic diagram of B-B in FIG. 1.
Fig. 4 is an enlarged schematic view of C in fig. 1.
Fig. 5 is a schematic diagram of the structure of D-D in fig. 4.
Fig. 6 is a schematic diagram of structure E in fig. 1.
Detailed Description
The invention will now be described in detail with reference to fig. 1-6, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
The efficient automatic cleaning range hood described in conjunction with the attached fig. 1-6 comprises a body 10 and an air extracting cavity 12 in the body 10, wherein the air extracting ports 43 communicated with the outside are symmetrically arranged on the bottom wall of the air extracting cavity 12 from left to right, a filter screen 44 is arranged in the air extracting port 43, an air extracting motor 70 is arranged in the air extracting cavity 12, the lower end of the air extracting motor 70 is in power connection with an air extracting motor shaft 42, a fan 41 is fixedly arranged on the air extracting motor shaft 42, a purifying cavity 11 positioned on the upper side of the air extracting cavity 12 is arranged in the body 10, a purifying device 13 is arranged in the purifying cavity 11, the purifying device 13 can purify the processed air, an air exhausting cavity 17 positioned on the left side of the purifying cavity 11 is arranged in the body 10, a penetrating port 16 is arranged between the air exhausting cavity 17 and the purifying cavity 11, and a battery 20 is arranged in the right wall of the, the left end power of the battery 20 is connected with an impeller shaft 19, an impeller 18 is fixedly arranged on the impeller shaft 19, an exhaust port 36 communicated with the outside is formed in the left wall of the exhaust cavity 17, a fan cleaning cavity 15 located on two sides of the exhaust cavity 12 is arranged in the machine body 10, a first sliding groove 22 is formed in the top wall of the fan cleaning cavity 15, a rack 23 is arranged on the first sliding groove 22 in a sliding manner, a spring 57 is connected between the rack 23 and the rear wall of the first sliding groove 22, a gear shaft 24 is arranged in the fan cleaning cavity 15 in a rotating manner, a first gear 33 meshed with the rack 23 is fixedly arranged on the gear shaft 24, a second sliding groove 67 is formed in the fan cleaning cavity 15, a first fixing block 68 is arranged on the second sliding groove 67 in a sliding manner, a first gearwheel 25 is fixedly arranged on the first fixing block 68, a screw rod 26 is arranged in the first gearwheel 25, and a first scraper 34 is fixedly arranged at the tail end of, a first cleaning opening 35 communicated with the air extracting cavity 12 is arranged in the fan cleaning cavity 15, the tail end of the screw rod 26 extends into the air extracting cavity 12 through the first cleaning opening 35, a cam shaft 59 is rotatably arranged on the top wall of the fan cleaning cavity 15, a cam 58 is fixedly arranged on the cam shaft 59, the cam 58 abuts against the rack 23, a belt pulley 40 is connected between the cam shaft 59 and the air extracting motor shaft 42, an air injection cavity 27 positioned at two sides of the air extracting opening 43 is arranged in the machine body 10, a third sliding groove 31 is arranged on the bottom wall of the air injection cavity 27, a second fixing block 29 is slidably arranged on the third sliding groove 31, a second large gear 28 is fixedly arranged on the second fixing block 29, an air injection opening 32 penetrating up and down is arranged in the second large gear 28, an air injection device 30 is arranged in the machine body 10, and the air injection device 30 can inject air, an air pipe 39 is connected between the air injection cavity 27 and the exhaust cavity 17, a transposition motor 54 is arranged in the air injection cavity 27, the lower end of the transposition motor 54 is in power connection with a transposition motor shaft 55, a second gear 56 meshed with the second gearwheel 28 is fixedly arranged on the transposition motor shaft 55, a cleaning box 46 positioned between the air pumping holes 43 is arranged in the machine body 10, a second cleaning cavity 48 is arranged in the cleaning box 46, a second cleaning hole 62 communicated with the outside is arranged on the left wall and the right wall of the second cleaning cavity 48, a cleaning motor 60 is arranged on the bottom wall of the second cleaning cavity 48, the upper end of the cleaning motor 60 is in power connection with a turntable shaft 53, a turntable 49 is fixedly arranged on the turntable shaft 53, an air cylinder 52 is fixedly arranged on the turntable 49, a storage cavity 50 is fixedly arranged at the tail end of an expansion rod of the air cylinder 52, and a second scraper 51 is fixedly arranged at the rear end of the, be equipped with in the organism 10 and be located deposit dirty chamber 45 of second washing chamber 48 rear side, deposit and be equipped with push pedal 47 in the dirty chamber 45, deposit dirty chamber 45 upper end opening.
Advantageously, a first electric slide rail 38 is provided on the bottom wall of the exhaust cavity 17, and a first slide block 37 is slidably provided on the first electric slide rail 38, wherein the first slide block 37 can control the opening and closing of the exhaust port 36 and the air pipe 39.
Advantageously, a treatment device 14 is provided in the purification chamber 11, and the treatment device 14 can perform secondary treatment on the oil smoke.
Advantageously, a through spout 64 is provided in the bottom wall of the storage chamber 50, a third slide groove 66 is provided on the underside of the spout 64, and a slide plate 65 is slidably provided on the third slide groove 66, and the slide plate 65 can control the opening and closing of the spout 64.
Advantageously, a second electric slide rail 63 is arranged on the second cleaning opening 62, a second slide block 61 is slidably arranged on the second electric slide rail 63, and the second slide block 61 can control the opening and closing of the second cleaning opening 62.
Advantageously, a wire 21 is provided between the battery 20 and the transposing motor 54 and the washing motor 60.
Sequence of mechanical actions of the whole device:
the air extracting motor 70 is started to drive the air extracting motor shaft 42 and the fan 41 to rotate so as to suck oil smoke into the device through the air extracting opening 43 and the filter screen 44, then air is purified through the processing device 14 and the purifying device 13, the air enters the exhaust cavity 17 through the through opening 16 and is exhausted through the exhaust opening 36, the air flows through the air and drives the impeller 18 and the impeller shaft 19 to rotate so as to charge the battery 20, the air extracting motor shaft 42 drives the cam shaft 59 and the cam 58 to rotate through the belt pulley 40 when rotating so as to push the rack 23 to move backwards along the first chute 22 and compress the spring 57, thereby driving the first gear 33 and the first gearwheel 25 to rotate, so that the screw rod 26 moves inwards, so that the first scraper 34 extends inwards, the first scraper 34 scrapes oil stains and dirt on the blades of the fan 41 when the fan 41 rotates, so as to scrape more dirt and not to obstruct the normal operation of the range hood, when the cam 58 continuously rotates, the rack 23 returns to the initial position along the first sliding slot 22 under the action of the spring 57, so that the first scraper 34 repeatedly moves, so that the fan 41 is more thoroughly cleaned, the second slider 61 moves downwards along the second electric slide rail 63 to open the second cleaning opening 62, the air cylinder 52 pushes the storage chamber 50 and the second scraper 51 to move outwards, the cleaning motor 60 is started to drive the turntable shaft 53 and the turntable 49 to rotate, so that the second scraper 51 scrapes off dirt on the filter screen 44 and falls into the storage chamber 50, when the turntable 49 moves to the upper side of the dirt storage chamber 45, the push plate 47 pushes the sliding plate 65 to move along the third sliding slot 66, so that the pouring opening 64 is opened, so that the dirt in the storage chamber 50 falls into the dirt storage chamber 45 through the pouring opening 64, when external wind exists, the transposition motor 54 is started to drive the transposition motor shaft 55, the second gear 56 and the second large gear 28 to rotate, so that the air injection opening 32 moves to the corresponding position, the first slider 37 moves along the first electric slide rail 38 to block the air outlet 36 and open the air pipe 39, and the purified air enters the air injection chamber 27 through the air pipe 39 and is injected through the air injection port 32 and the air injection device 30 to block the external air flow.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides an efficient self-cleaning lampblack absorber, includes the organism and the air exhaust chamber in the organism, its characterized in that: the bottom wall of the air exhaust cavity is symmetrically provided with air exhaust ports communicated with the outside, a filter screen is arranged in each air exhaust port, an air exhaust motor is arranged in each air exhaust cavity, the lower end of each air exhaust motor is in power connection with an air exhaust motor shaft, a fan is fixedly arranged on each air exhaust motor shaft, a purification cavity is arranged in the machine body and positioned on the upper side of each air exhaust cavity, a purification device is arranged in each purification cavity and can purify the processed air, an air exhaust cavity is arranged in the machine body and positioned on the left side of the purification cavity, a penetrating port penetrating through the air exhaust cavity and the purification cavity is arranged between the air exhaust cavity and the purification cavity, a battery is arranged in the right wall of the air exhaust cavity, the left end of the battery is in power connection with an impeller shaft, an impeller is fixedly arranged on the impeller shaft, an air exhaust port communicated with the outside is arranged on the left wall, a first chute is arranged on the top wall of the fan cleaning cavity, a rack is arranged on the first chute in a sliding manner, a spring is connected between the rack and the rear wall of the first chute, a gear shaft is arranged in the fan cleaning cavity in a rotating manner, a first gear meshed with the rack is fixedly arranged on the gear shaft, a second chute is arranged in the fan cleaning cavity, a first fixed block is arranged on the second chute in a sliding manner, a first big gear is fixedly arranged on the first fixed block, a lead screw is arranged in the first big gear, a first scraper plate is fixedly arranged at the tail end of the lead screw, a first cleaning opening communicated with the air exhaust cavity is arranged in the fan cleaning cavity, the tail end of the lead screw extends into the air exhaust cavity through the first cleaning opening, a cam shaft is arranged on the top wall of the fan cleaning cavity in a rotating manner, a cam is fixedly arranged on the cam shaft, and abuts against the rack, a belt pulley is connected between the camshaft and the air exhaust motor shaft, air injection cavities positioned at two sides of the air exhaust opening are arranged in the machine body, a third chute is arranged on the bottom wall of the air injection cavity, a second fixed block is arranged on the third chute in a sliding manner, a second large gear is fixedly arranged on the second fixed block, an air injection opening penetrating up and down is arranged in the second large gear, an air injection device is arranged in the machine body and can inject air out, an air pipe is connected between the air injection cavity and the air exhaust cavity, a transposition motor is arranged in the machine body, the lower end of the transposition motor is dynamically connected with a transposition motor shaft, a second gear meshed with the second large gear is fixedly arranged on the transposition motor shaft, a cleaning box positioned between the air exhaust openings is arranged in the machine body, a second cleaning cavity is arranged in the cleaning box, and the left wall and the right wall of the second cleaning cavity are communicated, be equipped with the washing motor on the second washs the chamber bottom wall, washing motor upper end power connection has the carousel axle, the epaxial fixed carousel that is equipped with of carousel, the fixed cylinder that is equipped with on the carousel, the terminal fixed storage chamber that is equipped with of cylinder telescopic link, the fixed second scraper blade that is equipped with in storage chamber rear end, be equipped with in the organism and be located the dirty chamber of depositing of second washing chamber rear side, deposit and be equipped with the push pedal in the dirty chamber, deposit dirty chamber upper end opening.
2. An efficient automatic cleaning range hood according to claim 1, characterized in that: be equipped with first electronic slide rail on the exhaust chamber diapire, it is equipped with first slider to slide on the first electronic slide rail, first slider can control the gas vent with tracheal switch.
3. An efficient automatic cleaning range hood according to claim 1, characterized in that: and a treatment device is arranged in the purification cavity and can carry out secondary treatment on the oil smoke.
4. An efficient automatic cleaning range hood according to claim 1, characterized in that: be equipped with the spout that runs through on the storage chamber diapire, the spout downside is equipped with the third spout, it is equipped with the slide to slide on the third spout, the slide can control the switch of spout.
5. An efficient automatic cleaning range hood according to claim 1, characterized in that: the upper portion of the second electric sliding rail is provided with a second sliding block in a sliding mode, and the second sliding block can control the switch.
6. An efficient automatic cleaning range hood according to claim 1, characterized in that: and a lead is arranged between the battery and the transposition motor and between the battery and the cleaning motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011522660.8A CN112432218A (en) | 2020-12-21 | 2020-12-21 | Efficient self-cleaning lampblack absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011522660.8A CN112432218A (en) | 2020-12-21 | 2020-12-21 | Efficient self-cleaning lampblack absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112432218A true CN112432218A (en) | 2021-03-02 |
Family
ID=74696845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011522660.8A Withdrawn CN112432218A (en) | 2020-12-21 | 2020-12-21 | Efficient self-cleaning lampblack absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112432218A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113731060A (en) * | 2021-08-27 | 2021-12-03 | 朱志辉 | Environment-friendly polluted atmosphere purification treatment device with sealing structure |
-
2020
- 2020-12-21 CN CN202011522660.8A patent/CN112432218A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113731060A (en) * | 2021-08-27 | 2021-12-03 | 朱志辉 | Environment-friendly polluted atmosphere purification treatment device with sealing structure |
| CN113731060B (en) * | 2021-08-27 | 2024-01-16 | 重庆连裕智能科技有限公司 | Environment-friendly polluted atmosphere purifying treatment device with sealing structure |
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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 | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210302 |
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| WW01 | Invention patent application withdrawn after publication |