CN115183372A - Air purification device for textile workshop - Google Patents
Air purification device for textile workshop Download PDFInfo
- Publication number
- CN115183372A CN115183372A CN202210849376.4A CN202210849376A CN115183372A CN 115183372 A CN115183372 A CN 115183372A CN 202210849376 A CN202210849376 A CN 202210849376A CN 115183372 A CN115183372 A CN 115183372A
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- Prior art keywords
- wall
- filter
- dust
- air
- cover
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- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/39—Monitoring filter performance
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/80—Self-contained air purifiers
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention relates to the technical field of air purification, in particular to an air purification device for a textile workshop, which comprises an installation seat, wherein a box body is arranged on the outer wall of the installation seat, a driving piece penetrates through and is fixedly arranged on the outer wall of the box body, a filter disc is arranged at the driving end of the driving piece, filter openings which are distributed in an annular shape at equal intervals are formed in the outer wall of the filter disc, filter screens are arranged on the inner walls of the filter openings, filter cotton is arranged between every two adjacent filter screens, a limiting plate is arranged on the inner wall of the box body, the filter disc is rotatably arranged in the limiting plate, an air inlet cylinder penetrates through and is fixedly arranged on the outer wall of one side of the box body, an air inlet cover is arranged at one end of the air inlet cylinder, a fixed cover is arranged at the other end of the air inlet cylinder, and the end of the fixed cover is attached to the outer wall of the filter disc. The automatic cleaning device can realize automatic cleaning of the filter cotton, so that the filter cotton can be continuously recycled, normal work of the device is not influenced in the cleaning process, and the using effect is better.
Description
Technical Field
The invention relates to the technical field of air conditioning, in particular to an air purification device for a textile workshop.
Background
Workers who produce in a textile workshop live in the air with high-concentration dust everyday, lungs and respiratory tracts are greatly damaged, and the lungs and the respiratory tracts of a large number of workers are more or less diseased, so that the air purification device is very important in purifying the air in the textile workshop.
At present, current air purification device still has certain weak point, in the use, when the more dust of filtering in the device, can lead to air flow rate to reduce, just so need the closing means to come into operation again after dust clearance this moment, and efficiency is very low, consequently, need to design an air purification device for weaving workshop to solve above-mentioned problem urgently.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides an air purification device for a textile workshop.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides an air purification device for textile workshop, includes the mount pad, the outer wall of mount pad is provided with the box, and the outer wall of box runs through the fixed driving piece that is provided with, the drive end of driving piece is provided with the filter disc, the outer wall of filter disc sets up the filtration mouth that the equidistance is the annular and distributes, and the inner wall of filtering the mouth is provided with the filter screen, and is adjacent be provided with the filter pulp between the filter screen, the inner wall of box is provided with the limiting plate, and the filter disc rotates and set up in the limiting plate, one side outer wall of box runs through the fixed admission cylinder that is provided with, and the one end of admission cylinder is provided with the suction hood, the other end of admission cylinder is provided with fixed cover, and the tip of fixed cover and the outer wall of filter disc laminate mutually, the opposite side outer wall of box runs through the fixed air discharge hood that is provided with, and be provided with fan I in the air discharge hood, the outer wall of air discharge hood is provided with the blast pipe, still includes:
the dust removal mechanism is arranged on the outer wall of the driving piece and used for pumping out air in the box body and acting on the filtering port;
the dust hood, the cover mouth department of dust hood and the outer wall of filter disc are laminated mutually, the tip intercommunication of dust hood has the dust collecting tube, and the dust collecting tube passes through the bracing piece and fixes the outer wall that sets up in the box, the other end of dust collecting tube is provided with the dust bag.
As a still further scheme of the invention: dust removal mechanism is including setting up in the dust excluding hood of driving piece outer wall, and the cover mouth department of dust excluding hood and the outer wall of filter disc laminate mutually, be provided with fan two in the dust excluding hood, the dust excluding hood is connected with the box body through the connecting pipe, and is linked together through the exhaust column between box body and the box, the outer wall of exhaust column is provided with the check valve.
As a still further scheme of the invention: the inner wall of dust excluding hood is provided with the equidistance and is the installation pole that the annular distributes, and the outer wall rotation of installation pole is provided with the rotary drum, the outer wall of rotary drum is provided with the equidistance and is the flabellum that the annular distributes, the tip of flabellum is connected with the striking ball through the elastic component.
As a still further scheme of the invention: the fixed baffle that is provided with of inner wall of mount pad, and the outer wall of baffle has seted up a plurality of bleeder vents, the outer wall of baffle still runs through and is provided with the movable rod, the one end of movable rod is provided with the separation blade, and the other end of movable rod is provided with the baffle.
As a still further scheme of the invention: the outer wall of the filter disc is provided with a groove, infrared sensors are arranged in the groove and are arranged on two sides of the filter opening, the infrared sensors are connected with a processor, and the processor is electrically connected with a switch of the second fan.
As a still further scheme of the invention: the air inlet cylinder is internally provided with an air speed sensor, the air speed sensor is electrically connected with a controller, and the controller is electrically connected with a switch of the driving piece.
As a still further scheme of the invention: the outer wall of the mounting seat is further provided with fixing plates, a screw rod is arranged between the adjacent fixing plates, the outer wall of the screw rod is sleeved with a moving wheel, a thread cylinder is arranged on the outer wall of the screw rod in a threaded mode, balls distributed in an annular mode are arranged at the end portion of the thread cylinder in a rotating mode, and the outer wall of each ball is attached to the outer wall of the moving wheel.
Compared with the prior art, the invention has the beneficial effects that:
when the filter openings with dust are connected with the dust collection cover in an abutting mode, part of the filtered air in the box body can be pumped out through the dust removal mechanism and acts on the filter openings, the dust on the filter cotton can be blown into the dust collection cover, the dust on the filter cotton can be guided into the dust collection cover along the dust collection pipe, and the dust collection bag can be used in a continuous circulating mode, dust can be effectively cleaned, and the using effect is better.
Drawings
Fig. 1 is a schematic cross-sectional structural view of an air purification device for a textile workshop according to an embodiment of the present invention;
FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;
FIG. 3 is a schematic side view of a filter disc of an air purification device for a textile workshop according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a dust removal mechanism of an air purification device for a textile workshop, provided by an embodiment of the invention;
fig. 5 is a schematic structural diagram of a partition plate of an air purification device for a textile workshop, provided by an embodiment of the invention.
In the figure: 1-mounting seat, 2-box body, 3-limit plate, 4-air inlet cylinder, 5-air inlet cover, 6-wind speed sensor, 7-support rod, 8-filter disc, 9-dust bag, 10-dust collecting pipe, 11-dust collecting cover, 12-dust removing mechanism, 13-driving piece, 14-partition plate, 15-exhaust cover, 16-exhaust pipe, 17-fan I, 18-baffle, 19-movable rod, 20-air vent, 21-fixed cover, 22-filter opening, 23-filter screen, 24-filter cotton, 25-infrared sensor, 26-fixed plate, 27-screw rod, 28-movable wheel, 29-threaded cylinder, 30-ball, 31-dust removing cover, 32-fan II, 33-connecting pipe, 34-box body, 35-mounting rod, 36-rotary cylinder, 37-fan blade, 38-elastic piece, 39-impact ball and 40-exhaust pipe.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments.
As shown in fig. 1 and fig. 2, an air purification device for a textile workshop provided for an embodiment of the present invention includes a mounting base 1, a box body 2 is disposed on an outer wall of the mounting base 1, and a driving member 13 is fixedly disposed on an outer wall of the box body 2 in a penetrating manner, a specific structure of the driving member 13 is not limited, in this embodiment, preferably, the driving member 13 employs a stepping motor, a filter disc 8 is disposed on a driving end of the driving member 13, a filter opening 22 is disposed on an outer wall of the filter disc 8, the filter opening 22 is disposed on an inner wall of the filter opening 22, a filter screen 23 is disposed between adjacent filter screens 23, a limit plate 3 is disposed on an inner wall of the box body 2, the filter disc 8 is rotatably disposed in the limit plate 3, an intake cylinder 4 is fixedly disposed on an outer wall of one side of the box body 2 in a penetrating manner, an intake cylinder 4 is disposed at one end of the intake cylinder 4, a fixing cover 21 is disposed at the other end of the intake cylinder 4, an end of the fixing cover 21 is attached to an outer wall of the filter disc 8, an outer wall of the other side of the box body 2 is fixedly disposed on an outer wall of the other side in a penetrating manner, a first air exhaust cover 15, a first fan 17 is disposed in the exhaust cover 15, an exhaust pipe 16 is disposed on an outer wall of the exhaust cover 15, and further includes:
the dust removal mechanism 12 is arranged on the outer wall of the driving part 13, and is used for pumping out air in the box body 2 and acting on the filtering port 22;
the dust collecting cover 11, the cover mouth of the dust collecting cover 11 is attached to the outer wall of the filter disc 8, the end part of the dust collecting cover 11 is communicated with a dust collecting pipe 10, the dust collecting pipe 10 is fixedly arranged on the outer wall of the box body 2 through a support rod 7, and the other end of the dust collecting pipe 10 is provided with a dust collecting bag 9.
The first fan 17 can suck in the outside air through the air inlet cover 5, the outside air acts on the filter opening 22 through the fixed cover 21 on the air inlet cylinder 4, the filter cotton 24 in the filter screen 23 can filter the air, dust is left on the filter cotton 24, the filtered air can be discharged through the exhaust pipe 16 on the exhaust cover 15, the exhaust pipe 16 can be communicated with a breathing mask for workers in a textile workshop to breathe, when the dust on the filter cotton 24 is filtered more, and the air flow rate is reduced, the filter disc 8 can be driven to rotate through the driving part 13, so that the filter opening 22 with more dust on the filter disc 8 can be aligned to the dust collection cover 11, other filter openings 22 can be aligned to the fixed cover 21 again, the influence on the normal purification of the air can not be caused, when the filter opening 22 with dust is connected with the dust collection cover 11, part of the filtered air in the box body 2 can be drawn out through the dust removal mechanism 12 at the moment, and acts on the filter opening 22, the dust on the dust collection cover 11, the dust can be blown into the dust collection pipe 10 to be collected, the filter cotton 24 can be continuously used, and the dust can be cleaned more effectively and the dust can be used more effectively and the dust can be cleaned automatically.
As an embodiment of the present invention, please refer to fig. 1 and 4, the dust removing mechanism 12 includes a dust removing cover 31 disposed on an outer wall of the driving member 13, a cover opening of the dust removing cover 31 is attached to an outer wall of the filter disc 8, a second fan 32 is disposed in the dust removing cover 31, the dust removing cover 31 is connected to the box 34 through a connecting pipe 33, the box 34 is communicated with the box 2 through an exhaust pipe 40, the outer wall of the exhaust pipe 40 is provided with a one-way valve, air can only enter the box 34 through the box 2 through the one-way valve, the air in the box 2 can be drawn into the box 34 through the exhaust pipe 40 by the second fan 32, and is guided into the dust removing cover 31 through the connecting pipe 33, and finally acts on the filter cotton 24 in the filter screen 23, so as to clean the filter cotton 24, and the use is very convenient.
As an embodiment of the present invention, please refer to fig. 4, the inner wall of the dust hood 31 is provided with mounting rods 35 distributed annularly at equal intervals, the outer wall of the mounting rods 35 is rotatably provided with a rotary drum 36, the outer wall of the rotary drum 36 is provided with fan blades 37 distributed annularly at equal intervals, the end portions of the fan blades 37 are connected with impact balls 39 through elastic members 38, and the specific structure of the elastic members 38 is not limited.
As an embodiment of the present invention, please refer to fig. 1 and 5, a partition 14 is fixedly disposed on an inner wall of the mounting seat 1, a plurality of air vents 20 are disposed on an outer wall of the partition 14, a movable rod 19 further penetrates through the outer wall of the partition 14, a blocking piece is disposed at one end of the movable rod 19, and a baffle 18 is disposed at the other end of the movable rod 19, so that air in the box body 2 can flow toward the exhaust hood 15 only through the air vents 20 under the action of the baffle 18, thereby effectively preventing the dust removing mechanism 12 from sucking the external unfiltered air into the box body 2 through the exhaust pipe 16 when extracting the air, and providing a better use effect.
As an embodiment of the present invention, please refer to fig. 2, a groove is formed in an outer wall of the filter disc 8, an infrared sensor 25 is disposed in the groove, the infrared sensor 25 is disposed on two sides of the filter opening 22, the infrared sensor 25 is connected to a processor, the processor is electrically connected to a switch of the second fan 32, when infrared light emitted by the infrared sensor 25 is completely blocked by the dust collection cover 11, the second fan 32 is triggered to operate, and at this time, the dust collection cover 11 is in a state of completely covering the filter opening 22, so that the situation that dust is blown to the outside air by the second fan 32 due to early operation can be effectively avoided, and the use effect is better.
As an embodiment of the present invention, referring to fig. 1, an air velocity sensor 6 is disposed in the air intake cylinder 4, the air velocity sensor 6 is electrically connected to a controller, the controller is electrically connected to a switch of the driving member 13, the air velocity in the air intake cylinder 4 can be monitored by the air velocity sensor 6, when the filter cotton 24 filters more dust, the air velocity is lower, and at this time, the driving member 13 is automatically triggered to drive the filter disc 8 to rotate, so as to achieve automatic cleaning of the filter cotton 24, and the using effect is better.
As an embodiment of the present invention, please refer to fig. 3, the outer wall of the mounting seat 1 is further provided with a fixing plate 26, a screw 27 is arranged between adjacent fixing plates 26, the outer wall of the screw 27 is sleeved with a moving wheel 28, the outer wall of the screw 27 is threaded with a threaded cylinder 29, the end of the threaded cylinder 29 is rotatably provided with a plurality of annularly distributed balls 30, and the outer wall of the balls 30 is attached to the outer wall of the moving wheel 28, and by rotating the threaded cylinder 29 on the screw 27, the position of the moving wheel 28 can be adjusted according to the width of the track in the mine, so that the moving wheel 28 can just align with the track, and the device can move on the track, thereby providing more flexibility in use, and meanwhile, the balls 30 on the threaded cylinder 29 can ensure the smoothness of the moving wheel 28 during rotation, and providing better use effect.
When the dust filter is used, external air can be sucked in through the air inlet cover 5 through the first fan 17, the air acts on the filter opening 22 through the fixed cover 21 on the air inlet cylinder 4, the air can be filtered through the filter cotton 24 in the filter screen 23, dust is left on the filter cotton 24, the filtered air can be discharged through the exhaust pipe 16 on the exhaust hood 15, the exhaust pipe 16 can be communicated with the breathing mask and is used for breathing of workers in a textile workshop, when the dust on the filter cotton 24 is more filtered and the air flow rate is reduced, the filter disc 8 can be driven to rotate through the driving piece 13, the filter opening 22 with more dust on the filter disc 8 can be aligned to the dust collection hood 11, other filter openings 22 are aligned to the fixed cover 21 again, the normal purification of the air cannot be affected, when the filter opening 22 with dust is aligned to the dust collection hood 11, part of the filtered air in the box body 2 can be drawn out through the dust removal mechanism 12 and acts on the filter opening 22, the dust on the dust collection hood 11 can be blown into the dust collection pipe 10 to be collected continuously, the dust collection bag 24, and the dust can be effectively cleaned and used more effectively.
It should be noted that although the present specification describes embodiments, not every embodiment includes only a single technical solution, and such description of the specification is only for clarity, and those skilled in the art should take the specification as a whole, and the technical solutions in the embodiments may be appropriately combined to form other embodiments understood by those skilled in the art.
Claims (7)
1. The utility model provides an air purification device for textile workshop, includes the mount pad, its characterized in that, the outer wall of mount pad is provided with the box, and the outer wall of box runs through the fixed driving piece that is provided with, the drive end of driving piece is provided with the filter disc, the outer wall of filter disc sets up the filtration mouth that the equidistance is the annular and distributes, and the inner wall that filters the mouth is provided with the filter screen, and is adjacent be provided with the filter pulp between the filter screen, the inner wall of box is provided with the limiting plate, and the filter disc rotates and sets up in the limiting plate, one side outer wall of box runs through the fixed admission cylinder that is provided with, and the one end of admission cylinder is provided with the suction hood, the other end of admission cylinder is provided with fixed cover, and the tip of fixed cover and the outer wall of filter disc laminate mutually, the opposite side outer wall of box runs through the fixed air discharge hood that is provided with, and be provided with fan one in the air discharge hood, the outer wall of air discharge hood is provided with the blast pipe, still include:
the dust removal mechanism is arranged on the outer wall of the driving piece and used for pumping out air in the box body and acting on the filtering port;
the dust hood, the cover mouth department of dust hood and the outer wall of filter disc are laminated mutually, the tip intercommunication of dust hood has the dust collecting tube, and the dust collecting tube passes through the bracing piece and fixes the outer wall that sets up in the box, the other end of dust collecting tube is provided with the dust bag.
2. The air purification device for the textile workshop, according to claim 1, is characterized in that the dust removal mechanism comprises a dust removal cover arranged on the outer wall of the driving part, a cover opening of the dust removal cover is attached to the outer wall of the filter disc, a second fan is arranged in the dust removal cover, the dust removal cover is connected with a box body through a connecting pipe, the box body is communicated with the box body through an exhaust pipe, and a one-way valve is arranged on the outer wall of the exhaust pipe.
3. The air purification device for the textile workshop, according to claim 2, wherein the inner wall of the dust hood is provided with mounting rods distributed annularly at equal intervals, the outer wall of each mounting rod is provided with a rotary drum in a rotating manner, the outer wall of the rotary drum is provided with fan blades distributed annularly at equal intervals, and the end parts of the fan blades are connected with impact balls through elastic pieces.
4. The air purification device for the textile workshop, as recited in claim 2, wherein a partition plate is fixedly arranged on an inner wall of the mounting seat, a plurality of air holes are formed in an outer wall of the partition plate, a movable rod is further arranged on the outer wall of the partition plate in a penetrating manner, a blocking piece is arranged at one end of the movable rod, and a baffle is arranged at the other end of the movable rod.
5. The air purification device for the textile workshop, as recited in claim 2, wherein a groove is formed in an outer wall of the filter disc, an infrared sensor is arranged in the groove, the infrared sensor is arranged on two sides of the filter opening, the infrared sensor is connected with a processor, and the processor is electrically connected with a switch of the second fan.
6. The air purification device for the textile workshop as recited in claim 1, wherein an air velocity sensor is disposed in the air inlet cylinder, the air velocity sensor is electrically connected with a controller, and the controller is electrically connected with a switch of the driving member.
7. The air purification device for the textile workshop as claimed in claim 1, wherein the outer wall of the mounting seat is further provided with fixing plates, a screw rod is arranged between every two adjacent fixing plates, the outer wall of the screw rod is sleeved with a moving wheel, the thread of the outer wall of the screw rod is provided with a threaded cylinder, the end of the threaded cylinder is rotatably provided with balls which are distributed annularly, and the outer wall of each ball is attached to the outer wall of the moving wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210849376.4A CN115183372A (en) | 2022-07-19 | 2022-07-19 | Air purification device for textile workshop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210849376.4A CN115183372A (en) | 2022-07-19 | 2022-07-19 | Air purification device for textile workshop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115183372A true CN115183372A (en) | 2022-10-14 |
Family
ID=83518773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210849376.4A Withdrawn CN115183372A (en) | 2022-07-19 | 2022-07-19 | Air purification device for textile workshop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115183372A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115854477A (en) * | 2023-02-27 | 2023-03-28 | 天津市棕信科技股份有限公司 | Movable air cleaner |
| CN117160154A (en) * | 2023-09-18 | 2023-12-05 | 广州雪源净化工程有限公司 | Dust filtering device and method for purification workshop |
| CN118067930A (en) * | 2024-04-19 | 2024-05-24 | 辽宁省气象服务中心(辽宁省气象影视中心) | Automatic air negative oxygen ion monitoring device and method |
-
2022
- 2022-07-19 CN CN202210849376.4A patent/CN115183372A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115854477A (en) * | 2023-02-27 | 2023-03-28 | 天津市棕信科技股份有限公司 | Movable air cleaner |
| CN117160154A (en) * | 2023-09-18 | 2023-12-05 | 广州雪源净化工程有限公司 | Dust filtering device and method for purification workshop |
| CN117160154B (en) * | 2023-09-18 | 2024-03-15 | 广州雪源净化工程有限公司 | Dust filtering device and method for purification workshop |
| CN118067930A (en) * | 2024-04-19 | 2024-05-24 | 辽宁省气象服务中心(辽宁省气象影视中心) | Automatic air negative oxygen ion monitoring device and method |
| CN118067930B (en) * | 2024-04-19 | 2024-07-09 | 辽宁省气象服务中心(辽宁省气象影视中心) | Automatic air negative oxygen ion monitoring device and method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication | ||
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Application publication date: 20221014 |