CN110081534B - Air purifier dust collector - Google Patents

Air purifier dust collector Download PDF

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Publication number
CN110081534B
CN110081534B CN201910426473.0A CN201910426473A CN110081534B CN 110081534 B CN110081534 B CN 110081534B CN 201910426473 A CN201910426473 A CN 201910426473A CN 110081534 B CN110081534 B CN 110081534B
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CN
China
Prior art keywords
filter screen
motor
plate
arranged above
air
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
Application number
CN201910426473.0A
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Chinese (zh)
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CN110081534A (en
Inventor
曹顺山
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pan Qianxuan
Original Assignee
Pan Qianxuan
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Publication date
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Priority to CN201910426473.0A priority Critical patent/CN110081534B/en
Publication of CN110081534A publication Critical patent/CN110081534A/en
Application granted granted Critical
Publication of CN110081534B publication Critical patent/CN110081534B/en
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00Disinfection, sterilisation or deodorisation of air
    • A61L9/16Disinfection, sterilisation or deodorisation of air using physical phenomena
    • A61L9/18Radiation
    • A61L9/20Ultra-violet radiation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/28Arrangement or mounting of filters
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10Treatment, 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10Treatment, 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
    • F24F8/108Treatment, 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10Treatment, 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
    • F24F8/15Treatment, 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 by chemical means
    • F24F8/158Treatment, 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 by chemical means using active carbon
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/20Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation
    • F24F8/22Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation using UV light
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/90Cleaning of purification apparatus
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

Abstract

The invention provides a dust removing device of an air purifier, which comprises a device body, wherein an air inlet is arranged at the lower part of the device body, a first baffle plate is arranged above the air inlet, a second cleaning pipe is arranged above the first baffle plate, an ultraviolet lamp is arranged above the second cleaning pipe, an active carbon filter screen is arranged above the ultraviolet lamp, an HEPA filter screen is arranged above the active carbon filter screen, a first cleaning pipe is arranged on each side surface of the active carbon filter screen and the HEPA filter screen, a blade is arranged above the HEPA filter screen, a ventilating plate is arranged on the outer side of the blade, the air is sterilized through the ultraviolet lamp during air purification, the air is filtered through the active carbon filter screen and the HEPA filter screen, a second cleaning pipe is arranged on the first baffle plate, the first baffle plate is cleaned, dust accumulated on the first baffle plate is prevented from breeding germs, the surfaces of the active carbon filter screen and the HEPA filter screen are cleaned through the first cleaning pipe, the service lives, can remove dust particles between filter screens, adsorb harmful substances such as formaldehyde, benzene and the like, and prevent secondary pollution.

Description

Air purifier dust collector
Technical Field
The invention relates to the technical field of air purification, in particular to a dust removal device of an air purifier.
Background
Along with the development of society, human beings cause the environment to deteriorate increasingly through activities of the human beings, especially the problem of air pollution is more and more concerned by people, especially, the air pollution condition in China is more serious, a large range of haze often appears, PM2.5 is seriously overproof, the pollutants enter the bodies of people and can cause very adverse effects on the health of people, the polluted air is breathed for a long time, diseases such as chronic bronchitis, bronchial asthma, emphysema and lung cancer can be caused, therefore, the problem of how to purify the air is more concerned by people becomes more and more, various air purifiers can be produced by oneself, but the existing air purifiers can not sterilize the air, part of filter screens of the air purifiers can block bacteria and viruses, but do not kill the bacteria and the viruses, after the air purifiers stop working, viruses, bacteria and partial particles can be released into the air again to cause secondary pollution to the air, the inside of some air purifiers does not adopt antibacterial materials, various substances such as human skin scraps can provide nutrients for the viruses and the bacteria to form a hotbed for the diffusion of the viruses and the bacteria, and the air purifiers are harmful to health after being used for a long time.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides a dust removal device of an air purifier.
The invention provides a dust removing device of an air purifier, which comprises a device body, wherein an air inlet is arranged below the device body, a first baffle plate is arranged above the air inlet and fixed at the inner side of a box body through a first connecting rod, second cleaning pipes are symmetrically arranged above the first baffle plate, an ultraviolet lamp is arranged above the second cleaning pipes, an active carbon filter screen is arranged above the ultraviolet lamp, an HEPA filter screen is arranged above the active carbon filter screen, the first cleaning pipes are arranged on each side surface of the active carbon filter screen and the HEPA filter screen, blades are arranged above the HEPA filter screen, a ventilating plate is arranged on the outer side of each blade, the second cleaning pipes are provided with outer cylinders, through holes are arranged on the upper side and the lower side of each outer cylinder, an arc-shaped plate is arranged in each through hole, gaskets are arranged at the two ends of the inner side of each arc-shaped plate and arranged, set up the spring between baffle and the arc, set up the telescopic link in the inner tube, the telescopic link outer end sets up the piston.
Preferably, the second is clean intraductal to set up the dwang, and the dwang inboard sets up first motor, and first motor is fixed in the fifth motor case, and both sides set up the spring about the dwang between fifth motor case and the rotation incasement wall, and the fifth motor case sets up in the sliding tray at sliding plate middle part, rotates incasement portion roof middle part and sets up the second motor, and the cam is fixed through the transmission shaft below the second motor, and the cam both sides set up in fixing the chucking inslot on the fifth motor case.
Preferably, the two ends of the first cleaning pipe are provided with the second motor boxes, one end of the second motor box, which is far away from the first cleaning pipe, is fixed on the first fixing plate, the upper end of the first fixing plate is provided with the clamping piece, the clamping piece is arranged in the upper fixing pipe, the upper fixing pipe is arranged on the box body side plate, the third motor box is arranged below the first fixing plate, the first moving wheel is arranged below the third motor box, the third motor box and the first moving wheel are arranged in the lower fixing pipe, and the lower fixing pipe is arranged on the box body side plate.
Preferably, the blades are fixed on a rotating shaft, and the rotating shaft is fixed on the first motor box.
Preferably, lamp holders are arranged at two ends of the ultraviolet lamp, the lamp holders are arranged in the fixing seats, and the fixing seats are arranged on the side plates of the box body.
Preferably, the ventilation plate is provided with through holes.
Advantageous effects
The invention sterilizes and disinfects air through the ultraviolet lamp to kill virus and bacteria in the air, the first baffle plate below the ultraviolet lamp prevents the ultraviolet lamp from overflowing and hurting human body, the inner cylinder is arranged in the second cleaning tube, the flexible glue in the inner cylinder is extruded between the inner cylinder and the outer cylinder through the telescopic rod, when the arc plate is extruded, a gap is formed between the arc plate and the outer cylinder, the flexible glue escapes, the second cleaning tube can move up and down, the flexible glue continuously escapes to form waste, the left and right movement of the second cleaning tube prevents the cleaning blind area, the first baffle plate is thoroughly cleaned, the first moving wheels arranged at the two ends of the first cleaning tube move in the fixed tube to clean the surfaces of the active carbon filter screen and the HEPA filter screen, solid particles are prevented from accumulating on the surface of the filter screen, the service life of the filter screen is prolonged, dust particles are simultaneously cleaned, and viruses and dust particles in accumulated dust are prevented, Bacterial growing, first clean pipe and the clean pipe of second are inside thoroughly clean the clarifier, prevent to close the back at air purifier, and virus, bacterium fly into indoorly, harm user's health.
Drawings
FIG. 1 is an overall structural view of the present invention;
FIG. 2 is an enlarged view of FIG. 1 at A;
FIG. 3 is an enlarged view of FIG. 1 at B;
FIG. 4 is an enlarged view of FIG. 3 at C;
fig. 5 is a top view of the middle of the turn box of fig. 3.
Reference numerals in the figures
1. A device body; 2. an air inlet; 3. a box body; 4. a fixed seat; 5. a lamp cap; 6. an ultraviolet lamp; 7. an active carbon filter screen; 8. a first cleaning tube; 9. a HEPA filter screen; 10. a blade; 11. a rotating shaft; 12. a first motor case; 13. a gas permeable plate; 14. a through hole; 15. a first connecting rod; 16. a second motor case; 17. a fixed tube; 18. a clamping sheet; 19. a third motor case; 20. a first fixing sheet; 21. a first moving wheel; 22. a first baffle plate; 23. a first motor; 24. a spring; 25. rotating the rod; 26. a second motor; 27. A rotating box; 28. a telescopic rod; 29. a limiting groove; 30. a baffle plate; 31. an outer cylinder; 32. an arc-shaped plate; 33. a second cleaning tube; 34. a spring; 35. a gasket; 36. an inner barrel; 37. a fifth motor case; 38. a cam; 39. a sliding plate; 40. a sliding groove; 41. and (4) clamping the groove.
Detailed Description
The invention will be described in detail with reference to the accompanying drawings, as shown in fig. 1-5, a dust removing device of an air purifier comprises a device body 1, an air inlet 2 is arranged below the device body 1, a first baffle 22 is arranged above the air inlet 2, the first baffle 22 is fixed at the inner side of a box body 3 through a first connecting rod 15, second cleaning pipes 33 are symmetrically arranged above the first baffle 22, an ultraviolet lamp 6 is arranged above the second cleaning pipes 33, lamp caps 5 are arranged at two ends of the ultraviolet lamp 6, the lamp caps 5 are arranged in a fixed seat 4, the fixed seat 4 is arranged on a side plate of the box body 3, an active carbon filter screen 7 is arranged above the ultraviolet lamp 6, a HEPA filter screen 9 is arranged above the active carbon filter screen 7, a first cleaning pipe 8 is arranged at each side of the active carbon filter screen 7 and the HEPA filter screen 9, a second motor box 16 is arranged at two ends of the first cleaning pipes 8, one end of the second motor box 16, the upper end of the first fixing sheet 20 is provided with a clamping sheet 18, the clamping sheet 18 is arranged in an upper fixing pipe 17, the upper fixing pipe 17 is arranged on a side plate of the box body 3, a third motor box 19 is arranged below the first fixing sheet 20, a first moving wheel 21 is arranged below the third motor box 19, the third motor box 19 and the first moving wheel 21 are arranged in a lower fixing pipe 17, and the lower fixing pipe 17 is arranged on the side plate of the box body 3.
The blade 10 is arranged above the HEPA filter screen 9, the blade 10 is fixed on the rotating shaft 11, the rotating shaft 11 is fixed on the first motor box 12, the air permeable plate 13 is arranged outside the blade 10, the through hole 14 is arranged on the air permeable plate 13, the second cleaning pipe 33 is provided with the outer cylinder 31, the through holes are arranged on the upper side and the lower side of the outer cylinder 31, the arc-shaped plate 32 is arranged in the through hole, the gasket 35 is arranged at the two ends of the inner side of the arc-shaped plate 32, the gasket 35 is arranged in the limiting groove 29, the limiting groove 29 is fixed outside the inner cylinder 36, the baffle 30 is arranged at one side of the limiting groove 29, which is far away from the arc-shaped plate 32, the baffle 30 is fixed outside the inner cylinder 36, the spring 34 is arranged between the baffle 30 and the arc-shaped plate 32, the telescopic rod 28 is arranged in the inner cylinder 36, the outer end of the telescopic rod 28 is provided with the piston, the rotating rod 25 is arranged inside, the fifth motor box 37 is arranged in a sliding groove 40 in the middle of a sliding plate 39, the sliding groove 40 is fixed on a side plate of the rotating box 27, the second motor 26 is arranged in the middle of a top plate in the rotating box 27, a cam 38 is fixed below the second motor 26 through a transmission shaft, two sides of the cam 38 are arranged in a clamping groove 41 fixed on the fifth motor box 37, and the clamping groove 41 is arranged on the outer side of the fifth motor box 37.
When the air purifier starts to work, the first motor box 12 drives the blades 10 to rotate, so that air enters the device body 1 from the air inlet 2, bacteria and viruses in the air are killed under the irradiation of the ultraviolet lamp 6 after the air enters the device body 1, the area of the first baffle plate 22 is larger than that of the air inlet 2 to prevent ultraviolet rays from overflowing the device, so that harm is caused to a human body, the sterilized air is filtered by the active carbon filter screen 7 and the HEPA filter screen 9, the second motor 26 rotates in the rotating box 27 above the first baffle plate 22 to rotate the cam 38 below, the cam 38 is obliquely arranged, the fifth motor box 37 simultaneously moves left and right and up and down when the cam 38 rotates the fifth motor box 37 on the left side, the left spring 24 compresses to enable the second cleaning pipe 33 to move left, and when the protruding part of the cam 38 does not extrude the fifth motor box 37 on the left side any more, the fifth motor box 37 is pushed back to the original position by the spring, the first motor 23 enables the second cleaning pipe 33 to rotate, the arc plate 32 on the second cleaning pipe 33 rotates to be in contact with the first baffle 22, before the arc plate 32 is pressed, the outer side of the arc plate 32 is attached to the through hole on the outer cylinder 31, after the arc plate 32 is pressed by the first baffle 22, the arc plate 32 is compressed inwards, the gasket 35 at the bottom of the arc plate 32 moves in the fiber groove 29, the spring 34 is compressed, a gap is formed between the arc plate 32 and the outer cylinder 31, the flexible glue in the inner cylinder overflows through the gap by the extension piston of the telescopic rod 28, the cam 38 enables the second cleaning pipe 33 to move up and down to prevent the flexible glue from continuously flowing out to cause waste, the second cleaning pipe 33 cleans the surface of the first baffle 22, meanwhile, the second cleaning pipe 33 rotates to drive the rotating box 27 to move back and forth, when the edge of the first baffle 22 is moved, the first motor 23 rotates reversely, the cam 38 makes the third cleaning pipe 33 move left and right to prevent the cleaning pipe 33 from generating a cleaning blind area, the working principle of the first cleaning pipe 8 is the same as that of the second cleaning pipe 33, the second motor box 16 at the two ends of the second cleaning pipe 33 drives the second cleaning pipe 33 to rotate, the third motor box 19 drives the first moving wheel 21 to drive the second cleaning pipe 33 to move, the clamping sheet 18 moves in the upper fixed pipe 17 to bear partial pressure to prolong the service life of the first moving wheel 21, each side surface of each first baffle 22 and each side surface of each filter screen in the air purifier are realized through the first cleaning pipe 8 and the second cleaning pipe 33, the cleaning of dust accumulation surfaces is easy, the breeding of viruses and bacteria in accumulated dust is prevented, the viruses and bacteria are prevented from floating into a room after the air purifier is closed, the health of a user is damaged, meanwhile, soft rubber adsorbs harmful substances, and dust particles are prevented from floating into the room again, the filtered air escapes from the through holes 14 of the air-permeable plate 13.
The technical solutions described above only represent the preferred technical solutions of the present invention, and some possible modifications to some parts of the technical solutions by those skilled in the art all represent the principles of the present invention, and fall within the protection scope of the present invention.

Claims (6)

1. A dust removal device of an air purifier comprises a device body and is characterized in that an air inlet is arranged below the device body, a first baffle is arranged above the air inlet, the first baffle is fixed on the inner side of a box body through a first connecting rod, second cleaning pipes are symmetrically arranged above the first baffle, an ultraviolet lamp is arranged above the second cleaning pipes, an active carbon filter screen is arranged above the ultraviolet lamp, an HEPA filter screen is arranged above the active carbon filter screen, a first cleaning pipe is arranged on each side surface of the active carbon filter screen and the HEPA filter screen, blades are arranged above the HEPA filter screen, a ventilating plate is arranged on the outer side of each blade, the second cleaning pipes are provided with outer cylinders, through holes are arranged on the upper side and the lower side of each outer cylinder, an arc-shaped plate is arranged in each through hole, gaskets are arranged at two ends of the inner side of each arc-shaped plate, each gasket is, set up the spring between baffle and the arc, set up the telescopic link in the inner tube, the telescopic link outer end sets up the piston.
2. The dust removing device of an air cleaner as claimed in claim 1, wherein: the clean intraductal side of second sets up the dwang, and the dwang inboard sets up first motor, and first motor is fixed in the fifth motor case, and both sides set up the spring about the dwang between fifth motor case and the rotation incasement wall, and the fifth motor case sets up in the sliding tray at sliding plate middle part, rotates incasement portion roof middle part and sets up the second motor, and the cam is fixed through the transmission shaft in the second motor below, and the cam both sides set up in the chucking inslot of fixing on the fifth motor case.
3. The dust removing device of an air cleaner as claimed in claim 1, wherein: the two ends of the first cleaning pipe are provided with second motor boxes, one end of the second motor box, far away from the first cleaning pipe, is fixed on a first fixing plate, the upper end of the first fixing plate is provided with a clamping piece, the clamping piece is arranged in the upper fixing pipe, the upper fixing pipe is arranged on a box body side plate, a third motor box is arranged below the first fixing plate, a first moving wheel is arranged below the third motor box, the third motor box and the first moving wheel are arranged in the lower fixing pipe, and the lower fixing pipe is arranged on the box body side plate.
4. The dust removing device of an air cleaner as claimed in claim 1, wherein: the blades are fixed on the rotating shaft, and the rotating shaft is fixed on the first motor box.
5. The dust removing device of an air cleaner as claimed in claim 1, wherein: the lamp holder is arranged at two ends of the ultraviolet lamp, the lamp holder is arranged in the fixed seat, and the fixed seat is arranged on the side plate of the box body.
6. The dust removing device of an air cleaner as claimed in claim 1, wherein: the ventilation plate is provided with a through hole.
CN201910426473.0A 2019-05-22 2019-05-22 Air purifier dust collector Active CN110081534B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910426473.0A CN110081534B (en) 2019-05-22 2019-05-22 Air purifier dust collector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910426473.0A CN110081534B (en) 2019-05-22 2019-05-22 Air purifier dust collector

Publications (2)

Publication Number Publication Date
CN110081534A CN110081534A (en) 2019-08-02
CN110081534B true CN110081534B (en) 2020-12-04

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910426473.0A Active CN110081534B (en) 2019-05-22 2019-05-22 Air purifier dust collector

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111397013B (en) * 2020-03-24 2021-05-07 安徽杰克欧德实验室设备有限公司 Air purifier for clean room
CN111336621B (en) * 2020-04-09 2021-01-05 浙江大维高新技术股份有限公司 Environment-friendly air purification device
CN111623444B (en) * 2020-06-09 2021-11-26 山东美欣医疗科技有限公司 Air purification filter screen device with LED ultraviolet photocatalyst function of disinfecting
CN112169483A (en) * 2020-10-23 2021-01-05 临漳县巨鹏贸易有限公司 Mining plant dust removal purifier for environmental protection equipment
CN112944556A (en) * 2021-03-15 2021-06-11 广州特贝科技信息有限公司 Air-assisted mobile sterilization and purification equipment

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104633785B (en) * 2015-02-28 2017-10-20 北京众鑫兴业大气污染治理有限公司 A kind of photocatalysis waste gas purification apparatus
KR101624740B1 (en) * 2015-04-08 2016-05-26 이성헌 Air cleaning devices
CN105698279B (en) * 2016-01-27 2019-03-01 蚌埠市瑞风净化设备工程有限责任公司 A kind of multifunction environment-protection type indoor air-purification device
CN106940045A (en) * 2017-04-01 2017-07-11 林涵 A kind of highly effective air dust removal and filtration garden equipment
CN207334832U (en) * 2017-07-25 2018-05-08 天津市鹏帆厨房设备有限公司 A kind of high efficiency filter intelligent fume exhauster

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Effective date of registration: 20201117

Address after: Room 14-204, Gaian new village, Danan street, Lucheng District, Wenzhou City, Zhejiang Province 325000

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