CN110302602A - A kind of secondhand smoke is collected and environment friendly purification apparatus - Google Patents
A kind of secondhand smoke is collected and environment friendly purification apparatus Download PDFInfo
- Publication number
- CN110302602A CN110302602A CN201910716545.5A CN201910716545A CN110302602A CN 110302602 A CN110302602 A CN 110302602A CN 201910716545 A CN201910716545 A CN 201910716545A CN 110302602 A CN110302602 A CN 110302602A
- Authority
- CN
- China
- Prior art keywords
- exhaust fan
- fixedly installed
- wear
- secondhand smoke
- collection assembly
- 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.)
- Pending
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Classifications
-
- 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
- B01D46/0039—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with flow guiding by feed or discharge devices
- B01D46/0041—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with flow guiding by feed or discharge devices for feeding
-
- 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
- B01D46/42—Auxiliary equipment or operation thereof
-
- 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
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/4245—Means for power supply or devices using electrical power in filters or filter elements
-
- 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
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
- B01D46/64—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series arranged concentrically or coaxially
-
- 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
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
- B01D46/645—Protecting screens at filter inlet or outlet
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/02—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using chambers or hoods covering the area
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/06—Polluted air
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a kind of collection of secondhand smoke and environment friendly purification apparatus, including purifying box and wear-type collection assembly, the purifying box includes cabinet, the bottom of box is fixedly installed with several wear-type collection assembly connectors, the wear-type collection assembly includes head fixed ring, movable sleeve is equipped with exhaust fan seat on the exhaust fan seat axis, secondhand smoke exhaust fan is fixedly installed in the exhaust fan seat, smoke conveying duct is also fixedly installed on the exhaust fan seat, the smoke conveying duct is connect by plastic tube with the wear-type collection assembly connector on purifying box, the present invention can be worn on head, it can satisfy more people while using, air can also be purified simultaneously, secondhand smoke purification efficiency is high, use scope is wide, the pure and fresh of air has been effectively ensured, it is suitble to be promoted in public Administrative Area.
Description
Technical field
The present invention relates to environmentally friendly equipment technology field, specially a kind of secondhand smoke is collected and environment friendly purification apparatus.
Background technique
Set forth above in order to solve the problems, such as, application No. is the one kind of " CN201710037284.5 " is second-hand in the prior art
Fume purifier and air processor, the second-hand fume purifier include shell, radial fan and air filtration structure；Shell
It is formed with inner cavity in vivo, the air inlet and air outlet being connected to inner cavity are provided on shell；Radial fan includes multiple send
Air port, multiple air outlets are provided at circumferentially spaced along the center of rotation of radial fan；Radial fan is immobilized in the shell, and is turned
The axial direction and air inlet face at dynamic center, it is outer to cover multiple air outlets that air filtration structure is set in radial fan, and with
Air outlet is opposite.The second-hand fume purifier structure is simple, and volume small occupied space is few, using flexible；Therefore, it can not influence
In the case where people's normal life and work, nearest smoker carries out purification filtering to secondhand smoke gas, avoids secondhand smoke gas
Diffusion, purification efficiency with higher and preferable clean-up effect, so that secondhand smoke be avoided to bring injury to other people.
Although solving the problems, such as that secondhand smoke extends influence air, the above-mentioned second-hand fume purifier and air processor
Still have more apparent defect in use: 1, above-mentioned apparatus limits the scope of activities of user when in use,
It must be when spitting flue gas each time close to air inlet；2, above-mentioned apparatus can only meet people use, be unable to satisfy more people while making
With；3, above-mentioned apparatus detergent power is limited, and only can be carried out the purification of secondhand smoke, and use scope is limited.
Summary of the invention
The purpose of the present invention is to provide a kind of collection of secondhand smoke and environment friendly purification apparatus, to solve in above-mentioned background technique
The problem of proposition.
To achieve the above object, the invention provides the following technical scheme:
A kind of secondhand smoke is collected and environment friendly purification apparatus, including purifying box and wear-type collection assembly, the purification luggage
Cabinet is included, exhaust fan is fixedly installed on the cabinet, the bottom of box is fixedly installed with several wear-type collection assemblies and connects
Interface, the box house are equipped with air cleaning unit；
The wear-type collection assembly includes head fixed ring, and the head fixed ring and the first telescope support activity connect
It connects, first telescope support is flexibly connected far from head fixed ring one end with the second telescope support, second telescope support
It is fixedly installed with exhaust fan support shaft far from first telescope support one end, movable sleeve is equipped with exhaust fan on the exhaust fan support shaft
Bracket, the exhaust fan bracket is fixedly connected far from second telescope support one end with exhaust fan seat axis, on the exhaust fan seat axis
Movable sleeve is equipped with exhaust fan seat, and secondhand smoke exhaust fan is fixedly installed in the exhaust fan seat, is also fixed on the exhaust fan seat
Smoke conveying duct is installed, the smoke conveying duct passes through the wear-type collection assembly connector on plastic tube and purifying box
Connection.
Preferably, it is movably installed with lifting baffle on the cabinet, is fixedly installed with air inlet grille on the inside of the lifting baffle
Grid, the air cleaning unit are followed successively by sponge filter layer, HEPA filter screen and activated carbon adsorption layer from the bottom up.
Preferably, the secondhand smoke exhaust fan is also fixedly installed with exhaust fume collecting hood far from exhaust fan seat one end.
Preferably, first telescope support and the second telescope support are made of connection frame, telescopic rod and sleeve, described
Connection frame is fixedly connected with telescopic rod, and the telescopic rod activity is plugged in sleeve.
Compared with prior art, the beneficial effects of the present invention are:
1, the present invention can be worn on head, can be in the same of work without limiting the scope of activities of user when use
When secondhand smoke is collected and is purified；
2, the present invention is used for multiple wear-type collection assembly connectors, can satisfy more people while using, and does not interfere with each other,
Germ can be effectively prevent to infect, while secondhand smoke purification efficiency is high；
3, the present invention can not only carry out the purification of secondhand smoke, moreover it is possible to purify to air, use scope is wide.
The present invention can be worn on head, can satisfy more people while using, while can also purify to air, second-hand
Cigarette purification efficiency is high, and use scope is wide, and the pure and fresh of air has been effectively ensured, and is suitble to be promoted in public Administrative Area.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is that wear-type collection assembly of the invention opens schematic diagram；
Fig. 3 is that wear-type collection assembly of the invention folds schematic diagram；
Fig. 4 is purifying box schematic diagram of internal structure of the invention；
Fig. 5 is the first telescope support of the invention, the second telescopic support structure schematic diagram.
In figure: 1 purifying box, 2 wear-type collection assemblies, 3 cabinets, 4 exhaust fans, 5 wear-type collection assembly connectors, 6 skies
Air purifying apparatus, 7 head fixed rings, 8 first telescope supports, 9 second telescope supports, 10 exhaust fan support shafts, 11 exhaust fan branch
Frame, 12 exhaust fan seat axis, 13 exhaust fan seats, 14 secondhand smoke exhaust fans, 15 smoke conveying ducts, 16 plastic tubes, 17 lifting baffles,
18 air-inlet grilles, 19 sponge filter layers, 20 HEPA filter screens, 21 activated carbon adsorption layers, 22 exhaust fume collecting hoods, 23 connection frames, 24 are stretched
Bar, 25 sleeves.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-5 is please referred to, the present invention provides a kind of technical solution:
A kind of secondhand smoke is collected and environment friendly purification apparatus, including purifying box 1 and wear-type collection assembly 2, purifying box 1 are used for
Air and second-hand flue gas are purified, wear-type collection assembly 2 includes cabinet 3 for collecting secondhand smoke, purifying box 1, and cabinet 3 is as net
Change the bogey of each component in case 1, be fixedly installed with exhaust fan 4 on cabinet 3, the exhaust fan 4 in the present embodiment is using external
Power supply power supply, using its opening and closing of the switch control being mounted on purifying box 1, exhaust fan 4 will be for that will purify air and second-hand flue gas
It sucks in purifying box 1,1 bottom of cabinet is fixedly installed with several wear-type collection assembly connectors 5, the connection of wear-type collection assembly
Mouth 5 is connect by plastic tube 16 with wear-type collection assembly 2, convenient if stem structure can connect multiple wear-type collection assemblies 2
More people use simultaneously, are equipped with air cleaning unit 6 inside cabinet 1, air cleaning unit 6 be used for air and second-hand flue gas into
Row purification；
Wear-type collection assembly 2 includes head fixed ring 7, head fixed ring 7 for being worn on the head, head fixed ring 7 with
First telescope support 8 is flexibly connected, and is equipped with shaft in head fixed ring 7, and 8 activity of the first telescope support is plugged in shaft,
First telescope support 8 can be rotated around shaft, while the first telescope support 8 can according to need extension or shortening, conveniently not
It adjusting and uses with user, the first telescope support 8 is flexibly connected far from 7 one end of head fixed ring with the second telescope support 9, and second
Telescope support 9 can be rotated around the first telescope support 8, and the second telescope support 9 is fixedly mounted far from 8 one end of the first telescope support
There is exhaust fan support shaft 10, is used to that exhaust fan bracket 11 be installed on exhaust fan support shaft 10, surrounds exhaust fan bracket 11
Exhaust fan support shaft 10 rotates, and movable sleeve is equipped with exhaust fan bracket 11 on exhaust fan support shaft 10, and exhaust fan bracket 11 is used for will
Exhaust fan seat 13 is supported, and exhaust fan bracket 11 is fixedly connected far from 9 one end of the second telescope support with exhaust fan seat axis 12, is taken out
Gas fans movable sleeve on seat axis 12 and is equipped with exhaust fan seat 13, and movable sleeve is equipped with exhaust fan seat 13, exhaust fan seat on exhaust fan seat axis 12
Secondhand smoke exhaust fan 14 is fixedly installed in 13, secondhand smoke exhaust fan 14 is used to for secondhand smoke being pumped into exhaust fan seat 13, pumping
Also be fixedly installed with smoke conveying duct 15 on fan seat 13, be pumped into flue gas in exhaust fan seat 13 by smoke conveying duct 15 into
Enter in plastic tube 16, smoke conveying duct 15 is connected by 5 connector of wear-type collection assembly on plastic tube 16 and purifying box 1
It connects, final flue gas is entered in purifying box 1 by plastic tube 16, is purified by purifying box 1, and the secondhand smoke in the present embodiment is taken out
Gas fan 14 is powered by the rechargeable battery being built in head fixed ring 7, passes through the switch control being mounted in head fixed ring 7
Make its opening and closing.
Preferably as one, lifting baffle 17 is movably installed on cabinet 3, lifting baffle 17 can be on cabinet 3 up and down
Mobile, when opening up, air can be entered in purifying box 1 by air-inlet grille 18, lifted and be fixedly mounted on the inside of baffle 17
There is air-inlet grille 18, when using wear-type collection assembly 2, the lifting drop-down of baffle 17 is closed, prevents secondhand smoke from air inlet grille
Grid 18, which overflow to shed, to be come, and secondhand smoke air cleaning unit 6 is followed successively by sponge filter layer 19, HEPA filter screen 20 and activity from the bottom up
Charcoal adsorption layer 21, sponge filter layer 19 are used for primary filtration larger particles, and HEPA filter screen can filter tiny particles content, living
Property charcoal adsorption layer 21 flue gas and pernicious gas can be adsorbed, so that flue gas and air are finally carried out purification filtering, only
Air after change is discharged into air again by exhaust fan 4.
As one, preferably secondhand smoke exhaust fan 14 is also fixedly installed with exhaust fume collecting hood 22 far from 13 one end of exhaust fan seat, collection
It is scattered that petticoat pipe 22 can prevent secondhand smoke from overflowing, and collects secondhand smoke sufficiently by secondhand smoke exhaust fan 14.
Preferably as one, the first telescope support 8 and the second telescope support 9 are by connection frame 23, telescopic rod 24 and sleeve
25 form, and for installing connection component, connection frame 23 is fixedly connected with telescopic rod 24 on connection frame 23 and 25 both ends of sleeve, stretch
24 activity of bar is plugged in sleeve 25, and telescopic rod 24 can stretch in sleeve 25, convenient for users to adjusting spacing.
Working principle: when purifying usually to air, by lifting baffle 17, lifting is opened upwards, opens purifying box 1
On exhaust fan 4 switch, air is entered in purifying box 1 by air-inlet grille 18, is carried out by air cleaning unit 6 to air net
Change, when needing to carry out secondhand smoke purification, wear-type collection assembly 2 need to be only worn on head, lifting baffle 17 is closed, is beaten
Exhaust fume collecting hood 22 is adjusted in front of lip by the motor switch in beginning portion fixed ring 7, and when smoking spits flue gas to exhaust fume collecting hood 22
Interior, second-hand flue gas is transported in purifying box 1 under the action of secondhand smoke exhaust fan 14 by plastic tube 16, is filled by air cleaning
It sets 6 to be purified, be discharged into air again eventually by exhaust fan 4, to be filtered to air and second-hand flue gas.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (4)
1. a kind of secondhand smoke is collected and environment friendly purification apparatus, including purifying box (1) and wear-type collection assembly (2), feature exists
In: the purifying box (1) includes cabinet (3), is fixedly installed with exhaust fan (4) on the cabinet (3), cabinet (1) bottom
Several wear-type collection assembly connectors (5) are fixedly installed with, air cleaning unit (6) are installed inside the cabinet (1)；
The wear-type collection assembly (2) includes head fixed ring (7), the head fixed ring (7) and the first telescope support (8)
It is flexibly connected, first telescope support (8) is flexibly connected far from head fixed ring (7) one end with the second telescope support (9), institute
It states the second telescope support (9) and is fixedly installed with exhaust fan support shaft (10), the exhaust fan far from the first telescope support (8) one end
Movable sleeve is equipped with exhaust fan bracket (11) on support shaft (10), and the exhaust fan bracket (11) is far from the second telescope support (9) one
End is fixedly connected with exhaust fan seat axis (12), and movable sleeve is equipped with exhaust fan seat (13) on the exhaust fan seat axis (12), the pumping
It is fixedly installed with secondhand smoke exhaust fan (14) in gas fan seat (13), flue gas conveying is also fixedly installed on the exhaust fan seat (13)
Pipeline (15), the smoke conveying duct (15) are connected by the wear-type collection assembly (5) on plastic tube (16) and purifying box (1)
Interface connection.
2. a kind of secondhand smoke according to claim 1 is collected and environment friendly purification apparatus, it is characterised in that: the cabinet (3)
On be movably installed with lifting baffle (17), the lifting baffle (17) inside is fixedly installed with air-inlet grille (18), the air
Purification device (6) is followed successively by sponge filter layer (19), HEPA filter screen (20) and activated carbon adsorption layer (21) from the bottom up.
3. a kind of secondhand smoke according to claim 1 is collected and environment friendly purification apparatus, it is characterised in that: the secondhand smoke is taken out
Gas fan (14) is also fixedly installed with exhaust fume collecting hood (22) far from exhaust fan seat (13) one end.
4. a kind of secondhand smoke according to claim 1 is collected and environment friendly purification apparatus, it is characterised in that: described first is flexible
Bracket (8) and the second telescope support (9) are made of connection frame (23), telescopic rod (24) and sleeve (25), the connection frame
(23) it is fixedly connected with telescopic rod (24), telescopic rod (24) activity is plugged in sleeve (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910716545.5A CN110302602A (en) | 2019-08-05 | 2019-08-05 | A kind of secondhand smoke is collected and environment friendly purification apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910716545.5A CN110302602A (en) | 2019-08-05 | 2019-08-05 | A kind of secondhand smoke is collected and environment friendly purification apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110302602A true CN110302602A (en) | 2019-10-08 |
Family
ID=68082999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910716545.5A Pending CN110302602A (en) | 2019-08-05 | 2019-08-05 | A kind of secondhand smoke is collected and environment friendly purification apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110302602A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112516742A (en) * | 2020-11-11 | 2021-03-19 | 盘锦大工碱蓬生物科技有限公司 | Public occasion second-hand smoke protection device |
| CN112516743A (en) * | 2020-11-11 | 2021-03-19 | 辽宁泓新科技成果转化服务有限公司 | Public occasion second-hand smoke protection device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201669059U (en) * | 2010-04-26 | 2010-12-15 | 金剑生 | Novel cigarette filter purifier |
| KR20110097019A (en) * | 2010-02-24 | 2011-08-31 | 김경중 | Portable air cleaner |
| CN203215864U (en) * | 2013-03-28 | 2013-09-25 | 沙太宝 | Filter for personal smoking |
| CN103721483A (en) * | 2014-01-20 | 2014-04-16 | 洛阳市睿仕行智能科技发展有限公司 | Portable/household dual-purpose air cleaner |
| CN205360952U (en) * | 2016-02-04 | 2016-07-06 | 于鑫 | Carriage and indoor cigarette gas cleaning ware |
| CN207137172U (en) * | 2017-08-31 | 2018-03-27 | 山东鲁交智能设备股份有限公司 | A kind of haze respirator |
| CN208243934U (en) * | 2018-04-09 | 2018-12-18 | 中国矿业大学(北京) | A kind of dual anti-dust mask of the mining power that one or more people use air-supply |
-
2019
- 2019-08-05 CN CN201910716545.5A patent/CN110302602A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110097019A (en) * | 2010-02-24 | 2011-08-31 | 김경중 | Portable air cleaner |
| CN201669059U (en) * | 2010-04-26 | 2010-12-15 | 金剑生 | Novel cigarette filter purifier |
| CN203215864U (en) * | 2013-03-28 | 2013-09-25 | 沙太宝 | Filter for personal smoking |
| CN103721483A (en) * | 2014-01-20 | 2014-04-16 | 洛阳市睿仕行智能科技发展有限公司 | Portable/household dual-purpose air cleaner |
| CN205360952U (en) * | 2016-02-04 | 2016-07-06 | 于鑫 | Carriage and indoor cigarette gas cleaning ware |
| CN207137172U (en) * | 2017-08-31 | 2018-03-27 | 山东鲁交智能设备股份有限公司 | A kind of haze respirator |
| CN208243934U (en) * | 2018-04-09 | 2018-12-18 | 中国矿业大学(北京) | A kind of dual anti-dust mask of the mining power that one or more people use air-supply |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112516742A (en) * | 2020-11-11 | 2021-03-19 | 盘锦大工碱蓬生物科技有限公司 | Public occasion second-hand smoke protection device |
| CN112516743A (en) * | 2020-11-11 | 2021-03-19 | 辽宁泓新科技成果转化服务有限公司 | Public occasion second-hand smoke protection device |
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191008 |
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| RJ01 | Rejection of invention patent application after publication |