CN112473307A - Air purifying device - Google Patents

Air purifying device Download PDF

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Publication number
CN112473307A
CN112473307A CN202011483965.2A CN202011483965A CN112473307A CN 112473307 A CN112473307 A CN 112473307A CN 202011483965 A CN202011483965 A CN 202011483965A CN 112473307 A CN112473307 A CN 112473307A
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CN
China
Prior art keywords
fixedly connected
pipe
smoke
support column
connecting pipe
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CN202011483965.2A
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Chinese (zh)
Inventor
刘美琴
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Individual
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Individual
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Priority to CN202011483965.2A priority Critical patent/CN112473307A/en
Publication of CN112473307A publication Critical patent/CN112473307A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D50/00Combinations of methods or devices for separating particles from gases or vapours
    • B01D50/10Combinations of devices covered by groups B01D45/00, B01D46/00 and B01D47/00

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

The invention relates to the field of air purification equipment, in particular to an air purification device, which comprises a support column, an opening and closing structure, a circulating structure, a water inlet structure, a driving structure and a filtering structure, wherein the opening and closing structure is arranged to ensure that the device can be installed at an entrance of a public place to serve as a door for entrance and exit, external smoke can be simply isolated, most of smoke is prevented from entering a smokeless area, the smoke can be mixed with water mist and absorbed together when the smoke is fragrant and free of smoke through the arrangement of the circulating structure, the smoke is prevented from floating into the smokeless area, water for generating water mist can be conveniently supplemented in the device through the arrangement of the water inlet structure, the circulating structure can generate water mist through the arrangement of the driving structure, the water mist and the smoke are absorbed together, the water mist and the smoke absorbed by the circulating structure can be absorbed and filtered through the arrangement of the filtering structure, the smoke is prevented from being discharged into the air again.

Description

Air purifying device
Technical Field
The invention relates to the field of air purification equipment, in particular to an air purification device.
Background
Air purification equipment indicates can absorb the air, filters the back to absorbent air, again with clean air exhaust's equipment, common air purification equipment can filter like micro-particle pollutants such as volatile formaldehyde and PM2.5 to reach the effect that promotes the air quality, improve the air quality in the space.
The existing air purification device is usually used indoors, but because the air purification device can only absorb local air to slowly achieve the effect of purifying the air in the whole space, even if air purification equipment is placed in some public places provided with smoking areas, the smoke is difficult to be prevented from floating to the smokeless areas, and therefore in some public places provided with the smokeless areas, a device is needed to thoroughly separate the smoke from the smokeless areas.
Disclosure of Invention
The invention provides an air purification device aiming at the problems in the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides an air purification device, includes support column, the structure of opening and shutting, loop construction, the structure of intaking, drive structure and filtration, be connected with on the support column and open and shut in order simply to cut apart the space the structure of opening and shutting, be connected with on the support column can exhaust and inspiratory loop construction, be connected with on the support column and can pour water to the device in the structure of intaking, be connected with on the loop construction and drive the whole device function drive structure, be connected with on the loop construction and can carry out filtration treatment to inspiratory air the filtration.
Specifically, the structure that opens and shuts includes revolving door, handle, cushion, rubber pad and first hinge, one side fixedly connected with of support column first hinge, it has to articulate on the first hinge the revolving door, fixedly connected with on the revolving door the handle, just fixedly connected with on the revolving door the cushion, the cushion is located deviating from of revolving door the one end of first hinge, fixedly connected with is two on the support column the rubber pad, two rubber pad parallel arrangement, just first hinge with the revolving door all is located two between the rubber pad.
Specifically, the circulating structure comprises an air suction pipe, a mist discharge pipe, a connecting pipe, a mist discharge hole and an air suction hole, the top end of the supporting column is fixedly connected with the air suction pipe, the bottom end of the supporting column is fixedly connected with the mist discharge pipe, the air suction pipe and the mist discharge pipe are fixedly connected with the connecting pipe together, the connecting pipe is arranged in parallel with the supporting column, the air suction hole is formed in the bottom of the air suction pipe, and the mist discharge hole is formed in the top of the mist discharge pipe in a plurality.
Specifically, the inlet structure includes intake antrum, inlet tube, breakwater and heating rod, fixedly connected with on the support column the intake antrum, just the inside fixedly connected with of support column the inlet tube, the one end of inlet tube is located the inside of intake antrum, the other end and the fog pipe intercommunication of arranging of inlet tube, be equipped with on the bottom inner wall of row fog pipe the heating rod, just fixedly connected with on the inner wall of row fog pipe the breakwater, the breakwater is located the top of heating rod.
Specifically, the drive structure includes motor, bull stick, pivot, flabellum, first gear, second gear, baffle and inlet port, the top fixedly connected with of connecting pipe the motor, it is connected with to rotate on the inner wall of connecting pipe the bull stick, the bull stick with motor fixed connection, it is connected with two to rotate on the inner wall of connecting pipe the pivot, two fixedly connected with flabellum in the pivot, and two equal fixedly connected with in the pivot the second gear, fixedly connected with is two on the bull stick first gear, two first gear respectively with two the second gear meshes mutually, fixedly connected with on the inner wall of connecting pipe the baffle, seted up a plurality ofly on the connecting pipe the inlet port.
Specifically, filtration includes second hinge, chamber door, bottom plate and filter core, fixedly connected with on the connecting pipe the second hinge, it has to articulate on the second hinge the chamber door, fixedly connected with on the inner wall of connecting pipe the bottom plate, can dismantle on the bottom plate and be connected with the filter core.
The invention has the beneficial effects that:
(1) according to the air purification device, due to the arrangement of the opening and closing structure, the device can be installed at an entrance of a public place and used as a door for entrance and exit, external smoke can be isolated simply, most of smoke is prevented from entering a smokeless area, and due to the arrangement of the soft cushion and the rubber pad, smoke cannot pass through the slit at the two ends of the rotary door; through loop configuration's setting, make the flue gas can be when the fragrant smokeless zone of floating, mix the water smoke and be absorbed together, avoid the flue gas to float into the smokeless zone, arrange the fog pipe promptly and can discharge the water smoke, because the flue gas of cigarette is the solid in fact, because easily adhere to on the object, through arranging the fog pipe and discharge the water smoke, water smoke and flue gas clamp together, improve the humidity of flue gas, just can make the flue gas be difficult to adhere to on the object, and make and float together along with vapor, and the breathing pipe can absorb water smoke and flue gas together, and then arrange and filter in the connecting tube.
(2) According to the air purification device, the water inlet structure is arranged, so that water used for generating water mist can be supplemented conveniently in the device, the water can be poured into the water inlet groove, the water in the water inlet groove enters the mist discharge pipe through the water inlet pipe, the water can be located on the water baffle plate and is heated and evaporated by the heating rod to generate the water mist, the water mist is discharged through the mist discharge hole, and the water baffle plate is arranged, so that the water in the mist discharge pipe can be located in the water baffle plate and cannot overflow as long as the water in the water inlet groove does not overflow by utilizing the principle of the communicating vessel.
(3) According to the air purification device, the driving structure is arranged, so that the circulating structure can generate water mist, and the water mist and smoke gas are absorbed together, namely, after the motor is connected with an external power supply and is started, the rotating rod can be driven to rotate, the rotating rod rotates to drive the first gear to rotate, the first gear rotates to drive the second gear to rotate, so that the two rotating shafts can be driven to rotate, the two rotating shafts can drive the fan blades to rotate, the fan blades positioned beside the fog discharge pipe generate air blowing, and the fan blades positioned beside the air suction pipe generate air suction.
(4) According to the air purification device, the water mist and the smoke gas absorbed by the circulating structure can be absorbed and filtered through the arrangement of the filtering structure, the smoke gas is prevented from being discharged into the air again, namely the smoke gas and the water mist absorbed by the air suction pipe can further move to the filter element along with the wind direction and are filtered by the filter element, the filter element can be replaced by opening the box door, the smoke gas is removed through the whole device through air flow and the water mist, the smoke gas is difficult to enter the smokeless area only by installing the device at the inlet of the smokeless area, the upper side and the lower side of the rotating door are close to the air suction pipe and the mist discharge pipe respectively, the air flow force at the two positions is the largest, the smoke gas cannot enter the smokeless area through the two positions, and the two sides of the rotating door are provided with the soft pads and.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic structural diagram illustrating an overall structure of a preferred embodiment of an air purification apparatus according to the present invention;
FIG. 2 is a schematic view of a connection structure between the support column and the opening/closing structure shown in FIG. 1;
FIG. 3 is an enlarged view of the part A shown in FIG. 1;
FIG. 4 is an enlarged view of the portion B shown in FIG. 2;
FIG. 5 is an enlarged view of the portion C shown in FIG. 2;
fig. 6 is an exploded view of a connection structure of the support column and the opening and closing structure shown in fig. 1.
In the figure: 1. the structure of opening and shutting, 21, revolving door, 22, handle, 23, cushion, 24, rubber pad, 25, first hinge, 3, circulation structure, 31, breathing pipe, 32, row's fog pipe, 33, connecting pipe, 34, row's fog hole, 35, suction hole, 4, inlet structure, 41, intake flume, 42, inlet tube, 43, breakwater, 44, heating rod, 5, drive structure, 51, motor, 52, bull stick, 53, pivot, 54, flabellum, 55, first gear, 56, second gear, 57, baffle, 58, inlet port, 6, filtration, 61, second hinge, 62, chamber door, 63, bottom plate, 64, filter core.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 6, the air purification device of the present invention includes a support column 1, an opening and closing structure 2, a circulation structure 3, a water inlet structure 4, a driving structure 5, and a filtering structure 6, wherein the opening and closing structure 2 capable of opening and closing to simply divide a space is connected to the support column 1, the circulation structure 3 capable of exhausting and sucking air is connected to the support column 1, the water inlet structure 4 capable of pouring water into the device is connected to the support column 1, the driving structure 5 for driving the whole device to operate is connected to the circulation structure 3, and the filtering structure 6 capable of filtering sucked air is connected to the circulation structure 3.
Specifically, the opening and closing structure 2 comprises a rotating door 21, a handle 22, a cushion 23, rubber pads 24 and a first hinge 25, the first hinge 25 is fixedly connected to one side of the supporting column 1, the rotating door 21 is hinged to the first hinge 25, the handle 22 is fixedly connected to the rotating door 21, the cushion 23 is located at one end of the rotating door 21, which is far away from the first hinge 25, the two rubber pads 24 are fixedly connected to the supporting column 1, the two rubber pads 24 are arranged in parallel, the first hinge 25 and the rotating door 21 are located between the two rubber pads 24, and the cushion 23 and the rubber pads 24 are arranged so that smoke does not pass through the fine seams at the two ends of the rotating door 21; through circulation structure 3's setting, make the flue gas can be when the fragrant smokeless zone that wafts, mix the water smoke and be absorbed together, avoid the flue gas to waft into the smokeless zone, arrange fog pipe 32 promptly and can discharge the water smoke, because the flue gas of cigarette is the solid in fact, because easily adhere to on the object, through arranging fog pipe 32 discharge water smoke, water smoke and flue gas clamp together, improve the humidity of flue gas, just can make the flue gas be difficult to adhere to on the object, and make and waft together along with vapor, and breathing pipe 31 can absorb water smoke and flue gas together, and then arrange and filter in connecting pipe 33.
Specifically, the circulating structure 3 includes an air suction pipe 31, a mist discharge pipe 32, a connecting pipe 33, a mist discharge hole 34 and an air suction hole 35, the top end of the supporting pillar 1 is fixedly connected with the air suction pipe 31, the bottom end of the supporting pillar 1 is fixedly connected with the mist discharge pipe 32, the air suction pipe 31 and the mist discharge pipe 32 are jointly and fixedly connected with the connecting pipe 33, the connecting pipe 33 is parallel to the supporting pillar 1, the air suction hole 35 is formed at the bottom of the air suction pipe 31, the plurality of mist discharge holes 34 are formed at the top of the mist discharge pipe 32, the mist discharge pipe 32 can discharge mist, and as the smoke of the cigarette is solid in nature, the smoke is easy to adhere to an object, and the mist is discharged through the mist discharge pipe 32, and the mist and the smoke are clamped together, so that the smoke is not easy to adhere to the object, and the smoke floats up together with water vapor, the air intake pipe 31 can absorb the water mist and the smoke together, and then discharge the water mist and the smoke into the connecting pipe 33 for filtering.
Specifically, the water inlet structure 4 comprises a water inlet tank 41, a water inlet pipe 42, a water baffle 43 and a heating rod 44, the water inlet tank 41 is fixedly connected to the support pillar 1, the water inlet pipe 42 is fixedly connected to the inside of the support pillar 1, one end of the water inlet pipe 42 is located inside the water inlet tank 41, the other end of the water inlet pipe 42 is communicated with the discharged mist pipe 32, the heating rod 44 is arranged on the inner wall of the bottom of the discharged mist pipe 32, the water baffle 43 is fixedly connected to the inner wall of the discharged mist pipe 32, the water baffle 43 is located at the top of the heating rod 44, water can be poured into the water inlet tank 41, the water in the water inlet tank 41 enters the discharged mist pipe 32 through the water inlet pipe 42, the water can be located on the water baffle 43 and is heated and evaporated by the heating rod 44 to generate water mist, the water mist is discharged through the mist discharge hole 34, and the water baffle 43 is arranged, so that the communicating vessel principle can be, as long as the water in the water inlet tank 41 does not overflow, the water in the mist discharge pipe 32 is always located in the water guard 43 and does not overflow.
Specifically, the driving structure 5 includes a motor 51, a rotating rod 52, rotating shafts 53, fan blades 54, first gears 55, second gears 56, partition plates 57 and air inlet holes 58, the top of the connecting pipe 33 is fixedly connected with the motor 51, the inner wall of the connecting pipe 33 is rotatably connected with the rotating rod 52, the rotating rod 52 is fixedly connected with the motor 51, the inner wall of the connecting pipe 33 is rotatably connected with two of the rotating shafts 53, the two of the rotating shafts 53 are fixedly connected with the fan blades 54, the two of the rotating shafts 53 are both fixedly connected with the second gears 56, the rotating rod 52 is fixedly connected with the two of the first gears 55, the two of the first gears 55 are respectively engaged with the two of the second gears 56, the inner wall of the connecting pipe 33 is fixedly connected with the partition plates 57, the connecting pipe 33 is provided with a plurality of the air inlet holes 58, after the motor 51 is connected with an external power supply and is started, the rotating rod 52 can be driven to rotate, the rotating rod 52 rotates to drive the first gear 55 to rotate, the first gear 55 rotates to drive the second gear 56 to rotate, so that the two rotating shafts 53 can be driven to rotate, the two rotating shafts 53 can drive the fan blades 54 to rotate, the fan blades 54 positioned beside the fog discharge pipe 32 generate air blowing, and the fan blades 54 positioned beside the air suction pipe 31 generate air suction.
Specifically, the filtering structure 6 includes a second hinge 61, a box door 62, a bottom plate 63 and a filter element 64, the second hinge 61 is fixedly connected to the connecting pipe 33, the box door 62 is hinged to the second hinge 61, the bottom plate 63 is fixedly connected to the inner wall of the connecting pipe 33, the filter element 64 is detachably connected to the bottom plate 63, smoke and mist inhaled by the air suction pipe 31 can further move to the filter element 64 along with the wind direction and are filtered by the filter element 64, the filter element 64 can be replaced by opening the box door 62, the smoke is removed by the whole device through air flow and mist, so that the smoke is difficult to enter the smokeless area only by installing the device at the entrance of the smokeless area, the upper and lower sides of the rotating door 21 are respectively close to the air suction pipe 31 and the mist discharge pipe 32, the air flow strength of the two places is the greatest, and no smoke can enter the smokeless area through the two places, and both sides of the rotating door 21 are respectively provided with a soft cushion 23 and a rubber cushion 24 for blocking smoke.
When the smoke-free rotary door is used, firstly, the soft cushion 23 and the rubber cushion 24 are arranged, so that smoke can not pass through the thin seams at the two ends of the rotary door 21; the mist discharge pipe 32 can discharge water mist, because the smoke of the cigarette is solid in nature, the smoke is easy to attach to an object, the water mist is discharged through the mist discharge pipe 32, the water mist and the smoke are clamped together, the humidity of the smoke is improved, the smoke is not easy to attach to the object, the smoke floats up along with water vapor, the air suction pipe 31 can absorb the water mist and the smoke together and then is discharged into the connecting pipe 33 for filtering, the water can be poured into the water inlet groove 41, the water in the water inlet groove 41 enters the mist discharge pipe 32 through the water inlet pipe 42, the water is positioned on the water baffle 43 and is heated and evaporated by the heating rod 44 to generate the water mist, the water mist is discharged through the mist discharge hole 34, and the water baffle 43 is arranged, so that the principle of the communicating device can be utilized, as long as the water in the water inlet groove 41 does not overflow, the water in the mist discharge pipe 32 is always positioned in the water baffle 43 and cannot overflow, the motor 51 is connected with an external power supply and is started, the rotating rod 52 can be driven to rotate, the rotating rod 52 rotates to drive the first gear 55 to rotate, the first gear 55 rotates to drive the second gear 56 to rotate, so that the two rotating shafts 53 can be driven to rotate, the two rotating shafts 53 rotate to drive the fan blades 54 to rotate, the fan blades 54 beside the fog discharge pipe 32 generate air blowing, the fan blades 54 beside the air suction pipe 31 generate air suction, the smoke and the water mist sucked by the air suction pipe 31 can further move to the filter element 64 along with the wind direction and are filtered by the filter element 64, the filter element 64 can be replaced by opening the box door 62, the whole device only needs to be installed at an inlet of a smokeless area by removing the smoke through the air flow and the water mist, the smoke is difficult to enter the smokeless area, the upper part and the lower part of the rotating door 21 are respectively close to the air suction pipe 31 and the fog discharge pipe 32, the air flow strength of the two parts is maximum, and both sides of the rotating door 21 are respectively provided with a soft cushion 23 and a rubber cushion 24 for blocking smoke.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (6)

1. An air purification device, characterized in that: including support column (1), structure (2), circulation structure (3), water inlet structure (4), drive structure (5) and filtration (6) open and shut, be connected with on support column (1) and open and shut in order to simply cut apart the space structure (2) opens and shuts, be connected with on support column (1) and can exhaust and inspiratory circulation structure (3), be connected with on support column (1) and to pour water into to the device water inlet structure (4), be connected with on circulation structure (3) and drive the whole device function drive structure (5), be connected with on circulation structure (3) and to carry out filtration to inspiratory air filtration (6).
2. An air cleaning device according to claim 1, characterized in that: structure (2) opens and shuts is including rotating door (21), handle (22), cushion (23), rubber pad (24) and first hinge (25), one side fixedly connected with of support column (1) first hinge (25), it has to articulate on first hinge (25) rotating door (21), fixedly connected with on rotating door (21) handle (22), just fixedly connected with on rotating door (21) cushion (23), cushion (23) are located deviating from of rotating door (21) the one end of first hinge (25), fixedly connected with is two on support column (1) rubber pad (24), two rubber pad (24) parallel arrangement, just first hinge (25) with rotating door (21) all is located two between rubber pad (24).
3. An air cleaning device according to claim 1, characterized in that: circulation structure (3) include breathing pipe (31), row fog pipe (32), connecting pipe (33), row fog hole (34) and suction opening (35), the top fixedly connected with of support column (1) breathing pipe (31), the bottom fixedly connected with of support column (1) row fog pipe (32), breathing pipe (31) with arrange the common fixedly connected with of fog pipe (32) connecting pipe (33), connecting pipe (33) with support column (1) parallel arrangement, seted up in the bottom of breathing pipe (31) suction opening (35), it is a plurality of to arrange the top of fog pipe (32) row fog hole (34).
4. An air cleaning device according to claim 3, characterized in that: intake structure (4) include intake antrum (41), inlet tube (42), breakwater (43) and heating rod (44), fixedly connected with is gone up in support column (1) inlet antrum (41), just the inside fixedly connected with of support column (1) inlet tube (42), the one end of inlet tube (42) is located the inside of inlet antrum (41), the other end and the fog pipe (32) intercommunication of arranging of inlet tube (42), be equipped with on the bottom inner wall of row fog pipe (32) heating rod (44), just fixedly connected with on the inner wall of row fog pipe (32) breakwater (43), breakwater (43) are located the top of heating rod (44).
5. An air cleaning device according to claim 3, characterized in that: the driving structure (5) comprises a motor (51), a rotating rod (52), a rotating shaft (53), fan blades (54), a first gear (55), a second gear (56), a partition plate (57) and an air inlet hole (58), the top of the connecting pipe (33) is fixedly connected with the motor (51), the rotating rod (52) is rotatably connected to the inner wall of the connecting pipe (33), the rotating rod (52) is fixedly connected with the motor (51), the inner wall of the connecting pipe (33) is rotatably connected with two rotating shafts (53), the fan blades (54) are fixedly connected to the two rotating shafts (53), the second gears (56) are fixedly connected to the two rotating shafts (53), the two first gears (55) are fixedly connected to the rotating rod (52), and the two first gears (55) are respectively meshed with the two second gears (56), the inner wall of the connecting pipe (33) is fixedly connected with the partition plate (57), and the connecting pipe (33) is provided with a plurality of air inlets (58).
6. An air cleaning device according to claim 3, characterized in that: filtration (6) include second hinge (61), chamber door (62), bottom plate (63) and filter core (64), fixedly connected with on connecting pipe (33) second hinge (61), it has to articulate on second hinge (61) chamber door (62), fixedly connected with on the inner wall of connecting pipe (33) bottom plate (63), can dismantle on bottom plate (63) and be connected with filter core (64).
CN202011483965.2A 2020-12-16 2020-12-16 Air purifying device Withdrawn CN112473307A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011483965.2A CN112473307A (en) 2020-12-16 2020-12-16 Air purifying device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011483965.2A CN112473307A (en) 2020-12-16 2020-12-16 Air purifying device

Publications (1)

Publication Number Publication Date
CN112473307A true CN112473307A (en) 2021-03-12

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ID=74917882

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011483965.2A Withdrawn CN112473307A (en) 2020-12-16 2020-12-16 Air purifying device

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CN (1) CN112473307A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202199003U (en) * 2011-08-30 2012-04-25 公安部四川消防研究所 Water-fog type smoke-proof air curtain
CN102460027A (en) * 2009-04-24 2012-05-16 Ltb股份有限公司 Smoking room with the air renewed by a laminar flow
KR20120092468A (en) * 2011-02-11 2012-08-21 임철민 Clean smoking booth system for preventing involuntary smoking
CN110344614A (en) * 2019-08-16 2019-10-18 张伟 Inner-outer circulation purifies mobile smoking room
GB201915147D0 (en) * 2019-10-18 2019-12-04 Trieste Group One Ltd A booth

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102460027A (en) * 2009-04-24 2012-05-16 Ltb股份有限公司 Smoking room with the air renewed by a laminar flow
KR20120092468A (en) * 2011-02-11 2012-08-21 임철민 Clean smoking booth system for preventing involuntary smoking
CN202199003U (en) * 2011-08-30 2012-04-25 公安部四川消防研究所 Water-fog type smoke-proof air curtain
CN110344614A (en) * 2019-08-16 2019-10-18 张伟 Inner-outer circulation purifies mobile smoking room
GB201915147D0 (en) * 2019-10-18 2019-12-04 Trieste Group One Ltd A booth

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Application publication date: 20210312

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