CN109751748A - New blower backward flow preventing device - Google Patents
New blower backward flow preventing device Download PDFInfo
- Publication number
- CN109751748A CN109751748A CN201910169923.2A CN201910169923A CN109751748A CN 109751748 A CN109751748 A CN 109751748A CN 201910169923 A CN201910169923 A CN 201910169923A CN 109751748 A CN109751748 A CN 109751748A
- Authority
- CN
- China
- Prior art keywords
- air inlet
- wind deflector
- new blower
- wind
- transmission shaft
- 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
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
It the present invention provides a kind of new blower backward flow preventing device, solves that new blower stops air-valve and air inlet closure is not tight, is also easy to produce downdraught problem；The device includes bracket, and one end is supporting plate, is provided with movement guide groove, and the other end is connected with firm banking, and firm banking is set in indoor air inlet or outdoor air inlet；First wind deflector and the second wind deflector are located at the two sides of supporting plate, are connected between two wind deflectors by connecting column, and connecting column passes through movement guide groove and can move back and forth wherein；Driving mechanism is set on supporting plate, and it is connected with transmission shaft, and external screw thread is provided on transmission shaft, and through-hole is provided on the first wind deflector, and internal screw thread is provided in through-hole, and driving device drives transmission shaft rotation, and the first wind deflector can move on transmission shaft；The present invention can start the unlatching closure for flowing backward wind apparatus according to the operational mode of new blower, be closed completely in the power-offstate with air inlet, due to the effect of transmission shaft, can prevent downdraught phenomenon.
Description
Technical field
The present invention relates to fresh air technical fields, more particularly, to a kind of new blower backward flow preventing device.
Background technique
New blower is a kind of effective air cleaning facility, and room air can be made to generate circulation, on the one hand indoor dirty
Outdoor is discharged in turbid air, on the other hand outdoor ozone by sterilizing, after the measures such as disinfection, filtering, then is input to
Interior, allow all be all the time in room fresh clean air；New blower generally includes interior circulation pattern, outer circulation mode
Deng.
Applicants have discovered that the prior art at least has following technical problem: the new blower in part on domestic market exists
Air inlet will lead to new blower in the shutdown state, outdoor wind is by outdoor air inlet without wind apparatus (without air-valve is stopped) is flowed backward in this way
Interior is blown to, especially blows to interior in winter makes outdoor cold wind, human body sensory is brought and uncomfortable easily causes flu.
Most of fresh air machine is improved regarding to the issue above, and backward flow preventing device (only air-valve) is arranged in air inlet,
But since structure design is not reasonable, in the power-offstate, what the wind deflector presence of backward flow preventing device cannot be closed completely
Situation or wind deflector and new air inlet closure effect are poor, when outdoor wind-force is excessive, wind deflector are caused directly to be blown open,
Reverse-filling wind action can not be played.
In view of this, new blower backward flow preventing device and air inlet how to be prevented to be closed not tight caused downdraught phenomenon,
As urgent problem to be solved.
Summary of the invention
The purpose of the present invention is to provide a kind of new blower backward flow preventing devices, to solve fresh air existing in the prior art
The technical issues of backward flow preventing device of machine or only air-valve and air inlet closure be not tight, is also easy to produce downdraught；It is provided by the invention
Many technical effects elaboration as detailed below that optimal technical scheme in many technical solutions can be generated.
To achieve the above object, the present invention provides following technical schemes:
New blower backward flow preventing device provided by the invention, be set to new blower indoor air inlet and outdoor air inlet it
Between, comprising:
Bracket, one end are supporting plate, and movement guide groove is provided on the supporting plate, and the other end is connected with firm banking, institute
Firm banking is stated to be set in indoor air inlet or outdoor air inlet；
First wind deflector and the second wind deflector are located at the two sides of the supporting plate, lead between two wind deflectors
It crosses connecting column to be connected, the connecting column passes through the movement guide groove and can move back and forth wherein；
Driving mechanism is set on the supporting plate, and it is connected with transmission shaft, and outer spiral shell is provided on the transmission shaft
Line is provided with through-hole on first wind deflector, is provided with internal screw thread in the through-hole, when the driving device drives the biography
Moving axis forward or reverse when, first wind deflector can move back and forth on the transmission shaft, and drive the second gear simultaneously
Aerofoil moves back and forth, so that first wind deflector or second wind deflector accordingly close indoor air inlet or outdoor air inlet
Mouthful.
Preferably, the movement guide groove is the hollow cylinder for protruding from the supporting plate surface, and it is perpendicular to the supporting plate
Setting.
Preferably, the quantity of the movement guide groove is two, and the quantity of the connecting column is two, and its both ends is set respectively
It is placed on the opposite face of first wind deflector and second wind deflector, two connecting columns are located at the corresponding fortune
It can move back and forth in dynamic guide groove and wherein.
Preferably, further include air inlet cavity box, be set to the outdoor air inlet side, the court of the air inlet cavity box
Box body air inlet is offered to the side of the indoor air inlet, box body air inlet is communicated with outdoor air inlet, outside air energy
Enter in new blower via the box body air inlet；The driving device drives the transmission shaft rotation, second wind deflector
It can be connected on the side wall of the air inlet cavity box and close the box body air inlet.
Preferably, the firm banking is frame structure, is provided with fixed plate on the firm banking, in the fixed plate
Multiple ventilation holes are provided with, the transmission shaft is placed through the ventilation hole in the middle part of the fixed plate and can carry out rotation fortune wherein
It is dynamic.
Preferably, the fixed plate is strip, is set to the close indoor air inlet one of the firm banking
Side, multiple ventilation holes are uniformly distributed in the fixed plate.
Preferably, it is provided with fixed ear on the firm banking, bolt or screw are provided in the fixed ear so that institute
Firm banking is stated to be fixed on the indoor air inlet.
Preferably, the area of first wind deflector and second wind deflector is all larger than the indoor air inlet and described
Outdoor air inlet.
Preferably, the firm banking is circular frame, and first wind deflector is circular slab, first wind deflector
Outer diameter is less than the internal diameter of the firm banking；The side of first wind deflector towards the indoor air inlet is provided with sealing
Pad, when driving device rotation drives first wind deflector to close the indoor air inlet, first wind deflector will
The firm banking is closed, and the gasket is connected in the inner ring of the firm banking.
Preferably, the gasket is foam-rubber cushion.
New blower backward flow preventing device provided by the invention has the following beneficial effects: compared with prior art
Above-mentioned apparatus can start according to the operational mode (interior circulation, outer circulation, shutdown) of new blower and flow backward wind apparatus
Closure or openness；Under outer circulation pattern state, driving device drives transmission shaft rotation, and corresponding wind deflector is towards indoor air inlet
Side movement prevents room air from entering and causes mixed wind until wind deflector is closed completely indoor air inlet；In shutdown and interior cyclic module
Under formula state, driving device drives transmission shaft rotation, and corresponding wind deflector is moved towards outdoor air inlet side, until being closed completely room
External air inlet port prevents outdoor air from entering；Since transmission shaft and wind deflector are cooperated by internal and external threads, while moving setting for guide groove
Setting prevents wind deflector from rotating, guarantee wind deflector while being moved back and forth on transmission shaft, be capable of fixing wind deflector, wind-force compared with
In the case where big, all it is difficult to blow wind deflector generation downdraught phenomenon open.In practical application scene, outdoor cold wind stream can be prevented
It moves to interior.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of new blower backward flow preventing device；
Fig. 2 is in shutdown and interior circulation pattern, and the second wind deflector closes the signal of outdoor air inlet and box body air inlet
Figure；
Fig. 3 is in outer circulation pattern, and the first wind deflector closes the schematic diagram of indoor air inlet；
1, bracket in figure；2, supporting plate；3, guide groove is moved；4, the first wind deflector；5, the second wind deflector；6, connecting column；7, it passes
Moving axis；8, firm banking；9, cavity box is entered the wind；10, fixed plate；11, ventilation hole；12, rotating electric machine；13, indoor air inlet；
14, box body air inlet；15, fixed ear.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, technical solution of the present invention will be carried out below
Detailed description.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are obtained all without making creative work
Other embodiment belongs to the range that the present invention is protected.
In the description of the present invention, it is to be understood that, term " center ", " length ", " width ", " height ", "upper",
The orientation of instructions such as "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " side " or
Positional relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description of the present invention and simplification of the description, without
It is that the equipment of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore not
It can be interpreted as limitation of the present invention.In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or two
More than.
The present invention provides a kind of new blower backward flow preventing devices, are set to new blower indoor air inlet and outdoor air inlet
Between, referring to Fig.1, Fig. 1 is the structural schematic diagram of new blower backward flow preventing device；It include: bracket 1, one end is supporting plate 2, support
Movement guide groove 3 is provided on plate 2, the other end is connected with firm banking 8, and firm banking 8 is set to indoor air inlet 13 or room
In external air inlet port；
First wind deflector 4 and the second wind deflector 5 are located at the two sides of supporting plate 2, pass through connection between two wind deflectors
Column 6 is connected, and connecting column 6 passes through movement guide groove 3 and can move back and forth wherein；
Driving mechanism is set on supporting plate 2, and it is connected with transmission shaft 7, is provided with external screw thread on transmission shaft 7, and first
Be provided with through-hole on wind deflector 4, be provided with internal screw thread in through-hole, when driving device drive transmission shaft 7 forward or reverse when, first
Wind deflector 4 can move back and forth on transmission shaft 7, and drive simultaneously the second wind deflector 5 move back and forth so that the first wind deflector 4 or
Second wind deflector 5 accordingly closes indoor air inlet 13 or outdoor air inlet.
Wherein above-mentioned driving mechanism can be rotating electric machine, and the output shaft of rotating electric machine and above-mentioned transmission shaft 7 are sequentially connected；
The power device that other forms can also be used in certain driving mechanism drives transmission shaft forward or reverse.Present invention specific implementation below
It is illustrated by taking rotating electric machine as an example in example.It should be understood that supporting plate 2 plays the role of fixed rotating electric machine, 2 middle part of supporting plate
The settable through-hole for allowing transmission shaft 7 to rotate, such as can in above-mentioned through-hole fixing bearing, transmission shaft 7 or rotating electric machine 12 it is defeated
Shaft is fixed on the inner ring of bearing, and above structure can guarantee that the normally rotation of transmission shaft 7 is unaffected, is set as due to above-mentioned
Conventional arrangement in the art, therefore detailed description is no longer shown in figure.
New blower backward flow preventing device provided by the invention, the beneficial effect is that: above-mentioned apparatus can be according to new blower
The closure or openness of wind apparatus are flowed backward in operational mode (interior circulation, outer circulation, shutdown) starting；Under outer circulation pattern state, drive
Dynamic device drives transmission shaft 7 to rotate, and a wind deflector is moved towards 13 side of indoor air inlet, until wind deflector is closed completely interior
Air inlet 13 prevents room air from entering and causes mixed wind；It is shutting down under interior circulation pattern state, driving device drives transmission shaft
7 rotations, another wind deflector is moved towards outdoor air inlet side, until be closed completely outdoor air inlet, prevent outdoor air into
Enter；Since transmission shaft 7 and wind deflector are cooperated by internal and external threads, while the setting for moving guide groove 3 prevents wind deflector from rotating, and is protecting
Wind deflector is demonstrate,proved while moving back and forth on transmission shaft 7, wind deflector is capable of fixing, in the biggish situation of wind-force, is all difficult to blow
It opens wind deflector and generates downdraught phenomenon.In practical application scene, outdoor cold wind can be prevented and flow to interior.
Wherein, the effect of above-mentioned movement guide groove 3 is, so that the first wind deflector 4 does not do rotation fortune to transmission shaft 7 when rotated
It is dynamic, but move back and forth on transmission shaft 7.
Specifically, referring to Fig.1, movement guide groove 3 is the open tubular column for protruding from 2 surface of supporting plate as optional embodiment
Body, and it is arranged perpendicular to supporting plate 2.
The movement guide groove 3 of above-mentioned hollow cylinder, so that the first wind deflector 4 is connected when moving towards indoor air inlet 13
Column 6 movement guide groove 3 hollow cylinder linear movement without being rotated with transmission shaft 7, thus smoothly by outdoor air inlet
The second wind deflector 5 on mouth is opened.
In order to enable the linear reciprocating motion process of the first wind deflector 4 and the second wind deflector 5 is more steady, as optional
Embodiment, referring to Fig.1, the quantity of movement guide groove 3 are two, and the quantity of connecting column 6 is two, and its both ends is respectively arranged at
On the opposite face of first wind deflector 4 and the second wind deflector 5, two connecting columns 6 are located in corresponding sports guide groove 3 and can be at them
Middle reciprocating motion.
Preferably, movement guide groove 3 is set to the surface two sides of supporting plate 2, and connecting column 6 is equally close to 4 He of the first wind deflector
The avris of second wind deflector 5 is arranged, and above structure can enhance its reciprocating motion compared to single movement guide groove 3 and connecting column 6
Stationarity.
When outdoor wind-force is larger, wind deflector is blown in order to reduce outdoor wind, as optional embodiment, ginseng
It is in shutdown and when interior circulation pattern according to Fig. 2 and Fig. 3, Fig. 2, the second wind deflector closes showing for outdoor air inlet and box body air inlet
It is intended to；Fig. 3 is in outer circulation pattern, and the first wind deflector closes the schematic diagram of indoor air inlet；The specific embodiment of the invention
New blower backward flow preventing device further includes air inlet cavity box 9, is set to outdoor air inlet side, enters the wind the direction of cavity box 9
The side of indoor air inlet 13 offers box body air inlet 14, and box body air inlet 14 is communicated with outdoor air inlet, outside air energy
Enter in new blower via box body air inlet 14；Driving device drives transmission shaft 7 to rotate, and the second wind deflector 5 can be connected to air inlet
It is closed on the side wall of cavity box 9 and by box body air inlet 14.Wherein, above-mentioned air inlet cavity box 9 can directly pass through screw or bolt
It is fixed on the wall in outdoor air inlet, outdoor air inlet is being not shown in the figure.
Above-mentioned setting enables outdoor air to be introduced into air inlet cavity box 9 by outdoor air inlet, then passes through air-inlet cavity
The box body air inlet 14 of body box 9 enters in new blower, and when extraneous wind-force is larger, wind is first buffered in air inlet cavity box 9,
It can be effectively prevent to directly act on wind deflector to damage it, prevent the generation of downdraught phenomenon, prevented outdoor cold
Wind flow to interior.
As optional embodiment, referring to Figures 1 and 2, firm banking 8 is frame structure, is provided on firm banking 8
Fixed plate 10, is provided with multiple ventilation holes 11 in fixed plate 10, transmission shaft 7 be placed through the ventilation hole 11 at 10 middle part of fixed plate and
It can be rotated wherein.
The setting of above-mentioned firm banking 8 is convenient for whole device to be fixed on indoor air inlet 13, as shown in Fig. 2, fixed
Pedestal 8 can cover indoor air inlet 13；The effect of above-mentioned fixed plate is one end of transmission shaft 7 to be fixed, in order not to shadow
The rotation of transmission shaft 7 is rung, the internal diameter of ventilation opening may be slightly larger than the outer diameter of transmission shaft 7, or setting bearing is fixed.Simultaneously solid
Multiple through-holes are arranged on fixed board 10 is convenient for indoor wind to enter from indoor air inlet 13.
The close of firm banking 8 is set to as shown in Fig. 2, fixed plate 10 is strip as optional embodiment
13 side of indoor air inlet, multiple ventilation holes 11 are uniformly distributed in fixed plate 10.
It is referring to Fig.1, fixed as optional embodiment for the ease of firm banking 8 is fixed on indoor air inlet side
It is provided with fixed ear 15 on pedestal 8, bolt or screw are provided in fixed ear 15 so that firm banking 8 is fixed on indoor air inlet
On 13.
In the case where wind deflector is closed, wind-fall fills entrance in order to prevent, as optional embodiment, the first wind deflector 4
Indoor air inlet 13 and outdoor air inlet are all larger than with the area of the second wind deflector 5.
In order to enable wind deflector can completely close indoor air inlet 13 or outdoor air inlet, as optional embodiment party
Formula, referring to FIG. 1, FIG. 2 and FIG. 3, firm banking 8 are circular frame, and the first wind deflector 4 is circular slab, the outer diameter of the first wind deflector 4
Less than the internal diameter of firm banking 8；The side of first wind deflector 4 towards indoor air inlet 13 is provided with gasket, works as driving device
When rotation drives the first wind deflector 4 to close indoor air inlet 13, the first wind deflector 4 closes firm banking 8, and gasket is clamped
In the inner ring of firm banking 8.
The circular frame of above-mentioned firm banking 8 has certain thickness, and fixed plate 10 is disposed in proximity to indoor air inlet 13
Side will not interfere the first wind deflector 4 to be closed fixed frame.As shown in Figures 2 and 3, the first wind deflector 4 is towards indoor air inlet
13 side, which is provided with, has certain thickness gasket, when first wind deflector moves to the inner ring of closure firm banking 8 i.e.
When closing indoor air inlet 13, gasket can guarantee that wind deflector and firm banking 8 have good air-tightness, prevent wind-fall
It fills.
It should be understood that firm banking 8 is also securable to outdoor air inlet side, can equally set on the second wind deflector 5
Gasket is set, above-mentioned Fig. 2 and Fig. 3 is only illustrated as one embodiment.
As optional embodiment, above-mentioned gasket can use foam-rubber cushion.
The specifically used method of above-mentioned new blower backward flow preventing device in the specific embodiment of the invention are as follows: referring to Fig. 2 and figure
3, new blower backward flow preventing device is set between indoor air inlet 13 and outdoor air inlet, for the wind of surge chamber exogenous wind
Air inlet cavity box 9 can be arranged in power in outdoor air inlet；Firm banking 8 is fixed on 13 side of indoor air inlet, when new blower selects
When selecting indoor circulation mode, start rotating electric machine 12, motor rotation drives transmission shaft 7 to rotate, and the first wind deflector 4 is in transmission shaft 7
On moved towards outdoor air inlet side, while connecting column 6 moves in a straight line in movement guide groove 3, drives the second wind deflector 5 to room
The movement of external air inlet port side, until the second wind deflector 5 closes outdoor air inlet or box body air inlet 14, indoor wind is by open interior
Air inlet 13 enters, and prevents outdoor wind-fall from filling.
Opposite, when circulation pattern outside new ventilator selection room, starting rotating electric machine 12, motor rotates round about,
Transmission shaft 7 is driven to rotate, the first wind deflector 4 moves on transmission shaft 7 towards 13 side of indoor air inlet, while connecting column 6 is being transported
Moved in a straight line in dynamic guide groove 3, the second wind deflector 5 driven move to 13 side of indoor air inlet, the second wind deflector 5 leave outdoor into
Air port or box body air inlet 14 close electric rotating until the first wind deflector 4 closure firm banking 8 closes indoor air inlet 13
Machine 12；Outdoor wind is entered by outdoor air inlet, prevents indoor wind from causing mixed wind.When new ventilator selection shutdown mode, should prevent
Outdoor wind enters the room, and the state of two wind deflectors is identical as circulation pattern in opening chamber.
The thread connecting mode of above-mentioned transmission shaft and wind deflector does not interfere the movement of wind deflector, while can prevent wind-force
It is excessive to blow wind deflector open；Simultaneously as outdoor wind is typically larger than indoor wind, outdoor wind-force is crossed senior general's wind deflector and is blown in order to prevent
It opens, air inlet cavity box 9 is set in outdoor air inlet side, extraneous wind-force is buffered.
In the description of this specification, specific features, structure or feature can in any one or more embodiments or
It can be combined in any suitable manner in example.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. a kind of new blower backward flow preventing device, which is characterized in that be set to new blower indoor air inlet and outdoor air inlet it
Between, comprising:
Bracket, one end are supporting plate, movement guide groove are provided on the supporting plate, the other end is connected with firm banking, described solid
Determine pedestal to be set in indoor air inlet or outdoor air inlet；
First wind deflector and the second wind deflector are located at the two sides of the supporting plate, pass through company between two wind deflectors
It connects column to be connected, the connecting column passes through the movement guide groove and can move back and forth wherein；
Driving mechanism is set on the supporting plate, and it is connected with transmission shaft, and external screw thread, institute are provided on the transmission shaft
It states and is provided with through-hole on the first wind deflector, be provided with internal screw thread in the through-hole, when the driving device drives the transmission shaft
When forward or reverse, first wind deflector can move back and forth on the transmission shaft, and drive second wind deflector simultaneously
It moves back and forth, so that first wind deflector or second wind deflector accordingly close indoor air inlet or outdoor air inlet.
2. new blower backward flow preventing device according to claim 1, which is characterized in that the movement guide groove is protrudes from
The hollow cylinder on supporting plate surface is stated, and it is arranged perpendicular to the supporting plate.
3. new blower backward flow preventing device according to claim 1 or 2, which is characterized in that the quantity of the movement guide groove
It is two, the quantity of the connecting column is two, and its both ends is respectively arranged at first wind deflector and described second and keeps out the wind
On the opposite face of plate, two connecting columns are located in the corresponding movement guide groove and can move back and forth wherein.
4. new blower backward flow preventing device according to claim 1, which is characterized in that further include air inlet cavity box, set
It is placed in the outdoor air inlet side, the side towards the indoor air inlet of the air inlet cavity box offers box body air inlet
Mouthful, box body air inlet is communicated with outdoor air inlet, and outside air can enter in new blower via the box body air inlet；The drive
Dynamic device drives the transmission shaft rotation, and second wind deflector can be connected on the side wall of the air inlet cavity box and will be described
Box body air inlet is closed.
5. new blower backward flow preventing device according to claim 1, which is characterized in that the firm banking is frame knot
Structure is provided with fixed plate on the firm banking, multiple ventilation holes is provided in the fixed plate, the transmission shaft is placed through
It ventilation hole in the middle part of the fixed plate and can be rotated wherein.
6. new blower backward flow preventing device according to claim 5, which is characterized in that the fixed plate is strip,
It is set to the close indoor air inlet side of the firm banking, multiple ventilation holes uniformly divide in the fixed plate
Cloth.
7. new blower backward flow preventing device according to claim 5, which is characterized in that be provided on the firm banking solid
Determine ear, bolt or screw are provided in the fixed ear so that the firm banking is fixed on the indoor air inlet.
8. new blower backward flow preventing device according to claim 1, which is characterized in that first wind deflector and described
The area of two wind deflectors is all larger than the indoor air inlet and the outdoor air inlet.
9. new blower backward flow preventing device according to claim 1, which is characterized in that the firm banking is circular frame
Frame, first wind deflector are circular slab, and the outer diameter of first wind deflector is less than the internal diameter of the firm banking；Described first
The side of wind deflector towards the indoor air inlet is provided with gasket, when driving device rotation drives described first to keep out the wind
When plate closes the indoor air inlet, first wind deflector closes the firm banking, and the gasket is connected in institute
It states in the inner ring of firm banking.
10. new blower backward flow preventing device according to claim 9, which is characterized in that the gasket is foam-rubber cushion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910169923.2A CN109751748A (en) | 2019-03-06 | 2019-03-06 | New blower backward flow preventing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910169923.2A CN109751748A (en) | 2019-03-06 | 2019-03-06 | New blower backward flow preventing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109751748A true CN109751748A (en) | 2019-05-14 |
Family
ID=66406869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910169923.2A Pending CN109751748A (en) | 2019-03-06 | 2019-03-06 | New blower backward flow preventing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109751748A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112781159A (en) * | 2019-11-07 | 2021-05-11 | 股份公司安逸尔 | Air-changing type air purifier |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206771626U (en) * | 2017-04-28 | 2017-12-19 | 北京亚都新风净化工程技术有限公司 | Can ceiling mounting type or in-wall mounting new blower fan |
| WO2018018989A1 (en) * | 2016-07-25 | 2018-02-01 | 邹剑寒 | Bicirculating fresh air system and fresh air fan |
| CN109323022A (en) * | 2018-11-17 | 2019-02-12 | 皓庭(唐山）环境科技有限公司 | Preventing air reverse flow air-valve |
| CN209672558U (en) * | 2019-03-06 | 2019-11-22 | 北京全朗科技有限公司 | New blower backward flow preventing device |
-
2019
- 2019-03-06 CN CN201910169923.2A patent/CN109751748A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018018989A1 (en) * | 2016-07-25 | 2018-02-01 | 邹剑寒 | Bicirculating fresh air system and fresh air fan |
| CN206771626U (en) * | 2017-04-28 | 2017-12-19 | 北京亚都新风净化工程技术有限公司 | Can ceiling mounting type or in-wall mounting new blower fan |
| CN109323022A (en) * | 2018-11-17 | 2019-02-12 | 皓庭(唐山）环境科技有限公司 | Preventing air reverse flow air-valve |
| CN209672558U (en) * | 2019-03-06 | 2019-11-22 | 北京全朗科技有限公司 | New blower backward flow preventing device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112781159A (en) * | 2019-11-07 | 2021-05-11 | 股份公司安逸尔 | Air-changing type air purifier |
| CN112781159B (en) * | 2019-11-07 | 2022-07-05 | 股份公司安逸尔 | Air-changing type air purifier |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207422514U (en) | Air processor and with its floor air conditioner | |
| CN208635273U (en) | A kind of workshop replacement aeration cleaner | |
| CN108800413A (en) | A kind of workshop replacement aeration cleaner | |
| CN209672558U (en) | New blower backward flow preventing device | |
| JPH09203534A (en) | Interlock opening or closing device for suction port and discharging port of air conditioner | |
| CN109751748A (en) | New blower backward flow preventing device | |
| CN106225083A (en) | The air-out control method of cabinet air-conditioner and cabinet air-conditioner | |
| CN206222642U (en) | Cabinet air-conditioner | |
| CN108426334A (en) | A kind of medical treatment obstetrical ward disinfection type humidifier | |
| CN107255319A (en) | A kind of air purifier with circumference anglec of rotation exhaust apparatus | |
| CN207050092U (en) | A kind of air purifier with rotating folding air exhausting structure | |
| CN208635262U (en) | Humidifying structure and air processor | |
| CN208572622U (en) | A kind of efficient dustproof power control cabinet | |
| CN207813072U (en) | Reduce the edge protection column of building site dust pollution | |
| CN110227302A (en) | A kind of medical treatment aseptic operating room filter device | |
| CN213273033U (en) | Ventilation structure of elevator car | |
| CN108344050A (en) | Air conditioner indoor unit and air conditioner | |
| CN206291352U (en) | Air-purifying humidification equipment | |
| CN206973747U (en) | A kind of air purifier | |
| CN105944467B (en) | A kind of air cleaning facility | |
| CN209662876U (en) | A kind of domestic air purification equipment | |
| CN208059096U (en) | Air conditioner indoor unit and air conditioner | |
| CN207179862U (en) | One kind removes the vertical window ventilation purifier of gray haze | |
| CN203389921U (en) | Fuming cupboard for plastic bottle large volume infusion production | |
| CN208059094U (en) | Air conditioner indoor unit and air conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |