CN207484901U - Upper outlet air is kept off the rain blast cap and exhaust system - Google Patents
Upper outlet air is kept off the rain blast cap and exhaust system Download PDFInfo
- Publication number
- CN207484901U CN207484901U CN201721609695.9U CN201721609695U CN207484901U CN 207484901 U CN207484901 U CN 207484901U CN 201721609695 U CN201721609695 U CN 201721609695U CN 207484901 U CN207484901 U CN 207484901U
- Authority
- CN
- China
- Prior art keywords
- rain
- blast cap
- outlet air
- housing
- top plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Air-Flow Control Members (AREA)
Abstract
The utility model provides upper outlet air and keeps off the rain blast cap and exhaust system, is related to smokejack technical field.Be related to outlet air to keep off the rain blast cap, including housing, the top plate being fixedly connected with the housing be provided at the top of the housing, between the top plate and the housing fixed setting be useful for blocking wind and rain and the shutter flowed out for flue gas；The shutter is provided with the deflector for adjusting wind direction with the position that the top plate is mutually connected；Fan outlet is provided on the one side opposite with the top plate of the housing.Exhaust system is further related to, including flue, wind turbine is provided at the fan outlet of the flue, is provided with that the above-mentioned upper outlet air of wind turbine is protected to keep off the rain blast cap on the outside of the wind turbine.It is kept off the rain blast cap and exhaust system using the upper outlet air of the utility model, can realize that common flue oil smoke is discharged upwards, mitigate roof balcony oil smoke smell, it can be achieved that IPX3 rain-proof class requirements.
Description
Technical field
The utility model is related to smokejack technical field, keep off the rain blast cap and exhaust system more particularly, to a kind of upper outlet air.
Background technology
With the raising of people’s lives level, requirement of the people to living environment and life comfort level is also higher and higher；
Since the unclean air in kitchen or toilet is quickly discharged into outdoor by high residential building smokejack, room ventilation ventilation is carried out, because
The requirement that this discharges fume to smokejack is also higher and higher.
In the prior art, high residential building public chimney flue exit is discharged fume with draft fan, and draft fan is
Top air-out structure, due to draft fan installation outdoors, so during rainy day, rainwater can from the fan outlet of draft fan into
Enter inside draft fan, be then flowed into inside public chimney flue, cause common flue internal water accumulation；Building roof in part is at present
Accessible roof, more demanding to the oil smoke smell of roof balcony, existing common flue blast cap is surrounding outlet air, and oil smoke will not be upward
It blows away, and spreads in roof balcony for a long time, bigger harmful effect is caused to roof balcony environment.And currently on the market also
There is no a kind of smokejack that can effectively solve the above problems, existing blank in the industry is caused to fail to be filled up always.
Utility model content
The first of the utility model is designed to provide a kind of upper outlet air and keeps off the rain blast cap, can realize common flue oil smoke to
Upper discharge mitigates roof balcony oil smoke smell, it can be achieved that IPX3 rain-proof class requirements.
A kind of upper outlet air provided by the utility model is kept off the rain blast cap, including housing, is provided at the top of the housing and institute
The top plate that housing is fixedly connected is stated, is fixedly installed between the top plate and the housing and is useful for blocking wind and rain and for flue gas stream
The shutter gone out；
The shutter is provided with the deflector for adjusting wind direction with the position that the top plate is mutually connected；
Fan outlet is provided on the one side opposite with the top plate of the housing.
It should be pointed out that during practical application, the face where shutter is the top of flue gas discharge；In the prior art due to
Draft fan is installed outdoors, so during rainy day, rainwater can enter from the fan outlet of draft fan inside draft fan,
Then it is flowed into inside common flue, causes common flue internal water accumulation；It is above-mentioned in order to solve the problems, such as, so having devised
Above-mentioned upper outlet air is kept off the rain blast cap, and rainwater is blocked by the baffle of case top, then by the fan outlet of case top into
Row air draft, and be provided between top plate and housing the shutter for stopping wind and rain and being flowed out for flue gas, top plate with
The position being mutually connected between shutter is additionally provided with deflector, and flue gas after filtering can be guided at shutter, owns
The flue gas of process can be flowed out by shutter, discharge flue gas upwards therefore, it is possible to realize, flue gas is avoided to gather in roof balcony
Collection, it should be pointed out that each side of the housing of the technical program is entity platy structure, can only carry out upward air draft.
Further, the deflector is angular structure.
Further, the deflector is arranged on the surrounding of the top plate, and two be oppositely arranged the deflector is formed
The obtuse angle structure opened to the enclosure interior.
It should be pointed out that the setting of deflector can avoid the problem that intermediate air-flow smooth cannot be flowed out by shutter,
The windage that middle air flow is subjected to can effectively be reduced.
Further, the deflector is welded to connect with the top plate.
Further, the bottom of the housing is provided with flange arrangement, and the flange arrangement is prolongs to the enclosure interior
It stretches and is used to form the fan outlet.
Further, the shape of the flange arrangement is L-shaped.
Further, the shutter is connected by multiple spacing with blades and set, the spacer between adjacent two blades
From for 8mm-12mm.
Further, on the blade of the shutter setting by bending angle, the angular range at the bending angle for 20 °-
30°。
The second of the utility model is designed to provide a kind of exhaust system, can effectively promote the ability of keeping off the rain, meanwhile,
It can also make flue gas smooth discharge upwards, flue gas will not be made to be gathered in roof balcony.
Including flue, wind is provided at the fan outlet of the flue for a kind of exhaust system provided by the utility model
Machine is provided on the outside of the wind turbine that the upper outlet air described above of wind turbine is protected to keep off the rain blast cap.
Exhaust system can ensure also to be able to effectively to be promoted outlet air while upward air draft is unobstructed and keep off the rain blast cap
It keeps off the rain ability；And then it avoids rainwater and is flowed into inside public chimney flue by the fan outlet of wind turbine and caused in common flue
The problem of ponding.
Further, the wind turbine and the upper outlet air blast cap that keeps off the rain are fixedly connected.
The beneficial effects of the utility model are as follows：
It is kept off the rain blast cap using the upper outlet air of the utility model, including housing, is provided at the top of the housing and the shell
The top plate that body is fixedly connected is fixedly installed what is be useful for blocking wind and rain and flowed out for flue gas between the top plate and the housing
Shutter；The shutter is provided with the deflector for adjusting wind direction with the position that the top plate is mutually connected；The housing
Fan outlet is provided on the one side opposite with the top plate.Due to being provided with top plate at the top of housing, so can keep away
Exempt from rainwater and blower interior is entered by the fan outlet of wind turbine, also avoid being flowed into inside public chimney flue, and then avoid
The problem of causing common flue internal water accumulation；Again since the both sides of top plate and bottom are respectively arranged with shutter, flue gas can pass through
The effect that shutter realization is vented upwards, avoids the flue gas of roof balcony from assembling, while also is able to realize that IPX3 rain-proofs grade will
It asks.
Using the exhaust system of the utility model, including flue, wind turbine, institute are provided at the fan outlet of the flue
It states to be provided on the outside of wind turbine and keep off the rain blast cap for the upper outlet air described above for protecting wind turbine.Due to the exhaust of the utility model
System is kept off the rain blast cap including upper outlet air, so exhaust system can guarantee also to be able to effectively while upward air draft is unobstructed
Outlet air is kept off the rain the ability of keeping off the rain of blast cap in promotion；And then it avoids rainwater and public smoke evacuation is flowed by the fan outlet of wind turbine
The problem of common flue internal water accumulation is caused inside road.
Description of the drawings
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution of the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be the utility model some embodiments, for those of ordinary skill in the art, do not paying creativeness
Under the premise of labour, other attached drawings are can also be obtained according to these attached drawings.
Fig. 1 is that the upper outlet air that provides of the utility model embodiment one is kept off the rain the main structure diagram of blast cap；
Fig. 2 is that the upper outlet air that provides of the utility model embodiment one is kept off the rain the overlooking the structure diagram of blast cap；
Fig. 3 be the upper outlet air that provides of the utility model embodiment one keep off the rain blast cap Fig. 2 in the enlarged structures located of A illustrate
Figure；
Fig. 4 is that the keep off the rain cross-section structure of left view of Fig. 1 of blast cap of the upper outlet air that provides of the utility model embodiment one shows
It is intended to；
Fig. 5 is that the upper outlet air that provides of the utility model embodiment one is kept off the rain the axis side structure schematic diagram of blast cap.
Reference numeral：
The first shutters of 101-；The second shutters of 102-；103- third shutters；104- top plates；105- housings；
201- first flange structures；202- second flange structures；The first deflectors of 203-；The second deflectors of 204-；
205- fan outlets；206- third flange arrangements；The 4th flange arrangements of 207-；208- third deflectors.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model part of the embodiment, instead of all the embodiments.Based on the embodiment in the utility model, sheet
Field those of ordinary skill all other embodiments obtained without making creative work, belong to this practicality
Novel protected range.
In the description of the present invention, it should be noted that term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation of the instructions such as " level ", " interior ", " outer " or position relationship are based on orientation shown in the drawings or position relationship, are only
The utility model must have specific with the device or element for simplifying description rather than instruction or hint meaning for ease of description
Orientation, with specific azimuth configuration and operation, therefore it is not intended that limitation to the utility model.In addition, term " the
One ", " second " is only used for description purpose, and it is not intended that instruction or hint relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integrally
Connection.For the ordinary skill in the art, tool of the above-mentioned term in the utility model can be understood with concrete condition
Body meaning.
The upper outlet air that the present embodiment one and two is described in detail below with reference to Fig. 1-Fig. 5 is kept off the rain the skill of blast cap and exhaust system
Art scheme.
Embodiment one
The specific embodiment of the present embodiment is as follows：
As shown in Figs. 1-5, upper outlet air provided in this embodiment is kept off the rain blast cap, and including housing 105, the top of housing 105 is set
The top plate 104 being fixedly connected with housing 105 is equipped with, is fixedly installed between top plate 104 and housing 105 and is useful for blocking wind and rain and use
In the shutter of flue gas outflow；Shutter is provided with the deflector for adjusting wind direction with the position that 104 phase of top plate is connected；Housing
Fan outlet 205 is provided on 105 one side opposite with top plate 104.
It should be pointed out that during practical application, as shown in Figure 1, the face where shutter is the top of flue gas discharge；It is existing
In technology due to draft fan installation outdoors, so during rainy day, rainwater can enter from the fan outlet 205 of draft fan
It inside draft fan, is then flowed into inside common flue, causes common flue internal water accumulation；In order to solve above-mentioned ask
Topic is kept off the rain blast cap so having devised above-mentioned upper outlet air, is blocked rainwater by the baffle at 105 top of housing, is then passed through housing
The fan outlet 205 at 105 tops carries out air draft, and be provided between top plate 104 and housing 105 for stop wind and rain and
For the shutter of flue gas outflow, the position being mutually connected between top plate 104 and shutter is additionally provided with deflector, can will be through
Flue gas after filtering is guided at shutter, and the flue gas of all processes can be flowed out by shutter, therefore, it is possible to realize cigarette
Gas is discharged upwards, flue gas is avoided to assemble in roof balcony, it should be pointed out that each side of the housing 105 of the technical program is
Entity platy structure can only carry out upward air draft.
Specifically, shutter can be an integral molding structure with housing 105, or what is be fixedly connected is detachably connected
Structure；When shutter and housing 105 are an integral molding structure, mainly it is molded by integrated die-casting, therefore produce upper
Outlet air is kept off the rain cap structure comparatively robust, and block piece is avoided to be detached from housing 105.
Specifically, the connection mode of top plate 104 and housing 105 can be that top plate 104 is screwed in housing 105
Side, or other connection modes, meanwhile, the connection mode between top plate 104 and shutter can be fixed for screw,
It can be the mode that other are bonded；As long as it can make to connect between top plate 104 and housing 105 and shutter, and can be with
Shi Genghuan or dismounting top plate 104, therefore do not illustrating one by one here.
The alternative of the present embodiment is, as shown in figure 3, deflector is angular structure.
The alternative of the present embodiment is, as shown in Fig. 2, deflector is arranged on the surrounding of top plate 104, two be oppositely arranged
A deflector forms the obtuse angle structure opened to the inside of housing 105.
It should be pointed out that the setting of deflector can avoid the problem that intermediate air-flow smooth cannot be flowed out by shutter,
The windage that middle air flow is subjected to can effectively be reduced.
The alternative of the present embodiment is that deflector is welded to connect with top plate 104.
The alternative of the present embodiment is that the bottom of housing 105 is provided with flange arrangement, and flange arrangement is to housing 105
Internal stretch and it is used to form fan outlet 205.
The alternative of the present embodiment is that the shape of flange arrangement is L-shaped.
The alternative of the present embodiment is that shutter is connected by multiple spacing with blades and set, between adjacent two blades
Spacing distance be 8mm-12mm；
It should be pointed out that the preferred embodiment of the present embodiment is, the spacing distance between adjacent two blades is 10mm.
The alternative of the present embodiment is that by bending angle, the angular range at bending angle is for setting on the blade of shutter
20 ° -30 °.
It should be pointed out that the preferred embodiment of the present embodiment is, the angle at the bending angle of the blade of shutter is 25 °.
The upper outlet air of the present embodiment keep off the rain blast cap rain-proof requirement by shutter, deflector and fan outlet 205 method
Blue structure realizes that shutter is that 25 ° of blinds equidistantly arranges by being spaced 10mm, blinds bending angle jointly；In wind
104 fan outlet of top plate, 205 downside of cap is close to 205 side mounting guiding board of fan outlet；In top air-out fan outlet
The flange arrangement of certain altitude is installed, it can be achieved that IPX3 rain-proof class requirements at 205；It is further noted that public cigarette
Road soot gas is exported from ventilation blower and is discharged, and is kept off the rain blast cap into upper outlet air, and keep off the rain blast cap all round closure, therefore, oil smoke is from keeping off the rain
The function that oil smoke is discharged upwards is realized in shutter discharge at the top of blast cap；So as to which shadow of the oil smoke to roof balcony be greatly reduced
It rings.
As shown in Figure 1, the top plate 104 of the present embodiment is located at the top of housing 105, set between top plate 104 and housing 105
There is shutter, be respectively arranged on the first shutter 101 of 104 both sides of top plate and the second shutter 102 and be arranged on top plate
The third shutter 103 of 104 bottoms, the side of the first shutter 101, the second shutter 102 and third shutter 103 respectively with
Top plate 104 is fixedly connected, and the opposite side of three shutters is fixedly connected respectively with housing 105.
As shown in Fig. 2, the second shutter 102 is fixedly installed the first deflector 203 with the position that 104 phase of top plate is connected,
First shutter 101 is fixedly installed the second deflector 204 with the position that 104 phase of top plate is connected, wherein, the first deflector 203
Structure as shown in figure 3, the inclined surface on the inclined surface of the first deflector 203 and the second deflector 204 relative to housing 105
Middle section is symmetrical arranged, also, obtuse angle structure is collectively formed in two inclined surface；The bottom of housing 105 is provided with fan outlet
205, via fan outlet 205 flow into air-flow via above-mentioned the first deflector 203 and the second deflector 204 effect,
Can make along straight line wind direction be oriented to both sides shutter, realize practical application when upward outlet air effect.
Flange arrangement is both provided in the surrounding of fan outlet 205, first flange structure 201, the second method including Fig. 2
Wind turbine outlet air is collectively formed in the third flange arrangement 206 of blue structure 202 and Fig. 4, the 4th flange arrangement 207, four flange arrangements
Mouth 205, and can prevent external wind and rain from flowing into housing 105.
As shown in figure 4, third shutter 103 is additionally provided with third deflector 208 with the position that 104 phase of top plate is connected, the
The angular structure of three deflectors 208 is to the direction bending where shutter.
The alternative of the present embodiment is to surround barrier structure between three deflectors and housing 105；Fan outlet
205 are projected in the inside of above-mentioned barrier structure, that is, the air-flow entered by fan outlet 205 can be led by each deflector
To.
It is kept off the rain blast cap using the upper outlet air of the present embodiment, since the top of housing 105 is provided with top plate 104, so can
Rainwater is avoided to enter blower interior by the fan outlet 205 of wind turbine, also avoids being flowed into inside public chimney flue, and then
It avoids the problem that causing common flue internal water accumulation；Again since the both sides of top plate 104 and bottom are respectively arranged with shutter, flue gas energy
The effect being enough vented upwards by shutter realization, avoids the flue gas of roof balcony from assembling；Fan outlet 205 is for the row of discharge
Exhaust gas inside flue.
Embodiment two
Including flue, wind turbine, wind turbine are provided at the fan outlet 205 of flue for exhaust system provided in this embodiment
Outside be provided with that the above-mentioned upper outlet air of wind turbine is protected to keep off the rain blast cap.
Specifically, wind turbine and upper outlet air are kept off the rain, blast cap is fixedly connected, the connecting portion of blast cap and wind turbine wherein upper outlet air is kept off the rain
Position is at fan outlet 205.
Preferably, upper outlet air is kept off the rain there are mainly two types of blast cap and the modes being fixedly connected at fan outlet 205：
The first：Upper outlet air keeps off the rain blast cap with being welded at fan outlet 205 in integral structure, can make windscreen
The connection of rain blast cap and wind turbine is more secured.
It should be noted that upper outlet air is kept off the rain, the connection mode of blast cap and wind turbine is not just for welding, or other
Connection mode, if outlet air can be made to keep off the rain being connected firmly between blast cap and wind turbine, therefore here not one at one stroke
Example explanation.
Second：The upper outlet air blast cap that keeps off the rain is screwed at fan outlet 205, i.e., at fan outlet 205
With wind turbine to be detachably connected, when replace with outlet air keep off the rain blast cap when, directly the upper outlet air blast cap that keeps off the rain can be disassembled, having makes
The advantages of with facilitating.
It should be noted that upper outlet air is kept off the rain, the connection mode of blast cap and wind turbine can be that the upper outlet air blast cap that keep off the rain passes through spiral shell
Silk is fixed at fan outlet 205, or other connection modes, as long as can make to connect between top plate 104 and housing 105
Connect securely or, and can replace or dismantle at any time and go up outlet air and keep off the rain blast cap, therefore do not illustrating one by one here.
Using the exhaust system of the present embodiment, including flue, wind turbine, wind turbine are provided at the fan outlet 205 of flue
Outside be provided with that the upper outlet air of above-described embodiment one of wind turbine is protected to keep off the rain blast cap.Due to the exhaust system of the utility model
System includes outlet air and keeps off the rain blast cap, so exhaust system can ensure also to be able to effectively improve while air draft is unobstructed
Outlet air is kept off the rain the ability of keeping off the rain of blast cap；And then it avoids rainwater and public chimney flue is flowed by the fan outlet 205 of wind turbine
Cause the problem of common flue internal water accumulation in inside.
Finally it should be noted that：The above various embodiments is only to illustrate the technical solution of the utility model rather than it is limited
System；Although the utility model is described in detail with reference to foregoing embodiments, those of ordinary skill in the art should
Understand：It can still modify to the technical solution recorded in foregoing embodiments either to which part or whole
Technical characteristic carries out equivalent replacement；And these modifications or replacement, this practicality that it does not separate the essence of the corresponding technical solution are new
The range of each embodiment technical solution of type.
Claims (10)
- The blast cap 1. a kind of upper outlet air is kept off the rain, which is characterized in that including housing, be provided at the top of the housing and consolidate with the housing Surely the blinds for being useful for blocking wind and rain and being flowed out for flue gas is fixedly installed in the top plate connected between the top plate and the housing Window；The shutter is provided with the deflector for adjusting wind direction with the position that the top plate is mutually connected；Fan outlet is provided on the one side opposite with the top plate of the housing.
- The blast cap 2. upper outlet air according to claim 1 is kept off the rain, which is characterized in that the deflector is angular structure.
- The blast cap 3. upper outlet air according to claim 2 is kept off the rain, which is characterized in that the deflector is arranged on the top plate Surrounding, two deflectors being oppositely arranged form the obtuse angle structure opened to the enclosure interior.
- The blast cap 4. upper outlet air according to claim 3 is kept off the rain, which is characterized in that the deflector connects with top plate welding It connects.
- The blast cap 5. upper outlet air according to claim 1 is kept off the rain, which is characterized in that the bottom of the housing is provided with flange knot Structure, the flange arrangement are to extend and be used to form the fan outlet to the enclosure interior.
- The blast cap 6. upper outlet air according to claim 5 is kept off the rain, which is characterized in that the shape of the flange arrangement is L-shaped.
- The blast cap 7. upper outlet air according to claim 1 is kept off the rain, which is characterized in that the shutter is connected by multiple spacing with blades Connect setting, the spacing distance between adjacent two blades is 8mm-12mm.
- The blast cap 8. upper outlet air according to claim 7 is kept off the rain, which is characterized in that setting is by rolling on the blade of the shutter Bent angle, the angular range at the bending angle is 20 ° -30 °.
- 9. a kind of exhaust system, which is characterized in that including flue, wind turbine is provided at the fan outlet of the flue, it is described It is provided with that outlet air is protected in the claims 1-8 any one of them of wind turbine to keep off the rain blast cap on the outside of wind turbine.
- 10. exhaust system according to claim 9, which is characterized in that the wind turbine and the upper outlet air blast cap that keeps off the rain are consolidated Fixed connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721609695.9U CN207484901U (en) | 2017-11-27 | 2017-11-27 | Upper outlet air is kept off the rain blast cap and exhaust system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721609695.9U CN207484901U (en) | 2017-11-27 | 2017-11-27 | Upper outlet air is kept off the rain blast cap and exhaust system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207484901U true CN207484901U (en) | 2018-06-12 |
Family
ID=62472687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721609695.9U Active CN207484901U (en) | 2017-11-27 | 2017-11-27 | Upper outlet air is kept off the rain blast cap and exhaust system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207484901U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114294698A (en) * | 2022-01-29 | 2022-04-08 | 杭州老板电器股份有限公司 | Hood, central oil fume suction system and control method |
-
2017
- 2017-11-27 CN CN201721609695.9U patent/CN207484901U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114294698A (en) * | 2022-01-29 | 2022-04-08 | 杭州老板电器股份有限公司 | Hood, central oil fume suction system and control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20140011440A1 (en) | Vent cover | |
| WO2015070768A1 (en) | Automatic rain-proof ventilator | |
| CN105864990A (en) | Fresh air system and air port structure thereof | |
| CN105737351A (en) | Air outlet grid used for air purifier and air purifier | |
| CN206984290U (en) | A kind of noise reduction ventilator peculiar to vessel | |
| CN207484901U (en) | Upper outlet air is kept off the rain blast cap and exhaust system | |
| CN109323307A (en) | A kind of intelligent assistance house common flue excludes the processor of simultaneously purifying oil fume gas | |
| CN206973756U (en) | Air-ducting ring and air-conditioner outdoor unit | |
| CN107654954A (en) | A kind of optical lighting system for having rain-proof ventilation air channel | |
| CN208923607U (en) | A box-type substation that prevents blockage of heat dissipation ports | |
| CN206903147U (en) | Keep off the rain blast cap and gas extraction system | |
| CN209214060U (en) | Underground garage smoke controlling structure | |
| CN103015599A (en) | Thin roof daylighting ventilator | |
| CN206626682U (en) | Wall-hanging air conditioner all-in-one | |
| CN203113724U (en) | House exhausting passage backward-flow wind prevention cover | |
| CN206468549U (en) | Unpowered roof fan | |
| CN101285486B (en) | Covering and partition type ventilation fan | |
| CN103557574A (en) | Novel ventilation system rain baffle device | |
| CN2441904Y (en) | Automatic ventilation device for house | |
| CN110131830B (en) | Air supply duct system | |
| CN203810431U (en) | Rainproof muffle cowl | |
| CN208687926U (en) | Blast cap outside new blower intake stack room | |
| CN207831577U (en) | A kind of building energy conservation ventilation device | |
| CN206917907U (en) | Keep off the rain blast cap and gas extraction system | |
| CN201232662Y (en) | Covering and isolating ventilation fan |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |