CN206468549U - Unpowered roof fan - Google Patents
Unpowered roof fan Download PDFInfo
- Publication number
- CN206468549U CN206468549U CN201621138899.4U CN201621138899U CN206468549U CN 206468549 U CN206468549 U CN 206468549U CN 201621138899 U CN201621138899 U CN 201621138899U CN 206468549 U CN206468549 U CN 206468549U
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- China
- Prior art keywords
- air
- air duct
- blast cap
- flabellum
- mouth mask
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- 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.)
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Abstract
The utility model discloses a kind of Unpowered roof fan, including air duct；Rotation blast cap is provided with above the air duct, the rotary shaft and the rotary shaft of air duct of the rotation blast cap are concentric, if the dry plate flabellum of rotation blast cap is uniformly distributed along the circumference, the angle of the rotary shaft of the flabellum length direction and air duct is between 0 to 10 spends；The radial direction fixture of flabellum extension direction and circumferential spread is again between 65 degree to 80 degree.The utility model Unpowered roof fan sets rotation blast cap in the top of air duct by the way that the axial flow fan blade in air duct is replaced by, and rotates blast cap using natural wind wind blows outside greenhouse, adds the power of rotation, effectively improve and change wind efficiency.By the way that air-out mouth mask is set into two panels deep bead, it is to avoid when opening air-out mouth mask, the interference between rotation blast cap and air-out mouth mask so that air-out mouth mask can be opened completely.
Description
Technical field
The utility model is related to a kind of warmhouse booth air interchanger, specially a kind of Unpowered roof fan.
Background technology
Warmhouse booth is widely used in agricultural production.Need to discharge by taking a breath to greenhouse ventilation in production process
Unnecessary heat, suppresses high temperature, supplements CO2With reduction indoor air humidity.
Using motor air draft not only consumption electric power, and because motor exhaust equipment needs wiring, install inconvenient.Cause
This, would generally select Unpowered roof fan being arranged on top of greenhouse, realize the technical scheme of air draft dehumidifying at present.Such as：In
State's patent 201020171412.9 discloses a kind of axial-flow roof ventilator.The technical scheme not only reduces the weight of blower fan,
So that the Corrosion Protection of blower fan is improved, and it is easy for installation, it is widely applied.
Utility model content
According to the result run for many years, inventor thinks that above-mentioned patented product is still not fully up to expectations, is left to be desired.In this base
On plinth, a kind of structure novel and unique is inventors herein proposed, the Unpowered roof fan for changing wind efficiency can be effectively improved；Specific skill
Art scheme is：
Unpowered roof fan, including air duct；Characterized in that, being provided with rotation blast cap, air duct above the air duct
Air-out mouth mask is inside provided with, the air-out mouth mask is arranged in the air duct.
Further, the radial direction angle of flabellum extended planar and circumferential spread is between 65 degree to 80 degree.
Further, the rotary shaft and the rotary shaft of air duct of the rotation blast cap are concentric, if the dry plate flabellum edge of rotation blast cap
The angle of the rotary shaft of circumference uniform distribution, the flabellum length direction and rotation blast cap is between 0 to 10 spends；The top of the flabellum
Slope inwardly, the surfaces of revolution that rotation is formed is the small conical surface in top.
Further, the flabellum is plane or cambered surface.
Further, the air-out mouth mask is two panels；The two panels deep bead passes through gemel connection.
Further, the air-out mouth mask is arranged on top in the air duct.
Further, the air-out mouth mask is made up of transparent plastic.
Further, the air duct is made up of transparent plastic.
Further, the flabellum is made up of transparent plastic.
The utility model Unpowered roof fan is by the way that the axial flow fan blade in air duct is replaced by the top of air duct
Rotation blast cap is set, blast cap is rotated using natural wind wind blows outside greenhouse, adds the power of rotation, effectively improve and change wind
Efficiency.By the way that air-out mouth mask is set into two panels deep bead, it is to avoid when opening air-out mouth mask, between rotation blast cap and air-out mouth mask
Interference so that air-out mouth mask can be opened completely.
Brief description of the drawings
Fig. 1 is the utility model Unpowered roof fan structural representation；
Fig. 2 is the semi-cutaway of the utility model Unpowered roof fan structural representation.
In figure：1st, air duct；1-1, cylinder；1-2, fixed ear；2nd, blast cap is rotated；2-1, flabellum；2-2, connect base；2-
3rd, blast cap top；2-4, bearing；2-5, rotary shaft；3rd, air-out mouth mask；3-1, deep bead；3-2, drawstring.
Embodiment
The utility model is more fully illustrated below with embodiment.The utility model can be presented as it is a variety of not
Same form, is not construed as the exemplary embodiment for being confined to describe here.
For ease of explanation, space relative terms such as " on ", " under " " left side " " right sides " can be used herein, for saying
The element or feature shown in bright figure is relative to another element or the relation of feature.It should be understood that except in figure
Outside the orientation shown, spatial terminology is intended to include the different azimuth of device in use or operation.If for example, in figure
Device is squeezed, be stated as being located at other elements or feature " under " element will be located into other elements or feature " on ".Cause
This, exemplary term " under " both upper and lower orientation can be included.Device can be positioned otherwise（It is rotated by 90 ° or is located at
Other orientation）, can correspondingly be explained used herein of the relative explanation in space.
As shown in figure 1, the Unpowered roof fan in the present embodiment, bottom is air duct 1, the top of air duct 1 is provided with rotation
Turn blast cap 2, the rotary shaft for rotating the rotary shaft 2-5 and air duct 1 of blast cap 2 is concentric, rotate multiple flabellum 2-1 of blast cap 2 circumferentially
Uniformly；Flabellum 2-1 quantity can be 20 or 24, or 30.
When having wind outside greenhouse, wind blows rotation blast cap 2 rotates, and flabellum 2-1 is oblique to the generation inside rotation blast cap 2
The thrust of top, jacking force is identical with hot inside air ascending air direction, improves ventilation effect.Certainly, rotation blast cap 2 may be used also
To select the surfaces of revolution as the shape such as the frustum of a cone or cylinder, or top surface and bottom surface are plane, and periphery is the drum type round platform of sphere.
Flabellum 2-1 extended planar and the radial direction angle of circumferential spread are preferably disposed between 65 degree to 80 degree；In wind-force
Blow down, obtain higher rotating speed, further improve the efficiency that air is extracted from air duct 1.
The rotary shaft 2-5 of flabellum 2-1 length directions and rotation blast cap 2 angle is between 0 to 10 spends；And flabellum 2-1
Top slopes inwardly, and the surfaces of revolution that rotation is formed is the top small conical surface or sphere.
Flabellum 2-1 can be plane, can also be cambered surface as shown in Figure 2.When flabellum 2-1 is plane, extended planar with
In-plane is consistent；When flabellum 2-1 is cambered surface, extended planar refers to 2, base summit and the top margin plane that summit is formed in the inner part.
In order to close air outlet when that need not take a breath, air-out mouth mask 3 can be set in air duct 1.Certainly, air-out
The shape of mouth mask 3 should be matched with air duct 1, can be blocked the air outlet of air duct 1, and can switch.Air-out mouth mask 3 should
Using plastic material, preferably transparent plastic material.Transparent plastic material not only lighter in weight, translucency is good, it is to avoid influence
Indoor illumination.3 points of air-out mouth mask in embodiment is two panels, is semicircle, passes through gemel connection.Torsion spring is configured at hinge
（Not shown in figure）, two panels baffle plate aerofoil 3-1 is resetted, air outlet is closed.
Drawstring 3-2 is installed in the end away from hinge, by pulling downward on drawstring 3-2, overcomes the elastic force of torsion spring, opens out
Air port cover 3, is taken a breath.Air-out mouth mask 3 can be arranged on bottom in air duct 1.Air-out mouth mask 3 is arranged on top in air duct 1；
When rainwater leaks into from the flabellum 2-1 gaps of rotation blast cap 2, it can be flowed out from top, it is to avoid ponding, leakage are formed in air duct 1
Enter in greenhouse.
The top of rotation blast cap 2 is provided with the blast cap top 2-3 of closing, it is to avoid rainwater enters inside rotation blast cap 2 from top.
The rotary shaft 2-5 upper and lower ends of rotation blast cap 2 are fixed on blast cap top 2-3 center and connect base 2-2 by bearing 2-4 respectively
Center.
The cylinder 1-1 of air duct 1 is centrum, and top dimension is less than bottom size.Cylinder 1-1 bottom is provided with fixed ear 1-
2；Fixed ear 1-2 is erected on the steel pipe of bracket, Unpowered roof fan is arranged on to the top in greenhouse.
Flabellum 2-1, cylinder 1-1 and deep bead 3-1 should use plastic material, preferably transparent plastic material.It is transparent
Plastic material not only lighter in weight, is conducive to being equipped with larger flabellum, improves draught capacity；Moreover, transparent material is as far as possible
The barrier to light is reduced, is conducive to greenhouse to make full use of illuminance and temperature in sunlight, increase greenhouse.Especially needing
Ventilating opening it is more when, effect becomes apparent from.
In use, a smaller circular hole is opened in the top film in greenhouse, by Unpowered roof fan from below by circle
Hole is ejected, and circular hole diameter is between cylinder 1-1 top dimensions and bottom size.Because cylinder 1-1 is centrum, film lock ring is in nothing
Correct position on the cylinder of power roof ventilator.The fixation ear 1-2 of Unpowered roof fan is ridden on steel pipe and fixed.
If hard ceiling, ceiling need to be outputed to the circular hole with conical tube mates, by Unpowered roof fan
Stretched out from below by circular hole, the mounting ear of Unpowered roof fan is ridden on steel pipe and fixed, hard ceiling and circle is carried out
The sealing of conical shell.Then blast cap 2 will be rotated to be mounted on the cylinder 1-1 of cone.
Opened when needing using drawstring 3-2, indoor and outdoor carries out air exchange.When not needing, deep bead 3-1 blocks air port,
Indoor and outdoor is without air exchange.
Unpowered roof fan is mounted on plastic greenhouse or the top in other greenhouses, for air exchange, exchanges effect
Rate is higher.
Unpowered roof fan has used more transparent material, and sunshade area is small, small to the illumination effect in greenhouse.
Above-mentioned example is only intended to illustrate the utility model, in addition, also a variety of different embodiments, and these
Embodiment be all those skilled in the art after comprehension the utility model thought it is also envisioned that therefore, no longer arrange one by one herein
Lift.
Claims (8)
1. Unpowered roof fan, including air duct；Characterized in that, rotation blast cap is provided with above the air duct, the rotation
The rotary shaft and the rotary shaft of the air duct for turning blast cap are concentric, if the dry plate flabellum of rotation blast cap is uniformly distributed along the circumference, the flabellum
The angle of the rotary shaft of length direction and rotation blast cap is between 0 to 10 spends；The top of the flabellum slopes inwardly, and rotation is formed
The surfaces of revolution be to be provided with air-out mouth mask in the small circular conical surface in top, air duct, the air-out mouth mask is arranged in the air duct.
2. Unpowered roof fan as claimed in claim 1, it is characterised in that flabellum extended planar and the radial direction of circumferential spread
Angle is between 65 degree to 80 degree.
3. the Unpowered roof fan as described in claim 1 or claim 2, it is characterised in that the flabellum be plane or
Cambered surface.
4. Unpowered roof fan as claimed in claim 1, it is characterised in that the air-out mouth mask includes two panels deep bead；
The two panels deep bead passes through gemel connection.
5. Unpowered roof fan as claimed in claim 1, it is characterised in that the air-out mouth mask is arranged in the air duct
Top.
6. Unpowered roof fan as claimed in claim 1, it is characterised in that the air-out mouth mask is made up of transparent plastic.
7. Unpowered roof fan as claimed in claim 1, it is characterised in that the air duct is made up of transparent plastic.
8. the Unpowered roof fan as described in claim 1 or claim 2, it is characterised in that the flabellum is by transparent modeling
Material is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621138899.4U CN206468549U (en) | 2016-10-20 | 2016-10-20 | Unpowered roof fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621138899.4U CN206468549U (en) | 2016-10-20 | 2016-10-20 | Unpowered roof fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206468549U true CN206468549U (en) | 2017-09-05 |
Family
ID=59710462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621138899.4U Active CN206468549U (en) | 2016-10-20 | 2016-10-20 | Unpowered roof fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206468549U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591093A (en) * | 2018-05-07 | 2018-09-28 | 桑泽曼（上海）机电设备有限公司 | Agricultural cooling bug blower |
| CN109163226A (en) * | 2018-07-20 | 2019-01-08 | 江苏省专利信息服务中心(江苏省知识产权维权援助中心) | A kind of LED matrix with self-cleaning function |
-
2016
- 2016-10-20 CN CN201621138899.4U patent/CN206468549U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591093A (en) * | 2018-05-07 | 2018-09-28 | 桑泽曼（上海）机电设备有限公司 | Agricultural cooling bug blower |
| CN109163226A (en) * | 2018-07-20 | 2019-01-08 | 江苏省专利信息服务中心(江苏省知识产权维权援助中心) | A kind of LED matrix with self-cleaning function |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |