CN204043161U - A kind of stationary blade low windage airduct canopy - Google Patents
A kind of stationary blade low windage airduct canopy Download PDFInfo
- Publication number
- CN204043161U CN204043161U CN201420436247.3U CN201420436247U CN204043161U CN 204043161 U CN204043161 U CN 204043161U CN 201420436247 U CN201420436247 U CN 201420436247U CN 204043161 U CN204043161 U CN 204043161U
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- CN
- China
- Prior art keywords
- blade
- airduct
- canopy
- rain
- stationary blade
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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.)
- Withdrawn - After Issue
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Abstract
A kind of stationary blade of the utility model low windage airduct canopy relates to a kind of rain insensitive device for blocking sleet and other foreign matters for exhaust duct or air inlet.Its objective is that a kind of structure is simple, windage is low, drafting efficiency is high in order to provide, effective stationary blade of keeping off the rain low windage airduct canopy.A kind of stationary blade of the utility model low windage airduct canopy comprises support, the middle part of described support installing inside airduct, above support, top cover is installed, described top cover is evenly provided with several identical blades, described blade by root to outer ledge for being tilted to lower setting, blade rotates inclination certain angle along its symmetry axis simultaneously, and the blade edge of lower side is upwards turned up, form a rhone, adjacent blades is in some overlap of projection of vertical direction, the annular sheet that keeps off the rain is arranged on the outside of blade, and be connected with the outer ledge of each blade respectively.
Description
Technical field
The utility model relates to a kind of rain insensitive device, particularly relates to a kind of stationary blade low windage airduct canopy for blocking sleet and other foreign matters for exhaust duct or air inlet.
Background technology
Current building is carried out except gravity-flow ventilation except relying on door and window, sometimes also needs to carry out Unpowered ventilation at building top by adding ventilation shaft.Due to the resistance ventilated will be reduced, ventilation shaft is generally and arranges straight up, in order to prevent the impurity such as dust, rainwater from entering indoor by ventilation shaft, needing, above ventilation shaft, rain cover is installed, playing simultaneously and preventing dust, rainwater enters indoor effect.The pyramidal structure of existing airduct canopy or directly use umbrella type is covered above ventilation shaft, and this canopy reduces air outlet area, increases the windage of airduct air outlet, and limit the air-out speed of airduct, the efficiency of ventilation is greatly affected; Or by the Electric Machine Control blade rotation of peripheral hardware, open blade when needs ventilate, do not need to ventilate or rainy time closedown blade, this canopy structure relative complex, use cost is higher, and can not ventilate in real time.
Utility model content
The technical problems to be solved in the utility model is to provide that a kind of structure is simple, windage is low, drafting efficiency is high, effective stationary blade of keeping off the rain low windage airduct canopy.
A kind of stationary blade of the utility model low windage airduct canopy, comprise support, the middle part of described support installing inside airduct, above support, top cover is installed, described top cover is evenly provided with the fan-shaped blade that several are identical, described blade by root to outer ledge for being tilted to lower setting, the covering of the fan of blade rotates inclination certain angle along its symmetry axis simultaneously, and the blade edge of lower side is upwards turned up, form a rhone, adjacent blades is in some overlap of projection of vertical direction, the annular sheet that keeps off the rain is arranged on the outside of blade, and be connected with the outer ledge of each blade respectively.
A kind of stationary blade of the utility model low windage airduct canopy, wherein said blade is less than 45 ° along the angle that its symmetry axis rotates.
A kind of stationary blade of the utility model low windage airduct canopy difference from prior art is that a kind of stationary blade of the utility model low windage airduct canopy is provided with some fixing blades on top cover, certain gap is there is between adjacent blades, therefore ensure that airduct can have larger air outlet area, reduce windage, be conducive to the discharge of wind, improve the efficiency of gravity-flow ventilation.Adjacent blades in the vertical direction projection section is overlapping simultaneously, ensure that rainwater and impurity directly can not enter airduct through blade, but can fall on blade, and break away under blade and go, and finally discharge from rhone, therefore stop the effect of rain and the impurity got off from top better.Blade outboard edge is provided with annular and keeps off the rain sheet, can ensure that the rain of coming from the side and impurity are kept off the rain sheet gear outside canopy, can not enter airduct, also can strengthen the stability of blade construction entirety simultaneously.Namely solved the problem of the rainproof and impurity of airduct by fixed blade, need not the drive units such as motor be used, make this device more simple in overall structure, also cheaper on cost.
Below in conjunction with accompanying drawing, a kind of stationary blade of the present utility model low windage airduct canopy is described further.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of stationary blade of the utility model low windage airduct canopy;
Fig. 2 is the top view of a kind of stationary blade of the utility model low windage airduct canopy;
Fig. 3 is the position relationship schematic diagram of a kind of stationary blade of the utility model low windage airduct canopy Leaf and the annular sheet that keeps off the rain.
Detailed description of the invention
As shown in Figure 1, a kind of stationary blade of the utility model low windage airduct canopy comprises support 1, and support 1 is arranged on the middle part inside airduct 4, as depicted in figs. 1 and 2, circular top cover 5 is installed above support 1, top cover 5 is evenly provided with the fan-shaped blade 2 that several are identical.As shown in Figure 1, blade 2 by its root to outer ledge for being tilted to lower setting, simultaneously, as shown in Figure 2, the covering of the fan of blade 2 rotates inclination certain angle along its symmetry axis, and the angle of inclination is less than 45 °, and as shown in Figures 2 and 3, blade 2 edge of lower side is upwards turned up, and forms a rhone 6.Adjacent blades 2, in some overlap of projection of vertical direction, ensures that the side that blade 2 is higher can shelter from the lower side of its adjacent blades 2, and the rain fallen so from below and impurity can not directly enter airduct 4 through blade 2.As shown in figures 1 and 3, the annular sheet 3 that keeps off the rain is arranged on the outside of blade 2, and is connected with the outer ledge of each blade 2 respectively, for stopping that the rain of being come by side and impurity strengthen the stability of blade 2 structure simultaneously.
When the canopy work of a kind of stationary blade of the utility model low windage airduct, the rainwater fallen above airduct 4 and impurity can be fallen blade 2, slide to lower one end, and finally discharge from the rhone 6 of blade 2 from one end that blade 2 is higher; Come from airduct 4 side with impurity then can by annular keep off the rain sheet 3 block.
Above-described embodiment is only be described preferred embodiment of the present utility model; not scope of the present utility model is limited; under the prerequisite not departing from the utility model design spirit; the various distortion that those of ordinary skill in the art make the technical solution of the utility model and improvement, all should fall in protection domain that the utility model claims determine.
Claims (2)
1. a stationary blade low windage airduct canopy, it is characterized in that: comprise support, the middle part of described support installing inside airduct, above support, top cover is installed, described top cover is evenly provided with the fan-shaped blade that several are identical, described blade by root to outer ledge for being tilted to lower setting, the covering of the fan of blade rotates inclination certain angle along its symmetry axis simultaneously, and the blade edge of lower side is upwards turned up, form a rhone, adjacent blades is in some overlap of projection of vertical direction, the annular sheet that keeps off the rain is arranged on the outside of blade, and be connected with the outer ledge of each blade respectively.
2. a kind of stationary blade according to claim 1 low windage airduct canopy, is characterized in that: described blade is less than 45 ° along the angle that its symmetry axis rotates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420436247.3U CN204043161U (en) | 2014-08-04 | 2014-08-04 | A kind of stationary blade low windage airduct canopy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420436247.3U CN204043161U (en) | 2014-08-04 | 2014-08-04 | A kind of stationary blade low windage airduct canopy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204043161U true CN204043161U (en) | 2014-12-24 |
Family
ID=52243817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420436247.3U Withdrawn - After Issue CN204043161U (en) | 2014-08-04 | 2014-08-04 | A kind of stationary blade low windage airduct canopy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204043161U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104180501A (en) * | 2014-08-04 | 2014-12-03 | 北京齐家怡居科技有限责任公司 | Stationary-blade-type low-air-resistance air pipe rain cover |
-
2014
- 2014-08-04 CN CN201420436247.3U patent/CN204043161U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104180501A (en) * | 2014-08-04 | 2014-12-03 | 北京齐家怡居科技有限责任公司 | Stationary-blade-type low-air-resistance air pipe rain cover |
| CN104180501B (en) * | 2014-08-04 | 2017-10-31 | 北京齐家怡居科技有限责任公司 | A kind of low windage airduct canopy of stationary blade |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141224 Effective date of abandoning: 20171031 |
|
| AV01 | Patent right actively abandoned |