CN201250501Y - Reverse filling protection hood of exhausting and ventilating channel used in building - Google Patents
Reverse filling protection hood of exhausting and ventilating channel used in building Download PDFInfo
- Publication number
- CN201250501Y CN201250501Y CNU2008201310791U CN200820131079U CN201250501Y CN 201250501 Y CN201250501 Y CN 201250501Y CN U2008201310791 U CNU2008201310791 U CN U2008201310791U CN 200820131079 U CN200820131079 U CN 200820131079U CN 201250501 Y CN201250501 Y CN 201250501Y
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- Prior art keywords
- top cover
- supporting plate
- baffle
- building
- periphery
- Prior art date
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- Expired - Fee Related
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- 238000009423 ventilation Methods 0.000 claims description 13
- 238000005452 bending Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The utility model discloses a reverse filling protection hood of an exhausting and ventilating channel used in a building. A supporting plate encircling the exit of the exhausting and ventilating channel is provided with an upright supporting pole; a top cover fixed on the supporting pole is arranged above the exit of the exhausting and ventilating channel; a horizontal air current channel is formed between the top cover and the supporting plate; a reverse filling protection guiding body is arranged in the horizontal air current channel; and the area encircled by the periphery of the top cover is larger than the area encircled by the periphery of the supporting plate. Because the area encircled by the periphery of the top cover is larger than the area encircled by the periphery of the supporting plate, strong wind or heave rain and snow can not enter the exhausting and ventilating channel together with the air current.
Description
Technical field
The utility model belongs to a kind of ventilating and exhausting device, specifically relates to a kind of blast cap that is used for building vented exhaust passage air outlet.
Background technology
Air outlet position in the building vented exhaust channel roof, usually the preventing air reverse flow cap to be installed, its structure mainly is: on the supporting plate around the ventilation stack outlet, be provided with the support column that erects, above the ventilation stack outlet, be provided with the top cover that is fixed on the support column, form the horizontal gas flow passage between top cover and the supporting plate, be provided with the anti-baffle that pours in down a chimney in the horizontal gas flow passage.The weak point of this structure is: owing to all be open around the horizontal gas flow passage between top cover and the supporting plate, strong wind or sleet can be with the air-flow admission passages.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of preventing air reverse flow cap that prevents the building vented exhaust passage that strong wind or sleet enter.
The technical scheme that addresses the above problem is: the preventing air reverse flow cap of this building vented exhaust passage, on supporting plate around the ventilation stack outlet, be provided with the support column that erects, above the ventilation stack outlet, be provided with the top cover that is fixed on the support column, form the horizontal gas flow passage between top cover and the supporting plate, be provided with the anti-baffle that pours in down a chimney in the horizontal gas flow passage, the area that the area that the periphery of top cover surrounds surrounds greater than the periphery of supporting plate.
The area that the periphery of the utility model top cover surrounds is greater than the area that the periphery of supporting plate surrounds, and makes strong wind or the sleet can be with the air-flow admission passage.
Description of drawings
Fig. 1 is the structural representation of embodiment of the present utility model.
Specific embodiments
This routine ventilation stack cross section is square, on supporting plate 2 around ventilation stack outlet 1, be provided with the support column 4 that erects, above ventilation stack outlet 1, be provided with the top cover 5 that is fixed on the support column 4, form horizontal gas flow passage 8 between top cover 5 and the supporting plate 2, be provided with the anti-baffle that pours in down a chimney in the horizontal gas flow passage, the area that the area that the periphery of top cover 5 surrounds surrounds greater than the periphery of supporting plate 2.
Describedly anti-pour in down a chimney the baffle structure and be: ventilation stack exports 1 edge and exceeds supporting plate, be provided with high, the low following baffle 3 all around in middle part around the level of ventilation stack outlet 1 to supporting plate 2, described top cover lower wall surface is provided with the last baffle 6 of centre to lower convexity, forms from the middle part the most described horizontal gas flow passage 8 of narrow radiate out between last baffle 6 and the following baffle 3.
Preferably, described upward baffle 6 is cone or part orbicule, and described baffle 3 down is prismatoid or part orbicule.
Preferably, high in the middle of being provided with above the described top cover 5, low on every side top cover convex surface 7 (also with the bending side of rib), its effect is that rainwater can flow down along it, not ponding.
Preferably, described top cover 5 and supporting plate 2 peripheries are bending one angle downwards, is beneficial to rainwater and flows down.
Further, between top cover 5 and supporting plate 2, be provided with the shutter 9 that horizontal gas flow passage 8 is trapped among the inside, shutter is made up of to blade some oblique levels that space out, are parallel to each other, adjust the angle of blade and can adjust the resistance that shutter forms air-flow, the blade of described shutter can be a fixed structure, also can be the structure that is through adjustable angle on the oblique axostylus axostyle.Certainly, shutter can also vertically be made up of to blade to the level that spaces out, is parallel to each other some, adjust the angle of blade and can adjust the resistance that shutter forms air-flow, the blade of described shutter can be a fixed structure, also can be to be through the vertically structure of adjustable angle on axostylus axostyle.The shutter that is provided with on blast cap can play the effect that prevents that foreign matter from entering, and can play the effect of attractive, decorative.
The above; it only is preferred embodiment of the present utility model; be not that the utility model is done any pro forma restriction; every foundation technical spirit of the present utility model all still belongs to the protection domain of technical solutions of the utility model to any simple modification, equivalent variations and modification that above embodiment did.
Claims (6)
1, a kind of preventing air reverse flow cap of building vented exhaust passage, on supporting plate (2) around ventilation stack outlet (1), be provided with the support column (4) that erects, be provided with the top cover (5) that is fixed on the support column (4) in ventilation stack outlet (1) top, form horizontal gas flow passage (8) between top cover (5) and the supporting plate (2), be provided with in the horizontal gas flow passage and anti-pour in down a chimney baffle (6,3), it is characterized in that: the area that the area that the periphery of top cover (5) surrounds surrounds greater than the periphery of supporting plate (2).
2, the preventing air reverse flow cap of building vented exhaust passage according to claim 1, it is characterized in that, describedly anti-pour in down a chimney the baffle structure and be: ventilation stack outlet (1) edge exceeds supporting plate, be provided with high, the low following baffle (3) all around in middle part around the level of ventilation stack outlet (1) to supporting plate (2), described top cover lower wall surface is provided with the last baffle (6) of centre to lower convexity, forms from the middle part the most described horizontal gas flow passage (8) of narrow radiate out between last baffle (6) and the following baffle (3).
3, the preventing air reverse flow cap of building vented exhaust passage according to claim 2 is characterized in that, described upward baffle (6) is cone or part orbicule, and described baffle (3) down is prismatoid or part orbicule.
4, according to the preventing air reverse flow cap of claim 1,2 or 3 described building vented exhaust passages, it is characterized in that, high in the middle of being provided with above the described top cover (5), low on every side top cover convex surface (7).
5, the preventing air reverse flow cap of building vented exhaust passage according to claim 1 is characterized in that, described top cover (5) and supporting plate (2) periphery be bending one angle downwards.
6, the preventing air reverse flow cap of building vented exhaust passage according to claim 1 is characterized in that, is provided with shutter (9) between top cover (5) and supporting plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201310791U CN201250501Y (en) | 2008-09-02 | 2008-09-02 | Reverse filling protection hood of exhausting and ventilating channel used in building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201310791U CN201250501Y (en) | 2008-09-02 | 2008-09-02 | Reverse filling protection hood of exhausting and ventilating channel used in building |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201250501Y true CN201250501Y (en) | 2009-06-03 |
Family
ID=40746174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201310791U Expired - Fee Related CN201250501Y (en) | 2008-09-02 | 2008-09-02 | Reverse filling protection hood of exhausting and ventilating channel used in building |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201250501Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107489260A (en) * | 2017-08-29 | 2017-12-19 | 滨州职业学院 | A kind of skyscraper is windproof, the artistic ventilation duct tube head of ventilation |
| CN107560131A (en) * | 2017-08-09 | 2018-01-09 | 世源科技工程有限公司 | A kind of blast cap and ventilating system |
| CN108590108A (en) * | 2018-03-27 | 2018-09-28 | 重庆大学 | Natural draught system device under Venturi effect invigoration effect |
-
2008
- 2008-09-02 CN CNU2008201310791U patent/CN201250501Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107560131A (en) * | 2017-08-09 | 2018-01-09 | 世源科技工程有限公司 | A kind of blast cap and ventilating system |
| CN107560131B (en) * | 2017-08-09 | 2020-04-17 | 世源科技工程有限公司 | Hood and ventilation system |
| CN107489260A (en) * | 2017-08-29 | 2017-12-19 | 滨州职业学院 | A kind of skyscraper is windproof, the artistic ventilation duct tube head of ventilation |
| CN108590108A (en) * | 2018-03-27 | 2018-09-28 | 重庆大学 | Natural draught system device under Venturi effect invigoration effect |
| CN108590108B (en) * | 2018-03-27 | 2019-11-26 | 重庆大学 | Natural draught system device under Venturi effect invigoration effect |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090603 Termination date: 20170902 |