CN201697261U - Downdraft prevention device used on channel - Google Patents
Downdraft prevention device used on channel Download PDFInfo
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- CN201697261U CN201697261U CN2010203027319U CN201020302731U CN201697261U CN 201697261 U CN201697261 U CN 201697261U CN 2010203027319 U CN2010203027319 U CN 2010203027319U CN 201020302731 U CN201020302731 U CN 201020302731U CN 201697261 U CN201697261 U CN 201697261U
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- housing
- air outlet
- hinge
- passage
- wind apparatus
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Abstract
The utility model provides a downdraft prevention device used on a channel, which belongs to the technical field of downdraft prevention devices used on channels, and solves problems that the opening amplitude of the baffle at the part of the existing pipeline wind outlet is diminished under the influence of external wind, and even the baffle can not rotate. The downdraft prevention device used on the channel is disposed at an outlet of the channel, and comprises a casing with a wind inlet, at least two wind outlets are arranged on the casing, directions of the wind outlets are not identical; and an air door component is arranged at each wind outlet respectively to block the wind outlet and control on and off of the wind outlet by utilizing the pressure difference between the inner side and the outer side of the casing. The downdraft prevention device used on the channel has the advantages of simple use and no need of energy sources. Meanwhile, the utility model can ensure air exhaust in the channel without the influence of wind direction and can prevent wind or rainwater from flowing back to the pipeline.
Description
Technical field
The utility model belongs to mechanical engineering technical field, relates to a kind of air-supply or blower unit, particularly a kind of anti-down wind apparatus that is used on the passage.
Background technology
Air draft in people's daily life and plant produced or discharge flue generally all are equipped with blast cap at channel exit, mainly play effect windproof and that keep off the rain.For example, Chinese patent literature once disclosed the anti-down cigarette cap [China Patent No.: ZL89220307.2 of a kind of chimney; Notification number: CN2077958U], comprise anti-blast cap, sleeve, one end of sleeve is connected with smoke tube mouth, on the nozzle eaves of the sleeve other end, fixing support, the shape of anti-blast cap is the convex-shaped surface of a symmetry, at windproof crown center axis of orientation is housed, axis of orientation and cantilever tip flexibly connect, and the marginal ridge of anti-blast cap and sleeve-port eaves form the passage of an annular.This cigarette cap is umbellate form, in use because the crown umbrella-shaped structure has had a strong impact on the smoothness of exhaust, causes the bad and rainproof poor effect of factory and building interior vented exhaust.
The somebody has proposed the anti-down cigarette down draught device of different schemes, again for example, and the disclosed a kind of anti down flow of smoke device for kitchen use [China Patent No.: ZL00212358.4 of Chinese patent literature; Granted publication number: CN2439636Y], comprise front shroud, baffle plate, many smoke evacuation bar holes are arranged on the anti-down cigarette support body, the two ends of baffle plate are actively socketed on many smoke evacuation cylindrical void demarcation strip two ends of anti-down cigarette support body with support, magnetic patch is separately fixed on the periphery and intermediate section dividing plate of anti-down cigarette support body, anti-down cigarette support body is pressed the top rake direction between forward and backward cover, and is screwed connection along its periphery, forms anti down flow of smoke device for kitchen use.The anti down flow of smoke device of this structure has the effect of closing automatically, though may improve rainproof effect and can prevent that oil smoke from entering the problem in other family kitchens, still exists certain defective.Each regional wind direction all is uncertain, and the pressure that just can cause applied external force to act on the baffle plate when extraneous wind direction is opposite with the baffle plate opening direction increases, cause baffle plate unlatching amplitude to diminish, even the problem that causes baffle plate to rotate, thereby cause factory and building interior vented exhaust bad.
Summary of the invention
The objective of the invention is to have the problems referred to above, proposed a kind ofly can to make that the pipe ventilated air draft is not subjected to that extraneous wind direction influences, rainwater can flow ipe is used for anti-down wind apparatus on the passage at existing technology.
Purpose of the present invention can realize by following technical proposal: a kind of anti-down wind apparatus that is used on the passage, be arranged on the exit of passage, comprise housing with an air inlet, it is characterized in that, at least have two air outlets on the described housing, described air outlet towards incomplete same; Each described air outlet place is provided with respectively can this air outlet of shutoff and can utilize the draught head between the housing inboard and the outside to control the air door assembly that this air outlet is opened and closed.
When the chamber pressure of this anti-down wind apparatus middle shell is lower than ambient pressure, air door assembly shutoff air outlet makes air outlet be in closed condition, has stopped wind or rainwater flow ipe.
When the pipeline exhaust, the pressure of pipeline and housing inner chamber increases, and the housing chamber pressure is higher than ambient pressure, swings to hull outside under the effect of air door component pressure difference, make air outlet be in opening, air outlet open area size is relevant with external and internal pressure difference size.
The wind direction in occurring in nature a certain moment on this device present position is fixed, and air outlet towards inequality, promptly natural wind act on all above-mentioned air door assemblies simultaneously and active force close be non-existent; Thereby it is very little having guaranteed to have at least in above-mentioned all air outlets an air door assembly on the air outlet influenced by natural wind, and this air outlet just can be opened the gas that makes in the pipeline easily and normally discharge from this air outlet.
Pressure in housing descends, and the air door assembly automatically resets under the self gravitation effect from newly closing air outlet.
At the above-mentioned anti-down wind apparatus that is used on the passage, described housing in a tubular form, the upper port place of housing is provided with tapered rainhat, the conical top of rainhat is positioned at outside the housing; The lower port of housing is an air inlet, and above-mentioned air outlet is positioned on the side of housing.The upper port of rainhat shutoff housing and the conical top of rainhat are positioned at outside the housing; Rainhat has been stopped rainwater in housing upper port flow ipe, simultaneously the tapered rain water-harvesting of also having avoided of rainhat.
At the above-mentioned anti-down wind apparatus that is used on the passage, the cross section of described housing is equipped with air outlet for just polygon on each side of described housing.The cross section of housing is positive four limits, be equipped with an air outlet on each side of housing, can get thus air outlet have altogether four and all air outlets towards all inequality and adjacent air outlet towards vertical mutually, be very little thereby further guaranteed to have at least an air door assembly on the air outlet influenced by natural wind.
At the above-mentioned anti-down wind apparatus that is used on the passage, the upper port place of described housing is provided with tapered fair water cone, and the conical top of fair water cone is positioned at housing.Fair water cone can make cigarette or the gas in the pipeline flow to the air outlet place more directly and accurately, can increase the pressure that flow to air outlet place gas simultaneously, just can reduce the inside and outside pressure differential of housing, the easier unlatching of air door assembly at air outlet place.
At the above-mentioned anti-down wind apparatus that is used on the passage, described housing comprises bottom in a tubular form and is the top of triangular column that the upper end of bottom is connected with one of them side at top; The lower port of described bottom is an air inlet, all has air outlet on other two sides at described top.The housing of this shape has good looking appearance, and anti-down draught and rainwater are effective.Also can on two bottom surfaces at top, set out the air port according to actual conditions.
At the above-mentioned anti-down wind apparatus that is used on the passage, described air door assembly comprises that some are evenly distributed on the hinge that the air outlet place is the bar shaped sheet; The long limit of described hinge is perpendicular to the axis of housing tube, and wherein a length of side limit is hinged on the housing and this long limit is positioned at the top on another long limit.Hinge under the self gravitation effect can the nature be resisted against on the housing, make unlatching, the open area size of air outlet in this anti-down wind apparatus and close by the swing of the control of the draught head inside and outside housing hinge and realize, need not artificial control and consumed power, thereby have the advantage of using simple and energy savings.
At the above-mentioned anti-down wind apparatus that is used on the passage, described air door assembly comprises that some are evenly distributed on the hinge that the air outlet place is the bar shaped sheet; The long limit of described hinge be parallel to the axis of housing tube and wherein a length of side limit be hinged on the housing, between every hinge and housing, be equipped with and can make this sheet hinge have the elastic component that is resisted against movement tendency on the housing all the time.Elastic component is a spring, hinge can have movement tendency on the housing of being resisted against all the time under the effect of spring, make unlatching, the open area size of air outlet in this anti-down wind apparatus and close by the swing of the control of the draught head inside and outside housing hinge and realize, need not artificial control and consumed power, thereby have the advantage of using simple and energy savings.
At the above-mentioned anti-down wind apparatus that is used on the passage, be fixed with articulated elements on the described housing, the described long limit of hinge that is hinged with housing is provided with rotating shaft, and rotating shaft penetrates articulated elements.Rotating shaft and articulated elements are set make the hinge rotation more flexible, can make things convenient for installing and fixing and keeping in repair of hinge simultaneously.
Compared with prior art, the anti-down wind apparatus that originally is used on the passage has the advantage of using simply, need not the energy.Simultaneously, can guarantee the passage exhaust not wind-engaging to the influence and can avoid wind or rainwater to flow backward in the pipeline.
Description of drawings
Fig. 1 is the perspective view that originally is used for the anti-down wind apparatus on the passage.
Fig. 2 is the sectional structure schematic diagram that originally is used for the anti-down wind apparatus on the passage.
Fig. 3 is the perspective view that originally is used for the anti-down wind apparatus another program on the passage.
Among the figure, 1, housing; 1a, air outlet; 1b, bottom; 1c, top; 2, rainhat; 3, fair water cone; 4, hinge; 5, rotating shaft; 6, articulated elements.
The specific embodiment
Below be specific embodiments of the invention and in conjunction with the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiment.
As depicted in figs. 1 and 2, this anti-down wind apparatus is arranged on the exit of passage, and this device is generally vertical setting.It comprises housing 1, the air door assembly with an air inlet and at least two air outlet 1a.
Specifically, housing 1 in a tubular form, the lower port of housing 1 is that air inlet and air inlet can be connected with the outlet of passage, the lower port place of housing 1 has and makes things convenient for housing 1 to be fixed on fixing hole on pipeline or the building.
The cross section of housing 1 is to be equipped with an air outlet 1a on each side of square and housing 1, can get thus air outlet 1a have altogether four and all air outlet 1a towards all inequality.Being provided with respectively at each air outlet 1a place can shutoff this air outlet 1a and can utilize the draught head between housing 1 inboard and the outside to control the air door assembly that this air outlet 1a opens and closes.
The rainhat 2 that the upper port place of housing 1 is fixed with, the upper port of rainhat 2 shutoff housings 1 and the conical top 1c of rainhat 2 are positioned at outside the housing 1; Rainhat 2 has been stopped rainwater in housing 1 upper port flow ipe, simultaneously the rainhat 2 tapered rain water-harvestings of also having avoided.Extend on the base of rainhat 2 makes the base be positioned at the outside of housing 1, and promptly the bottom surface of rainhat 2 is greater than the upper surface of housing 1, thereby effectively avoids rainwater to blow back in the pipeline from air outlet 1a.
Upper port place at housing 1 is provided with tapered fair water cone 3, the conical top 1c of fair water cone 3 is positioned at housing 1, thereby can make cigarette or gas in the pipeline flow to air outlet 1a place more directly and accurately, simultaneously can increase the pressure that flow to air outlet 1a place gas, just can reduce the inside and outside pressure differential of housing 1, the easier unlatching of air door assembly at air outlet 1a place.
The air door assembly comprises the some hinges 4 that are the bar shaped sheet, and hinge 4 long limits are perpendicular to the axis of housing 1 tube.Wherein a length of side limit is hinged on (promptly this long limit is hinged limit) on the housing 1, and hinge 4 can be along the swing of hinged limit, and then another long limit is a free margins, and hinge 4 hinged limits are positioned at the top of free margins.
Hinge 4 is evenly distributed on air outlet 1a place from top to bottom along air outlet 1a, and the hinged limit portion and the last eaves portion of the air outlet 1a on the housing 1 that are positioned at the top hinge 4 are overlapping.Hinge 4 is under the self gravitation effect, and the free margins portion of below hinge 4 of being positioned at is resisted against on the air outlet 1a lower entablature on the housing 1; The free margins that is positioned at top hinge 4 is resisted against on the lateral surface on the handing-over limit that is positioned at below hinge 4.Can get thus, the air door assembly covers between the adjacent hinge 4 in whole air outlet 1a and the air door assembly also has overlapping portion, thereby improved the sealing between air door assembly and the housing 1 greatly and improved the sealing of air door assembly self, prevented that effectively rainwater from flowing in the housing 1.
In order to make hinge 4 swings more flexible, be fixed with articulated elements 6 at housing 1, on the hinged limit of hinge 4, be provided with rotating shaft 5, the two ends that the axis of rotating shaft 5 is parallel to hinged limit and rotating shaft 5 pass hinge 4 and penetrate above-mentioned articulated elements 6, and rotating shaft 5 and articulated elements 6 are rotationally connected.
When this anti-down wind apparatus is installed on exhaust outlet place in the dust pelletizing system, and when the blower fan in the dust pelletizing system is not worked, the chamber pressure of anti-down wind apparatus middle shell 1 is lower than ambient pressure, each sheet hinge 4 in the air door assembly all is resisted against on the housing 1, air outlet 1a is in closed condition, thereby has stopped wind or rainwater flow ipe.
When dust pelletizing system is worked, blower fan is sent into indoor air in the pipeline, then the pressure of pipeline and housing 1 inner chamber increases, and housing 1 chamber pressure is higher than ambient pressure, hinge 4 side oscillation outside housing 1 under above-mentioned pressure differential effect, air outlet 1a is opened automatically, and the size of above-mentioned hinge 4 pendulum angles is relevant with external and internal pressure difference size.
The wind direction in occurring in nature a certain moment on this device present position is fixed, promptly natural wind act on all above-mentioned air door assemblies simultaneously and active force close be non-existent; Thereby it is very little having guaranteed to have at least among above-mentioned four air outlet 1a an air door assembly on the air outlet 1a influenced by natural wind, and this air outlet 1a just can open the gas that makes in the pipeline easily and normally discharge from this air outlet 1a.
After quitting work, the pressure in the housing 1 descends, and hinge 4 is automatically reseting under the self gravitation effect to being resisted against on the housing 1.
The unlatching of air outlet 1a in this anti-down wind apparatus, open area size and close by housing 1 inside and outside draught head control hinge 4 swings and realize need not artificial control and consumed power, thereby have the advantage of using simple and energy savings.
Embodiment two
As shown in Figure 3, present embodiment is basic identical with structure and the principle of embodiment one, and different place is: housing 1 comprises bottom 1b in a tubular form and is the top 1c of triangular column that the upper end of bottom 1b is connected with one of them side of top 1c; The lower port of bottom 1b is an air inlet, and top 1c all has air outlet 1a on all the other two sides.
In addition, can on two bottom surfaces of top 1c, also have air outlet 1a according to actual conditions.
Embodiment three
Present embodiment is basic identical with structure and the principle of embodiment one or embodiment two, and different place is: the air door assembly comprises that some are evenly distributed on the hinge 4 that air outlet 1a place is the bar shaped sheet; The long limits of hinge 4 be parallel to the axis of housing 1 tube and wherein a length of side limit be hinged on (promptly this limit is hinged limit) on the housing 1, another long limit is a free margins.Between every hinge 4 and housing 1, be equipped with and make this sheet hinge 4 have the spring that is resisted against movement tendency on the housing 1 all the time.Hinge 4 free margins on same air outlet 1a towards identical, if housing 1 in a tubular form and by rounded or housing 1 is spherical in shape, then the air outlet 1a that is had on the housing 1 equates with the quantity of hinge 4.
After the blower fan in the dust pelletizing system quit work, the pressure in the housing 1 descended, and hinge 4 is resisted against on the housing 1 being reset under the effect of spring.
Specific embodiment described herein only is that the present invention's spirit is illustrated.The technical staff of the technical field of the invention can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although this paper has used housing 1 morely; Air outlet 1a; Bottom 1b; Top 1c; Rainhat 2; Fair water cone 3; Hinge 4; Rotating shaft 5; Articulated elements 6 terms such as grade, but do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present invention more easily; They are construed to any additional restriction all is contrary with spirit of the present invention.
Claims (9)
1. anti-down wind apparatus that is used on the passage, be arranged on the exit of passage, comprise housing (1), it is characterized in that with an air inlet, at least have two air outlets (1a) on the described housing (1), described air outlet (1a) towards incomplete same; Each described air outlet (1a) is located to be provided with respectively can this air outlet of shutoff (1a) and can utilize the draught head between housing (1) inboard and the outside to control the air door assembly that this air outlet (1a) is opened and closed.
2. the anti-down wind apparatus that is used on the passage according to claim 1 is characterized in that, described housing (1) in a tubular form, the upper port place of housing (1) is provided with tapered rainhat (2), the conical top (1c) of rainhat (2) is positioned at outside the housing (1); The lower port of housing (1) is an air inlet, and above-mentioned air outlet (1a) is positioned on the side of housing (1).
3. the anti-down wind apparatus that is used on the passage according to claim 2 is characterized in that, the cross section of described housing (1) is equipped with air outlet (1a) for just polygon on each side of described housing (1).
4. according to claim 2 or the 3 described anti-down wind apparatus that are used on the passage, it is characterized in that the upper port place of described housing (1) is provided with tapered fair water cone (3), the conical top (1c) of fair water cone (3) is positioned at housing (1).
5. the anti-down wind apparatus that is used on the passage according to claim 1, it is characterized in that, described housing (1) comprises bottom (1b) in a tubular form and is the top (1c) of triangular column that the upper end of bottom (1b) is connected with one of them side of top (1c); The lower port of described bottom (1b) is an air inlet, and described top (1c) all has air outlet (1a) on two sides in addition.
6. according to claim 1 or 2 or the 3 or 5 described anti-down wind apparatus that are used on the passage, it is characterized in that described air door assembly comprises that some are evenly distributed on the hinge (4) that air outlet (1a) locates to be the bar shaped sheet; The long limit of described hinge (4) is perpendicular to the axis of housing (1) tube, and wherein a length of side limit is hinged on that housing (1) is gone up and this long limit is positioned at the top on another long limit.
7. according to claim 1 or 2 or the 3 or 5 described anti-down wind apparatus that are used on the passage, it is characterized in that described air door assembly comprises that some are evenly distributed on the hinge (4) that air outlet (1a) locates to be the bar shaped sheet; The long limit of described hinge (4) be parallel to the axis of housing (1) tube and wherein a length of side limit be hinged on the housing (1), between every hinge (4) and housing (1), be equipped with the elastic component that this sheet hinge (4) is had all the time be resisted against movement tendency on the housing (1).
8. the anti-down wind apparatus that is used on the passage according to claim 6, it is characterized in that, be fixed with articulated elements (6) on the described housing (1), the described long limit of hinge (4) that is hinged with housing (1) is provided with rotating shaft (5), and rotating shaft (5) penetrates articulated elements (6).
9. the anti-down wind apparatus that is used on the passage according to claim 7, it is characterized in that, be fixed with articulated elements (6) on the described housing (1), the described long limit of hinge (4) that is hinged with housing (1) is provided with rotating shaft (5), and rotating shaft (5) penetrates articulated elements (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010203027319U CN201697261U (en) | 2010-02-09 | 2010-02-09 | Downdraft prevention device used on channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010203027319U CN201697261U (en) | 2010-02-09 | 2010-02-09 | Downdraft prevention device used on channel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201697261U true CN201697261U (en) | 2011-01-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010203027319U Expired - Fee Related CN201697261U (en) | 2010-02-09 | 2010-02-09 | Downdraft prevention device used on channel |
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| Country | Link |
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| CN (1) | CN201697261U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972787A (en) * | 2016-06-15 | 2016-09-28 | 珠海格力电器股份有限公司 | Air port and ventilation system using the same |
| CN110280184A (en) * | 2019-06-04 | 2019-09-27 | 上海境业环保能源科技股份有限公司 | A kind of blowing-suction combined type forced ventilation high-tower granulation device |
| CN113566345A (en) * | 2021-09-26 | 2021-10-29 | 南通虹光风机制造有限公司 | Supercharging energy-saving type centrifugal ventilator flow guide device |
-
2010
- 2010-02-09 CN CN2010203027319U patent/CN201697261U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972787A (en) * | 2016-06-15 | 2016-09-28 | 珠海格力电器股份有限公司 | Air port and ventilation system using the same |
| CN105972787B (en) * | 2016-06-15 | 2018-12-18 | 珠海格力电器股份有限公司 | A kind of air port and the air exchange system using the air port |
| CN110280184A (en) * | 2019-06-04 | 2019-09-27 | 上海境业环保能源科技股份有限公司 | A kind of blowing-suction combined type forced ventilation high-tower granulation device |
| CN113566345A (en) * | 2021-09-26 | 2021-10-29 | 南通虹光风机制造有限公司 | Supercharging energy-saving type centrifugal ventilator flow guide device |
| CN113566345B (en) * | 2021-09-26 | 2021-12-28 | 南通虹光风机制造有限公司 | Supercharging energy-saving type centrifugal ventilator flow guide device |
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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: 20110105 Termination date: 20160209 |