CN101949389A - Expansion tray for exhaust fan - Google Patents
Expansion tray for exhaust fan Download PDFInfo
- Publication number
- CN101949389A CN101949389A CN 201010264904 CN201010264904A CN101949389A CN 101949389 A CN101949389 A CN 101949389A CN 201010264904 CN201010264904 CN 201010264904 CN 201010264904 A CN201010264904 A CN 201010264904A CN 101949389 A CN101949389 A CN 101949389A
- Authority
- CN
- China
- Prior art keywords
- expansion tray
- flexible dish
- track
- hood
- air vent
- 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.)
- Granted
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Abstract
The invention relates to an expansion tray for an exhaust fan, which comprises an engine cover, the expansion tray and a driving device. The engine cover is provided with an air vent, a tray body of the expansion tray corresponds to the air vent, the engine cover is provided with a track perpendicular to a vertical face direction, and the expansion tray is correspondingly provided with a sliding rod which is matched with the track; the driving device drives the expansion tray to move back and forth along the track direction, so that the expansion tray covers or opens the air vent; when air is exhausted, the expansion tray is pushed away by the driving device, airflow is exhausted outside the air vent; and when the air does not need to be exhausted, the driving device resets the expansion tray, so that the expansion tray covers the air vent to prevent insects and impurities outside from entering inside from the air vent. The expansion tray for the exhaust fan has the advantages of reasonable product structure, convenient control, and no influence on the working efficiency of the exhaust fan when used; in addition, the expansion tray has a novel design and improves the level of a range hood.
Description
Technical field
The present invention relates to a kind of air interchanger, particularly a kind of flexible dish that is used for induced draft fan.
Background technique
Air-extractor air bells exhauster commonly used, range hood etc., all be to utilize ventilating fan that indoor unclean gas is taken away in use, but because the relief opening communication chamber is inside and outside, range hood is not when working, materials such as outdoor insect, airborne floating debris, rainwater by in the exhaust port inlet chamber, are had the family to bring puzzlement easily.Though being arranged, the part range hood venetian blind has been installed in the outdoor, when induced draft fan is worked, utilize wind-force that venetian blind is pushed open, when induced draft fan stops, utilize self gravitation to reset and close, close exhaust port, but the design of this venetian blind need utilize wind-force to promote just can open, reduced the efficient of induced draft fan, in addition, the as easy as rolling off a log phase opening and closing function that influences when venetian blind has greasy dirt is safeguarded also inconvenient.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of rational in infrastructure, convenient, high, both artistic and practical flexible dish that is used for induced draft fan of reliability of control.
The technical solution adopted in the present invention is:
The flexible dish that is used for induced draft fan, comprise hood, flexible dish and drive unit, hood is provided with ventilated port, the disk body of flexible dish is corresponding to ventilated port, hood is provided with track on perpendicular to its facade direction, the corresponding slide bar that matches with track that is provided with of flexible dish, it is forward and backward mobile that drive unit drives flexible rim orbital direction, makes flexible disk cover live or open ventilated port.
Further improvement of the present invention, drive unit comprise support and rack-mount motor, and support is fixedlyed connected with hood, and the end of machine shaft is equipped with gear, and flexible dish is provided with the straight-tooth piece with gear matched.
Further improvement of the present invention is provided with the limit stoper that retrains the forward and backward displacement distance of this straight-tooth piece between described support and the straight-tooth piece.
Further improvement of the present invention, described track, support and motor all are installed on the back of hood.
The invention has the beneficial effects as follows: when bleeding, utilize drive unit will stretch the dish push open, air-flow is discharged outside ventilated port; When not needing to bleed, drive unit will stretch to coil and reset, flexible dish is covered in ventilated port, prevent outdoor insect foreign material in the ventilated port inlet chamber, product structure is reasonable, and control is convenient, can not influence the working efficiency of induced draft fan in use, in addition, design model novelty of this flexible dish has improved the class of range hood.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the structural representation of flexible dish when not working;
The structural representation that flexible dish stretched out when Fig. 2 was work;
Fig. 3 is another angle structural representation of Fig. 1;
Fig. 4 is another angle structural representation of Fig. 2.
Embodiment
Referring to figs. 1 through shown in Figure 4, the flexible dish that is used for induced draft fan, comprise hood 1, flexible dish 2 and drive unit, hood 1 is provided with ventilated port 11, the disk body 21 of flexible dish 2 is corresponding to ventilated port 11, and hood 1 is provided with track 12 on perpendicular to its facade direction, the flexible dish 2 corresponding slide bars 22 that match with track 12 that are provided with, drive unit drives flexible dish 2 and moves along track 12 directions are forward and backward, makes flexible dish 2 cover or open ventilated port 11.
The present invention both can be applicable to exhaust system, also can be applicable on the range hood, work with range hood is example: when range hood is worked, its induced draft fan need be evacuated to indoor oil smoke outdoor, after induced draft fan is opened, the motor 32 of drive unit also starts, the gear 33 that is installed on the motor shaft rotates, promotion straight-tooth piece 23 and flexible dish 2 move, because the slide bar 22 on the flexible dish 2 also is subjected to the constraint of track 12, the direction of flexible rim track 12 moves forward, and the disk body 21 of flexible dish 2 leaves ventilated port 11, makes indoor oil smoke walk around disk body 21 backs and discharges outdoor from ventilated port 11; When induced draft fan cut out, the flexible dish of motor driving resetted, and the disk body 21 of flexible dish 2 is covered in ventilated port 11.
In order to make control more reasonable, be provided with the limit stoper 4 of these straight-tooth piece 23 forward and backward displacement distances of constraint between support 31 and the straight-tooth piece 23, this limit stoper can be to be installed on the block of support two in order to the forward and backward displacement distance of constraint straight-tooth piece, also can be position limit switch.
In addition, the design's track 12, support 31 and motor 32 all are installed on the back of hood 1, and corresponding, slide bar 22, straight-tooth piece 23 also are located at the back, have guaranteed the handsome in appearance of range hood front side.
The above is the preferred embodiment of the present invention, and it does not constitute limiting the scope of the invention, so long as realize that with essentially identical means purpose of the present invention all should belong to protection scope of the present invention.
Claims (4)
1. the flexible dish that is used for induced draft fan, it is characterized in that: comprise hood (1), flexible dish (2) and drive unit, hood (1) is provided with ventilated port (11), the disk body (21) of flexible dish (2) is corresponding to ventilated port (11), described hood (1) is provided with track (12) on perpendicular to its facade direction, flexible dish (2) corresponding slide bar (22) that matches with track (12) that is provided with, drive unit drives flexible dish (2) and moves along track (12) direction is forward and backward, makes flexible dish (2) cover or open ventilated port (11).
2. the flexible dish that is used for induced draft fan according to claim 1, it is characterized in that: described drive unit comprises support (31) and is installed in motor (32) on the support (31), support (31) is fixedlyed connected with hood (1), the end of motor (32) rotating shaft is equipped with gear (33), and flexible dish (2) is provided with the straight-tooth piece (23) that cooperates with gear (33).
3. the flexible dish that is used for induced draft fan according to claim 2 is characterized in that: the limit stoper (4) that is provided with the forward and backward displacement distance of this straight-tooth piece (23) of constraint between support (31) and the straight-tooth piece (23).
4. require the 2 described flexible dishes that are used for induced draft fan according to wanting sharp, it is characterized in that: described track (12), support (31) and motor (32) all are installed on the back of hood (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102649047A CN101949389B (en) | 2010-08-27 | 2010-08-27 | Expansion tray for exhaust fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102649047A CN101949389B (en) | 2010-08-27 | 2010-08-27 | Expansion tray for exhaust fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101949389A true CN101949389A (en) | 2011-01-19 |
| CN101949389B CN101949389B (en) | 2011-12-14 |
Family
ID=43452991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102649047A Expired - Fee Related CN101949389B (en) | 2010-08-27 | 2010-08-27 | Expansion tray for exhaust fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101949389B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4033891B1 (en) * | 2007-04-18 | 2008-01-16 | 山洋電気株式会社 | Counter-rotating axial fan |
| US20080286117A1 (en) * | 2007-05-17 | 2008-11-20 | Kehrmann Michael F | Pump with automatic deactivation mechanism |
| CN101324238A (en) * | 2007-06-05 | 2008-12-17 | 雷斯梅德有限公司 | Blower with bearing tube |
| CN201787706U (en) * | 2010-08-27 | 2011-04-06 | 梁雪华 | Telescopic plate for exhaust fan |
-
2010
- 2010-08-27 CN CN2010102649047A patent/CN101949389B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4033891B1 (en) * | 2007-04-18 | 2008-01-16 | 山洋電気株式会社 | Counter-rotating axial fan |
| US20080286117A1 (en) * | 2007-05-17 | 2008-11-20 | Kehrmann Michael F | Pump with automatic deactivation mechanism |
| CN101324238A (en) * | 2007-06-05 | 2008-12-17 | 雷斯梅德有限公司 | Blower with bearing tube |
| CN201787706U (en) * | 2010-08-27 | 2011-04-06 | 梁雪华 | Telescopic plate for exhaust fan |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101949389B (en) | 2011-12-14 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111214 Termination date: 20140827 |
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| EXPY | Termination of patent right or utility model |