CN203784386U - Boosting check valve for extractor hood - Google Patents
Boosting check valve for extractor hood Download PDFInfo
- Publication number
- CN203784386U CN203784386U CN201420143194.6U CN201420143194U CN203784386U CN 203784386 U CN203784386 U CN 203784386U CN 201420143194 U CN201420143194 U CN 201420143194U CN 203784386 U CN203784386 U CN 203784386U
- Authority
- CN
- China
- Prior art keywords
- valve body
- valve
- check valve
- booster fan
- valve gap
- 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.)
- Expired - Lifetime
Links
- 239000000779 smoke Substances 0.000 description 9
- 239000003517 fume Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000013475 authorization Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
Abstract
The utility model discloses a boosting check valve for an extractor hood. The boosting check valve for the extractor hood comprises a valve body, wherein an air inlet and an air outlet are formed in the two ends of the valve body, a valve cover is mounted on the air outlet of the valve body, and the boosting check valve is characterized in that a booster fan used for opening the valve cover is mounted on the air inlet of the valve body. Compared with the prior art, the boosting check valve has the advantages that the boosting check valve for the extractor hood is provided with the booster fan on the air inlet of the valve body, the booster fan and a fan of the extractor hood work in a matched manner, the wind pressure in an air outlet pipe is remarkably increased so as to be good for opening the valve cover, and in addition, the booster fan and the valve cover are respectively located on the air inlet and the air outlet of the valve body, the wind pressure produced by the booster fan is not weakened by the air outlet pipe of the extractor hood, so that the power of the chosen booster fan is not too high, so as to be good for reducing the product cost.
Description
Technical field
The utility model relates to a kind of check valve, especially relates to a kind of boosting type check valve used for range hood.
Background technique
At present, many range hoods are all discharged fume by common duct, in order to prevent that the oil smoke in common duct from pouring in down a chimney the air outlet tube that enters range hood, at the bending tubes end of common duct, check valve are generally all installed.When range hood work, under the effect of cooking-fume exhauster blower blast, check valve is opened, and oil smoke enters common duct smoothly by air outlet tube, and when range hood quits work, check valve cuts out to prevent that in common duct, oil smoke pours in down a chimney.If the patent No. is that ZL02282449.9(notice of authorization number is CN2575455Y) Chinese utility model patent disclosed " kitchen, toilet from oil extraction dirt, exempt to unpick and wash check valve " a kind of be the check valve of similar said structure.
But,, common duct higher for the floor more situation of turning round, the duct pressure loss of range hood is serious, and range hood does not often reach normal smoke discharging effect, common duct oil smoke even can occur and pour in down a chimney the phenomenon of being stained with by grease with the valve gap of check valve and do not open.For above-mentioned defect, current common corrective measure is, realize the normal smoke evacuation of range hood by improving range hood blast, but, this corrective measure needs obviously to increase the power of blower fan, and not only noise strengthens, and cost also significantly rises, moreover, the blast increasing because of power of fan still cannot avoid before arriving common duct by air outlet tube loss to some extent.
Model utility content
Technical problem to be solved in the utility model is for above-mentioned prior art present situation, and a kind of boosting type check valve used for range hood that can significantly increase blast in range hood air outlet tube under prerequisite is cheaply provided.
The utility model solves the problems of the technologies described above adopted technological scheme: this boosting type check valve used for range hood, comprise valve body, the two ends of described valve body have intake grill and exhaust outlet, exhaust outlet at described valve body is provided with valve gap, it is characterized in that: at the intake grill of described valve body, the booster fan for opening described valve gap is installed.
For the valve gap to after closing carries out spacingly, the top of described valve gap is rotatably connected on the inwall top of described exhaust outlet, is provided with the valve gap of downward upset is carried out to spacing limited step in the inwall bottom of described exhaust outlet.
Valve body and valve gap can have various structures, and preferably, described valve body entirety is cylindric, accordingly, described valve gap is circular seal lid, described valve gap in off position under, the base abuts of valve gap on described limited step and valve bonnet seal residence state the exhaust outlet of valve body.
As above-mentioned arbitrary scheme preferably, described booster fan is arranged on the intake grill inside of described valve body, and the just exhaust outlet to described valve body of the fan outlet of this booster fan.Like this, the blast that booster fan produces can easily be opened valve gap.
Compared with prior art, the utility model has the advantage of: this boosting type check valve used for range hood is provided with booster fan by the intake grill at valve body, booster fan and cooking-fume exhauster blower cooperating, can significantly increase the blast in air outlet tube, thereby being beneficial to valve gap opens, and, because booster fan and valve gap lay respectively at intake grill and the exhaust outlet of valve body, the blast that booster fan produces can be through the loss of range hood air outlet tube, thereby the power of the booster fan of selecting do not need too large, thereby be conducive to reduce product cost.
Brief description of the drawings
Fig. 1 is the utility model embodiment's plan view;
Fig. 2 is the utility model embodiment's sectional view;
Fig. 3 is the utility model embodiment's plan view;
Fig. 4 is the utility model embodiment's mounting structure schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.
As shown in Figure 1 to Figure 3, boosting type check valve used for range hood in the present embodiment includes entirety and is valve body 1 cylindraceous, the two ends of valve body 1 have intake grill 11 and exhaust outlet 12, the exhaust outlet 12 of valve body 1 is provided with valve gap 2, the intake grill 11 of valve body 1 is provided with booster fan 3, particularly, booster fan 3 is arranged on intake grill 11 inside of valve body, and the just exhaust outlet 12 to valve body 1 of the fan outlet 31 of this booster fan 3.
Valve gap 2 and valve body 1 are for being rotationally connected, particularly, the top of valve gap 2 is connected to the inwall top of exhaust outlet 12 rotationally, is provided with limited step 13 in the inwall bottom of exhaust outlet 12, in valve gap 2 closing process, valve gap 2 upset downwards is also carried out spacing by limited step 13 to valve gap 2.In the present embodiment, corresponding with valve body 1, valve gap 2 is circular seal lid, and valve gap 2 in off position under, the base abuts of valve gap 2 on limited step 13 and valve gap 2 seal up the exhaust outlet 12 of valve body 1.
As shown in Figure 4, this boosting type check valve used for range hood is arranged between the air outlet tube 5 and common duct 6 of range hood 4.After booster fan 3 starts, can significantly increase the blast in air outlet tube 5, be pressed in the loss in air outlet tube 5 thereby made up well range hood air.When range hood 4 is worked, under the acting in conjunction of cooking-fume exhauster blower and booster fan 3, valve gap 2 is opened, and oil smoke enters common duct 6 smoothly by air outlet tube 5, and direction shown in arrow is smoke evacuation direction; When range hood 4 quits work, blast in air outlet tube 5 disappears, and the exhaust outlet 12 of valve body is closed and sealed up to valve gap 2, enters in air outlet tube 5 thereby stop oil smoke in common duct 6 to pour in down a chimney.
Claims (4)
1. a boosting type check valve used for range hood, comprise valve body (1), the two ends of described valve body (1) have intake grill (11) and exhaust outlet (12), exhaust outlet (12) at described valve body is provided with valve gap (2), it is characterized in that: at the intake grill (11) of described valve body, the booster fan (3) for opening described valve gap (2) is installed.
2. boosting type check valve used for range hood according to claim 1, it is characterized in that: the top of described valve gap (2) is rotatably connected on the inwall top of described exhaust outlet (12), the valve gap (2) being provided with downward upset in the inwall bottom of described exhaust outlet (12) carries out spacing limited step (13).
3. boosting type check valve used for range hood according to claim 2, it is characterized in that: described valve body (1) entirety is cylindric, accordingly, described valve gap (2) is circular seal lid, described valve gap (2) in off position under, at described limited step (13), upper and valve gap (2) seals up the exhaust outlet (12) of described valve body to the base abuts of valve gap (2).
4. according to the boosting type check valve used for range hood described in claim 1 or 2 or 3, it is characterized in that: described booster fan (3) is arranged on intake grill (11) inside of described valve body, and the just exhaust outlet to described valve body (12) of the fan outlet (31) of this booster fan (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420143194.6U CN203784386U (en) | 2014-03-27 | 2014-03-27 | Boosting check valve for extractor hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420143194.6U CN203784386U (en) | 2014-03-27 | 2014-03-27 | Boosting check valve for extractor hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203784386U true CN203784386U (en) | 2014-08-20 |
Family
ID=51320574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420143194.6U Expired - Lifetime CN203784386U (en) | 2014-03-27 | 2014-03-27 | Boosting check valve for extractor hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203784386U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105066209A (en) * | 2015-08-17 | 2015-11-18 | 广东美的厨房电器制造有限公司 | Hood system and control method thereof |
-
2014
- 2014-03-27 CN CN201420143194.6U patent/CN203784386U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105066209A (en) * | 2015-08-17 | 2015-11-18 | 广东美的厨房电器制造有限公司 | Hood system and control method thereof |
| CN105066209B (en) * | 2015-08-17 | 2017-06-20 | 广东美的厨房电器制造有限公司 | Cigarette machine system and its control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140820 |
|
| CX01 | Expiry of patent term |