CN2758569Y - Check valve for smoke exhausting duct of residence - Google Patents
Check valve for smoke exhausting duct of residence Download PDFInfo
- Publication number
- CN2758569Y CN2758569Y CN 200420114832 CN200420114832U CN2758569Y CN 2758569 Y CN2758569 Y CN 2758569Y CN 200420114832 CN200420114832 CN 200420114832 CN 200420114832 U CN200420114832 U CN 200420114832U CN 2758569 Y CN2758569 Y CN 2758569Y
- Authority
- CN
- China
- Prior art keywords
- valve
- valve block
- cooking fume
- valve body
- valve blade
- 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
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Abstract
The utility model discloses a check valve for a fume exhausting duct of a residence, which comprises a valve body and a valve blade, wherein a cooking fume duct is arranged in the valve body, both ends of the cooking fume duct are respectively an air inlet and an air outlet, and the valve blade can be connected with the end of the air outlet of the valve body in a rotary mode through a rotary shaft at the upper end of the valve blade. The utility model is characterized in that at least the lower part of the end of the air outlet of the valve body extends from the position in which the valve blade is in a closed state to forward to form an extended section, and the position in the air outlet, which corresponds to the position in which the valve blade is in a closed state forms a limiting convex rib. When a cooking fume exhauster works, the cooking fume which is exhausted from the cooking fume exhauster can open the valve blade from the inner side to be exhausted smoothly. When the cooking fume exhauster does not work, the valve blade is closed automatically. Because the valve blade is positioned in the inner end of the valve body, the valve blade can not be opened by the cooking fume or the strong wind of the outside, and the sealing property is better because the valve blade is tightly pressed by the pressure of the cooking fume or the strong wind. Thereby, the utility model effectively solves the problem that the householders use the common flue to exhaust the cooking fume to make the odor and the cooking fume mix together.
Description
Technical field
The utility model relates to a kind of being used for from the kitchen toward the unidirectional check valve in residence discharge road of residence discharge road discharging flue gas.
Background technique
Present multilayer, high residential building all use shared air outlet flue to concentrate and discharge flue gas.The oil smoke gas that produces when cooking is cooked enters the main pipe of common flue by range hood with oil smoke gas, concentrates from the outlet port on layer top and discharges.Because the range hood outlet valve of domestic production at present is poorly sealed, the oil smoke gas that makes resident family of lower floor can enter in the upper strata resident family room from the relief opening of upper strata resident family range hood in discharge process; When blowing hard or air pressure when low, oil smoke gas that upper strata resident family discharges also can occur and enter in resident family of the lower floor room from the relief opening of resident family of lower floor range hood, produce between the air outlet flue collaborate mutually, smoke blowing.Had a strong impact on the living environment of each layer resident family.The way that various solution common flues stop flue gases to flow backwards is being sought always by Quan Guo range hood producer for many years, but on the market various unidirectional venting gas appliance all can not address this problem well at present.It such as the patent No. 01108254.6 Chinese patent disclosed " check valve for flue ", comprise shell, be arranged at the oil smoke passage in the shell, the two end part of described oil smoke passage have intake grill, exhaust outlet respectively, valve block is arranged at the oral area of described exhaust outlet, and described valve block and described shell are rotatably connected by the valve block rotating shaft; It is characterized in that: haply perpendicular to horizontal plane, the shaft axis of described valve block rotating shaft and horizontal plane intersect under second working position on the plane at described valve block place, and the shaft axis of described valve block rotating shaft departs from the center of gravity of described valve block.This patented technology reaches on the market, and a common defects of similar products is: because of its valve block covers the exhaust outlet oral area outside, even thereby the range hood corresponding with valve block is in non-working condition, valve block also may be opened because of the upward flow in the common flue, cause collaborating, smoke blowing, be difficult to reach gratifying effect.
Summary of the invention
Technical problem to be solved in the utility model is the unidirectional check valve in exploitation a kind of residence discharge road, in resident family during without range hood oil extraction flue gas, that is to say when range hood is not worked, it is indoor to guarantee that oil smoke gas that this resident family discharges does not enter other resident family, thereby guarantees not collaborate mutually between the air outlet flue, smoke blowing.
The utility model solves the problems of the technologies described above the technological scheme that is adopted: this unidirectional check valve in residence discharge road, comprise valve body and valve block, be provided with the oil smoke passage in the valve body, the two ends of oil smoke passage are respectively intake grill and exhaust outlet, described valve block is rotatably connected to the air opening end of valve body by the rotating shaft of valve block upper end, the air opening end that it is characterized in that described valve body has extended the extension forward in present position when described valve block is in closed condition, its underpart at least, and the present position formed retaining convex rib when corresponding described valve block was in closed condition in the described exhaust outlet.The cross section of described exhaust outlet can be circular, ellipse garden shape, also can be square etc., but is good with circle.As for described extension, its circumferential lengths only need be enough to guarantee that described valve block is unlikely to because of oil smoke gas or strong wind in the common flue valve block to be opened gets final product.In conjunction with actual conditions, the Lower Half setting of corresponding described valve block is answered in the extension, and its circumferential lengths is to be advisable greater than 1/2nd of described exhaust outlet circumferential lengths.
The plane at place was the inclined-plane when described valve block was in closed condition, and the angle of this inclined-plane and horizontal plane is 60～75 degree, so that valve block can well seal exhaust outlet under its action of gravity, was unlikely to cause simultaneously too big windage again.
The outside of described convex tendon is provided with seal ring, and described valve block can fit with the sealing circle and seal when being in closed condition.
The bottom of described valve block is provided with balancing weight, to guarantee the timely falling of valve block.
Compared with prior art, advantage of the present utility model is: when kitchen ventilator is worked, can wash valve block open from the inboard and discharge swimmingly by the oil smoke gas that range hood is discharged; And when kitchen ventilator was not worked, valve block was closed automatically, and since valve block in the inner end of valve body, the oil smoke gas or the strong wind of outside can not be opened valve block, valve block is compressed by the pressure of oil smoke gas or strong wind and make sealability better.Thereby can produce following useful social effect:
1. efficiently solve multilayer, high residential building resident family because of the concentrated exhaust of use common flue is collaborated mutually, the problem of smoke blowing.
2. improved the living environment of multilayer, high-rise resident family.
3. advantages such as structure is novel reasonable, in light weight, and is easy for installation.
Description of drawings
Fig. 1 is the utility model embodiment's a structural representation.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
As schematically shown in Figure 1, be a preferred embodiment of the present utility model.As Fig. 1, the unidirectional check valve in present embodiment residence discharge road comprises valve body 1 and valve block 4, be provided with the rounded oil smoke passage of cross section in the valve body 1, the two ends of oil smoke passage are respectively intake grill and exhaust outlet, valve block 4 is rotatably connected to the air opening end of valve body 1 by the rotating shaft of valve block upper end, the present position had extended extension 5 forward when the air opening end of valve body 1 was in closed condition from valve block 4, and corresponding valve block 4 forms a circle retaining convex rib 6 in the present position when being in closed condition in the exhaust outlet.The circumferential lengths of this extension 5 is greater than 1/2nd of the exhaust outlet circumferential lengths, and the Lower Half of having surrounded valve block 4 fully.The plane at place was the inclined-plane when described valve block 4 was in closed condition, the angle α of this inclined-plane and horizontal plane is 60～75 degree, the outside of convex tendon 6 is provided with seal ring 2, form good sealing so that valve block 4 can be fitted with seal ring 2 because of valve block 4 when being in closed condition to exhaust outlet.The bottom of described valve block 4 is provided with balancing weight 3, to guarantee that valve block 4 in time falls after rise.
Claims (5)
1, the unidirectional check valve in a kind of residence discharge road, comprise valve body and valve block, be provided with the oil smoke passage in the valve body, the two ends of oil smoke passage are respectively intake grill and exhaust outlet, described valve block is rotatably connected to the air opening end of valve body by the rotating shaft of valve block upper end, the air opening end that it is characterized in that described valve body has extended the extension forward in present position when described valve block is in closed condition, its underpart at least, and the present position formed retaining convex rib when corresponding described valve block was in closed condition in the described exhaust outlet.
2, the unidirectional check valve in residence discharge road according to claim 1, the circumferential lengths that it is characterized in that described extension is greater than 1/2nd of described exhaust outlet circumferential lengths.
3, the unidirectional check valve in residence discharge road according to claim 1 and 2 is characterized in that the plane at place was the inclined-plane when described valve block was in closed condition, and the angle of this inclined-plane and horizontal plane is 60～75 degree.
4, the unidirectional check valve in residence discharge road according to claim 1 and 2 is characterized in that the outside of described convex tendon is provided with seal ring, and described valve block can fit with the sealing circle and seal when being in closed condition.
5, the unidirectional check valve in residence discharge road according to claim 1 and 2 is characterized in that the bottom of described valve block is provided with balancing weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420114832 CN2758569Y (en) | 2004-12-24 | 2004-12-24 | Check valve for smoke exhausting duct of residence |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420114832 CN2758569Y (en) | 2004-12-24 | 2004-12-24 | Check valve for smoke exhausting duct of residence |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2758569Y true CN2758569Y (en) | 2006-02-15 |
Family
ID=36078711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420114832 Expired - Lifetime CN2758569Y (en) | 2004-12-24 | 2004-12-24 | Check valve for smoke exhausting duct of residence |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2758569Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102498321A (en) * | 2009-07-29 | 2012-06-13 | 波勒维克有限公司 | Non-return valve |
| CN102563159A (en) * | 2010-12-30 | 2012-07-11 | 北大方正集团有限公司 | Flow control device, coke-oven dust removing system and control method for flow of flowable substance |
| CN103123136A (en) * | 2013-03-07 | 2013-05-29 | 王惠蕾 | Kitchen lampblack discharge system |
-
2004
- 2004-12-24 CN CN 200420114832 patent/CN2758569Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102498321A (en) * | 2009-07-29 | 2012-06-13 | 波勒维克有限公司 | Non-return valve |
| CN102498321B (en) * | 2009-07-29 | 2013-11-06 | 波勒维克有限公司 | Non-return valve |
| CN102563159A (en) * | 2010-12-30 | 2012-07-11 | 北大方正集团有限公司 | Flow control device, coke-oven dust removing system and control method for flow of flowable substance |
| CN103123136A (en) * | 2013-03-07 | 2013-05-29 | 王惠蕾 | Kitchen lampblack discharge system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20141224 Granted publication date: 20060215 |