CN202612732U - Check valve - Google Patents
Check valve Download PDFInfo
- Publication number
- CN202612732U CN202612732U CN 201220015315 CN201220015315U CN202612732U CN 202612732 U CN202612732 U CN 202612732U CN 201220015315 CN201220015315 CN 201220015315 CN 201220015315 U CN201220015315 U CN 201220015315U CN 202612732 U CN202612732 U CN 202612732U
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- CN
- China
- Prior art keywords
- air door
- check valve
- exhaust duct
- magnetic block
- gas exhaust
- 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 - Fee Related
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Abstract
The utility model discloses a check valve, which comprises an exhaust pipeline, wherein a rotatable air door is arranged on an air outlet of the exhaust pipeline, and the air door or the exhaust pipeline is provided with at least a magnetic block. The check valve solves the phenomenon that lampblack or harmful gas flows back to a residential house, to be precise, the air door can be automatically pushed open when lampblack gas in a flue achieves certain air pressure, the lampblack and the harmful gas are removed, the air valve is automatically closed when the lampblack or the harmful gas do not exist, and the air door can not be pushed open by too small pressure.
Description
Technical field
The utility model relates to a kind of check valve.
Background technique
At present; The building design of residential quarter; Normally will put in order the cooking-fume discharging passway, top-down floor kitchen, each unit in building, building, and be set as a public flue and concentrate outwards discharging oil smoke, lampblack exhauster pipeline that the resident of every floor respectively will be separately and the public flue in its kitchen join.
Through this design, receive the restriction of building structure, the long-pending design of public flue lateral cross section can not be excessive; And the cross-section of pipeline of each household resident's lampblack exhauster is long-pending bigger; People in the kitchen cooking dish food open lampblack exhauster, make its pipeline through public flue discharging oil smoke when outdoor, often some oil smoke is trapped in the pipeline; And through oil-smoke expulsion pipe and public flue joint in every floor kitchen; Anti-channeling is not opened lampblack exhauster in the kitchen of the relevant floor of common conduit cooking-fume discharging to this moment, and unpleasant oil smoke, harmful gas (carbon monoxide) pollute the hygienic conditions in resident's chamber.
Therefore, the someone has invented a joint, is the check valve of a kind of range hood of CN201875214U like the Chinese patent publication number, comprises blocking blade, and said blocking blade is movably connected in the exhaust outlet place of oil absorption machine body, and said blocking blade is provided with more than 2 or 2.Can automatic closure completely cut off public flue through this structure exhaust outlet blocking blade when not having oil smoke, eliminate environmental pollution resident's indoor air through the soot gas that the lampblack exhauster pipeline flows backwards.But in the public road of story height cigarette, influence, can form the negative pressure band because of flue air heat rises; Detailed says; The air pressure of oil smoke can be greater than the air pressure in the common conduit in the flue tube, and air door can be open, and causes oil smoke or smell still can anti-channeling to arrive in the resident room.
Summary of the invention
Deficiency to existing technology; The utility model provides a kind of check valve, this device solves oil smoke or the harmful gas phenomenon in the resident room that flows backwards, say accurately; When reaching certain air pressure, can automatically air door be pushed open the soot gas in the flue; Get rid of oil smoke and harmful gas, air door is not closed automatically when having oil smoke or harmful gas, and the oil smoke in the public flue can't be pushed air door open.
For solving technique scheme, the utility model provides following technical proposals to be able to solve.
A kind of check valve comprises gas exhaust duct, and the exhaust outlet of said gas exhaust duct is provided with rotating air door, and said air door or said gas exhaust duct are provided with at least one magnetic block.
In the technique scheme, said magnetic block is arranged on the exhaust outlet place of said gas exhaust duct.
In the technique scheme, the exhaust outlet place of said gas exhaust duct is provided with supporting frame, and said air door is movably arranged on the support frame as described above.
In the technique scheme, said air door is formed by 2.
In the technique scheme, the week that said magnetic block is evenly distributed on said gas exhaust duct makes progress.
In the technique scheme, said magnetic block is arranged on the both sides of said air door.
Compare with existing technology, the beneficial effect of the utility model is described below.
1, through on air door or gas exhaust duct, magnetic block being set, prevent that the oil smoke in the public flue from blowing air door open, oil smoke or harmful gas anti-channeling are in the resident room.
2, since air door form by some, oil smoke or harmful gas can be evenly and through air door the time resistance less, discharge comparatively smooth and easy.
3, structural design is comparatively simple, and it is also comparatively convenient to install.
Description of drawings
Fig. 1 is the structural representation of a kind of check valve of the utility model.
Fig. 2 is the sectional view of a kind of check valve of the utility model.
Embodiment
Below in conjunction with description of drawings a kind of check valve of the utility model is done further explain.
Referring to Fig. 1 ~ Fig. 2, a kind of check valve comprises gas exhaust duct 1; The exhaust outlet of said gas exhaust duct 1 is provided with rotating air door 2, and said air door 2 is formed by some, because air door 2 is formed by some; Oil smoke or harmful gas can be evenly and through air door 2 time resistance less; Discharge comparatively smooth and easyly, the exhaust outlet place of said gas exhaust duct 1 is provided with supporting frame 4, and said air door 2 is movably arranged on the support frame as described above 4.Said air door 2 is processed by thin iron plate, adopt this material to make air door not yielding, and weight is lighter; Resistance is less when oil smoke or harmful gas contact, and said air door 2 is formed by 2, certainly according to actual needs; Can air door 2 perhaps be formed more than 2 by 2; As long as it is less at resistance when the air door 2 to be implemented in oil smoke or harmful gas, discharge comparatively smooth and easy, can be with reference to use.
As preferably, said magnetic block 3 is arranged on the exhaust outlet place of said gas exhaust duct 1, if magnetic block 1 is arranged on the air door 2; In long-term using process, magnetic block 3 comes off easily, and people can not in time find; Cause disabler; Therefore, magnetic block 3 is set, can prevents that in long-term using process the phenomenon that magnetic block 3 comes off from taking place at the exhaust outlet place of gas exhaust duct 1.
Concrete working principle is described below; Under not having the less situation of gas or gas atmosphere in the gas exhaust duct 1, air door 2 and gas exhaust duct 1 place's closed state, the gas atmosphere in gas exhaust duct 1 is increased to a certain degree; Gas can be pushed air door 2 open; Be discharged to the external world, waiting to discharge when a certain amount of (air pressure hour) air door 2 again can be automatically and gas exhaust duct 1 closure, so just prevents effectively that the interior gas anti-channeling of public flue from arriving in the resident room.
As preferably; The week that said magnetic block 3 is evenly distributed on said gas exhaust duct 1 makes progress; Wherein 2 magnetic block 3 distributed and arranged make air door 2 just be adhered on the magnetic block 3, in addition in the both sides of supporting frame 4; Right opposite at supporting frame 4 also is provided with a magnetic block 3, makes air door 2 just be adhered on the magnetic block 3.
Claims (6)
1. a check valve comprises gas exhaust duct (1), and the exhaust outlet of said gas exhaust duct (1) is provided with rotating air door (2), it is characterized in that, said air door (2) or said gas exhaust duct (1) are provided with at least one magnetic block (3).
2. a kind of check valve according to claim 1 is characterized in that, said magnetic block (3) is arranged on the exhaust outlet place of said gas exhaust duct (1).
3. a kind of check valve according to claim 1 is characterized in that, the exhaust outlet place of said gas exhaust duct (1) is provided with supporting frame (4), and said air door (2) is movably arranged on the support frame as described above (4).
4. a kind of check valve according to claim 3 is characterized in that, said air door (2) is formed by 2.
5. a kind of check valve according to claim 1 is characterized in that, the week that said magnetic block (3) is evenly distributed on said gas exhaust duct (1) makes progress.
6. a kind of check valve according to claim 5 is characterized in that, said magnetic block (3) is arranged on the both sides of said air door (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220015315 CN202612732U (en) | 2012-01-13 | 2012-01-13 | Check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220015315 CN202612732U (en) | 2012-01-13 | 2012-01-13 | Check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202612732U true CN202612732U (en) | 2012-12-19 |
Family
ID=47346433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220015315 Expired - Fee Related CN202612732U (en) | 2012-01-13 | 2012-01-13 | Check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202612732U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103123136A (en) * | 2013-03-07 | 2013-05-29 | 王惠蕾 | Kitchen lampblack discharge system |
| CN109828546A (en) * | 2019-03-25 | 2019-05-31 | 王建疆 | A kind of building integrated control method, apparatus and system |
-
2012
- 2012-01-13 CN CN 201220015315 patent/CN202612732U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103123136A (en) * | 2013-03-07 | 2013-05-29 | 王惠蕾 | Kitchen lampblack discharge system |
| CN109828546A (en) * | 2019-03-25 | 2019-05-31 | 王建疆 | A kind of building integrated control method, apparatus and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180420 Address after: 315040 105, 104 Lane 625 lane, Min An Road, Jiangdong District, Ningbo, Zhejiang. Patentee after: Xu Qiang Address before: 315040 Zhejiang Ningbo hi tech Zone 96 B Factory Road, hibiscus Road Patentee before: Neuvo Electrical Appliance Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180725 Address after: 315800 Room 201, Chuang Chuang Road, bonded West District, Ningbo, Zhejiang, 201 Patentee after: Zhejiang heele intelligent Kitchen Appliance Co., Ltd. Address before: 315040 105, 104 Lane 625 lane, Min An Road, Jiangdong District, Ningbo, Zhejiang. Patentee before: Xu Qiang |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121219 Termination date: 20200113 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |