CN2784697Y - Check valve for smoke exhaust ventilator - Google Patents
Check valve for smoke exhaust ventilator Download PDFInfo
- Publication number
- CN2784697Y CN2784697Y CN 200520089461 CN200520089461U CN2784697Y CN 2784697 Y CN2784697 Y CN 2784697Y CN 200520089461 CN200520089461 CN 200520089461 CN 200520089461 U CN200520089461 U CN 200520089461U CN 2784697 Y CN2784697 Y CN 2784697Y
- Authority
- CN
- China
- Prior art keywords
- blade
- valve body
- check valve
- smoke exhaust
- exhaust ventilator
- 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 for a smoke exhaust ventilator, which is provided with a valve body (1) and a blade (2) movably connected to the valve body (1), wherein a ring wing (3) connected with the valve body (1) is arranged below the blade (2) which is made of an aluminium plate, and the thickness of the blade (2) is 0.2-1.2 mm. The utility model can make the blade blown up by a smoke airflow as well as overcome the defect that a plastic rubber blade has easy deformation, and solves the problem that the plastic rubber blade is deformed to result in bad sealing effect between the blade and the ring wing, therefore the check valve for a smoke exhaust ventilator truly plays an action of preventing the airflow from reversely injecting and ensures that air is discharged in time without returning so as to keep indoor air fresh.
Description
Technical field:
The utility model relates to a kind of range hood safety check, the range hood safety check that not yielding, the windproof stability of especially a kind of blade is good.
Background technique:
Existing range hood is typically equipped with the safety check that prevents that gas from flowing backwards, and its structure is to be provided with valve body and to be movably connected in blade in the valve body basically, the ring wing that joins with valve interior wall is arranged below the blade.When range hood was worked, the blade on the safety check was blown afloat by the oil smoke air-flow, and oil smoke is discharged by flue; When range hood quit work, blade freely fell after rise to encircling on the wing, seals flue, prevented that air-flow from pouring in down a chimney from flue.At present all blades all are to make with the plastic cement of lightweight satisfying under the condition that is blown afloat by the oil smoke air-flow.Plastic cement blade easy deformation, in order to prevent deformable blade, people can only increase vane thickness to strengthen blade strength, so existing plastic cement vane thickness is all more than 1.5mm.Even so, the high-temperature oil smoke gas in the range hood also can make the deformable blade aggravation, has directly influenced the sealing effect between the blade and the ring wing, and gas can pour in down a chimney into indoor from the slit between the blade and the ring wing, and the safety check effect is weakened.
Summary of the invention:
The utility model is in order to solve the technical problem of plastic cement blade easy deformation in the prior art, to provide not yielding, the windproof stability of a kind of blade good range hood safety check.
Technical solution of the present utility model is: a kind of range hood safety check, be provided with valve body 1 and be movably connected in blade 2 in the valve body 1, the ring wing 3 that joins with valve body 1 inwall is arranged below the blade 2, and described blade 2 is made by aluminium sheet, and its thickness is 0.2～1.2mm.
It is to make blade with aluminium sheet that the utility model is compared maximum characteristics with prior art, and its thickness is 0.2～1.2mm, both can satisfy blade and blown afloat by the oil smoke air-flow, can overcome the yielding disadvantage of plastic cement blade again.Solved behind the plastic cement deformable blade the bad problem of sealing effect between the caused blade and the ring wing, safety check has really been played prevent air-flow from leading the effect of filling, guaranteed that gas in time discharges and do not reflux, thereby kept indoor air fresh.
Description of drawings:
Fig. 1 is the utility model embodiment's a structural representation.
Embodiment:
Below in conjunction with description of drawings embodiment of the present utility model.As shown in Figure 1: valve body 1 is arranged, and valve body 1 can be circle, also can be square or semicircle or other shape.Blade 2 is movably connected on the valve body 1 by blade bearing 4, can be integral blade, also can be divided into two.Blade 2 is made by aluminium sheet, and its thickness is 0.2～1.2mm, and the ring wing 3 that joins with valve body 1 inwall is arranged below blade 2.
Claims (1)
1. range hood safety check, be provided with valve body (1) and be movably connected in the interior blade (2) of valve body (1), the ring wing (3) that joins with valve body (1) inwall is arranged below the blade (2), and it is characterized in that: described blade (2) is made by aluminium sheet, and its thickness is 0.2～1.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520089461 CN2784697Y (en) | 2005-02-23 | 2005-02-23 | Check valve for smoke exhaust ventilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520089461 CN2784697Y (en) | 2005-02-23 | 2005-02-23 | Check valve for smoke exhaust ventilator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2784697Y true CN2784697Y (en) | 2006-05-31 |
Family
ID=36771670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520089461 Expired - Fee Related CN2784697Y (en) | 2005-02-23 | 2005-02-23 | Check valve for smoke exhaust ventilator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2784697Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032608A (en) * | 2011-09-30 | 2013-04-10 | 张琦 | Check valve |
| CN103821971A (en) * | 2014-03-01 | 2014-05-28 | 许高歌 | Non-return sealing mechanism for smoke exhaust ventilator |
-
2005
- 2005-02-23 CN CN 200520089461 patent/CN2784697Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032608A (en) * | 2011-09-30 | 2013-04-10 | 张琦 | Check valve |
| CN103821971A (en) * | 2014-03-01 | 2014-05-28 | 许高歌 | Non-return sealing mechanism for smoke exhaust ventilator |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060531 |