CN201636948U - Non-return sealing structure used for oil-fume extractor - Google Patents
Non-return sealing structure used for oil-fume extractor Download PDFInfo
- Publication number
- CN201636948U CN201636948U CN2009202194684U CN200920219468U CN201636948U CN 201636948 U CN201636948 U CN 201636948U CN 2009202194684 U CN2009202194684 U CN 2009202194684U CN 200920219468 U CN200920219468 U CN 200920219468U CN 201636948 U CN201636948 U CN 201636948U
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- China
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- check plate
- return
- elastic sealing
- expelling tube
- sealing structure
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Abstract
The utility model discloses a component used for an oil-fume extractor, in particular to a non-return sealing structure used for the oil-fume extractor, which includes a valve body, wherein a discharge cylinder is connected with the inner side of the valve body, a non-return plate capable of being upended is equipped at the upper end opening of the discharge cylinder, an elastic sealing piece is connected on the non-return plate and matched with the upper end opening of the discharge cylinder, and the elastic sealing piece is curved. Compared with the prior art, the non-return sealing structure has the advantages as follows: the deformable sealing piece is arranged on the non-return plate and is matched with the upper end opening of the prismatic discharge cylinder, therefore, when a clearance appears between the non-return plate and the upper end opening of the discharge cylinder, the clearance can be replenished through the deformation of the elastic sealing piece, the good sealing effect is realized between the non-return plate and the upper end opening of the discharge cylinder, the gas backflow is completely avoided, the indoor air keeps sanitary, and the sanitary indoor air is more important in a building with a public flue; and the noise caused by the falling back of the non-return plate is reduced at the same time.
Description
Technical field:
The utility model relates to a kind of range hood parts, particularly a kind of non-return sealing structure for range hood.
Background technology:
Existing smoke exhaust all is furnished with non-return sealing structure, flows backwards to prevent gas.Concrete structure is: linking to each other with the casing outlet of smoke exhaust is connected to expelling tube, and the outside of expelling tube is connected to valve body, during installation, by bellows valve body is communicated with outdoor.Upper shaft at expelling tube is connected with check plate, and when smoke exhaust was not worked, check plate was taken and dropped on expelling tube upper port place, has stoped the gas refluence.During smoke exhaust work, the flue gas of discharge blows check plate and upwards turns an angle, and promptly opens expelling tube, makes flue gas be drained into outdoor through valve body and bellows.Use for a long time, the oil smoke coagulation makes easily between check plate and the expelling tube upper port and produces adhesion, and the upper port periphery with expelling tube that has is processed into angular, make its with check plate between contact for line.The non-return sealing means of this structure has following shortcoming: parts scale error can occur in process, the stress that also can occur varying in size after the installation, cause check plate can not and the expelling tube upper port between fully the sealing, the slit appears inevitably; Because variation of temperature can make parts generation certain deformation, cause sealing between check plate and the expelling tube upper port bad in use.
Summary of the invention
The purpose of this utility model provides a kind of non-return good sealing effect, the simple non-return sealing structure for range hood of overall structure, overcomes the deficiencies in the prior art.
Non-return sealing structure for range hood of the present utility model, it comprises valve body 1, be connected to expelling tube 3 in the inboard of valve body 1, the upper port of expelling tube 3 is furnished with turnover check plate 2, it is characterized in that: be connected with elastic sealing element 6 on check plate 2, elastic sealing element 6 matches with expelling tube 3 upper port.
Non-return sealing structure for range hood of the present utility model, wherein said elastic sealing element 6 is bending.
Non-return sealing structure for range hood of the present utility model, the upper port periphery of wherein said expelling tube 3 is provided with top rib 5.
Non-return sealing structure for range hood of the present utility model, wherein said check plate 2 as a whole plates, one side and the support 4 of check plate 2 are rotationally connected, support 4 is fixed on the connecting plate 8 between valve body 1 and the expelling tube 3, periphery at check plate 2 is provided with groove 7, and the inner side edge of described elastic sealing element 6 is clamped in the groove 7.
Non-return sealing structure for range hood of the present utility model, wherein said expelling tube 3 is cylindric, and described check plate 2 is discoideus, and described elastic sealing element 6 is downward concavity for circular and its section.
Non-return sealing structure for range hood of the present utility model, wherein said check plate 2 is formed for two parts, the centre interconnects by rotating shaft, this rotating shaft is supported on centre position, expelling tube 3 top, the inner side edge of the periphery of check plate 2 and elastic sealing element 6 joins, and the section of elastic sealing element 6 is downward concavity.
Non-return sealing structure for range hood of the present utility model compared with prior art, owing on check plate, there is deformable elastic sealing element to match with the expelling tube upper port of rib shape, when the slit occurring between check plate and the expelling tube upper port, can replenish by the distortion of elastic sealing element, make between check plate and the expelling tube upper port and have good sealing effectiveness, thoroughly prevented the refluence of gas, the health that has kept room air, especially the building to public gas flue seems even more important; The noise that has been produced when also having reduced simultaneously the check plate falling.
Description of drawings
Fig. 1 is the structural representation of the utility model specific embodiment;
Fig. 2 is an A portion enlarged diagram shown in Figure 1;
Fig. 3 is the local enlarged diagram of the check plate shown in Fig. 1;
Fig. 4 is the structural representation when check plate upwards turns an angle in the utility model specific embodiment.
The specific embodiment
Embodiment 1: as shown in Figure 1, 2, 3: 1 is valve body, and 3 is expelling tube, and expelling tube 3 is positioned at the inboard of valve body 1, is connected by connecting plate 8 between expelling tube 3 and valve body 1.The inboard, upper port place of expelling tube 3 is processed with the inclined-plane and forms top rib 5.2 is check plate, and a side of check plate 2 is rotationally connected by rotating shaft and support 4, and support 4 is fixedlyed connected with connecting plate 8 screws or be bonding.Valve body 1, expelling tube 3 are cylindric, check plate 2 is discoideus, periphery at check plate 2 is processed with groove 7 (as Fig. 3), the elastic sealing element 6 of annular is sleeved on the groove 7, the inner side edge of elastic sealing element 6 is placed in the groove 7, the outer side edges of elastic sealing element 6 is to having a downwarp, and promptly the section of elastic sealing element 6 is to recessed bending.During smoke exhaust work, under the power of the blowing effect of gas, check plate 2 upwards turns an angle and opens expelling tube 3.When not working, check plate 2 and elastic sealing element 6 are enclosed in the upper port place of expelling tube 3 under the gravity effect, and elastic sealing element 6 contacts with the top rib 5 of expelling tube 3 tops.
Embodiment 2: as different from Example 1: above-mentioned check plate also can be made up of two parts, two parts are rotatably connected mutually by rotating shaft, this rotating shaft is supported on the centre position of expelling tube top, elastic sealing element also is divided into two parts thereupon, can fixedly connected by screw, clamping plate or draw-in groove etc. between the inner side edge of elastic sealing element and the check plate.
Claims (6)
1. non-return sealing structure for range hood, it comprises valve body (1), be connected to expelling tube (3) in the inboard of valve body (1), the upper port of expelling tube (3) is furnished with turnover check plate (2), it is characterized in that: be connected with elastic sealing element (6) on check plate (2), elastic sealing element (6) matches with expelling tube (3) upper port.
2. non-return sealing structure for range hood according to claim 1 is characterized in that: described elastic sealing element (6) is bending.
3. non-return sealing structure for range hood according to claim 2 is characterized in that: the upper port periphery of described expelling tube (3) is provided with top rib (5).
4. non-return sealing structure for range hood according to claim 3, it is characterized in that: the as a whole plate of described check plate (2), one side of check plate (2) and support (4) are rotationally connected, support (4) is fixed on the connecting plate (8) between valve body (1) and the expelling tube (3), periphery at check plate (2) is provided with groove (7), and the inner side edge of described elastic sealing element (6) is clamped in the groove (7).
5. non-return sealing structure for range hood according to claim 4 is characterized in that: described expelling tube (3) is for cylindric, and described check plate (2) is discoideus, and described elastic sealing element (6) is downward concavity for circular and its section.
6. according to claim 1 or 2 or 3 described non-return sealing structure for range hood, it is characterized in that: described check plate (2) is formed for two parts, the centre interconnects by rotating shaft, this rotating shaft is supported on centre position, expelling tube (3) top, the inner side edge of the periphery of check plate (2) and elastic sealing element (6) joins, and the section of elastic sealing element (6) is downward concavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202194684U CN201636948U (en) | 2009-02-17 | 2009-10-15 | Non-return sealing structure used for oil-fume extractor |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920010894 | 2009-02-17 | ||
| CN200920010894.7 | 2009-02-17 | ||
| CN2009202194684U CN201636948U (en) | 2009-02-17 | 2009-10-15 | Non-return sealing structure used for oil-fume extractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201636948U true CN201636948U (en) | 2010-11-17 |
Family
ID=43081443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202194684U Expired - Lifetime CN201636948U (en) | 2009-02-17 | 2009-10-15 | Non-return sealing structure used for oil-fume extractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201636948U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104942A (en) * | 2013-03-07 | 2013-05-15 | 唐儒炳 | Discharge flue non-return device |
| CN110899633A (en) * | 2019-12-11 | 2020-03-24 | 扬州大学 | Combined die for machining duct type oil smoke backflow prevention check device and using method of die |
| CN111306112A (en) * | 2020-02-28 | 2020-06-19 | 武汉市研华智造环保科技有限公司 | Anti-backflow smoke exhaust fan channel |
-
2009
- 2009-10-15 CN CN2009202194684U patent/CN201636948U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104942A (en) * | 2013-03-07 | 2013-05-15 | 唐儒炳 | Discharge flue non-return device |
| CN103104942B (en) * | 2013-03-07 | 2015-12-09 | 唐儒炳 | A kind of discharge flue non-return device |
| CN110899633A (en) * | 2019-12-11 | 2020-03-24 | 扬州大学 | Combined die for machining duct type oil smoke backflow prevention check device and using method of die |
| CN110899633B (en) * | 2019-12-11 | 2020-12-08 | 扬州大学 | Combined die for machining duct type oil smoke backflow prevention check device and using method of die |
| CN111306112A (en) * | 2020-02-28 | 2020-06-19 | 武汉市研华智造环保科技有限公司 | Anti-backflow smoke exhaust fan channel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20101117 Effective date of abandoning: 20091015 |
|
| RGAV | Abandon patent right to avoid regrant |