CN2580244Y - Check value of air exhaust conduit - Google Patents
Check value of air exhaust conduit Download PDFInfo
- Publication number
- CN2580244Y CN2580244Y CN 02279605 CN02279605U CN2580244Y CN 2580244 Y CN2580244 Y CN 2580244Y CN 02279605 CN02279605 CN 02279605 CN 02279605 U CN02279605 U CN 02279605U CN 2580244 Y CN2580244 Y CN 2580244Y
- Authority
- CN
- China
- Prior art keywords
- valve plate
- check valve
- air exhaust
- seat ring
- exhaust channel
- 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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- Check Valves (AREA)
Abstract
The utility model relates to a check valve of an exhaust airway, which comprises a tubular joint for connecting an inlet of an exhaust airway with an air exhaust outlet of a cooking fume exhaust fan. A base ring is fixed on the inner wall of the tubular joint, and the outer side of the base ring is provided with a check valve plate which is hinged with the inner side body of the tubular joint through the upper end part of the check valve plate. The utility model can efficiently prevent dirty gas discharged into the exhaust airway from flowing back to rooms.
Description
Technical field: the utility model relates to a kind of air exhaust channel safety check.
Technical background: at present, the valve plate of the safety check that uses in air exhaust channel is that two or multi-disc are formed mostly, owing to constructional reason, makes it have certain clearance and can not realize reliable sealing.
Summary of the invention: the purpose of this utility model is that a kind of air exhaust channel safety check will be provided, and it can effectively prevent to be discharged into the anti-room that flows to of unpurified gas in the air exhaust channel.
The utility model is to constitute like this, it comprises in order to be connected in the tubular configured joint between air exhaust channel inlet and the lampblack exhauster wind exhausting outlet, be connected with seat ring on the inwall of tubular configured joint, the outside of seat ring is provided with check valve plate, and check valve plate lateral body in its upper end portion and tubular configured joint is hinged.
When work, because the exhaust of range hood makes check valve plate open and discharge unpurified gas that the oil that contains in the unpurified gas then sticks on the check valve plate front, and flows to air outlet flue and range hood.After unpurified gas is got rid of, the check valve plate return, thus just prevent the anti-room that flows to of unpurified gas effectively.
Than existing air exhaust channel safety check,,, improved sealing so solved the defect that has the gap between the multi-disc valve plate because check valve plate of the present utility model has only a slice.Leave certain distance under its seat ring, can make the oil content that condenses in the flue gas not flow to air outlet flue and range hood, be not easy to make check valve plate to be stained with.The simple structure of this product, cheap, be convenient to clean.
Description of drawings: Fig. 1 is the utility model embodiment's a sectional drawing.
Fig. 2 is the utility model embodiment's a user mode schematic representation.
Embodiment: with reference to Fig. 1 Fig. 2, the utility model embodiment comprises in order to be connected in the tubular configured joint 1 between air exhaust channel inlet I and the lampblack exhauster wind exhausting outlet II, be connected with seat ring 2 on the inwall of tubular configured joint, the outside of seat ring is provided with check valve plate 3, and check valve plate lateral body in its upper end portion and tubular configured joint is hinged.
The hinge 4 of described safety check is located on the rear sidewall on seat ring top, and it is skewed that seat ring is, and its top tendency is inboard, and the outer side surface of seat ring is provided with the flange 5 that can contact with check valve plate in order to sealing.
The utility model embodiment's seat ring tilts, and a circle flange is arranged on the limit of endoporus, so further improved its sealing.And the hinge of check valve plate is at lee face, and the oil that is not easy to be condensed is stained with and valve plate is not opened.
The utility model structure is novel, and reasonable in design, using effect is good, has bigger application value.
Claims (2)
1, a kind of air exhaust channel safety check, it is characterized in that: comprise in order to be connected in the tubular configured joint between air exhaust channel inlet and the lampblack exhauster wind exhausting outlet, be connected with seat ring on the inwall of tubular configured joint, the outside of seat ring is provided with check valve plate, and check valve plate lateral body in its upper end portion and tubular configured joint is hinged.
2, air exhaust channel safety check according to claim 1, it is characterized in that: the hinge of described safety check is located on the rear sidewall on seat ring top, it is skewed that seat ring is, its top tendency lampblack exhauster wind exhausting outlet one side, the outer side surface of seat ring is provided with the flange that can contact with check valve plate in order to sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02279605 CN2580244Y (en) | 2002-10-15 | 2002-10-15 | Check value of air exhaust conduit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02279605 CN2580244Y (en) | 2002-10-15 | 2002-10-15 | Check value of air exhaust conduit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2580244Y true CN2580244Y (en) | 2003-10-15 |
Family
ID=33742645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02279605 Expired - Fee Related CN2580244Y (en) | 2002-10-15 | 2002-10-15 | Check value of air exhaust conduit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2580244Y (en) |
-
2002
- 2002-10-15 CN CN 02279605 patent/CN2580244Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |