CN201787139U - Coupling type check valve capable of discharging oil and smoke and resisting fire - Google Patents
Coupling type check valve capable of discharging oil and smoke and resisting fire Download PDFInfo
- Publication number
- CN201787139U CN201787139U CN2010200205935U CN201020020593U CN201787139U CN 201787139 U CN201787139 U CN 201787139U CN 2010200205935 U CN2010200205935 U CN 2010200205935U CN 201020020593 U CN201020020593 U CN 201020020593U CN 201787139 U CN201787139 U CN 201787139U
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- CN
- China
- Prior art keywords
- spring
- check valve
- coupling type
- fastener
- baffle
- 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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- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
A coupling type check valve capable of discharging oil and smoke and resisting fire comprises a base, wherein the air opening of the base is movably provided with a baffle, the air opening outline of the base is provided with a fastener, the fixed column of the baffle is provided with a spring, the two ends of which are provided with a first barrier strip and a second barrier strip, and the second barrier 7 is fixed with the inner edge of the air opening of the base 1. In use, the end head of the first barrier strip on the spring is buckled into the fastener, when temperature in a pipeline is higher than the safety temperature, the fastener is fusing, the first barrier strip is flicked onto the baffle 2 by the force of the spring so as to form spring force with the second barrier strip and the spring to close the baffle. The coupling check valve can close down the pipeline automatically without manual regulation.
Description
Technical field
The utility model relates to a kind of building air exhausting device, particularly a kind of coupling type oil extraction flue gas fire-preventing check valve.
Background technique
Existing building is provided with shared air exhaust channel more, each layer kitchen is communicated with shared air exhaust channel respectively, in order to prevent that the foul smell in the shared air exhaust channel from recharging, also the pyrotechnics in the shared air exhaust channel pours in down a chimney when preventing other floor breaking out of fires, and kitchen and shared interchannel are provided with the fire prevention fire damper.Existing fire damper just is provided with catch in the air port, danger occurs, must hand adjustment just can seal pipeline, function singleness.
Summary of the invention
In order to overcome the defective of above-mentioned prior art, the purpose of this utility model is to provide a kind of coupling type oil extraction flue gas fire-preventing check valve, and when temperature was higher than safety temperature, closed conduct need not artificial hand adjustment automatically.
In order to achieve the above object, the technical solution of the utility model is achieved in that a kind of coupling type oil extraction flue gas fire-preventing check valve, comprise pedestal 1, be movably set with baffle plate 2 on the air port of pedestal 1, it is characterized in that, the air port profile of pedestal 1 is provided with fastener 4, and the fixing column 3 of baffle plate 2 is provided with spring 5.
The two ends of described spring 5 are respectively arranged with first blend stop 6 and second blend stop, 7, the second blend stops 7 are fixed with the air port inward flange of pedestal 1.
Termination with first blend stop 6 on the spring 5 when the utility model uses buckles into fastener 4, and when temperature was higher than safety temperature in the pipeline, fastener 4 fusing utilized spring force, and first blend stop 6 is bound on the baffle plate 2, makes baffle plate 2 close.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing structural principle of the present utility model and working principle are described in detail.
With reference to accompanying drawing, a kind of coupling type oil extraction flue gas fire-preventing check valve, comprise pedestal 1, be movably set with baffle plate 2 on the air port of pedestal 1, it is characterized in that, the air port profile of pedestal 1 is provided with fastener 4, fastener 4 fusing-off temperatures are about 150 ℃, and the fixing column 3 of baffle plate 2 is provided with spring 5, and the two ends of spring 5 are respectively arranged with first blend stop 6 and second blend stop 7, second blend stop 7 is fixed with the air port inward flange of pedestal 1, first blend stop 6 can be buckled in the fastener 4, can open at baffle plate 2, forms one spring force with second blend stop 7 and spring 5, make baffle plate 2 close seal for pipe joints.
Working principle of the present utility model is: the termination with first blend stop 6 on the spring 5 during use buckles into fastener 4, and when temperature was higher than safety temperature in the pipeline, fastener 4 fusing utilized spring force, and first blend stop 6 is bound on the baffle plate 2, makes baffle plate 2 close seal for pipe joints.
Claims (2)
1. coupling type oil extraction flue gas fire-preventing check valve, comprise pedestal (1), be movably set with baffle plate (2) on the air port of pedestal (1), it is characterized in that, the air port profile of pedestal (1) is provided with fastener (4), and the fixing column (3) of baffle plate (2) is provided with spring (5).
2. a kind of coupling type oil extraction flue gas fire-preventing check valve according to claim 1 is characterized in that the two ends of described spring (5) are respectively arranged with first blend stop (6) and second blend stop (7), and second blend stop (7) is fixed with the air port inward flange of pedestal (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200205935U CN201787139U (en) | 2010-01-15 | 2010-01-15 | Coupling type check valve capable of discharging oil and smoke and resisting fire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200205935U CN201787139U (en) | 2010-01-15 | 2010-01-15 | Coupling type check valve capable of discharging oil and smoke and resisting fire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201787139U true CN201787139U (en) | 2011-04-06 |
Family
ID=43819102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010200205935U Expired - Fee Related CN201787139U (en) | 2010-01-15 | 2010-01-15 | Coupling type check valve capable of discharging oil and smoke and resisting fire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201787139U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105890010A (en) * | 2016-06-14 | 2016-08-24 | 冯莉莉 | Manufacturing method for tension spring type ventilation door of smoke exhauster |
-
2010
- 2010-01-15 CN CN2010200205935U patent/CN201787139U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105890010A (en) * | 2016-06-14 | 2016-08-24 | 冯莉莉 | Manufacturing method for tension spring type ventilation door of smoke exhauster |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110406 Termination date: 20150115 |
|
| EXPY | Termination of patent right or utility model |