CN203309217U - Oil and smoke discharging and fireproof check valve - Google Patents
Oil and smoke discharging and fireproof check valve Download PDFInfo
- Publication number
- CN203309217U CN203309217U CN2013202503862U CN201320250386U CN203309217U CN 203309217 U CN203309217 U CN 203309217U CN 2013202503862 U CN2013202503862 U CN 2013202503862U CN 201320250386 U CN201320250386 U CN 201320250386U CN 203309217 U CN203309217 U CN 203309217U
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- CN
- China
- Prior art keywords
- valve block
- movable
- check rod
- rod
- valve
- 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 an oil and smoke discharging and fireproof check valve which comprises a cylindrical valve shell, a valve block and a checking device. The valve block is round and is connected to the valve shell in a rotating mode through a revolving shaft of the valve block. The axis of the revolving shaft of the valve block is a secant line deviating from the center of the valve block. The checking device comprises a fixed checking rod, a movable checking rod, a torsional spring and a metal fastener. One end of the fixed checking rod and the metal fastener are fixed on the valve shell and located on a minor arc side, divided by the revolving shaft of the valve block, of the valve block. The other end of the fixed checking rod and the movable checking rod are connected with the torsional spring through a movable shaft. One torsional arm of the torsional spring is connected with the fixed checking rod, and the other torsional arm of the torsional spring is connected with the movable checking rod. Force, for the movable checking rod to move towards the center of the valve block, is exerted on the movable checking rod so that the trend that the movable checking rod moves towards the center of the valve block is generated. The other end of the movable checking rod is connected with the metal fastener so as to prevent the movable checking rod from moving towards the center of the valve block.
Description
Technical field
The utility model relates to the oil-smoke-exhausting fireproof check valve used in a kind of kitchen.
Background technique
In existing technology, the check valve used in kitchen comprises valve chest, be arranged on the oil smoke passage of valve chest inside, the two ends of oil smoke passage have respectively intake grill and exhaust outlet, and rotating valve block also is set, when people use kitchen ventilator, valve block is shown in an open position, and the oil smoke passage communicates with the vertical passage in building, when not using kitchen ventilator, valve block is in the closed position, and the oil smoke passage is not communicated with the vertical passage in building.Due to many public vertical passages of user, in case breaking out of fire, a large amount of high-temperature harmful gas pours in vertical passage, if close not in time the valve block of check valve, the harmful gas that these flow velocitys are fast, temperature is high will blow back into resident family from the oil smoke passage of check valve, thereby threatens for user's the security of the lives and property.
The model utility content
The purpose of this utility model is to provide a kind of oil-smoke-exhausting fireproof check valve with backstop, with overcome under the state that temperature is very high in vertical passage can't the self acting stop valve sheet defect.
The technical solution of the utility model is: oil-smoke-exhausting fireproof check valve of the present utility model, the valve chest, valve block and the backstop that comprise tubular, it is characterized in that, described valve block is circular, and be rotatably connected on described valve chest by the valve block rotating shaft, the axis of described valve block rotating shaft is the secant that departs from the valve block center of circle; Described backstop comprises fixedly check rod, movable check rod, torsion spring and metal button member, and described fixedly check rod one end and metal button member are fixed on described valve chest, and is positioned at the minor arc side after described valve block is cut apart by described valve block rotating shaft; The described fixedly check rod the other end is connected with torsion spring by movable axis with movable check rod, one of described torsion spring is turned round arm and is connected with fixing check rod, described torsion spring another is turned round arm and is connected with movable check rod, described movable check rod is imposed to the power at described valve block center, make movable check rod produce the trend to described valve block central motion; The movable check rod the other end is connected with metal button member, and obstruction activity check rod is to described valve block central motion.
The described fixedly check rod the other end is connected with torsion spring by pin with movable check rod.
Described valve chest, valve block are made by stainless steel material.
The beneficial effect that the utility model is obtained comprises:
1, when the vertical passage temperature raise, metal button member fused when reaching setting temperature, and described torsion spring promotes the center rotating of described movable check rod to valve block, makes valve block enter and is maintained in its closed position, and has effectively guaranteed user security.
2, the utility model simple structure, be easy to batch production.
The accompanying drawing explanation
Fig. 1 is the structural representation of the utility model oil-smoke-exhausting fireproof check valve;
Fig. 2 is the structural representation of the utility model oil-smoke-exhausting fireproof check valve while closing valve block;
Wherein 1 is valve chest, and 2 is valve block, and 3 is movable check rod, and 4 is torsion spring, and 5 is pin, and 6 are fixing check rod, and 7 is metal button member.
Embodiment
As depicted in figs. 1 and 2, oil-smoke-exhausting fireproof check valve of the present utility model, the valve chest 1, valve block 2 and the backstop that comprise tubular, it is characterized in that, described valve block 2 is circular, and be rotatably connected on described valve chest 1 by the valve block rotating shaft, the axis of described valve block rotating shaft is the secant that departs from the valve block center of circle; Described backstop comprises fixedly check rod 6, movable check rod 3, torsion spring 4 and metal button member 7, and described fixedly check rod 6 one ends and metal button member 7 are fixed on described valve chest 1, is positioned at the minor arc side after described valve block 2 is cut apart by described valve block rotating shaft; Described fixedly check rod 6 the other ends are connected with torsion spring 4 by pin 5 with movable check rod 3,4 one of described torsion springs are turned round arm and are connected with fixing check rod 6, described torsion spring 4 anothers are turned round arm and are connected with movable check rod 3, described movable check rod 3 is imposed to the power at described valve block 2 centers to the trend that movable check rod 3 is produced to described valve block 2 central motions; Movable check rod 3 the other ends are connected with metal button member 7, and obstruction activity check rod 3 is to described valve block 2 central motions.Described valve chest 1, valve block 2 are made by stainless steel material.When the vertical passage temperature raise, metal button member 7 fused when reaching setting temperature, and described torsion spring 4 promotes the center rotating of described movable check rod to valve block 2, makes valve block 2 enter and be maintained in its closed position, and has effectively guaranteed user security.
Claims (3)
1. oil-smoke-exhausting fireproof check valve, comprise valve chest, valve block and the backstop of tubular, it is characterized in that, described valve block is circular, and be rotatably connected on described valve chest by the valve block rotating shaft, the axis of described valve block rotating shaft is the secant that departs from the valve block center of circle; Described backstop comprises fixedly check rod, movable check rod, torsion spring and metal button member, and described fixedly check rod one end and metal button member are fixed on described valve chest, and is positioned at the minor arc side after described valve block is cut apart by described valve block rotating shaft; The described fixedly check rod the other end is connected with torsion spring by movable axis with movable check rod, one of described torsion spring is turned round arm and is connected with fixing check rod, described torsion spring another is turned round arm and is connected with movable check rod, described movable check rod is imposed to the power at described valve block center, make movable check rod produce the trend to described valve block central motion; The movable check rod the other end is connected with metal button member, and obstruction activity check rod is to described valve block central motion.
2. oil-smoke-exhausting fireproof check valve according to claim 1, is characterized in that, the described fixedly check rod the other end is connected with torsion spring by pin with movable check rod.
3. oil-smoke-exhausting fireproof check valve according to claim 1 and 2, is characterized in that, described valve chest, valve block are made by stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202503862U CN203309217U (en) | 2013-05-10 | 2013-05-10 | Oil and smoke discharging and fireproof check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202503862U CN203309217U (en) | 2013-05-10 | 2013-05-10 | Oil and smoke discharging and fireproof check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203309217U true CN203309217U (en) | 2013-11-27 |
Family
ID=49615430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202503862U Expired - Fee Related CN203309217U (en) | 2013-05-10 | 2013-05-10 | Oil and smoke discharging and fireproof check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203309217U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678400A (en) * | 2017-03-13 | 2017-05-17 | 杭州小米环境科技有限公司 | Fireproof check valve |
| CN110454598A (en) * | 2019-08-21 | 2019-11-15 | 李永彬 | High closed, flow-guiding type oil-smoke-exhausting fireproof check valve |
-
2013
- 2013-05-10 CN CN2013202503862U patent/CN203309217U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678400A (en) * | 2017-03-13 | 2017-05-17 | 杭州小米环境科技有限公司 | Fireproof check valve |
| CN106678400B (en) * | 2017-03-13 | 2018-09-28 | 杭州小米环境科技有限公司 | A kind of fire-preventing check valve |
| CN110454598A (en) * | 2019-08-21 | 2019-11-15 | 李永彬 | High closed, flow-guiding type oil-smoke-exhausting fireproof check valve |
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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: 20131127 Termination date: 20150510 |
|
| EXPY | Termination of patent right or utility model |