CN102818056B - Fire-proof non-return valve for flue - Google Patents
Fire-proof non-return valve for flue Download PDFInfo
- Publication number
- CN102818056B CN102818056B CN201110167364.5A CN201110167364A CN102818056B CN 102818056 B CN102818056 B CN 102818056B CN 201110167364 A CN201110167364 A CN 201110167364A CN 102818056 B CN102818056 B CN 102818056B
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- China
- Prior art keywords
- oil smoke
- baffle plate
- sealing cover
- flue
- valve chest
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Abstract
The invention discloses a fire-proof non-return valve for a flue. The fire-proof non-return valve comprises a cylindrical valve shell, wherein an oil smoke channel is formed on the valve shell along the forward/backward horizontal direction; the middle part of the back end of the valve shell is provided with an oil smoke barrel along the forward/backward horizontal direction; the front end of the oil smoke barrel is connected with the back end of the valve shell; an annular baffle plate is arranged at the front end outlet of the oil smoke barrel; the outer edge of the baffle plate is fixed on the valve shell; the front surface of the baffle plate is matched with the edge of the back surface of a sealing cover; the lower part of the sealing cover is fixedly connected with the upper part of a connecting piece; the lower part of the connecting piece is connected with the bottom of the oil smoke barrel of the valve shell through a rotary pin shaft; the sealing cover is attached to the front end outlet of the oil smoke barrel through a spring return position; a fire-proof device is arranged on the valve shell; and the fire-proof device can be used for closing the oil smoke barrel or the oil smoke channel when high-temperature flue gas is met. The invention aims to provide a fire-proof non-return valve for a flue, which can be used for exhausting flue gas and flue oil out of a public flue smoothly and does not influence the smoothness of the public flue.
Description
Technical field
The present invention relates to a kind of fireproof check valve for flue.
Background technique
Existing flue check valve, under range hood is in running order, when the sealing cover of check valve is in and opens under the airflow function that range hood is carried, due to the project organization problem of sealing cover, the air-flow trend flowed out from the exhaust outlet of safety check is all to blowing down, or to move towards flue vertical with air-flow, thus, if the range hood of each floor works on same flue simultaneously, because downward or horizontal air-flow can have a strong impact on flue gas upper reaches below, the oil smoke of lower floor in flue can be caused thus to be difficult to upwards discharge.
Summary of the invention
The object of the present invention is to provide the windage of a kind of smoke exhaust, tobacco tar little, common flue smoke exhaust, tobacco tar can be made very smooth and easy, the fireproof check valve for flue that common flue is unimpeded can not be affected.
Fireproof check valve for flue of the present invention, comprise the valve chest of tubular, valve chest is provided with oil smoke passage along anterior-posterior horizontal direction, the middle part of valve chest rear end is provided with oil smoke cylinder along anterior-posterior horizontal direction, the front end of oil smoke cylinder is connected with the rear end of valve chest, the front end exit place of oil smoke cylinder is provided with the baffle plate of annular, the outward edge of baffle plate is fixed on described valve chest, the front surface of baffle plate and the edges co-operate of sealing cover rear surface, the bottom of sealing cover and the top of link are fixedly linked, the bottom of link is connected with the bottom of the oil smoke cylinder of described valve chest by axle of shipping and reselling on another market, sealing cover utilizes spring reverse motion to be close to the front end exit place of oil smoke cylinder, described valve chest is provided with refractory protection, refractory protection can cut out described oil smoke cylinder or described oil smoke passage when running into high-temperature flue gas.
Fireproof check valve for flue of the present invention, wherein said spring reverse motion comprises extension spring, the front lower end of extension spring is connected with the middle and upper part of sealing cover rear surface, the front lower end of extension spring is connected with the middle part of sealing cover rear surface, the rear upper end of extension spring is connected with extension spring fixing frame, and extension spring fixing frame is fixed on the inwall of described oil smoke cylinder.
Fireproof check valve for flue of the present invention, wherein said spring reverse motion comprises torsion spring, ships and resell on another market on axle described in torsion spring set is contained in, and a torsion bar of torsion spring withstands on described sealing cover or described link, and another torsion bar of torsion spring withstands on described valve chest.
Fireproof check valve for flue of the present invention, the rear end of wherein said oil smoke passage is provided with the connection baffle plate of annular, the inward flange connecting baffle plate is fixed on described valve chest, and the rear surface of described baffle plate is provided with the fin of annular, and the outer side surface of fin matches with the inwall of described oil smoke cylinder.
Fireproof check valve for flue of the present invention, gap between wherein said baffle plate and described sealing cover adopts seal washer to seal, seal washer is fixed on described baffle plate or on described sealing cover, described axle of shipping and reselling on another market is positioned at front end or the rear end of sealing cover, described connection baffle plate and described valve chest adopt plastics or sheet metal to be made into integration, and the inner side connecting baffle plate is provided with the seal rubber pad of annular.
Fireproof check valve for flue of the present invention, the front end exit place of its oil smoke cylinder is provided with the baffle plate of annular, the outward edge of baffle plate is fixed on described valve chest, the front surface of baffle plate and the edges co-operate of sealing cover rear surface, the bottom of sealing cover and the top of link are fixedly linked, the bottom of link is connected with the bottom of the oil smoke cylinder of valve chest by axle of shipping and reselling on another market, sealing cover utilizes spring reverse motion to be close to the front end exit place of oil smoke cylinder, in use, when sealing cover check valve under the airflow function that range hood is carried be in open time, the air-flow flowed out from the exhaust outlet of oil smoke passage can move upward under the guiding function of sealing cover, significantly can reduce windage thus, and common flue smoke exhaust can be made, tobacco tar is very smooth and easy, common flue can not be affected unimpeded.
Other details of fireproof check valve for flue of the present invention and feature, just can be cheer and bright by reading the embodiment hereafter encyclopaedized by reference to the accompanying drawings.
Accompanying drawing explanation
Fig. 1 is the plan view of the structural representation of a kind of mode of execution of fireproof check valve for flue of the present invention;
Fig. 2 is the side cutaway view of Fig. 1;
Fig. 3 is the plan view of the structural representation of a kind of mode of execution of fireproof check valve for flue of the present invention;
Fig. 4 is the side cutaway view of Fig. 3;
Fig. 5 is the reference drawing that the fireproof check valve for flue of Fig. 3 is in using state.
Embodiment
As depicted in figs. 1 and 2, fireproof check valve for flue of the present invention, comprise the valve chest 1 of tubular, valve chest 1 is provided with oil smoke passage 2 along anterior-posterior horizontal direction, the middle part of valve chest 1 rear end is provided with oil smoke cylinder 3 along anterior-posterior horizontal direction, the front end of oil smoke cylinder 3 is connected with the rear end of valve chest 1, the front end exit place of oil smoke cylinder 3 is provided with the baffle plate 4 of annular, the outward edge of baffle plate 4 is fixed on valve chest 1, the front surface of baffle plate 4 and the edges co-operate of sealing cover 5 rear surface, the bottom of sealing cover 5 and the top of link 6 are fixedly linked, the bottom of link 6 is connected with the bottom of the oil smoke cylinder 3 of valve chest 1 by axle 7 of shipping and reselling on another market, axle 7 of shipping and reselling on another market can be the front end being positioned at sealing cover 5, axle 7 of shipping and reselling on another market also can be the rear end being positioned at sealing cover 5, sealing cover 5 utilizes spring reverse motion to be close to the front end exit place of oil smoke cylinder 3, valve chest 1 is provided with refractory protection 14, refractory protection 14 can cut out oil smoke cylinder 3 or oil smoke passage 2 when running into high-temperature flue gas.Spring reverse motion comprises torsion spring 10, and torsion spring 10 is sleeved on ships and resell on another market on axle 7, and a torsion bar of torsion spring 10 withstands on sealing cover 5 or link 6, and another torsion bar of torsion spring 10 withstands on valve chest 1.
As shown in Figure 3 and Figure 4, fireproof check valve for flue of the present invention, also can be the valve chest 1 comprising tubular, valve chest 1 is provided with oil smoke passage 2 along anterior-posterior horizontal direction, the middle part of valve chest 1 rear end is provided with oil smoke cylinder 3 along anterior-posterior horizontal direction, the front end of oil smoke cylinder 3 is connected with the rear end of valve chest 1, the front end exit place of oil smoke cylinder 3 is provided with the baffle plate 4 of annular, the outward edge of baffle plate 4 is fixed on valve chest 1, the front surface of baffle plate 4 and the edges co-operate of sealing cover 5 rear surface, the bottom of sealing cover 5 and the top of link 6 are fixedly linked, the bottom of link 6 is connected with the bottom of the oil smoke cylinder 3 of valve chest 1 by axle 7 of shipping and reselling on another market, sealing cover 5 utilizes spring reverse motion to be close to the front end exit place of oil smoke cylinder 3, valve chest 1 is provided with refractory protection 14, refractory protection 14 can cut out oil smoke cylinder 3 or oil smoke passage 2 when running into high-temperature flue gas.Spring reverse motion comprises extension spring 8, the front lower end of extension spring 8 is connected with the middle and upper part of sealing cover 5 rear surface, the front lower end of extension spring 8 is connected with the middle part of sealing cover 5 rear surface, and the rear upper end of extension spring 8 is connected with extension spring fixing frame 9, and extension spring fixing frame 9 is fixed on the inwall of oil smoke cylinder 3.
The rear end of above-mentioned oil smoke passage 2 is provided with the connection baffle plate 11 of annular, and the inward flange connecting baffle plate 11 is fixed on valve chest 1, and the rear surface of baffle plate 4 is provided with the fin 13 of annular, and the outer side surface of fin 13 matches with the inwall of oil smoke cylinder 3.Gap between baffle plate 4 and sealing cover 5 adopts seal washer 12 to seal, seal washer 12 is fixed on baffle plate 4 or on sealing cover 5, connecting baffle plate 11 adopts plastics or sheet metal to be made into integration with valve chest 1, and the inner side connecting baffle plate 11 is provided with the seal rubber pad 15 of annular.
As shown in Figure 5, fireproof check valve for flue of the present invention, under range hood is in running order, under the airflow function that sealing cover 5 is carried at range hood, overcomes the pulling force effect of extension spring 8, or overcomes the twisting force of torsion spring 10, push sealing cover 5 open.When sealing cover 5 be in centered by axle 7 of shipping and reselling on another market upset open time, the air-flow flowed out from the exhaust outlet of oil smoke passage 2 can move upward under the guiding function of sealing cover 5, significantly can reduce windage thus, and common flue smoke exhaust, tobacco tar can be made very smooth and easy, can not common flue be affected unimpeded.After range hood quits work, sealing cover 5 will close the outlet port of oil smoke cylinder 3 front end under the pulling force effect of extension spring 8, or sealing cover 5 is the outlet ports closing oil smoke cylinder 3 front end under the twisting force of torsion spring 10.
Embodiment recited above is described the preferred embodiment of the present invention; not the scope of the invention is limited; do not departing under the present invention designs spiritual prerequisite; the various distortion that the common engineers and technicians in related domain make technological scheme of the present invention and improvement, all should fall in protection domain that claims of the present invention determine.
Claims (4)
1. fireproof check valve for flue, it is characterized in that the valve chest (1) comprising tubular, valve chest (1) is provided with oil smoke passage (2) along anterior-posterior horizontal direction, the middle part of valve chest (1) rear end is provided with oil smoke cylinder (3) along anterior-posterior horizontal direction, the front end of oil smoke cylinder (3) is connected with the rear end of valve chest (1), the front end exit place of oil smoke cylinder (3) is provided with the baffle plate (4) of annular, the outward edge of baffle plate (4) is fixed on described valve chest (1), the front surface of baffle plate (4) and the edges co-operate of sealing cover (5) rear surface, the bottom of sealing cover (5) and the top of link (6) are fixedly linked, the bottom of link (6) is connected by the bottom of axle of shipping and reselling on another market (7) with the oil smoke cylinder (3) of described valve chest (1), sealing cover (5) utilizes spring reverse motion to be close to the front end exit place of oil smoke cylinder (3), described valve chest (1) is provided with refractory protection (14), refractory protection (14) can cut out described oil smoke cylinder (3) or described oil smoke passage (2) when running into high-temperature flue gas,
The front end of described oil smoke passage (2) is provided with the connection baffle plate (11) of annular, the inward flange connecting baffle plate (11) is fixed on described valve chest (1), the rear surface of described baffle plate (4) is provided with the fin (13) of annular, and the outer side surface of fin (13) matches with the inwall of described oil smoke cylinder (3).
2. fireproof check valve for flue according to claim 1, it is characterized in that described spring reverse motion comprises extension spring (8), the front lower end of extension spring (8) is connected with the middle and upper part of sealing cover (5) rear surface, or the front lower end of extension spring (8) is connected with the middle part of sealing cover (5) rear surface, the rear upper end of extension spring (8) is connected with extension spring fixing frame (9), and extension spring fixing frame (9) is fixed on the inwall of described oil smoke cylinder (3).
3. fireproof check valve for flue according to claim 1, it is characterized in that described spring reverse motion comprises torsion spring (10), ship and resell on another market on axle (7) described in torsion spring (10) is sleeved on, a torsion bar of torsion spring (10) withstands on described sealing cover (5) or described link (6), and another torsion bar of torsion spring (10) withstands on described valve chest (1).
4. the fireproof check valve for flue according to claim 1 or 2 or 3, it is characterized in that the gap between described baffle plate (4) and described sealing cover (5) adopts seal washer (12) to seal, seal washer (12) is fixed on described baffle plate (4) or on described sealing cover (5), described axle of shipping and reselling on another market (7) is positioned at front end or the rear end of sealing cover (5), described connection baffle plate (11) and described valve chest (1) adopt plastics or sheet metal to be made into integration, the inner side connecting baffle plate (11) is provided with the seal rubber pad (15) of annular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110167364.5A CN102818056B (en) | 2011-06-12 | 2011-06-12 | Fire-proof non-return valve for flue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110167364.5A CN102818056B (en) | 2011-06-12 | 2011-06-12 | Fire-proof non-return valve for flue |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102818056A CN102818056A (en) | 2012-12-12 |
| CN102818056B true CN102818056B (en) | 2015-06-17 |
Family
ID=47302372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110167364.5A Active CN102818056B (en) | 2011-06-12 | 2011-06-12 | Fire-proof non-return valve for flue |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102818056B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240582A (en) * | 2015-10-16 | 2016-01-13 | 宁波方太厨具有限公司 | Flue fire damper for range hood |
| CN113566333A (en) * | 2021-08-24 | 2021-10-29 | 珠海格力电器股份有限公司 | Air conditioning equipment |
| CN116726616A (en) * | 2023-06-06 | 2023-09-12 | 山东禹城金晟生物净化有限公司 | High-temperature waste heat recycling device of gas boiler |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4457294A (en) * | 1981-07-06 | 1984-07-03 | Cumpston Edward H | Inlet air control for stove or furnace |
| CN2310215Y (en) * | 1997-08-08 | 1999-03-10 | 王军 | Check valve for kitchen fume exhausting flue duct |
| CN201507976U (en) * | 2009-08-06 | 2010-06-16 | 夏志生 | Head wind prevent device for range hood |
| CN201764028U (en) * | 2010-08-27 | 2011-03-16 | 郭海兵 | Main body structure of flue check valve switch |
| CN202149256U (en) * | 2011-06-12 | 2012-02-22 | 解焕强 | Fireproof check valve for flue |
-
2011
- 2011-06-12 CN CN201110167364.5A patent/CN102818056B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4457294A (en) * | 1981-07-06 | 1984-07-03 | Cumpston Edward H | Inlet air control for stove or furnace |
| CN2310215Y (en) * | 1997-08-08 | 1999-03-10 | 王军 | Check valve for kitchen fume exhausting flue duct |
| CN201507976U (en) * | 2009-08-06 | 2010-06-16 | 夏志生 | Head wind prevent device for range hood |
| CN201764028U (en) * | 2010-08-27 | 2011-03-16 | 郭海兵 | Main body structure of flue check valve switch |
| CN202149256U (en) * | 2011-06-12 | 2012-02-22 | 解焕强 | Fireproof check valve for flue |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102818056A (en) | 2012-12-12 |
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Effective date of registration: 20201013 Address after: 266199 No. 618 C 24 Huishui Road, Licang District, Qingdao City, Shandong Province Patentee after: Liu Congyi Address before: 265713 Shandong province Longkou City Xu Fu Feng Gao Qian Cun emerging plastic factory Patentee before: Xie Huanqiang |