CN202165652U - Fireproof check valve for smoke flue - Google Patents
Fireproof check valve for smoke flue Download PDFInfo
- Publication number
- CN202165652U CN202165652U CN2011202694659U CN201120269465U CN202165652U CN 202165652 U CN202165652 U CN 202165652U CN 2011202694659 U CN2011202694659 U CN 2011202694659U CN 201120269465 U CN201120269465 U CN 201120269465U CN 202165652 U CN202165652 U CN 202165652U
- Authority
- CN
- China
- Prior art keywords
- valve body
- flue
- air door
- check valve
- 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 a fireproof check valve for a smoke flue, which comprises a round valve body. A valve cavity is arranged on the valve body, and a throttle is arranged in the valve cavity and hinged onto the valve body through a hinge. A torsional spring is arranged on a connecting rod in the hinge, and a hook-shaped piece on the torsional spring is inserted into a clamping groove of a fuse link located on the position above the throttle. The fireproof check valve for the smoke flue is simple in structure, convenient in installation, tight in attachment to an air flue, capable of saving materials and safe and reliable in use. When temperature in the smoke flue is too high and emergency state occurs, the throttle can be quickly and tightly closed, thereby having good fireproof effect.
Description
Technical field
The utility model belongs to building flue air exhausting device technical field, relate in particular to a kind of can be with oil smoke discharge to outdoor, and can prevent the flue fire-preventing check valve that non-return cigarette flows backwards.
Background technique
In modern times in the oil-smoke expulsion pipe of the house design, normally the oil-smoke expulsion pipe of every floor resident family is connected with public flue in the kitchen, realizes concentrating through public flue and outwards discharge oil smoke.Oil-smoke expulsion pipe and public flue joint at each household all need be provided with a flue safety check usually; Be provided with air door in the valve body; Air door relies on self gravitation and valve to be closed condition under nature; When range hood is opened, open automatically at the blast lower wind door, make oil smoke get into public flue.
Because public flue of the common use of how tame user, in case a tame breaking out of fire, the great amount of high-temperature flue gas will pour in into public flue, gets at last and is using in the users home of range hood.So be typically provided with a fuse link on the flue safety check, make the air door positive closing after chance is molten.
At present, the defective that existing flue safety check exists on the market has: 1. profile is square, and not tight with the wall body applying during installation, aesthetics is not enough, waste material.2. the Placement of air door and base is comparatively complicated, inconvenient machining.3. when temperature was too high, air door fell after rise slow, and can not guarantee the tight closure of air door, and flameproof effect is not good.
The model utility content
The purpose of the utility model is to overcome the deficiency of above-mentioned existing technology, provides a kind of simple in structure, the flue fire-preventing check valve that flameproof effect is good.
The technological scheme of the utility model is: a kind of flue fire-preventing check valve comprises valve body; Valve body is provided with valve pocket; Be provided with air door in the valve pocket, said valve body is circular, and air door is hinged on the valve body through hinge; Connecting rod in the said hinge is provided with torsion spring, and hook-shaped insertion on the said torsion spring is arranged in the draw-in groove of air door top fuse link.
Preferably, the side that is connected with air door of said valve body is the up-narrow and down-wide shape of cutting sth. askew.
Preferably, said fuse link is vertically fixed on the inverted U fixing frame of air door top.
Preferably, be evenly equipped with spring clip around the said valve body.
Preferably, offer bolt hole on the said valve body outer ring.
The utility model is simple in structure, is convenient to install, and is tight with the air flue applying, saves material, safe and reliable.In, be in a state of emergency situation too high when the gas flue temperature following time,, air door is tight closure rapidly, and flameproof effect is good.
Description of drawings
Fig. 1 is the plan view of the utility model.
Fig. 2 is the side view of the utility model.
Fig. 3, Fig. 4 are the structural representation of the utility model.
Embodiment
Referring to Fig. 1 or Fig. 3; A kind of flue fire-preventing check valve that the utility model provided comprises valve body 1, and valve body 1 is provided with valve pocket, is provided with air door 2 in the valve pocket; Said valve body 1 is circular; Air door 2 is hinged on the valve body 1 through hinge 3, and the connecting rod in the said hinge 3 is provided with torsion spring 4, and hook-shaped 5 insertion on the said torsion spring 4 is arranged in the draw-in groove of air door 2 top fuse links 6.
Referring to Fig. 2, the side that said valve body 1 is connected with air door 2 is the up-narrow and down-wide shape of cutting sth. askew.
Said fuse link 6 is vertically fixed on the inverted U fixing frame 7 of air door 2 tops.
Preferably, be evenly equipped with spring clip 8 around the said valve body 1.
Above-mentioned flue fire-preventing check valve is contained in when using on the flue, referring to Fig. 3, can fire-preventing check valve be installed in the hole of offering on the flue surface; Through spring clip 8 chuckings; Valve body 1 outer periphery offers bolt hole 9, can increase its stability through bolton on the flue surface.
Referring to Fig. 4, when flue gas when kitchen ventilator gets into gas flue, air door 2 is opened; When no flue gas, air door 2 is closed condition through self gravitation and valve body 1, because it connects the design that side is the up-narrow and down-wide shape of cutting sth. askew, makes air door 2 through the barodynamics principle, fits more tight with valve body 1.
When fire occurring; When a large amount of high-temperature gases poured in gas flue, the temperature in the gas flue was higher, and fuse link 6 is broken off; Torsion spring 4 wraps the connecting rod rotation in the page or leaf 3; On the torsion spring 4 hook-shaped 5 is tight against air door 2 on valve body 1, thereby the high-temperature gas in the gas flue is cut off, and avoided it to get into through gas flue and used in the users home of range hood.
Claims (5)
1. a flue fire-preventing check valve comprises valve body; Valve body is provided with valve pocket; Be provided with air door in the valve pocket, it is characterized in that: said valve body is for circular, and air door is hinged on the valve body through hinge; Connecting rod in the said hinge is provided with torsion spring, and hook-shaped insertion on the said torsion spring is arranged in the draw-in groove of air door top fuse link.
2. flue fire-preventing check valve according to claim 1 is characterized in that: the side that said valve body is connected with air door is the up-narrow and down-wide shape of cutting sth. askew.
3. flue fire-preventing check valve according to claim 1 is characterized in that: said fuse link is vertically fixed on the inverted U fixing frame of air door top.
4. flue fire-preventing check valve according to claim 1 is characterized in that: be evenly equipped with spring clip around the said valve body.
5. flue fire-preventing check valve according to claim 1 is characterized in that: said valve body offers bolt hole on the outer ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202694659U CN202165652U (en) | 2011-07-27 | 2011-07-27 | Fireproof check valve for smoke flue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202694659U CN202165652U (en) | 2011-07-27 | 2011-07-27 | Fireproof check valve for smoke flue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202165652U true CN202165652U (en) | 2012-03-14 |
Family
ID=45801477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202694659U Expired - Fee Related CN202165652U (en) | 2011-07-27 | 2011-07-27 | Fireproof check valve for smoke flue |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202165652U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107525116A (en) * | 2017-10-11 | 2017-12-29 | 杭州老板电器股份有限公司 | Fire-preventing check valve and central cooking fume control equipment |
-
2011
- 2011-07-27 CN CN2011202694659U patent/CN202165652U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107525116A (en) * | 2017-10-11 | 2017-12-29 | 杭州老板电器股份有限公司 | Fire-preventing check valve and central cooking fume control equipment |
| CN107525116B (en) * | 2017-10-11 | 2024-03-22 | 杭州老板电器股份有限公司 | Fireproof check valve and central oil smoke purifying equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120314 Termination date: 20130727 |