CN201041247Y - Flue fire-proof check valve - Google Patents
Flue fire-proof check valve Download PDFInfo
- Publication number
- CN201041247Y CN201041247Y CNU2007200236630U CN200720023663U CN201041247Y CN 201041247 Y CN201041247 Y CN 201041247Y CN U2007200236630 U CNU2007200236630 U CN U2007200236630U CN 200720023663 U CN200720023663 U CN 200720023663U CN 201041247 Y CN201041247 Y CN 201041247Y
- Authority
- CN
- China
- Prior art keywords
- hole
- flue
- check valve
- rotating shaft
- air door
- 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.)
- Ceased
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Abstract
The utility model relates to an accessory combined with a flue together, in particular to a connector connected with the flue. The flue fire-proof check valve comprises a casing body, a inner cavity through hole is arranged in the middle of the casing body, an air door is arranged in the inner cavity through hole, both sides of the air door are connected on the inner cavity through hole through a rotating axle, a fixing seat and a back blocking strip are also arranged on the back surface of the casing body, one end of the back blocking strip is hinged through the fixing seat, the other end is connected with a supporting piece through a fusing piece, and the supporting piece is fixed and connected with the fixing seat. The utility model not only can prevent flue gas from inversely pouring, but also can cut off a fire source, and the utility mode has very good fire protection function, simple structure, and inexpensive cost.
Description
Technical field
The utility model relates to a kind of accessory that combines with flue, relates in particular to a kind of joint that is connected with flue.
Background technique
Mostly adopt public draught flue in the present residential building, the gas that the range hood of every family or ventilating fan are discharged enters public air outlet flue by indoor pipeline, for preventing in the gas smoke blowing return chamber in the common exhaust pipe road, in indoor exhaust ports safety check is installed, can effectively prevents the refluence of flue gas.But it does not possess fire-proof function, and pyrotechnics can enter shared draught flue by safety check during breaking out of fire, makes fire spread to each floor.
Safety check of the prior art also has the device that adopts anti-string fire, Chinese patent as notice of authorization on the 5th October in 2005, notification number is CN2731289Y, it discloses the multi-functional check valve of the shared draught flue of a kind of high-rise building, comprise guide pipe and panel, on panel, be provided with inlet hole and be provided with intake interface in its outside, inwall bilateral symmetry at guide pipe is provided with chute, the last convex edge of both sides chute connects into closed epirelief frame, on the epirelief frame, erect the fire prevention cover plate is arranged, the fire prevention cover plate is fixed on the guide tube wall with fusible material, and this technology has good flameproof effect, but its cost is higher and structure is complicated.
The model utility content
The purpose of this utility model is to overcome above-mentioned defective, and a kind of flue fire-preventing check valve simple in structure, with low cost is provided, and it can prevent that not only flue gas from pouring in down a chimney, and can cut off burning things which may cause a fire disaster, has good fire-proof function.
For achieving the above object, the utility model adopts following technological scheme: it comprises housing, the housing neutral position is provided with intracavity through hole, be provided with air door in the intracavity through hole, the both sides of air door are connected on the intracavity through hole by rotating shaft, also are provided with fixed base and check blend stop on the back side of shell, and an end of check blend stop is hinged by fixed base, the other end is connected with support plate by fuse link, and support plate and fixed base are affixed.
The check blend stop is leptosomatic strip shape body, and the position of check blend stop is higher than the position of rotating shaft, and when proper functioning, air door can unrestrictedly be the unlatching shape like this; Fuse link is that temperature sensing material is made, and normal temperature is solid structure down, and when temperature reached the melting point of fuse link, fuse link melted; Because the check blend stop is connected by fuse link with support plate, when breaking out of fire, the temperature of pyrotechnics reaches the fusing-off temperature of fuse link, fuse link fusing, check blend stop and support plate disconnect, because check blend stop one end and fixed base are hinged, the other end rotates the whereabouts under the effect of gravity, so air door can be tightened, stop the intensity of a fire further to spread.The inner periphery of intracavity through hole is provided with catch, and catch is arranged on the top of rotating shaft or the below of rotating shaft; Also can all be provided with catch in the above and below of rotating shaft, the catch of above and below is with respect to the front and back position difference of air door, if the catch that promptly is provided with above rotating shaft is positioned at the place ahead of air door, the catch that then is provided with below rotating shaft is positioned at the rear of air door.The catch that is provided with can limit air door and do the whole circumference rotation, promptly can only carry out 90 ° of rotations towards a direction.The periphery of housing can be provided with fixed hole, housing can be fixed on the flue with fixing device.
Rotating shaft operated by rotary motion of the present utility model is in position on the upper side, intracavity through hole center, and rotating shaft is arranged on the left and right sides of air door, forms eccentric structure; Also can pin-joint piece be set at the upside of air door, pin-joint piece and intracavity through hole are hinged, and catch is arranged on the front side of air door.
The utility model can prevent that not only flue gas from pouring in down a chimney, and can cut off burning things which may cause a fire disaster, has good fire-proof function, and is simple in structure, with low cost.
Description of drawings
Fig. 1 is the utility model embodiment 1 a form structure rear side schematic representation;
Fig. 2 is the utility model embodiment 2 a form structure rear side schematic representation.
Embodiment
As shown in Figure 1, the utility model comprises housing 1, the periphery of housing 1 is provided with fixed hole 3, and housing 1 neutral position is provided with intracavity through hole, is provided with air door 2 in the intracavity through hole, the both sides of air door 2 are connected on the intracavity through hole by rotating shaft 7, rotating shaft 7 is provided with the top at intracavity through hole center, also is provided with fixed base 6 and check blend stop 4 on housing 1 back side, and an end of check blend stop 4 is hinged by fixed base 6, the other end is connected with support plate 5 by fuse link, and support plate 5 is affixed with fixed base 6.
The position of check blend stop 4 is higher than the position of rotating shaft 7, and check blend stop 4 is leptosomatic strip shape body.The inner periphery of intracavity through hole is provided with catch 8, and the above and below of rotating shaft 7 all is provided with catch 8, and the catch 8 of above and below is with respect to the front and back position difference of air door 2.
Be provided with pin-joint piece 9 above air door 2, pin-joint piece 9 is hinged with intracavity through hole, and catch 8 is arranged on the front side of air door 2.
Claims (7)
1. flue fire-preventing check valve, it comprises housing, the housing neutral position is provided with intracavity through hole, be provided with air door in the intracavity through hole, the both sides of air door are connected on the intracavity through hole by rotating shaft, it is characterized in that also being provided with on the back side of shell fixed base and check blend stop, and an end of check blend stop is hinged by fixed base, the other end is connected with support plate by fuse link, and support plate and fixed base are affixed.
2. flue fire-preventing check valve according to claim 1 is characterized in that the position of check blend stop is higher than the position of rotating shaft.
3. flue fire-preventing check valve according to claim 2 is characterized in that the check blend stop is leptosomatic strip shape body.
4. according to claim 1 or 2 or 3 described flue fire-preventing check valves, it is characterized in that the inner periphery of intracavity through hole is provided with catch.
5. flue fire-preventing check valve according to claim 4 is characterized in that catch is arranged on the top of rotating shaft or the below of rotating shaft.
6. flue fire-preventing check valve according to claim 4 is characterized in that the above and below of rotating shaft all is provided with catch, and the catch of above and below is with respect to the front and back position difference of air door.
7. flue fire-preventing check valve according to claim 1 is characterized in that rotating shaft is arranged on the top at intracavity through hole center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200236630U CN201041247Y (en) | 2007-06-15 | 2007-06-15 | Flue fire-proof check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200236630U CN201041247Y (en) | 2007-06-15 | 2007-06-15 | Flue fire-proof check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201041247Y true CN201041247Y (en) | 2008-03-26 |
Family
ID=39252952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200236630U Ceased CN201041247Y (en) | 2007-06-15 | 2007-06-15 | Flue fire-proof check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201041247Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109237503A (en) * | 2018-09-21 | 2019-01-18 | 方政 | A kind of flue lacing film special fixing device |
-
2007
- 2007-06-15 CN CNU2007200236630U patent/CN201041247Y/en not_active Ceased
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109237503A (en) * | 2018-09-21 | 2019-01-18 | 方政 | A kind of flue lacing film special fixing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C35 | Partial or whole invalidation of patent or utility model | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20091228 Decision number of declaring invalidation: 14310 Granted publication date: 20080326 |