CN201310904Y - Smoke-exhaust flue non-return valve with pull-in device - Google Patents
Smoke-exhaust flue non-return valve with pull-in device Download PDFInfo
- Publication number
- CN201310904Y CN201310904Y CNU2008201386682U CN200820138668U CN201310904Y CN 201310904 Y CN201310904 Y CN 201310904Y CN U2008201386682 U CNU2008201386682 U CN U2008201386682U CN 200820138668 U CN200820138668 U CN 200820138668U CN 201310904 Y CN201310904 Y CN 201310904Y
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- valve block
- ring
- valve
- valve plate
- return
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Abstract
The utility model relates to a smoke-exhaust flue non-return valve with a pull-in device, comprising a cylinder body, an oil smoke passage and a valve plate, wherein the oil smoke passage and the valve plate are arranged in the cylinder body. The smoke-exhaust flue non-return valve is characterized in that the valve plate is rotatably connected to the shell wall of the oil smoke passage through a valve plate rotating shaft, and the axial line of the valve plate rotating shaft deviates from the center of gravity of the valve plate; a sealing retaining ring and an outer sealing retaining ring are fixed on the shell wall of the oil smoke passage and respectively arranged at the inner side and the outer side of the valve sheet; and a pull-in device which can enable the valve plate to automatically pull in with the sealing retaining ring and the outer sealing retaining ring without the action of an external force is fixed on the edge of the valve plate or one face of the sealing retaining ring corresponding to the valve plate or one face of the outer sealing retaining ring corresponding to the valve plate. The utility model has good sealing performance and favorable non-return effect and can effectively prevent smoke from back flowing.
Description
Technical field
The utility model relates to the band adhesive device exhaust gas flue check (non-return) valve that uses in public flue in a kind of kitchen and the toilet exhaust duct.
Background technology
The exhaust gas flue check (non-return) valve is mounted in a kind of device in residential building kitchen flue gas road and the toilet exhaust duct, is used for preventing to be discharged into the flue gas adverse current of gas flue.Existing exhaust gas flue check (non-return) valve comprises cylindrical shell, is arranged on oil smoke passage and valve block in the cylindrical shell, the two ends of oil smoke passage are respectively air inlet, air outlet, valve block is rotatably connected on the shell wall of air outlet oral area by the valve block rotating shaft, and the axial line of valve block rotating shaft departs from the center of gravity of valve block; The air outlet edge is fixed with Sealing shield ring and external seal back-up ring, and they are located at the inside and outside both sides of valve block respectively.When the valve block of above-mentioned check valve for flue is closed, dependence be that self gravity covers the port at air outlet, the sealing between itself and the Sealing shield ring is poor, smog can occur and pour in down a chimney phenomenon, non-return weak effect.
Summary of the invention
The purpose of this utility model provides a kind of good airproof performance, non-return effective exhaust gas flue check (non-return) valve.
For achieving the above object, the utility model is by the following technical solutions:
A kind of band adhesive device exhaust gas flue check (non-return) valve described in the utility model, comprise cylindrical shell, be arranged on oil smoke passage and valve block in the cylindrical shell, it is characterized in that: valve block is rotatably connected on the shell wall of oil smoke passage by the valve block rotating shaft, and the axial line of valve block rotating shaft departs from the center of gravity of valve block; Be fixed with Sealing shield ring and external seal back-up ring on the shell wall of oil smoke passage, they are located at the inside and outside both sides of valve block respectively; On the edge of valve block, perhaps on the face that Sealing shield ring is corresponding with valve block, perhaps on the face that the external seal back-up ring is corresponding with valve block, be fixed with and make the valve block can be automatically under no external force effect and the adhesive device of Sealing shield ring, the automatic adhesive of external seal back-up ring.
Described external seal back-up ring is fixed with magnet for sense magnetic sheet metal on the edge of valve block, magnet is corresponding with the external seal back-up ring.
Described valve block is sense magnetic sheet metal, is fixed with magnet on the external seal back-up ring face corresponding with valve block.
Described valve block is sense magnetic sheet metal, is fixed with magnet on the Sealing shield ring face corresponding with valve block.
The axial line of described valve block rotating shaft and horizontal plane intersect, and Sealing shield ring, external seal back-up ring are located at the both sides of valve block rotating shaft respectively.
The utility model is provided with and can makes the valve block can be automatically under no external force effect and the adhesive device of Sealing shield ring, the automatic adhesive of external seal back-up ring.By the adhesive device, valve block is pull-in on Sealing shield ring or the external seal back-up ring, under no external force effect, can not open, and good airproof performance can prevent effectively that smog from pouring in down a chimney, and is non-return effective.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of the utility model;
Fig. 2 is the right view of Fig. 1;
Fig. 3 is the structural representation of the another kind of embodiment of the utility model;
Working state schematic representation when Fig. 4 discharges fume for the utility model.
The specific embodiment
The utility model will be further described below in conjunction with the drawings and specific embodiments.
A kind of band adhesive device exhaust gas flue check (non-return) valve as shown in Figure 1 and Figure 2, comprises cylindrical shell 1, is arranged on oil smoke passage 2 and valve block 4 in the cylindrical shell 1.Valve block 4 is rotatably connected on the shell wall of oil smoke passage 2 by valve block rotating shaft 5, and the axial line of valve block rotating shaft 5 departs from the center of gravity of valve block 4; Be fixed with Sealing shield ring 3 and external seal back-up ring 6 on the shell wall of oil smoke passage 2, they are located at the inside and outside both sides of valve block 4 respectively.
For making the valve block 4 can be automatically under no external force effect and Sealing shield ring 3, the 6 automatic adhesives of external seal back-up ring, be fixed with the adhesive device on the edge of valve block 4 or on the corresponding face of Sealing shield ring 3 and valve block 4 or on the corresponding face of external seal back-up ring 6 and valve block 4, its frame mode is as follows: can be fixed with magnet 7 at the middle part at valve block 4 edges, magnet 7 is corresponding with external seal back-up ring 6, and external seal back-up ring 6 adopts sense magnetic sheet metal; Also can be that valve block 4 adopts sense magnetic sheet metals, fixed magnet on the face that Sealing shield ring 6 and valve block 4 are corresponding outside, perhaps fixed magnet on the corresponding face of Sealing shield ring 3 and valve block 4.
Certainly, the adhesive device also can adopt other modes except above-mentioned several structure set-up modes, as long as can guarantee that valve block 4 can be automatically under no external force effect and Sealing shield ring 3, the 6 automatic adhesives of external seal back-up ring.
Above-mentioned magnet thickness is as far as possible little, in order to avoid influence the sealing of check (non-return) valve; The magnetic force of magnet is also as far as possible little, as long as can be with valve block 5 adhesives to external seal back-up ring 6, in order to avoid excessive because of magnetic force, the wind-force of discharging fume during smoke evacuation can not be pushed valve block open and have influence on the discharging oil smoke.
As another kind of embodiment of the present utility model, as shown in Figure 3, the axial line of described valve block rotating shaft 5 is vertical with horizontal plane, and Sealing shield ring 3, external seal back-up ring 6 are located at the and arranged on left and right sides of valve block rotating shaft 5 respectively.
During smoke discharging, valve block 4 does not cover on oil smoke passage 2 air inlets under self gravitation effect and magneticaction, is in closure state, if no external force effect can not opened, good airproof performance can prevent effectively that flue gas from pouring in down a chimney, and is non-return effective.During smoke discharging, the thrust of the wind that valve block 4 is discharged and be in open mode, as shown in Figure 4, oil smoke is discharged into vertical flue by oil smoke passage 2, and then rises and discharge.Because valve block 4 is installed in the oral area of oil smoke passage 2, the valve block 4 that is in open mode so can not hinder the unimpeded of vertical flue yet.
Claims (5)
1, a kind of band adhesive device exhaust gas flue check (non-return) valve, comprise cylindrical shell (1), be arranged on oil smoke passage (2) and valve block (4) in the cylindrical shell (1), it is characterized in that: valve block (4) is rotatably connected on the shell wall of oil smoke passage (2) by valve block rotating shaft (5), and the axial line of valve block rotating shaft (5) departs from the center of gravity of valve block (4); Be fixed with Sealing shield ring (3) and external seal back-up ring (6) on the shell wall of oil smoke passage (2), they are located at the inside and outside both sides of valve block (4) respectively; On the edge of valve block (4), perhaps on the face that Sealing shield ring (3) is corresponding with valve block (4), perhaps on the face that external seal back-up ring (6) is corresponding with valve block (4), be fixed with and make the valve block (4) can be automatically under no external force effect and the adhesive device of Sealing shield ring (3), the automatic adhesive of external seal back-up ring (6).
2, band adhesive device exhaust gas flue check (non-return) valve according to claim 1 is characterized in that: described external seal back-up ring (6) is fixed with magnet (7) for sense magnetic sheet metal on the edge of valve block (4), magnet (7) is corresponding with external seal back-up ring (6).
3, band adhesive device exhaust gas flue check (non-return) valve according to claim 1 is characterized in that: described valve block (4) is sense magnetic sheet metal, is fixed with magnet on external seal back-up ring (6) face corresponding with valve block (4).
4, band adhesive device exhaust gas flue check (non-return) valve according to claim 1 is characterized in that: described valve block (4) is sense magnetic sheet metal, is fixed with magnet on Sealing shield ring (3) face corresponding with valve block (4).
5, according to claim 2 or 3 or 4 described band adhesive device exhaust gas flue check (non-return) valves, it is characterized in that: the axial line of described valve block rotating shaft (5) and horizontal plane intersect, and Sealing shield ring (3), external seal back-up ring (6) are located at the both sides of valve block rotating shaft (5) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201386682U CN201310904Y (en) | 2008-10-31 | 2008-10-31 | Smoke-exhaust flue non-return valve with pull-in device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201386682U CN201310904Y (en) | 2008-10-31 | 2008-10-31 | Smoke-exhaust flue non-return valve with pull-in device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201310904Y true CN201310904Y (en) | 2009-09-16 |
Family
ID=41108156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201386682U Expired - Fee Related CN201310904Y (en) | 2008-10-31 | 2008-10-31 | Smoke-exhaust flue non-return valve with pull-in device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201310904Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110285437A (en) * | 2019-05-28 | 2019-09-27 | 淮南川石化工科技有限公司 | A kind of Industrial Boiler |
-
2008
- 2008-10-31 CN CNU2008201386682U patent/CN201310904Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110285437A (en) * | 2019-05-28 | 2019-09-27 | 淮南川石化工科技有限公司 | A kind of Industrial Boiler |
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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: 20090916 Termination date: 20111031 |