CN204828810U - Flue check valve case - Google Patents
Flue check valve case Download PDFInfo
- Publication number
- CN204828810U CN204828810U CN201520513347.6U CN201520513347U CN204828810U CN 204828810 U CN204828810 U CN 204828810U CN 201520513347 U CN201520513347 U CN 201520513347U CN 204828810 U CN204828810 U CN 204828810U
- Authority
- CN
- China
- Prior art keywords
- diameter
- closure
- flue
- opening
- check 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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- Mechanically-Actuated Valves (AREA)
- Check Valves (AREA)
Abstract
The utility model discloses a flue check valve case of public flue or exhaust passage. This case comprises the opening of a body structure, guide part, transition portion and closure portion, and wherein the opening lies in the top of guide part, and closure is connected in the bottom of guide part through transition portion, closure portion comprises two laminatings closed piece together, transition portion is whole to be the gradual change circular arc cylindric that the upper end opening is big, the lower extreme opening is little, and its the diameter of wide department be greater than the diameter of opening and guide part, transition portion also can comprise the upper segment and the hypomere of a body coupling, and upper segment and hypomere are the gradual change circular arc cylindric that the upper end opening is big, the lower extreme opening is little, and the upper segment the diameter of wide department be greater than the diameter of opening and guide part. The utility model has the advantages of simple structure, simple to operate, easily maintain that it influences and lead to unable work to wash, be difficult for receiving the greasy dirt to form a scab.
Description
Technical field
The utility model relates to a kind of spool for common flue or air outlet flue, especially a kind of check valve for flue spool.
Background technique
Existing check valve for flue utilizes the material such as metal, plastics to be produced into cover plate structure, by rotating shaft, cover plate is connected with valve body, this structure utilizes aerodynamics and mechanical lever principle design to form, usual cover plate and sealing strip also need to be designed to certain inclination, spirit level need be utilized to have measured level when installation, check valve for flue is arranged in desirable horizontal extent, otherwise is difficult to reach sealing effect.
As Chinese utility model patent 201120394190.1 discloses one " magnetic check valve ", its valve body and non-return impeller are flexibly connected, non-return impeller is coated with seal membrane packing ring, the inner chamber of valve body is provided with column, column is provided with screw, the groove of non-return impeller is built-in with magnet, and the rotating shaft that the non-return impeller of two semicircle impeller symmetry formations is consisted of two lug is rotated in the inner chamber of valve body.But when in flue, air-flow is below certain flow, the screw in valve body is together with the magnet absorption on non-return impeller, and valve channel is closed; Flue gas stream reaches after more than certain flow, and the screw in valve body is separated with the magnet on non-return impeller, and valve channel is opened.This magnetic check valve is by the closed of non-return impeller or open the combination realizing point and point or point and face between non-return impeller and valve body, thus reaches to common flue smoke evacuation and stop the object that common flue oil smoke pours in down a chimney.This body structure surface is seen be the problem solving smoke evacuation and prevent oil smoke from pouring in down a chimney, but along with the increase of service time, oil smoke can form greasy dirt incrustation gradually on the parts such as valve inner, non-return impeller, lug, shrinkage pool, lug and shrinkage pool form greasy dirt form a scab, lug is very easily stuck, and causes non-return impeller to rotate and can not open; Seal membrane packing ring on non-return impeller forms greasy dirt incrustation, then the sealing surface between non-return impeller and valve body produces space, causes safety check to lose efficacy.This safety check is installed and need be installed in strict accordance with certain level direction simultaneously, and fitting operation is more complicated, if substantially horizontal is not controlled well, then safety check cannot normally work.
Summary of the invention
Technical problem to be solved in the utility model is to provide that a kind of structure is simple, easy for installation, easy care cleaning, be not subject to greasy dirt incrustation impact and cause the check valve for flue spool that cannot work.
The technical scheme in the invention for solving the above technical problem is: this spool is made up of the opening portion of integrative-structure, guide portion, transition part and closure, and wherein opening part is in the top of guide portion, and closure is connected to the bottom of guide portion by transition part; The close out sheet that closure is fit together by two panels forms.
Transition part entirety described in the utility model is in the gradual change circular arc tubular that upper end open is large, lower ending opening is little, and the diameter of its widest position is greater than the diameter of opening portion and guide portion.
Transition part described in the utility model is made up of the epimere integrally connected and hypomere, and epimere and hypomere are the gradual change circular arc tubular that upper end open is large, lower ending opening is little, and the diameter of epimere the widest position is greater than the diameter of opening portion and guide portion.
Closure described in the utility model by two panels undulate and the close out sheet fit together form.
Closure described in the utility model can be one or more.
The width of closure described in the utility model is identical with the diameter of transition part the widest position.
The width of closure described in the utility model is greater than the diameter of transition part the widest position.
The utility model compared with prior art, has following beneficial effect: this check valve for flue valve core structure is simple, without rotating shaft; Easy for installation, without the need to using leveling instrument during installation; Its material adopts silica gel, latex or other beformable body materials, opening or closing by closure, control opening or closing of check valve for flue, the two panels close out sheet of closure fits tightly when closure is closed, the structure that employing face contacts with face, therefore be not subject to the impact of greasy dirt incrustation and cause closed tight, can Long-Time Service; This spool and check valve for flue valve body are split-type structural, when maintenance clean or replacing, are removed by spool from valve body, very convenient; The diameter of this spool transition part the widest position is greater than the diameter of opening portion and diversion division, and the width of closure is more than or equal to the diameter of transition part the widest position, the shape that overall formation is up-small and down-big, can further improve exhaust smoke level and flue gas velocity.
Accompanying drawing explanation
Fig. 1 is the plan view of the utility model embodiment 1.
Fig. 2 is the side view of the utility model embodiment 1.
Fig. 3 is the using state figure of the utility model embodiment 1.
Fig. 4 is the plan view of the utility model embodiment 2.
Fig. 5 is the side view of the utility model embodiment 2.
Embodiment
Embodiment 1:
See Fig. 1 and Fig. 2, the material of the present embodiment is silica gel, and be made up of the opening portion 1 of integrative-structure, guide portion 2, transition part 3 and closure 4, wherein opening portion 1 is positioned at the top of guide portion 2, and closure 4 is connected to the bottom of guide portion 2 by transition part 3.Transition part 3 entirety is in the gradual change circular arc tubular that upper end open is large, lower ending opening is little, and the diameter of its widest position is greater than the diameter of opening portion 1 and guide portion 2.Closure 4 by two panels undulate and the close out sheet 41 fit together form, the width of closure 4 is identical with the diameter of transition part 3 the widest position.
The width of closure 4 also can be greater than the diameter of transition part 3 the widest position.
During use, see Fig. 3, spool is placed in the valve body 5 of check valve for flue.When in flue during airless, two panels close out sheet 41 fits tightly, and closure 4 is in hermetically closing state, the pathway closure of check valve for flue, and the oil smoke in common flue cannot pour in down a chimney; When there being air-flow in flue, under the effect of air-flow, two panels close out sheet 41 is opened, and closure 4 is in open mode, and the passage of check valve for flue is opened, and oil smoke is drained into common flue.
Embodiment 2:
See Fig. 4 and Fig. 5, the material of the present embodiment is silica gel, and be made up of the opening portion 1 of integrative-structure, guide portion 2, transition part 3 and closure 4, wherein opening portion 1 is positioned at the top of diversion division 2, and closure 4 is connected to the bottom of diversion division 2 by transition part 3.Transition part 3 is made up of the epimere 31 integrally connected and hypomere 32, and epimere 31 and hypomere 32 are the gradual change circular arc tubular that upper end open is large, lower ending opening is little, and the diameter of epimere 31 the widest position is greater than the diameter of opening portion 1 and guide portion 2.Closure 4 by two panels undulate and the close out sheet 41 fit together form, the width of closure 4 is identical with the diameter of epimere 31 the widest position.
The width of closure 4 also can be greater than the diameter of epimere 31 the widest position.
The using method of the present embodiment is identical with embodiment 1.
In the utility model, closure 4 can be one or more, and closure 4 can be the shape such as fold-line-shaped, lineal shape.
The utility model also can adopt latex, rubber or other there is the plastic cement beformable body material of favorable elasticity.
Claims (7)
1. a check valve for flue spool, it is characterized in that: be made up of the opening portion (1) of integrative-structure, guide portion (2), transition part (3) and closure (4), wherein opening portion (1) is positioned at the top of guide portion (2), and closure (4) is connected to the bottom of guide portion (2) by transition part (3); The close out sheet (41) that closure (4) is fit together by two panels forms.
2. check valve for flue spool according to claim 1, it is characterized in that: described transition part (3) entirety is in the gradual change circular arc tubular that upper end open is large, lower ending opening is little, and the diameter of its widest position is greater than the diameter of opening portion (1) and guide portion (2).
3. check valve for flue spool according to claim 1, it is characterized in that: described transition part (3) is made up of the epimere integrally connected (31) and hypomere (32), epimere (31) and hypomere (32) are the gradual change circular arc tubular that upper end open is large, lower ending opening is little, and the diameter of epimere (31) the widest position is greater than the diameter of opening portion (1) and guide portion (2).
4. check valve for flue spool according to claim 1, is characterized in that: described closure (4) by two panels undulate and the close out sheet fit together (41) form.
5. the check valve for flue spool according to claim 1 or 4, is characterized in that: described closure (4) can be one or more.
6. the check valve for flue spool according to claim 1 or 2 or 3 or 4, is characterized in that: the width of described closure (4) is identical with the diameter of transition part (3) the widest position.
7. the check valve for flue spool according to claim 1 or 2 or 3 or 4, is characterized in that: the width of described closure (4) is greater than the diameter of transition part (3) the widest position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520513347.6U CN204828810U (en) | 2015-07-03 | 2015-07-03 | Flue check valve case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520513347.6U CN204828810U (en) | 2015-07-03 | 2015-07-03 | Flue check valve case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204828810U true CN204828810U (en) | 2015-12-02 |
Family
ID=54686413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520513347.6U Expired - Fee Related CN204828810U (en) | 2015-07-03 | 2015-07-03 | Flue check valve case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204828810U (en) |
-
2015
- 2015-07-03 CN CN201520513347.6U patent/CN204828810U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151202 Termination date: 20180703 |