CN101598225A - Exhaust check valve - Google Patents
Exhaust check valve Download PDFInfo
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- CN101598225A CN101598225A CNA2009100167210A CN200910016721A CN101598225A CN 101598225 A CN101598225 A CN 101598225A CN A2009100167210 A CNA2009100167210 A CN A2009100167210A CN 200910016721 A CN200910016721 A CN 200910016721A CN 101598225 A CN101598225 A CN 101598225A
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- valve block
- valve
- exhaust outlet
- exhaust
- over flange
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Abstract
The invention discloses a kind of exhaust check valve that is used for the discharging of residential building fume centralized.It comprises shell, is arranged at the oil smoke passage in the shell, the two ends of oil smoke passage have intake grill, exhaust outlet, valve block is set to two and be arranged at the oral area of exhaust outlet, one side valve sheet radial dimension in the horizontal direction is less than opposite side valve block radial dimension in the horizontal direction, be respectively arranged with the valve block rotating shaft on the outer side of each valve block, be rotatably connected with shell, the shaft axis of valve block rotating shaft and horizontal plane intersect obliquely, make the path of valve block when opening or closing shorten, the required time also reduces, and reacts more sensitive; Valve block has limit stoper, makes the valve block also can self-return when maximum opening angle; The oral area of exhaust outlet is provided with annular groove, turns over flange in the edge of valve block is provided with, in turn over flange and can insert in the annular groove; From as can be seen above-mentioned, structure of the present invention is more reasonable, tighter, the anti-smoke blowing gas better effects if of simple in structure, sealing.
Description
Technical field
The present invention relates to a kind of unidirectional venting gas appliance, relate in particular to a kind of prevent the upper and lower floor of high-rise building by the mutual smoke blowing of shared exhaust duct, collaborate, the exhaust check valve of taint of odour.
Background technique
Present all kinds of dwelling houses all use shared main exhaust pipeline, each resident family directly enters main pipe by the suction port on the main pipe with indoor flue gas, concentrate then from the outlet port on roof and discharge, for prevent between the upper and lower floor by the shared mutual smoke blowing of main exhaust pipeline, collaborate, taint of odour, various unidirectional exhaust check valves are developed out.Oil smoke in the kitchen drains in the exhaust check valve by cooker hood, is drained in the vertically shared main exhaust pipeline by exhaust check valve again.Present exhaust check valve comprises shell, is arranged at the oil smoke passage in the shell, and the two end part of described oil smoke passage have intake grill, exhaust outlet respectively, and the exhaust outlet place is provided with valve block, and the rotatingshaft of valve block is divided into substantially horizontal setting and vertical the setting; The rotatingshaft of valve block is that substantially horizontal is when being provided with, under the situation of not discharging fume, the gravity that the weight that is provided with on the dependence valve block is subjected to covers at the exhaust outlet place valve block, but when valve block is opened, the plane at valve block place is in substantially horizontal, the flue gas that the valve block of opening has hindered the vertical shared main exhaust pipeline in building rises, particularly under the situation of the shared vertical main exhaust pipeline of multilayer, the valve block of every layer open has a strong impact on the unimpeded of vertical main exhaust pipeline, makes the deleterious of cooking-fume discharging.The rotatingshaft of valve block is when vertically being provided with, under the state that valve block is opened, valve block is haply perpendicular to horizontal plane, make the resistance minimum of valve block to vertically shared main exhaust pipeline, basically do not influence the unimpeded of shared main exhaust pipeline, as: State Intellectual Property Office is disclosed on October 24th, 2007, design by Shen Huixian, name is called " check valve for flue ", the patent No. is 01108154.6 patent of invention, it comprises shell, be arranged at the oil smoke passage in the shell, the two end part of described oil smoke passage have intake grill respectively, exhaust outlet, valve block is arranged at the oral area of described exhaust outlet, and described valve block and described shell are rotatably connected by the valve block rotating shaft; Described valve block has two working positions, and first working position is that valve block is in closed condition, and this moment, valve block covered the oral area at exhaust outlet; Second working position is that valve block is in open mode, exposes exhaust outlet after this moment, described valve block moved; The plane at described valve block place under second working position haply perpendicular to horizontal plane, the shaft axis of described valve block rotating shaft and horizontal plane intersect obliquely, the shaft axis of described valve block rotating shaft departs from the center of gravity of described valve block, make valve block under the effect of gravity, to close exhaust outlet, promptly in that the time spent can not closed exhaust outlet automatically; Its shortcoming is that the shaft axis of valve block rotating shaft is divided into that a lateral area is big, the less two-part of opposite side area about with valve block, the thrust of the wind that the bigger side of area is discharged during valve block work is rotated to the outside of exhaust outlet greatly, the less side of area is then rotated to the inboard of exhaust outlet, between valve block and the exhaust outlet, because of keeping valve block, needs rotate around the valve block rotating shaft, so must be gapped between the cylindrical of valve block and the endoporus of exhaust outlet, poorly sealed; If end face seal by valve block, the then inner side surface of the valve block that valve block rotating shaft one lateral area is bigger and exhaust outlet exterior edge face sealing, and the outer side surface of the less valve block of valve block rotating shaft opposite side area and the sealing of exhaust outlet interior edge face, because of valve block has thickness, therefore also can not reach desirable sealing effect, particularly after using a period of time, destroy the sealing of opposite side easily because of side bonding greasy dirt, make the sealing problem when valve block is in closed condition be difficult for solving, influence its using effect, flue gas also can take place go into indoor phenomenon by the gap is counter; In addition, even the cooker hood corresponding with valve block is in non-working condition, valve block also may cause collaborating because of opening than air blast (as using other resident family's breaking out of fires of shared main exhaust pipeline) in the shared main exhaust pipeline, smoke blowing; Moreover valve block is subjected to external force and does the time spent, also is easy to make it upset, and screen-like mountain peak dung beetle, mouse just in the inlet chamber, enter for fear of toys such as mouse and screen-like mountain peak dung beetles from the slit of valve block, and filter screen must be installed.For another example, State Intellectual Property Office is disclosed on July 16th, 2008, design by Cao Zhengxiang, the patent No. is 200730175763.0, name is called the design patent of " anti-fire check valve (side direction unlatching) ", the rotatingshaft of its valve block is arranged on the side of valve block, the shaft axis of the rotatingshaft of valve block and horizontal plane intersect obliquely, make valve block under the effect of gravity, to close exhaust outlet, promptly in that the time spent can not closed exhaust outlet automatically, the oral area of exhaust outlet is provided with annular groove, in being provided with, the edge of valve block turns over flange, in turn over flange and can insert in the annular groove, sealing effect is better, its shortcoming is because the rotatingshaft of valve block is arranged on the side of valve block, make that the path of valve block when opening or closing is longer, the required time is also longer, and reaction is sensitive inadequately.
Summary of the invention
The object of the present invention is to provide a kind of good sealing effect, it is shorter that the required time is opened, closed to valve block, sensitive exhaust check valve.
The technological scheme that the present invention is adopted for achieving the above object is:
A kind of exhaust check valve, comprise shell, be arranged at the oil smoke passage in the shell, the two end part of described oil smoke passage have intake grill, exhaust outlet respectively, valve block is arranged at the oral area of described exhaust outlet, and described valve block and described shell are rotatably connected by the valve block rotating shaft, are provided with the limit stoper of restriction valve block opening angle on this exhaust check valve; The oral area of exhaust outlet is provided with annular groove, turns over flange in the edge of valve block is provided with, in turn over flange and can insert in the annular groove; Described valve block has two working positions, and first working position is that valve block is in closed condition, and this moment, valve block covered the oral area at exhaust outlet; Second working position is that valve block is in open mode, exposes exhaust outlet after this moment, described valve block moved; The plane at described valve block place under second working position haply perpendicular to horizontal plane, the shaft axis of described valve block rotating shaft and horizontal plane intersect obliquely, be characterized in: described valve block is two, is respectively arranged with the valve block rotating shaft on the outer side of each valve block; When first working position, the inner side edge of two valve blocks matches.
In order to guarantee that valve block can self-return when the maximum opening angle, on exhaust check valve, be provided with the limit stoper of restriction valve block opening angle, limit stoper of the present invention is the limiting board that is arranged on the shell, makes the maximum opening angle α of valve block for spending less than 85 greater than 30 degree.
Preferred structure as technique scheme, in two valve blocks of the present invention, can be that valve block radial dimension in the horizontal direction in left side is less than right side valve block radial dimension in the horizontal direction, make the return path of left side valve block than the return path of right side valve block shorter and return at first, avoid both returns mutual interference that may bring simultaneously.
As better technological scheme in the above-mentioned preferred structure, the inner side edge of left side of the present invention valve block is provided with groove, turns over flange in the inner side edge of described right side valve block is provided with, in turn over flange and can insert in the groove.
In order to guarantee that further the left side valve block is than right side valve block return at first, make be provided with on the valve block inner side edge of right side in turn over flange and can insert in the groove that is provided with on the valve block inner side edge of left side, the opening angle of described left side valve block is less than the opening angle of right side valve block.
Another kind of preferred structure as technique scheme, in two valve blocks of the present invention, can also be that valve block radial dimension in the horizontal direction in right side is less than left side valve block radial dimension in the horizontal direction, make the return path of right side valve block than the return path of left side valve block shorter and return at first, avoid both returns mutual interference that may bring simultaneously.
As better technological scheme in the above-mentioned preferred structure, the inner side edge of right side of the present invention valve block is provided with groove, turns over flange in the inner side edge of described left side valve block is provided with, in turn over flange and can insert in the groove.
In order to guarantee that further the right side valve block is than left side valve block return at first, turn over flange in being provided with on the valve block inner side edge on the left of making and can insert in the groove that is provided with on the valve block inner side edge of right side, the opening angle of described right side valve block is less than the opening angle of left side valve block.
Owing to take said structure, valve block to be set to two, be respectively arranged with the valve block rotating shaft on the outer side of each valve block, make the path of valve block when opening or closing shorten, the required time also reduces, and reacts more sensitive; The valve block of exhaust check valve has limit stoper, makes the valve block also can self-return when maximum opening angle; And in two valve blocks, one side valve sheet radial dimension in the horizontal direction is less than opposite side valve block radial dimension in the horizontal direction, make the shorter and return at first in the return path of the more larger-size valve block in return path of the valve block that size is less, the mutual interference of avoiding both while returns to bring, also make and on the inner side edge of the less valve block of size, groove to be set, turn over flange on the inner side edge of larger-size valve block, being provided with, the less valve block of size is at first behind the return, turn over flange on the larger-size valve block and can insert in its annular groove, improve sealing effect; Further, the opening angle of the valve block that described size is less can guarantee at first return of the less valve block of size less than the opening angle of larger-size valve block.From as can be seen above-mentioned, structure of the present invention is more reasonable, tighter, the anti-smoke blowing gas better effects if of simple in structure, sealing, and valve block to open, close the required time shorter, be quick on the draw.
Description of drawings
Fig. 1 is that the master of exhaust check valve of the present invention looks cross-sectional schematic.
Fig. 2 is the embodiment's 1 of an exhaust check valve of the present invention schematic top plan view.
Fig. 3 is that schematic representation is looked on the embodiment's 1 of an exhaust check valve of the present invention left side.
Fig. 4 is along the sectional view of A-A line among Fig. 3, Fig. 7, Figure 10.
Fig. 5 is along the sectional view of B-B line among Fig. 3.
Fig. 6 is the embodiment's 2 of an exhaust check valve of the present invention schematic top plan view.
Fig. 7 is that schematic representation is looked on the embodiment's 2 of an exhaust check valve of the present invention left side.
Fig. 8 is along the sectional view of C-C line among Fig. 7.
Fig. 9 is the embodiment's 3 of an exhaust check valve of the present invention schematic top plan view.
Figure 10 is that schematic representation is looked on the embodiment's 3 of an exhaust check valve of the present invention left side.
Figure 11 is along the sectional view of D-D line among Figure 10.
Among the figure: the 1-limiting board, the rotating shaft of 2-valve block, the 3-exhaust outlet, the 4-shell, the 5-intake grill, 6-left side valve block, 7-right side valve block turns over flange in the 8-, the 9-annular groove, the 10-groove turns over flange in the 11-.
Embodiment
Describe the concrete structure of exhaust check valve of the present invention in detail below in conjunction with drawings and the specific embodiments:
Embodiment 1, referring to Fig. 1 to Fig. 5, showed a kind of exhaust check valve among the figure, it comprises shell 4, is arranged at the oil smoke passage in the shell 4, the two end part of oil smoke passage have intake grill 5, exhaust outlet 3 respectively, valve block is arranged at the oral area of exhaust outlet 3, described valve block is divided into symmetrical left side valve block 6 and right side valve block 7, be respectively arranged with valve block rotating shaft 2 on the outer side of left side valve block 6, right side valve block 7, be rotatably connected by valve block rotating shaft 2 with shell 4, the shaft axis of valve block rotating shaft 2 and horizontal plane intersect obliquely; Be provided with the limiting board 1 of restriction valve block opening angle on the shell 4 of this exhaust check valve, making the maximum opening angle α of valve block is 30 degree; The oral area of exhaust outlet 3 is provided with annular groove 9, turns over flange 8 in the edge of valve block is provided with, in turn over flange 8 and can insert in the annular groove 9; Described valve block has two working positions, and first working position is that valve block is in closed condition, and this moment, valve block covered the oral area at exhaust outlet 3; Second working position is that valve block is in open mode, exposes exhaust outlet 3 after this moment, described valve block moved; Haply perpendicular to horizontal plane, when first working position, the inner side edge of two valve blocks matches under second working position on the plane at described valve block place.
More than cited mode of execution only for the usefulness of understanding the present invention; be not to be qualification to technological scheme described in the invention; the those of ordinary skill in relevant field; on the basis of the described technological scheme of claim; can also make multiple variation or distortion, variation that all are equal to or distortion all should be encompassed within the claim protection domain of the present invention.
Claims (8)
1, a kind of exhaust check valve, comprise shell, be arranged at the oil smoke passage in the shell, the two end part of described oil smoke passage have intake grill, exhaust outlet respectively, valve block is arranged at the oral area of described exhaust outlet, and described valve block and described shell are rotatably connected by the valve block rotating shaft, are provided with the limit stoper of restriction valve block opening angle on this exhaust check valve; The oral area of exhaust outlet is provided with annular groove, turns over flange in the edge of valve block is provided with, in turn over flange and can insert in the annular groove; Described valve block has two working positions, and first working position is that valve block is in closed condition, and this moment, valve block covered the oral area at exhaust outlet; Second working position is that valve block is in open mode, exposes exhaust outlet after this moment, described valve block moved; The plane at described valve block place under second working position haply perpendicular to horizontal plane, the shaft axis of described valve block rotating shaft and horizontal plane intersect obliquely, it is characterized in that: described valve block is two, is respectively arranged with the valve block rotating shaft on the outer side of each valve block; When first working position, the inner side edge of two valve blocks matches.
2, exhaust check valve according to claim 1 is characterized in that: described limit stoper is the limiting board that is arranged on the shell, makes the maximum opening angle α of valve block for spending less than 85 greater than 30 degree.
3, exhaust check valve according to claim 1 and 2 is characterized in that: in described two valve blocks, valve block radial dimension in the horizontal direction in left side is less than right side valve block radial dimension in the horizontal direction.
4, exhaust check valve according to claim 3 is characterized in that: the inner side edge of described left side valve block is provided with groove, turns over flange in the inner side edge of described right side valve block is provided with, in turn over flange and can insert in the groove.
5, exhaust check valve according to claim 4 is characterized in that: the opening angle of described left side valve block is less than the opening angle of right side valve block.
6, exhaust check valve according to claim 1 and 2 is characterized in that: in described two valve blocks, valve block radial dimension in the horizontal direction in right side is less than left side valve block radial dimension in the horizontal direction.
7, exhaust check valve according to claim 6 is characterized in that: the inner side edge of described right side valve block is provided with groove, turns over flange in the inner side edge of described left side valve block is provided with, in turn over flange and can insert in the groove.
8, exhaust check valve according to claim 7 is characterized in that: the opening angle of described right side valve block is less than the opening angle of left side valve block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100167210A CN101598225A (en) | 2009-07-06 | 2009-07-06 | Exhaust check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100167210A CN101598225A (en) | 2009-07-06 | 2009-07-06 | Exhaust check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101598225A true CN101598225A (en) | 2009-12-09 |
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ID=41419770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009100167210A Pending CN101598225A (en) | 2009-07-06 | 2009-07-06 | Exhaust check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101598225A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116374A (en) * | 2011-03-08 | 2011-07-06 | 张忠 | Method using vanes to discharge flue gas and flue gas drain valve |
| WO2015003337A1 (en) * | 2013-07-10 | 2015-01-15 | Nie Pingsheng | Bubble pipe |
| CN106885421A (en) * | 2017-03-31 | 2017-06-23 | 青岛海尔股份有限公司 | The air-cooled control method of wind cooling refrigerator |
| CN107062769A (en) * | 2017-03-31 | 2017-08-18 | 青岛海尔股份有限公司 | Wind cooling refrigerator |
| CN108167482A (en) * | 2018-01-18 | 2018-06-15 | 深圳市万居科技股份有限公司 | A kind of fire-preventing check valve |
-
2009
- 2009-07-06 CN CNA2009100167210A patent/CN101598225A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116374A (en) * | 2011-03-08 | 2011-07-06 | 张忠 | Method using vanes to discharge flue gas and flue gas drain valve |
| CN102116374B (en) * | 2011-03-08 | 2012-09-12 | 张忠 | Method for using vanes to discharge flue gas and flue gas drain valve |
| WO2015003337A1 (en) * | 2013-07-10 | 2015-01-15 | Nie Pingsheng | Bubble pipe |
| CN106885421A (en) * | 2017-03-31 | 2017-06-23 | 青岛海尔股份有限公司 | The air-cooled control method of wind cooling refrigerator |
| CN107062769A (en) * | 2017-03-31 | 2017-08-18 | 青岛海尔股份有限公司 | Wind cooling refrigerator |
| CN108167482A (en) * | 2018-01-18 | 2018-06-15 | 深圳市万居科技股份有限公司 | A kind of fire-preventing check valve |
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| PB01 | Publication | ||
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Open date: 20091209 |