CN2766173Y - Exhaust duct check valve with natural ventilation and speed changing functions - Google Patents
Exhaust duct check valve with natural ventilation and speed changing functions Download PDFInfo
- Publication number
- CN2766173Y CN2766173Y CN 200520019228 CN200520019228U CN2766173Y CN 2766173 Y CN2766173 Y CN 2766173Y CN 200520019228 CN200520019228 CN 200520019228 CN 200520019228 U CN200520019228 U CN 200520019228U CN 2766173 Y CN2766173 Y CN 2766173Y
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- valve body
- air outlet
- exhausting duct
- speed changing
- gravity
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- Expired - Fee Related
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Abstract
The utility model relates to a check value of an air exhausting duct, which is matched with the air exhausting duct to prevent the back flow of the air flow in the air exhausting duct and has a natural ventilating function and a speed changing function. The utility model comprises an interface which is communicated with an air outlet of the air exhausting duct and is sheathed on an air exhausting flexible pipe of a fume exhauster, wherein the interior of the interface is provided with a valve body. An air flow channel in the valve body is a speed changing hole with a big air inlet and a small air outlet, the air outlet of the valve body is provided with a valve sheet which is made of flexible materials and is covered on the end surface of the air outlet of the valve body in a natural drooping shape, and the air outlet is also provided with a grid. The utility model has the advantages that the structure is simple, the cost is low, the installation and the use are convenient, the back flow preventing effect is good, the replacement of the valve sheet and cleanness of the oily soil are convenient, and the utility model is accompanied with a natural ventilating function and a speed changing function.
Description
Technical field:
The utility model relates to a kind of and the supporting use of exhausting duct, and air-flow pours in down a chimney in the exhausting duct to stop, and has the exhausting duct check-valves of gravity-flow ventilation function and speed changing function concurrently.
Background technology:
The present exhausting duct check-valves that uses, it stops the valve block that air-flow pours in down a chimney in the exhausting duct mostly to be steel plate, aluminium sheet or the making of engineering plastics plate, their common ground all is a rigid body, and its weak point is after the valve block adhesion is greasy, is easy to cause valve block and valve body closure not tight; Simultaneously, the fixedly rotating shaft of valve block, no matter be arranged on upper end or the lower end or the middle part of valve block, no matter be the rotating shaft of horizontal direction or the rotating shaft of vertical direction, the structure assembling between itself and axle sleeve and the valve body also is difficult to accomplish do not stay between valve block and the valve body slit; So the air-flow in valve block and the inaccessible complete closure of valve body, exhausting duct is just overflowed from the slit between valve block and the valve body easily, prevents to pour in down a chimney poor effect.So although now a lot of residential building kitchens exhausting duct is equipped with check-valves, though just used fashion can, use after a period of time, be prone to and pour in down a chimney phenomenon.
Summary of the invention:
The purpose of this utility model is to overcome the deficiencies in the prior art and provides a kind of makes valve block with flexible material, utilize valve block two sidewind pressure reduction make valve block can not only be entirely, can also be with the rough greasy valve body of being close to, and the air outlet place at valve body is provided with grid, and air-flow exhausting duct check-valves effective and that have gravity-flow ventilation function and speed changing function concurrently is recharged in blocking-up.
The technical solution of the utility model is: comprise being communicated with the exhaust outlet of exhausting duct and in order to the interface of socket smoke exhaust ventilator discharge hose, in interface, be provided with valve body, air outlet place at valve body is provided with valve block, and valve block is the sagging shape of nature and is arranged on outside the end face of air outlet.Gas channel in the described valve body is the speed change hole that air inlet is big, air-out is young.Described valve block is the making of flexible material, and the appearance and size of valve block is greater than the appearance and size of air outlet end face.The set-up mode of described valve block at the air outlet place of valve body is that valve block leans on the valve block folder to be fixed tightly in the upper end of the air outlet end face of valve body.The end face of the air outlet of described valve body is oblique inward from top to bottom inclined-plane, end face and leave the gap between the valve block of sagging shape naturally.The end face of the air outlet of valve body is oblique outward from top to bottom inclined-plane.The end face of the air outlet of valve body is a vertical plane.The air outlet place of described valve body also is provided with grid.The end face of grid is plane or curved surface.The version of grid is any of vertical bar trellis, horizontal stripe trellis, grid-like, concentric garden trellis.
The utility model good effect is as follows:
1. simple in structure, cheap, installation, easy to use.
2. prevent pouring in down a chimney effective.With do not need two speed change anti-return exhausting ducts with check-valves to be used to play double insurance effect; Be used also can effectively stop with the exhausting duct of other types and pour in down a chimney, especially the exhausting duct that the various meetings of using at present in the society are poured in down a chimney is rectified and improved, and can effectively prevent " pouring in down a chimney ".
3. have gravity-flow ventilation function and speed changing function concurrently.
4. change valve block, cleaning greasy dirt conveniently, and can just clean once for many years.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation on inclined-plane outward, bottom for the utility model valve body air outlet end face.
Fig. 3 is the structural representation of vertical plane for the utility model valve body air outlet end face.
Fig. 4 is provided with the structural representation that end face is the grid on plane for the air outlet place of the utility model valve body.
Fig. 5 is provided with the structural representation that end face is the grid of curved surface for the air outlet place of the utility model valve body.
Fig. 6,7,8,9 is the partial left side view of the air outlet place grid of the utility model Fig. 4, Fig. 5.
The specific embodiment:
As shown in Figure 1, the utility model comprises being arranged on the exhausting duct tube wall of kitchen and is communicated with the exhausting duct exhaust outlet and in order to interface 4, valve body 1, the valve block 2 of socket smoke exhaust ventilator discharge hose, valve body 1 is set in the interface 4, air outlet 5 ends of valve body 1 are provided with valve block 2, and valve block 2 is end face 8 places that the sagging shape of nature covers the air outlet 5 of valve body 1.Gas channel 6 in the valve body 1 be air inlet 7 greatly, speed change hole 6 that air outlet 5 is little.
Described valve block 2 is made for flexible material, and the appearance and size of valve block 2 is greater than the appearance and size of valve body 1 air outlet 5 end faces 8.
The set-up mode of described valve block 2 at air outlet 5 places of valve body 1 is valve block 2 is fixed tightly in the air outlet 5 of valve body 1 by valve block folder 3 upper end.
The end face 8 of the air outlet 5 of described valve body 1 is oblique inward from top to bottom inclined-plane, leaves the gap between the sagging valve block 2 of end face 8 and nature.Owing to leave the gap between the valve block 2 of natural hang and the end face 8 of valve body 1 air outlet 5, formed the condition that realizes the gravity-flow ventilation function.The speed change hole that simultaneously gas channel of valve body 1 is that air inlet is big, air outlet 5 is little makes the utility model also have speed changing function concurrently.
As shown in Figure 2, the end face 8 of the air outlet 5 of described valve body 1 is oblique outward from top to bottom inclined-plane.
As shown in Figure 3, the end face 8 of the air outlet 5 of described valve body 1 is a vertical plane.
Shown in Fig. 4,5,6,7,8,9, also be provided with grid 9 at air outlet 5 places of valve body 1.
As shown in Figure 4, air outlet 5 places of described valve body 1 are provided with the grid 9 that end face is the plane.
As shown in Figure 5, air outlet 5 places of described valve body 1 are provided with the grid 9 that end face is a curved surface.
Shown in Fig. 6,7,8,9, air outlet 5 places of described valve body 1 are provided with the grid 9 that end face is plane or curved surface, and the version of grid 9 is vertical bar trellis, horizontal stripe trellis, grid-like or concentric garden trellis.
Operation principle of the present utility model is: 1. lift when the kitchen cook a meal, smoke exhaust ventilator opens when using, the oil flue waste gas in kitchen blows afloat flexible valve block, waste gas is in air outlet enters exhausting duct.2. when the kitchen smoke exhaust ventilator is stopped using, flexible valve block sagging and and valve body air outlet end face between leave the slit of a ring-type along periphery, following two kinds of situations will appear: if the pressure in A. exhausting duct this moment is greater than the pressure in kitchen, air-flow in the exhausting duct enters interface, desire is poured in down a chimney toward the kitchen by the gap of valve block and valve body air opening end, but because whole valve block also is subjected to the pressure from the exhausting duct air-flow, valve block pressed to and be close to the valve body air opening end, even valve block or valve body air outlet end face all are stained with greasy, because valve block is the cause that flexible material is made, the valve block that is affixed to valve body can become rough curved surface shape and more sealing do not stay the slit, can block the exhausting duct air-flow fully pours in down a chimney toward the kitchen, even stream pressure is big again in the exhausting duct, the static pressure at the air inlet place of valve body still is " O " pressure condition.If when B. the static pressure in the valve block outside was negative pressure, then the gas in the valve body can enter exhausting duct by the slit of valve block and valve body air outlet end face, and the gravity-flow ventilation function is then arranged; If the pressure reduction of valve block two sides more greatly, owing to flexible material is thin and light such as the valve block matter of making of plastic sheeting, cloth, leather etc., will be started the increase slit a little, thereby be strengthened the gravity-flow ventilation function.Should illustrate, architectural feature of the present utility model has just increased a condition that realizes the gravity-flow ventilation function for check-valves, but the equipped the utility model of exhausting duct that is not all kinds can both have the gravity-flow ventilation function, is that the inner structural features of exhausting duct can bring up that static pressure of formation is a negative pressuren zone in the regional area of exhausting duct exhaust outlet because will realize the prerequisite of gravity-flow ventilation function.3. the gas channel of the utility model valve body is that the speed change hole that air inlet is big, air-out is young has speed changing function, such design is to make full use of the unique power source of exhausting duct system, the air-flow that makes smoke exhaust ventilator enter exhausting duct is being accelerated by air-flow dynamic pressure increase after the valve body, flow velocity, and waste gas is successfully up arranged.4. by adjusting valve body gas channel air inlet and the gear ratio of air outlet and the parameter that valve block weight is mated mutually, smoke exhaust ventilator is opened when using, the negative pressure of the top that the valve body air outlet is outer, valve block is suspended near horizontal level, oil flue waste gas is to be blown in the exhausting duct under valve block, oil smoke dirt does not collide valve block, so the few adhesion of valve block is greasy, just cleans or change valve block for many years so can reach.5. the utility model is provided with grid at the air outlet place of valve body, in order that preventing that flexible valve block holds at the air outlet place can't stand big pressure and be pressed in the gas channel, causes the periphery of valve block the slit to occur and influence the anti-function of pouring in down a chimney.Particularly the utility model is used in the kitchen exhausting duct that the various meetings of using at present in the society are poured in down a chimney and rectifies and improves, the setting of this grid is particularly important, because show according to examining report, when the exhausting duct that has uses, the stream pressure in the exhausting duct even greatly to handkerchief more than 300.
Claims (10)
1, a kind of exhausting duct check-valves that has gravity-flow ventilation and speed changing function concurrently, comprise and being communicated with the exhaust outlet of exhausting duct and in order to the interface (4) of socket smoke exhaust ventilator discharge hose, it is characterized in that: in interface (4), be provided with valve body (1), air outlet (5) in valve body (1) locates to be provided with valve block (2), and valve block (2) is the end face (8) that the sagging shape of nature is arranged on the air outlet (5) of valve body (1) and locates.
2, a kind of exhausting duct check-valves that has gravity-flow ventilation and speed changing function concurrently according to claim 1 is characterized in that: the gas channel (6) in the valve body (1) is the speed change hole (6) that air inlet (7) is big, air outlet (5) is little.
3, a kind of exhausting duct check-valves that has gravity-flow ventilation and speed changing function concurrently according to claim 1 and 2, it is characterized in that: described valve block (2) is made for flexible material, and the appearance and size of valve block (2) is greater than the appearance and size of air outlet (5) end face (8) of valve body (1).
4, a kind of exhausting duct check-valves that has gravity-flow ventilation and speed changing function concurrently according to claim 3 is characterized in that: the set-up mode that described valve block (2) is located at the air outlet (5) of valve body (1) is valve block (2) is fixed tightly in air outlet (5) end face (8) of valve body (1) by valve block folder (3) upper end.
5, a kind of exhausting duct check-valves that has gravity-flow ventilation and speed changing function concurrently according to claim 1 is characterized in that: the end face (8) of the air outlet (5) of described valve body (1) is oblique inward inclined-plane from top to bottom, end face (8) and leave the gap between the valve block of sagging shape (2) naturally.
6, a kind of exhausting duct check-valves that has gravity-flow ventilation and speed changing function concurrently according to claim 1 is characterized in that: the end face (8) of the air outlet (5) of valve body (1) is oblique outward from top to bottom inclined-plane.
7, a kind of exhausting duct check-valves that has gravity-flow ventilation and speed changing function concurrently according to claim 1, it is characterized in that: the end face (8) of the air outlet (5) of valve body (1) is a vertical plane.
8, a kind of exhausting duct check-valves that has gravity-flow ventilation and speed changing function concurrently according to claim 1, it is characterized in that: the air outlet (5) in valve body (1) locates also to be provided with grid (9).
9, a kind of exhausting duct check-valves that has gravity-flow ventilation and speed changing function concurrently according to claim 8, it is characterized in that: the end face of grid (9) is any of plane, curved surface.
10, a kind of exhausting duct check-valves that has gravity-flow ventilation and speed changing function concurrently according to claim 9 is characterized in that: the version of grid (9) is any of vertical bar trellis, horizontal stripe trellis, grid-like, concentric garden trellis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520019228 CN2766173Y (en) | 2004-11-19 | 2005-05-09 | Exhaust duct check valve with natural ventilation and speed changing functions |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200420075166 | 2004-11-19 | ||
| CN200420075166.1 | 2004-11-19 | ||
| CN 200520019228 CN2766173Y (en) | 2004-11-19 | 2005-05-09 | Exhaust duct check valve with natural ventilation and speed changing functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2766173Y true CN2766173Y (en) | 2006-03-22 |
Family
ID=36606835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520019228 Expired - Fee Related CN2766173Y (en) | 2004-11-19 | 2005-05-09 | Exhaust duct check valve with natural ventilation and speed changing functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2766173Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105674370A (en) * | 2016-04-05 | 2016-06-15 | 重庆市九龙坡区千里马建材厂 | Smoke exhaust air flue five-prevention variable speed system device |
| CN113599945A (en) * | 2021-07-31 | 2021-11-05 | 北京瑞辉如景科技有限公司 | Oil smoke exhaust treatment device |
-
2005
- 2005-05-09 CN CN 200520019228 patent/CN2766173Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105674370A (en) * | 2016-04-05 | 2016-06-15 | 重庆市九龙坡区千里马建材厂 | Smoke exhaust air flue five-prevention variable speed system device |
| CN105674370B (en) * | 2016-04-05 | 2017-10-13 | 重庆市九龙坡区千里马建材厂 | The anti-speed change system device of exhaust gas flue five |
| CN113599945A (en) * | 2021-07-31 | 2021-11-05 | 北京瑞辉如景科技有限公司 | Oil smoke exhaust treatment device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: WU HANMU Free format text: NEW ADDRESS: NO. 51, UNIT 5, BUILDING 13, JIANSHEXI ROAD, ZHENGZHOU CITY, HENAN PROVINCE, ZIP CODE:450007 |
|
| CP02 | Change in the address of a patent holder |
Address after: No. five, building 13, building No. 51, Jianshe West Road, Henan, Zhengzhou: 450007 Patentee after: Wu Hanmu Address before: No. 65 cotton road, Henan, Zhengzhou Province, attached No. 65, post code: 450052 Patentee before: Wu Hanmu |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060322 |