CN202955302U - Outlet housing for range hood - Google Patents
Outlet housing for range hood Download PDFInfo
- Publication number
- CN202955302U CN202955302U CN 201220642689 CN201220642689U CN202955302U CN 202955302 U CN202955302 U CN 202955302U CN 201220642689 CN201220642689 CN 201220642689 CN 201220642689 U CN201220642689 U CN 201220642689U CN 202955302 U CN202955302 U CN 202955302U
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- Prior art keywords
- valve block
- gear
- rotating shaft
- housing
- outlet housing
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Abstract
The utility model discloses outlet housing for a range hood. The outlet housing for the range hood comprises a shell body (1) and a valve plate (2) consisting of a first valve plate (21) and a second valve plate (22), wherein the first valve plate (21) and the second valve plate (22) are fixed with a first rotating shaft (23) and a second rotating shaft (24) respectively, a first gear (25) is arranged on the first rotating shaft (23), a second gear (26) is arranged on the second rotating shaft (24), and the first gear (25) is meshed with the second gear (26). The outlet housing for the range hood is characterized in that the first gear (25) and the second gear (26) are arranged outside the shell body (1); a seal (3) which can form line surface sealing with the first valve plate (21) and the second valve plate (22) is covered above the first valve plate (21) and the second valve plate (22), wherein the edge of the seal exceeds the edges of the first valve plate (21) and the second valve plate (22), and the two ends of the seal (3) are fixed on the shell body respectively. When the outlet housing for the range hood is used, the valve plates can be normally opened, and when the outlet housing for the range hood is not used, the valve plates can prevent from smoke pouring and smoke channeling.
Description
Technical field
The utility model relates to a kind of kitchen ventilator outlet housing, especially a kind of outlet housing that can effectively open and close.
Background technique
Common kitchen ventilator generally comprises a tubular shell with outlet housing, built-in two valve blocks, two valve block coaxial rotation.Owing to containing greasy dirt in oil smoke, use greasy dirt long afterwards easily to be piled up on valve block, cause adhesion between valve block and housing, and be piled up in greasy dirt on valve block the number depend on the performance of the grease separation of oil smoke amount that kitchen ventilator sucks, kitchen ventilator itself, the air-out mode of blower fan system, the shape of exhaust passage, the mounting type of air outlet tube, the temperature humidity of external environment etc.So the greasy dirt be piled up on each valve block of double valve sheet outlet housing is unequal, this has just directly caused valve block different from the adhesion degree of housing inner ring, suppose that the bonding degree of valve block A and housing inner ring is greater than the bonding degree of valve block B and housing inner ring, after kitchen ventilator starts, static pressure in valve block its outlet housing of the moment before opening is maximum, the valve block A air pressure suffered with valve block B equates, if the valve block B less with housing inner ring bonding degree first opens, the gas pressure intensity moment in outlet housing significantly reduces, valve block A is difficult to open again, this has just directly caused the kitchen ventilator air draft not smooth, noise increases phenomenon and occurs.
Used in the building that family now lives is all generally common flue, the oil smoke that the range hood of every household is discharged is discharged from the house top from range hood enters common flue, if air outlet for kitchen ventilator is poorly sealed, will cause the user's of lower floor oil smoke to enter the room of upper strata resident family in discharge process, perhaps when blowing hard or air pressure when low, also there will be the oil smoke that upper strata resident family discharges to enter in house from the relief opening of the range hood of resident family of lower floor, produce between air flue collaborate mutually, the phenomenon of smoke blowing.
Therefore, the Chinese patent that the publication number of claimant's application of the application is CN202158233U discloses the structure of two valve blocks of synchronous opening and closing, but the gap in this structure between two valve blocks is very large, the smoke-backflow-proof effect is bad, this structure design of gears in the middle of the oil pollution environment of thickness, the risk that has existed valve block to be difficult to folding, and this structure valve block is difficult to be opened to maximum angular 90 degree.
The model utility content
The kitchen ventilator outlet housing that when technical problem to be solved in the utility model is to provide a kind of the use, valve block can normally be opened, while not using, the energy smoke-backflow-proof is altered cigarette.
The utility model solves the problems of the technologies described above adopted technological scheme: a kind of kitchen ventilator outlet housing, comprise housing and by the first valve block, the valve block that the second valve block forms, described the first valve block and described the second valve block are fixed with the first rotating shaft and the second rotating shaft respectively, be provided with the first gear in described the first rotating shaft, be provided with the second gear in described the second rotating shaft, the first gear and the second gear are intermeshing, it is characterized in that: described the first gear and the second gear all are arranged on outside housing, the first valve block and top, the second valve block connecting part are coated with edge and surpass the first valve block, the second valve block edge, and can with the first valve block, the second valve block forms the strip of paper used for sealing of line face sealing, the two ends of this strip of paper used for sealing are separately fixed on housing.
Described the first gear and the second gear lay respectively at the first end of described the first rotating shaft and the second rotating shaft, and the second end of described the first rotating shaft and the second rotating shaft is provided with intermeshing the 3rd gear and the 4th gear, and the 3rd gear and the 4th gear all are arranged on outside housing.This structure is pure mechanical mechanism, and after kitchen ventilator starts, outlet housing housing internal pressure increases, and the first valve block and the second valve block are by the first gear and the motion of the second gear synchronous, and outlet housing is opened; When kitchen ventilator is closed, outlet housing housing internal pressure reduces, and the first valve block and the second valve block are subject to gravity and move by gear synchronous, and the arc-shaped side of the first valve block and the second valve block is along coming on the outlet housing inner ring, the straight line of the first valve block and the second valve block, along coming on the edge of strip of paper used for sealing, is realized smoke-backflow-proof.
Described the first gear and the second gear lay respectively at the first end of described the first rotating shaft and the second rotating shaft, and the second end of described the first rotating shaft or the second rotating shaft is connected with motor output shaft.This structure is the electric drive structure, after kitchen ventilator starts, electric machine rotation, the first valve block and the second valve block move to maximum angular 90 degree by gear synchronous, and kitchen ventilator is closed, and motor rotates backward, the first valve block and the second valve block move by gear synchronous, make the arc-shaped side of the first valve block and the second valve block along abutting on the outlet housing inner ring, the straight line of the first valve block and the second valve block, along abutting on the edge of strip of paper used for sealing, is realized smoke-backflow-proof.
As improvement, be positioned at described the first rotating shaft and the second rotating shaft below in described housing and be provided with " V-type " air-guiding strip.
Compared with prior art, the utility model has the advantage of: designed gear engagement structure, made two valve blocks can synchronous on-off; Design of gears, outside the outlet housing housing, is avoided to the pollution of greasy dirt; The design seal structure, make valve block lower to becoming line face combination seal with strip of paper used for sealing when closure, and the mode that the line face seals can either prevent that two gaps between valve block from falling cigarette, can prevent that again valve block and strip of paper used for sealing from being glued extremely; In electric structure, due to the effect of motor, make obturation effect when closing better, valve block can reach the upset of 90 degree when opening, and can not hinder the kitchen ventilator air output.
The accompanying drawing explanation
Fig. 1 is the perspective view that in the utility model embodiment one, kitchen ventilator is used outlet housing;
Fig. 2 is the perspective view of outlet housing for kitchen ventilator in the utility model embodiment one (housing parts is hidden, valve block closed condition);
Fig. 3 is the perspective view of outlet housing for kitchen ventilator in the utility model embodiment one (housing parts is hidden, valve block opening state);
Fig. 4 be in Fig. 1 A-A to sectional view;
Fig. 5 is I section enlarged view in Fig. 4;
The three-dimensional mounting structure schematic diagram that Fig. 6 is the utility model embodiment one middle valve plate;
Fig. 7 is the perspective view of outlet housing for kitchen ventilator in the utility model embodiment two (housing parts is hidden, valve block closed condition);
Fig. 8 is the perspective view of outlet housing for kitchen ventilator in the utility model embodiment two (housing parts is hidden, valve block open 90 degree states);
Fig. 9 be in Fig. 7 B-B to sectional view;
The three-dimensional mounting structure schematic diagram that Figure 10 is the utility model embodiment two middle valve plates.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.
Embodiment one
Referring to Fig. 1～6, a kind of kitchen ventilator outlet housing, comprise housing 1 and the valve block 2 of tubular.Valve block 2 is positioned at valve body housing 1, consists of two equal semicirculars in shape of valve block the first valve block 21 and the second valve block 22.The first valve block 21 and the second valve block 22 are fixing with the first rotating shaft 23 and the second rotating shaft 24 respectively, and each valve block all rotates by rotating shaft separately.The first end of described the first rotating shaft 23 and the second rotating shaft 24 is respectively arranged with the first gear 25 and the second gear 26, the first gear 25 and the second gear 26 are intermeshing, the second end of described the first rotating shaft 23 and the second rotating shaft 24 is respectively arranged with the 3rd gear 27 and the 4th gear 28, the 3rd gear 27 and the 4th gear 28 are intermeshing, and described the first gear 25, the second gear 26, the 3rd gear 27 and the 4th gear (28) all are arranged on housing 1.The first valve block 21 and the second valve block 22 tops are coated with edge and surpass the straight line of the first valve block 21, the second valve block 22, also can form the strip of paper used for sealing 3 of line faces sealing with the first valve block 21, the second valve block 22, and the two ends of this strip of paper used for sealing 3 are separately fixed on housing.Be positioned at described the first rotating shaft 23 in housing 1 and the second rotating shaft 24 belows are provided with " V-type " air-guiding strip 4, the edge of " V-type " air-guiding strip 4 surpasses the straight line of the first valve block 21, the second valve block 22.
Working principle is: after kitchen ventilator starts, outlet housing housing internal pressure increases, and the first valve block and the second valve block are by the first gear and the motion of the second gear synchronous, and outlet housing is opened; When kitchen ventilator is closed, outlet housing housing internal pressure reduces, and the first valve block and the second valve block are subject to gravity and move by gear synchronous, and the arc-shaped side of the first valve block and the second valve block is along coming on the outlet housing inner ring, the straight line of the first valve block and the second valve block, along coming on the edge of strip of paper used for sealing, is realized smoke-backflow-proof.
Embodiment two
Different from embodiment one, the second end of described the first rotating shaft 23 or the second rotating shaft 24 is connected with motor 6 output shafts, and motor 6 also is arranged on outside housing 1.Shown in Fig. 7～Figure 10.
Working principle is: after kitchen ventilator starts, and electric machine rotation, the first valve block and the second valve block are synchronized with the movement to maximum angular 90 degree by the first gear and the second gear wheel.Kitchen ventilator is closed, motor rotates backward, the first valve block and the second valve block are by the first gear and the motion of the second gear synchronous, make the arc-shaped side of the first valve block and the second valve block along abutting on the outlet housing inner ring, the straight line of the first valve block and the second valve block, along abutting on the edge of strip of paper used for sealing, is realized smoke-backflow-proof.
Claims (4)
1. a kitchen ventilator outlet housing, comprise housing (1) and by the first valve block (21), the valve block (2) that the second valve block (22) forms, described the first valve block (21) and described the second valve block (22) are fixing with the first rotating shaft (23) and the second rotating shaft (24) respectively, be provided with the first gear (25) in described the first rotating shaft (23), be provided with the second gear (26) in described the second rotating shaft (24), the first gear (25) and the second gear (26) are intermeshing, it is characterized in that: described the first gear (25) and the second gear (26) all are arranged on outside housing (1), the first valve block (21) and top, the second valve block (22) connecting part are coated with edge and surpass the first valve block (21), the edge of the second valve block (22), and can with the first valve block (21), the second valve block (22) forms the strip of paper used for sealing (3) of line face sealing, the two ends of this strip of paper used for sealing (3) are separately fixed on housing.
2. kitchen ventilator outlet housing as claimed in claim 1, it is characterized in that: described the first gear (25) and the second gear (26) lay respectively at the first end of described the first rotating shaft (23) and the second rotating shaft (24), the second end of described the first rotating shaft (23) and the second rotating shaft (24) is provided with intermeshing the 3rd gear (27) and the 4th gear (28), and the 3rd gear (27) and the 4th gear (28) all are arranged on outside housing (1).
3. kitchen ventilator outlet housing as claimed in claim 2, it is characterized in that: described the first gear (25) and the second gear (26) lay respectively at the first end of described the first rotating shaft (23) and the second rotating shaft (24), and the second end of described the first rotating shaft (23) or the second rotating shaft (24) is connected with motor output shaft.
4. kitchen ventilator outlet housing as claimed in claim 1, is characterized in that: below being positioned at described the first rotating shaft (23) and the second rotating shaft (24) in described housing (1), be provided with " V-type " air-guiding strip (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220642689 CN202955302U (en) | 2012-11-29 | 2012-11-29 | Outlet housing for range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220642689 CN202955302U (en) | 2012-11-29 | 2012-11-29 | Outlet housing for range hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202955302U true CN202955302U (en) | 2013-05-29 |
Family
ID=48460874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220642689 Expired - Lifetime CN202955302U (en) | 2012-11-29 | 2012-11-29 | Outlet housing for range hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202955302U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104990114A (en) * | 2015-06-24 | 2015-10-21 | 宁波方太厨具有限公司 | Outlet housing of range hood |
| CN106642244A (en) * | 2016-09-30 | 2017-05-10 | 宁波方太厨具有限公司 | Backdraught-resistant air-out shield used for extractor hood |
| CN113757983A (en) * | 2021-08-26 | 2021-12-07 | 湖南红橡室内气候技术有限公司 | Air valve |
-
2012
- 2012-11-29 CN CN 201220642689 patent/CN202955302U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104990114A (en) * | 2015-06-24 | 2015-10-21 | 宁波方太厨具有限公司 | Outlet housing of range hood |
| CN106642244A (en) * | 2016-09-30 | 2017-05-10 | 宁波方太厨具有限公司 | Backdraught-resistant air-out shield used for extractor hood |
| CN106642244B (en) * | 2016-09-30 | 2019-01-08 | 宁波方太厨具有限公司 | A kind of smoke-backflow-proof outlet housing for range hood |
| CN113757983A (en) * | 2021-08-26 | 2021-12-07 | 湖南红橡室内气候技术有限公司 | Air valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130529 |