CN104990114A - Outlet housing of range hood - Google Patents
Outlet housing of range hood Download PDFInfo
- Publication number
- CN104990114A CN104990114A CN201510354822.4A CN201510354822A CN104990114A CN 104990114 A CN104990114 A CN 104990114A CN 201510354822 A CN201510354822 A CN 201510354822A CN 104990114 A CN104990114 A CN 104990114A
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- China
- Prior art keywords
- rotating shaft
- valve block
- outlet housing
- rotary shaft
- dividing plate
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
An outlet housing of a range hood comprises a hollow housing body and valve plates located on an air outlet in the upper end of the housing body, the center of the housing body is provided with an upper rotating shaft and a lower rotating shaft which transversely extend and are arranged in a vertically spaced mode, and two valve plates are arranged, are connected with the upper rotating shaft and the lower rotating shaft respectively and rotate around the upper rotating shaft and the lower rotating shaft respectively; a middle partition plate vertically extending is arranged between the upper rotating shaft and the lower rotating shaft and extends in the same direction as the upper rotating shaft and the lower rotating shaft, the two ends of the middle partition plate are fixed to the housing body, and the middle partition plate makes sealing contact with the two valve plates. According to the outlet housing of the range hood, the valve plates can be opened and closed at the same time to prevent unsmooth fume exhaust caused by asynchronous opening of the valve plates, when the range hood is not used, an opening of the housing body can be sealed well to prevent cooking fume from flowing backward, when the valve plates of the outlet housing are opened, unsmooth fume exhaust caused by overlarge decompression is avoided, it can be ensured that the valve plates are opened and closed smoothly, and the fume exhaust performance of the range hood is improved.
Description
Technical field
The present invention relates to a kind of lampblack absorber, particularly relate to a kind of outlet housing of lampblack absorber.
Background technology
In the building of household resident now used general be all common flue, the oil smoke that the range hood of every household is discharged is discharged after range hood enters common flue above house, if air outlet for kitchen ventilator is poorly sealed, will cause the oil smoke of underlying User in discharge process, enter the room of upper strata resident family, or when blowing hard or air pressure is low, also there will be the oil smoke that upper strata resident family discharges and enter situation in house from the exhaust outlet of the range hood of resident family of lower floor, produce between air flue collaborate mutually, the phenomenon of smoke blowing.So general lampblack absorber all sets out fan housing at the air outlet place of lampblack absorber, in outlet housing, valve block is set, when lampblack absorber uses, valve block opens that oil smoke is expelled to common flue usually, when lampblack absorber is closed, valve block is also closed, and prevents the oil smoke in common flue from pouring in down a chimney.Non-return valve block in common outlet housing is double valve sheet structure, and valve block can unidirectionally be opened outside outlet housing.
Outlet housing generally comprises the symmetrically arranged valve block of two panels, closes the outlet of whole outlet housing when valve block is closed." a kind of return air check-valve " disclosed in Chinese patent CN201137727Y, include non-return valve seat, the check-valves inner ring that non-return valve seat is fixedly connected with, check-valves inner ring is connected with blade by axle, blade matches with air outlet in a closed condition, such check-valves in off position lower matching with air outlet just in time covers the air outlet of range hood, when range hood works, blade opens air outlet, when range hood does not work, blade is closed by deadweight, blade is put on check-valves inner ring and forms sealing, prevent the oil smoke in the common flue outside air outlet from pouring in down a chimney.But the periphery of such check-valves blade is plane, after service time is of a specified duration, particularly oil smoke is much hot gas, closedown is blown open for a long time through hot gas, the distortion of blade edge may be caused, even thus when causing in off position, oil smoke also may pour in down a chimney into range hood from the space of formation after blade edge distortion; And the rotating shaft of this kind of valve seat valve block is positioned at the center of outlet housing, in order to enable two panels valve block smooth rotation, between the rotating shaft of two panels valve block, unobstructed meeting is provided with a less space, also can cause poorly sealed and then oil smoke can be caused to pour in down a chimney affect kitchen environment into kitchen.
And containing greasy dirt in oil smoke, lampblack absorber uses greasy dirt to be long afterwards easily piled up on valve block, cause adhesion between valve block and housing, and be piled up in the greasy dirt on valve block number depend on oil smoke amount that lampblack absorber sucks, performance, the air-out mode of blower fan system, the shape of exhaust passage, the mounting means of discharge pipe, the temperature humidity etc. of external environment that the grease of lampblack absorber itself is separated.So the greasy dirt be piled up on each valve block is unequal, it is different from the adhesion degree of the housing inner ring of outlet housing that this just directly results in valve block, suppose that valve block A and the bonding degree of housing inner ring are greater than the bonding degree of valve block B and housing inner ring, after lampblack absorber starts, static pressure in valve block its outlet housing of moment is before opening maximum, valve block A is equal with the air pressure suffered by valve block B, if first opened with the housing inner ring less valve block B of degree that bonds, gas pressure intensity moment then in outlet housing significantly reduces, valve block A is then difficult to open again, it is not smooth that this just directly results in lampblack absorber air draft, noise increases phenomenon and occurs.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of good seal performance, can prevent oil smoke from pouring in down a chimney, and is easy to valve block and opens and closes simultaneously, the outlet housing of unobstructed lampblack absorber of discharging fume.
The present invention solves the problems of the technologies described above adopted technical scheme: a kind of outlet housing of lampblack absorber, comprise the cover body of hollow, and the valve block be positioned on the air outlet of cover body upper end, it is characterized in that: the center of described cover body is provided with laterally extending and upper and lower spaced upper rotating shaft and lower rotary shaft, described valve block is two panels, be connected with upper rotating shaft and lower rotary shaft respectively and rotate around upper rotating shaft and lower rotary shaft respectively, the central dividing plate of downward-extension is provided with between described upper rotating shaft and lower rotary shaft, described central dividing plate and described on, lower rotary shaft extends in the same way and two ends and cover body fix, described two panels valve block is when it distinguishes corresponding axis of rotation to level, described two panels valve block seals the upper end air outlet of cover body together with central dividing plate.
In order to make outlet housing seal better, the periphery of described valve block is coated with the bag circle that a circle soft elastic material is made, and described bag circle contacts with sealing between central dividing plate and cover body.
In order to make the air outlet area of cover body maximum, the projection of described upper rotating shaft and lower rotary shaft in the vertical direction is overlapping.
For the ease of connecting and transmission, described upper rotating shaft and lower rotary shaft are positioned at the top of the valve block of its correspondence, and described upper rotating shaft and lower rotary shaft are fixedly connected with a connecting rod extended with its isoplanar respectively, and the top that described connecting rod is positioned at corresponding valve block is fixedly connected with valve block.
Preferably, described connecting rod is connected with valve block by connector, and two ends and the valve block of connector are fixed, and the mid portion of connector is across the top of connecting rod.
Being connected more firmly with valve block to make rotating shaft and being with moving valve plate to rotate better, the two ends of described connecting rod are fixedly connected with the both end sides of upper and lower rotating shaft respectively, and the middle part of connecting rod extends towards the outer peripheral edge portion of valve block.
Cannot normally work because of grease adhesion to prevent driving mechanism, cover body corresponding to the end of described upper rotating shaft and lower rotary shaft is provided with that through hole is kept supplying, the two ends of lower rotary shaft are stretched out and are positioned at outside cover body, and at least one end in the two ends of upper and lower rotating shaft is fixedly connected with the driving mechanism driving this upper and lower rotating shaft simultaneously to rotate.
Preferably, described driving mechanism comprises cogging of being connected with the end winding support of upper rotating shaft and the lower gear be connected with the end winding support of lower rotary shaft, described in cog and lower gear engages each other.
There will not be pressure release excessive and the situation that smoke evacuation that is that cause is not smooth in order to make valve block in the starting stage of opening procedure, along corresponding position, the cross section be provided with on above-below direction is the inner surface of arc to the outer side edges of described cover body and valve block, the center of circle of the arc section of this inner surface is positioned on the medial extremity of the valve block of its correspondence, described inner surface is up and down stagger two half-turns arranging corresponding with valve block, the medial extremity same level face of the valve block that the bottom of this inner surface is corresponding with it, the radius of curvature of described inner surface its arc section from the bottom up remains unchanged.
Preferably, the angle between the medial extremity of the valve block that the top of described inner surface is corresponding with it is 15 degree.
For the ease of guiding grease and be convenient to cleaning, described central dividing plate comprises and being connected and the accessory plate upwards extended in the side, bottom of central dividing plate with the bottom of central dividing plate, described accessory plate and central dividing plate extend in the same way and form groove between the two, lower rotary shaft below central dividing plate is positioned at the top of accessory plate one side trench, and the upper rotating shaft above central dividing plate is positioned at central dividing plate the same side relative to accessory plate.
Preferably, the difference in height between described upper rotating shaft and lower rotary shaft is 10mm-30mm.
Compared with prior art, the invention has the advantages that the outlet housing of this lampblack absorber, not only can opening valve block simultaneously and close valve block, preventing valve block smooth because of asynchronously opening the smoke evacuation caused, and can when lampblack absorber does not use, seal the opening of cover body well, prevent pouring in down a chimney of oil smoke, and this outlet housing is when valve block is opened, there will not be pressure release excessive and the situation that smoke evacuation that is that cause is not smooth, the smooth opening and closing of valve block can be ensured, improve the smoke evacuation performance of lampblack absorber.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view of the outlet housing of the lampblack absorber of the embodiment of the present invention.
Fig. 2 is the top view of the outlet housing of the lampblack absorber of the embodiment of the present invention.
Fig. 3 is the phantom along A-A line in Fig. 1.
Fig. 4 is the section plan along A-A line in Fig. 1.
Fig. 5 is the enlarged diagram of part B in Fig. 4.
Fig. 6 is the schematic diagram (removing the gear protective cover outside outlet housing) of the outlet housing of the lampblack absorber of the embodiment of the present invention.
Fig. 7 is the exploded view of the outlet housing of the lampblack absorber of the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
As shown in figs. 1-7, the outlet housing of the lampblack absorber of the embodiment of the present invention, comprises the cover body 1 of hollow, and the upper end of described cover body 1 is circular cross-section, and lower end is square-section, for connecting the smoke discharging pipe outside the air outlet of lampblack absorber inner spiral casing and lampblack absorber.Cover body 1 comprises body 10 and is positioned at the inner ring 20 of circle of upper end of body 10.
The center of the upper end of this cover body 1 is provided with laterally extending, namely along wherein diameter of the circular cross-section of cover body 1 upper end extend and between the upper and lower every two rotating shafts that correspondence is arranged, namely rotating shaft 2 and lower rotary shaft 3 is gone up, on this, the projection of rotating shaft 2 and lower rotary shaft 3 in the vertical direction is overlapping, and the end of upper rotating shaft 2 and lower rotary shaft 3 is all connected on cover body 1, upper rotating shaft 2 and lower rotary shaft 3 all can around the axial rotation of himself.Upper rotating shaft 2 is fixedly connected with a semicircular valve block 4, and lower rotary shaft 3 is also fixedly connected with a semicircular valve block 4, and the semicircular valve block of this two panels 4 lays respectively at the both sides of upper and lower rotating shaft, and also between the upper and lower every setting.Two valve blocks extend respectively to the both sides of upper and lower rotating shaft and can rotate around upper rotating shaft 2 and lower rotary shaft 31 respectively, and the medial extremity of valve block 4 is positioned at upper and lower rotating shaft side, and the outer periphery of valve block 4 is corresponding with cover body 1.This valve block 4 rotates around the axis to the upper end air outlet of just in time closing cover body 1 during level, and valve block 4 can open the upper end open of cover body 1 respectively around upper and lower axis of rotation.Because rotating shaft on this 2 and the corresponding interval of lower rotary shaft about 3 are arranged, when making two panels valve block 4 in off position, the projection of both rotating shaft in the vertical directions is overlapping, therefore, goes up between rotating shaft 2 and lower rotary shaft 3 very close to each other in the horizontal direction.This is provided with the central dividing plate 5 of downward-extension between rotating shaft 2 and lower rotary shaft 3, this central dividing plate 5 is positioned at the centre of cover body 1 and two ends are fixedly connected with cover body 1, and the upper and lower side of central dividing plate 5 all seals with the medial extremity of valve block 4 and contacts, make valve block 4 when horizontal closed condition, tightly can seal the outlet of the top of cover body 1, pouring in down a chimney of oil smoke can not be caused because of poorly sealed.Vertical distance on this between rotating shaft 2 and lower rotary shaft 3 and difference in height are 10mm-30mm, are preferably 20mm.And those skilled in the art also can recognize, this central dividing plate 5 can be connected with upper and lower rotating shaft and also can not connect, as long as when valve block 4 is closed, central dividing plate 5 and valve block 4 can seal the air outlet on cover body 1.The shape of valve block 4 can be semicircle, also can be other shapes or approximate half-circular.On this, rotating shaft 2 and lower rotary shaft 3 also can parallel interval be arranged up and down, might not overlap by the vertical direction, now, on central dividing plate 5 downward-extension but with horizontal direction to inclination, when now valve block 4 is opened, the area of whole outlet housing is less, but also can realize good sealing effectiveness, only have when the projection of upper lower rotary shaft in the vertical direction is overlapping, the area of the air outlet that valve block 4 is opened can realize maximizing.
Preferably, the periphery of this valve block 4 is coated with a circle soft elastic material, the bag circle 6 that such as elastomeric material etc. are made, this bag circle 6 extends towards central dividing plate 5 in the side near upper and lower rotating shaft, for by the sealing between valve block 4 and central dividing plate 5, this bag circle 6 extends, for the sealing between valve block 4 and cover body 1 towards the inner surface side of cover body 1 towards the inner surface of cover body 1.And preferably, be linear contact lay between this bag circle 6 and inner surface of cover body 1, as shown in Figure 5, such structure can make the contact surface between valve block 4 and cover body 1 reduce, and prevents from producing adhesion because grease piles up between valve block 4 and cover body 1.
Preferably, be interconnected and fixed respectively by connecting rod 7 between upper rotating shaft 2 and the valve block 4 of lower rotary shaft 3 and both sides, namely upper and lower rotating shaft lays respectively at the top of valve block 4, the two ends of connecting rod 7 are fixedly connected with rotating shaft respectively, and lay respectively at the both end sides of upper and lower rotating shaft, the middle bent of connecting rod 7 extends towards the outer peripheral edge portion of valve block 4, and connecting rod 7 and the equal isoplanar of upper and lower rotating shaft arrange the top being positioned at valve block 4.The both end sides of connecting rod 7 is connected with valve block 4 respectively by connector 71 with mid portion, and preferably, connector 71 is plates, and the two ends of connector 71 are fixedly connected with valve block 4, and the mid portion of connector 71 is across the top of connecting rod 7.Such structure had both been convenient to connection and the dismounting of rotating shaft and valve block, made again to be able to good sealing between valve block 4 and central dividing plate 5 and rotating shaft and cover body 1, prevented the phenomenon of falling cigarette.And those skilled in the art also can recognize, upper and lower rotating shaft also can not be connected by connecting rod 7 with between valve block, also can be fixedly connected with one-body molded or by other means between valve block 4 and corresponding rotating shaft.
The position that this cover body 1 is corresponding with the outer circumference edge of valve block 4, the cross section be provided with on above-below direction is the inner surface 11 of arc, and the center of circle of the cross section arc of this inner surface 11 is positioned in the rotating shaft of the correspondence of the valve block 4 of its correspondence.Because valve block 4 is the two panels arranged that staggers up and down, therefore this inner surface 11 is two half-turns staggered up and down in the both sides that are positioned at cover body 1 that arrange corresponding to valve block 4, the inner surface 11 of this arc arranges along the side face of cover body 1 and coaxially arranges with cover body 1, namely this inner surface 11 is provided with two, the medial extremity same level face of the valve block 4 that the bottom of each inner surface 11 is corresponding with it respectively, the angle a that the medial extremity of the valve block that the top of inner surface 11 is corresponding with it is formed is about 15 degree, inner surface 11 from the bottom up its radius of curvature remains unchanged, namely in valve block 4 motion process around the shaft, when rotating within the scope of 0-15 degree, gap between the periphery of valve block 4 and cover body 1 can remain unchanged, such structure can prevent valve block from opening initial stage excessive and pressure release that is that cause because the gap between valve block 4 and cover body 1 changes, prevent the stressed rapid drawdown of valve block 4, valve block 4 opens the unstable phenomenon of vibration, particularly when back pressure is larger, effect is more obvious.And the bottommost of this inner surface 11 is shelved for the periphery of valve block 4 relative to the center indent of top to cover body 1, spacing when closing the opening of outlet housing downwards for valve block 4.
The position that the two ends of described cover body 1 and upper rotating shaft 2 and lower rotary shaft 3 are corresponding is respectively equipped with through hole 12, the two ends of upper and lower rotating shaft stretch out in the outside that through hole 12 is positioned at cover body 1 respectively, and at least one end in the corresponding two ends of upper and lower rotating shaft is fixed with cog 21 and lower gear 31 respectively, this cogs and 21 is connected with lower gear 31 outside being positioned at cover body 1, and can around himself axle rotate, cog 21 and lower gear 31 engage each other interlock.Therefore, if drive cog in 21 and lower gear 31 one of them, upper and lower rotating shaft can be driven simultaneously to rotate, two panels valve block 4 can be driven simultaneously to rotate, open simultaneously or close.Cog 21 and the outside of lower gear 31 be covered with gear protective cover 8.The setting that upper lower rotary shaft staggers up and down, can ensure the engagement of upper and lower gear and have enough interlock moments of torsion, valve block can be made better simultaneously to link and open or close.
And those skilled in the art can recognize, the end be positioned at outside cover body 1 of this upper and lower rotating shaft not necessarily will connect gear, also can connect the driving mechanisms such as linkage, as long as this driving mechanism can drive lower rotary shaft synchronous axial system simultaneously simultaneously.And preferably, this driving mechanism is positioned at the outside of cover body 1.
Preferably, this central dividing plate 5 comprises and being connected and the accessory plate 51 upwards extended in the side, bottom of central dividing plate 5 with the bottom of central dividing plate 5, this accessory plate 51 extends in the same way with central dividing plate 5 and forms a groove 52 between the two, lower rotary shaft 3 below central dividing plate 5 is positioned at the top of accessory plate 51 1 side trench 52, and the upper rotating shaft 2 above central dividing plate 5 is positioned at the same side relative to accessory plate 51 of central dividing plate 5.This groove 52 can pile up grease, makes the grease on valve block 4 all can be piled up in this, is convenient to the guiding of cleaning and grease.
The outlet housing of this lampblack absorber, not only can open valve block simultaneously and close valve block, prevent valve block not smooth because of asynchronously opening the smoke evacuation caused, and when lampblack absorber does not use, the opening of cover body can be sealed well, prevent pouring in down a chimney of oil smoke, and this outlet housing is when valve block is opened, there will not be pressure release excessive and the not smooth situation of the smoke evacuation that causes, the smooth opening and closing of valve block can be ensured, improve the smoke evacuation performance of lampblack absorber.
Although more than describe in detail the preferred embodiments of the present invention, should be expressly understood that, for a person skilled in the art, the present invention can have various modifications and variations.All any amendments done within the spirit and principles in the present invention, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. the outlet housing of a lampblack absorber, comprise the cover body (1) of hollow, and the valve block (4) be positioned on the air outlet of cover body (1) upper end, it is characterized in that: the center of described cover body (1) is provided with laterally extending and upper and lower spaced upper rotating shaft (2) and lower rotary shaft (3), described valve block (4) is two panels, be connected with upper rotating shaft (2) and lower rotary shaft (3) respectively and rotate around upper rotating shaft (2) and lower rotary shaft (3) respectively, the central dividing plate (5) of downward-extension is provided with between described upper rotating shaft (2) and lower rotary shaft (3), described central dividing plate (5) with described on, lower rotary shaft extends in the same way and two ends and cover body (1) fix, seal between described central dividing plate (5) with two panels valve block (4) and contact, described two panels valve block (4) is when it distinguishes corresponding axis of rotation to level, described two panels valve block (4) seals the upper end air outlet of cover body (1) together with central dividing plate (5).
2. the outlet housing of lampblack absorber as claimed in claim 1, it is characterized in that: the periphery of described valve block (4) is coated with the bag circle (6) that a circle soft elastic material is made, described bag circle (6) contacts with sealing between central dividing plate (5) and cover body (1).
3. the outlet housing of lampblack absorber as claimed in claim 2, is characterized in that: the projection of described upper rotating shaft (2) and lower rotary shaft (3) in the vertical direction is overlapping.
4. the outlet housing of lampblack absorber as claimed in claim 2 or claim 3, it is characterized in that: described upper rotating shaft (2) and lower rotary shaft (3) are positioned at the top of the valve block (4) of its correspondence, and described upper rotating shaft (2) and lower rotary shaft (3) are fixedly connected with a connecting rod (7) extended with its isoplanar respectively, and the top that described connecting rod (7) is positioned at corresponding valve block (4) is fixedly connected with valve block (4).
5. the outlet housing of lampblack absorber as claimed in claim 4, it is characterized in that: described connecting rod (7) is connected with valve block (4) by connector (71), the two ends of connector (71) and valve block (4) are fixed, and the mid portion of connector (71) is across the top of connecting rod (7).
6. the outlet housing of lampblack absorber as claimed in claim 4, it is characterized in that: the two ends of described connecting rod (7) are fixedly connected with the both end sides of upper and lower rotating shaft respectively, the middle part of connecting rod (7) extends towards the outer peripheral edge portion of valve block (4).
7. the outlet housing of lampblack absorber as claimed in claim 4, it is characterized in that: cover body (1) corresponding to the end of described upper rotating shaft (2) and lower rotary shaft (3) is provided with that through hole (12) is kept supplying, the two ends of lower rotary shaft are stretched out and are positioned at cover body (1) outward, and at least one end in the two ends of upper and lower rotating shaft is fixedly connected with the driving mechanism driving this upper and lower rotating shaft simultaneously to rotate.
8. the outlet housing of lampblack absorber as claimed in claim 7, it is characterized in that: described driving mechanism comprises cog (21) that are connected with the end winding support of upper rotating shaft (2), and the lower gear (31) to be connected with the end winding support of lower rotary shaft (3), described in cog (21) and lower gear (31) engages each other.
9. the outlet housing of lampblack absorber as claimed in claim 1 or 2, it is characterized in that: along corresponding position, the cross section be provided with on above-below direction is the inner surface (11) of arc to the outer side edges of described cover body (1) and valve block (4), the center of circle of the arc section of this inner surface (11) is positioned on the medial extremity of valve block (4) of its correspondence, described inner surface (11) is up and down stagger two half-turns arranging corresponding with valve block (4), the medial extremity same level face of the valve block (4) that the bottom of this inner surface (11) is corresponding with it, the radius of curvature of described inner surface (11) its arc section from the bottom up remains unchanged.
10. the outlet housing of lampblack absorber as claimed in claim 9, is characterized in that: the angle (a) between the medial extremity of the valve block (4) that the top of described inner surface (11) is corresponding with it is 15 degree.
The outlet housing of 11. lampblack absorbers as claimed in claim 3, it is characterized in that: described central dividing plate (5) comprises and being connected and the accessory plate (51) upwards extended in the side, bottom of central dividing plate (5) with the bottom of central dividing plate (5), described accessory plate (51) and central dividing plate (5) extend in the same way and form groove (52) between the two, the lower rotary shaft (3) of central dividing plate (5) below is positioned at the top of accessory plate (51) side trench, the upper rotating shaft (2) of central dividing plate (5) top is positioned at central dividing plate (5) the same side relative to accessory plate (51).
The outlet housing of 12. lampblack absorbers as claimed in claim 1, is characterized in that: the difference in height between described upper rotating shaft (2) and lower rotary shaft (3) is 10mm-30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510354822.4A CN104990114B (en) | 2015-06-24 | 2015-06-24 | A kind of outlet housing of lampblack absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510354822.4A CN104990114B (en) | 2015-06-24 | 2015-06-24 | A kind of outlet housing of lampblack absorber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104990114A true CN104990114A (en) | 2015-10-21 |
| CN104990114B CN104990114B (en) | 2017-10-27 |
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ID=54301969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510354822.4A Active CN104990114B (en) | 2015-06-24 | 2015-06-24 | A kind of outlet housing of lampblack absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104990114B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107975841A (en) * | 2017-05-26 | 2018-05-01 | 宁波方太厨具有限公司 | A kind of ventilator air outlet cover of smoke-backflow-proof taint of odour |
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|---|---|---|---|---|
| CN87213674U (en) * | 1987-09-22 | 1988-07-06 | 石家庄市阀门一厂 | Duct check-valve |
| US4774981A (en) * | 1987-02-20 | 1988-10-04 | Nifco Inc. | Check valve |
| CN201330873Y (en) * | 2008-12-05 | 2009-10-21 | 北京市阀门总厂(集团)有限公司 | Swing check valve capable of realizing hermetic sealing |
| CN102927600A (en) * | 2012-10-30 | 2013-02-13 | 宁波方太厨具有限公司 | Air outlet housing of range hood |
| CN202885059U (en) * | 2012-10-30 | 2013-04-17 | 宁波方太厨具有限公司 | Air outlet device for smoke exhauster |
| CN202955302U (en) * | 2012-11-29 | 2013-05-29 | 宁波方太厨具有限公司 | Outlet housing for range hood |
| CN204739654U (en) * | 2015-06-24 | 2015-11-04 | 宁波方太厨具有限公司 | Play fan housing of lampblack absorber |
-
2015
- 2015-06-24 CN CN201510354822.4A patent/CN104990114B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4774981A (en) * | 1987-02-20 | 1988-10-04 | Nifco Inc. | Check valve |
| CN87213674U (en) * | 1987-09-22 | 1988-07-06 | 石家庄市阀门一厂 | Duct check-valve |
| CN201330873Y (en) * | 2008-12-05 | 2009-10-21 | 北京市阀门总厂(集团)有限公司 | Swing check valve capable of realizing hermetic sealing |
| CN102927600A (en) * | 2012-10-30 | 2013-02-13 | 宁波方太厨具有限公司 | Air outlet housing of range hood |
| CN202885059U (en) * | 2012-10-30 | 2013-04-17 | 宁波方太厨具有限公司 | Air outlet device for smoke exhauster |
| CN202955302U (en) * | 2012-11-29 | 2013-05-29 | 宁波方太厨具有限公司 | Outlet housing for range hood |
| CN204739654U (en) * | 2015-06-24 | 2015-11-04 | 宁波方太厨具有限公司 | Play fan housing of lampblack absorber |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107975841A (en) * | 2017-05-26 | 2018-05-01 | 宁波方太厨具有限公司 | A kind of ventilator air outlet cover of smoke-backflow-proof taint of odour |
| CN107975841B (en) * | 2017-05-26 | 2023-12-15 | 宁波方太厨具有限公司 | Exhaust hood capable of preventing smoke from flowing backwards and mixing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104990114B (en) | 2017-10-27 |
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