CN111219757B - Fume exhaust fan - Google Patents
Fume exhaust fan Download PDFInfo
- Publication number
- CN111219757B CN111219757B CN201811415871.4A CN201811415871A CN111219757B CN 111219757 B CN111219757 B CN 111219757B CN 201811415871 A CN201811415871 A CN 201811415871A CN 111219757 B CN111219757 B CN 111219757B
- Authority
- CN
- China
- Prior art keywords
- gear
- guide plate
- petticoat pipe
- range hood
- collection petticoat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
- F24C15/2078—Removing cooking fumes movable
- F24C15/2092—Removing cooking fumes movable extendable or pivotable
-
- 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
- F24C15/2035—Arrangement or mounting of filters
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
Abstract
The utility model provides a range hood, includes fan frame and the collection petticoat pipe of locating fan frame below, fan frame internally mounted has the fan, installs guide plate, its characterized in that in the below of range hood air intake: the smoke collecting hood and the guide plate can swing relative to the air inlet to change the distribution of a negative pressure area of an air inlet area, and the smoke collecting hood and the guide plate can synchronously swing under the driving of the driving mechanism. Compared with the prior art, the invention has the advantages that: the smoke collecting hood and the guide plate of the range hood can swing relative to the air inlet to change the distribution of the negative pressure area of the air inlet area, and the smoke collecting hood and the guide plate can swing synchronously under the driving of the driving mechanism, so that the smoke collecting hood and the guide plate swing by corresponding angles according to different oil smoke amounts, the negative pressure area is closer to a cooking area, the oil smoke is firstly buffered by the guide plate before the oil smoke is diffused, and then the oil smoke is sucked away, the oil smoke is prevented from escaping, and the oil smoke suction effect is greatly improved.
Description
Technical Field
The invention relates to a range hood.
Background
At present, the integral installation height of the European-style range hood determines that the range hood is far away from a pot generating oil smoke, the negative pressure loss is large, the oil smoke rising above the pot easily escapes from two sides of a smoke collecting cover, the oil smoke suction effect is poor, and the traditional range hood cannot suck back once the oil smoke is separated from an area. In order to improve the effect of the range hood, people improve the structure of the range hood, wherein a fan system of the range hood is improved by a common method, for example, the power of a fan is increased, for example, the structure of an impeller is improved, and the like.
There is the range hood that prevents the oil smoke escape through the structure that sets up the fender cigarette board among the prior art, like the chinese utility model patent of patent number ZL 201320021818.2 (the grant bulletin number is CN 203068633U) discloses "range hood", this range hood installs the fender cigarette board that can rotate in range hood's smoking mouth front side, through the angle that changes fender cigarette board and smoking mouth, adjust range hood's smoking effect, and when not using, can hide the inside rotation of fender cigarette board, thereby improve the wholeness of range hood and cupboard. As disclosed in the chinese utility model patent with patent No. ZL 201520764022.5 (No. CN 205037392U), the range hood is provided with at least one movable smoke baffle capable of opening and increasing the smoke receiving area of the smoke collecting hood on the smoke collecting hood body, and when in use, the movable smoke baffle is opened to increase the smoke receiving area of the smoke collecting hood, thereby blocking the rising smoke. Although, above-mentioned modified range hood can promote the oil absorption cigarette effect through setting up the activity and keeping off the cigarette board, under the less condition in collection petticoat pipe reverse tension chamber or range hood suction, still easily disperse and lead to running the cigarette after touching the petticoat pipe inner wall to influence the oil absorption cigarette effect.
Disclosure of Invention
The technical problem to be solved by the invention is to provide the range hood which can improve the oil smoke suction effect through the linkage of the smoke collecting cover and the guide plate, aiming at the current situation of the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: this range hood, including fan frame and the collection petticoat pipe of locating fan frame below, fan frame internally mounted has the fan, installs guide plate, its characterized in that in the below of range hood air intake: the smoke collecting hood and the guide plate can swing relative to the air inlet to change the distribution of a negative pressure area of an air inlet area, and the smoke collecting hood and the guide plate can synchronously swing under the driving of the driving mechanism.
Preferably, the collection petticoat pipe is including installing the fixed collection petticoat pipe in fan frame bottom and locating left side activity collection petticoat pipe, the right side activity collection petticoat pipe of fixed collection petticoat pipe left and right both sides respectively, the range hood air intake is located in the fixed collection petticoat pipe, the interior side portion of left side activity collection petticoat pipe and the interior side portion of right side activity collection petticoat pipe all rotate to be connected on the fixed collection petticoat pipe.
The left side activity collection petticoat pipe and right side activity collection petticoat pipe can have multiple swing mode, preferably, under the not on state, the equal level setting of left side activity collection petticoat pipe and right side activity collection petticoat pipe, under the on state, left side activity collection petticoat pipe and right side activity collection petticoat pipe homoenergetic relatively fixed collection petticoat pipe downward swing.
Further preferably, the maximum angle of downward swing of the left movable smoke collecting hood and the right movable smoke collecting hood is 30 °.
The guide plate can have multiple structures, preferably install the filter screen subassembly in the fixed collection petticoat pipe, the filter screen subassembly is including the left side air intake and the right side air intake that constitute the range hood air intake, the guide plate include with left side air intake matched with left side guide plate and with right side air intake matched with right side guide plate, the medial part of left side guide plate and the medial part of right side guide plate all rotate to be connected on the filter screen subassembly, and, the left side guide plate with left side activity collection petticoat pipe links mutually, the right side guide plate with right side activity collection petticoat pipe links mutually.
Preferably, the swing angle of the left guide plate is 1.5-2.5 times of the swing angle of the left movable smoke collecting hood, and the swing angle of the right guide plate is 1.5-2.5 times of the swing angle of the right movable smoke collecting hood.
In order to make the appearance of the range hood in the non-starting state simpler, the left air inlet and the right air inlet are respectively covered by the left guide plate and the right guide plate in the non-starting state. Moreover, the guide plate can also play a role in preventing the smell from being mixed by the falling smoke after being attached to the air inlet.
Further preferably, under the power-on state, the left guide plate and the right guide plate can swing downwards, and the maximum angle of downward swing of the left guide plate and the right guide plate from the position under the power-on state is 60 degrees.
In order to smoothly collect oil drops flowing down from the filter screen assembly and the flow guide plate, the planes of the left air inlet and the right air inlet are arranged in a self-uniform mode and inclined outwards, strip-shaped oil cups distributed forwards and backwards are installed at the bottom of the filter screen assembly, and the inner side of the left flow guide plate and the vertical projection of the right flow guide plate fall into the strip-shaped oil cups.
In order to enable the negative pressure areas on the left side and the right side to be independently adjusted, the driving mechanism comprises a first driving mechanism and a second driving mechanism which work independently of each other, the first driving mechanism is used for driving the left movable smoke collecting hood and the left guide plate to synchronously swing, and the second driving mechanism is used for driving the right movable smoke collecting hood and the right guide plate to synchronously swing.
The first driving mechanism and the second driving mechanism can have a plurality of different driving modes, preferably, each of the first driving mechanism and the second driving mechanism comprises a motor, a first gear, a second gear, a third gear, a fourth gear, a fifth gear, a sixth gear, a first rack, a second rack and a third rack, the first gear is mounted on an output shaft of the motor, the second gear, the third gear and the fourth gear are coaxially arranged in the front-back direction and are positioned below the first gear, the first rack is mounted on the first gear and the second gear, the fifth gear is arranged on the outer side of the third gear, the second rack is mounted on the third gear and the fifth gear, the left movable smoke collecting hood and the right movable smoke collecting hood are mounted on an output shaft of the fifth gear and are driven by the fifth gear to swing, the sixth gear is arranged below the fourth gear, the third rack is arranged on the fourth gear and the sixth gear, and the left guide plate and the right guide plate are arranged on an output shaft of the sixth gear and swing under the driving of the sixth gear.
Further preferably, the second gear is located right below the first gear, the third gear and the fifth gear are located at the same level, and the sixth gear is located right below the fourth gear.
Further preferably, the motor is mounted on the back of the fan frame, and the second gear, the third gear and the fourth gear are sequentially arranged from back to front and mounted on the back of the fixed smoke collecting hood.
In order to enable the swing angle of the guide plate to be larger than that of the movable smoke collecting cover, the third gear and the fourth gear are identical in structure, the tooth pitches of the second rack and the third rack are identical, the tooth pitches of the fifth gear and the sixth gear are identical, and the number of teeth of the fifth gear is 1.5-2.5 times that of the teeth of the sixth gear.
Preferably, in any one of the above schemes, the range hood is a ceiling-mounted range hood.
Compared with the prior art, the invention has the advantages that: the smoke collecting hood and the guide plate of the range hood can swing relative to the air inlet to change the distribution of the negative pressure area of the air inlet area, and the smoke collecting hood and the guide plate can swing synchronously under the driving of the driving mechanism, so that the smoke collecting hood and the guide plate swing by corresponding angles according to different oil smoke amounts, the negative pressure area is closer to a cooking area, the oil smoke is firstly buffered by the guide plate before the oil smoke is diffused, and then the oil smoke is sucked away, the oil smoke is prevented from escaping, and the oil smoke suction effect is greatly improved.
Drawings
Fig. 1 is a schematic structural diagram of a range hood according to an embodiment of the present invention in a shutdown state;
FIG. 2 is a schematic structural view of a left cooking stove in a cooking and small oil smoke state according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of the cooking of the left side oven with a large smoke state according to the embodiment of the present invention;
FIG. 4 is a schematic structural diagram of the embodiment of the present invention during double-sided cooking with the same amount of cooking fumes on two sides;
FIG. 5 is a schematic structural diagram of the embodiment of the present invention in a double-sided cooking state with a large amount of cooking fumes on the right side;
FIG. 6 is a schematic structural diagram of a driving mechanism according to an embodiment of the present invention;
FIG. 7 is an enlarged view of portion A of FIG. 6;
fig. 8 is a partial structural schematic view of a driving mechanism according to an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
As shown in fig. 1 to 5, the range hood in this embodiment is a top-suction range hood, which includes a fan frame 1 and a smoke collecting hood disposed below the fan frame 1, a fan (not shown in the drawings) is installed inside the fan frame 1, a guide plate is installed below an air inlet of the range hood, the smoke collecting hood and the guide plate can both swing relative to the air inlet to change distribution of a negative pressure region in the air inlet region, and the smoke collecting hood and the guide plate can swing synchronously under the driving of a driving mechanism.
In this embodiment, the fume collecting cover is composed of three parts, namely a fixed fume collecting cover 20, a left movable fume collecting cover 21 and a right movable fume collecting cover 22. Wherein, the fixed fume collecting hood 20 is installed at the bottom of the fan frame 1 and horizontally arranged, and the left movable fume collecting hood 21 and the right movable fume collecting hood 22 are respectively and rotatably connected at the left and right sides of the fixed fume collecting hood 20. As shown in fig. 1, in the non-starting state, the left movable smoke collecting hood 21 and the right movable smoke collecting hood 22 are both horizontally arranged, and in the starting state, the left movable smoke collecting hood 21 and the right movable smoke collecting hood 22 can swing downwards relative to the fixed smoke collecting hood 20, and the maximum swing angle is 30 °.
A screen assembly 4 is installed inside the fixed fume collecting hood 20. The filter screen assembly 4 has a left air inlet 41 and a right air inlet 42, the planes of the left air inlet 41 and the right air inlet 42 are inclined outward from bottom to top, and the left air inlet 41 and the right air inlet 42 form an air inlet of the range hood. The bottom of the filter screen component 4 is provided with strip-shaped oil cups 5 which are distributed in the front-back direction, and the vertical projections of the inner side edge of the left guide plate 31 and the inner side edge of the right guide plate 32 fall into the strip-shaped oil cups 5, so that oil drops on the guide plates and the filter screen component 4 can smoothly flow into the strip-shaped oil cups 5.
The baffles include a left baffle 31 and a right baffle 32. The left air deflector 31 is matched with the left air inlet 41, and the right air deflector 32 is matched with the right air inlet 42. The inside portion of left side guide plate 31 and the inside portion of right side guide plate 32 all rotate to be connected on the filter screen subassembly 4 to, left side guide plate 31 links with left side activity collection petticoat pipe 21 mutually, and right side guide plate 32 links with right side activity collection petticoat pipe 22 mutually.
As shown in fig. 1, in the non-start-up state, the left air guide plate 31 and the right air guide plate 32 respectively cover the left air inlet 41 and the right air inlet 42, so that the air inlet of the range hood is closed. After the guide plate covers the air inlet, the appearance of the range hood in a shutdown state is simpler, and the function of preventing the smoke from flowing backwards and the smell from flowing backwards can be achieved. Under the power-on state, left side guide plate 31 and right side guide plate 32 can the downswing, and left side guide plate 31 and right side guide plate 32 are 60 from the maximum angle of the position downswing under the power-on state.
As shown in fig. 6 to 8, the driving mechanism of the present embodiment is installed on the back of the range hood, and specifically includes a first driving mechanism 61 and a second driving mechanism 62 that work independently from each other, wherein the first driving mechanism 61 is used to drive the left movable smoke collecting hood 21 and the left deflector 31 to swing synchronously, and the second driving mechanism 62 is used to drive the right movable smoke collecting hood 22 and the right deflector 32 to swing synchronously.
The first driving mechanism 61 and the second driving mechanism 62 have the same structure, and the first driving mechanism 61 is taken as an example, and the following is specifically described:
the first drive mechanism 61 includes a motor 610, a first gear 611, a second gear 612, a third gear 613, a fourth gear 614, a fifth gear 615, a sixth gear 616, a first rack 617, a second rack 618, and a third rack 619. The motor 610 is mounted on the back of the blower housing 1, the first gear 611 is mounted on the output shaft of the motor 610, the second gear 612, the third gear 613 and the fourth gear 614 are coaxially arranged on the back of the fixed fume collecting hood 20 from back to front in sequence, the second gear 612 is positioned right below the first gear 611, the first rack 617 is arranged on the first gear 611 and the second gear 612, the fifth gear 615 is arranged on the outer side of the third gear 613 and is at the same level with the third gear 613, the second rack 618 is arranged on the third gear 613 and the fifth gear 615, the left movable fume collecting hood 21 and the right movable fume collecting hood 22 are arranged on the output shaft of the fifth gear 615 and are driven by the fifth gear 615 to swing, the sixth gear 616 is arranged right below the fourth gear 614, the third rack 619 is arranged on the fourth gear 614 and the sixth gear 616, and the left flow guide plate 31 and the right flow guide plate 32 are arranged on the output shaft of the sixth gear 616 and are driven by the sixth gear 616 to swing.
In order to enable the movable fume collecting hood and the deflector to have different swing strokes, the third gear 613 and the fourth gear 614 of the embodiment have the same structure, the tooth pitches of the second rack 618 and the third rack 619 are the same, the tooth pitches of the fifth gear 615 and the sixth gear 616 are the same, and the number of teeth of the fifth gear 615 is 2 times that of the sixth gear 616. Thus, the swing angle of the left guide plate 31 is 2 times of the swing angle of the left movable smoke collecting hood 21 and the swing angle of the right guide plate 32 is 2 times of the swing angle of the right movable smoke collecting hood 22 by the rotation of the gear and the rack.
When the driving mechanism works, the motor 610 is started to drive the first gear 611 to rotate, and under the drive of the first rack 617, the second gear 612 and the first gear 611 rotate synchronously, and further, the third gear 613 and the fourth gear 614 rotate synchronously with the second gear 612; meanwhile, under the driving of the second rack 618, the fifth gear 615 and the third gear 613 rotate synchronously, and under the driving of the third rack 619, the sixth gear 616 and the fourth gear 614 rotate synchronously, so as to drive the left movable smoke collecting hood 21 and the left deflector 31 to swing synchronously. The swing principle of the right movable fume collecting hood 22 and the right deflector 32 is the same and will not be described.
As shown in fig. 2, the left side oven 71 cooks and has less oil smoke, at this time, under the driving of the first driving mechanism 61, the left side movable smoke collecting hood 21 swings downward about 15 °, and meanwhile, the left side guide plate 31 swings downward about 30 ° to a horizontal position, the negative pressure region is arranged at the bottom, the oil smoke is buffered by the left side guide plate 31 and enters into the cavity of the left side movable smoke collecting hood 21, the inner inclined surface of the left side movable smoke collecting hood 21 can guide the oil smoke to move to the left side air inlet 41 side, so as to more rapidly suck the oil smoke away, prevent the oil smoke from escaping, meanwhile, the right side guide plate 32 at the non-cooking side keeps a closed state, and can ensure that the effective air volume is used at the left side, namely the cooking side, and improve the oil smoke suction effect.
As shown in fig. 3, the left side oven 71 cooks and has a large oil smoke, at this time, the left movable smoke collecting hood 21 and the left guide plate 31 continue to swing downwards, the left movable smoke collecting hood 21 swings downwards by 30 degrees, the left guide plate 31 swings downwards by 60 degrees, so that the negative pressure region is placed downwards more closely, the left guide plate 31 contacts the oil smoke earlier, the drainage and buffering effects are achieved, and the oil smoke escape risk is reduced. Meanwhile, the right guide plate 32 is still closed, so that the effective air quantity is distributed on the left side, and the oil smoke absorption effect is improved.
As shown in fig. 4, when the cooking is performed in the double range, when the amounts of fumes in the left range 71 and the right range 72 are the same, the left movable fume collecting hood 21 and the right movable fume collecting hood 22 are swung down to the same angle, and the left deflector 31 and the right deflector 32 are also swung down to the same angle, so that the fume suction effect in the left and right ranges is ensured.
Because the first driving mechanism 61 and the second driving mechanism 62 work independently, when the oil smoke volume of the left and right kitchen ranges is different, the movement of the guide plate and the movable smoke collecting hood on the two sides can be differentiated. As shown in fig. 5, the left side oil smoke is smaller, the swing angle of the left side movable smoke collecting cover 21 and the left side guide plate 31 is smaller, the right side oil smoke is larger, and the swing angle of the right side movable smoke collecting cover 22 and the right side guide plate 32 is larger, so that the flow distribution effect is achieved by adjusting the size of the air inlet area, the air volume on the right side is larger, and the oil smoke absorption capacity is stronger.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for a person skilled in the art, many modifications or improvements may be made to the present invention without departing from the principle of the present invention, for example, the number of teeth of the fifth gear may be designed to be 1.5 to 2.5 times the number of teeth of the sixth gear as required, so as to correspondingly adjust the ratio of the swing angle of the movable smoke collecting hood and the deflector during the movement, which are all considered to be within the protection scope of the present invention.
Claims (13)
1. The utility model provides a range hood, includes fan frame (1) and locates the collection petticoat pipe of fan frame below, fan frame (1) internally mounted has the fan, installs guide plate, its characterized in that in the below of range hood air intake: collection petticoat pipe and guide plate homoenergetic relative air intake swing and change the regional negative pressure district distribution of air inlet, and, collection petticoat pipe and guide plate can be in actuating mechanism's drive synchronous oscillation down, the collection petticoat pipe is including installing fixed collection petticoat pipe (20) in fan frame bottom and locating left side activity collection petticoat pipe (21), right side activity collection petticoat pipe (22) of fixed collection petticoat pipe left and right both sides respectively, the range hood air intake is located in fixed collection petticoat pipe (20), the medial part of left side activity collection petticoat pipe (21) and the medial part of right side activity collection petticoat pipe (22) all rotate to be connected in on fixed collection petticoat pipe (20) install filter screen subassembly (4) in fixed collection petticoat pipe (20), filter screen subassembly (4) are including left side air intake (41) and right side air intake (42) that constitute the range hood air intake, the guide plate includes left side air intake guide plate (31) with left side air intake (41) matched with and advances the air with the right side air Mouth (42) matched with right side guide plate (32), the interior side of left side guide plate (31) and the interior side of right side guide plate (32) all rotate to be connected on filter screen subassembly (4), and, left side guide plate (31) with left side activity collection petticoat pipe (21) links mutually, right side guide plate (32) with right side activity collection petticoat pipe (22) links mutually.
2. The range hood of claim 1, wherein: under the state of not starting up, the equal level setting of left side activity collection petticoat pipe (21) and right side activity collection petticoat pipe (22), under the state of starting up, left side activity collection petticoat pipe (21) and right side activity collection petticoat pipe (22) homoenergetic relatively fixed collection petticoat pipe (20) downward swinging.
3. The range hood of claim 2, wherein: the maximum angle of downward swing of the left movable smoke collecting hood (21) and the right movable smoke collecting hood (22) is 30 degrees.
4. The range hood of claim 1, wherein: the swing angle of the left guide plate (31) is 1.5-2.5 times of the swing angle of the left movable smoke collecting hood (21), and the swing angle of the right guide plate (32) is 1.5-2.5 times of the swing angle of the right movable smoke collecting hood (22).
5. The range hood of claim 1, wherein: and in the non-starting state, the left guide plate (31) and the right guide plate (32) respectively cover the left air inlet (41) and the right air inlet (42).
6. The range hood of claim 5, wherein: under the start-up state, left side guide plate (31) and right side guide plate (32) can the downswing, and left side guide plate (31) and right side guide plate (32) are 60 from the position maximum angle of downswing under the non-start-up state.
7. The range hood of claim 1, wherein: the plane of left side air intake (41) and right side air intake (42) is from all down and go up the slant setting of inclining outward the strip oil cup (5) of distributing to the front and back are installed to the bottom of filter screen subassembly (4), the vertical projection of the inboard side of left side guide plate (31) and the inboard side of right side guide plate (32) falls into in the strip oil cup (5).
8. The range hood of claim 1, wherein: the driving mechanism comprises a first driving mechanism (61) and a second driving mechanism (62) which work independently, the first driving mechanism (61) is used for driving the left movable smoke collecting hood (21) and the left guide plate (31) to synchronously swing, and the second driving mechanism (62) is used for driving the right movable smoke collecting hood (22) and the right guide plate (32) to synchronously swing.
9. The range hood of claim 8, wherein: the first driving mechanism (61) and the second driving mechanism (62) each comprise a motor (610), a first gear (611), a second gear (612), a third gear (613), a fourth gear (614), a fifth gear (615), a sixth gear (616), a first rack (617), a second rack (618) and a third rack (619), the first gear (611) is mounted on an output shaft of the motor (610), the second gear (612), the third gear (613) and the fourth gear (614) are coaxially arranged in the front-back direction and are located below the first gear (611), the first rack (617) is mounted on the first gear (611) and the second gear (612), the fifth gear (615) is located on the outer side of the third gear (613), the second rack (618) is mounted on the third gear (613) and the fifth gear (615), the left movable smoke collecting hood (21) and the right movable smoke collecting hood (22) are installed on an output shaft of a fifth gear (615) and swing under the driving of the fifth gear (615), a sixth gear (616) is arranged below a fourth gear (614), a third rack (619) is installed on the fourth gear (614) and the sixth gear (616), and a left guide plate (31) and a right guide plate (32) are installed on the output shaft of the sixth gear (616) and swing under the driving of the sixth gear (616).
10. The range hood of claim 9, wherein: the second gear (612) is located right below the first gear (611), the third gear (613) and the fifth gear (615) are located at the same level, and the sixth gear (616) is located right below the fourth gear (614).
11. The range hood of claim 9, wherein: the motor (610) is installed on the back of the fan frame (1), and the second gear (612), the third gear (613) and the fourth gear (614) are sequentially arranged from back to front and installed on the back of the fixed smoke collecting hood (20).
12. The range hood of claim 9, wherein: the third gear (613) and the fourth gear (614) are identical in structure, the tooth pitches of the second rack (618) and the third rack (619) are identical, the tooth pitches of the fifth gear (615) and the sixth gear (616) are identical, and the tooth number of the fifth gear (615) is 1.5-2.5 times that of the sixth gear (616).
13. The range hood according to any one of claims 1 to 12, wherein: the range hood is a top suction type range hood.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811415871.4A CN111219757B (en) | 2018-11-26 | 2018-11-26 | Fume exhaust fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811415871.4A CN111219757B (en) | 2018-11-26 | 2018-11-26 | Fume exhaust fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111219757A CN111219757A (en) | 2020-06-02 |
| CN111219757B true CN111219757B (en) | 2021-11-12 |
Family
ID=70827787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811415871.4A Active CN111219757B (en) | 2018-11-26 | 2018-11-26 | Fume exhaust fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111219757B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114763915B (en) * | 2021-01-11 | 2023-10-20 | 宁波方太厨具有限公司 | Range hood and control method thereof |
| CN114763914B (en) * | 2021-01-11 | 2023-10-20 | 宁波方太厨具有限公司 | Range hood and control method thereof |
| CN114763913A (en) * | 2021-01-11 | 2022-07-19 | 宁波方太厨具有限公司 | Range hood and control method thereof |
| CN115218231A (en) * | 2021-04-19 | 2022-10-21 | 芜湖美的厨卫电器制造有限公司 | Smoke exhaust ventilator |
| CN113390117B (en) * | 2021-06-21 | 2022-08-26 | 华帝股份有限公司 | Open-close plate structure of range hood |
| CN113639292B (en) * | 2021-08-31 | 2023-04-14 | 宁波方太厨具有限公司 | Range hood and control method thereof |
| WO2023071048A1 (en) * | 2021-10-27 | 2023-05-04 | 佛山市顺德区美的洗涤电器制造有限公司 | Range hood |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWM368776U (en) * | 2009-07-13 | 2009-11-11 | Bo-Cang Chen | Lifting-and-lowering flow-guide plate device for range hood |
| CN204201982U (en) * | 2014-10-13 | 2015-03-11 | 宁波方太厨具有限公司 | Top-sucking kitchen ventilator |
| CN206073204U (en) * | 2016-09-28 | 2017-04-05 | 宁波方太厨具有限公司 | A kind of range hood |
| DE102016208840A1 (en) * | 2016-05-23 | 2017-11-23 | BSH Hausgeräte GmbH | Extractor hood and diffuser |
| CN207230679U (en) * | 2017-09-30 | 2018-04-13 | 宁波方太厨具有限公司 | A kind of range hood |
| CN108458383A (en) * | 2018-03-30 | 2018-08-28 | 广东美的厨房电器制造有限公司 | Range hood |
-
2018
- 2018-11-26 CN CN201811415871.4A patent/CN111219757B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWM368776U (en) * | 2009-07-13 | 2009-11-11 | Bo-Cang Chen | Lifting-and-lowering flow-guide plate device for range hood |
| CN204201982U (en) * | 2014-10-13 | 2015-03-11 | 宁波方太厨具有限公司 | Top-sucking kitchen ventilator |
| DE102016208840A1 (en) * | 2016-05-23 | 2017-11-23 | BSH Hausgeräte GmbH | Extractor hood and diffuser |
| CN206073204U (en) * | 2016-09-28 | 2017-04-05 | 宁波方太厨具有限公司 | A kind of range hood |
| CN207230679U (en) * | 2017-09-30 | 2018-04-13 | 宁波方太厨具有限公司 | A kind of range hood |
| CN108458383A (en) * | 2018-03-30 | 2018-08-28 | 广东美的厨房电器制造有限公司 | Range hood |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111219757A (en) | 2020-06-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111219757B (en) | Fume exhaust fan | |
| CN211625389U (en) | Fume exhaust fan | |
| CN201407700Y (en) | Side draught low-row integrated cooker | |
| CN113108345B (en) | Range hood, working method of range hood and kitchen appliance | |
| CN201401849Y (en) | Range hood utilizing air curtain generating device to prevent oil smoke escaping | |
| CN111435000A (en) | Double air intake range hood | |
| CN110887087B (en) | Case assembly and oil fume purification device | |
| CN110631065A (en) | Side-draft range hood and working method thereof | |
| CN209355322U (en) | Hidden kitchen ventilator | |
| CN215523451U (en) | Integrated kitchen aircraft nose and integrated kitchen | |
| CN111412496B (en) | Integrated range hood | |
| CN201014618Y (en) | Oil fume wind curtain machine | |
| CN207849474U (en) | A kind of range hood | |
| CN207407413U (en) | A kind of range hood | |
| CN220551978U (en) | Fume exhauster | |
| CN220287544U (en) | Fume exhauster | |
| CN214009311U (en) | Mounting structure of range hood for soil stove | |
| CN2182949Y (en) | Inclind cover type cooking fume removing machine | |
| CN218864262U (en) | Cooking fume exhauster | |
| CN111434999B (en) | Double air intake range hood | |
| CN109764373A (en) | A kind of range hood | |
| CN207751032U (en) | A kind of range hood | |
| CN211600838U (en) | Hood with air curtain for fume extraction | |
| CN216079981U (en) | Fume exhaust fan | |
| CN217876002U (en) | Integrated kitchen |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |