CN110296446B - Oil guiding structure of range hood - Google Patents
Oil guiding structure of range hood Download PDFInfo
- Publication number
- CN110296446B CN110296446B CN201810245716.6A CN201810245716A CN110296446B CN 110296446 B CN110296446 B CN 110296446B CN 201810245716 A CN201810245716 A CN 201810245716A CN 110296446 B CN110296446 B CN 110296446B
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- China
- Prior art keywords
- plate
- oil guide
- rectifying plate
- range hood
- rectifying
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- 239000003517 fume Substances 0.000 claims abstract description 42
- 230000007246 mechanism Effects 0.000 claims abstract description 9
- 230000005540 biological transmission Effects 0.000 claims description 20
- 239000000779 smoke Substances 0.000 claims description 9
- 238000010411 cooking Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 101150038956 cup-4 gene Proteins 0.000 description 1
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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
Abstract
The invention relates to an oil guiding structure of a range hood, which comprises: the front side surface of the fume collecting hood (1) is provided with an air inlet (11); the rectification plate (2) is obliquely arranged at the front side of the air inlet (11) of the fume collecting hood (1); the driving mechanism (3) is used for driving the rectifying plate (2) to open or close the air inlet (11); characterized by further comprising: the oil guide plate (5) is arranged below the rectifying plate (2), the front edge of the oil guide plate (5) is connected with the rectifying plate (2), and the rear edge of the oil guide plate passes through the air inlet (11) and is always accommodated in the inner cavity of the fume collecting hood (1).
Description
Technical Field
The invention relates to the field of range hoods, in particular to an oil guide structure of a range hood.
Background
In order to improve the effect of the existing side-draft range hood, a rectifying plate is obliquely arranged at the front of the fume collecting hood and corresponds to the position of the air inlet of the fume collecting hood. When the range hood does not work, the rectifying plate blocks the air inlet; when the range hood works, the rectifying plate moves forwards to open the air inlet, and a preset distance is kept between the rectifying plate and the fume collecting hood, so that a fume channel for supplying fume is formed between the fume collecting hood and the rectifying plate; before the oil fume enters the oil fume channel, the oil fume firstly touches the rectifying plate, and the oil fume is separated on the rectifying plate for the first time.
Because the area of the rectifying plate is large, a large amount of oil smoke is easily condensed into oil drops on the inner surface and the outer surface of the rectifying plate, when the cooking time is long, the condensed oil smoke can be collected together and drop on the cooking bench, even drop into a cooking pot, the user experience is affected, and the sanitation problem is brought.
Disclosure of Invention
The invention aims to solve the technical problem of providing an oil guide structure of a range hood, which can guide oil drops on a rectifying plate into an oil cup.
The technical scheme adopted for solving the technical problems is as follows: this range hood leads oily structure includes:
The front side surface of the fume collecting hood is provided with an air inlet;
The rectification plate is obliquely arranged at the front side of the air inlet of the fume collecting hood;
the driving mechanism is used for driving the rectifying plate to open or close the air inlet;
Characterized by further comprising:
the oil guide plate is arranged below the rectifying plate, the front edge of the oil guide plate is connected with the rectifying plate, and the rear edge of the oil guide plate penetrates through the air inlet and is always accommodated in the inner cavity of the fume collecting hood.
Preferably, the oil guide plate may be provided with a through hole for oil smoke to pass through.
The oil guide plate comprises a first part connected with the rectifying plate and a second part positioned below the rectifying plate; the upper end edge of the second part is connected with the lower end edge of the first part and protrudes outwards from the outer surface of the rectifying plate, and in a working state, the second part is obliquely arranged relative to the rectifying plate.
Further, the second portion of the oil guide plate may include a first connection plate connected to the first portion and a second connection plate hinged to the first connection plate;
The through hole is arranged on the second connecting plate.
After this design makes the rectifying plate close, the second connecting plate can rotate for first connecting plate to avoid the greasy dirt that the rectifying plate closed and accumulated on the oil guide plate to drip outside the oil cup because of inclination problem.
Preferably, the plurality of through holes are arranged on the second connecting plate at intervals.
Preferably, the periphery of each through hole is connected with an inward folded edge, and an oil guide groove is formed between the folded edges of the adjacent through holes. The structure further avoids oil drops from the oil guide plate to the cooking bench.
The through holes are arranged in the height direction of the second connecting plate and are parallel to each other.
In order to enable oil dirt to be guided more smoothly, the first connecting plate and the second connecting plate are positioned on the same plane in the state that the rectifying plate is opened;
The included angle between the first connecting plate and the horizontal plane is 4-20 degrees;
the included angle between the rectifying plate and the horizontal plane is 30-50 degrees.
As a further improvement, the first connecting plate is hinged with the first connecting plate through a pivot, a torsion spring is sleeved on the pivot, and two ends of the torsion spring respectively abut against the surfaces of the first connecting plate and the second connecting plate;
A limiting block for supporting the second connecting plate is arranged on the inner surface of the fume collecting hood; and in the closed state of the rectifying plate, the second connecting plate is in a horizontal state under the action of the limiting block. The design of the torsion spring further ensures that the first connecting plate and the second connecting plate are positioned on the same plane in the working state, thereby ensuring the guiding route of the greasy dirt; the design of the limiting block further limits the inclination angle of the second connecting plate after the rectifying plate is closed, the gap between the rectifying plate and the panel of the fume collecting hood after the rectifying plate is closed is more uniform, cleaning and arrangement are easier, and the texture of the range hood is improved.
Preferably, the first portion of the oil guide plate may include a back plate attached to the back surface of the rectifying plate and a supporting plate connected to the lower end edge of the back plate, and the supporting plate is located below the lower end edge of the rectifying plate and is turned outwards to be connected to the upper end edge of the second portion. The design also has good diversion effect on the greasy dirt on the back of the rectifying plate. In the above schemes, there may be various driving mechanisms capable of driving the rectifying plate to move upwards and outwards, preferably, the driving mechanism includes a driving device, the driving device drives a connecting rod, the connecting rod is in driving connection with one end of a first crank, and the other end of the first crank is in driving connection with the rectifying plate;
And when the rectifying plate is opened under the drive of the crank, the rectifying plate moves outwards and upwards relative to the air inlet.
Preferably, the driving device is an electric push rod, the output end of the electric push rod is hinged with the first end of the connecting rod, and the second end of the connecting rod is in driving connection with the transmission shaft; the transmission shaft is rotatably connected to the inner wall of the fume collecting hood;
The first cranks are two, are connected to the transmission shaft at intervals and can rotate along with the rotation of the transmission shaft. The design is more balanced to the driving force of the rectifying plate, so that the movement of the rectifying plate is more stable.
Further, the two first cranks can be respectively hinged with two transmission rods, and the transmission rods are in driving connection with the rectifying plate; two second cranks are hinged to the two transmission rods respectively, and the other ends of the second cranks are hinged to the inner wall of the fume collecting hood.
As a further improvement of the above embodiments, the driving mechanism may further include a third crank, one end of the third crank being hinged to the second crank, and a second end of the third crank being hinged to the second connection plate. The design of the third crank can pull the second connecting plate upwards when the rectifying plate is closed, so that the oil stains on the second connecting plate are prevented from dripping outside the oil cup, and the second connecting plate can be reversely inclined, so that the oil stains on the second connecting plate reversely move, drip from a gap between the first connecting plate and the second connecting plate and further enter the oil cup.
Compared with the prior art, the oil guide structure of the range hood provided by the invention guides the oil drops accumulated on the rectifying plate into the oil cup through the design of the oil guide plate, so that the oil drops on the rectifying plate are prevented from dripping into the cooking bench and the pot, the use experience of a user is improved, and the use sanitation is ensured; and the oil guide plate is designed into two parts, the panel does not need to be provided with oversized abdication holes because of the problem of movement interference between the oil guide plate, namely, the problem of oil dripping of the rectifying plate is solved, meanwhile, the gap between the rectifying plate and the panel of the fume collecting hood after the rectifying plate is closed is small, and the problem of backward flow of the fume in the fume exhaust system after the rectifying plate is closed is avoided.
Drawings
Fig. 1 is a schematic longitudinal sectional view of a rectifier plate in an open state according to embodiment 1 of the present invention;
fig. 2 is a schematic longitudinal sectional view of the embodiment 1 of the present invention in a closed state of the rectifying plate;
fig. 3 is a schematic perspective view of an assembling structure of a rectifying plate and an oil guide plate in embodiment 1 of the present invention;
Fig. 4 is a schematic longitudinal sectional view of a rectifier plate in an open state according to embodiment 2 of the invention;
fig. 5 is a schematic longitudinal sectional view of the rectifying plate of embodiment 2 of the present invention in a closed state.
Detailed Description
The invention is described in further detail below with reference to the embodiments of the drawings.
Example 1
As shown in fig. 1 to 3, the oil guiding structure of the range hood comprises:
the fume collecting hood 1 comprises a back plate 12, side plates 13 connected to two sides of the back plate 12, and a front side plate 14 obliquely connected between the side plates 13 and on the back plate 12, wherein an air inlet 11 is arranged on the front side plate 14.
The rectification plate 2 is used for guiding the oil smoke and is obliquely arranged at the front side of the fume collecting hood 1 corresponding to the air inlet 11 on the fume collecting hood 1; the angle between the rectifying plate 2 and the horizontal plane is 30-50 degrees, and the angle is 40 degrees in the embodiment.
The driving mechanism 3 is connected to the fume collecting hood 1, is connected with the rectifying plate 2 and is used for driving the rectifying plate 2 to move so as to open or close the air inlet 11; comprising the following steps:
The driving device 31 can be various, and the embodiment adopts an electric push rod; the electric push rod is connected to the side plate 13 of the fume collecting hood, the output end of the electric push rod is hinged with the first end of the connecting rod 32, and the second end of the connecting rod is in driving connection with the transmission shaft 34; the transmission shaft 34 is rotatably connected to the inner wall of the fume collecting hood 1 through two brackets 38;
the two first cranks 33 are connected to the drive shaft 34 at intervals and are rotatable with the rotation of said drive shaft 34.
The two first cranks 33 are respectively hinged with two transmission rods 37, and the two transmission rods 37 are fixed on the rectifying plate 2; two second cranks 35 are respectively hinged on the two transmission rods 37, and the other ends of the second cranks 35 are hinged on the inner wall of the fume collecting hood.
In this embodiment, the first crank 33 and the second crank 35 are identical in structure, and the curvature of the cranks causes the rectifying plate to move outwardly and upwardly relative to the air inlet 11 when the rectifying plate is opened.
The oil cup 4 is connected to the lower end of the fume collecting hood 1 and is used for containing oil drops separated during fume exhaust of the range hood.
The oil guide plate 5 is connected with the rectifying plate 2 and can move along with the rectifying plate 2; comprising a first portion 51 for connecting said rectifying plate 2 and a second portion 52 located below said rectifying plate 2.
Wherein the first part 51 comprises a back plate 511 attached to the back surface of the rectifying plate and a supporting plate 512 connected to the lower end edge of the back plate 511, and the supporting plate 521 is located below the lower end edge of the rectifying plate 2 and is folded outwards to connect the upper end edge of the second part 52.
The second portion 52 includes a first connection plate 521 connected to the first portion 51 and a second connection plate 522 hinged to the first connection plate 521; in this embodiment, the first connecting plate 521 is hinged to the first connecting plate 521 through a pivot 55, a torsion spring 56 is sleeved on the pivot 55, and two ends of the torsion spring 56 respectively abut against the surfaces of the first connecting plate 521 and the second connecting plate 522; in the open state of the rectifying plate 2, the first connecting plate 521 and the second connecting plate 522 are located on the same plane.
The upper end edge of the first connecting plate 521 is connected with the outer end edge of the supporting plate 512 and slightly protrudes outside the outer surface of the rectifying plate 2, and in the working state, the included angle between the second portion 52 and the bottom surface of the rectifying plate is an acute angle; preferably, the angle between the first connecting plate 521 and the horizontal plane is 4 ° to 20 °, and in this embodiment, 11 °.
The second connecting plate 522 is provided with a plurality of through holes 53 through which the oil smoke passes at intervals, and each through hole 53 is arranged along the height direction of the oil guide plate 5 and is parallel to each other. In order to avoid dripping of oil drops on the oil guide plate, the periphery of each through hole 53 is connected with an inwardly turned folded edge 54, and an oil guide groove 57 is formed between the folded edges 52 of adjacent through holes.
In order to prevent oil drops on the second connecting plate from dripping in the closed state of the rectifying plate, a limiting block 15 for supporting the second connecting plate 522 is arranged on the inner surface of the fume collecting hood 1 in the embodiment; so that the rectifying plate 2 is in a closed state, and the second connecting plate 522 is in a horizontal state under the action of the limiting block 15.
The working principle of the oil guide structure of the range hood is described as follows:
when the range hood works, the electric push rod positively pushes the connecting rod, the connecting rod drives the transmission shaft to rotate, so that the first crank is driven to rotate, the first crank drives the rectifying plate to move outwards and also move upwards, and the movement track of the rectifying plate is arc-shaped from bottom to top; the rectifying plate drives the second crank to rotate, and the rectifying plate is stably supported through the two pairs of cranks.
The rectifying plate drives the oil guide plate to move outwards and upwards together, the second connecting plate is gradually unfolded under the action of the torsion spring and the limiting block, an included angle of 180 degrees is formed between the second connecting plate and the first connecting plate, and the second connecting plate and the first connecting plate are located in the same plane.
During cooking, the oil smoke is sucked from each through hole and is discharged by a centrifugal fan (not shown in the figure) of the range hood through the air inlet. The greasy dirt on the surface of the rectifying plate can flow onto the second connecting plate along the rectifying plate, and due to the design of an included angle between the second connecting plate and the horizontal plane, the greasy dirt can only be guided onto the second connecting plate and can not drop onto the cooking bench downwards, and the greasy dirt on the surface of the backboard drops onto the second connecting plate along the backboard. The greasy dirt drips onto the inner surface of the panel of the fume collecting hood via the flow guide of the second connecting plate, flows into the oil cup via the fume collecting hood, or directly drips into the oil cup. The problem of oil dripping on the outer surface of the rectifying plate, especially the rectifying plate, is well solved.
When the range hood is closed, the electric push rod acts reversely, the two pairs of cranks move reversely, the rectifying plate is driven to move from top to bottom in an arc shape, and finally the air inlet is closed; the second connecting plate rotates along the comb needle and is in a horizontal state when the rectifying plate is closed under the support of the limiting block, so that oil stains on the second connecting plate are prevented from dripping outside the oil cup; and the second connecting plate can be self-adaptive to the gap between the rectifying plate and the panel, so that the problem of backflow of oil smoke when the gap is overlarge is avoided.
Example 2
As shown in fig. 4 and 5, in the present embodiment, compared with embodiment 1, a stopper is not provided, but a third crank 36 is hinged to the second crank 35, which is described in detail as follows:
The two third cranks 36 are respectively and correspondingly connected with the two second cranks, one end of each third crank is hinged on the shank body of the second crank 35, and the second end of each third crank 36 is hinged with the second connecting plate 522.
When the range hood works, the second crank is moved to drive the third crank to move, and the tail end position of the connecting plate is limited by the third crank, so that oil stains on the second connecting plate drop on the inner surface of the fume collecting hood panel or directly drop into the oil cup; when the rectifying plate is closed, the third crank pulls the second connecting plate to turn up, after the rectifying plate is closed in place, the second connecting plate is reversely inclined, the narrow space at the lower part of the fume collecting hood can be better adapted, oil stains on the second connecting plate reversely move, and oil stains drop onto the inner surface of the panel from a gap between the first connecting plate and the second connecting plate.
The remainder was the same as in example 1.
Claims (13)
1. The oil guide structure of the range hood comprises:
The smoke collecting hood (1) comprises a back plate (12), side plates (13) connected to two sides of the back plate (12) and a front side plate (14) obliquely connected between the side plates (13) and on the back plate (12), wherein an air inlet (11) is formed in the front side plate (14);
The rectification plate (2) is obliquely arranged at the front side of the air inlet (11) of the fume collecting hood (1);
The driving mechanism (3) is used for driving the rectifying plate (2) to open or close the air inlet (11);
Characterized by further comprising:
The oil guide plate (5) is arranged below the rectifying plate (2), the front edge of the oil guide plate (5) is connected with the rectifying plate (2), and the rear edge of the oil guide plate passes through the air inlet (11) and is always accommodated in the inner cavity of the fume collecting hood (1);
The oil guide plate (5) comprises a first part (51) connected with the rectifying plate (2) and a second part (52) positioned below the rectifying plate (2); the upper end edge of the second part (52) is connected with the lower end edge of the first part (51) and protrudes outwards from the outer surface of the rectifying plate (2), and in the working state, the second part (52) is obliquely arranged relative to the rectifying plate (2).
2. The oil guide structure of the range hood according to claim 1, characterized in that the oil guide plate (5) is provided with a through hole (53) for oil smoke to pass through.
3. The range hood oil guide structure according to claim 2, characterized in that the second portion (52) of the oil guide plate (5) comprises a first connection plate (521) connected with the first portion (51) and a second connection plate (522) hinged with the first connection plate (521);
the through hole (53) is provided on the second connection plate (522).
4. A range hood oil guiding structure according to claim 3, characterized in that in the open state of the rectifying plate (2), the first connecting plate (521) and the second connecting plate (522) are located on the same plane;
the included angle between the first connecting plate (521) and the horizontal plane is 4-20 degrees;
the included angle between the rectifying plate (2) and the horizontal plane is 30-50 degrees.
5. The oil guiding structure of a range hood according to claim 4, characterized in that the first connecting plate (521) and the second connecting plate (522) are hinged through a pivot (55), a torsion spring (56) is sleeved on the pivot (55), and two ends of the torsion spring (56) respectively abut against the surfaces of the first connecting plate (521) and the second connecting plate (522);
a limiting block (15) for supporting the second connecting plate (522) is arranged on the inner surface of the fume collecting hood (1); and in the closing state of the rectifying plate (2), the second connecting plate (522) is in a horizontal state under the action of the limiting block (15).
6. The oil guiding structure of the range hood according to claim 5, wherein a plurality of through holes (53) are arranged on the second connecting plate (522) at intervals.
7. The oil guide structure of the range hood according to claim 6, wherein the periphery of each through hole (53) is connected with folded edges which are folded inwards, and an oil guide groove (57) is formed between the folded edges of the adjacent through holes.
8. The oil guide structure of a range hood according to claim 7, wherein the through holes (53) are disposed in a height direction of the second connection plate (522) and are parallel to each other.
9. The oil guide structure of a range hood according to claim 5, wherein the first portion (51) of the oil guide plate comprises a back plate attached to the back surface of the rectifying plate and a support plate (512) connected to the lower end edge of the back plate, and the support plate (512) is located below the lower end edge of the rectifying plate (2) and is folded outwards to connect the upper end edge of the second portion (52).
10. -The range hood oil guiding structure according to any one of claims 1 to 9, characterized in that the driving mechanism (3) comprises a driving device (31), the driving device (31) is in driving connection with a connecting rod (32), the connecting rod (32) is in driving connection with one end of a first crank (33), and the other end of the first crank (33) is in driving connection with the rectifying plate (2);
When the rectifying plate (2) is opened under the drive of the first crank (33), the rectifying plate moves outwards and upwards relative to the air inlet (11).
11. The oil guide structure of the range hood according to claim 10, wherein the driving device (31) is an electric push rod, an output end of the electric push rod is hinged with a first end of the connecting rod (32), and a second end of the connecting rod is in driving connection with a transmission shaft (34); the transmission shaft (34) is rotationally connected to the inner wall of the fume collecting hood (1);
The two first cranks (33) are connected to the transmission shaft (34) at intervals and can rotate along with the rotation of the transmission shaft (34).
12. The oil guide structure of the range hood according to claim 11, characterized in that two first cranks (33) are respectively hinged with two transmission rods (37), and the transmission rods (37) are in driving connection with the rectifying plate (2); two second cranks (35) are hinged on the two transmission rods (37) respectively, and the other ends of the second cranks (35) are hinged on the inner wall of the fume collecting hood.
13. The oil guide structure of a range hood according to claim 12, wherein the driving mechanism further comprises a third crank (36), one end of the third crank (36) is hinged to the second crank (35), and a second end of the third crank (36) is hinged to a second connecting plate (522).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810245716.6A CN110296446B (en) | 2018-03-23 | 2018-03-23 | Oil guiding structure of range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810245716.6A CN110296446B (en) | 2018-03-23 | 2018-03-23 | Oil guiding structure of range hood |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110296446A CN110296446A (en) | 2019-10-01 |
| CN110296446B true CN110296446B (en) | 2024-05-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810245716.6A Active CN110296446B (en) | 2018-03-23 | 2018-03-23 | Oil guiding structure of range hood |
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| Country | Link |
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| CN (1) | CN110296446B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050048051A (en) * | 2003-11-18 | 2005-05-24 | 주식회사 엔텍 | Range-hood |
| CN203549962U (en) * | 2013-10-17 | 2014-04-16 | 宁波方太厨具有限公司 | Oil guide structure of side drought type range hood |
| CN105371327A (en) * | 2015-10-20 | 2016-03-02 | 浙江爱瑞卡普田电器有限公司 | Side suction type extractor hood and control method |
| CN206330187U (en) * | 2016-12-29 | 2017-07-14 | 宁波方太厨具有限公司 | A kind of single air-inlet range hood |
| CN207112949U (en) * | 2017-09-08 | 2018-03-16 | 宁波方太厨具有限公司 | A kind of oil-collecting of near-suction type oil smoke suction machine smoke deflector, Unloading Device |
| CN208566785U (en) * | 2018-03-23 | 2019-03-01 | 宁波方太厨具有限公司 | Range hood oil guide structure |
-
2018
- 2018-03-23 CN CN201810245716.6A patent/CN110296446B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050048051A (en) * | 2003-11-18 | 2005-05-24 | 주식회사 엔텍 | Range-hood |
| CN203549962U (en) * | 2013-10-17 | 2014-04-16 | 宁波方太厨具有限公司 | Oil guide structure of side drought type range hood |
| CN105371327A (en) * | 2015-10-20 | 2016-03-02 | 浙江爱瑞卡普田电器有限公司 | Side suction type extractor hood and control method |
| CN206330187U (en) * | 2016-12-29 | 2017-07-14 | 宁波方太厨具有限公司 | A kind of single air-inlet range hood |
| CN207112949U (en) * | 2017-09-08 | 2018-03-16 | 宁波方太厨具有限公司 | A kind of oil-collecting of near-suction type oil smoke suction machine smoke deflector, Unloading Device |
| CN208566785U (en) * | 2018-03-23 | 2019-03-01 | 宁波方太厨具有限公司 | Range hood oil guide structure |
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| Publication number | Publication date |
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| CN110296446A (en) | 2019-10-01 |
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