Range hood

Abstract

The present invention relates to the technical field of household appliances, and particularly relates to a range hood, which comprises: an air cabinet, the lower end of the air cabinet being the air inlet of the air cabinet; an oil net, arranged at the air inlet of the air cabinet, and an oil channel being provided on the oil net; an oil collection structure, communicated with the oil channel for collecting grease; a smoke baffle, arranged in the air cabinet, at least two smoke baffles being provided, which are combined to cover the air inlet, and each smoke baffle having a first position for closing a part of the air inlet and a second position for opening a part of the air inlet; a driving mechanism, arranged corresponding to each smoke baffle, each driving mechanism being connected to the corresponding side smoke baffle for driving the smoke baffle to move between the first position and the second position. By arranging the smoke baffle in the air cabinet and controlling the movement of the smoke baffle by the driving mechanism, the area of the air inlet can be flexibly controlled, and the smoking effect can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and particularly relates to a range hood. Background Art

[0002] Range hoods have become one of the indispensable kitchen appliances in modern families. Generally, range hoods include top - suction type and side - suction type. Due to advantages such as neatness, lightness, and small space occupation, top - suction range hoods are more and more widely used. However, at present, the suction of range hoods is very limited due to factors such as fan power, volume, and noise control. For the common situation of two household cooking stove burners on the left and right, a range hood is disclosed in the prior art, which is provided with multiple smoke guide plates. According to the actual oil - smoke concentration in different areas, the distance between the corresponding smoke guide plate and the stove top is adjusted, the air inlet area is flexibly adjusted, and the smoking effect is improved.

[0003] However, the problems of the above - mentioned prior - art structure are as follows: ① The grease on the smoke guide plate cannot fall into the oil cup during operation, resulting in the possibility of grease dripping during cooking, affecting the cooking experience and easily causing potential safety hazards; ② The liftable smoke guide plate is not conducive to the setting of the oil cup; ③ The rectangular smoke guide plate of the top - suction range hood is lifted in parallel, which is easy to block the user's line of sight; ④ The lifting movement of the rectangular smoke guide plate occupies space and is not conducive to using taller cooking utensils. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome one of the defects of the prior - art range hood that the grease on the smoke guide plate cannot fall into the oil cup, the setting of the smoke guide plate is not conducive to the setting of the oil cup, the lifting of the smoke guide plate is easy to block the user's line of sight, and the lifting of the smoke guide plate occupies a large amount of space, so as to provide a range hood.

[0005] To solve the above - mentioned technical problem, a range hood provided by the present invention is characterized in that it includes: an air cabinet, the lower end of the air cabinet is the air inlet of the air cabinet; an oil net, arranged at the air inlet of the air cabinet, and the oil net is provided with an oil channel; an oil - collecting structure, communicated with the oil channel for collecting grease; a smoke - blocking plate, arranged in the air cabinet, at least two smoke - blocking plates are provided, which are combined to cover the air inlet, and each smoke - blocking plate has a first position for closing part of the air inlet and a second position for opening part of the air inlet; a driving mechanism, arranged corresponding to each smoke - blocking plate, and each driving mechanism is connected to the corresponding - side smoke - blocking plate for driving the smoke - blocking plate to move between the first position and the second position.

[0006] Optionally, when the smoke baffle is in the first position, the smoke baffle is inclined. One end of the smoke baffle close to the side wall of the air handling unit is the first end, and one end of the smoke baffle at the air inlet is the second end. The horizontal plane where the first end is located is higher than the horizontal plane where the second end is located.

[0007] Optionally, the first end of the smoke baffle is slidably arranged in the vertical direction, and the second end of the smoke baffle is slidably arranged at the air inlet in the horizontal direction. When the smoke baffle is in the second position, a first included angle is formed between the smoke baffle and the longitudinal direction.

[0008] Optionally, a first guide rail is provided on the side wall of the air handling unit, and the length of the first guide rail extends in the vertical direction. The first end of the smoke baffle is arranged in the first guide rail; and / or, a second guide rail is provided at the air inlet, and the length of the second guide rail extends in the horizontal direction. The second end of the smoke baffle is arranged in the second guide rail.

[0009] Optionally, a first rotating shaft is provided at the first end of the smoke baffle. There are two symmetrically arranged first guide rails, and both ends of the first rotating shaft are respectively arranged in the first guide rails;

[0010] and / or, a second rotating shaft is provided at the second end of the smoke baffle. There are two symmetrically arranged second guide rails, and both ends of the second rotating shaft are respectively arranged in the second guide rails.

[0011] Optionally, an oil guiding structure for guiding grease to flow onto the oil net is provided on the smoke baffle.

[0012] Optionally, the oil guiding structure includes a first oil guiding groove provided at the second end of the smoke baffle. The first oil guiding groove extends from the front side to the rear side, and the front side of the first oil guiding groove is higher than the rear side.

[0013] Optionally, the oil guiding structure further includes a second oil guiding groove provided at the first end of the smoke baffle.

[0014] Optionally, the smoke baffle is provided with two connecting parts for connecting with the driving mechanism, and one connecting part is arranged close to the first end of the smoke baffle, and the other connecting part is arranged close to the second end of the smoke baffle.

[0015] Optionally, the two connecting parts are symmetrically arranged.

[0016] Optionally, the driving mechanism includes an electric push rod. One end of the electric push rod is hinged to the air handling unit, and the other end is hinged to the connecting part.

[0017] Optionally, the smoke baffle further has a third position between the first position and the second position.

[0018] Optionally, the range hood further includes a control component, and the control component is communicatively connected to the driving mechanism.

[0019] The technical solution of the present invention has the following advantages:

[0020] 1. For the range hood provided by the present invention, the user can select to open the corresponding number of smoke baffle plates according to the actual cooking situation. For example, when the user only uses the left burner for stir-frying, or uses the left burner for stir-frying and the right burner for steaming rice, etc., the concentration or particles of the oil fume on the left side are greater than those on the right side. At this time, the smoke baffle plate corresponding to the left burner is controlled to open. At this time, only the part corresponding to the left burner of the air inlet is opened. On the premise that the fan power of the range hood is certain, the air flow rate is certain. However, due to the reduction of the area of the air inlet, the air flow velocity increases, and the static pressure also increases accordingly, and the smoking effect is better. Therefore, by arranging the smoke baffle plate in the air cabinet and controlling the movement of the smoke baffle plate by the driving mechanism, the area of the air inlet can be flexibly controlled, and the smoking effect can be improved; and because the smoke baffle plate is arranged in the air cabinet and above the oil mesh, during the process of the driving mechanism driving the smoke baffle plate to move from the second position to the first position, the smoke baffle plate will be inclined with respect to the horizontal plane, and the inclined direction of the smoke baffle plate extends towards the oil mesh, so that the grease on the smoke baffle plate can smoothly fall onto the oil mesh and fall into the oil collection structure through the oil channel on the oil mesh. At the same time, the setting of the smoke baffle plate does not affect the setting of the oil collection structure, does not block the user's line of sight, and does not need to occupy the space above the stove. Description of the Drawings

[0021] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0022] Figure 1 It is a schematic structural diagram of the range hood provided in the embodiment of the present invention when all the smoke baffle plates are in the second position;

[0023] Figure 2 It is a schematic structural diagram of the range hood provided in the embodiment of the present invention when the left smoke baffle plate is in the first position and the right smoke baffle plate is in the second position;

[0024] Figure 3 It is a schematic structural diagram of the range hood provided in the embodiment of the present invention when the left smoke baffle plate is in the second position and the right smoke baffle plate is in the first position;

[0025] Figure 4Schematic diagram of the range hood provided in the embodiment of the present invention when the left baffle is in the first position and the right baffle is in the first position;

[0026] Figure 5 is Figure 1 partial enlarged view of part A in

[0027] Figure 6 is Figure 1 partial structural schematic diagram of

[0028] Figure 7 is Figure 2 partial structural schematic diagram of

[0029] Figure 8 is the mechanism schematic diagram of the baffle.

[0030] Explanation of reference numerals:

[0031] 1, air cabinet; 2, fan; 3, volute; 4, oil net; 41, oil passage; 5, baffle; 51, first rotating shaft; 52, second rotating shaft; 53, connecting part; 54, first oil guide groove; 55, second oil guide groove; 6, smoke collecting hood; 7, electric push rod; 8, first guide rail; 9, second guide rail. Detailed implementation manners

[0032] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0033] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0035] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0036] Embodiment

[0037] This embodiment provides an oil fume extractor. In one embodiment, the oil fume extractor includes a wind cabinet 1, an oil screen 4, an oil collection structure, a smoke baffle 5, and a driving mechanism.

[0038] Among them, the lower end of the wind cabinet 1 is the air inlet of the wind cabinet 1. The lower end of the wind cabinet 1 refers to the end facing the cooking range, as Figures 1 to 4 shown. A volute 3 is provided inside the wind cabinet, and a fan 2 is arranged in the volute 3; the oil screen 4 is arranged at the air inlet of the wind cabinet 1, as Figure 5 shown. An oil channel 41 is provided on the oil screen 4; the oil collection structure is arranged on the smoke collecting hood 6 and is communicated with the oil channel 41 for collecting grease; the smoke baffle 5 is arranged inside the wind cabinet 1. There are at least two smoke baffles 5, which are combined to cover the air inlet. Each smoke baffle 5 has a first position for closing part of the air inlet and a second position for opening part of the air inlet; the driving mechanism is arranged corresponding to the smoke baffle 5 one by one, and each driving mechanism is connected to the corresponding side of the smoke baffle 5 for driving the smoke baffle 5 to move between the first position and the second position.

[0039] According to the actual cooking situation, the user can choose to stir-fry with only the left or right burner, or stir-fry with the left burner and steam rice with the right burner, etc. If only the left burner is used for stir-frying, the oil fume concentration or oil fume particles on the left side must be greater than those on the right side. However, the performance of the oil fume extractor is set for the entire cooking range. In order to suck more oil fume on one side, the overall air intake needs to be increased, resulting in a certain degree of waste. In this embodiment, according to the actual cooking situation, the user can choose to open the corresponding number of smoke baffles 5. For example, when the user only uses the left burner for stir-frying, or stir-fries with the left burner and steams rice with the right burner, etc., the oil fume concentration or oil fume particles on the left side are greater than those on the right side. At this time, control the smoke baffle 5 corresponding to the left burner to open. At this time, as Figure 3As shown, only the area corresponding to the left burner of the air inlet is open. On the premise that the power of the blower 2 is constant, the air flow rate is constant. Since the area of the air inlet decreases, the air velocity increases, and the static pressure also increases accordingly, resulting in a better smoking effect. Therefore, by arranging the smoke baffle 5 in the air cabinet 1 and controlling the movement of the smoke baffle 5 by the driving mechanism, the area of the air inlet can be flexibly controlled to improve the smoking effect. And since the smoke baffle 5 is arranged in the air cabinet 1 and above the oil screen 4, during the process of the driving mechanism driving the smoke baffle 5 to move from the second position to the first position, the smoke baffle 5 will be inclined with respect to the horizontal plane, and the inclined direction of the smoke baffle extends towards the oil screen 4, so that the grease on the smoke baffle 5 can smoothly fall onto the oil screen 4 and fall into the oil collection structure through the oil passage 41 on the oil screen 4. At the same time, the setting of the smoke baffle 5 does not affect the setting of the oil collection structure, does not block the user's line of sight, and does not need to occupy the space above the stove head.

[0040] The oil collection structure can specifically be an oil cup or a drawer-type oil collection box.

[0041] On the basis of the above-mentioned embodiment, in a preferred embodiment, the smoke baffle 5 further has a third position between the first position and the second position. The third position is a position between closing and opening a corresponding part of the air inlet, that is, a position where a part of the air inlet is locally opened. In this embodiment, the area of the air inlet can be further flexibly adjusted to control any air intake volume and further improve the smoking effect.

[0042] On the basis of the above-mentioned embodiment, in a preferred embodiment, when the smoke baffle 5 is in the first position, the smoke baffle 5 is inclined. The end of the smoke baffle 5 close to the side wall of the air cabinet is the first end, and the end of the smoke baffle 5 at the air inlet is the second end. The horizontal plane where the first end is located is higher than the horizontal plane where the second end is located. In this embodiment, when the smoke baffle 5 is in the first position, the smoke baffle 5 is in an inclined state, having a certain angle with the horizontal plane. The preferred angle is 30 degrees to 45 degrees. The slope is suitable to accelerate the flow of the grease, so that the grease flows along the smoke baffle 5 onto the oil screen 4 and then falls into the oil collection structure through the oil passage 41 on the oil screen 4, facilitating the collection of the grease.

[0043] On the basis of the above embodiments, in a preferred embodiment, the first end of the smoke baffle 5 is slidably arranged in the vertical direction, and the second end of the smoke baffle 5 is slidably arranged at the air inlet in the horizontal direction. When the smoke baffle 5 is in the second position, a first included angle is formed between the smoke baffle 5 and the longitudinal direction, and the first included angle is preferably 0 - 15 degrees. In this embodiment, when it is necessary to switch the smoke baffle 5 from the first position to the second position, the driving mechanism drives the first end of the smoke baffle 5 to slide vertically upward, and the second end of the smoke baffle 5 moves horizontally toward the side away from the center of the air inlet, and a corresponding part of the air inlet of the smoke baffle 5 is gradually opened; conversely, when it is necessary to switch the smoke baffle 5 from the second position to the first position, the driving mechanism drives the first end of the smoke baffle 5 to slide vertically downward, and the second end of the smoke baffle 5 moves horizontally toward the side close to the center of the air inlet, and a corresponding part of the air inlet of the smoke baffle 5 is gradually closed. With such a setting in this embodiment, the movement of the smoke baffle 5 does not affect the volute 3 in the air handling unit 1, and there is no need to increase the space in the air handling unit 1. In an alternative embodiment, the smoke baffle 5 is rotatably arranged at the air inlet. In this embodiment, the rotating shaft of the smoke baffle 5 is arranged on the side wall of the air handling unit 1 or at a position close to the side wall, and the driving mechanism is connected to the rotating shaft of the smoke baffle 5 to drive the smoke baffle 5 to rotate. In another alternative embodiment, the smoke baffle 5 adopts a telescopic structure. When the smoke baffle 5 is fully extended, the smoke baffle 5 closes a corresponding part of the air inlet, and when the smoke baffle 5 is fully retracted, the smoke baffle 5 opens a corresponding part of the air inlet. The driving mechanism is used to drive the telescopic movement of the smoke baffle 5.

[0044] On the basis of the above embodiments, in a preferred embodiment, a first guide rail 8 is arranged on the side wall of the air handling unit, the length of the first guide rail 8 extends in the vertical direction, and the first end of the smoke baffle 5 is arranged in the first guide rail 8; a second guide rail 9 is arranged at the air inlet, and the length of the second guide rail 9 extends in the horizontal direction, and the second end of the smoke baffle 5 is arranged in the second guide rail 9. In this embodiment, the setting of the first guide rail 8 can ensure the movement track of the first end of the smoke baffle 5, and by arranging the first guide rail 8 on the side wall of the air handling unit, it can ensure that the gap between the first end of the smoke baffle 5 and the air handling unit is small, and oil fume will not flow into the air handling unit 1 through the gap between the smoke baffle 5 and the air handling unit. The setting of the second guide rail 9 can ensure the movement track of the second end of the smoke baffle 5 and ensure the smooth movement of the smoke baffle 5. In other alternative embodiments, only the first guide rail 8 can be arranged, the length of the first guide rail 8 extends in the vertical direction, and the first end of the smoke baffle 5 is arranged in the first guide rail 8; or, only the second guide rail 9 is arranged, the length of the second guide rail 9 extends in the horizontal direction, and the second end of the smoke baffle 5 is arranged in the second guide rail 9.

[0045] On the basis of the above embodiment, in a preferred embodiment, a first rotating shaft 51 is provided at the first end of the smoke shield 5, two first guide rails 8 are symmetrically arranged, and both ends of the first rotating shaft 51 are respectively arranged in the first guide rail 8; a second rotating shaft 52 is provided at the second end of the smoke shield 5, two second guide rails 9 are symmetrically arranged, and both ends of the second rotating shaft 52 are respectively arranged in the second guide rail 9. In the present embodiment, each smoke damper 5 corresponds to four guide rails, and the four guide rails can also be combined into two L-shaped guide rails. By arranging the two ends of the first rotating shaft 51 at the first end of the smoke damper 5 in the first guide rail 8, and arranging the two ends of the second rotating shaft 52 at the second end of the smoke damper 5 in the second guide rail 9, the movement trajectory of the smoke damper 5 is limited by the movement trajectory of the two ends of the first rotating shaft 51 in the first guide rail 8 and the movement trajectory of the two ends of the second rotating shaft 52 in the second guide rail 9, which can further ensure the smooth movement of the smoke damper 5, realize the control of the air inlet area and the air inlet volume, and ensure that the gap between the first end of the smoke damper 5 and the side wall of the wind cabinet 1 is small, so that the oil smoke will not flow into the wind cabinet 1 through the gap between the smoke damper 5 and the side wall of the wind cabinet 1. In other replaceable embodiments, the first rotating shaft 51 may be provided only at the first end of the smoke baffle 5, two first guide rails 8 may be symmetrically provided, and both ends of the first rotating shaft 51 may be respectively provided in the first guide rail 8, and the second guide rail 9 may not be provided or only one second guide rail 9 may be provided; or, the first guide rail 8 may not be provided or only one first guide rail 8 may be provided, a second rotating shaft 52 may be provided at the second end of the smoke baffle 5, two second guide rails 9 may be symmetrically provided, and both ends of the second rotating shaft 52 may be respectively provided in the second guide rail 9.

[0046] In a more preferred embodiment, the smoke baffle is provided with an oil guide structure capable of guiding the grease to flow to the oil net 4. The setting of the oil guide structure can further guide the grease to flow to the oil net 4, and then fall into the oil collecting structure through the oil channel 41 on the oil net 4.

[0047] In one embodiment, the oil guide structure includes a first oil guide groove 54 disposed at the second end of the smoke baffle 5, the first oil guide groove 54 extending from the front side to the rear side, and the front side of the first oil guide groove 54 is higher than the rear side. It should be noted that the front side refers to the side of the range hood facing the user after installation, and the rear side refers to the side away from the user. By making the front side of the first oil guide groove 54 higher than the rear side, grease can flow from front to back along the first oil guide groove 54, ensuring that the grease flows to the oil net 4 and flows into the oil collecting structure along the oil channel 41 on the oil net 4, ensuring the integrity of the oil path.

[0048] In a preferred embodiment, the oil guide structure further includes a second oil guide groove 55 provided at the first end of the smoke shield 5. In this embodiment, by providing the second oil guide groove 55 at the second end of the smoke shield 5, the smoke shield 5 can still guide the grease to the oil net 4 after being switched in the up and down directions, which is convenient for installation and use.

[0049] Based on the above embodiments, in a preferred embodiment, the smoke baffle 5 is provided with two connecting parts 53 for connecting with the driving mechanism. One connecting part 53 is arranged near the first end of the smoke baffle 5, and the other connecting part 53 is arranged near the second end of the smoke baffle 5. Setting two connecting parts 53 facilitates the connection with the driving mechanism. After the smoke baffle 5 is reversed in the up-down direction, it can still be connected to the driving mechanism, which is convenient for installation and use. Especially when only the first guide rail 8 is provided and the second guide rail 9 is not provided, the driving mechanism can be connected to the connecting part 53 near the second end of the smoke baffle 5, so as to smoothly drive the smoke baffle 5 from the second position to the first position.

[0050] As Figures 6 to 8 shown, each connecting part 53 includes two mounting plates arranged at intervals. The mounting plates are perpendicular to the smoke baffle 5. Hinge holes are provided on the mounting plates. The axis of the hinge holes is perpendicular to the movement directions of both the first end and the second end of the smoke baffle 5. The driving mechanism is hinged in the hinge holes and is located between the two mounting plates.

[0051] In a preferred embodiment, the two connecting parts 53 are symmetrically arranged. The symmetrical arrangement of the two connecting parts 53 is convenient for processing on the one hand, and on the other hand, it can avoid interference between the driving mechanism and the volute 3 when the smoke baffle 5 is reversed in the up-down direction during installation.

[0052] Further referring to Figure 8 , the connecting part 53 is arranged at a position near the front side of the smoke baffle 5, which can avoid interference between the driving mechanism and the volute 3.

[0053] Based on the above embodiments, in a preferred embodiment, the driving mechanism includes an electric push rod 7. One end of the electric push rod 7 is hinged to the air cabinet, and the other end is hinged to the connecting part 53. Specifically, a mounting seat can be arranged on the top wall of the air cabinet, and one end of the electric push rod 7 is hinged to the mounting seat. When the smoke baffle 5 is in the second position, the push rod of the electric push rod 7 is in a retracted state, and the smoke baffle 5 is pulled up, and the air inlet on this side is in an open state. At this time, the oil fume can smoothly enter the interior of the air cabinet 1 through the air inlet on this side, which may infect the push rod. Since the push rod is in a retracted state in this state, it can well protect the push rod from being infected by the oil fume; during the process of the push rod of the electric push rod 7 extending outwards, it drives the smoke baffle 5 to move closer to the middle of the air inlet, and the air inlet on this side is gradually closed. In other alternative embodiments, the driving mechanism includes a driving cylinder. The bottom of the cylinder body of the driving cylinder can be hinged to the air cabinet, and the end of the cylinder rod of the driving cylinder is hinged to the connecting part 53.

[0054] Based on the above embodiments, in a preferred embodiment, there are two smoke baffles 5, and they are symmetrically arranged. Specifically referring to Figures 1 to 4, a smoke baffle 5 is provided on the left side, and another smoke baffle 5 is symmetrically provided on the right side. Usually, a gas stove is provided with two burners on the left and right. The range hood of this embodiment can be generally applicable to the gas stoves in the prior art. It should be noted that the left and right refer to the left and right sides of the user when facing the range hood.

[0055] On the basis of the above embodiment, in a preferred embodiment, the range hood further includes a control component, and the control component is communicatively connected to the driving mechanism. The communicative connection can specifically be a wired communicative connection or a wireless communicative connection, such as 2G, 3G, 4G, 5G connection, WIFI connection, Bluetooth connection, etc. Through the control of the control component, the following can be achieved Figure 4 in which both the left smoke baffle 5 and the right smoke baffle 5 are in the first position, or Figure 2 in which the left smoke baffle 5 is in the first position and the right smoke baffle 5 is in the second position, or Figure 3 in which the right smoke baffle 5 is in the first position and the left smoke baffle 5 is in the second position, or Figure 1 in which both the left smoke baffle 5 and the right smoke baffle 5 are in the second position and other states, and the smoke baffle 5 can also be controlled to stop at any position between the first position and the second position to achieve arbitrary control of the air intake volume, flexibly adjust the air inlet area, and improve the smoking effect.

[0056] Obviously, the above embodiments are merely examples given for clear illustration and are not limitations on the embodiments. For those of ordinary skill in the art, other different forms of changes or variations can be made on the basis of the above description. It is not necessary and impossible to enumerate all the embodiments here. And the obvious changes or variations derived therefrom are still within the protection scope of the present invention.

Claims

1. An oil fume suction machine, characterized in that, Including: A wind cabinet (1), the lower end of the wind cabinet being the air inlet of the wind cabinet (1); An oil screen (4), arranged at the air inlet of the wind cabinet (1), and an oil passage (41) being provided on the oil screen (4); An oil collecting structure, communicating with the oil passage (41) for collecting grease; A smoke baffle (5), arranged inside the wind cabinet (1), at least two smoke baffles (5) being provided, covering the air inlet in combination, and each smoke baffle (5) having a first position for closing part of the air inlet and a second position for opening part of the air inlet; A driving mechanism, arranged corresponding to each smoke baffle (5), each driving mechanism being connected to the corresponding side of the smoke baffle (5) for driving the smoke baffle (5) to move between the first position and the second position.

2. The range hood according to claim 1, characterized in that, When the smoke baffle (5) is in the first position, the smoke baffle (5) is inclined, one end of the smoke baffle (5) close to the side wall of the wind cabinet (1) being the first end, and one end of the smoke baffle (5) at the air inlet being the second end, the horizontal plane where the first end is located being higher than the horizontal plane where the second end is located.

3. The range hood according to claim 2, wherein, The first end of the smoke baffle (5) is slidably arranged in the vertical direction, the second end of the smoke baffle (5) is slidably arranged in the horizontal direction at the air inlet, and when the smoke baffle (5) is in the second position, a first included angle is formed between the smoke baffle (5) and the longitudinal direction.

4. The range hood according to claim 3, wherein A first guide rail (8) is provided on the side wall of the wind cabinet (1), the length of the first guide rail (8) extending in the vertical direction, and the first end of the smoke baffle (5) being arranged in the first guide rail (8); And / or, a second guide rail (9) is provided at the air inlet, the length of the second guide rail (9) extending in the horizontal direction, and the second end of the smoke baffle (5) being arranged in the second guide rail (9).

5. The range hood according to claim 4, characterized in that, A first rotating shaft (51) is provided at the first end of the smoke baffle (5), two first guide rails (8) being symmetrically arranged, and both ends of the first rotating shaft (51) being respectively arranged in the first guide rails (8); And / or, a second rotating shaft (52) is provided at the second end of the smoke baffle (5), two second guide rails (9) being symmetrically arranged, and both ends of the second rotating shaft (52) being respectively arranged in the second guide rails (9).

6. The range hood according to any one of claims 2-5, characterized in that, A grease guiding structure capable of guiding grease to flow onto the oil screen (4) is provided on the smoke baffle (5).

7. The range hood according to claim 6, wherein, The grease guiding structure includes a first grease guiding groove (54) arranged at the second end of the smoke baffle (5), the first grease guiding groove (54) extending from the front side to the rear side, and the front side of the first grease guiding groove (54) being higher than the rear side.

8. The range hood according to claim 7, characterized in that, The grease guiding structure further includes a second grease guiding groove (55) arranged at the first end of the smoke baffle (5).

9. The range hood according to any one of claims 2 to 5, characterized in that, Two connecting parts (53) for connecting with the driving mechanism are provided on the smoke baffle (5), one connecting part (53) being arranged close to the first end of the smoke baffle (5), and the other connecting part (53) being arranged close to the second end of the smoke baffle (5).

10. The range hood according to claim 9, wherein, The two connecting parts (53) are symmetrically arranged.

11. The range hood according to claim 9, wherein, The driving mechanism includes an electric push rod (7), one end of the electric push rod (7) is hinged to the air handling unit (1), and the other end is hinged to the connecting portion (53).

12. The range hood according to any one of claims 1 to 5, characterized in that, The smoke baffle (5) further has a third position between the first position and the second position.

13. The range hood according to any one of claims 1 to 5, characterized in that, The range hood further includes a control component, and the control component is communicatively connected to the driving mechanism.

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