A range hood

Abstract

This invention provides a range hood, specifically relating to the field of kitchen equipment technology. The structure includes: a housing with an air inlet formed on a first surface; a panel assembly disposed on the housing and corresponding to the air inlet, the panel assembly comprising a first plate and a second plate, a first side of the first plate being connected to the housing via an elastic component, the first side being near the top of the housing, and the first plate at least partially covering the second plate; and a driving mechanism connected to the second plate for driving the second plate to move between a first position and a second position. The first position is used to fit the second plate against the housing, so that the panel assembly covers the air inlet; the second position is used to fit the second plate against the first plate, forming an air intake channel leading to the air inlet. This invention improves the smoke extraction effect.

Description

Technical Field

[0001] This invention relates to the field of kitchen equipment technology, and in particular to a range hood. Background Technology

[0002] Range hoods have become an indispensable kitchen appliance in modern homes. Generally, range hoods are categorized into top-mounted and side-mounted types. Side-mounted range hoods utilize the principle of vortex air pressure to absorb most of the cooking fumes close to the stove in an arc shape, reducing adverse health effects. Furthermore, since the power source is closer to the stove, the suction efficiency is not significantly reduced. Common side-mounted range hoods typically have front panels that are single-section, two-section, or three-section.

[0003] Two-section and three-section models are the most common. When the panel is opened, there is a certain gap between it and the range hood housing to avoid interference. There is a certain probability that the fumes will escape from the gap. In addition, for the three-section model, the bottom panel is fixed, which will block part of the air inlet, resulting in a reduction in the air intake area, affecting the air volume, and thus affecting the fume extraction effect. Summary of the Invention

[0004] To address at least one of the shortcomings of the prior art, the present invention provides a range hood, comprising:

[0005] A housing, wherein an air inlet is formed on the first surface of the housing;

[0006] A panel assembly is disposed on the housing and corresponds to the air inlet. The panel assembly includes a first plate and a second plate. A first side of the first plate is connected to the housing via an elastic component. The first side is the side near the top of the housing. The first plate at least partially covers the second plate.

[0007] A driving mechanism is connected to the second plate and is used to drive the second plate to move between a first position and a second position; the first position is used to fit the second plate against the housing so that the panel assembly covers the air inlet, and the second position is used to fit the second plate against the first plate to form an air inlet channel leading to the air inlet.

[0008] Optionally, the driving mechanism is further configured to drive the second plate to a third position to adjust the air inlet channel, wherein the third position is closer to the first side than the first position, and the second position is closer to the first side than the third position.

[0009] Optionally, the driving mechanism includes a drive motor, a first connecting rod, a second connecting rod, a third connecting rod, and a first rotating shaft. One end of the first connecting rod is connected to the housing via the first rotating shaft, and the other end of the first connecting rod is connected to the second plate. One end of the second connecting rod is connected to the drive motor, and the other end of the second connecting rod is connected to the first connecting rod via the third connecting rod.

[0010] Optionally, the drive mechanism is connected to the fourth position of the second plate; the range hood also includes an auxiliary mechanism, which includes a fourth connecting rod and a second rotating shaft. One end of the fourth connecting rod is connected to the housing through the second rotating shaft, and the other end of the fourth connecting rod is connected to the fifth position of the second plate. The fourth position and the fifth position are perpendicularly symmetrical on the second plate.

[0011] Optionally, the elastic component includes a third rotating shaft and an elastic element. A first bushing and a second bushing are spaced apart on the first side of the first plate. An elastic element is provided between the first bushing and the second bushing. One end of the elastic element is connected to the first plate. The third rotating shaft passes through the first bushing, the elastic element, and the second bushing in sequence. A notch matching the third rotating shaft is provided on the housing. The third rotating shaft engages with the notch.

[0012] Optionally, the two notches are symmetrically distributed on the housing, the two first bushings are symmetrically distributed on the first side of the first plate, and the two second bushings are symmetrically distributed on the first side of the first plate.

[0013] Optionally, the first surface of the housing has an opening, a panel bracket is provided at the opening, the panel bracket matches the opening, and the air inlet is disposed on the panel bracket;

[0014] The panel assembly is disposed on the second side of the panel bracket, which is the side of the panel bracket facing away from the housing; a fixed bracket is disposed on the third side of the panel bracket, which is opposite to the second side, and the driving mechanism is disposed on the fixed bracket.

[0015] Optionally, the position of the air inlet corresponds to the position of the first plate.

[0016] Optionally, the panel assembly further includes at least one third plate, which is closer to the top of the housing than the first plate.

[0017] Optionally, the bottom of the housing is provided with an open oil stain collector for collecting oil stains on the panel assembly.

[0018] By adopting the above technical solution, the present invention has the following beneficial effects:

[0019] This invention provides a range hood, including a housing, a panel assembly, and a drive mechanism. The housing has a first surface with an air inlet. The panel assembly is disposed on the housing and corresponds to the air inlet. The panel assembly includes a first plate and a second plate. A first side of the first plate is connected to the housing via an elastic component, and the first side is near the top of the housing. The first plate at least partially covers the second plate. The drive mechanism is connected to the second plate and is used to drive the second plate to move between a first position and a second position. The first position is used to fit the second plate against the housing so that the panel assembly covers the air inlet. The second position is used to fit the second plate against the first plate to form an air intake channel leading to the air inlet. In the above technical solution, since the first plate at least partially covers the second plate, when the drive mechanism moves the second plate to the second position to open the air inlet, the first plate will open along with the second plate, thereby achieving a larger air intake area, improving air volume and oil fume extraction effect, and without obstructing the user's operation and view; in addition, when the panel assembly is opened, the first plate is on top of the second plate, and there is no gap between the first edge of the first plate and the housing, preventing oil fumes from escaping through the gaps between the panels and improving the oil fume extraction effect; moreover, the second plate is hidden behind the first plate, preventing the second plate from being adhered to and splashed by oil fumes, reducing the user's cleaning area.

[0020] Other features and advantages of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. The same reference numerals usually represent the same parts. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of a range hood in working state according to an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of a range hood in a non-working state according to an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of another range hood in working state provided by an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the drive mechanism provided in an embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of the elastic component provided in an embodiment of the present invention.

[0027] The following is supplementary explanation of the attached figures:

[0028] 1. Housing; 2. Air inlet; 3. First plate; 4. Second plate; 5. Drive motor; 6. First connecting rod; 7. Second connecting rod; 8. Third connecting rod; 9. First rotating shaft; 10. Fourth connecting rod; 11. Second rotating shaft; 12. Third rotating shaft; 13. Elastic element; 14. First bushing; 15. Second bushing; 16. Panel bracket; 17. Fixed bracket; 18. Third plate; 19. Open-top oil stain collector. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0030] The term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the invention. In the description of the invention, it should be understood that the terms "upper," "lower," "top," "bottom," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," etc., are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein.

[0031] In existing side-suction range hoods, the most common front panels are two-section and three-section. To avoid interference when the panel is opened, there is a certain gap between it and the range hood housing. There is a certain probability that the fumes will escape through the gap. In addition, for the three-section type, the bottom panel is fixed, which will block part of the air inlet, resulting in a reduction in the air intake area, affecting the air volume, and thus affecting the fume extraction effect.

[0032] Therefore, embodiments of the present invention provide a side-suction range hood, see reference. Figure 1-2 Figures show a schematic diagram of a range hood in a working state and a schematic diagram of a range hood in a non-working state, respectively, according to embodiments of the present invention. As shown in the figures, the side-suction range hood includes:

[0033] The housing 1 has an air inlet 2 formed on its first surface. Specifically, according to the conventional placement of a range hood, the first surface is the side of the range hood housing 1 that is away from the wall, and the air inlet 2 can be set horizontally and vertically centered on the first surface.

[0034] The first surface is appropriately tilted to be closer to the fire source, thereby improving the fume absorption rate. The tilt angle of the first surface is generally between 30° and 45°, which is the angle between the first surface and the horizontal plane.

[0035] A panel assembly is disposed on the housing 1 and corresponds to the air inlet 2. Specifically, the panel assembly is disposed on the first side of the housing 1 and covers the air inlet 2.

[0036] The panel assembly includes a first plate 3 and a second plate 4. A first side of the first plate 3 is connected to the housing 1 via an elastic component. The first side is the side closest to the top of the housing 1. The first plate 3 at least partially covers the second plate 4. Specifically, the first plate 3 is located outside the second plate 4, and the second plate 4 is located between the first plate 3 and the housing 1. The coverage area of ​​the second plate 4 varies. When the panel assembly is closed, i.e., covering the air inlet 2, the area of ​​the first plate 3 covering the second plate 4 is minimal. When the panel assembly is open, the area of ​​the first plate 3 covering the second plate 4 is maximum, and may even completely cover it.

[0037] A drive mechanism, connected to the second plate 4, is used to drive the second plate 4 to move between a first position and a second position. The first position is used to fit the second plate 4 against the housing 1 so that the panel assembly covers the air inlet 2. The second position is used to fit the second plate 4 against the first plate 3 to form an air intake channel leading to the air inlet 2. Specifically, the drive mechanism can be connected to the back side of the second plate 4 inside the receiving cavity formed by the housing 1.

[0038] Specifically, in this embodiment of the invention, the first plate 3 at least partially covers the second plate 4, so that during the process of the driving mechanism driving the second plate 4 to the second position, the second plate 4 can push the first plate 3 to open together; the first side of the first plate 3 is connected to the housing 1, and the first plate 3 rotates around the first side during the opening process, so that there is never a gap between the first side of the first plate 3 and the housing 1.

[0039] The first edge of the first plate 3 is connected to the housing 1 via an elastic component. During the process of the driving mechanism driving the second plate 4 to the first position, the first plate 3 no longer has the supporting force applied by the second plate 4 below it, and returns to the first position together with the second plate 4 under the action of the elastic component. In a specific implementation, the elastic component may include a spring and a rotating shaft. The spring is sleeved on the rotating shaft and fixedly connected to the first plate 3 or the housing 1, so that the spring cannot rotate around the rotating shaft. The rotating shaft is used to connect the first plate 3 and the housing 1. During the rotation of the first plate 3 around the rotating shaft, the deformation of the spring is changed. During the rotation of the first plate 3 away from the housing 1, the deformation of the spring increases, so that during the movement of the second plate 4 towards the first position, the first plate 3 can return to the first position together with the second plate 4.

[0040] In practice, when the range hood is in operation, the drive mechanism drives the second plate 4 to move to the second position. The second plate 4 pushes the first plate 3 to rotate around the first side, exposing the air inlet 2. When the second plate 4 and the first plate 3 are in contact, the drive motor stops working, the position of the panel assembly is fixed, forming an air intake channel facing the air inlet 2. Opening the two panels increases the air intake area. There is no gap between the top of the air intake channel and the housing 1, which prevents the oil fumes from escaping and improves the oil fume absorption effect.

[0041] When the range hood is not in operation, the drive mechanism drives the second plate 4 to move towards the first position. Under the action of the elastic component, the first plate 3 rotates around the first side in the direction of movement of the second plate 4 until the second plate 4 returns to the first position. At this point, the drive motor stops working, the air inlet 2 is covered, and the air intake channel is closed.

[0042] In one possible implementation, the drive mechanism is also used to drive the second plate 4 to a third position to adjust the air intake channel, wherein the third position is closer to the first side than the first position, and the second position is closer to the first side than the third position.

[0043] For details, please refer to Figure 3 This is a schematic diagram of another range hood in working state provided by an embodiment of the present invention. In this embodiment of the present invention, the third position is between the first position and the second position. The third position can be any position between the first position and the second position. The air intake channel formed when the second plate 4 is in the third position is smaller than the air intake channel formed when the second plate 4 is in the second position.

[0044] In practice, when the range hood is in operation, the second plate 4 is in the second position, and the oil fume concentration decreases. The drive motor drives the second plate 4 to move to the third position. Under the action of the elastic component, the first plate 3 rotates around the first side in the direction of movement of the second plate 4 until the second plate 4 is in the third position. At this point, the drive motor stops working, the position of the panel assembly is fixed, and the air intake channel becomes smaller. When the range hood is not in operation, and the oil fume concentration is low, the drive motor drives the second plate 4 to move to the third position. The second plate 4 pushes the first plate 3 to rotate around the first side, exposing the air inlet 2. At this point, the drive motor stops working, the position of the panel assembly is fixed, and a smaller air intake channel is formed. Adjusting the size of the air intake channel according to the oil fume concentration concentrates the suction power, improving the oil fume extraction effect. There is no gap between the top of the air intake channel and the housing 1, preventing oil fume escape.

[0045] In one possible implementation, the drive mechanism includes a drive motor 5, a first connecting rod 6, a second connecting rod 7, a third connecting rod 8, and a first rotating shaft 9. One end of the first connecting rod 6 is connected to the housing 1 via the first rotating shaft 9, and the other end of the first connecting rod 6 is connected to the second plate 4. One end of the second connecting rod 7 is connected to the drive motor 5, and the other end of the second connecting rod 7 is connected to the first connecting rod 6 via the third connecting rod 8. In a specific implementation, the first connecting rod 6 can be connected to the middle position of the housing 1.

[0046] For details, please refer to Figure 4 This is a schematic diagram of the drive mechanism provided in an embodiment of the present invention. In this embodiment, one end of the first connecting rod 6 is connected to the housing 1 via a first rotating shaft 9, and the other end of the first connecting rod 6 is connected to the second plate 4, so that the second plate 4 can rotate around the first rotating shaft 9 via the first connecting rod 6. The drive motor 5 is connected to the first connecting rod 6 via the second connecting rod 7 and the third connecting rod 8 in sequence. During operation, the drive motor 5 drives the second connecting rod 7 to swing, the second connecting rod 7 drives the third connecting rod 8 to swing, the third connecting rod 8 drives the first connecting rod 6 to rotate around the first rotating shaft 9, and the first connecting rod 6 drives the second plate 4 to move.

[0047] Understandably, one or two drive mechanisms can be used. In the case of two drive mechanisms, a first drive mechanism and a second drive mechanism are used. The first drive mechanism is connected to a first drive position on the second plate 4, and the second drive mechanism is connected to a second drive position on the second plate 4. To ensure even force distribution on the second plate 4, the first and second drive positions are perpendicularly symmetrical on the second plate 4. For example, the first drive position can be located closer to one side of the second plate 4, and correspondingly, the second drive position is located closer to the opposite side, where the opposite side is perpendicular to the first side. The case of one drive mechanism can be further divided into two scenarios: first, a single drive mechanism is used, connected to the center of the second plate 4 to ensure even force distribution; second, a drive mechanism and an auxiliary mechanism are used, with their connection positions to the second plate 4 similar to the case of two drive mechanisms.

[0048] In one possible implementation, with a drive mechanism provided, to make the movement of the second plate 4 more stable, the drive mechanism can be connected to the fourth position of the second plate 4, and an auxiliary mechanism can be provided. The auxiliary mechanism includes a fourth link 10 and a second rotating shaft 11. One end of the fourth link 10 is connected to the housing 1 via the second rotating shaft 11, and the other end of the fourth link 10 is connected to the fifth position of the second plate 4. The fourth and fifth positions are vertically symmetrical on the second plate 4. For example, refer to... Figure 4 The fourth position can be the position close to the second side of the second plate 4, and correspondingly, the fifth position is the position close to the opposite side of the second side, wherein the second side is perpendicular to the first side of the first plate 3.

[0049] Specifically, in this embodiment of the invention, the driving mechanism is connected to the fourth position of the second plate 4, and the auxiliary mechanism is connected to the fifth position of the second plate 4. The fourth and fifth positions are perpendicularly symmetrical on the second plate 4, so that the support points of the second plate 4 are evenly distributed and can move stably. The auxiliary mechanism includes a fourth connecting rod 10 and a second rotating shaft 11. One end of the fourth connecting rod 10 is connected to the housing 1 through the second rotating shaft 11, and the other end of the fourth connecting rod 10 is connected to the second plate 4, so that the second plate 4 can rotate around the second rotating shaft 11 through the fourth connecting rod 10. The driving mechanism drives the second plate 4 to move, and the second plate 4 drives the fourth connecting rod 10 to rotate around the second rotating shaft 11.

[0050] In one possible implementation, the elastic component includes a third rotating shaft 12 and an elastic element 13. A first bushing 14 and a second bushing 15 are spaced apart on the first side of the first plate 3. An elastic element 13 is provided between the first bushing 14 and the second bushing 15. One end of the elastic element 13 is connected to the first plate 3. The third rotating shaft 12 passes through the first bushing 14, the elastic element 13 and the second bushing 15 in sequence. A notch matching the third rotating shaft 12 is provided on the housing 1. The third rotating shaft 12 engages with the notch.

[0051] For details, please refer to Figure 5 This is a schematic diagram of the structure of the elastic component provided in an embodiment of the present invention, namely the structure at the connection between the first plate 3 and the shell 1. In this embodiment, the first side of the first plate 3 is connected to the shell 1 through the elastic component, and one end of the elastic element 13 is connected to the first plate 3 to fix the elastic element 13 and prevent the elastic element 13 from rotating around the axis. The elastic component includes a third rotating shaft 12 and an elastic element 13. The first side of the first plate 3 is provided with a first bushing 14 and a second bushing 15 spaced apart. The third rotating shaft 12 passes through the first bushing 14, the elastic element 13 and the second bushing 15 in sequence, so that the elastic component is connected to the first plate 3. The shell 1 is provided with a notch that matches the third rotating shaft 12. The third rotating shaft 12 engages with the notch, so that the elastic component is connected to the shell 1, thereby the first plate 3 and the shell 1 are rotatably connected.

[0052] In practice, when the range hood is not in operation, the drive mechanism drives the second plate 4 to move toward the first position. Under the action of the elastic element 13, the first plate 3 rotates around the first side in the direction of movement of the second plate 4 until the panel assembly covers the air inlet 2, at which point the drive mechanism stops working.

[0053] In one possible implementation, two notches are symmetrically distributed on the housing 1, two first bushings 14 are symmetrically distributed on the first side of the first plate 3, and two second bushings 15 are symmetrically distributed on the first side of the first plate 3.

[0054] Specifically, in this embodiment of the invention, the first side of the first plate 3 is connected to the shell 1 through two elastic components, so that the connection between the first plate 3 and the shell 1 is firm, and the two third rotating shafts 12 share the damage caused to the first plate 3 during rotation, thus extending its service life.

[0055] In one possible implementation, the first surface of the housing 1 has an opening, and a panel support 16 is provided at the opening. The panel support 16 matches the opening, and an air inlet 2 is disposed on the panel support 16. Specifically, the size of the opening can be the same as the size of the first surface, and the air inlet 2 can be centrally located on the panel support 16.

[0056] The panel assembly is disposed on the second side of the panel bracket 16, which is the side of the panel bracket 16 facing away from the housing 1; a fixing bracket 17 is disposed on the third side of the panel bracket 16, which is opposite to the second side, and the drive mechanism is disposed on the fixing bracket 17. Specifically, the third side is the side of the panel bracket 16 facing the housing 1.

[0057] Specifically, in this embodiment of the invention, the first surface of the housing 1 has an opening, the panel support 16 covers the opening, the air inlet 2 is disposed on the panel support 16, and the panel assembly is disposed on the panel support 16, which facilitates the disassembly and maintenance of the range hood; a fixed support 17 is disposed on the panel support 16, and the driving mechanism is disposed on the fixed support 17, specifically the drive motor 5 and the first rotating shaft 9 are disposed on the fixed support 17; correspondingly, the auxiliary mechanism is also disposed on the fixed support 17, specifically the second rotating shaft 11 is disposed on the fixed support 17; in a specific implementation, two fixed supports 17 can be disposed, vertically and symmetrically distributed on the panel support 16, and the driving mechanism and the auxiliary mechanism are respectively disposed on different fixed supports 17.

[0058] In one possible implementation, the position of the air inlet 2 corresponds to the position of the first plate 3. Specifically, when the second plate 4 is in the first position, the first plate 3 covers the housing 1, and the position of the air inlet 2 is within its coverage area; for example, the center of the air inlet 2 overlaps with the center of the coverage area.

[0059] Specifically, in this embodiment of the invention, when the range hood is not in operation, the first plate 3 covers the air inlet 2; when the range hood is in operation, the first plate 3, in cooperation with the second plate 4, forms an air intake channel facing the air inlet 2.

[0060] In one possible implementation, the panel assembly further includes at least one third plate 18, which is closer to the top of the housing 1 than the first plate 3.

[0061] Specifically, in this embodiment of the invention, following the conventional placement of a range hood, the third plate 18 is located above the first plate 3. In specific implementations, multiple third plates may be arranged above the first plate 3.

[0062] In one possible implementation, the bottom of the housing 1 is provided with an open oil stain collector 19 for collecting oil stains on the panel assembly.

[0063] Specifically, in this embodiment of the invention, the open-top oil stain collector 19 is disposed at the bottom of the housing 1. The opening of the open-top oil stain collector 19 is not in contact with the first surface of the housing 1. When the range hood is not in operation, the panel assembly is in contact with the first surface, and the oil stains on it flow into the open-top oil stain collector 19 along the first surface. In a specific implementation, when the second plate 4 is in the first position, it can extend into the open-top oil stain collector 19 to prevent oil stains from splashing out when they flow into the open-top oil stain collector 19.

[0064] In summary, the range hood of the present invention includes a housing, a panel assembly, and a drive mechanism. A first surface of the housing has an air inlet. The panel assembly is disposed on the housing and corresponds to the air inlet. The panel assembly includes a first plate and a second plate. A first side of the first plate is connected to the housing via an elastic component, and the first side is near the top of the housing. The first plate at least partially covers the second plate. The drive mechanism is connected to the second plate and is used to drive the second plate to move between a first position and a second position. The first position is used to fit the second plate against the housing so that the panel assembly covers the air inlet. The second position is used to fit the second plate against the first plate to form an air intake channel leading to the air inlet. In the above technical solution, since the first plate at least partially covers the second plate, when the drive mechanism moves the second plate to the second position to open the air inlet, the first plate will open along with the second plate, thereby achieving a larger air intake area, improving air volume and oil fume extraction effect, and without obstructing the user's operation and view; in addition, when the panel assembly is opened, the first plate is on top of the second plate, and there is no gap between the first edge of the first plate and the housing, preventing oil fumes from escaping through the gaps between the panels and improving the oil fume extraction effect; moreover, the second plate is hidden behind the first plate, preventing the second plate from being adhered to and splashed by oil fumes, reducing the user's cleaning area.

[0065] In this invention, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the connection within two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0066] It should be noted that the order of the embodiments described above is merely for descriptive purposes and does not represent the superiority or inferiority of the embodiments. Furthermore, while this specification describes specific embodiments, other embodiments are also within the scope of the appended claims. In some cases, the actions or steps described in the claims can be performed in the order shown in different embodiments and still achieve the desired results. Additionally, the processes depicted in the drawings do not necessarily require a specific order or sequence of connections to achieve the desired results; in some implementations, parallel processing of multiple tasks is possible or may be advantageous.

[0067] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. The focus of each embodiment is to describe the differences from other embodiments.

[0068] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A range hood, characterized in that, include: The housing (1) has an air inlet (2) formed on its first surface. A panel assembly is disposed on the housing (1) and corresponds to the air inlet (2). The panel assembly includes a first plate (3) and a second plate (4). A first side of the first plate (3) is connected to the housing (1) by an elastic component. The first side is the side close to the top of the housing (1). The first plate (3) at least partially covers the second plate (4). A drive mechanism is connected to the second plate (4) and is used to drive the second plate (4) to move between a first position and a second position; the first position is used to fit the second plate (4) against the housing (1) so that the panel assembly covers the air inlet (2), and the second position is used to fit the second plate (4) against the first plate (3) to form an air intake channel leading to the air inlet (2), and the second position is uniquely determined by the drive range of the drive mechanism.

2. The range hood according to claim 1, characterized in that, The driving mechanism is also used to drive the second plate (4) to a third position to adjust the air inlet channel, the third position being closer to the first side than the first position, and the second position being closer to the first side than the third position.

3. The range hood according to claim 1, characterized in that, The driving mechanism includes a drive motor (5), a first connecting rod (6), a second connecting rod (7), a third connecting rod (8), and a first rotating shaft (9). One end of the first connecting rod (6) is connected to the housing (1) through the first rotating shaft (9), and the other end of the first connecting rod (6) is connected to the second plate (4). One end of the second connecting rod (7) is connected to the drive motor (5), and the other end of the second connecting rod (7) is connected to the first connecting rod (6) through the third connecting rod (8).

4. The range hood according to claim 3, characterized in that, The driving mechanism is connected to the fourth position of the second plate (4); the range hood also includes an auxiliary mechanism, which includes a fourth connecting rod (10) and a second rotating shaft (11). One end of the fourth connecting rod (10) is connected to the housing (1) through the second rotating shaft (11), and the other end of the fourth connecting rod (10) is connected to the fifth position of the second plate (4). The fourth position and the fifth position are perpendicularly symmetrical on the second plate (4).

5. The range hood according to claim 1, characterized in that, The elastic component includes a third rotating shaft (12) and an elastic element (13). A first bushing (14) and a second bushing (15) are spaced apart on the first side of the first plate (3). An elastic element (13) is provided between the first bushing (14) and the second bushing (15). One end of the elastic element (13) is connected to the first plate (3). The third rotating shaft (12) passes through the first bushing (14), the elastic element (13) and the second bushing (15) in sequence. A notch matching the third rotating shaft (12) is provided on the housing (1). The third rotating shaft (12) engages with the notch.

6. The range hood according to claim 5, characterized in that, The two notches are symmetrically distributed on the housing (1), the two first bushings (14) are symmetrically distributed on the first side of the first plate (3), and the two second bushings (15) are symmetrically distributed on the first side of the first plate (3).

7. The range hood according to claim 1, characterized in that, An opening is formed on the first side of the housing (1), and a panel bracket (16) is provided at the opening. The panel bracket (16) matches the opening, and the air inlet (2) is provided on the panel bracket (16). The panel assembly is disposed on the second side of the panel bracket (16), the second side being the side of the panel bracket (16) facing away from the housing (1); a fixed bracket (17) is disposed on the third side of the panel bracket (16), the third side being opposite to the second side, and the driving mechanism is disposed on the fixed bracket (17).

8. The range hood according to claim 1, characterized in that, The position of the air inlet (2) corresponds to the position of the first plate (3).

9. The range hood according to claim 1, characterized in that, The panel assembly also includes at least one third plate (18) which is closer to the top of the housing (1) than the first plate (3).

10. The range hood according to any one of claims 1-9, characterized in that, The bottom of the housing (1) is provided with an open oil stain collector (19) for collecting oil stains on the panel assembly.

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