Range hood

Abstract

The invention provides an extractor hood which comprises a first front panel, a first smoke inlet, a movable panel, a transmission assembly and a driving assembly, the transmission assembly comprises a first guide part, a first guide groove, a second guide groove, a first transmission part and a second transmission part, and the first guide part and the first guide groove are obliquely arranged in the same direction; the included angle between the extending direction of the second guide groove and the horizontal plane is smaller than that between the extending direction of the first guide groove and the horizontal plane, the driving end of the driving assembly rotates in the first direction to drive the second transmission part to rotate relative to the first transmission part, and the second transmission part is moved into the first guide groove from the second guide groove; the second transmission part moves upwards along the first guide groove, the first transmission part moves upwards along the first guide part to open the first smoke inlet, and the movable panel slides relative to the first smoke inlet to reduce the occupation of cooking space in the moving process of the movable panel.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of range hoods, and more particularly to a range hood. Background Art

[0002] A smoke inlet is provided on the front side of the range hood. For the overall aesthetics of the range hood, a movable panel is generally provided at the smoke inlet, and a driving component is provided to drive the movable panel to move to open or close the smoke inlet.

[0003] In the related art, the driving component drives the movable panel to flip to open the smoke inlet. During the opening or closing process, the movable panel is prone to interfere with or collide with the cooking pot, resulting in a cooking experience problem.

[0004] In view of this, this application is filed. Summary of the Invention

[0005] An embodiment of the present application provides a range hood, which adjusts the structure of the transmission component so that the movable panel can slide open or close relative to the first smoke inlet, thereby reducing the cooking space occupied by the movable panel during the opening or closing process.

[0006] In a first aspect, an embodiment of the present application provides a range hood, which includes a housing having a front side and a rear side arranged opposite to each other and an upper side and a lower side arranged opposite to each other, the housing including a first front panel, the first front panel being constructed as the front side structure of the housing, and the first front panel being inclined relative to the vertical plane.

[0007] The box body further includes a first smoke inlet formed on the first front panel.

[0008] The range hood includes a movable panel arranged at the first smoke inlet, a transmission assembly connected to the movable panel, and a drive assembly connected to the transmission assembly. The drive assembly drives the movable panel to slide relative to the first smoke inlet via the transmission assembly to open or close the first smoke inlet.

[0009] The transmission assembly includes a first guide component, a second guide component, a first transmission component and a second transmission component, wherein the first guide component is configured to be inclined from the first front panel to the rear lower side of the box body.

[0010] The second guide component includes a first guide groove and a second guide groove, the first guide groove and the first guide component have the same inclination angle, the second guide groove is connected to the first guide groove, and the angle between the extension direction of the second guide groove and the horizontal plane is smaller than the angle between the extension direction of the first guide groove and the horizontal plane.

[0011] The first transmission component can move along the first guide component, and the first transmission component is connected to the driving end of the driving assembly.

[0012] The second transmission component can move along the first guide groove and the second guide groove, and the second transmission component is connected to the first transmission component and the movable panel respectively.

[0013] The driving end of the driving assembly rotates along the first direction to drive the second transmission component to rotate relative to the first transmission component, so that the second transmission component moves from the second guide groove to the first guide groove;

[0014] Then the driving assembly continues to rotate to drive the second transmission component to move upward along the first guide groove, and the first transmission component moves upward along the first guide component to open the first smoke inlet.

[0015] The driving end of the driving component rotates in a direction opposite to the first direction to close the first smoke inlet.

[0016] The above technical solution achieves stable sliding of the movable panel on the first front panel by providing a transmission assembly with dual guide components and a limiter component with adjustable angles. By adjusting the angles of the guide components, the rotation of the drive end is converted into a phased, compound motion, effectively resolving the problem of the movable panel's trajectory at the first smoke inlet. This reduces the cooking space occupied by the movable panel when opening or closing the first smoke inlet, and effectively reduces interference and collision between the movable panel and cooking utensils.

[0017] In some embodiments of the present application, the transmission assembly includes a first connecting rod component and a second connecting rod component, one end of the first connecting rod component is connected to the driving end of the driving assembly, the other end of the first connecting rod component is connected to the first transmission component, and the second connecting rod component is rotatably connected to the first transmission component and the second transmission component. When the driving end of the driving assembly rotates along the first direction, the first connecting rod component drives the first transmission component to move upward along the first guide component, and the first transmission component drives the second transmission component to rotate along the connection between the second connecting rod component and the first transmission component through the second connecting rod component, so that the second transmission component moves from the second guide groove to the first guide groove.

[0018] The rotation of the drive assembly converts rotary motion into linear motion of the first transmission component along the first guide component, and steering motion of the second transmission component between the second guide slot and the first guide slot. This structure precisely sets the motion trajectory of the second transmission component by utilizing the geometric relationship between the connecting rod length and the hinge point.

[0019] In some embodiments of the present application, the first connecting rod component includes a first part and a second part, wherein one end of the first part is connected to the driving end of the driving assembly, one end of the second part is rotatably connected to the other end of the first part, and the other end of the second part is rotatably connected to the first transmission component.

[0020] The driving end of the driving assembly rotates along the first direction, and the first part rotates along the first direction with the driving end as the center to drive the second part to move upward, thereby driving the first transmission component to move upward along the first guide component.

[0021] By designing the first link component as a split first and second section, a three-degree-of-freedom motion structure is formed through two rotational connection nodes (the first section and the drive end, the first section and the second section, and the second section and the first transmission component). Compared to a traditional single-rod rigid connection, this structure achieves a minimum range of motion for the movable panel. When the drive assembly rotates, the second section not only rotates with the first section but also adjusts its angle with the first transmission component through its own rotation, ensuring stable movement of the first transmission component along the first guide component.

[0022] In some embodiments of the present application, the range hood further includes a flow guide component, which is arranged at the first smoke inlet. The flow guide component is constructed to be inclined from the bottom of the first smoke inlet toward the upper rear side of the box body, and the angle between the extension direction of the flow guide component and the horizontal plane is greater than 30°.

[0023] If the angle between the guide member's extension direction and the horizontal plane is less than 30°, the guide member's inclination angle is too low, making it more likely that rising oil smoke will directly impact the guide plate, rather than being effectively guided along the guide plate toward the smoke inlet. This can cause some oil smoke to bounce or accumulate on the guide plate, preventing it from entering the range hood. This reduces oil smoke extraction efficiency and makes the kitchen environment more susceptible to oil fume contamination. In some embodiments of the present application, the angle between the guide member's extension direction and the horizontal plane is less than 70°.

[0024] When the angle between the guide plate's extension and the horizontal plane exceeds 70°, the guide plate's tilt is too steep, reducing the effective collection area of the smoke inlet at the front of the range hood. Because the guide plate is tilted too far, the front end of the smoke inlet is further away from the source of the oil smoke than the rear end. This can reduce the collection efficiency of oil smoke generated in front of the stove, allowing some oil smoke to escape into the kitchen air and reducing the range hood's overall oil smoke collection efficiency.

[0025] In some embodiments of the present application, the range hood includes a rectifying component, which is arranged inside the box and installed above the guide component. The rectifying component is constructed to be inclined from the first front panel to the rear and lower side of the box, and the angle between the extension direction of the rectifying component and the horizontal plane is greater than 8°.

[0026] When the angle between the straightening component and the horizontal plane is less than 8°, the straightening component is relatively flat and cannot effectively guide and control the oil smoke airflow. The oil smoke tends to become turbulent and diffuse during its rise, and cannot be well gathered into a stable airflow, thus affecting the exhaust efficiency of the range hood.

[0027] In some embodiments of the present application, the angle between the extension direction of the first front panel and the vertical plane is greater than 5°. When the angle between the extension direction of the first front panel and the vertical plane is less than 5°, the angle is too small, causing the smoke inlet to be too close to the vertical plane. This changes the relative position of the range hood's smoke inlet and the area where the stove generates oil smoke, resulting in a smaller range for the first smoke inlet to capture oil smoke. The oil smoke needs to rise a longer distance to enter the smoke inlet. During this process, some oil smoke easily diffuses and escapes into the kitchen air, thereby reducing the range hood's oil smoke collection efficiency.

[0028] In some embodiments of the present application, the angle between the extension direction of the first front panel and the vertical plane is less than 30°.

[0029] When the angle between the extension direction of the first front panel and the vertical plane is greater than 30 degrees, the range hood as a whole will protrude further from the wall, occupying more kitchen space. This will make the kitchen appear more crowded when kitchen space is limited, affecting the overall layout and usability of the kitchen.

[0030] In some embodiments of the present application, the second part and the first transmission component are detachably connected. By detachably connecting the second part and the second transmission component, when the second part and the first transmission component experience wear, breakage, or other faults, the detachable connection allows for quick separation and individual replacement of the damaged component without disassembling the entire transmission assembly. In a second aspect, an embodiment of the present application provides a range hood, the range hood comprising a housing having a front side and a rear side that are relatively arranged, and an upper side and a lower side that are relatively arranged, the housing comprising a first front panel, the first front panel being constructed as a front side structure of the housing, and the first front panel being constructed to be vertically arranged.

[0031] The box body further includes a first smoke inlet formed on the first front panel.

[0032] The range hood includes a movable panel arranged at the first smoke inlet, a transmission assembly connected to the movable panel, and a drive assembly connected to the transmission assembly. The drive assembly drives the movable panel to slide relative to the first smoke inlet via the transmission assembly to open or close the first smoke inlet.

[0033] The transmission assembly includes a first guide component, a second guide component, a first transmission component and a second transmission component, wherein the first guide component is configured to be arranged vertically.

[0034] The second guide component includes a first guide groove and a second guide groove. The first guide groove is arranged on a side of the first guide component close to the first front panel, and the first guide groove is constructed to be arranged vertically; the second guide groove is connected to the first guide groove, and the second guide groove extends from the connection with the first guide groove to the rear and lower side of the box body of the box assembly.

[0035] The first transmission component can move along the first guide component, and the first transmission component is connected to the driving end of the driving assembly.

[0036] The second transmission component can move along the first guide groove and the second guide groove, and the second transmission component is connected to the first transmission component and the movable panel.

[0037] The driving end of the driving assembly rotates along the first direction to drive the second transmission component to rotate relative to the first transmission component, so that the second transmission component moves from the second guide groove to the first guide groove;

[0038] Then the driving assembly continues to rotate to drive the second transmission component to move upward along the first guide groove, and the first transmission component moves upward along the first guide component to open the first smoke inlet.

[0039] The driving end of the driving component rotates in a direction opposite to the first direction to close the first smoke inlet.

[0040] The first front panel is set vertically, which fits the wall better than the inclined panel, reducing the overall depth of the range hood and effectively saving kitchen operating space. It is especially suitable for small kitchens or scenes with limited wall cabinet space, reducing spatial interference with stoves and cabinets.

[0041] The second guide member uses a vertical first guide groove and a second guide groove tilted backward and downward to achieve dual-stage operation of the movable panel, namely, turning and straightening. This dual-stage operation ensures that the movable panel is tightly mounted on the first smoke inlet, reducing the problem of loose sealing of the first smoke inlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the implementation methods in the embodiments of the present application or related technologies, the following is a brief introduction to the drawings required for use in the embodiments or related technology descriptions. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0043] Figure 1 This is a structural diagram of the range hood when the movable panel is in the closed state in an embodiment of the present application;

[0044] Figure 2 This is a structural diagram of the range hood when the movable panel is in the open state in an embodiment of the present application;

[0045] Figure 3 This is a schematic structural diagram of the range hood from another perspective when the movable panel is in the open state in the embodiment of the present application;

[0046] Figure 4 This is a cross-sectional view of the range hood in the embodiment of the present application;

[0047] Figure 5 This is a structural diagram of a range hood in an embodiment of the present application;

[0048] Figure 6 This is a schematic diagram of the assembly of the drive assembly, the transmission assembly, and the movable panel when the movable panel is in a closed state in an embodiment of the present application;

[0049] Figure 7 This is a schematic diagram of the assembly of the drive assembly, the transmission assembly, and the movable panel when the movable panel is in the open state in an embodiment of the present application;

[0050] Figure 8 This is a partial exploded view of the range hood in the embodiment of the present application;

[0051] Figure 9 for Figure 8 A magnified view of position A in the middle;

[0052] Figure 10 This is a schematic diagram of the partial structure of the range hood in the embodiment of the present application;

[0053] Figure 11 This is a schematic diagram of the partial structure of the range hood in the embodiment of the present application;

[0054] Figure 12 for Figure 11 Cross-section view of the middle BB position;

[0055] Figure 13 This is a front view of the range hood in the embodiment of the present application;

[0056] Figure 14 for Figure 13 Cross-section view of the middle BB position;

[0057] Figure 15 Schematic diagram of the movement trajectory of the second transmission component in the first guide groove and the second guide groove in an embodiment of the present application.

[0058] The reference numerals are as follows:

[0059] 1-range hood; 10-housing; 11-first front panel; 12-second front panel;

[0060] 13-first smoke inlet; 14-second smoke inlet; 30-transmission assembly; 31-first guide component;

[0061] 32-second guide member; 321-first guide groove; 322-second guide groove; 33-first transmission member;

[0062] 34-second transmission component; 35-first connecting rod component; 351-first part; 352-second part;

[0063] 36-second connecting rod component; 361-first rod; 362-second rod;

[0064] 3221-first sub-limiting portion; 3222-second sub-limiting portion;

[0065] 371-first guide column; 372-second guide column; 50-flow guide component; 20-movable panel; 40-drive assembly;

[0066] 15-third smoke inlet; 16-fourth smoke inlet; 60-rack assembly; 61-first air inlet; 62-first air outlet;

[0067] 17-first air duct; 63-second air duct; 21-lining plate; 211-second inclined surface; 212-third inclined surface;

[0068] 71-LED light; 72-cage smoke chamber; 721-first inclined surface; 64-fan; 641-front air inlet;

[0069] 642-side air outlet; 38-fixing bracket; 80-rectification component; 41-connecting rod. DETAILED DESCRIPTION

[0070] In order to make the purpose, implementation mode and advantages of the present application clearer, the exemplary implementation mode of the present application will be clearly and completely described below in conjunction with the drawings in the exemplary embodiments of the present application. Obviously, the described exemplary embodiments are only part of the embodiments of the present application, not all of the embodiments.

[0071] It should be noted that the brief descriptions of terms in this application are only for the purpose of facilitating the understanding of the embodiments described below, and are not intended to limit the embodiments of this application. Unless otherwise specified, these terms should be understood according to their ordinary and usual meanings.

[0072] In addition, the terms "comprises" and "comprising" and any variations thereof are intended to cover but not exclude inclusion, for example, a product or device comprising a list of components is not necessarily limited to those components expressly listed but may include other components not expressly listed or inherent to such product or device.

[0073] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply 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 on this application.

[0074] 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 the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout this application, unless otherwise specified, "plurality" means two or more.

[0075] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0076] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0077] In the embodiment of the present application, a range hood is proposed. Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 The range hood includes a housing 10. A first air duct 17 is formed inside the housing 10. The housing 10 has a front side and a rear side that are oppositely arranged and an upper side and a lower side that are oppositely arranged.

[0078] It should be noted that Figure 1 The direction indicated by the arrow in the X direction is the front side, and the direction opposite to the arrow in the X direction is the back side. The direction indicated by the arrow in the Y direction is the upper side, and the direction opposite to the arrow in the Y direction is the lower side.

[0079] Reference Figure 1 The range hood includes a frame assembly 60, which is mounted on the top of the box body 10. Figure 4 A second air duct 63 , a first air inlet 61 and a first air outlet 62 are formed inside the rack assembly 60 , and the second air duct 63 is in communication with the first air inlet 61 and the first air outlet 62 .

[0080] Reference Figure 4 The range hood 1 includes a fan 64, which is installed inside the frame assembly 60 to generate negative pressure in the first air duct 17 and the second air duct 63 to absorb oil smoke.

[0081] In some embodiments, reference Figure 4 The fan 64 includes a front air inlet 641 and a side air outlet 642 . The oil smoke enters from the front air inlet 641 and flows out from the side air outlet 642 , and is then discharged from the first air outlet 62 .

[0082] Reference Figure 1 The box body 10 includes a first front panel 11. The first front panel 11 is configured as a front structure of the box body 10. The first front panel 11 is tilted relative to the vertical plane.

[0083] By tilting the first front panel 11, the airflow direction can be smoothed, turbulence can be reduced, and the diffusion of oil smoke can be reduced. The tilted first front panel 11 extends toward the cooking area, bringing the effective range of the range hood 1 closer to the pot.

[0084] The housing 10 includes a first smoke inlet 13 formed on the first front panel 11. Under the negative pressure of the fan 64, the oil smoke enters the first air duct 17 from the first smoke inlet 13, passes through the second air duct 63, and is discharged from the first air outlet 62.

[0085] By forming an angle between the extension direction of the first front panel 11 and the vertical plane, the first smoke inlet 13 is brought closer to the cooking area, shortening the rising path of the oil smoke.

[0086] Reference Figure 4 As shown, the included angle E is formed between the extension direction of the first front panel 11 and the vertical plane.

[0087] In some embodiments, reference Figure 1 The box body 10 includes a second front panel 12. The second front panel 12 is configured as the front side structure of the box body. Figure 1 , the first front panel 11 and the second front panel 12 are connected.

[0088] The second front panel 12 is tilted relative to the horizontal plane, and the tilt angle of the second front panel 12 relative to the horizontal plane is smaller than the tilt angle of the first front panel 11 relative to the horizontal plane.

[0089] The housing 10 further includes a second smoke inlet 14 formed on the second front panel 12. Under the negative pressure of the fan 64, the oil smoke enters the first air duct 17 from the second smoke inlet 14, passes through the second air duct 63, and is discharged from the first air outlet 62.

[0090] In some embodiments, the box body 10 may be an integrally formed structure. In some embodiments, the first front panel 11 and the second front panel 12 may be detachably connected together.

[0091] In some embodiments, reference Figure 1The range hood 1 includes a movable panel 20 , which is mounted at the first smoke inlet 13 . The first smoke inlet 13 is opened or closed by moving the movable panel 20 .

[0092] Reference Figure 6 The range hood 1 includes a transmission assembly 30 . The transmission assembly 30 is connected to the movable panel 20 .

[0093] The range hood 1 includes a driving assembly 40 . A driving end of the driving assembly 40 is connected to the transmission assembly 30 .

[0094] In the related art, the driving assembly 40 drives the movable panel 20 to flip along one end of the first smoke inlet 13 through the transmission assembly 30 to open the first smoke inlet 13. During the opening or closing process, the movable panel 20 is prone to interfere with or collide with the cooking pot, resulting in a poor cooking experience.

[0095] Based on the motion trajectory of the above-mentioned movable panel 20 during its movement, in an embodiment of the present application, by changing the structure of the transmission assembly 30, the driving assembly 40 drives the movable panel 20 to slide along one end of the first smoke inlet 13 to the other end of the first smoke inlet 13 through the transmission assembly 30, thereby realizing the opening or closing of the first smoke inlet 13.

[0096] Reference Figure 1 , the movable panel 20 is in the first position, and the movable panel 20 closes the first smoke inlet 13. Figure 2 , the movable panel 20 is in the second position, and the movable panel 20 opens the first smoke inlet 13. When the movable panel 20 is in the second position, the movable panel 20 and the first front panel 11 can be arranged parallel to each other, or there is a certain angle between the movable panel 20 and the first front panel 11.

[0097] By changing the structure of the transmission assembly 30, when the movable panel 20 is opened, the movable panel 20 does not block the cooking utensils during operation of the range hood 1, thereby increasing the cooking space. When the movable panel 20 is closed, the movable panel 20 is completely installed at the first smoke inlet 13, and the movable panel 20 is flush with the outer edge of the first front panel 11.

[0098] Reference Figure 6 The range hood 1 includes a driving end and a driven end, and both the driving end and the driven end include a first transmission component 33, a second transmission component 34, a first guide component 31, a second guide component 32 and a fixing bracket 38.

[0099] A fixed bracket 38 is mounted on the inner sidewall of the housing, and the second guide member 32 of the first guide member 31 is mounted on the fixed bracket 38. The first transmission member 33 can move along the first guide member 31, and the second transmission member 34 can move along the second guide member 32. The driving end and the driven end are arranged at both ends of the housing 10 along the length direction via the fixed bracket 38. The driving end is connected to the drive assembly 40, and the driving and driven ends are connected by a connecting rod 41 to achieve synchronous movement.

[0100] In some embodiments, reference Figure 6 、 Figure 7 The transmission assembly 30 includes a first transmission component 33. The first transmission component 33 can move along the first guide component 31, and the first transmission component 33 is connected to the driving end of the driving assembly 40.

[0101] In some embodiments, the transmission assembly 30 includes a second transmission component 34 . The second transmission component 34 can move along the first guide groove 321 and the second guide groove 322 . The second transmission component 34 is connected to the first transmission component 33 and the movable panel 20 .

[0102] In some embodiments, the transmission assembly 30 includes a first guide member 31 . The first guide member 31 is configured to be tilted downward from the first front panel 11 toward the rear side of the box body 10 .

[0103] In some embodiments, the transmission assembly 30 includes a second guide member 32. Figure 9 The second guide member 32 includes a first guide groove 321 and a second guide groove 322 . The first guide groove 321 and the first guide member 31 have the same inclination angle so that the first transmission member 33 and the second transmission member 34 can move synchronously.

[0104] In some embodiments, the inclination angle of the first guide member 31 is consistent with the inclination angle of the first front panel 11, so as to keep the moving track of the movable panel 20 and the first front panel 11 from interfering with each other while reducing the moving track path,

[0105] It can be known that the inclination angle of the first guide member 31 and the inclination angle of the first front panel 11 may be inconsistent, as long as the inclination angle of the first guide member 31 meets the requirement for opening the movable panel.

[0106] In some embodiments, when the inclination angle of the first guide member 31 and the first guide groove 321 is inconsistent with the direction of the first front panel, the sliding trajectory of the movable panel 20 can be changed by changing the installation direction of the first guide portion 31 and the second guide portion 32 and thereby changing the inclination angle of the first guide member 31 and the first guide groove 321, thereby changing the occupation of the cooking space by the movable panel 20 during the movement.

[0107] Reference Figure 9 The second guide groove 322 is connected to the first guide groove 321, and the angle between the extension direction of the second guide groove 322 and the horizontal plane is smaller than the angle between the extension direction of the first guide groove 321 and the horizontal plane. When the movable panel 20 can slide from the first guide groove 321 to the second guide groove 322, the movable panel 20 can move toward the first smoke inlet 17, so that the movable panel 20 can be embedded in the first smoke inlet 17.

[0108] Reference Figure 13 、 Figure 14 The extending direction of the first guide groove 321 is the extending direction of the length of the internal groove-shaped structure of the first guide groove 321, and the angle between the extending direction of the first guide groove 321 and the horizontal plane is angle B. The extending direction of the second guide groove 322 is the extending direction of the length of the internal groove-shaped structure of the second guide groove 322, and the angle between the extending direction of the second guide groove 322 and the horizontal plane is angle A.

[0109] By providing a dual-limit design for the first guide groove 321 and the second guide groove 322, the movement trajectory of the movable panel 20 can be precisely controlled. By providing the second guide groove 322, the second transmission member 34 can enter the second guide groove 322 after moving downward along the first guide groove 321, so that the movable panel 20 can be inserted into the first smoke inlet 13.

[0110] In some embodiments, the driving end of the driving assembly 40 rotates along the first direction, and the driving assembly 40 drives the first transmission member 33 to move upward along the first guide member 31. The second transmission member 34 is subjected to an upward pulling force, so that the second transmission member 34 rotates relative to the first transmission member 33, so that the second transmission member 34 moves from the second guide groove 322 to the first guide groove 321. Figure 15 The arrow in the middle indicates the direction.

[0111] Then the driving assembly 40 continues to rotate to drive the second transmission component 34 to move upward along the first guide groove 321 , and the first transmission component 33 to move upward along the first guide component 31 to open the first smoke inlet 13 . Figure 7 FIG shows the state of the transmission assembly 30 when the movable panel 20 opens the first smoke inlet 13. Figure 7 In the embodiment, the movable panel 20 and the first front panel 11 are arranged in parallel.

[0112] In some embodiments, the driving end of the driving component rotates in a direction opposite to the first direction to close the first smoke inlet 13 .

[0113] When the driving end of the driving component rotates in the opposite direction of the first direction, it drives the first transmission component 33 to move downward along the first guide component 31, and the first transmission component 33 drives the second transmission component 34 to move downward along the first guide groove 321 first. When the second transmission component 34 moves to the connection between the first guide groove 321 and the second guide groove 322, the driving end of the driving component continues to rotate in the opposite direction of the first direction, and the driving component drives the first transmission component 33 to move downward along the first guide component 31, and the first transmission component 33 drives the second transmission component 34 to move from the first guide groove 321 to the second guide groove 322.

[0114] Figure 6 FIG shows the state of the transmission assembly 30 when the movable panel 20 closes the first smoke inlet 13. It should be noted that the first direction is Figure 6 In the counterclockwise direction, the opposite direction of the first direction is Figure 6 In clockwise direction.

[0115] In the above technical solution, the transmission assembly 30 with double guide components and a guide groove structure for angle switching is provided, thereby achieving stable sliding of the movable panel 20 on the first front panel 11.

[0116] By setting the angle of the guide component, the rotation of the driving end is converted into a staged compound motion, which effectively solves the problem of the movement trajectory of the movable panel 20 at the first smoke inlet 13, reduces the occupation of the cooking space by the movable panel 20 when opening or closing the first smoke inlet 13, and reduces the interference and collision between the movable panel 20 and the cooking pot.

[0117] In some other embodiments, the first front panel 11 is configured to be vertically arranged (not shown in the figures), and the first front panel 11 is configured as the front side structure of the box body 10 .

[0118] In this embodiment, the transmission assembly 30 includes a first guide member 31 and a second guide member 32. In order to match the placement position of the first front panel 11, the first guide member 31 is configured to be vertically arranged.

[0119] The second guide member 32 includes a first guide groove 321 and a second guide groove 322. The first guide groove 321 is provided on a side of the first guide member 31 that is closer to the first front panel 11. The first guide groove 321 is configured to be vertically arranged. The second guide groove 322 is connected to the first guide groove 321 and extends from the point of connection with the first guide groove 321 toward the rear and lower side of the housing 10.

[0120] The first transmission member 33 can move along the first guide member 31 and is connected to the driving end of the driving assembly 40. The second transmission member 34 can move along the first guide slot 321 and the second guide slot 322 and is connected to the first transmission member 33 and the movable panel 20.

[0121] The driving end of the driving assembly 40 rotates along the first direction to drive the second transmission member 34 to rotate relative to the first transmission member 33, so that the second transmission member 34 moves from the second guide groove 322 to the first guide groove 321;

[0122] Then the driving assembly 40 continues to rotate to drive the second transmission component 34 to move upward along the first guide groove 321 , and the first transmission component 33 to move upward along the first guide component 31 to open the first smoke inlet 13 .

[0123] The driving end of the driving component rotates in the opposite direction to the first direction to close the first smoke inlet 13 .

[0124] In the above embodiment, the first front panel 11 is arranged vertically, which fits the wall better than the inclined panel, and can reduce the overall depth of the range hood 1, effectively saving kitchen operating space. It is particularly suitable for small kitchens or scenes with limited wall cabinet space, reducing spatial interference with stoves and cabinets.

[0125] The second guide member 32 utilizes a vertical first guide slot 321 and a rearward and downwardly inclined second guide slot 322 to achieve dual-stage operation of the movable panel 20, namely, turning and straightening. This dual-stage operation ensures that the movable panel 20 is tightly mounted on the first smoke inlet 13, reducing the risk of leaky seals at the first smoke inlet 13.

[0126] This application proposes two arrangements for the placement of the first front panel 11. In addition to the arrangement direction of the first front panel 11, the installation position of the transmission assembly 30 is adaptively adjusted. This specific embodiment is described using the tilted placement of the first front panel 11 as an example.

[0127] In some embodiments, the transmission assembly 30 includes a first connecting rod component 35 , one end of the first connecting rod component 35 is connected to the driving end of the driving assembly 40 , and the other end of the first connecting rod component 35 is connected to the first transmission component 33 .

[0128] The transmission assembly 30 includes a second connecting rod component 36 , which is rotatably connected to the first transmission component 33 and the second transmission component 34 .

[0129] When the driving end of the driving assembly 40 rotates along the first direction, the first connecting rod component 35 drives the first transmission component 33 to move upward along the first guide component 31, and the first transmission component 33 drives the second transmission component 34 to rotate along the connection between the second connecting rod component 36 and the first transmission component 33 through the second connecting rod component 36, so that the second transmission component 34 moves from the second guide groove 322 to the first guide groove 321.

[0130] The rotation of the drive assembly 40 converts the rotary motion into linear motion of the first transmission component 33 along the first guide component 31, and linear motion of the second transmission component 34 between the second guide slot 322 and the first guide slot 321. This structure utilizes the geometric relationship between the connecting rod length and the hinge point to precisely set the motion trajectory of the second transmission component 34.

[0131] In some embodiments, the second link member 36 is configured as a double-rod structure. Figure 8 、 Figure 9 The double rod structure is respectively a third portion 361 and a fourth portion 362. The third portion 361 and the fourth portion 362 have the same length.

[0132] Reference Figure 6 The third part 361 connects the upper side of the first transmission component 33 close to the second transmission component 34 and the upper side of the second transmission component 34 close to the first transmission component 33, and the fourth part 362 connects the lower side of the first transmission component 33 close to the second transmission component 34 and the lower side of the second transmission component 34 close to the first transmission component 33.

[0133] The spacing between the third portion 361 and the fourth portion 362 of the first transmission member 33 is the same as the spacing between the third portion 361 and the fourth portion 362 of the second transmission member 34. Thus, the third portion 361, the fourth portion 362, the first transmission member 33, and the second transmission member 34 form a parallelogram four-bar linkage, enabling translation of the second transmission member 34.

[0134] In some embodiments, the second transmission component 34 is provided with at least two guide posts. The guide posts are located on the side of the second transmission component 34 where the movable panel 20 is not mounted, and are slidable along the second guide component 32. The side of the second transmission component 34 where the guide posts are not mounted is hingedly connected to the movable panel 20, enabling the movable panel 20 to slide along the second guide component. As a result, the movable panel 20 can be driven by the drive assembly 40 to close or open the first smoke inlet 13.

[0135] Reference Figure 10The second transmission member 34 is provided with a first guide post 371 and a second guide post 372. The second transmission member 34 relies on the first guide post 371 and the second guide post 372 to move along the second guide member 32. The first guide post 371 and the second guide post 372 are arranged along the length direction of the second transmission member 34, and the first guide post 371 is arranged above the second guide post 372.

[0136] This double-guide column structural design significantly improves the stability and guiding accuracy of the movement of the second transmission component 34. Through two-point positioning, it effectively suppresses the deflection and shaking that may occur in the component during movement, ensures the smooth displacement of the movable panel 20, reduces component wear caused by movement deviation, and extends the overall service life of the equipment.

[0137] The second guide slot 322 is provided with two parts, including a first sub-limiting portion 3221 and a second sub-limiting portion 3222. The first sub-limiting portion 3221 and the second sub-limiting portion 3222 are arranged along the length direction of the first guide slot 321. The first sub-limiting portion 3221 is provided on the second sub-limiting portion 3222.

[0138] The dual-limit configuration provides precise positional constraints for the movable panel 20, reducing the risk of excessive displacement beyond the preset range during movement, which could lead to equipment malfunction or safety hazards. Furthermore, this structural design effectively disperses the external forces exerted on the movable panel 20 during insertion or removal, enhancing the load-bearing capacity of the entire transmission system.

[0139] When the first guide post 371 and the second guide post 372 move along the first guide groove 321, the movable panel 20 is flush with the first front panel 11. Then, the first guide post 371 enters the first sub-limiting portion 3221, and the second guide post 372 enters the second sub-limiting portion 3222. At this time, the movable panel 20 is embedded in the first smoke inlet 13, and the outer surface of the movable panel 20 is flush with the outer surface of the first front panel 11.

[0140] Through the orderly cooperation of the guide column and the limit part, the movable panel 20 is accurately switched from the closed position to the open position, ensuring the seamless connection between the movable panel 20 and the first front panel 11, which not only improves the integrity and aesthetics of the device appearance, but also ensures the sealing of the first smoke inlet 13, prevents smoke leakage, and improves the performance and work efficiency of the device.

[0141] In some embodiments of this application, refer to Figure 9 The first connecting rod component 35 includes a first part 351 and a second part 352, wherein one end of the first part 351 is connected to the driving end of the driving assembly 40, one end of the second part 352 is rotatably connected to the other end of the first part 351, and the other end of the second part 352 is rotatably connected to the first transmission component 33.

[0142] The driving end of the driving assembly 40 rotates along the first direction, and the first part 351 rotates along the first direction around the driving end to drive the second part 352 to move upward, thereby driving the first transmission component 33 to move upward along the first guide component 31.

[0143] By adopting a split design of the first part 351 and the second part 352 of the first connecting rod component 35, a three-degree-of-freedom motion structure is formed through two rotating connection nodes (the first part 351 and the driving end, the first part 351 and the second part 352, and the second part 352 and the first transmission component 33).

[0144] Compared to a traditional single-rod rigid connection, this structure reduces the range of motion of the movable panel 20. When the drive assembly 40 rotates, the second portion 352 not only rotates with the first portion 351 but also adjusts its angle with the first transmission member 33 by rotating itself, ensuring stable movement of the first transmission member 33 along the first guide member 31.

[0145] Driven by the driving assembly 40 , the first portion 351 rotates to drive the first transmission component 33 to translate along the direction of the first guide component 31 . The first transmission component 33 drives the second transmission component 34 to move synchronously while translating.

[0146] When the first guide post 371 and the second guide post 372 move along the first guide groove 321, the movable panel 20 is flush with the first front panel 11. Then, the first guide post 371 and the second guide post 372 enter the second guide groove 322, and the movable panel 20 is embedded in the first smoke inlet 13. The outer surface of the movable panel 20 is flush with the outer surface of the first front panel 11.

[0147] In some embodiments of this application, refer to Figure 4 The range hood 1 further includes a flow guide component 50, which is disposed at the first smoke inlet 13. The flow guide component 50 is configured to be inclined from the lower side of the first smoke inlet 13 toward the upper rear side of the box body 10 to guide the airflow to enter quickly.

[0148] In some embodiments, the angle between the extension direction of the flow guide component 50 and the horizontal plane is greater than 30°.

[0149] Reference Figure 4 The extension direction of the guide component 50 is the extension direction of the intersection line segment of the end surface of the guide component 50 close to the front side and the vertical surface, and the angle between the extension direction of the guide component 50 and the horizontal plane is angle D.

[0150] When the angle between the extension direction of the guide member 50 and the horizontal plane is less than 30°, the inclination angle of the guide member 50 is too low, making it easier for the oil smoke to directly impact the guide member 50 during its rise, rather than being effectively guided along the direction of the guide member 50 to the smoke inlet. This may cause some oil smoke to rebound or accumulate on the guide member 50, preventing it from smoothly entering the range hood 1, thereby reducing the oil smoke extraction efficiency and making the kitchen environment more susceptible to oil smoke pollution.

[0151] In some embodiments, the angle between the extension direction of the flow guide component 50 and the horizontal plane is less than 70°.

[0152] When the angle between the extension direction of the guide member 50 and the horizontal plane is greater than 70°, the guide member 50 is tilted too sharply, which can reduce the effective collection area of the smoke inlet at the front of the range hood 1. Because the guide member 50 is tilted too much, the front end of the smoke inlet is further away from the smoke source than the rear end. This can reduce the collection efficiency of smoke generated in front of the stove, causing some smoke to escape into the kitchen air and reducing the overall smoke collection efficiency of the range hood 1.

[0153] In some embodiments of this application, refer to Figure 4 The range hood 1 includes a flow-rectifying component 80, which is disposed within the housing 10 and mounted above the flow-guiding component. The flow-rectifying component 80 is configured to be inclined from the first front panel 11 toward the rear and lower side of the housing 10. The angle between the extending direction of the flow-rectifying component 80 and the horizontal plane is greater than 8°, facilitating the smooth flow of oil droplets within the housing 10 toward the rear side of the housing 10.

[0154] Reference Figure 4 The extending direction of the rectifying component 80 is the extending direction of the line segment where the lower surface of the rectifying plate 80 intersects the vertical plane. The angle between the rectifying component 80 and the horizontal plane is angle C.

[0155] Reference Figure 5 A fourth smoke inlet 16 is provided in the middle area of the rectifying component 80, and the fourth smoke inlet 16 is provided as a long air inlet fence hole.

[0156] When the angle between the rectifying member 80 and the horizontal plane is less than 8°, the rectifying member 80 is relatively flat and cannot effectively guide and restrict the oil smoke airflow. The oil smoke is easily turbulent and diffused during the rising process, and cannot be well gathered into a stable airflow, thereby affecting the exhaust efficiency of the range hood 1.

[0157] In some embodiments of the present application, the angle between the extension direction of the first front panel 11 and the vertical plane is greater than 5°. When the angle between the extension direction of the first front panel 11 and the vertical plane is less than 5°, the angle is too small, causing the smoke inlet to be too close to the vertical plane. This changes the relative position of the smoke inlet of the range hood 1 and the area where the stove generates oil smoke, resulting in a smaller range for the first smoke inlet 13 to capture oil smoke. The oil smoke needs to rise a longer distance before entering the smoke inlet. During this process, some oil smoke easily diffuses to the surrounding area and escapes into the kitchen air, thereby reducing the oil smoke collection efficiency of the range hood 1.

[0158] In some embodiments of the present application, the angle between the extension direction of the first front panel 11 and the vertical plane is less than 30°.

[0159] When the angle between the extension direction of the first front panel 11 and the vertical plane is greater than 30 degrees, the range hood 1 as a whole will protrude further from the wall, occupying more kitchen space. This will make the kitchen appear more crowded when the kitchen space is limited, affecting the overall layout and usability of the kitchen.

[0160] In some embodiments of the present application, the second portion 352 is detachably connected to the first transmission component 33. By detachably connecting the second portion 352 and the second transmission component 34, when the second portion 352 and the first transmission component 33 experience wear, breakage, or other faults, the detachable connection allows for quick separation and replacement of the damaged component without disassembling the entire transmission assembly 30.

[0161] The present application provides an improved range hood 1. When the range hood 1 is not in operation, the first smoke inlet 13 is closed. Only when the range hood 1 is in a cooking mode does the first smoke inlet 13 open. The range hood 1 can intelligently control the closing of the first smoke inlet 13. In the present application, the movable panel 20 is opened by sliding, so that the movable panel 20 does not block the cooking utensils during cooking, providing sufficient operating space for cooking and a good user experience.

[0162] In some embodiments, for better cage smoking, refer to Figure 1 The second front panel 12 is tilted and an LED lamp 71 is provided on the second front panel 12. To ensure a larger illumination range of the LED lamp 71, the angle between the second front panel 12 and the horizontal plane is in the range of 5°-10°.

[0163] When the angle between the second front panel 12 and the horizontal plane is less than 5°, the angle is too small, and the light emitted by the LED lamp will be closer to the horizontal direction, resulting in an insufficient downward irradiation angle, so that the stove area under the range hood 1 cannot be fully illuminated, and a large area of shadow will be formed on objects such as pots and pans, affecting the user's observation of the cooking process.

[0164] When the angle between the second front panel 12 and the horizontal plane is greater than 10°, the angle is too large, and the LED light may shine relatively more directly into the user's eyes, especially when the user is standing in a suitable operating position, which is prone to glare, which will irritate the eyes and make the user feel uncomfortable. Long-term use may cause damage to the eyes, and it will also affect the user's vision when cooking, interfering with the judgment of the cooking status of the food.

[0165] In some embodiments, reference Figure 4 、 Figure 5 A smoke cage chamber 72 is provided below the LED lamp 71. The smoke cage chamber 72 is provided to be recessed from the bottom to the top.

[0166] The smoke chamber 72 includes a first inclined surface 721, on which are disposed the second smoke inlets 14. To provide more precise control of the dual-burner stove, the second smoke inlets 14 are positioned on both sides of the first inclined surface 721, evenly spaced apart on each side. The second smoke inlet 14 on the left side is tilted to the right, while the second smoke inlet 14 on the right side is tilted to the left.

[0167] In some embodiments, two smoke inlets are provided below the frame assembly 60, namely a third smoke inlet 15 and a fourth smoke inlet 16. The third smoke inlet 15 is located on a side of the second smoke inlet close to the fan 64, and the fourth smoke inlet 16 is formed in the rectifying component 80.

[0168] Reference Figure 4 、 Figure 5 The third smoke inlet 15 is positioned correspondingly to the second smoke inlet 14 and is located at the front of the frame assembly 60, guiding the oil smoke from above to quickly enter the frame assembly 60. The fourth smoke inlet 16 is positioned correspondingly above the rectifying component 80 and is located below the frame assembly 60. The fourth smoke inlet 16 is connected to the first smoke inlet 13, guiding the oil smoke from below to quickly enter the housing 10 and further into the frame assembly 60, thereby improving the smoke extraction effect.

[0169] In some embodiments, reference Figure 6 、 Figure 7 The transmission assembly 30 includes a liner 21, which includes a second inclined surface 211 and a third inclined surface 212. The second inclined surface 211 and the third inclined surface 212 form a predetermined angle. The second inclined surface 211 is parallel to the movable panel 20, and the third inclined surface 212 extends upward and tilted toward the interior of the housing 10. When the movable panel 20 is in the second open position, the third inclined surface 212 guides airflow quickly into the interior of the housing 10, improving the smoking effect.

[0170] The second transmission component 34 is fixedly connected to the lining plate 21 , so that the movable panel 20 can be translated in the direction of the second guide component 32 .

[0171] Reference Figure 11 、 Figure 12 The first guide component 31 is set as a track part, and the track part has a structure with a guiding function that protrudes outward. The first transmission component 33 includes a track matching part 331 that can match with the track structure. The track matching part 331 protrudes inward, and a ball is set between the track part and the track matching part to assist movement, thereby ensuring the stability of sliding between the first transmission component 33 and the first guide component 31.

[0172] The present application provides a range hood 1, which includes a first front panel 11, a first smoke inlet 13, a movable panel 20, a transmission assembly 30 and a drive assembly 40. The transmission assembly 30 includes a first guide component 31, a first guide groove 321, a second guide groove 322, a first transmission component 33 that can move along the first guide component 31, and a second transmission component 34 that can move along the first guide groove 321 and the second guide groove 322. The first guide component 31 and the first guide groove 321 are arranged to be inclined in the same direction, and the angle between the second guide groove 322 and the horizontal plane is smaller than the angle between the first guide groove 321 and the horizontal plane.

[0173] The driving end of the driving assembly 40 rotates along the first direction to drive the second transmission component 34 to rotate relative to the first transmission component 33, moving the second transmission component 34 from the second guide groove 322 to the first guide groove 321; the second transmission component 34 moves upward along the first guide groove 321, and the first transmission component 33 moves upward along the first guide component 31 to open the first smoke inlet 13.

[0174] The movable panel 20 slides relative to the first smoke inlet 13 to reduce the cooking space occupied during the movement of the movable panel 20. Simultaneously, the driving end of the driving assembly 40 can be controlled to rotate in a direction opposite to the first direction, thereby sequentially driving the first transmission component 33 and the second transmission component 34 to close the first smoke inlet 13. At this point, the movable panel 20 and the first front panel 11 are seamlessly connected, thereby improving the sealing of the first smoke inlet 13 of the range hood 1.

[0175] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

[0176] For ease of explanation, the above description has been made with reference to specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Based on the above teachings, various modifications and variations are possible. The above embodiments are selected and described to better explain the principles and practical applications, so that those skilled in the art can better utilize the above embodiments and various different variations of the embodiments suitable for specific use considerations.

Claims

1. A range hood, characterized in that: include: A box body having a front side, a rear side, an upper side, and a lower side that are arranged opposite to each other, and comprising: A first front panel is configured as a front structure of the box body, and the first front panel is arranged obliquely relative to a vertical plane; a first smoke inlet formed on the first front panel; a movable panel, provided at the first smoke inlet, for opening or closing the first smoke inlet; a transmission assembly connected to the movable panel; A driving assembly, wherein the driving end of the driving assembly is connected to the transmission assembly, and the driving assembly drives the movable panel to slide relative to the first smoke inlet via the transmission assembly; the transmission assembly includes: A first guide member is configured to be inclined from the first front panel toward the rear lower side of the box body; A second guide member, wherein the second guide member comprises: a first guide groove, wherein the inclination angle of the first guide groove is the same as the inclination angle of the first guide member; a second guide groove, the second guide groove being connected to the first guide groove, wherein an angle between an extension direction of the second guide groove and a horizontal plane is smaller than an angle between an extension direction of the first guide groove and the horizontal plane; a first transmission component, movable along the first guide component, the first transmission component being connected to the driving assembly; a second transmission component, movable along the first guide groove and the second guide groove, the second transmission component being connected to the first transmission component and the movable panel respectively; The driving end of the driving assembly rotates along the first direction to drive the second transmission component to rotate relative to the first transmission component, and the second transmission component moves from the second guide groove into the first guide groove; Then, the second transmission component moves upward along the first guide groove, and the first transmission component moves upward along the first guide component to open the first smoke inlet; The driving end of the driving assembly rotates in a direction opposite to the first direction to close the first smoke inlet.

2. The range hood according to claim 1, characterized in that: The transmission assembly comprises: a first connecting rod component, one end of which is connected to the driving end of the driving assembly and the other end of which is connected to the first transmission component; a second connecting rod component, rotatably connecting the first transmission component and the second transmission component; When the driving end of the driving assembly rotates along the first direction, the first connecting rod component drives the first transmission component to move upward along the first guide component, and the first transmission component drives the second transmission component to rotate along the connection between the second connecting rod component and the first transmission component through the second connecting rod component, so that the second transmission component moves from the second guide groove to the first guide groove.

3. The range hood according to claim 2, characterized in that: The first connecting rod component includes: a first part, one end of which is connected to a driving end of the driving assembly; a second part, one end of the second part being rotatably connected to the other end of the first part, and the other end of the second part being rotatably connected to the first transmission component; The driving end of the driving assembly rotates along a first direction, and the first part rotates along the first direction with the driving end as the center to drive the second part to move upward, thereby driving the first transmission component to move upward along the first guide component.

4. The range hood according to any one of claims 1 to 3, characterized in that: Also includes: A flow guide component is provided at the first smoke inlet, and is constructed to be inclined from the bottom of the first smoke inlet toward the upper rear side of the box body, and the angle between the extension direction of the flow guide component and the horizontal plane is greater than 30°.

5. The range hood according to claim 4, characterized in that: The included angle between the extension direction of the flow guide component and the horizontal plane is less than 70°.

6. The range hood according to claim 4, characterized in that: Also includes: A rectifying component is provided inside the box and installed above the guide component. The rectifying component is constructed to be inclined from the first front panel to the rear and lower side of the box. The angle between the extending direction of the rectifying component and the horizontal plane is greater than 8°.

7. The range hood according to any one of claims 1 to 3, characterized in that: An included angle between an extension direction of the first front panel and a vertical plane is greater than 5°.

8. The range hood according to any one of claims 1 to 3, characterized in that: The included angle between the extension direction of the first front panel and the vertical plane is less than 30°.

9. The range hood according to claim 3, characterized in that: The second part is detachably connected to the first transmission component.

10. A range hood, characterized in that: include: A box body having a front side and a rear side and an upper side and a lower side arranged opposite to each other, and the box body at least comprising: A first front panel is configured as a front portion of the box body, wherein the first front panel is configured as a vertically arranged vertical surface; a first smoke inlet formed on the first front panel; a movable panel, provided at the first smoke inlet, for opening or closing the first smoke inlet; a transmission assembly connected to the movable panel; A driving assembly, wherein the driving end of the driving assembly is connected to the transmission assembly, and the driving assembly drives the movable panel to slide relative to the first smoke inlet via the transmission assembly; the transmission assembly includes: A first guide member is configured to be arranged vertically; A second guide member, wherein the second guide member comprises: a first guide groove, provided on a side of the first guide component close to the first front panel, wherein the first guide groove is configured to be arranged in a vertical plane; a second guide groove, the second guide groove being connected to the first guide groove, and the second guide groove extending from a point of connection with the first guide groove toward a rear lower side of the box body; a first transmission component, movable along the first guide component, the first transmission component being connected to the driving assembly; a second transmission component, movable along the first guide groove and the second guide groove, the second transmission component being connected to the first transmission component and the movable panel; The driving end of the driving assembly rotates along the first direction to drive the second transmission component to rotate relative to the first transmission component, and the second transmission component moves from the second guide groove into the first guide groove; Then, the second transmission component moves upward along the first guide groove, and the first transmission component moves upward along the first guide component to open the movable panel; The driving end of the driving assembly rotates in a direction opposite to the first direction to close the movable panel.

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