Smoke collecting device and range hood

Abstract

The application provides a smoke collecting device and a range hood, and relates to the technical field of kitchen appliances. The smoke collecting device provided by the application comprises a fan mechanism and a smoke collecting mechanism. The smoke collecting mechanism is movably connected with the fan mechanism and can be extended or stored in the fan mechanism along the vertical direction. The smoke collecting mechanism comprises a wind guide pipe and a smoke collecting cover which are in communication with each other. The smoke collecting cover is provided with a smoke inlet and can rotate relative to the wind guide pipe to adjust the smoke collecting cover to be in a horizontal or vertical state. The smoke collecting device and the range hood provided by the application solve the problem that a smoke collecting area cannot be formed at the top of a smoke generating area.

Description

Technical Field

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

[0002] When cooking, cooking utensils produce fumes. As the fumes are heated, they rise naturally and are drawn away by the smoke inlet of the range hood. Fumes that are not drawn away in time diffuse into the room, which is called smoke escape. The distance from the cooking utensils to the smoke inlet is called the smoke path. The longer the smoke path, the worse the smoke removal effect of the range hood; the shorter the smoke path, the better the smoke removal effect of the range hood.

[0003] Existing range hoods cannot solve the problem of creating a smoke-gathering area above the cookware while avoiding interference between large cookware and the smoke-gathering area. In addition, it is difficult for the smoke inlet of the range hood to be perpendicular to the position of the mouth, which affects the smoke extraction effect. Traditional lift-type range hoods use a flap to cut off the smoke path to extract the smoke, but it is difficult to match with cookware of various sizes, which affects the smoke extraction effect. Summary of the Invention

[0004] The purpose of this invention is to provide a smoke collection device and a range hood to alleviate the problem that a smoke collection area cannot be formed at the top of the smoke generation area in the prior art.

[0005] To solve the above-mentioned technical problems, the technical solution provided by the present invention is as follows:

[0006] The smoke collection device provided in this embodiment of the invention includes: a fan mechanism and a smoke collection mechanism. The smoke collection mechanism is movably connected to the fan mechanism and can extend or be stored in the fan mechanism in the vertical direction.

[0007] The smoke collection mechanism includes interconnected air ducts and smoke hoods. The smoke hoods are equipped with smoke inlets and can rotate relative to the air ducts to adjust the smoke hoods to be in a horizontal or vertical position.

[0008] As a further technical solution, the smoke collection mechanism also includes a folded tube, the two ends of which are connected to the air duct and the smoke hood, respectively.

[0009] As a further technical solution, the smoke collection mechanism also includes a drive component;

[0010] The drive assembly is connected to the smoke hood and is used to drive the smoke hood to rotate relative to the air duct.

[0011] As a further technical solution, the drive assembly is located inside the air duct and includes a drive component and a transmission component;

[0012] The drive component is connected to the inner wall of the air duct and the transmission component, respectively, and the transmission component is connected to the inner wall of the smoke hood.

[0013] As a further technical solution, the transmission component includes a first meshing component, a second meshing component, and a rotating rod assembly;

[0014] The first engaging component is connected to the second engaging component and the driving component respectively. The second engaging component is installed inside the air duct. The rotating rod assembly is rotatably connected to the second engaging component and the inner wall of the smoke hood.

[0015] As a further technical solution, the first meshing element includes a rack, the second meshing element includes a gear, and the rotating rod assembly includes a first rotating rod and a second rotating rod;

[0016] One end of the second rotating rod is rotatably connected to the eccentric position of the gear, and the other end is rotatably connected to the first rotating rod. The first rotating rod is fixedly connected to the inner wall of the smoke hood and rotatably connected to the support component located in the air duct.

[0017] As a further technical solution, the connection point between the first rotating rod and the second rotating rod is located between the connection point between the support and the gear and the connection point between the first rotating rod and the inner wall of the smoke hood.

[0018] As a further technical solution, the support component includes a support base and a support rod;

[0019] The support base is installed on the inner wall of the air duct, and the gear is installed on the support base;

[0020] One end of the support rod is fixedly connected to the support base, and the other end is rotatably connected to the first rotating rod.

[0021] As a further technical solution, the transmission component includes a first guide and a second guide;

[0022] The first guide member is fixedly installed on the inner wall of the air duct, the second guide member is slidably connected to the first guide member, and the rack is fixedly installed on the second guide member.

[0023] As a further technical solution, the transmission component also includes a transmission block and a connecting block;

[0024] The connecting block is connected to the transmission block and the driving component respectively, and the transmission block is fixedly connected to the second guide component.

[0025] As a further technical solution, the driving component includes a push rod motor;

[0026] The two ends of the push rod motor are connected to the air duct and the transmission component, respectively.

[0027] As a further technical solution, the smoke collection device also includes a mounting base;

[0028] One end of the push rod motor is fixed to the inner wall of the air duct via a mounting base, and the other end is connected to the transmission component for transmission.

[0029] As a further technical solution, a lifting hole is provided at the bottom of the fan mechanism;

[0030] The smoke collection mechanism extends or retracts into the fan mechanism through the lifting hole.

[0031] As a further technical solution, the fan mechanism includes a housing, which includes a rear plate and a bottom plate;

[0032] The lifting hole is located at one end of the base plate near the rear plate.

[0033] As a further technical solution, the smoke collection device also includes sensors and controllers;

[0034] The sensor is installed in the smoke collection device, and the controller receives the signal from the sensor to control the lifting and lowering of the smoke collection mechanism and the angle between the air duct and the smoke hood.

[0035] As a further technical solution, the sensor includes an image sensor;

[0036] The image sensor is mounted on the smoke collection device, and when the smoke collection device is working, the image sensor is located directly above the smoke collection area;

[0037] The image sensor captures the user's gestures and transmits them to the controller. The controller receives the gesture signals and uses them to control the raising and lowering of the smoke collection mechanism.

[0038] As a further technical solution, the sensor also includes a distance sensor;

[0039] The distance sensor is installed on the smoke collection mechanism. When the smoke collection device is working, the distance sensor is located directly above the smoke collection area.

[0040] The distance sensor collects the distance between the stove and the smoke inlet and transmits it to the controller. The controller receives the distance signal and uses it to control the angle between the air duct and the smoke hood.

[0041] The range hood provided in this embodiment of the invention includes a smoke collection device.

[0042] Compared with the prior art, the smoke collection device and range hood provided by the present invention have the following technical advantages:

[0043] The smoke collection device provided in this embodiment of the invention includes a fan mechanism and a smoke collection mechanism. The smoke collection mechanism is movably connected to the fan mechanism and can extend or retract vertically within the fan mechanism. The smoke collection mechanism includes an interconnected air guide pipe and a smoke hood. The smoke hood has a smoke inlet and can rotate relative to the air guide pipe to adjust the smoke hood to a horizontal or vertical position. When the cooker starts working, the smoke collection mechanism moves vertically relative to the fan mechanism and extends beyond the fan mechanism, causing the smoke hood to rotate relative to the air guide pipe and rotate to a horizontal position. At this time, the smoke inlet on the smoke hood is located directly above the cooker, and the generated fumes enter the smoke collection mechanism through the smoke inlet and are discharged through the fan mechanism. After the fumes are discharged, the smoke hood rotates relative to the air guide pipe to a vertical position, and the smoke collection mechanism moves vertically relative to the fan mechanism and retracts into the fan mechanism. At this time, the smoke inlet on the smoke hood is located inside the fan mechanism, preventing the smoke inlet from being exposed and preventing the spread of odors generated by oil stains. Attached Figure Description

[0044] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of the present invention, the drawings used in the description of the specific embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0045] Figure 1 This is a schematic diagram of the smoke collection mechanism in the smoke collection device provided in the embodiment of the present invention during operation;

[0046] Figure 2 This is a schematic diagram of the structure of the smoke collection device provided in an embodiment of the present invention;

[0047] Figure 3 This is a schematic diagram of the non-working state of the smoke collection mechanism in the smoke collection device provided in the embodiment of the present invention;

[0048] Figure 4 This is a cross-sectional view of the folded tube in the smoke collection device provided in an embodiment of the present invention when it is extended;

[0049] Figure 5 This is a cross-sectional view of the folded tube in the smoke collection device provided in an embodiment of the present invention when folded.

[0050] Figure 6 A simplified structural diagram of another arrangement of the smoke collection mechanism in the smoke collection device provided in the embodiment of the present invention;

[0051] Figure 7 This is a schematic diagram of the structure of the image sensor in the smoke collection device provided in an embodiment of the present invention;

[0052] Figure 8 This is a schematic diagram of the structure of the distance sensor in the smoke collection device provided in an embodiment of the present invention;

[0053] Figure 9 This is a schematic diagram of a distance sensor capturing a distance signal in a smoke collection device provided in an embodiment of the present invention;

[0054] Figure 10 This is a schematic diagram of the image sensor recognizing gestures in the smoke collection device provided in an embodiment of the present invention.

[0055] Icons: 100 - Fan mechanism; 110 - Lifting hole; 120 - Rear plate; 130 - Base plate;

[0056] 200 - Smoke collection mechanism; 210 - Air duct; 220 - Folded pipe; 230 - Smoke hood; 240 - Drive assembly;

[0057] 300 - Drive component; 310 - Push rod motor;

[0058] 400 - Transmission component; 410 - First meshing component; 420 - Second meshing component; 430 - Rotating rod assembly; 431 - First rotating rod; 432 - Second rotating rod; 440 - Transmission block; 450 - First guide component; 460 - Second guide component; 470 - Connecting block;

[0059] 500 - Support component; 540 - Engaging component support seat; 550 - Support rod;

[0060] 600-Sensor;

[0061] 700 - First arc surface; 710 - Second arc surface;

[0062] 800-Fixed base. Detailed Implementation

[0063] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0064] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0065] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Physical quantities in formulas, unless otherwise specified, should be understood as basic quantities in the International System of Units (SI), or derived quantities derived from basic quantities through mathematical operations such as multiplication, division, differentiation, or integration.

[0066] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0067] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0068] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0069] The smoke collection device provided in this embodiment of the invention includes: a fan mechanism 100 and a smoke collection mechanism 200. The smoke collection mechanism 200 is movably connected to the fan mechanism 100 and can extend or be stored in the fan mechanism 100 in the vertical direction.

[0070] The smoke collection mechanism 200 includes an interconnected air duct 210 and a smoke collection hood 230. The smoke collection hood 230 is provided with a smoke inlet and can rotate relative to the air duct 210 to adjust the smoke collection hood 230 to a horizontal or vertical state.

[0071] The relative movable connection between the smoke collection mechanism 200 and the fan mechanism 100 can be a sliding connection. This sliding connection can be configured such that a first sliding member is installed on the outer wall of the air duct 210, and a second sliding member is installed at a corresponding position on the inner wall of the fan mechanism 100. The first and second sliding members cooperate to achieve relative movement between the smoke collection mechanism 200 and the fan mechanism 100. The power component driving the smoke collection mechanism 200 relative to the fan mechanism 100 can be a push rod motor 310, a cylinder, a motor and gear rack combination, or a motor and belt drive assembly, etc., and a suitable connection structure and power component can be selected according to specific needs. The air duct 210 and the smoke hood 230 are interconnected and can rotate relative to each other. The smoke hood 230 is provided with a smoke inlet. To ensure that the smoke inlet is always perpendicular to the cookware position when the range hood is in operation, the smoke inlet can be located on the smoke hood 230. Figure 1 The sidewalls or bottom walls shown may also have smoke inlets on both the sidewalls and bottom walls of the smoke hood 230. In this application, the smoke inlets are only provided on the smoke hood 230. Figure 1 The bottom wall is shown. Specific combination. Figures 1 to 3 As shown, when the cooker starts working, the smoke collection mechanism 200 moves relative to the fan mechanism 100 and extends outside the fan mechanism 100, as... Figure 3 As shown, the air duct 210 and the fume hood 230 rotate relative to each other, making them perpendicular and the fume hood 230 horizontal. At this time, the smoke inlet on the fume hood 230 is directly above the cookware. Figure 1 As shown, the generated fumes are discharged outdoors through the smoke inlet; after the fumes are completely discharged, the duct 210 and the smoke hood 230 rotate relative to each other until they are on the same plane, as shown. Figure 2 As shown, the smoke collection mechanism 200 is movable relative to the fan mechanism 100 and retracts into the fan mechanism 100. At this time, the smoke inlet on the smoke hood 230 is located inside the fan mechanism 100 to avoid the smoke inlet being exposed and to prevent the spread of odors generated by oil stains.

[0072] In another implementation, such as Figure 6 As shown, a first arc surface 700 is provided at one end of the air duct 210 near the smoke hood 230, and a second arc surface 710 is provided at the corresponding position of the smoke hood 230, which slides and engages with the first arc surface 700. Sealing plates are provided on both the left and right sides of the air duct 210. The cross-section of the sealing plate is arc-shaped and is coaxial with the first arc surface 700. A gap is provided between the sealing plates on the two side walls. The air duct 210 and the smoke hood 230 are connected through the gap. A flexible sealing element is provided on the edge of the smoke hood 230, and the flexible sealing element abuts against the connecting element.

[0073] In another embodiment, the smoke collection mechanism 200 further includes a folded tube 220, the two ends of which are respectively connected to the air guide duct 210 and the smoke hood 230. (Specific details omitted) Figures 1 to 5 As shown, the cross-sectional shape of the folded tube 220 can be set according to specific requirements. In this application, the cross-sectional shape of the folded tube 220 is rectangular and is adapted to the air guide duct 210 and the smoke hood 230. When the air guide duct 210 and the smoke hood 230 are on the same plane, the folded tube 220 is in its natural state. When the air guide duct 210 and the smoke hood 230 are perpendicular to each other, one side of the folded tube 220 is compressed and the other side is extended, ensuring the relative position of the air guide duct 210 and the smoke hood 230 while maintaining the air guide duct 210 and the smoke hood 230 always being interconnected. The air guide duct 210 and the smoke hood 230 are connected through the folded tube 220, resulting in a simple structure.

[0074] When the range hood is working, the rotation of the smoke collection hood 230 relative to the air duct 210 can be achieved manually or by installing the drive assembly 240. In this application, the smoke collection mechanism 200 also includes the drive assembly 240; the drive assembly 240 is connected to the smoke collection hood 230 in a transmission manner, and the drive assembly 240 is used to drive the smoke collection hood 230 to rotate relative to the air duct 210.

[0075] The drive assembly 240 drives the smoke hood 230 to rotate relative to the air duct 210, providing driving force for the rotation of the smoke hood 230. This ensures that the smoke inlet on the side wall of the smoke hood 230 is directly above the cookware, eliminating the need for manual adjustment of the positional relationship between the smoke hood 230 and the air duct 210. This makes the adjustment process more convenient and safer, and improves the user experience.

[0076] In this embodiment, the optional technical solution is that the drive component 240 is located inside the air duct 210. The drive component 240 includes a drive member 300 and a transmission member 400. The drive member 300 is connected to the inner wall of the air duct 210 and the transmission member 400, and the transmission member 400 is connected to the inner wall of the smoke hood 230.

[0077] Specific combination Figure 3 and Figure 4 As shown, the drive component 300 is installed inside the air duct 210, and the transmission component 400 is located inside the air duct 210 and connected to the inner wall of the smoke hood 230 and the drive component 300. That is, neither the drive component 300 nor the transmission component 400 is exposed outside the air duct 210 or the smoke hood 230. The drive component 300 provides power for the smoke hood 230 to rotate relative to the air duct 210. At the same time, since the drive component 300 and the transmission component 400 are both located inside, the space volume of the air duct 210 and the smoke hood 230 is reduced, the drive component 240 is prevented from interfering with other components, and the aesthetics of the range hood are improved.

[0078] In the optional technical solution of this embodiment, the transmission component 400 includes a first meshing component 410, a second meshing component 420, and a rotating rod assembly 430; the first meshing component 410 is connected to the second meshing component 420 and the driving component 300 respectively; the second meshing component 420 is installed in the air duct 210; and the rotating rod assembly 430 is rotatably connected to the second meshing component 420 and the inner wall of the smoke hood 230.

[0079] The function of the transmission component 400 is to rotate the smoke hood 230 relative to the air duct 210 as the push rod motor 310 extends and retracts, so that the smoke inlet on the smoke hood 230 is directly above the cookware when the range hood is working. Therefore, the configuration of the transmission component 400 is not limited to a single form; it only needs to achieve the purpose of rotating the smoke hood 230 relative to the air duct 210 as the push rod motor 310 extends and retracts. For example, the transmission component 400 can adopt a linkage drive or a meshing drive, depending on the requirements. In this application, the transmission component 400 adopts a meshing drive. (Specific combination...) Figure 4 and Figure 5 As shown; the first engaging member 410 is connected to the push rod motor 310 and simultaneously engages with the second engaging member 420, which is installed on the inner wall of the air duct 210. The rotating rod assembly 430 is connected to both the second engaging member 420 and the inner wall of the smoke hood 230. The first engaging member 410 can be a gear or a rack, and the corresponding second engaging member 420 can be a rack or a gear. When the range hood starts working, the push rod motor 310 starts and extends, pushing the first engaging member 410 to move. As the first engaging member 410 engages with the second engaging member 420, the smoke hood 230 rotates relative to the air duct 210. When the range hood finishes working, the push rod motor 310 retracts. The movement process is consistent with the extension of the push rod motor 310, so that the smoke collection hood 230 and the air guide duct 210 are on the same plane. This makes it easy to store the smoke collection mechanism 200 in the return fan mechanism 100, reduce the space volume of the range hood, and improve the user's perception and the aesthetics of the range hood itself.

[0080] In the optional technical solution of this embodiment, the first meshing member 410 includes a rack, the second meshing member 420 includes a gear, and the rotating rod assembly 430 includes a first rotating rod 431 and a second rotating rod 432; one end of the second rotating rod 432 is rotatably connected to the eccentric position of the gear, and the other end is rotatably connected to the first rotating rod 431; one end of the first rotating rod 431 is fixedly connected to the inner wall of the smoke hood 230, and the other end is rotatably connected to the support member 500 provided in the air guide duct 210;

[0081] The connection point between the first rotating rod 431 and the second rotating rod 432 is located between the connection point between the support member 500 and the gear and the connection point between the first rotating rod 431 and the inner wall of the smoke hood 230.

[0082] Specific combination Figure 4 and Figure 5 As shown, in this application, the first meshing member 410 is configured as a rack, and the corresponding second meshing member 420 is configured as a gear. The rack is connected to the push rod motor 310 for transmission. The gear is fixedly positioned relative to the inner wall of the air duct 210, and the rack meshes with the gear. The two ends of the second rotating rod 432 are rotatably connected to the eccentric position of the gear and the first rotating rod 431, respectively. One end of the first rotating rod 431 is fixedly connected to the inner wall of the smoke hood 230, and the other end is rotatably connected to the support member 500. The connection point between the first rotating rod 431 and the second rotating rod 432 can be of two types. There are two configuration methods. The first is that the connection point between the first rotating rod 431 and the second rotating rod 432 is located between the connection point between the support member 500 and the gear, and between the connection point between the first rotating rod 431 and the inner wall of the smoke hood 230. The second is that the connection point between the support member 500 and the gear is located between the connection point between the first rotating rod 431 and the second rotating rod 432, and between the connection point between the first rotating rod 431 and the inner wall of the smoke hood 230. The configuration should be such that the smoke hood 230 rotates relative to the air duct 210. This application uses the first configuration method.

[0083] When the range hood starts working, the push rod motor 310 starts and extends, causing the rack to move downwards under driving force. Since the gear and the inner wall of the air duct 210 are in a fixed relative position, as the gear meshes with the rack, the gear is subjected to force... Figure 5 As shown, clockwise rotation causes the second rotating rod 432 to rotate eccentrically connected to the gear, changing the direction of motion of the second rotating rod 432. The second rotating rod 432 then pushes the first rotating rod 431 to rotate. Since the first rotating rod 431 is fixedly connected to the inner wall of the fume hood 230, it causes the fume hood 230 to rotate clockwise relative to the air duct 210 around the connection point between the first rotating rod 431 and the support member 500. This achieves the goal of positioning the smoke inlet on the fume hood 230 directly above the cookware when the range hood is operating. Figure 5 As shown; when the range hood finishes working, the push rod motor 310 retracts, the rack moves upward with the push rod motor 310, the gear rotates in the opposite direction under force, driving the first rotating rod 431 to rotate, causing the smoke collection hood 230 to rotate again relative to the air duct 210, so that the smoke collection hood 230 and the air duct 210 are on the same plane, which makes it easier to store the smoke collection mechanism 200 in the return fan mechanism 100, reducing the space volume of the range hood, improving the user's perception and the aesthetics of the range hood itself.

[0084] In the optional technical solution of this embodiment, the transmission component 400 includes a first guide component 450 and a second guide component 460; the first guide component 450 is fixedly connected to the inner wall of the air duct 210 and slidably connected to the second guide component 460; the second guide component 460 is connected to the driving component 300 in a transmission manner; and the rack is fixedly installed on the second guide component 460.

[0085] Specific combination Figure 4 and Figure 5 As shown, the first guide member 450 can be configured as a slide rail or a slide groove, and the corresponding second guide member 460 can be configured as a slide rail or a slide groove, with the slide groove and the slide rail slidingly engaged. The first guide member 450 is fixedly connected to the inner wall of the air duct 210, and the second guide member 460 is drivenly connected to the push rod motor 310. The rack is fixedly installed on the side of the second guide member 460 without a slide rail or slide groove. The fixed connection can be achieved by snap-fit, welding, threaded connection, etc. In this application, the connection between the rack and the second guide member 460 is a snap-fit, with one side having a buckle and the other side having a corresponding slot. Since the first guide member 450 is fixedly installed on the inner wall of the air duct 210, the push rod motor 310 extends or retracts, causing the first guide member 450 and the second guide member 460 to slide relative to each other, driving the rack to move, thereby causing the smoke hood 230 to rotate relative to the air duct 210. Since the rack and pinion motor 310 are connected by the second guide member 460, and the first guide member 450 and the second guide member 460 are slidably connected, the energy consumption of the push rod motor 310 during operation is reduced, and the stability of the smoke hood 230 relative to the air duct 210 when rotating is ensured.

[0086] In the optional technical solution of this embodiment, the transmission component 400 further includes a transmission block 440 and a connecting block 470; the connecting block 470 is connected to the transmission block 440 and the driving component 300 respectively, and the transmission block 440 is fixedly connected to the second guide component 460.

[0087] Specific combination Figure 5 As shown, the connecting block 470 is fixedly connected to the transmission block 440 and the drive end of the push rod motor 310. At the same time, the transmission block 440 is fixedly connected to the second guide member 460. The push rod motor 310 drives the second guide member 460 to move through the connecting block 470 and the transmission block 440, which is used to drive the smoke hood 230 to rotate relative to the air duct 210. Since the push rod motor 310 is driven by the connecting block 470 and the transmission block 440 to the second guide member 460, and the relative position of the second guide member 460 with the connecting block 470 and the transmission block 440 is fixed, it is avoided that the push rod motor 310 and the second guide member 460 rub against each other during the process of the push rod motor 310 driving the smoke hood 230 to rotate relative to the air duct 210. This ensures the stability of the range hood during operation, extends the service life of the range hood, and improves the user experience.

[0088] In the optional technical solution of this embodiment, the support member 500 further includes a meshing support seat 540 and a support rod 550;

[0089] One end of the meshing component support 540 is disposed on the inner wall of the air guide duct 210, and the gear is installed on the meshing component support 540;

[0090] One end of the support rod 550 is fixedly connected to the meshing support seat 540, and the other end is rotatably connected to the first rotating rod 431. The connection point between the support rod 550 and the second rotating rod 432 is located between the connection point between the support rod 550 and the first rotating rod 431 and the connection point between the support rod 550 and the inner wall of the smoke hood 230.

[0091] Specific combination Figure 5 As shown, the gear is mounted on the meshing support 540, which is fixedly mounted on the inner wall of the air duct 210. One end of the support rod 550 is rotatably connected to the first rotating rod 431, and the other end is fixedly connected to the inner wall of the air duct 210, or it can be fixedly connected to the meshing support 540. In this application, the other end of the support rod 550 is fixedly connected to the meshing support 540. There are two ways to connect the support rod 550 and the second rotating rod 431. The first way is that the support rod 550 and the second rotating rod 432 are connected in two ways. The connection point of rod 432 is located between the connection point of support rod 550 and the first rotating rod 431 and the connection point of support rod 550 and the inner wall of smoke hood 230; the second arrangement is that the connection point of support rod 550 and the first rotating rod 431 is located between the connection point of support rod 550 and the second rotating rod 432 and the connection point of support rod 550 and the inner wall of smoke hood 230; it is sufficient to enable the first rotating rod 431 to rotate relative to the connection point, so that the smoke hood 230 rotates relative to the air guide duct 210. This application adopts the first arrangement, specifically as follows: Figure 5 As shown. The gear is fixed in position relative to the inner wall of the air duct 210 through the meshing support 540, which prevents it from rubbing against the inner wall of the air duct 210 when rotating under the action of driving force; the support rod 550 provides support for the first rotating rod 431, ensuring the stability of the smoke hood 230 and the air duct 210 when the smoke hood 230 rotates relative to the air duct 210, thereby improving the safety and user experience of the range hood during use.

[0092] In the optional technical solution of this embodiment, the driving component 300 includes a push rod motor 310;

[0093] The two ends of the push rod motor 310 are connected to the air duct 210 and the transmission component 400, respectively.

[0094] Specific combination Figure 4 and Figure 5As shown, one end of the push rod motor 310 is fixedly connected to the inner wall of the air duct 210, and the other end is connected to the transmission component 400. The push rod motor 310 provides driving force to the smoke hood 230 through the transmission component 400, driving the smoke hood 230 to rotate relative to the air duct 210. When the range hood starts working, the push rod motor 310 starts, driving the transmission component 400 to rotate, causing the smoke hood 230 to rotate relative to the air duct 210. When the range hood stops working, the push rod motor 310 retracts, and the transmission component 400 moves again with the retraction of the push rod motor 310, driving the smoke hood 230 to rotate relative to the air duct 210, so that the smoke hood 230 and the air duct 210 are on the same plane, making it convenient for the smoke collection mechanism 200 to be stored in the fan mechanism 100.

[0095] In the optional technical solution of this embodiment, the smoke collection device includes a fixed base 800;

[0096] One end of the push rod motor 310 is fixed to the inner wall of the air duct 210 via the fixed base 800, and the other end is connected to the transmission component 400 via the connecting block 470.

[0097] Specific combination Figure 4 and Figure 5 As shown, the mounting base 800 is fixedly installed on the inner wall of the air duct 210, and the push rod motor 310 is fixed in relative position to the inner wall of the air duct 210 through the mounting base 800. The fixed relative position of the push rod motor 310 and the inner wall of the air duct 210 ensures the stability of the smoke collection hood 230 driven by the push rod motor 310 to rotate relative to the air duct 210, thus improving the user experience. The push rod motor 310 is fixedly connected to the inner wall of the air duct 210 through the mounting base 800, which avoids the push rod motor 310 from rubbing against the inner wall of the air duct 210 during the rotation of the smoke collection hood 230 relative to the air duct 210, thereby extending the service life of the air duct 210, the push rod motor 310, and the range hood.

[0098] In this embodiment, the bottom end of the fan mechanism 100 is provided with a lifting hole 110; the smoke collection mechanism 200 extends out of or retracts into the fan mechanism 100 through the lifting hole 110.

[0099] The fan mechanism 100 includes a housing, which includes a rear plate 120 and a base plate 130; a lifting hole 110 is located at one end of the base plate 130 near the rear plate 120.

[0100] The lifting hole 110 can be located at one end of the base plate 130 near the rear plate 120, at one end of the base plate 130 away from the rear plate 120, or in the middle of the base plate 130, depending on the requirements. In this application, the lifting hole 110 is located at one end of the base plate 130 near the rear plate 120, specifically in conjunction with... Figures 1 to 5As shown. The lifting hole 110 is located at one end of the base plate 130 near the rear plate 120, and the fan mechanism 100 is mounted to the wall through the rear plate 120. When the range hood starts working, the smoke collection mechanism 200 extends out of the fan mechanism 100 through the lifting hole 110, and the smoke hood 230 rotates relative to the air duct 210 in a direction away from the rear plate 120. There is a certain space between the smoke hood 230 and the base plate 130, which visually reduces the size of the range hood and improves the user's experience when using the range hood.

[0101] In the optional technical solution of this embodiment, the smoke collection device further includes a sensor 600 and a controller; the sensor 600 is disposed in the smoke collection device, and the controller receives the signal from the sensor 600 to control the lifting and lowering of the smoke collection mechanism 200 and the angle between the air duct 210 and the smoke hood 230.

[0102] Specific combination Figure 7 and Figure 8 As shown, when users use different cookware, the distance between the cookware and the smoke collection device varies due to the different sizes of the cookware. The distance of the smoke collection mechanism 200 extending from the fan mechanism 100 needs to be adjusted according to the size of the cookware. When the range hood is started, the sensor 600 collects specific information and transmits it to the controller. Based on the specific information fed back by the sensor 600, the controller controls the distance of the smoke collection mechanism 200 extending from the fan mechanism 100 and the timing of the relative rotation of the air duct 210 and the smoke hood 230, so as to avoid interference between the smoke collection device and the cookware while ensuring the smoke removal effect of the range hood.

[0103] In this embodiment, the optional technical solution includes an image sensor 600. The image sensor is mounted on the smoke collection device and is positioned directly above the smoke collection area when the smoke collection device is in operation. The image sensor collects user gestures and transmits them to the controller. The controller receives the gesture signals and uses them to control the lifting and lowering of the smoke collection mechanism 200.

[0104] Specific combination Figure 7 As shown, an image sensor is mounted on the base plate 130 to capture user gestures and transmit them to the controller. The controller receives the gesture signals and controls the smoke collection mechanism 200 to extend or retract into the fan mechanism 100 at appropriate times. When using the range hood of this application for the first time, a gesture information database can be established to facilitate the adoption of user gesture information and better control the timing of the smoke collection mechanism 200 extending or retracting into the fan mechanism 100. Since the palm is mostly away from the fan mechanism 100 during cooking, to prevent accidental touches, the palm can be facing upwards as the data point when capturing user gesture information, improving the accuracy of the image sensor's gesture data acquisition and enhancing the user experience.

[0105] In the optional technical solution of this embodiment, the sensor 600 further includes a distance sensor;

[0106] The distance sensor is installed on the smoke collection mechanism 200. When the smoke collection device is working, the distance sensor is located directly above the smoke collection area. The distance sensor collects the distance between the stove and the smoke inlet and transmits it to the controller. The controller receives the distance signal and uses it to control the angle between the air duct 210 and the smoke hood 230.

[0107] Specific combination Figure 8 As shown, a distance sensor is installed on the side of the fume hood 230 with the smoke inlet. The distance sensor collects the distance between the cookware and the smoke inlet, and then transmits the distance information to the controller. The controller receives the distance signal and controls the length of the smoke collection mechanism 200 extending beyond the fan mechanism 100, that is, controls the distance between the smoke collection mechanism 200 and the cookware. At the same time, it controls the timing and angle of rotation of the fume hood 230 relative to the air duct 210. The height from the smoke inlet to the bottom of the cookware is maintained at 400mm, and the height between the smoke inlet and the top of the cookware is 200mm. If it is too high, the oil fumes will diffuse and the smoke removal effect cannot be guaranteed; if it is too low, the fume hood 230 will interfere with the cookware, affecting the user's operation.

[0108] The specific distance sensor ranging settings are as follows: The distance sensor detects a cross-sectional line from point a to point e. Based on the distance from point a to point e, three key points b, h1, and d are calculated. Points b and d are the points captured by the distance sensor after detecting a large difference in distance between the left and right sides. Point h1 is the vertical distance detected when the distances from points b and d are both less than h1. The angle ∠X is calculated from points b and d, and then the value of h1 is calculated. Finally, h1 is subtracted from the original default height C1 to obtain the height h3 of the cookware. The height of the smoke hood is adaptively adjusted within a 230° range based on the height of h2 to achieve the optimal smoke control area. In this application, the default height C1 is set to 400mm. Through calculation, the adaptive adjustment range of the smoke hood 230° is 200mm. Given the included angle X and the two legs b and d of the isosceles triangle, the height of h1 is calculated. The optimal adaptive smoke control height is obtained by subtracting h1 from the default height of 400mm and then adding 200mm. The calculation formula is c2 = c1 - {b*cos(X / 2)} + 200. Where c2 is the adaptive smoke control height, such as... Figure 10 As shown, c1 is the original default height, as... Figure 9 As shown, b is the isosceles length, X is the isosceles angle, and 200 is the optimal distance between the top of the cookware and the smoke collection chamber.

[0109] The location and number of distance sensors and image sensors can be slightly adjusted according to the different shapes of the shovel, as long as they can capture the signal and transmit it to the controller, thereby realizing the adaptive function of the range hood.

[0110] The range hood provided by this invention includes a smoke collection device. A distance sensor and an image sensor collect information and transmit it to a controller. The controller controls the lifting and lowering of the smoke collection mechanism 200 and the angle between the air duct 210 and the smoke hood 230, so as to achieve the purpose of positioning the range hood, the adaptive smoke collection area, and the smoke inlet directly above the cookware, ensuring the smoke removal effect of the range hood.

[0111] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A smoke collection device, characterized in that, include: A fan mechanism (100) and a smoke collection mechanism (200), wherein the smoke collection mechanism (200) is movably connected to the fan mechanism (100) and can extend or be stored in the fan mechanism (100) in the vertical direction. The smoke collection mechanism (200) includes an interconnected air duct (210) and a smoke hood (230). The smoke hood (230) is provided with a smoke inlet and can rotate relative to the air duct (210) to adjust the smoke hood (230) to be in a horizontal or vertical state. The smoke inlet is located on the bottom wall when the smoke hood (230) is in a horizontal state; The air duct (210) has a first arc surface (700) at one end near the smoke hood (230), and the smoke hood (230) has a second arc surface (710) at the corresponding position that slides with the first arc surface (700). Sealing plates are provided on both the left and right sides of the air duct (210). The cross-section of the sealing plate is arc-shaped and is coaxial with the first arc surface (700). There is a gap between the sealing plates on the two side walls. The air duct (210) and the smoke hood (230) are connected through the gap.

2. The smoke collection device according to claim 1, characterized in that, The smoke collection mechanism (200) also includes a drive assembly (240); The drive assembly (240) is connected to the smoke hood (230) for driving the smoke hood (230) to rotate relative to the air duct (210).

3. The smoke collection device according to claim 2, characterized in that, The drive assembly (240) is located inside the air duct (210) and includes a drive component (300) and a transmission component (400). The drive component (300) is connected to the inner wall of the air duct (210) and the transmission component (400) respectively, and the transmission component (400) is connected to the inner wall of the smoke hood (230).

4. The smoke collection device according to claim 3, characterized in that, The transmission component (400) includes a first engaging component (410), a second engaging component (420), and a rotating rod assembly (430). The first engaging member (410) is connected to the second engaging member (420) and the driving member (300) respectively. The second engaging member (420) is installed in the air duct (210). The rotating rod assembly (430) is connected to the inner wall of the second engaging member (420) and the smoke hood (230).

5. The smoke collection device according to claim 4, characterized in that, The first meshing member (410) includes a rack, the second meshing member (420) includes a gear, and the rotating rod assembly (430) includes a first rotating rod (431) and a second rotating rod (432). One end of the second rotating rod (432) is rotatably connected to the eccentric position of the gear, and the other end is rotatably connected to the first rotating rod (431). The first rotating rod (431) is fixedly connected to the inner wall of the smoke hood (230) and rotatably connected to the support member (500) provided in the air guide pipe (210).

6. The smoke collection device according to claim 5, characterized in that, The connection point between the first rotating rod (431) and the second rotating rod (432) is located between the connection point between the support member (500) and the gear and the connection point between the first rotating rod (431) and the inner wall of the smoke hood (230).

7. The smoke collection device according to claim 5, characterized in that, The support member (500) also includes a support base (540) and a support rod (550); The support base (540) is installed on the inner wall of the air duct (210), and the gear is installed on the support base (540). One end of the support rod (550) is fixedly connected to the support base (540), and the other end is rotatably connected to the first rotating rod (431).

8. The smoke collection device according to claim 5, characterized in that, The transmission component (400) includes a first guide (450) and a second guide (460); The first guide (450) is fixedly installed on the inner wall of the air duct (210), the second guide (460) is slidably connected to the first guide (450) and connected to the drive (300), and the rack is fixedly installed on the second guide (460).

9. The smoke collection device according to claim 8, characterized in that, The transmission component (400) also includes a transmission block (440) and a connecting block (470). The connecting block (470) is connected to the transmission block (440) and the driving member (300) respectively, and the transmission block (440) is fixedly connected to the second guide member (460).

10. The smoke collection device according to claim 5, characterized in that, The drive unit (300) includes a push rod motor (310); The two ends of the push rod motor (310) are connected to the air duct (210) and the transmission component (400), respectively.

11. The smoke collection device according to claim 10, characterized in that, The smoke collection device also includes a fixing base (800); One end of the push rod motor (310) is fixedly mounted on the inner wall of the air duct (210) through the fixed base (800), and the other end is connected to the transmission component (400) for transmission.

12. The smoke collection device according to claim 1, characterized in that, The bottom end of the fan mechanism (100) is provided with a lifting hole (110). The smoke collection mechanism (200) extends out of or retracts into the fan mechanism (100) through the lifting hole (110).

13. The smoke collection device according to claim 12, characterized in that, The fan mechanism (100) includes a housing, which includes a rear plate (120) and a bottom plate (130). The lifting hole (110) is located at one end of the base plate (130) near the rear plate (120).

14. The smoke collection device according to claim 1, characterized in that, The smoke collection device also includes a sensor (600) and a controller; The sensor (600) is installed on the smoke collection device. The controller receives the signal from the sensor (600) and uses it to control the lifting and lowering of the smoke collection mechanism (200) and the angle between the air duct (210) and the smoke hood (230).

15. The smoke collection device according to claim 14, characterized in that, The sensor (600) includes an image sensor; The image sensor is mounted on the smoke collection device, and when the smoke collection device is working, the image sensor is located directly above the smoke collection area; The image sensor collects user gestures and transmits them to the controller. The controller receives the gesture signals and uses them to control the raising and lowering of the smoke collection mechanism (200).

16. The smoke collection device according to claim 15, characterized in that, The sensor (600) also includes a distance sensor (600). The distance sensor (600) is disposed on the smoke collection mechanism (200). When the smoke collection device is working, the distance sensor (600) is located directly above the smoke collection area. The distance sensor (600) collects the distance between the stove and the smoke inlet and transmits it to the controller. The controller receives the distance signal and uses it to control the angle between the air duct (210) and the smoke hood (230).

17. A range hood, characterized in that, Includes the smoke collection device according to any one of claims 1-16.

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