Nakajima range hood

Abstract

The present invention provides an island range hood, relating to the technical field of kitchen appliances. The island range hood comprises a range hood main unit and a fume hood disposed below the main unit. The island range hood also includes a fume cage hood disposed circumferentially along the fume hood and movable up and down relative to the fume hood. The fume cage hood comprises a frame and multiple panels disposed around the frame to form a fume cage chamber, which communicates with a fume chamber within the fume hood. The island range hood also includes a drive mechanism connected to the fume cage hood and the fume hood, the drive mechanism being configured to drive the fume cage hood up and down, thereby retracting or extending the fume cage hood. This island range hood effectively alleviates the technical problem of poor fume trapping performance in existing island range hoods.

Description

Technical Field

[0001] The present invention relates to the technical field of kitchen appliances, and in particular to an island range hood. Background Art

[0002] An island-style range hood (English: ISLAND HOOD) is a type of suspended range hood that is mounted on the ceiling (ceiling wall) above a bar or island cabinet, suspended on all four sides, and is used to absorb and exhaust oil and gas from the bar or island.

[0003] With the influence of European lifestyle culture, open kitchens represented by island-style range hoods have become the mainstream and trend of modern kitchens. Island-style range hoods often have the following features:

[0004] 1. The island-style range hood is equipped with a hanging bracket and is installed without being against the wall on any of its four sides;

[0005] 2. The island-style range hood has no back, and the front, back, left, and right sides can all be considered the front;

[0006] 3. The decorative cover (chimney) of the island-style range hood is located in the middle of the range hood and is closed on all sides. The decorative cover of the island-style range hood is generally higher than that of ordinary range hoods;

[0007] Because island-style range hoods are not against walls on all four sides, the smoke is more susceptible to air flow. Furthermore, island-style range hoods have no back, so the smoke extraction effect from each direction must not vary significantly. Furthermore, because island-style range hoods are generally hung higher, the smoke collection effect requirements for the range hood are higher than those for ordinary range hoods.

[0008] As oil smoke rises, it will continue to diffuse in the air. Therefore, the higher the oil smoke rises, the larger the volume of air containing the oil smoke will be. Since island-type range hoods are taller than ordinary range hoods, they require a larger area for the smoke collection chamber.

[0009] like Figure 1 As shown, the smoke collection chamber of existing island range hoods is generally drawn, which has limitations on the depth of the draw. When cooking, the range hood cannot absorb all the fumes. Due to the insufficient depth of the smoke collection chamber, the smoke chamber is small, allowing some fumes to escape easily, polluting the kitchen environment. Summary of the Invention

[0010] The object of the present invention is to provide a center island range hood to alleviate the technical problem of poor smoke trapping effect of the center island range hood in the prior art.

[0011] The present invention provides a range hood having a central island structure, comprising a range hood main unit and a fume hood disposed below the range hood main unit, the range hood also comprising a fume cage hood disposed circumferentially along the fume hood and capable of moving up and down relative to the fume hood, the fume cage hood comprising a frame and a plurality of panels, the plurality of panels being disposed around the periphery of the frame to form a fume cage cavity, the fume cage cavity being in communication with a fume collection cavity of the fume hood;

[0012] The island range hood further comprises a driving mechanism connected to the smoke cage hood and the smoke collecting hood, and the driving mechanism is configured to drive the smoke cage hood to move up and down so as to retract or extend the smoke cage hood.

[0013] Furthermore, the smoke cage hood includes a first panel and a second panel that are spaced apart from each other, and the space enclosed between the first panel and the second panel forms the smoke cage cavity;

[0014] The frame includes a first lining plate arranged on the inner surface of the first panel and a second lining plate arranged on the inner surface of the second panel, and the first lining plate and the second lining plate are connected by a plurality of reinforcing ribs.

[0015] Furthermore, the first panel and the second panel are both curved panels, the concave surface of the first panel is arranged opposite to the concave surface of the second panel, and the two ends of the first panel are spaced apart from the two ends of the second panel;

[0016] The cage smoke hood further includes a third panel and a fourth panel, wherein the third panel is arranged at one end of the first panel and the second panel, and the fourth panel is arranged at the other end of the first panel and the second panel;

[0017] The space enclosed by the first panel, the second panel, the third panel and the fourth panel forms the smoke cage cavity.

[0018] Furthermore, the first panel is a curved glass panel, and the second panel is a curved glass panel;

[0019] And / or, the island range hood further includes a control switch for controlling the up and down movement of the cage hood, and the control switch is arranged on the first panel or the second panel.

[0020] Furthermore, the depth of the smoke cage cavity of the smoke cage hood is greater than the height of the smoke collecting hood.

[0021] Furthermore, the cross-sectional area of ​​the smoke cage cavity along the horizontal plane, the cross-sectional area of ​​the smoke collecting cavity along the horizontal plane, and the cross-sectional area of ​​the smoke guide cavity of the housing of the range hood main unit along the horizontal plane gradually decrease along the flow path of the oil smoke.

[0022] Furthermore, the outer wall of the smoke hood is provided with a first guide structure extending in the up and down directions, and the inner wall of the smoke cage hood is provided with a second guide structure extending in the up and down directions. The first guide structure is adapted to the second guide structure so that the smoke cage hood can move up and down relative to the smoke collection hood.

[0023] Furthermore, the first guide structure is a slide groove extending in the up-down direction, and the second guide structure is a slide rail extending in the up-down direction, and the slide rail is provided on the inner surface of the panel.

[0024] Furthermore, the outer wall of the smoke collecting hood is provided with a plurality of recessed grooves, and the plurality of sliding grooves are correspondingly embedded in the plurality of recessed grooves.

[0025] Furthermore, the driving mechanism includes a push rod motor, the push rod motor is installed on the smoke hood, and the output end of the push rod motor is connected to the cage smoke hood.

[0026] Beneficial effects:

[0027] The present invention provides a range hood having a central island structure, comprising a range hood main unit and a smoke collecting hood arranged below the range hood main unit. In addition, the range hood having a central island structure further comprises a smoke cage hood arranged along the circumference of the smoke collecting hood and capable of moving up and down relative to the smoke collecting hood, wherein the smoke cage hood comprises a frame and a plurality of panels, the plurality of panels being arranged around the periphery of the frame to form a smoke cage cavity, and the smoke cage cavity is connected to the smoke collecting cavity of the smoke collecting hood; in addition, the range hood having a central island structure further comprises a driving mechanism, which drives the smoke cage hood to move up and down through the driving mechanism so as to retract or extend the smoke cage hood.

[0028] The island range hood provided by the present invention can drive the cage smoke hood to move up and down relative to the smoke collecting hood through the driving mechanism, so that the cage smoke hood has a retracted state and an extended state. When the island range hood is stopped, the cage smoke hood is in the retracted state, thereby reducing the occupied space of the island range hood; when the island range hood is working, the driving mechanism drives the cage smoke hood to move downward, so that the frame and the panel are extended, thereby causing the negative pressure area generated by the island range hood to move downward and closer to the gas stove, and, through the extension of the cage smoke hood, the depth of the oil fume suction cavity is greatly increased. As the cage smoke hood moves downward, the cage smoke cavity increases, and after the cage smoke cavity is connected with the smoke collecting cavity, the space of the oil fume suction cavity is invisibly increased, thereby improving the efficiency of oil fume suction, effectively alleviating the problem of some oil fume escaping, and further alleviating the problem of kitchen environment being polluted by oil fume.

[0029] Compared with the limitations of the smoke collection chamber in the prior art, the island range hood provided by the present invention greatly increases the depth and space of the smoke collection chamber, thereby improving the oil fume extraction effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0031] Figure 1 A schematic diagram of a conventional island range hood;

[0032] Figure 2 A first schematic diagram of a range hood in an island range hood in a retracted state provided by an embodiment of the present invention;

[0033] Figure 3 A second schematic diagram of the island range hood provided by an embodiment of the present invention showing the hood in the retracted state;

[0034] Figure 4 A third schematic diagram of the island range hood provided by an embodiment of the present invention showing the hood in a retracted state;

[0035] Figure 5 A schematic diagram of a range hood in an island range hood in an extended state provided by an embodiment of the present invention;

[0036] Figure 6 A schematic diagram of the oil smoke path of the island range hood provided in an embodiment of the present invention;

[0037] Figure 7 A schematic diagram of an island range hood and a gas stove provided in an embodiment of the present invention;

[0038] Figure 8 A schematic structural diagram of a smoke hood provided in an embodiment of the present invention;

[0039] Figure 9 A schematic structural diagram of a smoke collection hood provided in an embodiment of the present invention;

[0040] Figure 10 A schematic structural diagram of a connecting plate provided in an embodiment of the present invention;

[0041] Figure 11 A schematic structural diagram of a driving mechanism provided in an embodiment of the present invention;

[0042] Figure 12 A schematic diagram of another island range hood provided in an embodiment of the present invention.

[0043] icon:

[0044] 100-range hood host;

[0045] 200-fume hood; 210-recessed groove;

[0046] 300 - smoke hood; 310 - frame; 311 - first lining board; 312 - second lining board; 313 - reinforcement rib; 321 - first panel; 322 - second panel; 323 - third panel; 324 - fourth panel;

[0047] 400-driving mechanism; 510-slideway; 520-slide rail;

[0048] 600-connection plate; 700-control switch; 800-net cover; 900-gas stove;

[0049] A-cage smoke chamber; B-smoke collecting chamber; C-smoke guiding chamber. DETAILED DESCRIPTION

[0050] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0051] This embodiment provides a range hood with an island design. Figures 2 to 12 The island range hood includes a range hood main unit 100 and a smoke hood 200 arranged below the range hood main unit 100. In addition, the island range hood also includes a cage smoke hood 300 arranged along the circumference of the smoke hood 200 and capable of moving up and down relative to the smoke hood 200, wherein the cage smoke hood 300 includes a frame 310 and a plurality of panels, which are arranged around the outer periphery of the frame 310 to form a cage smoke cavity A, and the cage smoke cavity A is connected to the smoke collection cavity B of the smoke hood 200; in addition, the island range hood also includes a driving mechanism 400, which drives the cage smoke hood 300 to move up and down through the driving mechanism 400 to retract or extend the cage smoke hood 300.

[0052] The island range hood provided in this embodiment can drive the cage smoke hood 300 to move up and down relative to the smoke collecting hood 200 through the driving mechanism 400, so that the cage smoke hood 300 has a retracted state and an extended state. When the island range hood is stopped, the cage smoke hood 300 is in the retracted state, reducing the occupied space of the island range hood; when the island range hood is working, the driving mechanism 400 drives the cage smoke hood 300 to move downward, causing the frame 310 and multiple panels to extend, thereby causing the negative pressure area generated by the island range hood to move downward, closer to the gas stove 900, and, through the extension of the cage smoke hood 300, the depth of the oil fume suction cavity is greatly increased. As the cage smoke hood 300 moves downward, the cage smoke cavity A is connected with the smoke collecting cavity B, which invisibly increases the space of the oil fume suction cavity, thereby improving the efficiency of oil fume suction, effectively alleviating the problem of some oil fume escaping, and further alleviating the problem of the kitchen environment being polluted by oil fume.

[0053] Compared with the limitations of the smoke collecting cavity in the prior art, the island range hood provided in this embodiment greatly increases the depth and space of the smoke suction cavity, thereby improving the smoke suction effect.

[0054] The specific structure of the Nakajima range hood will be described in detail below:

[0055] The island range hood in this embodiment includes a range hood main unit 100 and a fume hood 200 arranged below the range hood main unit 100. Specifically, the range hood main unit 100 includes a shell and a fan arranged inside the shell. The fan is mounted on the shell by screws, and the air outlet seat is mounted on the shell by screws. The air outlet seat is connected to the external exhaust pipe. In this way, the fan can drive the oil smoke to be discharged to the outside through the air outlet seat and the external exhaust pipe. The smoke hood 200 is connected to the range hood main unit 100. Specifically, a connecting plate 600 is provided at the bottom of the outer shell, and the smoke hood 200 is connected to the connecting plate 600, so that the smoke hood 200 is fixedly installed on the bottom of the outer shell through the connecting plate 600. The connecting plate 600 has an inner cavity, which can trap smoke and act as a buffer. Furthermore, a mesh cover 800 is provided below the smoke hood 200, and an oil cup is provided at the lowest point of the mesh cover 800. In this way, when the oil smoke passes through the mesh cover 800, the oil droplets therein are intercepted by the mesh cover 800, and the oil droplets flow into the oil cup along the mesh cover 800, thereby realizing the collection of oil droplets and effectively alleviating the impact of oil droplets falling on kitchen hygiene. In addition, the range hood main unit 100 also includes a main unit panel, which is mounted on the outer shell by screws. It should be noted here that the specific structure and working principle of the range hood main unit can also refer to the existing technology, which will not be elaborated here.

[0056] Considering how to improve the efficiency of oil fume suction and alleviate the problem of oil fume escape, in this embodiment, a cage smoke hood 300 that can move up and down is provided on the periphery of the smoke collecting hood 200. Under the driving action of the driving mechanism 400, the cage smoke hood 300 can move up and down relative to the smoke collecting hood 200 to facilitate the adjustment of the space of the cage smoke cavity A. Therefore, when the cage smoke cavity A moves downward and the depth and space are increased, the oil fume suction efficiency can be promoted. At the same time, the distance between the cage smoke cavity A and the gas stove 900 is reduced, so that the negative pressure area is closer to the gas stove 900. Therefore, the downward movement of the cage smoke hood 300 can improve the efficiency of oil fume suction and effectively alleviate the escape of oil fume.

[0057] Furthermore, in order to achieve the up and down movement of the smoke cage hood 300 relative to the smoke collection hood 200, a guide structure is added between the two in this embodiment. Specifically, a plurality of first guide structures are set on the outer wall of the smoke collection hood 200 along the up and down directions, and correspondingly, a plurality of second guide structures are set on the inner wall of the smoke cage hood 300 along the up and down directions. In this way, through the coordinated use of the first guide structure and the second guide structure, the guiding effect of the smoke cage hood 300 is achieved, ensuring that the smoke cage hood 300 can move up and down stably.

[0058] like Figure 9 As shown, the first guide structure is a slide groove 510, and the second guide structure is a slide rail 520, that is, a slide groove 510 extending in the up and down directions is provided on the outer wall of the smoke hood 200, and a slide rail 520 extending in the up and down directions is provided on the inner wall of the smoke cage hood 300. In this way, when the smoke cage hood 300 is arranged around the smoke collection hood 200, the sliding connection between the smoke cage hood 300 and the smoke collection hood 200 is realized by cooperating with the slide groove 510 and the slide rail 520, so that the smoke cage hood 300 can move in the up and down directions.

[0059] Of course, in other embodiments, the first guide structure can be a slide rail 520, the second guide structure can be a slide groove 510, or the first guide structure and the second guide structure can be other structures used in conjunction with each other. The specific method and setting position of the first guide structure and the second guide structure are not limited here, as long as the cage smoke hood 300 and the smoke collection hood 200 can be slidably matched.

[0060] As a preferred embodiment, please continue to refer to Figure 9In this embodiment, the outer wall of the smoke hood 200 is provided with multiple recessed grooves 210, specifically four recessed grooves 210. Correspondingly, a slide groove 510 is provided within each recessed groove 210. Furthermore, the slide groove 510 is completely embedded within the recessed groove 210, that is, the groove wall of the slide groove 510 does not protrude from the recessed groove 210. This ensures that when the smoke hood 300 is placed around the periphery of the smoke hood 200, the gap between the two is sufficiently small (contact), and the interaction between the slide groove 510 and the slide rail 520 is not affected, thereby making the movement of the smoke hood 300 more stable. Furthermore, the slide groove 510 is fixed within the recessed groove 210 by screws, which ensures both installation stability and ease of disassembly.

[0061] In an optional implementation of this embodiment, if Figure 8 As shown, the cage smoke hood 300 includes a first panel 321 and a second panel 322 that are relatively spaced apart. The space enclosed between the first panel 321 and the second panel 322 is the cage smoke chamber A. The frame 310 includes a first lining plate 311, a second lining plate 312 and a plurality of reinforcing ribs 313. Specifically, the first lining plate 311 is arranged on the inner surface of the first panel 321, and the second lining plate 312 is arranged on the inner surface of the second panel 322. The first lining plate 311 and the second lining plate 312 are connected by reinforcing ribs 313. Specifically, along the length direction of the first lining plate 311 and the second lining plate 312, a plurality of reinforcing ribs 313 are spaced apart. Considering that the frame 310 In order to improve the overall stability and specific installation conditions of the frame 310, in this embodiment, the reinforcing ribs 313 at both ends of the length direction near the first lining plate 311 and the second lining plate 312 are arranged densely, and preferably two groups of reinforcing ribs 313 are set at each end to improve the firmness of the connection between the first lining plate 311 and the second lining plate 312, and ensure the overall stability of the frame 310. At the same time, the reinforcing ribs 313 near the middle of the first lining plate 311 and the second lining plate 312 are arranged sparsely, and preferably two groups of reinforcing ribs 313 are arranged to avoid the range hood host 100, and the reinforcing ribs 313 at both ends of the length direction of the first lining plate 311 and the second lining plate 312 are arranged symmetrically on the left and right. Thus, the first lining plate 311, the second lining plate 312, and the plurality of reinforcing ribs 313 are assembled together to form the frame 310. The first panel 321 is mounted on the front side of the frame 310 (the front side of the island range hood, i.e., the side facing the user) via the first lining plate 311, and the second panel 322 is mounted on the rear side of the second frame 310 (the rear side of the island range hood, i.e., the side facing away from the user) via the second lining plate 312. Thus, the first panel 321, the second panel 322, and the frame 310 are assembled together to form the smoke cage 300, and the space between the first panel 321 and the second panel 322 is the smoke cage chamber A. Preferably, the smoke cage 300 herein can be shaped like a clamshell, comprising two oval outer shells with identical sides, forming a larger smoke cage structure.

[0062] Furthermore, the first panel 321 and the second panel 322 are both arc-shaped plates, and the concave surface of the first panel 321 and the concave surface of the second panel 322 are arranged opposite to each other, and there is a certain distance between one end of the first panel 321 and the corresponding end of the second panel 322, and there is a certain distance between the other end of the first panel 321 and the corresponding end of the second panel 322; considering that the two ends of the first panel 321 arranged along the circumference of the cage smoke hood 300 and the two ends of the second panel 322 arranged along the circumference of the cage smoke hood 300 are spaced apart and a small amount of oil smoke may escape, in this embodiment, preferably, a third panel 323 is provided at one end and a fourth panel 324 is provided at the other end, so that the first panel 321, the second panel 322, the third panel 323 and the fourth panel 324 are respectively arranged around the frame 310, and the four panels are fixedly connected to the frame 310, thereby forming the cage smoke hood 300. Figure 8 As shown, the smoke cage hood 300 is in an arc-shaped shell shape, and correspondingly, the outer shape of the smoke collecting hood 200 is also in an arc-shaped shell shape to achieve the coordinated installation of the two.

[0063] Further preferably, the frame 310 adopts a metal structure to improve the strength and rigidity of the smoke cage hood 300, thereby ensuring the overall stability of the smoke cage hood 300; the first panel 321 and the second panel 322 are preferably curved glass panels, which not only ensure the wrapping of the smoke hood 200, but also improve the aesthetics, providing users with a better experience.

[0064] It should be noted here that in this embodiment, four sets of slide rails 520 are set on the inner wall of the cage smoke hood 300, wherein two sets of slide rails 520 are set at intervals on the inner surface of the first panel 321, and two sets of slide rails 520 are set at intervals on the inner surface of the second panel 322. Specifically, the slide rails 520 are fixed to the first panel 321 and the second panel 322 by screws, and are highly stable and easy to disassemble.

[0065] In other embodiments, the smoke hood 300 may also be a ring-shaped structure, specifically as follows: Figure 12 As shown, the smoke cage hood 300 includes an annular side panel, so that the smoke cage hood 300 can completely surround the periphery of the smoke collection hood 200; and the smoke cage hood 300 can also move up and down relative to the smoke collection hood 200 under the driving action of the driving mechanism 400 to adjust the size of the smoke cage cavity A and the distance from the gas stove 900, so as to adjust the working efficiency of the center island range hood according to actual conditions.

[0066] In an optional implementation manner of this embodiment, the smoke hood 200 is mainly composed of a smoke hood body, a smoke hood lining plate and a smoke hood reinforcement rib. Figure 9As shown, the smoke hood body, smoke hood lining, and smoke hood reinforcement ribs are fixed together using screws and welding to form a frame structure similar in shape to the smoke cage hood 300, facilitating the installation of the smoke cage hood 300 with the smoke hood 200. The frame structure of the entire smoke hood 200 saves some space, allowing some internal space to be used to accommodate components. For example, the drive mechanism 400 can be placed inside the smoke hood 200 to avoid the appearance of the drive mechanism 400 being placed outside.

[0067] In an optional technical solution of this embodiment, the lifting and lowering of the smoke hood 300 is powered by the drive mechanism 400, and the opening and closing of the drive mechanism 400 is controlled by a control switch 700. Specifically, the control switch 700 is located on a panel located on the front side of the island range hood (the first panel 321 or the second panel 322). Preferably, the control switch 700 is a flat LCD module. It should be noted that the control principle of the control switch 700 can be referenced in the prior art and will not be elaborated here.

[0068] In the optional technical solution of this embodiment, the smoke cage hood 300 is arranged on the periphery of the smoke collecting hood 200, and the depth (the dimension in the vertical direction) of the smoke cage cavity A of the smoke cage hood 300 is greater than the height of the smoke collecting hood 200. In this way, it can be ensured that the smoke cage hood 300 and the smoke collecting hood 200 have a certain amount of moving space in the vertical direction, thereby facilitating the up and down movement of the smoke cage hood 300 without being interfered with by the smoke collecting hood 200; and, since the depth of the smoke cage cavity 300 is greater than the height of the smoke collecting hood 200, the smoke collecting hood 200 can be covered in real time during the up and down movement of the smoke cage hood 300, thereby improving the aesthetics of the island range hood to a certain extent and improving the user experience.

[0069] In the optional technical solution of this embodiment, the cross-sectional area of ​​the smoke cage cavity A along the horizontal plane, the cross-sectional area of ​​the smoke collecting cavity B along the horizontal plane, and the cross-sectional area of ​​the smoke guide cavity C of the housing of the range hood main unit 100 along the horizontal plane gradually decrease along the flow path of the oil smoke, that is, the cross-sectional area of ​​the oil smoke intake cavity gradually decreases from bottom to top. Figure 6 As shown, the oil fume flow path of the Nakajima range hood is divided into three levels. When the oil fume passes through this path, the cross-sectional area gradually decreases, causing the oil fume to be gradually compressed. The airflow is relatively smooth and there will be no airflow vortexes generated due to the sudden compression of the oil fume, which will collide with each other to generate noise and affect the air volume. Therefore, through the design of the above-mentioned cavities, the air volume of the Nakajima range hood is increased, the noise is reduced, and the user experience is improved.

[0070] Considering the lighting problem in the cooking environment, a lighting lamp is provided in this embodiment. Figure 7As shown, lighting lamps are installed on the left and right sides of the smoke hood 200. Specifically, the lighting lamps are installed on the smoke hood 200 by snapping, and the light emitted by the lighting lamps just covers the gas stove 900. Therefore, during the cooking process, the lighting lamps can make the environment brighter, ensure a better cooking environment, and enhance the user experience.

[0071] In the optional technical solution of this embodiment, the drive mechanism 400 includes a push rod motor, which is installed on the smoke hood 200. Its output end is the end of the push rod, which is connected to the cage smoke hood 300. The push rod motor is equipped with a Hall switch, and the pulse signal is controlled by a control element, so that multiple push rods can move synchronously, ensuring the smooth operation of the cage smoke hood 300. It should be noted that the working principle of the push rod motor can also refer to the existing technology and will not be elaborated here. Of course, the drive mechanism 400 can also adopt other methods, such as a gear rack method, a screw method, etc., which are not limited here.

[0072] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements 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 range hood comprising a range hood main unit (100) and a fume hood (200) disposed below the range hood main unit (100), characterized in that: The invention comprises a cage smoke hood (300) arranged along the circumference of the smoke collecting hood (200) and capable of moving up and down relative to the smoke collecting hood (200), the cage smoke hood (300) comprising a frame (310) and a plurality of panels, the plurality of panels being arranged around the periphery of the frame (310) to form a cage smoke cavity (A), the cage smoke cavity (A) being in communication with a smoke collecting cavity (B) of the smoke collecting hood (200); The island range hood further comprises a driving mechanism (400) connected to the smoke cage hood (300) and the smoke collecting hood (200), wherein the driving mechanism (400) is configured to drive the smoke cage hood (300) to move up and down, so as to retract or extend the smoke cage hood (300); The smoke cage hood (300) comprises a first panel (321) and a second panel (322) that are spaced apart from each other, the space enclosed between the first panel (321) and the second panel (322) forming the smoke cage cavity (A), and the first panel (321) and the second panel (322) are glass plates; The frame (310) comprises a first lining plate (311) provided on the inner surface of the first panel (321) and a second lining plate (312) provided on the inner surface of the second panel (322); The depth of the smoke cage cavity (A) of the smoke cage hood (300) is greater than the height of the smoke collecting hood (200), and the smoke cage hood (300) covers the smoke collecting hood (200) in real time during the process of moving up and down.

2. The island range hood according to claim 1, characterized in that: The first lining plate (311) and the second lining plate (312) are connected via a plurality of reinforcing ribs (313).

3. The island range hood according to claim 2, characterized in that: The first panel (321) and the second panel (322) are both curved panels, the concave surface of the first panel (321) and the concave surface of the second panel (322) are arranged opposite to each other, and the two ends of the first panel (321) and the two ends of the second panel (322) are respectively spaced apart; The cage smoke hood (300) further includes a third panel (323) and a fourth panel (324), wherein the third panel (323) is arranged at one end of the first panel (321) and the second panel (322), and the fourth panel (324) is arranged at the other end of the first panel (321) and the second panel (322); The space enclosed between the first panel (321), the second panel (322), the third panel (323) and the fourth panel (324) forms the smoke cage cavity (A).

4. The island range hood according to claim 3, characterized in that: The island range hood further comprises a control switch (700) for controlling the upward and downward movement of the cage hood (300); the control switch (700) is arranged on the first panel (321) or the second panel (322).

5. The island range hood according to any one of claims 1 to 4, characterized in that: The cross-sectional area of ​​the smoke cage cavity (A) along the horizontal plane, the cross-sectional area of ​​the smoke collecting cavity (B) along the horizontal plane, and the cross-sectional area of ​​the smoke guiding cavity (C) of the housing of the range hood main unit (100) along the horizontal plane gradually decrease along the flow path of the oil smoke.

6. The island range hood according to any one of claims 1 to 4, characterized in that: The outer wall of the smoke hood (200) is provided with a first guide structure extending in an up-down direction, and the inner wall of the smoke cage hood (300) is provided with a second guide structure extending in an up-down direction, and the first guide structure is adapted to the second guide structure so that the smoke cage hood (300) can move up and down relative to the smoke hood (200).

7. The island range hood according to claim 6, characterized in that: The first guide structure is a slide groove (510) extending in the up-down direction, and the second guide structure is a slide rail (520) extending in the up-down direction. The slide rail (520) is arranged on the inner surface of the panel.

8. The island range hood according to claim 7, characterized in that: The outer wall of the smoke collecting hood (200) is provided with a plurality of recessed grooves (210), and the plurality of sliding grooves (510) are correspondingly embedded in the plurality of recessed grooves (210).

9. The island range hood according to any one of claims 1 to 4, characterized in that: The driving mechanism (400) comprises a push rod motor, the push rod motor is mounted on the smoke hood (200), and the output end of the push rod motor is connected to the smoke cage hood (300).

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