A guide plate switch structure of a cylindrical range hood

Abstract

This utility model discloses a baffle switch structure for a cylindrical range hood, comprising: a range hood body, an air inlet at the bottom of the range hood body and a flat panel light assembly located below the air inlet, the projected area of ​​the flat panel light assembly along the direction of gas intake completely covering the air inlet, the range hood body having an outer shell portion located on the periphery of the flat panel light assembly, and an annular air intake gap connected to the air inlet being defined between the outer shell portion and the flat panel light assembly. In this range hood structure, the flat panel light assembly is located at the bottom of the range hood body opposite the air inlet. When negative pressure suction is generated inside the range hood body, some of the smoke flows upward and contacts the lower surface of the flat panel light assembly before flowing towards the air intake gap, while some smoke directly enters the air intake gap and is thus sucked away through the air inlet. The flat panel light assembly serves both as a baffle for the range hood and as a lighting fixture; the flat panel light assembly can be designed with a large area, which is beneficial for widening the illumination range and achieving the function of large-area lighting.

Description

Technical Field

[0001] This utility model relates to a guide plate switch structure for a cylindrical range hood. Background Technology

[0002] Range hoods installed by hanging on all four sides above an island cabinet or bar counter are collectively referred to as island-style range hoods. In order to further reduce the space occupied by the range hood on the horizontal plane, island-style range hoods with a cylindrical shape and a cylindrical outer shell have emerged. The smoke inlet and baffle of this cylindrical range hood are set on the bottom end face, which has the characteristics of beautiful and simple appearance.

[0003] Similarly, for aesthetic reasons, this type of range hood typically uses a filter instead of an oil cup. The filter is located at the smoke inlet and above the baffle plate, thus requiring frequent cleaning or replacement. However, the baffle plate is circular, and its side edge is generally connected to the lower end of the cylindrical outer shell via a horizontally arranged pivot. When the baffle plate rotates to open the smoke inlet, even a small opening angle will cause interference with the cylindrical outer shell. Furthermore, the resulting angle is too small, making cleaning or replacing the filter very difficult and affecting ease of use. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a guide vane switch structure for a cylindrical range hood with a large opening angle, which can form a large operating space for handling the filter screen.

[0005] A guide plate switch structure for a cylindrical range hood according to an embodiment of the present invention includes: a cylindrical range hood housing arranged vertically, a smoke inlet at the lower end of the range hood housing, a filter element detachably installed at the smoke inlet, a guide plate located below the filter element at the lower end of the range hood housing, the guide plate being a circular plate matching the diameter of the range hood housing, and the side of the guide plate being movably connected to the lower end of the range hood housing via a linkage mechanism, the linkage mechanism being able to drive the guide plate to flip downward relative to the range hood housing and to move downward to expose the filter element.

[0006] The guide plate switch structure of the cylindrical range hood according to the embodiment of this utility model has at least the following beneficial effects:

[0007] When cleaning, maintenance, or filter replacement is required, the user applies a downward pulling force to the edge of the guide plate of the above-mentioned cylindrical range hood. The linkage mechanism drives the guide plate to flip downward relative to the range hood housing, thereby generating a downward displacement. This avoids the guide plate interfering with the range hood housing when it flips downward, and at the same time creates a larger operating space for the user to pick up and place the filter, which is also conducive to cleaning the inside of the range hood housing.

[0008] In some embodiments of this utility model, the linkage mechanism includes a first bracket fixed to the lower end of the smoke machine housing, a second bracket fixed to the outer peripheral edge of the upper end face of the guide plate, and a swing arm member whose two ends are respectively rotatably connected to the first bracket and the second bracket. An elastic member is provided between the first bracket and the swing arm member to prevent the swing arm member from swinging downward to assist the guide plate in blocking the smoke inlet.

[0009] In some embodiments of this utility model, the first bracket and the swing arm are rotatably connected by a first pivot. The elastic element includes two torsion springs passing through the first pivot. The ends of the two torsion springs that are close to each other are connected to form a U-shaped segment. The first bracket is provided with a first positioning groove for inserting the U-shaped segment. The swing arm is provided with a second positioning groove for inserting the ends of the two torsion springs that are far apart from each other.

[0010] In some embodiments of this utility model, the first bracket, the swing arm, and the second bracket are all made of iron material, and a first magnet extending downward is fixed on the first bracket to attract the swing arm to swing upward.

[0011] In some embodiments of this utility model, the lower end of the range hood housing is provided with a circular base that matches the outline size of the guide plate. The smoke inlet is opened on the circular base. The first bracket is installed on the side of the circular base located at the smoke inlet. The guide plate is circumferentially distributed with multiple second magnets at intervals around its center. The circular base is made of iron material. The second magnets are attracted to the circular base, thereby forming an air intake gap between the guide plate and the circular base.

[0012] In some embodiments of this utility model, the outer peripheral wall of the disc base is provided with a circular decorative element that extends downward to surround the outer periphery of the disc base and the guide plate.

[0013] In some embodiments of this utility model, the circular base is suspended below the range hood housing by a plurality of vertically arranged bolt assemblies. An annular light plate, concentrically arranged with the range hood housing, is sandwiched between the upper end face of the circular base and the lower end face of the range hood housing. The diameter of the annular light plate is smaller than that of the range hood housing. A light-transmitting gap is formed between the upper end of the circular decorative piece and the lower end of the range hood housing. The light emitted by the annular light plate passes through the light-transmitting gap radially outward from the range hood housing.

[0014] In some embodiments of this utility model, a glass plate is also included. The glass plate has at least two mounting holes that correspond one-to-one with the cylindrical range hood. The diameter of the mounting holes is larger than the diameter of the annular light plate and smaller than the diameter of the range hood housing. The annular light plate is located inside the mounting holes. The glass plate is sandwiched between the range hood housing and the circular base and is directly opposite the annular light plate.

[0015] In some embodiments of this utility model, the guide plate is provided with a light-emitting component inside, and the lower end surface of the guide plate is made of a light-transmitting material.

[0016] In some embodiments of this utility model, the smoke inlet is a rectangular opening, the filter element is a rectangular filter screen that matches the rectangular opening, the outer peripheral wall of the rectangular filter screen is provided with a plurality of telescopic snap-fit ​​parts, and the inner peripheral wall of the rectangular opening is provided with a slot that cooperates with the telescopic snap-fit ​​parts.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is a schematic diagram showing an embodiment of the guide plate switch structure of the cylindrical range hood of this utility model in the state of exposing the filter element;

[0020] Figure 2 for Figure 1 The layout screenshot of the embodiment is a schematic diagram;

[0021] Figure 3 for Figure 1 A schematic diagram of the separate structure of the guide plate, linkage mechanism, and disc base in the embodiment;

[0022] Figure 4 This is a schematic diagram of another embodiment of the guide plate switch structure of the cylindrical range hood of this utility model.

[0023] Figure label:

[0024] Range hood housing 100; smoke inlet 110; filter element 120; baffle plate 200; linkage mechanism 300; first bracket 310; first pivot 311; first positioning groove 312; second bracket 320; swing arm 330; second positioning groove 331; elastic element 340; torsion spring 341; U-shaped segment 342; first magnet 410; second magnet 420; circular base 500; circular decorative element 600; ring light panel 700; glass plate 800. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0026] In the description of this utility model, it should be understood that the directional descriptions, such as the terms "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and 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 this utility model.

[0027] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 utility model based on the specific circumstances.

[0029] See Figures 1 to 3This utility model discloses a guide plate switch structure for a cylindrical range hood, comprising: a cylindrical range hood housing 100 arranged vertically, a smoke inlet 110 at the lower end of the range hood housing 100, a filter element 120 detachably installed at the smoke inlet 110, and a guide plate 200 located below the filter element 120 at the lower end of the range hood housing 100. The guide plate 200 is a circular plate matching the diameter of the range hood housing 100. The side of the guide plate 200 is movably connected to the lower end of the range hood housing 100 via a linkage mechanism 300. The linkage mechanism 300 can drive the guide plate 200 to flip downward and move downward relative to the range hood housing 100 to expose the filter element 120.

[0030] When the above-mentioned cylindrical range hood's baffle switch structure requires cleaning, maintenance, or replacement of the filter element 120, the user applies a downward pulling force to the edge of the baffle 200. The linkage mechanism 300 drives the baffle 200 to flip downward relative to the range hood housing 100, while simultaneously causing downward displacement. This avoids the baffle 200 interfering with the range hood housing 100 when it flips downward, and at the same time creates a larger operating space for the user to pick up and place the filter element 120, which is also beneficial for cleaning the inside of the range hood housing 100.

[0031] See Figures 1 to 3 In some embodiments of this utility model, the linkage mechanism 300 includes a first bracket 310 fixed to the lower end of the smoke machine housing 100, a second bracket 320 fixed to the outer peripheral edge of the upper end face of the guide plate 200, and a swing arm 330 rotatably connected to the first bracket 310 and the second bracket 320 at both ends respectively. An elastic member 340 is provided between the first bracket 310 and the swing arm 330 to prevent the swing arm 330 from swinging downward to assist the guide plate 200 in blocking the smoke inlet 110. Understandably, when the swing arm 330 swings downward relative to the first bracket 310, the second bracket 320 can rotate relative to the swing arm 330 to form a large-angle deflection relative to the first bracket 310. At this time, the swing arm 330 slightly lowers the height of the guide plate 200, thus avoiding interference with the range hood housing 100. When the swing arm 330 swings upward relative to the first bracket 310, the second bracket 320 can rotate relative to the swing arm 330 to be parallel to the first bracket 310, making the guide plate 200 parallel to the lower end face of the range hood housing 100. When the guide plate 200 is parallel to the lower end face of the range hood housing 100, there is a stable structure between the guide plate 200 and the range hood housing 100 that can position the guide plate 200. This stable structure can be connected magnetically or by a snap-fit. After the stable structure is unlocked, the guide plate 200 automatically swings downward under the action of gravitational torque. During this process, the elastic element 340 can act as a buffer.

[0032] See Figure 2 and Figure 3 In some embodiments of this utility model, the first bracket 310 and the swing arm 330 are rotatably connected via a first pivot 311. The elastic element 340 includes two torsion springs 341 passing through the first pivot 311. The ends of the two torsion springs 341 that are close to each other are connected to form a U-shaped segment 342. The first bracket 310 is provided with a first positioning groove 312 for inserting the U-shaped segment 342, and the swing arm 330 is provided with a second positioning groove 331 for inserting the ends of the two torsion springs 341 that are far apart from each other. The elastic element 340 with the above structure can provide a larger torque to achieve a better buffering and damping effect, preventing the gravitational torque of the guide plate 200 from being too large and swinging at a large angle before hitting the range hood housing 100. It should be noted that the elastic element 340 is used to assist the guide plate 200 in swinging upward and resetting, but it cannot counteract the gravitational torque of the guide plate 200.

[0033] See Figure 3 In some embodiments of this utility model, the first bracket 310, the swing arm 330, and the second bracket 320 are all made of iron material. The first bracket 310 is fixed with a downwardly extending first magnet 410 for attracting the swing arm 330 to swing upward. The first magnet 410 attracts the swing arm 330 to swing upward so that the guide plate 200 is parallel to the filter 120 to block the smoke inlet 110.

[0034] See Figure 2 and Figure 3 In some embodiments of this utility model, the lower end of the range hood housing 100 is provided with a circular base 500 that matches the outline size of the guide plate 200. The smoke inlet 110 is opened on the circular base 500. The first bracket 310 is installed on one side of the circular base 500 located at the smoke inlet 110. The guide plate 200 has a plurality of second magnets 420 distributed circumferentially around its center. The circular base 500 is made of iron material. The second magnets 420 are attracted to the circular base 500, thereby forming an air intake gap between the guide plate 200 and the circular base 500. Understandably, the smoke inlet 110 and filter element 120 are both located on the disc base 500, which helps reduce the difficulty of production and assembly. When the guide plate 200 is flipped upwards to a horizontal state to block the smoke inlet 110 and filter element 120, the second magnet 420 is attracted to the lower end surface of the disc base 500, preventing the guide plate 200 from falling off. Of course, in other embodiments, a snap-fit ​​structure can be used between the guide plate 200 and the disc base 500 to replace the way the second magnet 420 attracts the iron disc base 500.

[0035] See Figure 1 and Figure 2 In some embodiments of this utility model, the outer peripheral wall of the disc base 500 is provided with a circular decorative element 600 extending downward to surround the outer periphery of the disc base 500 and the guide plate 200. The circular decorative element 600 can cover the air intake gap between the guide plate 200 and the disc base 500, making it more aesthetically pleasing.

[0036] See Figure 2 In some embodiments of this utility model, the circular base 500 is suspended below the range hood housing 100 by a plurality of vertically arranged bolt assemblies. An annular lamp plate 700, concentrically arranged with the range hood housing 100, is sandwiched between the upper end face of the circular base 500 and the lower end face of the range hood housing 100. The diameter of the annular lamp plate 700 is smaller than that of the range hood housing 100. There is a light-transmitting gap between the upper end of the circular decorative piece 600 and the lower end of the range hood housing 100. The light emitted by the annular lamp plate 700 passes through the light-transmitting gap radially outward along the range hood housing 100, forming an outwardly diverging light ring.

[0037] See Figure 3 In some embodiments of this utility model, a glass plate 800 is further included. The glass plate 800 has at least two mounting holes corresponding one-to-one with the cylindrical range hoods. The diameter of the mounting holes is larger than the diameter of the annular light plate 700 and smaller than the diameter of the range hood housing 100. The annular light plate 700 is located within the mounting holes. The glass plate 800 is sandwiched between the range hood housing 100 and the circular base 500 and faces the annular light plate 700. It is understood that at least two cylindrical range hoods are connected by the glass plate 800 to define their distance. The annular light plate 700 emits light radially outward, which is projected along the interior of the glass plate 800, creating a dazzling refraction effect.

[0038] In some embodiments of this utility model, the guide plate 200 has a light-emitting component inside, and the lower end surface of the guide plate 200 is made of a light-transmitting material. The guide plate 200 serves both as a guide and as a lighting fixture. The guide plate 200 can be designed with a large area, which is beneficial for widening the illumination range and realizing the function of large-area lighting.

[0039] In some embodiments of this utility model, in order to facilitate the disassembly and installation of the filter element 120, the smoke inlet 110 is a rectangular opening, the filter element 120 is a rectangular filter screen that matches the rectangular opening, the outer peripheral wall of the rectangular filter screen is provided with a plurality of telescopic snap-fit ​​parts, and the inner peripheral wall of the rectangular opening is provided with a slot that cooperates with the telescopic snap-fit ​​parts.

[0040] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0041] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A guide vane switch structure for a cylindrical range hood, characterized in that, include: A cylindrical range hood housing (100) is arranged vertically. The lower end of the range hood housing (100) is provided with a smoke inlet (110). A filter element (120) is detachably installed at the smoke inlet (110). The lower end of the range hood housing (100) is provided with a guide plate (200) located below the filter element (120). The guide plate (200) is a circular plate that matches the diameter of the range hood housing (100). The side of the guide plate (200) is movably connected to the lower end of the range hood housing (100) through a linkage mechanism (300). The linkage mechanism (300) can drive the guide plate (200) to flip downward and move downward relative to the range hood housing (100) to expose the filter element (120).

2. The guide plate switch structure of a cylindrical range hood according to claim 1, characterized in that: The linkage mechanism (300) includes a first bracket (310) fixed to the lower end of the smoke machine housing (100), a second bracket (320) fixed to the outer peripheral edge of the upper end face of the guide plate (200), and a swing arm (330) rotatably connected to the first bracket (310) and the second bracket (320) at both ends respectively. An elastic member (340) is provided between the first bracket (310) and the swing arm (330) to prevent the swing arm (330) from swinging downward to assist the guide plate (200) in blocking the smoke inlet (110).

3. The guide plate switch structure of a cylindrical range hood according to claim 2, characterized in that: The first bracket (310) and the swing arm (330) are rotatably connected by a first pivot (311). The elastic element (340) includes two torsion springs (341) passing through the first pivot (311). The two torsion springs (341) are connected at their close ends to form a U-shaped segment (342). The first bracket (310) is provided with a first positioning groove (312) for inserting the U-shaped segment (342). The swing arm (330) is provided with a second positioning groove (331) for inserting the two torsion springs (341) at their far ends.

4. The guide plate switch structure of a cylindrical range hood according to claim 3, characterized in that: The first bracket (310), the swing arm (330), and the second bracket (320) are all made of iron material. The first bracket (310) is fixed with a first magnet (410) that extends downward to attract the swing arm (330) to swing upward.

5. The guide plate switch structure of a cylindrical range hood according to claim 2, characterized in that: The lower end of the range hood housing (100) is provided with a circular base (500) with the same outline size as the guide plate (200). The smoke inlet (110) is opened on the circular base (500). The first bracket (310) is installed on the circular base (500) on one side of the smoke inlet (110). The guide plate (200) has a plurality of second magnets (420) distributed circumferentially around its center. The circular base (500) is made of iron material. The second magnets (420) are attracted to the circular base (500) so that an air intake gap is formed between the guide plate (200) and the circular base (500).

6. The guide plate switch structure of a cylindrical range hood according to claim 5, characterized in that: The outer peripheral wall of the disc base (500) is provided with a ring-shaped decorative element (600) extending downward to surround the outer periphery of the disc base (500) and the guide plate (200).

7. The guide vane switch structure of a cylindrical range hood according to claim 6, characterized in that: The circular base (500) is suspended below the range hood housing (100) by a plurality of vertically arranged bolt assemblies. An annular lamp plate (700) is sandwiched between the upper end face of the circular base (500) and the lower end face of the range hood housing (100) and is concentrically arranged with the range hood housing (100). The diameter of the annular lamp plate (700) is smaller than that of the range hood housing (100). There is a light-transmitting gap between the upper end of the circular decorative piece (600) and the lower end of the range hood housing (100). The light emitted by the annular lamp plate (700) passes through the light-transmitting gap radially outward from the range hood housing (100).

8. The guide plate switch structure of a cylindrical range hood according to claim 7, characterized in that: It also includes a glass plate (800), on which at least two mounting holes corresponding one-to-one with the cylindrical range hood are provided. The diameter of the mounting holes is larger than the diameter of the annular light plate (700) and smaller than the diameter of the range hood housing (100). The annular light plate (700) is located inside the mounting holes. The glass plate (800) is sandwiched between the range hood housing (100) and the circular base (500) and is directly opposite the annular light plate (700).

9. The guide plate switch structure of a cylindrical range hood according to claim 1, characterized in that: The guide plate (200) is equipped with a light-emitting component inside, and the lower end surface of the guide plate (200) is made of a light-transmitting material.

10. The guide vane switch structure of a cylindrical range hood according to claim 3, characterized in that: The smoke inlet (110) is a rectangular opening, and the filter element (120) is a rectangular filter screen that matches the rectangular opening. The outer peripheral wall of the rectangular filter screen is provided with multiple telescopic snap-fit ​​parts, and the inner peripheral wall of the rectangular opening is provided with a slot that cooperates with the telescopic snap-fit ​​parts.

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