Island type range hood

Abstract

The invention belongs to the technical field of household appliances, and discloses a middle island type range hood. The island type range hood comprises a main box mechanism, an exhaust fume collecting hood and a lifting mechanism, the exhaust fume collecting hood is located below the main box mechanism and communicated with the main box mechanism, the lifting mechanism is connected with the main box mechanism and the exhaust fume collecting hood, and the lifting mechanism is used for driving the exhaust fume collecting hood to ascend and descend; the exhaust fume collecting hood comprises a hood body, a turning plate driving assembly and two turning plates, and a fume inlet is formed in the bottom surface of the hood body; the two opposite sides, in the first horizontal direction, of the cover body are rotationally connected with the turning plates. The turning plate driving assembly is connected with the turning plate, and the turning plate driving assembly is used for driving the turning plate to rotate, so that the turning plate can be switched between a first position for shielding the smoke inlet and a second position for turning towards the outer side of the cover body to open the smoke inlet. According to the island type range hood, a smoke gathering area can be defined by arranging the turning plates, oil smoke escape is reduced, and the smoke exhaust effect is improved.

Description

Technical Field

[0001] This invention relates to the field of household appliance technology, and in particular to an island-style range hood. Background Technology

[0002] With the influence of European lifestyle culture, open kitchens, represented by island-style range hoods, have become the mainstream and trend in modern kitchens. Island-style range hoods are suspended from the ceiling above bar counters or island cabinets, suspended on all four sides, and are used to extract cooking fumes from the bar counter or island cabinet.

[0003] Most existing island-style range hoods are flat European-style models with a fixed overall height. In order not to affect the user's view, the height is generally set too high, resulting in poor smoke extraction. In addition, the appearance is not novel and lacks a sense of technology, failing to provide users with a good user experience. Summary of the Invention

[0004] The purpose of this invention is to provide an island-style range hood that can solve the problems of poor smoke extraction and poor user experience of existing range hoods.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] An island-style range hood includes a main housing mechanism, a smoke collection hood, and a lifting mechanism. The smoke collection hood is located below the main housing mechanism and communicates with the main housing mechanism. The lifting mechanism connects the main housing mechanism and the smoke collection hood, and is used to drive the smoke collection hood to rise and fall.

[0007] The smoke collection hood includes:

[0008] The cover has a smoke inlet on its bottom surface;

[0009] Two flaps are rotatably connected to opposite sides of the cover along the first horizontal direction;

[0010] A flap driving assembly is connected to the flap and is used to drive the flap to rotate so that the flap can switch between a first position that blocks the smoke inlet and a second position that flips outward to open the smoke inlet.

[0011] As an alternative to the aforementioned island-style range hood, the bottom surface of the hood is recessed to form a smoke-collecting cavity, and the smoke inlet is located on the top surface of the smoke-collecting cavity;

[0012] And / or, the cover is a rectangular cover, the first horizontal direction is the width direction of the cover, the flap extends along the second horizontal direction, the second horizontal direction is the length direction of the cover, and the second horizontal direction is perpendicular to the first horizontal direction.

[0013] As an optional solution for the above-mentioned island-style range hood, the ends of the two flaps that are opposite to each other along the first horizontal direction are rotatably connected to the inner wall of the smoke collection chamber. When the two flaps are in the first position, the two flaps are located inside the smoke collection chamber.

[0014] And / or, the smoke collection hood further includes an oil cup, which is suspended inside the smoke collection chamber. When the flap is in the first position, the two flaps block the bottom opening of the smoke collection chamber, and the oil cup is located above the flap.

[0015] As an optional solution for the aforementioned island-style range hood, the flap drive assembly includes a connecting rod structure, which is connected to the flap and is parallel to a vertical plane parallel to the first horizontal direction.

[0016] As an alternative to the above-mentioned island-style range hood, the side wall of at least one end of the hood along the second horizontal direction is provided with a sandwich layer, and at least part of the flap drive assembly is disposed in the sandwich layer. The second horizontal direction is perpendicular to the first horizontal direction, and the output end of the flap drive assembly extends out of the sandwich layer and is respectively connected to the two flaps on both sides.

[0017] As an optional solution for the aforementioned island-style range hood, the flap drive assembly includes:

[0018] A flip-up drive unit is located within the interlayer and connected to the cover;

[0019] The active rod is connected at its middle part to the output shaft of the flipping drive, and the active rod can rotate in a vertical plane parallel to the first horizontal direction;

[0020] Two driven rod assemblies are provided, with each end of the driving rod hinged to a driven rod assembly. Each driven rod assembly includes a first transmission rod, a second transmission rod, and a third transmission rod that are hinged sequentially. The first transmission rod is hinged to the driving rod, the third transmission rod is hinged to the flap, and the middle part of the second transmission rod is rotatably connected to the cover.

[0021] As an optional solution for the above-mentioned island-style range hood, a smoke collection chamber is formed inside the hood, the smoke collection chamber is connected to the main box mechanism, the flap drive assembly is located in the middle of the smoke collection chamber along the second horizontal direction, the first horizontal direction is perpendicular to the second horizontal direction, and the output end of the flap drive assembly extends out of the smoke collection chamber and is respectively connected to the two flaps on both sides.

[0022] As an optional solution for the aforementioned island-style range hood, the flap drive assembly includes:

[0023] The bracket is fixed to the cover.

[0024] A linear drive unit is disposed on the bracket, and the output end of the linear drive unit can move in the vertical direction;

[0025] Two linkage assemblies are mounted on the bracket. One end of each linkage assembly is hinged to the output end of the linear drive, and the other end of each linkage assembly passes through the cover and is hinged to the flap.

[0026] As an optional solution for the aforementioned island-style range hood, the connecting rod assembly includes:

[0027] A first link, one end of which is hinged to the bracket;

[0028] The second link has one end hinged to the other end of the first link, the second link slides through the cover, and the other end of the second link is hinged to the flap.

[0029] The third link has one end hinged to the middle of the second link and the other end hinged to the output end of the linear drive.

[0030] As an optional solution for the aforementioned island-style range hood, the lifting mechanism includes:

[0031] The guide rail assembly includes a fixed guide rail and a sliding member that are slidably engaged. The fixed guide rail is provided at each corner of the main box mechanism and the sliding member is connected to the smoke collection hood.

[0032] A lifting drive assembly is disposed within the main housing mechanism, and the output end of the lifting drive assembly is connected to the smoke collection hood.

[0033] The beneficial effects of this invention are:

[0034] In the island-style range hood provided by this invention, flip-up panels are connected to opposite sides of the hood. When the flip-up panels are in the first position, the two panels together cover the smoke inlet at the bottom of the hood to prevent it from being exposed, thus improving aesthetics. When the flip-up panels are in the second position, they flip outward relative to the hood, not only opening the smoke inlet for fume extraction, but also allowing the two panels to work together with the hood to form a smoke-gathering area. The flip-up panels effectively block the fumes, reducing their escape and improving the fume extraction effect. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the island-style range hood provided in Embodiment 1 of the present invention;

[0036] Figure 2 This is a cross-sectional view of the island-style range hood provided in Embodiment 1 of the present invention;

[0037] Figure 3 This is a schematic diagram of the first structure of the island-style range hood provided in Embodiment 1 of the present invention when the two flaps are in the second position;

[0038] Figure 4 This is an exploded view of the smoke hood provided in Embodiment 1 of the present invention;

[0039] Figure 5 This is a schematic diagram of the structure of the flap drive assembly in the island-style range hood provided in Embodiment 1 of the present invention;

[0040] Figure 6 This is a structural schematic diagram of the active rod and driven rod assembly in the island-style range hood provided in Embodiment 1 of the present invention;

[0041] Figure 7 This is a schematic diagram of the principle of the driving rod and driven rod assembly provided in Embodiment 1 of the present invention;

[0042] Figure 8 This is a schematic diagram of the second structure of the island-style range hood provided in Embodiment 1 of the present invention when the two flaps are in the second position;

[0043] Figure 9 This is a schematic diagram of the third structure of the island-style range hood provided in Embodiment 1 of the present invention when the two flaps are in the second position;

[0044] Figure 10 This is a schematic diagram of the fourth structure of the island-style range hood provided in Embodiment 1 of the present invention when the two flaps are in the second position;

[0045] Figure 11 yes Figure 10 A magnified view of a section at point A in the middle;

[0046] Figure 12 yes Figure 10 A magnified view of a section at point B in the middle;

[0047] Figure 13 This is a schematic diagram of the island-style range hood provided in Embodiment 1 of the present invention without the decorative cover;

[0048] Figure 14 This is a cross-sectional view of the island-style range hood provided in Embodiment 1 of the present invention without the decorative cover;

[0049] Figure 15 This is a partial structural schematic diagram of the decorative cover provided in Embodiment 1 of the present invention;

[0050] Figure 16 yes Figure 15A magnified view of a section at point C;

[0051] Figure 17 yes Figure 15 A magnified view of a section at point D;

[0052] Figure 18 This is a cross-sectional view of the island-style range hood provided in Embodiment 2 of the present invention when the two flaps are in the first position;

[0053] Figure 19 This is a schematic diagram of the linkage assembly when the flap is in the second position, as provided in Embodiment 2 of the present invention;

[0054] Figure 20 This is a first structural schematic diagram of the flip-board driving assembly provided in Embodiment 2 of the present invention;

[0055] Figure 21 This is a schematic diagram of the structure of the smoke collection hood provided in Embodiment 2 of the present invention;

[0056] Figure 22 This is a schematic diagram of the second structure of the flip-board driving assembly provided in Embodiment 2 of the present invention;

[0057] Figure 23 This is a cross-sectional view of the smoke collection hood provided in Embodiment 2 of the present invention.

[0058] In the picture:

[0059] 1. Main housing mechanism; 11. Fan assembly; 111. Smoke exhaust port; 12. Duct assembly; 121. First noise reduction box; 1211. First housing; 1212. Noise reduction cotton; 122. Transfer channel; 1221. Telescopic pipe; 1222. Transfer valve; 123. Second noise reduction box; 1231. Second housing; 1232. Noise reduction mesh; 124. Connecting beam; 1241. First beam; 1242. Second beam; 2. Smoke hood; 21. Hood body; 211. Inner hood body; 2111. Inner hood reinforcing frame; 21111. First crossbeam; 2 1112. Second crossbeam; 2112. Sub-cover; 212. Filter screen; 213. Outer cover; 2131. Outer cover main body; 2132. Outer cover top cover; 214. Smoke collection chamber; 215. Elastic seal; 2151. First cut; 2152. Second cut; 216. Second mounting hole; 217. Shell main body; 218. Shell bottom plate; 2181. First inclined plate; 2182. Second inclined plate; 219. Limiting protrusion; 22. Control panel; 23. Flip plate; 231. Flip plate bracket; 2311. Flip edge; 232. Flip plate Main body; 233, Rotating connector; 2331, First plate; 23311, Strip hole; 2332, Second plate; 23321, First mounting hole; 2333, Third plate; 24, Flip-plate drive assembly; 241, Flipping drive component; 242, Driving rod; 243, Driven rod assembly; 2431, First transmission rod; 2432, Second transmission rod; 2433, Third transmission rod; 244, Bracket; 2441, Base; 2442, Vertical plate; 24421, Guide part; 245, Linear drive component; 246, Linkage assembly; 24 61. First connecting rod; 2462. Second connecting rod; 24621. Third rod section; 24622. Fourth rod section; 24623. Hinge hole; 2463. Third connecting rod; 25. Decorative sleeve; 26. Oil cup; 3. Lifting mechanism; 31. Lifting drive assembly; 32. Cable guard box; 33. Guide rail assembly; 4. Decorative cover; 41. Splicing piece; 411. Body; 4111. Notch; 412. Connecting part; 4121. First connecting plate; 4122. Second connecting plate; 42. Fixing piece; 421. End; 422. Clamping arm. Detailed Implementation

[0060] Embodiments of the present invention 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 components or components having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0061] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0062] In the description of this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0063] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0064] Example 1

[0065] This embodiment provides an island-style range hood, which is suspended above a bar counter or island cabinet to extract cooking fumes from above the bar counter or island cabinet, meeting the usage needs of an open kitchen.

[0066] like Figure 1 As shown, the island-style range hood includes a main housing mechanism 1 and a smoke collection hood 2. The smoke collection hood 2 is located below the main housing mechanism 1. The main housing mechanism 1 has a smoke exhaust channel and a smoke exhaust port 111 connected to the smoke exhaust channel. The smoke collection hood 2 has a smoke inlet, and its interior is connected to the smoke exhaust channel. Smoke enters the smoke collection hood 2 through the smoke inlet, then enters the main housing mechanism 1, and is exhausted through the smoke exhaust channel and the smoke exhaust port 111. During installation, the main housing mechanism 1 is connected to the indoor ceiling to suspend the island-style range hood above the bar counter or island cabinet.

[0067] Optionally, at least part of the main housing mechanism 1 can be installed in the indoor ceiling to reduce the exposed size of the island-style range hood, reduce the oppressive feeling caused by the island-style range hood being suspended above the bar or island counter, and improve the appearance.

[0068] To avoid the island-style range hood taking up too much space above the bar or island when not in use, such as Figure 2As shown, the island-style range hood also includes a lifting mechanism 3. The lifting mechanism 3 connects the main housing mechanism 1 and the smoke collection hood 2. The lifting mechanism 3 drives the smoke collection hood 2 to rise and fall, lowering its height when in use to facilitate the extraction of fumes from above the bar counter or island cabinet. When the user is not using the island-style range hood, the lifting mechanism 3 drives the smoke collection hood 2 to rise, reducing the space occupied by the range hood and avoiding interference with the user's use of the bar counter or island cabinet. The lifting mechanism 3 also enhances the technological feel of the island-style range hood, providing users with a brand-new experience.

[0069] In this embodiment, the smoke hood 2 further includes a flap drive assembly 24 and two flaps 23. Flips 23 are rotatably connected to opposite sides of the hood 21 along the first horizontal direction. The flap drive assembly 24 is connected to the flaps 23 and is used to drive the flaps 23 to switch between a first position and a second position. When the flaps 23 are in the first position, the two flaps 23 together cover the smoke inlet at the bottom of the hood 21 to prevent the smoke inlet from being exposed, which improves aesthetics. When the flaps 23 are in the second position, such as... Figure 3 As shown, the flap 23 flips outward relative to the cover 21, which not only opens the smoke inlet to achieve the suction of oil fumes, but also the two flaps 23 can cooperate with the cover 21 to form a smoke-gathering area. The flaps 23 can block the oil fumes and reduce the escape of oil fumes, thereby improving the suction effect of oil fumes.

[0070] In some embodiments, when the flaps 23 on both sides are in the first position, the two flaps 23 are coplanar, so that the two flaps 23 are spliced ​​together to form a plate-like structure, which blocks the smoke inlet of the hood 21. Exemplarily, the flaps 23 extend horizontally when they are in the first position. When the flaps 23 block the smoke inlet, they serve as the bottom appearance surface of the smoke collection hood 2, and the horizontal extension of the flaps 23 is more aesthetically pleasing.

[0071] In some other embodiments, the two flaps 23 may not be coplanar when they are in the first position, and each flap 23 may be at a certain angle to the horizontal plane, as long as it can block the smoke inlet.

[0072] To enable the flap 23 to switch between a first position and a second position, the flap driving assembly 24 includes a flipping drive component 241 and a connecting rod structure. The output end of the flipping drive component 241 is connected to the connecting rod structure, which is connected to the flap 23. The flipping drive component 241 drives the connecting rod structure to move, thereby achieving the flipping of the flap 23. In this embodiment, a connecting rod structure is used to achieve the flipping of the flap 23. The connecting rod structure is foldable, occupies less space, and can reduce the impact on the overall size of the machine and the size of the smoke collection chamber, which is beneficial to ensuring the smoke extraction effect.

[0073] Optionally, each rod in the linkage structure can be parallel to a vertical plane parallel to the first horizontal direction. On the one hand, this can reduce the size of the linkage structure along the first horizontal direction while ensuring the connection between the linkage structure and the flaps 23 on both sides, thus avoiding increasing the size of the smoke hood 2 along the first horizontal direction. On the other hand, the parallel extension directions of each rod are beneficial to reducing the overall space occupied by the linkage structure, thereby reducing the impact on the overall size of the machine and the size of the smoke collection chamber. In addition, the area of ​​each rod directly facing the oil fumes is small, which can reduce the adhesion of oil fumes.

[0074] In this embodiment, the flap drive assembly 24 is located at one end of the cover 21 along the second horizontal direction and between the two flaps 23. The second horizontal direction is perpendicular to the first horizontal direction. This arrangement positions the flap drive assembly 24 at one end of the cover 21, avoiding occupying the space in the middle of the cover 21 used for fume transmission, thus preventing any impact on the flow of fumes. Simultaneously, it reduces contact between fumes and the flap drive assembly 24, preventing oil stains on the flap drive assembly 24 from affecting the normal rotation of the flaps 23.

[0075] In addition, the flap drive assembly 24 can be connected to the two flaps 23 on both sides to drive the two flaps 23, which helps to simplify the structure.

[0076] For example, the first horizontal direction is the front-to-back direction, and the second horizontal direction is the left-to-right direction. The flap drive assembly 24 is located at the left or right end of the cover 21. Each rod of the linkage structure in the flap drive assembly 24 extends in the front-to-back direction to reduce the length of each rod and the size occupied by the linkage structure in the left-to-right direction.

[0077] To reduce contact between oil fumes and the flap drive assembly 24, such as Figure 2 As shown, a sandwich layer is formed inside the cover 21. The sandwich layer is not connected to the smoke collection chamber. At least part of the flap drive assembly 24 is located inside the sandwich layer. The output end of the flap drive assembly 24 can extend out of the sandwich layer to connect with the flap 23. By setting the sandwich layer, the oil fumes can be separated from the flap drive assembly 24, preventing oil stains on the flap drive assembly 24 from affecting the drive of the flap 23.

[0078] Combination Figure 2 and Figure 4As shown, the cover 21 includes an inner cover 211, an outer cover 213, and a filter plate 212. The top surface of the outer cover 213 has a first connecting hole 21321, and the bottom end of the outer cover 213 is connected to the filter plate 212, which has a smoke inlet. The inner cover 211 is disposed inside the outer cover 213, forming a sandwich structure between the outer cover 213 and the inner cover 211. The inner cover 211 and the filter plate 212 form a smoke collection chamber. The top surface of the inner cover 211 has a second connecting hole corresponding to and connected to the first connecting hole 21321. The main housing mechanism 1 communicates with the smoke collection chamber sequentially through the first connecting hole 21321 and the second connecting hole. This method of forming a sandwich structure is simple and convenient for installation.

[0079] like Figure 4 As shown, the outer cover 213 includes a detachable outer cover body 2131 and an outer cover top cover 2132. Both the upper and lower ends of the outer cover body 2131 are open structures. The filter screen 212 is connected to the bottom end of the outer cover body 2131 to close the bottom opening of the outer cover body 2131. The outer cover top cover 2132 closes the upper opening of the outer cover body 2131 and is provided with a first connecting hole 21321. Dividing the outer cover 2133 into the outer cover body 2131 and the outer cover top cover 2132 allows the internal space to be exposed by disassembling the outer cover top cover 2132, facilitating the assembly of the inner cover body 211 and the flip-plate drive assembly 24, making operation more convenient.

[0080] Optionally, the outer cover 2132 and the outer cover body 2131 can be fixed by at least one of the following methods: screw fixing, snap-fit ​​fixing, and magnetic fixing, to ensure the fixing effect and facilitate disassembly and assembly.

[0081] Since stoves typically have two burners, in order to improve the extraction of fumes from both burners, such as... Figure 4 As shown, the inner cover 211 includes an inner cover reinforcing frame 2111 and two sub-covers 2112. The bottom end of the sub-covers 2112 is open. The sub-covers 2112 are fastened to the filter screen plate 212. The sub-covers 2112 and the filter screen plate 212 form a smoke collection chamber. The two sub-covers 2112 are spaced apart and connected by the inner cover reinforcing frame 2111 to improve the positional accuracy of the two sub-covers 2112 and improve the modularity. After the inner cover reinforcing frame 2111 is connected to the sub-covers 2112, it cooperates with the sub-covers 2112 to form a second connecting hole between two adjacent sub-covers 2112. The second connecting hole corresponds to the first connecting hole 21321 to ensure that the smoke collection chamber can communicate with the main box mechanism 1. The inner cover reinforcing frame 2111 is connected to the outer cover top cover 2132 to improve the overall strength of the inner cover 211.

[0082] Specifically, the inner cover reinforcement frame 2111 includes two first crossbeams 21111 and two second crossbeams 21112 arranged opposite to each other. The first crossbeams 21111 extend along a second horizontal direction, and the second crossbeams 21112 extend along a first horizontal direction. The two second crossbeams 21112 are located between the two first crossbeams 21111 and between the two sub-covers 2112. The two first crossbeams 21111 and the two second crossbeams 21112 form a second connecting hole. The structure formed by the cooperation of two first crossbeams 21111 and two second crossbeams 21112 has high strength. The two first crossbeams 21111 are located on the outer side of the two sub-covers 2112 in the front-back direction, which can improve the positioning and fixing effect of the sub-covers 2112. The two second crossbeams 21112 are located between the two sub-covers 2112 and are spaced apart in the left-right direction, which can realize the left-right limiting of the two sub-covers 2112. The two second crossbeams 21112 are connected to the main box mechanism 1, which helps to improve the connection strength.

[0083] To ensure that the smoke collection chambers formed by the two sub-hoods 2112 and the filter screen 212 can communicate with the main housing mechanism 1, the top surface of the filter screen 212 is provided with a recessed area corresponding to each sub-hood 2112. Each sub-hood 2112 and the recessed area form a smoke collection chamber, and the end of each recessed area near the other recessed area is spaced apart from the corresponding sub-hood 2112 to form a gap. This gap connects the smoke collection chamber with the second connecting hole, so that each smoke collection chamber can communicate with the main housing mechanism 1.

[0084] like Figure 5 As shown, the flip-plate drive assembly 24 includes a flip-plate drive component 241 and a linkage structure. The linkage structure includes a drive rod 242 and a driven rod assembly 243. The flip-plate drive component 241 is connected to the cover 21, and the output shaft of the flip-plate drive component 241 is connected to the drive rod 242 to drive the drive rod 242 to rotate. The driven rod assemblies 243 are respectively connected to both ends of the drive rod 242. The driven rod assemblies 243 extend outside the cover 21 to connect with the flip plates 23 on the corresponding sides. When the flip-plate drive component 241 is working, it drives the drive rod 242 to rotate, thereby driving the driven rod assemblies 243 on both sides to move. The driven rod assemblies 243 drive the corresponding flip plates 23 to rotate, thereby switching between a first position and a second position.

[0085] Alternatively, the flipping drive 241 can be a rotary motor, which has a simple structure and low cost.

[0086] like Figure 6As shown, the driven rod assembly 243 includes a first transmission rod 2431, a second transmission rod 2432, and a third transmission rod 2433, which are rotatably connected in sequence. The second transmission rod 2432 is rotatably connected to the cover 21, meaning its rotation center is fixed. One end of the first transmission rod 2431 is rotatably connected to the driving rod 242, and the other end of the first transmission rod 2431 is rotatably connected to one end of the second transmission rod 2432. The other end of the second transmission rod 2432 is rotatably connected to one end of the third transmission rod 2433, and the other end of the third transmission rod 2433 is rotatably connected to the flap 23. When the driving rod 242 rotates, it drives the second transmission rod 2432 to rotate relative to the cover 21 via the first transmission rod 2431, which in turn drives the flap 23 to rotate via the third transmission rod 2433.

[0087] The flap drive assembly 24 drives the flap 23 to rotate through the active rod 242 and the driven rod group 243. Both the active rod 242 and the driven rod group 243 are flat rod-shaped structures, which occupy little space and are conducive to controlling the overall size of the machine. The active rod 242 can be connected to the driven rod groups 243 on both sides respectively, and can drive the two flaps 23 on both sides to rotate through the same power source, which helps to reduce costs.

[0088] It should be noted that the driving rod 242, the first transmission rod 2431, the second transmission rod 2432 and the third transmission rod 2433 are all located in the vertical plane, and the rotation axis of each rod is parallel to the second horizontal direction, so as to reduce the space occupied by the driving rod 242 and the driven rod group 243.

[0089] Optionally, both the first transmission rod 2431 and the third transmission rod 2433 are straight rods. The second transmission rod 2432 includes a first rod portion and a second rod portion, which are arranged at an angle. The first rod portion is rotatably connected to the first transmission rod 2431, and the connection point between the first rod portion and the second rod portion is rotatably connected to the cover 21. The second rod portion is rotatably connected to the third transmission rod 2433, and the angle between the first rod portion and the second rod portion is directed towards the driving rod 242. The second transmission rod 2432 is approximately L-shaped, which can increase the folding degree of the driven rod assembly 243 and is beneficial to increasing the flipping angle of the flap 23.

[0090] When the flap 23 is in the second position, such as Figure 6 As shown, the two first transmission rods 2431 are arranged roughly parallel to each other, and the second transmission rods 2432 and the third transmission rods 2433 on both sides are arranged roughly symmetrically. The flap 23 flips outward to open the smoke inlet. When it is necessary to drive the flap 23 to block the smoke inlet, as... Figure 7 As shown, the active rod 242 rotates in the direction indicated by the arrow, causing the first rod portion of the second transmission rod 2432 on both sides to rotate outward of the cover 21, while the second rod portion rotates inward of the cover 21, so as to drive the flap 23 to retract to the first position.

[0091] It should be noted here that, Figure 7 The solid line and the dashed line represent the active rod 242, the first transmission rod 2431 and the second transmission rod 2432 at two positions, respectively. The direction of rotation from the position shown by the solid line to the position shown by the dashed line is specifically the direction in which the flap 23 rotates from the second position to the first position.

[0092] To improve the stability of the movement of the flap 23, the cover 21 is provided with an active rod 242 and a driven rod group 243 at both ends along the second horizontal direction. One of the active rods 242 is connected to the flipping drive member 241 so that the two flaps 23 can be driven by one flipping drive member 241, thus saving costs. The stability of the movement of the flap 23 is improved by providing an active rod 242 and a driven rod group 243 at both ends along the second horizontal direction.

[0093] In other embodiments, the cover 21 may be provided with a flipping drive 241 at both ends along the second horizontal direction.

[0094] Understandably, in actual use, users will move around the sides of the bar counter or island cabinet. To facilitate user operation, in some embodiments, the smoke hood 2 includes a hood body 21 and a control panel 22. The bottom surface of the hood body 21 has a smoke inlet, and the control panel 22 is located on at least two outer walls of the hood body 21. By providing the control panel 22 on at least two outer walls of the hood body 21, users can operate the control panel 22 from at least two sides of the island-style range hood to control its start / stop and operating mode, making it more convenient and flexible for users to move around the bar counter or island cabinet.

[0095] Since users tend to congregate on the opposite sides of the bar or island cabinet (hereinafter referred to as the inner or outer side), in some embodiments, control panels 22 are provided on at least the opposite sides of the cover 21 so that users can easily touch the control panels 22 to operate the island range hood regardless of whether they are on the inner or outer side.

[0096] For ease of explanation, such as Figure 1 and Figure 2 As shown, the cover 21 has a rectangular structure. The length of the cover 21 extends along the left-right direction, and the width of the cover 21 extends along the front-back direction. Control panels 22 are provided on both the front and rear outer walls of the cover 21. When assembling an island-style range hood, the length direction of the cover 21 is the same as the length direction of the bar counter (or island cabinet). On the one hand, the cover 21 can cover as much of the area along the length direction of the bar counter (or island cabinet) as possible to better extract the fumes above the bar counter (or island cabinet) and improve the user experience. On the other hand, when the user moves inside and outside the bar counter (or island cabinet), the control panels 22 are provided on the corresponding front and rear sides of the cover 21 for convenient operation.

[0097] In some other embodiments, the cover 21 may be provided with control panel 22 on at least three sides. For example, in addition to the front and rear sides of the cover 21, at least one of the left and right sides of the cover 21 may be provided with control panel 22 to facilitate user operation.

[0098] Optionally, all control panels 22 are electrically connected to synchronize information. During the operation of the island-style range hood, its operating parameters and modes can be displayed on any control panel 22, allowing users to easily access the operating status of the range hood from different locations.

[0099] Optionally, the control panel 22 can completely cover one side surface of the housing 21 where the control panel 22 is located to achieve a large-screen display, which not only helps to improve the consistency of appearance, but also has a larger display area and improves the user experience.

[0100] In this embodiment, control panels 22 are provided on both outer walls of the cover 21 that are arranged opposite each other along the first horizontal direction. That is, the control panel 22 is provided on the side of the cover 21 connected to the flap 23. The control panel 22 is located in a position where the user frequently stays. By providing the flap 23 on the side where the control panel 22 is located, when the flap 23 is rotated to the second position, the flap 23 can block the oil fumes escaping towards the user, preventing the user from being affected by the oil fumes and improving the user experience.

[0101] For example, control panels 22 are provided on both the front and rear sides of the cover 21. Correspondingly, flaps 23 are rotatably connected to both the front and rear sides of the cover 21. The flap 23 located on the front side can rotate forward to move to the second position to block the oil fumes from escaping forward; the flap 23 located on the rear side can rotate backward to move to the second position to block the oil fumes from escaping backward.

[0102] To improve smoke collection, such as Figure 8 As shown, the bottom surface of the cover 21 is recessed to form a smoke-collecting cavity 214, and the smoke inlet is located on the top surface of the smoke-collecting cavity 214. Specifically, the filter screen 212 and the outer cover 213 form the smoke-collecting cavity 214. By setting the smoke-collecting cavity 214, the smoke-collecting depth when the flap 23 is opened to the second position can be increased, which is beneficial to improving the smoke-collecting effect.

[0103] like Figure 9As shown, the driven rod assembly 243 passes through the filter screen 212 to connect with the flap 23. To prevent oil fumes from overflowing, in some embodiments, the filter screen 212 is provided with a clearance hole, and an elastic seal 215 is provided in the clearance hole. The elastic seal 215 is provided with a first cut 2151, and the driven rod assembly 243 passes through the first cut 2151. The elastic seal 215 is made of elastic material. Due to the elastic properties of the elastic seal 215 itself, the two sidewalls of the first cut 2151 fit together, which can achieve a sealing fit with the driven rod assembly 243 and reduce the overflow of oil fumes.

[0104] Optionally, the elastic seal 215 is further provided with a plurality of second cuts 2152, which are arranged at an angle to and connected with the first cut 2151. By providing the second cuts 2152, the first cut 2151 can better adapt to the movement of the driven rod assembly 243 and deform adaptively, reducing the resistance of the driven rod assembly 243 in the first cut 2151, so as to make the movement of the flap 23 smoother.

[0105] Optionally, the first cut 2151 extends along a first horizontal direction to avoid interfering with the movement of the driven rod assembly 243.

[0106] Optionally, the inner wall of the smoke collection chamber 214 is provided with a limiting protrusion 219, which can abut against the flap 23 so that the flap 23 stays in the first position and plays a limiting role for the flap 23.

[0107] In this embodiment, when the flap 23 is in the second position, the top of the flap 23 is located inside the smoke collection chamber 214. This arrangement allows the fumes to directly enter the smoke collection chamber 214 under the guidance of the flap 23, and then enter the inner cavity of the smoke hood 2 through the smoke inlet. This provides good airflow guidance and prevents the fumes from overflowing from the gap between the flap 23 and the hood 21, thus improving the smoke extraction effect.

[0108] Specifically, the flap 23 is rotatably connected to the inner wall of the smoke collection chamber 214 to ensure that when the flap 23 is in the second position, the top of the flap 23 is located inside the smoke collection chamber 214.

[0109] To facilitate the collection of filtered grease, the fume hood 2 also includes an oil cup 26, which is suspended inside the fume collection chamber 214. When the flaps 23 are in the first position, the two flaps 23 cover the bottom opening of the fume collection chamber 214, and the oil cup 26 is located above the flaps. This arrangement allows the oil cup 26 to be hidden when the island-style range hood is not in operation, which helps to improve the appearance.

[0110] To reduce the height dimension of the smoke collection hood 2, the flap 23 is connected to the inner wall of the smoke collection chamber 214. The flap 23 in the first position is located inside the smoke collection chamber 214 to prevent the flap 23 from protruding from the bottom surface of the hood body 21, thereby reducing the size of the smoke collection hood 2 when it is not in operation and making the structure more compact.

[0111] Specifically, when the flap 23 is in the first position, the plate-like structure formed by splicing the two flaps 23 is adapted to the bottom opening of the smoke collection chamber 214, and the bottom surface of the flap 23 is flush with the bottom surface of the cover 21 to further improve the appearance.

[0112] It should be noted here that the matching of the plate structure with the bottom opening of the smoke collection chamber 214 specifically means that the shape of the plate structure is the same as the shape of the bottom opening of the smoke collection chamber 214, and the size of the plate structure is slightly smaller than the size of the bottom opening of the smoke collection chamber 214, so as to reduce the gap between the plate structure and the side wall of the opening of the smoke collection chamber 214, which is beneficial to improving the appearance.

[0113] Combination Figure 7 As shown, since the two first transmission rods 2431 are hinged to both ends of the active rod 242 respectively, during the movement of the flap 23, the first transmission rod 2431 connected to the top of the active rod 242 is roughly above the active rod 242, and it drives the second transmission rod 2432 to rotate at a larger angle; the first transmission rod 2431 connected to the bottom of the active rod 242 is roughly below the active rod 242, and it drives the second transmission rod 2432 to rotate at a smaller angle, resulting in asynchronous rotation angles of the two flaps 23. This arrangement allows the size of the plate-like structure formed by the splicing of the two flaps 23 when they are in the first position to be as close as possible to the bottom opening size of the cover 21, making the shielding of the smoke inlet more tight; on this basis, by setting the asynchronous rotation angles of the two flaps 23, it is beneficial to avoid interference between the two flaps 23 during rotation, to achieve avoidance between the two flaps 23 during rotation, and to ensure the smooth opening of the flaps 23.

[0114] In this embodiment, the flap 23 is rotatably connected to the cover 21 via a rotating shaft. The rotating shaft is connected to both the flap 23 and the cover 21, and is rotatably connected to one of the flap 23 and the cover 21, while being fixedly connected to the other, thus achieving a rotatable connection between the flap 23 and the cover 21. In other embodiments, the flap 23 may also be rotatably connected to the cover 21 via a hinge.

[0115] To facilitate the rotatable connection between the flap 23 and the cover 21, in some embodiments, such as Figures 10-12As shown, the flap 23 includes a flap bracket 231, a rotating connector 233 and a first fastener. The flap bracket 231 is connected to the rotating connector 233 at both ends. The rotating connector 233 is used to connect the rotating shaft. The distance between the two rotating connectors 233 is adjustable. The first fastener is used to fix the rotating connector 233 to the flap bracket 231.

[0116] When installing the flap 23, first reduce the distance between the two rotating connectors 233 to avoid interference between the rotating connectors 233 and the opening of the smoke collection chamber 214; then, adjust the position of the rotating connectors 233 so that they cooperate with the rotating shaft; finally, fix the rotating connectors 233 and the flap bracket 231 with the first fastener to complete the installation of the flap 23 and the cover 21.

[0117] For example, the two rotating connectors 233 are arranged in the left-right direction, that is, the left and right ends of the flap bracket 231 are connected to the rotating connectors 233.

[0118] like Figure 11 As shown, the rotating connector 233 has a strip-shaped hole 23311 extending along the arrangement direction of the two rotating connectors 233. The flip plate bracket 231 has a fixing hole. The first fastener passes through the strip-shaped hole 23311 and connects to the fixing hole to fix the flip plate bracket 231 and the rotating connector 233. By providing the strip-shaped hole 23311, the fixed position of the rotating connector 233 and the flip plate bracket 231 along the length direction of the strip-shaped hole 23311 can be adjusted. This not only allows the position of the rotating connector 233 to be adjusted according to the disassembly and assembly requirements of the flip plate 23, avoiding interference between the rotating connector 233 and the disassembly and assembly of the flip plate 23, but also accommodates installation errors and improves the fault tolerance rate.

[0119] Optionally, the first fastener can be a screw, which has a simple structure and provides reliable fixation.

[0120] In some embodiments, the rotating connector 233 includes a first plate 2331 and a second plate 2332 that are vertically connected. The first plate 2331 is connected to the flap bracket 231, and the second plate 2332 is stacked on the left and right side walls of the smoke collection chamber 214 for connection with the rotating shaft.

[0121] like Figure 11 As shown, the first plate 2331 is provided with a strip hole 23311, which cooperates with the first fastener; the second plate 2332 is provided with a first mounting hole 23321, which is used to connect with the rotating shaft.

[0122] To facilitate the positioning and fixing of the rotating connector 233 and the flap bracket 231, such as Figure 12As shown, the flap bracket 231 includes a bracket body and a flange 2311 connected to the bracket body. The flange 2311 is connected to the rotating connector 233. By setting the flange 2311, the installation position of the rotating connector 233 can be determined, achieving preliminary positioning and reducing assembly difficulty.

[0123] like Figure 2 As shown, the cover 21 is provided with a second mounting hole 216, and the rotating shaft is connected to the second mounting hole 216.

[0124] Optionally, the rotating connector 233 also includes a third plate 2333 connected to the first plate 2331. When assembling the flap 23, the first plate 2331 and the flange 2311 are stacked, and the third plate 2333 overlaps the top surface of the flange 2311 to limit the position of the rotating connector 233, thereby achieving coarse positioning of the rotating connector 233 and facilitating the cooperation between the second plate 2332 and the rotating shaft.

[0125] The flap 23 also includes a flap body 232, which is connected to the flap bracket 231. The flap body 232 serves to collect smoke and block the smoke inlet. Optionally, the flap body 232 is an exterior component of the island-style range hood and can be made of glass for easy cleaning.

[0126] like Figure 13 As shown, the main housing mechanism 1 includes a fan assembly 11 and a duct assembly 12. The fan assembly 11 is installed in the indoor ceiling and includes a fan housing and a fan installed inside the fan housing. The fan housing has a smoke exhaust port 111 for exhausting smoke. The top end of the duct assembly 12 communicates with the fan assembly 11, and the bottom end of the duct assembly 12 communicates with the smoke collection hood 2. A lifting mechanism 3 is installed inside the duct assembly 12. By separating the fan assembly 11 and the duct assembly 12, the space occupied by the fan in the duct assembly 12 can be reduced. This allows for an increase in the smoke flow area without increasing the radial dimension of the duct assembly 12, thus facilitating smoke exhaust. The fan assembly 11 is installed in the ceiling, not occupying space under the roof, which reduces the space occupied by the island-style range hood indoors, reduces the feeling of oppression for users, and improves the user experience.

[0127] In some embodiments, the fan assembly 11 is fixed to the roof inside the suspended ceiling, which reduces the force exerted by the island-style range hood on the suspended ceiling and helps to improve the stability of the island-style range hood.

[0128] To reduce the noise of the island-style range hood during operation, the duct assembly 12 includes a noise reduction structure. The noise reduction structure can reduce the noise generated when the airflow passes through the duct assembly 12, so as to avoid the island-style range hood being too noisy during operation and affecting the user experience.

[0129] For example, the noise reduction structure includes noise reduction cotton 1212 and noise reduction mesh 1232. With the cooperation of noise reduction cotton 1212 and noise reduction mesh 1232, the noise reduction effect is good and the noise of the island-style range hood can be reduced when it is working.

[0130] In other embodiments, the noise reduction structure may include only noise reduction cotton 1212 or only noise reduction mesh 1232, which can be set according to actual needs.

[0131] It should be noted that the noise reduction network 1232 is a conventional noise reduction structure in this field. The noise reduction network 1232 can adopt any structure and noise reduction principle in the prior art, which will not be elaborated here.

[0132] To improve noise reduction performance, such as Figure 14 As shown, the air duct assembly 12 includes a first noise reduction box 121 and a second noise reduction box 123 that are adjacent to each other. The first noise reduction box 121 is connected to the fan assembly 11, and the second noise reduction box 123 is connected to the smoke hood 2. The airflow entering the air duct assembly 12 through the smoke hood 2 passes through the second noise reduction box 123 and the first noise reduction box 121 in sequence, achieving two levels of noise reduction, resulting in a good noise reduction effect.

[0133] For example, the first noise reduction box 121 includes a first box body 1211 and noise reduction cotton 1212 disposed inside the first box body 1211. The noise reduction cotton 1212 is attached to the circumferential inner wall of the first box body 1211 and the center of the noise reduction cotton 1212 is hollow to facilitate the passage of smoke.

[0134] For example, the second noise reduction box 123 includes a second box body 1231 and a noise reduction net 1232 disposed within the second box body 1231. The noise reduction net 1232 is disposed on at least a portion of the side wall of the second box body 1231 to avoid interfering with the passage of flue gas.

[0135] To accommodate different indoor heights and bar counter heights, the duct assembly 12 also includes a connecting beam 124 and a transfer channel 122. The connecting beam 124 connects the first noise reduction box 121 and the second noise reduction box 123; the transfer channel 122 connects the first noise reduction box 121 and the second noise reduction box 123. The length of the connecting beam 124 is adjustable, and at least part of the transfer channel 122 is extendable. This arrangement allows for adjustment of the distance between the first noise reduction box 121 and the second noise reduction box 123 according to the user's indoor height, ensuring that the minimum distance between the fume hood 2 and the bar counter (or island cabinet) is within a certain range, thereby guaranteeing effective fume extraction. The extendable transfer channel 122 allows for adaptive length adjustment based on the distance between the first noise reduction box 121 and the second noise reduction box 123, thus connecting the two boxes.

[0136] In this embodiment, the connecting beam 124 includes a first beam 1241 and a second beam 1242. The first noise reduction box 121 and the second noise reduction box 123 are both connected to the first beam 1241. The first beam 1241 extends vertically. The second beam 1242 connects the two first beams 1241, and the connection position with the first beam 1241 can be adjusted along the length direction of the second beam 1242.

[0137] For example, the first beam 1241 and the second beam 1242 are connected by a second fastener. The second beam 1242 is provided with a first connecting hole, and the first beam 1241 is provided with a second connecting hole. At least one of the first connecting holes and the second connecting hole is provided in multiples, and they are spaced apart along the length direction of the second beam 1242. The second fastener can be selectively connected to the first connecting hole and the second connecting hole at appropriate positions to adjust the total length of the connecting beam 124, thereby adjusting the distance between the first noise reduction box 121 and the second noise reduction box 123.

[0138] In some other embodiments, the first beam 1241 and the second beam 1242 may be slidably connected, and a second fastener passes through one of the first beam 1241 and the second beam 1242 and abuts against the other to secure the first beam 1241 and the second beam 1242.

[0139] To improve the strength and stability of the air duct assembly 12, multiple connecting beams 124 are provided. These multiple connecting beams 124 are spaced apart circumferentially along the first noise reduction box 121 and the second noise reduction box 123 to improve the fixing effect of the first noise reduction box 121 and the second noise reduction box 123.

[0140] For example, both the first noise reduction box 121 and the second noise reduction box 123 are rectangular boxes, and each outer corner of the rectangular box is provided with a connecting beam 124, which not only improves the connection effect, but also helps to improve the strength of the box.

[0141] In order to make the length of the transfer channel 122 adjustable, the transfer channel 122 includes a telescopic tube 1221 and a transfer valve 1222. The transfer valve 1222 is sealed to the second noise reduction box 123. One end of the telescopic tube 1221 is connected to the transfer valve 1222, and the other end is connected to the first noise reduction box 121.

[0142] For example, the telescopic tube 1221 can be a corrugated pipe to adaptively adjust its length according to the distance between the first noise reduction box 121 and the second noise reduction box 123. In other embodiments, the telescopic tube 1221 can also be replaced by a plurality of nested tubes instead of a corrugated pipe.

[0143] In this embodiment, the lifting mechanism 3 is set inside the second noise reduction box 123, which facilitates the connection between the lifting mechanism 3 and the smoke hood 2. The second noise reduction box 123 protects and shields the lifting mechanism 3, which helps to improve the appearance.

[0144] Specifically, the lifting mechanism 3 includes a lifting drive assembly 31 and a guide rail assembly 33. The lifting drive assembly 31 is fixed inside the second noise reduction box 123, and its output end is connected to the smoke hood 2. The guide rail assembly 33 includes a fixed guide rail and a sliding member that are slidably engaged. The fixed guide rail is connected to the second noise reduction box 123, and the sliding member is connected to the smoke hood 2. When the lifting drive assembly 31 drives the smoke hood 2 to rise or fall, the sliding member and the fixed guide rail work together to guide the smoke hood 2, improving the stability of its movement.

[0145] In some embodiments, the lifting drive assembly 31 can be an electric actuator; in other embodiments, the lifting drive assembly 31 can be a cylinder, a hydraulic cylinder, a lead screw and nut drive assembly, a gear and rack drive assembly, or other drive structures capable of linear motion.

[0146] To improve the stability of the smoke hood 2 during lifting, fixed guide rails are provided at each corner of the second noise reduction box 123 to improve the guiding effect on the smoke hood 2 and also to improve the overall strength of the machine.

[0147] In this embodiment, the fixed guide rail includes a first guide rail and a second guide rail arranged at an angle. The first guide rail and the second guide rail are connected, and they are respectively connected to the adjacent side walls of the second housing 1231, which helps to improve the fixing effect and the strength of the fixed guide rail. The sliding member slides with the first guide rail and the second guide rail respectively to improve the stability of the sliding engagement.

[0148] The second housing 1231 is a rectangular housing. Noise-reducing mesh 1232 is provided on the left, right, and rear sides of the second housing 1231. Guide rail assemblies 33 are provided at the four inner corners of the rectangular housing. The lifting drive assembly 31 is located on the front side of the second housing 1231. This arrangement allows the lifting drive assembly 31 to be as close as possible to the front side of the second housing 1231 to avoid affecting the flow of flue gas. It also reduces the adhesion of oil stains on the lifting drive assembly 31 and avoids interference with the noise-reducing mesh 1232.

[0149] Optionally, a reinforcing structure is provided inside the second noise reduction box 123, and the lifting drive assembly 31 is connected to the reinforcing structure to ensure the connection effect of the lifting drive assembly 31. For example, the reinforcing structure can be a reinforcing rib or a reinforcing beam.

[0150] To facilitate maintenance of the lifting drive assembly 31, the side panel of the second housing 1231 near the lifting drive assembly 31 can be detached and connected so that the lifting drive assembly 31 can be exposed by removing the side panel for easy maintenance.

[0151] For example, the front side panel of the second housing 1231 is detachably connected to the left and right side panels, and the reinforcing structure is connected to the left and right side walls of the second housing 1231 and close to the front. The lifting drive assembly 31 is connected to the reinforcing structure. When the front side panel is removed, the lifting drive assembly 31 can be exposed for maintenance.

[0152] Optionally, the front side panel is connected to the left and right side panels by screws for easy disassembly and assembly.

[0153] In some embodiments, the lifting mechanism 3 further includes a cable guard box 32, which is connected to the output end of the lifting drive assembly 31. The cable guard box 32 is connected to the smoke hood 2 and / or the sliding member so that the cable guard box 32 rises and falls together with the smoke hood 2.

[0154] Understandably, the smoke hood 2 is equipped with a main control board, which is electrically connected to the control panel 22 and the lifting drive assembly 31 to control the raising and lowering of the smoke hood 2 according to the user's operating instructions. Since the smoke hood 2 will rise and fall, the distance between the main control board and the lifting drive assembly 31 will change accordingly. Therefore, the wiring harness connecting the main control board and the lifting drive assembly 31 is relatively long, and a certain length needs to be reserved to ensure that the smoke hood 2 can still maintain connection between the main control board and the lifting drive assembly 31 during descent.

[0155] To avoid tangling and other issues caused by redundant wire harnesses, a wire protection box 32 is installed to store the wire harnesses. The wire protection box 32 moves with the output end of the lifting drive component 31, ensuring that the wire harnesses near the main control board are all located in the wire protection box 32, avoiding the influence of airflow and fumes, and ensuring the electrical connection effect.

[0156] To improve the appearance and prevent the escape of fumes, the fume hood 2 also includes a decorative sleeve 25. The decorative sleeve 25 is connected to the hood body 21 and has a connecting opening around the top surface of the hood body 21 for connecting to the ventilation duct assembly 12. The decorative sleeve 25 and the ventilation duct assembly 12 are slidably and nested together. This arrangement ensures that when the hood body 21 descends relative to the ventilation duct assembly 12, the decorative sleeve 25 and the ventilation duct assembly 12 remain nested together, preventing the fume hood 2 from detaching from the ventilation duct assembly 12 and causing fumes to escape.

[0157] In this embodiment, the decorative sleeve 25 is fitted outside the air duct assembly 12 to prevent the decorative sleeve 25 from affecting the internal structure of the air duct assembly 12. As an appearance component, the decorative sleeve 25 descends with the cover 21, which can make the part close to the user more aesthetically pleasing and improve the user experience.

[0158] To shield the connecting beam 124 and the two noise reduction boxes, such as Figure 1 and Figure 15As shown, the island-style range hood also includes a decorative cover 4, which is fitted over the duct assembly 12, with its top end connected to the fan assembly 11. When the smoke collection hood 2 is raised to its highest position, the bottom end of the decorative cover 4 abuts against or is separated from the smoke collection hood 2 by a small gap. The decorative cover 4 enhances the overall appearance of the island-style range hood, making it more aesthetically pleasing.

[0159] Understandably, the combination of the decorative cover 4 and the decorative sleeve 25 can always cover the air duct assembly 12 during the raising and lowering of the smoke hood 2, thus preventing the air duct assembly 12 from being exposed and improving the appearance.

[0160] In some other embodiments, the bottom end of the decorative cover 4 is connected to the smoke collection hood 2. The decorative cover 4 rises and falls with the smoke collection hood 2, which can always ensure the consistency of the appearance of the components above the smoke collection hood 2, which is beneficial to improving the appearance.

[0161] To facilitate the removal and installation of the decorative cover 4 for maintenance of the air duct assembly 12 or the lifting mechanism 3, in some embodiments, such as Figure 15 As shown, the decorative cover 4 includes at least two splicing pieces 41, and adjacent splicing pieces 41 can be detachably connected. The decorative cover 4 is formed by splicing, which facilitates disassembly for maintenance of the air duct assembly 12 or the lifting mechanism 3.

[0162] To improve the appearance, two adjacent splicing pieces 41 can be detachably connected to the inside of the decorative cover 4 to avoid exposing the connection structure and to ensure the consistency of the appearance of the decorative cover 4.

[0163] In this embodiment, the decorative cover 4 includes two splicing parts 41. The horizontal cross-sectional shape of each splicing part 41 is U-shaped. The two splicing parts 41 form two splicing lines, which are connected at the splicing lines to block the outer peripheral surface of the air duct assembly 12.

[0164] In some other embodiments, the number of splicing pieces 41 and the shape of each splicing piece 41 can be set according to actual needs.

[0165] like Figure 16 As shown, the splicing component 41 includes a body 411 and a connecting portion 412 protruding inward from the edge of the body 411; as Figure 17 As shown, the decorative cover 4 also includes a fastener 42, which is used to fix the connecting part 412 of two adjacent splicing pieces 41, so as to fix the two adjacent splicing pieces 41.

[0166] In this embodiment, the connecting part 412 includes a first connecting plate 4121 and a second connecting plate 4122 that are vertically connected. The first connecting plate 4121 is connected to the body 411. The first connecting plates 4121 in two adjacent splicing parts 41 are fitted together. The fixing member 42 is provided with a clamping groove, which is sleeved on the two first connecting plates 4121 and clamps the two first connecting plates 4121. At least part of the fixing member 42 is located between the second connecting plate 4122 and the body 411. The position of the fixing member 42 is restricted by the second connecting plate 4122 and the body 411, providing positioning for the fixing member 42 and preventing the fixing member 42 from shaking.

[0167] To facilitate the fit between the fastener 42 and the connecting part 412, such as Figure 17 As shown, the fixing member 42 includes an end portion 421 and two clamping arms 422 connected to the end portion 421. The two clamping arms 422 are spaced apart, forming a clamping groove between them. When the fixing member 42 connects two adjacent connecting portions 412, the two first connecting plates 4121 are close together and clamped by the two clamping arms 422. One end of the first connecting plate 4121 abuts against the end portion 421 to limit the size of the first connecting plate 4121 extending into the clamping groove.

[0168] Optionally, the distance between the two clamping arms 422 can be less than or cover the sum of the thicknesses of the two first connecting plates 4121 in order to provide clamping preload and improve the clamping and fixing effect.

[0169] Optionally, the main body 411 is provided with a notch 4111. After the two splicing parts 41 are spliced ​​together, the two notches 4111 form a positioning groove, and part of the end 421 is located in the positioning groove to improve the fixing effect between the fixing part 42 and the splicing part 41.

[0170] In some other embodiments, the fastener 42 may not be provided. Instead, the connecting parts 412 of two adjacent splicing parts 41 may be directly detachably connected, for example, by snap-fit ​​or plug-in, to facilitate disassembly.

[0171] In some embodiments, the decorative cover 4 is fixed to the fan assembly 11 or the smoke collection hood 2 by screws or by snap-fit.

[0172] In some embodiments, the decorative cover 4 is provided with decorative light strips at the splicing points of two adjacent splicing parts 41. The decorative light strips can not only decorate the splicing gaps, but also enhance the technological feel and aesthetics of the whole machine through lighting, which is conducive to improving the user experience.

[0173] Example 2

[0174] This embodiment provides an island-style range hood, which differs from Embodiment 1 in that it has a flap drive assembly 24.

[0175] like Figure 18 and Figure 19 As shown, in this embodiment, the flap drive assembly 24 is located in the middle of the smoke hood 2 along the second horizontal direction, and flaps 23 are respectively connected to both sides of the flap drive assembly 24 along the first horizontal direction. This arrangement connects the flap drive assembly 24 and the flaps 23 along the middle of the second horizontal direction, which is beneficial to the uniform force on the flaps 23, thereby improving the stability of the flaps 23 during movement. It is not necessary to set multiple flap drive assemblies 24, only one power source is needed. It is not necessary to set drive structures at both ends of the length direction of the flaps 23, and the drive structure does not need to occupy a large space along the second horizontal direction, which helps to reduce the number of parts, reduce the space occupied, reduce the size of the smoke hood 2, and reduce costs. Moreover, the flap drive assembly 24 can utilize the space in the first connecting hole, the second connecting hole, or even the main box mechanism 1, without affecting the size of the smoke hood 2, providing more ample installation space and less structural restriction on the flap drive assembly 24.

[0176] Taking two flaps 23 arranged in the front-to-back direction as an example, the flap drive assembly 24 is located in the middle of the smoke collection chamber in the left-to-right direction so that the flaps 23 on both sides are subjected to more even force.

[0177] Existing stoves are generally dual-burner stoves, with the two burners arranged in a left-right direction. By setting the flip-plate drive assembly 24 inside the cover 21 and placing the flip-plate drive assembly 24 in the middle position in the left-right direction of the cover 21, the space inside the cover 21 can be divided into two areas, left and right, which helps to improve the negative pressure effect formed in the two areas, thereby improving the extraction effect of oil fumes.

[0178] In this embodiment, the flip-plate drive assembly 24 includes a bracket 244, a linear drive component 245, and two linkage assemblies 246. The bracket 244 is fixed to the cover 21. The linear drive component 245 and the linkage assemblies 246 are both mounted on the bracket 244. The output end of the linear drive component 245 is connected to the two linkage assemblies 246 respectively. The linkage assemblies 246 pass through the cover 21 and are connected to the flip-plate 23. When the output end of the linear drive component 245 moves in the up-down direction, the linear drive component 245 drives the linkage assemblies 246 to move relative to the bracket 244, thereby realizing the flip-plate 23 flipping drive.

[0179] Using a linear drive component 245 as the power source, the vertical space of the hood 21 and the vertical space within the main housing mechanism 1 are fully utilized, which can meet the space required for movement and reduce the impact on the size of the smoke hood 2, thereby avoiding an increase in the overall size of the machine. The connecting rod assembly 246 drives the flap 23 to rotate. The connecting rod assembly 246 can be folded and unfolded. When folded, it occupies little space, reducing the impact on smoke exhaust performance caused by occupying space within the smoke hood 2. When unfolded, the connecting rod assembly 246 has a large extension range, which is beneficial to increasing the rotation angle of the flap 23 and better meeting the user's needs.

[0180] In this embodiment, the linear drive component 245 is an electric actuator, which has the advantages of high motion accuracy and small overall size, and also has a self-locking function, enabling the flap 23 to be stably maintained in the first and second positions. In other embodiments, the linear drive component 245 may also be a cylinder, a hydraulic cylinder, a gear and rack drive assembly, or a lead screw and nut drive assembly.

[0181] In order to drive the flap 23 to flip via the linkage assembly 246, the linkage assembly 246 includes a first link 2461, a second link 2462 and a third link 2463. One end of the first link 2461 is hinged to the bracket 244; one end of the second link 2462 is hinged to the other end of the first link 2461, the second link 2462 slides through the cover 21, and the other end of the second link 2462 is hinged to the flap 23; one end of the third link 2463 is hinged to the middle of the second link 2462, and the other end of the third link 2463 is hinged to the output end of the linear drive 245.

[0182] When the flap 23 is in the first position, the linkage assembly 246 is as follows: Figure 18 As shown, at this time, the output end of the linear drive 245 is at its highest point, the third link 2463 moves upward, driving the second link 2462 to retract into the cover 21, so that the first link 2461 and the third link 2463 are respectively located on both sides of the second link 2462 along the first horizontal direction. The top ends of the first link 2461 and the top ends of the second link 2462 are connected and set at an acute angle. The first link 2461 and the second link 2462 are in a retracted state, reducing the space occupied. The third link 2463 drives the first link 2461 and the second link 2462 to retract upward into the cover 21, thereby driving the flap 23 to flip upward to the first position to block the smoke inlet.

[0183] When the flap 23 is in the second position, the linkage assembly 246 is as follows: Figure 19 As shown, point A is the hinge point between the first link 2461 and the bracket 244, point B is the hinge point between the first link 2461 and the second link 2462, point C is the hinge point between the second link 2462 and the third link 2463, point D is the hinge point between the third link 2463 and the linear drive 245, and point E is the hinge point between the second link 2462 and the flip plate 23. At this time, the output end of the linear drive 245 is at the lowest point, that is, point D is at the lowest position. The third link 2463 pushes the second link 2462 to move downward as a whole, causing the first link 2461 to rotate downward, so that the second link 2462 moves below the first link 2461. The angle between the third link 2463 and the vertical direction increases, so as to push the second link 2462 to rotate along the first horizontal direction towards both sides of the cover 21, thereby causing the flip plate 23 to flip to the second position.

[0184] like Figure 20 As shown, the second link 2462 is provided with at least two hinge positions. The first link 2461 can be selectively hinged to any one of the hinge positions to adjust the effective length of the second link 2462, thereby adjusting the maximum flip angle of the flap 23.

[0185] In this embodiment, three hinge positions are provided, located at one end of the second connecting rod 2462 that is not connected to the flap 23. Each hinge position has a hinge hole 24623, which, in conjunction with a pin, enables the hinge connection between the first connecting rod 2461 and the second connecting rod 2462. The distance between the hinge position connecting the first connecting rod 2461 and the end connecting the flap 23 in the second connecting rod 2462 is the effective length of the second connecting rod 2462. By selecting a suitable hinge position to adjust the effective length, the rotation angle of the flap 23 can be adjusted according to actual needs.

[0186] In other embodiments, the number of hinge positions can be set according to actual needs.

[0187] To facilitate the connection of the second link 2462 with the first link 2461 and the third link 2463 respectively, the second link 2462 includes a third link portion 24621 and a fourth link portion 24622 arranged at an angle. The two ends of the third link portion 24621 are connected to the first link 2461 and the flap 23 respectively, and the fourth link portion 24622 is hinged to the third link 2463. By setting the third link portion 24621 and the fourth link portion 24622, the length of the third link 2463 can be shortened, which is beneficial to increasing the flipping angle of the second link 2462.

[0188] Optionally, the third rod 24621 is an arc-shaped rod, which protrudes towards the fourth rod 24622, which is beneficial for pushing the flap 23 to flip.

[0189] To improve the stability of the movement, a guide portion 24421 is provided on the bracket 244. The guide portion 24421 extends vertically, and the output end of the linear drive member 245 slides in cooperation with the guide portion 24421. The guide portion 24421 guides the movement of the output end of the linear drive member 245, which helps to ensure the accuracy of the movement direction of the output end and improves the stability of the movement of the linkage assembly 246.

[0190] In this embodiment, the guide portion 24421 is a sliding groove, and the output end of the linear drive member 245 is in sliding engagement with it. In other embodiments, the guide portion 24421 can be a guide rail or a guide rod, as long as it can guide the linear movement of the output end of the linear drive member 245.

[0191] In this embodiment, the plane containing the connecting rod assembly 246 is perpendicular to the second horizontal direction, meaning the plane containing the connecting rod assembly 246 is a vertical plane extending forward and backward. This arrangement reduces the space occupied by the flap drive assembly 24 in the left-right direction, thereby reducing the impact of the flap drive assembly 24 being located inside the hood 21 on the performance of fume extraction.

[0192] Specifically, the first link 2461, the second link 2462 and the third link 2463 are all flat rods, and the plane in which they are located is parallel to the second horizontal direction, so as to reduce the size of the link assembly 246 in the second horizontal direction and make the flap drive assembly 24 occupy less space.

[0193] In this embodiment, the linkage assembly 246 and the linear drive member 245 are located on opposite sides of the bracket 244 along the second horizontal direction, so as to make the structure of the flap drive assembly 24 more compact.

[0194] like Figure 21 As shown, the hood 21 includes a main shell 217 and a bottom shell plate 218. The bottom end of the main shell 217 has a first opening, and the top surface of the main shell 217 has a second opening that connects to the main housing mechanism 1. The bottom shell plate 218 is connected to the main shell 217 and covers the first opening. A smoke inlet is provided on the bottom shell plate 218. A flap drive assembly 24 is disposed on the bottom shell plate 218. The output end of the flap drive assembly 24 slides through the bottom shell plate 218 and connects to two flaps 23. The flap drive assembly 24 is supported and fixed by the bottom shell plate 218, eliminating the need for additional fixing structures. This reduces the space occupied inside the hood 21, thereby reducing the impact on smoke exhaust performance.

[0195] like Figure 22 As shown, the bracket 244 includes a vertical plate 2442 and a base 2441. The base 2441 is mounted on the bottom plate 218 of the housing and is fixed to the bottom plate 218 by screws or other fasteners. The base 2441 increases the contact area with the bottom plate 218, which helps improve the stability of the bracket 244. The vertical plate 2442 is connected to the connecting rod assembly 246. The vertical plate 2442 is vertically arranged and parallel to the front-back direction, making it a flat structure to reduce space occupation.

[0196] The bottom plate 218 has a clearance position in the middle along the second horizontal direction, and the smoke inlets are located on both sides of the clearance position along the second horizontal direction. Specifically, the bottom plate 218 has a solid structure in the middle position in the left-right direction, forming a clearance position extending in the front-back direction. The bracket 244 is set in the clearance position, and smoke inlets are provided on both the left and right sides of the clearance position to cooperate with the dual-burner structure in existing stoves, so that each burner has a corresponding smoke inlet.

[0197] To facilitate the extension of the flap drive assembly 24 outside the cover 21 for connection with the flap 23, combined with Figure 21 and Figure 23 As shown, a clearance hole is provided on the bottom plate 218 of the shell, and an elastic seal 215 is provided in the clearance hole. The elastic seal 215 is provided with an adjustment first notch 2151, and the second connecting rod 2462 is provided through the first notch 2151. The elastic seal 215 is made of elastic material. Under the elastic properties of the elastic seal 215 itself, the two side walls of the first notch 2151 fit together. When the second connecting rod 2462 passes through the first notch 2151, the two side walls of the first notch 2151 are close to the second connecting rod 2462, thereby achieving a sliding sealing fit with the second connecting rod 2462 and reducing the overflow of oil fumes.

[0198] It should be noted that the first cut 2151 is a narrow slit structure, allowing the two sidewalls of the first cut 2151 to fit together under their own elastic properties when the elastic seal 215 is not subjected to external force, thus closing the first cut 2151. When the second link 2462 passes through the first cut 2151, the two sidewalls of the first cut 2151 are pushed apart by external force, allowing the second link 2462 to slide within the first cut 2151, avoiding interference with the normal movement of the second link 2462.

[0199] To reduce the resistance encountered by the second link 2462 during movement, at least one second notch 2152 is provided on the elastic seal 215. The second notch 2152 is intersected and connected with the first notch 2151. By providing the second notch 2152, the first notch 2151 can better adapt to the movement of the second link 2462 and deform adaptively, reducing the resistance of the second link 2462 within the first notch 2151, thus making the movement of the flap 23 smoother.

[0200] It should be noted that the second cut 2152 can also be a slit structure. The width of the second cut 2152 is greater than that of the first cut 2151, so as to provide space for the deformation of the elastic seal 215.

[0201] Optionally, the projection of the first cut 2151 onto the horizontal plane extends along the first horizontal direction to avoid interfering with the movement of the second link 2462.

[0202] To improve the smoke collection effect, the bottom plate 218 is constructed with a downward-facing smoke collection cavity 214. By setting the smoke collection cavity 214, the smoke collection depth when the flap 23 is opened to the second position can be increased, which is beneficial to improving the smoke collection effect.

[0203] The inner wall of the smoke collection chamber 214 is provided with a limiting protrusion 219, which can abut against the flap 23 so that the flap 23 stays in the first position and plays a limiting role for the flap 23.

[0204] The vertical cross-sectional shape of the shell base plate 218 along the front-to-back direction is approximately M-shaped. Specifically, as shown... Figure 8 As shown, the bottom plate 218 includes two first inclined plates 2181 and two second inclined plates 2182. The first inclined plates 2181 are parallel to the second horizontal direction, and the bottom ends of the two first inclined plates 2181 are connected. A smoke inlet is provided on the first inclined plate 2181. The second inclined plates 2182 are parallel to the second horizontal direction. The ends of the two first inclined plates 2181 that are opposite to each other along the first horizontal direction are connected to the second inclined plates 2182. The second inclined plates 2182 extend downward from the first inclined plates 2181. The two first inclined plates 2181 and the two second inclined plates 2182 form an M-shape, so that each first inclined plate 2181 and its adjacent second inclined plate 2182 form a concave cavity. The two concave cavities are connected to form a smoke collection cavity 214.

[0205] The shell bottom plate 218 with the above structure can, on the one hand, form a smoke collection chamber 214. The depth of each cavity is large at both ends near the cover body 21 along the first horizontal direction and small in the middle, which is conducive to improving the smoke collection and oil fume absorption effect on the side near the user and improving the user experience. On the other hand, it can improve the structural strength of the shell bottom plate 218 to meet the support and fixation requirements of the flip-plate drive assembly 24.

[0206] To improve the stability of the flip-up drive assembly 24, a positioning groove is provided on the bottom surface of the bracket 244. The positioning groove is adapted to the shape of the top surface of the shell base plate 218, and the positioning groove cooperates with the shell base plate 218. By setting the positioning groove, the bracket 244 and the shell base plate 218 can be positioned, which helps to improve the fixing effect and positional accuracy.

[0207] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. An island-style range hood, characterized in that, It includes a main box mechanism (1), a smoke hood (2) and a lifting mechanism (3). The smoke hood (2) is located below the main box mechanism (1) and communicates with the main box mechanism (1). The lifting mechanism (3) connects the main box mechanism (1) and the smoke hood (2). The lifting mechanism (3) is used to drive the smoke hood (2) to rise and fall. The smoke hood (2) includes: The cover (21) has a smoke inlet on its bottom surface; Two flaps (23) are rotatably connected to the cover (21) on opposite sides along the first horizontal direction. A flap drive assembly (24) is connected to the flap (23). The flap drive assembly (24) is used to drive the flap (23) to rotate so that the flap (23) can switch between a first position that blocks the smoke inlet and a second position that flips outward to open the smoke inlet from the outside of the cover (21).

2. The island-style range hood according to claim 1, characterized in that, The bottom surface of the cover (21) is recessed to form a smoke collection cavity (214), and the smoke inlet is located on the top surface of the smoke collection cavity (214); And / or, the cover (21) is a rectangular cover, the first horizontal direction is the width direction of the cover (21), the flap (23) extends along the second horizontal direction, the second horizontal direction is the length direction of the cover (21), and the second horizontal direction is perpendicular to the first horizontal direction.

3. The island-style range hood according to claim 2, characterized in that, The ends of the two flaps (23) that are opposite to each other along the first horizontal direction are rotatably connected to the inner wall of the smoke collection chamber (214). When the two flaps (23) are in the first position, the two flaps (23) are located inside the smoke collection chamber (214). And / or, the smoke collection hood (2) further includes an oil cup (26), which is suspended inside the smoke collection chamber (214). When the flap (23) is in the first position, the two flaps (23) cover the bottom opening of the smoke collection chamber (214), and the oil cup (26) is located above the flap (23).

4. The island-style range hood according to any one of claims 1-3, characterized in that, The flap drive assembly (24) includes a linkage structure connected to the flap (23), and the linkage structure is parallel to a vertical plane parallel to the first horizontal direction.

5. The island-style range hood according to any one of claims 1-3, characterized in that, The cover (21) has a sandwich layer in the side wall at least one end along the second horizontal direction, and at least part of the flip-board drive assembly (24) is disposed in the sandwich layer. The second horizontal direction is perpendicular to the first horizontal direction. The output end of the flip-board drive assembly (24) extends out of the sandwich layer and is respectively connected to the two flip-boards (23) on both sides.

6. The island-style range hood according to claim 5, characterized in that, The flip-board drive assembly (24) includes: A flipping drive (241) is located within the interlayer and connected to the cover (21); The active rod (242) is connected at its middle part to the output shaft of the flipping drive (241), and the active rod (242) can rotate in a vertical plane parallel to the first horizontal direction; Two driven rod groups (243) are provided. Both ends of the driving rod (242) are hinged to the driven rod group (243). The driven rod group (243) includes a first transmission rod (2431), a second transmission rod (2432) and a third transmission rod (2433) that are hinged in sequence. The first transmission rod (2431) is hinged to the driving rod (242), the third transmission rod (2433) is hinged to the flap (23), and the middle part of the second transmission rod (2432) is rotatably connected to the cover (21).

7. The island-style range hood according to any one of claims 1-3, characterized in that, A smoke collection chamber is formed inside the cover (21), the smoke collection chamber is connected to the main box mechanism (1), the flap drive assembly (24) is located in the middle of the smoke collection chamber along the second horizontal direction, the first horizontal direction is perpendicular to the second horizontal direction, and the output end of the flap drive assembly (24) extends out of the smoke collection chamber and is connected to the two flaps (23) on both sides respectively.

8. The island-style range hood according to claim 7, characterized in that, The flip-board drive assembly (24) includes: The bracket (244) is fixed to the cover (21); A linear drive (245) is disposed on the bracket (244), and the output end of the linear drive (245) is capable of moving in the vertical direction; Two linkage assemblies (246) are mounted on the bracket (244). One end of the linkage assembly (246) is hinged to the output end of the linear drive (245), and the other end of the linkage assembly (246) passes through the cover (21) and is hinged to the flap (23).

9. The island-style range hood according to claim 8, characterized in that, The link assembly (246) includes: The first link (2461) has one end hinged to the bracket (244); The second link (2462) has one end hinged to the other end of the first link (2461), the second link (2462) slides through the cover (21), and the other end of the second link (2462) is hinged to the flap (23); The third link (2463) has one end hinged to the middle of the second link (2462) and the other end hinged to the output end of the linear drive (245).

10. The island-style range hood according to any one of claims 1-3, characterized in that, The lifting mechanism (3) includes: The guide rail assembly (33) includes a fixed guide rail and a sliding member that are slidably fitted. The fixed guide rail is provided at each corner of the main box mechanism (1) and the sliding member is connected to the smoke hood (2). The lifting drive assembly (31) is located inside the main box mechanism (1), and the output end of the lifting drive assembly (31) is connected to the smoke collection hood (2).

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