A multi-baffle linkage plate group and a range hood

Abstract

This invention belongs to the field of range hood technology and discloses a multi-baffle linkage plate assembly and a range hood. The multi-baffle linkage plate assembly includes a driving device and a baffle assembly. The driving device is installed inside the range hood housing. The baffle assembly includes a first baffle and a second baffle that are rotatably connected. The first baffle is rotatably connected to the top of the opening side of the range hood housing. The driving device can simultaneously drive the first and second baffles to rotate outward, expanding the smoke collection space, providing better smoke blocking effect, and reducing obstruction of the user's view. There is no movement interference between the first and second baffles, and the smoke intake formed by the range hood is closer to the smoke generation area, resulting in better smoke extraction. The range hood of this invention uses the above-mentioned multi-baffle linkage plate assembly, which provides good smoke extraction effect, and the baffles do not obstruct or interfere with the user's view, thus improving the user experience.

Description

Technical Field

[0001] This invention relates to the field of range hood technology, and in particular to a multi-baffle linkage plate assembly and a range hood. Background Technology

[0002] Range hoods are widely used appliances in kitchens. They are usually equipped with an upper baffle that can be flipped outward to gather and block cooking fumes. However, most range hoods on the market currently have a large, one-piece flat upper baffle. When the outward angle is too large, it will seriously obstruct the user's view, causing inconvenience. In addition, an excessively large opening will reduce the suction power and affect the smoke extraction effect. If the outward angle is too small, the smoke collection area will be too small, resulting in a poor smoke collection effect and affecting the smoke extraction performance of the range hood. Summary of the Invention

[0003] The purpose of this invention is to provide a multi-baffle linkage plate assembly and a range hood that can effectively solve the problems of baffles turning outward and obstructing the user's view, as well as the problem of the smoke extraction port being far from the smoke generation area and the poor smoke extraction effect.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] Firstly, a multi-baffle linkage plate assembly is provided, including:

[0006] The drive unit is installed inside the casing of the range hood;

[0007] A baffle assembly, comprising a first baffle and a second baffle rotatably connected, wherein the first baffle is rotatably connected to the top of the opening side of the smoke hood housing, and the driving device is capable of simultaneously driving the first baffle and the second baffle to rotate outward.

[0008] As a preferred structure of the present invention, the baffle assembly further includes a third baffle, which is rotatably connected to the bottom of the opening side of the smoke hood housing, and the driving device can simultaneously drive the first baffle, the second baffle and the third baffle to rotate outward.

[0009] As a preferred structure of the present invention, the multi-baffle linkage plate group further includes a multi-bar mechanism, which is connected to the first baffle, the second baffle and the third baffle, and can simultaneously drive the first baffle, the second baffle and the third baffle to rotate outward under the driving action of the driving device.

[0010] As a preferred structure of the present invention, the multi-link mechanism includes:

[0011] A movable frame is connected to the output end of the drive device. The movable frame is provided with a first slide groove and a second slide groove. A first rotating rod is rotatably connected to the movable frame. The first end of the first rotating rod is rotatably connected to the movable frame, and the second end is movably connected to the first slide groove and the first end of the second rotating rod. The second end of the second rotating rod is slidably connected to the second slide groove.

[0012] The main push rod is fixedly connected to the movable frame, with its first end connected to the first baffle and its second end connected to the third baffle.

[0013] The linkage assembly is rotatably connected to the second end of the second rotating rod via the first connecting rod. The linkage assembly and the first connecting rod can cooperate to drive the first baffle and the second baffle to rotate simultaneously.

[0014] In a preferred embodiment of the present invention, the linkage assembly includes a second connecting rod, a third connecting rod, a first connecting frame, a second connecting frame, and a first crank and a second crank rotatably connected thereto. The first connecting frame and the second connecting frame are respectively connected to the inner walls of the first baffle and the second baffle. The two ends of the first connecting frame are movably connected to the first end of the second connecting rod and the first end of the second crank, respectively. The two ends of the second connecting frame are movably connected to the first end of the first crank and the first end of the third connecting rod, respectively. The second end of the third connecting rod is movably connected to the second end of the second crank. The end of the first connecting rod away from the second rotating rod is movably connected to the second end of the second connecting rod and the second end of the first crank.

[0015] As a preferred structure of the present invention, the third baffle is provided with a through hole to provide clearance space for the linkage group.

[0016] As a preferred structure of the present invention, when the baffle assembly is turned outward, the first baffle forms an outward turning angle α with the vertical direction, and the second baffle forms an outward turning angle β with the vertical direction, wherein the outward turning angle α < the outward turning angle β.

[0017] As a preferred structure of the present invention, when the baffle assembly is turned outward into position, the third baffle forms an outward turning angle δ with the vertical direction. The values ​​of the outward turning angle α, the outward turning angle β and the outward turning angle δ are in the following ranges: 0°≤α<45°, 0°≤β≤90°, 0°≤δ≤45°.

[0018] As a preferred structure of the present invention, when the baffle assembly is turned outward into position, the horizontal gap L1 between the first baffle and the second baffle is greater than 0 cm.

[0019] Secondly, a range hood is provided, including the aforementioned multi-baffle linkage plate assembly.

[0020] The beneficial effects of this invention are:

[0021] The multi-baffle linkage assembly of the present invention includes a split first baffle and a second baffle. Under the driving action of the driving device, the first baffle and the second baffle can simultaneously flip outward, expanding the smoke collection space and providing a better smoke blocking effect while reducing obstruction of the user's view. There is no movement interference between the first baffle and the second baffle, and the smoke intake formed by the range hood is closer to the smoke generation area, resulting in a better smoke extraction effect.

[0022] The range hood of the present invention uses the above-mentioned multi-baffle linkage plate assembly, which has a good smoke extraction effect and the baffles do not obstruct or interfere with the user's view, thus improving the user experience. Attached Figure Description

[0023] Figure 1 This is a structural diagram of the range hood in a non-working state;

[0024] Figure 2 This is a structural diagram of a range hood in operation.

[0025] Figure 3 This is a schematic diagram of the internal structure of the range hood when it is not in operation;

[0026] Figure 4 This is a schematic diagram of the internal structure of the range hood when it is in operation;

[0027] Figure 5 This is a schematic diagram of the multi-link mechanism and baffle assembly of the range hood in the non-working state (the linkage structure is hidden);

[0028] Figure 6 This is a structural diagram of the multi-link mechanism and baffle assembly of the range hood in operation.

[0029] Figure 7 This is a schematic diagram of the linkage rod assembly and baffle assembly when the range hood is in a non-working state;

[0030] Figure 8 This is a schematic diagram of the linkage rod assembly and baffle assembly when the range hood is in operation.

[0031] In the picture:

[0032] 1. Drive unit; 11. Electric actuator;

[0033] 2. Multi-bar linkage; 21. Moving frame; 211. First slide rail; 212. Second slide rail; 22. Main push rod; 23. Linkage rod assembly; 231. First connecting rod; 232. Second connecting rod; 233. Third connecting rod; 234. First connecting frame; 235. Second connecting frame; 236. First crank; 237. Second crank;

[0034] 24. First rotating rod; 25. Second rotating rod;

[0035] 3. Baffle assembly; 31. First baffle; 32. Second baffle; 33. Third baffle; 331. Through hole; 100. Range hood housing; 101. Flue; 102. Oil collection box. Detailed Implementation

[0036] 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.

[0037] 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.

[0038] 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.

[0039] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0040] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0041] like Figures 1-8As shown, the present invention provides a multi-baffle linkage plate assembly, including a drive device 1 and a baffle assembly 3 installed on a range hood housing 100. The drive device 1 is installed inside the range hood housing 100; the baffle assembly 3 includes a first baffle 31 and a second baffle 32. The first baffle 31 is rotatably connected to the top of the opening side of the range hood housing 100, and the drive device 1 can simultaneously drive the first baffle 31 and the second baffle 32 to rotate outward.

[0042] In this embodiment, when the range hood is not in operation, such as Figure 1 and Figure 3 As shown, the first baffle 31 and the second baffle 32 coplanarly cover the opening side of the range hood housing 100 to reduce the space occupied by the range hood and protect the internal structure of the range hood housing 100. When the range hood is in operation, as... Figure 2 and Figure 4 As shown, the driving device 1 pushes the first baffle 31 and the second baffle 32 to flip outwards simultaneously, which expands the smoke collection space of the range hood, provides better smoke blocking and collection effects, and reduces obstruction of the user's line of sight. There is no movement interference between the first baffle 31 and the second baffle 32, and the oil fume inlet formed by the range hood is closer to the smoke generation area, which provides a better smoke extraction effect.

[0043] Optionally, the baffle assembly 3 also includes a third baffle 33, which is rotatably connected to the bottom of the opening side of the range hood housing 100. The drive device 1 can simultaneously drive the first baffle 31, the second baffle 32 and the third baffle 33 to rotate outward.

[0044] like Figure 3 and Figure 4 As shown, when the range hood is not in operation, the third baffle 33 is vertically attached to and stored inside the first baffle 31 and the second baffle 32. When the range hood is in operation, the third baffle 33, driven by the driving device 1, rotates synchronously with the first baffle 31 and the second baffle 32 away from the range hood housing 100. The first baffle 31 and the second baffle 32 form a large smoke-gathering space, while the third baffle 33 simultaneously flips outward to block the entrance of the smoke-gathering space. The third baffle 33 is provided with uniformly spaced strip-shaped smoke inlet holes. Smoke is drawn into the range hood housing 100 through the strip-shaped smoke inlet holes on the third baffle 33. The third baffle 33 not only optimizes the airflow channel to facilitate the intake of oil fumes and obtain a better intake effect, but also effectively prevents foreign objects from being drawn into the range hood, improving the safety of use. The first baffle 31, the second baffle 32, and the third baffle 33 can achieve synchronous flipping motion through the same drive device 1. The different motion requirements of multiple baffles can be achieved through a single drive source, and multiple baffle functions can be realized at the same time. This can effectively save power costs and effectively avoid the synchronization and interference problems that exist in multiple power controls.

[0045] Optionally, the drive device 1 includes an electric push rod 11, the linear output end of which drives the multi-bar linkage 2 to move linearly.

[0046] In this embodiment, the driving device 1 can be an electric push rod 11, which drives the moving frame 21 to move back and forth in a linear motion through the linear output end of the electric push rod 11. In addition, the driving device 1 can be other types of linear drive mechanisms, such as hydraulic push rod transmission, gear and rack transmission, etc., including but not limited to the method used in this embodiment.

[0047] Optionally, the multi-baffle linkage assembly further includes a multi-bar mechanism 2, which is connected to the first baffle 31, the second baffle 32, and the third baffle 33. Under the driving action of the driving device 1, the multi-bar mechanism 2 can simultaneously drive the first baffle 31, the second baffle 32, and the third baffle 33 to rotate outward. In this embodiment, under the driving force of the driving device 1, the first baffle 31, the second baffle 32, and the third baffle 33 are synchronously rotated through the multi-bar mechanism 2, realizing the synchronous linkage of the first baffle 31, the second baffle 32, and the third baffle 33.

[0048] Specifically, the multi-link mechanism 2 includes a movable frame 21, a main push rod 22, and a linkage group 23. The movable frame 21 is connected to the output end of the drive device 1, and a first slide groove 211 and a second slide groove 212 are provided on the movable frame 21. A first rotating rod 24 is rotatably connected to the movable frame 21. The first end of the first rotating rod 24 is rotatably connected to the movable frame 21, and the second end is movably connected to the first slide groove 211 and the first end of the second rotating rod 25. The second end of the second rotating rod 25 is slidably connected to the second slide groove 212. The main push rod 22 is fixedly connected to the movable frame 21. The first end of the main push rod 22 is connected to the first baffle 31, and the second end is connected to the third baffle 33. The linkage group 23 is rotatably connected to the second end of the second rotating rod 25 through a first connecting rod 231. The linkage group 23 and the first connecting rod 231 can cooperate to drive the first baffle 31 and the second baffle 32 to rotate simultaneously.

[0049] In this embodiment, as Figure 3 and Figure 4 As shown, the main push rod 22 is vertically fixedly connected to the movable frame 21, and its first end (i.e. Figure 3 and Figure 4 The top end of the main push rod 22 (shown) is connected to the first baffle 31 via a short connecting rod, and the second end of the main push rod 22 (i.e., Figure 3 and Figure 4 The bottom end of the main push rod 22 (shown) is connected to the third baffle 33 via a short connecting rod; the movable frame 21 is provided with an arc-shaped first slide groove 211 and a second slide groove 212, the two ends of the arc of the first slide groove 211 are respectively marked as position A and position B, and the two ends of the arc of the second slide groove 212 are respectively marked as position C and position D, and positions A, B, C, and D are marked as follows. Figure 6As shown. When the range hood is not in operation, the second end of the first rotating rod 24 is at position A of the first sliding groove 211, and the second end of the second rotating rod 25 is at position C of the second sliding groove 212. At this time, the third baffle 33 retracts, and the first baffle 31 and the second baffle 32 are in a coplanar position, covering the opening side of the range hood housing 100, as shown. Figure 5 As shown; when the range hood is in operation, the drive device 1 pushes the moving frame 21 to move linearly, the first end of the main push rod 22 pushes the first baffle 31, and the first baffle 31 flips outward under the pushing action of the main push rod 22. The second end of the first rotating rod 24 moves from position A to position B of the first slide groove 211, and the second end of the second rotating rod 25 moves from position C to position D of the second slide groove 212. The linkage group 23 cooperates with the first connecting rod 231 to drive the second baffle 32 to flip relative to the first baffle 31, as shown. Figure 6 and Figure 4 As shown, the first baffle 31, the second baffle 32 and the third baffle 33 are rotated in a coordinated manner.

[0050] More specifically, the linkage assembly 23 includes a second connecting rod 232, a third connecting rod 233, a first connecting frame 234, a second connecting frame 235, and a first crank 236 and a second crank 237 rotatably connected. The first connecting frame 234 and the second connecting frame 235 are respectively connected to the inner walls of the first baffle 31 and the second baffle 32. The two ends of the first connecting frame 234 are respectively movably connected to the first end of the second connecting rod 232 and the first end of the second crank 237. The two ends of the second connecting frame 235 are respectively movably connected to the first end of the first crank 236 and the first end of the third connecting rod 233. The second end of the third connecting rod 233 is movably connected to the second end of the second crank 237. The end of the first connecting rod 231 away from the second rotating rod 25 is movably connected to the second end of the second connecting rod 232 and the second end of the first crank 236.

[0051] In this embodiment, when the driving device 1 drives the moving frame 21 to move, such as Figure 6 As shown, in conjunction with the reference appendix Figure 7 and attached Figure 8The main push rod 22 pushes the first baffle 31 to flip, and the first connecting frame 234 moves with the first baffle 31, driving the second connecting rod 232, the first connecting rod 231, the second rotating rod 25, and the first rotating rod 24 to move. The second end of the second rotating rod 25 moves from position C to position D of the second slide groove 212, and the second end of the first rotating rod 24 moves from position A to position B of the first slide groove 211. At the same time, the first connecting rod 231 is pressed, causing the first crank rod 236 and the second crank rod 237 to move together, forming an obtuse angle between the first baffle 31 and the second baffle 32. This linkage rod group 23 enables the first baffle 31 and the second baffle 32 to smoothly flip and open and close, effectively avoiding interference between the lower edge of the first baffle 31 and the second baffle 32 during the outward flipping process, and also ensuring that the first baffle 31 and the second baffle 32 can be reset. Figure 7 The vertical distance H1 between the first baffle 31 and the second baffle 32 is close to zero, and the absence of gaps provides the user with a better visual experience.

[0052] Optionally, the third baffle 33 is provided with a through hole 331 to provide clearance space for the linkage assembly 23. One end of the linkage assembly 23 is connected to the first baffle 31, and the other end passes through the through hole 331 and is connected to the second baffle 32. It can be understood that, as Figure 4 As shown, in order to prevent the third baffle 33 from interfering with the linkage group 23 when it flips outward, a through hole 331 is provided on the third baffle 33 for the linkage group 23 to pass through. The through hole 331 provides clearance space to prevent the third baffle 33 from interfering with the linkage group 23.

[0053] Optionally, in this embodiment, when the baffle assembly 3 is flipped outwards into position, such as Figure 4 As shown, the first baffle 31 forms an outward angle α with the vertical direction, and the second baffle 32 forms an outward angle β with the vertical direction. The outward angle α < the outward angle β, so that the first baffle 31 and the second baffle 32 are in the obtuse angle shape with the best outward angle, which improves the smoking effect and reduces the obstruction of vision.

[0054] Specifically, when the baffle assembly 3 is turned outwards to its position, the third baffle 33 forms an outward turning angle δ with the vertical direction. In this embodiment, the optimal values ​​of the outward turning angle α, outward turning angle β, and outward turning angle δ are: 0°≤α<45°, 0°≤β≤90°, and 0°≤δ≤45°. This ensures that the first baffle 31, the second baffle 32, and the third baffle 33 are in their optimal state, providing strong smoke blocking, smoke gathering, and smoke extraction effects while not obstructing the user's view, thus improving the user experience. It is understood that the value range of the outward turning angle β is not limited to 0°-90°. The value range of the outward turning angle β can be expanded from 0°-90° to 0°-270° by adjusting the length of some connecting rods in the linkage assembly 23. The design selection can be made according to actual needs and is not limited to the range shown in this embodiment.

[0055] Optionally, when the first baffle 31 and the second baffle 32 are turned outwards into position, the horizontal gap L1 between the first baffle 31 and the second baffle 32 is greater than 0cm.

[0056] In this embodiment, as Figure 8 As shown, when the range hood is in operation, when the first baffle 31 and the second baffle 32 are turned outwards and in place, the horizontal gap L1 between the first baffle 31 and the second baffle 32 is greater than 0cm, which effectively prevents the possibility of oil fumes escaping from the gap between the first baffle 31 and the second baffle 32 when the range hood is in operation, and achieves better smoke collection and blocking effect.

[0057] In addition, the present invention also provides a range hood, which includes the above-mentioned multi-baffle linkage plate assembly. The range hood also includes a flue 101 and an oil collection box 102. The flue 101 is located at the top of the range hood housing 100 and communicates with the range hood housing 100. A check valve is provided in the flue 101 to prevent backflow of oil fumes and affect the exhaust effect of the range hood. The oil collection box 102 is located at the bottom of the range hood housing 100 for unified collection of oil stains, which is convenient for users to clean in time.

[0058] 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. A multi-baffle linkage plate assembly, characterized in that, include: The drive unit (1) is installed inside the casing (100) of the smoke hood; The baffle assembly (3) includes a first baffle (31) and a second baffle (32) that are rotatably connected. The first baffle (31) is rotatably connected to the top of the opening side of the smoke machine housing (100). The driving device (1) can simultaneously drive the first baffle (31) and the second baffle (32) to rotate outward. The baffle assembly (3) further includes a third baffle (33), which is rotatably connected to the bottom of the opening side of the smoke machine housing (100). The driving device (1) can simultaneously drive the first baffle (31), the second baffle (32) and the third baffle (33) to rotate outward.

2. The multi-baffle linkage plate assembly according to claim 1, characterized in that, The multi-baffle linkage plate group also includes a multi-link mechanism (2), which is connected to the first baffle (31), the second baffle (32) and the third baffle (33). Under the driving action of the driving device (1), it can simultaneously drive the first baffle (31), the second baffle (32) and the third baffle (33) to rotate outward.

3. The multi-baffle linkage plate assembly according to claim 2, characterized in that, The multi-link mechanism (2) includes: A movable frame (21) is connected to the output end of the drive device (1). The movable frame (21) is provided with a first slide groove (211) and a second slide groove (212). A first rotating rod (24) is rotatably connected to the movable frame (21). The first end of the first rotating rod (24) is rotatably connected to the movable frame (21), and the second end is movably connected to the first end of the first slide groove (211) and the first end of the second rotating rod (25). The second end of the second rotating rod (25) is slidably connected to the second slide groove (212). The main push rod (22) is fixedly connected to the movable frame (21). The first end of the main push rod (22) is connected to the first baffle (31), and the second end is connected to the third baffle (33). The linkage group (23) is rotatably connected to the second end of the second rotating rod (25) via the first connecting rod (231). The linkage group (23) and the first connecting rod (231) can cooperate to drive the first baffle (31) and the second baffle (32) to rotate simultaneously.

4. The multi-baffle linkage plate assembly according to claim 3, characterized in that, The linkage assembly (23) includes a second connecting rod (232), a third connecting rod (233), a first connecting frame (234), a second connecting frame (235), and a first crank (236) and a second crank (237) rotatably connected. The first connecting frame (234) and the second connecting frame (235) are respectively connected to the inner walls of the first baffle (31) and the second baffle (32). The two ends of the first connecting frame (234) are respectively movably connected to the first end of the second connecting rod (232) and the first end of the second crank (237). The two ends of the second connecting frame (235) are respectively movably connected to the first end of the first crank (236) and the first end of the third connecting rod (233). The second end of the third connecting rod (233) is movably connected to the second end of the second crank (237). The end of the first connecting rod (231) away from the second rotating rod (25) is movably connected to the second end of the second connecting rod (232) and the second end of the first crank (236).

5. The multi-baffle linkage plate assembly according to claim 4, characterized in that, The third baffle (33) is provided with a through hole (331) to provide clearance space for the linkage group (23).

6. The multi-baffle linkage plate assembly according to any one of claims 1-5, characterized in that, When the baffle assembly (3) is turned outward, the first baffle (31) forms an outward turning angle α with the vertical direction, and the second baffle (32) forms an outward turning angle β with the vertical direction, wherein the outward turning angle α < the outward turning angle β.

7. The multi-baffle linkage plate assembly according to claim 6, characterized in that, When the baffle assembly (3) is turned outward, the third baffle (33) forms an outward turning angle δ with the vertical direction. The values ​​of the outward turning angle α, the outward turning angle β and the outward turning angle δ are: 0°≤α<45°, 0°≤β≤90°, 0°≤δ≤45°.

8. The multi-baffle linkage plate assembly according to any one of claims 1-5, characterized in that, When the baffle assembly (3) is turned outward into position, the horizontal gap L1 between the first baffle (31) and the second baffle (32) is greater than 0 cm.

9. A range hood, characterized in that, Includes the multi-baffle linkage plate assembly as described in any one of claims 1-8.

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