Range hood

Abstract

The utility model relates to the field of kitchen appliances, and discloses a range hood. The range hood comprises a shell, a turning plate assembly, a driving assembly and a transmission assembly, a first smoke inlet and a second smoke inlet are formed in the shell, and the first smoke inlet is located above the second smoke inlet; the turning plate assembly comprises a first turning plate and a second turning plate which are rotationally connected with the shell, the first turning plate is used for closing or opening the first smoke inlet, and the second turning plate is used for closing or opening the second smoke inlet; the driving assembly is arranged in the shell, and the output end of the driving assembly is connected with the first turning plate; the transmission assembly is arranged between the first turning plate and the second turning plate, and the first turning plate and the second turning plate can move in sequence through the transmission assembly. According to the range hood, the first smoke inlet can be opened independently or the first smoke inlet and the second smoke inlet can be opened at the same time so as to adapt to different oil smoke concentrations and gears of the whole machine; and compared with the prior art, the occupied space is small after the first turning plate and the second turning plate are opened.

Description

Technical Field

[0001] This utility model relates to the field of kitchen appliance technology, and in particular to a range hood. Background Technology

[0002] Range hoods are widely used electrical appliances in kitchens to remove cooking fumes. A typical range hood consists of a housing and a flap assembly. The housing has a smoke inlet. When the range hood is not in use, the flap assembly is closed, blocking the smoke inlet. When the range hood is in operation, the flap assembly flips outward, opening the smoke inlet, thus effectively trapping the smoke.

[0003] As people's demands for living standards and quality of life increase, they have higher requirements for the smoke extraction effect of range hoods. At the same time, they hope that range hoods can adapt their functions to the specific use cases, so that the needs for smoke extraction effect, energy saving, convenience and appearance can be balanced accordingly.

[0004] To meet these requirements, some range hoods with multi-flip panels have been introduced to the market. The flap assembly includes an upper flap and a lower flap. The upper flap can rotate outwards at a certain angle relative to the casing, and the lower flap can rotate further outwards relative to the lower flap, thereby expanding the smoke collection area and ensuring better smoke collection performance. However, these products occupy a significant amount of space when both the upper and lower flaps are open, and the upper flap cannot be opened independently. They also have poor adaptability to different operating conditions of range hoods, affecting the user experience.

[0005] Therefore, there is an urgent need for a range hood to solve the above-mentioned technical problems. Utility Model Content

[0006] The purpose of this utility model is to propose a range hood that occupies little space and is well adaptable to different usage conditions.

[0007] To achieve this objective, the present invention adopts the following technical solution:

[0008] A range hood, comprising:

[0009] The housing has a first smoke inlet and a second smoke inlet, with the first smoke inlet located above the second smoke inlet;

[0010] The flap assembly includes a first flap and a second flap, which are rotatably connected to the housing. The first flap is used to close or open the first smoke inlet, and the second flap is used to close or open the second smoke inlet.

[0011] A drive assembly is disposed inside the housing, and the output end of the drive assembly is connected to the first flap; and,

[0012] A transmission assembly is disposed between the first flap and the second flap, and the transmission assembly enables the first flap and the second flap to move sequentially.

[0013] As a preferred technical solution for the above-mentioned range hood, the transmission assembly includes a transmission plate assembly and a transmission rod. One end of the transmission plate assembly is connected to the inner surface of the first flap, and the other end is connected to the transmission rod. The end of the transmission rod away from the transmission plate assembly is connected to the second flap.

[0014] As a preferred technical solution for the above-mentioned range hood, the transmission plate assembly includes a first transmission plate and a second transmission plate. The first transmission plate is connected to the inner surface of the first flap, and the first transmission plate and the second transmission plate are connected by a limiting structure. The first transmission plate can drive the second transmission plate to move through the limiting structure, and the second transmission plate is connected to the second flap through the transmission rod.

[0015] As a preferred technical solution for the aforementioned range hood, the limiting structure includes a sliding groove disposed on one of the first transmission plate and the second transmission plate, and a slider disposed on the other of the first transmission plate and the second transmission plate. The sliding groove is provided with a first limiting surface and a second limiting surface. The slider and the sliding groove are slidably engaged. During the outward opening stroke of the first transmission plate, the slider can abut against the first limiting surface to drive the second transmission plate to move outward. During the inward closing stroke of the first transmission plate, the slider can abut against the second limiting surface to drive the second transmission plate to move inward.

[0016] As a preferred technical solution for the above-mentioned range hood, the slide is an arc-shaped groove, and the two ends of the arc-shaped groove in the length direction are the first limiting surface and the second limiting surface, respectively.

[0017] As a preferred technical solution for the above-mentioned range hood, the center of the arc-shaped groove, the rotation center of the first transmission plate, and the rotation center of the second transmission plate coincide.

[0018] As a preferred technical solution for the above-mentioned range hood, the first flap, the first transmission plate, and the second transmission plate are respectively connected to the housing at the same point.

[0019] As a preferred technical solution for the above-mentioned range hood, the drive assembly includes a drive unit and a bracket, the bracket is fixedly connected to the first flap, one end of the drive unit is rotatably connected to the bracket, and the other end is connected to the housing.

[0020] As a preferred technical solution for the above-mentioned range hood, the transmission assembly further includes a third transmission plate, one end of which is connected to the inner surface of the second flap, and the other end of which is connected to the transmission rod.

[0021] As a preferred technical solution for the above-mentioned range hood, the transmission assembly further includes an elastic limiting member, one end of which is connected to the housing and the other end of which is connected to the second transmission plate.

[0022] The beneficial effects of this utility model are:

[0023] The range hood of this utility model includes a housing, a flap assembly, a drive assembly, and a transmission assembly. The housing has a first smoke inlet and a second smoke inlet, with the first smoke inlet located above the second smoke inlet. The flap assembly includes a first flap and a second flap, which are rotatably connected to the housing. The first flap is used to close or open the first smoke inlet, and the second flap is used to close or open the second smoke inlet. The drive assembly is disposed inside the housing, and its output end is connected to the first flap. The transmission assembly is disposed between the first flap and the second flap, and enables the first and second flaps to move sequentially. The range hood of this utility model adopts the above-mentioned structure, which realizes the independent opening of the first flap. According to the actual usage conditions, the user can choose to open only the first flap or open the first and second flaps in a certain sequence, thereby realizing the independent opening of the first smoke inlet or the simultaneous opening of the first and second smoke inlets, to adapt to different oil fume concentrations and overall machine settings, improving the adaptability of the range hood to different working conditions, thereby improving user satisfaction; and when both the first and second flaps are open, the space occupied is small, making it more suitable for use in small kitchens. Attached Figure Description

[0024] Figure 1 This is a cross-sectional structural diagram of the range hood in the closed state according to a specific embodiment of the present utility model;

[0025] Figure 2 This is a cross-sectional structural diagram of the range hood in a semi-open state according to a specific embodiment of the present utility model;

[0026] Figure 3 This is a cross-sectional structural diagram of the range hood in its fully open state according to a specific embodiment of the present utility model;

[0027] Figure 4 This is a cross-sectional structural diagram of a range hood in a certain state during the closing process, as provided in a specific embodiment of this utility model.

[0028] In the picture:

[0029] 1. Housing; 2. First flap; 3. Second flap; 4. First transmission plate; 5. Second transmission plate; 6. Transmission rod; 7. Drive unit; 8. Bracket; 9. Third transmission plate; 10. Elastic limiting component; 11. First hinge; 12. Second hinge. Detailed Implementation

[0030] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0031] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0035] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0036] like Figures 1 to 4 As shown, this embodiment provides a range hood, which includes a housing 1, a flap assembly, a drive assembly, and a transmission assembly. The housing 1 is provided with a first smoke inlet and a second smoke inlet, with the first smoke inlet located above the second smoke inlet. The flap assembly includes a first flap 2 and a second flap 3, which are rotatably connected to the housing 1. The first flap 2 is used to close or open the first smoke inlet, and the second flap 3 is used to close or open the second smoke inlet. The drive assembly is disposed inside the housing 1, and its output end is connected to the first flap 2. The transmission assembly is disposed between the first flap 2 and the second flap 3, enabling the first flap 2 and the second flap 3 to move sequentially. In this embodiment, the first smoke inlet and the second smoke inlet face forward. It should be noted that the descriptions of front, back, left, right, up, and down directions in this embodiment are all relative to the user when the range hood is in use.

[0037] The range hood in this embodiment adopts the above-described structure, enabling the independent opening of the first flap. When the oil fume concentration is low and the cookware is high, only the first flap can be opened, thus avoiding interference between the cookware and the second flap. Therefore, users can choose to open only the first flap or open both the first and second flaps simultaneously according to actual usage conditions. This allows for the independent opening of the first smoke inlet or the opening of the first and second smoke inlets in a certain sequence to adapt to different oil fume concentrations and overall machine settings, improving the adaptability of the range hood to different working conditions and thus enhancing user satisfaction. Furthermore, compared to existing technologies where both the first and second flaps are open, the space occupied is smaller, making it more suitable for use in small kitchens.

[0038] Specifically, the transmission assembly includes a transmission plate assembly and a transmission rod 6. One end of the transmission plate assembly is connected to the inner surface of the first flap 2, and the other end is connected to the transmission rod 6. The end of the transmission rod 6 away from the transmission plate assembly is connected to the second flap 3. The transmission assembly adopts a structure combining the transmission plate assembly and the transmission rod 6, which is simpler in structure and has higher reliability compared to the complex transmission structures in the prior art. The transmission rod 6 can be, but is not limited to, a pull rod.

[0039] The transmission plate assembly includes a first transmission plate 4 and a second transmission plate 5. The first transmission plate 4 is connected to the inner surface of the first flap 2, and the first transmission plate 4 and the second transmission plate 5 are connected by a limiting structure. The first transmission plate 4 can drive the second transmission plate 5 to move through the limiting structure. The second transmission plate 5 is connected to the second flap 3 through a transmission rod 6. The output end of the drive assembly is connected to the first flap 2 to drive the first flap 2 to move. The first flap 2 drives the second transmission plate 5 to move through the first transmission plate 4 and the limiting structure. The second transmission plate 5 drives the second flap 3 to move through the transmission rod 6.

[0040] Specifically, the limiting structure includes a groove disposed on one of the first transmission plate 4 and the second transmission plate 5, and a slider disposed on the other of the first transmission plate 4 and the second transmission plate 5. The groove is provided with a first limiting surface and a second limiting surface. The slider and the groove are slidably engaged. During the outward opening stroke of the first transmission plate 4, the slider can abut against the first limiting surface to drive the second transmission plate 5 to move outward. During the inward closing stroke of the first transmission plate 4, the slider can abut against the second limiting surface to drive the second transmission plate 5 to move inward.

[0041] The slide can be, but is not limited to, an arc-shaped slide, with the first and second limiting surfaces at its two ends along its length. The slider slides within the arc-shaped slide and abuts against the first and second limiting surfaces, respectively. The length of the slide can be designed based on the flip angles of the first flap 2 and the second flap 3.

[0042] To ensure smooth opening of the flap, the center of the arc groove, the rotation center of the first transmission plate 4, and the rotation center of the second transmission plate 5 are aligned.

[0043] In this embodiment, the first flap 2, the first transmission plate 4, and the second transmission plate 5 are all connected to the housing 1 at the same point. This structural arrangement ensures the consistency and stability of the flap assembly's movement. Optionally, the first flap 2, the first transmission plate 4, and the second transmission plate 5 are rotatably connected to the housing 1 via a first hinge 11. The hinge connection method is simple in structure, low in cost, and easy to implement.

[0044] The driving assembly includes a driving unit 7 and a bracket 8. The bracket 8 is fixedly connected to the first flap 2. One end of the driving unit 7 is rotatably connected to the bracket 8, and the other end of the driving unit 7 is connected to the housing 1. As the first flap 2 opens, the driving unit 7 and the bracket 8 rotate relative to each other, allowing the first flap 2 to be driven to flip open outwards while the driving unit 7 remains stationary. In this embodiment, the driving unit 7 is horizontally positioned, and it remains horizontal throughout the opening process of the first flap 2.

[0045] In this embodiment, the transmission assembly further includes a third transmission plate 9. One end of the third transmission plate 9 is connected to the inner surface of the second flap 3, and the other end of the third transmission plate 9 is connected to the transmission rod 6. The drive unit 7 drives the third transmission plate 9 to move through the first transmission plate 4, the second transmission plate 5, and the transmission rod 6, and the third transmission plate 9 drives the second flap 3 to move. In this embodiment, the first transmission plate 4, the second transmission plate 5, and the third transmission plate 9 are all side baffles, i.e., they are set on the left and / or right side of the range hood, and the plate surfaces extend along the front-back direction of the range hood. The first transmission plate 4 and the second transmission plate 5 are set perpendicular to the first flap 2, and the third transmission plate 9 is set perpendicular to the second flap 3.

[0046] To maintain the structural stability of the second transmission plate 5 and prevent it from shaking, the transmission assembly also includes an elastic limiting member 10. One end of the elastic limiting member 10 is connected to the housing 1, and the other end is connected to the second transmission plate 5. Specifically, the elastic limiting member 10 can be, but is not limited to, a tension spring, an electromagnet, or a micro switch. In this embodiment, the elastic limiting member 10 is selected as a tension spring.

[0047] The first flap 2 includes a first flap body and a first decorative panel, with the first decorative panel covering the outer surface of the first flap body. The first flap body can be made of sheet metal with good strength, thus ensuring the overall structural strength of the first flap 2. The first decorative panel can be made of glass, which is not only aesthetically pleasing but also easy to clean. Optionally, the first flap body and the first decorative panel can be fixed together by adhesive.

[0048] Similarly, the second flap 3 includes a second flap body and a second decorative panel, with the second decorative panel covering the outer surface of the second flap body. The second flap body can be made of sheet metal with good strength, thus ensuring the overall structural strength of the second flap 3. The second decorative panel can be made of glass, which is not only aesthetically pleasing but also easy to clean. Optionally, the second flap body and the second decorative panel can be fixed together by adhesive bonding.

[0049] The second flap 3 is connected to the housing 1 via the second hinge 12. Specifically, the body of the second flap is rotatably connected to the housing 1 via the second hinge 12. The hinge connection structure is simple, inexpensive, and easy to implement.

[0050] The drive unit 7 in this embodiment can be a push rod motor, a linear output cylinder, or a linear output motor, etc. A push rod motor is preferred in this embodiment because it has low noise, low energy consumption, and high thrust during use. It should be noted that all mechanisms capable of linear drive are within the scope of protection of this application.

[0051] The working process of the range hood in this embodiment is described below.

[0052] like Figures 1 to 3 As shown, firstly, the drive unit 7 drives the first flap 2 to flip open to a certain angle to a half-open state; the drive unit 7 continues to extend, and the first transmission plate 4 drives the second transmission plate 5 to rotate through the limiting structure. The second transmission plate 5 drives the second flap 3 to flip outward through the transmission rod 6 and the third transmission plate 9 until it is fully open.

[0053] When the range hood is turned off, the drive unit 7 can first drive the first flap 2 to flip and close it at a certain angle, such as... Figure 4 As shown; the push rod of the drive unit 7 continues to retract, causing the first flap 2 to close. At the same time, the first transmission plate 4 drives the second transmission plate 5 to rotate through the limiting structure. The second transmission plate 5 drives the second flap 3 to close through the transmission rod 6 and the third transmission plate 9, as shown. Figure 1 As shown.

[0054] When fully open, the negative pressure area outside the smoke inlet is at its maximum, resulting in the best smoke extraction effect. This corresponds to the high setting of the range hood, making it suitable for cooking activities with heavy smoke. When partially open, the negative pressure area outside the smoke inlet is smaller, resulting in slightly weaker smoke extraction. This corresponds to the low setting of the range hood, making it suitable for cooking activities with less smoke.

[0055] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. For those skilled in the art, based on the concept of this utility model, there will be changes in the specific implementation methods and application scope. The content of this specification should not be construed as a limitation of this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A range hood, characterized in that, include: The housing (1) is provided with a first smoke inlet and a second smoke inlet, and the first smoke inlet is located above the second smoke inlet; The flap assembly includes a first flap (2) and a second flap (3), the first flap (2) and the second flap (3) being rotatably connected to the housing (1) respectively, the first flap (2) being used to close or open the first smoke inlet, and the second flap (3) being used to close or open the second smoke inlet; A drive assembly is disposed inside the housing (1), and the output end of the drive assembly is connected to the first flap (2); as well as, A transmission assembly is disposed between the first flap (2) and the second flap (3), and the transmission assembly enables the first flap (2) and the second flap (3) to move sequentially.

2. The range hood as described in claim 1, characterized in that, The transmission assembly includes a transmission plate assembly and a transmission rod (6). One end of the transmission plate assembly is connected to the inner surface of the first flap (2), and the other end is connected to the transmission rod (6). The end of the transmission rod (6) away from the transmission plate assembly is connected to the second flap (3).

3. The range hood as described in claim 2, characterized in that, The transmission plate assembly includes a first transmission plate (4) and a second transmission plate (5). The first transmission plate (4) is connected to the inner surface of the first flap (2). The first transmission plate (4) and the second transmission plate (5) are connected by a limiting structure. The first transmission plate (4) can drive the second transmission plate (5) to move through the limiting structure. The second transmission plate (5) is connected to the second flap (3) through the transmission rod (6).

4. The range hood as described in claim 3, characterized in that, The limiting structure includes a groove disposed on one of the first transmission plate (4) and the second transmission plate (5), and a slider disposed on the other of the first transmission plate (4) and the second transmission plate (5). The groove is provided with a first limiting surface and a second limiting surface. The slider and the groove are slidably engaged. During the outward opening stroke of the first transmission plate (4), the slider can abut against the first limiting surface to drive the second transmission plate (5) to move outward. During the inward closing stroke of the first transmission plate (4), the slider can abut against the second limiting surface to drive the second transmission plate (5) to move inward.

5. The range hood as described in claim 4, characterized in that, The groove is an arc-shaped groove, and the two ends of the arc-shaped groove along its length are the first limiting surface and the second limiting surface, respectively.

6. The range hood as described in claim 5, characterized in that, The center of the arc groove, the rotation center of the first transmission plate (4), and the rotation center of the second transmission plate (5) coincide.

7. The range hood as described in claim 3, characterized in that, The first flap (2), the first transmission plate (4) and the second transmission plate (5) are respectively connected to the housing (1) at the same point.

8. The range hood according to any one of claims 1-7, characterized in that, The drive assembly includes a drive unit (7) and a bracket (8). The bracket (8) is fixedly connected to the first flap (2). One end of the drive unit (7) is rotatably connected to the bracket (8), and the other end is connected to the housing (1).

9. The range hood as described in claim 2, characterized in that, The transmission assembly also includes a third transmission plate (9), one end of which is connected to the inner surface of the second flap (3), and the other end of which is connected to the transmission rod (6).

10. The range hood as described in claim 3, characterized in that, The transmission assembly also includes an elastic limiting member (10), one end of which is connected to the housing (1) and the other end is connected to the second transmission plate (5).

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