Electric opening and closing structure for movable panel of range hood

Abstract

An electric opening and closing structure for a movable panel of a range hood comprises a main body, the front end of the main body is covered with a fixed panel and the movable panel, the fixed panel is provided with a smoke suction port communicated with an air cabinet arranged at the top of the main body, and when a fan in the air cabinet works, negative pressure is generated, and oil smoke is adsorbed from the smoke suction port; the movable panel is hinged to the main body through a door hinge mechanism, an electric pushing mechanism is arranged between the main body and the movable panel, and the electric pushing mechanism drives the movable panel to move so as to open and close the smoke suction port. The utility model has the beneficial effects that a four-connecting-rod structure is adopted as a hinging mechanism of the movable panel, and the design can provide a stable movement track in the opening and closing process of the panel.

Description

Technical Field

[0001] The utility model relates to a range hood, in particular to an electric opening and closing structure of a movable panel of the range hood. Background Art

[0002] Range hoods are common household appliances in kitchens. Their main function is to absorb and discharge the fumes generated during cooking through the suction force of the fan. In order to improve the aesthetics of the range hood, many modern range hood designs use movable panels to cover the smoke outlet. When in use, the movable panel can be opened electrically or manually to expose the smoke outlet for smoke absorption. When not in use, the movable panel is closed to form an appearance that is flush with the fixed panel, making the range hood more beautiful overall.

[0003] In the prior art, the movable panel usually adopts a single-point hinge structure, that is, the movable panel is hinged to the range hood body through a single hinge. Although this single-point hinge structure is simple, it has several significant disadvantages:

[0004] 1. Large clearance required: Since the movable panel has only one hinge point, the panel moves in a rotating motion when it is opened or closed. In order to ensure that the panel can be opened and closed smoothly, a large clearance must be reserved between the panel and the main body. This design results in a significant gap between the panel and the main body, affecting the overall sealing and visual effect.

[0005] 2. Uneven panel: In the process of opening or closing the panel, the single-point hinged structure relies on only one hinge point, so the various parts of the panel may not remain flat. This will not only cause inconsistent gaps between the panel and the fixed panel after closing, but may also cause the panel to become loose or offset after a period of use, further affecting the aesthetics of the range hood.

[0006] 3. Poor sealing effect: Due to the design limitation of the single-point hinge structure, it is difficult for the movable panel to be completely flush with the fixed panel when closed, resulting in a large gap between the panels. This not only affects the appearance, but also reduces the sealing effect of the range hood, making it easier for oil smoke to leak out, affecting the air quality in the kitchen.

[0007] 4. Poor aesthetics: Due to the need to reserve a large gap for activities, the gap between the movable panel and the fixed panel is more conspicuous, especially in the modern kitchen design that pursues the overall aesthetics of the design, the existence of such a large gap is particularly inconsistent, thus affecting the overall visual beauty. Therefore, it is necessary to make further improvements. Utility Model Content

[0008] The object of the utility model is to overcome the defects of the existing technology and provide an electric opening and closing structure for the movable panel of a range hood, which has a simple structure, is convenient to use, can significantly reduce the gap between the panel and the main body, ensures the stability and flatness when the movable panel opens and closes, and greatly improves the overall aesthetics of the range hood.

[0009] The object of the utility model is achieved in the following way: an electric opening and closing structure for the movable panel of a range hood, which includes a main body, a fixed panel and a movable panel are covered at the front end of the main body. A smoke suction port is opened behind the movable panel and communicated with an air cabinet arranged at the top of the main body. When the fan in the air cabinet works, negative pressure is generated to adsorb oil fumes from the smoke suction port. The movable panel is hinged to the main body through a hinge mechanism, and an electric pushing mechanism is arranged between the main body and the movable panel. The electric pushing mechanism drives the movable panel to move to realize the opening and closing of the smoke suction port.

[0010] The hinge mechanism includes a base fixed on the main body and a hinge seat fixed on the movable panel. A first hinge hole is arranged on the base and a first connecting rod is hinged and installed. The other end of the first connecting rod is hinged to the second hinge hole of the hinge seat. A third hinge hole is also arranged on the base and hinged to a second connecting rod. The other end of the second connecting rod is hinged to the fourth hinge hole on the hinge seat. The first connecting rod and the second connecting rod swing relative to the base and the hinge to realize the opening and closing of the movable panel.

[0011] Further: the hinge seat includes a connecting part and an installation part distributed in a "7" shape. The second hinge hole is arranged on the connecting part, and the fourth hinge hole is arranged at the junction of the connecting part and the installation part.

[0012] Further: the first connecting rod and the second connecting rod are arranged on the same side of the hinge seat and the base for hinging.

[0013] Further: the base includes a fixing part connected to the main body and a hinge part, and the fixing part and the hinge part are distributed in an "L" shape. The first hinge hole and the third hinge hole are arranged on the hinge part.

[0014] Further: a limiting groove is arranged on the side of the second connecting rod facing the first connecting rod. When the hinge seat is opened to a set angle, the limiting groove presses on the first connecting rod to limit the maximum opening angle of the hinge seat.

[0015] Further: the electric pushing mechanism includes a reduction motor and a telescopic lead screw driven by it. One end of the reduction motor is installed on the main body, and one end of the telescopic lead screw is connected to the movable panel.

[0016] Further: the reduction motor is provided with a motor seat connected to the main body, and a push rod seat is arranged on the back of the movable panel. The push rod seat is hinged to the top of the telescopic lead screw.

[0017] The beneficial effects of the present utility model are as follows: 1. The structure is simple, the production cost is low, and the market competitiveness is improved. 2. The present utility model adopts a four-bar linkage structure as the hinge mechanism of the movable panel. This design can provide a smooth movement trajectory during the opening and closing of the panel. Different from the traditional single-point hinge structure, when the panel is opened or closed, the four-bar linkage structure will generate an outward pushing action, so that there is a certain distance between the movable panel and the main body and the fixed panel during the opening and closing process, thus avoiding mutual collision or friction. This design not only improves the smoothness of the opening and closing process, but also effectively avoids panel damage caused by collision, and prolongs the service life of the product.

[0018] 3. Since the four-bar linkage structure can appropriately push the panel away from the main body and the fixed panel when the panel is opened and closed, this characteristic significantly reduces the risk of the panel colliding with other components during movement. Especially in the final stage of panel closing or the initial stage of opening, it avoids potential safety hazards caused by violent collision. This design makes the opening and closing of the movable panel more gentle and safe, and further improves the user experience of the product.

[0019] 4. The four-bar linkage structure can not only push the panel away to avoid impact, but also maintain the accuracy of its movement trajectory throughout the opening and closing process of the panel. Compared with the traditional single-point hinge design, the four-bar linkage structure can effectively control the movement path of the panel, ensuring that the panel can closely fit the fixed panel when closed, and will not cause uneven gaps or incomplete closing due to position deviation. This not only improves the overall aesthetics of the range hood, but also enhances its sealing performance.

[0020] 5. Due to the pushing action of the four-bar linkage structure, there is no need to reserve a large gap during the opening and closing process of the movable panel to avoid direct contact with the main body and the fixed panel. This enables the gap between the panel and the main body to be designed extremely small when the panel is in the closed state, thereby improving the overall appearance flatness and aesthetics of the range hood. Users can enjoy a more harmonious and unified visual effect during daily use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic structural diagram of the movable panel in the closed state in the present utility model.

[0022] Figure 2 It is a schematic structural diagram of the movable panel in the open state in the present utility model.

[0023] Figure 3 It is a schematic structural diagram after hiding the main body in the present utility model.

[0024] Figure 4 It is in the present utility model Figure 3 partial enlarged structural view.

[0025] Figure 5 This is a schematic diagram of the door hinge mechanism of the present utility model in the closed state.

[0026] Figure 6 This is a schematic diagram of the door hinge mechanism of the present utility model in the open state.

[0027] Figure 7 This is an assembly drawing of the door hinge mechanism of the present utility model. Specific embodiments

[0028] The following further describes the present utility model in detail with reference to the accompanying drawings. An electric opening and closing structure for a movable panel of a range hood includes a main body 1, a fixed panel 2 and a movable panel 3 are covered at the front end of the main body 1. A smoke suction port 4 is opened behind the movable panel (3) and is communicated with an air cabinet 5 arranged at the top of the main body 1. When the fan in the air cabinet 5 works, negative pressure is generated to adsorb oil fumes from the smoke suction port 4. The movable panel 3 is hinged to the main body 1 through a door hinge mechanism, and an electric pushing mechanism is arranged between the main body 1 and the movable panel 3. The electric pushing mechanism drives the movable panel 3 to move to open and close the smoke suction port 4;

[0029] The door hinge mechanism includes a base 6 fixed on the main body 1 and a hinge seat 7 fixed on the movable panel 3; a first hinge hole 61 is arranged on the base 6 and a first connecting rod 8 is hingedly installed, and the other end of the first connecting rod 8 is hinged to a second hinge hole 71 of the hinge seat 7; a third hinge hole 62 is also arranged on the base 6 and is hinged to a second connecting rod 9, and the other end of the second connecting rod 9 is hinged to a fourth hinge hole 72 on the hinge seat 7. The first connecting rod 8 and the second connecting rod 9 swing relative to the base 6 and the hinge to realize the opening and closing of the movable panel 3.

[0030] Further: The hinge seat 7 includes a connecting portion 73 and an installation portion 74 distributed in a "7" shape. The second hinge hole 71 is arranged on the connecting portion 73, and the fourth hinge hole 72 is arranged at the junction of the connecting portion 73 and the installation portion 74.

[0031] Further: The first connecting rod 8 and the second connecting rod 9 are arranged on the same side of the hinge seat 7 and the base 6 for hinging.

[0032] Further: The base 6 includes a fixing portion 63 connected to the main body 1 and a hinge portion 64. The fixing portion 63 and the hinge portion 64 are distributed in an "L" shape. The first hinge hole 61 and the third hinge hole 62 are arranged on the hinge portion 64.

[0033] Further: A limiting groove 91 is arranged on one side of the second connecting rod 9 facing the first connecting rod 8. When the hinge seat 7 is opened to a set angle, the limiting groove 91 presses against the first connecting rod 8 to limit the maximum opening angle of the hinge seat 7.

[0034] Furthermore, the electric push mechanism includes a reduction motor 10 and a telescopic lead screw 11 driven by the reduction motor 10. One end of the reduction motor 10 is mounted on the main body 1, and one end of the telescopic lead screw 11 is connected to the movable panel 3.

[0035] Furthermore, the reduction motor 10 is provided with a motor base 12 connected to the main body 1. A push rod base 13 is provided on the back of the movable panel 3, and the push rod base 13 is hinged to the top of the telescopic lead screw 11.

[0036] Working principle: The present utility model provides an electric opening and closing structure for the movable panel of an oil fume extractor. The core lies in the combination of a four-bar linkage structure and an electric push mechanism to achieve the smooth opening and closing of the movable panel, thereby enhancing the user experience and aesthetics of the oil fume extractor.

[0037] Among them, the electric opening and closing structure for the movable panel of the oil fume extractor mainly includes a main body, a fixed panel, a movable panel, a four-bar linkage structure of a hinge mechanism, and an electric push mechanism. Specifically:

[0038] The main body 1 is the main frame structure of the oil fume extractor. The fixed panel 2 covers the front end of the main body and is provided with a smoke suction port 4. The movable panel is hinged to the main body through a hinge mechanism and can be opened and closed under the drive of the electric push mechanism. Among them, the hinge mechanism is composed of a base 6 fixed on the main body and a hinge seat 7 fixed on the movable panel, and is hinged to the base and the hinge seat through a first connecting rod 8 and a second connecting rod 9, thus forming a four-bar linkage structure.

[0039] Among them, the electric push mechanism includes a reduction motor 10 and a telescopic lead screw 11. The reduction motor is fixedly installed on the main body, and one end of the telescopic lead screw is connected to the movable panel.

[0040] When the user starts the oil fume extractor through the control system, the reduction motor 10 starts to work, driving the telescopic lead screw 11 to extend or contract. The telescopic lead screw is connected to the movable panel 3 through the push rod base 13, so the movement of the lead screw directly drives the opening and closing of the movable panel.

[0041] When the reduction motor starts and drives the telescopic lead screw to extend outwards, the push rod base drives the movable panel to move along the trajectory set by the four-bar linkage structure. Due to the special design of the four-bar linkage structure, the movable panel not only rotates around the hinge point but also generates an outward pushing action during the opening and closing process. This pushing action ensures that the movable panel gradually moves away from the fixed panel and the main body during the opening process, effectively avoiding direct contact and collision between the panel and the main body or the fixed panel.

[0042] When the reduction motor runs in reverse, the telescopic lead screw contracts, and the movable panel returns to the closed position along a predetermined trajectory under the action of the four-bar linkage structure. Due to the precise control of the four-bar linkage structure, the movable panel can be flush with the fixed panel and the main body when closed, ensuring a tight fit of the panel. This design not only ensures the minimum gap between the panel and the main body, thus enhancing the sealing effect of the range hood, but also greatly improves the aesthetic appearance.

[0043] Compared with the traditional technology, the design of the four-bar linkage structure provides an outward pushing action when the panel opens and closes, enabling the movable panel to always maintain an appropriate distance from the main body and the fixed panel during the movement. This design effectively avoids the direct collision between the panel and the main body or the fixed panel, prevents the panel damage that may be caused by impact, and extends the service life of the range hood.

[0044] In addition, the four-bar linkage structure can provide more stable support, ensuring that the movable panel maintains a stable movement trajectory throughout the opening and closing process, and avoiding the tilting or swinging phenomenon that may occur in the panel of the traditional single-point hinge structure. The precise movement trajectory not only improves the smoothness of the panel opening and closing, but also ensures that the panel can be tightly fitted with the main body and the fixed panel when closed, guaranteeing the overall sealing and aesthetic appearance of the product.

[0045] Furthermore: Through the optimized design of the four-bar linkage structure, the movable panel can be highly consistent with the main body and the fixed panel in the closed state, greatly reducing the gap between the panel and the main body, and improving the overall aesthetic degree of the range hood. At the same time, the minimized gap design effectively improves the sealing performance of the range hood, prevents oil fume from overflowing, and improves the adsorption efficiency of oil fume.

[0046] The electric opening and closing structure of the movable panel of the range hood of the present utility model combines a delicate four-bar linkage structure with an electric driving mechanism, not only realizing the smooth opening and closing of the movable panel, but also effectively avoiding the impact problem that may occur during the opening and closing of the panel, improving the durability and aesthetic appearance of the product. Therefore, it can be widely promoted and used.

[0047] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed.

Claims

1. An electric opening and closing structure for the movable panel of an oil fume extractor, which comprises a main body (1). The front end of the main body (1) is covered with a fixed panel (2) and a movable panel (3). A smoke suction port (4) is provided at the rear of the movable panel (3) and is communicated with a wind cabinet (5) arranged at the top of the main body (1). When the fan in the wind cabinet (5) works, negative pressure is generated to adsorb oil fume from the smoke suction port (4). It is characterized in that: The described movable panel (3) is hinged to the main body (1) through a hinge mechanism, and an electric push mechanism is arranged between the main body (1) and the movable panel (3). The electric push mechanism drives the movable panel (3) to move to open and close the smoking port (4). The described hinge mechanism includes a base (6) fixed on the main body (1) and a hinge seat (7) fixed on the movable panel (3); a first hinge hole (61) is arranged on the base (6) and a first connecting rod (8) is hingedly installed. The other end of the first connecting rod (8) is hinged to the second hinge hole (71) of the hinge seat (7); a third hinge hole (62) is also arranged on the base (6) and is hinged to a second connecting rod (9). The other end of the second connecting rod (9) is hinged to the fourth hinge hole (72) on the hinge seat (7). The first connecting rod (8) and the second connecting rod (9) swing relative to the base (6) and the hinge to realize the opening and closing of the movable panel (3).

2. The electric opening and closing structure of the movable panel of an oil fume machine according to claim 1, wherein: The described hinge seat (7) includes a connecting part (73) and an installation part (74) distributed in a "7" shape. The second hinge hole (71) is arranged on the connecting part (73), and the fourth hinge hole (72) is arranged at the junction of the connecting part (73) and the installation part (74).

3. The electric opening and closing structure of the movable panel of an oil fume extractor according to claim 1, characterized in that: The described first connecting rod (8) and the second connecting rod (9) are arranged on the same side of the hinge seat (7) and the base (6).

4. The electric opening and closing structure of the movable panel of a range hood according to claim 1, characterized in that: The described base (6) includes a fixing part (63) connected to the main body (1) and a hinge part (64). The fixing part (63) and the hinge part (64) are distributed in an "L" shape. The first hinge hole (61) and the third hinge hole (62) are arranged on the hinge part (64).

5. The electric opening and closing structure of the movable panel of a range hood according to claim 1, characterized in that: A limiting groove (91) is arranged on one side of the second connecting rod (9) facing the first connecting rod (8). When the hinge seat (7) is opened to a set angle, the limiting groove (91) presses against the first connecting rod (8) to limit the maximum opening angle of the hinge seat (7).

6. The electric opening and closing structure of the movable panel of a range hood according to claim 1, characterized in that: The described electric push mechanism includes a reduction motor (10) and a telescopic lead screw (11) driven by it. One end of the reduction motor (10) is installed on the main body (1), and one end of the telescopic lead screw (11) is connected to the movable panel (3).

7. The electric opening and closing structure of the movable panel of a range hood according to claim 6, characterized in that: The described reduction motor (10) is provided with a motor base (12) connected to the main body (1). A push rod seat (13) is arranged on the back of the movable panel (3), and the push rod seat (13) is hinged to the top of the telescopic lead screw (11).

Images