Intelligent range hood with cover linkage mechanism

Abstract

The utility model discloses a kind of intelligent range hood with cover linkage mechanism, comprising: smoke extractor main body, inside is formed with installation cavity, fan is arranged in installation cavity;Smoke outlet, it is formed on smoke extractor main body and is communicated with installation cavity;Cover, it is movably arranged on smoke outlet, its diameter is less than the diameter of smoke outlet, gap is formed between the edge of cover and smoke outlet;Linkage mechanism, transmission connection with cover, for driving cover opening and closing;Semicircular ring oil blocking component, it is connected to the lower half circumference area of cover by at least three circumferentially distributed elastic adjusting units;Semicircular ring oil blocking component can be adjusted the size of gap according to airflow pressure by elastic adjusting unit.The utility model provides a kind of intelligent range hood with cover linkage mechanism, when severe cooking, semicircular ring oil blocking component moves downwards, the gap between semicircular ring oil blocking component and the inner wall of smoke outlet reduces, enhances sealing property, reduces oil fume leakage.

Description

Technical Field

[0001] This utility model particularly relates to an intelligent range hood with a cover plate linkage mechanism. Background Technology

[0002] In the kitchen, the range hood, as an essential kitchen appliance, primarily functions to remove cooking fumes to maintain clean air and provide a comfortable cooking environment. Existing range hoods consist of a main body and a cover. The range hood has an extraction vent, and the cover is connected to a drive mechanism that opens and closes the cover. When the cover is closed, an annular gap exists between the cover's perimeter and the extraction vent, allowing a small amount of air to flow in, balancing the internal and external air pressure difference and ensuring the cover can open and close properly. However, this annular gap causes some leakage of cooking fumes. Especially during heavy cooking (such as frying and stir-frying), the amount of fumes is larger and the particles are heavier. Increased leakage through the annular gap affects the range hood's extraction efficiency, leading to a pervasive cooking fume environment in the kitchen, impacting air quality and harming the user's health. Utility Model Content

[0003] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes an intelligent range hood with a cover plate linkage mechanism.

[0004] A smart range hood with a cover plate linkage mechanism includes: The main body of the smoke extractor has an internal mounting cavity, and a fan is installed inside the mounting cavity; The smoke extraction port is formed on the main body of the smoke extractor and communicates with the mounting cavity; A cover plate is movably mounted on the smoke extraction port, and its diameter is smaller than the diameter of the smoke extraction port. A gap is formed between the edge of the cover plate and the smoke extraction port. The linkage mechanism is connected to the cover plate drive and is used to drive the cover plate to open and close. A semi-circular oil baffle assembly is connected to the lower semi-circular area of ​​the cover plate by at least three circumferentially distributed elastic adjustment units; the elastic adjustment units enable the semi-circular oil baffle assembly to adjust the size of the gap according to the airflow pressure.

[0005] Preferably, the elastic adjustment unit includes: The mounting base is fixed to the edge of the cover plate; The movable rod is connected at one end to the semi-circular oil baffle assembly, and at the other end it slides through the fixed seat; A return spring is sleeved on the movable rod, with its two ends abutting against the fixed seat and the semi-circular oil baffle assembly, respectively; When the fan starts, the airflow pressure overcomes the spring force of the reset spring and pushes the semi-circular oil baffle assembly to move.

[0006] Preferably, the semi-circular annular oil baffle assembly includes: The ring-shaped base is made of stainless steel. A sealing lip covers the outer edge of the annular base. The sealing lip maintains a gap of 1-3 mm with the inner wall of the smoke extraction port under normal conditions.

[0007] Preferably, the lower end of the cover plate is provided with a detachable oil receiving box, the top opening of which forms an oil receiving groove; used to receive oil dripping from the cover plate and the semi-circular oil blocking assembly.

[0008] Preferably, the linkage mechanism includes: Fixed slide rails are fixedly installed on the main body of the range hood; The bracket is fixedly connected to the back of the cover plate, and has movable slide rails on both sides that cooperate with the fixed slide rail; The drive cylinder has its cylinder body fixed to the main body of the smoke extractor, and the piston rod end is connected to the bracket through a universal joint. The drive cylinder pushes the bracket to make the movable slide rail slide along the fixed slide rail, thereby driving the cover plate to achieve translational opening and closing movement.

[0009] Preferably, each movable slide rail is provided with a mounting plate, a crossbar is fixedly mounted on the mounting plate, the bracket is provided with a guide groove, the crossbar passes through the guide groove, and the bracket and the mounting plate are fixedly connected by locking bolts.

[0010] The beneficial effects of this utility model are: This utility model provides an intelligent range hood with a cover linkage mechanism. Through the setting of an elastic adjustment unit, it achieves adaptive adjustment of the gap between the semi-circular oil-blocking component and the inner wall of the smoke extraction outlet. During heavy cooking, the semi-circular oil-blocking component moves downward, reducing the gap between it and the inner wall of the smoke extraction outlet, enhancing sealing and reducing oil fume leakage. During light cooking, the lower gap between the semi-circular oil-blocking component and the inner wall of the smoke extraction outlet increases, reducing airflow resistance and ensuring air circulation in the kitchen. Combined with the precise control of the cover's sliding opening and closing by the linkage mechanism, this design effectively improves the adaptability and intelligence level of the range hood, significantly improves kitchen air quality, and creates a healthier and cleaner cooking environment for users. Attached Figure Description

[0011] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the structure of an intelligent range hood with a cover plate linkage mechanism according to this application. Figure 1 ; Figure 2 This is a schematic diagram of the structure of an intelligent range hood with a cover plate linkage mechanism according to this application. Figure 2 ; Figure 3 For the purposes of this application Figure 2 A magnified view of part A in the image.

[0012] Figure 4 This is a schematic diagram of the structure of an intelligent range hood with a cover plate linkage mechanism according to this application. Figure 3 . Detailed Implementation

[0013] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0014] The orientation shown in the accompanying drawings should not be construed as limiting the specific protection scope of this utility model, but is only for reference and understanding of preferred embodiments. The product components shown in the drawings can be changed in position, increased in number, or simplified in structure.

[0015] The “connection” described in the specification and the “connection” relationship between the components shown in the accompanying drawings can be understood as a fixed connection, a detachable connection, or a connection that forms an integral unit; it can be a direct connection or a connection through an intermediate medium. Those skilled in the art can understand the connection relationship according to the specific circumstances and can derive different implementation methods such as screwing, riveting, soldering, snap-fitting, or embedding to suitably replace it.

[0016] The directional terms such as up, down, left, right, top, and bottom mentioned in the instruction manual and the directions shown in the attached drawings indicate that the components can directly contact each other or contact each other through other features; for example, "up" can mean directly above or diagonally above, or it simply means above other objects; other directions can be understood by analogy.

[0017] The materials used to manufacture solid-shaped parts as shown in the specification and drawings may be metallic, non-metallic, or other synthetic materials. The machining processes used for solid-shaped parts may include stamping, forging, casting, wire cutting, laser cutting, injection molding, CNC milling, 3D printing, machining, etc. Those skilled in the art may adapt or combine the above materials and manufacturing processes according to different processing conditions, costs, and precision requirements.

[0018] The working principle of this utility model is as follows: A smart range hood with a cover plate linkage mechanism includes a range hood body 1, which has an installation cavity 11 inside, and a fan 12 is installed in the installation cavity 11. The smoke extraction port 2 is formed on the main body 1 of the smoke extractor and is connected to the mounting cavity 11; A cover plate 3 is movably mounted on the smoke extraction port 2, and its diameter is smaller than the diameter of the smoke extraction port 2. A gap is formed between the edge of the cover plate 3 and the smoke extraction port 2. The linkage mechanism is connected to the cover plate 3 for driving the cover plate 3 to open and close; The semi-circular oil baffle assembly 5 is connected to the lower semi-circular area of ​​the cover plate 3 by at least three circumferentially distributed elastic adjustment units 6; the elastic adjustment units 6 enable the semi-circular oil baffle assembly 5 to adaptively adjust the size of the gap according to the airflow pressure.

[0019] As in Embodiment 1, the elastic adjustment unit 6 includes a fixed seat 61 fixed to the edge of the cover plate 3, a movable rod 62 with one end connected to the semi-circular oil baffle assembly 5 and the other end slidably passing through the fixed seat 61; a return spring 63 is sleeved on the movable rod 62, with its two ends abutting against the fixed seat 61 and the semi-circular oil baffle assembly 5 respectively; when the fan 12 is started, the airflow pressure overcomes the elastic force of the return spring 63 and pushes the semi-circular oil baffle assembly 5 to move, thereby adjusting the gap between the semi-circular oil baffle assembly 5 and the smoke extraction port 2.

[0020] Its structural fit principle is as follows: The fixed base 61 is fixed to the edge of the cover plate 3, serving as the supporting foundation for the entire elastic adjustment unit and providing guidance for the movable rod 62. One end of the movable rod 62 is connected to the semi-circular oil-blocking assembly 5, and the other end slides through the fixed base 61. The return spring 63 is sleeved on the movable rod 62, with its two ends abutting against the semi-circular oil-blocking assembly 5 and the fixed base 61 respectively, providing elastic support. When the fan starts and generates negative pressure, the airflow pressure acts on the semi-circular oil-blocking assembly 5, overcoming the elastic force of the return spring 63 and pushing the semi-circular oil-blocking assembly 5 downward. When the semi-circular oil-blocking assembly 5 moves downward, the gap between the sealing lip 52 at the lower end of the semi-circular oil-blocking assembly 5 and the inner wall of the smoke outlet 2 decreases. Most of the oil fumes enter the range hood through this narrower gap. This design is mainly for heavy cooking such as frying and stir-frying, where the amount of oil fumes is large and the particles are heavy. In this case, better sealing and smoke extraction are required. Through the action of the elastic adjustment unit 6, the semi-circular oil-blocking assembly 5 moves downward, reducing the gap between the sealing lip 52 at the lower end of the semi-circular oil-blocking assembly 5 and the inner wall of the smoke extraction port 2. This effectively prevents oil fumes from leaking from the lower edge of the smoke extraction port 2 and ensures that most of the oil fumes are effectively extracted. (When the semi-circular oil-blocking assembly 5 moves downward, the gap between the sealing lip 52 and the inner wall of the smoke extraction port 2 decreases, while the gap between the upper end of the cover and the smoke extraction port remains unchanged. In this case, since the main flow direction of the oil fumes is downward, the gap between the sealing lip 52 and the inner wall of the smoke extraction port 2 is still the main channel for oil fumes to enter the range hood. A small amount of oil fumes will leak from the gap between the upper end of the cover and the smoke extraction port, but due to the movement trend of the oil fumes themselves and the guiding effect of the airflow, the leakage amount will be very small.) When light cooking such as boiling or steaming is performed, the amount of oil fumes is relatively small, and the required suction airflow pressure is correspondingly reduced. The gap between the sealing lip 52 and the inner wall of the smoke extraction port 2 increases as the return spring 63 recovers its deformation. This increased gap can significantly reduce airflow resistance, allowing oil fumes and water vapor to enter the range hood more smoothly, thereby optimizing the smoke extraction effect in light cooking scenarios.

[0021] Based on the above technical solution, the semi-circular oil-blocking component 5 includes: an annular base 51, made of stainless steel, which has good corrosion resistance and strength; a sealing lip 52, which covers the outer edge of the annular base 51; the sealing lip 52 maintains an initial gap of 1-3mm with the inner wall of the smoke outlet 2 under normal conditions, which can ensure that oil droplets will not easily splash out.

[0022] To facilitate the collection of dripping oil, a detachable oil collection box 8 is provided at the lower end of the cover plate 3. The top opening of the oil collection box 8 forms an oil collection groove 82, which is used to receive the oil dripping from the cover plate 3 and the semi-circular oil blocking assembly 5.

[0023] Based on the above technical solution, the linkage mechanism includes: a fixed slide rail 41, fixedly installed on the main body 1 of the range hood; a bracket 42, fixedly connected to the back of the cover plate 3, with movable slide rails 43 on both sides that cooperate with the fixed slide rail 41; and a drive cylinder, the cylinder body of which is fixed to the main body 1 of the range hood, and the piston rod end connected to the bracket 42 through a universal joint. The drive cylinder pushes the bracket 42 to make the movable slide rail 43 slide along the fixed slide rail 41, thereby driving the cover plate 3 to achieve a translational opening and closing movement. When it is necessary to open the cover plate 3, the piston rod of the drive cylinder extends outward under the action of air pressure or other power source. The extension of the piston rod transmits the thrust to the bracket 42 through the universal joint 45, and the bracket 42 drives the movable slide rail 43 to slide along the fixed slide rail 41. With the cooperation of the movable slide rail 43 and the fixed slide rail 41, the cover plate 3 smoothly moves in the opening direction along the predetermined track, and the smoke extraction port 2 is gradually opened, allowing the oil fumes to smoothly enter the interior of the range hood.

[0024] Based on the above technical solution, each movable slide rail 43 is provided with a mounting plate 44, and a crossbar 440 is fixedly mounted on the mounting plate 44. The bracket 42 is provided with a guide groove 45, and the crossbar 440 passes through the guide groove 45. The bracket 42 and the mounting plate 44 are fixedly connected by locking bolts. Through the cooperation of the crossbar 440 and the guide groove 45, the movement of the bracket 42 is more stable, avoiding possible shaking or deviation during sliding, thereby ensuring smoother translational opening and closing movement of the cover plate 3.

[0025] This utility model provides an intelligent range hood with a cover plate linkage mechanism. Through the elastic adjustment unit 6, it achieves adaptive adjustment of the gap between the semi-circular oil-blocking component 5 and the inner wall of the smoke extraction port 2. During heavy cooking, the semi-circular oil-blocking component 5 moves downward, reducing the gap between it and the inner wall of the smoke extraction port 2, enhancing sealing and reducing oil fume leakage. During light cooking, the lower gap between the semi-circular oil-blocking component 5 and the inner wall of the smoke extraction port 2 increases, reducing airflow resistance and ensuring air circulation in the kitchen. Combined with the precise control of the cover plate 3's sliding opening and closing by the linkage mechanism, this design effectively improves the adaptability and intelligence of the range hood, significantly improves kitchen air quality, and creates a healthier and cleaner cooking environment for users.

[0026] Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art that various changes or modifications can be made to the present invention without departing from the principles and spirit of the present invention as defined by the claims. Therefore, the detailed description of the embodiments in this disclosure is for explanation only and not for limiting the present invention, but rather the scope of protection is defined by the content of the claims.

Claims

1. A smart range hood with a cover plate linkage mechanism, characterized in that, include: The main body of the smoke extractor (1) has an installation cavity (11) inside, and a fan (12) is installed in the installation cavity (11). The smoke extraction port (2) is formed on the main body (1) of the smoke extractor and communicates with the mounting cavity (11); A cover plate (3) is movably mounted on the smoke extraction port (2), and its diameter is smaller than that of the smoke extraction port (2). A gap is formed between the edge of the cover plate (3) and the smoke extraction port (2). The linkage mechanism is connected to the cover plate (3) for driving the cover plate (3) to open and close; The semi-circular oil baffle assembly (5) is connected to the lower semi-circular area of ​​the cover plate (3) by at least three circumferentially distributed elastic adjustment units (6); the elastic adjustment units (6) enable the semi-circular oil baffle assembly (5) to adjust the size of the gap according to the airflow pressure.

2. The intelligent range hood with a cover plate linkage mechanism according to claim 1, characterized in that, The elastic adjustment unit (6) includes: The fixing seat (61) is fixed to the edge of the cover plate (3); The movable rod (62) is connected at one end to the semi-circular oil baffle assembly (5), and the other end is slidably inserted into the fixed seat (61). The return spring (63) is sleeved on the movable rod (62), and its two ends abut against the fixed seat (61) and the semi-circular oil baffle assembly (5) respectively. When the fan (12) starts, the airflow pressure overcomes the elastic force of the reset spring (63) and pushes the semi-circular oil baffle assembly (5) to move.

3. The intelligent range hood with a cover plate linkage mechanism according to claim 1, characterized in that, The semi-circular annular oil baffle assembly (5) includes: The annular base (51) is made of stainless steel. The sealing lip (52) covers the outer edge of the annular base (51); The sealing lip (52) maintains a gap of 1-3 mm with the inner wall of the smoke extraction port (2) under normal conditions.

4. The intelligent range hood with a cover plate linkage mechanism according to claim 1, characterized in that, The lower end of the cover plate (3) is provided with a detachable oil receiving box (8), the top opening of the oil receiving box (8) forming an oil receiving groove (82); used to receive oil dripping from the cover plate (3) and the semi-circular oil blocking assembly (5).

5. The intelligent range hood with a cover plate linkage mechanism according to claim 1, characterized in that, The linkage mechanism includes: Fixed slide rail (41) is fixedly installed on the main body (1) of the smoke extractor; The bracket (42) is fixedly connected to the back of the cover plate (3), and its two sides are provided with movable slide rails (43) that cooperate with the fixed slide rail (41). The drive cylinder has its cylinder body fixed to the main body of the smoke extractor (1), and the piston rod end is connected to the bracket (42) through a universal joint; The drive cylinder pushes the bracket (42) to make the movable slide rail (43) slide along the fixed slide rail (41), thereby driving the cover plate (3) to achieve translational opening and closing movement.

6. The intelligent range hood with a cover plate linkage mechanism according to claim 5, characterized in that, Each movable slide rail (43) is provided with a mounting plate (44), and a crossbar (440) is fixedly provided on the mounting plate (44). The bracket (42) is provided with a guide groove (45), and the crossbar (440) passes through the guide groove (45). The bracket (42) and the mounting plate (44) are fixedly connected by locking bolts.

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