A smoke machine

Abstract

The utility model discloses a kind of range hood, including range hood main body, range hood main body has suction panel, and suction panel is equipped with suction port;Flap assembly, flap assembly is equipped in the back side of suction panel, and flap assembly includes drive structure and flap, and drive structure is used to drive flap rotation, to make flap open or close suction port.The range hood of the utility model can close suction port, improve aesthetic degree.

Description

Technical Field

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

[0002] In the existing technology, range hoods draw in and exhaust fumes through air inlets. The air inlets of range hoods are normally open, and users can see the internal structure of the range hood through the air inlets, which will affect the aesthetics of the range hood to some extent. Utility Model Content

[0003] The purpose of this utility model is to provide a range hood that solves the above-mentioned technical problems.

[0004] The range hood includes a main body, which has an air intake panel and an air intake vent.

[0005] The flap assembly is located on the rear side of the air intake panel. The flap assembly includes a drive structure and a flap. The drive structure is used to drive the flap to rotate so that the flap opens or closes the air intake.

[0006] According to one embodiment of the present invention, the driving structure can drive the flap to open at any angle, and the gap between the flap and the upper edge of the air inlet forms an effective air inlet for the range hood.

[0007] According to one embodiment of the present invention, the upper edge of the flap extends with a guide plate, which is inclined backward from bottom to top.

[0008] According to one embodiment of the present invention, a first air guide ring and a second air guide ring are provided around the edge of the air intake. The first air guide ring is constricted, one end of the first air guide ring is connected to the air intake, and the other end of the first air guide ring is connected to the second air guide ring. The second air guide ring is flared.

[0009] According to one embodiment of the present invention, an oil receiving plate extends forward from the lower end of the flap, and the oil receiving plate is located below the second air guide ring. The projection of the portion of the second air guide ring located below the air intake falls into the oil receiving plate.

[0010] According to one embodiment of the present invention, the driving structure includes a drive motor and a connecting rod. The output end of the drive motor is connected to a swing arm, the output end of the swing arm is connected to the input end of the connecting rod, the back of the flip plate is connected to a flip plate seat, and the output end of the connecting rod is connected to the flip plate seat.

[0011] According to one embodiment of the present invention, the flip-plate assembly further includes a mounting plate, and the drive motor is mounted on the mounting plate via a motor bracket.

[0012] According to one embodiment of the present invention, the flap assembly further includes a flap bracket, which is located on the rear side of the suction panel. There are two flap brackets, which are located on both sides of the flap, and the two ends of the flap are rotatably connected to the flap bracket.

[0013] According to one embodiment of the present invention, the flip-plate bracket is mounted on the mounting plate.

[0014] According to one embodiment of the present invention, an oil receiving plate extends forward from the lower end of the flip plate, and rotating connecting parts extend downward from both sides of the oil receiving plate. The flip plate bracket is provided with a support plate corresponding to the rotating connecting parts, and the rotating connecting parts are rotatably connected to the support plate.

[0015] Compared with the prior art, the smoke hood of this utility model has the following advantages:

[0016] The range hood of this utility model has a drive structure located on the back of the suction panel that can drive a flap to rotate, so that the flap can close or open the air intake on the suction panel. By closing the air intake through the flap, the user cannot view the internal structure of the range hood through the air intake, thus ensuring the overall aesthetics of the range hood. At the same time, the drive structure can open the flap to any angle, changing the size of the effective air inlet of the range hood formed by the gap between the flap and the upper edge of the air intake, thereby adjusting the air volume, controlling the amount of oil fumes drawn in and out, and adapting to different amounts and flow conditions of oil fumes. Attached Figure Description

[0017] Figure 1 This is a front view of the smoke hood of this utility model;

[0018] Figure 2 This is an isometric drawing of the entire smoke hood of this utility model;

[0019] Figure 3 For the present utility model Figure 2 Enlarged view of section A in the middle;

[0020] Figure 4 This is an isometric view of the flap assembly of this utility model;

[0021] Figure 5 This is an exploded view of the flap assembly of this utility model;

[0022] Figure 6 This is a first sectional view of the present invention, showing the flap in the open state;

[0023] Figure 7 For the present utility model Figure 6 Enlarged view of section B;

[0024] Figure 8 For the present utility model Figure 7Enlarged view of section C;

[0025] Figure 9 The second sectional view of this utility model shows the flap in the closed state;

[0026] Figure 10 For the present utility model Figure 9 Enlarged view of section D in the middle;

[0027] Figure 11 For the present utility model Figure 10 Enlarged view of section E in the middle.

[0028] In the diagram: 1. Main body of the range hood; 11. Suction panel; 111. Suction port; 112. First air guide ring; 113. Second air guide ring; 2. Flip plate assembly; 21. Drive structure; 211. Drive motor; 212. Connecting rod; 213. Swing rod; 214. Motor bracket; 22. Flip plate; 221. Air guide plate; 222. Oil receiving plate; 223. Flip plate base; 224. Rotating connection part; 23. Mounting plate; 24. Flip plate bracket; 241. Support base plate.

[0029] The implementation and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0030] The following drawings will disclose several embodiments of this utility model. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0031] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0032] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0033] To further understand the content, features, and effects of this utility model, the following embodiments are provided, and detailed descriptions are given below in conjunction with the accompanying drawings:

[0034] This utility model discloses a smoke hood. Please refer to [link / reference]. Figures 1 to 11 ,include:

[0035] The range hood body 1 has a suction panel 11 and a suction port 111 on the suction panel 11.

[0036] Flip plate assembly 2 is located on the rear side of the suction panel 11. Flip plate assembly 2 includes a drive structure 21 and a flip plate 22. The drive structure 21 is used to drive the flip plate 22 to rotate so that the flip plate 22 opens or closes the suction port 111.

[0037] The range hood body 1 is mounted on the wall, with its rear side (back) abutting against the wall. It faces downwards toward the stove opening and forwards toward the opening, creating a user operating space. In this embodiment, the air intake 111 is horizontally oriented through the air intake panel 11, meaning that the air intake 111 is directly opposite the user, allowing for the extraction of cooking fumes during use.

[0038] During cooking, the drive mechanism 21 drives the flap 22 to rotate, opening the air intake 111 so that cooking fumes can be drawn in and exhausted through the air intake 111. When cooking is finished, the drive mechanism 21 can drive the flap 22 to rotate in the opposite direction, closing the air intake 111. With the air intake 111 closed, the user cannot view the internal structure of the range hood through the air intake 111, thus maintaining the overall aesthetics of the range hood.

[0039] In addition, the rotatable flap 22 makes it easier to wipe and clean the air intake 111 and the air intake panel 11 during cleaning, removing accumulated oil and dust.

[0040] In this embodiment, please refer to Figure 2 An installation space is formed between the back of the suction panel 11 and the wall. The flap assembly 2 is located behind the suction panel 11, within this installation space, thus concealing the flap assembly 2 and ensuring the overall aesthetics of the range hood. Simultaneously, the suction panel 11 acts as a barrier against the fumes generated during cooking and the drive structure 21, preventing contamination of the drive structure 21 and ensuring its lifespan.

[0041] For the smoke hood of this utility model, please refer to [link / reference]. Figures 2 to 11 The drive structure 21 can drive the flap 22 to open at any angle, and the gap between the flap 22 and the upper edge of the air intake 111 forms the effective air intake of the smoke hood.

[0042] During cooking, the drive structure 21 drives the flap 22 to rotate, opening the air intake 111. During this process, the drive structure 21 controls the rotation angle of the flap 22, correspondingly changing the size of the effective air intake formed between the flap 22 and the upper edge of the air intake 111. This adjusts the airflow and controls the amount of smoke extracted, adapting to different smoke generation and flow conditions. For example, when the smoke generation is high, the effective air intake area can be appropriately increased to improve smoke extraction efficiency. Simultaneously, the noise generated during smoke extraction is controlled. Obviously, a larger extraction volume per unit time results in relatively higher noise levels, and a smaller extraction volume per unit time results in relatively lower noise levels. This satisfies both the user's requirements for airflow and noise control, improving the comfort of using the range hood.

[0043] In this embodiment, the rotating mounting end of the flap 22 is its lower end, and the distance between its rotating mounting axis and the lower edge of the air intake 111 remains constant. This reduces the phenomenon of oil fumes flowing through the gap between the lower end of the flap 22 and the lower edge of the air intake 111 when the air intake 111 is opened by rotating the flap 22. Furthermore, during the suction and exhaust process, the flap 22 tilts backward from its lower end to its upper end. This tilted flap 22 guides the oil fumes. When oil fumes on the front of the suction panel 11 are sucked into the air intake 111, the flap 22 blocks and guides the oil fumes entering the air intake 111, preventing them from impacting the wall and guiding them upwards into the purification chamber of the range hood.

[0044] As a specific embodiment, the rotation angle of the flap 22 is any angle within the range of 0°-90°, specifically 0°, 10°, 20°, 30°, 40°, 45°, 50°, 60°, 65°, and 70°. When the rotation angle is 0°, the flap 22 is parallel to the back of the suction panel 11, and the flap 22 closes the suction port 111; when the rotation angle of the flap 22 is 90°, the flap 22 is perpendicular to the back of the suction panel 11, and the suction port 111 is at its maximum open angle.

[0045] For the smoke hood of this utility model, please refer to [link / reference]. Figures 6 to 8 The upper edge of the flap 22 extends to a guide plate 221, which is inclined backward from bottom to top.

[0046] The back of the air guide plate 221 and the flap 22 form an obtuse angle structure greater than 110°, specifically 115°, 120°, 125°, 130° and 135°, etc.

[0047] During the process of fumes extraction, the inclined guide vane 221 provides a clearer and smoother guiding path for the rising fumes, reducing turbulence and diffusion during the flow. As the fumes rise along the guide vane 221, the inclined surface generates an upward force on the fumes, helping them to be extracted more quickly and effectively improving suction efficiency, thus drawing the fumes into the treatment system faster. Simultaneously, due to the inclined design of the guide vane 221, the flap 22 forms a larger effective exhaust port. Fumes that might have previously only been able to be extracted within the opening of the flap 22 can now be extracted from within the coverage area of ​​the guide vane 221, expanding the suction coverage area and thus capturing more fumes.

[0048] Additionally, when the flap 22 is closed to the air intake 111, the air guide plate 221 is tilted backward from bottom to top. In this state, refer to Figure 8 An upward-facing opening is formed between the air guide plate 221 and the suction panel 11, which can catch downward-dripping oil and reduce the possibility of oil dripping onto the back of the flap 22. When oil drips onto the air guide plate 221 and flows downward onto the flap 22, the user can clean the flap 22 from the suction port 111.

[0049] For the smoke hood of this utility model, please refer to [link / reference]. Figures 2 to 11 The edge of the air intake 111 is provided with a first air guide ring 112 and a second air guide ring 113. The first air guide ring 112 is constricted. One end of the first air guide ring 112 is connected to the air intake 111, and the other end of the first air guide ring 112 is connected to the second air guide ring 113. The second air guide ring 113 is flared.

[0050] During the cooking process, when the fumes are being extracted, they enter through the air intake 111 and are then discharged into the annular opening structure formed by the first air guide ring 112, and then into the annular opening structure formed by the second air guide ring 113. The fumes are then discharged through the opening formed by the second air guide ring 113 and are drawn upward under the guidance of the flap 22.

[0051] During the process of fumes extraction, the constricted opening of the first guide ring 112 and the expanded opening of the second guide ring 113 form a continuous airflow guiding structure, providing an optimized flow path for the fumes. After entering through the first guide ring 112, the fumes are first accelerated and pre-treated by the first guide ring 112, and then guided and buffered by the second guide ring 113, making the entire airflow path smoother and more reasonable, which helps to improve the overall performance and efficiency of the fume treatment system.

[0052] Specifically, the constricted first air guide ring 112 can increase the flow velocity of the fumes passing through the air intake 111. When the fumes pass through the constriction, the cross-sectional area decreases, and the flow velocity increases accordingly, which helps to improve the transmission efficiency of the fumes in the system and reduce the residence time of the fumes near the air intake 111.

[0053] The flared second guide ring 113 can guide and diffuse the fumes discharged from the first guide ring 112. When the fumes pass through the flared opening, the space increases, which can reduce the flow velocity of the fumes to a certain extent, making the airflow more stable, reducing airflow fluctuations and turbulence, and ensuring that the flap 22 can fully discharge the fumes discharged from the second guide ring 113.

[0054] Based on the above embodiment, the air intake 111 has an elongated annular opening structure with arc-shaped ends along its length. The first air guide ring 112 and the second air guide ring 113 both have matching elongated annular structures. Furthermore, in the closed state, the projection of the opening of the second air guide ring 113 lies within the surface of the flap 22, ensuring that the flap 22 can completely seal the second air guide ring 113 in the closed state, thus guaranteeing the closed state of the air intake 111.

[0055] For the smoke hood of this utility model, please refer to [link / reference]. Figures 2 to 11 The lower end of the flap 22 extends forward to form an oil receiving plate 222. The oil receiving plate 222 is located below the second air guide ring 113. The projection of the part of the second air guide ring 113 located below the air intake 111 falls into the oil receiving plate 222.

[0056] With the air intake vent 111 open, as the fumes are guided upwards by the flap 22 and exhausted, oil droplets dripping down onto the flap 22 and guide plate 221, along with the oil adhering to them, flow downwards and collect on the oil receiving plate 222, creating a storage effect and preventing the oil from continuing to flow downwards and adhering to other structural components. After long-term use, the flap 22 can be removed for centralized cleaning of the oil.

[0057] The flap 22 and the oil receiving plate 222 form an upward-opening structure, and the portion of the second air guide ring 113 located below the air intake 111 extends into this opening structure. During long-term use, when the oil adhering to the second air guide ring 113 flows downward and out of the second air guide ring 113, the dripping oil can drip down and collect in the opening structure formed by the flap 22 and the oil receiving plate 222, thereby preventing the oil from continuing to flow downward and adhering to other structural components. At the same time, the upper ends of the first air guide ring 112 and the second air guide ring 113 together form an upward-opening "V"-shaped structure. When oil drips downward into this opening, it can spread to both ends, then flow downward, and finally fall onto the oil receiving plate 222 for collection.

[0058] In this embodiment, a gap is formed between the oil receiving plate 222 and the second air guide ring 113 to prevent the second air guide ring 113 from obstructing the rotation of the oil receiving plate 222.

[0059] For the smoke hood of this utility model, please refer to [link / reference]. Figures 2 to 5 The drive structure 21 includes a drive motor 211 and a connecting rod 212. The output end of the drive motor 211 is connected to a swing rod 213. The output end of the swing rod 213 is connected to the input end of the connecting rod 212. The back of the flip plate 22 is connected to a flip plate seat 223. The output end of the connecting rod 212 is connected to the flip plate seat 223.

[0060] During cooking, the drive motor 211 is activated, which drives the swing arm 213 to rotate. The rotating swing arm 213 pulls the connecting rod 212 to move, which in turn pulls the flap 22 to rotate, thus opening or closing the flap 22. During control, the drive motor 211 allows the flap 22 to rotate at any angle, enabling the air intake 111 to be adjusted at any angle to meet the needs of airflow and noise control.

[0061] In this embodiment, the flap base 223 is installed in the middle of the back of the flap 22 so that under the drive of the drive structure 21, the force on each part of the flap 22 is equal, ensuring that each part of the flap 22 rotates at the same time, thereby realizing the simultaneous opening or closing of each part of the air intake 111.

[0062] Furthermore, both ends of the connecting rod 212 are rotatably connected to the swing rod 213 and the flip plate seat 223 respectively via connecting shafts. The flip plate seat 223 has an "L" shaped structure, one end of which can be fixedly connected to the flip plate 22 with screws, and the other end of which can be rotatably connected to the connecting rod 212 via a connecting shaft.

[0063] For the smoke hood of this utility model, please refer to [link / reference]. Figures 2 to 5 The flip panel assembly 2 also includes a mounting plate 23, and the drive motor 211 is mounted on the mounting plate 23 via a motor bracket 214.

[0064] During installation, first fix the mounting plate 23 to the back of the suction panel 11, specifically by screws or adhesive. Then fix the motor bracket 214 to the back of the mounting plate 23. After that, fix the drive motor 211 to the motor bracket 214 to complete the installation of the drive motor 211.

[0065] The motor bracket 214 has an "L"-shaped structure. One end of the bracket can be fixedly connected to the mounting plate 23 with screws, and the other end can be fixedly mounted to the drive motor 211 with screws. Furthermore, the other end of the motor bracket 214 has a through hole to allow the output shaft of the drive motor 211 to extend out.

[0066] Based on the above embodiment, the mounting plate 23 is located below the flap 22, that is, the drive structure 21 is located below the flap 22, so that during the process of fumes extraction, the tilted flap 22 can shield and protect the drive structure 21, preventing oil from dripping and contaminating the drive structure 21.

[0067] For the smoke hood of this utility model, please refer to [link / reference]. Figures 2 to 5 The flap assembly 2 also includes a flap bracket 24, which is located on the rear side of the suction panel 11. There are two flap brackets 24, which are located on both sides of the flap 22. The two ends of the flap 22 are rotatably connected to the flap bracket 24.

[0068] In this embodiment, the lower end of the flap 22 is rotatably connected to the two flap supports 24 by rotation. Both flap supports 24 can be fixedly connected to the suction panel 11 with screws to maintain stability and thus achieve stable support for the flap 22. Using two flap supports 24 to connect the lower end of the flap 22 can evenly distribute the weight of the flap 22 and the various forces it bears during opening and closing to two support points. Compared with a single-point connection, this two-point connection method can make the force on the flap 22 more balanced, reduce structural deformation and damage caused by excessive force at a single point, and thus extend the service life of the sealing plate and the entire system.

[0069] The flap 22 and the suction panel 11 are rotatably connected via two flap brackets 24. In the non-operating state, the flap 22, relying on its own weight and the action of the drive structure 21, tightly fits against the suction port 111 of the suction panel 11, completely sealing the suction port 111. This effectively prevents external air, dust, and other impurities from entering the system through the suction port 111, ensuring a relatively clean and stable internal environment. When oil fumes need to be treated, the flap 22 can rotate and open around the rotatable connection point with the two flap brackets 24, exposing the suction port 111 and forming an oil fume channel, allowing oil fumes to be smoothly drawn into the system for treatment. This rotatable connection method makes the opening and closing operation of the flap 22 very flexible, enabling a rapid response according to actual needs.

[0070] For the smoke hood of this utility model, please refer to [link / reference]. Figures 2 to 5 The flip-plate bracket 24 is installed on the mounting plate 23.

[0071] The flap bracket 24 can be fixedly connected to the mounting plate 23 with screws. In this way, it is only necessary to fix the mounting plate 23 to the back of the suction panel 11 and then fix the flap bracket 24 to the mounting plate 23. Compared with fixing both flap brackets 24 and the mounting plate 23 to the suction panel 11, the number of screw opening points on the suction panel 11 can be reduced, thus reducing damage to the suction panel 11.

[0072] For the smoke hood of this utility model, please refer to [link / reference]. Figures 2 to 5 The lower end of the flap 22 extends forward to form an oil receiving plate 222. Rotary connecting parts 224 extend downward on both sides of the oil receiving plate 222. The flap bracket 24 is provided with a support plate 241 corresponding to the rotary connecting part 224. The rotary connecting part 224 is rotatably connected to the support plate 241.

[0073] In this embodiment, the flap bracket 24 and the support plate 241 form an "L" shape. The flap bracket 24 is mounted on the mounting plate 23, and the support plate 241 is integrally formed on the flap bracket 24 and is set perpendicular to the flap bracket 24. A pivot hole is provided through the rotating connection part 224 and the support plate 241 to achieve a rotating connection between the two through a pivot (not shown in the figure).

[0074] The rotating mounting point of the flap 22 is located between the plane of the flap 22 and the back of the suction panel 11, which increases the distance between the flap 22 and the suction panel 11, thus forming an installation space for installing the oil receiving plate 222.

[0075] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A range hood, characterized in that, include: The range hood body (1) has a suction panel (11) and a suction port (111) on the suction panel (11). Flip plate assembly (2), the flip plate assembly (2) is located on the rear side of the air intake panel (11), the flip plate assembly (2) includes a drive structure (21) and a flip plate (22), the drive structure (21) is used to drive the flip plate (22) to rotate so that the flip plate (22) opens or closes the air intake (111).

2. The range hood according to claim 1, characterized in that, The drive structure (21) can drive the flap (22) to open at any angle, and the gap between the flap (22) and the upper edge of the air inlet (111) forms an effective air inlet for the smoke machine.

3. The smoke hood according to claim 1, characterized in that, The upper edge of the flap (22) extends to a guide plate (221), which is inclined backward from bottom to top.

4. The range hood according to claim 1, characterized in that, The air intake (111) is provided with a first air guide ring (112) and a second air guide ring (113) around the edge of the air intake (111). The first air guide ring (112) is constricted. One end of the first air guide ring (112) is connected to the air intake (111), and the other end of the first air guide ring (112) is connected to the second air guide ring (113). The second air guide ring (113) is flared.

5. The range hood according to claim 4, characterized in that, The lower end of the flap (22) extends forward to form an oil receiving plate (222). The oil receiving plate (222) is located below the second air guide ring (113). The projection of the portion of the second air guide ring (113) located below the air intake (111) falls into the oil receiving plate (222).

6. The range hood according to claim 1, characterized in that, The drive structure (21) includes a drive motor (211) and a connecting rod (212). The output end of the drive motor (211) is connected to a swing rod (213). The output end of the swing rod (213) is connected to the input end of the connecting rod (212). The back of the flip plate (22) is connected to a flip plate seat (223). The output end of the connecting rod (212) is connected to the flip plate seat (223).

7. The range hood according to claim 6, characterized in that, The flip panel assembly (2) also includes a mounting plate (23), and the drive motor (211) is mounted on the mounting plate (23) via a motor bracket (214).

8. The range hood according to claim 6, characterized in that, The flip plate assembly (2) also includes a flip plate bracket (24), which is located on the rear side of the suction panel (11). There are two flip plate brackets (24), which are located on both sides of the flip plate (22). The two ends of the flip plate (22) are rotatably connected to the flip plate brackets (24).

9. The range hood according to claim 8, characterized in that, The flip panel assembly (2) also includes a mounting plate (23), the drive motor (211) is mounted on the mounting plate (23) via a motor bracket (214), and the flip panel bracket (24) is mounted on the mounting plate (23).

10. The smoke hood according to claim 8, characterized in that, The lower end of the flap (22) extends forward to form an oil receiving plate (222), and the two sides of the oil receiving plate (222) extend downward to form rotating connecting parts (224). The flap bracket (24) is provided with a support plate (241) corresponding to the rotating connecting part (224), and the rotating connecting part (224) is rotatably connected to the support plate (241).

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