Lifting type range hood
Lift-type range hoods solve the problem of oil fume escape caused by fixed installations by linking the lifting of the smoke collection device with the smoke baffle, achieving both concealment and efficient smoke extraction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- NINGBO FOTILE KITCHEN WARE CO LTD
- Filing Date
- 2023-10-16
- Publication Date
- 2026-05-15
Smart Images
Figure CN122041201A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of range hood technology, and in particular to a lift-type range hood. Background Technology
[0002] Chinese cooking produces a lot of oil fumes. To maintain a clean kitchen environment and protect human health, range hoods have become an essential piece of equipment in modern family kitchens. However, as the application rate of range hoods increases, people are paying more and more attention to their fume extraction performance.
[0003] In related technologies, the installation position of range hoods is fixed. This means that if the distance between the air inlet of the range hood and the area where the fumes are generated is large, the suction path of the fumes is longer and the suction time is increased, making it easy for fumes to escape during cooking. If the installation height of the range hood is lowered, although it is beneficial to improve the fume extraction effect, it will result in a smaller cooking space. The cook's head may accidentally hit the fume hood. In addition, lowering the installation height will also affect the line of sight and the overall appearance of the kitchen. Summary of the Invention
[0004] The technical problem to be solved by the present invention is to address the shortcomings of the prior art by providing a liftable range hood that can be hidden when not in use, while meeting the needs of users in different usage scenarios when in use.
[0005] The first technical solution adopted by the present invention to solve the above-mentioned technical problems is: a liftable range hood, comprising: outer shell; A smoke collection device includes a smoke collection hood, the smoke collection hood having an oil fume inlet; and Smoke baffle; The smoke collection device can move up and down relative to the outer shell along a first direction and in the opposite direction. The first direction is from the lifting range hood toward the gas stove. The bottom of the outer shell has an opening for the smoke collection hood to be lifted and passed through. When the lifting range hood is in the fume extraction mode, the bottom of the fume collection hood extends out of the outer shell, the fume baffle is in the open state, exposing the fume inlet, and a fume collection chamber is formed between the fume baffle and the fume inlet; When the lifting range hood is in smoke extraction mode, the smoke collection hood retracts into the outer shell through at least a portion of the opening at the bottom of the outer shell. At least a portion of the opening at the bottom of the outer shell allows the interior of the outer shell to remain in fluid communication with the outside of the range hood. This at least portion is referred to as the communication area. The smoke baffle closes the communication area.
[0006] After the lift-up range hood is installed, when not in use, the smoke collection hood retracts vertically into the outer shell, making the kitchen cleaner and the space appear larger. In this state, the grease inside the range hood condenses into liquid and flows downwards. Usually, most of the oil flowing down is from the fan module above the smoke collection hood. This part of the oil is caught by the smoke collection hood and flows backwards along the bottom of the hood and is collected. This is the conventional oil path. However, during the process of smoke extraction, it comes into contact with the inner side of the outer shell, causing oil to adhere to the inner side of the outer shell. This adhered oil flows directly downwards and cannot be completely caught by the smoke collection hood. As a result, when it reaches the bottom of the outer shell, it drips down through the unsealed connecting area. To address this, by setting the smoke baffle to close in this state, the smoke baffle closes this connecting area, catching the oil flowing down from the sides of the inner cavity of the outer shell and preventing the oil from dripping directly downwards. When in operation, the smoke collection device can descend to approach the smoke source, while the smoke baffle is in the open state, thus forming a smoke-gathering chamber between the smoke baffle and the oil fume inlet. This facilitates the intake of oil fumes and improves the smoke extraction effect. It also allows users to adjust the descent height of the smoke collection device to meet the needs of different usage scenarios.
[0007] Furthermore, the smoke baffle includes a first end and a second end opposite to each other; the first end of the smoke baffle is rotatably connected to the bottom of the outer casing, and the second end of the smoke baffle is a free end, so that when the lifting range hood is in smoke extraction mode, the front end of the portion of the smoke collection device exposed at the bottom of the outer casing is close to the first end of the smoke baffle.
[0008] When opened, the upper part of the baffle plate and the smoke collection device are close together, so that the two occupy less space in the front and rear depth direction of the range hood. The overall structure is relatively compact. The smoke collection area is formed by the baffle plate and the smoke collection device alone. The oil fumes can be quickly sucked into the smoke collection device under the smoke collection effect of the baffle plate.
[0009] Furthermore, when the lifting range hood is in fume extraction mode, the first end of the smoke baffle is located behind the bottom front end of the outer casing. The bottom of the outer casing can block leakage from the first end of the smoke baffle and the portion of the fume collection hood exposed outside the outer casing during fume extraction, allowing the backflow of fumes to be drawn into the fume collection hood.
[0010] Furthermore, the smoke baffle opens as the smoke collection device descends and closes as the smoke collection device rises. Thus, the smoke baffle opening as the smoke collection device descends expands the smoke collection area, and the closing as the smoke collection device rises makes the range hood more streamlined in design.
[0011] Furthermore, the lift-type range hood also includes a connector, one end of which is connected to the smoke baffle, and the other end of which is connected to the bottom of the smoke collection device. This facilitates the linkage between the smoke baffle and the smoke collection device, simplifying the overall drive structure of the machine.
[0012] Furthermore, the lift-type range hood also includes a drive device, which is used to drive the smoke collection device to move in a first direction so that the bottom of the smoke collection hood extends out of the outer shell; the drive device can also drive the smoke collection device to move in the opposite direction of the first direction so that the bottom of the smoke collection hood retracts into the outer shell;
[0013] During the process of the driving device driving the smoke collection device to move along the first direction, the free end of the smoke baffle connected to the smoke collection device can be driven to move along the second direction to expose the oil fume inlet; the second direction intersects with the first direction; during the process of the driving device driving the smoke collection device to move in the opposite direction of the first direction, the free end of the smoke baffle connected to the smoke collection device can be driven to move in the opposite direction of the second direction to block the oil fume inlet.
[0014] Therefore, the smoke baffle and the smoke collection device have different movement patterns, so that the smoke baffle opens when the smoke collection device descends to collect the smoke, and the smoke baffle closes in the opposite direction when the smoke collection device rises, making the range hood more concise in shape.
[0015] Furthermore, the smoke baffle includes a first end and a second end that is the free end. When the lifting range hood is in smoke extraction mode, the second end is located behind the first end. The position of the second end when the lifting range hood is in smoke extraction mode is lower than the position when the lifting range hood is in smoke extraction mode. This allows the smoke baffle to open downwards and outwards after the smoke collection device descends, thereby achieving smoke collection.
[0016] Furthermore, the smoke collection device also includes an oil collection structure located at the bottom of the smoke collection hood. When the smoke collection device is fully raised, the oil collection structure is hidden within the outer casing. This prevents significant changes in the position of the smoke baffle relative to the outer casing, ensuring that even when the smoke collection device is fully retracted into the outer casing, the smoke baffle returns to a position flush with the bottom of the outer casing.
[0017] Furthermore, when the smoke collection device is fully lowered, the smoke baffle is fully open, and the opening angle of the smoke baffle relative to the bottom of the outer casing is an obtuse angle. By setting up an oil collection structure, it is easy to collect the oil dripping from inside the smoke collection device. When the range hood is not in use, the oil collection structure is hidden, making the range hood more concise in appearance.
[0018] Furthermore, the surface of the fume inlet of the fume hood has an acute angle with the top surface of the fume hood. This design allows the fume inlet to face the gas stove, enabling the rising fumes to be drawn in without significantly changing their angle, thus improving fume extraction efficiency.
[0019] The second technical solution adopted by the present invention to solve the above-mentioned technical problem is: a liftable range hood, comprising: outer shell; A smoke collection device includes a smoke collection hood having an inlet for fumes facing the gas stove; and Smoke baffle; The smoke collection device can move up and down relative to the outer shell along a first direction and in the opposite direction. The first direction is from the lifting range hood toward the gas stove. The surface of the smoke inlet of the smoke collection hood has an acute angle with the top surface of the smoke collection hood. When the lifting range hood is in the fume extraction mode, the bottom of the fume collection hood extends out of the outer shell, and the fume baffle is in the open state, exposing the fume inlet. When the lifting range hood is turned off in the fume extraction mode, the fume collection hood retracts into the outer shell, and the fume baffle is in a closed state. Thus, the fume baffle blocks the fume inlet and also closes at least a portion of the opening at the bottom of the outer shell through which the fume collection hood passes.
[0020] After the lift-up range hood is installed, when not in use, the smoke collection hood retracts into the outer shell, making the kitchen cleaner and the space appear larger. When in operation, the smoke collection device can be lowered to get closer to the smoke source, and the smoke inlet faces the gas stove, which facilitates the intake of smoke and improves the smoke extraction effect. It also allows users to adjust the lowering height of the smoke collection device to meet the needs of different usage scenarios.
[0021] Furthermore, in existing technologies, fume hoods are typically rectangular in shape. Therefore, when they are folded upwards, only the bottom opening of the fume-sealing outer shell is needed for the fume hood to pass through. However, in this invention, because the fume inlet of the fume hood is inclined, the overall depth of the fume hood is not uniform in the height direction, with the bottom of the fume hood being the shallowest. This makes it impossible to close the opening by setting an oil cup at the bottom of the fume hood after it is folded upwards (otherwise, the oil cup would be too deep and would block the upward flow of fumes when the range hood is working). Therefore, in this invention, a baffle plate that can move relative to the outer shell and the fume hood is used to close at least part of the opening at the bottom of the outer shell after the fume hood is folded upwards into the outer shell. This facilitates the concealment of the fume hood and avoids the exposure of the internal structure of the fume hood or the filter screen usually installed at the fume inlet.
[0022] Furthermore, when the lifting range hood is in smoke extraction mode, the portion of the bottom of the outer casing that connects the smoke inlet of the smoke collection device to the outside of the range hood constitutes the opening or part of the opening, and this portion of the bottom of the outer casing is closed by a smoke baffle. Thus, when the range hood is not in use, the smoke baffle further completely seals off any part of the smoke collection device that may be visible from the outside, better concealing the smoke collection device.
[0023] The third technical solution adopted by the present invention to solve the above-mentioned technical problems is: a liftable range hood, comprising: outer shell; A smoke collection device includes a smoke collection hood having an inlet for fumes facing the gas stove; and Smoke baffle; The smoke collection device can move up and down relative to the outer shell along a first direction and in the opposite direction. The first direction is from the lifting range hood toward the gas stove. The surface of the smoke inlet of the smoke collection hood has an acute angle with the top surface of the smoke collection hood. When the lifting range hood is in the fume extraction mode, the bottom of the fume collection hood extends out of the outer shell, and the fume baffle is in the open state, exposing the fume inlet. When the range hood is turned off in smoke extraction mode, the smoke collection hood retracts into the outer shell, the smoke baffle is in a closed state, the smoke baffle blocks the smoke inlet, and the smoke baffle is flush with the bottom of the outer shell.
[0024] After the lift-up range hood is installed, when not in use, the smoke collection device retracts into the outer casing, and the smoke baffle is flush with the bottom of the casing. This allows the bottom of the range hood to be designed to be flush with the bottom of the cabinet, achieving a concealed design that makes the kitchen cleaner and the space appear larger. When in operation, the smoke collection device can be lowered to get closer to the smoke source, and users can also adjust the lowering height of the smoke collection device to meet the needs of different usage scenarios.
[0025] Furthermore, when the lifting range hood is in smoke extraction mode, the portion of the bottom of the outer casing that connects the smoke inlet of the smoke collection device to the outside of the range hood is closed by a smoke baffle. Thus, when the range hood is not in use, the smoke baffle further completely seals off any part of the smoke collection device that might be visible from the outside, better concealing the smoke collection device.
[0026] Compared with the prior art, the advantages of the present invention are as follows: After the lifting range hood is installed, when not in use, the smoke collection hood of the smoke collection device retracts vertically into the outer shell, making the kitchen cleaner and the space appear larger. In this state, the bottom surface of the smoke collection hood is at least partially located inside the outer shell, i.e., not completely closed at the opening at the bottom of the outer shell. This causes the oil accumulated on the front and left and right sides of the inner cavity of the outer shell to flow downwards through this unclosed opening at the bottom of the outer shell. To address this, by setting the smoke baffle to close in this state, the oil flowing down from the inner cavity of the outer shell can be collected by the smoke baffle, preventing the oil from dripping directly downwards. In the working state, the smoke collection device can descend to approach the smoke source, forming a smoke gathering chamber between the smoke baffle and the smoke inlet, which facilitates the intake of smoke and improves the smoke extraction effect. It also allows users to adjust the descent height of the smoke collection device to meet the needs of different usage scenarios. Attached Figure Description
[0027] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0028] Figure 1 This is a structural schematic diagram of a lift-up range hood provided in this application;
[0029] Figure 2 This is a structural schematic diagram of a lift-type range hood in the smoke-off mode provided in this application;
[0030] Figure 3 This is a structural schematic diagram of a lift-type range hood in smoke extraction mode provided in this application;
[0031] Figure 4 This is a structural schematic diagram of a fan device provided in this application;
[0032] Figure 5 This is a schematic diagram of the structure of a smoke collection device provided in this application;
[0033] Figure 6 This is a partial schematic diagram of a lift-type range hood in the smoke-off mode provided in this application.
[0034] The following is supplementary explanation of the attached figures:
[0035] 1-Fan unit; 101-Fan housing; 102-Fan module; 2-Smoke collection device; 201-Fume inlet; 202-Installation structure; 203-Smoke hood; 2031-First side plate; 2032-Second side plate; 2033-Third side plate; 2034-Oil screen; 204-Oil collection structure; 3-Drive device; 4-Outer housing; 401-First housing; 402-Second housing; 5-Smoke baffle; 6-Connector; 7-Frame structure; 8-Guide rail; 9-Slider. Detailed Implementation
[0036] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0037] The term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of this application. In the description of this application, it should be understood that the terms "upper," "lower," "top," "bottom," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. 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 one or more of that feature. Moreover, the terms "first," "second," etc., are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein.
[0038] Example 1
[0039] Please see Figure 1This application provides a lifting range hood, which includes a fan device 1, a smoke collection device 2, and a drive device 3; the drive device 3 is connected to the smoke collection device 2 and is used to drive the smoke collection device 2 to move up and down relative to the fan device 1; the smoke collection device 2 includes a smoke inlet 201; the fan device 1 is used to draw smoke from the smoke inlet 201 into the fan device 1 and then discharge it. Therefore, by cooperating with the cabinets, after the lift-up range hood is installed, when not in use, the bottom of the range hood can be flush with the bottom of the cabinet, thus concealing the range hood. In particular, the oil filter and other structures at the bottom of the range hood make the kitchen cleaner and the space appear larger. In addition, the lowering height of the smoke collection device 2 can be adjusted as needed to meet the needs of different cooking scenarios. For example, when cooking ingredients that produce a lot of oil fumes, such as stir-frying, a range hood with more comprehensive suction power is needed. At this time, the smoke collection device 2 can be lowered to the lowest position, where the oil fume inlet is closer to the smoke source, resulting in better smoke extraction. When stir-frying some ingredients, only a certain range of suction power is needed. At this time, the smoke collection device 2 can be lowered to the middle position, where the lower position is closer to the gas stove than the middle position.
[0040] In one feasible embodiment, please refer to Figure 2 The lift-up range hood also includes an outer shell 4, with a fan device 1 and a smoke collection device 2 located inside the outer shell 4. Specifically, the outer shell 4 is fixed to the wall, and the fan device 1 is also fixed inside the shell. Optionally, the outer shell 4 includes a first shell 401 and a second shell 402, both of which are cylindrical structures. The fan device 1 is housed inside the first shell 401, and the second shell 402 provides space for the smoke collection device 2. Optionally, the length of the second shell 402 is greater than the length of the first shell 401, and the width of the second shell 402 can be greater than or equal to the width of the first shell 401. Of course, to improve the suction effect of the fan device 1, the width of the first shell 401 can also be greater than the width of the second shell 402, specifically, the side of the first shell 401 can protrude beyond the corresponding side of the first shell 401. Optionally, the first shell 401 can be formed by bending a single plate or by connecting multiple plates into a cylindrical structure. Similarly, the second shell 402 can be formed by bending a single plate or by connecting multiple plates. Optionally, the first shell 401 and the second shell 402 can be integrally formed.
[0041] Please see Figure 3 When the lift-type range hood is in smoke extraction mode, the drive device 3 drives the smoke collection device 2 to move along a first direction, so that the bottom of the smoke collection device 2 extends out of the outer casing 4; the first direction is from the lift-type range hood towards the gas stove. Please refer to [link / reference]. Figure 2When the range hood is in the smoke extraction mode, the drive device 3 drives the smoke collection device 2 to move in the opposite direction of the first direction, so that the bottom of the smoke collection device 2 retracts into the outer shell 4.
[0042] In one feasible embodiment, please refer to Figure 3 The range hood also includes a smoke baffle 5 and a connector 6. The smoke baffle 5 has a first end and a second end facing each other. The bottom of the outer casing 4 is rotatably connected to the first end of the smoke baffle 5, and the second end of the smoke baffle 5 is a free end. One end of the connector 6 is connected to the smoke baffle 5, and the other end of the connector 6 is connected to the bottom of the smoke collection device 2. Optionally, the smoke baffle 5 has a first surface and a second surface facing each other. When the range hood is in the closed smoke extraction mode, the first surface is the exposed surface facing the gas stove, and the second surface faces the interior of the range hood. The connector 6 is connected to the second surface. Optionally, to improve the stability of the movement of the smoke baffle 5 during opening and closing, at least two connectors 6 can be provided, one connector 6 on each side of the smoke baffle 5. Optionally, for each connector 6, the connector 6 can be fixedly connected to the smoke baffle 5 and rotatably connected to the bottom of the smoke collection device 2; alternatively, the connector 6 can be rotatably connected to the smoke baffle 5 and fixedly connected to the bottom of the smoke collection device 2; or the connector 6 can be rotatably connected to the smoke baffle 5 and also rotatably connected to the bottom of the smoke collection device 2. Optionally, the smoke baffle 5 can be made of glass for easy cleaning.
[0043] In one feasible embodiment, during the process of the driving device 3 driving the smoke collection device 2 to move along the first direction, the free end of the smoke baffle 5 connected to the smoke collection device 2 can be driven to move along the second direction to expose the oil fume inlet 201; the second direction intersects with the first direction. Optionally, the second direction can be an arc direction. During the process of the driving device 3 driving the smoke collection device 2 to move in the opposite direction of the first direction, the free end of the smoke baffle 5 connected to the smoke collection device 2 can be driven to move in the opposite direction of the second direction to block the oil fume inlet 201. The linkage structure of the liftable smoke collection device 2 and the smoke baffle 5 provided in this application allows the smoke baffle 5 to open as the smoke collection device 2 descends, which can expand the smoke collection area, and the smoke baffle 5 to close as the smoke collection device 2 rises, making the range hood more concise in form.
[0044] In one feasible embodiment, please refer to Figure 2 With the smoke collection device 2 fully raised, the smoke baffle 5 flips to a position flush with the bottom of the outer casing 4. At this time, the smoke baffle 5 is flush with the bottom of the cabinet, thus not only concealing the entire range hood but also hiding structures such as the oil filter 2034 at the smoke inlet 201. With the smoke collection device 2 fully lowered, the smoke baffle 5 is fully opened, and the opening angle of the smoke baffle 5 relative to the bottom of the second casing 402 is an obtuse angle, such as 100 degrees.
[0045] In one feasible embodiment, please refer to Figure 4 The fan device 1 includes a fan housing 101 and a fan module 102 located inside the fan housing 101; the fan module 102 is in airflow communication with the fume inlet 201. When the range hood is in smoke extraction mode, the fan module 102 can provide suction to draw the fumes from the fume inlet 201. At this time, the smoke collection device 2 descends, the negative pressure zone moves downward, and the smoke extraction effect is ensured.
[0046] In one feasible embodiment, please refer to Figure 5 The smoke collection device 2 includes a connected mounting structure 202 and a smoke collection hood 203; a drive device 3 is connected to the mounting structure 202; under the driving force of the drive device 3, the mounting structure 202 can move up and down relative to the fan housing 101, thereby driving the smoke collection hood 203 to move up and down relative to the fan housing 101. Optionally, please refer to... Figure 6 When the driving device 3 drives the smoke collection device 2 to move in the first direction, it will cause the smoke baffle 5 to open. At this time, the smoke collection hood 203 extends out of the second housing 402 (see [link]). Figure 3 When the driving device 3 drives the smoke collection device 2 to move in the opposite direction of the first direction until the smoke baffle 5 is completely closed, the smoke collection hood 203 retracts into the second housing 402.
[0047] In one feasible embodiment, please refer to Figure 5 The smoke collection device 2 also includes an oil collection structure 204; the oil collection structure 204 is located at the bottom of the smoke collection hood 203, and when the smoke collection device 2 is fully raised, the oil collection structure 204 is hidden in the outer shell 4. Optionally, the fume hood 203 further includes a first side plate 2031, a second side plate 2032, a third side plate 2033, a fourth side plate, and a fifth side plate; the first side plate 2031 is disposed opposite to the fourth side plate and is disposed on the same side as the third side plate 2033; the two ends of the second side plate 2032 are respectively connected to the first side plate 2031 and the fourth side plate, and the second side plate 2032 is provided with an oil fume inlet 201, which is provided with an oil mesh 2034; the two opposite ends of the fifth side plate are respectively connected to the first side plate 2031 and the fourth side plate, and the first side plate 2031, the second side plate 2032, the third side plate 2033, the fourth side plate, and the fifth side plate are connected to form a groove-like structure with the opening facing the first direction, and the third side plate 2033 is provided with a through hole communicating with the mounting structure 202 in the middle. Optionally, the opening of the fume hood 203 is provided with an oil collection structure 204, and the second side plate 2032 is inclined toward the oil collection structure 204. Optionally, the included angle between the second side plate 2032 and the third side plate 2033 is an acute angle, such as 60 degrees, so that the oil fume inlet 201 faces the gas stove, thereby improving the oil fume extraction effect.
[0048] Since the bottom of the smoke collection device 2 extends out of the outer shell 4 when moving in the first direction and retracts into the outer shell 4 when moving in the opposite direction, the bottom of the outer shell 4 must have an opening 41 for the smoke collection device 2 to pass through. When the smoke collection device 2 is in the fully raised closed state, the smoke hood 203 of the smoke collection device 2 is at least partially retracted into the outer shell 4. At this time, at least a portion of the opening 41 at the bottom of the outer shell 4 is not closed by the smoke collection device 2. At least a portion of the opening 41 is referred to here as the connecting region 411 (since the opening 41 is a non-solid structure, therefore...). Figure 2 (Indicated by a dashed line). This connecting region 411 allows for fluid communication between the interior of the outer casing 4 and the exterior of the range hood. In this embodiment, since the second side plate 2032 of the smoke collection hood 203 is inclined towards the smoke collection structure 204, at least the portion of the opening 41 before the oil collection structure 204 is not closed; this portion constitutes the connecting region 411, which corresponds to the portion below the second side plate 2032 of the smoke collection hood 203. Alternatively, the smoke collection device 2 may be entirely housed within the outer casing 4, in which case the entire smoke collection device 2 is higher than the opening 41, making the entire opening 41 the connecting region 411. The baffle plate 4 then closes the connecting region 411, thus allowing the baffle plate 4 to receive the condensed oil flowing downwards from the front and left / right sides of the inner wall of the outer casing 4, preventing it from dripping directly down through the connecting region 411.
[0049] Furthermore, when the smoke collection device 2 is in the fully raised closed state (range hood in smoke extraction mode), the part on the bottom of the outer casing 4 that connects the smoke inlet 201 of the smoke collection device 2 with the outside of the range hood (i.e., the smoke can enter the interior of the outer casing 4 through this part and reach the smoke inlet 201; in this embodiment, the opening 41 is the part located in front of the oil collection structure 204) constitutes the opening 41 or a part of the opening 41, and the part on the bottom of the outer casing 4 that connects the smoke inlet 201 of the smoke collection device 2 with the outside of the range hood is closed by the smoke baffle 5.
[0050] In one feasible embodiment, please refer to Figure 2 A frame structure 7 is provided on the bottom periphery of the second housing 402, which can not only improve the overall cleanliness of the range hood, but also house the control panel and other components in the frame structure 7. The first end of the smoke baffle 5 is rotatably connected to the bottom of the frame structure 7.
[0051] In this embodiment, the mounting structure 202 is a cylindrical structure, with one end of the fan housing 101 located inside the mounting structure 202. This allows the mounting structure 202 to enclose the fan housing 101, enabling oil droplets flowing out of the fan housing 101 to enter the mounting structure 202, then flow into the fume hood 203, and finally into the oil collection structure 204. This prevents oil droplets from falling onto the stovetop and also avoids air leakage. Optionally, the mounting structure 202 is slidably connected to the fan housing 101. Specifically, a guide rail 8 can be provided on the fan housing 101, and a slider 9 slidably connected to the guide rail 8 can be provided on the inner wall of the mounting structure 202. Optionally, the guide rail 8 can be arranged along a first direction, allowing the mounting structure 202 to move up and down along the guide rail 8 based on the slider 9 in the first direction. Optionally, depending on the specific needs, guide rails 8 can be provided on the outer wall of the side plate of the fan housing 101 away from the fan module 102. The number of guide rails 8 can be one or two. To improve the stability of the lifting movement, guide rails 8 can also be provided on two adjacent side plates of the side plate of the fan housing 101 away from the fan module 102. Optionally, guide rails 8 can also be provided on the opposite side plate of the side plate of the fan housing 101 away from the fan module 102. Depending on the position of the guide rails 8, a slider 9 that cooperates with the guide rails 8 is provided on the corresponding mounting structure 202. Optionally, the drive device 3 is located on the fan housing 101, specifically between two guide rails 8 or between multiple guide rails 8, such that the distance between the drive device 3 and each of the multiple guide rails 8 is relatively close. Optionally, the drive device 3 may specifically include a connected drive motor and a telescopic rod. The telescopic rod is connected to the mounting structure 202, so that when the drive motor drives the telescopic rod to extend or retract in the first direction, it can drive the mounting structure 202 connected to the telescopic rod to extend or retract in the first direction.
[0052] Example 2
[0053] Please see Figure 1 This application provides a lifting range hood, which includes a fan device 1, a smoke collection device 2, and a drive device 3; the drive device 3 is connected to the smoke collection device 2 and is used to drive the smoke collection device 2 to move up and down relative to the fan device 1; the smoke collection device 2 includes a smoke inlet 201; the fan device 1 is used to draw smoke from the smoke inlet 201 into the fan device 1 and then discharge it.
[0054] In this embodiment, please refer to Figure 2The lift-type range hood also includes an outer shell 4, with a fan device 1 and a smoke collection device 2 located inside the outer shell 4. Specifically, the outer shell 4 is fixed to the wall, and the fan device 1 is also fixed inside the shell. Optionally, the outer shell 4 includes a first shell 401 and a second shell 402, both of which are cylindrical structures. The fan device 1 is housed inside the first shell 401, and the second shell 402 provides space for the smoke collection device 2. Optionally, the length of the second shell 402 is greater than the length of the first shell 401, and the width of the second shell 402 can be greater than or equal to the width of the first shell 401. Optionally, the first shell 401 can be formed by bending a single plate or by connecting multiple plates to form a cylindrical structure. Similarly, the second shell 402 can be formed by bending a single plate or by connecting multiple plates. Optionally, the first shell 401 and the second shell 402 can be integrally formed.
[0055] In this embodiment, please refer to Figure 3 The range hood also includes a smoke baffle 5 and a connector 6. The smoke baffle 5 has a first end and a second end facing each other. The bottom of the outer casing 4 is rotatably connected to the first end of the smoke baffle 5, and the second end of the smoke baffle 5 is a free end. One end of the connector 6 is connected to the smoke baffle 5, and the other end of the connector 6 is connected to the bottom of the smoke collection device 2. Optionally, the smoke baffle 5 has a first surface and a second surface facing each other. When the range hood is in the closed smoke extraction mode, the first surface is the exposed surface facing the gas stove, and the second surface faces the interior of the range hood. The connector 6 is connected to the second surface. Optionally, to improve the stability of the movement of the smoke baffle 5 during opening and closing, at least two connectors 6 can be provided, one connector 6 on each side of the smoke baffle 5. Optionally, for each connector 6, the connector 6 can be fixedly connected to the smoke baffle 5 and rotatably connected to the bottom of the smoke collection device 2; the connector 6 can be rotatably connected to the smoke baffle 5 and fixedly connected to the bottom of the smoke collection device 2; or the connector 6 can be rotatably connected to the smoke baffle 5 and also rotatably connected to the bottom of the smoke collection device 2.
[0056] In this embodiment, during the process of the driving device 3 driving the smoke collection device 2 to move along the first direction, the free end of the smoke baffle 5 connected to the smoke collection device 2 can be driven to move along the second direction to expose the oil fume inlet 201; the second direction intersects with the first direction. Optionally, the second direction can be an arc direction. During the process of the driving device 3 driving the smoke collection device 2 to move in the opposite direction of the first direction, the free end of the smoke baffle 5 connected to the smoke collection device 2 can be driven to move in the opposite direction of the second direction to block the oil fume inlet 201. The linkage structure of the liftable smoke collection device 2 and the smoke baffle 5 provided in this application allows the smoke baffle 5 to open as the smoke collection device 2 descends, which can expand the smoke collection area, and the smoke baffle 5 to close as the smoke collection device 2 rises, making the range hood more concise in form.
[0057] In this embodiment, please refer to Figure 2 With the smoke collection device 2 fully raised, the smoke baffle 5 flips to a position flush with the bottom of the outer casing 4. At this time, the smoke baffle 5 is flush with the bottom of the cabinet, thus not only concealing the entire range hood but also hiding structures such as the oil filter 2034 at the smoke inlet 201. With the smoke collection device 2 fully lowered, the smoke baffle 5 is fully opened, and the opening angle of the smoke baffle 5 relative to the bottom of the second casing 402 is an obtuse angle, such as 100 degrees.
[0058] In this embodiment, the fan device 1 includes a fan housing 101 and a fan module 102 located inside the fan housing 101; the fan module 102 is in airflow communication with the fume inlet 201. When the range hood is in smoke extraction mode, the fan module 102 can provide suction to draw the fumes from the fume inlet 201. At this time, the smoke collection device 2 descends, the negative pressure zone moves downward, and the smoke extraction effect is ensured.
[0059] In this embodiment, please refer to Figure 5 The smoke collection device 2 includes a connected mounting structure 202 and a smoke collection hood 203; a drive device 3 is connected to the mounting structure 202; under the driving force of the drive device 3, the mounting structure 202 can move up and down relative to the fan housing 101, thereby driving the smoke collection hood 203 to move up and down relative to the fan housing 101. Optionally, please refer to... Figure 6 When the driving device 3 drives the smoke collection device 2 to move in the first direction, it will cause the smoke baffle 5 to open. At this time, the smoke collection hood 203 extends out of the second housing 402 (see [link]). Figure 3 When the driving device 3 drives the smoke collection device 2 to move in the opposite direction of the first direction until the smoke baffle 5 is completely closed, the smoke collection hood 203 retracts into the second housing 402.
[0060] In this embodiment, please refer to Figure 5 The smoke collection device 2 also includes an oil collection structure 204; the oil collection structure 204 is located at the bottom of the smoke collection hood 203, and when the smoke collection device 2 is fully raised, the oil collection structure 204 is hidden in the outer shell 4.
[0061] In this embodiment, the mounting structure 202 is a cylindrical structure, with one end of the fan housing 101 located inside the mounting structure 202. This allows the mounting structure 202 to enclose the fan housing 101, enabling oil droplets flowing out of the fan housing 101 to enter the mounting structure 202, then flow into the fume hood 203, and finally into the oil collection structure 204. This prevents oil droplets from falling onto the stovetop and also avoids air leakage. Optionally, the mounting structure 202 is slidably connected to the first housing 401. Specifically, a guide rail 8 can be provided on the first housing 401, and a slider 9 slidably connected to the guide rail 8 can be provided on the outer wall of the mounting structure 202. Optionally, the guide rail 8 can be arranged along a first direction, allowing the mounting structure 202 to move up and down along the guide rail 8 based on the slider 9 in the first direction. Optionally, depending on the specific needs, guide rails 8 can be provided on the outer wall of the side plate of the first housing 401 away from the fan module 102. The number of guide rails 8 can be one or two. To improve the stability of the lifting movement, guide rails 8 can also be provided on two adjacent side plates of the side plate of the first housing 401 away from the fan module 102. Optionally, guide rails 8 can also be provided on the opposite side plate of the side plate of the fan housing 101 away from the fan module 102. Depending on the position of the guide rails 8, sliders 9 that cooperate with the guide rails 8 are provided on the corresponding mounting structure 202. Optionally, the driving device 3 is located on the first housing 401, specifically between two guide rails 8 or between multiple guide rails 8, such that the distance between the driving device 3 and each of the multiple guide rails 8 is relatively close. Optionally, the drive device 3 may specifically include a connected drive motor and a telescopic rod. The telescopic rod is connected to the mounting structure 202, so that when the drive motor drives the telescopic rod to extend or retract in the first direction, it can drive the mounting structure 202 connected to the telescopic rod to extend or retract in the first direction.
[0062] Example 3
[0063] Please see Figure 1 This application provides a lifting range hood, which includes a fan device 1, a smoke collection device 2, and a drive device 3; the drive device 3 is connected to the smoke collection device 2 and is used to drive the smoke collection device 2 to move up and down relative to the fan device 1; the smoke collection device 2 includes a smoke inlet 201; the fan device 1 is used to draw smoke from the smoke inlet 201 into the fan device 1 and then discharge it.
[0064] In this embodiment, please refer to Figure 2The lift-type range hood also includes an outer shell 4, with a fan device 1 and a smoke collection device 2 located inside the outer shell 4. Specifically, the outer shell 4 is fixed to the wall, and the fan device 1 is also fixed inside the shell. Optionally, the outer shell 4 includes a first shell 401 and a second shell 402, both of which are cylindrical structures. The fan device 1 is housed inside the first shell 401, and the second shell 402 provides space for the smoke collection device 2. Optionally, the length of the second shell 402 is greater than the length of the first shell 401, and the width of the second shell 402 can be greater than or equal to the width of the first shell 401. Optionally, the first shell 401 can be formed by bending a single plate or by connecting multiple plates to form a cylindrical structure. Similarly, the second shell 402 can be formed by bending a single plate or by connecting multiple plates. Optionally, the first shell 401 and the second shell 402 can be integrally formed.
[0065] In this embodiment, please refer to Figure 3 The range hood also includes a smoke baffle 5 and a connector 6. The smoke baffle 5 has a first end and a second end facing each other. The bottom of the outer casing 4 is rotatably connected to the first end of the smoke baffle 5, and the second end of the smoke baffle 5 is a free end. One end of the connector 6 is connected to the smoke baffle 5, and the other end of the connector 6 is connected to the bottom of the smoke collection device 2. Optionally, the smoke baffle 5 has a first surface and a second surface facing each other. When the range hood is in the closed smoke extraction mode, the first surface is the exposed surface facing the gas stove, and the second surface faces the interior of the range hood. The connector 6 is connected to the second surface. Optionally, to improve the stability of the movement of the smoke baffle 5 during opening and closing, at least two connectors 6 can be provided, one connector 6 on each side of the smoke baffle 5. Optionally, for each connector 6, the connector 6 can be fixedly connected to the smoke baffle 5 and rotatably connected to the bottom of the smoke collection device 2; the connector 6 can be rotatably connected to the smoke baffle 5 and fixedly connected to the bottom of the smoke collection device 2; or the connector 6 can be rotatably connected to the smoke baffle 5 and also rotatably connected to the bottom of the smoke collection device 2.
[0066] In this embodiment, during the process of the driving device 3 driving the smoke collection device 2 to move along the first direction, the free end of the smoke baffle 5 connected to the smoke collection device 2 can be driven to move along the second direction to expose the oil fume inlet 201; the second direction intersects with the first direction. Optionally, the second direction can be an arc direction. During the process of the driving device 3 driving the smoke collection device 2 to move in the opposite direction of the first direction, the free end of the smoke baffle 5 connected to the smoke collection device 2 can be driven to move in the opposite direction of the second direction to block the oil fume inlet 201. The linkage structure of the liftable smoke collection device 2 and the smoke baffle 5 provided in this application allows the smoke baffle 5 to open as the smoke collection device 2 descends, which can expand the smoke collection area, and the smoke baffle 5 to close as the smoke collection device 2 rises, making the range hood more concise in form.
[0067] In this embodiment, please refer to Figure 2 With the smoke collection device 2 fully raised, the smoke baffle 5 flips to a position flush with the bottom of the outer casing 4. At this time, the smoke baffle 5 is flush with the bottom of the cabinet, thus not only concealing the entire range hood but also hiding structures such as the oil filter 2034 at the smoke inlet 201. With the smoke collection device 2 fully lowered, the smoke baffle 5 is fully opened, and the opening angle of the smoke baffle 5 relative to the bottom of the second casing 402 is an obtuse angle, such as 100 degrees.
[0068] In this embodiment, the fan device 1 includes a fan housing 101 and a fan module 102 located inside the fan housing 101; the fan module 102 is in airflow communication with the fume inlet 201. When the range hood is in smoke extraction mode, the fan module 102 can provide suction to draw the fumes from the fume inlet 201. At this time, the smoke collection device 2 descends, the negative pressure zone moves downward, and the smoke extraction effect is ensured.
[0069] In this embodiment, please refer to Figure 5 The smoke collection device 2 includes a connected mounting structure 202 and a smoke collection hood 203; a drive device 3 is connected to the mounting structure 202; under the driving force of the drive device 3, the mounting structure 202 can move up and down relative to the fan housing 101, thereby driving the smoke collection hood 203 to move up and down relative to the fan housing 101. Optionally, please refer to... Figure 6 When the driving device 3 drives the smoke collection device 2 to move in the first direction, it will cause the smoke baffle 5 to open. At this time, the smoke collection hood 203 extends out of the second housing 402 (see [link]). Figure 3 When the driving device 3 drives the smoke collection device 2 to move in the opposite direction of the first direction until the smoke baffle 5 is completely closed, the smoke collection hood 203 retracts into the second housing 402.
[0070] In this embodiment, please refer to Figure 5 The smoke collection device 2 also includes an oil collection structure 204; the oil collection structure 204 is located at the bottom of the smoke collection hood 203, and when the smoke collection device 2 is fully raised, the oil collection structure 204 is hidden in the outer shell 4.
[0071] In this embodiment, the mounting structure 202 is a cylindrical structure, with one end extending into the fan housing 101. Optionally, the mounting structure 202 is slidably connected to the fan housing 101. Specifically, a guide rail 8 can be provided on the inner wall of the fan housing 101, and a slider 9 slidably connected to the guide rail 8 can be provided on the outer wall of the mounting structure 202. Optionally, the guide rail 8 can be arranged along a first direction, allowing the mounting structure 202 to move up and down along the guide rail 8 based on the slider 9. Optionally, depending on the needs, a guide rail 8 can be provided on the inner wall of the side plate of the fan housing 101 away from the fan module 102. Specifically, the number of guide rails 8 can be one or two. To improve the stability of the lifting movement, guide rails 8 can also be provided on two adjacent side plates of the side plate of the fan housing 101 away from the fan module 102. Optionally, a guide rail 8 can be provided on the side plate opposite to the side plate of the fan housing 101 away from the fan module 102. Depending on the position of the guide rail 8, a slider 9 cooperating with the guide rail 8 is provided on the corresponding mounting structure 202. Optionally, the drive device 3 is located on the fan housing 101, specifically between two guide rails 8 or between multiple guide rails 8, such that the distance between the drive device 3 and each of the multiple guide rails 8 is relatively close. Optionally, the drive device 3 may specifically include a connected drive motor and a telescopic rod. The telescopic rod is connected to the mounting structure 202, so that when the drive motor drives the telescopic rod to extend and retract in the first direction, it can drive the mounting structure 202 connected to the telescopic rod to extend and retract in the first direction.
[0072] It is understood that in the above embodiments 1, 2 and 3, the guide rail 8 can also be set on the mounting structure 202, and the slider 9 can be set on the fan housing 101 or the first housing 401. Optionally, in order to reduce the weight of the mounting structure 202, when the guide rail 8 or slider 9 is only set on one side or a partial area of the mounting structure 202, the plate of the non-load-bearing area and the area where the guide rail 8 or slider 9 is not set can be cut off. For example, when the guide rail 8 is set on the back plate of the mounting structure 202, the upper area of the other three side plates of the periphery of the mounting structure 202 is removed, and the lower part of the plate of the three sides is retained to provide support for the smoke hood 203 and to allow the mounting structure 202 to wrap around the fan housing 101 so that the oil on the inner wall of the fan housing 101 can drip into the mounting structure 202 and then flow into the oil collection structure 204 from the smoke hood 203.
[0073] The above description is only an optional embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A lift-type range hood, comprising: Outer shell (4); A smoke collection device (2) includes a smoke collection hood (203) having an oil fume inlet (201); and Smoke baffle (5); Its features are: The smoke collection device (2) can move up and down relative to the outer shell (4) along a first direction and in the opposite direction. The first direction is from the lifting range hood toward the gas stove. The bottom of the outer shell (4) has an opening (41) for the smoke collection hood (203) to move up and down. When the lifting range hood is in the fume extraction mode, the bottom of the fume collection hood (203) extends out of the outer shell (4), the fume baffle (5) is in the open state, exposing the fume inlet (201), and a fume collection chamber is formed between the fume baffle (5) and the fume inlet (201). When the lifting range hood is in the smoke extraction mode, the smoke collection hood (203) retracts into the outer shell (4) through at least part of the opening (41) at the bottom of the outer shell (4). At least part of the opening (41) at the bottom of the outer shell (4) allows the interior of the outer shell (4) to remain in fluid communication with the outside of the range hood. This at least part is referred to as the communication area (411). The smoke baffle (5) closes the communication area (411).
2. The lifting range hood according to claim 1, characterized in that: The smoke baffle (5) includes a first end and a second end opposite to each other; the first end of the smoke baffle (5) is rotatably connected to the bottom of the outer shell (4), and the second end of the smoke baffle (5) is a free end, so that when the lifting range hood is in the smoke extraction mode, the front end of the part of the smoke collection device (2) exposed at the bottom of the outer shell (4) is close to the first end of the smoke baffle (5).
3. The lifting range hood according to claim 2, characterized in that: When the lifting range hood is in the smoke extraction mode, the first end of the smoke baffle (5) is located on the rear side of the bottom front end of the outer shell (4).
4. The lifting range hood according to any one of claims 1 to 3, characterized in that: The smoke baffle (5) opens as the smoke collection device (2) descends, and closes as the smoke collection device (2) rises.
5. The lifting range hood according to claim 4, characterized in that: The lifting range hood also includes a connector (6), one end of which is connected to the smoke baffle (5), and the other end of which is connected to the bottom of the smoke collection device (2).
6. The lifting range hood according to claim 4, characterized in that: The lifting range hood also includes a drive device (3), which is used to drive the smoke collection device (2) to run in a first direction so that the bottom of the smoke collection hood (203) extends out of the outer shell (4); the drive device (3) can also drive the smoke collection device (2) to move in the opposite direction of the first direction so that the bottom of the smoke collection hood (203) retracts into the outer shell (4); During the process of the driving device (3) driving the smoke collection device (2) to move along the first direction, the free end of the smoke baffle (5) connected to the smoke collection device (2) can be driven to move along the second direction to expose the oil fume inlet (201); the second direction intersects with the first direction; during the process of the driving device (3) driving the smoke collection device (2) to move in the opposite direction of the first direction, the free end of the smoke baffle (5) connected to the smoke collection device (2) can be driven to move in the opposite direction of the second direction to block the oil fume inlet (201).
7. The lifting range hood according to claim 6, characterized in that: The smoke baffle (5) includes a first end and a second end as the free end. When the range hood is in smoke extraction mode, the second end is located behind the first end. The position of the second end when the range hood is in smoke extraction mode is lower than the position when the range hood is in smoke extraction mode.
8. The lifting range hood according to any one of claims 1 to 3, characterized in that: The smoke collection device (2) also includes an oil collection structure (204) located at the bottom of the smoke collection hood (203). When the smoke collection device (2) is fully raised, the oil collection structure (204) is hidden in the outer shell (4).
9. The lifting range hood according to any one of claims 1 to 3, characterized in that: When the smoke collection device (2) is in a fully lowered state, the smoke baffle (5) is fully opened, and the opening angle of the smoke baffle (5) relative to the bottom of the outer shell (4) is an obtuse angle.
10. The lifting range hood according to any one of claims 1 to 3, characterized in that: The surface of the fume inlet (201) of the fume hood (203) has an acute angle with the top surface of the fume hood (203).
11. A lift-type range hood, comprising: Outer shell (4); A smoke collection device (2) includes a smoke collection hood (203) having a smoke inlet (201) facing the gas stove; and Smoke baffle (5); Its features are: The smoke collection device (2) can move up and down relative to the outer shell (4) along a first direction and in the opposite direction. The first direction is from the lifting range hood toward the gas stove. The surface of the smoke inlet (201) of the smoke collection hood (203) has an acute angle with the top surface of the smoke collection hood (203). When the lifting range hood is in the fume extraction mode, the bottom of the fume collection hood (203) extends out of the outer shell (4), and the fume baffle (5) is in the open state, thus exposing the fume inlet (201); When the range hood is in the smoke extraction mode, the smoke collection hood (203) retracts into the outer shell (4), and the smoke baffle (5) is in a closed state. Thus, the smoke baffle (5) blocks the smoke inlet (201) and closes at least a portion of the opening at the bottom of the outer shell (4) through which the smoke collection hood (203) passes.
12. The lifting range hood according to claim 11, characterized in that: When the range hood is in the smoke extraction mode, the part of the bottom of the outer shell (4) that connects the smoke inlet (201) of the smoke collection device (2) with the outside of the range hood constitutes the opening or part of the opening, and this part of the bottom of the outer shell (4) is closed by the smoke baffle (5).
13. A lift-type range hood, comprising: Outer shell (4); A smoke collection device (2) includes a smoke collection hood (203) having a smoke inlet (201) facing the gas stove; and Smoke baffle (5); Its features are: The smoke collection device (2) can move up and down relative to the outer shell (4) along a first direction and in the opposite direction. The first direction is from the lifting range hood toward the gas stove. The surface of the smoke inlet (201) of the smoke collection hood (203) has an acute angle with the top surface of the smoke collection hood (203). When the lifting range hood is in the fume extraction mode, the bottom of the fume collection hood (203) extends out of the outer shell (4), and the fume baffle (5) is in the open state, thus exposing the fume inlet (201); When the range hood is in the smoke extraction mode, the smoke collection hood (203) retracts into the outer shell (4), the smoke baffle (5) is in a closed state, the smoke baffle (5) blocks the smoke inlet (201), and the smoke baffle (5) blocks the smoke inlet (201) and is flush with the bottom of the outer shell (4).
14. The lifting range hood according to claim 13, characterized in that: When the range hood is in the off-mode, the part of the bottom of the outer casing (4) that connects the smoke inlet (201) of the smoke collection device (2) to the outside of the range hood is closed by the smoke baffle (5).