An oil fume treatment device

Abstract

The present application relates to the technical field of kitchen appliances, and particularly relates to an oil fume treatment device. The oil fume treatment device comprises a smoke gathering mechanism, the smoke gathering mechanism comprises a smoke gathering cover, a first smoke gathering cavity, a second smoke gathering cavity and a driving device, the first smoke gathering cavity has a first air inlet, the second smoke gathering cavity has a second air inlet and is arranged at the rear side of the first smoke gathering cavity, and the driving device can drive the first smoke gathering cavity and the second smoke gathering cavity to synchronously extend or be accommodated in the smoke gathering cover. When the first smoke gathering cavity and the second smoke gathering cavity arranged in front and back extend out of the smoke gathering cover at the same time, the first air inlet and the second air inlet arranged in front and back can simultaneously gather smoke, and the first smoke gathering cavity and the second smoke gathering cavity arranged in front and back can simultaneously gather smoke. The oil fume treatment device with the double air inlets and the double smoke gathering cavities can achieve a better oil fume suction effect compared with the oil fume treatment device with the single air inlet and the single smoke gathering cavity in the prior art.

Description

Technical Field

[0001] This invention relates to the field of kitchen appliance technology, and in particular to an oil fume treatment device. Background Technology

[0002] Existing fume treatment devices typically include a main unit and a fume collection mechanism. The main unit is located at the top of the fume collection mechanism and is connected to it. The fume collection mechanism has an air inlet. The main unit can generate negative pressure, which allows the fumes outside the fume treatment device to pass through the air inlet, the inside of the fume collection mechanism, and the main unit in sequence. The filtered gas is finally discharged from the air outlet of the main unit.

[0003] The smoke collection mechanism includes a smoke collection hood, a single smoke collection chamber, and a drive mechanism. The air inlet is located on the smoke collection chamber. The drive mechanism can switch the smoke collection chamber between a position where it extends downwards from the smoke collection hood and a position where it is retracted into the smoke collection hood. This type of smoke collection mechanism has only a single chamber and a single air inlet, and the smoke extraction effect of this type of fume treatment device is poor.

[0004] Therefore, there is an urgent need to design a new fume treatment device to solve the problem of poor fume extraction efficiency of existing fume treatment devices. Summary of the Invention

[0005] The purpose of this invention is to provide an oil fume treatment device that can effectively improve the oil fume extraction effect of the device.

[0006] To achieve this objective, the present invention adopts the following technical solution: A fume treatment device includes a fume collection mechanism, the fume collection mechanism comprising: Smoke hood; The first smoke collection chamber has a first air inlet; The second smoke collection chamber has a second air inlet and is located behind the first smoke collection chamber; and The driving device can drive the first smoke-collecting chamber and the second smoke-collecting chamber to extend or retract synchronously into the smoke-collecting hood.

[0007] As an optional solution, the smoke collection mechanism further includes: The linkage assembly is movably connected to the second smoke collection chamber, the first smoke collection chamber, and the main unit housing of the fume treatment device. One end of the drive device is movably connected to the smoke collection hood or the main unit housing, and the other end of the drive device is movably connected to the second smoke collection chamber. The linkage assembly can convert the downward movement of the second smoke collection chamber into the forward and downward movement of the first smoke collection chamber.

[0008] As an optional solution, the linkage assembly includes a first linkage, a second linkage, and a third linkage. The main unit, the first linkage, the second linkage, and the second smoke collection chamber are rotatably connected in sequence. One end of the third linkage is rotatably connected to the rod portion of the second linkage, and the other end of the third linkage is rotatably connected to the first smoke collection chamber.

[0009] As an alternative, the first connecting rod is located above the second connecting rod, and the first connecting rod, the second connecting rod, and the third connecting rod are all located on the front side of the second smoke collection chamber; and / or The first smoke-collecting chamber includes a second connecting mechanism, which includes a power plate and a fourth connecting rod disposed thereon. The fourth connecting rod is arranged at an angle to the power plate, and the other end of the third connecting rod is rotatably connected to the fourth connecting rod; and / or The second smoke-collecting chamber includes a smoke-collecting chamber body and an extension rod, the extension rod being formed by extending upward from the upper end of the smoke-collecting chamber body, and the second connecting rod being rotatably connected to the upper end of the extension rod; and / or The connection point between the first link and the second link is the first connection point U, the connection point between the second link and the third link is the second connection point V, and the connection point between the second link and the second smoke collection chamber is the third connection point W. The length of UV is the first length L1, the length of VW is the second length L2, and L1 / L2 is 1 / 6 to 1 / 2.

[0010] As an optional solution, when both the first smoke-collecting cavity and the second smoke-collecting cavity are housed within the smoke-collecting hood, the first lowest position of the first smoke-collecting cavity is approximately flush with the second lowest position of the second smoke-collecting cavity; and / or When both the first smoke-collecting chamber and the second smoke-collecting chamber are in the extended state of the smoke-collecting hood, the first lowest position of the first smoke-collecting chamber is higher than the second lowest position of the second smoke-collecting chamber; and / or When both the first smoke-collecting chamber and the second smoke-collecting chamber are in the extended state of the smoke-collecting hood, the first maximum distance of the first smoke-collecting chamber in the front-back direction is greater than the second maximum distance of the second smoke-collecting chamber in the front-back direction.

[0011] As an alternative, during the process of switching the first smoke-collecting chamber from a position housed within the smoke-collecting hood to a position extending beyond the smoke-collecting hood, the space inside the first smoke-collecting chamber gradually increases.

[0012] As an optional solution, the smoke collection mechanism further includes: The flap is connected to the first smoke collection chamber via a transmission mechanism. As the first smoke collection chamber extends out of the smoke collection hood, it simultaneously drives the flap to open the first air inlet.

[0013] As an optional solution, the first smoke collection chamber includes a movable chamber body, a first connecting mechanism, and a second connecting mechanism. The second connecting mechanism is located behind the first connecting mechanism. The upper ends of both the first and second connecting mechanisms are movably connected to the smoke collection hood, and the lower ends of both the first and second connecting mechanisms are movably connected to the movable chamber body.

[0014] As an optional solution, when both the first smoke collection chamber and the second smoke collection chamber are in a state of extending out of the smoke collection hood, a third smoke collection chamber is formed between the first smoke collection chamber and the second smoke collection chamber. The third smoke collection chamber is located upstream of the second air inlet and is connected to the second air inlet.

[0015] As an optional solution, during the process of the first smoke-collecting chamber changing from a position housed within the smoke-collecting hood to a position extending beyond the smoke-collecting hood, the volume of the third smoke-collecting chamber increases; and / or When the first smoke-collecting chamber is in the position extending beyond the smoke-collecting hood, the cross-sectional area of ​​the third smoke-collecting chamber gradually increases; and / or The third smoke-collecting chamber has a third air inlet. During the process of the first smoke-collecting chamber switching from a position housed within the smoke-collecting hood to a position extending beyond the smoke-collecting hood, the area of ​​the third air inlet increases and flips forward and downward; and / or The smoke collection hood includes a smoke collection hood body and a baffle. The baffle is disposed in the smoke collection hood body. When both the first smoke collection chamber and the second smoke collection chamber are extended out of the smoke collection hood, the first smoke collection chamber, the baffle, and the second smoke collection chamber together form the third smoke collection chamber, which has only a third air inlet; or The smoke collection hood includes a smoke collection hood body and a first filtering mechanism. The first filtering mechanism is disposed on the smoke collection hood body and has a first filter screen and a second filter screen. The oil fumes are divided into a first oil fume path Y1, a second oil fume path Y2, and a third oil fume path Y3. When both the first smoke collection chamber and the second smoke collection chamber are extended out of the smoke collection hood, wherein: The first path of oil fume Y1 flows sequentially through the first air inlet and the first filter screen into the main unit of the oil fume treatment device; and / or The second path of oil fume Y2 flows sequentially through the third air inlet of the third smoke collection chamber and the second filter before entering the main unit of the oil fume treatment device; and / or The third path of oil fume Y3 enters the main unit of the oil fume treatment device after passing through the second air inlet.

[0016] The beneficial effects of this invention are: The fume treatment device provided by this invention includes a fume collection mechanism, which comprises a fume hood, a first fume collection chamber, a second fume collection chamber, and a driving device. The first fume collection chamber has a first air inlet, and the second fume collection chamber has a second air inlet and is located behind the first fume collection chamber. The driving device can drive the first and second fume collection chambers to extend or retract synchronously into the fume hood. When the first and second fume collection chambers, arranged front and rear, extend simultaneously from the fume hood, the first and second air inlets located at the front and rear can simultaneously allow fume to enter, and the first and second fume collection chambers located at the front and rear can also simultaneously allow fume to enter. Compared with the existing fume treatment devices with a single air inlet and a single fume collection chamber, the fume treatment device with "dual air inlets" and "dual fume collection chambers" can achieve better fume extraction, thereby achieving better absorption of fume, better ensuring the cleanliness of the kitchen, and improving the user's experience during cooking.

[0017] Furthermore, the fume treatment device of the present invention can drive the first fume collection chamber and the second fume collection chamber to work synchronously and collaboratively with only one drive device. The drive device has a simple structure, low cost and reduces the internal installation space occupied, making the internal layout of the fume treatment device more compact and conducive to the overall miniaturization design of the fume treatment device.

[0018] Furthermore, the first and second smoke collection chambers can be synchronized and coordinated using only one drive device, which avoids the problem of asynchronous operation of the first and second smoke collection chambers caused by setting multiple drive structures, and avoids interference between the first and second smoke collection chambers during operation. Attached Figure Description

[0019] Figure 1 This is a structural diagram of a concealed range hood provided by existing technology; Figure 2 This is a schematic diagram of the concealed range hood in the first position according to Embodiment 1 of the present invention; Figure 3 This is a schematic diagram of the cabinet and the hidden range hood in the first position provided in Embodiment 1 of the present invention; Figure 4 This is a structural schematic diagram of the cabinet and the hidden range hood in the second position provided in Embodiment 1 of the present invention; Figure 5 This is a first cross-sectional view of the concealed range hood provided in Embodiment 1 of the present invention; Figure 6 This is a second sectional view of the concealed range hood provided in Embodiment 1 of the present invention; Figure 7 This is a first partial enlarged view of the concealed range hood provided in Embodiment 1 of the present invention; Figure 8 This is a second partial enlarged view of the concealed range hood provided in Embodiment 1 of the present invention; Figure 9 This is a schematic diagram of the structure of the second connecting mechanism provided in Embodiment 1 of the present invention; Figure 10 This is a schematic diagram of the structure of a partially concealed range hood provided in Embodiment 1 of the present invention; Figure 11 This is a partial enlarged view of the concealed range hood provided in Embodiment 1 of the present invention; Figure 12 This is a schematic diagram of the concealed range hood provided in Embodiment 1 of the present invention; Figure 13 This is a first partial enlarged view of the concealed range hood provided in Embodiment 2 of the present invention; Figure 14 This is a cross-sectional view of the concealed range hood provided in Embodiment 2 of the present invention; Figure 15 This is a schematic diagram of the partially concealed range hood provided in Embodiment 3 of the present invention; Figure 16 This is a schematic diagram of the structure of the first connecting mechanism provided in Embodiment 3 of the present invention; Figure 17 This is a schematic diagram of the first structure of a partially concealed range hood provided in Embodiment 4 of the present invention; Figure 18 This is a schematic diagram of the second structure of a partially concealed range hood provided in Embodiment 4 of the present invention; Figure 19 This is a cross-sectional view of the concealed smoke hood provided in Embodiment 5 of the present invention.

[0020] In the picture: 1000, Concealed range hood; 2000, Cabinet; 2100, Installation cavity; 100. Smoke collection mechanism; 200. Main unit housing; 300. Oil cup; 3101. Second opening; 10. Smoke hood; 11. Front panel; 12. Back panel; 13. First filter mechanism; 131. First filter screen; 1311. First filter hole; 1311a. Tail end; 132. Second filter screen; 14. Baffle; 141. Guide section; 142. Limiting section; 20. First smoke collection chamber; 21. Movable chamber body; 211. First air inlet; 22. First connecting mechanism; 224. First hinge point; 225. Second hinge point; 226. Third hinge point; 227. Clearance space; 23. Second connecting mechanism; 231. Power plate; 232. Guide channel; 2321. Upper opening; 2322. Lower opening; 233. Fourth connecting rod; 24. Pivot shaft; 241. Clearance opening; 30. Second smoke collection chamber; 31. Second air inlet; 32. Smoke collection chamber body; 321. Second oil drain; 33. Extension rod; 40. Flip-up panel; 41. Fifth hinge point; 42. Eighth hinge point; 50. Smoke containment space; 60. Drive unit; 611. Linear drive body; 612. Output shaft; 62. Flip-plate drive mechanism; 70. Third smoke collection chamber; 71. Third air inlet; 500. Second filtration mechanism; 600. Guiding mechanism; 700. Connecting rod; 710. Fourth hinge point; 720. Sixth hinge point; 730. Seventh hinge point; 800, Link assembly; 810, First link; 820, Second link; 830, Third link. Detailed Implementation

[0021] The technical solution of the present invention will be further described below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the present invention are shown in the accompanying drawings, not all of them.

[0022] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0023] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0024] In the description of the embodiments disclosed herein, terms such as "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no special meaning.

[0025] Example 1 like Figure 2 As shown, this embodiment of the present disclosure provides an oil fume treatment device, which includes a main unit 200 and a smoke collection mechanism 100. The main unit 200 is disposed at the upper end of the smoke collection mechanism 100 and is connected to the smoke collection mechanism 100. The smoke collection mechanism 100 is provided with a first air inlet 211. The main unit 200 can generate negative pressure, which allows oil fumes from outside the oil fume treatment device to pass sequentially through the first air inlet 211, the interior of the smoke collection mechanism 100, and the main unit 200. The filtered gas is finally discharged from the air outlet of the main unit 200. This oil fume treatment device can be a top-mounted range hood, a side-mounted range hood, a concealed range hood, etc. All devices capable of achieving oil fume treatment functions are included in this optional embodiment. This embodiment of the present disclosure mainly uses a concealed range hood 1000 as an example for description.

[0026] In an alternative embodiment, such as Figures 2-4 As shown, the smoke collection mechanism 100 includes a smoke collection hood 10 and a first smoke collection chamber 20. The main unit 200 and the smoke collection hood 10 are housed in the mounting cavity 2100 of the cabinet 2000. The cabinet 2000 can effectively conceal the main unit 200 and the smoke collection hood 10, preventing them from being exposed in the kitchen environment and ensuring the aesthetics of the kitchen. Figures 2-6 As shown, the first air inlet 211 is located on the first smoke collection chamber 20. The first smoke collection chamber 20 and the smoke collection hood 10 together form the smoke collection space 50. The first smoke collection chamber 20 can switch between a first position where it is stored in the smoke collection hood 10 and a second position where it extends out of the smoke collection hood 10. When the first smoke collection chamber 20 is in the first position, the cabinet 2000 can also achieve a good hiding effect on the first smoke collection chamber 20. When the first smoke collection chamber 20 is in the second position, the first air inlet 211 can be closer to the oil fumes, thereby achieving a better absorption effect of the hidden range hood 1000 on the oil fumes and improving the oil fume absorption effect of the hidden range hood 1000.

[0027] In summary, as Figures 2-4As shown, the concealed range hood 1000 maintains a small size when it is in the storage state, while also increasing the smoke extraction area when in the second position, effectively improving the smoke extraction effect of the concealed range hood 1000. The downward movement of the first air inlet 211 further enhances the smoke extraction effect of the concealed range hood 1000, enabling better absorption of high-concentration smoke.

[0028] The concealed range hood 1000 is particularly suitable for modern integrated kitchens. When off, its hidden design allows for fully integrated installation with custom cabinetry (2000), making it visually invisible and achieving a balance between function and aesthetics. This deep integration not only frees up space compared to traditional top-mounted or side-mounted range hoods, but is also ideal for open kitchens and small to medium-sized kitchens that prioritize minimalism. It seamlessly integrates fume extraction with the kitchen workspace, creating a spacious, clean, and high-quality cooking environment while efficiently removing smoke.

[0029] In an alternative embodiment, such as Figures 2-6 As shown, the concealed range hood 1000 also includes an oil cup 300, which is connected to the interior of the smoke collection mechanism 100. The oil cup 300 can collect the oil flowing out from the main unit 200 and the smoke collection mechanism 100, which can prevent the oil inside the concealed range hood 1000 from dripping onto the stovetop and ensure that the stovetop is always clean.

[0030] In an alternative embodiment, such as Figures 2-4 As shown, the smoke collection mechanism 100 also includes a flap 40, which can, as Figure 2 The recovery state shown and as Figure 4 The diagram shows the switching between the extended and unfolded states. (Example) Figure 2 As shown, when the flip panel 40 is in the retracted state, the concealed range hood 1000 can be well hidden in the cabinet 2000, preventing the main unit 200 and the smoke collection hood 10 from being exposed in the kitchen environment, thus ensuring the aesthetics of the kitchen environment. Figure 4 As shown, when the flap 40 is in the extended state, the flap 40 can form a certain space for oil fumes to gather, thereby achieving a better oil fume extraction effect for the hidden range hood 1000.

[0031] In existing technologies, such as Figure 1 As shown, the smoke collection mechanism includes a smoke collection hood 10, a single first smoke collection chamber 20, and a drive mechanism. A first air inlet 211 is opened on the first smoke collection chamber 20. The drive mechanism enables the first smoke collection chamber 20 to switch between a first position where it extends downward out of the smoke collection hood 10 and a second position where it is stored in the smoke collection hood 10. This type of smoke collection mechanism has only a single chamber and a single air inlet, and the smoke extraction effect of this type of concealed smoke hood is poor.

[0032] To address the aforementioned problems, this disclosure provides a concealed smoke hood 1000. The concealed smoke hood 1000 includes a smoke gathering mechanism 100, which comprises a smoke gathering hood 10, a first smoke gathering chamber 20, a second smoke gathering chamber 30, and a driving device 60. The first smoke gathering chamber 20 has a first air inlet 211, and the second smoke gathering chamber 30 has a second air inlet 31 and is located behind the first smoke gathering chamber 20. The driving device 60 can drive the first smoke gathering chamber 20 and the second smoke gathering chamber 30 to simultaneously extend or retract into the smoke gathering hood 10. The first smoke gathering chamber 20 and the second smoke gathering chamber 30 are arranged in a front-to-back configuration. When both air inlets 211 and 31 extend from the fume hood 10, smoke can enter simultaneously, as can smoke can enter simultaneously from the first air inlet 211 and the second air inlet 31 located at the front and rear. The first smoke collection chamber 20 and the second smoke collection chamber 30 located at the front and rear, respectively, can also enter simultaneously. Compared with the hidden fume hood 1000 with a single air inlet and a single smoke collection chamber in the prior art, the "dual air inlet" and "dual smoke collection chamber" of this embodiment can achieve a better oil fume absorption effect, thereby achieving a better absorption effect for oil fumes, better ensuring the cleanliness of the kitchen, and improving the user's better user experience during cooking.

[0033] Furthermore, the concealed smoke hood 1000 of this embodiment can drive the first smoke collection chamber 20 and the second smoke collection chamber 30 to work synchronously and collaboratively with only one drive device 60. The drive device 60 has a simple structure, low cost and reduces the internal installation space occupied, making the internal layout of the concealed smoke hood 1000 more compact, which is conducive to the overall miniaturization design of the concealed smoke hood 1000.

[0034] Furthermore, the first smoke collection chamber 20 and the second smoke collection chamber 30 can be synchronized and coordinated by only one drive device 60, which can avoid the asynchronous operation of the first smoke collection chamber 20 and the second smoke collection chamber 30 caused by setting multiple drive structures, and avoid the problem of interference between the first smoke collection chamber 20 and the second smoke collection chamber 30 during operation.

[0035] In an alternative embodiment, such as Figure 5 and Figure 6 As shown, the smoke gathering mechanism 100 also includes a connecting rod assembly 800. The connecting rod assembly 800 is movably connected to the second smoke gathering chamber 30, the first smoke gathering chamber 20, and the main unit housing 200 of the concealed smoke machine 1000. One end of the driving device 60 is movably connected to the smoke gathering hood 10 or the main unit housing 200, and the other end of the driving device 60 is movably connected to the second smoke gathering chamber 30. Through the good transmission effect of the connecting rod assembly 800, only one set of driving devices 60 is required to realize the linkage between the first smoke gathering chamber 20 and the second smoke gathering chamber 30. That is, only one set of driving devices 60 is required to realize the synchronous movement of the first smoke gathering chamber 20 and the second smoke gathering chamber 30.

[0036] In an alternative embodiment, such as Figure 5 and Figure 6 As shown, the linkage assembly 800 can convert the downward movement of the second smoke collection chamber 30 into the forward and downward movement of the first smoke collection chamber 20 and the forward and downward movement of the first air inlet 211. When the first smoke collection chamber 20 is in the second position, the first air inlet 211 is in a lower and forward position, making the first air inlet 211 closer to the smoke source, effectively improving the smoke extraction effect of the hidden range hood 1000.

[0037] In an alternative embodiment, such as Figure 5 and Figure 6 As shown, the first smoke collection chamber 20 has a first position where it is housed in the smoke collection hood 10 and a second position where it extends out of the smoke collection hood 10. The second smoke collection chamber 30 has a third position where it is housed in the smoke collection hood 10 and a fourth position where it extends out of the smoke collection hood 10. During the process of the first smoke collection chamber 20 switching from the first position to the second position, the first air inlet 211 moves forward and downward at the same time. When the first smoke collection chamber 20 is in the second position, the first air inlet 211 is in a lower and forward position, so that the first air inlet 211 is closer to the smoke source, effectively improving the smoke extraction effect of the hidden range hood 1000.

[0038] In an alternative embodiment, such as Figure 5 and Figure 6 As shown, the first smoke-collecting chamber 20 includes a movable chamber body 21, a first connecting mechanism 22, and a second connecting mechanism 23. The second connecting mechanism 23 is located behind the first connecting mechanism 22. The upper ends of the first connecting mechanism 22 and the second connecting mechanism 23 are movably connected to the smoke-collecting hood 10, and the lower ends of the first connecting mechanism 22 and the second connecting mechanism 23 are movably connected to the movable chamber body 21. The first smoke-collecting chamber 20 is movably connected to the connecting rod assembly 800. During the switching process between the third and fourth positions of the second smoke-collecting chamber 30, under the transmission action of the connecting rod assembly 800, the first smoke-collecting chamber 20 can switch between the first and second positions. The action of switching between different working states of the hidden smoke machine 1000 is simple, and the hidden smoke machine 1000 can quickly switch between different working states.

[0039] Because the volume of the first smoke-collecting chamber 20 in the existing concealed smoke hood 1000 remains constant, if the first smoke-collecting chamber 20 is designed to be larger, the smoke-collecting mechanism 100 and the concealed smoke hood 1000 in the closed state will be larger; if the first smoke-collecting chamber 20 is designed to be smaller, the smoke-collecting effect of the smoke-collecting mechanism 100 and the concealed smoke hood 1000 in the working state will be poor.

[0040] To solve the above problems, such as Figure 5 and Figure 6As shown, in an optional embodiment, during the process of switching the first smoke-collecting chamber 20 from a first position housed within the smoke-collecting hood 10 to a second position extending beyond the smoke-collecting hood 10, the internal space of the first smoke-collecting chamber 20 gradually increases. That is, when the hidden range hood 1000 is in a non-working state, the first smoke-collecting chamber 20 is in the first position, in a retracted state, ensuring a small volume when the hidden range hood 1000 is not in operation; when the hidden range hood 1000 is in operation, the first smoke-collecting chamber 20 is in the second position, in an extended state, ensuring good smoke extraction performance during use. In summary, the hidden range hood 1000 of this embodiment can ensure both good smoke extraction performance during use and a small volume when not in operation.

[0041] In an alternative embodiment, such as Figures 5-9 As shown, during the process of switching the first smoke-collecting chamber 20 from the unfolded state to the retracted state, the first smoke-collecting chamber 20 switches from the second position to the first position. The hidden smoke hood 1000 of this embodiment can not only ensure a good smoke extraction effect during use, but also ensure a small volume when not in operation.

[0042] In an alternative embodiment, such as Figure 5 and Figure 6 As shown, the drive device 60 includes a linear drive body 611 and an output shaft 612. The output shaft 612 can perform linear extension and retraction relative to the linear drive body 611. One of the output shaft 612 and the linear drive body 611 is connected to the main unit 200 or the smoke hood 10, and the other of the output shaft 612 and the linear drive body 611 is connected to the second smoke collection chamber 30. The drive device 60 can drive the second smoke collection chamber 30 to move in the up and down direction, thereby realizing the switching of the second smoke collection chamber 30 between the third position and the fourth position.

[0043] In an alternative embodiment, such as Figure 5 and Figure 6 As shown, one of the output shaft 612 and the linear drive body 611 is rotatably connected to the main unit 200 or the smoke hood 10, and the other is rotatably connected to the second smoke collection chamber 30. The two rotatably connected configurations allow for slight deviations in the second smoke collection chamber 30 during movement, effectively preventing jamming during movement and ensuring smooth movement of the second smoke collection chamber 30.

[0044] For example, the drive device 60 can be a linear motor, a linear cylinder, a lead screw and nut assembly, a gear and rack assembly, etc. All drive devices 60 that can realize the movement of the second smoke collection chamber 30 in the vertical direction are within the protection scope of this optional embodiment. The embodiments disclosed herein will not be described in detail.

[0045] In an alternative embodiment, such as Figures 5-7 As shown, the linkage assembly 800 includes a first linkage 810, a second linkage 820, and a third linkage 830. The main unit 200, the first linkage 810, the second linkage 820, and the second smoke collection chamber 30 are rotatably connected in sequence. One end of the third linkage 830 is rotatably connected to the rod portion of the second linkage 820, and the other end of the third linkage 830 is rotatably connected to the first smoke collection chamber 20. When the second smoke collection chamber 30 moves from top to bottom, the linkage assembly 800 can drive the first smoke collection chamber 20 to move forward and downward; when the second smoke collection chamber 30 moves from bottom to top, the linkage assembly 800 can drive the first smoke collection chamber 20 to move upward and backward. In summary, through the design of the linkage assembly 800 structure described above, the movement of the second smoke collection chamber 30 switching between the third and fourth positions can be effectively converted into the movement of the first smoke collection chamber 20 switching between the first and second positions.

[0046] For example, such as Figures 5-7 As shown, the other end of the third link 830 can be rotatably connected to any one of the movable cavity body 21, the first connecting mechanism 22, and the second connecting mechanism 23. Regardless of which of the three links 830 is rotatably connected to, the link assembly 800 can transmit driving force to the first smoke collection chamber 20.

[0047] For example, such as Figure 5 and Figure 6 As shown, since the second smoke collection chamber 30 is located at the rear, the third connecting rod 830 is rotatably connected to the second connecting mechanism 23 at the rear side, which can effectively shorten the length of the third connecting rod 830. The connecting rod assembly 800 has a simple structure, low cost and reduces the internal installation space occupied, making the internal layout of the hidden smoke hood 1000 more compact, which is conducive to the overall miniaturization design of the hidden smoke hood 1000.

[0048] In an alternative embodiment, such as Figure 5 and Figure 6As shown, the first link 810 is located above the second link 820. The first link 810, the second link 820, and the third link 830 are all located on the front side of the second smoke collection chamber 30. Through the above-mentioned arrangement of the first link 810, the second link 820, and the third link 830, interference between the link assembly 800 and other components during the state switching process can be avoided, ensuring that the first smoke collection chamber 20 and the second smoke collection chamber 30 extend or retract into the smoke collection hood 10 synchronously and smoothly.

[0049] In an alternative embodiment, such as Figures 5-7 As shown, since the movement trajectory of the second link 820 is different from that of the second connecting mechanism 23, if the second link 820 and the second connecting mechanism 23 are rotatably connected, interference between the second link 820 and the second connecting mechanism 23 will occur, causing the switching of the link assembly 800 to become stuck. To solve the above problem, the second connecting mechanism 23 includes a power plate 231 and a fourth link 233 disposed thereon. The fourth link 233 and the power plate 231 are arranged at an angle. The link assembly 800 also includes a third link 830. One end of the third link 830 is rotatably connected to the second link 820, and the other end of the third link 830 is rotatably connected to the fourth link 233. By rotatably connecting the third link 830 to both the second link 820 and the second connecting mechanism 23, interference between the second link 820 and the second connecting mechanism 23 during movement can be avoided.

[0050] In an alternative embodiment, such as Figures 5-7 As shown, the second smoke collection chamber 30 includes a smoke collection chamber body 32 and an extension rod 33. The extension rod 33 is formed by extending upward from the upper end of the smoke collection chamber body 32. The second connecting rod 820 is rotatably connected to the upper end of the extension rod 33, which can effectively shorten the length of the second connecting rod 820. The connecting rod assembly 800 has a simple structure, low cost, and reduces the internal installation space occupied, making the internal layout of the hidden smoke hood 1000 more compact, which is conducive to the overall miniaturization design of the hidden smoke hood 1000.

[0051] In an alternative embodiment, such as Figure 7As shown, the connection point between the first link 810 and the second link 820 is the first connection point U; the connection point between the second link 820 and the third link 830 is the second connection point V; and the connection point between the second link 820 and the second smoke-collecting chamber 30 is the third connection point W. When the link assembly 800 switches from the converged state to the extended state, the second link 820 rotates counterclockwise. When the second link 820 rotates counterclockwise by a preset angle, the downward movement distance of W is greater than the downward movement distance of V. Since the position of V mainly determines the downward movement of the first smoke-collecting chamber 20... The displacement, specifically the position of W, primarily determines the downward movement of the second smoke-collecting chamber 30. In other words, when the second connecting rod 820 rotates by a preset angle, the second smoke-collecting chamber 30 descends a greater distance than the first smoke-collecting chamber 20. This means that when both the first and second smoke-collecting chambers 20 and 30 are extended from the smoke hood 10, the first lowest position of the first smoke-collecting chamber 20 is higher than the second lowest position of the second smoke-collecting chamber 30. Because the second smoke-collecting chamber 30 is positioned further back, its lower descent prevents interference with the cookware and achieves better smoke absorption. Therefore, through the design of the connecting rod assembly 800, the extended first and second smoke-collecting chambers 20 and 30 can achieve better smoke absorption without interfering with the cookware.

[0052] For example, in this embodiment, the length of the UV is a first length L1, the length of the VW is a second length L2, and the ratio of L1 to L2 is 1 / 6 to 1 / 2. When the first smoke-collecting chamber 20 is in the second position and the second smoke-collecting chamber 30 is in the fourth position, the second smoke-collecting chamber 30 extends downward more than the first smoke-collecting chamber 20, thereby achieving a better overall smoke extraction effect for the concealed range hood 1000. Specifically, L1 / L2 can be 1 / 6, 1 / 5, 1 / 4, 1 / 3, 1 / 2, etc. All L1 / L2 values ​​within the range of 1 / 6 to 1 / 2 are within the protection scope of this optional embodiment, and will not be described in detail in this application.

[0053] In an optional embodiment, when both the first smoke-collecting chamber 20 and the second smoke-collecting chamber 30 are housed within the smoke-collecting hood 10, the first lowest position of the first smoke-collecting chamber 20 is approximately flush with the second lowest position of the second smoke-collecting chamber 30; and / or When both the first smoke-collecting chamber 20 and the second smoke-collecting chamber 30 are in the extended smoke-collecting hood 10 state, the first maximum distance of the first smoke-collecting chamber 20 in the front-back direction is greater than the second maximum distance of the second smoke-collecting chamber 30 in the front-back direction.

[0054] In an alternative embodiment, such as Figure 5As shown, when the first smoke-collecting chamber 20 is in the first position and the second smoke-collecting chamber 30 is in the third position, the first lowest position of the first smoke-collecting chamber 20 and the second lowest position of the second smoke-collecting chamber 30 are approximately flush. When the hidden smoke machine 1000 is in the off state, both the first smoke-collecting chamber 20 and the second smoke-collecting chamber 30 can be completely hidden in the smoke-collecting hood 10, achieving a good concealment effect for the first smoke-collecting chamber 20 and the second smoke-collecting chamber 30. In addition, the smoke-collecting hood 10 can be designed with dimensions according to the first smoke-collecting chamber 20 being in the first position and the second smoke-collecting chamber 30 being in the third position, so the overall volume of the smoke-collecting hood 10 can be designed to be smaller, and the overall volume of the hidden smoke machine 1000 is also smaller.

[0055] In an optional embodiment, since the amount of oil fumes is greater on the front side and less on the rear side, such as Figure 6 As shown, the first maximum distance of the first smoke-collecting chamber 20 along the front-to-back direction can be set to be greater than the second maximum distance of the second smoke-collecting chamber 30 along the front-to-back direction. The internal volume of the first smoke-collecting chamber 20 is larger than the internal volume of the second smoke-collecting chamber 30, thereby achieving a better absorption effect of the first smoke-collecting chamber 20 on the more distributed oil fumes. At the same time, the second smoke-collecting chamber 30, while having a smaller volume, can still ensure a good absorption effect on the less distributed oil fumes located at the rear. In summary, through the aforementioned structural design, the concealed range hood 1000 can be kept in a small volume while still achieving a good absorption effect on oil fumes.

[0056] In an alternative embodiment, such as Figures 5-6 As shown, the smoke hood 10 also includes a first filter mechanism 13, which is located downstream of the first air inlet 211. The first filter mechanism 13 can perform preliminary filtration of the oil fumes entering from the first air inlet 211, thereby effectively improving the filtration effect of the concealed smoke hood 1000 on oil fumes.

[0057] In an alternative embodiment, such as Figures 5-6 As shown, the smoke collection mechanism 100 also includes a second filter mechanism 500. The second filter mechanism 500 is disposed at the first air inlet 211. When the first smoke collection chamber 20 is in the second position, part of the first filter mechanism 13 is disposed downstream of the first air inlet 211. The first air inlet 211 is in a forward position. The overall concentration of oil fumes entering from the first air inlet 211 is relatively large. The oil fumes entering from the first air inlet 211 pass through the second filter mechanism 500 and the first filter mechanism 13 in sequence before entering the main unit box 200. The two-stage filtration structure composed of the second filter mechanism 500 and the first filter mechanism 13 can achieve a good preliminary filtration effect for high-concentration oil fumes, thereby achieving an effective filtration effect for oil fumes entering from the first air inlet 211.

[0058] For example, the second filter mechanism 500 and the first filter mechanism 13 can be filter screens, filter surfaces or other structures that can effectively filter oil fumes, which will not be described in detail in this embodiment.

[0059] In an alternative embodiment, such as Figure 6 As shown, when the first smoke collection chamber 20 is in the second position and the second smoke collection chamber 30 is in the fourth position, the oil fumes are divided into a first oil fume Y1 and a third oil fume Y3. The first oil fume Y1 flows through the first air inlet 211 and the first filter screen 131 in sequence before entering the main unit box 200 of the hidden range hood 1000. The third oil fume Y3 enters the main unit box 200 of the hidden range hood 1000 after passing through the second air inlet 31. Through the synchronous flow of the first oil fume Y1 and the third oil fume Y3, the hidden range hood 1000 can achieve a large amount of oil fume absorption effect and better absorption effect.

[0060] In an alternative embodiment, such as Figure 6 As shown, when the first smoke collection chamber 20 is in the second position and the second smoke collection chamber 30 is in the fourth position, a third smoke collection chamber 70 is formed between the first smoke collection chamber 20 and the second smoke collection chamber 30. The third smoke collection chamber 70 is located upstream of the second air inlet 31 and is connected to the second air inlet 31. The third smoke collection chamber 70 can better gather and collect the oil fumes with weak flow velocity and low power upstream of the second air inlet 31, preventing the oil fumes upstream of the second air inlet 31 from overflowing from the left and right sides. The oil fumes gathered in the third smoke collection chamber 70 can be better drawn back into the second air inlet 31 and then flow into the main unit box 200, enhancing the oil fume absorption effect of the third oil fume Y3. The setting of the third smoke collection chamber 70 can better prevent the oil fumes from overflowing from the rear side of the hidden range hood 1000, and can achieve a better oil fume absorption effect of the hidden range hood 1000.

[0061] In an alternative embodiment, such as Figure 5 and Figure 6 As shown, during the process of the first smoke-collecting chamber 20 switching from the first position stored in the smoke-collecting hood 10 to the second position extending out of the smoke-collecting hood 10, the volume of the third smoke-collecting chamber 70 increases. That is to say, the third smoke-collecting chamber 70 increases in volume along with the first smoke-collecting chamber 20 and the second smoke-collecting chamber 30. The larger volume of the third smoke-collecting chamber 70, the first smoke-collecting chamber 20, and the second smoke-collecting chamber 30 work together to achieve a better absorption effect for larger amounts of oil fumes. The volumes of the first smoke-collecting chamber 20, the second smoke-collecting chamber 30, and the third smoke-collecting chamber 70 are interconnected and can increase with the increase of oil fume concentration, so that the hidden range hood 1000 can always achieve a good effect on oil fumes of different concentrations.

[0062] In an alternative embodiment, such as Figure 5 and Figure 6As shown, when the first smoke-collecting chamber 20 is in the position extending from the smoke-collecting hood 10, the cross-sectional area of ​​the third smoke-collecting chamber 70 gradually increases and the cross-section of the third smoke-collecting chamber 70 narrows, the airflow accelerates, and the third smoke-collecting chamber 70 has a funnel-shaped structure that is wider at the bottom and narrower at the top. This causes the flow channel to narrow continuously when the fumes are sucked from the stove. According to the fluid continuity equation, this will cause the speed of the fumes airflow to gradually increase from bottom to top. As the speed increases, the negative pressure is enhanced. When the airflow speed increases, according to Bernoulli's principle, the air pressure in this area will decrease accordingly, forming a stronger negative pressure zone. This low-pressure zone can more effectively suck the fumes below into the range hood, realizing the Venturi effect, so that the fumes collected by the third smoke-collecting chamber 70 can better enter the second smoke-collecting chamber 30 through the second air inlet 31.

[0063] In an optional embodiment, the third smoke-collecting chamber 70 has a third air inlet 71. During the process of the first smoke-collecting chamber 20 switching from a first position housed within the smoke-collecting hood 10 to a second position extending beyond the smoke-collecting hood 10, the volumes of the first smoke-collecting chamber 20 and the second smoke-collecting chamber 30 gradually increase, thereby enhancing the smoke absorption effect of the concealed range hood 1000. The concealed range hood 1000 can absorb more smoke. Simultaneously, the area of ​​the third air inlet 71 increases and flips forward and downward, further enhancing the smoke absorption effect of the concealed range hood 1000. In summary, the adjustment of the area of ​​the third air inlet 71 corresponds to the changes in the volume of the first smoke-collecting chamber 20 and the second smoke-collecting chamber 30. The area of ​​the third air inlet 71, the volume of the first smoke-collecting chamber 20, and the volume of the second smoke-collecting chamber 30 work together synergistically to achieve a better absorption effect of the concealed range hood 1000 for larger amounts of smoke.

[0064] In an alternative embodiment, such as Figures 5-7 As shown, the smoke collection mechanism 100 also includes a smoke collection hood body and a baffle 14. The smoke collection hood body includes a front end plate 11 and a back end plate 12 arranged at intervals along the front and rear. The baffle 14 and the smoke collection hood body together form an auxiliary hood. The auxiliary hood is connected to the main unit 200. The second smoke collection chamber 30 can extend or retract into the auxiliary hood, thereby realizing the switching of the second smoke collection chamber 30 between the third position and the fourth position. The structure is simple and facilitates the rapid switching of the state of the second smoke collection chamber 30.

[0065] Specifically, such as Figure 6 As shown, when both the first smoke collection chamber 20 and the second smoke collection chamber 30 are extended out of the smoke collection hood 10, the first smoke collection chamber 20, the baffle 14 and the second smoke collection chamber 30 together form the third smoke collection chamber 70 which only has the third air inlet 71.

[0066] In an alternative embodiment, such as Figures 5-6As shown, the smoke collection mechanism 100 also includes an oil cup 300, which is located at the lower end of the second smoke collection chamber 30 and communicates with the interior of the second smoke collection chamber 30. The baffle 14 includes a guide section 141 and a limiting section 142 connected to each other. The guide section 141 is located in front of and above the limiting section 142. The guide section 141 is inclined downward from front to back. By setting the guide section 141 and the limiting section 142, the oil inside the baffle 14 can be better guided to the oil cup 300.

[0067] Specifically, such as Figures 5-6 As shown, the oil cup 300 has a second opening 3101 (as shown in the image). Figure 10 As shown), the second smoke collection chamber 30 includes a smoke collection chamber body 32, and a second oil drain 321 is provided on the smoke collection chamber body 32. The second oil drain 321 is connected to the second opening 3101. The oil accumulated inside the second smoke collection chamber 30 can enter the oil cup 300 for collection after passing through the second oil drain 321 and the second opening 3101.

[0068] In an alternative embodiment, such as Figures 5-6 As shown, the first filter mechanism 13 is located on the front and top of the guide section 141. The first filter mechanism 13 is inclined downward from front to back. The oil residue on the first filter mechanism 13 can be smoothly guided to the oil cup 300 along the first filter mechanism 13, the guide section 141 and the limiting section 142, so as to achieve a better oil recovery effect of the oil cup 300 for oil in different positions and prevent oil from dripping from the hidden range hood 1000 onto the outside of the hidden range hood 1000 or the stove.

[0069] In an alternative embodiment, such as Figures 5-7 As shown, the second air inlet 31 moves from top to bottom. By adjusting the state of the second smoke collection chamber 30, the height of the second air inlet 31 can be adjusted, thereby matching different heights of the second air inlet 31 with different oil fume concentrations. The lower the position of the second air inlet 31, the better the oil fume absorption effect of the second smoke collection chamber 30.

[0070] In an alternative embodiment, such as Figure 12 As shown, the smoke collection mechanism 100 also includes a guide mechanism 600, which is disposed between the auxiliary cover and the second smoke collection chamber 30. The guide mechanism 600 is used to make the second smoke collection chamber 30 move better in the vertical direction, so as to avoid the second smoke collection chamber 30 from deflecting or getting stuck during the movement.

[0071] For example, such as Figure 12 As shown, the guide mechanism 600 can be a linear guide rail, etc. All structures that can enable the second smoke collection chamber 30 to move relative to the auxiliary cover in the vertical direction are within the protection scope of this optional embodiment, and will not be listed one by one in this application.

[0072] In an alternative embodiment, such as Figures 5-6 As shown, the first filter mechanism 13 is provided with a first filter hole 1311. The tail end 1311a of the first filter hole 1311 is located in front of and above the connection position between the first filter mechanism 13 and the second connecting mechanism 23. This ensures that the oil on the tail end 1311a of the first filter hole 1311 can drip smoothly into the first smoke collection chamber 20, and prevents the oil on the first filter hole 1311 from dripping onto the outside of the hidden range hood 1000 or the stove.

[0073] In an alternative embodiment, such as Figures 9-11 As shown, the second connecting mechanism 23 is provided with a guide groove 232 having an upper opening 2321 and a lower opening 2322. An avoidance port 241 is provided at the connection position between the second connecting mechanism 23 and the movable cavity body 21. The guide groove 232 is located in front of the avoidance port 241 or is connected to the avoidance port 241. Through the setting of the guide groove 232, the oil can quickly gather into the lower opening 2322 and flow into the movable cavity body 21, effectively improving the oil collection efficiency.

[0074] In an alternative embodiment, such as Figures 9-11 As shown, the width of the guide channel 232 gradually decreases from top to bottom in the left-right direction. With the setting of this guide channel 232, the oil can be collected more quickly into the lower opening 2322 and flow into the active cavity body 21, further improving the oil collection efficiency.

[0075] In an alternative embodiment, such as Figures 9-11 As shown, the guide channel 232 is located on the front side of the rear side of the active cavity body 21, which can ensure that the oil on the second connecting mechanism 23 completely enters the active cavity body 21, prevent the oil on the second connecting mechanism 23 from flowing to the outside of the active cavity body 21, prevent the oil from falling onto the stove, and ensure the cleanliness of the kitchen environment.

[0076] In an alternative embodiment, such as Figures 9-11 As shown, the guide groove 232 located on the front side of the second connecting mechanism 23 can effectively guide the oil in the first smoke collection chamber 20 into the active chamber body 21.

[0077] In an alternative embodiment, such as Figures 9-11 As shown, the lower end of the second connecting mechanism 23 is pivotally connected to the smoke hood 10 via a long pivot shaft 24. The pivot shaft 24 has a clearance opening 241. The oil on the second connecting mechanism 23 can pass through the lower opening 2322 and the clearance opening 241 in sequence before entering the movable cavity body 21. The clearance opening 241 can avoid the pivot shaft 24 from interfering with the oil, ensuring that the oil flowing out from the lower opening 2322 smoothly enters the movable cavity body 21.

[0078] In summary, through the aforementioned structural design, the various structures work together to achieve a better effect of guiding the oil in the first smoke-collecting chamber 20 into the interior of the movable chamber body 21.

[0079] In an alternative embodiment, such as Figures 9-11 As shown, the guide channel 232 located on the front side is located on the rear side of the second connecting mechanism 23. The guide channel 232 can better guide the oil in the third smoke collection chamber 70 into the interior of the active chamber body 21.

[0080] In an alternative embodiment, such as Figure 6 As shown, the position where the upper end of the first connecting mechanism 22 is rotatably connected to the smoke hood 10 is the first connecting position P; the position where the lower end of the first connecting mechanism 22 is rotatably connected to the movable cavity body 21 is the second connecting position Q; the position where the upper end of the second connecting mechanism 23 is rotatably connected to the smoke hood 10 is the third connecting position M; and the position where the lower end of the second connecting mechanism 23 is rotatably connected to the movable cavity body 21 is the fourth connecting position N. Here, PQNM form a parallelogram structure. Through this structural design, the first air inlet 211 can be kept in a horizontal position during the forward and downward movement process, and the first air inlet 211 on the movable cavity body 21 can always have a good air intake effect.

[0081] In an alternative embodiment, such as Figures 5-6 As shown, when the first smoke collection chamber 20 is in the second position, the first connecting mechanism 22 protrudes to the rear, and a clearance space 227 is formed on the front side of the first connecting mechanism 22. When the first smoke collection chamber 20 switches from the first position to the second position, that is, when the first air inlet 211 moves downward and forward at the same time, the clearance space 227 can avoid interference between the first connecting mechanism 22 and the smoke hood 10, and can also avoid interference between the first connecting mechanism 22 and the cabinet 2000. Structurally, it can ensure that the first smoke collection chamber 20 of the hidden range hood 1000 moves forward and downward synchronously. The structure is simple and ingenious, and solves the technical problem that the first smoke collection chamber 20 of the hidden range hood 1000 can only move in the vertical direction, which has been difficult for people in the art to overcome.

[0082] Furthermore, through the structural arrangement of the first connecting mechanism 22, the first air inlet 211 can extend further forward from the fume hood 10, thereby achieving a better fume extraction effect for the first air inlet 211.

[0083] In an alternative embodiment, such as Figures 5-7As shown, the first connecting mechanism 22 is a connecting plate extending in the left-right direction, and the second connecting mechanism 23 is a connecting plate extending in the left-right direction. The smoke hood 10, the movable cavity body 21, the first connecting mechanism 22, and the second connecting mechanism 23 are assembled together to form the smoke collection space 50, which can achieve the formation of a larger volume smoke collection space 50 and further improve the smoke extraction effect of the hidden range hood 1000. In addition, due to the shape design of the connecting plates of the first connecting mechanism 22 and the second connecting mechanism 23, a better sealing effect can be achieved for the smoke collection space 50, and the smoke collection space 50 can achieve a better absorption effect for oil fumes. Furthermore, the smoke collection mechanism 100 with this shape involves fewer plate structures and has a simple structure.

[0084] In an alternative embodiment, such as Figures 5-6 , Figure 9 as well as Figure 10 As shown, the second connecting mechanism 23 is a connecting plate extending in the left-right direction. The lower end of the second connecting mechanism 23 is pivotally connected to the smoke hood 10 via a long pivot shaft 24, and the upper end of the second connecting mechanism 23 is pivotally connected to the smoke hood 10. When the first smoke collection chamber 20 is in the first position, the second position, or any intermediate position, the connection via the entire pivot shaft 24 improves the sealing effect between the lower end of the second connecting mechanism 23 and the smoke hood 10, and also improves the sealing effect between the upper end of the second connecting mechanism 23 and the smoke hood 10. This further improves the sealing effect of the smoke collection space 50, reduces airflow loss, and effectively improves the smoke extraction effect of the concealed range hood 1000. The concealed range hood 1000 has a good smoke extraction effect, preventing oil fumes or oil from overflowing from the smoke collection space 50, ensuring a clean kitchen environment, and improving the user experience.

[0085] In an alternative embodiment, such as Figure 8 As shown, the driving device 60 may also include a flip-plate driving mechanism 62, which can drive the flip-plate 40 to rotate relative to the movable cavity body 21. When the flip-plate 40 is in the open state, the flip-plate 40 can further improve the smoke collection effect of the hidden smoke machine 1000. All structures that can realize the flip-plate 40 to rotate are within the protection scope of this optional embodiment, and this optional embodiment will not be listed and described one by one.

[0086] Example 2 like Figure 13 and Figure 14 As shown, this embodiment of the disclosure provides a concealed range hood 1000, the structure of which is basically the same as that of the concealed range hood 1000 in Embodiment 1, the main difference being: Figure 13 and Figure 14As shown, the flap 40 is connected to the first smoke collection chamber 20 in a transmission manner. When the first smoke collection chamber 20 extends out of the smoke collection hood 10, it simultaneously drives the flap 40 to open the first air inlet 211. In other words, the synchronous coordinated action of the first smoke collection chamber 20, the second smoke collection chamber 30 and the flap 40 can be achieved by setting only one set of drive device 60. Based on the first embodiment, the hidden smoke hood 1000 of this embodiment further eliminates the flap drive mechanism 62, which can further reduce the internal installation space of the drive device 60, making the internal layout of the hidden smoke hood 1000 more compact, and further realizing the overall miniaturization design of the hidden smoke hood 1000.

[0087] In an alternative embodiment, such as Figure 13 and Figure 14 As shown, the smoke collection mechanism 100 also includes a connecting rod 700. The flap 40 is rotatably connected to the movable cavity body 21. One end of the connecting rod 700 is rotatably connected to the flap 40, and the other end of the connecting rod 700 is rotatably connected to the first connecting mechanism 22 or the second connecting mechanism 23. With the simple setting of the connecting rod 700, the movement of the first connecting mechanism 22 can drive the flap 40, thereby realizing the synchronous drive of the flap 40 and the first smoke collection cavity 20 by a single driving device 60.

[0088] In an alternative embodiment, such as Figure 13 and Figure 14 As shown, the first connecting mechanism 22 includes a first hinge point 224, a second hinge point 225, and a third hinge point 226. The first hinge point 224 is rotatably connected to the smoke hood 10, the second hinge point 225 is rotatably connected to the movable cavity body 21, and the third hinge point 226 is rotatably connected to the connecting rod 700. The connecting rod 700 is rotatably connected to the flap 40 via a fourth hinge point 710, and the flap 40 is rotatably connected to the smoke hood 10 via a fifth hinge point 41. When the first smoke hood 20 is in the position extending out of the smoke hood 10, the first hinge point 224, the second hinge point 225, the fifth hinge point 41, the third hinge point 226, and the fourth hinge point 710 are arranged from top to bottom, and the fourth hinge point 710, the fifth hinge point 41, and the third hinge point 226 are arranged from front to back.

[0089] With the arrangement of the various hinge points described above, when the first connecting mechanism 22 and the second connecting mechanism 23 flip forward and downward, the first connecting mechanism 22 can drive the flap 40 to flip forward, thereby enabling the flap 40 to open the first air inlet 211.

[0090] Example 3 like Figure 15 and Figure 16As shown, this embodiment of the disclosure provides a concealed range hood 1000, the structure of which is basically the same as that of the concealed range hood 1000 in Embodiment 1, the main difference being: Figure 15 and Figure 16 As shown, the first connecting mechanism 22 is a linkage structure. This first connecting mechanism 22 has a simple structure, small size and light weight. The driving device 60 only needs to apply a small driving force to achieve effective driving of the first smoke collection chamber 20.

[0091] In an alternative embodiment, such as Figure 15 and Figure 16 As shown, the first connecting mechanism 22 can be set to at least two, and the at least two first connecting mechanisms 22 are arranged at intervals in the left and right directions to enhance the connection effect between the first smoke collection chamber 20 and the smoke collection hood 10.

[0092] In an optional embodiment, the second connecting mechanism 23 can also be configured as a connecting rod, which can further reduce the volume and weight of the first smoke collection chamber 20. The driving device 60 can effectively drive the first smoke collection chamber 20 by applying only a small driving force.

[0093] In an optional embodiment, the second connecting mechanism 23 may be configured as at least two, with the at least two second connecting mechanisms 23 arranged at intervals in the left-right direction, thereby further enhancing the connection strength between the first smoke-collecting chamber 20 and the smoke-collecting hood 10.

[0094] Example 4 like Figure 17 and Figure 18 As shown, this embodiment of the disclosure provides a concealed range hood 1000, the structure of which is basically the same as that of the concealed range hood 1000 in Embodiment 1, the main difference being: Figure 17 and Figure 18 As shown, the first connecting mechanism 22 includes a first hinge point 224 and a second hinge point 225. The first hinge point 224 is rotatably connected to the smoke hood 10, and the second hinge point 225 is rotatably connected to the movable cavity body 21. The connecting rod 700 includes a sixth hinge point 720 and a seventh hinge point 730. The sixth hinge point 720 is rotatably connected to the second connecting mechanism 23, and the seventh hinge point 730 is rotatably connected to the flap 40. The flap 40 is rotatably connected to the smoke hood 10 through an eighth hinge point 42. When the first smoke hood 20 is in the position of being stored in the smoke hood 10, the seventh hinge point 730, the eighth hinge point 42, and the sixth hinge point 720 are arranged from front to back. When the first smoke hood 20 is in the position of being extended out of the smoke hood 10, the eighth hinge point 42, the seventh hinge point 730, and the sixth hinge point 720 are arranged from front to back.

[0095] With the arrangement of the various hinge points described above, when the first connecting mechanism 22 and the second connecting mechanism 23 flip forward and downward, the connecting rod 700 rotates clockwise, and the connecting rod 700 drives the flap 40 to rotate clockwise. The first connecting mechanism 22 can drive the flap 40 to flip forward, thereby enabling the flap 40 to open the first air inlet 211.

[0096] Example 5 like Figure 19 As shown, the structure of this embodiment is basically the same as that of Embodiment 1, with the main difference being: Figure 19 As shown, the first filtration mechanism 13 includes a first filter screen 131 and a second filter screen 132. When the first smoke collection chamber 20 is in the second position and the second smoke collection chamber 30 is in the fourth position, in addition to the first path of oil smoke Y1 and the third path of oil smoke Y3, the oil smoke also includes a second path of oil smoke Y2. The second path of oil smoke Y2 flows sequentially through the third air inlet 71 of the third smoke collection chamber 70 and the second filter screen 132 before entering the main unit box 200 of the concealed range hood 1000, which increases the flow of oil smoke and can further improve the oil smoke absorption effect of the concealed range hood 1000.

[0097] In addition, the third smoke collection chamber 70 also serves to gather the oil fumes in front of the second air inlet 31. In other words, the third smoke collection chamber 70 can not only effectively gather the third oil fumes Y3, but also add a new oil fume passage, thus improving the overall oil fume extraction effect of the concealed range hood 1000.

[0098] In addition, the second filter 132 can achieve a better filtration effect for the second oil fume Y2, which can effectively improve the filtration effect of the concealed range hood 1000.

[0099] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. An oil fume treatment device, characterized in that, Includes a smoke collection mechanism (100), said smoke collection mechanism (100) comprising: Smoke hood (10); The first smoke collection chamber (20) has a first air inlet (211); The second smoke collection chamber (30) has a second air inlet (31) and is located behind the first smoke collection chamber (20); and The driving device (60) can drive the first smoke collection chamber (20) and the second smoke collection chamber (30) to extend or retract synchronously into the smoke collection hood (10).

2. The fume treatment device according to claim 1, characterized in that, The smoke collection mechanism (100) also includes: The linkage assembly (800) is movably connected to the second smoke collection chamber (30), the first smoke collection chamber (20), and the main unit box (200) of the fume treatment device. One end of the driving device (60) is movably connected to the smoke collection hood (10) or the main unit box (200), and the other end of the driving device (60) is movably connected to the second smoke collection chamber (30). The linkage assembly (800) can convert the downward movement of the second smoke collection chamber (30) into the forward and downward movement of the first smoke collection chamber (20).

3. The oil fume treatment device according to claim 2, characterized in that, The linkage assembly (800) includes a first linkage (810), a second linkage (820), and a third linkage (830). The main unit (200), the first linkage (810), the second linkage (820), and the second smoke collection chamber (30) are rotatably connected in sequence. One end of the third linkage (830) is rotatably connected to the rod portion of the second linkage (820), and the other end of the third linkage (830) is rotatably connected to the first smoke collection chamber (20).

4. The oil fume treatment device according to claim 3, characterized in that, The first connecting rod (810) is located above the second connecting rod (820), and the first connecting rod (810), the second connecting rod (820), and the third connecting rod (830) are all located on the front side of the second smoke collection chamber (30); and / or The first smoke collection chamber (20) includes a second connecting mechanism (23), which includes a power plate (231) and a fourth connecting rod (233) disposed thereon. The fourth connecting rod (233) is arranged at an angle to the power plate (231), and the other end of the third connecting rod (830) is rotatably connected to the fourth connecting rod (233); and / or The second smoke collection chamber (30) includes a smoke collection chamber body (32) and an extension rod (33). The extension rod (33) is formed by extending upward from the upper end of the smoke collection chamber body (32). The second connecting rod (820) is rotatably connected to the upper end of the extension rod (33); and / or The connection point between the first link (810) and the second link (820) is the first connection point U, the connection point between the second link (820) and the third link (830) is the second connection point V, and the connection point between the second link (820) and the second smoke collection chamber (30) is the third connection point W. The length of UV is the first length L1, the length of VW is the second length L2, and L1 / L2 is 1 / 6 to 1 / 2.

5. The oil fume treatment device according to any one of claims 1 to 4, characterized in that, When both the first smoke-collecting chamber (20) and the second smoke-collecting chamber (30) are housed within the smoke-collecting hood (10), the first lowest position of the first smoke-collecting chamber (20) is approximately level with the second lowest position of the second smoke-collecting chamber (30); and / or When both the first smoke-collecting chamber (20) and the second smoke-collecting chamber (30) are in the extended state of the smoke-collecting hood (10), the first lowest position of the first smoke-collecting chamber (20) is higher than the second lowest position of the second smoke-collecting chamber (30); and / or When both the first smoke collection chamber (20) and the second smoke collection chamber (30) are in the state of extending from the smoke collection hood (10), the first maximum distance of the first smoke collection chamber (20) in the front-back direction is greater than the second maximum distance of the second smoke collection chamber (30) in the front-back direction.

6. The oil fume treatment device according to any one of claims 1 to 4, characterized in that, During the process of the first smoke collection chamber (20) changing from being housed in the smoke collection hood (10) to being extended out of the smoke collection hood (10), the space inside the first smoke collection chamber (20) gradually increases.

7. The oil fume treatment device according to any one of claims 1 to 4, characterized in that, The smoke collection mechanism (1000) also includes: The flap (40) is connected to the first smoke collection chamber (20) in a transmission manner. When the first smoke collection chamber (20) extends out of the smoke collection hood (10), it simultaneously drives the flap (40) to open the first air inlet (211).

8. The fume treatment device according to claim 7, characterized in that, The first smoke collection chamber (20) includes a movable chamber body (21), a first connecting mechanism (22) and a second connecting mechanism (23). The second connecting mechanism (23) is located behind the first connecting mechanism (22). The upper ends of the first connecting mechanism (22) and the upper ends of the second connecting mechanism (23) are movably connected to the smoke collection hood (10). The lower ends of the first connecting mechanism (22) and the lower ends of the second connecting mechanism (23) are movably connected to the movable chamber body (21).

9. The fume treatment device according to any one of claims 1 to 4, characterized in that, When both the first smoke collection chamber (20) and the second smoke collection chamber (30) are extended out of the smoke collection hood (10), a third smoke collection chamber (70) is formed between the first smoke collection chamber (20) and the second smoke collection chamber (30). The third smoke collection chamber (70) is located upstream of the second air inlet (31) and is connected to the second air inlet (31).

10. The fume treatment device according to claim 9, characterized in that, During the process of the first smoke-collecting chamber (20) switching from a position housed within the smoke-collecting hood (10) to a position extending beyond the smoke-collecting hood (10), the volume of the third smoke-collecting chamber (70) increases; and / or When the first smoke-collecting chamber (20) is in a position extending beyond the smoke-collecting hood (10), the cross-sectional area of ​​the third smoke-collecting chamber (70) gradually increases; and / or The third smoke collection chamber (70) has a third air inlet (71). During the process of the first smoke collection chamber (20) switching from a position housed within the smoke collection hood (10) to a position extending beyond the smoke collection hood (10), the area of ​​the third air inlet (71) increases and flips forward and downward; and / or The smoke hood (10) includes a smoke hood body and a baffle (14). The baffle (14) is disposed in the smoke hood body. When the first smoke chamber (20) and the second smoke chamber (30) are both extended out of the smoke hood (10), the first smoke chamber (20), the baffle (14), and the second smoke chamber (30) together form the third smoke chamber (70) which only has a third air inlet (71); or The smoke collection hood (10) includes a smoke collection hood body and a first filter mechanism (13). The first filter mechanism (13) is disposed on the smoke collection hood body and has a first filter screen (131) and a second filter screen (132). The oil fumes are divided into a first oil fume Y1, a second oil fume Y2 and a third oil fume Y3. When both the first smoke collection chamber (20) and the second smoke collection chamber (30) are in a state of extending out of the smoke collection hood (10), wherein: The first path of oil fume Y1 flows sequentially through the first air inlet (211) and the first filter screen (131) into the main unit (200) of the oil fume treatment device; and / or The second path of oil fume Y2 flows sequentially through the third air inlet (71) of the third smoke collection chamber (70) and the second filter screen (132) before entering the main unit box (200) of the oil fume treatment device; and / or The third path of oil fume Y3 enters the main unit box (200) of the oil fume treatment device after passing through the second air inlet (31).

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