Smoke gathering mechanism and range hood

Abstract

The present application belongs to the technical field of electrical appliances, and discloses a smoke gathering mechanism and a range hood. The smoke gathering mechanism comprises a turnover cavity assembly, a turnover plate assembly and a driving motor. The turnover cavity assembly has a front-to-back through smoke inlet and a lower end for connecting with a smoke collecting hood. The turnover plate assembly is arranged on the front side of the turnover cavity assembly and can turn over to open or close the smoke inlet. The output shaft of the driving motor is in transmission connection with one of the turnover plate assembly and the turnover cavity assembly, and the motor shell of the driving motor is in transmission connection with the other one of the turnover plate assembly and the turnover cavity assembly. The driving motor drives the turnover plate assembly and the turnover cavity assembly to move together while moving with the turnover plate assembly. The range hood comprises the above smoke gathering mechanism. The smoke gathering mechanism and the range hood provided by the present application can improve the smoke gathering effect of the smoke gathering mechanism while reducing the floor space occupied by the smoke gathering mechanism, thereby facilitating the thin and light design of the range hood.

Description

Technical Field

[0001] This invention relates to the field of electrical technology, and in particular to a smoke collection mechanism and a range hood. Background Technology

[0002] As people's living standards improve, range hoods, which can extract cooking fumes, have become an indispensable kitchen appliance in people's daily lives. In order to reduce the space occupied by range hoods in the kitchen, there is a demand for the slim and lightweight design of range hoods.

[0003] The prior art provides a range hood, which includes a smoke collection hood and a fan box set on the top of the smoke collection hood. A fan is installed inside the fan box. The smoke collection hood is arranged in a "7" shape, and the front side of the main body is nearly vertical. A smoke collection port is opened on the front side of the smoke collection hood, and a smoke gathering plate is rotatably installed on the front side of the smoke collection hood. A push rod motor is installed inside the push rod motor. The fixed part of the push rod motor is installed on the smoke collection hood, and the push rod is connected to the smoke gathering plate. The extension and retraction of the push rod relative to the fixed part drives the smoke gathering plate to flip open or close the smoke collection port.

[0004] Existing technology provides range hoods that reduce the thickness of the main body of the smoke collection hood by using a "7"-shaped design, and the smoke collection plate helps to ensure the smoke collection effect during operation. However, since the smoke collection plate is driven to open or close by a push rod motor, and the size of the smoke collection hood in the front-to-back direction is limited, the size of the push rod motor is greatly restricted. This greatly limits the extension stroke of the push rod motor, resulting in a smaller opening angle for the smoke collection plate. This affects the user experience of the range hood and is also not conducive to further slimming down the range hood. Summary of the Invention

[0005] The first objective of this invention is to provide a smoke collection mechanism that improves the smoke collection effect while reducing the footprint of the smoke collection mechanism.

[0006] The second objective of this invention is to provide a range hood that improves the smoke extraction performance of the range hood while facilitating a slim and lightweight design.

[0007] To achieve this objective, the present invention adopts the following technical solution:

[0008] A smoke collection mechanism, comprising:

[0009] The flip-up cavity assembly has a through-hole smoke inlet at the front and back and its lower end is used to connect to the smoke collection hood;

[0010] A flap assembly is disposed on the front side of the flip-cavity assembly and can be flipped to open or close the smoke inlet;

[0011] A drive motor is provided, the output shaft of which is connected to one of the flap assembly and the flipping cavity assembly, and the motor housing of the drive motor is connected to the other of the flap assembly and the flipping cavity assembly. The drive motor drives the flap assembly and the flipping cavity assembly in linkage and moves with the flap assembly.

[0012] As an optional technical solution for the smoke collection mechanism, the smoke collection mechanism includes a mounting rod, the first end of which is connected to the upper end of the flap assembly and the second end is used to be hinged to the smoke collection hood, and the corresponding output shaft or the motor housing is connected to the mounting rod.

[0013] And / or, the smoke collection mechanism includes a transmission rod assembly, which is connected between the flipping cavity assembly and the corresponding output shaft or the motor housing;

[0014] And / or, the motor housing is driven to the flipping cavity assembly, the output shaft is driven to the flipping assembly to drive the flipping assembly to rotate, and the axis of the output shaft is parallel to and spaced apart from the rotation axis of the flipping assembly.

[0015] As an optional technical solution for the smoke collection mechanism, the mounting rod includes a connected main rod and a mounting plate. The main rod is at least partially bent backward and its lower end is connected to the flap assembly. The drive motor is connected to the mounting plate.

[0016] The mounting plate is connected to the rear bend of the main member; and / or, the front end of the mounting plate is connected to the main member and the rear end is connected to the drive motor; and / or, the mounting plate is detachably connected to the main member.

[0017] As an optional technical solution for a smoke collection mechanism, the main rod is provided with a plurality of first mounting holes spaced apart along its extension direction, and the mounting plate is provided with a second mounting hole, the second mounting hole being able to align with any of the first mounting holes, and the main rod and the mounting plate being connected by fasteners passing through the first mounting holes and the second mounting holes.

[0018] As an optional technical solution for the smoke collection mechanism, the transmission rod assembly includes a connecting shaft and a first connecting rod. The connecting shaft is parallel to and spaced apart from the output shaft and connected to the upper end of the flipping cavity assembly. The first end of the first connecting rod is hinged to the motor housing and the second end is connected to the connecting shaft.

[0019] As an optional technical solution for the smoke collection mechanism, the smoke collection mechanism further includes a second connecting rod, the lower end of which is connected to the connecting shaft, and the upper end of which is used to connect to the smoke collection hood;

[0020] And / or, the first link extends forward at an angle from top to bottom, and the lower end of the first link is connected to the connecting shaft;

[0021] And / or, the smoke collection mechanism further includes a limiting rod, the first end of which is connected to the connecting shaft, the second end of which is hinged to the mounting rod, the limiting rod limiting the maximum flipping angle of the flipping cavity assembly, and the hinge axis of the second end of the limiting rod being parallel to and spaced apart from the hinge axis of the first end of the first connecting rod.

[0022] As an optional technical solution for the smoke collection mechanism, in the front-to-back direction, the first end of the limiting rod, the first end of the first connecting rod, and the output shaft are arranged sequentially at intervals from front to back;

[0023] And / or, in the front-to-back direction, the rotation axis of the flap assembly, the hinge axis of the limiting rod and the mounting rod, and the axis of the output shaft are arranged in parallel intervals from front to back;

[0024] And / or, in the vertical direction, the axis of the output shaft is located between the two ends of the limiting rod.

[0025] As an optional technical solution for the smoke collection mechanism, one limiting rod is provided on each of the left and right sides of the mounting rod;

[0026] And / or, the limiting rod is an arc-shaped curved rod with its opening facing forward and upward.

[0027] As an optional technical solution for the smoke collection mechanism, the side of the flipping cavity assembly is provided with a mounting shaft hole, the mounting shaft hole extending at least partially along the height direction of the flipping cavity assembly, and the connecting shaft slidingly passing through the mounting shaft hole.

[0028] As an optional technical solution for the smoke collection mechanism, the mounting shaft hole includes a first hole and a second hole that communicates with the front end of the first hole. When the flap assembly closes the smoke inlet, the connecting shaft is located at the rear end of the first hole.

[0029] The shape of the first hole is consistent with the running trajectory of the connecting shaft when the flap assembly flips from the closed state to the open preset angle, and the movement of the connecting shaft along the second hole drives the flipping cavity assembly to flip.

[0030] As an optional technical solution for the smoke collection mechanism, the motor housing has a convex shaft that is parallel to and spaced apart from the output shaft. One of the convex shaft and the output shaft is connected to the mounting rod, and the other is connected to the transmission rod assembly.

[0031] And / or, one mounting rod is provided on each of the left and right sides of the flip plate assembly, one transmission rod group is provided on each of the left and right sides of the flip cavity assembly, the drive motor is connected between one of the mounting rods and the corresponding transmission rod group, and the other mounting rod and the transmission rod group are linked together by a connecting structure.

[0032] As an optional technical solution for the smoke collection mechanism, the smoke collection mechanism further includes an auxiliary linkage component, which is connected between the upper ends of the flap assembly and the flipping cavity assembly. The auxiliary linkage component is configured to drive the upper end of the flipping cavity assembly to approach the flap assembly when the flap assembly is flipped open.

[0033] And / or, the flap assembly includes a smoke-gathering plate and a smoke-guiding protrusion protruding from the back side of the smoke-gathering plate. The smoke-gathering plate can open or close the smoke inlet, and when the smoke-gathering plate closes the smoke inlet, the smoke-guiding protrusion is located inside the smoke inlet.

[0034] As an optional technical solution for a smoke-gathering mechanism, the smoke-gathering mechanism includes a flipping linkage component, which is connected to the flap assembly and the flipping cavity assembly. The drive motor is mounted on the flipping linkage component, and the drive motor drives the flap assembly and the flipping cavity assembly to move in linkage through the flipping linkage component.

[0035] The back side of the flap assembly is connected to an oil baffle, the oil baffle extends freely rearward and has an oil baffle cavity with an upward opening, the flip linkage assembly is at least partially housed in the oil baffle cavity, and the oil baffle covers the flip linkage assembly upward.

[0036] A range hood includes a smoke collection hood with a smoke collection chamber and a front opening, and also includes a smoke gathering mechanism as described above. The upper end of the flap assembly is rotatably mounted on the smoke collection hood, and the lower end of the flip chamber assembly is movably mounted inside the smoke collection hood and is positioned directly opposite the front opening. The drive motor can drive the flap assembly to flip outward while simultaneously causing the upper end of the flip chamber assembly to extend forward out of the front opening. The drive motor can also drive the flap assembly to close relative to the smoke collection hood, thereby closing the front opening.

[0037] As an optional technical solution for range hoods, the side of the smoke collection hood is provided with an inspection port, and an inspection plate is detachably installed at the inspection port, which is positioned directly opposite the drive motor.

[0038] The beneficial effects of this invention are:

[0039] The smoke-gathering mechanism provided by this invention, by setting up a flip-up cavity assembly and a flap assembly, allows the flip-up cavity assembly and the flap assembly to cooperate in forming a smoke-gathering cavity when the flap assembly opens the smoke inlet, thereby increasing the smoke-gathering area and improving the smoke-gathering effect. At the same time, since the flap assembly and the flip-up cavity assembly are driven by a drive motor and are linked together, the flap assembly and the flip-up cavity assembly share a drive structure, simplifying the cost of the smoke-gathering mechanism and reducing the space occupied by the drive structure. Furthermore, since the drive motor moves with the flap assembly, it can increase the opening stroke of the flap assembly while reducing the space required for the drive motor to move, thereby reducing the overall space occupied by the smoke-gathering mechanism.

[0040] The present invention provides a range hood that, by adopting the above-mentioned smoke collection mechanism, improves the smoke extraction effect of the range hood while facilitating the slim design of the range hood. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the range hood provided in Embodiment 1 of the present invention when the flap assembly is in the closed state;

[0042] Figure 2 This is a schematic diagram of the range hood provided in Embodiment 1 of the present invention when the flap assembly is in the open state;

[0043] Figure 3 This is a cross-sectional view of the range hood provided in Embodiment 1 of the present invention when the flap assembly is in the closed state;

[0044] Figure 4 This is a cross-sectional view of the range hood provided in Embodiment 1 of the present invention when the flap assembly is in the open state;

[0045] Figure 5 This is a schematic diagram of the smoke collection mechanism provided in Embodiment 1 of the present invention when it is in the closed state;

[0046] Figure 6 This is a schematic diagram of the smoke-collecting mechanism provided in Embodiment 1 of the present invention when it is in the open state;

[0047] Figure 7 yes Figure 6 A magnified view of a section at point I;

[0048] Figure 8 This is a partial structural schematic diagram of the smoke-collecting mechanism provided in Embodiment 1 of the present invention;

[0049] Figure 9 This is a side view of the smoke-collecting mechanism provided in Embodiment 1 of the present invention in different states;

[0050] Figure 10 This is a schematic diagram of another part of the smoke-collecting mechanism provided in Embodiment 1 of the present invention;

[0051] Figure 11 This is a partial structural schematic diagram of the smoke collection device provided in Embodiment 1 of the present invention;

[0052] Figure 12 This is a side view of the smoke collection device provided in Embodiment 1 of the present invention;

[0053] Figure 13 This is a cross-sectional view of the smoke collection mechanism provided in Embodiment 2 of the present invention in the closed state;

[0054] Figure 14 This is a cross-sectional view of the smoke collection mechanism provided in Embodiment 2 of the present invention in the open state;

[0055] Figure 15 This is a side view of the smoke collection mechanism provided in Embodiment 2 of the present invention in the open state;

[0056] Figure 16 This is a side view of the smoke-collecting mechanism provided in Embodiment 3 of the present invention in the closed state;

[0057] Figure 17 This is a side view of the smoke collection mechanism provided in Embodiment 3 of the present invention in the open state.

[0058] In the picture:

[0059] 100. Smoke collection device; 200. Bellows assembly; 300. Oil cup;

[0060] 1. Flip-up assembly; 11. Smoke collection plate; 12. Smoke guide protrusion; 13. Mounting support;

[0061] 2. Tilting cavity assembly; 21. Smoke collection cavity; 211. Smoke inlet; 212. Clearance shaft hole; 22. Side slide rail; 23. Mounting shaft hole; 231. First hole; 232. Second hole; 24. Side baffle;

[0062] 3. Tilting linkage assembly; 31. Mounting rod; 311. Main rod; 3111. Bending rod section; 3112. Fixing rod section; 3113. First mounting hole; 312. Mounting plate; 3121. Second mounting hole; 32. Transmission rod assembly; 321. Connecting shaft; 322. First connecting rod; 323. Second connecting rod; 33. Limiting rod; 34. Connection structure; 341. Connecting plate; 342. First shaft; 343. Second shaft;

[0063] 4. Drive motor; 41. Output shaft; 42. Cam shaft; 43. Motor housing;

[0064] 5. Auxiliary linkage assembly; 51. Sliding component; 52. Connecting rod; 53. First hinge shaft; 54. Second hinge shaft; 55. Guide rail;

[0065] 6. Smoke hood; 61. Vertical smoke collection section; 611. Back plate; 62. Horizontal smoke collection section; 63. Smoke collection chamber; 64. Inspection port;

[0066] 7. Side smoke baffle; 8. Oil baffle cover; 81. Clearance elongated hole; 82. Oil baffle cavity; 9. Front panel; 10. Panel mounting base; 101. Base body; 102. Shaft body; 20. Bottom mounting base; 30. Fixing base; 40. Reset component. Detailed Implementation

[0067] The present invention will now be described in further detail 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, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0068] 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.

[0069] 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.

[0070] In the description of this embodiment, the terms "upper," "lower," "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. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0071] Example 1

[0072] This embodiment provides a range hood that can improve the smoke extraction effect and enhance the user experience while achieving a slimmer and lighter design.

[0073] like Figures 1 to 5 As shown, the range hood includes a smoke collection device 100 and a fan assembly 200. The smoke collection device 100 has a smoke collection chamber 63 and a smoke inlet 211 communicating with the smoke collection chamber 63. The top of the smoke collection device 100 has a smoke outlet communicating with the smoke collection chamber 63. The fan assembly 200 is installed on the top of the smoke collection device 100 and includes a fan and a fan installed inside the fan. The fan's air inlet communicates with the smoke outlet, and a check valve is installed at the fan's air outlet. The outlet end of the check valve is connected to an exhaust pipe, which extends outside the fan to discharge the fumes into the external environment.

[0074] The smoke collection device 100 includes a housing assembly and a smoke gathering mechanism. The housing assembly has a smoke collection chamber 63, and a front opening communicating with the smoke collection chamber 63 is provided on the front side of the housing assembly. The smoke gathering mechanism is rotatably mounted on the front side of the housing assembly and has a smoke inlet 211 communicating with the front opening. The smoke gathering mechanism can open or close the front opening. When the front opening is open and the fan is running, a negative pressure is generated at the smoke inlet 211. Oil fumes from the external environment enter the smoke collection chamber 63 through the smoke inlet 211 due to the negative pressure, and are then discharged through the exhaust pipe after entering the fan's interior under the fan's suction action. When the smoke gathering mechanism closes the front opening, the smoke inlet 211 is also closed. The front side of the smoke collection device 100 is roughly flush with the front, making the overall shape of the smoke collection device 100 and the range hood simple and aesthetically pleasing. That is, the smoke gathering mechanism has a closed state with the front opening closed and an open state with the front opening open.

[0075] The housing assembly includes a smoke collection hood 6, which has a vertical smoke collection section 61 and a horizontal smoke collection section 62 connected to the top of the vertical smoke collection section 61. The horizontal smoke collection section 62 extends forward from the top of the vertical smoke collection section 61, making the smoke collection hood 6 have a "7"-shaped structure. This results in a smaller overall thickness of the housing assembly, while the top has sufficient width for installing the bellows. At the same time, the horizontal smoke collection section 62 can prevent oil fumes from escaping upwards, improving the smoke collection effect. A front opening is located on the front side of the vertical smoke collection section 61.

[0076] The housing assembly also includes a front panel 9 located on the front side of the smoke collection hood 6. The front panel 9 is located above the front opening, and when the smoke collection mechanism is in the closed state, the front side of the smoke collection mechanism is located below the front panel 9. The front side of the smoke collection mechanism and the front side of the front panel 9 are arranged side by side vertically and are roughly flush.

[0077] To collect oil in the smoke collection chamber 63, the range hood also includes an oil cup 300. The oil cup 300 is installed at the bottom of the smoke collection hood 6. An oil drain port is provided at the bottom of the smoke collection chamber 63, and the oil drain port is set directly opposite the upper opening of the oil cup 300.

[0078] It is worth noting that the structure of the oil cup 300 and the bellows assembly 200 can be set with reference to the prior art, which is not the focus of this invention and will not be described in detail here.

[0079] To improve the smoke collection effect of the smoke collection mechanism, the smoke collection mechanism includes a flap assembly 1 and a tilting cavity assembly 2. The lower end of the tilting cavity assembly 2 is movably installed in the smoke collection cavity 63, and the upper part of the tilting cavity assembly 2 can tilt outwards from the front opening or tilt back into the smoke collection cavity 63. The tilting cavity assembly 2 has a smoke inlet 211 that runs through the front and back. The flap assembly 1 is located in front of the tilting cavity assembly 2, and the upper end of the flap assembly 1 is rotatably installed on the smoke collection hood 6, and can simultaneously open or close the front opening and the smoke inlet 211.

[0080] When the flap assembly 1 is closed relative to the smoke hood 6, the smoke gathering mechanism is in the closed state. At this time, the flipping cavity assembly 2 is located inside the smoke gathering cavity 63, and the flap assembly 1 simultaneously closes the smoke inlet 211 and the front opening. When the flap assembly 1 is open relative to the smoke hood 6, the smoke gathering mechanism is in the open state. The upper end of the flipping cavity assembly 2 extends out of the front opening, and the flipping cavity assembly 2 and the flap assembly 1 together form a smoke gathering cavity with a lower opening. The smoke gathering cavity is connected to the smoke gathering cavity 63 through the smoke inlet 211 to achieve the gathering of oil fumes and guide the oil fumes into the smoke gathering cavity 63 through the smoke inlet 211, thereby improving the smoke gathering effect.

[0081] In this embodiment, the smoke collection mechanism includes a drive motor 4. The output shaft 41 of the drive motor 4 is connected to one of the flap assembly 1 and the flipping cavity assembly 2, and the motor housing 43 of the drive motor 4 is connected to the other of the flap assembly 1 and the flipping cavity assembly 2. The drive motor 4 drives the flap assembly 1 and the flipping cavity assembly 2 in linkage and moves with the flap assembly 1.

[0082] The smoke-gathering mechanism and range hood provided in this embodiment, by setting up a flip-up cavity assembly 2 and a flap assembly 1, can form a smoke-gathering cavity when the flap assembly 1 opens the smoke inlet 211, thereby increasing the smoke-gathering area and improving the smoke-gathering effect. At the same time, since the flap assembly 1 and the flip-up cavity assembly 2 are driven by the drive motor 4 and are linked together, the flap assembly 1 and the flip-up cavity assembly 2 share the same drive structure, simplifying the cost of the smoke-gathering mechanism and reducing the space occupied by the drive structure. Furthermore, since the drive motor 4 moves with the flap assembly 1, it can increase the opening stroke of the flap assembly 1 while reducing the space required for the drive motor 4 to move, thereby reducing the overall space occupied by the smoke-gathering mechanism, which is conducive to achieving a slimmer and lighter design of the smoke collection device 100 and the range hood.

[0083] like Figure 3 and Figure 4 As shown, in order to improve the smoke collection and smoke guiding effect when the flap assembly 1 is opened, the flap assembly 1 includes a smoke collection plate 11 and a smoke guiding boss 12 protruding from the rear side of the smoke collection plate 11. The smoke guiding boss 12 extends in the left and right direction, and a smoke guiding surface is formed on the side of the smoke guiding boss 12 away from the smoke collection plate 11. When the flap assembly 1 is in the closed state, the smoke gathering plate 11 closes the smoke inlet 211, and the smoke guiding protrusion 12 is located in the smoke inlet 211 of the flipping cavity assembly 2 to avoid interference between the smoke guiding protrusion 12 and the flipping cavity assembly 2, and also to avoid the smoke guiding protrusion 12 occupying additional space in the smoke collection cavity 63. When the flap assembly 1 is in the open state, the upper end of the smoke guiding protrusion 12 is close to the upper side of the smoke inlet 211, and the smoke guiding surface of the smoke guiding protrusion 12 guides the oil fumes to flow towards the smoke inlet 211 to improve the smoke gathering and oil guiding effect. At the same time, the setting of the smoke guiding protrusion 12 can reduce the probability of oil fumes escaping upward through the gap between the upper end of the flipping cavity assembly 2 and the smoke gathering plate 11, further improving the smoke gathering effect.

[0084] In this embodiment, the smoke guiding surface is a plane to reduce processing difficulty. The distance between the smoke guiding surface and the back side of the smoke collecting plate 11 gradually increases from bottom to top. When the flap assembly 1 opens the smoke inlet 211, the smoke guiding surface is tilted backward from bottom to top to facilitate guiding the upward-flowing smoke into the smoke inlet 211. Furthermore, when the smoke collecting mechanism is in the fully open state, the angle between the smoke guiding surface and the horizontal plane is 30° to 60°. In other embodiments, the smoke guiding surface can be a forward-concave arc surface, or a smooth curved surface with a rearward convex lower end and a forward-concave upper end.

[0085] When the smoke collection mechanism is in the closed state, the upper end of the smoke guide protrusion 12 is spaced apart from the upper side of the smoke inlet 211 to avoid interference between the smoke guide protrusion 12 and the flip cavity assembly 2 caused by the outward flipping of the flap assembly 1 relative to the flip cavity assembly 2.

[0086] The flipping chamber assembly 2 includes at least two smoke-gathering sides arranged opposite each other in the left-right direction and a smoke-gathering top connected between the top ends of the two smoke-gathering sides. The smoke-gathering top and the two smoke-gathering sides together form a smoke inlet 211. The lower end of the smoke-gathering sides is located in the smoke collection chamber 63 and is movably connected to the smoke collection hood 6. Both the smoke-gathering sides and the smoke-gathering top extend a certain width in the front-back direction to guide the fumes from the smoke inlet 211 into the smoke collection chamber 63. That is, when the smoke-gathering mechanism is in the fully open state, the rear ends of both the smoke-gathering sides and the smoke-gathering top are located in the smoke collection chamber 63.

[0087] like Figures 5 to 10As shown, in this embodiment, the output shaft 41 of the drive motor 4 is connected to the flap assembly 1, and the motor housing 43 of the drive motor 4 is hinged to the flipping cavity assembly 2. This allows the driving force of the drive motor 4 to directly overcome the gravity of the flap assembly 1 and drive it to rotate, while the flipping cavity assembly 2 can flip under the assistance of gravity, saving the driving force of the drive motor 4 and facilitating the control of the driving stroke of the flap assembly 1. In other embodiments, the drive motor 4 may also have its motor housing 43 connected to the flap assembly 1, while its output shaft 41 is connected to the flipping cavity assembly 2.

[0088] To better achieve the linkage drive of the drive motor 4 to the flap assembly 1 and the flip cavity assembly 2, the smoke collection mechanism also includes a flip linkage component 3. The flip linkage component 3 is connected between the flap assembly 1 and the flip cavity assembly 2. The drive motor 4 is installed on the flip linkage component 3, and the drive motor 4 drives the flap assembly 1 and the flip cavity assembly 2 to move in linkage through the flip linkage component 3.

[0089] In this embodiment, the flipping linkage assembly 3 includes a mounting rod 31 and a transmission rod assembly 32. The first end of the mounting rod 31 is connected to the upper end of the flip plate assembly 1, and the second end is hinged to the smoke collection hood 6. The corresponding output shaft 41 or motor housing 43 is connected to the mounting rod 31. The transmission rod assembly 32 is connected between the flipping cavity assembly 2 and the corresponding output shaft 41 or motor housing 43. Specifically, the output shaft 41 is connected to the mounting rod 31, and the motor housing 43 is hinged to the transmission rod assembly 32.

[0090] That is, in this embodiment, when the output shaft 41 of the drive motor 4 rotates, it drives the mounting rod 31 to rotate, thereby driving the flip plate assembly 1 to rotate relative to the smoke hood 6. Since the output shaft 41 is connected to the mounting rod 31, the movement of the mounting rod 31 drives the drive motor 4 to move as a whole, thereby causing the drive motor 4 to drive the transmission rod group 32 to move, and then drive the upper end of the flip cavity assembly 2 to flip forward relative to the smoke hood 6, so that the drive motor 4 moves with the flip plate assembly 1, and the flip cavity assembly 2 and the flip plate assembly 1 are linked.

[0091] In other embodiments, the output shaft 41 is connected to the transmission rod assembly 32, and the motor housing 43 is hinged to the mounting rod 31. That is, the rotation of the output shaft 41 drives the upper end of the flipping cavity assembly 2 to rotate, and at the same time drives the drive motor 4 to move as a whole. The movement of the drive motor 4 as a whole drives the flipping plate assembly 1 to flip through the mounting rod 31.

[0092] The driving force of the drive motor 4 to the flip-plate assembly 1 is transmitted by setting the mounting rod 31, and the transmission rod group 32 is used to achieve the transmission connection between the drive motor 4 and the flip-cavity assembly 2. This allows for setting the relative rotation axis of the drive motor 4 to the flip-plate assembly 1 and the relative position of the upper end of the flip-cavity assembly 2, enabling the drive motor 4 to achieve linkage drive of the flip-plate assembly 1 and the flip-cavity assembly 2 with a smaller driving force, while also reducing the probability of interference between the flip-plate assembly 1 and the flip-cavity assembly 2. In another embodiment, the motor housing 43 or the output shaft 41 of the drive motor 4 can be directly connected to the flip-plate assembly 1 or the flip-cavity assembly 2.

[0093] Specifically, the first end of the mounting rod 31 is fixedly connected to the back side of the flap assembly 1, and the second end of the mounting rod 31 is hinged to the inside of the smoke hood 6. The mounting rod 31 is at least partially a bent rod structure that bends inward and backward. The upper edge of the front opening of the smoke hood 6 is located in the concave space of the arc structure, which facilitates the connection between the mounting rod 31 and the flap assembly 1 and the smoke hood 6.

[0094] To improve the ease of connection between the mounting rod 31 and the smoke hood 6, a plate mounting seat 10 is installed on the front wall of the smoke collection chamber 63. The plate mounting seat 10 includes a seat body 101 and a shaft 102 protruding from one side of the seat body 101. The shaft 102 extends in the left-right direction, and the second end of the mounting rod 31 is rotatably mounted on the shaft 102. To improve the ease of connection between the mounting rod 31 and the flap assembly 1, a mounting support 13 is provided on the back side of the flap assembly 1, and the first end of the mounting rod 31 is mounted on the mounting support 13.

[0095] Specifically, the mounting bracket 13 includes a first plate and a second plate that are vertically connected. The first plate is fitted and secured to the back side of the flap assembly 1, and the second plate is connected to the first end of the mounting rod 31. Preferably, the second plate is detachably connected to the second end of the mounting rod 31 using fastening screws. At least two fastening screws are preferably spaced at intervals along the height direction of the flap assembly 1 to ensure a stable connection.

[0096] Mounting member 31 includes a main member 311 and a mounting plate 312. The main member 311 is at least partially bent backward, with its lower end connected to the flap assembly 1 and its upper end connected to the smoke hood 6. The mounting plate 312 is detachably connected to the main member 311, and the output shaft 41 is connected to the mounting plate 312. By providing a detachably connected main member 311 and mounting plate 312, it is convenient to set and adjust the connection position of the drive motor 4 on the mounting member 31, improving the convenience and reliability of the connection between the mounting member 31 and the drive motor 4. At the same time, it can reduce the overall processing cost of the mounting member 31 and simplify the structure. In other embodiments, the main member 311 and the mounting plate 312 can also be integrally formed.

[0097] To improve the ease of connection between the main rod 311 and the flap assembly 1, the main rod 311 includes a bent rod portion 3111 and a fixed rod portion 3112. One end of the bent rod portion 3111 is connected to a hinge seat on the smoke hood 6, and the other end is connected to the fixed rod portion 3112. The fixed rod portion 3112 extends along the height direction of the flap assembly 1 and is connected to the plate mounting base 10. This increases the contact area between the main rod 311 and the mounting base, improving the connection stability between the main rod 311 and the flap assembly 1. The bent rod portion 3111 can be, but is not limited to, an arc-shaped bent rod structure, a U-shaped bent rod structure, or a C-shaped bent rod structure, etc.

[0098] In this embodiment, the mounting plate 312 is connected to the rear bend of the mounting rod 31, thereby increasing the distance between the axis of the output shaft 41 and the rotation axis of the flap assembly 1, which facilitates the design and control of the installation position and rated driving force of the drive motor 4. That is, in the front-rear direction, the output shaft 41 is spaced at the rear side of the first end of the main rod 311, and in the vertical direction, the output shaft 41 is located between the two ends of the main rod 311.

[0099] One end of the mounting plate 312 is connected to the main rod 311, and the other end of the mounting plate 312 extends backward. The output shaft 41 of the drive motor 4 is connected to the rear end of the mounting plate 312. This allows for a reduction in the size of the main rod 311 while further increasing the distance between the axis of the output shaft 41 and the rotation axis of the flap assembly 1 in the front-rear direction, reducing interference between the drive motor 4 and the smoke hood 6, and improving the ease of installation of the drive motor 4.

[0100] Furthermore, the mounting plate 312 has a triangular structure, with one side of the triangular structure connected to the main rod 311 and the opposite end of the triangular structure connected to the output shaft 41. This allows for an increase in the connection area between the mounting plate 312 and the main rod 311 while reducing the size of the mounting plate 312, thereby reducing the footprint of the flip linkage assembly 3 and lowering costs.

[0101] The main rod 311 has multiple first mounting holes 3113 along its extension direction, and the mounting plate 312 has second mounting holes 3121. The second mounting holes 3121 can be aligned with any of the first mounting holes 3113, and the mounting plate 312 and the main rod 311 are fastened by passing through the aligned first mounting holes 3113 and second mounting holes 3121. This allows the mounting position of the mounting plate 312 on the main rod 311 to be adjusted during the assembly and debugging of the smoke collection device 100, thereby controlling the position of the output shaft 41 of the drive motor 4 relative to the main rod 311. This better ensures that the drive motor 4 can drive the flap assembly 1 to open at a suitable angle, improves the reliability of the smoke collection device 100 and the range hood, and reduces the processing and debugging costs of the smoke collection mechanism.

[0102] Furthermore, multiple second mounting holes 3121 are provided, and the arrangement of the second mounting holes 3121 is the same as that of the first mounting holes 3113. The number of second mounting holes 3121 is less than the number of first mounting holes 3113. The multiple second mounting holes 3121 are aligned one by one with the multiple first mounting holes 3113, thereby increasing the installation stability and reliability of the mounting plate 312 on the main rod 311.

[0103] Two mounting plates 312 are arranged opposite each other and spaced apart in the left-right direction. The main rod 311 is sandwiched between the two mounting plates 312, and the output shaft 41 passes through the two mounting plates 312. This can increase the local structural strength and rigidity of the mounting rod 31, ensure the connection stability and reliability of the drive motor 4 on the mounting rod 31, reduce the probability of deformation of the mounting plate 312 under stress, and improve the driving stability and reliability of the drive motor 4 on the flip plate assembly 1.

[0104] The transmission rod assembly 32 includes a first connecting rod 322 and a connecting shaft 321. The connecting shaft 321 extends in the left-right direction and is connected to the upper end of the flipping cavity assembly 2. The first connecting rod 322 connects the connecting shaft 321 and the drive motor 4. Specifically, the first connecting rod 322 is hinged to the motor housing 43 of the drive motor 4. Thus, when the drive motor 4 opens forward with the flipping assembly 1, the drive motor 4, along with the operation of the flipping assembly 1, drives the connecting shaft 321 forward via the first connecting rod 322, causing the upper end of the flipping cavity assembly 2 to move forward. When the flipping assembly 1 flips and closes, the drive motor 4 moves backward and, through the first connecting rod 322, drives the connecting shaft 321 backward, thereby causing the upper end of the flipping cavity assembly 2 to rotate backward to return to its initial position.

[0105] The drive motor 4 is higher than the upper end of the flipping cavity assembly 2. The upper end of the first connecting rod 322 is connected to the drive motor 4. The first connecting rod 322 extends downward at an angle from top to bottom and its front end is connected to the connecting shaft 321. When the output shaft 41 of the drive motor 4 rotates, the lower end of the main rod 311 flips forward under the driving action of the drive motor 4, and the drive motor 4 moves downward as a whole. This causes the upper end of the first connecting rod 322 to move downward, driving the lower end of the drive motor 4 to move forward, that is, driving the upper end of the flipping cavity assembly 2 to move forward. When the output shaft 41 of the drive motor 4 rotates in the opposite direction, the output shaft 41 drives the lower end of the main rod 311 to move backward, thereby driving the flipping plate assembly 1 to close. At the same time, the drive motor 4 rises as a whole, causing the upper end of the first connecting rod 322 to rise, while the lower end of the first connecting rod 322 moves backward, thereby driving the connecting shaft 321 to move backward, causing the upper end of the flipping cavity assembly 2 to move backward and reset.

[0106] The aforementioned structure of the first connecting rod 322 saves more driving force from the drive motor 4, and when the flap assembly 1 flips open, the distance between the flipping cavity assembly 2 and the upper end of the flap assembly 1 can be reduced, improving the smoke collection effect. In other embodiments, the first connecting rod 322 can also be a bent rod structure or other forms of rod-shaped structure.

[0107] To improve the ease of connection between the first connecting rod 322 and the drive motor 4, a convex shaft 42 is provided protruding from the motor housing 43 of the drive motor 4, and the upper end of the first connecting rod 322 is rotatably sleeved on the convex shaft 42. The convex shaft 42 and the output shaft 41 are respectively protruding on opposite sides of the motor housing 43 to improve the reliability of transmission and reduce the probability of interference between the mounting rod 31 and the transmission rod assembly 32.

[0108] The axes of the cam shaft 42 and the output shaft 41 are parallel and spaced apart to avoid dead points during movement and improve the driving reliability of the drive motor 4 for the flap assembly 1 and the flipping cavity assembly 2. Furthermore, when the smoke collection mechanism is in the closed state, in the front-rear direction, the cam shaft 42 is located in front of the output shaft 41, and the first connecting rod 322 is located entirely in front of the drive motor 4.

[0109] To further improve the operational stability of the tilting chamber assembly 2, the transmission rod assembly 32 also includes a second connecting rod 323. The lower end of the second connecting rod 323 is connected to the connecting shaft 321, and the upper end of the second connecting rod 323 is connected to the smoke hood 6. This arrangement allows the upper end of the tilting chamber assembly 2 to be supported on the smoke hood 6 via the second connecting rod 323, avoiding the problem of excessive force on the drive motor 4 and potential damage caused by the upper end of the tilting chamber assembly 2 being suspended and supported only on the drive motor 4 via the first connecting rod 322. This improves the stability and reliability of the tilting chamber assembly 2 and also extends the service life of the drive motor 4. Specifically, the upper end of the second connecting rod 323 is hinged to the smoke hood 6, and the lower end is connected to the connecting shaft 321.

[0110] Furthermore, at least two second connecting rods 323 are spaced apart in the left-right direction to reduce the force on a single second connecting rod 323, thereby further improving the motion stability and reliability of the flipping cavity assembly 2. Furthermore, the second connecting rods 323 are located on the side of the first connecting rod 322 away from the mounting member 31 to avoid interference between structures.

[0111] In this embodiment, a fixed base 30 is installed on the inner side of the smoke hood 6. The upper end of the second connecting rod 323 is rotatably mounted on the fixed base 30 via a hinge shaft, so that the second connecting rod 323 can rotate around the hinge shaft. Furthermore, the fixed base 30 has a U-shaped structure, with the bottom of the U-shaped structure connected to the smoke hood 6. The two second connecting rods 323 are respectively connected to the two sides of the U-shaped structure to improve the ease of connection between the fixed base 30 and the second connecting rods 323.

[0112] The second link 323 is preferably a U-shaped structure with the opening facing forward. That is, the second link 323 includes a main rod, an upper curved rod connected to the upper end of the main rod, and a lower curved rod connected to the lower end of the main rod. The upper curved rod extends forward from bottom to top and its front end is hinged to the fixed seat 30. The lower curved rod extends forward from top to bottom and its front end is connected to the connecting shaft 321. This helps to avoid interference between the second link 323 and the smoke hood 6.

[0113] The connecting shaft 321 includes a main shaft portion and two limiting ends connected to both ends of the main shaft portion, with at least one limiting end detachably connected to the main shaft portion. One end of the main shaft portion passes through the side wall of the smoke inlet 211 to extend out of the smoke inlet 211, and the corresponding limiting end is restricted from passing through the mounting shaft hole 23. Specifically, the connecting shaft 321 passes through the smoke collection side portion.

[0114] In this embodiment, to improve the installation reliability of the drive motor 4, the overall shape of the drive motor 4 is D-shaped, which facilitates determining the initial installation position of the drive motor 4 through the plane of the D-shaped structure. In other embodiments, other types of foolproof structures can be provided on the drive motor 4 to ensure the installation accuracy of the drive motor 4.

[0115] Furthermore, the mounting rod 31 is provided with a foolproof mark, which is used to mark the initial installation position of the drive motor 4 to prevent the drive motor 4 from being installed incorrectly and to improve the reliability of the drive motor 4. In this embodiment, the foolproof mark is a D-shaped hole opened on the mounting plate 312. In other embodiments, the foolproof mark may also be a raised or recessed structure, or a silkscreened indication, etc.

[0116] In this embodiment, the flipping linkage assembly 3 further includes a limiting rod 33. The second end of the limiting rod 33 is connected to the connecting shaft 321. The limiting rod 33 restricts the maximum flipping angle of the flipping cavity assembly 2. The hinge axis of the second end of the limiting rod 33 is parallel to and spaced apart from the hinge axis of the first end of the first connecting rod 322. When the drive motor 4 drives the connecting shaft 321 to move, the movement of the connecting shaft 321 causes the limiting rod 33 to rotate relative to the mounting rod 31. Since the limiting rod 33 is hinged to the mounting rod 31, the rotation stroke of the flipping cavity assembly 2 is limited by the limiting rod 33. Thus, the setting of the limiting rod 33 can limit the movement stroke of the flipping cavity assembly 2, thereby limiting the maximum opening angle of the flap assembly 1 relative to the smoke hood 6.

[0117] When the flap assembly 1 closes the smoke inlet 211, the first end of the limiting rod 33, the first end of the first connecting rod 322, and the output shaft 41 are arranged alternately from front to back in the front-to-back direction, thereby improving the reliability of linkage and limiting. That is, when the flap assembly 1 closes the smoke inlet 211, the rotation axis of the flap assembly 1, the hinge axis of the limiting rod 33 and the mounting rod 31, the first end of the first connecting rod 322, and the axis of the output shaft 41 are arranged alternately in parallel from front to back in the front-to-back direction.

[0118] Furthermore, in the vertical direction, the axis of the output shaft 41 is located between the two ends of the limiting rod 33. Thus, while keeping the relative position of the drive motor 4 of the connecting shaft 321 unchanged, the length of the limiting rod 33 is increased, thereby avoiding the problem that the maximum flipping angle of the flipping cavity assembly 2 is small due to the limiting rod 33 being too short.

[0119] In this embodiment, the first end of the limiting rod 33 is provided with a hinge hole, which can be aligned with a second mounting hole 3121. The limiting rod 33 is hinged to a fastener passing through the aligned hinge hole, the second mounting hole 3121, and the first mounting hole 3113. This simplifies the hinge structure between the limiting rod 33 and the mounting rod 31, improving the structural compactness. Furthermore, three second mounting holes 3121 are provided, with the hinge hole aligned with the middle second mounting hole 3121.

[0120] In this embodiment, the limiting rod 33 is preferably an arc-shaped structure with the opening facing forward, which is simple in structure and easy to set. However, it is understood that the shape of the limiting rod 33 can be specifically limited according to the maximum stroke required to open the flap assembly 1. Furthermore, one limiting rod 33 is provided on each of the left and right sides of the mounting rod 31 to ensure the limiting effect and limiting stability, and to reduce the probability of the limiting rod 33 being damaged by force.

[0121] In this embodiment, a mounting shaft hole 23 is provided on the side of the flipping cavity assembly 2. The mounting shaft hole 23 extends at least partially along the height direction of the flipping cavity assembly 2, and the connecting shaft 321 slides through the mounting shaft hole 23. That is, the connecting shaft 321 can slide along the mounting shaft hole 23, so that while the connecting shaft 321 drives the flipping cavity assembly 2 to flip back and forth, the vertical position of the connecting shaft 321 relative to the upper end of the flipping cavity assembly 2 is variable. This avoids the problem that when the upper end of the flipping cavity assembly 2 moves forward, the lower end of the flipping cavity assembly 2 needs to move back and forth or vertically. As a result, the lower end of the flipping cavity assembly 2 can be fixedly set relative to the smoke hood 6 in both the back-and-forth and vertical directions, simplifying the installation of the flipping cavity assembly 2 on the smoke hood 6.

[0122] In other embodiments, the connecting shaft 321 is directly rotatable or fixedly installed on the upper end of the flip cavity assembly 2, while the lower end of the flip cavity assembly 2 is slidably disposed in the smoke collection hood 6 in the vertical direction, thereby causing the upper end of the flip cavity assembly 2 to move forward and downward while the lower end of the flip cavity assembly 2 moves upward.

[0123] To improve the operational stability and reliability of the flap assembly 1 and the tilting cavity assembly 2, a tilting linkage assembly 3 is provided on each of the left and right sides of the tilting cavity assembly 2, a mounting rod 31 is provided on each of the left and right sides of the flap assembly 1, and a transmission rod group 32 is provided on each of the left and right sides of the tilting cavity assembly 2. A drive motor 4 is connected between one mounting rod 31 and the corresponding transmission rod group 32, and the other mounting rod 31 and transmission rod group 32 are linked together via a connecting structure 34. This ensures that both ends of the flap assembly 1 are supported on the smoke hood 6 via the mounting rod 31, and both ends of the tilting cavity assembly 2 are supported on the smoke hood 6 via connecting shafts 321, guaranteeing the stability of the flap assembly 1. Furthermore, the connection between the other mounting rod 31 and the transmission rod group 32 via the connecting structure 34 reduces the number of drive motors 4, lowering the drive cost. In other embodiments, the mounting rods 31 and transmission rod groups 32 in both sets of tilting linkage assemblies 3 can be connected via drive motors 4.

[0124] In this embodiment, the connecting structure 34 includes a connecting plate 341 and a first shaft 342 and a second shaft 343 protruding from opposite sides of the connecting plate 341. The first shaft 342 is connected to the mounting rod 31, and the second shaft 343 is hinged to the transmission rod assembly 32. The output shaft 41 is connected to the mounting rod 31. The first shaft 342 and the output shaft 41 are coaxially aligned, and the second shaft 343 is coaxially aligned with the hinge axis of the motor housing 43. This allows the two sets of flipping linkage components 3 to move synchronously, ensuring the stability of the left and right ends of the flipping plate assembly 1 and the flipping cavity assembly 2. The connecting plate 341 can be a circular plate, an elliptical plate, or other plate-shaped structure, as long as it avoids interference with the limiting rod 33.

[0125] like Figure 2 , Figure 6 and Figure 11As shown, the front side of the smoke collection hood 6 has an avoidance opening, which corresponds one-to-one with the flip linkage component 3. The flip linkage component 3 passes through the avoidance opening, allowing the flap component 1 to flip outward. To improve the structural aesthetics of the smoke collection device 100 and the range hood, the smoke collection device 100 also includes an oil baffle 8. One end of the oil baffle 8 is connected to the flap component 1, and the other end extends freely backward. The oil baffle 8 has an oil baffle cavity 82 with an upward-facing opening. The flip linkage component 3 is at least partially housed in the oil baffle cavity 82, so that the oil baffle 8 blocks the flip linkage component 3 upward. The oil baffle 8 passes through the avoidance opening. By setting the oil baffle 8, the flip linkage component 3 can be protected. On the one hand, this improves the overall aesthetics of the smoke collection device 100 and the range hood; on the other hand, it reduces the impact of oil fumes on the flip linkage component 3 and the drive motor 4, improves the operational reliability of the flip linkage component 3 and the drive motor 4, and reduces the difficulty of cleaning. Specifically, the lower end of the mounting rod 31, the lower end of the limiting rod 33, the lower end of the first connecting rod 322, and part of the connecting shaft 321 are located in the oil baffle chamber 82.

[0126] The connecting shaft 321 moves through the oil baffle 8. Specifically, the oil baffle 8 has an elongated clearance hole 81 on at least one side facing the tilting cavity assembly 2. The extension direction of the elongated clearance hole 81 is consistent with the movement trajectory of the connecting shaft 321. The connecting shaft 321 is movably disposed in the elongated clearance hole 81 to prevent the oil baffle 8 from affecting the connection between the tilting linkage assembly 3 and the tilting cavity assembly 2. Furthermore, elongated clearance holes 81 are provided on both the left and right sides of the oil baffle 8.

[0127] To further reduce the impact of oil fumes on the flip linkage component 3 and the drive motor 4, two side baffles 7 are provided inside the smoke collection hood 6. The two side baffles 7 are located on the left and right sides of the smoke inlet 211 and extend in the front-to-back direction. In the left-to-right direction, the side baffles 7 at least block the flip linkage component 3 located inside the smoke collection chamber 63. This can prevent the oil fumes entering from the smoke inlet 211 from flowing to the flip linkage component 3 and reduce the probability of the flip linkage component 3 being contaminated by oil fumes.

[0128] In this embodiment, the side smoke baffles 7 are installed inside the smoke collection hood 6, and the two side smoke baffles 7 are respectively located between the flipping cavity assembly 2 and the corresponding flipping linkage assembly 3. The side smoke baffles 7 are provided with elongated clearance holes for avoiding the connecting shaft 321, that is, the side smoke baffles 7 are fixedly installed relative to the smoke collection hood 6. In other embodiments, the side smoke baffles 7 may also be connected to the left and right sides of the flipping cavity assembly 2, that is, the side smoke baffles 7 are installed on the flipping cavity assembly 2 and move with the flipping cavity assembly 2.

[0129] The bottom of the smoke collection chamber 63 is equipped with a bottom mounting base 20. One bottom mounting base 20 is provided on each of the left and right sides of the flip chamber assembly 2. The lower ends of the flip chamber assembly 2 are rotatably mounted on the two bottom mounting bases 20 respectively.

[0130] like Figure 8 and Figure 12 As shown, in this embodiment, to improve the ease of disassembly and assembly of the smoke collection mechanism, a maintenance port 64 is provided on the side of the smoke collection hood 6. The maintenance port 64 is positioned directly opposite the drive motor 4 and part of the flipping linkage assembly 3, and the connecting shaft 321 is exposed through the maintenance port 64. The smoke collection device 100 also includes a maintenance plate, which is detachably installed on the smoke collection hood 6 to close the maintenance port 64. Furthermore, maintenance ports 64 and maintenance plates are provided on both the left and right sides of the smoke collection hood 6 to allow for maintenance of the linkage assembly of the smoke collection plate 11 on the corresponding sides.

[0131] By setting up an inspection plate and inspection port 64, when it is necessary to disassemble the smoke collection mechanism when the flap assembly 1 is in the closed state, first remove the inspection plate to expose the inspection port 64, and then remove the oil baffle 8; then remove the connection structure between the limit rod 33 and the mounting rod 31; then separate the mounting plate 312 from the main rod 311, so that the flap assembly 1 and the flipping cavity assembly 2 can be separated. Then the flap assembly 1 can be flipped open, and then the flipping cavity assembly 1 can be flipped outward to open, so as to realize the maintenance of the structure.

[0132] It is worth noting that when the flip plate assembly 1 is in the open state and the drive motor 4 or the flip linkage assembly 3 needs to be repaired, the oil baffle 8 should be removed first to expose the smoke gathering plate 11 linkage assembly. Then the connecting shaft 321 can be removed to separate the flip chamber assembly 2 and the flip plate assembly 1. Then the flip chamber assembly 2 and the flip plate assembly 1 can be repaired separately.

[0133] Example 2

[0134] This embodiment provides a smoke collection device 100 and a range hood. The smoke collection device 100 provided in this embodiment is a further improvement based on the smoke collection device 100 in Embodiment 1. This embodiment will not repeat the same structure as Embodiment 1.

[0135] like Figures 13 to 15 As shown, in this embodiment, the smoke gathering mechanism also includes an auxiliary linkage component 5, which is connected between the upper ends of the flap assembly 1 and the flip cavity assembly 2. The auxiliary linkage component 5 is configured to drive the upper end of the flip cavity assembly 2 to approach the flap assembly 1 when the flap assembly 1 is flipped open.

[0136] The smoke-gathering mechanism and range hood provided in this embodiment, when the flap assembly 1 is flipped open, the outward flipping of the flap assembly 1 drives the outward rotation of the flip cavity assembly 2, so that the flap assembly 1 and the flip cavity assembly 2 close together to form a smoke-gathering cavity. At the same time, since the outward flipping of the flap assembly 1 can drive the upper end of the flip cavity assembly 2 to move closer to the flap assembly 1, the size of the smoke-gathering cavity can be increased, thereby improving the smoke-gathering effect of the smoke-gathering cavity. Furthermore, this arrangement can enhance the smoke-gathering effect while reducing the size requirements of the smoke guide protrusion 12 on the back side of the smoke-gathering plate 11 and the matching requirements between the smoke guide protrusion 12 and the flip cavity assembly 2.

[0137] To improve the ease of installation and movement of the tilting chamber assembly 2, the tilting chamber assembly 2 includes an outer frame and a smoke collection chamber 21 that is slidably disposed inside the outer frame. The smoke collection chamber 21 can slide along the height direction of the outer frame. The drive motor 4 is connected to the outer frame for transmission. The lower end of the outer frame is used to rotately connect with the smoke collection hood 6. The auxiliary linkage assembly 5 is connected to the smoke collection chamber 21.

[0138] The aforementioned structural design of the flipping cavity assembly 2 allows the left and right ends of the flipping cavity assembly 2 to be rotatably connected to the smoke collection hood 6, improving the ease of disassembly of the flipping cavity assembly 2 on the smoke collection hood 6. At the same time, the smoke gathering cavity 21 is slidably disposed inside the mounting frame, allowing the smoke gathering cavity 21 and the mounting frame to flip outward as a whole, while the smoke gathering cavity 21 can slide relative to the mounting frame along the height direction to approach or move away from the smoke gathering plate 11, achieving a certain degree of decoupling between sliding and rotational movements, and improving the operational reliability of the flipping cavity assembly 2.

[0139] In this embodiment, the mounting frame includes two opposing and spaced-apart side slide rails 22. One side slide rail 22 is provided on each of the left and right sides of the smoke collection chamber 21, and the lower end of each side slide rail 22 is rotatably connected to the smoke collection hood 6. The extending direction of the side slide rails 22 is consistent with the height direction of the smoke collection chamber 21. The left and right sides of the smoke collection chamber 21 are slidably mounted on the two side slide rails 22 respectively. This simplifies the structure of the flipping chamber assembly 2 and reduces its weight.

[0140] Furthermore, the side slide rail 22 has mounting shaft holes 23 along its length, and the connecting shaft 321 passes through the mounting shaft holes 23. The smoke-collecting cavity 21 has clearance shaft holes 212 on its left and right sides, and the extending direction of the clearance shaft holes 212 is consistent with the extending direction of the mounting shaft holes 23. The mounting shaft holes 23 and the clearance shaft holes 212 are at least partially aligned, and the connecting shaft 321 passes through the clearance shaft holes 212. The provision of clearance shaft holes 212 reduces the fitting requirements between the tilting cavity assembly 2 and the connecting shaft 321, avoiding interference between the structures.

[0141] In this embodiment, the auxiliary linkage component 5 includes a slider 51 and a connecting rod 52. The slider 51 is slidably mounted on the flip plate assembly 1 along the height direction of the flip plate assembly 1. The two ends of the connecting rod 52 are respectively hinged to the upper ends of the slider 51 and the flip cavity assembly 2.

[0142] That is, when the smoke collecting plate 11 is flipped open, the smoke collecting cavity 21 and the side slide rail 22 are driven to rotate by the connecting shaft 321. Since there is a connecting rod 52 connecting the smoke collecting cavity 21 and the sliding member 51, the length of the connecting rod 52 limits the movement of the smoke collecting cavity 21 and the smoke collecting plate 11. When the smoke collecting cavity 21 and the smoke collecting plate 11 rotate, the sliding member 51 slides downward along the smoke collecting plate 11, thereby driving the smoke collecting cavity 21 to slide upward relative to the side slide rail 22 and approach the smoke collecting plate 11, thereby increasing the depth of the smoke collecting cavity and improving the smoke collecting effect.

[0143] In this embodiment, the top end of the smoke-collecting cavity 21 is hinged to the connecting rod 52, which facilitates control over the position of the smoke-collecting cavity 21 relative to the smoke-collecting plate 11, while also preventing interference between the connecting rod 52 and the smoke-guiding protrusion 12 on the back side of the smoke-collecting plate 11. In other embodiments, the smoke-collecting cavity 21 may be hinged to the connecting rod 52 at other locations.

[0144] Furthermore, when the flap assembly 1 is in the closed state, the connecting rod 52 extends straight from front to back or extends upward at an angle from front to back. Thus, when the sliding member 51 slides downward relative to the smoke collecting plate 11, it will pull the smoke collecting cavity 21 upward and closer to the smoke collecting plate 11.

[0145] To improve the sliding convenience of the slider 51, in this embodiment, a guide rail 55 is installed on the back side of the smoke gathering plate 11. The guide rail 55 extends along the height direction of the smoke gathering plate 11, and a guide groove is provided on the slide section. The slider 51 is slidably installed in the guide groove to ensure the sliding stability and reliability of the slider 51.

[0146] To improve the ease of connection between the connecting rod and the smoke-collecting cavity 21 and the sliding member 51, a first hinge shaft 53 is connected to the smoke-collecting cavity 21, and a second hinge shaft 54 ​​is connected to the sliding member 51. The two ends of the connecting rod 52 are respectively fitted onto the first hinge shaft 53 and the second hinge shaft 54. The first hinge shaft 53 and the second hinge shaft 54 ​​can be, but are not limited to, pins or other structures capable of hinged connection of the connecting rod 52.

[0147] In this embodiment, the left and right side walls of the smoke inlet 211 are provided with side baffles 24. The side baffles 24 extend backward to prevent the oil fumes from flowing to the side slide rail 22 and causing the slide rail to be covered with a lot of oil fumes. This prevents the side frame and the slide rail from sticking together and affecting the sliding of the smoke collection cavity 21, thereby improving the smoothness of the sliding of the smoke collection cavity 21.

[0148] To ensure the stability and smooth operation of the smoke collection chamber 21, at least two auxiliary linkage components 5 are provided at intervals along the left and right directions to ensure the stability of the force on the smoke collection chamber 21.

[0149] Example 3

[0150] This embodiment provides a smoke collection device 100 and a range hood. The smoke collection device 100 provided in this embodiment has a basically the same structure as that in Embodiment 1, with only some differences in the configuration. This embodiment will not describe the same structure as the above embodiment again.

[0151] like Figure 16 and Figure 17 As shown, in this embodiment, the mounting shaft hole 23 includes a first hole 231 and a second hole 232 communicating with the front end of the first hole 231. When the flap assembly 1 closes the smoke inlet 211, the connecting shaft 321 is located at the rear end of the first hole 231. The shape of the first hole 231 is consistent with the running trajectory of the connecting shaft 321 when the flap assembly 1 flips from the closed state to the open preset angle. The movement of the connecting shaft 321 along the second hole 232 drives the flipping cavity assembly 2 to flip. When the flap assembly 1 is at the maximum opening angle, the connecting shaft 321 is located at the upper part of the second hole 232.

[0152] In this embodiment, the smoke collection device 100 and range hood are provided. When the opening angle of the flap assembly 1 is less than or equal to a preset angle, the flap assembly 1 flips outward, causing the connecting shaft 321 to slide in the first hole 231. Since the trajectory of the first hole 231 is consistent with the movement trajectory of the connecting shaft 321, the movement of the connecting shaft 321 will not cause the flipping cavity assembly 2 to move. Thus, when the opening angle of the flap assembly 1 is less than or equal to the preset angle, the outward flipping movement of the flap assembly 1 will not cause the flipping cavity assembly 2 to move. When the flap assembly 1 continues to flip outward from the preset angle, the connecting shaft 321 continues to move forward. Since the second hole 232 extends upward, the previous movement of the connecting shaft 321 pulls the upper end of the flipping cavity assembly 2 to flip forward, thereby causing the flipping cavity assembly 2 and the flap assembly 1 to move in tandem. The flipping cavity assembly 2 flips out to increase the size of the smoke collection cavity, thereby improving the smoke collection effect.

[0153] The above settings allow the smoke collection device 100 and the range hood to control the movement of the flipping chamber assembly 2 and the flip plate assembly 1 according to the amount of smoke. For example, when the amount of smoke is small, the flipping angle of the flip plate assembly 1 can be controlled to be less than or equal to a preset angle, so that the flip plate assembly 1 opens outward while the flipping chamber assembly 2 does not flip relative to the smoke collection hood 6. This reduces the driving cost of the drive motor 4 while achieving smoke extraction. When the amount of smoke is large, the opening angle of the flip plate assembly 1 is greater than the preset angle, so that the flipping chamber assembly 2 flips out with the flip plate assembly 1. This makes the smoke collection chamber closer to the stove and increases the smoke collection area of ​​the smoke collection chamber, improving the smoke extraction effect and ensuring the smoke extraction effect.

[0154] In this embodiment, the first hole 231 is an arc-shaped hole with its opening facing upwards, and the second hole 232 is an elongated hole extending along the length of the flipping smoke chamber.

[0155] Furthermore, since the movement of the connecting shaft 321 within the first hole 231 will not cause the flipping cavity assembly 2 to move when the flipping assembly 1 is flipped closed, in order to ensure that the flipping cavity assembly 2 is accurately and reliably reset, the smoke gathering mechanism also includes a reset member 40, which is used to apply a backward flipping elastic force to the flipping cavity assembly 2.

[0156] Furthermore, the reset component 40 is a spring that extends in the front-to-back direction. The rear end of the spring is installed on the bottom of the back plate 611 or the smoke collection chamber 63, and the front end of the spring is connected to the flipping chamber assembly 2.

[0157] 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 will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. 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. A tobacco gathering mechanism, characterized by comprising: The invention relates to a smoke collecting device, comprising: a turnover cavity assembly (2) having a front-to-back through-type smoke inlet (211) and a lower end for connecting with a smoke collecting cover (6); a flap assembly (1) arranged at a front side of the turnover cavity assembly (2) and capable of turning to open or close the smoke inlet (211); a driving motor (4), an output shaft (41) of the driving motor (4) being in transmission connection with one of the flap assembly (1) and the turnover cavity assembly (2), and a motor housing (43) of the driving motor (4) being in transmission connection with the other one of the flap assembly (1) and the turnover cavity assembly (2), the driving motor (4) driving the flap assembly (1) and the turnover cavity assembly (2) to move together while moving with the flap assembly (1); the smoke collecting mechanism is used for cooperating with the smoke collecting cover (6), the lower end of the turnover cavity assembly (2) is movably mounted in a smoke collecting cavity (63) of the smoke collecting cover (6), and an upper part of the turnover cavity assembly (2) is capable of turning to extend out of a front side opening of the smoke collecting cover (6) or turning to retreat into the smoke collecting cavity (63); when the flap assembly (1) is closed relative to the smoke collecting cover (6), the turnover cavity assembly (2) is located inside the smoke collecting cavity (63), and the flap assembly (1) simultaneously closes the smoke inlet (211) and the front side opening; when the flap assembly (1) is opened relative to the smoke collecting cover (6), the upper end of the turnover cavity assembly (2) extends out of the front side opening, and the turnover cavity assembly (2) and the flap assembly (1) jointly form a lower opening smoke collecting cavity, the smoke collecting cavity being in communication with the smoke collecting cavity (63) through the smoke inlet (211).

2. The tobacco gathering mechanism according to claim 1, wherein, the smoke collecting mechanism comprises a mounting rod member (31), a first end of the mounting rod member (31) being connected with an upper end of the flap assembly (1) and a second end being used for being hingedly connected with the smoke collecting cover (6), and the output shaft (41) or the motor housing (43) being connected to the mounting rod member (31); and / or, the smoke collecting mechanism comprises a transmission rod group (32), the transmission rod group (32) being connected between the turnover cavity assembly (2) and the output shaft (41) or the motor housing (43); and / or, the motor housing (43) is in transmission connection with the turnover cavity assembly (2), the output shaft (41) is in transmission connection with the flap assembly (1) to drive the flap assembly (1) to rotate, and an axis of the output shaft (41) is parallel to and spaced apart from a rotation axis of the flap assembly (1).

3. The tobacco gathering mechanism according to claim 2, characterized in that, the mounting rod member (31) comprises a main rod member (311) and a mounting plate (312) connected with each other, the main rod member (311) being at least partially arranged in a rearwardly bent manner and a lower end being connected with the flap assembly (1), and the driving motor (4) being connected with the mounting plate (312); the mounting plate (312) is connected to a rearwardly bent part of the main rod member (311); and / or, a front end of the mounting plate (312) is connected with the main rod member (311) and a rear end is connected with the driving motor (4); and / or, the mounting plate (312) is detachably connected with the main rod member (311).

4. The tobacco gathering mechanism according to claim 3, characterized in that, The main rod member (311) is provided with a plurality of first mounting holes (3113) spaced along the extension direction thereof, the mounting plate (312) is provided with a second mounting hole (3121), the second mounting hole (3121) is alignable with any of the first mounting holes (3113), and the main rod member (311) and the mounting plate (312) are connected by a fastener penetrating the first mounting hole (3113) and the second mounting hole (3121).

5. The tobacco gathering mechanism according to claim 2, wherein, The transmission rod set (32) comprises a connecting shaft (321) and a first connecting rod (322), the connecting shaft (321) is parallel to and spaced from the output shaft (41) and is connected to the upper end of the turnover cavity assembly (2), and the first end of the first connecting rod (322) is hinged to the motor shell (43) and the second end is connected to the connecting shaft (321).

6. The tobacco gathering mechanism according to claim 5, characterized in that, The smoke gathering mechanism further comprises a second connecting rod (323), the lower end of the second connecting rod (323) is connected to the connecting shaft (321), and the upper end of the second connecting rod (323) is used for connecting with the smoke collecting cover (6); And / or, the first connecting rod (322) extends obliquely forward from top to bottom, and the lower end of the first connecting rod (322) is connected to the connecting shaft (321); And / or, the smoke gathering mechanism further comprises a limiting rod (33), the first end of the limiting rod (33) is connected to the connecting shaft (321), the second end of the limiting rod (33) is hinged to the mounting rod member (31), the limiting rod (33) limits the maximum turnover angle of the turnover cavity assembly (2), and the hinge axis of the second end of the limiting rod (33) is parallel to and spaced from the hinge axis of the first end of the first connecting rod (322).

7. The tobacco gathering mechanism according to claim 6, characterized in that, When the flap assembly (1) closes the smoke inlet (211), in the front-rear direction, the rotation axis of the flap assembly (1), the first end of the limiting rod (33), the first end of the first connecting rod (322) and the output shaft (41) are sequentially and spacedly arranged from front to rear; And / or, one limiting rod (33) is arranged on each of the left and right sides of the mounting rod member (31); And / or, the limiting rod (33) is an arc-shaped bent rod with an opening facing the front and upper direction.

8. The tobacco gathering mechanism according to claim 5, wherein, The side of the turnover cavity assembly (2) is provided with a mounting shaft hole (23), the mounting shaft hole (23) extends at least partially along the height direction of the turnover cavity assembly (2), and the connecting shaft (321) slides through the mounting shaft hole (23).

9. The tobacco gathering mechanism according to claim 8, characterized in that, The mounting shaft hole (23) comprises a first hole portion (231) and a second hole portion (232) communicated with the front end of the first hole portion (231), and when the flap assembly (1) closes the smoke inlet (211), the connecting shaft (321) is located at the rear end of the first hole portion (231); The shape of the first hole portion (231) is consistent with the running track of the connecting shaft (321) when the flap assembly (1) is turned from the closed state to the open state by a preset angle, and the connecting shaft (321) drives the turnover cavity assembly (2) to turn along the second hole portion (232).

10. The smoke drawing mechanism according to any one of claims 2-9, wherein, The motor shell (43) has a convex shaft (42) arranged in parallel and spaced apart with the output shaft (41), one of the convex shaft (42) and the output shaft (41) is connected with the mounting rod (31), and the other is connected with the transmission rod group (32); And / or, the mounting rod (31) is arranged on the left and right sides of the flap assembly (1), the transmission rod group (32) is arranged on the left and right sides of the turnover cavity assembly (2), the drive motor (4) is connected between the mounting rod (31) and the corresponding side transmission rod group (32), and the other mounting rod (31) and the transmission rod group (32) are connected through the linkage structure (34).

11. The smoke aggregation mechanism according to any one of claims 1-9, wherein, The smoke gathering mechanism further comprises an auxiliary linkage assembly (5) connected between the upper ends of the flap assembly (1) and the turnover cavity assembly (2), and the auxiliary linkage assembly (5) is configured to drive the upper end of the turnover cavity assembly (2) to be close to the flap assembly (1) when the flap assembly (1) is turned over and opened; And / or, the flap assembly (1) comprises a smoke gathering plate (11) and a smoke guide boss (12) protruding on the back side of the smoke gathering plate (11), the smoke gathering plate (11) can open or close the smoke inlet (211), and when the smoke gathering plate (11) closes the smoke inlet (211), the smoke guide boss (12) is located inside the smoke inlet (211).

12. An extractor hood comprising a hood (6) having a fume collecting cavity (63) and an open front side, characterized in that Further comprising the smoke gathering mechanism according to any one of claims 1-11, the upper end of the flap assembly (1) is rotatably installed in the smoke collecting cover (6), the lower end of the turnover cavity assembly (2) is movably installed in the smoke collecting cover (6) and is arranged opposite to the front opening, the drive motor (4) can drive the flap assembly (1) to turn over outward while driving the upper end of the turnover cavity assembly (2) to protrude forward out of the front opening, and the drive motor (4) can drive the flap assembly (1) to close relative to the smoke collecting cover (6) to close the front opening.

13. The hood according to claim 12, characterized in that, The side of the smoke collecting cover (6) is provided with an access opening (64), and a maintenance plate is detachably arranged at the access opening (64). The access opening (64) is arranged opposite to the drive motor (4).

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