Smoke collector and range hood

Abstract

The present invention provides a smoke collecting device and a range hood, and relates to the technical field of range hoods. The smoke collecting device comprises a housing assembly; a smoke collecting hood, a smoke inlet is provided on one side of the smoke collecting hood; a baffle, the baffle is movably connected to the smoke collecting hood, and is used to open or close the smoke inlet; a driving assembly, the driving assembly is transmission-connected to the smoke collecting hood, and is used to drive the smoke collecting hood to extend out or be stored in the housing assembly; a linkage assembly, the linkage assembly is installed on the housing assembly, and during the process of the smoke collecting hood extending out of the housing assembly, the linkage assembly drives the baffle to move to the smoke inlet opening position. The present invention alleviates the technical problems in the related art that a single power source can only satisfy a single action, and that setting multiple power sources increases the cost and manufacturing difficulty.

Description

Technical Field

[0001] The present invention relates to the technical field of kitchen appliances, and in particular to a smoke collecting device and a range hood. Background Art

[0002] The range hood can quickly extract the waste from the combustion of the gas stove and the oil smoke that is harmful to the human body generated during the user's cooking process and discharge it outdoors. The surface of the smoke inlet of the household range hood is sticky with oil, which affects the appearance. Therefore, there are many electric flap-type range hoods on the market, which hide the smoke inlet. When working, the electric push rod drives the rotating mechanism to open the flap, or the smoke inlet originally hidden inside the body is moved out in a straight line. Generally, one power source can only meet one action, resulting in poor smoking effect; in order to ensure multiple actions, multiple power sources will be set, which increases the cost and the difficulty of production. Summary of the invention

[0003] The object of the present invention is to provide a smoke collecting device and a range hood to alleviate the technical problems in the related art that a single power source can only satisfy a single action, and that setting up multiple power sources increases the cost and manufacturing difficulty.

[0004] In a first aspect, the present invention provides a smoke collecting device, comprising:

[0005] Housing components;

[0006] A smoke collecting hood, wherein the smoke collecting hood is slidably connected to the housing assembly in a vertical direction, and a smoke inlet is provided on one side of the smoke collecting hood;

[0007] a baffle, the baffle being movably connected to the smoke collecting hood and used for opening or closing the smoke inlet;

[0008] A driving assembly, the driving assembly is drivingly connected to the smoke collecting hood and is used to drive the smoke collecting hood to extend out or be accommodated in the housing assembly;

[0009] A linkage component is installed on the shell component. When the smoke hood extends out of the shell component, the linkage component drives the baffle to open the smoke inlet.

[0010] In an optional embodiment, the linkage assembly includes an elastic module, the baffle is hinged to the smoke collecting hood via the elastic module, and the elastic module enables the baffle to have a movement tendency to open the smoke inlet.

[0011] In an optional embodiment, the torsion spring module includes a first fixing plate, a rotating shaft, a first elastic member and a second fixing plate;

[0012] The first fixing plate and the second fixing plate are sleeved on the rotating shaft and are rotatably connected to the rotating shaft. The first elastic member is sleeved on the rotating shaft. The first fixing plate is connected to the smoke hood, and the second fixing plate is connected to the baffle.

[0013] In an optional embodiment, the opening angle range of the first fixing plate and the second fixing plate is 60°-150°.

[0014] In an optional embodiment, the linkage assembly further includes a first roller, which is arranged on the shell assembly and placed on a side of the baffle away from the smoke inlet, a rolling groove is provided on the side of the baffle away from the smoke inlet, and the first roller rolls in cooperation with the rolling groove.

[0015] In an optional embodiment, the smoke collection device further includes a sealing assembly, which includes a flange, a support platform and a sealing gasket, wherein the support platform is arranged on the outer shell assembly and placed on the upper part of the roller, the flange is located above the support platform and is installed on the smoke collection hood, and the sealing gasket is arranged outside the support platform. When the smoke collection hood is fully extended out of the outer shell assembly, the flange is in contact with the sealing gasket to seal the gap between the roller and the smoke collection hood.

[0016] In an optional embodiment, the linkage assembly includes a rotating assembly and a driven assembly;

[0017] The rotating component is arranged on the smoke collecting hood, one end of the rotating component is connected to the baffle, and the other end is connected to the driven component, and the end of the driven component away from the rotating component is connected to the outer shell component. When the driving component drives the smoke collecting hood to extend out of the outer shell component, the driven component drives the rotating component to rotate so that the baffle opens the smoke inlet.

[0018] In an optional embodiment, the smoke collecting device further comprises a limiting assembly, and the limiting assembly comprises a first limiting box;

[0019] The first limiting box is arranged on the housing component, a second limiting groove along the vertical direction is formed in the first limiting box, and one end of the driven component is slidably matched with the second limiting groove.

[0020] The driven component includes a guide member and a transmission member, one end of the guide member is slidably connected to the first limit box, and the other end is connected to the transmission member, and one end of the transmission member away from the guide member is connected to the rotating component.

[0021] In an optional embodiment, the guide member includes a first connecting rod, and the transmission member includes a second connecting rod and a third connecting rod; one end of the first connecting rod is slidably connected to the limit assembly through a first rotating shaft, and the other end is connected to the second connecting rod through a second rotating shaft;

[0022] One end of the second connecting rod away from the second rotating shaft is connected to the third connecting rod through a third rotating shaft, the middle part of the second connecting rod is connected to the smoke collecting hood through a fourth rotating shaft, and the second connecting rod rotates around the fourth rotating shaft;

[0023] One end of the third connecting rod away from the third connecting rod is connected to the rotating assembly through a fifth rotating shaft.

[0024] In an optional embodiment, the driven assembly includes a second roller, a roller fixing frame and a flexible member;

[0025] The second roller is connected to the smoke collecting hood via the roller fixing frame, the flexible member passes through the bottom of the second roller, one end of the flexible member is connected to the rotating assembly, and the other end is connected to the outer shell assembly.

[0026] In an optional embodiment, the driven assembly further includes a limiting bracket, the limiting bracket is connected to the second roller, an annular gap is formed between the limiting bracket and the inner groove of the surface of the second roller, and the flexible member passes through the annular gap.

[0027] In an optional embodiment, the cross-section of the limiting bracket is U-shaped, a limiting boss is provided on the inner side of the limiting bracket, and a space is formed between the limiting boss and the groove of the second roller to accommodate and limit the flexible member.

[0028] In an optional embodiment, the limiting bracket is arranged below the axis of the second roller, and the coverage angle range of the limiting bracket is 90°-180°.

[0029] In an optional embodiment, the rotating assembly includes a rotating bracket and a bracket rotating shaft;

[0030] The rotating bracket is rotatably connected to the smoke collecting hood via the bracket rotating shaft. One end of the rotating bracket is connected to the baffle, and the other end is connected to the driven component.

[0031] In an optional embodiment, the smoke collecting device further comprises a second elastic member, which enables the baffle to have a movement tendency to close the smoke inlet, and when the baffle opens the smoke inlet, the second elastic member, the baffle and the smoke collecting hood form a smoke collecting cavity.

[0032] In an optional embodiment, the driving assembly includes a screw, a screw connecting plate, a screw movable block and a screw motor;

[0033] One side of the screw connecting plate is connected to the smoke hood, and the other side is connected to the screw movable block. The screw movable block is arranged on the screw and moves with the screw. One end of the screw is connected to the driving end of the screw motor.

[0034] In an optional embodiment, a sealing member is provided on a side of the screw rod close to the screw rod connecting plate, and a groove is provided on the sealing member to accommodate the screw rod movable block to slide relative to the screw rod.

[0035] In an optional embodiment, the driving assembly further includes a slide rail and a slider, the slide rail is disposed on the shell assembly, and the smoke collecting hood is slidably connected to the shell assembly via the slide rail and the slider.

[0036] In an optional embodiment, the smoke collecting device also includes an oil circuit structure, which includes an oil baffle plate, an oil circuit channel and an oil cup, the oil baffle plate is connected to the outer shell assembly, the oil cup is arranged at the lower end of the smoke collecting hood, and the oil baffle plate, the oil circuit channel and the oil cup are connected in sequence.

[0037] In an optional embodiment, the oil baffle plate includes a front side plate and a horizontal plate, the horizontal plate is arranged in the outer shell assembly, an oil plate opening is opened on the front side plate at one end close to the horizontal plate, a first oil baffle edge is provided on the outer periphery of the oil baffle plate, a second oil baffle edge is provided on the edge of the oil plate opening, the first oil baffle edge and the second oil baffle edge form an oil guide groove with the horizontal plate, a drainage port connected to the oil guide groove is provided on the front side plate, an oil receiving port is provided on the smoke hood, when the smoke hood is fully extended out of the outer shell assembly, the oil receiving port is located in the vertical direction of the lowest point of the drainage port, an oil leakage hole is provided on the inner side of the smoke hood, and the oil passage is respectively connected to the drainage port, the oil receiving port and the oil leakage hole.

[0038] In an optional embodiment, the angle between the front side plate and the horizontal plate is 8°-45°.

[0039] In a second aspect, the present invention provides a range hood, comprising a volute assembly and a smoke collecting device as described in any one of the aforementioned embodiments, wherein the volute assembly is arranged in the outer shell assembly.

[0040] In an optional embodiment, the range hood further comprises a sensor module, the sensor module is arranged on the housing assembly, the sensor module comprises a sensor and a control board, and the sensor is electrically connected to the control board;

[0041] The sensor is an infrared sensor or a sound sensor.

[0042] By adopting the above technical solution, the present invention can achieve the following beneficial effects:

[0043] The present invention sets a driving component and a linkage component. The driving component is connected to the smoke hood through transmission. The linkage component is installed in the outer shell component. When the driving component drives the smoke hood to extend out of the outer shell component, the linkage component can drive the baffle connected thereto to open the smoke inlet. The present invention sets a single power source to simultaneously meet the multiple actions of moving the smoke hood and driving the baffle to open and close the smoke inlet, thereby alleviating the technical problems in the related art that a single power source can only meet a single action and that setting multiple power sources increases the cost and manufacturing difficulty. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the related technologies, the drawings required for use in the specific embodiments or the related technical descriptions will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0045] Figure 1 A schematic diagram of the coordination between a range hood and a cabinet provided in the first embodiment of the present invention;

[0046] Figure 2 A schematic diagram of a range hood in a hidden state provided by the first embodiment of the present invention;

[0047] Figure 3 A schematic diagram of a range hood in an extended state provided by the first embodiment of the present invention;

[0048] Figure 4 An exploded schematic diagram of a range hood provided in Embodiment 1 of the present invention;

[0049] Figure 5 The operation diagram of the range hood provided in the first embodiment of the present invention is as follows Figure 1 ;

[0050] Figure 6 The operation diagram of the range hood provided in the first embodiment of the present invention is as follows Figure 2 ;

[0051] Figure 7 A schematic diagram of the structure of the smoke collecting device provided in the first embodiment of the present invention Figure 1 ;

[0052] Figure 8 A schematic diagram of the structure of the smoke collecting device provided in the first embodiment of the present invention Figure 2 ;

[0053] Fig. 9A schematic diagram of the structure of the smoke collecting device provided in the first embodiment of the present invention Figure 3 ;

[0054] Fig.10 A schematic diagram of a torsion spring module of a smoke collecting device provided in Embodiment 1 of the present invention in a compressed state;

[0055] Fig.11 A schematic diagram of a torsion spring module of a smoke collecting device provided in Embodiment 1 of the present invention in a natural state;

[0056] Fig.12 A schematic diagram of a grease path of a smoke collecting device provided in Embodiment 1 of the present invention;

[0057] Fig.13 A schematic structural diagram of an oil receiving port of a smoke collecting device provided in Embodiment 1 of the present invention;

[0058] Fig.14 A schematic structural diagram of an oil baffle plate of a smoke collecting device provided in Embodiment 1 of the present invention;

[0059] Fig.15 A side view of an oil baffle plate of a smoke collecting device provided in Embodiment 1 of the present invention;

[0060] Fig.16 A schematic diagram of the air inlet gap of a range hood provided in Embodiment 1 of the present invention;

[0061] Fig.17 A schematic structural diagram of a sealing assembly of a smoke collecting device provided in Embodiment 1 of the present invention;

[0062] Fig.18 For the present invention Fig.17 The enlarged view of point A in the middle;

[0063] Fig.19 A schematic diagram of the structure of a range hood provided in the second embodiment of the present invention Figure 1 ;

[0064] Fig. 20 A schematic diagram of a partial structure of a smoke collecting device provided in Embodiment 2 of the present invention;

[0065] Fig.21 A schematic structural diagram of a multi-link assembly of a smoke collecting device provided in Embodiment 2 of the present invention;

[0066] Fig. 22 A schematic structural diagram of a position limiting assembly of a smoke collecting device provided in Embodiment 2 of the present invention;

[0067] Fig.23 A schematic diagram of the structure of a driving assembly of a smoke collecting device provided in Embodiment 2 of the present invention;

[0068] Fig.24A schematic diagram of the structure of a sensor module of a smoke collecting device provided in Embodiment 2 of the present invention;

[0069] Fig.25 Schematic diagram of the working state of the range hood of the smoke collecting device provided in the second embodiment of the present invention Figure 1 ;

[0070] Fig.26 Schematic diagram of the working state of the range hood of the smoke collecting device provided in the second embodiment of the present invention Figure 2 ;

[0071] Fig. 27 A schematic diagram of the structure of a range hood provided in Embodiment 3 of the present invention;

[0072] Fig.28 A schematic diagram of a partial structure of a smoke collecting device provided in Embodiment 3 of the present invention;

[0073] Fig.29 A schematic diagram of the structure of the linkage assembly of the smoke collecting device provided in the third embodiment of the present invention;

[0074] Fig.30 A cross-sectional view of a linkage assembly of a smoke collecting device provided in Embodiment 3 of the present invention;

[0075] Fig.31 A schematic structural diagram of a limit bracket of a smoke collecting device provided in Embodiment 3 of the present invention;

[0076] Fig.32 A front view of a limit bracket of a smoke collecting device provided in Embodiment 3 of the present invention;

[0077] Fig.33 The working state of the range hood provided in the third embodiment of the present invention is shown in FIG. Figure 1 ;

[0078] Fig.34 The working state of the range hood provided in the third embodiment of the present invention is shown in FIG. Figure 2 ;

[0079] Fig.35 This is a schematic structural diagram of the linkage assembly of the smoke collecting device provided in the fourth embodiment of the present invention.

[0080] Icons: 100-range hood; 200-volute assembly; 300-housing assembly; 301-housing top plate; 302-housing enclosure; 303-housing bottom plate; 304-housing back plate; 400-sensor module; 401-sensor; 402-control board; 500-smoke hood; 600-baffle; 700-drive assembly; 701-screw; 702-screw connecting plate; 703-screw movable block; 704-screw motor; 705-seal Components; 706-slot; 707-slide rail; 800-linkage assembly; 801-elastic module; 8011-first fixed plate; 8012-rotating shaft; 8013-torsion spring; 8014-second fixed plate; 802-first roller; 8021-rolling groove; 803-sealing assembly; 8031-flange edge; 8032-support platform; 8033-sealing pad; 3034-air inlet gap; 804-driven assembly; 8041-first connecting rod; 8042-second connecting rod; 8043-third connecting rod; 8044-first rotating axis; 8045-second rotating axis; 8046-third rotating axis; 8047-fourth rotating axis; 8048-fifth rotating axis; 8049-second roller; 8050-roller fixing frame; 8051-flexible member; 8052-limiting bracket; 8053-limiting boss; 8054-roller rotating axis; 8055-connecting rod; 8056-first limiting groove; 806-rotating assembly; 8061-rotating bracket; 8062-bracket rotating axis; 807-first limit box; 808-second limit groove; 809-second limit box; 810-second elastic member; 901-oil baffle plate; 9011-front side plate; 9012-horizontal plate; 902-oil cup; 903-oil plate opening; 904-first oil baffle edge; 905-second oil baffle edge; 906-oil guide groove; 907-drainage port; 908-oil receiving port. DETAILED DESCRIPTION

[0081] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0082] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0083] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0084] Embodiment 1

[0085] This embodiment provides a range hood 100, see Figure 4 The range hood 100 includes a volute assembly 200 and a smoke collecting device. The volute assembly 200 is arranged in the outer shell assembly 300. When the driving assembly 700 drives the smoke hood 500 to extend out of the outer shell assembly 300, the linkage assembly 800 can drive the baffle 600 connected thereto to open the smoke inlet. By setting a single power source, multiple actions of moving the smoke hood 500 and driving the baffle 600 to open and close the smoke inlet can be satisfied at the same time, thereby alleviating the technical problems in the related art that a single power source can only satisfy a single action and setting multiple power sources causes increased costs and manufacturing difficulty.

[0086] Specifically, see Figure 1 , Figure 2 and Figure 4 When the range hood 100 is turned off, the smoke collecting device is placed in the shell assembly 300 as a whole, and the whole machine is hung on the wall by a hook. At the same time, the whole machine is integrated with the cabinet and is completely hidden in the cabinet. The purpose of this hidden design is to better cooperate with the cabinet, which changes the problem that the traditional range hood 100 exceeds the depth of the cabinet, makes the kitchen more refined, makes the range hood 100 and the cabinet beautifully integrated, ensures the cleanliness of the kitchen, and makes it convenient for users to clean the wall; when the range hood 100 is turned on, the driving assembly 700 drives the smoke hood 500 to move downward in the vertical direction, so that the smoke hood 500 descends to absorb oil smoke, and a baffle 600 is arranged above the smoke inlet to increase the smoke collection effect, and the smoke inlet is shielded to a certain extent while improving the overall smoking effect of the range hood 100.

[0087] See also Figure 3 and Fig.24 In an optional implementation of this embodiment, the range hood 100 further includes a sensor module 400, which is arranged on the housing assembly 300. The sensor module 400 includes a sensor 401 and a control board 402, and the sensor 401 and the control board 402 are electrically connected; the sensor 401 is an infrared sensor or a sound sensor. The range hood 100 as a whole is divided into two states, namely, a hidden state and a working state. In the hidden state, the smoke hood 500 is hidden inside the housing assembly 300, and the housing assembly 300 is hidden in the cabinet, and the lower surface of the whole machine is visible when looking up; the lower surface of the whole machine is provided with a sensor module 400. When the range hood 100 is working, the user's hand moves on the front side of the lower surface of the whole machine, and the sensor 401 senses a signal, and the signal is transmitted to the control board 402. The control board 402 issues a command to start the driving assembly 700 to start working, and to run the steps of lowering the smoke hood 500 and opening the baffle 600. When a sound sensor is used, the user issues a command through sound.

[0088] The smoke collecting device provided in this embodiment includes: Figure 4 , the smoke collecting device comprises:

[0089] The outer shell assembly 300, the smoke hood 500, the baffle 600, the driving assembly 700 and the linkage assembly 800. The smoke hood 500 is slidably connected to the outer shell assembly 300 in the vertical direction, and a smoke inlet is provided on one side of the smoke hood 500. The baffle 600 is movably connected to the smoke hood 500 for opening or closing the smoke inlet. The driving assembly 700 is transmission-connected to the smoke hood 500 for driving the smoke hood 500 to extend out or be stored in the outer shell assembly 300. The linkage assembly 800 is installed on the outer shell assembly 300. When the smoke hood 500 extends out of the outer shell assembly 300, the linkage assembly 800 drives the baffle 600 to move toward the open position of the smoke inlet.

[0090] Specifically, the shell assembly 300 includes a shell top plate 301, a shell enclosure 302, a shell bottom plate 303 and a shell rear plate 304. The shell enclosure 302, the shell top plate 301, the shell bottom plate 303 and the shell rear plate 304 together form a rectangular cabinet. The shell rear plate 304 is fixed on the wall. The volute assembly 200 is arranged on the inner wall of the shell enclosure 302, and the smoke inlet chamber assembly is housed inside the shell assembly 300.

[0091] See also Figure 5 and Figure 6In an optional implementation manner of the present embodiment, the linkage assembly 800 includes an elastic module 801, and the baffle 600 is hinged to the smoke hood 500 through the elastic module 801. The elastic module 801 enables the baffle 600 to have a movement tendency to open the smoke inlet. The number of elastic modules 801 is two, and the two elastic modules 801 are respectively arranged at both ends of the smoke hood 500 and the baffle 600, and the two elastic modules 801 are symmetrically arranged about the axis in the vertical direction of the smoke hood 500 and the baffle 600.

[0092] See also Fig.10 and Fig.11 The elastic module 801 includes a first fixed plate 8011, a rotating shaft 8012, a first elastic member, and a second fixed plate 8014; in this embodiment, the first elastic member is a torsion spring 8013, the first fixed plate 8011 and the second fixed plate 8014 are sleeved on the outside of the rotating shaft 8012, and are rotatably connected around the rotating shaft 8012, the torsion spring 8013 is sleeved between the rotating shaft 8012 and the first fixed plate 8011 and the second fixed plate 8014, the first fixed plate 8011 is connected to the smoke hood 500 by fixing bolts, and the second fixed plate 8014 is connected to the baffle 600 by fixing bolts or fixing screws. When the baffle 600 needs to be disassembled and cleaned, it is only necessary to remove the fixing screws between the elastic module 801 and the smoke hood 500 or the baffle 600 without affecting other structures, and the baffle 600 can be cleaned and replaced, which makes maintenance and disassembly convenient and improves user experience.

[0093] The opening and closing angles of the baffle 600 are related to the elastic force of the elastic module 801. When the opening angle of the baffle 600 is maintained at the minimum angle, it is in a compressed state, and the baffle 600 is subjected to an external force so that the elastic force of the elastic module 801 reaches a maximum state; and when the external force applied to the baffle 600 is released, so that the elastic force of the elastic module 801 is in a minimum state, that is, it is in a natural state, at this time, the opening angle of the baffle 600 reaches the maximum, the smoke-collecting area is improved, and the smoking effect is better; and in the process from the baffle 600 being subjected to an external force so that the elastic force of the elastic module 801 reaches a maximum state to the external force being released so that the elastic force of the elastic module 801 is in a minimum state, the opening angle of the baffle 600 transitions from the minimum angle to the maximum angle. Specifically, under normal non-compression conditions, the opening angle range of the first fixed plate 8011 and the second fixed plate 8014 is 60°-150°, and the opening angle of the two in this embodiment is 120°.

[0094] See also Figure 7 , Figure 8 , Fig. 9In an optional implementation manner of the present embodiment, the linkage component 800 also includes a first roller 802, which is arranged on the shell component 300 and is placed on the side of the baffle 600 away from the smoke inlet. A rolling groove 8021 is provided on the side of the baffle 600 away from the smoke inlet. The first roller 802 rolls with the rolling groove 8021. The number of the first rollers 802 and the rolling groove 8021 are two respectively. The two first rollers 802 are arranged on the shell bottom plate 303, and the two first rollers 802 are symmetrically arranged about the axis of the shell bottom plate 303 in the vertical direction. The two rolling grooves 8021 are opened on the baffle 600 and are symmetrically arranged about the axis of the baffle 600 in the vertical direction. The two first rollers are matched with the two rolling grooves in a one-to-one manner, and one side of the elastic module 801 is connected to the rolling groove 8021 to prevent the first roller 802 from directly contacting the baffle 600. The hood starts to work, the driving assembly 700 drives the smoke hood 500 to move, the first roller 802 slides relative to the baffle 600, and the baffle 600 is acted upon by the elastic module 801, so that the baffle 600 starts to rotate around the rotation axis 8012. Figure 5 and Figure 6 802 and the smoke inlet chamber assembly are hidden, and the baffle 600 is automatically opened or closed by the first roller 802 and the elastic module 801 during the lifting and lowering of the smoke hood 500, without the need to separately set a driving member or a connecting rod transmission, thereby saving costs and making the overall structure move up and down reliably and not easily damaged.

[0095] When the range hood 100 is in operation, a gap is formed between the first roller 802 and the front side of the smoke hood 500. When the range hood is operating normally, part of the oil smoke enters the inner side of the outer shell assembly 300 through the gap, and part of the oil smoke condenses on the surface of the baffle 600, the surface of the rolling groove 8021, and the surface of the first roller 802 to form grease. The grease on the surface of the baffle 600 may drip, and the grease on the surface of the rolling groove 8021 and the surface of the first roller 802 increases the friction during rolling, making it difficult for the first roller 802 to roll.

[0096] In contrast, see Fig.16 , Fig.17 , Fig.18 and Fig. 22In an optional implementation manner of the present embodiment, it is more preferred that the smoke collecting device further includes a sealing component 803, the sealing component 803 includes a flange edge 8031, a support platform 8032 and a sealing gasket 8033, the support platform 8032 is arranged on the outer shell component 300 and is placed on the upper part of the first roller 802, the flange edge 8031 ​​is located on the upper part of the support platform 8032 and is fixed to the smoke collecting hood 500, and the sealing gasket 8033 is arranged outside the support platform 8032. When the range hood 100 starts to work, the driving component 700 drives the smoke collecting hood 500 to start moving, and when the smoke collecting hood 500 is completely extended out of the outer shell component 300, the flange edge 8031 ​​and the sealing gasket 8033 contact to seal the air inlet gap 3034 formed between the first roller 802 and the smoke collecting hood 500, so that the cooking oil smoke cannot pass through this area, thereby solving the above-mentioned oil circuit problem.

[0097] See also Fig. 20 In an optional implementation manner of this embodiment, the driving assembly 700 includes a screw rod 701, a screw rod connecting plate 702, a screw rod movable block 703 and a screw rod motor 704; one side of the screw rod connecting plate 702 is connected to the smoke hood 500, and the other side is connected to the screw rod movable block 703, the screw rod movable block 703 is arranged on the screw rod 701 and moves with the screw rod 701, one end of the screw rod 701 is connected to the driving end of the screw rod motor 704, and the rotation of the screw rod 701 drives the screw rod movable block 703 along The screw rod 701 moves, thereby driving the screw rod connecting plate 702 fixed to the screw rod movable block 703 to move, thereby driving the smoke hood 500 connected to the screw rod connecting plate 702 to also reciprocate linearly with the screw rod movable block 703. The driving component 700 drives the smoke hood 500 to extend or be retracted into the outer shell component 300. The coordinated movement of the screw rod 701 and the screw rod movable block 703 can realize linear fixed-point and positioning control, so that the overall structure can move up and down reliably, thereby extending the service life.

[0098] It should be noted that the power source of the drive assembly 700 is not limited to the above-mentioned structure, and may also be other power sources such as an electric push rod. The present application does not limit the specific structure of the drive assembly 700.

[0099] See also Fig.23In an optional implementation manner of the present embodiment, preferably, a sealing member 705 is provided on one side of the screw rod 701 close to the screw rod connecting plate 702, and a groove 706 is provided on the sealing member 705 for accommodating the screw rod movable block 703 to slide relative to the screw rod 701, and the screw rod movable block 703 passes through the sealing member 705 and is transmission-connected with the screw rod 701. The sealing member 705 in the present embodiment is a rubber sealing pad 8033, and the groove 706 is a V-groove to improve the sealing effect, and can also be an arc groove, etc. The present application does not impose specific restrictions on it. The setting of the sealing member 705 ensures that the screw rod 701 is sealed while the screw rod movable block 703 is running, so as to avoid the influence of grease solidification on the transmission of the screw rod 701, thereby ensuring the normal transmission of the screw rod 701 and improving the service life.

[0100] See also Figure 4 In an optional implementation manner of the present embodiment, it is more preferred that the driving assembly 700 also includes a slide rail 707 and a slider, the slide rail 707 is arranged on the shell assembly 300, the smoke hood 500 is slidably connected to the shell assembly 300 through the slide rail 707 and the slider, the slide rail 707 is located on both sides of the screw rod 701 and is fixedly mounted on the inner wall of the shell rear plate 304, the slider is mounted on the smoke hood 500 and slides with the slide rail 707. By setting the slide rail 707, the stability of the smoke hood 500 during operation is increased, and the movement effect and service life of the overall movement of the smoke hood 500 are improved.

[0101] See also Fig.12 , Fig.13 , Fig.14 and Fig.15In an optional implementation manner of this embodiment, the smoke collecting device further includes an oil circuit structure, the oil circuit structure includes an oil baffle plate 901, an oil circuit channel and an oil cup 902, the oil baffle plate 901 is connected to the housing assembly 300, the oil cup 902 is arranged at the lower end of the smoke collecting hood 500 and moves synchronously with the smoke collecting hood 500, specifically, the oil baffle plate 901 includes a front side plate 9011 and a horizontal plate 9012, and a certain angle is formed between the front side plate 9011 and the horizontal plate 9012, and the angle is 8°-45 The preferred angle in this embodiment is 25°. The horizontal plate 9012 is arranged in the housing assembly 300 and connected to the housing bottom plate 303, and the rear side of the horizontal plate 9012 abuts against the housing rear plate 304. An oil plate opening 903 is provided on the front side plate 9011 at one end close to the horizontal plate 9012. A first oil retaining edge 904 is provided on the periphery of the oil retaining plate 901, and a second oil retaining edge 905 is provided on the edge of the oil retaining edge 904 and the second oil retaining edge 905. The vertical height is d1, where d1 is greater than 3 mm, and preferably d1 = 6 mm in this embodiment. The first oil retaining edge 904 and the second oil retaining edge 905 form an oil guide groove 906 with the horizontal plate 9012. The narrowest width of the oil guide groove 906 is d2, where d2>6 mm, and preferably d2 = 25 mm in this embodiment. The oil guide groove 906 can prevent grease from solidifying and blocking the oil path. A drainage port 907 connected to the oil guide groove 906 is provided on the front side plate 9011, and a fume collecting hood 500 is provided. Oil receiving port 908, when the fume hood 500 is fully extended out of the housing assembly 300, the oil receiving port 908 is located in the vertical direction of the lowest point of the drainage port 907, and an oil leakage hole is provided on the inner side of the fume hood 500. The oil passage is respectively connected with the drainage port 907, the oil receiving port 908 and the oil leakage hole. The oil receiving port 908 completely covers the drainage port 907, and drips from the drainage port 907 into the fume hood 500, passes through the oil leakage hole designed on the inner side of the fume hood 500, and finally enters the oil cup 902. After the oil baffle 901 is installed, the horizontal plane projection completely covers the horizontal plane projection of the volute assembly 200 and the driving horizontal plane projection, so as to avoid oil dripping inside the range hood 100.

[0102] Embodiment 2

[0103] This embodiment provides a smoke collecting device with another structural form, which is different from the smoke collecting device provided in the first embodiment in that:

[0104] See also Fig.19The linkage assembly 800 includes a rotating assembly 806 and a driven assembly 804; the rotating assembly 806 is arranged on the smoke hood 500, one end of the rotating assembly 806 is connected to the baffle 600, and the other end is connected to the driven assembly 804, and the end of the driven assembly 804 away from the rotating assembly 806 is connected to the shell assembly 300. When the driving assembly 700 drives the smoke hood 500 to extend out of the shell assembly 300, the driven assembly 804 drives the rotating assembly 806 to rotate so that the baffle 600 opens the smoke inlet, one end of the driven assembly 804 is connected to the rotating assembly 806, and the other end is connected to the shell assembly 300, and the driving assembly 700 drives the smoke hood 500 to extend out of the shell assembly 300. When the component 700 drives the smoke hood 500 to extend out of the shell component 300, it drives the driven component 804 to move downward. When the driving component 700 further drives the smoke hood 500 to descend, the driven component 804 drives the rotating component 806 to rotate, and then pulls the baffle 600 connected to the rotating component 806 to open. The smoke collecting device provided by the present invention, by setting a single power source, can simultaneously meet the multiple actions of moving the smoke hood 500 and driving the baffle 600 to open and close the smoke inlet, thereby alleviating the technical problems in the related art that a single power source can only meet a single action, and setting multiple power sources increases the cost and manufacturing difficulty.

[0105] See also Fig. 20 In an optional implementation manner of the present embodiment, it is more preferred that the smoke collecting device further includes a limiting assembly, and the limiting assembly includes a first limiting box 807; the first limiting box 807 is arranged on the outer shell assembly 300, and a second limiting groove 808 along the vertical direction is opened in the first limiting box 807, one end of the driven assembly 804 is slidably matched with the second limiting groove 808, and the first limiting box 807 limits the movement of the driven assembly 804.

[0106] See also Figure 20-Figure 22 In an optional implementation of this embodiment, preferably, the driven component 804 includes a guide member and a transmission member, one end of the guide member is slidably connected to the first limit box 807, and the other end is connected to the transmission member, and the end of the transmission member away from the guide member is connected to the rotating component 806. One end of the guide member slides vertically along the second limit groove 808, and the second limit groove 808 limits the movement of the guide member, and the guide member guides the transmission of the transmission member hinged to the guide member.

[0107] See also Fig.21 and Fig. 22In an optional implementation manner of the present embodiment, the guide member includes a first connecting rod 8041, and the transmission member includes a second connecting rod 8042 and a third connecting rod 8043; one end of the first connecting rod 8041 is slidably connected to the limit assembly through a first rotating shaft 8044, and the other end is connected to the second connecting rod 8042 through a second rotating shaft 8045; the end of the second connecting rod 8042 away from the second rotating shaft 8045 is connected to the third connecting rod 8043 through a third rotating shaft 8046, and the middle part of the second connecting rod 8042 is connected to the smoke hood 500 through a fourth rotating shaft 8047, and the second connecting rod 8042 rotates around the fourth rotating shaft 8047; the end of the third connecting rod 8043 away from the third connecting rod 8043 is connected to the rotating assembly 806 through a fifth rotating shaft 8048.

[0108] Continue reading Fig.21 In an optional implementation manner of the present embodiment, the rotating assembly 806 includes a rotating bracket 8061 and a bracket rotating shaft 8062; the rotating bracket 8061 is rotationally connected to the smoke hood 500 through the bracket rotating shaft 8062, one end of the rotating bracket 8061 is connected to the baffle 600, and the other end is connected to the driven assembly 804, specifically, one end of the rotating bracket 8061 is connected to the baffle 600, and the other end is connected to one end of the third connecting rod 8043, the bracket rotating shaft 8062 is fixed on the smoke hood 500, and the rotating bracket 8061 is rotationally connected to the smoke hood 500 through the bracket rotating shaft 8062, so that the rotating bracket 8061 rotates about the bracket rotating shaft 8062.

[0109] See also Fig.25 and Fig.26 In an optional implementation manner of the present embodiment, the smoke collecting device further comprises a second elastic member 810, and the second elastic member 810 enables the baffle 600 to have a movement tendency to close the smoke inlet. When the baffle 600 opens the smoke inlet, the second elastic member 810, the baffle 600 and the smoke collecting hood 500 form a smoke collecting cavity. There are two second elastic members 810, and the two second elastic members 810 are respectively arranged at the two ends of the smoke collecting hood 500, and the two second elastic members 810 are symmetrically arranged about the axis in the vertical direction of the baffle 600. The two ends of the two second elastic members 810 are respectively fixedly connected to the smoke collecting hood 500 and the baffle 600. When the smoke inlet is opened, the second elastic member 810, the baffle 600 and the smoke collecting hood 500 form a smoke collecting cavity, and the two second elastic members 810 are both in a stretched state, so that the baffle 600 has a movement tendency to close the smoke inlet.

[0110] See also Fig.21, the fourth rotating shaft 8047 and the bracket rotating shaft 8062 are fixed rotating shafts, which are respectively E and F in the figure, the first rotating shaft 8044, the second rotating shaft 8045, the third rotating shaft 8046 and the fifth rotating shaft 8048 are movable rotating shafts, which are respectively A, B, C and D in the figure. When the range hood 100 starts to work, the screw rod 701 runs, driving the screw rod movable block 703 to move vertically downward along the screw rod 701, thereby driving the screw rod connecting plate 702 fixed to the screw rod movable block 703 to move, thereby driving the screw rod connecting plate 702 connected to the screw rod connecting plate 702 to move. The smoke hood 500 connected to the connecting plate 702 also moves with the screw movable block 703, so that the smoke hood 500 starts to move linearly downward perpendicular to the horizontal plane from the completely hidden position, and moves a distance L1. Point A of the first connecting rod 8041 moves a distance L2 in the limit groove in the limit box. At this time, point A of the first connecting rod 8041 runs to the limit point at the lower end of the limit groove and is limited. At this stage, the driven component 804 moves simultaneously with the smoke hood 500 without relative displacement, and the driven component 804 does not produce a transmission effect. The driving component 700 further moves. When the smoke hood 500 is working, the smoke hood 500 drives the driven component 804 to continue to move downward. At this time, point A in the first connecting rod 8041 is limited by the limiting groove. At this time, the driven component 804 starts to drive, and the driven component 804 and the smoke hood 500 produce relative displacement. One end of the first connecting rod 8041 drives the second connecting rod 8042, and the second connecting rod 8042 rotates around the fixed axis F, wherein the movable axis point B moves from position b1 to b2, and the movable axis point C moves from position c1 to c2; the second connecting rod 8042 is connected to the third connecting rod 8043, and the movable axis C When the movable axis point D rotates, it drives the baffle 600 to rotate and open, and when the baffle 600 rotates and opens, it drives the second elastic members 810 on both sides to unfold. The whole opening process is completed, and the range hood 100 starts to work. In this process, a single power source completes two actions: first, the smoke hood 500 moves from a hidden position to a smoking area; second, the baffle 600 opens, driving the second elastic members 810 on both sides to unfold, forming a smoke collecting chamber.

[0111] Embodiment 3

[0112] This embodiment provides a smoke collecting device with another structural form, which is different from the smoke collecting devices provided in the above-mentioned embodiments 1 and 2 in that:

[0113] See also Fig. 27 and Fig.28, the driven component 804 includes a second roller 8049, a roller fixing frame 8050 and a flexible member 8051; the second roller 8049 is connected to the smoke hood 500 through the roller fixing frame 8050, and the relative position with the smoke hood 500 is fixed, and the second roller 8049 is rotated through the roller rotating shaft 8054, and the flexible member 8051 passes through the bottom of the second roller 8049, and one end of the flexible member 8051 is connected to the rotating component 806, and the other end is connected to the shell component 300. In this embodiment, the flexible member 8051 is a connecting line, which has strong rigidity when subjected to force, and can be wound when not subjected to force. In other embodiments, the flexible member 8051 can be a belt, a steel wire, etc., to ensure that the flexible member 8051 has sufficient rigidity and soft properties, and can stretch the rotating component 806 when subjected to force, and is easy to store when not subjected to force.

[0114] See also Fig.29 , Fig.30 , Fig.31 and Fig.32 In the preferred embodiment, further preferably, the driven component 804 also includes a limiting bracket 8052, the limiting bracket 8052 is connected to the second roller 8049, an annular gap is formed between the limiting bracket 8052 and the inner groove on the surface of the second roller 8049, the flexible member 8051 passes through the annular gap, the flexible member 8051 passes through the annular gap, a limiting boss 8053 is provided on the inner side of the limiting bracket 8052, and a space for accommodating the connecting line and limiting the connecting line is formed between the limiting boss 8053 and the groove of the second roller 8049, and the limiting boss 8053 ensures that the connecting line is in any state in the second In the groove on the surface of the roller 8049, the cross section of the limiting bracket 8052 is U-shaped. In order to ensure the normal operation of the connecting line when the force is applied, the U-shaped limiting bracket 8052 covers the lower part of the axis of the second roller 8049, that is, directly below the second roller 8049 when viewed from the front. The covering angle of the limiting bracket 8052 is a, 180°>a>90°, and a=155° is preferred in this embodiment. The limiting bracket 8052 and the second roller 8049 are provided with a plurality of matching mounting through holes, and the limiting bracket 8052 and the second roller 8049 are bolted together through the plurality of mounting through holes. By setting the limiting bracket 8052, the annular gap formed by the limiting boss 8053 on the inner side of the limiting bracket 8052 and the surface of the second roller 8049 can ensure that the position of the connecting line always passes under the second roller 8049, thereby improving the reliability of the movement between the connecting line and the linkage assembly 800.

[0115] See also Fig.33In a further preferred implementation manner of the present embodiment, a second limit box 809 is further provided inside the shell assembly 300, and the second limit box 809 is fixedly mounted on the shell rear plate 304, and one end of the connecting line away from the rotating assembly 806 is connected to the second limit box 809, and the second limit box 809 fixes one end of the connecting line to limit the length of the tightened connecting line, thereby limiting the running distance of the smoke hood 500.

[0116] See also Fig.34 The driving assembly 700 drives the smoke hood 500 to operate. The operation of the smoke hood 500 is divided into two stages. In the first stage, the smoke hood 500 starts to move vertically and horizontally downward from the inside of the shell assembly 300, that is, the completely hidden position, and the operating distance is L1. At this time, the width of the baffle 600 has been completely exposed from the inside of the shell assembly 300, and the second roller 8049 rotates through the second roller 8049 rotation axis. The connecting line passing through the lower side of the second roller 8049 is tightened near the side of the rotating bracket 8061; in the second stage, the screw rod 701 moves further downward, and the connecting line begins to be stressed, pulling and connecting The rotating bracket 8061 fixed by the wire rotates about the bracket rotating shaft 8062, rotating from the initial position point A to point B, thereby driving the baffle 600 connected to the rotating bracket 8061 to start rotating, so that the second elastic member 810 set between the baffle 600 and the smoke hood 500 is unfolded, until the connecting wire is completely tightened, and the second limit box 809 limits the connecting wire so that the smoke hood 500 cannot continue to move downward. The running distance of the smoke hood 500 is L2. At this time, the smoke inlet is fully opened, and the baffle 600 and the smoke inlet and the elastic materials on both sides form a certain volume of smoke collection cavity, and the volute system starts to work. When the range hood 100 is turned off, the driving component 700 drives the smoke hood 500 to retract, and at the same time, the second elastic member 810 rebounds and pulls back the baffle 600, so that the smoke inlet is closed, thereby driving the rotating bracket 8061 connected to the baffle 600 to run from point B to point A, and the connecting wire is relaxed until the smoke hood 500 is completely retracted into the shell component 300.

[0117] Embodiment 4

[0118] This embodiment provides a smoke collecting device with another structural form, which is different from the smoke collecting device provided in the third embodiment in that:

[0119] See also Fig.35 The driven component 804 includes a connecting rod 8055. In this embodiment, the connecting rod 8055 is connected to the smoke hood 500 through a fixing member, and the flexible member 8051 passes under the connecting rod 8055. Both ends of the flexible member 8051 are respectively connected to the rotating component 806 and the housing component 300.

[0120] In a further preferred implementation manner of the present embodiment, a first limiting groove 8056 is provided on the connecting rod 8055, and the flexible member 8051 moves in the first limiting groove 8056. The first limiting groove 8056 is arranged along the circumference of the connecting rod 8055, and the extension direction of the first limiting groove 8056 coincides with the extension direction of the flexible member 8051. By setting the first limiting groove 8056, the flexible member 8051 can be limited, thereby improving the reliability and stability of the relative movement between the flexible member 8051 and the linkage assembly 800.

[0121] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A smoke collecting device, characterized in that: include: Housing assembly (300); A smoke collecting hood (500), wherein a smoke inlet is provided on one side of the smoke collecting hood (500); a baffle (600), the baffle (600) being movably connected to the smoke collecting hood (500) and used for opening or closing the smoke inlet; A driving assembly (700), the driving assembly (700) being in driving connection with the smoke collecting hood (500) and used for driving the smoke collecting hood (500) to extend out or be retracted into the housing assembly (300); A linkage component (800), wherein the linkage component (800) is installed on the housing component (300), and when the smoke collecting hood (500) extends out of the housing component (300), the linkage component (800) drives the baffle (600) to open the smoke inlet; The linkage assembly (800) includes a rotating assembly (806) and a driven assembly (804); The baffle is mounted on the rotating component, and the rotating component (806) is arranged on the smoke collecting hood (500). One end of the rotating component (806) is connected to the baffle (600), and the other end is connected to the driven component (804). The end of the driven component (804) away from the rotating component (806) is connected to the outer shell component (300). When the driving component (700) drives the smoke collecting hood (500) to extend out of the outer shell component (300), the driven component (804) drives the rotating component (806) to rotate, so that the baffle (600) opens the smoke inlet. The smoke collecting device further comprises a limiting assembly, wherein the limiting assembly comprises a first limiting box (807); The first limiting box (807) is arranged on the housing component (300), and a second limiting groove (808) extending in the vertical direction is provided in the first limiting box (807), and one end of the driven component (804) is slidably matched with the second limiting groove (808).

2. The smoke collecting device according to claim 1, characterized in that: The linkage assembly (800) comprises an elastic module (801), the baffle (600) is hinged to the smoke collecting hood (500) via the elastic module (801), and the elastic module (801) enables the baffle (600) to have a movement tendency to open the smoke inlet.

3. The smoke collecting device according to claim 2, characterized in that: The elastic module (801) comprises a first fixed plate (8011), a rotating shaft (8012), a first elastic member and a second fixed plate (8014); The first fixing plate (8011) and the second fixing plate (8014) are sleeved on the rotating shaft (8012) and are rotatably connected to the rotating shaft (8012); the first elastic member is sleeved on the rotating shaft (8012); the first fixing plate (8011) is connected to the smoke hood (500); and the second fixing plate (8014) is connected to the baffle (600).

4. The smoke collecting device according to claim 3, characterized in that: The opening angle range of the first fixing plate (8011) and the second fixing plate (8014) is 60°-150°.

5. The smoke collecting device according to claim 2, characterized in that: The linkage assembly (800) further comprises a first roller (802), wherein the first roller (802) is arranged on the housing assembly (300) and is placed on a side of the baffle (600) away from the smoke inlet, and a rolling groove (8021) is provided on the side of the baffle (600) away from the smoke inlet, and the first roller (802) is in rolling cooperation with the rolling groove (8021).

6. The smoke collecting device according to claim 5, characterized in that: The smoke collecting device also includes a sealing component (803), and the sealing component (803) includes a flange (8031), a support platform (8032) and a sealing gasket (8033). The support platform (8032) is arranged on the outer shell component (300) and placed on the upper part of the first roller (802). The flange (8031) is located above the support platform (8032) and is installed on the smoke collecting hood (500). The sealing gasket (8033) is arranged outside the support platform (8032). When the smoke collecting hood (500) is fully extended from the outer shell component (300), the flange (8031) contacts the sealing gasket (8033) to seal the gap between the first roller (802) and the smoke collecting hood (500).

7. The smoke collecting device according to claim 1, characterized in that: The driven component (804) includes a guide member and a transmission member, one end of the guide member is slidably connected to the first limit box (807), and the other end is connected to the transmission member, and the end of the transmission member away from the guide member is connected to the rotating component (806).

8. The smoke collecting device according to claim 7, characterized in that: The guide member includes a first connecting rod (8041), and the transmission member includes a second connecting rod (8042) and a third connecting rod (8043); One end of the first connecting rod (8041) is slidably connected to the limiting assembly via a first rotating shaft (8044), and the other end is connected to the second connecting rod (8042) via a second rotating shaft (8045); One end of the second connecting rod (8042) away from the second rotating axis (8045) is connected to the third connecting rod (8043) via a third rotating axis (8046), the middle part of the second connecting rod (8042) is connected to the smoke collecting hood (500) via a fourth rotating axis (8047), and the second connecting rod (8042) rotates around the fourth rotating axis (8047); One end of the third link (8043) away from the second link (8042) is connected to the rotating assembly (806) via a fifth rotating shaft (8048).

9. The smoke collecting device according to claim 1, characterized in that: The driven component (804) comprises a second roller (8049), a roller fixing frame (8050) and a flexible member (8051); The second roller (8049) is connected to the smoke hood (500) via the roller fixing frame (8050), the flexible member (8051) passes through the bottom of the second roller (8049), and one end of the flexible member (8051) is connected to the rotating component (806), and the other end is connected to the outer shell component (300).

10. The smoke collecting device according to claim 9, characterized in that: The driven component (804) further comprises a limiting bracket (8052), wherein the limiting bracket (8052) is connected to the second roller (8049), an annular gap is formed between the limiting bracket (8052) and the inner groove of the surface of the second roller (8049), and the flexible member (8051) passes through the annular gap.

11. The smoke collecting device according to claim 10, characterized in that: The cross section of the limiting bracket (8052) is U-shaped, and a limiting boss (8053) is provided on the inner side of the limiting bracket (8052). A space is formed between the limiting boss (8053) and the groove of the second roller (8049) to accommodate the flexible member (8051) and limit the position of the flexible member (8051).

12. The smoke collecting device according to claim 10, characterized in that: The limiting bracket (8052) is arranged below the axis of the second roller (8049), and the coverage angle range of the limiting bracket (8052) is 90°-180°.

13. The smoke collecting device according to claim 1, characterized in that: The rotating assembly (806) includes a rotating bracket (8061) and a bracket rotating shaft (8062); The rotating bracket (8061) is rotatably connected to the smoke collecting hood (500) via the bracket rotating shaft (8062); one end of the rotating bracket (8061) is connected to the baffle (600), and the other end is connected to the driven component (804).

14. The smoke collecting device according to any one of claims 1 to 13, characterized in that: The smoke collecting device further comprises a second elastic member (810), wherein the second elastic member (810) enables the baffle (600) to have a movement tendency to close the smoke inlet, and when the baffle (600) opens the smoke inlet, the second elastic member (810), the baffle (600) and the smoke collecting hood (500) form a smoke collecting cavity.

15. The smoke collecting device according to claim 1, characterized in that: The driving assembly (700) comprises a screw (701), a screw connecting plate (702), a screw movable block (703) and a screw motor (704); One side of the screw connecting plate (702) is connected to the smoke hood (500), and the other side is connected to the screw movable block (703); the screw movable block (703) is arranged on the screw (701) and moves with the screw (701); one end of the screw (701) is connected to the driving end of the screw motor (704).

16. The smoke collecting device according to claim 15, characterized in that: A sealing member (705) is provided on one side of the screw rod (701) close to the screw rod connecting plate (702), and a slot (706) is provided on the sealing member (705) for accommodating the screw rod movable block (703) to slide relative to the screw rod (701).

17. The smoke collecting device according to claim 15, characterized in that: The driving assembly (700) further comprises a slide rail (707) and a sliding block, wherein the slide rail (707) is arranged on the housing assembly (300), and the smoke collecting hood (500) is slidably connected to the housing assembly (300) via the slide rail (707) and the sliding block.

18. The smoke collecting device according to any one of claims 1 to 13 and 15 to 17, characterized in that: The smoke collecting device further comprises an oil circuit structure, wherein the oil circuit structure comprises an oil baffle plate (901), an oil circuit channel and an oil cup (902), wherein the oil baffle plate (901) is connected to the housing assembly (300), and the oil cup (902) is arranged at the lower end of the smoke collecting hood (500), and the oil baffle plate (901), the oil circuit channel and the oil cup (902) are arranged in sequence and in communication with each other.

19. The smoke collecting device according to claim 18, characterized in that: The oil baffle plate (901) comprises a front side plate (9011) and a horizontal plate (9012), wherein the horizontal plate (9012) is arranged in the housing assembly (300), an oil plate opening (903) is provided on one end of the front side plate (9011) close to the horizontal plate (9012), a first oil baffle edge (904) is provided on the periphery of the oil baffle plate (901), a second oil baffle edge (905) is provided on the edge of the oil plate opening (903), and the first oil baffle edge (904) and the second oil baffle edge (905) are connected to the horizontal plate (9011). 12) to form an oil guide groove (906), the front side plate (9011) is provided with a drainage port (907) connected to the oil guide groove (906), the smoke hood (500) is provided with an oil receiving port (908), when the smoke hood (500) is fully extended from the shell assembly (300), the oil receiving port (908) is located in the vertical direction of the lowest point of the drainage port (907), the inner side of the smoke hood (500) is provided with an oil leakage hole, and the oil passage is respectively connected to the drainage port (907), the oil receiving port (908) and the oil leakage hole.

20. The smoke collecting device according to claim 19, characterized in that: The angle between the front side plate (9011) and the horizontal plate (9012) is 8°-45°.

21. A range hood (100), characterized in that: It comprises a volute assembly (200) and the smoke collecting device according to any one of claims 1 to 20, wherein the volute assembly (200) is arranged inside the outer shell assembly (300).

22. The range hood (100) according to claim 21, characterized in that: The range hood (100) further comprises a sensor module (400), wherein the sensor module (400) is arranged on the housing component (300), wherein the sensor module (400) comprises a sensor (401) and a control board (402), and wherein the sensor (401) and the control board (402) are electrically connected; The sensor (401) is an infrared sensor or a sound sensor.

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