Smoke collecting device and range hood

Abstract

The application provides a smoke collecting device and a range hood, and relates to the technical field of range hoods. The smoke collecting device comprises a shell assembly, a smoke collecting cover, a baffle, a driving assembly and a linkage assembly. One side of the smoke collecting cover is provided with a smoke inlet. The baffle is movably connected with the smoke collecting cover and is used for opening or closing the smoke inlet. The driving assembly is in transmission connection with the smoke collecting cover and is used for driving the smoke collecting cover to extend out of or be stored in the shell assembly. The linkage assembly is installed on the shell assembly. During the process that the smoke collecting cover extends out of the shell assembly, the linkage assembly drives the baffle to move to an opening position of the smoke inlet. The application alleviates the technical problems that a single power source can only meet a single action in the related art, and that setting multiple power sources increases the cost and the manufacturing difficulty.

Description

[0001] This application is a divisional application of the patent application with application number 2021109326957, titled "Fume collecting device and range hood", and filed on August 13, 2021. TECHNICAL FIELD

[0002] The present application relates to the technical field of kitchen appliances, and in particular to a fume collecting device and a range hood. BACKGROUND

[0003] A range hood can quickly draw away the waste generated by gas stove combustion and the oil fume harmful to human body generated in the cooking process of users and discharge it outdoors. The surface of the smoke inlet of a household range hood is sticky with oil, which affects the appearance. Therefore, various electric flap type hoods exist on the market, which hide the smoke inlet and open the flap by driving a rotating mechanism through an electric push rod or move the smoke inlet originally hidden in the body straight out. Such a range hood can only satisfy one action with one power source, resulting in poor smoke suction effect. In order to ensure the opening of multiple actions, multiple power sources are set, which increases the cost and the difficulty of production. SUMMARY

[0004] The present application aims to provide a fume collecting device and a range hood to alleviate the technical problems of single power source only satisfying single action and multiple power sources increasing the cost and the difficulty of production in the related art.

[0005] In a first aspect, the present application provides a fume collecting device, comprising:

[0006] a housing assembly;

[0007] a fume collecting cover, which is slidingly connected with the housing assembly in the vertical direction, and one side of the fume collecting cover is provided with a smoke inlet;

[0008] a baffle, which is movably connected with the fume collecting cover and used for opening or closing the smoke inlet;

[0009] a driving assembly, which is drivingly connected with the fume collecting cover and used for driving the fume collecting cover to extend out of or be accommodated in the housing assembly;

[0010] a linkage assembly, which is installed on the housing assembly, and the linkage assembly drives the baffle to open the smoke inlet during the process that the fume collecting cover extends out of the housing assembly;

[0011] The linkage assembly comprises a rotating assembly and a driven assembly.

[0012] The baffle is mounted on the rotating assembly which is arranged on the fume hood, one end of the rotating assembly is connected with the baffle, and the other end is connected with the driven assembly, one end of the driven assembly away from the rotating assembly is connected with the shell assembly, when the driving assembly drives the fume hood to extend out of the shell assembly, the driven assembly drives the rotating assembly to rotate, so that the baffle opens the smoke inlet.

[0013] The driven assembly comprises a second roller, a roller fixing frame and a flexible member.

[0014] The second roller is connected with the fume hood through the roller fixing frame, the flexible member passes below the second roller, and one end of the flexible member is connected with the rotating assembly, and the other end is connected with the shell assembly.

[0015] In an optional embodiment, the driven assembly further comprises a limiting support, the limiting support is connected with the second roller, an annular gap is formed between the limiting support and the groove on the surface of the second roller, and the flexible member passes through the annular gap.

[0016] In an optional embodiment, the limiting support has a U-shaped cross section, a limiting boss is arranged on the inner side of the limiting support, and a space capable of accommodating and limiting the flexible member is formed between the limiting boss and the groove of the second roller.

[0017] In an optional embodiment, the limiting support is arranged below the axis of the second roller, and the covering angle range of the limiting support is 90°-180°.

[0018] In an optional embodiment, the rotating assembly comprises a rotating support and a support rotating shaft.

[0019] The rotating support is rotatably connected with the fume hood through the support rotating shaft, one end of the rotating support is connected with the baffle, and the other end is connected with the driven assembly.

[0020] In an optional embodiment, the fume collecting device further comprises a second elastic member, the second elastic member enables the baffle to have a movement tendency of closing the smoke inlet, and in the state that the baffle opens the smoke inlet, the second elastic member is surrounded with the baffle and the fume hood to form a smoke collecting cavity.

[0021] In an optional embodiment, the fume collecting device further comprises an oil path structure, the oil path structure comprises an oil blocking plate, an oil path channel and an oil cup, the oil blocking plate is connected with the shell assembly, the oil cup is arranged at the lower end of the fume hood, and the oil blocking plate, the oil path channel and the oil cup are sequentially and communicatively arranged.

[0022] In an optional embodiment, the oil baffle comprises a front side plate and a horizontal plate, the horizontal plate is arranged in the housing assembly, an oil baffle opening is arranged on one end of the front side plate close to the horizontal plate, a first oil baffle edge is arranged on the outer periphery of the oil baffle, a second oil baffle edge is arranged on the edge of the oil baffle opening, the first oil baffle edge and the second oil baffle edge form an oil guide groove with the horizontal plate, a drainage port is arranged on the front side plate and communicates with the oil guide groove, an oil receiving port is arranged on the smoke collecting hood, when the smoke collecting hood is fully extended out of the housing assembly, the oil receiving port is located in the vertical direction of the lowest point of the drainage port, an oil leakage hole is arranged on the inner side of the smoke collecting hood, and the oil passage respectively communicates with the drainage port, the oil receiving port and the oil leakage hole.

[0023] In a second aspect, the present application provides an oil fume extractor, comprising a volute assembly and the smoke collecting device according to any one of the preceding embodiments, and the volute assembly is arranged in the housing assembly.

[0024] By adopting the technical scheme, the present application can achieve the following beneficial effects:

[0025] The present application drives the smoke collecting hood to extend out of the housing assembly by the driving assembly and the linkage assembly, and the linkage assembly can drive the baffle connected thereto to open the smoke inlet, and the single power source can meet the multiple actions of moving the smoke collecting hood and driving the baffle to open and close the smoke inlet, thereby solving the technical problems that the single power source can only meet a single action in the related art, and the multiple power sources increase the cost and the manufacturing difficulty. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical scheme in the specific embodiments or the related art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the related art description. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without any creative labor.

[0027] Figure 1 The oil fume extractor provided by the first embodiment of the present application cooperates with the cabinet;

[0028] Figure 2 The whole machine hidden state schematic diagram of the oil fume extractor provided by the first embodiment of the present application;

[0029] Figure 3 The whole machine extended state schematic diagram of the oil fume extractor provided by the first embodiment of the present application;

[0030] Figure 4 The explosion schematic diagram of the oil fume extractor provided by the first embodiment of the present application;

[0031] Figure 5 This is a schematic diagram of the operation of a range hood provided in Embodiment 1 of the present invention. Figure 1 ;

[0032] Figure 6 This is a schematic diagram of the operation of a range hood provided in Embodiment 1 of the present invention. Figure 2 ;

[0033] Figure 7 This is a schematic diagram of the smoke collection device provided in Embodiment 1 of the present invention. Figure 1 ;

[0034] Figure 8 This is a schematic diagram of the smoke collection device provided in Embodiment 1 of the present invention. Figure 2 ;

[0035] Figure 9 This is a schematic diagram of the smoke collection device provided in Embodiment 1 of the present invention. Figure 3 ;

[0036] Figure 10 This is a schematic diagram of the torsion spring module of the smoke collection device provided in Embodiment 1 of the present invention in a compressed state;

[0037] Figure 11 This is a schematic diagram of the torsion spring module of the smoke collection device provided in Embodiment 1 of the present invention in its natural state;

[0038] Figure 12 This is a schematic diagram of the grease path in the smoke collection device provided in Embodiment 1 of the present invention;

[0039] Figure 13 This is a schematic diagram of the oil inlet of the smoke collection device provided in Embodiment 1 of the present invention;

[0040] Figure 14 This is a schematic diagram of the oil baffle plate of the smoke collection device provided in Embodiment 1 of the present invention;

[0041] Figure 15 This is a side view of the oil baffle plate of the smoke collection device provided in Embodiment 1 of the present invention;

[0042] Figure 16 This is a schematic diagram of the air inlet gap of the range hood provided in Embodiment 1 of the present invention;

[0043] Figure 17 This is a schematic diagram of the sealing assembly of the smoke collection device provided in Embodiment 1 of the present invention;

[0044] Figure 18 For the present invention Figure 17 Enlarged view of point A in the middle;

[0045] Figure 19 This is a schematic diagram of the structure of the range hood provided in Embodiment 2 of the present invention.Figure 1 ;

[0046] Figure 20 Partial structure diagram of the smoke collecting device provided in Embodiment Two of the present application;

[0047] Figure 21 Structure diagram of the multi-link assembly of the smoke collecting device provided in Embodiment Two of the present application;

[0048] Figure 22 Structure diagram of the limiting assembly of the smoke collecting device provided in Embodiment Two of the present application;

[0049] Figure 23 Structure diagram of the driving assembly of the smoke collecting device provided in Embodiment Two of the present application;

[0050] Figure 24 Structure diagram of the sensing module of the smoke collecting device provided in Embodiment Two of the present application;

[0051] Figure 25 Working state diagram of the extractor hood of the smoke collecting device provided in Embodiment Two of the present application Figure 1 ;

[0052] Figure 26 Working state diagram of the extractor hood of the smoke collecting device provided in Embodiment Two of the present application Figure 2 ;

[0053] Figure 27 Structure diagram of the extractor hood provided in Embodiment Three of the present application;

[0054] Figure 28 Partial structure diagram of the smoke collecting device provided in Embodiment Three of the present application;

[0055] Figure 29 Structure diagram of the linkage assembly of the smoke collecting device provided in Embodiment Three of the present application;

[0056] Figure 30 Sectional view of the linkage assembly of the smoke collecting device provided in Embodiment Three of the present application;

[0057] Figure 31 Structure diagram of the limiting support of the smoke collecting device provided in Embodiment Three of the present application;

[0058] Figure 32 Front view of the limiting support of the smoke collecting device provided in Embodiment Three of the present application;

[0059] Figure 33 Working state diagram of the extractor hood provided in Embodiment Three of the present application Figure 1 ;

[0060] Figure 34The working state diagram of the range hood provided for the third embodiment of the present application Figure 2 ;

[0061] Figure 35 The structure diagram of the linkage assembly of the smoke collecting device provided for the fourth embodiment of the present application.

[0062] Icon: 100-range hood; 200-volute assembly; 300-outer shell assembly; 301-outer shell top plate; 302-outer shell surrounding plate; 303-outer shell bottom plate; 304-outer shell rear plate; 400-sensing module; 401-sensor; 402-control board; 500-smoke collecting cover; 600-baffle; 700-driving assembly; 701-screw rod; 702-screw rod connecting plate; 703-screw rod movable block; 704-screw rod motor; 705-sealing element; 707-sliding rail; 800-linkage assembly; 801-elastic module; 8011-first fixed plate; 8012-rotation shaft; 8013-torsional spring; 8014-second fixed plate; 802-first roller; 8021-rolling groove; 803-sealing assembly; 8031-flange edge; 8032-supporting table; 8033-sealing gasket; 3034-air inlet gap; 804-driven assembly; 8041-first connecting rod; 8042-second connecting rod; 8043-third connecting rod; 8044-first rotation shaft; 8045-second rotation shaft; 8046-third rotation shaft; 8047-fourth rotation shaft; 8048-fifth rotation shaft; 8049-second roller; 8050-roller fixing frame; 8051-flexible element; 8052-limiting support; 8053-limiting boss; 8054-roller rotation shaft; 8055-connecting rod; 8056-first limiting groove; 806-rotation assembly; 8061-rotation support; 8062-support rotation shaft; 807-first limiting box; 808-second limiting groove; 809-second limiting box; 810-second elastic element; 901-oil baffle; 9011-front side plate; 9012-horizontal plate; 902-oil cup; 903-oil baffle opening; 904-first oil baffle edge; 905-second oil baffle edge; 906-oil guiding groove; 907-draining opening; 908-oil receiving opening. DETAILED DESCRIPTION

[0063] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0064] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0065] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0066] Embodiment one

[0067] The present embodiment provides an oil fume extractor 100, referring to Figure 4 The oil fume extractor 100 includes a volute assembly 200 and a smoke collecting device, the volute assembly 200 is arranged in the housing assembly 300, when the driving assembly 700 drives the smoke collecting cover 500 to extend out of the housing assembly 300, the linkage assembly 800 can drive the baffle 600 connected thereto to open the smoke inlet, by arranging a single power source, the multiple actions of moving the smoke collecting cover 500 and driving the baffle 600 to open and close the smoke inlet are simultaneously satisfied, thereby relieving the technical problems that the single power source in the related art can only satisfy a single action, and arranging multiple power sources increases the cost and manufacturing difficulty.

[0068] Specifically, referring to Figure 1 , Figure 2 and Figure 4 , when the oil fume extractor 100 is closed, the smoke collecting device is placed in the housing assembly 300 as a whole, the whole machine is hung on the wall surface through a hook, and at the same time, the whole machine is matched with the cabinet and is completely hidden in the cabinet. The purpose of this hidden design is to better cooperate with the cabinet and change the problem that the traditional oil fume extractor 100 exceeds the depth of the cabinet, so that the kitchen is more delicate, the oil fume extractor 100 is integrated with the cabinet and is beautiful, the cleanliness of the kitchen is ensured, and the user can clean the wall surface conveniently; when the oil fume extractor 100 is opened, the driving assembly 700 drives the smoke collecting cover 500 to move downward along the vertical direction, so that the smoke collecting cover 500 is lowered to work for oil fume extraction, the baffle 600 is arranged above the smoke inlet, the smoke gathering effect is increased, the smoke inlet is partially shielded, and the overall smoke extraction effect of the oil fume extractor 100 is improved.

[0069] Referring to Figure 3 and Figure 24 In an optional embodiment of the present embodiment, the range hood 100 further comprises a sensing module 400, the sensing module 400 is arranged on the shell assembly 300, the sensing module 400 comprises a sensor 401 and a control panel 402, and the sensor 401 and the control panel 402 are electrically connected; the sensor 401 is an infrared sensor or a sound sensor. The range hood 100 is divided into two states as a whole, which are a hidden state and a working state. In the hidden state, the smoke collecting hood 500 is hidden inside the shell assembly 300, the shell assembly 300 is hidden in the cabinet, and the lower surface of the whole machine can be seen when viewed from above; the lower surface of the whole machine is provided with the sensing module 400, when the range hood 100 is working, the user moves the hand in front of the lower surface of the whole machine, the sensor 401 senses the signal, the signal is transmitted to the control panel 402, the control panel 402 issues an instruction, and the driving assembly 700 starts to work, running the steps of lowering the smoke collecting hood 500 and opening the baffle 600, when the sound sensor is used, the user issues an instruction through sound.

[0070] The smoke collecting device provided by the present embodiment comprises: Figure 4 The smoke collecting device comprises:

[0071] The shell assembly 300, the smoke collecting hood 500, the baffle 600, the driving assembly 700 and the linkage assembly 800, the smoke collecting hood 500 is slidingly connected with the shell assembly 300 along the vertical direction, and one side of the smoke collecting hood 500 is provided with a smoke inlet, the baffle 600 is movably connected with the smoke collecting hood 500, for opening or closing the smoke inlet, the driving assembly 700 is drivingly connected with the smoke collecting hood 500, for driving the smoke collecting hood 500 to extend out of or be accommodated in the shell assembly 300, and the linkage assembly 800 is installed on the shell assembly 300, during the process that the smoke collecting hood 500 extends out of the shell assembly 300, the linkage assembly 800 drives the baffle 600 to move to the opening position of the smoke inlet.

[0072] Specifically, the shell assembly 300 comprises a shell top plate 301, a shell surrounding plate 302, a shell bottom plate 303 and a shell back plate 304, the shell surrounding plate 302, the shell top plate 301 and the shell bottom plate 303 and the shell back plate 304 jointly enclose a rectangular cabinet, the shell back plate 304 is fixed on the wall surface, the volute assembly 200 is arranged on the inner wall of the shell surrounding plate 302, and the smoke inlet cavity assembly is accommodated inside the shell assembly 300.

[0073] Referring to Figure 5 and Figure 6In an optional implementation of the embodiment, the linkage assembly 800 comprises elastic modules 801, the baffle 600 is hinged to the smoke hood 500 through the elastic modules 801, the elastic modules 801 make the baffle 600 have a movement tendency of opening the smoke inlet, the number of the elastic modules 801 is two, the two elastic modules 801 are arranged at two ends of the smoke hood 500 and the baffle 600 respectively, and the two elastic modules 801 are symmetrically arranged about an axis in the vertical direction of the smoke hood 500 and the baffle 600.

[0074] Referring to Figure 10 and Figure 11 , the elastic module 801 comprises a first fixed plate 8011, a rotating shaft 8012, a first elastic member and a second fixed plate 8014; in the embodiment, the first elastic member is a torsion spring 8013, the first fixed plate 8011 and the second fixed plate 8014 are sleeved outside the rotating shaft 8012 and are rotationally 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 through a fixed bolt, the second fixed plate 8014 is connected to the baffle 600 through a fixed bolt or a fixed screw, when the baffle 600 needs to be disassembled and cleaned, only the fixed screw between the elastic module 801 and the smoke hood 500 or the baffle 600 needs to be disassembled, without affecting other structures, the baffle 600 can be cleaned and replaced, so that the maintenance and disassembly are convenient, and the user experience is improved.

[0075] The opening and closing angle of the baffle 600 is related to the elastic force of the elastic module 801, when the opening angle of the baffle 600 is kept at the minimum angle, that is, in the compressed state, the baffle 600 is subjected to an external force so that the elastic force of the elastic module 801 reaches the maximum state; when the external force acting on the baffle 600 is removed, the elastic force of the elastic module 801 is the minimum state, that is, in the natural state, at this time, the opening angle of the baffle 600 reaches the maximum, the smoke area is lifted, and the smoking effect is better; in the process from when the baffle 600 is subjected to an external force so that the elastic force of the elastic module 801 reaches the maximum state to when the external force is removed so that the elastic force of the elastic module 801 is the minimum state, the opening angle of the baffle 600 is transitioned from the minimum angle to the maximum angle, specifically, in the normal uncompressed state, the opening angle range of the first fixed plate 8011 and the second fixed plate 8014 is 60°-150°, and in the embodiment, the opening angle of the two is 120°.

[0076] Referring to Figure 7 , Figure 8 , Figure 9In an optional embodiment of the present embodiment, the linkage assembly 800 further comprises a first roller 802 disposed on the housing assembly 300 and located on the side of the baffle 600 away from the smoke inlet, the side of the baffle 600 away from the smoke inlet is provided with a rolling groove 8021, the first roller 802 is in rolling cooperation with the rolling groove 8021, the number of the first roller 802 and the rolling groove 8021 is two respectively, the two first rollers 802 are disposed on the housing bottom plate 303 and are symmetrically disposed about the axis in the vertical direction of the housing bottom plate 303, the two rolling grooves 8021 are provided on the baffle 600 and are symmetrically disposed about the axis in the vertical direction of the baffle 600, the two first rollers are in one-to-one cooperation with the two rolling grooves, one side of the elastic module 801 is connected with the rolling groove 8021 to avoid the direct contact of the first roller 802 with the baffle 600. When the range hood starts to work, the driving assembly 700 drives the smoke collecting hood 500 to move, the first roller 802 slides relative to the baffle 600, the baffle 600 is acted on by the elastic module 801 to make the baffle 600 start to rotate about the rotating shaft 8012, for further reference Figure 5 and Figure 6 When the smoke collecting hood 500 moves a distance L1, the first roller 802 completely passes through the surface of the baffle 600, at this time the baffle 600 is completely opened, the elastic module 801 supports the baffle 600 to form a certain angle with the surface of the smoke inlet cavity, the opening of the baffle 600 exposes the smoke inlet; when the range hood is turned off, the smoke collecting hood 500 drives the baffle 600 with an opening angle to move upward, the top end of the baffle 600 starts to contact the first roller 802, the smoke inlet cavity continues to move upward, the first roller 802 rolls on the surface of the baffle 600, the elastic module 801 is squeezed, the baffle 600 starts to rotate, the opening angle gradually decreases, and when the operation is completed, the baffle 600 is closed and the smoke inlet cavity assembly is hidden. Through the first roller 802 and the elastic module 801, the baffle 600 automatically opens or closes the smoke inlet during the lifting of the smoke collecting hood 500, without the need to separately set a driving member or a connecting rod transmission, the cost is saved, and the overall structure is reliable in upward and downward movement and is not easy to be damaged.

[0077] When the range hood 100 is running, a gap is formed between the first roller 802 and the front side of the smoke collecting hood 500, part of the oil fume enters the inside of the housing assembly 300 through the gap during the normal operation of the range hood, part of the oil fume condenses to form grease on the surface of the baffle 600, the surface of the rolling groove 8021 and the surface of the first roller 802, and the grease on the surface of the baffle 600 can cause oil dripping, and the grease on the surface of the rolling groove 8021 and the surface of the first roller 802 can cause the friction to increase when rolling, causing the first roller 802 to roll with difficulty.

[0078] In view of this, referring to Figure 16 , Figure 17 , Figure 18 and Figure 22In an optional embodiment of the present embodiment, the smoke collecting device further comprises a sealing assembly 803, which comprises a flange 8031, a support platform 8032 and a sealing gasket 8033. The support platform 8032 is arranged on the housing assembly 300 and located above the first roller 802. The flange 8031 is located above the support platform 8032 and fixed to the smoke collecting hood 500. The sealing gasket 8033 is arranged outside the support platform 8032. When the range hood 100 starts to work, the driving assembly 700 drives the smoke collecting hood 500 to start moving. When the smoke collecting hood 500 is completely extended out of the housing assembly 300, the flange 8031 contacts the sealing gasket 8033 to seal the air inlet gap 3034 formed between the first roller 802 and the smoke collecting hood 500, so that the cooking oil fume cannot pass through this area, solving the above-mentioned oil path problem.

[0079] Referring to Figure 20 In an optional embodiment of the present embodiment, the driving assembly 700 comprises a lead screw 701, a lead screw connecting plate 702, a lead screw movable block 703 and a lead screw motor 704. One side of the lead screw connecting plate 702 is connected with the smoke collecting hood 500, and the other side is connected with the lead screw movable block 703. The lead screw movable block 703 is arranged on the lead screw 701 and moves with the lead screw 701. One end of the lead screw 701 is connected with the driving end of the lead screw motor 704. The rotation of the lead screw 701 drives the lead screw movable block 703 to move along the lead screw 701, and in turn drives the lead screw connecting plate 702 fixed with the lead screw movable block 703 to move, so as to drive the smoke collecting hood 500 connected with the lead screw connecting plate 702 to also move with the lead screw movable block 703 in a reciprocating linear motion. The driving assembly 700 drives the smoke collecting hood 500 to extend out of or be accommodated in the housing assembly 300. The coordinated movement of the lead screw 701 and the lead screw movable block 703 can realize linear fixed-point and positioning control, so that the overall structure moves reliably up and down, prolonging the service life.

[0080] It should be noted that the power source of the driving assembly 700 is not limited to the above structure, but can also be other power sources such as an electric push rod. The present application does not limit the specific structure of the driving assembly 700.

[0081] Referring to Figure 23 In an optional embodiment of the present embodiment, the side of the lead screw 701 close to the lead screw connecting plate 702 is provided with a sealing element 705, which is provided with a slot capable of accommodating the sliding of the lead screw movable block 703 relative to the lead screw 701. The lead screw movable block 703 is in transmission connection with the lead screw 701 through the sealing element 705. In the present embodiment, the sealing element 705 is a rubber sealing gasket 8033, and the slot is a V-shaped slot. The sealing effect is improved. It can also be an arc-shaped slot, and the present application does not limit it specifically. The arrangement of the sealing element 705 ensures that the lead screw 701 is sealed while the lead screw movable block 703 is running, avoiding the influence of grease solidification on the transmission of the lead screw 701, ensuring the normal transmission of the lead screw 701 and improving the service life.

[0082] Referring to Figure 4 In an optional embodiment of the present embodiment, the driving assembly 700 further comprises a sliding rail 707 and a sliding block. The sliding rail 707 is arranged on the housing assembly 300, and the smoke hood 500 is slidably connected to the housing assembly 300 through the sliding rail 707 and the sliding block. The sliding rail 707 is arranged on both sides of the lead screw 701 and is fixedly installed on the inner wall of the housing rear plate 304. The sliding block is installed on the smoke hood 500 and slidably cooperates with the sliding rail 707. By arranging the sliding 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.

[0083] Referring to Figure 12 , Figure 13 , Figure 14 and Figure 15 In an optional embodiment of the present embodiment, the smoke collecting device further comprises an oil path structure. The oil path structure comprises an oil baffle 901, an oil path channel and an oil cup 902. The oil baffle 901 is connected to the housing assembly 300, and the oil cup 902 is arranged at the lower end of the smoke hood 500 and moves synchronously with the smoke hood 500. Specifically, the oil baffle 901 comprises a front side plate 9011 and a horizontal plate 9012. The front side plate 9011 and the horizontal plate 9012 are at an angle, and the angle is 8°-45°. In the present embodiment, the angle is 25°. The horizontal plate 9012 is arranged in the housing assembly 300 and is connected to the housing bottom plate 303. The rear side of the horizontal plate 9012 abuts against the housing rear plate 304. An oil baffle opening 903 is arranged at one end of the front side plate 9011 close to the horizontal plate 9012. A first oil baffle edge 904 is arranged on the outer periphery of the oil baffle 901. A second oil baffle edge 905 is arranged on the edge of the oil baffle opening 903. The vertical height of the first oil baffle edge 904 and the second oil baffle edge 905 is d1, which is greater than 3 mm. In the present embodiment, d1=6 mm. The first oil baffle edge 904 and the second oil baffle edge 905 form an oil guide groove 906 with the horizontal plate 9012. The width of the narrowest part of the oil guide groove 906 is d2, which is greater than 6 mm. In the present embodiment, d2=25 mm. The oil guide groove 906 can avoid oil solidification and blockage of the oil path. A drainage port 907 is arranged on the front side plate 9011 and communicates with the oil guide groove 906. An oil receiving port 908 is arranged on the smoke hood 500. When the smoke hood 500 is completely 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. An oil leakage hole is arranged on the inner side of the smoke hood 500. The oil path channel communicates 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. The oil dripping from the drainage port 907 falls into the smoke hood 500, passes through the oil leakage hole arranged on the inner side of the smoke 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 the dripping oil phenomenon in the range hood 100.

[0084] Embodiment Two

[0085] The embodiment provides another structural form of the smoke collecting device, which is different from the smoke collecting device provided in Embodiment One in that:

[0086] Referring to Figure 19 , the linkage assembly 800 comprises a rotating assembly 806 and a driven assembly 804; the rotating assembly 806 is arranged on the smoke collecting hood 500, one end of the rotating assembly 806 is connected with the baffle 600, and the other end of the rotating assembly 806 is connected with the driven assembly 804; one end of the driven assembly 804, which is away from the rotating assembly 806, is connected with the housing assembly 300; when the drive assembly 700 drives the smoke collecting hood 500 to extend out of the housing assembly 300, the driven assembly 804 drives the rotating assembly 806 to rotate, so that the baffle 600 is opened to the smoke inlet; one end of the driven assembly 804 is connected with the rotating assembly 806, and the other end of the driven assembly 804 is connected with the housing assembly 300; when the drive assembly 700 drives the smoke collecting hood 500 to extend out of the housing assembly 300, the driven assembly 804 is driven to move downward; when the drive assembly 700 further drives the smoke collecting hood 500 to descend, the driven assembly 804 drives the rotating assembly 806 to rotate, and then pulls the baffle 600 connected with the rotating assembly 806 to open. The smoke collecting device provided in the embodiment satisfies multiple actions of moving the smoke collecting hood 500 and driving the baffle 600 to open and close the smoke inlet by arranging a single power source, thereby relieving the technical problems that a single power source in the related art can only satisfy a single action, and that arranging multiple power sources increases the cost and the manufacturing difficulty.

[0087] Referring to Figure 20 In an optional implementation form of the embodiment, the smoke collecting device further comprises a limiting assembly, and the limiting assembly comprises a first limiting box 807; the first limiting box 807 is arranged on the housing assembly 300, and a second limiting groove 808 in the vertical direction is formed in the first limiting box 807; one end of the driven assembly 804 is in sliding fit with the second limiting groove 808, and the first limiting box 807 limits the movement of the driven assembly 804.

[0088] Referring to Figures 20-22 In an optional implementation form of the embodiment, the driven assembly 804 comprises a guide piece and a transmission piece; one end of the guide piece is in sliding connection with the first limiting box 807, and the other end of the guide piece is connected with the transmission piece; one end of the transmission piece, which is away from the guide piece, is connected with the rotating assembly 806. The one end of the guide piece slides in the vertical direction along the second limiting groove 808, the second limiting groove 808 limits the movement of the guide piece, and the guide piece plays a guiding role in the transmission of the transmission piece which is hinged to the guide piece.

[0089] Referring to Figure 21 and Figure 22In an optional implementation of the 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 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 shaft 8045 is connected to the third connecting rod 8043 via a third rotating shaft 8046, and the middle part of the second connecting rod 8042 is connected to the smoke collecting hood 500 via a fourth rotating shaft 8047, and the second connecting rod 8042 rotates about the fourth rotating shaft 8047 as the center; one end of the third connecting rod 8043 away from the second connecting rod 8042 is connected to the rotating assembly 806 via a fifth rotating shaft 8048.

[0090] With reference to Figure 21 In an optional implementation of the embodiment, 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 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 collecting hood 500, and the rotating bracket 8061 is rotatably connected to the smoke collecting hood 500 via the bracket rotating shaft 8062, so that the rotating bracket 8061 rotates about the bracket rotating shaft 8062.

[0091] With reference to Figure 25 and Figure 26 In an optional implementation of the embodiment, the smoke collecting device further includes a second elastic member 810, the second elastic member 810 causes the baffle 600 to have a movement tendency of closing the smoke inlet; in the state where the baffle 600 opens the smoke inlet, the second elastic member 810, the baffle 600 and the smoke collecting hood 500 enclose the smoke containing cavity; the number of the second elastic member 810 is two, the two second elastic members 810 are arranged at two ends of the smoke collecting hood 500 respectively, 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 fixedly connected to the smoke collecting hood 500 and the baffle 600 respectively; in the state where the smoke inlet is opened, the second elastic member 810, the baffle 600 and the smoke collecting hood 500 enclose the smoke containing cavity, and the two second elastic members 810 are both in a stretched state, so that the baffle 600 has a movement tendency of closing the smoke inlet.

[0092] With reference to Figure 21, the fourth rotating shaft 8047 and the bracket rotating shaft 8062 are fixed rotating shafts, and E point and F point in the figure are respectively, 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, and A, B, C and D in the figure are respectively, when the range hood 100 starts to work, the screw rod 701 runs, drives the screw rod movable block 703 to move vertically downward along the screw rod 701, and then drives the screw rod connecting plate 702 fixed with the screw rod movable block 703 to move, so that the smoke collecting hood 500 connected with the screw rod connecting plate 702 also runs with the screw rod movable block 703, the smoke collecting hood 500 starts to move linearly downward perpendicular to the horizontal plane from the completely hidden position, the running distance L1, the A point of the first connecting rod 8041 moves in the limiting groove in the limiting box by the distance L2, at this time, the A point of the first connecting rod 8041 runs to the limiting point at the lower end of the limiting groove and is limited, in this stage, the driven assembly 804 moves with the smoke collecting hood 500 simultaneously, and there is no relative displacement, so that the driven assembly 804 does not generate a transmission effect; the driving assembly 700 further works, the smoke collecting hood 500 drives the driven assembly 804 to continue to move downward, at this time, the A point in the first connecting rod 8041 is limited by the limiting groove, at this time, the driven assembly 804 starts to transmit, the driven assembly 804 and the smoke collecting hood 500 generate relative displacement, one end of the first connecting rod 8041 drives the second connecting rod 8042, the second connecting rod 8042 rotates around the fixed shaft F point, wherein the movable shaft B point runs from b1 to b2, and the movable shaft C point runs from c1 to c2; the second connecting rod 8042 and the third connecting rod 8043 are connected, the movable shaft C point drives the D point in the third connecting rod 8043 to move around the fixed shaft E point, and the movable shaft D point runs from d1 to d2; when the movable shaft D point rotates, the baffle 600 is driven to rotate and open, when the baffle 600 rotates and opens, the two second elastic members 810 on the sides are driven to expand, the whole opening process is completed, and the range hood 100 starts to work, in this process, a single power source completes two actions: one is that the smoke collecting hood 500 moves from the hidden position to the smoke suction area; the other is that the baffle 600 is opened, and the two second elastic members 810 on the sides are expanded to form the smoke gathering cavity.

[0093] Example three

[0094] The embodiment provides a smoke collecting device with another structural form, which is different from the smoke collecting devices provided in the foregoing examples one and two.

[0095] Referring to Figure 27 and Figure 28 The driven assembly 804 includes a second roller 8049, a roller fixing frame 8050 and a flexible member 8051; the second roller 8049 is connected with the smoke collecting hood 500 through the roller fixing frame 8050, the flexible member 8051 passes below the second roller 8049, one end of the flexible member 8051 is connected with the rotating assembly 806, and the other end is connected with the shell assembly 300.

[0096] The flexible member 8051 is a connecting line in this embodiment. The connecting line has strong rigidity when being stressed and can be wound when not being stressed. In other embodiments, the flexible member 8051 can be a belt, a steel wire or the like, to ensure that the flexible member 8051 has sufficient rigidity and softness, can stretch the rotating assembly 806 when being stressed, and is easy to store when not being stressed.

[0097] The driving assembly 700 drives the smoke collecting hood 500 to run in two stages. In the first stage, the smoke collecting hood 500 starts to move linearly downward along the vertical plane from the inside of the shell assembly 300, i.e., from the completely hidden position, and the running 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 connecting line passing through the lower side of the second roller 8049 is pulled tight near one side of the rotating support 8061. In the second stage, the driving assembly 700 drives the smoke collecting hood 500 to run further downward, the connecting line starts to be stressed, and the rotating assembly 806 connected with the connecting line is pulled to rotate from the initial position A to position B, thereby driving the baffle 600 connected with the rotating assembly 806 to start rotating until the connecting line is completely pulled tight, and the running distance of the smoke collecting hood 500 is L2. At this time, the smoke inlet is completely opened, and the volute system starts to work.

[0098] Specifically, as shown in Figure 34 , the second roller 8049 is connected with the smoke collecting hood 500 through the roller fixing frame 8050, has a fixed relative position with the smoke collecting hood 500 and moves in the same way, and the second roller 8049 rotates through the roller rotating shaft 8054. The flexible member 8051 passes through the lower side of the second roller 8049, and one end of the flexible member 8051 is connected with the rotating assembly 806 and the other end is connected with the shell assembly 300. The smoke collecting hood 500 drives the second roller 8049 to roll relative to the connecting line, to reduce the friction between the second roller 8049 and the connecting line.

[0099] Referring to Figure 29 , Figure 30 , Figure 31 and Figure 32 , in the embodiments of the present application, the driven assembly 804 further includes a limiting support 8052 connected with the second roller 8049. The limiting support 8052 and the inner groove of the surface of the second roller 8049 form an annular gap, and the flexible member 8051 passes through the annular gap. The limiting support 8052 is used to limit the connecting line to prevent the connecting line from falling off the outer periphery of the second roller 8049.

[0100] As Figure 30As shown, the limiting bracket 8052 has a U-shaped cross-section. A limiting boss 8053 is provided on the inner side of the limiting bracket 8052. The limiting boss 8053 and the groove of the second roller 8049 form a space that can accommodate the connecting wire and limit its movement. The limiting boss 8053 ensures that the connecting wire remains within the groove on the surface of the second roller 8049 in any state. By setting the limiting bracket 8052, the annular gap formed between the limiting boss 8053 on the inner side of the limiting bracket 8052 and the surface of the second roller 8049 ensures that the connecting wire always passes under the second roller 8049, improving the reliability of the movement between the connecting wire and the linkage assembly 800.

[0101] like Figure 29 As shown, the limiting bracket 8052 covers the area below the axis of the second roller 8049, that is, directly below the second roller 8049 when viewed from the front. The coverage angle of the limiting bracket 8052 is α, where 180° > α > 90°. In this embodiment, α = 155°. The limiting bracket 8052 and the second roller 8049 are provided with several matching mounting through holes, through which the limiting bracket 8052 and the second roller 8049 are bolted together. The part of the connecting line that mates with the second roller 8049 is located between the second roller 8049 and the limiting bracket 8052. The coverage angle range of the limiting bracket is set to 90°-180° to increase the contact length between the connecting line and the second roller 8049, ensuring that the connecting line operates normally within the groove of the second roller 8049 when under force.

[0102] The limiting boss 8053 may be provided only on the inner side of the limiting bracket 8052, or the coverage angle range of the limiting bracket 8052 may be set only to 90°-180°, or the limiting boss 8053 may be provided on the inner side of the limiting bracket 8052 and the coverage angle range of the limiting bracket 8052 may be set to 90°-180°.

[0103] Please see Figure 33 In a further embodiment of this example, the outer shell assembly 300 is further provided with a second limiting box 809. The second limiting box 809 is fixedly installed on the rear plate 304 of the outer shell. One end of the connecting line away from the rotating assembly 806 is connected to the second limiting box 809. The second limiting box 809 fixes one end of the connecting line, limiting the length of the connecting line that is stretched, thereby limiting the running distance of the smoke hood 500.

[0104] When the connecting line is fully pulled tight in the second stage, the second limiting box 809 limits the connecting line so that the smoke hood 500 cannot continue to run downward, and the running distance of the smoke hood 500 is L2, at this time the smoke inlet is fully opened, and the volute system starts to work. When the range hood 100 is closed, the driving assembly 700 drives the smoke hood 500 to retract, and the second elastic member 810 rebounds to pull back the baffle 600, so that the smoke inlet is closed, and then drives the rotating support 8061 connected with the baffle 600 to run from the B point to the A point, the connecting line is loosened until the smoke hood 500 is completely retracted into the housing assembly 300.

[0105] Embodiment Four

[0106] The embodiment provides a smoke collecting device with another structural form, which is different from the smoke collecting device provided in Embodiment Three in that:

[0107] Please refer to Figure 35 The driven assembly 804 includes a connecting rod 8055 connected with the smoke hood 500 through a fixing member, and the flexible member 8051 passes below the connecting rod 8055 and is connected with the rotating assembly 806 and the housing assembly 300 at two ends, respectively. In the process of the smoke hood 500 descending, the connecting line is pulled tight through the connecting rod 8055.

[0108] In a further implementation form of the embodiment, the connecting rod 8055 is provided with a first limiting groove 8056, 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 arranging the first limiting groove 8056, the flexible member 8051 can be limited, and the reliability and stability of the relative movement between the flexible member 8051 and the linkage assembly 800 are improved.

[0109] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A fume collecting device, characterized by, The utility model relates to a smoke exhaust device, which comprises: a housing assembly (300); a smoke hood (500) provided with a smoke inlet on one side thereof; a baffle (600) movably connected with the smoke hood (500) and used for opening or closing the smoke inlet; a driving assembly (700) drivingly connected with the smoke hood (500) and used for driving the smoke hood (500) to extend out of or be accommodated in the housing assembly (300); a linkage assembly (800) installed on the housing assembly (300) and used for driving the baffle (600) to open the smoke inlet during the extension of the smoke hood (500) out of the housing assembly (300); the linkage assembly (800) comprises a rotating assembly (806) and a driven assembly (804); the baffle is installed on the rotating assembly, the rotating assembly (806) is arranged on the smoke hood (500), one end of the rotating assembly (806) is connected with the baffle (600), the other end of the rotating assembly (806) is connected with the driven assembly (804), one end of the driven assembly (804) away from the rotating assembly (806) is connected with the housing assembly (300), and when the driving assembly (700) drives the smoke hood (500) to extend out of the housing assembly (300), the driven assembly (804) drives the rotating assembly (806) to rotate, so that the baffle (600) opens the smoke inlet; the driven assembly (804) comprises a second roller (8049), a roller fixing frame (8050) and a flexible member (8051); the second roller (8049) is connected with the smoke hood (500) through the roller fixing frame (8050), the flexible member (8051) passes below the second roller (8049), one end of the flexible member (8051) is connected with the rotating assembly (806), and the other end of the flexible member (8051) is connected with the housing assembly (300).

2. The smoke device of claim 1, wherein, the driven assembly (804) further comprises a limiting support (8052), the limiting support (8052) is connected with the second roller (8049), an annular gap is formed between the limiting support (8052) and a groove in the surface of the second roller (8049), and the flexible member (8051) passes through the annular gap.

3. The air management device of claim 2, wherein, a section of the limiting support (8052) is in a U shape, an inner side of the limiting support (8052) is provided with a limiting boss (8053), and a space capable of accommodating the flexible member (8051) and limiting the flexible member (8051) is formed between the limiting boss (8053) and the groove of the second roller (8049); alternatively, the limiting support (8052) is arranged below an axis of the second roller (8049), and a covering angle range of the limiting support (8052) is 90°-180°.

4. The smoke device of claim 1, wherein, the rotating assembly (806) comprises a rotating support (8061) and a support rotating shaft (8062); The rotating support (8061) is rotationally connected with the smoke hood (500) through the support rotating shaft (8062), one end of the rotating support (8061) is connected with the baffle (600), and the other end is connected with the driven assembly (804).

5. The fume hood of any of claims 1-4, wherein the fume hood further comprises a hood door, and the hood door is configured to move between an open position and a closed position. The smoke collecting device further comprises a second elastic member (810), which causes the baffle (600) to have a movement tendency of closing the smoke inlet, and the second elastic member (810) surrounds the smoke collecting cavity with the baffle (600) and the smoke hood (500) in a state where the baffle (600) opens the smoke inlet.

6. The smoke collection device according to any one of claims 1-4, characterized in that, The smoke collecting device further comprises an oil path structure, which comprises an oil baffle (901), an oil path channel and an oil cup (902), the oil baffle (901) is connected with the shell assembly (300), the oil cup (902) is arranged at a lower end of the smoke hood (500), and the oil baffle (901), the oil path channel and the oil cup (902) are sequentially and communicatively arranged.

7. The air management device of claim 6, wherein, The oil baffle (901) comprises a front side plate (9011) and a horizontal plate (9012), the horizontal plate (9012) is arranged in the shell assembly (300), an oil baffle opening (903) is arranged at one end of the front side plate (9011) close to the horizontal plate (9012), a first oil blocking edge (904) is arranged on an outer periphery of the oil baffle (901), a second oil blocking edge (905) is arranged at an edge of the oil baffle opening (903), the first oil blocking edge (904) and the second oil blocking edge (905) form an oil guide groove (906) with the horizontal plate (9012), a drainage port (907) is arranged on the front side plate (9011) and is in communication with the oil guide groove (906), an oil receiving port (908) is arranged on the smoke hood (500), when the smoke hood (500) completely extends out of the shell assembly (300), the oil receiving port (908) is located in a vertical direction of a lowest point of the drainage port (907), an oil leakage hole is arranged on an inner side of the smoke hood (500), and the oil path channel is in communication with the drainage port (907), the oil receiving port (908) and the oil leakage hole respectively.

8. A range hood (100), characterized in that The smoke collecting device comprises a volute assembly (200) and the smoke collecting device according to any one of claims 1-7, and the volute assembly (200) is arranged in the shell assembly (300).

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