Range hood

Abstract

The invention belongs to the technical field of kitchen appliances, and particularly relates to a range hood. The range hood aims at solving the problem that related range hoods are low in suction efficiency on gas such as oil smoke. According to the range hood disclosed by the embodiment of the invention, a first smoke suction opening is formed in a shell; the lifting mechanism is arranged at the rear end of the shell and comprises a telescopic assembly, a driving device and a shear fork structure. The telescopic assembly is provided with a smoke inlet channel and a second smoke suction port, and at least part of the telescopic assembly is telescopically arranged in the vertical direction relative to the shell, so that the second smoke suction port moves to the position below the shell or is hidden in the shell; the two ends of the scissor structure in the telescopic direction are hinged to the shell and the telescopic assembly correspondingly. By means of the arrangement, the telescopic assembly with the second smoke suction opening is arranged at the rear end of the shell and used for sucking gas such as oil smoke located between the first smoke suction opening of the shell and a kitchen range, so that the amount of the gas such as the oil smoke located between the first smoke suction opening and the kitchen range diffused all around is reduced, and the suction efficiency of the range hood on the gas such as the oil smoke is improved.

Description

Technical Field

[0001] The embodiments of the present application belong to the technical field of kitchen appliances, and particularly relate to an oil fume extractor. Background Art

[0002] An oil fume extractor is usually installed above a kitchen stove, and can output gases such as the exhaust gas generated by the combustion of the stove and the oil fume generated during the cooking process to the outside, so as to improve the air quality in the kitchen.

[0003] In the related art, the oil fume extractor includes a main box body, a housing and a fan. The main box body is used to be fixed on a wall, the housing is fixedly arranged at the bottom of the main box body, and the fan is fixedly arranged in the main box body. The housing is configured with a smoke inlet, and the main box body is configured with a smoke outlet. When the fan works, gases such as oil fume enter the housing and the main box body from the smoke inlet and are discharged from the smoke outlet.

[0004] However, when the oil fume extractor in the related art is in use, the suction efficiency of gases such as oil fume is low, resulting in the easy diffusion of gases such as oil fume to other areas of the kitchen. Summary of the Invention

[0005] The main purpose of the embodiments of the present application is to provide an oil fume extractor to solve the problem of low suction efficiency of gases such as oil fume in the oil fume extractor in the related art.

[0006] To achieve the above purpose, the embodiments of the present application provide an oil fume extractor, including:

[0007] A main box body;

[0008] A housing, arranged at the bottom of the main box body. The housing is configured with a first smoke suction port, and the first smoke suction port is communicated with the inner cavity of the main box body. The first smoke suction port is used to face the stove;

[0009] A lifting mechanism, arranged at the rear end of the housing. The lifting mechanism includes a telescopic component, a driving device and a scissor structure; the telescopic component has a smoke inlet channel, and the smoke inlet channel is communicated with the inner cavity of the main box body; a second smoke suction port communicated with the smoke inlet channel is configured on the front side of the telescopic component. At least part of the telescopic component is telescopically arranged relative to the housing in the vertical direction, so that the second smoke suction port moves below the housing or is hidden in the housing; the two ends of the scissor structure in the telescopic direction are respectively hinged to the housing and the telescopic component; the driving device is in transmission connection with the telescopic component and drives the telescopic component to move in the vertical direction.

[0010] In a possible implementation manner, the telescopic component includes a first component and a telescopic frame;

[0011] The first component is fixedly arranged on the housing, and the first component is configured to form a first smoke inlet cavity;

[0012] The telescopic frame is telescopically arranged on the first component. The telescopic frame is in transmission connection with the driving device and is hinged to the bottom end of the scissors structure. The telescopic frame is configured with a second smoke suction port and a second smoke inlet cavity. The second smoke suction port is communicated with the second smoke inlet cavity, and the second smoke inlet cavity is communicated with the first smoke inlet cavity to form a smoke inlet passage.

[0013] In a possible implementation manner, the telescopic component further includes a second component. The second component is telescopically arranged on the first component, and the telescopic frame is telescopically arranged on the second component.

[0014] The second component is configured with a third smoke inlet cavity. The third smoke inlet cavity is communicated with the first smoke inlet cavity and the second smoke inlet cavity respectively. The smoke inlet passage includes the first smoke inlet cavity, the second smoke inlet cavity and the third smoke inlet cavity.

[0015] In a possible implementation manner, the scissors structure includes a first cross bar and a second cross bar.

[0016] The first cross bar includes a first rod and a second rod which are hinged to each other. The tops of the first rod and the second rod are both hinged to the housing. One of the first rod and the second rod is slidably arranged relative to the housing along the length direction of the range hood. The bottoms of the first rod and the second rod are both hinged to the second component.

[0017] The second cross bar includes a third rod and a fourth rod which are hinged to each other. The tops of the third rod and the fourth rod are respectively hinged to the first rod and the second rod. The bottoms of the third rod and the fourth rod are both hinged to the telescopic frame. One of the third rod and the fourth rod is slidably arranged relative to the telescopic frame along the length direction of the range hood.

[0018] In a possible implementation manner, the first component includes a first frame body and a first smoke inlet pipe. The first frame body is fixedly arranged on the housing. The first smoke inlet pipe is arranged on the first frame body. The first smoke inlet pipe has a first smoke inlet cavity.

[0019] The second component includes a second frame body and a second smoke inlet pipe. The second frame body is telescopically arranged on the first frame body. The second smoke inlet pipe is arranged on the second frame body. The second smoke inlet pipe has a third smoke inlet cavity. The second smoke inlet pipe and the first smoke inlet pipe are nested.

[0020] In a possible implementation manner, the first frame body is configured with a first installation opening, and the first smoke inlet pipe is inserted into the first installation opening.

[0021] The second frame body is configured with a second installation opening, and the second smoke inlet pipe is inserted into the second installation opening. And the second smoke inlet pipe and the first smoke inlet pipe are nested.

[0022] The telescopic frame is configured with a third installation opening, and the second smoke inlet pipe is telescopically arranged in the third installation opening.

[0023] In a possible implementation, the scissor-type structure is hinged to the first frame and the second frame respectively.

[0024] In one possible implementation, the driving device is connected to the middle portion of the telescopic assembly along the length direction of the range hood;

[0025] There are two scissor-fork structures, which are symmetrically arranged on both sides of the driving device along the length direction.

[0026] In a possible implementation, the bottom of the telescopic assembly is configured with an oil port, which is communicated with the smoke inlet channel;

[0027] The range hood further comprises an oil cup, which is detachably arranged at the bottom of the telescopic assembly, and an inner cavity of the oil cup is correspondingly connected to the oil port.

[0028] In a possible implementation, the range hood further includes a flap rotatably disposed at the bottom of the housing to open or cover the first smoke outlet;

[0029] The telescopic assembly is hidden in the shell, and when the flap covers the first smoking port, the bottom of the oil cup, the flap and the bottom of the shell are flush.

[0030] As will be understood by those skilled in the art, the range hood of the present application comprises a main housing, a shell, and a lifting mechanism; the shell is disposed at the bottom of the main housing, the shell having a first exhaust port connected to an inner cavity of the main housing and intended to face the stove; the lifting mechanism is disposed at the rear end of the shell, the lifting mechanism comprising a telescopic assembly, a driving device, and a scissor-type structure; the telescopic assembly has a smoke inlet passage connected to the inner cavity of the main housing; the front side of the telescopic assembly has a second exhaust port connected to the smoke inlet passage, at least a portion of the telescopic assembly is vertically telescopic relative to the shell so as to move the second exhaust port below the shell or be hidden within the shell; the two ends of the scissor-type structure are hinged to the shell and the telescopic assembly in the telescopic direction respectively; the driving device is in transmission connection with the telescopic assembly and drives the telescopic assembly to move in the vertical direction. By the above arrangement, the telescopic assembly having the second exhaust port is disposed at the rear end of the shell to draw in oil smoke and other gases between the first exhaust port of the shell and the stove, thereby reducing the amount of oil smoke and other gases between the first exhaust port and the stove that diffuse to the surrounding area, thereby improving the efficiency of the range hood in drawing in oil smoke and other gases. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The preferred embodiment of the range hood of the present application is described below with reference to the accompanying drawings.

[0032] Figure 1 This is a schematic diagram of the structure of the range hood of the embodiment of the present application when the telescopic assembly is in the extended state. Figure 1 ;

[0033] Figure 2 It is a schematic structure of the range hood according to an embodiment of the present application when the telescopic assembly is in the extended state Figure 2 ;

[0034] Figure 3 It is a cross-section of the range hood according to an embodiment of the present application when the telescopic assembly is in the extended state Figure 1 ;

[0035] Figure 4 It is a schematic structure of the range hood according to an embodiment of the present application when the telescopic assembly is in the extended state Figure 3 ;

[0036] Figure 5 It is a schematic structure diagram of the range hood according to an embodiment of the present application when the telescopic assembly is in the retracted state;

[0037] Figure 6 It is a cross-section of the range hood according to an embodiment of the present application when the telescopic assembly is in the extended state Figure 2 ;

[0038] Figure 7 It is a cross-section of the range hood according to an embodiment of the present application when the telescopic assembly is in the retracted state Figure 1 ;

[0039] Figure 8 It is a cross-section of the range hood according to an embodiment of the present application when the telescopic assembly is in the extended state Figure 3 ;

[0040] Figure 9 It is a cross-section of the range hood according to an embodiment of the present application when the telescopic assembly is in the retracted state Figure 2 。

[0041] In the drawings:

[0042] 10, main cabinet; 101, smoke exhaust port;

[0043] 20, housing; 201, first smoke suction port;

[0044] 30, fan;

[0045] 40, lifting mechanism;

[0046] 50, telescopic assembly;

[0047] 501, smoke inlet channel; 510, first component;

[0048] 511, first frame; 512, first mounting opening;

[0049] 513, first smoke inlet pipe; 514, first smoke inlet cavity;

[0050] 515, first bent edge; 520, telescopic frame;

[0051] 521. Second smoking port; 522. Second smoke inlet cavity;

[0052] 523. Third installation port; 524. Oil port;

[0053] 530. Second component; 531. Second frame body;

[0054] 532. Second installation port; 533. Second smoke inlet pipe;

[0055] 534. Third smoke inlet cavity; 535. Second bending edge;

[0056] 60. Driving device;

[0057] 601. Electric push rod; 602. Push rod body;

[0058] 603. Telescopic rod; 604. Connecting piece;

[0059] 70. Scissor structure;

[0060] 710. First cross bar; 711. First bar;

[0061] 712. Second bar; 720. Second cross bar;

[0062] 721. Third bar; 722. Fourth bar;

[0063] 80. Oil cup;

[0064] 90. Flap. Detailed implementation manners

[0065] First of all, those skilled in the art should understand that these implementation manners are only used to explain the technical principles of the embodiments of the present application, and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art can make adjustments according to needs to adapt to specific application scenarios.

[0066] Secondly, it should be noted that in the description of the embodiments of the present application, the terms indicating the direction or positional relationship such as "inner" and "outer" are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description, rather than indicating or implying that the device or component must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the embodiments of the present application.

[0067] In addition, it should be noted that in the description of the embodiments of the present application, unless otherwise clearly specified and limited, the terms "connected" and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific situations.

[0068] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the scope of protection of the present application.

[0069] As described in the background art, the range hoods in the related art have the problem of low suction efficiency for gases such as cooking fumes. After research by the inventor, it is found that the reason for this problem is that in the range hoods in the related art, the smoke inlet is usually configured at the bottom of the housing, the smoke inlet faces the cooking stove, and there is a certain height difference between the smoke inlet and the cooking stove. When the range hood is working, a negative pressure is formed at the smoke inlet to suck gases such as cooking fumes. When the gases such as cooking fumes move upward, due to the certain height difference between the smoke inlet and the cooking stove, part of the cooking fumes is likely to diffuse around before flowing to the smoke inlet, resulting in the problem of low suction efficiency of the range hood for gases such as cooking fumes.

[0070] To solve the above technical problems, the embodiments of the present application provide a range hood. By providing a telescopic component with a second smoke suction port at the rear end of the housing, the gases such as cooking fumes located between the first smoke suction port of the housing and the cooking stove are sucked, so as to reduce the amount of gases such as cooking fumes located between the first smoke suction port and the cooking stove from diffusing around, and improve the suction efficiency of the range hood for gases such as cooking fumes.

[0071] The principles and features of the embodiments of the present application will be described below with reference to the accompanying drawings. The examples given are only used to explain the embodiments of the present application and are not intended to limit the scope of the embodiments of the present application.

[0072] Reference Figure 1 and Figure 2, the range hood provided by the embodiment of the present application includes a main cabinet 10, a housing 20, and a blower 30. The housing 20 is disposed at the bottom of the main cabinet 10. A first smoke suction port 201 is defined on the housing 20, and the first smoke suction port 201 is used to face the cooking appliance. A smoke exhaust port 101 is defined on the main cabinet 10. The first smoke suction port 201 communicates with the inner cavity of the main cabinet 10. The blower 30 can be disposed within the main cabinet 10. When the blower 30 operates, gases such as the exhaust gas generated by the combustion of the cooking appliance and the oil fume generated during the cooking process can enter the housing 20 through the first smoke suction port 201, and are discharged through the smoke exhaust port 101 under the action of the blower 30, so as to improve the air quality in the kitchen.

[0073] Reference Figure 2 , the range hood provided by the embodiment of the present application may further include a lifting mechanism 40. The lifting mechanism 40 is disposed at the rear end of the housing 20.

[0074] It should be noted that the front-rear direction in the embodiment of the present application is along the width direction Y of the range hood. Among them, the front end is closer to the user than the rear end, and the rear end is closer to the installation wall of the range hood than the front end.

[0075] Reference Figure 2 and Figure 3 , the lifting mechanism 40 may include a telescopic assembly 50. The telescopic assembly 50 has a smoke inlet passage 501, and the top end of the smoke inlet passage 501 can communicate with the inner cavity of the main cabinet 10.

[0076] Reference Figure 1 , Figure 3 and Figure 4 , a second smoke suction port 521 may be formed on the front side of the telescopic assembly 50. The second smoke suction port 521 communicates with the smoke inlet passage 501.

[0077] At least a part of the telescopic assembly 50 is telescopically disposed relative to the housing 20 in the vertical direction Z, so that the second smoke suction port 521 moves below the housing 20 (reference Figure 4 ) or is hidden within the housing 20 (reference Figure 5 ).

[0078] The telescopic assembly 50 may have an extended state and a retracted state.

[0079] Reference Figures 1 - 4 , when the telescopic assembly 50 is in the extended state, the second smoke suction port 521 moves below the housing 20. When the blower 30 operates, the second smoke suction port 521 can suck gases such as oil fume between the first smoke suction port 201 and the cooking appliance, so as to reduce the amount of gases such as oil fume between the first smoke suction port 201 and the cooking appliance from diffusing around, and improve the suction efficiency of the range hood for gases such as oil fume.

[0080] Reference Figure 5When the telescopic component 50 is in the retracted state, the second smoking port 521 is hidden inside the housing 20 to block the second smoking port 521, improving the decorative effect of the range hood.

[0081] In some possible implementation manners of the embodiments of the present application, referring to Figure 2 and Figure 3 the telescopic component 50 may include a first component 510 which is fixedly arranged on the housing 20, and the first component 510 is configured to form a first smoke inlet cavity 514.

[0082] In some possible implementation manners of the embodiments of the present application, referring to Figure 3 and Figure 6 the first component 510 may include a first frame body 511 and a first smoke inlet pipe 513. The first frame body 511 may be fixedly arranged on the housing 20 through fastening bolts or the like. The first smoke inlet pipe 513 is arranged on the first frame body 511, and the first smoke inlet pipe 513 has a first smoke inlet cavity 514.

[0083] In some possible implementation manners of the embodiments of the present application, referring to Figure 3 the first frame body 511 may be configured with a first installation opening 512, and the axis of the first installation opening 512 may be along the vertical direction Z. The first smoke inlet pipe 513 may be inserted into the first installation opening 512.

[0084] In some embodiments, the first smoke inlet pipe 513 may be fixedly arranged with the first frame body 511, so that relative movement between the first smoke inlet pipe 513 and the first frame body 511 is not likely to occur, improving the reliability of the connection between the first smoke inlet pipe 513 and the first frame body 511.

[0085] In some other embodiments, the first smoke inlet pipe 513 may be movably inserted into the first installation opening 512. The top end of the first smoke inlet pipe 513 may be bent outward to form a first bending edge 515, and the first bending edge 515 may be lapped on the first frame body 511, so as to improve the convenience of disassembly and assembly between the first smoke inlet pipe 513 and the first frame body 511.

[0086] In some possible implementation manners of the embodiments of the present application, referring to Figure 3 and Figure 6 the telescopic component 50 may further include a telescopic frame 520. The front side of the telescopic frame 520 may be configured with a second smoking port 521, and the telescopic frame 520 may have a second smoke inlet cavity 522, and the second smoking port 521 is communicated with the second smoke inlet cavity 522.

[0087] In some possible implementation manners of the embodiments of the present application, the telescopic frame 520 is telescopically disposed on the first component 510, and the second smoke inlet cavity 522 communicates with the first smoke inlet cavity 514. The smoke inlet passage 501 may include the first smoke inlet cavity 514 and the second smoke inlet cavity 522. The first smoke inlet cavity 514 and the second smoke inlet cavity 522 communicate with each other to form the smoke inlet passage 501.

[0088] The structure of the telescopic assembly 50 formed by the telescopic frame 520 and the first component 510 is simple, which simplifies the assembly structure of the telescopic assembly 50.

[0089] In some other possible implementation manners of the embodiments of the present application, refer to Figure 3 and Figure 6 , the telescopic assembly 50 may further include a second component 530. The second component 530 is telescopically disposed on the first component 510, and the telescopic frame 520 is telescopically disposed on the second component 530.

[0090] Refer to Figure 3 and Figure 6 , the second component 530 may be configured with a third smoke inlet cavity 534. The third smoke inlet cavity 534 communicates with the first smoke inlet cavity 514 and the second smoke inlet cavity 522 respectively. The smoke inlet passage 501 includes the first smoke inlet cavity 514, the second smoke inlet cavity 522 and the third smoke inlet cavity 534, or in other words, the first smoke inlet cavity 514, the second smoke inlet cavity 522 and the third smoke inlet cavity 534 form the smoke inlet passage 501.

[0091] When the difference between the length of the telescopic assembly 50 in the extended state and the length in the contracted state remains unchanged, by disposing the second component 530 between the first component 510 and the telescopic frame 520, the number of sections of the telescopic assembly 50 is three. In the implementation manner where the telescopic assembly 50 includes the telescopic frame 520 and the first component 510, the number of sections of the telescopic assembly 50 is two. In this way, the number of sections of the telescopic assembly 50 can be increased, and the length of the telescopic assembly 50 in the vertical direction Z in the contracted state is reduced, thereby reducing the space occupied by the telescopic assembly 50 in the contracted state and reducing the space occupied by the telescopic assembly 50 in the housing 20.

[0092] In some embodiments, refer to Figure 3 and Figure 6 , the second component 530 may include a second frame body 531 and a second smoke inlet pipe 533. The second frame body 531 is telescopically disposed on the first frame body 511, and the second smoke inlet pipe 533 is disposed on the second frame body 531. The second smoke inlet pipe 533 has a third smoke inlet cavity 534, and the second smoke inlet pipe 533 and the first smoke inlet pipe 513 are nested.

[0093] In some possible implementation manners of the embodiments of the present application, refer to Figure 3 , Figure 6 and Figure 7, the second frame body 531 can be configured with a second mounting opening 532, the second smoke inlet pipe 533 can be inserted into the second mounting opening 532, and the second smoke inlet pipe 533 and the first smoke inlet pipe 513 are nested. The telescopic frame 520 can be configured with a third mounting opening 523, and the second smoke inlet pipe 533 is telescopically arranged in the third mounting opening 523.

[0094] In some embodiments, the second smoke inlet pipe 533 can be fixedly arranged with the second frame body 531, so that relative movement between the second smoke inlet pipe 533 and the second frame body 531 is not likely to occur, improving the reliability of the connection between the second smoke inlet pipe 533 and the second frame body 531.

[0095] In some other embodiments, the second smoke inlet pipe 533 can be movably inserted into the second mounting opening 532. The top end of the second smoke inlet pipe 533 can be bent outward to form a second bent edge 535, and the second bent edge 535 can be lapped on the second frame body 531, which can improve the convenience of disassembly and assembly between the second smoke inlet pipe 533 and the second frame body 531.

[0096] In the range hood according to the embodiment of the present application, referring to Figure 2 , the lifting mechanism 40 can further include a driving device 60. The driving device 60 is in transmission connection with the telescopic assembly 50 and drives the telescopic assembly 50 to move along the vertical direction Z.

[0097] In the implementation manner where the telescopic assembly 50 includes the telescopic frame 520, the driving device 60 can be connected to the telescopic frame 520 and drive the telescopic frame 520 to move along the vertical direction Z, so that the second smoke suction port 521 moves below the housing 20 or is hidden in the housing 20.

[0098] In some possible implementation manners of the embodiment of the present application, referring to Figure 2 and Figure 8 , the driving device 60 can include an electric push rod 601. The electric push rod 601 can include a push rod body 602 and a telescopic rod 603. The push rod body 602 can be fixedly arranged on the main box body 10. The axis of the telescopic rod 603 can be along the vertical direction Z. The telescopic rod 603 is telescopically connected to the push rod body 602, and the push rod body 602 is in transmission connection with the telescopic rod 603 and drives the telescopic rod 603 to telescopically move along its own axis direction.

[0099] Referring to Figure 2 , Figure 7 and Figure 8 , the end of the telescopic rod 603 is connected to the telescopic frame 520. When the push rod body 602 drives the telescopic rod 603 to move, the telescopic rod 603 drives the telescopic frame 520 to move synchronously.

[0100] In some embodiments, referring to Figure 2 , Figure 7and Figure 8 Moreover, the driving device 60 may further include a connecting member 604, which may be a connecting rod or a connecting plate. One end of the connecting member 604 may be fixedly connected to the end of the telescopic rod 603, and the end of the connecting member 604 facing away from the telescopic rod 603 may be fixedly connected to the telescopic frame 520.

[0101] Since the length of the telescopic rod 603 is limited, by providing the connecting member 604 at the end of the telescopic rod 603, on the one hand, the deficiency in the length of the telescopic rod 603 can be compensated; on the other hand, it is convenient to indirectly connect the telescopic frame 520 and the telescopic rod 603.

[0102] In some other embodiments, the driving device 60 may include a driving motor, a gear, and a rack.

[0103] The driving motor may be disposed in the main housing 10. The driving motor includes a motor body and a motor shaft, and the axis of the motor shaft may be along the length direction X of the range hood. The motor body is in transmission connection with the motor shaft and drives the motor shaft to rotate about its own axis. The gear is fixedly disposed on the motor shaft and rotates with the motor shaft.

[0104] The rack may extend along the vertical direction Z. The rack may be disposed on the telescopic frame 520, and the rack meshes with the gear.

[0105] The motor body drives the motor shaft to rotate, the motor shaft drives the gear to rotate, and during the rotation of the gear, the rack is driven to move along the vertical direction Z, thereby driving the telescopic frame 520 to move along the vertical direction Z.

[0106] In the range hood according to the embodiment of the present application, referring to Figure 2 , the lifting mechanism 40 may further include a scissor structure 70. The two ends of the scissor structure 70 in the telescopic direction are respectively hinged to the housing 20 and the telescopic assembly 50, and drive the telescopic assembly 50 to telescopically move relative to the housing 20 along the vertical direction Z.

[0107] The scissor structure 70 can improve the stability and balance of the telescopic assembly 50 during the lifting process, so that the telescopic assembly 50 is not easily tilted or shaken.

[0108] The scissor structure 70 can also disperse and support the weight of the telescopic assembly 50, so that the telescopic assembly 50 is not easily deformed or damaged.

[0109] In some embodiments, referring to Figure 3 , Figure 8 and Figure 9, the scissor structure 70 may include a first cross member 710. The first cross member 710 includes a first member 711 and a second member 712 that are hinged to each other. The tops of the first member 711 and the second member 712 are both hinged to the housing 20, and the bottoms of the first member 711 and the second member 712 are both hinged to the second assembly 530. One of the first member 711 and the second member 712 is slidably disposed relative to the housing 20 along the length direction X of the range hood.

[0110] Reference Figure 3 , Figure 8 and Figure 9 , the scissor structure 70 may further include a second cross member 720. The second cross member 720 includes a third member 721 and a fourth member 722 that are hinged to each other. The tops of the third member 721 and the fourth member 722 are respectively hinged to the first member 711 and the second member 712, and the bottoms of the third member 721 and the fourth member 722 are both hinged to the telescopic frame 520. One of the third member 721 and the fourth member 722 is slidably disposed relative to the telescopic frame 520 along the length direction X of the range hood.

[0111] During the extension of the telescopic frame 520, that is, during the downward movement of the telescopic frame 520, the scissor structure 70 gradually unfolds. The tops of the first member 711 and the second member 712 move towards each other, the bottoms of the first member 711 and the second member 712 move towards each other, and the bottoms of the third member 721 and the fourth member 722 move towards each other, so that the length of the scissor structure 70 along the vertical direction Z increases (Reference Figure 8 ).

[0112] During the contraction of the telescopic frame 520, that is, during the upward movement of the telescopic frame 520, the scissor structure 70 gradually compresses. The tops of the first member 711 and the second member 712 move away from each other, the bottoms of the first member 711 and the second member 712 move away from each other, and the bottoms of the third member 721 and the fourth member 722 move away from each other, so that the length of the scissor structure 70 along the vertical direction Z decreases (Reference Figure 9 ).

[0113] Reference Figure 8 and Figure 9 , the top of the third member 721 may be hinged to the bottom of the first member 711, and the top of the fourth member 722 may be hinged to the bottom of the second member 712.

[0114] Reference Figure 9 , in an implementation manner where the telescopic assembly 50 includes a first frame body 511 and a second frame body 531, the scissor structure 70 may be respectively hinged to the first frame body 511 and the second frame body 531.

[0115] Exemplarily, the tops of the first rod member 711 and the second rod member 712 can be hinged to the first frame body 511, the bottoms of the first rod member 711 and the second rod member 712 can be hinged to the second frame body 531, and the bottoms of the third rod member 721 and the fourth rod member 722 can be hinged to the telescopic frame 520. In this way, during the unfolding and compression of the scissor structure 70, the second frame body 531 and the telescopic frame 520 can be driven to move synchronously, improving the unfolding and contraction speed of the telescopic assembly 50.

[0116] In some possible implementation manners of the embodiments of the present application, referring to Figure 8 , the driving device 60 can be connected to the middle of the telescopic assembly 50 along the length direction X of the range hood. There are two scissor structures 70, and the two scissor structures 70 are symmetrically arranged on both sides of the driving device 60 along the length direction. In this way, the weights of the telescopic assembly 50 supported and dispersed by the two scissor structures 70 are basically the same, improving the stability of the telescopic assembly 50 during the lifting process and making it not easy to tilt or shake during the lifting process of the telescopic assembly 50.

[0117] In some possible implementation manners of the embodiments of the present application, referring to Figure 3 、 Figure 6 and Figure 7 , an oil port 524 is formed at the bottom of the telescopic assembly 50, and the oil port 524 is communicated with the smoke inlet passage 501.

[0118] Referring to Figure 1 、 Figure 2 and Figure 4 , the range hood further includes an oil cup 80. The oil cup 80 can be detachably arranged at the bottom of the telescopic assembly 50, and the inner cavity of the oil cup 80 is correspondingly communicated with the oil port 524.

[0119] The oil droplets adhering to the inner wall of the smoke inlet passage 501 move downward to the oil port 524 and flow downward from the oil port 524 into the oil cup 80, and the oil cup 80 collects the oil liquid.

[0120] The oil cup 80 is detachably connected to the telescopic assembly 50. Exemplarily, the oil cup 80 can be hung or connected to the telescopic frame 520 through fastening bolts, so as to facilitate the removal of the oil cup 80 and further facilitate the cleaning of the oil liquid in the oil cup 80.

[0121] In some possible implementation manners of the embodiments of the present application, referring to Figures 1 - 6 , the range hood may further include a flap 90. The flap 90 is rotatably arranged at the bottom of the housing 20 to open the first smoke suction port 201 (refer to Figures 1 - 4 ) or block the first smoke suction port 201 (refer to Figure 5 ).

[0122] Referring to Figure 5, when the telescopic component 50 is hidden inside the housing 20 and the flap 90 blocks the first smoke suction port 201, the bottom of the oil cup 80, the flap 90 and the bottom of the housing 20 are flush with each other to improve the decorative effect of the range hood.

[0123] In summary, the range hood of the embodiment of the present application includes a main box body 10, a housing 20 and a lifting mechanism 40; the housing 20 is arranged at the bottom of the main box body 10, the housing 20 is configured with a first smoke suction port 201, the first smoke suction port 201 is communicated with the inner cavity of the main box body 10, and the first smoke suction port 201 is used to face the cooking appliance; the lifting mechanism 40 is arranged at the rear end of the housing 20, and the lifting mechanism 40 includes a telescopic component 50, a driving device 60 and a scissor structure 70; the telescopic component 50 has a smoke inlet passage 501, and the smoke inlet passage 501 is communicated with the inner cavity of the main box body 10; a second smoke suction port 521 communicated with the smoke inlet passage 501 is configured on the front side of the telescopic component 50, and at least part of the telescopic component 50 is telescopically arranged relative to the housing 20 in the vertical direction Z so that the second smoke suction port 521 moves below the housing 20 or is hidden inside the housing 20; two ends in the telescopic direction of the scissor structure 70 are respectively hinged to the housing 20 and the telescopic component 50; the driving device 60 is in transmission connection with the telescopic component 50 and drives the telescopic component 50 to move in the vertical direction Z. Through the above arrangement, the telescopic component 50 with the second smoke suction port 521 is arranged at the rear end of the housing 20 to suck gases such as oil fume between the first smoke suction port 201 of the housing 20 and the cooking appliance, so as to reduce the amount of gases such as oil fume between the first smoke suction port 201 and the cooking appliance diffusing around, and improve the suction efficiency of the range hood for gases such as oil fume.

[0124] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some 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. An oil fume purifier, characterized in that, Comprising: Main box body; A housing, disposed at the bottom of the main box body, the housing is configured with a first smoking port, the first smoking port is communicated with the inner cavity of the main box body, and the first smoking port is used to face the cooking appliance; A lifting mechanism, disposed at the rear end of the housing, the lifting mechanism includes a telescopic assembly, a driving device and a scissor structure; the telescopic assembly has a smoke inlet channel, and the smoke inlet channel is communicated with the inner cavity of the main box body; a second smoking port communicated with the smoke inlet channel is configured on the front side of the telescopic assembly, and at least a part of the telescopic assembly is telescopically arranged relative to the housing in the vertical direction so that the second smoking port moves below the housing or is hidden in the housing; two ends of the scissor structure in the telescopic direction are respectively hinged to the housing and the telescopic assembly; the driving device is in transmission connection with the telescopic assembly and drives the telescopic assembly to move in the vertical direction.

2. The range hood according to claim 1, characterized in that, The telescopic assembly includes a first assembly and a telescopic frame; The first assembly is fixedly disposed on the housing, and the first assembly is configured to form a first smoke inlet cavity; The telescopic frame is telescopically arranged on the first assembly, the telescopic frame is in transmission connection with the driving device, and the telescopic frame is hinged to the bottom end of the scissor structure; the telescopic frame is configured with the second smoking port and a second smoke inlet cavity, the second smoking port is communicated with the second smoke inlet cavity, and the second smoke inlet cavity is communicated with the first smoke inlet cavity to form the smoke inlet channel.

3. The range hood according to claim 2, characterized in that, The telescopic assembly further includes a second assembly, the second assembly is telescopically arranged on the first assembly, and the telescopic frame is telescopically arranged on the second assembly; The second assembly is configured with a third smoke inlet cavity, the third smoke inlet cavity is respectively communicated with the first smoke inlet cavity and the second smoke inlet cavity, and the smoke inlet channel includes the first smoke inlet cavity, the second smoke inlet cavity and the third smoke inlet cavity.

4. The range hood according to claim 3, wherein, The scissor structure includes a first cross bar and a second cross bar; The first cross bar includes a first rod and a second rod which are hinged to each other, the tops of the first rod and the second rod are both hinged to the housing, one of the first rod and the second rod is slidably arranged relative to the housing in the length direction of the range hood, and the bottoms of the first rod and the second rod are both hinged to the second assembly; The second cross bar includes a third rod and a fourth rod which are hinged to each other, the tops of the third rod and the fourth rod are respectively hinged to the first rod and the second rod, the bottoms of the third rod and the fourth rod are both hinged to the telescopic frame, and one of the third rod and the fourth rod is slidably arranged relative to the telescopic frame in the length direction of the range hood.

5. The range hood according to claim 3, characterized in that, The first assembly includes a first frame body and a first smoke inlet pipe; the first frame body is fixedly disposed on the housing, the first smoke inlet pipe is disposed on the first frame body, and the first smoke inlet pipe has the first smoke inlet cavity; The second component includes a second frame body and a second smoke inlet pipe; the second frame body is telescopically arranged on the first frame body, the second smoke inlet pipe is arranged on the second frame body, the second smoke inlet pipe has the third smoke inlet cavity, and the second smoke inlet pipe and the first smoke inlet pipe are nested.

6. The range hood according to claim 5, wherein, The first frame body is configured with a first installation opening, and the first smoke inlet pipe is inserted into the first installation opening; The second frame body is configured with a second installation opening, the second smoke inlet pipe is inserted into the second installation opening, and the second smoke inlet pipe and the first smoke inlet pipe are nested; The telescopic frame is configured with a third installation opening, and the second smoke inlet pipe is telescopically arranged in the third installation opening.

7. The range hood according to claim 5, characterized in that, The scissor structure is respectively hinged to the first frame body and the second frame body.

8. The range hood according to any one of claims 1-7, characterized in that, The driving device is connected to the middle part of the telescopic component along the length direction of the range hood; There are two scissor structures, and the two scissor structures are symmetrically arranged on both sides of the driving device along the length direction.

9. The range hood according to any one of claims 1-7, characterized in that, The bottom of the telescopic component is configured with an oil port, and the oil port is communicated with the smoke inlet channel; The range hood further includes an oil cup, the oil cup is detachably arranged at the bottom of the telescopic component, and the inner cavity of the oil cup is correspondingly communicated with the oil port.

10. The range hood according to claim 9, characterized in that, The range hood further includes a flap, the flap is rotatably arranged at the bottom of the housing to open or block the first smoking port; The telescopic component is hidden in the housing, and when the flap blocks the first smoking port, the bottom of the oil cup, the flap and the bottom of the housing are flush.

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