Range hood

Abstract

The present application relates to the technical field of range hood, and provides a range hood, which comprises a machine body, a first air inlet and a second air inlet are constructed in the machine body, a guide plate assembly, a first guide plate is hinged at the first air inlet and a second guide plate is hinged at the second air inlet, a transmission assembly, a first transmission component and a second transmission component are arranged at intervals, the first transmission component is connected to the first guide plate, the second transmission component is connected to the second guide plate, and a driving assembly is connected to at least one of the first transmission component and the second transmission component. The transmission assembly can be connected to the driving assembly with different structural forms, the structure of the transmission assembly does not change when the structural form of the driving assembly changes, which helps to realize the standardization and serialization of the product and reduces the cost of the mold.

Description

Technical Field

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

[0002] With the improvement of living standards, range hoods have become an indispensable kitchen appliance in modern homes. Common range hoods have one or two air inlets, each equipped with a baffle plate to control the airflow. In related technologies, for range hoods with two air inlets, two motors can be used to drive different baffle plates, or a single motor can drive both baffle plates. Using two motors results in a higher cost; using a single motor leads to a more complex transmission assembly structure, making product standardization and serialization difficult. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in related technologies. To this end, this invention proposes a range hood in which a drive assembly is connected to at least one of a first transmission component and a second transmission component. When the structural form of the drive assembly changes, the structure of the transmission component can remain unchanged, which helps to achieve product standardization and serialization, and reduces mold costs.

[0004] An embodiment of the present invention provides a range hood, comprising:

[0005] The body has a first air inlet and a second air inlet;

[0006] The air deflector assembly includes a first air deflector hinged at the first air inlet and a second air deflector hinged at the second air inlet;

[0007] The transmission assembly includes a first transmission component and a second transmission component spaced apart, wherein the first transmission component is connected to the first guide plate and the second transmission component is connected to the second guide plate;

[0008] A drive component is connected to at least one of the first transmission component and the second transmission component.

[0009] According to one embodiment of the present invention, the transmission assembly further includes a mounting base, the first transmission component includes a first drive rod and a first crank arm, the first drive rod is hinged to the mounting base, and the two ends of the first crank arm are respectively hinged to the first drive rod and the first guide plate, the second transmission component includes a second drive rod and a second crank arm, the second drive rod is hinged to the mounting base, and the two ends of the second crank arm are respectively hinged to the second drive rod and the second guide plate.

[0010] According to one embodiment of the present invention, the drive assembly includes a drive motor connected to one of the first drive rod and the second drive rod, and the transmission assembly further includes an intermediate connecting rod, the two ends of which are respectively hinged to the first drive rod and the second drive rod.

[0011] According to one embodiment of the present invention, the drive assembly includes two drive motors, which are respectively connected to the first drive rod and the second drive rod.

[0012] According to one embodiment of the present invention, a limiting member is provided on the mounting base, the limiting member being adapted to limit the stroke of the first driving rod or the second driving rod.

[0013] According to one embodiment of the present invention, a rotating seat assembly is provided between the first guide plate and the second guide plate, and the rotating seat assembly is connected to the body.

[0014] According to one embodiment of the present invention, the rotating seat assembly includes a pin, a first rotating bracket and a second rotating bracket rotatably connected to the pin, the first rotating bracket being connected to the first guide plate and the second rotating bracket being connected to the second guide plate.

[0015] According to one embodiment of the present invention, the rotating seat assembly further includes a mounting base connected to the body.

[0016] According to one embodiment of the present invention, a smoke collection chamber is formed at the bottom of the body, and the first air inlet and the second air inlet are disposed in the smoke collection chamber. The size of the smoke collection chamber gradually increases in the direction away from the first air inlet and the second air inlet.

[0017] According to one embodiment of the present invention, the first air inlet and the second air inlet are symmetrically arranged along the center of the smoke collection chamber, and both the first air inlet and the second air inlet are inclined outward.

[0018] The above-described one or more technical solutions in the embodiments of the present invention have at least one of the following technical effects:

[0019] This invention provides a range hood, including a body, a baffle assembly, a transmission assembly, and a drive assembly. The body has a first air inlet and a second air inlet. The baffle assembly includes a first baffle and a second baffle, with the first baffle hinged to the first air inlet and the second baffle hinged to the second air inlet. The baffle assembly can switch between blocking and avoiding the first and second air inlets. The transmission assembly includes a first transmission component and a second transmission component, with the first transmission component connected to the first baffle and the second transmission component connected to the second baffle. The drive assembly is connected to at least one of the first and second transmission components. The transmission assembly can be connected to drive assemblies with different structural forms. When the structure of the drive assembly changes, the structure of the transmission assembly can remain unchanged, which helps to achieve product standardization and serialization, and reduces mold costs.

[0020] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 The three-dimensional range hood provided in the embodiment of the present invention Figure 1 ;

[0023] Figure 2 The three-dimensional range hood provided in the embodiment of the present invention Figure 2 ;

[0024] Figure 3 This is a three-dimensional representation of the guide vane assembly, transmission assembly, and drive assembly provided in the embodiments of the present invention. Figure 1 ;

[0025] Figure 4 This is a three-dimensional representation of the guide vane assembly, transmission assembly, and drive assembly provided in the embodiments of the present invention. Figure 2 ;

[0026] Figure 5 This is a three-dimensional representation of the guide vane assembly, transmission assembly, and drive assembly provided in the embodiments of the present invention. Figure 3 ;

[0027] Figure 6 This is a perspective view of the guide vane assembly, transmission assembly, drive assembly, and smoke collection chamber provided in the embodiments of the present invention;

[0028] Figure 7 This is a perspective view of the rotating seat assembly provided in an embodiment of the present invention.

[0029] Figure label:

[0030] 10. Body; 11. First air inlet; 12. Second air inlet; 13. Smoke collection chamber; 20. Guide plate assembly; 21. First guide plate; 22. Second guide plate; 23. Panel connecting bracket; 24. Panel rotating bracket; 30. Transmission assembly; 31. First transmission component; 311. First drive rod; 312. First crank arm; 32. Second drive component; 321. Second drive rod; 322. Second crank arm; 33. Mounting base; 34. Intermediate connecting rod; 35. Limiting component; 40. Drive assembly; 50. Rotating seat assembly; 51. Pin; 52. First rotating bracket; 53. Second rotating bracket; 54. Mounting base. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the invention clearer, the technical solutions of the invention will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the invention, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0032] In the description of the embodiments of the present invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention based on the specific circumstances.

[0034] In embodiments of the present invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0035] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0036] In related technologies, for range hoods with two air inlets, two motors can be used to drive different guide vanes, or a single motor can be used to drive both guide vanes. Using two motors results in a higher cost for the range hood; using a single motor leads to a more complex transmission assembly structure, making product standardization and serialization difficult.

[0037] According to an embodiment of the present invention, a range hood is provided. Please refer to [link / reference]. Figures 1 to 7 It includes a body 10, a baffle assembly 20, a transmission assembly 30, and a drive assembly 40.

[0038] The range hood body 10 is equipped with an air extraction device and an air duct for exhausting fumes. The structure of the air extraction device and the air duct can be designed as needed, as long as the fumes can be exhausted outdoors. There are no restrictions here.

[0039] The body 10 has a first air inlet 11 and a second air inlet 12. The oil fumes are discharged outdoors along the first air inlet 11 and the second air inlet 12.

[0040] In one embodiment, the first air inlet 11 and the second air inlet 12 can be a single unit, divided into two different areas.

[0041] The deflector assembly 20 includes a first deflector 21 and a second deflector 22.

[0042] The first guide plate 21 is hinged to the first air inlet 11. When the first guide plate 21 rotates relative to the first air inlet 11, it can avoid or block the first air inlet 11.

[0043] The second guide plate 22 is hinged to the second air inlet 12. When the second guide plate 22 rotates relative to the second air inlet 12, it can avoid or block the second air inlet 12.

[0044] The transmission assembly 30 includes a first transmission component 31 and a second transmission component 32, which are spaced apart.

[0045] The first transmission component 31 is connected to the first guide plate 21, which can cause the first guide plate 21 to rotate relative to the first air inlet 11.

[0046] The second transmission component 32 is connected to the second guide plate 22, which can cause the second guide plate 22 to rotate relative to the second air inlet 12.

[0047] The drive assembly 40 provides power to the transmission assembly 30 and is connected to at least one of the first transmission component 31 and the second transmission component 32.

[0048] The transmission component 30 can be connected to the drive component 40 with different structural forms. When the structural form of the drive component 40 changes, the structure of the transmission component 30 can remain unchanged, which helps to achieve product standardization and serialization and reduces the cost of molds.

[0049] When the drive assembly 40 includes a power source, the drive assembly 40 is connected to either the first transmission component 31 or the second transmission component 32.

[0050] When the first transmission component 31 moves, the second transmission component 32 can move synchronously based on the transmission assembly 30, which can make the first guide plate 21 and the second guide plate 22 move synchronously.

[0051] When the drive assembly 40 includes two power sources, the drive assembly 40 is connected to the first transmission component 31 and the second transmission component 32 respectively.

[0052] The drive assembly 40 can make the first guide plate 21 and the second guide plate 22 move synchronously, or it can control the first guide plate 21 and the second guide plate 22 to move separately.

[0053] As can be seen from the above, the transmission component 30 provided in the embodiments of the present invention can be applied to drive components 40 with different structural forms. When the structural form of the drive component 40 changes, the structure of the transmission component 30 does not change, which helps to achieve product standardization and serialization and reduces the cost of molds.

[0054] According to one embodiment of the present invention, the transmission assembly 30 further includes a mounting base 33, and the first transmission component 31 and the second transmission component 32 are both rotatably connected to the mounting base 33.

[0055] The first transmission component 31 includes a first drive rod 311 and a first crank arm 312. The first drive rod 311 is hinged to the mounting base 33 and can rotate along the mounting base 33. The two ends of the first crank arm 312 are respectively hinged to the first drive rod 311 and the first guide plate 21. When the first drive rod 311 rotates, it can drive the first guide plate 21 to move.

[0056] The second transmission component 32 includes a second drive rod 321 and a second crank arm 322. The second drive rod 321 is hinged to the mounting base 33 and can rotate along the mounting base 33. The two ends of the second crank arm 322 are respectively hinged to the second drive rod 321 and the second guide plate 22. When the second drive rod 321 rotates, it can drive the second guide plate 22 to move.

[0057] When the first air inlet 11 and the second air inlet 12 are symmetrically arranged, the swing amplitude of the first curved arm 312 and the second curved arm 322 is the same, which can maintain the symmetry of the range hood.

[0058] The first guide plate 21 is driven by the first crank arm 312, and the second guide plate 22 is driven by the second crank arm 322. In order to maintain the positional relationship between the first guide plate 21 and the first crank arm 312 and the positional relationship between the second guide plate 22 and the second crank arm 322, a panel connecting bracket 23 is provided on both the first guide plate 21 and the second guide plate 22.

[0059] The panel connection bracket 23 includes a panel connection part and a hinge part. The panel connection part is connected to the first guide plate 21 or the second guide plate 22 by screws or adhesive layer, and the hinge part is rotatably connected to the first crank arm 312 or the second crank arm 322.

[0060] Meanwhile, the first guide plate 21 is hinged to the first air inlet 11, the second guide plate 22 is hinged to the second air inlet 12, and a panel rotation bracket 24 is also provided on the first guide plate 21 and the second guide plate 22.

[0061] The panel connecting bracket 23 and the panel rotating bracket 24 work together to enable the first guide plate 21 or the second guide plate 22 to move stably.

[0062] The transmission component 30 can be adapted to different drive components 40. When the structure of the drive component 40 changes, the structure of the transmission component 30 can remain unchanged.

[0063] According to one embodiment of the present invention, the drive assembly 40 includes a drive motor connected to one of the first drive rod 311 and the second drive rod 321.

[0064] The transmission assembly 30 also includes an intermediate connecting rod 34, the two ends of which are hinged to the first driving rod 311 and the second driving rod 321, respectively. The intermediate connecting rod 34 is located on the same side of the first driving rod 311 and the second driving rod 321. When the first driving rod 311 rotates, the second driving rod 321 rotates in the same direction.

[0065] The drive motor is connected to the first drive rod 311 or the second drive rod 321, which can make the first guide plate 21 and the second guide plate 22 move synchronously.

[0066] In another embodiment, the drive assembly 40 includes two drive motors, which are respectively connected to the first drive rod 311 and the second drive rod 321.

[0067] When the two drive motors move synchronously, the first guide plate 21 and the second guide plate 22 can open or close synchronously.

[0068] When the two drive motors move asynchronously, the first guide plate 21 and the second guide plate 22 can be opened or closed respectively to adapt to different usage environments.

[0069] When the first drive rod 311 and the second drive rod 321 rotate, the angle of rotation determines the displacement of the first guide plate 21 and the second guide plate 22.

[0070] According to one embodiment of the present invention, a limiting member 35 is provided on the mounting base 33, and the limiting member 35 can limit the stroke of the first driving rod 311 or the second driving rod 321.

[0071] When the limiting member 35 is located near the first active rod 311, the maximum rotational stroke of the first active rod 311 is determined, and the first guide plate 21 will not be squeezed or contacted with the body 10 during the movement.

[0072] When the limiting member 35 is located near the second active rod 321, the maximum rotational stroke of the second active rod 321 is determined, and the second guide plate 22 will not be squeezed or contacted with the body 10 during the movement.

[0073] It is understandable that multiple limiting elements 35 can be provided on the mounting base 33, and are located near the first driving rod 311 and the second driving rod 321.

[0074] The first guide plate 21 is disposed at the first air inlet 11, and the second guide plate 22 is disposed at the second air inlet 12. The first guide plate 21 blocks or avoids the first air inlet 11 during rotation, and the second guide plate 22 blocks or avoids the second air inlet 12 during rotation.

[0075] According to one embodiment of the present invention, a rotating seat assembly 50 is provided between the first guide plate 21 and the second guide plate 22.

[0076] The first guide plate 21 and the second guide plate 22 can rotate along the rotating seat assembly 50, thereby changing the relative angle between them and the body 10.

[0077] The rotating seat assembly 50 is mounted on the body 10. When the first guide plate 21 and the second guide plate 22 rotate, they can maintain their relative positions with the first air inlet 11 and the second air inlet 12.

[0078] In one embodiment, the rotating seat assembly 50 includes a pin 51, a first rotating bracket 52, and a second rotating bracket 53.

[0079] The first rotating bracket 52 and the second rotating bracket 53 are symmetrically arranged and are both rotatably connected to the pin 51. The first rotating bracket 52 is connected to the first guide plate 21, and the second rotating bracket 53 is connected to the second guide plate 22. The first guide plate 21 and the second guide plate 22 can rotate around the pin 51.

[0080] In one embodiment, the rotating seat assembly 50 further includes a mounting base 54 connected to the body 10, which enables the first guide plate 21 and the second guide plate 22 to be aligned with the positions of the first air inlet 11 and the second air inlet 12, thereby improving the stability of the structure.

[0081] In the kitchen, cooking fumes rise due to temperature, and during this process, they diffuse, increasing the area covered by the fumes.

[0082] According to one embodiment of the present invention, a smoke collection chamber 13 is formed at the bottom of the body 10, and a first air inlet 11 and a second air inlet 12 are disposed in the smoke collection chamber 13.

[0083] The size of the smoke collection chamber 13 gradually increases along the direction away from the first air inlet 11 and the second air inlet 12, forming a trumpet-shaped structure.

[0084] The smoke collection chamber 13 has a large area, which can cover the rising oil fumes and cause the oil fumes to gather at the first air inlet 11 and the second air inlet 12.

[0085] The inner wall of the smoke collection chamber 13 is inclined, so the resistance is small when the oil fumes flow in the smoke collection chamber 13.

[0086] In the range hood provided in this embodiment of the invention, the first guide plate 21 is hinged to the first air inlet 11, and the second guide plate 22 is hinged to the second air inlet 12. When the angle of the first guide plate 21 and the second guide plate 22 relative to the body 10 is changed, the first air inlet 11 and the second air inlet 12 can be blocked or avoided.

[0087] According to one embodiment of the present invention, the first air inlet 11 and the second air inlet 12 are symmetrically arranged along the center of the smoke collection chamber 13, and the first air inlet 11 and the second air inlet 12 are inclined to both sides.

[0088] When the first guide plate 21 is engaged with the first air inlet 11, the first guide plate 21 is located inside the smoke collection chamber 13 and does not extend to the outside of the smoke collection chamber 13. When the first guide plate 21 is open relative to the first air inlet 11, there is an angle between the first guide plate 21 and the first air inlet 11.

[0089] If the first air inlet 11 is set horizontally, the end of the first guide plate 21 away from the second guide plate 22 extends outward to the outside of the smoke collection chamber 13.

[0090] When the first air inlet 11 is tilted to one side, even if there is an angle between the first guide plate 21 and the first air inlet 11, the end of the first guide plate 21 away from the second guide plate 22 will not extend to the outside of the smoke collection chamber 13.

[0091] The first air inlet 11 and the second air inlet 12 are tilted to the sides, which can prevent the first guide plate 21 and the second guide plate 22 from extending to the outside of the smoke collection chamber 13, avoid contact with users, and increase the overall aesthetics of the range hood.

[0092] In one embodiment, the rotational stroke of the drive assembly 40 is between 43° and 47°, and the rotational stroke of the first guide plate 21 and the second guide plate 22 is between 8° and 11°.

[0093] When the first guide plate 21 is open relative to the first air inlet 11 and the second guide plate 22 is open relative to the second air inlet 12, the included angle between the first guide plate 21 and the second guide plate 22 is between 175° and 180°.

[0094] In summary, the range hood provided by this invention includes a body, a baffle assembly, a transmission assembly, and a drive assembly. The body has a first air inlet and a second air inlet. The baffle assembly includes a first baffle and a second baffle, with the first baffle hinged to the first air inlet and the second baffle hinged to the second air inlet. The baffle assembly can switch between blocking and avoiding the first and second air inlets. The transmission assembly includes a first transmission component and a second transmission component, with the first transmission component connected to the first baffle and the second transmission component connected to the second baffle. The drive assembly is connected to at least one of the first and second transmission components. The transmission assembly can be connected to drive assemblies with different structural forms. When the structure of the drive assembly changes, the structure of the transmission assembly can remain unchanged, which helps to achieve product standardization and serialization, and reduces mold costs.

[0095] When the drive assembly includes a power source, the drive assembly is connected to either the first transmission component or the second transmission component.

[0096] When the first transmission component moves, the second transmission component can move synchronously based on the internal structure of the transmission assembly, which can make the first guide plate and the second guide plate move synchronously.

[0097] When the drive assembly includes two power sources, the drive assembly is connected to the first transmission component and the second transmission component respectively.

[0098] The drive assembly can make the first and second air deflectors move synchronously, or it can control the first and second air deflectors to move separately.

[0099] When a limiting element is provided on the mounting base, the limiting element can limit the travel of the first or second driving rod.

[0100] When the limiting component is located near the first active rod, the maximum rotational stroke of the first active rod is determined, and the first guide plate will not be squeezed or collided with the machine body during the movement.

[0101] When the limiting component is located near the second active rod, the maximum rotational stroke of the second active rod is determined, and the second guide plate will not be squeezed or collided with the machine body during the movement.

[0102] When the first transmission component includes a first drive rod and a first crank arm, the first crank arm may overlap with the first drive rod or the drive motor during rotation. In this case, a first clearance groove is provided on the first crank arm.

[0103] When the second transmission component includes a second drive rod and a second crank arm, the second crank arm may overlap with the second drive rod or the drive motor during rotation. In this case, a second clearance groove is provided on the second crank arm.

[0104] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A range hood, characterized in that, include: The body has a first air inlet and a second air inlet; The air deflector assembly includes a first air deflector hinged at the first air inlet and a second air deflector hinged at the second air inlet; The transmission assembly includes a first transmission component and a second transmission component spaced apart, wherein the first transmission component is connected to the first guide plate and the second transmission component is connected to the second guide plate; A drive component, connected to at least one of the first transmission component and the second transmission component; A rotating base assembly is provided between the first guide plate and the second guide plate, and the rotating base assembly is connected to the body; The bottom of the body has a smoke collection chamber, the first air inlet and the second air inlet are disposed in the smoke collection chamber, the size of the smoke collection chamber gradually increases in the direction away from the first air inlet and the second air inlet, and the inner wall of the smoke collection chamber is inclined. The first air inlet and the second air inlet are symmetrically arranged along the center of the smoke collection chamber, and both the first air inlet and the second air inlet are inclined outwards; When the first guide plate is engaged with the first air inlet, the first guide plate is located inside the smoke collection chamber; when the first air inlet is tilted to one side, the first guide plate is open relative to the first air inlet, and the end of the first guide plate away from the second guide plate does not extend to the outside of the smoke collection chamber; when the second guide plate is engaged with the second air inlet, the second guide plate is located inside the smoke collection chamber; when the second air inlet is tilted to one side, the second guide plate is open relative to the second air inlet, and the end of the second guide plate away from the first guide plate does not extend to the outside of the smoke collection chamber.

2. The range hood according to claim 1, characterized in that, The transmission assembly further includes a mounting base. The first transmission component includes a first drive rod and a first crank arm. The first drive rod is hinged to the mounting base, and the two ends of the first crank arm are respectively hinged to the first drive rod and the first guide plate. The second transmission component includes a second drive rod and a second crank arm. The second drive rod is hinged to the mounting base, and the two ends of the second crank arm are respectively hinged to the second drive rod and the second guide plate.

3. The range hood according to claim 2, characterized in that, The drive assembly includes a drive motor connected to one of the first drive rod and the second drive rod. The transmission assembly also includes an intermediate connecting rod, the two ends of which are respectively hinged to the first drive rod and the second drive rod.

4. The range hood according to claim 2, characterized in that, The drive assembly includes two drive motors, which are respectively connected to the first drive rod and the second drive rod.

5. The range hood according to claim 2, characterized in that, The mounting base is provided with a limiting member, which is adapted to limit the stroke of the first or second driving rod.

6. The range hood according to claim 1, characterized in that, The rotating seat assembly includes a pin, a first rotating bracket and a second rotating bracket rotatably connected to the pin, the first rotating bracket being connected to the first guide plate and the second rotating bracket being connected to the second guide plate.

7. The range hood according to claim 6, characterized in that, The rotating seat assembly also includes a mounting base connected to the body.

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