Range hood

Abstract

The present application relates to the technical field of household appliances, and provides a range hood, which comprises a machine body configured with an air inlet, a panel configured with a first connecting part and a second connecting part arranged at intervals, and an opening and closing mechanism comprising a first moving part and a second moving part, wherein the first moving part is rotationally connected to the first connecting part, the second moving part is connected to the second connecting part, and the first moving part and the second moving part switch the panel between a folded state and an unfolded state. In the unfolded state, the first moving part rotates the panel by a first angle, and the second moving part rotates the panel around the first connecting part by a second angle. When in use, switching the panel from the folded state to the unfolded state comprises two actions, the panel outside the air inlet can be unfolded at the air inlet, a larger width coverage is realized in a smaller movement space, and the air collection effect of the range hood is increased.

Description

Technical Field

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

[0002] In home life, range hoods treat the air in a specific space, keeping the indoor air fresh and thus improving the comfort of consumers. Also known as a range hood, it's a kitchen appliance that purifies the kitchen environment. Installed above the stove, it quickly removes waste from combustion and harmful fumes produced during cooking, expelling them outdoors. Simultaneously, it condenses and collects the fumes, reducing pollution, purifying the air, and providing safety features such as protection against toxic substances and explosions.

[0003] In related technologies, range hoods are positioned above the cooking appliances and are generally quite large. The opening and closing panels of range hoods are often driven by a linkage mechanism to achieve this. The size of the opening and closing panel corresponds to the area of ​​the range hood's air intake zone; limited by the size of the air intake zone, the size of the opening and closing panel is limited, thus preventing it from covering a large width when unfolded. Summary of the Invention

[0004] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a range hood in which a first moving component drives the panel to rotate by a first angle, aligning the panel other than the air inlet with the area above the air inlet; a second moving component drives the panel to rotate by a second angle around a first connecting portion, unfolding the panel at the air inlet, achieving a larger width of coverage within a smaller movement space, thus increasing the air collection effect of the range hood.

[0005] A range hood according to an embodiment of the present invention includes:

[0006] The body has an air inlet.

[0007] The panel is constructed with a first connecting part and a second connecting part spaced apart.

[0008] The opening and closing mechanism includes a first moving part and a second moving part. The first moving part is rotatably connected to the first connecting part, and the second moving part is connected to the second connecting part. The first moving part and the second moving part cause the panel to switch between a retracted state and an unfolded state.

[0009] In the retracted state, the panel is fastened to the body and the air inlet is closed;

[0010] In the unfolded state, the first moving component causes the panel to rotate by a first angle, and the second moving component causes the panel to rotate by a second angle around the first connecting portion.

[0011] According to one embodiment of the present invention, the opening and closing mechanism includes a bracket, a slide groove disposed on the bracket, and a drive rod. The drive rod includes a first end rotatably connected to the bracket and a second end rotatably connected to the first connecting portion, and the second connecting portion is slidably connected to the slide groove.

[0012] According to one embodiment of the present invention, there are two brackets, and the two brackets are symmetrically arranged on both sides of the panel. The two second connecting parts are connected by a synchronizing rod, and the two ends of the synchronizing rod are respectively slidably connected to the slide groove on the same side.

[0013] According to one embodiment of the present invention, the synchronizing rod is rotatably connected to the second connecting part via a bearing, a gear is sleeved on the synchronizing rod, and a rack is provided on the bracket along the extending direction of the slide groove, the rack meshing with the gear.

[0014] According to one embodiment of the present invention, an upper stop and a lower stop are provided on both sides of the drive rod on the bracket. The upper stop is used to restrict the panel to be in a retracted state, and the lower stop is used to restrict the panel to be in an unfolded state.

[0015] According to one embodiment of the present invention, the drive rod is connected to the bracket via a rotating shaft, and an anti-rotation structure is provided between the rotating shaft and the drive rod.

[0016] According to one embodiment of the present invention, a connecting plate is provided on the panel, and a first connecting hole and a second connecting hole are formed on the connecting plate, wherein the first connecting hole is the first connecting part and the second connecting hole is the second connecting part.

[0017] According to one embodiment of the present invention, the body is provided with a positioning groove, the outline of the panel is adapted to the positioning groove, and in the retracted state, the panel is fastened and connected to the positioning groove.

[0018] According to one embodiment of the present invention, the end of the panel is formed with a curved portion, which, in the unfolded state, is used to gather the air below the panel.

[0019] According to one embodiment of the present invention, a limiting step is provided at the position where the curved part and the body contact each other.

[0020] The above-described one or more technical solutions in the embodiments of the present invention have at least one of the following technical effects:

[0021] The range hood includes a body, a panel, and an opening / closing mechanism. The body has an air inlet for drawing in and purifying air. The panel has a first connecting part and a second connecting part spaced apart. The opening / closing mechanism includes a first moving part and a second moving part. The first moving part is rotatably connected to the first connecting part, allowing the panel to rotate by a first angle, moving the panel outside the air inlet above it. The second moving part is connected to the second connecting part, allowing the panel to rotate around the first connecting part by a second angle, unfolding the panel at the air inlet. In use, switching the panel from a retracted state to an unfolded state involves two actions, unfolding the panel outside the air inlet to achieve a wider coverage area within a smaller movement space, thus increasing the range hood's air-gathering effect.

[0022] 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

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0024] Figure 1 This is a perspective view of the range hood in its unfolded state according to an embodiment of the present invention;

[0025] Figure 2 This is a perspective view of the range hood in its retracted state according to an embodiment of the present invention;

[0026] Figure 3 This is a three-dimensional representation of the panel and opening / closing mechanism provided in the embodiments of the present invention. Figure 1 ;

[0027] Figure 4 This is a three-dimensional representation of the panel and opening / closing mechanism provided in the embodiments of the present invention. Figure 2 ;

[0028] Figure 5 The three-dimensional support provided in the embodiment of the present invention Figure 1 ;

[0029] Figure 6 The three-dimensional support provided in the embodiment of the present invention Figure 2 ;

[0030] Figure 7 The three-dimensional support provided in the embodiment of the present invention Figure 3 .

[0031] Figure label:

[0032] 1. Body; 10. Air inlet; 2. Panel; 20. Bending part; 21. First connecting part; 22. Second connecting part; 23. Limiting step; 3. Opening and closing mechanism; 31. First moving part; 32. Second moving part; 34. Bracket; 36. Rotating shaft; 37. Anti-rotation structure; 38. Drive device; 4. Connecting plate; 5. Synchronizing rod; 6. Bearing; 7. Gear; 8. Rack; 91. Upper stop; 92. Lower stop. Detailed Implementation

[0033] 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.

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] In related technologies, range hoods are positioned above the cooking appliances and are generally quite large. The opening and closing panels of range hoods are often driven by a linkage mechanism to achieve this. The size of the opening and closing panel corresponds to the area of ​​the range hood's air intake zone; limited by the size of the air intake zone, the size of the opening and closing panel is limited, thus preventing it from covering a large width when unfolded.

[0039] According to an embodiment of the present invention, a range hood is provided. Please refer to [link / reference]. Figures 1 to 7 It mainly includes the body 1, the panel 2, and the opening and closing mechanism 3.

[0040] The range hood includes a body 1, on which an air inlet 10 is constructed for extracting cooking fumes. The body 1 contains a device for filtering or decomposing toxic and harmful gases, which purifies the air drawn into the air inlet 10.

[0041] The air treated by the unit can be circulated indoors or directly discharged into the external environment. The treated air gives people a refreshing and comfortable feeling and will not pollute the environment.

[0042] Panel 2 is used to block the diffusion of air and guide the air to the air inlet 10. Taking a kitchen range hood as an example, panel 2 is used to block the diffusion of high-temperature oil fumes generated during cooking. It can draw the high-temperature oil fumes into the body 1 to keep the indoor air clean and fresh.

[0043] In related technologies, the range hood's panel 2 is installed at the air inlet 10, and the size of the panel 2 is adapted to the size of the air inlet 10. Given a fixed size for the air inlet 10, the size of the panel 2 is limited by the size of the air inlet 10, and cannot cover a large width range when unfolded.

[0044] The range hood provided in this embodiment of the invention has a first connecting part 21 and a second connecting part 22 arranged at intervals on the panel 2. When the panel 2 is unfolded, it includes two actions, which can achieve a wider range of coverage and improve the air gathering effect of the panel 2.

[0045] When in use, driving the first connecting part 21 and the second connecting part 22 respectively can make the panel 2 perform two actions.

[0046] In one embodiment, the first connecting part 21 and the second connecting part 22 drive the panel 2 to move synchronously, achieving two different actions in one movement.

[0047] In another embodiment, the first connecting part 21 and the second connecting part 22 respectively drive the panel 2 to move, and the movement process realizes two different actions in sequence.

[0048] It should be noted that in the range hood provided in this embodiment of the invention, when the panel 2 is in the retracted state, the panel 2 includes not only the part corresponding to the air inlet 10, but also the part corresponding to the body 1. The size of the panel 2 is larger than the size of the air inlet 10. Through two different actions, the panel 2 corresponding to the body 1 is first moved to the air inlet 10, and then the panel 2 is unfolded at the air inlet 10.

[0049] The opening and closing mechanism 3 includes a first moving part 31 and a second moving part 32. The first moving part 31 is rotatably connected to the first connecting part 21, and the second moving part 32 is connected to the second connecting part 22.

[0050] In use, the first moving part 31 rotates, and the panel 2 moves with the first moving part 31. The part of the panel 2 that corresponds to the air inlet 10 rotates to above the air inlet 10. The second moving part 32 is connected to the second connecting part 22, which allows the panel 2 to rotate around the first connecting part 21, and the panel 2 unfolds at the air inlet 10.

[0051] When panel 2 is unfolded, panel 2 includes the area corresponding to air inlet 10 and the area corresponding to body 1, covering a wide range and providing better air gathering effect.

[0052] The first moving part 31 and the second moving part 32 can switch the panel 2 between a folded state and an unfolded state.

[0053] When folded up, panel 2 is fastened to body 1, and the position of air inlet 10 is closed.

[0054] In the unfolded state, panel 2 rotates by a first angle under the drive of the first moving component 31, and the area of ​​panel 2 corresponding to the body 1 moves to the position of the air inlet 10. At the same time, panel 2 rotates by a second angle around the first connecting part 21 under the drive of the second moving component 32, and panel 2 unfolds at the air inlet 10. The unfolded width is much larger than the width of the air inlet 10, so the covered area is larger and the air gathering effect is better.

[0055] The range hood provided in this embodiment of the invention has a panel 2 that is not limited by the size of the air inlet 10 when unfolded, which increases the width coverage range when gathering air and improves the air gathering effect.

[0056] In one embodiment, the air-gathering effect of panel 2 can be further improved without changing the size of the range hood.

[0057] In another embodiment, the air-gathering effect of the panel can be ensured without reducing the size of the range hood.

[0058] According to one embodiment of the present invention, a connecting plate 4 is provided on the panel 2, and the connecting plate 4 is provided with a first connecting hole and a second connecting hole. The first connecting hole is a first connecting part 21, and the second connecting hole is a second connecting part 22. The first connecting hole is rotatably connected to a first moving part 31, and the second connecting hole is connected to a second moving part 32.

[0059] In one embodiment, the connecting plate 4 is integrally formed with the panel 2, and the first connecting hole and the second connecting hole are spaced apart to serve the functions of the first connecting part 21 and the second connecting part 22.

[0060] In another embodiment, the panel 2 and the connecting plate 4 are provided with matching mounting mechanisms, and the connecting plate 4 and the panel 2 are detachably connected.

[0061] In use, the first moving part 31 drives the panel 2 through the first connecting hole to achieve the first rotation action, and the second moving part 32 drives the panel 2 through the second connecting hole to achieve the second rotation action.

[0062] The range hood provided in this embodiment of the invention has an opening and closing mechanism 3 including a first moving part 31 and a second moving part 32. The first moving part 31 and the second moving part 32 can drive the panel 2 to switch between a retracted state and an unfolded state.

[0063] According to one embodiment of the present invention, the opening and closing mechanism 3 includes a drive rod, a bracket 34, and a slide.

[0064] The drive rod is the first moving part 31. The drive rod includes a first end and a second end. The first end is rotatably connected to the bracket 34 and can rotate around the bracket 34. The second end is rotatably connected to the first connecting part 21.

[0065] The bracket 34 is also provided with a slide groove, which is the second moving part 32. The second connecting part 22 is slidably connected to the slide groove. The slide groove constrains the movement direction and movement distance of the second connecting part 22, and can drive the panel 2 to rotate around the first connecting part 21 when the drive rod rotates.

[0066] The principle behind panel 2 simultaneously generating the first and second rotational movements is as follows:

[0067] The drive rod is connected to the first connecting part 21. When the drive rod rotates, the first connecting part 21 rotates accordingly. The panel 2 achieves the first rotation action under the drive of the first connecting part 21, and the part of the panel 2 corresponding to the body 1 moves to the air inlet 10.

[0068] The position of the first connecting part 21 changes as the drive rod rotates, while the distance between the first connecting part 21 and the second connecting part 22 remains fixed. To maintain this distance, the second connecting part 22 moves along a slide groove. When the second connecting part 22 moves relative to the slide groove, it changes the angle between the panel 2 and the drive rod, causing the panel 2 to rotate around the first connecting part 21. During this second rotation, the panel 2 is in an unfolded state. The unfolded width of the panel 2 includes the area corresponding to the body 1 and the area corresponding to the air inlet 10, and is much larger than the size of the air inlet 10, resulting in a wider coverage area and better airflow control.

[0069] According to one embodiment of the present invention, there are two supports 34, which are symmetrically arranged on both sides of the panel 2 to provide stable support for the panel 2 and ensure that the panel 2 is in a balanced state when it is folded up or unfolded.

[0070] Both brackets 34 are equipped with sliding grooves and drive rods, forming a symmetrical opening and closing mechanism. The panel 2 has two sets of first connecting parts 21 and second connecting parts 22, which are connected by a synchronizing rod 5. The synchronizing rod 5 ensures that the drive rods on both sides are at the same rotation angle, thereby ensuring that both ends of the panel 2 rotate and unfold synchronously.

[0071] The two ends of the synchronizing rod 5 are slidably inserted into the slide groove on the same side. When the driving rod rotates, the slide groove is used to change the angle between the panel 2 and the driving rod to realize the second rotation action.

[0072] The range hood provided in this embodiment of the invention has a slidable connecting rod 5 to a sliding groove, which improves the balance of the panel 2 when it rotates.

[0073] According to one embodiment of the present invention, the synchronizing rod 5 is connected to the second connecting part 22 via a bearing 6 and can rotate along the center of the bearing 6. A gear 7 is sleeved on the synchronizing rod 5, and a rack 8 is provided on the bracket 34. The rack 8 is arranged along the extension direction of the slide groove, and the gear 7 meshes with the rack 8.

[0074] In use, the synchronizing rod 5 slides along the extension direction of the slide groove, and the gear 7 meshes with the rack 8. When the gear 7 rotates, it moves relative to the rack 8. The gear 7 and the rack 8 transform the sliding motion of the synchronizing rod 5 into a rolling motion, reducing the friction when the panel 2 unfolds or retracts, making the range hood more flexible in its movement, reducing frictional losses between structures, and reducing energy consumption when the panel 2 moves.

[0075] The range hood provided in this embodiment of the invention allows the panel 2 to switch between a retracted state and an extended state when the drive rod moves. In the retracted state, the panel 2 is fastened to the body 1, avoiding space occupation. In the extended state, the panel 2 has a wider coverage area and is at the optimal airflow angle.

[0076] According to one embodiment of the present invention, the bracket 34 is provided with an upper stop 91 and a lower stop 92, which are located on both sides of the drive rod.

[0077] When the drive rod rotates upward, panel 2 moves synchronously. When the drive rod contacts the upper stop 91, panel 2 is fastened to the body 1 and retracts onto the surface of the body 1. The upper stop 91 restricts the space for the drive rod to continue moving, keeping panel 2 in the retracted state.

[0078] When the drive rod rotates downwards, panel 2 moves synchronously. When the drive rod contacts the lower stop 92, it rotates by a first angle, and panel 2 rotates by the same first angle. Simultaneously, panel 2 rotates by a second angle under the constraint of the slide groove. The lower stop 92 restricts the space for the drive rod to continue moving, keeping panel 2 in its optimal unfolded state, at which point panel 2 provides better airflow.

[0079] The range hood provided in this embodiment of the invention has a drive rod rotatably connected to a bracket 34. When the drive rod rotates around the bracket 34, the panel 2 switches between a retracted state and an unfolded state.

[0080] According to one embodiment of the present invention, the drive rod is connected to the bracket 34 via a rotating shaft 36, and the rotating shaft 36 moves synchronously with the drive rod.

[0081] The rotating shaft 36 is directly connected to the drive rod. To prevent relative sliding between the two, an anti-rotation structure 37 is provided between the rotating shaft 36 and the drive rod.

[0082] In use, the anti-rotation structure 37 increases the rotational resistance between the rotating shaft 36 and the drive rod, preventing relative slippage between the two.

[0083] In one embodiment, the anti-rotation structure 37 includes a first groove disposed on the rotating shaft 36, a second groove disposed on the drive rod, and a pin. The first groove corresponds to the second groove, and the pin is inserted into the first groove and the second groove to prevent the first groove and the second groove from misaligning.

[0084] In another embodiment, a multi-faceted groove is provided at the position of the drive rod corresponding to the rotation shaft 36, and a multi-faceted block is formed on the rotation shaft 36. The multi-faceted block is inserted into the multi-faceted groove, which increases the frictional resistance between the drive rod and the rotation shaft 36.

[0085] It should be noted that the multi-faceted groove can be a rectangular groove, a hexagonal groove, etc., and the multi-faceted block can be a rectangular block, a hexagonal prism, etc.

[0086] Taking the rectangular slot and rectangular block as an example, the rectangular block is adapted to the rectangular slot on the drive rod, and the two are tightly connected, which avoids relative sliding between the drive rod and the rotating shaft 36, and increases the accuracy and stability of the panel 2 when rotating.

[0087] The range hood provided in this embodiment of the invention has a drive rod rotatably connected to a bracket 34. When the drive rod rotates around the bracket 34, the drive panel 2 switches between a retracted state and an extended state.

[0088] In one embodiment, the panel 2 can be switched between a retracted state and an unfolded state by manually rotating the drive lever or by directly moving the panel 2 by hand.

[0089] In another embodiment, a drive device 38 is mounted on the bracket 34, and the drive device 38 is connected to the drive rod via a transmission mechanism.

[0090] The drive device 38 drives the drive rod to rotate, and the drive rod drives the panel 2 to achieve the first rotation action through the first connecting part 21. The slide groove and the second connecting part 22 drive the panel 2 to achieve the second rotation action, and the panel 2 switches from the retracted state to the unfolded state.

[0091] The drive unit 38 drives the drive rod to rotate in the opposite direction, and the panel 2 switches from the unfolded state to the retracted state under the drive of the drive rod.

[0092] With the rotating shaft 36 mounted on the bracket 34, the drive device 38 is connected to the rotating shaft 36, and the drive rod moves with the rotating shaft 36.

[0093] The range hood provided in this embodiment of the invention has a panel 2 used to block the air from rising and guide the air to flow in the direction of the air inlet 10, thereby achieving the effect of gathering air.

[0094] According to one embodiment of the present invention, a curved portion 20 is formed at the end of the panel 2, and the curved portion 20 converges toward the side closer to the opening and closing mechanism 3.

[0095] In use, panel 2 unfolds under the action of opening and closing mechanism 3, and the curved part 20 bends downward. As air rises, it comes into contact with panel 2, and the curved part 20 blocks the upward flow of air, guiding the air into air inlet 10. The air enters the body 1 through air inlet 10, achieving purification and separation treatment.

[0096] In one embodiment, the panel 2 and the curved portion 20 have a streamlined structure, which reduces air resistance, facilitates airflow, and improves the air-gathering effect of the panel 2.

[0097] The range hood provided in this embodiment of the invention has a panel 2 that is fastened to the body 1 when it is in the retracted state, and at the same time, the air inlet 10 is also sealed.

[0098] According to one embodiment of the present invention, a positioning groove 11 is provided on the body 1, and the positioning groove 11 is adapted to the contour of the panel 2.

[0099] In the folded state, panel 2 is locked into the positioning groove 11. The positioning groove 11 helps panel 2 return to its initial position and increases the stability of panel 2 when switching positions.

[0100] In one embodiment, the depth of the positioning groove 11 is the same as the thickness of the panel 2. When the panel 2 is engaged with the positioning groove 11, the outer surface of the panel 2 is flush with the outer surface of the body 1, making the range hood look simpler and increasing its overall aesthetic appeal.

[0101] According to one embodiment of the present invention, a limiting step 23 is provided at the position where the curved part 20 contacts the body 1.

[0102] In the folded state, panel 2 is fastened to the outer surface of body 1. The limiting step 23 on the curved part 20 abuts against the limiting step 23 on body 1. The limiting step 23 can position the curved part 20 and prevent the curved part 20 and panel 2 from shaking.

[0103] In summary, the range hood provided in this embodiment of the invention includes a body, a panel, and an opening and closing mechanism. The body has an air inlet for drawing in and purifying air. The panel has a first connecting portion and a second connecting portion spaced apart. The opening and closing mechanism includes a first moving component and a second moving component. The first moving component is rotatably connected to the first connecting portion, allowing the panel to rotate by a first angle, moving the panel other than the air inlet above the air inlet. The second moving component is connected to the second connecting portion, allowing the panel to rotate around the first connecting portion by a second angle, unfolding the panel at the air inlet. In use, switching the panel from a retracted state to an unfolded state involves two actions, unfolding the panel other than the air inlet at the air inlet, achieving a larger coverage width within a smaller movement space, and increasing the air collection effect of the range hood.

[0104] With two supports, symmetrically arranged on both sides of the panel, the panel can remain balanced and stable when switching positions.

[0105] When a gear is installed on the synchronizing rod, a rack is installed on the bracket along the extension direction of the slide groove. The gear meshes with the rack, which can convert the sliding process of the synchronizing rod into a rolling process, reducing the frictional resistance when the panel position is switched.

[0106] When the unit has a positioning groove, the panel snaps into the groove when folded, allowing it to retract and return to its original position. Simultaneously, the panel's engagement with the positioning groove makes the range hood more streamlined and enhances its aesthetics.

[0107] When a curved section is provided at the end of the panel, the curved section facilitates airflow towards the air inlet, increasing the panel's air-gathering effect.

[0108] 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 an air inlet. The panel is constructed with a first connecting part and a second connecting part spaced apart. The opening and closing mechanism includes a first moving part and a second moving part. The first moving part is rotatably connected to the first connecting part, and the second moving part is connected to the second connecting part. The first moving part and the second moving part cause the panel to switch between a retracted state and an unfolded state. In the retracted state, the panel is fastened to the body and the air inlet is closed; In the unfolded state, the first moving component causes the panel to rotate by a first angle, and the second moving component causes the panel to rotate by a second angle around the first connecting portion. The opening and closing mechanism includes a bracket, a sliding groove disposed on the bracket, and a drive rod. The first moving component is the drive rod, and the second moving component is the sliding groove. The drive rod includes a first end rotatably connected to the bracket and a second end rotatably connected to the first connecting part. The second connecting part is slidably connected to the sliding groove.

2. The range hood according to claim 1, characterized in that, The number of brackets is two, and the two brackets are symmetrically arranged on both sides of the panel. The two second connecting parts are connected by a synchronizing rod, and the two ends of the synchronizing rod are respectively slidably connected to the slide groove on the same side.

3. The range hood according to claim 2, characterized in that, The synchronizing rod is rotatably connected to the second connecting part via a bearing. A gear is sleeved on the synchronizing rod, and a rack is provided on the bracket along the extension direction of the slide groove. The rack meshes with the gear.

4. The range hood according to claim 1, characterized in that, The bracket is provided with an upper stop and a lower stop on both sides of the drive rod. The upper stop is used to restrict the panel to be in a retracted state, and the lower stop is used to restrict the panel to be in an unfolded state.

5. The range hood according to claim 1, characterized in that, The drive rod is connected to the bracket via a rotating shaft, and an anti-rotation structure is provided between the rotating shaft and the drive rod.

6. The range hood according to claim 1, characterized in that, The panel is provided with a connecting plate, and the connecting plate is provided with a first connecting hole and a second connecting hole. The first connecting hole is the first connecting part, and the second connecting hole is the second connecting part.

7. The range hood according to claim 1, characterized in that, The body is provided with a positioning groove, and the outline of the panel is adapted to the positioning groove. In the retracted state, the panel is fastened and connected to the positioning groove.

8. The range hood according to any one of claims 1-7, characterized in that, The panel has a curved portion at its end, which, in the unfolded state, is used to gather the air below the panel.

9. The range hood according to claim 8, characterized in that, The curved section and the body are provided with matching limiting steps at the contact points.

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