Range hood with folding smoke gathering plate

Abstract

The range hood comprises a smoke collecting cavity, an opening and closing panel, the first folding smoke gathering plate and the second folding smoke gathering plate, the opening and closing panel covers an air inlet and is connected with a driving device, and the driving device drives the opening and closing panel to swing so as to open and close the air inlet; the first folding smoke gathering plate and the second folding smoke gathering plate are connected with the smoke collecting cavity and the opening and closing panel and move along with the opening and closing panel, the driving device comprises a driving module and a driven module, the driving module is connected with one side of the opening and closing panel, the driven module is connected with the other side of the opening and closing panel, the first folding smoke gathering plate is arranged close to the driving module, and the second folding smoke gathering plate is arranged close to the driving module. The second folding smoke gathering plate is arranged close to the driven module, a compensation mechanism is connected between the first folding smoke gathering plate and the smoke collecting cavity, and the compensation mechanism drives the first folding smoke gathering plate to move relative to the smoke collecting cavity after the first folding smoke gathering plate is completely unfolded so as to compensate the movement stroke of unfolding of the opening and closing panel; and the unfolding angle of the second folding smoke gathering device is consistent with the unfolding angle of the first folding smoke gathering device.

Description

Technical Field

[0001] The present invention relates to the technical field of range hoods, and in particular to a range hood with a foldable smoke collecting plate. Background Art

[0002] Existing side-suction range hoods mostly use a flap structure to collect smoke, which can prevent most of the smoke from escaping from the top, but cannot intercept the smoke escaping from the sides of the range hood, so the smoke collection effect is poor.

[0003] A patent document in China with application number 202410672628.X and publication date September 24, 2024, discloses a range hood, including a shell assembly and a smoke collecting mechanism, the shell assembly being provided with a smoke inlet chamber and an air inlet, the smoke collecting mechanism comprising: a flap assembly and two smoke collecting assemblies, the flap assembly being rotatably connected to the shell assembly for opening or closing the air inlet, the two smoke collecting assemblies being respectively arranged on the left and right sides of the air inlet and their fixed ends being rotatably connected to the left and right ends of the flap assembly, and the free ends being respectively movably passed through the air inlet and extending into the smoke inlet chamber, each smoke collecting assembly being capable of being folded or unfolded relative to the flap assembly.

[0004] The two smoke collecting plates of the range hood are respectively unfolded by independent power components, and the opening angles of the two smoke collecting plates cannot be guaranteed to be consistent, which will interfere with the smoke collecting mechanism from being unfolded to the maximum angle, resulting in a reduction in the smoke collecting area. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a range hood with a foldable smoke collecting plate. After the first foldable smoke collecting plate is fully unfolded, the compensation mechanism drives the first foldable smoke collecting plate to move relative to the smoke collecting chamber to compensate for the movement stroke of the opening and closing panel, so that the unfolding angle of the second foldable smoke collecting plate is consistent with the unfolding angle of the first foldable smoke collecting plate.

[0006] In order to solve the above technical problems, the technical solution used in the present invention is:

[0007] The range hood with a foldable smoke collecting plate described in the present invention includes a smoke collecting chamber, an opening and closing panel, a first foldable smoke collecting plate and a second foldable smoke collecting plate. The smoke collecting chamber is provided with an air inlet and a driving device. The opening and closing panel covers the air inlet and is connected to the driving device. The driving device drives the opening and closing panel to swing to open and close the air inlet. The first foldable smoke collecting plate and the second foldable smoke collecting plate are connected to the smoke collecting chamber and the opening and closing panel and follow the movement of the opening and closing panel. The driving device includes a driving module and a driven module. The driving module is connected to one side of the opening and closing panel, and the driven module is connected to the other side of the opening and closing panel. The first foldable smoke collecting plate is arranged close to the driving module, and the second foldable smoke collecting plate is arranged close to the driven module. A compensation mechanism is connected between the first foldable smoke collecting plate and the smoke collecting chamber. After the first foldable smoke collecting plate is fully unfolded, the compensation mechanism drives the first foldable smoke collecting plate to move relative to the smoke collecting chamber to compensate for the movement stroke of the opening and closing panel.

[0008] Preferably, the first foldable cigarette collecting plate is movably arranged on the compensation mechanism, and the first foldable cigarette collecting plate moves on the compensation mechanism to compensate for the swing stroke of the opening and closing panel.

[0009] Preferably, a mounting seat is provided on the smoke collecting chamber, and the compensation mechanism includes a limiting step screw and a reset member; a connecting hole is provided on the side of the first folding smoke collecting plate close to the smoke collecting chamber; the limiting step screw is fixedly connected to the mounting seat through the connecting hole, and the connecting hole is slidably arranged on the step of the limiting step screw, and a gasket is provided on the top of the limiting step screw, and the reset member is arranged between the gasket and the first folding smoke collecting plate.

[0010] Preferably, the first folding smoke collecting plate includes a base, a fixing frame, a first side panel and a second side panel hinged to each other, the first side panel is hinged to the base, the second side panel is hinged to the fixing frame, the base is connected to the smoke collecting chamber, and the fixing frame is connected to the opening and closing panel.

[0011] Preferably, a torsion spring is provided on the hinge column between the first side panel and the base, the first torsion arm of the torsion spring abuts against the lower surface of the base, and the second torsion arm of the torsion spring abuts against the wall of the first side panel away from the smoke collecting chamber. The torsion spring is used to drive the first side panel closer to the base.

[0012] Preferably, a slot is provided at one end of the base, the opening of the slot is arranged toward the smoke collecting chamber, and the end of the first torsion arm is accommodated in the slot.

[0013] Preferably, a limit block is provided on a side of the second side panel close to the first side panel, the limit block protruding outward from the side wall of the second side panel, and the limit block is used to abut against the first side panel to limit the expansion angle of the first side panel and the second side panel.

[0014] Preferably, the driving module includes a motor bracket, a driving motor, a driving rod, a driving rotating rod and a connecting rod; the motor bracket is fixed on the smoke collecting chamber, one end of the driving rotating rod is hinged to the motor bracket, and the other end of the driving rotating rod is fixedly connected to the opening and closing panel; the driving motor is fixed on the motor bracket, the output end of the driving motor is connected to one end of the driving rod, and the other end of the driving rod is hinged to the driving rotating rod through the connecting rod.

[0015] Preferably, the driven module includes a driven bracket and a driven rotating rod, the driven bracket is fixed on the smoke collecting chamber, one end of the driven rotating rod is hinged to the driven bracket, and the other end of the driven rotating rod is fixedly connected to the opening and closing panel.

[0016] Now, with respect to the prior art, the beneficial effects of the range hood with a foldable smoke collecting plate described in the present invention are mainly reflected in:

[0017] The first folding cigarette collecting plate and the second folding cigarette collecting plate move with the opening and closing panel, and the opening and closing panel is driven by a driving device. In this way, the first folding cigarette collecting plate, the second folding cigarette collecting plate and the opening and closing panel share a driving structure, and the first folding cigarette collecting plate and the second folding cigarette collecting plate are driven to be unfolded and folded through the swing of the opening and closing panel. The structure is simple and the reliability is good; the driving module and the driven module are respectively connected to the side edges of the opening and closing panel to improve the stability of the opening and closing panel movement.

[0018] The driven module is arranged away from the driving module to avoid the situation where the supporting force of the opening and closing panel close to the driven module is inconsistent with the supporting force of the opening and closing panel close to the driving module when the opening and closing panel is unfolded to the maximum angle, resulting in the first folding cigarette collecting plate being fully unfolded while the second folding cigarette collecting plate is not fully unfolded. When the first folding cigarette collecting plate is fully unfolded, the opening and closing panel unfolds to the limit angle, driving the first folding cigarette collecting plate to move relative to the smoke collecting chamber. The movement of the first folding cigarette collecting plate compensates for the movement stroke of the opening and closing panel that continues to unfold. By increasing the swing angle of the opening and closing panel, both the first and second folding cigarette collecting plates are fully unfolded, thereby ensuring that the unfolding angle of the second folding cigarette collecting plate is consistent with the unfolding angle of the first folding cigarette collecting plate. At the same time, the opening and closing panel is unfolded to the maximum angle, increasing the smoke collecting area between the opening and closing panel and the smoke collecting chamber.

[0019] The first foldable smoke collecting plate is movably arranged on the compensation mechanism. When the opening and closing panel is unfolded to the limit angle, the opening and closing panel is continuously driven to swing, which can drive the first foldable smoke collecting plate to move relative to the smoke collecting chamber. The structure is simple.

[0020] By setting a limiting step screw, the first folding cigarette collecting plate is connected to the smoke collecting chamber and a guide is provided for the movement of the first folding cigarette collecting plate; when the opening and closing panel is unfolded to the limiting angle, the opening and closing panel is driven to overcome the elastic force of the reset member and continue to swing, thereby driving the first folding cigarette collecting plate to move along the length direction of the limiting step screw, compensating for the movement stroke of the opening and closing panel that continues to unfold; when the opening and closing panel is closed, the opening and closing panel is driven to move closer to the smoke collecting chamber, the force of the first folding cigarette collecting plate on the reset member is reduced, and the first folding cigarette collecting plate is driven to reset under the action of the elastic force of the reset member.

[0021] The first folding smoke collecting plate is provided with a first side plate and a second side plate hinged to each other. The first folding smoke collecting plate has a large area when unfolded, which increases the smoke collecting area between the opening and closing panel and the smoke collecting chamber, thereby improving the smoking effect of the range hood.

[0022] A torsion spring is provided on the hinged column connecting the first side panel and the base. When the first foldable cigarette collecting plate is unfolded, the first side panel swings outward against the elastic force of the torsion spring. When the first foldable cigarette collecting plate is retracted, the first side panel folds toward the base under the elastic force of the torsion spring. When the first side panel is folded, the second side panel is moved closer. The torsion spring applies a force to the first foldable cigarette collecting plate toward the smoke collecting chamber, ensuring that the first foldable cigarette collecting plate is folded and retracted into the smoke collecting chamber. The end of the first torsion arm is accommodated in the slot to prevent the end of the first torsion arm from falling out of the base, thereby improving the stability of the cooperation between the torsion spring and the base.

[0023] By providing a limit block, the expansion angle of the first side panel and the second side panel is limited, so as to prevent the second side panel from rotating at an excessively large angle and folding in the opposite direction relative to the first side panel.

[0024] Compared with the prior art, the range hood with a foldable smoke collecting plate described in the present invention has a compensation mechanism that drives the first foldable smoke collecting plate to move relative to the smoke collecting chamber after the first foldable smoke collecting plate is fully unfolded to compensate for the movement stroke of the opening and closing panel. By increasing the swing angle of the opening and closing panel, both the first foldable smoke collecting plate and the second foldable smoke collecting plate can be fully unfolded, thereby ensuring that the unfolding angle of the second foldable smoke collecting plate is consistent with the unfolding angle of the first foldable smoke collecting plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of the preferred embodiments of the present invention shown in the accompanying drawings. The same reference numerals indicate the same parts throughout the accompanying drawings, and the drawings are not drawn to scale with actual size. The emphasis is on illustrating the subject matter of the present invention.

[0026] Figure 1 It is a three-dimensional schematic diagram of the present invention.

[0027] Figure 2 This is a three-dimensional schematic diagram of the present invention after removing the opening and closing panel.

[0028] Figure 3 This is a three-dimensional schematic diagram of the present invention after the opening and closing panel is unfolded.

[0029] Figure 4 This is a schematic diagram of the separation of the first foldable smoke collecting plate, the compensation mechanism and the range hood in the present invention.

[0030] Figure 5 for Figure 4 A magnified view of center.

[0031] Figure 6 for Figure 4 Magnified view of B.

[0032] Figure 7 This is a cross-sectional view of the present invention.

[0033] Figure 8 for Figure 7 Enlarged view of C in the middle.

[0034] Figure 9 This is a cross-sectional view of the first folding cigarette collecting plate after it moves on the compensation mechanism in the present invention.

[0035] Figure 10 for Figure 9 Enlarged view of D in the middle.

[0036] Figure 11 It is a three-dimensional schematic diagram of the connection between the driving device and the opening and closing panel in the present invention.

[0037] Figure 12 This is a schematic diagram showing that the first foldable cigarette collecting plate is fully unfolded and the second foldable cigarette collecting plate is fully unfolded.

[0038] Explanation of the accompanying numbers: smoke collecting chamber 1, air inlet 11, mounting base 12; opening and closing panel 2; first folding smoke collecting plate 3, connecting hole 30, base 31, slot 311, fixing frame 32, first side panel 33, groove 331, second side panel 34, limit block 35; second folding smoke collecting plate 4; driving device 5, driving module 51, motor bracket 511, driving motor 512, driving rod 513, driving rotating rod 514, connecting rod 515, driven module 52, driven bracket 521, driven rotating rod 522; compensation mechanism 6, limiting step screw 61, reset member 62, step 63, gasket 64; torsion spring 7, first torsion arm 71, second torsion arm 72. DETAILED DESCRIPTION

[0039] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it. However, the embodiments given do not limit the present invention. In this embodiment, it should be understood that the directions or positional relationships indicated by terms such as "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", and "outside" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention.

[0040] It should be noted that when an element is considered to be "connected" to another element, it may be directly connected to the other element and integrated therewith, or there may be an intermediate element. The terms "mounted," "one end," "the other end," and similar expressions used in this invention are for illustrative purposes only.

[0041] like Figure 1-12 As shown, a range hood with a foldable smoke collecting plate comprises a smoke collecting chamber 1, an opening and closing panel 2, a first foldable smoke collecting plate 3 and a second foldable smoke collecting plate 4. The smoke collecting chamber 1 is provided with an air inlet 11 and a driving device 5. The opening and closing panel 2 covers the air inlet 11 and is connected to the driving device 5. The driving device 5 drives the opening and closing panel 2 to swing for opening and closing the air inlet 11. The first foldable smoke collecting plate 3 and the second foldable smoke collecting plate 4 are connected to the smoke collecting chamber 1 and the opening and closing panel 2 and move with the opening and closing panel 2. The first foldable smoke collecting plate 3 and the second foldable smoke collecting plate 4 move with the opening and closing panel 2. The opening and closing panel 2 is driven by the driving device 5. In this way, the first foldable smoke collecting plate 3, the second foldable smoke collecting plate 4 and the opening and closing panel 2 share a driving structure. The swing of the opening and closing panel 2 drives the first foldable smoke collecting plate 3 and the second foldable smoke collecting plate 4 to be unfolded and retracted. The structure is simple and reliable. The driving module 51 and the driven module 52 are respectively connected to the side edges of the opening and closing panel 2 to improve the stability of the movement of the opening and closing panel 2.

[0042] The driving device 5 includes a driving module 51 and a driven module 52. The driving module 51 is connected to one side of the opening and closing panel 2, and the driven module 52 is connected to the other side of the opening and closing panel 2. The first folding cigarette collecting plate 3 is arranged close to the driving module 51, and the second folding cigarette collecting plate 4 is arranged close to the driven module 52. A compensation mechanism 6 is connected between the first folding cigarette collecting plate 3 and the smoke collecting chamber 1. After the first folding cigarette collecting plate 3 is fully unfolded, the compensation mechanism 6 drives the first folding cigarette collecting plate 3 to move relative to the smoke collecting chamber 1 to compensate for the movement stroke of the opening and closing panel 2.

[0043] The driven module 52 is arranged away from the driving module 51 to avoid the situation where, when the opening and closing panel 2 is unfolded to the maximum angle, the supporting force on the side of the opening and closing panel 2 close to the driven module 52 is inconsistent with the supporting force on the side of the opening and closing panel 2 close to the driving module 51, resulting in the first folding cigarette collecting plate being fully unfolded while the second folding cigarette collecting plate is not fully unfolded.

[0044] When the first foldable cigarette collecting plate 3 is fully unfolded, the opening and closing panel 2 is unfolded to the limit angle, driving the first foldable cigarette collecting plate 3 to move relative to the smoke collecting chamber 1. The movement of the first foldable cigarette collecting plate 3 compensates for the movement of the opening and closing panel 2 to continue to unfold. By increasing the swing angle of the opening and closing panel 2, both the first and second foldable cigarette collecting plates can be fully unfolded, thus ensuring that the unfolding angle of the second foldable cigarette collecting plate is consistent with the unfolding angle of the first foldable cigarette collecting plate. At the same time, the opening and closing panel 2 is unfolded to the maximum angle, increasing the smoke collecting area between the opening and closing panel 2 and the smoke collecting chamber 1.

[0045] Preferably, the first foldable cigarette collecting plate 3 is movably mounted on the compensation mechanism 6. The first foldable cigarette collecting plate 3 moves on the compensation mechanism 6 to compensate for the swing stroke of the opening and closing panel 2. The first foldable cigarette collecting plate 3 is movably mounted on the compensation mechanism 6. When the opening and closing panel 2 is unfolded to a limit angle, continuing to swing the opening and closing panel 2 can drive the first foldable cigarette collecting plate 3 to move relative to the smoke collecting chamber 1, resulting in a simple structure.

[0046] The first foldable smoke-collecting panel 3 includes a base 31, a fixing frame 32, and a first side panel 33 and a second side panel 34 that are hinged to each other. The first side panel 33 is hinged to the base 31, and the second side panel 34 is hinged to the fixing frame 32. The base 31 is connected to the smoke collection chamber 1, and the fixing frame 32 is connected to the opening and closing panel 2. The connecting hole 30 is provided on the base 31. The first foldable smoke-collecting panel is provided with the first side panel 33 and the second side panel 34 that are hinged to each other. When unfolded, the first foldable smoke-collecting panel has a large area, which increases the smoke-collecting area between the opening and closing panel 2 and the smoke collection chamber 1, thereby improving the smoke extraction efficiency of the range hood.

[0047] A mounting seat 12 is provided on the smoke collecting chamber 1, and the compensation mechanism 6 includes a limiting step screw 61 and a reset member 62; a connecting hole 30 is provided on the base 31; the limiting step screw 61 is fixedly connected to the mounting seat 12 through the connecting hole 30, and the base 3 is slidably set on the step 63 of the limiting step screw 61 through the connecting hole 30, and a gasket 64 is provided on the top of the limiting step screw 61, and the reset member 62 is set between the gasket 64 and the first folding smoke collecting plate 3.

[0048] By setting a limiting step screw 61, the first folding cigarette collecting plate 3 is connected to the smoke collecting chamber 1 while providing guidance for the movement of the first folding cigarette collecting plate 3; when the opening and closing panel 2 is unfolded to the limiting angle, the opening and closing panel 2 is driven to overcome the elastic force of the reset member 62 and continue to swing, thereby driving the first folding cigarette collecting plate 3 to move along the length direction of the limiting step screw 61, compensating for the movement stroke of the opening and closing panel 2 that continues to unfold; when the opening and closing panel 2 is closed, the opening and closing panel 2 is driven to move closer to the smoke collecting chamber 1, the force of the first folding cigarette collecting plate 3 on the reset member 62 is reduced, and the first folding cigarette collecting plate 3 is driven to reset under the elastic force of the reset member 62.

[0049] The reset member 62 may be a spring, a spring, or a rubber bump. In this embodiment, the reset member 62 is a spring that is sleeved on the step 63 of the limiting step screw 61 and is located between the gasket 64 and the first folding cigarette collecting plate 3. In another embodiment, the reset member 62 is a rubber bump provided on the base 3. The rubber bump is provided on the wall surface of the base 3 near the gasket 64 and is arranged around the connecting hole 30.

[0050] A torsion spring 7 is provided on the hinge column connecting the first side panel 33 and the base 31. The first torsion arm 71 of the torsion spring 7 abuts against the lower surface of the base 31, and the second torsion arm 72 of the torsion spring 7 abuts against the wall of the first side panel 33 away from the smoke collecting chamber 1. Under the elastic force of the torsion spring 7, the first side panel 33 moves closer to the base 31. A torsion spring 7 is provided on the hinge column connecting the first side panel 33 and the base 31. When the first foldable cigarette collecting plate is deployed, the first side panel 33 swings outward against the elastic force of the torsion spring 7. When the first foldable cigarette collecting plate is retracted, the first side panel 33 folds toward the base 31 under the elastic force of the torsion spring 7. When the first side panel 33 is folded, the second side panel 34 is moved closer. The torsion spring 7 applies a force to the first foldable cigarette collecting plate toward the smoke collecting chamber 1, ensuring that the first foldable cigarette collecting plate is folded and retracted into the smoke collecting chamber 1.

[0051] In a preferred embodiment, a slot 311 is provided at one end of the base 31, with the opening of the slot 311 facing the smoke collection chamber 1. The end of the first torsion arm 71 is accommodated in the slot 311. The slot 311 accommodates the first torsion arm 71 of the torsion spring 7, preventing it from falling out of the base 31 and improving the stability of the fit between the torsion spring 7 and the base 31. A recess 331 is provided on the wall of the first side panel 33 facing away from the smoke collection chamber 1. The end of the second torsion arm 72 is accommodated in the recess 331. This improves the stability of the fit between the torsion spring 7 and the first side panel 33.

[0052] A limit block 35 is provided on the side of the second side panel 34 close to the first side panel 33. The limit block 35 is provided to protrude outward from the side wall of the second side panel 34. The limit block 35 is used to abut against the first side panel 33 to limit the expansion angle of the first side panel 33 and the second side panel 34. By providing the limit block 35, the expansion angle of the first side panel 33 and the second side panel 34 is limited, and the second side panel 34 is prevented from rotating too much and folding back relative to the first side panel 33. Preferably, the limit block 35 limits the expansion angle of the first side panel 33 and the second side panel 34 to ≤180°. In this embodiment, the second folding cigarette collecting plate 4 has the same structure as the first folding cigarette collecting plate 3; refer to Figure 6 As shown, the first side plate 33 of the second foldable cigarette collecting plate 4 is provided with a groove 331 that cooperates with the second torsion arm 72 .

[0053] The driving module 51 includes a motor bracket 511, a driving motor 512, a driving rod 513, a driving rotating rod 514 and a connecting rod 515; the motor bracket 511 is fixed on the smoke collecting chamber 1, one end of the driving rotating rod 514 is hinged to the motor bracket 511, and the other end of the driving rotating rod 514 is fixedly connected to the opening and closing panel 2; the driving motor 512 is fixed on the motor bracket 511, the output end of the driving motor 512 is connected to one end of the driving rod 513, and the other end of the driving rod 513 is hinged to the driving rotating rod 514 through the connecting rod 515.

[0054] The driven module 52 includes a driven bracket 521 and a driven rotating rod 522 . The driven bracket 521 is fixed to the smoke collecting chamber 1 . One end of the driven rotating rod 522 is hinged to the driven bracket 521 , and the other end of the driven rotating rod 522 is fixedly connected to the opening and closing panel 2 .

[0055] In this specification, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it can mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it can mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0056] In the description of this specification, the description with reference to the terms "preferred embodiment", "further embodiment", "other embodiments" or "specific example" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0057] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A range hood with a foldable smoke collecting plate, comprising a smoke collecting chamber, an opening and closing panel, a first foldable smoke collecting plate, and a second foldable smoke collecting plate. The smoke collecting chamber is provided with an air inlet and a drive device. The opening and closing panel covers the air inlet and is connected to the drive device. The drive device drives the opening and closing panel to swing to open and close the air inlet. The first and second foldable smoke collecting plates are connected to the smoke collecting chamber and the opening and closing panel and move with the opening and closing panel. The range hood is characterized by: The driving device includes a driving module and a driven module. The driving module is connected to one side of the opening and closing panel, and the driven module is connected to the other side of the opening and closing panel. The first folding smoke collecting plate is arranged close to the driving module, and the second folding smoke collecting plate is arranged close to the driven module. A compensation mechanism is connected between the first folding smoke collecting plate and the smoke collecting chamber. After the first folding smoke collecting plate is fully unfolded, the compensation mechanism drives the first folding smoke collecting plate to move relative to the smoke collecting chamber to compensate for the movement stroke of the opening and closing panel.

2. The range hood with a foldable smoke collecting plate according to claim 1, characterized in that: The first foldable cigarette collecting plate is movably arranged on the compensation mechanism, and the first foldable cigarette collecting plate moves on the compensation mechanism to compensate for the swing stroke of the opening and closing panel.

3. The range hood with a foldable smoke collecting plate according to claim 2, characterized in that: A mounting seat is provided on the smoke collecting chamber, and the compensation mechanism includes a limiting step screw and a reset member; a connecting hole is provided on the side of the first folding smoke collecting plate close to the smoke collecting chamber; the limiting step screw is fixedly connected to the mounting seat through the connecting hole, and the connecting hole is slidably arranged on the step of the limiting step screw, and a gasket is provided on the top of the limiting step screw, and the reset member is arranged between the gasket and the first folding smoke collecting plate.

4. The range hood with a foldable smoke collecting plate according to claim 1, characterized in that: The first folding smoke collecting plate includes a base, a fixing frame, a first side plate and a second side plate hinged to each other, the first side plate is hinged to the base, the second side plate is hinged to the fixing frame, the base is connected to the smoke collecting chamber, and the fixing frame is connected to the opening and closing panel.

5. The range hood with a foldable smoke collecting plate according to claim 4, characterized in that: A torsion spring is provided on the hinge column between the first side panel and the base. The first torsion arm of the torsion spring abuts against the lower surface of the base, and the second torsion arm of the torsion spring abuts against the wall of the first side panel away from the smoke collecting chamber. The torsion spring is used to drive the first side panel closer to the base.

6. The range hood with a foldable smoke collecting plate according to claim 5, characterized in that: A card slot is provided at one end of the base, the opening direction of the card slot is arranged toward the smoke collecting chamber, and the end portion of the first torsion arm is accommodated in the card slot.

7. The range hood with a foldable smoke collecting plate according to claim 1, characterized in that: A limit block is provided on one side of the second side plate close to the first side plate. The limit block protrudes outward from the side wall of the second side plate. The limit block is used to abut against the first side plate to limit the expansion angle of the first side plate and the second side plate.

8. The range hood with a foldable smoke collecting plate according to claim 1, characterized in that: The driving module includes a motor bracket, a driving motor, a driving rod, a driving rotating rod and a connecting rod; the motor bracket is fixed on the smoke collecting chamber, one end of the driving rotating rod is hinged to the motor bracket, and the other end of the driving rotating rod is fixedly connected to the opening and closing panel; the driving motor is fixed on the motor bracket, the output end of the driving motor is connected to one end of the driving rod, and the other end of the driving rod is hinged to the driving rotating rod through the connecting rod.

9. The range hood with a foldable smoke collecting plate according to claim 1, characterized in that: The driven module includes a driven bracket and a driven rotating rod. The driven bracket is fixed on the smoke collecting chamber. One end of the driven rotating rod is hinged to the driven bracket, and the other end of the driven rotating rod is fixedly connected to the opening and closing panel.

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