A range hood

Abstract

This utility model discloses a range hood. The range hood includes a casing with an internal air chamber; a left smoke collection structure installed on the lower left side of the casing and capable of sliding vertically relative to the casing, the left smoke collection structure containing a smoke collection chamber; a right smoke collection structure installed on the lower right side of the casing and capable of sliding vertically relative to the casing, the right smoke collection structure containing a smoke collection chamber; a left drive structure installed on the left side of the casing and connected to the left smoke collection structure, the left drive structure driving the left smoke collection structure to slide vertically between a retracted position and an extended position, the retracted position being higher than the extended position; and a right drive structure installed on the right side of the casing and connected to the right smoke collection structure, the right drive structure driving the right smoke collection structure to slide vertically between a retracted position and an extended position, the retracted position being higher than the extended position.

Description

Technical Field

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

[0002] In the kitchen appliance sector, traditional range hoods are typically fixed above the cooktop, occupying upper kitchen space and often featuring a limited design that fails to blend with diverse kitchen décor styles. Furthermore, their fixed installation means the hood is exposed when not in use, affecting the kitchen's aesthetics and attracting dust, increasing cleaning difficulty. For dual-burner cooktops, traditional single-cavity range hoods struggle to accurately capture fumes from both burners, leading to smoke escape and reduced exhaust efficiency. While some liftable range hoods exist, most are single-cavity lift-only, lacking independent control for both burners and failing to meet individual user needs in different cooking scenarios. Some range hoods offer individual lift-up for each cavity, but these are generally more complex and energy-intensive.

[0003] Therefore, there is an urgent need for a range hood to solve the above problems. Utility Model Content

[0004] The present invention aims to at least partially solve one of the problems existing in the existing related technologies. To this end, the present invention proposes a range hood with a simple structure and multiple cooking modes to meet the diverse cooking needs of users.

[0005] The above objectives are achieved through the following technical solutions:

[0006] A range hood, comprising:

[0007] The chassis contains an air chamber.

[0008] A left smoke collection structure is installed on the lower left side of the chassis and can slide vertically relative to the chassis. A smoke collection chamber is provided inside the left smoke collection structure.

[0009] The right smoke collection structure is installed on the lower right side of the chassis and can slide vertically relative to the chassis. The smoke collection chamber is provided inside the right smoke collection structure.

[0010] A left drive structure is installed on the left side of the chassis and is connected to the left smoke collection structure in a transmission manner. The left drive structure can drive the left smoke collection structure to slide vertically between a retracted position and an extended position, wherein the retracted position is higher than the extended position.

[0011] A right drive structure is installed on the right side of the chassis and is connected to the right smoke collection structure in a transmission manner. The right drive structure can drive the right smoke collection structure to slide between a retracted position and an extended position in the vertical direction, wherein the retracted position is higher than the extended position.

[0012] The left smoke baffle is installed on the upper side of the left smoke collection structure and is arranged in the vertical direction;

[0013] The right smoke baffle is installed on the upper side of the right smoke collection structure and is arranged in the vertical direction;

[0014] A panel is installed on the front side of the chassis, the left smoke collection structure, and the right smoke collection structure;

[0015] A smoke separator is disposed on the chassis and located between the left smoke collection structure and the right smoke collection structure;

[0016] When both the left and right smoke collection structures are in the retracted position, the smoke collection chambers of both structures are directly connected to the air cavity. When the left smoke collection structure is in the extended position, the left smoke baffle, the rear panel of the chassis, the front panel, and the smoke separator form a left air duct, and the smoke collection chamber of the left structure is connected to the air cavity through the left air duct. When the right smoke collection structure is in the extended position, the right smoke baffle, the rear panel of the chassis, the front panel, and the smoke separator form a right air duct, and the smoke collection chamber of the right structure is connected to the air cavity through the right air duct.

[0017] Optionally, the left smoke baffle is connected to the left side panel of the chassis and can slide vertically relative to the left side panel, and the right smoke baffle is connected to the right side panel of the chassis and can slide vertically relative to the right side panel.

[0018] Optionally, the left smoke baffle is disposed on the outside of the left side panel, and the right smoke baffle is disposed on the outside of the right side panel.

[0019] Optionally, a light is also provided at the bottom of the smoke barrier.

[0020] Optionally, the range hood is installed inside a cabinet, and the panel includes a main body and a touch control portion disposed at the lower end of the main body, the touch control portion extending from the bottom of the cabinet.

[0021] Optionally, both the left smoke collection structure and the right smoke collection structure include:

[0022] A smoke collection hood, wherein a smoke collection chamber is provided inside the smoke collection hood, a smoke inlet communicating with the smoke collection chamber is provided on the lower side of the smoke collection hood, and a smoke outlet communicating with the smoke collection chamber is provided on the upper side of the smoke collection hood;

[0023] An oil cup is installed on the bottom side of the smoke collection hood and located behind the smoke inlet.

[0024] Optionally, when both the left and right smoke collection structures are in the retracted position, the bottom of the smoke hood is higher than the bottom of the cabinet, or the bottom of the smoke hood is flush with the bottom of the cabinet; when the left and / or right smoke collection structures are in the extended position, the smoke hood extends from the bottom of the panel.

[0025] Optionally, the extended position includes a first extended position and a second extended position, wherein the first extended position is set higher than the second extended position.

[0026] Optionally, both the left and right smoke collection structures further include a smoke sensor, which is installed on the lower side of the smoke collection hood.

[0027] Optionally, both the left drive structure and the right drive structure include:

[0028] The drive motor is installed inside the chassis.

[0029] Gears are installed at the output end of the drive motor;

[0030] The slide rail is installed vertically inside the chassis;

[0031] A slider is mounted on the slide rail and is capable of sliding along the slide rail;

[0032] A rack is connected to the slider and meshes with the gear for transmission.

[0033] The left smoke collection structure is installed at the lower end of the rack of the left drive structure, and the right smoke collection structure is installed at the lower end of the rack of the right drive structure.

[0034] Compared with the prior art, the present invention has at least the following beneficial effects:

[0035] The range hood provided by this utility model uses a left-drive structure to independently raise and lower the left smoke collection structure, and a right-drive structure to raise and lower the right smoke collection structure. This allows the left and right smoke collection structures to be raised and lowered as needed. Specifically, when cooking is done at the left burner, only the left-drive structure needs to lower the left smoke collection structure to its extended position to collect the smoke. When cooking is done at the right burner, only the right-drive structure needs to lower the right smoke collection structure to its extended position to collect the smoke. When cooking is done at both burners, the left-drive structure lowers the left smoke collection structure to its extended position to collect the smoke, and the right-drive structure lowers the right smoke collection structure to its extended position to collect the smoke. In this way, the range hood can selectively concentrate its airflow to suck up the fumes from the left or right side, improving the smoke collection effect. Furthermore, by setting up left and right smoke baffles, the left smoke baffle moves independently with the left smoke collection structure, and the right smoke baffle moves independently with the right smoke collection structure. This allows the left smoke collection structure to be in the extended position, where the left smoke baffle, together with the rear panel, front panel, and smoke-isolating components of the chassis, forms a left air duct, and the smoke collection chamber within the left smoke collection structure can transport the fumes to the air cavity through the left air duct. Similarly, when the right smoke collection structure is in the extended position, the right smoke baffle can be in the extended position, together with the rear panel, front panel, and smoke-isolating components of the chassis, forming a right air duct, and the smoke collection chamber of the left smoke collection structure can... The system can transport fumes to the air cavity through the right air duct. The left drive structure only needs to drive the left smoke baffle and the left smoke collection structure to rise and fall, without needing to drive other structures in the left air duct except for the left smoke baffle to rise and fall simultaneously. Similarly, the right drive structure only needs to drive the right smoke baffle and the right smoke collection structure to rise and fall, without needing to drive other structures in the right air duct except for the right smoke baffle to rise and fall simultaneously. This system has the advantages of simple and compact structure and low energy consumption. Attached Figure Description

[0036] Figure 1 This is a three-dimensional structural diagram of the range hood provided in a specific embodiment of the present utility model (both the left and right smoke collection structures are in the retracted position);

[0037] Figure 2 This is a three-dimensional structural diagram of the range hood provided in a specific embodiment of the present utility model (both the left and right smoke collection structures are in the extended position);

[0038] Figure 3 This is a schematic diagram of the structure of a range hood installed inside a cabinet according to a specific embodiment of the present invention (both the left and right smoke collection structures are in the retracted position);

[0039] Figure 4 yes Figure 3 Sectional view at point AA;

[0040] Figure 5 yes Figure 2 A sectional view;

[0041] Figure 6 This is an assembly diagram of the left smoke collection structure, left drive structure, and chassis structure of the range hood provided in a specific embodiment of this utility model;

[0042] Figure 7 This is an exploded view of the left smoke baffle and the casing of the range hood provided in a specific embodiment of this utility model;

[0043] Figure 8 This is a front view of the range hood provided in a specific embodiment of the present utility model (both the left and right smoke collection structures are in the retracted position);

[0044] Figure 9 This is a front view of the range hood provided in a specific embodiment of the present utility model (both the left and right smoke collection structures are in the second extended position);

[0045] Figure 10 This is a front view of the range hood provided in a specific embodiment of the present utility model (the left smoke collection structure is in the retracted position, and the right smoke collection structure is in the second extended position).

[0046] Figure 11 This is a front view of the range hood provided in a specific embodiment of the present utility model (the left smoke collection structure is in the second extended position, and the right smoke collection structure is in the first extended position).

[0047] In the picture:

[0048] 1. Chassis; 11. Left side panel; 12. Right side panel; 13. Rear side panel; 10. Air chamber;

[0049] 20. Smoke collection chamber; 201. Smoke inlet; 202. Smoke outlet; 21. Smoke hood; 22. Smoke sensor; 23. Oil guide plate; 24. Oil cup;

[0050] 3. Panel; 31. Body; 32. Touchscreen;

[0051] 41. Left smoke baffle; 42. Right smoke baffle; 401. Left air duct; 402. Right air duct;

[0052] 501. Left drive structure; 502. Right drive structure; 51. Drive motor; 52. Rack; 53. Slider; 54. Slide rail; 55. Gear;

[0053] 6. Lighting;

[0054] 7. Cabinets;

[0055] 8. Smoke-proof components;

[0056] 100. Left smoke collection structure; 200. Right smoke collection structure. Detailed Implementation

[0057] The following embodiments illustrate the present invention, but the present invention is not limited to these embodiments. Modifications to the specific implementation of the present invention or equivalent substitutions for some technical features, without departing from the spirit of the present invention, should all be covered within the scope of the technical solution claimed by the present invention.

[0058] Please refer to Figures 1-7 This utility model provides a range hood, including a housing 1, a left smoke collection structure 100, a right smoke collection structure 200, a left drive structure 501, a right drive structure 502, a left smoke baffle 41, a right smoke baffle 42, a panel 3, and a smoke separator 8. A wind chamber 10 is provided inside the housing 1. The left smoke collection structure 100 is installed on the lower side of the left side of the housing 1 and can slide vertically relative to the housing 1. A smoke collection chamber 20 is provided inside the left smoke collection structure 100. The right smoke collection structure 200 is installed on the lower side of the right side of the housing 1 and can slide vertically relative to the housing 1. A smoke collection chamber 20 is provided inside the right smoke collection structure 200. The left drive structure 501 is installed on the left side of the housing 1 and is connected to the left smoke collection structure 100. The left drive structure 501 can drive the left smoke collection structure 100 to slide vertically between a retracted position and an extended position, with the retracted position being higher than the extended position. The right drive structure 502 is installed on the right side of the housing 1 and is connected to the right smoke collection structure 200. The right drive structure 502 can drive the right smoke collection structure 200 to slide vertically between a retracted position and an extended position, with the retracted position being higher than the extended position. The left smoke baffle 41 is installed on the upper side of the left smoke collection structure 100 and is arranged vertically. The right smoke baffle 42 is installed on the upper side of the right smoke collection structure 200 and is arranged vertically. The panel 3 is installed on the front side of the housing 1, the left smoke collection structure 100, and the right smoke collection structure 200. The smoke separator 8 is provided on the housing 1 and located between the left smoke collection structure 100 and the right smoke collection structure 200. When both the left smoke collection structure 100 and the right smoke collection structure 200 are in the retracted position, the smoke collection chambers 20 of both the left smoke collection structure 100 and the right smoke collection structure 200 are directly connected to the air cavity 10. When the left smoke collection structure 100 is in the extended position, the left smoke baffle 41, the rear side plate 13 of the housing 1, the panel 3, and the smoke isolation component 8 enclose and form a left air duct 401. The smoke collection chamber 20 of the left smoke collection structure 100 is connected to the air cavity 10 through the left air duct 401. The right smoke baffle 42, the rear side plate 13 of the housing 1, the panel 3, and the smoke isolation component 8 enclose and form a right air duct 402. The smoke collection chamber 20 of the right smoke collection structure 200 is connected to the air cavity 10 through the right air duct 402.

[0059] The range hood provided by this utility model uses a left drive structure 501 to independently drive the left smoke collection structure 100 to rise and fall, and a right drive structure 502 to drive the right smoke collection structure 200 to rise and fall. This allows the left and right smoke collection structures 100 and 200 to rise and fall as needed. Specifically, when cooking is being done at the left burner, the left drive structure 501 only needs to drive the left smoke collection structure 100 down to its extended position to collect smoke. When cooking is being done at the right burner, the right drive structure 502 only needs to drive the right smoke collection structure 200 down to its extended position to collect smoke. When cooking is being done at both burners, the left drive structure 501 drives the left smoke collection structure 100 down to its extended position to collect smoke, and the right drive structure 502 drives the right smoke collection structure 200 down to its extended position to collect smoke. In this way, the range hood can selectively concentrate its airflow to suck up the smoke from the left or right side, improving the smoke collection effect. Furthermore, by setting a left smoke baffle 41 and a right smoke baffle 42, the left smoke baffle 41 moves independently with the left smoke collection structure 100, and the right smoke baffle 42 moves independently with the right smoke collection structure 200. This allows the left smoke collection structure 100 to be in the extended position, where the left smoke baffle 41 can form a left air duct 401 with the rear side panel 13, panel 3, and smoke separator 8 of the chassis 1. The smoke collection chamber 20 within the left smoke collection structure 100 can then transport the fumes to the air chamber 10 through the left air duct 401. When the right smoke collection structure 200 is in the extended position, the right smoke baffle 42 can form a right air duct 402 with the rear side panel 13, panel 3, and smoke separator 8 of the chassis 1. The left smoke collection structure 100... The smoke chamber 20 can transport oil fumes to the air chamber 10 through the right air duct 402. The left drive structure 501 only needs to drive the left smoke baffle 41 and the left smoke collection structure 100 to rise and fall, without driving the other structures of the left air duct 401 other than the left smoke baffle 41 to rise and fall at the same time. Similarly, the right drive structure 502 only needs to drive the right smoke baffle 42 and the right smoke collection structure 200 to rise and fall, without driving the other structures of the right air duct 402 other than the right smoke baffle 42 to rise and fall at the same time. It can transport the oil fumes in the smoke collection chamber 20 of the right smoke collection structure 200 to the air chamber 10. It has the advantages of simple and compact structure and low energy consumption.

[0060] Optionally, the left smoke baffle 41 is connected to the left side plate 11 of the chassis 1 and can slide vertically relative to the left side plate 11 to improve the movement stability of the left smoke baffle 41, and the right smoke baffle 42 is connected to the right side plate 12 of the chassis 1 and can slide vertically relative to the right side plate 12 to improve the movement stability of the right smoke baffle 42.

[0061] Optionally, the left smoke baffle 41 is disposed on the outer side of the left side plate 11 to facilitate its placement and avoid interference between the left smoke baffle 41 and the left drive structure 501 disposed within the chassis 1. The right smoke baffle 42 is disposed on the outer side of the right side plate 12 to facilitate its placement and avoid interference between the right smoke baffle 42 and the right drive structure 502 disposed within the chassis 1.

[0062] Optionally, a light 6 is also provided at the bottom of the smoke barrier 8 to facilitate the installation of the light 6 for illumination.

[0063] Optionally, the range hood is installed inside the cabinet 7, and the panel 3 includes a main body 31 and a touch control part 32 disposed at the lower end of the main body 31. The touch control part 32 extends from the bottom of the cabinet 7 so that the user can control the operation of the range hood through the touch control part 32.

[0064] Optionally, both the left smoke collection structure 100 and the right smoke collection structure 200 include a smoke collection hood 21 and an oil cup 24. The smoke collection hood 21 has a smoke collection chamber 20 inside, a smoke inlet 201 communicating with the smoke collection chamber 20 on its lower side, and a smoke outlet 202 communicating with the smoke collection chamber 20 on its upper side. The oil cup 24 is installed on the bottom side of the smoke collection hood 21 and located behind the smoke inlet 201.

[0065] Optionally, both the left smoke collection structure 100 and the right smoke collection structure 200 also include a smoke guide plate, which is set at the smoke inlet 201 to guide the oil fumes.

[0066] Optionally, when both the left smoke collection structure 100 and the right smoke collection structure 200 are in the retracted position, the bottom of the smoke collection hood 21 is set higher than the bottom of the cabinet 7, or the bottom of the smoke collection hood 21 is level with the bottom of the cabinet 7, so that the range hood can be completely retracted into the cabinet 7 when in standby mode; when both the left smoke collection structure 100 and / or the right smoke collection structure 200 are in the extended position, the smoke collection hood 21 extends from the bottom of the panel 3, so that when the range hood is working, it can extend from the cabinet 7 and approach the cooking area for better smoke collection.

[0067] Optionally, the extension positions include a first extension position and a second extension position, with the first extension position being higher than the second extension position. When the concentration of oil fumes generated during cooking is high, the left smoke collection structure 100 and / or the right smoke collection structure 200 extend to the second position; when the concentration of oil fumes generated during cooking is low, the left smoke collection structure 100 and / or the right smoke collection structure 200 extend to the first position.

[0068] Optionally, both the left smoke collection structure 100 and the right smoke collection structure 200 further include a smoke sensor 22, which is installed on the lower side of the smoke collection hood 21. The left drive structure 501 drives the left smoke collection structure 100 to rise and fall according to the smoke concentration detected by the smoke sensor 22.

[0069] Optionally, both the left drive structure 501 and the right drive structure 502 include a drive motor 51, a gear 55, a slide rail 54, a slider 53, and a rack 52. The drive motor 51 is installed inside the housing 1. The gear 55 is installed at the output end of the drive motor 51. The slide rail 54 is installed vertically inside the housing 1. The slider 53 is installed on the slide rail 54 and can slide along the slide rail 54. The rack 52 is connected to the slider 53 and meshes with the gear 55 for transmission. The left smoke collection structure 100 is installed at the lower end of the rack 52 of the left drive structure 501, and the right smoke collection structure 200 is installed at the lower end of the rack 52 of the right drive structure 502.

[0070] In other embodiments, the left drive structure 501 and the right drive structure 502 may also be other lifting drive structures, such as linear motors, etc., which are not limited here.

[0071] Specifically, such as Figure 8 As shown, this state indicates the range hood is off, with both the left smoke collection structure 100 and the right smoke collection structure 200 in their retracted positions, hidden within the cabinet 7. Figure 9 As shown, both the left smoke collection structure 100 and the right smoke collection structure 200 are in the extended position. Both structures have descended to the second extended position (in this embodiment, both descend 180mm). At this point, the smoke extraction performance of the left and right smoke collection structures 100 and 200 reaches its optimal state, and the range hood's fan speed is also at its highest setting. Figure 10 As shown, when the right burner is ignited for stir-frying and cooking, and the left burner is not ignited, the left smoke collection structure 100 is in the retracted position, and the right smoke collection structure 200 descends to the second extended position. The fan speed is automatically adjusted according to the smoke concentration detected by the smoke sensor 22 of the right smoke collection structure 200. All the airflow of the range hood is concentrated in the right smoke collection chamber, achieving excellent smoke extraction effect. Figure 11 As shown, when the right burner is ignited for steaming and cooking, and the left burner is ignited for stir-frying, the left smoke collection structure 100 descends to the second extension position, and the right smoke collection structure 200 descends to the first extension position (in this embodiment, the right smoke collection structure 200 descends 100mm), and the fan speed is at its highest setting. This allows the range hood to have multiple operating states to meet different cooking needs of users.

[0072] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A range hood, characterized in that, include: The chassis (1) has an air chamber (10) inside; The left smoke collection structure (100) is installed on the lower side of the left side of the chassis (1) and can slide vertically relative to the chassis (1). The left smoke collection structure (100) is provided with a smoke collection chamber (20). The right smoke collection structure (200) is installed on the lower side of the right side of the chassis (1) and can slide vertically relative to the chassis (1). The smoke collection chamber (20) is provided inside the right smoke collection structure (200). A left drive structure (501) is installed on the left side of the chassis (1) and is connected to the left smoke collection structure (100) in a transmission manner. The left drive structure (501) can drive the left smoke collection structure (100) to slide between a retracted position and an extended position in the vertical direction. The retracted position is higher than the extended position. A right drive structure (502) is installed on the right side of the chassis (1) and is connected to the right smoke collection structure (200) in a transmission manner. The right drive structure (502) can drive the right smoke collection structure (200) to slide between a retracted position and an extended position in the vertical direction. The retracted position is higher than the extended position. The left smoke baffle (41) is installed on the upper side of the left smoke collection structure (100) and is arranged in the vertical direction; The right smoke baffle (42) is installed on the upper side of the right smoke collection structure (200) and is arranged in the vertical direction; Panel (3) is installed on the front side of the chassis (1), the left smoke collection structure (100), and the right smoke collection structure (200); A smoke separator (8) is disposed on the chassis (1) and located between the left smoke collection structure (100) and the right smoke collection structure (200); When both the left smoke collection structure (100) and the right smoke collection structure (200) are in the retracted position, the smoke collection chambers (20) of both the left smoke collection structure (100) and the right smoke collection structure (200) are directly connected to the air chamber (10); when the left smoke collection structure (100) is in the extended position, the left smoke baffle (41), the rear side plate (13) of the chassis (1), the panel (3), and the smoke separator (8) enclose and form a left air duct (401). The smoke collection chamber (20) of the left smoke collection structure (100) is connected to the air cavity (10) through the left air duct (401); when the right smoke collection structure (200) is in the extended position, the right smoke baffle (42), the rear side plate (13) of the chassis (1), the panel (3) and the smoke separator (8) form a right air duct (402), and the smoke collection chamber (20) of the right smoke collection structure (200) is connected to the air cavity (10) through the right air duct (402).

2. The range hood according to claim 1, characterized in that, The left smoke baffle (41) is connected to the left side plate (11) of the chassis (1) and can slide vertically relative to the left side plate (11). The right smoke baffle (42) is connected to the right side plate (12) of the chassis (1) and can slide vertically relative to the right side plate (12).

3. The range hood according to claim 2, characterized in that, The left smoke baffle (41) is located on the outside of the left side plate (11), and the right smoke baffle (42) is located on the outside of the right side plate (12).

4. The range hood according to claim 1, characterized in that, The bottom end of the smoke barrier (8) is also provided with a lighting lamp (6).

5. The range hood according to any one of claims 1-4, characterized in that, The range hood is installed inside the cabinet (7). The panel (3) includes a body part (31) and a touch part (32) disposed at the lower end of the body part (31). The touch part (32) extends from the bottom of the cabinet (7).

6. The range hood according to claim 5, characterized in that, Both the left smoke collection structure (100) and the right smoke collection structure (200) include: A smoke collection hood (21) is provided inside the smoke collection chamber (20). A smoke inlet (201) communicating with the smoke collection chamber (20) is provided on the lower side of the smoke collection hood (21). A smoke outlet (202) communicating with the smoke collection chamber (20) is provided on the upper side of the smoke collection hood (21). The oil cup (24) is installed on the bottom side of the smoke collection hood (21) and located behind the smoke inlet (201).

7. The range hood according to claim 6, characterized in that, When both the left smoke collection structure (100) and the right smoke collection structure (200) are in the retracted position, the bottom of the smoke collection hood (21) is higher than the bottom of the cabinet (7), or the bottom of the smoke collection hood (21) is level with the bottom of the cabinet (7); when the left smoke collection structure (100) and / or the right smoke collection structure (200) are in the extended position, the smoke collection hood (21) extends from the bottom of the panel (3).

8. The range hood according to claim 6, characterized in that, The extended position includes a first extended position and a second extended position, wherein the first extended position is set higher than the second extended position.

9. The range hood according to claim 8, characterized in that, Both the left smoke collection structure (100) and the right smoke collection structure (200) further include a smoke sensor (22), which is installed on the lower side of the smoke collection hood (21).

10. The range hood according to any one of claims 1-4, characterized in that, Both the left drive structure (501) and the right drive structure (502) include: A drive motor (51) is installed inside the chassis (1); Gear (55) is installed at the output end of the drive motor (51); The slide rail (54) is installed vertically inside the chassis (1); A slider (53) is mounted on the slide rail (54) and is able to slide along the slide rail (54); A rack (52) is connected to the slider (53) and meshes with the gear (55) for transmission; The left smoke collection structure (100) is installed at the lower end of the rack (52) of the left drive structure (501), and the right smoke collection structure (200) is installed at the lower end of the rack (52) of the right drive structure (502).

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