A range hood

Abstract

The present invention discloses a range hood. The range hood includes a fume hood having a first main air inlet and a second main air inlet, with a first position formed between the first and second main air inlets; a filter assembly including a first filter and a second filter, with the first filter installed at the first main air inlet and the second filter installed at the second main air inlet; a movable filter structure installed on the fume hood and located above the first and second filters, the movable filter structure including a mesh structure capable of moving relative to the fume hood between a first position, a second position, and a third position. When the movable filter structure is in the first position, the mesh structure is located above the first filter; when the movable filter structure is in the second position, the mesh structure is located above the second filter; and when the movable filter structure is in the third position, the mesh structure is located above the first position.

Description

Technical Field

[0001] The present invention relates to the technical field of kitchen appliances, and in particular to a range hood. Background Art

[0002] Existing dual-chamber range hoods typically have two air intakes extending outward from the center of the hood. Because the air intakes are located closer to the sides of the hood and farther from the range hood's air duct, the air pressure is lower. When large amounts of oil smoke are present, some of the smoke tends to escape through the sides of the hood, degrading kitchen air quality and impacting human health.

[0003] Therefore, a range hood is urgently needed to solve the above problems. Summary of the Invention

[0004] The present invention aims to solve, at least to a certain extent, one of the problems existing in the existing related technologies. To this end, the present invention proposes a range hood that can expand the negative pressure area of the range hood for absorbing oil fumes, thereby expanding the area for oil fumes to enter the range hood, thereby reducing the escape of oil fumes, and at the same time performing double filtration of the oil fumes, thereby improving the oil fume filtration effect.

[0005] The above purpose is achieved through the following technical solutions:

[0006] A range hood, comprising:

[0007] A smoke collecting hood is provided with a first main air inlet and a second main air inlet, wherein a first portion is formed between the first main air inlet and the second main air inlet;

[0008] A filter assembly, comprising a first filter and a second filter, wherein the first filter is installed at the first main air inlet, and the second filter is installed at the second main air inlet;

[0009] A movable filter structure is installed on the smoke hood and is located on the upper side of the first filter and the second filter. The movable filter structure includes a mesh structure. The movable filter structure can move between a first position, a second position and a third position relative to the smoke hood. When the movable filter structure is located at the first position, the mesh structure is located above the first filter; when the movable filter structure is located at the second position, the mesh structure is located above the second filter; when the movable filter structure is located at the third position, the mesh structure is located above the first position.

[0010] Optionally, the movable filter structure includes a driving structure installed on the smoke hood and a movable mesh plate transmission-connected to the driving structure, the driving structure can drive the movable mesh plate to move between the first position, the second position and the third position relative to the smoke hood, and the mesh structure is opened on the movable mesh plate.

[0011] Optionally, the driving structure includes a motor and a rack and pinion transmission assembly, the motor is mounted on the smoke hood, and the motor drives the movable mesh plate to move relative to the smoke hood between the first position, the second position and the third position through the rack and pinion transmission assembly.

[0012] Optionally, the rack and pinion transmission assembly includes a gear and a rack meshing and connected to the gear, the gear is mounted on the output end of the motor, and the rack is mounted on one of the front side and the rear side of the movable screen.

[0013] Optionally, the movable filter structure further includes a guide member, which is mounted on the smoke hood; one of the front side and the rear side of the movable screen is connected to the motor through the rack and pinion transmission assembly, and the other is slidably connected to the guide member.

[0014] Optionally, an oil cup is further included, which is arranged on the lower side of the rear part of the smoke hood, and the movable screen is arranged to be tilted downward from the front side to the rear side.

[0015] Optionally, an auxiliary air inlet is further provided on the smoke hood, and the auxiliary air inlet is located at the first position, a second part is formed between the first main air inlet and the auxiliary air inlet, and a third part is formed between the second main air inlet and the auxiliary air inlet.

[0016] Optionally, the filter assembly further includes a third filter, and the third filter is installed at the auxiliary air inlet.

[0017] Optionally, the mesh structure includes a first mesh group and a second mesh group, and a first plate is formed between the first mesh group and the second mesh group. When the movable mesh plate is located at the first position, the second mesh group is located above the first filter, and the first mesh group is located above the third filter; when the movable mesh plate is located at the second position, the second mesh group is located above the third filter, and the first mesh group is located above the second filter; when the movable mesh plate is located at the third position, the first plate is located above the third filter, the first mesh group is located above the third part, and the second mesh group is located above the second part.

[0018] Optionally, the first mesh group has a second plate on the side away from the first plate, and the second mesh group has a third plate on the side away from the first plate. When the movable mesh plate is in the third position, the second plate is located above the second filter screen, and the third plate is located above the first filter screen.

[0019] Optionally, the portion of the first filter screen close to the third filter screen is a first filter portion, and the first filter portion is inclined downward from a side away from the third filter screen to a side close to the third filter screen; the portion of the second filter screen close to the third filter screen is a second filter portion, and the second filter portion is inclined downward from a side away from the third filter screen to a side close to the third filter screen; the movable mesh plate is shaped as an arc surface; when the movable mesh plate is located in the third position, the movable mesh plate bends downward from both ends to the middle, and the third plate is located above the first filter portion, and the second plate is located above the second filter portion.

[0020] Optionally, it further includes a chassis and a turbine structure arranged in the chassis, the chassis is installed on the smoke collection hood, and the movable filter structure is arranged between the turbine structure and the smoke collection hood.

[0021] Compared with the prior art, the present invention has at least the following beneficial effects:

[0022] The range hood provided in this embodiment can, when the left stove below the range hood is turned on alone, move the movable filter structure relative to the fume hood to a first position, so that the mesh structure of the movable filter structure is located above the first filter, thereby expanding the negative pressure zone for the range hood to absorb oil fumes, increasing the area over which oil fumes enter the range hood, thereby reducing oil fume escape, and performing a double filtration of the oil fumes, thereby improving the oil fume filtration effect. Similarly, when the right stove below the range hood is turned on alone, the movable filter structure moves relative to the fume hood to a second position, so that the mesh structure of the movable filter structure is located above the second filter, thereby expanding the negative pressure zone for the range hood to absorb oil fumes, increasing the area over which oil fumes enter the range hood, thereby reducing oil fume escape, and performing a double filtration of the oil fumes, thereby improving the oil fume filtration effect. When the left stove and the right stove under the range hood are turned on at the same time, the movable filter structure moves to the third position relative to the smoke collection hood, and the mesh structure is located above the first position, so that the negative pressure of the first main air inlet and the second main air inlet of the range hood are the same, ensuring a more balanced oil fume extraction effect on the left stove and the right stove, and at the same time making the movable filter structure act as a condensation plate to accelerate the condensation of oil fume. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1is a schematic diagram of the three-dimensional structure of a range hood provided by a specific embodiment of the present invention;

[0024] Figure 2 yes Figure 1 Exploded view of

[0025] Figure 3 This is a structural diagram of a range hood provided by a specific embodiment of the present invention with the chassis and turbine removed (the movable screen is located at the third position);

[0026] Figure 4 It is a structural schematic diagram of the range hood provided by a specific embodiment of the present invention with the chassis and turbine removed (the movable screen is located at the first position).

[0027] In the picture:

[0028] 1. Fume hood; 11. First main air inlet; 12. Second main air inlet; 13. Auxiliary air inlet;

[0029] 2. Filter assembly; 21. First filter; 22. Second filter; 23. Third filter;

[0030] 3. Mobile filter structure; 31. Mobile screen plate; 311. First mesh group; 312. Second mesh group; 313. First plate; 314. Second plate; 315. Third plate; 316. Rack; 32. Motor; 33. Guide member;

[0031] 4. Chassis;

[0032] 5. Turbine structure;

[0033] 6. Oil cup. DETAILED DESCRIPTION

[0034] The following examples illustrate the present invention, but the present invention is not limited to these examples. Modifications to the specific embodiments of the present invention or equivalent replacements of some technical features without departing from the spirit of the present invention should be included in the scope of the technical solution claimed in the present invention.

[0035] Please refer to Figures 1-4The present invention provides a range hood, comprising a smoke hood 1, a filter assembly 2 and a movable filter structure 3. The smoke hood 1 is provided with a first main air inlet 11 and a second main air inlet 12, and a first portion is formed between the first main air inlet 11 and the second main air inlet 12. The filter assembly 2 comprises a first filter 21 and a second filter 22, wherein the first filter 21 is mounted at the first main air inlet 11 and the second filter 22 is mounted at the second main air inlet 12. The movable filter structure 3 is mounted on the smoke hood 1 and is located above the first filter 21 and the second filter 22. The movable filter structure 3 comprises a mesh structure, and the movable filter structure 3 can move relative to the smoke hood 1 between a first position, a second position and a third position. When the movable filter structure 3 is in the first position, the mesh structure is located above the first filter 21; when the movable filter structure 3 is in the second position, the mesh structure is located above the second filter 22; and when the movable filter structure 3 is in the third position, the mesh structure is located above the first portion.

[0036] The range hood provided in this embodiment can, when the left stove below the range hood is turned on alone, move the mobile filter structure 3 relative to the fume hood 1 to a first position, so that the mesh structure of the mobile filter structure 3 is located above the first filter 21, thereby expanding the negative pressure zone for the range hood to absorb oil fumes, and expanding the area for oil fumes to enter the range hood, thereby reducing oil fume escape, and at the same time, performing a double filtration on the oil fumes, thereby improving the oil fume filtration effect. Similarly, when the right stove below the range hood is turned on alone, the mobile filter structure 3 moves to a second position relative to the fume hood 1, so that the mesh structure of the mobile filter structure 3 is located above the second filter 22, thereby expanding the negative pressure zone for the range hood to absorb oil fumes, and expanding the area for oil fumes to enter the range hood, thereby reducing oil fume escape, and at the same time, performing a double filtration on the oil fumes, thereby improving the oil fume filtration effect. When the left stove and the right stove below the range hood are turned on at the same time, the movable filter structure 3 moves to the third position relative to the smoke hood 1, and the mesh structure is located above the first position, so that the negative pressure of the first main air inlet 11 and the second main air inlet 12 of the range hood are the same, ensuring a more balanced oil fume extraction effect on the left stove and the right stove, and at the same time making the movable filter structure 3 act as a condensation plate to accelerate the condensation of oil fume.

[0037] Optionally, the movable filter structure 3 includes a drive structure mounted on the fume hood 1 and a movable mesh plate 31 in transmission connection with the drive structure. The drive structure is capable of driving the movable mesh plate 31 to move between a first position, a second position, and a third position relative to the fume hood 1. The mesh structure is provided on the movable mesh plate 31. The movable filter structure 3 has a simple structure and is easy to install on the range hood.

[0038] Optionally, the drive structure includes a motor 32 and a rack-and-pinion transmission assembly. The motor 32 is mounted on the smoke hood 1. The motor 32 drives the movable screen 31 to move between a first position, a second position, and a third position relative to the smoke hood 1 via the rack-and-pinion transmission assembly. Providing the motor 32 and the rack-and-pinion transmission assembly to drive the movable screen 31 helps ensure the movement accuracy of the movable screen 31.

[0039] Optionally, the rack and pinion transmission assembly includes a gear and a rack 316 meshing with the gear, the gear is installed at the output end of the motor 32, and the rack 316 is installed on one of the front and rear sides of the movable screen 31, so that the motor 32 can drive the movable screen 31 to move in the left and right directions through the rack and pinion transmission assembly.

[0040] Optionally, the movable filter structure 3 further includes a guide member 33, which is mounted on the smoke hood 1. One of the front and rear sides of the movable screen 31 is in transmission connection with the motor 32 via a rack and pinion transmission assembly, and the other is in sliding connection with the guide member 33. The guide member 33 ensures that the movable screen 31 can always move along the guide member 33, thereby ensuring the movement stability of the movable screen 31 and the movement accuracy of the movable filter structure 3.

[0041] Optionally, an oil cup 6 is further included, which is arranged on the lower side of the rear part of the smoke hood 1, and the movable mesh plate 31 is tilted downward from the front to the rear so that the condensed smoke can flow smoothly into the oil cup 6.

[0042] Optionally, an auxiliary air inlet 13 is further provided on the smoke hood 1. The auxiliary air inlet 13 is located at a first position, a second portion is formed between the first main air inlet 11 and the auxiliary air inlet 13, and a third portion is formed between the second main air inlet 12 and the auxiliary air inlet 13.

[0043] Optionally, the filter assembly 2 further includes a third filter 23 , which is installed at the auxiliary air inlet 13 .

[0044] Optionally, the mesh structure includes a first mesh group 311 and a second mesh group 312, and a first plate 313 is formed between the first mesh group 311 and the second mesh group 312. When the movable mesh plate 31 is in the first position, the second mesh group 312 is located above the first filter 21, and the first mesh group 311 is located above the third filter 23; when the movable mesh plate 31 is in the second position, the second mesh group 312 is located above the third filter 23, and the first mesh group 311 is located above the second filter 22; when the movable mesh plate 31 is in the third position, the first plate 313 is located above the third filter 23, the first mesh group 311 is located above the third part, and the second mesh group 312 is located above the second part. By providing the auxiliary air inlet 13 and configuring the mesh structure as the first mesh group 311 and the second mesh group 312, when the single-side cooker is turned on, the negative pressure area of the range hood for absorbing oil smoke is further expanded, so that the area for oil smoke to enter the range hood is larger, thereby further reducing the escape of oil smoke.

[0045] Optionally, the first mesh group 311 has a second plate 314 on the side away from the first plate 313, and the second mesh group 312 has a third plate 315 on the side away from the first plate 313. When the movable mesh plate 31 is in the third position, the second plate 314 is located above the second filter 22, and the third plate 315 is located above the first filter 21, so that the movable mesh plate 31 can be better used as a condensation plate.

[0046] Optionally, the portion of the first filter 21 near the third filter 23 is a first filter portion, which is tilted downward from the side away from the third filter 23 to the side near the third filter 23. The portion of the second filter 22 near the third filter 23 is a second filter portion, which is tilted downward from the side away from the third filter 23 to the side near the third filter 23. The movable screen 31 is shaped like an arc. When the movable screen 31 is in the third position, the movable screen 31 bends downward from both ends to the middle. The arc shape of the movable screen 31 facilitates avoiding the first filter 21 and the second filter 22 during movement, preventing the movable screen 31 from colliding with the first filter 21 and the second filter 22 during movement, thereby facilitating the miniaturization of the range hood.

[0047] Optionally, when the movable mesh plate 31 is in the third position, the third plate 315 is located above the first filter part, and the second plate 314 is located above the second filter part. On the one hand, it is beneficial for the oil smoke to enter the range hood through the first filter 21 and the second filter 22; on the other hand, it is beneficial for the oil smoke to adhere to the movable mesh plate 31, filtering and condensing the oil smoke.

[0048] Optionally, the range hood further includes a chassis 4 and a turbine structure 5 disposed within the chassis 4. The chassis 4 is mounted on the fume hood 1, and the movable filter structure 3 is disposed between the turbine structure 5 and the fume hood 1. Since the turbine is also arc-shaped, the movable mesh plate 31 disposed in an arc-shaped surface can also avoid the turbine, further facilitating the miniaturization of the range hood.

[0049] Specifically, when the movable screen plate 31 is located at the third position, the turbine structure 5 is located directly above the movable screen plate 31 .

[0050] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all fall within the scope of protection of the present invention.

Claims

1. A range hood, characterized in that: include: A smoke collecting hood (1) is provided with a first main air inlet (11) and a second main air inlet (12), wherein a first portion is formed between the first main air inlet (11) and the second main air inlet (12); A filter assembly (2) comprising a first filter (21) and a second filter (22), wherein the first filter (21) is installed at the first main air inlet (11), and the second filter (22) is installed at the second main air inlet (12); a movable filter screen structure (3) mounted on the smoke hood (1) and located above the first filter screen (21) and the second filter screen (22); the movable filter screen structure (3) comprises a mesh structure; the movable filter screen structure (3) is movable relative to the smoke hood (1) between a first position, a second position, and a third position; when the movable filter screen structure (3) is located at the first position, the mesh structure is located above the first filter screen (21); when the movable filter screen structure (3) is located at the second position, the mesh structure is located above the second filter screen (22); When the movable filter screen structure (3) is located at the third position, the mesh structure is located above the first portion, the mesh structure includes a first mesh group (311) and a second mesh group (312), a first plate (313) is formed between the first mesh group (311) and the second mesh group (312), a second plate (314) is provided on the side of the first mesh group (311) away from the first plate (313), and a third plate (315) is provided on the side of the second mesh group (312) away from the first plate (313), when the movable filter screen structure (3) is located at the third position, the second plate (314) is located above the second filter screen (22), and the third plate (315) is located above the first filter screen (21), and further includes a chassis (4) and a turbine structure (5) arranged in the chassis (4), the chassis (4) being mounted on the smoke hood (1), and the movable filter screen structure (3) being arranged between the turbine structure (5) and the smoke hood (1).

2. The range hood according to claim 1, characterized in that: The movable filter structure (3) comprises a driving structure mounted on the smoke hood (1) and a movable mesh plate (31) connected to the driving structure in a transmission manner. The driving structure is capable of driving the movable mesh plate (31) to move relative to the smoke hood (1) between the first position, the second position and the third position. The mesh structure is provided on the movable mesh plate (31).

3. The range hood according to claim 2, characterized in that: The driving structure comprises a motor (32) and a rack and pinion transmission assembly, wherein the motor (32) is mounted on the smoke hood (1), and the motor (32) drives the movable screen (31) to move relative to the smoke hood (1) between the first position, the second position, and the third position via the rack and pinion transmission assembly.

4. The range hood according to claim 3, characterized in that: The rack and pinion transmission assembly comprises a gear and a rack (316) meshing and connected to the gear, the gear being mounted on the output end of the motor (32), and the rack (316) being mounted on one of the front side and the rear side of the movable screen (31).

5. The range hood according to claim 4, characterized in that: The movable filter structure (3) further comprises a guide member (33), wherein the guide member (33) is mounted on the smoke collecting hood (1); one of the front side and the rear side of the movable screen plate (31) is connected to the motor (32) via the gear rack transmission assembly, and the other is connected to the guide member (33) in a sliding manner.

6. The range hood according to claim 2, characterized in that: It also includes an oil cup (6), which is arranged on the lower side of the rear portion of the smoke collecting hood (1), and the movable screen plate (31) is arranged to tilt downward from the front side to the rear side.

7. The range hood according to any one of claims 2 to 6, characterized in that: The smoke hood (1) is also provided with an auxiliary air inlet (13), which is located at the first position, a second portion is formed between the first main air inlet (11) and the auxiliary air inlet (13), and a third portion is formed between the second main air inlet (12) and the auxiliary air inlet (13).

8. The range hood according to claim 7, characterized in that: The filter assembly (2) further includes a third filter (23), and the third filter (23) is installed at the auxiliary air inlet (13).

9. The range hood according to claim 8, characterized in that: When the movable screen (31) is located at the first position, the second mesh group (312) is located above the first filter (21), and the first mesh group (311) is located above the third filter (23); when the movable screen (31) is located at the second position, the second mesh group (312) is located above the third filter (23), and the first mesh group (311) is located above the second filter (22); when the movable screen (31) is located at the third position, the first plate (313) is located above the third filter (23), the first mesh group (311) is located above the third portion, and the second mesh group (312) is located above the second portion.

10. The range hood according to claim 9, characterized in that: The portion of the first filter (21) close to the third filter (23) is a first filter portion, and the first filter portion is tilted downward from the side away from the third filter (23) to the side close to the third filter (23). The portion of the second filter (22) close to the third filter (23) is a second filter portion, and the second filter portion is tilted downward from the side away from the third filter (23) to the side close to the third filter (23). The shape of the movable screen (31) is an arc surface. When the movable screen (31) is located at the third position, the movable screen (31) is bent downward from both ends to the middle, and the third plate (315) is located above the first filter portion, and the second plate (314) is located above the second filter portion.

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