Range hood and kitchen system comprising same

Abstract

The utility model provides an extractor hood and a kitchen system including the extractor hood, wherein the extractor hood comprises a fume collecting hood, a cleaning piece and a driving piece, the cleaning piece and the driving piece are both located in the fume collecting hood and arranged on a first surface of the fume collecting hood, the driving piece comprises a motor, a driving part and a moving part, the driving part and the moving part are meshed with each other, and the motor is connected to the first surface. Relative movement is generated between the driving part and the moving part and is used for driving the cleaning piece to move; the part, close to the rear side face of the range hood, of the first surface is connected with an oil receiving box, and the movement path of the cleaning piece and / or the extending direction of the first surface face / faces the interior of a containing cavity of the oil receiving box. Relative movement is generated between the driving part and the moving part through the motor, so that the cleaning piece can be driven to move on the first surface through the driving part or the moving part connected with the cleaning piece, and then oil dirt can flow into the containing cavity of the oil receiving box under the driving of the cleaning piece.

Description

Technical Field

[0001] The utility model relates to a range hood and a kitchen system comprising the range hood. Background Art

[0002] A lot of oil smoke is generated during cooking in the kitchen. These oil smoke are sucked away by the range hood and discharged to the outside through the pipe. Then, when the oil smoke passes through the range hood, especially when the impeller rotates at high speed, it will be precipitated. The precipitated grease flows downward along the wall under the action of gravity, and finally drips onto the inner surface of the smoke collecting chamber, and then flows down along the inner surface into the oil collecting box. When the temperature is low in winter, the grease condenses quickly and sticks to the inner surface of the smoke hood. Since the inner surface of the smoke hood is out of sight, it is difficult to clean it. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the defect that the inner surface of the smoke collecting hood in the prior art is difficult to clean, and to provide a range hood and a kitchen system including the range hood.

[0004] The utility model solves the above technical problems through the following technical solutions:

[0005] The utility model discloses a range hood, the range hood comprising a fume hood, a cleaning member and a driving member, the cleaning member and the driving member are both located in the fume hood and arranged on a first surface of the fume hood, the driving member comprises a motor, a driving part and a moving part that mesh with each other, the motor is connected to the first surface, a relative motion is generated between the driving part and the moving part, and is used to drive the cleaning member to move;

[0006] The portion of the first surface close to the rear side of the range hood is connected to an oil collecting box, and the movement path of the cleaning member and / or the extension direction of the first surface is toward the accommodating cavity of the oil collecting box.

[0007] In this solution, a relative movement is generated between the driving part and the moving part by a motor, so that the cleaning part can be driven to move on the first surface by the driving part or the moving part connected to the cleaning part, and then the oil can flow into the accommodating cavity of the oil receiving box under the drive of the cleaning part. With the above-mentioned structural form, the cleaning part can clean the oil on the first surface in time, ensuring the cleanliness of the first surface. In addition, the engagement of the first sawtooth and the second sawtooth improves the stability and reliability of the movement of the moving part and the driving part, thereby also improving the stability and reliability of the movement of the cleaning part, which is conducive to the cleaning part being able to clean the oil on the first surface in time, and then helps to ensure the cleanliness of the first surface.

[0008] Preferably, in the width direction of the range hood, the first surface extends obliquely upward from the rear side of the range hood in a direction away from the rear side.

[0009] In the present solution, the above-mentioned structural form is adopted. When the cleaning piece is cleaning the grease, the movement of the cleaning piece can make the grease on the first surface gather and flow along the inclined direction of the first surface toward the rear side of the range hood, and finally flow into the oil collecting box, thereby preventing the grease from condensing on the first surface, improving the cleaning degree of the cleaning piece on the first surface, and ensuring the cleanliness of the first surface.

[0010] Preferably, one of the driving part and the moving part is connected to the motor, and the other is connected to the cleaning member, the driving part is provided with a first sawtooth on at least a surface facing the moving part, the moving part is rotatably connected to the first surface, and the outer peripheral surface of the moving part is provided with a second sawtooth meshing with the first sawtooth.

[0011] In the present embodiment, the above-mentioned structural form is adopted to enable relative movement between the driving part and the moving part, so that the cleaning part can be driven to move on the first surface by the driving part or the moving part connected to the cleaning part, and then the oil stains can flow into the accommodating cavity of the oil collecting box under the drive of the cleaning part.

[0012] Preferably, a third sawtooth for engaging with the motor is provided in the middle of the driving portion, and the third sawtooth has the same extension direction as the first sawtooth. Along the extension direction of the driving portion, the second sawtooth is provided at both ends of the driving portion.

[0013] In this solution, the above-mentioned structural form is adopted, the motor drives the driving part to move, and the multiple moving parts are engaged with the two ends of the driving part, so that the driving part drives each moving part to move, increases the cleaning area of ​​the cleaning part, and thus improves the efficiency of cleaning the first surface. Specifically, the cross section of the moving part is circular, and the driving part is engaged with the outer peripheral surface of the moving part, so when the motor drives the driving part, the driving part can apply a tangential force to the moving part, so that the moving part itself can be rotated while also driving the cleaning part to rotate, so that the first surface can be cleaned by the cleaning part.

[0014] Preferably, a positioning piece is provided on the first surface, and the positioning piece cooperates with the cleaning piece to limit the movement of the cleaning piece.

[0015] In this solution, the above-mentioned structural form is adopted. When the cleaning member moves relative to the first surface, the operator can obtain the position of the cleaning member or the required displacement based on the positioning member, thereby improving the stability and reliability of the movement of the cleaning member.

[0016] Preferably, the positioning member is provided with a connecting surface and a limiting surface, the positioning member is stepped so that the connecting surface is higher than the limiting surface in the vertical direction, the connecting surface is used to connect the motor, the height of the limiting surface is adapted to the height of the cleaning member, and the limiting surface is used to abut against the cleaning member to limit the movement of the cleaning member.

[0017] In this solution, the above-mentioned structural form is adopted, and the heights of the connecting surface and the limiting surface are different, which can prevent the motor from interfering with the cleaning member during the movement of the cleaning member, thereby improving the stability and reliability of the movement of the cleaning member. In addition, the height of the limiting surface is adapted to the height of the cleaning member, so when the cleaning member rotates to the limiting surface, the limiting surface abuts against the cleaning member, thereby preventing the cleaning member from continuing to rotate through the limiting surface, and then preventing the cleaning member from interfering with other components, thereby helping to improve the stability and reliability of the movement of the cleaning member.

[0018] Preferably, an air inlet is provided on a portion of the first surface close to the front side of the range hood, and the cleaning member is connected to a side of the first surface away from the air inlet;

[0019] The movement path of the cleaning member does not coincide with the air inlet surface of the air inlet.

[0020] In this solution, the above-mentioned structural form is adopted to prevent the oil stains from dripping from the air outlet when the cleaning piece is cleaning the oil stains.

[0021] Preferably, the surface of the cleaning member facing the first surface is serrated.

[0022] In this solution, the above-mentioned structural form is adopted to reduce the friction resistance between the cleaning piece and the first surface, and multiple hanging strips can be formed on the first surface, thereby improving the grease scraping efficiency of the cleaning piece.

[0023] Preferably, the cleaning member comprises a body and a brush strip, wherein one of the body and the brush strip is provided with a mounting groove, and the other is provided with a protrusion matching with the mounting groove, and the brush strip is used to contact the first surface.

[0024] In this solution, the above-mentioned structural form is adopted to increase the connection area between the brush strip and the body, and improve the stability of the connection between the brush strip and the body.

[0025] The utility model also discloses a kitchen system, which comprises the range hood as described in any one of the above items.

[0026] In this solution, a relative movement is generated between the driving part and the moving part by a motor, so that the cleaning part can be driven to move on the first surface by the driving part or the moving part connected to the cleaning part, and the oil stains can flow into the accommodating cavity of the oil receiving box by the driving of the cleaning part. With the above-mentioned structural form, the cleaning part can clean the oil stains on the first surface in time, ensuring the cleanliness of the first surface. In addition, the engagement of the first sawtooth and the second sawtooth improves the stability and reliability of the movement of the moving part and the driving part, thereby improving the stability and reliability of the movement of the cleaning part, which is conducive to the cleaning part being able to clean the oil stains on the first surface in time, and thus is conducive to ensuring the cleanliness of the first surface.

[0027] The positive and progressive effects of the utility model are:

[0028] The motor causes relative movement between the driving part and the moving part, so that the cleaning part can be driven to move on the first surface by the driving part or the moving part connected to the cleaning part, and the oil stains can flow into the accommodating cavity of the oil receiving box through the driving of the cleaning part. With the above-mentioned structural form, the cleaning part can clean the oil stains on the first surface in time, ensuring the cleanliness of the first surface. In addition, the engagement of the first sawtooth and the second sawtooth improves the stability and reliability of the movement of the moving part and the driving part, thereby improving the stability and reliability of the movement of the cleaning part, which is conducive to the cleaning part being able to clean the oil stains on the first surface in time, and thus is conducive to ensuring the cleanliness of the first surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic structural diagram of a range hood according to an embodiment of the utility model.

[0030] Figure 2 The figure is a schematic cross-sectional view of the range hood according to an embodiment of the utility model.

[0031] Figure 3 It is a partial structural schematic diagram of a range hood according to an embodiment of the utility model.

[0032] Figure 4 It is a partial schematic diagram of a range hood according to an embodiment of the utility model.

[0033] Figure 5 It is a partial three-dimensional structural schematic diagram of a range hood according to an embodiment of the utility model.

[0034] Figure 6 It is a structural schematic diagram of a positioning member according to an embodiment of the utility model.

[0035] Description of reference numerals:

[0036] Range hood 100

[0037] Fume hood 1

[0038] First surface 11

[0039] Air Inlet 111

[0040] Cleaning piece 2

[0041] Ontology 21

[0042] Mounting slot 211

[0043] Brush bar 22

[0044] Protrusion 221

[0045] Drive 3

[0046] Motor 31

[0047] Driving unit 32

[0048] First sawtooth 321

[0049] The third sawtooth 322

[0050] Sports Department 33

[0051] Second sawtooth 331

[0052] Oil box 4

[0053] Positioning piece 5

[0054] Connection surface 51

[0055] Limiting surface 52

[0056] Length direction L of the range hood

[0057] Width direction W of the range hood

[0058] Height direction H of range hood DETAILED DESCRIPTION

[0059] A preferred embodiment is given below, and the present invention is described more clearly and completely in conjunction with the accompanying drawings.

[0060] like Figures 1 to 6As shown, the present embodiment provides a range hood 100, which includes a smoke collecting hood 1, a cleaning member 2 and a driving member 3. The cleaning member 2 and the driving member 3 are both located in the smoke collecting hood 1 and are arranged on the first surface 11 of the smoke collecting hood 1. The driving member 3 includes a motor 31, a driving portion 32 and a moving portion 33 that are meshed with each other. The motor 31 is connected to the first surface 11, and one of the driving portion 32 and the moving portion 33 is connected to the motor 31 and the other is connected to the cleaning member 2. Relative motion is generated between the driving portion 32 and the moving portion 33 to drive the cleaning member 2 to move. The first surface 11 is close to the rear side of the range hood 100 and is connected to an oil receiving box 4. For the extension direction of the first surface 11 and the cleaning member 2, the oil receiving box 4 is connected to the oil receiving box 4. The movement path of the cleaning member 2 can be implemented in the following ways: in the first way, the extension direction of the first surface 11 is toward the accommodating cavity of the oil receiving box 4. At this time, when the cleaning member 2 cleans the first surface 11, the oil collected by the cleaning member 2 during the movement can flow along the extension direction of the first surface 11 and finally flow into the accommodating cavity of the oil receiving box 4; in the second way, the movement path of the cleaning member 2 is toward the accommodating cavity of the oil receiving box 4. At this time, the oil can be directly collected by the cleaning member 2 and directly flow into the accommodating cavity of the oil receiving box 4 driven by the cleaning member 2; in the third way, the movement path of the cleaning member 2 and the extension direction of the first surface 11 are toward the accommodating cavity of the oil receiving box 4. In this embodiment, the extension direction of the first surface 11 is toward the accommodating cavity of the oil receiving box 4. Specifically, in the width direction of the range hood 100, the first surface 11 extends upward from the rear side of the range hood 100 in an inclined direction away from the rear side. With the above-mentioned structure, the motor 31 causes relative movement between the driving part 32 and the moving part 33, so that the cleaning part 2 can be driven to move on the first surface 11 by the driving part 32 or the moving part 33 connected to the cleaning part 2, and the oil can flow into the accommodating cavity of the oil receiving box 4 through the driving of the cleaning part 2. With the above-mentioned structure, the cleaning part 2 can clean the oil on the first surface 11 in time, ensuring the cleanliness of the first surface 11. In addition, the engagement of the first sawtooth 321 and the second sawtooth 331 improves the stability and reliability of the movement of the moving part 33 and the driving part 32, thereby also improving the stability and reliability of the movement of the cleaning part 2, which is conducive to the cleaning part 2 being able to clean the oil on the first surface 11 in time, and thus is conducive to ensuring the cleanliness of the first surface 11.

[0061] It should be noted that, in this embodiment, the first surface 11 is arranged at the air inlet end of the range hood 100 facing the stove. In other embodiments, the position of the first surface 11 can be adjusted according to actual needs, and the specific setting position of the first surface 11 is not set here.

[0062] In this embodiment, if Figure 1As shown, by utilizing the inclined direction of the first surface 11 and the movement of the cleaning member 2, the grease can be gathered and flowed, and then can flow into the oil receiving box 4 along the inclined direction of the first surface 11. In other embodiments, if the first surface 11 extends in a horizontal direction, in other words, if the heights of both ends of the first surface 11 in the width direction of the range hood 100 are consistent. At this time, the grease can be directly brushed into the oil receiving box 4 by the cleaning member 2. Of course, in other embodiments, the inclined direction of the first surface 11 and the movement path of the cleaning member 2 toward the accommodating cavity of the oil receiving box 4 can also be utilized to increase the flow speed of the grease.

[0063] like Figures 2 to 4 As shown, the driving part 32 and the moving part 33, one of which is connected to the motor 31, and the other is connected to the cleaning member 2, the driving part 32 is provided with a first sawtooth 321 at least on the surface facing the moving part 33, the moving part 33 is rotatably connected to the first surface 11, and the outer peripheral surface of the moving part 33 is provided with a second sawtooth 331 meshing with the first sawtooth 321. The above-mentioned structural form enables relative movement between the driving part 32 and the moving part 33, so that the cleaning member 2 can be driven to move on the first surface 11 by the driving part 32 or the moving part 33 connected to the cleaning member 2, and then the oil can flow into the accommodating cavity of the oil receiving box 4 under the drive of the cleaning member 2.

[0064] See also Figures 2 to 4 It is understood that in this embodiment, the driving part 32 is meshed and connected with the motor 31, and the moving part 33 is connected with the cleaning member 2. Specifically, a third sawtooth 322 for meshing with the motor 31 is provided in the middle of the driving part 32, and the third sawtooth 322 has the same extension direction as the first sawtooth 321, and along the extension direction of the driving part 32, the second sawtooth 331 is provided at both ends of the driving part 32. With the above-mentioned structural form, the motor 31 drives the driving part 32 to move, and the plurality of moving parts 33 are meshed with the two ends of the driving part 32, so that the driving part 32 drives each moving part 33 to move, thereby increasing the cleaning area of ​​the cleaning member 2, and thus improving the efficiency of cleaning the first surface 11. Specifically, the cross section of the moving part 33 is circular, and the driving part 32 is engaged with the outer peripheral surface of the moving part 33, so when the motor 31 drives the driving part 32, the driving part 32 can apply a tangential force to the moving part 33, so that the moving part 33 itself can be rotated, and the cleaning part 2 can also be driven to rotate, thereby the first surface 11 can be cleaned by the cleaning part 2. Adopt the above-mentioned structural form, the motor 31 drives the driving part 32 to move, thereby drives each moving part 33 to move by the driving part 32, increases the cleaning area of ​​the cleaning part 2, and then improves the efficiency of the first surface 11 cleaning. In other embodiments, it can also be that the driving part 32 is connected with the cleaning part 2, and the moving part 33 is connected with the motor 31.

[0065] It should be specifically noted that, in this embodiment, the number of the moving parts 33 is two, and the two moving parts 33 are respectively engaged with the two ends of the driving part 32 along the extension direction of the driving part 32. At this time, the tangential force applied by the driving part 32 to each moving part 33 is in the same direction, so that the direction and frequency of each moving part 33 are consistent, and thus there is no cross contact between the two moving parts 33, thereby improving the stability and reliability of the movement of the two moving parts 33. In other embodiments, the number of moving parts 33 can be adjusted according to actual needs, and the specific number of moving parts 33 is not limited here.

[0066] like Figures 2 to 4 as well as Figure 6 As shown, a positioning member 5 is provided on the first surface 11, and the positioning member 5 cooperates with the cleaning member 2 to detect the position of the cleaning member 2 and limit the movement of the cleaning member 2. With the above-mentioned structural form, when the cleaning member 2 moves relative to the first surface 11, the operator can obtain the position of the cleaning member 2 or the required displacement based on the positioning member 5, thereby improving the stability and reliability of the movement of the cleaning member 2. In other embodiments, the positioning member 5 can limit the cleaning member 2 to prevent the cleaning member 2 from interfering with other components, thereby helping to improve the stability and reliability of the movement of the cleaning member 2.

[0067] See also Figure 6 It is understood that the positioning member 5 is provided with a connecting surface 51 and a limiting surface 52, and the positioning member 5 is stepped so that the connecting surface 51 is higher than the limiting surface 52 in the vertical direction, and the connecting surface 51 is used to connect the motor 31, and the height of the limiting surface 52 is adapted to the height of the cleaning member 2, and the limiting surface 52 is used to abut against the cleaning member 2 to limit the movement of the cleaning member 2. Adopting the above-mentioned structural form, the height of the connecting surface 51 is different from the limiting surface 52, which can prevent the motor 31 from interfering with the cleaning member 2 during the movement of the cleaning member 2, thereby improving the stability and reliability of the movement of the cleaning member 2. In addition, the height of the limiting surface 52 is adapted to the height of the cleaning member 2, so when the cleaning member 2 rotates to the limiting surface 52, the limiting surface 52 abuts against the cleaning member 2, thereby preventing the cleaning member 2 from continuing to rotate through the limiting surface 52, and then preventing the cleaning member 2 from interfering with other components, thereby helping to improve the stability and reliability of the movement of the cleaning member 2.

[0068] In this embodiment, the motor 31 is engaged with the middle of the driving part 32, so the positioning member 5 is also arranged in the middle of the driving part 32, so that the rotation of at least two cleaning members 2 can be limited by one positioning member 5. In other embodiments, the setting position and setting number of the positioning member 5 can be adjusted according to actual needs, which is not limited here.

[0069] In other embodiments, the positioning member 5 may also include a first limit positioning portion and a second limit positioning portion, which are arranged on the movement path of the cleaning member 2 and correspond to the front limit position and the rear limit position, respectively. When the cleaning member 2 moves to the front limit position and the rear limit position, the first limit positioning portion or the second limit positioning portion is triggered to control the cleaning member 2 to not move forward or backward any further. The above-mentioned structural form is adopted to avoid the cleaning member 2 moving beyond the limit position to cause the cleaning member 2 to collide with other components, thereby improving the safety and stability of the cleaning member 2.

[0070] It should be specifically explained that the moving path of the cleaning member 2 mentioned above refers to the path swept by the cleaning member 2 on the first surface 11 when the cleaning member 2 rotates relative to the first surface 11.

[0071] like Figure 1 and Figure 2 As shown, the first surface 11 is provided with an air inlet 111 at a portion close to the front side of the range hood 100, and the cleaning member 2 is connected to a side of the first surface 11 away from the air inlet 111; the movement path of the cleaning member 2 does not overlap with the air inlet surface of the air inlet 111. The above-mentioned structural form can prevent the cleaning member 2 from dripping from the air outlet when cleaning oil stains.

[0072] In this embodiment, if Figure 4 and Figure 5 As shown, the surface of the cleaning member 2 facing the first surface 11 is serrated, which reduces the friction resistance between the cleaning member 2 and the first surface 11, and can form multiple hanging strips on the first surface 11, thereby improving the grease scraping efficiency of the cleaning member 2. In other embodiments, the surface of the cleaning member 2 facing the first surface 11 can also be made of an oil-absorbing material, so that when the cleaning member 2 moves, it can absorb the grease on the first surface 11, thereby improving the cleaning effect.

[0073] like Figure 5 As shown, the cleaning member 2 includes a body 21 and a brush strip 22, one of which is provided with a mounting groove 211, and the other is provided with a protrusion 221 that matches the mounting groove 211, and the brush strip 22 is used to contact the first surface 11. The above structure increases the connection area between the brush strip 22 and the body 21, and improves the stability of the connection between the brush strip 22 and the body 21.

[0074] In this embodiment, the body 21 is provided with a mounting groove 211, and the brush strip 22 is provided with a protrusion 221 matching the mounting groove 211. In other embodiments, the body 21 is provided with a protrusion 221, the brush strip 22 is provided with a mounting groove 211, and the protrusion 221 is clamped in the mounting groove 211.

[0075] The present embodiment also provides a kitchen system, which includes a range hood 100. Specifically, the motor 31 causes relative movement between the driving part 32 and the moving part 33, so that the cleaning part 2 can be driven to move on the first surface 11 by the driving part 32 or the moving part 33 connected to the cleaning part 2, and then the oil can flow into the accommodating cavity of the oil receiving box 4 driven by the cleaning part 2. With the above-mentioned structural form, the cleaning part 2 can clean the oil on the first surface 11 in time, ensuring the cleanliness of the first surface 11. In addition, the engagement of the first sawtooth 321 and the second sawtooth 331 improves the stability and reliability of the movement of the moving part 33 and the driving part 32, thereby also improving the stability and reliability of the movement of the cleaning part 2, which is beneficial for the cleaning part 2 to clean the oil on the first surface 11 in time, thereby ensuring the cleanliness of the first surface 11.

[0076] In actual use, the kitchen system is a combination of common kitchen appliances such as a range hood 100 and a stove that are commonly used in daily kitchens.

[0077] Although the specific implementations of the utility model are described above, those skilled in the art should understand that this is only an example, and the protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these implementations without departing from the principle and essence of the utility model, but these changes and modifications fall within the protection scope of the utility model.

Claims

1. A range hood, characterized in that: The range hood comprises a fume hood, a cleaning member and a driving member, wherein the cleaning member and the driving member are both located in the fume hood and arranged on a first surface of the fume hood, and the driving member comprises a motor, a driving part and a moving part that mesh with each other, the motor is connected to the first surface, and a relative motion is generated between the driving part and the moving part to drive the cleaning member to move; The portion of the first surface close to the rear side of the range hood is connected to an oil collecting box, and the movement path of the cleaning member and / or the extension direction of the first surface is toward the accommodating cavity of the oil collecting box.

2. The range hood according to claim 1, characterized in that: In the width direction of the range hood, the first surface extends obliquely upward from the rear side of the range hood in a direction away from the rear side.

3. The range hood according to claim 1, characterized in that: The driving part and the moving part, one of which is connected to the motor, and the other is connected to the cleaning part, the driving part is provided with a first sawtooth at least on the surface facing the moving part, the moving part is rotatably connected to the first surface, and the outer peripheral surface of the moving part is provided with a second sawtooth meshing with the first sawtooth.

4. The range hood according to claim 3, characterized in that: A third sawtooth for engaging with the motor is provided in the middle of the driving part. The third sawtooth has the same extension direction as the first sawtooth. Along the extension direction of the driving part, the second sawtooth is provided at both ends of the driving part.

5. The range hood according to claim 1, characterized in that: A positioning piece is disposed on the first surface, and the positioning piece cooperates with the cleaning piece to limit the movement of the cleaning piece.

6. The range hood according to claim 5, characterized in that: The positioning member is provided with a connecting surface and a limiting surface. The positioning member is stepped so that the connecting surface is higher than the limiting surface in the vertical direction. The connecting surface is used to connect the motor. The height of the limiting surface is matched with the height of the cleaning member. The limiting surface is used to abut against the cleaning member to limit the movement of the cleaning member.

7. The range hood according to claim 1, characterized in that: An air inlet is formed on a portion of the first surface close to the front side of the range hood, and the cleaning member is connected to a side of the first surface away from the air inlet; The movement path of the cleaning member does not coincide with the air inlet surface of the air inlet.

8. The range hood according to claim 1, characterized in that: The surface of the cleaning member facing the first surface is serrated.

9. The range hood according to claim 1, characterized in that: The cleaning piece comprises a body and a brush strip, wherein one of the body and the brush strip is provided with a mounting groove, and the other is provided with a protrusion matched with the mounting groove, and the brush strip is used to contact the first surface.

10. A kitchen system, characterized in that: The kitchen system comprises the range hood according to any one of claims 1-9.

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