Oil net structure and range hood

Abstract

The utility model relates to an oil net structure and range hood. The oil net structure, including handle, outer oil net and inner oil net, the outer oil net is recessed to the back and forms the outer sunken platform, the inner oil net is recessed to the back and forms the inner sunken platform, the outer oil net is stacked with the inner oil net along the first direction to make the outer sunken platform be embedded in the inner sunken platform, the inner oil net is slidably connected with the outer oil net along the second direction to have the open and closed state, wherein, under the open state, the first vent hole on the inner oil net and the second vent hole on the outer oil net are opposite, under the closed state, the inner oil net is staggered and shields the second vent hole, the handle is connected with the inner oil net and projects into the outer sunken platform, the handle can be movable relative to the outer oil net to drive the inner oil net to slide, by embedding the handle into the outer sunken platform, the overall thickness of the oil net structure along the first direction can be reduced significantly, the space occupation is reduced, thereby the required gap between the handle and the smoke baffle can be reduced, and the light and thin design trend is met.

Description

Technical Field

[0001] This utility model relates to the technical field of range hoods, and in particular to an oil mesh structure and a range hood. Background Technology

[0002] In existing near-suction range hoods, the oil filter structure is often used to filter oil fumes and regulate airflow. Manually adjustable oil filter structures primarily rely on the relative sliding of the inner and outer oil filters to open and close the air inlet.

[0003] Currently, most handles in oil mesh structures protrude from the surface of the outer oil mesh. Therefore, in order to ensure that the baffle of the range hood does not interfere with the handle when closed, a larger gap needs to be reserved between the baffle and the outer oil mesh, which will increase the space occupied by the oil mesh structure in the thickness direction, which goes against the current design trend of making range hoods thinner and more compact. Utility Model Content

[0004] Therefore, it is necessary to provide a thinner and more compact oil mesh structure and range hood to address the problem that the current oil mesh structure occupies a large amount of space in the thickness direction.

[0005] This application provides an oil mesh structure, including a handle, an outer oil mesh, and an inner oil mesh. The outer oil mesh is recessed towards the back to form an outer recessed platform, and the inner oil mesh is recessed towards the back to form an inner recessed platform. The outer oil mesh and the inner oil mesh are stacked along a first direction so that the outer recessed platform is embedded in the inner recessed platform.

[0006] The inner oil mesh is slidably connected to the outer oil mesh along the second direction, so as to have an open and closed state. In the open state, the first ventilation hole on the inner oil mesh is directly opposite to the second ventilation hole on the outer oil mesh; in the closed state, the inner oil mesh is misaligned and blocks the second ventilation hole.

[0007] The handle is connected to the inner oil mesh and protrudes into the outer sinking platform. The handle is movable relative to the outer oil mesh to drive the inner oil mesh to slide.

[0008] In one embodiment, the oil mesh structure further includes an oil cup that is fixed relative to the outer oil mesh and located at the bottom of the outer oil mesh, and the thickness of the outer sinking platform gradually decreases towards the side closer to the oil cup along the first direction.

[0009] In one embodiment, the thickness of the portion of the handle protruding into the outer recessed platform gradually decreases towards the oil cup along the first direction, so as to form an oil guiding surface on the front of the handle.

[0010] In one embodiment, the angle between the oil guiding surface and the horizontal plane ranges from 13° to 23°.

[0011] In one embodiment, the inner bottom wall edge and the opening edge of the outer sinking platform are both chamfered, and the edge of the oil guiding surface is also chamfered.

[0012] In one embodiment, the outer recessed platform and the inner recessed platform are designed to mimic each other, and there are gaps between each surface of the outer recessed platform and each corresponding surface of the inner recessed platform.

[0013] In one embodiment, the handle includes a grip, a paddle, and a connecting part rotatably connected to the outer oil screen. The connecting part passes through the outer recessed platform and the inner recessed platform. One end of the connecting part protruding into the outer recessed platform is fixed to the grip, and the other end is fixed to the paddle.

[0014] The inner sinking platform has a limiting piece fixed on its back. The gripping part can drive the lever to rotate to drive the limiting piece, so that the inner oil screen switches between open and closed states along the second direction.

[0015] In one embodiment, the inner recessed platform has a T-shaped hole extending through it in a first direction, the connecting part extends through the T-shaped hole in a second direction, and the lever is in a detached state. In the detached state, the projection of the lever in the first direction is completely located within the extension of the T-shaped hole in a third direction.

[0016] In one embodiment, the handle is fixed to the inner wall of the recessed platform.

[0017] This application also provides a range hood, including a range hood body and the aforementioned oil mesh structure, wherein the outer oil mesh is fixed to the inner wall of the air intake of the range hood body.

[0018] The aforementioned oil mesh structure, by embedding the handle into the outer recessed platform, can significantly reduce the overall thickness of the oil mesh structure along the first direction, reduce space occupation, and thus reduce the required gap between it and the smoke baffle, which conforms to the trend of thin and light design. In addition, due to the reduced thickness of the oil mesh structure, it is easy to integrate into different range hood structures such as close-range suction range hoods, effectively improving the adaptability of the oil mesh structure of this application. Attached Figure Description

[0019] Figure 1 This is a three-dimensional view of the front of the oil mesh structure;

[0020] Figure 2 This is a perspective view of the back of the oil mesh structure in this application;

[0021] Figure 3 for Figure 2 Exploded views of the domestic and international oil networks;

[0022] Figure 4 This is a perspective view of the range hood with the smoke baffle hidden behind it, as per this application.

[0023] Figure 5 for Figure 1 A cross-sectional view of the center handle location;

[0024] Figure 6 for Figure 2 Enlarged view of point A in the middle;

[0025] Figure 7 for Figure 2 An enlarged view of one of the magnetic components.

[0026] Reference numerals: 10. Handle; 11. Grip; 111. Oil guide surface; 12. Connecting part; 13. Paddle; 131. Limiting hole; 14. Gasket; 15. Screw; 20. Outer oil mesh; 21. Second ventilation hole; 22. Outer recessed platform; 23. Second support member; 30. Inner oil mesh; 31. First ventilation hole; 32. Inner recessed platform; 321. Limiting piece; 322. T-hole; 33. Groove; 40. Oil cup; 50. Magnetic suction assembly; 51. Magnet; 52. First support member; 521. Support part; 522. Limiting post; 60. Bumper. Detailed Implementation

[0027] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0028] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0032] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0033] For ease of description, in this application, the direction of the air intake axis of the range hood is defined as the first direction, the air inlet side of the air intake is defined as the front of the oil mesh structure, the corresponding opposite side is defined as the back side, the length direction of the projection of the range hood air intake along the first direction is defined as the second direction, and the width direction of the projection of the range hood air intake along the first direction is defined as the third direction.

[0034] Please combine Figure 1 , Figure 2 as well as Figure 3As shown, this application first provides an oil mesh structure, including a handle 10, an outer oil mesh 20, and an inner oil mesh 30. The outer oil mesh 20 is recessed towards the back to form an outer recessed platform 22, and the inner oil mesh 30 is recessed towards the back to form an inner recessed platform 32. The outer oil mesh 20 and the inner oil mesh 30 are stacked along a first direction so that the outer recessed platform 22 is embedded in the inner recessed platform 32. The inner oil mesh 30 is slidably connected to the outer oil mesh 20 along a second direction to have an open and a closed state. In the open state, the first ventilation hole 31 on the inner oil mesh 30 is directly opposite to the second ventilation hole 21 on the outer oil mesh 20. In the closed state, the inner oil mesh 30 is misaligned and blocks the second ventilation hole 21. The handle 10 is connected to the inner oil mesh 30 and protrudes into the outer recessed platform 22. The handle 10 can move relative to the outer oil mesh 20 to drive the inner oil mesh 30 to slide.

[0035] In this application, by embedding the handle 10 into the outer recessed platform 22, the overall thickness of the oil mesh structure along the first direction can be significantly reduced, reducing space occupation and thus reducing the required gap between it and the smoke baffle, which conforms to the trend of thin and light design. In addition, due to the reduction in the thickness of the oil mesh structure, it is easy to integrate into different range hood structures such as close-suction range hoods, effectively improving the adaptability of the oil mesh structure of this application.

[0036] Specifically, the inner recessed platform 32 is larger in size along the second direction than the outer recessed platform 22, so as to ensure that the inner oil mesh 30 can slide relative to the outer oil mesh 20 along the second direction without interference, and to ensure that the normal opening and closing function of the ventilation hole is not affected by the recessed platform.

[0037] More specifically, the handle 10 is connected to the inner oil mesh 30. This connection can be achieved by means of a snap-fit ​​or other means, or by the handle 10 being directly fixed to the inner oil mesh 30, or by other means, as long as the handle 10 can drive the inner oil mesh 30 to slide relative to the outer oil mesh 20. In addition, the handle 10 can move relative to the outer oil mesh 20. This movement can be sliding, rotating, or a combination of sliding and rotating movements. Examples of these movements will not be listed here.

[0038] Please combine Figure 1 as well as Figure 4 As shown, in some embodiments, the oil mesh structure also includes an oil cup 40 that is fixed relative to the outer oil mesh 20 and located at the bottom of the outer oil mesh 20, and the thickness of the outer sinking platform 22 along the first direction gradually decreases towards the side closer to the oil cup 40.

[0039] By designing the thickness of the outer recessed platform 22 to gradually decrease towards the oil cup 40, an inclined surface is formed, so that oil droplets on the inclined surface of the outer recessed platform can automatically slide along the inclined surface to the lowest point on the side of the oil cup 40 under the action of gravity, avoiding the accumulation of oil droplets in the recessed area of ​​the outer recessed platform 22 to form oil stains, thereby reducing the cleaning frequency.

[0040] Please combine Figure 1 as well as Figure 5 As shown, in some embodiments, the thickness of the portion of the handle 10 protruding into the outer recess 22 gradually decreases towards the oil cup 40 along the first direction, so as to form an oil guiding surface 111 on the front of the handle 10.

[0041] In this application, by designing the part of the handle 10 protruding into the outer recessed platform 22 with a thickness that gradually decreases towards the oil cup 40, an inclined oil guiding surface 111 is formed. Compared with the handle 10 with a thickness that gradually decreases towards the oil cup 40, which is designed directly on the front of the outer oil mesh 20, the former can combine the recessed structure of the outer recessed platform 22 and increase the angle between the oil guiding surface 111 and the horizontal plane, so that the tilt angle is significantly greater than the latter. The larger tilt angle can use gravity to accelerate the oil droplet sliding speed and reduce the occurrence of oil accumulation and midway dripping.

[0042] In some embodiments, the angle between the oil guiding surface 111 and the horizontal plane ranges from 13° to 23°.

[0043] In traditional handles, the angle between the oil guiding surface and the horizontal plane is about 9°. In this application, the angle between the oil guiding surface 111 and the horizontal plane is limited to 13°~23°. The lower limit of 13° can ensure that the oil droplets can overcome the surface tension and slide off, significantly reducing the probability of oil droplets adhering to the oil guiding surface 111. The upper limit of 23° can avoid the sinking platform from being too deep due to the excessive angle, ensuring the compactness of the oil mesh structure.

[0044] Preferably, in some embodiments, the angle between the oil guiding surface 111 and the horizontal plane is 18°.

[0045] Please combine Figure 1 as well as Figure 5 As shown, in some embodiments, the inner bottom wall edge and opening edge of the outer sink 22 are chamfered, and the edge of the oil guiding surface 111 is also chamfered. The chamfer design can eliminate physical sharp edges and reduce the risk of injury from human contact; on the other hand, it can destroy the capillary adhesion effect of the oil, allowing the oil to slide naturally along the chamfered curved surface, reducing the adhesion residue of oil at the corner position and improving the oil guiding efficiency.

[0046] Please refer to Figure 5 As shown, in some embodiments, the outer recessed platform 22 and the inner recessed platform 32 are designed to mimic each other, and there are gaps between each surface of the outer recessed platform 22 and each corresponding surface of the inner recessed platform 32.

[0047] By setting gaps to eliminate structural interference, direct contact and friction between the inner sinking platform 32 and the outer sinking platform 22 are avoided, ensuring the sliding freedom between the two, thereby effectively reducing the resistance encountered by the inner oil network 30 during state switching.

[0048] In addition, it can also reserve a certain amount of thermal expansion and contraction deformation allowance for the inner and outer oil meshes, thereby improving the overall reliability of the oil mesh structure.

[0049] Please combine Figure 5 as well as Figure 6 As shown, in some embodiments, the handle 10 includes a grip portion 11, a paddle 13, and a connecting portion 12 rotatably connected to the outer oil screen 20. The connecting portion 12 passes through the outer recessed platform 22 and the inner recessed platform 32. One end of the connecting portion 12 protruding into the outer recessed platform 22 is fixed to the grip portion 11, and the other end is fixed to the paddle 13.

[0050] The inner sinking platform 32 has a limit plate 321 fixed on its back. The gripping part 11 can drive the lever 13 to rotate to drive the limit plate 321, so that the inner oil screen 30 switches between open and closed states along the second direction.

[0051] By clamping the inner oil mesh 30 between the paddle 13 and the outer oil mesh 20, the paddle 13 can not only cooperate with the limiting piece 321 to adjust the sliding of the inner oil mesh 30, but also form a constraint inside the inner oil mesh 30 to cooperate with the outer oil mesh 20 to restrict the movement of the inner oil mesh 30 in the first direction, thereby improving the rigidity inside the inner oil mesh 30 and reducing the risk of sliding deformation, avoiding the situation where the handle 10 and the outer oil mesh 20 interfere and rub against each other due to the deformation of the inner oil mesh 30.

[0052] Furthermore, the limiting clamping structure achieved by the lever 13 and the outer oil mesh 20 only increases the thickness of the lever 13 along the first direction, and occupies less space along the first direction, making it more suitable for compact and lightweight designs.

[0053] Specifically, the outer oil mesh 20 and the inner oil mesh 30 form a sliding pair along the second direction. The connecting part 12 is fixed to the lever 13 so that the lever 13 can be driven to move through the connecting part 12. The limiting piece 321 is fixed to the back of the inner recessed platform 32. By the lever 13 abutting against the limiting piece 321, the movement of the lever 13 is converted into the sliding of the inner oil mesh 30 along the second direction. That is to say, when the user drives the handle 10, the lever 13 pushes the inner oil mesh 30 to slide along the second direction through the limiting piece 321, thereby adjusting the overlapping state of the first ventilation hole 31 and the second ventilation hole 21.

[0054] In some embodiments, the paddle 13 and the connecting portion 12 are detachably fixed (e.g., by a snap-fit, thread, etc.) to reduce assembly difficulty and increase maintainability.

[0055] Furthermore, in some embodiments, the paddle 13 is sleeved on the connecting portion 12 through its own limiting hole 131, and the outer wall of the connecting portion 12 abuts against the inner wall of the limiting hole 131 in the circumferential direction to restrict the paddle 13 from rotating relative to the connecting portion 12.

[0056] The handle 10 also includes a washer 14 and a screw 15. The washer 14 is sleeved on the connecting part 12 and located between the paddle 13 and the protrusion on the outer wall of the connecting part 12. The screw 15 is threadedly connected to the connecting part 12 in a first direction to cooperate with the washer 14 to restrict the movement of the paddle 13 in the first direction.

[0057] The rigid positioning of the limit hole 131 of the paddle 13 and the outer wall of the connecting part 12, as well as the adjustable clamping structure of the gasket 14 and the screw 15, ensure that the paddle 13 and the connecting part 12 are double fixed in the circumferential and axial directions. This prevents the connection between the paddle 13 and the handle 10 from easily becoming loose in the circumferential direction, leading to transmission failure, or from increasing the gap or shifting of the components due to axial movement.

[0058] Specifically, the limiting hole 131 of the lever 13 cooperates with the outer wall of the connecting part 12 to restrict circumferential rotation. At the same time, the threaded connection between the connecting part 12 and the screw adjusts the clamping force between the lever 13 and the inner oil mesh 30, balancing the sliding friction and structural stability.

[0059] More specifically, the outer wall of the connecting part 12 has a non-circular cross-section (such as D-shaped, polygonal, etc.) to cooperate with the limiting hole 131 to restrict circumferential rotation.

[0060] Please combine Figure 2 as well as Figure 6 As shown, in some embodiments, the inner recessed platform 32 is provided with a T-shaped hole 322 through the first direction, the connecting part 12 passes through the extension of the T-shaped hole 322 along the second direction, and the lever 13 is in a disassembled state. In the disassembled state, the projection of the lever 13 along the first direction is completely located in the extension of the T-shaped hole 322 along the third direction.

[0061] It should be understood that by turning the handle 10, the paddle 13 can be rotated to the disassembly state. At this time, the projection of the paddle 13 along the first direction is completely located within the extension of the T-hole 322 along the third direction. In other words, the paddle 13 can pass through the T-hole 322 along the first direction. At this time, the inner oil mesh 30 and the outer oil mesh 20 can be directly separated along the first direction, which effectively reduces the difficulty of assembling and disassembling the oil mesh structure of this application.

[0062] In some embodiments, the T-hole 322 has chamfers on both sides along the first direction to facilitate the removal and insertion of the paddle 13.

[0063] Specifically, two limiting pieces 321 are symmetrically fixed on the back of the inner oil mesh 30 with the T-shaped hole 322 extending along the third direction as the center. Each limiting piece 321 has an L-shaped cross section parallel to the first direction and the third direction.

[0064] The portion of the limiting piece 321 that contacts the inner oil mesh 30 is located between the paddle 13 and the inner oil mesh 30 along the first direction, so as to avoid the paddle 13 being unable to rotate due to scratching the back of the inner oil mesh 30 during rotation; the other part of the limiting piece 321 that contacts the paddle 13 is perpendicular to the direction of the paddle 13, so as to avoid the paddle 13 generating a component force in other directions when driving the limiting piece 321, thereby improving the smoothness of the sliding of the paddle 13 driving the inner oil mesh 30.

[0065] In some embodiments, the thickness of the gasket 14 is greater than the thickness of the portion of the limiting piece 321 that is attached to the inner oil mesh 30 along the first direction.

[0066] It is easy to understand that the thickness of the gasket 14 is greater than the thickness of the contact part of the limiting piece 321, so that when the screw 15 is tightened, the pressure is applied to the gasket 14 first rather than the limiting piece 321. The assembly tolerance is compensated by the elastic deformation of the gasket 14, while limiting the interference between the lever 13 and the bottom wall of the limiting piece 321 due to the clamping force.

[0067] If the shim is too thin, the lever 13 may excessively compress the contact part of the limiting piece 321 after the screw is tightened, which may cause interference. Therefore, by limiting the thickness of the shim 14 to be greater than the thickness of the contact part of the limiting piece 321, the clamping force is ensured to be evenly distributed, while avoiding interference between the lever 13 and the limiting piece 321, extrusion deformation, etc.

[0068] In some embodiments, the handle 10 is fixed to the inner wall of the inner recessed platform 32, and the outer recessed platform 22 is provided with a through groove. The handle 10 passes through the through groove and can move in the second direction within the through groove. The user drives the inner oil screen 30 to slide by the handle 10, thereby switching the inner oil screen 30 between open and closed states.

[0069] Please combine Figure 2 as well as Figure 7 As shown, in some embodiments, the oil mesh structure further includes at least two sets of magnetic attraction components 50. Each set of magnetic attraction components 50 includes a magnet 51 and a first support member 52. The first support member 52 includes a support portion 521 and a limiting post 522. The front side of the support portion 521 forms a point contact with the outer oil mesh 20 and the back side forms a receiving cavity. The limiting post 522 is fixed to the bottom wall of the receiving cavity. The magnet 51 is sleeved on the limiting post 522 and located in the receiving cavity. The front side of the inner oil mesh 30 has a plurality of grooves 33 corresponding to the magnetic attraction components 50. The support portion 521 is embedded in the corresponding groove 33. The limiting post 522 penetrates the through hole in the bottom wall of the groove 33.

[0070] Specifically, after the magnet 51 is inserted into the limiting post 522, it is magnetically attracted to the groove 33. The limiting post 522 is inserted into the through hole in the bottom wall of the groove 33 to form a radial rigid limit. The magnet 51 is also magnetically attracted to the outer oil mesh 20 to improve the connection stability between the inner oil mesh 30 and the outer oil mesh 20 along the first direction. In addition, the contact area between the front of the support part 521 and the outer oil mesh 20 is only a point to greatly reduce the sliding resistance.

[0071] The point contact design can effectively reduce the sliding friction resistance between the outer oil mesh 20 and the support part 521, thus making it smoother for the user to adjust the inner oil mesh 30 through the handle 10.

[0072] In some embodiments, the front of the support portion 521 is designed as a spherical surface, and the depth of the groove 33 along the first direction is slightly less than the thickness of the support portion 521 along the first direction, so that the support portion 521 can partially protrude from the front of the inner oil mesh 30 and form point contact with the back of the outer oil mesh 20.

[0073] Furthermore, in some embodiments, the oil mesh structure is provided with four sets of magnetic attraction components 50, which are correspondingly embedded in the four grooves 33 at the four corners of the inner oil mesh 30.

[0074] Furthermore, the magnets 51 of the two sets of magnetic attraction components 50 located on the upper side are larger in volume than the magnets 51 of the two sets of magnetic attraction components 50 located on the lower side.

[0075] Please combine Figure 2 as well as Figure 3 As shown, in some embodiments, the edges of both the inner oil mesh 30 and the outer oil mesh 20 are provided with flanges that bend towards the back.

[0076] Specifically, the inner oil mesh 30 and the outer oil mesh 20 are connected by a flange along a third direction. Through the flange design of the inner oil mesh 30 and the outer oil mesh 20, the overall rigidity of the oil mesh structure is improved, while also constraining the sliding direction and stabilizing the gap size, ensuring the smoothness of the inner oil mesh 30 sliding along the second direction.

[0077] Please combine Figure 2 as well as Figure 3 As shown, in some embodiments, the outer oil mesh 20 has a second support member 23 protruding inward on the flange along a third direction, and the second support member 23 makes point contact with the flange of the inner oil mesh 30.

[0078] Traditional flanged structures, which slide through surface contact (such as direct contact of the entire flange), tend to have an excessively large friction area, resulting in a large starting torque and requiring more effort from the user. In contrast, this application adds a second support member 23 to the flanges on both sides of the outer oil mesh 20 along a third direction, which reduces the contact area while providing multi-point local support, thus balancing the conflict between rigidity enhancement and frictional resistance reduction.

[0079] Specifically, the second support member 23 can be hemispherical, curved, or other shapes, as long as it can make point contact with the flange of the inner oil mesh 30. Each flange of the outer oil mesh 20 is provided with 3 to 5 equally spaced second support members 23. This ensures both uniform support and minimizes friction. Even if one second support member 23 fails due to wear, the remaining second support members 23 can still maintain the positioning and support of the inner oil mesh 30, extending its service life. Preferably, each flange of the outer oil mesh 20 is provided with 4 equally spaced second support members 23.

[0080] Please combine Figure 2 as well as Figure 3 As shown, the outer oil mesh 20 has a secondary flange along the bottom edge of the third direction. When it is necessary to remove the inner oil mesh 30 and the outer oil mesh 20, first use the bottom flange of the outer oil mesh 20 as the rotation center, and then rotate the top of the inner oil mesh 30 to the back side to remove the inner oil mesh 30. During this process, the secondary flange at the bottom of the outer oil mesh 20 can play a supporting role, so as to facilitate the removal of the inner oil mesh 30 and the outer oil mesh 20 and their separate cleaning.

[0081] The assembly process is the reverse of the disassembly process, and will not be described in detail here.

[0082] Please combine Figure 2 as well as Figure 3 As shown, in some embodiments, the flanges of the outer oil mesh 20 and the inner oil mesh 30 are kept as straight as possible. Preferably, the flange of the inner oil mesh 30 is a continuous, unbroken ring to improve the rigidity of the outer oil mesh 20 and the inner oil mesh 30, and to effectively reduce the gap between the inner oil mesh 30 and the outer oil mesh 20 compared to cases with more breaks.

[0083] Please refer to Figure 7 As shown, this application also provides a range hood, including a range hood body and the aforementioned oil mesh structure, wherein the outer oil mesh 20 is fixed to the inner wall of the air intake of the range hood body.

[0084] Specifically, two sets of oil mesh structures are provided inside the smoke inlet along the second direction.

[0085] Please combine Figure 2 as well as Figure 7 As shown, the outer oil mesh 20 is also fixed with a latch 60 located on the upper side of the T-shaped hole 322 along the third direction, which is used to snap and fix it to the range hood body.

[0086] Specifically, the top of the outer oil mesh 20 has a snap-fit ​​fixing flange, which is open on one side along the second direction to avoid interference between the snap-fit ​​60 and the inner recessed platform 32 during installation. When installing the snap-fit ​​60, first slide the snap-fit ​​60 into the snap-fit ​​fixing flange along the second direction, and then fix the snap-fit ​​60 and the snap-fit ​​fixing flange with bolts.

[0087] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0088] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An oil mesh structure, characterized in that, Includes a handle (10), an outer oil mesh (20) and an inner oil mesh (30). The outer oil mesh (20) is recessed towards the back to form an outer recessed platform (22), and the inner oil mesh (30) is recessed towards the back to form an inner recessed platform (32). The outer oil mesh (20) and the inner oil mesh (30) are stacked along a first direction so that the outer recessed platform (22) is embedded in the inner recessed platform (32). The inner oil mesh (30) is slidably connected to the outer oil mesh (20) along the second direction to have an open and closed state. In the open state, the first ventilation hole (31) on the inner oil mesh (30) is directly opposite to the second ventilation hole (21) on the outer oil mesh (20). In the closed state, the inner oil mesh (30) is misaligned and blocks the second ventilation hole (21). The handle (10) is connected to the inner oil mesh (30) and protrudes into the outer sink (22). The handle (10) is movable relative to the outer oil mesh (20) to drive the inner oil mesh (30) to slide.

2. The oil mesh structure according to claim 1, characterized in that, The oil mesh structure also includes an oil cup (40) that is fixed relative to the outer oil mesh (20) and located at the bottom of the outer oil mesh (20). The thickness of the outer sinking platform (22) along the first direction gradually decreases towards the side closer to the oil cup (40).

3. The oil mesh structure according to claim 2, characterized in that, The thickness of the portion of the handle (10) protruding into the outer recess (22) along the first direction gradually decreases towards the oil cup (40) to form an oil guiding surface (111) on the front of the handle (10).

4. The oil mesh structure according to claim 3, characterized in that, The angle between the oil guiding surface (111) and the horizontal plane is in the range of 13°~23°.

5. The oil mesh structure according to claim 3, characterized in that, The inner bottom wall edge and the opening edge of the outer sinking platform (22) are both chamfered, and the edge of the oil guiding surface (111) is also chamfered.

6. The oil mesh structure according to claim 2, characterized in that, The outer recessed platform (22) is designed to mimic the shape of the inner recessed platform (32), and there are gaps between each surface of the outer recessed platform (22) and each corresponding surface of the inner recessed platform (32).

7. The oil mesh structure according to claim 1, characterized in that, The handle (10) includes a grip (11), a paddle (13), and a connecting part (12) rotatably connected to the outer oil screen (20). The connecting part (12) passes through the outer recessed platform (22) and the inner recessed platform (32). One end of the connecting part (12) protruding into the outer recessed platform (22) is fixed to the grip (11), and the other end is fixed to the paddle (13). The inner sinking platform (32) has a limiting piece (321) fixed on its back. The gripping part (11) can drive the paddle (13) to rotate to drive the limiting piece (321), so that the inner oil screen (30) switches between open and closed states along the second direction.

8. The oil mesh structure according to claim 7, characterized in that, The inner recessed platform (32) has a T-shaped hole (322) through it along the first direction. The connecting part (12) extends through the T-shaped hole (322) along the second direction. The lever (13) has a detached state. In the detached state, the projection of the lever (13) along the first direction is completely located within the extension of the T-shaped hole (322) along the third direction.

9. The oil mesh structure according to claim 1, characterized in that, The handle (10) is fixed to the inner wall of the recessed platform (32).

10. A range hood, characterized in that, It includes a range hood body and an oil mesh structure as described in any one of claims 1 to 9, wherein the outer oil mesh (20) is fixed to the inner wall of the air intake of the range hood body.

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