A range hood

Abstract

The application relates to the technical field of kitchen appliances, and particularly relates to an oil extractor hood, which comprises: a hood shell, the bottom of which is provided with an oil groove; a fan, the bottom of the shell of which is provided with an oil leakage hole; an oil screen, which is obliquely arranged on the hood shell; the inner side wall of the hood shell is provided with a support plate, an oil guide channel located above the oil groove is formed between the edge of the oil screen and the support plate, an oil guide support is arranged between the bottom of the fan and the oil screen, one end of the oil guide support is located below the oil leakage hole, and the other end of the oil guide support extends to the oil screen, and oil dirt in the fan sequentially passes through the oil leakage hole, the oil guide support, the oil screen, the oil guide channel and falls into the oil groove. Compared with the oil circuit system in the related art, the application can ensure that all the oil dirt in the fan falls into the oil groove, and leakage does not occur.

Description

Technical Field

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

[0002] Range hoods have become an indispensable kitchen appliance in daily life. A lot of oil fumes are generated during Chinese cooking, which are sucked into the range hood. Some of them are discharged into the public flue, but most of the oil fumes condense inside the range hood to form grease, which is then guided by the oil circuit system into the oil cup at the bottom.

[0003] In related technologies, the oil circuit system of a range hood (taking the oil circuit corresponding to the oil stains inside the fan as an example) cannot guarantee that the oil stains will not leak at each flow node of the oil circuit, and therefore cannot guarantee that the oil stains will completely enter the oil cup. Utility Model Content

[0004] This application provides a range hood to solve the technical problem of oil leakage risk in the oil circuit system of existing range hoods.

[0005] This application provides a range hood, including:

[0006] The range hood housing has an oil groove formed at its bottom;

[0007] A fan is installed inside the casing of the smoke hood, and the bottom of the casing of the fan is provided with an oil leakage hole;

[0008] An oil filter is inclinedly mounted on the casing of the range hood;

[0009] The inner wall of the range hood housing is provided with a support plate, and an oil guiding channel is formed between the edge of the oil screen and the support plate above the oil tank. An oil guiding bracket is provided between the bottom of the fan and the oil screen. One end of the oil guiding bracket is located below the oil leakage hole, and the other end extends to the oil screen. The oil in the fan falls into the oil tank in sequence through the oil leakage hole, the oil guiding bracket, the oil screen, and the oil guiding channel.

[0010] Compared to the oil circuit system in related technologies, the embodiments of this application, by setting up an oil guide bracket and an oil guide channel formed between the oil net and the support plate, allow the oil sludge in the fan to first flow into the oil net through the oil leakage hole and the oil guide bracket, then flow to the edge of the oil net and into the oil guide channel, and finally fall into the oil tank through the oil guide channel. This ensures that all the oil sludge in the fan falls into the oil tank and no leakage occurs.

[0011] In some embodiments, the support plate includes a first plate parallel to the inner wall of the range hood housing and a second plate intersecting the first plate, the edge of the oil mesh is connected to the first plate and has a gap between it and the second plate, the gap forming the oil guiding channel.

[0012] Therefore, the first plate supports the installation of the oil mesh, and the gap between the edge of the oil mesh and the second plate forms an oil guiding channel. This simplifies the flow path of oil within the fan, allowing oil to circulate directly through the existing gap between the oil mesh and the second plate, thus reducing the design cost of the corresponding oil circuit within the fan. Furthermore, using the gap as an oil guiding channel ensures that the oil within the fan flows through the oil mesh into the gap and ultimately falls into the oil tank.

[0013] In some embodiments, the second plate extends downward above the oil tank, and oil drips down the surface of the second plate into the oil tank after passing through the oil guide channel.

[0014] Therefore, the second plate extends downwards to the top of the oil tank, and the gap between the second plate and the edge of the oil mesh forms an oil guiding channel, allowing the oil to flow downwards along the surface of the second plate after passing through the oil guiding channel. The second plate then guides the oil, causing all the oil to fall into the oil tank.

[0015] In some embodiments, the support plate has a through opening, the edge of the oil mesh extends into a plug-in portion, the plug-in portion is plugged into the through opening, and the plug-in portion has an oil guide groove, the oil guide groove and the through opening form the oil guide channel.

[0016] As another solution for the oil guiding channel, a through-hole is set on the support plate, and the plug part of the oil mesh edge is inserted into the through-hole. The oil guiding groove on the plug part and the through-hole form an oil guiding channel, which allows the oil on the oil mesh to fall into the oil tank along the oil guiding groove, and also ensures that the oil does not leak.

[0017] In some embodiments, the oil mesh includes a third plate and a fourth plate that are both inclined, the third plate and the fourth plate being inclined in opposite directions to form an oil-gathering groove that connects the oil guiding channel, the third plate being connected to the oil guiding bracket and having a plurality of through elongated holes spaced apart on the third plate.

[0018] Therefore, when oil falls onto the oil screen, the tilted third plate allows the oil to flow downwards into the oil collection groove and then into the oil guide channel, thus preventing the oil from accumulating on the oil screen and ensuring smooth discharge of the oil.

[0019] In some embodiments, the elongated hole is provided with a first flange circumferentially around one side of the smoke hood housing.

[0020] Therefore, the first flange prevents oil from flowing out of the range hood through the elongated holes, thus preventing oil leakage. Furthermore, the first flange creates a guiding channel between adjacent elongated holes, connecting to the oil-collecting groove, facilitating the flow of oil into the groove.

[0021] In some embodiments, the lower end of the oil mesh is provided with a second flange that slopes downwards, and one end of the second flange extends above the oil trough.

[0022] Therefore, when there is too much oil on the oil screen and it cannot be discharged smoothly through the oil guide channel, the overflowing oil can be guided by the second flange to fall into the oil tank, effectively preventing the overflowing oil from leaking.

[0023] In some embodiments, the oil guide bracket includes an oil guide base plate and oil guide flanges located on both sides of the oil guide base plate, an oil passage is formed between the oil guide base plate and the oil guide flanges, and the oil leakage hole is located above the oil passage.

[0024] Therefore, after the oil inside the fan falls into the oil guide bracket, the oil guide flanges on both sides can ensure that the oil does not leak out from the edges of the oil guide bracket, so that the oil flows completely onto the oil screen.

[0025] In some embodiments, the range hood further includes a panel structure, the lower end of which is provided with an inclined oil guide plate, one end of which extends above the oil mesh.

[0026] Therefore, the oil guide plate can also guide the condensed oil on the panel structure into the oil mesh, and then fall into the oil tank through the oil guide channel. This structure allows the oil mesh to serve as a flow path for both the fan and the oil on the panel structure, thus eliminating the need for additional oil lines to discharge oil from the panel structure and reducing processing costs. On the other hand, it also prevents oil leakage from the panel structure.

[0027] In some embodiments, the range hood housing includes a rear side plate, the lower end of which is bent to form the oil groove.

[0028] As a result, an oil groove is formed at the lower end of the rear panel, allowing the condensed oil stains adhering to the rear panel to flow downwards into the oil groove, thus preventing the oil stains on the rear panel from being unable to drain or leaking. Attached Figure Description

[0029] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0030] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1This is a three-dimensional structural diagram of the range hood described in the embodiments of this application;

[0032] Figure 2 This is a schematic diagram of the structure of the range hood with an oil guide bracket as described in the embodiments of this application;

[0033] Figure 3 Examples of this application Figure 2 Enlarged view of point A;

[0034] Figure 4 This is a half-sectional structural diagram of the range hood described in the embodiment of this application;

[0035] Figure 5 This is a schematic diagram of the structure of the rear panel of the range hood housing described in an embodiment of this application;

[0036] Figure 6 This is a schematic diagram of the assembly structure of the support plate and the oil mesh described in the embodiment of this application;

[0037] Figure 7 This is a schematic diagram of another structure of the oil guiding channel described in the embodiments of this application;

[0038] Figure 8 This is a schematic diagram of the structure of the oil guide bracket described in the embodiment of this application;

[0039] Figure 9 This is a schematic diagram of the structure of the oil mesh described in the embodiments of this application;

[0040] Figure 10 Examples of this application Figure 9 Enlarged view of point B;

[0041] Figure 11 This is a schematic diagram of the second flange of the range hood display panel structure described in the embodiment of this application;

[0042] Figure 12 Examples of this application Figure 11 Enlarged diagram of point C.

[0043] in:

[0044] 1. Range hood housing; 10. Oil tray; 101. Through hole; 11. Support plate; 111. First plate; 112. Second plate; 113. Through opening; 12. Rear side plate;

[0045] 2. Fan; 21. Oil leak hole;

[0046] 3. Oil mesh; 30. Insertion part; 301. Oil guide groove; 31. Third plate; 32. Fourth plate; 33. Oil collection groove; 34. Elongated hole; 35. First flange; 36. Second flange;

[0047] 4. Oil guide bracket; 41. Oil guide base plate; 411. First base plate; 412. Second base plate; 413. Third base plate; 42. Oil guide flange; 421. First oil guide flange; 422. Second oil guide flange;

[0048] 5. Panel structure; 51. Oil guide plate;

[0049] 6. Oil cup. Detailed Implementation

[0050] To better understand the above-mentioned objectives, features, and advantages of this application, the solution of this application will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0051] Many specific details are set forth in the following description in order to provide a full understanding of this application, but this application may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of this application, and not all embodiments.

[0052] In related technologies, the oil circuit system of range hoods usually has a long flow path. Taking the oil circuit corresponding to the oil stains in the fan as an example, it cannot guarantee that the oil stains will not leak at each flow node of the oil circuit, that is, it cannot guarantee that the oil stains will completely enter the oil cup.

[0053] To address the aforementioned problems, this application provides a range hood that ensures all grease inside the fan 2 falls into the grease tank 10 without leakage. See also... Figures 1-4 ,in Figure 1 This is a three-dimensional structural diagram of the range hood described in the embodiments of this application. Figure 2 This is a schematic diagram showing the structure of the range hood with the oil guide bracket 4 described in the embodiment of this application. Figure 3 Examples of this application Figure 2 Enlarged diagram of point A, Figure 4 This is a half-sectional structural diagram of the range hood described in this application embodiment. The range hood includes a range hood housing 1, a fan 2, an oil filter 3, a panel structure 5, and an oil cup 6. The fan 2 is located inside the range hood housing 1 and provides suction to draw cooking fumes into the housing 1 and exhaust them outdoors. The oil filter 3 is installed on the front side of the range hood housing 1 to separate the fumes and oil. The panel structure 5 is located on the front side of the range hood and above the oil filter 3. Touch buttons and lights can be installed on it as needed. The oil cup 6 is located at the bottom of the range hood housing 1 to collect oil.

[0054] In this embodiment, the range hood housing 1 may include a rear side plate 12, a left side plate, a right side plate, and a front side plate. The left and right side plates are respectively disposed on both sides of the rear side plate 12, and the front side plate is connected to the left and right side plates, so that the range hood housing 1 forms a relatively closed cover structure. The air inlet of the fan 2 is positioned directly opposite the rear side plate 12. The oil filter 3 is obliquely installed on the front side plate, and the edge of the oil filter 3 is fixedly connected to the left and right side plates.

[0055] like Figure 5 As shown, Figure 5 This is a schematic diagram of the structure of the rear side plate 12 of the range hood housing 1 as described in this application embodiment. The lower end of the rear side plate 12 is bent to form an oil groove 10. Specifically, the lower end of the rear side plate 12 is bent to form the bottom wall of the oil groove 10, and then the bottom wall is bent upward around the perimeter to form a flange, thereby forming the side wall of the oil groove 10.

[0056] It should be noted that since the air inlet of the fan 2 is set directly opposite the rear panel 12, condensed oil stains will form on the rear panel 12 before the oil fumes enter the fan 2. At this time, the condensed oil stains can flow into the oil tank 10 along the inner wall of the rear panel 12.

[0057] In some embodiments, a through hole 101 is provided on the bottom wall of the oil tank 10, and the oil cup 6 is placed below the oil tank 10 and connected to the oil tank 10 through the through hole 101. The formation of the oil tank 10 enables the collection of oil stains in the fan 2 of the range hood, oil stains condensed on the rear side panel 12, and oil stains condensed on the panel structure 5, and finally allows the oil stains to flow into the oil cup 6 through the through hole 101.

[0058] In this embodiment, the inner wall of the range hood housing 1 is provided with a support plate 11. The support plate 11 can be provided on the left and right sides of the range hood housing 1. The edge of the oil mesh 3 is fixedly connected to the support plate 11, thus supporting the installation of the oil mesh 3. An oil guiding channel is formed between the oil mesh 3 and the support plate 11. This oil guiding channel is located above the oil trough 10, allowing oil stains on the oil mesh 3 to fall into the oil trough 10 through the oil guiding channel.

[0059] In some embodiments, such as Figure 6 As shown, Figure 6This is a schematic diagram of the assembly structure of the support plate 11 and the oil mesh 3 according to an embodiment of this application. The support plate 11 may include a first plate 111 parallel to the inner wall of the range hood housing 1 (specifically, the left or right side plate) and a second plate 112 intersecting with the first plate 111. The edge of the oil mesh 3 is connected to the first plate 111 and has a gap between it and the second plate 112, which forms the oil guiding channel. With the above structure, the first plate 111 provides support for the installation of the oil mesh 3, and then the gap between the edge of the oil mesh 3 and the second plate 112 forms an oil guiding channel. The oil can flow directly through the gap that already exists between the oil mesh 3 and the second plate 112, reducing the design cost of the oil circuit and ensuring that the oil on the oil mesh 3 flows into the gap and falls entirely into the oil tank 10.

[0060] In some embodiments, reference may continue to be made to Figure 6 The second plate 112 extends downwards above the oil tank 10. Oil drips down the surface of the second plate 112 into the oil tank 10 after passing through the oil guide channel. Thus, the oil guide channel formed by the gap between the second plate 112 and the edge of the oil mesh 3 allows the oil to flow downwards along the surface of the second plate 112 after passing through the oil guide channel. The second plate 112 then guides the oil, ensuring that all the oil falls into the oil tank 10 without leaking into other areas.

[0061] As another implementation scheme for oil guiding channels, such as Figure 7 As shown, Figure 7 This is another schematic diagram of the oil guiding channel described in the embodiments of this application. In this embodiment, a through-hole 113 can also be provided on the support plate 11, for example, on the first plate 111. An insertion portion 30 extends from the edge of the oil mesh 3 and is inserted into the through-hole 113 to install the oil mesh 3. Furthermore, the insertion portion 30 is provided with an oil guiding groove 301, which extends through to the outer end of the through-hole 113 and is located above the oil tank 10, thus forming an oil guiding channel between the oil guiding groove 301 and the through-hole 113. When there is oil on the oil mesh 3, the oil will flow into the oil guiding groove 301, and after passing through the oil guiding channel, it will fall into the oil tank 10 from the end of the oil guiding groove 301.

[0062] In some embodiments, such as Figure 4As shown, the fan 2 is installed inside the range hood housing 1, and the bottom of the fan 2 housing has an oil drain hole 21. The oil screen 3 is located below the fan 2, and an oil guide bracket 4 is provided between the bottom of the fan 2 and the oil screen 3. One end of the oil guide bracket 4 is connected to the bottom of the fan 2, so that the oil drain hole 21 is located above one end of the oil guide bracket 4. The other end of the oil guide bracket 4 extends to the oil screen 3 and is fixed to the oil screen 3. During the operation of the range hood, before the fumes are discharged to the common flue through the fan 2, they will pass through the impeller of the fan 2 for fumes separation. At this time, most of the grease is separated by the impeller and concentrated at the bottom of the fan 2. Then it is discharged from the fan 2 through the oil drain hole 21. At this time, the oil guide bracket 4 of this embodiment will receive the grease discharged from the oil drain hole 21 and guide the grease so that the grease finally flows to the oil screen 3, and then falls into the oil tank 10 through the oil guide channel.

[0063] This application utilizes the oil guide bracket 4 to form an oil guide channel between the oil mesh 3 and the support plate 11, allowing the oil in the fan 2 to first flow into the oil mesh 3 through the oil leakage hole 21 and the oil guide bracket 4. Then, the oil flows to the edge of the oil mesh 3 and into the oil guide channel, and finally falls into the oil tank 10 through the oil guide channel. This ensures that all the oil in the fan 2 falls into the oil tank 10 without leakage.

[0064] In some embodiments, such as Figure 8 As shown, Figure 8 This is a schematic diagram of the structure of the oil guide bracket 4 described in this application embodiment. The oil guide bracket 4 may include an oil guide base plate 41 and oil guide flanges 42 located on both sides of the oil guide base plate 41. An oil passage is formed between the oil guide base plate 41 and the oil guide flanges 42, and the oil leakage hole 21 is located above the oil passage. Through the structure of this oil guide bracket 4, when the oil in the fan 2 falls into the oil guide bracket 4, the oil guide flanges 42 on both sides can ensure that the oil does not leak out from the edges of the oil guide bracket 4, so that the oil flows completely onto the oil mesh 3. That is to say, in this application, the oil in the fan 2 can fall into the oil tank 10 in sequence through the oil leakage hole 21, the oil guide bracket 4, the oil mesh 3, and the oil guide channel, and finally enter the oil cup 6 through the through hole 101 of the oil tank 10.

[0065] As a further technical solution, refer to Figure 8The oil guide base plate 41 of the aforementioned oil guide bracket 4 may include a first base plate 411, a second base plate 412, and a third base plate 413 connected in sequence. The first base plate 411 is used to be fixedly connected to the housing of the fan 2, and the third base plate 413 is used to be fixedly connected to the oil mesh 3. The second base plate 412 is in a bent state, which is used to form an oil passage. Based on the bent state of the second base plate 412, the oil guide flange 42 in this embodiment may include a first oil guide flange 421 and a second oil guide flange 422. The gap between the first oil guide flange 421 and the second oil guide flange 422 at the bend of the second base plate 412 is sealed with sealant to prevent oil from leaking through the gap.

[0066] It should be noted that the end of the second base plate 412 that connects to the third base plate 413 can abut against the oil mesh 3, thereby allowing the oil to flow onto the oil mesh 3.

[0067] In the embodiments of this application, such as Figure 3 As shown, the aforementioned oil mesh 3 is inclinedly disposed on the front side plate of the range hood housing 1, and can be referenced. Figure 9 , Figure 9 The diagram below illustrates the structure of the oil mesh 3 as described in this embodiment. The oil mesh 3 includes a third plate 31 and a fourth plate 32, both inclined. The third plate 31 is connected to the oil guide bracket 4, and the fourth plate 32 is mounted on the front side plate of the range hood housing 1. A plurality of through-holes 34 are spaced apart on the third plate 31 to allow oil fumes to enter the range hood housing 1 through the through-holes 34.

[0068] The third plate 31 and the fourth plate 32 are tilted in opposite directions to form an oil-collecting groove 33 that connects the oil guiding channel. When oil falls onto the oil mesh 3, the oil can flow downward into the oil-collecting groove 33 and flow into the oil guiding channel due to the tilt of the third plate 31. This prevents the oil from accumulating on the oil mesh 3 and allows the oil to be discharged smoothly.

[0069] In some embodiments, such as Figure 10 As shown, Figure 10 Examples of this application Figure 9 The enlarged schematic diagram at point B shows that a first flange 35 is circumferentially arranged around one side of the elongated hole 34 inside the range hood housing 1. This first flange 35, circumferentially arranged around the elongated hole 34, prevents oil from flowing out of the range hood, thus avoiding oil leakage. Furthermore, the first flange 35 creates a guiding channel connecting two adjacent elongated holes 34 to the oil-collecting groove 33, facilitating the flow of oil into the oil-collecting groove 33.

[0070] Considering that when there is a large amount of oil on the oil mesh 3, it is difficult for the oil to flow out smoothly from the oil guide channel, and there is a risk of oil overflowing into the oil collection groove 33, causing leakage, such as Figure 9 and Figure 10As shown, in this embodiment of the application, a second flange 36 is provided at the lower end of the oil mesh 3, and one end of the second flange 36 extends to the top of the oil tank 10. Therefore, when too much oil on the oil mesh 3 overflows from the oil collection groove 33, the overflowing oil can be guided by the second flange 36 to fall into the oil tank 10, effectively preventing the overflowing oil from leaking.

[0071] When the fan 2 is running, some of the fumes will enter the fan 2 from one side of the panel structure 5. At this time, the fumes will condense on the inner wall of the panel structure 5 to form oil stains. To ensure that this oil stains do not leak, in some embodiments, the panel structure 5 of the range hood is installed on the front panel of the range hood housing 1, such as... Figure 11 and Figure 12 As shown, Figure 11 This is a schematic diagram of the second flange 36 of the panel structure 5 of the range hood described in this embodiment of the application. Figure 12 Examples of this application Figure 11 An enlarged schematic diagram at point C. The lower end of the panel structure 5 may be equipped with an inclined oil guide plate 51, one end of which extends above the oil mesh 3, for example, one end of the oil guide plate 51 may extend above the oil-gathering groove 33 formed by the oil mesh 3. When oil condenses on the panel structure 5, the oil can flow downwards onto the oil guide plate 51 and be guided by the oil guide plate 51 into the oil-gathering groove 33 of the oil mesh 3, and then fall into the oil tank 10 through the oil guide channel. This structure allows the oil mesh 3 to simultaneously serve as a flow path for oil on both the fan 2 and the panel structure 5, thus eliminating the need for additional oil passages to discharge oil from the panel structure 5, reducing processing costs. Furthermore, it also prevents oil leakage from the panel structure 5.

[0072] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0073] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A range hood, characterized in that, include: The range hood housing (1) has an oil groove (10) formed at its bottom; A fan (2) is installed inside the casing (1) of the smoke hood, and the bottom of the casing of the fan (2) is provided with an oil leakage hole (21); An oil mesh (3) is inclinedly disposed on the casing (1) of the range hood; The inner wall of the smoke machine housing (1) is provided with a support plate (11). The edge of the oil screen (3) and the support plate (11) form an oil guiding channel above the oil tank (10). The bottom of the fan (2) and the oil screen (3) are provided with an oil guiding bracket (4). One end of the oil guiding bracket (4) is located below the oil leakage hole (21), and the other end extends to the oil screen (3). The oil in the fan (2) falls into the oil tank (10) in sequence through the oil leakage hole (21), the oil guiding bracket (4), the oil screen (3), and the oil guiding channel.

2. The range hood according to claim 1, characterized in that, The support plate (11) includes a first plate (111) parallel to the inner wall of the smoke machine housing (1) and a second plate (112) intersecting with the first plate (111). The edge of the oil mesh (3) is connected to the first plate (111) and has a gap between it and the second plate (112), and the gap forms the oil guiding channel.

3. The range hood according to claim 2, characterized in that, The second plate (112) extends downward above the oil tank (10), and the oil drips down the surface of the second plate (112) into the oil tank (10) after passing through the oil guide channel.

4. The range hood according to claim 1, characterized in that, The support plate (11) has a through opening (113), and the edge of the oil mesh (3) extends into a plug-in part (30). The plug-in part (30) is inserted into the through opening (113), and the plug-in part (30) is provided with an oil guide groove (301). The oil guide groove (301) and the through opening (113) form the oil guide channel.

5. The range hood according to claim 1, characterized in that, The oil mesh (3) includes a third plate (31) and a fourth plate (32) that are both inclined. The inclination directions of the third plate (31) and the fourth plate (32) are opposite to form an oil-gathering groove (33) that connects the oil guiding channel. The third plate (31) is connected to the oil guiding bracket (4) and a plurality of through elongated holes (34) are spaced apart on the third plate (31).

6. The range hood according to claim 5, characterized in that, The elongated hole (34) is located on one side of the smoke machine housing (1) and is circumferentially surrounded by a first flange (35).

7. The range hood according to claim 1, characterized in that, The lower end of the oil mesh (3) is provided with a second flange (36) that is inclined downward, and one end of the second flange (36) extends above the oil tank (10).

8. The range hood according to claim 1, characterized in that, The oil guide bracket (4) includes an oil guide base plate (41) and oil guide flanges (42) located on both sides of the oil guide base plate (41). An oil passage is formed between the oil guide base plate (41) and the oil guide flanges (42), and the oil leakage hole (21) is located above the oil passage.

9. The range hood according to any one of claims 1-8, characterized in that, The range hood also includes a panel structure (5), the lower end of which is provided with an inclined oil guide plate (51), one end of which extends above the oil mesh (3).

10. The range hood according to any one of claims 1-8, characterized in that, The casing (1) of the range hood includes a rear side plate (12), the lower end of which is bent to form the oil groove (10).

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