Exhaust fume collecting hood and range hood
By introducing oil net and tilt angle design into the smoke collecting hood of the range hood, the problems of hand injuries and oil splashing when the smoke guide plate is opened are solved, achieving higher safety and cleaning convenience, and through Air holes reduce noise.
Patent Information
- Application Number
- CN202323550010.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-25
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2033-12-25
AI Technical Summary
In the smoke collecting hood of existing range hoods, due to the presence of sharp objects such as screws, the smoke guide plate is easily injured when it is opened, and the oil splashes lead to internal structure contamination, affecting the difficulty of cleaning.
A cigarette collecting hood is designed to separate the first chamber and the second chamber at the communication port through an oil mesh. The smoke guide plate is hinged on the side panel. The oil mesh prevents hand misoperation and the inclination angle design makes the oil smooth. The back plate flows down to reduce splashing and ensures oil flow to the bottom through oil couplings and oil leakage holes, and the air inlet hole design reduces noise.
Improves operational safety, avoids hand injuries, reduces oil splash contamination, simplifies cleaning process, and reduces noise interference through air inlets.
Smart Images
Figure CN222317096U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of kitchen appliances, in particular to a fume hood and a range hood. Background Art
[0002] With the development of modern cooking technology, range hoods are becoming more and more popular among people. Most of the existing range hoods have a smoke hood and a smoke guide plate. Some smoke guide plates are hinged on the smoke hood, and the smoke guide plate can be opened. When the smoke guide plate is opened, the outside can communicate with the chamber in the smoke hood. Since most of the components in the upper cavity of the smoke hood chamber are connected by fasteners such as screws, there are sharp objects such as screws in the upper cavity of the chamber. After the smoke guide plate is opened, once the operator mistakenly extends his hand into the upper cavity of the chamber, the sharp objects may easily scratch the operator's hand. Utility Model Content
[0003] In order to at least partially solve the problems existing in the prior art, the utility model provides a smoke collecting hood, and the technical solution is as follows.
[0004] The smoke hood includes a hood body, which encloses a first chamber and a second chamber. The first chamber and the second chamber are arranged up and down and are connected to each other through a connecting port, and an oil net is arranged at the connecting port; the hood body has a back plate, two side plates and a smoke guide plate, the two side plates are respectively connected to the two sides of the back plate, the smoke guide plate is hinged on the side plate to form a partial cavity wall of the second chamber, and the smoke guide plate has a top end, and the connecting port is located above the top end.
[0005] The utility model provides a smoke collecting hood, in which an oil net is arranged at the connecting port to separate the first chamber from the second chamber, and a smoke guide plate is hinged on the side plate to form a partial cavity wall of the second chamber. After the smoke guide plate is opened, on the one hand, the oil net can prevent the operator from accidentally extending his hand into the first chamber, thus avoiding the problem of hand injury caused by accidental operation and improving safety; on the other hand, it will not affect the operator's cleaning of the second chamber.
[0006] Exemplarily, the oil net includes a net body and a connector connected to one side of the net body, and the connector is fixedly connected to the back plate. In this way, the oil net is connected to the back plate, so that the oil flows down along the back plate. Compared with the oil directly dripping from the oil net to the bottom of the fume hood, the oil flowing down along the back plate can prevent excessive oil splashing when the oil drips to the bottom of the fume hood, thereby preventing other structures inside the range hood from being contaminated by the splashed oil. Moreover, since the oil contamination range is limited, such a second chamber can be simpler and more convenient to clean.
[0007] Exemplarily, an inclination angle α is formed between the net body and the back plate, and α is 60° to 75°. α is 60°, 65°, 70° or 75°, etc. In this way, the net body is inclined, the oil flows to a lower place, and the oil attached to the net body flows toward the back plate, so that the oil flows down along the back plate, preventing the oil from gathering in one place of the oil net and clogging the oil net holes. In addition, the inclination angle can prevent the oil from sliding from the net body to the back plate at a speed that is not too high, thereby avoiding splashing of the oil when it reaches the back plate.
[0008] Exemplarily, the cover body further comprises a front panel and a connecting plate, the front panel is opposite to the back panel, the connecting plate is connected to the front panel and has an extension plate extending toward the back panel, the front panel and the extension plate form a part of the cavity wall of the first cavity, and the net body is not higher than the extension plate. In this way, the extension plate distinguishes the first cavity from the second cavity, and a connecting port is left to connect the first cavity and the second cavity to each other, the net body is not higher than the extension plate, and the net body blocks the first cavity to prevent hand injuries and improve safety.
[0009] Exemplarily, an oil receiving piece is provided above the net body in the first chamber. In this way, the oil in the oil receiving piece falls on the net body and then flows down, and the oil in the oil receiving piece drips onto the net body, and the oil flows down along the back plate after passing through the net body and drips to the bottom of the smoke hood. There can be a height difference between the oil receiving piece and the net body. Compared with the oil dripping directly from the oil receiving piece to the bottom of the smoke hood, the net body is arranged below the oil receiving piece, so that when the oil drips to the bottom of the smoke hood, there will not be too much oil splashing, so as to avoid other structures inside the range hood being contaminated by the splashing oil, and because the oil contamination range is limited, such a second chamber can be simpler and more convenient to clean.
[0010] For example, the oil receiving member extends from the back plate toward the front plate, and an oil leakage hole is provided at the connection between the oil receiving member and the back plate, so as to ensure that the oil in the oil receiving member flows from the oil leakage hole to the back plate and flows down along the back plate, and prevent the oil from flowing out from other parts of the oil receiving member and polluting the interior of the smoke hood.
[0011] Exemplarily, the orthographic projection of the oil receiving member toward the plane where the net body is located falls into the net body, so as to ensure that the oil dripped from the oil receiving member falls into the net body.
[0012] Exemplarily, a flange is formed on one side of the net body away from the connecting body toward the oil receiving piece. In this way, the flange blocks the oil from flowing down from the side of the net body away from the connecting body.
[0013] For example, a plurality of air inlet holes with a diameter of 4 mm to 8 mm are distributed on the net body. The diameter is 4 mm, 6 mm or 8 mm, etc. In this way, when the airflow passes through the small holes with a diameter of 4 mm to 8 mm, the spectrum of the jet noise will move to high frequency or ultra-high frequency, so that the audible sound components in the spectrum are significantly reduced, thereby reducing the interference and harm of noise to people.
[0014] For example, there is a gap between two adjacent air inlets, the gap is 0.5mm to 1.5mm. The gap is 0.5mm, 1.0mm or 1.5mm, etc. In this way, when the area of the net body is constant, the gap is minimized and the air inlets are arranged as much as possible to achieve the effect of not affecting the air volume.
[0015] According to another aspect of the utility model, a range hood is provided, comprising a chassis and the above-mentioned fume hood, wherein the fume hood is connected to the bottom of the chassis. Since the range hood provided by the utility model comprises the above-mentioned fume hood, the range hood necessarily has the technical effect of the above-mentioned fume hood.
[0016] For example, a volute is provided in the case, the volute has a shell end portion disposed away from the back plate, an oil guide is connected to the shell end portion, and the oil guide extends downwardly from the shell end portion toward the back plate, so that the oil in the volute flows down along the oil guide toward the back plate.
[0017] For example, the projection of the oil guide member toward the plane where the oil net is located overlaps with the oil net, and the oil guide member has an oil dripping end, which is located above the oil net. In this way, it is ensured that the oil dripped from the oil dripping end of the oil guide member falls on the oil net, and the oil net collects the oil more comprehensively, further preventing the oil not collected by the oil net from directly dripping on the bottom of the fume hood and causing splashing.
[0018] A series of simplified concepts are introduced in the utility model content, which will be further described in detail in the detailed implementation section. The utility model content section does not mean to attempt to define the key features and essential technical features of the technical solution claimed for protection, nor does it mean to attempt to determine the scope of protection of the technical solution claimed for protection.
[0019] The advantages and features of the present invention are described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The following drawings of the present invention are used as part of the present invention for understanding the present invention. The drawings show the implementation of the present invention and its description, and are used to explain the principle of the present invention. In the drawings,
[0021] Figure 1 A front view of the internal structure of a smoke collecting hood according to an exemplary embodiment of the present invention;
[0022] Figure 2 for Figure 1 Enlarged view of part A in the middle;
[0023] Figure 3 for Figure 1 A front view of the oil screen in FIG.
[0024] Figure 4 for Figure 1 A three-dimensional diagram of the oil screen in the
[0025] Figure 5 A three-dimensional diagram of the internal structure of a range hood according to an exemplary embodiment of the present invention;
[0026] Figure 6 A front view of the internal structure of a range hood according to an exemplary embodiment of the present invention;
[0027] Figure 7 It is a front view of the exterior of a range hood according to an exemplary embodiment of the present utility model.
[0028] The above drawings include the following reference numerals:
[0029] 100, smoke hood; 110, hood body; 111, back plate; 112, side plate; 1121, extension body; 113, smoke guide plate; 1131, top; 114, front panel; 115, connecting plate; 1151, extension plate; 116, connecting structure; 1161, hinge shaft; 101, first chamber; 102, second chamber; 103, connecting port; 120, oil net; 121, net body; 1211, air inlet hole; 122, connecting body; 123, flange; 130, oil receiving part; 131, oil leakage hole; 132, connecting piece; 200, chassis; 210, volute; 211, shell end; 220, oil guide part; 221, oil dripping end. DETAILED DESCRIPTION
[0030] In the following description, a large number of details are provided so that the present invention can be thoroughly understood. However, it will be appreciated by those skilled in the art that the following description only illustrates preferred embodiments of the present invention, and the present invention can be implemented without one or more of such details. In addition, in order to avoid confusion with the present invention, some technical features known in the art are not described in detail.
[0031] According to one aspect of the utility model, a fume collecting hood is provided, and the fume collecting hood is mainly applied to a range hood. Therefore, according to another aspect of the utility model, a range hood is provided.
[0032] The smoke collecting hood will first be described in detail below with reference to the accompanying drawings.
[0033] Combined with reference Figure 1 , Figure 2 , Figure 5 and Figure 6The smoke hood 100 includes a hood body 110, which encloses a first chamber 101 and a second chamber 102. The first chamber 101 and the second chamber 102 are arranged up and down and are connected to each other through a connecting port 103. An oil net 120 is arranged at the connecting port 103; the hood body 110 has a back plate 111, two side plates 112 and a smoke guide plate 113. The back plate 111 is opposite to the smoke guide plate 113, and the two side plates 112 are respectively connected to the two sides of the back plate 111. The smoke guide plate 113 is hinged on the side plate 112 to form a partial cavity wall of the second chamber 102. The smoke guide plate 113 has a top end 1131, and the connecting port 103 is located above the top end 1131.
[0034] The smoke collecting hood 100 provided by the utility model has an oil net 120 disposed at the connecting port 103 to separate the first chamber 101 from the second chamber 102, and a smoke guide plate 113 is hinged on the side plate 112 to form a partial cavity wall of the second chamber 102. After the smoke guide plate 113 is opened, on the one hand, the oil net 120 can prevent the operator from accidentally inserting his hand into the first chamber 101, thereby avoiding the problem of hand injuries caused by accidental operation and improving safety; on the other hand, it will not affect the operator's cleaning of the second chamber 102.
[0035] In one embodiment of the utility model, the smoke guide plate 113 is connected to the side plate 112 through a connecting structure 116, and the connecting structure 116 has a hinge shaft 1161. The smoke guide plate 113 rotates around the hinge shaft 1161 to open, so that the second chamber 102 is connected to the outside of the cover body 110. The oil net 120 is located at the connecting port 103 above the top 1131, blocking the first chamber 101 and the second chamber 102. The connecting structure 116 can be a common connecting rod structure, or it can be other structures that can make the smoke guide plate 113 rotatably connected to the side plate 112, which will not be described in detail here.
[0036] Combined with reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The oil net 120 includes a net body 121 and a connector 122 connected to one side of the net body 121, and the connector 122 is fixedly connected to the back plate 111. In this way, the oil net 120 is connected to the back plate 111, so that the oil flows down along the back plate 111. Compared with the oil directly dripping from the oil net 120 to the bottom of the fume hood 100, the oil flowing down along the back plate 111 can prevent excessive oil splashing when the oil drips to the bottom of the fume hood 100, thereby preventing other structures inside the range hood from being contaminated by the splashed oil. Moreover, since the oil contamination range is limited, such a second chamber 102 can be more simple and convenient to clean.
[0037] In an embodiment of the present invention, the connecting body 122 can be connected to the back plate 111 by fasteners such as bolts or screws.
[0038] In one embodiment of the present invention, refer to Figure 1 , Figure 2 and Figure 5 , the two side plates 112 are respectively connected with the outgoing bodies 1121, and the two sides of the net body 121 adjacent to the connecting body 122 are respectively connected to the outgoing bodies 1121 connected to the two side plates 112, so that the net body 121 is more firmly arranged at the connecting port 103. The net body 121 can be connected to the outgoing bodies 1121 by fasteners such as bolts or screws.
[0039] See also Figure 1 and Figure 2 , an inclination angle α is formed between the net body 121 and the back plate 111, and α is 60° to 75°. α is 60°, 65°, 70° or 75°, etc. In this way, the net body 121 is inclined, the oil flows to a lower place, and the oil attached to the net body 121 flows toward the back plate 111, so that the oil flows down along the back plate 111, preventing the oil from gathering in one place of the oil net 120, so that the holes of the oil net 120 are blocked, and the inclination angle can prevent the oil from sliding from the net body 121 to the back plate 111 at a speed that is not too large, thereby avoiding splashing when the oil reaches the back plate 111.
[0040] See also Figure 1 and Figure 2 The cover body 110 also has a front panel 114 and a connecting plate 115. The front panel 114 is opposite to the back panel 111. The connecting plate 115 is connected to the front panel 114 and has an extension plate 1151 extending toward the back panel 111. The front panel 114 and the extension plate 1151 form part of the cavity wall of the first chamber 101. The net body 121 is not higher than the extension plate 1151. In this way, the extension plate distinguishes the first chamber 101 from the second chamber 102, and the connecting port 103 is left to connect the first chamber 101 and the second chamber 102 to each other. The net body 121 is not higher than the extension plate 1151. The net body 121 blocks the first chamber 101 to prevent hand injuries and improve safety.
[0041] In one embodiment of the present invention, the extension plate 1151 may have the same inclination angle as the net body 121 , and the end of the extension plate 1151 close to the back plate 111 is adjacent to the top end 1131 of the smoke guide plate 113 .
[0042] Combined with reference Figure 1 and Figure 2, an oil receiving member 130 is arranged above the net body 121 in the first chamber 101. In this way, the oil in the oil receiving member 130 falls on the net body 121 and then flows down, and the oil in the oil receiving member 130 drips onto the net body 121, and the oil flows down along the back plate 111 after passing through the net body 121 and drips to the bottom of the smoke hood 100. There can be a height difference between the oil receiving member 130 and the net body 121. Compared with the oil directly dripping from the oil receiving member 130 to the bottom of the smoke hood 100, the net body 121 is arranged below the oil receiving member 130, so that when the oil drips to the bottom of the smoke hood 100, there will not be too much oil splashing, so as to avoid other structures inside the range hood being contaminated by the splashing oil, and because the oil contamination range is limited, such a second chamber 102 can be simpler and more convenient to clean.
[0043] In one embodiment of the utility model, an inclined angle is also formed between the oil receiving member 130 and the back plate 111, and the end of the oil receiving member 130 close to the back plate 111 is lower than the end away from the back plate 111, so that the oil on the oil receiving member 130 also flows toward the back plate 111.
[0044] Combined with reference Figure 1 and Figure 2 The oil receiving member 130 extends from the back plate 111 toward the front plate 114, and an oil leakage hole 131 is provided at the connection between the oil receiving member 130 and the back plate 111. In this way, the oil in the oil receiving member 130 flows from the oil leakage hole 131 to the back plate 111 and flows down along the back plate 111, preventing the oil from flowing out from other parts of the oil receiving member 130 and contaminating the interior of the smoke collecting hood 100.
[0045] See also Figure 1 and Figure 5 The end of the oil receiving member 130 close to the back plate 111 is connected with a connecting piece 132, an oil leakage hole 131 is left between the oil receiving member 130 and the connecting piece 132, and the side of the connecting piece 132 away from the oil receiving member 130 is connected to the back plate 111. The oil receiving member 130 and the connecting piece 132 can be manufactured in one piece, and the connecting piece 132 is directly installed on the back plate 111 during installation, which is quick and convenient to install.
[0046] Combined with reference Figure 1 and Figure 2 , the orthographic projection of the oil receiving member 130 toward the plane where the net body 121 is located falls into the net body 121. In this way, it is ensured that the oil dripped from the oil receiving member 130 falls into the net body 121.
[0047] Combined with reference Figure 1 , Figure 2 , Figure 3 and Figure 4, a flange 123 is formed on the side of the net body 121 away from the connecting body 122 toward the oil receiving member 130. In this way, the flange 123 blocks the oil from flowing down from the side of the net body 121 away from the connecting body 122.
[0048] In one embodiment of the present invention, the flange 123 and the connector 122 are in parallel.
[0049] Combined with reference Figure 3 and Figure 4 A plurality of air inlet holes 1211 are distributed on the net body 121, and the diameter of the air inlet hole 1211 is D, and D is 4 mm to 8 mm so that the air inlet hole 1211 is a small hole. D is, for example, 4 mm, 6 mm or 8 mm, etc. Thus, when the airflow passes through the small hole with a diameter of 4 mm to 8 mm, the spectrum of the jet noise will move to high frequency or ultra-high frequency, so that the audible sound component in the spectrum is significantly reduced, thereby reducing the interference and harm of noise to people.
[0050] In an embodiment of the present invention, the air inlet holes 1211 are arranged obliquely at an inclination angle β, and β may be 45°, so that the air inlet holes 1211 are arranged in order and as many as possible on the net body 121.
[0051] Combined with reference Figure 3 and Figure 4 There is a spacing L between two adjacent air inlet holes 1211, and the spacing L is 0.5 mm to 1.5 mm. The spacing L is, for example, 0.5 mm, 1.0 mm or 1.5 mm, etc. In this way, when the area of the net body 121 is constant, the spacing is minimized, and the air inlet holes 1211 are arranged as much as possible, so as to achieve the effect of not affecting the air volume.
[0052] According to another aspect of the present invention, a range hood is provided. Figure 1 , Figure 5 , Figure 6 and Figure 7 , including a chassis 200 and the above-mentioned smoke collecting hood 100, the smoke collecting hood 100 is connected to the bottom of the chassis 200. The range hood provided by the utility model, because it includes the above-mentioned smoke collecting hood 100, the range hood must have the technical effect of the above-mentioned smoke collecting hood 100.
[0053] Combined with reference Figure 6 and Figure 7 The case 200 is provided with a volute 210, the volute 210 has a case end 211 which is far away from the back plate 111, the case end 211 is connected with an oil guide 220, and the oil guide 220 extends downwardly from the case end 211 toward the back plate 111. In this way, the oil in the volute 210 flows down along the oil guide 220 toward the back plate 111.
[0054] In one embodiment of the utility model, the oil guide member 220 can have the same inclination angle as the extension plate body 1151, and the end of the oil guide member 220 close to the back plate 111 is lower than the end away from the back plate 111, so that the oil on the oil guide member 220 flows toward the back plate 111.
[0055] Combined with reference Figure 1 , Figure 6 and Figure 7 The projection of the oil guide member 220 toward the plane where the oil net 120 is located overlaps with the oil net 120, and the oil guide member 220 has an oil dripping end 221, which is located above the oil net 120. In this way, it is ensured that the oil dripped from the oil dripping end 221 of the oil guide member 220 falls on the oil net 120, and the oil net 120 collects the oil more comprehensively, further preventing the oil not collected by the oil net 120 from directly dripping on the bottom of the fume hood 100 and causing splashing.
[0056] In one embodiment of the utility model, the end of the oil guide member 220 close to the back plate 111 has an oil dripping end 221, and the oil dripping end 221 is located at the lowest point of the oil guide member 220, so that the oil on the oil guide member 220 flows toward the oil dripping end 221 and falls onto the oil net 120 from the oil dripping end 221.
[0057] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front", "back", "up", "down", "left", "right", "lateral", "vertical", "vertical", "horizontal", "top", "bottom", etc. are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present invention; the directional words "inside" and "outside" refer to the inside and outside relative to the contours of each component itself.
[0058] For ease of description, regional relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the regional positional relationship between one or more components or features shown in the figure and other components or features. It should be understood that regional relative terms include not only the orientation of the components as described in the figure, but also different orientations in use or operation. For example, if the components in the accompanying drawings are inverted as a whole, the components "above other components or features" or "above other components or features" will include the situation where the components are "below other components or structures" or "below other components or structures". Therefore, the exemplary term "above" may include both "above" and "below". In addition, these components or features may also be positioned at other different angles (e.g., rotated 90 degrees or other angles), and this article is intended to include all of these situations.
[0059] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, parts, components and / or combinations thereof.
[0060] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein.
[0061] The utility model has been described through the above embodiments, but it should be understood that the above embodiments are only for the purpose of example and description, and are not intended to limit the utility model to the scope of the described embodiments. In addition, it can be understood by those skilled in the art that the utility model is not limited to the above embodiments, and more variations and modifications can be made according to the teachings of the utility model, and these variations and modifications all fall within the scope of protection claimed by the utility model. The protection scope of the utility model is defined by the attached claims and their equivalents.
Claims
1. A smoke collecting hood, comprising a hood body, characterized in that: The cover body is enclosed to form a first chamber and a second chamber, the first chamber and the second chamber are arranged up and down and are connected to each other through a communication port, and an oil net is arranged at the communication port; Wherein, the cover body has a back plate, two side plates and a smoke guide plate, the two side plates are respectively connected to the two sides of the back plate, the smoke guide plate is hinged on the side plates to form a partial cavity wall of the second chamber, the smoke guide plate has a top end, and the connecting port is located above the top end.
2. The smoke hood according to claim 1, characterized in that: The oil net comprises a net body and a connector connected to one side of the net body, and the connector is fixedly connected to the back plate.
3. The smoke collecting hood according to claim 2, characterized in that: An inclination angle α is formed between the net body and the back plate, and α is 60° to 75°.
4. The smoke collecting hood according to claim 2, characterized in that: The cover body also has a front panel and a connecting plate, the front panel is opposite to the back panel, the connecting plate is connected to the front panel and has an extension plate body extending toward the back panel, the front panel and the extension plate body form a partial cavity wall of the first cavity, and the net body is not set higher than the extension plate body.
5. The smoke collecting hood according to claim 4, characterized in that: An oil receiving member is arranged in the first chamber above the net body.
6. The smoke collecting hood according to claim 5, characterized in that: The oil receiving member extends from the back plate toward the front plate, and an oil leakage hole is arranged at the connection between the oil receiving member and the back plate.
7. The fume hood according to claim 5, characterized in that: The orthographic projection of the oil receiving member toward the plane where the net body is located falls into the net body.
8. The fume hood according to claim 5, characterized in that: A flange is formed on a side of the net body away from the connecting body and facing the oil receiving piece.
9. The smoke collecting hood according to any one of claims 2 to 8, characterized in that: A plurality of air inlet holes with a diameter of 4 mm to 8 mm are distributed on the net body.
10. The fume hood according to claim 9, characterized in that: There is a gap between two adjacent air inlet holes, and the gap is 0.5mm to 1.5mm.
11. A range hood, characterized in that: The invention comprises a chassis and a smoke collecting hood as claimed in any one of claims 1 to 10, wherein the smoke collecting hood is connected to the bottom of the chassis.
12. The range hood according to claim 11, characterized in that: A volute is arranged in the chassis, and the volute has a shell end portion arranged away from the back plate, and an oil guide member is connected to the shell end portion, and the oil guide member extends obliquely downward from the shell end portion toward the back plate.
13. The range hood according to claim 12, characterized in that: The projection of the oil guide member toward the plane where the oil net is located has an overlapping portion with the oil net, and the oil guide member has an oil dripping end, and the oil dripping end is located above the oil net.