Range hood with good smoke gathering effect

Abstract

The range hood with the good smoke gathering effect comprises an air bellow assembly, the air bellow assembly comprises an air duct system and a cover body structure, the air duct system communicates with the cover body structure, the cover body structure comprises two air duct surrounding plates and an air bellow upper plate, the two ends of the air bellow upper plate are connected with the air duct surrounding plates correspondingly to form an n shape, and the air bellow upper plate is connected with the air duct surrounding plates. One end of a whole formed by the air bellow upper plate and the air duct surrounding plate is connected with an air duct system, the air bellow assembly further comprises two reinforcing and fixing side plates, the two reinforcing and fixing side plates are of a right-angle triangular prism structure, and the surfaces where the two right-angle sides are located are fixedly connected with the air bellow upper plate and the air duct surrounding plate respectively. The reinforcing fixing side plates of the right-angle triangular prism structures are connected to the air duct surrounding plate and the air bellow upper plate, so that the airflow turbulence degree is reduced, the possibility of large wind resistance and large noise caused by the airflow turbulence degree is reduced, and the overall performance of the fan is improved.

Description

Technical Field

[0001] This application relates to the field of range hood technology, and in particular to a range hood with good smoke collection effect. Background Technology

[0002] A range hood, also known as a cooking hood or exhaust hood, is a household appliance installed above the kitchen stove. Its main function is to extract and remove the fumes, steam, and other odors produced by heating food during cooking, thus keeping the kitchen air fresh. It helps reduce indoor pollution and protects the health of family members, making it an indispensable appliance in modern kitchens.

[0003] Some bellows on the market have poor smoke collection effect and a large degree of gas turbulence. When adsorbing oil fumes, they will generate a lot of noise due to the large wind resistance. Utility Model Content

[0004] The technical problem to be solved by the embodiments of this application is that some air boxes on the market have poor smoke collection effect, large gas turbulence, and generate a lot of noise due to large wind resistance when adsorbing oil fumes.

[0005] To address the aforementioned issues, this application provides a range hood with good smoke collection performance, comprising a wind box assembly. The wind box assembly includes a duct system and a hood structure. The duct system is connected to the hood structure. The hood structure includes two duct surrounds and a wind box top plate. Both ends of the wind box top plate are connected to the duct surrounds and form a "door" shape. One end of the assembly consisting of the wind box top plate and the duct surrounds is connected to the duct system. The wind box assembly also includes two reinforcing and fixing side plates. The two reinforcing and fixing side plates are right-angled triangular prisms, and the faces containing the two right-angled sides are fixedly connected to the wind box top plate and the duct surrounds, respectively.

[0006] Optionally, the range hood with good smoke collection effect also includes a smoke collection plate assembly, which is connected to the air box assembly.

[0007] Optionally, the range hood with good smoke collection effect further includes a smoke inlet chamber assembly, which is connected to the smoke collection plate assembly and communicates with the hood structure.

[0008] Optionally, the smoke collection plate assembly further includes a front baffle, which is disposed on the adjacent side of the smoke inlet chamber assembly. The front baffle is horizontally disposed and at a 90° angle to the smoke inlet chamber assembly.

[0009] Optionally, the range hood with good smoke collection effect further includes a first propulsion mechanism, one end of which is connected to the air box assembly and the other end of which is connected to the smoke collection plate assembly.

[0010] Optionally, the smoke collection plate assembly further includes an oil fume detection module, which is partially disposed within the smoke collection plate assembly and partially exposed on the surface of the front baffle.

[0011] Optionally, a first connecting outer guide rail is provided on the air box assembly, and a first connecting inner guide rail that matches the first connecting outer guide rail is provided on the smoke collection plate assembly, wherein the first connecting outer guide rail is arranged in a vertical direction.

[0012] Optionally, the range hood with good smoke collection effect further includes a second propulsion mechanism, one end of which is connected to the smoke collection plate assembly and the other end of which is connected to the smoke inlet chamber assembly.

[0013] Optionally, the smoke gathering plate assembly includes a side plate and a back plate. The front baffle and the side plate are disposed at one end of the smoke inlet chamber assembly, and the back plate is disposed at the other end of the smoke inlet chamber assembly. The front baffle, the side plate and the back plate are fixedly connected to each other. One end of the front baffle is connected to one end of the side plate at a 90° angle, and the side plate and the back plate are arranged parallel to each other.

[0014] Optionally, a second inner connecting guide rail is provided on the side of the smoke inlet chamber assembly near the back plate, and a second outer connecting guide rail matching the second inner connecting guide rail is provided on the side of the back plate near the smoke inlet chamber assembly, the second outer connecting guide rail being arranged in a vertical direction.

[0015] Compared with the prior art, the technical effects achieved by the embodiments of this application include:

[0016] This application strengthens the structural stability by connecting and installing a right-angled triangular prism structure on the duct enclosure and the upper plate of the wind box. This also causes the airflow to contract and converge when entering the duct system, reducing airflow turbulence and thus reducing the possibility of high wind resistance and noise, which is beneficial to improving the overall performance of the fan. Attached Figure Description

[0017] 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.

[0018] 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.

[0019] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0020] Figure 1 This is a structural diagram from one perspective of this application.

[0021] Figure 2 This is a structural diagram from another perspective of this application.

[0022] Figure 3 This is an exploded view of the present application excluding the outer casing.

[0023] Figure 4 for Figure 3 Exploded view of the section excluding the flip-top.

[0024] Figure 5 This is a structural diagram of the flip cover.

[0025] Figure 6 This is a structural diagram of the back plate, smoke inlet chamber assembly, and oil brush.

[0026] Figure 7 This is a structural diagram of a portion of the structure of this application.

[0027] Figure 8 for Figure 7 Enlarged view of point A in the middle.

[0028] Figure 9 This is a structural diagram of the main body being tested.

[0029] Figure 10 for Figure 7 A structural diagram from another perspective.

[0030] Figure 11 This is a structural diagram of the backplate, the smoke inlet chamber assembly, and the second propulsion mechanism.

[0031] Figure 12 for Figure 11 A structural diagram from another perspective.

[0032] Figure 13 This is a structural diagram of the backplate and the second propulsion mechanism.

[0033] Figure 14 This is a structural diagram of the present application, excluding part of the outer shell, back plate, and second propulsion mechanism.

[0034] Figure 15 This is a structural diagram of part of the air box assembly, the smoke inlet chamber assembly, and the third connecting outer guide rail and the third connecting inner guide rail.

[0035] Figure Labels

[0036] 1. Outer shell; 2. Air box assembly; 3. Smoke inlet chamber assembly; 4. Smoke collecting plate assembly; 5. First propulsion mechanism; 6. Second propulsion mechanism; 7. First opening; 8. Second opening; 9. Front baffle; 10. Side plate; 11. Back plate; 12. Front plate; 13. First oil box; 14. Receiving groove; 15. Flip cover; 16. Boss; 17. Spring buckle structure; 18. Handle position; 19. Oil brush; 20. Second oil box; 21. Oil fume detection module; 22. Fixing base; 23. Detection body; 24. Fixing cover; 25. Connecting pipe; 2 6. Connector; 27. Fume Detection Inlet; 28. Fume Detection Outlet; 29. ​​Air Inlet; 30. Void Trough; 31. Smoke Inlet; 32. Strip Hole; 33. Fixed Concave Plate Structure; 34. Second Propulsion Cylinder; 35. First Connecting Outer Guide Rail; 36. First Connecting Inner Guide Rail; 37. Second Connecting Outer Guide Rail; 38. Second Connecting Inner Guide Rail; 40. Duct System; 41. Cover Structure; 42. Air Box Enclosure; 43. Air Box Top Plate; 44. Reinforced Fixed Side Plate; 45. Third Connecting Outer Guide Rail; 46. Third Connecting Inner Guide Rail. Detailed Implementation

[0037] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Similar component reference numerals in the drawings represent similar components. Obviously, the embodiments described below are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0038] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0039] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the embodiments of this application. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0040] Please see Figure 1-15This application provides a liftable range hood, including a housing 1, a bellows assembly 2, a smoke inlet chamber assembly 3, a smoke collection plate assembly 4, a first propulsion mechanism 5, and a second propulsion mechanism 6. The smoke inlet chamber assembly 3 is partially disposed inside the smoke collection plate assembly 4 and partially exposed on the surface of the smoke collection plate assembly 4, and is used to provide an inlet for oil fumes. The smoke collection plate assembly 4 is partially disposed inside the housing 1 and partially exposed on the surface of the housing 1, and is used to reduce the probability of oil fumes escaping. The bellows assembly 2 is partially disposed inside the housing 1 and partially extends out of the housing 1, and is connected to the smoke inlet chamber assembly 3, and is used to draw the oil fumes entering from the smoke inlet chamber assembly 3 to the outside. One end of the first propulsion mechanism 5 is connected to the bellows assembly 2, and the other end is connected to the smoke collection plate assembly 4. One end of the second propulsion mechanism 6 is connected to the smoke collection plate assembly 4, and the other end is connected to the smoke inlet chamber assembly 3. During operation, the first propulsion mechanism 5 drives the smoke inlet chamber assembly 3, the smoke collection plate assembly 4, and the second propulsion mechanism 6 to move away from or towards the air box assembly 2. This allows for the adsorption of oil fumes near the smoke source and the collection of fumes away from the smoke source, increasing the space above the smoke source for other operations. During operation, the second propulsion mechanism 6 drives the smoke inlet chamber assembly 3 to move away from or towards the air box assembly 2, bringing the smoke inlet chamber assembly 3 closer to the smoke source. This reduces the probability of oil fumes escaping and allows for precise smoke extraction. The design of the first propulsion mechanism 5 and the second propulsion mechanism 6 helps to make the space where the smoke source is located "smokeless" and reduces smoke pollution.

[0041] Furthermore, a first opening 7 is provided at the end of the smoke collecting plate assembly 4 away from the bellows assembly 2. The shape and size of the first opening 7 match one end of the smoke inlet chamber assembly 3. The smoke inlet chamber assembly 3 is partially disposed inside the smoke collecting plate assembly 4 and partially exposed at the first opening 7. The second propulsion mechanism 6 pushes the smoke inlet chamber assembly 3 partially out of the first opening 7 or brings it back to the first opening 7. The smoke inlet chamber assembly 3 is partially located inside the smoke collecting plate assembly 4 and partially exposed at the first opening 7. It protrudes during operation and remains flush with the smoke collecting plate assembly 4 when not in operation, thus achieving a concealed design and avoiding the situation where the structure protrudes and is inconvenient for transportation or easily bumped with external objects. A second opening 8 is also provided at the end of the outer shell 1 away from the bellows assembly 2. The shape and size of the second opening 8 match the shape and size of part of the smoke collecting plate assembly 4. The smoke collecting plate assembly 4 is partially disposed inside the outer shell 1 and partially exposed at the second opening 8. When in operation, the first propulsion mechanism 5 drives the smoke collecting plate assembly 4 to move closer to the smoke source or return it to its original position.

[0042] Please see Figure 4 and Figure 12The smoke-collecting plate assembly 4 of this application includes a front baffle 9, a side plate 10, a back plate 11, and a front plate 12. The front plate 12 and the side plate 10 are connected to both ends of one side of the front baffle 9, and the three together form a "door" shape. The smoke inlet chamber assembly 3 is disposed between the side plate 10 and the back plate 11, wherein the front baffle 9 and the side plate 10 are disposed at one end of the smoke inlet chamber assembly 3, and the front baffle 9, the side plate 10, and the back plate 11 are fixedly connected to each other. The front baffle 9 is horizontally arranged, and one end of it is connected to one end of the side plate 10 at a 90° angle. The side plate 10, the back plate 11, and the smoke inlet chamber assembly 3 are arranged in parallel. The front baffle 9 serves as a smoke-collecting plate, which is used to prevent the oil fumes from escaping to a certain extent, collects the smoke, and is located in front of the smoke inlet chamber assembly 3 to facilitate the adsorption of the air box assembly 2 through the smoke inlet chamber assembly 3. The output end of the first propulsion mechanism 5 is fixedly connected to the side plate 10.

[0043] Please continue reading. Figure 3-5 The smoke collection plate assembly 4 also includes a first oil box 13. A receiving groove 14 matching the shape and size of the first oil box 13 is provided on the front plate 12, and the first oil box 13 is housed in the receiving groove 14. The position of the first oil box 13 corresponds to the position of the air box assembly 2 and is used for collecting oil stains in the air duct. A flip cover 15 is provided at one end of the receiving groove 14. The flip cover 15 is pivotally connected to one end of the receiving groove 14 and can be rotated by external force to completely cover the opening of the receiving groove 14. A boss 16 is provided at the free end of the flip cover 15, and a spring buckle structure 17 is provided at the end of the receiving groove 14 away from the flip cover 15. The boss 16 matches the spring buckle structure 17, and the user can achieve the snap connection and separation of the boss 16 and the spring buckle by pressing the flip cover 15. The design of the flip cover 15, the boss 16, and the spring-loaded latch structure 17 enables convenient installation and removal of the first oil box 13, eliminating the need for protruding structures such as handles, reducing the possibility of scratches during transportation, and facilitating a concealed design for the product. Furthermore, a handle 18 is provided on the side of the first oil box 13 near the receiving groove 14, making it easy for the user to pull out, replace, and clean the first oil box 13. Preferably, the first oil box 13 is made of glass, plastic, stainless steel, or aluminum alloy, which has the advantages of being resistant to deformation and corrosion, and easy to clean.

[0044] Please continue reading. Figure 6An oil brush 19 is provided on the smoke collection plate assembly 4. One end of the oil brush 19 is fixed to the side plate 10, and the other end abuts against a side wall of the smoke inlet chamber assembly 3. This side wall extends out and is exposed to the oil fumes during operation. After the oil fumes condense, oil stains form on the side wall. After operation, the brush 19 retracts, scraping off the formed oil stains, thus achieving cleaning. This helps improve the cleanliness of the product and reduce the corrosion of the product by oil stains, thus reducing its service life. Furthermore, a second oil box 20 is provided at the end of the smoke inlet chamber assembly 3, directly below the oil brush 19. The oil stains scraped off by the brush 19 drip into the second oil box 20, achieving centralized collection of oil stains and preventing oil stains from dripping into the room and polluting the indoor environment. Specifically, a detachable oil absorption structure is also provided in the second oil box 20, which allows for centralized absorption, removal, cleaning, or replacement of oil stains, avoiding the inconvenience of handling liquid oil stains. Preferably, the oil absorption structure is oil-absorbing paper or sponge.

[0045] In this application, the first oil box 13 is located at the smoke collection plate assembly 4 instead of the outer casing 1. When the smoke collection plate assembly 4 moves down, its height is reduced, making it easier for users to view and retrieve, and also reducing the possibility of oil spillage. The second oil box 20 is located at the smoke inlet chamber assembly 3, specifically at the end away from the air box assembly 2. Thus, when the smoke inlet chamber assembly 3 is lowered by the first propulsion mechanism 5 and the second propulsion mechanism 6, users can easily view the oil stains there for timely treatment, avoiding the possibility of excessive oil accumulation and overflow that could pollute the indoor environment.

[0046] Please see Figure 7-8The smoke collection plate assembly 4 of this application also includes an oil fume detection module 21. The oil fume detection module 21 is partially disposed within the smoke collection plate assembly 4 and partially exposed on the surface of the front baffle 9. The oil fume detection module 21 is used to detect the concentration of oil fumes generated by the smoke source, and the value can be displayed on the front plate 12. Users can understand the smoke generation situation of different food preparations, such as cooking, based on the oil fume concentration of each time, and then adjust the specific oil fume adsorption power according to the specific food preparation. Further, the oil fume detection module 21 includes a fixing base 22, a detection body 23, a fixing cover 24, a connecting pipe 25, and a connector 26. The fixing base 22 is fixedly connected to the front baffle 9, and the fixing cover 24 is connected to the fixing base 22. The detection body 23 is partially fixedly disposed in the space formed by the fixing cover 24 and the fixing base 22, partially protrudes from the fixing base 22 and is exposed on the surface of the front baffle 9, and partially protrudes from the fixing cover 24 and is connected to one end of the connecting pipe 25. The other end of the connecting pipe 25 is connected to the connector 26. The detection body 23 acquires oil fumes from the fixed base 22, performs concentration detection, and then releases the oil fumes from the connecting pipe 25 and the connector 26. The connector 26 is connected to the air box assembly 2 so that after a strong negative pressure is formed at the air box assembly 2, there is also a certain negative pressure at the connector 26. The oil fumes located at the front baffle 9 can more easily enter the oil fume detection module 21, which helps to improve the accuracy of the detection.

[0047] Please continue reading. Figure 7-9 The detection body 23 includes an oil fume detection inlet 27, an oil fume detection outlet 28, and two air inlets 29. The oil fume detection inlet 27 is exposed on the surface of the front baffle 9, and the oil fume detection outlet 28 is exposed on the surface of the fixed cover 24 and connected to the connecting pipe 25. Air-proof grooves 30 communicating with the air inlets 29 are provided at both ends of the fixed cover 24 and the fixed base 22. The design of the air-proof grooves 30 allows the air inlets 29 of the detection body 23 to communicate with the air inside the smoke-collecting plate assembly 4. Preferably, the connecting pipe 25 is made of a retractable flexible hose, so that when the smoke-collecting plate assembly 4 is driven by the first pushing mechanism 5, there is no possibility that the connecting pipe 25 will break due to its inability to extend or retract.

[0048] Please continue reading. Figure 10 A smoke inlet 31 is provided at the smoke inlet assembly 3. The smoke inlet 31 is located at one end near the front baffle 9. The smoke inlet assembly 3 is in the form of a drawer structure. One end of it extends out during operation, and the air box assembly 2 sucks up the oil fumes at the other end, so that the extended end has a certain adsorption force to adsorb the oil fumes.

[0049] Please continue reading. Figure 11-13One end of the second propulsion mechanism 6 is connected to the back plate 11, and the other end is connected to the smoke inlet chamber assembly 3. That is, when the second propulsion mechanism 6 is working, it pushes the smoke inlet chamber assembly 3 out and pulls it back relative to the back plate 11. Specifically, a strip-shaped hole 32 is provided on the back plate 11. The second propulsion mechanism 6 includes a fixed concave plate structure 33 and a second propulsion cylinder 34. The fixed concave plate structure 33 is fixedly connected to the periphery of the strip-shaped hole 32 at the end of the back plate 11 away from the side plate 10. The second propulsion cylinder 34 is located inside the strip-shaped hole 32, with one end connected to the fixed concave plate structure 33 and the other end connected to the smoke inlet chamber assembly 3. The fixed concave plate structure 33 is different from standard sheet metal parts; it can be connected to the back plate 11 on all four sides, providing better fixation and achieving the fixation of the second propulsion cylinder 34 and the linkage between the smoke inlet chamber assembly 3 and the smoke gathering plate assembly 4.

[0050] Please continue reading. Figure 3 A first connecting outer guide rail 35 is provided on the bellows assembly 2, and a first connecting inner guide rail 36 matching the first connecting outer guide rail 35 is provided on the smoke collecting plate assembly 4. The first connecting outer guide rail 35 is arranged vertically and fits around the outside of the first connecting inner guide rail 36. Together with the first propulsion mechanism 5, it constrains the direction of movement, preventing deviation and direct collision between structures. A second connecting inner guide rail 38 is provided on the side of the smoke inlet chamber assembly 3 near the back plate 11, and a second connecting outer guide rail 37 matching the second connecting inner guide rail 38 is provided on the side of the back plate 11 near the smoke inlet chamber assembly 3. The second connecting outer guide rail 37 is arranged vertically and fits around the outside of the second connecting inner guide rail 38. Together with the second propulsion mechanism 6, it constrains the direction of movement, preventing deviation and direct collision between structures. Please refer to [link / reference]. Figure 6 and Figure 15 A third connecting outer guide rail 45 is provided on the bellows assembly 2, and a third connecting inner guide rail 46 matching the third connecting outer guide rail 45 is provided on the outer side of the smoke inlet chamber assembly 3. The third connecting outer guide rail 45 is arranged vertically. The third connecting outer guide rail 45 is fitted around the outer side of the third connecting inner guide rail 46, which increases the structural stability of the smoke inlet chamber assembly 3 during vertical movement, constrains the movement direction of the smoke inlet chamber assembly 3, and avoids the possibility of structural loosening due to displacement in other directions.

[0051] In this application, an oil leakage hole (not shown) is provided on the bellows assembly 2. The oil leakage hole is located directly above the first oil box 13. The oil leakage hole allows the oil inside the bellows assembly 2 to leak out and drip into the first oil box 13. A guide pipe is also provided on the bellows assembly 2. One end of the guide pipe is connected to the oil leakage hole, and the other end is located directly above the first oil box 13. By providing the guide pipe, the height of the oil dripping is reduced and the accuracy of the dripping is improved, which helps to reduce the pollution caused by oil dripping outside and splashing of liquid droplets.

[0052] Please see Figure 14-15 The bellows assembly 2 includes a duct system 40 and a cover structure 41. The duct system 40 is connected to the cover structure 41. The smoke inlet chamber assembly 3 is connected to the cover structure 41. The cover structure 41 includes two bellows enclosure plates 42 and a bellows top plate 43. The two ends of the bellows top plate 43 are respectively connected to the bellows enclosure plates 42 to form a "door" shape. One end of the whole consisting of the bellows top plate 43 and the bellows enclosure plates 42 is connected to the duct system 40. The bellows assembly 2 also includes two reinforcing and fixing side plates 44. The two reinforcing and fixing side plates 44 are right-angled triangular prisms, and the faces containing the two right-angled sides are respectively fixedly connected to the bellows top plate 43 and the bellows enclosure plates 42. By connecting and installing reinforced fixed side plates 44 with right-angled triangular prism structure at the wind box enclosure plate 42 and the wind box top plate 43, the stability of the structure is enhanced, and the airflow also undergoes a contraction and convergence process when entering the air duct system 40, reducing airflow turbulence and thus reducing the possibility of large wind resistance and large noise, which is conducive to improving the overall performance of the fan.

[0053] Compared with the prior art, the technical effects achieved by the embodiments of this application include:

[0054] This application strengthens the structural stability by connecting and installing a right-angled triangular prism structure on the duct enclosure and the upper plate of the wind box. This also causes the airflow to contract and converge when entering the duct system, reducing airflow turbulence and thus reducing the possibility of high wind resistance and noise, which is beneficial to improving the overall performance of the fan.

[0055] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0056] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0057] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0058] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a 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. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0059] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0060] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0061] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Since these modifications and variations fall within the scope of the claims and their equivalents, this application also intends to include these modifications and variations.

[0062] The above description describes specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A range hood with good smoke collection effect, characterized in that: The device includes a bellows assembly, which comprises a duct system and a cover structure. The duct system is connected to the cover structure. The cover structure includes two duct enclosures and a bellows top plate. Both ends of the bellows top plate are connected to the duct enclosures to form a "door" shape. One end of the bellows top plate and the duct enclosures are connected to the duct system. The bellows assembly also includes two reinforcing and fixing side plates. The two reinforcing and fixing side plates are right-angled triangular prisms, and the faces containing the two right-angled sides are fixedly connected to the bellows top plate and the duct enclosures, respectively.

2. The range hood with good smoke collection effect according to claim 1, characterized in that: The range hood with good smoke collection effect also includes a smoke collection plate assembly, which is connected to the air box assembly.

3. The range hood with good smoke collection effect according to claim 2, characterized in that: The range hood with good smoke collection effect also includes a smoke inlet chamber assembly, which is connected to the smoke collection plate assembly and communicates with the cover structure.

4. The range hood with good smoke collection effect according to claim 3, characterized in that: The smoke collection plate assembly also includes a front baffle, which is disposed on the adjacent side of the smoke inlet chamber assembly. The front baffle is horizontally disposed and at a 90° angle to the smoke inlet chamber assembly.

5. The range hood with good smoke collection effect according to claim 2, characterized in that: The range hood with good smoke collection effect also includes a first propulsion mechanism, one end of which is connected to the air box assembly and the other end of which is connected to the smoke collection plate assembly.

6. The range hood with good smoke collection effect according to claim 4, characterized in that: The smoke collection plate assembly also includes an oil fume detection module, which is partially disposed inside the smoke collection plate assembly and partially exposed on the surface of the front baffle.

7. The range hood with good smoke collection effect according to claim 5, characterized in that: A first connecting outer guide rail is provided on the air box assembly, and a first connecting inner guide rail that matches the first connecting outer guide rail is provided on the smoke collection plate assembly. The first connecting outer guide rail is arranged in a vertical direction.

8. The range hood with good smoke collection effect according to claim 4, characterized in that: The range hood with good smoke collection effect also includes a second propulsion mechanism, one end of which is connected to the smoke collection plate assembly and the other end of which is connected to the smoke inlet chamber assembly.

9. The range hood with good smoke collection effect according to claim 8, characterized in that: The smoke collection plate assembly includes a side plate and a back plate. The front baffle and the side plate are disposed at one end of the smoke inlet chamber assembly, and the back plate is disposed at the other end of the smoke inlet chamber assembly. The front baffle, the side plate and the back plate are fixedly connected to each other. One end of the front baffle is connected to one end of the side plate at a 90° angle. The side plate and the back plate are arranged in parallel.

10. The range hood with good smoke collection effect according to claim 9, characterized in that: A second inner connecting guide rail is provided on the side of the smoke inlet chamber assembly near the back plate, and a second outer connecting guide rail that matches the second inner connecting guide rail is provided on the side of the back plate near the smoke inlet chamber assembly. The second outer connecting guide rail is arranged in a vertical direction.

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