Lifting type range hood

Abstract

The invention relates to the technical field of range hoods, in particular to a lifting type range hood which comprises an air bellow assembly, a smoke inlet cavity assembly, a smoke gathering plate assembly, a first propelling mechanism and a second propelling mechanism, one end of the first propelling mechanism is connected with the air bellow assembly, and the other end of the first propelling mechanism is connected with the smoke gathering plate assembly; one end of the second propelling mechanism is connected with the smoke gathering plate assembly, the other end of the second propelling mechanism is connected with the smoke inlet cavity assembly, and the second propelling mechanism drives the smoke inlet cavity assembly to move in the direction away from the air bellow assembly or move in the direction close to the air bellow assembly when working. The first propelling mechanism drives the smoke inlet cavity assembly, the smoke gathering plate assembly and the second propelling mechanism to move in the direction away from the air bellow assembly or in the direction close to the air bellow assembly during working. By arranging the first pushing mechanism, the overall position of the smoke gathering plate can be adjusted, the smoke gathering plate can be closer to a smoke source, the smoke gathering effect is improved, and by arranging the second pushing mechanism, the risk of oil smoke escape is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of range hoods, in particular to a lifting range hood. Background Art

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

[0003] Some range hoods on the market are far away from the smoke source, resulting in poor smoke extraction effect. Even if some of them have the smoke inlet chamber raised and lowered, the position of the smoke collection plate is still high, so that the smoke may still escape. Summary of the invention

[0004] The technical problem to be solved by the embodiments of the present invention is that some range hoods on the market are far away from the smoke source, resulting in poor smoke extraction effect. Even if some of them have the smoke inlet chamber raised and lowered, the position of the smoke collecting plate is still high, so that the smoke may still escape.

[0005] In order to solve the above problems, an embodiment of the present invention provides a lifting type range hood, including a bellows assembly, a smoke inlet chamber assembly, a smoke collecting plate assembly, a first propulsion mechanism and a second propulsion mechanism, one end of the first propulsion mechanism is connected to the bellows assembly, and the other end is connected to the smoke collecting plate assembly, one end of the second propulsion mechanism is connected to the smoke collecting plate assembly, and the other end is connected to the smoke inlet chamber assembly, the second propulsion mechanism drives the smoke inlet chamber assembly to move in a direction away from the bellows assembly or in a direction close to the bellows assembly when working, and the first propulsion mechanism drives the smoke inlet chamber assembly, the smoke collecting plate assembly and the second propulsion mechanism to move in a direction away from the bellows assembly or in a direction close to the bellows assembly when working.

[0006] Optionally, a first opening is provided at one end of the smoke collecting plate assembly, and the shape and size of the first opening match one end of the smoke inlet chamber assembly. The smoke inlet chamber assembly is partially provided in the smoke collecting plate assembly and partially exposed at the first opening.

[0007] Optionally, the lift-type range hood further comprises a shell, the bellows assembly is partially disposed in the shell and partially extends out of the shell, and the smoke collecting plate assembly is partially disposed in the shell and partially exposed on the surface of the shell.

[0008] Optionally, a second opening is provided at one end of the shell away from the bellows assembly, and the shape and size of the second opening match the partial shape and size of the smoke collecting plate assembly. The smoke collecting plate assembly is partially provided in the shell and partially exposed at the second opening.

[0009] Optionally, a smoke inlet is provided at the smoke inlet chamber assembly, and the smoke inlet is provided at one end close to the smoke collecting plate assembly.

[0010] Optionally, the smoke collecting plate assembly includes a front baffle plate, a side plate and a back plate, the front baffle plate and the side plate are arranged at one end of the smoke inlet chamber assembly, and the back plate is arranged at the other end of the smoke inlet chamber assembly, the front baffle plate, the side plate and the back plate are fixedly connected to each other, one end of the front baffle plate is connected to one end of the side plate at an angle of 90°, and the side plate is arranged parallel to the back plate.

[0011] Optionally, a strip hole is provided on the back plate, and the second propulsion mechanism includes a fixed concave plate structure and a second propulsion cylinder. The fixed concave plate structure is fixedly connected to the side of the strip hole at one end of the back plate away from the side plate. The second propulsion cylinder is located in the strip hole, and one end is connected to the fixed concave plate structure, and the other end is connected to the smoke inlet chamber assembly. When working, the second propulsion cylinder pushes the smoke inlet chamber assembly to move in a direction away from the bellows assembly or in a direction close to the bellows assembly.

[0012] Optionally, a first connecting outer guide rail is provided on the wind box assembly, and a first connecting inner guide rail matching the first connecting outer guide rail is provided on the smoke collecting plate assembly, and the first connecting outer guide rail is provided in a vertical direction.

[0013] Optionally, a second connecting outer guide rail is arranged on a surface of the smoke inlet chamber assembly close to the back plate, and a second connecting inner guide rail matching the second connecting outer guide rail is arranged on a surface of the back plate close to the smoke inlet chamber assembly, and the second connecting outer guide rail is arranged in a vertical direction.

[0014] Optionally, a third connecting outer guide rail is provided on the wind box assembly, and a third connecting inner guide rail matching the third connecting outer guide rail is provided on the outer side of the smoke inlet chamber assembly, and the third connecting outer guide rail is provided in a vertical direction.

[0015] Compared with the prior art, the technical effects achieved by the embodiments of the present invention include: By providing a first propulsion mechanism, the overall position of the smoke collecting plate can be adjusted and can be closer to the smoke source, thereby improving the smoke collecting effect. By providing a second propulsion mechanism, the smoke inlet chamber assembly can be further closer to the smoke source, so that the generated oil fume can be adsorbed more quickly, thereby improving the adsorption efficiency and reducing the risk of oil fume escape. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0018] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0019] Figure 1 A three-dimensional structural diagram of a lifting range hood according to the present invention from one perspective; Figure 2 It is a three-dimensional structural diagram of the lifting type range hood of the present invention from another perspective; Figure 3 The exploded view of the lifting type range hood of the present invention except for the outer shell; Figure 4 for Figure 3 Exploded view except for the flap panel; Figure 5 It is a three-dimensional structural diagram of the flip cover; Figure 6 It is a three-dimensional structural diagram of the back plate, smoke inlet chamber assembly and oil brush; Figure 7 It is a three-dimensional diagram of the partial structure of the lifting type range hood of the present invention; Figure 8 for Figure 7 The enlarged view of point A in the middle; Fig. 9 A three-dimensional structural diagram of the detection subject; Fig.10 for Figure 7 A three-dimensional structure diagram from another perspective; Fig.11 It is a three-dimensional structural diagram of the back plate, the smoke inlet chamber assembly and the second propulsion mechanism; Fig.12 for Fig.11 A three-dimensional structure diagram from another perspective; Fig.13 It is a three-dimensional structural diagram of the back plate and the second propulsion mechanism; Fig.14 It is a three-dimensional structural diagram of the lifting type range hood of the present invention except for a part of the outer shell, the back plate and the second propulsion mechanism; Fig.15 It is a three-dimensional structural diagram of part of the wind box assembly, the smoke inlet chamber assembly, the third connecting outer guide rail, and the third connecting inner guide rail.

[0020] Reference numerals 1. Shell; 2. Bellows 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. Accommodating groove; 15. Flip cover plate; 16. Boss; 17. Spring buckle structure; 18. Handle position; 19. Oil brush; 20. Second oil box; 21. Oil smoke detection module; 22. Fixed seat; 23. Detection body; 24. Fixed cover; 25. Connecting pipe; 2 6. Connector; 27. Fume detection inlet; 28. Fume detection outlet; 29. ​​Air inlet; 30. Air avoidance groove; 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. Air duct system; 41. Cover structure; 42. Bellows enclosure; 43. Bellows top plate; 44. Strengthened fixed side panel; 45. Third connecting outer guide rail; 46. Third connecting inner guide rail. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Similar component numbers in the drawings represent similar components. Obviously, the embodiments described below are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0022] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0023] It should also be understood that the terms used in this specification of the embodiments of the present application are only for the purpose of describing specific embodiments and are not intended to limit the embodiments of the present application. As used in the specification of the embodiments of the present application and the appended claims, unless the context clearly indicates otherwise, the singular forms of "a", "an" and "the" are intended to include plural forms.

[0024] See also Figure 1-15The present invention provides a lifting type range hood, comprising a shell 1, a bellows assembly 2, a smoke inlet chamber assembly 3, a smoke collecting plate assembly 4, a first propulsion mechanism 5 and a second propulsion mechanism 6. The smoke inlet chamber assembly 3 is partially arranged in the smoke collecting plate assembly 4 and partially exposed on the surface of the smoke collecting plate assembly 4, and is used to provide an oil smoke inlet port. The smoke collecting plate assembly 4 is partially arranged in the shell 1 and partially exposed on the surface of the shell 1, and is used to reduce the probability of oil smoke escaping. The bellows assembly 2 is partially arranged in the shell 1 and partially extends out of the shell 1, and is communicated with the smoke inlet chamber assembly 3, and is used to suck the oil smoke entering from the smoke inlet chamber assembly 3 to the outdoors. One end of the first propulsion mechanism 5 is connected to the bellows assembly 2, and the other end is connected to the smoke collecting plate assembly 4. One end of the second propulsion mechanism 6 is connected to the smoke collecting plate assembly 4, and the other end is connected to the smoke inlet chamber assembly 3. When working, the first propulsion mechanism 5 drives the smoke inlet chamber assembly 3, the smoke collecting plate assembly 4 and the second propulsion mechanism 6 to move in the direction away from the bellows assembly 2 or in the direction close to the bellows assembly 2, that is, to achieve oil fume adsorption close to the smoke source, and to achieve storage away from the smoke source and increase the space above the smoke source for the user to perform other operations; when working, the second propulsion mechanism 6 drives the smoke inlet chamber assembly 3 to move in the direction away from the bellows assembly 2 or in the direction close to the bellows assembly 2, so that the smoke inlet chamber assembly 3 is closer to the smoke source, so as to reduce the probability of oil fume escaping and to accurately extract the oil fume. The setting of the first propulsion mechanism 5 and the second propulsion mechanism 6 is conducive to promoting the "smoke-free" space where the smoke source is located and reducing smoke pollution.

[0025] Further, a first opening 7 is provided at one end of the smoke collecting plate assembly 4 away from the bellows assembly 2, and the shape and size of the first opening 7 match one end of the smoke inlet chamber assembly 3, and the smoke inlet chamber assembly 3 is partially arranged in the smoke collecting plate assembly 4, and partially exposed at the first opening 7. The second propulsion mechanism 6 pushes part of the smoke inlet chamber assembly 3 out of the first opening 7, or brings it back to the first opening 7; the smoke inlet chamber assembly 3 is partially located in the smoke collecting plate assembly 4, and partially exposed at the first opening 7, protruding when working, and keeping flush with the smoke collecting plate assembly 4 when not working, realizing a hidden design, avoiding the situation that the protruding structure is inconvenient for transportation and easy to collide with foreign objects; a second opening 8 is also provided at one end of the housing 1 away from the bellows assembly 2, and the shape and size of the second opening 8 match part of the shape and size of the smoke collecting plate assembly 4, and the smoke collecting plate assembly 4 is partially arranged in the housing 1, and partially exposed at the second opening 8, and the first propulsion mechanism 5 drives the smoke collecting plate assembly 4 to approach the smoke source or return when working.

[0026] See also Figure 4 and Fig.12The smoke collecting plate assembly 4 of the present invention comprises a front baffle 9, a side plate 10, a back plate 11 and a front plate 12, wherein the front plate 12 and the side plate 10 are connected to the two ends of one side of the front baffle 9, and the three are in the shape of a "door" as a whole, and the smoke inlet chamber assembly 3 is arranged between the side plate 10 and the back plate 11, wherein the front baffle 9 and the side plate 10 are arranged 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, and the front baffle 9 is arranged horizontally, and one end thereof is connected to one end of the side plate 10 at an angle of 90°, and the side plate 10, the back plate 11 and the smoke inlet chamber assembly 3 are arranged in parallel. The front baffle 9 is used as a smoke collecting plate, which is used to prevent the escape of oil smoke and collect smoke to a certain extent, and is located in front of the smoke inlet chamber assembly 3 to facilitate the adsorption of the bellows 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.

[0027] Please continue reading Figure 3-5 The cigarette collecting 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 accommodated in the receiving groove 14. The position of the first oil box 13 corresponds to the position of the bellows assembly 2, and is used to collect oil pollution in the air duct. A flip plate 15 is provided at one end of the receiving groove 14, and the flip plate 15 is pivotally connected to one end of the receiving groove 14 and can be rotated by an external force to completely cover the opening of the receiving groove 14. A boss 16 is provided at the free end of the flip plate 15, and a spring buckle structure 17 is provided at the end of the receiving groove 14 away from the flip plate 15. The boss 16 matches the spring buckle structure 17, and the user can realize the buckle connection and separation of the boss 16 and the spring buckle by pressing the flip plate 15. The design of the flip cover plate 15, the boss 16, and the spring buckle structure 17 realizes the accommodation, convenient installation and removal of the first oil box 13, without the need to set a handle or other structure protruding from the surface, reducing the possibility of scratches during transportation and facilitating the design of the product in a hidden direction. Furthermore, a buckle position 18 is provided on one side of the first oil box 13 close to the accommodating groove 14, so that the user can pull out, replace, and clean the first oil box 13. Preferably, the material of the first oil box 13 is glass, plastic, stainless steel, or aluminum alloy, which has the advantages of being not easily deformed, not easily corroded, and easy to clean.

[0028] Please continue reading Figure 6, an oil brush 19 is arranged on the smoke collecting plate assembly 4, one end of the oil brush 19 is fixed to the side plate 10, and the other end is in contact with a side wall of the smoke inlet chamber assembly 3. The side wall is extended and exposed to the smoke during operation, and oil stains are formed on the side wall after the smoke condenses. After the work is completed, the oil brush 19 retreats, and the oil stains formed are scraped off, thereby achieving cleaning, which is beneficial to improving the cleanliness of the product and reducing the corrosion of the oil stains on the product and affecting its service life. Further, a second oil box 20 corresponding to the oil brush 19 is arranged at the end of the smoke inlet chamber assembly 3 and directly below the oil brush 19. The oil stains scraped off by the oil brush 19 drip into the second oil box 20, thereby achieving centralized recovery of the oil stains and avoiding the oil stains from dripping into the room and polluting the indoor environment. Specifically, a detachable oil absorption structure is also arranged in the second oil box 20, so that the oil stains are concentratedly adsorbed, removed, cleaned or replaced, avoiding the situation where the liquid oil stains are inconvenient to handle. Preferably, the oil absorption structure is oil absorption paper or sponge.

[0029] In the present invention, the first oil box 13 is arranged at the smoke collecting plate assembly 4 instead of at the outer shell 1. When the smoke collecting plate assembly 4 moves downward, the height is reduced, which is convenient for users to check and take, and also reduces the possibility of oil spillage; the second oil box 20 is arranged at the smoke inlet chamber assembly 3, specifically at one end away from the bellows assembly 2, so that when the smoke inlet chamber assembly 3 is brought down by the first propulsion mechanism 5 and the second propulsion mechanism 6, the user can easily check the oil there for timely processing, thereby avoiding the possibility of excessive accumulation of oil and overflow and polluting the indoor environment.

[0030] See also Figure 7-8The smoke collecting plate assembly 4 of the present invention also includes an oil smoke detection module 21. The oil smoke detection module 21 is partially arranged in the smoke collecting plate assembly 4 and partially exposed on the surface of the front baffle 9. The oil smoke detection module 21 is used to detect the oil smoke concentration generated by the smoke source. The value can be displayed on the front plate 12. The user can understand the smoke situation of different items such as cooking according to the oil smoke concentration each time, and then adjust the specific oil smoke adsorption power according to the specific item production. Further, the oil smoke detection module 21 includes a fixed seat 22, a detection body 23, a fixed cover 24, a connecting pipe 25 and a connecting head 26. The fixed seat 22 is fixedly connected to the front baffle 9, and the fixed cover 24 is connected to the fixed seat 22. The detection body 23 is partially fixedly arranged in the space formed by the fixed cover 24 and the fixed seat 22, and partially extends from the fixed seat 22 and is exposed on the surface of the front baffle 9, and partially extends from the fixed cover 24 and is connected to one end of the connecting pipe 25, and the other end of the connecting pipe 25 is connected to the connecting head 26. The detection body 23 obtains the oil smoke from the fixed seat 22, performs concentration detection, and then releases the oil smoke from the connecting pipe 25 and the connecting head 26; wherein the connecting head 26 is connected to the bellows assembly 2, so that after a strong negative pressure is formed at the bellows assembly 2, there is also a certain negative pressure at the connecting head 26, and the oil smoke located at the front baffle 9 can more easily enter the oil smoke detection module 21, which is beneficial to improving the accuracy of the detection.

[0031] 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. The fixed cover 24 and the fixed seat 22 are provided with air escape grooves 30 connected to the air inlet 29 at both ends. The design of the air escape groove 30 can make the air inlet 29 of the detection body 23 communicate with the air in the smoke collecting plate assembly 4. Preferably, the material of the connecting pipe 25 is a retractable hose, so that when the smoke collecting plate assembly 4 is driven by the first propulsion mechanism 5, there is no possibility that the connecting pipe 25 will be broken due to the inability to retract.

[0032] Please continue reading Fig.10 A smoke inlet port 31 is provided at the smoke inlet chamber assembly 3. The smoke inlet port 31 is provided at one end close to the front baffle plate 9. The smoke inlet chamber assembly 3 is in a drawer structure as a whole, one end of which is partially extended during operation, and the bellows assembly 2 sucks the oil smoke at the other end, so that the extended end has a certain adsorption force to adsorb the oil smoke.

[0033] Please continue reading Figure 11-13, one 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, the second propulsion mechanism 6 pushes out and pulls back the smoke inlet chamber assembly 3 relative to the back plate 11 when working. Specifically, a strip hole 32 is provided on the back plate 11, and 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 side of the strip hole 32 at one end of the back plate 11 away from the side plate 10. The second propulsion cylinder 34 is located in the strip hole 32, and one end is connected to the fixed concave plate structure 33, and the other end is connected to the smoke inlet chamber assembly 3. The setting of the fixed concave plate structure 33 is different from that of a standard plate member. It can be connected to the back plate 11 on all sides, and the degree of fixation is better, which realizes the fixation of the second propulsion cylinder 34 and the linkage between the smoke inlet chamber assembly 3 and the smoke collecting plate assembly 4.

[0034] Please continue reading Figure 3 A first connecting outer guide rail 35 is arranged on the bellows assembly 2, and a first connecting inner guide rail 36 matching the first connecting outer guide rail 35 is arranged on the smoke collecting plate assembly 4. The first connecting outer guide rail 35 is arranged in the vertical direction, and the first connecting outer guide rail 35 is sleeved on the outside of the first connecting inner guide rail 36, and the first connecting outer guide rail 35 and the first propulsion mechanism 5 jointly constrain the movement direction to avoid deviation and direct collision of structures; a second connecting inner guide rail 38 is arranged on the side of the smoke inlet chamber assembly 3 close to the back plate 11, and a second connecting outer guide rail 37 matching the second connecting inner guide rail 38 is arranged on the side of the back plate 11 close to the smoke inlet chamber assembly 3, and the second connecting outer guide rail 37 is arranged in the vertical direction, and the second connecting outer guide rail 37 is sleeved on the outside of the second connecting inner guide rail 38, and the second propulsion mechanism 6 jointly constrains the movement direction to avoid deviation and direct collision of structures. Please refer to Figure 6 and Fig.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, and the third connecting outer guide rail 45 is provided in the vertical direction. The third connecting outer guide rail 45 is sleeved on the outer side of the third connecting inner guide rail 46, which increases the structural stability of the smoke inlet chamber assembly 3 during the up and down movement, constrains the movement direction of the smoke inlet chamber assembly 3, and avoids the possibility of structural loosening caused by displacement in other directions.

[0035] In the present invention, an oil leakage hole (not shown) is provided on the bellows assembly 2, and the oil leakage hole is located directly above the first oil box 13. The oil leakage hole leaks the oil in the bellows assembly 2 and drips into the first oil box 13; a guide pipe is also provided at 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 is beneficial to reduce the pollution caused by the oil dripping outside and the splashing of droplets.

[0036] See also Figure 14-15 The bellows assembly 2 includes an air duct system 40 and a cover structure 41, the air 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 panels 42 and a bellows top panel 43, the two ends of the bellows top panel 43 are respectively connected to the bellows panels 42 and form a "door" shape, one end of the whole composed of the bellows top panel 43 and the bellows panels 42 is connected to the air duct system 40, and the bellows assembly 2 also includes two reinforced fixed side panels 44, the two reinforced fixed side panels 44 are in a right-angled triangular prism structure and the surfaces where the two right-angled sides are located are respectively fixedly connected to the bellows top panel 43 and the bellows panels 42. By connecting and setting a reinforced fixed side panel 44 with a right-angled triangular prism structure at the bellows enclosure 42 and the bellows top plate 43, the stability of the structure is enhanced, and the airflow is contracted and gathered when entering the air duct system 40, thereby reducing the turbulence of the airflow and further reducing the possibility of large wind resistance and high noise, which is beneficial to improving the overall performance of the fan.

[0037] Compared with the prior art, the technical effects achieved by the embodiments of the present invention include: By providing a first propulsion mechanism, the overall position of the smoke collecting plate can be adjusted and can be closer to the smoke source, thereby improving the smoke collecting effect. By providing a second propulsion mechanism, the smoke inlet chamber assembly can be further closer to the smoke source, so that the generated oil fume can be adsorbed more quickly, thereby improving the adsorption efficiency and reducing the risk of oil fume escape.

[0038] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0039] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0040] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0041] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be connected, detachably connected, or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0042] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0043] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms should not be understood as necessarily being directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification.

[0044] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

[0045] The above is a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in the present application, and these modifications or replacements should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A lifting range hood, characterized in that: It includes a bellows assembly, a smoke inlet chamber assembly, a smoke collecting plate assembly, a first propulsion mechanism and a second propulsion mechanism, wherein one end of the first propulsion mechanism is connected to the bellows assembly, and the other end is connected to the smoke collecting plate assembly, one end of the second propulsion mechanism is connected to the smoke collecting plate assembly, and the other end is connected to the smoke inlet chamber assembly, and the second propulsion mechanism drives the smoke inlet chamber assembly to move in a direction away from the bellows assembly or in a direction close to the bellows assembly when working, and the first propulsion mechanism drives the smoke inlet chamber assembly, the smoke collecting plate assembly and the second propulsion mechanism to move in a direction away from the bellows assembly or in a direction close to the bellows assembly when working.

2. The lifting type range hood according to claim 1, characterized in that: One end of the smoke collecting plate assembly is provided with a first opening, the shape and size of the first opening match one end of the smoke inlet chamber assembly, and the smoke inlet chamber assembly is partially arranged in the smoke collecting plate assembly and partially exposed at the first opening.

3. The lifting type range hood according to claim 1, characterized in that: The lifting type range hood also includes a shell, the bellows assembly is partially arranged in the shell and partially extends out of the shell, and the smoke collecting plate assembly is partially arranged in the shell and partially exposed on the surface of the shell.

4. The lifting type range hood according to claim 3, characterized in that: A second opening is provided at one end of the shell away from the bellows assembly, and the shape and size of the second opening match the partial shape and size of the smoke collecting plate assembly. The smoke collecting plate assembly is partially arranged in the shell and partially exposed at the second opening.

5. The lifting type range hood according to claim 1, characterized in that: A smoke inlet is arranged at the smoke inlet chamber assembly, and the smoke inlet is arranged at one end close to the smoke collecting plate assembly.

6. The lifting type range hood according to claim 1, characterized in that: The smoke collecting plate assembly includes a front baffle plate, a side plate and a back plate, the front baffle plate and the side plate are arranged at one end of the smoke inlet chamber assembly, and the back plate is arranged at the other end of the smoke inlet chamber assembly, the front baffle plate, the side plate and the back plate are fixedly connected to each other, one end of the front baffle plate is connected to one end of the side plate at an angle of 90°, and the side plate is arranged parallel to the back plate.

7. The lifting type range hood according to claim 6, characterized in that: A strip hole is provided on the back plate, and the second propulsion mechanism includes a fixed concave plate structure and a second propulsion cylinder. The fixed concave plate structure is fixedly connected to the side of the strip hole at one end of the back plate away from the side plate. The second propulsion cylinder is located in the strip hole, and one end is connected to the fixed concave plate structure, and the other end is connected to the smoke inlet chamber assembly. When working, the second propulsion cylinder pushes the smoke inlet chamber assembly to move in a direction away from the bellows assembly or in a direction close to the bellows assembly.

8. The lifting type range hood according to claim 1, characterized in that: A first connecting outer guide rail is arranged on the wind box assembly, and a first connecting inner guide rail matching the first connecting outer guide rail is arranged on the smoke collecting plate assembly, and the first connecting outer guide rail is arranged in a vertical direction.

9. The lifting type range hood according to claim 7, characterized in that: A second connecting outer guide rail is arranged on one side of the smoke inlet chamber assembly close to the back plate, and a second connecting inner guide rail matching the second connecting outer guide rail is arranged on one side of the back plate close to the smoke inlet chamber assembly, and the second connecting outer guide rail is arranged in a vertical direction.

10. The lifting type range hood according to claim 1, characterized in that: A third connecting outer guide rail is arranged on the wind box assembly, and a third connecting inner guide rail matching the third connecting outer guide rail is arranged on the outer side of the smoke inlet chamber assembly, and the third connecting outer guide rail is arranged in a vertical direction.

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