Lift head assembly and extractor hood

Abstract

The present application relates to the technical field of kitchen appliances, and provides a lifting head assembly and a range hood. The lifting head assembly comprises a fixed assembly and a lifting assembly. The fixed assembly is connected with a first oil receiving part. The lifting assembly is adapted to lifting movement relative to the fixed assembly. A first gap is formed between the lifting assembly and the first oil receiving part. The lifting assembly is connected with a second oil receiving part located above the first oil receiving part. A second gap is formed between the second oil receiving part and the fixed assembly. The horizontal projections of the first gap and the second gap are staggered. The lifting head assembly can avoid contact and friction between the fixed assembly and the lifting assembly by cooperation of the first oil receiving part and the second oil receiving part. The lifting head assembly can also effectively receive oil drops dripping between the fixed assembly and the lifting assembly, so that the outer wall surface of the lifting assembly remains clean and the oil path problem between the fixed assembly and the lifting assembly is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of kitchen appliances, in particular to a lifting head assembly and a range hood. BACKGROUND

[0002] The range hood is a kind of kitchen appliance for purifying the kitchen environment. The range hood is installed above the stove and is used to suck the cooking oil fume and water vapor and other combustion exhaust gas to discharge the exhaust gas outside, reduce indoor pollution, purify the air, and have the safety guarantee function of preventing poisoning and explosion. The range hood has become an indispensable kitchen equipment in modern families.

[0003] The range hood is gradually popularized, and the style of the range hood is gradually increasing, forming various models such as European style, near suction, and wall suction. Among them, the European style, near suction, and wall suction range hoods all have their own limitations. For example, the air inlet of the European style range hood is far away from the cooking utensils, and a large amount of oil fume will condense on the wall surface; the side suction type range hood will block the user's view, and when a steamer with a high use height is used, the steamer will collide with the range hood; the wall suction type range hood has good smoke suction effect when a frying pan with a low use height is used, but it cannot suck smoke when a steamer with a high use height is used.

[0004] In view of the above problems, a new type of lifting range hood is designed to meet the diversity of kitchen scenes and gradually gain the favor of consumers. The lifting range hood can be adjusted by lifting to solve the problem of collision with the range hood when using the cooking utensils. During use, the height of the lower air inlet of the range hood can be adjusted according to the height of the cooking utensils used by the user, and the lower air inlet can suck part of the smoke, and the top air inlet can also suck part of the smoke, which can meet the smoke exhaust demand.

[0005] However, the oil path problem of the lifting range hood has not been effectively solved. For example, the oil stains in the rear fixed part are difficult to collect effectively, and a certain assembly gap needs to be left between the fixed part and the lifting part, so that part of the oil stains inside can flow out through the gap, resulting in more oil marks on the appearance surface. SUMMARY

[0006] The present application aims to at least solve one of the technical problems in the related art. To this end, the present application provides a lifting head assembly, which can avoid contact and friction between the fixed assembly and the lifting assembly by cooperation of the first oil receiving part and the second oil receiving part, and can effectively receive the oil droplets dripping between the fixed assembly and the lifting assembly, so as to keep the outer wall surface of the lifting assembly clean and solve the oil path problem between the lifting assembly and the fixed assembly.

[0007] The present application also provides a range hood.

[0008] The lifting head assembly according to the first aspect of the present application comprises:

[0009] The fixed assembly is connected with a first oil receiving part;

[0010] The lifting assembly is adapted to lifting movement relative to the fixed assembly, a first gap is configured between the lifting assembly and the first oil receiving part, the lifting assembly is connected with a second oil receiving part above the first oil receiving part, a second gap is configured between the second oil receiving part and the fixed assembly, the horizontal projection of the first gap and the second gap are staggered.

[0011] The lifting head assembly according to the embodiment of the present application comprises a fixed assembly and a lifting assembly, the lifting assembly is connected with a second oil receiving part, the second oil receiving part is used for receiving oil stains falling thereon, a second gap is configured between the edge of the second oil receiving part and the inner wall of the fixed assembly, so that the second oil receiving part is prevented from contacting the inner wall of the fixed assembly, and further, friction between the second oil receiving part and the fixed assembly is avoided; the fixed assembly is connected with a first oil receiving part, the first oil receiving part can be used for receiving oil stains falling from the side wall of the fixed assembly and oil stains falling from the second oil receiving part, a first gap is configured between the edge of the first oil receiving part and the outer wall of the lifting assembly, so that the first oil receiving part is prevented from contacting the outer wall of the lifting assembly, and further, friction between the first oil receiving part and the lifting assembly is avoided, and the stable lifting of the lifting assembly is ensured. The first gap and the second gap staggered in the height direction can effectively receive oil drops falling between the fixed assembly and the lifting assembly through cooperation of the first oil receiving part and the second oil receiving part, ensure the cleanliness of the outer wall of the lifting assembly, and solve the oil path problem between the lifting assembly and the fixed assembly.

[0012] According to one embodiment of the present application, the second oil receiving part comprises a first oil guide part, the first oil guide part comprises a first connecting part and an inclined part, the first connecting part is connected to the lifting assembly, and the inclined part extends downwardly and obliquely away from the lifting assembly along the end of the first connecting part.

[0013] According to one embodiment of the present application, the fixed assembly is provided with a first guide part, the lifting assembly is provided with a second guide part matched with the first guide part, and the first guide part and the second guide part are adapted to relative movement along the lifting direction of the lifting assembly.

[0014] According to one embodiment of the present application, the second oil receiving part is located above the second guide part.

[0015] According to one embodiment of the present application, the second oil receiving part comprises a second oil guide part, the second oil guide part is located on the side of the second guide part, the second oil guide part comprises a second connecting part and a blocking part connected to the second connecting part, the second connecting part is connected to the lifting assembly, and the second connecting part and the blocking part configure a groove with an upper opening.

[0016] According to one embodiment of the present application, the length of the second oil guiding part is greater than the width of the second guiding part, and at least one end of the length direction of the groove has an opening.

[0017] According to one embodiment of the present application, the second oil guiding part is an integral structure formed by bending.

[0018] According to one embodiment of the present application, the second oil guiding part includes a first oil guiding part, which forms a closed loop structure in connection with the second oil guiding part; the first oil guiding part includes a first connecting part and an inclined part connected to the first connecting part, the first connecting part is connected to the lifting assembly, and the inclined part extends downwardly away from the first connecting part.

[0019] According to one embodiment of the present application, the first oil guiding part is configured as a groove around the inner wall of the fixed assembly.

[0020] According to one embodiment of the present application, the first oil guiding part is configured with a first outlet communicating with the first oil cup, and the first oil guiding part is inclined upwardly away from the first outlet.

[0021] According to one embodiment of the present application, the first outlet is connected with a first oil nozzle, and the first oil nozzle extends out of the fixed assembly.

[0022] According to one embodiment of the present application, the front side of the lifting assembly is configured with an air inlet, the lifting assembly is configured with a first cavity, and the bottom of the lifting assembly is connected with a second oil cup communicating with the first cavity.

[0023] According to one embodiment of the present application, the range hood includes a frame assembly and the lifting head assembly as described above, and the fixed assembly is connected to the frame assembly.

[0024] According to one embodiment of the present application, the range hood further includes a flow guide assembly, the flow guide assembly is installed on the front side of the fixed assembly, the flow guide assembly is located below the frame assembly, the flow guide assembly includes a first oil cup, and the first oil guiding part communicates with the first oil cup.

[0025] According to one embodiment of the present application, the flow guide assembly includes a first flow guide member with a first through hole, the first oil cup is connected below the first flow guide member, in the case that the first oil guiding part is connected with a first oil nozzle, the first oil nozzle is connected above the first flow guide member, the first oil nozzle is provided with a second through hole, and the second through hole communicates with the first oil cup through the first through hole.

[0026] The one or more technical solutions in the embodiments of the present application have at least one of the following technical effects.

[0027] The lifter head assembly of the embodiment of the present application comprises a fixed assembly and a lifting assembly, the lifting assembly is connected with a second oil receiving part, the second oil receiving part is used for receiving oil stains dripping thereon, a second gap is arranged between the edge of the second oil receiving part and the inner wall of the fixed assembly, so that the second oil receiving part is prevented from contacting the inner wall of the fixed assembly, and further, friction between the second oil receiving part and the fixed assembly is avoided; the fixed assembly is connected with a first oil receiving part, the first oil receiving part can be used for receiving oil stains dripping from the side wall of the fixed assembly and oil stains dripping from the second oil receiving part, a first gap is arranged between the edge of the first oil receiving part and the outer wall of the lifting assembly, so that the first oil receiving part is prevented from contacting the outer wall of the lifting assembly, and further, friction between the first oil receiving part and the lifting assembly is avoided, and the stable lifting of the lifting assembly can be ensured. The first gap and the second gap are formed in the height direction and are mutually staggered, the first oil receiving part and the second oil receiving part are matched, oil drops dripping between the fixed assembly and the lifting assembly can be effectively received, the cleanliness of the outer wall surface of the lifting assembly is ensured, and the oil path problem between the lifting assembly and the fixed assembly is solved.

[0028] Further, the range hood of the embodiment of the present application comprises the above-mentioned lifter head assembly, the oil path problem of the lifting adjustment part of the range hood is solved, the overall structure of the range hood is optimized, oil stains can be conveniently collected, and the external surface of the range hood can be kept clean.

[0029] Additional aspects and advantages of the present application will be made apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application or in the related art, the following will briefly introduce the drawings needed to be used in the embodiments or the related art description. Obviously, the drawings in the following description only show some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0031] Figure 1 is a structural schematic view of the lifter head assembly provided by the embodiment of the present application, wherein the first frame and the first surrounding plate of the fixed assembly are in a disassembled state, and the second frame below the lifting assembly and the second oil cup below the second frame are in a disassembled state;

[0032] Figure 2 is a structural schematic view of the lifter head assembly provided by the embodiment of the present application, and Figure 1 further disassembles the first oil receiving part and the second oil receiving part on the basis of

[0033] Figure 3 is a longitudinal sectional structure schematic view of the elevator head assembly provided by the embodiment of the present application;

[0034] Figure 4 is Figure 3 is a local enlarged structure schematic view of site A in

[0035] Figure 5 is a three-dimensional structure schematic view of the elevator head assembly provided by the embodiment of the present application, in which the first surrounding plate of the fixing assembly is not shown;

[0036] Figure 6 is Figure 5 is a local enlarged structure schematic view of site B in

[0037] Figure 7 is a front structure schematic view of the elevator head assembly provided by the embodiment of the present application, in which the first surrounding plate of the fixing assembly is not shown;

[0038] Figure 8 is Figure 7 is a local enlarged structure schematic view of site C in

[0039] Figure 9 is a three-dimensional structure schematic view of the second oil receiving part of the elevator head assembly provided by the embodiment of the present application;

[0040] Figure 10 is a three-dimensional structure schematic view of the first oil receiving part of the elevator head assembly provided by the embodiment of the present application;

[0041] Figure 11 is a three-dimensional structure schematic view of the extractor hood provided by the embodiment of the present application, in which the lifting assembly is in the extended state;

[0042] Figure 12 is a three-dimensional structure schematic view of the extractor hood provided by the embodiment of the present application, in which the lifting assembly is in the retracted state;

[0043] Figure 13 is a front structure schematic view of the extractor hood provided by the embodiment of the present application, in which the lifting assembly is in the extended state;

[0044] Figure 14 is a side structure schematic view of the extractor hood provided by the embodiment of the present application, in which the lifting assembly is in the retracted state;

[0045] Figure 15 is a side structure schematic view of the extractor hood provided by the embodiment of the present application, in which the lifting assembly is in the extended state;

[0046] Figure 16is a structural schematic view of a range hood provided by an embodiment of the present application, in which a rack assembly and a flow guide assembly are in an installed state, and a lifting head assembly is in an uninstalled state;

[0047] Figure 17 is a structural schematic view of a range hood provided by an embodiment of the present application, in which a rack assembly and a flow guide assembly are in an installed state, and a lifting head assembly is in an uninstalled state;

[0048] Figure 18 is a structural schematic view of a range hood provided by an embodiment of the present application, in which a rack assembly and a flow guide assembly are in an installed state, and a lifting head assembly is in an uninstalled state;

[0049] Figure 19 is a structural schematic view of a range hood provided by an embodiment of the present application, in which a rack assembly and a flow guide assembly are in an installed state, and a lifting head assembly is in an uninstalled state;

[0050] Figure 20 is Figure 19 is a partial enlarged structural schematic view of a D portion in FIG. 1;

[0051] Figure 21 is a structural schematic view of a range hood provided by an embodiment of the present application, in which a rack assembly and a flow guide assembly are in an installed state, and a lifting head assembly is in an uninstalled state;

[0052] In the above-mentioned figures, arrows indicate a flow path of condensed oil droplets.

[0053] Reference signs:

[0054] 100: lifting head assembly; 110: fixed assembly; 111: first guide portion; 112: first frame; 113: first baffle; 1131: air outlet; 1132: second cavity; 120: lifting assembly; 121: second guide portion; 122: second frame; 123: second baffle; 1231: first front wall plate; 1232: first rear wall plate; 1233: air inlet; 1234: first cavity; 1235: second oil cup; 130: first oil receiving portion; 131: first outlet; 132: groove; 133: first oil nozzle; 1331: second through hole; 140: second oil receiving portion; 141: first oil guide portion; 1411: first connecting portion; 1412: inclined portion; 142: second oil guide portion; 1421: second connecting portion; 1422: blocking portion; 1423: groove; 150: first gap; 160: second gap; 180: driving assembly; 181: driving member; 182: moving member; 183: fixed member; 184: protection member; 185: connecting plate; 190: oil-proof structure; 191: first oil-proof plate; 192: third oil-proof plate;

[0055] 200: flow guide assembly; 210: first flow guide; 211: flow guide part; 2111: mounting opening; 212: oil collecting part; 213: first through hole; 214: smoke collecting part; 220: frame; 230: first oil cup; 240: second flow guide; 241: second opening; 242: front wall surface; 243: rear wall surface; 250: second oil nozzle; 251: first protruding part; 252: second protruding part; 253: third through hole; 254: fourth through hole; 260: panel; 270: cover plate; 280: oil mesh;

[0056] 300: rack assembly; 310: decorative piece; 320: third cavity;

[0057] 400: fan assembly. DETAILED DESCRIPTION

[0058] The embodiments of the present application will be further described below in conjunction with the drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.

[0059] In the description of the embodiments of the present application, it should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. In addition, in the description of the present application, unless otherwise specified and limited, the terms "a plurality of", "a plurality of", "a plurality of" mean two or more.

[0060] In the description of the embodiments of the present application, it should be noted that, unless otherwise specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0061] In the embodiments of the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature can be "above", "over" and "on" the second feature, which can be that the first feature is directly above or obliquely above the second feature, or only means that the first feature is higher in horizontal height than the second feature. The first feature can be "under", "below" and "under" the second feature, which can be that the first feature is directly below or obliquely below the second feature, or only means that the first feature is lower in horizontal height than the second feature.

[0062] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in any one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0063] Embodiments of the first aspect of the present application, in combination with Figures 1 to 10 As shown, a lifter head assembly 100 is provided, comprising: a fixed assembly 110 and a lifting assembly 120, the fixed assembly 110 is connected with a first oil receiving part 130; the lifting assembly 120 is adapted to lifting movement relative to the fixed assembly 110, a first gap 150 is provided between the lifting assembly 120 and the first oil receiving part 130, the lifting assembly 120 is connected with a second oil receiving part 140 located above the first oil receiving part 130, a second gap 160 is provided between the second oil receiving part 140 and the fixed assembly 110, the horizontal projection of the first gap 150 and the second gap 160 are staggered with each other.

[0064] The lifting assembly 120 can move up and down relative to the fixed assembly 110, in order to ensure that the lifting assembly 120 can move stably, and there is no frictional resistance between the lifting assembly 120 and the fixed assembly 110, a gap is provided between the lifting assembly 120 and the fixed assembly 110, but the oil condensation in the fixed assembly 110 will also fall from the gap, which will cause oil dripping problem, and the oil dirt will also adhere to the outer wall surface of the lifting assembly 120, which will affect the surface cleaning of the lifting assembly 120.

[0065] In this embodiment, the lifting assembly 120 is connected to the second oil receiving portion 140, which is used to receive the oil stains falling thereon. A second gap 160 is provided between the edge of the second oil receiving portion 140 and the inner wall of the fixed assembly 110, which can avoid the contact between the second oil receiving portion 140 and the inner wall of the fixed assembly 110, thereby avoiding the friction between the second oil receiving portion 140 and the fixed assembly 110. The fixed assembly 110 is connected to the first oil receiving portion 130, which can be used to receive the oil stains falling from the side wall of the fixed assembly 110 and the oil stains falling from the second oil receiving portion 140. A first gap 150 is provided between the edge of the first oil receiving portion 130 and the outer wall of the lifting assembly 120, which can avoid the contact between the first oil receiving portion 130 and the outer wall of the lifting assembly 120, thereby avoiding the friction between the first oil receiving portion 130 and the lifting assembly 120, and ensuring the stable lifting of the lifting assembly 120.

[0066] The horizontal projection of the first gap 150 and the second gap 160 is staggered, that is, the horizontal projection of the first gap 150 and the second gap 160 has no intersection area, which can ensure that the first oil receiving portion 130 can receive the oil stains falling from the second oil receiving portion 140, and avoid the oil stains flowing out from the first gap 150. In addition, the first oil receiving portion 130 also receives the oil stains falling from the second gap 160 and the inner wall of the fixed assembly 110. That is, the horizontal projection of the first oil receiving portion 130 and the second oil receiving portion 140 has an intersection area, and this intersection area forms an annular area between the fixed assembly 110 and the lifting assembly 120. The annular area can be a circular annular area, a rectangular annular area or other irregular annular areas, and the specific shape of the annular area can be adjusted according to actual needs, which is not limited here.

[0067] In this embodiment, the first oil receiving portion 130 and the second oil receiving portion 140 cooperate to form the first gap 150 and the second gap 160 staggered in the height direction, which can avoid the contact and friction between the fixed assembly 110 and the lifting assembly 120, and effectively receive the oil stains falling between the fixed assembly 110 and the lifting assembly 120, thereby ensuring the cleanliness of the outer wall of the lifting assembly 120 and solving the oil path problem between the lifting assembly 120 and the fixed assembly 110. In addition, the cooperation of the first oil receiving portion 130 and the second oil receiving portion 140 forms a staggered communication structure between the fixed assembly 110 and the lifting assembly 120, which can prevent the flue gas from entering the second cavity 1132 in the fixed assembly 110 through the gap between the fixed assembly 110 and the lifting assembly 120, thereby preventing the oil stains from contacting the wall between the fixed assembly 110 and the lifting assembly 120, and alleviating the problem of the oil stains adhering to the outer wall of the lifting assembly 120. The outer wall of the lifting assembly 120 is the appearance surface of the range hood, and the problem of the oil stains flowing to the appearance surface is solved in this embodiment.

[0068] It should be noted that the fixed assembly 110 is generally fixedly installed on a structure such as a wall or a cabinet, but the fixed assembly 110 is not necessarily fixed, and the fixed assembly 110 can also be moved and adjusted, but the lifting assembly 120 can be lifted relative to the fixed assembly 110.

[0069] It can be understood that, as shown in Figures 4 to 6 and Figure 9 , the second oil receiving part 140 includes a first oil guiding part 141, the first oil guiding part 141 includes a first connecting part 1411 and an inclined part 1412, the first connecting part 1411 is connected to the lifting assembly 120, and the inclined part 1412 extends downwardly along the end of the first connecting part 1411 away from the lifting assembly 120. The oil stains are guided downwardly through the inclined part 1412, so that the oil stains are dropped onto the first oil receiving part 130 and then concentrated and discharged. The oil stain discharge mode of the second oil receiving part 140 is simple and effective.

[0070] The first connecting part 1411 can be connected to the second frame 122 of the lifting assembly 120 by welding, clamping, magnetic attraction, or fastener connection, and the like. The connection mode of the first connecting part 1411 is various, and can be selected according to actual needs.

[0071] As shown in Figure 9 , the first connecting part 1411 and the inclined part 1412 are integrally formed, and the first oil guiding part 141 is bent to form the first connecting part 1411 and the inclined part 1412. The integrated structure can avoid oil leakage between the first connecting part 1411 and the inclined part 1412, and ensure that the oil stains received by the second oil receiving part 140 accurately fall on the first oil receiving part 130 along the inclined part 1412. Of course, the first connecting part 1411 and the inclined part 1412 can also be independent components (not shown in the figure), and the first connecting part 1411 and the inclined part 1412 can be connected together by welding, clamping, magnetic attraction, or fastener connection, and the like.

[0072] It can be understood that, as shown in Figure 1 , Figure 2 , Figure 5 and Figure 6 , the fixed assembly 110 is provided with a first guide part 111, the lifting assembly 120 is provided with a second guide part 121 matched with the first guide part 111, and the first guide part 111 and the second guide part 121 are adapted to move relative to each other along the lifting direction of the lifting assembly 120. The first guide part 111 and the second guide part 121 cooperate to guide the lifting movement of the lifting assembly 120, so as to improve the stability of the lifting movement of the lifting assembly 120.

[0073] First guide portions 111 are disposed on two opposite side walls of the fixed assembly 110, and correspondingly, second guide portions 121 are disposed on two opposite side walls of the lifting assembly 120. Multiple sets of first guide portions 111 and second guide portions 121 are arranged opposite each other, resulting in better guiding effect and contributing to improved motion stability of the lifting assembly 120. (Reference) Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, the first guide parts 111 are disposed on the left and right sides of the fixed assembly 110. The two first guide parts 111 provide guidance and support on the left and right sides of the lifting assembly 120, thereby improving the stability of the lifting assembly 120. Of course, the first guide parts are not limited to being located on the left and right sides; the first guide parts can also be disposed on the front and rear sides, depending on the specific needs.

[0074] The first guide portion 111 can be at least one of a guide rail and a guide block, and the second guide portion 121 can be at least one of a guide block and a guide rail that are compatible with the first guide portion 111; the specific selection can be made according to actual needs. (Reference) Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, the first guide part 111 is a guide rail that extends along the height direction of the fixed component 110. The second guide part 121 is a guide block that is connected to the upper outer side of the lifting component 120. When the lifting component 120 is lowered to the lowest position, the second guide part 121 can be hidden inside the fixed component 110 to make the appearance of the lifting component 120 simple and beautiful.

[0075] Understandably, reference Figure 1 and Figure 2 As shown, the lifting head assembly 100 also includes a drive assembly 180, which drives the lifting assembly 120 to move up and down relative to the fixed assembly 110, so that the user can control the lifting assembly 120 to adjust its height. The drive assembly 180 is connected to the middle part of the top plate of the fixed assembly 110 and also to the middle part of the second frame 122 of the lifting assembly 120 to ensure that the lifting assembly 120 is subjected to balanced force.

[0076] Understandably, reference Figure 5 and Figure 6 As shown, the second oil receiving part 140 is located above the second guide part 121 so that the second oil receiving part 140 can receive the oil stains above the second guide part 121 and prevent the oil stains from dripping onto the second guide part 121, thereby increasing the resistance of the relative movement between the second guide part 121 and the first guide part 111.

[0077] Understandably, reference Figures 5 to 9As shown, the second oil receiving portion 140 comprises a second oil guiding portion 142 located on the side of the second guide portion 121, the second oil guiding portion 142 comprises a second connecting portion 1421 connected to the lifting assembly 120 and a blocking portion 1422 connected to the second connecting portion 1421, and the second connecting portion 1421 and the blocking portion 1422 are configured to form a groove 1423 having an oil receiving port at the top.

[0078] The second oil guiding portion 142 is used to receive the oil stains above the second guide portion 121, the oil stains fall into the groove 1423 through the oil receiving port, and the oil stains are guided into the first oil receiving portion 130 through the second oil guiding portion 142, so as to avoid the oil stains falling between the second guide portion 121 and the first guide portion 111, and also avoid the oil stains dripping to the outside of the lifting assembly 120 through the second guide portion 121.

[0079] In the drawings, Figure 9 As shown, the groove 1423 of the second oil guiding portion 142 can be provided with an overflow port at both ends, and the oil stains fall into the first oil receiving portion 130 through the overflow ports at both ends, or the surface of the second connecting portion or the blocking portion is provided with an oil guiding port (not shown in the drawings), the oil guiding port avoids the second guide portion, that is, the projection of the oil guiding port in the horizontal direction does not intersect with the projection of the second guide portion, so as to ensure that the oil stains will not drip on the second guide portion.

[0080] In the drawings, Figures 7 to 9 As shown, the longitudinal cross-sectional shape of the groove 1423 is triangular. The second connecting portion 1421 can be connected to the second frame 122 of the lifting assembly 120 by welding, clamping, magnetic attraction or fastener connection, and the connection mode of the first connecting portion 1411 is various, which can be selected according to actual needs.

[0081] It can be understood that, Figure 9 As shown, the second oil guiding portion 142 is an integral structure formed by bending, that is, the second connecting portion 1421 and the blocking portion 1422 are integrally formed, and the second oil guiding portion 142 is formed by bending to form the second connecting portion 1421 and the blocking portion 1422. The integral structure can avoid oil leakage between the second connecting portion 1421 and the blocking portion 1422, and ensure that the oil stains received by the second oil receiving portion 140 accurately fall on the first oil receiving portion 130 through the overflow ports at both ends of the groove 1423. Of course, the second connecting portion and the blocking portion can also be independent components (not shown in the drawings), and the second connecting portion and the blocking portion can be connected together by welding, clamping, magnetic attraction or fastener connection.

[0082] It can be understood that the length of the second oil guiding part 142 is greater than the width of the second guiding part 121, at least one end of the length direction of the groove 1423 has an overflow port, and the oil stains received in the groove 1423 can flow out through the overflow port of the end, the oil stains flowing out of the groove 1423 fall into the first oil receiving part 130, and the structure of the second oil guiding part 142 is simple and convenient to process.

[0083] The length of the second oil guiding part 142 is greater than the width of the second guiding part 121, so as to avoid the oil stains flowing out of the end to adhere to the surface of the second guiding part 121. Here, the length of the second oil guiding part 142 and the width of the second guiding part 121 both refer to the size in the front-rear direction.

[0084] Reference Figures 5 to 9 As shown in the figure, when the first guiding part 111 and the second guiding part 121 are located on the left and right sides, the second oil guiding part 142 is located on the left and right sides of the lifting assembly 120, both ends of the length direction of the second oil guiding part 142 have overflow ports, and both ends of the length direction of the second oil guiding part 142 form a second gap 160 with the inner wall of the fixed assembly 110, so as to ensure that the oil droplets dripping from the second oil guiding part 142 can fall into the first oil receiving part 130, and to ensure that the lifting assembly 120 can stably lift.

[0085] Among them, the structure of the second oil guiding part can also be that one end of the length direction of the second oil guiding part has an overflow port, and the other end is closed (not shown in the figure), at this time, the second oil guiding part can be inclined downward from the closed end to the overflow port end, providing power for the flow of oil droplets.

[0086] Combined Figures 5 to 9 As shown in the figure, the first oil guiding part 141 and the second oil guiding part 142 are connected to form a closed loop structure surrounding the outer side wall of the lifting assembly 120, so as to ensure that the second oil receiving part 140 can fully receive the oil stains dripping from above. The first oil guiding part 141 is arranged on the front and rear sides of the lifting assembly 120, and the second oil guiding part 142 is arranged on the left and right sides of the lifting assembly 120.

[0087] It should be noted that the structure of the second oil receiving part 140 is not limited to the structure in the above embodiment, and other structures capable of receiving oil stains dripping from the space above can also be used, such as referring to the structure of the first oil receiving part 130 in the following embodiment, limiting the oil guiding groove (not shown in the figure), and guiding the oil stains to the first oil receiving part 130 through the opening arranged in the oil guiding groove, or the second oil receiving part 140 only includes the first oil guiding part 141, or the second oil receiving part 140 only includes the second oil guiding part 142. The specific structure of the second oil receiving part 140 can be set according to actual needs.

[0088] It can be understood that combined Figures 1 to 6 And Figure 10As shown, the first oil receiving portion 130 is configured with a groove 132 surrounding the inner wall of the fixed assembly 110, which is used to receive the oil stains dropped by the second oil receiving portion 140, and also used to receive the oil stains dropped by the inner wall of the fixed assembly 110, and also used to receive the oil stains dropped by the second gap 160. The groove 132 surrounding the fixed assembly 110 avoids the appearance of a receiving dead angle in the circumference of the fixed assembly 110.

[0089] The shape of the longitudinal section of the groove 132 can be rectangular, triangular, trapezoidal or semicircular, which can be set according to actual needs.

[0090] It can be understood that, as shown in Figures 3 to 6 and Figure 10 As shown, the first oil receiving portion 130 is configured with a first outlet 131 adapted to communicate with the first oil cup 230. In the direction away from the first outlet 131 along the first outlet 131, the first oil receiving portion 130 is inclined upward, so that the oil stains in the first oil receiving portion 130 flow to the first outlet 131, and also avoid the accumulation of oil stains in the first oil receiving portion 130, which plays a certain cleaning role for the first oil receiving portion 130.

[0091] In some cases, the first outlet 131 communicates with the first oil cup 230 of the flow guide assembly 200 to guide the oil stains in the first oil receiving portion 130 into the first oil cup 230, which is convenient for users to centrally process the oil stains.

[0092] It can be understood that, as shown in Figures 3 to 6 and Figure 10 As shown, the first outlet 131 is connected with a first oil nozzle 133, which extends out of the fixed assembly 110. The oil stains in the first oil receiving portion 130 are guided out of the first oil cup 230 through the first oil nozzle 133, which is simple in structure and convenient to install.

[0093] It can be understood that, as shown in Figure 1 and Figure 2 As shown, the front side of the lifting assembly 120 is configured with an air inlet 1233, and the lifting assembly 120 is configured with a first cavity 1234. The bottom of the lifting assembly 120 is connected with a second oil cup 1235 communicating with the first cavity 1234. The oil fume enters the first cavity 1234 from the air inlet 1233, and then enters the second cavity 1132 of the fixed assembly 110. The fan assembly 400 sucks the oil fume in the second cavity 1132 out through the air outlet 1131. The oil stains dropped by the top plate of the fixed assembly 110 corresponding to the first cavity 1234 can directly fall into the second oil cup 1235, and the oil stains condensed by the inner wall of the second baffle 123 limiting the first cavity 1234 can also directly fall into the second oil cup 1235. The second oil cup 1235 located at the bottom of the lifting assembly 120 is also convenient to disassemble, so as to facilitate cleaning and replacement.

[0094] And, the oil fume is prevented from entering the second cavity 1132 through the cooperation of the first oil receiving part 130 and the second oil receiving part 140.

[0095] It can be understood that the lifting assembly 120 comprises a second frame 122 and a second enclosure 123, the second enclosure 123 is surrounded outside the second frame 122, the second enclosure 123 limits the first cavity 1234, the upper and lower ends of the second frame 122 are through structures, the second oil receiving part 140 is installed on the top of the second frame 122, the second oil receiving part 140 is always surrounded by the fixed assembly 110, which ensures the simplicity and beauty of the appearance structure of the lifting assembly 120. The second enclosure 123 comprises a first front wall plate 1231, a first rear wall plate 1232, a left wall plate and a right wall plate, the first front wall plate 1231 is provided with an air inlet 1233, and the bottom of the second frame 122 is connected with a second oil cup 1235. The first front wall plate 1231, the first rear wall plate 1232, the left wall plate and the right wall plate can be connected into the second enclosure 123 as independent plate pieces, or integrally bent to form the second enclosure 123.

[0096] The second frame 122 can be a frame structure connected by aluminum profiles. The aluminum profile is light in weight, which can reduce the load of the driving assembly 180 and help save energy consumption. The connecting parts of adjacent aluminum profiles are provided with fixed plates for reinforcement, so as to ensure the structural strength and stability of the second frame 122.

[0097] The fixed assembly 110 comprises a first frame 112 and a first enclosure 113, the first enclosure 113 surrounds the first frame 112, the first enclosure 113 limits the second cavity 1132, the upper end of the second cavity 1132 is closed through a top plate, the second cavity 1132 is through with the first cavity 1234, the front side of the first enclosure 113 is provided with an air outlet 1131, and the fan assembly 400 discharges the flue gas in the second cavity 1132 through the air outlet 1131.

[0098] The first frame 112 can be made of aluminum profiles or stainless steel profiles, so as to ensure the stability of the fixed assembly 110.

[0099] It can be understood that the lifter head assembly 100 further comprises a driving assembly 180 connected with the fixed assembly 110 and the lifting assembly 120, and the driving assembly 180 is used to drive the lifting assembly 120 to lift and adjust. The driving assembly 180 comprises a driving member 181 connected with the fixed assembly 110 and a moving member 182, the driving member 181 is power-coupled with the moving member 182 to drive the moving member 182 to move up and down, and the moving member 182 is connected with the lifting assembly 120. The lifter head assembly 100 further comprises an oil-proof structure 190 connected with the lifting assembly 120, the oil-proof structure 190 surrounds the moving member 182 to protect the moving member 182, so as to avoid oil stains from adhering to the surface of the moving member 182 and affecting the movement of the moving member 182.

[0100] It can be understood that the oil-proof structure 190 comprises a first oil-proof plate 191 and a second oil-proof plate, the lifting assembly 120 comprises a first front wall plate 1231 and a first rear wall plate 1232, the first front wall plate 1231 is configured with a first oil-proof part, the first rear wall plate 1232 is configured with a second oil-proof part, the first oil-proof part, the second oil-proof part, the first oil-proof plate 191 and the second oil-proof plate are connected to form a closed loop structure to surround the side wall of the moving member 182. The two oil-proof plates and the front and rear wall plates of the lifting assembly 120 cooperate to surround the moving member 182, and the second surrounding plate 123 of the lifting assembly 120 is fully utilized, and the structure is simple.

[0101] The first oil-proof plate 191 is opposite to the second oil-proof plate, and the upper part of the first oil-proof plate 191 and the second oil-proof plate is closed by a third oil-proof plate 192, so as to fully protect the moving member 182.

[0102] Of course, the oil-proof structure 190 can also be a closed loop structure, and at this time, it is not necessary to cooperate with the second surrounding plate 123.

[0103] The oil-proof structure 190 cooperates with the wall plate of the second surrounding plate 123 to form a closed loop, and the oil-proof structure 190 is a closed loop structure, which helps to reduce the weight of the lifting assembly 120.

[0104] It can be understood that the first front wall plate 1231 is configured with an air inlet 1233, and the air inlet 1233 is distributed on both sides of the first oil-proof part, so as to uniformly suck smoke by the lifting assembly 120. The smoke on the front side of the lifting assembly 120 enters the first cavity 1234 through the air inlet 1233, and then rises along the first cavity 1234 to the second cavity 1132, and the smoke in the second cavity 1132 is sucked out by the fan assembly 400 through the air outlet 1131.

[0105] It can be understood that the oil-proof structure 190 comprises a first oil-proof plate 191 and a second oil-proof plate, the lifting assembly 120 comprises a first front wall plate 1231 and a first rear wall plate 1232, the first front wall plate 1231 is configured with a first oil-proof part, the first rear wall plate 1232 is configured with a second oil-proof part, the first oil-proof part, the second oil-proof part, the first oil-proof plate 191 and the second oil-proof plate are connected to form a closed loop structure to surround the side wall of the moving member 182. The two oil-proof plates and the front and rear wall plates of the lifting assembly 120 cooperate to surround the moving member 182, and the second surrounding plate 123 of the lifting assembly 120 is fully utilized, and the structure is simple. Figure 1 and Figure 2As shown, the driving assembly 180 further comprises a fixed member 183 sleeved outside the moving member 182, the fixed member 183 is connected to the fixed assembly 110, and the moving member 182 moves up and down along the extension direction of the fixed member 183. When the lifting assembly 120 is lifted to the maximum height, that is, the lifting assembly 120 is retracted into the fixed assembly 110, the moving member 182 is retracted into the fixed member 183, the fixed member 183 surrounds the outside of the moving member 182, and the fixed member 183 plays a protective and oil-proof role on the moving member 182.

[0106] The fixed member 183 can be made of aluminum profile, which is lighter in weight and helps to reduce the weight of the range hood.

[0107] It can be understood that the driving assembly 180 further comprises a protective member 184 arranged outside the driving member 181, the fixed assembly 110 comprises a top plate, a second front wall plate and a second rear wall plate, and the protective member 184, the second front wall plate, the second rear wall plate and the top plate surround the driving member 181, so that the driving member 181 can be surrounded in a relatively closed space to avoid oil pollution of the driving member 181. The protective member 184 is a plate member covering both sides of the driving member 181, and the protective member 184 is fixedly connected to a connecting plate 185, the connecting plate 185 is installed on the first frame 112, and a top plate is arranged on the connecting plate 185 for convenient disassembly and assembly.

[0108] The driving member 181 can be a linear motor, which drives the moving member 182 to move up and down, and the motor has stable driving performance.

[0109] The second aspect of the embodiment of the present application is combined with Figures 1 to 21 As shown, the range hood further comprises a rack assembly 300 and the lifting head assembly 100 in one or more of the above embodiments, and the fixed assembly 110 is connected to the rack assembly 300. The lifting head assembly 100 has the beneficial effects of the above embodiments, so the range hood provided with the lifting head assembly 100 also has the beneficial effects described above. For details, please refer to the above description, which will not be repeated here.

[0110] The rack assembly 300 and the fixed assembly 110 can be detachably fixed, that is, the rack assembly 300 and the lifting head assembly 100 are independent components for convenient disassembly and assembly, so that the lifting head assembly 100 can be applied to rack assemblies 300 of various specifications to process range hoods of various structural forms. The rack assembly 300 is provided with a decorative member 310 to decorate the front side of the range hood.

[0111] In the above embodiments, reference is made to Figure 14 and Figure 15As shown, the side view contrast diagram of the lifting assembly 120 before and after lifting, wherein the maximum lifting stroke of the lifting assembly 120 is 500mm, wherein the lifting range of the lifting assembly 120 is 300-500mm when the range hood is working, which ensures that the air inlet 1233 is kept outside the fixed assembly 110.

[0112] It can be understood that the range hood further comprises a flow guide assembly 200, the flow guide assembly 200 is installed on the front side of the fixed assembly 110, the flow guide assembly 200 is located below the rack assembly 300, the front side of the fixed assembly 110 is configured with an air outlet 1131, and the air fan assembly 400 is installed in the rack assembly 300, and the air outlet 1131 is in communication with the inlet of the air fan assembly 400.

[0113] Under the suction action of the air fan assembly 400, part of the smoke generated during cooking enters the air inlet 1233 of the lifting assembly 120, and then enters the air fan assembly 400 through the first cavity 1234, the second cavity 1132 and the air outlet 1131, and is discharged by the air fan assembly 400; another part of the smoke generated during cooking is gathered by the flow guide assembly 200 above and is sucked into the third cavity 320 of the rack assembly 300 by the air fan assembly 400, and is discharged by the air fan assembly 400. The air fan assembly 400 can provide power so that the smoke is discharged from the two paths of the lifting head assembly 100 and the flow guide assembly 200.

[0114] It can be understood that the flow guide assembly 200 comprises a first oil cup 230, the first oil receiving part 130 is in communication with the first oil cup 230, and the oil collected by the lifting head assembly 100 is guided to the first oil cup 230 through the first oil cup 230. The oil collected by the first oil receiving part 130 and the second oil receiving part 140 is collected by the first oil cup 230, which is simple in structure and convenient to clean.

[0115] Compared with the way of arranging an oil cup inside the lifting head assembly 100, the oil circuit problem inside the lifting head assembly 100 and the rack assembly 300 is solved.

[0116] It can be understood that, referring to Figures 17 to 21 As shown, the flow guide assembly 200 comprises a first flow guide piece 210 provided with a first through hole 213, and the first oil cup 230 is connected below the first flow guide piece 210. The first oil cup 230 can be used to receive the oil collected on the lower surface of the first oil guide piece, and by providing the through hole on the first flow guide piece 210, the first oil cup 230 can also be used to receive the oil collected above the first flow guide piece 210.

[0117] In the case that the first oil nozzle 133 is connected to the first oil connecting part 130, the first oil nozzle 133 is connected above the first flow guide 210, the first oil nozzle 133 is provided with a second through hole 1331, and the second through hole 1331 is communicated with the first oil cup 230 through the first through hole 213. The oil stains in the first oil connecting part are guided into the first oil cup 230 through the first oil nozzle 133, so as to collect and clean the oil stains.

[0118] The flow guide assembly 200 further comprises a frame 220, the first flow guide 210 is connected to the frame 220, and the frame 220 surrounds the first flow guide 210, so that the first flow guide 210 is surrounded by the frame 220, avoiding the first flow guide 210 extending out of the frame 220 to affect the appearance of the range hood.

[0119] The first oil cup 230 is also surrounded by the frame 220, that is, the frame 220 hides the first oil cup 230, the shape of the frame 220 is the appearance shape of the flow guide assembly 200, by changing the shape of the frame 220, different shapes of the flow guide assembly 200 can be formed, which is convenient for producing and processing various shapes of the flow guide assembly 200, and further forming various shapes of the range hood.

[0120] It can be understood that the flow guide assembly 200 further comprises a second flow guide 240 above the first flow guide 210, the second flow guide 240 extends to the first flow guide 210 along the top of the frame 220, and the second flow guide 240 is arranged outside the air inlet part of the first flow guide 210. The second flow guide 240 surrounds and guides the flue gas flowing upwards through the air inlet part to the third cavity 320 of the rack assembly 300, and can also prevent the flue gas from escaping above the first flow guide 210 to the frame 220 or outside the frame 220, so as to ensure that the flue gas smoothly enters the rack assembly 300 and is discharged.

[0121] At the same time, the oil stains condensed on the inner wall of the rack assembly 300 can be guided downward through the inner wall of the second flow guide 240, so as to collect the oil stains dripping from the rack assembly 300, and also to avoid the oil stains directly dripping on the upper surface of the first flow guide 210 and splashing.

[0122] It can be understood that, as shown in Figures 18 to 20 It can be understood that, as shown in

[0123] It can be understood that the second opening 241 is connected with a second oil nozzle 250, the second oil nozzle 250 is connected to the first flow guide 210, the second oil nozzle 250 is provided with a third through hole 253, and the third through hole 253 is through the first through hole 213. The oil dirt of the second flow guide 240 is guided to the first oil cup 230 through the second oil nozzle 250, and the second oil nozzle 250 can play a guiding role, and the oil dirt flowing from the second flow guide 240 to the first oil cup 230 is guided and limited.

[0124] It can be understood that, as shown in Figure 19 and Figure 20 , the second oil nozzle 250 includes a first protruding part 251 limiting the third through hole 253, the first protruding part 251 extends downward through the first through hole 213, and the first protruding part 251 guides the oil dirt received by the second oil nozzle 250 into the first oil cup 230, so that overflow between the second oil nozzle 250 and the surface of the first flow guide 210 can be avoided.

[0125] It can be understood that, as shown in Figure 19 and Figure 20 , the second oil nozzle 250 includes a second protruding part 252 limiting a fourth through hole 254, the second protruding part 252 protrudes upward, and the second oil nozzle 250 is fixed to the first flow guide 210 through a fastener passing through the fourth through hole 254. The second oil nozzle 250 is installed on the first flow guide 210 through the fastener, and the second protruding part 252 protrudes upward to avoid the oil dirt entering the gap between the fastener, the second oil nozzle 250 and the first flow guide 210.

[0126] It should be noted that the structure of the first oil nozzle 133 is the same as that of the second oil nozzle 250.

[0127] In combination with the above, the condensate oil on the top of the rack assembly 300 and the condensate oil of the fan system flow into the first oil cup 230 through the second flow guide 240 and the second oil nozzle 250; the condensate oil of the lifting assembly 120 and the corresponding space directly above the condensate oil flow into the second oil cup 235; the condensate oil of other parts of the fixed assembly 110 flows into the first oil cup 230, that is, the condensate oil on the inner wall of the first baffle 113 of the fixed assembly 110 flows into the first oil cup 230 through the first oil receiving part 130; the condensate oil at the installation gap between the first baffle 113 of the fixed assembly 110 and the second baffle 123 of the lifting assembly 120 (part of the condensate oil falls through the gap inside the first baffle 113, and part of the oil fume enters the gap and forms condensate oil on the wall surface) flows into the first oil receiving part 130 through the second oil receiving part 140 and then flows into the first oil receiving part 130; the oil in the first oil receiving part 130 flows into the first oil cup 230; the foregoing structure solves the oil path problem of each module during lifting, avoids oil dripping during use by the user, and greatly reduces the condensate oil on the outer wall of the lifting assembly 120, so that the appearance of the whole machine is cleaner and more tidy.

[0128] In addition, by arranging the first oil receiving part 130 and the second oil receiving part 140 in a staggered manner, the air volume entering the gap between the fixed assembly 110 and the lifting assembly 120 can be greatly reduced, and the condensate oil in the gap can also be reduced.

[0129] It can be understood that the first flow guide 210 includes a flow guide part 211 and an oil collecting part 212 located at the rear side of the flow guide part 211; the flow guide part 211 is inclined downward in a front-to-back direction so as to guide the oil to the oil collecting part 212; the oil collecting part 212 is bent horizontally relative to the flow guide part 211; the oil collecting part 212 is provided with a first through hole 213; the lower side of the oil collecting part 212 is connected to the first oil cup 230; and the oil in the oil collecting part 212 enters the first oil cup 230 through the first through hole 213.

[0130] The first flow guide 210 further includes a smoke collecting part 214 located in front of the flow guide part 211; the smoke collecting part 214 extends upward from the bottom of the frame 220, so that the first flow guide 210 can gather smoke between the first flow guide 210 and the frame 220.

[0131] Some of the first through holes 213 are in communication with the second through hole 1331 of the first oil nozzle 133, and the other first through holes 213 are in communication with the third through hole 253 of the second oil nozzle 250.

[0132] It can be understood that, in the case that the flow guide assembly 200 further comprises a second flow guide 240 above the first flow guide 210, the second flow guide 240 overlaps the flow guide portion 211. The second flow guide 240 is fixedly connected to the bottom of the rack assembly 300, and the second flow guide 240 is simple in installation and convenient in disassembly.

[0133] The front wall surface 242 and the rear wall surface 243 of the second flow guide 240 are both convergent to the flow guide portion 211, so as to guide the oil stains to the flow guide portion 211 and make the oil stains flow along the flow guide portion 211 to the oil collecting portion 212.

[0134] The condensate oil on the inner wall of the rack assembly 300 and the condensate oil on the side wall of the fan assembly 400 are collected and guided by the second flow guide 240 to the upper wall surface of the first flow guide 210, and then guided to the second oil nozzle 250 above the oil collecting portion 212 through the upper wall surface of the inclined flow guide portion 211, and then guided to flow into the first oil cup 230 through the second oil nozzle 250.

[0135] It can be understood that, in the direction from top to bottom, the front wall surface 242 of the inner side of the second flow guide 240 is rearwardly inclined. The front wall surface 242 is rearwardly inclined, so as to guide the oil stains on the inner wall surface of the second flow guide 240 rearwardly, which is helpful for the oil stains to enter the first oil cup 230 rearward of the first flow guide 210.

[0136] It can be understood that, the front of the frame body 220 is provided with a panel 260, which is convenient for a user to operate; the upper of the frame body 220 is provided with a cover plate 270, which is used for covering the space outside the second flow guide 240 and above the first flow guide 210. The first flow guide 210 is provided with a mounting hole 2111, and an oil screen 280 is mounted at the mounting hole 2111, so that the oil fume flows upward through the oil screen 280.

[0137] The above embodiments are only used for describing the present application, but not limiting the present application. Although the present application is described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalent replacements of the technical solutions of the present application do not deviate from the spirit and scope of the present application, and should be covered in the scope of claims of the present application.

Claims

1. An elevator head assembly characterized by, The utility model relates to a lifting head assembly, comprising: a fixed assembly connected with a first oil receiving part; a lifting assembly adapted to move up and down relative to the fixed assembly, a first gap being formed between the lifting assembly and the first oil receiving part, the lifting assembly being connected with a second oil receiving part above the first oil receiving part, a second gap being formed between the second oil receiving part and the fixed assembly, the first gap and the second gap being horizontally projected on a plane and being staggered with each other; the fixed assembly is provided with a first guide part, the lifting assembly is provided with a second guide part matched with the first guide part, the first guide part and the second guide part being adapted to move relative to each other along the lifting direction of the lifting assembly; the second oil receiving part is above the second guide part.

2. The elevator head assembly of claim 1, wherein, the second oil receiving part comprises a first oil guide part, the first oil guide part comprises a first connecting part and an inclined part connected to the first connecting part, the first connecting part being connected to the lifting assembly, the inclined part extending downwardly and away from the lifting assembly.

3. The elevator head assembly of claim 1, wherein, the second oil receiving part comprises a second oil guide part, the second oil guide part being on the side of the second guide part, the second oil guide part comprising a second connecting part and a blocking part connected to the second connecting part, the second connecting part being connected to the lifting assembly, the second connecting part and the blocking part forming a groove with a receiving opening above.

4. The elevator head assembly of claim 3, wherein, the length of the second oil guide part is greater than the width of the second guide part, at least one end of the groove in the length direction having an overflow opening.

5. The elevator head assembly of claim 3, wherein, the second oil guide part is an integral structure formed by bending.

6. The elevator head assembly of claim 3, wherein, the second oil receiving part comprises a first oil guide part, the first oil guide part and the second oil guide part being connected to form a closed loop structure; the first oil guide part comprises a first connecting part and an inclined part connected to the first connecting part, the first connecting part being connected to the lifting assembly, the inclined part extending downwardly and away from the lifting assembly.

7. The elevator head assembly of any one of claims 1-6, wherein, the first oil receiving part forms a groove around the inner wall of the fixed assembly.

8. The elevator head assembly of claim 7, wherein, the first oil receiving part is provided with a first outlet in communication with a first oil cup, the first oil receiving part being inclined upwardly away from the first outlet.

9. The elevator head assembly of claim 8, wherein, a first oil nozzle is connected to the first outlet, the first oil nozzle extending out of the fixed assembly.

10. The elevator head assembly of any one of claims 1-6, wherein, the front side of the lifting assembly is provided with an air inlet, the lifting assembly forming a first cavity, the bottom of the lifting assembly being connected with a second oil cup in communication with the first cavity.

11. A range hood characterized by, a lifting head assembly as claimed in any one of claims 1 to 10 is connected to a rack assembly.

12. The hood according to claim 11, characterized in that, a flow guide assembly is further included, the flow guide assembly being installed on the front side of the fixed assembly, the flow guide assembly being below the rack assembly, the flow guide assembly comprising a first oil cup, the first oil receiving part being in communication with the first oil cup.

13. The hood according to claim 12, characterized in that, The flow guide assembly comprises a first flow guide member with a first through hole, a first oil cup connected below the first flow guide member, a first oil nozzle connected above the first flow guide member in the case of a first oil receiving part connected to the first oil nozzle, the first oil nozzle has a second through hole, and the second through hole is communicated with the first oil cup through the first through hole.

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