Smoke collecting hood assembly and range hood

Abstract

The present invention provides a smoke collecting hood assembly and a range hood, which relate to the technical field of kitchen appliances. The smoke collecting hood assembly includes a smoke collecting hood, and a baffle is provided at the smoke inlet of the smoke collecting hood. The baffle is movably connected to the smoke collecting hood or the baffle is detachably connected to the smoke collecting hood. The baffle divides the smoke inlet of the smoke collecting hood into a first air inlet and a second air inlet; a first filter screen is detachably connected to the first air inlet, and a second filter screen is detachably connected to the second air inlet. The size of the first filter screen is larger than the size of the first air inlet, and the size of the second filter screen is larger than the size of the second air inlet; the filter screen of the present invention is convenient to disassemble, and the effective negative pressure area of the range hood is increased, thereby improving the oil fume suction and exhaust effect of the range hood including the smoke collecting hood assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of kitchen appliances, and in particular to a smoke collecting hood assembly and a range hood. Background Art

[0002] A range hood is a common appliance in modern kitchens, which can collect and exhaust the oil fumes generated during cooking to the outside to improve the environment in the kitchen. However, when cooking, users will constantly wave the spatula and arms, which will disperse the oil fumes generated during cooking, making it difficult for the range hood to collect the oil fumes. The oil fumes will directly escape from the edge of the range hood, causing oil accumulation on the surfaces of furniture such as cabinets around the range hood, which has a great impact on the cleanliness of the kitchen.

[0003] In order to increase the smoke collecting area and effect, a smoke collecting hood is usually added to the range hood. Taking the current common flat-panel range hood as an example, the air inlet of the flat-panel range hood mainly consists of a main machine air inlet, a smoke collecting hood and a filter net. Since the size of the air inlet of the main machine is limited by the installed cabinet and is relatively small and cannot completely cover the cooker, a smoke collecting hood is needed to increase the smoke collecting area. The traditional flat-panel range hood smoke collecting hood has only one air inlet, and the air inlet is directly connected to the air duct main machine. In this way, the negative pressure distribution area of the air inlet of the smoke collecting hood is mainly concentrated near the air inlet of the main machine, and the negative pressure at the edge of the smoke collecting hood is relatively small. During the cooking process, the smoke is easy to spread around, and the oil fumes will directly escape from the edge of the smoke collecting hood, causing the phenomenon of smoke leakage.

[0004] At the same time, when the user is using the range hood normally, in order to keep the appearance of the range hood clean and tidy and the overall smoking effect of the range hood, the filter net needs to be cleaned regularly. In order to facilitate the user to clean the filter net, the installation structure of the filter net is often a detachable structure. At present, the filter net is installed inside the smoke collecting hood. In order to cover the air inlet, the four-side size of the filter net is larger than the four-side size of the air inlet of the smoke collecting hood. It is very difficult to take it out after normal disassembly, resulting in that the user often cannot clean the filter net. At this time, too much grease accumulated in the filter net will also reduce the oil fume exhaust effect. Summary of the Invention

[0005] The purpose of the present invention is to provide a smoke collecting hood assembly and a range hood to solve the technical problems in the prior art that the cleaning convenience of the filter net of the range hood is poor and the effective negative pressure area of the range hood is small, thereby resulting in poor oil fume exhaust effect of the range hood.

[0006] The smoke collecting hood assembly provided by the present invention includes a smoke collecting hood, a baffle is arranged at the smoke inlet of the smoke collecting hood, the baffle is movably connected or detachably connected to the smoke collecting hood, and the baffle divides the smoke inlet of the smoke collecting hood into a first air inlet and a second air inlet;

[0007] A first filter screen is detachably connected corresponding to the first air inlet between one side of the smoke collecting hood located between the first air inlet and the baffle plate. A second filter screen is detachably connected corresponding to the second air inlet between one side of the smoke collecting hood located between the second air inlet and the baffle plate. The size of the first filter screen is larger than the size of the first air inlet, and the size of the second filter screen is larger than the size of the second air inlet.

[0008] Further, a support portion is provided on the circumferential direction of the smoke collecting hood facing the center of the smoke inlet and extending inward. Two ends of the baffle plate are respectively arranged on the support portion on the front side of the smoke inlet and the support portion on the rear side of the smoke inlet.

[0009] Further, the first end of the baffle plate is inserted into the corresponding support portion, and the second end of the baffle plate is detachably connected to the corresponding support portion by a first fixing member;

[0010] One of the front end and the rear end of the baffle plate is the first end of the baffle plate, and the other is the second end of the baffle plate.

[0011] Further, a first bracket is provided on the support portion at the rear side. A first slot is formed between the first bracket and the support portion at the rear side. A first insertion foot is provided at the rear end of the baffle plate, and the first insertion foot is inserted into the first slot. The front end of the baffle plate is detachably connected to the support portion at the front end by a first fixing member.

[0012] Further, the second end of the baffle plate is connected to the corresponding support portion by a ball catch combination, a screw or a buckle.

[0013] Further, limiting blocks for limiting the installation positions of the first filter screen and the second filter screen are respectively provided on the left and right sides of the first bracket.

[0014] Further, the baffle plate is slidably connected to the support portion, and the baffle plate can reciprocally slide in the left-right direction of the smoke collecting hood.

[0015] Further, the baffle plate is connected to the support portion by a sliding component.

[0016] Further, the sliding component includes a slide rail seat, a slide rail and a slider;

[0017] One of the slide rail seat and the slide rail is fixedly connected to the support portion, and the other of the slide rail seat and the slide rail is fixedly connected to the baffle. The slide rail seat is provided with a chute in the left - right direction of the smoke collecting hood. The slider is fixedly connected to the slide rail seat and corresponds to the chute. The slide rail extends in the left - right direction of the smoke collecting hood, and the slide rail is slidably connected in the chute, and the slider is slidably connected to the slide rail.

[0018] Further, balls are provided between the slider and the slide rail;

[0019] and / or;

[0020] Balls are provided between the slide rail and the slide rail seat.

[0021] Further, guide rails are respectively provided on the front support portion and the rear support portion. Rolling members are respectively connected to the front side and the rear side of the baffle. The rolling members are arranged on the guide rails, and the rolling members can roll relative to the guide rails to drive the baffle to slide left and right.

[0022] Further, the rolling member is connected to a driving mechanism, and the driving mechanism is installed on the baffle.

[0023] Further, the rolling member includes a rotating shaft and a gear connected to the rotating shaft. The rotating shaft is rotatably installed on the baffle, the gear is fixedly connected to the rotating shaft, the guide rail is a rack, and the gear meshes with the rack.

[0024] Further, the driving mechanism includes a double - head output motor. The rotating shafts on the front side and the rear side of the baffle are coaxially arranged, and the two output ends of the double - head output motor are respectively connected to the rotating shaft on the front side and the rotating shaft on the rear side of the baffle.

[0025] Further, the number of the baffles is multiple. The multiple baffles can be stacked in sequence in the up - down direction of the smoke collecting hood, and any two of the multiple baffles can be arranged in sequence in the left - right direction of the smoke collecting hood.

[0026] Further, the first end of the baffle is hinged to the corresponding support portion, and the second end of the baffle is detachably connected to the corresponding support portion;

[0027] One of the front end and the rear end of the baffle is the first end of the baffle, and the other is the second end of the baffle.

[0028] Further, the rear end of the baffle is hinged to the rear support portion through a hinge assembly, and the front end of the baffle is detachably connected to the front support portion through a buckle.

[0029] Further, the left side of the first filter screen is plugged into the supporting part at the left end, and the right side of the second filter screen is plugged into the supporting part at the right end. The right side of the first filter screen and the left side of the second filter screen are both fixedly connected to the supporting part at the front end and / or the supporting part at the rear end at the corresponding positions through a second fixing member.

[0030] Further, second brackets are arranged on the rear side surfaces of the supporting parts at the left end and the right end facing the smoke collecting cavity of the smoke collecting hood. The second brackets and the rear side surfaces of the supporting parts form second slots. Second pins are respectively arranged on the left side of the first filter screen and the right side of the second filter screen, and the second pins are inserted into the second slots at the corresponding ends.

[0031] Further, a guiding part extends from the inner edge of the second bracket towards the side where the smoke collecting cavity is located. The guiding part is inclined gradually closer to the center of the smoke collecting hood from the end close to the second bracket to the end far from the second bracket.

[0032] Further, the second fixing member is a screw or a buckle assembly.

[0033] Further, the second fixing member is a buckle assembly. The buckle assembly includes a buckle shell and a buckle head. A buckle groove is arranged on the buckle shell. A guiding hole is arranged on the side wall of the buckle groove near the notch. An elastic member is arranged in the guiding hole. One end of the elastic member facing the buckle groove can extend into the buckle groove, and the elastic member can elastically deform along the direction perpendicular to the notch to the bottom of the groove.

[0034] The buckle head includes a head and a limiting part which are fixedly connected. The limiting part is arranged at the end of the head far from the notch. The head faces the notch, and the head can be inserted into the notch and is fixedly connected to the buckle shell under the action of the elastic member.

[0035] Further, the cross section of the buckle groove is arranged in a "U" shape, and the cross section of the buckle head is arranged in an "Ω" shape. The side edges of the "Ω" shape of the buckle head form the limiting part, and the protruding part of the "Ω" shape of the buckle head forms the head. The radial width of the head end of the head close to the buckle shell is greater than the radial width of the root of the head far from the buckle shell.

[0036] Further, the number of the elastic members is multiple, and the multiple elastic members are arranged at intervals in sequence along the circumferential direction of the buckle groove.

[0037] Further, the elastic member is arranged at one end of the side wall of the buckle groove close to the notch.

[0038] Further, the elastic member is formed by bending a steel wire or a steel sheet.

[0039] Further, the left side of the first filter screen is inserted into the supporting portion at the left end, the right side of the second filter screen is inserted into the supporting portion at the right end, the right side of the first filter screen and the left side of the second filter screen are detachably connected by a fixing plate, the rear end of the fixing plate is inserted into the supporting portion at the rear end, and the front end of the fixing plate is fixedly connected to the supporting portion at the front end through a third fixing member.

[0040] Further, the third fixing member is a screw;

[0041] and / or;

[0042] The third fixing member includes a clamping block and a fixing pin. The clamping block is arranged at a position on the plate surface of the fixing plate close to the rear end. A clamping groove is formed between the clamping block and the plate surface of the fixing plate. The fixing pins are respectively arranged on the right side of the first filter screen and the left side of the second filter screen, and the fixing pins are inserted into the clamping groove.

[0043] Further, the clamping block is arranged close to the rear end of the fixing plate, and the fixing pins are respectively arranged at the rear ends of the right side of the first filter screen and the left side of the second filter screen; the front ends of the right side of the first filter screen and the left side of the second filter screen are respectively connected to the front-end supporting portion through a third fixing member with the fixing plate.

[0044] Further, an oil collecting ring is bent from the inner edge of the supporting portion towards the rear end of the smoke collecting cavity close to the smoke collecting hood, and the first filter screen and the second filter screen are connected to the supporting portion on one side of the oil collecting ring far from the smoke inlet of the smoke collecting hood.

[0045] Further, the oil collecting ring is inclined gradually towards the inside of the smoke collecting hood along the direction from the front end to the rear end.

[0046] Further, the included angle between the rear side surface of the supporting portion facing the smoke collecting cavity and the oil collecting ring is 120 degrees - 160 degrees.

[0047] Further, a space is provided between the first filter screen and the supporting portion at the left end to form a left internal oil path, and a space is provided between the second filter screen and the supporting portion at the right end to form a right internal oil path;

[0048] and / or;

[0049] A space is provided between the baffle plate and the first bracket to form a middle oil path;

[0050] and / or;

[0051] A space is provided between the baffle plate and the supporting portion at the rear end.

[0052] Further, on one side of the smoke collecting hood where the smoke inlet is located, it is gradually inclined backward from the upper end to the lower end. The first filter screen and the second filter screen are gradually inclined backward from the upper end to the lower end. An oil cup is arranged at the rear end of the smoke collecting hood.

[0053] Further, the inclination angle of the side of the smoke collecting hood where the smoke inlet is located relative to the horizontal plane is 5 - 15 degrees.

[0054] The range hood provided by the present invention includes the smoke collecting hood assembly provided by the present invention.

[0055] The smoke collecting hood assembly provided by the present invention includes a smoke collecting hood. A baffle is arranged at the smoke inlet of the smoke collecting hood. The baffle is movably connected to the smoke collecting hood or detachably connected to the smoke collecting hood. The baffle divides the smoke inlet of the smoke collecting hood into a first air inlet and a second air inlet. A first filter screen is detachably connected corresponding to the first air inlet between one side of the smoke collecting hood where the first air inlet is located and the baffle. A second filter screen is detachably connected corresponding to the second air inlet between one side of the smoke collecting hood where the second air inlet is located and the baffle. The size of the first filter screen is larger than the size of the first air inlet, and the size of the second filter screen is larger than the size of the second air inlet. By dividing the smoke inlet of the smoke collecting hood into the first air inlet and the second air inlet through the baffle, under the action of the baffle, the air inlet direction of the main machine can be split into the first air inlet and the second air inlet, so that the effective negative pressure area that can be formed at the smoke inlet of the range hood main machine is increased, thereby improving the smoke suction effect and effectively preventing oil fume from escaping. At the same time, the baffle is movably connected or detachably connected to the smoke collecting hood, making it convenient to disassemble the oil screen. Specifically, when the baffle is movably connected to the smoke collecting hood, the process of disassembling the first filter screen is to move the baffle to a position where it does not affect the first filter screen. When disassembling the second filter screen, move the baffle to a position where it does not affect the second filter screen. Since the movement of the baffle makes the installation position where it is located avoid the disassembly space of the filter screen, it is convenient to disassemble the first filter screen and the second filter screen. When the baffle is detachably connected to the smoke collecting hood, the baffle can be disassembled from the smoke collecting hood, so that the installation position where the baffle is located avoids the disassembly space of the filter screen, which is convenient for disassembling the first filter screen and the second filter screen. Due to the improved convenience of disassembling the first filter screen and the second filter screen, users can timely disassemble and clean the filter screen, avoiding the accumulation of too much grease and affecting the oil fume suction effect. It can be seen that the smoke collecting hood assembly of the present invention makes it convenient to disassemble the filter screen, and the effective negative pressure area of the range hood is increased, thereby improving the oil fume suction and exhaust effect of the range hood including this smoke collecting hood assembly.

[0056] The range hood provided by the present invention includes the smoke collecting hood assembly provided by the present invention, and has the same beneficial effects as those of the smoke collecting hood assembly provided by the present invention, which will not be elaborated here. Description of the Drawings

[0057] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0058] Figure 1 Schematic diagram of an existing single-chamber range hood with an internal filter

[0059] Figure 2 Schematic diagram of an existing double-chamber range hood with an external filter

[0060] Figure 3 Schematic diagram of the range hood provided by the embodiment of the present invention

[0061] Figure 4 Schematic diagram of the smoke collecting hood of the smoke collecting hood assembly provided by the embodiment of the present invention

[0062] Figure 5 Schematic diagram of the first filter screen of the smoke collecting hood assembly provided by the embodiment of the present invention

[0063] Figure 6 Schematic diagram of the baffle of the smoke collecting hood assembly provided by the embodiment of the present invention

[0064] Figure 7 Bottom view of the smoke collecting hood of the range hood provided by the embodiment of the present invention

[0065] Figure 8 Comparison diagram of the smoke extraction effects of the range hood provided by the embodiment of the present invention with baffles of different widths

[0066] Figure 9 Internal view of the smoke collecting hood assembly provided by the embodiment of the present invention

[0067] Figure 10 Schematic diagram of the first installation method of the first filter screen of the smoke collecting hood assembly provided by the embodiment of the present invention

[0068] Figure 11 For Figure 10 Enlarged view of part A

[0069] Figure 12 For Figure 10 Enlarged axonometric view of part B

[0070] Figure 13 Schematic diagram of the first installation method of the baffle of the smoke collecting hood assembly provided by the embodiment of the present invention

[0071] Figure 14 ForFigure 13 Enlarged view of part E;

[0072] Figure 15 For Figure 13 Schematic diagram of removing the baffle of the provided baffle installation method;

[0073] Figure 16 For Figure 10 Schematic diagram of the removal process of the first filter screen and the second filter screen corresponding to the installation method of the provided first filter screen;

[0074] Figure 17 For Figure 16 Enlarged view of part C;

[0075] Figure 18 For Figure 16 View of the first filter screen and the second filter screen moving towards the middle in ;

[0076] Figure 19 For Figure 18 Enlarged view of part D;

[0077] Figure 20 For Figure 16 Schematic diagram of the first filter screen and the second filter screen moving towards the rear end in ;

[0078] Figure 21 Schematic diagram of the installation of the first filter screen and the second filter screen of the smoke collecting hood assembly provided in the embodiment of the present invention in the second way;

[0079] Figure 22 For Figure 21 Side enlarged view of part F;

[0080] Figure 23 For Figure 21 Schematic diagram of the fixing plate;

[0081] Figure 24 For Figure 23 Front enlarged view of part G;

[0082] Figure 25 For Figure 21 Schematic diagram of the bottom surface structure of the smoke collecting hood assembly after removing the baffle shown in ;

[0083] Figure 26 For Figure 21 Internal side view schematic diagram of the smoke collecting hood assembly shown in ;

[0084] Figure 27 For Figure 26 Enlarged view of part H;

[0085] Figure 28 Schematic diagram of the third way of the first filter screen of the smoke collecting hood assembly provided in the embodiment of the present invention;

[0086] Figure 29 For corresponding Figure 28 Schematic structural diagram of the first bracket of the first filter screen shown

[0087] Figure 30 Exploded view of the buckle assembly of the third method of the first filter screen of the smoke collecting hood assembly provided by the embodiment of the present invention

[0088] Figure 31 For Figure 30 Combined schematic diagram of

[0089] Figure 32 For Figure 31 Top view schematic diagram of

[0090] Figure 33 Installation schematic diagram of the first filter screen and the second filter screen of the third method of the smoke collecting hood assembly provided by the embodiment of the present invention. Among them, in this figure, the buckle shell and the buckle head of the buckle assembly of the first filter screen are not yet connected, and the buckle head of the second filter screen is inserted into the buckle shell to complete the connection

[0091] Figure 34 For Figure 33 Axonometric enlarged view of part I of

[0092] Figure 35 For Figure 33 Cross-sectional enlarged view of part J of

[0093] Figure 36 Schematic diagram of the second installation method of the baffle of the smoke collecting hood assembly provided by the embodiment of the present invention

[0094] Figure 37 For Figure 36 Schematic diagram of the baffle shown

[0095] Figure 38 For Figure 37 Enlarged view of part K of

[0096] Figure 39 Schematic diagram of the third method of the baffle of the smoke collecting hood assembly provided by the embodiment of the present invention

[0097] Figure 40 For Figure 39 Schematic diagram of the hinge assembly of

[0098] Figure 41 For Figure 39 Schematic diagram of the baffle installed on the range hood shown

[0099] Figure 42 For Figure 41 Enlarged view of part L of

[0100] Figure 43 Schematic diagram when multiple baffles of the fourth installation method of the baffle of the smoke collecting hood assembly provided by the embodiment of the present invention are stacked;

[0101] Figure 44 For Figure 43 Schematic diagram of the cooperation between the gear and the rack shown;

[0102] Figure 45 For Figure 43 Schematic diagram of the baffle shown.

[0103] Icons: 21'-left air inlet of the filter net; 22'-existing smoke collecting hood assembly; 23'-oil collecting cup; 24'-right air inlet of the filter net; 25'-main machine assembly; 26'-filter oil net;

[0104] 31-smoke collecting hood; 32-first filter net; 33-baffle; 34-oil cup; 35-main machine; 36-second filter net; 37-supporting part; 41-second bracket; 42-oil collecting ring; 44-first bracket; 45-smoke inlet; 46-second slot; 47-first slot; 51-second pin; 52-screw hole; 53-bottom wall surface; 54-side wall surface; 61-first pin; 62-pin shaft of the catch; 91-catch combination; 101-guiding part; 102-limit block; 191-fixed plate pin; 192-block; 193-fixed plate; 194-card slot; 195-fixed pin; 211-buckle assembly; 212-buckle shell; 213-elastic part; 214-buckle head; 215-buckle groove; 216-limit part; 221-sliding assembly; 222-rail; 223-slider; 224-ball; 225-rail seat; 231-hinge assembly; 232-rotating shaft; 233-hinge piece; 241-gear; 242-double-headed output motor; 243-guide rail; 244-rotating shaft. Detailed implementation manners

[0105] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0106] Embodiment

[0107] As Figures 1 to 45As shown in the figure, this embodiment provides a smoke collecting hood assembly, including a smoke collecting hood 31. A baffle 33 is provided at the smoke inlet 45 of the smoke collecting hood 31. The baffle 33 is movably connected to the smoke collecting hood 31 or the baffle 33 is detachably connected to the smoke collecting hood 31. The baffle 33 divides the smoke inlet 45 of the smoke collecting hood 31 into a first air inlet and a second air inlet; a first filter screen 32 is detachably connected corresponding to the first air inlet between one side of the smoke collecting hood 31 where the first air inlet is located and the baffle 33, and a second filter screen 36 is detachably connected corresponding to the second air inlet between one side of the smoke collecting hood 31 where the second air inlet is located and the baffle 33. The size of the first filter screen 32 is larger than the size of the first air inlet, and the size of the second filter screen 36 is larger than the size of the second air inlet.

[0108] It can be understood that the fact that the size of the first filter screen 32 is larger than the size of the first air inlet means that the first filter screen 32 can completely cover the first air inlet, and the circumferential edge of the first filter screen 32 is located outside the circumferential edge of the first air inlet. Similarly, the fact that the size of the second filter screen 36 is larger than the size of the second air inlet means that the second filter screen 36 can completely cover the second air inlet, and the circumferential edge of the second filter screen 36 is located outside the circumferential edge of the second air inlet. Among them, the inner and outer sides of this embodiment are referenced with the centers of the first air inlet and the second air inlet as the inside. The direction from the center of the first air inlet to the edge of the first air inlet is the direction from the inside to the outside, and the direction from the center of the second air inlet to the edge of the second air inlet is also the direction from the inside to the outside.

[0109] Generally, a smoke collecting cavity is provided on the smoke collecting hood 31, and the smoke collecting hood 31 is connected to the chassis of the main unit 35. Under the action of the fan assembly of the main unit 35, the flue gas enters the smoke collecting cavity of the smoke collecting hood 31 from the first air inlet and the second air inlet, and then enters the flue gas passage of the main unit 35 and is discharged through the air duct communicated with the outside.

[0110] In this embodiment, the smoke collecting hood assembly divides the air inlet 45 of the smoke collecting hood 31 into a first air inlet and a second air inlet through the baffle 33. Under the action of the baffle 33, the air inlet direction of the main unit 35 can be split into the first air inlet and the second air inlet, so that the effective negative pressure area formed by the main unit 35 of the range hood at the air inlet 45 of the smoke collecting hood 31 is increased. Accordingly, the size of the air inlet 45 of the smoke collecting hood 31 can be increased compared with the size of the air inlet 45 of the existing smoke collecting hood assembly, thereby improving the smoking effect and effectively preventing oil fume from escaping. At the same time, the baffle 33 is movably connected or detachably connected to the smoke collecting hood 31, making it convenient to disassemble the oil net. Specifically, when the baffle 33 is movably connected to the smoke collecting hood 31, the process of disassembling the first filter net 32 is to move the baffle 33 to a position where it does not affect the first filter net 32. When disassembling the second filter net, move the baffle 33 to a position where it does not affect the second filter net. Since the movement of the baffle 33 makes the installation position where it is located avoid the disassembly space of the filter net, it is convenient to disassemble the first filter net 32 and the second filter net 36; when the baffle 33 is detachably connected to the smoke collecting hood 31, the baffle 33 can be disassembled from the smoke collecting hood 31, so that the installation position where the baffle 33 is located avoids the disassembly space of the filter net, facilitating the disassembly of the first filter net 32 and the second filter net 36. Due to the improved convenience of disassembling the first filter net 32 and the second filter net 36, the user can promptly disassemble and clean the filter net, avoiding the accumulation of too much grease and affecting the oil fume suction effect. It can be seen that the smoke collecting hood assembly of this embodiment makes it convenient to disassemble the filter net, and the effective negative pressure area of the range hood is increased, thereby improving the oil fume suction and exhaust effect of the range hood including this smoke collecting hood assembly.

[0111] Specifically, the baffle 33 can be arranged between the front and rear ends of the smoke collecting hood assembly. At this time, the first air inlet divided by the baffle 33 from the air inlet 45 of the smoke collecting hood assembly is the left air inlet, and the second air inlet is the right air inlet. The baffle 33 can also be arranged between the left and right ends of the smoke collecting hood assembly. At this time, the first air inlet divided by the baffle 33 from the air inlet 45 of the smoke collecting hood assembly is the rear air inlet, and the second air inlet is the front air inlet. Naturally, the baffle 33 can also be arranged diagonally along the range hood, etc. Considering that two double cooktops arranged left and right are often used in general kitchens, the baffle 33 of the smoke collecting hood assembly of this embodiment is preferably arranged between the front and rear ends of the smoke collecting hood assembly.

[0112] It should be noted that the left and right, front and rear, and up and down in this embodiment are all reference descriptions based on the use state of the smoke collecting hood assembly installed in the kitchen.

[0113] Further, as Figure 9 and Figure 16As shown in the figure, a smoke collecting hood 31 is provided with a support portion 37 extending inwardly towards the center of the smoke inlet 45 on the circumferential surface of the smoke inlet 45. The front end and the rear end of the baffle 33 are respectively arranged on the support portion 37 on the front side of the smoke inlet 45 and the support portion 37 on the rear side of the smoke inlet 45.

[0114] Specifically, in the first installation method of the baffle 33, as Figure 13 shown, the first end of the baffle 33 is inserted into the corresponding support portion 37, and the second end of the baffle 33 is detachably connected to the corresponding support portion 37 through a first fixing member; one of the front end and the rear end of the baffle 33 is the first end of the baffle 33, and the other is the second end of the baffle 33. That is to say, it can be that the front end of the baffle 33 is inserted into the support portion 37 on the front side, and the rear end of the baffle 33 is detachably connected to the support portion 37 on the rear side through a first fixing member; it can also be that the rear end of the baffle 33 is inserted into the support portion 37 on the rear side, and the front end of the baffle 33 is detachably connected to the support portion 37 on the front side through a first fixing member.

[0115] It should be noted that the rear side of the baffle 33 is at the rear side of the cooking range and is far from the operator. Therefore, in order to facilitate the disassembly of the baffle 33, generally, the rear side of the baffle 33 can be inserted into the support portion 37 on the rear side, and the front end of the baffle 33 is detachably connected to the support portion 37 on the front side through a first fixing member. In a specific implementation manner of this method, a first bracket 44 is arranged on the support portion 37 on the rear side. A first slot 47 is formed between the first bracket 44 and the support portion 37 on the rear side. A first insertion foot 61 is arranged at the rear end of the baffle 33, and the first insertion foot 61 is inserted into the first slot 47. The front end of the baffle 33 is detachably connected to the support portion 37 on the front side through a first fixing member.

[0116] Specifically, the first fixing member can be a bead combination 91, a screw or a buckle, etc. That is to say, the second end (i.e., the front end) of the baffle 33 is connected to the corresponding support portion 37 (i.e., the front end) through the bead combination 91; or, the second end (i.e., the front end) of the baffle 33 is connected to the corresponding support portion 37 (i.e., the front end) through a screw, or, the second end (i.e., the front end) of the baffle 33 is connected to the corresponding support portion 37 (i.e., the front end) through a buckle.

[0117] The bead combination 91, the screw, the buckle, etc. can all adopt the existing technology. Among them, as Figure 6 shown, when adopting the bead combination 91, the bead shaft 62 of the bead combination 91 can be arranged on the baffle 33, as Figure 13 shown, the component of the bead combination 91 adapted to the bead shaft 62 is arranged on the support portion 37.

[0118] As Figures 36 to 38, in the second installation method of the baffle 33, the baffle 33 is slidably connected to the support portion 37, and the baffle 33 can reciprocally slide in the left - right direction of the smoke collecting hood 31.

[0119] As a preferred method, the baffle 33 is connected to the support portion 37 through a sliding assembly 221. Specifically, slide rails 222 are respectively arranged on the rear support portion 37 and the front support portion 37 along their respective length extension directions (the length extension direction is generally the left - right direction of the range hood in the use state, that is, Figure 36 the left - right direction shown). Sliders 223 are arranged at both the front end and the rear end of the baffle 33, and the sliders 223 are installed on the slide rails 222, and the sliders 223 can slide in the left - right direction along the slide rails 222.

[0120] Furthermore, as Figure 38 shown, the side surface of the slider 223 covers the outside of the side surface of the slide rail 222, and a ball 224 is arranged between the inner side surface of the slider 223 and the outer side surface of the slide rail 222. It can be understood that the ball 224 can make the sliding between the slider 223 and the slide rail 222 a rolling - sliding, improving the smoothness of the baffle 33 during the sliding process.

[0121] In order to improve the stability of the baffle 33 during the movement, as Figure 38 shown, slide rail seats 225 are respectively arranged at the front end and the rear end of the baffle 33 of this embodiment. A chute is arranged on the slide rail seat 225 along the extension direction of the slide rail 222, and the slider 223 is installed on the corresponding slide rail seat 225 and corresponds to the chute. The slide rail 222 is slidably inserted into the chute, and the slider 223 is relatively fixed to the slide rail seat 225. When the baffle 33 slides left and right, for example, when the baffle 33 slides left as Figure 36 shown, the baffle 33, together with the slide rail seat 225 and the slider 223, moves left. The cooperation between the slide rail 222 and the chute of the slide rail seat 225 guides the slide rail seat 225 to move left in a straight line. At the same time, the cooperation between the slider 223 and the slide rail 222 strengthens the guiding effect, ensuring the stability of the baffle 33 during the movement process.

[0122] It should be noted that the slide rail 222 can be arranged on the side of the support portion 37 facing the fan assembly, that is, on the side close to the smoke collecting cavity of the smoke collecting hood 31, that is, the rear side ( Figure 36 shown as the direction perpendicular to the paper surface and inward is the rear). Correspondingly, the slide rail seats 225 are arranged on the front sides of the front end and the rear end of the baffle 33 that are away from the smoke passage of the range hood; that is, the front end and the rear end of the baffle 33 are respectively arranged on the rear sides of the front support portion 37 and the rear support portion 37. The slide rail 222 can also be arranged on the front side of the support portion 37 that is away from the smoke passage of the range hood ( Figure 36The direction perpendicular to the paper surface and outward is defined as the front. Correspondingly, the slide rail seats 225 are arranged on the front end and the rear end of the baffle 33 near the rear side of the range hood passage; that is, the front end and the rear end of the baffle 33 are respectively arranged on the front side of the front support portion 37 and the front side of the rear support portion 37.

[0123] The installation positions of the slide rail 222 and the slide rail seats 225 can also be interchanged, that is, the slide rail 222 is arranged on the baffle 33 and the slide rail seats 225 are arranged on the support portion 37. The covering relationship between the slider 223 and the slide rail 222 can also be interchanged, that is, the slider 223 can be arranged inside the slide rail 222, and balls 224 are arranged between the outer side wall of the slider 223 and the inner side surface of the slide rail 222. In addition, the slider 223 can also be provided with balls 224 on other surfaces in contact with the slide rail 222. To improve the sliding smoothness, balls 224 can also be arranged between the slide rail 222 and the slide rail seats 225.

[0124] It can be understood that the baffle 33 is slidably connected to the support portion 37, so that by sliding the baffle 33 relative to the support portion 37 in the left-right direction, the installation and disassembly space for the first filter screen 32 or the second filter screen 36 can be avoided. The baffle 33 does not need to be disassembled, which is convenient for operation.

[0125] As Figures 39 to 42 shown, in the third installation method of the baffle 33, the first end of the baffle 33 is hinged to the support portion 37 at its corresponding end, and the second end of the baffle 33 is detachably connected to the support portion 37 at its corresponding end; one of the front end and the rear end of the baffle 33 is the first end of the baffle 33, and the other is the second end of the baffle 33. That is, the front end of the baffle 33 is hinged to the front support portion 37, and the rear end of the baffle 33 is detachably connected to the rear support portion 37, or the rear end of the baffle 33 is hinged to the rear support portion 37, and the front end of the baffle 33 is detachably connected to the front support portion 37.

[0126] Generally speaking, the rear end of the baffle 33 is far from the user, so it is not convenient to operate. Therefore, preferably, the rear end of the baffle 33 is hinged to the rear support portion 37, and the front end of the baffle 33 is detachably connected to the front support portion 37. Specifically, it can be, as Figure 39 and Figure 41 shown, the rear end of the baffle 33 is hinged to the rear support portion 37 through the hinge assembly 231, and the front end of the baffle 33 is detachably connected to the front support portion 37 through the catch combination 91 formed by the catch shaft 62 and the corresponding components.

[0127] It should be noted that the hinge assembly 231 includes two hinge plates 233 and a rotating shaft 232 hinged between the two hinge plates 233. Figure 41 The included angle γ shown on it represents the rotation angle of the two hinge plates 233, that is, the amplitude that the baffle 33 can rotate.

[0128] It can be understood that one end of the baffle 33 is hinged and the other end is detachably connected. After the detachable end is detached, the baffle 33 can rotate around the hinged end to avoid the installation and disassembly space of the first filter screen 32 or the second filter screen 36, which is convenient for operation.

[0129] As Figures 43 to 45 shown, in the fourth installation method of the baffle 33, guide rails 243 are respectively arranged on the front support part 37 and the rear support part 37. Rolling members are respectively connected to the front side and the rear side of the baffle 33. The rolling members are arranged on the guide rails 243, and the rolling members can roll relative to the guide rails 243 to drive the baffle 33 to slide left and right.

[0130] Among them, a force can be applied to the baffle 33 manually to make the baffle 33 slide in the left-right direction under the rolling action of the rolling members. At the same time, a driving mechanism can also be set to drive the rolling members to roll. The rolling members can be rollers. At this time, the guide rails 243 are matched with the rollers; the rolling members can also be gears 241. At this time, the guide rails 243 are racks adapted to the gears 241. Specifically, in this embodiment, as Figure 45 shown, the rolling members are connected with a driving mechanism. The driving mechanism is installed on the baffle 33. The rolling members include a rotating shaft 244 and gears 241 connected to the rotating shaft 244. The rotating shaft 244 is rotatably installed on the baffle 33. Specifically, thickened parts are arranged at the front end and the rear end of the baffle 33, and mounting holes are arranged on the thickened parts. The rotating shaft 244 is inserted into the mounting holes. The gears 241 are fixedly connected to the rotating shaft 244. The guide rails 243 are racks, and the gears 241 are engaged with the racks. The driving mechanism includes a double-headed output motor 242. The rotating shaft 244 on the front side of the baffle 33 and the rotating shaft 244 on the rear side of the baffle 33 are coaxially arranged. Two output ends of the double-headed output motor 242 are respectively connected to the rotating shaft 244 on the front side of the baffle 33 and the rotating shaft 244 on the rear side of the baffle 33.

[0131] It can be understood that the gears 241 on the front and rear sides are generally of the same size. The double-headed output motor 242 is also a motor with output shafts connected to both ends. When the double-headed output motor 242 is started, it synchronously drives the rotating shafts 244 on the front and rear sides to rotate, and further makes the gears 241 on the rotating shafts 244 on the front and rear sides move synchronously along the guide rails 243 (i.e., the racks), which is convenient for operation and has good synchronism.

[0132] In this embodiment, the number of baffles 33 of the smoke collecting hood assembly can be one. During use, generally, the baffle 33 is located in the middle in the left - right direction of the smoke collecting hood assembly, and the sizes of the first air inlet and the second air inlet formed are approximately the same. Naturally, a single baffle 33 can also be arranged at a position close to the left or right side of the smoke collecting hood assembly as required. The number of baffles 33 can also be multiple. Multiple baffles 33 can be stacked in sequence in the up - down direction of the smoke collecting hood 31, and any two of the multiple baffles 33 can be arranged in sequence in the left - right direction of the smoke collecting hood 31. It can be understood that the installation method of each baffle 33 among the multiple baffles 33 can be different. For example, during the stacking process, the lowermost baffle 33 is installed in the first installation method of the baffle 33 in this embodiment, and the other baffles 33 are installed in the second or fourth installation method. The installation methods of each baffle 33 among the multiple baffles 33 can also be the same. For example, as Figure 43 shown, all are installed in the fourth installation method of the baffle 33. Among them, Figure 43 as shown, the number of baffles 33 is 3, and the 3 baffles 33 are in a stacked state at this time. As Figure 44 shown, the heights of the corresponding racks of the multiple baffles 33 increase in sequence in the up - down direction to facilitate the movement of each baffle 33.

[0133] When multiple baffles 33 are used, the sizes of the first air inlet and the second air inlet can be adjusted by arranging the baffles 33, so as to allocate the air intake volumes of the left and right air inlets as required, that is, the oil - fume treatment capabilities of the two air inlets can be allocated. For example, when the air intake volume of the first air inlet on the left side is required to be small, two of the multiple baffles 33 can be arranged from the middle of the smoke collecting hood 31 to the left side in sequence, and at this time, the air intake volume on the right side increases. For another example, when the sizes of the baffles 33 are set reasonably, the multiple baffles 33 can block the first air inlet, and at this time, only the second air inlet can be left to adsorb oil - fume.

[0134] It should be noted that the widths of the multiple baffles 33 in the left - right direction of the smoke collecting hood 31 can be the same or different. In a preferred solution, the widths of the multiple baffles are the same, and when the multiple baffles 33 are arranged in sequence in the left - right direction, they are not less than the width of the first air inlet or the second air inlet in the left - right direction, so that when the baffles 33 are arranged in sequence to the maximum extent, the first air inlet or the second air inlet can be sealed.

[0135] Furthermore, the width of the baffle 33 of the smoke collecting hood assembly in this embodiment can be between 90 millimeters and 170 millimeters, specifically, it can be 90 millimeters, 100 millimeters, 110 millimeters, 120 millimeters, 130 millimeters, 140 millimeters, 150 millimeters, 160 millimeters, 170 millimeters.

[0136] It should be noted that if the width of the baffle 33 is too narrow, it is easy to cause the failure of the baffle 33 to split the flue gas at the first air inlet and the second air inlet. If the width of the baffle 33 is too wide, it is easy to occupy a large area of the smoke inlet 45 of the smoke collecting hood assembly, resulting in a reduction in the areas of the first air inlet and the second air inlet. Therefore, the width of the baffle 33 has a great influence on the oil fume suction efficiency. The width of the baffle 33 in this embodiment is 90 mm to 170 mm. When applied to existing conventional range hoods, it has a high smoking efficiency, and the disassembly and assembly of the first filter screen 32 and the second filter screen 36 are highly convenient. At the same time, considering the current appearance size of the range hood and the convenience of disassembling and assembling the filter screen, a baffle 33 with a width of 130 mm is the best choice.

[0137] Figure 8 Figure a in shows the oil fume suction effect diagram when the width W1 of the baffle 33 is 90 mm. Figure 8 Figure b in shows the oil fume suction effect diagram when the width W1 of the baffle 33 is 130 mm. The airflow disturbance state at the positions of the first air inlet and the second air inlet is shown in part d. By comparison, it can be seen that when the width W1 of the baffle 33 is 130 mm, the airflow disturbance between the first air inlet and the second air inlet is smaller.

[0138] In order to facilitate the positioning of the installation positions of the first filter screen 32 and the second filter screen 36, a limit block 102 can also be provided on the front support part 37 or the rear support part 37 of the smoke collecting hood 31. For example, as Figure 12 shown, in the way that the baffle 33 is inserted through the first bracket 44, limit blocks 102 are respectively arranged on the left and right sides of the first bracket 44. The left limit block 102 is used to position the installation position of the first filter screen 32, so as to facilitate the right end of the first filter screen 32 to be connected to the first bracket 44 and the support part 37 of the smoke collecting hood 31 by screws or the like; the right limit block 102 is used to position the installation position of the second filter screen 36, so as to facilitate the left end of the second filter screen 36 to be connected to the first bracket 44 and the support part 37 of the smoke collecting hood 31 by screws or the like.

[0139] There are also various detachable installation methods for the first filter screen 32 and the second filter screen 36 of the smoke collecting hood assembly in this embodiment. In the first installation method, the left side of the first filter screen 32 is inserted into the support part 37 at the left end, and the right side of the second filter screen 36 is inserted into the support part 37 at the right end. The right side of the first filter screen 32 and the left side of the second filter screen 36 are both fixedly connected to the support part 37 at the corresponding positions through the second fixing member. Among them, the fixing methods for the right side of the first filter screen 32 and the left side of the second filter screen 36 can be the same or different, and generally the same method is adopted. It can be that both the front end and the rear end of the right side of the first filter screen 32 are detachably fixedly connected to the support part 37 through the second fixing member; it can also be that the rear end of the right side of the first filter screen 32 is lapped with the support part 37 at the rear end, and the front end of the right side of the first filter screen 32 is fixedly connected to the support part 37 at the front end through the second fixing member. In this embodiment, the latter method is adopted. Similarly, the second filter screen 36 can also adopt a similar installation method, which will not be elaborated here.

[0140] As a specific plug-in method of the filter screen, as Figure 4 shown, second brackets 41 are provided on the side surfaces of the support part 37 at the left end and the support part 37 at the right end close to the rear side of the flue gas passage of the range hood. As Figure 10 shown, the second bracket 41 and the side surface at the rear side of the support part 37 form a second slot 46. As Figure 5 shown, second pins 51 are respectively provided on the left side of the first filter screen 32 and the right side of the second filter screen 36. As Figure 10 shown, the second pins 51 are respectively inserted into the second slots 46 at the corresponding ends.

[0141] Furthermore, in order to facilitate the insertion of the second pin 51 into the second slot 46, as Figure 11As shown in the figure, a guiding portion 101 extends from the inner edge of the second bracket 41 towards the side where the smoke collecting cavity is located. The guiding portion 101 is inclined such that it gradually approaches the center of the smoke collecting hood 31 from the end close to the second bracket 41 to the end far from the second bracket 41. It can be understood that the inclined guiding portion 101 forms a guiding surface, and the second pin 51 can enter the second slot 46 along the guiding portion 101, facilitating the insertion and improving the assembly efficiency. Specifically, the left side of the first filter net 32 and the right side of the second filter net 36 are respectively inserted into the second slot 46 formed by the smoke collecting hood 31 and the second bracket 41 through the second pin 51. Since an oil collecting ring 42 is usually provided on the supporting portion 37 of the smoke collecting hood 31, and the edge of the oil collecting ring 42 is higher than the second slot 46 of the second leg. At this time, if there is no guiding portion 101, when the user installs the second pins 51 of the first filter net 32 and the second filter net 36, it is very easy to directly pass above the second slot 46 of the second bracket 41 and cannot quickly and effectively insert the second pins 51 directly into the second slot 46. Therefore, a guiding portion 101 for guiding is provided on the second bracket 41. The angle between the guiding portion 101 and the horizontal plane (the horizontal plane is actually the plane where the smoke inlet of the smoke collecting hood 31 is located, and the specific angle can be referred to the acute angle formed by the guiding portion 101 and the second pin 51 on the right side as shown in Figure 11 can be 60 degrees to 85 degrees, specifically an angle of 75 degrees. When installing the second pin 51, it can increase the contact opportunity between the second pin 51 and the guiding portion 101, and at the same time, the 75-degree inclination angle can effectively guide the second pin 51 to accurately insert into the second slot 46 of the second bracket 41.

[0142] Specifically, the second fixing member is a screw or a buckle assembly 211, and the screw or the buckle assembly 211 can adopt existing conventional technologies. Among them, when both the second fixing member and the first fixing member of the fixed baffle 33 are screws, the screws at the corresponding positions can be the same. As a preferred form, this embodiment can also provide an improved buckle assembly 211, specifically in the third way of the filter net, that is, as shown in Figure 30 and Figure 31As shown, the buckle assembly 211 includes a buckle housing 212 and a buckle head 214. A buckle groove 215 is provided on the buckle housing 212. A guiding hole is provided on the side wall of the buckle groove 215 near the notch. An elastic member 213 is arranged in the guiding hole. One end of the elastic member 213 facing the buckle groove 215 can extend into the buckle groove 215, and the elastic member 213 can elastically deform along the direction perpendicular to the notch to the bottom of the groove; the buckle head 214 includes a head and a limiting portion 216 fixedly connected. The limiting portion 216 is arranged at one end of the head away from the notch. The head faces the notch, and the head can be inserted into the notch and is fixedly connected to the buckle housing 212 under the action of the elastic member 213. One of the buckle housing 212 and the buckle head 214 of the buckle assembly 211 between the first filter screen 32 and the corresponding supporting portion 37 is connected to the first filter screen 32, and the other is connected to the supporting portion 37; specifically, in this embodiment, as Figure 34 shown, the buckle housing 212 is fixed on the first filter screen 32, and the buckle head 214 is installed on the supporting portion 37. One of the buckle housing 212 and the buckle head 214 of the buckle assembly 211 between the second filter screen 36 and the corresponding supporting portion 37 is connected to the second filter screen 36, and the other is connected to the supporting portion 37. Specifically, in this embodiment, as Figure 35 shown, the buckle housing 212 is fixed to the second filter screen 36, and the buckle head 214 is fixedly connected to the supporting portion 37.

[0143] In order to make the stability of the buckle head 214 and the buckle housing 212 higher when they are fixed, in this embodiment, the cross-section of the buckle groove 215 of the buckle housing 212 (the cross-section cut by the plane parallel to the notch and pointing to the bottom of the groove, that is, Figure 30 the cross-section cut by the plane parallel to the paper surface shown) is U-shaped, and the connection position between the horizontal surface and the side surface of the bottom surface of the U-shape ( Figure 30 the upper surface shown) has a smooth transition. The cross-section of the buckle head 214 (the plane cut by the plane parallel to the head and pointing to the limiting portion 216, that is, Figure 30 the cross-section cut by the plane parallel to the paper surface shown) is generally Ω-shaped. The two sides of the Ω-shape form the limiting portion 216, and the limiting portion 216 is fixed on the supporting portion. The middle protruding portion of the Ω-shape forms the head. The radial width of the head end of the end of the head close to the buckle housing 212 ( Figure 30 the upper end shown) ( Figure 30 the radial direction perpendicular to the up and down direction is parallel to the radial direction of the head) is larger than the radial width of the root end of the end of the head away from the buckle housing 212 ( Figure 30 the lower end shown). The elastic member 213 extends along the radial direction of the buckle housing 212, and the elastic member 213 is arranged at one end of the buckle groove 215 of the buckle housing 212 close to the notch. Multiple elastic members 213 can be arranged along the direction of the buckle groove 215.

[0144] It can be understood that the buckle assembly 211 can achieve the quick disassembly and assembly of the first filter screen 32 and the second filter screen 36. During use, the buckle housing 212 pre-compresses the elastic member 213 at the outlet (i.e., the notch) of the buckle groove 215, making the outlet of the buckle groove 215 smaller than the inside of the buckle groove 215. The buckle head 214 is a structure with a large protruding head and a small root. When the buckle head 214 is to be installed into the buckle groove 215, the elastic member 213 is compressed, making the outlet of the buckle groove 215 larger, and the buckle head 214 can smoothly enter the buckle groove 215. After the buckle head 214 has entered the buckle groove 215, because the root of the buckle head 214 is smaller, the elastic member 213 rebounds, and the elastic member 213 clamps the buckle head 214 through the elastic member 213, making the two parts of the buckle housing 212 and the buckle head 214 tightly fit together.

[0145] Furthermore, in this embodiment, the elastic member 213 of the buckle assembly 211 can be in the form of a spring cooperating with a ball, or it can be a snap ring. In this embodiment, as Figure 32 shown, the bent part represents the elastic member 213. The elastic member 213 is a bent metal sheet or metal wire, etc. Specifically, it can be made of steel. The elastic member 213 as a whole has elasticity. A receiving cavity is provided in the buckle housing 212, and the elastic member 213 is installed in the receiving cavity, and one end of the elastic member 213 penetrates into the buckle groove 215 through a guiding hole. When being squeezed by the head of the buckle head 214, the whole will undergo elastic bending deformation to make way for the passing gap of the buckle head 214. At the same time, the material of the elastic member 213 is a rigid material. When the buckle head 214 enters the buckle groove 215, the elastic member 213 can be reset to the position of locking the root of the buckle head 214.

[0146] It should be noted that multiple elastic members 213 can be of a split structure. For example, each elastic member 213 is respectively formed by a metal sheet or a bent metal sheet; multiple elastic sheets can also be of an integral structure. As Figure 32 shown, in this embodiment, two elastic members 213 are arranged circumferentially along the buckle housing 212, and the two elastic members 213 are of an integral structure. The metal sheet or metal wire surrounds the buckle housing 212 circumferentially, and both ends respectively penetrate into the buckle groove 215, which is equivalent to both ends after a metal sheet or metal wire is bent serving as the elastic members 213 directly abutting against the buckle head 214.

[0147] The material of the buckle head 214 can also be a metal material, such as steel. It itself has rigidity, but when designed as an "Ω" shape, when the material thickness is selected appropriately, and the whole also has a certain elasticity, it is more convenient for it to enter the buckle groove 215 through the position where the elastic member 213 is located.

[0148] In the second installable manner of the first filter screen 32 and the second filter screen 36 of the smoke collecting hood assembly in this embodiment, the left end of the first filter screen 32 is inserted into the left support portion 37, and the right side of the second filter screen 36 is inserted into the right support portion 37. The specific insertion method can be the same as that of the first installation method. The right side of the first filter screen 32 and the left side of the second filter screen 36 are detachably connected through a fixing plate 193. The rear end of the fixing plate 193 is inserted into the support portion 37 at the rear end. Specifically, fixing plate pins 191 are provided at the rear end of the fixing plate 193, and the fixing plate pins 191 are inserted into a first slot 47 formed by the first bracket 44 and the support portion 37 at the rear end. The front end of the fixing plate 193 is fixedly connected to the support portion 37 at the front end through a third fixing member.

[0149] Specifically, the third fixing member can be a screw, a buckle, a snap bead assembly, etc., and is a screw in this embodiment. The fixing plate 193 can be detachably connected to one of the first filter screen 32 and the second filter screen 36, and fixedly connected to the other, or the fixing plate 193 can be detachably connected to both the first filter screen 32 and the second filter screen 36. In this embodiment, both the first filter screen 32 and the second filter screen 36 are detachably connected to the fixing plate 193. As Figure 23 and Figure 24 shown, a clamping block 192 is provided at a position near the rear end of the plate surface of the fixing plate 193, and a clamping groove 194 is formed between the clamping block 192 and the plate surface of the fixing plate 193. As Figure 21 and Figure 22 shown, fixing pins 195 are respectively provided on the right side of the first filter screen 32 and the left side of the second filter screen 36, and the fixing pins 195 are inserted into the clamping groove 194. Screw holes 52 are provided at the front end of the fixing plate 193, and one screw hole 52 is respectively provided on the left and right sides at the front end of the fixing plate 193. Fixing feet are respectively provided at the front ends of the right side of the first filter screen 32 and the left side of the second filter screen 36, and screw holes 52 are also provided on the fixing feet. The front end of the first filter screen 32 and the front end of the fixing plate 193 are integrally fixedly connected to the smoke collecting hood 31 by screwing a screw through the screw hole 52 of the first filter screen 32 and the screw hole 52 on the left side at the front end of the fixing plate 193. Similarly, the front end of the second filter screen 36 and the front end of the fixing plate 193 are integrally fixedly connected to the smoke collecting hood 31 by screwing a screw through the screw hole 52 of the second filter screen 36 and the screw hole 52 on the right side at the front end of the fixing plate 193.

[0150] It can be understood that the fixing plate 193 itself can be used as the baffle 33. Therefore, when using the fixing plate 193, the baffle 33 can be not provided. However, at this time, the fixing plate 193 should be fixed by a non-quick-release structure such as screws to improve safety performance. In actual use, for the convenience of disassembly and aesthetics, generally, the baffle 33 is still provided on the outer side of the fixing plate 193 (the side facing the smoke inlet 45 of the smoke collecting hood 31). In this way, the clamping block 192 of the fixing plate 193 can be provided on the side of the fixing plate 193 facing the baffle 33, that is, the outer side, which facilitates the insertion of the first filter net 32 and the second filter net 36. At the same time, there is still the baffle 33 outside the side of the fixing plate 193 where the clamping block 192 is provided, which also avoids the accumulation of oil fumes in the gaps such as the clamping block 192 and is beneficial to keeping the fixing plate 193 clean.

[0151] In this embodiment, the smoke collecting hood assembly also improves the oil path. Specifically, as Figure 10 shown, an oil collecting ring 42 is bent from the inner edge of the supporting portion 37 towards the rear end of the smoke collecting cavity of the smoke collecting hood 31. Specifically, the oil collecting ring 42 is inclined towards the inside of the smoke collecting hood 31 gradually along the direction from the front end to the rear end. The first filter net 32 and the second filter net 36 are connected to the supporting portion 37 on the side of the oil collecting ring 42 facing away from the smoke inlet 45 of the smoke collecting hood 31. That is, a second bracket 41 is installed on the left side of the oil collecting ring 42 of the supporting portion 37 at the left end to be inserted into the second insertion foot 51 on the left side of the first filter net 32; a second bracket 41 is installed on the right side of the oil collecting ring 42 of the supporting portion 37 at the right end to be inserted into the second insertion foot 51 on the right side of the second filter net 36.

[0152] Among them, the rear end of the smoke collecting cavity of the smoke collecting hood 31 refers to the end opposite to the first air inlet and the second air inlet, that is, the inner edge of the supporting portion 37 bulges towards the side where the smoke collecting cavity is located and into the smoke collecting cavity to form the oil collecting ring 42. The oil collecting ring 42 is arranged in a circle along the circumference of the smoke inlet 45 of the smoke collecting hood 31.

[0153] In this embodiment, the smoke inlet 45 of the smoke collecting hood 31 of the smoke collecting hood assembly is inclined, that is, one side of the smoke inlet 45 of the smoke collecting hood 31 is inclined. Specifically, the smoke inlet 45 of the smoke collecting hood 31 is gradually inclined backward from the upper end to the lower end, and an oil cup 34 is provided at the rear end of the smoke collecting hood 31. Among them, as Figure 13 shown, the inclination angle β of the smoke inlet 45 of the smoke collecting hood 31 relative to the horizontal plane can be 5 - 15 degrees, which can be 5 degrees, 10 degrees, and 15 degrees, and is preferably about 10 degrees.

[0154] As Figure 13 and Figure 14 shown, Figure 13 the right side of Figure 13 and Figure 14On the left side is the rear end of the smoke collecting hood 31. When the smoke inlet 45 of the smoke collecting hood 31 is inclined, since the first filter screen 32 and the second filter screen 36 are installed on the support portion 37 forming the smoke inlet 45, the first filter screen 32 and the second filter screen 36 are also inclined, and the inclination directions of the first filter screen 32 and the second filter screen 36 are the same as that of the smoke inlet 45 of the smoke collecting hood 31, that is, both the first filter screen 32 and the second filter screen 36 are arranged with the front end higher than the rear end.

[0155] It can be understood that the first filter screen 32 and the second filter screen 36 are inclined, and the smoke inlet 45 of the smoke collecting hood 31 is inclined, so that the oil collecting rings 42 on the support portions 37 on both sides can serve as the oil paths on the left side of the first filter screen 32 and the right side of the second filter screen 36, and flow from the front end to the rear end under the action of gravity, and then flow into the oil cup 34 at the rear end. At the same time, the oil collecting ring 42 forms an inner stop portion of the oil path, preventing the oil droplets dripping from the first filter screen 32 and the second filter screen 36 from flowing into the smoke collecting hood 31 and ensuring the cleanliness of the inside of the smoke collecting hood 31. Further, the oil collecting ring 42 is formed by bending backward through the support portion 37 of the smoke collecting hood 31, that is, the oil collecting ring 42 and the support portion 37 are of an integral structure, which is convenient for processing. The oil collecting ring 42 is not easy to generate a gap with the support portion 37, avoiding the leakage of oil stains, and there is no connection seam between the support portion 37 and the oil collecting ring 42, making the flow of oil stains smoother.

[0156] Specifically, the included angle α between the oil collecting ring 42 and the rear side surface of the support portion 37 is 120 degrees to 160 degrees, which can be 120 degrees, 130 degrees, 140 degrees, 150 degrees or 160 degrees, etc. In this embodiment, it is preferably 140 degrees.

[0157] It can be understood that with the above angles of the oil collecting ring 42 and the support portion 37, on the one hand, it is convenient for the second pins 51 of the first filter screen 32 and the second filter screen 36 to be inserted into the second slots 46 formed by their corresponding second brackets 41, and at the same time, it can preferably prevent the oil stains from flowing into the smoke collecting hood 31.

[0158] Further, a left internal oil path is formed by arranging the first filter screen 32 at an interval from the support portion 37 at the left end, and a right internal oil path is formed by arranging the second filter screen 36 at an interval from the support portion 37 at the right end.

[0159] Further, as Figure 13 shown, a middle oil path is formed by arranging the baffle 33 at an interval from the first bracket 44.

[0160] Further, the baffle 33 is arranged at an interval from the support portion 37 at the rear end.

[0161] When the oil circuit system of the smoke collecting hood assembly in this embodiment is applied to a range hood and works normally, it can be divided into two parts. One part is the oil circuit outside the smoke collecting hood assembly, and the other part is the oil circuit inside the smoke collecting hood assembly. Among them, the oil circuit outside the smoke collecting hood assembly mainly relies on the side of the air inlet 45 of the smoke collecting hood 31, that is, there is an angle of 10 degrees between the air inlet surface and the horizontal plane. When the oil fume contacts the outer surface of the smoke collecting hood assembly, it condenses to form oil stains. After the oil stains accumulate, they form oil droplets, which are guided into the oil cup 34 at the lowest point of the smoke collecting hood assembly along the inclined plane with an angle of 10 degrees under the action of gravity. The oil circuit inside the smoke collecting hood assembly is such that the oil stains formed on the surface of the first filter screen 32 and the surface of the second filter screen 36 will flow along the four sides of the first filter screen 32 and the four sides of the second filter screen 36 onto the inner surface of the smoke collecting hood assembly under the influence of gravity, and then flow along the inclined plane with an angle of 10 degrees to the lowest point inside the smoke collecting hood assembly, and finally be introduced into the oil cup 34 through the oil leakage hole of the smoke collecting hood assembly. Among them, as Figure 13 and Figure 14 shown, the arrow indicates the flow path of the oil stains. There is a suspended height difference H1 between the built-in first filter screen 32 and the second filter screen 36 and the inner plane of the smoke collecting hood assembly. H1 can be 5 millimeters, that is, as Figure 13 shown, there is a 5-millimeter interval between the first filter screen 32 and the left support portion 37 to form a left internal oil circuit, and there is a 5-millimeter interval between the second filter screen 36 and the left support portion 37 to form a right internal oil circuit. This suspended height difference H1 is to ensure that the condensed oil stains on the surfaces of the built-in first filter screen 32 and the second filter screen 36 can flow into the lowest point inside the smoke collecting hood assembly along the gap of this suspended height difference H1 when flowing into the inside of the smoke collecting hood assembly. As Figure 14 shown, the first pin 61 of the middle baffle 33 is inserted 11 mm into the inside of the smoke collecting hood assembly, and there is a 2-mm gap with the first bracket 44 at the same time. This gap can be used as the passage for the oil stains on the mutually close sides of the first filter screen 32 and the second filter screen 36, that is, the middle oil stains of the smoke collecting hood assembly, so that the oil stains can be directly introduced into the inside of the smoke collecting hood assembly through this gap; at the same time, a support block is arranged to extend backward along the inner edge of the side surface of the rear support portion 37 facing the smoke collecting cavity, and the first pin 61 is lapped on the support block. The support block makes there be a 1.5-mm gap between the first pin 61 and the inside of the smoke collecting hood assembly (that is, the rear side surface of the support portion 37). This is to ensure that the oil stains will not penetrate along the surface of the first pin 61 to the surface of the range hood.

[0162] In the prior art, there are also double-chamber range hoods with an external filter screen, specifically as Figure 2As shown, it includes a main machine component 25' and an existing smoke collecting hood component 22'. There are a left air inlet 21' and a right air inlet 24' of the filter screen on the outside of the existing smoke collecting hood component 22'. The area of the air inlet of the smoke collecting hood component is still insufficient, mainly restricted by the size of the main machine component 25'. Only by adding an oil collecting cup 23' in the middle of a single filter screen to separate the left and right air inlets, it is not a true double-inlet cavity range hood. At the same time, the filter screen is not built into the smoke collecting hood component, but installed on the surface of the air inlet of the smoke collecting hood component, and the condensed oil stains on the surface of the filter screen cannot be introduced into the smoke collecting hood component. Therefore, a product with this structure needs to install an oil collecting cup 23' at the bottom of the filter screen to collect the condensed oil stains on the surface of the filter screen. After long-term use, there will be a lot of condensed oil on the surface of the filter screen. At the same time, there will be a combined gap between the filter screen and the installation surface of the smoke collecting hood component, which is easy to accumulate oil stains and affect the appearance cleanliness of the product.

[0163] In this embodiment, by building the first filter screen 32 and the second filter screen 36 into the smoke collecting hood 31, even if condensed oil accumulates, it will not affect the appearance cleanliness of the product and improves the user experience; and through the improved oil path, the collection of oil stains is realized, reducing the possibility of oil stains entering the smoke collecting hood 31 and improving the cleanliness of the smoke collecting hood component. Further, the combination of the first filter screen 32 and the second filter screen 36 with the baffle 33 increases the negative pressure area and improves the smoking treatment ability of the range hood.

[0164] Further, as Figure 5 shown, both the first filter screen 32 and the second filter screen 36 of the smoke collecting hood component in this embodiment include a bottom wall surface 53 and a side wall surface 54 surrounding the circumference of the bottom wall surface 53. The bottom wall surface 53 is arranged facing the smoke collecting cavity side of the smoke collecting hood 31, and the bottom wall surface is closed. One end of the side wall surface 54 away from the bottom wall surface 53 is used to connect with the support part 37 of the smoke collecting hood 31, and mesh holes for the passage of flue gas are arranged on the side wall surface 54. For example Figure 5Shown is the first filter net 32. At the front end of the side wall surface 54 on the left side of the first filter net 32, there is a second pin 51 connected to the second bracket 41. At the front end of the side wall surface 54 on the right side of the first filter net 32, there is a flange (i.e., a fixed foot), and a screw hole 52 is provided on the flange to be connected to the first bracket 44 of the fixed baffle 33 and the rear support portion 37 through screws. Since a certain guiding and isolating effect is formed between the side surfaces of the first filter net 32 and the second filter net 36, and the space between the right side surface of the first filter net 32 and the left side surface of the second filter net 36 is usually above the baffle 33, under the action of the baffle 33, the first filter net 32 and the second filter net 36, the smoke inlet 45 of the smoke collecting hood 31 is divided into two independent air inlet cavities. After the flue gas passes through the two smoke inlets, it then enters the smoke collecting cavity of the smoke collecting hood 31. The first filter net 32 and the second filter net 36 can independently rectify the flue gas, reducing the mutual interference of the flue gas on both sides and improving the smoke inlet efficiency.

[0165] Specifically, Figure 1 Shown is a schematic diagram of an existing single - cavity range hood with an internal filter net, which includes a main machine assembly 25', an existing smoke collecting hood assembly 22' and a filter oil net 26'. The width L1 between the front side of the air inlet of the main machine assembly 25' of the single - cavity range hood and the edge of the smoke collecting hood 31 is 198 mm, and the cross - width L2 between the left and right sides and the edge of the smoke collecting hood 31 is 257 mm. The formed effective smoke inlet negative pressure area is basically the same as the air inlet of the main machine assembly 25'. As Figure 7 Shown, the air inlet cavity of the smoke collecting hood assembly in this embodiment is divided into two independent air inlet cavities on the left and right by combining two filter nets on the left and right and the middle baffle 33. The edges of the two air inlet cavities on the left and right are very close to the edge of the smoke collecting hood 31. This distributes the negative pressure of the air inlet of the main machine 35 to the four - week edges of the smoke inlet 45 of the smoke collecting hood 31. After distribution, the width L3 between the front side of the smoke inlet 45 of the smoke collecting hood 31 and the edge of the smoke collecting hood assembly is 98 mm, and the width L4 between the left and right sides and the edge of the smoke collecting hood 31 is 82 mm. The negative pressure distribution area of the air inlet greatly shortens the distance from the edge of the smoke collecting hood 31, effectively reducing the risk of oil fume escaping from the periphery of the smoke collecting hood assembly during cooking.

[0166] The following gives several specific implementation manners of the cooperation of the baffle 33, the first filter net 32 and the second filter net 36.

[0167] Embodiment 1:

[0168] For the smoke collecting hood assembly of this embodiment, when the range hood is working normally, as Figures 9 to 12As shown, one side edge of the built-in first filter net 32 and one side edge of the second filter net 36 are inserted into the second slot 46 (i.e., the pin hole) of the second bracket 41 on the smoke collecting hood 31 through the second pin 51. The other side of the first filter net 32 and the other side of the second filter net 36 are fixed to the first bracket 44 and the support portion 37 of the smoke collecting hood assembly with two screws. The first bracket 44 has a limiting block 102 for limiting the first filter net 32 and the second filter net 36, which is used to limit the filter nets in a fixed position when installing the filter nets. As Figures 13 to 15 shown, the baffle 33 is inserted into the first slot 47 (i.e., the pin hole) formed by the first bracket 44 and the smoke collecting hood assembly through the first pin 61, and the other end is fixed by cooperating with the cooperating member of the bead combination 91 on the smoke collecting hood assembly through the bead shaft 62; this structure can facilitate the user to quickly and simply disassemble and assemble when cleaning the range hood, improving the user experience. After the first filter net 32, the second filter net 36 and the baffle 33 are completely installed, a complete double-inlet air chamber structure with independent left and right filtration is formed.

[0169] When the user needs to disassemble and clean the first filter net 32 and the second filter net 36, first directly pull out the bead shaft 62 of the baffle 33 from the bead combination 91 with force by hand, and then directly take out the baffle 33 along the reverse direction of the insertion of the first pin 61, Figure 15 The arrow shown indicates the removal direction of the baffle 33. After removing the baffle 33, use a screwdriver to remove the screws fixing the first filter net 32 and the second filter net 36, and then use hand to move one side of the filter net, for example, taking the first filter net 32 as an example, move the first filter net 32 towards the middle direction (such as Figure 16 and Figure 18 the right-pointing arrow on the left side), so that the second pin 51 of the first filter net 32 is disengaged from the second slot 46 of the second bracket 41, and then move the first filter net 32 towards the inside of the smoke collecting hood 31 (i.e., move backward, such as Figure 16 the downward arrow on the left side and such as Figure 20 the arrow on the upper part), move a certain distance, so that the edge of the first filter net 32 can be smoothly taken out from the smoke inlet 45 of the smoke collecting hood 31, and the other side of the second filter net 36 is taken out in the same way. At this time, the built-in filter net is successfully taken out from the inside of the smoke collecting hood 31 of the range hood. After the user finishes cleaning, just operate in the reverse order during installation. Among them, Figure 16 、 Figure 18 and Figure 20 indicate the moving directions of the first filter net 32 and the second filter net 36 during the disassembly process.

[0170] Embodiment 2

[0171] The installation method of the smoke collecting hood assembly in this embodiment is the same as that of the baffle 33 in the first embodiment, except that the right end of the first filter screen 32 and the left end of the second filter screen 36 are fixed by a fixing plate 193. Specifically, as Figures 21 to 25 shown, when the range hood is working normally, the fixing plate 193 fixes the upper, lower, left, right, front and rear positions of the first filter screen 32 and the second filter screen 36 through the clamping blocks 192. Then, the fixing plate pin 191 at one end of the fixing plate 193 is inserted into the first slot 47 of the first bracket 44, and at the other end, through the screw hole 52 on the fixing plate 193, the smoke collecting hood 31 and the first filter screen 32 (or the second filter screen 36) are completely fixed together with screws, so that one screw can be used to fix one filter screen.

[0172] In this embodiment, the fixing plate 193 can combine the first filter screen 32 and the second filter screen 36 on the left and right sides into a whole. The fixing plate 193 can be used to cover the gap between the filter screens on the left and right sides, collect the oil droplets dripping from the fan assembly (such as the volute), and prevent the oil droplets from splashing outside the range hood, causing pollution to food and the kitchen environment.

[0173] When the user disassembles the first filter screen 32 and the second filter screen 36, first remove the baffle 33 connected by the snap bead of the smoke collecting hood assembly by hand. At this time, the bottom view of the range hood is as Figure 25 shown. Then, the fixing plate 193, the first filter screen 32 and the second filter screen 36 can be disassembled.

[0174] Embodiment 3

[0175] The smoke collecting hood assembly of this embodiment can be improved on the basis of the first and second embodiments. The main improvement is to replace the screws fixing the right end of the first filter screen 32 and the left end of the second filter screen 36 with a snap component 211. Specifically, by using the fixing and locking effect of the snap shell 212 and the snap head 214, the screw fixing holes on the first filter screen 32 and the second filter screen 36 can be changed to rivet a snap shell 212, and a snap head 214 is formed at the position of the support part 37 of the smoke collecting hood 31 and the screw hole 52 for fixing the filter screen of the first bracket 44. That is, as Figures 33 to 35As shown, buckle heads 214 are provided on the support part 37 of the smoke collecting hood assembly and the first bracket 44, and buckle shells 212 are respectively provided at the right end of the first filter net 32 and the left end of the second filter net 36. When the user installs the filter net, the buckle slots 215 of the buckle shells 212 on the filter net can be aligned with the buckle heads 214 on the support part 37 and the first bracket 44, and then directly press down forcefully with the hand to press the buckle heads 214 into the buckle shells 212. At this time, the installation and fixation of the filter net are completed. When the user needs to disassemble the filter net, only need to lift the buckle edge of the filter net with the hand, so that the buckle heads 214 are separated from the buckle shells 212 to loosen the filter net, and then take it out from the smoke inlet 45 of the smoke collecting hood 31 to complete the disassembly of the filter net.

[0176] Embodiment Four

[0177] The smoke collecting hood assembly of this embodiment can improve the fixing method of the baffle 33 on the basis of Embodiment One, Embodiment Two and Embodiment Three. Specifically, as Figures 36 to 38 shown, the baffle 33 does not need to be completely removed from the range hood, but a sliding component 221 is used to fix the baffle 33 in the middle of the smoke inlet 45 of the smoke collecting hood 31, and the baffle 33 can move left and right by using the slide rail 222.

[0178] When the user needs to disassemble the second filter net 36 on the right side, first move the baffle 33 to the left side to increase the size of the second air inlet on the right side of the smoke collecting hood 31. At this time, use a screwdriver to remove the fixing screws or buckle components 211 of the second filter net 36, and then take out the second filter net 36. When the user needs to disassemble the first filter net 32 on the left side, first move the baffle 33 to the right side to increase the size of the first air inlet on the left side of the smoke collecting hood 31, and take out the first filter net 32 in the same way. After the user cleans the filter net, the filter net can be installed on the range hood in the reverse order, and finally move the baffle 33 to the middle position through the slide rail 222 to complete the assembly. In this way, the user can not disassemble the baffle 33, and only need to disassemble the left and right first filter nets 32 and the second filter net 36 for cleaning, reducing the number of parts for the user to clean and optimizing the cleaning of the range hood.

[0179] Embodiment Five

[0180] The smoke collecting hood assembly of this embodiment can improve the fixing method of the baffle 33 on the basis of Embodiment One, Embodiment Two and Embodiment Three. Specifically, as Figures 39 to 42As shown in the figure, between the baffle 33 and the support portion 37 of the smoke collecting hood assembly, a hinge assembly 231 is used to fixedly connect the rear end of the baffle 33 to the inside of the smoke collecting hood assembly. The hinge assembly 231 can control the two hinge pieces 233 to rotate and open at a free angle through a rotating shaft 232. One hinge piece 233 is fixed on the baffle 33, and the other hinge piece 233 is fixed inside the smoke collecting hood assembly. In this way, one end of the baffle 33 is connected to the smoke collecting hood 31, and the other end of the baffle 33 can also form a detachable fixing structure through the cooperation mechanism of the ball catch shaft 62 and the ball catch combination 91 inside the smoke collecting hood 31.

[0181] When the user needs to disassemble the filter screen, first directly pull out the ball catch shaft 62 of the baffle 33 from the cooperation structure of the ball catch combination 91 with force by hand, and then rotate downward along the rotating shaft 232 of the hinge assembly 231 to present the state where the entire baffle 33 is opened. Then take out the first filter screen 32 and the second filter screen 36 for cleaning. When the user finishes cleaning and reinstalls the filter screen according to the reverse steps, only need to fix the ball catch shaft 62 of the baffle 33 in the ball catch combination 91 again by rotating the baffle 33 around the rotating shaft 232 by hand to complete the assembly. In this method, the baffle 33 is always connected to the smoke collecting hood 31, and the baffle 33 can be easily opened and closed for cleaning.

[0182] Embodiment Six

[0183] The smoke collecting hood assembly of this embodiment can improve the fixing method of the baffle 33 on the basis of Embodiment One, Embodiment Two and Embodiment Three. Specifically, as Figures 43 to 45 shown, the baffle 33 is placed on the guide rail 243 through the rotating shaft 244. The rotating shaft 244 passes through the mounting hole on the baffle 33 and is connected to the baffle 33. The gears 241 are fixed at both ends of the rotating shaft 244, the double-headed motor is fixed in the middle of the rotating shaft 244, and the guide rail 243 is fixed on the smoke collecting hood 31. When the double-headed motor works, it drives the rotating shaft 244 to rotate, and the gears 241 on the rotating shaft 244 rotate along with it. The gears 241 are combined with the guide rail 243 through the gear 241 structure. After the gears 241 rotate, they start to move along the extending direction of the guide rail 243, and at the same time drive the baffle 33 to move left and right.

[0184] When the user needs to disassemble the filter screen, the baffle 33 of this embodiment can move left and right under the action of the double-headed motor. Thus, when the baffle 33 moves to the left, the second filter screen 36 can be disassembled, and when the baffle 33 moves to the right, the second filter screen 36 can be disassembled, which is convenient to operate.

[0185] It should be noted that, as in Embodiment Four and Embodiment Six, the baffle 33 is slidably arranged on the smoke collecting hood 31. The left and right movement of the baffle 33 can change the sizes of the first air inlet and the second air inlet. For example, when the baffle 33 moves from the middle of the smoke collecting hood 31 to the left, the air inlet area of the second air inlet can be increased. Thus, the sliding of the baffle 33 can be used to adjust the air inlet areas of the two air inlets as needed to achieve a better oil fume suction effect.

[0186] In summary, the smoke collecting hood assembly of this embodiment has a double air inlet cavity with a detachable built-in filter screen, which can effectively solve the problems of poor smoking effect and difficult disassembly of the built-in filter screen, and at the same time solve the problem that the outer surface of the range hood is prone to dirt.

[0187] This embodiment also provides a range hood, which includes a main body 35 and the smoke collecting hood assembly provided in this embodiment. The main body 35 includes a box body and a fan assembly, and the box body is connected to the smoke collecting hood assembly.

[0188] The range hood of this embodiment has the same beneficial effects as the smoke collecting hood assembly provided in this embodiment.

[0189] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A smoke collecting hood assembly, characterized in that, It includes a smoke collecting hood (31), a baffle (33) is arranged at the smoke inlet (45) of the smoke collecting hood (31), the baffle (33) is movably connected to the smoke collecting hood (31) or the baffle (33) is detachably connected to the smoke collecting hood (31), and the baffle (33) divides the smoke inlet (45) of the smoke collecting hood (31) into a first air inlet and a second air inlet; A first filter net (32) is detachably connected corresponding to the first air inlet between one side of the smoke collecting hood (31) where the first air inlet is located and the baffle (33), and a second filter net (36) is detachably connected corresponding to the second air inlet between one side of the smoke collecting hood (31) where the second air inlet is located and the baffle (33). The size of the first filter net (32) is larger than the size of the first air inlet, and the size of the second filter net (36) is larger than the size of the second air inlet; The smoke collecting hood (31) is provided with a support part (37) extending inwards towards the center of the smoke inlet (45) on the circumference of the smoke inlet (45). Two ends of the baffle (33) are respectively arranged on the support part (37) at the front side of the smoke inlet (45) and the support part (37) at the rear side of the smoke inlet (45).

2. The smoke collecting hood assembly according to claim 1, characterized in that, The first end of the baffle (33) is inserted into the corresponding support part (37), and the second end of the baffle (33) is detachably connected to the corresponding support part (37) through a first fixing member; One of the front end and the rear end of the baffle (33) is the first end of the baffle (33), and the other is the second end of the baffle (33).

3. The smoke collecting hood assembly according to claim 2, characterized in that, A first bracket (44) is arranged on the support part (37) at the rear side. A first slot (47) is formed between the first bracket (44) and the support part (37) at the rear side. A first insertion foot (61) is arranged at the rear end of the baffle (33), and the first insertion foot (61) is inserted into the first slot (47). The front end of the baffle (33) is detachably connected to the support part (37) at the front end through a first fixing member.

4. The smoke collecting hood assembly according to claim 2 or 3, characterized in that, The second end of the baffle (33) is connected to the corresponding support part (37) through a bead combination (91), a screw or a buckle.

5. The smoke collecting hood assembly according to claim 3, characterized in that, Limiting blocks (102) for defining the installation positions of the first filter net (32) and the second filter net (36) are respectively arranged on the left and right sides of the first bracket (44).

6. The smoke collecting hood assembly according to claim 1, characterized in that, The baffle (33) is slidably connected to the support part (37), and the baffle (33) can reciprocally slide in the left - right direction of the smoke collecting hood (31).

7. The smoke collecting hood assembly according to claim 6, characterized in that, The baffle (33) is connected to the support part (37) through a sliding component (221).

8. The smoke collecting hood assembly according to claim 7, characterized in that, The sliding component (221) includes a slide rail seat (225), a slide rail (222) and a slider (223); One of the slide rail base (225) and the slide rail (222) is fixedly connected to the support portion (37), and the other of the slide rail base (225) and the slide rail (222) is fixedly connected to the baffle (33). The slide rail base (225) is provided with a chute along the left - right direction of the smoke collecting hood (31). The slider (223) is fixedly connected to the slide rail base (225) and corresponds to the chute. The slide rail (222) extends along the left - right direction of the smoke collecting hood (31), and the slide rail (222) is slidably connected in the chute. The slider (223) is slidably connected to the slide rail (222).

9. The smoke collecting hood assembly according to claim 8, characterized in that, A ball (224) is provided between the slider (223) and the slide rail (222); and / or; A ball (224) is provided between the slide rail (222) and the slide rail base (225).

10. The smoke collecting hood assembly according to claim 6, characterized in that, Guide rails (243) are respectively provided on the front - end support portion (37) and the rear - end support portion (37). Rolling members are respectively connected to the front side and the rear side of the baffle (33). The rolling members are arranged on the guide rails (243), and the rolling members can roll relative to the guide rails (243) to drive the baffle (33) to slide left and right.

11. The smoke collecting hood assembly according to claim 10, characterized in that, The rolling member is connected to a driving mechanism, and the driving mechanism is installed on the baffle (33).

12. The smoke collecting hood assembly according to claim 11, characterized in that, The rolling member includes a rotating shaft (244) and a gear (241) connected to the rotating shaft (244). The rotating shaft (244) is rotatably installed on the baffle (33). The gear (241) is fixedly connected to the rotating shaft (244). The guide rail (243) is a rack, and the gear (241) meshes with the rack.

13. The smoke collecting hood assembly according to claim 12, characterized in that, The driving mechanism includes a double - head output motor (242). The rotating shafts (244) on the front side of the baffle (33) and the rear side of the baffle (33) are coaxially arranged. The two output ends of the double - head output motor (242) are respectively connected to the rotating shaft (244) on the front side of the baffle (33) and the rotating shaft (244) on the rear side of the baffle (33).

14. The smoke collecting hood assembly according to claim 1, characterized in that, The number of the baffles (33) is multiple. The multiple baffles (33) can be stacked in sequence along the up - down direction of the smoke collecting hood (31), and any two of the multiple baffles (33) can be arranged in sequence along the left - right direction of the smoke collecting hood (31).

15. The smoke collecting hood assembly according to claim 1, characterized in that, The first end of the baffle (33) is hinged to the corresponding - end support portion (37), and the second end of the baffle (33) is detachably connected to the corresponding - end support portion (37); One of the front end and the rear end of the baffle (33) is the first end of the baffle (33), and the other is the second end of the baffle (33).

16. The smoke collecting hood assembly according to claim 15, characterized in that, The rear end of the baffle (33) is hinged to the rear - end support portion (37) through a hinge assembly (231), and the front end of the baffle (33) is detachably connected to the front - end support portion (37) through a buckle.

17. The smoke collecting hood assembly according to any one of claims 1 - 3 and any one of claims 5 - 16, characterized in that, The left side of the first filter screen (32) is inserted into the support portion (37) at the left end, and the right side of the second filter screen (36) is inserted into the support portion (37) at the right end. The right side of the first filter screen (32) and the left side of the second filter screen (36) are fixedly connected to the support portion (37) at the front end and / or the support portion (37) at the rear end at the corresponding positions by a second fixing member.

18. The smoke collecting hood assembly according to claim 17, characterized in that, Second brackets (41) are provided on the rear side surfaces of the support portion (37) at the left end and the support portion (37) at the right end facing the smoke collecting cavity of the smoke collecting hood (31). The second brackets (41) and the rear side surfaces of the support portion (37) form second slots (46). Second pins (51) are provided on the left side of the first filter screen (32) and the right side of the second filter screen (36) respectively, and the second pins (51) are inserted into the second slots (46) at the corresponding ends.

19. The smoke collecting hood assembly according to claim 18, characterized in that, A guiding portion (101) extends from the inner edge of the second bracket (41) towards the side where the smoke collecting cavity is located. The guiding portion (101) is inclined gradually closer to the center of the smoke collecting hood (31) from the end close to the second bracket (41) to the end far from the second bracket (41).

20. The smoke collecting hood assembly according to claim 17, characterized in that, The second fixing member is a screw or a buckle assembly (211).

21. The smoke collecting hood assembly according to claim 17, characterized in that, The second fixing member is a buckle assembly (211). The buckle assembly (211) includes a buckle shell (212) and a buckle head (214). A buckle groove (215) is provided on the buckle shell (212). A guiding hole is provided on the side wall of the buckle groove (215) near the notch position. An elastic member (213) is provided in the guiding hole. One end of the elastic member (213) facing the buckle groove (215) can extend into the buckle groove (215), and the elastic member (213) can elastically deform in a direction perpendicular to the direction from the notch to the bottom of the groove. The buckle head (214) includes a head and a limiting portion (216) fixedly connected. The limiting portion (216) is provided at the end of the head far from the notch. The head faces the notch, and the head can be inserted into the notch and is fixedly connected to the buckle shell (212) under the action of the elastic member (213).

22. The smoke collecting hood assembly according to claim 21, characterized in that, The cross section of the buckle groove (215) is arranged in a "U" shape, and the cross section of the buckle head (214) is arranged in an "Ω" shape. The side edges of the "Ω" shape of the buckle head (214) form the limiting portion (216), and the protruding portion of the "Ω" shape of the buckle head (214) forms the head. The radial width of the head end of the head close to the buckle shell (212) is greater than the radial width of the root of the head far from the buckle shell (212).

23. The smoke collecting hood assembly according to claim 22, characterized in that: The number of the elastic members (213) is multiple, and the multiple elastic members (213) are arranged at intervals in the circumferential direction of the buckle groove (215).

24. The smoke collecting hood assembly according to any one of claims 1 - 3 or any one of claims 5 - 16, characterized in that, The left side of the first filter screen (32) is inserted into the support part (37) at the left end, the right side of the second filter screen (36) is inserted into the support part (37) at the right end, the right side of the first filter screen (32) and the left side of the second filter screen (36) are detachably connected by a fixing plate (193), the rear end of the fixing plate (193) is inserted into the support part (37) at the rear end, and the front end of the fixing plate (193) is fixedly connected to the support part (37) at the front end by a third fixing member.

25. The smoke collecting hood assembly according to claim 24, characterized in that, The third fixing member is a screw; and / or; The third fixing member includes a clamping block (192) and a fixing pin (195). The clamping block (192) is arranged at a position close to the rear end of the plate surface of the fixing plate (193). A clamping groove (194) is formed between the clamping block (192) and the plate surface of the fixing plate (193). The fixing pins (195) are respectively arranged on the right side of the first filter screen (32) and the left side of the second filter screen (36), and the fixing pins (195) are inserted into the clamping groove (194).

26. The smoke collecting hood assembly according to any one of claims 1 - 3 or any one of claims 5 - 16, characterized in that, An oil collecting ring (42) is bent towards the rear end of the smoke collecting cavity close to the smoke collecting hood (31) along the inner edge of the support part (37). The first filter screen (32) and the second filter screen (36) are connected to the support part (37) on one side of the oil collecting ring (42) far away from the smoke inlet (45) of the smoke collecting hood (31).

27. The smoke collecting hood assembly according to claim 26, characterized in that, The oil collecting ring (42) is arranged obliquely gradually approaching the inside of the smoke collecting hood (31) in the direction from the front end to the rear end.

28. The smoke collecting hood assembly according to claim 27, characterized in that, The included angle between the rear side surface of the support part (37) facing the smoke collecting cavity and the oil collecting ring (42) is 120 degrees - 160 degrees.

29. The smoke collecting hood assembly according to claim 27, characterized in that, A space is provided between the first filter screen (32) and the support part (37) at the left end to form a left internal oil path, and a space is provided between the second filter screen (36) and the support part (37) at the right end to form a right internal oil path; and / or; A space is provided between the baffle plate (33) and the first bracket (44) to form a middle oil path; and / or; A space is provided between the baffle plate (33) and the support part (37) at the rear end.

30. The smoke collecting hood assembly according to claim 26, characterized in that, On one side of the smoke inlet (45) of the smoke collecting hood (31), it is gradually inclined backward from the upper end to the lower end. The first filter screen (32) and the second filter screen (36) are gradually inclined backward from the upper end to the lower end. An oil cup (34) is arranged at the rear end of the smoke collecting hood (31).

31. The smoke collecting hood assembly according to claim 30, characterized in that, The inclination angle of one side of the smoke inlet (45) of the smoke collecting hood (31) relative to the horizontal plane is 5 - 15 degrees.

32. An oil fume suction machine, characterized in that, Including the smoke collecting hood assembly according to any one of claims 1 - 31.

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