Exhaust fume collecting hood, exhaust fume collecting device and oil fume suction equipment

Abstract

The utility model belongs to the technical field of kitchen electric appliances, and discloses an exhaust fume collecting hood, an exhaust fume collecting device and oil fume suction equipment. The smoke collecting hood comprises a smoke collecting cavity plate and a side plate which are arranged in a split mode, the smoke collecting cavity plate comprises a smoke inlet plate and a front end portion, and the front end portion is connected with the front side edge of the smoke inlet plate. The side plates are respectively arranged on the edges of the left side and the right side of the smoke collecting cavity plate and are respectively connected with the smoke inlet plate and the front end part; and the edge of the part, connected with the side plate and / or the front end part, of the smoke inlet plate extends along a curve. The exhaust fume collecting hood is arranged to be of a split structure, the problems of cracking and wrinkling caused by the fact that an integrally-formed flanging is adopted at the arc modeling position can be avoided, the reliability of the exhaust fume collecting hood can be improved, the appearance consistency is guaranteed, and the product competitiveness is improved.

Description

Technical Field

[0001] This utility model relates to the field of kitchen appliance technology, and in particular to a fume hood, a fume collection device, and an oil fume extraction device. Background Technology

[0002] As people's living standards improve, they have higher requirements for the smoke extraction effect of range hoods. At the same time, they hope that range hoods can adapt their functions according to the specific usage conditions, so that the needs for smoke extraction effect or appearance can be balanced accordingly.

[0003] To meet the above requirements, current range hoods often feature rounded edges on the front of the smoke collection hood to improve appearance and prevent scratches to users. If the smoke collection hood uses a one-piece structure, such as a single-piece flanged edge forming the head, issues like edge cracking and wrinkling may occur, affecting the overall aesthetics and product competitiveness. Utility Model Content

[0004] The purpose of this utility model is to provide a smoke hood, a smoke collection device, and an oil fume extraction equipment that can solve the problems of cracking and wrinkling on the flanges.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A smoke collection hood includes a separately configured smoke collection chamber plate and a side plate. The smoke collection chamber plate includes a smoke inlet plate and a front end portion, and the front end portion is connected to the front edge of the smoke inlet plate.

[0007] The smoke collection chamber plate is provided with side plates on its left and right sides, and the side plates are respectively connected to the smoke inlet plate and the front end.

[0008] Wherein, the edge of the smoke inlet plate that connects with the side plate and / or the front end extends along a curve.

[0009] As an alternative to the above-mentioned smoke hood, the two ends of the front edge of the smoke inlet plate are provided with first curved edges, the two ends of the front end extend to the first curved edges to form rounded corners, and the connection position between the side plate and the front end is located behind the first curved edges.

[0010] And / or, the left and right edges of the smoke inlet plate are provided with second curved edges, which are connected to the side plate.

[0011] As an alternative to the aforementioned smoke hood, the front end portion includes:

[0012] The front panel includes a front panel body, and curved panels are respectively connected to the left and right ends of the front panel body. The front panel body and the smoke inlet plate are integrally formed, and the curved panels are welded and fixed to the edge of the first curved edge.

[0013] The top plate is integrally formed with the front plate body, and the two ends of the top plate are welded and fixed to the edges of the curved panel.

[0014] As an alternative to the above-mentioned smoke hood, the curved panel is located outside the top plate and the smoke inlet plate, and the welding positions of the curved panel and the smoke inlet plate are both located on the inner surface of the curved panel.

[0015] As an alternative to the above-mentioned smoke hood, the side plate is located outside the smoke inlet plate, and the side plate covers the side end face of the smoke inlet plate;

[0016] And / or, the inner surface of the side plate includes a first welding plane that is fitted and welded to the smoke inlet plate;

[0017] And / or, the front end face of the side plate is welded and fixed to the rear end face of the front end portion, and both the front end face of the side plate and the rear end face of the front end portion are planar.

[0018] As an alternative to the aforementioned smoke hood, the smoke inlet plate is provided with a window, and at least one partition beam is provided inside the window, the partition beam dividing the window into at least two smoke inlets.

[0019] As an optional solution for the above-mentioned smoke hood, the smoke inlet plate includes a smoke inlet plate body and an air guide plate. The smoke inlet plate body is provided with the window, the air guide plate is arranged around the circumference of the window, the partition beam is connected to the air guide plate, and the air guide plate extends from the smoke inlet plate into the interior of the smoke hood.

[0020] The plane on which the main body of the smoke inlet plate is located is the first plane, the plane on which the front surface of the partition beam is located is the second plane, and the plane on which the rear end of the air guide plate is located is the third plane. The first plane, the second plane, and the third plane are arranged in order from front to back.

[0021] As an optional embodiment of the above-mentioned smoke hood, the smoke inlet plate is provided with a smoke inlet, and the smoke hood also includes a filter screen assembly connected to the smoke inlet plate and located at the smoke inlet. The top end of the front surface of the filter screen assembly is located outside the smoke inlet plate, and the bottom end of the front surface of the filter screen assembly is located inside the smoke inlet plate.

[0022] A smoke collection device, comprising:

[0023] The aforementioned smoke collection hood is provided with a smoke inlet and a top opening at the top.

[0024] A flap assembly, comprising a flap and a hinge structure, wherein the hinge structure is disposed on the smoke collection hood and connected to the flap, so that the flap can rotate relative to the smoke collection hood to open or close the smoke inlet;

[0025] A drive assembly is detachably mounted on the top surface of the smoke collection hood, and the output end of the drive assembly is detachably connected to the flap to drive the flap to rotate.

[0026] The top cover is detachably connected to the smoke collection hood and is used to cover the top opening. The top cover covers the connection position between the drive assembly and the smoke collection hood.

[0027] A fume extraction device, comprising:

[0028] chassis;

[0029] The smoke hood or the smoke collection device described above is located at the bottom of the housing.

[0030] The beneficial effects of this utility model are:

[0031] The smoke hood provided by this utility model, by setting the smoke hood as a split structure, can avoid the cracking and wrinkling problems that occur when the arc shape is made of one-piece molding and flanged, which is conducive to improving the reliability of the smoke hood, ensuring the consistency of appearance, and improving product competitiveness.

[0032] The smoke collection device provided by this utility model uses the above-mentioned smoke collection hood, which can avoid appearance defects such as cracking and wrinkling.

[0033] The hinge structure and the flap are detachably connected, as are the output ends of the drive assembly. When maintenance is required, the flap can be separated from both the hinge structure and the output end of the drive assembly, allowing it to be removed from the entire machine. This reduces the number of parts that need to be disassembled, thus improving ease of maintenance.

[0034] The fume extraction equipment provided by this utility model adopts the above-mentioned fume hood or fume collection device, which has good appearance consistency and good product competitiveness. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the structure of the fume extraction device provided by this utility model;

[0036] Figure 2 This is a structural diagram of the fume extraction device provided by this utility model without the flap assembly;

[0037] Figure 3 This is a cross-sectional view of the fume extraction device provided by this utility model when the flap is in the open state;

[0038] Figure 4 This is a schematic diagram of the structure of the smoke collection hood provided by this utility model;

[0039] Figure 5 This is a first exploded view of the smoke hood provided by this utility model;

[0040] Figure 6 This is a schematic diagram of the smoke collection chamber plate provided by this utility model when it is not welded;

[0041] Figure 7 yes Figure 6 A magnified view of a section at point B in the middle;

[0042] Figure 8 This is a partial structural diagram of the front end provided by this utility model;

[0043] Figure 9 This is the second exploded view of the smoke hood provided by this utility model;

[0044] Figure 10 This is a cross-sectional view of the smoke hood provided by this utility model;

[0045] Figure 11 This is a cross-sectional view of the smoke collection device provided by this utility model;

[0046] Figure 12 yes Figure 11 A magnified view of a section at point C;

[0047] Figure 13 yes Figure 11 A magnified view of a section at point D;

[0048] Figure 14 This is a structural schematic diagram of the flap assembly and drive assembly provided by this utility model;

[0049] Figure 15 This is a schematic diagram of the structure of the drive component provided by this utility model;

[0050] Figure 16 This is a structural schematic diagram of the first base body provided by this utility model;

[0051] Figure 17 This is a schematic diagram of the structure of the second seat provided by this utility model;

[0052] Figure 18 This is a perspective view of the smoke collection device provided by this utility model;

[0053] Figure 19 This is a schematic diagram of the structure of the fume extraction device provided by this utility model when the flap is in the open state;

[0054] Figure 20 yes Figure 19A magnified view of a section at point A in the middle;

[0055] Figure 21 This is a schematic diagram of the smoke collection device provided by this utility model;

[0056] Figure 22 This is a first structural schematic diagram of the hinge structure provided by this utility model;

[0057] Figure 23 This is a second structural schematic diagram of the hinge structure provided by this utility model;

[0058] Figure 24 This is a schematic diagram of the structure of the hinge shaft provided by this utility model;

[0059] Figure 25 This is a schematic diagram of the third structure of the hinge structure provided by this utility model.

[0060] In the picture:

[0061] 1000. Smoke collection device; 100. Smoke collection hood; 110. Smoke collection chamber plate; 111. Smoke inlet plate; 1111. Smoke inlet plate body; 11111. Smoke inlet; 11112. First clearance hole; 11113. Second clearance hole; 1112. Air guide plate; 1113. Partition beam; 1114. First curved edge; 1115. Second curved edge; 1116. First fixing part; 1117. Second fixing part; 112. Front end; 1121. Front plate; 11211. Front plate body; 11212. Curved panel; 1122. Top plate; 1123. Third welding plane; 120. Side plate; 121. Second welding plane; 122. First fixing flange; 130. Back plate; 131. Second fixing flange; 200. Flip plate assembly; 210. Flip plate; 211, Flip plate body; 212, First support; 213, Fixing frame; 220, Hinge structure; 221, Hinge seat; 222, Hinge shaft; 2221, Anti-slip pattern; 223, Hinge rod; 2231, Arc rod; 2232, Fixing rod; 300, Drive assembly; 310, Drive component; 320, Drive fixing seat; 321, First seat body; 3211, Reinforcing structure; 3212, Through hole; 3213, Threaded hole; 3214, Insertion hole; 3215, First rivet hole; 322, Second seat body; 3221, Second seat body body; 3222, Second support; 3223, Second rivet hole; 3224, Pin hole; 400, Filter assembly; 2000, Housing; 3000, Oil cup; 4000, Fan assembly. Detailed Implementation

[0062] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0063] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0064] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0065] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0066] This embodiment provides a fume extraction device with fume extraction function. The fume extraction device can be a range hood, integrated stove, integrated range hood, or other household appliances with fume extraction function.

[0067] like Figures 1-3As shown, the fume extraction device includes a housing 2000, a smoke collection device 1000, a fan assembly 4000, and an oil cup 3000. A smoke exhaust channel is formed within the housing 2000, and the fan assembly 4000 is disposed within the housing 2000. The smoke collection device 1000 is located at the bottom of the housing 2000 and communicates with it, and has a smoke inlet 11111 on it. The oil cup 3000 is located at the bottom of the smoke collection device 1000. When the fan assembly 4000 operates, it creates a negative pressure within the housing 2000, drawing oil fumes from outside the fume extraction device into the smoke exhaust channel through the smoke inlet 11111. As the oil fumes pass through the smoke inlet 11111, they are filtered to remove oil and impurities. The filtered airflow is then discharged through the smoke exhaust channel, and the filtered oil and impurities are collected in the oil cup 3000, thus achieving the purpose of purifying the indoor environment.

[0068] To achieve oil fume filtration, in some embodiments, the smoke collection device 1000 includes a smoke collection hood 100, which is connected to the bottom end of the housing 2000. The smoke collection hood 100 is provided with a smoke inlet 11111, and a filter screen assembly 400 is provided at the smoke inlet 11111, so that the oil fumes entering the smoke collection hood 100 through the smoke inlet 11111 are filtered by the filter screen assembly 400, thereby achieving the effect of purifying the oil fumes.

[0069] Since users' stoves are generally equipped with two burners, in order to improve the fume extraction effect, the fume hood 100 is provided with two fume inlets 11111. The two fume inlets 11111 are spaced apart in the left and right direction. Each fume inlet 11111 is equipped with a filter screen assembly 400. Each fume inlet 11111 corresponds to one burner to prevent the fumes from escaping and improve the fume extraction effect.

[0070] It should be noted here that the left and right directions refer to the left and right directions when the user is facing the range hood. When the user is facing the range hood, the direction in which the user is located is the front side of the range hood, and the opposite side is the back side of the range hood.

[0071] To improve the fume extraction effect and aesthetics of the fume extraction equipment, in some embodiments, the fume hood 100 further includes a flap assembly 200 and a drive assembly 300. The flap assembly 200 includes a flap 210 and a hinge structure 220. The hinge structure 220 connects the flap 210 and the fume hood 100, allowing the flap 210 to move relative to the fume hood 100 to open or close the smoke inlet 11111. The drive assembly 300 is disposed on the fume hood 100, and its output end is connected to the flap 210 to drive the flap 210 to move, thereby automatically opening and closing the smoke inlet 11111 and improving the intelligence level of the fume extraction equipment.

[0072] In some embodiments, hinge structures 220 are connected to both ends of the flap 210 in the left and right directions to improve the stability of the flap 210 position and avoid the left and right ends of the flap 210 being inconsistent during the movement, thereby ensuring that the flap 210 can smoothly open or close the smoke inlet 11111.

[0073] In some embodiments, such as Figure 4 As shown, the smoke hood 100 is a hood structure, including a front surface, a bottom surface, opposite left and right side surfaces and a rear surface. The top opening of the smoke hood 100 is connected to the housing 2000, and the smoke inlet 11111 is located on the bottom surface of the smoke hood 100.

[0074] In some embodiments, the bottom surface of the fume hood 100 is inclined from top to bottom and rearward, and the fume inlet 11111 is provided on the bottom surface of the fume hood 100, so that the fume inlet 11111 can not only draw oil fumes from the side during cooking, but also block and draw oil fumes escaping to the top, thereby improving the oil fume extraction effect.

[0075] The above-described structural design results in the smoke hood 100 having a low front end and a high rear end. Because the front end of the smoke hood 100 is close to the user, there is a possibility of contact or collision with the user during use of the range hood. To avoid scratching the user and improve the appearance of the smoke hood 100, in some embodiments, at least the front end of the smoke hood 100 has a rounded shape. This improves the appearance while preventing scratches and enhancing user safety.

[0076] The existing smoke hood 100 is generally formed with an integrated flange structure. If an arc shape is set, problems such as flange cracking and wrinkling will occur, which will seriously affect the product's appearance and competitiveness.

[0077] To address the above problems, in some embodiments, such as Figure 5 As shown, the smoke hood 100 includes a separately configured smoke collection chamber plate 110 and side plates 120. The smoke collection chamber plate 110 includes a smoke inlet plate 111 and a front end portion 112, with the front end portion 112 connected to the front edge of the smoke inlet plate 111. Side plates 120 are respectively provided on the left and right edges of the smoke collection chamber plate 110, and the side plates 120 are respectively connected to the smoke inlet plate 111 and the front end portion 112. The edges of the smoke inlet plate 111 connected to the side plates 120 and / or the edges of the smoke inlet plate 111 connected to the front end portion 112 extend along a curve to form an arc shape. By configuring the smoke hood 100 as a separate structure, the cracking and wrinkling problems that occur when using a one-piece molded flange at the arc shape can be avoided, which helps to improve the reliability of the smoke hood 100, ensure appearance consistency, and enhance product competitiveness.

[0078] Wherein, the part of the edge of the smoke inlet plate 111 that connects to the side plate 120 extends along a curve, meaning that the boundary contour line formed by the connection of the smoke inlet plate 111 and the side plate 120 includes a curved segment; the part of the edge of the smoke inlet plate 111 that connects to the front end portion 112 extends along a curve, meaning that the boundary contour line formed by the connection of the smoke inlet plate 111 and the front end portion 112 includes a curved segment.

[0079] In some embodiments, such as Figure 4 As shown, the smoke inlet plate 111 includes a first curved edge 1114, which is located at the left and right ends of the front edge of the smoke inlet plate 111. The first curved edge 1114 is connected to the front end 112 to form a rounded corner structure in the front end 112, so as to avoid sharp corners at the front end of the smoke collection hood 100, thereby avoiding bumps and scratches to users, ensuring user safety, and improving the appearance.

[0080] To ensure that the smoke hood 100 is free from cracks or wrinkles, in some embodiments, combined with Figure 4 and Figure 5 As shown, the connection between the side plate 120 and the front end 112 is located behind the first curved edge 1114. That is to say, the rounded corner is formed only by the front end 112, avoiding the side plate 120 from participating in the formation of the rounded corner, thereby avoiding wrinkles and cracks at the rounded corner position, so as to ensure the quality and appearance of the smoke hood 100.

[0081] To improve the connection quality and appearance at rounded corners, in some embodiments, such as Figure 6 and Figure 7 As shown, the front end portion 112 includes a front plate 1121 and a top plate 1122. The front plate 1121 includes a front plate body 11211 and a curved panel 11212. The curved panels 11212 are respectively connected to the left and right ends of the front plate body 11211. The front plate body 11211 is integrally formed with the smoke inlet plate 111, and the curved panels 11212 are welded and fixed to the edge of the first curved edge 1114. The top plate 1122 is integrally formed with the front plate body 11211, and the two ends of the top plate 1122 extend and are welded and fixed to the edge of the curved panels 11212. The front plate 1121 and the top plate 1122 form rounded corners through their cooperation.

[0082] In the above configuration, the curved panel 11212 with rounded corners, the smoke inlet plate 111, and the top plate 1122 are all separate structures. They are fixedly connected by welding, which can avoid the cracking and wrinkling problems that exist when forming a single piece with a flange. This helps to ensure the firmness, reliability, and appearance consistency of the structure at the rounded corners after welding.

[0083] To improve appearance, in some embodiments, such as Figure 8As shown, the curved panel 11212 is located on the outside of the smoke inlet plate 111 and the top plate 1122. The welding positions of the curved panel 11212 and the smoke inlet plate 111, and the welding positions of the curved panel 11212 and the top plate 1122 are all located on the inner surface of the curved panel 11212 to hide welding marks and ensure the appearance quality of the smoke collection hood 100 after welding.

[0084] In some embodiments, the height of the curved panel 11212 is greater than the height of the front panel body 11211, so that the upper and lower ends of the curved panel 11212 can cover the smoke inlet plate 111 and the top plate 1122 at corresponding positions. Specifically, the curved panel 11212 completely covers the side end face of the first curved edge 1114 on the smoke inlet plate 111, so that the side end face of the first curved edge 1114 is not visible from the outside, thereby improving the uniformity of appearance; the curved panel 11212 completely covers the side end face of the top plate 1122 at the corresponding position, so that the side end faces of the top plate 1122 and the first curved edge 1114 are not visible from the outside, thereby improving the uniformity of appearance.

[0085] It should be noted here that the side end face where the first curved edge 1114 is located refers to the surface of the smoke inlet plate 111 extending along the thickness direction. This surface is approximately parallel to the vertical direction and faces the curved panel 11212.

[0086] In some embodiments, the welding position of the curved panel 11212 and the smoke inlet plate 111 is located above the smoke inlet plate 111, so that the welding marks are wrapped inside the rounded corner structure and will not be exposed, which is beneficial to improving the appearance.

[0087] In some embodiments, the welding position of the curved panel 11212 and the top plate 1122 is located below the top plate 1122, so that the welding marks are wrapped inside the rounded corner structure and will not be exposed, which is beneficial to improving the appearance.

[0088] In some embodiments, reference is made to Figure 4 and Figure 5 As shown, the smoke inlet plate 111 is provided with a second curved edge 1115, which is located on the left and right sides of the smoke inlet plate 111 and is connected to the side plate 120. By setting the side plate 120 and the smoke inlet plate 111 as separate structures, it is possible to avoid integrally molding the side plate 120 at the position of the second curved edge 1115, thereby avoiding problems such as cracking and wrinkling at the position of the second curved edge 1115, and ensuring connection quality and appearance quality.

[0089] In some embodiments, the side plate 120 is located outside the smoke inlet plate 111. The side plate 120 can cover the side end face of the smoke inlet plate 111 so that the outside of the side end face of the smoke inlet plate 111 is not visible. Only the bottom surface of the smoke inlet plate 111 is the appearance surface, which is beneficial to improving the appearance of the smoke collection hood 100.

[0090] It should be noted that the side end face of the smoke inlet plate 111 refers to the surface of the smoke inlet plate 111 that extends along the thickness direction. This surface is approximately parallel to the vertical direction and faces the side plate 120. In other words, the side end face refers to the plate surface of the smoke inlet plate 111 facing the left or right side.

[0091] To ensure welding effect, in some embodiments, the inner surface of the side plate 120 includes a first welding plane that is fitted and welded to the smoke inlet plate 111. By setting the first welding plane, the welding difficulty can be reduced, the welding quality can be improved, and it is also beneficial for grinding or ensuring surface flatness.

[0092] In some embodiments, the front end face of the side plate 120 is welded to the rear end face of the front end 112. Both the front end face of the side plate 120 and the rear end face of the front end 112 are flat to reduce welding difficulty and ensure welding quality and appearance quality of the connection.

[0093] Combination Figure 5 and Figure 9 As shown, the front end face of the side plate 120 is the second welding plane 121, and the rear end face of the front end 112 is the third welding plane 1123. The third welding plane 1123 and the second welding plane 121 are the same in size and shape. The second welding plane 121 and the third welding plane 1123 are attached and welded together. The welding marks after welding can be processed by grinding and other processes to ensure the appearance quality.

[0094] In some embodiments, the side plate 120, the smoke inlet plate 111, and the front end 112 can be fixed by laser welding, which has little impact on the structure around the welding position and results in good welding quality.

[0095] In some embodiments, the smoke hood 100 further includes a back plate 130, which can be separately disposed from the side plate 120 and the smoke collection chamber plate 110, and the back plate 130 is connected to the side plate 120 and the smoke collection chamber plate 110 respectively.

[0096] Combination Figure 4 and Figure 5 As shown, in some embodiments, the smoke inlet plate 111 is provided with a window, and at least one partition beam 1113 is provided inside the window. The partition beam 1113 divides the window into at least two smoke inlets 11111 to ensure the needs of multiple burners. By opening a window and dividing the window into at least two smoke inlets 11111 through the partition beam 1113, a design of a single cavity with multiple smoke inlets 11111 can be achieved. This not only provides a larger cavity volume but also ensures that smoke enters through at least two smoke inlets 11111, thereby increasing smoke extraction efficiency while ensuring the smoke collection volume.

[0097] In some embodiments, the smoke inlet plate 111 includes a smoke inlet plate body 1111 and an air guide plate 1112. A window is disposed on the smoke inlet plate body 1111, and the air guide plate 1112 is arranged circumferentially around the window. A partition beam 1113 is disposed within the air guide plate 1112. The partition beam 1113 and the inner wall of the air guide plate 1112 form a smoke inlet 11111. The air guide plate 1112 extends from the smoke inlet plate 111 into the smoke collection hood 100. By providing the air guide plate 1112, the depth of the smoke inlet 11111 can be increased, and the airflow can be guided through the smoke inlet 11111 into the smoke collection chamber, which has the function of collecting and guiding oil fumes, thus improving the performance of the range hood.

[0098] In some embodiments, the air guide plate 1112 extends obliquely from front to back toward the center of the window, so that the cross-sectional area of ​​the space enclosed by the air guide plate 1112 gradually decreases from front to back. The oil fumes entering the smoke collection hood 100 through the smoke inlet 11111 gather toward the center of the smoke collection hood 100, which is beneficial for entering the smoke exhaust channel inside the housing 2000 under the action of the fan assembly 4000, thereby improving the smoke exhaust effect.

[0099] In some embodiments, such as Figure 10 As shown, the plane containing the main body of the smoke inlet plate 1111 is the first plane a, the plane containing the front surface of the partition beam 1113 is the second plane b, and the plane containing the rear end of the air guide plate 1112 is the third plane c. The first plane a, the second plane b, and the third plane c are arranged sequentially from front to back. When the fan assembly 4000 starts, the fumes flow towards the smoke inlet 11111 under the suction of negative pressure. They first enter the space between the first plane a and the second plane b. This space is relatively large and does not have a partition beam 1113, which allows for better smoke collection. Then, the fumes are diverted by the partition beam 1113 and enter the smoke collection hood 100 through the two smoke inlets 11111. Located in the space between the second plane b and the third plane c, the fumes at this position are still guided by the air guide plate 1112 and gather towards the center of the smoke collection hood 100, which has a certain smoke collection effect. This facilitates the entry of the fumes into the exhaust channel of the casing 2000, thereby improving the exhaust effect.

[0100] When the fumes pass through the smoke inlet 11111, they come into contact with the filter screen assembly 400 at the smoke inlet 11111 and are filtered of the oil. The filtered oil will adhere to the filter screen assembly 400 and gradually accumulate to form oil droplets. Before entering the smoke collection hood 100, the fumes will come into contact with the smoke inlet plate 111, and oil will also adhere to the smoke inlet plate 111. As the oil increases, it will gradually form oil droplets.

[0101] To optimize the oil path and improve the collection of oil droplets, in some embodiments, such as Figure 11 , Figure 12 and Figure 13As shown, the top of the front surface of the filter assembly 400 is located outside the smoke inlet plate body 1111. Oil droplets attached to the smoke inlet plate body 1111 above the filter assembly 400 can drip onto the filter assembly under the action of gravity, thereby collecting with the oil on the filter assembly 400 and flowing along the filter assembly 400.

[0102] In some embodiments, the bottom end of the front surface of the filter assembly 400 is located inside the smoke inlet plate 111. The oil on the filter assembly 400 can flow along the filter assembly 400 and enter the inside of the smoke collection hood 100, so as to be collected in the oil cup 3000 below the smoke collection hood 100 through the oil passage at the bottom end of the smoke collection hood 100, thereby realizing the unified collection of waste oil.

[0103] To facilitate the implementation of the above-mentioned oil circuit, in some embodiments, such as Figure 12 As shown, the top edge of the smoke inlet 11111 is connected to a first fixing part 1116. The top of the filter assembly 400 is located outside the first fixing part 1116 and connected to the first fixing part 1116, which restricts the position of the top of the filter assembly 400 in the front-back direction, so as to ensure that the top of the front surface of the filter assembly 400 is located outside the smoke inlet plate 111 to catch the dripping oil droplets.

[0104] For example, the first fixing part 1116 includes a first fixing plate and a second fixing plate connected to each other. The first fixing plate extends obliquely upward to the rear side from the top edge of the smoke inlet 11111, and the second fixing plate extends obliquely downward to the rear side from the first fixing plate. The first fixing plate can limit the vertical position of the filter assembly 400, and the second fixing plate can limit the front and rear position of the filter assembly 400.

[0105] In some embodiments, such as Figure 13 As shown, a second fixing part 1117 is connected to the bottom edge of the smoke inlet 11111. The second fixing part 1117 is located on the rear side of the smoke inlet plate 111. The bottom end of the filter assembly 400 is connected to the second fixing part 1117, which restricts the position of the bottom end of the filter assembly 400 in the front-rear direction, so as to ensure that the bottom end of the front surface of the filter assembly 400 is located on the inner side of the smoke inlet plate 111, so that the oil droplets of the filter assembly 400 enter the smoke collection hood 100.

[0106] For example, the second fixing part 1117 is formed with a positioning groove, which is located inside the smoke collection hood 100. The bottom end of the filter assembly extends into the positioning groove and is connected to the second fixing part 1117, so that the bottom end of the front surface of the filter assembly 400 is located inside the smoke inlet plate 111.

[0107] To facilitate maintenance of the drive assembly 300, in some embodiments, the smoke collection device 1000 also includes a top cover. The top of the smoke collection hood 100 has a top opening, and the top cover is detachably connected to the smoke collection hood 100 to cover the top opening. The drive assembly 300 is detachably mounted on the top surface of the smoke collection hood 100, and the cover can cover the connection position between the drive assembly 300 and the smoke collection hood 100. The output end of the drive assembly 300 is detachably connected to the flap 210. When maintenance of the drive assembly 300 is required, only the top cover needs to be removed to expose the connection position between the drive assembly 300 and the smoke collection hood 100, thereby releasing the fixation between the drive assembly 300 and the smoke collection hood 100. After the output end of the drive assembly 300 is separated from the flap 210, the drive assembly 300 can be directly removed without disassembling the smoke collection hood 100. This reduces the number of disassembled parts and improves maintenance convenience.

[0108] In some embodiments, the output end of the drive component 300 outputs linear motion, and the output end of the drive component 300 is detachably rotatably connected to the flap 210 via a first pin. Specifically, as shown... Figure 14 As shown, the flap 210 includes a flap body 211 and a first support 212 disposed on the flap body 211. The first pin is detachably connected to the first support 212 and is relatively fixed. The first pin passes through the output end of the drive assembly 300 and can rotate relative to the output end of the drive assembly 300. When it is necessary to disassemble the flap 210, the first pin can be released from the fixation of the first support 212 and then the pin can be pulled out, which is convenient.

[0109] Optionally, the first pin and the first support 212 can be fixed by a threaded connection. Specifically, the first pin is provided with an external thread and the first support 212 is provided with an internal thread. The first pin and the first support 212 are fixed by the cooperation of the external thread and the internal thread, so as to facilitate disassembly.

[0110] In some other embodiments, the first pin can be fixedly connected to the output end of the drive assembly 300 and rotatably connected to the first support 212 and can be disassembled, which can also achieve the purpose of conveniently disassembling the flip plate 210.

[0111] To improve the ease of maintenance of the drive assembly 300, in some embodiments, such as Figure 15As shown, the drive assembly 300 includes a drive mounting base 320 and a drive component 310. The drive mounting base 320 is detachably connected to the smoke hood 100. The drive component 310 is disposed on the drive mounting base 320, and its output end is detachably connected to the flap 210. When it is necessary to disassemble the drive assembly 300, the drive mounting base 320 can be removed from the smoke hood 100, and the output end of the drive component 310 and the flap 210 can be removed directly. It is not necessary to separate the drive component 310 from the drive mounting base 320, nor is it necessary to disassemble the smoke hood 100, which facilitates the maintenance of the drive assembly 300 and increases the convenience of maintenance.

[0112] In some embodiments, the drive component 310 is a push rod motor, which has a simple structure and can meet the requirement of smooth movement of the flap 210. In other embodiments, the drive component 310 can also be other structures, such as a cylinder, a hydraulic cylinder, a lead screw and nut drive mechanism, etc.

[0113] To ensure smooth movement of the flap 210, in some embodiments, the drive component 310 is hinged to the drive fixing seat 320 so that the drive component 310 can automatically adjust its posture as the opening angle of the flap 210 changes, avoiding structural interference and increasing the rotation angle of the flap 210.

[0114] Since the driving component 310 is mounted on the driving fixture 320, the driving fixture 320 bears a large force. To ensure the structural strength of the driving fixture 320, in some embodiments, the driving fixture 320 includes at least two base bodies, which are stacked and connected. The stacked arrangement of at least two base bodies improves the overall strength of the driving fixture 320, meets installation and usage requirements, and prevents deformation of the driving fixture 320 from affecting the position of the driving component 310, thereby impacting the smoothness of the flip plate 210's movement.

[0115] like Figure 16 and Figure 17 As shown, in some embodiments, the drive fixing seat 320 includes two seats, namely a first seat 321 and a second seat 322. By setting two seats, the structural size and cost can be controlled while improving the overall strength.

[0116] In some embodiments, a portion of the structure of the second seat 322 passes through the first seat 321 and is connected to the drive member 310. This arrangement utilizes two seats to increase overall strength. The force exerted on the second seat 322 by the drive member 310 is directed towards the first seat 321, and the force can be shared by the cooperation of the first and second seats 321, reducing the force on the second seat 322 and thus preventing deformation or damage to the second seat 322.

[0117] In some embodiments, the second seat 322 includes a second seat body 3221 and a second support 3222. The second support 3222 is disposed on the second seat body 3221. The second seat body 3221 is stacked with the first seat 321, and the second seat body 3221 is located on the side of the first seat 321 opposite to the driving member 310. The first seat 321 is provided with a socket 3214, and the second support 3222 passes through the socket 3214 and is connected to the driving member 310. The second support 3222 cooperates with the socket 3214 to realize the positioning of the first seat 321 and the second seat 322, thereby improving the positioning accuracy.

[0118] In some embodiments, the first base 321 may have two insertion holes 3214. Correspondingly, the second base 322 includes two second supports 3222. Each second support 3222 is inserted into the corresponding insertion hole 3214 and connected to the drive member 310 to improve the fixing effect of the drive member 310 and the positioning accuracy of the first base 321 and the second base 322.

[0119] In some embodiments, the second support 3222 is provided with a pin hole 3224, and the pin hole 3224 is rotatably connected to the drive member 310 through the second pin.

[0120] In some other embodiments, the number of seats may be three or more. Among the two outermost seats along the stacking direction, the seat closest to the drive assembly 300 is provided with a socket 3214, and the other seat passes through the socket 3214 and is connected to the drive assembly 300.

[0121] To improve the strength of the drive fixing seat 320, in some embodiments, a reinforcing structure 3211 is provided on the first seat body 321. The reinforcing structure 3211 can improve the strength of the first seat body 321, thereby further preventing the second seat body 322 from deforming and avoiding affecting the installation accuracy of the drive component 310 and the smooth movement of the flip plate 210.

[0122] In some embodiments, the first base 321 can be formed by stamping to create a reinforcing structure 3211, thereby simplifying the manufacturing process and reducing costs.

[0123] In some embodiments, the first base 321 and the second base 322 are riveted together. For example, the first base 321 and the second base 322 are fixed by rivets. The first base 321 is provided with a first rivet hole 3215, and the second base 322 is provided with a second rivet hole 3223. The rivets pass through the first rivet hole 3215 and the second rivet hole 3223 respectively to fix the first base 321 and the second base 322, and the fixing effect is reliable.

[0124] In some embodiments, such as Figure 18As shown, the hinge seat 221 is fixed on the inner wall of the top of the smoke hood 100, and the hinge rod 223 passes through the first clearance hole 11112 on the smoke hood 100 and is connected to the top of the flap 210 so that the flap 210 rotates approximately around the top edge as the rotation center; the drive fixing seat 320 is connected to the rear side of the top of the smoke hood 100, and the drive member 310 extends downward from back to front. The output end of the drive member 310 passes through the second clearance hole 11113 on the smoke hood 100 and is connected to the flap 210 so as to drive the flap 210 to rotate.

[0125] In some embodiments, the drive mounting base 320 and the smoke hood 100 are connected by at least two connectors. Of all the connectors, at least one connector is fixed to the smoke hood 100, and at least one connector is fixed to the drive mounting base 320. This arrangement enables staggered fixing, avoiding the concentration of fastening force solely on the smoke hood 100 or the drive mounting base 320, which helps increase the stability of the fixing and ensures the secure installation.

[0126] In some embodiments, the connector is a screw, which includes a first screw and a second screw. The first screw passes through the drive fixing seat 320 and is threadedly fixed to the smoke hood 100. The locking force of the first screw acts on the smoke hood 100. The second screw passes through the smoke hood 100 and is fixed to the drive fixing seat 320. The locking force of the second screw acts on the drive fixing seat 320.

[0127] like Figures 19-21 As shown, in some embodiments, the top surface of the smoke hood 100 includes a first fixed flange 122 and a second fixed flange 131. A drive fixing seat 320 is located between the first fixed flange 122 and the second fixed flange 131. The first fixed flange 122 is fixedly connected to the drive fixing seat 320 via a connector, and the second fixed flange 131 is fixedly connected to the drive fixing seat 320 via a connector. This arrangement allows the first fixed flange 122 and the second fixed flange 131 to be located on opposite sides of the drive fixing seat 320, and the connectors corresponding to the first fixed flange 122 and the second fixed flange 131 can be installed and removed from the same direction, improving operational convenience.

[0128] Optionally, the first fixed flange 122 and the second fixed flange 131 are spaced apart in the vertical direction so that the drive fixing seat 320 located between the first fixed flange 122 and the second fixed flange 131 has a simple structure and can be fixed with the first fixed flange 122 and the second fixed flange 131 without the need for a complex shape.

[0129] In some embodiments, the top surface of the smoke hood 100 includes a first fixing flange 122 and a second fixing flange 131 for fixing the drive assembly 300. The extending directions of the first fixing flange 122 and the second fixing flange 131 are set at an angle to improve the fixing effect of the drive assembly 300. Exemplarily, the first fixing flange 122 and the second fixing flange 131 are used for fixed connection with the drive fixing seat 320.

[0130] For example, the first fixed flange 122 extends in the front-to-back direction and is located at the left or right edge of the smoke hood 100. The left or right edge of the drive fixing seat 320 is located above the first fixed flange 122, combined with... Figure 16 and Figure 20 As shown, the first screw passes through the through hole 3212 on the drive mounting base 320 and is locked to the first fixing flange 122. The second fixing flange 131 extends in the left-right direction and is located on the rear edge of the smoke hood 100. The second fixing flange 131 is located above the drive mounting base 320. The second screw passes through the second fixing flange 131 and is locked to the threaded hole 3213 on the drive mounting base 320.

[0131] In some other embodiments, the extension directions of the first fixed flange 122 and the second fixed flange 131 may also be other directions, which are not limited here.

[0132] To improve the fixing effect between the drive fixing base 320 and the smoke hood 100, in some embodiments, the number of connecting members is set to multiple, and the connection line of at least three connecting members forms a triangle, so as to improve the firmness of the drive fixing base 320 after fixing.

[0133] For example, a first screw is connected to each end of the first fixing flange 122 along the front-back direction, and a second screw is connected to the end of the second fixing flange 131 away from the first fixing flange 122. The line connecting the two first screws and the second screw is a triangle, forming a triangular fixing structure to improve the firmness of the drive fixing seat 320 after it is fixed.

[0134] To facilitate maintenance of the flap 210, in some embodiments, the hinge structure 220 is detachably connected to the flap 210, and the output end of the drive assembly 300 is detachably connected to the flap 210. When maintenance is required, the flap 210 can be disassembled from both the hinge structure 220 and the output end of the drive assembly 300, and the flap 210 can be removed from the entire machine. This reduces the number of parts to be disassembled, thus improving the ease of maintenance.

[0135] In some embodiments, the hinge structure 220 and the flap 210 are connected by fasteners for easy disassembly. Optionally, the fasteners can be screws, which are not only simple in structure and securely fixed, but also easy to disassemble.

[0136] In some embodiments, such as Figure 14 As shown, the flap 210 includes a flap body 211 and a fixing frame 213 disposed on the back of the flap body 211. The hinge structure 220 is fixedly connected to the fixing frame 213 by screws. By setting the fixing frame 213 to connect the hinge structure 220, it is possible to avoid affecting the strength and appearance consistency of the flap body 211.

[0137] Optionally, the fixing frame 213 and the flip plate body 211 can be fixed by screws, snap-fit, or welding.

[0138] In some other embodiments, the hinge structure 220 and the flap 210 can also be fixed by a snap-fit ​​method to achieve a detachable connection.

[0139] like Figure 22 and Figure 23 As shown, in some embodiments, the hinge structure 220 includes a hinge seat 221, a hinge shaft 222, and a hinge rod 223. The hinge seat 221 is connected to the smoke hood 100, and the hinge shaft 222 is rotatably connected to the hinge seat 221. One end of the hinge rod 223 is fixedly connected to the hinge shaft 222, and the other end is detachably connected to the flap 210. When the drive assembly 300 is started, the output end of the drive assembly 300 drives the flap 210 to move, and the hinge rod 223 rotates relative to the hinge shaft 222 to limit the movement trajectory of the flap 210, thereby realizing the operation of opening or closing the smoke inlet 11111 of the flap 210.

[0140] To improve the fixing effect of the hinge shaft 222, both ends of the hinge shaft 222 are rotatably connected to the hinge seat 221 to ensure the stability of the hinge shaft 222, which is conducive to ensuring that the flap 210 moves along the prescribed route.

[0141] To facilitate the engagement of the hinge shaft 222 and the hinge seat 221, in some embodiments, the hinge shaft 222 and the hinge seat 221 are riveted together, which provides reliable fixation and a simple structure.

[0142] To facilitate the fixing of the hinge rod 223 and the hinge shaft 222, in some embodiments, the hinge shaft 222 passes through the hinge rod 223 and is interference-fitted with the hinge rod 223 to limit the relative rotation between the hinge rod 223 and the hinge shaft 222.

[0143] To improve the fixing effect between the hinge rod 223 and the hinge shaft 222, in some embodiments, an anti-slip structure is provided on the hinge shaft 222 at the position where the hinge rod 223 is connected, so as to increase the friction between the hinge rod 223 and the hinge shaft 222 and prevent the hinge rod 223 and the hinge shaft 222 from rotating relative to each other.

[0144] In some embodiments, such as Figure 24As shown, the anti-slip structure can be an anti-slip pattern 2221, which can be made by knurling to increase friction.

[0145] In some other embodiments, the anti-slip structure can be an anti-slip layer made of anti-slip material to increase contact friction and prevent the hinge rod 223 from rotating relative to the hinge shaft 222.

[0146] Combination Figure 3 As shown, the hinge seat 221 is fixed to the inner wall of the top of the smoke collection hood 100 to hide the hinge structure when the flap 210 closes the smoke inlet 11111, thereby improving the appearance consistency of the fume extraction equipment.

[0147] To ensure that the flap 210 can smoothly open or close the smoke inlet 11111 under the action of the hinged structure, in some embodiments, such as Figure 25 As shown, the hinge rod 223 includes an arc-shaped rod 2231 and a fixed rod 2232. The arc-shaped rod 2231 extends in an arc shape. One end of the arc-shaped rod 2231 is connected to the hinge shaft 222, and the other end passes through the smoke hood 100 and bends towards the front of the smoke hood 100, connecting to the fixed rod 2232. The fixed rod 2232 is fixed to the flap 210. By setting the arc-shaped rod 2231, the size of the opening on the smoke hood 100 that needs to avoid the hinge rod 223 can be reduced, preventing interference with the smoke hood 100 and ensuring smoother and more stable movement.

[0148] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A smoke collection hood, characterized in that, It includes a separate smoke collection chamber plate (110) and a side plate (120). The smoke collection chamber plate (110) includes a smoke inlet plate (111) and a front end (112). The front end (112) is connected to the front edge of the smoke inlet plate (111). The left and right sides of the smoke collection chamber plate (110) are respectively provided with side plates (120), and the side plates (120) are respectively connected to the smoke inlet plate (111) and the front end (112); The edge of the portion of the smoke inlet plate (111) that connects with the side plate (120) and / or the front end portion (112) extends along a curve.

2. The smoke collection hood according to claim 1, characterized in that, The front edge of the smoke inlet plate (111) is provided with first curved edges (1114) at both ends, and the two ends of the front end (112) extend to the first curved edges (1114) to form rounded corners. The connection position between the side plate (120) and the front end (112) is located behind the first curved edges (1114). And / or, the left and right sides of the smoke inlet plate (111) are provided with second curved edges (1115), and the second curved edges (1115) are connected to the side plate (120).

3. The smoke collection hood according to claim 2, characterized in that, The front end portion (112) includes: The front panel (1121) includes a front panel body (11211), and curved panels (11212) are respectively connected to the left and right ends of the front panel body (11211). The front panel body (11211) and the smoke inlet plate (111) are integrally formed, and the curved panels (11212) are welded and fixed to the edge of the first curved edge (1114). The top plate (1122) is integrally formed with the front plate body (11211), and the two ends of the top plate (1122) are welded and fixed to the edge of the curved panel (11212).

4. The smoke collection hood according to claim 3, characterized in that, The curved panel (11212) is located outside the top plate (1122) and the smoke inlet plate (111). The welding positions of the curved panel (11212) and the smoke inlet plate (111) are both located on the inner surface of the curved panel (11212).

5. The smoke hood according to any one of claims 1-4, characterized in that, The side plate (120) is located outside the smoke inlet plate (111), and the side plate (120) covers the side end face of the smoke inlet plate (111); And / or, the inner surface of the side plate (120) includes a first welding plane that is fitted and welded to the smoke inlet plate (111); And / or, the front end face of the side plate (120) is welded and fixed to the rear end face of the front end (112), and both the front end face of the side plate (120) and the rear end face of the front end (112) are planar.

6. The smoke hood according to any one of claims 1-4, characterized in that, The smoke inlet plate (111) is provided with a window, and at least one partition beam (1113) is provided in the window, the partition beam (1113) dividing the window into at least two smoke inlets (11111).

7. The smoke collection hood according to claim 6, characterized in that, The smoke inlet plate (111) includes a smoke inlet plate body (1111) and an air guide plate (1112). The smoke inlet plate body (1111) is provided with the window. The air guide plate (1112) is arranged around the window. The partition beam (1113) is connected to the air guide plate (1112). The air guide plate (1112) extends from the smoke inlet plate (111) into the smoke collection hood. The plane on which the main body of the smoke inlet plate (1111) is located is the first plane, the plane on which the front surface of the partition beam (1113) is located is the second plane, and the plane on which the rear end of the air guide plate (1112) is located is the third plane. The first plane, the second plane and the third plane are arranged in order from front to back.

8. The smoke hood according to any one of claims 1-4, characterized in that, The smoke inlet plate (111) is provided with a smoke inlet (11111), and the smoke collection hood also includes a filter assembly (400) connected to the smoke inlet plate (111) and located at the smoke inlet (11111). The top end of the front surface of the filter assembly (400) is located outside the smoke inlet plate (111), and the bottom end of the front surface of the filter assembly (400) is located inside the smoke inlet plate (111).

9. A smoke collection device, characterized in that, include: The smoke collection hood as described in any one of claims 1-8, wherein the smoke collection hood is provided with a smoke inlet (11111) and the top of the smoke collection hood is provided with a top opening; A flap assembly (200) includes a flap (210) and a hinge structure (220). The hinge structure (220) is disposed on the smoke hood and is connected to the flap (210) so that the flap (210) can rotate relative to the smoke hood to open or close the smoke inlet (11111). A drive assembly (300) is detachably mounted on the top surface of the smoke collection hood. The output end of the drive assembly (300) is detachably connected to the flap (210) to drive the flap (210) to rotate. The top cover is detachably connected to the smoke collection hood and is used to cover the top opening. The top cover covers the connection position between the drive assembly (300) and the smoke collection hood.

10. A fume extraction device, characterized in that, include: Chassis (2000); The smoke hood as described in any one of claims 1-8 or the smoke collection device as described in claim 9, wherein the smoke hood is disposed at the bottom end of the housing (2000).

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