Smoke collecting structure and oil fume extractor

Abstract

This utility model belongs to the field of kitchen appliance technology and discloses a smoke collection structure and a fume extraction device. Since the front smoke collection plate is movably installed on the smoke collection shell and is always located in front of the top smoke inlet, even when the front smoke collection plate is closed, it will not contact the top smoke inlet. This effectively prevents oil stains around the top smoke inlet from sticking to the front smoke collection plate, and the oil stains generated by the top smoke inlet from absorbing fumes will not fall onto the inner end face of the front smoke collection plate, thereby reducing the cleaning frequency of the front smoke collection plate and improving the user experience.

Description

Technical Field

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

[0002] During cooking, when oil fumes rise instantly, a large amount of oil fumes often escape from the top front of the fume collection shell. This not only pollutes the air environment in the kitchen, but the oil fumes escaping from the top front of the fume collection shell are also easily absorbed by users, which can easily affect their health in the long run.

[0003] To address this, existing technologies propose installing a flip-up smoke-collecting plate on the top front side of the smoke collection shell. When cooking, the smoke-collecting plate is opened to guide the smoke to the smoke inlet, ensuring that the plate does not obstruct the smoke inlet and increasing the smoke intake area available for smoke intake. When not cooking, the smoke-collecting plate is closed to conceal the smoke inlet, improving aesthetics and reducing the vertical space occupied by the smoke-collecting plate.

[0004] However, in actual use, it was found that when the smoke collection plate covers the smoke inlet, the grease that accumulates on the smoke inlet surface easily sticks to the smoke collection plate, causing the smoke collection plate to need to be cleaned frequently, resulting in a poor user experience. Utility Model Content

[0005] One of the technical problems solved by this utility model is to provide a smoke collection structure that can reduce the cleaning frequency of the front smoke collection plate while satisfying the oil fume extraction effect.

[0006] The second technical problem solved by this utility model is to provide a fume extraction device that can improve the user experience while satisfying the fume extraction effect.

[0007] The first technical problem mentioned above is solved by the following technical solution:

[0008] The smoke collection structure includes a smoke collection shell with a smoke guide plate and a front smoke gathering plate. The smoke guide plate is provided with a top smoke inlet. The front smoke gathering plate is used to guide the smoke to the top smoke inlet. The front smoke gathering plate is always located in front of the top smoke inlet.

[0009] The front smoke-collecting plate is movably installed on the smoke-collecting housing and can be switched between a closed position and an open position.

[0010] The smoke collection structure described in this utility model has the following advantages compared with the prior art:

[0011] The smoke collection structure provided by this utility model has a front smoke collection plate that is movably installed on the smoke collection shell and is always located in front of the top smoke inlet. Even when the front smoke collection plate is closed, it will not come into contact with the top smoke inlet, which can effectively prevent oil stains around the top smoke inlet from sticking to the front smoke collection plate. The oil stains generated by the top smoke inlet from absorbing fumes will not fall onto the inner end face of the front smoke collection plate, thereby reducing the cleaning frequency of the front smoke collection plate and improving the user experience.

[0012] By flipping the front smoke gatherer, cooking over high heat can be done by flipping it to the open position. Oil fumes escaping towards the front of the smoke collection housing will collide with the front smoke gatherer and flow backward under its influence, before being drawn into the upper smoke inlet, thus reducing the amount of oil fumes escaping from the front of the smoke collection housing. Furthermore, cooking over low heat can be done by flipping the front smoke gatherer to the closed position. A small amount of rising oil fumes will be drawn into the top smoke inlet, freeing up space above and preventing the user's head from hitting the front smoke gatherer.

[0013] In one embodiment, the lower end face of the smoke guide plate is provided with a receiving groove, the receiving groove is located in front of the top smoking port, and the bottom wall of the receiving groove and the smoke guide plate are both inclined downward from front to back;

[0014] The rear wall of the receiving tank is used to guide the oil in the receiving tank to the lower rear end face of the smoke guide plate.

[0015] In one embodiment, the rear wall of the receiving groove is a rounded chamfered surface or a beveled chamfered surface.

[0016] In one embodiment, when the front smoke gatherer is in the closed position, the front smoke gatherer is located in the receiving groove, and the lower surface of the front smoke gatherer is flush with the rear lower end face of the smoke guide plate.

[0017] In one embodiment, the smoke collection structure further includes:

[0018] The mounting bracket is fixed inside the smoke collection housing, and the bottom wall of the receiving groove is provided with a through hole;

[0019] The rotating bracket has a first end and a second end that are arranged opposite to each other. The first end is fixed to the front smoke baffle, and the second end is rotatably connected to the mounting bracket through a damping element. The rotating bracket is rotatably inserted through the through hole about an axis that rotates relative to the mounting bracket.

[0020] In one embodiment, a first magnetic attractor is installed on the smoke guide plate, and a second magnetic attractor is provided on the front smoke gatherer plate; when the front smoke gatherer plate is in the closed position, the first magnetic attractor and the second magnetic attractor can attract each other.

[0021] And / or, when the front smoke baffle is in the open position, the front smoke baffle is arranged vertically.

[0022] In one embodiment, a light is installed on the smoke guide plate;

[0023] When the front smoke baffle is in the open position, the front smoke baffle is located in front of the lighting lamp; when the front smoke baffle is in the closed position, the lighting lamp is located above the front smoke baffle, and the front smoke baffle has a transparent structure at least in a preset area directly opposite the lighting lamp.

[0024] In one embodiment, the left and right sides of the smoke collection housing are connected to side smoke gathering plates, and the top smoke inlet is located between the two side smoke gathering plates in the left and right direction; when the front smoke gathering plate is in the open position, the front smoke gathering plate and the two side smoke gathering plates surround each other to form a smoke gathering area.

[0025] In one embodiment, the front panel of the smoke collection housing has a side smoke port located below the top smoke port.

[0026] The second technical problem mentioned above is solved by the following technical solution:

[0027] The fume extraction device includes the smoke collection structure provided in any of the above embodiments.

[0028] Compared with the prior art, the oil fume extraction device of this utility model has the following advantages:

[0029] The fume extraction device provided by this utility model includes the above-mentioned smoke collection structure. By adopting the above-mentioned smoke collection structure, the cleaning frequency of the front smoke collection plate can be reduced while satisfying the fume extraction effect, thereby improving the user experience. Attached Figure Description

[0030] Figure 1 This is a first-view structural diagram of the fume extraction device when the front smoke-collecting plate is in the open position, as provided in this embodiment of the utility model.

[0031] Figure 2 This is a schematic diagram of the fume extraction device when the front smoke-collecting plate is in the closed position, as provided in this embodiment of the utility model.

[0032] Figure 3 This is a structural schematic diagram of the smoke guide plate and front panel provided in an embodiment of the present utility model;

[0033] Figure 4 yes Figure 3 A magnified view of a portion of point A in the middle;

[0034] Figure 5This is a second-view structural diagram of the fume extraction device when the front smoke-collecting plate is in the open position, as provided in this embodiment of the utility model.

[0035] Figure 6 This is a side view of the fume extraction device provided in this embodiment of the present invention when the front smoke-collecting plate is in the open position;

[0036] Figure 7 This is a front view of the fume extraction device provided in this embodiment of the present invention when the front smoke collection plate is in the open position;

[0037] Figure 8 yes Figure 7 A magnified view of a portion of point B in the middle;

[0038] Figure 9 This is a schematic diagram showing the connection of the front smoke-collecting plate, the mounting bracket, and the rotating bracket provided in this embodiment of the utility model;

[0039] Figure 10 yes Figure 9 A magnified view of a portion of point C.

[0040] In the picture:

[0041] 1. Smoke collection housing; 11. Smoke guide plate; 111. Top smoke inlet; 112. Receiving groove; 1121. Assembly hole; 1122. Rear side groove wall; 1123. Through hole; 12. Front panel; 121. Side smoke inlet; 13. Assembly front panel;

[0042] 2. Lighting lamp;

[0043] 31. Front smoke baffle; 311. Transparent structure; 32. Side smoke baffle;

[0044] 41. Install the bracket; 42. Rotate the bracket; 421. Rotate the frame; 422. Support the frame;

[0045] 51. First magnetic component; 52. Second magnetic component;

[0046] 6. Control panel. Detailed Implementation

[0047] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0048] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0049] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0050] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0051] This utility model provides a smoke collection structure and a fume extraction device including the smoke collection structure, so as to reduce the cleaning frequency of the front smoke collection plate and improve the user experience while satisfying the fume extraction effect. The above-mentioned fume extraction device can be a "7"-shaped range hood, a top-mounted range hood, or other devices with a top smoke inlet such as a range hood and cooktop combo, integrated cooktop, etc. The following uses a "7"-shaped range hood as an example to specifically describe the smoke collection structure of the "7"-shaped range hood.

[0052] like Figures 1 to 9 As shown, the smoke collection structure includes a smoke collection housing 1 with a smoke guide plate 11 and a front smoke gathering plate 31. The smoke guide plate 11 has a top smoke inlet 111, and the front smoke gathering plate 31 is used to guide the smoke to the top smoke inlet 111. The front smoke gathering plate 31 is movably installed on the smoke collection housing 1 and can switch between a closed position and an open position. The front smoke gathering plate 31 is always located in front of the top smoke inlet 111. Exemplarily, the front smoke gathering plate 31 is rotatably installed on the front end of the smoke collection housing 1.

[0053] When the user is stir-frying, the fumes rise rapidly. The fumes rising to the top are sucked into the top smoke inlet 111. In order to reduce the fumes from escaping from the front of the smoke collection housing 1, the front smoke baffle 31 can be opened. After the front smoke baffle 31 is switched to the open position, the fumes escaping from the front of the smoke collection housing 1 can hit the front smoke baffle 31 and flow back under the action of the front smoke baffle 31, and then be sucked into the top smoke inlet 111, thereby reducing the fumes from escaping from the front of the smoke collection housing 1.

[0054] When cooking over low heat or when the fume extractor is not in use, the front fume extractor 31 can be switched to the closed position to free up space above and prevent the user's head from hitting the front fume extractor 31.

[0055] Since the front smoke gathering plate 31 is movably installed on the smoke collection housing 1 and is always located in front of the top smoke inlet 111, even when the front smoke gathering plate 31 is closed, it will not come into contact with the top smoke inlet 111. This effectively prevents oil stains around the top smoke inlet 111 from sticking to the front smoke gathering plate 31, and the oil stains generated by the top smoke inlet 111 absorbing fumes will not fall onto the inner end face of the front smoke gathering plate 31, thereby reducing the cleaning frequency of the front smoke gathering plate 31 and improving the user experience.

[0056] In some embodiments, such as Figures 1 to 3 As shown, the front panel 12 of the smoke collection housing 1 has a side smoke inlet 121 located below the top smoke inlet 111. When cooking over low heat, less smoke is produced, so the front smoke baffle 31 can be left closed, meaning the front smoke baffle 31 is switched to the closed position. A large amount of smoke is drawn into the side smoke inlet 121, while a small amount of smoke that escapes upwards is drawn into the top smoke inlet 111. When cooking over high heat, the front smoke baffle 31 can be opened, utilizing both the top smoke inlet 111 and the side smoke inlet 121 simultaneously to improve smoke extraction.

[0057] It should be noted that, for the 7-shaped smoke hood, the smoke collection housing 1 includes a 7-shaped front panel, which includes the aforementioned smoke guide plate 11 and a front panel 12 connected to the rear end of the smoke guide plate 11 and located below the smoke guide plate 11. The top smoke inlet 111 is located at the rear of the smoke guide plate 11, and the side smoke inlet 121 is located at the lower part of the front panel 12.

[0058] In some embodiments, such as Figure 1 As shown, there are multiple top smoke inlets 111, and the sum of the cross-sectional areas of all the top smoke inlets 111 is S1. The cross-sectional area of ​​the side smoke inlets 121 is S2, where S2 > S2. This ensures that the top smoke inlets 111 can function effectively and avoids the problem of opening side smoke inlets 121 with excessively large cross-sectional areas, which would result in unsatisfactory smoke extraction from the top smoke inlets 111.

[0059] For example, a plurality of top smoke inlets 111 are arranged at intervals in the left-right direction, the top smoke inlets 111 are elongated holes extending in the front-back direction, and the side smoke inlets 121 are elongated holes extending in the left-right direction.

[0060] In some embodiments, such as Figure 1 , Figure 2 as well as Figure 5 As shown, the left and right sides of the smoke collection shell 1 are connected to side smoke gathering plates 32, and the top smoke inlet 111 is located between the two side smoke gathering plates 32 in the left and right direction; when the front smoke gathering plate 31 is in the open position, the front smoke gathering plate 31 and the two side smoke gathering plates 32 enclose each other to form a smoke gathering area.

[0061] When the user is stir-frying, the fumes quickly rise to the upper smoke collection area and are sucked into the top smoke inlet 111. The smoke collection area is formed by the front smoke collection plate 31 and the two side smoke collection plates 32, which can effectively suppress the fumes escaping from the left, right and front sides of the top smoke inlet 111. This not only improves the smoke extraction effect of the range hood, but also effectively reduces the impact of escaping fumes on the user's health.

[0062] In some embodiments, such as Figures 1 to 5 As shown, a receiving groove 112 is provided on the lower end face of the smoke guide plate 11. The receiving groove 112 is located in front of the top smoke inlet 111. The bottom wall of the receiving groove 112 and the lower rear end face of the smoke guide plate 11 are both inclined downward from front to back. The bottom wall of the receiving groove 112 is connected to the lower rear end face of the smoke guide plate 11 through the rear wall 1122 of the receiving groove 112. The rear wall 1122 of the receiving groove 112 is used to guide the oil in the receiving groove 112 to the lower rear end face of the smoke guide plate 11.

[0063] The bottom wall of the receiving tank 112 is inclined downward from front to back, so that the oil sludge accumulated on the bottom wall of the receiving tank 112 flows to the rear wall 1122 of the receiving tank 112 under its own guiding effect; since the lower end face of the smoke guide plate 11 is inclined downward from front to back, the bottom wall of the receiving tank 112 is connected to the lower rear end face of the smoke guide plate 11 through the rear wall 1122 of the receiving tank 112. The rear wall 1122 of the receiving tank 112 guides the oil sludge to the lower rear end face of the smoke guide plate 11, and then discharges it into the oil collection box through the lower rear end face of the smoke guide plate 11.

[0064] It should be noted that how the oil sludge accumulated on the lower rear end face of the smoke guide plate 11 is discharged into the oil collection box is existing technology in this field and will not be described in detail here.

[0065] For ease of description, the surface of the front smoke baffle 31 facing forward when it is in the open position is referred to as the front side of the front smoke baffle 31, and the surface of the front smoke baffle 31 facing backward when it is in the open position is referred to as the inner side of the front smoke baffle 31. Correspondingly, when the front smoke baffle 31 is in the closed position, the inner side of the front smoke baffle 31 faces the bottom wall of the receiving groove 112, that is, the inner side of the front smoke baffle 31 is the upper surface of the front smoke baffle 31; the outer side of the front smoke baffle 31 faces away from the bottom wall of the receiving groove 112, that is, the outer side of the front smoke baffle 31 is the lower surface of the front smoke baffle 31.

[0066] When the front smoke baffle 31 is in the open position, the fumes, after hitting the inner side of the front smoke baffle 31, flow back and are drawn into the top smoke inlet 111. After prolonged use, grease will accumulate on the inner side of the front smoke baffle 31. Therefore, in some embodiments, such as... Figures 3 to 5 As shown, when the front smoke baffle 31 is in the closed position, the front smoke baffle 31 is located in the receiving groove 112, and the lower surface of the front smoke baffle 31 is flush with the lower rear end surface of the smoke guide plate 11.

[0067] This improves the aesthetics of the fume extraction device after the front smoke baffle 31 is closed; and after cooking, when the front smoke baffle 31 is switched to the closed position, the oil accumulated on the inner side of the front smoke baffle 31 will slide down under the action of gravity and flow to the rear wall 1122 of the receiving groove 112, and flow to the lower rear end face of the smoke baffle 11 under the action of the rear wall 1122 of the receiving groove 112.

[0068] For example, the rear wall 1122 of the receiving groove 112 is a chamfered surface, which helps to guide the oil in the receiving groove 112 to the lower rear end face of the smoke guide plate 11. As an alternative, the rear wall 1122 of the receiving groove 112 can also be a rounded chamfered surface.

[0069] In some embodiments, such as Figures 1 to 3 ,and Figure 5 As shown, a light 2 is installed on the smoke guide plate 11; the front smoke baffle 31 is in the open position, located in front of the light 2; when the front smoke baffle 31 is in the closed position, the light 2 is located above the front smoke baffle 31, and at least a predetermined area of ​​the front smoke baffle 31 directly opposite the light 2 is a transparent structure 311. For example, the transparent structure 311 is a transparent glass plate.

[0070] It should be noted that the entire front smoke gatherer 31 can be made of transparent glass, with a light-shielding layer on the inner side of the glass and a preset area that is transparent to allow light to pass through. Alternatively, only the transparent structure 311 of the entire front smoke gatherer 31 can be made of transparent glass. Specifically, the front smoke gatherer 31 includes a smoke gatherer body with mounting holes, and the transparent structure 311 is mounted in the mounting holes.

[0071] When the front smoke baffle 31 is in the open position, it is located in front of the light 2 and does not obstruct the light 2, allowing the light from the light 2 to radiate directly downwards. When the front smoke baffle 31 is in the closed position, the light 2 is located above the front smoke baffle 31, and at least a pre-defined area of ​​the front smoke baffle 31 directly facing the light 2 is a transparent structure 311, allowing the light from the light 2 to pass through the transparent structure 311 and shine downwards. This ensures that the front smoke baffle 31 does not affect the use of the light 2 whether it is in the open or closed position, thus improving the user experience.

[0072] In some embodiments, such as Figure 3 and Figure 5 As shown, the bottom wall of the receiving tank 112 has an assembly hole 1121, and the lighting lamp 2 is installed in the assembly hole 1121. The lower surface of the lighting lamp 2 is flush with the bottom wall of the receiving tank 112. This arrangement can prevent the lighting lamp 2 from affecting the oil drainage effect of the bottom wall of the receiving tank 112.

[0073] In some embodiments, such as Figures 3 to 9 As shown, the smoke collection structure also includes a mounting bracket 41 and a rotating bracket 42. The mounting bracket 41 is fixed inside the smoke collection housing 1, and the bottom wall of the receiving groove 112 is provided with a through hole 1123. The rotating bracket 42 has a first end and a second end that are arranged opposite to each other. The first end is fixed to the inner side of the front smoke gathering plate 31, and the second end is rotatably connected to the mounting bracket 41 through a damping element. The rotating bracket 42 is rotatably inserted through the through hole 1123 about the axis of its own rotation relative to the mounting bracket 41.

[0074] By incorporating damping components, the angle of the front smoke baffle 31 can be manually adjusted by the user. This adjustment is convenient and quick, and it also eliminates the need for a motor, reducing costs. Furthermore, when the front smoke baffle 31 is in the closed position, it can conceal the rotating bracket 42, improving the aesthetics of the range hood. In addition, the angle of the front smoke baffle 31 can be adjusted freely according to needs, and it can be held at any position within its travel range.

[0075] Specifically, the mounting bracket 41 has a first through hole, and the rotating bracket 42 has a second through hole. A locking bolt rotatably passes through the first and second through holes around its own axis and is threaded onto a locking nut. The rotating bracket 42 is rotatably mounted on the mounting bracket 41. At least one damping element is sandwiched between the locking nut and the rotating bracket 42, between the rotating bracket 42 and the mounting bracket 41, and between the head of the locking bolt and the mounting bracket 41. Utilizing the frictional resistance between the structural components that press against these damping elements along the axial direction of the damping elements, such as the head of the locking bolt, the rotating bracket 42, the mounting bracket 41, and the locking nut, the angle of the front smoke baffle 31 is adjustable, and the angle of the front smoke baffle 31 remains stationary after adjustment.

[0076] To facilitate the connection of the rotating bracket 42 to the front smoke baffle 31, the rotating bracket 42 includes a rotating frame 421 and a support frame 422 that are fixedly connected. The rotating frame 421 is rotatably connected to the mounting bracket 41, and the support frame 422 is pasted and fixed to the inner side of the front smoke baffle 31.

[0077] Specifically, the 7-shaped front panel also includes an assembly front panel 13 connected to the upper end of the smoke guide plate 11 and located above the smoke guide plate 11. The mounting bracket 41 is fixed to the rear side of the assembly front panel 13. The connection position of the support frame 422 and the rotating frame 421 is located inside the smoke collection housing 1. The support frame 422 is rotatably arranged through the through hole 1123 around the rotation axis of the rotating bracket 42 and the mounting bracket 41.

[0078] In some embodiments, such as Figures 7 to 10 As shown, there are at least two rotating brackets 42, which are arranged at intervals in the left and right direction. There are at least two mounting brackets 41. The rotating brackets 42 and the mounting brackets 41 correspond one-to-one. Each rotating bracket 42 and the corresponding mounting bracket 41 is provided with a damping element at the connection position. This can improve the stability of the front smoke baffle 31 when it is flipped.

[0079] For example, there are two rotating brackets 42 and two mounting brackets 41, and the two rotating brackets 42 are arranged symmetrically about the axis extending in the width direction of the front smoke baffle 31 itself.

[0080] In some embodiments, such as Figure 5 , Figure 9 and Figure 10 As shown, a first magnetic attractor 51 is installed on the smoke guide plate 11, and a second magnetic attractor 52 is provided on the front smoke gatherer plate 31. When the front smoke gatherer plate 31 is in the closed position, the first magnetic attractor 51 and the second magnetic attractor 52 attract each other, so that the front smoke gatherer plate 31 is stably kept in the closed position.

[0081] For example, the first magnetic chuck 51 is a permanent magnet mounted on the smoke guide plate 11, and the second magnetic chuck 52 is mounted on the support frame 422. The second magnetic chuck 52 is a magnetic structural component. Alternatively, the second magnetic chuck 52 can be a permanent magnet, and the first magnetic chuck 51 can be a magnetic structural component.

[0082] Specifically, the bottom wall of the receiving groove 112 is provided with an installation through hole, which is a stepped hole with a stepped surface facing forward. The first magnetic suction member 51 is embedded in the installation through hole and abuts against the stepped surface backward. A nut is fixed to the inner wall of the smoke collection housing 1. If the nut is welded to the inner wall of the smoke collection housing 1, a screw is threaded through the first magnetic suction member 51 and then threaded to the nut to install and fix the first magnetic suction member 51 to the smoke collection housing 1.

[0083] In some embodiments, such as Figure 6 As shown, when the front smoke baffle 31 is in the open position, the front smoke baffle 31 is arranged vertically, which helps to keep the front smoke baffle 31 stably in the open position. Especially when a damping element is used, it is more conducive to reducing the resistance requirements that the damping element can provide.

[0084] Specifically, a control panel 6 is installed on the front side of the smoke collection housing 1, with the front smoke gathering plate 31 in the open position. The front side of the control panel 6 is flush with the outer side of the front smoke gathering plate 31; in other words, the control panel 6 is arranged vertically. This arrangement improves the aesthetics of the fume extraction device when the front smoke gathering plate 31 is in the open position.

[0085] In the specific implementation of the above embodiments, the technical features can be combined in any non-contradictory way. For the sake of brevity, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features is not contradictory, it should be considered to be within the scope of this specification.

[0086] The specific embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A smoke collection structure, characterized in that, It includes a smoke collection housing (1) with a smoke guide plate (11) and a front smoke gathering plate (31). The smoke guide plate (11) is provided with a top smoke inlet (111). The front smoke gathering plate (31) is used to guide the smoke to the top smoke inlet (111). The front smoke gathering plate (31) is always located in front of the top smoke inlet (111). The front smoke collection plate (31) is movably installed on the smoke collection housing (1) and can be switched between the closed position and the open position.

2. The smoke collection structure according to claim 1, characterized in that, The lower end face of the smoke guide plate (11) is provided with a receiving groove (112), the receiving groove (112) is located in front of the top smoking port (111), and the bottom wall of the receiving groove (112) and the smoke guide plate (11) are both inclined downward from front to back; The rear wall (1122) of the receiving groove (112) is used to guide the oil in the receiving groove (112) to the lower rear end face of the smoke guide plate (11).

3. The smoke collection structure according to claim 2, characterized in that, The rear wall (1122) of the receiving groove (112) is a rounded chamfered surface or a beveled chamfered surface.

4. The smoke collection structure according to claim 2, characterized in that, When the front smoke gathering plate (31) is in the closed position, the front smoke gathering plate (31) is located in the receiving groove (112), and the lower surface of the front smoke gathering plate (31) is flush with the rear lower end surface of the smoke guide plate (11).

5. The smoke collection structure according to claim 2, characterized in that, The smoke collection structure also includes: The mounting bracket (41) is fixed inside the smoke collection housing (1), and the bottom wall of the receiving groove (112) is provided with a through hole (1123); The rotating bracket (42) has a first end and a second end that are arranged opposite to each other. The first end is fixed to the front smoke baffle (31), and the second end is rotatably connected to the mounting bracket (41) through a damping element. The rotating bracket (42) is rotatably inserted through the through hole (1123) about the axis of its own rotation relative to the mounting bracket (41).

6. The smoke collection structure according to any one of claims 1 to 5, characterized in that, The smoke guide plate (11) is equipped with a first magnetic suction member (51), and the front smoke gathering plate (31) is provided with a second magnetic suction member (52); when the front smoke gathering plate (31) is in the closed position, the first magnetic suction member (51) and the second magnetic suction member (52) can attract each other; And / or, when the front smoke baffle (31) is in the open position, the front smoke baffle (31) is arranged vertically.

7. The smoke collection structure according to any one of claims 1 to 5, characterized in that, A light (2) is installed on the smoke guide plate (11); When the front smoke baffle (31) is in the open position, the front smoke baffle (31) is located in front of the lighting lamp (2); when the front smoke baffle (31) is in the closed position, the lighting lamp (2) is located above the front smoke baffle (31), and the front smoke baffle (31) has a transparent structure (311) at least in the preset area directly opposite the lighting lamp (2).

8. The smoke collection structure according to any one of claims 1 to 5, characterized in that, The smoke collection housing (1) is connected to side smoke gathering plates (32) on both the left and right sides. The top smoke inlet (111) is located between the two side smoke gathering plates (32) in the left and right direction. When the front smoke gathering plate (31) is in the open position, the front smoke gathering plate (31) and the two side smoke gathering plates (32) surround each other to form a smoke gathering area.

9. The smoke collection structure according to any one of claims 1 to 5, characterized in that, The front panel (12) of the smoke collection housing (1) is provided with a side smoke port (121) located below the top smoke port (111).

10. A fume extraction device, characterized in that, Includes the smoke collection structure as described in any one of claims 1 to 9.

Images