Smoke gathering plate limiting structure and range hood

Abstract

The utility model discloses a smoke gathering plate limiting structure and a range hood, and belongs to the technical field of kitchen appliances. The smoke gathering plate limiting structure comprises a rotating hook, a driving assembly and a limiting assembly, the driving assembly comprises a motor, a driving rotating shaft of the motor is connected to the rotating hook to drive the rotating hook to rotate, and the motor can move along with movement of the rotating hook; one end of the limiting assembly is movably connected with the rotating hook, the other end of the limiting assembly is movably connected with the range hood shell, the limiting assembly is further movably connected with the motor, and the limiting assembly is used for limiting the opening and closing distance of the smoke gathering plate. According to the smoke gathering plate limiting structure, the technical scheme of motor driving and follow-up is adopted, opening and closing limiting of the smoke gathering plate is achieved, the problem that in an existing push rod motor direct pushing scheme, a push rod motor is prone to being polluted by oil stains is solved, meanwhile, the problem that a driving assembly occupies a large internal space of a range hood shell is solved, and the structure is simple and easy to assemble.

Description

Technical Field

[0001] This utility model relates to the field of kitchen appliance technology, and in particular to a smoke-collecting plate limiting structure and a range hood. Background Technology

[0002] Range hoods are widely used electrical appliances in kitchens to remove cooking fumes. For example... Figure 1 As shown, a range hood typically includes a hood housing 100' and a smoke collection plate 200'. The hood housing 100' has a smoke inlet. When the range hood is not working, the smoke collection plate 200' is in a closed state, blocking the smoke inlet. When the range hood is working, the smoke collection plate 200' is in an open state, flipped outward and opening the smoke inlet. At this time, the smoke collection plate 200' can effectively collect smoke.

[0003] like Figures 2 to 4 As shown, in most side-suction range hoods currently on the market, the smoke collection plate 200' is connected to the range hood housing 100' via a rotating hook 400'. The range hood housing 100' is equipped with a hook seat 101', and the rotating hook 400' is rotatably connected to the hook seat 101'. The opening and closing of the smoke collection plate 200' is achieved by direct pushing with a push rod motor 300'. Using a direct-push design, the push rod motor 300' will inevitably be exposed inside the smoke collection chamber, and the extension rod 301' of the push rod motor 300' will be contaminated with oil, reducing the lifespan of the push rod. Figure 5 and Figure 6 As shown, if the push rod motor is placed inside the range hood housing 100', the entire drive mechanism occupies a relatively large space, which is not conducive to the development of a thinner and smaller range hood.

[0004] Therefore, there is an urgent need to design a smoke collection plate limiting structure and a range hood to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to propose a smoke-collecting plate limiting structure and a range hood having the same, which can reduce the pollution of the drive components by oil stains and at the same time reduce the space occupied by the drive components.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] The smoke collection plate limiting structure includes:

[0008] The rotating hook includes a first hook arm and a second hook arm arranged at an angle. The first hook arm is connected to the smoke hood housing, and the second hook arm is connected to the smoke collection plate.

[0009] The drive assembly includes a motor, the motor's drive shaft being connected to the rotating hook to drive the rotating hook to rotate, and the motor being able to move following the movement of the rotating hook;

[0010] A limiting component is included, with one end movably connected to the rotating hook and the other end movably connected to the smoke hood housing. The limiting component is also movably connected to the motor. The limiting component is used to limit the opening and closing distance of the smoke-gathering plate.

[0011] As a preferred technical solution of the above-mentioned smoke-collecting plate limiting structure, the limiting component includes a first limiting link and a second limiting link. One end of the first limiting link is movably connected to the rotating hook, one end of the second limiting link is movably connected to the other end of the first limiting link, and the other end of the second limiting link is movably connected to the smoke machine housing. The connection point of the first limiting link and the second limiting link is movably connected to the motor.

[0012] As a preferred technical solution of the above-mentioned smoke-collecting plate limiting structure, the driving component further includes a connecting piece, one end of which is connected to the active rotating shaft of the motor, and the other end is connected to the rotating hook. One end of the first limiting link is rotatably connected to the connecting piece.

[0013] As a preferred technical solution of the above-mentioned smoke-collecting plate limiting structure, the connecting piece is disposed at the connection between the first hook arm and the second hook arm. The connecting piece includes three connecting parts, which are not collinear. One of the connecting parts is connected to the active rotation shaft of the motor, and the other two connecting parts are respectively connected to the first hook arm and the second hook arm.

[0014] As a preferred technical solution of the above-mentioned smoke-collecting plate limiting structure, the limiting component further includes a connecting rod, one end of which is rotatably connected to the motor, and the other end of which is rotatably connected to the connection point of the first limiting rod and the second limiting rod.

[0015] As a preferred technical solution of the above-mentioned smoke-collecting plate limiting structure, a driven rotating shaft is provided on the other side of the motor opposite to the active rotating shaft, and the connecting rod is rotatably connected to the driven rotating shaft.

[0016] As a preferred technical solution of the above-mentioned smoke gathering plate limiting structure, the limiting component further includes a limiting support, the limiting support is detachably connected to the smoke machine housing, the second limiting link is rotatably connected to the limiting support, the limiting support is provided with a first limiting surface and a second limiting surface, the second limiting link can cooperate with the first limiting surface to limit the fully open position of the smoke gathering plate, and the second limiting link can also cooperate with the second limiting surface to limit the fully closed position of the smoke gathering plate;

[0017] A maintenance window is provided on the casing of the range hood, and the maintenance window is positioned directly opposite the limiting support. The limiting support can be removed from the casing of the range hood through the maintenance window.

[0018] As a preferred technical solution of the above-mentioned smoke-collecting plate limiting structure, the limiting support is provided with a limiting groove, the second limiting connecting rod is provided with a rotating shaft, the rotating shaft is placed in the limiting groove and rotates with the limiting groove, the two groove walls of the limiting groove are the first limiting surface and the second limiting surface respectively, and the rotating shaft is provided with a limiting protrusion, the limiting protrusion rotates with the rotating shaft and can abut against the first limiting surface or the second limiting surface.

[0019] As a preferred technical solution of the above-mentioned smoke gathering plate limiting structure, the smoke gathering plate limiting structure further includes an oil blocking component. The oil blocking component is detachably installed on the inner side wall of the smoke gathering plate and passes through a through hole opened on the smoke machine housing. The oil blocking component can unfold as the smoke gathering plate rotates.

[0020] When the smoke-collecting plate is in the fully closed position, the rotating hook, the driving assembly, and the limiting assembly are all located within the accommodating space of the oil-blocking member; when the smoke-collecting plate is in the fully open position, the end of the oil-blocking member away from the smoke-collecting plate does not detach from the through hole.

[0021] To achieve this objective, the present invention also adopts the following technical solution:

[0022] A range hood includes the aforementioned smoke-collecting plate limiting structure.

[0023] This utility model discloses a smoke-collecting plate limiting structure, including a rotating hook, a driving assembly, and a limiting assembly. The rotating hook includes a first hook arm and a second hook arm arranged at an angle. The first hook arm is connected to the smoke machine housing, and the second hook arm is connected to the smoke-collecting plate. The driving assembly includes a motor, and the motor's active rotation shaft is connected to the rotating hook to drive the rotating hook to rotate. The motor can follow the movement of the rotating hook. One end of the limiting assembly is movably connected to the rotating hook, and the other end is movably connected to the smoke machine housing. The limiting assembly is also movably connected to the motor and is used to limit the opening and closing distance of the smoke-collecting plate. This smoke-collecting plate limiting structure uses a motor-driven and follow-up technical solution to achieve the opening and closing limiting of the smoke-collecting plate, solving the problem that the push rod motor is easily contaminated by oil in the existing push rod motor direct push solution. It also solves the problem that the driving assembly occupies a large amount of internal space in the smoke machine housing, and the structure is simple and easy to assemble.

[0024] The range hood disclosed in this utility model includes the aforementioned smoke-collecting plate limiting structure. This range hood solves the problems of the push rod motor being easily contaminated by oil stains and the large space occupied by the drive component. Attached Figure Description

[0025] Figure 1 This is a structural diagram of a range hood provided by existing technology;

[0026] Figure 2 This is a side view of a range hood with its smoke collection panel open, provided by existing technology;

[0027] Figure 3 This is a side sectional view of a range hood with its smoke collection plate closed, provided by existing technology;

[0028] Figure 4 This is a side sectional view of a range hood with its smoke collection plate open, provided by existing technology;

[0029] Figure 5 This is a structural diagram of another range hood provided by existing technology;

[0030] Figure 6 This is a side view of another range hood with its smoke collection plate open, provided by existing technology.

[0031] Figure 7 This is a schematic diagram of the structure of the range hood provided in this embodiment of the utility model;

[0032] Figure 8 This is a side view of the range hood with its smoke collection plate fully open according to the embodiment of this utility model;

[0033] Figure 9 This is a side sectional view of the range hood provided in this embodiment of the utility model;

[0034] Figure 10 This is a partial structural diagram of the range hood provided in this embodiment of the utility model. Figure 1 ;

[0035] Figure 11 This is a schematic diagram of the structure of the motor provided in this embodiment of the utility model;

[0036] Figure 12 This is a partial structural diagram of the range hood provided in this embodiment of the utility model. Figure 2 ;

[0037] Figure 13 This is a side sectional view of the range hood with the smoke collection plate fully closed according to the embodiment of this utility model;

[0038] Figure 14 This is a side sectional view of the range hood with the smoke collection plate opened to 1 / 4 according to the embodiment of this utility model;

[0039] Figure 15 This is a side sectional view of the range hood with the smoke collection plate opened to 1 / 2 according to the embodiment of this utility model;

[0040] Figure 16 This is a side sectional view of the range hood provided in this embodiment of the present invention when the smoke collection plate is opened to 3 / 4.

[0041] Figure 17 This is a side sectional view of the range hood with the smoke collection plate fully opened according to the embodiment of this utility model;

[0042] Figure 18 This is a cross-sectional view of the structure of the limiting component of the range hood when the smoke collection plate is fully closed, provided in this embodiment of the utility model.

[0043] Figure 19 This is a cross-sectional view of the limiting component of the range hood's smoke collection plate during the opening process provided in this embodiment of the utility model;

[0044] Figure 20 This is a cross-sectional view of the structure of the limiting component of the range hood when the smoke collection plate is fully opened, provided in this embodiment of the utility model.

[0045] Figure 21 This is a schematic diagram of the structure of the second limiting link provided in this embodiment of the utility model;

[0046] Figure 22 This is a side view of a range hood with an oil-blocking component provided in an embodiment of this utility model;

[0047] Figure 23 This is a schematic diagram of the structure of a range hood with an oil-blocking component provided in this embodiment of the utility model;

[0048] Figure 24 This is a partial structural diagram of the range hood provided in this embodiment of the utility model. Figure 3 ;

[0049] Figure 25 This is a partial structural diagram of the range hood provided in this embodiment of the utility model. Figure 4 ;

[0050] Figure 26 This is a partial structural diagram of the range hood provided in this embodiment of the utility model. Figure 5 ;

[0051] Figure 27 This is a schematic diagram of the two hinge points of the connecting piece of the range hood when the smoke collection plate is fully opened according to the embodiment of this utility model;

[0052] Figure 28 This is a schematic diagram showing that both hinge points of the connecting piece of the range hood provided in this embodiment of the invention are fully exposed.

[0053] In the picture:

[0054] 1. Rotating hook; 2. Motor; 3. First limit link; 4. Second limit link; 5. Connecting plate; 6. Connecting link; 7. Limit support; 8. Oil baffle;

[0055] 21. Active rotating shaft; 22. Driven rotating shaft; 41. Limiting protrusion; 71. First limiting surface; 72. Second limiting surface;

[0056] 100. Range hood housing; 101. Hook base; 102. Maintenance window; 103. Side baffle; 200. Smoke collection plate;

[0057] 100', Smoke hood housing; 101', Hook base; 200', Smoke collection plate; 300', Push rod motor; 400', Rotating hook. Detailed Implementation

[0058] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0059] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0060] Furthermore, 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0061] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., 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, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0062] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0063] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0064] like Figure 7 As shown, this embodiment provides a range hood, which includes a range hood housing 100 and a smoke collection plate 200. The range hood housing 100 has a smoke inlet. When the range hood is not working, the smoke collection plate 200 is in a closed state that blocks the smoke inlet. When the range hood is working, the smoke collection plate 200 is in an open state that flips outward and opens the smoke inlet. At this time, the smoke collection plate 200 can play the role of collecting smoke.

[0065] To limit the opening and closing of the smoke collection plate 200, the range hood also includes a smoke collection plate limiting structure, which is located between the range hood housing 100 and the smoke collection plate 200.

[0066] like Figure 8 and Figure 9As shown, the smoke-collecting plate limiting structure in this embodiment includes a rotating hook 1. The rotating hook 1 includes a first hook arm and a second hook arm. The first hook arm is connected to the smoke machine housing 100, and the second hook arm is connected to the smoke-collecting plate 200. The first hook arm and the second hook arm are arranged at an angle.

[0067] Specifically, such as Figure 10 As shown, the range hood housing 100 is provided with a hook seat 101. A first hook arm is rotatably connected to the hook seat 101 via a pivot, and a second hook arm is fixedly connected to the inner surface of the smoke collection plate 200. When the hook 1 rotates around the pivot of the hook seat 101, it can drive the smoke collection plate 200 to flip open and close. To achieve the above structure, the hook seat 101 is installed on the inner surface of the range hood housing 100 near the smoke collection plate 200. The front end of the first hook arm is rotatably connected to the hook seat 101 and extends from the hook seat 101 toward the interior of the range hood housing 100. The rear end of the second hook arm is connected to the rear end of the first hook arm and extends from this connection toward the smoke inlet. The front end of the second hook arm is fixedly connected to the smoke collection plate 200. It should be noted that the "front" and "rear" directions defined here refer to the usage direction of the range hood. The "front side" of the range hood can be understood as the side closer to the user, and the "rear side" of the range hood can be understood as the side farther away from the user.

[0068] The first hook arm and the second hook arm can be integrally formed or separate structures that are fixedly connected. This embodiment does not impose any specific restrictions on this.

[0069] To enable the rotation of the rotating hook 1, the range hood in this embodiment also includes a drive assembly, the output end of which is connected to the rotating hook 1. Specifically, the output end of the drive assembly can be connected to the first hook arm, the second hook arm, or the connection between the first and second hook arms, as long as it does not interfere with the movement trajectory of the rotating hook 1.

[0070] The drive component in this embodiment includes a motor 2, such as... Figure 11 and Figure 12 As shown, the motor 2 is equipped with a drive rotating shaft 21, which is connected to the rotating hook 1 to drive the rotating hook 1 to rotate. The motor 2 can move in tandem with the movement of the rotating hook 1. When the motor 2 is working, the drive rotating shaft 21 rotates, driving the rotating hook 1 to move, thereby driving the smoke collecting plate 200 to rotate and open / close. At the same time, the motor 2 can move in tandem with the movement of the rotating hook 1; that is, the motor 2 is a follower motor. Compared with the push rod motor in the prior art, the motor 2 occupies less space.

[0071] Continue to refer to Figures 9 to 12As shown, the drive assembly in this embodiment also includes a connecting piece 5. One end of the connecting piece 5 is rotatably connected to the active rotating shaft 21 of the motor 2, and the other end is fixedly connected to the rotating hook 1. Specifically, the connecting piece 5 is disposed at the connection between the first hook arm and the second hook arm of the rotating hook 1. The connecting piece 5 includes three connecting parts, which are not collinear and can be arranged in a triangular pattern. One connecting part is rotatably connected to the active rotating shaft 21 of the motor 2, and the other two connecting parts are fixedly connected to the first hook arm and the second hook arm, respectively. The motor 2 drives the connecting piece 5 to rotate, thereby driving the rotating hook 1 to rotate, and thus pushing the smoke collecting plate 200 to flip open and close. Specifically, when the active rotating shaft 21 of the motor 2 rotates counterclockwise, it drives the connecting piece 5 to move downward and forward, thereby driving the rotating hook 1 to rotate forward and outward, and thus pushing open the smoke collecting plate 200; when the active rotating shaft 21 of the motor 2 rotates clockwise, it drives the connecting piece 5 to move upward and backward, thereby driving the rotating hook 1 to rotate backward and inward, and thus pulling back the smoke collecting plate 200.

[0072] One end of the limiting component is movably connected to the rotating hook 1, and the other end is movably connected to the range hood housing 100. The limiting component is also movably connected to the motor 2. In this structure, the limiting component is used to limit the opening and closing distance of the smoke-collecting plate 200, that is, to limit the fully open and fully closed positions of the smoke-collecting plate 200. More specifically, the limiting component includes a first limiting link 3 and a second limiting link 4. One end of the first limiting link 3 is movably connected to the connecting piece 5, and one end of the second limiting link 4 is movably connected to the other end of the first limiting link 3. The other end of the second limiting link 4 is movably connected to the range hood housing 100. The connection point of the first limiting link 3 and the second limiting link 4 is movably connected to the motor 2. Specifically, one end of the first limiting link 3 can be hinged to the connecting piece 5, and one end of the second limiting link 4 can be hinged to the other end of the first limiting link 3. The other end of the second limiting link 4 is hinged to the range hood housing 100.

[0073] Continue to refer to Figure 9 and Figure 10 As shown, the limiting component in this embodiment also includes a connecting rod 6. One end of the connecting rod 6 is rotatably connected to the motor 2, and the other end of the connecting rod 6 is rotatably connected to the hinge point of the first limiting rod 3 and the second limiting rod 4, specifically, it can be a hinge. By setting the connecting rod 6, the position of the rotating hook 1 and the position of the second limiting rod 4 are constrained and limited. The first limiting rod 3 and the second limiting rod 4 together limit the opening and closing distance of the smoke gathering plate 200. At the same time, because of the hinge between the connecting rod 6 and the two limiting rods, the motor 2 can be stably suspended between the connecting rod 6 and the connecting piece 5, so that while driving the connecting piece 5 to move, the motor 2 can move along with the movement of the connecting piece 5.

[0074] Optionally, such as Figure 11As shown, a driven rotating shaft 22 is provided on the other side of the motor 2 opposite to the driving rotating shaft 21, and the connecting rod 6 is rotatably connected to the driven rotating shaft 22. That is, the driven rotating shaft 22 is fixedly mounted on the motor 2, and the connecting rod 6 can rotate freely around the driven rotating shaft 22. Figures 13 to 17 The diagram shown is a schematic representation of the opening and closing motion of the smoke-collecting plate 200 in this embodiment.

[0075] The limiting assembly also includes a limiting support 7, which is connected to the range hood housing 100. The second limiting link 4 is rotatably connected to the limiting support 7, such as... Figures 18 to 20 As shown, the limiting support 7 is provided with a first limiting surface 71 and a second limiting surface 72. The second limiting connecting rod 4 can cooperate with the first limiting surface 71 to limit the fully open position of the smoke gathering plate 200, and the second limiting connecting rod 4 can also cooperate with the second limiting surface 72 to limit the fully closed position of the smoke gathering plate 200. This structure realizes the opening and closing limiting of the smoke gathering plate 200, and the structure is simple and easy to implement. Optionally, the limiting support 7 is detachably connected to the smoke machine housing 100, which facilitates the disassembly of the limiting support 7.

[0076] Specifically, the limiting support 7 is provided with a limiting groove, and the second limiting connecting rod 4 is provided with a rotating shaft. The rotating shaft is placed in the limiting groove and rotates in cooperation with the limiting groove. The two groove walls of the limiting groove are the first limiting surface 71 and the second limiting surface 72, respectively. Figure 21 As shown, a limiting protrusion 41 is provided on the rotating shaft. The limiting protrusion 41 rotates with the rotating shaft and can abut against the first limiting surface 71 or the second limiting surface 72, thereby limiting the opening and closing positions of the smoke plate 200.

[0077] In this embodiment, a horizontally oriented limiting groove is formed on the limiting support 7. The limiting groove has two opposing walls, the upper wall of which is the first limiting surface 71, and the lower wall of which is the second limiting surface 72. In the closed state, the limiting protrusion 41 is in close contact with the lower wall of the limiting groove, i.e., the second limiting surface 72. During the opening and closing movement of the smoke collecting plate 200, the limiting protrusion 41 moves between the upper and lower walls, from the lower wall to the upper wall. In the fully open state, the limiting protrusion 41 is in close contact with the upper wall of the limiting groove, i.e., the first limiting surface 71, thereby limiting the overall opening and closing distance of the smoke collecting plate 200.

[0078] Specifically, such as Figure 21 As shown, the second limiting link 4 is a U-shaped link, including two opposing straight arms and a rotating shaft positioned between the two straight arms. As the second limiting link 4 rotates, as... Figure 18 As shown, when the limiting protrusion 41 abuts against the second limiting surface 72, the smoke-collecting plate 200 is in the fully closed position; Figure 19As shown, during the opening and closing movement of the smoke-collecting plate 200, the limiting protrusion 41 moves between the first limiting surface 71 and the second limiting surface 72; as Figure 20 As shown, when the limiting protrusion 41 on the rotating shaft abuts against the first limiting surface 71, the smoke gathering plate 200 is in the fully open position.

[0079] like Figure 22 and Figure 23 As shown, the smoke-collecting plate limiting structure in this embodiment also includes an oil-blocking component 8. The oil-blocking component 8 is detachably installed on the inner side wall of the smoke-collecting plate 200 and passes through a through hole opened in the smoke machine housing 100. The oil-blocking component 8 can unfold as the smoke-collecting plate 200 rotates. Optionally, the oil-blocking component 8 can be assembled and fixed to the smoke-collecting plate 200 by screws or clips. When the smoke-collecting plate 200 is fully open, the oil-blocking component 8 can be detached from the smoke-collecting plate 200.

[0080] like Figure 26 As shown, the oil baffle 8 includes two side plates and a bottom plate. The two side plates are arranged opposite each other and connected by the bottom plate. The three together enclose an accommodating space. The oil baffle 8 has openings at the front and top. The front opening is connected to the inner wall of the smoke collecting plate 200, that is, the front ends of the two side plates are respectively connected to the inner wall of the smoke collecting plate 200. The top opening is used to avoid structural components such as the drive assembly and the limiting assembly. Optionally, as Figure 25 As shown, the bottom plate is an arc-shaped plate, and its arc length is optimally designed so that when the smoke gathering plate 200 is fully closed, the rear end of the bottom plate can almost contact (with a certain gap) the top plate of the smoke machine housing 100.

[0081] When the smoke-collecting plate 200 is in the fully closed position, the oil-blocking component 8 is completely located inside the range hood housing 100, and the rotating hook 1, drive assembly, and limiting assembly are all located within the receiving space of the oil-blocking component 8. When the smoke-collecting plate 200 is in the fully open position, the end of the oil-blocking component 8 away from the smoke-collecting plate 200 does not detach from the through hole. By setting the oil-blocking component 8, on the one hand, when the range hood is absorbing smoke, the oil-blocking component 8 can block the smoke escaping from the front to the side, that is, ensure that the smoke cannot escape from the inside to the outside through the through hole; on the other hand, since the end of the oil-blocking component 8 away from the smoke-collecting plate 200 does not detach from the through hole when the smoke-collecting plate 200 is fully open, only the oil-blocking component 8 is exposed in the smoke absorption area at this time, while the rotating hook 1, drive assembly, and limiting assembly are all located inside the oil-blocking component 8 or the range hood housing 100. In other words, the oil-blocking component 8 can also prevent the rotating hook 1, drive assembly, and limiting assembly from being contaminated by smoke.

[0082] To prevent oil fumes from entering the range hood housing 100 and contaminating the drive components, such as... Figure 24As shown, a side baffle 103 is provided inside the range hood housing 100. The side baffle 103 is installed on the inner wall of the range hood housing 100, dividing the internal space of the range hood housing 100 into two relatively independent spaces, so as to separate the above-mentioned smoke collection plate limiting structure. This structure can reduce the pollution of the smoke collection plate limiting structure by oil stains, especially the pollution of the drive components.

[0083] In existing technologies, the installation and maintenance of the push rod motor inside the smoke hood housing 100 are quite complex and difficult. Therefore, in this embodiment, to facilitate maintenance of the smoke plate limiting structure, especially the drive assembly, as follows: Figure 24 and Figure 25 As shown, a maintenance window 102 is provided on the range hood housing 100. The maintenance window 102 is positioned directly opposite the limiting support 7, facilitating the removal of the limiting support 7 from the range hood housing 100 and then taking out the entire smoke-collecting plate limiting structure. The specific process can be as follows: Figures 25 to 26 As shown, first hold the smoke collecting plate 200, then remove the limiting support 7 from the smoke machine housing 100. The first limiting link 3 and the second limiting link 4 on the limiting support 7 simultaneously lose their limiting function. At this point, holding the limiting support 7, the smoke collecting plate 200 is no longer restricted, and the motor 2 is suspended and can rotate accordingly. The smoke collecting plate 200 can then be opened to an angle greater than the fully open position, such as... Figure 27 and Figure 28 As shown, the two hinge points A and B of the connecting piece 5 and the rotating hook 1 are fully exposed. After disassembling the connecting piece 5, the drive assembly and the limiting assembly can be separated from the smoke collection plate 200, and then the whole assembly can be taken out for maintenance.

[0084] In this embodiment, the smoke collection plate limiting structure adopts a motor 2 drive and follow-up technology to realize the opening and closing limiting of the smoke collection plate 200. This solves the problem that the push rod motor is easily contaminated by oil in the existing push rod motor direct push scheme. At the same time, it also solves the problem that the drive component occupies a large amount of internal space in the smoke machine housing 100. Moreover, the structure is simple and easy to assemble.

[0085] Since the range hood in this embodiment includes the aforementioned smoke-collecting plate limiting structure, the technical advantages and effects that the range hood can achieve also include the technical advantages and effects that the smoke-collecting plate limiting structure can achieve, which will not be repeated here.

[0086] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments. Many other equivalent embodiments may be included without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A smoke-collecting plate limiting structure, characterized in that, include: The rotating hook (1) includes a first hook arm and a second hook arm arranged at an angle, the first hook arm being connected to the smoke machine housing (100), and the second hook arm being connected to the smoke collection plate (200). The drive assembly includes a motor (2), the motor (2) having a drive shaft (21) connected to the rotating hook (1) to drive the rotating hook (1) to rotate, and the motor (2) being able to move in accordance with the movement of the rotating hook (1); and, The limiting component is movably connected at one end to the rotating hook (1) and at the other end to the smoke machine housing (100). The limiting component is also movably connected to the motor (2). The limiting component is used to limit the opening and closing distance of the smoke gathering plate (200).

2. The smoke-collecting plate limiting structure according to claim 1, characterized in that, The limiting assembly includes a first limiting link (3) and a second limiting link (4). One end of the first limiting link (3) is movably connected to the rotating hook (1), and one end of the second limiting link (4) is movably connected to the other end of the first limiting link (3). The other end of the second limiting link (4) is movably connected to the smoke machine housing (100). The connection point of the first limiting link (3) and the second limiting link (4) is movably connected to the motor (2).

3. The smoke-collecting plate limiting structure according to claim 2, characterized in that, The drive assembly also includes a connecting piece (5), one end of which is connected to the active rotating shaft (21) of the motor (2) and the other end is connected to the rotating hook (1). One end of the first limiting link (3) is rotatably connected to the connecting piece (5).

4. The smoke-collecting plate limiting structure according to claim 3, characterized in that, The connecting piece (5) is disposed at the connection between the first hook arm and the second hook arm. The connecting piece (5) includes three connecting parts, which are not collinear. One of the connecting parts is connected to the active rotating shaft (21) of the motor (2), and the other two connecting parts are connected to the first hook arm and the second hook arm respectively.

5. The smoke-collecting plate limiting structure according to claim 2, characterized in that, The limiting assembly also includes a connecting rod (6), one end of which is rotatably connected to the motor (2), and the other end of which is rotatably connected to the connection point of the first limiting rod (3) and the second limiting rod (4).

6. The smoke-collecting plate limiting structure according to claim 5, characterized in that, A driven rotating shaft (22) is provided on the other side of the motor (2) opposite to the active rotating shaft (21), and the connecting rod (6) is rotatably connected to the driven rotating shaft (22).

7. The smoke-collecting plate limiting structure according to any one of claims 2-6, characterized in that, The limiting component also includes a limiting support (7), which is detachably connected to the smoke machine housing (100). The second limiting link (4) is rotatably connected to the limiting support (7). The limiting support (7) is provided with a first limiting surface (71) and a second limiting surface (72). The second limiting link (4) can cooperate with the first limiting surface (71) to limit the fully open position of the smoke gathering plate (200). The second limiting link (4) can also cooperate with the second limiting surface (72) to limit the fully closed position of the smoke gathering plate (200). A maintenance window (102) is provided on the casing (100) of the range hood. The maintenance window (102) is located opposite the limiting support (7). The limiting support (7) can be removed from the casing (100) of the range hood through the maintenance window (102).

8. The smoke-collecting plate limiting structure according to claim 7, characterized in that, The limiting support (7) is provided with a limiting groove, and the second limiting connecting rod (4) is provided with a rotating shaft. The rotating shaft is placed in the limiting groove and rotates with the limiting groove. The two groove walls of the limiting groove are the first limiting surface (71) and the second limiting surface (72), respectively. The rotating shaft is provided with a limiting protrusion (41). The limiting protrusion (41) rotates with the rotating shaft and can abut against the first limiting surface (71) or the second limiting surface (72).

9. The smoke-collecting plate limiting structure according to any one of claims 1-6, characterized in that, The smoke collection plate limiting structure also includes an oil baffle (8), which is detachably installed on the inner side wall of the smoke collection plate (200) and passes through the through hole opened on the smoke machine housing (100). The oil baffle (8) can unfold as the smoke collection plate (200) rotates. When the smoke-collecting plate (200) is in the fully closed position, the rotating hook (1), the driving assembly and the limiting assembly are all located within the accommodating space of the oil-blocking member (8); when the smoke-collecting plate (200) is in the fully open position, the end of the oil-blocking member (8) away from the smoke-collecting plate (200) does not detach from the through hole.

10. A range hood, characterized in that, Includes the smoke-collecting plate limiting structure as described in any one of claims 1-9.

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