Opening and closing device and combined electric appliance

Abstract

The invention discloses an opening and closing device and a combined electric appliance, the opening and closing device comprises a first base, a second base, a first panel, a second panel and a driving mechanism, the second base and the first base are arranged alternately, the first panel is arranged between the first base and the second base and movably connected with the first base and the second base, and the driving mechanism is arranged between the first panel and the second panel. The second panel is arranged between the first base and the second base and movably connected with the first base and the second base, the driving mechanism is in driving connection with the first panel and the second panel, and the driving mechanism is suitable for driving the first panel and the second panel to move so as to open and close the suction opening. The second panel and the first panel are respectively connected with the driving mechanism, the driving mechanism can synchronously drive the second panel and the first panel, so that the suction opening is closed and opened, the driving mechanisms do not need to be independently arranged on the second panel and the first panel respectively, control logic is simplified, occupied space is reduced, and cost is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of household appliances, and in particular to an opening and closing device and a combined appliance. Background Art

[0002] A range hood or an appliance integrated with a range hood can exhaust the fumes generated during cooking to prevent the fumes from spreading in the kitchen. In the related art, the exhaust vents of the range hood or the appliance integrated with the range hood are open regardless of whether they are working or not, which can easily lead to foreign objects entering the range hood. In the related art, a switch device is provided to open and close the exhaust vents, but the switch device has high cost, complex control, and is inconvenient to disassemble and repair. Summary of the invention

[0003] The present application aims to solve one of the technical problems in the related art at least to a certain extent. To this end, the present application proposes an opening and closing device.

[0004] To achieve the above objectives, the present application discloses an opening and closing device, which includes:

[0005] First Pedestal;

[0006] A second base is arranged alternately with the first base;

[0007] A first panel is disposed between the first base and the second base and is movably connected to the first base and the second base respectively;

[0008] A second panel is disposed between the first base and the second base and is movably connected to the first base and the second base respectively; and

[0009] The driving mechanism is connected to the first panel and the second panel respectively, and the driving mechanism is suitable for driving the first panel and the second panel to move so as to open and close the air outlet.

[0010] In some embodiments of the present application, the driving mechanism is suitable for moving along a first direction to drive the first panel and the second panel to open the exhaust port, and is suitable for moving along a second direction to drive the first panel and the second panel to close the exhaust port; the first direction and the second direction are opposite.

[0011] In some embodiments of the present application, the driving mechanism has a rotating shaft suitable for outputting power, and the rotating shaft is suitable for rotating along the first direction and the second direction.

[0012] In some embodiments of the present application, the driving mechanism is suitable for driving the first panel and the second panel to move toward each other to close the air outlet, and is suitable for driving the first panel and the second panel to move away from each other to open the air outlet.

[0013] In some embodiments of the present application, the opening and closing device includes a connecting rod mechanism, and the driving mechanism and the connecting rod mechanism are drivingly connected to drive the first panel and the second panel to move through the connecting rod mechanism.

[0014] In some embodiments of the present application, the linkage mechanism includes:

[0015] A first gear arm is configured to be rotatable and connected to the first panel;

[0016] a second gear arm, configured to be rotatable and connected to the second panel;

[0017] a first gear, configured to be rotatable and meshing with the first gear arm;

[0018] a second gear, configured to be rotatable and meshing with the second gear arm;

[0019] A first connecting rod is rotatably connected to the first gear and can drive the first gear to rotate;

[0020] a second connecting rod rotatably connected to the second gear and capable of driving the second gear to rotate; and

[0021] The main shaft connecting rod is arranged between the first connecting rod and the second connecting rod, and is rotatably connected to the first connecting rod and the second connecting rod respectively. The driving mechanism is connected to the main shaft connecting rod to drive the main shaft connecting rod to rotate.

[0022] In some embodiments of the present application, the opening and closing device includes a driven mechanism and a synchronous bracket, one end of the first panel and the second panel is connected to the connecting rod mechanism, and the other end is connected to the driven mechanism, and the synchronous bracket connects the connecting rod mechanism and the driven mechanism.

[0023] In some embodiments of the present application, the driven mechanism includes a first driven arm and a second driven arm, the first driven arm and the first gear arm are arranged alternately, the first driven arm is configured to be rotatable and connected to the first panel, the second driven arm and the second gear arm are arranged alternately, the second driven arm is configured to be rotatable and connected to the second panel;

[0024] The synchronous bracket includes a first synchronous bracket and a second synchronous bracket, the first synchronous bracket is connected to the first gear arm and the first driven arm respectively, and the second synchronous bracket is connected to the second gear arm and the second driven arm respectively.

[0025] In some embodiments of the present application, the driving mechanism is fixed to the first base, the first gear arm and the second gear arm are rotatably connected to the first base, and the first follower arm and the second follower arm are rotatably connected to the second base.

[0026] In some embodiments of the present application, the first gear arm and the second driven arm have the same structure, and the second gear arm and the first driven arm have the same structure.

[0027] In some embodiments of the present application, the first base includes a first inner base body and a first outer base body, and the first inner base body and the first outer base body are connected to each other to clamp the connecting rod mechanism;

[0028] And / or, the second base includes a second inner base body and a second outer base body, and the second inner base body and the second outer base body are connected to each other to clamp the driven mechanism.

[0029] In some embodiments of the present application, the first base and the second base are respectively provided with a first guide groove, the first panel is provided with a first sliding protrusion, and the first sliding protrusion is inserted into the first guide groove to guide the movement of the first panel;

[0030] The first base and the second base are respectively provided with a second guide groove, and the second panel is provided with a second sliding protrusion, and the second sliding protrusion is inserted into the second guide groove to guide the movement of the second panel.

[0031] In some embodiments of the present application, the first guide groove and the second guide groove of the first base, and the first guide groove and the second guide groove of the second base are respectively arranged in a figure eight shape.

[0032] In some embodiments of the present application, the number of the driving mechanism is one.

[0033] The present application also discloses a combined electrical appliance, which includes an exhaust module and the above-mentioned opening and closing device.

[0034] In some embodiments of the present application, the combined electrical appliance includes a surface panel, the surface panel has the air outlet, and the opening and closing device is arranged below the surface panel.

[0035] The technical solution of the present application is connected to the driving mechanism through the second panel and the first panel respectively, and the driving mechanism can synchronously drive the second panel and the first panel to close and open the exhaust port. When it is necessary to exhaust the oil fume, the exhaust port can be opened by the driving of the driving mechanism, and when it is not necessary to exhaust the oil fume, the exhaust port can be closed by the driving of the driving mechanism. It can not only realize the exhaust of oil fume, but also prevent foreign matter from entering. There is no need to set up driving mechanisms for the second panel and the first panel separately, which is conducive to simplifying the control logic, reducing space occupancy and reducing costs. By setting the first base and the second base, the first base and the second base provide support for the installation of various components, which is conducive to modularizing the opening and closing device and making installation and maintenance more convenient.

[0036] Other advantages of the present application will be partially given in the following description, partially become apparent from the following description, or be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other designs can be obtained based on the structures shown in these drawings without paying any creative work.

[0038] Figure 1 It is a partial schematic diagram of a combined electrical appliance in some embodiments (the exhaust port is in a closed state);

[0039] Figure 2 It is a partial schematic diagram of a combined electrical appliance in some embodiments (the exhaust port is in a punched state);

[0040] Figure 3 Schematic diagram of the opening and closing device in some embodiments (in a closed state);

[0041] Figure 4 Schematic diagram of the opening and closing device in some embodiments (in the open state);

[0042] Figure 5 An exploded view of an opening and closing device in some embodiments;

[0043] Figure 6 It is a partial schematic diagram of the opening and closing device in some embodiments (in a closed state);

[0044] Figure 7 It is a partial schematic diagram of the opening and closing device in some embodiments (in a closed state);

[0045] Figure 8 It is a partial schematic diagram of the opening and closing device in some embodiments (in a closed state);

[0046] Fig. 9 It is a partial schematic diagram of the opening and closing device in some embodiments (in the open state);

[0047] Fig.10 It is a partial schematic diagram of the opening and closing device in some embodiments (in the open state);

[0048] Fig.11 Schematic diagram of the connecting rod mechanism in some embodiments (in an open state);

[0049] Fig.12 Schematic diagram of the connecting rod mechanism in some embodiments (in a closed state).

[0050] Description of Figure Numbers:

[0051] The first base 1000, the first outer base body 1100, the first inner base body 1200, the first guide groove 1210, the second guide groove 1220, the second base 2000, the second outer base body 2100, the second inner base body 2200, the first guide groove 2210, the second guide groove 2220, the first panel 3000, the first bracket 3100, the first sliding protrusion 3200, the second panel 4000, the second bracket 4100, the second sliding protrusion 4200, the connecting rod mechanism 5000, Spindle connecting rod 5100, first connecting rod 5210, second connecting rod 5220, first gear 5310, second gear 5320, first gear arm 5410, second gear arm 5420, driven mechanism 6100, first driven arm 6110, second driven arm 6120, synchronous bracket 6200, first synchronous bracket 6210, second synchronous bracket 6220, driving mechanism 7000, rotating shaft 7100, surface panel 8000, exhaust port 8100.

[0052] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0053] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0054] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0055] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0056] In addition, in this application, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0057] The present application proposes an opening and closing device, combined with Figures 1 to 4 As shown, the opening and closing device includes a first base 1000, a second base 2000, a first panel 3000, a second panel 4000 and a driving mechanism 7000, the second base 2000 is arranged at a certain distance from the first base 1000, the second panel 4000 and the first panel 3000 are arranged between the second base 2000 and the first base 1000, and the second panel 4000 needs to be movably connected to the second base 2000 and the first base 1000 respectively, and the first panel 3000 is arranged between the second base 2000 and the first base 1000. 0 also needs to be movably connected to the second base 2000 and the first base 1000 respectively, and the driving mechanism 7000 needs to be drivingly connected to the second panel 4000 and the first panel 3000 at the same time, so that under the action of the driving mechanism 7000, the second panel 4000 and the first panel 3000 can be driven to move, so that the second panel 4000 and the first panel 3000 cooperate to open the exhaust port, and the second panel 4000 and the first panel 3000 cooperate to close the exhaust port 8100.

[0058] The second panel 4000 and the first panel 3000 are respectively connected to the driving mechanism 7000, and the driving mechanism 7000 can synchronously drive the second panel 4000 and the first panel 3000, so as to close and open the exhaust port 8100. When it is necessary to exhaust the oil fume, the exhaust port 8100 can be opened by the driving of the driving mechanism 7000, and when it is not necessary to exhaust the oil fume, the exhaust port 8100 can be closed by the driving of the driving mechanism 7000. This can not only realize the exhaust of oil fume, but also prevent foreign matter from entering. There is no need to separately set the driving mechanism 7000 for the second panel 4000 and the first panel 3000, which is conducive to simplifying the control logic, reducing the space occupied and reducing the cost. By setting the first base 1000 and the second base 2000, the first base 1000 and the second base 2000 provide support for the installation of various components, which is conducive to modularizing the opening and closing device and making it more convenient to install and maintain.

[0059] Specifically, the second base 2000 and the first base 1000 are used as bases for installing other components, and need to have a high structural strength. For example, the second base 2000 and the first base 1000 are injection molded parts, or sheet metal parts, or they can be connected by multiple materials and multiple structures, which are not limited in this embodiment. The second base 2000 and the first base 1000 need to be separated by a certain distance, for example Figure 3 and Figure 4 In the structure shown, the second base 2000 and the first base 1000 need to be arranged alternately along the front-to-back direction, and the second base 2000 is located behind the first base 1000. Generally speaking, the second base 2000 and the first base 1000 do not need to be exposed at the exhaust port 8100, that is, the second base 2000 and the first base 1000 are located around the exhaust port 8100 (the front and back sides), thereby avoiding obstruction to the airflow caused by the arrangement of the second base 2000 and the first base 1000.

[0060] The first panel 3000 is disposed between the second base 2000 and the first base 1000. The first panel 3000 needs to be movably connected to the second base 2000 and the first base 1000, respectively. The movably connected means that the first panel 3000 can be between the second base 2000 and the first base 1000, and can move relative to the second base 2000 and the first base 1000 to present a change in position. The same is true for the second panel 4000. The second panel 4000 is disposed between the second base 2000 and the first base 1000. The second panel 4000 needs to be movably connected to the second base 2000 and the first base 1000, respectively. The second panel 4000 can be between the second base 2000 and the first base 1000, and can move relative to the second base 2000 and the first base 1000 to present a change in position. Figure 3 and Figure 4As shown, the second base 2000 and the first base 1000 are arranged alternately along the front-to-back direction, and the second panel 4000 and the first panel 3000 are arranged along the left-to-right direction. Through the coordinated activities of the second panel 4000 and the first panel 3000, the air outlet 8100 can be opened and closed.

[0061] The activities of the second panel 4000 and the first panel 3000 need to be realized by the driving mechanism 7000. The driving mechanism 7000 is a component that can output power. For example, the driving mechanism 7000 is a motor. Of course, the driving mechanism 7000 can also be other types of components, such as a cylinder. The driving mechanism 7000 needs to be drivingly connected with the second panel 4000 and the first panel 3000. The so-called driving connection means that the power output by the driving mechanism 7000 can be transmitted to the second panel 4000 and the first panel 3000, thereby driving the activities of the second panel 4000 and the first panel 3000. The driving connection between the driving mechanism 7000 and the second panel 4000 and the first panel 3000 can be a direct driving connection or an indirect driving connection.

[0062] When it is necessary to extract the oil fume, the driving mechanism 7000 is activated, and the driving mechanism 7000 drives the second panel 4000 and the first panel 3000 to move, and the second panel 4000 and the first panel 3000 are switched from the state of closing the exhaust port 8100 to the state of opening the exhaust port 8100, so that the oil fume can be extracted through the exhaust port 8100; when it is not necessary to extract the oil fume, the driving mechanism 7000 is activated, and the driving mechanism 7000 drives the second panel 4000 and the first panel 3000 to move, and the second panel 4000 and the first panel 3000 are switched from the state of opening the exhaust port 8100 to the state of closing the exhaust port 8100, so that foreign matter can be prevented from entering the interior of the equipment (range hood, combined electrical appliance) through the exhaust port 8100.

[0063] It can be seen that the driving mechanism 7000 can synchronously drive the second panel 4000 and the first panel 3000. Therefore, there is no need to set up driving mechanisms 7000 for the second panel 4000 and the first panel 3000 respectively. This can reduce the number of driving mechanisms 7000, thereby effectively reducing costs. Reducing the number of driving mechanisms 7000 can also reduce space occupancy.

[0064] In some embodiments of the present application, the driving mechanism 7000 is designed to move along a first direction and along a second direction, the first direction and the second direction are opposite. When the driving mechanism 7000 moves along the first direction, the driving mechanism 7000 can drive the first panel 3000 and the second panel 4000 to move to open the exhaust port 8100. When the driving mechanism 7000 moves along the second direction, the driving mechanism 7000 can drive the first panel 3000 and the second panel 4000 to move to close the exhaust port 8100. Through such a configuration, the difficulty of driving connection between the driving mechanism 7000 and the second panel 4000 and the first panel 3000 respectively is reduced.

[0065] Specifically, the driving mechanism 7000 can only move in a single direction, but because the second panel 4000 and the first panel 3000 need to realize both closing and opening of the exhaust port 8100, if the driving mechanism 7000 only moves in a single direction, then a more complex transmission mechanism needs to be respectively provided between the driving mechanism 7000 and the second panel 4000 and the first panel 3000. The transmission mechanism needs to realize different activities of the second panel 4000 and the first panel 3000 under the premise of unidirectional movement of the driving mechanism 7000, which will greatly increase the complexity of the transmission mechanism. Therefore, in the present embodiment, the driving mechanism 7000 is designed to be able to move in two directions. In this way, the driving mechanism 7000 moves in one direction (the first direction) to open the exhaust port 8100, and moves in the other direction (the second direction) to close the exhaust port 8100. In this way, the transmission mechanism between the driving mechanism 7000 and the second panel 4000 and the first panel 3000 can be based on the same transmission mechanism. Driven by the two-way action of the driving mechanism 7000, different activities of the second panel 4000 and the first panel 3000 can be achieved, thereby reducing the difficulty of the driving connection between the driving mechanism 7000 and the second panel 4000 and the first panel 3000 respectively.

[0066] For example, combined with Figure 5 As shown, in some embodiments of the present application, the driving mechanism 7000 includes a rotating shaft 7100 for outputting power, and the rotating shaft 7100 can rotate along the first direction and the second direction. The driving mechanism 7000 can be a motor, and the motor has a rotating shaft 7100, and the rotating shaft 7100 can rotate along the first direction and along the second direction, so as to drive the second panel 4000 and the first panel 3000 to achieve different activities. Through the form of rotation, the structural complexity of the driving mechanism 7000 can be reduced, which is conducive to the realization of the driving connection.

[0067] Furthermore, combined with Figure 3 and Figure 4As shown, in some embodiments of the present application, the driving mechanism 7000 can drive the second panel 4000 and the first panel 3000 to move toward each other, so that the second panel 4000 cooperates with the first panel 3000 to close the exhaust port 8100. The driving mechanism 7000 can also drive the second panel 4000 and the first panel 3000 to move away from each other, so that the second panel 4000 and the first panel 3000 cooperate to open the exhaust port 8100. Through the toward and away movements of the second panel 4000 and the first panel 3000, the space occupied by the movement of the second panel 4000 and the first panel 3000 is reduced.

[0068] Specifically, the air vent 8100 has a certain area. If the air vent 8100 is to be closed, a plate corresponding to the area of ​​the air vent 8100 can be provided. However, in this case, since the area of ​​the plate is large (compatible with the air vent 8100), when the plate is used to open the air vent 8100, the plate needs to move a large distance, so it is necessary to provide space for the plate to move, which will cause the entire opening and closing device to occupy a large area. For this reason, in this embodiment, by designing the second panel 4000 and the first panel 3000, the air vent 8100 can be closed and opened by the cooperation of the second panel 4000 and the first panel 3000, and space can be reserved for the second panel 4000 and the first panel 3000 respectively. Compared with a whole plate, the use of space is more flexible.

[0069] Furthermore, the second panel 4000 and the first panel 3000 can move toward and away from each other. When the air outlet 8100 needs to be opened, the second panel 4000 and the first panel 3000 move away from each other and are arranged on opposite sides (left and right sides) of the air outlet 8100, making full use of the space on the left and right sides of the air outlet 8100, which is conducive to reducing the space occupation. A single whole panel can only use the space on one side of the air outlet 8100, which is not conducive to reducing the space occupation.

[0070] Combination Figure 3 and Figure 4As shown, when it is necessary to extract the oil smoke, the driving mechanism 7000 is activated, and the driving mechanism 7000 drives the second panel 4000 and the first panel 3000 to move in opposite directions (the first panel 3000 moves toward the lower left, and the second panel 4000 moves toward the lower back). The second panel 4000 and the first panel 3000 are switched from the state of closing the exhaust port 8100 to the state of opening the exhaust port 8100. The second panel 4000 and the first panel 3000 are respectively arranged at the exhaust port 8100. The left and right sides of 100 can thus realize the extraction of oil smoke through the exhaust port 8100; when it is not necessary to realize the extraction of oil smoke, the driving mechanism 7000 is actuated, and the driving mechanism 7000 drives the second panel 4000 and the first panel 3000 to move, and the second panel 4000 and the first panel 3000 move toward each other, switching from the state of opening the exhaust port 8100 to the state of closing the exhaust port 8100, and at this time, the second panel 4000 and the first panel 3000 are arranged side by side along the left and right directions.

[0071] Combination Figure 5 As shown, in some embodiments of the present application, the opening and closing device also includes a connecting rod mechanism 5000, and the connecting rod mechanism 5000 needs to be connected to the driving mechanism 7000, and the connecting rod mechanism 5000 also needs to be connected to the second panel 4000 and the first panel 3000. In this way, through the drive of the driving mechanism 7000, the driving mechanism 7000 can drive the connecting rod mechanism 5000 to move, and then drive the second panel 4000 and the first panel 3000 to move through the connecting rod mechanism 5000.

[0072] In this embodiment, the driving connection between the driving mechanism 7000 and the second panel 4000 and the first panel 3000 is an indirect driving connection, which needs to be realized through the connecting rod mechanism 5000. It can be understood that the air vent 8100 has a certain area, so the second panel 4000 and the first panel 3000 need to move to a certain extent to achieve the closing and opening of the air vent 8100, and the size / structure of the driving mechanism 7000 may not be able to match the movement of the second panel 4000 and the first panel 3000. For example, when the driving mechanism 7000 is a motor, the motor relies on its rotating shaft 7100 to achieve power output. Therefore, in the present embodiment, a connecting rod mechanism 5000 is provided between the driving mechanism 7000 and the second panel 4000 and the first panel 3000. The connecting rod mechanism 5000 is a movable component that can realize power transmission. By providing the connecting rod mechanism 5000, the power transmission between the driving mechanism 7000 and the second panel 4000 and the first panel 3000 can be better realized, thereby more conveniently controlling the movement of the second panel 4000 and the first panel 3000.

[0073] The connecting rod mechanism 5000 is realized by combining Figure 6 , Fig. 9 , Fig.11 and Fig.12 As shown, the linkage mechanism 5000 includes a first gear arm 5410, a second gear arm 5420, a first gear 5310, a second gear 5320, a first connecting rod 5210, a second connecting rod 5220 and a main shaft connecting rod 5100, the first gear arm 5410 is designed to be rotatable, and the first gear arm 5410 needs to be connected to the first panel 3000, the second gear arm 5420 is designed to be rotatable, and the second gear arm 5420 needs to be connected to the second panel 4000, the first gear 5310 is designed to be rotatable, and the first gear 5310 needs to mesh with the first gear arm 5410, the second gear 5320 is designed to be rotatable, and the second gear 5320 is designed to be rotatable, and the second gear 5320 is designed to be rotatable. 0 needs to be meshed with the second gear arm 5420, the first connecting rod 5210 needs to be rotatably connected to the first gear 5310, and the first connecting rod 5210 is configured to drive the first gear 5310 to rotate, the second connecting rod 5220 needs to be rotatably connected to the second gear 5320, and the second connecting rod 5220 is configured to drive the second gear 5320 to rotate, the main shaft connecting rod 5100 is arranged between the second connecting rod 5220 and the first connecting rod 5210, and the main shaft connecting rod 5100 needs to be rotatably connected to the second connecting rod 5220 and the first connecting rod 5210 respectively, and the driving mechanism 7000 needs to be drivingly connected to the main shaft connecting rod 5100, so that the driving mechanism 7000 can drive the main shaft connecting rod 5100 actively.

[0074] The first gear arm 5410, the second gear arm 5420, the first gear 5310 and the second gear 5320 are respectively configured to be rotatable, that is, the first gear arm 5410, the second gear arm 5420, the first gear 5310 and the second gear 5320 are relatively fixed to a certain position and can rotate. The first gear arm 5410, the first gear 5310 and the first connecting rod 5210 are arranged on one side (left side) of the main shaft connecting rod 5100, and the second gear arm 5420, the second gear 5320 and the second connecting rod 5220 are arranged on the other side (right side) of the main shaft connecting rod 5100. The approximate center position of the main shaft connecting rod 5100 is connected to the driving mechanism 7000, and the two ends of the main shaft connecting rod 5100 are rotatably connected to the first connecting rod 5210 and the second connecting rod 5220.

[0075] When it is necessary to open the exhaust vent 8100, the driving mechanism 7000 moves counterclockwise, causing the main shaft connecting rod 5100 to rotate counterclockwise, and the main shaft connecting rod 5100 and the first connecting rod 5210 rotate relative to each other, thereby driving the first connecting rod 5210 to push the first gear 5310 to rotate counterclockwise. At this time, the first connecting rod 5210 and the first gear 5310 also rotate relative to each other, causing the first gear 5310 to drive the first gear arm 5410 to rotate clockwise, so that the first gear arm 5410 pulls the first panel 3000 to open the exhaust vent 8100; at the same time, when the main shaft connecting rod 5100 rotates counterclockwise, the main shaft connecting rod 5100 and the first connecting rod 5210 rotate relative to each other. The axial connecting rod 5100 and the second connecting rod 5220 rotate relative to each other, thereby driving the second connecting rod 5220 to push the second gear 5320 to rotate clockwise. At this time, the second connecting rod 5220 and the second gear 5320 also rotate relative to each other, and the second gear 5320 drives the second gear arm 5420 to rotate counterclockwise, so that the second gear arm 5420 pulls the second panel 4000 to open the exhaust port 8100. Since the first gear arm 5410 and the second gear arm 5420 rotate in different directions, the first panel 3000 and the second panel 4000 open the exhaust port 8100 together in opposite directions.

[0076] When the exhaust port 8100 needs to be closed, the driving mechanism 7000 moves clockwise, causing the main shaft connecting rod 5100 to rotate clockwise, and the main shaft connecting rod 5100 and the first connecting rod 5210 rotate relative to each other, thereby driving the first connecting rod 5210 to pull the first gear 5310 to rotate clockwise. At this time, the first connecting rod 5210 and the first gear 5310 also rotate relative to each other, causing the first gear 5310 to drive the first gear arm 5410 to rotate counterclockwise, so that the first gear arm 5410 pulls the first panel 3000 to close the exhaust port 8100; at the same time, when the main shaft connecting rod 5100 rotates clockwise, the main shaft connecting rod 5100 rotates clockwise. The connecting rod 5100 and the second connecting rod 5220 rotate relative to each other, thereby driving the second connecting rod 5220 to push and pull the second gear 5320 to rotate counterclockwise. At this time, the second connecting rod 5220 and the second gear 5320 also rotate relative to each other, and the second gear 5320 drives the second gear arm 5420 to rotate clockwise, so that the second gear arm 5420 pulls the second panel 4000 to close the exhaust port 8100. Since the first gear arm 5410 and the second gear arm 5420 rotate in different directions, the first panel 3000 and the second panel 4000 jointly close the exhaust port 8100 in opposite directions.

[0077] Combination Figure 6 , Figure 7 , Figure 8 and Fig. 9As shown, in some embodiments of the present application, the opening and closing device includes a synchronous bracket 6200 and a driven mechanism 6100, one end of the second panel 4000 and the first panel 3000 needs to be connected to the connecting rod mechanism 5000, and the other end of the second panel 4000 and the first panel 3000 needs to be connected to the driven mechanism 6100, and the synchronous bracket 6200 is arranged between the connecting rod mechanism 5000 and the driven mechanism 6100, and is respectively connected to the connecting rod mechanism 5000 and the driven mechanism 6100. In this way, through the setting of the synchronous bracket 6200, the movement of the second panel 4000 and the first panel 3000 is smoother.

[0078] Specifically, the connecting rod mechanism 5000 is connected to one end of the second panel 4000 and one end of the first panel 3000, the driven mechanism 6100 is connected to the other end of the second panel 4000 and the other end of the second panel 4000, the connecting rod mechanism 5000 is connected to the front end of the second panel 4000 and the front end of the first panel 3000, and the driven mechanism 6100 and the rear end of the second panel 4000 are connected to the rear end of the first panel 3000. In this way, the influence of the connecting rod mechanism 5000 and the driven mechanism 6100 on the airflow can be minimized. Although the second panel 4000 and the first panel 3000 can be driven only by the setting of the connecting rod mechanism 5000, the air outlet 8100 has a certain area. In order to close the air outlet 8100, the sizes of the second panel 4000 and the first panel 3000 should also be set accordingly, for example, along the front and rear directions, the second panel 4000 and the first panel 3000 have a certain length. In this case, if the front end of the first panel 3000 and the front end of the second panel 4000 are connected only by the connecting rod mechanism 5000, when the driving mechanism 7000 drives the connecting rod mechanism 5000, although the second panel 4000 and the first panel 3000 can also move, just because the second panel 4000 and the first panel 3000 have a certain length, the second panel 4000 and the first panel 3000 will not move smoothly. For example, the connecting rod mechanism 5000 and the second panel 4000 are connected to the front end of the first panel 3000, and when the driving mechanism 7000 is in motion, the rear ends of the second panel 4000 and the first panel 3000 cannot be effectively driven to move. Therefore, in this embodiment, by providing a driven mechanism 6100 and a synchronous bracket 6200, the synchronous bracket 6200 connects the driven mechanism 6100 and the connecting rod mechanism 5000, and the opposite ends of the first panel 3000 are respectively connected to the connecting rod mechanism 5000 and the driven mechanism 6100, and the opposite ends of the second panel 4000 are also respectively connected to the connecting rod mechanism 5000 and the driven mechanism 6100. In this way, the driving mechanism 7000 can drive the synchronous bracket 6200 and the driven mechanism 6100 to move only by driving the connecting rod mechanism 5000, so that the movement of the second panel 4000 and the first panel 3000 is more stable and the movement consistency is also better. It is also through the setting of the synchronous bracket 6200 and the driven mechanism 6100 that the number of driving mechanisms 7000 can be set to only one, and the smooth movement of the second panel 4000 and the first panel 3000 can be effectively achieved, thereby eliminating the need for complex control logic, further reducing costs and improving efficiency.

[0079] The specific structure of the driven mechanism 6100 is as follows: Figure 5 , Figure 6 , Figure 7 , Fig. 9 and Fig.10 As shown, in some embodiments of the present application, the driven mechanism 6100 includes a second driven arm 6120 and a first driven arm 6110, and the synchronous bracket 6200 includes a second synchronous bracket 6220 and a first synchronous bracket 6210; the second gear arm 5420 and the second driven arm 6120 are alternately arranged, the second driven arm 6120 is connected to the second panel 4000, and the second driven arm 6120 is configured to be rotatable, the first gear arm 5410 and the first driven arm 6110 are alternately arranged, and the first driven arm 6110 is alternately arranged. 0 is connected to the first panel 3000, and the first driven arm 6110 is configured to be rotatable; the second synchronization bracket 6220 is arranged between the second gear arm 5420 and the second driven arm 6120, and the second synchronization bracket 6220 is respectively connected to the second gear arm 5420 and the second driven arm 6120, and the first synchronization bracket 6210 is arranged between the first gear arm 5410 and the first driven arm 6110, and the first synchronization bracket 6210 is respectively connected to the first gear arm 5410 and the first driven arm 6110.

[0080] Specifically, the connecting rod mechanism 5000 is located on the front side of the air exhaust port 8100, and the driven mechanism 6100 is located on the rear side of the air exhaust port 8100, that is, the main shaft connecting rod 5100, the first connecting rod 5210, the second connecting rod 5220, the first gear 5310, the second gear 5320, the first gear arm 5410 and the second gear arm 5420 are arranged on the front side of the air exhaust port 8100, the second driven arm 6120 and the first driven arm 6110 are arranged on the rear side of the air exhaust port 8100, the first synchronous bracket 6210 is arranged on the left side of the air exhaust port 8100, and the second synchronous bracket 6220 is arranged on the right side of the air exhaust port 8100. Similar to the rotatable arrangement of the first gear 5310, the second gear 5320, the first gear arm 5410 and the second gear arm 5420, the rotatable arrangement of the second driven arm 6120 and the first driven arm 6110 means that the second driven arm 6120 and the first driven arm 6110 are arranged at a certain position and are rotatable. When the first gear arm 5410 rotates, the first driven arm 6110 can be driven to rotate synchronously through the first synchronization bracket 6210, and when the second gear arm 5420 rotates, the second driven arm 6120 can be driven to rotate synchronously through the second synchronization bracket 6220, so that the rotation of the first panel 3000 and the second panel 4000 is more stable.

[0081] Combination Figure 4 , Figure 5 , Figure 6 , Figure 7 and Fig.10As shown, in some embodiments of the present application, the connecting rod mechanism 5000 is arranged on the first base 1000, the driven mechanism 6100 is arranged on the second base 2000, and the driving mechanism 7000 is fixed on the first base 1000. In this way, the connecting rod mechanism 5000, the driven mechanism 6100 and the driving mechanism 7000 have a corresponding installation base, which makes it easier for the driving mechanism 7000 to cooperate with the connecting rod mechanism 5000 and the driven mechanism 6100, which is more conducive to the modular setting of the opening and closing device.

[0082] Specifically, the second gear arm 5420 and the first gear arm 5410 are rotatably connected to the first base 1000, and the second driven arm 6120 and the first driven arm 6110 are rotatably connected to the second base 2000, for example, by means of shaft connection to achieve rotation, so that the link mechanism 5000 and the driven mechanism 6100 are respectively arranged on the first base 1000 and the second base 2000. It can be understood that when the second gear arm 5420 and the first gear arm 5410 are rotatably connected to the first base 1000, since the second connecting rod 5220, the main shaft connecting rod 5100 and the first connecting rod 5210 are arranged between the second gear arm 5420 and the first gear arm 5410, the positions of the second connecting rod 5220, the main shaft connecting rod 5100 and the first connecting rod 5210 are also constrained. The spindle connecting rod 5100 can be rotatably connected to the first base 1000 or can be separated from the first base 1000, as long as the driving connection with the driving mechanism 7000 is ensured. For example, the spindle connecting rod 5100 has a hole, and the rotating shaft 7100 of the driving mechanism 7000 can be directly inserted into the hole to achieve the driving connection with the spindle connecting rod 5100.

[0083] Furthermore, in some embodiments of the present application, the second gear arm 5420 is rotatably connected to the first panel 3000, the first gear arm 5410 is rotatably connected to the first panel 3000, the second follower arm 6120 is rotatably connected to the second panel 4000, and the first follower arm 6110 is rotatably connected to the second panel 4000. In this way, while ensuring that the second panel 4000 and the first panel 3000 open and close the exhaust port 8100, the range of movement of the second panel 4000 and the first panel 3000 is appropriately narrowed, which is beneficial to reducing the space occupied by the opening and closing device.

[0084] Specifically, the first panel 3000 is moved by the rotation of the first driven arm 6110 and the first gear arm 5410, and the second panel 4000 is also moved by the rotation of the second driven arm 6120 and the second gear arm 5420. Taking the first panel 3000 as an example, when the first gear arm 5410 and the first driven arm 6110 rotate, if the first gear arm 5410, the first driven arm 6110 and the first panel 3000 are non-rotatably connected, then the first panel 3000 will move along the rotation trajectory of the first gear arm 5410 and the first driven arm 6110, so more space needs to be reserved for the first panel 3000 to rotate. In the present embodiment, the first panel 3000 is designed to be rotatably connected to the first gear arm 5410 and the first follower arm 6110. That is to say, when the first gear arm 5410 and the first follower arm 6110 rotate, since the first panel 3000 needs to be movably connected to the first base 1000 and the second base 2000 respectively, under the premise of being constrained by the first base 1000 and the second base 2000, the first panel 3000 may not completely follow the rotation trajectory of the first gear arm 5410 and the first follower arm 6110. Instead, when the first gear arm 5410 and the first follower arm 6110 drive the first panel 3000 to move, the first panel 3000 will rotate relative to the first gear arm 5410 and the first follower arm 6110. This avoids the first panel 3000 from completely following the rotation trajectory of the first gear arm 5410 and the first follower arm 6110, thereby reducing the space occupied. The same is true for the second panel 4000, which will not be repeated here.

[0085] Combination Figures 6 to 8 As shown, in some embodiments of the present application, the first follower arm 6110 has the same structure as the second gear arm 5420, and the second follower arm 6120 has the same structure as the first gear arm 5410, thereby enhancing the commonality between the components and reducing the number of material types.

[0086] Specifically, taking the first driven arm 6110 and the second gear arm 5420 having the same structure as each other as an example, the first driven arm 6110 and the second gear arm 5420 can be interchangeable, for example, the first driven arm 6110 and the second gear arm 5420 are two completely identical components. In this way, the first driven arm 6110 and the second gear arm 5420 constitute one component, and the second driven arm 6120 and the first gear arm 5410 constitute another component, so that only two components (each component contains two) need to be prepared in the same opening and closing device.

[0087] The first gear arm 5410 is disposed at the left end of the first base 1000, the second gear arm 5420 is disposed at the right end of the first base 1000, the first driven arm 6110 is disposed at the left end of the second base 2000, and the second driven arm 6120 is disposed at the right end of the second base 2000. The first gear arm 5410 and the second driven arm 6120 have the same structure, so the first gear arm 5410 and the second driven arm 6120 can be used interchangeably, that is, the second driven arm 6120 is disposed at the left end of the first base 1000, and the first gear arm 5410 is disposed at the right end of the second base 2000, and the same is true for the second gear arm 5420 and the second driven arm 6120. Therefore, the first gear arm 5410 and the second driven arm 6120 can be designed as two identical components, and the second gear arm 5420 and the first driven arm 6110 can be designed as two identical components, respectively, so as to enhance versatility.

[0088] Combination Figure 5 As shown, in some embodiments of the present application, the first base 1000 includes a first outer base body 1100 and a first inner base body 1200, and the first outer base body 1100 and the first inner base body 1200 are connected to each other so as to clamp the connecting rod mechanism 5000. Through such an arrangement, the first base 1000 has a higher structural strength, and at the same time facilitates the installation of the connecting rod mechanism 5000, and can provide protection for the connecting rod mechanism 5000.

[0089] Specifically, the first inner seat body 1200 may be provided with a corresponding shaft, and the corresponding parts of the connecting rod mechanism 5000 that need to be rotatably arranged are installed on the corresponding shaft, and then the first outer seat body 1100 is installed, and the first outer seat body 1100 is combined with the first inner seat body 1200, so that the installation of the connecting rod mechanism 5000 is realized, and the connecting rod mechanism 5000 is prevented from escaping from the first inner seat body 1200. Since the connecting rod mechanism 5000 is a movable part, when the first outer seat body 1100 and the first inner seat body 1200 jointly clamp the connecting rod mechanism 5000, protection of the connecting rod mechanism 5000 can be formed, thereby preventing foreign objects from getting stuck and causing activity obstruction.

[0090] The same is true for the second base 2000. The second base 2000 includes a second outer base body 2100. Due to the second inner base body 2200, the second outer base body 2100 and the second inner base body 2200 are interconnected to clamp the driven mechanism 6100. This component strengthens the structural strength of the second base 2000 and also protects the driven mechanism 6100.

[0091] Combination Figures 6 to 10As shown, in some of the embodiments, the active cooperation of the first panel 3000 and the second base 2000 with the first base 1000, and the active cooperation of the second panel 4000 and the second base 2000 with the first base 1000 are realized by the following scheme. The second base 2000 and the first base 1000 are respectively provided with a first guide groove 1210 / 2210, and the second base 2000 and the first base 1000 are also respectively provided with a second guide groove 1220 / 2220. In the first base 1000, the first guide groove 1210 and the second guide groove 1220 are arranged along the left-right direction, and in the second base 2000, the first guide groove 2210 and the second guide groove 2220 are also arranged along the left-right direction.

[0092] The first panel 3000 is provided with a first sliding protrusion 3200, and the second panel 4000 is provided with a second sliding protrusion 4200. For example, the first two opposite ends (front and rear ends) of the first panel 3000 are respectively provided with the first sliding protrusion 3200, and the second two opposite ends (front and rear ends) of the second panel 4000 are respectively provided with the second sliding protrusion 4200. The first sliding protrusion 3200 on the first panel 3000 is respectively inserted into the first guide groove 1210 of the first base 1000 and the first guide groove 2210 of the second base 2000, and the first sliding protrusion 3200 can move along the first guide groove 1210 / 2210, thereby driving the first panel 3000 to move. The second sliding protrusion 4200 on the second panel 4000 is respectively inserted into the second guide groove 1220 of the first base 1000 and the second guide groove 2220 of the second base 2000, and the second sliding protrusion 4200 can move along the second guide groove 1220 / 2220, thereby driving the second panel 4000 to move. That is, when the driving mechanism 7000 is in motion, the driving mechanism 7000 can drive the first panel 3000 and the second panel 4000 to move, the first sliding protrusion 3200 and the first guide groove 1210 / 2210 form a mutual constraint, the second sliding protrusion 4200 and the second guide groove 1220 / 2220 form a mutual constraint, so that the first sliding protrusion 3200 can only move along the first guide groove 1210 / 2210, and the second sliding protrusion 4200 can only move along the second guide groove 1220 / 2220, thereby driving the first panel 3000 and the second panel 4000 to open and close the exhaust port 8100.

[0093] It is understandable that the first sliding protrusion 3200 and the second sliding protrusion 4200 can be directly or indirectly arranged. For example, the first bracket 3100 is respectively arranged at the opposite ends (front and rear ends) of the first panel 3000, and the first sliding protrusion 3200 is arranged on the first bracket 3100. At the same time, the first bracket 3100 at one end is connected to the first gear arm 5410, and the first bracket 3100 at the other end is connected to the first driven arm 6110. The first gear arm 5410 and the first driven arm 6110 drive the first bracket 3100 to move, and the first panel 3000 is driven to move through the cooperation between the first sliding protrusion 3200 and the first guide groove 1210 / 2210. Similarly, the second brackets 4100 are respectively provided at the opposite ends (front and rear ends) of the second panel 4000, and the second brackets 4100 are provided with second sliding protrusions 4200. At the same time, the second bracket 4100 at one end is connected to the second gear arm 5420, and the second bracket 4100 at the other end is connected to the second driven arm 6120. The second gear arm 5420 and the second driven arm 6120 drive the second bracket 4100 to move, and the second sliding protrusion 4200 cooperates with the second guide groove 1220 / 2220, thereby driving the second panel 4000 to move.

[0094] Combination Fig. 9 and Fig.10 As shown, in some embodiments of the present application, the first guide groove 1210 and the second guide groove 1220 of the first base 1000 are designed to be arranged in an eight-shaped shape, and the first guide groove 2210 and the second guide groove 2220 of the second base 2000 are also designed to be arranged in an eight-shaped shape. The figure eight arrangement makes the first guide groove 1210 / 2210 and the second guide groove 1220 / 2220 inclined from top to bottom. When the first slide protrusion 3200 moves from top to bottom in the first guide groove 1210 / 2210, it can drive the first panel 3000 to open the exhaust port 8100. When the first slide protrusion 3200 moves from bottom to top in the first guide groove 1210 / 2210, it can drive the first panel 3000 to close the exhaust port 8100. The same is true for the cooperation between the second slide protrusion 4200 and the second guide groove 1220 / 2220. Through the figure eight arrangement, the first panel 3000 and the second panel 4000 will not interfere with the surface panel 8000 when they move. For example, taking the first panel 3000 as an example, when the air outlet 8100 needs to be opened, the first gear arm 5410 and the first follower arm 6110 drive the first panel 3000 to rotate to a certain extent, and then pull the first panel 3000 to move tiltedly from top to bottom along the first guide groove 1210 / 2210, thereby opening the air outlet 8100.

[0095] The present application also discloses a combined electrical appliance, Figure 1 and Figure 2As shown, the combined electrical appliance includes an exhaust module and the opening and closing device mentioned in the above embodiment, and the exhaust module is used to exhaust oil smoke. The so-called combined electrical appliance combines two household appliances that are to be driven together, wherein the exhaust module constitutes a traditional range hood, and the combined electrical appliance may also include at least one of an oven, a steamer, a gas cooker, an electromagnetic cooker, etc. It can be understood that the combined electrical appliance includes the opening and closing device of the above embodiment, and the opening and closing device of this embodiment adopts the technical solution of the above embodiment, so it at least has the beneficial effects brought by the technical solution of the above embodiment, which will not be repeated here.

[0096] The combined electrical appliance includes a surface plate 8000. For example, the combined electrical appliance is a combined stove. An exhaust port 8100 is arranged approximately in the middle of the surface plate 8000. The surface plate 8000 is located on the left and right sides of the exhaust port 8100 to form an electromagnetic heating area. The exhaust module is arranged below the surface plate 8000, and the opening and closing device is also arranged below the surface plate 8000. When cooking on the left and right sides of the exhaust port 8100 generates oil smoke, the opening and closing device opens the exhaust port 8100, starts the exhaust module, and realizes the exhaust of oil smoke. The oil smoke is exhausted from top to bottom through the exhaust port 8100. When the combined electrical appliance is not needed, the opening and closing device closes the exhaust port 8100. The first panel 3000 and the second panel 4000 of the opening and closing device face each other downward and move toward the opposite sides (left and right sides) of the exhaust port 8100, so that the exhaust port 8100 is opened without interfering with the surface plate 8000.

[0097] The above description is only a preferred embodiment of the present application, and does not limit the patent scope of the present application. All equivalent structural changes made based on the concept of the present application and the contents of the present application description and drawings, or direct / indirect application in other related technical fields are included in the patent protection scope of the present application.

Claims

1. An opening and closing device, characterized in that: include: First Pedestal; A second base is arranged alternately with the first base; A first panel is disposed between the first base and the second base and is movably connected to the first base and the second base respectively; A second panel is disposed between the first base and the second base and is movably connected to the first base and the second base respectively; as well as The driving mechanism is connected to the first panel and the second panel respectively, and the driving mechanism is suitable for driving the first panel and the second panel to move so as to open and close the air outlet.

2. The opening and closing device according to claim 1, characterized in that: The driving mechanism is suitable for moving along a first direction to drive the first panel and the second panel to open the air outlet, and is suitable for moving along a second direction to drive the first panel and the second panel to close the air outlet; the first direction and the second direction are opposite.

3. The opening and closing device according to claim 2, characterized in that: The driving mechanism has a rotating shaft suitable for outputting power, and the rotating shaft is suitable for rotating along the first direction and the second direction.

4. The opening and closing device according to claim 1, characterized in that: The driving mechanism is suitable for driving the first panel and the second panel to move toward each other to close the air outlet, and is suitable for driving the first panel and the second panel to move away from each other to open the air outlet.

5. The opening and closing device according to claim 1, characterized in that: The opening and closing device comprises a connecting rod mechanism, and the driving mechanism is drivingly connected to the connecting rod mechanism so as to drive the first panel and the second panel to move through the connecting rod mechanism.

6. The opening and closing device according to claim 5, characterized in that: The connecting rod mechanism comprises: A first gear arm is configured to be rotatable and connected to the first panel; a second gear arm, configured to be rotatable and connected to the second panel; a first gear, configured to be rotatable and meshing with the first gear arm; a second gear, configured to be rotatable and meshing with the second gear arm; A first connecting rod is rotatably connected to the first gear and can drive the first gear to rotate; a second connecting rod rotatably connected to the second gear and capable of driving the second gear to rotate; and The main shaft connecting rod is arranged between the first connecting rod and the second connecting rod, and is rotatably connected to the first connecting rod and the second connecting rod respectively. The driving mechanism is connected to the main shaft connecting rod to drive the main shaft connecting rod to rotate.

7. The opening and closing device according to claim 5 or 6, characterized in that: The opening and closing device comprises a driven mechanism and a synchronous bracket. One end of the first panel and the second panel is connected to the connecting rod mechanism, and the other end is connected to the driven mechanism. The synchronous bracket connects the connecting rod mechanism and the driven mechanism.

8. The opening and closing device according to claim 7, characterized in that: The driven mechanism comprises a first driven arm and a second driven arm, wherein the first driven arm and the first gear arm are arranged alternately, the first driven arm is configured to be rotatable and connected to the first panel, and the second driven arm and the second gear arm are arranged alternately, the second driven arm is configured to be rotatable and connected to the second panel; The synchronous bracket includes a first synchronous bracket and a second synchronous bracket, the first synchronous bracket is connected to the first gear arm and the first driven arm respectively, and the second synchronous bracket is connected to the second gear arm and the second driven arm respectively.

9. The opening and closing device according to claim 8, characterized in that: The driving mechanism is fixed to the first base, the first gear arm and the second gear arm are rotatably connected to the first base, and the first driven arm and the second driven arm are rotatably connected to the second base.

10. The opening and closing device according to claim 8, characterized in that: The first gear arm and the first driven arm are rotatably connected to the first panel, respectively, and the second gear arm and the second driven arm are rotatably connected to the second panel, respectively.

11. The opening and closing device according to claim 8, characterized in that: The first gear arm and the second driven arm have the same structure, and the second gear arm and the first driven arm have the same structure.

12. The opening and closing device according to claim 7, characterized in that: The first base comprises a first inner base body and a first outer base body, wherein the first inner base body and the first outer base body are connected to each other to clamp the connecting rod mechanism; And / or, the second base includes a second inner base body and a second outer base body, and the second inner base body and the second outer base body are connected to each other to clamp the driven mechanism.

13. The opening and closing device according to claim 1, characterized in that: The first base and the second base are respectively provided with a first guide groove, and the first panel is provided with a first sliding protrusion, and the first sliding protrusion is inserted into the first guide groove to guide the movement of the first panel; The first base and the second base are respectively provided with a second guide groove, and the second panel is provided with a second sliding protrusion, and the second sliding protrusion is inserted into the second guide groove to guide the movement of the second panel.

14. The opening and closing device according to claim 13, characterized in that: The first guide groove and the second guide groove of the first base, and the first guide groove and the second guide groove of the second base are respectively arranged in an eight-shaped shape.

15. The opening and closing device according to claim 1, characterized in that: The number of the driving mechanism is one.

16. A combined electrical appliance, characterized in that: It comprises an exhaust module and an opening and closing device as described in any one of claims 1 to 15.

17. The combined electrical appliance according to claim 16, characterized in that: The combined electrical appliance comprises a surface plate, the surface plate has the air outlet, and the opening and closing device is arranged below the surface plate.

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