Ventilation device and mirror cabinet

Abstract

The utility model discloses a ventilation device and mirror cabinet, ventilation device includes casing, cold and hot module, air inlet baffle, air outlet baffle, pole, carousel and elastic piece, and the casing forms the air duct, and the air duct has the hot air import and cold air import of upper and lower arrangement one end, and the other end has the first air outlet and second air outlet of left and right arrangement, and air inlet baffle can turn over and make hot air import or cold air import open, and air outlet baffle can turn over and make first air outlet or second air outlet open, and pole is equipped with the resistance and touch portion, and the carousel is equipped with concave-convex structure, and carousel rotation can drive air outlet baffle to turn over through second transmission structure, and resistance and touch portion and concave-convex structure activity resistance and touch make pole swing up and down, and pole drives air inlet baffle to turn over through first transmission structure. The utility model discloses use one carousel to drive air inlet baffle and air outlet baffle simultaneously, only need to drive carousel this component, can control cold and hot air and left and right air outlet switching, action mechanism is few, and the structure is compact, and control is simple.

Description

Technical Field

[0001] This utility model relates to the field of ventilation system technology, and in particular to a ventilation device and a mirror cabinet. Background Technology

[0002] The existing mirror cabinet cooling system only provides a single type of cold air and has only a single air outlet. The air must be blown on the face and the mirror simultaneously, and it is impossible to separate the face blowing and defogging. They can only be turned on at the same time, and the single type of cold air results in a poor user experience in winter, as it cannot achieve a warm air effect. Utility Model Content

[0003] The present invention aims to at least partially solve one of the aforementioned technical problems in the related art. To this end, the present invention proposes a ventilation device.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] This utility model also proposes a mirror cabinet with the above-mentioned ventilation device.

[0006] A ventilation device according to a first aspect of the present invention includes:

[0007] The housing has a main air inlet, a flow cavity, and an air duct. The flow cavity is located between the main air inlet and the air duct. One end of the air duct has a hot air inlet and a cold air inlet arranged vertically, and the other end has a first air outlet and a second air outlet arranged horizontally.

[0008] A heating and cooling module is installed in the flow cavity, with the cold end of the heating and cooling module corresponding to the cold air inlet and the hot end of the heating and cooling module corresponding to the hot air inlet.

[0009] An air inlet baffle is disposed in the air duct. The air inlet baffle can be flipped up and down. When the air inlet baffle is flipped to the first position, the hot air inlet can be closed and the cold air inlet can be opened at the same time. When the air inlet baffle is flipped to the second position, the cold air inlet can be closed and the hot air inlet can be opened at the same time.

[0010] An air outlet baffle is disposed in the air duct. The air outlet baffle can be flipped left and right. When the air outlet baffle is flipped to the third position, the first air outlet can be closed and the second air outlet can be opened at the same time. When the air outlet baffle is flipped to the fourth position, the second air outlet can be closed and the first air outlet can be opened at the same time.

[0011] A lever is rotatably mounted on the housing. One end of the lever is provided with an abutment. The lever is connected to the air inlet baffle through a first transmission structure. The lever can swing up and down to drive the air inlet baffle to flip.

[0012] A turntable is rotatably mounted on the housing. The turntable has a concave-convex structure. The turntable is connected to the air outlet baffle through a second transmission structure. The rotation of the turntable can drive the air outlet baffle to flip. At the same time, the contact part moves against the concave-convex structure to make the lever swing up and down.

[0013] An elastic element provides a spring force to the lever, causing the abutment to abut against the concave-convex structure.

[0014] The ventilation device according to the embodiment of this utility model has at least the following beneficial effects:

[0015] This invention uses an inlet baffle that swings up and down to open and close the cold and hot air inlets, and an outlet baffle that swings left and right to open and close the left and right air outlets. A turntable simultaneously drives both the inlet and outlet baffles. When the turntable rotates, a second transmission structure causes the outlet baffle to flip, and simultaneously, the concave and convex structures on the turntable come into contact with the contact part of a lever, causing the lever to swing up and down. At this time, the lever, through the first transmission structure, causes the inlet baffle to flip. Thus, only the turntable needs to be driven to control the switching between cold and hot air and the left and right air outlets. The design has few moving parts, a compact structure, and simple control. The first and second air outlets can independently provide airflow for different functions (such as defogging and facial ventilation).

[0016] According to some embodiments of the present invention, the first transmission structure includes a limiting groove provided at the other end of the lever and a first eccentric column provided on the air inlet baffle. The first eccentric column is eccentric to the rotation axis of the air inlet baffle. The limiting groove is inclined and the first eccentric column can move within the limiting groove.

[0017] According to the ventilation device of the claim, the second transmission structure includes a second eccentric column disposed on the air outlet baffle and a guide groove disposed on the turntable. The second eccentric column is eccentric to the rotation axis of the air outlet baffle. The second eccentric column can move along the guide groove. The rotation of the turntable can push the second eccentric column through the guide groove to cause the air outlet baffle to flip.

[0018] According to some embodiments of the present invention, the concave-convex structure includes a relief groove, a contact plane, and a ramp connecting the relief groove and the contact plane. The contact part is a convex rib structure. In the initial state, the elastic member drives the contact part to extend into the relief groove. The rotation of the turntable can cause the contact part to climb up the ramp to the contact plane and move to contact the contact plane.

[0019] According to some embodiments of this utility model, the guide groove is composed of an arc-shaped segment and symmetrical first and second curved segments. The center of the arc-shaped segment coincides with the rotation center of the turntable. The arc-shaped segment connects the first and second curved segments, making the guide groove U-shaped overall. In the initial state, the second eccentric column is located at the beginning of the first curved segment, and the abutting part is located at the end of the avoidance groove away from the slope. At this time, the air outlet baffle is in the third position. The rotation of the turntable causes the second eccentric column to pass through the first curved segment and the arc-shaped segment in sequence. When the turntable rotates to the second eccentric column at the junction of the first curved section and the arc section, the air outlet baffle flips to the fourth position, and the contact part reaches the end of the clearance groove near the slope. When the turntable rotates to the second eccentric column at the junction of the second curved section and the arc section, the contact part reaches the contact plane. When the turntable rotates to the end of the second eccentric column at the end of the second curved section, the air outlet baffle flips to the third position, and the contact part is on the contact plane.

[0020] According to some embodiments of the present invention, it further includes a drive gear and a motor. The turntable is rotatably connected to the housing. The outer periphery of the turntable is provided with meshing teeth. The drive gear meshes with the meshing teeth. The motor is connected to the drive gear.

[0021] According to some embodiments of this utility model, the air inlet baffle includes a first baffle body and two first dial wheels. The two first dial wheels are respectively fixedly connected to the left and right sides of the first baffle body. A first eccentric column is disposed on the first dial wheel. The two first dial wheels are respectively rotatably engaged with the left and right walls of the air duct, and the first eccentric column is located outside the air duct. The lever consists of a connecting rod and two swing arms. The connecting rod is connected between the two swing arms, making the lever as a whole U-shaped. The abutting part is disposed on the connecting rod. The limiting groove is disposed on the swing arm. The two swing arms are respectively rotatably connected to the left and right walls of the air duct, and the rotation center of the swing arm is located between the abutting part and the limiting groove.

[0022] According to some embodiments of the present invention, the elastic element is a torsion spring, the torsion spring is installed on the left or right wall of the air duct, the first torsion arm of the torsion spring is connected to the left or right wall of the air duct, and the second torsion arm of the torsion spring is connected to the swing arm.

[0023] According to some embodiments of the present invention, the air outlet baffle includes a second baffle body and a second dial wheel. The second dial wheel is fixedly connected to the upper end of the second baffle body. The second eccentric column is disposed on the second dial wheel. The second dial wheel is rotatably engaged with the upper wall of the air duct, and the second eccentric column is located outside the air duct. The lower end of the second baffle body is provided with a rotating shaft column. The rotating shaft column is coaxial with the rotation axis of the second dial wheel, and the rotating shaft column is rotatably engaged with the lower wall of the air duct.

[0024] According to some embodiments of the present invention, the housing includes an outer shell and an inner shell. The outer shell forms an installation cavity, the main air inlet, and the flow cavity. The inner shell is independent of the outer shell and forms the air duct. The inner shell is embedded in the installation cavity.

[0025] According to some embodiments of the present invention, the hot and cold module includes a semiconductor refrigeration chip, a cold end fin, and a hot end fin. The cold end fin is disposed on the cold end face of the semiconductor refrigeration chip, and the hot end fin is disposed on the hot end face of the semiconductor refrigeration chip. The cold end fin faces the cold air inlet, and the hot end fin faces the hot air inlet.

[0026] The mirror cabinet according to a second aspect of the present invention includes the ventilation device.

[0027] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0028] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0029] Figure 1 This is a schematic diagram of the overall structure of the ventilation device of this utility model;

[0030] Figure 2 This is an exploded view of the ventilation device of this utility model;

[0031] Figure 3 This is an assembly drawing of the switching module of this utility model;

[0032] Figure 4 This is an exploded view of the switching module of this utility model;

[0033] Figure 5 This is a schematic diagram of the cold air inlet of this utility model in the open state;

[0034] Figure 6 This is a diagram showing the second air outlet opening when the lever is pressed down;

[0035] Figure 7 This is a diagram showing the state where the first and second air outlets open simultaneously when the lever is pressed down.

[0036] Figure 8 This is a diagram showing the first air outlet opening when the lever is pressed down.

[0037] Figure 9 This is a diagram showing the first air outlet opening when the lever is raised.

[0038] Figure 10 This is a diagram showing the state where the first and second air outlets open simultaneously when the lever is lifted.

[0039] Figure 11 This is a diagram showing the second air outlet open when the lever is raised.

[0040] Figure 12 This is a schematic diagram of the installation of the drive gear and switching module of this utility model.

[0041] Reference numerals: Outer shell 100, main air inlet 110, flow cavity 120, inner shell 200, air duct 210, hot air inlet 211, cold air inlet 212, first air outlet 213, second air outlet 214, heating / cooling module 300, air inlet baffle 400, first baffle body 410, first dial 420, first eccentric column 421, air outlet baffle 500, second baffle body 510, second dial 5 20. Second eccentric column 521, lever 600, connecting rod 610, contact part 611, swing arm 620, limiting groove 621, turntable 700, guide groove 710, arc segment 711, first bending segment 712, second bending segment 713, clearance groove 720, contact plane 730, ramp 740, meshing tooth 750, elastic element 800, fan 900, drive gear 1000, motor 1100. Detailed Implementation

[0042] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0043] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0044] Reference Figure 1-5 A ventilation device, comprising:

[0045] The housing has a main air inlet 110, a flow chamber 120, and an air duct 210. A fan 900 is installed in the main air inlet 110. The flow chamber 120 is located between the main air inlet 110 and the air duct 210. One end of the air duct 210 has a hot air inlet 211 and a cold air inlet 212 arranged vertically, and the other end has a first air outlet 213 and a second air outlet 214 arranged horizontally. Specifically, the hot air inlet 211 is located above the cold air inlet 212.

[0046] The hot and cold module 300 is installed in the flow cavity 120. The cold end of the hot and cold module 300 corresponds to the cold air inlet 212, and the hot end of the hot and cold module 300 corresponds to the hot air inlet 211.

[0047] An air inlet baffle 400 is installed inside the air duct 210. The air inlet baffle 400 can be flipped up and down. When the air inlet baffle 400 is flipped to the first position, the hot air inlet 211 can be closed and the cold air inlet 212 can be opened at the same time. When the air inlet baffle 400 is flipped to the second position, the cold air inlet 212 can be closed and the hot air inlet 211 can be opened at the same time.

[0048] An air outlet baffle 500 is installed inside the air duct 210. The air outlet baffle 500 can be rotated left and right. When the air outlet baffle 500 is rotated to the third position, the first air outlet 213 can be closed and the second air outlet 214 can be opened at the same time. When the air outlet baffle 500 is rotated to the fourth position, the second air outlet 214 can be closed and the first air outlet 213 can be opened at the same time.

[0049] A lever 600 is rotatably mounted on the housing. The front end of the lever 600 is provided with an abutment part 611. The lever 600 is connected to the air inlet baffle 400 through a first transmission structure. The lever 600 can swing up and down to drive the air inlet baffle 400 to flip.

[0050] The turntable 700 is rotatably mounted on the housing. The turntable 700 has a concave-convex structure. The turntable 700 is connected to the air outlet baffle 500 through the second transmission structure. The rotation of the turntable 700 can drive the air outlet baffle 500 to flip. At the same time, the contact part 611 is in contact with the concave-convex structure to make the lever 600 swing up and down.

[0051] The elastic element 800 provides the lever 600 with the elastic force that drives the contact part 611 to abut against the concave-convex structure.

[0052] In some embodiments of this utility model, the first transmission structure includes a limiting groove 621 located at the other end of the lever 600 and a first eccentric column 421 located on the air inlet baffle 400. The first eccentric column 421 is eccentric to the rotation axis of the air inlet baffle 400, and the limiting groove 621 is inclined, allowing the first eccentric column 421 to move within the limiting groove 621. When the turntable 700 rotates, its concave-convex structure actively contacts the contact portion 611 at the front end of the lever 600, causing the lever 600 to swing up and down. At this time, the limiting groove 621 located at the rear end of the lever 600 pushes the first eccentric column 421 as the lever 600 swings, thereby causing the air inlet baffle 400 to flip. It is understood that, in addition to the transmission connection structure of the limiting groove 621 and the first eccentric column 421, other transmission connection methods can also be used between the air inlet baffle 400 and the lever 600. For example, a shaped groove can be provided at the end of the air inlet baffle 400, and a limiting post can be provided at the rear end of the lever 600. The air inlet baffle 400 can be flipped by the cooperation of the limiting post and the shaped groove. Alternatively, a connecting rod can be used to connect the front end of the lever 600 and the first eccentric post to form a crank-rocker mechanism, which can also achieve the flipping of the air inlet baffle 400. Therefore, the first transmission structure of this utility model is not limited to the combination of the first eccentric post 421 and the limiting groove 621, but can also be other transmission forms.

[0053] In some embodiments of this utility model, the second transmission structure includes a second eccentric column 521 disposed on the air outlet baffle 500 and a guide groove 710 disposed on the turntable 700. The second eccentric column 521 is eccentric to the rotation axis of the air outlet baffle 500 and can move along the guide groove 710. When the turntable 700 rotates, the guide groove 710 pushes the second eccentric column 521, causing the air outlet baffle 500 to flip. When the turntable 700 rotates, the special curve design of the guide groove 710 pushes the second eccentric column 521, thereby causing the air outlet baffle 500 to flip.

[0054] In some embodiments of this utility model, the concave-convex structure includes a relief groove 720, a contact plane 730, and a ramp 740 connecting the relief groove 720 and the contact plane 730. The contact part 611 has a convex rib structure. In the initial state, the elastic member 800 drives the contact part 611 to extend into the relief groove 720. The rotation of the turntable 700 allows the contact part 611 to climb up the ramp 740 to the contact plane 730 and move to contact the contact plane 730. In the initial state, the air inlet baffle 400 is in the second position. As the turntable 700 rotates, the contact part 611 climbs from the relief groove 720 up the ramp 740 to the contact plane 730. During this process, the front end of the lever 600 is lifted, the air inlet baffle 400 flips up to the first position, the hot air inlet 211 is closed, and the cold air inlet 212 is opened.

[0055] In some embodiments of this utility model, the guide groove 710 is composed of an arc-shaped segment 711 and symmetrical first curved segments 712 and second curved segments 713. The center of the arc-shaped segment 711 coincides with the rotation center of the turntable 700. The arc-shaped segment 711 connects the first curved segments 712 and the second curved segments 713, making the guide groove 710 U-shaped overall. In the initial state, the second eccentric column 521 is located at the first end of the first curved segment 712, and the contact part 611 is located at the end of the avoidance groove 720 away from the slope 740. At this time, the air outlet baffle 500 is in the third position. The rotation of the turntable 700 causes the second eccentric column 521 to pass through the first curved segment 712 in sequence. In the arc-shaped segment 711 and the second curved segment 713, when the turntable 700 rotates until the second eccentric column 521 reaches the junction of the first curved segment 712 and the arc-shaped segment 711, the air outlet baffle 500 flips to the fourth position, and at the same time, the contact part 611 reaches the end of the clearance groove 720 near the slope 740. When the turntable 700 rotates until the second eccentric column 521 reaches the junction of the second curved segment 713 and the arc-shaped segment 711, the contact part 611 reaches the contact plane 730. When the turntable 700 rotates until the second eccentric column 521 reaches the end of the second curved segment 713, the air outlet baffle 500 flips to the third position, and at the same time, the contact part 611 is on the contact plane 730. Figure 6 As shown, this is the initial state, with the air outlet baffle 500 in the third position, i.e., the first air outlet 213 is closed and the second air outlet 214 is open. As the turntable 700 rotates, the guide groove 710 pushes the second eccentric column 521, causing the air outlet baffle 500 to rotate. When the air outlet baffle 500 reaches... Figure 7 When the position is shown, both the first air outlet 213 and the second air outlet 214 are open; as shown Figure 8 As shown, when the turntable 700 rotates to the junction of the first curved section 712 and the arc section 711 at the second eccentric column 521, the air outlet baffle 500 is in the fourth position, that is, the second air outlet 214 is closed and the first air outlet 213 is open; at the same time Figure 6-8 In the shown state, the front end of the lever 600 is in a depressed state, the contact part 611 is still located in the relief groove 720, and the air inlet baffle 400 is in the second position, that is, the cold air inlet 212 is closed and the hot air inlet 211 is open. Figure 9 As shown, the second eccentric column 521 moves from one end of the arc-shaped section 711 to the other end. During this process, the second eccentric column 521 is not pushed by the guide groove 710. The air outlet baffle 500 remains closed at the second air outlet 214, while the contact part 611 has risen to the contact plane 730. The air inlet baffle 400 is in the first position, i.e., the cold air inlet 212 is open and the hot air inlet 211 is closed. Continuing to rotate the turntable 700, the second eccentric column 521 enters the second curved section 713, causing the air outlet baffle 500 to flip in the opposite direction, as... Figure 10As shown, the air outlet baffle 500 is in the state where the first air outlet 213 and the second air outlet 214 are simultaneously open; as Figure 11 As shown, the second eccentric column 521 reaches the end of the second curved section 713, and the air outlet baffle 500 returns to the third position. Figure 9-11 In the shown configuration, the front end of lever 600 is in the raised position, the air inlet baffle 400 is in the first position, and the cold air inlet 212 is open. With this structure, simply rotating the turntable 700 allows for rapid switching between six ventilation states: left-side cold air, both sides cold air, right-side cold air, left-side hot air, both sides hot air, and right-side hot air. This reduces the number of control programs and drive mechanisms, resulting in a more compact overall structure and enabling multiple airflow state transitions within a confined space. Since this is a ventilation device, the simultaneous closure of both left and right air outlets is ineffective; therefore, this device is not designed with a simultaneous closure state for both air outlets.

[0056] In some embodiments of this utility model, reference is made to Figure 12 It also includes a drive gear 1000 and a motor 1100. The turntable 700 is rotatably connected to the housing. The outer periphery of the turntable 700 is provided with meshing teeth 750. The drive gear 1000 meshes with the meshing teeth 750, and the motor 1100 is connected to the drive gear 1000. By meshing with the meshing teeth 750 on the outer periphery of the turntable 700, the drive gear 1000 efficiently transmits the power of the motor 1100 to the turntable 700, enabling the turntable 700 to obtain the power required for rotation.

[0057] In some embodiments of this utility model, the air inlet baffle 400 includes a first baffle body 410 and two first dial wheels 420. The two first dial wheels 420 are fixedly connected to the left and right sides of the first baffle body 410, respectively. A first eccentric column 421 is disposed on the first dial wheel 420. The two first dial wheels 420 are rotatably engaged with the left and right walls of the air duct 210, respectively. The first eccentric column 421 is located outside the air duct 210. The lever 600 is composed of a connecting rod 610 and two swing arms 620. The connecting rod 610 is connected between the two swing arms 620, making the lever 600 as a whole U-shaped. The contact part 611 is disposed on the connecting rod 610, and the limiting groove 621 is disposed on the swing arm 620. The two swing arms 620 are rotatably connected to the left and right walls of the air duct 210, respectively. The rotation center of the swing arm 620 is located between the contact part 611 and the limiting groove 621. The lever 600 is U-shaped, and the air intake baffle 400 is driven by two swing arms 620 on the left and right sides to ensure the stability of the movement.

[0058] In some embodiments of this utility model, the elastic element 800 is a torsion spring, which is installed on the left or right wall of the air duct 210. The first torsion arm of the torsion spring is connected to the left or right wall of the air duct 210, and the second torsion arm of the torsion spring is connected to the swing arm 620. After the torsion spring is installed, the two torsion arms are in a compressed state, maintaining an opening force, which pushes the rear end of the swing arm 620 upward. Through the lever principle, the front end of the lever 600 remains in a downward state.

[0059] In some embodiments of this utility model, the air outlet baffle 500 includes a second baffle body 510 and a second dial wheel 520. The second dial wheel 520 is fixedly connected to the upper end of the second baffle body 510. A second eccentric column 521 is disposed on the second dial wheel 520. The second dial wheel 520 is rotatably engaged with the upper wall of the air duct 210, and the second eccentric column 521 is located outside the air duct 210. A rotating shaft column is provided at the lower end of the second baffle body 510. The rotating shaft column is coaxial with the rotation axis of the second dial wheel 520, and the rotating shaft column is rotatably engaged with the lower wall of the air duct 210.

[0060] In some embodiments of this utility model, the housing includes an outer shell 100 and an inner shell 200. The outer shell 100 forms a mounting cavity, a main air inlet 110, and a flow passage cavity 120. The inner shell 200 is independent of the outer shell 100 and forms an air duct 210. The inner shell 200 is embedded in the mounting cavity. Figure 12 As shown, during installation, first assemble the inner shell 200, air inlet baffle 400, air outlet baffle 500, elastic element 800, turntable 700 and lever 600 to form a switching module, and then put the component into the mounting cavity and fix it with screws.

[0061] In some embodiments of this utility model, the hot and cold module 300 includes a semiconductor cooling chip, a cold end fin, and a hot end fin. The cold end fin is disposed on the cold end face of the semiconductor cooling chip, and the hot end fin is disposed on the hot end face of the semiconductor cooling chip. The cold end fin faces the cold air inlet 212, and the hot end fin faces the hot air inlet 211.

[0062] A mirror cabinet, including the aforementioned ventilation device.

[0063] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A ventilation device, characterized in that include: The housing has a main air inlet (110), a flow cavity (120) and an air duct (210). The flow cavity (120) is located between the main air inlet (110) and the air duct (210). One end of the air duct (210) has a hot air inlet (211) and a cold air inlet (212) arranged vertically, and the other end has a first air outlet (213) and a second air outlet (214) arranged horizontally. A heating and cooling module (300) is installed in the flow cavity (120). The cold end of the heating and cooling module (300) corresponds to the cold air inlet (212), and the hot end of the heating and cooling module (300) corresponds to the hot air inlet (211). An air inlet baffle (400) is disposed in the air duct (210). The air inlet baffle (400) can be flipped up and down. When the air inlet baffle (400) is flipped to the first position, the hot air inlet (211) can be closed and the cold air inlet (212) can be opened. When the air inlet baffle (400) is flipped to the second position, the cold air inlet (212) can be closed and the hot air inlet (211) can be opened. An air outlet baffle (500) is disposed in the air duct (210). The air outlet baffle (500) can be flipped left and right. When the air outlet baffle (500) is flipped to the third position, the first air outlet (213) can be closed, and the second air outlet (214) can be opened at the same time. When the air outlet baffle (500) is flipped to the fourth position, the second air outlet (214) can be closed, and the first air outlet (213) can be opened at the same time. A lever (600) is rotatably mounted on the housing. One end of the lever (600) is provided with an abutment (611). The lever (600) is connected to the air inlet baffle (400) through a first transmission structure. The lever (600) can swing up and down to drive the air inlet baffle (400) to flip. A turntable (700) is rotatably mounted on the housing. The turntable (700) has a concave-convex structure. The turntable (700) is connected to the air outlet baffle (500) through a second transmission structure. The rotation of the turntable (700) can drive the air outlet baffle (500) to flip. At the same time, the contact part (611) is in contact with the concave-convex structure to make the lever (600) swing up and down. The elastic element (800) provides the lever (600) with a spring force that drives the abutment (611) to abut against the concave-convex structure.

2. The venting device of claim 1, wherein, The first transmission structure includes a limiting groove (621) at the other end of the lever (600) and a first eccentric column (421) on the air inlet baffle (400). The first eccentric column (421) is eccentric to the rotation axis of the air inlet baffle (400). The limiting groove (621) is inclined. The first eccentric column (421) can move within the limiting groove (621).

3. The venting device of claim 1, wherein, The second transmission structure includes a second eccentric column (521) disposed on the air outlet baffle (500) and a guide groove (710) disposed on the turntable (700). The second eccentric column (521) is eccentric to the rotation axis of the air outlet baffle (500). The second eccentric column (521) can move along the guide groove (710). The rotation of the turntable (700) can push the second eccentric column (521) through the guide groove (710) to cause the air outlet baffle (500) to flip.

4. The venting device of claim 3, wherein, The concave-convex structure includes a relief groove (720), a contact surface (730), and a ramp (740) connecting the relief groove (720) and the contact surface (730). The contact part (611) is a rib structure. In the initial state, the elastic member (800) drives the contact part (611) to extend into the relief groove (720). The rotation of the turntable (700) can cause the contact part (611) to climb up along the ramp (740) to the contact surface (730) and move to contact the contact surface (730).

5. The venting device of claim 4, wherein, The guide groove (710) consists of an arc segment (711) and symmetrical first curved segment (712) and second curved segment (713). The center of the arc segment (711) coincides with the rotation center of the turntable (700). The arc segment (711) connects the first curved segment (712) and the second curved segment (713), making the guide groove (710) U-shaped overall. In the initial state, the second eccentric column (521) is located at the first end of the first curved segment (712), and the contact part (611) is located at the end of the avoidance groove (720) away from the slope (740). At this time, the air outlet baffle (500) is in the third position. The rotation of the turntable (700) causes the second eccentric column (521) to pass through the first curved segment (712), the arc segment (711), and the second curved segment (713) in sequence. 713), when the turntable (700) rotates to the point where the second eccentric column (521) reaches the junction of the first curved section (712) and the arc section (711), the air outlet baffle (500) flips to the fourth position, and at the same time the contact part (611) reaches one end of the clearance groove (720) near the ramp (740). When the turntable (700) rotates to the point where the second eccentric column (521) reaches the junction of the second curved section (713) and the arc section (711), the contact part (611) reaches the contact plane (730). When the turntable (700) rotates to the point where the second eccentric column (521) reaches the end of the second curved section (713), the air outlet baffle (500) flips to the third position, and at the same time the contact part (611) is in the contact plane (730).

6. The venting device of claim 1, wherein, It also includes a drive gear (1000) and a motor (1100). The turntable (700) is rotatably connected to the housing. The outer periphery of the turntable (700) is provided with meshing teeth (750). The drive gear (1000) meshes with the meshing teeth (750). The motor (1100) is connected to the drive gear (1000).

7. The venting device of claim 2, wherein, The air inlet baffle (400) includes a first baffle body (410) and two first dials (420). The two first dials (420) are fixedly connected to the left and right sides of the first baffle body (410), respectively. A first eccentric column (421) is disposed on the first dials (420). The two first dials (420) are rotatably engaged with the left and right walls of the air duct (210), respectively. The first eccentric column (421) is located outside the air duct (210). The lever (600) is connected by a connecting rod ( The lever (600) consists of a connecting rod (610) and two swing arms (620). The connecting rod (610) is connected between the two swing arms (620), making the lever (600) U-shaped. The contact part (611) is provided on the connecting rod (610), and the limiting groove (621) is provided on the swing arm (620). The two swing arms (620) are rotatably connected to the left and right walls of the air duct (210) respectively, and the rotation center of the swing arm (620) is located between the contact part (611) and the limiting groove (621).

8. The venting device of claim 7, wherein, The elastic element (800) is a torsion spring, which is installed on the left or right wall of the air duct (210). The first torsion arm of the torsion spring is connected to the left or right wall of the air duct (210), and the second torsion arm of the torsion spring is connected to the swing arm (620).

9. The venting device of claim 3, wherein, The air outlet baffle (500) includes a second baffle body (510) and a second dial wheel (520). The second dial wheel (520) is fixedly connected to the upper end of the second baffle body (510). The second eccentric column (521) is disposed on the second dial wheel (520). The second dial wheel (520) is rotatably engaged with the upper wall of the air duct (210), and the second eccentric column (521) is located outside the air duct (210). The lower end of the second baffle body (510) is provided with a rotating shaft column. The rotating shaft column is coaxial with the rotation axis of the second dial wheel (520), and the rotating shaft column is rotatably engaged with the lower wall of the air duct (210).

10. A cabinet, characterized in that Includes the ventilation device as described in any one of claims 1-9.

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