Dustproof structure and aerosol generating device

Abstract

The utility model belongs to the technical field of aerosol generation, and particularly relates to a dustproof structure and an aerosol generation device. The dustproof structure comprises a dustproof cover and a shell with a containing cavity, a through hole communicated with the containing cavity is formed in the surface of the shell, and the dustproof cover comprises a first elastic arm which is connected to the edge of the through hole and has elastic restoring force and a covering part connected with the first elastic arm; the covering part has a first position state for closing the through hole and a second position state for opening the through hole; the covering part rotates relative to the through hole under the action of external force and drives the first elastic arm to elastically deform so as to be in a second position state; the first elastic arm resets after the external force is withdrawn and drives the covering part to be in the first position state. The structure of the dustproof structure can be simplified, and the assembling difficulty of the dustproof structure can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to aerosol generating technical field especially, it relates to a dustproof structure and aerosol generating device. BACKGROUND

[0002] On the market, the tobacco rod is usually provided with a dust cover, and foreign matters can be prevented from entering the tobacco rod through the dust cover. The dust cover usually includes three parts of a hinge, a rotating shaft and a reset mechanism. Although this structure can effectively prevent dust from entering the tobacco rod and maintain the hygiene and service life of the tobacco rod, the structure is relatively complex, which brings great challenges to production and assembly. The cooperation of the hinge and the rotating shaft requires high precision, and problems such as looseness or non-smoothness are prone to occur during installation, affecting the use experience. The reset mechanism needs to ensure that the flap can be automatically closed, and needs a special fixed position.

[0003] Therefore, due to the complexity of the structure, in the case of small installation space, the size of the parts is small, the installation is difficult, and the parts are prone to jamming or improper installation, which causes the device to be unable to be used normally. In addition, the complexity of the structure also increases the production cost, especially in large-scale production, the precise machining and assembly process of each part requires a large amount of manpower and time, which increases the complexity and cost of production. SUMMARY

[0004] The purpose of the embodiments of the present application is to provide a dustproof structure, which aims to solve the problem of how to simplify the structure of the dustproof structure and reduce the difficulty of assembly.

[0005] To achieve the above-mentioned purpose, the technical scheme adopted by the present application is:

[0006] In a first aspect, a dustproof structure is provided, which includes a dust cover and a housing having a receiving cavity. The surface of the housing is provided with a through hole communicating with the receiving cavity. The dust cover includes a first elastic arm connected to the edge of the through hole and having an elastic restoring force, and a covering part connected to the first elastic arm. The covering part has a first position state of closing the through hole and a second position state of opening the through hole. The covering part rotates relative to the through hole under the action of an external force and drives the first elastic arm to elastically deform, so as to be in the second position state. The first elastic arm resets after the external force is removed, and drives the covering part to be in the first position state.

[0007] In some embodiments, the dust cover is located in the receiving cavity, and the covering part rotates inwardly to switch from the first position state to the second position state; or the dust cover is located outside the receiving cavity, and the covering part rotates outwardly to switch from the first position state to the second position state.

[0008] In some embodiments, the first elastic arm is bent at one end of the cover part towards the through hole, so that the cover part is kept in the first position state.

[0009] In some embodiments, the dustproof cover further comprises a first magnetic member connected to the cover part and a second magnetic member fixedly arranged opposite to the first magnetic member, the first magnetic member and the second magnetic member interact through a magnetic field, so that the cover part is kept in the first position state.

[0010] In some embodiments, two dustproof covers are arranged, two first elastic arms are respectively connected to two opposite edges of the through hole, and two cover parts are synchronously kept in the first position state or synchronously kept in the second position state.

[0011] In some embodiments, the dustproof cover further comprises a third magnetic member connected to the cover part and a fourth magnetic member fixedly arranged opposite to the shell, two third magnetic members respectively interact with two fourth magnetic members through a magnetic field, so that the cover part is kept in the first position state.

[0012] In some embodiments, the dustproof cover is arranged in the accommodating cavity, a fixing groove is further arranged in a cavity wall of the accommodating cavity, two fourth magnetic members are arranged in the fixing groove, and the third magnetic member and the corresponding fourth magnetic member repel each other magnetically.

[0013] In some embodiments, the third magnetic member is a magnet, and magnetic poles of two third magnetic members are arranged opposite to each other.

[0014] In some embodiments, the dustproof cover further comprises a second elastic arm with an elastic restoring force, one end of the second elastic arm is fixedly arranged, the other end of the second elastic arm is arranged on a rotating path of the cover part, and the second elastic arm is compressed when the cover part is kept in the second position state.

[0015] In a second aspect, an aerosol generating device is provided, which comprises the dustproof structure.

[0016] The dustproof structure provided by the present application has the following advantages: by adopting the first elastic arm with the elastic restoring force and the cover part connected to the first elastic arm, when the cover part is rotated relative to the through hole under the action of an external force and kept in the second position state, the first elastic arm is elastically deformed and bent, the through hole is opened, and other structural members can enter the accommodating cavity through the through hole, and meanwhile the cover part is kept in the second position state. After the structural members leave the through hole, i.e. the external force is removed, the first elastic arm can be reset, the elastic restoring force of the first elastic arm resets the cover part to the first position state, and the through hole is closed, so that the structure of the dustproof structure is simplified, and the assembly difficulty thereof is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or exemplary description will be briefly introduced. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative effort based on these drawings.

[0018] Figure 1 is a perspective structural schematic view of the dustproof structure provided by the present application and the covering part is in the first position state;

[0019] Figure 2 is a perspective structural schematic view of the dustproof structure provided by the present application and the covering part is in the first position state; Figure 1 is a perspective structural schematic view of the dustproof structure provided by the present application and the covering part is in the first position state;

[0020] Figure 3 is a perspective structural schematic view of the dustproof structure provided by the present application and the covering part is in the first position state;

[0021] Figure 4 is a perspective structural schematic view of the dustproof structure provided by the present application and the covering part is in the first position state; Figure 3 is a perspective structural schematic view of the dustproof structure provided by the present application and the covering part is in the first position state;

[0022] Figure 5 is a perspective structural schematic view of the dustproof structure provided by the present application and the covering part is in the first position state; Figure 1 is a perspective structural schematic view of the dustproof structure provided by the present application and the covering part is in the first position state;

[0023] Figure 6 is a perspective structural schematic view of the dustproof structure provided by the present application and the covering part is in the first position state;

[0024] Figure 7 is a perspective structural schematic view of the dustproof structure provided by the present application and the covering part is in the first position state;

[0025] Figure 8 is a perspective structural schematic view of the dustproof structure provided by the present application and the covering part is in the first position state;

[0026] Figure 9 is a perspective structural schematic view of the dustproof structure provided by the present application and the covering part is in the first position state;

[0027] Figure 10 is a perspective structural schematic view of the dustproof structure provided by the present application and the covering part is in the first position state;

[0028] Figure 11is a perspective view of the dustproof structure provided by another embodiment of the present application and the two covering parts are in the second position state;

[0029] Figure 12 is Figure 10 a perspective view of the dustproof cover.

[0030] In the drawings, various reference numbers refer to components that perform the same or similar functions. That is, those components that have the same reference number (reference sign) function in the same way.

[0031] 100, dustproof structure; 10, shell; 11, accommodating cavity; 12, through hole; 21, first magnetic part; 22, second magnetic part; 30, dustproof cover; 31, covering part; 32, first elastic arm; 33, positioning part; 34, second elastic arm; 311, positioning groove; 111, fixing groove; 112, avoiding groove; 23, third magnetic part; 24, fourth magnetic part; DETAILED DESCRIPTION

[0032] In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and should not be used to limit the present application.

[0033] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or indirectly on the other component. When a component is referred to as being "connected to" another component, it can be directly or indirectly connected to the other component. The terms "first", "second" are only used for the purpose of convenient description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0034] Please refer to Figure 1 , Figure 3 and Figure 5 , the present application provides a dustproof structure 100 and an aerosol generating device having the same.

[0035] Please refer to Figure 1 , Figure 3 and Figure 5 , the dustproof structure 100 comprises a dustproof cover 30 and a shell 10 having an accommodating cavity 11. The material of the shell 10 can be plastic and can be integrally formed by injection molding process. The material of the dustproof cover 30 can be metal, such as metal iron or stainless steel. The material of the dustproof cover 30 can also be plastic, which is not limited here and can be selected according to actual conditions.

[0036] Please refer to Figure 1 , Figure 3 and Figure 5The surface of the shell 10 is provided with a through hole 12 communicating with the accommodating cavity 11, the dust cover 30 comprises a first elastic arm 32 connected to the edge of the through hole 12 and having an elastic restoring force, and a covering part 31 connected to the first elastic arm 32. It can be understood that the dust cover 30 can be located in the accommodating cavity 11, so that the first elastic arm 32 is connected to the inner edge of the through hole 12. The dust cover 30 can also be located outside the accommodating cavity 11, so that the first elastic arm 32 is connected to the outer edge of the through hole 12. The thickness of the first elastic arm 32 is smaller than the thickness of the covering part 31, so that the first elastic arm 32 has a certain bendability and elastic deformability, and the shape of the covering part 31 is matched with the shape of the through hole 12.

[0037] Please refer to Figures 1 to 4 The covering part 31 has a first position state of closing the through hole 12 and a second position state of opening the through hole 12; when the covering part 31 is in the first position state, it can prevent dust or foreign matter from entering the accommodating cavity 11 through the through hole 12, and when the covering part 31 is in the second position state, it can allow other components to pass through and enter the accommodating cavity 11. The covering part 31 rotates relative to the through hole 12 under the action of an external force and drives the first elastic arm 32 to bend and elastically deform to be in the second position state; the first elastic arm 32 resets after the external force is removed and drives the covering part 31 to be in the first position state.

[0038] Please refer to Figure 1 , Figure 2 and Figure 5 The dustproof structure 100 provided by the embodiment of the application comprises a first elastic arm 32 having an elastic restoring force and a covering part 31 connected to the first elastic arm 32. When the covering part 31 rotates relative to the through hole 12 under the action of an external force and is in the second position state, the first elastic arm 32 elastically deforms and bends, the through hole 12 is opened, and other structural components can enter the accommodating cavity 11 through the through hole 12, and at the same time, the covering part 31 remains in the second position state. After the structural components leave the through hole 12, that is, the external force is removed, the first elastic arm 32 can reset, the elastic force of the first elastic arm 32 drives the covering part 31 to reset to the first position state and closes the through hole 12, thereby simplifying the structure of the dustproof structure 100 and reducing the assembly difficulty.

[0039] Please refer to Figure 1 and Figure 2 In some embodiments, the dust cover 30 is located in the accommodating cavity 11, and the covering part 31 rotates inwardly to switch from the first position state to the second position state; or the dust cover 30 is located outside the accommodating cavity 11, and the covering part 31 rotates outwardly to switch from the first position state to the second position state.

[0040] It can be understood that when the dust cover 30 is located in the accommodating cavity 11, the first elastic arm 32 is connected to the inner edge of the through hole 12, and the cover part 31 is rotated into the accommodating cavity 11 under the action of an external force to switch from the first position state to the second position state.

[0041] When the dust cover 30 is located outside the accommodating cavity 11, the first elastic arm 32 is connected to the outer edge of the through hole 12, and the cover part 31 is rotated out of the accommodating cavity 11 under the action of an external force to switch from the first position state to the second position state.

[0042] Please refer to Figure 1 , Figure 2 and Figure 5 It can be understood that the through hole 12 can be a plug hole for inserting a cigarette, when the cover part 31 is located in the accommodating cavity 11, an external force can be applied to the cover part 31 to drive the cover part 31 to rotate into the accommodating cavity 11 to be in the second position state, and then the cigarette is inserted into the through hole 12.

[0043] Please refer to Figures 3 to 4 , the through hole 12 can also be an air inlet hole for gas flowing into the accommodating cavity 11, when the cover part 31 is located in the accommodating cavity 11, an external force can be applied to the cover part 31 to drive the cover part 31 to rotate into the accommodating cavity 11 to be in the second position state, and then the gas flows into the accommodating cavity 11 through the through hole 12.

[0044] Please refer to Figure 6 In some embodiments, the first elastic arm 32 is bent at one end of the cover part 31 towards the through hole 12 to keep the cover part 31 in the first position state.

[0045] Please refer to Figure 6 Optionally, the first elastic arm 32 is bent to make the cover part 31 have a continuous upward force F, which can keep the first position state and ensure the closing of the through hole 12, and when the cover part 31 is subjected to an accidental impact, the first elastic arm 32 can ensure the cover part 31 to be accurately reset to the first position state, thereby enhancing the sealing performance of the dustproof structure 100, ensuring that the cover part 31 is stably kept in the first position state without external force interference, preventing dust from entering the accommodating cavity 11, and effectively preventing dust.

[0046] Please refer to Figures 5 to 6Optionally, the dust cover 30 further comprises a positioning portion 33 connected to the hole edge of the through hole 12, and two ends of the first elastic arm 32 are connected to the positioning portion 33 and the covering portion 31 respectively. The positioning portion 33 can be located in the accommodating cavity 11 or outside the accommodating cavity 11.

[0047] Referring to Figures 5 to 6 Optionally, the first elastic arm 32 is plate-shaped, the covering portion 31 is plate-shaped, and the thickness of the first elastic arm 32 is less than the thickness of the covering portion 31. The first elastic arm 32 has a certain elastic restoring force. The covering portion 31, the first elastic arm 32 and the positioning portion 33 are integrally formed, so that the first elastic arm 32 can drive the covering portion 31 to switch to or maintain the first position state by the elastic restoring force.

[0048] Referring to Figure 1 In some embodiments, the dust cover 30 further comprises a first magnetic member 21 connected to the covering portion 31 and a second magnetic member 22 fixedly arranged opposite to the first magnetic member 21. The first magnetic member 21 and the second magnetic member 22 interact through a magnetic field to maintain the covering portion 31 in the first position state. The dustproof structure 100 further comprises a top cover which is detachably connected to the shell 10 and covers the through hole 12. The second magnetic member 22 is connected to the top cover.

[0049] Referring to Figure 1 It can be understood that when the dust cover 30 is located in the accommodating cavity 11, the first magnetic member 21 can be a magnet, the second magnetic member 22 can be metal iron, or the second magnetic member 22 is a magnet and the first magnetic member 21 is metal iron, or both the first magnetic member 21 and the second magnetic member 22 are magnets, so that the covering portion 31 is maintained in the first position state without external force by the magnetic attraction of the first magnetic member 21 and the second magnetic member 22.

[0050] When the dust cover 30 is located outside the accommodating cavity 11, the first magnetic member 21 and the second magnetic member 22 are both magnets, so that the covering portion 31 is maintained in the first position state without external force by the magnetic repulsion of the first magnetic member 21 and the second magnetic member 22.

[0051] Optionally, the magnet can be a static magnet, a constant magnet or a permanent magnet.

[0052] Referring to Figure 2 Optionally, the covering portion 31 is provided with a positioning groove 311, and the first magnetic member 21 is at least partially located in the positioning groove 311.

[0053] Referring to Figures 6 to 7In some embodiments, two dustproof covers 30 are provided, and two first elastic arms 32 are respectively connected to two opposite edges of the through hole 12, and two covering parts 31 are synchronously in the first position state or synchronously in the second position state.

[0054] Referring to Figures 6 to 7 Optionally, by providing two dustproof covers 30, two first elastic arms 32 and two covering parts 31 are used to open or close the through hole 12 together, which enhances the dustproof effect, improves the stability of the dustproof structure 100, and is conducive to realizing the miniaturization design of a single dustproof cover 30; a cigarette can abut against two covering parts 31 at the same time, drive the two covering parts 31 to rotate, and apply uniform elastic restoring force to two first elastic arms 32, thereby enhancing the durability and adaptability.

[0055] Referring to Figures 8 to 9 In some embodiments, the dustproof cover 30 further comprises a third magnetic member 23 connected to the covering part 31 and a fourth magnetic member 24 fixedly arranged opposite to the shell 10, and the magnetic fields of the two third magnetic members 23 interact with the magnetic fields of the two fourth magnetic members 24, so that the covering part 31 is in the first position state.

[0056] Referring to Figures 8 to 9 It can be understood that the third magnetic member 23 and the fourth magnetic member 24 are both provided with two, and the two fourth magnetic members 24 are both connected to the top cover.

[0057] Referring to Figures 8 to 9 It can be understood that when the dustproof cover 30 is located in the accommodating cavity 11, the two third magnetic members 23 can both be magnets, the two fourth magnetic members 24 can both be metal iron, or the two fourth magnetic members 24 can both be magnets, the two third magnetic members 23 can both be metal iron, or the two third magnetic members 23 and the two fourth magnetic members 24 can both be magnets, so that the covering part 31 is kept in the first position state under the action of the magnetic attraction between the two third magnetic members 23 and the two fourth magnetic members 24.

[0058] Referring to Figure 8 In the embodiment, the two third magnetic members 23 are located directly above the two fourth magnetic members 24. The two third magnetic members 23 and the two fourth magnetic members 24 are both magnets, and the magnetic poles of the two third magnetic members 23 are arranged in opposite directions, and the magnetic poles of the two fourth magnetic members 24 are arranged in opposite directions. During the action of the magnetic field, any third magnetic member 23 only has magnetic attraction with the corresponding fourth magnetic member 24, and has magnetic repulsion with the other fourth magnetic member 24, so that the third magnetic member 23 can be kept in the position of the through hole 12 by the corresponding fourth magnetic member 24, thereby improving the stability of the third magnetic member 23 in the first position state.

[0059] When the dust cover 30 is located outside the accommodating cavity 11, the two third magnetic members 23 and the two fourth magnetic members 24 are all magnets, so that the covering part 31 is kept in the first position state under no external force by repulsion between the two third magnetic members 23 and the two fourth magnetic members 24.

[0060] Please refer to Figures 7 to 8 Optionally, by setting the third magnetic member 23 and the fourth magnetic member 24 in the dust cover 30, the stability of the covering part 31 in the first position state is enhanced, so that the closed state of the dust cover 30 depends not only on the elastic force of the first elastic arm 32, but also on the auxiliary action of the magnetic field, a more reliable sealing effect is provided, and it is ensured that the covering part 31 can keep the stable first position state in various environments.

[0061] Please refer to Figure 9 In some embodiments, the dust cover 30 is located in the accommodating cavity, and the cavity wall of the accommodating cavity 11 is also provided with a fixing groove 111, and the two fourth magnetic members 24 are located in the fixing groove 111, and the third magnetic member 23 and the corresponding fourth magnetic member 24 repel each other magnetically.

[0062] It can be understood that the third magnetic member 23 and the fourth magnetic member 24 are both magnets, and the two third magnetic members 23 repel each other magnetically with the two fourth magnetic members 24.

[0063] Please refer to Figure 9 The fixing groove 111 keeps a proper distance from the covering part 31, so that the third magnetic member 23 and the fourth magnetic member 24 can interact with each other through the magnetic field, and meanwhile the fourth magnetic member 24 does not affect the inward rotation of the covering part 31.

[0064] Please refer to Figure 9 Optionally, when the dust cover 30 is located in the accommodating cavity 11, the third magnetic member 23 and the corresponding fourth magnetic member 24 repel each other magnetically.

[0065] When the dust cover 30 is located outside the accommodating cavity 11, the third magnetic member 23 and the corresponding fourth magnetic member 24 attract each other magnetically.

[0066] Please refer to Figure 8 In some embodiments, the third magnetic member 23 is a magnet, and the magnetic poles of the two third magnetic members 23 are set to be opposite. It can be understood that when the shell 10 is in the vertical direction in the axial direction, the upper end of one third magnetic member 23 is N, and the lower end is S. The upper end of the other third magnetic member 23 is S, and the lower end is N. The magnetic poles of the two fourth magnetic members 24 are also set to be opposite, and are matched with the two third magnetic members 23 respectively.

[0067] Please refer to Figure 8Optionally, by setting two third magnetic members 23 with opposite magnetic poles, so that any third magnetic member 23 only interacts with the corresponding fourth magnetic member 24 through the magnetic field, the independence of the two third magnetic members 23 during use is ensured, the mutual interference of the magnetic field is avoided, the sealing and stability of the two cover parts 31 are ensured, and the two cover parts 31 can quickly recover to the first position state after external disturbance.

[0068] Please refer to Figures 10 to 12 In some embodiments, the dust cover 30 further comprises a second elastic arm 34 with elastic restoring force, one end of the second elastic arm 34 is fixedly arranged, the other end of the second elastic arm 34 is located on the rotating path of the cover part 31, and the second elastic arm 34 is compressed when the cover part 31 is in the second position state.

[0069] Please refer to Figures 10 to 12 Optionally, by setting the second elastic arm 34, the compression of the second elastic arm 34 provides additional elastic restoring force, and when the cover part 31 switches from the second position state to the first position state, the first elastic arm 32 and the second elastic arm 34 jointly act, so that the cover part 31 can be smoothly switched to the first position state.

[0070] Please refer to Figures 10 to 12 In some embodiments, the second elastic arm 34 connects the cover part 31, ensures that the first elastic arm 32 and the second elastic arm 34 work cooperatively during work, increases the sealing effect of the cover part 31, enables the cover part 31 to quickly respond and be in the first position state, and increases the stability and protection performance of the dustproof structure 100.

[0071] Please refer to Figures 10 to 12 Optionally, the two ends of the second elastic arm 34 are connected with the positioning part 33 and the cover part 31 respectively, and the second elastic arm 34 is arranged in a bent state. The cavity wall of the accommodating cavity 11 is provided with a avoiding groove 112 corresponding to the position of the second elastic arm 34, and the second elastic arm 34 is at least partially located in the avoiding groove 112 when the cover part 31 is in the second position state.

[0072] Please refer to Figures 10 to 12 Optionally, the first elastic arm 32 is arranged at intervals.

[0073] The utility model also proposes an aerosol generating device, the aerosol generating device includes dustproof structure 100, the specific structure of dustproof structure 100 refers to the above-mentioned embodiment, because the aerosol generating device adopts all the technical schemes of the above-mentioned all embodiments, therefore also has all the beneficial effects brought by the technical scheme of the above-mentioned embodiment, here will not repeat.

[0074] Optionally, the aerosol generating device can be used in cooperation with a cigarette, and the cigarette is inserted into the through hole 12.

[0075] Optionally, the aerosol generating device can be an atomization generating device, and the through hole 12 is used for air inflow into the accommodating cavity.

[0076] The above is only optional embodiments of the present application and is not intended to limit the present application. The present application can have various modifications and changes for those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the scope of claims of the present application.

Claims

1. A dustproof structure, characterized in that, The dustproof cover and the shell with a containing cavity are provided with a through hole on the surface of the shell, the dustproof cover includes a first elastic arm connected to the edge of the through hole and having elastic restoring force, and a covering part connected to the first elastic arm; the covering part has a first position state of closing the through hole and a second position state of opening the through hole; the covering part rotates relative to the through hole under the action of external force and drives the first elastic arm to elastically deform, so as to be in the second position state; the first elastic arm resets after the external force is removed and drives the covering part to be in the first position state. The dustproof cover is located in the containing cavity, and the covering part rotates inwardly to switch from the first position state to the second position state; or the dustproof cover is located outside the containing cavity, and the covering part rotates outwardly to switch from the first position state to the second position state.

2. The dust prevention structure according to claim 1, wherein: One end of the first elastic arm connected to the covering part is bent towards the through hole, so that the covering part remains in the first position state.

3. The dust prevention structure according to claim 1, wherein: The dustproof cover further includes a first magnetic part connected to the covering part and a second magnetic part fixedly arranged opposite to the first magnetic part, the first magnetic part and the second magnetic part interact through a magnetic field to make the covering part remain in the first position state.

4. The dust prevention structure according to claim 1, wherein: Two dustproof covers are provided, two first elastic arms are respectively connected to two opposite edges of the through hole, and two covering parts are synchronously in the first position state or synchronously in the second position state.

5. The dust prevention structure according to claim 1, wherein: The dustproof cover further includes a third magnetic part connected to the covering part and a fourth magnetic part fixedly arranged opposite to the shell, two third magnetic parts respectively interact with two fourth magnetic parts through a magnetic field to make the covering part remain in the first position state.

6. The dust prevention structure according to claim 5, wherein: The dustproof cover is located in the containing cavity, and the cavity wall of the containing cavity is further provided with a fixing groove, two fourth magnetic parts are located in the fixing groove, and the third magnetic part and the corresponding fourth magnetic part repel each other.

7. The dust prevention structure according to claim 6, wherein: The third magnetic part is a magnet, and the magnetic poles of two third magnetic parts are arranged in opposite directions.

8. The dust prevention structure according to claim 6, wherein: The dustproof cover further includes a second elastic arm having elastic restoring force, one end of the second elastic arm is fixedly arranged, the other end of the second elastic arm is located on the rotating path of the covering part, and the second elastic arm is compressed when the covering part is in the second position state.

9. The dust prevention structure according to any one of claims 1 to 8, wherein: The dustproof structure includes any one of the dustproof structures according to claims 1-9.

10. An aerosol-generating device comprising: ​

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