Housing structure and opening and closing device

Abstract

The invention discloses a shell structure and an opening and closing device.The opening and closing structure comprises a base, a driving part, a transmission part and a shielding part, the base is provided with an opening, the driving part is rotationally connected with the base, and an installation space is defined by the driving part and the base; the transmission part is limited in the mounting space and is rotationally connected with the driving part, and the shielding part is movably arranged in the mounting space and is rotationally connected with the transmission part; and when the driving piece rotates relative to the seat body, the driving piece drives the transmission piece to drive the shielding part to translate in the mounting space so as to open or close the opening.

Description

Technical Field

[0001] The present invention relates to the technical field of aerosol, and particularly to a housing structure and an opening and closing device. Background Art

[0002] The heat-not-burn electronic cigarette mainly includes a housing and a heating device. The housing has a heating channel, and the heating device is located inside the housing and is used to heat the cigarette inserted into the heating channel. The end of the housing is provided with a switch structure for controlling the insertion opening of the heating channel to be opened or closed. In this way, when smoking, the switch can be controlled to open the insertion opening of the heating channel so as to install the heating product at the heating channel; when not smoking, the switch can be controlled to close the insertion opening of the heating channel to prevent dust and the like from entering the heating channel.

[0003] In the related art, the switch structure has a movable sliding cover, and the sliding cover is used to block dust or internal structure. During this process, because the sliding cover is exposed outside, it is not convenient to use and is prone to being damaged by knocking. Summary of the Invention

[0004] The main object of the present invention is to provide a housing structure, aiming to protect the parts of the switch structure from damage through a hidden design.

[0005] To achieve the above object, the switch structure proposed by the present invention includes a base body, a driving member, a transmission member and a shielding portion. The base body has an opening. The driving member is rotatably connected to the base body and encloses an installation space with the base body. The transmission member is limited in the installation space and is rotatably connected to the driving member. The shielding portion is movably arranged in the installation space and is rotatably connected to the transmission member.

[0006] Wherein, when the driving member rotates relative to the base body, the transmission member is driven to drive the shielding portion to translate in the installation space to open or close the opening.

[0007] The present invention also provides an opening and closing device including the above-mentioned switch structure. Description of the Drawings

[0008] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without creative efforts.

[0009] Figure 1 It is a schematic structural diagram of an embodiment of the switch structure provided by the present invention;

[0010] Figure 2Schematic diagram of another embodiment of the switch structure provided by the present invention;

[0011] Figure 3 For Figure 1 Schematic plan view of the structure shown;

[0012] Figure 4 Schematic diagram of an embodiment of the shielding member provided by the present invention;

[0013] Figure 5 Schematic diagram of the state switching of an embodiment of the switch structure provided by the present invention;

[0014] Figure 6 Schematic diagram of the state switching of an embodiment of the switch structure provided by the present invention;

[0015] Figure 7 Exploded schematic diagram of the structure of an embodiment of the switch structure provided by the present invention.

[0016] Explanation of the reference numerals in the drawings:

[0017] 100, switch structure; 100a, relief area; 100b, clearance area; 10, base body; 10a, opening; 11, second guiding part; 10b, first plugging part; 20, driving part; 21, second plugging part; 30, transmission part; 40, shielding member; 41, connecting section; 411, rack structure; 42, shielding section; 421, first limiting surface; 422, second limiting surface; 40a, first guiding part.

[0018] The realization of the object, functional features and advantages of the present invention will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0020] It should be noted that if there are directional indications (such as up, down, left, right, front, back,...) involved in the embodiments of the present invention, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0021] In addition, if the embodiments of the present invention involve descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel scenarios. Taking "A and / or B" as an example, it includes Scenario A, or Scenario B, or the scenario where both A and B are satisfied simultaneously. In addition, the technical solutions between the embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0022] The present invention provides a switch structure 100. Please refer to Figure 1 , the switch structure 100 includes a base 10, a driving member 20, a transmission member 30, and a shielding portion. The base 10 has an opening 10a. The driving member 20 is rotatably connected to the base 10 and encloses an installation space with the base 10. The transmission member 30 is limited in the installation space and is rotatably connected to the driving member 20. The shielding portion is movably disposed in the installation space and is rotatably connected to the transmission member 30. Wherein, when the driving member 20 rotates relative to the base 10, the driving member 20 drives the transmission member 30 to drive the shielding portion to translate in the installation space to open or close the opening 10a.

[0023] It should be explained that the switch structure 100 can be applied to opening and closing devices with opening and closing requirements. The opening and closing devices can be aerosol production devices (electronic equipment category), solid air fresheners (daily necessities category), etc. Taking the aerosol production device as an example, the top cover of the aerosol production device has an inlet for inserting an aerosol rod. The switch structure 100 is disposed in the aerosol production device and is located below the top cover. The shielding portion faces the inlet of the top cover. By driving the shielding portion to translate, the inlet of the top cover and the opening 10a of the base 10 are simultaneously opened, so as to realize the insertion of the aerosol rod. Taking the solid air freshener as an example, the solid air freshener includes a housing and a top cover. The space of the housing is used to place volatile solid fragrances. The top cover is provided with an outlet for the fragrance to dissipate. The switch structure 100 proposed by the present invention is disposed between the housing and the top cover. The base 10 of the switch structure 100 is connected to the housing. The shielding portion faces the outlet of the top cover. By driving the shielding portion to translate, the outlet of the top cover and the opening 10a of the base 10 are simultaneously opened or closed, so as to realize the dissipation or blocking of the fragrance.

[0024] In this technical solution, the hidden design of the switch structure 100 makes the parts of the switch structure 100 no longer exposed, making the overall appearance more concise and delicate, enhancing the visual effect and grade of the product, meeting the aesthetic needs of modern consumers for product appearance design, and being conducive to enhancing the market competitiveness of the product; further, the present invention hides the parts, effectively avoiding damage to the parts caused by knocking during use, thereby improving the reliability and durability of the switch structure 100, extending the service life of the product, and reducing the maintenance cost and replacement frequency; at the same time, problems such as jamming and malfunction caused by knocking damage are reduced, ensuring the smoothness and consistency of the switch action. Users can more easily open or close the opening 10a during use. In addition, the hidden switch structure 100 can be applied to various devices with opening and closing requirements, such as aerosol production devices, solid air fresheners, etc., reflecting good versatility and a wide range of applications, providing an effective protection and operation solution for opening and closing devices in different fields, and having great application value and promotion prospects.

[0025] Specifically, the base body 10 is disposed at the opening 10a of the housing of the opening and closing device. The base body 10 and the housing can form an integral structure through integral molding to ensure the structural strength, or can be detachably connected by means of plugging, screwing, etc., facilitating the replacement of the switch structure 100 and / or the parts of the opening and closing device. In one embodiment, the switch structure 100 is applied to an aerosol production device, and the aerosol production device is a heat-not-burn electronic cigarette. The base body 10 and the housing are made of the same material and are injection molded by a mold to make the base body 10 and the housing an integral structure to ensure airtightness; in another embodiment, the switch structure 100 is applied to a solid air freshener, and the base body 10 and the housing are connected by a plugging method. When the solid fragrance of the solid air freshener volatilizes completely, the entire switch structure 100 can be disassembled to place new solid fragrance into the inner cavity of the housing.

[0026] The driving member 20 is rotatably arranged above the seat body 10, and its overall shape is a hollow ring shape with a certain thickness. After the driving member 20 and the seat body 10 are assembled, an installation space is formed by enclosing them together. The transmission member 30 and the shielding portion are both located in the installation space. Then, a top cover of the opening and closing device is placed above the driving member 20 to shield the installation space, so as to reduce the interference of the external environment on the transmission member 30 and the shielding portion and ensure the cooperation stability of the driving member 20, the transmission member 30, and the shielding portion. In an embodiment, the driving member 20, the transmission member 30, and the shielding portion can form a crank-slider mechanism, that is, one end of the transmission member 30 is rotatably connected to the driving member 20, and the other end is fixedly connected to the shielding portion. When the driving member 20 rotates relative to the seat body 10 under an external force, the transmission member 30 rotates to drive the shielding portion to translate in the installation space, thereby opening or closing the opening 10a on the seat body 10. In another embodiment, the driving member 20, the transmission member 30, and the shielding portion can be meshed with each other. The inner peripheral surface of the driving member 20 is provided with a tooth surface, the transmission member 30 is a gear, and the shielding portion has a rack. In this way, when the driving member 20 rotates relative to the seat body 10 under an external force, the transmission member 30 rotates to drive the shielding portion to translate in the installation space, thereby opening or closing the opening 10a on the seat body 10.

[0027] In an embodiment of the present invention, the switch structure 100 is provided with a plurality of transmission members 30, each transmission member 30 is rotatably connected to the driving member 20, the shielding portion includes a plurality of shielding members 40 whose quantity matches that of the transmission members 30, and the shielding members 40 are arranged in sequence along the circumferential direction of the opening 10a. Each shielding member 40 is rotatably connected to a transmission member 30. Please refer to Figure 2 , in an embodiment, the switch structure 100 is provided with two transmission members 30, and the two transmission members 30 are symmetrically arranged on both sides of the opening 10a of the seat body 10. Each transmission member 30 is connected to a shielding member 40. At the same time, each shielding member 40 is provided with a semi-circular notch. By rotating the driving member 20 forward and backward, each shielding member 40 can move back and forth relative to the opening 10a of the seat body 10 in the accommodation space. When the semi-circular notch of the shielding member 40 and the opening 10a of the seat body 10 are misaligned in the direction of the orthographic projection on the seat body 10, it can be regarded that the shielding member 40 covers the opening 10a of the seat body 10. When the semi-circular notch of the shielding member 40 and the opening 10a of the seat body 10 overlap in the direction of the orthographic projection on the seat body 10, it can be regarded that the shielding member 40 opens the opening 10a of the seat body 10. Please refer to Figure 3In another embodiment, the switch structure 100 is provided with four transmission members 30, and the four transmission members 30 are evenly distributed around the opening 10a of the seat body 10 and are rotatably connected to the driving member 20. The four shielding members 40 are arranged in sequence along the circumferential direction of the opening 10a, and each transmission member 30 is connected to a shielding member 40. At the same time, the end of each shielding member 40 away from the transmission member 30 is located in the central area of ​​the opening 10a of the seat body 10 when the switch structure 100 is in the closed state. When the driving member 20 rotates, each transmission member 30 rotates to drive the shielding member 40 connected thereto to rotate. The four shielding members 40 move relatively away from or closer to each other during the translation, thereby opening or closing the opening 10a of the seat body 10; it can be understood that in the above embodiment, when the switch structure 100 switches from the closed state to the open state, each shielding member 40 has a large overlapping area corresponding to the starting position and the ending position, and each overlapping area can reduce the space required for the translation of each shielding member 40, thereby miniaturizing the switch structure 100, or having more space to install functional parts without changing the cross-sectional size of the accommodating space, thereby improving the functionality of the opening and closing device.

[0028] Specifically, see Figure 4 Each shielding member 40 includes a connecting section 41 and a shielding section 42, each connecting section 41 is provided with a rack structure 411, each rack structure 411 meshes with a transmission member 30, and the end of each shielding section 42 away from the transmission member 30 can move away from or close to the opening 10a, wherein the driving member 20, the transmission member 30 and the shielding member 40 are meshed in sequence, and the meshing mode between the three can ensure the precise transmission of motion between the components. When the driving member 20 is rotated by an external force, the rotation can be accurately converted into a corresponding rotation of the transmission member 30 through the meshing with the transmission member 30, and then the shielding member 40 is driven to translate smoothly through the meshing of the transmission member 30 and the shielding member 40. This precise motion transmission relationship enables the shielding member 40 to move according to a preset position and trajectory when opening or closing the opening 10a. It effectively avoids problems such as shaking, offset or jamming during movement, thereby improving the reliability and stability of the switch structure 100, ensuring the accuracy and consistency of the opening and closing of the opening 10a, and achieving accurate and stable opening and closing operations whether inserting an aerosol stick in an aerosol production device or controlling the fragrance emission in a solid air freshener; in addition, the contact stress distribution between the driving member 20, the transmission member 30 and the shielding member 40 is relatively uniform, and local excessive wear is not prone to occur, thereby extending the service life of the switch structure 100, and when the switch structure 100 needs to be maintained or parts need to be replaced, the meshing connection method usually has good detachability, which is convenient for quickly locating and replacing faulty parts, reducing maintenance costs and repair difficulties, and improving the maintainability and service life of the product.

[0029] Further, please refer to Figure 5 and Figure 6, each shielding segment 42 has a first limiting surface 421 and a second limiting surface 422; the switch structure 100 has a closed state and an open state. When switching back and forth between the closed state, the open state, the first limiting surface 421 of each shielding segment 42 abuts against the second limiting surface 422 of the adjacent shielding segment 42 arranged therewith, and the second limiting surface 422 of each shielding segment 42 abuts against the first limiting surface 421 of another adjacent shielding segment 42 arranged therewith. Specifically, in the direction from near the driving member 30 to far from the driving member 30, the cross-sectional dimension of each shielding segment 42 gradually becomes smaller, thus forming an edge. The two side surfaces of the edge form inclined first limiting surface 421 and second limiting surface 422. Both the first limiting surface 421 and the second limiting surface 422 are straight surfaces. In the closed state, the four edges are located at the center of the opening 10a of the seat body 10, thus closing the opening 10a of the seat body 10. At this time, along the circumferential direction of the opening 10a, any two adjacent first limiting surfaces 421 and second limiting surfaces 422 are in mutual abutment. At the same time, the connecting segment 41 meshes with the driving member 30. In this way, each shielding member 40 is restricted from two translational degrees of freedom on the bearing surface of the seat body 10 by the shielding members 40 and the driving member 30 on both sides (the translational degree of freedom in the vertical direction can be restricted by the top cover of the opening and closing device and the bearing surface of the seat body 10). And an object only has three translational degrees of freedom in space. That is, when the driving member 20 is not driven by an external force, each shielding member 40 is always in a restricted state and will not shift in position; when switching back and forth between the closed state and the open state, the first limiting surface 421 and the second limiting surface 422 arranged in an inclined plane ensure that any two adjacent first limiting surfaces 421 and second limiting surfaces 422 are always in a mutual abutment and matching relationship. Each shielding member 40 can translate because the second abutting surface of the adjacent another shielding member 40 gives way a retreat space during movement. In this way, it can be ensured that when suddenly stopping rotating the driving member 20 during the process of switching back and forth between the closed state and the open state, each shielding member 40 can maintain a static state. When the opening and closing device is a heat-not-burn electronic cigarette (an aerosol production device), in an application scenario, before the heat-not-burn electronic cigarette enters the use state (that is, the switch structure 100 is switched from the closed state to the open state), the cartridge has not been inserted into the heating channel of the electronic cigarette, and the smoker usually holds up the electronic cigarette towards the mouth. At this time, the heat-not-burn electronic cigarette is in an inclined state. In the inclined state, each shielding member 40 will not translate even under the action of gravity, ensuring that the switch structure 100 will not be reversely switched from the open state to the closed state, and avoiding the user needing to rotate the driving member 20 twice due to a pause;In the open state, the four shielding members 40 are abutted in sequence by the first limiting surface 421 and the second limiting surface 422, and the two translational degrees of freedom of each shielding member 40 are constrained. After the switch structure 100 is applied to the opening and closing device, the third translational degree of freedom of each shielding member 40 is constrained by the top cover of the opening and closing device. In this way, when the opening and closing device is in the tilting device, the shielding member 40 will not automatically translate due to gravity. As described above, by setting the first limiting surface 421 and the second limiting surface 422 and abutting the two surfaces against each other, it can be ensured that each shielding member 40 will not move by itself in any state, and the stability of the shielding member 40 covering the opening 10a of the seat body 10 is ensured. ;

[0030] Furthermore, the length of the second limiting surface 422 is greater than the length of the first limiting surface 421, so that a clearance area 100a is formed between each shielding segment 42 and the adjacent shielding segment 42, see Figure 3 The translation path of the connecting section 41 is used as a constraint boundary. The area from the constraint boundary to the opening 10a of the seat body 10 is a clearance area 100a formed in the accommodating space. The clearance area 100a allows the shielding member 40 to move back and forth along the extension direction of the rack structure 411 of the connecting section 41 to avoid movement interference between adjacent shielding members 40.

[0031] At the same time, a clearance area 100b is formed between the translation path of each connecting segment 41 and the inner circumference of the driving member 20, see Figure 3 , because each shielding member 40 can only move back and forth along the extension direction of its rack structure 411, thereby ensuring that the shielding member 40 will not move to the area from the constraint boundary to the inner circumference of the driving member 20, a plurality of avoidance areas 100b are formed in the accommodating space, and the area of ​​each avoidance area 100b will not change in size due to the change of the state of the switch structure 100. When it is necessary to upgrade the function of the opening and closing device using the switch structure 100 and add other components, the avoidance area 100b provides additional installation space. For example, when the opening and closing device is an aerosol generating device, a Hall element can be fixed in the avoidance area 100b, and the movable shielding member 4 0, and when the shielding member 40 moves, the magnetic field strength felt by the Hall element can change in strength or weaken, thereby generating two different electrical signals. The two different electrical signals can be transmitted to the control mainboard of the aerosol generating device by wired transmission or wireless transmission. The control mainboard receives the two electrical signals and can be used to power on or off devices such as heating wires and light sources. As described above, the avoidance area 100b formed by the translation of the shielding member 40 provides sufficient installation space for the hardware required for the function upgrade of the opening and closing device, which can be achieved without replacing the switch structure 100 as a whole, thereby reducing the cost required for product iteration.

[0032] To ensure that the shielding member 40 can achieve automatic stopping and directional movement during translation, a first guiding portion 40a is provided on the connecting section 41 or the shielding section 42 of each shielding member 40, and the base body 10 has a second guiding portion 11 adapted to the first guiding portion 40a. The first guiding portion 40a is adapted to the second guiding portion 11. In one embodiment, please refer to Figure 1 the first guiding portion 40a is a groove structure arranged parallel to the gear structure of the connecting section 41. A convex second guiding portion 11 is fixed on the bearing surface of the base body 10. The second guiding portion 11 is inserted into the first guiding portion 40a. When the switch structure 100 is in the closed state, the second guiding portion 11 abuts against one end of the first guiding portion 40a, so that the user can only install in the correct rotation direction (counterclockwise or clockwise, not limited here) to switch the switch structure 100 from the closed state to the open state. As the shielding member 40 moves, the second guiding portion 11 abuts against the other end of the first guiding portion 40a, thereby achieving automatic stopping and preventing the transmission member 30 and the shielding member 40 from disengaging from each other, so that the switch structure 100 is locked in the open state; In another embodiment, at least two convex second guiding portions 11 are provided on the bearing surface of the base body 10. The two second guiding portions 11 are arranged at intervals along a straight line direction parallel to the extension direction of the gear structure to ensure that the shielding member 40 can only translate in a straight line direction to achieve the function of directional movement. It can be understood that the second guiding portion 11 is a groove structure provided on the bearing surface of the base body 10, and the first guiding portion 40a is a convex structure provided on the side of the shielding member 40 facing the base body 10. The first guiding portion 40a moves back and forth in the groove structure, thereby achieving the automatic stopping and directional movement of the shielding member 40. Since there is a replacement basis between the first guiding portion 40a and the second guiding portion 11, no limitation is made on whether the first guiding portion 40a and the second guiding portion 11 are groove structures or convex structures.

[0033] Furthermore, to improve the connection stability between the base body 10 and the driving member 20, a first insertion portion 10b is provided on the outer edge of the base body 10, and a second insertion portion 21 is provided at the bottom of the driving member 20. The second insertion portion 21 is adapted to the first insertion portion 10b. In one embodiment, please refer to Figure 7, a plurality of first insertion portions 10b with a socket structure are provided around the outer edge of the base 10 along the periphery of its opening 10a. The bottom of the driving member 20 is provided with a second insertion portion 21 that matches the number of socket structures. The second insertion portion 21 is provided in a convex shape, and each second insertion portion 21 is inserted into a first insertion portion 10b. In this way, when ensuring a stable connection relationship between the base 10 and the driving member 20, the driving member 20 can be smoothly rotated relative to the base 10; in another embodiment, a plurality of first insertion portions 10b provided in a convex shape are provided around the outer edge of the base 10 along the periphery of its opening 10a. The bottom of the driving member 20 is provided with a second insertion portion 21 that matches the number of first insertion portions 10b. The second insertion portion 21 is a socket structure. In this way, when ensuring a stable connection relationship between the base 10 and the driving member 20, the driving member 20 can be smoothly rotated relative to the base 10. Because there is a replacement basis between the first insertion portion 10b and the second insertion portion 21, the first insertion portion 10b and the second insertion portion 21 are not limited to being a groove structure or a convex structure.

[0034] The present invention also proposes an opening and closing device. The opening and closing device includes a switch structure 100. The opening and closing device is a device with an opening and closing requirement, such as an aerosol production device (electronic equipment type), a solid air freshener (daily necessities type), etc., which is not limited here. Above, the specific structure of the switch structure 100 refers to the above embodiments. Since the opening and closing device proposed by the present invention adopts all the technical solutions of the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated here one by one.

[0035] Further, the opening and closing device is an aerosol generating device. Specifically, the aerosol generating device includes a housing, a top cover, and a switch structure 100 provided between the housing and the top cover. It can be understood that the base 10 of the switch structure 100 can be formed as a part of the housing through an integral molding process, or can be assembled with the end of the housing by plugging or the like to form a structure that can be independent of the housing, which is not limited here.

[0036] In one embodiment, a heating channel and an installation space for isolating the heating channel are provided inside the housing. The installation space is used to accommodate a power supply, a main control board, electric wires, etc. A heating member electrically connected to the main control board is provided on the inner surface of the heating channel. The heating member can be a heating wire or a heating sheet, which is not limited here. The insertion end of the heating channel is aligned and communicated with the opening 10a of the base 10. The top cover is also provided with an opening, and its opening is correspondingly communicated with the opening 10a of the base 10. In this way, by rotating the switch structure 100, the opening of the top cover, the opening 10a of the base 10, and the heating channel can be connected.

[0037] Based on the above embodiments, the aerosol generating device further includes a bottom cover. A switch structure 100 is provided between the bottom cover and the housing. The bottom cover is provided with an air inlet for communicating with the air inlet end of the heating channel. The air inlet area of the air inlet can be controlled through the switch structure 100, so as to change the heating efficiency of the aerosol rod.

[0038] The above are only exemplary embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made under the technical concept of the present invention by using the content of the specification and drawings of the present invention, or direct / indirect application in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A switch structure, characterized in that, The switch structure comprises a seat, a driving member, a transmission member and a shielding portion, wherein the seat has an opening, the driving member is rotatably connected to the seat and enclosed with the seat to form an installation space; the transmission member is limited in the installation space and rotatably connected to the driving member, and the shielding portion is movably arranged in the installation space and connected to the transmission member; When the driving member rotates relative to the seat body, the transmission member is driven to drive the shielding portion to translate in the installation space to open or close the opening.

2. The switch structure according to claim 1, wherein, The switch structure is provided with a plurality of transmission members, each of which is rotatably connected to the driving member; the shielding portion comprises a plurality of shielding members whose number matches the transmission members, each of which is arranged in sequence along the circumferential direction of the opening, and each of which is rotatably connected to one of the transmission members.

3. The switch structure according to claim 2, characterized in that, Each of the shielding members comprises a connecting section and a shielding section. Each of the connecting section is provided with a rack structure. Each of the rack structures engages with a transmission member. The end of each of the shielding sections away from the transmission member can translate away from or close to the opening.

4. The switch structure according to claim 3, wherein, Each of the shielding segments has a first limit surface and a second limit surface; the switch structure has a closed state and an open state. When the closed state, the open state, and the closed state and the open state are switched back and forth, the first limit surface of each shielding segment abuts against the second limit surface of the shielding segment adjacent to it, and the second limit surface of each shielding segment abuts against the first limit surface of the shielding segment adjacent to it.

5. The switch structure according to claim 4, characterized in that, The length of the second limiting surface is greater than that of the first limiting surface, so that a clearance area is formed between each shielding segment and an adjacent shielding segment.

6. The switch structure according to claim 5, characterized in that, A clearance area is formed between the translation path of each connecting segment and the inner circumferential surface of the driving member.

7. The switch structure according to any one of claims 3 to 6, characterized in that, Each connecting section or shielding section of the shielding member is provided with a first guide portion, and the seat body has a second guide portion adapted to the first guide portion, and the first guide portion is adapted to the second guide portion.

8. The switch structure according to claim 7, wherein, A first plug-in portion is provided at the outer edge of the seat body, and a second plug-in portion is provided at the bottom of the driving member, wherein the second plug-in portion is matched with the first plug-in portion.

9. An opening and closing device, characterized in that, The switch device comprises a switch structure as claimed in any one of claims 1 to 8.

10. The opening and closing device according to claim 9, characterized in that, The opening and closing device is an aerosol generating device.

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