Opening and closing device and nebulizer
By rotating the knob assembly to drive the transmission assembly, the shielding component moves in a straight line, which solves the problem of the shielding component occupying a large space, optimizes the size of the atomizer, and reduces the impact of the opening and closing device on the size of the atomizer in other directions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUIZHOU WISMART TECH CO LTD
- Filing Date
- 2025-07-10
- Publication Date
- 2026-07-14
AI Technical Summary
In existing atomizer opening and closing mechanisms, the movement of the blocking component occupies a large amount of space, resulting in a large size for both the opening and closing mechanism and the atomizer.
By using a rotary knob assembly to drive the transmission assembly, the shielding component reciprocates along a straight line, replacing the swinging method of the shielding component in the existing technology. This only affects the dimension of the atomizer along the straight line, while reducing the dimensional impact in other directions.
By designing a blocking component with linear motion, the impact of the opening and closing device on the dimensions of the atomizer in directions other than the linear direction is reduced, thus achieving a miniaturized design of the atomizer.
Smart Images

Figure CN224483049U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of electric heating equipment technology, and in particular to an opening and closing device and an atomizer. Background Technology
[0002] Atomizers are used to heat objects and produce vapor. Atomizers have an insertion port for inserting the object to be heated, and an opening and closing device for controlling the opening and closing of the insertion port.
[0003] The opening and closing device may include a blocking element, which controls the opening or closing of the insertion port by swinging about a pivot axis.
[0004] However, the movement of the shielding component in the aforementioned related technologies occupies a large space, resulting in a large size of the opening and closing device, which in turn affects the size of the atomizer. Utility Model Content
[0005] This application provides an opening and closing device and an atomizer to solve the technical problems of low opening and closing accuracy of the opening and closing device in the above-mentioned related technologies, and the significant impact on the size of the atomizer.
[0006] To achieve the above objectives, the embodiments of this application provide the following technical solutions:
[0007] A first aspect of this application provides an opening and closing device, which is applied to an atomizer and includes:
[0008] The base has a through hole for connecting the mounting port of the atomizer;
[0009] The knob assembly is rotatably connected to the base;
[0010] A transmission component is rotatably connected to the base and is drive-connected to the knob component;
[0011] A shielding component is connected to the transmission assembly;
[0012] Driven by the rotation of the knob assembly, the transmission assembly drives the blocking member to reciprocate along the first direction to block or open the through hole.
[0013] The first aspect of this application provides an opening and closing device. By rotating a knob assembly, the knob assembly drives a transmission assembly to rotate. The transmission assembly then drives a blocking member to reciprocate linearly along a first direction, thereby blocking or opening a through hole. Compared to the prior art method of blocking the through hole by swinging, since the blocking member in this application moves linearly, it only affects the dimension of the atomizer along the first direction. Therefore, when designing the opening and closing device, only the dimension along the first direction needs to be considered, thus reducing the impact on the dimensions of the opening and closing device in other directions. This further reduces the impact of the opening and closing device on the dimensions of the atomizer in directions other than the first direction, thereby reducing the overall size of the atomizer.
[0014] In one possible implementation, the transmission assembly includes a rack disposed on the shield;
[0015] The knob assembly includes:
[0016] The drive gear meshes with the rack and, through rotation, drives the rack to reciprocate along a first direction.
[0017] The knob cover is connected to the drive gear, and the knob cover drives the drive gear to rotate.
[0018] In one possible implementation, the drive gear includes:
[0019] The main body has a boss, and the knob cover is fastened to the boss;
[0020] The teeth are located on the outer periphery of the main body and mesh with the rack.
[0021] One possible implementation also includes:
[0022] A first rotating shaft is disposed on the base, and the main body has a shaft hole, into which the first rotating shaft is inserted;
[0023] An elastic buckle is disposed on the outer periphery of the first rotating shaft, and the shaft hole has a locking part that cooperates with the elastic buckle.
[0024] In one possible implementation, the transmission assembly further includes an acceleration gear set;
[0025] One side of the acceleration gear set meshes with the drive gear, and the other side of the acceleration gear set meshes with the rack.
[0026] In one possible implementation, the acceleration gear set includes:
[0027] A first gear meshes with the drive gear, and the pitch circle of the first gear is smaller than the pitch circle of the drive gear.
[0028] The second gear is connected to the first gear and meshes with the rack. The pitch circle of the second gear is larger than that of the first gear, and the second gear rotates synchronously with the first gear.
[0029] In one possible implementation, the first gear and the second gear are an integral structure.
[0030] In one possible implementation, the base has a limiting groove extending along the first direction, and the shielding member has a slider corresponding to the limiting groove, the slider reciprocating within the limiting groove along the first direction.
[0031] In one possible implementation, there are two limiting grooves, which are spaced apart and arranged in parallel along a second direction, the second direction being perpendicular to the first direction;
[0032] The slider has two parts, and each slider corresponds to one of the limiting grooves.
[0033] In one possible implementation, the shielding element and the rack are an integral structure.
[0034] One possible implementation also includes a shell;
[0035] The outer shell is fastened to the base and forms a receiving cavity, and the transmission component and the shielding component are both located inside the receiving cavity;
[0036] The outer casing has a first opening and a second opening, and the first opening is connected to the through hole.
[0037] The knob assembly is disposed within the second opening and is partially located outside the housing.
[0038] A second aspect of this application provides an atomizer, which includes a body and an opening / closing device as described above. Attached Figure Description
[0039] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0040] Figure 1 This is a schematic diagram of the structure of an opening and closing device provided in an embodiment of this application;
[0041] Figure 2 for Figure 1 Exploded view of the opening and closing mechanism in the image;
[0042] Figure 3 This is a schematic diagram of an integrated shielding member and rack provided in an embodiment of this application.
[0043] Explanation of reference numerals in the attached figures:
[0044] 10 - Opening and closing device;
[0045] 100 - Base;
[0046] 110 - First pivot; 120 - Elastic buckle; 130 - Limiting groove; 140 - Through hole;
[0047] 200 - Knob assembly;
[0048] 210 - Drive gear; 220 - Knob cover;
[0049] 211-Main body; 212-Teeth;
[0050] 2111-Boss; 2112-Shaft hole; 2113-Snap-fit part;
[0051] 300 - Transmission assembly;
[0052] 310-Rack;
[0053] 400-Shielding component;
[0054] 410 - Slider;
[0055] 500-Acceleration Gear Set;
[0056] 510 - First gear; 520 - Second gear;
[0057] 600 - Casing;
[0058] 610 - First opening; 620 - Second opening. Detailed Implementation
[0059] As described in the background section, the movement of the shielding component in the aforementioned related technologies occupies a large amount of space, resulting in a larger size of the opening and closing device, which in turn affects the size of the atomizer.
[0060] The reason for this problem is that the blocking component in the existing opening and closing device is a swing blade. The swing blade opens or closes the insertion port by rotating around an axis. During the swinging process, the swing blade occupies a large area. When designing the opening and closing device, it is necessary to consider not only the size of the swing blade, but also the space that allows the swing blade to swing. In order to accommodate the swinging of the swing blade, the size of the opening and closing device will increase. When the opening and closing device is installed on the atomizer, in order to adapt to the size of the atomizer, the size of the opening and closing device is large, which will lead to the size of the atomizer increase, and thus the opening and closing device will affect the size of the atomizer.
[0061] To address the aforementioned technical problems, this application provides an opening and closing device and an atomizer. The opening and closing device rotates a knob assembly, which in turn drives a transmission assembly to rotate. The transmission assembly then drives a blocking member to reciprocate linearly along a first direction, thereby blocking or opening a through hole. Compared to the prior art method of blocking the through hole by swinging, since the blocking member in this application moves linearly, it only affects the atomizer's dimensions along the first direction. Therefore, when designing the opening and closing device, only the dimensions along the first direction need to be considered, thus reducing the impact on the dimensions of the opening and closing device in other directions. This further reduces the impact of the opening and closing device on the dimensions of the atomizer in directions other than the first direction, thereby minimizing the overall size of the atomizer.
[0062] To make the above-mentioned objectives, features, and advantages of the embodiments of this application more apparent and understandable, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0063] refer to Figure 1 and Figure 2 This application provides an opening and closing device 10, which is applied to an atomizer and may include a base 100, a knob assembly 200, a transmission assembly 300, and a shielding member 400.
[0064] The base 100 has a through hole 140 for connecting to the mounting port of the atomizer. The object to be heated is inserted into the mounting cavity through the through hole 140 and the mounting port. The through hole 140 and the mounting port are concentric and correspondingly positioned.
[0065] The knob assembly 200 is rotatably connected to the base 100, and the knob assembly 200 is rotatable relative to the base 100. The knob assembly 200 allows the user to rotate it. The knob assembly 200 can be aligned with the through hole 140 along a first direction (e.g., ...). Figure 2 The knobs are arranged at intervals in the X direction. The first direction can be the length direction of the opening and closing device 10. When the opening and closing device 10 is installed on the atomizer, the first direction can also be the length direction of the atomizer. The knob assembly 200 can be rotated both clockwise and counterclockwise.
[0066] The transmission assembly 300 is disposed on the base 100 and is rotatably connected to the knob assembly 200. Along the first direction, the transmission assembly 300 is located between the knob assembly 200 and the through hole 140.
[0067] The blocking member 400 is connected to the transmission assembly 300. Driven by the rotation of the knob assembly 200, the transmission assembly 300 can drive the blocking member 400 to reciprocate along the first direction to block or open the through hole 140.
[0068] In some embodiments, the blocking member 400 can be a baffle or a block. Specifically, the blocking member 400 can be a baffle with a relatively thin thickness, which can reduce the space occupied by the opening and closing device 10 and reduce the material cost of the baffle.
[0069] This application provides an opening and closing device 10. Rotating a knob assembly 200 causes a transmission assembly 300 to rotate, which in turn drives a blocking member 400 to reciprocate linearly along a first direction, thereby blocking or opening a through hole 140. Compared to the prior art method of blocking the through hole 140 by swinging, the blocking member 400 in this application moves linearly, affecting only the atomizer's dimensions along the first direction. Therefore, when designing the opening and closing device 10, only the dimensions along the first direction need to be considered, reducing the impact on the dimensions of the opening and closing device 10 in other directions. This further reduces the impact of the opening and closing device 10 on the dimensions of the atomizer in directions other than the first direction, thus reducing the overall size of the atomizer.
[0070] refer to Figure 1 and Figure 2 In some embodiments, the opening and closing device 10 may also include a housing 600. The housing 600 is fastened to the base 100 and forms a receiving cavity, and the transmission assembly 300 and the blocking member 400 are both located inside the receiving cavity.
[0071] By providing a housing 600, a receiving cavity is formed between the housing 600 and the base 100, which can house the transmission component 300 and the shield 400 within the receiving cavity. This prevents the transmission component 300 and the shield 400 from being exposed to the external environment, reduces the probability of the transmission component 300 and the shield 400 being damaged by impact, and improves the protection of the transmission component 300 and the shield 400.
[0072] In some embodiments, the housing 600 has a first opening 610 and a second opening 620, with the first opening 610 corresponding to the through hole 140, which facilitates the object to be heated to pass through the first opening 610, the through hole 140 and the mounting opening in sequence to be inserted into the mounting cavity.
[0073] The knob assembly 200 is disposed within the second opening 620 and partially located outside the housing 600. Another part of the knob assembly 200 can also be disposed within the receiving cavity, so as to ensure that the user can rotate the knob assembly 200 from outside the housing 600 and to protect the part of the knob assembly 200 located within the receiving cavity.
[0074] refer to Figure 2 In some embodiments, the transmission assembly 300 may include a rack 310 disposed on the shield 400, the rack 310 being capable of extending along a first direction.
[0075] The transmission assembly 300 includes a rack 310. Since the rack 310 has a relatively simple structure, it helps simplify the manufacturing process of the transmission assembly 300 and improve its production efficiency. The rack 310 has a straight structure and extends along the first direction, which reduces its space occupancy in directions other than the first direction. This, in turn, reduces the space occupancy of the transmission assembly 300 within the opening / closing device 10, contributing to the miniaturization design of the opening / closing device 10.
[0076] The knob assembly 200 may include a drive gear 210 and a knob cover 220. The drive gear 210 meshes with a rack 310 and, through rotation, drives the rack 310 to reciprocate along a first direction. The knob cover 220 is connected to the drive gear 210, and the knob cover 220 drives the drive gear 210 to rotate. The knob cover 220 and the drive gear 210 are capable of reciprocating along a third direction (e.g., ...). Figure 2 Arranged in the Z-direction.
[0077] By matching the pitch circle diameter of the drive gear 210 with the length of the rack 310, the movement distance of the shield 400 can be precisely controlled to ensure that the through hole 140 is fully covered or exposed.
[0078] The drive gear 210 meshes with the rack 310 to transmit torque smoothly, and the knob cover 220 has uniform rotational resistance, avoiding torque fluctuations caused by the lever effect of the swing blade in the prior art.
[0079] The meshing transmission method of the drive gear 210 and the rack 310 has a relatively simple structure, requires fewer parts in the transmission process, facilitates the assembly of the opening and closing device 10, improves assembly efficiency, and reduces the manufacturing cost of the opening and closing device 10.
[0080] refer to Figure 2In some embodiments, the drive gear 210 may include a body 211 and teeth 212. The body 211 has a boss 2111, and a knob cover 220 is fastened to the boss 2111. The teeth 212 are disposed on the outer peripheral side of the body 211 and mesh with the rack 310.
[0081] The snap-fit structure design of the knob cover 220 and the boss 2111 enables the knob cover 220 to be quickly positioned and installed, avoiding misalignment between the drive gear 210 and the knob cover 220.
[0082] The external tooth design of 212 can maximize the use of the outer edge space of the drive gear 210, reduce the overall diameter of the drive gear 210, and meet the miniaturization requirements of the opening and closing device 10 and the atomizer.
[0083] In some embodiments, the boss 2111 can be interference-fitted with the knob cover 220, which can improve the connection stability between the boss 2111 and the knob cover 220.
[0084] In some embodiments, the boss 2111 and the knob cover 220 can also be connected by a connector to prevent the knob cover 220 from sliding relative to the boss 2111 when it rotates under external force, which would prevent the knob cover 220 from driving the drive gear 210 to rotate.
[0085] refer to Figure 2 In some embodiments, the opening and closing device 10 may further include a first rotating shaft 110 and an elastic buckle 120. The first rotating shaft 110 is disposed on the base 100, and the main body 211 has a shaft hole 2112, in which the first rotating shaft 110 is inserted. The engagement of the rotating shaft with the shaft hole 2112 can limit the axial swing of the drive gear 210 along the first rotating shaft 110, improve the stability of the drive gear 210 during rotation, and ensure the meshing stability between the drive gear 210 and the rack 310.
[0086] The elastic buckle 120 is disposed on the outer periphery of the first rotating shaft 110, and the shaft hole 2112 has a snap-fit portion 2113 that cooperates with the elastic buckle 120.
[0087] The resilient snap-fit 120 allows for quick installation and removal of the drive gear 210, enabling replacement of worn drive gear 210 without disassembling the entire mechanism, thus reducing maintenance costs. The resilient snap-fit 120 locks the drive gear 210 in place, preventing it from loosening and falling off the shaft during frequent rotation, thereby improving the durability of the knob assembly 200.
[0088] In some embodiments, the elastic buckle 120 may include three, which are able to surround the outer periphery of the first rotating shaft 110 and are spaced apart and evenly arranged on the outer periphery of the first rotating shaft 110 to further improve the installation stability of the drive gear 210 on the base 100.
[0089] refer to Figure 2 In some embodiments, the transmission assembly 300 may further include an acceleration gear set 500, one side of which meshes with the drive gear 210, and the other side of which meshes with the rack 310.
[0090] The transmission ratio can be adjusted by the acceleration gear set 500. The transmission ratio of the acceleration gear set 500 can amplify the influence of the knob rotation angle on the rack 310 displacement, so as to realize small-angle rotation of the knob assembly 200 and large-distance movement of the rack 310 and the blocking member 400 along the first direction. This reduces the angle of rotation required by the user when using the knob assembly 200, reduces the physical exertion of the user when using the opening and closing device 10, and improves the user experience.
[0091] refer to Figure 2 In some embodiments, the acceleration gear set 500 may include a first gear 510 and a second gear 520. The first gear 510 meshes with the drive gear 210, and the pitch circle of the first gear 510 is smaller than that of the drive gear 210. The second gear 520 is connected to the first gear 510 and meshes with the rack 310, and the pitch circle of the second gear 520 is larger than that of the first gear 510. The first gear 510 and the second gear 520 rotate synchronously.
[0092] In this way, the engagement of the drive gear 210 with the first gear 510, which has a smaller pitch circle, can increase the rotation angle of the first gear 510. The first gear 510 and the second gear 520 rotate synchronously. Since the pitch circle of the first gear 510 is smaller than that of the second gear 520, the arc length of the second gear 520 can be increased, thereby increasing the distance the rack 310 moves along the first direction.
[0093] refer to Figure 2 In some embodiments, the first gear 510 and the second gear 520 are an integral structure. The first gear 510 and the second gear 520 can be arranged along a third direction, with the second gear 520 located below the first gear 510.
[0094] The integrated structure avoids the assembly errors of split gears, reduces the number of parts in the accelerator gear set 500, improves the assembly efficiency of the accelerator gear set 500, and facilitates the manufacturing of the accelerator gear set 500.
[0095] refer to Figure 2 and Figure 3 In some embodiments, the base 100 has a limiting groove 130 extending in a first direction, and the shield 400 has a slider 410 corresponding to the limiting groove 130, the slider 410 reciprocating in the limiting groove 130 in the first direction.
[0096] By setting the limiting groove 130, the slider 410 and the blocking member 400 can be restricted to move along the first direction through mechanical limiting, so as to prevent the blocking member 400 from shaking during the movement along the first direction and improve the stability of the blocking member 400 moving along the first direction.
[0097] refer to Figure 2 and Figure 3 In some embodiments, the limiting groove 130 has two grooves, and the two limiting grooves 130 are along the second direction (e.g., Figure 2 The sliders 410 are spaced apart and parallel to each other in the Y direction, and the second direction is perpendicular to the first direction. There are two sliders 410, and each slider 410 corresponds to a limiting groove 130.
[0098] By using two sliders 410 corresponding to the two limiting grooves 130, the stability of the blocking member 400 moving along the first direction can be further improved. The double limiting grooves 130 can distribute the force and avoid the movement obstruction caused by the jamming or wear of one side of the slider 410. The double slider design can prevent the blocking member 400 from tilting due to uneven force during movement, ensuring that the plane of the through hole 140 is always parallel to the blocking member 400.
[0099] refer to Figure 2 and Figure 3 In some embodiments, the shield 400 and the rack 310 can be an integral structure.
[0100] By integrating the shielding member 400 with the rack 310, the structure of the opening and closing device 10 can be simplified, the number of parts can be reduced, and the assembly efficiency of the opening and closing device 10 can be improved.
[0101] The shield 400 and the rack 310 can be an integral structure, which can eliminate the connection gap that may exist in the split design and ensure that the drive of the rack 310 and the movement of the shield 400 are completely synchronized.
[0102] This application embodiment also provides an atomizer, which may include a body and the opening and closing device 10 described above. The body has a mounting cavity for receiving an object to be heated, and the body has a mounting port communicating with the mounting cavity.
[0103] By using the opening and closing device 10 described above, it is possible to control the opening and closing accuracy of the mounting port, and to help reduce the size of the atomizer, thus contributing to the miniaturization design of the atomizer.
[0104] The various embodiments or implementation methods described in this specification are presented in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.
[0105] It should be noted that phrases such as "in specific implementations," "in some embodiments," "in this embodiment," and "exemplarily" in the specification indicate that the described embodiments may include specific features, structures, or characteristics, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.
[0106] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part by context, the term "one or more" as used in the text can be used to describe any feature, structure, or characteristic of the singular meaning, or a combination of features, structures, or characteristics of the plural meaning. Similarly, at least in part by context, terms such as "a" or "the" can also be understood to convey either singular or plural usage.
[0107] It should be readily understood that the terms “on,” “above,” and “on top of” in this disclosure should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on top of something” but also “on top of something” without an intermediate feature or layer therebetween (i.e., directly on something).
[0108] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.
[0109] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.
Claims
1. An opening and closing device, characterized in that, The opening and closing device is applied to the atomizer and includes: The base has a through hole for connecting the mounting port of the atomizer; The knob assembly is rotatably connected to the base; A transmission component is rotatably connected to the base and is drive-connected to the knob component; A shielding component is connected to the transmission assembly; Driven by the rotation of the knob assembly, the transmission assembly drives the blocking member to reciprocate along the first direction to block or open the through hole.
2. The opening and closing device according to claim 1, characterized in that, The transmission assembly includes a rack, which is disposed on the blocking member; The knob assembly includes: The drive gear meshes with the rack and, through rotation, drives the rack to reciprocate along a first direction. The knob cover is connected to the drive gear, and the knob cover drives the drive gear to rotate.
3. The opening and closing device according to claim 2, characterized in that, The drive gear includes: The main body has a boss, and the knob cover is fastened to the boss; The teeth are located on the outer periphery of the main body and mesh with the rack.
4. The opening and closing device according to claim 3, characterized in that, Also includes: A first rotating shaft is disposed on the base, and the main body has a shaft hole, into which the first rotating shaft is inserted; An elastic buckle is disposed on the outer periphery of the first rotating shaft, and the shaft hole has a locking part that cooperates with the elastic buckle.
5. The opening and closing device according to claim 2, characterized in that, The transmission assembly also includes an acceleration gear set; One side of the acceleration gear set meshes with the drive gear, and the other side of the acceleration gear set meshes with the rack.
6. The opening and closing device according to claim 5, characterized in that, The acceleration gear set includes: A first gear meshes with the drive gear, and the pitch circle of the first gear is smaller than the pitch circle of the drive gear. The second gear is connected to the first gear and meshes with the rack. The pitch circle of the second gear is larger than that of the first gear, and the second gear rotates synchronously with the first gear.
7. The opening and closing device according to claim 6, characterized in that, The first gear and the second gear are an integral structure.
8. The opening and closing device according to claim 2, characterized in that, The base has a limiting groove extending along the first direction, and the shielding member has a slider corresponding to the limiting groove, the slider reciprocating in the limiting groove along the first direction.
9. The opening and closing device according to claim 8, characterized in that, The limiting groove has two grooves, which are spaced apart and parallel to each other along a second direction, and the second direction is perpendicular to the first direction. The slider has two parts, and each slider corresponds to one of the limiting grooves.
10. The opening and closing device according to any one of claims 2-9, characterized in that, The shielding component and the rack are an integral structure.
11. The opening and closing device according to any one of claims 1-9, characterized in that, It also includes the outer casing; The outer shell is fastened to the base and forms a receiving cavity, and the transmission component and the shielding component are both located inside the receiving cavity; The outer casing has a first opening and a second opening, and the first opening is connected to the through hole. The knob assembly is disposed within the second opening and is partially located outside the housing.
12. An atomizer, characterized in that, It includes the body and the opening and closing device as described in any one of claims 1 to 11.