nebulizer

Abstract

The present application relates to a kind of atomizers, including actuating member, guide and effort structure, actuating member is used to receive external force F;Guide is matched with actuating member, guide can be rotated in response to the actuation of actuating member, to make atomizer spray;By setting actuating member and guide, guide can be rotated in response to the actuation of actuating member, to trigger atomizer spray;Effort structure is arranged at the matching place of guide and actuating member, when external force F acts on actuating member, effort structure can decompose external force F into first component f1, first component f1 is used to drive the rotation of actuating member, resistance threshold has been determined by material, structure, surface texture and other factors, only when the external force F applied by user is large enough, enough first component f1 can be generated to drive guide rotation and trigger spray, effectively prevent accidental spray caused by vibration, accidental touch or external extrusion, guarantee the safety and reliability of atomizer use.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a nebulizer. Background Technology

[0002] This invention relates to the field of medical device technology, and in particular to a nebulizer.

[0003] Nebulizers are important drug delivery devices. Existing nebulizers, such as the one disclosed in Chinese patent application CN121177621A, include an actuator, a retainer, a spring, and a guide. During the preparation phase, the nebulizer requires liquid intake and spring pressure application. At the end of the pressure application, the contact plane between the retainer and the guide is perpendicular to the direction of the spring force, forming a lock through the plane contact.

[0004] However, even with the materials, surface textures, lubrication conditions, relative positions, and spring force of the actuator and guide components already determined, the triggering force of the actuator may be relatively small compared to the force required by regular users. When the triggering force is designed to be too small, accidental spraying due to vibration, accidental activation, or external pressure can easily occur, affecting the safety and reliability of the atomizer. Summary of the Invention

[0005] Therefore, it is necessary to provide an atomizer that can effectively prevent accidental spraying caused by vibration, accidental contact or external pressure, and ensure the safety and reliability of the atomizer.

[0006] An atomizer, comprising: Actuator, the actuator being used to receive an external force F: A guide member that cooperates with the actuator and is capable of rotating in response to actuation of the actuator to cause the atomizer to spray. A force-consuming structure is provided at the mating point between the guide and the actuator. When the external force F is applied to the actuator, the force-consuming structure can decompose the external force F into a first component force f1, which is used to drive the rotation of the actuator.

[0007] In one embodiment, the guide is provided with a first mating surface, and the actuator is provided with a second mating surface that can abut against the first mating surface. The first mating surface and the second mating surface form a point-to-surface mating, a line-to-surface mating, or a surface-to-surface mating. The first mating surface and the second mating surface constitute the force-consuming structure.

[0008] In one embodiment, the first component force f1 and the external force F satisfy the following relationship:

[0009] In the section perpendicular to the rotation axis of the guide, α is the angle between the tangent L2 and the normal L1 at the point of contact of the first mating surface, β is the angle between the external force F and the normal L1, and the normal L1 points to the rotation axis of the guide.

[0010] In one embodiment, the α and the included angle β satisfy: .

[0011] In one embodiment, the value of α ranges from 0° to 90°, and / or the value of β ranges from 0° to 90°.

[0012] In one embodiment, the value of β ranges from 0° to 45°.

[0013] In one embodiment, the second mating surface is a line or an inclined plane, and / or the first mating surface is an inclined plane or a curved surface.

[0014] In one embodiment, the first mating surface includes a plurality of inclined segments arranged sequentially, and the inclined segments have different inclination angles; when the second mating surface moves along different inclined segments, the ratio of the first component force f1 to the external force F is different.

[0015] In one embodiment, the first mating surface includes at least a first inclined section and a second inclined section, and the second mating surface mates with the first inclined section and the second inclined section in sequence. The first component force f1 corresponding to the second mating surface mates with the first inclined section is greater than the first component force f1 corresponding to the second inclined section.

[0016] In one embodiment, the guide includes a guide ring and a guide protrusion disposed outside the guide ring, wherein a first mating surface is formed on the guide protrusion; And / or, the actuator is provided with an actuating protrusion, and the actuating protrusion forms the second mating surface.

[0017] In the above solution, by setting an actuator and a guide, the guide can rotate in response to the actuator to trigger the atomizer to spray; by setting a force-reducing structure, the force-reducing structure can decompose the external force F into a first component force f1. The first component force f1 is used to drive the rotation of the actuator. The resistance threshold is determined by factors such as material, structure, and surface texture. Only when the external force F applied by the user is large enough can a sufficient first component force f1 be generated to drive the guide to rotate and trigger the spray, effectively preventing accidental spraying caused by vibration, accidental touch or external pressure, and ensuring the safety and reliability of the atomizer. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a cross-sectional view of the atomizer shown in one embodiment of this application.

[0021] Figure 2 This is a partial structural schematic diagram of an atomizer according to an embodiment of this application.

[0022] Figure 3 This is a schematic diagram of the structure of the retaining member shown in one embodiment of this application.

[0023] Figure 4 This is a schematic diagram of the upper outer shell structure according to an embodiment of this application.

[0024] Figure 5 This is a schematic diagram of the force analysis of the actuator and guide shown in the first embodiment of this application.

[0025] Figure 6 This is a schematic diagram of the force analysis of the actuator and guide shown in the second embodiment of this application.

[0026] Figure 7 This is a schematic diagram of the force analysis of the actuator and guide shown in the third embodiment of this application.

[0027] Figure 8 This is a schematic diagram of the force analysis of the actuator and guide shown in the fourth embodiment of this application.

[0028] Figure 9 This is a cross-sectional schematic diagram of the actuator and guide shown in one embodiment of this application.

[0029] Figure 10 This is a cross-sectional schematic diagram of the actuator and guide shown in another embodiment of this application.

[0030] Figure 11 This is a schematic diagram of the actuator and guide shown in another embodiment of this application.

[0031] Figure 12 This is a schematic diagram of the actuator and guide shown in an embodiment of this application.

[0032] Figure 13 This is a schematic diagram of the actuator structure according to an embodiment of this application.

[0033] Figure 14 for Figure 13 Enlarged view of point A in the middle.

[0034] Explanation of reference numerals in the attached figures: 10. Atomizer; 100. Actuator; 110. Second mating surface; 120. Fifth plane; 130. Actuating protrusion; 200, guide element; 210, second plane; 220, first mating surface; 230, guide ring; 240, guide protrusion; 300. Upper outer shell; 310. Guide rib; 400. Holding component; 410. First plane; 420. Third plane; 500, Spring; 600, Locking element; 610, Fourth plane. Detailed Implementation

[0035] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0036] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0037] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0038] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0039] See Figure 1 , Figure 2 and Figure 3 This application relates to an atomizer 10, including an actuator 100, a guide 200, and a force-reducing structure. The actuator 100 receives an external force F. The guide 200 cooperates with the actuator 100 and is capable of rotating in response to actuation of the actuator 100, thereby causing the atomizer 10 to spray. The force-reducing structure is located at the mating point between the guide 200 and the actuator 100, and the actuator 100 can drive the guide 200 to rotate through the force-reducing structure.

[0040] See Figure 1 , Figure 2 and Figure 3 The atomizer 10 also includes an upper housing 300, a retainer 400, a spring 500, and a locking element 600. One end of the spring 500 abuts against the retainer 400, and the other end abuts against the upper housing 300. A guide 200 is partially rotatably mounted within the upper housing 300 and can rotate about its axis. The guide 200 guides the movement of the retainer 400, which moves to achieve liquid intake and atomization by the atomizer 10. When the retainer 400 moves in a first direction, the atomizer 10 intakes liquid. When the retainer 400 moves in a second direction opposite to the first direction, the atomizer 10 atomizes liquid.

[0041] See Figure 1 , Figure 2 , Figure 3 , Figure 11 and Figure 12The retaining member 400 has a first flat surface 410, and the guide member 200 has a second flat surface 210. When the liquid absorption is complete, the spring 500 is in a compressed state, and the first flat surface 410 and the second flat surface 210 are in contact with each other, forming abutment points. At this time, the guide member 200 overcomes the elastic force of the spring 500 through this abutment engagement, preventing the retaining member 400 from accidentally resetting, thereby preventing the atomizer 10 from leaking liquid or accidentally spraying when not in use.

[0042] When the user applies an external force F to the actuator 100, the actuator 100 drives the guide 200 to rotate via a force-reducing structure. When the guide 200 rotates to a predetermined position, the first plane 410 and the second plane 210 are misaligned, and the locking state of the retainer 400 is released. Subsequently, the elastic potential energy of the spring 500 is rapidly released, pushing the retainer 400 to reset in the second direction, thereby triggering the spray.

[0043] Specifically, the locking element 600 is movably disposed on the upper housing 300, the retaining member 400 is provided with a third plane 420, and the locking element 600 is provided with a fourth plane 610. The third plane 420 can abut against the fourth plane 610 to form a push joint, so that the locking element 600 is reset with the retaining member 400.

[0044] During the reset process of the retainer 400, the retainer 400 pushes the fourth plane 610 of the locking element 600 through the third plane 420, so that the locking element 600 resets along with the retainer 400.

[0045] After spraying is complete, the guide 200 returns to its initial position. At this time, the first plane 410 and the second plane 210 are separated, and the spring 500 is released. When the next liquid aspiration is needed, the retainer 400 moves along the first direction, and the spring 500 is compressed again. When liquid aspiration is complete, the first plane 410 on the retainer 400 and the second plane 210 on the guide 200 re-adhere to each other, becoming abutting parts, and the spring 500 is in a compressed, energy-storing state, ready for the next spray.

[0046] When an external force F is applied to the actuator 100, the force-reducing structure can decompose the external force F into a first component force f1, which is used to drive the rotation of the actuator 100.

[0047] By setting a force-consuming structure, the force-consuming structure can decompose the external force F into a first component force f1. The first component force f1 is used to drive the rotation of the actuator 100. The resistance threshold is determined by factors such as material, structure, and surface texture. Only when the external force F applied by the user is large enough can a sufficient first component force f1 be generated to drive the guide 200 to rotate and trigger the spray. This effectively prevents accidental spraying caused by vibration, accidental touch or external pressure, and ensures the safety and reliability of the atomizer 10.

[0048] See Figure 9 , Figure 10 , Figure 11 and Figure 12 According to some embodiments of this application, optionally, the guide 200 is provided with a first mating surface 220, and the actuator 100 is provided with a second mating surface 110 that can abut against the first mating surface 220. The first mating surface 220 and the second mating surface 110 form a point-to-surface fit, a line-to-surface fit, or a surface-to-surface fit. The first mating surface 220 and the second mating surface 110 constitute a force-reducing structure. Specifically, the second mating surface 110 is a line or an inclined surface. The first mating surface 220 is an inclined surface or a curved surface.

[0049] Specifically, the first mating surface 220 is a contact portion protruding from the guide 200 toward the actuator 100, and the second mating surface 110 is a mating portion formed on the actuator 100 toward the guide 200. When the user applies an external force F to the actuator 100, the second mating surface 110 abuts against the first mating surface 220, forming a line-to-surface fit or a surface-to-surface fit between them.

[0050] See Figure 9 , Figure 11 and Figure 12 In the embodiment of the line-surface mating, the second mating surface 110 is a linear structure, which is an edge or a protruding edge. The first mating surface 220 is an inclined surface or a curved surface. Specifically, the curved surface is preferably an arc surface, such as a circular arc surface. For example, the curved surface is an outwardly convex circular arc surface.

[0051] It should be noted that: an edge refers to the edge line formed by the intersection of two adjacent surfaces on the actuator 100, such as the intersection line of a slope and a side surface, or the edge line of two intersecting planes. An edge can be a sharp edge, a rounded edge, or a chamfered edge, as long as it can form line contact. A ridge refers to a slender structure on the actuator 100 that protrudes towards the guide 200, with its top being linear or arc-shaped, used to form line contact with the first mating surface 220.

[0052] See Figure 10 In the surface-to-surface mating embodiment, the second mating surface 110 is an inclined surface. The first mating surface 220 is an inclined surface or a curved surface. Specifically, the curved surface is preferably an arc surface, such as a circular arc surface. For example, the curved surface is an outwardly convex circular arc surface.

[0053] See Figure 13 and Figure 14 In the point-to-surface mating embodiment, the second mating surface 110 is a point-like structure. The first mating surface 220 is an inclined surface or a curved surface. Specifically, the curved surface is preferably an arc surface, such as a circular arc surface. For example, the curved surface is an outwardly convex circular arc surface.

[0054] It should be noted that: point structures can be spherical surfaces, hemispheres, the tip of a cone, or the end of a cylinder, as long as point contact can be formed.

[0055] See Figure 5 , Figure 6 , Figure 7 and Figure 8 According to some embodiments of this application, optionally, the first component force f1 and the external force F satisfy the following relationship:

[0056] In the section perpendicular to the rotation axis of the guide 200, which can also be considered as a top view of the actuator 100, the force-consuming structure, and the guide 200, α is the angle between the tangent L2 of the first mating surface 220 at its contact point and the normal L1, and β is the angle between the external force F and the normal L1, with the normal L1 pointing towards the rotation axis of the guide 200. The first component force f1 is the component force along the driving rotation direction to drive the guide 200 to rotate and overcome the resistance threshold.

[0057] It should be noted that: a reference circle e is drawn with the axis of the guide 200 as the center and the distance from the contact point to the center as the radius. The normal L1 is along the radial direction of the reference circle e at that point, pointing towards the center of the circle. That is, it points towards the rotation axis of the guide 200.

[0058] See Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 13 Furthermore, it should be noted that the actuator 100 is partially rotatably mounted on the upper housing 300 of the atomizer 10. The side wall of the actuator 100 has a fifth plane 120, and the inner side of the upper housing 300 has a guide rib 310. The fifth plane 120 and the side plane of the guide rib 310 are fitted and slidably engaged, forming a guide joint. This guide joint restricts the actuator 100 to reciprocate only in a predetermined direction and limits the angle β between the direction of the external force F and the normal L1. That is, the size of angle β is determined by the relative position of the guide joint and the guide member 200.

[0059] Specifically, the β angle reflects the degree of offset of the motion direction line of the actuator 100 relative to the normal L1 at the contact point with the guide 200. For example, the smaller the β angle, the closer the motion direction line of the actuator 100 is to the normal L1 direction, and the more symmetrical and regular the relative arrangement of the actuator and the guide is; the larger the β angle, the more the motion direction line of the actuator 100 is biased to one side, and the overall symmetry is reduced.

[0060] See Figure 5 , Figure 6 , Figure 7 and Figure 8According to some embodiments of this application, optionally, when an external force F is applied to the actuator 100, the fifth plane 120 of the actuator 100 is in contact with the side plane of the guide rib 310.

[0061] According to the parallelogram law of forces, the external force F is decomposed into a third component force f3 and a fourth component force f4. Among them, the third component force f3 is perpendicular to the tangent line L2' at the contact point between the fifth plane 120 and the side plane of the guide rib 310, and the tangent line L2' is parallel to the tangent line L2. The fourth component force f4 is the compressive force of the actuator 100 on the guide rib 310.

[0062] The third component force f3 serves as an effective driving force, continuing to act on the force-intensive structure between the actuator 100 and the guide 200. At the contact point between the second mating surface 110 and the first mating surface 220, according to the parallelogram law of forces, the third component force f3 is further decomposed into two mutually perpendicular components: a first component force f1 and a second component force f2. The second component force f2 points in the direction of the normal L1. The first component force f1, along the tangent L2 at the contact point, drives the guide 200 to rotate.

[0063] The third component force f3 and the external force F satisfy the following relationship:

[0064] Based on the relationship between the first component force f1 and the external force F, and the third component force f3 and the external force F, we know that f1 = f3 × cos(α). From these relationships, we can see that when the angle α is small, cos(α) is large, and f1 is relatively large, meaning the effective component driving the rotation is large, and the user only needs a relatively small force to trigger the spray. When the angle α is large, cos(α) is small, and f1 is relatively small, meaning the effective component driving the rotation is small, and the user needs to apply a larger force to trigger the spray. Therefore, by adjusting the angle α, the proportional relationship between f1 and f3 can be precisely controlled, thereby setting the required driving force to overcome inherent resistance.

[0065] See Figure 5 , Figure 6 , Figure 7 and Figure 8 According to some embodiments of this application, optionally, based on the relationship between the first component force f1 and the external force F, it can be deduced that when cos(α) < sin(α+β), the first component force f1 < the external force F. At this time, the force-consuming structure produces a "force-shrinking" effect.

[0066] Based on cos(α) < sin(α+β), we can deduce that α and β satisfy the following relationship:

[0067] By setting the relationship between α and β as The force-intensive structure causes the first component of the actual driving force f of the actuator 100 on the guide 200 to be less than the external force F. Therefore, the first component f1 needs to be large enough to drive the guide 200 to rotate. The proportion of the applied external force F distributed to f1 determines whether the guide 200 can be pushed. When the initial force f1 is small, the guide 200 cannot rotate, the atomizer 10 remains in standby mode, and the spray will not be triggered, effectively preventing accidental spraying caused by vibration, accidental touch, or external pressure. Only when the applied external force F is distributed sufficiently large to f1 can the guide 200 overcome the resistance threshold and begin to rotate, thereby triggering the spray. Therefore, the user needs to apply an external force F exceeding the resistance threshold to trigger the spray.

[0068] See Figure 5 , Figure 6 , Figure 7 and Figure 8 According to some embodiments of this application, optionally, the value range of α is 0° < α ≤ 90°, and / or the value range of β is 0° < β ≤ 90°. It should be noted that this application does not specifically limit the value range of α and β, and they can be set according to actual usage requirements.

[0069] It should be noted that: in Under the premise that the first component force f1 is equal to the external force F, the ratio f1 / F has the following trend: When β is fixed, f1(α) is strictly monotonically decreasing, meaning the larger α is, the smaller f1 is. When α is fixed, f1(β) is strictly monotonically decreasing, meaning the larger β is, the smaller f1 is. For example, see [reference needed]. Figure 8 When β = 90°, the range of α is: 0° < α ≤ 90°, and the actuator 100 is biased to one side.

[0070] See Figure 5 , Figure 6 , Figure 7 and Figure 8 According to some embodiments of this application, optionally, the value of β is in the range of 0° to 45°.

[0071] For example, see Figure 6 When β = 0°, the external force F is directed towards the normal L1, and the value of α ranges from 45° to 90°. Preferably, the value of α ranges from 50° to 65°.

[0072] For example, see Figure 5The value of β ranges from 10°, and the value of α ranges from 50° to 65°. At this point, 2α + β = 110°–130° > 90°, and f1 = (0.53–0.74)F, achieving a force-shrinking effect. When the value of β is within the range of 10°, the actuator 100 and the guide 200 are roughly aligned in the middle, resulting in a neat and aesthetically pleasing layout.

[0073] For example, see Figure 7 When β = 45°, the value of α ranges from 22.5° to 90°.

[0074] See Figure 11 According to some embodiments of this application, the first mating surface 220 includes a plurality of sequentially arranged inclined segments with different inclination angles. When the second mating surface 110 moves along different inclined segments, the ratio of the first component force f1 to the external force F is different.

[0075] As can be seen from the above, according to the relationship between the first component force f1 and the external force F, the ratio of f1 / F is determined by α and β. When β is fixed, f1 / F changes with α. By setting multiple inclined plane segments with different inclination angles, the force-intensive structure can generate different f1 / F ratios at different stages of its stroke, thereby achieving segmented resistance characteristics.

[0076] Specifically, the first mating surface 220 includes at least a first inclined section and a second inclined section, and the second mating surface 110 mates with the first inclined section and the second inclined section in sequence. The first component force f1 corresponding to the second mating surface 110 mates with the first inclined section is less than the first component force f1 corresponding to the second inclined section.

[0077] When the user begins to apply an external force F to the actuator 100, the second mating surface 110 contacts the first inclined section. At this time, the ratio of f1 / F is relatively small, requiring a larger force F to overcome the resistance threshold, which can prevent accidental spraying due to slight mis-touch. As the user continues to apply a larger external force F, after overcoming the resistance threshold of the first inclined section, the second mating surface 110 enters the second inclined section. At this point, the ratio of f1 / F increases, and the user only needs to apply a smaller force F to complete the spraying.

[0078] By setting a first inclined section and a second inclined section, and ensuring that the first component force f1 corresponding to the second mating surface 110 when mating with the first inclined section is less than the first component force f1 corresponding to the second inclined section, a larger external force F is required to overcome the resistance in the initial stage, providing effective protection against accidental contact. In the later stage, only a smaller external force F is needed to overcome the resistance, ensuring ease of operation and achieving a good balance between safety and convenience.

[0079] See Figure 11 , Figure 12 , Figure 13 and Figure 14 According to some embodiments of this application, the guide member 200 includes a guide ring 230 and a guide protrusion 240 disposed on the outer side of the guide ring 230, and a first mating surface 220 is formed on the guide protrusion 240. The actuator 100 is provided with an actuating protrusion 130, and the actuating protrusion 130 forms a second mating surface 110.

[0080] The guide ring 230 is rotatably mounted on the upper housing 300 of the atomizer 10 about its axis, and the guide protrusion 240 extends radially outward. The actuating protrusion 130 protrudes toward the guide member 200, and the second mating surface 110 on the actuating protrusion 130 is used to form a line-surface fit or a surface-surface fit with the first mating surface 220. When the user applies an external force F to the actuator 100, the second mating surface 110 on the actuating protrusion 130 abuts against the first mating surface 220 on the guide protrusion 240, forming a force-reducing structure.

[0081] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0082] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An atomizer (10), characterized in that, include: Actuator (100), said actuator (100) is used to receive external force F: A guide (200) that cooperates with the actuator (100) and is capable of rotating in response to actuation of the actuator (100) to cause the atomizer (10) to spray. The force-consuming structure is located at the mating point between the guide (200) and the actuator (100). When the external force F acts on the actuator (100), the force-consuming structure can decompose the external force F into a first component force f1, which is used to drive the rotation of the actuator (100).

2. The atomizer (10) according to claim 1, characterized in that, The guide (200) is provided with a first mating surface (220), and the actuator (100) is provided with a second mating surface (110) that can abut against the first mating surface (220). The first mating surface (220) and the second mating surface (110) form a point-to-surface fit, a line-to-surface fit, or a surface-to-surface fit. The first mating surface (220) and the second mating surface (110) constitute the force-consuming structure.

3. The atomizer (10) according to claim 2, characterized in that, The first component force f1 and the external force F satisfy the following relationship: ； In the section perpendicular to the rotation axis of the guide (200), α is the angle between the tangent L2 and the normal L1 at the point of contact of the first mating surface (220), β is the angle between the external force F and the normal L1, and the normal L1 points to the rotation axis of the guide (200).

4. The atomizer (10) according to claim 3, characterized in that, The included angles α and β satisfy: .

5. The atomizer (10) according to claim 4, characterized in that, The value range of α is 0° < α ≤ 90°, and / or the value range of β is 0° < β ≤ 90°.

6. The atomizer (10) according to claim 4, characterized in that, The value of β ranges from 0° to 45°.

7. The atomizer (10) according to claim 2, characterized in that, The second mating surface (110) is a line or an inclined plane, and / or the first mating surface (220) is an inclined plane or a curved surface.

8. The atomizer (10) according to claim 7, characterized in that, The first mating surface (220) includes a plurality of inclined segments arranged in sequence, and the inclination angles of the plurality of inclined segments are different; when the second mating surface (110) moves along different inclined segments, the ratio of the first component force f1 to the external force F is different.

9. The atomizer (10) according to claim 7, characterized in that, The first mating surface (220) includes at least a first inclined section and a second inclined section. The second mating surface (110) mates with the first inclined section and the second inclined section in sequence. When the second mating surface (110) mates with the first inclined section, the first component force f1 is greater than the first component force f1 when it mates with the second inclined section.

10. The atomizer (10) according to claim 2, characterized in that, The guide (200) includes a guide ring (230) and a guide protrusion (240) disposed on the outside of the guide ring (230), and a first mating surface (220) is formed on the guide protrusion (240); And / or, the actuator (100) is provided with an actuating protrusion (130), and the actuating protrusion (130) forms the second mating surface (110).

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