Atomizing device

Abstract

The present application relates to an atomizing device, which comprises a container, a power mechanism including a piston and a piston rod assembly, the piston being movably installed in the container, the piston rod assembly including at least a first driving rod and a second driving rod, when the first driving rod is subjected to a first motion, the first driving rod is displaced in a first direction relative to the second driving rod to increase the total length of the piston rod assembly, and the piston is not displaced in its axial direction, when the first driving rod is subjected to a second motion, the piston rod assembly is synchronously displaced in a second direction as a whole, and the second driving rod drives the piston to be displaced in the second direction to make the piston go deep into the container to realize liquid dispensing. The atomizing device of the present application is simple in structure, small in size, convenient to carry, and capable of reducing the risk of liquid contamination in the container, and the pressure of liquid output is relatively small, and for drugs with relatively complex physicochemical properties, the structure and biological activity of the drugs can be kept intact during delivery.

Description

Technical Field

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

[0002] Nanobodies, with their small molecular weight, stable structure, and strong tolerability, are suitable for developing various drug delivery routes, including intravenous injection, subcutaneous administration, oral administration, and nebulized inhalation. Inhalation of nanobodies can avoid the first-pass effect of oral administration, demonstrating good efficacy in the treatment of lung diseases and showing great promise for applications in the treatment of respiratory and pulmonary diseases.

[0003] When administering medication using existing nebulizers (such as air compressors or vibratory nebulizers), the liquid medication must first be added to the nebulizer. The nebulizer then transforms the liquid medication into a fine mist or aerosol particles of appropriate size. The particle size distribution after nebulization directly affects the subsequent inhalation and therapeutic effect. This nebulization inhalation method has the following disadvantages:

[0004] (1) Air compression or vibration nebulizers are large in size and complex in structure. For small doses of medication, the medication is wasted, which affects the treatment effect.

[0005] (2) The physicochemical properties of nanobody drugs are relatively complex. When they are delivered through existing air compression or vibration nebulization devices, the drug must be able to withstand the high pressure and force output by the nebulization device and maintain the integrity of the drug structure and bioactivity during delivery. Summary of the Invention

[0006] Based on the aforementioned deficiencies in the prior art, the purpose of this invention is to provide an atomizing device that is simple and compact in structure, easy to carry, and allows the liquid to be stored in the storage chamber beforehand, eliminating the need to manually add the liquid to the atomizing device, simplifying the operation steps, reducing the risk of contamination of the liquid in the container, and providing power through a power mechanism, resulting in lower pressure on the liquid output. For drugs with relatively complex physicochemical properties, it can maintain the integrity of the drug structure and biological activity during delivery.

[0007] Therefore, the present invention provides the following technical solution.

[0008] This invention provides an atomizing device, the atomizing device comprising:

[0009] A container used to store liquids;

[0010] A power mechanism including a piston and a piston rod assembly, the piston being movably mounted in the container, the piston rod assembly including at least a first drive rod and a second drive rod;

[0011] When the first drive rod undergoes a first movement, the first drive rod is displaced relative to the second drive rod in a first direction, thereby increasing the total length of the piston rod assembly, while the piston does not displace in its axial direction;

[0012] When the first drive rod undergoes a second movement, the piston rod assembly as a whole synchronously displaces in a second direction, and the second drive rod drives the piston to displace in a second direction, so that the piston penetrates deeper into the container to achieve liquid distribution; wherein, the first direction is opposite to the second direction.

[0013] Optionally, the atomizing device further includes an operating component connected to the first drive rod;

[0014] When the operating component undergoes a first movement under external force, it drives the first drive rod to undergo a first movement; when the operating component undergoes a second movement under external force, it drives the drive rod to undergo a second movement.

[0015] Optionally, the first movement is configured to involve a first rotation while moving along a first direction; the second movement is configured to involve a second rotation while moving along a second direction; wherein the first rotation is opposite to the second rotation.

[0016] Optionally, when the first drive rod undergoes a first movement, the second drive rod undergoes a first rotation and does not move along the first direction;

[0017] When the first drive rod undergoes a second movement, the piston rod assembly as a whole undergoes a second movement, and the second drive rod drives the piston to undergo a second movement.

[0018] Optionally, the piston rod assembly further includes a third drive rod, wherein the first drive rod, the third drive rod, and the second drive rod are sequentially coupled.

[0019] When the first drive rod does not reach its limit position and a first movement occurs, the first drive rod is displaced relative to the third drive rod in a first direction, and the third drive rod causes the second drive rod to rotate in a first direction without moving along the first direction.

[0020] When the first drive rod is displaced relative to the third drive rod in a first direction until the first drive rod is at its limit position, the first drive rod can no longer be displaced relative to the third drive rod in the first direction. During the process of the first drive rod undergoing the first movement again, the third drive rod drives the first drive rod to be displaced relative to the second drive rod in the first direction, so as to increase the total length of the piston rod assembly.

[0021] When the first drive rod undergoes a second movement, the first drive rod, the third drive rod, and the second drive rod do not move relative to each other.

[0022] Optionally, when the third drive rod is displaced relative to the second drive rod in the first direction until the third drive rod is at its limit position, the third drive rod can no longer be displaced relative to the second drive rod in the first direction, the total length of the piston rod assembly reaches its maximum value, and the container completes its last use.

[0023] Optionally, the first drive rod is provided with a first sawtooth thread, the second drive rod is provided with a second sawtooth thread, and the third drive rod is provided with a third sawtooth thread and a fourth sawtooth thread;

[0024] The first sawtooth thread and the third sawtooth thread are threadedly engaged, and the second sawtooth thread and the fourth sawtooth thread are threadedly engaged.

[0025] Optionally, the third drive rod is a hollow structure and is sleeved on the outer periphery of the first drive rod; the second drive rod is a hollow structure and is sleeved on the outer periphery of the third drive rod.

[0026] The third sawtooth thread is provided on the circumferential inner wall of the third drive rod, and the fourth sawtooth thread is provided on the circumferential outer wall of the third drive rod.

[0027] Optionally, the atomizing device further includes an operating component connected to the first drive rod, the operating component being used to drive the first drive rod to perform a first movement or a second movement;

[0028] The operating component is provided with a first engaging groove and an annular groove at one end facing the piston rod assembly, and the annular groove is arranged around the first engaging groove;

[0029] The first end of the first drive rod, which is away from the piston, extends out to the third drive rod and engages in the first engagement groove;

[0030] Before the atomizing device is used for the first time, the ends of the second drive rod and the third drive rod that are away from the piston are inserted into the annular groove.

[0031] Optionally, the power mechanism further includes a meshing pawl and a ratchet; the pawl is eccentrically located at one end of the second drive rod, and the ratchet is coaxially connected to the piston;

[0032] When the first drive rod undergoes a first movement, the pawl rotates independently of the ratchet.

[0033] When the first drive rod moves in the second direction, the second drive rod pushes the piston to move in the second direction. At the same time, the pawl pushes the ratchet to drive the piston to rotate in the second direction.

[0034] Optionally, the second drive rod has an eccentric shaft at one end facing the piston, and the ratchet is mounted on the eccentric shaft;

[0035] And / or, the ratchet engages with the piston;

[0036] And / or, the piston has a groove at one end facing the second drive rod, the groove has at least two second engaging grooves, the ratchet has at least two engaging protrusions on its circumferential sidewall, the ratchet is embedded in the groove, and the second engaging grooves engage with the engaging protrusions one by one.

[0037] Optionally, the atomizing device further includes an operating component connected to the first drive rod, the operating component being used to drive the first drive rod to perform a first movement or a second movement;

[0038] The atomizing device also includes a housing, in which the container and the power mechanism are both disposed. The operating component is movably inserted into the distal port of the housing, and the operating component and the distal port are sealed together.

[0039] Optionally, the atomizing device further includes a reset sleeve and a reset spring, the container is at least partially located in the reset sleeve, the two ends of the reset spring are respectively connected to the reset sleeve and the outer shell, and the reset sleeve is connected to the operating component;

[0040] When the operating component undergoes a first movement under external force, the reset sleeve moves synchronously with the operating component, and the reset spring is stretched.

[0041] When the operating component undergoes a second movement, the reset spring retracts and applies a pulling force along the second direction to the reset sleeve, and the reset sleeve pulls the operating component along the second direction.

[0042] Optionally, the circumferential inner wall of the reset sleeve abuts against the circumferential outer wall of the container;

[0043] And / or, the operating component is provided with a driving tooth, the reset sleeve is provided with a driven tooth, the driving tooth and the driven tooth mesh and the two are tightly engaged;

[0044] And / or, the operating component is provided with a cap, the inner wall of the housing is provided with a first abutting surface, and the distal end of the housing is provided with a second abutting surface;

[0045] When the operating component undergoes a first movement, the operating component stops moving along the first direction when the reset sleeve moves to abut against the first contact surface.

[0046] When the operating component undergoes a second movement, when the operating component moves to the point where the cap abuts against the second contact surface, the operating component stops moving in the second direction.

[0047] Optionally, the atomizing device further includes an atomizing chip disposed in the outlet end of the container; when the atomizing device dispenses liquid, the liquid in the container is processed by the atomizing chip to form atomized fine particles and then escapes.

[0048] And / or, the atomizing device further includes a housing, the container being disposed within the housing; the outlet end of the container is provided with an annular protrusion, and the proximal end of the housing is provided with an annular groove, the annular protrusion being engaged with the annular groove.

[0049] Optionally, the atomizing device further includes a mouthpiece assembly, which includes:

[0050] The nozzle housing has a connection port, a suction port and an air inlet port, wherein the connection port is connected to the outlet end of the container;

[0051] A one-way valve is located in the air intake port.

[0052] Optionally, the method further includes an end cap, which is disposed on the air intake port;

[0053] The end cap is provided with multiple air inlets, and the one-way valve is installed on the side of the end cap facing the nozzle housing and covers the multiple air inlets.

[0054] The present invention has the following technical effects:

[0055] This invention provides an atomizing device. By configuring a piston rod assembly, which includes at least a first drive rod and a second drive rod, the piston rod assembly cooperates with a piston, allowing the atomizing device to have two separate states: a state to be atomized and a state to be atomized. Each time the first drive rod makes a first movement to put the atomizing device into the state to be atomized, the total length of the piston rod assembly increases. When the first drive rod makes a second movement, the current total length of the piston rod assembly can smoothly push the piston to move in a second direction to achieve atomization. Furthermore, the length of a single stroke of the piston is equal to the amount of one increase in the total length of the piston rod assembly, thereby enabling the atomizing device to atomize a specific amount of material.

[0056] Furthermore, with each use of the atomizing device, the total length of the piston rod assembly increases progressively. However, since the piston also delves deeper into the container with each use, the overall length of the atomizing device remains constant. This solution, by optimizing the structure of the piston rod assembly, helps to shorten the initial total length of the piston rod assembly, thereby shortening the overall length of the atomizing device and facilitating its miniaturization.

[0057] Furthermore, existing technologies using air compression or vibration nebulizers require manual addition of liquid to the device. In contrast, this solution pre-stores the drug solution in a storage chamber, eliminating the need for manual addition and simplifying the process. This also prevents the introduction of new air into the container, reducing the risk of contamination. Moreover, the nebulizer in this solution is simple, compact, and portable, minimizing liquid waste and ensuring more accurate dosing for small-dose nebulization. Additionally, the nebulizer utilizes a power mechanism for atomization, resulting in lower pressure on the liquid output. For drugs with complex physicochemical properties (such as nanobody drugs), this allows for the preservation of the drug's structure and biological activity during delivery. Attached Figure Description

[0058] Figure 1 This is a partial exploded view of the atomizing device of the present invention;

[0059] Figure 2 This is a three-dimensional structural schematic diagram of the first drive rod of the present invention;

[0060] Figure 3 This is a three-dimensional structural diagram of the third drive rod of the present invention;

[0061] Figure 4 This is a three-dimensional structural schematic diagram of the second drive rod of the present invention;

[0062] Figure 5 This is a three-dimensional structural diagram of the ratchet of the present invention;

[0063] Figure 6 This is a three-dimensional structural diagram of the piston of the present invention;

[0064] Figure 7 This is a three-dimensional structural diagram of the power mechanism of the atomizing device of the present invention before its first use;

[0065] Figure 8 This is a three-dimensional structural diagram of the operating component of the present invention;

[0066] Figure 9 This is a partial structural cross-sectional view of the atomizing device of the present invention before its first use;

[0067] Figure 10 for Figure 9 Enlarged view of point A in the middle;

[0068] Figure 11 This is a partial structural side view of the atomizing device of the present invention in its initial state or when atomization is completed;

[0069] Figure 12 A partial cross-sectional view of the atomizing device of the present invention during the first stage of atomization.

[0070] Figure 13 This is a partial side view of the atomizing device of the present invention when it has completed atomization.

[0071] Figure 14 A partial cross-sectional view of the atomizing device of the present invention during atomization;

[0072] Figure 15 A partial cross-sectional view of the atomizing device of the present invention during the second stage of atomization;

[0073] Figure 16 This is a partial structural cross-sectional view of the atomizing device of the present invention when it is in a state of being out of use.

[0074] Figure 17 This is a three-dimensional structural diagram of the suction nozzle assembly of the present invention;

[0075] Figure 18 This is a three-dimensional structural diagram of the end cap of the present invention;

[0076] Figure 19 This is a three-dimensional structural diagram of the one-way valve of the present invention.

[0077] Explanation of reference numerals in the attached figures

[0078] 100. Atomizing device;

[0079] 1. Container; 11. Annular protrusion; 12. Storage chamber;

[0080] 2. Power mechanism;

[0081] 21. Piston; 211. Groove; 2111. Second snap-fit ​​groove; 212. Sealing ring; 213. Limiting post;

[0082] 22. Piston rod assembly; 221. First drive rod; 2211. First sawtooth thread; 2212. First end; 222. Second drive rod; 2221. Second sawtooth thread; 2222. Eccentric shaft; 223. Third drive rod; 2231. Third sawtooth thread; 2232. Fourth sawtooth thread;

[0083] 23. Claws;

[0084] 24. Ratchet; 241. Snap-fit ​​protrusion;

[0085] 3. Operating components; 31. First locking groove; 32. Annular groove; 33. Active tooth; 34. Cap; 341. Cap end face; 342. Concave-convex structure; 35. Column;

[0086] 4. Outer shell; 41. Remote port; 42. First abutment surface; 43. Second abutment surface; 44. Annular post;

[0087] 5. Reset sleeve; 51. Driven tooth; 52. Sleeve end face; 53. Cylinder body; 531. Connecting post; 54. First annular structure; 55. Second annular structure;

[0088] 6. Return spring;

[0089] 7. Atomizing chip; 71. Flow channel;

[0090] 8. Nozzle assembly; 81. Nozzle housing; 811. Connection port; 812. Suction port; 8121. Bite-limiting protrusion; 813. Air inlet port; 82. One-way valve; 83. End cap; 831. Air inlet hole; 832. Mounting post. Detailed Implementation

[0091] To make the technical solution and beneficial effects of the present invention more apparent and understandable, a detailed description is provided below by listing specific embodiments. Unless otherwise defined, the technical and scientific terms used herein have the same meanings as those in the technical field to which this application pertains.

[0092] In the description of this invention, unless otherwise expressly defined, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "height," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of this invention and do not indicate that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. That is, they should not be construed as limiting this invention.

[0093] In this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating the relative importance of the indicated features or the number of indicated technical features. Therefore, a feature specified as "first" or "second" can explicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two; "several" means at least one; unless otherwise expressly defined.

[0094] In this invention, unless otherwise explicitly defined, the terms "installation," "connection," "linking," "fixing," and "setting," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral molding; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can also refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0095] In this invention, unless otherwise explicitly defined, the terms "above," "on top of," "over," "above," "below," "below," "below," or "below" for "first feature above second feature" can refer to the first and second features being in direct contact, or to the first and second features being in indirect contact through an intermediate medium. Furthermore, "above," "over," and "below" for "first feature above second feature" can mean the first feature is directly above or diagonally above the second feature, or simply indicates that the horizontal height of the first feature is higher than the horizontal height of the second feature. Similarly, "below," "below," and "below" for "first feature below second feature" can mean the first feature is directly below or diagonally below the second feature, or simply indicates that the horizontal height of the first feature is lower than the horizontal height of the second feature.

[0096] In this invention, "first direction a" and "second direction b" refer to... Figure 9 , Figure 12 , Figures 14 to 16 The markings in the text shall prevail.

[0097] The following is based on Figures 1 to 19 The atomizing device of the present invention will be described in detail.

[0098] In this embodiment, such as Figure 1 , Figure 6 , Figure 7 and Figure 9 As shown, the atomizing device 100 includes a container 1 and a power mechanism 2. The container 1 is used to store liquid (such as nanobody drugs). The power mechanism 2 includes a piston 21 and a piston rod assembly 22. The piston 21 is movably installed in the container 1. The piston 21 is provided with a sealing ring 212. The sealing ring 212 is sealed to the circumferential inner wall of the container 1. A storage chamber 12 is formed between the piston 21 and the inner wall of the container 1. The liquid is stored in the storage chamber 12. The piston rod assembly 22 includes at least a first drive rod 221 and a second drive rod 222.

[0099] like Figure 9 As shown, before the first use, the piston rod assembly 22 of the atomizing device 100 has an initial total length. When using the atomizing device 100, it undergoes two steps: atomization and atomization. Specifically, the atomizing device 100 includes the following process:

[0100] (1) First, as Figure 12 As shown, an external force causes the first drive rod 221 to undergo a first movement. At this time, the first drive rod 221 will displace relative to the second drive rod 222 in the first direction a, increasing the total length of the piston rod assembly 22. The piston 21 does not displace in its axial direction; that is, the size of the storage chamber 12 remains unchanged. When the first drive rod 221 completes its first movement, as... Figure 12 and Figure 13 As shown, the atomizing device 100 is in the waiting-to-atomize state and has not yet started atomizing.

[0101] (2) Then, as Figure 14 As shown, when the external force causes the first drive rod 221 to move in the second direction, the piston rod assembly 22 moves synchronously in the second direction b. This allows the second drive rod 222 to drive the piston 21 to move in the second direction b, causing the piston 21 to penetrate deeper into the container 1. The space in the storage chamber 12 gradually decreases, and the liquid in the storage chamber 12 is compressed, causing the atomizing device 100 to atomize. When the first drive rod 221 completes its second movement, the atomizing device 100 completes atomization. During atomization, the piston 21 penetrates further into the container 1. This requires the piston rod assembly 22 to be longer for each subsequent use of the atomizing device 100, ensuring smooth continued movement of the piston 21 along the second direction b. In this design, the total length of the piston rod assembly 22 increases with each atomization process, enabling smooth continued movement of the piston 21 along the second direction b during the current use. That is, with each use of the atomizing device 100, the total length of the piston rod assembly 22 will increase successively, and since the piston 21 also penetrates deeper into the container 1 successively, it can be ensured that the overall length of the atomizing device 100 will not increase.

[0102] Wherein, the first direction a and the second direction b are opposite in direction. Specifically, the first direction a is the direction along the axial direction of the piston 21 and toward the far end of the container 1, and the second direction b is the direction along the axial direction of the piston 21 and toward the near end of the atomizing device 100.

[0103] It should be understood that in this article, "proximal end" refers to the end of the atomizing device 100 that is close to the target object and receives atomization (such as the mouth or nose of a human body) when in use, and "distal end" refers to the end of the atomizing device 100 that is far away from the target object and receives atomization when in use.

[0104] The above technical solution, by configuring the piston rod assembly 22, which includes at least a first drive rod 221 and a second drive rod 222, allows the piston rod assembly 22 to cooperate with the piston 21 when the atomizing device 100 is used, so that the atomizing device 100 has two separate states: a state to be atomized and a state to be atomized. When the first drive rod 221 makes a first movement to put the atomizing device 100 into the state to be atomized, the piston rod assembly 22 will increase in total length once. When the first drive rod 221 makes a second movement, the current total length of the piston rod assembly 22 can smoothly push the piston 21 to move along the second direction b to achieve atomization. Furthermore, the single stroke length of the piston 21 is equal to the single increase in the total length of the piston rod assembly 22, thereby enabling the atomizing device 100 to atomize quantitatively.

[0105] Furthermore, with each use of the atomizing device 100, the total length of the piston rod assembly 22 increases progressively. Simultaneously, since the piston 21 also gradually penetrates into the container 1, it ensures that the overall length of the atomizing device 100 does not increase. This solution, by optimizing the structure of the piston rod assembly 22, helps to shorten the initial total length of the piston rod assembly 22, thereby shortening the overall length of the atomizing device 100 and facilitating its miniaturization design.

[0106] Furthermore, existing technologies using air compression or vibration nebulizers require manual addition of liquid to the device. In contrast, this solution pre-stores the drug solution in the storage chamber 12, eliminating the need for manual addition to the nebulizer 100. This simplifies operation and prevents the introduction of new air into the container 1, reducing the risk of contamination. Moreover, the nebulizer 100 in this solution is simple, compact, and portable, minimizing liquid waste and ensuring more accurate dosing for small-dose nebulization. Additionally, the nebulizer 100 in this solution is powered by the power mechanism 2, resulting in lower pressure on the liquid output. For drugs with relatively complex physicochemical properties (such as nanobody drugs), this helps maintain the integrity of the drug's structure and biological activity during delivery.

[0107] In one implementation, such as Figure 1 and Figure 9As shown, the atomizing device 100 also includes an operating component 3, which is connected to the first drive rod 221. When the operating component 3 undergoes a first movement under external force, it drives the first drive rod 221 to undergo a first movement; when the operating component 3 undergoes a second movement under external force, it drives the first drive rod 221 to undergo a second movement. Specifically, since the piston rod assembly 22 needs to be inserted into the container 1 to push the piston 21, the lateral dimension of the first drive rod 221 is limited, resulting in a small size that is inconvenient for the user to hold. This solution addresses this by configuring the operating component 3, allowing for adjustment of its size to facilitate user grip.

[0108] In one embodiment, the first movement is configured to involve moving along a first direction a while undergoing a first rotation. The second movement is configured to involve moving along a second direction b while undergoing a second rotation. The first rotation and the second rotation are in opposite directions. Specifically, as shown... Figure 9 and Figure 12 As shown, when the atomizing device 100 is atomizing, an external force drives the first drive rod 221 to rotate and move along the first direction a, thereby causing the first drive rod 221 to be displaced relative to the second drive rod 222 in the first direction a, resulting in an increase in the total length of the piston rod assembly 22. Figure 12 and Figure 14 As shown, when the atomizing device 100 atomizes, the first drive rod 221 rotates in the second direction while moving along the second direction b. At this time, there is no relative movement between the first drive rod 221 and the second drive rod 222. The piston rod assembly 22 is displaced as a whole in the second direction b, so that the second drive rod 222 can drive the piston 21 to be displaced in the second direction b, thereby realizing atomization.

[0109] Furthermore, when the first drive rod 221 undergoes a first movement, the second drive rod 222 undergoes a first rotation but does not move along the first direction a. It should be understood that both the first drive rod 221 and the second drive rod 222 undergo a first rotation, but at different speeds, so that the first drive rod 221 can be displaced relative to the second drive rod 222 in the first direction a. When the first drive rod 221 undergoes a second movement, the piston rod assembly 22 as a whole undergoes a second movement, and the second drive rod 222 drives the piston 21 to undergo a second movement. That is, both the second drive rod 222 and the piston 21 undergo a second rotation while moving along the second direction b.

[0110] Furthermore, such as Figure 1 and Figure 10As shown, the piston rod assembly 22 also includes a third drive rod 223. The first drive rod 221, the third drive rod 223 and the second drive rod 222 are sequentially engaged, and the third drive rod 223 serves as a connector between the first drive rod 221 and the second drive rod 222.

[0111] like Figure 9 and Figure 12 As shown, when the first drive rod 221 has not reached its limit position, the first drive rod 221 moves in a first direction a to enable the atomizing device 100 to perform atomization. During this movement, the first drive rod 221 displaces relative to the third drive rod 223 in the first direction a. The third drive rod 223 drives the second drive rod 222 to rotate in a first direction but does not move along the first direction a. The rotational speeds of the first drive rod 221 and the third drive rod 223 are different. That is, during the first stage of atomization, the first drive rod 221 can displace relative to the third drive rod 223 in the first direction a, while the third drive rod 223 and the second drive rod 222 cannot displace in the first direction a, thereby increasing the total length of the piston rod assembly 22. When the first drive rod 221 performs a second movement, the first drive rod 221, the third drive rod 223, and the second drive rod 222 do not move relative to each other, thus enabling the atomizing device 100 to perform atomization.

[0112] like Figure 15As shown, as the atomizing device 100 is used more frequently, the displacement of the first drive rod 221 in the first direction a gradually increases until the first drive rod 221 is at its limit position relative to the third drive rod 223 in the first direction a. At this point, the first drive rod 221 can no longer move relative to the third drive rod 223 in the first direction a. During the first movement of the first drive rod 221, due to the force applied to the first drive rod 221, including the force along the first rotation direction and the force along the first direction a, the first drive rod 221 will drive the third drive rod 223 relative to the second drive rod 223. 221 is displaced in the first direction a. The third drive rod 223 and the second drive rod 222 rotate at different speeds, thereby increasing the total length of the piston rod assembly 22. That is, during the second stage of atomization, the first drive rod 221 cannot be displaced relative to the third drive rod 223 in the first direction a, while the third drive rod 223 can be displaced relative to the second drive rod 222 in the first direction a. Due to the cooperation of the first drive rod 221 and the third drive rod 223, the third drive rod 223 will be displaced together with the first drive rod 221 relative to the second drive rod 222 in the first direction a. That is, the first drive rod 223 and the third drive rod 223 move synchronously. When the first drive rod 221 moves in the second direction, the first drive rod 221, the third drive rod 223 and the second drive rod 222 do not move relative to each other, so that the atomizing device 100 performs atomization.

[0113] In the above scheme, during the entire service life of the atomizing device 100, the atomization process of the atomizing device 100 has two stages: a first stage and a second stage. The number of uses of the atomizing device 100 corresponding to each of the first and second stages is related to the lengths of the first drive rod 221, the third drive rod 223, and the second drive rod 222, and their interrelationship. For example, by limiting the lengths of the first drive rod 221, the third drive rod 223, and the second drive rod 222, and their interrelationship, the entire service life of the atomizing device 100 is 20 uses. The first stage corresponds to the initial 10 uses, and the second stage corresponds to the remaining 10 uses. By adding the third drive rod 223, the maximum achievable length of the piston rod assembly 22 can be further extended, thereby increasing the total number of uses of the atomizing device 100.

[0114] Of course, the piston rod assembly 22 is not limited to including three drive rods; it may also include a fourth drive rod, a fifth drive rod, or even more drive rods to meet the requirements of more uses. Preferably, to facilitate the miniaturization design of the atomizing device 100, the piston rod assembly 22 includes a first drive rod 221, a third drive rod 223, and a second drive rod 222. Furthermore, when the third drive rod 223 is displaced relative to the second drive rod 222 in the first direction a until the third drive rod 223 is at its extreme position, such as... Figure 16 As shown, the third drive rod 223 can no longer be displaced relative to the second drive rod 222 in the first direction a, the total length of the piston rod assembly 22 reaches its maximum value, and the container 1 completes its last use. At this time, the atomizing device 100 is in a terminated state. Of course, the last use of the container 1 can also be directly determined by the piston 21. That is, when the piston 21 moves along the second direction b to abut against the inner wall of the outlet end of the container 1, the container 1 completes its last use. At this time, the third drive rod 223 may or may not reach the limit position of the third drive rod.

[0115] In one implementation, such as Figure 2 , Figure 3 , Figure 4 and Figure 10 As shown, the first drive rod 221 has a first sawtooth thread 2211, the second drive rod 222 has a second sawtooth thread 2221, and the third drive rod 223 has a third sawtooth thread 2231 and a fourth sawtooth thread 2232. The first sawtooth thread 2211 and the third sawtooth thread 2231 are threaded together, and the second sawtooth thread 2221 and the fourth sawtooth thread 2232 are threaded together. Specifically, the first drive rod 221, the third drive rod 223, and the second drive rod 222 are sequentially engaged by sawtooth threads, which can transmit unidirectional axial force. Figure 12 As shown, during the first stage of atomization, the first drive rod 221 can rotate relative to the third drive rod 223 while simultaneously displacing in the first direction a, thereby increasing the total length of the piston rod assembly 22. However, during atomization, the first drive rod 221 cannot displace relative to the third drive rod 223 in the second direction b. The first drive rod 221, the third drive rod 223, and the second drive rod 222 move synchronously, ensuring that the total length of the piston rod assembly 22 remains unchanged. Similarly, as... Figure 15As shown, in the second stage of the atomization process, the third drive rod 223 can rotate relative to the second drive rod 222 while displacing in the first direction a, so as to increase the total length of the piston rod assembly 22. However, during the atomization process, the third drive rod 223 cannot displace relative to the second drive rod 222 in the second direction b, so that the total length of the piston rod assembly 22 remains unchanged. In other words, the total length of the piston rod assembly 22 can increase during the atomization process, but does not change during the atomization process.

[0116] Furthermore, such as Figure 2 , Figure 3 , Figure 4 and Figure 10 As shown, the third drive rod 223 is a hollow structure and is sleeved on the outer periphery of the first drive rod 221; the second drive rod 222 is a hollow structure and is sleeved on the outer periphery of the third drive rod 223. A third sawtooth thread 2231 is provided on the circumferential inner wall of the third drive rod 223, and a fourth sawtooth thread 2232 is provided on the circumferential outer wall of the third drive rod 223. The piston rod assembly 22 of this design has simple and compact structures for its components, which helps to reduce the space occupied by the piston rod assembly 22.

[0117] Furthermore, such as Figures 7 to 10 As shown, the operating component 3 has a first engaging groove 31 and an annular groove 32 at one end facing the piston rod assembly 22, with the annular groove 32 surrounding the first engaging groove 31. The first end 2212 of the first drive rod 221, facing away from the piston 21, extends out to the outside of the third drive rod 223, and the first end 2212 is engaged in the first engaging groove 31. Thus, the user can drive the first drive rod 221 to move by operating the operating component 3. Before the atomizing device 100 is used for the first time, the ends of the second drive rod 222 and the third drive rod 223 facing away from the piston 21 are inserted into the annular groove 32 to make full use of the space between the operating component 3 and the piston 21, so as to extend the length of the second drive rod 222 and the third drive rod 223 as much as possible, that is, to extend the total length of the piston rod assembly 22 to the maximum value.

[0118] In one implementation, such as Figure 1 , Figure 7 and Figure 10As shown, the power mechanism 2 also includes a meshing pawl 23 and a ratchet 24. The pawl 23 is eccentrically located at one end of the second drive rod 222, and the ratchet 24 is coaxially connected to the piston 21. When the first drive rod 221 undergoes a first movement, the second drive rod 222 will rotate for the first time. Since the pawl 23 is eccentrically located on the second drive rod 222, the pawl 23 will rotate around the central axis of the second drive rod 222. Furthermore, since the pawl and ratchet mechanism is a unidirectional intermittent motion mechanism, during the atomization process, the pawl 23 rotates independently of the ratchet 24, the ratchet 24 does not rotate, and thus the piston 21 remains stationary. When the first drive rod 221 undergoes a second movement, the second drive rod 222 will rotate for the second time, and the pawl 23 will rotate in the opposite direction. Therefore, the pawl 23 will drive the ratchet 24 to rotate, and the ratchet 24 will drive the piston 21 to rotate. That is, while the second drive rod 222 pushes the piston 21 to move along the second direction b, the pawl 23 pushes the ratchet 24 to drive the piston 21 to rotate for the second time.

[0119] Furthermore, such as Figure 4 and Figure 10 As shown, the second drive rod 222 has an eccentric shaft 2222 at one end facing the piston 21, and the pawl 23 is installed on the eccentric shaft 2222. The pawl 23 is easy to assemble.

[0120] Furthermore, the ratchet 24 is engaged with the piston 21, making assembly of the ratchet 24 and the piston 21 convenient.

[0121] Furthermore, such as Figure 5 and Figure 6 As shown, the piston 21 has a groove 211 at one end facing the second drive rod 222, and two second engaging grooves 2111 are provided in the groove 211. Two engaging protrusions 241 are provided on the circumferential sidewall of the ratchet 24. The ratchet 24 is embedded in the groove 211, and the second engaging grooves 2111 engage with the engaging protrusions 241 one by one, ensuring a firm and stable engagement between the ratchet 24 and the piston 21. To improve the stability of the engagement, the two engaging protrusions 241 are distributed radially along the ratchet 24. Of course, the number of grooves 211 and engaging protrusions 241 is not limited to two; it can also be three or even more.

[0122] In one implementation, such as Figure 1 , Figure 9 and Figure 11 As shown, the atomizing device 100 also includes a housing 4, which has a hollow cylindrical structure. The container 1 and the power mechanism 2 are both housed within the housing 4. The housing 4 is used to improve the aesthetic appearance of the atomizing device 100 and to protect the container 1 and the power mechanism 2 from dust. The operating component 3 is movably inserted into the distal port 41 of the housing 4, and there is a sealed fit between the operating component 3 and the distal port 41.

[0123] Furthermore, such as Figure 1 , Figure 9 and Figure 12 As shown, the atomizing device 100 also includes a reset sleeve 5 and a reset spring 6. Both the reset sleeve 5 and the reset spring 6 are located within the outer casing 4. The container 1 is at least partially located within the reset sleeve 5. The two ends of the reset spring 6 are connected to the reset sleeve 5 and the outer casing 4, respectively. The reset sleeve 5 is connected to the operating component 3. When the operating component 3 undergoes a first movement under external force, the reset sleeve 5 moves synchronously with the operating component 3, and the reset spring 6 is stretched, entering an energy storage state. When the operating component 3 undergoes a second movement, the reset spring 6 retracts and applies a pulling force along the second direction b to the reset sleeve 5, causing the reset sleeve 5 to pull the operating component 3 along the second direction b. In this design, by setting the reset sleeve 5 and the reset spring 6, during the atomization process, the reset spring 6 can apply a pulling force along the second direction b to the operating component 3, assisting the operating component 3 in resetting and saving effort for the user. When the atomizing device 100 completes atomization, the operating component 3, the reset sleeve 5, and the reset spring 6 all return to their respective initial positions. At this time, the reset spring 6 is in a free state.

[0124] Specifically, such as Figure 9 and Figure 12 As shown, when the atomizing device 100 is atomizing, the user rotates the operating component 3 clockwise while manually moving the operating component 3 in the first direction a, so that the operating component 3 drives the first drive rod 221 to perform a first movement. When the atomization process is completed, as shown... Figure 14 As shown, when the user rotates the operating component 3 in the opposite direction, the user does not need to manually apply a force along the second direction b to the operating component 3. Under the retraction force of the return spring 6, the return sleeve 5 applies a force along the second direction b to the operating component 3, so that the operating component 3 drives the first drive rod 221 to perform a second movement.

[0125] In one implementation, such as Figure 1 and Figure 9 As shown, the inner circumferential wall of the reset sleeve 5 abuts against the outer circumferential wall of the container 1. Specifically, the reset sleeve 5 includes a cylindrical body 53, the inner circumferential wall of which abuts against the outer circumferential wall of the container 1. Since the reset sleeve 5 is connected to the operating component 3, and the operating component 3 is installed in the outer shell 4, the reset sleeve 5 will not shake inside the outer shell 4. In this solution, the container 1 is restricted by the reset sleeve 5 to prevent it from shaking. Furthermore, the outer circumferential wall of the reset sleeve 5 abuts against the inner wall of the outer shell 4, improving the stability of the reset sleeve 5 assembly and further ensuring that the container 1 will not shake.

[0126] Among them, such as Figure 1As shown, the cylinder 53 can be composed of multiple connecting posts 531, which helps to reduce the weight of the reset sleeve 5. The reset sleeve 5 also includes a first annular structure 54 and a second annular structure 55, which are connected by connecting posts 531. All the connecting posts 531 are arranged in a circumferential array, and the reset spring 6 is fixedly connected to the second annular structure 55. Of course, the cylinder 53 can also be an integral annular cylinder structure.

[0127] In one implementation, such as Figure 1 , Figure 8 and Figure 10 As shown, the operating component 3 is provided with a driving tooth 33, and the reset sleeve 5 is provided with a driven tooth 51. The driving tooth 33 and the driven tooth 51 mesh and are tightly engaged. Specifically, when the operating component 3 rotates, the driving tooth 33 transmits the rotational force to the driven tooth 51, thereby causing the reset sleeve 5 to rotate. At the same time, because the driving tooth 33 and the driven tooth 51 are tightly engaged, the operating component 3 can drive the reset sleeve 5 to move along the first direction a or the second direction b, so that the reset sleeve 5 moves synchronously with the operating component 3.

[0128] In one implementation, such as Figure 1 , Figure 8 , Figure 9 and Figure 12 As shown, the operating component 3 is provided with a cap 34, the inner wall of the outer shell 4 is provided with a first abutting surface 42, the far end of the outer shell 4 is provided with a second abutting surface 43, the cap 34 is located outside the outer shell 4, and the cap 34 can be held by the user to operate the operating component 3.

[0129] When the operating component 3 undergoes its first movement, such as Figure 12 As shown, when the reset sleeve 5 moves to abut against the first contact surface 42, the operating component 3 stops moving along the first direction a, and the atomizing device 100 completes the atomization process, thereby limiting the operating component 3 from continuing to move along the first direction a, in order to limit the one-time increase in the total length of the piston rod assembly 22. In each atomization step of the atomizing device 100, the total length increment of the piston rod assembly 22 is constant. In a specific embodiment, the sleeve end face 52 of the reset sleeve 5 abuts against the first contact surface 42, so that the operating component 3 stops moving along the first direction a.

[0130] like Figure 8 and Figure 16As shown, when the operating component 3 moves to the point where the cap 34 abuts against the second contact surface 43, the operating component 3 stops moving along the second direction b, and the atomizing device 100 completes atomization. This limits the displacement of the operating component 3 in the second direction b, thereby limiting the displacement of the piston rod assembly 22 and the piston 21 in the second direction b to ensure that the atomization dose is constant each time. In one specific embodiment, the cap end face 341 of the cap 34 abuts against the second contact surface 43 to stop the operating component 3 from moving along the second direction b.

[0131] Furthermore, such as Figure 8 As shown, the circumferential surface of the cap 34 is provided with a concave-convex structure 342 to increase the friction between the cap 34 and the user's hand and prevent slippage. Furthermore, the concave-convex structure 342 is annular.

[0132] In one implementation, such as Figure 8 As shown, the operating part 3 is provided with a column 35, an end cap 34 is connected to one end of the column 35 away from the outer shell 4, and an active tooth 33 is connected to the other end of the column 35. There are multiple active teeth 33, which are evenly distributed along the circumference of the column 35. The structure of the driven tooth 51 matches the active tooth 33.

[0133] In one implementation, such as Figure 1 and Figure 9 As shown, the atomizing device 100 also includes an atomizing chip 7, which is disposed in the outlet end of the container 1. The atomizing chip 7 is provided with multiple flow channels 71. When the atomizing device 100 dispenses liquid, the liquid in the container 1 is squeezed by the piston 21, and the hydraulic pressure reaches a preset value. The liquid passes through the flow channels 71 at a certain speed, forming atomized fine particles before escaping.

[0134] In one implementation, such as Figure 6 and Figure 16 As shown, a limiting post 213 is provided at one end of the piston 21 away from the piston rod assembly 22. When the atomizing device 100 finishes its last use, the limiting post 213 is inserted into the outlet end of the container 1 and abuts against the atomizing chip 7 to restrict the piston 21 from continuing to move along the second direction b.

[0135] In one implementation, such as Figure 1 and Figure 9 As shown, the container 1 has an annular protrusion 11 at the outlet end and an annular groove (not shown in the figure) at the near end of the outer shell 4. The annular protrusion 11 is engaged with the annular groove to assemble the container 1 and the outer shell 4 and prevent the container 1 from moving.

[0136] In one implementation, such as Figure 17 and Figure 19As shown, the atomizing device 100 also includes a mouthpiece assembly 8, which includes a mouthpiece housing 81 and a one-way valve 82. The mouthpiece housing 81 is provided with a connection port 811, an inhalation port 812 and an air inlet port 813. The connection port 811 is connected to the outlet end of the container 1. The one-way valve 82 is located in the air inlet port 813. The inhalation port 812 is for the user to hold in their mouth. Specifically, when using the atomizing device 100, firstly, the user operates the operating component 3 to drive the first drive rod 221 to make a first movement, so that the atomizing device 100 completes the atomization process; then, the user's mouth covers the inhalation port 812, and the user operates the operating component 3 to drive the first drive rod 221 to make a second movement, so that the atomizing device 100 starts atomizing. The liquid in the container 1 passes through the atomizing chip 7 to form atomized fine particles. The atomized fine particles enter the mouthpiece housing 81 through the connection port 811, and then enter the user's mouth through the inhalation port 812. In this process, since the mouthpiece housing 81 is under negative pressure, under the pressure difference between the inside and outside, the outside gas enters the mouthpiece housing 81 through the one-way valve 82. In this way, by introducing air, the air can mix with the droplets, increasing the shear force of the droplets and optimizing the spray effect of the droplets.

[0137] Furthermore, such as Figure 17 As shown, the nozzle housing 81 has a three-way structure, with the suction port 812 and the air inlet port 813 positioned opposite each other. The air entering from the air inlet port 813 can quickly mix with the mist droplets, improving the spraying effect.

[0138] Furthermore, such as Figures 17 to 19 As shown, it also includes an end cap 83, which covers the air inlet port 813. The end cap 83 has multiple air inlets 831, and a one-way valve 82 is installed on the side of the end cap 83 facing the nozzle housing 81 and covers the multiple air inlets 831. Specifically, the side of the end cap 83 facing the nozzle housing 81 has a mounting post 832, all the air inlets 831 are distributed around the mounting post 832, and the one-way valve 82 is sleeved on the mounting post 832 and covers the air inlets 831.

[0139] Furthermore, such as Figure 17As shown, the suction port 812 is generally flat to facilitate user oral contact. Furthermore, occlusal limiting protrusions 8121 are provided on both sides of the outer wall of the suction port 812. After the user takes the suction port 812 into their mouth, their teeth abut against the occlusal limiting protrusions 8121. In this design, by providing occlusal limiting protrusions 8121 on the outer wall of the suction port 812, on the one hand, when the user takes the suction port 812 into their mouth, the occlusal limiting protrusions 8121 ensure that the suction port 812 is in a suitable position in the user's mouth, avoiding being too deep or too shallow, and preventing improper positioning that could affect the suction effect and user comfort; on the other hand, the occlusal limiting protrusions 8121 also prevent the mouthpiece assembly 8 from slipping off. Of course, for nebulizers 100 with shorter inhalation times, the inhalation port 812 may not have a bite-limiting protrusion 8121. For nebulizers with longer inhalation times (e.g., 3 minutes of nebulization), the inhalation port 812 has a bite-limiting protrusion 8121, which helps users to easily and effortlessly hold the inhalation port 812 in their mouths.

[0140] Furthermore, such as Figure 9 As shown, the near end of the outer shell 4 is provided with an annular post 44, the outlet end of the container 1 is opposite to the channel position of the annular post 44, and the connection port 811 of the suction nozzle housing 81 is sealed to the annular post 44 so that the connection port 811 is connected to the outlet end of the container 1.

[0141] In one implementation, such as Figure 9 and Figure 17 As shown, when the user uses the atomizing device 100, the mouthpiece housing 81 is placed horizontally and the outer shell 4 is placed vertically. The outer shell 4 is located on the upper part of the mouthpiece housing 81, and the cap 34 is located on the upper part of the outer shell 4. This makes it easy for the user to observe the cap 34 and operate the cap 34 smoothly to start the atomization process.

[0142] It should be understood that the above embodiments are exemplary and are not intended to encompass all possible implementations included in the claims. Various modifications and changes can be made to the above embodiments without departing from the scope of this disclosure. Similarly, the various technical features of the above embodiments can be arbitrarily combined to form other embodiments of the present invention that may not be explicitly described. Therefore, the above embodiments only illustrate several implementations of the present invention and do not limit the scope of protection of this patent.

Claims

1. An atomizing device, characterized in that, The atomizing device (100) includes: Container (1), used to store liquid; The power mechanism (2) includes a piston (21) and a piston rod assembly (22), the piston (21) being movably mounted in the container (1), and the piston rod assembly (22) including at least a first drive rod (221) and a second drive rod (222). When the first drive rod (221) moves, the first drive rod (221) is displaced relative to the second drive rod (222) in the first direction (a) to increase the total length of the piston rod assembly (22), and the second drive rod (222) does not move along the first direction (a), and the piston (21) does not move in its axial direction, so that the atomizing device (100) is in the atomizing state; When the first drive rod (221) moves in the second direction, the piston rod assembly (22) moves synchronously in the second direction (b), and the second drive rod (222) drives the piston (21) to move in the second direction (b) so that the piston (21) penetrates into the container (1) so that the atomizing device (100) can atomize. Wherein, the first direction (a) is opposite to the second direction (b), and the total length of the piston rod assembly (22) increases with each use of the atomizing device (100).

2. The atomizing device according to claim 1, characterized in that, The atomizing device (100) also includes an operating component (3) which is connected to the first drive rod (221); When the operating component (3) moves under external force, it drives the first drive rod (221) to move in the first direction; when the operating component (3) moves under external force, it drives the first drive rod (221) to move in the second direction.

3. The atomizing device according to claim 1 or 2, characterized in that, The first movement is configured to involve a first rotation while moving along a first direction (a); the second movement is configured to involve a second rotation while moving along a second direction (b); wherein the first rotation is opposite to the second rotation.

4. The atomizing device according to claim 3, characterized in that, When the first drive rod (221) undergoes a first movement, the second drive rod (222) undergoes a first rotation and does not move along the first direction (a); When the first drive rod (221) moves in the second direction, the piston rod assembly (22) moves in the second direction as a whole, and the second drive rod (222) drives the piston (21) to move in the second direction.

5. The atomizing device according to claim 4, characterized in that, The piston rod assembly (22) further includes a third drive rod (223), wherein the first drive rod (221), the third drive rod (223) and the second drive rod (222) are sequentially engaged; When the first drive rod (221) has not reached the limit position of the first drive rod and a first movement occurs, the first drive rod (221) is displaced relative to the third drive rod (223) in the first direction (a), and the third drive rod (223) drives the second drive rod (222) to rotate for the first time and does not move along the first direction (a); When the first drive rod (221) is displaced relative to the third drive rod (223) in the first direction (a) until the first drive rod (221) is at the first drive rod limit position, the first drive rod (221) can no longer be displaced relative to the third drive rod (223) in the first direction (a). During the process of the first drive rod (221) performing the first movement again, the first drive rod (221) drives the third drive rod (223) to be displaced relative to the second drive rod (222) in the first direction (a) so as to increase the total length of the piston rod assembly (22). When the first drive rod (221) moves in the second direction, the first drive rod (221), the third drive rod (223) and the second drive rod (222) do not move relative to each other.

6. The atomizing device according to claim 5, characterized in that, When the third drive rod (223) is displaced relative to the second drive rod (222) in the first direction (a) until the third drive rod (223) is at its limit position, the third drive rod (223) can no longer be displaced relative to the second drive rod (222) in the first direction (a), the total length of the piston rod assembly (22) reaches its maximum value, and the container (1) completes its last use.

7. The atomizing device according to claim 5, characterized in that, The first drive rod (221) is provided with a first sawtooth thread (2211), the second drive rod (222) is provided with a second sawtooth thread (2221), and the third drive rod (223) is provided with a third sawtooth thread (2231) and a fourth sawtooth thread (2232). The first sawtooth thread (2211) and the third sawtooth thread (2231) are threaded together, and the second sawtooth thread (2221) and the fourth sawtooth thread (2232) are threaded together.

8. The atomizing device according to claim 7, characterized in that, The third drive rod (223) is a hollow structure and is sleeved on the outer periphery of the first drive rod (221); the second drive rod (222) is a hollow structure and is sleeved on the outer periphery of the third drive rod (223); The third sawtooth thread (2231) is provided on the circumferential inner wall of the third drive rod (223), and the fourth sawtooth thread (2232) is provided on the circumferential outer wall of the third drive rod (223).

9. The atomizing device according to claim 8, characterized in that, The atomizing device (100) further includes an operating component (3) connected to the first drive rod (221), the operating component (3) being used to drive the first drive rod (221) to perform a first movement or a second movement; The operating component (3) is provided with a first locking groove (31) and an annular groove (32) at one end facing the piston rod assembly (22), and the annular groove (32) is arranged around the first locking groove (31); The first drive rod (221) extends from the first end (2212) away from the piston (21) to the outside of the third drive rod (223) and is engaged in the first engagement groove (31); Before the atomizing device (100) is used for the first time, the ends of the second drive rod (222) and the third drive rod (223) opposite to the piston (21) are inserted into the annular groove (32).

10. The atomizing device according to claim 4, characterized in that, The power mechanism (2) also includes a meshing pawl (23) and a ratchet (24); the pawl (23) is eccentrically located at one end of the second drive rod (222), and the ratchet (24) is coaxially connected to the piston (21); When the first drive rod (221) performs the first movement, the pawl (23) rotates independently of the ratchet (24); When the first drive rod (221) moves in the second direction, the second drive rod (222) pushes the piston (21) to move in the second direction (b), and at the same time, the pawl (23) pushes the ratchet (24) to drive the piston (21) to rotate in the second direction.

11. The atomizing device according to claim 10, characterized in that, The second drive rod (222) has an eccentric shaft (2222) at one end facing the piston (21), and the pawl (23) is mounted on the eccentric shaft (2222). And / or, the ratchet (24) engages with the piston (21). And / or, the piston (21) has a groove (211) at one end facing the second drive rod (222), the groove (211) has at least two second snap-fit ​​grooves (2111), the ratchet (24) has at least two snap-fit ​​protrusions (241) on its circumferential sidewall, the ratchet (24) is embedded in the groove (211), and the second snap-fit ​​grooves (2111) and the snap-fit ​​protrusions (241) snap-fit ​​one by one.

12. The atomizing device according to claim 3, characterized in that, The atomizing device (100) further includes an operating component (3) connected to the first drive rod (221), the operating component (3) being used to drive the first drive rod (221) to perform a first movement or a second movement; The atomizing device (100) also includes a housing (4), the container (1) and the power mechanism (2) are both located in the housing (4), the operating component (3) is movably inserted into the remote port (41) of the housing (4), and the operating component (3) and the remote port (41) are sealed together.

13. The atomizing device according to claim 12, characterized in that, The atomizing device (100) further includes a reset sleeve (5) and a reset spring (6). The container (1) is at least partially located in the reset sleeve (5). The two ends of the reset spring (6) are connected to the reset sleeve (5) and the outer shell (4) respectively. The reset sleeve (5) is connected to the operating component (3). When the operating component (3) undergoes a first movement under external force, the reset sleeve (5) moves synchronously with the operating component (3), and the reset spring (6) is stretched. When the operating component (3) undergoes a second movement, the reset spring (6) retracts and applies a pulling force along the second direction (b) to the reset sleeve (5), and the reset sleeve (5) pulls the operating component (3) along the second direction (b).

14. The atomizing device according to claim 13, characterized in that, The inner circumferential wall of the reset sleeve (5) abuts against the outer circumferential wall of the container (1); And / or, the operating component (3) is provided with an active tooth (33), the reset sleeve (5) is provided with a driven tooth (51), the active tooth (33) meshes with the driven tooth (51) and the two are tightly engaged; And / or, the operating component (3) is provided with a cap (34), the inner wall of the outer shell (4) is provided with a first abutting surface (42), and the far end of the outer shell (4) is provided with a second abutting surface (43). When the operating component (3) undergoes a first movement, when the reset sleeve (5) moves to abut against the first contact surface (42), the operating component (3) stops moving along the first direction (a); When the operating component (3) moves to the point where the cap (34) abuts against the second contact surface (43), the operating component (3) stops moving along the second direction (b).

15. The atomizing device according to claim 1, characterized in that, The atomizing device (100) also includes an atomizing chip (7), which is disposed in the outlet end of the container (1); when the atomizing device (100) dispenses liquid, the liquid in the container (1) is processed by the atomizing chip (7) to form atomized fine particles and then escapes. And / or, the atomizing device (100) further includes a housing (4), the container (1) is disposed in the housing (4); the outlet end of the container (1) is provided with an annular protrusion (11), the near end of the housing (4) is provided with an annular groove, and the annular protrusion (11) is engaged with the annular groove.

16. The atomizing device according to claim 1, characterized in that, The atomizing device (100) further includes a mouthpiece assembly (8), which comprises: The nozzle housing (81) is provided with a connection port (811), a suction port (812) and an air inlet port (813), wherein the connection port (811) is connected to the outlet end of the container (1); A one-way valve (82) is provided in the air inlet port (813).

17. The atomizing device according to claim 16, characterized in that, The atomizing device (100) further includes an end cap (83) which is disposed on the air inlet port (813); The end cap (83) is provided with a plurality of air inlets (831), and the one-way valve (82) is installed on the side of the end cap (83) facing the nozzle housing (81) and covers the plurality of air inlets (831).

Images