Liquid inlet control mechanism and electronic atomizer

Abstract

This application discloses a liquid inlet control mechanism and an electronic atomizer. The liquid inlet control mechanism includes a liquid guiding channel and a valve assembly. The valve assembly includes a liquid passing cylinder, a valve core, an elastic element, and an elastic sealing membrane. The liquid passing cylinder is sleeved within the liquid guiding channel and has a limiting block inside. The valve core is movably disposed within the liquid passing cylinder, and the limiting block is used to limit the movement of the valve core towards the liquid-flowing end of the liquid guiding channel. The elastic element is disposed within the liquid passing cylinder and is used to drive the valve core to move towards the control end of the liquid guiding channel. The end of the valve core near the control end extends out of the liquid passing cylinder and seals the control end under the drive of the elastic element. The elastic sealing membrane has a narrow opening and is sealed within the control end, further away from the liquid-flowing end than the valve core. The elastic sealing membrane can automatically close. This liquid inlet control mechanism does not cause leakage of the atomizing matrix during the valve assembly opening transition phase and after closing.

Description

Technical Field

[0001] This application relates to the field of atomization technology, and in particular to liquid inlet control mechanisms and electronic atomizers. Background Technology

[0002] In electronic atomizers equipped with oil bottles, valves are typically installed between the oil bottle and the atomizing device to achieve precise control over the liquid flow. These valves change the flow path by shifting the valve core, thereby opening or closing the liquid passage and meeting users' needs for replenishing the atomizing medium as needed and preventing leakage.

[0003] However, from the perspective of practical application scenarios and structural characteristics, although these valves can achieve basic on / off functions, they have inherent defects that are difficult to avoid. The primary problem is the non-instantaneous nature of the valve core movement process. The valve core needs to go through a physical journey and time to move from the initial position (fully closed or fully open) to the target position (fully open or fully closed). This gradual opening and closing process means that when the valve is in a semi-open transition state, there is always a certain amount of liquid flow space in the liquid guiding channel. If the user stops operating at this time or the valve core experiences a slight jamming, the atomizing matrix may continue to flow into the liquid guiding channel in small amounts under the action of pressure difference (such as the gravity of the oil bottle or the negative pressure inside the atomizing device), creating a hidden danger for subsequent leakage.

[0004] More importantly, even after the valve closes, a certain amount of atomized matrix remains inside the liquid guiding channel, and this residual liquid is highly prone to leakage. The causes are twofold: First, to ensure smooth liquid flow, the liquid guiding channel is typically designed as a long, thin tubular structure, and its inner wall is difficult to make perfectly smooth. Combined with the inherent viscosity of the atomized matrix, surface tension and adhesion cause it to form a uniform liquid film on the inner wall of the channel during flow. Second, to ensure flexible valve core movement, a tiny gap (usually on the micrometer scale) must be maintained between the valve core and the liquid guiding channel. When closed, this gap fills with atomized matrix, creating gap residue. When the atomizer is tilted, inverted, or subjected to vibration, the residual atomized matrix in the liquid guiding channel slowly flows towards the end under the influence of gravity and inertia, eventually seeping out, affecting the product's appearance and hygiene, thus impacting the user experience. Utility Model Content

[0005] The main objective of this application is to provide a liquid inlet control mechanism and an electronic atomizer to solve the technical problem of leakage of the atomized matrix during the opening transition phase and after closing of traditional single valves.

[0006] To achieve the above objectives, the first aspect of this application proposes a liquid inlet control mechanism, which includes a liquid guiding channel and a valve assembly. The liquid guiding channel includes a liquid inlet end and a control end, and the valve assembly is sleeved within the liquid guiding channel. The valve assembly includes:

[0007] A liquid-passing cylinder is fitted inside the liquid-guiding channel, and a limiting block is provided inside the liquid-passing cylinder;

[0008] The valve core is movably disposed inside the liquid-passing cylinder, and the limiting block is used to limit the movement of the valve core toward the liquid-passing end;

[0009] An elastic element, disposed within the liquid-passing cylinder, drives the valve core to move toward the control end. One end of the valve core near the control end extends outside the liquid-passing cylinder and, driven by the elastic element, seals the control end.

[0010] An elastic sealing membrane with a narrow opening is sealed inside the control end. The elastic sealing membrane is further away from the liquid inlet end than the valve core, and the elastic sealing membrane can close automatically.

[0011] Optionally, the shortest distance between the elastic sealing membrane and the valve core in the axial direction of the liquid guiding channel is greater than or equal to 0.5 mm and less than or equal to 2 mm.

[0012] Optionally, the liquid-passing cylinder has an inner port and an outer port at both ends, the inner port being closer to the liquid-passing end than the outer port, the area of ​​the inner port being smaller than the area of ​​the outer port, and a portion of the inner wall of the end of the liquid-passing cylinder with the inner port extending toward the outer port to form the limiting block.

[0013] Optionally, the limiting block is connected to the wall of the inner opening.

[0014] Optionally, the number of the limiting blocks is at least two, and the at least two limiting blocks are arranged circumferentially along the inner opening.

[0015] Optionally, the ratio of the total length of at least two of the limiting blocks in the circumferential direction of the inner opening to the circumference of the inner opening is 0.2 to 0.5.

[0016] Optionally, the wall of the inner opening extends away from the outer opening to form a guide tube.

[0017] Optionally, the valve core includes a plug and a rod that are connected to each other. The rod is closer to the liquid inlet than the plug. The limiting block is used to limit the plug. The plug is hemispherical. The planar portion of the plug is connected to the rod, and the curved portion of the plug is sealed to the liquid channel.

[0018] Optionally, the elastic element is a spring, which is sleeved outside the rod and the limiting block. One end of the elastic element is connected to the planar portion of the plug, and the other end of the elastic element is connected to the inner wall of the end of the liquid-passing cylinder that has the inner opening.

[0019] Optionally, the fluid channel is integrally formed with the elastic sealing membrane.

[0020] A second aspect of this application provides an electronic atomizer, the electronic atomizer comprising:

[0021] Atomizing device;

[0022] A liquid supply device, one end of which is connected to a liquid guide tube, has a liquid outlet at the end of the liquid guide tube furthest from the liquid supply device; and

[0023] In any of the above-described liquid inlet control mechanisms, the liquid inlet end is connected to and communicates with the atomizing device, and the liquid guide tube is used to push the valve core toward the liquid inlet end to open the communication between the atomizing device and the liquid supply device.

[0024] A second aspect of this application provides for another electronic atomizer, said electronic atomizer comprising:

[0025] The atomizing device has a liquid guide tube connected to one end, and a liquid outlet is opened at the end of the liquid guide tube away from the liquid supply device.

[0026] Liquid supply device; and

[0027] In any of the above-described liquid inlet control mechanisms, the liquid inlet end is connected to and communicates with the liquid supply device, and the liquid guide tube is used to push the valve core toward the liquid inlet end to open the communication between the atomizing device and the liquid supply device.

[0028] In the liquid inlet control mechanism of this application, the elastic sealing membrane and valve core split the valve opening action into two independent steps with a sequential order, thereby avoiding the problem of leakage of atomized matrix during the opening transition stage and after closing of traditional single valves. The double barrier forms a closed-loop protection with high reliability.

[0029] When a user needs to open the valve, the applied external force first acts on the elastic sealing membrane. Under the action of the external force, the elastic sealing membrane undergoes elastic deformation, opening the passage for the atomized matrix. However, at this time, the valve core has not yet been subjected to external force and is still in the initial position of sealing the liquid guiding channel (the valve core is tightly fitted to the inner wall of the liquid guiding channel, and the main passage of the liquid guiding channel is still in the closed state). Only when the external force continues to act, driving the valve core to move axially along the liquid guiding channel (overcoming the preload of the elastic element), until the valve core disengages from the sealing area of ​​the liquid guiding channel, is the main passage of the liquid guiding channel truly opened. Throughout the opening process, the sequence of opening the membrane first and then moving the valve eliminates the leakage of the atomized matrix caused by pressure difference during the transition phase of valve core movement (when the channel is not fully open) in traditional valves.

[0030] During valve closure, the valve core moves in the opposite direction, returning to its initial sealing position and cutting off the main passage of the liquid channel. At this time, a small amount of atomized matrix may remain in the liquid channel. However, since the external force on the elastic sealing membrane has been simultaneously removed, its high elasticity drives the membrane to automatically return to its initial shape. The elastic sealing membrane intercepts the residual liquid in the liquid channel, blocking its path to the outside. Thus, even if the liquid inlet control mechanism is in an inclined, inverted, or vibrating environment, when the residual atomized matrix in the liquid channel moves towards the control end of the liquid channel under the influence of gravity and inertia, it will be firmly blocked by the elastic sealing membrane and cannot leak out, thereby solving the technical problem of residual atomized matrix leakage after traditional valve closure. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0032] Figure 1 This is an exploded view of an embodiment of the electronic atomizer of this application;

[0033] Figure 2 for Figure 1 A cross-sectional view of the embodiment shown;

[0034] Figure 3a for Figure 1 A perspective view of the liquid inlet control mechanism in the illustrated embodiment;

[0035] Figure 3b for Figure 3a Exploded view of the liquid inlet control mechanism shown;

[0036] Figure 3c for Figure 3aA cross-sectional view of the liquid inlet control mechanism shown.

[0037] Figure 4a for Figure 1 Top view of the fluid channel and elastic sealing membrane in the illustrated embodiment;

[0038] Figure 4b for Figure 4a The diagram shows the fluid channel and the elastic sealing membrane from a bottom view.

[0039] Figure 5a for Figure 1 A top view of the liquid-passing cylinder in the illustrated embodiment;

[0040] Figure 5b for Figure 5a The diagram shows the bottom view of the liquid transfer cylinder.

[0041] Explanation of icon numbers:

[0042] 10 Electronic atomizer 100 Liquid guide channel 110 Liquid passage end 120 Control end 200 Valve assembly 210 Liquid passing cylinder 211 Limiting block 212 Inner through port 213 Outer through port 214 Guide cylinder 220 Valve core 221 Plug portion 222 Rod portion 230 Elastic member 240 Elastic sealing membrane 241 Narrow opening 300 Liquid supply device 310 Liquid guide pipe 311 Liquid passing port 400 Atomization device 410 Atomization assembly 420 Upper shell 430 Base

[0043] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0044] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0045] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0046] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the term "and / or" throughout the text includes three solutions; taking A and / or B as an example, it includes technical solution A, technical solution B, and a technical solution that simultaneously satisfies A and B. Furthermore, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0047] Please combine Figures 1 to 5b This application discloses a liquid inlet control mechanism. The liquid inlet control mechanism is used to control the opening or closing of the liquid flow path. The liquid inlet control mechanism can be used in an electronic atomizer 10.

[0048] The liquid inlet control mechanism of this application includes a liquid guiding channel 100. The liquid guiding channel 100 is cylindrical and includes a liquid inlet end 110 and a control end 120.

[0049] The liquid inlet control mechanism of this application includes a valve assembly 200. The valve assembly 200 includes a liquid-passing cylinder 210, a valve core 220, an elastic element 230, and an elastic sealing membrane 240. The liquid-passing cylinder 210 is sleeved within the liquid-guiding channel 100, and its outer wall is sealed to the inner wall of the liquid-guiding channel 100. A limiting block 211 is provided inside the liquid-passing cylinder 210. The valve core 220 is movably disposed within the liquid-passing cylinder 210, and the limiting block 211 limits the movement of the valve core 220 toward the liquid-passing end 110 of the liquid inlet control mechanism 100. The elastic element 230 is disposed within the liquid-passing cylinder 210 and drives the valve core 220 to move toward the control end 120 of the liquid inlet control mechanism 100. One end of the valve core 220 near the control end 120 extends out of the liquid-passing cylinder 210 and, driven by the elastic element 230, seals the control end 120 of the liquid-guiding channel 100. The elastic sealing membrane 240 is cut with a narrow opening 241. The elastic sealing membrane 240 is further away from the liquid inlet 110 than the valve core 220, and the elastic sealing membrane 240 can close automatically.

[0050] In the liquid inlet control mechanism of this application, the elastic sealing membrane 240 and the valve core 220 split the valve opening action into two independent steps with a sequence, thereby avoiding the problem of leakage of atomized matrix during the opening transition stage and after closing of traditional single valves at the source. The double blocking forms a closed-loop protection with high reliability.

[0051] When the user needs to open the valve, the applied external force first acts on the elastic sealing membrane 240. Under the action of the external force, the elastic sealing membrane 240 undergoes elastic deformation, opening the passage for the atomized matrix to flow. However, at this time, the valve core 220 has not yet been subjected to external force and is still in the initial position of sealing the liquid guiding channel 100 (the valve core 220 is tightly attached to the inner wall of the liquid guiding channel 100, and the main passage of the liquid guiding channel 100 is still in the closed state). Only when the external force continues to act, driving the valve core 220 to move axially along the liquid guiding channel 100 (overcoming the pre-tightening force of the elastic element 230), until the valve core 220 disengages from the sealing area of ​​the liquid guiding channel 100, is the main passage of the liquid guiding channel 100 truly opened. Throughout the opening process, the sequence of "opening the membrane first, then moving the valve" eliminates the leakage of the atomized matrix caused by pressure difference during the transition phase of the valve core 220 movement (when the channel is not fully open) in traditional valves.

[0052] During valve closure, the valve core 220 will preferentially move in the reverse direction, returning to its initial sealing position and cutting off the main passage of the liquid guiding channel 100. At this time, a small amount of atomized matrix will still remain in the liquid guiding channel 100. However, since the external force of the elastic sealing membrane 240 has been simultaneously removed, its high elasticity will drive the membrane to automatically return to its initial shape. The elastic sealing membrane 240 will intercept the residual liquid in the liquid guiding channel 100, blocking its path to the outside. In this way, even if the liquid inlet control mechanism is in an inclined, inverted, or vibrating environment, when the residual atomized matrix in the liquid guiding channel 100 moves to the end of the liquid guiding channel 100 under the action of gravity and inertia, it will be firmly blocked by the elastic sealing membrane 240 and cannot seep out, thus solving the technical problem of residual atomized matrix leakage after the traditional valve is closed.

[0053] The following will mainly describe the specific structure of valve assembly 200.

[0054] As described above, the valve assembly 200 of this application includes a liquid-passing cylinder 210. The liquid-passing cylinder 210 has an inner port 212 and an outer port 213 at its two ends, respectively. The inner port 212 is closer to the liquid-passing end 110 than the outer port 213, and the area of ​​the inner port 212 is smaller than the area of ​​the outer port 213. The inner port 212 and the outer port 213 can be circular, elliptical, polygonal, racetrack-shaped, or irregularly shaped, etc., without specific limitations. A guide cylinder 214 extends from the wall of the inner port 212 away from the outer port 213 (i.e., towards the liquid-passing end 110), and the guide cylinder 214 guides the flow of the atomized matrix.

[0055] As mentioned above, the liquid-passing cylinder 210 has a limiting block 211 inside, which limits the movement of the valve core 220 toward the liquid-passing end 110. In some embodiments, a portion of the inner wall of the end of the liquid-passing cylinder 210 that has an inner opening 212 extends toward the outer opening 213 to form the limiting block 211. The limiting block 211 is arc-shaped. There are at least two limiting blocks 211, which are arranged circumferentially along the inner opening 212, and the ratio of the total length of the at least two limiting blocks 211 in the circumferential direction of the inner opening 212 to the circumference of the inner opening 212 is 0.2 to 0.5. Thus, the limiting block 211 can limit the movement of the valve core 220 without significantly obstructing the flow of the atomizing matrix between the inner opening 212 and the outer opening 213.

[0056] As described above, the valve assembly 200 of this application includes a valve core 220, which is movably disposed within a liquid-passing cylinder 210. The valve core 220 is capable of moving axially within the liquid-passing cylinder 210. In some embodiments, the valve core 220 includes a plug portion 221 and a rod portion 222 connected to each other. The rod portion 222 is closer to the liquid-passing end 110 than the plug portion 221, and the rod portion 222 is cylindrical with a substantially uniform diameter. A limiting block 211 is used to limit the plug portion 221, which is hemispherical. The planar portion of the plug portion 221 connects to the rod portion 222, and the curved portion of the plug portion 221 seals and connects to the control end 120. Thus, the contact area between the plug portion 221 and the control end 120 is relatively large, resulting in a better sealing connection. The plug portion 221 and the rod portion 222 can be integrally formed, thereby achieving a good connection between them.

[0057] The area of ​​the inner port 212 is smaller than the area of ​​the outer port 213, and the cross-sectional area of ​​the rod 222 is smaller than the area of ​​the planar portion of the plug 221. During the movement of the valve core 220, the rod 222 will pass through the guide tube 214. The rod 222 is relatively small and has a columnar shape with a basically uniform diameter, so that the atomizing matrix will not be blocked by the end of the rod 222 away from the plug 221, and can flow through the guide tube 214 relatively quickly.

[0058] As described above, the valve assembly 200 of this application includes an elastic element 230. The elastic element 230 is disposed inside the liquid-passing cylinder 210 and is used to drive the valve core 220 to move toward the control end 120. When the valve core 220 is pushed by an external force (overcoming the elastic force of the elastic element 230) to move toward the inner port 212 and open the closure to the control end 120, the atomizing matrix flows on the surface of the valve core 220.

[0059] In some embodiments, the elastic element 230 is a spring, sleeved around the rod portion 222 and the limiting block 211. One end of the elastic element 230 is connected to the planar portion of the plug portion 221, and the other end of the elastic element 230 is connected to the inner wall of the end of the liquid-passing cylinder 210 with the inner opening 212. In the above embodiment, the limiting block 211 is connected to the wall of the inner opening 212. Thus, while guiding and limiting the elastic deformation of the elastic element 230, the limiting block 211 forms a relatively wide clearance space with the inner wall of the liquid-passing cylinder 210.

[0060] As described above, the valve assembly 200 of this application includes an elastic sealing membrane 240, which has a slit 241 cut into it. The slit 241 can be cross-shaped or radially arranged, without specific limitation. The elastic sealing membrane 240 is made of an elastic material (e.g., silicone, plastic, and / or rubber), and can open under external force and automatically close after the external force is removed.

[0061] The elastic sealing membrane 240 and the valve core 220 are spaced apart. The axial distance between the elastic sealing membrane 240 and the valve core 220 in the liquid guiding channel 100 is greater than or equal to 0.5 mm and less than or equal to 2 mm. The liquid guiding channel 100, valve core 220, and elastic sealing membrane 240 of the electronic atomizer 10 are all miniature components. If the axial distance is designed to be too narrow (<0.5 mm), dimensional deviations during processing will directly cause the spacing between these components to be less than the design value after assembly, or even pre-contact, leading to jamming or sealing failure. Within the axial distance between the elastic sealing membrane 240 and the valve core 220, the liquid guiding channel 100 forms a transition volume. The atomizing matrix in this volume is a non-flowing residue and is the main source of leakage after closure. If the spacing is greater than 2 mm, this transition volume will increase with the distance. The more residue, the higher the probability that the atomizing matrix will break through the elastic sealing membrane 240 under tilted, inverted, or vibrating conditions. A spacing of ≤2mm can keep the transition volume at a low level, and combined with the tight closure of the elastic sealing membrane 240, it can prevent residual leakage after closure.

[0062] The liquid guiding channel 100 and the elastic sealing membrane 240 are integrally formed, which makes it less likely for the atomized matrix between the liquid guiding channel 100 and the elastic sealing membrane 240 to flow out, and the sealing connection between the two is better.

[0063] Please see Figure 1 and Figure 2This application discloses an electronic atomizer 10, which includes an atomizing device 400, a liquid supply device 300, and the aforementioned liquid inlet control mechanism. The atomizing device 400 includes an atomizing component 410, which atomizes the atomizing matrix into an aerosol. The liquid supply device 300 internally stores the atomizing matrix, and one end of the liquid supply device 300 is connected to a liquid guide tube 310. A liquid outlet 311 is provided at the end of the liquid guide tube 310 away from the liquid supply device 300. The liquid inlet control mechanism's liquid inlet end 110 is connected to and communicates with the atomizing component 410 of the atomizing device 400. The liquid guide tube 310 is used to push the valve core 220 toward the liquid inlet end 110 to open the communication between the atomizing device 400 and the liquid supply device 300.

[0064] In the aforementioned electronic atomizer 10, the atomizing device 400 further includes an upper shell 420 and a base 430, which together form a liquid storage chamber (not shown in the figure). The atomizing component 410 is disposed within the liquid storage chamber, and a liquid guiding channel 100 is formed by the base 430. The liquid guiding channel 100's liquid inlet 110 communicates with the liquid storage chamber. The liquid supply device 300 is located below the atomizing device 400, and the liquid guiding tube 310 abuts against the bottom end of the valve core 220. When the electronic atomizer 10 is inverted, the atomizing matrix in the liquid supply device 300 is subjected to gravity and flows into the atomizing device 400 through the gap between the valve core 220 and the liquid passing cylinder 210. The valve core 220 can abut against the limiting block 211, or it can be supported by the elastic member 230 and spaced apart from the limiting block 211, without specific limitation.

[0065] This application discloses another electronic atomizer, which includes an atomizing device, a liquid supply device, and the aforementioned liquid inlet control mechanism. One end of the atomizing device is connected to a liquid guide tube, and the end of the liquid guide tube away from the atomizing device has a liquid outlet. The liquid inlet control mechanism is connected to and communicates with the liquid supply device, and the liquid guide tube is used to push the valve core toward the liquid inlet to open the communication between the liquid supply device and the atomizing device.

[0066] The two electronic atomizers 10 of this application include the above-mentioned liquid inlet control mechanism, and therefore have all the beneficial effects of the above-mentioned liquid inlet control mechanism, which will not be described in detail here.

[0067] The above description is merely a preferred embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the inventive concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A liquid inlet control mechanism, characterized in that, The liquid inlet control mechanism includes a liquid guiding channel and a valve assembly. The liquid guiding channel includes a liquid inlet end and a control end. The valve assembly is sleeved within the liquid guiding channel and includes: A liquid-passing cylinder is fitted inside the liquid-guiding channel, and a limiting block is provided inside the liquid-passing cylinder; The valve core is movably disposed inside the liquid-passing cylinder, and the limiting block is used to limit the movement of the valve core toward the liquid-passing end; An elastic element, disposed within the liquid-passing cylinder, drives the valve core to move toward the control end. One end of the valve core near the control end extends outside the liquid-passing cylinder and, driven by the elastic element, seals the control end. An elastic sealing membrane with a narrow opening is sealed inside the control end. The elastic sealing membrane is further away from the liquid inlet end than the valve core, and the elastic sealing membrane can close automatically.

2. The liquid inlet control mechanism according to claim 1, characterized in that, The shortest distance between the elastic sealing membrane and the valve core in the axial direction of the liquid guiding channel is greater than or equal to 0.5 mm and less than or equal to 2 mm.

3. The liquid inlet control mechanism according to claim 1, characterized in that, The liquid-passing cylinder has an inner port and an outer port at both ends. The inner port is closer to the liquid-passing end than the outer port. The area of ​​the inner port is smaller than the area of ​​the outer port. A portion of the inner wall of the end of the liquid-passing cylinder with the inner port extends toward the outer port to form the limiting block.

4. The liquid inlet control mechanism according to claim 3, characterized in that, The limiting block is connected to the wall of the inner opening; the number of the limiting blocks is at least two, and the at least two limiting blocks are arranged along the circumference of the inner opening; the ratio of the total length of the at least two limiting blocks in the circumference of the inner opening to the circumference of the inner opening is 0.2 to 0.

5.

5. The liquid inlet control mechanism according to claim 3, characterized in that, The wall of the inner opening extends away from the outer opening to form a guide tube.

6. The liquid inlet control mechanism according to claim 3, characterized in that, The valve core includes a plug and a rod that are connected to each other. The rod is closer to the liquid inlet than the plug. The limiting block is used to limit the plug. The plug is hemispherical. The planar part of the plug is connected to the rod, and the curved part of the plug is sealed to the liquid channel.

7. The liquid inlet control mechanism according to claim 6, characterized in that, The elastic element is a spring, which is sleeved on the rod and the limiting block. One end of the elastic element is connected to the planar part of the plug, and the other end of the elastic element is connected to the inner wall of the end of the liquid-passing cylinder that has the inner opening.

8. The liquid inlet control mechanism according to claim 1, characterized in that, The fluid guiding channel is integrally formed with the elastic sealing membrane.

9. An electronic atomizer, characterized in that, The electronic atomizer includes: Atomizing device; A liquid supply device, one end of which is connected to a liquid guide tube, has a liquid outlet at the end of the liquid guide tube furthest from the liquid supply device; and The liquid inlet control mechanism according to any one of claims 1 to 8, wherein the liquid inlet end is connected to and communicates with the atomizing device, and the liquid guide tube is used to push the valve core toward the liquid inlet end to open the communication between the atomizing device and the liquid supply device.

10. An electronic atomizer, characterized in that, The electronic atomizer includes: An atomizing device is provided with a liquid guide tube at one end, and a liquid outlet is provided at the end of the liquid guide tube away from the atomizing device. Liquid supply device; and The liquid inlet control mechanism according to any one of claims 1 to 8, wherein the liquid inlet end is connected to and communicates with the liquid supply device, and the liquid guide tube is used to push the valve core toward the liquid inlet end to open the communication between the atomizing device and the liquid supply device.

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