Atomizer and electronic atomization device

Abstract

The application discloses an atomizer and an electronic atomization device, and the atomizer comprises a shell which is provided with an opening at one end, and is internally provided with a liquid storage cavity; the other end of the shell is provided with a mist outlet; an atomization assembly is accommodated in the liquid storage cavity, and a side wall of the atomization assembly is provided with a liquid passing hole; a base is inserted into the shell along the opening, and provides support for the atomization assembly; a sealing assembly comprises a sealing sleeve which is sleeved on the side wall of the atomization assembly and covers the liquid passing hole, and a pull rod which extends to the outside from the mist outlet; the sealing assembly further comprises a metal connecting sleeve which is pre-sleeved on one end of the pull rod and is embedded in the sealing sleeve; the sealing sleeve is provided with an avoiding hole for the pull rod to pass through; one end of the pull rod which is away from the metal connecting sleeve drives the sealing sleeve to move under the action of external force, so that the liquid passing hole is exposed to the liquid storage cavity; when the pull rod and the metal connecting sleeve are further separated under the action of force, the internal space of the metal connecting sleeve and the sealing sleeve forms an airflow channel for aerosol generated by the atomization assembly to flow to the mist outlet. The technical scheme of the application effectively improves the product yield.

Description

TECHNICAL FIELD

[0001] The present application relates to an atomizer and an electronic atomization device using the same. BACKGROUND

[0002] At present, the atomizing core of the pre-oil electronic cigarette atomizer mostly uses a wire-wrapped cotton atomizing core, that is, a heating wire is wound on a oil guide cotton to form an atomizing core, the atomizing core is assembled on a cover of the atomizer, an atomizing liquid is injected into an oil storage cavity, and then the cover and the oil storage cavity are assembled. However, during storage, transportation and sales of the atomizer, the atomizing liquid may leak and the aroma may be lost, which may seriously affect the product quality and the use of the consumer.

[0003] A patent No. 201910853989.3 discloses an atomizing device. One end of a sealing assembly is sleeved on an inner tube and the other end is sleeved on an inner sleeve. The inner tube and the inner sleeve are in communication, the sealing assembly can move along the axial direction of the inner tube and has a first position and a second position. Before use, the sealing assembly is in the first position, and the oil guide port is blocked by the sealing assembly, effectively preventing the atomizing liquid in the liquid storage cavity from entering the atomizing cavity through the oil guide port. When the sealing assembly is in the second position, the oil guide port is opened, and the atomizing liquid can enter the atomizing core to generate smoke for the user to smoke. This effectively prevents the atomizing liquid from leaking through the oil guide port during transportation and storage of the electronic cigarette product, and also prevents external air from entering the oil storage cavity through the oil guide port and reacting with the atomizing liquid, affecting the aroma of the electronic cigarette.

[0004] However, the pull rod and the sealing sleeve in the comparative document are integrally formed, which is difficult to make by using a silica gel mold, the wall thickness of the connection position is relatively thin, resulting in a high product failure rate, and there are silica gel burrs when the pull rod is pulled off, which may cause condensate. SUMMARY

[0005] The main purpose of the present application is to provide an atomizer which effectively improves the above problems by separating the pull rod and the sealing assembly, making the silica gel mold easier to manufacture, and the connection position of the pull rod and the sealing assembly more stable, resulting in a higher product yield.

[0006] To achieve the above purpose, the present application provides an atomizer, which comprises:

[0007] a housing having an open end and an internal liquid storage cavity, and an outlet for the mist at the other end;

[0008] an atomizing assembly accommodated in the liquid storage cavity and having a liquid passage in the side wall;

[0009] a base inserted into the housing along the opening and providing support for the atomizing assembly;

[0010] The sealing assembly comprises a sealing sleeve sleeved on the side wall of the atomization assembly and covering the liquid passage, and a pull rod protruding outside from the mist outlet;

[0011] The sealing assembly further comprises a metal connecting sleeve pre-sleeved on one end of the pull rod and embedded in the sealing sleeve, the sealing sleeve is provided with an avoiding hole for the pull rod to pass through, and the end of the pull rod away from the metal connecting sleeve drives the sealing sleeve to move under the action of external force, so that the liquid passage is exposed to the liquid storage cavity; when the pull rod and the metal connecting sleeve are further separated under the action of force, the internal space of the metal connecting sleeve and the sealing sleeve forms an airflow channel for the aerosol generated by the atomization assembly to flow to the mist outlet.

[0012] Optionally, the metal connecting sleeve comprises a limiting portion and a connecting portion, the connecting portion is pre-inserted into the avoiding hole, and the limiting portion is located in the sealing sleeve and abuts against the inner side edge of the avoiding hole.

[0013] Optionally, the limiting portion and the connecting portion are both in tubular shape, the pull rod comprises a flexible connecting head, the flexible connecting head is interference-fitted in the inner space of the tube of the limiting portion or the connecting portion, and can be separated from the inner space of the tube of the limiting portion or the connecting portion under the action of a first external force, the first external force is greater than the friction force between the sealing sleeve and the outer wall of the atomization assembly.

[0014] Optionally, the inner diameter of the inner space of the tube of the limiting portion is greater than the inner diameter of the inner space of the tube of the connecting portion, and the intersection of the inner spaces of the tubes of the limiting portion and the connecting portion is a transition inclined surface, and the flexible connecting head is interference-fitted in the inner space of the tube of the limiting portion.

[0015] Optionally, the atomization assembly comprises an atomization tube and an atomization core accommodated in the atomization tube, one end of the atomization tube is inserted into the base, the other end protrudes into the liquid storage cavity and is provided with the liquid passage, and the sealing sleeve is sleeved on the side wall of the atomization tube exposed in the liquid storage cavity; the atomization core and the side end face of the atomization tube away from the base are arranged in a spaced manner to form an accommodation space for accommodating the limiting portion.

[0016] Optionally, the limiting portion is accommodated in the accommodation space and arranged in a spaced manner with the inner wall of the accommodation space.

[0017] Optionally, the limiting portion at least partially protrudes outside the atomization tube to limit the sleeving of the sealing sleeve on the atomization tube.

[0018] Optionally, the atomizer further comprises an air guide pipe, one end of the air guide pipe is inserted into the mist outlet, the other end is suspended in the liquid storage cavity, and the end of the sealing sleeve away from the atomization assembly is sleeved on the air guide pipe; when the connecting portion of the pull rod contacts with the end face of the air guide pipe under the action of external force, the connecting portion is abutted and limited.

[0019] Optionally, the inner wall of the sealing sleeve is provided with at least two sealing ribs, when the sealing sleeve covers the liquid passage, at least one of the two sealing ribs seals the side wall of the atomizing tube between the liquid passage and the base; when the sealing sleeve abuts against the end surface of the air guide tube at the connecting portion, one of the two sealing ribs is located at the end surface of the atomizing tube facing the mist outlet.

[0020] And / or, the outer diameter of the limiting portion is 0.5-1.5mm larger than the hole diameter of the avoiding hole.

[0021] In a second aspect, the application further provides an electronic atomization device, which comprises a power supply device and the atomizer as described above, the atomizer is detachably installed on the power supply device, and the power supply device is used for supplying power to the atomizer.

[0022] The atomizer of the application effectively improves the above problems by separating the pull rod and the sealing assembly and connecting them through the metal connecting sleeve, and the production yield is high because the connection position of the pull rod and the sealing assembly is stable. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the application, and for those skilled in the art, other drawings can be obtained from the structures shown in the drawings without creative labor.

[0024] Figure 1 It is a sectional view of the connecting structure of the atomizer of the application, in which the pull rod pulls the sealing sleeve to expose the liquid passage to the liquid storage cavity;

[0025] Figure 2 It is a sectional view of the connecting structure of the atomizer of the application, in which the sealing sleeve covers the liquid passage;

[0026] Figure 3 It is an exploded view of the connecting structure of the atomizer of the application.

[0027] Explanation of reference signs:

[0028] Reference numerals Names Reference numerals Names 100 Atomizer 71 Pull rod 10 Housing 711 Flexible connector 11 Liquid storage cavity 72 Sealing sleeve 12 Mist outlet 721 Avoidance hole 30 Atomization assembly 722 Sealing ridge 31 Atomization tube 73 Metal connector sleeve 311 Liquid passage 731 Limiting portion 312 Accommodation space 732 Connecting portion 32 Atomization core 733 Airflow channel 50 Base 90 Air guide tube 70 Sealing assembly

[0029] The implementation, functional features and advantages of the application will be further described with reference to the embodiments and the drawings. DETAILED DESCRIPTION

[0030] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those of ordinary skill in the art without creative efforts on the basis of the present application fall within the protection scope of the present application.

[0031] It should be noted that all the direction indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the direction indications also change accordingly.

[0032] In addition, the descriptions involving “first”, “second” and the like in the present application are only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features defined with “first”, “second” can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of those of ordinary skill in the art, and when the combination of technical solutions contradicts each other or cannot be realized, it should be considered that the combination of technical solutions does not exist, nor within the protection scope of the present application.

[0033] In the present application, unless otherwise explicitly specified and limited, the terms “connection”, “fixation” and the like should be understood in a broad sense, for example, “fixation” can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through intermediate medium; can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0034] Reference Figures 1 to 3The present application provides an atomizer 100, comprising a shell 10, one end of which is provided with an opening and an internal liquid storage cavity 11 is formed therein, and the other end is provided with a mist outlet 12; an atomization assembly 30 is accommodated in the liquid storage cavity 11, and the side wall is provided with a liquid passing hole 311; a base 50 is inserted into the shell 10 along the opening and provides support for the atomization assembly 30; a sealing assembly 70 comprises a sealing sleeve 72 sleeved on the side wall of the atomization assembly 30 and covering the liquid passing hole 311, and a pull rod 71 extending to the outside from the mist outlet 12; the sealing assembly 70 further comprises a metal connecting sleeve 73 pre-sleeved on one end of the pull rod 71 and embedded in the sealing sleeve 72, the sealing sleeve 72 is provided with an avoiding hole 721 for the pull rod 71 to pass through, and the end of the pull rod 71 away from the metal connecting sleeve 73 drives the sealing sleeve 72 to move under the action of external force, so that the liquid passing hole 311 is exposed to the liquid storage cavity 11; when the pull rod 71 and the metal connecting sleeve 73 are further separated under stress, the internal space of the metal connecting sleeve 73 and the sealing sleeve 72 forms an airflow channel 733 for the aerosol generated by the atomization assembly 30 to flow to the mist outlet 12. During installation, the sealing sleeve 72 wraps the liquid passing hole 311 provided on the side wall of the atomization assembly 30, so that the atomization gas circuit inside the atomization assembly 30 is completely isolated from the liquid storage cavity 11, and a closed space is formed in the liquid storage cavity 11. Therefore, during transportation, the solution in the liquid storage cavity 11 will not leak to the outside, causing pollution and damage to external objects. The atomizer 100 forms different types of electronic atomization equipment according to different pre-stored solutions in the liquid storage cavity 11. For example, the solution can be selected but is not limited to: mosquito repellent liquid, fragrance liquid, water, smoke liquid, nutrient liquid, medicinal liquid, etc. Thus, the electronic atomization equipment corresponds to form a mosquito repellent device, an aromatherapy device, a humidifier, an electronic cigarette, a nutrient atomization device, a medical atomization device, etc., which are not limited here. In this embodiment, the electronic cigarette is taken as an example, and the electronic atomization equipment is an electronic cigarette.

[0035] Further, as Figures 1 to 3As shown, in the embodiment of the present application, the pull rod 71 has a metal connecting sleeve 73 at one end, and the metal connecting sleeve 73 is embedded in the sealing sleeve 72. When the pull rod 71 is subjected to external force, the metal connecting sleeve 73 and the sealing sleeve 72 are moved, and the liquid passing hole 311 covered by the sealing sleeve 72 is exposed in the liquid storage cavity 11. Therefore, the solution in the liquid storage cavity 11 can flow into the inside of the atomization assembly 30 through the liquid passing hole 311, be atomized into aerosol, and then be discharged to the outside through the mist outlet 12. The metal connecting sleeve 73 can be made of copper, steel, zinc alloy or other metal materials, and the sealing sleeve 72 can be made of flexible silica gel, rubber or other materials. In this embodiment, the sealing sleeve 72 is preferably made of non-toxic silica gel, and the metal connecting sleeve 73 is made of rigid material. By separating the pull rod 71 and the sealing sleeve 72, and then connecting them through the metal connecting sleeve 73, the sealing sleeve 72 has a simple shape and does not need to be designed as a thin wall, which effectively facilitates the processing and production of silica gel molds and improves product yield. At the same time, after the pull rod 71 is pulled out, the internal space of the metal connecting sleeve 73 and the sealing sleeve 72 forms an airflow channel 733 for the aerosol generated by the atomization assembly 30 to flow to the mist outlet 12. There is no silica gel burr, so during use, the atomized aerosol will not accumulate condensate at the burr. When suction is performed again, the user will not feel uncomfortable when inhaling the condensate.

[0036] Specifically, as Figure 1 As shown, in the embodiment of the present application, in this embodiment, the metal connecting sleeve 73 includes a limiting portion 731 and a connecting portion 732. The limiting portion 731 can be a protrusion or a flange protruding from the side wall of the connecting portion 732. The connecting portion 732 is used to be pre-inserted into the avoiding hole 721 and elastically interference-fitted with the inner wall of the avoiding hole 721. The outer diameter of the limiting portion 731 is greater than the hole diameter of the avoiding hole 721 and less than the diameter of the inner wall of the sealing sleeve 72. Therefore, during installation, only the connecting portion 732 of the metal connecting sleeve 73 needs to be inserted into the avoiding hole 721 through the opening of the sealing sleeve 72. When the limiting portion 731 abuts against the inner wall of the sealing sleeve 72, the pre-assembly is completed. It can be understood that in actual application, it is not limited to the above-mentioned manual insertion assembly. For example, in other embodiments of the present application, the metal connecting sleeve 73 and the sealing sleeve 72 can be integrally formed by in-mold injection, thereby reducing manual assembly.

[0037] Specifically, as Figure 1As shown in the embodiments of the present application, the limiting portion 731 and the connecting portion 732 are integrally formed by die casting or stretch forming of steel or zinc alloy and are in the shape of concentric tubes. The pull rod 71 comprises a flexible connecting head 711 and a connecting rod. The flexible connecting head 711 and the connecting rod can be integrally formed of silica gel material or can be integrally formed by in-mold injection of a flexible connecting head film made of hard material and silica gel material. In the embodiments of the present application, the flexible connecting head is preferably integrally formed of silica gel material. The flexible connecting head is clamped in the inner space of the tube of the limiting portion 731 or the connecting portion 732 and can be separated from the inner space of the tube of the limiting portion 731 or the connecting portion 732 under the action of a first external force and then pulled out from the mist outlet 12. When the flexible connecting head is pulled out, the inner space of the tube of the connecting portion 732 and the limiting portion 731 forms an airflow channel 733 that connects the mist outlet 12 and the inner space of the atomization assembly 30. In order to prevent the pull rod 71 from being directly pulled out from the inner space of the tube of the connecting portion 732 or the limiting portion 731 while the sealing sleeve 72 is not moved, in the embodiments of the present application, the first external force is greater than the frictional force between the sealing sleeve 72 and the outer wall of the atomization assembly 30. Therefore, when the user applies a force to the sealing rod that is smaller than the frictional force between the sealing sleeve 72 and the outer wall of the atomization assembly 30, the sealing sleeve 72 is first moved to expose the through hole 311 in the liquid storage cavity 11. When a further force is applied, the pull rod 71 is separated from the connecting portion 732 or the limiting portion 731.

[0038] Further, as shown in Figure 1 and Figure 2 In the embodiments of the present application, in order to ensure that the sealing sleeve 72 is first pulled when a force is applied to the pull rod 71, the inner wall of the sealing sleeve 72 is provided with a sealing protrusion 722. When the sealing sleeve 72 is sleeved on the side wall of the atomization assembly 30, the sealing protrusion 722 is sleeved on the outer peripheral surface of the atomization assembly 30, thereby preventing the entire surface of the sealing sleeve 72 from being in contact with the outer wall of the atomization assembly 30, resulting in a large frictional force and a phenomenon that the pull rod 71 is separated from the connecting portion 732 or the limiting portion 731 before the sealing sleeve 72 is pulled to the preset position.

[0039] At the same time, as shown in Figure 2 In the embodiments of the present application, in order to ensure the sealing effect, when the sealing sleeve 72 is located at the position covering the through hole 311, the sealing protrusion 722 is sealed to the side wall of the atomization tube 31 between the through hole 311 and the base 50, thereby ensuring that the solution in the liquid storage cavity 11 cannot enter the interior of the atomization assembly 30 and preventing the phenomenon of liquid leakage during transportation and storage.

[0040] Specifically, as shown in the drawings, in the embodiment of the present application, the inner diameter of the pipe space of the limiting portion 731 is greater than the inner diameter of the pipe space of the connecting portion 732, and the intersection of the two pipe spaces is a transition of an inclined surface. The flexible connector 711 is interference-fitted in the pipe space of the limiting portion 731. In this embodiment, the flexible connector 711 is pre-installed in the pipe space of the limiting portion 731, and the inner diameter of the pipe space of the limiting portion 731 is greater than the inner diameter of the pipe space of the connecting portion 732. Therefore, the friction of the flexible connector 711 in the pipe space of the limiting portion 731 is less than the friction of the pipe space of the connecting portion 732. Therefore, a greater force is required to pull out the flexible connector 711 from the metal connecting sleeve 73. Meanwhile, the intersection of the two pipe spaces is a transition of an inclined surface, which plays a guiding role and prevents the flexible connector 711 from being stuck in the pipe space of the limiting portion 731 and being unable to be pulled out.

[0041] Specifically, the outer diameter of the limiting portion 731 is greater than the hole diameter of the avoiding hole 721 by 0.5-1.5 mm. Thus, the limiting portion 731 is prevented from being inserted into the avoiding hole 721. In this embodiment, 0.5 mm, 0.75 mm, 1 mm, 1.5 mm, etc. can be selected, which are not limited here.

[0042] Specifically, as shown in the drawings, Figure 1 In combination with Figure 3 As shown in the drawings, in the embodiment of the present application, the atomization assembly 30 includes an atomization tube 31 and an atomization core 32 accommodated in the atomization tube 31. The atomization tube 31 is inserted into the base 50 at one end and extends into the liquid storage cavity 11 at the other end, and is provided with the liquid passing hole 311. The sealing sleeve 72 is sleeved on the side wall of the atomization tube 31 exposed in the liquid storage cavity 11. The atomization core 32 is arranged in a spaced manner with the side end face of the atomization tube 31 away from the base 50, forming an accommodation space 312 for accommodating the limiting portion 731. Here, in this embodiment, the upper end of the atomization tube 31 is reserved with a space for accommodating the limiting portion 731, so as to facilitate the positioning and installation of the sealing sleeve 72 on the atomization tube 31. In order to facilitate installation, the limiting portion 731 is in clearance fit with the atomization tube 31, so that the outer wall of the limiting portion 731 is arranged in a spaced manner with the inner wall of the atomization tube 31, avoiding hard contact.

[0043] Further, as shown in the drawings, Figure 1As shown, in the embodiment of the present application, since the sealing sleeve 72 needs to be tightly sleeved on the side wall of the atomizing pipe 31, a large force is usually applied to sleeve the sealing sleeve 72 on the atomizing pipe 31 during installation, and the sealing sleeve 72 is made of silica gel material, the wall thickness of the atomizing pipe 31 is relatively thin, and the upper end surface of the sealing sleeve 72 is easily scratched. Therefore, in the embodiment, the limiting part 731 at least partially protrudes outside the atomizing pipe 31 to limit the sleeve of the sealing sleeve 72 on the atomizing pipe 31, so that the upper end surface of the sealing sleeve 72 is not in contact with the top end surface of the atomizing pipe 31, and the scratching phenomenon is avoided.

[0044] Specifically, the atomizing core includes a heating element and a liquid absorbing element, and the liquid absorbing element is cotton material or porous ceramic. In the embodiment, hard porous ceramic is preferably used as the liquid absorbing element. The porous ceramic has a gas passing hole formed in the middle and a heating element sintered therein. When the atomizing core is installed in the atomizing pipe, one end of the porous ceramic is located in the accommodating space for supporting the limiting part. When the limiting part is inserted into the atomizing pipe, the atomizing core inside the atomizing pipe is prevented from being extruded to cause deformation, thereby avoiding the generation of product defects.

[0045] Further, as shown in the drawings, Figures 1 to 3 In the embodiment of the present application, the atomizer 100 further includes a gas guide pipe 90, one end of the gas guide pipe 90 is inserted into the mist outlet 12, the other end is suspended in the liquid storage cavity 11, and one end of the sealing sleeve 72 away from the atomizing assembly 30 is sleeved on the gas guide pipe 90. When the connecting part 732 of the pull rod 71 is in contact with the end surface of the gas guide pipe 90 under the action of external force, it is abutted and limited. In the embodiment, the gas guide pipe 90 is made of metal material, specifically including zinc alloy or steel. By providing the gas guide pipe 90, the metal connecting sleeve 73 is effectively positioned, and the phenomenon that the sealing sleeve 72 is pulled too much to cause the sealing sleeve 72 to separate from the atomizing pipe 31 is avoided. It can be understood that in actual application, it is not limited to the above-mentioned embodiment of using the additional gas guide pipe 90. For example, in other embodiments of the present application, the gas guide pipe 90 can also be integrally formed by protruding the inner wall of the shell 10 around the mist outlet 12. In the embodiment, the gas guide pipe 90 is made of metal material, which further prevents condensate from being generated, and the wall thickness of the gas guide pipe 90 made of metal material is relatively thin, for example, the wall thickness of the gas guide pipe 90 can be 0.2mm-0.5mm. When the shell 10 is integrally injection molded, the wall thickness is usually 1-1.5mm and the surface is easy to have burrs, which causes the product to have a higher defective rate when the friction force changes during pulling of the sealing sleeve 72.

[0046] Specifically, as shown in the drawings, Figure 1As shown, in the embodiment of the present application, the sealing ribs 722 protruding from the inner wall of the sealing sleeve 72 are multiple. In addition to the sealing rib 722 sealing the lower end of the liquid passage 311, the sealing sleeve 72 also includes two sealing ribs 722 when the sealing sleeve 72 is in abutment with the end face of the air guide pipe 90 at the connecting portion 732. One of the two sealing ribs 722 is located at the end face of the atomizing pipe 31 facing the mist outlet 12. Thus, the phenomenon of the sealing sleeve 72 sliding off is prevented. In addition, according to the size of the product, multiple sealing ribs 722 can also be added to improve the sealing performance of the product, which is not limited here.

[0047] The present application also provides an electronic atomization device, which comprises a power supply device for supplying power to the atomization assembly 30 of the atomizer 100, and the specific structure of the atomizer 100 is referred to the above-mentioned embodiments. Since the electronic atomization device adopts all the technical solutions of the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here.

[0048] The above-mentioned is only the preferred embodiment of the present application, which does not limit the patent scope of the present application. Any equivalent structural transformation made by using the content of the present application specification and drawings, or direct / indirect application in other related technical fields under the inventive concept of the present application is included in the patent protection scope of the present application.

Claims

1. An atomizer, comprising: The outer shell has an opening at one end, with a liquid storage chamber inside, and a mist outlet at the other end. The atomizing component is housed within the liquid storage chamber, and its sidewall is provided with liquid passage holes; The base is inserted into the housing along the opening and provides support for the atomizing assembly; The sealing assembly includes a sealing sleeve fitted onto the side wall of the atomizing assembly and covering the liquid passage hole, and a pull rod extending from the mist outlet to the outside. The sealing assembly is characterized in that it further includes a metal connecting sleeve pre-fitted to one end of the pull rod and embedded in the sealing sleeve. The sealing sleeve is provided with a clearance hole for the pull rod to pass through. Under the action of external force, the end of the pull rod away from the metal connecting sleeve drives the sealing sleeve to move so that the liquid passage hole is exposed in the liquid storage cavity. When the pull rod and the metal connecting sleeve are further separated by force, the internal space of the metal connecting sleeve and the sealing sleeve forms an airflow channel for the aerosol generated by the atomizing assembly to flow to the mist outlet. The metal connecting sleeve includes a limiting part and a connecting part. The connecting part is pre-inserted into the clearance hole. The limiting part is located inside the sealing sleeve and abuts against the inner edge of the clearance hole for limiting. Both the limiting part and the connecting part are tubular. The inner diameter of the tubular space of the limiting part is larger than the inner diameter of the tubular space of the connecting part, and the junction of the two tubular spaces is an inclined surface transition. The pull rod includes a flexible connector. The flexible connector is interference-fitted into the tubular space of the limiting part and can be disengaged from the tubular space of the limiting part under the action of a first external force. The first external force is greater than the frictional force between the sealing sleeve and the outer wall of the atomizing component. The atomizer also includes an air guide tube, one end of which is inserted into the mist outlet and the other end is suspended in the liquid storage chamber. The end of the sealing sleeve facing away from the atomizing component is sleeved on the air guide tube. When the pull rod is pulled by an external force to contact the end face of the air guide tube, it abuts and limits the movement.

2. The atomizer as described in claim 1, characterized in that, The atomizing assembly includes an atomizing tube and an atomizing core housed within the atomizing tube. One end of the atomizing tube is inserted into the base, and the other end extends into the liquid storage chamber, with the liquid passage hole provided. The sealing sleeve is fitted onto the side wall of the atomizing tube exposed within the liquid storage chamber. The atomizing core and the atomizing tube are spaced apart on the side facing away from the base, forming a receiving space for accommodating the limiting portion.

3. The atomizer as described in claim 2, characterized in that, The limiting part is housed within the accommodating space and is spaced apart from the inner wall of the accommodating space.

4. The atomizer as described in claim 3, characterized in that, The limiting portion protrudes at least partially from the atomizing tube to limit the sealing sleeve from being fitted onto the atomizing tube.

5. The atomizer as described in claim 1, characterized in that, The inner wall of the sealing sleeve is provided with at least two sealing protrusions. When the sealing sleeve is in the position of covering the liquid passage hole, at least one of the two sealing protrusions seals the side wall of the atomizing tube between the liquid passage hole and the base. When the sealing sleeve is in the position of the connecting part abutting against the end face of the air guide tube, one of the two sealing protrusions is located on the end face of the atomizing tube facing the mist outlet. And / or, the outer diameter of the limiting part is 0.5-1.5 mm larger than the diameter of the clearance hole.

6. An electronic atomizing device, characterized in that, It includes a power supply device and an atomizer as described in any one of claims 1-5, wherein the atomizer is detachably mounted to the power supply device, and the power supply device is used to supply power to the atomizer.

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