Sealing element and electronic atomization device

Abstract

The utility model discloses a sealing element and an electronic atomization device, the sealing element is provided with a first contact part and a second contact part which are arranged at an interval along the length direction, and a limiting structure which is positioned outside an area defined by the first contact part and the second contact part; when the limiting structure is configured to be located on part of the inner wall of the airflow channel, the first contact part and the second contact part are in sealing contact with the inner wall of the airflow channel, so that a sealing cavity is formed in the portion, located between the first contact part and the second contact part, of the atomization channel in the airflow channel. According to the technical scheme, the limiting structure can be matched with part of the inner wall of the airflow channel to ensure that the first contact part and the second contact part are accurately matched with the airflow channel, so that the problem that a sealing cavity cannot be formed due to the fact that the sealing piece is not inserted in place is solved; by means of the mode, positioning matching of the sealing piece and the atomizer can be rapidly achieved so as to seal the airflow channel, and operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic atomization, and in particular to a sealing component and an electronic atomization device. Background Art

[0002] In the electronic atomization device, an air flow channel and a storage bin are provided inside, wherein the air flow channel includes an atomization channel with an atomization core installed, the atomization core is in liquid communication with the liquid storage bin, the atomization core is used to absorb the liquid in the liquid storage cavity and heat it to form an aerosol and then release it in the atomization channel, and as the user draws air, the air flows through the air flow channel to the outlet end to be inhaled by the user. Since the atomization core is in liquid communication with the liquid storage bin, during shipping or use, it is easy to change due to external pressure, temperature and other environmental factors, causing the pressure in the liquid storage bin to increase, and the liquid in the liquid storage cavity overflows from the atomization core into the atomization channel of the air flow channel, and even flows into the power supply part of the electronic atomization device, causing problems such as short circuit and failure of the electrical components of the electronic atomization device.

[0003] In order to solve the above problems, in the related art, the atomizer core is moved relative to the liquid storage tank of the atomizer body to control the opening or closing of the communication opening between the liquid storage tank and the atomizer core, so as to isolate the atomizer core from the liquid storage cavity when in use, and connect the atomizer core and the liquid storage tank when in use. There is also a sealing plug method to seal the openings at both ends of the airflow channel. For the former, since the openings of the liquid storage tank and the atomizer core are difficult to observe from the outside, it is difficult to determine whether they are closed during movement, and positioning is inconvenient. In addition, due to the relative movement between the structural components of this structure, the sealing effect is poor. For the latter, two sealing plugs are required to seal the airway opening separately, which is inconvenient to operate. Utility Model Content

[0004] The main purpose of the utility model is to provide a sealing member, aiming to solve the problems of difficult positioning and sealing and inconvenient operation in the sealing and leak-proof structure mode existing in the related art.

[0005] To achieve the above-mentioned purpose, the utility model provides a sealing member, wherein the sealing member comprises a first contact portion and a second contact portion which are arranged at intervals along the length direction, and a limiting structure located outside the area defined by the first contact portion and the second contact portion;

[0006] Wherein, when the limiting structure is configured to be positioned on a portion of the inner wall outside the atomization channel of the airflow channel, the first contact portion and the second contact portion are respectively in sealing contact with the inner wall of the airflow channel, so that the airflow channel forms a sealed cavity in the atomization channel between the first contact portion and the second contact portion.

[0007] In some embodiments of the present utility model, the sealing member is provided with a gripping section extending out of the airflow channel and an inserting section extending into the airflow channel;

[0008] The limiting structure, the first contact portion, and the second contact portion are all arranged at intervals on the insertion section, and the first contact portion is closer to the holding section than the second contact portion.

[0009] In some embodiments of the present utility model, the limiting structure includes a first limiting portion, and the first limiting portion is arranged on a sealing member on the outer peripheral wall of one end of the insertion section close to the gripping section.

[0010] In some embodiments of the present invention, the limiting structure includes a second limiting portion, and the second limiting portion is located at an end of the insertion section away from the holding section.

[0011] In some embodiments of the present invention, the cross-sectional dimensions of the insertion section decrease gradually from one end close to the gripping section to the other end.

[0012] The utility model also provides an electronic atomization device, which includes an atomizer and the above-mentioned sealing member, wherein:

[0013] The atomizer is provided with an air flow channel and a liquid storage tank. In the extension direction of the air flow channel, the inner wall of the air flow channel is provided with a first sealing portion, a second sealing portion and a matching structure at intervals, and the matching structure is located on the inner wall of the air flow channel outside the area defined by the first sealing portion and the second sealing portion. The atomizer is further provided with an atomizer core in the air flow channel, and the atomizer core is located between the first sealing portion and the second portion and is in liquid communication with the liquid storage tank.

[0014] The sealing member is detachably connected to the airflow channel. When the limiting structure is engaged with the matching structure, the first sealing portion is in sealing contact with the first contact portion, and the second sealing portion is in sealing contact with the second contact portion.

[0015] In some embodiments of the utility model, the limiting structure includes a first limiting portion, which is protruding from the outer peripheral wall of the seal; the matching structure includes a matching groove adapted to the first limiting portion, which is recessed on the inner wall surface of the airflow channel and arranged close to the air outlet of the airflow channel, and the matching groove extends in the direction of the air outlet of the airflow channel and is arranged through it.

[0016] In some embodiments of the present utility model, the limiting structure includes a second limiting portion, and the second limiting portion is located at one end of the sealing member; the matching structure includes a matching portion, and the matching portion is provided with an air inlet of the airflow channel;

[0017] The second limiting portion may abut against the matching portion.

[0018] In some embodiments of the present invention, the first sealing portion is located between the air outlet and the second sealing portion; the atomizer is further provided with a storage cavity communicating with the air flow channel between the air inlet and the second sealing portion;

[0019] When the second limiting portion abuts against the matching portion, the second limiting portion blocks the air inlet.

[0020] In some embodiments of the utility model, the atomizer includes: an oil cup, one end of which is provided with the air outlet, and a vent pipe extending from the air outlet to the other end is provided in the oil cup; an atomizer assembly is arranged in the oil cup and is sealed and connected to the vent pipe through a first seal;

[0021] A base is connected to the other end of the oil cup and is sealed with the oil cup and the other end of the atomizer assembly through a second seal, and a storage cavity is formed between the base and the second seal; wherein the inner wall of the oil cup and the ventilation pipe, the first seal, the atomizer assembly and the second seal enclose the liquid storage tank; the air flow channel passes through the ventilation pipe, the first seal, the atomizer assembly, the second seal and the base; the matching groove is formed on the inner wall of the ventilation pipe, the first sealing part is formed on the inner wall of the first seal, the atomization channel is formed in the atomizer assembly, the second sealing part is formed on the inner wall of the second seal, and the matching part is formed on the base.

[0022] The technical solution of the utility model, the seal has a first contact portion, a second contact portion and a limiting structure outside the area defined by the first contact portion and the second contact portion arranged at intervals along the length direction; when the limiting structure is configured to be positioned at a portion of the inner wall outside the atomizing channel of the airflow channel, the first contact portion and the second contact portion are respectively in sealing contact with the inner wall of the airflow channel, so that the atomizing channel between the first contact portion and the second contact portion of the airflow channel forms a sealed cavity. In this way, the limiting structure is positioned in cooperation with a portion of the inner wall of the airflow channel to ensure that the atomizing channel between the first contact portion and the second contact portion forms a sealed cavity, thereby avoiding the problem of leakage caused by the inability to seal the atomizing channel due to the seal being not plugged in place. At the same time, when the user extends the seal into the atomizer, it only needs to extend to the portion of the inner wall outside the atomizing channel of the airflow channel to cooperate with the limiting structure, so as to facilitate the user to use the seal. This method can quickly realize the positioning and cooperation of the seal with the atomizer to seal the airflow channel, and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0024] Figure 1 This is a schematic structural diagram of an embodiment of a sealing member of the utility model;

[0025] Figure 2 This is a cross-sectional view of an embodiment of the electronic atomization device of the utility model;

[0026] Figure 3 for Figure 2 Schematic diagram of the structure of the atomizer;

[0027] Figure 4 for Figure 3 sectional view of .

[0028] Description of Figure Numbers:

[0029] 1. Sealing member; 11. First contact portion; 12. Second contact portion; 13. Position limiting structure; 131. First position limiting portion; 132. Second position limiting portion; 14. Holding section; 141. Annular groove; 15. Insertion section;

[0030] 2. Atomizer; 21. Air flow channel; 211. Air outlet; 212. Air inlet; 22. Sealing cavity; 23. First sealing part; 24. Second sealing part; 25. Matching structure; 251. Matching groove; 252. Matching part; 26. Storage cavity; 27. Oil cup; 271. Ventilation pipe; 28. Atomizer assembly; 281. Atomizer bracket; 282. Atomizer core; 283. Lower liquid port; 29. ​​First sealing member; 2a. Base; 2b. Second sealing member; 2c. Liquid storage tank.

[0031] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0034] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0035] Please also read Figure 1 to Figure 2 The utility model proposes a sealing member 1, which is configured to be detachably connected to the air flow channel 21 of the atomizer 2, and the sealing member 1 has a first contact portion 11 and a second contact portion 12 arranged at intervals along the length direction, and a limiting structure 13 located outside the area defined by the first contact portion 11 and the second contact portion 12; wherein, when the limiting structure 13 is configured to be positioned on a portion of the inner wall outside the atomization channel of the air flow channel 21, the first contact portion 11 and the second contact portion 12 are respectively in sealing contact with the inner wall of the air flow channel 21, so that the atomization channel between the first contact portion 11 and the second contact portion 12 forms a sealed cavity 22.

[0036] It should be noted that the seal 1 has the first contact portion 11 and the second contact portion 12 arranged at intervals along the length direction, and the limiting structure 13 located outside the area defined by the first contact portion 11 and the second contact portion 12 means that: in the length direction of the seal 1, the limiting structure 13 is arranged at intervals with one of the first contact portion 11 and the second contact portion 12 on the seal 1, and is located on the side of one of them away from the other. The first contact portion 11 and the second contact portion 12 are formed in the local area of ​​the seal 1 that contacts the inner wall of the airflow channel 21. Specifically, the first contact portion 11 and the second contact portion 12 can be contact surfaces that contact the inner wall of the airflow channel 21, such as contact planes or contact curved surfaces. Figure 1 The example shown is that the first contact portion 11 and the second contact portion 12 are contact curved surfaces.

[0037] In some other examples, the first contact portion 11 and the second contact portion 12 may also be provided on an annular protrusion extending circumferentially around the seal 1, and the annular protrusion may be in contact with the inner wall surface or line contact with the airflow channel, which is not specifically limited in the present application.

[0038] In some specific embodiments, the sealing member 1 may be in the shape of an elongated rod, specifically in the shape of a column, such as a cylindrical or prism shape, which is not specifically limited in the present application. Figure 1 The seal 1 shown is cylindrical.

[0039] The seal 1 can be made of many kinds of materials. The seal 1 can be made of food-grade materials with certain flexibility, such as food-grade plastic, food-grade rubber or food-grade carbon fiber material. The seal 1 can also be made of other non-toxic materials, which is not specifically limited here.

[0040] When the user is not smoking the electronic atomizer device, the user extends the sealing member 1 into the atomizer 2 until the limiting structure 13 abuts against a portion of the inner wall of the airflow channel 21 , and the first contact portion 11 and the second contact portion 12 are respectively in sealing contact with the inner wall of the airflow channel 21 to form a sealed cavity 22 .

[0041] When the user smokes the electronic atomizer device, the user pulls the sealing member 1 out of the atomizer 2, and then uses the electronic atomizer device to smoke. The atomizer 2 will atomize the atomizing liquid in the liquid storage tank 2c and form an aerosol in the air flow channel 21. The aerosol can flow along the air outlet end of the air flow channel 21 with the user's smoking action, and enter the user's mouth to be inhaled by the user.

[0042] The technical solution of the utility model, the sealing member 1 comprises a first contact portion 11 and a second contact portion 12 which are arranged at intervals along the length direction, and a limiting structure 13 which is located outside the area defined by the first contact portion 11 and the second contact portion 12; when the limiting structure 13 is configured to be positioned on a portion of the inner wall outside the atomization channel of the airflow channel 21, the first contact portion 11 and the second contact portion 12 are respectively in sealing contact with the inner wall of the airflow channel 21, so that the atomization channel of the airflow channel 21 between the first contact portion 11 and the second contact portion 12 forms a sealed cavity 22. In this way, the limiting structure 13 cooperates with the inner wall of the part outside the atomization channel of the air flow channel 21 for positioning, so as to ensure that the atomization channel of the air flow channel 21 between the first contact part 11 and the second contact part 12 forms a sealed cavity 22, thereby avoiding the problem of leakage caused by the inability to seal the atomization channel due to the failure of the seal 1 to be inserted into the atomizer. At the same time, when the user extends the seal 1 into the atomizer 2, it only needs to extend it to the limit structure 13 and the part of the inner wall of the air flow channel 21 to cooperate, so as to facilitate the user to use the seal. This method can quickly realize the positioning and cooperation of the seal 1 and the atomizer to seal the atomization channel part of the air flow channel 21, and the operation is convenient 1.

[0043] Please also read Figure 1 to Figure 2In some embodiments of the utility model, the seal 1 is provided with a gripping section 14 extending out of the airflow channel 21 and an inserting section 15 extending into the airflow channel 21; the limiting structure 13, the first contact portion 11, and the second contact portion 12 are all arranged at intervals on the inserting section 15, and the first contact portion 11 is closer to the gripping section 14 than the second contact portion 12. With such an arrangement, the user can grasp the seal 1 through the gripping section 14, so that it is convenient for the user to insert or pull out the seal 1 from the atomizer 2.

[0044] In some embodiments, the cross-sectional dimensions of the first contact portion 11 and the second contact portion 12 may be the same or different. As an example, taking the seal 1 as a columnar structure, the outer diameters of the first contact portion 11 and the second contact portion 12 may be the same, or the outer diameters of the first contact portion 11 and the second contact portion 12 may be different. Preferably, the outer diameter of the first contact portion 11 is larger than the outer diameter of the second contact portion 12. Since the second contact portion 12 will first pass through the position where the airflow channel 21 seals and cooperates with the first contact portion 11, the outer diameter of the second contact portion 12 is smaller than the outer diameter of the first contact portion 11, which can facilitate the user to pass the second contact portion 12 through the position where the airflow channel 21 seals and cooperates with the first contact portion 11, thereby facilitating the user to insert or pull out the seal 1 from the atomizer 2.

[0045] It should also be noted that the maximum outer diameter of the grip section 14 is smaller than the maximum outer diameter of the first contact portion 11. This arrangement can prevent the grip section 14 from contacting the inner wall of the airflow channel 21, thereby reducing the friction between the seal 1 and the atomizer 2, and making it easier for the user to insert or remove the seal 1 from the atomizer 2.

[0046] The gripping section 14 and the inserting section 15 may be integrally formed, or may be detachably connected to each other, which is not specifically limited here. The gripping section 14 and the inserting section 15 may be made of the same material, or may be made of different materials, which is not specifically limited here.

[0047] In some embodiments, a rough structure is provided on the outer circumference of the gripping section 14, wherein the rough structure is used to increase the surface area of ​​the gripping section, so as to increase the contact area and surface friction when the user grips the gripping section. As an example, the rough structure includes a plurality of annular grooves 141 recessed on the outer side wall of the gripping section 14, and the plurality of annular grooves 141 are arranged at intervals along the axial direction of the seal 1. In this way, the friction coefficient of the gripping section 14 can be increased by the annular grooves 141, thereby facilitating the user to grip the gripping section 14.

[0048] The number of the annular grooves 141 can be one, two, three, five, etc., which is not specifically limited here. There are many kinds of cross-sections of the annular groove 141. The cross-section of the annular groove 141 can be square, the cross-section of the annular groove 141 can also be semicircular, or the cross-section of the annular groove 141 can also be other shapes, which is not specifically limited here. The portion between the two annular grooves 141 is a gripping protrusion. There are many kinds of cross-sections of the gripping protrusion. The cross-section of the gripping protrusion can be square, the cross-section of the gripping protrusion can also be semicircular, or the cross-section of the gripping protrusion can also be other shapes, which is not specifically limited here. Preferably, the connection between the gripping protrusion and the adjacent annular groove 141 is provided with a chamfer to prevent the user from being scratched by the gripping protrusion during use.

[0049] It is understandable that the rough structure may also include but is not limited to protrusions, anti-slip textures, etc. provided on the outer side wall of the grip section 14.

[0050] Please also read Figure 1 to Figure 2 In some embodiments of the utility model, the limiting structure 13 includes a first limiting portion 131, and the first limiting portion 131 is arranged on the outer peripheral wall of one end of the insertion section 15 close to the gripping section 14. Sealing member. With such arrangement, when the sealing member 1 extends into the airflow channel 21, the first limiting portion 131 is limited by abutting against the inner wall surface of the airflow channel 21 to ensure that the atomization channel between the first contact portion 11 and the second contact portion 12 forms a sealed cavity 22, thereby avoiding the problem that the sealed cavity 22 cannot be formed due to the sealing member 1 not being properly inserted.

[0051] It should be noted that the inner wall of the airflow channel 21 may be concavely provided with a groove that is plugged into and cooperates with the first limiting portion 131, and the limiting is performed by the abutment between the groove wall and the first limiting portion 131; the inner wall of the airflow channel 21 may also be convexly provided with a positioning protrusion, and the positioning protrusion is limited by the abutment between the first limiting portion 131, which are not listed one by one here.

[0052] Please also read Figure 1 to Figure 2 In some embodiments of the present invention, the limiting structure 13 includes a second limiting portion 132, and the second limiting portion 132 is located at an end of the insertion section 15 away from the gripping section 14. With this arrangement, when the seal 1 is extended into the airflow channel 21, it is only necessary to extend the second limiting portion 132 to abut against the inner wall of the airflow channel 21, thereby facilitating the user to use the electronic atomization device.

[0053] Furthermore, the cross-sectional dimension of the second limiting portion 132 is gradually increased in the direction from the insertion section 15 to the gripping section 14. With such a configuration, when the seal 1 extends into the airflow channel 21, the outer peripheral wall of the second limiting portion 132 abuts against the inner wall of the airflow channel 21 to play a guiding role, thereby facilitating the second limiting portion 132 to pass through the airflow channel 21 and seal the first contact portion 11 and the second contact portion 12, thereby facilitating the user to use the electronic atomization device.

[0054] Please also read Figure 1 to Figure 2 In some embodiments of the present invention, the cross-sectional dimensions of the insertion section 15 decrease from one end close to the grip section 14 to the other end. For example, if the seal is cylindrical, the radius of the insertion section 15 decreases from one end close to the grip section 14 to the other end. This arrangement can avoid a fault between the grip section 14 and the insertion section 15, thereby preventing the user from being scratched at the fault, and at the same time making the appearance of the seal 1 more beautiful.

[0055] Please also read Figures 1 to 4 The present invention further proposes an electronic atomization device, which includes an atomizer 2 and a seal 1. The specific structure of the seal 1 refers to the above embodiment. Since the electronic atomization device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here one by one. In which, the atomizer 2 is provided with an air flow channel 21 and a liquid storage tank 2c. In the extension direction of the air flow channel 21, the inner wall of the air flow channel 21 is spaced apart with a first sealing portion 23, a second sealing portion 24 and a matching structure 25, and the matching structure 25 is located on the inner wall of the air flow channel 21 outside the area defined by the first sealing portion 23 and the second sealing portion 24. The air flow channel 21 includes an atomization channel located between the first sealing portion 23 and the second sealing portion 24, and an atomization core 282 connected to the liquid storage tank 2c is installed in the atomization channel; the sealing member 1 is detachably connected to the air flow channel 21, and when the limiting structure 13 is engaged with the matching structure 25, the first sealing portion 23 is in sealing contact with the first contact portion 11, and the second sealing portion 24 is in sealing contact with the second contact portion 12, so that the atomization channel forms a closed space (i.e., the sealed cavity 22).

[0056] In some specific embodiments, the liquid storage tank 2c is provided with a lower liquid port 283 between the first sealing portion 23 and the second sealing portion 24, which is in liquid communication with the atomizer core 282. The liquid in the liquid storage tank 2c can flow to the atomizer core 282 through the lower liquid port 283, that is, the first sealing portion 23 and the second sealing portion 24 are respectively located on both sides of the lower liquid port 283 of the liquid storage tank 2c in the extension direction of the air flow channel 21. When the sealing member 1 is extended into the atomizer 2, since there is a closed space between the first sealing portion 23 and the second sealing portion 24, the liquid in the liquid storage tank 2c overflows into the atomization channel through the atomizer core 282 through the lower liquid port 283 and is sealed in the atomization channel without flowing to other places.

[0057] Please also read Figures 1 to 4 In some embodiments of the utility model, the limiting structure 13 includes a first limiting portion 131, which is protruded from the outer wall of the seal 1; the matching structure 25 includes a matching groove 251 adapted to the first limiting portion 131, and the matching groove 251 is recessed on the inner wall surface of the airflow channel 21 and is arranged close to the air outlet 211 of the airflow channel 21, and the matching groove 251 extends in the direction of the air outlet 211 of the airflow channel 21 and is arranged through it.

[0058] With such arrangement, when the seal 1 extends into the airflow channel 21, the first limiting portion 131 abuts against the wall of the matching groove 251 away from the air outlet 211 for limiting, so as to ensure the sealed connection between the first sealing portion 23 and the first contact portion 11 and the sealed connection between the second sealing portion 24 and the second contact portion 12 of the seal 1, thereby avoiding misalignment between the first sealing portion 23 and the first contact portion 11 or misalignment between the second sealing portion 24 and the second contact portion 12, resulting in the failure to form the sealed cavity 22. At the same time, the user only needs to extend the seal 1 until the second limiting portion 132 abuts against the wall of the matching groove 251 away from the air outlet 211, thereby facilitating the user to use the electronic atomization device.

[0059] It should be noted that the matching groove 251 can be plugged and matched with the first limiting portion 131, and the matching groove 251 can also extend along the circumference of the airflow channel 21 and be arranged in an annular shape, which is not specifically limited here. The two groove walls of the matching groove 251 in the circumferential direction of the airflow channel 21 can be parallel to the axial direction of the airflow channel 21, and the two groove walls of the matching groove 251 in the circumferential direction of the airflow channel 21 can also be gradually approached to each other in the direction away from the air outlet 211. Preferably, the two groove walls of the matching groove 251 in the circumferential direction of the airflow channel 21 are gradually approached to each other in the direction away from the air outlet 211, so that the two groove walls of the matching groove 251 in the circumferential direction of the airflow channel 21 can contact with the first limiting portion 131 to play a guiding role, thereby facilitating the user to use the electronic atomization device.

[0060] Please also refer to Figures 1 to 4 The number of the first limiting parts 131 is multiple, and the multiple first limiting parts 131 are arranged at intervals along the circumferential direction of the sealing member 1; the number of the matching grooves 251 is set in a one-to-one correspondence with the number of the first limiting parts 131. In this way, the sealing member 1 can be limited in the circumferential direction of the airflow channel 21 by matching the multiple first limiting parts 131 with the corresponding matching grooves 251.

[0061] Please also read Figures 1 to 4 In some embodiments of the utility model, the limiting structure 13 includes a second limiting portion 132, and the second limiting portion 132 is located at one end of the sealing member 1; the matching structure 25 includes a matching portion 252, and the matching portion 252 is provided with an air inlet 212 of the air flow channel 21; the second limiting portion 132 can abut against the matching portion 252. In this way, when the sealing member 1 extends into the air flow channel 21, it is ensured that the first sealing portion 23 is sealed and connected with the first contact portion 11 and the second sealing portion 24 is sealed and connected with the second contact portion 12 of the sealing member 1, thereby avoiding the misalignment of the first sealing portion 23 with the first contact portion 11 or the misalignment of the second sealing portion 24 with the second contact portion 12, resulting in the failure to form the sealing cavity 22. At the same time, the user only needs to extend the sealing member 1 until the second limiting portion 132 abuts against the surface of the matching portion 252 facing the air outlet 211, thereby facilitating the user to use the electronic atomization device.

[0062] Furthermore, the first sealing portion 23 is located between the air outlet 211 and the second sealing portion 24; the atomizer 2 is also provided with a storage cavity 26 communicating with the air flow channel 21 between the air inlet 212 and the second sealing portion 24; when the second limiting portion 132 abuts against the matching portion 252, the second limiting portion 132 blocks the air inlet 212. With such a configuration, the air inlet 212 can be shielded by the limiting portion, thereby preventing the external environment from affecting the air flow channel 21 through the air inlet 212, thereby improving the safety of the electronic atomization device, and the atomized liquid can be prevented from flowing out of the air inlet 212 by shielding the air inlet 212. At the same time, when the atomized liquid flows out from the gap between the second contact portion 12 and the second sealing portion 24, it will first flow into the storage cavity 26, thereby preventing the atomized liquid from flowing out of the air inlet 212.

[0063] Specifically, the atomizer 2 includes an oil cup 27, an atomizer assembly 28 and a base 2a. One end of the oil cup 27 is provided with an air outlet 211, and a vent pipe 271 extending from the air outlet 211 to the other end is provided in the oil cup 27; the atomizer assembly 28 is arranged in the oil cup 27 and is sealedly connected to the vent pipe 271 through a first seal 29; the base 2a is connected to the other end of the oil cup 27 and is sealedly connected to the oil cup 27 and the other end of the atomizer assembly 28 through a second seal 2b, and a storage space is formed between the base 2a and the second seal 2b. cavity 26; wherein, a liquid storage tank 2c is enclosed between the inner wall of the oil cup 27 and the atomizer assembly 28 and the base 2a, and the air flow channel 21 is arranged through the vent pipe 271, the first seal 29, the atomizer assembly 28, the second seal 2b and the base 2a; the matching groove 251 is formed on the inner wall of the vent pipe 271, the first sealing portion 23 is formed on the inner wall of the first seal 29, the atomization channel is formed in the atomizer assembly 28, the second sealing portion 24 is formed on the inner wall of the second seal 2b, and the matching portion 252 is formed on the base 2a.

[0064] In this way, by setting the matching part 252 on the base 2a, there is no need to set the matching part 252 as a separate component to cooperate with the second limiting part 132. At the same time, the atomization assembly 28 and the second sealing part 2b are connected to the oil cup 27, so that the overall structure of the atomizer 2 is more compact, thereby reducing the overall volume of the atomizer 2.

[0065] It should be noted that the liquid storage tank 2c is in liquid communication with the atomizing assembly 28. Specifically, the atomizing assembly 28 includes an atomizing bracket 281 and an atomizing core 282 disposed in the atomizing bracket 281, wherein the atomizing bracket 281 is provided with a lower liquid port 283 connected to the liquid storage tank 2c, and the atomizing core 282 is disposed in the atomizing bracket 281 and communicates with the atomized liquid in the liquid storage tank 2c through the lower liquid port 283. The atomizing bracket 281 is a tubular structure with a hollow inner wall, and the atomizing portion of the airflow channel 21 is formed in the atomizing bracket 281, wherein one end of the atomizing bracket 281 is sealed and connected to the vent pipe through a first sealing member, and the other end is sealed and connected to one end of the oil cup of the second sealing member close to the base, and the above-mentioned sealed cavity 22 is the atomizing channel portion of the airflow channel 21 formed in the atomizing bracket 281, that is, the atomizing core 282 is located in the sealed cavity 22 defined by the sealing member 1 and the airflow channel 21.

[0066] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A seal configured to be detachably connected to an air flow channel of an atomizer, characterized in that: The sealing member comprises a first contact portion and a second contact portion which are arranged at intervals along the length direction, and a limiting structure located outside the area defined by the first contact portion and the second contact portion; Wherein, when the limiting structure is configured to be positioned on a portion of the inner wall outside the atomization channel of the airflow channel, the first contact portion and the second contact portion are respectively in sealing contact with the inner wall of the airflow channel, so that the airflow channel forms a sealed cavity in the atomization channel between the first contact portion and the second contact portion.

2. The seal according to claim 1, characterized in that The sealing member is provided with a gripping section extending out of the airflow channel and an inserting section extending into the airflow channel; The limiting structure, the first contact portion, and the second contact portion are all arranged at intervals on the insertion section, and the first contact portion is closer to the holding section than the second contact portion.

3. The seal according to claim 2, characterized in that The limiting structure comprises a first limiting portion, and the first limiting portion of the seal is arranged on the outer peripheral wall of one end of the insertion section close to the gripping section.

4. The seal according to any one of claims 2 or 3, characterized in that The limiting structure includes a second limiting portion, and the second limiting portion is located at an end of the insertion section away from the holding section.

5. The seal according to any one of claims 2 or 3, characterized in that The cross-sectional dimensions of the insertion section decrease gradually from one end close to the gripping section to the other end.

6. An electronic atomization device, characterized in that: The electronic atomization device comprises an atomizer and a sealing member as claimed in any one of claims 1 to 5, wherein: The atomizer is provided with an air flow channel and a liquid storage tank, and in the extension direction of the air flow channel, the inner wall of the air flow channel is provided with a first sealing part, a second sealing part and a matching structure at intervals, and the matching structure is located on the inner wall of the air flow channel outside the area defined by the first sealing part and the second sealing part, the air flow channel includes an atomization channel located between the first sealing part and the second sealing part, and an atomization core in liquid communication with the liquid storage tank is installed in the atomization channel; The sealing member is detachably connected to the airflow channel. When the limiting structure is engaged with the matching structure, the first sealing portion is in sealing contact with the first contact portion, and the second sealing portion is in sealing contact with the second contact portion.

7. The electronic atomization device according to claim 6, characterized in that: The limiting structure comprises a first limiting portion, which is convexly arranged on the outer peripheral wall of the sealing member; The matching structure includes a matching groove adapted to the first limiting portion, the matching groove is recessed in the inner wall surface of the airflow channel and is arranged close to the air outlet of the airflow channel, and the matching groove extends toward the air outlet of the airflow channel and penetrates through it.

8. The electronic atomization device according to claim 7, characterized in that: The limiting structure comprises a second limiting portion, and the second limiting portion is located at one end of the sealing member; The matching structure comprises a matching portion, and the matching portion is provided with an air inlet of the airflow channel; The second limiting portion may abut against the matching portion.

9. The electronic atomization device according to claim 8, characterized in that: The first sealing portion is located between the air outlet and the second sealing portion; The atomizer is further provided with a storage chamber communicating with the air flow channel between the air inlet and the second sealing portion; When the second limiting portion abuts against the matching portion, the second limiting portion blocks the air inlet.

10. The electronic atomization device according to claim 8, characterized in that: The atomizer comprises: An oil cup, wherein one end of the oil cup is provided with the air outlet, and a vent pipe is provided inside the oil cup and extends from the air outlet to the other end; An atomizing assembly is disposed in the oil cup and is sealed and connected to the vent pipe through a first sealing member; A base, connected to the other end of the oil cup and sealed to the oil cup and the other end of the atomizer assembly through a second seal, a storage cavity being formed between the base and the second seal; Among them, the inner wall of the oil cup and the ventilation pipe, the first seal, the atomization assembly and the second seal enclose the liquid storage tank; the air flow channel is penetrated by the ventilation pipe, the first seal, the atomization assembly, the second seal and the base; the matching groove is formed on the inner wall of the ventilation pipe, the first sealing part is formed on the inner wall of the first seal, the atomization channel is formed in the atomization assembly, the second sealing part is formed on the inner wall of the second seal, and the matching part is formed on the base.

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