CN216701682U

CN216701682U - Atomizer and aerosol generating device

Info

Publication number: CN216701682U
Application number: CN202123385691.6U
Authority: CN
Inventors: 邱伟华
Original assignee: Joyetech Shenzhen Electronics Co Ltd
Current assignee: Joyetech Shenzhen Electronics Co Ltd
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2022-06-10
Anticipated expiration: 2031-12-29

Abstract

The utility model provides an atomizer and an aerosol generating device. In the atomizer structure, through rotatory rotating member, rotating member and movable sleeve constitute lead screw drive mechanism, can drive movable sleeve and carry out axial displacement for movable sleeve selectively feeds through or keeps apart stock solution chamber and atomizing chamber, and then makes stock solution chamber and atomizing chamber keep apart or the intercommunication, reaches the purpose that realizes liquid core separation repeatedly operable and usable. And, adopt rotatory operation mode to make the movable sleeve pipe carry out axial displacement, realize selectively communicating or keeping apart stock solution chamber and atomizing chamber, guaranteed the stability that the movable sleeve pipe that removes selectively communicates or keeps apart stock solution chamber and atomizing chamber operation, avoid causing harmful effects to the stability of atomizer inner structure.

Description

Atomizer and aerosol generating device

Technical Field

The utility model belongs to the technical field of simulated smoking, and particularly relates to an atomizer and an aerosol generating device.

Background

The aerosol generating device generally includes an atomizer and a power supply device electrically connected to the atomizer, and the atomizer is capable of heating and atomizing an aerosol-forming substrate stored in the atomizer under an electrically driven action of the power supply device, so as to enable a user to inhale and achieve a simulated smoking effect. In the liquid core separation structure of atomizer, generally keep apart stock solution chamber and atomizing chamber in the atomizer through liquid core separable set, prevent that long-term flooding of aerosol formation matrix from polluting the device that generates heat in the atomizing chamber.

At present, can realize repeated intercommunication or keep apart the liquid core separable set of stock solution chamber and atomizing chamber in the atomizer structure, there is the defect that the structure is complicated, poor stability generally, this operation control process that just causes the intercommunication or keeps apart stock solution chamber and atomizing chamber can't remain stable, causes the influence to the steadiness of atomizer inner structure easily, and then leads to parts such as heater to take place not hard up or damage, reduces the life of atomizer.

SUMMERY OF THE UTILITY MODEL

Based on the above problems in the prior art, an object of an embodiment of the present invention is to provide an atomizer, so as to solve the technical problems in the prior art that a liquid-core separation assembly has a complex structure and poor stability, so that an operation control process of liquid-core separation cannot be kept stable, and stability of an internal structure of the atomizer is easily affected.

In order to achieve the purpose, the utility model adopts the technical scheme that: there is provided a nebulizer, comprising:

the aerosol-forming device comprises a liquid storage part, a liquid outlet and a liquid outlet, wherein a liquid storage cavity for storing aerosol-forming substrate and an atomization cavity for atomizing the aerosol-forming substrate to form smoke are arranged in the liquid storage part;

an atomising wick disposed in the atomising chamber for atomising the aerosol-forming substrate provided by the reservoir chamber; and

the liquid core separation assembly comprises a movable sleeve and a rotating piece which is rotatably arranged on the liquid storage piece, a first end of the movable sleeve is contained in the liquid storage piece in a manner of moving along the axial direction, a second end of the movable sleeve penetrates through the through hole to extend out of the liquid storage piece, and a smoke suction port communicated with the atomization cavity is formed in the rotating piece;

the movable sleeve is provided with a first thread, and the rotating part is internally provided with a second thread matched with the first thread so as to rotate the rotating part and drive the movable sleeve to axially move, so that the movable sleeve is selectively isolated or communicated with the liquid storage cavity and the atomization cavity.

Furthermore, the movable sleeve comprises an isolating piece which can be accommodated in the liquid storage piece in an axially movable manner, a sliding pipe which is arranged in the through hole in a penetrating manner, and a threaded pipe which is provided with the first thread on the outer pipe wall, wherein the sliding pipe is connected with the isolating piece and the threaded pipe.

Further, the rotating part comprises a suction nozzle with the smoking port and a threaded sleeve with the second thread, the suction nozzle can be arranged on the liquid storage part along the rotation of the liquid storage part, the threaded sleeve is fixed in the suction nozzle, and the threaded sleeve is sleeved on the threaded pipe, so that when the suction nozzle is rotated, the movable sleeve can be driven to move axially through the threaded sleeve.

Furthermore, a first guide pipe for guiding the threaded pipe to move axially is arranged in the suction nozzle, the threaded pipe can be sleeved on the first guide pipe in an axially moving mode, and the threaded sleeve is sleeved on the outer side of the first guide pipe.

Furthermore, a second guide tube for guiding the movable sleeve to move axially is arranged on the liquid storage part, a port of a first end of the second guide tube is communicated with the through hole, the sliding tube is slidably arranged in the second guide tube, and the suction nozzle can be rotatably sleeved on the second guide tube along the liquid storage part.

Furthermore, an elastic piece used for elastically propping against the sliding pipe towards the direction far away from the suction nozzle is arranged in the second guide pipe.

Furthermore, the outer diameter of the threaded pipe is smaller than that of the sliding pipe, so that a first step surface is formed at the joint of the threaded pipe and the sliding pipe, a supporting part is arranged at the port of the second end of the second guide pipe, the elastic piece is sleeved on the outer side of the threaded pipe, the first end of the elastic piece is supported on the supporting part, and the second end of the elastic piece is supported on the first step surface.

Furthermore, the liquid core separation assembly further comprises a fixed sleeve accommodated in the movable sleeve, a liquid storage cavity is defined by the part inside the liquid storage part outside the movable sleeve, the atomization cavity is formed inside the fixed sleeve, and a liquid inlet communicated with the atomization cavity is formed in the side wall of the fixed sleeve; when the movable sleeve moves to the first position, the liquid inlet is blocked by the movable sleeve to close the liquid storage cavity; when the movable sleeve moves to the second position, the liquid inlet is exposed to open the liquid storage cavity.

Furthermore, the fixed sleeve comprises an atomizing pipe with a first end fixed in the liquid storage part and a connecting pipe connected with a second end of the atomizing pipe, the atomizing pipe is contained in the partition part, the atomizing cavity is formed by the inner space of the atomizing pipe, the liquid inlet is arranged on the side wall of the atomizing pipe, and the connecting pipe is inserted in the sliding pipe in a sliding manner.

Based on the above problems in the prior art, it is another object of the embodiments of the present invention to provide an aerosol generating device having the atomizer in any of the above aspects.

In order to achieve the purpose, the utility model adopts the technical scheme that: there is provided an aerosol generating device comprising the atomiser provided in any of the preceding aspects.

Compared with the prior art, one or more technical schemes in the embodiment of the utility model have at least one of the following beneficial effects:

in the atomizer and the aerosol generating device in the embodiment of the utility model, in the atomizer structure, the rotating part is rotated, and the rotating part and the movable sleeve form a lead screw transmission mechanism which can drive the movable sleeve to axially move, so that the movable sleeve is selectively communicated or isolated with the liquid storage cavity and the atomizing cavity, and further the liquid storage cavity is isolated or communicated with the atomizing cavity, thereby achieving the purpose of liquid core separation and repeated operation and use. And, the rotating member is connected with the movable sleeve through the mode that the screw thread closes soon, only need rotatory operation rotating member alright drive movable sleeve axial displacement to realize selectively intercommunication or keep apart stock solution chamber and atomizing chamber, guaranteed liquid core separation operation's reliable and stable nature, avoid causing harmful effects to atomizer inner structure's stability, and lead to parts such as the heater that causes the atomizing core to take place to become flexible or damage.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic cross-sectional structural view of an atomizer provided in an embodiment of the present invention;

FIG. 2 is an exploded view of the threaded sleeve and threaded tube of the atomizer shown in FIG. 1;

FIG. 3 is a perspective view of the stationary shroud of the atomizer shown in FIG. 1;

fig. 4 is an exploded view of the atomizer shown in fig. 1.

Wherein, in the figures, the respective reference numerals:

1-liquid storage part; 11-a housing; 12-a base; 13-an air intake; 14-a second guide tube; 141-a holding portion;

2-atomizing core;

3-a liquid core separation module; 31-a fixed sleeve; 311-an atomizing tube; 312-a connection tube; 313-liquid inlet; 314-a second seal groove; 315-third seal groove; 316-second step face; 32-an active cannula; 321-a spacer; 322-a sliding tube; 323-threaded pipe; 324-a first thread; 325 — a first step face; 326-third step face; 327-a first seal groove; 33-a rotating member; 331-a threaded sleeve; 332-a suction nozzle; 333-a first guide tube; 334-smoking mouth; 335-a second thread;

4-a stop; 5-an elastic member; 6-first sealing ring; 7-a second sealing ring;

8-a third sealing ring; 9-an atomizing cavity; 10-liquid storage cavity.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

It will be understood that when an element is referred to as being "connected" or "disposed" to another element, it can be directly on the other element or be indirectly connected to the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the utility model.

Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrases "in one embodiment," "in some embodiments," or "in some embodiments" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Referring to fig. 1 to 4 together, an atomizer according to an embodiment of the present invention will now be described. The atomizer provided by the embodiment of the utility model is suitable for an aerosol generating device, and the aerosol generating device comprises the atomizer and a power supply device electrically connected with the atomizer. When in use, the power supply device is used for providing electric energy for the atomizer, and the atomizer heats and atomizes the aerosol-forming substrate stored in the atomizer under the action of electric drive so as to be sucked by a user to achieve the effect of simulating smoking

Referring to fig. 1, 2 and 4, an atomizer according to an embodiment of the present invention includes a liquid storage member 1, an atomizing core 2 and a liquid-core separating assembly 3, wherein a liquid storage chamber 10 for storing an aerosol-forming substrate and an atomizing chamber 9 for atomizing the aerosol-forming substrate to form aerosol are disposed in the liquid storage member 1, and a through hole is disposed at a top of the liquid storage member 1. In some embodiments, the reservoir 1 includes a cylindrical shell 11 and a base 12 mounted on the bottom opening of the shell 11. The atomizing core 2 is arranged in the atomizing chamber 9, and the atomizing core 2 can atomize the aerosol-forming substrate provided by the reservoir chamber 10 to form an aerosol in the atomizing chamber 9. It is understood that the atomizing core 2 can be, but is not limited to, a ceramic atomizing member having liquid-absorbing capability or an atomizing member in which a heating wire is wrapped with liquid-absorbing cotton.

Referring to fig. 1 and 4, the liquid core separation assembly 3 includes a movable sleeve 32 and a rotary member 33, a first end of the movable sleeve 32 is axially movably received in the liquid storage member 1, a second end of the movable sleeve 32 passes through the through hole and extends out of the liquid storage member 1, the rotary member 33 is rotatably disposed at a top of the liquid storage member 1, and a smoke suction port 334 communicated with the atomizing chamber 9 is disposed on the rotary member 33, so that smoke generated in the atomizing chamber 9 can be sucked into a user's mouth through the smoke suction port 334. Referring to fig. 1, the base 12 is provided with an air inlet 13 for introducing external air into the atomizing chamber 9. When the user sucks, the external air flows into the atomizing chamber 9 through the air inlet 13 on the base 12, is mixed with the smoke in the atomizing chamber 9, is guided to the smoking port 334 through the movable sleeve 32 under the driving of the introduced air flow, and finally reaches the mouth of the user through the smoking port 334, so that the effect of simulating smoking is achieved by the user. Referring to fig. 1 and 2, the movable sleeve 32 is provided with a first thread 324, and the rotating member 33 is provided with a second thread 335 matching the first thread 324. The first thread 324 inside the rotating member 33 and the first thread 324 on the movable sleeve 32 are screwed together, so that the rotating member 33 and the movable sleeve 32 form a screw transmission mechanism. In this way, by rotating the rotating member 33, the movable sleeve 32 can be driven to move axially, so that the movable sleeve 32 can selectively communicate or isolate the liquid storage chamber and the atomizing chamber 10.

Compared with the prior art, the atomizer provided by the embodiment of the utility model has the advantages that the rotating part 33 is rotated, the rotating part 33 and the movable sleeve 32 form a screw transmission mechanism, the movable sleeve 32 can be driven to axially move, the movable sleeve 32 is enabled to be selectively communicated or isolated from the liquid storage cavity and the atomization cavity 10, the liquid storage cavity 10 is further enabled to be isolated or communicated with the atomization cavity 9, and the purpose of realizing liquid core separation and repeated operation and use is achieved. And, rotating member 33 is connected through the mode that the screw thread closes soon with movable sleeve 32, only need rotatory operation rotating member 33 alright drive movable sleeve 32 axial displacement to realize selectively intercommunication or keep apart stock solution chamber and atomizing chamber 10, guaranteed axial displacement movable sleeve 32 selectively intercommunication or keep apart the reliable and stable nature of stock solution chamber and atomizing chamber 10 operation, avoid causing harmful effects to the stability of atomizer inner structure, and parts such as the heater that lead to the atomizing core take place to become flexible or damage.

Referring to fig. 1 and 2, in some embodiments, the movable sleeve 32 includes a spacer 321, a sliding tube 322, and a threaded tube 323 having a first thread 324, wherein the sliding tube 322 connects the spacer 321 and the threaded tube 323, such that the spacer 321 forms a first end of the movable sleeve 32, and the threaded tube 323 forms a second end of the movable sleeve 32. The partition 321 is axially movably accommodated in the liquid storage member 1, the sliding tube 322 is inserted into the through hole, the threaded tube 323 passes through the through hole and extends out of the liquid storage member 1, and the threaded tube 323 is mounted on the rotating member 33 through a threaded connection structure of the first thread 324 and the second thread 335. Like this, only need rotatory rotating member 33, rotating member 33 constitutes screw drive mechanism with screwed pipe 323, can drive movable sleeve 32 and carry out axial displacement for the separator 321 of movable sleeve 32 selectively communicates or keeps apart stock solution chamber and atomizing chamber 10, and then makes stock solution chamber 10 keep apart or communicate with atomizing chamber 9, reaches the purpose that realizes that the liquid core separation repeatedly operation is used. It should be noted that in order to enhance the stability of the overall structure of the movable sleeve 32, the partition 321, the sliding pipe 322 and the threaded pipe 323 are integrally formed. The spacer 321 may be, but is not limited to, a spacer sleeve accommodated in the liquid storage member 1 in an axially movable manner, for example, the spacer 321 may also be a spacer accommodated in the liquid storage member 1 in an axially movable manner. It will be appreciated that when the first screw thread 324 is an external screw thread provided on the outer pipe wall of the screw pipe 323, the second screw thread 335 corresponds to an internal screw thread provided inside the rotary member 33. When the first screw 324 is an internal screw provided on the inner pipe wall of the screw pipe 323, the second screw 335 corresponds to an external screw provided inside the rotary member 33.

Referring to fig. 1 and 4 in combination, in some embodiments, the rotary member 33 includes a mouthpiece 332 having a smoking port 334 and a threaded sleeve 331 having second threads 335. When the first screw 324 is an external screw provided on the outer pipe wall of the screw pipe 323, the second screw 335 corresponds to an internal screw provided on the inner pipe wall of the screw cap 331. The suction nozzle 332 is rotatably disposed on the liquid storage member 1 along the circumferential direction of the liquid storage member 1, the threaded sleeve 331 is fixed in the suction nozzle 332, the threaded sleeve 331 is sleeved on the threaded pipe 323, and the threaded pipe 323 is mounted on the threaded sleeve 331 through the threaded connection structure of the first threads 324 and the second threads 335. Therefore, only the rotary suction nozzle 332 is needed to drive the threaded sleeve 331 to rotate, the threaded sleeve 331 and the threaded pipe 323 form a screw transmission mechanism, and the movable sleeve 32 can be driven to move axially, so that the isolating piece 321 of the movable sleeve 32 is selectively communicated or isolated from the liquid storage cavity and the atomizing cavity 10, and further the liquid storage cavity 10 is isolated or communicated with the atomizing cavity 9, and the purpose of realizing liquid core separation and repeated use is achieved. It will be appreciated that the suction nozzle 332 and the threaded sleeve 331 may also be integrally formed in order to enhance the stability of the overall structure of the rotary member 33. Of course, the threaded sleeve 331 may be omitted, and a female screw hole for fitting the threaded pipe 323 may be provided directly inside the suction nozzle 332 or inside the rotary member 33. It should be noted that when the suction nozzle 332 is integrally formed with the threaded sleeve 331, it corresponds to the suction nozzle 332 having an internally threaded hole for fitting over the threaded pipe 323.

Referring to fig. 1, in some embodiments, a first guide tube 333 for guiding the axial movement of the threaded tube 323 is disposed in the suction nozzle 332, the first guide tube 333 communicates with the smoking port 334, the threaded tube 323 is axially movably sleeved on the first guide tube 333, and the threaded sleeve 331 is sleeved outside the first guide tube 333. In this way, in the process of rotating the threaded sleeve 331 to drive the threaded pipe 323 to axially move, the first guide pipe 333 guides the threaded pipe 323 to axially move, so that the threaded pipe 323 is prevented from radially jumping or swinging in the process of moving up and down, and the phenomenon of blockage or jamming between the threaded sleeve 331 and the threaded pipe 323 is prevented, and the stability of the axial movement of the movable sleeve 32 is enhanced. And, a stopping portion 4 for stopping the end portion of the first guiding tube 333 is arranged on the inner side wall of the threaded tube 323, so that when the stopping portion 4 stops the end portion of the first guiding tube 333, the distance that the threaded tube 323 moves axially upwards is limited, which is beneficial to accurately controlling the movement stroke of the movable sleeve 32 moving axially, and enhancing the stability of the movable sleeve 32 at the position of opening the liquid storage chamber 10. It will be appreciated that the first guide tube 333 may also be integrally formed with the housing 11 of the reservoir 1 such that the port at the first end of the first guide tube 333 forms a through hole. The first end of the first guiding tube 333 may also extend into the housing 11 of the liquid storage member to form a communication channel for communicating the atomizing chamber 9 with the smoking port 334. The stopping portion 4 may be a stopping ring, a stopping block, or a stopping step surface provided on the inner side wall of the threaded pipe 323, and may be selected reasonably according to actual use requirements, and is not limited herein. It should be noted that, when the first screw 324 is an internal screw provided on the inner wall of the screw tube 323, the second screw 335 is an external screw provided on the outer wall of the first guide tube 333.

Referring to fig. 1 and fig. 2, in some embodiments, the liquid storage component 1 is provided with a second guiding tube 14 for guiding the movable sleeve 32 to move axially, a port of a first end of the second guiding tube 14 is communicated with the through hole, the sliding tube 322 is slidably disposed in the second guiding tube 14, and the suction nozzle 332 is rotatably sleeved on the second guiding tube 14 along the circumferential direction of the liquid storage component 1. In this way, during the axial movement of the movable sleeve 32, the sliding tube 322 and the second guide tube 14 form a relatively slidable guide structure, which prevents the movable sleeve 32 from jumping or swinging radially during the up and down movement, resulting in a jam or dead jam between the threaded sleeve 331 and the threaded tube 323, thereby enhancing the stability of the axial movement of the movable sleeve 32. It can be understood that, in order to enhance the sealing performance of the sliding connection between the second guiding tube 14 and the sliding tube 322, a first sealing groove 327 is provided on the outer wall of the sliding tube 322, and a first sealing ring 6 is provided in the first sealing groove 327.

Referring to fig. 1 and 4, in some embodiments, an elastic member 5 is further disposed in the second guiding tube 14, and the elastic member 5 can elastically push against the sliding tube 322 in a direction away from the suction nozzle 332, so that the movable sleeve 32 is at the first position for closing the liquid storage chamber 10, and the liquid storage chamber 10 is prevented from being opened due to mistaken touch of the suction nozzle 332, and the liquid leakage prevention performance of the atomizer can be effectively enhanced while the atomizing core 2 in the atomizing chamber 9 is not in contact with the aerosol-forming substrate in the liquid storage chamber 10. Referring to fig. 1 and 4, in some embodiments, the outer diameter of the threaded tube 323 is smaller than the outer diameter of the sliding tube 322 to form a first step surface 325 at the connection between the threaded tube 323 and the sliding tube 322, a port of the second end of the second guiding tube 14 is provided with a supporting portion 141, the elastic member 5 is sleeved outside the threaded tube 323, the first end of the elastic member 5 is supported on the supporting portion 141, and the second end of the elastic member 5 is supported on the first step surface 325. It is understood that the elastic member 5 may be, but is not limited to, an elastic member such as a compression spring, an air spring, or an elastic sleeve.

Referring to fig. 1 and 4, in some embodiments, the liquid core separation assembly 3 further includes a fixed sleeve 31 received in the movable sleeve 32, a liquid storage cavity 10 is defined by a portion of the liquid storage member 1 outside the movable sleeve 32, an atomization cavity 9 is formed inside the fixed sleeve 31, and a liquid inlet 313 communicating with the atomization cavity 9 is opened on a side wall of the fixed sleeve 31. Thus, when the movable sleeve 32 moves to the first position, the liquid inlet 313 is blocked by the partition 321 of the movable sleeve 32 to close the liquid storage cavity 10, and when the movable sleeve 32 moves to the second position, the liquid inlet 313 is exposed to open the liquid storage cavity 10. In addition, because the movable sleeve 32 is axially moved by the rotary operation, the axial moving distance of the movable sleeve 32 can be finely controlled by controlling the number of turns of the rotary suction nozzle 332, so as to change the size of the exposed area of the liquid inlet 313, and adjust the liquid inlet amount of the aerosol-forming substrate in the liquid storage chamber 10 into the atomizing chamber 9.

Referring to fig. 1 and 4, in some embodiments, the movable sleeve 32 includes a partition 321 axially movably received in the liquid storage member 1, a sliding tube 322 passing through the through hole, and a threaded tube 323 having a first thread 324 on an outer wall thereof and engaging with the rotating member 33 having a second thread 335, the sliding tube 322 is connected between the partition 321 and the threaded tube 323, the fixed sleeve 31 includes an atomizing tube 311 having a first end fixed in the liquid storage member 1 and a connecting tube 312 connected to a second end of the atomizing tube 311, the atomizing tube 311 is received in the partition 321, the atomizing chamber 9 is formed by an inner space of the atomizing tube 311, the liquid inlet 313 is opened in a side wall of the atomizing tube 311, and the connecting tube 312 is slidably inserted in the sliding tube 322. Because the connecting pipe 312 is arranged at the second end of the atomizing pipe 311, and the connecting pipe 312 is slidably inserted into the sliding pipe 322, the sliding pipe 322 and the connecting pipe 312 form a relatively slidable guide structure, so that the situation that the thread sleeve 331 and the thread pipe 323 are blocked or jammed due to radial run-out or swing of the movable sleeve 32 in the process of moving up and down is prevented, and the stability of the axial movement of the movable sleeve 32 is enhanced. In order to enhance the sealing performance of the sliding connection between the spacer 321 and the atomizing pipe 311, a second sealing groove 314 is formed on the outer wall of the atomizing pipe 311, and a second sealing ring 7 is arranged in the second sealing groove 314. In order to enhance the sealing performance of the sliding connection between the sliding tube 322 and the connecting tube 312, a third sealing groove 315 is disposed on the outer wall of the connecting tube 312, and a third sealing ring 8 is disposed in the third sealing groove 315. Referring to fig. 1 and 4, the outer diameter of the connecting tube 312 is smaller than the outer diameter of the atomizing tube 311 to form a second step surface 316 at the connection position of the connecting tube 312 and the atomizing tube 311, the inner diameter of the sliding tube 322 is smaller than the inner diameter of the spacer 321 to form a third step surface 326 at the connection position of the sliding tube 322 and the spacer 321, and when the movable sleeve 32 moves to the first position, the second step surface 316 and the third step surface 326 are abutted against each other, so as to enhance the stability of the atomizing tube 311. When the movable sleeve 32 moves to the first position, one end of the spacer 321 away from the sliding tube 322 abuts against the base 12 to limit the moving stroke of the movable sleeve 32 moving downward.

The embodiment of the utility model also provides an aerosol generating device which comprises the atomizer provided by any one of the embodiments. Since the aerosol generating device has all the technical features of the atomizer provided in any of the above embodiments, it has the same technical effects as the atomizer described above.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. An atomizer, comprising:

the movable sleeve is provided with a first thread, the rotating part is internally provided with a second thread matched with the first thread, so that the rotating part can drive the movable sleeve to axially move, and the movable sleeve can be selectively isolated or communicated with the liquid storage cavity and the atomization cavity.

2. The atomizer according to claim 1, wherein said movable sleeve comprises a spacer axially movably received in said reservoir, a sliding tube inserted into said through hole, and a threaded tube having said first thread on an outer wall thereof, said sliding tube connecting said spacer and said threaded tube.

3. The atomizer according to claim 2, wherein said rotating member includes a mouthpiece having said smoking opening and a threaded sleeve having said second thread, said mouthpiece being rotatably disposed on said reservoir along said reservoir, said threaded sleeve being fixed within said mouthpiece, and said threaded sleeve being received on said threaded tube such that said movable sleeve is axially movable by said threaded sleeve when said mouthpiece is rotated.

4. The atomizer according to claim 3, wherein a first guide tube is provided in said suction nozzle for guiding said threaded tube to move axially, said threaded tube being axially movably fitted over said first guide tube, said threaded sleeve being fitted over an outer side of said first guide tube.

5. The atomizer according to claim 3, wherein a second guide tube for guiding the movable sleeve to move axially is disposed on the liquid storage member, a port of a first end of the second guide tube is communicated with the through hole, the sliding tube is slidably disposed in the second guide tube, and the suction nozzle is rotatably sleeved on the second guide tube along the liquid storage member.

6. The atomizer according to claim 5, wherein a resilient member is further provided in said second guide tube for resiliently urging said sliding tube in a direction away from said suction nozzle.

7. The atomizer according to claim 6, wherein an outer diameter of the threaded tube is smaller than an outer diameter of the sliding tube to form a first step surface at a joint of the threaded tube and the sliding tube, a port of the second end of the second guide tube is provided with a holding portion, the elastic member is sleeved outside the threaded tube, a first end of the elastic member is held against the holding portion, and a second end of the elastic member is held against the first step surface.

8. The atomizer according to any one of claims 2 to 7, wherein the liquid-core separating assembly further comprises a fixed sleeve housed in the movable sleeve, a portion of the interior of the liquid storage member outside the movable sleeve defines the liquid storage chamber, the interior of the fixed sleeve forms the atomizing chamber, and a liquid inlet communicated with the atomizing chamber is formed in a side wall of the fixed sleeve; when the movable sleeve moves to the first position, the liquid inlet is blocked by the movable sleeve to close the liquid storage cavity; when the movable sleeve moves to the second position, the liquid inlet is exposed to open the liquid storage cavity.

9. The atomizer according to claim 8, wherein said fixed sleeve comprises an atomizing tube having a first end fixed in said liquid storage member and a connecting tube connected to a second end of said atomizing tube, said atomizing tube being received in said partition, said atomizing chamber being defined by an inner space of said atomizing tube, said liquid inlet opening being formed in a side wall of said atomizing tube, said connecting tube being slidably inserted in said sliding tube.

10. An aerosol generating device comprising an atomiser as claimed in any one of claims 1 to 9.