CN212520801U

CN212520801U - Aerosol generating device

Info

Publication number: CN212520801U
Application number: CN202021497183.XU
Authority: CN
Inventors: 张幸福; 廖焱程; 黄鹏飞
Original assignee: Shenzhen Maishi Technology Co Ltd
Current assignee: Shenzhen Maishi Technology Co Ltd
Priority date: 2020-07-24
Filing date: 2020-07-24
Publication date: 2021-02-12
Anticipated expiration: 2030-07-24

Abstract

The utility model relates to an aerosol generating device, including the host computer, with the extractor of the separable setting of host computer and set up in heating member on the host computer, be formed with the accommodating space that is used for acceping aerosol production substrate in the extractor, the heating member is including being used for inserting in the accommodating space aerosol produces the inside heating portion of substrate. Wherein the heating portion is capable of heating the aerosol-generating substrate when the extractor is in the first position. When the extractor is in the second position, the extractor is separated from the main body such that the heating portion is separated from the aerosol-generating substrate, thereby facilitating and expeditious removal of the aerosol-generating substrate from the extractor without damaging the aerosol-generating substrate and preventing residual material on the aerosol-generating substrate from remaining in the extractor.

Description

Aerosol generating device

Technical Field

The utility model relates to an atomizing field, more specifically say, relate to an aerosol produces device.

Background

The heating non-combustion type electronic cigarette, also called low-temperature baking smoking set, is an aerosol generating device which heats smoking materials in a non-combustion mode through low-temperature heating to form smokeable smoke. At present, the heating non-combustion type electronic cigarette usually adopts to insert the heater like the heating plate and heats a cigarette in the cigarette, through control heating temperature for the composition in the cigarette volatilizees, produces smog and supplies the people to absorb. When a cigarette is heated for a certain time, and the amount of the generated smoke reaches the upper limit, the cigarette needs to be pulled out from the smoking set, or the smoking is stopped, or a new cigarette is replaced to continue the smoking, at the moment, how to conveniently and quickly pull out the cigarette from the smoking set, the cigarette is not damaged, and no residue is left on the heater becomes a crucial problem. The existing low-temperature smoking set generally takes out cigarettes from the smoking set in a manual drawing mode, and the drawing force is greatly different due to different force application of users, so that the problems of cigarette breakage, tobacco shred residue on a heating body and the like are often caused when a lot of users draw cigarettes.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the present invention is to provide an improved aerosol generating device for the above-mentioned defects of the prior art.

The utility model provides a technical scheme that its technical problem adopted is: constructing an aerosol-generating device comprising a main body, an extractor provided separately from the main body, and a heating element provided on the main body, the extractor having a receiving space formed therein for receiving an aerosol-generating substrate, the heating element comprising a heating portion for inserting into the receiving space inside the aerosol-generating substrate;

wherein the heating portion is capable of heating the aerosol-generating substrate when the extractor is in the first position; when the extractor is in the second position, the extractor is separated from the host machine such that the heating portion is separated from the aerosol generating substrate.

In some embodiments, when the extractor is in the first position, the extractor is in contact with the host; when the extractor is at the second position, the heating part at least partially escapes from the accommodating space.

In some embodiments, a bottom wall for the aerosol-generating substrate to abut against is formed at the bottom of the accommodating space, and a socket for the heating part to insert into is opened on the bottom wall; when the extractor is in the first position, the heating portion can be fully inserted into the receiving space.

In some embodiments, the socket has a shape corresponding to a cross-sectional shape of the heating portion, the heating portion being clearance-fit in the socket.

In some embodiments, the heating portion is in the form of a sheet or rod, the end of the heating portion being provided with prong guide formations to facilitate insertion into the aerosol-generating substrate.

In some embodiments, the extractor includes a first housing having the receiving space formed therein; the main machine comprises a second shell, and the first shell is detachably arranged above the second shell along the longitudinal direction.

In some embodiments, the extractor further includes an extraction tube disposed in the first housing in a longitudinal direction, an inner wall surface of the extraction tube defining the receiving space.

In some embodiments, the extractor further comprises a first magnet disposed at the bottom of the first housing, and the host further comprises a second magnet disposed at the top of the second housing; when the extractor is in butt joint with the host computer, the first magnet and the second magnet are close to each other and are adsorbed.

In some embodiments, a cylindrical cover covering the heating portion is provided at an upper end of the main body, and the cover is spaced apart from an inner wall surface of the first housing and an outer wall surface of the extraction pipe.

In some embodiments, the extraction pipe is integrally formed by extending downward from the top wall of the first housing, or the extraction pipe is separately manufactured from the first housing and assembled with the top wall of the first housing.

In some embodiments, the extraction tube includes a fixed tube fixed to the first housing, and a movable tube slidably sleeved on a lower end of the fixed tube in an axial direction, inner wall surfaces of the fixed tube and the movable tube together define the receiving space, and a bottom of the movable tube forms the bottom wall and the socket.

In some embodiments, the lower end of the fixed pipe extends outwards to form a boss, the top of the movable pipe extends inwards to form a flange, and the flange is matched with the boss so as to clamp the boss below the flange.

In some embodiments, the main unit includes a sleeve portion, the bottom of the extractor is sleeved outside the sleeve portion, and an axial length of the sleeve portion is less than or equal to a sliding stroke of the movable pipe relative to the fixed pipe.

In some embodiments, a first clamping portion with an axial height smaller than a sliding stroke of the movable tube relative to the fixed tube is formed outside the upper end of the main frame, and a second clamping portion mutually clamped and matched with the first clamping portion is formed inside the bottom end of the extractor.

In some embodiments, the main unit includes a base portion embedded in the top of the second housing, a sleeve portion extending upward from a top wall of the base portion, and a cover extending upward from a top wall of the sleeve portion, an outer wall surface of the sleeve portion forms the first clamping portion, and the cover is disposed outside the heating portion and spaced from an inner wall surface of the first housing and an outer wall surface of the extraction tube;

the extractor still including inlay in the first magnet of first casing bottom, first magnet forms second joint portion, be provided with the second magnet in the host computer corresponding to first magnet.

In some embodiments, after the extractor and the host are docked, the lower end surface of the movable tube abuts against the top wall of the socket, and the lower end surface of the fixed tube abuts against the bottom wall.

In some embodiments, the main body further includes a base component embedded in the top of the second housing, and the heating element inserted into the base component, and an upper end of the heating element forms the heating portion.

In some embodiments, an airflow channel surrounding the heating element and communicating with the accommodating space is formed in the base assembly, and at least one air inlet hole communicating with the airflow channel is opened on the first shell and/or the second shell.

Implement the utility model discloses following beneficial effect has at least: the heating portion is capable of heating the aerosol-generating substrate after the extractor and the host are docked; after the heating is completed, the extractor and the host machine can be separated, and the heating portion is separated from the aerosol-generating substrate, so that the aerosol-generating substrate can be conveniently and quickly pulled out of the extractor without damaging the aerosol-generating substrate, and the medium on the aerosol-generating substrate is prevented from remaining in the aerosol-generating device.

Drawings

The invention will be further explained with reference to the drawings and examples, wherein:

fig. 1 is a schematic cross-sectional view of an aerosol generating device according to a first embodiment of the present invention, with an extractor in a first position;

FIG. 2 is a schematic cross-sectional view of the aerosol generating device of FIG. 1 with the extractor in a second position;

FIG. 3 is a schematic cross-sectional view of an aerosol generating device according to a second embodiment of the present invention, with an extractor in a first position;

FIG. 4 is a schematic cross-sectional view of the aerosol generating device of FIG. 3 with the extractor in a second position;

FIG. 5 is a schematic cross-sectional view of an aerosol generating device according to a third embodiment of the present invention, with an extractor in a first position;

FIG. 6 is a schematic cross-sectional view of the aerosol generating device of FIG. 5 with the boss abutting the flange;

FIG. 7 is a schematic cross-sectional view of the aerosol generating device of FIG. 5 with the extractor in a second position;

fig. 8 is a schematic cross-sectional view of the aerosol generating device of fig. 5 in another direction.

Detailed Description

In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Fig. 1-2 show an aerosol generating device according to a first embodiment of the present invention, which may be generally cylindrical and includes an extractor 1, a main body 2 detachably disposed above the extractor 1 in a longitudinal direction, and a heating member 22 disposed on the main body 2. The aerosol generating device may heat the aerosol-generating substrate 3 in a non-combustible manner by low temperature heating to form a smoke which may be drawn by a user. It will be appreciated that the aerosol generating device is not limited to being cylindrical, and may be other shapes such as a square column. In this embodiment, the aerosol-generating substrate 3 may be a tobacco rod.

Extractor 1 may in some embodiments comprise a first casing 11 and a first magnet 13, which is annular and is tightly embedded in the bottom of first casing 11. The inner wall surface of the first housing 11 defines a receiving space 110 for receiving the aerosol-generating substrate 3, the top of the receiving space 110 is open, a bottom wall 112 is formed at the bottom of the receiving space 110, and the bottom wall 112 is provided with a socket 111 for inserting the heating element 22. The aerosol-generating substrate 3 may be inserted into the receptacle 110 from the open top of the receptacle 110 and against the bottom wall 112.

The main body 2 may include a second housing 21, a heating member 22, a seat 24, and a second magnet 23 in some embodiments. The second housing 21 may be provided with electronic components such as a battery and a circuit board for supplying power to the heating element 22 and controlling the whole aerosol generating device to be turned on or off.

The seat 24 may be embedded in the upper end of the second housing 21 along the longitudinal direction, and may include a cylindrical sidewall 2411 and a circular plate-shaped top wall 2412 integrally combined with the top of the sidewall 2411. Two circumferential sides of the sidewall 2411 are respectively protruded outward to form a clamping platform 2413, an inner wall surface of the second housing 21 is recessed to form a clamping groove 211 corresponding to the clamping platform 2413, and the clamping platform 2413 and the clamping groove 211 are buckled with each other to buckle and fix the seat body 24 in the second housing 21. The seat body 24 and the second shell 21 are fixed in a plugging and inner buckling connection mode, so that the device is convenient and reliable, and the external part of the host machine 2 is exposed without buckling positions, so that the device is more attractive. The second magnet 23 is annular and can be tightly embedded in the sidewall 2411 and abut against the lower end surface of the seat 24. The first magnet 13 and the second magnet 23 may be magnets that attract each other, or may be other magnetic elements (e.g., iron, cobalt, nickel).

The heating member 22 is embedded in the top wall 2412 in the longitudinal direction, and may include a heating portion 211 extending into the receiving space 110 for heating the aerosol-generating substrate 3. The heating portion 211 may extend from the insertion opening 111 at the bottom of the receiving space 110 into the receiving space 110 and be inserted into the aerosol-generating substrate 3 to bake and heat the aerosol-generating substrate 3. The heating element 22 may be in the form of a sheet or rod and the upper end of the heating element 22 may be provided with a pointed guide formation to facilitate insertion into the aerosol-generating substrate 3. The shape of the socket 111 may correspond to the shape of the cross-section of the heating portion 211, and the cross-sectional size of the socket 111 may be slightly larger than the cross-sectional size of the heating portion 211, so that the heating portion 211 is in clearance fit with the socket 111 to facilitate insertion and withdrawal of the heating portion 211, and when the heating portion 211 is separated from the aerosol-generating substrate 3, the bottom wall 112 may scrape off residual substances on the heating portion 211, such as heated aerosol-generating substrate adhered to the heating portion 211, by friction, to clean the heating portion 211. In the present embodiment, the heating member 22 is a sheet shape, and the socket 111 is a rectangle having a cross-sectional size slightly larger than that of the heating portion 211. It is understood that in other embodiments, the heating member 22 may be detachably and detachably disposed on the main body 2.

The extractor 1 has a first position interfacing with the host 2 and a second position separated from the host 2. When the extractor 1 and the main unit 2 are butted, the first housing 11 and the second housing 21 are butted and abutted against each other, the first magnet 13 at the bottom of the first housing 11 and the second magnet 23 at the top of the second housing 21 are close to each other and adsorbed, the extractor 1 and the main unit 2 are fixed to each other by the attraction force between the first magnet 13 and the second magnet 23, and the heating member 22 is inserted from the socket 111 at the bottom of the extractor 1, so that the heating portion 211 is completely inserted into the accommodating space 110. The aerosol-generating substrate 3 is loaded from the top of the extractor 1 and a battery in the main body 2 supplies power to the heating element 22, and the heating element 22 heats the aerosol-generating substrate 3 by baking it after it is energized.

After the aerosol-generating substrate 3 is heated, the extractor 1 is pulled upwards, the first magnet 13 is separated from the second magnet 23, the extractor 1 is separated from the main machine 2 immediately, at this time, there is no connection between the extractor 1 and the main machine 2, the extractor 1 drives the aerosol-generating substrate 3 to move upwards through the bottom wall 112 of the accommodating space 110, so that the heating portion 211 is withdrawn from the aerosol-generating substrate 3, and simultaneously, the bottom wall 112 scrapes residual substances adhered to the outside of the heating portion 211.

Fig. 3 to 4 show an aerosol-generating device according to a second embodiment of the present invention, which is different from the first embodiment mainly in that in the present embodiment, a circular tube-shaped extraction tube 12 is formed by extending the top wall of the first housing 11, and the inner sidewall of the extraction tube 12 defines a receiving space 110 for receiving the aerosol-generating substrate 3. In addition, in the present embodiment, the holder body 24 may include a base 241 embedded in the second housing 21 and a cylindrical cover 243 formed by extending the top wall 2412 of the base 241 upward. The cover 243 covers the heating element 22 to prevent the heating element 22 from being damaged by the lateral movement of the first housing 11 when the extractor 1 and the main body 2 are mated. The cover 243 is provided between the first casing 11 and the extraction pipe 12, and has a space between the inner wall surface of the first casing 11 and the outer wall surface of the extraction pipe 12. In some embodiments, the distance between the cover 243 and the inner wall surface of the first housing 11 and the outer wall surface of the extraction tube 12 may be 0.5 to 5mm, preferably 3 to 5mm, respectively.

Fig. 5 to 7 show an aerosol-generating device according to a third embodiment of the present invention, which is different from the second embodiment mainly in that in the present embodiment, the extraction tube 12 includes a fixed tube 121 and a movable tube 122 sleeved with each other and capable of sliding along an axial direction, and inner wall surfaces of the fixed tube 121 and the movable tube 122 jointly define a receiving space 110 for receiving the aerosol-generating substrate 3.

Specifically, in the present embodiment, the fixing tube 121 is tightly embedded at an upper end thereof on the top wall of the first housing 11, and may be fixed to the first housing 11 by a screw connection, a snap connection, or the like. The movable tube 122 is sleeved outside the lower end of the fixed tube 121 in an axially upward and downward sliding manner, and the bottom wall of the movable tube 122 forms the bottom wall 112 of the accommodating space 110. The top of the movable tube 122 extends inwards to form a flange 1221, the outer ring of the lower end of the fixed tube 121 extends outwards to form a boss 1211, and the flange 1221 and the boss 1211 are matched with each other to prevent the fixed tube 121 and the movable tube 122 from being separated when sliding mutually. In some embodiments, the movable tube 122 is slidable relative to the fixed tube 121 by a stroke of 2.5-5.5 mm, such as about 4.5 mm.

The outside upper end of host computer 2 can be formed with first joint portion, and the bottom of extractor 1 is inside to be formed with the second joint portion of the mutual joint complex of first joint portion, and wherein, the axial length less than or equal to movable tube 122 of first joint portion is for the slip stroke of fixed pipe 121. Specifically, in the present embodiment, the seat body 24 may include a base 241 embedded in the second housing 21, a socket 242 formed by extending a top wall of the base 241 upwards, and a cover 243 formed by extending a top wall of the socket 242 upwards, and inner diameters and outer diameters of the base 241, the socket 242, and the cover 243 are sequentially decreased progressively. The outer wall of the sleeve portion 242 forms a first clamping portion, the first magnet 13 forms a second clamping portion, and when the extractor 1 and the main unit 2 are assembled, the first magnet 13 is tightly sleeved outside the sleeve portion 242, so that the stability of the combination between the extractor 1 and the main unit 2 can be improved. The axial length of the socket 242 is smaller than the sliding stroke of the movable tube 122 with respect to the fixed tube 121. In some embodiments, the axial length of the socket 242 may be 1-2.5 mm, preferably about 2 mm. In other embodiments, the first magnet 13 and the second magnet 23 may not be disposed between the extractor 1 and the main machine 2, and the extractor 1 and the main machine 2 are connected by being sleeved with each other, for example, the bottom of the first housing 11 may be directly sleeved outside the sleeved portion 242, and at this time, the second clamping portion may be formed by extending the inner wall surface of the bottom end of the first housing 11 inward.

The sleeve 242 is provided with a through hole 2421 through which the heating part 211 can pass, and the heating part 211 can be inserted into the aerosol-generating substrate 3 through the through hole 2421 and the socket 111 in sequence. In the present embodiment, the cross-sectional shape and size of the perforations 2421 conform to the cross-sectional shape and size of the socket 111, and the wall of the perforations 2421 may also scrape residual materials from the heating portion 211 by friction when the heating portion 211 is separated from the aerosol-generating substrate 3. In other embodiments, the cross-sectional dimension of the perforations 2421 can also be larger than the cross-sectional dimension of the receptacle 111. In other embodiments, the cross-sectional shape of the perforations 2421 may also be different than the cross-sectional shape of the socket 111.

Taking the sliding stroke of the movable tube 122 relative to the fixed tube 121 as 4.5mm and the axial length of the sleeve part 242 as 2mm as an example, as shown in fig. 5, when the extractor 1 is at the first position, the extractor 1 and the main body 2 are butted with each other, at this time, the first magnet 13 of the extractor 1 is sleeved outside the sleeve part 242 of the main body 2 and attracted to the second magnet 23, the lower end surface of the movable tube 122 abuts against the top wall of the sleeve part 242, the lower end surface of the fixed tube 121 abuts against the bottom wall 112 of the movable tube 122, the aerosol-generating substrate 3 is loaded from the top of the fixed tube 121 to abut against the bottom wall 112 of the movable tube 122, the heating part 211 of the heating member 22 extends from the socket 111 at the bottom of the movable tube 122 and is inserted into the aerosol-generating substrate 3, and the aerosol-generating substrate 3 is baked and heated after being energized and heated.

After the aerosol generating substrate 3 is heated, the first shell 11 is pulled upwards, the first shell 11 drives the fixed tube 121 and the first magnet 13 to move upwards, when the displacement of the upward movement exceeds 2mm, the first magnet 13 is separated from the sleeve joint part 242, so that the extractor 1 is separated from the host machine 2, at the moment, the movable tube 122, the aerosol generating substrate 3 and the heating element 22 are kept static relatively because the boss 1211 on the fixed tube 121 is not moved upwards to be in contact with the flange 1221 on the movable tube 122; as shown in fig. 6, when the first housing 11 is further pulled upward to reach a displacement of 4.5mm, the boss 1211 moves upward to abut against the flange 1221, and at this time, the first housing 11 is further pulled, the fixed tube 121 will drive the movable tube 122 to move upward together, and further drive the aerosol-generating substrate 3 upward through the bottom wall 112 of the movable tube 122; then, the first housing 11 is continuously pulled upward so that the aerosol-generating substrate 3 is separated from the heating portion 211, as shown in fig. 7, while the residual substances adhered to the outside of the heating portion 211 may also be scraped by the bottom wall 112.

As shown in fig. 8, the aerosol generating device in this embodiment may further include an inner seat 25 embedded in the seat body 24, and the inner seat 25 and the seat body 24 together form a base assembly for inserting the heating element 22 and supporting the extractor 1. The second magnet 23 can be tightly embedded in the inner seat 25, and the first magnet 13 is sleeved outside the sleeve portion 242 and forms a ventilation gap 130 with the top surface of the base portion 241. An air flow channel 240 surrounding the heating element 22 is formed between the upper end surface of the inner seat 25 and the lower end surface of the sleeve part 242, and two opposite sides of the bottom side wall of the sleeve part 242 are respectively provided with an air vent 2420 communicated with the air flow channel 240. An air inlet hole 120 is formed on each of two opposite sides of the bottom of the side wall of the first housing 11, and external air can enter the air flow channel 240 through the air inlet hole 120, the air vent gap 130, and the air vent 2420 in sequence to cool the base assembly, and then the air with heat can be brought into the aerosol generating substrate 3 in the accommodating space 110 through the perforation 2421 and the socket 111 in sequence.

It is understood that in other embodiments, the air inlet hole 120 may be opened on the side wall or the bottom wall of the second housing 21. The air gap 130 may not be formed between the bottom surface of the first magnet 13 and the top surface of the base 241, as long as the air flow can flow through the surface of the base assembly to cool the base assembly, for example, the air inlet hole 120 may also be opened on the second housing 21 and located between the seat body 24 and the inner seat 25, and then enter the air flow channel 240 through the gap between the seat body 24 and the inner seat 25. The air flow passage 240 may not surround the heating member 22, for example, the air intake hole 120 may be opened at the bottom of the second housing 21, and the air flow passage 240 extends in the longitudinal direction and is parallel to the longitudinal direction of the heating member 22.

It is to be understood that the above-described respective technical features may be used in any combination without limitation.

The above examples only represent the preferred embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the invention; it should be noted that, for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims

1. An aerosol-generating device, comprising a main body (2), an extractor (1) provided separately from the main body (2), and a heating member (22) provided on the main body (2), wherein a receiving space (110) for receiving an aerosol-generating substrate (3) is formed in the extractor (1), and the heating member (22) comprises a heating portion (211) for inserting into the receiving space (110) inside the aerosol-generating substrate (3);

wherein the heating portion (211) is capable of heating the aerosol-generating substrate (3) when the extractor (1) is in the first position; when the extractor (1) is in the second position, the extractor (1) is separated from the host machine (2) such that the heating portion (211) is separated from the aerosol-generating substrate (3).

2. An aerosol generating device according to claim 1, wherein the extractor (1) is in contact with the host machine (2) when the extractor (1) is in the first position; when the extractor (1) is at the second position, the heating part (211) at least partially escapes from the accommodating space (110).

3. An aerosol-generating device according to claim 1 or 2, wherein a bottom wall (112) against which the aerosol-generating substrate (3) abuts is formed at a bottom of the receiving space (110), and a socket (111) for inserting the heating portion (211) is opened on the bottom wall (112); when the extractor (1) is in the first position, the heating part (211) can be completely inserted into the receiving space (110).

4. An aerosol-generating device according to claim 3, wherein the shape of the socket (111) corresponds to the shape of the cross-section of the heating portion (211), the heating portion (211) being clearance-fitted in the socket (111).

5. An aerosol-generating device according to claim 1, 2 or 4 in which the heating portion (211) is in the form of a sheet or rod, the end of the heating portion (211) being provided with a pointed guide formation to facilitate insertion into the aerosol-generating substrate (3).

6. An aerosol-generating device according to claim 3, wherein the extractor (1) comprises a first housing (11), the first housing (11) having the receiving space (110) formed therein; the main machine (2) comprises a second shell (21), and the first shell (11) is detachably arranged above the second shell (21) along the longitudinal direction.

7. An aerosol-generating device according to claim 6, wherein the extractor (1) further comprises an extraction tube (12) disposed in the first housing (11) in a longitudinal direction, an inner wall surface of the extraction tube (12) defining the receiving space (110).

8. An aerosol-generating device according to claim 7, wherein the extractor (1) further comprises a first magnet (13) disposed at the bottom of the first housing (11), and the main body (2) further comprises a second magnet (23) disposed at the top of the second housing (21); when the extractor (1) is butted with the host (2), the first magnet (13) and the second magnet (23) are close to each other and adsorbed.

9. The aerosol generation device according to claim 8, wherein a cylindrical cover member (243) that covers the heating portion (211) is provided at an upper end of the main unit (2), and the cover member (243) has a gap between an inner wall surface of the first housing (11) and an outer wall surface of the extraction pipe (12).

10. The aerosol generating device according to claim 7, wherein the extraction pipe (12) is integrally formed by extending downward from a top wall of the first housing (11), or the extraction pipe (12) and the first housing (11) are separately manufactured and the extraction pipe (12) is assembled with the top wall of the first housing (11).

11. The aerosol generating device according to claim 7, wherein the extraction tube (12) comprises a fixed tube (121) fixed on the first housing (11) and a movable tube (122) slidably sleeved on a lower end of the fixed tube (121) along an axial direction, inner wall surfaces of the fixed tube (121) and the movable tube (122) jointly define the accommodating space (110), and a bottom of the movable tube (122) forms the bottom wall (112) and the socket (111).

12. The aerosol generating device of claim 11, wherein the lower end of the fixed tube (121) extends outward to form a boss (1211), the top of the movable tube (122) extends inward to form a flange (1221), and the flange (1221) cooperates with the boss (1211) to retain the boss (1211) below the flange (1221).

13. The aerosol generating device according to claim 11, wherein the main body (2) comprises a sleeve portion (242), the bottom of the extractor (1) is sleeved outside the sleeve portion (242), and the axial length of the sleeve portion (242) is less than or equal to the sliding stroke of the movable tube (122) relative to the fixed tube (121).

14. The aerosol generating device according to claim 11, wherein a first clamping portion with an axial height smaller than a sliding stroke of the movable tube (122) relative to the fixed tube (121) is formed outside an upper end of the main body (2), and a second clamping portion mutually clamped and matched with the first clamping portion is formed inside a bottom end of the extractor (1).

15. The aerosol generating device according to claim 14, wherein the main body (2) comprises a base portion (241) embedded at the top of the second housing (21), a sleeve portion (242) extending upward from the top wall of the base portion (241), and a cover body (243) extending upward from the top wall of the sleeve portion (242), wherein the outer wall surface of the sleeve portion (242) forms the first clamping portion, and the cover body (243) covers the heating portion (211) and is spaced from the inner wall surface of the first housing (11) and the outer wall surface of the extraction tube (12);

the extractor (1) further comprises a first magnet (13) embedded at the bottom of the first shell (11), the first magnet (13) forms the second clamping portion, and a second magnet (23) is arranged in the main machine (2) corresponding to the first magnet (13).

16. An aerosol generating device according to claim 13 or 15, wherein, after the extractor (1) and the main machine (2) are docked, the lower end face of the movable tube (122) abuts against the top wall of the socket (242), and the lower end face of the fixed tube (121) abuts against the bottom wall (112).

17. An aerosol generating device according to any one of claims 6 to 15, wherein the main body (2) further comprises a base assembly embedded in the top of the second housing (21) and the heating element (22) inserted into the base assembly, and the upper end of the heating element (22) forms the heating portion (211).

18. The aerosol generating device as claimed in claim 17, wherein the base assembly has an air flow channel (240) formed therein and surrounding the heating element (22) and communicating with the receiving space (110), and the first housing (11) and/or the second housing (21) has at least one air inlet hole (120) formed therein and communicating with the air flow channel (240).