WO2023024908A1

WO2023024908A1 - Aerosol generating apparatus

Info

Publication number: WO2023024908A1
Application number: PCT/CN2022/111519
Authority: WO
Inventors: 张幸福; 王威
Original assignee: 深圳麦时科技有限公司
Priority date: 2021-08-25
Filing date: 2022-08-10
Publication date: 2023-03-02
Also published as: CN113712272A; EP4393330A1

Abstract

An aerosol generating apparatus, comprising a body (1), an extractor (2) that is slidably sleeved on the body (1) and that is internally provided with an accommodating space (220) for accommodating an aerosol-forming matrix (200), and a heating body (14) which is disposed on the body (1) and one end of which is capable of extending into the accommodating space (220). The extractor (2) comprises an elastic component (23); when the extractor (2) is in a connected state with the body (1), the aerosol-forming matrix (200) is located at a first position that can be heated by the heating body (14); and when the extractor (2) is in a separated state from the body (1), the heating body (14) is at least partially disengaged from the accommodating space (220), so that the aerosol-forming matrix (200) is located at a second position that is at least partially separated from the heating body (14), and the elastic assembly (23) is used to change the length of the accommodating space (220) during a process in which the extractor (2) and the body (1) separate from being connected.

Description

Aerosol generating device

technical field

The invention relates to the field of atomization, and more specifically, relates to an aerosol generating device.

Background technique

The heat-not-burn atomizing device is an aerosol generating device that heats the atomized material by a low-temperature heat-not-burn method to form an inhalable aerosol. At present, heat-not-burn atomizing devices usually use a heater such as a heating plate inserted into the aerosol-forming substrate for heating. By controlling the heating temperature, the components in the aerosol-forming substrate are volatilized to generate aerosol for inhalation.

When an aerosol-forming substrate is heated for a certain period of time and the amount of aerosol it produces reaches the upper limit, it is necessary to pull out the aerosol-forming substrate from the atomization device, or stop the suction, or replace it with a new aerosol-forming substrate Keep pumping. At this time, how to pull out the aerosol-forming substrate from the atomization device conveniently and quickly without damaging the aerosol-forming substrate and leaving no residue on the heater becomes a crucial issue. In the existing heat-not-burn atomizing device, the aerosol-forming substrate is generally taken out from the atomizing device by manual pulling. Due to the different force of the user, the pulling force is also very different. Many users often cause the aerosol-forming matrix to break when pulling, or the aerosol-forming matrix and the contact part of the heater are adhered to form on the heater. Residues will affect the heating effect of the next use, such as burning smell.

technical problem

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

technical solution

The technical solution adopted by the present invention to solve the technical problem is to construct an aerosol generating device, including a fuselage, which is slidably sleeved on the fuselage and has a storage space inside for accommodating the extraction of aerosol-forming substrates. A device and a heating body arranged on the fuselage and one end of which can extend into the accommodation space;

The extractor includes an elastic component; when the extractor is connected to the fuselage, the aerosol-forming substrate is located at a first position capable of being heated by the heating body; When the fuselage is separated, the heating body is at least partially released from the receiving space, so that the aerosol-forming substrate is located at a second position at least partially separated from the heating body, and the elastic component is used for The extractor and the fuselage change the length of the containing space during the process of being connected to separated.

In some embodiments, the extractor includes an upper cover, a fixed tube fixedly connected to the upper cover, and a movable tube slidably sleeved on the fixed tube, and the fixed tube and the inner part of the movable tube The walls jointly define the receiving space.

In some embodiments, two ends of the elastic component are respectively connected to the fixed tube and the movable tube.

In some embodiments, the fixed tube and the movable tube are provided with interfitting limiting structures.

In some embodiments, the limiting structure includes a first limiting protrusion located below and formed on the fixed tube and a second limiting protrusion located above and formed on the movable tube; Two ends of the elastic component respectively abut against the first limiting protrusion and the second limiting protrusion.

In some embodiments, a cooperating limiting guide structure is formed between the fixed tube and the movable tube, for guiding when the movable tube slides relative to the fixed tube and limiting the movable tube. The relative circumferential position between the tube and the fixed tube.

In some embodiments, the position-limiting guide structure includes a guide groove and a guide protrusion slidably fitted in the guide groove; Side sliding contact fit.

In some embodiments, the movable tube is slidably sleeved in the fixed tube.

In some embodiments, the fixed tube includes an outer tube, the inner diameter of the outer tube is larger than the outer diameter of the movable tube, the movable tube is slidably sleeved in the outer tube, and the elastic component is sleeved between the inner wall of the outer tube and the outer wall of the movable tube.

In some embodiments, the fixed tube further includes an inner tube disposed in the outer tube; the movable tube includes a first tube section, and the inner tube detachably abuts against an upper end surface of the first tube section .

In some embodiments, the movable pipe further includes a second pipe section extending upward from the first pipe section, the inner diameter and outer diameter of the second pipe section are respectively larger than the inner diameter and outer diameter of the first pipe section, the A second tube section is slidably fitted between the inner tube and the outer tube.

In some embodiments, the inner diameter of the inner tube is consistent with the inner diameter of the first tube section.

In some embodiments, the movable tube is slidably sleeved outside the fixed tube, and the elastic component is sleeved between the inner wall of the movable tube and the outer wall of the fixed tube.

In some embodiments, a guide part is formed on the upper end of the fuselage, the upper cover is slidably sleeved outside the guide part and is in sliding contact with the guide part, and the upper cover is in contact with the guide part. The guide part is at any position when the sliding contact is engaged, and the aerosol-forming substrate is located at the first position; the upper cover and the guide part are at any position when the sliding contact is separated, and the aerosol-forming substrate is located at the first position. The second position; the axial length of the guide part is less than or equal to the maximum sliding stroke of the movable tube relative to the fixed tube.

In some embodiments, the aerosol generating device further includes a tube cover formed by extending upward from the guide part, and the tube cover is arranged between the upper cover and the fixing tube, and is connected to the upper cover respectively. A space is formed between the inner wall surface of the cover and the outer wall surface of the fixing pipe.

In some embodiments, the movable tube includes a bottom wall, and the bottom wall is provided with a socket for the heating body to pass through.

In some embodiments, the bottom wall is used to support the aerosol-forming substrate inserted into the receiving space, and can push the aerosol-forming substrate to move, so that the aerosol-forming substrate is separated from the heating body .

In some embodiments, the shape of the socket corresponds to the shape of the cross-section of the heating body, and the heating body is clearance-fitted in the socket.

In some embodiments, the heating body is in the shape of a sheet or a rod.

In some embodiments, the heating body is resistance heating or electromagnetic heating.

Beneficial effect

Implementing the present invention has at least the following beneficial effects: after the extractor and the fuselage are docked, the heating body can heat the aerosol-forming matrix; after the extractor and the fuselage are separated, the heating body can be separated from the aerosol-forming matrix, thereby facilitating The aerosol-forming substrate is quickly taken out from the aerosol generating device without damaging the aerosol-forming substrate, and the medium on the aerosol-forming substrate is prevented from remaining in the aerosol generating device.

Description of drawings

The present invention will be further described below in conjunction with accompanying drawing and embodiment, in the accompanying drawing:

1 is a schematic diagram of the three-dimensional structure of the aerosol generating device inserted with an aerosol forming substrate in the first embodiment of the present invention;

Fig. 2 is a schematic diagram of an exploded structure of the aerosol generating device shown in Fig. 1;

Fig. 3 is a schematic diagram of an exploded structure of the extractor in Fig. 2;

Fig. 4 is a schematic cross-sectional structure diagram when the upper cover of the aerosol generating device shown in Fig. 1 is docked with the fuselage;

Fig. 5 is a schematic cross-sectional structure diagram when the upper cover of the aerosol generating device shown in Fig. 1 is just separated from the fuselage;

Fig. 6 is a schematic cross-sectional structure diagram of the aerosol generating device shown in Fig. 1 when the aerosol forming substrate is separated from the heating element;

Fig. 7 is a schematic cross-sectional structure diagram of the aerosol generating device in the second embodiment of the present invention when the upper cover is docked with the fuselage.

Embodiments of the present invention

In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.

Figures 1-6 show the aerosol generating device 100 in the first embodiment of the present invention, which can be used to bake and heat the aerosol-forming substrate 200 inserted therein, so as not to burn The state releases the aerosol extract in the aerosol-forming matrix. The aerosol-forming substrate 200 may be cylindrical and include an atomizing section 201, which may include a solid substrate of plant leaves. Further, the aerosol-forming substrate 200 may also include a hollow supporting section 202 , a cooling section 203 and a filtering section 204 arranged longitudinally above the atomizing section 201 in sequence. The aerosol generating device 100 may be roughly in the shape of a square column, and the top of the aerosol generating device 100 is provided with an insertion opening 210 whose shape and size are adapted to the aerosol-forming substrate 200 . It can be understood that the aerosol generating device 100 is not limited to be in the shape of a square column, and it can also be in other shapes such as a cylinder, an ellipse, and the like.

The aerosol generating device 100 may include a host 1 and an extractor 2 detachably arranged above the host 1 along the longitudinal direction. Wherein, the interior of the extractor 2 is formed with a storage space 220 for housing the aerosol-forming substrate 200 , and the aerosol-forming substrate 200 can be inserted into the storage space 220 through the insertion port 210 . The host 1 may include a body 11 , a heating body 14 disposed in the body 11 , a motherboard 16 disposed in the body 11 , and a battery 17 disposed in the body 11 . The main board 16 is electrically connected to the battery 17 and the heating body 14 respectively. Related control circuits are arranged on the main board 16 , and the main board 16 can be activated to control the battery 17 to supply power to the heating body 14 by means of a switch 19 arranged on the body 11 . The upper end of the heating body 14 can extend into the receiving space 220 and be inserted into the aerosol-forming substrate 200 to be in close contact with the aerosol-forming substrate 200 . After the heating body 14 is energized to generate heat, it can transfer heat to the aerosol-forming substrate 200 , thereby realizing the baking and heating of the aerosol-forming substrate 200 . The heating body 14 may be a resistance heating body, or may also be a metal induction heating body capable of generating heat in a changing magnetic field. The heating body 14 can be in the form of a sheet or a rod, and the upper end of the heating body 14 can be provided with a pointed guide structure, which facilitates insertion into the aerosol-forming substrate 200 .

The extractor 2 may include an upper cover 21 detachably sleeved on the body 11 , a receiving component 22 disposed in the upper cover 21 , and an elastic component 23 disposed in the upper cover 21 . When the extractor 2 is connected to the body 11 , the aerosol-forming substrate 200 is located at a first position capable of being heated by the heating body 14 . When the extractor 2 is separated from the main body 11 , the heating body 14 is at least partially released from the receiving space 220 , so that the aerosol-forming substrate 200 is located at a second position at least partially separated from the heating body 14 . The elastic component 23 is used to change the length of the receiving space 220 when the extractor 2 and the fuselage 11 are connected to separated.

Specifically, the housing assembly 22 may include a fixed tube 221 located above and fixedly connected to the upper cover 21 and a movable tube 222 located below and slidably sleeved on the fixed tube 221. The inner walls of the fixed tube 221 and the movable tube 222 are common. A containment space 220 is defined. The movable tube 222 is slidably sleeved on the lower part of the fixed tube 221 along the longitudinal direction, and can be arranged coaxially with the fixed tube 221 . The active tube 222 includes a bottom wall 2221 for supporting the aerosol-forming substrate 200 . The aerosol-forming substrate 200 can be inserted into the receiving space 220 through the insertion opening 210 and lean against the bottom wall 2221 . The bottom wall 2221 is provided with a socket 2220 through which the heating body 14 can pass. The shape of the socket 2220 can correspond to the shape of the cross-section of the heating body 14, and the cross-sectional size of the socket 2220 can be slightly larger than the cross-section of the heating body 14. Size, so that the heating body 14 and the socket 2220 clearance fit, to facilitate the insertion and withdrawal of the heating body 14, and when the heating body 14 is separated from the aerosol-forming matrix 200, the bottom wall 2221 can be scraped off the heating body 14 by friction Adhesive residual substances, the heating body 14 is cleaned. In this embodiment, the heating body 14 is in the shape of a sheet, and the socket 2220 is a rectangle whose cross-sectional dimension is slightly larger than that of the heating body 14 . The lower end of the heating body 14 can be embedded in the heating seat 15 , and then inserted into the top of the fuselage 11 via the heating seat 15 .

The fixed tube 221 can be fixedly connected to the inner side of the top wall of the upper cover 21 through screw connection, buckle connection, magnetic connection, etc., and the movable tube 222 is slidably sleeved in the fixed tube 221 . In other embodiments, the fixing tube 221 can also be integrally formed with the upper cover 21 , for example, the fixing tube 221 can also be integrally extended downwards from the inner side of the top wall of the upper cover 21 in the longitudinal direction. The fixed tube 221 and the movable tube 222 can also be provided with mutually cooperating limiting structures, so as to prevent the two from being separated when sliding. In some embodiments, the limiting structure may include a first limiting protrusion 2213 located below and extending radially inward from the inner wall of the fixed tube 221 ; A second limiting protrusion 2223 is formed extending outward. Both ends of the elastic component 23 are respectively connected to the fixed tube 221 and the movable tube 222 , the upper end of the elastic component 23 can lean against the second limiting protrusion 2223 , and the lower end can lean against the first limiting protrusion 2213 . The elastic component 23 can keep the movable tube 222 from moving when the receiving component 22 is not inserted into the aerosol-forming substrate 200 .

In some embodiments, the fixing tube 221 may include an outer tube 2211 and an inner tube 2212 sheathed in the outer tube 2211 . The movable tube 222 is slidably sleeved in the outer tube 2211 , and the lower end of the outer tube 2211 extends radially inward to form a first limiting protrusion 2213 . The inner diameter of the outer tube 2211 may be larger than the outer diameter of the inner tube 2212 .

In some embodiments, the movable pipe 222 may include a first pipe section 2222 located at the lower part and a second pipe section 2224 located at the upper part and connected to the first pipe section 2222 . The second tube section 2224 is slidably sleeved between the outer tube 2211 and the inner tube 2212 . The outer diameter of the second pipe section 2224 is larger than the outer diameter of the first pipe section 2222 and is compatible with the inner diameter of the outer pipe 2211 , that is, the outer wall of the second pipe section 2224 is in sliding contact with the inner wall of the outer pipe 2211 . The step surface formed between the second pipe section 2224 and the first pipe section 2222 forms a second limiting protrusion 2223 . An installation space for installing the elastic component 23 is formed between the inner wall surface of the outer tube 2211 and the outer wall surface of the first pipe section 2222 . The elastic component 23 can be a spring and is sheathed between the inner wall of the outer tube 2211 and the outer wall of the first tube section 2222 .

The inner diameter of the first tube section 2222 may be equal or substantially equal to the inner diameter of the inner tube 2212 , and the first tube section 2222 is axially disposed below the inner tube 2212 . The inner diameter of the second tube section 2224 is adapted to the outer diameter of the inner tube 2212 , that is, the outer wall of the inner tube 2212 can be in sliding contact with the inner wall of the second tube section 2224 . The second pipe section 2224 and the inner pipe 2212 can also be provided with at least one limit guide structure that cooperates with each other, for guiding when the movable pipe 222 slides, and limiting the relative circumferential position between the movable pipe 222 and the inner pipe 2212 . In this embodiment, there are two position-limiting guide structures, and the two position-limiting guide structures are respectively located on two opposite sides of the receiving space 220 . The limiting guide structure may include a guide groove 2225 extending longitudinally and a guide protrusion 2214 slidably fitted in the guide groove 2225 . Specifically, in this embodiment, the guide groove 2225 is penetratingly opened on the second pipe section 2224 and can extend downward from the top wall of the second pipe section 2224 to near its bottom, and the guide protrusion 2214 faces outward from the outer wall of the inner pipe 2212 extension formed. There may be two guide protrusions 2214, and the two guide protrusions 2214 are respectively in sliding contact with two sides of the guide groove 2225 in the circumferential direction. The axial length of the guide groove 2225 is greater than the maximum sliding stroke of the movable tube 222 relative to the fixed tube 221 , so as to prevent the guide protrusion 2214 from coming out of the guide groove 2225 when the upper cover 21 is separated from the fuselage 11 . In other embodiments, there may be only one guide protrusion 2214 , and the circumferential two sides of the one guide protrusion 2214 are respectively in sliding contact with the circumferential two sides of the guide groove 2225 .

The upper end of the fuselage 11 is formed with a guide portion 181, the lower end of the upper cover 21 is slidably sleeved on the guide portion 181, and the inner wall surface of the upper cover 21 is in sliding contact with the inner wall surface of the guide portion 181. The upper cover 21 and the body 11 play a guiding role in the process of moving from the connected state to the separated state. When the upper cover 21 and the guide part 181 are in any position when the sliding contact fits, the aerosol-forming substrate 200 is located at the first position capable of being heated by the heating body 14 . When the upper cover 21 and the guide part 181 are in any position where the sliding contact separates, the aerosol-forming substrate 200 is located at the second position at least partially separated from the heating body 14 . The axial height H0 of the guide part 181 is less than or equal to the maximum sliding stroke of the movable pipe 222 relative to the fixed pipe 221. In this embodiment, the axial height H0 of the guide part 181 is equal to the maximum sliding stroke of the movable pipe 222 relative to the fixed pipe 221 equal. The top of the guide part 181 can also extend upwards to form a cylinder cover 182, which is set outside the heating body 14, and the cylinder cover 182 can prevent the upper cover 21 from being pressed by the lateral movement of the upper cover 21 when it is docked with the fuselage 11. The heating body 14 is destroyed. The cylinder cover 182 is disposed between the upper cover 21 and the outer tube 2211 , and has intervals from the inner wall of the upper cover 21 and the outer wall of the outer tube 2211 . Specifically, the guide part 181 and the cylinder cover 182 are both hollow cylindrical and connected. The outer cross-sectional dimension of the guide part 181 is larger than the outer cross-sectional dimension of the cylinder cover 182, and corresponds to the inner cross-sectional dimension of the upper cover 21. That is, the outer cross-sectional dimension of the barrel cover 182 is smaller than the inner cross-sectional dimension of the upper cover 21 . A support arm 183 can also be formed in the guide portion 181 , and the upper end surface of the support arm 183 can support the receiving component 22 , or can form a gap with the lower end surface of the receiving component 22 . The lower surface of the support arm 183 can press against the heating seat 15 to fix the heating seat 15 .

As shown in Figure 4, the upper cover 21 and the fuselage 11 are docked with each other. At this time, the upper cover 21 is sleeved outside the guide part 181 and contacts with the guide part 181. The matching height of the lower end of the upper cover 21 and the guide part 181 is the The axial height H0 of 181, the lower end surface of the upper cover 21 abuts against the upper end surface of the fuselage 11 , and the upper end of the heating body 14 penetrates the bottom wall 2221 of the movable tube 222 and extends into the receiving assembly 22 . The elastic component 23 is in a semi-compressed state, so that the upper end surface of the movable tube 222 elastically presses against the lower end surface of the inner tube 2212 to prevent the movable tube 222 from shaking. When not in use, that is, when the aerosol-forming substrate 200 is not inserted into the containing component 22 , the total length of the containing component 22 is the initial length L0 , which is the sum of the lengths of the inner tube 2212 and the movable tube 222 .

When suction is required, the aerosol-forming substrate 200 is inserted into the housing assembly 22, the bottom of the aerosol-forming substrate 200 is pierced by the heating body 14, and the bottom of the aerosol-forming substrate 200 is against the bottom wall 2221 of the movable tube 222 Above, the heating body 14 bakes and heats the aerosol-forming substrate 200 after being energized and heated. During the insertion process of the aerosol-forming substrate 200 , usually because the insertion force of the aerosol-forming substrate 200 is very small, the movable tube 222 will not be pushed down, and the total length of the containing component 22 remains at the initial length L0. When the insertion force of the aerosol-forming substrate 200 is relatively large, the aerosol-forming substrate 200 may push the bottom wall 2221 of the movable tube 222 to move the movable tube 222 downward for a small distance, so that the total length of the containing component 22 is slightly increased a little. Return to the original length L0.

After the aerosol-forming substrate 200 is heated, the upper cover 21 is pulled to move upward in a direction away from the fuselage 11 . During the upward movement of the upper cover 21, the matching height between the lower end of the upper cover 21 and the guide part 181 gradually decreases; Moving, the first stop protrusion 2213 of the fixed tube 221 moves upwards to further compress the elastic component 23 , the total length of the containing component 22 increases gradually, and the aerosol-forming substrate 200 and the heating body 14 do not move relative to each other. As shown in Figure 5, when the upper cover 21 is just separated from the fuselage 11, the lower end of the upper cover 21 is just separated from the guide part 181, that is, the upper cover 21 and the guide part 181 slide H0 relative to each other, and at the same time, the fixed tube 221 is relatively movable The tube 222 is also slid by the height of H0, and the total length of the receiving assembly 22 is changed from L0 to L0+H0. As shown in FIG. 6 , when the upper cover 21 continues upward, the movable tube 222 also moves upward along with the upper cover 21 , and the bottom wall 2221 of the movable tube 222 pushes the aerosol-forming substrate 200 to move upward and separate from the heating body 14 .

A dustproof cover 25 for covering or exposing the insertion opening 210 may also be provided on the top of the upper cover 21 . When the aerosol generating device 100 is not needed, the dust-proof cover 25 can be pushed to cover the insertion port 210 to prevent dust from entering the insertion port 210 . When needed, push the dust-proof cover 25 to expose the insertion port 210 , so that the aerosol-forming substrate 200 can be inserted through the insertion port 210 .

FIG. 7 shows the aerosol generating device 100 according to the second embodiment of the present invention. The main difference between it and the first embodiment is that in this embodiment, the movable tube 224 is slidably sleeved outside the fixed tube 223 . Correspondingly, in this embodiment, the elastic component 23 is sleeved between the inner wall of the movable tube 224 and the outer wall of the fixed tube 223 . The first stop protrusion 2231 abutting against the lower end of the elastic component 23 can be formed by extending radially outward from the outer wall surface of the fixed tube 223, and the second stop protrusion 2243 abutting against the upper end of the elastic component 23 can be formed by the movable tube The inner wall surface of 224 is formed by extending radially inward.

Specifically, in this embodiment, the movable pipe 224 may include a first pipe section 2241 located at the lower part and a second pipe section 2242 located at the upper part. The outer diameter and inner diameter of the second pipe section 2242 may be larger than the outer diameter and inner diameter of the first pipe section 2241, respectively. The fixing tube 223 is slidably disposed in the second tube section 2242 , and the lower end of the fixing tube 223 is detachably abutted against the stepped surface formed between the second tube section 2242 and the first tube section 2241 . The inner diameter of the fixing pipe 223 can be consistent with the inner diameter of the first pipe section 2241, so that when the upper cover 21 and the fuselage 11 are docked with each other, the inner wall of the receiving space 220 transitions smoothly. The inner diameter of the second pipe section 2242 is larger than the inner diameter of the fixed pipe 223 , and the elastic component 23 is sleeved between the inner wall of the second pipe section 2242 and the outer wall of the fixed pipe 223 . The first limiting protrusion 2231 can be formed by extending radially outward from the lower outer wall of the fixing tube 223 , and the second limiting protrusion 2243 can be formed by extending radially inward from the upper inner wall of the second pipe section 2242 .

It can be understood that the above technical features can be used in any combination without limitation.

Above embodiment has only expressed the specific implementation manner of the present invention, and its description is comparatively specific and detailed, but can not therefore be interpreted as the limitation of patent scope of the present invention; It should be pointed out that, for those of ordinary skill in the art, in Under the premise of not departing from the concept of the present invention, the above-mentioned technical features can be freely combined, and some deformations and improvements can also be made, which all belong to the protection scope of the present invention; therefore, all equivalent transformations made with the scope of the claims of the present invention All modifications and modifications shall fall within the scope of the claims of the present invention.

Claims

An aerosol generating device, characterized in that it includes a body, an extractor that is slidably sleeved on the body and has a storage space inside to accommodate aerosol-forming substrates, and is arranged on the body and has one end a heating body that can extend into the receiving space;

The extractor includes an elastic component; when the extractor is connected to the fuselage, the aerosol-forming substrate is located at a first position capable of being heated by the heating body; When the fuselage is separated, the heating body is at least partially released from the receiving space, so that the aerosol-forming substrate is located at a second position at least partially separated from the heating body, and the elastic component is used for The extractor and the fuselage change the length of the containing space during the process of being connected to separated.
The aerosol generating device according to claim 1, wherein the extractor comprises an upper cover, a fixed tube fixedly connected to the upper cover, and a movable tube slidably sleeved on the fixed tube, so The inner walls of the fixed tube and the movable tube jointly define the accommodation space.
The aerosol generating device according to claim 2, wherein two ends of the elastic component are respectively connected to the fixed tube and the movable tube.
The aerosol generating device according to claim 2, characterized in that, the fixed tube and the movable tube are provided with interfitting limiting structures.
The aerosol generating device according to claim 4, wherein the limiting structure comprises a first limiting protrusion located below and formed on the fixed tube, and a first limiting protrusion located above and formed on the movable tube The second position-limiting protrusion; the two ends of the elastic component respectively abut against the first position-limiting protrusion and the second position-limiting protrusion.
The aerosol generating device according to claim 2, wherein a position-limiting guide structure cooperating with each other is formed between the fixed tube and the movable tube.
The aerosol generating device according to claim 6, wherein the position-limiting guide structure includes a guide groove and a guide protrusion slidably fitted in the guide groove; the circumferential sides of the guide protrusion They are respectively in sliding contact with the two sides of the guide groove in the circumferential direction.
The aerosol generating device according to claim 2, wherein the movable tube is slidably sleeved in the fixed tube.
The aerosol generating device according to claim 8, wherein the fixed tube comprises an outer tube, the inner diameter of the outer tube is larger than the outer diameter of the movable tube, and the movable tube is slidably sleeved on the In the outer tube, the elastic component is sleeved between the inner wall of the outer tube and the outer wall of the movable tube.
The aerosol generating device according to claim 9, wherein the fixed tube further includes an inner tube disposed in the outer tube; the movable tube includes a first tube segment, and the inner tube detachably abuts against Lean against the upper end surface of the first pipe section.
The aerosol generating device according to claim 10, wherein the movable pipe further comprises a second pipe section extending upward from the first pipe section, and the inner diameter and outer diameter of the second pipe section are respectively larger than the first pipe section. An inner diameter and an outer diameter of a pipe section, the second pipe section is slidably fitted between the inner pipe and the outer pipe.
The aerosol generating device according to claim 10, wherein the inner diameter of the inner tube is consistent with the inner diameter of the first tube section.
The aerosol generating device according to claim 2, wherein the movable tube is slidably sleeved outside the fixed tube, and the elastic component is sleeved on the inner wall of the movable tube and the fixed tube between the outer walls.
The aerosol generating device according to any one of claims 2-13, wherein a guide part is formed on the upper end of the fuselage, and the upper cover is slidably sleeved outside the guide part and fitted with the guide part. The guide part is in sliding contact, and the upper cover is in any position when the guide part is in sliding contact, and the aerosol-forming substrate is located in the first position; the upper cover is in sliding contact with the guide part. At any position during contact and separation, the aerosol-forming substrate is located at the second position; the axial length of the guide part is less than or equal to the maximum sliding stroke of the movable tube relative to the fixed tube.
The aerosol generating device according to claim 14, characterized in that, the aerosol generating device further comprises a tube cover formed by extending upward from the guide part, and the tube cover is arranged on the upper cover and the fixed cover. Spaces are formed between the tubes, and between the inner wall surface of the upper cover and the outer wall surface of the fixed tube.
The aerosol generating device according to any one of claims 2-13, characterized in that the movable tube comprises a bottom wall, and the bottom wall is provided with a socket for the heating body to pass through.
The aerosol generating device according to claim 16, wherein the shape of the socket corresponds to the shape of the cross-section of the heating body, and the heating body is clearance-fitted in the socket.