CN211882187U

CN211882187U - Aerosol generator and pushing mechanism

Info

Publication number: CN211882187U
Application number: CN201922427473.0U
Authority: CN
Inventors: 李亚飞; 袁永宝
Original assignee: Shenzhen Maishi Technology Co Ltd
Current assignee: Shenzhen Maishi Technology Co Ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-11-10
Anticipated expiration: 2029-12-27

Abstract

The utility model relates to a structure aerosol generating device and a pushing mechanism, the aerosol generating device comprises a containing pipe which is fixedly arranged and used for containing cigarettes, and the containing pipe comprises a first end for inserting the cigarettes; aerial fog generating device still include with the admission pipe cooperatees and follows cigarette a pushing mechanism who withdraws from in the admission pipe, pushing mechanism includes the impeller, the impeller include with admission pipe matched with promotion portion, the promotion position in the admission pipe and can with cigarette bottom butt, and relative with the admission pipe is being close to first end the primary importance with keep away from round trip movement between the second place of first end, with the cigarette is followed release in the admission pipe. This aerial fog generating device can release a cigarette from accommodating the pipe, need not the user and receives and extract a cigarette, and then can avoid a cigarette fracture, reduces the composition in a cigarette and remains on heating element.

Description

Aerosol generator and pushing mechanism

Technical Field

The present invention relates to an atomizing device, and more particularly, to an aerosol generating device and a pushing mechanism.

Background

As a new technology, the aerosol generating device replaces the traditional combustion type cigarette with a mode of heating tobacco tar or low-temperature cigarette, the working temperature is low, harmful ingredients in the generated smoke are far less than those in the traditional combustion type cigarette, the aerosol generating device can greatly avoid the adverse effect of the cigarette on human body, and the aerosol generating device becomes a healthier smoking mode. The aerosol generating device on the market at present mainly comprises two types, one is an electronic atomization smoking set capable of smoking smoke through evaporating tobacco tar, and the other is a low-temperature heating smoking set capable of smoking smoke through heating tobacco cigarettes in a low-temperature heating non-combustion mode. For a low-temperature heating smoking set, a heater such as a heating sheet is generally inserted into a cigarette to heat the cigarette, and the heating temperature is controlled to volatilize components in the cigarette so as to generate smoke for a person 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 plurality of users draw cigarettes.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide an improved aerial fog generating device and pushing mechanism.

The utility model provides a technical scheme that its technical problem adopted is: the aerosol generating device comprises a containing pipe which is fixedly arranged and used for containing cigarettes, wherein the containing pipe comprises a first end into which the cigarettes are inserted; aerial fog generating device still include with the admission pipe cooperatees with a cigarette follow the pushing mechanism who withdraws from among the admission pipe, pushing mechanism includes the impeller, the impeller include with admission pipe matched with promotion portion, the promotion position in the admission pipe and can with a cigarette bottom butt, and relative with the admission pipe is being close to the first position of first end with keep away from round trip movement between the second position of first end.

Preferably, the accommodating tube is in a shape of a round tube;

the pushing portion is in a disc shape, and the radial size of the pushing portion is smaller than that of the accommodating pipe.

Preferably, the cigarette holder also comprises a heating component which can be inserted into the cigarette holder;

the pushing part is provided with a through hole for the heating component to penetrate through.

Preferably, the heating assembly comprises a heating sheet which is axially arranged along the accommodating tube so as to be axially inserted into the cigarette;

the heating sheet is arranged on the through hole in a penetrating mode.

Preferably, the pushing mechanism comprises a drive assembly connected to the pusher;

the pusher further includes a connecting portion connecting the pushing portion and the driving assembly.

Preferably, a guide mechanism is further included for guiding the pusher.

Preferably, the guide mechanism comprises a guide groove which is formed on the side wall of the accommodating tube and matched with the connecting part.

Preferably, the number of the driving assemblies is two, and the number of the guide grooves is two.

Preferably, the drive assembly comprises a magnetically attractive assembly;

the magnetic attraction component comprises induction coils which are arranged side by side along the transverse direction of the containing pipe and a magnetic part connected with the pushing part;

the magnetic part and the induction coil are arranged side by side along the axial direction, so that the coil generates electromagnetic induction with the induction coil under the condition of being electrified and moves along the direction of the induction coil and drives the pushing part to push out the cigarettes in the containing pipe.

Preferably, the pushing member further comprises a mounting portion connected with the pushing portion for mounting the magnetic member.

Preferably, an outer diameter of the mounting portion is smaller than an inner diameter of the induction coil.

Preferably, the driving assembly further comprises a power supply element connected with the induction coil to supply power to the induction coil;

the driving assembly further comprises a switch connected with the power supply element to start or close the power supply element.

Preferably, the device further comprises a shell, wherein the accommodating pipe is fixedly arranged in the shell;

and a positioning structure for limiting the pushing piece is arranged in the shell.

Preferably, the driving assembly includes a connecting rod connected with the pushing member, and a pushing button movably disposed in a longitudinal direction and connected with the connecting rod.

The utility model discloses still construct a pushing mechanism, including the impeller, the impeller include with be used for acceping the containing tube matched with promotion portion of cigarette, promote the position in the containing tube and can with a cigarette bottom butt, and for the containing tube is being close to the first position of the first end of containing tube with keep away from round trip movement between the second position of first end, with will the cigarette is followed release in the containing tube.

Preferably, the pushing portion is disc-shaped, and the radial dimension of the pushing portion is smaller than that of the accommodating tube.

Preferably, a through hole is formed on the pushing part.

Preferably, the pushing device further comprises a driving assembly, wherein the driving assembly is connected with the pushing member to drive the pushing member to move;

Preferably, the drive assembly comprises a magnetically attractive assembly;

Implement the utility model discloses an aerial fog produces device and pushing mechanism has following beneficial effect: this aerial fog generating device is through setting up pushing mechanism to push portion through this pushing mechanism impeller is in accommodating the pipe and with a cigarette bottom butt and for accommodating pipe round trip movement between the first position that is close to the first end and the second position of keeping away from the first end, and then release a cigarette from accommodating the pipe, need not the user and receives and extract a cigarette, and then can avoid a cigarette fracture, and the composition that reduces in the cigarette props up remains on heating element.

Drawings

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

fig. 1 is a schematic perspective view of an aerosol-generating device according to a first embodiment of the present invention;

figure 2 is a cross-sectional view of the aerosol-generating device of figure 1;

FIG. 3 is a schematic view of the internal configuration of the aerosol-generating device of FIG. 1 when heated;

figure 4 is a schematic view of the internal structure of the aerosol-generating device of figure 1 after heating is complete;

figure 5 is a schematic perspective view of a pusher member of the aerosol-generating device of figure 2;

fig. 6 is a cross-sectional view of an aerosol-generating device according to a first embodiment of the present invention.

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.

It should be understood that the terms "front", "back", "left", "right", "upper", "lower", "first", "second", etc. are used for convenience of describing the technical solution of the present invention, and do not indicate that the devices or elements referred to must have special differences, and thus, should not be construed as limiting the present invention. It will be understood that when an element is referred to as being "coupled" to another element, it can be directly coupled to the other element or intervening elements may also be present. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Fig. 1 and 2 show a first embodiment of an aerosol-generating device according to the present invention. This aerial fog generating device 1 accessible low temperature heating non-combustible mode heating tobacco cigarette 2 forms can supply the user to smoke, and it has the use convenient, not fragile advantage that props up a cigarette 2.

As shown in fig. 1 and 2, in the present embodiment, the gas mist generating apparatus 1 further includes a housing 10, a housing tube 20, a pushing mechanism 30, and a heat generating component 40. The housing 10 is used for accommodating the pushing mechanism 30 of the accommodating tube 20 and the heating element 40. The housing tube 20 is disposed in the housing 10, and can be used for fixing the cigarette 2. The pushing mechanism 30 is disposed in the housing 10, and can push out the cigarettes 2 in the containing tube 20. This heating element 40 sets up in the shell 10, and follows pushing mechanism 30 wears out the setting, in order to penetrate cigarette 2, carries out the heating atomization to cigarette 2.

Further, in the present embodiment, the housing 10 has a rectangular parallelepiped shape, and it is understood that in other embodiments, the housing 10 is not limited to having a rectangular parallelepiped shape, and may have a cylindrical shape. The housing 10 comprises a top wall 11, a bottom wall 12 and two first side walls 13 and two second side walls 14 arranged between the top wall 11 and the bottom wall 12. The top wall 11 and the bottom wall 12 are oppositely arranged, and the top wall 11 is provided with a socket 111; the insertion opening 111 allows the cigarette 2 to be inserted into the receiving tube 20. The two first side walls 13 are disposed opposite to each other, and the two second side walls 14 are disposed opposite to each other. The housing 10 is a hollow structure, and an accommodating cavity is formed inside the housing.

Further, in the present embodiment, the accommodating tube 20 is a circular tube shape, which includes a first end and a second end; the first end is used for inserting the cigarette 2, and the two ends of the first end and the second end are communicated. It is understood that in other embodiments, the receiving tube 20 is not limited to a circular tube shape. The accommodating tube 20 is axially disposed in the housing 10, and a first end thereof is disposed in the insertion opening 111, a central axis thereof coincides with a central axis of the housing 10, and a height thereof is smaller than a height of the housing 10. The inner diameter of the receiving tube 20 corresponds to the outer diameter of the cigarette 2, so that the cigarette 2 can be easily fixed. In the present embodiment, the accommodating tube 20 and the housing 10 are separate structures. The outer diameter of the receiving tube 20 is equal to the inner diameter of the socket 111, and the receiving tube 20 is detachably connected to the housing 10. In the present embodiment, a connection structure for connecting the accommodating tube 20 and the housing 10 is provided on the accommodating tube 20 and the housing 10. The connecting structure may be a clamping structure, and the accommodating tube 20 may be slidably clamped in the socket 111 through the clamping structure. Of course, it is understood that in other embodiments, the receiving tube 20 and the housing 10 are not limited to a separate structure. The receiving tube 20 and the housing 10 may be integrally formed. Specifically, it may be integrally formed with the housing 10 below the socket by injection molding or casting.

In this embodiment, the aerosol-generating device further comprises a guide mechanism for guiding the pushing mechanism 30. The guiding mechanism can be a guiding groove 21 which is arranged on the side wall of the accommodating tube 20 and used for guiding the pushing mechanism 30; the guide groove 21 is located at the lower part of the accommodating tube 20, extends along the axial direction of the accommodating tube 20, and may be in an inverted U shape, and may be two. It is understood that the guide grooves 21 may not be limited to two in other embodiments.

Further, in the present embodiment, the heat generating component 40 includes a heat generating sheet and a fixing base. The heating plate is a long sheet and can be disposed along the axial direction of the accommodating tube 20 so as to be inserted into the cigarette 2 along the axial direction of the accommodating tube 20. One end of the heating sheet can be a pointed structure so as to be conveniently inserted into the cigarette 2. The fixing seat can be disposed on a side of the pushing mechanism 30 opposite to the accommodating tube 20, and can fix the heating sheet.

As shown in fig. 2 to 5, further, in the present embodiment, the pushing mechanism 30 includes a pushing member 31 and a driving assembly 32. The pushing member 31 is movably disposed at the second end, and is connected to the driving assembly 32, and is driven by the driving assembly 32 to move along the axial direction of the accommodating tube 20, so as to push the cigarette 2 out of the accommodating tube 20. The driving assembly 32 is disposed in the housing 10 and drives the pushing member 31 to move. In this embodiment, the driving assemblies 32 can be provided in two sets, so that the pushing member 31 can move more smoothly. Of course, it is understood that in other embodiments, the drive assemblies 32 may be one or more sets.

Further, in the present embodiment, the pushing member 31 includes a pushing portion 311, a connecting portion 312, and a mounting portion 313. The pushing portion 311 is provided to be movable in the axial direction of the accommodating tube. The number of the connecting portions 312 may be two, and they may be respectively connected to the two sets of driving assemblies 32. Each of the connecting portions 312 has one end connected to the pushing portion 311 and the other end connected to a mounting portion 313, and the mounting portion 313 is used for connecting and mounting the driving unit 32. It will be appreciated that in other embodiments, the mounting portion 313 may be omitted.

Further, in this embodiment, during heating, the pushing portion 311 may be in contact with the bottom of the cigarette 2 in the accommodating tube, and move back and forth between a first position close to the first end and a second position far away from the first end relative to the accommodating tube, after heating is completed, the pushing portion 311 may be driven by the driving assembly 32 to move from the second position far away from the first end of the accommodating tube to the first position close to the first end along the axial direction of the accommodating tube 20, and further push the cigarette 2 out of the accommodating tube 20. In the present embodiment, the transverse dimension of the accommodating tube 20 is smaller than the radial dimension of the accommodating tube 20, and the cross-sectional shape of the pushing portion 311 is matched with the cross-sectional shape of the accommodating tube 20. Specifically, in the present embodiment, the pushing portion 311 has a disk shape, and the radial dimension thereof is smaller than the radial dimension of the accommodating tube 20. It is understood that, in other embodiments, the pushing portion 311 is not limited to be in a circular plate shape, and may be in a rectangular parallelepiped shape or a square shape, as long as it can penetrate into the accommodating tube 20. In this embodiment, the heat generating sheet is disposed on the pushing portion 311, and specifically, a through hole 3111 is disposed on the pushing portion 311 for the heat generating sheet to pass through. The via hole 3111 may be a bar-shaped hole.

Further, in this embodiment, the connecting portion 312 is disposed on two outer sidewalls of the pushing portion 311, so that the pushing portion 311 can operate in a balanced manner and move more stably. The connecting portion 312 can be engaged with the guiding groove 21, and can be disposed through the guiding groove 21. The connecting portion 312 is integrally formed with the pushing portion 311, and in particular, in the present embodiment, it may be integrally formed with the pushing portion 311 by injection molding or die casting. The connecting portion 312 may have a bar shape. It is understood that in other embodiments, the connecting portion 312 is not limited to being strip-shaped.

Further, in this embodiment, there are two mounting portions 313, which are disposed corresponding to the two sets of driving assemblies 32 one by one, and the mounting portions 313 are cylindrical and have a hollow structure inside. It can extend along the axial direction of the accommodating tube 20, and it is located at both sides of the accommodating tube 20, and it can drive the connecting portion 312 to move along the axial direction under the driving of the driving component 32, and further drive the pushing portion 311 to move along the axial direction. The connecting portion 312 is connected to an outer sidewall of the mounting portion 313. The mounting portion 313 is integrally formed with the connecting portion 312 and the pushing portion 311, and specifically, in the present embodiment, the mounting portion 313 is integrally formed with the connecting portion 312 and the pushing portion 311 by injection molding or die casting.

Further, in this embodiment, the aerosol-generating device may further comprise a positioning structure. The positioning structure can be disposed in the housing 10, and is connected to the pushing member 31, so that the pushing member 31 can be limited to be kept at a fixed position before or after the driving of the driving assembly is stopped, and the heating sheet can be conveniently inserted into the cigarette 2. Alternatively, the positioning structure may include an elastic positioning bump disposed on the pushing member 31, and a positioning groove disposed on the inner side wall of the housing 10 and corresponding to the elastic positioning bump. The elastic positioning bumps may be disposed on a side of the mounting portion 313 opposite to the accommodating tube 20. It will be appreciated that in other embodiments, the positioning structure is not limited to resilient positioning bumps and detents.

Further, in this embodiment, the driving component 32 may be a magnetic component, and the magnetic component can generate electromagnetic induction in the power-on state, so as to drive the pushing component 31 to move along the axial direction. The magnetic attraction component comprises an induction coil 321 and a magnetic element 322; the induction coil 321 is provided in the housing 10, is located above the housing 10, is arranged in parallel with the housing tube 20 in the lateral direction, and can generate an electromagnetic field in an energized state. The magnetic element 322 is mounted on the mounting portion 313, when the induction coil 321 is energized to generate a magnetic field, the magnetic element 322 can be attracted by the induction coil 321 to move upward, and further drive the pushing member 31 to move upward, so that the pushing portion 311 pushes out the cigarettes 2 in the accommodating tube 20. The magnetic member 322 may have a cylindrical shape, and the outer diameter thereof corresponds to the inner diameter of the mounting portion 313. Alternatively, the magnetic member 322 may be a magnet post.

Further, in the present embodiment, the driving assembly 32 further includes a power supply element; the power supply element is connected to the induction coil 321, and can supply power to the induction coil 321. The power supply element may be disposed in the housing 10, or it may be located outside the housing 10. Alternatively, the power supply element may be a battery assembly.

Further, in this embodiment, the driving assembly 32 further includes a switch, which may be a key switch, and the switch may be disposed on an outer sidewall of the housing 10, and is connected to the power supply element, and is capable of turning on or off the power supply element, so as to turn off or power on the induction coil 321. It is understood that in other embodiments, the switch may be omitted, and in other embodiments, the induction coil 321 is automatically powered on after the heating is started and the heating is completed, so as to start the smoke pushing.

In other embodiments, the aerosol-generating device further comprises a power supply device 50 and a main control board 60; the power device 50 and the main control board 60 are disposed in the housing 10 and connected to each other, and are electrically connected to the heating element 40 respectively, the power device 50 can supply power to the heating element 40, and the main control board 60 can control the heating element 40 to be turned on or turned off. Alternatively, the power supply device 50 may be a battery assembly. In this embodiment, the induction coil 321 and the heat generating component 40 can share one power device 50.

As shown in fig. 3 and 4, when the cigarette 2 is inserted into the housing tube 20, the heat generating sheet is inserted into the cigarette 2 from the through hole 3111 of the pushing portion 311 to heat the cigarette 2. After smoking, the user can operate the key switch to energize the induction coil 321, so as to attract the magnetic member 322 to move upward along the axial direction, and further drive the pushing member 31 to move upward along the axial direction, and the pushing portion 311 penetrates into the accommodating tube 20 and moves upward to push out the cigarettes 2 in the accommodating tube 20. It is understood that in other embodiments, the key switch may be omitted, a heating control program may be provided on the main control board 60, and the phase power supply element is automatically controlled to supply current to the induction coil 321 at the end time of heating, and the current may also be supplied for a plurality of times at intervals, so as to achieve the effect of removing smoke for a plurality of times.

Fig. 6 shows a second embodiment of the present invention, which differs from the first embodiment in that the housing 10 may include an upper case 11a and a lower case 11 b. The upper case 11a and the lower case 11b are detachably coupled. The accommodating tube 20 is disposed in the upper housing 11a and is integrally formed with the upper housing 11a, and the power supply device 50 and the main control board 60 are disposed in the lower housing 11.

The drive assembly 32 is not limited to a magnetically attractive assembly and may be omitted. The drive assembly 32 may be a manual drive assembly. The driving assembly 32 includes a connecting rod 323 and a push button 324. The connecting rod 323 can be connected to the pushing member 31, specifically, it is connected to the connecting portion 312 and is disposed through the housing 10, and the push button 324 is disposed on the outer sidewall of the housing 10, is connected to the connecting rod 323 and can move along the longitudinal direction. When the cigarette is removed, the user can push the push button 324 to drive the pushing member 31 to move, so that the cigarette is removed. In this embodiment, the push button 324 and the connecting rod 323 may be integrally formed with the connecting portion 312. It is understood that in other embodiments, the push button 324, the connecting rod 323 and the connecting portion 312 may be formed as a separate body. In some embodiments, the connection portion 312 may be omitted, and the connection rod 323 may be directly connected with the pushing portion 311.

It is to be understood that the foregoing examples merely represent preferred embodiments of the present invention, and that the description thereof is more specific and detailed, but not intended to limit 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. The aerosol generating device is characterized by comprising a containing pipe (20) which is fixedly arranged and used for containing cigarettes (2), wherein the containing pipe (20) comprises a first end for inserting the cigarettes (2); aerial fog generating device still include with accommodate pipe (20) cooperate with follow cigarette (2) push mechanism (30) that withdraws from in accommodating pipe (20), push mechanism (30) include impeller (31), impeller (31) include with accommodate pipe (20) matched with promotion portion (311), promotion portion (311) are located in accommodating pipe (20) and can with cigarette (2) bottom butt, and for accommodate pipe (20) are being close to first position of first end and keeping away from round trip movement between the second position of first end.

2. Aerosol-generating device according to claim 1, characterized in that the containment tube (20) is tubular;

the pushing portion (311) is in a disc shape, and the radial dimension of the pushing portion (311) is smaller than that of the accommodating pipe (20).

3. An aerosol-generating device according to claim 1, further comprising a heat generating component (40) arranged to be insertable into the rod (2);

the pushing portion (311) is provided with a through hole for the heating component to penetrate through.

4. Aerosol-generating device according to claim 3, characterized in that the heating assembly (40) comprises a heating plate axially arranged along the housing tube (20) for axial insertion into the cigarette (2);

the heating sheet is arranged on the through hole (3111) in a penetrating mode.

5. Aerosol-generating device according to claim 1, characterized in that the pushing mechanism (30) comprises a drive assembly (32) connected to the pusher (31);

the pushing member (31) further includes a connecting portion (312) connecting the pushing portion (311) and the driving assembly (32).

6. An aerosol-generating device according to claim 5, further comprising a guide mechanism for guiding the pusher (31).

7. An aerosol-generating device according to claim 6, wherein the guide means comprise a guide groove (21) which opens on a side wall of the receiving tube (20) and engages with the connecting portion (312).

8. An aerosol-generating device according to claim 7 in which the drive assemblies (32) are in two sets and the guide slots (21) are in two sets.

9. An aerosol-generating device according to claim 6, wherein the drive assembly (32) comprises a magnetically attractive assembly;

the magnetic attraction component comprises an induction coil (321) which is arranged side by side with the containing pipe (20) along the transverse direction and a magnetic part (322) which is connected with the pushing part (31);

the magnetic piece (322) and the induction coil (321) are arranged side by side along the axial direction, so that the coil is electrified to generate electromagnetic induction with the induction coil (321) to move along the direction of the induction coil (321) and drive the pushing piece (31) to push out the cigarette (2) in the accommodating pipe (20).

10. An aerosol-generating device according to claim 9 in which the pusher (31) further comprises a mounting (313) connected to the pusher (311) for mounting the magnetic member (322).

11. An aerosol-generating device according to claim 10, wherein the mounting portion (313) has an outer diameter that is smaller than an inner diameter of the induction coil (321).

12. Aerosol-generating device according to claim 10, characterized in that the drive assembly (32) further comprises a power supply element connected to the induction coil (321) for supplying power to the induction coil (321);

the drive assembly (32) further includes a switch connected to the power supply element to activate or deactivate the power supply element.

13. Aerosol-generating device according to claim 1, further comprising a housing (10), the containment tube (20) being fixedly arranged in the housing (10);

and a positioning structure for limiting the pushing piece (31) is arranged in the shell (10).

14. Aerosol-generating device according to claim 5, characterized in that the drive assembly (32) comprises a connecting rod (323) connected to the pusher (31) and a push button (324) arranged longitudinally movable and connected to the connecting rod (323).

15. The utility model provides a pushing mechanism, its characterized in that includes pushing member (31), pushing member (31) include with be used for acceping the containing pipe (20) matched with promotion portion of cigarette (2), the promotion position in containing pipe (20) and can with cigarette (2) bottom butt, and relative with containing pipe (20) is being close to the first position of the first end of containing pipe (20) and keeping away from round trip movement between the second position of first end, with cigarette (2) are followed push out in containing pipe (20).

16. The pushing mechanism according to claim 15, characterized in that said pushing portion (311) is disc-shaped and the radial dimension of said pushing portion (311) is smaller than the radial dimension of said containment tube (20).

17. The pushing mechanism of claim 15, wherein a via hole is provided on the pushing portion (311).

18. The pushing mechanism of claim 15, further comprising a drive assembly (32), the drive assembly (32) being coupled to the pusher member (31) to drive the pusher member (31) to move;

19. The pushing mechanism of claim 18, wherein the drive assembly (32) comprises a magnetically attractive assembly;

20. The pushing mechanism of claim 19, wherein the pushing member (31) further comprises a mounting portion (313) connected to the pushing portion (311) for mounting the magnetic member (322).