Aerosol generating device

Abstract

The invention discloses an aerial fog generating device which can ensure that a plunger cannot move normally due to adjustment of an adjusting rod. The aerial fog generating device comprises a base body, a liquid pushing assembly, a penetrating part, an output assembly and an adjusting rod, the output assembly is installed in an assembling cavity, the penetrating part is installed in an installing cavity and provided with a liquid storage channel, and the liquid pushing assembly is installed in a sliding cavity in a left-right sliding mode and comprises a plunger arranged in the liquid storage channel in a penetrating mode. The liquid pushing assembly slides leftwards in the sliding cavity to drive the plunger to penetrate into the liquid storage channel, liquid in the liquid storage channel is pushed to the output assembly, the liquid pushing assembly slides rightwards in the sliding cavity to drive the plunger to penetrate out of the liquid storage channel, so that liquid in the liquid inlet channel is sucked into the liquid storage channel, and the adjusting rod is arranged in the sliding cavity in a penetrating mode with the penetrating amount adjustable. The adjusting rod comprises a limiting part arranged in the sliding cavity, the liquid pushing assembly is further arranged on the limiting part in a sliding mode, and the limiting part comprises a blocking structure limiting the liquid pushing assembly to keep the same sliding distance all the time.

Description

Technical Field

[0001] The present invention relates to the field of aerosol generation, and in particular to an aerosol generating device. Background Art

[0002] Trace oil mist lubrication generally mixes compressed air (such as air) with a very small amount of lubricating oil to vaporize to form a micron-sized droplet oil mist, which is sprayed at high speed to the cutting area or kinematic pair through a nozzle, thereby effectively cooling and lubricating the cutting area or kinematic pair. The core component is the pump body. The reciprocating motion of the plunger in the pump body completes the action of sucking and pressing oil. The squeezed lubricating oil and compressed gas are mixed to form oil mist. The existing plunger pump is equipped with an adjusting rod for adjusting the oil pumping amount. The stroke of the piston is adjusted by screwing the adjusting rod in and out, thereby controlling the stroke of the plunger and then the oil pumping amount. When the adjusting rod is screwed in to the extreme position, the stroke of the piston is very small, the piston cannot / will not move normally, and the plunger cannot push out the grease, resulting in equipment failure.

[0003] Therefore, there is an urgent need for an aerosol generating device that ensures that the plunger will not be unable to move normally due to the adjustment of the adjustment rod to overcome the above-mentioned defects. Summary of the invention

[0004] The object of the present invention is to provide an aerosol generating device which ensures that the plunger will not fail to move normally due to the adjustment of the adjustment rod.

[0005] To achieve the above-mentioned purpose, the aerosol generating device provided by the present invention includes a seat body, a liquid pushing assembly, a penetration member, an output assembly and an adjusting rod. The seat body is provided with a group connection chamber, a mounting chamber and a sliding chamber from left to right in sequence. The seat body is also provided with a liquid inlet channel and a first air inlet, the first air inlet is connected to the group connection chamber, the output assembly is installed in the group connection chamber, the penetration member is installed in the mounting chamber, the penetration member is provided with a liquid storage channel, the liquid storage channel is connected to the liquid inlet channel, the liquid pushing assembly is installed in the sliding chamber so as to be slidable left and right, the liquid pushing assembly includes a plunger penetrated in the liquid storage channel, and the liquid pushing assembly slides leftward in the sliding chamber. The plunger is driven to penetrate into the liquid storage channel, and the liquid in the liquid storage channel is pushed toward the output component. The compressed air input from the first air inlet flows into the output component. The liquid pushing component slides to the right in the sliding chamber and drives the plunger to penetrate out of the liquid storage channel, so that the liquid storage channel generates a negative pressure and the liquid in the liquid inlet channel is sucked into the liquid storage channel. The adjusting rod is inserted into the sliding chamber with an adjustable penetration amount. The adjusting rod is used to adjust the penetration amount of the plunger in the liquid storage channel. The adjusting rod includes a limiting portion arranged in the sliding chamber. The liquid pushing component is also slidably arranged on the limiting portion. The limiting portion includes a blocking structure that limits the liquid pushing component to always maintain the same sliding distance.

[0006] Preferably, the fluid pushing assembly also includes a piston installed in the sliding cavity so as to be slidable left and right, the limiting portion is penetrated in the piston, the piston slides left and right along the limiting portion, and the right end of the plunger is installed in the piston in a ball head connection manner.

[0007] Preferably, the blocking structure includes a first blocking end formed at the left end of the limiting portion and a second blocking end formed at the right end of the limiting portion, the first blocking end penetrates into the piston, and the second blocking end is arranged outside the piston, the first blocking end and the second blocking end are separated in the left and right directions, and the sliding distance of the liquid pushing assembly is the distance between the first blocking end and the second blocking end.

[0008] Preferably, the diameter of the limiting portion is smaller than both the diameter of the first blocking end and the diameter of the second blocking end.

[0009] Preferably, the penetration member is provided with a liquid inlet, the liquid storage channel is connected with the liquid inlet channel through the liquid inlet, and the plunger passes over the liquid inlet to push the liquid in the liquid inlet channel toward the output assembly.

[0010] Preferably, the aerosol generating device of the present invention further comprises an indicator rod, which passes through the adjusting rod, the left end of which is mounted on the piston, and the right end of which is disposed outside the seat body, and the indicator rod synchronously follows the piston to slide back and forth left and right.

[0011] Preferably, a connecting chamber is provided in the piston, the left end of the indicator rod is provided in the connecting chamber, the liquid pushing assembly also includes a connecting cover, the connecting cover is connected to the left end of the indicator rod, the left end of the indicator rod is formed with a contact body provided in the connecting cover, the right end of the plunger penetrates into the connecting cover and is connected with the contact body by spherical contact.

[0012] Preferably, the end surface of the right end of the plunger is a curved structure, the end surface of the contact body is a flat structure, the curved structure abuts against the flat structure, and the right end of the plunger is locked in the connection cover by a retaining spring.

[0013] Preferably, a step surface structure is formed at the right end of the connecting cavity, the right end of the contact body extends outward along the circumferential direction to form a positioning platform, the positioning platform is connected to the step surface structure, the right end of the connecting cover is connected to the positioning platform, and the left end of the connecting cover is locked to the connecting cavity by a retaining spring.

[0014] Preferably, the seat body is also provided with a second air inlet, the piston divides the sliding chamber into a left sliding chamber and a right sliding chamber, the left sliding chamber is installed with a first spring, the first spring abuts against the piston, the first spring always has a tendency to push the piston to slide to the right, and the seat body is provided with a second air inlet connected to the right sliding chamber.

[0015] Compared with the prior art, in the present invention, no matter how the adjusting rod is adjusted to achieve the adjustment of the oil pumping amount, the moving stroke of the liquid pushing component each time is unchanged, that is, the present application "extends" the adjusting rod so that the liquid pushing component is slidably arranged on the limit portion, and a blocking structure is provided on the limit portion to limit the liquid pushing component to always maintain the same sliding distance. The movement stroke of the liquid pushing component remains unchanged and will not be unable to move normally due to the adjustment of the oil pumping amount. The plunger can push out the oil normally, and the liquid storage channel can also fill with oil normally, ensuring that the plunger will not be unable to move normally due to the adjustment of the adjusting rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a perspective view of the aerosol generating device of the present invention.

[0017] Figure 2 It is a top view of the aerosol generating device of the present invention.

[0018] Figure 3 The aerosol generating device of the present invention is Figure 2 The cross-sectional view obtained after cutting along the line segment AA in the middle, at this time, compressed air is injected into the sliding right chamber through the second air inlet, and the compressed air pushes the piston to slide to the left, causing the plunger to penetrate into the liquid storage channel to the left.

[0019] Figure 4 yes Figure 3 The aerosol generating device shown continues to inject compressed air into the sliding right chamber through the second air inlet, and the compressed air pushes the piston to slide leftward, so that the piston is blocked by the first blocking end and stops, and the plunger penetrates the liquid storage channel and reaches the leftmost limit position.

[0020] Figure 5 yes Figure 4 The aerosol generating device shown stops injecting compressed air into the sliding right chamber, and the piston slides to the right under the push of the first spring, so that the piston is blocked by the second blocking end and stops, the plunger passes through the liquid storage channel and reaches the rightmost limit position, and the oil in the liquid inlet channel flows into the liquid storage channel under the action of negative pressure.

[0021] Figure 6 yes Figure 3 After the regulating rod of the aerosol generating device shown is properly rotated out, compressed air is injected into the right sliding chamber through the second air inlet, and the compressed air pushes the piston to slide leftward, so that the piston is blocked by the first blocking end and stops, and the plunger penetrates the liquid storage channel and reaches the leftmost limit position.

[0022] Figure 7 It is a three-dimensional diagram of the aerosol generating device of the present invention after the seat body, the penetration piece, the output assembly and the limit head are hidden.

[0023] Figure 8 Is further hidden Figure 7A perspective view of a piston of the structure shown.

[0024] Fig. 9 yes Figure 8 A cross-sectional view of the structure shown.

[0025] Fig.10 It is a top view of the seat body of the present invention.

[0026] Fig.11 The seat body of the present invention is Fig.10 The cross-sectional view obtained after cutting along the BB line segment. DETAILED DESCRIPTION

[0027] In order to explain the technical content and structural features of the present invention in detail, further description will be given below in combination with the implementation modes and the accompanying drawings.

[0028] The present invention discloses an aerosol generating device 100, which is used to eject a very small amount of liquid and output compressed air. The output compressed air and liquid are mixed and vaporized at the nozzle to form an aerosol containing micron-sized droplets. The present invention is described using the solution as lubricating oil, but it is understandable that the solution is not limited to lubricating oil, and can be water, alcohol or various chemical solvents. When the compressed air and lubricating oil are mixed and vaporized to form micron-sized droplet oil mist, it is sprayed at high speed to the cutting area or kinematic pair through the nozzle for cooling and lubrication.

[0029] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Fig.10 and Fig.11As shown, the aerosol generating device 100 of the present invention includes a seat body 10, a liquid pushing assembly 20, a penetration member 30, an output assembly 40 and an adjusting rod 50. The seat body 10 is provided with a group connection chamber 11, a mounting chamber 12, and a sliding chamber 13 from left to right, and the seat body 10 is also provided with a liquid inlet channel 14 and a first air inlet 15. The first air inlet 15 is connected to the group connection chamber 11. The output assembly 40 is installed in the group connection chamber 11, the penetration member 30 is installed in the mounting chamber 12, and the penetration member 30 is provided with a liquid storage channel 31, and the liquid storage channel 31 is connected to the liquid inlet channel 14. The liquid pushing assembly 20 is installed in the sliding chamber 13 so as to be slidable left and right, and the liquid pushing assembly 20 includes a plunger 21 penetrated in the liquid storage channel 31. The liquid pushing component 20 slides to the left in the sliding cavity 13 and drives the plunger 21 to penetrate the liquid storage channel 31, pushing the liquid in the liquid storage channel 31 to the output component 40, realizing the liquid pumping action, and the compressed air input from the first air inlet 15 flows into the output component 40, and the liquid flowing into the output component 40 and the compressed air flowing into the output component 40 are finally mixed at the tail end of the output component 40 to form aerosol containing micron-level droplets. The liquid pushing component 20 slides to the right in the sliding cavity 13 and drives the plunger 21 to penetrate the liquid storage channel 31, so that the liquid storage channel 31 generates negative pressure and sucks the liquid in the liquid inlet channel 14 into the liquid storage channel 31. The adjusting rod 50 is inserted into the sliding cavity 13 with an adjustable penetration amount. The adjusting rod 50 is used to adjust the penetration amount of the plunger 21 in the liquid storage channel 31, thereby adjusting the amount of liquid pumping. When the penetration amount of the plunger 21 is larger, the amount of liquid pumping is higher, and when the penetration amount of the plunger 21 is smaller, the amount of liquid pumping is smaller. The penetration amount of the plunger 21 refers to the extent to which the plunger 21 penetrates the penetration member 30. The adjustment rod 50 includes a limiter 51 disposed in the sliding cavity 13, and the liquid pushing component 20 is also slidably disposed on the limiter 51. The limiter 51 includes a blocking structure that limits the liquid pushing component 20 to always maintain the same sliding distance.

[0030] In the present invention, no matter how the adjusting rod 50 is adjusted to achieve the adjustment of the oil pumping amount, the moving stroke of the liquid pushing component 20 for each action is unchanged, that is, the present application "extends" the adjusting rod 50 so that the liquid pushing component 20 is slidably arranged on the limiting portion 51, and a blocking structure is provided on the limiting portion 51 to limit the liquid pushing component 20 to always maintain the same sliding distance. The movement stroke of the liquid pushing component 20 remains unchanged and will not be unable to move normally due to the adjustment of the oil pumping amount. The plunger 21 can push out the oil normally, and the liquid storage channel 31 can also take in oil normally, ensuring that the plunger 21 will not be unable to move normally due to the adjustment of the adjusting rod 50.

[0031] like Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7As shown, the fluid pushing assembly 20 also includes a piston 22 that is installed in the sliding chamber 13 so as to be slidable left and right. The limiting portion 51 is penetrated in the piston 22. The piston 22 slides left and right along the limiting portion 51. The right end of the plunger 21 is installed in the piston 22 in a ball head connection manner. The limiting portion 51 can provide a guide for the sliding of the piston 22, making the movement of the piston 22 more stable. The right end of the plunger 21 is installed in the piston 22 in a ball head connection manner. The plunger 21 can be adjusted in multiple directions during movement, and is not prone to getting stuck.

[0032] like Figures 3 to 9 As shown, the blocking structure includes a first blocking end 52 formed at the left end of the limiting portion 51 and a second blocking end 53 formed at the right end of the limiting portion 51. The first blocking end 52 penetrates into the piston 22, and the second blocking end 53 is arranged outside the piston 22. The first blocking end 52 and the second blocking end 53 are separated in the left-right direction. The sliding distance of the liquid pushing component 20 is the distance between the first blocking end 52 and the second blocking end 53, that is, Fig. 9 The middle distance L1 (actually smaller than the distance L1, because it is necessary to consider setting a matching blocking structure on the piston 22, but for the convenience of representation, the distance L1 is used as the sliding stroke of the piston 22).

[0033] When the piston 22 is stopped by the first blocking end 52, the plunger 21 penetrates the liquid storage channel 31 and reaches the leftmost limit position. When the piston 22 is stopped by the second blocking end 53, the plunger 21 penetrates the liquid storage channel 31 and reaches the rightmost limit position. The first blocking end 52 and the second blocking end 53 limit the piston 22 to slide only within the interval defined by the first blocking end 52 and the second blocking end 53, and must slide according to the interval. The movement distance of the piston 22 each time is constant.

[0034] Preferably, the diameter of the limiting portion 51 is smaller than both the diameter of the first blocking end 52 and the diameter of the second blocking end 53. A sealing ring is installed at the first blocking end 52, and the piston 22 is slidably arranged at the first blocking end 52. The sealing ring can prevent air leakage.

[0035] like Figures 3 to 6 As shown, the penetration member 30 is provided with a liquid inlet 32 ​​, the liquid storage channel 31 is connected with the liquid inlet channel 14 through the liquid inlet 32 ​​, and the plunger 21 passes over the liquid inlet 32 ​​to push the liquid in the liquid inlet channel 14 toward the output assembly 40 .

[0036] It is understood that if the penetration amount of the plunger 21 is greater, that is, the more the plunger 21 penetrates into the liquid storage channel 31, the more oil it can push out, and vice versa. Figure 4 The penetration of the middle plunger 21 is greater than Figure 6 The penetration amount of the middle plunger 21 is Figure 4 The middle plunger 21 can push out more oil.

[0037] It should be noted that when the plunger 21 has not passed the liquid inlet 32, the oil in the liquid storage channel 31 will not be pushed out due to insufficient pressure difference. Only when the plunger 21 passes the liquid inlet 32, that is, the plunger 21 is in a state such as Figure 3 The oil in the liquid storage channel 31 can be pushed out only in the state shown, because the oil in the liquid storage channel 31 cannot flow back to the liquid inlet channel 14, and can only be output in one direction, that is, the oil in the liquid storage channel 31 is pushed out.

[0038] like Figures 3 to 9 As shown, the aerosol generating device 100 of the present invention further includes an indicator rod 60. The indicator rod 60 passes through the adjusting rod 50, the left end of the indicator rod 60 is mounted on the piston 22, the right end of the indicator rod 60 is arranged outside the seat body 10, and the indicator rod 60 synchronously follows the piston 22 to slide back and forth left and right. The indicator rod 60 synchronously follows the piston 22 to slide back and forth left and right, so that the right end of the indicator rod 60 continuously penetrates into and out of the seat body 10. By observing whether the right end of the indicator rod 60 continuously penetrates into and out of the seat body 10, it can be judged whether the operation of the aerosol generating device 100 is normal.

[0039] like Figures 3 to 9 As shown, a connecting cavity 221 is provided in the piston 22, and the left end of the indicator rod 60 is provided in the connecting cavity 221. The liquid pushing assembly 20 also includes a connecting cover 23, and the connecting cover 23 is connected to the left end of the indicator rod 60. The left end of the indicator rod 60 is formed with a contact body 61 provided in the connecting cover 23. The right end of the plunger 21 penetrates into the connecting cover 23 and is connected with the contact body 61 by spherical contact. The piston 22, the plunger 21 and the contact body 61 are connected together by the connecting cover 23 to enhance the overall stability of the structure and ensure that the three can move synchronously. The right end of the plunger 21 is connected with the contact body 61 by spherical contact, so that the right end of the plunger 21 can be installed in the piston 22 in a ball head connection manner, so that the plunger 21 can be adjusted in multiple directions when moving.

[0040] Furthermore, the end surface of the right end of the plunger 21 is a curved surface structure, the end surface of the contact body 61 is a flat surface structure, the curved surface structure abuts against the flat surface structure, and the right end of the plunger 21 is locked in the connection cover 23 by a retaining spring. The curved surface structure can be multi-directionally rotated on the flat surface structure, thereby realizing multi-directional rotation adjustment of the plunger 21.

[0041] like Figures 3 to 6As shown, a step surface structure 222 is formed at the right end of the connecting cavity 221, and the right end of the contact body 61 extends outward along the circumferential direction to form a positioning platform 62. The positioning platform 62 is connected to the step surface structure 222, and the right end of the connecting cover 23 is connected to the positioning platform 62. The left end of the connecting cover 23 is locked to the connecting cavity 221 by a retaining spring, and the retaining spring locks the connecting cover 23 in the connecting cavity 221. The step surface structure 222 can provide positioning for the positioning platform 62, so that the plunger 21, the piston 22 and the indicator rod 60 are reliably and stably connected together.

[0042] like Figures 3 to 6 As shown, the seat body 10 is also provided with a second air inlet 16, and the piston 22 divides the sliding chamber 13 into a sliding left chamber and a sliding right chamber. The sliding right chamber is installed with a first spring 24, which abuts against the piston 22. The first spring 24 always has a tendency to push the piston 22 to slide to the right. The seat body 10 is provided with a second air inlet 16 connected to the sliding right chamber. Compressed air is injected into the sliding right chamber through the second air inlet 16, and the compressed air pushes the piston 22 to slide to the left, so that the plunger 21 penetrates the liquid storage channel 31 and pushes the oil to the output assembly 40. At this time, the first spring 24 is compressed. After the compressed air injection into the sliding right chamber stops, the first spring 24 is reset and pushes the piston 22 to slide to the right, so that the plunger 21 penetrates the liquid storage channel 31.

[0043] like Figures 3 to 6 As shown, the output assembly 40 can adopt the existing structure, and a one-way valve 41 is provided in the output assembly 40 to prevent liquid backflow.

[0044] A second spring 70 is also installed in the right sliding chamber. The second spring 70 abuts against the adjusting rod 50. The second spring 70 always has a tendency to push the adjusting rod 50 to move to the left. The second spring 70 improves the feel of operating the adjusting rod 50. A limit head 80 is installed at the right end of the adjusting rod 50. The right end of the indicator rod 60 is also inserted into the limit head 80. The limit head 80 is provided with an observation port, through which the movement of the indicator rod 60 can be observed.

[0045] The adjustment rod 50 is operated to penetrate the sliding cavity 13. When the limit head 80 is aligned with the seat body 10, the adjustment rod 50 reaches the limit position and cannot penetrate into the sliding cavity 13 any further. Figure 3 , Figure 4 and Figure 5 As shown, this is to enable the plunger 21 to achieve the maximum penetration adjustment. When the adjustment rod 50 is properly screwed out, as shown in FIG. Figure 6 As shown, even if the plunger 21 penetrates into the liquid storage channel 31 and reaches the leftmost limit position, the penetration amount of the plunger 21 is less than Figure 3 , Figure 4 and Figure 5The penetration amount of the plunger 21 shown, and therefore the amount of oil that can be pushed out, is relatively small. Therefore, by screwing the adjustment rod 50 in and out, the amount of oil pushed out by the plunger 21 can be adjusted, thereby achieving the adjustment of the oil pumping amount.

[0046] The following is a brief introduction to the working process of the aerosol generating device 100 of the present invention: the compressed gas flows into the assembly chamber 11 through the first air inlet 15 and then flows into the output assembly 40. The compressed gas is input into the sliding right chamber through the second air inlet 16. The compressed gas pushes the piston 22 to slide to the left, driving the plunger 21 to penetrate into the liquid storage channel 31. After the plunger 21 passes over the liquid inlet 32, it pushes the oil in the liquid storage channel 31 to the output assembly 40. The oil and compressed air output from the output assembly 40 are finally mixed at the nozzle to form micron-level droplet oil mist. After stopping the injection of compressed air into the sliding right chamber, the first spring 24 pushes the piston 22 to slide to the right, driving the plunger 21 to penetrate out of the liquid storage channel 31. The liquid storage channel 31 forms a negative pressure, and the oil in the liquid inlet channel 14 is sucked into the liquid storage channel 31. During the above-mentioned action process, the indicator rod 60 continuously slides back and forth in the left and right directions in the sliding cavity 13, and the right end of the indicator rod 60 continuously penetrates into and out of the seat body 10, indicating that the device operates smoothly.

[0047] The above disclosure is only a preferred embodiment of the present invention, which cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are all within the scope of the present invention.

Claims

1. An aerosol generating device, characterized in that: The invention comprises a seat body, a liquid pushing assembly, a penetration member, an output assembly and an adjusting rod, wherein the seat body is provided with a group connection chamber, a mounting chamber and a sliding chamber in sequence from left to right, the seat body is also provided with a liquid inlet channel and a first air inlet, the first air inlet is communicated with the group connection chamber, the output assembly is installed in the group connection chamber, the penetration member is installed in the mounting chamber, the penetration member is provided with a liquid storage channel, the liquid storage channel is communicated with the liquid inlet channel, the liquid pushing assembly is installed in the sliding chamber so as to be slidable left and right, the liquid pushing assembly comprises a plunger which is penetrated by the liquid storage channel, the liquid pushing assembly slides leftward in the sliding chamber to drive the plunger to penetrate the liquid storage channel, and the liquid The liquid in the liquid storage channel is pushed toward the output component, and the compressed air input from the first air inlet flows into the output component. The liquid pushing component slides to the right in the sliding chamber and drives the plunger to pass through the liquid storage channel, so that the liquid storage channel generates a negative pressure and the liquid in the liquid inlet channel is sucked into the liquid storage channel. The adjusting rod is inserted into the sliding chamber with an adjustable penetration amount. The adjusting rod is used to adjust the penetration amount of the plunger into the liquid storage channel. The adjusting rod includes a limiting portion provided in the sliding chamber. The liquid pushing component is also slidably provided on the limiting portion. The limiting portion includes a blocking structure that limits the liquid pushing component to always maintain the same sliding distance.

2. The aerosol generating device according to claim 1, characterized in that: The fluid pushing assembly also includes a piston installed in the sliding cavity so as to be slidable left and right. The limiting portion is penetrated in the piston. The piston slides left and right along the limiting portion. The right end of the plunger is installed in the piston in a ball head connection manner.

3. The aerosol generating device according to claim 2, characterized in that: The blocking structure includes a first blocking end formed at the left end of the limiting portion and a second blocking end formed at the right end of the limiting portion, the first blocking end penetrates into the piston, the second blocking end is arranged outside the piston, the first blocking end and the second blocking end are separated in the left and right directions, and the sliding distance of the fluid pushing assembly is the distance between the first blocking end and the second blocking end.

4. The aerosol generating device according to claim 3, characterized in that: The diameter of the limiting portion is smaller than the diameter of the first blocking end and the diameter of the second blocking end.

5. The aerosol generating device according to claim 1, characterized in that: The penetration member is provided with a liquid inlet, the liquid storage channel is communicated with the liquid inlet channel through the liquid inlet, and the plunger passes over the liquid inlet to push the liquid in the liquid inlet channel toward the output assembly.

6. The aerosol generating device according to claim 2, characterized in that: It also includes an indicator rod, which passes through the adjusting rod, the left end of which is installed on the piston, and the right end of which is arranged outside the seat body, and the indicator rod synchronously follows the piston to slide back and forth left and right.

7. The aerosol generating device according to claim 6, characterized in that: A connecting cavity is provided in the piston, and the left end of the indicator rod is provided in the connecting cavity. The liquid pushing assembly also includes a connecting cover, which is connected to the left end of the indicator rod. The left end of the indicator rod is formed with a contact body provided in the connecting cover, and the right end of the plunger penetrates into the connecting cover and is connected with the contact body by spherical contact.

8. The aerosol generating device according to claim 7, characterized in that: The end surface of the right end of the plunger is a curved structure, the end surface of the contact body is a flat structure, the curved structure abuts against the flat structure, and the right end of the plunger is locked in the connection cover by a retaining spring.

9. The aerosol generating device according to claim 7, characterized in that: A step surface structure is formed at the right end of the connecting cavity, and the right end of the contact body extends outward along the circumferential direction to form a positioning platform, and the positioning platform is connected to the step surface structure. The right end of the connecting cover is connected to the positioning platform, and the left end of the connecting cover is locked to the connecting cavity by a retaining spring.

10. The aerosol generating device according to claim 2, characterized in that: The seat body is also provided with a second air inlet, and the piston divides the sliding chamber into a left sliding chamber and a right sliding chamber. The left sliding chamber is installed with a first spring, which abuts against the piston. The first spring always has a tendency to push the piston to slide to the right, and the seat body is provided with a second air inlet connected to the right sliding chamber.

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