Pressing liquid pumping structure and aerosol generating device

Abstract

The embodiment of the utility model discloses a pressing liquid pumping structure and an aerosol generating device. The pressing liquid pumping structure comprises a liquid storage bottle and a liquid pumping assembly, the liquid pumping assembly comprises a pump body, a piston, a pressing piece and an elastic reset piece, the pump body is provided with a pump body inner cavity, the piston is elastically arranged in the pump body inner cavity through the elastic reset piece, the bottom of the pressing piece is in contact with the piston, the liquid storage bottle is arranged below the pump body inner cavity, and the liquid storage bottle and the pump body inner cavity are communicated; when the pressing piece is pressed, negative pressure is formed in the inner cavity of the pump body under the action of the piston, so that liquid in the liquid storage bottle enters the inner cavity of the pump body, and when the pressing piece is pressed again, the liquid in the inner cavity of the pump body is extruded to enter the atomizer. Compared with the prior art, the pressing pump is arranged above the liquid storage bottle, liquid in the liquid storage bottle is squeezed into the atomizer in a pressing mode, the liquid supply efficiency is remarkably improved, meanwhile, the liquid inlet amount is controllable, and the risk of liquid leakage is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to atomization equipment technical field especially, relates to a kind of press pump liquid structure and aerosol generating device. BACKGROUND

[0002] Aerosol generating device is a kind of product that aerosol is generated by heating atomizer atomization liquid, because it is convenient to use, taste can be changed by the deployment of atomization liquid, so in recent years, it has been widely and rapidly popularized in domestic and foreign markets.

[0003] And current aerosol generating device usually adopts passive liquid supply mode of inverted liquid storage bottle, atomization liquid slowly flows into the liquid storage space in atomizer by gravity, but this mode has the problems of low liquid supply efficiency and uncontrollability, atomization liquid relies on gravity natural flow, flow rate is slow and flow cannot be accurately adjusted, resulting in atomizer oil supply delay or excess. SUMMARY

[0004] The utility model aims at providing a kind of press pump liquid structure and aerosol generating device, to solve the technical problem that the existing aerosol generating device has low liquid supply efficiency and is uncontrollable.

[0005] To solve the above technical problems, the utility model aims at realizing by the following technical scheme:

[0006] Firstly, the utility model provides a kind of press pump liquid structure, comprising: liquid storage bottle and pump liquid component;The pump liquid component includes pump body, piston, press piece and elastic reset piece, the pump body is equipped with pump body inner chamber, the piston is elastically arranged in the pump body inner chamber by the elastic reset piece, the press piece bottom is in contact with the piston, the liquid storage bottle is arranged below the pump body inner chamber and is communicated with each other;

[0007] When the press piece is pressed, the pump body inner chamber forms negative pressure under the action of piston, to make the liquid of the liquid storage bottle enter the pump body inner chamber, when the press piece is pressed again, the liquid of the pump body inner chamber is extruded and enters the atomizer.

[0008] Further, the bottom of the pump body inner chamber is equipped with valve seat, the liquid storage bottle is equipped with liquid suction pipe and one end extends bottle mouth, the valve seat is equipped with containing groove inside, one end of the containing groove is communicated with the pump body inner chamber, the other end is communicated with the top end of the liquid suction pipe, the containing groove is equipped with valve core.

[0009] Further, the containing groove is V-shaped groove, the valve core is movably arranged in the containing groove, the valve core is movable silica gel ball, the valve core moves by the pressure change of the pump body inner chamber to open or seal the liquid suction pipe.

[0010] Further, the press pump liquid structure further comprises a shell and a liquid outlet pipe, the pump liquid assembly and the liquid storage bottle are located in the shell, the liquid outlet pipe is located at one side of the shell, one end of the liquid outlet pipe is communicated with the atomizer, and the other end of the liquid outlet pipe is communicated with the pump body cavity, and the end of the liquid outlet pipe communicated with the atomizer is provided with a one-way valve.

[0011] Further, the one-way valve is a duckbill valve, and the gas or liquid in the pump body cavity enters the atomizer through the duckbill valve, and the gas or liquid in the atomizer cannot enter the pump body cavity through the duckbill valve.

[0012] Further, the presser comprises a pressing part, a limiting part and a connecting part, the pressing part is located at the top of the presser and protrudes from the shell, the limiting part is a protrusion extending outward from the side wall of the presser, the protrusion is circumferentially arranged in the middle of the pressing part, and the connecting part is located at the bottom of the presser and is embedded in the top of the piston.

[0013] Further, a sealing element is arranged between the liquid suction pipe and the bottle opening of the liquid storage bottle.

[0014] Further, a support is arranged in the shell, the support is located in the middle of the shell, the bottle opening of the liquid storage bottle is provided with a thread, and the bottle opening of the liquid storage bottle is screw-connected with the support.

[0015] Further, the shell outside the liquid storage bottle is made of transparent material, so that the liquid level in the liquid storage bottle can be monitored in real time.

[0016] In the second aspect, the utility model also provides an aerosol generating device, comprising an atomizer and the press pump liquid structure of any one of the above embodiments, the atomizer is installed on one side of the press pump liquid structure and is detachably connected with the press pump liquid structure.

[0017] Compared with the prior art, the utility model provides a press pump liquid structure and an aerosol generating device, the gas in the pump cavity is compressed by pressing the driving piston, the liquid is extracted and transported by using the pressure difference, and finally the atomizer is stably supplied with liquid. The core structure comprises a shell, a liquid storage bottle, a pump body, a piston, a presser and an elastic reset element, and the "liquid extraction-liquid discharge" cycle is completed by two pressing actions. Compared with the traditional aerosol generating device, the press pump is arranged above the liquid storage bottle, the liquid in the liquid storage bottle is squeezed into the atomizer by pressing, the liquid supply efficiency is significantly improved, the liquid inlet amount is controllable, and the risk of liquid leakage is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the present application, the drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the premise of not deviating from the concept of the present application.

[0019] Figure 1 The structure diagram of the aerosol generating device provided by the present application is shown in the figure.

[0020] Figure 2 The cross-sectional view of the aerosol generating device provided by the present application is shown in the figure.

[0021] Figure 3 The structure diagram of the aerosol generating device provided by the present application is shown in the figure.

[0022] Figure 4 The structure diagram of the press pump liquid structure provided by the present application is shown in the figure.

[0023] Figure 5 The exploded view of the press pump liquid structure provided by the present application is shown in the figure.

[0024] Reference signs:

[0025] 1, shell; 2, liquid storage bottle; 3, pump liquid assembly; 31, pump body; 311, pump body cavity; 312, valve seat; 3121, containing groove; 3122, valve core; 32, piston; 33, pressing piece; 331, pressing part; 332, limiting part; 333, connecting part; 34, elastic reset piece; 4, liquid suction pipe; 5, liquid outlet pipe; 6, one-way valve; 7, sealing piece; 8, bracket; 9, atomizer. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0027] It should be understood that, when used in the specification and the appended claims, the terms "comprise" and "include" indicate the presence of the described features, integers, steps, operations, elements, and / or components, but do not exclude one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0028] It should also be understood that the terms used in the specification and the claims herein are for the purpose of describing particular embodiments and do not intend to limit the present application. As used in the specification and the appended claims, the singular forms "a," "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

[0029] It should be further understood that the term "and / or" used in the specification and the appended claims herein is intended to refer to any combination of one or more of the associated listed items and all possible combinations, and includes these combinations.

[0030] Please refer to Figures 1 to 5 The utility model discloses a kind of press pump liquid structures, comprising: liquid storage bottle 2 and pump liquid component 3;Pump liquid component 3 includes pump body 31, piston 32, presser 33 and elastic reset piece 34, pump body 31 is equipped with pump body inner cavity 311, piston 32 is elastically arranged in pump body inner cavity 311 by elastic reset piece 34, presser 33 bottom and piston 32 contact, liquid storage bottle 2 is located below pump body inner cavity 311 and both communicate;

[0031] When press presser 33, pump body inner cavity 311 forms negative pressure under the action of piston 32, to make the liquid of liquid storage bottle 2 enter pump body inner cavity 311, press presser 33 again, the liquid of pump body inner cavity 311 is extruded and enters to atomizer 9.

[0032] Specifically, the liquid storage bottle 2 in the embodiment is used to store the liquid to be atomized (such as aerosol substrate), and the pump liquid component 3 is located directly above the liquid storage bottle 2, is fixed with the liquid storage bottle 2 through physical connection, and ensures the sealing of liquid extraction and extraction path. The core structure of the pump liquid component 3 includes a pump body 31, a piston 32, and an elastic reset piece 34, and the like. The inside of the pump body 31 is a cylindrical cavity (pump body inner cavity 311), the top of which is open for the movement of the piston 32, and the side wall is provided with a liquid outlet pipe 5 connected to the atomizer 9. The piston 32 is in precise cooperation with the pump body inner cavity 311, and the material thereof is rubber to enhance the air tightness. The elastic reset piece 34 is a spiral spring, which is sleeved outside the piston 32, one end of which is fixed to the bottom of the pump body inner cavity 311, and the other end of which abuts against the bottom of the piston 32 to provide an upward reset force. The embodiment can realize the pumping of liquid through simple pressing operation, and the operation is simple and fast, and the liquid can be efficiently extracted from the liquid storage bottle 2 and delivered to the atomizer 9.

[0033] It can be understood that, in addition to being made of rubber and spring, the piston 32 and the elastic reset piece 34 in the embodiment can also be made of other materials with sealing property and objects with elasticity, which can be set according to actual conditions.

[0034] For example Figure 2 andFigure 5 As shown, the bottom of the pump cavity 311 is provided with a valve seat 312, the liquid storage bottle 2 is provided with a liquid suction pipe 4 extending out of the bottle mouth, the valve seat 312 is provided with a receiving groove 3121 penetrating therein, one end of the receiving groove 3121 is communicated with the pump cavity 311, and the other end is communicated with the top end of the liquid suction pipe 4, and the receiving groove 3121 is provided with a valve core 3122.

[0035] Specifically, the pump cavity 311 is the space where the piston 32 moves, responsible for containing and compressing gas or liquid, and generating the power of pumping liquid. The bottom of the pump cavity 311 is provided with a valve seat 312, the valve seat 312 is provided with a receiving groove 3121 penetrating therein, one end of the receiving groove 3121 is communicated with the pump cavity 311, and the other end is communicated with the top end of the liquid suction pipe 4, forming a channel for liquid flow, and the valve core 3122 is arranged in the receiving groove 3121 to control the flow of liquid. In this way, by arranging the valve seat 312 and the valve core 3122, the flow of liquid can be accurately controlled, avoiding backflow and leakage of liquid during the pumping process, which helps to improve the pumping efficiency and ensure that the liquid can be smoothly and quickly pumped out. Secondly, the cooperation of the valve core 3122 and the receiving groove 3121 can form a tight seal to prevent liquid leakage during the pumping process, thereby improving the reliability and durability of the pumping structure.

[0036] As shown in Figure 2 and Figure 5 , the receiving groove 3121 is a V-shaped groove, and the valve core 3122 is movably arranged in the receiving groove 3121, the valve core 3122 is a movable silica gel ball, and the valve core 3122 moves to open or seal the liquid suction pipe 4 by the change of pressure in the pump cavity 311.

[0037] Specifically, in this embodiment, the receiving groove 3121 is designed as a V-shaped groove, which is characterized by a narrow bottom and gradually widening sides. This design is conducive to the stable movement and positioning of the valve core 3122 (movable silica gel ball) in the groove. The valve core 3122 is made of movable silica gel ball, which has good elasticity and wear resistance, and good sealing performance for liquid, making it suitable as the material of the valve core 3122. The silica gel ball is movably arranged in the V-shaped groove and can move freely in the groove, but is limited by the groove wall and will not come out of the groove. When the pressure in the pump cavity 311 changes, the valve core 3122 (movable silica gel ball) will move under the action of pressure. When the piston 32 moves up and the pump cavity 311 forms a negative pressure, the silica gel ball will be pushed to the wider part of the V-shaped groove by the liquid pressure from the direction of the liquid suction pipe 4, thereby opening the channel between the liquid suction pipe 4 and the pump cavity 311, allowing liquid to flow into the pump cavity 311. When the piston 32 moves down and the pressure in the pump cavity 311 rises, the silica gel ball will be pressed to the narrow part of the bottom of the V-shaped groove by the high-pressure liquid in the pump cavity 311, thereby sealing the channel between the liquid suction pipe 4 and the pump cavity 311, preventing backflow of liquid.

[0038] As shown in Figure 2 , the press pump liquid structure also includes a housing 1 and a liquid outlet pipe 5, the pump liquid assembly 3 and the liquid storage bottle 2 are located in the housing 1, the liquid outlet pipe 5 is located on one side of the housing 1, one end of the liquid outlet pipe 5 is in communication with the atomizer 9, and the other end is in communication with the pump body cavity 311. The end of the liquid outlet pipe 5 in communication with the atomizer 9 is provided with a one-way valve 6.

[0039] Specifically, the housing 1 in the embodiment serves as the main body support structure, wrapping the liquid storage bottle 2 and the pump liquid assembly 3, providing physical protection for handheld and fixed installation. The liquid outlet pipe 5 is located on one side of the housing 1, and its design position facilitates the outflow of liquid and the connection with the atomizer 9 and the pump body cavity 311. One end of the liquid outlet pipe 5 is in communication with the atomizer 9, ensuring that the liquid can be smoothly transported from the pump body cavity 311 to the atomizer 9; the other end of the liquid outlet pipe 5 is in communication with the pump body cavity 311, forming a complete liquid transport path. A one-way valve 6 is provided on the end of the liquid outlet pipe 5 in communication with the atomizer 9, and the installation direction of the one-way valve 6 ensures that the liquid can only flow from the pump body cavity 311 to the atomizer 9, but cannot flow in the opposite direction.

[0040] As shown in Figures 2 to 5 , the one-way valve 6 is a duckbill valve, and the gas or liquid in the pump body cavity 311 enters the atomizer 9 through the duckbill valve, and the gas or liquid in the atomizer 9 cannot enter the pump body cavity 311 through the duckbill valve.

[0041] Specifically, the duckbill valve is installed on the end of the liquid outlet pipe 5 in communication with the atomizer 9, and the structure of the duckbill valve is unique, made of elastic material (such as neoprene plus artificial fiber), similar in shape to a duckbill, with the functions of automatic opening and closing. When the gas or liquid (hereinafter referred to as "fluid") in the pump body cavity 311 needs to enter the atomizer 9, the fluid exerts pressure on the duckbill valve, and as the pressure gradually increases, the outlet of the duckbill valve gradually opens, allowing the fluid to smoothly pass through the duckbill valve into the atomizer 9. When the fluid in the atomizer 9 attempts to flow back to the pump body cavity 311 in the opposite direction, the duckbill valve automatically closes under its own elasticity, effectively preventing the fluid from flowing back. The design of the duckbill valve allows the fluid to flow only from the pump body cavity 311 to the atomizer 9, achieving one-way flow. This one-way flow characteristic ensures that the atomizer 9 can continuously and stably receive fluid from the pump body cavity 311, while avoiding problems that may be caused by fluid backflow.

[0042] As shown in Figure 2 , Figure 4 , and Figure 5As shown, the pressing piece 33 includes a pressing part 331, a limiting part 332, and a connecting part 333. The pressing part 331 is located at the top of the pressing piece 33 and protrudes from the shell 1. The limiting part 332 is a protrusion extending outward from the side wall of the pressing piece 33, which is circumferentially arranged in the middle of the pressing part 331. The connecting part 333 is located at the bottom of the pressing piece 33 and is embedded in the top of the piston 32.

[0043] Specifically, in this embodiment, the pressing piece 33 is composed of three parts: the pressing part 331, the limiting part 332, and the connecting part 333. The pressing part 331 is located at the top of the pressing piece 33 and protrudes from the shell 1. This part is the part directly operated by the user and is designed to be easy to press, so that the user can easily apply pressure. The limiting part 332 is a protrusion extending outward from the side wall of the pressing piece 33, which is circumferentially arranged in the middle of the pressing part 331. The function of the limiting part 332 is to limit the movement range of the pressing part 331, ensuring that the pressing piece 33 does not deviate from the pre-set track or position during pressing, and also helps to increase the structural strength of the pressing piece 33. The connecting part 333 is located at the bottom of the pressing piece 33 and is responsible for firmly connecting the pressing piece 33 with the piston 32, so that the action of the pressing piece 33 can be accurately transmitted to the piston 32, thereby driving the movement of the piston 32 in the pump body 31. By adopting this design of the pressing piece 33 composed of the pressing part 331, the limiting part 332, and the connecting part 333, the convenience of operation and the stability of the structure are improved.

[0044] As shown in Figure 2 and Figure 5 , a sealing element 7 is provided between the liquid suction tube 4 and the bottle mouth of the liquid storage bottle 2.

[0045] Specifically, a sealing element 7 is provided between the liquid suction tube 4 and the bottle mouth of the liquid storage bottle 2. The material of the sealing element 7 is selected to have good elasticity, corrosion resistance, and sealing performance, such as silicone, rubber, etc. These materials can adapt to the shape and size of the bottle mouth and form a tight seal. This design aims to ensure that the liquid does not leak out from the gap between the liquid suction tube 4 and the bottle mouth during extraction, and at the same time prevents external impurities (such as dust, bacteria, etc.) from entering the inside of the liquid storage bottle 2, polluting the liquid.

[0046] As shown in Figure 2 , Figure 4 and Figure 5 , a support 8 is also provided in the shell 1. The support 8 is located in the middle of the shell 1. The bottle mouth of the liquid storage bottle 2 is provided with threads, and the bottle mouth of the liquid storage bottle 2 is screw-connected with the support 8.

[0047] Specifically, in this embodiment, the bracket 8 serves to fix and support the liquid storage bottle 2, ensuring its stability and safety within the housing 1. The bottle mouth of the liquid storage bottle 2 is threaded, allowing it to be threadedly connected to the bracket 8. Threaded connections offer advantages such as simple structure, convenient installation, and a secure connection. In practical applications, the bottle mouth of the liquid storage bottle 2 is aligned with the threaded hole on the bracket 8, and the bottle 2 is rotated to engage the threads on the bracket 8 until the desired tightness is achieved. This embodiment, through the bracket 8 and the threaded connection, ensures the stability of the liquid storage bottle 2 within the housing 1. Even during equipment operation, the liquid storage bottle 2 is less prone to shaking or tilting, thus guaranteeing the normal operation of the equipment and the safe storage of the liquid.

[0048] In one available embodiment, the outer casing 1 of the liquid storage bottle 2 is made of a transparent material for real-time monitoring of the liquid level inside the liquid storage bottle 2.

[0049] Specifically, the transparent housing 1 is installed on the outside of the liquid storage bottle 2, ensuring sufficient clearance between the housing 1 and the liquid storage bottle 2 to facilitate the observation and measurement of the liquid level. An observation window or scale can also be provided at an appropriate location on the housing 1 to allow the user to read the liquid level information more accurately.

[0050] In summary, the working principle of the press pump's liquid structure is as follows:

[0051] 1) When the button is pressed for the first time, the piston 32 moves downward and compresses the air. At this time, the air pressure in the pump body cavity 312 increases and needs to be released. The air is then squeezed out through the one-way duckbill valve. At the same time, the movable silicone ball is squeezed by the pressure and keeps the liquid extraction port sealed to prevent gas from entering the liquid storage bottle 2 from the liquid extraction port.

[0052] 2) When the button is released, the piston 32 is subjected to the rebound force of the elastic reset member 34, which resets the button and the piston 32. At this time, the air in the pump body cavity 312 is under negative pressure. Since the one-way duckbill valve can only release fluid from the inside to the outside and cannot absorb fluid from the outside to the inside, the valve core 3122 will be lifted upward under negative pressure to open the liquid extraction port and draw the liquid in the storage bottle 2 into the pump body cavity 312 to balance the negative pressure. At this time, there is already liquid in the pump body cavity 312.

[0053] 3) Press the button again to squeeze the liquid in the pump body cavity 312 into the atomizer 9 through the one-way duckbill valve. After all the air is expelled, the pump body cavity 312 will be full of liquid. Each press can inject about 0.5ml of liquid.

[0054] Please see Figures 1 to 5This utility model embodiment also provides an aerosol generating device, including an atomizer 9 and a press pump liquid structure as described in the above embodiment. The atomizer 9 is installed on one side of the press pump liquid structure and is detachably connected to the press pump liquid structure.

[0055] Specifically, the atomizer 9 is installed on one side of the press-pump liquid structure, and its connection to the press-pump liquid structure is detachable, such as by snap-fit, threaded connection, or plug-in connection, so that the user can replace or clean the atomizer 9 as needed. The atomizer 9 contains an atomizing core or atomizing plate. When the press-pump liquid structure pumps out liquid, the liquid enters the atomizer 9, contacts the atomizing core or atomizing plate, and is rapidly atomized under the action of electrical or thermal energy to form an aerosol. When the user presses the press 33, the piston 32 moves within the pump body 31, pumping out the liquid from the storage bottle 2 and delivering it to the atomizer 9 through a pipe or channel. The atomizer 9 atomizes the received liquid into an aerosol, which is then output to the external environment through the device's outlet (such as a nozzle or spray head). The detachable connection between the atomizer 9 and the press-pump liquid structure realizes the modular design of the device, allowing the user to easily replace or clean the atomizer 9 as needed, improving the flexibility and maintainability of the device.

[0056] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A press-pump liquid structure for supplying liquid to an atomizer, characterized in that, include: A liquid storage bottle and a pump assembly; the pump assembly includes a pump body, a piston, a pressing element, and an elastic reset element. The pump body has an internal cavity, the piston is elastically disposed within the internal cavity of the pump body through the elastic reset element, the bottom of the pressing element contacts the piston, and the liquid storage bottle is disposed below the internal cavity of the pump body and the two are connected. When the pressing element is pressed, a negative pressure is formed in the inner cavity of the pump body under the action of the piston, so that the liquid in the storage bottle enters the inner cavity of the pump body. When the pressing element is pressed again, the liquid in the inner cavity of the pump body is squeezed and enters the atomizer.

2. The press pump structure according to claim 1, characterized in that, The bottom of the pump body cavity is provided with a valve seat, the liquid storage bottle is provided with a liquid extraction tube with one end extending out of the bottle mouth, the valve seat is provided with a receiving groove through it, one end of the receiving groove is connected to the pump body cavity, and the other end is connected to the top of the liquid extraction tube, and the receiving groove is provided with a valve core.

3. The press pump structure according to claim 2, characterized in that, The receiving groove is a V-shaped groove, and the valve core is movably disposed in the receiving groove. The valve core is a movable silicone ball, and the valve core moves by the pressure change in the inner cavity of the pump body to open or seal the liquid extraction tube.

4. The press pump structure according to claim 1, characterized in that, It also includes a housing and a liquid outlet pipe. The pump liquid assembly and the liquid storage bottle are both located inside the housing. The liquid outlet pipe is located on one side of the housing. One end of the liquid outlet pipe is connected to the atomizer, and the other end is connected to the inner cavity of the pump body. A one-way valve is sleeved on the end of the liquid outlet pipe that is connected to the atomizer.

5. The press pump structure according to claim 4, characterized in that, The one-way valve is a duckbill valve, through which gas or liquid in the pump body cavity enters the atomizer, while gas or liquid in the atomizer cannot enter the pump body cavity through the duckbill valve.

6. The press pump structure according to claim 4, characterized in that, The pressing component includes a pressing part, a limiting part, and a connecting part. The pressing part is located at the top of the pressing component and protrudes from the housing. The limiting part is a protrusion extending outward from the side wall of the pressing component. The protrusion is circumferentially disposed in the middle of the pressing part. The connecting part is located at the bottom of the pressing component and is embedded in the top of the piston.

7. The press pump structure according to claim 2, characterized in that, A sealing element is provided between the liquid extraction tube and the mouth of the liquid storage bottle.

8. The press pump structure according to claim 5, characterized in that, The housing is also equipped with a support, which is located in the middle of the housing. The mouth of the liquid storage bottle is threaded and is threadedly connected to the support.

9. The press pump structure according to claim 4, characterized in that, The outer casing of the liquid storage bottle is made of transparent material, which is used to monitor the liquid level inside the liquid storage bottle in real time.

10. An aerosol generating device, characterized in that, It includes an atomizer and a press-pump liquid structure as described in any one of claims 1-9, wherein the atomizer is mounted on one side of the press-pump liquid structure and is detachably connected to the press-pump liquid structure.

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