Rock salt aerosol generating device

Abstract

The utility model relates to the technical field of medical instruments, in particular to a rock salt aerosol generating device. The rock salt aerosol generating device comprises an aerosol generating structure, wherein the aerosol generating structure comprises a lower inner container, an upper inner container and a separator; a lower cavity is formed in the lower inner container, a cone is arranged at the bottom in the lower cavity, and a gas injection hole is formed in the side wall of the lower inner container; the upper inner container comprises a funnel-shaped inner container and a separator supporting part; the number of the separators is at least two, the separators are assembled in a sealed mode, and the separator air holes formed in the upper and lower adjacent separators are arranged in a staggered mode. The cup shell comprises a base, an outer shell and a top cover; the lower inner container, the base and the shell are respectively assembled in a sealing mode, an air inlet is formed in the bottom of an air input cavity formed after the base and the lower inner container are assembled, and an air outlet is formed in the top cover. Airflow in the pneumatic cavity of the rock salt aerosol generating device is more uniform and free of leakage, the separation efficiency is high, medicine powder residues are eliminated, and mounting and dismounting are convenient.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a rock salt aerosol generating device. Background Technology

[0002] Nebulized inhalation therapy is one of the commonly used methods for treating respiratory diseases. It uses a nebulizer to atomize liquid medication into tiny particles, which are then inhaled by the patient into the respiratory tract and lungs to achieve the therapeutic goal. Clinically commonly used compressor nebulizers generally include a compressor, air delivery tube, nebulizer cup, mouthpiece, and mask; the nebulizer cup is connected to the compressor via the air delivery tube, and the mouthpiece or mask is connected to the air outlet tube of the nebulizer cup.

[0003] The size of atomized particles is influenced by two factors: the compressor and the atomizing cup. The compressor provides air at a constant pressure, while the atomizing cup's manufacturing process determines the level of particle size generated. Therefore, the atomizing cup is crucial for compressor nebulizers. The atomization principle of the atomizing cup utilizes a high-speed airflow to propel liquid against an obstruction, suspending tiny droplets of water in the gas, forming an aerosol that is then delivered into the respiratory tract, achieving painless, rapid, and effective treatment. Different nebulizers directly affect the final atomization effect. Existing atomizing cups that use airflow to generate aerosols have the following problems: low aerosol generation efficiency, insufficient separation of large aerosol particles, and persistent residual powder inside the product, preventing full utilization; poor sealing of the pneumatic cavity, leading to airflow leakage, negatively impacting aerosol output performance, and wasting aerosol; and inconvenient disassembly and assembly for cleaning after use. Furthermore, existing atomizing cups are inconvenient to assemble, have high production costs, and are too large for handheld use.

[0004] Based on this, the present invention has improved the structure of the atomizing cup, resulting in a new rock salt aerosol generating device.

[0005] It should be noted that the above content falls within the inventor's technical knowledge and does not necessarily constitute prior art. Utility Model Content

[0006] This invention provides a rock salt aerosol generator, which features more uniform airflow within its pneumatic cavity and zero airflow leakage; it ensures efficient separation of large aerosol particles, eliminates powder residue, and guarantees full utilization of the powder; it is easy to install and disassemble, and convenient to use, thus solving the problems existing in the prior art.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A rock salt aerosol generating device, comprising:

[0009] An aerosol generating structure includes a lower inner liner, an upper inner liner, and a separator, which are sequentially sealed and assembled from bottom to top. A lower cavity is provided inside the lower inner liner, and a cone is provided at the bottom of the lower cavity. A gas injection hole is provided on the side wall of the lower inner liner above the cone. The upper inner liner includes a funnel-shaped inner liner and a separator support. The separator includes at least two sealed and assembled separators. Each separator consists of an annular shell and a protruding inner shell provided inside the annular shell. Separator vents are provided on the side wall of the protruding inner shell, and the separator vents on adjacent separators are staggered.

[0010] The cup shell includes a base, an outer shell, and a top cover that are sealed and assembled to the outside of the aerosol generating structure; the lower inner liner is sealed and assembled to the base and the outer shell respectively; an air inlet is provided at the bottom of the gas input cavity formed after the base and the lower inner liner are assembled; and an air outlet is provided on the top cover.

[0011] Furthermore, the lower inner liner, the upper inner liner, and the separator are connected to form a pneumatic cavity for aerosol generation.

[0012] Furthermore, after the outer shell and top cover are sealed and connected, the separator is finally fixed.

[0013] Furthermore, the cone is a conical surface formed by the upward bulge of the center of the inner bottom surface of the lower cavity, and the gas injection hole is set not lower than the top of the cone surface; the gas injection hole is set on the side wall of the lower inner liner in a gradually downward sloping manner from the outside to the inside.

[0014] Furthermore, the conical surface is a hollow conical surface.

[0015] Furthermore, the axis of the gas injection hole has a certain angle with the horizontal direction, so that the high-pressure gas through the gas injection hole on the side wall of the lower inner liner is injected into the lower cavity in a downward inclined manner. The ejected airflows affect each other and form a swirling flow around the inner wall of the lower cavity.

[0016] Furthermore, the lower inner liner and the cone inside it are integrally formed.

[0017] Furthermore, the gas injection holes are evenly spaced along the circumference of the lower inner liner.

[0018] Furthermore, the number of gas injection holes is three or more.

[0019] Furthermore, the separator support is an annular cavity with an increased inner diameter located above the funnel-shaped inner liner. After the top cover and outer shell are assembled, the bottom surface of the separator abuts against and seals the top surface of the funnel-shaped inner liner. The funnel-shaped inner liner includes a first cavity, a second cavity, and a third cavity that are connected in a continuous manner. The inner diameter of the first cavity is smaller than that of the third cavity, and the inner diameter of the second cavity is smaller than that of the first cavity. The first, second, and third cavities are smoothly connected to form the inner wall of the funnel-shaped inner liner.

[0020] Furthermore, the separator includes a first separator and a second separator that are assembled and connected. The protruding inner shell of the first separator is positioned above the top of its annular shell, and the protruding inner shell of the second separator is located inside its annular shell. A first locking protrusion is provided on the bottom inner wall of the annular shell of the first separator, and a first annular boss is provided on the top of the annular shell of the second separator. The first annular boss abuts against the bottom end of the annular shell of the first separator. A first locking groove matching the first locking protrusion is provided on the side wall of the annular shell of the second separator above the first annular boss. The first and second separators are snapped together via the first locking protrusion and the first locking groove. A first inclined surface is provided on the outer edge of the first annular boss. After the first and second separators are assembled, the connection is formed by the cooperation of the first annular boss, the first locking protrusion, the first locking groove, and the first inclined surface, creating a labyrinthine gap seal.

[0021] The separator vents of the first separator and the separator vents of the second separator are arranged in a horizontally symmetrical manner, one above the other and the other to the left and right. That is, when the separator vent on the convex inner shell sidewall of the first separator is located on the left, the separator vent on the convex inner shell sidewall of the second separator is located on the right.

[0022] Furthermore, a notch is provided on the bottom wall of the annular housing of the first separator, and a protrusion is provided on the first annular protrusion corresponding to the notch, with the protrusion matching the notch.

[0023] Furthermore, the aforementioned protrusions and recesses, in conjunction with the first locking protrusion and the first locking groove, can better prevent circumferential movement of the first and second separators after assembly, ensuring stability.

[0024] Furthermore, the rock salt aerosol generating device also includes a third separator assembled with the second separator. A second locking protrusion is provided on the inner wall of the bottom of the annular shell of the second separator, and a second annular boss is provided on the top of the third separator. The second annular boss abuts against the bottom end of the annular shell of the second separator. A second locking groove matching the second locking protrusion is provided on the side wall of the annular shell of the third separator above the second annular boss. The second and third separators are connected by the second locking protrusion and the second locking groove. A second inclined surface is provided on the outer edge of the second annular boss. After the second and third separators are assembled, the connection is formed by the cooperation of the second annular boss, the second locking protrusion, the second locking groove and the second inclined surface to form a labyrinth-type gap seal.

[0025] The separator vents on the third separator are arranged vertically to correspond to the separator vents on the first separator; an annular sealing groove is provided on the bottom surface of the third separator, and a sealing ring is provided in the annular sealing groove.

[0026] Furthermore, the opening direction of the separator's air vents is set horizontally.

[0027] Furthermore, for the separator structure with the third separator mentioned above, the aforementioned protrusion and recess structure is also provided between the second and third separators to increase the stability of the assembly.

[0028] Furthermore, the first and second locking protrusions mentioned above are long, arc-shaped locking protrusions extending circumferentially along the inner wall of the bottom of the annular shell of the corresponding separator.

[0029] Furthermore, the aforementioned first and second protrusions are symmetrically arranged on the inner wall of the annular shell of the corresponding separator in twos.

[0030] Furthermore, the cup shell seals and fixes the aerosol generating structure inside; the base, lower inner liner, outer shell, and top cover are sequentially threaded together, and a sealing ring is provided between the lower inner liner and the base; the lower inner liner and the upper inner liner are threaded together, and a sealing ring is provided at the threaded connection between the lower inner liner and the upper inner liner, and a sealing ring is provided at the bottom end of the separator at the connection between the upper inner liner and the separator; the top of the upper inner liner abuts against the inner side of the top of the outer shell; after the top cover and the outer shell are assembled, the separator seals against the separator support part of the upper inner liner, and the top of the separator extends upward into the top cover.

[0031] Furthermore, a columnar part is provided in the middle of the cavity inside the top cover. After the top cover and the outer shell are assembled, the bottom end of the columnar part abuts against the top surface of the separator; the space outside the columnar part of the top cover is the aerosol output cavity.

[0032] Furthermore, the second and third separators are assembled in the annular cavity of the separator support part of the upper inner liner.

[0033] Furthermore, an air intake connector is sealed and assembled at the air intake of the base.

[0034] Furthermore, a sealing ring is installed on the air intake connector. The air intake connector can be pulled out from the air intake port of the base, and the sealing ring here achieves a seal between it and the air intake port.

[0035] The beneficial effects of this utility model are:

[0036] This utility model of a rock salt aerosol generator employs a newly designed pneumatic cavity, enabling the production of small-volume products that can be held in one hand. This new pneumatic cavity achieves more uniform airflow, facilitating aerosol generation and eliminating powder residue, thus maximizing powder utilization. The tight sealing design prevents airflow leakage within the pneumatic cavity, further ensuring powder utilization while maintaining aerosol generation performance.

[0037] Specifically, this aerosol generator features a three-layer separator design, ensuring efficient separation of large aerosol particles. The upper inner liner connected to the separator, with its narrow central second cavity, increases airflow velocity due to the reduced cross-sectional area, leading to a decrease in local air pressure. This suction effect further promotes aerosol swirling and upward movement. The cone-shaped design of the lower inner liner and its gas injection holes ensures that the airflow entering the lower cavity swirls within the cavity after injection, influenced by the cone and the bottom surface of the lower cavity. The larger gas input cavity between the lower inner liner and the base allows for higher uniformity of airflow through multiple gas injection holes. The detachable air hose connector on the base allows users to easily connect and disconnect the air hose from the atomizing pump unit to the atomizing cup. The entire aerosol generator uses a threaded seal assembly, making installation and disassembly convenient and flexible. Users can disassemble all parts by hand during cleaning without special tools, reducing assembly costs. Attached Figure Description

[0038] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0039] Figure 1 This is a schematic diagram of the structure of this utility model;

[0040] Figure 2 for Figure 1 Sectional view along axis AA;

[0041] Figure 3 This is a schematic diagram of the separator of this utility model;

[0042] Figure 4 for Figure 3 3D structural diagram;

[0043] Figure 5 for Figure 3 BB-direction sectional view;

[0044] Figure 6 for Figure 3 Schematic diagram of the third separator in the middle;

[0045] Figure 7 This is a schematic diagram of the disassembled structure of this utility model.

[0046] In the figure, 1 is the lower inner liner, 101 is the lower cavity, 102 is the cone, 103 is the gas injection hole, 2 is the upper inner liner, 201 is the funnel-shaped inner liner, 2011 is the first cavity, 2012 is the second cavity, 2013 is the third cavity, 202 is the separator support, 3 is the separator, 31 is the annular shell, 32 is the protruding inner shell, 301 is the first separator, 302 is the second separator, 303 is the third separator, 304 is the separator vent, 305 is the first locking protrusion, 306 is the first annular boss, 307 is the first locking groove, 308 is the first inclined surface, 309 is the second locking protrusion, 310 is the second annular boss, 311 is the second locking groove, 312 is the second inclined surface, 313 is the labyrinth gap, 314 is the notch, 315 is the protrusion, 4 is the base, 5 is the outer shell, 6 is the top cover, 601 is the columnar part, 602 is the aerosol output cavity, 7 is the sealing ring, 8 is the gas input cavity, and 9 is the air inlet connector. Detailed Implementation

[0047] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0048] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0049] like Figure 1-7The diagram illustrates the structure of the rock salt aerosol generator according to this embodiment. Specifically, the aerosol generator includes a cup shell, within which an aerosol generating structure is assembled, forming a pneumatic cavity for aerosol generation. The aerosol generating structure includes a lower inner liner 1, an upper inner liner 2, and a separator 3, assembled sequentially from bottom to top. The lower inner liner and the upper inner liner are threaded together. A base 4, an outer shell 5, and a top cover 6 are sealed and assembled on the outside of this structure. The base, outer shell, and top cover constitute the aforementioned cup shell structure. An air inlet is provided at the bottom of the base 4, and an air outlet is provided on the top cover 6.

[0050] See Figure 1 , Figure 2 A lower cavity 101 is provided inside the lower inner liner 1. A cone 102 is provided at the bottom of the lower cavity. The cone is a hollow cone surface formed by the upward bulge from the center of the inner bottom surface of the lower cavity. Gas injection holes 103 are provided on the side wall of the lower inner liner above the cone. The gas injection holes are arranged on the side wall of the lower inner liner in a gradually downward sloping manner from the outside to the inside. Three or more gas injection holes are evenly spaced along the circumference of the lower inner liner.

[0051] The upper inner liner 2 includes a funnel-shaped inner liner 201 and a separator support portion 202. The funnel-shaped inner liner 201 includes a first cavity 2011, a second cavity 2012, and a third cavity 2013 that are connected in a series. The second cavity forms a narrow channel between the first and third cavities. The inner wall of the funnel-shaped inner liner between the first, second, and third cavities has a smooth arc transition. The separator support portion 202 is larger than the inner diameter of the first cavity above the first cavity, thereby forming an annular support bracket at the bottom end of the separation support portion for the separator to be fitted and placed.

[0052] See Figures 2-6The separator 3 includes a sealed assembly of a first separator 301, a second separator 302, and a third separator 303. Each separator consists of an annular shell 31 and a protruding inner shell 32 disposed within the annular shell. Separator vents 304 are provided on the sidewall of the protruding inner shell, and the separator vents on adjacent separators are staggered. The protruding inner shell of the first separator is positioned higher than the top of its annular shell, while the protruding inner shells of the second and third separators are both disposed within their respective annular shells. A first locking protrusion 305 is provided on the inner wall of the bottom of the annular housing of the first separator, and a first annular boss 306 is provided on the top of the annular housing of the second separator. The first annular boss abuts against the bottom of the annular housing of the first separator. A first locking groove 307 matching the first locking protrusion is provided on the side wall of the annular housing of the second separator above the first annular boss. The first and second separators are connected by the first locking protrusion and the first locking groove. A first inclined surface 308 is provided on the outer edge of the first annular boss. After the first and second separators are assembled, the connection is formed by the first annular boss, the first locking protrusion, the first locking groove and the first inclined surface, forming a labyrinth gap 313, which ensures a good sealing condition. A second locking protrusion 309 is provided on the inner wall of the bottom of the annular housing of the second separator, and a second annular boss 310 is provided on the top of the third separator. The second annular boss abuts against the bottom end of the annular housing of the second separator. A second locking groove 311 matching the second locking protrusion is provided on the side wall of the annular housing of the third separator above the second annular boss. The second and third separators are connected by the second locking protrusion and the second locking groove. A second inclined surface 312 is provided on the outer edge of the second annular boss. After the second and third separators are assembled, the connection is formed by the cooperation of the second annular boss, the second locking protrusion, the second locking groove and the second inclined surface to form a labyrinth-type gap seal.

[0053] The separator vents 304 of the first separator and the separator vents of the second separator are arranged horizontally in a top-bottom, left-right correspondence. The separator vents on the third separator are vertically aligned with the separator vents on the first separator; an annular sealing groove is provided on the bottom end face of the third separator, and a sealing ring 7 is provided in the annular sealing groove.

[0054] A notch 314 is provided on the bottom wall of the annular housing of both the first separator 301 and the second separator 302, and a protrusion 315 is provided on both the first and second annular protrusions. The protrusions and notches on the separators assembled vertically and vertically match the notches. The setting of the protrusions and notches, together with the setting of the locking protrusions and slots, can better prevent the separators from moving in the circumferential direction after assembly, and ensure stability.

[0055] See Figure 1 , Figure 2 and Figure 7The aforementioned base 4, lower inner liner 1, outer shell 5, and top cover 6 are sequentially threaded together. A sealing ring 7 is provided between the lower inner liner and the base. After the base and lower inner liner are assembled, a gas input cavity 8 is formed inside the base outside the lower inner liner. The gas input cavity 8 is a flow channel for high-pressure gas. The wide space design allows for high uniformity of gas flow through multiple gas injection holes. The lower inner liner and upper inner liner are threaded together. A sealing ring 7 is provided at the connection between the lower inner liner and the upper inner liner, and at the connection between the upper inner liner and the separator. The top of the upper inner liner abuts against the bottom end face of the inner side of the top of the outer shell. After the top cover 6 and outer shell 5 are threaded together, the separator seals against the separator support part of the upper inner liner. The top of the separator extends upward into the top cover 6. A columnar part 601 is provided in the middle of the cavity inside the top cover. After the top cover and outer shell are assembled, the bottom end of the columnar part abuts against the top end face of the first separator 301. The space outside the columnar part is the aerosol output cavity 602.

[0056] After the above structures are assembled, both the cup shell and the aerosol generating structure are sealed and fixed.

[0057] An air inlet connector 9 is sealed and assembled at the air inlet of the base. A sealing ring is set on the air inlet connector. The air inlet connector can be pulled out from the air inlet of the base. The setting of the sealing ring here achieves the seal between it and the air inlet.

[0058] Working principle and process of the aerosol generator:

[0059] The high-pressure gas output from the atomizing pump is introduced into the gas input chamber 8 through a pipe and an air inlet connector 9 connected to the pipe. The high-pressure gas is then evenly distributed through the gas input chamber 8 to the gas injection holes 103 located on the side wall of the lower inner liner 1, and then injected into the lower chamber 101 through these holes. The high-pressure gas is injected into the lower chamber at a downward angle, and the ejected airflows interact, forming a swirling flow around the inner wall of the lower chamber 101. The evenly distributed gas flow from the injection holes helps to generate a stable and uniform swirling flow within the lower chamber 101. When the circular swirling flow in the lower chamber 101 comes into contact with the powder, it generates shear force, carrying away some of the powder, and during rotation, it diffuses the powder, generating an aerosol. The rotation direction of the circular swirling flow depends on the arrangement of the multiple gas injection holes 103. Both clockwise and counterclockwise rotation can be used to generate aerosols; the stable swirling flow helps to ensure a uniform concentration of the generated aerosol. As new high-pressure gas is continuously injected into the lower cavity 101, the swirling flow inside the lower cavity will rotate and rise.

[0060] After entering the upper inner liner 2, the swirling stream sequentially passes through the third chamber 2013, the second chamber 2012, and the first chamber 2011. Because the second chamber narrows, the rising swirling stream experiences a decrease in cross-sectional area and increased gas velocity as it passes through this narrow section. This leads to a decrease in local air pressure at the narrow section, creating a suction effect (Venturi effect) on the airflow within the lower chamber 101. This facilitates the upward movement of the aerosol swirling stream. The upward speed of the swirling stream is much lower than its rotational speed; this ensures that the swirling stream has sufficient time to carry enough powder and generate a sufficiently concentrated aerosol. The aerosol-carrying airflow, rising to the separator support 202 position of the upper inner liner 2, enters the separator cavity of the third separator 303 through the separator vent 304 located on the separator 3. During this process, because the separator vent is located on the side of the third separator, the airflow needs to undergo a sharp turn of approximately 90 degrees before entering the separator vent 304 of the third separator. This causes most of the large aerosol particles, due to their greater mass, to be unable to undergo a sharp turn and to separate from the airflow, not entering the separator vent 3, but remaining in the upper inner liner 2 or settling into the lower cavity 101. The aerosol-carrying airflow entering the separator cavity of the third separator continues upward. The aerosol-laden airflow enters the separator cavity of the second separator 302 through the separator vent 304 located on the other side. During this process, because the separator vent of the second separator is located on the opposite side, the airflow needs to undergo a sharp turn of approximately 180 degrees to enter. This also causes most large aerosol particles, due to their greater mass, to not be able to undergo such a sharp turn and separate from the airflow, thus not entering the separator vent 304 of the second separator and remaining in the separator cavity of the third separator. The airflow carrying aerosols that enters the separator cavity of the second separator then passes through the separator vent 304 located on the first separator 301 again and enters the aerosol output cavity 602 inside the top cover 6. During this process, because the separator vent 304 of the first separator 301 is again located on the other side, the airflow again undergoes a sharp turn of approximately 180 degrees to enter this separator vent. This causes most large aerosol particles, due to their greater mass, to not be able to undergo such a sharp turn and separate from the airflow, thus not entering the separator vent of the first separator and remaining in the separator cavity of the second separator. Thus, after being separated by the three-layer separator, the aerosol-carrying airflow that finally enters the aerosol output chamber 602 has a significantly lower content of large aerosol particles compared to the airflow in the upper inner liner 2 and the lower chamber 101. This has a significant positive impact on the effectiveness of medical treatment, resulting in higher aerosol separation efficiency. Simultaneously, the aerosol particles in the aforementioned retained airflow will repeatedly pass upwards through the separator, gradually reducing their size, eliminating drug powder residue, and ensuring full utilization of the drug powder.

[0061] The above aerosol generators are easy to install and disassemble, convenient to use, have a small cup size, are easy to grip, and require no additional tools for disassembly, making them highly practical.

[0062] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0063] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model. Furthermore, in practical applications, the specific installation method of this utility model can be appropriately adjusted and optimized according to factors such as the specific filter press model, working environment, and process requirements to better meet the needs of actual production.

[0064] Any aspects of this utility model not described in detail are known to those skilled in the art.

Claims

1. A rock salt aerosol generating device, characterized by, The application relates to an aerosol generating structure, which comprises a lower inner container, an upper inner container and a separator which are sealed and assembled in sequence from bottom to top; a lower cavity is arranged in the lower inner container, a cone is arranged at the bottom of the lower cavity, and a gas injection hole is arranged on the side wall of the lower inner container above the cone; the upper inner container comprises a funnel-shaped inner container and a separator supporting part; the separator comprises at least two separators which are sealed and assembled, each of the separators is composed of an annular shell and a convex inner shell arranged in the annular shell, a separator gas hole is arranged on the side wall of the convex inner shell, and the separator gas holes on the upper and lower adjacent separators are staggered. The cup shell comprises a base, an outer shell and a top cover which are sealed and assembled outside the aerosol generating structure; the lower inner container is sealed and assembled with the base and the outer shell respectively, and an air inlet is arranged at the bottom of the gas input cavity formed after the base and the lower inner container are assembled; and an air outlet is arranged on the top cover. The cone is a conical surface formed by rising from the center of the inner bottom surface of the lower cavity, and the gas injection hole is arranged at the top end of the conical surface; the gas injection hole is arranged on the side wall of the lower inner container and gradually inclined downward from outside to inside.

2. The rock salt aerosol generating device according to claim 1, characterized in that, The lower inner container is integrally formed with the cone arranged therein.

3. The rock salt aerosol generating device according to claim 1, characterized in that, The gas injection holes are uniformly and spacedly arranged along the circumference of the lower inner container.

4. The rock salt aerosol generating device of claim 1, wherein, The separator supporting part is an annular cavity with an increased inner diameter arranged above the funnel-shaped inner container, the bottom surface of the separator abuts against and is sealed with the top surface of the funnel-shaped inner container after the top cover and the outer shell are assembled; the funnel-shaped inner container comprises a first cavity, a second cavity and a third cavity which are arranged in communication, the inner diameter of the first cavity is smaller than that of the third cavity, the inner diameter of the second cavity is smaller than that of the first cavity, and the inner side wall of the funnel-shaped inner container between the first, second and third cavities is a smooth arc surface.

5. The rock salt aerosol generating device of claim 1, wherein, The separator comprises a first separator and a second separator which are assembled and connected, the convex inner shell of the first separator is arranged higher than the top end of the annular shell, the convex inner shell of the second separator is arranged in the annular shell; a first clamping convex is arranged on the inner wall of the bottom of the annular shell of the first separator, a first annular boss is arranged on the top of the annular shell of the second separator, the first annular boss abuts against the bottom end of the annular shell of the first separator, a first clamping groove matched with the first clamping convex is arranged on the side wall of the annular shell of the second separator above the first annular boss, the first and second separators are connected through the first clamping convex and the first clamping groove, and a first inclined surface is arranged outside the first annular boss; after the first and second separators are assembled, the connection part is matched through the first annular boss, the first clamping convex, the first clamping groove and the first inclined surface, and a labyrinth seal state is formed.

6. The rock salt aerosol generating device of claim 1, wherein, The separator gas hole of the first separator and the separator gas hole of the second separator are arranged in one-above-the-other and left-right correspondence in the horizontal direction. A notch is arranged on the bottom wall of the annular shell of the first separator, and a convex block matched with the notch is arranged on the first annular boss.

7. The rock salt aerosol generating device of claim 6, wherein, ​ 8. The rock salt aerosol generating device of claim 6, wherein, The third separator is assembled with the second separator, a second clamping protrusion is arranged on the inner wall of the bottom of the annular shell of the second separator, a second annular protrusion is arranged on the top of the third separator, the second annular protrusion abuts against the bottom end of the annular shell of the second separator, a second clamping slot matched with the second clamping protrusion is arranged on the side wall of the annular shell of the third separator above the second annular protrusion, the second and third separators are buckled and connected through the second clamping protrusion and the second clamping slot, and a second inclined surface is arranged on the outer edge of the second annular protrusion; after the second and third separators are assembled, the connection is in a labyrinth gap sealing state through the second annular protrusion, the second clamping protrusion, the second clamping slot and the second inclined surface; The separator air holes on the third separator are arranged in a one-on-top-of-another mode with the separator air holes on the first separator; an annular sealing groove is arranged on the bottom end face of the third separator, and a sealing ring is arranged in the annular sealing groove.

9. The rock salt aerosol generating device of claim 1, wherein, The cup shell seals and fixes the aerosol generating structure in the inside; the base, the lower inner container, the shell and the top cover are sequentially and threadedly connected, a sealing ring is arranged between the lower inner container and the base; the lower inner container and the upper inner container are threadedly connected, a sealing ring is arranged at the connection between the lower inner container and the upper inner container, and a sealing ring is arranged at the connection between the upper inner container and the separator; the top end of the upper inner container abuts against the inner side of the top of the shell; after the top cover and the shell are assembled, the separator abuts against the separator bearing part of the upper inner container, and the top of the separator extends upwards into the top cover.

10. The rock salt aerosol generating device of claim 1, wherein, An air inlet connector is sealingly assembled at the air inlet of the base.

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