Atomization core assembly with controllable atomization particle size

Abstract

The utility model discloses an atomization core assembly with controllable atomization particle size, which comprises an atomization core seat, the atomization core seat comprises an upper seat and an atomization channel which is arranged in the middle of the upper seat and extends downwards, the lower end of the atomization channel is connected with an air injection sleeve, and a mist outlet window is arranged between the air injection sleeve and the lower end of the atomization channel; the air inlet inner core is arranged in the atomization core seat and comprises an upper cover located in the upper seat and a guide column inserted into the atomization channel, a vent groove is formed in the upper seat, and an atomization impact block corresponding to the top of the air injection sleeve is arranged at the lower end of the guide column. The atomizing core assembly of the atomizing cup can solve the problem that an existing atomizing core assembly of the atomizing cup cannot accurately control the distance between an atomizing core impact point and a gas injection opening in the production and use process.

Description

Technical Field

[0001] The utility model relates to the field of medical atomization cups, in particular to an atomization core component with controllable atomization particle diameter. Background Art

[0002] The atomized particle size is the main factor affecting lung deposition performance. Research data show that for drugs to be atomized into the lungs, the particle size should be between 2 and 5 μm. Particles with a size of 5 to 10 μm are mainly deposited in the oropharynx; particles with a size of 2 to 5 μm are mainly deposited in the lungs and bronchi, and 50% to 60% are deposited in the alveoli.

[0003] If the current medical atomizer cup is to control the atomized particle size and atomization amount within a certain range of necessary optimization, the product manufacturing requirements are very strict. The screening of the atomized particle size is mainly carried out through the spacing between the atomizer core impact point and the gas injection port. To achieve a relatively preferred atomized particle size, the spacing between the atomizer core impact points is relatively small. As the core component of the medical atomizer cup, the atomizer core assembly plays a decisive role in the control of the atomized particle size. The internal atomizer core impact point and the gas injection port of the current medical atomizer cup are integrally formed and controlled by a mold. However, due to the relatively small spacing, the assembly cost of the finished product is relatively high, and the plastic parts are prone to surface burrs at the position of the atomizer core impact point and the gas injection port. For example, in the patents with publication numbers CN 207640759 U, CN 217366794 U and CN 105833398 B, there is a problem that the atomizer core impact point and the gas injection port are integrally formed, resulting in high production and assembly costs and difficult precision.

[0004] In addition, the existing atomizer core assembly has many parts, which is inconvenient for users to assemble and clean, and the accuracy is difficult to guarantee. Utility Model Content

[0005] The utility model provides an atomizer core assembly with controllable atomization particle size, which has a simple structure and can solve the problem that the atomizer core assembly of the existing atomizer cup cannot accurately control the distance between the atomizer core impact point and the gas injection port during production and use.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an atomizer core assembly with controllable atomization particle size, comprising an atomizer core seat, the atomizer core seat comprising an upper seat and an atomization channel extending downwardly from the middle of the upper seat, the lower end of the atomization channel is connected to an air jet sleeve, and a mist outlet window is arranged between the air jet sleeve and the lower end of the atomization channel; an air intake core, arranged inside the atomizer core seat, comprising an upper cover located in the upper seat and a guide column inserted into the atomization channel, a ventilation groove is arranged on the upper seat, and an atomization impact block corresponding to the top of the air jet sleeve is arranged at the lower end of the guide column, the atomization impact block is arranged on the air intake core, and the air intake core and the air jet sleeve can be separated for mold forming, so that the dimensional accuracy of the air intake core and the air jet sleeve can be effectively controlled, the assembly is convenient and reliable, and the distance between the atomizer core impact point and the gas injection port can be ensured to be kept within a preferred range when in use, so that the mist generated by the atomizer cup equipped with the atomizer core assembly can control the atomization particle size within a range suitable for treatment.

[0007] Preferably, a partition plate is provided in the middle of the upper seat, and the partition plate divides the interior of the upper seat into a ventilation cavity where the atomization channel is located and an airless cavity closed at the bottom. The area of ​​the ventilation groove within the ventilation cavity can be adjusted by rotating the upper cover, and the size of the airflow entering the atomization channel through the ventilation groove can be adjusted by rotating the upper cover, so that the amount of mist flowing out of the corresponding atomization cup from the mist outlet can be adjusted. The operation is very simple and intuitive, and the adjustment of the mist output amount is relatively accurate.

[0008] Preferably, the ventilation groove is at least one arc groove coaxial with the upper cover, and the corresponding ventilation volume can be known by observing the position of the arc groove and the length within the ventilation cavity, which is very convenient and intuitive.

[0009] Preferably, a circle of snap-fit ​​ribs is provided on the circumferential side wall of the upper cover, and a snap-fit ​​groove matching the snap-fit ​​ribs is provided on the inner side wall of the upper seat, so that the upper cover can stably rotate in the upper seat and will not fall off easily, and the installation can be completed by directly pressing down the upper cover during installation.

[0010] Preferably, the guide column is in the shape of a plate, and its two side edges are in close contact with the inner wall of the atomization channel. The guide column can locate the position of the atomization impact block, and can ensure that the atomization impact block does not move during use and assembly, thereby ensuring the accuracy of the atomized particles.

[0011] Preferably, a reinforcing rib is centrally arranged on at least one side of the guide column, and the atomizing impact block is arranged at the lower end of the guide column and the reinforcing rib, which can improve the strength of the guide column, and at the same time, the atomizing impact block can have enough space to be arranged in the guide column.

[0012] Preferably, the distance between the upper end of the jet sleeve and the atomizing impact block is a, the upper end of the jet sleeve is higher than the top of the mist outlet window, and the distance between the upper end of the jet sleeve and the top of the mist outlet window is b, wherein a<b, the upper end of the jet sleeve is higher than the top of the mist outlet window so that the atomized particles generated by the impact of the atomizing impact block are within the range of the atomizing channel and can be carried away by the airflow flowing through the atomizing channel, allowing the mist to be quickly carried away, and the atomization amount can be guaranteed when a<b.

[0013] Preferably, a plurality of upwardly extending connecting plates are arranged around the circumference on the outer side wall of the jet sleeve, and mist outlet windows are formed between adjacent connecting plates. In this way, the range of the mist outlet windows is relatively large, allowing the mist with relatively large atomized particles to fall quickly without being carried away by the airflow.

[0014] Preferably, a plurality of convex humps are arranged on the inner side wall of the upper end of the jet sleeve, so as to ensure that a gap can be formed on the inner side wall of the jet sleeve for the atomized liquid to flow.

[0015] Preferably, a baffle is provided on the outer side of the atomization channel, which can correspond to the mist outlets on different atomization cups and prevent the atomized liquid in the atomization cup from pouring out from the mist outlet.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] As the core component of the atomizer cup, the atomizer core assembly consists of two components: the air intake core and the atomizer core seat. The assembly is very simple. The atomizer impact block and the air jet are respectively arranged on the air intake core and the atomizer core seat, so that the two can be molded separately, thereby effectively controlling the dimensional accuracy of the air intake core and the atomizer core seat. The assembly is convenient and reliable, and the distance between the atomizer core impact point and the gas jet port can be kept within the preferred range during use, so that the atomizer cup equipped with the atomizer core assembly can control the atomization particle size within the range suitable for treatment, solving the problem that the atomizer core assembly of the existing atomizer cup cannot accurately control the distance between the atomizer core impact point and the gas jet port during production and use. At the same time, the atomizer core assembly also has a mist output adjustment function. By rotating the air intake core, the size of the air supply airflow entering the atomization channel through the ventilation groove can be adjusted, so that the amount of mist flowing out of the mist outlet can be adjusted. The operation is very simple and intuitive, and the adjustment of the mist output is relatively accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is the main structural diagram of the utility model;

[0019] Figure 2 This is a main cross-sectional structural diagram of the utility model;

[0020] Figure 3for Figure 2 A magnified structural diagram;

[0021] Figure 4 for Figure 2 The enlarged structure diagram at B;

[0022] Figure 5 It is a three-dimensional structural diagram of the air intake inner core described in the utility model;

[0023] Figure 6 It is a three-dimensional structural diagram of the atomizer core seat described in the utility model.

[0024] Reference numerals:

[0025] 1. Atomization core seat, 11. Upper seat, 12. Atomization channel, 13. Bump, 14. Injection sleeve, 15. Partition plate, 16. No air cavity, 17. Connecting plate, 18. Ventilation cavity, 2. Inlet core, 21. Upper cover, 22. Guide column, 23. Atomization impact block, 24. Card slot, 25. Card connection rib, 26. And reinforcing rib, 27. Ventilation slot, 3. Mist outlet window, 4. Baffle. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0027] like Figure 1-6 As shown, the utility model is to solve the problem that the atomizer core assembly of the existing atomizer cup cannot accurately control the distance between the atomizer core impact point and the gas injection port during production and use. The following technical solutions are provided: an atomizer core assembly with controllable atomization particle size, including an atomizer core seat 1, the atomizer core seat 1 includes an upper seat 11 and an atomization channel 12 arranged in the middle of the upper seat 11 and extending downward, the lower end of the atomization channel 12 is connected to an injection sleeve 14, and a mist outlet window 3 is arranged between the injection sleeve 14 and the lower end of the atomization channel 12; an air intake inner core 2 is arranged inside the atomizer core seat 1, including an upper cover 21 located in the upper seat 11 and a guide column 22 inserted into the atomization channel 12, and a ventilation groove 2 is arranged on the upper seat 11. 7. The lower end of the guide column 22 is provided with an atomizing impact block 23 corresponding to the top of the jet sleeve 14. The atomizing impact block 23 is set on the air intake core 2. The air intake core 2 and the jet sleeve 14 can be separately molded, so that the dimensional accuracy of the air intake core 2 and the jet sleeve 14 can be effectively controlled. The assembly is convenient and reliable, and the distance between the atomizing core impact point and the gas injection port can be ensured to be maintained within the preferred range during use, so that the atomizing cup equipped with the atomizing core assembly can control the atomized particle size of the mist generated within a range suitable for treatment.

[0028] As a core component in a medical nebulizer cup, the atomizer core assembly can be matched and assembled with nebulizer cups of different models and sizes. The jet sleeve 14 can be matched with the gas source seat on different nebulizer cups, so that the gas injection port at the top of the gas source seat is flush with the top of the jet sleeve 14, and the atomizer core seat 1 can be assembled with the cup body of the nebulizer cup, so the atomizer core assembly in this embodiment can be customized as a core component.

[0029] As the working principle after the atomizer core assembly is installed in the atomizer cup in this embodiment:

[0030] The lower end of the original air source seat in the atomizer cup is connected to a compressor, and the compressor can pass compressed air into the air source seat, and the upper end of the air source seat discharges compressed air. According to the siphon principle, the atomized liquid stored in the atomizer cup is sucked from the air source seat around to the gap between the jet sleeve 14 and the air source seat to form a liquid extraction gap, and flows to the jet port at the upper end of the air source seat to form a plane. The compressed air is transmitted to the medicine liquid plane through the nozzle in the atomizer cup, and the atomized liquid is cut to form atomized particles. The atomized particles collide with the atomization collision block 23, and the liquid will be smashed by collision to form countless medicine mist particles. Smaller atomized particles can rise with the air flow inhaled in the atomization channel 12 to reach the upper half of the atomizer cup, and are sucked into the atomizer cup from the ventilation groove 27 along with the patient's inhalation action. The atomized particles are brought into the lower part by the inhaled air flow, leaving the larger particles of mist in the atomizer cup, and the remaining smaller atomized particles are sucked out from the mist outlet.

[0031] In order to make the atomization core assembly in this embodiment have the function of regulating the amount of mist output, a partition plate 15 is provided in the middle of the upper seat 11, and the partition plate 15 divides the interior of the upper seat 11 into a ventilation cavity 18 where the atomization channel 12 is located and an airless cavity 16 with a closed bottom. The area of ​​the ventilation groove 27 within the ventilation cavity 18 is adjusted by rotating the upper cover 21. The size of the airflow entering the atomization channel 12 through the ventilation groove 27 can be adjusted by rotating the upper cover 21. In this way, the amount of mist output from the mist outlet of the corresponding atomization cup can be adjusted. The operation is very simple and relatively intuitive, and the adjustment of the mist output is relatively accurate.

[0032] Specifically, the amount of mist discharged from the mist outlet is controlled by the airflow entering the ventilation slot 27, so the amount of mist can be controlled by rotating the upper cover 21. Specifically, when the ventilation slots 27 are all located within the range of the airless cavity 16, the ventilation slots 27 are in a closed state and cannot be filled with air. The ventilation slots 27 can be arranged in groups, such as Figure 5As shown, they can be arranged symmetrically side by side, and the ventilation groove 27 can be proportionally entered into the range of the ventilation cavity 18 regardless of whether the upper cover 21 rotates clockwise or counterclockwise. Specifically, the ventilation groove 27 is at least one arc groove coaxial with the upper cover 21, and the corresponding ventilation volume can be known by observing the position of the arc groove and the length within the range of the ventilation cavity 18, which is very convenient and intuitive.

[0033] In this embodiment, a circle of snap-fit ​​ribs 25 are provided on the circumferential side wall of the upper cover 21, and a snap-fit ​​groove 24 matching the snap-fit ​​ribs 25 is provided on the inner side wall of the upper seat 11, so that the upper cover 21 can stably rotate in the upper seat 11 and will not easily fall off. Moreover, the installation can be completed by directly pressing down the upper cover 21 during installation. At the same time, when the snap-fit ​​ribs 25 are snap-fitted with the snap-fit ​​grooves 24, the distance between the atomizer core impact point and the gas injection port is also positioned.

[0034] In this embodiment, if Figure 5 As shown, the guide column 22 is in the shape of a plate, and its two side edges are closely attached to the inner side wall of the atomizing channel 12. The guide column 22 can locate the position of the atomizing impact block 23, and can ensure that the atomizing impact block 23 does not move during use and assembly, thereby ensuring the accuracy of the atomized particles. Both sides of the plate-shaped guide column 22 can also form a large enough space for airflow to pass through. In addition, as Figure 5 As shown, a reinforcing rib 26 is centrally arranged on at least one side of the guide column 22, and the atomizing impact block 23 is arranged at the lower end of the guide column 22 and the reinforcing rib 26, which can improve the strength of the guide column 22, and at the same time, the atomizing impact block 23 can be sufficiently arranged in the guide column 22.

[0035] In this embodiment, if Figure 4 As shown, the distance between the upper end of the jet sleeve 14 and the atomizing impact block 23 is a, the upper end of the jet sleeve 14 is higher than the top of the mist outlet window 3, and the distance between the upper end of the jet sleeve 14 and the top of the mist outlet window 3 is b, wherein a<b, the upper end of the jet sleeve 14 is higher than the top of the mist outlet window 3 so that the atomized particles generated by the impact of the atomizing impact block 23 are within the range of the atomizing channel 12, and can be carried away by the airflow flowing through the atomizing channel 12, so that the mist can be quickly carried away, and the atomization amount can be guaranteed when a<b. Specifically, the distance b between the upper end of the jet sleeve 14 and the top of the mist outlet window 3 is generally not more than 3mm, and the distance a between the upper end of the jet sleeve 14 and the atomizing impact block 23 can be selected as 0.85-1.1mm, and the atomized particle size of the atomized particles generated by this size is 2-5μm.

[0036] In this embodiment, if Figure 1As shown, a plurality of upwardly extending connecting plates 17 are arranged around the circumference on the outer side wall of the jet sleeve 14, and mist outlet windows 3 are formed between adjacent connecting plates 17. In this way, the range of the mist outlet windows 3 is relatively large, so that the mist with relatively large atomized particles can fall quickly and will not be carried away by the airflow.

[0037] like Figure 4 As shown, a plurality of convex bumps 13 are arranged on the inner side wall of the upper end of the jet sleeve 14, which can ensure that a gap for the flow of atomized liquid can be formed on the inner side wall of the jet sleeve 14. At the same time, a baffle 4 is arranged on the outer side of the atomizing channel 12, which can correspond to the atomizing outlets on different atomizing cups, and can prevent the atomized liquid in the atomizing cup from pouring out from the atomizing outlet.

[0038] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0039] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0040] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

Claims

1. An atomizer core assembly with controllable atomization particle size, characterized in that: include: An atomizer core seat (1), the atomizer core seat (1) comprising an upper seat (11) and an atomizer channel (12) arranged in the middle of the upper seat (11) and extending downward, the lower end of the atomizer channel (12) is connected to an air jet sleeve (14), and a mist outlet window (3) is arranged between the air jet sleeve (14) and the lower end of the atomizer channel (12); The air intake inner core (2) is arranged inside the atomizing core seat (1), and comprises an upper cover (21) located inside the upper seat (11) and a guide column (22) inserted into the atomizing channel (12); the upper seat (11) is provided with a venting groove (27); and the lower end of the guide column (22) is provided with an atomizing impact block (23) corresponding to the top of the jet sleeve (14).

2. The atomizer core assembly with controllable atomization particle size according to claim 1, characterized in that: A partition plate (15) is provided in the middle of the upper seat (11), and the partition plate (15) divides the interior of the upper seat (11) into a ventilation cavity (18) where the atomization channel (12) is located and an airless cavity (16) with a closed bottom. The area of ​​the ventilation groove (27) within the ventilation cavity (18) is adjusted by rotating the upper cover (21).

3. The atomizer core assembly with controllable atomized particle size according to claim 2, characterized in that: The ventilation groove (27) is at least one arc groove coaxial with the upper cover (21).

4. The atomizer core assembly with controllable atomized particle size according to claim 2, characterized in that: A circle of snap-fitting convex ribs (25) are arranged on the circumferential side wall of the upper cover (21), and a snap-fitting groove (24) matching the snap-fitting convex ribs (25) is arranged on the inner side wall of the upper seat (11).

5. The atomizer core assembly with controllable atomized particle size according to claim 1, characterized in that: The guide column (22) is in the shape of a plate, and its two side edges are in close contact with the inner side wall of the atomization channel (12).

6. The atomizer core assembly with controllable atomized particle size according to claim 5, characterized in that: A reinforcing rib (26) is centrally disposed on at least one side of the guide column (22), and the atomizing impact block (23) is disposed at the lower end of the guide column (22) and the reinforcing rib (26).

7. The atomizer core assembly with controllable atomized particle size according to claim 1, characterized in that: The distance between the upper end of the jet sleeve (14) and the atomizing impact block (23) is a, the upper end of the jet sleeve (14) is higher than the top of the mist outlet window (3), and the distance between the upper end of the jet sleeve (14) and the top of the mist outlet window (3) is b, wherein a<b.

8. The atomizer core assembly with controllable atomized particle size according to claim 1, characterized in that: A plurality of upwardly extending connecting plates (17) are arranged around the circumference of the outer side wall of the jet sleeve (14), and mist outlet windows (3) are formed between adjacent connecting plates (17).

9. The atomizer core assembly with controllable atomized particle size according to claim 1, characterized in that: A plurality of convex hulls (13) are arranged on the inner side wall of the upper end of the jet sleeve (14).

10. The atomizer core assembly with controllable atomized particle size according to claim 1, characterized in that: A baffle (4) is arranged on the outer side of the atomization channel (12).

Images