An aerosol particle size auxiliary detection structure

Abstract

The utility model belongs to aerosol detection technical field, specifically disclose a kind of aerosol granularity auxiliary detection structure, including detection component and the connecting piece of detachable connection in its one end, the connecting piece is equipped with center hole, for the fog outlet end of the fogging atomizer of splicing;At least two air vents are equipped in the center hole periphery, for balance detection port both sides air pressure and observe fog state;The detection component includes detection tube, support rod and base, and detection hole is equipped on detection tube for laser to pass through.The utility model is closely spliced by center hole and the fogging atomizer fog outlet end, ensure that fog outlet always aligns detection port center, effectively improve the accuracy and consistency of detection data, applicable to the standardized detection of various specifications aerosol generating device.

Description

Technical Field

[0001] This utility model belongs to the field of aerosol detection technology, and specifically relates to an auxiliary detection structure for aerosol particle size. Background Technology

[0002] In the field of aerosol particle size analysis, laser particle size analyzers are widely used to measure the particle size distribution of particles generated by aerosol generating devices such as nebulizers. Currently, during the testing process, operators typically hold or simply place the aerosol device under test at the analyzer's detection port. Due to differences in the testing techniques used by different operators, the relative position and distance between the aerosol outlet and the detection port cannot be kept consistent, leading to fluctuations and errors in the test data.

[0003] In addition, most atomizers on the market have a mist outlet size of 20mm or 22mm, while the laser particle size analyzer itself is not equipped with a matching fixed structure, which cannot ensure that the mist outlet is located at the center of the detection port every time the test is performed, thus affecting the accuracy and repeatability of the test results. Utility Model Content

[0004] The purpose of this invention is to overcome the defects in the existing technology and provide an auxiliary detection structure for aerosol particle size.

[0005] This utility model provides an auxiliary detection structure for aerosol particle size, including a detection component. A connector is provided at one end of the detection component for connecting the atomizer to be tested to the detection component. The connector is plugged into and detached from the detection component. The connector includes a connector head and a central hole. The connector head has an annular structure, and the central hole extends through the connector head along its axial direction and is coaxial with the connector head. One end of the central hole is located on the end face of the connector head away from the detection component, and the other end of the central hole extends into the interior of the connector head. Ventilation holes are provided around the central hole, and at least two ventilation holes are provided.

[0006] A further embodiment is that the number of ventilation holes is two, symmetrically arranged on both sides of the central hole.

[0007] A further embodiment is that the number of ventilation holes is three, which are evenly distributed along the circumference of the connector in the annular area between the central hole and the connector.

[0008] A further embodiment is that the inner diameter of the central hole is adapted to the outer diameter of the mist outlet end of the atomizer under test, so that the atomizer under test can be tightly inserted into the central hole.

[0009] A further embodiment is that the detection assembly includes a detection tube, and the connector is inserted into the detection tube; the detection tube has a detection hole, and an external laser particle size analyzer emits a laser beam of a specific wavelength through the detection hole to complete the aerosol particle size detection; A support rod is provided at the bottom of the detection tube, and a base is provided at the bottom of the support rod.

[0010] A further option is that the support rod is a telescopic rod.

[0011] A further solution is to match the outer diameter of the connector with the inner diameter of the detection tube to achieve a tight connection.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention ensures that the mist outlet is always located at the center of the laser particle size analyzer's detection port during each test by setting a central hole that matches the outer diameter of the atomizer's mist outlet. This avoids positional deviations caused by human error and significantly reduces data errors. The plug-in connection structure facilitates quick installation and replacement of connectors of different specifications, making it suitable for atomizers of various diameters, saving adjustment time and reducing labor costs.

[0013] This invention features at least two ventilation holes around the central hole, which effectively balance the air pressure inside and outside the detection tube and prevent the aerosol flow from being affected by the pressure difference. At the same time, the ventilation holes can also serve as windows to observe the fogging situation in real time, ensuring that the detection process is stable and controllable.

[0014] The detection component of this invention is equipped with an adjustable telescopic support rod and a stable base to ensure structural stability during the detection process. It is suitable for laser particle size analyzers of different heights and types, enhancing the versatility and practicality of the device. Attached Figure Description

[0015] The following figures are for illustrative purposes only and are not intended to limit the scope of the present invention. Figure 1 : A schematic diagram of the structure of this utility model; Figure 2 : Exploded view of the structure of this utility model; Figure 3 : A schematic diagram of a connector structure; In the diagram: 1. Detection component; 2. Connector; 3. Atomizer; 4. Detection tube; 5. Detection hole; 6. Support rod; 7. Base; 8. Center hole; 9. Ventilation hole; 10. Connector; 11. Mist outlet. Detailed Implementation

[0016] To make the objectives, technical solutions, design methods, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of this utility model.

[0017] like Figure 1 and Figure 2 As shown, this utility model provides an aerosol particle size auxiliary detection structure, consisting of a detection component 1 and a connector 2. The connector 2 is pluggable at one end of the detection component 1. In this embodiment, the connector 2 is a ring-shaped connector 10 with a central through-hole 8 for inserting and fixing the mist outlet 11 of the atomizer 3 to be tested. At least two ventilation holes 9 are provided around the central hole 8 to balance the atmospheric pressure on both sides of the detection area, preventing pressure differences from affecting the stable flow of aerosols, and also serving as observation windows for real-time monitoring of the mist outlet status. The pluggable connection between the connector 2 and the detection component 1 enables rapid docking of the auxiliary structure with the laser particle size analyzer. After the mist outlet 11 of the atomizer 3 is inserted into the central hole 8, it is precisely positioned and fixed, ensuring that the mist outlet is always aligned with the center of the detection area, thus eliminating positional deviations caused by human operation.

[0018] Continue to refer to Figure 2 There are three ventilation holes 9, which are evenly distributed along the circumference of the connector 10 in the annular area between the central hole 8 and the inner wall of the connector 10. For example... Figure 3 As shown, the number of ventilation holes 9 can also be two, symmetrically arranged on both sides of the central hole 8.

[0019] In the above, the inner diameter of the central hole 8 is matched with the outer diameter of the mist outlet 11 of the atomizer 3 to be tested. Through size matching, it is ensured that the atomizer can be effectively fixed after insertion, and that the mist outlet is coaxial with the test port during each test.

[0020] Continue to refer to Figure 2 The detection assembly 1 includes a detection tube 4, and a connector 10 of a connector 2 is inserted into the detection tube 4. The outer diameter of the connector 10 is matched with the inner diameter of the detection tube 4 to ensure a tight fit between the connector 10 and the detection tube 4 and prevent displacement at the connection point. A detection hole 5 is provided on the wall of the detection tube 4 to allow the laser beam of the laser particle size analyzer to pass through. The bottom of the detection tube 4 is connected to a base 7 via a support rod 6, forming a stable support structure.

[0021] During testing, the detection tube 4 forms a detection chamber, allowing the aerosol to flow stably from one end to the other. A laser beam penetrates the aerosol through the detection hole 5 to detect particle size. In this embodiment, the support rod 6 is a telescopic rod, which can flexibly adapt to different models and detection port heights of laser particle size analyzers, improving the device's versatility. The specific testing process is as follows: the connector 10 is inserted into one end of the detection tube 4, and the mist outlet 11 of the atomizer 3 is inserted into the central hole 8. At this time, the mist outlet can be precisely aligned with the center of the detection tube 4, eliminating the need for repeated manual adjustments and saving operation time. The ventilation hole 9 of the connector 2 confirms the atmospheric pressure balance on both sides of the detection port, preventing pressure differences from causing aerosol flow disturbances. Simultaneously, the mist outlet status can be visually observed through the ventilation hole, ensuring stable testing conditions. When the atomizer 3 is turned on, the stable aerosol to be tested enters the detection tube 4. The laser particle size analyzer emits a laser beam, which passes through the aerosol particle area in the detection tube 4 through the detection hole 5. At this time, each particle in the aerosol will scatter the laser. The detector array around the laser particle size analyzer receives the scattered light signals from different angles, thereby completing the detection of aerosol particle size.

[0022] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical applications, or technical improvements to the embodiments in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A structure for auxiliary detection of aerosol particle size, characterized in that, Includes a detection component (1), and a connector (2) is provided at one end of the detection component (1) for connecting the atomizer (3) to be tested to the detection component (1). The connector (2) is plugged into and plugged into the detection component (1). The connector (2) includes a connector (10) and a center hole (8). The connector (10) is an annular structure. The center hole (8) is axially arranged through the connector (10) and coaxially arranged with the connector (10). One end of the center hole (8) is located on the end face of the connector (10) away from the detection component (1), and the other end of the center hole (8) extends into the interior of the connector (10). Ventilation holes (9) are provided around the central hole (8), and at least two ventilation holes (9) are provided.

2. The aerosol particle size auxiliary detection structure according to claim 1, characterized in that, The number of ventilation holes (9) is two, which are symmetrically arranged on both sides of the central hole (8).

3. The aerosol particle size auxiliary detection structure according to claim 1, characterized in that, The number of ventilation holes (9) is three, which are evenly distributed along the circumference of the connector (10) in the annular area between the central hole (8) and the connector (10).

4. The aerosol particle size auxiliary detection structure according to claim 1, characterized in that, The inner diameter of the central hole (8) is adapted to the outer diameter of the mist outlet (11) of the atomizer (3) under test, so that the atomizer (3) under test is tightly inserted into the central hole (8).

5. The aerosol particle size auxiliary detection structure according to claim 1, characterized in that, The detection component (1) includes a detection tube (4), and the connector (10) is inserted into the detection tube (4); a detection hole (5) is provided on the detection tube (4), and an external laser particle size analyzer emits a laser beam of a specific wavelength through the detection hole (5) to complete the aerosol particle size detection. The bottom of the detection tube (4) is provided with a support rod (6), and the bottom of the support rod (6) is provided with a base (7).

6. The aerosol particle size auxiliary detection structure according to claim 5, characterized in that, The support rod (6) is a telescopic rod.

7. The aerosol particle size auxiliary detection structure according to claim 6, characterized in that, The outer diameter of the connector (10) is adapted to the inner diameter of the detection tube (4) to achieve a tight connection.

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