Trapping device and testing device

Abstract

The application discloses a trapping device and a testing device. The trapping device comprises a clamping assembly, the clamping assembly comprises a clamping cavity, a filter sheet is installed in the clamping cavity, the clamping assembly comprises an air inlet part and an air outlet part which are oppositely arranged, and the air inlet part and the air outlet part are in communication with the clamping cavity; a first interface and a first connecting pipe, the first interface is arranged at the air inlet part, a first end of the first connecting pipe is in communication with the air inlet part through the first interface, and a second end of the first connecting pipe is configured to be connected with an air outlet of an atomization device, wherein a part of the first interface and the first end of the first connecting pipe is in the shape of a pagoda interface. In this way, air leakage of a connecting part of the first connecting pipe and the first interface can be avoided, and the sealing performance of the connecting part of the first connecting pipe and the first interface can be ensured.

Description

Technical Field

[0001] This application belongs to the field of atomization device testing, specifically relating to a collection device and a testing device. Background Technology

[0002] Typically, aerosols emitted from nebulizers need to be collected for subsequent testing. Methods for collecting aerosols from nebulizers include Cambridge filter collection, cold trap collection, and solvent collection. When using Cambridge filter collection, the Cambridge filter needs to be installed in a holder to collect the aerosols emitted from the nebulizer. After pretreatment steps such as solvent extraction and concentration, the aerosols are analyzed using instruments such as chromatography-mass spectrometry.

[0003] However, since the existing clamp and atomizing device need to be connected through a connecting pipe, air leakage can easily occur in the connecting pipe between the clamp and the atomizing device, thus affecting the test results. Utility Model Content

[0004] The purpose of this application is to provide a collection device and a testing device, which at least solves the problem that air leakage is easy to occur when the atomizing device and the clamp are connected, thus affecting the test results.

[0005] This application provides a collection device for collecting aerosols emitted from an atomizing device. The collection device includes: A clamping assembly includes a clamping cavity in which a filter is installed. The clamping assembly includes an air inlet and an air outlet disposed opposite to each other, and both the air inlet and the air outlet are in communication with the clamping cavity. A first interface and a first connecting tube, wherein the first interface is disposed at the air inlet, the first end of the first connecting tube is connected to the air inlet through the first interface, and the second end of the first connecting tube is configured to connect to the air outlet of the atomizing device, wherein the portion where the first interface and the first end of the first connecting tube are connected is in the shape of a pagoda interface.

[0006] In some embodiments, the air intake and the first interface are an integral fixed structure.

[0007] In some embodiments, the air intake and the first interface are detachable separate structures, the air intake is an air intake pipe connected to the clamping assembly, and the air intake pipe is configured to be detachably connected to the first interface with different outer peripheral sizes. One end of the air intake pipe is connected to the clamping cavity, and the other end of the air intake pipe is interference-fitted with the first interface.

[0008] In some embodiments, the diameter of the end of the air intake pipe connected to the first interface is adjustable to accommodate the first interface of different sizes. The end of the air intake pipe connected to the first interface includes a multi-layer pipe structure, and each adjacent two layers of the pipe structure are detachably connected.

[0009] In some embodiments, the trapping device further includes a second interface and a second connecting pipe; The second interface is located at the air outlet. The first end of the second connecting tube is connected to the air outlet through the second interface. The second end of the second connecting tube is configured to connect to the air intake device. The part where the second interface and the second end of the second connecting tube are connected is in the shape of a pagoda interface.

[0010] In some embodiments, the air outlet and the second interface are an integral fixed structure; Alternatively, the air outlet and the second interface can be detachable and separate. In some embodiments, both the air inlet and the air outlet are gas pipes, and the length of the air inlet is shorter than the length of the air outlet.

[0011] In some embodiments, the clamping assembly includes a first housing and a second housing; The first box and the second box are detachably connected to form the clamping cavity. The air inlet is located on the side of the first box away from the second box, and the air outlet is located on the side of the second box away from the first box.

[0012] In some embodiments, the first box body has an internal thread on its inner wall facing the second box body, and the second box body has an external thread on its outer wall facing the first box body; The first housing and the second housing are detachably connected by a threaded connection between internal and external threads. In some embodiments, this application provides a testing device, including an atomizing device, an inhalation device, and a collection device as described in any of the above embodiments; The air inlet of the atomizing device and the air outlet of the collecting device are connected, and the air intake device and the air outlet of the collecting device are connected.

[0013] In this embodiment, since the clamping assembly includes a clamping cavity in which a filter is installed, and the clamping assembly includes an air inlet and an air outlet that are disposed opposite to each other, and both the air inlet and the air outlet are in communication with the clamping cavity, the filter can be installed through the clamping assembly, and the aerosol entering from the air inlet can be contained through the clamping cavity. Furthermore, since the first interface is located at the air inlet, the first end of the first connecting tube is connected to the air inlet through the first interface, and the second end of the first connecting tube is configured to connect to the air outlet of the atomizing device. The part where the first interface and the first end of the first connecting tube are connected is in the shape of a pagoda interface. Therefore, the outer peripheral dimension of the part of the first interface near the clamping component is larger than the outer peripheral dimension of the part away from the clamping component. As the first connecting tube extends along the axis of the air inlet towards the clamping component on the outer peripheral surface of the first interface, the gap between the connection part of the first connecting tube and the first interface gradually decreases until the first connecting tube and the first interface are interference-fitted. This avoids air leakage at the connection part of the first connecting tube and the first interface and helps to ensure the sealing of the connection part of the first connecting tube and the first interface. Attached Figure Description

[0014] Figure 1 This diagram illustrates one of the clamping component structures provided in an embodiment of this application. Figure 2 This is a second schematic diagram of a clamping component structure provided in an embodiment of this application; Figure 3 This is a schematic diagram of the structure of a testing device provided in an embodiment of this application.

[0015] Figure label: 1: First connecting pipe; 2: Second connecting pipe; 10: Clamping assembly; 11: First housing; 12: Second housing; 101: Air inlet; 1011: Air inlet pipe; 102: Air outlet; 20: First interface; 30: Second interface; 100: Atomizing device; 200: Inhalation device. Detailed Implementation

[0016] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0017] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0018] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0019] In related technologies, there is a problem that when the atomizing device and the clamp are connected, air leakage is easy to occur, which in turn affects the test results.

[0020] Based on this, this application changes the structure of the clamping assembly included in the collection device to avoid air leakage when the atomizing device and the clamp are connected.

[0021] In some implementations, such as Figures 1 to 3 As shown, this application provides a collection device for collecting aerosols emitted from an atomizing device. The collection device includes: The clamping assembly 10 includes a clamping cavity in which a filter is installed. The clamping assembly 10 includes an air inlet 101 and an air outlet 102 that are disposed opposite to each other, and both the air inlet 101 and the air outlet 102 are in communication with the clamping cavity.

[0022] The first interface 20 and the first connecting pipe 1 are provided at the air inlet 101. The first end of the first connecting pipe 1 is connected to the air inlet 101 through the first interface 20. The second end of the first connecting pipe 1 is configured to connect to the air outlet of the atomizing device. The part where the first interface 20 and the first end of the first connecting pipe 1 are connected is in the shape of a pagoda interface.

[0023] As can be seen from the above embodiments, in this application embodiment, since the clamping assembly 10 includes a clamping cavity in which a filter is installed, and the clamping assembly 10 includes an air inlet 101 and an air outlet 102 disposed opposite to each other, and both the air inlet 101 and the air outlet 102 are in communication with the clamping cavity, the filter can be installed through the clamping assembly 10, and the aerosol entering from the air inlet 101 can be contained through the clamping cavity. Furthermore, since the first interface 20 is located at the air inlet 101, the first end of the first connecting pipe 1 is connected to the air inlet 101 through the first interface 20, and the second end of the first connecting pipe 1 is configured to connect to the air outlet of the atomizing device. The part where the first interface 20 and the first end of the first connecting pipe 1 are connected is in the shape of a pagoda interface. Therefore, the outer peripheral dimension of the part of the outer peripheral surface of the first interface 20 near the clamping component 10 is larger than the outer peripheral dimension of the part away from the clamping component 10. As the first connecting pipe 1 is connected to the outer peripheral surface of the first interface 20 along the extension direction of the axis of the air inlet 101 towards the clamping component 10, the gap between the connection part of the first connecting pipe 1 and the first interface 20 gradually decreases until the first connecting pipe 1 and the first interface 20 are interference-fitted. This avoids air leakage at the connection part of the first connecting pipe 1 and the first interface 20, which helps to ensure the sealing of the connection part of the first connecting pipe 1 and the first interface 20.

[0024] In the above embodiments, the clamping component 10 can be a split structure, an integral structure, or other forms of structures with clamping cavities; this application does not limit this. The filter sheet installed in the clamping cavity can be a Cambridge filter, a glass microfiber filter, a polycarbonate filter, a cellulose filter, or other filter sheet capable of filtering particulate components in aerosols. It should be noted that if the clamping component 10 is an integral structure, appropriate structures need to be provided on the clamping component 10 to facilitate the placement and removal of the filter sheet. In addition, the clamping cavity should be a sealed cavity structure to avoid aerosol leakage.

[0025] The air inlet 101 and air outlet 102 provided on the clamping assembly 10 can be through-hole structures inherent in the clamping assembly 10 itself, or pipe structures installed on the clamping assembly 10. The air inlet 101 is used to introduce the aerosol discharged from the atomizing device 100 into the clamping cavity through the first pipe 1, and the air outlet 102 is used to extract the aerosol from the clamping cavity. In addition, the air inlet 101 and the first interface 20 can be an integral fixed structure, or the air inlet 101 and the first interface 20 can be detachable separate structures; this embodiment does not limit this.

[0026] The first interface 20, located outside the air intake 101, is a tubular structure. A first through hole is formed inside the first interface 20, providing installation space for the air intake 101 and allowing the first connecting pipe 1 to connect with the air intake 101. It should be noted that the outer circumference of the first interface 20 can be understood as the perimeter of its outer surface. For example, when the first interface 20 is a frustum-shaped structure, its outer circumference is the circumference of the cross-section corresponding to the first interface 20.

[0027] Regarding the connection method between the first interface 20 and the atomizing device 100, such as Figure 2 As shown, the first interface 20 and the air outlet of the atomizing device 100 are connected by a first connecting pipe 1. The air inlet 101 is at least partially located inside the first interface 20, and the first connecting pipe 1 is sleeved on the outer peripheral surface of the first interface 20. Thus, since the first interface 20 and the atomizing device 100 are connected by the first connecting pipe 1, and the air inlet 101 is at least partially located inside the first interface 20, and the first connecting pipe 1 is connected to the outer peripheral surface of the first interface 20, the air outlet of the atomizing device 100 and the air inlet 101 can be connected through the first connecting pipe 1, allowing the aerosol discharged from the air outlet of the atomizing device 100 to be input into the air inlet 101 through the first connecting pipe 1. It should be noted that, since the connection between the first interface 20 and the first end of the first connecting tube 1 is pagoda-shaped, as the first connecting tube 1 is continuously screwed in, the gap between the inner wall of the first connecting tube 1 and the outer peripheral surface of the first interface 20 gradually decreases until the inner wall of the first connecting tube 1 and the outer peripheral surface of the first interface 20 are completely fitted together, resulting in an interference fit between them. Furthermore, the interference fit between the first interface 20 and the first connecting tube 1 ensures the sealing at the connection point, guaranteeing the sealing of the air outlet of the atomizing device 100 and the air inlet path of the clamping assembly 10. Moreover, sealing can be achieved without adding seals during the entire assembly process, thus preventing air leakage caused by the aging and failure of the sealing ring.

[0028] In some embodiments, the air intake 101 and the first interface 20 are an integral fixed structure.

[0029] In this embodiment, since the air intake 101 and the first interface 20 are integral fixed structures, both the air intake 101 and the first interface 20 are part of the clamping assembly 10. That is, the air intake 101 is a through hole structure that connects the clamping assembly 10 and the first interface 20. As a result, the air intake 101 and the first interface 20 do not need to be connected to achieve a seal, thus preventing air leakage between the air intake 101 and the first interface 20.

[0030] It should be noted that since different specifications of atomizing devices 100 need to be equipped with first connecting tubes 1 of different diameters, in order to adapt to the aerosol collection requirements discharged from the air outlet of different specifications of atomizing devices 100, the first connecting tube 1 and the first interface 20 need to be compatible.

[0031] In some embodiments, the air intake 101 and the first interface 20 are detachable separate structures. The air intake 101 is an air intake pipe 1011 connected to the clamping assembly 10. The air intake pipe 1011 is configured to be detachably connected to the first interface with different outer peripheral sizes. One end of the air intake pipe 1011 is connected to the clamping cavity, and the other end of the air intake pipe 1011 is press-fitted with the first interface 20.

[0032] In this embodiment, since the air intake 101 and the first interface 20 are detachable and separate structures, the air intake 101 is an air intake pipe 1011 connected to the clamping assembly 10. The air intake pipe 1011 is configured to be detachably connected to the first interface with different outer peripheral sizes. One end of the air intake pipe 1011 is connected to the clamping cavity, and the other end of the air intake pipe 1011 is press-fitted with the first interface 20. Therefore, when the specifications of the atomizing device 100 change, causing the diameter of the first connecting pipe 1 connected to the air outlet of the atomizing device 100 to change, the first interface 20 can be removed from the air intake pipe 1011 and then the first interface 20 that matches the diameter of the first connecting pipe 1 can be installed. For example, an air inlet hole can be formed on one side wall of the clamping assembly 10. Multiple air inlet pipes 1011 have the same diameter at the end connected to the clamping assembly 10, allowing each air inlet pipe 1011 to be installed on the clamping assembly 10 through the air inlet hole. However, the diameters of the ends of the multiple air inlet pipes 1011 connected to the first interface 20 are different, allowing each first interface 20 to have a compatible air inlet pipe 1011. Thus, if the specifications of the atomizing device 100 change, resulting in a change in the diameter of the first connecting pipe 1, the first interface 20 with a compatible outer circumference can be replaced, and the air inlet pipe 1011 compatible with the first interface 20 can also be replaced. This allows the clamping assembly 10 to adapt to the detection requirements of atomizing devices 100 of different specifications, thereby reducing the manufacturing cost of the collection device and improving its adaptability.

[0033] In some embodiments, the diameter of the end where the intake pipe 1011 is connected to the first interface 20 is adjustable to accommodate different sizes of the first interface 20. The end where the intake pipe 1011 is connected to the first interface 20 includes a multi-layer pipe structure, and each pair of adjacent pipe structures is detachably connected.

[0034] In this embodiment, since the diameter of the end connecting the air intake pipe 1011 and the first interface 20 is adjustable to accommodate different sizes of the first interface 20, and the end connecting the air intake pipe 1011 and the first interface 20 includes a multi-layer pipe structure with detachable connections between adjacent layers, when the specifications of the atomizing device 100 change, causing a change in the diameter of the first connecting pipe 1, the number of layers of the pipe structure at the end connecting the air intake pipe 1011 and the first interface 20 can be changed to accommodate the size of the first interface 20. This allows the clamping assembly 10 to adapt to the detection requirements of atomizing devices 100 of different specifications, thereby reducing the manufacturing cost of the collection device and improving its adaptability. It should be noted that in the above embodiment, the multi-layer pipe structure at the end connecting the air intake pipe 1011 and the first interface 20 can be detachably connected by sliding connection, snap-fit, or adhesive, and this application embodiment does not limit this.

[0035] In some embodiments, the trapping device further includes a second interface 30 and a second connecting pipe 2. The second interface 30 is disposed at the air outlet 102. The first end of the second connecting pipe 2 is connected to the air outlet 102 through the second interface 30. The second end of the second connecting pipe 2 is configured to connect to the suction device 200. The portion where the second interface 30 and the first end of the second connecting pipe 2 are connected is in the shape of a pagoda interface.

[0036] In this embodiment, since the second interface 30 is located at the air outlet 102, the first end of the second connecting pipe 2 is connected to the air outlet 102 through the second interface 30, and the second end of the second connecting pipe 2 is configured to connect to the suction device 200. The part where the second interface 30 and the first end of the second connecting pipe 2 are connected is in the shape of a pagoda interface. Therefore, the outer peripheral dimension of the part of the second interface 30 near the clamping component 10 is larger than the outer peripheral dimension of the part away from the clamping component 10. As the second connecting pipe 2 is connected to the clamping component 10 along the extension direction of the axis of the air outlet 102 on the outer peripheral surface of the clamping component 10, the gap between the connection part of the second connecting pipe 2 and the second interface 30 gradually decreases until an interference fit is achieved. This avoids air leakage at the connection part of the second connecting pipe 2 and the second interface 30, which helps to ensure the sealing of the air outlet path of the suction device 200 and the clamping component 10, and further improves the overall sealing of the collection device.

[0037] It should be noted that the shape and structure of the second interface 30 are similar to those of the first interface 20. The second interface 30 has a second through hole inside, which provides installation space for the air supply section 102. It should also be noted that the outer perimeter of the second interface 30 can be understood as the circumference of its outer surface. For example, when the second interface 30 has a frustum-shaped structure, its outer perimeter is the circumference of the corresponding cross-section of the second interface 30.

[0038] In some embodiments, the air outlet 102 and the second interface 30 are integral fixed structures, or the air outlet 102 and the second interface 30 are detachable separate structures.

[0039] In this embodiment, when the air outlet 102 and the second interface 30 are integrally fixed structures, both the air outlet 102 and the second interface 30 are part of the clamping assembly 10. That is, the air outlet 102 is a through-hole structure connecting the clamping assembly 10 and the second interface 30. This allows for sealing without connection between the air outlet 102 and the second interface 30, preventing air leakage. When the air outlet 102 and the second interface 30 are detachable separate structures, if the specifications of the suction device 200 change, causing a change in the diameter of the second connecting pipe 2 connected to the suction device 200, the second interface 30 can be detached from the air outlet 102, and a second interface 30 with a diameter compatible with the second connecting pipe 2 can be installed.

[0040] In some embodiments, both the air inlet 101 and the air outlet 102 are pipe structures 1011, and the length of the air inlet 101 is shorter than the length of the air outlet 102. This shortens the path of the aerosol during the air intake process, reduces the probability of aerosol condensation, and improves detection accuracy.

[0041] Regarding the structure of the clamping assembly 10, in some embodiments, such as Figure 1 As shown, the clamping assembly 10 includes a first housing 11 and a second housing 12; the first housing 11 and the second housing 12 are detachably connected to form a clamping cavity, an air inlet 101 is disposed on the side of the first housing 11 away from the second housing 12, and an air outlet 102 is disposed on the side of the second housing 12 away from the first housing 11.

[0042] In this embodiment, the clamping assembly 10 includes a first housing 11 and a second housing 12; the first housing 11 and the second housing 12 are detachably connected to form a clamping cavity. An air inlet 101 is located on the side of the first housing 11 away from the second housing 12, and an air outlet 102 is located on the side of the second housing 12 away from the first housing 11. Therefore, the detachable connection between the first housing 11 and the second housing 12 facilitates the placement and removal of the filter. It should be noted that the detachable connection between the first housing 11 and the second housing 12 can be achieved through snap-fit, threaded connection, riveting, or other methods; this embodiment does not limit this approach.

[0043] In some embodiments, the first housing 11 has an internal thread on its inner wall facing the second housing 12, and the second housing 12 has an external thread on its outer wall facing the first housing 11. The first housing 11 and the second housing 12 are detachably connected by a threaded connection between the internal and external threads. This not only achieves a detachable connection between the first housing 11 and the second housing 12 through the aforementioned threaded connection, but also ensures the airtightness of the clamping cavity formed between the first housing 11 and the second housing 12.

[0044] As can be seen from the above embodiments, in this application embodiment, since the clamping assembly 10 includes a clamping cavity in which a filter is installed, and the clamping assembly 10 includes an air inlet 101 and an air outlet 102 disposed opposite to each other, and both the air inlet 101 and the air outlet 102 are in communication with the clamping cavity, the filter can be installed through the clamping assembly 10, and the aerosol entering from the air inlet 101 can be contained through the clamping cavity. Furthermore, since the first interface 20 is located at the air inlet 101, the first end of the first connecting pipe 1 is connected to the air inlet 101 through the first interface 20, and the second end of the first connecting pipe 1 is configured to connect to the air outlet of the atomizing device. The part where the first interface 20 and the first end of the first connecting pipe 1 are connected is in the shape of a pagoda interface. Therefore, the outer peripheral dimension of the part of the outer peripheral surface of the first interface 20 near the clamping component 10 is larger than the outer peripheral dimension of the part away from the clamping component 10. As the first connecting pipe 1 is connected to the outer peripheral surface of the first interface 20 along the extension direction of the axis of the air inlet 101 towards the clamping component 10, the gap between the connection part of the first connecting pipe 1 and the first interface 20 gradually decreases until the first connecting pipe 1 and the first interface 20 are interference-fitted. This avoids air leakage at the connection part of the first connecting pipe 1 and the first interface 20, which helps to ensure the sealing of the connection part of the first connecting pipe 1 and the first interface 20.

[0045] In some embodiments, such as Figure 3As shown, this application embodiment also provides a testing device, including an atomizing device 100, an inhalation device 200, and a collection device as described in any of the above embodiments; the atomizing device 100 and the air inlet 101 of the collection device are connected, and the inhalation device 200 and the air outlet 102 of the collection device are connected.

[0046] It should be noted that, since the collection device can prevent air leakage at the connection between the atomizing component and the first interface 20, it helps to ensure the sealing of the connection between the atomizing device 100 and the first interface 20. Therefore, when the test device includes the atomizing device 100, the inhalation device 200 and the collection device described in any of the above embodiments, and the air inlet 101 of the atomizing device 100 and the collection device are connected, and the air outlet 102 of the inhalation device 200 and the collection device are connected, the test accuracy of the test device can be improved.

[0047] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0048] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A collection device for collecting aerosols emitted from an atomizing device, characterized in that, The trapping device includes: A clamping assembly includes a clamping cavity in which a filter is installed. The clamping assembly includes an air inlet and an air outlet disposed opposite to each other, and both the air inlet and the air outlet are in communication with the clamping cavity. A first interface and a first connecting tube, wherein the first interface is disposed at the air inlet, the first end of the first connecting tube is connected to the air inlet through the first interface, and the second end of the first connecting tube is configured to connect to the air outlet of the atomizing device, wherein the portion where the first interface and the first end of the first connecting tube are connected is in the shape of a pagoda interface.

2. The collection device according to claim 1, characterized in that, The air intake and the first interface are an integral fixed structure.

3. The collection device according to claim 1, characterized in that, The air intake and the first interface are detachable and separate structures. The air intake is an air intake pipe connected to the clamping assembly. The air intake pipe is configured to be detachably connected to the first interface with different outer peripheral sizes. One end of the air intake pipe is connected to the clamping cavity, and the other end of the air intake pipe is interference-fitted with the first interface.

4. The collection device according to claim 3, characterized in that, The diameter of the end of the air intake pipe connected to the first interface is adjustable to accommodate the first interface of different sizes. The end of the air intake pipe connected to the first interface includes a multi-layer pipe structure, and each two adjacent layers of the pipe structure are detachably connected.

5. The collection device according to claim 1, characterized in that, The trapping device also includes a second interface and a second connecting pipe; The second interface is located at the air outlet. The first end of the second connecting tube is connected to the air outlet through the second interface. The second end of the second connecting tube is configured to connect to the air intake device. The portion where the second interface and the first end of the second connecting tube are connected is in the shape of a pagoda interface.

6. The collection device according to claim 5, characterized in that, The air outlet and the second interface are an integral fixed structure; Alternatively, the air outlet and the second interface may be detachable separate structures.

7. The collection device according to any one of claims 1 to 6, characterized in that, Both the air inlet and the air outlet are gas pipes, and the length of the air inlet is shorter than the length of the air outlet.

8. The collection device according to claim 1, characterized in that, The clamping assembly includes a first housing and a second housing; The first box and the second box are detachably connected to form the clamping cavity. The air inlet is located on the side of the first box away from the second box, and the air outlet is located on the side of the second box away from the first box.

9. The collection device according to claim 8, characterized in that, The first box body has an internal thread on its inner wall facing the second box body, and the second box body has an external thread on its outer wall facing the first box body. The first box and the second box are detachably connected by a threaded connection between internal and external threads.

10. A testing apparatus, characterized in that, Includes an atomizing device, an air intake device, and a collection device as described in any one of claims 1 to 9; The air inlet of the atomizing device and the air outlet of the collecting device are connected, and the air intake device and the air outlet of the collecting device are connected.

Images