Packaging assembly

Abstract

The utility model relates to the technical field of product packaging, in particular to a packaging assembly which comprises a first container, a second container and a butt joint sleeve, solids are stored in the first container, the first container is provided with a first opening, a sealing plug is arranged at the first opening, solvent liquid is stored in the second container, and the second container is provided with a second opening. A liquid outlet head is arranged at the second opening, a second external thread is arranged on the outer wall of the second opening, the first end of the butt joint sleeve is connected with the opening end of the first container, the second end of the butt joint sleeve is connected with the external thread of the second container, and when the second container is screwed into the butt joint sleeve in a threaded mode, the liquid outlet head jacks the sealing plug, and solvent liquid in the second container can enter the first container. The solvent liquid can be fully dissolved and mixed with the solid, and the mixed liquid can enter the second container. Therefore, the solvent liquid and the solid are subpackaged by the two packaging containers, the two packaging containers are butted for mixing during use, the use is convenient, preservatives do not need to be added, and no side effect is caused to a human body.

Description

Technical Field

[0001] The utility model relates to the technical field of product packaging, and particularly relates to a packaging assembly. Background Art

[0002] In the field of beauty products, it is necessary to package efficacy essence through a packaging bottle. The existing packaging generally directly mixes the efficacy components and the solvent solution, and then fills them into a packaging bottle. During storage, since the efficacy components exist in the solvent solution for a long time, the efficacy components are easily oxidized and lose their effectiveness, and it is easy to breed microorganisms and bacteria. Therefore, it is usually necessary to add some preservatives, antioxidants, etc., and these additives will bring certain side effects to the human body. Content of the Utility Model

[0003] In order to solve the technical problem that the existing packaging method directly mixes the efficacy components and the solvent solution for packaging, resulting in the need to add additives with side effects to the human body, the utility model provides a packaging assembly. The solvent solution and the solid with efficacy components are separately packed in two packaging containers, and when in use, the two packaging containers are docked, so that the solvent solution and the solid with efficacy components are mixed, and then taken for use. There is no need to add a large amount of preservatives, and there is no side effect on the human body.

[0004] The technical solution of the utility model is as follows:

[0005] A packaging assembly includes:

[0006] A first container, in which a soluble solid is stored. The first container is provided with a first opening, and a sealing plug is arranged at the first opening;

[0007] A second container, in which a solvent solution is stored. The second container is provided with a second opening, and a liquid outlet head is arranged at the second opening. The outer wall of the second opening is provided with a second external thread, and a screw cap for closing the liquid outlet head in cooperation with the second external thread is also arranged at the second opening;

[0008] A docking sleeve, the first end of the docking sleeve is connected to the opening end of the first container, and the second end of the docking sleeve is threadedly connected to the second external thread of the second container after removing the screw cap. When the second container is screwed towards the docking sleeve, the liquid outlet head pierces the sealing plug, and the solvent solution in the second container can enter the first container. The solvent solution can be fully dissolved and mixed with the solid, and the mixed liquid can enter the second container.

[0009] Furthermore, a spiral-shaped insert is arranged inside the liquid outlet head, and the insert is inserted into the second container to a certain depth; an antibacterial coating is arranged on the contact outer surface of the insert, or the insert is made of antibacterial plastic material.

[0010] Furthermore, an antibacterial coating is provided on the contact inner wall of the accommodating portion of the second container, or the accommodating portion of the second container is made of antibacterial plastic material.

[0011] Furthermore, a thinning sheet is formed in the middle of the sealing plug, and a plurality of thinning lines are provided on the outer surface of the thinning sheet and are distributed in a circumferential array. When the liquid outlet head is inserted, it pierces through by aligning with the center of the plurality of thinning lines.

[0012] Furthermore, an external first thread is provided on the outer wall of the first opening of the first container, and the first end of the docking sleeve is threadedly connected with the first external thread. The screwing direction of the docking sleeve connected to the first container is the same as the screwing-in direction of the second container connected to the docking sleeve.

[0013] Furthermore, a columnar cavity is formed inside the thinning sheet, and a sealing protrusion cooperating with the liquid outlet head is formed on the side wall of the columnar cavity; when the second container is screwed tightly onto the docking sleeve, the top of the liquid outlet head does not protrude beyond the inner end of the columnar cavity.

[0014] Furthermore, an arc-shaped diversion cavity is formed inside the columnar cavity. The small-diameter end of the arc-shaped diversion cavity communicates with the columnar cavity, and the large-diameter end of the arc-shaped diversion cavity communicates with the inside of the first container.

[0015] Furthermore, the liquid outlet head includes a first liquid outlet member and a second liquid outlet member. The outer end of the first liquid outlet member is formed as a protruding insertion portion, a diversion channel is formed in the insertion portion, a frustum-shaped channel communicating with the diversion channel is formed at the inner end of the first liquid outlet member, the outer end of the second liquid outlet member fits with the first liquid outlet member, the inner end of the second liquid outlet member is hermetically placed in the second opening, a plurality of circumferentially arrayed diversion holes are formed in the middle of the second liquid outlet member, and each diversion hole communicates with the frustum-shaped channel. The cross-sectional area of a single diversion hole is smaller than the cross-sectional area of the diversion channel.

[0016] Furthermore, the second container is made of plastic material, and its accommodating portion can be squeezed to form elastic deformation.

[0017] Furthermore, the accommodating portion of the second container is formed as a corrugated body that can be axially compressed. An outer shell is further sleeved outside the accommodating body. The outer shell is separated by a middle partition to form a first chamber and a second chamber. The corrugated body is accommodated in the first chamber, a pressing plate and a compression spring are provided in the second chamber, the compression spring is arranged between the partition and the pressing plate, a guide rod is further connected to the middle of the pressing plate, the guide rod passes through a guide hole in the middle of the partition to the first chamber and is connected with a limiting block, and the limiting block is fixedly connected to the bottom of the corrugated body and is limited to move in the first chamber by the partition.

[0018] After adopting the above technical solution, a packaging component provided by the present utility model has the following beneficial effects compared with the prior art: The present utility model uses two different containers to store the solid with efficacy components and the solvent solution respectively, which can prevent the efficacy components in the solid from losing efficacy during long-term storage, and there is no need to add preservatives, reducing the side effects on the human body; and when in use, the two containers are docked and mixed for use, and the operation and use are also very convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of the first container of the present utility model;

[0020] Figure 2 It is a schematic cross-sectional view of the first container of the present utility model;

[0021] Figure 3 It is a schematic structural diagram of the second container (including the screw cap) of the present utility model;

[0022] Figure 4 It is a schematic structural diagram of the second container (excluding the screw cap) of the present utility model;

[0023] Figure 5 It is a schematic cross-sectional view of the second container of the present utility model;

[0024] Figure 6 It is a schematic structural diagram of the liquid outlet head of the present utility model;

[0025] Figure 7 It is a schematic structural diagram of the docking sleeve of the present utility model;

[0026] Figure 8 It is a schematic structural diagram of the first container, the docking sleeve and the second container after being docked and assembled of the present utility model;

[0027] Figure 9 It is a schematic cross-sectional view of the first container, the docking sleeve and the second container after being docked and assembled of the present utility model.

[0028] Wherein,

[0029] The first container 1, the first opening 11, the first external thread 12, the sealing plug 13, the thinning sheet 131, the thinning line 1311, the columnar cavity 132, the sealing protrusion 1321, the arc-shaped diversion cavity 133; the second container 2, the second opening 21, the second external thread 22, the accommodating part 23, the flange 24, the liquid outlet head 25, the first liquid outlet part 251, the insertion part 2511, the diversion channel 2512, the frustum-shaped channel 2513, the second liquid outlet part 252, the diversion hole 2521, the insert 253, the screw cap 26, the outer shell 27, the partition plate 271, the guiding hole 2711, the pressing plate 272, the compression spring 273, the guiding rod 274, the limiting block 275; the docking sleeve 3. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way restrictive of the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] It should be noted that the terms used herein are only for describing specific implementation manners and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0032] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by orientation words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus cannot be understood as limiting the protection scope of the present invention; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0033] In addition, it should be noted that using words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Without otherwise stating, the above words have no special meanings, and thus cannot be understood as limiting the protection scope of the present invention.

[0034] As Figures 1-9 shown, this embodiment provides a packaging component that can be separately packaged and used in combination. The packaging component includes a first container 1, a second container 2, and a docking sleeve 3. Among them, as Figures 1-2 shown, a soluble solid is stored in the first container 1. The solid is formed by drying, freeze-drying, etc., and contains beauty effect components or medical effect components. Its shape can be selected but is not limited to spherical, pill-shaped, or powder-shaped, etc. The dry solid can be stored for a longer time. A first opening 11 is also provided on the first container 1, and a sealing plug 13 made of rubber material is used to seal the first opening 11.

[0035] Among them, as Figures 3-6 shown, a solvent solution is stored in the second container 2. The solvent solution is a solution that can dissolve the solid correspondingly. A second opening 21 is provided on the second container 2, and a liquid outlet head 25 is provided at the second opening 21, and the liquid can flow in and out through the liquid outlet head 25. An external second thread 22 is further provided on the outer wall of the second opening 21, and a screw cap 26 is also provided at the second opening 21. An internal thread that matches the external second thread 22 is provided inside the screw cap 26 so that the screw cap 26 can be screwed tightly onto the second container 2 to seal the liquid outlet head 25. For better sealing, a soft plug that cooperates with the liquid outlet head 25 to press tightly can also be provided at the inner top end of the screw cap 26.

[0036] Among them, as Figure 7 shown, the first end of the docking sleeve 3 is connected to the opening end of the first container 1. Specifically, it can be selected but is not limited to snap connection, threaded connection, etc. A second internal thread (not shown in the figure) is provided at the second end of the docking sleeve 3, and the second internal thread cooperates with the external second thread 22 of the second container 2 so that the docking sleeve 3 can be threadedly connected to the second container 2 after the screw cap 26 is removed. When the second container 2 is screwed into the docking sleeve 3, the liquid outlet head 25 can pierce the sealing plug 13 so that the first container 1 and the second container 2 are connected.

[0037] The material of the first container 1 can be selected but is not limited to glass or plastic material; the material of the second container 2 is preferably plastic material. When mixing, the second container 2 is inverted above the first container 1, as Figures 8-9, so that the solvent solution in the second container 2 can flow into the first container 1. The introduction of the solvent solution can also be accelerated by squeezing. Specifically, squeeze the accommodating portion 23 of the second container 2 for accommodating liquid, so that the accommodating portion 23 deforms under force, its internal space is compressed, and the internal solvent solution can be squeezed into the first container 1 to fully dissolve the solid and fully mix; after mixing is completed, turn the whole over, invert the first container 1 above the second container 2, so that the mixed liquid can flow into the second container 2. The introduction of the liquid can also be accelerated by squeezing, that is, squeeze and release the accommodating portion 23, and suck the liquid into the second container 2 by the suction force generated when the accommodating portion 23 returns to its original shape. At this time, the liquid after mixing in the second container 2 can be squeezed out for use.

[0038] In this way, in this embodiment, two different containers are used to store the solid and the solvent solution respectively, which can prevent the active ingredients in the solid from becoming ineffective during long-term storage, and there is no need to add preservatives, reducing the side effects on the human body; and when in use, the two containers are docked and mixed for use, and the operation and use are very convenient.

[0039] The mixed liquid stored in the second container 2 can be used once or multiple times. If it is used multiple times, the liquid in the second container 2 will be stored for a long time and there is also a possibility of being contaminated. In this regard, optionally, in this embodiment, a spiral-shaped insert 253 is provided inside the liquid outlet head 25, and the insert 253 is inserted into the second container 2 to a certain depth to increase its contact area with the liquid as much as possible. An antibacterial coating is provided on the contact outer surface of the insert 253. The antibacterial coating can be, but is not limited to, a silver ion coating. The silver ion coating is an antibacterial coating that embeds silver ions in the coating using nanoparticles and is widely used in fields such as medical treatment and food processing. The specific manufacturing method is the prior art and will not be elaborated here. By providing the antibacterial coating, the insert 253 has excellent antibacterial and bactericidal effects. Moreover, setting the insert 253 in a threaded shape can increase the antibacterial surface area and improve the antibacterial effect, thereby increasing the storage time of the liquid in the second container 2 without adding preservatives and reducing the side effects on the human body. Or in other embodiments, the entire insert 253 can also be made of antibacterial plastic material, that is, adding ionic silver to the plastic masterbatch to make the container itself have antibacterial ability, which is also the prior art. For example, as disclosed in the patent with the publication number CN116875076A and the name "A Plastic with Antibacterial Function and Its Preparation Method", or as disclosed in the patent with the publication number CN117777630A and the name "An Antibacterial Medical Grade Non-Toxic Polymer Plastic and Its Preparation Method", which will not be detailed here. Or, optionally, an antibacterial coating can also be provided on the contact inner wall of the accommodating part 23 of the second container 2 for storing the liquid and in contact with the liquid, or the entire accommodating part 23 of the second container 2 can be made of antibacterial plastic material.

[0040] As Figure 2 shown, in order to make the liquid outlet head 25 more easily pierce the sealing plug 13, a thinning sheet 131 is formed in the middle of the sealing plug 13, that is, the thickness of the thinning sheet 131 is less than the thickness of the entire sealing plug 13, so that the thinning sheet 131 can be relatively easily pierced; further, in this embodiment, a plurality of thinning lines 1311 distributed in a circumferential array are also provided on the outer surface of the thinning sheet 131, and when the liquid outlet head 25 is inserted, it is aligned with the center of the plurality of thinning lines 1311 for piercing. On the one hand, it can more easily pierce the sealing plug 13. On the other hand, when piercing, the plurality of arc-shaped pieces formed when the respective thinning lines 1311 are pushed open can fit on the side wall of the liquid outlet head 25 to prevent the outflow of the liquid.

[0041] Preferably, in this embodiment, a first external thread 12 is provided on the outer wall of the first opening 11 of the first container 1, and a first internal thread (not shown in the figure) is provided at the first end of the docking sleeve 3, which is threadedly connected with the first external thread 12. The screwing direction of the docking sleeve 3 connected to the first container 1 is the same as the screwing-in direction of the second container 2 connected to the docking sleeve 3 to ensure the reliable screwing-in of the second container 2. The first container 1 and the docking sleeve 3 are threadedly connected, enabling the docking sleeve 3 to be used multiple times, reducing costs. Moreover, compared with the snap connection method, it can ensure the coaxiality of the docking sleeve 3 and the first container 1, thereby ensuring the coaxiality of the first container 1 and the second container 2, so that the liquid outlet head 25 can be aligned with the middle of the sealing plug 13 and pushed in.

[0042] Further, a columnar cavity 132 is formed inside the thinning sheet 131, and a sealing protrusion 1321 that cooperates with the liquid outlet head 25 is formed on the side wall of the columnar cavity 132 to improve the sealing performance during docking. Further, an arc-shaped diversion cavity 133 is formed inside the columnar cavity 132. The arc-shaped diversion cavity 133 includes a small-diameter end and a large-diameter end, and there is an arc-shaped transition between the small-diameter end and the large-diameter end. The small-diameter end communicates with the columnar cavity 132, and the large-diameter end communicates with the inside of the first container 1. In this way, the liquid mixed in the first container 1 can better enter the second container 2 through the liquid outlet head 25. Further, in this embodiment, by reasonably setting the sizes of the docking sleeve 3, the second container 2, and the liquid outlet head 25, when the second container 2 is screwed tightly onto the docking sleeve 3, the top of the liquid outlet head 25 does not protrude from the inner end of the columnar cavity 132, so that the liquid mixed in the first container 1 can all enter the second container 2 through the liquid outlet head 25, reducing residue.

[0043] As Figures 5-6, the liquid outlet head 25 of this embodiment includes a first liquid outlet member 251 and a second liquid outlet member 252. Among them, the outer end of the first liquid outlet member 251 is formed as a protruding insertion portion 2511, and a diversion channel 2512 is formed in the insertion portion 2511. The inner end of the first liquid outlet member 251 is formed with a frustum-shaped channel 2513 communicating with the diversion channel 2512. The narrow end of the frustum-shaped channel 2513 is close to and communicates with the diversion channel 2512; the outer end of the second liquid outlet member 252 is attached to the edge of the first liquid outlet member 251 by means of hot pressing, welding, etc. The inner end of the second liquid outlet member 252 is hermetically placed in the second opening 21. A plurality of small-diameter diversion holes 2521 arranged in a circumferential array are formed in the middle of the second liquid outlet member 252, and each diversion hole 2521 communicates with the wide end of the frustum-shaped channel 2513. The cross-sectional area of a single diversion hole 2521 is smaller than the cross-sectional area of the diversion channel 2512, but the sum of the cross-sectional areas of a plurality of diversion holes 2521 is greater than or equal to the cross-sectional area of the diversion channel 2512. Such a setting does not affect the inflow and outflow of the liquid during mixing, and can play a certain filtering role after mixing, reducing the entry or inhalation of dust and impurities, and reducing the pollution of the liquid after mixing.

[0044] In the foregoing embodiment, the second container 2 is made of plastic, and its accommodating portion 23 can be its bottle body, that is, the accommodating portion 23 can be a traditional square-column bottle or a cylindrical bottle, and can be extruded to form an elastic deformation; however, it still needs to be extruded multiple times during use to better assist the flow of the liquid.

[0045] As another preferred embodiment, the accommodating portion 23 of the second container 2 is provided as a corrugated body that can be axially compressed, which is more convenient to use compared to traditional square-column bottles or cylindrical bottles. Specifically, an outer casing 27 is sleeved outside the accommodating portion 23. Both ends of the outer casing 27 are open. Its first end is fixedly attached to the flange 24 at the neck of the second container 2. A partition 271 is provided in the middle of the outer casing 27, which divides it into a first chamber and a second chamber. The corrugated body is placed in the first chamber. A pressing plate 272 and a compression spring 273 are provided in the second chamber. The pressing plate 272 is arranged close to and does not protrude from the second end of the outer casing 27. The compression spring 273 is arranged between the partition 271 and the pressing plate 272. A guide rod 274 is also threadedly connected to the middle of the pressing plate 272. Grooves can be provided on the pressing plate 272 to assist in threaded connection. The guide rod 274 passes through the guide hole 2711 in the middle of the partition 271 to the first chamber and is integrally connected with a limiting block 275. The limiting block 275 is fixedly attached to the bottom of the corrugated body by hot pressing or welding, etc., and the limiting block 275 is limited by the partition 271 and can only move in the first chamber. Thus, during mixing, the corrugated body is compressed by pressing the pressing plate 272. Since the volume of the corrugated body can be quickly and fully compressed, the liquid, especially the viscous liquid, can be squeezed into the first container 1 more quickly. After mixing is completed, by pressing the pressing plate 272, the corrugated body can quickly absorb the mixed liquid in the first container 1 after being compressed and released. In this way, the flow and dissolution of the liquid are accelerated, and the operation frequency and time are reduced. During subsequent laying and use, the liquid is also extruded by pressing the pressing plate 272. Since the corrugated body is compressed, when a spiral insert 253 is provided in the corrugated body, the insert 253 also needs to be made of a flexible material that can be compressed.

[0046] As can be seen from the above, a packaging assembly provided in this embodiment divides the solvent liquid and the solid with active ingredients into two packaging containers. During use, the two packaging containers are docked so that the solvent liquid and the solid with active ingredients are mixed and then taken for use. It is convenient to use, and there is no need to add a large amount of preservatives, and it has no side effects on the human body.

[0047] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A packaging component, characterized in that: include: A first container (1), wherein a soluble solid is stored in the first container (1), the first container (1) is provided with a first opening (11), and a sealing plug (13) is provided at the first opening (11); A second container (2), wherein a solvent liquid is stored in the second container (2), the second container (2) is provided with a second opening (21), a liquid outlet head (25) is provided at the second opening (21), a second external thread (22) is provided on the outer wall of the second opening (21), and a screw cap (26) is also provided at the second opening (21) for cooperating with the second external thread (22) and for closing the liquid outlet head (25); A docking sleeve (3), wherein a first end of the docking sleeve (3) is connected to an open end of the first container (1), and a second end of the docking sleeve (3) is threadedly connected to a second external thread (22) of the second container (2) after the screw cap (26) is removed. When the second container (2) is threadedly screwed into the docking sleeve (3), the liquid outlet head (25) breaks through the sealing plug (13), and the solvent liquid in the second container (2) can enter the first container (1), and the solvent liquid can be fully dissolved and mixed with the solid, and the mixed liquid can enter the second container (2).

2. The packaging assembly according to claim 1, characterized in that: A spiral insert (253) is provided on the inner side of the liquid outlet head (25), and the insert (253) is inserted into the second container (2) to a certain depth; the contact outer surface of the insert (253) is provided with an antibacterial coating, or the insert (253) is made of antibacterial plastic material.

3. The packaging assembly according to claim 1, characterized in that: The contact inner wall of the accommodating portion (23) of the second container (2) is provided with an antibacterial coating, or the accommodating portion (23) of the second container (2) is made of an antibacterial plastic material.

4. The packaging assembly according to claim 1, characterized in that: A thinning sheet (131) is formed in the middle of the sealing plug (13), and a plurality of thinning lines (1311) distributed in a circular array are provided on the outer surface of the thinning sheet (131). When the liquid outlet head (25) is inserted, it is aligned with the center of the plurality of thinning lines (1311) and is broken.

5. The packaging assembly according to claim 4, characterized in that: The outer wall of the first opening (11) of the first container (1) is provided with a first external thread (12), and the first end of the docking sleeve (3) cooperates with the first external thread (12) for threaded connection, and the tightening direction of the docking sleeve (3) connected to the first container (1) is the same as the screwing direction of the second container (2) connected to the docking sleeve (3).

6. The packaging assembly according to claim 4, characterized in that: A columnar cavity (132) is formed on the inner side of the thinning sheet (131), and a sealing protrusion (1321) that matches the liquid outlet head (25) is formed on the side wall of the columnar cavity (132); when the second container (2) is screwed onto the docking sleeve (3), the top of the liquid outlet head (25) does not protrude from the inner end of the columnar cavity (132).

7. The packaging assembly according to claim 6, characterized in that: An arc-shaped flow guiding cavity (133) is formed on the inner side of the columnar cavity (132); the small-diameter end of the arc-shaped flow guiding cavity (133) is connected to the columnar cavity (132), and the large-diameter end of the arc-shaped flow guiding cavity (133) is connected to the interior of the first container (1).

8. The packaging assembly according to claim 1, characterized in that: The liquid outlet head (25) comprises a first liquid outlet member (251) and a second liquid outlet member (252); the outer end of the first liquid outlet member (251) is formed as a protruding insertion portion (2511), a guide channel (2512) is formed in the insertion portion (2511); the inner end of the first liquid outlet member (251) is formed with a truncated cone-shaped channel (2513) connected to the guide channel (2512); the outer end of the second liquid outlet member (252) is in contact with the first liquid outlet member (251), the inner end of the second liquid outlet member (252) is sealed and placed in the second opening (21); a plurality of circles of guide holes (2521) in a circumferential array are formed in the middle of the second liquid outlet member (252); each guide hole (2521) is connected to the truncated cone-shaped channel (2513), and the cross-sectional area of ​​a single guide hole (2521) is smaller than the cross-sectional area of ​​the guide channel (2512).

9. The packaging assembly according to claim 1, characterized in that: The second container (2) is made of plastic material, and its accommodating portion (23) can be squeezed to form elastic deformation.

10. The packaging assembly according to claim 1, characterized in that: The accommodating portion (23) of the second container (2) is formed as a corrugated body capable of being axially compressed. An outer shell (27) is also sleeved on the outside of the accommodating portion (23). The outer shell (27) is divided into a first chamber and a second chamber by a partition (271) in the middle. The first chamber accommodates the corrugated body. A pressure plate (272) and a compression spring (273) are provided in the second chamber. The compression spring (273) is arranged between the partition (271) and the pressure plate (272). A guide rod (274) is also connected to the middle of the pressure plate (272). The guide rod (274) passes through the guide hole (2711) in the middle of the partition (271) to the first chamber and is connected to a limit block (275). The limit block (275) is fixedly connected to the bottom of the corrugated body and is limited by the partition (271) to move in the first chamber.

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