Separate storage packaging containers

Abstract

This invention relates to a packaging container for separate storage, comprising a first container having a first receiving cavity, the opening of which is provided with a sealing film; a second container having a second receiving cavity; a connecting sleeve fixed to the opening end of the second container, the connecting sleeve having an interface portion and a connecting channel; characterized in that it further includes a puncture portion fixed to the connecting sleeve and located within the interface portion; a piston movably disposed within the connecting channel; the interface portion is operably fitted onto the first container, and the first container moves toward the puncture portion and the piston, causing the sealing film to be punctured by the puncture portion, and the first container also pushes the piston away from the first container to open the connecting channel, realizing the connection between the first and second receiving cavities. The puncture portion and the piston are independently set, ensuring that the sealing film is punctured before opening during use, which can better and more conveniently achieve the mixing of two materials.

Description

Technical Field

[0001] This invention belongs to the field of packaging technology, and in particular relates to a packaging container for compartmentalized storage. This packaging container is suitable for storing various substances, such as medicines, cosmetics, and chemical preparations, and is especially suitable for storing cosmetics, which can be skin care substances such as liquids, solids, and powders. Background Technology

[0002] In the field of packaging technology, it is often necessary to mix two materials. However, sometimes the mixture is unstable, so when not in use, the two materials need to be stored separately in sealed containers; they are only mixed when needed to achieve the purpose of preparing and using immediately. Materials can include pharmaceuticals, chemicals, skincare products, or cosmetics. Traditionally, when mixing two separately packaged materials, users have to open the seals of both bottles separately and pour the material from one bottle into the other for mixing. This mixing process is cumbersome and increases the burden on users. With the development of skincare technology, some solid skincare products (such as freeze-dried powder) require sealed storage. They cannot come into contact with air before being mixed with other substances, otherwise they will lose their effectiveness. When using them, they are mixed with other liquid skincare products, and it is crucial to ensure that the freeze-dried powder does not come into contact with air during the mixing process. This point is particularly important.

[0003] To address this, a Chinese utility model patent with patent number ZL202222319060.2 (publication number CN218537457U), entitled "A Packaging Container and a Mixing Packaging Bottle Adapted to the Packaging Container," discloses a packaging container structure specifically designed for this type of skincare product. The structure includes a receiving portion, a connector, and a push rod. The receiving portion has a first receiving cavity for receiving a first medium, and the opening of the first receiving cavity is provided with a puncturable sealing barrier. The push rod is movably disposed at the end of the connector for puncturing the sealing barrier. The connector is operably fitted onto the receiving portion and pushed towards the receiving portion, causing the sealing barrier to be punctured by the push rod. The receiving portion then drives the push rod to move away from the receiving portion, thus opening the first receiving cavity. By providing a packaging container and an extrusion portion within the packaging container, forming two closed receiving cavities, the user only needs to push the receiving portion towards the push rod to move the push rod, thus opening the first and second receiving cavities and achieving mixing of the two materials, improving the convenience of material mixing.

[0004] However, the aforementioned patent has the following drawbacks:

[0005] 1. The push rod serves both as a piercing and inner plug function, so the material used for the push rod is relatively soft, resulting in a low hardness of the piercing part on the push rod, making it difficult to pierce the sealing film; the piercing edge is located on one side, so when the sealing film is pierced, there is only one piercing opening, making it difficult for the liquid medium inside the packaging container with the push rod to flow out.

[0006] 2. Because the push rod serves both as a piercing and inner plug function, during the process of screwing the receiving part into the packaging container, it is possible that the push rod is pushed open first, and then the sealing film is pierced. Some users may invert the packaging container during operation (i.e., the opening end of the packaging container is facing down). In this case, the contents of the packaging container will flow out first, but the sealing film will not be pierced. The outflowing medium cannot immediately enter the first receiving cavity to mix with the contents inside, but instead flows out of the receiving part, resulting in waste.

[0007] 3. The main body of the container is made of glass, which makes it inconvenient to directly install a sealing film. Therefore, a port bracket is threaded onto the extension of the main body. A sealing ring is provided at the opening of the port bracket and the container. A sealing film is provided at the end of the port bracket. When in use, the container contains solid or powdered substances, which require a high degree of vacuum. Therefore, it needs to be well sealed before mixing with the solution in the packaging container (to prevent the substances in the container from contacting air). However, consumers may accidentally open the port bracket during use, causing the substances inside to become ineffective.

[0008] In conclusion, the packaging containers disclosed in the aforementioned patent documents can be further improved. Summary of the Invention

[0009] The technical problem to be solved by the present invention is to provide a structurally improved compartmentalized packaging container for storage, which ensures that the container is punctured before opening, thereby enabling better and more convenient mixing of two materials.

[0010] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: a packaging container for separate storage, including a first container having a first receiving cavity, and a puncturable sealing film provided at the opening of the first container;

[0011] A second container having a second receiving cavity;

[0012] A docking sleeve is fixed to the opening end of the second container. The docking sleeve has an interface portion for connecting to the first container and a connecting channel for connecting the interface portion and the second receiving cavity.

[0013] Its characteristic is that it also includes:

[0014] The piercing part is fixed on the mating sleeve and located inside the interface.

[0015] A piston is movably disposed within the connecting channel to block or open the connecting channel;

[0016] The interface is operably fitted onto the first container, which moves toward the puncture part and the piston, causing the sealing film to be punctured by the puncture part. The first container also pushes the piston to move away from the first container to open the connecting channel, thereby enabling the first and second receiving cavities to communicate.

[0017] Preferably, the first container has a base and an extension. A port bracket is fitted onto the extension, and a sealing membrane is located at the opening of the port bracket. A first sealing ring is provided at the connection between the port bracket and the opening of the first container. The first container can be made of glass, while the port bracket can be made of plastic, facilitating the placement of the sealing membrane at the opening of the port bracket. The outer peripheral wall of the extension has a first external thread, and the inner peripheral wall of the port bracket has a first internal thread that matches the first external thread. The threaded connection facilitates the connection of the port bracket to the extension of the first container, and the threaded connection provides a greater locking force, ensuring that the first sealing ring is effectively pressed against the connection between the port bracket and the opening of the first container, resulting in a good sealing effect. The outer peripheral wall of the port bracket has a second external thread, and the inner peripheral wall of the interface portion has a second internal thread that matches the second external thread. Similarly, the threaded connection facilitates a secure connection of the port bracket to the interface portion of the mating sleeve.

[0018] In a further improvement, the upper part of the inner peripheral wall of the aforementioned port bracket is provided with a retaining elastic foot that has an elastic tendency toward the central axis of the port bracket, and the outer peripheral wall of the extension is provided with a protruding retaining rib. When the port bracket is screwed onto the extension, the retaining elastic foot presses against the upper part of the retaining rib, and the end face of the extension presses against the first sealing ring.

[0019] The anti-reverse elastic foot abuts against the retaining rib to prevent the port bracket from retracting. After the port bracket is tightened in the extension, the user cannot open the opening of the first container even if the port bracket is reversed, ensuring that the medium inside the first container is always isolated by the sealing film. This prevents consumers from accidentally opening the port bracket, which would cause the medium inside to come into contact with air and fail. The retaining rib can be an arc-shaped rib independent of the first external thread. The arc-shaped rib can be ring-shaped, or arc-shaped rib segments spaced along the circumference, or the innermost ring of the first external thread.

[0020] Further improvements include an annular inner shoulder on the upper part of the inner wall of the interface section, with multiple first anti-rotation blocks spaced circumferentially on the top surface of the annular inner shoulder. The surface of the first anti-rotation block corresponding to the direction in which the port bracket screws into the interface section is a first inclined surface, and the surface of the first anti-rotation block corresponding to the direction in which the port bracket screws out of the interface section is a first anti-reverse plane. An annular shoulder is provided at the upper end of the port bracket, with multiple second anti-rotation blocks spaced circumferentially on the bottom surface of the annular shoulder. The surface of the second anti-rotation block corresponding to the direction in which the port bracket screws into the interface section is a second inclined surface, and the surface of the second anti-rotation block corresponding to the direction in which the port bracket screws out of the interface section is a second anti-reverse plane. When the port bracket is screwed tightly into the interface section, the first and second anti-rotation blocks are arranged alternately.

[0021] The port bracket rotates in the opposite direction, with the first and second anti-reverse planes abutting against each other to prevent it from rotating in reverse. In other words, the first and second anti-reverse blocks prevent the port bracket from rotating in the opposite direction (reverse rotation would cause the port bracket to detach from the interface). This means that when the port bracket is screwed into the interface, it cannot detach from the interface and will always remain in the screwed position, preventing the user from accidentally detaching the first container from the docking sleeve along with the port bracket, which would cause the mixture to flow out.

[0022] Furthermore, a second sealing ring is provided on the bottom surface of the aforementioned interface portion. This second sealing ring is located below the second internal thread. When the sealing film on the port bracket is punctured by the puncture part, the port bracket abuts against the second sealing ring. When the sealing film on the port bracket is punctured, the second sealing ring forms a seal between itself and the port bracket and the interface portion. This seal, located below the second internal thread, better prevents the solution flowing from the second receiving cavity from leaking between the first internal thread and the second external thread, ensuring that all the solution flowing from the second receiving cavity flows into the first receiving cavity.

[0023] Further improvements include the integral molding of the aforementioned puncture portion and the docking sleeve, which facilitates manufacturing. Of course, theoretically, the puncture portion could also be fixed using other methods. Two puncture portions are located within the upper port wall of the connecting channel and extend upwards into the interface portion. These two puncture portions allow the sealing membrane to be punctured at the initial stage, creating two inlets. These two inlets facilitate convection, allowing the solution to flow into the first receiving cavity.

[0024] As a preferred structure for the piston, the piston includes an integrally formed sealing portion and a push rod portion. There are at least two push rod portions. The sealing portion is located at the lower end of the push rod portion. When the push rod portion is not triggered by the first container, the sealing portion tightly fits with the lower port of the connecting channel to seal the second receiving cavity. The upper end of the push rod portion extends into the interface portion. During movement, the first container abuts against the push rod portion, causing the sealing portion to move away from the first container. This piston consists of two main parts: the sealing portion and the push rod portion. Each part has its own function. The sealing portion seals the connecting channel, while the push rod portion transmits the thrust from the first container to the sealing portion. When the piston as a whole is pushed by the first container, the movement is more stable. If the pushing is uneven, the sealing portion will tilt under pressure, resulting in high resistance and making it difficult to push the sealing portion downwards.

[0025] As an improvement, each push rod is connected to it by a connecting ring integrally formed therewith. When the push rod is not triggered by the first container, the connecting ring and the inner wall of the upper port of the connecting channel are in a beveled fit. The connecting ring connects the push rods together, increasing their strength and preventing them from bending or deforming under stress. Simultaneously, the beveled fit between the connecting ring and the inner wall of the upper port of the connecting channel better ensures that the sealing part is in a better sealing position under normal conditions.

[0026] In a further improvement, the upper inner wall of the second receiving cavity is formed with a blocking rib. When the sealing part moves down to open the connecting channel, the blocking rib blocks the sealing part. The blocking rib prevents the piston from falling entirely into the lower part of the second receiving cavity.

[0027] Furthermore, with the sealing part tightly fitted to the lower end of the connecting channel, the top of the puncture part is higher than the top of the push rod part. This ensures that as the first container moves towards the puncture part and the piston, the sealing film is punctured first, and then the piston is pushed away from the first container to open the connecting channel. This better ensures that the medium in the second container does not overflow from the joint between the first container and the mating sleeve to the outside of the first container.

[0028] Preferably, the second container is made of an elastic material that can be squeezed. The second container has an extrusion port with a soft stopper for sealing. The lower end of the connecting sleeve is inserted into and secured to the opening of the second container. The second container can be squeezed, similar to an elastic dropper. When in use, simply open the soft stopper and squeeze the second container to drip out the mixed solution in the second receiving cavity for use. Users can measure the amount of the basic mixed solution according to their own needs.

[0029] Furthermore, it also includes a decorative sleeve and a protective sleeve. The decorative sleeve has stepped perforations, and the upper end of the second container is also stepped. The upper end of the second container is placed in the stepped perforations of the decorative sleeve and glued in place. The lower end of the decorative sleeve has a connecting part, and the protective sleeve is snapped onto the connecting part in a pluggable manner, exposing the lower part of the decorative sleeve, which is then placed inside the protective sleeve. The decorative sleeve covers the upper part of the second container. The decorative sleeve can be made of other materials to increase strength and protect the head of the second container. The decorative sleeve can also be made in various colors or patterns to facilitate the creation of different product series. The protective sleeve protects the lower part of the second container, preventing external forces from squeezing the second container during unnecessary use. The protective sleeve can be made of transparent plastic.

[0030] Compared with the prior art, the advantages of the present invention are as follows:

[0031] 1. Two independent and enclosed containment chambers can better preserve the two materials separately, ensure sealing, and prevent the two materials from coming into contact with the outside world, which would cause changes in their properties.

[0032] 2. When it is necessary to mix the materials in the two accommodating cavities, simply insert the first container into the interface of the docking sleeve and move the first container toward the puncture part and the piston, so that the sealing film is punctured by the puncture part. The first container also pushes the piston to move away from the first container to open the connecting channel, realizing the connection between the first accommodating cavity and the second accommodating cavity, and the materials are then mixed. The material mixing operation is convenient.

[0033] 3. Importantly, this design independently sets up the piercing part and the piston. The piercing part can be made of harder plastic, making it sharper and easier to pierce the sealing membrane; the piston can be made of softer plastic, which is beneficial for sealing. Furthermore, the piercing part is fixed inside the docking sleeve (preferably, the piercing part and the docking sleeve are integrally molded). Because the position of the piercing part is fixed relative to the second container, it ensures that the piercing part pierces the sealing membrane. Further movement of the first container then drives the piston to move and open the connecting channel, realizing the connection between the first and second receiving cavities. This structure effectively ensures that piercing precedes connection, preventing the solution in the second receiving cavity from overflowing. Attached Figure Description

[0034] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present invention (the first container is just connected to the docking sleeve);

[0035] Figure 2 This is a cross-sectional view of an embodiment of the present invention (the first container is just connected to the docking sleeve);

[0036] Figure 3 This is a three-dimensional structural diagram of an embodiment of the present invention (the first container is screwed onto the docking sleeve);

[0037] Figure 4 This is a cross-sectional view of an embodiment of the present invention (the first container is tightened onto the docking sleeve);

[0038] Figure 5 This is a three-dimensional schematic diagram of the second container in an embodiment of the present invention;

[0039] Figure 6 This is a three-dimensional schematic diagram of the first container in an embodiment of the present invention;

[0040] Figure 7 This is a three-dimensional schematic diagram of the mating sleeve in an embodiment of the present invention;

[0041] Figure 8 This is an exploded perspective view of an embodiment of the present invention. Detailed Implementation

[0042] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0043] like Figures 1-8 The image shown is a preferred embodiment of the present invention.

[0044] A packaging container for separate storage, including

[0045] In a practical application scenario, a first container 1 with a first receiving cavity 3a contains freeze-dried balls or freeze-dried powder, and the opening of the first container 1 is provided with a puncturable sealing membrane 4.

[0046] The second container 2 has a second receiving cavity 3b, in a practical use scenario, in which a skin care liquid for dissolving freeze-dried balls or freeze-dried powder is placed.

[0047] The docking sleeve 5 is fixed to the opening end of the second container 1. The docking sleeve 5 has an interface portion 51 for connecting the first container 1 and a connecting channel 52 for connecting the interface portion 51 and the second receiving cavity 3b.

[0048] The piercing part 6 is fixed on the docking sleeve 5 and located inside the interface part 51. In this embodiment, the piercing part 6 and the docking sleeve 5 are integrally formed. There are two piercing parts 6, which are located inside the upper port wall of the connecting channel 52 and extend upward into the interface part 51.

[0049] Piston 7 is movably disposed within the connecting channel 52 for blocking or opening the connecting channel 52;

[0050] The interface 51 is operably fitted onto the first container 1. The first container 1 moves toward the puncture part 6 and the piston 7, causing the sealing film 4 to be punctured by the puncture part 6. The first container 1 also pushes the piston 7 to move away from the first container 1 to open the connecting channel 52, thereby realizing the connection between the first receiving cavity 3a and the second receiving cavity 3b.

[0051] The first container 1 has a base portion 11 and an extension portion 12. A port bracket 8 is sleeved and connected to the extension portion 12. A sealing film 4 is disposed at the opening end of the port bracket 8. A first sealing ring 10a is provided at the connection between the port bracket 8 and the opening of the first container 1. The outer peripheral wall of the extension portion 12 is provided with a first external thread 121, and the inner peripheral wall of the port bracket 8 is provided with a first internal thread 81 that matches the first external thread 121. The outer peripheral wall of the port bracket 8 is provided with a second external thread 82. Before use, a cap is connected to the port bracket 8 via the external thread. The inner peripheral wall of the interface portion 51 is provided with a second internal thread 511 that matches the second external thread 82. Before use, a cap is connected to the interface portion 51 via the internal thread.

[0052] The upper part of the inner peripheral wall of the port bracket 8 is provided with a retaining elastic foot 83 that has an elastic tendency towards the central axis of the port bracket 8. The outer peripheral wall of the extension 12 is provided with a protruding retaining rib 122. When the port bracket 8 is screwed onto the extension 12, the retaining elastic foot 83 presses against the upper part of the retaining rib 122, and the end face of the extension 12 presses against the first sealing ring 10a. The retaining elastic foot 83 pressing against the upper part of the retaining rib 122 plays a role in preventing the port bracket 8 from being pushed back. After the port bracket 8 is screwed onto the extension 12, even if the user reverses the port bracket 8, the opening of the first container 1 cannot be opened, ensuring that the medium in the first container 1 is always isolated by the sealing film 4, and preventing the consumer from accidentally opening the port bracket 8, which would cause the medium inside to come into contact with air and become ineffective.

[0053] The upper part of the inner wall of the interface portion 51 is provided with an annular inner shoulder 512. The top surface of the annular inner shoulder 512 is provided with a plurality of first anti-rotation blocks 9a arranged circumferentially. The surface of the first anti-rotation block 9a corresponding to the direction in which the port bracket 8 is screwed into the interface portion 51 is the first inclined surface 9a1, and the surface of the first anti-rotation block 9a corresponding to the direction in which the port bracket 8 is screwed out of the interface portion 51 is the first anti-retraction plane 9a2. The upper end of the port bracket 8 is provided with an annular shoulder 84. The bottom surface of the annular shoulder 84 is provided with a plurality of second anti-rotation blocks 9b arranged circumferentially. The surface of the second anti-rotation block 9b corresponding to the direction in which the port bracket 8 is screwed into the interface portion 51 is the second inclined surface 9b1, and the surface of the second anti-rotation block 9b corresponding to the direction in which the port bracket 8 is screwed out of the interface portion is the second anti-retraction plane 9b2. When the port bracket 8 is screwed into the interface portion 51, the first anti-rotation blocks 9a and the second anti-rotation blocks 9b are arranged alternately.

[0054] When the port bracket 8 is rotated in the opposite direction, the first anti-reverse plane 9a2 and the second anti-reverse plane 9b2 abut against each other, preventing it from rotating in reverse. That is, the first anti-rotation block 9a and the second anti-rotation block 9b prevent the port bracket 8 from rotating in the opposite direction (reverse rotation can cause the port bracket 8 to disengage from the interface part 51). This means that when the port bracket 8 is screwed into the interface part 51, the port bracket 8 can no longer disengage from the interface part 51 and will always remain in the screwed position, preventing the user from accidentally disengaging the first container 1 from the docking sleeve 5 along with the port bracket 8, causing the mixture to flow out.

[0055] The bottom surface of the interface portion 51 is provided with a second sealing ring 10b, which is located below the second internal thread 511. When the sealing film 4 on the port bracket 8 is punctured by the puncture portion 6, the port bracket 8 abuts against the second sealing ring 10b.

[0056] The piston 7 includes an integrally formed sealing part 71 and a push rod part 72. In this embodiment, there are two push rod parts 72, which are arranged radially symmetrically. The sealing part 71 is located at the lower end of the push rod part 72. When the push rod part 72 is not triggered by the first container 1, the sealing part 71 is tightly fitted with the lower port of the connecting channel 52 to seal the second receiving cavity 3b. The upper end of the push rod part 72 extends into the interface part 51. During the movement, the first container 1 abuts against the push rod part 72 to drive the sealing part 71 to move away from the first container 1.

[0057] Each push rod part 72 is connected to a connecting ring 73 integrally formed thereto. When the push rod part 72 is not triggered by the first container 1, the connecting ring 73 and the inner wall of the upper port of the connecting channel 52 are in a beveled fit.

[0058] The upper inner wall of the second receiving cavity 3b is formed with a blocking rib 3b1. When the sealing part 71 moves down to open the connecting channel 52, the blocking rib 3b1 blocks the sealing part 71. When the sealing part 71 is in a state of tight fit with the lower end of the connecting channel 52, the top end of the piercing part 6 is higher than the top end of the push rod part 72.

[0059] In this embodiment, the second container 2 is made of an elastic material and can be squeezed, that is, the second container can be flattened by fingers and can spring back to its original shape. The second container 2 is provided with an extrusion port 21, and a soft plug 22 is provided at the extrusion port 21 for sealing. The lower end of the connecting sleeve 5 is inserted into and fastened to the opening end of the second container 2. It also includes a decorative sleeve 13 and a protective sleeve 14. The decorative sleeve 13 has stepped perforations. The upper end of the second container 2 is also stepped. The upper end of the second container 2 is placed in the stepped perforations of the decorative sleeve 13 and is glued and fixed. The lower end of the decorative sleeve 13 has a connecting part 131. The protective sleeve 14 is snapped on the outside of the connecting part 131 in a pluggable manner. The second container 2, which is exposed at the lower part of the decorative sleeve 13, is placed inside the protective sleeve 14.

[0060] The working principle and process of this compartmentalized packaging container are as follows:

[0061] When mixing, such as Figures 1-4 As shown, the port bracket 8 of the first container 1 is first screwed into the interface 51 of the docking sleeve 5. The first container 1 rotates and moves downward together with the port bracket 8 until the sealing membrane 4 is punctured by the puncture part 6. The port bracket 8 abuts against the second sealing ring 10b and is further screwed into the first container 1. The first container 1 continues to move downward. During the movement, the first container 1 abuts against the push rod part 72 to drive the sealing part 71 to move away from the first container 1, opening the connecting channel 52 and realizing the connection between the first receiving cavity 3a and the second receiving cavity 3b. The solution in the second receiving cavity 3b is sequentially added to the first receiving cavity 3a through the connecting channel 52 and the puncture of the sealing membrane 4, and mixed with the substances in it.

[0062] This design independently sets up the piercing part 6 and the piston 7. The piercing part 6 can be made of harder plastic, which is sharper and facilitates piercing the sealing membrane 4; the piston 7 can be made of softer plastic, which is beneficial for sealing. Furthermore, the piercing part 6 is fixed inside the docking sleeve 5 (preferably, the piercing part 6 and the docking sleeve 5 are integrally formed). Because the position of the piercing part 6 is fixed relative to the second container 2, it ensures that the piercing part 6 pierces the sealing membrane 4. Further movement of the first container 1 then drives the piston 7 to move and open the connecting channel 52, realizing the connection between the first receiving cavity 3a and the second receiving cavity 3b. This structure effectively ensures that piercing precedes connection, preventing the solution in the second receiving cavity 3b from overflowing.

[0063] It should be noted that in the description of this embodiment, the terms "front," "rear," "left," "right," "inner," "outer," "upper," and "lower," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are merely for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. 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 direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

Claims

1. A packaging container for compartmentalized storage, comprising: A first container (1) having a first receiving cavity (3a) and a puncturable sealing membrane (4) at the opening of the first container (1); A second container (2) having a second receiving cavity (3b); The docking sleeve (5) is fixed to the opening end of the second container (2). The docking sleeve (5) has an interface (51) for connecting the first container (1) and a connecting channel (52) for connecting the interface (51) and the second receiving cavity (3b). Its features are: Also includes The piercing part (6) is fixed on the docking sleeve (5) and located inside the interface part (51); A piston (7) is movably disposed within the connecting channel (52) for sealing or opening the connecting channel (52); The interface (51) is operably fitted onto the first container (1), the first container (1) moves toward the puncture part (6) and the piston (7), so that the sealing film (4) is punctured by the puncture part (6), and the first container (1) also pushes the piston (7) to move away from the first container (1) to open the connecting channel (52), so as to realize the connection between the first receiving cavity (3a) and the second receiving cavity (3b); The first container (1) has a base (11) and an extension (12). A port bracket (8) is sleeved and connected to the extension (12). A sealing film (4) is disposed at the opening end of the port bracket (8). A first sealing ring (10a) is provided at the connection between the port bracket (8) and the opening of the first container (1). The outer peripheral wall of the extension (12) is provided with a first external thread (121). The inner peripheral wall of the port bracket (8) is provided with a first internal thread (81) that matches the first external thread (121). The outer peripheral wall of the port bracket (8) is provided with a second external thread (82). The inner peripheral wall of the interface (51) is provided with a thread that matches the second external thread (82). The piston (7) includes an integrally formed sealing part (71) and a push rod part (72). There are at least two push rod parts (72). The sealing part (71) is located at the lower end of the push rod part (72). When the push rod part (72) is not triggered by the first container (1), the sealing part (71) is tightly fitted with the lower port of the connecting channel (52) to seal the second receiving cavity (3b). The upper end of the push rod part (72) extends into the interface part (51). During the movement, the first container (1) abuts against the push rod part (72) to drive the sealing part (71) to move away from the first container (1).

2. The packaging container for separate storage according to claim 1, characterized in that: The upper part of the inner peripheral wall of the port bracket (8) is provided with a retaining elastic foot (83) having an elastic tendency toward the central axis of the port bracket (8). The outer peripheral wall of the extension (12) is provided with a protruding retaining rib (122). When the port bracket (8) is screwed onto the extension (12), the retaining elastic foot (83) presses against the upper part of the retaining rib (122), and the end face of the extension (12) presses against the first sealing ring (10a).

3. The packaging container for separate storage according to claim 2, characterized in that: The upper part of the inner wall of the interface (51) is provided with an annular inner shoulder (512). The top surface of the annular inner shoulder (512) is provided with multiple first anti-rotation blocks (9a) spaced circumferentially. The surface of the first anti-rotation block (9a) corresponding to the direction in which the port bracket (8) screws into the interface (51) is a first inclined surface (9a1), and the surface of the first anti-rotation block (9a) corresponding to the direction in which the port bracket (8) screws out of the interface (51) is a first anti-retraction plane (9a2). The upper end of the port bracket (8) is provided with an annular shoulder (…). 84), the bottom surface of the annular shoulder (84) is provided with a plurality of second anti-rotation blocks (9b) arranged at intervals along the circumference. The surface of the second anti-rotation block (9b) corresponding to the direction in which the port bracket (8) is screwed into the interface part (51) is the second inclined surface (9b1), and the surface of the second anti-rotation block (9b) corresponding to the direction in which the port bracket (8) is screwed out of the interface part is the second anti-reverse plane (9b2). When the port bracket (8) is screwed into the interface part (51), the first anti-rotation block (9a) and the second anti-rotation block (9b) are arranged alternately.

4. The packaging container for separate storage according to claim 1, characterized in that: The bottom surface of the interface (51) is provided with a second sealing ring (10b). The second sealing ring (10b) is located below the second internal thread (511). When the sealing film (4) on the port bracket (8) is punctured by the puncture part (6), the port bracket (8) abuts against the second sealing ring (10b).

5. The packaging container for separate storage according to claim 1, characterized in that: The piercing part (6) and the docking sleeve (5) are integrally formed. There are two piercing parts (6) located in the upper port wall of the connecting channel (52) and extending upward into the interface part (51).

6. The packaging container for separate storage according to claim 1, characterized in that: Each push rod part (72) is connected to a connecting ring (73) integrally formed therewith. When the push rod part (72) is not triggered by the first container (1), the connecting ring (73) and the inner wall of the upper port of the connecting channel (52) are in a beveled fit.

7. The packaging container for separate storage according to claim 1, characterized in that: The upper inner wall of the second receiving cavity (3b) is formed with a blocking rib (3b1). When the sealing part (71) is moved down to open the connecting channel (52), the blocking rib (3b1) blocks the sealing part (71). When the sealing part (71) is in a state of tight fit with the lower end of the connecting channel (52), the top of the piercing part (6) is higher than the top of the push rod part (72).

8. The packaging container for separate storage according to claim 1, characterized in that: The second container (2) is made of elastic material and can be squeezed. The second container (2) is provided with an extrusion port (21). The extrusion port (21) is sealed with a soft plug (22). The lower end of the connecting sleeve (5) is inserted into and fastened to the opening of the second container (2). It also includes a decorative sleeve (13) and a protective sleeve (14). The decorative sleeve (13) has stepped perforations. The upper end of the second container (2) is also stepped. The upper end of the second container (2) is placed in the stepped perforations of the decorative sleeve (13) and glued and fixed. The lower end of the decorative sleeve (13) has a connecting part (131). The protective sleeve (14) is snapped on the connecting part (131) in a pluggable manner. The second container (2) exposed at the lower part of the decorative sleeve (13) is placed in the protective sleeve (14).

Images