Packaging container

Abstract

The embodiment of the utility model relates to the technical field of cosmetic packaging, in particular to a packaging container which comprises a containing part, a first cover part and a second cover part. The accommodating piece comprises an accommodating body and an accommodating connecting part, the accommodating body forms an accommodating groove, and the accommodating connecting part and the accommodating body form an annular groove; the first cover piece seals the containing groove, and the second cover piece seals the annular groove. The first cover piece comprises a first cover body and a first connecting part, and the first connecting part is provided with a first sealing part and an anti-disengaging part in a spaced mode. The accommodating body is provided with a first sealing matching part and an anti-drop matching part at an interval; the first connecting part is closer to the first cover body than the anti-falling part, and the anti-falling part or the anti-falling matching part forms a channel for air to flow out, so that air in the containing groove can be exhausted to the outside through the channel before the first sealing part and the first sealing matching part establish sealing matching. According to the embodiment of the invention, the length of the matching surface between the first sealing part and the first sealing matching part can be reduced, and air in the accommodating groove can be discharged conveniently.

Description

TECHNICAL FIELD

[0001] Embodiments of the present application relate to the technical field of cosmetic packaging, and in particular, to a packaging container. BACKGROUND

[0002] The statements herein are merely provided to give general background information about the present application, and do not necessarily constitute the prior art.

[0003] A packaging container for containing cosmetics, generally comprises a containing member for forming a containing groove and a cover member for sealing the containing groove, in which the cosmetics are stored. When the cosmetics are fluid such as foundation liquid, in order to prevent the moisture loss of the cosmetics before use, an inner cover with a sealing film is generally arranged inside the cover member to seal the containing groove. When the consumer uses the cosmetics after purchase, only the sealing film on the inner cover needs to be removed, and the inner cover does not need to be removed as a whole from the containing member. In order to form a better sealing effect and anti-dropping performance between the inner cover and the containing member, a longer cooperating surface is arranged on the inner cover and the containing member respectively for sealing cooperation.

[0004] The inventor of the present application finds that, for the packaging container with the above structure, when the inner cover and the containing member are assembled, the stroke of the cooperating surface of the inner cover moving to the position of assembly relative to the cooperating surface of the containing member is long, and when the two cooperating surfaces just come into contact, the air flow channel between the inner cover and the containing member is blocked, which causes the air in the containing member to be unable to be discharged, so that the assembly of the inner cover and the containing member becomes very laborious. And due to the air being unable to be smoothly discharged, the air in the containing groove causes the sealing film to be upwardly bulged, which affects the appearance. CONTENT OF THE UTILITY MODEL

[0005] In the following, a brief summary of the present application is given to provide a basic understanding of some aspects of the present application. It should be understood that this summary is not an extensive overview of the present application. It is not intended to identify key or important parts of the present application nor to delineate the scope of the present application. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.

[0006] To solve the above technical problems, embodiments of the present application provide a packaging container, which comprises a containing member, a first cover member and a second cover member. The containing member comprises a containing body and a containing connecting part connected with the containing body, the containing body is arranged to form a containing groove for containing material, and the containing connecting part and the containing body jointly form an annular groove located radially outside the containing groove; the first cover member is used for sealing the containing groove; and the second cover member is used for sealing the annular groove to seal the containing groove twice. The first cover member comprises a first cover body and a first connecting part connected with the first cover body, a first sealing part and an anti-disengagement part are arranged in a spaced manner on a side surface of the first connecting part facing the containing body; a first sealing matching part and an anti-disengagement matching part are arranged in a spaced manner on a surface of the containing body facing the first connecting part, the first sealing matching part is used for establishing a sealing cooperation with the first sealing part to seal the containing groove, and the anti-disengagement matching part is used for cooperating with the anti-disengagement part to prevent the first cover member from disengaging from the containing member; wherein the first sealing part is closer to the first cover body than the anti-disengagement part; and the anti-disengagement part or the anti-disengagement matching part is arranged to form a passage for air outflow, so that the air in the containing groove can be discharged to the outside through the passage before the first sealing part establishes the sealing cooperation with the first sealing matching part.

[0007] Further, the first sealing part is an annular protruding ring protruding towards the containing body.

[0008] Further, when the first sealing part establishes the sealing cooperation with the first sealing matching part, a radial inner side surface of the first connecting part located above the first sealing part has a gap between a radial outer side surface of the containing body located above the first sealing matching part, so as to allow the air in the containing groove to flow outwards.

[0009] Further, a maximum diameter of the radial outer side surface of the containing body located above the first sealing matching part is smaller than a minimum diameter of the radial inner side surface of the first sealing part, and a maximum diameter of the radial outer side surface of the first sealing matching part is greater than the minimum diameter of the radial inner side surface of the first sealing part.

[0010] Further, the diameter of the radial outer side surface of the containing body located above the first sealing matching part gradually increases from top to bottom.

[0011] Further, the diameter of the radial outer side surface of the containing body located between the first sealing matching part and the anti-disengagement matching part is the same as the diameter of the radial outer side surface of the first sealing matching part; and a minimum diameter of the radial inner side surface of the first connecting part located below the first sealing part is greater than the diameter of the radial outer side surface of the first sealing matching part.

[0012] Further, the anti-disengagement matching part is an annular protruding ring protruding towards the first connecting part, and the anti-disengagement part is an annular protruding ring formed at the bottom of the radial inner side surface of the first connecting part and protruding towards the containing body.

[0013] Further, the accommodating connecting part comprises a cylinder and a connecting part connecting the accommodating body at the bottom of the cylinder, and the bottom surface of the connecting part is higher than the bottom wall of the accommodating groove.

[0014] Further, the bottom of the first connecting part opposite to the accommodating groove forms a second sealing part, and the cylinder is provided with a second sealing matching part, and the second sealing part is used to establish sealing matching with the second sealing matching part when the first sealing part establishes sealing matching with the first sealing matching part.

[0015] Further, the diameter of the radial inner side surface of the cylinder above the second sealing matching part gradually decreases from top to bottom.

[0016] Further, the second cover comprises a second cover body, a second connecting part connected with the second cover body, and a third sealing part provided on the second connecting part and used to establish sealing matching with the cylinder to seal the annular groove.

[0017] Further, the first connecting part comprises a first extending part connected with the periphery of the first cover body, a second extending part extending from the end of the first extending part in a direction away from the accommodating body, and a third extending part extending upward from the second extending part, and the third extending part is arranged to be elastically deformed, and when the first sealing part establishes sealing matching with the first sealing matching part, the third extending part has a gap with the cylinder to allow air in the accommodating groove to flow, and the second cover comprises a second cover body and a fourth sealing part connected with the second cover body, and the fourth sealing part is used to abut against the third extending part to make the third extending part elastically deformed and sealed with the cylinder.

[0018] The packaging container provided by the embodiment of the present application is beneficial to reducing the length of the matching surface between the first sealing part and the first sealing matching part, shortening the stroke of the first sealing part and the first sealing matching part to establish sealing matching, and facilitating the assembly of the first cover and the accommodating part, and since the anti-disengagement part or the anti-disengagement matching part forms a passage for air to flow out, it is beneficial to discharge the air in the accommodating groove before the first sealing part and the first sealing matching part establish sealing matching. BRIEF DESCRIPTION OF DRAWINGS

[0019] Other purposes and advantages of the present application will be apparent and can help to have a comprehensive understanding of the present application through the following description of the embodiments of the present application with reference to the accompanying drawings.

[0020] Figure 1 is a structural schematic diagram of the packaging container provided by an embodiment of the present application.

[0021] Figure 2 is Figure 1 is an exploded schematic diagram of the packaging container.

[0022] Figure 3 is Figure 1 A cross-sectional view of the packaging container is shown.

[0023] Figure 4 is Figure 3 An enlarged view of a portion of the packaging container is shown.

[0024] Figure 5 is Figure 2 A structural view of the first cover member is shown.

[0025] Figure 6 is Figure 3 A cross-sectional view of the containing member of the packaging container is shown.

[0026] Figure 7 is Figure 6 An enlarged view of a portion of the containing member is shown.

[0027] Figure 8 is a cross-sectional view of the packaging container according to another embodiment of the present application.

[0028] Figure 9 is Figure 8 An enlarged view of a portion of the packaging container is shown.

[0029] Figure 10 is Figure 8 A cross-sectional view of the first cover member is shown.

[0030] Figure 11 is Figure 8 An enlarged view of a portion of the containing member of the packaging container is shown.

[0031] Figure 12 is Figure 10 An enlarged view of a portion of the first cover member of the packaging container is shown.

[0032] BRIEF DESCRIPTION OF DRAWINGS

[0033] 100, packaging container;

[0034] 10, containing member; 11, containing body; 110, containing groove; 111, first sealing fitting portion; 112, anti-disengagement fitting portion; 12, containing connecting portion; 120, annular groove; 121, cylindrical member; 1211, second sealing fitting portion; 1212, first cylindrical segment; 1213, second cylindrical segment; 122, connecting portion;

[0035] 20, first cover member; 21, first cover body; 22, first connecting portion; 221, first extension portion; 222, second extension portion; 223, third extension portion; 23, first sealing portion; 24, anti-disengagement portion; 240, passage; 25, second sealing portion;

[0036] 30 second cover member; 31 second cover body; 32 second connecting portion; 33 third sealing portion; 34 fourth sealing portion.

[0037] It should be noted that the accompanying drawings are not necessarily drawn to scale, but are merely intended to show illustrative aspects. DETAILED DESCRIPTION

[0038] Exemplary embodiments of the present application will be described herein below with reference to the accompanying drawings. In the description, all features that are not described in detail of the actual embodiments have not been described in the specification for the sake of clarity and conciseness. It should be appreciated, however, that many implementation-specific decisions can have to be made to develop a specifically tailored embodiment in order to achieve the developer's specific goals, such as compliance with system- and business-related constraints, which can vary from one implementation to another. Moreover, it should be appreciated that a developer using, and / or selling, the present application has the right to use creative techniques in order to circumvent such constraints.

[0039] It should also be noted herein that, in order not to obscure the present application with details that are well known to those having ordinary skill in the art, structural and / or procedural details that are conventionally used can not be described herein.

[0040] Embodiments of the present application provide a packaging container.

[0041] Referring to Figure 1 and Figure 2 , Figure 1 is a structural schematic diagram of a packaging container 100 provided by an embodiment of the present application, Figure 2 is Figure 1 is an exploded schematic diagram of the packaging container 100 shown, the packaging container 100 can include a containing member 10, a first cover member 20, and a second cover member 30. The containing member 10 can include a containing body 11 and a containing connecting portion 12 connected to the containing body 11, the containing body 11 is arranged to form a containing groove 110 for containing material, and the containing connecting portion 12 and the containing body 11 together form an annular groove 120 located radially outside the containing groove 110; the first cover member 20 is used to seal the containing groove 110; and the second cover member 30 is used to seal the annular groove 120 to seal the containing groove 110 twice.

[0042] Referring to Figures 3 to 5 , Figure 3 is Figure 1 is a cross-sectional schematic diagram of the packaging container 100 shown, Figure 4 is Figure 3A partial enlarged view of the packaging container 100 is shown; Figure 5 is Figure 2 A structural schematic view of the first cover 20 is shown. The first cover 20 includes a first cover body 21 and a first connecting portion 22 connected with the first cover body 21, the first connecting portion 22 is spaced apart from a side surface of the containing body 11 and is provided with a first sealing portion 23 and an anti-disengagement portion 24; a surface of the containing body 11 facing the first connecting portion 22 is spaced apart and is provided with a first sealing matching portion 111 and an anti-disengagement matching portion 112, the first sealing matching portion 111 is used to establish a sealing cooperation with the first sealing portion 23 to seal the containing groove 110, and the anti-disengagement matching portion 112 is used to cooperate with the anti-disengagement portion 24 to prevent the first cover 20 from disengaging from the containing member 10; wherein the first sealing portion 23 is closer to the first cover body 21 than the anti-disengagement portion 24; the anti-disengagement portion 24 or the anti-disengagement matching portion 112 is provided to form an air outlet channel 240, so that the air in the containing groove 110 can be discharged to the outside through the air outlet channel 240 before the first sealing portion 23 establishes a sealing cooperation with the first sealing matching portion 111.

[0043] The packaging container 100 provided by the embodiments of the present application is beneficial to shorten the length of the cooperation surface between the first sealing portion 23 and the first sealing matching portion 111 by providing the anti-disengagement portion 24 on the side of the first sealing portion 23 away from the first cover body 21, shorten the stroke of the first sealing portion 23 and the first sealing matching portion 111 to establish a sealing cooperation, and facilitate the assembly of the first cover 20 and the containing member 10. Moreover, the anti-disengagement portion 24 or the anti-disengagement matching portion 112 is provided to form the air outlet channel 240, so that the air in the containing groove 110 can be discharged before the first sealing portion 23 establishes a sealing cooperation with the first sealing matching portion 111.

[0044] In some embodiments, the material in the containing groove 110 can be a cosmetic product, such as a foundation.

[0045] In some embodiments, the first cover body 21 can include a ring and a sealing film used to seal the ring. The first connecting portion 22 is connected with the ring. The packaging container 100 provided by the embodiments of the present application is beneficial to discharge the air in the containing groove 110 before the first sealing portion 23 establishes a sealing cooperation with the first sealing matching portion 111 by providing the anti-disengagement portion 24 or the anti-disengagement matching portion 112 to form the air outlet channel 240, so as to avoid the sealing film from being inflated upwards and affecting the appearance.

[0046] In some embodiments, the anti-disengagement portion 24 is provided to form the air outlet channel 240. The air outlet channel 240 can be a notch formed on the anti-disengagement portion 24.

[0047] In other embodiments, the anti-disengagement matching portion 112 is provided to form the air outlet channel.

[0048] In some embodiments, the first sealing portion 23 can be a ring-shaped protrusion protruding towards the containing body 11. In such embodiments, the above arrangement makes the length of the mating surface between the first sealing portion 23 and the first sealing mating portion 111 small, thereby facilitating the shortening of the stroke for the first sealing portion 23 and the first sealing mating portion 111 to establish a sealing cooperation, and facilitating the instant formation of an air-tightness, thereby facilitating the discharge of the air in the containing groove 110 to the outside as much as possible.

[0049] Referring to Figure 6 and Figure 7 , Figure 6 is Figure 3 a cross-sectional view of the containing member 10 of the packaging container 100 shown; Figure 7 is Figure 6 a partial enlarged view of the containing member 10. In some embodiments, when the first sealing portion 23 and the first sealing mating portion 111 establish a sealing cooperation, the gap between the radially inner surface of the first connecting portion 22 above the first sealing portion 23 and the radially outer surface of the containing body 11 above the first sealing mating portion 111 is provided for the air in the containing groove 110 to flow to the outside. In such embodiments, the above arrangement makes the gas in the containing groove 110 flow into the above-mentioned gap, and then flow into the channel 240, so as to discharge the air in the containing groove 110 to the outside through the channel 240.

[0050] In some embodiments, the radially outer surface of the first sealing mating portion 111 protrudes outwardly along the radial direction of the containing body 11 beyond the radially outer surface of the containing body 11 above the first sealing mating portion 111, so that a gap can be formed between the first sealing portion 23 and the radially outer surface of the containing body 11 before the first sealing portion 23 and the first sealing mating portion 111 establish a sealing cooperation.

[0051] In some embodiments, the maximum diameter of the radially outer surface of the containing body 11 above the first sealing mating portion 111 is smaller than the minimum diameter of the radially inner surface of the first sealing portion 23, and the maximum diameter of the radially outer surface of the first sealing mating portion 111 is greater than the minimum diameter of the radially inner surface of the first sealing portion 23; so that a gap can be formed between the first sealing portion 23 and the radially outer surface of the containing body 11 before the first sealing portion 23 and the first sealing mating portion 111 are in contact, for the air in the containing groove 110 to flow; after the first sealing portion 23 and the first sealing mating portion 111 are in contact, the two abut to form a sealing.

[0052] In some embodiments, the diameter of the radially outer surface of the receiving body 11 above the first sealing mating portion 111 gradually increases from top to bottom. In such an embodiment, the above arrangement ensures that a gap is formed between the receiving body 11 and the radially inner surface of the first connecting portion 22 before the first sealing portion 23 and the first sealing mating portion 111 establish a sealing fit, so as to expel air from the receiving groove 110.

[0053] In some embodiments, the diameter of the radially outer surface of the receiving body 11 located between the first sealing engagement portion 111 and the anti-detachment engagement portion 112 is the same as the diameter of the radially outer surface of the first sealing engagement portion 111. That is, the radially outer surface of the receiving body 11 from the first sealing engagement portion 111 to above the anti-detachment engagement portion 112 is on the same cylindrical surface, and the radially outer surface of the first sealing engagement portion 111 is also on the same cylindrical surface. The minimum diameter of the radially inner surface of the first connecting portion 22 located below the first sealing portion 23 is greater than the diameter of the radially outer surface of the first sealing engagement portion 111. In such an embodiment, a gap can be formed between the radially outer surface of the receiving body 11 located below the first sealing engagement portion 111 and the radially inner surface of the first connecting portion 22 located below the first sealing portion 23 before a sealing engagement is established between the first sealing portion 23 and the first sealing engagement portion 111, so that air can flow in the receiving groove 110.

[0054] In some embodiments, the anti-detachment fitting portion 112 is an annular protrusion protruding toward the first connecting portion 22, and the anti-detachment portion 24 is an annular protrusion formed at the bottom of the radially inner surface of the first connecting portion 22 protruding toward the receiving body 11. In such an embodiment, the movement of the first cover 20 can be restricted by the engagement of the two annular protrusions, thereby preventing the first cover 20 from detaching from the receiving member 10.

[0055] See Figure 6 and Figure 7 In some embodiments, the receiving connection portion 12 includes a cylindrical member 121 and a connecting portion 122 connected to the receiving body 11 at the bottom of the cylindrical member 121, the bottom surface of the connecting portion 122 being higher than the bottom wall of the receiving groove 110; the first connecting portion 22 is also configured to form a seal with the cylindrical member 121. In such embodiments, the first connecting portion 22 being configured to form a seal with the cylindrical member 121 can enhance the sealing performance of the receiving groove 110, which helps to prevent the loss of moisture from the material in the receiving groove 110.

[0056] In some embodiments, the cylindrical member 121, the connecting portion 122, and the receiving body 11 together form an annular groove 120.

[0057] See Figure 4 In some embodiments, a second sealing portion 25 is formed on the bottom side of the first connecting portion 22 facing away from the receiving groove 110; see also Figure 7In some embodiments, the second sealing part 25 can be a ring-shaped protrusion protruding towards the cylinder piece 121, so as to reduce the length of the mating surface between the second sealing part 25 and the second sealing mating part 1211. The upper surface of the ring-shaped protrusion can be a flat surface instead of an inclined surface or a curved surface, so as to further reduce the length of the mating surface between the second sealing part 25 and the second sealing mating part 1211.

[0058] In some embodiments, the second sealing part 25 can be a ring-shaped protrusion protruding towards the cylinder piece 121, so as to reduce the length of the mating surface between the second sealing part 25 and the second sealing mating part 1211. The upper surface of the ring-shaped protrusion can be a flat surface instead of an inclined surface or a curved surface, so as to further reduce the length of the mating surface between the second sealing part 25 and the second sealing mating part 1211.

[0059] Referring to Figure 7 In some embodiments, the radial inner side surface of the cylinder piece 121 above the second sealing mating part 1211 gradually reduces in diameter from top to bottom. In such embodiments, the above arrangement ensures that a gap can be formed between the second sealing part 25 and the cylinder piece 121 before the first sealing part 23 and the first sealing mating part 111 establish a sealing cooperation, so as to discharge air in the containing groove 110. Moreover, such arrangement makes the upper end of the cylinder piece 121 more flexible, which is conducive to reducing the closing force of the second cover piece 30.

[0060] Referring to Figure 4 In some embodiments, the second cover piece 30 comprises a second cover body 31, a second connecting part 32 connected to the second cover body 31, and a third sealing part 33 arranged on the second connecting part 32 and configured to sealingly cooperate with the cylinder piece 121 to seal the annular groove 120. In such embodiments, the third sealing part 33 sealingly cooperates with the cylinder piece 121 to seal the annular groove 120, which can provide secondary sealing for the containing groove 110, and is conducive to enhancing the sealing performance of the containing groove 110.

[0061] In some embodiments, the third sealing part 33 can be a ring-shaped protrusion protruding towards the cylinder piece 121.

[0062] Referring to Figures 8 to 12 , Figure 8 is a cross-sectional view of a packaging container 100 provided by another embodiment of the present application, Figure 9 is Figure 8 is a partial enlarged view of the packaging container 100 shown in FIG. 8;

[0063] Figure 10 is Figure 8 a cross-sectional view of the first cover 20 is shown; Figure 11 is Figure 8 a partial enlarged view of the containing part 10 of the packaging container 100 is shown; Figure 12 is Figure 10 a partial enlarged view of the first cover 20 of the packaging container 100 is shown.

[0064] In some embodiments, the first connecting part 22 comprises a first extension part 221 connected with the periphery of the first cover body 21, a second extension part 222 extending from the end of the first extension part 221 in a direction away from the containing body 11, and a third extension part 223 extending upward from the second extension part 222; the third extension part 223 is arranged to be elastically deformable; when the first sealing part 23 and the first sealing cooperating part 111 establish a sealing cooperation, the third extension part 223 has a gap with the cylinder part 121 to allow the air in the containing groove 110 to flow; the second cover 30 comprises a second cover body 31 and a fourth sealing part 34 connected with the second cover body 31, the fourth sealing part 34 is used to abut against the third extension part 223 to make the third extension part 223 elastically deformable and sealed with the cylinder part 121. In such embodiments, the above arrangement can not affect the air flow out of the containing groove 110 during the process of the first cover 20 sealing the containing groove 110, while it can also ensure the sealing of the containing groove 110 to prevent the moisture loss of the material in the containing groove 110.

[0065] In some embodiments, the third extension part 223 can comprise a first part connected with the second extension part 222 and a second part connected with the first part. The surfaces of the third extension part 223 facing the cylinder part 121 are all the second part. The second part can be made of elastic material. The elastic material can be TPE or thermoplastic elastomer, for example. The first extension part 221, the second extension part 222 and the first part of the third extension part 223 can be integrally formed, and the material thereof can be made of hard plastic. The hard plastic can be PP material, for example.

[0066] Referring to Figure 11 , the cylinder part 121 comprises a first cylinder segment 1212 for facing the third extension part 223 and a second cylinder segment 1213 between the first cylinder segment 1212 and the connecting part 122, and the thickness of the first cylinder segment 1212 is smaller than the thickness of the second cylinder segment 1213. Such arrangement makes the first cylinder segment 1212 of the cylinder part 121 more elastic, which is beneficial to reduce the closing force of the second cover 30.

[0067] For the embodiments of the present application, it also needs to be explained that the embodiments and the features in the embodiments of the present application can be combined with each other to obtain new embodiments without conflict.

[0068] The above merely illustrates the embodiments of the present application, but the protection scope of the present application is not limited to this, and the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A packaging container, characterized in that The application relates to a container, comprising: a containing part, which comprises a containing body and a containing connecting part connected with the containing body, the containing body is arranged to form a containing groove for containing materials, and the containing connecting part and the containing body jointly form an annular groove located on the radial outside of the containing groove; a first cover part for sealing the containing groove; a second cover part for sealing the annular groove to seal the containing groove twice; the first cover part comprises a first cover body and a first connecting part connected with the first cover body, and a first sealing part and an anti-disengagement part are arranged on the side surface of the first connecting part facing the containing body; a first sealing matching part and an anti-disengagement matching part are arranged on the surface of the containing body facing the first connecting part, the first sealing matching part is used for establishing sealing cooperation with the first sealing part to seal the containing groove, and the anti-disengagement matching part is used for cooperating with the anti-disengagement part to prevent the first cover part from disengaging from the containing part; wherein the first sealing part is closer to the first cover body than the anti-disengagement part; the anti-disengagement part or the anti-disengagement matching part is arranged to form a channel for air outflow, so that air in the containing groove can be discharged to the outside through the channel before the first sealing part establishes sealing cooperation with the first sealing matching part.

2. The packaging container according to claim 1, characterized in that The first sealing part is an annular protruding ring protruding towards the containing body.

3. The packaging container according to claim 1, characterized in that When the first sealing part establishes sealing cooperation with the first sealing matching part, the radial inner side surface of the first connecting part located above the first sealing part has a gap between the radial outer side surface of the containing body located above the first sealing matching part, so as to flow outwardly for the air in the containing groove.

4. The packaging container according to claim 3, characterized in that The maximum diameter of the radial outer side surface of the containing body located above the first sealing matching part is smaller than the minimum diameter of the radial inner side surface of the first sealing part, and the maximum diameter of the radial outer side surface of the first sealing matching part is greater than the minimum diameter of the radial inner side surface of the first sealing part.

5. The packaging container according to claim 4, characterized in that The diameter of the radial outer side surface of the containing body located above the first sealing matching part gradually increases from top to bottom.

6. The packaging container of claim 1, wherein The diameter of the radial outer side surface of the containing body between the first sealing matching part and the anti-disengagement matching part is the same as that of the radial outer side surface of the first sealing matching part; the minimum diameter of the radial inner side surface of the first connecting part located below the first sealing part is greater than the diameter of the radial outer side surface of the first sealing matching part.

7. The packaging container of claim 1, wherein The anti-disengagement matching part is an annular protruding ring protruding towards the first connecting part, and the anti-disengagement part is an annular protruding ring formed on the bottom of the radial inner side surface of the first connecting part and protruding towards the containing body.

8. The packaging container of claim 1, wherein The containing connecting part comprises a cylinder part and a connecting part connecting the containing body at the bottom of the cylinder part, and the bottom surface of the connecting part is higher than the bottom wall of the containing groove; the first connecting part is further arranged to form sealing between the cylinder part.

9. The packaging container according to claim 8, characterized in that The bottom of the first connecting part forms a second sealing part on the side facing away from the containing groove; The barrel is provided with a second sealing fitting part, and the second sealing part is used to establish a sealing fitting with the second sealing fitting part while the first sealing part establishes a sealing fitting with the first sealing fitting part.

10. The packaging container according to claim 9, characterized in that The diameter of the radially inner surface of the barrel above the second sealing fitting part gradually decreases from top to bottom.

11. The packaging container according to claim 9, characterized in that The second cover includes a second cover body, a second connecting part connected with the second cover body, and a third sealing part provided on the second connecting part and used to seal with the barrel to seal the annular groove.

12. The packaging container of claim 8, wherein The first connecting part includes a first extending part connected with the periphery of the first cover body, a second extending part extending from the end of the first extending part away from the accommodating body, and a third extending part extending upward from the second extending part; The third extending part is arranged to be elastically deformed; When the first sealing part establishes a sealing fitting with the first sealing fitting part, a gap is formed between the third extending part and the barrel to allow the air in the accommodating groove to flow; The second cover includes a second cover body, a fourth sealing part connected with the second cover body, and the fourth sealing part is used to abut against the third extending part to make the third extending part elastically deformed and sealed with the barrel.

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