Container sealing structure

Abstract

A container sealing structure comprises a container and a cover body, the container is provided with a container opening, and the container opening is provided with external threads; the cover body comprises a top wall and a side wall arranged on the periphery of the outer side of the top wall, the side wall is provided with internal threads matched with the external threads, the top wall is provided with a through hole, a sealing film is arranged at the position of the through hole and connected with the top wall on the periphery of the through hole in a sealed mode, and a sealing check ring is arranged on the surface, facing the container, of the top wall and located between the through hole and the side wall. The sealing check ring can extend into the container opening and is attached to the inner wall of the container opening. According to the container sealing structure, the sealing film is arranged on the cover body in advance, the cover body and the container opening are connected through the threads, the sealing check ring is arranged on the cover body, the self-sealing function can be achieved when the container is covered, the sealing performance is good, the liquid filling efficiency and reliability are improved, the sealing difficulty and the equipment cost are reduced, the cover body is high in compatibility, and the sealing effect is good. And the device can adapt to containers of different models.

Description

Technical Field

[0001] The present application relates to the technical field of biochemical reaction instruments and equipment, and in particular to a container sealing structure. Background Art

[0002] In some biochemical reactions, such as gene sequencing, biochemical substances need to be contained in containers (such as reagent bottles), and the sealing of these containers is crucial. However, existing biochemical reaction containers have poor sealing properties, resulting in high leakage rates during production, storage, and transportation, seriously impacting product quality and production efficiency. Utility Model Content

[0003] In view of this, in order to solve at least one of the above defects, it is necessary to propose a container sealing structure.

[0004] In the first aspect, an embodiment of the present application provides a container sealing structure, comprising: a container and a cover body, the container having a container mouth, the container mouth having an external thread; the cover body comprising a top wall and a side wall arranged on the outer periphery of the top wall, the side wall having an internal thread matching the external thread, the top wall having a through hole, a sealing film being provided at the through hole, the sealing film being sealedly connected to the top wall at the periphery of the through hole, a sealing retaining ring being provided on the surface of the top wall facing the container, the sealing retaining ring being located between the through hole and the side wall, the sealing retaining ring being able to extend into the container mouth and fit against the inner wall of the container mouth.

[0005] In some possible embodiments, the sealing retaining ring includes a fitting portion and a guide portion that are connected to each other, the fitting portion is connected to the top wall, the guide portion is located at an end of the fitting portion away from the top wall, the outer diameter of the guide portion decreases successively in a direction away from the top wall, so that the surface of the guide portion facing the side wall forms an inclined surface, the maximum outer diameter of the guide portion is less than or equal to the inner diameter of the container mouth, and the maximum outer diameter of the fitting portion is greater than the inner diameter of the container mouth.

[0006] In some possible embodiments, a surface of the fitting portion close to the side wall is convex toward one side of the side wall to form an arc-shaped surface, or a surface of the fitting portion facing the side wall is wavy.

[0007] In some possible embodiments, the inclined surface is a curved surface, and the arcuate surface and the inclined surface are smoothly transitioned.

[0008] In some possible embodiments, the sealing ring is made of elastic material.

[0009] In some possible embodiments, the sealing ring and the top wall are an integral structure.

[0010] In some possible embodiments, a connecting groove is formed between the sealing ring and the side wall, and a sealing rubber gasket is provided at the bottom of the connecting groove near the top wall.

[0011] In some possible embodiments, the sealing film and the top wall are connected as one body by hot melting.

[0012] In some possible embodiments, the sealing film is made of aluminum foil, plastic or rubber.

[0013] In some possible embodiments, the sealing film is located on a surface of the top wall away from the container, or the sealing film is located on a surface of the top wall close to the container.

[0014] The container sealing structure of the present application embodiment pre-installs a sealing film on the lid, which is connected to the container opening via a threaded connection. A sealing retaining ring is also provided on the lid. The structural design of the lid allows for a self-sealing function when the container is closed, improving the efficiency and reliability of the liquid production and filling process. It also reduces the film sealing process during the liquid filling process, lowering the sealing difficulty and equipment costs during the filling process, thereby improving economic benefits. Furthermore, the container sealing structure is simple in structure, and the lid is highly compatible, adapting to different types of containers, thereby improving the stability and success rate of liquid product production, storage, and transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 Schematic diagram of a container sealing structure according to an embodiment of the present application.

[0017] Figure 2 To insert the needle into Figure 1 Schematic diagram of the structure after the container sealing structure is shown.

[0018] Figure 3 for Figure 1 Enlarged view of part A.

[0019] Figure 4 for Figure 1 Schematic diagram of the structure of the middle cover body.

[0020] Figure 5 for Figure 4 Magnified view of part B.

[0021] Figure 6This is a schematic diagram of the partial structure of a container sealing structure in another embodiment of the present application.

[0022] Description of main component symbols

[0023] 100. Container sealing structure; 10. Container; 1. Container opening; 11. External thread; 12. Inner wall; 2. Container body; 21. Accommodating chamber; 20. Lid; 3. Top wall; 31. First surface; 32. Second surface; 4. Side wall; 41. Internal thread; 5. Through hole; 6. Sealing membrane; 7. Sealing retaining ring; 71. Fitting portion; 72. Guide portion; 73. Arc-shaped surface; 74. Inclined surface; 8. Connecting groove; 9. Sealing rubber gasket; 30. Liquid; 40. Liquid collection needle; L1, L2, Outer diameter.

[0024] The following specific implementation methods will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present application in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments.

[0026] It should be noted that when a component is referred to as being "fixed to" or "mounted on" another component, it may be directly on the other component or there may be a central component. When a component is referred to as being "disposed on" another component, it may be directly on the other component or there may be a central component. As used herein, the term "and / or" includes all and any combinations of one or more of the relevant listed items.

[0027] In the field of gene sequencing, liquid reagents are typically contained in reagent bottles and sealed with reagent bottle caps. Due to their specific usage scenarios, these reagent bottle caps differ from conventional caps in that they feature a through-hole structure, allowing a reagent needle to penetrate the bottle and extract the reagents during the sequencing process. Therefore, these reagent bottles and caps used in the gene sequencing field place higher demands on their sealing and reliability during production, storage, and transportation.

[0028] Existing gene sequencing reagent bottles and caps typically require sealing during the reagent filling process. This typically involves electromagnetically heating the aluminum foil inside the cap. Upon contact with the bottle opening, the foil transfers heat to the bottle opening, melting it and sealing it. However, this sealing process requires a magnetic film seal, which increases equipment costs. Furthermore, in actual production, magnetic film seals have a high failure rate, due to factors such as incoming material consistency, equipment aging, and environmental factors. This results in poor sealing and product stability, and makes it difficult to verify if a seal is defective.

[0029] To do this, see Figures 1 to 3 The embodiment of the present application provides a container sealing structure 100, which can carry a liquid 30 inside. Specifically, the container sealing structure 100 can be a reagent bottle sealing structure, which can be applied to the field of gene sequencing and carries the reagents required for gene sequencing inside, but is not limited to this. The container sealing structure 100 includes: a container 10 and a cover body 20 that is sealed. The container 10 has a container mouth 1, and the container mouth 1 has an external thread 11. The cover body 20 includes a top wall 3 and a side wall 4 provided on the outer periphery of the top wall 3, the side wall 4 has an internal thread 41 that cooperates with the external thread 11, the top wall 3 has a through hole 5, and a sealing film 6 is provided at the through hole 5. The sealing film 6 is sealed to the top wall 3 around the through hole 5. The surface of the top wall 3 facing the container 10 is provided with a sealing retainer 7, and the sealing retainer 7 is located between the through hole 5 and the side wall 4. The sealing retainer 7 can extend into the container mouth 1 and fit with the inner wall 12 of the container mouth 1.

[0030] The container sealing structure 100 of this embodiment pre-seals the sealing membrane 6 with the lid 20 through the structural design of the lid 20. After the container 10 is filled with liquid 30, the lid 20 can be directly placed on the container mouth 1 of the container 10. The side wall 4 is threadedly connected to the container mouth 1, and the sealing ring 7 is in contact with the inner wall 12 of the container mouth 1, thereby achieving a seal between the lid 20 and the container 10. When it is necessary to draw liquid from the container 10, the liquid collection needle 40 can be used to pierce the sealing membrane 6 and extend into the container 10 to collect the liquid. This container sealing structure 100 eliminates the need for traditional magnetic film sealing processes, simplifies the operational difficulty of the filling process, improves sealing performance, and simultaneously increases product yield and production efficiency.

[0031] like Figure 1 and Figure 2As shown, the container 10 includes a container body 2, which encloses a accommodating cavity 21 with an open end. The accommodating cavity 21 can carry a liquid 30 (such as a reagent required for a biochemical reaction), and the container mouth 1 is connected to the opening of the container body 2 and communicates with the accommodating cavity 21.

[0032] In some embodiments, the container 10 may be a bottle-shaped container, for example, a reagent bottle.

[0033] According to the required volume of the container 10, the container 10 can have multiple models. It can be understood that for the multiple models of the container 10, the container mouth 1 can have approximately the same size to facilitate adaptation with the cover body 20, reduce the size types of the cover body 20, and improve the adaptability of the cover body 20.

[0034] In some embodiments, the container 10 may be made of glass or plastic.

[0035] Please refer again Figures 1 to 3 The top wall 3 includes a first surface 31 and a second surface 32 that are opposite to each other, the second surface 32 is arranged close to the container 10, and the through hole 5 passes through the first surface 31 and the second surface 32.

[0036] In some embodiments, the cover body 20 is substantially a circular cover, and the through hole 5 is substantially located in the middle of the top wall 3 .

[0037] In some embodiments, the side wall 4 and the top wall 3 are an integral structure. Specifically, the edge of the top wall 3 extends toward one side of the container 10 to form the side wall 4 , and the internal thread 41 is formed on the inner wall of the side wall 4 .

[0038] The sealing film 6 and the top wall 3 can be connected as one body by hot-melt, and the sealing film 6 and the cover 20 are an integrated structure, which can effectively improve the connection stability and sealing performance of the sealing film 6 and the cover 20. Specifically, the cover 20 can be formed by injection molding.

[0039] In some embodiments, the material of the top wall 3 can be plastic, and the top wall 3 around the through hole 5 can be melted by heating, thereby achieving hot-melt bonding with the sealing film 6 .

[0040] The sealing film 6 needs to seal the through-hole 5 in the lid 20 while also being easily punctured by the liquid collection needle. This places certain demands on the material and thickness of the sealing film 6. In some embodiments, the sealing film 6 can be made of aluminum foil. By heating the sealing film 6, the heat is transferred to the top wall 3 in contact with the sealing film 6, causing the top wall 3 to partially melt, thereby bonding the sealing film 6 to the top wall 3. In other embodiments, the sealing film 6 can be made of plastic or rubber, for example, a plastic film or a rubber film.

[0041] It is understandable that in other embodiments, the sealing film 6 can also be connected to the top wall 3 by heat melting during the molding process of the cover body 20.

[0042] In some embodiments, the sealing film 6 can be located on the first surface 31 of the top wall 3, making it easier to heat-seal the outer surface of the top wall 3 to connect the sealing film 6. It is understood that the sealing film 6 can also be located on the second surface 32 of the top wall 3, with the second surface 32 located inside the cover 20. Encapsulating the sealing film 6 inside the cover 20 can reduce the risk of the sealing film 6 being accidentally detached or punctured due to scratches during storage and transportation.

[0043] See also Figure 4 and Figure 5 , and refer to Figure 1 and Figure 3 The sealing ring 7 includes a connecting portion 71 and a guide portion 72. The connecting portion 71 is connected to the top wall 3, and the guide portion 72 is located at the end of the connecting portion 71 away from the top wall 3. Specifically, the connecting portion 71 of the sealing ring 7 is connected to the second surface 32 of the top wall 3. The outer diameter L2 of the guide portion 72 decreases gradually along the direction a away from the top wall 3, so that the surface of the guide portion 72 facing the side wall 4 forms an inclined surface 74. The maximum outer diameter of the guide portion 72 is less than or equal to the inner diameter of the container mouth 1, and the maximum outer diameter L1 of the connecting portion 71 is greater than the inner diameter of the container mouth 1. When closing the cover body 20, the sealing ring 7 needs to fit with the inner wall 12 of the container mouth 1 to achieve sealing. At this time, the maximum outer diameter L1 of the fitting portion 71 of the sealing ring 7 needs to be slightly larger than the inner diameter of the container mouth 1, so that the sealing ring 7 can squeeze the inner wall 12 of the container mouth 1 to achieve a tight fit, and a guide portion 72 is provided at the end of the fitting portion 71, and the outer surface of the guide portion 72 forms an inclined surface 74, which can facilitate the fitting portion 71 to smoothly extend into the interior of the container mouth 1.

[0044] In some embodiments, the surface of the fitting portion 71 close to the side wall 4 is convex toward the side of the side wall 4 to form an arcuate surface 73. At this time, the outer diameter of the fitting portion 71 is not uniform, and the extrusion pressure on the inner wall 12 of the container mouth 1 is also gradual. The most protruding part of the arcuate surface 73 has the largest outer diameter and the largest extrusion pressure on the inner wall 12 of the container mouth 1, while the extrusion pressure on the inner wall 12 of the other parts of the fitting portion 71 is appropriately reduced. Under the premise of ensuring close fit and sealing, the fitting portion 71 can be easily extended into the container mouth 1, thereby reducing the difficulty of covering the cover body 20 on the container mouth 1 and improving the adaptability of the cover body 20 to the container mouth 1.

[0045] It is understandable that in other embodiments, the cross-section of the fitting portion (not shown) can also be a rectangular structure, and the outer diameter of the fitting portion with a rectangular cross-section is slightly larger than the inner diameter of the container mouth 1, thereby achieving sealing between the sealing ring and the container mouth 1.

[0046] It can also be understood that in other embodiments, the surface of the fitting portion close to the side wall 4 can also be wavy or have other special-shaped structures, so that the sealing ring can form multiple tight fitting points with the inner wall of the container mouth 1 to improve the tightness of the fitting between the sealing ring and the inner wall 12 of the container mouth 1, thereby improving the sealing performance.

[0047] In some embodiments, the inclined surface 74 is a curved surface, and the arcuate surface 73 smoothly transitions to the inclined surface 74. The inclined surface 74 is a curved surface and smoothly transitions to the arcuate surface 73, which can further improve the smoothness of the sealing ring 7 extending into the container mouth 1.

[0048] In some embodiments, the sealing ring 7 is made of elastic material. After being inserted into the container mouth 1, the elastic sealing ring 7 can be deformed under the extrusion of the inner wall 12, thereby achieving an interference fit with the inner wall 12, making the fit tighter and improving the sealing performance.

[0049] In some embodiments, the sealing ring 7 and the top wall 3 are an integral structure, for example, they can be obtained by integral molding, which can further improve the sealing performance.

[0050] Please refer to Figure 6 A connecting groove 8 is formed between the sealing ring 7 and the side wall 4. A sealing rubber gasket 9 is provided at the bottom of the connecting groove 8 near the top wall 3. When the side wall of the container mouth 1 extends into the connecting groove 8, the end thereof can abut against the sealing rubber gasket 9, further improving the sealing between the lid 20 and the container 10.

[0051] In some embodiments, the sealing rubber pad 9 and the sealing retaining ring 7 are an integrated structure.

[0052] During use, liquid 30 (e.g., sequencing reagent material) is first filled into the container 10. The lid 20 is then directly placed on the container opening 1 of the container 10, and the internal thread 41 and external thread 11 are tightened. During the tightening process, the sealing ring 7 of the lid 20 extends into the interior of the container opening 1 and fits tightly against the inner wall 12 of the container opening 1. Finally, the lid 20 is placed on the container opening 1 of the container 10, sealing the container 10. When the container sealing structure 100 is applied to a gene sequencer, during use of the sequencer, the liquid extraction needle 40 pierces the sealing membrane 6 on the lid 20 and further extends into the container 10 to extract the liquid 30 in the container 10 for use by the sequencer.

[0053] Specifically, the lid 20 is sealed by pre-heat-sealably attaching a sealing film 6 to the lid 20. The container 10 is sealed by tightening the lid 20 against the container opening 1. During tightening, the sealing ring 7 within the lid 20 enters the container opening 1 and fits tightly against the inner wall 12, achieving a primary seal. Furthermore, during tightening, the lid 20 and the container opening 1 engage tightly through the threads, achieving a secondary seal, ultimately completing the assembly and sealing of the entire container 10.

[0054] The container sealing structure 100 of the embodiment of the present application, through the structural design of the cover body 20, pre-sets the sealing film 6 on the cover body 20, and the cover body 20 is connected to the container mouth 1 by a threaded connection, and a sealing retaining ring 7 is provided on the cover body 20, which can realize the self-sealing function when the container 10 is closed, thereby achieving rapid filling, simple assembly, and efficient sealing during the production process, improving production efficiency and the reliability of the reagent bottle seal, and reducing the film sealing process during the liquid 30 filling process, reducing the sealing difficulty and equipment cost of the filling process, and improving economic benefits. In addition, the container sealing structure 100 has a simple structure and the cover body 20 is highly compatible. It can adapt to different types of containers 10, improving the stability and success rate of the production, storage and transportation of liquid 30 products.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not intended to limit the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. A container sealing structure, characterized in that: include: A container having a container mouth with external threads; and The cover body includes a top wall and a side wall arranged at the periphery of the top wall, the side wall has an internal thread that cooperates with the external thread, the top wall has a through hole, a sealing film is provided at the through hole, the sealing film is sealedly connected to the top wall at the periphery of the through hole, and a sealing ring is provided on the surface of the top wall facing the container, the sealing ring is located between the through hole and the side wall, and the sealing ring can extend into the container mouth and fit with the inner wall of the container mouth.

2. The container sealing structure according to claim 1, wherein: The sealing retaining ring includes a fitting portion and a guide portion that are connected to each other, the fitting portion is connected to the top wall, and the guide portion is located at the end of the fitting portion away from the top wall. The outer diameter of the guide portion decreases successively in the direction away from the top wall, so that the surface of the guide portion facing the side wall forms an inclined surface, the maximum outer diameter of the guide portion is less than or equal to the inner diameter of the container mouth, and the maximum outer diameter of the fitting portion is greater than the inner diameter of the container mouth.

3. The container sealing structure according to claim 2, wherein: The surface of the fitting portion close to the side wall is convex toward one side of the side wall to form an arc-shaped surface, or the surface of the fitting portion facing the side wall is wavy.

4. The container sealing structure according to claim 3, wherein: The inclined surface is a curved surface, and the arcuate surface and the inclined surface are smoothly transitioned.

5. The container sealing structure according to claim 1, wherein: The sealing ring is made of elastic material.

6. The container sealing structure according to claim 1, wherein: The sealing retaining ring and the top wall are an integrated structure.

7. The container sealing structure according to claim 1, wherein: A connecting groove is formed between the sealing retaining ring and the side wall, and a sealing rubber gasket is provided at the bottom of the connecting groove close to the top wall.

8. The container sealing structure according to claim 1, wherein: The sealing film and the top wall are connected as one body by hot melting.

9. The container sealing structure according to claim 8, wherein: The sealing film is made of aluminum foil, plastic or rubber.

10. The container sealing structure according to claim 8, wherein: The sealing film is located on a surface of the top wall away from the container, or the sealing film is located on a surface of the top wall close to the container.

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