A sealing structure and a container

By combining the sealing ring seat, the mating platform, and the cover plate, along with the elastic connector and the ring sealing airbag, the contradiction between tightening and disassembling the container sealing structure is resolved, enabling a convenient sealing and disassembly process and improving the sealing effect and structural stability.

CN224546865UActive Publication Date: 2026-07-24SHANGHAI SHAN RONG PLASTIC TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI SHAN RONG PLASTIC TECH
Filing Date
2025-08-28
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

There is a contradiction between the sealing effect of existing container sealing structures when tightening and the difficulty of disassembly. This is especially true for users with weak strength or containers with worn threads after long-term use, which are difficult to disassemble and may even cause damage to components.

Method used

It adopts a combination structure of sealing ring seat, abutment platform and cover plate. The cover plate and abutment platform are detachably connected by elastic connector. The limit ring and chamfer design facilitate installation and disassembly. A ring sealing airbag is set in the sealing ring seat to enhance the sealing effect.

Benefits of technology

This approach simplifies the disassembly process of the sealing structure while ensuring a good seal, reducing the difficulty of disassembly and enhancing the stability and sealing performance of the structure.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a sealing structure and a container, relates to the technical field of container sealing, and comprises a sealing ring seat, an abutting table and a cover plate, the sealing ring seat is fixedly arranged at a bottle mouth of the container, the cover plate and the abutting table are connected through elastic connecting pieces, a sealing step surface is formed in the sealing ring seat, a locking groove is arranged in the sealing ring seat, and a fixing piece is slidably arranged on the cover plate. The cover plate is placed into the sealing ring seat, the cover plate drives the abutting table into the sealing ring seat through the elastic connecting pieces, the fixing piece on the cover plate is slidably clamped in the locking groove of the sealing ring seat, and then the cover plate is fixed, at this time, the cover plate drives the abutting table to abut against the sealing step surface of the sealing ring seat through the elastic connecting pieces, so that the container is sealed; the fixing piece is slid out of the locking groove, the fixing of the cover plate is released, the cover plate drives the abutting table to move out of the sealing ring seat through the elastic connecting pieces, and the sealing structure can be quickly disassembled.
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Description

Technical Field

[0001] This application relates to the field of container sealing technology, and in particular to a sealing structure and container. Background Technology

[0002] Most modern containers have a sealing structure at the bottle neck, which is locked in place by threads. The sealing effect of the sealing structure is directly related to how tightly it is screwed on: the tighter it is screwed on, the more closely the sealing surfaces fit together, the lower the risk of external infiltration or internal leakage, and the better the sealing performance.

[0003] However, this design has an inherent contradiction: while the tightness of the sealing structure is increased, the interlocking friction between the threads also increases, resulting in greater resistance to overcome during disassembly and a significant increase in the difficulty of opening. This is especially true for users with weak strength or containers with worn threads after long-term use, where disassembly will be more difficult and may even cause damage to the components. Utility Model Content

[0004] To ensure the sealing effect of the container while facilitating the disassembly of the sealing structure, this application provides a sealing structure and a container.

[0005] Firstly, the sealing structure provided in this application adopts the following technical solution:

[0006] A sealing structure includes a sealing ring seat, an abutment platform, and a cover plate. The sealing ring seat is fixedly disposed at the mouth of a container. The cover plate and the abutment platform are connected by an elastic connector. A sealing step surface is formed inside the sealing ring seat. The abutment platform abuts against the sealing step surface. A locking groove is provided inside the sealing ring seat. A fixing member is slidably disposed on the cover plate. The end of the fixing member is engaged in the locking groove.

[0007] By adopting the above technical solution, when sealing the container, the cover plate is placed inside the sealing ring seat. The cover plate, through the elastic connector, drives the abutment into the sealing ring seat. The fixing member on the cover plate slides and engages in the locking groove of the sealing ring seat, thereby fixing the cover plate. At this time, the cover plate, through the elastic connector, presses the abutment against the sealing step surface of the sealing ring seat, thereby sealing the container. When disassembling the container, the fixing member is slid out of the locking groove, which releases the fixing of the cover plate. The cover plate, through the elastic connector, drives the abutment to move out of the sealing ring seat, allowing the sealing structure to be quickly disassembled.

[0008] Preferably, the elastic connector includes a bolt, a nut, and a first elastic element. The nut is fixedly disposed within the abutment platform, the first elastic element is disposed between the cover plate and the abutment platform, the bolt passes through the cover plate and the first elastic element, and the end of the bolt is connected to the nut.

[0009] By adopting the above technical solution, bolts and nuts are connected to connect the cover plate and the abutment platform. After the cover plate is fixed in the sealing ring seat, the first elastic element applies elastic force to the abutment platform, so that the abutment platform can abut against the sealing step surface.

[0010] Preferably, the cover plate is provided with a support block, and the end of the bolt away from the nut slides against the support block.

[0011] By adopting the above technical solution, the support block enhances the structural strength of the cover plate at the bolt location, making the cover plate less prone to deformation.

[0012] Preferably, the cover plate is provided with a slide block, the fixing member includes a pressing part and a snap-fit ​​part, the slide block has a sliding groove, the pressing part is slidably disposed in the sliding groove, the slide block is provided with a second elastic member, the second elastic member abuts against the pressing part and pushes part of the pressing part out of the slide block, the snap-fit ​​part is fixedly disposed on the side of the pressing part away from the second elastic member, and the end of the snap-fit ​​part away from the pressing part is snapped into the locking groove.

[0013] By adopting the above technical solution, the second elastic element drives the locking part to move through the pressing part. When the end of the locking part moves into the locking groove, the cover plate can be fixed. Pushing the pressing part into the slide block moves the pressing part and drives the locking part to move. When the end of the locking part moves out of the locking groove, the fixation of the cover plate can be quickly released.

[0014] Preferably, the slide block has a limiting groove communicating with the slide channel, and the side wall of the pressing part is provided with a limiting block, which is slidably disposed in the limiting groove.

[0015] By adopting the above technical solution, the limiting block slides in the limiting groove, thereby limiting the pressing part and preventing the pressing part from sliding out of the slide.

[0016] Preferably, a limiting ring is provided on the outer side wall of the cover plate, the snap-fit ​​portion slides through the limiting ring, and the limiting ring is located inside the sealing ring seat.

[0017] By adopting the above technical solution, the limiting ring limits the sliding of the locking part, making the sliding of the locking part more stable. At the same time, during the process of the cover plate being picked up and put down in the sealing ring seat, the limiting ring guides the movement of the cover plate, thereby facilitating the smooth picking up and putting down of the cover plate.

[0018] Preferably, the bottom of the snap-fit ​​portion away from the pressing portion has a chamfer.

[0019] By adopting the above technical solution, during the process of installing the cover plate into the sealing ring seat, the snap-fit ​​part drives the pressing part to move automatically into the slide seat under the action of the chamfer, thereby facilitating the installation of the cover plate.

[0020] Preferably, an annular sealing airbag is provided inside the sealing ring seat on the sealing step surface. The annular sealing airbag forms a first chamber and a second chamber that are connected. When the abutting platform presses against the sealing step surface, the abutting platform squeezes the annular sealing airbag and makes the first chamber and the second chamber form a high-pressure first sealing cavity and a high-pressure second sealing cavity. The first sealing cavity and the second sealing cavity push the annular sealing airbag to press against the abutting platform and seal it.

[0021] By adopting the above technical solution, after the mating platform is pressed against the sealing step surface, the first sealing cavity and the second sealing cavity push the annular sealing airbag to press against the mating platform, thereby increasing the sealing effect of the mating platform.

[0022] Preferably, the upper and lower sides of the annular airbag are respectively provided with a first connecting ring piece and a second connecting ring piece. The first connecting ring piece is inserted into the side wall of the sealing ring seat located in the locking groove, and the second connecting ring piece is inserted into the sealing step surface of the sealing ring seat.

[0023] By adopting the above technical solution, the ring-sealing airbag is installed in the sealing ring seat using the first connecting ring piece and the second connecting ring piece, which facilitates the quick assembly and disassembly of the ring-sealing airbag.

[0024] Secondly, the container provided in this application adopts the following technical solution:

[0025] A container includes the sealing structure described above, and also includes a bottle body, wherein the sealing structure is disposed at the bottle opening of the bottle body.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. When sealing a container using a sealing ring seat, abutment platform, and cover plate, the cover plate is placed inside the sealing ring seat. The cover plate, through an elastic connector, moves the abutment platform into the sealing ring seat. The fixing member on the cover plate slides and engages in the locking groove of the sealing ring seat, thus fixing the cover plate. At this time, the cover plate, through the elastic connector, presses the abutment platform against the sealing step surface of the sealing ring seat, thereby sealing the container. When disassembling the container, the fixing member is slid out of the locking groove to release the fixing of the cover plate. The cover plate, through the elastic connector, moves the abutment platform out of the sealing ring seat, allowing for quick disassembly of the sealing structure.

[0028] 2. The sliding of the locking part is limited by the limiting ring, making the sliding of the locking part more stable. At the same time, during the process of the cover plate being picked up and put down in the sealing ring seat, the limiting ring guides the movement of the cover plate, thus facilitating the smooth picking up and putting down of the cover plate.

[0029] 3. During the process of installing the cover plate into the sealing ring seat by chamfering, the snap-fit ​​part drives the pressing part to move automatically into the slide seat under the action of chamfering, thereby facilitating the installation of the cover plate. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of the sealing structure in Embodiment 1 of this application;

[0031] Figure 2 This is an exploded view of the overall structure of the sealing structure in Embodiment 1 of this application;

[0032] Figure 3 This is a cross-sectional view of the overall structure of the sealing structure in Embodiment 1 of this application, to highlight the fastener;

[0033] Figure 4 This is a cross-sectional view of the overall structure of the sealing structure in Embodiment 1 of this application, to highlight the limiting block;

[0034] Figure 5 This is a cross-sectional view of the overall structure of the sealing structure in Embodiment 1 of this application, to highlight the elastic connector;

[0035] Figure 6 This is a partial structural cross-sectional view of the sealing structure in Embodiment 2 of this application, to highlight the uncompressed state of the annular sealing airbag;

[0036] Figure 7 This is a partial structural cross-sectional view of the sealing structure in Embodiment 2 of this application, to highlight the compressed state of the annular airbag.

[0037] Reference numerals: 1. Sealing ring seat; 2. Abutment platform; 3. Cover plate; 4. Elastic connector; 41. Bolt; 42. Nut; 43. First elastic element; 5. Sealing step surface; 6. Locking groove; 7. Fixing element; 71. Pressing part; 72. Snap-fit ​​part; 8. Support block; 9. Slide seat; 10. Slide groove; 11. Second elastic element; 12. Limiting block; 13. Limiting groove; 14. Limiting ring; 15. Chamfer; 16. Ring sealing airbag; 17. First connecting ring piece; 18. Second connecting ring piece; 19. First chamber; 20. Second chamber; 21. First sealing chamber; 22. Second sealing chamber; 23. Air injection hole; 24. Plug; 25. One-way valve. Detailed Implementation

[0038] The following is in conjunction with the appendix Figures 1-7 This application will be described in further detail.

[0039] Example 1:

[0040] This application discloses a sealing structure.

[0041] Reference Figure 1 and Figure 2A sealing structure includes a sealing ring seat 1, an abutment platform 2, and a cover plate 3. The sealing ring seat 1 is fixedly installed at the opening of a container. Both the abutment platform 2 and the cover plate 3 are circular. Three fixing members 7 are slidably installed on the cover plate 3 at equal intervals along its circumference. The cover plate 3 is detachably installed inside the sealing ring seat 1 via the three fixing members 7. The abutment platform 2 and the cover plate 3 are connected by three elastic connecting members 4, which are evenly distributed along the circumference of the abutment platform 2. The abutment platform 2 is located below the cover plate 3. The cover plate 3, through the elastic connecting members 4, drives the abutment platform 2 to be detachably installed inside the sealing ring seat 1, and the abutment platform 2 seals the sealing ring seat 1.

[0042] Reference Figure 2 , Figure 3 and Figure 4 The fixing member 7 includes an integrally formed pressing part 71 and a snap-fit ​​part 72. A slide 9 is fixedly installed in the middle of the top wall of the cover plate 3. Three sliding grooves 10 are equally spaced along the circumference of the cover plate 3 inside the slide 9. The three pressing parts 71 are slidably installed in the three sliding grooves 10. A second elastic member 11 is installed in each of the three sliding grooves 10 of the slide 9. The ends of the three second elastic members 11 respectively abut against the three pressing parts 71.

[0043] Limiting blocks 12 are fixedly installed on both sides of the pressing part 71 along its sliding direction perpendicular to itself. Limiting grooves 13 are formed on both sides of each sliding groove 10 in the slide base 9, and the two limiting blocks 12 are slidably installed in the two limiting grooves 13. The second elastic member 11 pushes the pressing part 71 to slide away from the slide base 9, and the pressing part 71 drives the limiting blocks 12 to slide in the limiting grooves 13. The limiting blocks 12 and the limiting grooves 13 limit the movement of the pressing part 71, so that the pressing part 71 stops moving after partially sliding out of the slide base 9.

[0044] The snap-fit ​​portion 72 is fixedly installed on the bottom side wall of the pressing portion 71 away from the second elastic member 11. The thickness of the snap-fit ​​portion 72 is less than the thickness of the pressing portion 71, and a chamfer 15 is formed at the bottom of the end of the snap-fit ​​portion 72 away from the pressing portion 71. A limit ring 14 is fixedly installed on the outer side wall of the cover plate 3 along its own direction, and the three snap-fit ​​portions 72 slide through the limit ring 14. The pressing portion 71 drives the snap-fit ​​portion 72 to move, and the limit ring 14 guides the movement of the snap-fit ​​portion 72, making the movement of the snap-fit ​​portion 72 more stable. An annular locking groove 6 is formed in the sealing ring seat 1. The second elastic member 11 pushes the snap-fit ​​portion 72 to move through the pressing portion 71, and the end of the snap-fit ​​portion 72 away from the pressing portion 71 is snapped into the locking groove 6.

[0045] Reference Figure 2 and 5The elastic connector 4 includes a bolt 41, a nut 42 and a first elastic element 43. Three support blocks 8 are fixedly installed at equal intervals along the circumference of the top wall of the cover plate 3. Through holes are opened in the support blocks 8 and the cover plate 3. The bolt 41 is installed in the through holes, and the bolt head of the bolt 41 is located above the support block 8.

[0046] Nut 42 is fixedly installed on the top wall of the abutment platform 2 near the cover plate 3, and the bottom ends of the three bolts 41 are threaded into the three nuts 42 respectively. Three first elastic elements 43 are respectively sleeved on the three bolts 41, and the upper and lower ends of the first elastic elements 43 abut against the cover plate 3 and the nuts 42 respectively. In this application, the first elastic elements 43 can be selected as springs. The sealing ring seat 1 is located at the bottom of the locking groove 6 and has a sealing step surface 5. When the cover plate 3 is installed in the sealing ring seat 1, the cover plate 3 drives the abutment platform 2 to press against the sealing step surface 5, thereby sealing the sealing ring seat 1.

[0047] The principle of the sealing structure in this embodiment is as follows: When sealing the container, the cover plate 3 is inserted into the sealing ring seat 1, and the cover plate 3 is moved downward. The cover plate 3 drives the abutment platform 2 to enter the sealing ring seat 1 first, and then the limiting ring 14 enters the sealing ring seat 1. When the chamfer 15 of the snap-fit ​​part 72 contacts the sealing ring seat 1, under the action of the chamfer 15, the sealing ring seat 1 can push the pressing part 71 to move into the slide seat 9 through the snap-fit ​​part 72, and the pressing part 71 squeezes the second elastic member 11. When the cover plate 3 drives the abutment platform 2 to contact the sealing step surface 5, the abutment platform 2 stops moving. As the cover plate 3 continues to move downward, the cover plate 3 drives the first elastic member 43 to contract and deform, so that the elastic force of the first elastic member 43 gradually increases. The first elastic member 43 then acts on the abutment platform 2, making the sealing effect of the abutment platform 2 better. When the cover plate 3 lowers the locking part 72 to the locking groove 6, the second elastic member 11 moves the locking part 72 through the pressing part 71. The end of the locking part 72 moves into the locking groove 6, and the elastic member of the first elastic member 43 is then transmitted to the locking part 72 through the cover plate 3, so that the locking part 72 can be locked in the locking groove 6, thereby fixing the cover plate 3 and completing the sealing of the container.

[0048] When unsealing the container, press the three pressing parts 71 simultaneously. The three pressing parts 71 drive the three locking parts 72 to move towards the slide 9. When the end of the locking part 72 moves out of the locking groove 6, the first elastic element 43 releases elastic potential energy and pushes the cover plate 3 to slide upward, so that the cover plate 3 can be removed from the sealing ring seat 1. The cover plate 3 then drives the abutment platform 2 to move out of the sealing ring seat 1, thereby completing the unsealing of the container.

[0049] Example 2:

[0050] Reference Figure 6 and Figure 7The difference between this embodiment and Embodiment 1 is that an annular sealing airbag 16 is installed inside the sealing ring seat 1, and a first chamber 19 and a second chamber 20 are formed inside the annular sealing airbag 16. The first chamber 19 is located below the abutment platform 2, and the second chamber 20 is located to the side of the abutment platform 2.

[0051] The upper and lower sides of the annular airbag 16 are respectively fixedly installed with a first connecting ring 17 and a second connecting ring 18, both of which are soft rings. The first connecting ring 17 is detachably inserted into the side wall of the sealing ring seat 1 located in the locking groove 6, and the second connecting ring 18 is detachably inserted into the sealing step surface 5 of the sealing ring seat 1.

[0052] An air injection hole 23 is provided in the side wall of the sealing ring seat 1. The air injection hole 23 communicates with the second chamber 20, and the air pump can inject air into the annular sealing airbag 16 through the air injection hole 23. A plug 24 is detachably installed at the end of the sealing ring seat 1 located at the air injection hole 23. A one-way valve 25 is installed in the sealing ring seat 1 located inside the air injection hole 23. After the annular sealing airbag 16 is filled with air, the plug 24 is used to seal the air injection hole 23.

[0053] When the abutting platform 2 moves to press against the sealing step 5, it compresses the annular sealing airbag 16. At this time, the volume of the first chamber 19 and the second chamber 20 decreases. The first chamber 19 transforms into a high-pressure first sealing chamber 21, and the second chamber 20 transforms into a high-pressure second sealing chamber 22. The first sealing chamber 21 and the second sealing chamber 22 act on the annular sealing airbag 16, causing the annular sealing airbag 16 to press against the abutting platform 2, thereby further improving the sealing effect of the abutting platform 2.

[0054] The implementation principle of Example 2 is as follows: When the abutting platform 2 presses against the sealing step surface 5, the abutting platform 2 compresses the annular sealing airbag 16 and forms a high-pressure first sealing cavity 21 and a high-pressure second sealing cavity 22 in the first chamber 19 and the second chamber 20. During transportation or movement of the container, the material inside the container may shake and impact the abutting platform 2, causing the abutting platform 2 to move and separate from the sealing step surface 5, which can easily lead to leakage. However, with the addition of the annular sealing airbag 16, when the abutting platform 2 moves, the high-pressure gas in the first sealing cavity 21 and the second sealing cavity 22 pushes the annular sealing airbag 16 against the moving abutting platform 2, thereby increasing the sealing effect of the abutting platform 2.

[0055] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A sealing structure, characterized in that: The container includes a sealing ring seat (1), an abutment platform (2), and a cover plate (3). The sealing ring seat (1) is fixedly installed at the mouth of the container. The cover plate (3) and the abutment platform (2) are connected by an elastic connector (4). A sealing step surface (5) is formed in the sealing ring seat (1). The abutment platform (2) abuts against the sealing step surface (5). A locking groove (6) is provided in the sealing ring seat (1). A fixing member (7) is slidably installed on the cover plate (3). The end of the fixing member (7) is engaged in the locking groove (6).

2. The sealing structure according to claim 1, characterized in that: The elastic connector (4) includes a bolt (41), a nut (42) and a first elastic element (43). The nut (42) is fixedly disposed inside the abutment platform (2). The first elastic element (43) is disposed between the cover plate (3) and the abutment platform (2). The bolt (41) passes through the cover plate (3) and the first elastic element (43). The end of the bolt (41) is connected to the nut (42).

3. The sealing structure according to claim 2, characterized in that: A support block (8) is provided on the cover plate (3), and the end of the bolt (41) away from the nut (42) slides against the support block (8).

4. The sealing structure according to claim 1, characterized in that: The cover plate (3) is provided with a slide (9), the fixing member (7) includes a pressing part (71) and a snap-fit ​​part (72), the slide (9) is provided with a sliding groove (10), the pressing part (71) is slidably disposed in the sliding groove (10), the slide (9) is provided with a second elastic member (11), the second elastic member (11) abuts against the pressing part (71) and pushes part of the pressing part (71) out of the slide (9), the snap-fit ​​part (72) is fixedly disposed on the side of the pressing part (71) away from the second elastic member (11), and the end of the snap-fit ​​part (72) away from the pressing part (71) is snapped into the locking groove (6).

5. A sealing structure according to claim 4, characterized in that: The slide (9) has a limiting groove (13) that communicates with the slide groove (10), and a limiting block (12) is provided on the side wall of the pressing part (71). The limiting block (12) is slidably disposed in the limiting groove (13).

6. A sealing structure according to claim 4, characterized in that: A limiting ring (14) is provided on the outer side wall of the cover plate (3), and the snap-fit ​​part (72) slides through the limiting ring (14). The limiting ring (14) is located inside the sealing ring seat (1).

7. A sealing structure according to claim 4, characterized in that: The bottom of the snap-fit ​​portion (72) away from the pressing portion (71) has a chamfer (15).

8. A sealing structure according to claim 1, characterized in that: An annular sealing airbag (16) is provided inside the sealing ring seat (1) on the sealing step surface (5). The annular sealing airbag (16) has a first chamber (19) and a second chamber (20) that are connected. When the abutting platform (2) abuts against the sealing step surface (5), the abutting platform (2) squeezes the annular sealing airbag (16) and makes the first chamber (19) and the second chamber (20) form a high-pressure first sealing cavity (21) and a second sealing cavity (22). The first sealing cavity (21) and the second sealing cavity (22) push the annular sealing airbag (16) to abut against the abutting platform (2) and seal it.

9. A sealing structure according to claim 8, characterized in that: The upper and lower sides of the ring-sealed airbag (16) are respectively provided with a first connecting ring piece (17) and a second connecting ring piece (18). The first connecting ring piece (17) is inserted into the side wall of the sealing ring seat (1) located in the locking groove (6), and the second connecting ring piece (18) is inserted into the sealing step surface (5) of the sealing ring seat (1).

10. A container, characterized in that: The sealing structure includes any one of claims 1-9, and further includes a bottle body, wherein the sealing structure is disposed at the bottle mouth of the bottle body.