Container sealing structure applying L-shaped and J-shaped lock catch structures

By designing an 'L' and 'J' shaped locking structure, combined with deformable materials and simple molds, the high cost and instability of the sealing structure of packaging containers are solved, achieving a low-cost, tight, and anti-counterfeiting sealing effect, and simplifying the mold making and production process.

CN121990265APending Publication Date: 2026-05-08SUOWEI PACKAGING TECH (SHANGHAI) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SUOWEI PACKAGING TECH (SHANGHAI) CO LTD
Filing Date
2026-04-03
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Existing packaging container sealing structures suffer from problems such as complex mold making, high cost, unstable sealing, easy wear and tear, and difficulty in meeting diverse market demands.

Method used

Employing 'L' and 'J' shaped locking structures, combined with deformable materials and a simple mold design, an 'L' and 'J' shaped blocking and fixing locking seal structure is formed. The seal can be destructively opened by tearing and breaking the seal through a tearing groove.

Benefits of technology

It enables low-cost mass production, tight sealing, prevention of media leakage, anti-counterfeiting function, simplified mold making, extended mold life, and clear differentiation after destructive opening, and is suitable for containers of various materials and shapes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The container sealing structure comprises a cup body assembly and a first cover body assembly or a second cover body assembly installed on the top of the cup body assembly, and the cup body assembly comprises a container containing body and an outer rolling model integrally formed on an upper opening of the container containing body; the first cover body assembly comprises a first cover body and a first extension integrally formed on the periphery of the first cover body, and a plurality of sets of independent L-shaped fixing lock catches are annularly arranged at the bottom of the first extension. Through the special design that the L-shaped fixing lock catch is integrally connected with the lower end of one side wall of the extension part and the J-shaped hanging buckle is specially designed and matched with a deformable material, a simple mold can be adopted for manufacturing, a transverse turnover groove can be designed or a contact surface close to an arc shape can be utilized, rapid and smooth demolding is achieved, the mold manufacturing cost is effectively reduced, and the service life of the mold is greatly prolonged; and the production cycle time of the product can be shortened.
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Description

Technical Field

[0001] This invention relates to the field of container sealing technology, and in particular to a container sealing structure that utilizes an "L" and "J" shaped locking mechanism. Background Technology

[0002] In the packaging container industry, achieving efficient sealing, convenient opening, and cost control has always been a key issue. Currently, common packaging containers on the market, such as cups, boxes, and cans, offer a variety of sealing methods, but most have certain limitations. Traditional sealing methods, such as threaded seals, can achieve a certain degree of sealing, but the molds are complex to manufacture, resulting in high production costs. Furthermore, the threads are prone to wear after repeated tightening, affecting the sealing effect and service life. Snap-on seals are relatively easy to open, but their seal stability is poor; they are susceptible to loosening and seal failure under external impact or vibration. As the market increasingly demands higher sealing performance, ease of use, and cost control for packaging containers, existing sealing structures are no longer sufficient to meet diverse market needs. Therefore, developing a new type of sealing structure packaging container that can be made with simple molds, mass-produced at low cost, quickly sealed, requires breaking the seal to open, can be repeatedly closed and reused, and is widely adaptable to containers of various materials and shapes is of great practical significance. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a container sealing structure that utilizes "L" and "J" shaped locking mechanisms.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A container sealing structure utilizing "L" and "J" shaped locking mechanisms includes a cup body assembly and a lid assembly one or lid assembly two mounted on its top. The cup body assembly includes a container body and an outwardly rolled shape integrally formed with an opening on the container body. The lid assembly one includes a lid body one and an outer extension one integrally formed around the lid body one. The bottom of the outer extension one is provided with multiple independent sets of "L" shaped fixing latches in a ring shape, and the "L" shaped fixing latches can be folded inward along the outer extension one. The "L" shaped fixing latches are designed with several vertical strip-shaped protrusions of a certain height on their outer side. The lid body one is used in conjunction with a clamping component one through the "L" shaped fixing latches to form an "L" shaped blocking and fixing locking sealing structure.

[0005] As a further embodiment of the present invention: the clamping component includes a clamping element and a tear-out groove that can be detachably installed on the periphery of the clamping element. The lower end of the clamping element is integrally formed with an undercut. The undercut and the vertical protrusion on the outer side of the "L"-shaped fixing buckle abut against each other, fixing and constraining the "L"-shaped fixing buckle to the lower edge of the opening of the matching container body of the lid.

[0006] As a further aspect of the present invention: the "L"-shaped fixing buckle is integrally connected to the lower end of the outer side enclosure with a transverse folding groove that can be folded inward.

[0007] As a further embodiment of the present invention: the cover assembly 2 includes a cover 2 and an outer extension 2 integrally formed on the periphery of the cover 2, and a plurality of independently distributed "J"-shaped hooks are provided around the side of the outer extension 2. The upper end of the "J"-shaped hook is integrally connected to the upper edge of the outer extension 2, and the two sides of the "J"-shaped hook are separate from the outer extension 2 and are not connected. The inner side of the lower end of the "J"-shaped hook fits the contact surface of the outward rolled shape in a near-arc shape. The cover 2 is used in conjunction with the clamping component 2 through the "J"-shaped hooks to form a "J"-shaped locking and sealing structure.

[0008] As a further embodiment of the present invention: the clamping component two includes a clamping member two and a tearing groove two disposed on the outer ring of the clamping member two, and the lower end of the clamping member two is designed with a ring of buckles two to prevent backing and to forcefully detach from the production mold. The clamping member two is tightly fitted from top to bottom on the outer side of the outer ring of the cover body two, and the cover body two is locked to the upper opening of the outward roll shape on the container body by the cooperation of the buckles two and the "J" shaped hook.

[0009] As a further aspect of the present invention: the inner side of the "J"-shaped hook is close to the arc-shaped contact surface, and the whole is made of a material that can deform to different degrees according to the thickness of different parts of the shape, which is compatible with the outward roll shape of the opening on the container body.

[0010] As a further aspect of the present invention, the shape of the container body includes, but is not limited to, a circle, a square, or a triangle.

[0011] As a further embodiment of the present invention: both the first and second cover bodies are provided with a destructible, foldable cover structure that matches their water outlets on their outer surfaces.

[0012] As a further embodiment of the present invention: a cover assembly 1 with a destructible folding and opening cover structure and a clamping assembly 1, and a cover assembly 2 and a clamping assembly 2 are pre-connected by a connecting strap to form a connecting body.

[0013] As a further aspect of the present invention: the first tearing groove and the second tearing groove are made of a material with tearable and brittle fracture properties.

[0014] Compared with the prior art, the present invention provides a container sealing structure using an "L" and "J" shaped locking structure, which has the following advantages: 1. The special design of the “L”-shaped fixing buckle and the lower end of the outer side panel, along with the “J”-shaped hook, combined with deformable materials, allows for easy mold making. It can also be designed with horizontal folding grooves or use near-arc-shaped contact surfaces to achieve quick and smooth demolding, effectively reducing mold manufacturing costs, greatly extending mold life, and shortening product production cycle time.

[0015] 2. The “L”-shaped fixing buckle cooperates with the first clamping component. The inverted buckle at the lower end of the clamping component abuts against the vertical protrusion on the outer side of the “L”-shaped fixing buckle, forming an “L”-shaped blocking and fixing buckle sealing structure. The “J”-shaped hook cooperates with the second clamping component. After the second clamping component is tightened, the “J”-shaped hook is firmly locked to the upper opening of the outward-rolled shape on the container body due to the fixing constraint of the second clamping component, forming a “J”-shaped locking and fixing sealing structure. Both structures can ensure a tight seal between the cap and the container body, preventing media leakage.

[0016] 3. Both sealing structures require the release of the clamping component's binding constraint on the cover by breaking the tearing groove on the outer side of the clamping component after the cover is closed. This opening method makes the opened state of the packaging container clearly different from its unopened state, which has anti-counterfeiting function and can effectively prevent the product from being reused or tampered with.

[0017] 4. Both the outer sides of cover body one and cover body two are equipped with a destructible folding cover structure that matches the water outlet. While fully retaining the original fastening structure and the destructible tear-and-open method, the protection function of the water outlet is added, which expands the applicability and practicality of the clamping component.

[0018] 5. By pre-connecting the cover assembly 1 with the clamping assembly 1 and the cover assembly 2 with the clamping assembly 2 using a connecting belt or other means, the number of components that originally needed to be manufactured separately is reduced, the production cost is lowered, the production cycle is shortened, and the time efficiency of product assembly is improved.

[0019] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This invention has a simple structure and is easy to operate. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the installation of a cover plate assembly for a container sealing structure using an "L" and "J" shaped locking structure, as proposed in this invention. Figure 2 This is a schematic diagram of the installation of a cover plate assembly 2 of a container sealing structure using an "L" and "J" shaped locking structure, as proposed in this invention. Figure 3 This is a schematic diagram of the installation of a cover assembly for a container sealing structure using an "L" and "J" shaped locking structure proposed in this invention; Figure 4 This is a cross-sectional view of a cover assembly for a container sealing structure using an "L" and "J" shaped locking mechanism, as proposed in this invention. Figure 5 Enlarged views of sections A, B, and C of a container sealing structure employing an "L" and "J" shaped locking mechanism proposed in this invention; Figure 6 This is a two-section view of a cover assembly for a container sealing structure using an "L" and "J" shaped locking structure proposed in this invention; Figure 7 This is an enlarged view of sections D, E, and F of a container sealing structure using "L" and "J" shaped locking mechanisms proposed in this invention.

[0021] In the diagram: Container body 1; Lid 1 2; Tear-out groove 1 3; Fastening component 1 4; Outer extension 1 5; "L" shaped fixing buckle 6; Lid 2 7; Tear-out groove 2 8; Fastening component 2 9; "J" shaped hook 10; Outer extension 2 11; Covering structure 12; Outer roll shape 13; Vertical strip protrusion 14; Inverted buckle 1 15; Inverted buckle 2 16. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0023] Example 1: A container sealing structure utilizing "L" and "J" shaped locking mechanisms, such as... Figure 1 , Figure 4 and Figure 5 As shown, the cup assembly includes a lid assembly 1 installed on the cup body assembly. The cup body assembly includes a container body 1 and an outwardly rolled shape 13 integrally formed on the container body 1 with an opening. The lid assembly 1 includes a lid body 2 and an outer extension 5 integrally formed on the periphery of the lid body 2. The bottom of the outer extension 5 is provided with multiple independent sets of "L"-shaped fixing buckles 6 of a certain width at an annular shape. The "L"-shaped fixing buckles 6 can be folded inward along the outer extension 5. The outer side of the "L"-shaped fixing buckles 6 is designed with several vertical strip-shaped protrusions 14 of a certain height. The container 1 is used to hold the medium. The shape of the container 1 includes, but is not limited to, circles, squares, and triangles. It is integrally connected to the lower end of the outer extension 5 side panel by an inwardly foldable "L"-shaped fixing buckle 6. This structural design allows for a very simple mold making structure, effectively reducing mold manufacturing costs, greatly extending mold life, and shortening product production cycle time. Only an inwardly foldable horizontal folding groove needs to be designed on the outer side of the connection with the outer extension 5 side panel to achieve the purpose of quick and smooth demolding. The cover body 2 is used in conjunction with the clamping component 1 through the "L"-shaped fixing buckle 6. When the clamping component 1 is installed and tightened from top to bottom on the outer side of the outer extension 5 of the cover body 2, the "L"-shaped fixing buckle 6 can be subjected to force when it comes into contact with the lower edge of the clamping component 1 by utilizing the extremely small assembly gap size designed to match the outer extension 5. This causes the "L"-shaped fixing buckle 6, which can be folded inward, to begin to fold inward, forming an "L"-shaped blocking fixing buckle sealing structure together with the side wall of the outer extension 5 of the cover body 2. The clamping component includes a clamping member 4 and a tearing groove 3 that can be detachably installed on the periphery of the clamping member 4, and the lower end of the clamping member 4 is integrally formed with an undercut 15. By having a ring of inverted buckle 15 at the lower end of the clamping member 4 designed to prevent backflow and forcefully disengage from the production mold, and the vertical protrusion 14 on the outer side of the "L"-shaped fixing buckle 6 abutting against each other, the "L"-shaped fixing buckle 6 is fixedly constrained at the lower edge of the outwardly rolled shape 13 of the opening on the container body 1 that matches the lid body 2. The "L"-shaped fixing buckle 6 and the outer extension 5 side wall of the lid body 2 together form an "L"-shaped abutting fixing buckle sealing structure. At this time, the lid body 2 can no longer be opened from the container body. Once the opening is opened, the "L"-shaped locking buckle 6 can only be released from its constrained state after the structure of the clamping component 1 is destroyed by breaking the tearing groove 3 with tearable and brittle characteristics designed on the outer side of the clamping component 1. That is, after the sealing structure of the "L"-shaped locking buckle is released, the cover 2 can be opened and removed from the opening of the container body 1. At this time, there is a clear difference between the damaged and opened state of the packaging container and its unopened state.

[0024] Example 2: A container sealing structure utilizing "L" and "J" shaped locking mechanisms, such as... Figure 2 , Figure 6 and Figure 7As shown, the cover assembly 1 is replaced with the cover assembly 2. The cover assembly 2 includes the cover 2 7 and the outer extension 2 11 integrally formed on the periphery of the cover 2 7. The outer extension 2 11 has multiple independently distributed "J"-shaped hooks 10 of a certain width around its side. The upper end of the "J"-shaped hook 10 is integrally connected to the upper edge of the outer extension 2 11. The two sides of the "J"-shaped hook 10 are separate from the outer extension 2 11 and are not connected. The inner side of the lower end of the "J"-shaped hook 10 is in contact with the outer rolled shape 13 in a shape that is close to an arc. The near-arc shape of the inner contact surface of the outer extension 11 is used to achieve quick and smooth demolding during mold making by utilizing this near-arc contact surface and using deformable materials. This effectively simplifies the mold making structure and reduces manufacturing costs, greatly extends the mold life, and shortens the product production cycle time. The cover body 2 7 has several independently designed "J"-shaped hooks 10 of a certain width around its side. Because the two sides of the "J"-shaped hooks 10 are separate from the cover body 2 7 and not connected, whether it is demolding during manufacturing or when the product is used on the lid container 1, the "J"-shaped hooks 10 can be easily deformed and separated from the mold from bottom to top by taking advantage of the near-arc-shaped contact surface of the inner side of the "J"-shaped hooks 10 and the material properties of the deformable material. When the lid 2 7 is closed onto the container 1 from top to bottom via the "J" shaped hook 10, it can be smoothly deformed and pass through the upper opening of the outward-curling shape 13 on the container 1, so that the inner side of the "J" shaped hook 10, which is close to the arc-shaped contact surface, is attached to the lower part of the upper opening of the outward-curling shape 13 on the container 1. The cover body 2 7 is used in conjunction with the clamping component 2 via a "J" shaped hook 10. The clamping component 2 includes a clamping part 2 9 and a tearing groove 2 8 set on the outer ring of the clamping part 2 9. The lower end of the clamping part 2 9 is designed with a ring of inverted buckle 2 16 to prevent backing and to forcefully disengage from the production mold. By tightening the clamping member 29 from top to bottom onto the outer perimeter 211 of the cover body 27, the upper end of the clamping member 29 is designed to seal the entire upper perimeter of the cover body 27. Its sides can be used with a very small installation gap to fit the outer wall of the cover body 27 and the outer side of the "J"-shaped hooks 10. Furthermore, the lower end of the clamping member 29 is designed with a ring of inverted buckles 216 to prevent backflow and allow for strong release from the production mold. Therefore, when the clamping member 29 is also tightened from top to bottom onto the perimeter of the cover body 27, the "J"-shaped hooks 10, which are independently designed with a certain width around the sides of the cover body 27, will firmly hold the cover body 27 together through the structural design of these "J"-shaped hooks 10 due to the fixing constraint of the clamping member 29. The lid 7 is locked to the upper opening of the outward-rolled shape 13 on the container body 1, forming a "J"-shaped locking and sealing structure. At this time, the lid 7 can no longer be opened from the upper opening of the container body 1. Only by destroying the fixing constraint structure of the clamping component 2 by using the tearing groove 2 8 with tearable and brittle characteristics designed on the outer side of the clamping component 2, can the fixing locking and sealing structure of these "J"-shaped hooks 10 be released from the constrained and fixed sealing state. Then, by using the deformable characteristics of the material selected for the lid 7, the lid 7 can be opened and removed from the upper opening of the container body 1. At this time, there is a clear difference between the destroyed and opened state of the packaging container and the unopened state.

[0025] Example 3: A container sealing structure utilizing "L" and "J" shaped locking mechanisms, such as... Figure 3 As shown, both the outer surfaces of the cover body 1 2 and the cover body 2 7 are provided with a destructible foldable cover structure 12 that matches their water outlets. While fully retaining the fastening structure and destructible tear-and-open method when the cover body assembly 1 and the cover body assembly 2 are closed with the matching container 1, the function of the destructible foldable cover structure 12 that opens the water outlet is added, so that the function of this clamping component can be extended to have more applicability and practicality. To facilitate efficient production and assembly, the cover assembly 1 with the destructible folding cover structure 12 can be pre-connected with the clamping assembly 1 and the cover assembly 2 with the clamping assembly 2 using a connecting belt or other means to form a connected body. This design can further reduce production costs and has the advantages of reducing the number of components that originally needed to be produced separately, shortening the production cycle, and improving the time efficiency of product assembly.

[0026] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A container sealing structure employing an "L" and "J" shaped locking mechanism, comprising a cup body assembly and a lid assembly one or a lid assembly two mounted on its top, characterized in that, The cup assembly includes a container body (1) and an outwardly rolled shape (13) integrally formed on the container body (1) with an opening. The lid assembly (3) includes a lid body (2) and an outer extension (5) integrally formed on the periphery of the lid body (2). The bottom of the outer extension (5) is provided with multiple independent sets of "L"-shaped fixing buckles (6), and the "L"-shaped fixing buckles (6) can be folded inward along the outer extension (5). The "L"-shaped fixing buckles (6) are designed with several vertical strip-shaped protrusions (14) of a certain height on the outer side. The lid body (2) is used in conjunction with the clamping component (1) through the "L"-shaped fixing buckles (6) to form an "L"-shaped blocking fixing buckle sealing structure.

2. The container sealing structure using "L" and "J" shaped locking mechanisms according to claim 1, characterized in that, The clamping component includes a clamping part (4) and a tear-out groove (3) that can be detachably installed on the periphery of the clamping part (4). The lower end of the clamping part (4) is integrally formed with an undercut (15). The undercut (15) abuts against the vertical protrusion (14) on the outer side of the "L"-shaped fixing buckle (6), fixing and constraining the "L"-shaped fixing buckle (6) to the lower edge of the opening outward roll shape (13) of the matching container body (1) of the cover body (2).

3. A container sealing structure using an "L" and "J" shaped locking mechanism according to claim 2, characterized in that, The "L"-shaped fixing buckle (6) is integrally connected to the lower end of the outer extension (5) side wall, and a horizontal folding groove that can be folded inward is designed.

4. A container sealing structure using an "L" and "J" shaped locking mechanism according to claim 3, characterized in that, The second cover assembly includes a second cover (7) and an outer extension (11) integrally formed around the outer periphery of the second cover (7). Multiple independently distributed "J"-shaped hooks (10) are provided around the side of the outer extension (11). The upper end of the "J"-shaped hook (10) is integrally connected to the upper edge of the outer extension (11). The two sides of the "J"-shaped hook (10) are separate from the outer extension (11) and are not connected. The inner side of the lower end of the "J"-shaped hook (10) is in contact with the outer rolled shape (13) in a shape close to an arc. The second cover (7) is used in conjunction with the second clamping component to form a "J"-shaped locking and sealing structure.

5. A container sealing structure using an "L" and "J" shaped locking mechanism according to claim 4, characterized in that, The second clamping component includes a second clamping member (9) and a tearing groove (8) set on the outer ring of the second clamping member (9). The lower end of the second clamping member (9) is designed with a ring of buckles (16) to prevent backing and to forcefully detach from the production mold. The second clamping member (9) is fitted from top to bottom on the outer side of the outer extension (11) of the cover body (7). The cover body (7) is locked to the upper opening of the outer roll shape (13) on the container body (1) by the cooperation of the buckles (16) and the "J" shaped hook (10).

6. A container sealing structure using an "L" and "J" shaped locking mechanism according to claim 4, characterized in that, The inner side of the "J"-shaped hook (10) is close to the arc-shaped contact surface. The whole is made of a material that can be deformed to different degrees according to the thickness of different parts of the shape, and it is matched with the outward roll shape (13) of the opening on the container body (1).

7. A container sealing structure using an "L" and "J" shaped locking mechanism according to claim 6, characterized in that, The shape of the container (1) includes, but is not limited to, a circle, a square, or a triangle.

8. A container sealing structure using an "L" and "J" shaped locking mechanism according to claim 6, characterized in that, Both the outer surfaces of the first cover (2) and the second cover (7) are provided with a destructible, foldable cover structure (12) that matches their water outlets.

9. A container sealing structure using an "L" and "J" shaped locking mechanism according to claim 8, characterized in that, The cover assembly 1 and the clamping assembly 1, and the cover assembly 2 and the clamping assembly 2, which have a destructible folding and opening cover structure (12), are pre-connected by a connecting belt to form a connecting body.

10. A container sealing structure using an "L" and "J" shaped locking mechanism according to claim 5, characterized in that, The tearing groove one (3) and tearing groove two (8) are made of materials with tearable and brittle fracture properties.