A sealable pop-top can end
By designing a sealable can lid, utilizing the rotational connection between the pull ring mechanism and the sealing block mechanism, as well as the elastic deformation of the hollow sealing plug, the problem of the can not be resealed is solved, achieving a simple sealing effect and preventing liquid leakage and gas overflow.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHAOQING JINDAJIN PACKAGING CONTAINER CO LTD
- Filing Date
- 2025-05-13
- Publication Date
- 2026-06-02
AI Technical Summary
Existing aluminum can lids cannot be resealed after opening, causing the contents to easily spill or spoil.
A sealable can lid was designed, which achieves switching between open and sealed states through the rotational connection of the pull ring mechanism and the sealing block mechanism. The sealing is achieved by the elastic deformation of the hollow sealing plug, and the semi-circular groove and chamfer design reduce frictional resistance and ensure sealing effect.
This technology enables the can to be resealed after opening, preventing liquid leakage and gas spillage. The operation is simple, requires no additional parts, and improves ease of use and sealing effect.
Smart Images

Figure CN224312221U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aluminum can technology, specifically to a sealable aluminum can lid. Background Technology
[0002] Canned beverages are widely used because they are easy to carry and store. When drinking canned beverages, it is often not possible to finish the beverage in one go, so we need to reseal them or repackage them multiple times to facilitate carrying the opened beverage.
[0003] Existing aluminum can lids generally cannot be sealed after use, meaning that once the can is opened, the contents must be consumed before it can be resealed, which can lead to spillage or spoilage of the contents. Utility Model Content
[0004] Therefore, the purpose of this utility model is to provide a sealable can lid to solve the technical problem that the can cannot be resealed after it has been opened.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a sealable can lid, comprising a can body, a can lid fixedly connected to the top of the can body, a pull ring mechanism rotatably connected to the top of the can lid, a sealing block mechanism fixedly connected to the pull ring mechanism, the sealing block mechanism comprising a locking block, a sealing plug fixedly connected to the bottom of the locking block, and the sealing plug having a hollow internal structure.
[0006] By adopting the above technical solution, the rotating connection between the pull ring mechanism and the can lid allows users to switch between open and sealed states, avoiding the problem that traditional pull rings cannot be resealed after being damaged once.
[0007] Furthermore, the card block has a hollow structure, and a cross block is fixedly connected inside the card block. A rubber pull strip is fixedly connected to the top of the cross block, and a rubber pull ring is fixedly connected to one end of the rubber pull strip.
[0008] By adopting the above technical solution, the hollow structure of the card block reduces the overall weight of the sealing block mechanism, while providing a rigid support frame for the cross block to ensure that the pulling force is transmitted along the axis and avoid deflection during the pulling process.
[0009] Furthermore, the card block is provided with grooves around its perimeter, and the grooves engage with the pull ring mechanism.
[0010] By adopting the above technical solution, the depth and width of the groove are precisely matched with the thickness of the metal pull ring, forming a multi-directional limiting mechanism.
[0011] Furthermore, the pull ring mechanism includes a deformable piece, one end of which is fixedly connected to a metal pull ring, which is arranged in a zigzag shape.
[0012] By adopting the above technical solution, the zigzag structure of the metal pull ring forms a lever fulcrum. When pulling, the downward pressure at the front end is concentrated on the easy-tear line scratch, reducing the force required to open. The bending part at the rear end amplifies the user's hand movements, causing the deformable piece to produce controllable plastic deformation.
[0013] Furthermore, the bottom of the sealing plug has semi-circular grooves on both sides, and a chamfer is provided below the semi-circular grooves.
[0014] By adopting the above technical solution, the arc-shaped edge of the semicircular groove guides the material to shrink towards the center when the sealing plug is pressed in. In the initial stage of pressing, the two sides of the semicircular groove fold inward to reduce the contact area between the sealing plug and the opening and reduce frictional resistance. After pressing is completed, the recovery deformation of the semicircular groove causes the groove wall to expand outward and form a three-point mechanical locking with the inner wall of the opening.
[0015] In summary, the present invention has the following main advantages:
[0016] This invention features a can body, lid, pull ring mechanism, and sealing block mechanism. The rotating connection of the metal pull ring allows it to rotate after opening, precisely aligning the sealing plug with the drinking spout. When pressed, the hollow sealing plug elastically deforms and embeds into the opening, achieving physical sealing. The hollow structure of the sealing plug automatically rebounds and expands after being compressed, forming an interference fit with the inner wall of the opening to prevent liquid leakage or gas overflow. The entire process of "pulling up to open - rotating to position - pressing to seal" is completed through the same pull ring mechanism, requiring no additional parts and solving the problem that traditional cans cannot be resealed after being opened once.
[0017] This invention features a semi-circular groove and a chamfer. When the sealing plug is pressed, the semi-circular groove guides the material on both sides to contract in a directional manner, reducing the frictional resistance with the inner wall of the drinking spout and making the pressing operation smoother. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0019] Figure 2 This is a three-dimensional structural diagram of the can lid of this utility model;
[0020] Figure 3 This is a three-dimensional structural diagram of the pull ring mechanism of this utility model;
[0021] Figure 4 This is a bottom-view three-dimensional structural diagram of the pull ring mechanism of this utility model;
[0022] Figure 5This is a half-sectional structural diagram of the pull ring mechanism of this utility model.
[0023] In the diagram: 1. Can body; 2. Can lid; 3. Pull ring mechanism; 4. Sealing block mechanism; 401. Locking block; 402. Sealing plug; 403. Cross block; 404. Rubber pull strip; 405. Rubber pull ring; 406. Groove; 301. Deformation piece; 302. Metal pull ring; 5. Semicircular groove; 6. Chamfer. Detailed Implementation
[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. Example 1:
[0025] A type of resealable can lid, such as Figures 1-5 As shown, the device includes an aluminum can body 1, a can lid 2 fixedly connected to the top of the can body 1, a pull ring mechanism 3 rotatably connected to the top of the can lid 2, a sealing block mechanism 4 fixedly connected to the pull ring mechanism 3, the sealing block mechanism 4 including a locking block 401, a sealing plug 402 fixedly connected to the bottom of the locking block 401, the sealing plug 402 having a hollow internal structure, the hollow structure of the sealing plug 402 having a dual function, when pressure is applied, the hollow cavity contracts and deforms, reducing the resistance to the drinking spout, after the pressure is released, the cavity rebounds and expands, forming an interference fit with the inner wall of the opening through elastic deformation, achieving an airtight seal. The material of the hollow sealing plug 402, such as food-grade silicone, can withstand repeated deformation and prevent seal failure.
[0026] See Figure 3 and Figure 4 The locking block 401 has a hollow structure. A cross block 403 is fixedly connected inside the locking block 401. A rubber pull strip 404 is fixedly connected to the top of the cross block 403. A rubber pull ring 405 is fixedly connected to one end of the rubber pull strip 404. The rubber pull strip 404 can maintain a naturally contracted state when no force is applied, so that the rubber pull ring 405 fits against the surface of the can lid 2 to avoid accidental opening. When pulling, the extensibility of the rubber pull strip 404 absorbs part of the impact force to prevent metal parts such as the metal pull ring 302 from breaking due to instantaneous overload.
[0027] See Figure 3 and Figure 4 The card block 401 is provided with grooves 406 around its perimeter. The grooves 406 and the pull ring mechanism engage in three phases. The grooves 406 can balance the forces in all directions and improve the structural stability.
[0028] See Figure 1 , Figure 2The pull ring mechanism 3 includes a deformable piece 301, one end of which is fixedly connected to a metal pull ring 302. The metal pull ring 302 is arranged in a zigzag structure. After the first opening, the permanent bending of the deformable piece 301 provides clearance space for the sealing plug 402, avoiding interference with the can lid 2 during reset. The stiffness of the deformable piece 301 after plastic deformation is reduced, making the secondary opening operation easier.
[0029] The implementation principle of this utility model is as follows: First, during installation, the groove 406 of the sealing block mechanism 4 is inserted into the metal pull ring 302 of the pull ring mechanism 3, and then the metal pull ring 302 and the can lid 2 are rotated and connected.
[0030] When in use, the user pulls upwards through the rubber pull ring 405, the cross block 403 provides the pulling force transmission, the rubber pull strip 404 drives the cross block 403 to make the locking block 401 and the pull ring mechanism 3 move upwards, leaving space for the user to put their fingers, and then pulls upwards with force, causing the deformable piece 301 to undergo plastic deformation, and using the lever principle to press down the easy-tear line. At this time, the easy-tear line is destroyed to form a drinking spout, and the permanent upward bending of the deformable piece 301 facilitates subsequent operations.
[0031] With the metal pull ring 302 in an upward position, rotate the metal pull ring 302 so that the sealing plug 402 is aligned with the drinking spout. Press the end of the metal pull ring 302, and the bottom of the sealing plug 402 will be embedded into the drinking spout through elastic deformation.
[0032] When opening for the second time, the user pulls upwards using the rubber pull ring 405. The cross block 403 provides the pulling force transmission, and the rubber pull strip 404 drives the cross block 403 to move the locking block 401 and the pull ring mechanism 3 upwards, pulling up the metal pull ring 302 to make it vertical. Then, the metal pull ring 302 is rotated to reset. The pre-deformation characteristics of the deformable piece 301 are used to reduce the opening resistance, and the rubber pull ring 405 provides an additional lifting force point to ensure that the sealing plug 402 is smoothly removed from the drinking spout. Example 2:
[0033] See Figure 5 The bottom of the sealing plug 402 has semi-circular grooves 5 on both sides, and a chamfer 6 is provided below the semi-circular grooves 5. The beveled design of the chamfer 6 enables the sealing plug 402 to achieve self-correction function when it is aligned.
[0034] The implementation principle of this utility model is as follows: First, the improvement on the first embodiment is that by opening a semi-circular groove 5, it is easy to deform, making pressing less effort. The chamfer 6 provides guidance for precise positioning, and after being inserted, the semi-circular groove 5 and the drinking spout form a snap, preventing the seal from being accidentally released.
[0035] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.
Claims
1. A reclosable pop can lid characterized by: The utility model provides a pop -top can body (1), the top of pop -top can body (1) is fixedly connected with the can cover (2), the top of can cover (2) is rotatably connected with the ring mechanism (3), the ring mechanism (3) is fixedly connected with the sealing block mechanism (4) on, sealing block mechanism (4) includes the clamping block (401), the bottom of clamping block (401) is fixedly connected with sealing plug (402), the inside of sealing plug (402) is the hollow structure.
2. A spoutable zip-top can end according to claim 1 characterised in that: The clamping block (401) is a hollow structure, the inside of clamping block (401) is fixedly connected with cross block (403), the top of cross block (403) is fixedly connected with rubber pull strip (404), one end of rubber pull strip (404) is fixedly connected with rubber pull ring (405).
3. The spoutable zip-top can end of claim 1 wherein: The periphery of clamping block (401) is provided with recess (406), recess (406) and ring mechanism (3) are engaged.
4. The spoutable zip-top can end of claim 1 wherein: The ring mechanism (3) includes a deformed sheet (301), one end of the deformed sheet (301) is fixedly connected with a metal pull ring (302), and the metal pull ring (302) is arranged in a zigzag shape.
5. The spoutable zip-top can end of claim 1 wherein: The bottom of the sealing plug (402) is provided with a semicircular groove (5) on both sides, and a chamfer (6) is arranged below the semicircular groove (5).