Tank cover
By designing an extension ring and ring wall structure for the can lid, the problem of the can lid falling off when misaligned is solved, and the stability of the can lid in shrink film packaging is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-03-13
AI Technical Summary
The existing can lids are prone to falling off when adjacent cans are misaligned, causing the can lids to detach from the shrink film packaging.
Design a can lid having a central axis extending in the vertical direction, an annular wall, and an extension ring. The inner side of the annular wall has a protruding buckle. The extension ring is concentric with the central axis. The upper end of the extension ring is connected to the lower end of the annular wall. The length of the extension ring increases the length of the outermost circumference of the can lid to prevent it from falling off when fastened.
This effectively prevents the can lid from falling off when adjacent cans are misaligned and returning to their original position, ensuring the can lid is secure during shrink film packaging and reducing the risk of it falling off.
Smart Images
Figure CN223990351U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to accessories for cans; in particular, it relates to a can lid. Background Technology
[0002] Please refer to Figure 6 and Figure 7 As shown, the existing can A1 is equipped with a lid A2. The lid A2 is a two-tiered lid, narrower at the top and wider at the bottom, with enough space inside the lid A2 to accommodate a folding spoon. When packaging multiple cans A1 with lids A2, they are usually wrapped with shrink film, in which case the multiple cans A1 are arranged in pairs adjacent to each other. When storing multiple cans A1 with lids A2, they are also arranged in pairs adjacent to each other.
[0003] When two adjacent cans A1 with lids A2 are misaligned, the upper edge of one lid A2 can easily hook onto the lower edge of the other lid A2. As the two adjacent cans A1 and their lids A2 return to their original positions, the lid A2 of one can A1 will lift one side of the lid A2 of the other can A1, causing the lids A2 on the multiple cans A1 to easily fall off. Utility Model Content
[0004] In view of this, the purpose of this utility model is to provide a can lid that, by extending an extension ring downward from the ring wall of the can lid, avoids the problem that when the can lids installed on two adjacent cans are misaligned and then return to their original positions, one can lid is easily lifted by the other can lid and falls off the can.
[0005] To achieve the above objectives, this utility model provides a can lid having a central axis extending in a vertical direction, and including an annular wall, an extension ring, and a lid body. The annular wall is a circular ring concentric with the central axis, and its inner side has an inner circumferential surface, with a protruding buckle formed at the lower edge of the inner circumferential surface. The extension ring is also a circular ring concentric with the central axis, and its upper edge is connected to the lower edge of the annular wall. The outer periphery of the lid body is connected to the upper edge of the inner circumferential surface of the annular wall.
[0006] The advantage of this invention lies in the fact that, through the design of the extension ring extending integrally downwards from the ring wall, when two adjacent cans fitted with the lids of this invention are misaligned, the length of the outermost circumference of each lid extending along the central axis is longer than that of existing lids. This makes it less likely for the upper edge of the ring wall of one lid to engage with the lower edge of the extension ring of the other lid. Consequently, during the process of two adjacent cans returning from a misaligned state to their original side-by-side position, the lid of one can will not lift one side of the other lid, thus preventing the lids of multiple cans wrapped in shrink film from detaching from the cans during movement. Attached Figure Description
[0007] Figure 1 This is a perspective view of a preferred embodiment of the present invention.
[0008] Figure 2 for Figure 1 Top view.
[0009] Figure 3 for Figure 2 A cross-sectional view along the 3-3 direction.
[0010] Figure 4 for Figure 1 A bottom view.
[0011] Figure 5 This is a schematic diagram showing two adjacent cans with the lid of this utility model installed in a staggered manner.
[0012] Figure 5A for Figure 5 Enlarged view of the area marked 5A.
[0013] Figure 6 This is a schematic diagram of two adjacent tanks, each with a lid, that are staggered vertically.
[0014] Figure 7 This is a diagram illustrating how the lid of an existing tank is lifted by the lid of another tank.
[0015] Explanation of reference numerals in the attached figures:
[0016] 100: Can lid
[0017] 10: Circumferential Wall
[0018] 12: Inner circumferential surface of the ring wall
[0019] 14: Outer circumference of the ring wall
[0020] 16: Protruding buckle part
[0021] 20: Extension ring
[0022] 22: Extend the inner circumference of the ring
[0023] 24: Extended outer circumference
[0024] 30: Cover
[0025] 32: Shoulder ring
[0026] 34: Second Ring Wall
[0027] 341: Inner circumferential surface of the second ring wall
[0028] 342: Outer circumferential surface of the second ring wall
[0029] 36: Cover plate
[0030] 38: Spoon snap-fit protrusion set
[0031] A: Tank
[0032] A1: Tank
[0033] A2: Can lid
[0034] H1: Length
[0035] H2: Length
[0036] L: Central axis
[0037] S1: First Refrigeration Chamber
[0038] S2: Second Chamber Detailed Implementation
[0039] To more clearly illustrate this utility model, preferred embodiments are described in detail below with reference to the accompanying drawings. Please refer to... Figures 1 to 4 As shown, this is a preferred embodiment of the can lid 100 of the present invention. The can lid 100 is formed by injection molding of plastic using a mold, and the center of the can lid 100 has a central axis L extending in the vertical direction. The can lid 100 includes an annular wall 10, an extension ring 20, and a lid body 30, wherein:
[0040] The ring wall 10 is a circular ring concentric with the central axis L. The inner and outer sides of the ring wall 10 have an inner circumferential surface 12 and an outer circumferential surface 14, respectively. A protruding buckle 16 is formed at the lower edge of the inner circumferential surface 12.
[0041] The extension ring 20 is a circular ring concentric with the central axis L, and its upper edge is connected to the lower edge of the ring wall 10. The extension ring 20 has an inner circumferential surface 22 and an outer circumferential surface 24 on its inner and outer sides, respectively. The inner circumferential surface 22 is aligned with the inner circumferential surface 12 of the ring wall along the direction of extension of the central axis L, and the outer circumferential surface 24 is aligned with the outer circumferential surface 14 of the ring wall along the direction of extension of the central axis L. Specifically, the outer circumferential surface 24 and the outer circumferential surface 14 of the ring wall together form a smooth and continuous cylindrical surface at their joint, without radial drop.
[0042] Preferably, the length of the extension ring 20 along the central axis L is greater than 0.5 mm. In this preferred embodiment, the length H1 of the extension ring 20 along the central axis L is 0.5 mm. In other preferred embodiments, the length of the extension ring 20 along the central axis L can also be 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 4 mm, or 5 mm. For aesthetic reasons and to save on manufacturing costs, the length H1 of the extension ring 20 along the central axis L is preferably set to be less than the length H2 of the ring wall 10 along the central axis L.
[0043] The outer periphery of the cover 30 is connected to the upper edge of the inner circumferential surface 12 of the annular wall 10. In this preferred embodiment, the cover 30 includes a shoulder ring 32, a second annular wall 34, and a cover plate 36. The shoulder ring 32 is a flat annular body concentric with the central axis L, and the outer periphery of the shoulder ring 32 is connected to the upper edge of the inner circumferential surface 12 of the annular wall 10. The second annular wall 34 is an annular body concentric with the central axis L, and the outer diameter of the second annular wall 34 is smaller than the outer diameter of the annular wall 10. The inner and outer sides of the second annular wall 34 respectively have a second annular wall inner circumferential surface 341 and a second annular wall outer circumferential surface 342, and the lower edge of the second annular wall outer circumferential surface 342 is connected to the inner periphery of the shoulder ring 32.
[0044] The cover plate 36 is a circular plate concentric with the central axis L. The outer periphery of the cover plate 36 is connected to the upper edge of the inner circumferential surface 341 of the second annular wall 34. A first chamber S1 is formed in the space between the annular wall 10 and the cover body 30, and a second chamber S2 is formed in the space between the second annular wall 34 and the cover plate 36. The volume of the second chamber S2 is smaller than the volume of the first chamber S1, and the second chamber S2 communicates with the first chamber S1. A spoon-locking protrusion assembly 38 protrudes into the second chamber S2 from the inner surface of the second annular wall 34 of the cover body 30 and the cover plate 36. The spoon-locking protrusion assembly 38 is used to fix a folding spoon inside the lid 100. In the preferred embodiment described above, the cover 30 is a hat-shaped structure. In other preferred embodiments, the cover 30 may also be configured as having only a circular plate, with the outer periphery of the cover 30 directly connected to the upper edge of the inner circumferential surface 12 of the ring wall.
[0045] When this utility model is used, such as Figure 5 and Figure 5A As shown, the can lid 100 is installed on a can body A. Usually, multiple can bodies A with the can lid 100 are wrapped in shrink film. At this time, the multiple can bodies A are in a state of being adjacent to each other. During the transportation of the multiple can bodies A wrapped in shrink film, the two adjacent can bodies A may be slightly misaligned due to the movement of some of the can bodies A. This state will return to its original position after the multiple can bodies A are laid flat.
[0046] This invention, through the provision of the extension ring 20 on the can lid 100, ensures that when two adjacent cans A are misaligned, the upper edge of one can lid 100 (i.e., the upper edge of the ring wall 10) is less likely to engage with the lower edge of the extension ring 20 of the other can lid 100 due to the downward extension of the extension ring 20 of the other can lid 100. Instead, the upper edge of the ring wall 10 or its outer circumferential surface 14 abuts against the outer circumferential surface 14 or the outer circumferential surface 24 of the extension ring of the other can lid 100. Incidentally, the longer the extension ring 20 extends downward from the ring wall 10, the better the effect of preventing the upper edge of the ring wall 10 of one can lid 100 from directly engaging with the lower edge of the extension ring 20 of the other can lid 100. In this way, during the process of two adjacent cans A returning to their original positions, the lid 100 of one can A can be prevented from lifting one side of the lid 100 of the other can, so that during the movement of multiple cans A with shrink film packaging and each having the lid 100, the lid 100 of each can A is not easily detached from the can A.
[0047] The above description is only a preferred and feasible embodiment of the present utility model. Any equivalent changes made by applying the present utility model specification and claims should be included within the patent scope of the present utility model.
Claims
1. A can end characterized by, The center axis extends in the up-down direction, and comprises a ring wall, an extension ring, and a cover body, wherein: The ring wall is a circular ring body concentric with the center axis, and the inner side of the ring wall has a ring wall inner circumferential surface, and a convex buckle portion is formed at the lower edge of the ring wall inner circumferential surface; The extension ring is a circular ring body concentric with the center axis, and the upper end edge of the extension ring is connected to the lower end edge of the ring wall; The outer circumferential edge of the cover body is connected to the upper edge of the ring wall inner circumferential surface.
2. The can lid of claim 1, wherein The length of the extension ring in the direction of extension of the center axis is greater than 0.5 mm.
3. The can lid of claim 2, wherein The length of the extension ring in the direction of extension of the center axis is less than the length of the ring wall in the direction of extension of the center axis.
4. The can lid of claim 3, wherein The inner side of the extension ring has an extension ring inner circumferential surface, and the extension ring inner circumferential surface is aligned with the ring wall inner circumferential surface in the direction of extension of the center axis.
5. The can lid of claim 1 wherein, The cover body comprises a shoulder ring, a second ring wall, and a cover plate; the shoulder ring is a flat circular ring body concentric with the center axis, and the outer circumferential edge of the shoulder ring is connected to the upper edge of the ring wall inner circumferential surface; the second ring wall is a circular ring body concentric with the center axis, and the outer diameter length of the second ring wall is less than the outer diameter length of the ring wall, and the inner and outer sides of the second ring wall respectively have a second ring wall inner circumferential surface and a second ring wall outer circumferential surface, and the lower edge of the second ring wall outer circumferential surface is connected to the inner circumferential edge of the shoulder ring; the outer circumferential edge of the cover plate is connected to the upper edge of the second ring wall inner circumferential surface.
6. The can lid of claim 5, wherein A first container is formed in the space between the ring wall and the cover body; a second container is formed in the space between the second ring wall and the cover plate; the volume of the second container is less than the volume of the first container, and the second container communicates with the first container.
7. The can lid of claim 6, wherein A set of spoon buckle protrusions is connected to the inner surface of the cover body and protrudes into the second container.
8. The can lid of claim 1 wherein, The outer side of the ring wall has a ring wall outer circumferential surface; the outer side of the extension ring has an extension ring outer circumferential surface, and the extension ring outer circumferential surface is aligned with the ring wall outer circumferential surface in the direction of extension of the center axis.