Tank cover
By setting a central shaft, ring wall, and convex ring structure on the can lid, the strength of the can lid is enhanced, the problems of can lid deformation and detachment are solved, and the stability and deformation resistance of the can lid are achieved when it is misaligned.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-03-10
AI Technical Summary
Existing can lids are prone to deformation under stress and can easily fall off when adjacent cans are misaligned, causing the can lids to detach from the packaging.
A central axis extending vertically is set on the can lid, and combined with the ring wall and convex ring structure, the overall strength of the can lid is enhanced. The design of the convex ring prevents adjacent can lids from lifting up when they are misaligned.
It improves the can lid's resistance to deformation, prevents adjacent can lids from falling off when misaligned, and ensures the stability of the can lid during the packaging process.
Smart Images
Figure CN223982882U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the can cover of can body, especially relates to a kind of can cover that strengthen and stress is not easy to warp. BACKGROUND
[0002] Please see Figure 5 With Figure 6 As shown in the drawing, the existing can body A1 is combined with can cover A2 on its top, and this can cover A2 lacks the structure of improving strength, so it is easy to deform when stressed. When packaging the plurality of can body A1 with can cover A2, it is usually packaged with shrink film, and at this time, the plurality of can body A1 is in the state of two by two adjacent. When storing the plurality of can body A1 with can cover A2, it is also arranged in the way of two by two adjacent.
[0003] When the two adjacent can body A1 with can cover A2 are misaligned up and down, the upper edge of one can cover A2 is easy to be buckled to the lower edge of another can cover A2, so that in the process of restoring the original position of the two adjacent can body A1 and its can cover A2, the can cover A2 of one can body A1 will lift one side of the can cover A2 of another can body A1, and the problem that the can cover A2 on the plurality of can body A1 is easy to fall off is caused. UTILITY MODEL CONTENTS
[0004] Therefore, the purpose of the utility model is to provide a kind of can cover, the strength of the can cover is strengthened by the way of extending the ring wall of the can cover, so that the can cover is not easy to deform when stressed, and at the same time, the problem that one can cover is easy to be lifted by another can cover when the can cover installed in adjacent two can bodies is misaligned up and down and then restores the original position is avoided.
[0005] In order to achieve the above purpose, the utility model provides a kind of can cover, with a center axis extending in the up-down direction, and including a ring wall, a cover plate and a convex ring. The ring wall is a concentric circular body with the center axis, and the inner side of the ring wall has a ring wall inner circumferential surface, and a convex buckle part is formed at the lower edge of the ring wall inner circumferential surface. The outer periphery of the cover plate is connected to the upper edge of the ring wall inner circumferential surface. The convex ring is a concentric circular body with the center axis, and the lower end edge of the convex ring is connected to the upper end edge of the ring wall.
[0006] The advantage of this invention lies in that the connection of the convex ring to the ring wall strengthens the overall strength of the can lid, making it less prone to deformation and warping under stress. Furthermore, the design of the convex ring extending integrally upwards from the ring wall ensures that when two adjacent cans fitted with this invention's can lids are misaligned, the increased length of the outer circumference of each can lid along the central axis compared to existing can lids makes it less likely for the upper edge of the convex ring of one can lid to engage with the lower edge of the ring wall of the other can lid. This prevents one can lid from lifting one side of the other can lid during the return-to-position process, thus avoiding the can lids of multiple cans in shrink-wrapped packaging 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 This is a schematic diagram showing two adjacent cans with the lid of this utility model installed in a staggered manner.
[0011] Figure 4A for Figure 4 Enlarged view of point 4A.
[0012] Figure 5 This is a schematic diagram of two adjacent tanks, each with a lid, that are staggered vertically.
[0013] Figure 6 This is a diagram illustrating how the lid of an existing tank is lifted by the lid of another tank.
[0014] Explanation of reference numerals in the attached figures:
[0015] 100: Can lid
[0016] 10: Circumferential wall
[0017] 12: Inner circumferential surface of the ring wall
[0018] 14: Outer circumferential surface of the ring wall
[0019] 16: Protruding buckle part
[0020] 20: Cover plate
[0021] 30: convex ring
[0022] 32: Inner circumferential surface of the convex ring
[0023] 34: Outer circumference of the convex ring
[0024] A: Tank
[0025] H1: Length
[0026] H2: Length
[0027] H3: Length
[0028] H4: Length
[0029] H5: Length
[0030] L: Central axis
[0031] A1: Tank
[0032] A2: Can lid Detailed Implementation
[0033] 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 3 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, a cover plate 20, and a protruding ring 30, wherein:
[0034] 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.
[0035] The cover plate 20 is a circular plate concentric with the central axis L, and its outer periphery is connected to the upper edge of the inner circumferential surface 12 of the annular wall. The length H1 of the cover plate 20 along the central axis L is equal to the length H2 between the inner circumferential surface 12 and the outer circumferential surface 14 of the annular wall perpendicular to the central axis L.
[0036] The convex ring 30 is a circular ring concentric with the central axis L. The lower edge of the convex ring 30 is connected to the upper edge of the ring wall 10. The inner and outer sides of the cover plate 20 respectively have an inner circumferential surface 32 and an outer circumferential surface 34 of the convex ring. The inner circumferential surface 32 of the convex ring is aligned with the inner circumferential surface 12 of the ring wall along the direction of extension of the central axis L. The outer circumferential surface 34 of the convex ring 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 34 of the convex ring and the outer circumferential surface 14 of the ring wall together form a smooth and continuous cylindrical surface at the joint, without radial drop. The length H3 between the inner circumferential surface 32 and the outer circumferential surface 34 of the convex ring perpendicular to the central axis L is equal to the length H1 of the cover plate 20 along the direction of extension of the central axis L.
[0037] Preferably, the length H4 of the convex ring 30 extending along the central axis L is greater than 0.5 mm. In this preferred embodiment, the length H4 of the convex ring 30 extending along the central axis L is 0.5 mm. In other preferred embodiments, the length of the convex ring 30 extending 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 keep manufacturing costs down, the length H4 of the convex ring 30 extending along the central axis L is preferably less than the length H5 of the ring wall 10 extending along the central axis L.
[0038] The can lid 100 of this utility model, through the provision of the convex ring 30, can enhance the overall strength of the can lid 100, preventing warping under stress and thus giving the can lid 100 greater strength. When this utility model is used, if... Figure 4 and Figure 4A 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.
[0039] This invention, through the provision of the convex rings 30 on each can lid 100, ensures that when two adjacent cans A are vertically misaligned, the upper edge of one can lid 100, i.e., the upper edge of the convex ring 30, extends upwards by a certain length. This prevents the upper edge of the convex ring 30 from easily engaging with the lower edge of the annular wall 10 of the other can lid 100. Instead, the outer circumferential surface 34 of the convex ring or the upper edge of the convex ring 30 abuts against the outer circumferential surface 14 of the annular wall. When the vertical misalignment of the two adjacent cans A is significant, the outer circumferential surface 34 of the convex ring or the upper edge of the convex ring 30 may even abut against the lower edge of the outer circumferential surface 14 of the annular wall. Incidentally, the longer the length H4 of the convex ring 30 along the central axis L, the better the effect of preventing the upper edge of the convex ring 30 from directly engaging with the lower edge of the annular wall 10 of the other can lid 100. In this way, during the process of two adjacent can lids 100 returning to their original positions, it can be prevented that the can lid 100 of one can body A will lift one side of the other can lid 100, so that the can lids 100 of each can body A, which are wrapped in shrink film and have the can lids 100 respectively, are not easy to fall off during the movement.
[0040] 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 the cover plate includes a ring wall, a cover plate, and a convex ring. 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 outer periphery of the cover plate is connected to the upper edge of the ring wall inner circumferential surface. The convex ring is a circular ring body concentric with the center axis, and the lower end edge of the convex ring is connected to the upper end edge of the ring wall.
2. The can lid of claim 1, wherein The outer side of the ring wall has a ring wall outer circumferential surface, and the outer side of the convex ring has a convex ring outer circumferential surface, which is aligned with the ring wall outer circumferential surface in the direction of extension of the center axis.
3. The can lid of claim 2, wherein The inner side of the convex ring has a convex ring inner circumferential surface, which is aligned with the ring wall inner circumferential surface in the direction of extension of the center axis.
4. The can lid of claim 3, wherein The length between the ring wall outer circumferential surface and the ring wall inner circumferential surface in a direction perpendicular to the direction of extension of the center axis is equal to the length between the convex ring outer circumferential surface and the convex ring inner circumferential surface in the direction perpendicular to the direction of extension of the center axis.
5. The can lid of claim 4, wherein The cover plate is a circular plate body, and the length of the cover plate in the direction of extension of the center axis is equal to the length between the convex ring outer circumferential surface and the convex ring inner circumferential surface in the direction perpendicular to the direction of extension of the center axis.
6. The can lid of claim 1 wherein, The length of the convex ring in the direction of extension of the center axis is greater than 0.5 mm and less than the length of the ring wall in the direction of extension of the center axis.