High-resilience bottom cover not prone to deformation
By designing a gradually inclined annular reinforcement and inclined structure on the easy-opening bottom cover, the problem of easy deformation of the existing bottom cover under internal pressure is solved, high rebound and good pressure resistance are achieved, and the integrity of the sealing function is ensured.
Patent Information
- Application Number
- CN202421435366.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-22
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-06-22
AI Technical Summary
The existing metal easy-opening bottom cover can easily lead to irreversible plastic deformation after being subjected to internal pressure, resulting in the loss of sealing and storage functions.
A bottom cover with high rebound is designed, and by providing a first annular reinforcement, a second annular reinforcement, and a third annular reinforcement rib are arranged on the cover body in sequence from outside to inside, forming an annular inclined surface that gradually inclines toward the center of the cover body, enhancing the force capacity of the center of the cover body, and maintaining seal protection through metal elastic rebound.
The pressure resistance and rebound performance of the bottom cover are improved, the overall deformation of the cover is reduced, and the structural integrity and sealing function of the bottom cover are maintained.
Smart Images
Figure CN222646657U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an easy-to-open cover, in particular to a bottom cover with high resilience and not easy to deform. Background Art
[0002] The current metal easy-open can generally includes a can body, an easy-open cover and a bottom cover, wherein the easy-open cover is installed at the upper opening of the can body and the bottom cover is installed at the lower opening of the can body. However, when the metal bottom cover is subjected to internal pressure, the cover body is easily plastically deformed due to the internal pressure, and this plastic deformation is irreversible. When the internal pressure is removed, the deformation of the bottom cover still exists. In severe cases, the bottom cover may be separated from the lower opening of the can body, causing the lower opening of the can body to lose its sealing and storage functions. Utility Model Content
[0003] The problem to be solved by the utility model is to provide a bottom cover with high resilience and not easy to deform. The bottom cover has good pressure resistance, good resilience and not easy to deform.
[0004] In order to solve the above technical problems, the technical solutions adopted by the utility model are as follows:
[0005] A bottom cover with high resilience and not easy to deform comprises a cover body, characterized in that: the cover body is provided with a first annular reinforcing rib, a second annular reinforcing rib and a third annular reinforcing rib in sequence from the outside to the inside, the first annular reinforcing rib protrudes downward toward the center of the cover body, the second annular reinforcing rib protrudes downward toward the center of the cover body and is located in the first annular reinforcing rib, and the third annular reinforcing rib protrudes downward toward the center of the cover body and is located in the second annular reinforcing rib; the first annular reinforcing rib forms a first annular inclined surface gradually inclined downward from the outside to the inside on the cover body, the second annular reinforcing rib forms a second annular inclined surface gradually inclined downward from the outside to the inside on the cover body, and the third annular reinforcing rib forms a third annular inclined surface gradually inclined downward from the outside to the inside on the cover body; the second annular inclined surface is located on the lower inner side of the first annular inclined surface, and the third annular inclined surface is located on the lower inner side of the second annular inclined surface.
[0006] The above-mentioned cover body is provided with a first annular reinforcing rib, a second annular reinforcing rib, and a third annular reinforcing rib in sequence from the cover edge to the center of the cover body, and the heights of the first annular bevel, the second annular bevel, and the third annular bevel formed decrease layer by layer from the outside to the inside; when the center of the cover body is subjected to internal pressure, the three annular reinforcing ribs play a supporting and reinforcing role in sequence, strengthen the force in the center of the cover body, and improve the pressure resistance of the bottom cover; when the internal pressure is removed, the cover surface structure can rely on the metal elasticity to rebound to the initial position, so that the bottom cover plays an effective sealing and protective role. The above-mentioned three annular bevels gradually inclined toward the center of the cover body can effectively disperse and relieve the stress concentration on the cover body. The pressure difference caused by the temperature difference between the inside and outside of the tank can be transmitted and released layer by layer through the three annular bevels, reducing the overall deformation of the cover body and maintaining the structural integrity of the bottom cover.
[0007] In a preferred embodiment, a first annular plane is provided between the cover edge of the cover body and the first annular bevel, a second annular plane is provided between the first annular bevel and the second annular bevel, a third annular plane is provided between the second annular bevel and the third annular bevel, the inner area of the third annular bevel is a fourth plane, the first annular plane is higher than the second annular plane, the second annular plane is higher than the third annular plane, and the third annular plane is higher than the fourth plane. Through this arrangement, the heights of the first annular plane, the second annular plane, the third annular plane, and the fourth plane gradually decrease inwardly, and such a gradually decreasing height design enables the pressure to be gradually dispersed from the outside to the inside, reducing the concentrated pressure on the middle part of the cover body, and effectively avoiding excessive deformation of the center of the cover body.
[0008] Compared with the prior art, the utility model has the following advantages:
[0009] The bottom cover of the utility model has good pressure resistance, good resilience and is not easy to deform. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a structural schematic diagram of a specific embodiment 1 of the utility model;
[0011] Figure 2 yes Figure 1 Schematic diagram of the cross section of AA. DETAILED DESCRIPTION
[0012] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
[0013] like Figure 1-2 As shown, the high-resilience and non-deformable bottom cover in this embodiment includes a cover body 1, and a first annular reinforcing rib 11, a second annular reinforcing rib 12, and a third annular reinforcing rib 13 are sequentially arranged on the cover body 1 from the outside to the inside. The first annular reinforcing rib 11 protrudes downward toward the center of the cover body 1, the second annular reinforcing rib 12 protrudes downward toward the center of the cover body 1 and is located in the first annular reinforcing rib 11, and the third annular reinforcing rib 13 protrudes downward toward the center of the cover body 1 and is located in the second annular reinforcing rib 12; the first annular reinforcing rib 11 forms a first annular inclined surface 111 gradually inclined downward from the outside to the inside on the cover body 1, the second annular reinforcing rib 12 forms a second annular inclined surface 121 gradually inclined downward from the outside to the inside on the cover body 1, and the third annular reinforcing rib 13 forms a third annular inclined surface 131 gradually inclined downward from the outside to the inside on the cover body 1; the second annular inclined surface 121 is located on the lower inner side of the first annular inclined surface 111, and the third annular inclined surface 131 is located on the lower inner side of the second annular inclined surface 121.
[0014] The cover body 1 is provided with a first annular reinforcing rib 11, a second annular reinforcing rib 12, and a third annular reinforcing rib 13 in sequence from the cover edge to the center of the cover body 1, and the heights of the first annular bevel 111, the second annular bevel 121, and the third annular bevel 131 formed are gradually reduced from the outside to the inside; when the center of the cover body 1 is subjected to internal pressure, the three annular reinforcing ribs play a supporting and reinforcing role in sequence, strengthen the force in the center of the cover body 1, and improve the pressure resistance of the bottom cover; when the internal pressure is removed, the cover surface structure can rely on the metal elasticity to rebound to the initial position, so that the bottom cover plays an effective sealing and protective role. The above three annular bevels gradually inclined toward the center of the cover body 1 can effectively disperse and relieve the stress concentration on the cover body 1. The pressure difference caused by the temperature difference between the inside and outside of the tank can be transmitted and released layer by layer through the three annular bevels, reducing the overall deformation of the cover body 1 and maintaining the structural integrity of the bottom cover.
[0015] A first annular plane 112 is provided between the cover edge of the cover body 1 and the first annular slope 121, a second annular plane 113 is provided between the first annular slope 111 and the second annular slope 121, a third annular plane 122 is provided between the second annular slope 121 and the third annular slope 131, the inner area of the third annular slope 131 is a fourth plane 132, the first annular plane 112 is higher than the second annular plane 113, the second annular plane 113 is higher than the third annular plane 122, and the third annular plane 122 is higher than the fourth plane 132. Through this arrangement, the heights of the first annular plane 112, the second annular plane 113, the third annular plane 122, and the fourth plane 132 are gradually reduced inwardly, and such a design of decreasing height layer by layer enables the pressure to be gradually dispersed from the outside to the inside, reducing the concentrated pressure on the middle part of the cover body 1, and effectively avoiding excessive deformation of the center of the cover body 1.
[0016] In addition, it should be noted that the names of the various parts of the specific embodiments described in this specification may be different, and any equivalent or simple changes made based on the structure, features and principles described in the utility model patent concept are included in the protection scope of the utility model patent. The technical personnel of the technical field to which the utility model belongs can make various modifications or supplements to the specific embodiments described or replace them in a similar manner, as long as they do not deviate from the structure of the utility model or exceed the scope defined by the claims, they should all fall within the protection scope of the utility model.
Claims
1. A bottom cover with high resilience and low deformation resistance, comprising a cover body, characterized in that: The cover body is provided with a first annular reinforcing rib, a second annular reinforcing rib, and a third annular reinforcing rib in sequence from outside to inside, the first annular reinforcing rib protrudes downward toward the center of the cover body, the second annular reinforcing rib protrudes downward toward the center of the cover body and is located in the first annular reinforcing rib, and the third annular reinforcing rib protrudes downward toward the center of the cover body and is located in the second annular reinforcing rib; The first annular reinforcement rib forms a first annular slope gradually sloping downward from the outside to the inside on the cover body, the second annular reinforcement rib forms a second annular slope gradually sloping downward from the outside to the inside on the cover body, and the third annular reinforcement rib forms a third annular slope gradually sloping downward from the outside to the inside on the cover body; the second annular slope is located on the lower inner side of the first annular slope, and the third annular slope is located on the lower inner side of the second annular slope.
2. The bottom cover with high resilience and low deformation resistance as claimed in claim 1, characterized in that: A first annular plane is provided between the cover edge of the cover body and the first annular slope, a second annular plane is provided between the first annular slope and the second annular slope, a third annular plane is provided between the second annular slope and the third annular slope, the inner area of the third annular slope is a fourth plane, the first annular plane is higher than the second annular plane, the second annular plane is higher than the third annular plane, and the third annular plane is higher than the fourth plane.