High-pressure-resistant light and thin easy-to-open cover
By setting up an inlay ring, reinforcement and inclined structure on the cover surface of the easy-to-open cover, a bending stress structure is formed, and the deformation problem caused by pressure difference during the can sterilization and cooling process of the can is solved, the pressure resistance is improved, and the structural integrity and sterile environment of the can are maintained.
Patent Information
- Application Number
- CN202421414345.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-20
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-06-20
AI Technical Summary
During the sterilization and cooling process of the can, the pressure difference caused by the temperature difference inside and outside the can easily lead to deformation of the cover surface, affecting the double rolling and sealing structure, and may cause substances outside the can to enter the tank body, destroying the sterile environment and causing food to deteriorate.
A high pressure-resistant light and lightweight and easy-to-open cover is designed. By setting up an inlay ring, reinforcement rib and inclined structure on the cover surface, a bending stress structure is formed, which enhances the stress capacity of the cover body and improves the pressure resistance.
It effectively improves the pressure resistance of easy opening, reduces the risk of deformation of the cover, maintains the structural integrity of the tank, prevents external substances from entering, and protects the sterile environment in the tank.
Smart Images
Figure CN222555400U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an easy-open cover, in particular to a light and thin easy-open cover with high pressure resistance. Background Art
[0002] The current easy-open lid generally includes a lid body and a pull ring. The lid body is provided with an annular score line, which is arranged along the edge of the lid surface on the lid body and forms a pull lid. The riveted end of the pull ring is riveted to the edge of the pull lid by rivets, and the open end of the pull ring is directly opposite to the annular score line. However, during the sterilization and cooling process of canned food, the existing easy-open lid forms a huge pressure difference inside and outside the can due to the temperature difference inside and outside the can. This pressure difference can cause the lid surface of the easy-open lid to deform, and in severe cases, it will affect the double-sealing structure, making it easy for substances outside the can to enter the can body, destroying the commercial sterile environment inside the can and causing the food inside the can to deteriorate. Utility Model Content
[0003] The problem to be solved by the utility model is to provide a light and thin easy-to-open cover with high pressure resistance, and the light and thin easy-to-open cover can improve the pressure resistance performance of the cover surface.
[0004] In order to solve the above technical problems, the technical solutions adopted by the utility model are as follows:
[0005] A highly pressure-resistant, thin, easy-to-open cover comprises a cover body and a pull ring, wherein the cover body is provided with an annular score line, which is arranged on the cover body along the edge of the cover surface and forms a pull cover, the riveted end of the pull ring is riveted to the edge of the pull cover by a rivet, and the open end of the pull ring is directly opposite to the annular score line, and is characterized in that: the cover body is provided with an embedded ring, a first reinforcing rib, a second reinforcing rib, a third reinforcing rib, and a fourth reinforcing rib in sequence from the outside to the inside, the embedded ring protrudes downward and is located on the outside of the annular score line, the first reinforcing rib protrudes downward and is located in the annular score line, the second reinforcing rib protrudes toward the center of the cover body and is located in the first reinforcing rib, the third reinforcing rib protrudes toward the center of the cover body and is located in the second reinforcing rib, and the fourth reinforcing rib protrudes toward the center of the cover body and is located in the third reinforcing rib.
[0006] A downwardly protruding embedded ring and a downwardly protruding first reinforcing rib are arranged near the annular score line where the easy-open cover is weak and easily deformed by force, so as to strengthen the force near the annular score line; a second reinforcing rib protruding toward the center of the cover body, a third reinforcing rib protruding toward the center of the cover body, and a fourth reinforcing rib protruding toward the center of the cover body are arranged at the easily deformed position in the center of the cover body, forming a bending stress structure arranged on the cover surface, which can strengthen the force in the center of the cover body and improve the pressure resistance of this thin and light easy-open cover.
[0007] In a preferred embodiment, the first reinforcing rib, the second reinforcing rib, the third reinforcing rib and the fourth reinforcing rib are all annular reinforcing ribs. The ends of the annular reinforcing ribs are connected to each other to form an integral structure, which can evenly distribute stress on the reinforcing ribs and increase the stability of the cover.
[0008] In a further preferred embodiment, the first reinforcing rib is provided with a first annular slope gradually sloping upward from the inside to the outside on the outer side, and a second annular slope gradually sloping upward from the outside to the inside on the inner side. The downwardly protruding first reinforcing rib formed by the first annular slope and the second annular slope can change the force transmission mode, make the force more uniform, reduce the concentration of stress at a specific point, and reduce the risk of the cover body breaking.
[0009] In a further preferred embodiment, the second reinforcing rib forms a third annular inclined surface on the cover body that gradually slopes downward from the outside to the inside, the third reinforcing rib forms a fourth annular inclined surface on the cover body that gradually slopes downward from the outside to the inside, and the fourth reinforcing rib forms a fifth annular inclined surface on the cover body that gradually slopes downward from the outside to the inside. By providing inclined surfaces that gradually slope toward the center of the cover body, the stress concentration on the cover body can be effectively dispersed and relieved, so that during the sterilization and cooling process, 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 these inclined surfaces, reducing the overall deformation of the cover body and maintaining the structural integrity of the cover body.
[0010] In a further preferred embodiment, a first annular plane is provided between the second annular bevel and the third annular bevel, a second annular plane is provided between the third annular bevel and the fourth annular bevel, a third annular plane is provided between the fourth annular bevel and the fifth annular bevel, the inner area of the fifth annular bevel is the 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.
[0011] In a further preferred embodiment, the lifting end of the pull ring is located above the third annular plane and the fourth plane. As the heights of the third annular plane and the fourth plane gradually decrease inward, some space is left below the lifting end of the pull ring, making it convenient for fingers to pull up the pull ring.
[0012] In a further preferred embodiment, two positioning notches are provided on the lower end surface of the pull ring, and two arc-shaped reinforcing ribs corresponding to the positioning notches are provided on the third annular plane. The pull ring is located between the two arc-shaped reinforcing ribs, and the arc-shaped reinforcing ribs are respectively located on the outside of the corresponding positioning notches, and the arc-shaped reinforcing ribs extend from the inside to the outside along the pull ring. Since the positioning notches on the lower end surface of the pull ring are relatively sharp, the arc-shaped reinforcing ribs are arranged on the outside of the corresponding positioning notches, which can not only play the role of edge protection to prevent the positioning notches of the pull ring from scratching fingers, but also further position the pull ring, making its riveting more stable and difficult to rotate around the rivet. In addition, the above two arc-shaped reinforcing ribs can strengthen the force-bearing parts of the cover to the maximum extent, making it easier to open.
[0013] In a preferred embodiment, a U-shaped reinforcement rib with an opening facing outward is provided near the rivet at the second reinforcement rib, and the rivet is located in the opening of the U-shaped reinforcement rib. This design can effectively enhance the structural stability of the cover surface around the rivet. When the easy-open cover is opened, the cover surface around the rivet will be subjected to a large tensile force, and the U-shaped reinforcement rib can disperse the stress concentration at the rivet to prevent the rivet from loosening or falling off.
[0014] Compared with the prior art, the utility model has the following advantages:
[0015] The utility model increases the pressure resistance of the light and thin easy-to-open cover by adding a bending stress structure on the cover surface to strengthen the force on the center of the cover body. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a structural schematic diagram of a specific embodiment 1 of the utility model;
[0017] Figure 2 yes Figure 1 Schematic diagram of the cross section of AA. DETAILED DESCRIPTION
[0018] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
[0019] like Figure 1-2As shown, the high pressure-resistant thin and easy-open cover in this embodiment includes a cover body 1 and a pull ring 2. The cover body 1 is provided with an annular score line 11, which is arranged on the cover body 1 along the edge of the cover surface and constitutes a pull cover. The riveted end 21 of the pull ring 2 is riveted to the edge of the pull cover by rivets, and the open end 22 of the pull ring 2 is directly opposite to the annular score line 11; the cover body 1 is provided with an embedded ring 12, a first reinforcing rib 13, a second reinforcing rib 14, a third reinforcing rib 15, and a fourth reinforcing rib 16 from the outside to the inside, the embedded ring 12 protrudes downward and is located on the outside of the annular score line 11, the first reinforcing rib 13 protrudes downward and is located in the annular score line 11, the second reinforcing rib 14 protrudes toward the center of the cover body 1 and is located in the first reinforcing rib 13, the third reinforcing rib 15 protrudes toward the center of the cover body 1 and is located in the second reinforcing rib 14, and the fourth reinforcing rib 16 protrudes toward the center of the cover body 1 and is located in the third reinforcing rib 15.
[0020] A downwardly protruding embedded ring 12 and a downwardly protruding first reinforcing rib 13 are arranged near the annular score line 11 where the easy-open cover is weak and easily deformed by force, so as to strengthen the force near the annular score line 11; a second reinforcing rib 14 protruding toward the center of the cover body 1, a third reinforcing rib 15 protruding toward the center of the cover body 1, and a fourth reinforcing rib 16 protruding toward the center of the cover body 1 are arranged at a position at the center of the cover body 1 that is easy to deform, forming a bending stress structure arranged on the cover surface, which can strengthen the force at the center of the cover body 1 and improve the pressure resistance of this thin and light easy-open cover.
[0021] The first reinforcing rib 13, the second reinforcing rib 14, the third reinforcing rib 15, and the fourth reinforcing rib 16 are all annular reinforcing ribs. The ends of the annular reinforcing ribs are connected to each other to form an integral structure, which can evenly distribute stress on the reinforcing ribs and increase the stability of the cover 1.
[0022] A first annular slope 131 which gradually slopes upward from the inside to the outside is provided on the outer side of the first reinforcing rib 13, and a second annular slope 132 which gradually slopes upward from the outside to the inside is provided on the inner side of the first reinforcing rib 13. The downwardly protruding first reinforcing rib 13 formed by the first annular slope 131 and the second annular slope 132 can change the force transmission mode, make the force more uniform, reduce the concentration of stress at a specific point, and reduce the risk of the cover body 1 breaking.
[0023] The second reinforcing rib 14 forms a third annular inclined surface 141 on the cover body 1 that gradually slopes downward from the outside to the inside, the third reinforcing rib 15 forms a fourth annular inclined surface 151 on the cover body 1 that gradually slopes downward from the outside to the inside, and the fourth reinforcing rib 16 forms a fifth annular inclined surface 161 on the cover body 1 that gradually slopes downward from the outside to the inside. By providing an inclined surface that gradually slopes toward the center of the cover body 1, the stress concentration on the cover body 1 can be effectively dispersed and relieved, so that during the sterilization and cooling process, 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 these inclined surfaces, reducing the overall deformation of the cover body 1 and maintaining the structural integrity of the cover body 1.
[0024] A first annular plane 133 is provided between the second annular bevel 132 and the third annular bevel 141, a second annular plane 142 is provided between the third annular bevel 141 and the fourth annular bevel 151, a third annular plane 152 is provided between the fourth annular bevel 151 and the fifth annular bevel 161, the inner area of the fifth annular bevel 161 is the fourth plane 162, the first annular plane 133 is higher than the second annular plane 142, the second annular plane 142 is higher than the third annular plane 152, and the third annular plane 152 is higher than the fourth plane 162. Through this arrangement, the heights of the first annular plane 133, the second annular plane 142, the third annular plane 152, and the fourth plane 162 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.
[0025] The lifting end 23 of the pull ring 2 is above the third annular plane 152 and the fourth plane 162. As the heights of the third annular plane 152 and the fourth plane 162 gradually decrease inward, some space is left below the lifting end 23 of the pull ring 2, making it convenient for fingers to pull up the pull ring 2.
[0026] Two positioning notches 231 are arranged on the lower end surface of the lifting end 23 of the pull ring 2, and two arc-shaped reinforcing ribs 17 corresponding to the positioning notches 231 are arranged on the third annular plane 152. The lifting end 23 of the pull ring 2 is located between the two arc-shaped reinforcing ribs 17, and the arc-shaped reinforcing ribs 17 are respectively located on the outside of the corresponding positioning notches 231, and the arc-shaped reinforcing ribs 17 extend from the inside to the outside along the lifting end 23 of the pull ring 2. Since the positioning notches 231 on the lower end surface of the lifting end 23 of the pull ring 2 are relatively sharp, the arc-shaped reinforcing ribs 17 are arranged on the outside of the corresponding positioning notches 231, which can not only play the role of edge protection to prevent the positioning notches 231 of the pull ring 2 from scratching fingers, but also can further position the pull ring 2, making its riveting more stable and difficult to rotate around the rivet. In addition, the above two arc-shaped reinforcing ribs 17 can strengthen the force-bearing parts of the cover to the maximum extent, making it easier to open.
[0027] The second reinforcing rib 14 is provided with a U-shaped reinforcing rib 143 with an opening facing outward near the rivet, and the rivet is located in the opening of the U-shaped reinforcing rib 143. This design can effectively enhance the structural stability of the cover surface around the rivet. When the easy-open cover is opened, the cover surface around the rivet will be subjected to a large tensile force, and the U-shaped reinforcing rib 143 can disperse the stress concentration at the rivet to prevent the rivet from loosening or falling off.
[0028] 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 thin and easy-open lid with high pressure resistance, comprising a lid body and a pull ring, wherein the lid body is provided with an annular score line, the annular score line is arranged on the lid body along the edge of the lid surface and forms a pull lid, the riveted end of the pull ring is riveted to the edge of the pull lid by a rivet, and the open end of the pull ring is directly opposite to the annular score line, characterized in that: The cover body is provided with an embedded ring, a first reinforcing rib, a second reinforcing rib, a third reinforcing rib and a fourth reinforcing rib in sequence from the outside to the inside. The embedded ring protrudes downward and is located on the outside of the annular score line, the first reinforcing rib protrudes downward and is located in the annular score line, the second reinforcing rib protrudes toward the center of the cover body and is located in the first reinforcing rib, the third reinforcing rib protrudes toward the center of the cover body and is located in the second reinforcing rib, and the fourth reinforcing rib protrudes toward the center of the cover body and is located in the third reinforcing rib.
2. The high pressure-resistant thin easy-open cover according to claim 1, characterized in that: The first reinforcing rib, the second reinforcing rib, the third reinforcing rib and the fourth reinforcing rib are all annular reinforcing ribs.
3. The high pressure-resistant thin easy-open cover according to claim 2, characterized in that: A first annular slope which gradually slopes upward from the inside to the outside is provided on the outer side edge of the first reinforcing rib, and a second annular slope which gradually slopes upward from the outside to the inside is provided on the inner side edge of the first reinforcing rib.
4. The high pressure-resistant thin easy-open cover according to claim 3, characterized in that: The second reinforcing rib forms a third annular slope on the cover body that gradually slopes downward from the outside to the inside, the third reinforcing rib forms a fourth annular slope on the cover body that gradually slopes downward from the outside to the inside, and the fourth reinforcing rib forms a fifth annular slope on the cover body that gradually slopes downward from the outside to the inside.
5. The high pressure-resistant thin easy-open cover according to claim 4, characterized in that: A first annular plane is provided between the second annular slope and the third annular slope, a second annular plane is provided between the third annular slope and the fourth annular slope, a third annular plane is provided between the fourth annular slope and the fifth annular slope, an inner area of the fifth 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.
6. The high pressure-resistant thin easy-open cover according to claim 5, characterized in that: The lifting end of the pull ring is located above the third annular plane and the fourth plane.
7. The high pressure-resistant thin easy-open cover according to claim 5, characterized in that: Two positioning notches are provided on the lower end surface of the pulling end of the pull ring, and two arc-shaped reinforcing ribs corresponding to the positioning notches are provided on the third annular plane. The pulling end of the pull ring is located between the two arc-shaped reinforcing ribs, and the arc-shaped reinforcing ribs are respectively located on the outside of the corresponding positioning notches, and the arc-shaped reinforcing ribs extend from the inside to the outside along the pulling end of the pull ring.
8. The high pressure-resistant thin easy-open cover according to claim 1, characterized in that: A U-shaped reinforcement rib with an outward opening is provided at a position of the second reinforcement rib close to the rivet, and the rivet is located in the opening of the U-shaped reinforcement rib.