Pressure-resistant easy-open lid with high-strength structure

Abstract

The utility model discloses a kind of pressure-resistant easy-open cover with high-strength structure, including cover and pull ring, annular score line is equipped on cover, annular score line is set on cover along cover surface edge and constitutes a pull cover, riveting end of pull ring is riveted with the edge of pull cover by rivet, and opening end of pull ring is opposite to annular score line;Its characterized in that: first reinforcing rib, second reinforcing rib, third reinforcing rib that are successively provided from outside to inside on the cover are upwardly protruding, first reinforcing rib is at the inboard of annular score line, the height of upward protrusion of first reinforcing rib, second reinforcing rib, third reinforcing rib gradually decreases from outside to inside in turn, the height of upward protrusion of third reinforcing rib is greater than 0.50mm;Riveting flat surface is equipped between the both ends of first reinforcing rib, and the riveting end of pull ring is on riveting flat surface.This pressure-resistant easy-open cover can improve cover surface strength, so that the overall pressure resistance of easy-open cover is improved.

Description

Technical Field

[0001] This utility model relates to an easy-open lid, and more particularly to a pressure-resistant easy-open lid with a high-strength structure. Background Technology

[0002] With the increasing demands for safety and lightweight design in the food packaging industry, traditional easy-open lids are facing challenges due to insufficient pressure resistance. While reinforcing the lid surface can increase its strength and pressure resistance without increasing material thickness or hardness, the traditional method of forming these reinforcing ribs involves first stamping the base lid, resulting in a flat surface (e.g., ...). Figure 6 As shown, there are no reinforcing ribs. Then, the reinforcing rib structure is formed and the pull ring is riveted on the cover surface of the base cover through secondary processing. This secondary forming method can only be formed by stretching the base cover material. The shape and height of the reinforcing ribs are limited. Generally, the height of the reinforcing ribs can only reach about 0.40mm, which has a limited effect on improving the strength of the cover surface and the overall pressure resistance. If the height of the reinforcing ribs is further increased, the material will be overstretched, causing coating damage or even material cracking. Utility Model Content

[0003] The problem to be solved by this utility model is to provide a pressure-resistant easy-open cap with a high-strength structure. This pressure-resistant easy-open cap can improve the strength of the cap surface and improve the overall pressure resistance of the easy-open cap.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] A pressure-resistant easy-open lid with a high-strength structure includes a lid body and a pull ring. The lid body has an annular groove line, which runs along the edge of the lid surface and forms a pull ring. The riveting end of the pull ring is riveted to the edge of the pull ring by a rivet, and the opening end of the pull ring is directly opposite the annular groove line. The lid body is characterized by having three upwardly protruding reinforcing ribs arranged sequentially from the outside to the inside: a first reinforcing rib, a second reinforcing rib, and a third reinforcing rib. The first reinforcing rib is located inside the annular groove line. The upward protrusion height of the first, second, and third reinforcing ribs gradually decreases from the outside to the inside, with the upward protrusion height of the third reinforcing rib being greater than 0.50 mm. A riveting plane is provided between the two ends of the first reinforcing rib, and the riveting end of the pull ring is located on the riveting plane.

[0006] When processing this pressure-resistant easy-open cap, the cap body is first stamped to form a cap with a first reinforcing rib, a second reinforcing rib, and a third reinforcing rib. This allows the reinforcing rib structure to be stamped during the first forming of the cap body, and increases the upward protrusion height of each reinforcing rib to improve the strength of the cap surface. Since the pull ring riveting needs to be done on a flat surface, a second processing is performed on the cap surface before riveting the pull ring to create a riveting plane, so that the riveting plane is located between the two ends of the first reinforcing rib.

[0007] The one-time molding of each reinforcing rib in this utility model improves the strength of the cover surface during secondary processing, which helps to better shape the riveting plane and rivet the pull ring during secondary processing. It can avoid excessive stretching of the cover material, which may cause coating damage or even material cracking. It ensures the stability and reliability of pull ring riveting, and does not affect the role of the reinforcing rib in improving the strength and pressure resistance of the cover surface, thereby ensuring the overall quality and performance of the product.

[0008] The upward protrusion height of the first, second, and third reinforcing ribs gradually decreases from the outside to the inside, causing each reinforcing rib to tilt downwards as a whole. This forms a bending stress structure on the cover surface, which can strengthen the stress on the cover and reinforce the weak points of this easy-to-open cover, thereby improving the strength and pressure resistance of the cover surface.

[0009] In a preferred embodiment, the upward protrusion height of the third reinforcing rib is 0.50mm-1.20mm; the upward protrusion height of the second reinforcing rib is 1.20mm-1.50mm; and the upward protrusion height of the first reinforcing rib is 1.50mm-1.80mm. By increasing the upward protrusion height of each reinforcing rib, the strength of the cover surface can be improved.

[0010] In a further preferred embodiment, the upward protrusion height of the third reinforcing rib is 1.00 mm; the upward protrusion height of the second reinforcing rib is 1.30 mm; and the upward protrusion height of the first reinforcing rib is 1.60 mm.

[0011] In a preferred embodiment, the cover body has a downwardly protruding central reinforcing rib, which is located inside the third reinforcing rib. Because the upward protrusion height of the first, second, and third reinforcing ribs gradually decreases from the outside to the inside, and combined with the downwardly concave central reinforcing rib, the overall downward tilt of the cover surface becomes more pronounced, further improving the cover surface strength and pressure resistance.

[0012] In a further preferred embodiment, the downward protrusion height of the central reinforcing rib is 0.50mm-1.20mm.

[0013] In a further preferred embodiment, the downward protrusion height of the central reinforcing rib is 1.00 mm.

[0014] In a preferred embodiment, the riveting surface is provided with two upward-protruding eyebrow-shaped reinforcing ribs, which are respectively located on both sides of the opening end of the pull ring; the two eyebrow-shaped reinforcing ribs extend outward from both sides of the opening end of the pull ring. The two eyebrow-shaped reinforcing ribs can increase the strength of the riveting surface, thereby ensuring the success rate of pull ring riveting and the stability of the pull ring. When the pull ring is pulled upward to lift the cover, the eyebrow-shaped reinforcing ribs on both sides of the opening end of the pull ring position the opening end of the pull ring, preventing the pull ring from rotating and keeping the pull ring in a fixed position for opening.

[0015] In a preferred embodiment, the first reinforcing rib is C-shaped, and the riveted end of the pull ring is located in the opening of the first reinforcing rib.

[0016] In the preferred embodiment, both the second and third reinforcing ribs are annular in shape.

[0017] Compared with the prior art, this utility model has the following advantages:

[0018] This invention significantly improves the strength of the lid and the overall pressure resistance of the easy-open lid without increasing the thickness and hardness of the material, through innovative reinforcing rib structure design and molding method, thus meeting the food packaging industry's requirements for safety and lightweighting. Attached Figure Description

[0019] Figure 1 This is a structural schematic diagram of a specific embodiment of the present utility model;

[0020] Figure 2 yes Figure 1 A cross-sectional schematic diagram of AA in the middle;

[0021] Figure 3 yes Figure 2 Enlarged diagram of B in the middle;

[0022] Figure 4 This is a schematic diagram of the structure of the cover after it has been molded in one piece according to a specific embodiment of this utility model;

[0023] Figure 5 yes Figure 4 A schematic diagram of the structure of the middle cover body through secondary molding to create the riveting plane;

[0024] Figure 6 This is a schematic diagram of the structure of the base cover in the background technology of this utility model. Detailed Implementation

[0025] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0026] like Figure 1-5As shown, the pressure-resistant easy-open cover with high-strength structure in this embodiment includes a cover body 1 and a pull ring 2. The cover body 1 is provided with an annular scoring line 11, which is set along the edge of the cover surface and forms a pull cover 3. The riveting end 21 of the pull ring 2 is riveted to the edge of the pull cover 3 by a rivet 4, and the opening end 22 of the pull ring 2 is directly opposite to the annular scoring line 11. The cover body 1 is provided with a first reinforcing rib 12, a second reinforcing rib 13, and a third reinforcing rib 14 that protrude upwards from the outside to the inside. The first reinforcing rib 12 is located inside the annular scoring line 11. The upward protrusion height of the first reinforcing rib 12, the second reinforcing rib 13, and the third reinforcing rib 14 gradually decreases from the outside to the inside, and the upward protrusion height of the third reinforcing rib 14 is greater than 0.50 mm. A riveting plane 15 is provided between the two ends of the first reinforcing rib 12, and the riveting end 21 of the pull ring 2 is located on the riveting plane 15.

[0027] When processing this pressure-resistant easy-open cap, the cap body 1 with the first reinforcing rib 12, the second reinforcing rib 13, and the third reinforcing rib 14 on the cap surface is first stamped and formed, so that the reinforcing rib structure is stamped during the first forming of the cap body 1, and the upward protrusion height of each reinforcing rib is increased to improve the strength of the cap surface. Since the pull ring 2 needs to be riveted on a plane, the riveting plane 15 is first processed on the cap surface before riveting the pull ring 2, so that the riveting plane 15 is located between the two ends of the first reinforcing rib 12.

[0028] The one-time molding of each reinforcing rib of this utility model improves the strength of the cover surface during secondary processing, which helps to better form the riveting plane 15 and rivet the pull ring 2 during secondary processing. It can avoid excessive stretching of the cover material, which may cause coating damage or even material cracking. It not only ensures the stability and reliability of the riveting of the pull ring 2, but also does not affect the role of the reinforcing rib in improving the strength and pressure resistance of the cover surface, thereby ensuring the overall quality and performance of the product.

[0029] The upward protrusion height of the first reinforcing rib 12, the second reinforcing rib 13, and the third reinforcing rib 14 gradually decreases from the outside to the inside, so that each reinforcing rib as a whole has a downward tilting trend, forming a bending stress structure set on the cover surface, which can strengthen the stress of the cover body 1, and strengthen the weak position of this easy-to-open cover, thereby improving the strength and pressure resistance of the cover surface.

[0030] The upward protrusion height of the third reinforcing rib 14 is 1.00 mm; the upward protrusion height of the second reinforcing rib 13 is 1.30 mm; and the upward protrusion height of the first reinforcing rib 12 is 1.60 mm. By increasing the upward protrusion height of each reinforcing rib, the strength of the cover surface can be improved.

[0031] The cover 1 has a downwardly protruding central reinforcing rib 16 at its center, which is located inside the third reinforcing rib 14. Since the upward protrusion height of the first reinforcing rib 12, the second reinforcing rib 13, and the third reinforcing rib 14 gradually decreases from the outside to the inside, and with the addition of the downwardly concave central reinforcing rib 16, the overall downward tilt of the cover surface is more obvious, further improving the strength and pressure resistance of the cover surface.

[0032] The downward protrusion height of the central reinforcing rib 16 is 1.00mm.

[0033] The riveting plane 15 is provided with two upward-protruding eyebrow-shaped reinforcing ribs 17, which are respectively located on both sides of the opening end 22 of the pull ring 2; the two eyebrow-shaped reinforcing ribs 17 extend outward from both sides of the opening end 22 of the pull ring 2. The two eyebrow-shaped reinforcing ribs 17 can increase the strength of the riveting plane 15, thereby ensuring the success rate of riveting the pull ring 2 and the stability of the pull ring 2. When the pull ring 2 is pulled upward to lift the cover 3, the eyebrow-shaped reinforcing ribs 17 on both sides of the opening end 22 of the pull ring 2 position the opening end 22 of the pull ring 2, preventing the pull ring 2 from rotating and keeping the pull ring 2 in a fixed position for opening.

[0034] The first reinforcing rib 12 is C-shaped, and the riveting end 21 of the pull ring 2 is located in the opening of the first reinforcing rib 12.

[0035] The second reinforcing rib 13 and the third reinforcing rib 14 are both annular in shape.

[0036] Furthermore, it should be noted that the names of the various parts of the specific embodiments described in this specification may differ. All equivalent or simple variations made to the structure, features, and principles described in this utility model patent concept are included within the protection scope of this utility model patent. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not deviate from the structure of this utility model or exceed the scope defined in these claims, they should all fall within the protection scope of this utility model.

Claims

1. A pressure-resistant easy-open cap with a high-strength structure, comprising a cap body and a pull ring, wherein the cap body has an annular groove line, the annular groove line being set along the edge of the cap surface and forming a pull ring, the riveted end of the pull ring being riveted to the edge of the pull ring by a rivet, and the opening end of the pull ring being directly opposite the annular groove line; characterized in that: The cover is provided with a first reinforcing rib, a second reinforcing rib, and a third reinforcing rib that protrude upwards from the outside to the inside. The first reinforcing rib is located inside the annular groove line. The upward protrusion height of the first reinforcing rib, the second reinforcing rib, and the third reinforcing rib gradually decreases from the outside to the inside. The upward protrusion height of the third reinforcing rib is greater than 0.50 mm. A riveting plane is provided between the two ends of the first reinforcing rib, and the riveting end of the pull ring is located on the riveting plane.

2. The pressure-resistant easy-open cap with a high-strength structure as described in claim 1, characterized in that: The upward protrusion height of the third reinforcing rib is 0.50mm-1.20mm; the upward protrusion height of the second reinforcing rib is 1.20mm-1.50mm; and the upward protrusion height of the first reinforcing rib is 1.50mm-1.80mm.

3. The pressure-resistant easy-open cap with a high-strength structure as described in claim 2, characterized in that: The upward protrusion height of the third reinforcing rib is 1.00 mm; the upward protrusion height of the second reinforcing rib is 1.30 mm; and the upward protrusion height of the first reinforcing rib is 1.60 mm.

4. The pressure-resistant easy-open cap with a high-strength structure as described in any one of claims 1-3, characterized in that: The cover has a downward-protruding central reinforcing rib at its center, which is located inside the third reinforcing rib.

5. The pressure-resistant easy-open cap with a high-strength structure as described in claim 4, characterized in that: The downward protrusion height of the central reinforcing rib is 0.50mm-1.20mm.

6. The pressure-resistant easy-open cap with a high-strength structure as described in claim 5, characterized in that: The downward protrusion height of the central reinforcing rib is 1.00 mm.

7. The pressure-resistant easy-open cap with a high-strength structure as described in claim 1, characterized in that: The riveting plane is provided with two upward-protruding eyebrow-shaped reinforcing ribs, which are respectively located on both sides of the opening end of the pull ring; the two eyebrow-shaped reinforcing ribs extend outward from both sides of the opening end of the pull ring.

8. The pressure-resistant easy-open cap with a high-strength structure as described in claim 1, characterized in that: The first reinforcing rib is C-shaped, and the riveted end of the pull ring is located in the opening of the first reinforcing rib.

9. The pressure-resistant easy-open cap with a high-strength structure as described in claim 1, characterized in that: The second and third reinforcing ribs are both annular in shape.

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