Easy-open lid

Abstract

The utility model discloses an easy-open lid which comprises a lid body. A pressure-resistant area, a transition area and a pull ring area are arranged on the cover body, the pull ring area is arranged at the position, close to the edge, of the cover body, a pull ring structure is arranged on the pull ring area, the transition area is arranged on the peripheral side of the pull ring area, the pressure-resistant area is arranged on the peripheral side of the transition area, and a force rib structure is arranged on the pressure-resistant area. The easy-open lid has the advantages that during heating, the pull ring structure is not prone to being affected by pressure resistance of the force rib structure, so that the pull ring structure is not prone to being damaged, the pull ring structure is protected, and the service life of the easy-open lid is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of packing jar, especially a pop -on lid. BACKGROUND

[0002] In the field of food packaging, in order to facilitate storage, transportation and access to food, pop -on jar is the first common choice. Pop -on jar is generally used to package instant food, and its processing process is as follows: first, raw food is put into the jar body of pop -on jar, then pop -on cover is sealed, and finally pop -on jar with food is heated together, and the raw food in the jar body is cooked.

[0003] After raw food is loaded into the jar body, the depth of raw food is less than the height of the inside of the jar body, to reserve space for the expansion of air inside the pop -on jar during heating. In recent years, the development trend of the jar body of pop -on jar is: the height is unchanged, and the inner diameter is reduced as much as possible. Under this development trend, if the same amount of raw food is still loaded into the jar body, the reserved space for the expansion of air inside the pop -on jar during heating will be reduced, and the pressure on the pop -on cover during heating will be increased. The existing pop -on cover generally has a reinforcing rib for strengthening the pressure resistance and shape recovery ability of the pop -on cover. The reinforcing rib generally passes through the position of the pull ring, which is the weakest link on the pop -on cover. If the pressure on the pop -on cover increases, the pressure on the reinforcing rib will also increase, making the pull ring on the pop -on cover easy to be damaged. SUMMARY

[0004] The main purpose of the utility model is to provide a pop -on cover, which aims to solve the technical problem that the pull ring structure on the pop -on cover is easy to be damaged in the prior art.

[0005] To achieve the above purpose, the utility model provides a pop -on cover, which comprises a cover body. The cover body is provided with a compression resistance area, a transition area and a pull ring area. The pull ring area is arranged at the position close to the edge of the cover body. The pull ring area is provided with a pull ring structure. The transition area is arranged on the side of the pull ring area. The compression resistance area is arranged on the side of the transition area. The compression resistance area is provided with a reinforcing rib structure.

[0006] The utility model has the beneficial effects that: the transition area is arranged between the pull ring area provided with the pull ring structure and the compression resistance area provided with the reinforcing rib structure. Even if the pop -on cover is subjected to the pressure of heated air in the pop -on jar during heating of the pop -on jar and raw food, the reinforcing rib structure can resist the pressure. Because the transition area is arranged between the pull ring area provided with the pull ring structure and the compression resistance area, the distance between the pull ring structure and the reinforcing rib structure is far, so that the pull ring structure is not easy to be affected by the reinforcing rib structure during pressure resistance, and thus the pull ring structure is not easy to be damaged. Therefore, the pull ring structure is protected, and the service life of the pop -on cover is prolonged.

[0007] Preferably, the rib structure includes at least one rib, which is arc-shaped and extends around the center of the cover. Both ends of the rib are connected to the edge of the transition zone, so that the strength of each part of the easy-open cover is uniform, which is more conducive to improving the quality of the easy-open cover and extending its service life.

[0008] Preferably, the cover has three ribs, which are arranged at intervals from the inside to the outside along the radial direction of the cover, so that the pull ring area and the transition area are not easily damaged by pressure even if no support structure is provided.

[0009] Preferably, the three reinforcing ribs are designated as the first reinforcing rib, the second reinforcing rib, and the third reinforcing rib from the outside to the inside. The cover between the edge of the cover and the first reinforcing rib is called the first pressure-resistant zone, the cover between the first and second reinforcing ribs is called the second pressure-resistant zone, the cover between the second and third reinforcing ribs is called the third pressure-resistant zone, and the cover inside the third reinforcing rib is called the fourth pressure-resistant zone. The first, second, third, and fourth pressure-resistant zones are arranged sequentially from the front to the back of the cover, so that the three reinforcing ribs and the easy-open cover are subjected to uniform force, making it less likely to damage the easy-open cover.

[0010] Preferably, the width d1 of the first reinforcing bar is 5.3 to 5.5 mm, the width d2 of the second reinforcing bar is 4.2 to 4.5 mm, and the width d3 of the third reinforcing bar is 2.8 to 3.0 mm.

[0011] Preferably, the height h1 of the first rib is 0.25-0.4 mm, the height h2 of the second rib is 0.2-0.35 mm, and the height h3 of the third rib is 0.2-0.25 mm.

[0012] Preferably, the arc r corresponding to the force reinforcement is 240° to 320°.

[0013] Preferably, the reinforcing ribs are symmetrical about the line connecting the center of the pull ring structure and the center of the cover, which is beneficial to improving production efficiency and aesthetics.

[0014] Preferably, the distance L between the outer edge of the transition zone and the side edge of the pull ring zone is 5.65 to 8 mm, and the two ends of the reinforcing rib are respectively connected to the two opposite outer edges of the transition zone. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1This is a schematic diagram of the partitioning of the easy-open cover in an embodiment of this utility model;

[0017] Figure 2 This is a schematic diagram of the easy-open cover in an embodiment of the present utility model;

[0018] Figure 3 This is a schematic diagram of the curvature of the first force rib of the easy-open cover in an embodiment of this utility model;

[0019] Figure 4 This is a schematic diagram of the curvature of the second force rib of the easy-open cover in an embodiment of this utility model;

[0020] Figure 5 This is a schematic diagram of the curvature of the third force rib of the easy-open cover in an embodiment of this utility model;

[0021] Figure 6 This is a cross-sectional view of the easy-open cover in an embodiment of this utility model.

[0022] In the attached diagram: 1-cover, 2-pull ring area, 3-transition area, 4-compression-resistant area, 41-first compression-resistant zone, 42-second compression-resistant zone, 43-third compression-resistant zone, 44-fourth compression-resistant zone, 5-pull ring structure, 6-stiffening rib structure, 61-first stiffening rib, 62-second stiffening rib, 63-third stiffening rib.

[0023] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] It should be noted that if the embodiments of this utility model involve directional indicators, such as up, down, left, right, front, back, etc., the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0026] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0027] like Figures 1 to 6 As shown, an easy-open lid includes a lid body 1; the lid body 1 is provided with a pressure-resistant area 4, a transition area 3 and a pull ring area 2, the pull ring area 2 is located near the edge of the lid body 1, the pull ring area 2 is provided with a pull ring structure 5, the transition area 3 is located around the pull ring area 2, the pressure-resistant area 4 is located around the transition area 3, and the pressure-resistant area 4 is provided with a rib structure 6.

[0028] A transition zone 3 separates the pull-ring area 2 (where the pull-ring structure 5 is located) from the pressure-resistant area 4 (where the reinforcing rib structure 6 is located). When heating the can and raw food, even if the can lid is subjected to pressure from the heated air inside the can, the reinforcing rib structure 6 can withstand the pressure. Since the transition zone 3 is provided between the pull-ring area 2 (where the pull-ring structure 5 is located) and the pressure-resistant area 4, the distance between the pull-ring structure 5 and the reinforcing rib structure 6 is relatively far. This makes the pull-ring structure 5 less susceptible to the collateral effects caused by the pressure resistance of the reinforcing rib structure 6, and therefore less prone to damage. This helps protect the pull-ring structure 5 and extends the service life of the can lid.

[0029] Compared to existing easy-open can structures, the easy-open can in this embodiment, while ensuring sufficient pressure resistance, can better protect the weakest part of the can, the pull ring structure 5. Therefore, even if future developments reduce the space reserved for the expansion of air inside the can during heating, the easy-open can in this embodiment will not be damaged, thus extending its service life.

[0030] In some specific embodiments, reference is made to Figure 1 and Figure 2 The rib structure 6 includes at least one rib, which is arc-shaped and extends around the center of the cover 1. Both ends of the rib are connected to the edge of the transition zone 3.

[0031] The ribs are designed as arcs extending around the center of the cover body 1, which allows the ribs to support more parts of the cover body 1. This ensures that all parts of the easy-open cover are protected as much as possible during heating, and makes the strength of each part of the easy-open cover uniform. This is more conducive to improving the quality of the easy-open cover and extending its service life.

[0032] Both ends of the reinforcing bar are connected to the edge of the transition zone 3, which is intended to maximize the protection range of the reinforcing bar while protecting the pull ring structure 5.

[0033] In some specific embodiments, reference is made to Figure 2 The cover 1 has three ribs, which are arranged at intervals from the inside to the outside along the radial direction of the cover 1.

[0034] Generally, easy-open lids only have two ribs. However, the easy-open lid in this embodiment is designed to withstand gas pressure during heating, even with a reduced inner diameter and space in the can. Therefore, three ribs enhance the strength of the easy-open lid and better adapt to the development of cans. Furthermore, since the pull ring area 2 and transition area 3 lack ribs or other supporting structures, the three ribs also compensate for this lack of support, making the pull ring area 2 and transition area 3 less prone to damage under pressure even without supporting structures.

[0035] In some specific embodiments, reference is made to Figure 2 The three reinforcing ribs, from the outside to the inside, are the first reinforcing rib 61, the second reinforcing rib 62, and the third reinforcing rib 63. The cover 1 between the edge of the cover 1 and the first reinforcing rib 61 is called the first compressive strength zone 41. The cover 1 between the first reinforcing rib 61 and the second reinforcing rib 62 is called the second compressive strength zone 42. The cover 1 between the second reinforcing rib 62 and the third reinforcing rib 63 is called the third compressive strength zone 43. The cover 1 inside the third reinforcing rib 63 is called the fourth compressive strength zone 44. The first compressive strength zone 41, the second compressive strength zone 42, the third compressive strength zone 43, and the fourth compressive strength zone 44 are arranged sequentially from the front to the back of the cover 1.

[0036] The first pressure-resistant zone 41, the second pressure-resistant zone 42, the third pressure-resistant zone 43, and the fourth pressure-resistant zone 44 are arranged sequentially from the front to the back of the cover 1, dividing the pressure-resistant area 4 into four smaller pressure-resistant zones. The four pressure-resistant zones and the three force ribs are distributed relatively evenly, which can distribute the pressure on the pressure-resistant area 4 relatively evenly on the three force ribs, so that the three force ribs and the easy-open cover are subjected to uniform force, making it less likely to damage the easy-open cover.

[0037] The first pressure-resistant zone 41, the second pressure-resistant zone 42, the third pressure-resistant zone 43, and the fourth pressure-resistant zone 44 are arranged sequentially from the front to the back of the lid 1, so that the vertical support function of the ribs can be fully utilized. Taking the fourth pressure-resistant zone 44 as an example, when the can is heated or raw food is heated, the lid is compressed, and the fourth pressure-resistant zone 44 is subjected to upward pressure. The third rib 63 has a certain height and can provide sufficient vertical support for the fourth pressure-resistant zone 44, making it difficult for the fourth pressure-resistant zone 44 to shift upward.

[0038] As described above, another beneficial effect is that even when the pressure on the lid is too great during the heating of the can and raw food, causing the pressure-resistant section to move upward a certain distance, the pressure-resistant section can be easily reset after the air inside the can cools down, since the three ribs have divided the lid into several smaller pressure-resistant sections. In other words, the lid has a strong ability to reset and deform.

[0039] In some specific embodiments, reference is made to Figure 2 The width d1 of the first reinforcing bar 61 is 5.3-5.5 mm, the width d2 of the second reinforcing bar 62 is 4.2-4.5 mm, and the width d3 of the third reinforcing bar 63 is 2.8-3.0 mm.

[0040] Through numerous experiments, it was found that when the width of each reinforcing rib is set as described above, the easy-open cover has strong compressive strength.

[0041] In some specific embodiments, reference is made to Figure 6 The height h1 of the first rib 61 is 0.25-0.4 mm, the height h2 of the second rib 62 is 0.2-0.35 mm, and the height h3 of the third rib 63 is 0.2-0.25 mm.

[0042] Through numerous experiments, it was found that when the height of each reinforcing rib is set as described above, the easy-open cover has strong compressive strength.

[0043] In some specific embodiments, reference is made to Figures 3 to 5 The radius r corresponding to the force reinforcement is 240° to 320°.

[0044] Specifically, the first rib 61 has an arc r1 of 315°, the second rib 62 has an arc r2 of 290°, and the third rib 63 has an arc r3 of 245°. After multiple experiments, the easy-open lid has the strongest compressive strength when the arcs r of the three ribs are as described above.

[0045] In some specific embodiments, the reinforcing ribs are symmetrical about the line connecting the center of the pull ring structure 5 and the center of the cover 1.

[0046] This arrangement facilitates the regular arrangement of the pull ring structure 5 and the force ribs, which is beneficial to improving production efficiency and aesthetics.

[0047] In some specific embodiments, reference is made to Figure 1 The distance L between the outer edge of the transition zone 3 and the side edge of the pull ring zone 2 is 5.65 to 8 mm, and the two ends of the reinforcing bar are respectively connected to the two opposite outer edges of the transition zone 3.

[0048] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A pop-up lid characterized in that: The cover (1) is provided with a compression-resistant area (4), a transition area (3) and a pull ring area (2). The pull ring area (2) is provided with a pull ring structure (5), the transition area (3) is provided on the periphery of the pull ring area (2), and the compression-resistant area (4) is provided on the periphery of the transition area (3), and the compression-resistant area (4) is provided with a reinforcing structure (6).

2. A popper as claimed in claim 1, characterized in that: The reinforcing structure (6) comprises at least one reinforcing rib, which is in the shape of a circular arc and extends around the center of the cover (1), and both ends of the reinforcing rib are connected to the edges of the transition area (3).

3. A snap-on cap according to claim 2, characterized in that: The cover (1) is provided with three reinforcing ribs, which are arranged from inside to outside along the radial direction of the cover (1).

4. A snap-on cap according to claim 3, characterized in that: The three reinforcing ribs are respectively a first reinforcing rib (61), a second reinforcing rib (62) and a third reinforcing rib (63), the cover (1) between the edge of the cover (1) and the first reinforcing rib (61) is called a first compression-resistant sub-area (41), the cover (1) between the first reinforcing rib (61) and the second reinforcing rib (62) is called a second compression-resistant sub-area (42), the cover (1) between the second reinforcing rib (62) and the third reinforcing rib (63) is called a third compression-resistant sub-area (43), and the cover (1) inside the third reinforcing rib (63) is called a fourth compression-resistant sub-area (44), and the first compression-resistant sub-area (41), the second compression-resistant sub-area (42), the third compression-resistant sub-area (43) and the fourth compression-resistant sub-area (44) are arranged in sequence from the front surface to the back surface of the cover (1).

5. A snap-on lid according to claim 4, characterized in that: The width d1 of the first reinforcing rib (61) is 5.3-5.5 mm, the width d2 of the second reinforcing rib (62) is 4.2-4.5 mm, and the width d3 of the third reinforcing rib (63) is 2.8-3.0 mm.

6. A snap-on lid as claimed in claim 4 or 5, characterized in that: The height h1 of the first reinforcing rib (61) is 0.25-0.4 mm, the height h2 of the second reinforcing rib (62) is 0.2-0.35 mm, and the height h3 of the third reinforcing rib (63) is 0.2-0.25 mm.

7. The popper of claim 2, wherein: The corresponding arc r of the reinforcing rib is 240-320°.

8. The popper of claim 2, wherein: The reinforcing rib is symmetrical about the line connecting the center of the pull ring structure (5) and the center of the cover (1).

9. The popper of claim 2, wherein: The distance L between the outer side of the transition area (3) and the side of the pull ring area (2) is 5.65-8 mm, and both ends of the reinforcing rib are connected to the opposite outer sides of the transition area (3).

Images