Sealing inner cover easy to open

Abstract

The utility model discloses an easy-to-open sealing inner cover which comprises an inner cover body, the inner cover body is used for being arranged in an opening of a can body in a covering mode, the inner cover body comprises a cover bottom and a peripheral wall, the peripheral wall is arranged on the periphery of the cover bottom in a surrounding mode, and a concave cavity is formed between the cover bottom and the peripheral wall. The top of the peripheral wall extends towards the center of the top of the concave cavity to be provided with an inner edge, an inverted-L-shaped grabbing part is formed between the inner edge and the concave cavity, a flange extending outwards is arranged at the position, between the groove and the inner edge, of the outer wall of the peripheral wall, and the flange is matched with a can opening of the can body in a limiting mode. A plurality of grooves are formed in the outer wall of the peripheral wall at equal intervals in the circumferential direction, and the grooves extend to the lower portion of the peripheral wall from the bottom face of the flange, so that ventilation channels are formed between the grooves and the inner wall of the tank body. Secondary sealing is achieved through the inner cover, the cover is easy to open, and the sealing effect is good.

Description

Technical Field

[0001] This utility model relates to the technical field of packaging cans, and in particular to an easy-open sealing inner lid. Background Technology

[0002] Containers play an irreplaceable role in daily life. They are essential for storing everyday items such as rice, flour, condiments, tea, dried tangerine peel, and protein powder. Most containers have built-in sealing films, which are torn off before use. These films are disposable, and the seal is only partially effective after opening. The contents must be used within a normal timeframe. However, if the container is unused for an extended period due to reasons such as no one being home, it cannot be resealed, leading to moisture buildup, clumping, and damage, resulting in waste. This is a problem.

[0003] Some packaging containers use an inner lid for secondary sealing. This inner lid usually has an outward-flared edge around its perimeter, which engages with the can to create a secondary seal. However, there's no gap between the outward-flared edge and the can. Users have to use their fingernails to pry open the inner lid each time they open the can. If the inner lid fits too tightly, prying the outward-flared edge becomes very difficult and may even injure the fingernails. Conversely, a loose fit reduces the seal, leaving the contents vulnerable to moisture and spoilage. If a user has short fingernails, opening the can becomes even more difficult, often requiring them to pry the inner lid open from the outside. However, frequent prying and tugging can damage the seal between the outward-flared edge and the can, further reducing the seal's effectiveness. Utility Model Content

[0004] The technical problem to be solved by this utility model embodiment is to provide an easy-to-open sealing inner cover, which achieves secondary sealing by using the inner cover, making it not only easy to open but also having a good sealing effect.

[0005] To achieve the above objectives, this utility model discloses an easy-open sealing inner cap, comprising an inner cap body for covering the mouth of a can. The inner cap body includes a cap bottom and a peripheral wall. The peripheral wall surrounds the outer periphery of the cap bottom, forming a cavity between the cap bottom and the peripheral wall. An inner edge extends from the top of the peripheral wall toward the center of the top of the cavity, forming an inverted "L"-shaped gripping portion between the inner edge and the cavity. Furthermore, a plurality of grooves are equidistantly arranged on the outer wall of the peripheral wall along the circumferential direction, so that a breathable channel is formed between the grooves and the inner wall of the can.

[0006] Furthermore, the connection between the inner edge and the peripheral wall is a circular arc transition.

[0007] Furthermore, the outer wall of the peripheral wall is provided with an outwardly extending flange between the groove and the inner edge, and the flange is matched with the opening of the can body.

[0008] Furthermore, the groove extends from the bottom surface of the flange to the lower part of the peripheral wall.

[0009] Furthermore, the lower part of the outer wall of the peripheral wall is provided with a plurality of sealing protrusions at intervals along the height direction, and the sealing protrusions are airtightly fitted with the inner wall of the can opening.

[0010] Furthermore, the height between the bottom of the cover and the inner edge is 6mm-8mm, and the thickness of the inner edge is 0.5mm-0.75mm.

[0011] Furthermore, the width of the groove is 1mm-2.5mm, and the depth of the groove is 0.2mm-0.5mm.

[0012] Furthermore, a reinforcing part is formed by a downward protrusion at the center of the bottom surface of the cover, and the reinforcing part is in the shape of a ring.

[0013] Furthermore, the inner cover body is made of rubber.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] (1) The inner cover of this utility model can achieve secondary sealing. The inner cover has an inwardly extending protrusion on its peripheral wall, which makes it easier for the user to firmly grasp the inner edge when opening the inner cover, so that the user can better apply external force to the inner cover and make the inner cover easier to open. (2) Several grooves are provided on the peripheral wall, and outside air can quickly enter the inside of the tank through these ventilation channels to balance the air pressure difference between the inside and outside of the tank and avoid the situation that the tank is difficult to open due to negative pressure. (3) The sealing protrusion on the lower part of the outer wall of the peripheral wall and the airtight fit with the inner wall of the tank opening effectively prevent the leakage of the contents of the tank and the intrusion of external impurities, while reducing the friction between the peripheral wall and the inner wall of the tank opening, making the opening smoother. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0018] Figure 3 This is a top view of the overall structure of this utility model. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will provide a more detailed description of this utility model in conjunction with the accompanying drawings.

[0020] Reference Figure 1 As shown in Figure 2, an easy-open sealing inner cap includes an inner cap body 1, which is used to cover the opening of a can. In this embodiment, the inner cap body 1 is made of rubber, giving it a certain degree of flexibility and corrosion resistance. This allows it to not only fit tightly against the inner wall of the can opening, providing a good seal, but also to adapt to different types of can contents, whether acidic, alkaline, or other corrosive substances, without causing damage, thus ensuring the long-term performance of the inner cap.

[0021] The inner cover body 1 includes a bottom cover 11 and a peripheral wall 12. The peripheral wall 12 surrounds the outer periphery of the bottom cover 11, forming a cavity 13 between the bottom cover 11 and the peripheral wall 12. An inner edge 121 extends from the top of the peripheral wall 12 toward the center of the top of the cavity 13, forming an inverted "L"-shaped gripping part 131 between the inner edge 121 and the cavity 13, which facilitates the user's fingers to grip the inner edge 121 of the inner cover. An outwardly extending flange 123 is provided on the outer wall of the peripheral wall 12 between the groove 122 and the inner edge 121, so that after the inner cover body 1 is placed on the mouth of the can, the flange 123 is used to limit and cooperate with the edge of the mouth of the can.

[0022] In this embodiment, the height between the bottom 11 and the inner edge 121 is 6mm-8mm. This height range design facilitates the user to remove the inner cover body 1 from the mouth of the can through the inner edge 121, while ensuring that the inner cover body 1 and the mouth of the can have sufficient contact area to maintain good sealing performance. At the same time, the inverted "L"-shaped gripping part 131 has enough space for the user's fingers to insert into the recess and grip the inner edge 121, which makes it easier for the user to grip the inner edge 121 more firmly when opening the inner cover. This allows the user to better apply external force to the inner edge 121, improving the convenience and efficiency of opening the inner cover.

[0023] Even better, the connection between the inner edge 121 and the peripheral wall 12 is a rounded transition. On the one hand, in daily use, users may frequently open and close the inner cover. The rounded transition of the inner edge 121 makes the contact between the hand and the inner edge smoother, avoiding sharp edges, so that users will not experience stinging or discomfort when gripping the inner cover, thus improving the safety and comfort of use. On the other hand, the rounded transition of the outer wall also helps to improve the stability of gripping. When the user's fingers grip the inner edge 121, the rounded shape can better conform to the curvature of the fingers, increasing the friction between the fingers and the inner edge. This makes it less likely for the fingers to slip when the user applies force to open the inner cover, further improving the convenience and efficiency of opening the inner cover, while also further enhancing the structural strength of the inner edge, making it less prone to deformation when subjected to external pressure.

[0024] Furthermore, the lower part of the outer wall of the peripheral wall 12 is provided with several sealing protrusions at intervals along the height direction. The sealing protrusions fit airtightly with the inner wall of the can opening, so that the inner cover body 1 can fully fit the contour of the inner wall of the can opening. Even if there are minor unevenness or defects in the inner wall of the can opening, a good seal can be achieved, effectively preventing the leakage of substances inside the can and the intrusion of external impurities. At the same time, it reduces the friction between the peripheral wall 12 and the inner wall of the can opening, making the inner cover smoother during the closing and opening process, and reducing the possibility of damage to the sealing protrusions due to friction.

[0025] Furthermore, the outer wall of the peripheral wall 12 is provided with a plurality of grooves 122 at equal intervals along the circumference. The grooves 122 extend from the bottom surface of the flange 123 to the lower part of the peripheral wall 12, so that a ventilating channel is formed between the grooves 122 and the inner wall of the can opening. This not only ensures the sealing effect between the inner cover and the can body, but also allows the outer wall of the inner cover and the inner wall of the can body to circulate naturally with the outside air, avoiding the situation where it is difficult to open due to excessive air pressure difference between the inside and outside of the can during the opening process. When the user pulls the ring to open the inner cover, air will quickly enter the can through the ventilating channel formed by the grooves 122, balancing the air pressure inside and outside the can, so that the inner cover can be separated from the can opening more easily and smoothly.

[0026] Meanwhile, the grooves 122 also optimize the overall structure of the inner lid to some extent. The equidistant distribution of the grooves 122 makes the inner lid more evenly stressed, enhancing its stability. When closing the inner lid, the grooves 122 can also act as a buffer to some extent, reducing the impact force of the inner lid colliding with the inner wall of the can opening, and reducing the risk of damage to the inner lid and the can opening.

[0027] In this embodiment, the width of the groove 122 is 1mm-2.5mm and the depth of the groove 122 is 0.2mm-0.5mm. The groove 122 designed with the above dimensions can ensure the effectiveness of the ventilation channel, and will not affect the sealing performance of the inner cover and the can opening due to excessive size.

[0028] The inner edge of the 121 has a thickness of 0.5mm-0.75mm. This thickness ensures that the inner edge has sufficient strength to prevent easy deformation when the fingers grip and open the inner cover, ensuring smooth opening. At the same time, the inner edge remains relatively thin, without excessively increasing the overall weight and volume of the inner cover. Simultaneously, the appropriate thickness also gives the inner edge a degree of flexibility, allowing it to better conform to the gripping motion of the fingers and improve user comfort.

[0029] Reference Figure 3As shown, a reinforcing part 111 is formed by a downward protrusion at the center of the bottom surface of the cover 11. The reinforcing part 111 is ring-shaped, which enhances the structural strength of the cover 11 and prevents the cover 11 from deforming when subjected to external pressure.

[0030] Of course, the above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They cannot be used to limit the protection scope of this utility model. All modifications made in accordance with the spirit of the main technical solution of this utility model should be covered within the protection scope of this utility model.

Claims

1. An easy-open, sealed inner cap, characterized in that, The container includes an inner cover body (1) for covering the opening of the container. The inner cover body (1) includes a bottom cover (11) and a peripheral wall (12). The peripheral wall (12) surrounds the outer periphery of the bottom cover (11), forming a cavity (13) between the bottom cover (11) and the peripheral wall (12). An inner edge (121) extends from the top of the peripheral wall (12) toward the center of the top of the cavity (13), forming an inverted "L" shape between the inner edge (121) and the cavity (13). The gripping part (131) is provided with a plurality of grooves (122) evenly spaced along the circumferential direction on the outer wall of the peripheral wall (12). An outwardly extending flange (123) is provided on the outer wall of the peripheral wall (12) between the groove (122) and the inner edge (121). The flange (123) is matched with the can opening of the can body. The groove (122) extends from the bottom surface of the flange (123) to the lower part of the peripheral wall (12) so that an air-permeable channel is formed between the groove (122) and the inner wall of the can body.

2. The easy-open sealing inner cover according to claim 1, characterized in that, The connection between the inner edge (121) and the peripheral wall (12) is a circular arc transition.

3. The easy-open sealing inner cover according to claim 1, characterized in that, The lower part of the outer wall of the peripheral wall (12) is provided with a number of sealing protrusions at intervals along the height direction, and the sealing protrusions are airtightly fitted with the inner wall of the can opening.

4. The easy-open sealing inner cover according to claim 1, characterized in that, The height between the bottom cover (11) and the inner edge (121) is 6mm-8mm, and the thickness of the inner edge (121) is 0.5mm-0.75mm.

5. The easy-open sealing inner cover according to claim 1, characterized in that, The width of the groove (122) is 1mm-2.5mm, and the depth of the groove (122) is 0.2mm-0.5mm.

6. The easy-open sealing inner cover according to claim 1, characterized in that, The bottom of the cover (11) protrudes downward at the center of the bottom surface to form a reinforcing part (111), and the reinforcing part (111) is in the shape of a ring.

7. The easy-open sealing inner cover according to claim 1, characterized in that, The inner cover body (1) is made of rubber.

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