Packaging tin capable of being secondarily sealed
The secondary seal is achieved through the interference coordination between the lid and the can, which solves the problem of unreliable sealing of metal packaging cans after opening, ensuring food safety and reducing production costs.
Patent Information
- Application Number
- CN202422187723.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-06
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2034-09-06
AI Technical Summary
Existing metal packaging cans cannot be effectively sealed after opening, resulting in moisture and deterioration of food. The existing sealing method increases production costs and is not environmentally friendly, which may contaminate food.
The inclined surface of the lid body is used to cooperate with the upper edge of the tank body, and the concave inclined surface on the lid body is used to tighten the edge of the tank body to achieve secondary sealing, avoid additional sealing structure, reduce production costs and prevent food contamination.
A more reliable secondary seal is achieved, which can prevent food from getting damp and deteriorating, reduce production costs and maintain food safety.
Smart Images
Figure CN223279690U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of packaging cans, in particular to a packaging can that can be sealed twice. Background Art
[0002] Foods such as milk powder and coffee are often packaged in metal cans, often fitted with easy-tear lids for easy opening. However, once the easy-tear lids are removed, the metal can loses its seal, and the lid alone cannot fully seal the can, causing the food inside to become damp and spoil. Some cans use paper gaskets glued to the lid or rubber rings to seal against the can's opening. However, these sealing methods not only increase production costs but are also prone to falling off over time, resulting in unreliable seals. Furthermore, these materials are not environmentally friendly and can easily contaminate the food inside, endangering consumer health. Utility Model Content
[0003] The technical problem to be solved by the embodiment of the utility model is to provide a packaging can that can be sealed twice, and the inclined surface of the cover body is used to perform interference fit with the upper edge of the can body to achieve secondary sealing of the can body, which not only makes the seal more reliable but also prevents food from being contaminated.
[0004] To achieve the above-mentioned purpose, the utility model discloses a secondary sealable packaging can, comprising a can body and a cover body, wherein a first connecting portion is provided on the outer periphery of the can mouth of the can body, and a second connecting portion is provided on the inner side surface of the cover body, so that the cover body can be rotated on the can mouth of the can body through the cooperation of the second connecting portion and the first connecting portion, the cover body comprises a peripheral wall and a top wall, the top wall is provided on the top surface of the peripheral wall, and a recess is provided on the outer edge of the top wall adjacent to the peripheral wall, and the side wall of the recess facing the peripheral wall is an inclined surface, so that after the cover body and the can body are covered, the inclined surface of the recess contacts the edge of the can mouth of the can body to form a sealed connection.
[0005] Furthermore, the first connecting portion includes a plurality of first oblique ribs, which are circumferentially spaced apart on the outer circumference of the tank body, and the second connecting portion includes a plurality of second oblique ribs, which are circumferentially spaced apart on the lower edge of the peripheral wall, so that the first oblique ribs cooperate with the second oblique ribs so that the cover body can be screwed onto the tank body.
[0006] Furthermore, the can body includes a can body and a sealing cover, the sealing cover has a through hole, the through hole is sealed and covered with a sealing film, the upper edge of the can body is folded outward to form a folded portion, the outer edge of the sealing cover is curled upward to form a curled portion, and the curled portion buckles the folded portion of the can body.
[0007] Furthermore, the outer diameter of the inclined surface of the recess is larger than the inner diameter of the inner wall of the curled portion, so that the inclined surface can press against the upper edge of the can body after the cover body is screwed onto the can body.
[0008] Compared with the prior art, the beneficial effects of the present invention are:
[0009] In the utility model, a recess is provided on the cover body, and the side wall of the recess is inclined. After the cover body is screwed onto the can body, the inclined surface of the recess is used to press the upper edge of the can body, so that an interference fit is formed between the can body and the cover body, ensuring that the seal between the cover body and the can body is more secure, achieving secondary resealing, and no need to add any sealing structure, which greatly reduces production costs and avoids contamination of food. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0011] Figure 2 Schematic diagram of the overall structure of the cover;
[0012] Figure 3 To show Figure 1 Schematic diagram of the structure of part A in . DETAILED DESCRIPTION
[0013] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be described in further detail below with reference to the accompanying drawings.
[0014] Reference Figure 1 As shown, a secondary sealable packaging can includes a can body 1 and a cover body 2. A first connecting portion 3 is provided on the outer periphery of the can mouth of the can body 1, and a second connecting portion 4 is provided on the inner side of the cover body 2, so that the cover body 2 can be screwed onto the can mouth of the can body 1 through the second connecting portion 4 and the first connecting portion 3.
[0015] Figure 1 、 Figure 3 As shown, further, in this embodiment, the can body 1 includes a can body 11 and a sealing cover 12. The upper edge of the can body 11 is folded outward to form a folded portion 111, and the outer edge of the sealing cover 12 is curled upward to form a curled portion 122, so that the curled portion 122 of the sealing cover 12 buckles the folded portion 111 of the can body 11, and a certain pressure is applied to it by a sealing machine to press the curled portion 122 and the folded portion 111 tightly, and a rubber ring is provided between the folded portion 111 and the curled portion 122, so as to realize the sealing connection between the can body and the sealing cover, thereby avoiding the gap between the sealing cover and the can body that causes leakage of the can body, and at the same time preventing bacteria, moisture, and oxygen from penetrating and contaminating the interior of the can body.
[0016] The sealing cover 12 has a through hole 121 , and the through hole 121 is sealed and covered with a sealing film, so that a closed space is formed inside the can body 1 .
[0017] Reference Figure 2 、 Figure 3 As shown, further, the cover body 2 includes a peripheral wall 21 and a top wall 22. The top wall 22 is arranged on the top surface of the peripheral wall 21, and a recess 221 is provided on the outer edge of the top wall 22 adjacent to the peripheral wall 21. The side wall of the recess 221 facing the peripheral wall 21 is a slope 222, and the outer diameter of the slope 222 of the recess 221 is larger than the inner diameter of the inner wall of the curled portion 122, so that after the cover body 2 is covered with the can body, the slope 222 of the recess is used to conflict with the edge of the can mouth of the can body 1, and The first connecting portion 3 includes a plurality of first oblique ribs, which are circumferentially spaced apart on the outer circumference of the can body 1, and the second connecting portion 4 includes a plurality of second oblique ribs, which are circumferentially spaced apart on the lower edge of the peripheral wall 21. Therefore, the first oblique ribs and the second oblique ribs are matched with each other to enable the cover body 2 to be screwed onto the can body, so that the inclined surface 222 of the recess 221 is pressed against the upper edge of the can body 1 to form an interference fit therebetween, thereby achieving secondary sealing of the packaging can.
[0018] Of course, the above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with this technology to understand the content of the utility model and implement it accordingly. They cannot be used to limit the scope of protection of the utility model. Any modifications made according to the spirit of the main technical solution of the utility model should be included in the scope of protection of the utility model.
Claims
1. A secondary sealable packaging can, characterized in that: The invention comprises a tank body (1) and a cover body (2), wherein a first connecting portion (3) is provided on the outer periphery of the tank mouth of the tank body (1), and a second connecting portion (4) is provided on the inner side surface of the cover body (2), so that the cover body (2) can be rotated on the tank mouth of the tank body (1) through the cooperation of the second connecting portion and the first connecting portion, and the cover body (2) comprises a peripheral wall (21) and a top wall (22), wherein the top wall (22) is provided on the top surface of the peripheral wall (21), and a concave portion (221) is provided on the outer edge of the top wall (22) adjacent to the peripheral wall (21), and the side wall of the concave portion (221) facing the peripheral wall (21) is an inclined surface (222), so that after the cover body (2) and the tank body (1) are covered, the inclined surface (222) of the concave portion (221) contacts the edge of the tank mouth of the tank body (1) to form a sealed connection.
2. The secondary sealable packaging can according to claim 1, characterized in that: The first connecting portion (3) includes a plurality of first oblique ribs, which are arranged at intervals along the circumference of the tank body (1), and the second connecting portion (4) includes a plurality of second oblique ribs, which are arranged at intervals along the circumference on the lower edge of the peripheral wall (21), so that the first oblique ribs and the second oblique ribs are matched.
3. The secondary sealable packaging can according to claim 1, characterized in that: The can body (1) comprises a can body (11) and a sealing cover (12). The sealing cover (12) has a through hole (121). The through hole (121) is sealed and covered with a sealing film. The upper edge of the can body (11) is folded outward to form a folded portion (111). The outer edge of the sealing cover (12) is curled upward to form a curled portion (122), and the curled portion (122) is buckled with the folded portion (111) of the can body (11).
4. The secondary sealable packaging can according to claim 3, characterized in that: The outer diameter of the inclined surface (222) of the concave portion (221) is greater than the inner diameter of the inner wall of the curled portion (122).