Reusable ring-pull can sealing cover

Abstract

The invention discloses a reusable zip-top can sealing cover which comprises a lower cover, the lower cover is provided with a positioning groove matched with the upper end of a zip-top can, the groove wall of the positioning groove is provided with a first convex ring matched with a step on the outer side of the upper end of the zip-top can, and the upper cover and the lower cover are sealed in a clamped mode. Compared with the prior art, the positioning groove is aligned with the ring at the top end of the zip-top can to press downwards, the first convex ring slides to the step outside the ring of the zip-top can to form clamping connection, installation of the lower cover is completed, at the moment, the first convex ring is tightly attached to the outer wall of the zip-top can to form first sealing, and the lower cover and the upper cover are clamped and sealed, so that a double-sealing structure is formed; and the sealing effect on the opened zip-top can is good. The whole structure is simple, the manufacturing difficulty is low, and the production cost is effectively reduced. And secondly, the sealing cover can be repeatedly used due to the detachable lower cover, so that the use cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of can sealing, in particular to a reusable can sealing cover. Background Art

[0002] In daily life, most cans use a one-time sealing design. The pull ring of the can will destroy the original sealing after opening and cannot be closed again. Cans usually use metal (such as aluminum, iron) or composite materials as packaging materials, which are difficult to reseal in a simple way after opening. Consumers either directly throw away uneaten canned food to cause waste, or cover the opening with plastic wrap or plastic bags, or use silicone lids, magnetic sealing lids, etc. to seal, or transfer the food to other containers (such as glass bottles, plastic boxes). These methods are not only cumbersome to operate, but also have poor sealing effects, which can easily cause food spoilage or leakage. Summary of the invention

[0003] The invention provides a reusable can sealing cover, which is used to solve the problem that the can cannot be resealed or the resealing effect is poor after being opened.

[0004] The present invention provides a reusable can sealing cover, comprising a lower cover, wherein the lower cover is provided with a positioning groove matched with the upper end of the can, the groove wall of the positioning groove is provided with a first convex ring matched with the step on the outer side of the upper end of the can, and the upper cover and the lower cover are sealed by clamping.

[0005] Preferably, the lower cover is provided with a snap ring, which is the groove wall of the positioning groove. The snap ring extends into the V-shaped groove at the upper end of the can and is tightly attached to the groove wall of the V-shaped groove after being bent.

[0006] Preferably, the clamping ring is arranged obliquely, and the diameter of the clamping ring gradually decreases from top to bottom.

[0007] Preferably, the clamping ring extends upward to form a clamping portion that is clamped with the upper cover.

[0008] Preferably, the upper cover is provided with a second convex ring matched with the clamping portion.

[0009] Preferably, a stop surface is provided on the lower cover, and the bottom of the upper cover is in contact with the stop surface.

[0010] Preferably, the second convex ring is clamped and sealed with the upper end of the clamping portion.

[0011] Preferably, a handle is provided on the outer side of the upper cover.

[0012] Preferably, the upper cover and the lower cover are connected by a connecting belt, and the handle and the connecting belt are symmetrically distributed on the upper cover.

[0013] Compared with the prior art, in the present invention, the positioning groove is aligned with the top ring of the can and pressed downward, and the first convex ring slides to the step outside the can ring to form a snap connection, completing the installation of the lower cover. At this time, the first convex ring is close to the outer wall of the can to form the first seal, and the snap seal between the lower cover and the upper cover forms a double sealing structure, which has a good sealing effect on the opened can. The overall structure is simple, the manufacturing difficulty is low, and the production cost is effectively reduced. Secondly, the detachable design of the lower cover allows the sealing cover to be reused, reducing the cost of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a structural schematic diagram of the present invention;

[0016] Figure 2 It is a structural schematic diagram of the lower cover of the present invention;

[0017] Figure 3 It is a cross-sectional schematic diagram of the present invention;

[0018] Figure 4 It is a structural schematic diagram of a sealed can of the present invention;

[0019] Figure 5 for Figure 4 A magnified schematic diagram of the structure at center A;

[0020] Figure 6 This is a physical diagram of the present invention.

[0021] Reference numerals:

[0022] 1. Lower cover, 2. Upper cover, 3. Can, 4. Connecting belt, 11. Positioning groove, 12. First convex ring, 13. Clamping ring, 14. Snap-fitting part, 15. Stopping surface, 21. Second convex ring, 22. Handle, 31. V-shaped groove. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Refer to the attached Figure 1 This embodiment provides a reusable can sealing cover, including a lower cover 1, as shown in FIG. Figure 3 The lower cover 1 is provided with a positioning groove 11 which matches the upper end of the can 3. Figure 5 The groove wall of the positioning groove 11 is provided with a first convex ring 12 which matches with the step on the outer side of the upper end of the can 3, and the upper cover 2 and the lower cover 1 are sealed by clamping. Figure 4 When in use, align the positioning groove 11 with the top ring of the can 3, and then press down gently. When the top ring of the can 3 is inserted into the positioning groove 11 and contacts the bottom of the groove, the first convex ring 12 slides down to the step outside the ring of the can 3 to form a snap connection, and the installation of the lower cover 1 is completed. At this time, the first convex ring 12 is close to the outer wall of the can 3 to form a first seal, and the upper cover 2 and the lower cover 1 are sealed by snap connection, which is the second seal. The two seals ensure that the food in the can 3 is isolated from the outside world, and can well ensure that the food in the opened can 3 will not deteriorate or spill for a long time. If you want to continue eating, open the upper cover 2 to open the sealing cover, and you can use it normally. When the food is finished, the lower cover 1 can be removed from the can 3 and installed on the next can 3 for continued use. The present invention has a simple structure and is easy to operate. The double seal ensures that the opened can 3 can be effectively sealed, so that the food inside can be eaten again for a long time. The detachable lower cover 1 allows the sealing cover to be reused, reducing the cost of use.

[0025] As another embodiment of the present invention: Figure 5 The lower cover 1 is provided with a snap ring 13, which is the groove wall of the positioning groove 11. When the top ring of the can 3 is inserted into the positioning groove 11, the snap ring 13 extends into the V-shaped groove 31 at the upper end of the can 3 and contacts its groove wall. When the positioning groove 11 continues to be pressed down, the snap ring 13 is blocked by the V-shaped groove 31 and bends, and then it is tightly attached to the groove wall of the V-shaped groove 31 to form a third seal. This setting further improves the sealing effect of the sealing cover. When the lower cover 1 is installed on the can 3, the snap ring 13 and the first convex ring 12 are respectively arranged on the inner and outer sides of the top ring of the can 3.

[0026] As another embodiment of the present invention, the clamp ring 13 is tilted, and the diameter of the clamp ring 13 gradually decreases from top to bottom. This arrangement ensures that after the upper cover 2 is opened, the inner diameter of the lower cover 1 is relatively large, which can less affect the scooping or sucking of food.

[0027] As another embodiment of the present invention: Figure 2 The snap ring 13 extends upward to form a snap-fitting portion 14 that is snap-fitted to the upper cover 2. Two seals are formed at the upper and lower ends of the snap ring 13, respectively. The snap ring 13 itself has a simple structure and is easy to manufacture. Through this structural design, the manufacturing cost can be effectively reduced.

[0028] As another embodiment of the present invention: the upper cover 2 is provided with a second convex ring 21 which cooperates with the clamping portion 14. When the upper cover 2 is buckled on the lower cover 1, the second convex ring 21 is located on the outer side of the clamping portion 14 and is in close contact with the clamping portion 14, thereby achieving sealing between the upper cover 2 and the lower cover 1.

[0029] As another embodiment of the present invention: a stop surface 15 is provided on the lower cover 1 , and the bottom of the upper cover 2 contacts the stop surface 15 , and the stop surface 15 blocks the upper cover 2 from moving further downward to avoid affecting the sealing between the second convex ring 21 and the clamping portion 14 .

[0030] As another embodiment of the present invention, the second convex ring 21 is clamped and sealed with the upper end of the clamping portion 14 , and a cavity is formed between the lower end of the clamping portion 14 , the second convex ring 21 , the upper cover 2 and the positioning groove 11 .

[0031] As another embodiment of the present invention: a handle 22 is provided on the outer side of the upper cover 2. The upper cover 2 can be opened by holding the handle 22 upward with hands to disengage the second convex ring 21 from the clamping portion 14. The design of the handle 22 is convenient for users to open the upper cover 2.

[0032] As another embodiment of the present invention: the upper cover 2 is connected to the lower cover 1 by a connecting belt 4, and the handle 22 and the connecting belt 4 are symmetrically distributed on the upper cover 2. This structural design ensures that the upper cover 2 or the lower cover 1 will not be lost.

[0033] As another embodiment of the present invention: the upper cover 2, the lower cover 1 and the connecting belt 4 are all made of food-grade silicone. When the snap ring 13 is blocked by the V-shaped groove 31, the snap ring 13 will bend and its contact surface will be deformed and expanded, so as to better seal the can 3.

[0034] The present invention achieves the following significant beneficial effects:

[0035] 1. Effectively solve food safety risks

[0036] The sealing cover of the present invention can quickly and conveniently reseal the can mouth after the can 3 is opened, forming a reliable protective barrier to prevent dust, bacteria and pests (such as flies, mice, cockroaches) from contaminating food.

[0037] 2. Extend the shelf life of food

[0038] By resealing, the sealing cover of the present invention has a high sealing degree through multiple sealing, can effectively block the air from entering the can, slow down the speed of food oxidation and deterioration, and ensure the original flavor of the food to the greatest extent.

[0039] 3. Easy operation and good user experience

[0040] The sealing cover of the present invention adopts a humanized design, is easy to install and remove, and can be operated without tools, which greatly improves the convenience of use for users. In addition, the sealing cover is made of a light, environmentally friendly, durable material and can be used repeatedly, further reducing the use cost.

[0041] 4. Environmental protection and economy

[0042] The sealing cover of the present invention adopts food-grade silica gel, which has good recyclability and degradability, and can reduce environmental pollution to a certain extent. In addition, the silica gel material generates less waste during production and use, which is beneficial to environmental protection. Thirdly, its reusable property reduces consumers' dependence on disposable preservation tools (such as plastic wrap and plastic bags), saving resources.

[0043] 5. High scalability

[0044] The sealing cover of the present invention can seal cans 3 of various sizes by only changing the size, and has good expandability and low design cost.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A reusable can sealing cover, characterized in that: The invention comprises a lower cover, wherein the lower cover is provided with a positioning groove matched with the upper end of the can, the groove wall of the positioning groove is provided with a first convex ring matched with the outer step of the upper end of the can, and the upper cover and the lower cover are sealed by clamping.

2. The reusable can sealing cover according to claim 1, characterized in that: The lower cover is provided with a snap ring, which is the groove wall of the positioning groove. The snap ring extends into the V-shaped groove at the upper end of the can and is tightly attached to the groove wall of the V-shaped groove after being bent.

3. The reusable can sealing cover according to claim 2, characterized in that: The clamping ring is arranged obliquely, and the diameter of the clamping ring gradually decreases from top to bottom.

4. The reusable can sealing cover according to claim 3, characterized in that: The clamping ring extends upward to form a clamping portion clamped with the upper cover.

5. The reusable can sealing cover according to claim 4, characterized in that: The upper cover is provided with a second convex ring matched with the clamping portion.

6. The reusable can sealing cover according to claim 5, characterized in that: The lower cover is provided with a stop surface, and the bottom of the upper cover is in contact with the stop surface.

7. The reusable can sealing cover according to claim 6, characterized in that: The second convex ring is clamped and sealed with the upper end of the clamping portion.

8. The reusable can sealing cover according to claim 7, characterized in that: A handle is provided on the outer side of the upper cover.

9. The reusable can sealing cover according to claim 8, characterized in that: The upper cover and the lower cover are connected by a connecting belt, and the handle and the connecting belt are symmetrically distributed on the upper cover.

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