Metal can

Abstract

The utility model provides a metal can, and relates to the technical field of metal containers. The metal can comprises a metal can body, a metal can cover and a pull ring. The upper end of the metal can body is of an opening structure, and a first hemming structure is formed on the edge of the opening structure of the metal can body. The metal can cover comprises a cover sealing part and a pull tongue part which are integrated, a second hemming structure is formed on the edge of the cover sealing part, the first hemming structure and the second hemming structure are hooked and matched to form a first seaming structure, the cover sealing part is connected with the metal can body through the first seaming structure, and the cover sealing part seals the opening structure. The pull tongue part is connected with the edge of the sealing cover part, and the pull ring is arranged at the end, away from the sealing cover part, of the pull tongue part and located on the side of the metal can body. In this way, the metal can can be opened conveniently.

Description

Technical Field

[0001] The present application relates to the technical field of metal containers, and in particular to a metal can. Background Art

[0002] Metal cans have the advantages of strong light-shielding properties, good sealing, easy carrying and transportation, and convenient printing and decoration. They are widely used in the packaging of products in the fields of food, chemical, and medicine.

[0003] In the related art, a metal can includes a metal can body, a metal can cover and a pull ring. The upper end of the metal can body is an opening structure. The metal can cover is connected to the upper end of the metal can body and seals the opening structure. The top of the metal can cover includes a tongue portion and a main body separated by an indentation. The pull ring can be riveted to the tongue portion by rivets. The pull ring is attached to the top surface of the metal can cover. The tongue portion can be separated from the main body by buckling and pulling the pull ring, thereby opening the metal can.

[0004] However, in the related art, the pull ring attached to the top surface of the metal can lid is not easy to be buckled, which makes it inconvenient to open the metal can. Utility Model Content

[0005] The present application provides a metal can, which is used to solve the technical problem of the inconvenience of opening the metal can.

[0006] In order to achieve the above-mentioned purpose, the present application provides a metal can, which includes a metal can body, a metal can cover and a pull ring. The upper end of the metal can body is an opening structure, and the edge of the metal can body at the opening structure is formed with a first curling structure. The metal can cover includes an integrated sealing portion and a pull tab portion, and the edge of the sealing portion is formed with a second curling structure. The first curling structure and the second curling structure are hooked together to form a first rolling structure. The sealing portion is connected to the metal can body through the first rolling structure, and the sealing portion covers the opening structure. The pull tab portion is connected to the edge of the sealing portion, and the pull ring is arranged at one end of the pull tab portion away from the sealing portion, and the pull ring is located on the side of the metal can body.

[0007] In a possible implementation, the metal can body includes a can body and an upper cover. The upper cover includes an integrated connection portion, a mouth portion and a first curling structure, the connection portion is located at the lower end of the mouth portion, the connection portion is connected to the upper end of the can body, the first curling structure is located at the upper end of the mouth portion, and the metal can cover is connected to the mouth portion through the first curling structure. The mouth portion is a cylindrical structure, and the diameter of the mouth portion is smaller than the diameter of the can body.

[0008] In a possible implementation, the connection portion includes an integral neck portion and a folded edge portion, the lower end of the neck portion is connected to the folded edge portion, the upper end of the neck portion is connected to the lower end of the mouth portion, and the folded edge portion is connected to the upper end of the can body via a second crimping structure. The diameter of the neck portion gradually decreases from the lower end of the neck portion to the upper end of the neck portion.

[0009] In a possible implementation, the neck portion is an arc-shaped structure.

[0010] In a possible implementation, the edge of the cover portion has a cutout structure. Along the circumference of the cover portion, the cutout structure is located on the side of a portion of the cover portion used for connecting to the pull tab portion.

[0011] In a possible implementation, along the circumference of the cover portion, both sides of a portion of the cover portion used for connecting to the pull tab portion have a cutout structure.

[0012] In a possible implementation, the first curling structure surrounds the upper end of the metal can body. One end of the pull tab portion for connecting to the cover portion is located between the second curling structure and the side wall of the metal can body.

[0013] In a possible implementation, the cover portion covers an end surface of an upper end of the metal can body.

[0014] In a possible implementation, a sealing gasket is provided between the sealing cover and the end surface of the upper end of the metal can body, and the sealing cover is pressed against the end surface of the upper end of the metal can body through the sealing gasket.

[0015] In a possible implementation, the pull ring is a plastic pull ring, and one end of the pull tab portion away from the sealing portion is embedded in the pull ring so that the pull tab portion is fixedly connected to the pull ring.

[0016] The metal can provided in the present application comprises a metal can body, a metal can cover and a pull ring. The upper end of the metal can body is an opening structure, and a first curling structure is formed at the edge of the metal can body at the opening structure. The metal can cover comprises an integrated sealing portion and a pull tab portion, and a second curling structure is formed at the edge of the sealing portion. The first curling structure and the second curling structure are hooked together to form a first rolling structure. The sealing portion is connected to the metal can body through the first rolling structure, and the sealing portion covers the opening structure. The pull tab portion is connected to the edge of the sealing portion, and the pull ring is arranged at one end of the pull tab portion away from the sealing portion, and the pull ring is located on the side of the metal can body.

[0017] Through the above arrangement, the first rolling sealing structure can be used to conveniently fix the metal can lid to the metal can body, and the first rolling structure of the metal can body and the second rolling structure of the metal can lid can be sealed by the first rolling sealing structure, so as to facilitate the sealing of the inner cavity of the metal can. When it is necessary to open the metal can, the pull ring can be pulled up from the side of the metal can body, and the sealing part can be torn by pulling the pull ring, so that at least part of the opening structure is exposed, and the area around the pull ring connected to the pull tongue part and located on the side of the metal can body is relatively empty, which is convenient for users to pinch and pull up the pull ring, making it easier to open the metal can. In addition, after the sealing part is torn, the structure of the sealing part is destroyed, and the connection of the first rolling sealing structure will become loose, which is conducive to removing the metal can lid as a whole from the metal can body, so that the opening structure can be completely exposed, which is convenient for pouring out the items stored in the metal can. In addition, the portion of the upper end of the metal can body covered by the sealing portion is not exposed to the external environment and is not easily contaminated by pollutants such as dust. After the metal can is opened, the items stored in the metal can can be poured out from the position covered by the sealing portion before opening, thereby reducing the risk of the items stored in the metal can being contaminated by the metal can body when being poured out. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the present application or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 A schematic diagram of a metal can from one perspective provided in an embodiment of the present application;

[0020] Figure 2 A schematic cross-sectional view of a metal can provided in an embodiment of the present application;

[0021] Figure 3 A schematic diagram of a metal can from another perspective provided in an embodiment of the present application;

[0022] Figure 4 A schematic diagram of the connection between a metal can lid and a pull ring of a metal can provided in an embodiment of the present application.

[0023] Description of reference numerals:

[0024] 100. Metal tank;

[0025] 110, can body;

[0026] 120, upper cover;

[0027] 121, connecting portion; 1211, folding portion; 1212, necking portion; 122, mouth portion; 123, first curling structure;

[0028] 130. Opening structure;

[0029] 200. Metal can lids;

[0030] 210, cover portion; 211, second curling structure; 212, cutout structure;

[0031] 220. Pull tongue;

[0032] 300, pull ring;

[0033] 410, first roll sealing structure; 420, second roll sealing structure. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions in this application will be clearly and completely described below in conjunction with the drawings in this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0035] As recorded in the background technology, in the related art, the pull ring of a metal can is often attached to the top surface of the metal can lid of the metal can, and the gap between the pull ring and the top surface of the metal can lid is small. When the pull ring needs to be pulled to open the metal can, the pull ring attached to the top surface of the metal can lid is not easily picked up by the user's fingers, causing inconvenience to the user in opening the metal can.

[0036] Based on this, an embodiment of the present application provides a metal can, by connecting a pull ring located on the side of the metal can body with a pull tongue located on the side of the metal can cover, so that the area around the pull ring is relatively spacious, and it is easier for the user to pull up the pull ring, making it more convenient to open the metal can by pulling the pull ring.

[0037] Figure 1 A schematic diagram of a metal can from one perspective provided in an embodiment of the present application, Figure 2 A schematic cross-sectional view of a metal can provided in an embodiment of the present application.

[0038] like Figure 1 , Figure 2As shown, in the embodiment of the present application, the metal can includes a metal can body 100, a metal can cover 200 and a pull ring 300. The upper end of the metal can body 100 is an opening structure 130, and the edge of the metal can body 100 at the opening structure 130 is formed with a first curling structure 123. The metal can cover 200 includes an integrated cover portion 210 and a pull tab portion 220, and the edge of the cover portion 210 is formed with a second curling structure 211. The first curling structure 123 and the second curling structure 211 are hooked together to form a first roll-sealing structure 410. The cover portion 210 is connected to the metal can body 100 through the first roll-sealing structure 410, and the cover portion 210 covers the opening structure 130. The pull tab portion 220 is connected to the edge of the cover portion 210, and the pull ring 300 is arranged at one end of the pull tab portion 220 away from the cover portion 210, and the pull ring 300 is located on the side of the metal can body 100.

[0039] In this way, the first rolling sealing structure 410 is convenient for fixing the metal can cover 200 with the metal can body 100, and the first rolling structure 123 of the metal can body 100 and the second rolling structure 211 of the metal can cover 200 can be sealed by the first rolling sealing structure 410, so as to seal the inner cavity of the metal can. When the metal can needs to be opened, the pull ring 300 can be pulled up from the side of the metal can body 100, and the cover part 210 can be torn by pulling the pull ring 300, so that at least part of the opening structure 130 is exposed, and the pull ring 300 connected to the pull tongue part 220 and located on the side of the metal can body 100 is relatively empty, which is convenient for the user to pinch and pull the pull ring 300, making it easier to open the metal can. In addition, after the cover portion 210 is torn, the structure of the cover portion 210 is destroyed, and the connection of the first roll-sealed structure 410 becomes loose, which is conducive to removing the metal can cover 200 from the metal can body 100 as a whole, and then the opening structure 130 can be fully exposed, which is convenient for pouring out the items stored in the metal can. In addition, the upper end of the metal can body 100 covered by the cover portion 210 is not exposed to the external environment and is not easily contaminated by pollutants such as dust. After the metal can is opened, the items stored in the metal can can be poured out from the position covered by the cover portion 210 before opening, which can reduce the risk of the items stored in the metal can being contaminated by the metal can body 100 when pouring out. Furthermore, the first roll-sealed structure 410 has a certain pressure-bearing capacity, which can make the inner cavity of the metal can have a certain pressure.

[0040] Exemplarily, the metal can cover 200 may be made of at least one of the following materials: aluminum, tinplate, etc.

[0041] Exemplarily, the metal can body 100 may be made of at least one of the following materials: aluminum, tinplate, etc.

[0042] In some possible embodiments, the first roll-sealing structure 410 surrounds the upper end of the metal can body 100, that is, the first roll-sealing structure 123 is formed around the edge of the metal can body 100 at the opening structure 130, and the second roll-sealing structure 211 is formed around the edge of the cover portion 210. The first roll-sealing structure 410 is formed around the edge of the metal can body 100 at the opening structure 130 and the edge of the cover portion 210 through the first roll-sealing structure 123 and the second roll-sealing structure 211. One end of the pull tab portion 220 for connecting the cover portion 210 is located between the second roll-sealing structure 211 and the side wall of the metal can body 100.

[0043] In this way, it is convenient to seal the gap between the metal can body 100 and the metal can cover 200 through the first sealing structure 410, so as to seal the inner cavity of the metal can. In addition, when the metal can needs to be opened, it is also convenient to break the first sealing structure 410 by pulling the pull ring 300, so that the connection of the first sealing structure 410 is loosened, and the metal can cover 200 is removed from the metal can body 100 as a whole.

[0044] At the location where the pull tab portion 220 is provided, the portion of the pull tab portion 220 located between the second curling structure 211 and the side wall of the metal can body 100 can be pressed onto the side wall of the metal can body 100 or the first curling structure 123, thereby enabling the metal can body 100 and the metal can cover 200 to be sealed and connected through the first curling structure 410 at the location where the pull tab portion 220 is provided.

[0045] In the embodiment of the present application, the metal can body 100 includes a can body 110 .

[0046] In some examples, the tank body 110 may be a cylindrical structure.

[0047] In other examples, the diameter of the can body 110 may gradually decrease from the lower end to the upper end.

[0048] In some other examples, the can body 110 may be a structure with a middle portion convex outward or a middle portion concave inward.

[0049] Exemplarily, the can body 110 may be made of at least one of the following materials: aluminum, tinplate, etc.

[0050] In some possible implementations, the edge of the upper end of the can body 110 forms a first curling structure 123 , and the cover portion 210 is connected to the can body 110 via a first curling structure 410 .

[0051] like Figure 1 , Figure 2As shown, in some other possible embodiments, the metal can body 100 may further include an upper cover 120. The upper cover 120 includes an integrated connection portion 121, a mouth portion 122 and a first curling structure 123, wherein the connection portion 121 is located at the lower end of the mouth portion 122, the connection portion 121 is connected to the upper end of the can body 110, and the first curling structure 123 is located at the upper end of the mouth portion 122, that is, the opening structure 130 is located at the upper end of the mouth portion 122. The metal can cover 200 is connected to the mouth portion 122 through the first curling structure 410. The mouth portion 122 is a cylindrical structure, that is, the diameter of the mouth portion 122 is equal at all locations along its axial direction. The diameter of the mouth portion 122 is smaller than the diameter of the can body 110.

[0052] In this way, the size of the opening structure 130 can be made smaller, which makes it easier to cover the opening structure 130 with the cover part 210 to seal the inner cavity of the metal can. In addition, when the inner cavity of the metal can is under pressure, the pressure-bearing surface of the cover part 210 can be made smaller, and the connection between the cover part 210 and the metal can body 100 is not easily destroyed by the pressure in the inner cavity of the metal can. In addition, the size of the cover part 210 can be made smaller, and it is easier to remove the metal can cover 200 from the metal can body 100 by pulling the pull ring 300 to destroy the cover part 210.

[0053] Exemplarily, the upper cover 120 may be made of at least one of the following materials: aluminum, tinplate, etc.

[0054] In some examples, the upper cover 120 and the can body 110 may be an integral structure.

[0055] In other examples, the upper cover 120 and the can body 110 are separate structures. The connecting portion 121 includes an integrated neck portion 1212 and a folded edge portion 1211, the lower end of the neck portion 1212 is connected to the folded edge portion 1211, the upper end of the neck portion 1212 is connected to the lower end of the mouth portion 122, and the folded edge portion 1211 is connected to the upper end of the can body 110 through the second sealing structure 420. The diameter of the neck portion 1212 gradually decreases from the lower end of the neck portion 1212 to the upper end of the neck portion 1212.

[0056] In this way, it is easy to connect the upper end of the larger can body 110 to the lower end of the smaller mouth 122. In addition, the upper cover 120 and the can body 110 can be manufactured separately, and the upper cover 120 and the can body 110 are easy to manufacture, making it easy to form the metal can body 100.

[0057] In some examples, the neck portion 1212 is an arc-shaped structure.

[0058] In this way, the metal can has better pressure bearing capacity.

[0059] The neck portion 1212 may include a plurality of arc segments connected in sequence, and at least some of the arc segments are outwardly convex arc segments.

[0060] In some other examples, the neck portion 1212 may also be a sloped structure.

[0061] Figure 3 This is a schematic diagram of another perspective of a metal can provided in an embodiment of the present application. Figure 4 A schematic diagram of the connection between a metal can lid and a pull ring of a metal can provided in an embodiment of the present application.

[0062] like Figure 3 , Figure 4 As shown, in some possible implementations, the edge of the cover portion 210 has a cutout structure 212. Along the circumference of the cover portion 210, the cutout structure 212 is located on the side of the portion of the cover portion 210 used to connect the pull tab portion 220.

[0063] In this way, it is convenient to tear the cover 210 when pulling the ring 300, making it easy to open the metal can. In addition, after the cutout structure 212 is provided, it is no longer necessary to perform high-precision engraving on the cover 210 to form a notch for tearing the cover 210, so that the processing of the metal can cover 200 is relatively simple and the processing precision requirement is relatively low.

[0064] The cutout structure 212 may be disposed adjacent to a portion of the cover portion 210 that is used to connect to the pull tab portion 220 .

[0065] When the edge of the cover portion 210 has a cutout structure 212, the surface of the cover portion 210 may be provided with a notch for making it easier to tear the cover portion 210, or may not be provided with a notch. When the surface of the cover portion 210 is provided with a notch, one end of the notch extends to the bottom of the notch structure 212. The bottom of the notch structure 212 refers to the position opposite to the opening of the notch structure 212.

[0066] For example, one side edge of the cutout structure 212 may be flush with one side edge of the pull tab portion 220 in the circumferential direction of the cover portion 210 .

[0067] In some examples, along the circumference of the cover portion 210, one side of the portion of the cover portion 210 for connecting the pull tab portion 220 has a cutout structure 212.

[0068] like Figure 3 , Figure 4 As shown, in some other examples, along the circumference of the cover portion 210 , both sides of the portion of the cover portion 210 for connecting with the pull tab portion 220 have cutout structures 212 .

[0069] In this way, it is easy to tear the sealing portion 210 when pulling the pull ring 300, so as to facilitate opening of the metal can.

[0070] In some possible implementations, the cover portion 210 covers the end surface of the upper end of the metal can body 100 .

[0071] In this way, before the metal can is opened, the end surfaces of the upper end of the metal can body 100 are covered by the sealing portion 210, so that various parts of the end surfaces of the upper end of the metal can body 100 are not easily contaminated by pollutants such as dust. After the metal can is opened, the items stored in the metal can are poured out from various parts of the upper end of the metal can body 100 without being contaminated by the metal can body 100.

[0072] When the metal can body 100 includes the mouth portion 122 , the cover portion 210 covers the end surface of the upper end of the mouth portion 122 .

[0073] In some possible implementations, a sealing gasket (not shown) is provided between the cover portion 210 and the end surface of the upper end of the metal can body 100 , and the cover portion 210 is pressed against the end surface of the upper end of the metal can body 100 via the sealing gasket.

[0074] In this way, the sealing gasket can seal the gap between the cover portion 210 and the upper end surface of the metal can body 100, thereby facilitating the sealing of the inner cavity of the metal can.

[0075] Part of the sealing gasket may be bonded and fixed to the cover portion 210 , and when the pull ring 300 is pulled to tear the cover portion 210 , the sealing gasket may be removed from the upper end surface of the metal can body 100 along with the torn portion of the cover portion 210 .

[0076] Alternatively, both ends of the sealing gasket are respectively in contact with the sealing cover 210 and the upper end surface of the metal can body 100 . After the metal can cover 200 is removed from the upper end of the metal can body 100 , the sealing gasket can be removed from the upper end of the metal can body 100 .

[0077] In order to make the metal can have a better sealing effect, the first sealing structure 410 can be made to surround the upper end of the metal can body 100 , and a sealing gasket is provided between the sealing cover 210 and the end surface of the upper end of the metal can body 100 .

[0078] When the metal can body 100 includes the mouth 122 , a sealing gasket is provided between the cover portion 210 and the end surface of the upper end of the mouth 122 , and the cover portion 210 is pressed against the end surface of the upper end of the mouth 122 via the sealing gasket.

[0079] In some possible implementations, the pull ring 300 is a plastic pull ring, and one end of the pull tab portion 220 away from the sealing portion 210 is embedded in the pull ring 300 so that the pull tab portion 220 is fixedly connected to the pull ring 300 .

[0080] Like this, plastic pull ring has good wear resistance and corrosion resistance, is beneficial to pull ring 300 to maintain performance.In addition, the pull ring of plastic is easy to form a smooth structure on the surface, makes the user not be easily scratched by the pull ring 300 when pulling the pull ring 300.

[0081] For example, the pull tab portion 220 and the pull ring 300 may be fixedly connected by injection molding.

[0082] For example, the portion of the pull tab portion 220 embedded in the pull ring 300 may have a buckle structure for buckling with the pull ring 300 and combining them in one piece, so that the pull tab portion 220 and the pull ring 300 are combined more firmly.

[0083] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the above embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the above embodiments can still be modified, or some or all of the technical features can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A metal can, characterized in that: Including metal can body, metal can cover and pull ring; The upper end of the metal can body is an opening structure, and the edge of the metal can body at the opening structure is formed with a first curling structure; The metal can cover comprises an integrated cover portion and a pull tab portion, the edge of the cover portion is formed with a second curling structure, the first curling structure and the second curling structure are hooked and matched to form a first curling structure, the cover portion is connected to the metal can body through the first curling structure, and the cover portion seals the opening structure; The pull tab portion is connected to the edge of the cover portion, the pull ring is arranged at one end of the pull tab portion away from the cover portion, and the pull ring is located on the side of the metal can body.

2. The metal can according to claim 1, characterized in that: The metal can body comprises a can body and an upper cover; The upper cover includes an integrated connection portion, a mouth portion and a first curling structure, wherein the connection portion is located at the lower end of the mouth portion, the connection portion is connected to the upper end of the can body, the first curling structure is located at the upper end of the mouth portion, and the metal can cover is connected to the mouth portion through the first curling structure; The mouth is a cylindrical structure, and the diameter of the mouth is smaller than the diameter of the can body.

3. The metal can according to claim 2, characterized in that: The connecting portion includes an integral neck portion and a folded edge portion, the lower end of the neck portion is connected to the folded edge portion, the upper end of the neck portion is connected to the lower end of the mouth portion, and the folded edge portion is connected to the upper end of the can body via a second rolling sealing structure; The diameter of the neck portion gradually decreases from the lower end of the neck portion to the upper end of the neck portion.

4. The metal can according to claim 3, characterized in that: The neck portion is an arc-shaped structure.

5. The metal can according to any one of claims 1 to 4, characterized in that: The edge of the cover portion has a cutout structure; Along the circumference of the cover portion, the cutout structure is located on a side of a portion of the cover portion for connecting with the pull tab portion.

6. The metal can according to claim 5, characterized in that: Along the circumference of the cover portion, both sides of a portion of the cover portion for connecting with the pull tab portion have the cutout structure.

7. The metal can according to any one of claims 1 to 4, characterized in that: The first sealing structure surrounds the upper end of the metal can body; One end of the pull tab portion used for connecting to the cover portion is located between the second curling structure and the side wall of the metal can body.

8. The metal can according to any one of claims 1 to 4, characterized in that: The cover portion covers the end surface of the upper end of the metal can body.

9. The metal can according to any one of claims 1 to 4, characterized in that: A sealing gasket is provided between the sealing cover and the upper end surface of the metal can body, and the sealing cover is pressed against the upper end surface of the metal can body through the sealing gasket.

10. The metal can according to any one of claims 1 to 4, characterized in that: The pull ring is a plastic pull ring, and one end of the pull tab portion away from the sealing portion is embedded in the pull ring so that the pull tab portion is fixedly connected to the pull ring.

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