Metal tank capable of preventing insects and ants and metal tank

Abstract

The utility model discloses an insect and ant prevention metal can body and metal can, the metal can body comprises a can body and a can bottom, the can body comprises an arching part of a micro-expansion structure, an inward shrinkage part of an inward shrinkage recess, a convex neck part protruding outwards and an upper straight part from bottom to top in the height direction of the can body, and the upper straight part is used for installing a can cover in a matched mode. The inner shrinkage part is divided into an arched part and a convex neck part, the convex neck part is a convex edge or an arc-shaped bulge which is convexly arranged around the central axis of the can body, the upper side of the upper straight part is provided with an upper curled edge, the lower side of the can body is provided with a lower curled edge, and the distance between the position, with the largest inner diameter, of the convex neck part and the top of the can body in the height direction is larger than or equal to 8 mm and smaller than or equal to 15 mm. Compared with the prior art, insects and ants can be effectively blocked, and the sealing performance is good.

Description

Technical Field

[0001] This utility model relates to the field of metal packaging, and more particularly to metal cans that are resistant to insects and ants. Background Technology

[0002] Currently, three-piece dry powder cans made of tinplate are manufactured using various methods to enhance their radial pressure resistance. These include can body rolling, material thickening, can body micro-arching, and adding rolling after micro-arching. Can body rolling: An additional rolling process is added during production, using a rolling mold to create regular, inwardly concave circular indentations on the can body, increasing its strength. Material thickening: Currently, three-piece tinplate cans are available in thicknesses of 0.17, 0.19, 0.21, 0.23, 0.25, and 0.28 mm, with the appropriate thickness selected based on specific requirements to improve can body strength. Can body micro-arching: An expansion mold is used to expand the can body, creating a micro-arched structure that enhances its radial pressure resistance. Can body micro-arching followed by rolling: While expanding the can body using an expansion mold, circular rolling ribs are directly formed on the can body, further increasing strength.

[0003] However, increasing the tank's strength by adding material thickness undoubtedly increases production costs. In contrast, using ribbed construction can effectively enhance tank strength. Micro-arching of the tank or applying ribbed construction on top of that can significantly improve the tank's radial pressure resistance. However, micro-arching of the tank leads to an increased inner diameter, which may increase the difficulty for users to operate the three-piece tank with one hand.

[0004] The greater the slight arching of the can, the larger the diameter of the corresponding section. While this helps improve the can's strength, it may also increase the difficulty of use for the user. Furthermore, with the slight arching, the finished three-piece can, when fitted with the plastic cap, will have a narrower upper section and a wider lower section. Moreover, existing plastic caps have gaps between them and the metal can, posing a risk of insect intrusion during use. Additionally, during the filling of dry powder into the metal can, the final capping process requires vacuuming the can, placing higher demands on the strength of the lower half of the three-piece can, a point that current products do not adequately consider.

[0005] Therefore, there is an urgent need for a metal can that can solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a metal can and a metal container that prevents insects and ants from entering, which can effectively block insects and ants and has good sealing properties.

[0007] To achieve the above objectives, this utility model provides a metal can for preventing insects and ants, comprising a can body and a can bottom. The can body, from bottom to top along its height direction, includes a slightly bulging arched portion, an inwardly recessed portion, an outwardly protruding neck, and an upper straight portion. The inwardly recessed portion separates the arched portion and the neck. The neck is a convex ridge or arc-shaped protrusion formed around the central axis of the can body. The upper straight portion has an upper rolled edge on its upper side, and the can body has a lower rolled edge on its lower side. The distance in the height direction between the position with the largest inner diameter of the neck and the top of the can body is greater than or equal to 8 mm and less than or equal to 15 mm.

[0008] Preferably, the height difference between the region with the largest inner diameter of the convex neck and the top of the can body is a first distance, the ratio of the first distance to the height of the arched portion is less than or equal to 1:10, and the ratio of the height of the concave portion to the height of the arched portion is less than or equal to 1:3. This design makes the arched portion forming the micro-expansion structure positioned lower on the can body, which can improve the strength of the lower half of the can body when filling, effectively improving the radial pressure bearing capacity of the can body, resulting in high can body strength.

[0009] Preferably, the area with the largest inner diameter of the convex neck is located in the middle of the height of the convex neck, and the area with the smallest inner diameter of the concave portion is located in the middle of the height of the concave portion. The height of the concave portion is between 25mm and 35mm, and the height of the convex neck is between 8mm and 10mm. This invention specifically forms a concave portion with a height between 25mm and 35mm below the convex neck, which conforms to ergonomic principles, effectively enhancing the user's grip and reducing the difficulty of one-handed operation.

[0010] Specifically, the height of the arched portion is 105mm-127mm, the diameter of the arched portion at its largest position is 127.5mm-131mm, the diameter of the convex neck at its largest position is 126.5mm-130.5mm, and the diameter of the constricted portion at its smallest position is 124mm-125.5mm.

[0011] Specifically, the distance in the height direction between the position of the largest inner diameter of the convex neck and the top of the can body is 10mm, which is compatible with most plastic caps as can lids.

[0012] Preferably, the diameter of the arched portion at its largest inner diameter position is larger than the diameter of the convex neck at its largest inner diameter position. This design effectively prevents the convex necks of the metal can from rubbing against each other during transportation, while the arched portion is only a slightly expanded structure, resulting in a low probability of friction during transportation and making the can less prone to collapsing.

[0013] Preferably, the tank body further includes a lower straight section located below the arched portion, the height of which is 0-20mm, and the lower rolled edge is located below and connected to the lower straight section. The lower straight section is a straight-body tank design, which allows for flexible adjustment of the overall tank height according to different needs while keeping other tank structures unchanged. Of course, the lower straight section can also be omitted, in which case its height is 0.

[0014] Preferably, the height of the upper straight part is 2mm-4mm, which facilitates the installation of the can lid.

[0015] Preferably, the metal can is a tin can or an aluminum can, which is low in cost.

[0016] This utility model also provides a metal can for preventing insects and ants, including a metal can body and a plastic lid. The metal can body is the same as described above for preventing insects and ants. The plastic lid is fastened to the upper straight part and fits against the upper outer convex surface of the convex neck.

[0017] Compared with the prior art, this utility model has a protruding neck at the opening of the micro-expanded can body, with an upper straight part formed on the protruding neck. The distance between the position of the largest inner diameter of the protruding neck and the top of the can body in the height direction is greater than or equal to 8mm and less than or equal to 15mm. This allows the can lid to fit snugly against the protruding neck when directly installed on the upper straight part, which is aesthetically pleasing. The opening of the can body has high strength and can effectively ensure the sealing of the metal can body when used with the can lid. This allows the can lid to effectively block insects and ants when used with the protruding neck. Attached Figure Description

[0018] Figure 1 This is a perspective view of the metal can body of this utility model.

[0019] Figure 2 This is a side view of the metal can body of this utility model.

[0020] Figure 3 yes Figure 1 Enlarged view of section A. Detailed Implementation

[0021] To explain in detail the technical content, structural features, objectives and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0022] This utility model discloses a metal can for preventing insects and ants, including a metal can body 100 and a plastic lid. The plastic lid is fastened to the upper straight part 14 of the metal can body 100 and is in contact with the upper outer convex surface of the convex neck 13.

[0023] refer to Figures 1 to 3The metal can 100 includes a can body 10 and a can bottom. The can body 10 includes, from bottom to top, a slightly bulging arched portion 11, an inwardly recessed portion 12, an outwardly protruding neck 13, and an upper straight portion 14. The upper straight portion 14 is used to fit and install the can lid. The inwardly recessed portion 12 separates the arched portion 11 and the neck 13.

[0024] The convex neck 13 is a raised ridge or arc-shaped protrusion that protrudes around the central axis of the can body 10, effectively supporting the can lid to seal the can. The area with the largest inner diameter of the convex neck 13 is located in the middle of the height of the convex neck 13, and the area with the smallest inner diameter of the concave portion 12 is located in the middle of the height of the concave portion 12. The ratio of the height difference H6 between the area with the largest inner diameter of the convex neck 13 and the top of the can body 10 to the height of the arched portion 11 is less than or equal to 1:10, and the ratio of the height of the concave portion 12 to the height of the arched portion 11 is less than or equal to 1:3. In this embodiment, the distance H6 between the position with the largest inner diameter of the convex neck 13 and the top of the can body 10 in the height direction is 10mm, which is suitable for most plastic lids. Of course, the size of H6 can also be adjusted according to the actual situation of the can lid; for example, H6 can be between 8mm and 15mm. The height H4 of the arched portion 11 is 105mm to 127mm. The height H3 of the recessed portion 12 is between 25mm and 35mm.

[0025] Preferably, the upper straight portion 14 has an upper rolled edge 15 on its upper side, which facilitates the installation of the can lid. In this embodiment, the upper rolled edge 15 is an outward rolled edge.

[0026] Preferably, the can body 10 further includes a lower straight portion 16 located below the arched portion 11, which facilitates adjustment of the height of the can body 10. The lower straight portion 16 has a lower rolled edge 17 on its lower side.

[0027] Preferably, the diameter of the largest inner diameter of the arched portion 11 is greater than the diameter of the largest inner diameter of the convex neck 13. This design effectively prevents the convex necks 13 of the metal can 100 from rubbing against each other during transportation, while the arched portion 11 is only a slightly expanded structure, which has a low probability of friction during transportation and is less likely to cause the can to collapse.

[0028] The metal can 100 is a tin can or an aluminum can, which is low in cost.

[0029] To facilitate the installation of the can lid, the height of the upper straight part 14 is 2-4 mm, and the distance H1 between the lower edge of the upper straight part 14 and the top of the can body 10 is 5-6 mm. The upper straight part 14 is a straight can section, and the generatrix of the upper straight part 14 in the height direction is parallel to the central axis of the can body 10.

[0030] refer to Figure 2 The height H2 of the protruding neck 13 is between 8mm and 10mm. The diameter L3 of the arched portion 11 at its largest inner diameter is 127.5mm-131mm, the diameter L1 of the protruding neck 13 at its largest inner diameter is 126.5mm-130.5mm, and the diameter L2 of the recessed portion 12 at its smallest inner diameter is 124mm-125.5mm.

[0031] The height H5 of the lower straight part 16 is 0-20mm. The lower straight part 16 is a straight tank design, which can flexibly adjust the overall height of the metal tank 100 according to different needs while ensuring that the other structures of the tank remain unchanged.

[0032] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the scope of the present utility model application shall still fall within the scope of the present utility model.

Claims

1. A metal can body resistant to insects and ants, characterized by: The can body includes a can body and a can bottom, the can body includes, from bottom to top along its height direction, an arch part in a micro-bulging structure, a retracted part in a retracted structure, a convex neck part in an outward convex structure, and an upper straight part, the retracted part separates the arch part and the convex neck part, the convex neck part is a convex rib or an arc convex part around the central axis of the can body, the upper straight part has an upper curled edge on its upper side, the can body has a lower curled edge on its lower side, the distance between the position of the maximum inner diameter of the convex neck part and the top of the can body in the height direction is greater than or equal to 8 mm and less than or equal to 15 mm.

2. The insect and ant proof metal can body of claim 1 wherein: The height difference between the area of the maximum inner diameter of the convex neck part and the top of the can body is a first distance, the ratio between the first distance and the height of the arch part is less than or equal to 1 to 10, and the ratio between the height of the retracted part and the height of the arch part is less than or equal to 1 to 3.

3. The insect and ant proof metal can as defined in claim 1 wherein: The area of the maximum inner diameter of the convex neck part is located in the middle of the height of the convex neck part, the area of the minimum inner diameter of the retracted part is located in the middle of the height of the retracted part, the height of the retracted part is between 25 mm and 35 mm, and the height of the convex neck part is between 8 mm and 10 mm.

4. The insect and ant proof metal can as defined in claim 3 wherein: The height of the arch part is between 105 mm and 127 mm, the diameter of the position of the maximum inner diameter of the arch part is between 127.5 mm and 131 mm, the diameter of the position of the maximum inner diameter of the convex neck part is between 126.5 mm and 130.5 mm, and the diameter of the position of the minimum inner diameter of the retracted part is between 124 mm and 125.5 mm.

5. The insect and ant proof metal can as defined in claim 1 wherein: The diameter of the position of the maximum inner diameter of the arch part is greater than the diameter of the position of the maximum inner diameter of the convex neck part.

6. The insect and ant proof metal can as defined in claim 1 wherein: The distance between the position of the maximum inner diameter of the convex neck part and the top of the can body in the height direction is 10 mm.

7. The insect and ant proof metal can as defined in claim 1 wherein: It also includes a lower straight part located on the lower side of the arch part, the height of the lower straight part is between 0 mm and 20 mm, and the lower curled edge is located on the lower side of the lower straight part and is connected to the lower straight part.

8. The insect and ant proof metal can of claim 1 wherein: The height of the upper straight part is between 2 mm and 4 mm.

9. The insect and ant proof metal can as defined in claim 1 wherein: The metal can body is a tinplate can or an aluminum can.

10. A metal can protected against insects, characterized in that: The metal can body is an anti-insect and anti-ant metal can body as claimed in any one of claims 1 to 8, and the plastic cover is fastened to the upper straight part and is attached to the upper side of the convex neck part.

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