TWI747548B - Combined metal cover for easy disassembly - Google Patents

Abstract

A combined metal cap that is easy to disassemble is a combined metal bottle cap that can be twisted open by hand. The cap uses aluminum and iron metal parts. The main structure of the cap is completed by aluminum parts. The parts realize the function of vacuum recognition and strengthen the sealing. The combination of the parts can be released by the means of pulling a tear ring, which is beneficial to the classification and recycling of metals.

Description

Combined metal cover for easy disassembly

The present invention is related to bottle caps. More specifically, it relates to a combined metal bottle cap that can be twisted open with bare hands. The bottle cap uses two metal parts, and the combination of parts can be released by pulling a tear ring. relation.

The metal bottle cap that can be twisted open with bare hands is typical as disclosed in CN208264901. It includes a bottle cap body made of metal material and a cushion block arranged on the top of the inner cavity of the bottle cap body. The inner circumferential wall of the bottle cap body is provided with internal threads, and the outer circumferential wall of the bottle cap body is provided with external threads. Since both the internal thread and the external thread are arranged as uniformly distributed multi-thread threads, the metal bottle cap has the characteristics of a small screw cap angle, and at the same time, the sealing effect of the metal bottle cap does not have any influence.

This type of metal bottle cap does not provide the function of vacuum identification, so the scope of application is limited.

The purpose of the present invention is to provide a combined metal bottle cap that can be twisted open with bare hands. The bottle cap uses two metal parts: aluminum and iron. The components can realize the vacuum recognition of the top cover and strengthen the sealing function. The combination relationship between the main body of the bottle cap and the top cover can be released by the method of pulling a tearing ring, which is beneficial to the classification and recycling of metals.

The technical means of the present invention to achieve the above-mentioned objectives and effects:

A combined metal cover that is easy to disassemble, including:

A bottle cap body made of a first metal material. The bottle cap body includes a tear-off ring and a ring-shaped side wall; the tear-off ring includes a ring-shaped top and a rounded corner that turns downwards from the top Part, and a connecting part formed downwards following the rounded part; the top part of its inner circumference extends a pull tab horizontally toward the center; extends from one side of the pull tab through the top, the rounded part and The connecting portion is provided with a first slit with a thinner thickness, and the top portion corresponding to the pull tab extends to the round corner portion with a third slit with a thinner thickness; the annular side wall passes through a weak portion with a thinner structure Connected with the connecting part;

A top cover made of a second metal material, the center of the top cover is formed with a floating up and down vacuum identification button, a soft elastic sealing ring is fixed on the inner surface of the periphery of the top cover, and the top cover assembly is positioned on In the tear-off ring, the vacuum identification button is exposed in the area surrounded by the top of the tear-off ring.

1: The main body of the bottle cap

10: Tear and pull the lid

11: top

12: Fillet

13: Connection part

14: pull tab

15: The first rift

16: second rift

17: The third rift

20: Annular side wall

21: Weak part

22: Supporting Fate

24: concave hobbing

30: safety ring

31: Bridging point

32: Locking part

40: top cover

41: cover

42: Vacuum identification button

43: Fillet

44: Sealing ring

45: Crimping

50: bottle mouth

51: bottle thread

52: Stop

[Figure 1] The first perspective three-dimensional external view of the present invention.

[Fig. 2] A second perspective three-dimensional external view of the present invention.

[Figure 3] A top view of the present invention.

[Figure 4] A cross-sectional view of the present invention.

[Figure 5] An enlarged partial cross-sectional view of the present invention.

[Figure 6] A schematic diagram of the combination of the metal cap and the bottle mouth of the present invention.

[Figure 7] A cross-sectional view of the combination of the metal cap and the bottle mouth of the present invention.

[Figure 8] An enlarged cross-sectional view of the combination of the metal cap and the bottle mouth of the present invention.

[Figure 9] A schematic diagram of the separation of the metal cap from the bottle mouth of the present invention.

[Figure 10] One of the schematic diagrams of disassembling the metal cover of the present invention.

[Figure 11] The second schematic diagram of disassembling the metal cover of the present invention.

In order to facilitate the description of the central idea of the present invention expressed in the column of the above-mentioned summary of the invention, specific embodiments are used to express it. The various objects in the embodiment are drawn according to the proportion, size, deformation or displacement suitable for explanation, rather than drawn according to the proportion of the actual element, which will be described first. In the following description, the same and symmetrically arranged elements are denoted by the same numbers.

As shown in Figs. 1 to 5, the combined metal cap of the present invention mainly includes a bottle cap body 1 made of aluminum and a top cap 40 made of iron.

The bottle cap body 1 includes a tear ring 10 and an annular side wall 20. The tear ring 10 includes a ring-shaped top portion 11, a rounded corner portion 12 connected to the top portion 11 to bend downward, and a connecting portion 13 connected to the round corner portion 12 and formed downward. The top portion 11 of the tear ring 10 extends a pull tab 14 horizontally toward the center on a part of its inner circumference. Extending from one side of the pull tab 14 through the top portion 11, the rounded portion 12 and the connecting portion 13 is provided with a first slit 15 with a thinner thickness, and extends from the other side of the pull tab 14 through the top portion 11 and The rounded portion 12 is provided with a second slit 16 with a thinner thickness. The top portion 11 corresponding to the diameter of the center point of the pull tab 14 extends to the rounded corner portion 12 with a third slit 17 with a thinner thickness. The ring-shaped side wall 20 extends vertically and continues below the connecting portion 13, and the junction of the ring-shaped side wall 20 and the connecting portion 13 is provided with a supporting edge 23 with an outer concave and an inner convex, and is formed on the supporting edge 23 The upper part is a weak part 22 where the thickness of the structure is thinned. A safety ring 30 is connected to the bottom edge of the annular side wall 20 by a plurality of breakable bridge points 31, and the bottom of the safety ring 30 is bent inward to form a locking portion 32.

The top cover 40 includes a disc-shaped cover plate 41, and the center of the cover plate 41 is formed to be up and down. Floating vacuum identification button 42, the peripheral edge of the cover plate 41 is bent downward to form a rounded portion 43, the peripheral edge of the cover plate 41 and the inner surface of the rounded portion 43 are combined with a soft elastic sealing ring 44, the cover The bottom end of the rounded portion 43 of the plate 41 is bent inward to form a bead 45, and the open end of the bead 45 is covered by the sealing ring 44. The top cover 40 is assembled in the tear-off ring 10, the circumferential top surface of the cover plate 41 is in contact with the inner surface of the top portion 11 of the tear-off ring 10, and the vacuum identification button 42 is exposed on the top portion 11 of the tear-off ring 10 In the framed area, the rounded portion 12 of the tear ring 10 fits and receives the rounded portion 43 of the top cover 40, and the supporting edge 23 supports the bottom of the curl 45 of the top cover 40.

As shown in Figures 6 to 8, the combined metal cap is encapsulated in a bottle mouth 50, the top cap 40 closes the bottle mouth 50, the sealing ring 44 tightly presses the circumference of the top surface of the bottle mouth 50, and the bottle cap body 1 Encapsulates the entire outside of the bottle mouth 50, the annular side wall 20 rolls a concave rolling tooth 24 according to the bottle mouth thread 51, and the safety ring 30 is located under the stop portion 52 of the bottle mouth 50. Due to the vacuum in the bottle, the vacuum identification button 42 sinks downward.

As shown in Figure 9, the method of opening the combined metal cap to take out the contents of the bottle is to apply a twisting force to the bottle cap body 1, causing the bottle cap body 1 to rotate upward along the screw thread 51 of the bottle mouth. The locking portion 32 of the safety ring 30 is restricted under the stop portion 52 of the bottle mouth 50, and the safety ring 30 cannot move up with the bottle cap body 1, so that the rotation of the bottle cap body 1 is twisted. All the bridging points 31 are twisted off by force, the safety ring 30 is separated from the annular side wall 20, the safety ring 30 remains under the stop 52 of the bottle mouth 50, and the bottle cap body 1 is rotated upward Open, the supporting edge 23 pushes the top cover 40 upwards, releasing the sealing relationship between the top cover 40 and the bottle mouth 50, the vacuum identification button 42 is raised upward, and the top cover 40 follows the bottle cap body 1 Leave the bottle mouth 50.

As shown in Fig. 10 and Fig. 11, as mentioned above, the bottle cap body 1 is made of aluminum, and the top cap 40 is made of iron, which should be disassembled and recycled when discarded. Pull the pull tab 14 up with your bare hands to produce a tear from the pull tab 14 The pulling force tears the first slit 15 because the first slit 15 extends from one side of the pull tab 14 through the top portion 11, the rounded corner portion 12 and the connecting portion 13, so when the first slit 15 is torn After cracking, the tear ring 10 will break; the tearing force generated by the pull tab 14 may also cause the second split 16 to split, but because the second split 16 extends from the other side of the pull tab 14 through the The top portion 11 and the rounded corner portion 12, therefore, the second crack 16 will not break the connecting portion 13 there. Therefore, the pull tab 14 will still remain on the tear ring 10.

After the tear ring 10 is disconnected from the first slit 15, the pull tab 14 can be used to stretch the broken tear ring 10 outward to make the third slit 17 crack; at this time, conform to the abduction The force can break all or part of the weakened portion 22, so that the tear-off ring 10 and the annular side wall 20 are completely or partly separated. In any case, the tear-off ring 10 can loosen the top cover 40. The top cap 40 and the bottle cap body 1 can be separated. Since the third slit 17 extends from the top portion 11 to the rounded portion 12, the third slit 17 does not break the connecting portion 13 there, but causes it to expand due to the tear ring 10 However, it is bent, therefore, the tear ring 10 becomes an open ring shape, but it will not break into two sections.

1: The main body of the bottle cap

10: Tear and pull the lid

11: top

12: Fillet

13: Connection part

14: pull tab

15: The first rift

16: second rift

17: The third rift

20: Annular side wall

30: safety ring

40: top cover

41: cover

42: Vacuum identification button

Claims (5)

A combined metal cover that is easy to disassemble, including: A bottle cap body made of a first metal material. The bottle cap body includes a tear-off ring and a ring-shaped side wall; the tear-off ring includes a ring-shaped top and a rounded corner that turns downwards from the top Part, and a connecting part formed downwards following the rounded part; the top part of its inner circumference extends a pull tab horizontally toward the center; extends from one side of the pull tab through the top, the rounded part and The connecting portion is provided with a first slit with a thinner thickness, and the top portion corresponding to the pull tab extends to the round corner portion with a third slit with a thinner thickness; the annular side wall passes through a weak portion with a thinner structure Connected with the connecting part; A top cover made of a second metal material, the center of the top cover is formed with a floating up and down vacuum identification button, a soft elastic sealing ring is fixed on the inner surface of the periphery of the top cover, and the top cover assembly is positioned on In the tear-off ring, the vacuum identification button is exposed in the area surrounded by the top of the tear-off ring. As described in claim 1, the assembled metal cover is easy to disassemble, wherein, extending from the other side of the pull tab, through the top and the rounded corners, a second slit with a thinner thickness is provided. The assembled metal cover that is easy to disassemble as described in claim 1, wherein the annular side wall is rolled with a concave hob; a safety ring and the bottom edge of the annular side wall are connected by several breakable bridging points, The bottom of the safety ring is bent inward to form a locking portion. As described in claim 1, the easy-to-disassemble combined metal cover, wherein a supporting edge is provided at the junction of the annular side wall and the connecting portion, and the supporting edge supports the bottom edge of the top cover, and the supporting edge The weakened portion is formed on the edge. As described in claim 1, the easy-to-disassemble combined metal cover, wherein the top cover includes a disc-shaped cover plate, the center of the cover plate is formed with the vacuum identification button, and the periphery of the cover plate is bent downward A rounded corner part is reshaped, and the bottom end of the rounded corner part is bent inward to form a curled edge, and the open end of the curled edge is covered by the sealing ring.

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