A ready-to-use bottle cap

The ready-to-use bottle cap, designed with guide bevels and anti-rotation end faces, solves the problems of uneven mixing and liquid leakage, providing a convenient way to prepare beverages and ensuring safe use.

CN122166435APending Publication Date: 2026-06-09台州市一川模具有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
台州市一川模具有限公司
Filing Date
2024-12-09
Publication Date
2026-06-09

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Abstract

This invention provides a ready-to-use bottle cap, comprising an upper cap, a lower cap, a storage housing, and a movable housing. The storage housing includes a threaded section and an insertion section. The upper cap is threadedly mounted on the threaded section. The movable housing has several discharge ports on its side and is threadedly mounted on the bottom of the insertion section. The bottom surface of the storage housing is tightly fitted to the movable housing, forming a sealed storage compartment inside. A first guide block is provided on the insertion section, and a second guide block is provided on the inner wall of the inner housing. The first guide block has a first guide slope and a first anti-rotation end face, and the second guide block has a second guide slope and a second anti-rotation end face. The inclination direction of the second guide slope is opposite to that of the first guide slope. Compared with the prior art, in this ready-to-use bottle cap, dispensing and opening are achieved by rotating the upper cap in different directions, which is convenient to use, eliminating the need to rotate different caps separately or press, making it quick and effortless.
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Description

Technical Field

[0001] This invention belongs to the field of material packaging technology and relates to a ready-to-use bottle cap. Background Technology

[0002] Traditional beverages involve pre-mixing liquids (water) with ingredients (such as various flavored concentrates, powders, or soluble substances like honey) and bottling them. To extend shelf life, preservatives and other chemicals are often added, which can be detrimental to health. Therefore, bottle caps with storage compartments were invented. The soluble substances are pre-filled in the storage compartment, and when ready to drink, the soluble substances are removed from the cap, poured into the beverage bottle, and mixed with the liquid to form the final beverage. For example, the ready-to-use bottle in Chinese patent number "202321450871.4" includes a cap body and a bottle body. The cap body has a built-in dispensing compartment. There is a gap between the outer wall of the dispensing compartment and the inner wall of the cap, and the surface of the dispensing compartment facing the bottle body is a ruptureable seal. The bottle body includes a bottle neck, and the cap body is connected to the bottle body through the bottle neck. A conical piercing assembly is movably disposed on the inner wall of the bottle neck through a limiting member. The conical piercing assembly is located below the dispensing compartment and is threadedly connected to the cap body. When the cap body is closed on the bottle body, under the limiting action of the limiting member, the conical piercing assembly can move towards the dispensing compartment and pierce the seal as the cap body rotates. The limiting member prevents the conical piercing assembly from moving downwards again as the cap is closed. The conical piercing assembly is one of a conical needle or a conical guide tube. However, the above structure has the following problems: after the seal is punctured, the contents of the mixing chamber fall into the bottle and mix with the liquid in the bottle, but they cannot be mixed evenly. Usually, shaking is required to mix them evenly. However, in the above structure, the bottle cap is already open at this time, and the bottle cannot be shaken. Otherwise, it is easy to cause liquid leakage. The bottle cap must be screwed back on and shaken again before the bottle can be opened again for drinking, which is a troublesome process. Summary of the Invention

[0003] The purpose of this invention is to address the aforementioned problems in the prior art by providing a convenient, ready-to-use bottle cap.

[0004] The objective of this invention can be achieved through the following technical solution: a ready-to-use bottle cap, comprising an upper cap, a lower cap, a storage shell, and a movable shell. The lower cap includes an inner shell and an outer shell. The inner wall of the outer shell is provided with an internal thread that mates with the bottle opening, such that the bottle opening is located between the outer shell and the inner shell. The storage shell is hollow and includes a threaded section and an insertion section. The upper cap is threadedly installed on the threaded section. The movable shell has several discharge ports on its side. The movable shell is threadedly installed at the bottom of the insertion section. The bottom surface of the storage shell is flush with the movable shell. The movable shell is tightly attached to form a sealed storage bin inside the storage shell. The storage bin contains soluble substances. Both the insertion section and the movable shell are located inside the inner shell. The movable shell is movably disposed inside the inner shell by the limiting mechanism. The insertion section is provided with a first guide block, and the inner wall of the inner shell is provided with a second guide block. The first guide block is provided with a first guide slope and a first anti-rotation end face. The second guide block is provided with a second guide slope and a second anti-rotation end face. The inclination direction of the second guide slope is opposite to the inclination direction of the first guide slope.

[0005] In the aforementioned ready-to-use bottle cap, when the top cap is rotated, the storage shell rotates synchronously with the top cap. The first guide slope contacts the second guide slope and guides the rotation of the storage shell relative to the bottom cap. Under the limiting action of the limiting mechanism, the movable shell can move downward as the storage shell rotates, and the material in the storage bin quickly falls into the bottle body through the discharge port to mix with the liquid.

[0006] In the aforementioned ready-to-use bottle cap, rotating the upper cap in the opposite direction causes the first anti-rotation end face and the second anti-rotation end face to come into contact, positioning the storage shell on the lower cap. The upper cap rotates relative to the storage shell, causing the top of the storage shell to open, allowing drinking to be made through the top opening of the storage shell.

[0007] In the aforementioned ready-to-use bottle cap, the insertion section has a mounting flange, the inner wall of the inner shell has multiple mounting blocks, the top of the mounting blocks has a mounting guide slope, the bottom surface of the mounting blocks forms a mounting positioning surface, and the insertion section is inserted into the inner shell so that the mounting flange is engaged below the mounting blocks.

[0008] In the aforementioned ready-to-use bottle cap, the limiting mechanism includes a plurality of first limiting protrusions located on the movable housing and a plurality of second limiting protrusions located on the inner wall of the inner housing. A limiting groove is formed between two adjacent second limiting protrusions. The first limiting protrusion is located in the limiting groove. The first limiting protrusion and the second limiting protrusion restrict the movement of the movable housing in the longitudinal direction.

[0009] In the aforementioned ready-to-use bottle cap, the limiting mechanism further includes a third limiting protrusion located on top of the first limiting protrusion and a plurality of fourth limiting protrusions located at the bottom of the inner wall of the inner housing. The fourth limiting protrusions are located at the bottom of the limiting groove. During the downward movement of the movable housing relative to the storage housing and the lower cover, when the third limiting protrusion contacts the fourth limiting protrusion, the movable housing stops moving downward.

[0010] In the aforementioned ready-to-use bottle cap, the bottom of the upper cap is provided with a first anti-theft ring, and the top of the lower cap is provided with a second anti-theft ring. The first anti-theft ring and the upper cap, as well as the second anti-theft ring and the lower cap, are connected by several connecting bridges. The inner wall of the second anti-theft ring is uniformly provided with a plurality of first anti-theft protrusions, and the outer wall of the storage shell is correspondingly provided with a plurality of second anti-theft protrusions. The second anti-theft protrusions are engaged between two adjacent first anti-theft protrusions, so that the second anti-theft ring rotates synchronously with the storage shell.

[0011] Compared with existing technologies, this ready-to-use bottle cap utilizes the cooperation of the first and second guide slopes to allow the storage shell to rotate synchronously with the top cap, enabling dispensing. At this point, the bottle is not yet opened, allowing for shaking without concern about leakage. When the top cap is rotated in the opposite direction, the cooperation of the first and second anti-rotation end faces positions the storage shell under the bottom cap, opening the top opening of the storage shell for drinking. Dispensing and opening are achieved by rotating the top cap in different directions, making it convenient and quick, eliminating the need to rotate different caps separately or press them. The movable shell is first threaded onto the storage shell and then inserted synchronously into the bottom cap, simplifying the assembly process and saving time. The second anti-theft ring rotates synchronously with the storage shell. The presence of a broken connecting bridge between the second anti-theft ring and the bottom cap indicates whether the storage shell has rotated relative to the bottom cap, thus determining whether the storage compartment has been opened and ensuring drinking safety. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the ready-to-use bottle cap.

[0013] Figure 2 This is an exploded structural diagram of the ready-to-use bottle cap.

[0014] Figure 3 This is a cross-sectional structural diagram of the ready-to-use bottle cap.

[0015] In the diagram, 1. Upper cover; 2. Lower cover; 21. Second guide block; 211. Second guide ramp; 212. Second anti-rotation end face; 22. Mounting block; 221. Mounting guide ramp; 222. Mounting positioning surface; 23. Inner shell; 24. Outer shell; 3. Storage shell; 31. Threaded section; 32. Insertion section; 321. First guide block; 322. First guide ramp; 323. First anti-rotation end face; 33. Mounting flange; 34. Second anti-theft protrusion; 4. Movable shell; 41. Discharge port; 5. Limiting mechanism; 51. First limiting protrusion; 52. Second limiting protrusion; 53. Third limiting protrusion; 54. Fourth limiting protrusion; 6. First anti-theft ring; 7. Second anti-theft ring; 71. First anti-theft protrusion. Detailed Implementation

[0016] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0017] like Figure 1-3As shown, this ready-to-use bottle cap includes an upper cap 1, a lower cap 2, a storage housing 3, and a movable housing 4. The lower cap 2 includes an inner housing 23 and an outer housing 24. The inner wall of the outer housing 24 has an internal thread that mates with the bottle opening, placing the bottle opening between the outer housing 24 and the inner housing 23. The storage housing 3 is hollow and includes a threaded section 31 and an insertion section 32. The upper cap 1 is threaded onto the threaded section 31. The movable housing 4 has several discharge ports 41 on its side. The movable housing 4 is threaded onto the bottom of the insertion section 32. The bottom surface of the storage housing 3 is in close contact with the movable housing 4, forming a sealed storage chamber inside the storage housing 3, which can hold soluble substances. Both the insertion section 32 and the movable housing 4 are located within the inner housing 23, and the movable housing 4 is movably positioned within the inner housing 23 by a limiting mechanism 5. The insertion section 32 is provided with a first guide block 321, and the inner wall of the inner shell 23 is provided with a second guide block 21. The cross-sections of the first guide block 321 and the second guide block 21 are both approximately triangular. The first guide block 321 is provided with a first guide slope 322 and a first anti-rotation end face 323, and the second guide block 21 is provided with a second guide slope 211 and a second anti-rotation end face 212. The inclination direction of the second guide slope 211 is opposite to the inclination direction of the first guide slope 322. In this embodiment, the first guide slope 322 is inclined inward in a clockwise direction, and the second guide slope 211 is inclined inward in a counterclockwise direction. Rotating the top cover 1 clockwise causes the storage shell 3 to rotate synchronously. The first guide slope 322 contacts the second guide slope 211 and guides the rotation of the storage shell 3 relative to the bottom cover 2. Under the limiting action of the limiting mechanism 5, the movable shell 4 can move downwards as the storage shell 3 rotates. At this time, the material in the storage bin quickly falls into the bottle through the discharge port 41 and mixes with the liquid to form the desired beverage. Rotating the top cover 1 in the opposite direction, i.e., counterclockwise, causes the first anti-rotation end face 323 and the second anti-rotation end face 212 to contact and position the storage shell 3 on the bottom cover 2. The top cover 1 rotates relative to the storage shell 3, opening the top of the storage shell 3, allowing the beverage to be consumed through the top opening.

[0018] In the above technical solution: a mounting flange 33 is formed on the insertion section 32, and multiple mounting blocks 22 are provided on the inner wall of the inner housing 23. The top of the mounting block 22 is provided with a mounting guide slope 221, and the bottom surface of the mounting block 22 forms a mounting positioning surface 222. The insertion section 32 is inserted into the inner housing 23, so that the mounting flange 33 is engaged below the mounting block 22. The mounting guide slope 221 guides the engagement process, and the mounting positioning surface 222 positions the upward movement of the mounting flange 33 to prevent the insertion section 32 from moving upward and detaching from the lower cover 2.

[0019] In the above technical solution: the limiting mechanism 5 includes a plurality of first limiting protrusions 51 located on the movable housing 4 and a plurality of second limiting protrusions 52 located on the inner wall of the inner housing 23. A limiting groove is formed between two adjacent second limiting protrusions 52, and the first limiting protrusions 51 are located in the limiting groove. The first limiting protrusions 51 and the second limiting protrusions 52 restrict the movement of the movable housing 4 in the longitudinal direction, preventing the movable housing 4 from rotating relative to the lower cover 2.

[0020] In the above technical solution, the limiting mechanism 5 also includes a third limiting protrusion 53 located at the top of the first limiting protrusion 51 and a plurality of fourth limiting protrusions 54 located at the bottom of the inner wall of the inner housing 23. The fourth limiting protrusions 54 are located at the bottom of the limiting groove. During the downward movement of the movable housing 4 relative to the storage housing 3 and the lower cover 2, when the third limiting protrusion 53 contacts the fourth limiting protrusion 54, the movable housing 4 stops moving downward. The third limiting protrusion 53 limits the movement of the movable housing 4 to prevent the movable housing 4 from moving downward excessively and detaching from the storage housing 3.

[0021] In the above technical solution: the bottom of the upper cover 1 is provided with a first anti-theft ring 6, and the top of the lower cover 2 is provided with a second anti-theft ring 7. The first anti-theft ring 6 and the upper cover 1, and the second anti-theft ring 7 and the lower cover 2 are connected by several connecting bridges. The inner wall of the second anti-theft ring 7 is uniformly provided with a plurality of first anti-theft protrusions 71, and the outer wall of the storage shell 3 is correspondingly provided with a plurality of second anti-theft protrusions 34. The second anti-theft protrusions 34 are engaged between two adjacent first anti-theft protrusions 71, so that the second anti-theft ring 7 rotates synchronously with the storage shell 3. Whether the connecting bridge between the second anti-theft ring 7 and the lower cover 2 is broken is used to determine whether the storage shell 3 has rotated relative to the lower cover 2 and whether the storage compartment has been opened.

[0022] In the above technical solution: the storage housing 3 also includes a connecting section located between the threaded section 31 and the insertion section 32. The bottom of the connecting section contacts the top surface of the second anti-theft ring 7 to prevent the storage housing 3 from moving downward relative to the lower cover 2.

[0023] In this ready-to-use bottle cap, the first guide slope 322 and the second guide slope 211 cooperate to allow the storage shell 3 to rotate synchronously with the upper cap 1, enabling dispensing. At this time, the bottle body is not yet opened, and the bottle can be shaken without worrying about liquid leakage. When the upper cap is rotated in the opposite direction, the first anti-rotation end face 323 and the second anti-rotation end face 212 cooperate to position the storage shell 3 under the lower cap 2, and the upper cap 1 opens the top opening of the storage shell 3 to allow drinking. Dispensing and opening are achieved by rotating the upper cap 1 in different directions, which is convenient to use, without the need to rotate different caps separately or press, and is quick and effortless. The movable shell 4 is first threaded onto the storage shell 3 and then inserted into the lower cap 2 synchronously with the storage shell 3, making the assembly process of the movable shell 4 simpler and more time-saving. The second anti-theft ring 7 rotates synchronously with the storage shell 3. By checking whether the connecting bridge between the second anti-theft ring 7 and the lower cap 2 is broken, it is determined whether the storage shell 3 has rotated relative to the lower cap 2, thereby determining whether the storage compartment has been opened and ensuring drinking safety.

[0024] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

[0025] Although this document frequently uses terms such as upper cover 1; lower cover 2; second guide block 21; second guide ramp 211; second anti-rotation end face 212; mounting block 22; mounting guide ramp 221; mounting positioning surface 222; inner shell 23; outer shell 24; storage shell 3; threaded section 31; insertion section 32; first guide block 321; first guide ramp 322; first anti-rotation end face 323; mounting flange 33; second anti-theft protrusion 34; movable shell 4; discharge port 41; limiting mechanism 5; first limiting protrusion 51; second limiting protrusion 52; third limiting protrusion 53; fourth limiting protrusion 54; first anti-theft ring 6; second anti-theft ring 7; first anti-theft protrusion 71, etc., the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of the invention; interpreting them as any additional limitation would contradict the spirit of the invention.

[0026] Contents not described in detail herein are existing technologies known to those skilled in the art. The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art can make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A ready-to-use bottle cap, characterized in that... The system includes an upper cover (1), a lower cover (2), a storage shell (3), and a movable shell (4). The lower cover (2) includes an inner shell (23) and an outer shell (24). The inner wall of the outer shell (24) is provided with an internal thread that mates with the bottle opening, so that the bottle opening is located between the outer shell (24) and the inner shell (23). The storage shell (3) is hollow and includes a threaded section (31) and an insertion section (32). The upper cover (1) is threaded onto the threaded section (31). The movable shell (4) has several discharge ports (41) on its side. The movable shell (4) is threaded onto the bottom of the insertion section (32). The bottom surface of the storage shell (3) is in close contact with the movable shell (4), so that the storage shell (3) is filled with material. A sealed storage bin is formed, in which soluble substances are placed. The insertion section (32) and the movable shell (4) are both located inside the inner shell (23). The movable shell (4) is movably disposed inside the inner shell (23) by the limiting mechanism (5). The insertion section (32) is provided with the first guide block (321). The inner wall of the inner shell (23) is provided with the second guide block (21). The first guide block (321) is provided with the first guide slope (322) and the first anti-rotation end face (323). The second guide block (21) is provided with the second guide slope (211) and the second anti-rotation end face (212). The inclination direction of the second guide slope (211) is opposite to the inclination direction of the first guide slope (322). Rotate the top cover (1), and the storage shell (3) rotates synchronously with the top cover (1). The first guide slope (322) contacts the second guide slope (211) and guides the rotation of the storage shell (3) relative to the bottom cover (2). Under the limiting action of the limiting mechanism (5), the movable shell (4) can move downward with the rotation of the storage shell (3). The material in the storage bin falls quickly into the bottle body through the discharge port (41) and mixes with the liquid. Rotate the upper cover (1) in the opposite direction, and the first anti-rotation end face (323) and the second anti-rotation end face (212) come into contact to position the storage shell (3) on the lower cover (2). The upper cover (1) rotates relative to the storage shell (3) to open the top of the storage shell (3), so that drinking can be done through the top opening of the storage shell (3).

2. The ready-to-use bottle cap according to claim 1, characterized in that... The insertion section (32) has a mounting flange (33) and the inner wall of the inner housing (23) is provided with a plurality of mounting blocks (22). The top of the mounting block (22) is provided with a mounting guide slope (221) and the bottom surface of the mounting block (22) forms a mounting positioning surface (222). The insertion section (32) is inserted into the inner housing (23) so that the mounting flange (33) is engaged below the mounting block (22).

3. The ready-to-use bottle cap according to claim 1, characterized in that... The limiting mechanism (5) includes a plurality of first limiting protrusions (51) located on the movable housing (4) and a plurality of second limiting protrusions (52) located on the inner wall of the inner housing (23). A limiting groove is formed between two adjacent second limiting protrusions (52). The first limiting protrusions (51) are located in the limiting groove. The first limiting protrusions (51) and the second limiting protrusions (52) restrict the movement of the movable housing (4) in the longitudinal direction.

4. A ready-to-use bottle cap according to claim 3, characterized in that... The limiting mechanism (5) further includes a third limiting protrusion (53) located on top of the first limiting protrusion (51) and a plurality of fourth limiting protrusions (54) located at the bottom of the inner wall of the inner housing (23). The fourth limiting protrusions (54) are located at the bottom of the limiting groove. During the process of the movable housing (4) moving downward relative to the storage housing (3) and the lower cover (2), when the third limiting protrusion (53) contacts the fourth limiting protrusion (54), the movable housing (4) stops moving downward.

5. A ready-to-use bottle cap according to claim 1, characterized in that... The bottom of the upper cover (1) is provided with a first anti-theft ring (6), and the top of the lower cover (2) is provided with a second anti-theft ring (7). The first anti-theft ring (6) and the upper cover (1) and the second anti-theft ring (7) and the lower cover (2) are connected by several connecting bridges. The inner wall of the second anti-theft ring (7) is uniformly provided with a plurality of first anti-theft protrusions (71), and the outer wall of the storage shell (3) is provided with a plurality of second anti-theft protrusions (34). The second anti-theft protrusions (34) are inserted between two adjacent first anti-theft protrusions (71), so that the second anti-theft ring (7) rotates synchronously with the storage shell (3).