A new ready-to-use screw-on bottle cap

By incorporating a flow outlet and pressure relief hole into the bottle cap design, the problem of cap capacity limitation is solved, enabling complete drinking of the solution and pressure management, while avoiding solution waste and installation risks.

CN224312344UActive Publication Date: 2026-06-02于正初

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
于正初
Filing Date
2025-07-28
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing bottle caps have either too small a capacity or too large a solute compartment, resulting in some beverages not being fully consumed and causing waste.

Method used

A novel ready-to-use screw cap is designed, with an outlet on the side wall of the solute chamber and a sealing ring and a pressure relief hole on the puncture device. Through the cooperation of the sealing ring and the pressure relief hole, the solute is connected to the inner cavity of the bottle and the pressure is released, ensuring that the solution is completely drinkable.

Benefits of technology

It enables the complete consumption of solution in a large-capacity solute chamber, avoids solution waste due to retention, and reduces the pressure risk during cap installation.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to a novel ready-to-use screw cap, which is installed on a bottle body with external threads at the bottle mouth. At least two flow ports are provided on the side wall of the solute chamber. A puncture device placed inside the solute chamber has a first sealing ring. The puncture device has a hollow cylindrical design. After the top cap is closed onto the bottle body, a pressure relief chamber is formed between its outer and inner connecting rings. The puncture device has a pressure relief hole connecting its inner cavity and the pressure relief chamber. Both the outer and inner connecting rings have internal threads. The top of the puncture device and the top of the solute chamber both have external threads. The external thread at the top of the puncture device mates with the internal thread of the inner connecting ring, and the external thread at the top of the solute chamber mates with the internal thread of the outer connecting ring. This utility model has a reasonable structural design. By setting a sealing ring that allows the puncture device to move up and down, and in conjunction with the flow ports, it connects the top chamber of the bottle mouth with the solute chamber. This allows for complete drinking of the solution from the bottle mouth while ensuring a large-capacity solute chamber that extends a considerable distance into the bottle body, avoiding waste caused by solution remaining in the bottle body.
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Description

Technical Field

[0001] This utility model relates to the field of steam equipment, and in particular to a novel ready-to-use screw cap. Background Technology

[0002] With the continuous improvement of living standards, various instant mixed beverages have appeared on the market. These beverages store the solute in a top cap; opening the cap allows the solute to sink into the water or other beverage inside the bottle, enabling immediate consumption. This prevents the nutrients from spoiling and bacteria from growing if the solute is left to steep for too long. No preservatives are added, maximizing the taste and nutritional value of the beverage. Chinese patent document CN220148058U discloses a screw-on, top-piercing instant beverage bottle cap, belonging to the field of bottle cap technology. It includes a cap body, an outer cylinder, and an inner cylinder. The inner cylinder is fitted inside the outer cylinder, with a pointed cone at its end and a piercing opening at the bottom of the outer cylinder that matches the cone. The cap body engages with the top of the outer cylinder. The cap body pushes the inner cylinder downwards via a pushing mechanism. A guide block is provided on the side wall of the outer cylinder, and limiting teeth are provided on the side wall of the inner cylinder that engage with the guide block. This invention uses a pointed cone to open the piercing opening, avoiding leakage that could occur if the cavity containing the solute consists of two parts. However, most existing bottle caps have a small capacity and cannot hold a lot of solute, or if a larger solute chamber is used, some of the beverage cannot flow smoothly from the bottle opening when drinking, resulting in some beverages not being fully consumed and causing waste. Utility Model Content

[0003] The purpose of this invention is to provide a new type of ready-to-use screw cap to solve the problem that most existing bottle caps have a small capacity or use a large solute chamber, which prevents some beverages from being fully consumed and causes waste.

[0004] To address the aforementioned problems, this utility model provides a novel ready-to-use screw cap, installed on the bottle opening. The solute chamber sidewall has at least two flow ports connecting its inner cavity to the inner cavity of the bottle. A puncture device placed inside the solute chamber has a first sealing ring capable of sealing the flow ports. The puncture device is a hollow cylindrical shape. After the top cap is closed on the bottle, a pressure relief chamber is formed between its outer and inner connecting rings. The puncture device has a pressure relief hole connecting its inner cavity to the pressure relief chamber. Both the outer and inner connecting rings have internal threads. The top of the puncture device and the top of the solute chamber both have external threads. The external thread at the top of the puncture device engages with the internal thread of the inner connecting ring, and the external thread at the top of the solute chamber engages with the internal thread of the outer connecting ring.

[0005] The novel ready-to-use screw cap provided by this utility model also has the following technical features:

[0006] Furthermore, the solute chamber includes an insertion section that fits snugly into the bottle neck to form a seal, and a chamber body section disposed below the insertion section; the outer diameter of the chamber body section is slightly smaller than the outer diameter of the insertion section; the flow outlet is disposed on the side wall at the connection between the chamber body section and the insertion section.

[0007] Furthermore, the first sealing ring includes a sleeve surrounding the outer wall of the puncture device, a sealing ring blocking the flow port, and a connecting ring connecting the sealing ring and the sleeve; the sealing ring has a concave design with its opening facing the flow port.

[0008] Furthermore, the outer wall of the puncture device is provided with a plurality of spaced guide blocks; the inner wall of the solute chamber is provided with a plurality of spaced guide strips; the two corners of the guide block away from the puncture device are respectively chamfered and right angle; the side of the guide block with the right angle is a retaining edge; the cross-section of the guide strip is triangular, wherein the right angle side corresponds to the retaining edge; the bottom of the puncture device is a pointed tip that can penetrate the bottom of the solute chamber; the lower part of the side wall of the puncture device is provided with a plurality of spaced leakage holes.

[0009] Furthermore, the solute container includes a connector that connects it to the external thread of the bottle opening; the connector is provided with an anti-detachment ring; the bottle opening is provided with a locking ring located at the lower part of its external thread; the top surface of the locking ring is inclined downward along the direction close to the connector; after the connector is installed, the anti-detachment ring and the lower wall of the locking ring are fitted together to form a lock.

[0010] Furthermore, the pressure relief hole is located at the top of the side wall of the puncture device.

[0011] Furthermore, the puncture device is provided with an external thread set that matches the internal thread of the inner connecting ring; the external thread set consists of multiple sets of spaced thread teeth; the gaps between the multiple sets of thread teeth form a channel connecting the pressure relief hole and the pressure relief chamber.

[0012] Furthermore, the top cover is provided with a second sealing ring that extends into the solute chamber cavity and cooperates with its inlet to seal it.

[0013] Furthermore, the internal threads of the outer connecting ring and the inner connecting ring are arranged in the same direction; the pitch of the outer connecting ring is 1 / 2 to 2 / 3 of the pitch of the inner connecting ring.

[0014] This utility model has the following beneficial effects: The structure of this utility model is reasonable and simple. By setting a sealing ring that allows the puncture device to move up and down, and cooperating with the flow port, the top chamber of the bottle mouth is connected to the solute chamber. While ensuring that the large-capacity solute chamber that extends long into the bottle body is fully consumed from the bottle mouth during inverted drinking, the solution is avoided from being left in the bottle body and wasted. In addition, the pressure relief hole connected to the pressure relief chamber allows for smooth pressure relief of the puncture device during installation, reducing the risk of damage caused by excessive internal pressure during bottle cap installation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention installed on the bottle body according to an embodiment;

[0016] Figure 2 This is a schematic cross-sectional view of the structure of this utility model installed on the bottle body according to an embodiment;

[0017] Figure 3 This is an embodiment of the present utility model. Figure 2 Enlarged view of the A-section structure;

[0018] Figure 4 This is an exploded view of the structure of an embodiment of the present utility model;

[0019] Figure 5 This is a schematic cross-sectional view of an embodiment of the present utility model;

[0020] Figure 6 This is a schematic cross-sectional view of the solute chamber and top cover in an embodiment of the present invention;

[0021] In the diagram: 1-Bottle body, 11-Bottle mouth, 12-Locking ring, 2-Solute chamber, 21-Insertion section, 22-Chamber section, 23-Flow port, 24-Guide strip, 25-Connector, 26-Anti-detachment ring, 3-Piercing device, 31-First sealing ring, 311-Ring sleeve, 312-Sealing ring, 313-Connecting ring, 32-Pressure relief hole, 33-Guide block, 331-Chamfer, 332-Right angle, 333-Side guard, 34-Leakage hole, 35-External thread assembly, 351-Thread tooth, 36-Channel, 4-Top cover, 41-External connecting ring, 42-Inner connecting ring, 43-Pressure relief chamber, 44-Second sealing ring. Detailed Implementation

[0022] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0023] like Figures 1 to 6 The illustration shows one embodiment of the novel ready-to-use screw cap of this utility model.

[0024] A novel ready-to-use screw cap is installed on a bottle body 1 with external threads at the bottle mouth 11. At least two flow ports 23 are provided on the side wall of the solute chamber 2, connecting its inner cavity to the inner cavity of the bottle body 1. A puncture device 3 placed inside the solute chamber 2 has a first sealing ring 31 that can seal the flow ports 23. The puncture device 3 has a hollow cylindrical design. After the top cap 4 is closed onto the bottle body 1, a pressure relief chamber 43 is formed between its outer connecting ring 41 and inner connecting ring 42. The puncture device 3 has a pressure relief hole 32 connecting its inner cavity to the pressure relief chamber 43. Both the outer connecting ring 41 and the inner connecting ring 42 have internal threads. The top of the puncture device 3 and the top of the solute chamber 2 both have external threads. The external thread at the top of the puncture device 3 engages with the internal thread of the inner connecting ring 42, and the external thread at the top of the solute chamber 2 engages with the internal thread of the outer connecting ring 41. By setting a sealing ring that allows the puncture device to move up and down, and in conjunction with the flow port, the top chamber of the bottle opening is connected to the solute chamber, ensuring complete drinking of the solution from the bottle opening and avoiding waste caused by solution remaining in the bottle. Furthermore, the pressure relief hole connected to the pressure relief chamber allows for smooth pressure relief of the puncture device during installation, reducing damage caused by excessive pressure during top cap installation.

[0025] Specifically, the solute chamber 2 includes an insertion section 21 that fits snugly into the bottle neck 11 to form a seal, and a chamber body section 22 located below the insertion section 21; the outer diameter of the chamber body section 22 is slightly smaller than the outer diameter of the insertion section 21; and an outlet 23 is located on the side wall at the connection between the chamber body section 22 and the insertion section 21. By placing the outlet at the top of the chamber body section, the final solution outflow efficiency is improved, enabling the complete outflow of the beverage for consumption.

[0026] Specifically, the first sealing ring 31 includes a sleeve 311 surrounding the outer wall of the puncture device 3, a sealing ring 312 sealing the flow port 23, and a connecting ring 313 connecting the sealing ring 312 and the sleeve 311; the sealing ring 312 has a concave design with its opening facing the flow port 23. By setting the sealing ring connected by the connecting ring, sealing ring material is saved, while the cavity between the solute chamber and the puncture device is expanded, reducing the compression pressure on the solute during the sealing process.

[0027] Specifically, the outer wall of the puncture device 3 is provided with multiple spaced guide blocks 33; the inner wall of the solute chamber 2 is provided with multiple spaced guide strips 24; the two corners of the guide block 33 away from the puncture device 3 are chamfered 331 and right angle 332 respectively; the side of the guide block 33 with right angle 332 is a retaining edge 333; the cross-section of the guide strip 24 is triangular, in which the right angle side and the retaining edge 333 correspond to each other; the bottom of the puncture device 3 is a pointed tip that can penetrate the bottom of the solute chamber 2; the lower part of the side wall of the puncture device 3 is provided with multiple spaced leakage holes 34.

[0028] Specifically, the solute chamber 2 includes a connector 25 that connects it to the external thread of the bottle mouth 11; the connector 25 is provided with an anti-detachment ring 26; the bottle mouth 11 is provided with a locking ring 12 located at the lower part of its external thread; the top surface of the locking ring 12 is inclined downward along the direction close to the connector 25; after the connector 25 is installed, the anti-detachment ring 26 and the lower wall of the locking ring 12 are fitted together to form a lock.

[0029] Specifically, the pressure relief hole 32 is located at the top of the side wall of the puncture device 3.

[0030] Specifically, the puncture device 3 is provided with an external thread group 35 that matches the internal thread of the inner connecting ring 42; the external thread group 35 consists of multiple sets of spaced thread teeth 351; the gaps between the multiple sets of thread teeth 351 form a channel 36 connecting the pressure relief hole 32 and the pressure relief chamber 43. By setting multiple channels of isolated thread teeth, smooth spiral advance is ensured, thread material is reduced, and a channel connecting the pressure relief chamber is formed, ensuring smooth pressure relief during the installation process.

[0031] Specifically, the top cover 4 is provided with a second sealing ring 44 that extends into the inner cavity of the solute chamber 2 and cooperates with its inlet to seal it.

[0032] Furthermore, the internal threads of the outer connecting ring 41 and the inner connecting ring 42 are arranged in the same direction; the pitch of the outer connecting ring 41 is 1 / 2 to 2 / 3 of the pitch of the inner connecting ring 42. The top cover 4 is closed on the solute chamber 2, and the puncture device 3 is located inside the solute chamber 2. The top cover 4 has a double-layer structure, and the helical structures of the internal threads of the outer connecting ring 41 and the inner connecting ring 42 are arranged in the same direction. When the top cover 4 is rotated to disengage from the solute chamber 2, the pitch of the inner connecting ring 42 pushes the puncture device 3 to move downwards with a longer step distance.

[0033] The pressure relief hole 32 can also be set on the side wall of the puncture device 3 between the first sealing ring 31 and the outer connecting ring 41, so that the pressure relief chamber 43 communicates with the inner cavity of the puncture device 3; the pressure relief hole 32 can also be set on the connecting ring 313, so that the pressure relief chamber 43 communicates with the inner cavity of the puncture device 3.

[0034] Working principle: During filling of bottle 1, water or other solutions are first poured into bottle 1. The connector 25 on the solute chamber 2 is then screwed onto the bottle opening 11 through the external thread to seal the opening. When the connector is screwed to the bottom, the inclined top surface of the anti-detachment ring 26 and locking ring 12 enters the lower part, forming a stable seal on the bottle opening 11. Then, honey or other solutes are poured into the solute chamber 2, with the solute level below the overflow port 23. The top cover 4 of the piercing device 3 is screwed on and installed by the internal thread of the external connecting ring 41 engaging with the external thread on the top of the solute chamber 2. The piercing device 3 has a chamfer 331. The guide block 33 and guide strip 24 form a ratchet structure to ensure that the puncture device 3 rotates smoothly during installation and screwing. After the top cover 4 is installed, the second sealing ring 44 is inserted into the inlet of the solute chamber 2 to form a seal. The first sealing ring 31 forms a blockage on the outlet 23 to prevent the solute from entering the bottle 1. During the insertion of the puncture device 3, the first sealing ring 31 forms a seal with the inner wall of the solute chamber 2 to squeeze the solute. Under pressure, some of the solute enters the inner cavity of the puncture device 3. The pressure enters the pressure relief chamber 43 through the pressure relief hole 32 and is discharged from the bottle cap before the top cover 4 is completely sealed to relieve pressure. When the consumer uses the beverage, they screw on the top cap 4, and the guide block 33 and guide strip 24 lock together, guiding only the piercing device 3 to move up and down. When the top cap 4 is screwed on, the piercing device 3 pierces the bottom of the solute chamber 2 downwards, and releases the solute in conjunction with the leakage hole 34 on the side wall of the piercing device 3. The solute quickly enters the bottle body 1 and mixes with the solution. At the same time, the first sealing ring 31 releases the flow port 23. When the consumer drinks down to a small amount of solution, the solution passes through the flow port 23 and the bottle mouth 11 when the bottle is inverted, avoiding the risk of beverage waste caused by the long solute chamber 2.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A new type of ready-to-use screw-on bottle cap, which is installed on the mouth (11) of a bottle body (1), characterized in that: Includes a solute chamber (2) and a puncture device (3) placed inside the solute chamber (2); the side wall of the solute chamber (2) is provided with at least two flow ports (23) connecting its inner cavity to the inner cavity of the bottle body (1); the puncture device (3) is provided with a first sealing ring (31) that can seal the flow ports (23); the puncture device (3) is a hollow cylindrical structure; after the top cover (4) is closed on the bottle body (1), a pressure relief is formed between its outer connecting ring (41) and inner connecting ring (42). The puncture device (3) is provided with a pressure relief hole (32) that connects its inner cavity with the pressure relief cavity (43); the outer connecting ring (41) and the inner connecting ring (42) are both provided with internal threads; the top end of the puncture device (3) and the top end of the solute chamber (2) are both provided with external threads; the external thread at the top end of the puncture device (3) is engaged with the internal thread of the inner connecting ring (42), and the external thread at the top end of the solute chamber (2) is engaged with the internal thread of the outer connecting ring (41).

2. The new ready-to-use screw-on bottle cap according to claim 1, characterized in that: The solute chamber (2) includes an insertion section (21) that is inserted into the bottle mouth (11) for sealing, and a chamber body section (22) located at the lower part of the insertion section (21); the outer diameter of the chamber body section (22) is smaller than the outer diameter of the insertion section (21); the flow port (23) is located on the side wall at the connection between the chamber body section (22) and the insertion section (21).

3. The new ready-to-fill screw top bottle cap according to claim 1, characterized in that: The first sealing ring (31) includes a ring sleeve (311) surrounding the outer wall of the puncture device (3), a sealing ring (312) sealing the flow port (23), and a connecting ring (313) connecting the sealing ring (312) and the ring sleeve (311).

4. The new ready-to-fill screw top bottle cap according to claim 1, characterized in that: The sealing ring (312) has a concave cross-section with the opening facing the flow port (23).

5. The new ready-to-fill screw top bottle cap according to claim 1, characterized in that: The puncture device (3) has multiple spaced guide blocks (33) on its outer wall; the solute chamber (2) has multiple spaced guide strips (24) on its inner wall; the two corners of the guide block (33) away from the puncture device (3) are chamfered (331) and right angle (332) respectively; the side of the guide block (33) with the right angle (332) is a retaining edge (333); the cross-section of the guide strip (24) is triangular, wherein the right angle side corresponds to the retaining edge (333); the bottom of the puncture device (3) is a pointed tip that can penetrate the bottom of the solute chamber (2); the lower part of the side wall of the puncture device (3) has multiple spaced leakage holes (34).

6. The new ready-to-fill screw top bottle cap, according to claim 1, characterized by: The solute container (2) includes a connector (25) that connects it to the external thread of the bottle mouth (11); the connector (25) is provided with an anti-detachment ring (26); the bottle mouth (11) is provided with a locking ring (12) located at the lower part of its external thread; the top surface of the locking ring (12) is inclined downward along the direction close to the connector (25); after the connector (25) is installed, the anti-detachment ring (26) fits against the lower wall of the locking ring (12) to form a lock.

7. The new ready-to-fill screw top bottle cap according to claim 1, characterized in that: The pressure relief hole (32) is located on the top of the side wall of the puncture device (3).

8. The new ready-to-use screw top bottle cap according to claim 7, characterized in that: The puncture device (3) is provided with an external thread group (35) that matches the internal thread of the inner connecting ring (42); the external thread group (35) consists of multiple sets of spaced thread teeth (351); the gaps between the multiple sets of thread teeth (351) form a channel (36) connecting the pressure relief hole (32) and the pressure relief cavity (43).

9. The new ready-to-fill screw top bottle cap according to claim 1, characterized in that: The top cover (4) is provided with a second sealing ring (44) that extends into the inner cavity of the solute chamber (2) and cooperates with its inlet to seal it.

10. The new ready-to-fill screw top bottle cap according to claim 1, characterized in that: The internal threads of the outer connecting ring (41) and the inner connecting ring (42) are arranged in the same direction; the pitch of the outer connecting ring (41) is 1 / 2 to 2 / 3 of the pitch of the inner connecting ring (42).