A bottle cap for a screw-puncture type ready-to-use container

Abstract

The utility model relates to bottle cap technical field, especially is involved in a kind of bottle cap for spiral puncture formula immediate type container, including material cylinder, upper cover and lower cover, material cylinder is the tubular structure with opening in top, material cylinder inside is equipped with the storage bin for storing main material, the bottom of storage bin is inclined bottom structure and is equipped with puncture part, and sealing membrane for sealing storage bin is set on puncture part;Upper cover is connected in the opening place of material cylinder top, and upper cover is connected by internal thread and the external thread cooperation of material cylinder top opening outer wall, realizes screw thread connection;Lower cover is sleeved in the outside of material cylinder, and the position of the inner chamber bottom of lower cover corresponds puncture part and is equipped with puncture block, and one end of puncture block is in abutment with the bottom of material cylinder;Lower cover bottom end is encircled in the periphery of puncture block and is equipped with blanking hole.The utility model breaks through and tears open sealing membrane quickly and completely by puncture block, further guarantees the smoothness of discharging, improves discharging efficiency, ensures that main material and liquid are fully mixed, and improves beverage taste.

Description

Technical Field

[0001] This utility model relates to the field of bottle cap technology, and in particular to a spiral puncture type ready-to-use bottle cap. Background Technology

[0002] Ready-to-drink beverages are a newly emerging sub-category in the beverage industry in recent years. Their core characteristic is the ability to quickly prepare a drinkable beverage using pre-packaged concentrated ingredients or combinations of ingredients through simple operations (such as adding water, milk, stirring, or mixing) in the consumer setting. Compared to traditional ready-to-drink beverages, they emphasize the flexibility of "on-site preparation," meeting personalized needs while reducing transportation and storage costs, making them a significant growth driver under the trend of health-conscious and convenient consumption.

[0003] Existing ready-to-use container caps aim to solve the problem of spoilage caused by long-term mixing of the main ingredient and liquid in beverages. By isolating and preserving the main ingredient and liquid, they enable on-demand preparation. For example, patent CN111703735A discloses a rotary dispensing ready-to-use container cap, including an upper cap, a hopper, a lower cap, and a sealing gasket. The hopper includes a first connecting part and an inner tube. One end of the inner tube is sealed by the sealing gasket, and the other end is open. A first through hole is provided on the side wall. The first connecting part is annular and fits onto the open end of the inner tube, detachably connecting to the upper cap. The lower cap includes a second connecting part and an outer tube. The outer tube is open at both ends, and its inner wall fits against the outer wall of the inner tube, fitting onto the inner tube. A second through hole is provided on the side wall of the outer tube at a height corresponding to the first through hole. The tight fit between the inner and outer tubes creates a sealing surface for the main material and a sealing surface for the contents of the bottle when sealing is required, thus enhancing the sealing effect. When opening is needed, it can be done with a simple rotation. The structure is simple and easy to use.

[0004] However, although the cap can seal and isolate the liquid and the main ingredient, in actual use, the inner tube needs to rotate relative to the outer tube, which means there is a gap in the assembly between the inner and outer tubes. Since the main ingredient inside is mostly in powder form, some of the main ingredient can easily enter the gap, making the rotating feeding operation more laborious and the feeding not smooth. At the same time, the first and second through holes are located on the side walls of the inner and outer tubes respectively, and the main ingredient is prone to stagnation during the feeding process, resulting in low feeding efficiency and insufficient mixing. Utility Model Content

[0005] In order to address the technical deficiencies mentioned in the background art, the purpose of this utility model is to provide a spiral piercing type bottle cap for ready-to-use containers, which aims to solve the problems of material retention, difficult and uneven feeding, and insufficient mixing caused by assembly gaps in the prior art. The overall operation is simple and convenient, improving the user experience and meeting the personalized and convenient consumption needs of ready-to-use beverages.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A spiral-piercing instant container cap, comprising

[0008] The material cylinder is a cylindrical structure with an opening at the top. Inside the material cylinder is a storage bin for storing the main material. The bottom of the storage bin is a sloping bottom structure with a piercing part. A sealing membrane for sealing the storage bin is provided on the piercing part.

[0009] The top cover is connected to the opening at the top of the barrel. The top cover is threadedly connected to the external thread on the outer wall of the opening at the top of the barrel through an internal thread. The inner side of the top cover is provided with a first cylindrical sealing ring, which fits tightly against the outer side of the opening at the top of the barrel.

[0010] The lower cover is fitted onto the outside of the material cylinder. A piercing block is provided at the bottom of the inner cavity of the lower cover at the position corresponding to the piercing part. The piercing block is used to puncture and tear the sealing film when the material cylinder rotates. One end of the piercing block abuts against the bottom of the material cylinder. A material discharge hole is provided around the bottom of the lower cover around the piercing block. The material discharge hole is used to allow the main material flowing out through the piercing part to enter the container.

[0011] Preferably, the lower cover includes a connecting part, an outer cover part, and a sleeve part arranged sequentially from top to bottom. The connecting part, the outer cover part, and the sleeve part are integrally formed, and the inner wall of the connecting part is provided with a spiral track that connects with the material cylinder. The inner diameter of the outer cover part is the same as that of the connecting part, and the inner wall of the outer cover part is provided with an internal thread that connects with the threaded opening of the container. One end of the sleeve part extends to the inner side of the outer cover part, and a second cylindrical sealing ring is provided at the connection between the sleeve part and the outer cover part. The second cylindrical sealing ring fits tightly with the top of the container opening, enhancing the sealing between the lower cover and the container.

[0012] Preferably, the starting end of the spiral track has a trumpet-shaped structure, and the starting end of the spiral track extends axially beyond the top of the connecting part; the ending end of the spiral track extends circumferentially along the inner wall of the sleeve part, and the height difference between the starting end and the ending end of the spiral track is adapted to the tearing stroke of the sealing film; the trumpet-shaped starting end design facilitates the smooth entry of the limiting protrusion on the material cylinder into the spiral track, reduces the assembly difficulty, and ensures that the sealing film can be completely torn open when the material cylinder rotates to the end of the stroke.

[0013] Preferably, the outer surface of the material cylinder is provided with limiting protrusions adapted to the spiral track. There are at least two limiting protrusions symmetrically distributed on the outer wall of the material cylinder. The limiting protrusions are respectively engaged in the spiral track and slide along it. The symmetrically distributed limiting protrusions make the force more uniform when the material cylinder rotates along the spiral track, and the rotation process is more stable.

[0014] Preferably, the puncture portion is crescent-shaped, the shape of the sealing film is adapted to the puncture portion, and the edge of the sealing film is sealed and adhered to the edge of the puncture portion; the crescent-shaped puncture portion can be adapted to the sloping bottom structure, and the sealing film ensures the airtightness of the storage bin, preventing the main material from getting damp or leaking.

[0015] Preferably, a connecting rib is provided between one end of the sealing membrane and the bottom wall of the barrel. The two ends of the connecting rib are respectively connected to the barrel and the sealing membrane, and the connecting rib is made of high-strength plastic material. After the sealing membrane is punctured and falls off, the connecting rib can effectively prevent the sealing membrane from falling off and entering the container, causing pollution.

[0016] Preferably, the puncture block is a triangular prism-shaped protrusion with its tip facing the center of the sealing membrane. The triangular prism-shaped structure makes the force more concentrated when the puncture block breaks through the sealing membrane, which facilitates rapid puncture of the sealing membrane. With the tip facing the center of the sealing membrane, the sealing membrane can be torn open from the center more efficiently, ensuring thorough tearing.

[0017] Preferably, the discharge holes are fan-shaped and distributed in a circular array along the bottom of the sleeve. The fan-shaped structure increases the effective area for material discharge, while the circular array distribution allows the main material to flow out more evenly from all directions, further improving the material discharge efficiency and the thoroughness of mixing.

[0018] Preferably, the outer surface of the material cylinder is provided with snap-fit ​​protrusions near both ends, the snap-fit ​​protrusions are respectively fitted to the upper cover and the lower cover, and an annular sealing ring is provided between the snap-fit ​​protrusions; effectively preventing the main material from entering the gap between the material cylinder and the lower cover, ensuring smooth rotation and feeding.

[0019] Preferably, a side sealing ring is arranged around the inner side wall of the top cover, and a fitting block adapted to the side sealing ring is provided on the side wall of the material cylinder near the top opening. The side sealing ring and the fitting block are connected in cooperation. The connection between the material cylinder and the top cover is sealed from the side, forming a multi-seal structure and enhancing the overall sealing performance.

[0020] In summary, the beneficial effects of this utility model are as follows:

[0021] 1. The spiral piercing instant container cap of this utility model solves the defects of the prior art, such as the retention of main material, difficult and uneven feeding, and insufficient mixing, caused by assembly gaps, through the ingenious cooperation of the material cylinder, upper cap, and lower cap. On the one hand, the sealing film set by the piercing part at the bottom of the material cylinder achieves effective sealing and isolation of the main material, which greatly avoids leakage or moisture of the main material, and at the same time prevents the main material from entering the gap between the material cylinder and the lower cap, affecting its rotating feeding operation. On the other hand, the piercing block can quickly and thoroughly pierce and tear open the sealing film, further ensuring the smoothness of feeding, improving feeding efficiency, ensuring that the main material and liquid are fully mixed, and improving the taste of the beverage.

[0022] 2. This utility model features a sloping bottom structure at the bottom of the material storage bin, allowing the main material to gather more smoothly towards the piercing part under its own gravity. When the sealing film is torn open, the main material can quickly flow out through the piercing part and the discharge hole, avoiding stagnation. At the same time, the discharge hole is set around the bottom of the lower cover around the piercing block, which not only increases the discharge area but also improves the discharge efficiency, thereby ensuring that the main material and liquid are fully mixed. The overall operation is simple and convenient, improving the user experience and meeting the personalized and convenient consumption needs of ready-to-drink beverages. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the spiral piercing instant container cap of this utility model;

[0024] Figure 2 This is an exploded view of the spiral piercing instant container cap of this utility model;

[0025] Figure 3 This is a three-dimensional sectional view of the bottle cap for the spiral piercing instant container of this utility model;

[0026] Figure 4 This is a schematic diagram of the material cylinder in this utility model;

[0027] Figure 5 This is a top view of the material cylinder in this utility model;

[0028] Figure 6 This is a schematic diagram of the structure of the upper cover in this utility model;

[0029] Figure 7 This is a schematic diagram of the structure of the lower cover in this utility model;

[0030] Figure 8 This is a half-sectional view of the bottle cap for the spiral piercing instant container of this utility model;

[0031] Figure 9 yes Figure 8 Enlarged view of the structure at point a;

[0032] Figure 10 yes Figure 8 Enlarged view of the structure at point b.

[0033] Explanation of the reference numerals in the figure:

[0034] 1. Material cylinder; 11. Storage bin; 12. Puncture part; 13. Snap-fit ​​boss; 14. Annular sealing ring; 15. Interlocking block; 2. Top cover; 21. First cylindrical sealing ring; 22. Side sealing ring; 23. Marking; 3. Bottom cover; 31. Connecting part; 32. Outer cover part; 33. Sleeve part; 4. Sealing membrane; 41. Connecting rib; 5. Puncture block; 6. Material drop hole; 7. Spiral track; 8. Second cylindrical sealing ring; 9. Limiting protrusion. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0036] Those skilled in the art should understand that, in the disclosure of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.

[0037] In the description of this utility model, the use of terms such as "several" means one or more, with "multiple" meaning two or more. Terms like "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of terms like "first," "second," and "third" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, the quantity of indicated technical features, or the sequential relationship between indicated technical features.

[0038] This utility model discloses a spiral puncture-type bottle cap for ready-to-make containers, mainly used in ready-to-make beverage containers to achieve isolated storage of concentrated raw materials or combined ingredients from the liquid, and to complete mixing and preparation through simple operation during use. The container can adopt any existing or future invention structure, and this utility model is not limited thereto.

[0039] The following is in conjunction with the appendix Figure 1-10The present invention provides a more detailed description of an embodiment of a spiral puncture type ready-to-use container cap.

[0040] A type of spiral-piercing ready-to-use container cap, such as Figure 1 , 2 As shown, it includes a material cylinder 1, an upper cover 2 and a lower cover 3. The material cylinder 1 is a cylindrical structure with an opening at the top. Inside the material cylinder 1, there is a storage bin 11 for storing the main material. The bottom of the storage bin 11 is a sloping bottom structure and is provided with a piercing part 12. A sealing membrane 4 for sealing the storage bin 11 is provided on the piercing part 12.

[0041] Specifically, the sloping bottom structure of the storage bin 11 allows the main material to naturally gather towards the piercing part 12, facilitating its outflow. The piercing part 12 is crescent-shaped, which fits the sloping bottom structure. The shape of the sealing film 4 matches the piercing part 12, and the edge of the sealing film 4 is sealed and adhered to the edge of the piercing part 12. This ensures the airtightness of the storage bin 11 and prevents the main material from getting damp or leaking.

[0042] To prevent the sealing membrane 4 from falling into the container after being punctured by the puncture block 5, the sealing membrane 4 of this invention is further provided with a connecting rib 41 at the smaller crescent-shaped end, such as... Figure 5 As shown, the two ends of the connecting rib 41 are connected to the material cylinder 1 and the sealing membrane 4, respectively. The connecting rib 4 is made of high-strength plastic material, so that even if the sealing membrane 4 is punctured, it will still maintain a connection with the material cylinder 1 under the action of the connecting rib 41, thus avoiding the problem of it falling into the container and causing pollution after it completely falls off.

[0043] In this embodiment, as Figure 2 , 3 As shown, the upper cover 2 is connected to the opening at the top of the material cylinder 1. The upper cover 2 is threadedly connected to the outer thread of the opening at the top of the material cylinder 1 through the internal thread. The upper cover 2 is provided with a first cylindrical sealing ring 21 on the inner side, and the first cylindrical sealing ring 21 is tightly fitted to the outer side of the opening at the top of the material cylinder 1.

[0044] Specifically, the threaded connection between the top cover 2 and the material cylinder 1 not only facilitates the disassembly and assembly of the top cover 2, but also creates a good sealing effect after connection; at the same time, the first cylindrical sealing ring 21 on the inner side of the top cover 2 cooperates with the material cylinder 1 to further improve the sealing between the top cover 2 and the material cylinder 1, preventing the main material from leaking from the top.

[0045] In this embodiment, as Figure 2 , 3As shown, the lower cover 3 is sleeved on the outside of the material cylinder 1. The bottom of the inner cavity of the lower cover 3 is provided with a piercing block 5 corresponding to the position of the piercing part 12. The piercing block 5 is used to pierce and tear the sealing film 4 when the material cylinder 1 rotates. One end of the piercing block 5 abuts against the bottom of the material cylinder 1. The bottom end of the lower cover 3 is provided with a material discharge hole 6 around the piercing block 5. The material discharge hole 6 is used to allow the main material flowing out through the piercing part 12 to enter the container.

[0046] Specifically, the piercing block 5 has a triangular prism-shaped protrusion, with its tip pointing towards the center of the sealing film 4. This triangular prism shape concentrates the force when the piercing block 5 breaks through the sealing film 4, facilitating rapid piercing. The tip pointing towards the center of the sealing film 4 allows for more efficient tearing from the center, ensuring thorough tearing and improving dispensing efficiency. This ensures the main ingredient and liquid are fully mixed, enhancing the beverage's taste. Simultaneously, the dispensing hole 6 is located around the bottom of the lower cover 3, surrounding the piercing block 5. This not only increases the dispensing area but also improves dispensing efficiency, ensuring thorough mixing of the main ingredient and liquid. The overall operation is simple and convenient, enhancing the user experience and meeting the personalized and convenient consumption needs of ready-to-drink beverages.

[0047] In this embodiment, as Figure 4 As shown, the outer surface of the material cylinder 1 is provided with snap-fit ​​protrusions 13 near both ends. The snap-fit ​​protrusions 13 are respectively attached to the upper cover 2 and the lower cover 3, and an annular sealing ring 14 is provided between the snap-fit ​​protrusions 13. The lower cover 3 and the material cylinder 1 are blocked by the annular sealing ring 14, which reduces the possibility of the main material entering the gap between the two, thereby effectively preventing the main material from entering the gap between the material cylinder 1 and the lower cover 3, and ensuring the smoothness of rotating material feeding.

[0048] In this embodiment, as Figure 6 and Figure 10 As shown, a side sealing ring 22 is arranged around the inner side wall of the upper cover 2, and a fitting block 15 adapted to the side sealing ring 22 is provided on the side wall of the material cylinder 1 near the top opening. The side sealing ring 22 and the fitting block 15 are connected in cooperation; the connection between the material cylinder 1 and the upper cover 2 is sealed from the side, forming a multi-seal structure and enhancing the overall sealing performance.

[0049] In this embodiment, as Figures 7 to 9As shown, the lower cover 3 includes a connecting part 31, an outer cover part 32, and a sleeve part 33 arranged sequentially from top to bottom. The connecting part 31, the outer cover part 32, and the sleeve part 33 are integrally formed, which ensures the structural strength of the lower cover 3 and makes it less prone to deformation or damage during use. The inner wall of the connecting part 31 is provided with a spiral track 7 that connects with the material cylinder 1. The inner diameter of the outer cover part 32 is the same as that of the connecting part 31, and the inner wall of the outer cover part 32 is provided with an internal thread that connects with the threaded connection of the container bottle mouth. The lower cover 3 is securely connected to the container through the threaded connection. One end of the sleeve part 33 extends to the inner side of the outer cover part 32, and a second cylindrical sealing ring 8 is provided at the connection between the sleeve part 33 and the outer cover part 32.

[0050] Specifically, the starting end of the spiral track 7 has a trumpet-shaped structure, and the starting end of the spiral track 7 extends axially beyond the top of the connecting part 31; the ending end of the spiral track 7 extends circumferentially along the inner wall of the sleeve part 33, and the height difference between the starting end and the ending end of the spiral track 7 is adapted to the tearing stroke of the sealing film 4. Due to the certain height difference and extension length of the spiral track 7, the material cylinder 1 will gradually move downward along the spiral track 7 while rotating. As the material cylinder 1 rotates and moves downward, the piercing block 5 at the bottom of the inner cavity of the lower cover 3 gradually approaches and contacts the sealing film 4 on the bottom piercing part 12 of the material cylinder 1 storage bin 11. At the same time, the trumpet-shaped starting end design facilitates the smooth entry of the limiting protrusion 9 on the material cylinder 1 into the spiral track 7, reduces the assembly difficulty, and ensures that the sealing film 4 can be completely torn open when the material cylinder 1 rotates to the end of the stroke. In addition, the lower cover 3 and the container are connected by the internal thread of the outer cover part 32 and the sealing effect of the second cylindrical sealing ring 8, which avoids unnecessary contact between the liquid in the container and the outside world, and the overall sealing performance is reliable.

[0051] In this embodiment, as Figure 9 As shown, the outer side of the material cylinder 1 is provided with limiting protrusions 9 that are adapted to the spiral track 7. There are at least two limiting protrusions 9 and they are symmetrically distributed on the outer wall of the material cylinder 1. The limiting protrusions 9 are respectively locked in the spiral track 7 and slide along it.

[0052] Specifically, the limiting protrusions 9 on the material cylinder 1 are symmetrically distributed, which makes the material cylinder 1 subjected to uniform force during rotation. The cooperation between the spiral track 7 and the limiting protrusions 9 ensures that the rotation stroke of the material cylinder 1 is accurate, so that the piercing block 5 can completely tear the sealing film 4, avoiding material blockage caused by the residue of the sealing film 4. At the same time, it also ensures the stability of the movement of the material cylinder 1, reduces the occurrence of jamming and other situations, and extends the service life of the bottle cap.

[0053] In this embodiment, as Figure 2 As shown, the discharge hole 6 has a fan-shaped structure and is distributed in a circular array along the bottom of the sleeve part 33. The fan-shaped structure increases the effective area of ​​discharge, while the circular array distribution allows the main material to flow out more evenly from all directions, further improving the discharge efficiency and the fullness of mixing.

[0054] It is worth noting that, such as Figure 3 As shown, in order to help users identify the rotation direction of the bottle cap and improve the ease of operation, in this embodiment, the top of the upper cover 2 is also provided with a switch rotation direction indicator 23.

[0055] The working principle of this utility model:

[0056] When not in use, the material cylinder 1 is engaged with the starting end of the spiral track 7 by the limiting protrusion 9. At this time, the sealing film 4 completely seals the puncture part 12 at the bottom of the storage bin 11. The upper cover 2 is threadedly connected to the material cylinder 1. The first cylindrical sealing ring 21, the side sealing ring 22 and other structures work together to ensure the sealing of the storage bin 11. The lower cover 3 is connected to the bottle mouth of the container by the internal thread of the outer cover part 32. The second cylindrical sealing ring 8 ensures the seal between the lower cover 3 and the container. The entire bottle cap completely isolates the main material from the liquid in the container.

[0057] When a beverage needs to be prepared, the user rotates the top cover 2 counterclockwise according to the switch rotation direction indicator 23 on the top of the cover 2. The top cover 2 drives the material cylinder 1 to rotate through the threads, and the limiting protrusion 9 on the material cylinder 1 slides along the spiral track 7 on the inner wall of the connecting part 31 of the bottom cover 3. Due to the certain height difference and extension length of the spiral track 7, the material cylinder 1 will gradually move downward along the spiral track 7 while rotating. As the material cylinder 1 rotates and moves downward, the piercing block 5 at the bottom of the inner cavity of the bottom cover 3 gradually approaches and contacts the sealing film 4 on the bottom piercing part 12 of the material storage bin 11 of the material cylinder 1. Since the piercing block 5 is triangular prism-shaped and the tip faces the center of the sealing film 4, as the material cylinder 1 continues to rotate and move downward, the tip of the piercing block 5 will pierce the central area of ​​the sealing film 4. Then, as the material cylinder 1 rotates further, the piercing block 5 gradually tears the sealing film 4 along the crescent shape of the sealing film 4. When the limiting protrusion 9 on the material cylinder 1 slides to the end of the spiral track 7, the material cylinder 1 stops rotating and moving downward. At this time, the sealing film 4 is completely torn open, and the piercing part 12 at the bottom of the storage bin 11 is completely open. Under its own gravity, the main material in the storage bin 11 gathers from the sloping bottom structure of the storage bin 11 towards the piercing part 12, and then flows out through the piercing part 12 from the fan-shaped discharge hole 6 around the piercing block 5 at the bottom end of the lower cover 3, and enters the container to mix with the liquid, thereby preparing a drinkable beverage.

[0058] It should be noted that the bottle cap of this utility model is suitable for single-use preparation and cannot be reused.

[0059] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A bottle cap for a spiral piercing type ready-to-use container, characterized in that, include The material cylinder is a cylindrical structure with an opening at the top. Inside the material cylinder is a storage bin for storing the main material. The bottom of the storage bin is a sloping bottom structure with a piercing part. A sealing membrane for sealing the storage bin is provided on the piercing part. The top cover is connected to the opening at the top of the barrel. The top cover is threadedly connected to the external thread on the outer wall of the opening at the top of the barrel through an internal thread. The inner side of the top cover is provided with a first cylindrical sealing ring, which fits tightly against the outer side of the opening at the top of the barrel. The lower cover is fitted onto the outside of the material cylinder. A piercing block is provided at the bottom of the inner cavity of the lower cover at the position corresponding to the piercing part. The piercing block is used to puncture and tear the sealing film when the material cylinder rotates. One end of the piercing block abuts against the bottom of the material cylinder. A material discharge hole is provided around the bottom of the lower cover around the piercing block. The material discharge hole is used to allow the main material flowing out through the piercing part to enter the container.

2. The bottle cap for a spiral-piercing instant container according to claim 1, characterized in that, The lower cover includes a connecting part, an outer cover part, and a sleeve part arranged sequentially from top to bottom. The connecting part, the outer cover part, and the sleeve part are integrally formed structures, and the inner wall of the connecting part is provided with a spiral track that mates with the material cylinder. The inner diameter of the outer cover part is the same as that of the connecting part, and the inner wall of the outer cover part is provided with an internal thread that mates with the threaded connection of the container bottle mouth. One end of the sleeve part extends to the inner side of the outer cover part, and a second cylindrical sealing ring is provided at the connection between the sleeve part and the outer cover part.

3. The bottle cap for a spiral-piercing instant-mix container according to claim 2, characterized in that, The starting end of the spiral track has a trumpet-shaped structure and extends axially beyond the top of the connecting part; the ending end of the spiral track extends circumferentially along the inner wall of the sleeve part, and the height difference between the starting end and the ending end of the spiral track is adapted to the tearing stroke of the sealing film.

4. The bottle cap for a spiral-piercing instant container according to claim 2, characterized in that, The outer surface of the material cylinder is provided with limiting protrusions adapted to the spiral track. There are at least two limiting protrusions symmetrically distributed on the outer wall of the material cylinder. The limiting protrusions are respectively engaged in the spiral track and slide along it.

5. The bottle cap for a spiral-piercing instant-mix container according to claim 2, characterized in that, The puncture portion is crescent-shaped, and the shape of the sealing film is adapted to the puncture portion, with the edge of the sealing film sealed and adhered to the edge of the puncture portion.

6. The bottle cap for a spiral-piercing instant container according to claim 1, characterized in that, A connecting rib is provided between one end of the sealing membrane and the bottom wall of the barrel. The two ends of the connecting rib are respectively connected to the barrel and the sealing membrane, and the connecting rib is made of high-strength plastic material.

7. The cap for a spiral-piercing ready-to-use container according to claim 3, characterized in that, The puncture block is a triangular prism-shaped protrusion, with the tip of the puncture block facing the central area of ​​the sealing membrane.

8. The bottle cap for a spiral-piercing ready-to-use container according to claim 1, characterized in that, The discharge holes are fan-shaped and distributed in a circular array along the bottom circumference of the sleeve.

9. The bottle cap for a spiral-piercing instant container according to claim 1, characterized in that, The outer surface of the material cylinder is provided with snap-fit ​​protrusions near both ends. The snap-fit ​​protrusions fit into the upper cover and the lower cover respectively, and an annular sealing ring is provided between the snap-fit ​​protrusions.

10. The bottle cap for a spiral-piercing instant container according to claim 1, characterized in that, A side sealing ring is arranged around the inner side wall of the upper cover, and a fitting block adapted to the side sealing ring is provided on the side wall of the material cylinder near the top opening. The side sealing ring and the fitting block are connected in cooperation.

Images