Twist-activated downward-piercing type solid–liquid separation bottle cap having ingredient container integrally formed with sealing bottom
By integrating the hopper and sealing bottom into a single unit and employing ultrasonic welding technology, the leakage problem caused by thermal shrinkage in twist-type solid-liquid separation bottle caps has been solved, achieving high sealing performance and stability, and improving the user experience.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- YUNNAN CHANONG BIOLOGICAL IND
- Filing Date
- 2025-02-27
- Publication Date
- 2026-07-23
AI Technical Summary
Existing twist-type solid-liquid separation bottle caps are prone to leakage at high or low temperatures due to the different thermal shrinkage ratios of the plastic parts and aluminum foil, which affects the sealing performance and the safety of the materials.
The design incorporates an integrated hopper and sealed bottom, combined with ultrasonic welding technology to ensure airtightness, and uses a conical piercing element to achieve solid-liquid separation.
It improves the sealing and structural strength of the bottle cap, prevents leakage, ensures the purity and safety of materials, and is easy to operate, providing a superior user experience.
Smart Images

Figure CN2025079432_23072026_PF_FP_ABST
Abstract
Description
A kind of silo and sealing bottom integrated molding twist under top open type solid-liquid separation bottle cap TECHNICAL FIELD
[0001] The utility model relates to bottle cap technical field, specifically, relate to a kind of silo and sealing bottom integrated molding twist under top open type solid-liquid separation bottle cap. BACKGROUND
[0002] In bottle cap technical field, solid-liquid separation bottle cap is widely used in packaging solid beverage or concentrated liquid beverage.This kind of bottle cap is usually combined with bottled water, and can also be packaged and sold alone.When using, by twist or press bottle cap, the top-piercing piece in cover breaks the lower cover sealing bottom, so that the solid beverage in bottle cap is dissolved with water in bottle, to be drunk by drinker.
[0003] However, the existing twist type solid-liquid separation bottle cap has some drawbacks.A major problem is that silo sealing base and cover body are not injection molded at one time.This design needs to be heat sealed with aluminum foil after filling.But due to the different cold and hot shrinkage ratio of plastic parts and aluminum foil, when affected by high temperature or low temperature, thermal expansion and cold shrinkage easily occur, resulting in leakage phenomenon.This not only affects the sealing of product, but also may cause the material in bottle cap to be damp and deteriorate, thereby bringing great food safety risk.
[0004] UTILITY MODEL CONTENTS
[0005] The utility model aims at providing a kind of silo and sealing bottom integrated molding twist under top open type solid-liquid separation bottle cap to solve the problem of leakage phenomenon caused by the different cold and hot shrinkage ratio of plastic parts and aluminum foil when affected by high temperature or low temperature in the above background technique.
[0006] To achieve the above-mentioned purpose, the utility model provides a kind of silo and sealing bottom integrated molding twist under top open type solid-liquid separation bottle cap, including main cover, the inside below of main cover is provided with piercing bottom, the inside upper portion of main cover is provided with sealed silo, the top of main cover is installed with upper cover, the bottom of sealed silo is provided with sealing bottom, the bottom of piercing bottom is provided with piercing bottom base, the middle portion of piercing bottom base is integrally formed and installed with conical piercing piece.
[0007] As preferred, the inside of upper cover is provided with ultrasonic welding site, the top silo mouth of sealed silo is sealed with ultrasonic welding glue by ultrasonic welding site, the upper portion of upper cover is installed with upper cover inner seal near main cover inner wall, the inner wall of upper cover is provided with inner screw thread, the outside of the top of main cover is provided with main cover thread, the inner screw thread is connected and matched with main cover thread.
[0008] As preferred, the lower outer side of the sealed bin is provided with bin outer screw threads, the inner wall of the piercing bottom is provided with piercing bottom inner screw threads, and the bin outer screw threads are connected and matched with the piercing bottom inner screw threads.
[0009] As preferred, the sealed bottom is integrally formed with the bottom of the sealed bin, the sealed bottom is a conical structure recessed towards the inside of the sealed bin, the middle part of the sealed bottom is provided with a plurality of disconnection lines, and the number of the disconnection lines is 2-6.
[0010] As preferred, the top outer side of the main cover is provided with a positioning ring, the positioning ring is matched and positioned with the bottom opening of the upper cover, the middle outer side of the main cover is provided with a bottle mouth sealing ring, the inner wall of the bottle mouth sealing ring is provided with main cover inner screw threads, and the main cover inner screw threads are connected and matched with the bottle mouth.
[0011] As preferred, the inner wall of the bottle mouth sealing ring is provided with a main cover outer seal, the outer wall of the main cover is provided with a main cover inner seal near the bottle mouth sealing ring, the bottom of the bottle mouth sealing ring is provided with a theft-proof ring, the theft-proof ring is clamped in the annular clamping groove on the outer side of the bottle mouth, and the connection part of the theft-proof ring and the bottle mouth sealing ring is provided as a disconnection line.
[0012] As preferred, the bottom of the main cover is provided with a main cover base, the main cover base supports and positions the bottom of the piercing bottom, the bottom outer side of the piercing bottom is provided with a piercing bottom positioning groove, the inner wall of the main cover base is provided with a positioning block, and the piercing bottom positioning groove is clamped and matched with the positioning block.
[0013] As preferred, the piercing bottom base is an annular structure, and the inner wall of the piercing bottom base is connected and fixed with the conical piercing part through a plurality of connecting pieces.
[0014] Compared with the prior art, the utility model has the advantages of:
[0015] In the solid-liquid separation bottle cap with a sealed bin and a sealed bottom integrally formed and twisted and opened, the sealed bin and the sealed bottom are integrally injection molded, so that the leakage problem caused by the different cold and hot shrinkage ratios of the plastic part and the aluminum foil in the traditional design is eliminated. The upper cover and the sealed bin are firmly connected through ultrasonic welding technology, the sealing performance of the welding position is very strong, the sealing environment in the bottle cap is ensured, and the material is effectively prevented from being damp and deteriorated. When the bottle cap is twisted clockwise, the conical piercing part on the piercing bottom can easily break the sealed bottom, solid-liquid separation is realized, and the operation is simple and fast. The integrally formed design and the precise structure cooperation make the resistance small during the twisting process, and the user experience is better.
[0016] The bottle cap is tightly matched through screw thread, clamping and other connecting modes between each part, which ensures the stability and reliability of the overall structure. The support positioning design between the piercing bottom base and the main cap base, and the clamping cooperation of the piercing bottom positioning groove and the positioning block further enhance the structural strength of the bottle cap. The integrated injection molding and ultrasonic welding technology avoids harmful substances that may be generated in the traditional heat sealing process, ensuring the safety and health of the product. The improvement of the sealing performance effectively prevents the invasion of external pollutants, ensuring the purity of the material. BRIEF DESCRIPTION OF DRAWINGS
[0017] Fig. 1 is a schematic diagram of the overall structure of the present application;
[0018] Fig. 2 is a schematic diagram of the structure of the upper cap in the present application;
[0019] Fig. 3 is a schematic diagram of the structure of the sealing hopper in the present application;
[0020] Fig. 4 is a schematic diagram of the structure of the piercing bottom in the present application;
[0021] Fig. 5 is a schematic diagram of the structure of the main cap in the present application;
[0022] Fig. 6 is a schematic diagram of the structure of the piercing bottom base in the present application;
[0023] The meanings of the various reference numbers in the figures are as follows: 1, upper cap; 11, upper cap inner seal; 12, inner clamping screw thread; 13, ultrasonic welding position; 2, sealing hopper; 21, hopper outer screw thread; 22, sealing bottom; 221, disconnection line; 3, piercing bottom; 31, piercing bottom base; 311, connecting piece; 32, piercing bottom inner screw thread; 33, piercing bottom positioning groove; 34, conical piercing piece; 4, main cap; 41, main cap outer seal; 42, main cap inner seal; 43, bottle mouth sealing ring; 431, anti-theft ring; 44, main cap base; 441, positioning block; 45, main cap clamping tooth; 46, positioning ring; 47, main cap inner screw thread. DETAILED DESCRIPTION
[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0025] The utility model provides a kind of silo and sealing bottom integrated molding rotary twist under top opening type solid-liquid separation bottle cap, as shown in Figure 1-6, including main cover 4, the inside below of main cover 4 is provided with puncture bottom 3, the inside top of main cover 4 is provided with sealed silo 2, the top of main cover 4 is installed with upper cover 1, the bottom of sealed silo 2 is provided with sealing bottom 22, the bottom of puncture bottom 3 is provided with puncture bottom base 31, and conical puncture piece 34 is integrally formed and installed in the middle of puncture bottom base 31.The puncture bottom 3 of the inside below of main cover 4 is matched with the sealed silo 2 of the top, and the main structure of solid-liquid separation is formed.The sealing bottom 22 of the bottom of sealed silo 2 ensures the sealing property of material in storage process, effectively prevents the leakage and deterioration of material.And the puncture bottom base 31 of the bottom of puncture bottom 3 and the conical puncture piece 34 integrally formed in the middle realize that sealing bottom 22 can be easily broken when rotary twist bottle cap, complete solid-liquid separation operation.This integrated design not only improves the structural strength of bottle cap, but also simplifies production process, so that bottle cap is more durable and easy to use.
[0026] In the embodiment, the inside of upper cover 1 is provided with ultrasonic welding site 13, the top silo mouth of sealed silo 2 is sealed by ultrasonic welding glue with ultrasonic welding site 13, realizes the firm connection and sealing property between upper cover and sealed silo.This welding mode not only improves the sealing performance of bottle cap, but also simplifies production process, enhances the overall structural strength of bottle cap, and the upper part of upper cover 1 is installed with upper cover inner seal 11 near the inner wall of main cover 4, the inner wall of upper cover 1 is provided with inner thread 12, the top outside of main cover 4 is provided with main cover thread 45, and inner thread 12 is connected with main cover thread 45.This thread connection mode makes upper cover 1 be able to be fixed on main cover 4 tightly, enhances the stability and durability of bottle cap.
[0027] Specifically, the outside of lower part of sealed silo 2 is provided with silo outer thread 21, the inner wall of puncture bottom 3 is provided with puncture bottom inner thread 32, and silo outer thread 21 is connected with puncture bottom inner thread 32.This thread design makes sealed silo 2 be able to be firmly installed on puncture bottom 3, guarantees the reliability and stability of solid-liquid separation mechanism.
[0028] Further, sealing bottom 22 and the bottom of sealed silo 2 are integrally formed, sealing bottom 22 is conical and recessed structure to the inside of sealed silo 2, and the middle of sealing bottom 22 is provided with a plurality of broken lines 221, and the number of broken lines 221 is 2-6.This design makes sealing bottom 22 be able to evenly crack along broken line 221 when receiving puncture force, realizes solid-liquid separation, guarantees controllability of cracking and integrity of sealing bottom.
[0029] Further, the top outer side of the main cover 4 is provided with a positioning ring 46, which is positioned in cooperation with the bottom opening of the upper cover 1, and the middle outer side of the main cover 4 is provided with a bottle mouth sealing ring 43, the inner wall of which is provided with a main cover internal thread 47, which is connected and matched with the bottle mouth. This design enables the main cover 4 to be accurately positioned on the bottle mouth, and realizes the tight sealing with the bottle mouth through the sealing ring 43, thereby enhancing the sealing performance and stability of the bottle cap.
[0030] Further, the inner wall of the bottle mouth sealing ring 43 is provided with a main cover outer seal 41, the outer wall of the main cover 4 is provided with a main cover inner seal 42 near the bottle mouth sealing ring 43, the bottom of the bottle mouth sealing ring 43 is provided with a theft-proof ring 431, which is clamped in the annular clamping groove on the outer side of the bottle mouth, and the connection between the theft-proof ring 431 and the bottle mouth sealing ring 43 is provided as a fracture line. This design not only enhances the sealing performance of the bottle cap, but also realizes the anti-theft function. Once the bottle cap is opened, the theft-proof ring will be broken and cannot be restored, effectively preventing the product from being stolen.
[0031] Further, the bottom of the main cover 4 is provided with a main cover base 44, which supports and positions the bottom of the piercing bottom 3, the bottom outer side of the piercing bottom 3 is provided with a piercing bottom positioning groove 33, and the inner wall of the main cover base 44 is provided with a positioning block 441, which is clamped and matched with the piercing bottom positioning groove 33. This design enables the piercing bottom 3 to be firmly fixed on the main cover base 44, thereby ensuring the stability and reliability of the solid-liquid separation mechanism.
[0032] Further, the piercing bottom base 31 is in a ring shape, and the inner wall of the piercing bottom base 31 is connected and fixed with the conical piercing part 34 through a plurality of connecting pieces 311. This design enables the conical piercing part 34 to be firmly installed on the piercing bottom base 31, thereby ensuring the transmission of the piercing force and the realization of solid-liquid separation. At the same time, the design of the connecting pieces 311 also enhances the structural strength of the piercing bottom base 31.
[0033] In use, the material bin and the sealing bottom of the utility model are integrally formed, and the upper cover 1 and the sealing material bin 2 are ultrasonically welded through the ultrasonic welding position 13, so that the upper cover and the sealing material bin are firmly connected as a whole to form a sealing structure. This step ensures that the material in the material bin will not leak or deteriorate during storage and transportation. The bottom of the sealing material bin 2 is provided with a sealing bottom 22, which is integrally injection molded with the sealing material bin, thereby ensuring the reliability of the sealing performance.
[0034] The assembled upper cover 1 and the sealing bin 2 are connected with the main cover 12 on the top of the outer side of the main cover 45 by the inner buckle screw 12, and are fixed on the upper cover 4. The top of the outer side of the main cover 4 is provided with a positioning ring 46, which is used for cooperating with the bottom opening of the upper cover 1 to position, so that the assembled bottle cap can be accurately installed on the bottle mouth. The lower outer side of the sealing bin 2 is provided with a bin outer screw 21, which is connected with the inner screw 32 in the inner wall of the piercing bottom 3, so as to firmly install the sealing bin 2 on the piercing bottom 3. The bottom of the piercing bottom 3 is provided with a piercing bottom positioning groove 33, which is connected with the positioning block 441 at the bottom of the main cover 4, so as to ensure that the piercing bottom 3 does not rotate and move with the sealing bin 2 during the screwing process.
[0035] When the user rotates the bottle cap clockwise, the upper cover 1 and the sealing bin 2 rotate downward as a whole. Since the piercing bottom 3 is fixed by the positioning block 441 of the main cover 4, it will not rotate. When the screwing reaches the bottom of the screw thread stroke, the conical piercing part 34 in the middle of the piercing bottom 3 will break the sealing bottom 22, realizing the solid-liquid separation. The sealing bottom 22 is uniformly cracked along the preset breaking line 221, and the solid beverage in the bin falls into the water bottle and dissolves with water. The user can continue to unscrew the bottle cap counterclockwise, and since the bottle cap has realized solid-liquid separation, the water in the bottle can be drunk at this time. The bottle mouth sealing ring 43 and the inner and outer seals 41 and 42 of the main cover ensure the sealing performance of the bottle cap, preventing external pollution sources from entering the water bottle. The anti-theft ring 431 plays an anti-theft role after the bottle cap is screwed with the water bottle. If the anti-theft ring is broken, it is considered that the bottle of water has been opened and used.
[0036] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only preferred examples of the present application, and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.
Claims
1. A rotary top-opening solid-liquid separation bottle cap with an integrally formed hopper and sealing bottom, comprising a main cap (4), characterized in that: The main cover (4) has a piercing bottom (3) at the bottom inside, a sealing hopper (2) is provided at the top inside, a top cover (1) is installed on the top of the main cover (4), a sealing bottom (22) is provided at the bottom of the sealing hopper (2), a piercing bottom base (31) is provided at the bottom of the piercing bottom (3), and a conical piercing part (34) is integrally formed and installed in the middle of the piercing bottom base (31).
2. The integrally formed, knob-operated, top-opening solid-liquid separation bottle cap with a hopper and sealing bottom as described in claim 1, characterized in that: The upper cover (1) is provided with an ultrasonic welding position (13) inside. The top hopper opening of the sealed hopper (2) is sealed with the ultrasonic welding position (13) by ultrasonic welding molten adhesive. The upper part of the upper cover (1) is installed with an inner cover seal (11) near the inner wall of the main cover (4). The inner wall of the upper cover (1) is provided with an inner thread (12). The outer side of the top of the main cover (4) is provided with a main cover thread (45). The inner thread (12) is connected and engaged with the main cover thread (45).
3. The integrally formed, knob-operated, top-opening solid-liquid separation bottle cap with a hopper and sealing bottom as described in claim 1, characterized in that: The lower outer side of the sealed hopper (2) is provided with an external thread (21), and the inner wall of the pierced bottom (3) is provided with an internal thread (32). The external thread (21) of the hopper and the internal thread (32) of the pierced bottom are connected and engaged.
4. The integrally formed, knob-operated, top-opening solid-liquid separation bottle cap with a hopper and sealing bottom as described in claim 2, characterized in that: The sealing bottom (22) is integrally formed with the bottom of the sealing hopper (2). The sealing bottom (22) is a conical structure that is recessed into the sealing hopper (2). A number of disconnected lines (221) are provided in the middle of the sealing bottom (22), and the number of disconnected lines (221) is 2-6.
5. The integrally formed, knob-operated, top-opening solid-liquid separation bottle cap with a hopper and sealing bottom as described in claim 1, characterized in that: A positioning ring (46) is provided on the top outer side of the main cover (4). The positioning ring (46) is positioned in conjunction with the bottom opening of the upper cover (1). A bottle mouth sealing ring (43) is installed on the middle outer side of the main cover (4). The inner wall of the bottle mouth sealing ring (43) is provided with the main cover internal thread (47). The main cover internal thread (47) is connected and engaged with the bottle mouth.
6. The integrally formed, knob-operated, top-opening solid-liquid separation bottle cap with a hopper and sealing bottom as described in claim 5, characterized in that: The upper part of the inner wall of the bottle mouth sealing ring (43) is equipped with a main cap outer seal (41), and the outer wall of the main cap (4) is equipped with a main cap inner seal (42) near the bottle mouth sealing ring (43). An anti-theft ring (431) is installed at the bottom of the bottle mouth sealing ring (43). The anti-theft ring (431) is stuck in the annular groove on the outside of the bottle mouth. The connection between the anti-theft ring (431) and the bottle mouth sealing ring (43) is set as a break line.
7. The integrally formed, knob-operated, top-opening solid-liquid separation bottle cap with a hopper and sealing bottom as described in claim 6, characterized in that: The bottom of the main cover (4) is equipped with a main cover base (44), which supports and positions the bottom of the piercing bottom (3). The bottom outer side of the piercing bottom (3) is provided with a piercing bottom positioning groove (33), and a positioning block (441) is installed on the inner wall of the main cover base (44). The piercing bottom positioning groove (33) and the positioning block (441) are engaged.
8. The integrally formed, knob-operated, top-opening solid-liquid separation bottle cap with a hopper and sealing bottom as described in claim 1, characterized in that: The piercing base (31) is a ring structure, and the inner wall of the piercing base (31) is connected and fixed to the conical piercing member (34) by a number of connectors (311).