A storage type bottle cap convenient to use

Abstract

The utility model discloses a kind of storage type bottle caps convenient to use, including the outer cylinder piece for being connected on bottle body and the inner cylinder piece inserted into outer cylinder piece from top to bottom, top cover is connected on the upper end of inner cylinder piece, and its top end is capped, and lower end is open, the bottom of outer cylinder piece is equipped with the cover plate that can cap the lower end of inner cylinder piece, cooperation structure that can push inner cylinder piece up and down when inner cylinder piece rotates is equipped between outer cylinder piece and inner cylinder piece, after inner cylinder piece moves downward, cover plate caps the lower end of inner cylinder piece, so that the inner cavity of inner cylinder piece constitutes a storage cavity for storing auxiliary material, the sidewall of outer cylinder piece is equipped with the discharge port for auxiliary material to flow into bottle body after inner cylinder piece moves upward, top cover is connected on inner cylinder piece by detachable connecting structure, after inner cylinder piece moves upward and top cover is disassembled, liquid in bottle body can flow out via storage cavity for user to drink, the utility model aims at overcoming the deficiency of prior art, and provide a kind of compact compact, convenient to use storage type bottle cap.

Description

Technical Field

[0001] This utility model specifically relates to a convenient storage bottle cap. Background Technology

[0002] With the rapid development of functional beverages, instant drinks, and personalized beverage products, consumers' demands for convenience, freshness, and customization in beverages are increasing. In response, a new type of "storage-type bottle cap" integrating ingredient storage has emerged in recent years. This cap pre-packages solid ingredients such as tea powder, sugar powder, and nutritional additives inside. Before consumption, a specific operation causes the ingredients to fall into the bottle and mix with the liquid, achieving an instant-drink effect. This type of structure has already seen initial applications in dairy products, plant-based protein drinks, and instant tea beverages.

[0003] However, traditional bottle caps with filling mechanisms still present many inconveniences in practical use. A typical structure uses a rotating or pressing method to open the filling chamber, allowing the ingredients to fall into the bottle for mixing. But after adding the ingredients, the user still needs to completely remove the entire cap from the bottle opening before drinking. This process is not only cumbersome and increases the number of steps, but it also easily leads to the cap being lost or contaminated, especially in outdoor or vehicle-mounted scenarios. Furthermore, frequently removing the entire cap also affects the continuity of the drinking experience and the user experience.

[0004] This utility model was developed precisely because of the aforementioned shortcomings. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a compact, easy-to-use storage bottle cap.

[0006] This utility model is achieved through the following technical solution:

[0007] This utility model provides a user-friendly storage bottle cap, comprising an outer cylinder for connecting to a bottle body and an inner cylinder inserted into the outer cylinder from top to bottom. The upper end of the inner cylinder is connected to a top cap that seals its top, while the lower end is open. The bottom of the outer cylinder is provided with a sealing plate that can seal the lower end of the inner cylinder. A cooperating structure is provided between the outer cylinder and the inner cylinder to push the inner cylinder to move up and down when the inner cylinder rotates. When the inner cylinder moves downward, the sealing plate seals the lower end of the inner cylinder, so that the inner cavity of the inner cylinder forms a storage cavity for storing auxiliary materials. The side wall of the outer cylinder is provided with an outlet for the auxiliary materials to flow into the bottle body when the inner cylinder moves upward. The top cap is connected to the inner cylinder through a detachable connection structure. When the inner cylinder moves upward and the top cap is removed, the liquid in the bottle can flow out through the storage cavity for the user to drink.

[0008] As described above, the easy-to-use storage bottle cap includes a detachable connection structure with an internal thread on the inner side wall of the top cap and an external thread on the outer side wall of the inner cylinder. The detachable connection structure also includes a locking ring connected to the lower end of the top cap. The inner cylinder is provided with a snap-fit ​​ring groove, and the locking ring is provided with a snap-fit ​​ring part that snaps into the snap-fit ​​ring groove. The locking ring is connected to the top cap by a tearable strip.

[0009] As described above, the easy-to-use storage bottle cap has a mating structure including a spiral limiting groove on the inner cylinder and a limiting boss on the inner sidewall of the outer cylinder. The limiting boss is embedded in the limiting groove and slides along its trajectory to convert rotational motion into linear motion.

[0010] As described above, the easy-to-use storage bottle cap includes a starting section, a damping section, and a ending section in the limiting groove from top to bottom. In the initial state, the limiting boss is located in the starting section. The groove sidewall of the damping section is provided with a protruding damping protrusion to increase sliding resistance. The bottom of the ending section is provided with a blocking part to limit the downward stroke of the limiting boss.

[0011] As described above, the easy-to-use storage bottle cap has a limiting boss that is conical or frustoconical, with its small end facing the direction of movement when the inner cylinder moves upward.

[0012] As described above, the easy-to-use storage bottle cap has a first sealing ring on the outer wall of the inner cylinder for abutting against the inner wall of the outer cylinder.

[0013] As described above, the easy-to-use storage bottle cap has a second sealing ring on the inner wall of the outer cylinder for abutting against the outer wall of the inner cylinder.

[0014] As described above, the easy-to-use storage bottle cap has anti-slip ribs on the outer side wall of the top cap.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] 1. It integrates feeding and drinking operations, making it more convenient to use. The auxiliary materials can be automatically fed by rotating the inner cylinder. After feeding, only the top cap needs to be removed to drink. There is no need to remove the entire bottle cap, avoiding the cumbersome steps of traditional storage bottle caps that still need to be completely removed after mixing. This significantly improves the convenience of operation and user experience.

[0017] 2. The structure is reliably sealed, preventing accidental opening and providing operational feedback. It adopts a motion conversion structure that combines a spiral limiting groove with a damping protrusion, along with a conical limiting boss, to ensure smooth lifting and lowering of the inner cylinder. The damping section design provides a clear sense of rotational resistance, which not only prevents accidental opening during transportation but also provides users with tactile feedback on the opening status, enhancing safety and interactivity.

[0018] 3. The dual sealing and modular design ensure stable performance. A first sealing ring and a second sealing ring are set between the outer and inner cylinders to form a dynamic sealing barrier, which effectively prevents liquid leakage or external moisture from entering the storage chamber. The top cover is double-fixed by threads and a tearable locking ring, which takes into account both sealing performance and opening reliability. It is suitable for long-term storage of various solid auxiliary materials and instant drinking scenarios. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the storage bottle cap of this utility model in use;

[0020] Figure 2 This is a cross-sectional schematic diagram of the storage bottle cap of this utility model;

[0021] Figure 3 This is an exploded view of the storage-type bottle cap of this utility model. Figure 1 ;

[0022] Figure 4 This is an exploded view of the storage-type bottle cap of this utility model. Figure 2 ;

[0023] Figure 5 This is a structural schematic diagram of the inner cylinder component of this utility model;

[0024] Figure 6 This is a schematic diagram of the inner cylinder component in Embodiment 2;

[0025] Figure 7 This is a structural schematic diagram of the inner cylinder component in Embodiment 3;

[0026] Figure 8 This is an exploded view of the storage-type bottle cap of Example 4. Detailed Implementation

[0027] The utility model will be further described below with reference to the accompanying drawings:

[0028] The orientations described in this utility model specification, such as "up," "down," "left," "right," "front," and "back," are based on the orientations in the accompanying drawings and are intended to facilitate the description of the relationships between the various components. They do not indicate the unique or absolute positional relationships between the various components, but are merely one embodiment of the utility model and are not a limitation on its implementation.

[0029] This embodiment introduces a user-friendly storage bottle cap, such as... Figure 1 and Figure 2As shown, this bottle cap structure includes an outer cylinder 1 for connection to the bottle body A and an inner cylinder 2 inserted into the outer cylinder 1 from top to bottom. The upper end of the inner cylinder 2 is connected to a top cap 3 that seals its top end, while the lower end is open. The bottom of the outer cylinder 1 is provided with a sealing plate 11 that can seal the lower end of the inner cylinder 2. A mating structure is provided between the outer cylinder 1 and the inner cylinder 2, which can push the inner cylinder 2 up and down when it rotates. When the inner cylinder 2 moves downward, the sealing plate 11 seals the lower end of the inner cylinder 2, so that the inner cavity of the inner cylinder 2 forms a storage cavity 20 for storing auxiliary materials. This is used to store the mixed auxiliary materials. In this embodiment, the material used for mixing is pre-made tea powder. Of course, the auxiliary materials can also be sugar powder, seasonings, etc. Figures 1 to 4 As shown, the outer cylinder 1 has an outlet 12 on its side wall for the auxiliary material to flow into the bottle body A after the inner cylinder 2 moves upward. When the outer cylinder 1 is connected to the bottle opening A1 of the bottle body A, the lower part of the outer cylinder 1 extends into the bottle body A from the bottle opening A1 or is located above the bottle opening A1. Then, when the inner cylinder 2 moves upward, the auxiliary material can enter the bottle body A to mix the beverage inside. The top cap 3 is connected to the inner cylinder 2 via a detachable connection structure. When the inner cylinder 2 moves upward, the top cap 3 can be removed to allow the liquid inside the bottle to flow out through the storage chamber 20 for the user to drink. In this way, after the inner cylinder 2 moves upward, the user only needs to remove the top cap 3 to drink through the inner cylinder 2, without having to remove the entire storage cap before drinking, making it more convenient to use. This storage cap uses a "rotation-linear" motion conversion mechanism to open and close the storage chamber. In its initial state, the inner cylinder 2 is at its lowest position, with its lower end sealed by the capping plate 11 at the bottom of the outer cylinder 1, forming a closed storage chamber 20. Auxiliary materials (such as tea powder) are safely stored within, preventing moisture or leakage. When the user needs to mix a beverage, rotating the top cap 3 rotates the inner cylinder 2. The structure (spiral limiting groove and limiting boss) converts this rotational motion into an axial upward movement of the inner cylinder 2. As the inner cylinder 2 rises, its lower end gradually detaches from the capping plate 11, and the outlet 12 connects to the storage chamber 20. The auxiliary material, under gravity, falls into the bottle A through the outlet 12, achieving automatic dispensing. Further rotation separates the top cap 3 from the inner cylinder 2, opening the drinking channel, allowing the user to directly drink the mixed beverage. This structure achieves an integrated operation process of "one-click dispensing + drinking activation," significantly improving ease of use. Integrated design: Integrating auxiliary material storage, quantitative dispensing, and drinking functions into the bottle cap structure eliminates the need for additional accessories or complex operations.

[0030] In order to make the top cover 3 detachably connected to the inner cylinder 2, such as Figures 1 to 4As shown, the detachable connection structure includes an internal thread 31 on the inner wall of the top cover 3 and an external thread 21 on the outer wall of the inner cylinder 2. The detachable connection structure also includes a locking ring 32 connected to the lower end of the top cover 3. The inner cylinder 2 has a snap-fit ​​groove 22, and the locking ring 32 has a snap-fit ​​ring portion 321 that snaps into the snap-fit ​​groove 22. The locking ring 32 is connected to the top cover by a tearable strip 322. This detachable connection structure uses a dual fixing method of "thread + locking ring". In the initial state, the top cover 3 is tightened and fixed to the upper end of the inner cylinder 2 by the internal thread 31 and the external thread 21. At the same time, the snap-fit ​​ring portion 321 of the locking ring 32 is embedded in the snap-fit ​​groove 22, forming a mechanical limit to prevent the threads from loosening during transportation or shaking. When the user has finished feeding and is ready to drink, a certain torque must be applied to rotate the top cover 3. At this point, the tear strip 322 breaks, releasing the constraint of the locking ring 32. Only then can the top cover 3 continue to rotate and finally be completely removed from the inner cylinder 2. This structure has both anti-accidental opening and easy-to-open characteristics.

[0031] To convert rotational motion into linear motion, such as Figure 3 and Figure 4 As shown, the mating structure includes a spiral limiting groove 23 on the inner cylinder 2 and a limiting boss 13 on the inner sidewall of the outer cylinder 1. The limiting boss 13 is embedded in the limiting groove 23 and slides along its trajectory to convert rotational motion into linear motion. This mating structure is based on the principle of helical transmission: when the inner cylinder 2 rotates relative to the outer cylinder 1, the limiting boss 13 fixed on the outer cylinder 1 slides within the spiral limiting groove 23 of the inner cylinder 2. Limited by the inclination angle of the groove, the limiting boss 13 forces the inner cylinder 2 to move up and down axially. The design of the helical angle determines the corresponding lifting distance per revolution, thereby precisely controlling the stroke and discharge timing of the inner cylinder 2. The structure is simple, the movement is smooth, no additional drive components are required, precise stroke control is achieved, ensuring accurate feeding timing, strong self-locking, stable position after stopping rotation, and not easy to backtrack.

[0032] As a further optimization, such as Figure 5As shown, the limiting groove 23 includes, from top to bottom, a starting section 231, a damping section 232, and a ending section 233. In the initial state, the limiting boss 13 is located in the starting section 231. The sidewall of the damping section 232 is provided with a protruding damping protrusion 234 to increase sliding resistance. The bottom of the ending section 233 is provided with a blocking part 235 to limit the downward stroke of the limiting boss 13. With the above structure, when the inner cylinder 2 is rotated, the limiting boss 13 can generate rotational damping when passing through the damping section 232, which prevents accidental opening and indicates to the user that the opening state has been reached. When the limiting boss 13 abuts against the blocking part 235, the rotation of the inner cylinder 2 is stopped, and then when the inner cylinder 2 continues to rotate after rotating to a certain angle, the top cover 3 is opened. The segmented design of the limiting groove 23 enables multi-stage control: the initial segment 231 is a stationary positioning area, ensuring an initial sealing state; upon entering the damping segment 232, the limiting boss 13 compresses the damping protrusion 234, generating frictional resistance and providing "tactile feedback" to indicate to the user that the opening process has begun; the blocking part 235 at the bottom of the termination segment 233 limits the maximum downward position, ensuring that the inner cylinder 2 does not move excessively downward, leading to structural failure or seal damage. This design combines "tactile feedback" with "mechanical limiting" functions. The damping segment provides clear operational feedback, improving the human-machine interaction experience, preventing accidental opening due to slight collisions or accidental touches, enhancing safety, and the end-of-stroke limiting ensures structural stability and reliability for repeated use.

[0033] To ensure that the limiting boss 13 moves smoothly within the limiting groove 23 and passes smoothly through the damping section 232, such as Figure 5 As shown, the limiting boss 13 is conical or frustoconical, with its small end facing the direction of movement when the inner cylinder 2 moves upward. The conical or frustoconical limiting boss 13 has a guide slope, allowing for a smooth transition through gradual compression when it slides into the damping section 232, avoiding abrupt jamming. The upward-facing design helps it contact the groove sidewall first during upward movement, gradually building pressure, reducing starting resistance, and improving sliding smoothness. This improves sliding performance, reduces the risk of jamming, extends the service life of the mating structure, reduces wear, and enhances the smoothness of the user's rotational operation.

[0034] Since the beverage inside the bottle passes sequentially through the outlet 12, the inner cavity of the outer cylinder 1, the inner cavity of the inner cylinder 2, and the upper opening of the inner cavity of the inner cylinder 2, thus enabling the beverage to be consumed, this embodiment makes two improvements to enhance the sealing function between the outer cylinder 1 and the inner cylinder 2: First, a first sealing ring 24 is provided on the outer wall of the inner cylinder 2 to abut against the inner wall of the outer cylinder 1; second, a second sealing ring 14 is provided on the inner wall of the outer cylinder 1 to abut against the outer wall of the inner cylinder 2. During the up-and-down movement of the inner cylinder 2, the annular gap between it and the outer cylinder 1 is a potential leakage path. The first sealing ring 24 and the second sealing ring 14 form a double-layer sealing barrier. Both undergo pre-compression deformation after assembly, tightly fitting against the opposite cylinder wall, effectively blocking the channel for liquid or gas leakage along the gap. The two sealing rings can be respectively set at different axial positions to form a staggered seal, further improving the leak-proof effect. The dual-seal design significantly improves the overall sealing performance, preventing beverage leakage or external contamination from entering, and adapts to the axial movement of the inner cylinder 2, maintaining dynamic sealing stability.

[0035] Preferably, to facilitate twisting the top cover 3, anti-slip ribs 33 are provided on the outer side wall of the top cover 3. The anti-slip ribs 33 are distributed around the circumference of the top cover 3, increasing the friction between the fingers and the top cover, ensuring effective grip even in humid or sweaty environments, and facilitating the application of rotational torque. This improves ease of operation and is especially suitable for the elderly or children.

[0036] Example 2

[0037] This embodiment describes a uniform pressure liquid outlet structure for a storage bottle cap, which differs from Embodiment 1 in that... Figure 6 As shown, the top of the inner cylinder 2 is provided with a screw ring 25 for a person to hold, preferably located below the snap ring groove 22. The outer circumferential surface of the screw ring 25 is provided with a concave-convex structure to increase friction.

[0038] Example 3

[0039] This embodiment describes a uniform pressure liquid outlet structure for a storage bottle cap, which differs from Embodiment 2 in that, as shown in the following... Figure 7 As shown, the inner cylinder 2 has a different width of the snap ring groove 22.

[0040] Example 4

[0041] This embodiment describes a uniform pressure liquid outlet structure for a storage bottle cap, which differs from Embodiment 1 in that... Figure 8 As shown, the top cover 3 is a flip-open bottle cap, including a cap seat 34 connected to the bottle body and a flip-open cap 35 that can be flipped open relative to the cap seat 34.

[0042] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A user-friendly storage bottle cap, characterized in that: It includes an outer cylinder (1) for connecting to the bottle body (A) and an inner cylinder (2) inserted into the outer cylinder (1) from top to bottom. The upper end of the inner cylinder (2) is connected to a top cap (3) that seals its top end, and the lower end is open. The bottom of the outer cylinder (1) is provided with a sealing plate (11) that can seal the lower end of the inner cylinder (2). There is a mating structure between the outer cylinder (1) and the inner cylinder (2) that can push the inner cylinder (2) to move up and down when the inner cylinder (2) rotates. When the inner cylinder (2) moves down... The sealing plate (11) after the movement seals the lower end of the inner cylinder (2), so that the inner cavity of the inner cylinder (2) forms a storage cavity (20) for storing auxiliary materials. The outer cylinder (1) has an outlet (12) on its side wall for the auxiliary materials to flow into the bottle (A) after the inner cylinder (2) moves upward. The top cover (3) is connected to the inner cylinder (2) through a detachable connection structure. When the inner cylinder (2) moves upward and the top cover (3) is removed, the liquid in the bottle (A) can flow out through the storage cavity (20) for the user to drink.

2. The easy-to-use storage bottle cap according to claim 1, characterized in that: The detachable connection structure includes an internal thread (31) on the inner side wall of the top cover (3) and an external thread (21) on the outer side wall of the inner cylinder (2). The detachable connection structure also includes a locking ring (32) connected to the lower end of the top cover (3). The inner cylinder (2) is provided with a snap ring groove (22). The locking ring (32) is provided with a snap ring part (321) that snaps into the snap ring groove (22). The locking ring (32) is connected to the top cover (3) by a tearable strip (322).

3. The easy-to-use storage bottle cap according to claim 2, characterized in that: The mating structure includes a spiral limiting groove (23) provided on the inner cylinder (2) and a limiting boss (13) provided on the inner side wall of the outer cylinder (1). The limiting boss (13) is embedded in the limiting groove (23) and slides along its trajectory to convert rotational motion into linear motion.

4. The easy-to-use storage bottle cap according to claim 3, characterized in that: The limiting groove (23) includes a starting section (231), a damping section (232), and a termination section (233) from top to bottom. In the initial state, the limiting boss (13) is located in the starting section (231). The sidewall of the damping section (232) is provided with a protruding damping protrusion (234) to increase the sliding resistance. The bottom of the termination section (233) is provided with a blocking part (235) to limit the downward stroke of the limiting boss (13).

5. The easy-to-use storage bottle cap according to claim 4, characterized in that: The limiting boss (13) is conical or frustum-shaped, with its small end facing the direction of movement when the inner cylinder (2) moves upward.

6. The easy-to-use storage bottle cap according to any one of claims 1 to 5, characterized in that: The inner cylinder (2) is provided with a first sealing ring (24) on the outer side wall for abutting against the inner side wall of the outer cylinder (1).

7. The easy-to-use storage bottle cap according to any one of claims 1 to 5, characterized in that: The inner wall of the outer cylinder (1) is provided with a second sealing ring (14) for abutting against the outer wall of the inner cylinder (2).

8. The easy-to-use storage bottle cap according to any one of claims 1 to 5, characterized in that: The outer side wall of the top cover (3) is provided with anti-slip ribs (33).

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