A capsule bottle
Patent Information
- Application Number
- CN202522149300.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-11
- Publication Date
- 2026-09-08
- Estimated Expiration
- 2035-10-11
AI Technical Summary
若旋拧过松,则密封不严;若旋拧过紧,则可能导致塑料瓶盖或瓶口的螺纹发生“滑丝”变形,甚至使垫片发生永久性蠕变或压溃,反而破坏密封性,且对老年用户或手部无力者极不友好
[0016] Compared with the prior art, this utility model has the following beneficial effects: When the capsule bottle body and cap are closed, under the support of the support part, the abutment will rise relative to the cap during the closing process. During the rising process, the top of the flexible sealing ring is compressed and deformed by the top wall of the cap, and the outward protrusion in the middle of the flexible sealing ring is tightly attached to the inner wall of the bottle body to seal the bottle body. Since the deformation range of the flexible sealing ring can be large, the sealing performance of the cap will not be damaged due to vibration and slight displacement, thereby effectively improving the sealing performance.
Smart Images

Figure CN224727481U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pharmaceutical, health product or food packaging technology, and in particular to a capsule bottle, especially a capsule bottle with high sealing performance. Background Technology
[0002] Capsule bottles, as a widely used packaging container, are commonly used to hold capsules, tablets, powders, and other contents that are sensitive to humidity, oxygen, and light. Their sealing performance directly affects the stability, efficacy, and safety of the contents, and is a key factor in preventing the product from becoming damp, oxidized, or deteriorating, thus ensuring that it meets quality standards throughout its shelf life.
[0003] Currently, most capsule bottles on the market consist of two main parts: the bottle body and the cap. Sealing is achieved by screwing or pressing the cap onto the bottle neck. However, existing sealing structures still have many shortcomings in practical applications, and the sealing effect is not satisfactory. These shortcomings are mainly manifested in the following aspects: The reliability of a single sealing structure is low: Most traditional capsule bottles rely solely on the tight contact between the flat gasket at the top of the cap and the end face of the bottle mouth to achieve a seal. This single sealing surface will drastically reduce its sealing effect when the cap is slightly loose or when there is a slight displacement between the cap and the bottle body due to vibration during transportation, allowing external moisture and air to easily enter the bottle.
[0004] The sealing effect is highly dependent on the torque at which the user tightens the cap. If the cap is too loose, the seal will be poor; if it is too tight, the threads of the plastic cap or bottle neck may strip and deform, or even cause permanent creep or crushing of the gasket, which will damage the seal. This is also very unfriendly to elderly users or those with weak hands. Utility Model Content
[0005] This invention addresses the shortcomings of existing technologies by providing a capsule bottle that effectively improves sealing performance and prevents the cap from being damaged by vibration or minor displacement.
[0006] To solve the aforementioned technical problems, this utility model provides the following technical solution: a capsule bottle, comprising a bottle body and a cap, wherein a support portion is provided at the opening of the bottle body, and a liftable abutment is provided inside the cap. A flexible sealing ring is provided on the outer periphery of the abutment, and the flexible sealing ring has a guiding arc protruding outward from the center. When the cap is tightly closed on the bottle body, the abutment is supported and raised by the support portion, and the top of the flexible sealing ring is compressed and deformed by the top wall of the cap. The outward protrusion in the center of the flexible sealing ring is pressed tightly against the inner wall of the bottle body to seal the bottle body. When the bottle body and cap of this capsule bottle are closed, the abutment rises relative to the cap under the support of the support portion. During the rising process, the top of the flexible sealing ring is compressed and deformed by the top wall of the cap, and the outward protrusion in the center of the flexible sealing ring is pressed tightly against the inner wall of the bottle body to seal the bottle body. Because the deformation range of the flexible sealing ring can be relatively large, the sealing performance of the cap will not be compromised due to vibration or minor displacement, thereby effectively improving the sealing performance.
[0007] In the above technical solution, preferably, a support ring is provided on the top wall of the bottle cap, which abuts against the inner top wall of the flexible sealing ring. With this structure, during the deformation of the flexible sealing ring, the support ring can abut against the inner top wall of the flexible sealing ring, causing the middle part of the flexible sealing ring to bulge outwards during deformation, resulting in a better sealing effect.
[0008] In the above technical solution, preferably, the bottle body is provided with an intermediate cap, the intermediate cap is provided with a guide hole, a sliding cap, and a capsule dispensing opening, and the bottom of the sliding cap is provided with a guide rod extending into the guide hole, the sliding cap sliding to open or close the capsule dispensing opening. This structure allows the capsule dispensing opening to be opened or closed by sliding the sliding cap, and the capsule dispensing opening is relatively small, preventing the dispensing of too many capsules at once, making it more suitable for metered capsule dispensing and avoiding direct contact between unused capsules and hands.
[0009] In the above technical solution, preferably, a limiting protrusion is provided on the outer periphery of the guide rod below the intermediate cover to confine the guide rod within the guide hole. This structure prevents the sliding cover from detaching from the guide hole.
[0010] In the above technical solution, preferably, the guide hole, the sliding cover, and the capsule dispensing opening are all arc-shaped. This structure allows for a longer sliding length of the sliding cover, providing sufficient opening space for the capsule opening, especially for small-sized capsule bottles.
[0011] In the above technical solution, preferably, the sliding cover is provided with a protruding actuating part for moving the sliding cover. This structure allows the sliding cover to be easily moved by the actuating part.
[0012] In the above technical solution, preferably, the top wall of the bottle cap extends downwards with a first annular protrusion, and the upper surface of the abutment extends upwards with a second annular protrusion. The first and second annular protrusions are sleeved together, and mutually limiting rings are provided at the bottom of the first annular protrusion and the top of the second annular protrusion. This structure facilitates the installation of the abutment, ensures that the abutment will not detach from the bottle cap, and enables the lifting and lowering of the bottle cap when it is closed.
[0013] In the above technical solution, preferably, the first annular protrusion is provided with several deformation notches. This structure allows the first annular protrusion to bend and deform more easily during assembly, making it easier to fit the first annular protrusion and the second annular protrusion together.
[0014] In the above technical solution, preferably, the flexible sealing ring is fixed to the abutment member by secondary injection molding. This structure facilitates processing and prevents the flexible sealing ring from detaching from the abutment member.
[0015] In the above technical solution, preferably, the bottle body has a stepped surface that is larger at the top and smaller at the bottom, the intermediate cap matches the stepped surface, the inner wall of the bottle body has an annular positioning groove, and the outer wall of the intermediate cap has a protruding ring that engages with the annular positioning groove. This structure allows the intermediate cap to be easily and securely installed into the bottle body.
[0016] Compared with the prior art, this utility model has the following beneficial effects: When the capsule bottle body and cap are closed, under the support of the support part, the abutment will rise relative to the cap during the closing process. During the rising process, the top of the flexible sealing ring is compressed and deformed by the top wall of the cap, and the outward protrusion in the middle of the flexible sealing ring is tightly attached to the inner wall of the bottle body to seal the bottle body. Since the deformation range of the flexible sealing ring can be large, the sealing performance of the cap will not be damaged due to vibration and slight displacement, thereby effectively improving the sealing performance. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.
[0018] Figure 2 This is an exploded structural diagram of an embodiment of the present utility model.
[0019] Figure 3 This is a cross-sectional structural diagram of an embodiment of the present utility model.
[0020] Figure 4 This is a schematic diagram of the internal structure of the cover in an embodiment of this utility model. Detailed Implementation
[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments: See below Figures 1 to 4 A capsule bottle includes a bottle body 1 and a bottle cap 2. The bottle body 1 includes an outer bottle body and an inner liner, with the inner liner fastened and fixed to the outer bottle body. The bottle cap 2 includes an outer bottle cap and an inner bottle cap that are fastened and fixed to each other. The bottle body 1 and the bottle cap 2 are threaded together. A support part 3 is provided at the opening of the bottle body 1. A liftable abutment 4 is provided inside the bottle cap 2. A flexible sealing ring 5 is provided on the outer periphery of the abutment 4. The flexible sealing ring 5 has a guiding arc that protrudes outward from the center. When the bottle cap 2 is tightly closed on the bottle body 1, the abutment 4 is supported and raised by the support part 3. The top of the flexible sealing ring 5 is compressed and deformed by the top wall of the bottle cap 2. The outward protrusion in the center of the flexible sealing ring 5 is tightly attached to the inner wall of the bottle body 1 to seal the bottle body 1. When the capsule bottle body 1 and cap 2 are closed, the abutment 4 rises relative to the cap 2 under the support of the support part 3. During the closing process, the top of the flexible sealing ring 5 is compressed and deformed by the top wall of the cap 2. The outward protrusion in the middle of the flexible sealing ring 5 tightly adheres to the inner wall of the bottle body 1 to seal the bottle body 1. Because the deformation range of the flexible sealing ring 5 can be relatively large, the sealing performance of the cap 2 will not be damaged due to vibration or slight displacement, thereby effectively improving the sealing performance. Specifically, in this embodiment, the support part 3 is the upper surface of the intermediate cap 7. In other embodiments where there is no intermediate cap 7, the support part 3 can also be a stepped surface set on the inner wall of the bottle body 1, as long as it can support the bottom of the abutment 4 and lift the abutment 4 relative to the cap 2 when the cap 2 is closed.
[0022] In this embodiment, a support ring 6 is provided on the top wall of the bottle cap 2, which abuts against the inner top wall of the flexible sealing ring 5. With this structure, during the deformation of the flexible sealing ring 5, the support ring 6 can abut against the inner top wall of the flexible sealing ring 5, causing the middle part of the flexible sealing ring 5 to bulge outward during the deformation process, resulting in a better sealing effect.
[0023] In this embodiment, a middle cover 7 is provided inside the bottle body 1. The middle cover 7 is provided with a guide hole 8, a sliding cover 9, and a capsule dispensing opening 10. A guide rod 11 extending into the guide hole 8 is provided at the bottom of the sliding cover 9. The sliding cover 9 slides to open or close the capsule dispensing opening 10. With this structure, the capsule dispensing opening 10 can be opened or closed by sliding the sliding cover 9. The opening of the capsule dispensing opening 10 is relatively small, which prevents a large number of capsules from being poured out at once. It is more suitable for metering capsules and avoids unused capsules coming into direct contact with the hands.
[0024] In this embodiment, a limiting protrusion 12 is provided on the outer periphery of the guide rod 11 below the intermediate cover 7 to confine the guide rod 11 within the guide hole 8. This structure prevents the sliding cover 9 from disengaging from the guide hole 8.
[0025] In this embodiment, the guide hole 8, the sliding cover 9, and the capsule dispensing opening 10 are all arc-shaped. This structure allows the sliding cover 9 to slide for a longer distance, providing sufficient opening space for the capsule opening, especially for small-sized capsule bottles.
[0026] In this embodiment, the sliding cover 9 is provided with a protruding actuating part 13 for moving the sliding cover 9. This structure allows the sliding cover 9 to be moved easily by the actuating part 13.
[0027] In this embodiment, a first annular protrusion 14 extends downward from the top wall of the bottle cap 2, and a second annular protrusion 15 extends upward from the upper surface of the abutment member 4. The first annular protrusion 14 and the second annular protrusion 15 are fitted together, and mutually limiting rings 16 are provided at the bottom of the first annular protrusion 14 and the top of the second annular protrusion 15. This structure facilitates the installation of the abutment member 4, ensures that the abutment member 4 will not detach from the bottle cap 2, and enables the lifting and lowering of the bottle cap 2 when it is closed.
[0028] In this embodiment, the first annular protrusion 14 is provided with a plurality of deformation notches 17. This structure allows the first annular protrusion 14 to bend and deform more easily during assembly, making it easier to fit the first annular protrusion 14 and the second annular protrusion 15 together.
[0029] In this embodiment, the flexible sealing ring 5 is fixed to the abutment member 4 by secondary injection molding. This structure facilitates processing and prevents the flexible sealing ring 5 from detaching from the abutment member 4.
[0030] In this embodiment, the bottle body 1 has a stepped surface 18 that is larger at the top and smaller at the bottom. The middle cover 7 matches the stepped surface 18. The inner wall of the bottle body 1 has an annular positioning groove 19, and the outer wall of the middle cover 7 has a positioning protrusion 20 that engages with the annular positioning groove 19. This structure allows the middle cover 7 to be easily fixedly installed inside the bottle body 1.
[0031] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.
Claims
1. A capsule bottle comprising a bottle body (1) and a cap (2), characterized in that: The bottle body (1) has a support part (3) at the opening, and the bottle cap (2) has a liftable abutment (4) inside. The abutment (4) has a flexible sealing ring (5) on its outer periphery. The flexible sealing ring (5) has a guiding arc that protrudes outward from the middle. When the bottle cap (2) is tightly closed on the bottle body (1), the abutment (4) is supported and raised by the support part (3). The top of the flexible sealing ring (5) is compressed and deformed by the top wall of the bottle cap (2). The protrusion of the flexible sealing ring (5) protrudes outward from the middle and adheres tightly to the inner wall of the bottle body (1) to seal the bottle body (1).
2. A capsule bottle as defined in claim 1, characterized in that: The bottle cap (2) has a support ring (6) on its top wall that abuts against the inner top wall of the flexible sealing ring (5).
3. A capsule bottle as defined in claim 1, wherein: The bottle body (1) is provided with an intermediate cover (7), the intermediate cover (7) is provided with a guide hole (8), a sliding cover (9) and a capsule opening (10), the bottom of the sliding cover (9) is provided with a guide rod (11) extending into the guide hole (8), and the sliding cover (9) slides to open or close the capsule opening (10).
4. A capsule bottle as defined in claim 3, characterized in that: The guide rod (11) is provided with a limiting protrusion (12) on its outer periphery below the intermediate cover (7) for limiting the guide rod (11) within the guide hole (8).
5. A capsule bottle as defined in claim 3, wherein: The guide hole (8), the sliding cover (9), and the capsule opening (10) are all arc-shaped.
6. A capsule bottle as defined in claim 3, wherein: The sliding cover (9) is provided with a protruding actuating part (13) for actuating the sliding cover (9).
7. A pill bottle as defined in claim 1, wherein: The bottle cap (2) has a first annular protrusion (14) extending downward from the top wall, and the abutment (4) has a second annular protrusion (15) extending upward from the upper surface. The first annular protrusion (14) and the second annular protrusion (15) are fitted together. The bottom of the first annular protrusion (14) and the top of the second annular protrusion (15) are provided with mutually limiting rings (16).
8. A capsule bottle as defined in claim 7, characterized in that: The first annular protrusion (14) is provided with several deformation notches (17).
9. A capsule bottle as defined in claim 1, wherein: The flexible sealing ring (5) is fixed to the abutment (4) by secondary injection molding.
10. A capsule bottle as defined in claim 1, wherein: The bottle body (1) has a stepped surface (18) that is larger at the top and smaller at the bottom. The middle cover (7) matches the stepped surface (18). The inner wall of the bottle body (1) has an annular positioning groove (19). The outer wall of the middle cover (7) has a positioning protrusion (20) that fits into the annular positioning groove (19).