Bottle cap assembly and container

Abstract

The invention relates to a bottle cap assembly and a container, the bottle cap assembly is used for sealing a bottle opening of the container and comprises an inner cap and a sealing piece, the sealing piece is provided with a first fixing part, a second fixing part and a liquid channel penetrating through the first fixing part and the second fixing part in the axial direction of the bottle opening, the first fixing part is inserted into the inner cap and connected with the inner cap, and the second fixing part is inserted into the liquid channel. The second fixing part is provided with an annular containing groove, and the annular containing groove is configured to contain a bottle opening and abut against the bottle opening; according to the bottle cap assembly and the container, the sealing element replaces an inner sleeve and an inner plug in an existing bottle cap to achieve the sealing effect, the fit clearance between the inner sleeve and the inner plug in the existing bottle cap is eliminated, the sealing requirement of the bottle cap assembly is met, the number of parts forming the bottle cap assembly is reduced, and the cost is reduced. Therefore, the production cost of the bottle cap assembly is reduced while the bottle cap assembly is ensured to have a simple structure, and the requirements of cost reduction and efficiency improvement of manufacturers are met.

Description

Technical Field

[0001] This application relates to the technical field of container packaging, and particularly to a bottle cap assembly and a container. Background Art

[0002] During the transportation of liquids, to ensure their safety and integrity, special containers are usually used for packaging, and the containers are sealed with bottle caps.

[0003] However, for liquor products, there is a widespread phenomenon in the current market that the liquor leaks due to unstable sealing performance of the bottle caps, which causes losses and adverse effects to both consumers and producers. In addition, most of the current bottle caps for liquor products have complex structures and high production costs, making it difficult to meet the needs of producers to reduce costs and increase efficiency. Summary of the Invention

[0004] Based on this, it is necessary to provide a bottle cap assembly and a container to address the problems of unstable sealing performance of the bottle cap, complex structure, and high production cost.

[0005] According to one aspect of the present application, a bottle cap assembly is provided for sealing the mouth of a container. The bottle cap assembly includes an inner cap and a seal.

[0006] Along the axial direction of the mouth of the container, the seal has a first fixing portion and a second fixing portion. The first fixing portion and the second fixing portion jointly enclose a liquid passage for communicating with the mouth of the container.

[0007] The first fixing portion is inserted into the interior of the inner cap and is connected to the inner cap.

[0008] The second fixing portion is provided with an annular receiving groove configured to receive the mouth of the container, and the groove wall of the annular receiving groove abuts against the mouth of the container.

[0009] In one embodiment, an annular tightening groove communicating with the annular receiving groove is provided in the seal. Along the radial direction of the mouth of the container, the width of the annular tightening groove is smaller than the width of the annular receiving groove.

[0010] In one embodiment, the inner cap is made of a food-grade material, the seal is made of a food-grade material, and the seal has elasticity.

[0011] In one embodiment, the annular receiving groove includes a first annular groove and a second annular groove that communicate with each other. The first annular groove and the second annular groove are sequentially formed on the side surface of the second fixing portion facing away from the inner cap, and along the radial direction of the mouth of the container, the width of the first annular groove is greater than the width of the second annular groove.

[0012] In one embodiment, along the radial direction of the bottle mouth, the width of the first annular groove is greater than the thickness of the bottle mouth.

[0013] In one embodiment, along the axial direction of the bottle mouth, the depth of the first annular groove is less than the depth of the second annular groove.

[0014] In one embodiment, the inner cap includes a fixed cap and a fixed ring. The fixed ring is arranged inside the fixed cap. The inner peripheral surface of the seal is in contact with the outer peripheral surface of the fixed ring, and the outer peripheral surface of the seal is connected to the inner peripheral surface of the fixed cap.

[0015] In one embodiment, the bottle cap assembly further includes an appearance part. The inner cap and the seal are both accommodated inside the appearance part and are both connected to the appearance part.

[0016] According to another aspect of the present application, there is provided a container, including a bottle body and the bottle cap assembly as described in any one of the above embodiments. The bottle cap assembly is arranged at the bottle mouth of the bottle body.

[0017] In one embodiment, the bottle mouth and the bottle lip of the bottle body are both located inside the annular accommodation groove and are both in close fit with the inner peripheral surface of the annular accommodation groove.

[0018] For the above-mentioned bottle cap assembly and container, the seal is used to replace the inner sleeve and the inner plug in the existing bottle cap to achieve the sealing effect. This not only eliminates the fitting gap between the inner sleeve and the inner plug in the existing bottle cap, meets the sealing requirements of the bottle cap assembly, but also reduces the number of parts constituting the bottle cap assembly. Furthermore, while ensuring that the bottle cap assembly has a simple structure, it reduces the production cost of the bottle cap assembly, meeting the needs of the manufacturer to reduce costs and increase efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of a part between the bottle cap assembly and the bottle body in some embodiments of the present application.

[0020] Figure 2 is Figure 1 Partial enlarged view of part A.

[0021] Figure 3 It is a schematic structural diagram of the seal of the bottle cap assembly in some embodiments of the present application.

[0022] Figure 4 It is a schematic partial structural diagram of the container in some embodiments of the present application.

[0023] Reference numerals:

[0024] 1. Inner cap; 11. Fixed cap; 12. Fixed ring;

[0025] 2. Seal;

[0026] 21. First fixing part; 22. Second fixing part;

[0027] 23. Annular accommodating groove; 231. First annular groove; 232. Second annular groove;

[0028] 24. Liquid channel;

[0029] 25. Annular tightening groove;

[0030] 3. Appearance part;

[0031] 4. Bottle body; 41. Bottle mouth. Specific implementation manners

[0032] In order to make the above objects, features, and advantages of the present application more obvious and understandable, the following will describe the specific implementation manners of the present application in detail with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0033] In the description of the present application, it should be understood that if these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0034] In addition, if these terms "first" and "second" appear, these terms are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, if the term "plural" appears, the meaning of "plural" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0035] In this application, unless otherwise clearly stipulated and defined, if terms such as "installed", "connected", "linked", "fixed", etc. appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0036] In this application, unless otherwise clearly stipulated and defined, if there is a description such as a first feature being "on" or "under" a second feature, its meaning can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over", and "on top of" the second feature can mean that the first feature is directly above or obliquely above the second feature, or simply indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath", and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature has a lower horizontal height than the second feature.

[0037] It should be noted that if an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there can also be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. If so, the terms "vertical", "horizontal", "up", "down", "left", "right", and similar expressions used in this application are only for the purpose of illustration and do not represent the only implementation.

[0038] Currently, most of the bottle caps used in the market to seal liquids such as white liquor have unstable sealing performance, resulting in the leakage of liquids such as white liquor. This not only brings inconvenience to consumers but also causes economic losses and negative impacts on the brand image of producers. In addition, most of the existing bottle caps for liquor have complex structures and high production costs, making it difficult to meet the producers' requirements for cost reduction and production efficiency improvement.

[0039] In summary, this application provides a bottle cap assembly, which can integrate the inner sleeve and the inner plug that play a sealing role inside the bottle cap, eliminate the fitting gaps between the split components, meet the sealing requirements of the bottle cap, and reduce the number of plastic parts that make up the bottle cap, making the structure simple and reducing the production cost at the same time, meeting the producers' requirements for cost reduction and efficiency improvement.

[0040] Refer to Figure 1, an embodiment of the present application provides a bottle cap assembly for being assembled on a container and sealing the bottle mouth 41 of the container. The bottle cap assembly includes an inner cap 1 and a seal 2. The seal 2 is used to closely cooperate with the bottle mouth 41 of the container to form a first sealing line of defense to prevent liquid leakage, and at the same time play the roles of sealing and anti-theft. The inner cap 1 is used to cooperate with the seal 2 to form a second sealing line of defense to further enhance the sealing performance of the bottle cap assembly.

[0041] Refer to Figures 1-3 , specifically, along the axial direction of the bottle mouth 41, the seal 2 has a first fixing portion 21 and a second fixing portion 22.

[0042] The second fixing portion 22 is provided with an annular accommodating groove 23, and the annular accommodating groove 23 is configured to accommodate the bottle mouth 41 and abut against the bottle mouth 41. By inserting the bottle mouth 41 of the container into the annular accommodating groove 23, the seal 2 can form a first sealing line of defense with the bottle mouth 41 of the container to prevent liquid leakage. In addition, a fastener that is snap-fitted with the bottle mouth 41 can be provided in the annular accommodating groove 23 to achieve the functions of sealing and anti-theft.

[0043] The first fixing portion 21 is inserted into the interior of the inner cap 1 and connected to the inner cap 1, so that the inner cap 1 and the seal 2 cooperate to form a second sealing line of defense to further enhance the sealing performance of the bottle cap assembly.

[0044] Further, along the axial direction of the bottle mouth 41, the seal 2 also has a liquid channel 24 that penetrates through the first fixing portion 21 and the second fixing portion 22. The liquid in the container can flow into the liquid channel 24 through the bottle mouth 41 and flow out through the liquid channel 24.

[0045] Specifically, along the axial direction of the bottle mouth 41, the liquid channel 24 has an input port and an output port. The input port is opened on the side surface of the first fixing portion 21 facing away from the second fixing portion 22, and the output port is opened on the side surface of the second fixing portion 22 facing away from the first fixing portion 21.

[0046] When the seal 2 is press-fitted on the bottle mouth 41 of the container so that the bottle mouth 41 abuts against the annular accommodating groove 23, it can be ensured that the liquid at the bottle mouth 41 can flow into the liquid channel 24 through the output port and will not flow to the outside. When the inner cap 1 and the seal 2 are assembled, the output port can be blocked by the inner cap 1 so that the liquid in the liquid channel 24 will not flow to the outside, effectively ensuring the sealing performance of the bottle cap assembly.

[0047] In summary, for the bottle cap assembly of the present application, the sealing effect is achieved by using the sealing member 2 to replace the inner sleeve and inner plug in the existing bottle cap. This not only eliminates the fitting gap between the inner sleeve and inner plug in the existing bottle cap, meets the sealing requirements of the bottle cap assembly, but also reduces the number of parts constituting the bottle cap assembly. Furthermore, while ensuring a simple structure of the bottle cap assembly, it reduces the production cost of the bottle cap assembly, meeting the needs of manufacturers to reduce costs and increase efficiency.

[0048] Refer to Figure 1 , in one embodiment, the inner cap 1 is made of a food-grade material to meet strict food safety standards. The sealing member 2 is made of a food-grade material to meet strict food safety standards. That is, since both the inner cap 1 and the sealing member 2 need to be in contact with the liquid in the container, by selecting food-grade materials for both the inner cap 1 and the sealing member 2, it is ensured that the bottle cap assembly meets strict food safety standards.

[0049] In addition, in the embodiments of the present application, the sealing member 2 has elasticity, enabling the sealing member 2 to closely fit with the bottle mouth 41, reducing the possibility of loosening, and improving the sealing effect between the sealing member 2 and the bottle mouth 41.

[0050] Refer to Figures 1-3 , in one embodiment, an annular tightening groove 25 communicating with the annular accommodating groove 23 is provided in the sealing member 2. The annular tightening groove 25 is coaxially arranged with the annular accommodating groove 23 to increase the pre-tightening force of the annular accommodating groove 23, enabling the sealing member 2 to more closely fit with the bottle mouth 41, reducing the possibility of loosening, and improving the sealing performance between the sealing member 2 and the bottle mouth 41.

[0051] It can be understood that in the embodiments of the present application, the sealing member 2 is made of thermoplastic elastomer (TPE) to meet the requirements of the bottle cap assembly in terms of sealing performance and safety. That is, TPE has high elasticity, high strength, and high resilience of rubber, can provide excellent sealing performance, and can increase the pre-tightening force of the annular accommodating groove 23 by providing the annular tightening groove 25 communicating with the annular accommodating groove 23. Moreover, as an environmentally friendly and non-toxic material, TPE does not contain plasticizers and heavy metals, can be safely used for food and beverage packaging, and meets strict food safety standards.

[0052] Furthermore, in the embodiments of the present application, the width of the annular tightening groove 25 in the radial direction of the bottle mouth 41 is smaller than the width of the annular accommodating groove 23 in the radial direction of the bottle mouth 41 to ensure the effect of increasing the pre-tightening force of the annular accommodating groove 23 by the annular tightening groove 25. The depth of the annular accommodating groove 23 in the axial direction of the bottle mouth 41 is greater than the depth of the annular tightening groove 25 in the axial direction of the bottle mouth 41 to ensure a larger contact area between the sealing member 2 and the container, thereby ensuring the sealing effect.

[0053] Refer to Figure 1 and Figure 3, in one embodiment, the annular accommodating groove 23 includes a first annular groove 231 and a second annular groove 232 that communicate with each other. The first annular groove 231 and the second annular groove 232 are sequentially formed on the side of the second fixing portion 22 facing away from the inner lid 1. That is, the first annular groove 231 is formed on the side of the second fixing portion 22 facing away from the inner lid 1, and the second annular groove 232 is formed on the groove wall of the first annular groove 231. When the seal 2 is assembled with the container, the bottle mouth 41 of the container sequentially enters the interiors of the first annular groove 231 and the second annular groove 232.

[0054] Wherein, the width of the first annular groove 231 along the radial direction of the bottle mouth 41 is greater than the width of the second annular groove 232, so that the first annular groove 231 with a larger width can provide a wider initial guiding path for the bottle mouth 41, making it easier for the bottle mouth 41 to align and enter the first annular groove 231, reducing the difficulty of aligning the bottle mouth 41 with the groove opening, and improving the assembly efficiency. Moreover, the larger width of the first annular groove 231 can accommodate bottle mouths 41 of different sizes, providing better assembly flexibility. The larger width of the first annular groove 231 can also better contact the bottle mouth 41 to form a preliminary seal, so as to further enhance the sealing performance through the second annular groove 232 subsequently.

[0055] Specifically, along the radial direction of the bottle mouth 41, the width of the first annular groove 231 is greater than the thickness of the bottle mouth 41, so that the first annular groove 231 can provide a wider initial guiding path for the bottle mouth 41, facilitating the bottle mouth 41 of the container to sequentially enter the interiors of the first annular groove 231 and the second annular groove 232.

[0056] Along the radial direction of the bottle mouth 41, the width of the second annular groove 232 is less than the thickness of the bottle mouth 41 to ensure that the bottle mouth 41 can be in close contact with the groove wall of the second annular groove 232, thereby ensuring the sealing effect between the container and the seal 2.

[0057] More specifically, in the embodiment of the present application, the depth of the first annular groove 231 along the axial direction of the bottle mouth 41 is less than the depth of the second annular groove 232 along the axial direction of the bottle mouth 41 to achieve a more effective sealing and assembly process. That is, the shallower first annular groove 231 can provide a shallower initial guiding path for the bottle mouth 41, making it easier for the bottle mouth 41 to align and enter the first annular groove 231, and then ensuring a larger contact area between the bottle mouth 41 and the seal 2 through the deeper second annular groove 232, thereby ensuring the sealing performance.

[0058] In addition, in an embodiment not shown in the present application, the depth of the first annular groove 231 along the axial direction of the bottle mouth 41 is greater than or equal to the depth of the second annular groove 232 along the axial direction of the bottle mouth 41 to provide sufficient space and guidance for the bottle mouth 41 so that it can accurately align with the second annular groove 232 during the installation process.

[0059] Referring to Figures 1-2 , in one embodiment, the inner cap 1 includes a fixed cap 11 and a fixed ring 12. The fixed ring 12 is disposed inside the fixed cap 11 and cooperates with the inner peripheral surface of the fixed cap 11 to enclose a sealed space. The first fixing portion 21 of the seal 2 is received in the sealed space, and the inner peripheral surface of the seal 2 abuts against the outer peripheral surface of the fixed ring 12. The outer peripheral surface of the seal 2 is threadedly connected to the inner peripheral surface of the fixed cap 11, so as to simultaneously achieve the detachable connection and sealing between the seal 2 and the inner cap 1.

[0060] Referring to Figure 4 , in one embodiment, the bottle cap assembly further includes an appearance member 3. The inner cap 1 and the seal 2 are both received inside the appearance member 3 and are both connected to the appearance member 3. The appearance member 3 can accommodate and protect the inner cap 1 and the seal 2, prevent them from being damaged during transportation and use, and play a role in beautifying the bottle cap assembly and enhancing the product image.

[0061] In addition, in some embodiments, the seal 2 may have a claw portion that can engage with the bottle lip of the container. The appearance member 3 is sleeved outside the inner cap 1 and the seal 2 and contacts the outer side surfaces of the inner cap 1 and the seal 2. When the bottle cap assembly is assembled on the container, the claw portion engages with the bottle lip of the container. When the bottle cap assembly is forcibly pulled out, the claw portion engaged with the bottle lip will drive the seal 2 to deform, so that the appearance member 3 deforms under the extrusion of the deformed seal 2, reminding the consumer that the bottle cap assembly has been opened, preventing packaging material recycling, etc., and achieving the purpose of preventing counterfeiting.

[0062] Referring to Figures 1-3 , the embodiment of the present application further provides a container, including a bottle body 4 and a bottle cap assembly as described in any one of the above embodiments. The bottle cap assembly is disposed at the bottle mouth 41 of the bottle body 4. Specifically, the bottle cap assembly includes an inner cap 1 and a seal 2. The seal 2 is used to closely cooperate with the bottle mouth 41 of the container to form a first sealing line of defense to prevent liquid leakage, and at the same time play the roles of sealing and anti-theft. The inner cap 1 is used to cooperate with the seal 2 to form a second sealing line of defense to further enhance the sealing performance of the bottle cap assembly.

[0063] During specific setting, along the axial direction of the bottle mouth 41, the seal 2 has a first fixing part 21 and a second fixing part 22. The second fixing part 22 is provided with an annular accommodating groove 23, and the annular accommodating groove 23 is configured to accommodate the bottle mouth 41 and abut against the bottle mouth 41. By inserting the bottle mouth 41 of the container into the annular accommodating groove 23, a first sealing line of defense can be formed between the seal 2 and the bottle mouth 41 of the container to prevent liquid leakage. In addition, a fastener that is snap-fitted with the bottle mouth 41 can be provided in the annular accommodating groove 23 to achieve the functions of sealing and anti-theft. The first fixing part 21 is inserted into the interior of the inner cap 1 and connected to the inner cap 1, so that the inner cap 1 and the seal 2 cooperate to form a second sealing line of defense, further enhancing the sealing performance of the bottle cap assembly.

[0064] Furthermore, along the axial direction of the bottle mouth 41, the seal 2 also has a liquid channel 24 that penetrates through the first fixing part 21 and the second fixing part 22. The liquid in the container can flow into the liquid channel 24 through the bottle mouth 41 and flow out through the liquid channel 24. Specifically, along the axial direction of the bottle mouth 41, the liquid channel 24 has an input port and an output port. The input port is opened on the side of the first fixing part 21 facing away from the second fixing part 22, and the output port is opened on the side of the second fixing part 22 facing away from the first fixing part 21.

[0065] When the seal 2 is press-fitted onto the bottle mouth 41 of the container so that the bottle mouth 41 abuts against the annular accommodating groove 23, it can be ensured that the liquid at the bottle mouth 41 can flow into the liquid channel 24 through the output port and will not flow to the outside. When the inner cap 1 and the seal 2 are assembled, the output port can be blocked by the inner cap 1 so that the liquid in the liquid channel 24 will not flow to the outside, effectively ensuring the sealing performance of the bottle cap assembly.

[0066] In the container of the present application, by using the seal 2 in the bottle cap assembly to replace the inner sleeve and the inner plug to achieve the sealing effect, the fitting gap between the inner sleeve and the inner plug is eliminated, meeting the sealing requirements of the bottle cap assembly, and reducing the number of parts constituting the bottle cap assembly, so as to reduce the production cost of the bottle cap assembly while ensuring a simple structure of the bottle cap assembly, meeting the needs of the manufacturer to reduce costs and increase efficiency.

[0067] In one of the embodiments, the bottle mouth 41 and the bottle lip of the bottle body 4 are both located in the annular accommodating groove 23 and are both in close fit with the inner peripheral surface of the annular accommodating groove 23 to ensure the sealing effect of the seal 2 on the bottle body 4.

[0068] In the embodiment of the present application, the material of the inner cap 1 is a food-grade material to meet strict food safety standards. The material of the seal 2 is a food-grade material to meet strict food safety standards. That is, since both the inner cap 1 and the seal 2 need to be in contact with the liquid in the container, by selecting food-grade materials for both the inner cap 1 and the seal 2, it is ensured that the bottle cap assembly meets strict food safety standards.

[0069] In addition, in the embodiments of the present application, the seal 2 is elastic, enabling the seal 2 to closely fit with the bottle mouth 41, reducing the possibility of loosening, and improving the sealing effect between the seal 2 and the bottle mouth 41.

[0070] In one embodiment, an annular tightening groove 25 communicating with the annular accommodating groove 23 is provided in the seal 2. The annular tightening groove 25 and the annular accommodating groove 23 are coaxially arranged to increase the pre-tightening force of the annular accommodating groove 23, enabling the seal 2 to more closely fit with the bottle mouth 41, reducing the possibility of loosening, and improving the sealing performance between the seal 2 and the bottle mouth 41.

[0071] It can be understood that in the embodiments of the present application, the seal 2 is made of thermoplastic elastomer (TPE) to meet the requirements of the bottle cap assembly in terms of sealing performance and safety. That is, TPE has high elasticity, high strength, and high resilience of rubber, can provide excellent sealing performance, and can increase the pre-tightening force of the annular accommodating groove 23 by providing the annular tightening groove 25 communicating with the annular accommodating groove 23. Moreover, as an environmentally friendly and non-toxic material, TPE does not contain plasticizers and heavy metals, can be safely used for food and beverage packaging, and meets strict food safety standards.

[0072] Furthermore, in the embodiments of the present application, the width of the annular tightening groove 25 in the radial direction of the bottle mouth 41 is smaller than the width of the annular accommodating groove 23 in the radial direction of the bottle mouth 41 to ensure the effect of increasing the pre-tightening force of the annular tightening groove 25 on the annular accommodating groove 23. The depth of the annular accommodating groove 23 in the axial direction of the bottle mouth 41 is greater than the depth of the annular tightening groove 25 in the axial direction of the bottle mouth 41 to ensure that there is a large contact area between the seal 2 and the container, thereby ensuring the sealing effect.

[0073] In one embodiment, the annular accommodating groove 23 includes a first annular groove 231 and a second annular groove 232 that are connected and communicate with each other. The first annular groove 231 and the second annular groove 232 are sequentially formed on the side surface of the second fixing portion 22 facing away from the inner cap 1. That is, the first annular groove 231 is formed on the side surface of the second fixing portion 22 facing away from the inner cap 1, and the second annular groove 232 is formed on the groove wall of the first annular groove 231. When the seal 2 is assembled with the container, the bottle mouth 41 of the container sequentially enters into the interiors of the first annular groove 231 and the second annular groove 232.

[0074] Among them, the width of the first annular groove 231 along the radial direction of the bottle mouth 41 is greater than that of the second annular groove 232, so that the first annular groove 231 with a larger width can provide a wider initial guiding path for the bottle mouth 41, making it easier for the bottle mouth 41 to align and enter the first annular groove 231, reducing the difficulty of aligning the bottle mouth 41 with the notch of the groove, and improving the assembly efficiency. Moreover, the larger width of the first annular groove 231 can accommodate bottle mouths 41 of different sizes, providing better assembly flexibility. The larger width of the first annular groove 231 can also better contact the bottle mouth 41 to form a preliminary seal, so as to further enhance the sealing performance through the second annular groove 232 subsequently.

[0075] Specifically, along the radial direction of the bottle mouth 41, the width of the first annular groove 231 is greater than the thickness of the bottle mouth 41, so that the first annular groove 231 can provide a wider initial guiding path for the bottle mouth 41, facilitating the bottle mouth 41 of the container to sequentially enter the interiors of the first annular groove 231 and the second annular groove 232.

[0076] Along the radial direction of the bottle mouth 41, the width of the second annular groove 232 is less than the thickness of the bottle mouth 41 to ensure that the bottle mouth 41 can be in close contact with the groove wall of the second annular groove 232, thereby ensuring the sealing effect between the container and the seal 2.

[0077] More specifically, the depth of the first annular groove 231 along the axial direction of the bottle mouth 41 is less than the depth of the second annular groove 232 along the axial direction of the bottle mouth 41 to achieve a more effective sealing and assembly process. That is, the shallower first annular groove 231 can provide a shallower initial guiding path for the bottle mouth 41, making it easier for the bottle mouth 41 to align and enter the first annular groove 231, and then ensuring a larger contact area between the bottle mouth 41 and the seal 2 through the deeper second annular groove 232, thereby ensuring the sealing performance.

[0078] In one embodiment, the inner cap 1 includes a fixed cap 11 and a fixed ring 12. The fixed ring 12 is arranged inside the fixed cap 11 and cooperates with the inner peripheral surface of the fixed cap 11 to enclose a sealing space. The first fixing portion 21 of the seal 2 is received in the sealing space, and the inner peripheral surface of the seal 2 abuts against the outer peripheral surface of the fixed ring 12, and the outer peripheral surface of the seal 2 is threadedly connected to the inner peripheral surface of the fixed cap 11 to simultaneously achieve the detachable connection and sealing between the seal 2 and the inner cap 1.

[0079] In one of the embodiments, the bottle cap assembly further includes an exterior part 3. The inner cap 1 and the seal 2 are both accommodated inside the exterior part 3 and are both connected to the exterior part 3. The exterior part 3 can accommodate and protect the inner cap 1 and the seal 2, preventing them from being damaged during transportation and use, and playing a role in beautifying the bottle cap assembly and enhancing the product image. In addition, in some embodiments, the seal 2 may have a claw portion that can engage with the bottle lip of the container. The exterior part 3 is sleeved outside the inner cap 1 and the seal 2 and contacts the outer sides of the inner cap 1 and the seal 2. When the bottle cap assembly is assembled on the container, the claw portion engages with the bottle lip of the container. When the bottle cap assembly is forcibly pulled out, the claw portion engaging with the bottle lip will drive the seal 2 to deform, causing the exterior part 3 to deform under the extrusion of the deformation, reminding the consumer that the bottle cap assembly has been opened, preventing packaging material recycling, etc., and achieving the purpose of preventing counterfeiting.

[0080] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered to be within the scope described in this specification.

[0081] The above-described embodiments only represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A bottle cap assembly for sealing a bottle mouth (41) of a container, characterized in that: The bottle cap assembly comprises an inner cap (1) and a sealing member (2); Along the axial direction of the bottle mouth (41), the sealing member (2) has a first fixing portion (21) and a second fixing portion (22), and the first fixing portion (21) and the second fixing portion (22) are jointly enclosed to form a liquid channel (24) for communicating with the bottle mouth (41); The first fixing portion (21) is inserted into the interior of the inner cover (1) and connected to the inner cover (1); The second fixing portion (22) is provided with an annular accommodating groove (23), the annular accommodating groove (23) being configured to accommodate the bottle mouth (41), and the groove wall of the annular accommodating groove (23) is in abutment with the bottle mouth (41).

2. The bottle cap assembly according to claim 1, characterized in that: The material of the inner cover (1) is a food-grade material, the material of the sealing member (2) is a food-grade material, and the sealing member (2) is elastic.

3. The bottle cap assembly according to claim 1, characterized in that: An annular tightening groove (25) communicating with the annular accommodating groove (23) is provided in the sealing member (2); along the radial direction of the bottle mouth (41), the width of the annular tightening groove (25) is smaller than the width of the annular accommodating groove (23).

4. The bottle cap assembly according to claim 1, characterized in that: The annular receiving groove (23) comprises a first annular groove (231) and a second annular groove (232) which are connected to each other. The first annular groove (231) and the second annular groove (232) are sequentially opened on the side of the second fixing portion (22) away from the inner cover (1), and along the radial direction of the bottle mouth (41), the width of the first annular groove (231) is greater than the width of the second annular groove (232).

5. The bottle cap assembly according to claim 4, characterized in that: Along the radial direction of the bottle mouth (41), the width of the first annular groove (231) is greater than the thickness of the bottle mouth (41).

6. The bottle cap assembly according to claim 4, characterized in that: Along the axial direction of the bottle mouth (41), the depth of the first annular groove (231) is smaller than the depth of the second annular groove (232).

7. The bottle cap assembly according to claim 1, characterized in that: The inner cover (1) comprises a fixed cover (11) and a fixed ring (12); the fixed ring (12) is arranged inside the fixed cover (11); the inner circumferential surface of the sealing member (2) abuts against the outer circumferential surface of the fixed ring (12); and the outer circumferential surface of the sealing member (2) is connected to the inner circumferential surface of the fixed cover (11).

8. The bottle cap assembly according to claim 1, characterized in that: The bottle cap assembly further comprises an appearance part (3), wherein the inner cap (1) and the sealing part (2) are both accommodated inside the appearance part (3) and are both connected to the appearance part (3).

9. A container, characterized in that: It comprises a bottle body (4) and a bottle cap assembly according to any one of claims 1 to 8, wherein the bottle cap assembly is arranged at a bottle mouth (41) of the bottle body (4).

10. The container according to claim 9, characterized in that The bottle mouth (41) and the bottle lip of the bottle body (4) are both located in the annular receiving groove (23) and are tightly matched with the inner circumferential surface of the annular receiving groove (23).

Images