Combined bottle cap and packaging bottle
By using a modular bottle cap design and a limiting structure, the problem of difficulty in opening small-mouth bottle caps has been solved, thus improving ease of use and cost-effectiveness.
Patent Information
- Application Number
- CN202520127692.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-01-17
AI Technical Summary
The caps of existing small-mouth packaging bottles are too small, making them more difficult to open and affecting ease of use.
The bottle cap adopts a modular design, with the inner and outer caps assembled separately. The outer cap is equipped with a first limiting structure and a second limiting structure. The inner cap is nested on the outside of the outer cap, and the limiting structure achieves a snap-fit connection, which increases the diameter of the bottle cap and simplifies the manufacturing process.
It improves the ease of use of the bottle cap, reduces processing difficulty and cost, while maintaining a sealing effect.
Smart Images
Figure CN223658799U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packaging technology, and more specifically, to a combined bottle cap and packaging bottle. Background Technology
[0002] As a commonly used form of product packaging, bottle packaging not only provides physical protection for products and extends their shelf life, but also demonstrates significant advantages in brand image building, user experience optimization, and environmental sustainability.
[0003] Bottles can be categorized by opening size into narrow-mouth and wide-mouth bottles. Narrow-mouth bottles, due to their superior sealing properties, help extend the shelf life of products and prevent leaks, and are often used for packaging liquids and short-shelf-life foods, such as yogurt. Wide-mouth bottles, on the other hand, have a larger opening, making it easier to access the contents directly by hand or with other tools, such as nuts.
[0004] However, existing small-mouth bottle designs are usually equipped with smaller caps, which increases the difficulty of opening the cap, causes inconvenience to users, and affects the ease of use of the cap. Utility Model Content
[0005] The purpose of this utility model is to provide a combined bottle cap and packaging bottle, which makes it easier for users to open the cap and thus facilitates use.
[0006] The embodiments of this utility model can be implemented as follows:
[0007] In a first aspect, this utility model provides a modular bottle cap, comprising:
[0008] The inner cap has threads on its inner periphery for mounting on the bottle body;
[0009] An outer cover, the diameter of which is larger than that of the inner cover, is nested outside the inner cover. The outer cover is provided with a first limiting structure and a second limiting structure, both of which are engaged with the inner cover. The first limiting structure restricts the rotation of the outer cover relative to the inner cover, and the second limiting structure restricts the axial movement of the outer cover relative to the inner cover.
[0010] In an optional embodiment, the outer cover includes a top plate, an outer ring platform, and an inner ring platform;
[0011] The outer ring platform is disposed on the outer periphery of the top plate and is connected to the top plate;
[0012] The diameter of the inner ring platform is smaller than the diameter of the outer ring platform, and the inner ring platform is disposed on the inner periphery of the inner ring platform and connected to the top plate. The diameter of the inner ring platform is larger than the diameter of the inner cover. The first limiting structure and the second limiting structure are disposed on the inner periphery of the inner ring platform, and the inner cover can be nested inside the inner ring platform.
[0013] In an optional embodiment, the first limiting structure is a first limiting boss disposed on the inner periphery of the inner ring platform, and the first limiting boss extends along the axial direction of the outer cover.
[0014] The outer periphery of the inner cover is provided with a first mating groove, which extends along the axial direction of the inner cover.
[0015] During the process of the inner cover being installed into the inner ring platform through the opening of the inner ring platform, the first limiting boss can be inserted into the first mating groove.
[0016] In an optional embodiment, there are multiple first limiting protrusions, and the multiple first limiting protrusions are spaced apart along the circumference of the inner ring platform on the inner sidewall of the inner ring platform, and the interval between two adjacent first limiting protrusions forms a second mating groove.
[0017] The outer periphery of the inner cover is provided with a plurality of second limiting protrusions at circumferential intervals. The second limiting protrusions extend along the circumferential direction of the inner cover, and the interval between two adjacent first limiting protrusions forms the first mating groove.
[0018] During the process of the inner cover being installed into the inner ring platform through the opening of the inner ring platform, the first limiting boss can be inserted into the first mating groove, and the second limiting boss can be inserted into the second mating groove.
[0019] In an optional embodiment, the second limiting structure is disposed on the inner periphery of the inner ring platform and located at the end of the first limiting structure away from the top plate, and is spaced apart from the first limiting structure. The outer periphery of the inner cover is provided with a snap-fit structure. After the inner cover is installed in the inner ring platform through the opening of the inner ring platform, the second limiting structure can snap into the snap-fit structure.
[0020] In an optional embodiment, the second limiting structure is a protrusion disposed on the inner periphery of the inner ring platform, the second limiting structure extends along the circumferential direction of the inner ring platform, and the snap-fit structure is a snap-fit ring platform disposed on the outer periphery of the outer cover.
[0021] During the process of the inner cover being installed into the inner ring platform through the opening of the inner ring platform, the second limiting structure can pass over the locking ring platform so that the second limiting structure engages with the locking ring platform.
[0022] In an optional embodiment, there are multiple second limiting structures, which are spaced apart along the circumference of the inner ring platform. A deformation groove is recessed at the end of the inner ring platform, located between two adjacent second limiting structures. The depth of the deformation groove is greater than the distance between the second limiting structure and the end of the inner ring platform. A chamfer is provided on the inner side of the end of the inner ring platform.
[0023] In an optional embodiment, a supporting rib is provided between the inner ring platform and the outer ring platform. There are multiple supporting ribs, which are spaced apart along the circumference of the outer cover. The supporting ribs are connected to the inner periphery of the outer ring platform, the outer periphery of the inner ring platform, and the inner side of the top plate.
[0024] Secondly, this utility model provides a packaging bottle, including a bottle body and a combined bottle cap as described in any of the foregoing embodiments;
[0025] The inner cap is threaded onto the bottle opening of the bottle body.
[0026] In an optional embodiment, the diameter of the outer cap is equal to the diameter of the bottle body.
[0027] The beneficial effects of the combined bottle cap and packaging bottle provided in this embodiment of the utility model include:
[0028] This application presents a modular bottle cap consisting of a separate inner cap and an outer cap. The inner cap has threads along its inner periphery, while the outer cap has a first limiting structure and a second limiting structure. The outer cap is nested inside the inner cap, and the first and second limiting structures achieve the positioning of the outer and inner caps. This design increases the diameter of the modular bottle cap, making it easier to open and tighten compared to a single inner cap. Furthermore, compared to a one-piece molded inner and outer cap, the manufacturing process is simpler and the cost is lower. Attached Figure Description
[0029] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0030] Figure 1 This is a schematic diagram of the structure of the packaging bottle provided in this embodiment;
[0031] Figure 2 This is a partial cross-sectional view of the packaging bottle provided in this embodiment;
[0032] Figure 3 This is a schematic diagram of the inner cap structure of the combined bottle cap provided in this embodiment;
[0033] Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle;
[0034] Figure 5 This is a schematic diagram of the outer cap structure of the combined bottle cap provided in this embodiment;
[0035] Figure 6 This is a partial cross-sectional view of the combined bottle cap provided in this embodiment.
[0036] Icons: 100 - Modular bottle cap; 110 - Inner cap; 111 - First mating groove; 113 - Second limiting boss; 115 - Snap-fit structure; 117 - Snap-fit ring platform; 130 - Outer cap; 131 - First limiting structure; 133 - Second limiting structure; 135 - Top plate; 137 - Outer ring platform; 139 - Inner ring platform; 141 - First limiting boss; 143 - Second mating groove; 145 - Boss; 146 - Deformation groove; 147 - Chamfer; 148 - Supporting rib; 300 - Packaging bottle; 310 - Bottle body. Detailed Implementation
[0037] Existing small-mouth bottle designs typically come with smaller caps, which increases the difficulty of opening the cap, causing inconvenience to users and affecting the ease of use of the cap.
[0038] To address the aforementioned problems, this utility model provides a combined bottle cap and packaging bottle, which can increase the diameter of the bottle cap for easy opening and tightening while also being easy to process, thereby improving the problem of the difficulty in opening the cap of existing small packaging bottles.
[0039] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0040] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0041] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0042] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0043] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.
[0044] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.
[0045] The following detailed description of the overall structure, working principle, and technical effects of the combined bottle cap and packaging bottle provided by this utility model, through embodiments and in conjunction with the accompanying drawings, is a practical example.
[0046] Please refer to Figure 1 and Figure 2 In this embodiment, the packaging bottle 300 includes a bottle body 310 and a modular bottle cap 100. The bottle opening of the bottle body 310 is a small opening, which is formed by the top of the bottle body 310 narrowing to form a small opening through a variable cross-section design. The modular bottle cap 100 is installed at the bottle opening of the bottle body 310 by means of threads.
[0047] The packaging bottle 300 can be used to package dairy products such as yogurt, thus achieving better sealing. Of course, in some embodiments of this application, the packaging can also be used to package other liquid or powder products.
[0048] Please refer to Figures 1 to 6In this embodiment, the combined bottle cap 100 includes an inner cap 110 and an outer cap 130. The inner periphery of the inner cap 110 is provided with threads for installation on the bottle body 310. The internal threads of the inner cap 110 can engage with the external threads of the bottle body 310 at the bottle opening to seal the bottle opening. The diameter of the outer cap 130 is larger than the diameter of the inner cap 110. The outer cap 130 is nested outside the inner cap 110. The outer cap 130 is provided with a first limiting structure 131 and a second limiting structure 133. Both the first limiting structure 131 and the second limiting structure 133 are engaged with the inner cap 110. The first limiting structure 131 restricts the rotation of the outer cap 130 relative to the inner cap 110, so that rotating the outer cap 130 can drive the inner cap 110 to rotate. The second limiting structure 133 restricts the axial movement of the outer cap 130 relative to the inner cap 110, thereby preventing the outer cap 130 from falling off.
[0049] In this embodiment, the combined bottle cap is configured as a separate inner cap 110 and an outer cap 130. A first limiting structure 131 and a second limiting structure 133 are provided on the outer cap 130, and the outer cap 130 is nested outside the inner cap 110, allowing the first limiting structure 131 and the second limiting structure 133 to engage with the inner cap 110. This increases the diameter of the combined bottle cap 100. Compared to a bottle with only a single inner cap 110, the combined bottle cap 100 is easier for users to unscrew and tighten. Furthermore, compared to a bottle where the inner cap 110 and outer cap 130 are integrally formed, the manufacturing process is simpler and the cost is lower.
[0050] Existing bottle cap manufacturing methods typically involve injection molding. However, if the inner cap 110 and outer cap 130 are molded as a single unit, the internal threads and other auxiliary structures result in a complex structure, increased manufacturing difficulty, and higher material waste, leading to higher costs. In this embodiment, the inner cap 110 and outer cap 130 are manufactured separately and then assembled later. This significantly reduces the manufacturing and assembly difficulty of both parts, thereby lowering both manufacturing and overall costs.
[0051] Please refer to Figures 1 to 6 In this embodiment, the outer cover 130 includes a top plate 135, an outer ring platform 137, and an inner ring platform 139. The top plate 135, the outer ring platform 137, and the inner ring platform 139 are integrally formed. The outer ring platform 137 is disposed on the outer periphery of the top plate 135 and connected to the top plate 135. The diameter of the inner ring platform 139 is smaller than the diameter of the outer ring platform 137, and the inner ring platform 139 is disposed on the inner periphery of the inner ring platform 139 and connected to the top plate 135. The inner ring platform 139 and the outer ring platform 137 are concentrically arranged. The diameter of the inner ring platform 139 is larger than the diameter of the inner cover 110. A first limiting structure 131 and a second limiting structure 133 are disposed on the inner periphery of the inner ring platform 139, and the inner cover 110 can be nested within the inner ring platform 139.
[0052] In this embodiment, by setting concentric and spaced inner ring platform 139 and outer ring platform 137, the gap between the inner ring platform 139 and outer ring platform 137 can reduce the amount of material used, thereby reducing costs.
[0053] In this embodiment, the height of the inner ring platform 139 is less than the height of the outer ring platform 137, so that the outer ring platform 137 can abut against the bottle body 310, thereby making the bottle more aesthetically pleasing.
[0054] Please refer to Figures 1 to 6 Furthermore, the first limiting structure 131 is a first limiting boss 141 disposed on the inner periphery of the inner ring platform 139, and the first limiting boss 141 extends along the axial direction of the outer cover 130. The outer periphery of the inner cover 110 is provided with a first mating groove 111, and the first mating groove 111 extends along the axial direction of the inner cover 110. During the process of the inner cover 110 being installed into the inner ring platform 139 through the opening of the inner ring platform 139, the first limiting boss 141 can be inserted into the first mating groove 111.
[0055] In this embodiment, by providing a first limiting boss 141 and a first mating groove 111, the first limiting boss 141 can be inserted into the first mating groove 111 when the inner cover 110 is fitted into the inner ring platform 139, thereby restricting relative rotation between the two. Furthermore, since the first limiting boss 141 and the first mating groove 111 are mutually fitted and complementary, no additional material is required.
[0056] Please refer to Figures 1 to 6 Furthermore, there are multiple first limiting protrusions 141, which are spaced apart circumferentially on the inner sidewall of the inner ring platform 139. The gap between two adjacent first limiting protrusions 141 forms a second mating groove 143. Multiple second limiting protrusions 113 are spaced apart circumferentially on the outer periphery of the inner cover 110. The second limiting protrusions 113 extend circumferentially along the inner cover 110, and the gap between two adjacent first limiting protrusions 141 forms a first mating groove 111. During the process of installing the inner cover 110 into the inner ring platform 139 through the opening, the first limiting protrusions 141 can be inserted into the first mating groove 111, and the second limiting protrusions 113 can be inserted into the second mating groove 143.
[0057] In this embodiment, a first limiting boss 141 and a second mating groove 143 are provided on the inner ring platform 139 of the outer cover 130, while a first mating groove 111 and a second limiting boss 113 are provided on the outer periphery of the inner cover 110. In this way, the first limiting boss 141 and the first mating groove 111 are engaged, and the second limiting boss 113 and the second mating groove 143 are engaged, thereby improving the meshing ability of the inner cover 110 and the outer cover 130.
[0058] It should be noted that the first limiting boss 141 is equivalent to the internal spline set in the inner ring platform 139, while the second limiting boss 113 is equivalent to the external spline set in the outer periphery of the inner cover 110, which is achieved by the engagement of the internal spline and the external spline.
[0059] Please refer to Figures 1 to 6 In this embodiment, the second limiting protrusions 113 are equally spaced. The first limiting protrusions 141 are grouped into multiple groups, with each group having five second limiting protrusions 113. These five second limiting protrusions 113 are equally spaced, so that the inner cover 110 can be fitted into the outer cover 130 at any angle.
[0060] In this embodiment, the second limiting structure 133 is disposed on the inner periphery of the inner ring platform 139 and is located at the end of the first limiting structure 131 away from the top plate, and is spaced apart from the first limiting structure 131. The outer periphery of the inner cover 110 is provided with a snap-fit structure 115. After the inner cover 110 is installed in the inner ring platform 139 through the opening of the inner ring platform 139, the second limiting structure 133 can snap into the snap-fit structure 115.
[0061] In this embodiment, by setting a second limiting structure 133 and a snap-fit structure 115 on the inner cover 110, the two can be better snapped together. After the two are fitted together, the snap-fit can prevent the outer cover 130 from detaching from the inner cover 110.
[0062] Please refer to Figures 1 to 6 Furthermore, the second limiting structure 133 is a protrusion 145 disposed on the inner periphery of the inner ring platform 139, and the second limiting structure 133 extends circumferentially along the inner ring platform 139. The locking structure 115 is a locking ring platform 117 disposed on the outer periphery of the outer cover 130. During the process of the inner cover 110 being installed into the inner ring platform 139 through the opening of the inner ring platform 139, the second limiting structure 133 can pass over the locking ring platform 117 so that the second limiting structure 133 engages with the locking ring platform 117.
[0063] In this embodiment, the second limiting structure 133 is set as a boss 145, and the snap-fit structure 115 is set as a snap-fit ring 117. In this way, the snap-fit between the two can be achieved by snap-fitting the snap-fit ring 117 and the boss 145, without increasing the processing difficulty.
[0064] Furthermore, there are multiple second limiting structures 133, which are spaced apart along the circumference of the inner ring platform 139. A deformation groove 146 is recessed at the end of the inner ring platform 139 and between two adjacent limiting structures. The depth of the deformation groove 146 is greater than the distance between the second limiting structure 133 and the end of the inner ring platform 139. A chamfer 147 is provided on the inner side of the end of the inner ring platform 139.
[0065] In this embodiment, a deformation groove 146 is provided so that when the snap-fit ring platform 117 and the boss 145 are snapped together, the deformation groove 146 can deform, thereby allowing the boss 145 to pass over the snap-fit ring platform 117. The chamfer 147 also allows the inner cover 110 to be fitted into the inner ring platform 139.
[0066] Please refer to Figures 1 to 6 In this embodiment, a support rib 148 is provided between the inner ring platform 139 and the outer ring platform 137. There are multiple support ribs 148, which are arranged at intervals along the circumference of the outer cover 130. The support ribs 148 are connected to the inner periphery of the outer ring platform 137, the outer periphery of the inner ring platform 139, and the inner side of the top plate 135.
[0067] In this embodiment, the supporting ribs 148 are provided to increase the mechanical strength of the outer ring platform 137, so that the outer ring platform 137 will not deform when the bottle cap is screwed on.
[0068] In this embodiment, the outer periphery of the outer ring platform 137 is provided with a texture to increase friction, thereby facilitating opening the lid. This texture may be raised ribs arranged at intervals along the outer periphery of the outer ring platform 137.
[0069] In this embodiment, the diameter of the outer cap 130 is equal to the diameter of the bottle body 310. This makes the overall cylindrical shape more aesthetically pleasing when the cap is attached to the bottle body 310.
[0070] In summary, this embodiment sets the combined bottle cap as a separate inner cap 110 and outer cap 130. A first limiting structure 131 and a second limiting structure 133 are provided on the outer cap 130, and the outer cap 130 is nested outside the inner cap 110, allowing the first limiting structure 131 and the second limiting structure 133 to engage with the inner cap 110. This increases the diameter of the combined bottle cap 100. Compared to a bottle with only a single inner cap 110, the combined bottle cap 100 is easier for users to unscrew and tighten. Furthermore, compared to a bottle where the inner cap 110 and outer cap 130 are integrally formed, the manufacturing process is simpler and the cost is lower.
[0071] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.
Claims
1. A modular bottle cap, characterized in that, include: The inner cap (110) has threads on its inner periphery for mounting on the bottle body (310); An outer cover (130) has a diameter larger than that of the inner cover (110). The outer cover (130) is nested outside the inner cover (110). The outer cover (130) is provided with a first limiting structure (131) and a second limiting structure (133). Both the first limiting structure (131) and the second limiting structure (133) are engaged with the inner cover (110). The first limiting structure (131) can restrict the outer cover (130) from rotating relative to the inner cover (110), and the second limiting structure (133) can restrict the outer cover (130) from moving axially relative to the inner cover (110).
2. The combined bottle cap according to claim 1, characterized in that, The outer cover (130) includes a top plate (135), an outer ring platform (137), and an inner ring platform (139); The outer ring platform (137) is disposed on the outer periphery of the top plate (135) and connected to the top plate (135); The diameter of the inner ring platform (139) is smaller than the diameter of the outer ring platform (137), and the inner ring platform (139) is disposed on the inner periphery of the inner ring platform (139) and connected to the top plate (135). The diameter of the inner ring platform (139) is larger than the diameter of the inner cover (110). The first limiting structure (131) and the second limiting structure (133) are disposed on the inner periphery of the inner ring platform (139), and the inner cover (110) can be nested inside the inner ring platform (139).
3. The combined bottle cap according to claim 2, characterized in that, The first limiting structure (131) is a first limiting boss (141) disposed on the inner periphery of the inner ring platform (139), and the first limiting boss (141) extends along the axial direction of the outer cover (130); The outer periphery of the inner cover (110) is provided with a first mating groove (111), which extends along the axial direction of the inner cover (110). During the process of the inner cover (110) being installed into the inner ring platform (139) through the opening of the inner ring platform (139), the first limiting boss (141) can be inserted into the first mating groove (111).
4. The combined bottle cap according to claim 3, characterized in that, There are multiple first limiting protrusions (141), and multiple first limiting protrusions (141) are arranged at intervals along the circumference of the inner ring platform (139) on the inner sidewall of the inner ring platform (139). The interval between two adjacent first limiting protrusions (141) forms a second mating groove (143). The outer periphery of the inner cover (110) is provided with a plurality of second limiting protrusions (113) at intervals along the circumferential direction. The second limiting protrusions (113) extend along the circumferential direction of the inner cover (110), and the interval between two adjacent first limiting protrusions (141) forms the first mating groove (111). During the process of the inner cover (110) being installed into the inner ring platform (139) through the opening of the inner ring platform (139), the first limiting boss (141) can be inserted into the first mating groove (111), and the second limiting boss (113) can be inserted into the second mating groove (143).
5. The combined bottle cap according to any one of claims 2-4, characterized in that, The second limiting structure (133) is disposed on the inner periphery of the inner ring platform (139) and located at the end of the first limiting structure (131) away from the top plate (135), and is spaced apart from the first limiting structure (131). The outer periphery of the inner cover (110) is provided with a snap-fit structure (115). After the inner cover (110) is installed in the inner ring platform (139) through the opening of the inner ring platform (139), the second limiting structure (133) can snap into the snap-fit structure (115).
6. The combined bottle cap according to claim 5, characterized in that, The second limiting structure (133) is a boss (145) provided on the inner periphery of the inner ring platform (139). The second limiting structure (133) extends along the circumference of the inner ring platform (139). The snap-fit structure (115) is a snap-fit ring platform (117) provided on the outer periphery of the outer cover (130). During the process of the inner cover (110) being installed into the inner ring platform (139) through the opening of the inner ring platform (139), the second limiting structure (133) can pass over the snap-fit ring platform (117) so that the second limiting structure (133) snaps into the snap-fit ring platform (117).
7. The combined bottle cap according to claim 6, characterized in that, There are multiple second limiting structures (133), and the multiple second limiting structures (133) are arranged at intervals along the circumference of the inner ring platform (139). At the end of the inner ring platform (139), and at the position between two adjacent second limiting structures (133), a deformation groove (146) is recessed. The depth of the deformation groove (146) is greater than the distance between the second limiting structure (133) and the end of the inner ring platform (139). A chamfer (147) is provided on the inner side of the end of the inner ring platform (139).
8. The combined bottle cap according to any one of claims 2-4, characterized in that, A supporting rib (148) is provided between the inner ring platform (139) and the outer ring platform (137). There are multiple supporting ribs (148) arranged at intervals along the circumference of the outer cover (130). The supporting ribs (148) are connected to the inner periphery of the outer ring platform (137), the outer periphery of the inner ring platform (139), and the inner side of the top plate (135).
9. A packaging bottle, characterized in that, Includes a bottle body (310) and a combined bottle cap as described in any one of claims 1-8; The inner cap (110) is threaded onto the bottle opening of the bottle body (310).
10. The packaging bottle according to claim 9, characterized in that, The diameter of the outer cap (130) is equal to the diameter of the bottle body (310).