Bottle cap without pull ring

Abstract

The invention belongs to the technical field of bottle caps, and particularly relates to a pull-ring-free bottle cap which comprises a bottom cap and an upper cap. The bottom cover covers the bottle opening, an opening is formed in the bottom cover, the opening is communicated with the interior of the bottle, the upper cover covers the bottom cover, a first sealing piece is arranged on the upper cover, a second sealing piece is arranged on the bottom cover, when the upper cover and the bottom cover are arranged in a covering mode, the upper cover can cover the bottom cover, and the first sealing piece and the second sealing piece are matched with each other to form at least one layer of abutting face to seal the opening; according to the product, the first sealing piece and the second sealing piece are arranged to be matched with each other, so that secondary sealing after unsealing can be achieved, the sealing and fresh-keeping effects are very good, the liquid leakage situation is avoided, meanwhile, the reinforcing assembly is arranged, the bottle opening, the bottom cover and the upper cover form a whole, stress is increased, and the product is more resistant to collision.

Description

Technical Field

[0001] This invention belongs to the field of bottle cap technology, and particularly relates to a pull-ring-less bottle cap. Background Technology

[0002] Packaging bottles are common products on the market. Currently, most packaging bottles have various sealing methods for their caps. Common sealing methods include pull-ring seals. Although pull-ring seals are widely used, they are prone to leakage due to the thin rubber layer on the sealing ring. This is especially true with the popularity of online shopping, where rough handling during transportation can easily lead to leakage and product quality issues. In addition, some pull-ring seals have thicker rubber layers to prevent leakage, but the pull ring is easy to break when tearing it, and it is difficult to open the liquid outlet, resulting in a poor consumer experience. Furthermore, the resealing effect after the pull ring is torn off is poor, and there is no preservation effect.

[0003] Another method involves using a sealing gasket inside the lid for sealing. While this solves the sealing problem, it makes it more inconvenient for consumers to open the lid and makes it easier to get liquid on their hands. Summary of the Invention

[0004] The purpose of this invention is to provide a pull-ring-free bottle cap, which aims to solve the technical problems of existing bottle cap technology, such as easy leakage under external force, poor secondary sealing effect, no preservation effect, inconvenient pull-ring tearing and easy breakage of the pull-ring, and easy liquid getting on the hands when opening the cap.

[0005] To achieve the above objectives, this invention provides a pull-ring-less bottle cap, comprising a bottom cap and a top cap. The bottom cap is detachably positioned at the bottle opening, with an opening in the center communicating with the interior of the bottle. The top cap is positioned on the bottom cap, and has a first sealing element on it. The bottom cap has a second sealing element on it. When the top cap and bottom cap are in place, the top cap covers the bottom cap. The first and second sealing elements cooperate to form at least one contact surface to seal the opening. The bottom cap has a reinforcing component, which includes a snap-fit ​​groove. The bottle opening can pass through the snap-fit ​​groove. At the horizontal position of the bottle opening, from the inside out, the bottle opening passes through the reinforcing component, the bottle opening, the reinforcing component, and the top cap in sequence. The bottle opening, bottom cap, and top cap form a single unit to increase stress resistance and improve impact resistance.

[0006] Optionally, the second seal is disposed around the opening, and the second seal is funnel-shaped with open ends, gradually increasing in size from the opening outwards. The first seal is disposed corresponding to the second seal, and the first seal can be inserted into the second seal to form at least one abutment surface to seal the opening.

[0007] Optionally, a groove is provided along the opening, the top end of the first seal can be engaged in the groove, the top contact surface of the first seal abuts and seals with the contact surface of the groove, the second seal is provided with a first protrusion, and the first seal is provided with a second protrusion corresponding to the position of the first protrusion, when the first seal is inserted into the second seal, the first protrusion and the second protrusion cooperate to abut and seal.

[0008] Optionally, the upper cover includes an upper rotating cover and a bottom shielding ring; a tear strip is provided between the rotating cover and the shielding ring, the tear strip is detachably connected to the rotating cover and the shielding ring, and the tear strip is used to seal and prevent the rotating cover from rotating.

[0009] Optionally, when the rotating cap is screwed onto the bottom cap, the bottom edge of the rotating cap tightly abuts and seals against the first platform on the bottom cap. The advantage of this design is that it serves as the final sealing layer in the multi-layered sealing system between the bottom and top caps, and also as the final layer of preservation during multi-layered preservation for consumers. Furthermore, it provides a dustproof function, preventing external dust from entering the bottle through the bottom cap opening and contaminating the contents.

[0010] Optionally, the reinforcement component further includes the first platform and a baffle disposed on the first platform. The upper cover has a first thread inside, and the baffle has a second thread. The first thread and the second thread cooperate with each other, so that the upper cover can be rotatably disposed on the bottom cover.

[0011] Optionally, the bottom edge of the rotating cover extends circumferentially downwards, and the downwards cover can cover the first platform. The downwards cover is used to prevent dust from entering the first platform and the baffle.

[0012] Optionally, a reflux groove is formed between the baffle, the second seal and the first platform. The end of the second seal away from the opening is provided with a circumferential arc-shaped lower edge. When poured, excess liquid will flow into the reflux groove from the arc-shaped lower edge.

[0013] Optionally, the upper cover is further provided with a protective cover, which is placed on the upper cover and is used to increase drop protection.

[0014] Optionally, the reinforcing component includes a snap-fit ​​groove; the bottle opening can be inserted into the snap-fit ​​groove, a first snap-fit ​​protrusion is provided at the entrance of the snap-fit ​​groove, and a second snap-fit ​​protrusion is provided at the bottle opening. When the bottle opening is placed in the snap-fit ​​groove, the first snap-fit ​​protrusion and the second snap-fit ​​protrusion are securely engaged; the reinforcing component further includes a third snap-fit ​​protrusion; the third snap-fit ​​protrusion is provided on the bottom cover, and a fourth snap-fit ​​protrusion is provided on the shielding ring. When the top cover is placed on the bottom cover, the third snap-fit ​​protrusion and the fourth snap-fit ​​protrusion are securely engaged.

[0015] Compared with the prior art, the above-mentioned technical solutions of the pull-ringless bottle cap provided in the embodiments of the present invention have at least one of the following technical effects: This invention eliminates the pull tab, fundamentally solving the problems of thin rubber sections on pull tabs leading to easy oil leakage during transportation, and thick rubber sections causing pull tabs to break easily when torn, making it difficult to open the liquid outlet. This addresses consumer confusion and pain points, enhancing the user experience. The combination of a first and second sealing element allows for secondary sealing after opening, providing excellent sealing and preservation, preventing leakage. Reinforcing components integrate the bottle opening, bottom cap, and top cap into a single unit, increasing strength and impact resistance. The rotating cap makes opening simple and prevents liquid from getting on hands. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the present invention.

[0018] Figure 2 This is an exploded view of part of the structure of the present invention.

[0019] Figure 3 This is an exploded view of a portion of the structure of the present invention from another angle.

[0020] Figure 4 This is a schematic cross-sectional view of part of the structure of the present invention.

[0021] Figure 5 This is a schematic diagram of an exploded cross-section of part of the structure of the present invention.

[0022] Figure 6 This is a schematic diagram of the cross-sectional structure of the bottle opening inserted in this invention.

[0023] Figure 7This is a schematic diagram of the protective cover and top cover structure of the present invention.

[0024] The following are the labeling elements in the figure: 100. Top cover; 110. First seal; 111. Second boss; 120. Rotating cover; 121. Lower hanging element; 130. Shielding ring; 140. Tear strip; 141. Tear block; 142. Notch; 150. Reinforcing rib; 160. Assembly groove; 170. First thread; 180. Second mating protrusion; 200. Bottom cover; 210. Opening; 220. Second seal; 221. Groove; 222. First boss; 223. Arc-shaped lower edge; 224. Protrusion; 230. Reinforcing component; 231. Snap-fit ​​groove; 232. First platform; 233. Baffle; 2331. Second thread; 234. First snap-fit ​​protrusion; 235. Second snap-fit ​​protrusion; 236. Third snap-fit ​​protrusion; 237. Fourth snap-fit ​​protrusion; 238. Second platform; 240. Return channel; 250. Straight frame; 300. Bottle neck; 310. Third platform; 400. Protective cover; 410. Protective cover protrusion; 420. First mating protrusion; 430. Friction protrusion. Detailed Implementation

[0025] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain embodiments of the present invention, and should not be construed as limiting the present invention.

[0026] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention 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. Therefore, they should not be construed as limitations on the present invention.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of the present invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] In the embodiments of the present invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention according to the specific circumstances.

[0029] In one embodiment of the present invention, according to Figure 1-7 As shown, the device includes a bottom cap 200 and a top cap 100. The bottom cap 200 is detachably attached to the bottle opening 300. The detachable bottom cap 200 can be directly pressed or threaded onto the bottle opening 300. The bottom cap 200 has an opening 210 in the center, which communicates with the inside of the bottle. The top cap 100 is placed on top of the bottom cap 200. The top cap 100 has a first sealing element 110, and the bottom cap 200 has a second sealing element 220. When the top cap 100 and the bottom cap 200 are in place, the top cap 100 can cover the bottom cap 200. The sealing element 110 and the second sealing element 220 cooperate to form at least one abutment surface to seal the opening 210; a reinforcing component 230 is provided on the bottom cover 200, the reinforcing component 230 includes a snap-fit ​​groove 231; the bottle mouth 300 can be inserted into the snap-fit ​​groove 231, and at the level of the bottle mouth 300, from the inside to the outside, the reinforcing component 230, the bottle mouth 300, the reinforcing component 230 and the top cover 100 are sequentially arranged, and the bottle mouth 300, the bottom cover 200 and the top cover 100 form a whole to increase the force and make it more impact resistant.

[0030] Specifically, this invention eliminates the pull ring, fundamentally solving the problem of thin adhesive areas on pull rings leading to oil leakage, and the inability to open the liquid outlet when the adhesive area is thickened, which makes the pull ring prone to breakage. This often necessitates cutting the pull ring with a blade to open the outlet. The absence of a pull ring completely resolves this consumer frustration. Furthermore, the coordinated use of the first sealing element 110 and the second sealing element 220 not only achieves a secure seal without a pull ring, preserving the contents and preventing spoilage, but also provides excellent secondary sealing and freshness preservation after opening, preventing leakage and ensuring consistent quality after each use. It can reseal immediately, thus solving the long-standing problem of sealing the bottle opening before first use and the inability to reseal the bottle opening after use for preservation. It also upgrades the user experience without changing traditional usage habits. At the same time, the reinforcement component 230 integrates the bottle opening 300, bottom cap 200 and top cap 100 into a whole to increase the strength and impact resistance, thereby making the seal tighter again. It can withstand various rough handling during express delivery and ensure that the risk of goods being transported is minimized. The rotating cap 120 makes opening the cap simple, retains traditional consumer usage habits, and prevents liquid from getting on hands.

[0031] Furthermore, a reinforcing rib 150 is provided on the inner top wall of the top cover 100. The reinforcing rib 150 is used to increase the structural strength of the top cover 100, further reducing the risk of impact during logistics and express delivery. When the first sealing member 110 is inserted into the second sealing member 220, the end of the second sealing member 220 can abut against the inner top wall of the top cover 100. It can be understood that the end of the second sealing member 220 may not abut against the inner top wall of the top cover 100; both methods are within the protection scope of this patent. When a reinforcing rib 150 is also provided on the inner top wall of the top cover 100, the end of the second sealing member 220 abuts against the outside of the reinforcing rib 150. The reinforcing rib 150 can play a certain role in preventing the liquid inside the bottle from flowing out. The height of the reinforcing rib 150 can be set slightly higher. When multiple reinforcing ribs 150 are provided, the end of the second sealing member 220 abuts between two layers of the reinforcing ribs 150.

[0032] Furthermore, the upper cap 100 can cover the bottom cap 200, and the bottom cap 200 covers part of the bottle opening 300. This arrangement makes the upper cap 100, the bottom cap 200, and the bottle opening 300 a single unit, sharing the force and improving the impact resistance of the bottle cap. This reduces the risk of deformation during rough transportation, thus preventing leakage. After repeated testing, the overall structure of this invention has demonstrated a strong ability to reduce the risk of rough transportation.

[0033] In another embodiment of the invention, according to Figure 2-5As shown, the second sealing element 220 is arranged in a ring around the opening 210. The second sealing element 220 is funnel-shaped with both ends open, and the opening 210 gradually increases in size from the opening 210 outwards. This structure allows for smoother pouring of contents. The first sealing element 110 is arranged corresponding to the second sealing element 220, and the first sealing element 110 can be inserted into the second sealing element 220 to form at least one abutment surface to seal the opening 210. A groove 221 is provided along the opening 210, and the top of the first sealing element 110 can be engaged in the groove 221. The top contact surface of the first sealing element 110 abuts and seals with the contact surface of the groove 221. The groove 221 is cleverly designed to ensure a very tight seal between the top contact surface of the first sealing element 110 and the contact surface of the groove 221. This is a crucial part of the pull-ring bottle cap, ensuring that the bottle cap can be tightly sealed when the opening 210 is open, thus ensuring that the contents of the bottle are sealed, preserved, and protected from spoilage. The second sealing element 220 is provided with a first protrusion 222, and the first sealing element 110 is provided with a second protrusion 111 corresponding to the position of the first protrusion 222. When the first sealing element 110 is inserted into the second sealing element 220, the first protrusion 222 and the second protrusion 111 cooperate with each other to seal. This structure further ensures the sealing function of the pull ring bottle cap in the normally open state of the opening 210.

[0034] Specifically, the first sealing element 110 is cylindrical and can be inserted into the second sealing element 220. The two elements partially abut against each other, forming multiple layers of contact surfaces for sealing. This ensures that the liquid in the bottle is contained within the bottle and the cavity of the first sealing element 110, preventing leakage to the outside. Further, we mainly divide the contact surfaces into two levels. The first level contact surface is where the top of the first sealing element 110 can be engaged in the groove 221, with the top contact surface of the first sealing element 110 abutting and sealing against the contact surface of the groove 221. The second level contact surface is where the first boss 222 and the second boss 111 cooperate to abut and seal.

[0035] Furthermore, the bottom of the first seal 110 has a beveled transition, which makes it easier and smoother to insert the first seal 110 into the second seal 220. This structure ensures that the insertion of the first seal 110 and the second seal 220 is very smooth, and can be completed smoothly even when the upper and lower covers are tilted.

[0036] In another embodiment of the invention, according to Figure 2-6As shown, the upper cover 100 includes an upper rotating cap 120 and a bottom retaining ring 130. A tear strip 140 is provided between the rotating cap 120 and the retaining ring 130. The tear strip 140 is detachably connected to the rotating cap 120 and the retaining ring 130. The tear strip 140 is used to seal and prevent the rotating cap 120 from rotating when not in use. This structure ensures that the first sealing element 110 and the second sealing element 220 are in close contact and do not loosen. When the rotating cap 120 is screwed onto the bottom cover 200, the bottom edge of the rotating cap 120 is tightly abutted and sealed with the first platform 232 on the bottom cover 200. This structure further ensures the sealing function of the pull-ring bottle cap in the normally open state of the opening 210. The bottom edge of the rotating cap 120 extends circumferentially with a hanging loop 121, which covers the first platform 232. The hanging loop 121 is used to prevent dust from entering the first platform 232 and the baffle 233. This structure ensures that the contents of the bottle are not contaminated before and after the first use.

[0037] Specifically, firstly, the bottom edge of the rotating cap 120 tightly abuts against the first platform 232 on the bottom cap 200 to form a third contact surface, which also prevents liquid from leaking out of the cap, forming a three-level protection in conjunction with the first and second contact surfaces. Secondly, the tear strip 140, the shielding ring 130, and the hanging bracket 121 of the rotating cap 120 are provided to minimize the exposed area, prevent dust from entering, and prevent dirt from accumulating. Furthermore, the hanging bracket 121 of the rotating cap 120 can completely cover most of the area of ​​the bottom cap 200, preventing dust from entering the first platform 232 and the baffle 233.

[0038] This invention provides a good sealing effect without a pull ring structure, and is also resistant to drops, impacts, and rough transportation.

[0039] Furthermore, the tear strip 140 is provided with a tear block 141, and the edge of the cover 100 is provided with a notch 142. The tear block 141 is precisely engaged with the notch 142. This structure not only prevents the cover 100 from being rotated open during transportation, but also serves as an anti-theft function, preventing the contents of the bottle from being deliberately damaged before opening. If the tear strip is damaged, it proves that it has been used.

[0040] Furthermore, the reinforcing component 230 includes a snap-fit ​​groove 231; the bottle mouth 300 can be inserted into the snap-fit ​​groove 231, a first snap-fit ​​protrusion 234 is provided at the entrance of the snap-fit ​​groove 231, and a second snap-fit ​​protrusion 235 is provided at the bottle mouth 300. When the bottle mouth 300 is placed in the snap-fit ​​groove 231, the first snap-fit ​​protrusion 234 and the second snap-fit ​​protrusion 235 are securely snapped together; the reinforcing component 230 also includes a third snap-fit ​​protrusion 236; the third snap-fit ​​protrusion 236 is provided on the bottom cover 200, and a fourth snap-fit ​​protrusion 237 is provided on the shielding ring 130. When the top cover 100 is placed on the bottom cover 200, the third snap-fit ​​protrusion 236 and the fourth snap-fit ​​protrusion 237 are securely snapped together. Specifically, the second snap-fit ​​protrusion 235 is located above the first snap-fit ​​protrusion 234, and the third snap-fit ​​protrusion 236 is located above the fourth snap-fit ​​protrusion 237. This allows the bottle neck 300 to connect with the bottom cap 200 after snapping, making it difficult to pull out the bottom cap 200. The bottom cap 200 is also connected with the top cap 100, making it difficult to pull out the top cap 100. At the same time, the above structure allows the top cap 100, the bottom cap 200, and the bottle neck 300 to form an inseparable whole, which increases the stress and makes it more impact-resistant. In the event of an impact, the force can be dispersed, making it less likely to deform and cause leakage. This structure further strengthens the seal and can withstand various rough handling during express delivery, ensuring that the risk of goods being transported is minimized.

[0041] Furthermore, the bottom edge of the rotating cover 120 is tightly sealed with the first platform 232 on the bottom cover 200 to form a third contact surface. This structure not only provides a third level of sealing, but also allows the supporting force of the rotating cover 120 on the top cover to be applied to the first platform 232. During violent transportation, it directly bears the impact force, reducing the stress on the first seal 110 and the second seal 220, and making the insertion and sealing effect of the first seal 110 and the second seal 220 better. Meanwhile, the bottom edge of the rotating cap 120 tightly abuts against the first platform 232 on the bottom cap 200. The reinforcing component 230 includes a snap-fit ​​groove 231; the bottle mouth 300 can be inserted into the snap-fit ​​groove 231. This structure ensures that the bottle mouth 300 directly abuts against the snap-fit ​​groove 231. In this way, the bottom edge of the rotating cap 120, the first platform 232 on the bottom cap 200, and the bottle mouth 300 directly contact and bear force, forming a whole. During rough transportation, it directly bears the impact force, minimizing the impact on the top cap. It also reduces the force on the first seal 110 and the second seal 220, making the insertion and sealing effect of the first seal 110 and the second seal 220 better. These structures are all used to increase the force-bearing capacity and make it more impact-resistant. In the event of an impact, it can disperse the force, making it less likely to deform and cause leakage. This structure further strengthens the seal and makes it tighter, while also being able to withstand various rough transportation by express delivery, ensuring that the risk of goods transportation is minimized.

[0042] Furthermore, the bottom of the bottom cover 200 is provided with a second platform 238. During installation, the bottom of the shielding ring 130 abuts against the second platform 238 to prevent dust from entering the gap between the top cover 100 and the bottom cover 200. Simultaneously, as a foolproof measure, it can also serve as an anti-theft measure. A third platform 310 is provided at the bottle opening 300; when the bottle cap is installed in place, the second platform 238 precisely abuts against the third platform 310. The structure of this invention can be adapted to bottle openings 300 with the aforementioned third platform 310, and also to bottle openings 300 without the aforementioned third platform 310. This structure allows the bottle cap of this invention to be universally compatible with commonly used bottle openings on the market, even if the bottle opening tolerances of various manufacturers are large, because the top cover 100 and the bottom cover 200 are integrated into a single unit.

[0043] In another embodiment of the invention, according to Figure 3-5 As shown, the reinforcing component 230 also includes a first platform 232 and a baffle 233 disposed on the first platform 232. The upper cover 100 has a first thread 170 inside, and the baffle 233 has a second thread 2331. The first thread 170 and the second thread 2331 cooperate with each other, so that the upper cover 100 can be rotatably mounted on the bottom cover 200. Specifically, the baffle 233 contacts the inner wall of the upper cover 100, which can share part of the force and improve the structural strength.

[0044] In another embodiment of the invention, according to Figure 3-5 As shown, a return channel 240 is formed between the baffle 233, the second seal 220, and the first platform 232. The second seal 220 has a circumferentially curved lower edge 223 at the end furthest from the opening 210. This parabolic structure greatly reduces liquid residue when pouring liquid. Even if there is excess liquid, it will flow into the return channel 240 from the curved lower edge 223. Specifically, the curved lower edge 223 allows excess liquid to flow into the return channel 240 along the curved lower edge 223, preventing it from dripping to other locations and achieving a residue-free liquid outlet when pouring.

[0045] Furthermore, the reflux groove 240 is provided with reflux holes, which can be through holes or blind holes.

[0046] In another embodiment of the invention, according to Figure 3 As shown, a straight support 250 is provided at the opening 210. The straight support 250 has the function of slowing down the liquid flow rate, making the liquid flow rate uniform and providing a fixed support function. Specifically, the straight support 250 can make the liquid flow more uniform when passing through, and at the same time, the straight support 250 is connected to the opening 210, providing a certain degree of force support.

[0047] In another embodiment of the invention, according to Figure 1As shown, the upper cover 100 is also provided with a protective cover 400, which is placed on the upper cover 100. The protective cover 400 is used to increase the cushioning and drop protection, and better protect the upper cover 100. Furthermore, the protective cover has a protective cover protrusion inside, which also has a further cushioning effect to further protect the upper cover 100, thereby further reducing the risk of violent transportation. The upper cover is provided with an assembly groove 160. When the protective cover is placed on the upper cover, the protective cover protrusion engages with the assembly groove 160 to achieve a detachable connection. Furthermore, the protective cover 400 can be produced in a modular fashion. It not only protects the top cover 100 and the bottom cover 200, increasing impact resistance and collision protection, but the design of the protective cover 400 can also be diversified, allowing manufacturers to customize it. For example, logos or some patterns and text can be added, and the shape of the protective cover 400 can also be changed, allowing manufacturers to update and upgrade it. For example, each generation of the protective cover 400 can be replaced with different appearances to attract the attention of different consumers. The structure of the bottom top cover 100 and bottom cover 200 does not need to be changed; only the protective cover needs to be replaced, reducing the production cost for enterprises.

[0048] Furthermore, the inner wall of the protective cover 400 is provided with a plurality of first mating protrusions 420, and the outer wall of the upper cover 100 is provided with a ring of second mating protrusions 180. The bottom of the second mating protrusions 180 is provided with the mounting groove 160. When the protective cover 400 covers the upper cover 100, the first mating protrusions 420 pass through the gaps between adjacent second mating protrusions 180 and engage in a locking manner. Specifically, the protective cover 400 and the upper cover 100 are not rotated together, but rather plugged in and engaged. In the horizontal direction, the protective cover 400 and the upper cover 100 are locked together. At this time, rotating the protective cover 400 is equivalent to rotating the upper cover 100, which allows the protective cover 400 and the upper cover 100 to form a whole. The number of first mating protrusions 420 is less than the number of second mating protrusions 180, which makes it easier for the protective cover 400 to engage in the gaps between adjacent second mating protrusions 180. Furthermore, the protective cover 400 and the upper cover 100 can be connected by a detachable method such as snap-fit ​​or screw-fit.

[0049] Furthermore, each of the first mating protrusions 420 and each of the second mating protrusions 180 has a smooth arc-shaped transition at its edge. The smooth transition at the edge makes the engagement of the first mating protrusion 420 and the second mating protrusion 180 smoother and easier. It can be understood that the engagement and limiting process is that one of the first mating protrusions 420 passes through the gap between two adjacent second mating protrusions 180 from the top.

[0050] Furthermore, the outer side wall of the protective cover 400 is provided with a ring of friction protrusions 430, and the plurality of friction protrusions 430 are used to increase friction and prevent the hand from slipping.

[0051] Furthermore, the protective cap 400 serves to protect the top cap 100, creating a buffer between them. During rough handling during transport, the protective cap 400 directly absorbs the force, rather than the top cap 100, thus protecting it and mitigating the impact of violent transport. The protective cap 400 offers four advantages: First, it acts as a shock absorber, protecting both the top cap 100 and the bottom cap 200, addressing the issue of rough handling during logistics. Second, it diversifies the otherwise monotonous appearance of the top cap 100 and bottom cap, making them more sophisticated and versatile to meet the needs of different businesses. Third, it innovatively utilizes a modular design approach in the bottle cap industry, simplifying and accelerating design, facilitating customization, and significantly reducing costs for buyers. Fourth, it significantly reduces development costs, making development faster and easier to standardize.

[0052] In another embodiment of the invention, according to Figure 4 and 5 As shown, a ring of protrusions 224 is circumferentially arranged on the opposite side of the first boss 222. The protrusions 224 are used to increase the support strength. Specifically, by providing the protrusions 224, the support strength of the middle part of the second seal 220 can be improved.

[0053] In summary, to address consumers' confusion regarding pull tabs, a pull tab-less structure was envisioned. Since there's no pull tab, the bottle opening is always open, so the sealing problem needed to be solved. A multi-layered sealing structure perfectly solved the sealing problem. However, ensuring the reliability of the seal and preventing loosening during transportation remained a concern. Therefore, an integrated top and bottom cap structure was researched. However, simply integrating the top and bottom caps wasn't strong enough. Further research focused on designing the top and bottom caps and the bottle opening as a single unit to solve the strength problem. This structure finally solved the problem of integrated strength of the top and bottom caps and the bottle opening, not only preventing loosening during normal operation but also ensuring a secure seal. Furthermore, the risk of damage from impacts at the bottle opening during rough handling was significantly reduced. However, testing revealed that the strength of the top and bottom caps was still insufficient, leading to the development of the Protective Cap 400 structure, which greatly reduced the risk of damage during rough handling. These developments completely solved the problem of pull-ring bottle cap structures and significantly reduced the risk of rough handling, ensuring worry-free logistics. Further, testing revealed residue at the outlet when pouring liquid, leading to the invention of the parabolic lower edge 223 and the return channel 240 structure. Finally, the Protective Cap 400 was optimized into a modular structure, pioneering a modular bottle cap design. Thus, the entire invention was completed.

[0054] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention and should not be construed as limiting the specific implementation of the invention to these descriptions. For those skilled in the art, the architectural form of this invention can be flexibly varied without departing from its conceptual framework, leading to the derivation of a series of products. Any simple deductions or substitutions should be considered as falling within the patent protection scope defined by the submitted claims.

Claims

1. A pull-ringless bottle cap, characterized in that, Includes a bottom cap (200) and a top cap (100); the bottom cap (200) is detachably attached to the bottle opening (300), and has an opening (210) in the center that communicates with the inside of the bottle; the top cap (100) is placed on top of the bottom cap (200), and has a first sealing element (110) on the top cap (100); the bottom cap (200) has a second sealing element (220). When the top cap (100) and the bottom cap (200) are in contact, the top cap (200) and the bottom cap (100) are connected. When the lid is in place, the upper cover (100) can cover the bottom cover (200), and the first sealing member (110) and the second sealing member (220) cooperate to form at least one abutment surface to seal the opening (210); the bottom cover (200) is provided with a reinforcing component (230), and the reinforcing component (230) can make the upper cover (100), the bottom cover (200) and the bottle mouth (300) form a whole to increase the force and make it more impact resistant.

2. The pull-ringless bottle cap according to claim 1, characterized in that, The second seal (220) is disposed around the opening (210). The second seal (220) is funnel-shaped with open ends. The opening (210) gradually increases in size from the opening (210) outward. The first seal (110) is disposed corresponding to the second seal (220). The first seal (110) can be inserted into the second seal (220) to form at least one abutment surface to seal the opening (210).

3. The pull-ringless bottle cap according to claim 2, characterized in that, A groove (221) is provided along the opening (210). The top end of the first sealing member (110) can be engaged in the groove (221). The top end contact surface of the first sealing member (110) abuts and seals with the contact surface of the groove (221). The second sealing member (220) is provided with a first boss (222). The first sealing member (110) is provided with a second boss (111) corresponding to the position of the first boss (222). When the first sealing member (110) is inserted into the second sealing member (220), the first boss (222) and the second boss (111) cooperate with each other to abut and seal.

4. The pull-ringless bottle cap according to claim 1, characterized in that, The upper cover (100) includes an upper rotating cover (120) and a bottom shielding ring (130); a tear strip (140) is provided between the rotating cover (120) and the shielding ring (130), the tear strip (140) is detachably connected to the rotating cover (120) and the shielding ring (130), and the tear strip (140) is used to seal and prevent the rotating cover (120) from rotating.

5. The pull-ringless bottle cap according to claim 1, characterized in that, The reinforcing component (230) includes a snap-fit ​​groove (231); the bottle neck (300) can be inserted into the snap-fit ​​groove (231). A first snap-fit ​​protrusion (234) is provided at the entrance of the snap-fit ​​groove (231), and a second snap-fit ​​protrusion (235) is provided at the bottle neck (300). When the bottle neck (300) is placed in the snap-fit ​​groove (231), the first snap-fit ​​protrusion (234) and the second snap-fit ​​protrusion... The protrusion (235) is securely engaged; the reinforcing component (230) also includes a third engaging protrusion (236); the third engaging protrusion (236) is provided on the bottom cover (200), and the shielding ring (130) is provided with a fourth engaging protrusion (237). When the top cover (100) is placed on the bottom cover (200), the third engaging protrusion (236) and the fourth engaging protrusion (237) are securely engaged.

6. The pull-ringless bottle cap according to claim 4, characterized in that, When the rotating cover (120) is screwed onto the bottom cover (200), the bottom edge of the rotating cover (120) is tightly sealed against the first platform (232) on the bottom cover (200).

7. The pull-ringless bottle cap according to claim 1, characterized in that, The reinforcement component (230) also includes a first platform (232) and a baffle (233) disposed on the first platform (232). The upper cover (100) is provided with a first thread (170) inside, and the baffle (233) is provided with a second thread (2331). The first thread (170) and the second thread (2331) cooperate with each other, so that the upper cover (100) can be rotatably covered (120) and disposed on the bottom cover (200).

8. The pull-ringless bottle cap according to claim 7, characterized in that, The rotating cover (120) has a circumferentially extending underhang (121) at its bottom edge. The underhang (121) can cover the first platform (232). The underhang (121) is used to prevent dust from entering the first platform (232) and the baffle (233).

9. The pull-ringless bottle cap according to claim 7, characterized in that, A reflux groove (240) is formed between the baffle (233), the second seal (220) and the first platform (232). The second seal (220) has a circumferential arc-shaped lower edge (223) at one end away from the opening (210). When poured, the residual liquid will flow into the reflux groove (240) from the arc-shaped lower edge (223).

10. The pull-ringless bottle cap according to claim 1, characterized in that, The upper cover (100) is also provided with a protective cover (400), which is placed on the upper cover (100) and is used to increase drop protection and better protect the upper cover (100).

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