TWM657284U - Ready-to-dispense bottle cap and ready-to-dispense bottle - Google Patents

Abstract

The invention proposes a ready-to-dispense bottle cap and a ready-to-dispense bottle, the ready-to-dispense bottle cap comprises a cap body, a sealing plug and a sealing film, the cap body and the sealing plug together form a sealed material storage cavity, the cap body comprises an integrally formed pressing portion, an elastic portion, a protective portion, a top column and a cap cylinder, the bottom of the cap cylinder is slidably and sealingly connected to the sealing plug, the ready-to-dispense bottle cap only needs two injection-molded parts, the cap body and the sealing plug, and the whole is The body adopts a thin-wall and seamless structural design, which has a simple structure, saves materials, and has high efficiency and low cost in the injection molding of parts and components, which can greatly reduce the injection molding defect rate of product parts and easily realize automated production. In addition, only the connection between the sealing plug and the cover barrel needs to be sealed, which reduces the difficulty of sealing. In the closed state, the overall structure has strong stability, high sealing performance, and high oxygen and moisture barrier performance.

Description

A ready-to-use bottle cap and a ready-to-use bottle

The invention relates to the field of bottle cap manufacturing technology, and in particular to a ready-to-use bottle cap and a ready-to-use bottle.

Traditional packaged beverages (such as bottled tea drinks) are sold after the solute is mixed with water. In order to extend the shelf life of the beverage, various artificial chemicals such as preservatives and stabilizers are added, which not only affects the taste, but also causes a certain degree of harm to the human body. This is not advocated by the current concept of healthy living. Therefore, ready-to-use bottle caps came into being. The solute is sealed and stored in the bottle cap, which can effectively and stably preserve the activity of various nutrients. When the beverage needs to be consumed, the solute in the bottle cap is released into the water, which not only can obtain a longer shelf life, but also has a fresh taste without the addition of any artificial preservatives, which is more in line with the needs of healthy drinks.

Existing instant bottle caps with the above functions usually adopt a sealing film or a weak layer structure design. When drinking, the sealing film or the weak layer is broken, so that the solute in the storage cavity flows out and mixes with the water in the bottle.

This type of design usually has the following problems:

1. The difficulty in processing the sealing film or weak layer leads to high processing costs. For example, the bonding processing space of the sealing film structure is limited, and the injection molding process of the weak layer structure is difficult, inefficient, and has a high production defect rate;

2. The sealing film or weak layer is relatively thin in structure, resulting in insufficient stability and sealing. First, the sealing film or weak layer is easily damaged during storage or transportation, thus affecting the quality of the encapsulated solute; second, even if the sealing film or weak layer is not damaged, its oxygen and moisture barrier properties are insufficient.

In view of the above problems, a utility model patent with a prior art publication number of CN 214731098 U proposes a piston-type bottle cap and a bottle using the bottle cap, which uses a piston to seal or open a discharge port, has low costs for parts processing and assembly, can greatly reduce the defective rate of product parts, and can easily realize automated production; and when the discharge port is closed, the overall structural stability is strong, the sealing is high, and the oxygen and moisture barrier performance is high. However, the scheme includes a structure of an upper cover, a lower cover, a sealing plug and a protective cover, and the upper cover and the lower cover adopt a split design, which is not only complex in structure, but also requires a sealing structure to be designed for the upper cover and the lower cover, which increases the difficulty of sealing the storage chamber.

In view of this, the present invention proposes an instant bottle cap and an instant bottle to solve the problem that the upper cover and the lower cover of the instant cap proposed in the above background technology adopt a split design, which makes the structure complicated and the sealing difficult.

The technical solution of this creation is realized as follows:

In a first aspect, the invention provides a ready-to-use bottle cap, comprising a cap body, a sealing plug and a sealing film, wherein the cap body and the sealing plug together form a sealed storage cavity, wherein:

The cover body comprises an integrally formed pressing portion, an elastic portion, a protective portion, a top column and a cover barrel, the edge of the pressing portion extends outward to form the elastic portion, the height of the protective portion is greater than the height of the pressing portion to prevent the pressing portion from being accidentally touched by an external force when not in use, and the edge of the elastic portion extends and bulges away from the storage cavity to form the protective portion; the top column is arranged below the pressing portion, and its lower end is clamped with the sealing plug; the top of the cover barrel is integrally connected with the edge of the elastic portion, and the bottom of the cover barrel is open, which is slidably and sealingly connected with the sealing plug to form the storage cavity;

The pressing part can drive the elastic part to deform and move downward under the action of external force, and the top column can simultaneously push the sealing plug to move downward, so that the sealing plug is disconnected from the cover cylinder to open the storage cavity;

The cover body also includes a cover body and a first anti-theft ring. The cover body is arranged on the outer periphery of the cover tube and forms a first bottle mouth connecting groove between the cover body and the cover tube. The inner wall of the cover body is provided with an internal thread for connecting with the external thread of the bottle mouth. The first anti-theft ring is arranged at the bottom of the cover body, and the top of the first anti-theft ring is integrally connected to the bottom edge of the cover body through a plurality of filamentary structures.

On the basis of the above technical solution, preferably, the sealing plug includes an integrally formed plug ring, plug surface, plug bottom, supporting partition and snap-in hole, the plug ring is arranged on the outer periphery of the plug surface, and the plug ring is sealingly connected to the inner wall of the bottom of the cover tube; the plug surface faces the storage cavity, and a snap-in hole is arranged on the plug surface, the bottom of the top column is plugged into the snap-in hole, and at least three supporting partitions are evenly arranged on the plug surface along the diameter of the plug ring, which are used for supporting and fixing the position of the sealing plug after it is opened.

On the basis of the above technical solution, preferably, an annular groove is provided on the inner wall of the snap-in hole, and an annular protrusion is provided on the outer wall of the bottom of the top column, and the annular protrusion is snap-fitted with the annular groove to achieve a more secure plug-in effect.

On the basis of the above technical solution, preferably, the outer wall of the plug ring is provided with an integrally formed annular convex sealing line, the diameter of the annular convex sealing line is larger than the inner diameter of the cover barrel, and an interference fit is formed between the sealing plug and the cover barrel through the elasticity of the injection molded part to achieve a better sealing effect.

On the basis of the above technical solution, preferably, it also includes a sealing film, which is a high-barrier composite material and is covered on the lower surface of the sealing plug and the cover cylinder flush with each other through a heat sealing or ultrasonic welding process to completely cover the structural gap between the sealing plug and the bottom of the cover cylinder to achieve a complete sealing effect.

In the second aspect, the invention provides a ready-to-use bottle cap, comprising an upper cover, a lower cover and a sealing plug, wherein the upper cover, the lower cover and the sealing plug together form a sealed storage cavity; the upper cover comprises an integrally formed pressing portion, an elastic portion, a protective portion, a top column, an upper cover cylinder and an annular upper clamping portion, wherein the protective portion protrudes upward to form a protective area for accommodating the pressing portion and the elastic portion, and the height of the protective portion is greater than the height of the pressing portion; The sealing plug is detachably and hermetically connected to the bottom of the lower cover for sealing the storage cavity; the top column is integrally arranged below the pressing portion of the upper cover, and its lower end is fixedly connected to the sealing plug; the top column of the upper cover also includes a column core and a plurality of supporting wing plates integrally connected to the pressing portion, and when the pressing portion is manually acted downward, the elastic portion is deformed and moves downward, and the top column synchronously pushes the sealing plug downward to separate the sealing plug from the blocking of the lower cover tube, thereby opening the storage cavity.

On the basis of the above technical solution, preferably, the lower cover comprises a lower cover body, a lower cover tube, an annular lower clamping portion and a second anti-theft ring, the upper cover is a structure with a closed top and an open lower end of the upper cover tube; the lower cover is a cylindrical structure with upper and lower openings and the lower cover body is integrally sleeved on the lower cover tube, the upper cover and the lower cover are sealed and clamped by their respective annular upper clamping portions and annular lower clamping portions, thereby enclosing and forming a storage cavity, and the second anti-theft ring is arranged at the bottom of the lower cover body;

On the basis of the above technical solution, preferably, a double-ring upper clamping part is provided at the lower end of the upper cover cylinder, and a clamping gap is formed between the double rings of the upper clamping part; a double-ring lower clamping part is provided at the top end of the lower cover body, and a clamping gap is formed between the double rings of the lower clamping part, and the upper clamping part and the lower clamping part are alternately inserted into the clamping gap, and annular protrusions and annular grooves are correspondingly provided on the upper clamping part and the lower clamping part, and the annular protrusions and the annular grooves match each other to form a sealing structure.

On the basis of the above technical solution, preferably, the lower cover cylinder is a cylindrical structure with upper and lower openings, the lower cover body is integrally sleeved on the lower cover cylinder and a second bottle mouth connecting groove is formed between the two, and the inner wall of the lower cover body is provided with an inner thread for connecting the outer thread of the bottle mouth;

On the basis of the above technical solution, preferably, the sealing plug includes a plug ring, a plug surface, a plug bottom, a snap-on hole and a supporting partition. The portion directly and sealingly connected to the bottom end of the inner wall of the lower cover tube is the plug ring, and the end facing the storage chamber is the plug surface, which is a cone with an arc-shaped slope. A snap-on hole is provided at the top end of the cone, and the top column of the upper cover is plugged into the snap-on hole. Annular protrusions and annular grooves are formed correspondingly on the inner wall of the snap-on hole and the outer wall of the top column. Three supporting partitions are evenly and vertically arranged on the plug surface and are an integrated structure, which are used to support and fix the sealing plug after it is opened.

On the basis of the above technical solution, preferably, it also includes a sealing film, which is a high-barrier composite material and is covered on the lower surface of the sealing plug and the lower cover tube by heat sealing or ultrasonic welding process to completely cover the structural gap between the sealing plug and the bottom of the lower cover tube to achieve a complete sealing effect.

In a third aspect, the present invention provides an instant dispensing bottle, comprising a bottle body and the instant dispensing bottle cap of the first aspect or the second aspect connected to the bottle body.

The instant bottle cap of this invention has the following beneficial effects compared with the prior art:

(1) The instant bottle cap only needs two injection-molded parts, the cap body and the sealing plug, and a sealing film. The overall structure is designed without thin walls and gaps. The structure is simple, the material is economical, the injection molding process of the parts is efficient and the cost is low, which can greatly reduce the injection molding defect rate of product parts and facilitate automated production. In addition, only the connection between the sealing plug and the cap barrel needs to be sealed, which reduces the difficulty of sealing. In the closed state, the overall structure is stable, the sealing is high, and the oxygen and moisture barrier performance is high.

(2) The annular protective area formed by the upward protrusion of the protective part is used to accommodate the pressing part and the elastic part. The protective part, the pressing part and the elastic part can be integrally injection molded during production. The height of the protective part is greater than the height of the pressing part, so as to prevent the pressing part from being accidentally touched by external force when not in use. There is no need to install an additional protective cover to protect the pressing part, which simplifies the structure of the instant bottle cap, saves components, and reduces the production cost of the instant bottle cap;

(3) The sealing plug structure is used, and the lower surface of the sealing plug and the cover barrel is covered by heat sealing or ultrasonic welding process to completely cover the structural gap between the sealing plug and the bottom of the cover barrel, so as to achieve a complete sealing effect. In addition, the contact area between the plug ring of the sealing plug and the inner wall of the bottom of the cover barrel is small, so the friction is small. When using the product, the resistance of manually applying downward force to the pressing part of the cover body to open the storage cavity is small, which is more labor-saving and smooth.

The following will be combined with the implementation of this creation to clearly and completely describe the technical solutions in the implementation of this creation. Obviously, the implementation described is only a part of the implementation of this creation, not all of the implementation. Based on the implementation of this creation, all other implementations obtained by ordinary technical personnel in this field without creative labor are within the scope of protection of this creation.

Embodiment 1

1 to 4, the present invention provides a bottle cap, comprising a cap body 1A, a sealing plug 2A and a sealing film 3A, wherein a sealed storage cavity 4A is formed between the cap body 1A and the sealing plug 2A, wherein:

The cover body 1A includes an integrally formed pressing portion 11A, an elastic portion 12A, a protective portion 13A, a top column 14A and a cover cylinder 15A. The edge of the pressing portion 11A extends outward to form the elastic portion 12A. The elastic portion 12A extends away from the storage cavity 4A to form the protective portion 13A. The protective portion 13A is used to accommodate the pressing portion 11A and the elastic portion 12A. The top column 14A is disposed on the pressing portion 11A. A is located below the cover tube 15A, and its lower end is connected to the sealing plug 2A; the top of the cover tube 15A is integrally connected to the edge of the elastic portion 12A, the axial direction of the cover tube 15A is opposite to the extension direction of the protective portion 13A, and the cover tube 15A is slidingly and sealingly connected to the sealing plug 2A to form the storage cavity 4A; specifically, the sealing plug 2A, the pressing portion 11A, the elastic portion 12A and the cover tube 15A form a sealed storage cavity 4A.

The pressing portion 11A can drive the elastic portion 12A to deform and move toward the inside of the storage chamber 4A under the action of an external force, and the top column 14A simultaneously pushes the sealing plug 2A to move downward, so that the sealing plug 2A is disconnected from the bottom inner wall of the cover tube 15A, thereby opening the storage chamber 4A.

The instant bottle cap proposed in this embodiment only needs two injection-molded parts, the cap body 1A and the sealing plug 2A, which can save one part, making the structure of the instant bottle cap simpler and reducing the production cost. In addition, only the connection part between the sealing plug 2A and the cap cylinder 15A needs to be sealed, which reduces the difficulty of sealing.

In one embodiment, the height of the protective portion 13A is greater than the height of the pressing portion 11A. The protective portion 13A, the pressing portion 11A and the elastic portion 12A can be injection molded at one time during production, and there is no need to install an additional protective cover to protect the pressing portion 11A. The height of the protective portion 13A is greater than the height of the pressing portion 11A to prevent the pressing portion 11A from being accidentally touched by external force when not in use, simplifying the structure of the ready-to-dispense bottle cap, saving components, and reducing the production cost of the ready-to-dispense bottle cap.

In this embodiment, the sealing plug 2A includes: a plug ring 21A, a plug surface 22A, a plug bottom 23A, a snap-on hole 24A, and a supporting partition 25A. The sealing plug 2A is a cone-like structure as a whole. The portion directly sealed and connected to the bottom end of the inner wall of the cover cylinder 15A is the plug ring 21A, and the end facing the storage chamber 4A is the plug surface 22A, which is a cone with an arc slope, and a snap-on hole 24A is provided at the top of the cone. The cover body 1A The top column 14A is plugged into the clamping hole 24A, and the inner wall of the clamping hole 24A and the outer wall of the top column 14A form matching annular protrusions and annular grooves to achieve a more firm and stable plugging effect so that the sealing plug 2A is not easy to fall off after the storage cavity 4A is opened; three supporting partitions 25A are evenly and vertically arranged on the plug surface 22A and are an integrated structure, which is used to support and fix the sealing plug 2A after opening. The plug bottom 23A is a lightweight structure of multiple nested circular rings of different sizes, and the bottoms of the multiple circular rings are even. After the sealing plug 2A and the cover cylinder 15A are sealed and clamped in place, the bottoms of the two are in an even state.

In one embodiment, the outer wall of the plug ring 21A is provided with an integrally formed annular convex sealing line 211A, the diameter of the annular convex sealing line 211A is slightly larger than the inner diameter of the cover cylinder 15A, and an interference fit is formed between the sealing plug 2A and the cover cylinder 15A through the elasticity of the injection molded part to achieve a better sealing effect.

In one embodiment, the top column 14A of the cover body 1A further includes a column core 161A and a plurality of supporting wing plates (not shown in the figure) integrally connected to the pressing portion 11A. The lightweight structure enables the top column 14A to have better strength to better withstand downward force.

In one embodiment, the inner wall of the clamping hole 24A is provided with an annular groove 241A, and the outer wall of the lower part of the top column 14A is provided with an annular protrusion 141A, and the annular protrusion 141A is clamped with the annular groove 241A. By clamping the annular protrusion 141A with the annular groove 241A, a more firm and stable plugging effect is achieved, so that the sealing plug 2A is not easy to fall off after the storage cavity 4A is opened.

In one embodiment, the cap body 1A further includes a cap body 16A, which is arranged on the outer periphery of the cap cylinder 15A and forms a first bottle mouth connection groove with the cap cylinder 15A, and the inner wall of the cap body 16A is provided with an inner thread 162A for connecting with the outer thread of the bottle mouth. The first bottle mouth connection groove is formed between the cap body 16A and the cap cylinder 15A, and the inner thread 162A is provided on the inner wall of the cap body 16A for connecting with the outer thread of the bottle mouth, so as to realize the connection between the bottle cap and the bottle body.

In one embodiment, the cap body 1A further includes a first anti-theft ring 161A disposed at the bottom of the cap body 16A, and the top of the first anti-theft ring 161A is integrally connected to the bottom edge of the cap body 16A through a plurality of filamentary structures. With the provision of the first anti-theft ring 161A, when the user twists the ready-to-use cap, the first anti-theft ring 161A will break and detach from the cap body 16A, thereby remaining on the bottle. The user can judge whether the ready-to-use bottle cap is sealed intact or has been maliciously opened according to whether the first anti-theft ring 161A is broken, so as to ensure the food safety of the packaged beverage.

In one embodiment, the instant bottle cap further includes a sealing film 3A. To further enhance the sealing performance, the sealing plug 2A and the lower surface of the cap cylinder 15A that is flush with each other can be welded with the sealing film 3A by ultrasonic or hot-melt process to cover the gap between the structural parts, thereby achieving a seamless and better sealing effect. At the same time, a protective film can also be covered on the upper surface of the cap body 1A to seal the pressing portion 11A, thereby preventing accidental pressing and preventing the bottle from being opened by theft.

The working principle of the instant bottle cap is as follows: the integrally formed cap body 1A is inverted, so that the opening at the bottom of the cap barrel 15A faces upward, and a proper amount of solute is injected into the storage cavity 4A through the opening, and then the plug surface 22A of the sealing plug 2A is assembled to the bottom of the cap barrel 15A with the plug surface facing the storage cavity 4A, so that the top column 14A of the cap body 1A is inserted into the clamping hole 24A of the sealing plug 2A to form a firm clamping connection, and at the same time, the plug ring 21A of the sealing plug 2A is sealed and connected with the inner wall of the bottom of the cap barrel 15A, thereby sealing the solute in the storage cavity 4A. In order to further enhance the sealing performance, the sealing plug 2A and the cap barrel 15A can be welded with a sealing film 3A by ultrasonic or hot melt process on the lower surface flush with the cap barrel 15A to cover the gap between the structural parts, so as to achieve a seamless and better sealing effect. At the same time, a protective film is also covered on the upper surface of the cap body 1A, sealing the pressing part 11A, which has the effect of preventing accidental pressing and preventing theft and opening. The instant bottle cap is installed. Furthermore, after the bottle body 200 is purified and filled with water, the instant bottle cap 100 is assembled to the bottle body 200 by an automatic screwing process. The instant bottle cap 100 is provided with an inner thread 162A, and the bottle mouth of the bottle body 200 is provided with an outer thread. The instant bottle cap 100 and the bottle body 200 are tightened through the inner thread 162A and the outer thread, and the sealing fit is completed. The bottle using the instant bottle cap is completely produced, processed and assembled.

When in use, tear off the protective film on the cover body 1A, press the pressing part 11A of the cover body 1A downward with your fingers, push the top column 14A to drive the sealing plug 2A to move downward, so that the sealing plug 2A is separated from the sealing shield of the inner wall of the cover cylinder 15A, and at the same time, the sealing film 3A is separated from the bottom of the cover cylinder 15A but still adheres to the plug bottom 23A of the sealing plug 2A and will not fall into the bottle, thereby opening the storage cavity 4A, and the solute pre-filled in the storage cavity 4A falls out from the gap between the sealing plug 2A and the bottom of the cover cylinder 15A under the action of gravity, falls into the bottle body 200 and mixes and dissolves with the water in the bottle body 200. After being shaken to mix evenly or standing for a period of time to fully dissolve, it can be drunk.

In order to make full use of the diameter of the cap body as the maximum diameter of the storage cavity 3A and thereby expand the capacity of the storage cavity 3A of the instant cap, and at the same time to prevent the cap cylinder 15A from extending downward too much so that the instant bottle cap is more beautiful before and after opening, the cap body 1A can be divided into two parts: an upper cap and a lower cap, thereby obtaining the following Embodiment 2 and Embodiment 3.

Embodiment 2

Please refer to Figures 5 to 9, the present invention provides a bottle cap for instant dispensing, which includes an upper cover 1B, a lower cover 2B, a sealing plug 3B and a sealing film 4B. The upper cover 1B, the lower cover 2B and the sealing plug 3B together form a closed material storage cavity 5B.

The upper cover 1B is a structure with a closed top and an open bottom. The upper cover 1B includes a pressing portion 11B, an elastic portion 12B, a protective portion 13B, an upper cover cylinder 15B, an annular upper clamping portion 151B, and a top column 14B. The above-mentioned parts are an integrated structure. The protective portion 13B protrudes upward to enclose and form a protective area for accommodating the pressing portion 11B and the elastic portion 12B. The protective portion 13B has a height greater than that of the pressing portion 11B to prevent the pressing portion 11B from being accidentally touched by external force when not in use; the sealing plug 3B is detachably sealed and connected to the bottom of the lower cover 2B to seal the storage cavity 5B; the top column 14B is integrally arranged below the pressing portion 11B of the upper cover 1B, and its lower end is fixedly engaged with the sealing plug 3B. The elastic portion 12B is slightly thin and is easily deformed under the action of external force, and has good toughness and is not easy to break during the deformation process. When the pressing part 11B is manually pressed downward, the elastic part 12B is deformed and moves downward, and the top column 14B simultaneously pushes the sealing plug 3B downward so that the sealing plug 3B is separated from the shielding of the lower cover cylinder 22B, thereby opening the storage chamber 5B. The solute pre-filled in the storage chamber 5B falls from the gap between the sealing plug 3B and the lower cover cylinder 22B, enters the bottle body 200, and merges with the water or other solvents in the bottle body 200.

The lower cover 2B includes a lower cover body 21B, a lower cover tube 22B, an annular lower clamping portion 212B and a second anti-theft ring 213B, and the above-mentioned parts are an integrated structure formed at one time; the lower cover 2B is a cylindrical structure with upper and lower openings, and the lower cover body 21B is integrally sleeved on the lower cover tube 22B.

In this embodiment, the lower end of the upper cover 1B is provided with a double-ring-shaped upper clamping portion 151B, and a gap is formed between the double rings of the upper clamping portion 151B. The upper end of the lower cover 2B is provided with a double-ring-shaped lower clamping portion 212B, and a gap is formed between the double rings of the lower clamping portion 212B. The upper clamping portion 151B and the lower clamping portion 212B are mutually matched sealed clamping structures, and the double ring structures of each other are alternately inserted into each other's gaps, and the upper clamping portion 151B and the lower clamping portion 212B are correspondingly provided with annular protrusions and annular grooves to cooperate with the clamping, so as to achieve a more sealed and more secure clamping effect. Obviously, the more rings there are on the upper clamping portion 151B and the lower clamping portion 212B, the more secure the clamping is. However, it will also increase the manufacturing and assembly costs. Therefore, in this embodiment, the upper cover 1B preferably has an upper clamping portion 151B with two rings, and the lower cover 2B preferably has a lower clamping portion 212B with two rings. The applicant has found that the double-ring clamping structure is strong enough to meet the requirements of complete sealing, and the ultrasonic welding process required in the single-layer clamping structure is not required, which further reduces the production cost; if a stronger clamping effect is required, the upper clamping portion 151B and the lower clamping portion 212B can also be connected by ultrasonic welding to fuse the release parts of the two to form a seamless sealing structure.

In a further embodiment, the upper clamping portion 151B is provided with a third annular groove 1511B, a fourth annular protrusion 1512B and a fifth annular protrusion 1513B; the lower clamping portion 212B is provided with a third annular protrusion 2121B, a fourth annular groove 2122B and a fifth annular groove 2123B. The third annular protrusion 2121B matches the third annular groove 1511B, the fifth annular protrusion 1512B matches the fourth annular groove 2122B; the fifth annular protrusion 1513B matches the fifth annular groove 2123B. The upper clamping portion 151B and the lower clamping portion 212B are provided with corresponding annular protrusions and annular grooves for matching clamping, so as to achieve a more sealed and firm clamping effect.

In this embodiment, the sealing plug 3B includes: a plug ring 31B, a plug surface 32B, a plug bottom 33B, a snap-on hole 34B, and a supporting partition 35B. The sealing plug 3B is a cone-like structure as a whole. The portion directly sealed and connected to the bottom end of the inner wall of the lower cover cylinder 22B is the plug ring 31B, and the end facing the storage chamber 5B is the plug surface 32B, which is a cone with an arc slope. A snap-on hole 34B is provided at the top of the cone. The upper cover 1 The top column 14B of the plug 32B is plugged with the clamping hole 34B, and the inner wall of the clamping hole 34B and the outer wall of the top column 14B form a matching annular protrusion and annular groove to achieve a more firm and stable plugging effect so that the sealing plug 3B is not easy to fall off after the storage cavity 5B is opened; three supporting partitions 35B are evenly and vertically arranged on the plug surface 32B and are an integrated structure, which is used to support and fix the sealing plug 3B after opening. The plug bottom 33B is a lightweight structure with multiple nested circular rings of different sizes, and the bottoms of the multiple circular rings are flush. After the sealing plug 3B and the lower cover cylinder 22B are sealed and clamped in place, the bottoms of the two are in a flush state.

In one embodiment, the outer wall of the plug ring 31B is provided with an integrally formed annular convex sealing line 311B, the diameter of which is slightly larger than the inner diameter of the lower cover cylinder 22B, so as to form an interference fit between the sealing plug 2A and the lower cover cylinder 22B through the elasticity of the injection molded part, so as to achieve a better sealing effect.

In one embodiment, the top column 14B of the upper cover 1B further includes a column core 141B and a plurality of supporting wing plates 142B integrally connected to the pressing portion 11B. The lightweight structure enables the top column 14B to have better strength to better withstand the downward force.

In one embodiment, the inner wall of the clamping hole 34B is provided with an annular groove 341B, and the outer wall of the top column 14B is provided with an annular protrusion 1411B, and the annular protrusion 1411B is clamped with the annular groove 341B. By clamping the annular protrusion 1411B with the annular groove 341B, a more firm and stable plugging effect is achieved, so that the sealing plug 3B is not easy to fall off after the storage cavity 5B is opened.

The lower cover 2B further includes a second anti-theft ring 213B disposed at the bottom of the lower cover body 21B. The top of the second anti-theft ring 213B is integrally connected to the bottom edge of the lower cover body 21B through a plurality of filamentary structures. This configuration is a conventional technology in this field and is well known to those skilled in the art, so it will not be elaborated here.

The lower cover body 21B of the lower cover 2B is integrally sleeved on the lower cover cylinder 22B, and a second bottle mouth connecting groove is formed therebetween. The inner wall of the lower cover body 21B is provided with an inner thread 211B for connecting to the outer thread of the bottle mouth.

It should be noted that in this embodiment, the lower cover cylinder 22B is a straight cylinder, and its inner diameter remains unchanged along its axial direction, and the inner wall of the bottom of the lower cover cylinder 22B is sealed and connected to the sealing plug 3B. The straight cylinder design makes the discharge port formed after the sealing plug 3B is opened larger, which is suitable for solute particles or viscous liquids with large filling volume and poor fluidity, such as meal replacement powder, milk tea ingredients, honey, etc.

In one embodiment, the instant bottle cap further includes a sealing film 4B. To further enhance the sealing performance, the sealing plug 3B and the lower surface of the lower cover cylinder 22B can be welded with the sealing film 4B by ultrasonic or hot-melt process to cover the gap between the structural members, thereby achieving a seamless and better sealing effect. At the same time, a protective film is also covered on the upper surface of the upper cover 1B to seal the pressing portion 11B, thereby preventing accidental pressing and preventing the bottle from being opened by theft.

The working principle of the instant bottle cap of this embodiment is as follows: first, the upper cover 1B and the lower cover 2B are assembled together, and the two are clamped together by their respective upper clamping parts 151B and lower clamping parts 212B to form a sealed connection, and at the same time, the two form a storage cavity 5B with a bottom opening; then, the assembled upper cover 1B and lower cover 2B are inverted, so that the opening at the bottom of the lower cover cylinder 22B faces upward, and the upper cover 1B and the lower cover cylinder 22B are inverted. An appropriate amount of solute is injected into the storage cavity 5B through this opening, and then the plug surface 32B of the sealing plug 3B is assembled to the bottom of the lower cover tube 22B with the plug surface 32B facing the storage cavity 4B, so that the top column 14B of the upper cover 1B is inserted into the clamping hole 34B of the sealing plug 3B to form a firm clamping connection, and at the same time, the plug ring 31B of the sealing plug 3B is sealed and connected with the inner wall of the bottom of the lower cover tube 22B, thereby sealing the solute in the storage cavity 5B. In order to further enhance the sealing performance, the sealing plug 3B and the lower cover tube 22B are aligned with the lower surface of the sealing plug 3B using ultrasonic or hot melt process to weld the sealing film 4B to cover the gap between the structural parts, so as to achieve a seamless and better sealing effect. At the same time, a protective film is also covered on the upper surface of the upper cover 1B to seal the pressing part 11B, which has the effect of preventing accidental pressing and preventing theft and opening. The instant bottle cap is installed. Furthermore, after the bottle body 200 is purified and filled with water, the instant bottle cap 100 is assembled to the bottle body 200 by an automatic screwing process. The instant bottle cap 100 is provided with an inner thread 211B, and the bottle mouth of the bottle body 200 is provided with an outer thread. The instant bottle cap 100 and the bottle body 200 are tightened through the inner thread 211B and the outer thread, and the sealing fit is completed. The bottle using the instant bottle cap is completely produced, processed and assembled.

When in use, tear off the protective film on the upper cover 1B, press the pressing part 11B of the upper cover 1B downward with your fingers, push the top column 14B to drive the sealing plug 3B to move downward, so that the sealing plug 3B is separated from the sealing shield of the inner wall of the lower cover tube 22B, thereby opening the storage chamber 5B, and the solute pre-filled in the storage chamber 5B falls out from the gap between the sealing plug 3B and the bottom of the lower cover tube 22B under the action of gravity, falls into the bottle body 200 and mixes and dissolves with the water in the bottle body 200. After being shaken to mix evenly or standing for a period of time to fully dissolve, it can be drunk.

Embodiment 3

10 to 14, the present invention provides a bottle cap for instant dispensing, which includes an upper cover 1C, a lower cover 2C, a sealing plug 3C and a sealing film 4C. The upper cover 1C, the lower cover 2C and the sealing plug 3C together form a closed material storage cavity 5C.

The upper cover 1C is a structure with a closed top and an open bottom. The upper cover 1C includes a pressing portion 11C, an elastic portion 12C, a protective portion 13C, an upper cover cylinder 15C, an annular upper clamping portion 151C, and a top column 14C. The above-mentioned parts are an integrated structure. The protective portion 13C protrudes upward to enclose and form a protective area for accommodating the pressing portion 11C and the elastic portion 12C. , and the height of the protection part 13C is slightly greater than the height of the pressing part 11C to prevent the pressing part 11C from being accidentally touched by external force when not in use; the sealing plug 3C is detachably sealed and connected to the bottom of the lower cover 2C to seal the storage cavity 5C; the top column 14C is integrally arranged below the pressing part 11C of the upper cover 1C, and its lower end is fixedly engaged with the sealing plug 3C. The thickness of the elastic part 12C is slightly thin, and it is easy to deform under the action of external force, and it has good toughness and is not easy to break during the deformation process. When the pressing part 11C is manually acted downward, the elastic part 12C is deformed and moves downward, and the top column 14C simultaneously pushes the sealing plug 3C downward so that the sealing plug 3C is separated from the shielding of the lower cover cylinder 22C, thereby opening the storage chamber 5C, and the solute pre-filled in the storage chamber 5C falls from the gap between the sealing plug 3C and the lower cover cylinder 22C, enters the bottle body 200, and merges with the water or other solvents in the bottle body 200.

The lower cover 2C includes a lower cover body 21C, a lower cover tube 22C, an annular lower clamping portion 212C and a second anti-theft ring 213C, and the above-mentioned parts are an integrated structure formed at one time; the lower cover 2C is a cylindrical structure with upper and lower openings, and the lower cover body 21C is integrally sleeved on the lower cover tube 22C.

In this embodiment, the lower end of the upper cover 1C is provided with a double-ring-shaped upper clamping part 151C, and a gap is formed between the double rings of the upper clamping part 151C. The upper end of the lower cover 2C is provided with a double-ring-shaped lower clamping part 212C, and a gap is formed between the double rings of the lower clamping part 212C. The upper clamping part 151C and the lower clamping part 212C are mutually matched sealed clamping structures, and the double ring structures of each other are alternately inserted into each other's gaps, and the upper clamping part 151C and the lower clamping part 212C are correspondingly provided with annular protrusions and annular grooves to cooperate with the clamping, so as to achieve a more sealed and more secure clamping effect. Obviously, the more rings there are on the upper clamping part 151C and the lower clamping part 212C, the more secure the clamping is. However, it will also increase the manufacturing and assembly costs. Therefore, in this embodiment, the upper cover 1C preferably has an upper clamping portion 151C with two rings, and the lower cover 2C preferably has a lower clamping portion 212C with two rings. The applicant has found that the double-ring clamping structure is strong enough to meet the requirements of complete sealing, and the ultrasonic welding process required in the single-layer clamping structure is not required, which further reduces the production cost; if a stronger clamping effect is required, the upper clamping portion 151C and the lower clamping portion 212C can also be connected by ultrasonic welding to fuse the release parts of the two to form a seamless sealing structure.

In a further embodiment, the upper clamping portion 151C is provided with a third annular groove 1511C, a fourth annular protrusion 1512C and a fifth annular protrusion 1513C; the lower clamping portion 212C is provided with a third annular protrusion 2121C, a fourth annular groove 2122C and a fifth annular groove 2123C. The third annular protrusion 2121C matches the third annular groove 1511C, the fourth annular protrusion 1512C matches the fourth annular groove 2122C, and the fifth annular protrusion 1513C matches the fifth annular groove 2123C. The upper clamping portion 151C and the lower clamping portion 212C are provided with corresponding annular protrusions and annular grooves for matching clamping, so as to achieve a more sealed and firm clamping effect.

In this embodiment, the sealing plug 3C includes: a plug ring 31C, a plug surface 32C, a plug bottom 33C, a snap-on hole 34C, and a supporting partition 35C. The sealing plug 3C is a cone-like structure as a whole. The portion directly sealed and connected to the bottom end of the inner wall of the lower cover cylinder 22C is the plug ring 31C, and the end facing the storage chamber 5C is the plug surface 32C, which is a cone with an arc slope. A snap-on hole 34C is provided at the top of the cone. The upper cover 1 The top column 14C of the plug 32C is plugged with the said clamping hole 34C, and the inner wall of the said clamping hole 34C and the outer wall of the said top column 14C form a corresponding annular protrusion and annular groove that match each other, so as to achieve a more firm and stable plugging effect so that the sealing plug 3C is not easy to fall off after the storage cavity 5C is opened; three supporting partitions 35C are evenly and vertically arranged on the plug surface 32C and are an integrated structure, which is used to support and fix the sealing plug 3C after opening. The plug bottom 33C is a lightweight structure with multiple nested circular rings of different sizes, and the bottoms of the multiple circular rings are flush. After the sealing plug 3C and the lower cover cylinder 22C are sealed and clamped in place, the bottoms of the two are in a flush state.

In one embodiment, the outer wall of the plug ring 31C is provided with an integrally formed annular convex sealing line 311C, the diameter of which is slightly larger than the inner diameter of the lower cover cylinder 22C, so as to form an interference fit between the sealing plug 3C and the lower cover cylinder 22C through the elasticity of the injection molded part, so as to achieve a better sealing effect.

In one embodiment, the top column 14C of the upper cover 1C further includes a column core 141C and a plurality of supporting wing plates 142C integrally connected to the pressing portion 11C. The lightweight structure enables the top column 14C to have better strength to better withstand downward force.

In one embodiment, the inner wall of the clamping hole 34C is provided with an annular groove 341C, and the outer wall of the top column 14C is provided with an annular protrusion 163C, and the annular protrusion 163C is clamped with the annular groove 341C. By clamping the annular protrusion 163C with the annular groove 341C, a more firm and stable plugging effect is achieved, so that the sealing plug 3C is not easy to fall off after the storage cavity 5C is opened.

The lower cover 2C also includes a second anti-theft ring 213C arranged at the bottom of the lower cover body 21C. The top of the second anti-theft ring 213C is integrally connected to the bottom edge of the lower cover body 21C through a plurality of filamentary structures. This configuration is a conventional technology in this field and is well known to technical personnel in this field, so it will not be elaborated here.

The lower cover body 21C of the lower cover 2C is integrally sleeved on the lower cover cylinder 22C, and a second bottle mouth connecting groove is formed therebetween. The inner wall of the lower cover body 21C is provided with a second inner thread 211C for connecting to the outer thread of the bottle mouth.

It should be noted that in this embodiment, the lower cover cylinder 22C is funnel-shaped, and its cross-sectional inner diameter gradually decreases. The inner wall of the bottom of the lower cover cylinder 22C is sealed and connected to the sealing plug 3C. The funnel-shaped design makes the discharge port formed after the sealing plug 3C is opened more beautiful, and is suitable for powdered solute particles or concentrated liquids with small filling volume and good fluidity, such as frozen dried tea powder, frozen dried coffee powder, tea concentrated liquid, coffee concentrated liquid, etc.

In one embodiment, the instant bottle cap also includes a sealing film 4C. To further enhance the sealing performance, the sealing plug 3C and the lower surface of the lower cover cylinder 22C can be welded with the sealing film 4C by ultrasonic or hot-melt process to cover the gap between the structural parts, so as to achieve a seamless and better sealing effect. At the same time, a protective film is also covered on the upper surface of the upper cover 1C to seal the pressing part 11C, so as to prevent accidental pressing and prevent theft.

The working principle of the instant bottle cap of this embodiment is as follows: first, the upper cover 1C and the lower cover 2C are assembled together, and the two are clamped together by their respective upper clamping parts 151C and lower clamping parts 212C to form a sealed connection, and at the same time, the two form a storage cavity 5C with an opening at the bottom; then, the assembled upper cover 1C and lower cover 2C are inverted, so that the opening at the bottom of the lower cover cylinder 22C faces upward, and the upper cover 1C and the lower cover cylinder 22C are inverted. An appropriate amount of solute is injected into the storage cavity 5C through this opening, and then the plug surface 32C of the sealing plug 3C is assembled to the bottom of the lower cover tube 22C with the plug surface 32C facing the storage cavity 4C, so that the top column 14C of the upper cover 1C is inserted into the clamping hole 34C of the sealing plug 3C to form a firm clamping connection, and at the same time, the plug ring 31C of the sealing plug 3C is sealed and connected with the inner wall of the bottom of the lower cover tube 22C, thereby sealing the solute in the storage cavity 5C. In order to further enhance the sealing performance, the sealing plug 3C and the lower cover tube 22C can be welded with a sealing film 4C by ultrasonic or hot melt process to cover the gap between the structural parts to achieve a seamless and better sealing effect. At the same time, a protective film is also covered on the upper surface of the upper cover 1C, sealing the pressing part 11C, which has the effect of preventing accidental pressing and preventing theft and opening. The instant bottle cap is installed. Furthermore, after the bottle body 200 is purified and filled with water, the instant bottle cap 100 is assembled to the bottle body 200 by an automatic screwing process. The instant bottle cap 100 is provided with a second inner thread 211C, and the bottle mouth of the bottle body 200 is provided with an outer thread. The instant bottle cap 100 and the bottle body 200 are tightened through the second inner thread 211C and the outer thread, and the sealing fit is completed. The bottle using the instant bottle cap is completely produced, processed and assembled.

When in use, tear off the protective film on the upper cover 1C, press the pressing part 11C of the upper cover 1C downward with your fingers, push the top column 14C to drive the sealing plug 3C to move downward, so that the sealing plug 3C is separated from the sealing shield of the inner wall of the lower cover tube 22C, thereby opening the storage chamber 5C, and the solute pre-filled in the storage chamber 5C falls out from the gap between the sealing plug 3C and the bottom of the lower cover tube 22C under the action of gravity, falls into the bottle body 200 and mixes and dissolves with the water in the bottle body 200. After being shaken to mix evenly or left to stand for a period of time to fully dissolve, it can be drunk.

Based on the same concept, the present invention also proposes an instant bottle, as shown in FIG15, comprising a bottle body 200 and the instant bottle cap 100 described in Embodiment 1, Embodiment 2 and Embodiment 3, wherein the bottle mouth of the bottle body 200 is provided with an external thread, the inner wall of the cap body 16A of the instant bottle cap 100 is provided with an internal thread 162A, and the internal thread 162A is connected to the external thread; or, the inner wall of the lower cap body 21B (21C) is provided with an internal thread 211B (211C) for connecting to the external thread of the bottle mouth, and the internal thread 211B (211C) is connected to the external thread.

The above is only the best implementation method of this creation and is not intended to limit this creation. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this creation should be included in the scope of protection of this creation.

100: Ready-to-use bottle cap 200: Bottle body Example 1 1A: Cap body 2A: Sealing plug 3A: Sealing film 4A: Storage chamber 11A: Pressing part 12A: Elastic part 13A: Protective part 14A: Top column 141A: Annular protrusion 15A: Cap cylinder 16A: Cap body 161A: First anti-theft ring 162A: Internal thread 21A: Plug ring 211A: Annular convex sealing line 22A: Plug surface 23A: Plug bottom 24A: Snap-on hole 241A: Annular groove 25A: Supporting partition Example 2 1B: Upper cover 2B: Lower cover 3B: Sealing plug 4B: Sealing film 5B: Storage chamber 11B: Pressing part 12B: Elastic part 13B: Protective part 14B: Top column 141B: Column core 1411B: Annular protrusion 142B: Support wing plate 15B: Upper cover cylinder 151B: Upper clamping part 1511B: Third annular groove 1512B: Fourth annular protrusion 1513B: Fifth annular protrusion 21B: Lower cover body 211B: Internal thread 212B: Lower clamping part 2121B: Third annular protrusion 2122B: Fourth annular groove 2123B: Fifth annular groove 213B: Second anti-theft ring 22B: Lower cover cylinder 31B: Plug ring 311B: Annular convex sealing line 32B: Plug surface 33B: Plug bottom 34B: Snap-on hole 341B: Annular groove 35B: Supporting partition Example 3 1C: Upper cover 2C: Lower cover 3C: Sealing plug 4C: Sealing membrane 5C: Storage chamber 11C: Pressing part 12C: Elastic part 13C: Protective part 14C: Top column 141C: Column core 1411C: Annular protrusion 142C: Support wing plate 15C: Upper cover cylinder 151C: Upper clamping part 1511C: Third annular groove 1512C: Fourth annular protrusion 1513C: Fifth annular protrusion 21C: Lower cover body 211C: Internal thread 212C: Lower clamping part 2121C: Third annular protrusion 2122C: Fourth annular groove 2123C: Fifth annular groove 213C: Second anti-theft ring 22C: Lower cover cylinder 31C: Plug ring 311C: Annular convex sealing line 32C: Plug surface 33C: Plug bottom 34C: Snap-in hole 341C: Annular groove 35C: Supporting partition

In order to more clearly explain the technical solutions in the embodiments of this invention or the prior art, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Figure 1 is a three-dimensional diagram of the instant bottle cap in Example 1 of the present invention; Figure 2 is an exploded view of the instant bottle cap in Example 1 of the present invention; Figure 3 is an exploded view of the instant bottle cap in Example 1 of the present invention; Figure 4 is a cross-sectional view of the instant bottle cap in Example 1 of the present invention; Figure 5 is a three-dimensional diagram of the instant bottle cap in Example 2 of the present invention; Figure 6 is an exploded view of the instant bottle cap in Example 2 of the present invention; Figure 7 is an exploded view of the instant bottle cap in Example 2 of the present invention; Figure 8 is a cross-sectional view of the instant bottle cap in Example 2 of the present invention; Figure 9 is a partial enlarged view of part B in Figure 8 of the present invention; Figure 10 is a three-dimensional diagram of the instant bottle cap in Example 3 of the present invention; Figure 11 is an exploded view of the instant bottle cap in Example 3 of the present invention; Figure 12 is an exploded view of the instant bottle cap in Example 3 of the present invention; Figure 13 is a cross-sectional view of the instant bottle cap in Example 3 of the present invention; Figure 14 is a partial enlarged view of part C in Figure 13 of the present invention; Figure 15 is a schematic diagram of the structure of the instant bottle of the present invention.

1A: Cover

2A: Sealing plug

Claims (10)

A ready-to-use bottle cap includes a cap body and a sealing plug, wherein the cap body and the sealing plug together form a sealed storage cavity, wherein: The cover body includes a pressing part, an elastic part, a protective part, a top column and a cover cylinder formed in one piece. The edge of the pressing part extends outward to form the elastic part. The height of the protective part is greater than the height of the pressing part to prevent the pressing part from being accidentally touched by external force when not in use. The edge of the elastic part extends away from the storage cavity to form the protective part. The top column is arranged below the pressing part, and its lower end is clamped with the sealing plug. The top of the cover cylinder is integrally connected with the edge of the elastic part. The bottom of the cover cylinder is open and is slidably and sealedly connected with the sealing plug to form the storage cavity. The pressing part can drive the elastic part to deform and move downward under the action of external force, and the top column synchronously pushes the sealing plug to move downward, so that the sealing plug is disconnected from the bottom of the cover tube to open the storage chamber; The cover body also includes a cover body and a first anti-theft ring, the cover body is arranged on the outer periphery of the cover tube, and a first bottle mouth connection groove is formed between the cover body and the cover tube, the inner wall of the cover body is provided with an internal thread for connecting with the external thread of the bottle mouth, the first anti-theft ring is arranged at the bottom of the cover body, and the top of the first anti-theft ring is integrally connected with the bottom edge of the cover body through a plurality of filamentary structures. As described in claim 1, the instant bottle cap, wherein the sealing plug comprises an integrally formed plug ring, a plug surface, a plug bottom, a supporting partition and a snap-in hole, the plug ring is arranged on the outer periphery of the plug surface, and the plug ring is sealingly connected to the inner wall of the bottom of the cap tube; the plug surface faces the storage cavity, the snap-in hole is arranged on the plug surface, the bottom of the top column is plugged into the snap-in hole, and at least three supporting partitions are evenly arranged on the plug surface along the diameter of the plug ring, which are used for supporting and fixing the position of the sealing plug after opening. As described in claim 2, the instant bottle cap, wherein an annular groove is provided on the inner wall of the snap-in hole, and an annular protrusion is provided on the outer wall of the bottom of the top column, and the annular protrusion is snap-fitted with the annular groove to achieve a more secure plug-in effect. As described in claim 2, the instant bottle cap, wherein the outer wall of the plug ring is provided with an integrally formed annular convex sealing line, the diameter of the annular convex sealing line is larger than the inner diameter of the cap barrel, and an interference fit is formed between the sealing plug and the cap barrel through the elasticity of the injection molded part to achieve a better sealing effect. The instant bottle cap as described in claim 1 further includes a sealing film, which is a composite material with high barrier properties and is covered on the lower surface of the sealing plug flush with the cap tube by heat sealing or ultrasonic welding technology to completely cover the structural gap between the sealing plug and the bottom of the cap tube to achieve a complete sealing effect. A bottle cap for instant use, comprising an upper cover, a lower cover and a sealing plug, wherein the upper cover, the lower cover and the sealing plug together form a sealed material storage cavity; the upper cover comprises an integrally formed pressing portion, an elastic portion, a protective portion, a top column, an upper cover cylinder and an annular upper clamping portion, the protective portion protrudes upward to form a protective area for accommodating the pressing portion and the elastic portion, and the height of the protective portion is greater than that of the pressing portion; the sealing plug and the lower cover are connected to each other to form a sealing cavity; the sealing cavity is sealed to the upper cover; the sealing cavity is sealed to the lower ... The bottom of the cover is detachably sealed and connected to seal the storage cavity; the top column is integrally arranged below the pressing portion of the upper cover, and its lower end is fixedly connected to the sealing plug; the top column of the upper cover also includes a column core and a plurality of supporting wing plates integrally connected to the pressing portion, and the pressing portion is manually acted downward, the elastic portion is deformed and moves downward, and the top column synchronously pushes the sealing plug downward to separate the sealing plug from the blocking of the lower cover tube, thereby opening the storage cavity. As described in claim 6, the instant bottle cap, wherein the lower cap comprises a lower cap body, a lower cap tube, an annular lower clamping portion and a second anti-theft ring, the upper cap is a structure with a closed top and an open lower end of the upper cap tube; the lower cap is a cylindrical structure with upper and lower openings and the lower cap body is integrally sleeved on the lower cap tube, the upper cap and the lower cap are sealed and clamped by their respective annular upper clamping portions and annular lower clamping portions, thereby enclosing and forming the material storage cavity, and the second anti-theft ring is arranged at the bottom of the lower cap body; The lower end of the upper cover cylinder is provided with a double-ring upper clamping part, and a clamping gap is formed between the double rings of the upper clamping part; the top end of the lower cover body is provided with a double-ring lower clamping part, and a clamping gap is formed between the double rings of the lower clamping part. The upper clamping part and the lower clamping part are alternately inserted into the clamping gap, and the upper clamping part and the lower clamping part are correspondingly provided with annular protrusions and annular grooves, and the annular protrusions and the annular grooves match each other to form a sealing structure. As described in claim 7, the ready-to-use bottle cap, wherein the lower cap cylinder is a cylindrical structure with upper and lower openings, the lower cap body is integrally sleeved on the lower cap cylinder and a second bottle mouth connecting groove is formed between the two, and the inner wall of the lower cap body is provided with an internal thread for connecting to the external thread of the bottle mouth; The sealing plug includes a plug ring, a plug surface, a plug bottom, a snap-on hole and a supporting partition. The plug ring is the part directly sealed and connected to the bottom end of the inner wall of the lower cover cylinder. The plug surface is the end facing the storage cavity, which is a cone with an arc slope. A snap-on hole is provided at the top end of the cone. The top column of the upper cover is plugged into the snap-on hole. The inner wall of the snap-on hole and the outer wall of the top column form corresponding annular protrusions and annular grooves. Three supporting partitions are evenly and vertically arranged on the plug surface and are an integrated structure, which are used to support and fix the sealing plug after it is opened. The instant bottle cap as described in claim 6 further includes a sealing film, which is a composite material with high barrier properties and is covered on the lower surface flush with the sealing plug and the lower cover tube by heat sealing or ultrasonic welding technology to completely cover the structural gap between the sealing plug and the bottom of the lower cover tube, thereby achieving a complete sealing effect. A ready-to-drink bottle comprises a bottle body and a ready-to-drink bottle cap as described in any one of claims 1 to 9 connected to the bottle body.