CN219193128U - Thin-wall-free seamless instant bottle cap and bottle adopting same - Google Patents

Abstract

The utility model relates to a thin-wall-free seamless instant bottle cap and a bottle adopting the same. The top of upper cover is provided with integrated into one piece's pressing portion, cambered surface flexible part and annular protection part. The sealing plug is detachably and hermetically connected with the bottom of the lower cover; the jack-prop is integrally arranged below the pressing part of the upper cover, and the lower end of the jack-prop is fixedly connected with the sealing plug. The utility model integrally adopts a structure without thin wall and seamless, saves materials, has high injection molding processing efficiency of parts and low cost, can greatly reduce the reject ratio of product parts and is easy to realize automatic production; and the whole structure has strong stability and high tightness in the closed state, has high oxygen and moisture resistance, and overcomes the defects of the prior art adopting the technical schemes of puncturing a sealing film or opening a weak layer and the like.

Description

Thin-wall-free seamless instant bottle cap and bottle adopting same

Technical Field

The utility model relates to the technical field of bottle cap manufacturing, in particular to a thin-wall-free seamless instant bottle cap and a bottle adopting the bottle cap.

Background

Along with the continuous improvement of the living standard of people, various beverages are drunk by people. The packaged beverage (such as tea beverage) is sold after solute and water are mixed, in order to prolong the quality guarantee period of the beverage, manufacturers need to add various artificial chemical substances such as preservative, stabilizer and the like into the beverage, so that the taste of the beverage can be influenced, and the chemical substances such as the preservative and the like can cause harm to human bodies to a certain extent, which is not advocated by the current health life concept. Therefore, how to provide a packaged beverage which can be stored for a long period of time without adding artificial preservatives is a serious problem to be solved by the related art. The appearance of ready-to-use bottle caps provides a packaging technology solution for the needs of such healthy beverages.

However, the existing instant bottle cap with such functions usually adopts the structural design of a sealing film or a weak layer, and when in drinking, the sealing film is broken or the weak layer is opened so that solute in the storage cavity flows out to be mixed with water in the bottle. Such designs typically suffer from the following problems:

1. the processing difficulty of the sealing film or the weak layer is high, so that the processing cost is high, for example, the bonding processing space of the sealing film structure is limited, the injection molding process of the weak layer structure is high in difficulty and efficiency, and the production reject ratio is high;

2. the sealing film or the weak layer is thinner due to the structure, so that the stability and the sealing performance of the sealing film or the weak layer are insufficient, the sealing film or the weak layer is insufficient in oxygen and humidity resistance even under the condition of no breakage, and the sealing film or the weak layer is easy to damage in the storage or transportation process, so that the quality of packaged solutes is influenced.

In addition, in order to protect the pressing portion and prevent the pressing portion from being touched by external force in a non-use state, a protection cover is designed for the conventional instant bottle cap with such a function, such as a piston type instant bottle cap disclosed in CN202120660605.9 and a bottle employing the same. The adoption of the protective cover can play a role in protecting the instant bottle cap from false touch, but the integral structure of the instant bottle cap becomes complex, and the manufacturing cost is increased.

Moreover, at present, the existing instant bottle cap with the function adopts a structure that an upper cap cylinder is inserted in a lower cap cylinder, and the upper cap cylinder and the lower cap cylinder are in surface contact, so that the friction force is large, and the problem that the material storage cavity is opened by pressing the upper cap is a little laborious is solved, as disclosed in CN202222462757.5, and the instant bottle cap with negative pressure resistance and the bottle adopting the bottle cap are adopted.

Disclosure of Invention

In view of the above, it is necessary to provide a thin-wall-free and seamless instant bottle cap and a bottle employing the same, so as to solve the problems of the prior art that the sealing film or the weak layer structure is difficult to process, low in efficiency, high in reject ratio, high in cost, and weak in structure, resulting in insufficient stability, sealing property and barrier property, and simultaneously solve the technical problems of increasing a protective cover for preventing the false touch of external force to the pressing part in the non-use state, and large and laborious friction force when the upper cover is pressed to open the storage cavity.

The utility model provides a thin-wall-free seamless instant bottle cap, which comprises: the upper cover, the lower cover and the sealing plug are surrounded to form a closed storage cavity; the upper cover comprises an integrally formed pressing part, a cambered surface flexible part, an annular protection part, a jacking column, an upper cover cylinder and an annular upper clamping part; the annular protection part protrudes upwards to surround a protection area for accommodating the pressing part and the cambered surface flexible part, and the height of the annular protection part is larger than that of the pressing part so as to prevent the pressing part from being touched by external force in a non-use state; the sealing plug is detachably and hermetically connected with the bottom of the lower cover and is used for sealing the storage cavity; the top column is integrally arranged below the pressing part of the upper cover, and the lower end of the top column is fixedly connected with the sealing plug; the manual downward action presses the portion, and the cambered surface flexible portion produces deformation and moves downwards, and the jack posts synchronously push the sealing plug to move downwards so that the sealing plug breaks away from the shielding of the lower cover cylinder and the storage cavity is opened.

Further, the lower cover comprises a lower cover body, a lower cover cylinder, an anti-theft ring and an annular lower clamping part; the upper cover is a structure with a top closed and an opening at the lower end of the upper cover cylinder; the lower cover is of a cylindrical structure with upper and lower openings, and the lower cover body is integrally sleeved on the lower cover cylinder; the upper cover and the lower cover are in sealing clamping connection through the respective annular upper clamping connection part and the annular lower clamping connection part, so that a storage cavity is formed in a surrounding mode.

Further, the lower end of the upper cover is provided with a double-ring upper clamping part, and a clamping gap is formed between the double rings; the upper end of lower cover is provided with the annular lower joint portion of bispin, forms the joint clearance between the dicyclo, thereby goes up joint portion and lower joint portion and inserts in the clearance in turn and form dual joint and reach the sealed effect of reinforcing, goes up the corresponding annular bulge and the annular groove of being provided with in joint portion and the lower joint portion, and annular bulge and annular groove mutually match, form seal structure.

Further, the lower cover cylinder is of a cylindrical structure with an upper opening and a lower opening, the lower cover body is integrally sleeved on the lower cover cylinder, a bottle opening connecting groove is formed between the lower cover cylinder and the lower cover cylinder, and an inner thread is arranged on the inner wall of the lower cover body and is used for connecting with an outer thread of a bottle opening.

Further, the lower cover also comprises an anti-theft ring arranged at the bottom of the lower cover body, and the top of the anti-theft ring is integrally connected with the bottom edge of the lower cover body through a plurality of filament-shaped structures.

Further, the lower cover cylinder is a straight cylinder, and the inner diameter of the lower cover cylinder is kept unchanged along the axis direction.

Further, the lower cover cylinder is funnel-shaped, and the inner diameter of the cross section of the lower cover cylinder is gradually reduced.

Further, the sealing plug includes: the plug ring, the plug surface, the plug bottom, the mounting hole and the supporting partition board are arranged at the part which is directly and hermetically connected with the bottom end of the inner wall of the lower cover cylinder, one end of the plug surface facing the storage cavity is a cone with an arc slope, the top end of the cone is provided with the mounting hole, the top column of the upper cover is spliced with the mounting hole, and annular bulges and annular grooves are correspondingly formed on the inner wall of the mounting hole and the outer wall of the top column so as to achieve a firmer splicing effect; three supporting partition boards are uniformly and vertically arranged on the plug surface and are of an integrated structure and used for supporting and fixing the sealing plug after being opened.

Further, the top post of the upper cover also comprises a post core and a plurality of support wing plates integrally connected with the pressing part.

The utility model provides a bottle adopting a thin-wall and seamless instant bottle cap, which comprises: the bottle body and the thin-wall seamless instant bottle cap are in sealing connection through the external thread and the internal thread.

Compared with the prior art, the thin-wall-free seamless instant bottle cap provided by the utility model has the advantages that the protection area is formed by the protection part of the annular bulge formed by integrally forming the upper cover of the bottle cap to accommodate the pressing part and the cambered surface flexible part, the bottle cap can be formed by one-step injection molding during production, and the pressing part is protected without additionally installing a protective cover, so that the effect of preventing the pressing part from being mistakenly touched by external force in a non-use state is achieved, the structure of the thin-wall-free seamless instant bottle cap is simplified, the parts are saved, and the production cost of the thin-wall-free seamless instant bottle cap is reduced; the production cost of the bottle adopting the bottle cap is also reduced. Meanwhile, the utility model integrally adopts the structural design without sealing film and weak layer, the storage cavity is opened by the displacement of the structural part, the cost of the production, manufacture, processing and assembly of the parts is lower, the reject ratio of the product parts is greatly reduced, the production efficiency is improved, the automatic production is easier to realize, the structural stability of the whole instant bottle cap without thin wall and slit in the closed state of the storage cavity is higher, the sealing performance is higher, the performances of oxygen resistance, moisture resistance and negative pressure resistance are better, and the problems of high processing difficulty, high processing reject ratio and higher cost caused by the structural design of the sealing film or the weak layer in the prior art are overcome, and the sealing film or the weak layer is fragile in structure, so that the stability and the sealing performance are insufficient. In addition, according to the sealing plug structure adopted by the utility model, the contact area between the sealing plug ring and the bottom of the inner wall of the lower cover cylinder is small, so that the friction force is small, and when the product is used, the resistance of manually acting downwards on the pressing part of the upper cover to open the storage cavity is small, so that the labor is saved and the product is smoother.

The foregoing description is only an overview of the present utility model, and is intended to provide a better understanding of the present utility model, as it is embodied in the following description, with reference to the preferred embodiments of the present utility model and its details set forth in the accompanying drawings. Specific embodiments of the present utility model are given in detail by the following examples and the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:

FIG. 1 is a schematic view of an embodiment of a thin-wall seamless instant bottle cap according to the present utility model;

FIG. 2 is an exploded view of one embodiment of a thin-walled seamless instant bottle cap according to the present utility model;

FIG. 3 is an exploded view of another embodiment of a thin-walled seamless ready-to-use closure according to the present utility model;

FIG. 4 is a cross-sectional view of one embodiment of a thin-walled seamless ready-to-use bottle cap according to the present utility model;

FIG. 5 is a schematic view of another embodiment of a thin-wall seamless instant bottle cap according to the present utility model;

FIG. 6 is an exploded view of another embodiment of a thin-walled seamless instant bottle cap according to the present utility model;

FIG. 7 is an exploded view of another embodiment of a thin-walled seamless instant closure according to the present utility model;

FIG. 8 is a cross-sectional view of another embodiment of a thin-walled seamless instant bottle cap according to the present utility model;

fig. 9 is a schematic view of the structure of a bottle provided by the utility model and adopting a thin-wall and seamless instant bottle cap.

Figure number and name: 100. the bottle cap is matched; 200. and (3) a bottle body.

Embodiment one: 1A, an upper cover; 2A lower cover; 3A, a sealing plug; 4A storage cavity; 11A, pressing part; 12A, a cambered surface flexible part; 13A, an annular protection part; 14A, an upper cover cylinder; 15A, upper clamping part; 16A, a jack-prop; 161A, post core; 162A, support wings; 21A, a lower cover body; 22A, a lower cover cylinder; 23A, lower clamping part; 24A, an anti-theft ring; 211A internal threads; 31A, a plug ring; 32A, a plug surface; 33A, a plug bottom; 34A, mounting holes; 35A, supporting the partition plate.

Embodiment two: 1B, an upper cover; 2B, a lower cover; 3B, a sealing plug; 4B, a storage cavity; 11B, pressing part; 12B, a cambered surface flexible part; 13B, an annular protection part; 14B, an upper cover cylinder; 15B, upper clamping part; 16B, a jack-prop; 161B, post core; 162B, support wings; 21B, a lower cover body; 22B, a lower cover cylinder; 23B, lower clamping part; 24B, an anti-theft ring; 211B internal threads; 31B, a plug ring; 32B, a plug surface; 33B, a plug bottom; 34B, mounting holes; 35B, supporting the partition plate.

Detailed Description

Preferred embodiments of the present utility model will now be described in detail with reference to the accompanying drawings, which form a part hereof, and together with the description serve to explain the principles of the utility model, and are not intended to limit the scope of the utility model.

Referring to fig. 1 to 4, the present utility model provides a thin-wall-free and seamless instant bottle cap, which comprises an upper cap 1A, a lower cap 2A and a sealing plug 3A. The upper cover 1A, the lower cover 2A and the sealing plug 3A are surrounded to form a closed storage cavity 4A.

The upper cover 1A is of a structure with a top closed and a lower end open, and the upper cover 1A comprises a pressing part 11A, a cambered surface flexible part 12A, an annular protection part 13A, an upper cover cylinder 14A, an annular upper clamping part 15A and a jacking column 16A, wherein the parts are integrated; the annular protecting portion 13A protrudes upward to surround a protecting area for accommodating the pressing portion 11A and the cambered surface flexible portion 12A, and the height of the annular protecting portion 13A is slightly larger than the height of the pressing portion 11A, so as to prevent the pressing portion 11A from being touched by external force in a non-use state; the sealing plug 3A is detachably and hermetically connected with the bottom of the lower cover 2A and is used for sealing the storage cavity 4A; the top column 16A is integrally provided below the pressing portion 11A of the upper cover 1A, and the lower end thereof is fixedly connected to the sealing plug 3A. The thickness of the cambered surface flexible part 12A is slightly thinner, the deformation easily occurs under the action of external force, the toughness is better, and the rupture is not easy to occur in the deformation process. The manual downward action presses the part 11A, the cambered surface flexible part 12A deforms and moves downwards, the top column 16A synchronously pushes the sealing plug 3A to move downwards so that the sealing plug 3A breaks away from the shielding of the lower cover cylinder 22A, the storage cavity 4A is opened, and solute pre-filled in the storage cavity 4A falls from a gap between the sealing plug 3A and the lower cover cylinder 22A and enters the bottle body 200 to be fused with water or other solvents in the bottle body 200.

The lower cover 2A comprises a lower cover body 21A, a lower cover cylinder 22A, an annular lower clamping part 23A and an anti-theft ring 24A, and the parts are of a one-step formed integral structure; the lower cover 2A has a cylindrical structure with an upper opening and a lower opening, and the lower cover body 21A is integrally sleeved on the lower cover cylinder 22A.

In this embodiment, the lower end of the upper cover 1A is provided with an upper clamping portion 15A in a double-ring shape, a gap is formed between the double rings of the upper clamping portion 15A, the upper end of the lower cover 2A is provided with a lower clamping portion 23A in a double-ring shape, a gap is formed between the double rings of the lower clamping portion 23A, the upper clamping portion 15A and the lower clamping portion 23A are mutually matched sealing clamping structures, the mutually matched double-ring structures are alternately inserted into the gap of each other, and annular protrusions and annular grooves are correspondingly arranged on the upper clamping portion 15A and the lower clamping portion 23A to be matched and clamped, so that a more sealed and firm clamping effect is achieved. Obviously, the greater the number of loops of the upper and lower clamping portions 15A, 23A, the stronger the clamping. But at the same time increases manufacturing and assembly costs. In this embodiment, therefore, the upper cover 1A preferably has two ring upper engaging portions 15A, and the lower cover 2A preferably has two ring lower engaging portions 23A. The applicant finds that the double-ring clamping structure is firm enough to meet the requirement of thorough sealing, and the ultrasonic welding process which is necessary in the single-layer clamping structure is not needed, so that the production cost is further reduced; if a firmer clamping effect is required, the upper clamping part 15A and the lower clamping part 23A can be connected through an ultrasonic welding process, so that the release parts of the upper clamping part and the lower clamping part are fused to form a seamless sealing structure.

In the present embodiment, the sealing plug 3A includes: the sealing plug 3A is of a conical structure, the part which is directly connected with the bottom end of the inner wall of the lower cover cylinder 22A in a sealing way is the sealing plug 31A, one end which faces the storage cavity 4A is the sealing plug surface 32A, the sealing plug surface 32A is conical with an arc slope, the top end of the conical shape is provided with a mounting hole 34A, the top column 16A of the upper cover 1A is spliced with the mounting hole 34A, and annular protrusions and annular grooves which are matched with each other are correspondingly formed on the inner wall of the mounting hole 34A and the outer wall of the top column 16A, so that a firm and stable splicing effect is achieved, and the sealing plug 3A is not easy to fall off after the storage cavity 4A is opened; three supporting partition plates 35A are uniformly and vertically arranged on the plug surface 32A and are of an integrated structure for supporting and fixing the sealing plug 3A after being opened. The plug bottom 33A is a lightweight structure with a plurality of sleeved circular shapes with different sizes, the bottoms of the circular rings are flush, and the bottoms of the sealing plug 3A and the lower cover cylinder 22A are in a flush state after being clamped in place in a sealing manner.

The top post 16A of the upper cover 1A further includes a post core 161A and a plurality of support wings 162A integrally connected to the pressing portion 11A, and the lightweight structure provides the top post 16A with better strength to better withstand downward force.

The lower cover 2A further includes an anti-theft ring 24A disposed at the bottom of the lower cover body 21A, wherein the top of the anti-theft ring 24A is integrally connected with the bottom edge of the lower cover body 21A through a plurality of filament structures, which are well known to those skilled in the art, and are not described herein.

The lower cover body 21A of the lower cover 2A is integrally sleeved on the lower cover cylinder 22A, a bottle opening connecting groove is formed between the lower cover body and the lower cover cylinder, and an inner wall of the lower cover body 21A is provided with an inner thread 211A for connecting with an outer thread of a bottle opening.

In this embodiment, the lower cap cylinder 22A is a straight cylinder, and the inner diameter thereof is kept constant along the axial direction thereof, and the bottom of the inner wall of the lower cap cylinder 22A is in sealing engagement with the sealing plug 3A. The straight-barrel type design enables the discharge hole formed after the sealing plug 3A is opened to be larger, and the straight-barrel type sealing plug is suitable for solute particles or viscous liquid with large filling quantity and poor fluidity, such as meal replacement powder, milk tea ingredients, honey and the like.

An anti-theft ring 154A is further arranged below the connecting portion 153A, and the top of the anti-theft ring 154A is integrally connected with the bottom edge of the connecting portion 153A through a plurality of filament-shaped structures. This arrangement is well known to those skilled in the art and will not be described in detail herein.

In this embodiment, the lower cover 15A includes a lower clamping portion 151A, a lower cover barrel 152A and a connecting portion 153A integrally connected, a discharge port is formed at the lower end of the lower cover barrel 152A, the connecting portion 153A is sleeved outside the lower cover barrel 152A and forms a bottleneck connection groove with the lower cover barrel 152A, and the connecting portion 153A is provided with internal threads in the bottleneck connection groove.

When the thin-wall seamless instant bottle cap is actually produced, processed and assembled, the upper cap 1A and the lower cap 2A are assembled together, and are clamped together through the upper clamping part 15A and the lower clamping part 23A to form sealing connection, and simultaneously form a storage cavity 4A with an opening at the bottom; then the assembled upper cover 1A and lower cover 2A are inverted, the opening at the bottom of the lower cover cylinder 22A is upwards, a proper amount of solute is injected into the storage cavity 4A through the opening, the plug face 32A of the sealing plug 3A faces the storage cavity 4A and is assembled to the bottom of the lower cover cylinder 22A, the top column 16A of the upper cover 1A is inserted into the mounting hole 34A of the sealing plug 3A to form firm clamping connection, and meanwhile, the plug ring 31A of the sealing plug 3A is in sealing connection with the inner wall at the bottom of the lower cover cylinder 22A, so that the solute is sealed in the storage cavity 4A. In order to further enhance the sealing performance, the sealing film can be welded on the lower surface of the sealing plug 3A flush with the lower cover cylinder 22A by adopting an ultrasonic or hot melting process so as to cover the gaps between structural members, thereby achieving a seamless and better sealing effect. Meanwhile, the upper surface of the upper cover 1A is also covered with a layer of sealing film or aluminum foil to seal the protection space, thereby achieving the effects of preventing false pressing and preventing burglary and opening. The thin-wall-free seamless instant bottle cap is installed. Further, after the bottle body 200 is purified and filled with water, the thin-wall and seamless instant-dispensing bottle cap 100 is assembled to the bottle body 200 by an automatic cap screwing process. The thin-wall-free and seamless instant-prepared bottle cap 100 is provided with an internal thread 211A, an external thread is arranged at the bottle mouth of the bottle body 200, the thin-wall-free and seamless instant-prepared bottle cap 100 and the bottle body 200 are screwed tightly and matched in a sealing way through the internal thread 211A and the external thread, and the production processing and the assembly of the installation are completed by adopting the thin-wall-free and seamless instant-prepared bottle cap.

When the bottle is used, the protective film on the upper cover 1A is torn off, the pressing part 11A of the upper cover 1A is pressed downwards by fingers, the jack post 16A is pushed to drive the sealing plug 3A to move downwards, the sealing plug 3A is separated from the sealing shielding of the inner wall of the lower cover cylinder 22A, the storage cavity 4A is opened, solute pre-filled in the storage cavity 4A falls out from a gap between the sealing plug 3A and the bottom of the lower cover cylinder 22A under the action of gravity, falls into the bottle body 200 and is mixed and dissolved with water in the bottle body 200, and the bottle can be drunk after shaking, mixing and standing for a period of time.

Referring to fig. 5 to 8, the present utility model provides a thin-wall-free and seamless instant bottle cap, which comprises an upper cap 1B, a lower cap 2B and a sealing plug 3B. The upper cover 1B, the lower cover 2B and the sealing plug 3B are surrounded to form a closed storage cavity 4B.

The upper cover 1B is of a structure with a top closed and a lower end open, and the upper cover 1B comprises a pressing part 11B, a cambered surface flexible part 12B, an annular protection part 13B, an upper cover cylinder 14B, an annular upper clamping part 15B and a jacking column 16B, wherein the parts are of an integrated structure; the annular protecting portion 13B protrudes upward to surround a protecting area for accommodating the pressing portion 11B and the cambered surface flexible portion 12B, and the height of the annular protecting portion 13B is slightly larger than the height of the pressing portion 11B, so as to prevent the pressing portion 11B from being touched by external force in a non-use state; the sealing plug 3B is detachably and hermetically connected with the bottom of the lower cover 2B and is used for sealing the storage cavity 4B; the top column 16B is integrally provided below the pressing portion 11B of the upper cover 1B, and the lower end thereof is fixedly connected to the sealing plug 3B. The thickness of the cambered surface flexible part 12B is slightly thinner, the deformation easily occurs under the action of external force, the toughness is better, and the rupture is not easy to occur in the deformation process. The manual downward action presses the part 11B, the cambered surface flexible part 12B deforms and moves downwards, the top column 16B synchronously pushes the sealing plug 3B to move downwards so that the sealing plug 3B breaks away from the shielding of the lower cover cylinder 22B to open the storage cavity 4B, and solute pre-filled in the storage cavity 4B falls from a gap between the sealing plug 3B and the lower cover cylinder 22B and enters the bottle body 200 to be fused with water or other solvents in the bottle body 200.

The lower cover 2B comprises a lower cover body 21B, a lower cover cylinder 22B, an annular lower clamping part 23B and an anti-theft ring 24B, and the parts are of a one-step formed integral structure; the lower cover 2B has a cylindrical structure with an upper opening and a lower opening, and the lower cover body 21B is integrally sleeved on the lower cover cylinder 22B.

In this embodiment, the lower end of the upper cover 1B is provided with an upper clamping portion 15B having a double-ring shape, a gap is formed between the double rings of the upper clamping portion 15B, the upper end of the lower cover 2B is provided with a lower clamping portion 23B having a double-ring shape, a gap is formed between the double rings of the lower clamping portion 23B, the upper clamping portion 15B and the lower clamping portion 23B are mutually matched sealing clamping structures, the mutually matched double-ring structures are alternately inserted into the gap of each other, and annular protrusions and annular grooves are correspondingly arranged on the upper clamping portion 15B and the lower clamping portion 23B to be matched and clamped, so as to achieve a more sealed and firm clamping effect. Obviously, the greater the number of rings of the upper and lower clamping portions 15B, 23B, the stronger the clamping. But at the same time increases manufacturing and assembly costs. In this embodiment, therefore, the upper cover 1B preferably has two ring upper engaging portions 15B, and the lower cover 2B preferably has two ring lower engaging portions 23B. The applicant finds that the double-ring clamping structure is firm enough to meet the requirement of thorough sealing, and the ultrasonic welding process which is necessary in the single-layer clamping structure is not needed, so that the production cost is further reduced; if a firmer clamping effect is required, the upper clamping part 15B and the lower clamping part 23B can be connected through an ultrasonic welding process, so that the release parts of the upper clamping part and the lower clamping part are fused to form a seamless sealing structure.

In the present embodiment, the sealing plug 3B includes: the sealing plug 3B is of a conical structure, the part which is directly connected with the bottom end of the inner wall of the lower cover cylinder 22B in a sealing way is the sealing plug 31B, one end which faces the storage cavity 4B is the sealing plug surface 32B which is conical with an arc slope, the top end of the conical shape is provided with a mounting hole 34B, the top column 16B of the upper cover 1B is spliced with the mounting hole 34B, and annular protrusions and annular grooves which are matched with each other are correspondingly formed on the inner wall of the mounting hole 34B and the outer wall of the top column 16A so as to achieve a firm and stable splicing effect, and the sealing plug 3A is not easy to fall off after the storage cavity 4A is opened; three supporting partition plates 35B are uniformly and vertically arranged on the plug surface 32B and are of an integrated structure for supporting and fixing the opened sealing plug 3B. The plug bottom 33B is a lightweight structure with a plurality of sleeved circular shapes with different sizes, the bottoms of the circular rings are flush, and the bottoms of the sealing plug 3B and the lower cover cylinder 22B are in a flush state after being clamped in place in a sealing manner.

The top post 16B of the upper cover 1B further includes a post core 161B and a plurality of support wings 162B integrally connected to the pressing portion 11B, and the lightweight structure provides the top post 16B with better strength to better withstand downward force.

The lower cover 2B further includes an anti-theft ring 24B disposed at the bottom of the lower cover 21B, and the top of the anti-theft ring 24B is integrally connected with the bottom edge of the lower cover 21B through a plurality of filament structures, which are well known to those skilled in the art, and are not described herein.

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

In this embodiment, the lower cover cylinder 22B is funnel-shaped, the inner diameter of the cross section thereof is gradually reduced, and the bottom of the inner wall of the lower cover cylinder 22B is in sealing engagement with the sealing plug 3B. The funnel-shaped design ensures that the discharge hole formed after the sealing plug 3B is opened is more attractive, and is suitable for powdery solute particles or concentrated liquid with small filling quantity and good fluidity, such as freeze-dried tea powder, freeze-dried coffee powder, tea concentrated liquid, coffee concentrated liquid and the like.

When the thin-wall seamless instant bottle cap is actually produced, processed and assembled, the upper cap 1B and the lower cap 2B are assembled together, and are clamped together through the respective upper clamping part 15B and lower clamping part 23B to form sealing connection, and simultaneously form a storage cavity 4B with an opening at the bottom; then the assembled upper cover 1B and lower cover 2B are inverted, the opening at the bottom of the lower cover cylinder 22B is upward, a proper amount of solute is injected into the storage cavity 4B through the opening, the plug face 32B of the sealing plug 3B faces the storage cavity 4B and is assembled to the bottom of the lower cover cylinder 22B, the top column 16B of the upper cover 1B is inserted into the mounting hole 34B of the sealing plug 3B to form firm clamping connection, and meanwhile, the plug ring 31B of the sealing plug 3B is in sealing connection with the inner wall at the bottom of the lower cover cylinder 22B, so that the solute is sealed in the storage cavity 4B. In order to further enhance the sealing performance, the sealing film can be welded on the lower surface of the sealing plug 3B flush with the lower cover cylinder 22B by adopting an ultrasonic or hot melting process so as to cover the gaps between the structural members, thereby achieving a seamless and better sealing effect. Meanwhile, the upper surface of the upper cover 1B is also covered with a layer of sealing film or aluminum foil to seal the protection space, thereby achieving the effects of preventing false pressing and preventing burglary and opening. The thin-wall-free seamless instant bottle cap is installed. Further, after the bottle body 200 is purified and filled with water, the thin-wall and seamless instant-dispensing bottle cap 100 is assembled to the bottle body 200 by an automatic cap screwing process. The thin-wall-free and seamless instant-prepared bottle cap 100 is provided with an internal thread 211B, an external thread is arranged at the bottle mouth of the bottle body 200, the thin-wall-free and seamless instant-prepared bottle cap 100 and the bottle body 200 are screwed tightly and matched with each other in a sealing way through the internal thread 211B and the external thread, and the production, the processing and the assembly of the installation of the bottle with the thin-wall-free and seamless instant-prepared bottle cap are completed.

When the bottle is used, the protective film on the upper cover 1B is torn off, the pressing part 11B of the upper cover 1B is pressed downwards by fingers, the pushing jack post 16B drives the sealing plug 3B to move downwards, the sealing plug 3B is separated from the sealing shielding of the inner wall of the lower cover cylinder 22B, the storage cavity 4B is opened, solute pre-filled in the storage cavity 4B falls out from a gap between the sealing plug 3B and the bottom of the lower cover cylinder 22B under the action of gravity, falls into the bottle body 200 and is mixed and dissolved with water in the bottle body 200, and the bottle can be drunk after shaking, mixing and standing for a period of time.

Compared with the prior art, the thin-wall-free seamless instant bottle cap provided by the utility model has the advantages that the protection area is formed by the protection part of the annular bulge formed by integrally forming the upper cover of the bottle cap to accommodate the pressing part and the cambered surface flexible part, the bottle cap can be formed by one-step injection molding during production, and the pressing part is protected without additionally installing a protective cover, so that the effect of preventing the pressing part from being mistakenly touched by external force in a non-use state is achieved, the structure of the thin-wall-free seamless instant bottle cap is simplified, the parts are saved, and the production cost of the thin-wall-free seamless instant bottle cap is reduced; the production cost of the bottle adopting the bottle cap is also reduced. Meanwhile, the utility model integrally adopts the structural design without sealing film and weak layer, the storage cavity is opened by the displacement of the structural part, the cost of the production, manufacture, processing and assembly of the parts is lower, the reject ratio of the product parts is greatly reduced, the production efficiency is improved, the automatic production is easier to realize, the structural stability of the whole instant bottle cap without thin wall and slit in the closed state of the storage cavity is higher, the sealing performance is higher, the performances of oxygen resistance, moisture resistance and negative pressure resistance are better, and the problems of high processing difficulty, high processing reject ratio and higher cost caused by the structural design of the sealing film or the weak layer in the prior art are overcome, and the sealing film or the weak layer is fragile in structure, so that the stability and the sealing performance are insufficient. In addition, according to the sealing plug structure adopted by the utility model, the contact area between the sealing plug ring and the bottom of the inner wall of the lower cover cylinder is small, so that the friction force is small, and when the product is used, the resistance of manually acting downwards on the pressing part of the upper cover to open the storage cavity is small, so that the labor is saved and the product is smoother.

The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model.

Claims (10)

1. A thin-walled seamless ready-to-use closure, comprising: the upper cover, the lower cover and the sealing plug are surrounded to form a closed storage cavity; the upper cover comprises an integrally formed pressing part, an arc surface flexible part, an annular protection part, a top column, an upper cover cylinder and an annular upper clamping part; the annular protection part protrudes upwards to surround a protection area for accommodating the pressing part and the cambered surface flexible part, and the height of the annular protection part is larger than that of the pressing part so as to prevent the pressing part from being touched by external force in a non-use state; the sealing plug is detachably and hermetically connected with the bottom of the lower cover and is used for sealing the storage cavity; the top column is integrally arranged below the pressing part of the upper cover, and the lower end of the top column is fixedly connected with the sealing plug; the manual downward action presses the portion, and the cambered surface flexible portion produces deformation and moves downwards, and the jack posts synchronously push the sealing plug to move downwards so that the sealing plug breaks away from the shielding of the lower cover cylinder and the storage cavity is opened.

2. The thin-walled seamless ready-to-use closure of claim 1 wherein the lower cap comprises a lower body, a lower cap barrel, an anti-theft ring, and an annular lower snap-in portion; the upper cover is of a structure that the top is closed and the lower end of the upper cover cylinder is opened; the lower cover is of a cylindrical structure with upper and lower openings, and the lower cover body is integrally sleeved on the lower cover cylinder; the upper cover and the lower cover are in sealing clamping connection through respective annular upper clamping connection parts and annular lower clamping connection parts, so that a storage cavity is formed in an encircling mode.

3. The thin-wall-free and seamless instant bottle cap according to claim 2, wherein a double-ring-shaped upper clamping part is arranged at the lower end of the upper cap, and a clamping gap is formed between the double rings; the upper end of lower cover is provided with the lower joint portion of double annular, form the joint clearance between the dicyclo, go up joint portion with thereby lower joint portion inserts in turn in the clearance forms dual joint and reaches the effect of reinforcing seal, go up joint portion with correspond in the joint portion down and be provided with annular bulge and annular groove, annular bulge with annular groove mutually matches, forms seal structure.

4. The thin-wall-free and seamless instant bottle cap according to claim 3, wherein the lower cap barrel is of a cylindrical structure with an upper opening and a lower opening, the lower cap body is integrally sleeved on the lower cap barrel, a bottle opening connecting groove is formed between the lower cap body and the lower cap barrel, and an inner thread is arranged on the inner wall of the lower cap body and is used for connecting with an outer thread of a bottle opening.

5. The thin-walled seamless instant bottle cap of claim 4, wherein the lower cap further comprises an anti-theft ring disposed at the bottom of the lower cap body, the top of the anti-theft ring being integrally connected to the bottom edge of the lower cap body by a plurality of filament-like structures.

6. The thin-walled seamless ready-to-use closure of claim 4 wherein the lower cap barrel is a straight barrel with an inside diameter that remains constant along its axis.

7. The thin-walled seamless ready-to-use closure of claim 4 wherein the lower cap barrel is funnel-shaped with a gradually decreasing inside diameter in cross section.

8. The thin-walled seamless ready-to-use closure of claim 1 wherein the sealing plug comprises: the plug ring is arranged at the part which is directly and hermetically connected with the bottom end of the inner wall of the lower cover cylinder, the plug surface is arranged at one end which faces the storage cavity and is in a cone shape with an arc slope, the top end of the cone shape is provided with a mounting hole, the top column of the upper cover is inserted into the mounting hole, and annular protrusions and annular grooves are correspondingly formed on the inner wall of the mounting hole and the outer wall of the top column so as to achieve a firmer insertion effect; three supporting partition boards are uniformly and vertically arranged on the plug surface and are of an integrated structure and used for supporting and fixing the sealing plug after being opened.

9. The thin-walled, seamless, ready-to-use closure of claim 1 wherein the top post of the top closure further comprises a post core and a plurality of support wings integrally connected to the snap-on portion.

10. A bottle adopting a thin-wall-free and seamless instant bottle cap, which is characterized by comprising the thin-wall-free and seamless instant bottle cap and a bottle body according to any one of claims 1-9, wherein an internal thread is arranged on the thin-wall-free and seamless instant bottle cap, an external thread corresponding to the internal thread is arranged at the bottle mouth of the bottle body, and the bottle body and the thin-wall-free and seamless instant bottle cap are in sealing connection through the external thread and the internal thread.

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