CN114560176A

CN114560176A - Bottle cap, container and opening method of container

Info

Publication number: CN114560176A
Application number: CN202210264558.5A
Authority: CN
Inventors: 张大朋
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-03-17
Filing date: 2022-03-17
Publication date: 2022-05-31
Anticipated expiration: 2042-03-17
Also published as: EP4495026A1; US20250361065A1; CN114560176B; WO2023174364A1

Abstract

The invention relates to the technical field of containers, and provides a bottle cap, a container and a method for opening the container. The bottle cap includes a connected cap body and a cap ring, the cap body is provided with an extension strip, and the first end of the extension strip is integrally connected with the cap body; the cap ring is provided with an extension strip for the extension strip to pass through. the escape part and the U-shaped strip surrounding the extension strip, the opening of the U-shaped strip is integrally connected with the escape part, and the bottom of the U-shaped strip is integrally connected with the second end of the extension strip; Between the cover body and the cover ring, between the side wall of the extension strip and the U-shaped strip, and between the side wall of the U-shaped strip and the escape portion, a breakable part is provided. connecting teeth. The bottle cap of the present invention is composed of a connected cap body and a cap ring, so that the bottle cap is always connected with the container during use, and will not be dropped and lost, thereby facilitating the use of the bottle cap and improving the recovery rate of the bottle cap; The manufacturing cost is low, and it can be applied to high-speed production lines.

Description

Bottle cap, container and opening method of container

Technical Field

The invention relates to the technical field of containers, in particular to a bottle cap, a container and a container opening method.

Background

Containers, such as beverage bottles and the like, are composed of a body and a cap and can be used for containing fluid products. The general structure of the container is: the bottleneck of body sets up the screw thread, and the screw thread below sets up the bottle ring, and the bottle lid includes separable lid and cover ring.

Under the initial state, the lid spiro union is in bottleneck, and the cover ring is fixed on the bottle ring, is connected through tiny plastic strip between lid and the cover ring.

When the bottle cap is opened, the cap body is rotated to break the tiny plastic strips, so that the cap body leaves the bottle opening, the cap ring is left on the bottle ring, and the cap body is separated from the cap ring. After use, the cover body is covered back to the bottle mouth. When the bottle cap is used next time, the actions are repeated, the cap body is rotated away from the bottle mouth and separated from the cap ring, and the cap body is covered again after the use is finished.

Above-mentioned container, because lid and cover ring separation set up, often can appear can not finding the circumstances of lid after using up, and when retrieving because the lid loses and human cost scheduling problem has not had the way to retrieve the lid alone, causes the wasting of resources and environmental pollution.

It is to be noted that the information disclosed in the above background section is only for enhancement of understanding of the background of the invention and therefore may include information that does not constitute prior art that is already known to a person of ordinary skill in the art.

Disclosure of Invention

In view of the above, the invention provides a bottle cap, a container and a method for opening a container, wherein the bottle cap is composed of a cap body and a cap ring which are connected, so that the bottle cap is always connected with the container in the using process and cannot fall off or be lost, thereby facilitating the use of a user and improving the recovery rate of the bottle cap; and the manufacturing cost of the bottle cap is low, and the bottle cap can be suitable for a high-speed production line.

One aspect of the present invention provides a bottle cap, including a cap body and a cap ring connected to each other, wherein the cap body is provided with an extension strip, and a first end of the extension strip is integrally connected to the cap body; the cover ring is provided with an avoiding part for the extension strip to pass through and a U-shaped strip wrapping the extension strip, the opening of the U-shaped strip is integrally connected with the avoiding part, and the bottom of the U-shaped strip is integrally connected with the second end of the extension strip; breakable connecting teeth are arranged between the cover body and the cover ring, between the side wall of the extension strip and the U-shaped strip, and between the side wall of the U-shaped strip and the avoiding part.

In some embodiments, in the cap opening process, as the cap body spirally rises along the bottle mouth of the container, the cap ring is fastened to the limiting ring below the bottle mouth to rotate, the connecting teeth are broken, and the extending strip and the U-shaped strip are pulled apart until the cap body leaves the bottle mouth.

In some embodiments, the extension strip and the U-shaped strip are drawn apart by a total length greater than a height of the finish.

In some embodiments, in a state where the bottle cap is completely opened, the cap body is hung to the stopper ring sequentially through the extension bar, the U-shaped bar, and the cap ring.

In some embodiments, in an initial closing state of the bottle cap, the cap body is screwed tightly to a bottle mouth of a container, the cap ring is tightly clamped to a limiting ring below the bottle mouth, and the extension strip and the U-shaped strip are locked to the avoiding portion.

In some embodiments, the extension strip extends from the open end of the cover in a direction away from the closed end of the cover; the avoiding part is formed into a door-shaped groove with the top disconnected, the extending strip penetrates through the disconnected part of the door-shaped groove, and the opening of the U-shaped strip is integrally connected with the lower end face of the disconnected part.

In some embodiments, the extension bar and the U-shaped bar are completely received by the relief portion; alternatively, the extension bar and the U-shaped bar are partially accommodated in the escape portion.

In some embodiments, the cover, the extension strip, the U-shaped strip, the cover ring, and the connecting teeth are integrally injection molded.

In another aspect, the invention provides a container, which comprises a bottle mouth with threads and a limiting ring arranged below the bottle mouth, and the container further comprises the bottle cap of any embodiment; the cover body is in threaded connection with the bottle opening, and the threads are at least used for screwing the cover body in an initial covering state and providing a spiral lifting stroke of the cover body in the cover opening process; the cover ring is buckled on the limiting ring, and the limiting ring is used for clamping the cover ring in the initial covering state and always limiting the axial movement of the cover ring.

In some embodiments, the container further comprises a bottle clamping ring disposed on the neck portion; when the outer diameter of the bottle clamping ring is larger than that of the cover ring, the extension strip and the U-shaped strip are both in a step shape so as to avoid the bottle clamping ring from extending towards the bottle body of the container.

A further aspect of the present invention provides a method of opening a cover of a container, applied to the container described above, the method including a first stroke and a second stroke of continuously rotating the cover in a first direction; in the first stroke, the cover ring rotates along with the spiral rising of the cover body, and the connecting teeth are broken; in the second stroke, the cover ring spirally rises along with the cover body, the cover ring rotates along with the cover body, the extension strip and the U-shaped strip are pulled open, and the cover body leaves the bottle opening and is connected to the limiting ring through the cover ring in a hanging mode.

Compared with the prior art, the invention has the beneficial effects that:

the bottle cap consists of a cap body and a cap ring which are connected with each other, wherein the cap body and the cap ring are always connected together;

in the initial closing state, the cover ring is tightly clamped on the limiting ring below the bottle opening of the container, the cover body is tightly screwed on the bottle opening, and the cover body and the cover ring are locked through the longitudinal thin and short connecting teeth, so that the stability of the bottle cap is ensured, and the bottle cap is prevented from being loosened during transportation, storage and the like;

in the initial covering state, although the initial continuity of the cover ring is damaged due to the avoiding part, the extending strip integrally connected with the cover body penetrates through the avoiding part of the cover ring and wraps the U-shaped strip integrally connected with the avoiding part of the cover ring, and the extending strip, the U-shaped strip and the avoiding part are locked by transverse thin and short connecting teeth, so that the stability of the cover ring can be ensured, the cover ring still forms a continuous annular structure, and in addition, the extending strip and the U-shaped strip can be ensured to be tightly attached to the bottle mouth to avoid warping and deformation;

in the cover opening process, the cover ring is always buckled on the limiting ring to rotate along with the spiral rising of the cover body, so that the connecting teeth are broken, the extending strip and the U-shaped strip are pulled apart, and the cover body is smoothly separated from the bottle opening;

when the cover is opened, the cover body is still hung on the limiting ring through the cover ring, so that the cover body is prevented from falling and losing, and the cover body is covered on the bottle opening after the use is convenient;

the bottle cap can be always connected with a container only after being assembled to the container, so that the bottle cap is convenient to use, the recovery rate of the bottle cap can be improved, the cyclic utilization of resources is realized, and the environment is protected; and the bottle cap has low integral manufacturing cost and high production efficiency, and is suitable for high-speed production lines.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention. It is obvious that the drawings described below are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

Fig. 1 is a schematic front view illustrating a bottle cap according to an embodiment of the present invention;

fig. 2 is a schematic sectional view illustrating a bottle cap according to an embodiment of the present invention;

fig. 3 is a schematic view illustrating a structure of a bottle cap according to an embodiment of the present invention after a connecting tooth is broken;

fig. 4 is a schematic view illustrating a structure in which a cap body of a bottle cap according to an embodiment of the present invention is spirally raised;

fig. 5 is a schematic view illustrating a structure in which a cap body of the bottle cap is separated from a bottle opening according to an embodiment of the present invention;

fig. 6 is a schematic front view showing a structure of a bottle cap according to another embodiment of the present invention;

fig. 7 is a schematic sectional view illustrating a bottle cap according to still another embodiment of the present invention;

fig. 8 is a schematic view showing steps of a method of opening a cover of a container according to an embodiment of the present invention.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art.

The figures are merely schematic illustrations of the invention and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repetitive description will be omitted.

In addition, the flow shown in the drawings is only an exemplary illustration, and not necessarily includes all the steps. For example, some steps may be broken down, some steps may be combined or partially combined. The use of "first," "second," and similar terms in the detailed description is not intended to imply any order, quantity, or importance, but rather is used to distinguish one element from another. It should be noted that features of the embodiments of the invention and of the different embodiments may be combined with each other without conflict.

In addition, the accompanying drawings show the bottle cap and the neck portion of the container in the schematic structural view of the bottle cap for clearly showing the structure of the bottle cap and the matching relationship of the bottle cap and the container, which is not intended to limit the protection scope of the present invention. The invention provides a separate bottle cap, a container comprising the bottle cap and a method for opening the cover of the container.

Fig. 1 illustrates a front view structure of a bottle cap according to an embodiment, and referring to fig. 1, the bottle cap according to the embodiment includes a cap body 1 and a cap ring 2 connected to each other, the cap body 1 is provided with an extension bar 11, and a first end 11a of the extension bar 11 is integrally connected to the cap body 1; the cover ring 2 is provided with an avoidance part 20 for the extension strip 11 to pass through and a U-shaped strip 21 wrapping the extension strip 11, an opening 21a of the U-shaped strip 21 is integrally connected with the avoidance part 20, and the bottom 21b of the U-shaped strip 21 is integrally connected with the second end 11b of the extension strip 11; breakable connecting teeth 3 are arranged between the cover body 1 and the cover ring 2, between the side wall of the extension strip 11 and the U-shaped strip 21, and between the side wall of the U-shaped strip 21 and the escape part 20.

The bottle cap consists of a cap body 1 and a cap ring 2 which are connected, wherein the cap body 1 and the cap ring 2 are always connected together.

Fig. 2 shows a cross-sectional structure of the bottle cap in an embodiment, and as shown in fig. 1 and fig. 2, in an initial closing state, the cap body 1 is screwed tightly on the bottle mouth 61 of the container 6, the cap ring 2 is clamped on the limiting ring 62 below the bottle mouth 61, and the extension strip 11 and the U-shaped strip 21 are locked on the avoiding portion 20.

Through the chucking of lid ring 2 in

spacing ring

62, 1 spiral shell of lid is tight in bottleneck 61, and locks through fore-and-aft thin short connecting teeth 3 between lid 1 and the lid ring 2, ensures the stability of bottle lid, avoids the bottle lid not hard up during transportation, storage etc..

Moreover, although the cover ring 2 breaks the initial continuity due to the relief part 20, the extension strip 11 integrally connected with the cover body 1 passes through the relief part 20 of the cover ring 2 and wraps in the U-shaped strip 21 integrally connected with the relief part 20 of the cover ring 2, and the extension strip 11, the U-shaped strip 21 and the relief part 20 are locked together through the transverse thin and short connecting teeth 3, so that the stability of the cover ring 2 is ensured, and the cover ring 2 is still formed into a continuous annular structure; the coupling teeth 3 formed between the extension bar 11, the U-shaped bar 21, and the escape portion 20 can prevent the extension bar 11 and the U-shaped bar 21 from being warped or deformed by being closely attached to the bottle mouth 61.

Fig. 3 shows a structure of the bottle cap in an embodiment after the connecting teeth are broken, fig. 4 shows a structure of the cap body of the bottle cap in the embodiment spirally rising, and fig. 5 shows a structure of the cap body of the bottle cap in the embodiment leaving the bottle mouth. Referring to fig. 1 to 5, in the process of opening the cap, as the cap body 1 spirally rises along the bottle mouth 61 of the container 6, the cap ring 2 is fastened on the limit ring 62 below the bottle mouth 61 to rotate, the connecting teeth 3 are broken, and the extension strip 11 and the U-shaped strip 21 are pulled apart until the cap body 1 leaves the bottle mouth 61.

Specifically, during the opening of the lid, the lid body 1 is continuously rotated in the opening direction, for example, the counterclockwise direction R. Due to the action of the connecting teeth 3, the extending strips 11 and the U-shaped strips 21, the cover ring 2 is driven by the cover body 1, and meanwhile, the cover ring 2 is limited by the limiting ring 62 to move axially; therefore, as the cover body 1 spirally rises, the cover ring 2 is always locked on the limit ring 62 to rotate.

When the cover body 1 moves upward by a certain distance, the connecting teeth 3 are broken due to the force between the cover body 1 and the cover ring 2, and the state shown in fig. 3 is presented. Due to the breakage of the coupling teeth 3, as shown in fig. 3, the extension bar 11 and the U-shaped bar 21 are slightly warped so that the extension bar 11 and the U-shaped bar 21 are gradually pulled apart.

As the cap 1 continues to move upwards, as shown in fig. 4, the extension strip 11 and the U-shaped strip 21 are pulled apart in the height direction Y to ensure that the cap 1 continues to screw up along the threads of the bottle mouth 61. The extension strip 11 and the U-shaped strip 21 are designed to ensure that the total length of the pull-apart strip is greater than the height of the bottle mouth 61, so that the cap body 1 can be smoothly rotated away from the bottle mouth 61.

As shown in fig. 1 and 4, in the present invention, the contact end portions of the extension bars 11 and the U-shaped bars 21 (i.e., the second ends 11b of the extension bars 11 and the bottoms 21b of the U-shaped bars 21) are integrally connected, the non-contact end portions (i.e., the first ends 11a of the extension bars 11 and the openings 21a of the U-shaped bars 21) are integrally connected to the cover body 1 and the cover ring 2, respectively, and the U-shaped bars 21 surround the extension bars 11; therefore, on the one hand, the self lengths of the extension strips 11 and the U-shaped strips 21 can be fully utilized, the total length of the extension strips 11 and the U-shaped strips 21 after being pulled away is close to (slightly smaller than) the sum of the self lengths of the extension strips 11 and the U-shaped strips 21, on the other hand, the extension strips 11 and the U-shaped strips 21 do not occupy too much space in a covering state, so that the whole stability of the bottle cap is high, and the whole volume of the bottle cap is hardly increased.

The cap 1 can be separated from the bottle mouth 61 by continuing to rotate the cap 1, and the state shown in fig. 5 is assumed. Under the state that uncapping shown in fig. 5 is accomplished, lid 1 loops through extension strip 11, U type strip 21 and lid ring 2 and articulates in spacing ring 62, can avoid lid 1 to drop and lose, and covers lid 1 back to bottleneck 61 after facilitating the use is accomplished.

Under the state is accomplished in uncapping, because the existence of extension strip 11 and U type strip 21 and the relation of connection, lid 1 can leave bottleneck 61 a distance (the distance that lid 1 leaves bottleneck 61 slightly is less than the total length that extension strip 11 and U type strip 21 pull open), guarantee that the user can conveniently drink the beverage of splendid attire in the container 6 from bottleneck 61 this moment, can not influence the use of bottleneck 61 because lid 1 is too near apart from bottleneck 61, and extension strip 11 and U type strip 21 have certain intensity, can not cause lid 1 to rock at will, can realize under the state of uncapping lid 1 and keep in the suitable distance near bottleneck 61.

After use, the cap 1 can be closed back to the bottle mouth 61. When the cover body 1 is screwed tightly, the extension bar 11 is received in the U-shaped bar 21, and the extension bar 11 and the U-shaped bar 21 return to the escape portion 20 of the cover ring 2, and the state shown in fig. 3 is presented.

Foretell bottle lid as long as with its assembly to container 6 back, just can be linked together with container 6 all the time, not only facilitate the use, can also promote the rate of recovery of bottle lid, realize resource cyclic utilization, the environmental protection.

Moreover, the bottle cap is formed by integrally injection molding the components of the bottle cap, namely the cap body 1, the extension strip 11, the U-shaped strip 21, the cap ring 2 and the connecting teeth 3, so that the injection cost of the bottle cap can be reduced, the demolding is convenient, the blockage is avoided, the production efficiency is improved, the bottle cap can be conveniently covered on the bottle mouth of a container, and the bottle cap is suitable for a high-speed production line. In addition, the injected material may be plastic, so that the formed extension strip 11 and the U-shaped strip 21 have certain flexibility to facilitate the pulling apart thereof; the extension bar 11 and the U-shaped bar 21 have a certain strength so as to support the lid body 1 in the open state.

In one embodiment, as shown in fig. 1 and 5 in combination, the extension strip 11 extends from the open end 1a of the cover 1 in a direction away from the closed end 1b of the cover 1; the escape portion 20 is formed as a gate-shaped groove with a broken top (i.e., formed as a groove with a broken top)

Structure), the extension bar 11 passes through the broken part of the door-shaped groove, and the opening 21a of the U-shaped bar 21 is integrally connected with the lower end face of the broken part.

As shown in fig. 1, the extension bar 11 and the U-shaped bar 21 are partially accommodated in the escape portion 20; fig. 6 shows a front view of the bottle cap according to another embodiment, as shown in fig. 6, the extension bar 11 and the U-shaped bar 21 are completely received in the escape portion 20; depending on the total length of the extension strip 11 and the U-shaped strip 21 required after pulling apart. For example, when applied to containers having different finish heights, the extension strip 11 may itself be from 1 cm to 50 cm in length, or even longer.

In the bottle cap, the cap ring 2 is not a 360-degree continuous ring but is provided with an opening; the opening extends downwards to exceed the lower edge of the cover ring 2 to form a U-shaped strip 21, and the bottom of the U-shaped strip 21 is connected with the extension strip 11 of the cover body 1, so that the effect that the bottle cap can be pulled upwards in multiples (the extension strip 11+ the U-shaped strip 21) is achieved. In addition, the function of the cover ring 2 is achieved by the aid of the breakable connecting teeth 3 and a continuous structure of 360 degrees is maintained, and the aim that the bottle cover and the bottle body are connected into a whole after the cover is opened is achieved.

The cover ring 2 still keeps a circular ring structure through the connecting teeth 3, extrusion resistance and impact resistance of the cover ring 2 can be realized, and the cover ring 2 can be stacked together without deformation during transportation; after being transported to the destination, the cover rings 2 are conveniently separated and transported to the operation place where the bottle bodies are covered by the conveyor belt. The bottle cap is simple in overall structure, compact in design, firm and durable, capable of being formed by high-speed injection, convenient to transport, free to roll, free of distortion, capable of meeting the production requirements of the filling line and capable of meeting the production efficiency of the filling line.

Embodiments of the present invention also provide a container including a bottle cap as described in any of the above embodiments. The features and principles of the closure described in any of the above embodiments may be applied to the following container embodiments. In the following embodiments of the container, the characteristics and principles of the bottle cap and the assembling relationship between the bottle cap and the container, which have been already explained, will not be repeated.

As shown in any of fig. 1 to 6, the container 6 includes a bottle mouth 61 provided with threads and a limit ring 62 provided below the bottle mouth 61, the cap body 1 is screwed on the bottle mouth 61, the threads of the bottle mouth 61 are at least used for screwing the cap body 1 in an initial closing state and providing a spiral ascending stroke of the cap body 1 in a cap opening process (and also providing a spiral descending stroke of the cap body 1 in a closing process); the cover ring 2 is buckled on the limit ring 62, and the limit ring 62 is used for clamping the cover ring 2 in an initial covering state and always limiting the axial movement of the cover ring 2.

In the initial covering state, the cover body 1 is screwed tightly on the bottle mouth 61, the cover ring 2 is tightly clamped on the limiting ring 62, and the cover body 1 and the cover ring 2 are locked through the longitudinal thin and short connecting teeth 3, so that the stability of the bottle cap is ensured, and the bottle cap is prevented from being loosened in the transportation process of the container 6; in addition, in the initial closing state, the extension strip 11 integrally connected with the cover body 1 penetrates through the avoiding part 20 of the cover ring 2 and wraps in the U-shaped strip 21 integrally connected with the avoiding part 20 of the cover ring 2, and the extension strip 11, the U-shaped strip 21 and the avoiding part 20 are locked through the transverse thin and short connecting teeth 3, so that the stability of the cover ring 2 can be ensured, the extension strip 11 and the U-shaped strip 21 can be ensured to be tightly attached to the bottle mouth 61, and the buckling and the deformation can be avoided; in the cover opening process, the cover body 1 spirally rises along the bottle mouth 61, the cover ring 2 is always buckled on the limit ring 62 to rotate along with the cover body, so that the connecting teeth 3 are broken, the extension strip 11 and the U-shaped strip 21 are pulled apart, and the cover body 1 smoothly leaves the bottle mouth 61; under the state that uncaps and accomplish, lid 1 still articulates on spacing ring 62 through extension strip 11, U type strip 21 and cover ring 2, avoids dropping and loses, and covers lid 1 back bottleneck 61 after facilitating the use is accomplished.

Foretell container 6 can ensure that the bottle lid is connected all the time on container 6, and not only facilitate the use can also promote the rate of recovery of bottle lid, realizes resource cyclic utilization, environmental protection. Moreover, all the components of the bottle cap, namely the cap body 1, the extension strip 11, the U-shaped strip 21, the cap ring 2 and the connecting teeth 3, are integrally injection molded, so that the bottle cap is suitable for a high-speed production line; and the bottle cap can be conveniently covered on the bottle mouth of the container 6, so that the overall production efficiency of the container 6 is improved.

In addition, the container 6 may further include a bottle clamping ring 63 at a neck portion thereof, and the bottle clamping ring 63 may help the container 6 to be filled on a production line (the production line is provided with a mechanical gripper capable of gripping the container 6 by the bottle clamping ring 63), and improve stability and efficiency in transportation and capping.

In the embodiment of fig. 1 to 6, the outside diameter of the bottle clamping ring 63 is smaller than the outside diameter of the cover ring 2. In some cases, the outside diameter of the clamp ring may also be greater than or equal to the outside diameter of the cover ring to facilitate gripping of the container by the clamp ring with a mechanical gripper. Fig. 7 shows a cross-sectional view of a bottle cap in a further embodiment, which is shown in fig. 7, in which the outside diameter of the bottle clamping ring 63 is larger than the outside diameter of the cap ring 2. At this time, the extension bar 11 and the U-shaped bar 21 are stepped to extend toward the body while avoiding the bottle clamping ring 63.

The embodiment of the invention also provides a method for opening the cover of the container, which is applied to the container described in the embodiment. The features and principles of the closure described in any of the above embodiments, and the features and principles of the container described in any of the above embodiments, may be applied to the following embodiment of the opening method. In the following embodiments of the opening method, the features and principles that have been elucidated with respect to the closure and the container are not repeated.

Fig. 8 illustrates the main steps of the method of opening the cover of the container in one embodiment, and referring to fig. 8, the method of opening the cover of the container includes a first stroke S810 and a second stroke S820 for continuously rotating the cover body in a first clock direction; in a first stroke S810, the cover body is rotated along the first time hand direction, so that the cover ring rotates along with the spiral rising of the cover body and the connecting teeth are broken; in a second stroke S820, the cap continues to rotate in the first direction of the clock pin, so that the cap rises spirally along with the cap, the cap ring rotates along with the cap, the extension strip and the U-shaped strip are pulled apart, and the cap leaves the bottle opening and is connected to the limit ring through the cap ring.

The cooperation between the bottle cap and the container during the uncapping process is shown in conjunction with fig. 1 to 5.

In the initial closing state shown in fig. 1 and 2, the cap body 1 is screwed tightly on the bottle mouth 61 of the container 6, the cap ring 2 is tightly clamped on the limiting ring 62 below the bottle mouth 61, and the cap body 1 and the cap ring 2 are locked by the longitudinal thin and short connecting teeth 3, so that the stability of the bottle cap is ensured; in addition, the extension strip 11 integrally connected with the cover body 1 penetrates through the avoiding part 20 of the cover ring 2 and is wrapped in the U-shaped strip 21 integrally connected with the avoiding part 20 of the cover ring 2, and the extension strip 11, the U-shaped strip 21 and the avoiding part 20 are locked through the transverse thin and short connecting teeth 33, so that the stability of the cover ring 2 is further improved, the extension strip 11 and the U-shaped strip 21 are ensured to be tightly attached to the bottle mouth 61, and warping and deformation are avoided.

In the broken state of the connecting teeth 3 shown in fig. 3, the cover body 1 is rotated along the first clock direction (counterclockwise direction R), the cover ring 2 is fastened on the limit ring 62 to rotate, after the cover body 1 moves upward for a certain distance, the connecting teeth 3 are broken due to the acting force between the cover body 1 and the cover ring 2, and the extending strips 11 and the U-shaped strips 21 are slightly warped.

In the spirally rising state of the cap body 1 shown in fig. 4, when the cap body 1 continues to move upwards, the cap ring 2 is still fastened on the limiting ring 62 to rotate, so that the extension strip 11 is pulled away from the U-shaped strip 21, and the cap body 1 is ensured to continuously spirally rise along the thread of the bottle mouth 61 until the cap body can smoothly rotate away from the bottle mouth 61.

As the state that the lid 1 that fig. 5 shows left bottleneck 61, when uncapping is accomplished, lid 1 still articulates in spacing ring 62 through extension strip 11, U type strip 21 and cover ring 2, avoids dropping and loses, keeps the state of uncapping of lid 1, and covers lid 1 back bottleneck 61 after facilitating the use is accomplished.

Therefore, the bottle cap can be opened smoothly only by continuously rotating the cap body 1 along the first time direction; and the cover body 1 can be conveniently covered back after use.

In conclusion, the bottle cap, the container and the cap opening method for the container provided by the invention have the advantages that the bottle cap is formed by the connected cap body and the cap ring, so that the bottle cap is always connected with the container in the using process, the bottle cap cannot fall off and be lost, the use by a user is facilitated, and the recovery rate of the bottle cap can be improved; and the manufacturing cost is low, the production efficiency is high, and the method can be suitable for a high-speed production line.

The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.

Claims

1. A bottle cap comprises a cap body and a cap ring which are connected, and is characterized in that,

the cover body is provided with an extension strip, and the first end of the extension strip is integrally connected with the cover body;

the cover ring is provided with an avoiding part for the extension strip to pass through and a U-shaped strip wrapping the extension strip, the opening of the U-shaped strip is integrally connected with the avoiding part, and the bottom of the U-shaped strip is integrally connected with the second end of the extension strip;

breakable connecting teeth are arranged between the cover body and the cover ring, between the side wall of the extension strip and the U-shaped strip, and between the side wall of the U-shaped strip and the avoiding part.

2. The bottle cap according to claim 1, wherein the cap ring is locked to the stopper ring below the bottle mouth and rotated as the cap body spirally rises along the bottle mouth of the container during the cap opening process, the connecting teeth are broken, and the extension strip and the U-shaped strip are pulled apart until the cap body leaves the bottle mouth.

3. The bottle cap of claim 2, wherein the total length of the extension strip and the U-shaped strip pulled apart is greater than the height of the bottle mouth.

4. The bottle cap according to claim 2, wherein the cap body is hung to the stopper ring sequentially through the extension bar, the U-shaped bar, and the cap ring in an uncapped state of the bottle cap.

5. The bottle cap according to claim 1, wherein in an initial closed state of the bottle cap, the cap body is screwed tightly to a bottle mouth of a container, the cap ring is clamped tightly to a stopper ring below the bottle mouth, and the extension bar and the U-shaped bar are locked to the escape portion.

6. The bottle cap of claim 1, wherein the extension strip extends from the open end of the cap body in a direction away from the closed end of the cap body;

the avoiding part is formed into a door-shaped groove with the top disconnected, the extending strip penetrates through the disconnected part of the door-shaped groove, and the opening of the U-shaped strip is integrally connected with the lower end face of the disconnected part.

7. The bottle cap of claim 6, wherein the extension bar and the U-shaped bar are completely received in the escape portion; or

The extension bar and the U-shaped bar are partially accommodated in the escape portion.

8. The bottle cap of claim 1, wherein the cap body, the extension bar, the U-shaped bar, the cap ring, and the coupling teeth are integrally injection molded.

9. A container comprising a threaded neck finish and a stop collar disposed below said neck finish, wherein said container further comprises a cap according to any one of claims 1 to 8;

the cover body is in threaded connection with the bottle opening, and the threads are at least used for screwing the cover body in an initial covering state and providing a spiral lifting stroke of the cover body in the cover opening process;

the cover ring is buckled on the limiting ring, and the limiting ring is used for clamping the cover ring in the initial covering state and always limiting the axial movement of the cover ring.

10. The container of claim 9, further comprising a clamp ring disposed on the finish portion;

when the outer diameter of the bottle clamping ring is larger than that of the cover ring, the extension strip and the U-shaped strip are both in a step shape so as to avoid the bottle clamping ring from extending towards the bottle body of the container.

11. A method of opening a lid of a container, applied to the container as claimed in claim 9 or 10, comprising a first stroke and a second stroke of continuously rotating the lid body in a first direction of the time axis;

in the first stroke, the cover ring rotates along with the spiral rising of the cover body, and the connecting teeth are broken;

in the second stroke, the cover ring spirally rises along with the cover body, the cover ring rotates along with the cover body, the extension strip and the U-shaped strip are pulled apart, and the cover body leaves the bottle opening and is hung on the limiting ring through the cover ring.