Bottle cap, container and method for opening container

Abstract

The present 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 comprises a connected cover body and a cover ring, the cover body is provided with an extension strip, the first end of the extension strip is integrally connected to the cover body; the cover ring is provided with a relief portion for the extension strip to pass through and a U-shaped strip surrounding the extension strip, the opening of the U-shaped strip is integrally connected to the relief portion, and the bottom of the U-shaped strip is integrally connected to the second end of the extension strip; breakable connecting teeth are provided 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 relief portion. The bottle cap of the present invention is composed of a connected cover body and a cover ring, so that the bottle cap is always connected to the container during use and will not fall off or be lost, thereby facilitating the use of the user and improving the recycling rate of the bottle cap; and the manufacturing cost of the bottle cap is low, and it can be applied to high-speed production lines.

Description

Technical Field

[0001] The present invention relates to the technical field of containers, in particular to a bottle cap, a container and a method for opening the container. Background Art

[0002] A container, such as a beverage bottle, is composed of a bottle body and a bottle cap, and can be used to hold fluid products. The general structure of the container is: the bottle mouth of the bottle body is provided with a thread, a bottle ring is provided below the thread, and the bottle cap includes a detachable cover body and a cover ring.

[0003] In the initial state, the cover body is screwed to the bottle mouth, the cover ring is fixed on the bottle ring, and the cover body and the cover ring are connected by a thin plastic strip.

[0004] When opening the bottle cap, rotate the cap body to break the thin plastic strip, so that the cap body leaves the bottle mouth, the cap ring remains on the bottle ring, and the cap body and the cap ring are separated. After use, put the cap body back on the bottle mouth. When using it next time, repeat the above action, turn the cap body away from the bottle mouth and separate it from the cap ring, and put the cap body back again after use.

[0005] In the above-mentioned container, since the cover body and the cover ring are separately arranged, the cover body is often lost after use, and during recycling, there is no way to recycle the cover body separately due to problems such as loss of the cover body and labor costs, resulting in waste of resources and environmental pollution.

[0006] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present invention, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0007] In view of this, the present invention provides a bottle cap, a container and a method for opening the container, wherein the bottle cap consists of a connected cap body and a cap ring, so that the bottle cap is always connected to the container during use and will not fall off or be lost, thereby facilitating use by users and improving the recycling rate of the bottle cap; and the bottle cap has a low manufacturing cost and can be applied to high-speed production lines.

[0008] One aspect of the present invention provides a bottle cap, comprising a connected cap body and a cap ring, the cap body being provided with an extension strip, a first end of the extension strip being integrally connected to the cap body; the cap ring being provided with an escape portion for the extension strip to pass through and a U-shaped strip surrounding the extension strip, an opening of the U-shaped strip being integrally connected to the escape portion, and a bottom of the U-shaped strip being integrally connected to the second end of the extension strip; breakable connecting teeth are provided between the cap body and the cap 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.

[0009] In some embodiments, during the opening process of the bottle cap, as the cap body spirals up along the bottle mouth of the container, the cap ring is buckled in the limit ring below the bottle mouth and rotates, the connecting teeth break, and the extension strip and the U-shaped strip are pulled apart until the cap body leaves the bottle mouth.

[0010] In some embodiments, the total length of the extension strip and the U-shaped strip when stretched apart is greater than the height of the bottle mouth.

[0011] In some embodiments, when the bottle cap is in the opening state, the cap body is hung on the limiting ring through the extension strip, the U-shaped strip and the cap ring in sequence.

[0012] In some embodiments, when the bottle cap is in an initial closed state, the cap body is screwed onto the bottle mouth of the container, the cap ring is clamped onto a limiting ring below the bottle mouth, and the extension strip and the U-shaped strip are locked onto the avoidance portion.

[0013] In some embodiments, the extension strip extends from the open end of the cover body in a direction away from the closed end of the cover body; the avoidance portion is formed as a door-shaped groove with a broken top, the extension strip passes through the broken part of the door-shaped groove, and the opening of the U-shaped strip is integrally connected to the lower end surface of the broken part.

[0014] In some embodiments, the extension strip and the U-shaped strip are completely accommodated in the avoidance portion; or, the extension strip and the U-shaped strip are partially accommodated in the avoidance portion.

[0015] In some embodiments, the cover body, the extension strip, the U-shaped strip, the cover ring and the connecting teeth are integrally injection molded.

[0016] Another aspect of the present invention provides a container, comprising a bottle mouth provided with a thread and a limiting ring arranged below the bottle mouth, and the container also includes a bottle cap of any of the above-mentioned embodiments; the cap body is screwed to the bottle mouth, and the thread is at least used to tighten the cap body in an initial closed state and provide a spiral upward stroke of the cap body during the opening process; the cap ring is buckled in the limiting ring, and the limiting ring is used to clamp the cap ring in the initial closed state and always limit the axial movement of the cap ring.

[0017] In some embodiments, the container further comprises a bottle clamping ring disposed at the bottleneck portion; when the outer diameter of the bottle clamping ring is greater than the outer diameter of the cover ring, the extension strip and the U-shaped strip are both stepped to avoid the bottle clamping ring extending toward the bottle body of the container.

[0018] Another aspect of the present invention provides a method for opening a container, which is applied to the above-mentioned container, and the method comprises a first stroke and a second stroke of continuously rotating the cover body in a first clockwise direction; in the first stroke, as the cover body spirals up, the cover ring follows the rotation and the connecting teeth break; in the second stroke, as the cover body spirals up, the cover ring follows the rotation and the extension strip and the U-shaped strip are pulled apart, until the cover body leaves the bottle mouth and is hung on the limit ring through the cover ring.

[0019] The beneficial effects of the present invention compared with the prior art include at least:

[0020] The bottle cap of the present invention is composed of a connected cap body and a cap ring, and the cap body and the cap ring are always connected together;

[0021] In the initial capping state, the cap ring is clamped on the limiting ring below the bottle mouth of the container, the cap body is screwed on the bottle mouth, and the cap body and the cap ring are locked by longitudinal thin short connecting teeth to ensure the stability of the bottle cap and prevent the bottle cap from loosening during transportation, storage, etc.

[0022] In the initial closed state, although the initial continuity of the cover ring is destroyed by the avoidance portion, the extension strip connected to the cover body passes through the avoidance portion of the cover ring and is wrapped in the U-shaped strip connected to the avoidance portion of the cover ring. The extension strip, the U-shaped strip and the avoidance portion are locked by transverse thin and short connecting teeth, thereby ensuring the stability of the cover ring and making the cover ring still form a continuous annular structure. In addition, it can ensure that the extension strip and the U-shaped strip are closely attached to the bottle mouth to avoid warping and deformation.

[0023] During the opening process, as the cap body spirally rises, the cap ring is always buckled on the limiting ring and rotates accordingly, so that the connecting teeth break, the extension strip and the U-shaped strip are pulled apart, and the cap body smoothly leaves the bottle mouth;

[0024] When the cover is opened, the cover body is still hung on the limit ring through the cover ring to prevent the cover body from falling and being lost, and to facilitate the cover body to be put back on the bottle mouth after use;

[0025] The bottle cap of the present invention can always be connected to the container once it is assembled to the container, which is not only convenient to use but also can improve the recycling rate of the bottle cap, realize resource recycling and protect the environment; and the overall manufacturing cost of the bottle cap is low and the production efficiency is high, and it is suitable for high-speed production lines.

[0026] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings herein are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present invention, and together with the specification are used to explain the principles of the present invention. Obviously, the accompanying drawings described below are only some embodiments of the present invention, and for those of ordinary skill in the art, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0028] Figure 1 A schematic diagram of the front view of the bottle cap in one embodiment of the present invention is shown;

[0029] Figure 2 A schematic cross-sectional view of a bottle cap according to an embodiment of the present invention is shown;

[0030] Figure 3 A schematic diagram showing the structure of a bottle cap after the connecting teeth are broken in one embodiment of the present invention;

[0031] Figure 4 A schematic diagram showing the structure of a bottle cap spirally ascending in one embodiment of the present invention;

[0032] Figure 5 A schematic diagram showing the structure of a bottle cap body leaving the bottle mouth in one embodiment of the present invention;

[0033] Figure 6 A front view structural schematic diagram of a bottle cap in another embodiment of the present invention is shown;

[0034] Figure 7 A schematic cross-sectional view of a bottle cap in another embodiment of the present invention is shown;

[0035] Figure 8 A schematic diagram showing the steps of a method for opening a container in one embodiment of the present invention. DETAILED DESCRIPTION

[0036] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein. Instead, these embodiments are provided to make the present invention comprehensive and complete and to fully convey the concepts of the example embodiments to those skilled in the art.

[0037] The accompanying drawings are only schematic illustrations of the present invention and are not necessarily drawn to scale. The same reference numerals in the drawings represent the same or similar parts, and thus their repeated description will be omitted.

[0038] In addition, the processes shown in the accompanying drawings are only exemplary and do not necessarily include all the steps. For example, some steps can be decomposed, and some steps can be combined or partially combined. The words "first", "second" and similar words used in the specific description do not indicate any order, quantity or importance, but are only used to distinguish different components. It should be noted that the embodiments of the present invention and the features in different embodiments can be combined with each other without conflict.

[0039] In addition, in order to clearly show the structure of the bottle cap and the matching relationship between the bottle cap and the container, the bottle cap and the bottle mouth of the container are shown in the structural diagram of the bottle cap, which is not intended to limit the protection scope of the present invention. The present invention provides both a separate bottle cap and a container including the bottle cap, as well as a method for opening the container.

[0040] Figure 1 The front view structure of the bottle cap in one embodiment is shown, referring to Figure 1 As shown, the bottle cap provided in this embodiment includes a connected cover body 1 and a cover ring 2, the cover body 1 is provided with an extension strip 11, and the first end 11a of the extension strip 11 is integrally connected to the cover body 1; the cover ring 2 is provided with an avoidance portion 20 for the extension strip 11 to pass through and a U-shaped strip 21 surrounding the extension strip 11, the opening 21a of the U-shaped strip 21 is integrally connected to the avoidance portion 20, and the bottom 21b of the U-shaped strip 21 is integrally connected to the second end 11b of the extension strip 11; breakable connecting teeth 3 are provided 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 avoidance portion 20.

[0041] The bottle cap is composed of a connected cap body 1 and a cap ring 2, and the cap body 1 and the cap ring 2 are always connected together.

[0042] Figure 2 The cross-sectional structure of the bottle cap in one embodiment is shown, combined with Figure 1 and Figure 2 As shown, in the initial closed state, the cover body 1 is screwed to the bottle mouth 61 of the container 6, the cover ring 2 is clamped to the limiting ring 62 below the bottle mouth 61, and the extension strip 11 and the U-shaped strip 21 are locked to the avoidance portion 20.

[0043] The cover ring 2 is clamped on the limiting ring 62, the cover body 1 is screwed on the bottle mouth 61, and the cover body 1 and the cover ring 2 are locked by the longitudinal thin and short connecting teeth 3 to ensure the stability of the bottle cap and prevent the bottle cap from loosening during transportation, storage, etc.

[0044] Furthermore, although the initial continuity of the cover ring 2 is destroyed due to the avoidance portion 20, the extension strip 11 integrally connected to the cover body 1 passes through the avoidance portion 20 of the cover ring 2 and is wrapped in the U-shaped strip 21 integrally connected to the avoidance portion 20 of the cover ring 2, and the extension strip 11, the U-shaped strip 21 and the avoidance portion 20 are also locked by transverse thin and short connecting teeth 3 to ensure the stability of the cover ring 2 so that the cover ring 2 still forms a continuous annular structure; in addition, the connecting teeth 3 formed between the extension strip 11, the U-shaped strip 21 and the avoidance portion 20 can also make the extension strip 11 and the U-shaped strip 21 close to the bottle mouth 61 to avoid warping and deformation.

[0045] Figure 3 The structure of the bottle cap after the connecting teeth are broken in one embodiment is shown. Figure 4 The structure of the bottle cap body spirally rising in this embodiment is shown. Figure 5 The structure of the bottle cap body leaving the bottle mouth in this embodiment is shown. Figures 1 to 5 As shown, during the opening process, as the cover body 1 spirally rises along the bottle mouth 61 of the container 6, the cover ring 2 is buckled in the limit ring 62 below the bottle mouth 61 and rotates, the connecting teeth 3 break, and the extension strip 11 and the U-shaped strip 21 are pulled apart until the cover body 1 leaves the bottle mouth 61.

[0046] Specifically, during the process of opening the cover, the cover body 1 is continuously rotated in the opening direction, for example, in the counterclockwise direction R. Due to the action of the connecting teeth 3, the extension strips 11 and the U-shaped strips 21, the cover ring 2 is driven by the cover body 1, and the cover ring 2 is restricted from axial movement by the limit ring 62; therefore, as the cover body 1 spirally rises, the cover ring 2 is always locked on the limit ring 62 and rotates accordingly.

[0047] When the cover body 1 moves up a certain distance, the connecting teeth 3 break due to the force between the cover body 1 and the cover ring 2, showing as follows Figure 3 As the connecting tooth 3 is broken, Figure 3 As shown, 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.

[0048] When the cover 1 continues to move upward, refer to Figure 4 As shown, the extension strip 11 and the U-shaped strip 21 are pulled apart along the height direction Y to ensure that the cover body 1 continues to spirally rise along the thread of the bottle mouth 61. The design of the extension strip 11 and the U-shaped strip 21 needs to ensure that the total length of the two pulled apart is greater than the height of the bottle mouth 61, so that the cover body 1 can finally smoothly rotate away from the bottle mouth 61.

[0049] Combination Figure 1 and Figure 4As shown, in the present invention, the ends of the extension strip 11 and the U-shaped strip 21 that are in contact (i.e., the second end 11b of the extension strip 11 and the bottom 21b of the U-shaped strip 21) are integrally connected, and the non-contact ends (i.e., the first end 11a of the extension strip 11 and the opening 21a of the U-shaped strip 21) are integrally connected to the cover body 1 and the cover ring 2, respectively, and the U-shaped strip 21 surrounds the extension strip 11; thereby, on the one hand, the own lengths of the extension strip 11 and the U-shaped strip 21 can be fully utilized, so that the total length of the extension strip 11 and the U-shaped strip 21 after being pulled apart is close to (slightly less than) the sum of their own lengths; on the other hand, the extension strip 11 and the U-shaped strip 21 will not occupy too much space in the closed state, so that the overall stability of the bottle cap is strong and the overall volume of the bottle cap is almost not increased.

[0050] Continue to rotate the cover 1, and the cover 1 can be removed from the bottle mouth 61, presenting Figure 5 The status shown. Figure 5 In the shown opening completed state, the cover body 1 is hung on the limiting ring 62 through the extension strip 11, the U-shaped strip 21 and the cover ring 2 in sequence, which can prevent the cover body 1 from falling and being lost, and facilitate the cover body 1 to be put back on the bottle mouth 61 after use.

[0051] When the lid is opened, due to the existence of the extension strip 11 and the U-shaped strip 21 and their connection relationship, the lid body 1 will be away from the bottle mouth 61 for a distance (the distance between the lid body 1 and the bottle mouth 61 is slightly smaller than the total length of the extension strip 11 and the U-shaped strip 21 pulled apart), ensuring that the user can conveniently drink the beverage contained in the container 6 from the bottle mouth 61 at this time, and the use of the bottle mouth 61 will not be affected by the lid body 1 being too close to the bottle mouth 61. The extension strip 11 and the U-shaped strip 21 have a certain strength and will not cause the lid body 1 to shake randomly, so that the lid body 1 can be kept at a suitable distance near the bottle mouth 61 when the lid is opened.

[0052] After use, the cover body 1 can be put back on the bottle mouth 61. When the cover body 1 is screwed, the extension strip 11 will be stored in the U-shaped strip 21, and the extension strip 11 and the U-shaped strip 21 return to the avoidance portion 20 of the cover ring 2, presenting Figure 3 Status shown.

[0053] The bottle caps mentioned above can always be connected to the container 6 once they are assembled to the container 6, which is not only convenient to use, but also can improve the recycling rate of the bottle caps, realize the recycling of resources and protect the environment.

[0054] Moreover, the various 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 formed by injection molding to form the bottle cap, which can reduce the injection cost of the bottle cap, facilitate demoulding, avoid jamming, improve production efficiency, and facilitate the capping of the bottle cap to the bottle mouth of the container, and is suitable for high-speed production lines. In addition, the injection material can be plastic, so that the formed extension strip 11 and U-shaped strip 21 have a certain flexibility, which is convenient for pulling them apart; at the same time, the extension strip 11 and U-shaped strip 21 have a certain strength, so that they can support the cap body 1 in the open state.

[0055] In one embodiment, in combination Figure 1 and Figure 5 As shown, the extension strip 11 extends from the open end 1a of the cover body 1 in a direction away from the closed end 1b of the cover body 1; the avoidance portion 20 is formed as a gate-shaped groove with a broken top (i.e., formed as Structure), the extension bar 11 passes through the disconnection of the gate-shaped groove, and the opening 21a of the U-shaped bar 21 is integrally connected to the lower end surface of the disconnection.

[0056] like Figure 1 As shown, the extension strip 11 and the U-shaped strip 21 are partially accommodated in the avoidance portion 20; Figure 6 FIG. 4 shows a front view structure of a bottle cap in another embodiment, as shown in FIG. Figure 6 As shown, the extension strip 11 and the U-shaped strip 21 are completely contained in the avoidance portion 20, which depends on the total length required after the extension strip 11 and the U-shaped strip 21 are pulled apart. For example, when applied to containers with different bottle mouth heights, the length of the extension strip 11 itself can be from 1 cm to 50 cm, or even longer.

[0057] In the bottle cap described above, the cap ring 2 is not a 360° continuous ring, but is provided with an opening; a U-shaped strip 21 is formed at the opening to extend downward beyond the lower edge of the cap ring 2, and the bottom of the U-shaped strip 21 is connected to the extension strip 11 of the cap body 1, so that the bottle cap can be pulled upward by multiples (extension strip 11+U-shaped strip 21). In addition, the function of the cap ring 2 is achieved by maintaining a 360° continuous structure through the breakable connecting teeth 3, and the bottle cap and the bottle body are connected as one after opening the cap.

[0058] The connecting teeth 3 allow the cap ring 2 to maintain a circular ring structure, so that the cap ring 2 can be resistant to extrusion and impact. During transportation, the cap rings 2 can be stacked together without deformation. After being transported to the destination, the cap rings 2 can be easily separated and transferred to the operation site where they are capped with the bottle body through a conveyor belt. The overall structure of the bottle cap is simple, the design is compact, and it is durable. It can be injection molded at high speed, is easy to transport, rolls freely, and will not be twisted or deformed. It meets the production requirements of the filling line and satisfies the production efficiency of the filling line.

[0059] The embodiment of the present invention further provides a container, including the bottle cap described in any of the above embodiments. The features and principles of the bottle cap described in any of the above embodiments can be applied to the following container embodiments. In the following container embodiments, the features and principles of the bottle cap and the assembly relationship between the bottle cap and the container that have been explained will not be repeated.

[0060] Combination Figures 1 to 6 As shown in any of the figures in the figure, the container 6 includes a bottle mouth 61 with a thread and a limiting ring 62 arranged below the bottle mouth 61, the cover body 1 is screwed to the bottle mouth 61, the thread of the bottle mouth 61 is at least used to screw the cover body 1 in the initial covering state and provide a spiral upward stroke of the cover body 1 during the uncovering process (as well as a spiral downward stroke of the cover body 1 during the covering process); the cover ring 2 is buckled in the limiting ring 62, and the limiting ring 62 is used to clamp the cover ring 2 in the initial covering state and always limit the axial movement of the cover ring 2.

[0061] In the initial capping state, the cap body 1 is screwed to the bottle mouth 61, the cap ring 2 is clamped to the limiting ring 62, and the cap body 1 and the cap ring 2 are locked by the longitudinal thin short connecting teeth 3 to ensure the stability of the bottle cap and prevent the bottle cap from loosening during the transportation of the container 6; in addition, in the initial capping state, the extension strip 11 integrally connected to the cap body 1 passes through the avoidance portion 20 of the cap ring 2 and is wrapped in the U-shaped strip 21 integrally connected to the avoidance portion 20 of the cap ring 2, and the extension strip 11, the U-shaped strip 21 and the avoidance portion 20 are also locked by the transverse thin short connecting teeth 3 to ensure that the bottle cap is stable. The cover ring 2 can ensure the stability of the cover ring 2, and can ensure that the extension strip 11 and the U-shaped strip 21 are tightly attached to the bottle mouth 61 to avoid warping and deformation; in the process of opening the cover, as the cover body 1 spirals up along the bottle mouth 61, the cover ring 2 is always buckled on the limiting ring 62 and rotates accordingly, so that the connecting teeth 3 break, the extension strip 11 and the U-shaped strip 21 are pulled apart, and the cover body 1 smoothly leaves the bottle mouth 61; when the cover is opened, the cover body 1 is still hung on the limiting ring 62 by the extension strip 11, the U-shaped strip 21 and the cover ring 2 to avoid falling and losing, and to facilitate the cover body 1 to be covered on the bottle mouth 61 after use.

[0062] The container 6 can ensure that the bottle cap is always connected to the container 6, which is not only convenient to use, but also can improve the recycling rate of the bottle cap, realize resource recycling, and protect the environment. In addition, the various 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, which is suitable for high-speed production lines; and the bottle cap can be easily covered on the bottle mouth of the container 6, thereby improving the overall production efficiency of the container 6.

[0063] In addition, a bottle clamping ring 63 may be provided at the bottleneck of the container 6, which can help the container 6 to be filled on the production line (a mechanical gripper is provided on the production line, which can grip the container 6 through the bottle clamping ring 63) and improve the stability and efficiency during transportation and capping.

[0064] exist Figures 1 to 6 In the embodiment of the present invention, the outer diameter of the bottle clamping ring 63 is smaller than the outer diameter of the cover ring 2. In some cases, the outer diameter of the bottle clamping ring may also be greater than or equal to the outer diameter of the cover ring to make it easier for the mechanical gripper to grasp the container through the bottle clamping ring. Figure 7 The cross-sectional structure of the bottle cap in another embodiment is shown, referring to Figure 7 As shown, in this embodiment, the outer diameter of the bottle clamping ring 63 is greater than the outer diameter of the cover ring 2. At this time, the extension strip 11 and the U-shaped strip 21 are both stepped to avoid the bottle clamping ring 63 extending toward the bottle body.

[0065] The embodiment of the present invention further provides a method for opening a container, which is applied to the container described in the above embodiment. The features and principles of the bottle cap described in any of the above embodiments, and the features and principles of the container described in the above embodiments can be applied to the following embodiments of the method for opening a container. In the following embodiments of the method for opening a container, the features and principles of the bottle cap and container that have been explained will not be repeated.

[0066] Figure 8 The main steps of the container opening method in one embodiment are shown, referring to Figure 8 As shown, the container opening method includes a first stroke S810 and a second stroke S820 of continuously rotating the cover body along a first clockwise direction; in the first stroke S810, the cover body is rotated along the first clockwise direction, so that the cover ring rotates along with the cover body spirally rising and the connecting teeth are broken; in the second stroke S820, the cover body continues to be rotated along the first clockwise direction, so that the cover body spirally rises, the cover ring rotates along with the extension bar and the U-shaped bar are pulled apart, until the cover body leaves the bottle mouth and is hung on the limit ring through the cover ring.

[0067] Combination Figures 1 to 5 The matching relationship between the bottle cap and the container during the opening process is shown.

[0068] like Figure 1 and Figure 2 In the initial closed state shown, the cover body 1 is screwed to the bottle mouth 61 of the container 6, the cover ring 2 is clamped to the limiting ring 62 below the bottle mouth 61, and the cover body 1 and the cover ring 2 are locked by the longitudinal thin and short connecting teeth 3 to ensure the stability of the bottle cap; in addition, the extension strip 11 integrally connected to the cover body 1 passes through the avoidance portion 20 of the cover ring 2, and is wrapped in the U-shaped strip 21 integrally connected to the avoidance portion 20 of the cover ring 2, and the extension strip 11, the U-shaped strip 21 and the avoidance portion 20 are also locked by the transverse thin and short connecting teeth 33, which further improves the stability of the cover ring 2 and ensures that the extension strip 11 and the U-shaped strip 21 are tightly attached to the bottle mouth 61 to avoid warping and deformation.

[0069] like Figure 3In the state after the connecting tooth 3 is broken, the cover body 1 is rotated along the first clockwise direction (counterclockwise direction R), and the cover ring 2 is buckled on the limiting ring 62 and follows the rotation. When the cover body 1 moves up a certain distance, due to the force between the cover body 1 and the cover ring 2, the connecting tooth 3 breaks, and the extension strip 11 and the U-shaped strip 21 are slightly warped.

[0070] like Figure 4 The cover body 1 is shown in a spiral rising state. When the cover body 1 continues to move upward, the cover ring 2 is still buckled on the limiting ring 62 and rotates accordingly, so that the extension strip 11 and the U-shaped strip 21 are pulled apart, ensuring that the cover body 1 continues to spirally rise along the thread of the bottle mouth 61 until it can smoothly rotate away from the bottle mouth 61.

[0071] like Figure 5 The cover body 1 is shown in a state of leaving the bottle mouth 61. When the cover is opened, the cover body 1 is still hung on the limiting ring 62 through the extension strip 11, the U-shaped strip 21 and the cover ring 2 to avoid falling and being lost, keep the cover body 1 in the open state, and conveniently put the cover body 1 back on the bottle mouth 61 after use.

[0072] Therefore, the bottle cap can be opened smoothly by continuously rotating the cover body 1 along the first clockwise direction; and the cover body 1 can be conveniently put back after use.

[0073] In summary, the bottle cap, container and container opening method provided by the present invention form a bottle cap through a connected cover body and a cover ring, so that the bottle cap is always connected to the container during use and will not fall off or be lost, which is convenient for users to use and can improve the recycling rate of the bottle cap; and the manufacturing cost is low and the production efficiency is high, and it can be applied to high-speed production lines.

[0074] The above contents are further detailed descriptions of the present invention in combination with specific preferred embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A bottle cap, comprising a cap body and a cap ring connected to each other, characterized in that: The cover body is provided with an extension strip, and a first end of the extension strip is integrally connected to the cover body; The cover ring is provided with an escape portion for the extension strip to pass through and a U-shaped strip surrounding the extension strip, the opening of the U-shaped strip is integrally connected to the escape portion, and the bottom of the U-shaped strip is integrally connected to the second end of the extension strip; The extension strip extends from the open end of the cover body in a direction away from the closed end of the cover body; the avoidance portion is formed as a door-shaped groove with a broken top, the extension strip vertically passes through the broken part of the door-shaped groove, and the opening of the U-shaped strip is integrally connected to the lower end surface of the broken part; Breakable connecting teeth are provided 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 avoidance portion; During the opening process of the bottle cap, as the cap body spirally rises along the bottle mouth of the container, the cap ring buckled with the limiting ring below the bottle mouth rotates, the connecting teeth break, and the extension strip and the U-shaped strip are pulled apart until the cap body leaves the bottle mouth.

2. The bottle cap according to claim 1, characterized in that: The total length of the extension strip and the U-shaped strip when pulled apart is greater than the height of the bottle mouth.

3. The bottle cap according to claim 1, characterized in that: When the bottle cap is in the opening state, the cap body is hung on the limiting ring through the extension strip, the U-shaped strip and the cap ring in sequence.

4. The bottle cap according to claim 1, characterized in that: In the initial closing state of the bottle cap, the cap body is screwed to the bottle mouth of the container, the cap ring is clamped to the limiting ring below the bottle mouth, and the extension strip and the U-shaped strip are locked to the avoidance portion.

5. The bottle cap according to claim 1, characterized in that: The extension strip and the U-shaped strip are completely accommodated in the avoidance portion; or The extension strip and the U-shaped strip are partially accommodated in the avoidance portion.

6. The bottle cap according to claim 1, characterized in that: The cover body, the extension strip, the U-shaped strip, the cover ring and the connecting teeth are integrally injection molded.

7. A container, comprising a bottle mouth with a thread and a limiting ring arranged below the bottle mouth, characterized in that: The container further comprises a bottle cap as claimed in any one of claims 1 to 6; The cover body is screwed to the bottle mouth, and the thread is used at least to tighten the cover body in the initial closed state and provide a spiral upward stroke of the cover body during the uncapping process; The cover ring is buckled on the limiting ring, and the limiting ring is used to clamp the cover ring in the initial covering state and always limit the axial movement of the cover ring.

8. The container according to claim 7, characterized in that It also includes a bottle clamping ring arranged on the neck of the bottle; When the outer diameter of the bottle clamping ring is greater than the outer diameter of the cover ring, the extension strip and the U-shaped strip are both stepped to avoid the bottle clamping ring and extend toward the bottle body of the container.

9. A method for opening a container, characterized in that: Applied to the container as claimed in claim 7 or 8, the cover opening method comprises a first stroke and a second stroke of continuously rotating the cover body in a first clockwise direction; In the first stroke, as the cover body spirally rises, the cover ring rotates accordingly and the connecting teeth break; In the second stroke, as the cover body spirally rises, the cover ring rotates accordingly and the extension strip and the U-shaped strip are pulled apart until the cover body leaves the bottle mouth and is hung on the limiting ring through the cover ring.

Images