Bottle cap capable of being rotationally opened

Abstract

A bottle plug is divided into a sealing part and a pressure-bearing part in the axial direction of the bottle plug, the sealing part is inserted into a bottle opening of a containing bottle in a sliding mode, the pressure-bearing part is connected with a plurality of pressure-bearing protrusions, and the pressure-bearing protrusions are sequentially distributed in the circumferential direction of the pressure-bearing part; the whole sleeve is divided into a rotating part and a crimping part in the axial direction of the sleeve, the rotating part is coaxially and rotationally connected to the bottle opening in a sleeving mode, the crimping part is connected with a plurality of crimping protrusions, and a first interval is formed between every two adjacent pressure-bearing protrusions; the crimping part is further connected with an opening structure located between the two adjacent crimping protrusions, the opening structure comprises a pushing part and an inserting part, the pushing part is located on the rear side of the pressure bearing protrusion pushed by the pushing part in the rotating opening direction, and a second interval is formed between the pushing part and the crimping protrusion located on the front side of the pushing part in the rotating opening direction; according to the bottle cap disclosed by the invention, a hand does not need to press the bottle plug any more, so that the convenience and the safety in the opening process are improved.

Description

Technical Field

[0001] The invention relates to the technical field of bottle cap manufacturing, in particular to a bottle cap that can be rotated to open. Background Art

[0002] Existing champagne packaging only uses traditional corks and metal mesh covers as covers, and its manufacturing and packaging processes are complicated, resulting in high costs. At present, this cover has begun to be used on beer to increase the appearance and grade, giving users a different experience when opening. The process of removing the external metal mesh cover of this package is cumbersome, time-consuming, and inconvenient to open. In the process of removing the metal mesh cover, the thumb pressing on the cork needs to be released. There are safety hazards in this process, and the internal air pressure may directly push open the cork because there is no restriction. This unpredictable burst may cause safety problems. Every year, people around the world are injured by being hit by corks. In addition, the opening steps also include twisting the external wire mesh seal, removing the wire mesh, pushing or turning the cork so that the internal air pressure pushes the cork to cause a burst opening effect, and the opening process is complicated. Summary of the invention

[0003] The purpose of the present invention is to provide a bottle cap that can be turned to open, so as to solve the problems existing in the above-mentioned prior art, so that the hand is no longer involved in pressing the bottle stopper, thereby improving the convenience and safety during the opening process.

[0004] To achieve the above-mentioned purpose, the present invention provides the following solutions: The present invention provides a bottle cap that can be rotatably opened, comprising a sleeve and a bottle stopper;

[0005] The bottle stopper is divided into a sealing part and a pressure-bearing part along its axial direction, the sealing part is slidably inserted in the bottle mouth of the accommodating bottle, the pressure-bearing part is located on the side of the bottle mouth away from the bottle body, and the pressure-bearing part is connected to a plurality of pressure-bearing protrusions protruding from its outer peripheral wall, and each of the pressure-bearing protrusions is sequentially distributed along the circumference of the pressure-bearing part;

[0006] The sleeve as a whole is divided into a rotating part and a crimping part along its axial direction, the rotating part is coaxially rotatably sleeved on the bottle mouth, the crimping part is located on the side of the bottle mouth away from the bottle body, and surrounds the outer peripheral side of the pressure-bearing part, the crimping part is connected with a plurality of crimping protrusions protruding from its inner peripheral wall, each of the crimping protrusions is respectively correspondingly abutted against the side of each of the pressure-bearing protrusions away from the bottle mouth when blocking the bottle mouth, and a first gap is provided between two adjacent pressure-bearing protrusions for the crimping protrusions to pass through;

[0007] The crimping portion is also connected to a plurality of opening structures protruding from its inner circumferential wall, each of the opening structures is correspondingly arranged between two adjacent crimping protrusions and located on a side of the crimping protrusion close to the bottle mouth end face, the opening structure comprises a pushing portion that pushes the pressure-bearing protrusion along the circumferential direction of the pressure-bearing portion, and an inserting portion that pushes the pressure-bearing protrusion along the axial direction of the pressure-bearing portion, the pushing portion is located at the rear side of the pressure-bearing protrusion pushed by it along the rotational opening direction, a second gap for the pressure-bearing protrusion to pass through is provided between the pushing portion and the crimping protrusion located at the front side thereof along the rotational opening direction, the inserting portion is connected to the front side of the pushing portion along the rotational opening direction, and is inserted at a position between the pressure-bearing protrusion and the bottle mouth end face during rotational opening.

[0008] Preferably, the plug-in portion extends along the direction of rotation to open, and is close to the crimping protrusion located at the front side thereof along the direction of rotation to open.

[0009] Preferably, there is a third gap between the pressure-bearing protrusion and the end surface of the bottle mouth for the insertion of the plug-in portion.

[0010] Preferably, a threaded structure is provided between the inner peripheral wall of the rotating part and the outer peripheral wall at the bottle mouth for rotational cooperation between the two.

[0011] Preferably, the rotating part is rotatably sleeved at the bottle mouth at a fixed point, and the side of the plug-in part close to the crimping protrusion is a conical structure, and the conical structure gradually tilts toward the bottle mouth along the rotation opening direction.

[0012] Preferably, when the edge position of the conical surface structure close to the bottle mouth is in the state of blocking the bottle mouth, it is flush with the side of the pressure-bearing protrusion close to the end face of the bottle mouth.

[0013] Preferably, the pushing portion is connected to the front edge of the crimping protrusion along the direction of rotation and opening, and extends along the direction of the rotation axis of the crimping portion.

[0014] Preferably, the crimping protrusions are distributed at equal intervals along the circumference of the crimping portion, and the width of the crimping protrusions along the circumference of the crimping portion matches the width of the second interval.

[0015] Preferably, the pressure-bearing protrusions are distributed at equal intervals along the circumference of the pressure-bearing portion, and the width of the pressure-bearing protrusions along the circumference of the pressure-bearing portion matches the width of the crimping protrusions along the circumference of the crimping portion.

[0016] Preferably, the crimping protrusion is located at an end of the crimping portion away from the rotating portion along the axial direction of the crimping portion, and the pressure-bearing protrusion is located at an end of the pressure-bearing portion away from the sealing portion along the axial direction of the pressure-bearing portion.

[0017] Compared with the prior art, the present invention has achieved the following technical effects:

[0018] Since the rotating part is coaxially rotatably sleeved at the bottle mouth, the sleeve can be rotated as a whole, and the pushing part of the opening structure is used to push the pressure-bearing protrusion along its rotation direction, and the plug-in part of the opening structure is used to be inserted between the pressure-bearing protrusion and the end face of the bottle mouth, and the pressure-bearing protrusion is lifted in a direction away from the bottle mouth, so that the sealing part is loosened at the bottle mouth, and a gap is generated between the sealing part and the inner wall of the bottle mouth for external air to enter the bottle, when the second interval is directly opposite to the pressure-bearing protrusion, the crimping protrusion no longer restricts the pressure-bearing protrusion, and the entire bottle stopper is ejected in a direction away from the bottle mouth under the push of the air pressure in the bottle. The bottle cap disclosed in the present invention can complete the work of opening the bottle stopper by rotating the sleeve, so that the hand is no longer involved in pressing the bottle stopper, thereby improving the convenience and safety of the opening process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 This is a schematic diagram of the overall structure of a bottle cap in one embodiment of the present invention;

[0021] Figure 2 It is a cross-sectional view of the overall structure of a bottle cap in one embodiment of the present invention;

[0022] Figure 3 A top view of the overall structure of a bottle cap in one embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the overall structure of a bottle stopper in one embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram of the connection between the bottle stopper and the bottle mouth in one embodiment of the present invention;

[0025] Figure 6 This is a schematic diagram of the sleeve structure in one embodiment of the present invention;

[0026] Figure 7 An exploded view of the overall structure of a bottle cap in one embodiment of the present invention;

[0027] Among them, 1-sleeve, 2-bottle stopper, 3-bottle mouth, 4-crimping protrusion, 5-second interval, 6-pressure-bearing protrusion, 7-insertion part, 8-sealing part, 9-pressure-bearing part, 10-first interval, 11-third interval, 12-pushing part, 13-crimping part, 14-rotating part. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] The purpose of the present invention is to provide a bottle cap that can be turned to open, so as to solve the problems existing in the above-mentioned prior art, so that the hand is no longer involved in pressing the bottle stopper, thereby improving the convenience and safety during the opening process.

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] like Figures 1 to 7As shown, the present embodiment provides a bottle cap that can be rotatably opened, comprising a sleeve 1 and a bottle stopper 2, wherein the sleeve 1 is preferably made of hard plastic or other hard materials, and the bottle stopper 2 is made of flexible plastic or rubber materials; the bottle stopper 2 is divided into a sealing portion 8 and a pressure-bearing portion 9 along its axial direction, the sealing portion 8 is slidably inserted in the bottle mouth 3 for accommodating the bottle, the pressure-bearing portion 9 is located on the side of the bottle mouth 3 away from the bottle body, the pressure-bearing portion 9 is connected with a plurality of pressure-bearing protrusions 6 protruding from its outer peripheral wall, and each pressure-bearing protrusion 6 is sequentially distributed along the circumference of the pressure-bearing portion 9, so that the bottle stopper 2 can smoothly pass through the sleeve 1 and pop out during subsequent opening, preferably, the main part of the pressure-bearing portion 9 and the sealing portion 8 are coaxially connected cylindrical structures, and the radial cross-sectional structure of the sealing portion 8 matches the cross-sectional structure at the bottle mouth 3 to ensure that the sealing portion 8 is tightly sealed with the bottle mouth 3. Matching; the sleeve 1 is divided into a rotating part 14 and a crimping part 13 along its axial direction as a whole, the rotating part 14 is coaxially rotatably sleeved at the bottle mouth 3, the crimping part 13 is located on the side of the bottle mouth 3 away from the bottle body, and surrounds the outer peripheral side of the pressure-bearing part 9, the crimping part 13 is connected with a plurality of crimping protrusions 4 protruding from its inner peripheral wall, and each crimping protrusion 4 is respectively abutted against the side of each pressure-bearing protrusion 6 away from the bottle mouth 3 when blocking the bottle mouth 3, so that the pressure-bearing protrusion 6 can be applied toward the bottle body by relying on the crimping protrusion 4, and cooperate with the friction between the sealing part 8 and the inner wall of the bottle mouth 3 to prevent the entire bottle stopper 2 from popping out, and there is a first interval 10 for the crimping protrusion 4 to pass through between two adjacent pressure-bearing protrusions 6, and preferably the crimping protrusion 4 and the pressure-bearing protrusion 6 are both fan-shaped structures, and the overall structure gradually decreases from the outer peripheral edge of the bottle mouth 3 to its axial direction;The crimping portion 13 is also connected to a plurality of opening structures protruding from its inner circumferential wall, each opening structure is correspondingly arranged between two adjacent crimping protrusions 4 and located on the side of the crimping protrusion 4 close to the end face of the bottle mouth 3. The opening structure includes a pushing portion 12 that pushes the pressure-bearing protrusion 6 along the circumferential direction of the pressure-bearing portion 9, and an inserting portion 7 that pushes the pressure-bearing protrusion 6 along the axial direction of the pressure-bearing portion 9. The pushing portion 12 is located at the rear side of the pressure-bearing protrusion 6 pushed by it along the rotational opening direction, and a second gap 5 for the pressure-bearing protrusion 6 to pass through is provided between the pushing portion 12 and the crimping protrusion 4 located at the front side thereof along the rotational opening direction. The inserting portion 7 is connected to the front side of the pushing portion 12 along the rotational opening direction, and is inserted into the position between the pressure-bearing protrusion 6 and the end face of the bottle mouth 3 when rotating to open. In the process of rotating to open, since the rotating portion 14 rotates coaxially, The movable sleeve is connected at the bottle mouth 3, so that by rotating the sleeve 1 as a whole, the pushing part 12 of the opening structure is used to push the pressure-bearing protrusion 6 along the rotation direction thereof, and the plug-in part 7 of the opening structure is used to be inserted between the pressure-bearing protrusion 6 and the end face of the bottle mouth 3, and the pressure-bearing protrusion 6 is lifted from the direction away from the bottle mouth 3, so that the sealing part 8 is loosened at the bottle mouth 3, and a gap is generated between the sealing part 8 and the inner wall of the bottle mouth 3 for external air to enter the bottle, when the second interval 5 is directly opposite to the pressure-bearing protrusion 6, the crimping protrusion 4 no longer restricts the pressure-bearing protrusion 6, and the entire bottle stopper 2 is ejected in the direction away from the bottle mouth 3 under the push of the air pressure in the bottle. The bottle cap disclosed in the present invention can complete the work of opening the bottle stopper 2 by rotating the sleeve 1, so that the hand is no longer involved in pressing the bottle stopper 2, thereby improving the convenience and safety of the opening process. It should be noted that during the ejection process, the pressure-bearing protrusion 6 passes through the second interval 5, the crimping protrusion 4 passes through the first interval 10, and the main structure of the sealing portion 8 and the crimping portion 13 passes through the middle channel of the rotating portion 14 and the crimping portion 13 in sequence, completing the ejection of the bottle stopper 2 as a whole. ;

[0032] In a specific embodiment, the plug-in portion 7 extends in the direction of rotation to open and is close to the crimping protrusion 4 located in front of it in the direction of rotation to open. On the one hand, by extending the plug-in portion 7 to the crimping protrusion 4 in front of it, the plug-in portion 7 can fully contact the pressure-bearing protrusion 6, thereby ensuring that the plug-in portion 7 fully lifts the pressure-bearing protrusion 6. On the other hand, the plug-in portion 7 extends to the crimping protrusion 4 in front of it and is close to the crimping protrusion 4, so that the plug-in portion 7 no longer occupies the space on the end face side of the crimping protrusion 4 close to the bottle mouth 3, thereby ensuring that the crimping protrusion 4 is in full contact with the pressure-bearing protrusion 6, thereby ensuring the effectiveness of the abutment against the pressure-bearing protrusion 6 and the entire bottle stopper 2.

[0033] In a specific embodiment, a third gap 11 is provided between the pressure-bearing protrusion 6 and the end surface of the bottle mouth 3 for the insertion of the plug-in portion 7. By providing the third gap 11, the pressure-bearing protrusion 6 and the end surface of the bottle mouth 3 are spaced apart to facilitate the insertion of the plug-in portion 7, thereby facilitating the plug-in portion 7 to lift the entire bottle stopper 2 to cause loosening.

[0034] In a specific embodiment, there is a threaded structure between the inner circumferential wall of the rotating part 14 and the outer circumferential wall at the bottle mouth 3 for the two to rotate and cooperate, and it should be noted that when the sleeve 1 is sealed on the outer circumferential side of the bottle stopper 2, the plug-in part 7 is located on the side of the pressure-bearing protrusion 6 close to the end face of the bottle mouth 3 along the axial direction of the bottle mouth 3. Then, in the process of rotating and opening, by rotating the sleeve 1, the plug-in part 7 extends into the third interval 11, and the pushing part 12 is close to the side of the pressure-bearing protrusion 6 pushed by it. If the threaded part 14 is matched with the threaded part 14 at the bottle mouth 3, the rotating part 14 will move synchronously in the direction away from the bottle body, so as to bring the plug-in part 7 and the pushing part 12 to move synchronously, and the plug-in part 7 will continue to push the pressure-bearing protrusion 6 in the direction away from the bottle mouth 3, and the pushing part 12 will abut against one side of the pressure-bearing protrusion 6, so that the pressure-bearing protrusion 6 as a whole is kept at the position corresponding to the second interval 5. Once the external air contacts the gas in the bottle, the entire bottle stopper 2 will automatically pop out, and the plastic sleeve 1 will continue to be rotated to remove it from the bottle mouth 3 to complete the opening. In general, by setting the threaded structure, the opening work of the entire bottle cap is simpler and more convenient, and only the sleeve 1 needs to be rotated continuously, and the opening speed is effectively improved.

[0035] In this embodiment, the installation method includes: rotating the sleeve 1 to install it at the bottle mouth 3, but not completing the rotation thread, passing the bottle stopper 2 through the sleeve 1 and inserting it at the bottle mouth 3, until the pressure-bearing protrusion 6 is located between the crimping protrusion 4 and the inserting portion 7 along the axial direction of the bottle mouth 3, continuing to rotate the sleeve 1 so that the pressure-bearing protrusion 6 is embedded between the crimping protrusion 4 and the pushing portion 12, and continuing to rotate the sleeve 1 in place. Alternatively, the bottle stopper 2 is first driven into the bottle mouth 3, and the sleeve 1 is placed on the bottle mouth 3 and rotated in place to complete the sealing.

[0036] As another embodiment, the rotating portion 14 is rotatably sleeved on the bottle mouth 3 at a fixed point, and the side of the inserting portion 7 close to the crimping protrusion 4 is in a conical structure, and the conical structure gradually tilts toward the bottle mouth 3 along the rotation opening direction, so that the conical structure can be inserted between the pressure-bearing protrusion 6 and the end surface of the bottle mouth 3 during the rotation of the inserting portion 7, and during the rotation, the conical structure is used to gradually lift the pressure-bearing protrusion 6 and the entire bottle stopper 2 until the pushing portion 12 contacts one side of the pressure-bearing protrusion 6, so that the second gap 5 is opposite to the pressure-bearing protrusion 6, so that the pressure-bearing protrusion 6 is no longer restricted by the crimping protrusion 4, and the entire bottle stopper 2 is automatically popped out. And preferably, when the edge position of the conical structure close to the bottle mouth 3 is in the state of blocking the bottle mouth 3, it is flush with the side of the pressure-bearing protrusion 6 close to the end face of the bottle mouth 3, so that the plug-in portion 7 can be inserted into the third interval 11 more smoothly during the rotation process. Further preferably, the surface of the plug-in portion 7 close to the crimping protrusion 4 is divided into a plane section and a conical section, the plane section is parallel to the end face of the bottle mouth 3 and is located on the side of the pressure-bearing protrusion 6 close to the end face of the bottle mouth 3, the conical section is located between the plane section and the pushing portion 12, and the conical section gradually tilts toward the bottle mouth 3 along the rotation opening direction. During the rotation opening process, the plane section extends into the third interval 11 before the conical section, so as to improve the smoothness of opening the bottle cap.

[0037] In this embodiment, the installation method includes: combining the bottle stopper 2 and the sleeve 1 together, and setting the two together at the bottle mouth 3.

[0038] In a specific embodiment, the pushing portion 12 is connected to the front edge of the crimping protrusion 4 along the direction of rotation to open, and extends along the rotation axis direction of the crimping portion 13, so that the entire opening structure forms a reverse "Z"-shaped structure. During the installation of the bottle cap, the sleeve 1 is rotated so that the pressure-bearing protrusion 6 is fully embedded between the pushing portion 12 and the crimping protrusion 4, and there is no need to optimize the interval between the pushing portion 12 and the crimping protrusion 4 located at the rear side thereof along the direction of rotation to open, that is, there is no need to consider this interval and the structure of the pressure-bearing protrusion 6, which makes the manufacturing process simpler. However, the setting position of the pushing portion 12 is not limited to the above position. As another embodiment, there is a fourth interval between the pushing portion 12 and the crimping protrusion 4 located at the rear side thereof along the rotational opening direction. When the structure of the fourth interval is greater than or equal to the pressure-bearing protrusion 6, when installing the bottle cap, the crimping protrusion 4 must be abutted against the pressure-bearing protrusion 6 and the positions of the two must be kept unchanged. When the structure of the fourth interval is smaller than the pressure-bearing protrusion 6, the sleeve 1 can also be continuously rotated along the rotational installation direction so that the pressure-bearing protrusion 6 is fully embedded between the pushing portion 12 and the crimping protrusion 4 until it is rotated into place.

[0039] In a specific embodiment, the crimping protrusions 4 are evenly spaced along the circumference of the crimping portion 13, and the width of the crimping protrusions 4 along the circumference of the crimping portion 13 matches the width of the second interval 5, and preferably, the pressure-bearing protrusions 6 are evenly spaced along the circumference of the pressure-bearing portion 9, and the width of the pressure-bearing protrusions 6 along the circumference of the pressure-bearing portion 9 matches the width of the crimping protrusions 4 along the circumference of the crimping portion 13, so that the entire bottle cap manufacturing process is simpler and it is convenient to make the mold.

[0040] In a specific embodiment, the crimping protrusion 4 is located axially along the crimping portion 13 at the end position of the crimping portion 13 away from the rotating portion 14, and the pressure-bearing protrusion 6 is located axially along the pressure-bearing portion 9 at the end position of the pressure-bearing portion 9 away from the sealing portion 8, so as to optimize the structure of the entire sleeve 1 and the bottle stopper 2 and make its structure smaller to save material.

[0041] Adaptive changes made according to actual needs are all within the protection scope of the present invention.

[0042] It should be noted that it is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numerals in the claims should not be regarded as limiting the claims involved.

[0043] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A bottle cap that can be turned to open, characterized in that: Includes sleeve and bottle stopper; The bottle stopper is divided into a sealing part and a pressure-bearing part along its axial direction, the sealing part is slidably inserted in the bottle mouth of the accommodating bottle, the pressure-bearing part is located on the side of the bottle mouth away from the bottle body, and the pressure-bearing part is connected to a plurality of pressure-bearing protrusions protruding from its outer peripheral wall, and each of the pressure-bearing protrusions is sequentially distributed along the circumference of the pressure-bearing part; The sleeve as a whole is divided into a rotating part and a crimping part along its axial direction, the rotating part is coaxially rotatably sleeved on the bottle mouth, the crimping part is located on the side of the bottle mouth away from the bottle body, and surrounds the outer peripheral side of the pressure-bearing part, the crimping part is connected with a plurality of crimping protrusions protruding from its inner peripheral wall, each of the crimping protrusions is respectively correspondingly abutted against the side of each of the pressure-bearing protrusions away from the bottle mouth when blocking the bottle mouth, and a first gap is provided between two adjacent pressure-bearing protrusions for the crimping protrusions to pass through; The crimping portion is also connected to a plurality of opening structures protruding from its inner circumferential wall, each of the opening structures is correspondingly arranged between two adjacent crimping protrusions and located on a side of the crimping protrusion close to the bottle mouth end face, the opening structure comprises a pushing portion that pushes the pressure-bearing protrusion along the circumferential direction of the pressure-bearing portion, and an inserting portion that pushes the pressure-bearing protrusion along the axial direction of the pressure-bearing portion, the pushing portion is located at the rear side of the pressure-bearing protrusion pushed by it along the rotational opening direction, a second gap for the pressure-bearing protrusion to pass through is provided between the pushing portion and the crimping protrusion located at the front side thereof along the rotational opening direction, the inserting portion is connected to the front side of the pushing portion along the rotational opening direction, and is inserted at a position between the pressure-bearing protrusion and the bottle mouth end face during rotational opening.

2. The rotatable bottle cap according to claim 1, characterized in that: The plug-in portion extends along the direction of rotation and opens, and is close to the crimping protrusion located at the front side of the plug-in portion along the direction of rotation and opens.

3. The rotatable bottle cap according to claim 2, characterized in that: A third gap is provided between the pressure-bearing protrusion and the end surface of the bottle mouth for the insertion of the plug-in portion.

4. The rotatable bottle cap according to claim 3, characterized in that: A thread structure is provided between the inner peripheral wall of the rotating part and the outer peripheral wall at the bottle mouth for rotational cooperation between the two.

5. The rotatable bottle cap according to claim 3, characterized in that: The rotating part is fixedly rotated and sleeved on the bottle mouth, and the side of the plug-in part close to the crimping protrusion is a conical structure, and the conical structure gradually tilts towards the bottle mouth along the rotation opening direction.

6. The rotatable bottle cap according to claim 5, characterized in that: When the edge of the conical surface structure close to the bottle mouth is in the state of blocking the bottle mouth, it is flush with the side of the pressure-bearing protrusion close to the end face of the bottle mouth.

7. The rotatable bottle cap according to claim 4 or 5, characterized in that: The pushing portion is connected to the front edge of the crimping protrusion along the direction of rotation and opening, and extends along the rotation axis direction of the crimping portion.

8. The rotatable bottle cap according to claim 7, characterized in that: The crimping protrusions are distributed at equal intervals along the circumference of the crimping portion, and the width of the crimping protrusions along the circumference of the crimping portion matches the width of the second interval.

9. The rotatable bottle cap according to claim 8, characterized in that: The pressure-bearing protrusions are distributed at equal intervals along the circumference of the pressure-bearing portion, and the width of the pressure-bearing protrusions along the circumference of the pressure-bearing portion matches the width of the crimping protrusions along the circumference of the crimping portion.

10. The rotatable bottle cap according to claim 9, characterized in that: The crimping protrusion is located at an end of the crimping portion away from the rotating portion along the axial direction of the crimping portion, and the pressure-bearing protrusion is located at an end of the pressure-bearing portion away from the sealing portion along the axial direction of the pressure-bearing portion.

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