CN219506641U

CN219506641U - Bottle cap with storage cavity and container

Info

Publication number: CN219506641U
Application number: CN202321845032.2U
Authority: CN
Inventors: 梁永明
Original assignee: Suzhou Rapid Precision Mold Co ltd
Current assignee: Guangxi Bama Sweet Home Bee Industry Co.,Ltd.
Priority date: 2023-07-14
Filing date: 2023-07-14
Publication date: 2023-08-11
Anticipated expiration: 2033-07-14

Abstract

The utility model discloses a bottle cap with a storage cavity and a container, wherein the bottle cap comprises: a main body; a screw rod which is inserted into the main body in a manner capable of moving up and down and rotating; a screw cap which closes an upper end portion of the main body and is rotatable relative to the main body; an outer cover; the bottle cap is provided with a sealing state and an opening state, in the sealing state, the blank cap part is positioned in the lower end part of the main body to seal the main body, the rotating part and the fixing part are connected through the first anti-theft ring, and a sealed storage cavity is formed in the main body; when the anti-theft ring is in the open state, the first anti-theft ring is broken, the rotating part and the fixing part are separated from each other, and a gap communicated with the storage cavity is formed between the cover part and the lower end part of the main body. The bottle cap has the advantages of antitheft design, convenient opening, good sealing performance and convenient filling.

Description

Bottle cap with storage cavity and container

Technical Field

The utility model belongs to the technical field of beverage packaging, and relates to a bottle cap with a storage cavity and a container using the bottle cap.

Background

With the increasing level of living of people, people are increasingly pursuing healthy products. The prior bottle caps can be matched and used at any time, for example, chinese patent CN216612412U discloses a brewing structure of a beverage quick-brewing packaging bottle, which comprises a bottle body, wherein the upper end of the bottle body is provided with a bottle mouth, the bottle mouth is sleeved with a bottle cap, a storage sleeve extending into the bottle body through the bottle mouth is formed on the bottle cap, a piston extending into the storage sleeve is further arranged in the bottle cap, a closed capacity bin is limited between the piston and the storage sleeve, the piston can move downwards relative to the storage sleeve and open the capacity bin downwards, and a pressing hole communicated with the inside of the storage sleeve is formed at the top end of the bottle cap. When a user infuses, the piston in the storage sleeve can be pressed downwards through the pressing hole, and after the piston seals the part of the lower end of the storage sleeve and downwards extends out of the capacity bin, the capacity bin is opened, and the infused substances therein fall into the dissolved liquid in the bottle body below, so that infusing is formed. The brewing structure has the following defects: the capacity bin has no anti-theft design, so that whether the capacity bin is opened or not is not known, and the filling in the capacity bin is inconvenient. For bottle caps with anti-theft design of the capacity bin, most of the anti-theft rings are damaged in a rotating mode, the anti-theft rings are required to be damaged by rotating and then pressed to open the capacity bin, and the use is inconvenient. Moreover, the manner in which the capacity bin is pressed open is relatively inconvenient and adversely affects the sealability.

Disclosure of Invention

The utility model aims to provide an improved bottle cap with a storage cavity and a container with the bottle cap, wherein the storage cavity has an anti-theft design, is convenient to open, has good sealing performance and is convenient to fill.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a bottle cap with a storage cavity, comprising:

a body for engagement over a mouth of a bottle, the body being hollow and having open upper and lower ends;

a screw rod which is inserted into the main body so as to be movable up and down, wherein a first thread is provided at a top end portion of the screw rod, and a cap portion which can close a lower end portion of the main body is formed at a bottom end portion of the screw rod;

a screw cap which closes an upper end portion of the main body and is rotatable with respect to the main body, the screw cap having a connecting portion extending downward into the main body, the connecting portion being provided with a second thread, the first thread and the second thread being engaged with each other to connect the connecting portion and the screw;

the outer cover is provided with a rotating part, a first anti-theft ring and a fixing part, wherein the rotating part is sleeved outside the rotating cover to drive the rotating cover to rotate, the fixing part is sleeved outside the main body and is fixedly connected with the main body, and the first anti-theft ring is arranged between the rotating part and the fixing part and is configured to break when the rotating part rotates;

the bottle cap is provided with a sealing state and an opening state, in the sealing state, the blank cap part is positioned in the lower end part of the main body to seal the main body, the rotating part and the fixing part are connected through the first anti-theft ring, and a sealed storage cavity is formed in the main body; when the anti-theft ring is in the open state, the first anti-theft ring is broken, the rotating part and the fixing part are separated from each other, and a gap communicated with the storage cavity is formed between the cover part and the lower end part of the main body.

In a preferred embodiment, the screw has an inner cavity with a lower end portion open to be able to communicate with the inside of the bottle, a top end portion of the screw is provided with an air return hole, and the screw cap further has a downwardly extending sealing member capable of closing the air return hole.

In a preferred embodiment, the sealing member is a downwardly extending sealing post, and the sealing post is inserted into the air return hole when the bottle cap is in the sealed state.

Further, the connection portion includes a connection flange extending downward, the connection flange surrounds the sealing member, the second thread is provided on an inner wall of the connection flange, and a tip end portion of the screw is inserted into the connection flange.

In a more preferred embodiment, the second thread is an internal thread and the first thread is an external thread, the first thread and the second thread being configured to allow the screw to move downwards when the screw cap is rotated in a clockwise or counter-clockwise direction.

In a preferred embodiment, the first anti-theft ring includes a plurality of notches disposed along a circumferential direction thereof.

In a preferred embodiment, the wall thickness of the first anti-theft ring is smaller than the rotating portion and the stationary portion.

In a preferred embodiment, the outer surface of the rotating part is provided with ribs for easy gripping and rotation.

In a preferred embodiment, the body has an upper section capable of being exposed above a bottle opening and a lower section located below the bottle opening, the screw extending from the upper section into the lower section; the main body is further provided with a connecting skirt edge, the connecting skirt edge surrounds the lower section, an inner thread for connecting a bottle opening is arranged on the inner side surface of the connecting skirt edge, and a second anti-theft ring is arranged at the lower end of the connecting skirt edge.

In a preferred embodiment, the outer surface of the lower section is covered with a soft rubber sealing layer, in the sealing state, the blank cap part is inserted into the sealing hole of the lower section, and the soft rubber sealing layer extends to the hole wall of the sealing hole.

In a preferred embodiment, a positioning part is further arranged in the main body, the positioning part is located above the sealing hole, and the screw rod passes through the positioning part. Avoiding the screw from deviating from the predetermined position. Optionally, the positioning part is a positioning ring, the positioning ring is connected to the inner surface of the main body through a plurality of connecting ribs arranged at intervals, and the screw rod passes through the positioning ring. Optionally, the positioning ring is a positioning hole provided on the main body.

In a preferred embodiment, the sealing hole comprises a stepped hole, the upper portion of which has a smaller bore diameter than the lower portion thereof.

In a preferred embodiment, the storage chamber stores honey.

The embodiment also adopts the following technical scheme:

the container comprises a bottle and a bottle cap connected to the bottle mouth of the bottle, wherein the bottle cap is provided with the storage cavity, solid powder or liquid is stored in the storage cavity, and the solid powder or liquid is isolated from the content in the bottle when the bottle cap is in a sealed state; when the bottle cap is in an open state, the solid powder or liquid and the content in the bottle are mixed with each other.

In a preferred embodiment, the storage chamber stores honey.

Compared with the prior art, the utility model has the following advantages:

when the bottle cap of the storage cavity is required to be opened, the rotating part is screwed along the first direction to break the first anti-theft ring, the rotating part is screwed along the first direction to drive the cap to rotate, the screw rod moves downwards relative to the main body due to the matching effect of the first thread and the second thread to eject the cap part, a gap is formed between the cap part and the lower end part of the main body to allow solid powder or liquid of the storage cavity to flow out, the operation is convenient, in addition, in a sealing state, the cap part seals the lower end part of the main body, the top end part of the screw rod is connected with the cap through the thread, so that the sealing performance of the bottle cap is good, and the condition of loosening and liquid leakage in the transportation process is avoided; the anti-theft ring has an anti-theft design, if the first anti-theft ring is not broken, the storage cavity is not opened, and when the anti-theft ring is opened, the two functions of damaging the first anti-theft ring and opening the storage cavity are realized by rotating the outer cover, so that the anti-theft ring is convenient to use. When filling solid powder or liquid to the storage chamber, can be with screw rod and main part equipment back, pour into solid powder or liquid from the top into, then with the spiral cover screw on the main part, the upper portion screw thread cooperation of spiral cover and screw rod simultaneously is sealed the storage chamber, and the filling is convenient. The storage cavity can also use the space in the bottle, thereby having larger capacity.

Drawings

In order to more clearly illustrate the technical solutions of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a perspective view of a bottle cap according to an embodiment of the present utility model;

fig. 2 is a front view of a bottle cap according to an embodiment of the present utility model;

FIG. 3 is a cross-sectional view of a closure according to an embodiment of the present utility model, wherein the closure is in a closed state;

fig. 4 is a cross-sectional view of a bottle cap according to an embodiment of the present utility model, wherein the bottle cap is in an opened state;

fig. 5 is an exploded view of a bottle cap according to an embodiment of the present utility model;

fig. 6 is an exploded view of a bottle cap according to an embodiment of the present utility model, in which a screw is inserted into a body;

fig. 7 is a schematic view of the cap after closing the upper end of the body.

Wherein,,

1. a main body; 11. an upper end portion; 12. a lower end portion; 13. an upper section; 14. a lower section; 141. a soft rubber sealing layer; 142. sealing the hole; 143. a bottom wall; 15. a connecting skirt; 151. a second anti-theft ring; 152. an internal thread; 16. positioning holes;

2. a screw; 21. a cover part; 22. an inner cavity; 23. an air return hole;

3. screwing the cover; 31. a connection part; 32. a seal;

4. an outer cover; 41. a rotating part; 411. a relief; 42. a first anti-theft ring; 43. a fixing part; 5. a storage chamber; 6. and a through hole.

Detailed Description

Preferred embodiments of the present utility model will be described in detail below with reference to the attached drawings so that the advantages and features of the present utility model can be more easily understood by those skilled in the art. The description of these embodiments is provided to assist understanding of the present utility model, but is not intended to limit the present utility model. In addition, technical features of the embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

The embodiment provides a bottle cap and a container with the bottle cap. The container comprises a bottle, and the bottle cap is connected to the bottle mouth of the bottle. Referring to fig. 1 to 7, the bottle cap has a storage chamber 5, and solid powder or liquid is stored in the storage chamber 5. The bottle cap has a sealed state as shown in fig. 3 and an opened state as shown in fig. 4. When the bottle cap is in a sealed state, the solid powder or liquid is isolated from the content in the bottle. Specifically, the storage chamber 5 of the present embodiment is filled with honey. When the bottle cap is in an open state, the solid powder or liquid and the content in the bottle are mixed with each other.

Referring to fig. 1 to 7, the bottle cap includes a main body 1, a screw 2, a screw cap 3, and an outer cap 4. Wherein, the material of enclosing cover 4, main part 1 is PP, and the material of spiral cover 3 is HDPE.

Further, referring to fig. 5, the main body 1 is for engagement with a mouth of a bottle, the main body 1 is hollow and has an open upper end 11 and a lower end 12, the bottom end of the screw 2 closes the lower end 12 of the main body 1, and the cap 3 closes the upper end 11 of the main body 1.

The screw rod 2 comprises a cover part 21 positioned at the bottom end part of the screw rod 2, the cover part 21 is made of PP, and further, the screw rod 2 is integrally injection molded by the PP. The outer diameter of the cap portion 21 is larger than the outer diameter of the other portion of the screw 2, and the cap portion 21 closes the lower end portion 12 of the main body 1. The screw 2 is inserted into the main body 1 so as to be movable up and down, and a first thread is provided at a tip end portion of the screw 2. Further, the screw 2 has an inner cavity 22, and a lower end of the inner cavity 22 is opened to be able to communicate with the inside of the bottle. The screw 2 has a gas return hole 23 at the tip end, and the screw cap 3 further has a seal 32 extending downward to close the gas return hole 23. Specifically, the sealing member 32 is a downwardly extending sealing post, and the sealing post is inserted into the air return hole 23 when the bottle cap is in a sealed state. When the bottle cap is changed from the sealing state to the opening state, the screw rod 2 moves downwards relative to the main body 1, the air return hole 23 is separated from the sealing piece 32, and air escapes from the upper end 11 of the main body 1 through the air return hole 23, so that the storage cavity 5 is prevented from being in a vacuum state, and solid powder or liquid in the storage cavity 5 cannot flow out.

The main body 1 has an upper section 13 capable of being exposed above the bottle mouth, a lower section 14 located below the bottle mouth, and a connecting skirt 15, and the screw 2 extends from the upper section 13 into the lower section 14. The connecting skirt 15 is provided around the lower section 14, an internal thread 152 for connecting the bottle mouth is provided on the inner side surface of the connecting skirt 15, and a second anti-theft ring 151 is provided at the lower end of the connecting skirt 15. When the cap is rotated relative to the neck to open the neck, the body 1 and the connecting skirt 15 are rotated relative to each other, and the second anti-theft ring 151 breaks, indicating that the neck is opened.

The outer surface of the lower section 14 is covered with a soft sealing layer 141, and in a sealed state, the cap portion 21 is inserted into the sealing hole 142 of the lower section 14, and the soft sealing layer 141 extends to the wall of the sealing hole 142. The seal hole 142 is specifically a stepped hole, and the hole diameter of the upper portion of the stepped hole is smaller than the hole diameter of the lower portion thereof. The bottom of the lower section 14 has a bottom wall 143, the sealing hole 142 is formed on the bottom wall 143, the bottom wall 143 is further formed with a positioning hole 16, the positioning hole 16 is located above the sealing hole 142, the aperture of the positioning hole 16 is smaller than that of the sealing hole 142, and the screw 2 passes through the positioning hole 16. The bottom wall 143 also has a plurality of through holes 6 provided around the positioning hole 16, extending from the upper surface of the bottom wall 143 to a portion between the positioning hole 16 and the seal hole 142.

The screw cap 3 is rotatable relative to the main body 1, the screw cap 3 has a connection portion 31 extending downward into the main body 1, the connection portion 31 is specifically a connection flange extending downward, the connection flange surrounds the sealing member 32, a second thread is provided on an inner wall of the connection flange, and a tip end portion of the screw 2 is inserted into the connection flange. The first screw thread and the second screw thread mutually cooperate in order to connect connecting portion 31 and screw rod 2, and connecting portion 31 and screw rod 2 pass through threaded connection, have improved the sealing performance of bottle lid. Specifically, the second screw thread is an internal screw thread, the first screw thread is an external screw thread, and the first screw thread and the second screw thread are configured to allow the screw 2 to move downward when the cap 3 is rotated in a clockwise or counterclockwise direction.

The outer cover 4 has a rotating portion 41, a first anti-theft ring 42, and a fixing portion 43, and a ridge 411 for easy gripping and rotation is provided on the outer surface of the rotating portion 41. The rotating part 41 is sleeved outside the rotary cover 3 to drive the rotary cover 3 to rotate, the fixing part 43 is sleeved outside the main body 1 and is fixedly connected with the main body 1, the first anti-theft ring 42 is arranged between the rotating part 41 and the fixing part 43 and is configured to break when the rotating part 41 rotates, and when the bottle cap is used, the rotating part 41 rotates, the first anti-theft ring 42 breaks to indicate that the bottle cap is not used. More specifically, the first anti-theft ring 42 includes a plurality of notches provided in a circumferential direction thereof, and the first anti-theft ring 42 has a wall thickness smaller than that of the rotating portion 41 and the fixed portion 43, thereby forming a ring of teeth, which are broken when subjected to a torsion force.

When the bottle cap of the embodiment is in a sealing state, the blank cap part 21 is positioned in the lower end part 12 of the main body 1 to seal the same, the spiral cap 3 seals the upper end part 11 of the main body 1, the rotating part 41 and the fixed part 43 are connected through the first anti-theft ring 42, and a sealed storage cavity 5 is formed inside the main body 1; in the open state, the first anti-theft ring 42 is broken, the rotating portion 41 and the fixing portion 43 are separated from each other, and a gap communicating with the storage chamber 5 is formed between the cap portion 21 and the lower end portion 12 of the body 1 to release liquid or fix powder.

When the bottle cap of the embodiment is assembled, the screw rod 2 is inserted into the main body 1, the lower end 12 of the main body 1 is sealed by the cover part 21 to realize the lower end sealing, then liquid or powder is injected into the storage cavity 5, the spiral cover 3 is screwed in, sleeved outside the upper end 11 of the main body 1 and locked with the top end of the screw rod 2, the sealing element 32 is inserted into the air return hole 23 to realize the upper end sealing, and finally the outer cover 4 is sleeved on the spiral cover 3 and the main body 1. When the bottle cap is used, the rotary part 41 is screwed along the first direction, so that the first anti-theft ring 42 is broken, the rotary part 41 is screwed along the first direction continuously to drive the rotary cap 3 to rotate, the screw rod 2 moves downwards relative to the main body 1 due to the cooperation of the first thread and the second thread to eject the cap part 21, and a gap is formed between the cap part 21 and the lower end part 12 of the main body 1 to allow solid powder or liquid in the storage cavity 5 to flow out; when the bottle cap is rotated again and the bottle cap rotates relative to the bottle mouth to open the bottle mouth, the main body 1 and the connecting skirt 15 rotate relatively, and the second anti-theft ring 151 breaks, which means that the bottle mouth is opened.

The bottle cap of the embodiment has at least the following advantages:

(1) When the storage cavity 5 needs to be opened, the rotary part 41 is screwed along the first direction, so that the first anti-theft ring 42 is broken, the rotary part 41 is screwed along the first direction continuously to drive the rotary cover 3 to rotate, the screw rod 2 moves downwards relative to the main body 1 due to the cooperation of the first thread and the second thread to eject the cover part 21, and a gap is formed between the cover part 21 and the lower end part 12 of the main body 1 to allow solid powder or liquid in the storage cavity 5 to flow out, so that the operation is convenient;

(2) In a sealing state, the lower end 12 of the main body 1 is sealed by the blank cap part 21, and the top end of the screw rod 2 is connected with the screw cap 3 through threads, so that the sealing performance of the bottle cap is good, and the condition of loosening and liquid leakage in the transportation process is avoided;

(3) The anti-theft device has an anti-theft design, if the first anti-theft ring 42 is not broken, the storage cavity 5 is not opened, and when the anti-theft device is opened, the two functions of damaging the first anti-theft ring 42 and opening the storage cavity 5 are realized by rotating the outer cover 4, so that the anti-theft device is convenient to use;

(4) The screw rod 2 is provided with the air return hole 23, when the bottle cap is converted from a sealing state to an opening state, the screw rod 2 moves downwards relative to the main body 1, the air return hole 23 is separated from the sealing piece 32, and gas escapes from the upper end part 11 of the main body 1 through the air return hole 23, so that the storage cavity 5 is prevented from being in a vacuum state, and solid powder or liquid in the storage cavity 5 cannot flow out;

(5) When solid powder or liquid is filled into the storage cavity 5, after the screw rod 2 and the main body 1 are assembled, the solid powder or liquid is filled from the upper part, then the spiral cover 3 is screwed on the main body 1, and meanwhile, the spiral cover 3 is matched with the upper part of the screw rod 2 in a threaded manner, so that the storage cavity 5 is sealed, and the filling is convenient;

(6) The storage cavity can also use the space in the bottle, thereby having larger capacity.

In the description of the present utility model, it should be noted that the positional or positional relationship indicated by the terms such as "upper", "lower", "vertical", "horizontal", "inner", "outer", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The above-described embodiments are provided for illustrating the technical concept and features of the present utility model, and are intended to be preferred embodiments for those skilled in the art to understand the present utility model and implement the same according to the present utility model, not to limit the scope of the present utility model. All equivalent changes or modifications made according to the spirit of the present utility model should be included in the scope of the present utility model.

Claims

1. A bottle cap with a storage cavity, comprising:

a body (1) for engagement on the mouth of a bottle, said body (1) being hollow and having an open upper end (11) and a lower end (12);

a screw (2) that is inserted into the main body (1) so as to be movable up and down, wherein a first thread is provided at the top end of the screw (2), and a cap (21) that can close the lower end (12) of the main body (1) is formed at the bottom end of the screw (2);

a screw cap (3) closing an upper end (11) of the main body (1) and being rotatable relative to the main body (1), the screw cap (3) having a connecting portion (31) extending downwardly into the main body (1), the connecting portion (31) being provided with a second thread, the first and second threads cooperating with each other to connect the connecting portion (31) and the screw (2);

an outer cover (4) having a rotating part (41), a first anti-theft ring (42) and a fixing part (43), wherein the rotating part (41) is sleeved outside the rotating cover (3) to drive the rotating cover (3) to rotate, the fixing part (43) is sleeved outside the main body (1) and fixedly connected with the main body, and the first anti-theft ring (42) is arranged between the rotating part (41) and the fixing part (43) and is configured to break when the rotating part (41) rotates;

wherein the bottle cap has a sealing state and an opening state, in the sealing state, the blank cap part (21) is positioned in the lower end part (12) of the main body (1) to seal the blank cap part, the rotating part (41) and the fixing part (43) are connected through the first anti-theft ring (42), and a sealed storage cavity (5) is formed inside the main body (1); in the open state, the first anti-theft ring (42) is broken, the rotating part (41) and the fixing part (43) are separated from each other, and a gap communicated with the storage cavity (5) is formed between the cover part (21) and the lower end part (12) of the main body (1).

2. The bottle cap with a storage cavity according to claim 1, characterized in that the screw (2) is provided with an inner cavity (22), the lower end of the inner cavity (22) is opened to be communicated with the interior of the bottle, the top end of the screw (2) is provided with an air return hole (23), and the screw cap (3) is further provided with a sealing piece (32) which extends downwards and can seal the air return hole (23).

3. A closure with a storage cavity according to claim 2, characterized in that the sealing member (32) is a downwardly extending sealing post which, in the sealed state of the closure, is inserted into the return air hole (23).

4. A closure with a storage cavity according to claim 2, characterized in that the connecting part (31) comprises a downwardly extending connecting flange surrounding the sealing member (32), the second thread being provided on the inner wall of the connecting flange, the top end of the screw (2) being inserted into the connecting flange.

5. The bottle cap with storage cavity according to claim 1, characterized in that the second thread is an internal thread and the first thread is an external thread, the first thread and the second thread being configured to allow the screw (2) to move downwards when the screw cap (3) is turned in a clockwise or counter-clockwise direction.

6. The bottle cap with storage cavity according to claim 1, characterized in that the first anti-theft ring (42) comprises a plurality of indentations arranged along its circumferential direction and/or that the wall thickness of the first anti-theft ring (42) is smaller than the rotating part (41) and the fixing part (43).

7. The bottle cap with storage cavity according to claim 6, wherein the outer surface of the rotating part (41) is provided with a ridge (411) for easy grip rotation.

8. The bottle cap with storage cavity according to claim 1, characterized in that the body has an upper section (13) capable of being exposed above the bottle mouth and a lower section (14) located below the bottle mouth, the screw (2) extending from the upper section (13) into the lower section (14); the main body (1) is further provided with a connecting skirt edge (15), the connecting skirt edge (15) surrounds the lower section (14), an inner thread (152) for connecting a bottle opening is arranged on the inner side surface of the connecting skirt edge (15), and a second anti-theft ring (151) is arranged at the lower end of the connecting skirt edge (15).

9. The bottle cap with storage cavity according to claim 8, characterized in that the outer surface of the lower section (14) is covered with a soft sealing layer (141), in the sealed state the closure part (21) is inserted into the sealing hole (142) of the lower section (14), the soft sealing layer (141) extending onto the wall of the sealing hole (142).

10. The bottle cap with a storage cavity according to claim 9, characterized in that a positioning part is further arranged in the main body (1), the positioning part is positioned above the sealing hole (142), and the screw (2) passes through the positioning part.

11. The bottle cap with storage chamber according to claim 9, wherein the sealing hole (142) comprises a stepped hole having a smaller pore diameter at an upper portion than at a lower portion thereof.

12. A container comprising a bottle and a cap connected to the mouth of the bottle, characterized in that the cap is a cap with a storage chamber according to any one of claims 1 to 11, the storage chamber (5) being filled with a solid powder or liquid, the solid powder or liquid being isolated from the contents of the bottle when the cap is in a sealed condition; when the bottle cap is in an open state, the solid powder or liquid and the content in the bottle are mixed with each other.