CN115946965A

CN115946965A - Bottle cap and container with same

Info

Publication number: CN115946965A
Application number: CN202310092256.9A
Authority: CN
Inventors: 黄益新
Original assignee: Shanghai Jienuode Plastic Products Co ltd; Anhui Jnd Plastic Packaging Co ltd
Current assignee: Shanghai Jienuode Plastic Products Co ltd; Anhui Jnd Plastic Packaging Co ltd
Priority date: 2023-01-17
Filing date: 2023-01-17
Publication date: 2023-04-11

Abstract

The application relates to a bottle cap and a container with the bottle cap, the bottle cap comprises a top cap and a connecting cap, the top cap comprises a cap body and an inner tube, the inner tube is arranged in the cap body, the inner tube is matched with the top surface of the cap body to form a containing cavity, the connecting cap is provided with an inner channel, one end of the connecting cap is used for being connected with a bottle mouth, the other end of the connecting cap is used for allowing the inner tube to penetrate and be connected with the cap body, a partition plate used for partitioning the inner channel of the connecting cap is arranged in the connecting cap, and the cap body can be screwed on the connecting cap to enable the inner tube to face to or be away from the partition plate; the top surface of the partition board facing the inner pipe is provided with a touch bulge, the touch bulge is arranged opposite to the inner pipe and is positioned on the movable path of the inner pipe, and the edge of the connecting cover is thinned and connected with the partition board; the partition board is connected with the connecting cover through a thickened part at one end far away from the touch bulge. The beverage container has the advantages that the additive can be added into the container when the container is opened, and the edible mouthfeel or the nutritional ingredients of the beverage are guaranteed.

Description

Bottle cap and container with same

Technical Field

The present application relates to a bottle cap and a container having the same.

Background

As is well known, common beverages are prepared by adding additives into water in advance and are drunk by people directly opening a bottle cap when the beverage is drunk. However, if some of the additives for drinking the beverage are added into water for too long time, the taste of the beverage is affected or the beverage is deteriorated and the nutritional ingredients are changed.

Disclosure of Invention

In order to enable an additive to be added to a container when the container is to be used, the application provides a bottle cap and a container with the bottle cap.

In a first aspect, the application provides a bottle cap, which adopts the following technical scheme:

a bottle cap comprises a top cap and a connecting cap, wherein the top cap comprises a cap body and an inner tube, the inner tube is arranged in the cap body, the inner tube is matched with the top surface of the cap body to form a containing cavity, the connecting cap is provided with an inner channel, one end of the connecting cap is used for being connected with a bottle mouth, the other end of the connecting cap is used for allowing the inner tube to penetrate and is used for being connected with the cap body, a partition plate used for partitioning the inner channel of the connecting cap is arranged in the connecting cap, and the cap body can be screwed on the connecting cap to enable the inner tube to face to or be far away from the partition plate; the top surface of the partition board facing the inner pipe is provided with a touch bulge, the touch bulge is opposite to the inner pipe and is positioned on the movable path of the inner pipe, and the edge of the partition board is thinned and is connected with the connecting cover; the partition plate is further connected with the connecting cover through a thickened part at one end far away from the touch protrusion.

By adopting the technical scheme, when the cap body is screwed down, the inner pipe moves towards the partition plate and is abutted against the touch protrusion, so that the touch protrusion is stressed. Touch protruding transmission thrust to the baffle, because the thickening department at the edge of baffle can bear bigger stress than the department of thinning, consequently the department of thinning breaks at first, and the baffle is around the natural whereabouts of thickening department under touching protruding promotion to make the content that holds the chamber outwards let out. Therefore, when the beverage bottle is used, the contents in the top cover can be released into the bottle only by screwing the top cover on the bottle, the beverage bottle is very convenient, the drinking taste of the beverage can be ensured, and the additive is prevented from being deteriorated after being dissolved in water for a long time.

In addition, with the structure, after the top cover is filled with the content, the inner tube does not need to be directly sealed, the content to be filled does not need to be packaged, and only the top cover needs to be maintained in an inverted state, and the connecting cover is aligned with the top cover and screwed on. Through this kind of mode, can effectively avoid extra process to bottle lid content emergence pollution, perhaps bottle lid content takes place to reveal, and has reduced the intermediate process that needs in order to avoid taking place the pollution.

Optionally, the edge of the connection cover is connected to the partition plate through a film.

Through adopting above-mentioned technical scheme, the film can play the connection effect to the baffle, can conveniently take place to tear when the atress simultaneously.

Optionally, an annular necking used for being in interference fit with the inner pipe is arranged on the inner wall of the connecting cover, and the annular necking is located in the middle section of the movable path of the inner pipe.

Through adopting above-mentioned technical scheme, annular throat is used for sealed inner tube, prevents that the content of inner tube from taking place to reveal. Meanwhile, resistance can be provided for the movement of the inner tube, and the possibility of mistaken opening is reduced.

Optionally, the end surface of the inner pipe close to the partition plate is in transition with the outer side surface of the inner pipe through a fillet.

Through adopting above-mentioned technical scheme, the fillet is used for guiding the inner tube slip-in annular throat.

Optionally, the inner diameter of the annular constriction is slightly smaller than the outer diameter of the inner tube.

Through adopting above-mentioned technical scheme for annular throat and inner tube can interference fit.

Optionally, when the cap body is connected to the connection cover, the inner tube is squeezed into one end of the annular constriction, which is far away from the partition plate, through the fillet and is in sealing abutment with the annular constriction.

Through adopting above-mentioned technical scheme, when the cap body is connected with the connecting cover, inner tube, annular throat, baffle and cap body can cooperate and form airtight space.

Optionally, the inner tube is a circular tube, and the inner cavity of the cap body is cylindrical.

Optionally, the cap body is in a shape of a round tube with one closed end.

Optionally, the partition plate is a circular plate, and the inner tube and the partition plate are coaxially arranged.

Through adopting above-mentioned technical scheme, touch protruding the edge that is close to that can be located the baffle for the edge of baffle is bigger at the part moment that receives of keeping away from the thickening portion, breaks more easily.

Optionally, the connecting cap comprises a connecting pipe for connecting with the cap body and a screwing pipe for connecting with the bottle mouth, the connecting pipe is communicated with the screwing pipe, and one end of the connecting pipe is connected to one end of the screwing pipe through a connecting part.

By adopting the technical scheme, the twisting pipe is used for holding the force of the hands.

Optionally, the inner diameter of the cap body is smaller than the outer diameter of the screwing pipe, and a limiting surface facing the cap body is formed on the connecting portion.

Optionally, a path from one end of the opening of the cap body to the limiting surface is the movable path, and the length of the movable path is greater than or equal to the distance from one end of the inner tube close to the partition plate to the touch protrusion.

Optionally, the cap body is provided with a lock catch ring, and the lock catch ring is sleeved on the cap body and is connected with the outer side wall of the cap body through a plurality of first fracture contacts.

Through adopting above-mentioned technical scheme, the shackle plays the hindrance effect to the motion of the cap body in the direction of screwing up. When the cap body is screwed down, the first fracture contact between the lock catch ring and the cap body fractures, so that the limiting effect of the lock catch ring on the cap body disappears, and the cap body can further move along a movable path.

Optionally, the first breaking contacts are uniformly arranged in the circumferential direction of the locking ring.

Optionally, the inner diameter of the latch ring is not smaller than the outer diameter of the cap body.

Optionally, the spacing face is kept away from the edge of connecting pipe to twist the sunken step that forms of pipe, the side of step is formed with the joint recess, the medial surface of hasp ring is provided with the joint arch, the joint arch inlays and locates in the joint recess.

Through adopting above-mentioned technical scheme, protruding and the cooperation of joint recess of joint prevent that the snap close ring from taking place to drop. Meanwhile, the locking ring can generate a blocking effect on the forward or reverse screwing of the cap body.

Optionally, the outer side wall of the connecting cover is provided with a first limiting protrusion, the inner side wall of the cap body is provided with a second limiting protrusion, and the first limiting protrusion is located between a starting point and an end point of a movable path of the second limiting protrusion.

Optionally, the first limiting protrusion is sequentially formed with a first inclined surface and a first limiting surface in a screwing direction of the cap body relative to the connecting pipe, the first inclined surface is inclined toward the screwing direction of the cap body relative to the connecting pipe in a direction away from the connecting pipe, and the first limiting surface extends in a direction away from an axis of the connecting pipe.

Optionally, the first limiting surface is perpendicular to the outer side surface of the connecting pipe.

Optionally, the second limiting protrusion is sequentially formed with a second inclined surface and a second limiting surface in a tightening direction of the connecting pipe relative to the cap body, the second inclined surface is inclined toward the tightening direction of the connecting pipe relative to the cap body in a direction close to the axis of the cap body, and the second limiting surface extends in a direction close to the axis of the cap body.

Optionally, the second limiting surface is perpendicular to the inner side surface of the cap body.

Through adopting above-mentioned technical scheme, through the cooperation of first spacing arch and second spacing arch, can make the cap body can only screw up and can not unscrew.

Optionally, a sealing ring is further formed on the connecting portion, the sealing ring is located in the screwing pipe and is arranged opposite to the inner wall of the screwing pipe, and the sealing ring is matched with the screwing pipe to form a sealing groove for embedding the bottle mouth.

Through adopting above-mentioned technical scheme for prevent that the liquid in the bottle from permeating in the bottle lid.

Optionally, a vertical distance from the outer wall of the inner pipe to the inner wall of the sealing ring is not less than the thickness of the partition plate.

Optionally, the sealing ring and the cylindrical curved surface where the outer side wall of the inner tube is located are matched to form an avoidance concave angle, and the avoidance concave angle is used for allowing the partition plate to enter when the partition plate rotates around the thickened portion.

Through adopting above-mentioned technical scheme for receive the interference when avoiding the cap body to rotate downwards.

Optionally, the holding cavity is used for holding powder or liquid or particles.

Optionally, the bottle further comprises a fracture connecting ring, and the fracture connecting ring is arranged at one end, far away from the connecting pipe, of the screwing pipe and is used for being sleeved on the bottle mouth.

Optionally, the break connection ring is connected to an end of the screw tube away from the connection tube via a plurality of second break contacts.

Optionally, a rotation indication mark is arranged on the end surface of the cap body far away from the opening of the cap body.

Optionally, the outer side wall of the connecting pipe is provided with first threads, the inner side wall of the cap body is provided with second threads, and the first threads are matched with the second threads.

Optionally, a first anti-slip structure is arranged on the outer side wall of the screwing pipe.

Optionally, the first anti-slip structure is a plurality of stripes.

Optionally, the stripes are distributed in a net shape.

Optionally, the stripes extend radially along the screwing pipe and are arranged circumferentially.

Optionally, the first anti-slip structure is a plurality of bumps.

Optionally, the first anti-slip structure is a frosted surface.

Optionally, the outer side wall of the cap body is provided with a second anti-slip structure.

Optionally, the second anti-slip structure is a plurality of stripes.

Optionally, the stripes are distributed in a net shape.

Optionally, the second anti-slip structure is a plurality of bumps.

Optionally, the second anti-slip structure is a frosted surface.

In a second aspect, the present application provides a container, which adopts the following technical solutions:

a container comprises the bottle cap and a bottle body, wherein the bottle cap is arranged on the bottle body.

Drawings

Fig. 1 is an exploded view of a closure according to an embodiment of the present application.

Fig. 2 is an overall schematic view of the top cover in the embodiment of the present application.

Fig. 3 is a partial cross-sectional view of a top cover in an embodiment of the present application.

Fig. 4 is a partial sectional view of the connection cap in the embodiment of the present application.

Fig. 5 is a view for illustrating an initial state of the top cover after being assembled to the connection cover in the embodiment of the present application.

Fig. 6 is a view for illustrating a state in which the top cover is assembled after the connection cover is screwed to release the contents in the embodiment of the present application.

Description of reference numerals:

1. a top cover; 11. a cap body; 111. a second thread; 112. a second limit bulge; 1121. a second inclined plane; 1122. a second limiting surface; 113. a second anti-slip structure; 12. an inner tube; 121. a containing cavity; 122. round corners; 13. a locking ring; 131. a first breaking contact; 132. clamping the bulges;

2. a connecting cover; 21. a connecting pipe; 211. a first thread; 212. a first limit protrusion; 2121. a first inclined plane; 2122. a first limiting surface; 22. screwing the pipe; 221. a first anti-skid structure; 23. a connecting portion; 231. a limiting surface; 232. a step; 233. clamping the groove; 234. a seal ring; 235. a sealing groove; 236. avoiding a reentrant angle; 24. a partition plate; 25. touching the protrusion; 26. thickening part; 27. an annular necking; 271. a first rounded corner;

3. the connecting ring is broken.

Detailed Description

The present application will be described in further detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

Unless explicitly defined otherwise, the terms "a," "an," and "the" are not intended to refer to a singular entity, but include the general class of which a particular example may be used for illustration. Thus, use of the terms "a" or "an" can mean any number of at least one, including "a," one or more, "" at least one, "and" one or more than one. The term "or" means any of the alternatives and any combination of alternatives, including all alternatives, unless alternatives are explicitly indicated as mutually exclusive. The phrase "at least one of," when combined with a list of items, refers to a single item in the list or any combination of items in the list. The phrase does not require all of the listed items unless explicitly so limited.

The embodiment of the application discloses a bottle cap. Referring to fig. 1, the bottle cap includes an upper cap 1 and a connecting cap 2, the connecting cap 2 being adapted to be detachably mounted on a mouth of a bottle, and a user can access an object in the bottle through the mouth after separating the connecting cap 2 and the mouth of the bottle. The cap 1 is used to contain the contents, which may be powder or liquid or granules, and the cap 1 can release the contents, which are introduced into the bottle after the cap 2 is attached, and mixed with the contents in the bottle. For example, the bottle is a beverage bottle, liquid water is contained in the bottle, the content in the top cover 1 is tea powder, and the tea powder in the top cover 1 is released into the liquid water through the connecting cover 2 to form tea water.

Referring to fig. 2 and 3, the cap 1 comprises a cap body 11 and an inner tube 12, in different embodiments, the outer side of the cap body 11 may have different shapes, such as prism or cylinder, in this embodiment, the cap body 11 has a circular tube shape with one end closed, and the inner cavity of the cap body 11 has a cylindrical shape. The inner tube 12 is located inside the cap body 11 and is integrally connected with the cap body 11, and the inner tube 12 is a circular tube and is coaxially arranged with the cap body 11. The inner tube 12 cooperates with the top surface of the cap 11 to form a holding cavity 121, and the holding cavity 121 is used for holding contents, which may be powder or liquid or particles. The end face of the cap body 11 far away from the opening of the cap body is provided with a rotation indication mark.

Referring to fig. 3 and 4, the connection cap 2 has an inner passage and one end for connection with a mouth of the bottle and the other end for penetration of the inner tube 12 and for connection with the cap body 11. Specifically, the connection cover 2 comprises a connection pipe 21 connected with the cap body 11 and a screwing pipe 22 connected with the bottle mouth, the screwing pipe 22 and the connection pipe 21 are round pipes and are coaxially arranged, the connection pipe 21 is communicated with the screwing pipe 22, and one end of the connection pipe 21 is connected to one end of the screwing pipe 22 through a connection part 23.

The connection tube 21 and the cap 11 can be connected by different connection methods, such as sliding connection or screw connection, but any connection method in which the cap 11 can be pre-fixed on the connection cover 2 and can move towards the connection cover 2 is sufficient. As an example, the outer side wall of the connecting pipe 21 is provided with a first thread 211, the inner side wall of the cap body 11 is provided with a second thread 111, and the first thread 211 and the second thread 111 are mutually matched. During assembly, the cap 11 is pre-screwed on the connecting pipe 21, so that the cap 11 and the connecting pipe 21 are pre-fixed, and the cap 11 is not screwed to the bottom on the connecting pipe 21. Specifically, the inner diameter of the cap body 11 is smaller than the outer diameter of the screw tube 22, the connecting portion 23 is formed with a stopper surface 231 facing the cap body 11, and a path from the open end of the cap body 11 to the stopper surface 231 is a movable path of the cap body 11. It should be noted that the movable path described in the present application refers to a moving path on the axis of the cap body 11, regardless of the movement of the cap body 11 in the circumferential direction.

Referring to fig. 4, the inside of the connection pipe 21 is provided with a partition 24 for blocking an inner passage of the connection pipe 21, and the cap body 11 can be screwed on the connection pipe 21 to move the inner pipe 12 toward or away from the partition 24. Specifically, the partition plate 24 is a circular plate, the end surface of the partition plate 24 close to the inner cavity of the connection pipe 21 is adapted to the cross-sectional shape of the connection pipe 21, and the partition plate 24 is coaxial with the inner pipe 12 when the top cover 1 and the connection cover 2 are assembled together. The edge of the partition plate 24 is thinned and connected to the connection pipe 21 or the connection part 23, that is, the installation position of the partition plate 24 may be changed, but the thinned edge may be engaged with the partition plate 24 to close one end of the connection pipe 21. As an example, the edge of the connection cover 2 is connected to the partition 24 by a film.

Referring to fig. 5 and 6, the partition 24 is provided with a touching protrusion 25 towards the top surface of the inner tube 12, the touching protrusion 25 is arranged opposite to the inner tube 12 and is located on the movable path of the inner tube 12, and the length of the movable path of the cap 11 is greater than or equal to the distance from one end of the inner tube 12 close to the partition 24 to the touching protrusion 25. The diaphragm 24 is also connected to the connecting cover 2 at the end remote from the actuating projection 25 by a thickening 26.

An annular reducing opening 27 used for being in interference fit with the inner pipe 12 is arranged on the inner wall of the connecting cover 2, and the annular reducing opening 27 is located in the middle section of the movable path of the inner pipe 12. Specifically, the inner diameter of the annular throat 27 is slightly smaller than the outer diameter of the inner tube 12, the end of the annular throat 27 away from the partition plate 24 is transited to the inner side wall of the annular throat 27 through a first fillet 271, and the end surface of the inner tube 12 close to the partition plate 24 is transited to the outer side surface of the inner tube 12 through a second fillet 122. When the cap body 11 is connected to the connection cover 2, the inner tube 12 is pushed into the end of the annular recession 27 away from the partition 24 through the second rounded corner 122 and is in sealing abutment with the annular recession 27.

The cap body 11 is provided with a lock catch ring 13, the lock catch ring 13 is in a circular ring shape, and the inner diameter of the lock catch ring 13 is not smaller than the outer diameter of the cap body 11. The latch ring 13 is sleeved on the cap body 11 and connected to the outer sidewall of the cap body 11 through a plurality of first breaking contacts 131. The first breaking contacts 131 are arranged uniformly in the circumferential direction of the catch ring 13.

The edge of the limiting surface 231 far away from the connecting pipe 21 is recessed towards the screwing pipe 22 to form a step 232, a clamping groove 233 is formed on the side surface of the step 232, a clamping protrusion 132 is arranged on the inner side surface of the locking ring 13, and the clamping protrusion 132 is embedded in the clamping groove 233. Clamping protrusion 132 and clamping groove 233 cooperate to prevent shackle 13 from falling off. Meanwhile, the locking ring 13 can block the cap body 11 from being twisted forward or reversely. When cap 11 is tightened, first breaking contact 131 is broken, and cap 11 continues to move into the gap between latch ring 13 and connecting tube 21.

Optionally, in another embodiment, a sealing ring 234 is formed on the connecting portion 23, the sealing ring 234 is located in the screwed pipe 22 and is disposed opposite to the inner wall of the screwed pipe 22, and the sealing ring 234 and the screwed pipe 22 cooperate to form a sealing groove 235 for the bottle mouth to be inserted into. The vertical distance from the outer wall of the inner tube 12 to the inner wall of the sealing ring 234 is not less than the thickness of the partition 24.

Further, in another embodiment, the sealing ring 234 and the cylindrical curved surface of the outer sidewall of the inner tube 12 cooperate to form a recessed relief angle 236, since the thickness of the partition 24 is small and the partition is easily deformed when using plastic as the material, and the recessed relief angle 236 is used for the partition 24 to enter when rotating around the thickened portion 26, thereby being capable of reducing the interference when the cap body 11 rotates downward.

Optionally, in an embodiment, the outer side wall of the connecting pipe 21 is provided with a first limiting protrusion 212, the inner side wall of the cap body 11 is provided with a second limiting protrusion 112, and the first limiting protrusion 212 is located between the start point and the end point of the movable path of the second limiting protrusion 112. Specifically, the first limit projection 212 is formed with a first inclined surface 2121 and a first limit surface 2122 in this order in the tightening direction of the cap body 11 with respect to the connection pipe 21, the first inclined surface 2121 is inclined in the tightening direction of the cap body 11 with respect to the connection pipe 21 in the direction away from the connection pipe 21, and the first limit surface 2122 extends in the direction away from the axis of the connection pipe 21. Optionally, the first limiting surface 2122 is perpendicular to the outer side surface of the connecting pipe 21.

The second stopper protrusion 112 has a second inclined surface 1121 and a second stopper surface 1122 formed in this order in the tightening direction of the connection pipe 21 with respect to the cap body 11, the second inclined surface 1121 being inclined in the tightening direction of the connection pipe 21 with respect to the cap body 11 in the direction closer to the axis of the cap body 11, and the second stopper surface 1122 being extended in the direction closer to the axis of the cap body 11. Optionally, the second position-limiting surface 1122 is perpendicular to the inner surface of the cap 11.

One end of the screwing pipe 22 far away from the connecting pipe 21 is also provided with a fracture connecting ring 3, and the fracture connecting ring 3 is used for being sleeved on a convex ring at the bottle mouth. As an example, the break connecting ring 3 is connected to the end of the screwed pipe 22 remote from the connecting pipe 21 by several second break contacts.

Optionally, a first anti-slip structure 221 is disposed on an outer side wall of the screwing pipe 22. In different embodiments, the first anti-slip structure 221 may be a plurality of stripes, a plurality of bumps, or a frosted surface. Further, the plurality of stripes may be distributed in a net shape or extend radially along the screw pipe 22 and are arranged circumferentially.

Optionally, the outer sidewall of the cap body 11 is provided with a second anti-slip structure 113. In different embodiments, the second anti-slip structure 113 may be a plurality of stripes, a plurality of bumps, or a frosted surface. Further, the plurality of stripes may be distributed in a net shape or extend along the radial direction of the cap body 11 and are arranged in a circumferential direction.

The embodiment of this application still discloses a container, and this container includes bottle lid and bottle as above, and the bottle lid is installed on the bottle. Optionally, a convex ring used for being matched with the fracture connection ring 3 is arranged at the bottle mouth of the bottle body, and threads used for being matched with threads on the inner side wall of the screwing pipe 22 are further arranged on the outer wall of the bottle mouth.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A bottle cap, characterized by comprising a top cap (1) and a connecting cap (2), wherein the top cap (1) comprises a cap body (11) and an inner tube (12), the inner tube (12) is arranged in the cap body (11), the inner tube (12) is matched with the top surface of the cap body (11) to form a containing cavity (121), the connecting cap (2) is provided with an internal passage, one end of the connecting cap is used for being connected with a bottle mouth, the other end of the connecting cap is used for allowing the inner tube (12) to penetrate into and be connected with the cap body (11), a partition plate (24) for partitioning the internal passage of the connecting cap (2) is arranged in the connecting cap (2), and the cap body (11) can be screwed on the connecting cap (2) to enable the inner tube (12) to face to or be far away from the partition plate (24);

the top surface of the partition plate (24) facing the inner pipe (12) is provided with a touch bulge (25), the touch bulge (25) is arranged opposite to the inner pipe (12) and is positioned on the movable path of the inner pipe (12), and the edge of the partition plate (24) is thinned and is connected with the connecting cover (2); the partition (24) is also connected to the connecting cover (2) at the end remote from the activating projection (25) by a thickened portion (26).

2. The bottle cap according to claim 1, characterized in that the edge of the connecting cap (2) is connected to the partition (24) by a membrane.

3. The bottle cap according to claim 1, characterized in that an annular constriction (27) for interference fit with the inner tube (12) is provided on the inner wall of the connecting cap (2), said annular constriction (27) being located in the middle of the movable path of the inner tube (12).

4. The bottle cap according to claim 3, wherein the end surface of the inner tube (12) near the baffle (24) transitions with the outer side surface of the inner tube (12) by a fillet (122).

5. A bottle cap according to claim 3 or 4, wherein the inner diameter of the annular constriction (27) is slightly smaller than the outer diameter of the inner tube (12).

6. The bottle cap according to claim 5, wherein the inner tube (12) is squeezed into the annular constriction (27) at the end thereof remote from the septum (24) by a fillet (122) and sealingly abuts against the annular constriction (27) when the cap body (11) is connected to the connecting cap (2).

7. The bottle cap according to claim 1, wherein the inner tube (12) is a round tube and the inner cavity of the cap body (11) is cylindrical.

8. The bottle cap according to claim 1 or 7, wherein the cap body (11) has a tubular shape closed at one end.

9. The bottle cap according to claim 8, wherein the connection cap (2) comprises a connection tube (21) for connection with the cap body (11) and a screw tube (22) for connection with the mouth, the connection tube (21) communicating with the screw tube (22) and one end of the connection tube (21) being connected to one end of the screw tube (22) through a connection portion (23).

10. The bottle cap according to claim 9, wherein the inner diameter of the cap body (11) is smaller than the outer diameter of the screw tube (22), and the connecting portion (23) has a stopper surface (231) formed thereon facing the cap body (11).

11. The bottle cap according to claim 10, wherein the path from the open end of the cap body (11) to the stopper surface (231) is the movable path, and the length of the movable path is greater than or equal to the distance from the end of the inner tube (12) near the partition (24) to the activating projection (25).

12. The bottle cap according to claim 11, wherein the cap (11) is provided with a snap ring (13), the snap ring (13) being fitted over the cap (11) and connected to the outer sidewall of the cap (11) by a number of first breaking contacts (131).

13. The bottle cap according to claim 12, wherein the first breaking contacts (131) are arranged evenly in the circumferential direction of the catch ring (13).

14. The bottle cap according to claim 12, wherein the inner diameter of the snap ring (13) is not smaller than the outer diameter of the cap (11).

15. The bottle cap according to any one of claims 12 to 14, wherein the edge of the limiting surface (231) away from the connecting tube (21) is recessed towards the screwing tube (22) to form a step (232), a clamping groove (233) is formed on the side surface of the step (232), a clamping protrusion (132) is arranged on the inner side surface of the locking ring (13), and the clamping protrusion (132) is embedded in the clamping groove (233).

16. A bottle cap according to any one of claims 9 to 11, wherein the outer sidewall of the connecting cap (2) is provided with a first stopper protrusion (212), the inner sidewall of the cap body (11) is provided with a second stopper protrusion (112), and the first stopper protrusion (212) is located between the start point and the end point of the movable path of the second stopper protrusion (112).

17. The bottle cap according to claim 16, wherein the first stopper protrusion (212) is formed with a first slope surface (2121) and a first stopper surface (2122) in this order in a screwing direction of the cap body (11) with respect to the connecting tube (21), the first slope surface (2121) being inclined in a direction away from the connecting tube (21) toward the screwing direction of the cap body (11) with respect to the connecting tube (21), and the first stopper surface (2122) extending in a direction away from an axis of the connecting tube (21).

18. The bottle cap according to claim 17, wherein the first stopper surface (2122) is perpendicular to the outer side surface of the connecting tube (21).

19. The bottle cap according to claim 16, wherein the second stopper protrusion (112) is formed with a second inclined surface (1121) and a second stopper surface (1122) in this order in a screwing direction of the connecting tube (21) with respect to the cap body (11), the second inclined surface (1121) being inclined in a direction close to an axis of the cap body (11) toward the screwing direction of the connecting tube (21) with respect to the cap body (11), and the second stopper surface (1122) extending in a direction close to the axis of the cap body (11).

20. The bottle cap according to claim 19, wherein the second stopper face (1122) is perpendicular to the inner side of the cap body (11).

21. The bottle cap according to claim 9, wherein a sealing ring (234) is further formed on the connecting portion (23), the sealing ring (234) is located in the screwing tube (22) and is arranged opposite to the inner wall of the screwing tube (22), and the sealing ring (234) and the screwing tube (22) are matched to form a sealing groove (235) for embedding the bottle mouth.

22. The bottle cap according to claim 21, wherein the vertical distance from the outer wall of the inner tube (12) to the inner wall of the sealing ring (234) is not less than the thickness of the partition (24).

23. The bottle cap according to claim 21 or 22, wherein the sealing ring (234) and the cylindrical curved surface of the outer sidewall of the inner tube (12) cooperate to form a relief angle (236), the relief angle (236) being adapted to be entered by the diaphragm (24) when rotating around the thickening (26).

24. The bottle cap according to claim 1, wherein the holding cavity (121) is for holding powder or liquid or granules.

25. The bottle cap according to claim 9, further comprising a fracture connecting ring (3), wherein the fracture connecting ring (3) is disposed at one end of the screwing tube (22) far away from the connecting tube (21) and is used for being sleeved on a bottle mouth.

26. The bottle cap according to claim 25, characterized in that the break connecting ring (3) is connected to the end of the screw tube (22) remote from the connecting tube (21) by a number of second break contacts.

27. The bottle cap according to claim 1, wherein the end surface of the cap body (11) remote from the opening is provided with a rotation indication mark.

28. The bottle cap according to claim 7, wherein the outer sidewall of the connecting tube (21) is provided with a first thread (211), the inner sidewall of the cap body (11) is provided with a second thread (111), and the first thread (211) and the second thread (111) are engaged with each other.

29. The bottle cap according to claim 9, wherein a first anti-slip structure (221) is provided on an outer sidewall of the screw tube (22).

30. The bottle cap according to claim 29, wherein the first anti-slip structure (221) is a plurality of stripes;

or the first anti-skid structures (221) are a plurality of salient points;

or the first anti-skid structure (221) is a frosted surface.

31. The bottle cap of claim 29, wherein the plurality of stripes are distributed in a net shape;

or the stripes extend along the radial direction of the screwing pipe (22) and are arranged in the circumferential direction.

32. The bottle cap according to claim 7, wherein the outer side wall of the cap body (11) is provided with a second anti-slip structure (113).

33. The bottle cap according to claim 32, wherein the second anti-slip structure (113) is a plurality of stripes;

or the second anti-skid structures (113) are a plurality of salient points;

or the second anti-skid structure (113) is a frosted surface.

34. The bottle cap of claim 33, wherein the plurality of stripes are distributed in a net shape;

or the stripes extend along the radial direction of the cap body (11) and are arranged in the circumferential direction.

35. The bottle cap according to claim 7, wherein the partition (24) is a circular plate, and the inner tube (12) is coaxially disposed with the partition (24).

36. A container comprising a bottle body and the bottle cap of any one of claims 1 to 35 mounted thereon.