CN213009560U - Bottle and bottle assembly - Google Patents

Abstract

The utility model relates to a bottle field, in particular to bottle and bottle subassembly. The utility model discloses a bottle, include: the bottleneck portion, including the top surface, connect face and medial surface, the top surface is connected with the medial surface through connecting the face, and the top of connecting the face keeps away from the vertical central line of bottleneck portion for the bottom of connecting the face for when connecting the top of face and the bottleneck portion contact of inserting another bottle of bottleneck portion, the bottom of connecting the face does not contact with the bottleneck portion of inserting another bottle of bottleneck portion. Based on this, can prevent that the medial surface from taking place to collide with the damage, effectively reduce the bottle because of colliding with the risk that the damage and bad seal.

Description

Bottle and bottle assembly

Technical Field

The utility model relates to a bottle field, in particular to bottle and bottle subassembly.

Background

Bottles such as plastic bottles are generally formed from preforms by blow molding or injection molding. The bottle blanks are easy to collide with each other in the conveying and transporting processes, so that bottle mouth parts are damaged and scratched. Even, the mouth of one bottle may be inserted into the mouth of another bottle, causing the collision damage of the inner side surface inserted into the mouth of the bottle, affecting the product quality. In particular, in some bottles, the inner side surface of the mouth portion of the bottle is in sealing fit with the bottle cap, and at this time, if the inner side surface of the mouth portion is damaged by collision, the sealing effect is affected, and poor sealing is caused.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a technical problem that will solve is: the risk of poor sealing of the bottle due to collision damage is reduced.

In order to solve the above technical problem, the first aspect of the present invention provides a bottle, which includes:

the bottleneck portion, including the top surface, connect face and medial surface, the top surface is connected with the medial surface through connecting the face, and the top of connecting the face keeps away from the vertical central line of bottleneck portion for the bottom of connecting the face for when connecting the top of face and the bottleneck portion contact of inserting another bottle of bottleneck portion, the bottom of connecting the face does not contact with the bottleneck portion of inserting another bottle of bottleneck portion.

In some embodiments, the connecting surface includes a first connecting surface located at a top end of the connecting surface, the connecting surface is connected to the top surface through the first connecting surface, and the first connecting surface protrudes toward an inner side of the bottle mouth portion.

In some embodiments, the first connection surface is a curved surface.

In some embodiments, the connecting surface further includes a second connecting surface connected to the first connecting surface, the second connecting surface is located at a bottom end of the connecting surface, the connecting surface is connected to the inner side surface through the second connecting surface, the second connecting surface protrudes toward the inner side of the bottle mouth, and a bottom end of the second connecting surface is close to a vertical center line of the bottle mouth relative to a top end of the first connecting surface.

In some embodiments, the second connection surface is an arcuate surface.

In some embodiments, the connecting surface further comprises a concave surface connecting the first connecting surface and the second connecting surface, and the concave surface is recessed toward an outside of the bottle mouth portion.

In some embodiments, the concave surface includes a third connecting surface that connects the first connecting surface and the second connecting surface and is recessed toward the outside of the finish portion.

In some embodiments, the third connecting surface is an arcuate surface.

In some embodiments, the concave surface further comprises a transition surface connecting the third connecting surface and the first connecting surface and recessed outward of the finish portion.

In some embodiments, the transition surface is an arc surface, and a radius of curvature of the transition surface is different from a radius of curvature of the third connecting surface.

In some embodiments, the radius of curvature of the transition surface is less than the radius of curvature of the third connecting surface.

In some embodiments, the medial side extends vertically.

In some embodiments, the bottle is a plastic bottle.

The utility model discloses the second aspect still provides a bottle subassembly, and it includes the bottle lid, and the bottle lid includes the lid and sets up the stopper on the lid to, bottle subassembly still includes the utility model discloses a bottle, the outside of the bottleneck portion of bottle is located to the lid cover, and the stopper inserts in the bottleneck portion to with the sealed cooperation of the medial surface of bottleneck portion.

In some embodiments, the cap plug includes a plug body connected to the cap body and a protrusion disposed on the plug body and in sealing engagement with the inner side surface.

Because the connection face that adds between the top surface of bottleneck portion and medial surface, do not contact with the medial surface when can making the bottleneck portion of another bottle insert, consequently, can prevent that the medial surface from taking place the damage of colliding with, effectively reduce the bottle because of colliding with the damage risk of bad seal.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which is to be read in connection with the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of a bottle at a bottle mouth portion according to some embodiments of the present invention.

Fig. 2 is a schematic structural view of the bottle mouth part shown in fig. 1 at the connecting surface.

Fig. 3 is a schematic view showing a state where a mouth portion of the bottle shown in fig. 1 is inserted into a mouth portion of another bottle.

Fig. 4 is an enlarged view of part I of fig. 3.

Fig. 5 is a schematic view of the bottle mouth portion and the bottle cap shown in fig. 1.

In the figure:

100. a bottle assembly; 10. a bottle; 20. a bottle cap;

1. a finish portion; 11. a top surface; 12. a connecting surface; 13. an inner side surface; 14. an outer side surface; 15. a cover connecting portion; 16. an anti-theft ring; 17. a support ring; 121. a first connection face; 122. a concave surface; 123. a second connection face; 122a, a transition surface; 122b, a third connecting surface;

2. a cover body; 21. covering the top; 22. a lid side wall;

3. covering and plugging; 31. a plug body; 32. a protrusion;

4. a vertical centerline.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by the ordinary skilled person in the art without developing the creative work belong to the protection scope of the present invention.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

In the description of the present invention, it should be understood that the terms "first", "second", etc. are used to define the components, and are only used for the convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, should not be interpreted as limiting the scope of the present invention.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Fig. 1-5 schematically illustrate a bottle and bottle assembly of the present invention.

For ease of understanding, the structure of the bottle assembly will be described first.

Referring to fig. 5, in some embodiments, bottle assembly 100 includes bottle 10 and bottle cap 20.

The bottle 10 includes a body portion (not shown) and a finish portion 1. The bottle opening part 1 is arranged at the top end of the bottle body part, the interior of the bottle opening part is hollow, the top end of the bottle opening part is open, the interior and the exterior of the bottle body part are communicated, and the content can enter the bottle body part from the bottle opening part 1 to be stored. The bottle 10 may be specifically a plastic bottle.

The cap 20 is provided at the mouth portion 1 and seals the mouth portion 1 to prevent leakage of the contents of the bottle 10.

Referring to fig. 1 and 5, the bottle mouth portion 1 includes a bottle mouth body, and a cap connecting portion 15, an anti-theft ring 16, a support ring 17, and the like provided on the bottle mouth body.

The bottle mouth part body is constructed into a hollow revolving body structure, the top end of the bottle mouth part body is provided with a bottle mouth, and the bottle mouth part body is provided with a top surface 11, an inner side surface 13 and an outer side surface 14. The top surface 11 is an end surface of the bottle mouth part body far away from the bottle body part. The opening defined by the inner ring of the top surface 11 is the bottle mouth. The inner side 13 and the outer side 14 are inner wall surfaces and outer wall surfaces of the bottle mouth body, and are connected to the inner side and the outer side of the top surface 11.

The cap connecting portion 15, the antitheft ring 16 and the support ring 17 are all provided on the outer side face 14 and project toward the outside of the bottle mouth portion 1 with respect to the outer side face 14, that is, the outer diameters of the cap connecting portion 15, the antitheft ring 16 and the support ring 17 are larger than the diameter of the outer side face 14.

The cap connecting portion 15 is mainly used for connecting with the bottle cap 20, so as to realize the connection and fixation of the bottle 10 and the bottle cap 20. Accordingly, the bottle cap 20 is generally provided with a bottle coupling portion (not shown) to be engaged with the cap coupling portion 15. In some embodiments, the cap connection portion 15 is a continuous or intermittent thread or snap for one or more turns to effect a threaded connection or snap connection with the bottle cap 20. The cap connecting portion 15 and the mouth body may be integrally formed. Meanwhile, the cover connection portion 15 and the outer side surface 14 may be transited by a straight line or a curved line (e.g., an arc line).

The anti-theft ring 16 is mainly used to distinguish whether the bottle cap 20 has been opened or not to prevent theft. The anti-tamper ring 16 is attached to the closure 20 before the closure 20 is not opened. When the cap 20 is opened, at least a portion of the anti-tamper ring 16 is disengaged from the cap 20, thereby allowing the anti-tamper ring 16 to be disconnected from the cap 20 as an indicator to identify whether the cap 20 has been opened. Wherein the tamper ring 16 is located below the cap connecting portion 15 and protrudes toward the outside of the bottle mouth portion 1 with respect to the cap connecting portion 15, that is, the outer diameter of the tamper ring 16 is larger than the outer diameter of the cap connecting portion 15. In some embodiments, the anti-tamper ring 16 transitions with the outer side 14 via a straight line or a curved line (e.g., an arc).

The support ring 17 is mainly used for positioning and fixing the bottle blank during blow molding or injection molding on a mold. Which is provided below the cap connecting portion 15 and, in the case of a tamper ring 16, is located specifically below the tamper ring 16 and projects toward the outside of the bottle mouth portion 1 with respect to the tamper ring 16, i.e., the outer diameter of the support ring 17 is larger than the outer diameter of the tamper ring 16. In some embodiments, the support ring 17 transitions with the outer side 14 via a straight line or a curved line (e.g., an arc).

Referring to fig. 5, the bottle cap 20 includes a cap body 2 and a cap plug 3. The cap body 2 covers the outside of the bottle mouth portion 1. The cap plug 3 is provided on the cap body 2, is inserted into the bottle mouth portion 1, and is sealingly engaged with the inner surface 13 of the bottle mouth portion 1.

Specifically, with continued reference to fig. 5, the cover 2 includes a cover top 21 and cover sidewalls 22. The cap 21 is used to close the mouth of the bottle. The cover sidewall 22 is connected to the periphery of the cover top 21 and extends downward from the cover top 21. In some embodiments, as shown in fig. 5, the cover sidewall 22 extends downwardly below the anti-theft ring 16 and above the support ring 17. The bottle connecting portion mentioned above is provided on the inner surface of the cap sidewall 22, and is connected to the cap connecting portion 15, thereby fixedly connecting the cap body 2 to the bottle mouth portion 1.

The lid plug 3 includes a plug body 31 and a projection 32. The plug body 31 is connected to the lid body 2. The protrusion 32 is disposed on the plug body 31 and is in sealing engagement with the inner side surface 13. More specifically, the plug body 31 is provided on the cap top 21 and is located inside the cap side wall 22, and extends downward from the inner surface of the cap top 21. A receiving groove is formed between the plug body 31 and the cap sidewall 22 for insertion of the bottle mouth body. The projection 32 projects from the outer surface of the stopper body 31 toward the lid side wall 22 to abut against the inner side surface 13 after the spout body is inserted into the receiving groove, forming a sealing surface.

In the related art, the inner side surface 13 extends vertically, i.e., in a direction substantially parallel to the vertical center line 4 of the bottle mouth portion 1, and extends from the bottle body portion to the height of the top surface 11. Meanwhile, the entire inner side surface 13 is a smooth surface without depressions. In this case, referring to fig. 3 and 4, when the mouth portion 1 of another bottle 10 is inserted into the mouth portion 1 during the manufacturing process, the inserted mouth portion 1 is likely to directly contact with the portion of the inner surface 13 for contact sealing with the cap plug 3, and the portion of the inner surface 13 for contact sealing with the cap plug 3 is damaged by collision, which makes it difficult to form a tight seal when subsequently engaging with the bottle cap 20, thereby affecting the sealing effect and the quality of the bottle assembly 100.

In view of the above situation, referring to fig. 1-5, in some embodiments of the present invention, although the inner side surface 13 still extends vertically, the inner side surface 13 does not extend vertically to the top surface 11 any longer, but the connecting surface 12 is added between the inner side surface 13 and the top surface 11, so that the inner side surface 13 extends vertically to the height of the bottom end of the connecting surface 12 below the top surface 11.

As shown in fig. 2, the connecting surface 12 connects the top surface 11 and the inner side surface 13, and the top end of the connecting surface 12 is far away from the vertical center line 4 of the bottle mouth portion 1 relative to the bottom end of the connecting surface 12, so that when the top end of the connecting surface 12 contacts the bottle mouth portion 1 of another bottle 10 inserted into the bottle mouth portion 1, the bottom end of the connecting surface 12 does not contact the bottle mouth portion 1 of another bottle 10 inserted into the bottle mouth portion 1.

Referring to fig. 2, the connecting surface 12 is provided with a top end connected to the top surface 11 and a bottom end connected to the inner side surface 13. Because the top end of the connecting surface 12 is far away from the vertical central line 4 of the bottle mouth part 1 relative to the bottom end of the connecting surface 12, the top surface 11 and the inner side surface 13 are not on the same height plane and are not on the same horizontal plane, but a height difference exists between the top surface 11 and the inner side surface 13, the top end of the inner side surface 13 is located at a certain distance below the top surface 11, and the inner diameter of the top surface 11 is larger than the diameter of the inner side surface 13.

Based on above-mentioned setting, refer to fig. 3 and fig. 4, when mouth of a bottle portion 1 is inserted by another mouth of a bottle portion 1, the top of connecting face 3 can support and block male mouth of a bottle portion 1, make male mouth of a bottle portion 1 can not contact with the bottom of connecting face 3, thereby make and be located medial surface 13 of connecting the face 3 bottom below also can not contact with male mouth of a bottle portion 1, and then can prevent medial surface 13, especially medial surface 13 be used for taking place to collide with the damage with the sealed part of lid stopper 3 contact, in order to influence sealed effect because of colliding with the damage, effectively improve the product quality.

Referring to fig. 2, in some embodiments, the connecting surface 12 includes a first connecting surface 121, the first connecting surface 121 is located at the top end of the connecting surface 12, the connecting surface 12 is connected to the top surface 11 through the first connecting surface 121, and the first connecting surface 121 protrudes toward the inner side of the bottle mouth portion 1. Wherein, the first connection surface 121 and the top surface 11 may be transited by a rounded corner.

Referring to fig. 4, the first connecting surface 121 protruding toward the inside of the mouth portion 1 is provided to contact the inserted mouth portion 1 when the mouth portion 1 of another bottle 10 is inserted, thereby supporting and blocking the inserted mouth portion 1 and preventing the inserted mouth portion 1 from colliding and damaging the inner surface 13.

The first connection surface 121 may be an arc surface or include two planes connected at an angle. When the first connection surface 121 is an arc surface, referring to fig. 4, the first connection surface 121 can be more sufficiently contacted with the inserted bottle mouth portion 1 when the bottle mouth portion 1 of another bottle 10 is inserted, so that the inserted bottle mouth portion 1 can be more reliably supported and blocked, and the inner side surface 13 can be more reliably prevented from being damaged by the collision of the inserted bottle mouth portion 1. Further, the first connecting surface 121 is provided so as not to easily cause a scratch or a scratch to the inserted bottle mouth portion 1 when contacting the inserted bottle mouth portion 1, and therefore, it is also advantageous to ensure the quality of the inserted bottle mouth portion 1. Meanwhile, the first connecting surface 121 is a cambered surface, so that the processing is more convenient, and the demoulding risk is reduced.

Also, with continued reference to fig. 2, in some embodiments, the connecting surface 12 further includes a second connecting surface 123 connected to the first connecting surface 121, the second connecting surface 123 is located at the bottom end of the connecting surface 12, the connecting surface 12 is connected to the inner side surface 13 through the second connecting surface 123, the second connecting surface 123 protrudes toward the inner side of the bottle mouth portion 1, and the bottom end of the second connecting surface 123 is close to the vertical centerline of the bottle mouth portion 1 relative to the top end of the first connecting surface 121. The second connection surface 123 and the inner side surface 13 may be rounded.

Referring to fig. 4, when the mouth portion 1 of another bottle 10 is inserted, the second connection surface 123 is located below the portion of the inserted mouth portion 1 contacting the first connection surface 121, and has a space with the inserted mouth portion 1, that is, the second connection surface 123 does not contact the inserted mouth portion 1, so that the inserted mouth portion 1 can be effectively prevented from colliding and damaging the inner side surface 13 located below the second connection surface 123.

The second connecting surface 123 may be an arc surface, or include two planes connected at an angle. When the second connecting surface 123 is an arc surface, the processing is convenient, and when the bottle 10 is assembled with the bottle cap 20, the second connecting surface 123 can play a good guiding role for the bottle cap 20, so that the cap plug 3 can smoothly reach the inner side surface 13 in the insertion process and be in sealing contact with the inner side surface 13. Meanwhile, when the second connecting surface 123 is an arc surface, the second connecting surface 123 is smooth, which is also beneficial to avoiding scratching the cover plug 3.

Referring to fig. 2, in some embodiments, the connecting surface 12 further comprises a concave surface 122, the concave surface 122 connects the first connecting surface 121 and the second connecting surface 123, and the concave surface 122 is recessed toward the outside of the bottle mouth portion 1.

Through set up outer concave surface 122 between protruding first connection face 121 and the second connection face 123 in inside, make connection face 12 have about both ends swell and the sunken structural feature in middle part, this one side can make connection face 12 only in first connection face 121 department with the contact of male bottleneck portion 1, and do not all contact with male bottleneck portion 1 in concave surface 122 department and second connection face 123 department, reduce the damage of colliding with of inserted bottleneck portion 1 to concave surface 122 and second connection face 123, on the other hand can also be at the in-process on bottle lid 20 is installed to bottle 10, utilize concave surface 122 to further dodge to lid stopper 3, not only be convenient for realize the smooth of lid stopper 3 and insert, still be convenient for reduce the damage of connection face 12 to lid stopper 3.

Referring to fig. 2, in some embodiments, the concave surface 122 includes a third connecting surface 122b, and the third connecting surface 122b connects the first connecting surface 121 and the second connecting surface 123 and is recessed toward the outside of the bottle mouth portion 1.

The third connecting surface 122b may be an arc surface, or include two planes connected at an angle. When the third connecting surface 122b is an arc surface, the third connecting surface 122b is more convenient to process, and the third connecting surface 122b can conveniently guide the plug 3 to be smoothly inserted. When the cap plug 3 is inserted, the cap plug 3 can contact the third connection surface 122b and smoothly reach the second connection surface 123 and the inner side surface 13 under the guidance of the third connection surface 122 b.

When the third connecting surface 122b is an arc surface, the third connecting surface 122b and the second connecting surface 123 may be tangent.

Also, with continued reference to fig. 2, in some embodiments, the concave surface 122 further includes a transition surface 122a, and the transition surface 122a connects the third connection surface 122b and the first connection surface 121 and is recessed toward the outside of the bottle mouth portion 1. At this time, the third connection surface 122b is connected to the first connection surface 121 through the transition surface 122 a.

The transition surface 122a may be a plane or a curved surface. For example, referring to fig. 2, in some embodiments, the transition surface 122a is a cambered surface, and the radius of curvature of the transition surface 122a is different from the radius of curvature of the third connecting surface 122 b. Specifically, the radius of curvature of the transition surface 122a is smaller than the radius of curvature of the third connection surface 122 b.

Set up transition face 122a to the cambered surface, its benefit lies in, on the one hand the processing of being convenient for, and on the other hand can realize the smooth transition between first connecting face 121 and the third connecting face 122b, is favorable to preventing to be scratched when the lid stopper 3 inserts, also is favorable to avoiding simultaneously because of transition face 122a and the third connecting face 122b between more sharp-pointed edges and corners jam post lid stopper 3.

It can be seen that, based on the first connecting surface 121, the concave surface 122 and the second connecting surface 123, the connecting surface 12 not only can effectively prevent the bottle mouth portion 1 from being knocked and damaged in the processing and manufacturing process, but also can guide the cap plug 3 to be inserted smoothly, which is beneficial to realizing efficient assembly between the bottle cap 20 and the bottle 10 and tight sealing between the bottle cap 20 and the bottle 10.

The effect of the connecting surface 12 is further explained in connection with fig. 3-5 in order to more clearly demonstrate the effect.

Fig. 3 to 4 show a state where one mouth part 1 is vertically inserted into another mouth part 1. In actual production, during the process of conveying bottles or bottle blanks, one bottle mouth part 1 is inserted into another bottle mouth part 1 in a more inclined way, and the bottle mouth part 1 can be inserted in a less vertical way. In fact, one bottle mouth part 1 is vertically inserted into the other bottle mouth part 1, which is an extreme state and can show the worst condition when two bottle mouth parts 1 collide with each other.

As shown in fig. 3-4, when one bottleneck portion 1 is vertically inserted into another bottleneck portion 1, the first connecting surface 121 of the inserted bottleneck portion 1 (or called first bottleneck portion) contacts with the maximum outer diameter of the inserted bottleneck portion 1 (or called second bottleneck portion), the second connecting surface 123 of the inserted bottleneck portion 1 is located below the maximum outer diameter of the inserted bottleneck portion 1, at this time, the second connecting surface 123 and the inner side surface 13 located below the second connecting surface 123 do not contact with the maximum outer diameter of the inserted bottleneck portion 1, wherein when the first connecting surface 121 contacts with the inserted bottleneck portion 1, the inserted bottleneck portion 1 is blocked, so as to prevent the inserted bottleneck portion 1 from moving downwards, so that the maximum outer diameter portion of the inserted bottleneck portion 1 moves downwards to the position contacting with the second connecting surface 123 or the inner side surface 13, so as to prevent the inserted bottleneck portion 1 from colliding with the second connecting surface 123 or the inner side surface 13, so as to prevent the second connecting surface 123 and the inner surface 13 from being damaged by the impact of the insertion into the bottle mouth portion 1.

As shown in fig. 5, when assembled with the bottle cap 20, the sealing surface is located below the top end of the inner side surface 13, and when the second connecting surface 123 and the inner side surface 13 are not damaged by collision, the cap plug 3 can be tightly sealed with the inner side surface 13 after being inserted, thereby achieving a good sealing effect.

The above description is only exemplary embodiments of the present invention, and should not be construed as limiting the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (15)

1. A bottle (10), characterized in that it comprises:

bottleneck portion (1), including top surface (11), connection face (12) and medial surface (13), top surface (11) passes through connect face (12) with medial surface (13) are connected, just the top of connecting face (12) for the bottom of connecting face (12) is kept away from vertical central line (4) of bottleneck portion (1), make connect the top of face (12) with insert during bottleneck portion (1) the contact of another bottle (10) of bottleneck portion (1), connect the bottom of face (12) with insert bottleneck portion (1) the contactless of another bottle (10) of bottleneck portion (1).

2. Bottle (10) according to claim 1, wherein the connection face (12) comprises a first connection face (121), the first connection face (121) being located at a top end of the connection face (12), the connection face (12) being connected with the top face (11) by the first connection face (121), and the first connection face (121) protruding towards the inside of the bottle mouth portion (1).

3. Bottle (10) according to claim 2, characterized in that said first connection face (121) is an arc face.

4. Bottle (10) according to claim 2, wherein the connection face (12) further comprises a second connection face (123) connected to the first connection face (121), the second connection face (123) being located at a bottom end of the connection face (12), the connection face (12) being connected to the inner side face (13) by the second connection face (123), the second connection face (123) protruding towards the inside of the finish portion (1), and a bottom end of the second connection face (123) being located close to the vertical centerline (4) of the finish portion (1) with respect to a top end of the first connection face (121).

5. Bottle (10) according to claim 4, characterized in that said second connection face (123) is an arc face.

6. Bottle (10) according to claim 4, wherein the connection face (12) further comprises a concave face (122), the concave face (122) connecting the first connection face (121) and the second connection face (123), and the concave face (122) being recessed towards the outside of the finish portion (1).

7. Bottle (10) according to claim 6, characterized in that said concave face (122) comprises a third connection face (122b), said third connection face (122b) connecting said first connection face (121) and said second connection face (123) and being recessed towards the outside of said finish portion (1).

8. Bottle (10) according to claim 7, characterized in that said third connection face (122b) is an arc face.

9. Bottle (10) according to claim 7, wherein the concave surface (122) further comprises a transition surface (122a), the transition surface (122a) connecting the third connection surface (122b) with the first connection surface (121) and being recessed towards the outside of the finish portion (1).

10. Bottle (10) according to claim 9, characterized in that said transition surface (122a) is an arc surface and the radius of curvature of said transition surface (122a) is different from the radius of curvature of said third connection surface (122 b).

11. Bottle (10) according to claim 10, characterized in that the transition face (122a) has a radius of curvature smaller than the radius of curvature of the third connecting face (122 b).

12. Bottle (10) according to claim 1, characterized in that said inner side (13) extends vertically.

13. Bottle (10) according to claim 1, characterized in that said bottle (10) is a plastic bottle.

14. A bottle assembly (100) comprising a bottle cap (20), said bottle cap (20) comprising a cap body (2) and a cap stopper (3) disposed on said cap body (2), characterized in that said bottle assembly (100) further comprises a bottle (10) according to any one of claims 1 to 13, said cap body (2) covering the exterior of the finish portion (1) of said bottle (10), said cap stopper (3) being inserted into said finish portion (1) and sealingly engaging the interior side (13) of said finish portion (1).

15. The bottle assembly (100) of claim 14 wherein the closure (3) comprises a closure body (31) and a protrusion (32), the closure body (31) being connected to the cap (2), the protrusion (32) being disposed on the closure body (31) and sealingly engaging the inner side (13).

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