Applicator and packaging container including this applicator

Abstract

This application relates to an applicator and a packaging container comprising said applicator, said applicator comprising an inner cap (20), a fixing ring (30) and an application head (50), said inner cap comprising an outer ring (21) and an inner ring (22) fixedly connected, said outer ring being located outside said inner ring, said application head being fixedly connected to said inner ring, said fixing ring (30) being fixedly mounted on said inner ring (22), and said fixing ring being embedded in said application head (50).In this applicator, the application head is located inside the inner cap; when not in use, the application head does not come into contact with the product body in the outer bottle, thus saving storage space for the product body and preventing contamination of the product body. (Figure for abbreviation: Fig.1).

Description

Title of the invention: Applicator and packaging container comprising this applicator. Technical field of the invention

[0001] The present application relates to cosmetic product packaging technology, and specifically relates to an applicator and a packaging container including said applicator. Previous technique

[0002] Certain cosmetic products, such as lip glosses, lip shines, liquid blush, etc., require the use of an applicator. The applicator comprises a bottle body and an applicator head. During use, the applicator head carries an appropriate amount of product and applies it to the application area to complete the makeup application. Because the applicator head has a large surface area and is always inserted into the product inside the bottle body, it often carries an excessive amount of product. After use, the excess product is reinserted into the bottle body along with the applicator head, thus causing contamination of the product inside the bottle body. Description of the invention

[0003] To overcome the aforementioned drawbacks, the present application provides an applicator in which the application head is located inside the inner cap. When not in use, the application head does not come into contact with the substance body in the outer bottle, thus saving storage space for the substance body and preventing contamination of the substance body.

[0004] The technical solution adopted by the present application to resolve its technical problem is as follows.

[0005] The invention provides an applicator, comprising an inner hood, a fixing ring and an application head, said inner hood comprising an outer ring and an inner ring fixedly connected, said application head being fixedly connected to said inner ring, said fixing ring being fixedly mounted on the outside of said inner ring, said inner ring having a closed end wall, said fixing ring and said end wall together delimiting the mounting space of said application head.

[0006] Optionally, said inner ring comprises a first outer side wall and a second outer side wall, said second outer side wall being recessed radially inwards relative to said first external side wall along the radial direction of said inner ring, said fixing ring being mounted on said second external side wall.

[0007] Optionally, the end wall of said inner ring is provided with a first locking lug, said end wall is provided with a connecting rod extending in the axial direction, said application head is provided axially with a mounting groove, said connecting rod is inserted in a fixed manner into said mounting groove, said first locking lug is embedded in said application head.

[0008] Optionally, a first end of said fixing ring is fixedly mounted on said inner ring, a second end of said fixing ring extends radially inwards to form an annular clamping plate, said clamping plate extends in the axial direction of said fixing ring to form a second locking lug.

[0009] Optionally, said application head includes a mounting part, an application part and a locking groove, the outer wall of said mounting part is recessed radially inwards to form said locking groove, said clamping plate engages in said locking groove, said second locking lug is embedded in said mounting part, said mounting part is fixed in said mounting space.

[0010] Optionally, said application part has at least one flat application surface, the minimum outside diameter of said application part is greater than or equal to the outside diameter of said mounting part.

[0011] Optionally, said application head is made of porous material; and / or, said application head is provided with flocking.

[0012] The present application also provides a packaging container, comprising an applicator, an inner stopper and an outer bottle, said inner stopper being fixedly installed in said outer bottle, said applicator being removably assembled on said outer bottle, when said applicator is installed on said outer bottle, said application head is located in said inner stopper, said inner stopper and said inner ring are assembled with a clamping force, said fixing ring is located between said inner ring and said inner stopper, said inner stopper is located inside said outer ring, said inner stopper is provided with a feed orifice, said outer bottle is provided with a steel ball.

[0013] Optionally, said feed orifice includes a first feed orifice, said internal plug has a base plate, said base plate is provided with at least one said first feed orifice; and / or, said orifice the supply includes at least one second supply port, said second supply port being disposed on the peripheral wall of said internal plug.

[0014] Optionally, said outer bottle includes a bottle body and a bottle shoulder fixedly installed on said bottle body, the material of said inner stopper comprises a first material, the material of said bottle shoulder comprises a second material, the hardness of said first material is less than the hardness of said second material.

[0015] The beneficial effects of the present application are: the application head of the present application is located inside the inner cap; when not in use, the application head does not come into contact with the substance in the outer bottle, thus saving storage space for the substance and preventing contamination of the substance; during use, the substance is absorbed by the application head through the feed orifice on the inner cap, so the application head can carry an appropriate amount of substance, facilitating use by the user, without causing waste of the substance, improving the efficiency of use of the substance;In the present application, the fixing ring is mounted on the inner cover, and the fixing ring and the inner cover cooperate to fix the application head, improving the bond strength between the application head and the inner cover, preventing the application head from detaching; during assembly, the fixing ring is first installed on the application head, then the inner cover is fitted into the application head, thus the assembly method is simple and quick. Brief description of the figures

[0016] Fig. 1 is a cross-sectional view of the packaging container of the present application;

[0017] [Fig.2] is an enlarged view of area A of [Fig.1];

[0018] Figure 3 is a perspective view of the packaging container of the present request ;

[0019] Fig. 4 is a first exploded view of the packaging container of the present application;

[0020] Fig. 5 is a second exploded view of the packaging container of the present application;

[0021] Fig. 6 is a first structural diagram of the inner hood of the present application;

[0022] Fig. 7 is a second structural diagram of the inner hood of the present application;

[0023] Fig. 8 is a third structural diagram of the inner hood of the present application;

[0024] Fig. 9 is a fourth structural diagram of the inner hood of the present application;

[0025] The [Fig. 10] is a fifth structural diagram of the inner hood of the present application;

[0026] The [Fig. 11] is a sixth structural diagram of the inner hood of the present application;

[0027] The [Fig. 12] is a first structural diagram of the fixing ring of the present application;

[0028] The [Fig. 13] is a second structural diagram of the fixing ring of the present application;

[0029] The [Fig. 14] is a third structural diagram of the fixing ring of the present application;

[0030] The [Fig. 15] is a fourth structural diagram of the fixing ring of the present application;

[0031] The [Fig. 16] is a fifth structural diagram of the fixing ring of the present application;

[0032] The [Fig. 17] is a sixth structural diagram of the fixing ring of the present application;

[0033] Fig. 18 is a first structural diagram of the internal plug of the present application;

[0034] The [Fig. 19] is a second structural diagram of the internal plug of the present application;

[0035] The [Fig.20] is a third structural diagram of the internal plug of the present application;

[0036] The [Fig.21] is a fourth structural diagram of the internal plug of the present application;

[0037] The [Fig.22] is a fifth structural diagram of the internal plug of the present application;

[0038] The [Fig.23] is a sixth structural diagram of the internal plug of the present application;

[0039] The [Fig.24] is a seventh structural diagram of the internal plug of the present application;

[0040] Fig. 25 is a structural diagram of the application head of the present application;

[0041] Reference signs: 10-outer cover, 20-inner cover, 21-crown outer, 22-inner crown, 23-connecting rod, 24-first lug locking, 25-internal thread, 26-first external side wall, 27-second External side wall, 30 - fixing ring, 31 - clamping plate, 32 - second locking lug, 40 - internal plug, 41 - projecting rim, 42 - base plate, 43- first feed port,44-second feed port,45-projection,50-application head,51-mounting groove,52-locking groove,53-mounting part,54-application part,60-outer bottle,61-bottle body,62-bottle shoulder,63-external thread,64-steel ball,65-groove. Description of the implementation methods

[0042] The technical solutions of the embodiments of this application will be clearly and fully described below in conjunction with the embodiments of this application. Obviously, the embodiments described in this application represent only a part of the embodiments of this application, and not all of them. Based on the embodiments of this application, all other embodiments obtained by ordinary persons in the technical field without creative effort fall within the scope of protection of this application.

[0043] It should be noted that the terms “first,” “second,” etc., in the description and claims of this application and in the drawings below are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the objects thus used may be interchanged under appropriate circumstances, so that the embodiments of this application described herein may be implemented in an order other than those illustrated or described herein.Furthermore, the terms "include" and "have" and all their variations are intended to cover a non-exclusive inclusion; for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those clearly enumerated steps or units, but may include other steps or units not clearly enumerated or inherent in those processes, methods, products or devices.

[0044] To facilitate description, spatial relative terms may be used here, such as "on...", "above...", "on the upper surface of...", "above", etc., to describe the spatial position relationship of a device or feature with other devices or features as illustrated in the figures. It should be understood that the spatial relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, devices described as being "above other devices or structures" or "on other devices or structures" will then be positioned "below other devices or structures" or "under other devices or structures". Thus, the exemplary term "above..." can include both orientations. "Above..." and "below...". The device can also be oriented differently (rotated 90 degrees or in other orientations) and the relative spatial descriptions used here are interpreted accordingly.

[0045] Embodiments: as illustrated in Figures 1-25, an applicator, comprising an inner cover 20, a fixing ring 30 and an application head 50, said inner cover 20 comprising an outer ring 21 and an inner ring 22 connected in a fixed manner, said application head 50 being connected in a fixed manner to said inner ring 22, said fixing ring 30 being mounted in a fixed manner on the outside of said inner ring 22, said inner ring 22 having a closed end wall, said fixing ring 30 and said end wall together delimiting the mounting space of said application head.

[0046] The present applicator is used in a packaging container, said packaging container also comprising an inner cap 40 and an outer bottle 60, during use said inner cap 40 is fixed in said outer bottle 60, the applicator is inserted into said outer bottle 60, said application head 50 is located inside said inner cap 40, said outer bottle 60 contains a body of material, the body of material flows into said application head 50 through the feed orifice of said inner cap 40, said application head 50 is used for makeup.Since said application head 50 of the present application is located inside said inner cap 40, when not in use, said application head 50 does not come into contact with the body of material in said outer bottle 60, thus saving storage space for the body of material and preventing contamination of the body of material.

[0047] In the present application, said fixing ring 30 is mounted on said inner ring 22 of said inner cover 20, that is to say that said fixing ring 30 is located outside of said inner ring 22, and said fixing ring 30 and said inner cover 20 cooperate together to fix said application head 50, improving the bond strength between said application head 50 and said inner cover 20, preventing detachment of said application head 50;During assembly, said fixing ring 30 is first installed on said application head 50, then said inner cover 20 is fitted from above into said application head 50, i.e. said inner cover 20 and said fixing ring 30 form a two-piece structure, said application head 50 connects to said inner ring 22 from the outside of said inner ring 22, facilitating the installation of the applicator from bottom to top, therefore the assembly method is simpler and faster.

[0048] As illustrated in Figures 6-11, said inner ring 22 comprises a first outer side wall 26 and a second outer side wall 27, said second external side wall 27 is set back radially inwards relative to said first external side wall 26 along the radial direction of said inner ring 22, said fixing ring 30 being mounted on said second external side wall 27. That is to say, a step is formed between said first external side wall 26 and said second external side wall 27, when said fixing ring 30 is mounted on said second external side wall 27, the outer wall of said fixing ring 30 does not protrude from said first external side wall 26, said outer ring 21 has a tubular structure open at the top and bottom, said inner ring 22 has a tubular structure open at the top end and closed at the bottom end, and there is a space between said outer ring 21 and said inner ring 22, said fixing ring 30 is inserted into said space.Optionally, said fixing ring 30 and said inner ring 22 are fixed by snap-fitting using projections and grooves. Said second outer side wall 27 is provided with grooves and / or projections, the inner wall of said fixing ring 30 is provided with projections and / or grooves; during assembly, the projections snap into the grooves to fix said fixing ring 30 onto said second outer side wall 27. Or, said second outer side wall 27 is provided with threads, said fixing ring 30 is screwed onto said second outer side wall.

[0049] As illustrated in Figures 6 and 9, the upper end of said inner ring 22 is an open end, and the upper end of said inner ring 22 is fixedly connected to the inner wall of said outer ring 21, the lower end of said inner ring 22 is closed by an end wall, the end wall of said inner ring 22 is provided with a first locking lug 24, said end wall is provided with a connecting rod 23 extending in the axial direction, the end wall of said inner ring 22 is fixedly connected to said second outer side wall 27 of said inner ring 22, as illustrated in Figures 2 and 25, said application head 50 is axially provided with a mounting groove 51, said connecting rod 23 is fixedly inserted into said mounting groove 51,The first locking lug 24 is embedded in the application head 50. The connecting rod 23 and the first locking lug 24 extend downwards along the end wall of the inner ring 22. Optionally, the end wall of the inner ring 22 is provided with several first locking lugs 24 arranged circumferentially, the distance between two adjacent first locking lugs 24 being equal.

[0050] As illustrated in Figures 2 and 12-17, a first end of said fixing ring 30 is fixedly mounted on said inner ring 22, in the In this embodiment, the first end of said fixing ring 30 is fixedly connected by snap-fit ​​to said second external side wall 27, a second end of said fixing ring 30 extends radially inwards to form an annular clamping plate 31, said clamping plate 31 extends in the axial direction of said fixing ring 30 to form a second locking lug 32.

[0051] As illustrated in Figures 2 and 25, said application head 50 comprises a mounting part 53, an application part 54 and a locking groove 52, the outer wall of said mounting part 53 is recessed radially inwards to form said locking groove 52, said clamping plate 31 engages in said locking groove 52, said second locking lug 32 is embedded in said mounting part 53, said mounting part 53 is fixed in said mounting space.

[0052] Said second locking lug 32 extends inwards towards said retaining ring 30. Optionally, said clamping plate 31 is circumferentially provided with several second locking lugs 32, the distance between two adjacent second locking lugs 32 being equal. The present embodiment uses said inner cover 20 and said clamping plate 31 of said retaining ring 30 to fix said application head 50, uses said first locking lug 24 and said second locking lug 32 embedded in said application head 50, improving the installation strength of said application head 50, effectively preventing detachment of said application head 50.During assembly, said application head 50 is first installed on said fixing ring 30, then said inner cover 20 is inserted from above into said application head 50 and pressed downwards, so that said first locking lug 24 and said second locking lug 32 fit into said mounting part 53 of said application head 50.

[0053] As illustrated in Figures 1-5, said application portion 54 has at least one flat application surface, and the minimum outside diameter of said application portion 54 is greater than or equal to the outside diameter of said mounting portion 53. Optionally, the upper face of said application head 50 is non-arched, i.e., the upper face of said application head 50 is flat, to increase the application surface of said application head 50. The flat application surface of said application portion 54 and the outer wall of said application portion 54 form two upper angles. By using the flat application surface and the sides of the application portion, it is possible to apply to large skin areas, while the upper angles of said application portion 54 can be used for precise retouching of small skin areas.

[0054] Optionally, said application head 50 is made of a porous material; and / or, said application head 50 is provided with flocking. In one possible embodiment, said application head 50 is made of a porous material, said application head 50 directly absorbs the material in said outer bottle 60, the material being a paste, a liquid, a powder, etc.; in another possible embodiment, said application head 50 is made of a flexible material, the surface of said application head 50 forms a flocking layer, the flocking is used to absorb the material; in yet another possible embodiment, said application head 50 is made of a porous material, and the surface of said application head 50 forms a flocking layer, said application head 50 or the flocking is used to absorb the material.

[0055] As illustrated in Figures 1-5, the applicator also includes an outer hood 10, the inner hood 20 being fixedly installed inside the outer hood 10. The outer hood 10 and the inner hood 20 can be bonded together with adhesive, secured by snap-fit ​​to form a hood assembly. The hood assembly can also be a single molded part. As illustrated in Figures 5 and 25, the application head 50 has a non-spherical structure.

[0056] As illustrated in Figures 1-5, a packaging container, comprising an applicator, an inner cap 40 and an outer bottle 60, said inner cap 40 is fixedly installed in said outer bottle 60, the applicator is removably assembled on said outer bottle 60, when the applicator is installed on said outer bottle 60, said application head 50 is located in said inner cap 40, said inner cap 40 and said inner ring 22 are assembled with a clamping force, said fixing ring 30 is located between said inner ring 22 and said inner cap 40, said inner cap 40 is located inside said outer ring 21, said inner cap 40 is provided with a feed orifice, said outer bottle 60 is provided with a steel ball 64.The inner cap 40 is inserted into the space between the outer ring 21 and the inner ring 22, the inner cap 40 is mounted on the first outer side wall 26, and the inner wall of the inner cap 40 fits tightly with the first outer side wall 26. Since the inner cap 20 and the retaining ring 30 form a two-piece structure, the contact surface between the outer wall of the inner ring 22 and the inner wall of the inner cap 40 is reduced, thus reducing friction between the two, facilitating the insertion and removal of the applicator.

[0057] During use, the material is absorbed by said application head 50 through the feed orifice on said internal plug 40, thus said application head 50 can carry an appropriate quantity of material, facilitating the use by the user, without causing waste of material, improving the efficiency of material use.

[0058] The outer bottle contains the material, the inner stopper 40 is placed in the outer bottle 60, and the application head 50 is placed in the inner stopper 40, i.e., the inner stopper 40 isolates the application head 50 from the material in the outer bottle 60, effectively preventing contamination of the material by the application head. Optionally, the inner cap 20 is screwed onto the outer bottle 60.

[0059] As illustrated in figures 18-24, the feed orifice comprises a first feed orifice 43, said internal plug 40 has a base plate 42, said base plate 42 is provided with at least one said first feed orifice 43; in the present embodiment, the number of first feed orifices 43 is greater than two, the distance between two adjacent first feed orifices 43 is equal.

[0060] The feed opening also includes at least one second feed opening 44, said second feed opening 44 being disposed on the peripheral wall of said inner cap 40. The distance between two adjacent second feed openings 44 is equal. Before use, the packaging container is shaken, and the material enters said inner cap 40 through said first feed opening 43 and / or said second feed opening 44 to be absorbed by said application head 50 or to adhere to the surface of said application head 50. Thus, the quantity carried by said application head 50 can be effectively controlled, facilitating the user's makeup application and reducing material waste. Of course, in other embodiments, the feed opening may include only said first feed opening 43; or, alternatively, the feed opening may include only said second feed opening 44.

[0061] As illustrated in Figures 2, [Fig.5] and [Fig.6], the inner wall of said outer ring 21 is provided with an internal thread 25, the outer wall of said shoulder of the bottle 62 is provided with an external thread 63, said inner cap 20 and said shoulder of the bottle 62 are fixed by screwing by means of said internal thread 25 and said external thread 63. In other possible embodiments, said inner cap 20 and said shoulder of the bottle 62 may be fixed by snap-fitting or magnetic fastening.

[0062] As illustrated in Figures 2 and 18, a first end of said inner stopper 40 extends radially outwards to form an annular projecting rim 41, a second end of said inner stopper 40 is provided with a base plate 42, said inner stopper 40 is installed with a clamping force inside said shoulder of the bottle 62, and said projecting rim 41 is placed on said shoulder of the bottle 62. Said shoulder of bottle 62 is located inside said outer ring 21, said shoulder of bottle 62 is screwed with said outer ring 21, said inner stopper 40 is located inside said shoulder of bottle 62, and said inner stopper 40 fits tightly with said shoulder of bottle 62, said inner ring 22 is located inside said inner stopper 40, said inner ring 22 and said inner stopper 40 are assembled with compression, said fixing ring 30 is fixed by snap-fitting onto said inner ring 22, and said fixing ring 30 is located between said inner stopper 40 and said inner ring 22.

[0063] As illustrated in Figures 2, [Fig.4] and [Fig.22], the outer wall of said inner stopper 40 extends radially outwards to form an annular projection 45, the inner wall of said shoulder of the bottle 62 has a circumferential groove 65, said projection 45 fits into said groove 65. Said projection 45 fits tightly into said groove 65, improving the bond strength and sealing between said inner stopper 40 and said shoulder of the bottle 62.

[0064] As illustrated in figures 1 and 4, said outer bottle 60 comprises a bottle body 61 and a bottle shoulder 62 fixedly installed on said bottle body 61, the material of said inner stopper 40 comprises a first material, the material of said bottle shoulder 62 comprises a second material, the hardness of said first material is less than the hardness of said second material.

[0065] Said inner cap 20 is removably attached to said shoulder of the bottle 62, said bottle body 61 contains a steel ball 64. Optionally, said bottle body 61 and said shoulder of the bottle 62 form a single molded structure; or alternatively, said bottle body 61 and said shoulder of the bottle 62 form a separate structure. Said bottle body 61 serves to store the substance, said steel ball 64 serves to mix the substance when said bottle body 61 is shaken, allowing for uniform mixing of the substance and preventing stratification of the substance.

[0066] In the present application, said inner stopper 40 and said bottle shoulder 62 form a separate structure, and the hardness of said bottle shoulder 62 is greater than the hardness of said inner stopper 40, using said high-hardness bottle shoulder 62 to bond with said inner cap 20, using said elastic inner stopper 40 installed between said bottle shoulder 62 and said inner cap 20, satisfying both the bond strength between said bottle shoulder 62 and said inner cap 20, and being able to satisfy the sealing requirements of said outer bottle 60, extending the shelf life of the body of material, whereas if the inner stopper and the bottle shoulder were designed as a single piece of the same material, when using a harder material, the strength requirements of the bottle shoulder would be met, but the sealing of the outer bottle would not This could not be taken into account; similarly, when using an elastic material, the sealing of the outer bottle would be satisfied, but the strength requirements of the bottle shoulder could not be taken into account.

[0067] It should be noted that, for ordinary people in the technical field, several modifications and improvements can still be made without departing from the design of this application; these all fall within the scope of protection of this application. Therefore, the scope of protection of the patent in this application must be defined by the appended claims.

Claims

Demands

1. Applicator, characterized in that it comprises an inner cover (20), a fixing ring (30) and an application head (50), said inner cover (20) comprising an outer ring (21) and an inner ring (22) fixedly connected, said application head (50) being fixedly connected to said inner ring (22), said fixing ring (30) being fixedly mounted on the outside of said inner ring (22), said inner ring (22) having a closed end wall, said fixing ring (30) and said end wall together defining a mounting space for said application head (50).

2. Applicator according to claim 1, characterized in that said inner ring (22) comprises a first outer side wall (26) and a second outer side wall (27), said second outer side wall (27) being set back radially inwards relative to said first outer side wall (26) along the radial direction of said inner ring (22), said fixing ring (30) being mounted on said second outer side wall (27).

3. Applicator according to claim 1, characterized in that the end wall of said inner ring (22) is provided with a first locking lug (24), said end wall is provided with a connecting rod (23) extending in the axial direction, said application head (50) is provided axially with a mounting groove (51), said connecting rod (23) is fixedly inserted into said mounting groove (51), said first locking lug (24) is embedded in said application head (50).

4. Applicator according to claim 1, characterized in that a first end of said fixing ring (30) is fixedly mounted on said inner ring (22), a second end of said fixing ring (30) extends radially inwards to form an annular clamping plate (31), said clamping plate (31) extends in the axial direction of said fixing ring (30) to form a second locking lug (32).

5. Applicator according to claim 4, characterized in that said application head (50) comprises a mounting portion (53), an application portion (54) and a locking groove (52), the wall The outer part of said mounting part (53) is recessed radially inwards to form said locking groove (52), said clamping plate (31) engages in said locking groove (52), said second locking lug (32) is embedded in said mounting part (53), said mounting part (53) is fixed in said mounting space.

6. Applicator according to claim 5, characterized in that said application part (54) has at least one flat application surface, the minimum outside diameter of said application part (54) is greater than or equal to the outside diameter of said mounting part (53).

7. Applicator according to claim 1, characterized in that said application head (50) is made of porous material; and / or, said application head (50) is provided with flocking.

8. Packaging container, characterized in that it comprises the applicator according to any one of claims 1-7, an inner stopper (40) and an outer bottle (60), said inner stopper (40) being fixedly installed in said outer bottle (60), said applicator being removably assembled on said outer bottle (60), when said applicator is installed on said outer bottle (60), said application head (50) is located in said inner stopper (40), said inner stopper (40) and said inner ring (22) are assembled with a clamping force, said retaining ring (30) is located between said inner ring (22) and said inner stopper (40), said inner stopper (40) is located inside said outer ring (21), said inner stopper (40) is provided with a feed orifice, said outer bottle (60) contains a steel ball (64).

9. Packaging container according to claim 8, characterized in that said feed opening comprises a first feed opening (43), said inner cap (40) has a bottom plate (42), said bottom plate (42) is provided with at least one said first feed opening (43); and / or, said feed opening comprises at least one second feed opening (44), said second feed opening (44) is disposed on the peripheral wall of said inner cap (40).

10. Packaging container according to claim 8, characterized in that said outer bottle (60) comprises a bottle body (61) as well as a shoulder of the bottle (62) fixedly installed on said bottle body (61), the material of said inner stopper (40) comprises a first material, the material of said shoulder of the bottle (62) comprises a second material, the hardness of said first material is less than the hardness of said second material.

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