Bottle cap for storing liquid

Abstract

The invention discloses a bottle cap for storing liquid, and relates to the technical field of bottle caps. The bottle cap for storing the liquid comprises an inner cap, an end cap, a bottle opening and an inner plug, the bottle opening comprises an outer cylinder and an inner cylinder connected in the outer cylinder, and a first flow channel is formed between the outer cylinder and the inner cylinder; the inner plug is used for being sealed and fixed in the opening part of the bottle body and is in sliding sealing fit with the inner surface of the outer barrel, a sealing part in sealing fit with the lower end of the inner barrel is arranged at the bottom of the inner plug, a second flow channel communicated with the first flow channel is formed between the inner plug and the inner barrel, and a communicating hole communicated with the second flow channel and the inner cavity of the bottle body is formed in the inner plug; the outer cylinder is in threaded connection with the outer side of the opening, the inner cover is in sealed connection with the upper end of the outer cylinder, and the end cover is in sealed connection with the upper end of the inner cylinder. The bottle cap provided by the embodiment of the invention is used for being mounted at the opening part of the bottle body so as to seal the opening part of the bottle body, and isolation or intercommunication mixing of two kinds of liquid can be realized.

Description

Technical Field

[0001] The present application relates to the technical field of bottle caps, and in particular to a bottle cap for storing liquids. Background Art

[0002] Bottle caps are a common packaging form for bottle packaging. Traditional bottle cap designs are mainly used to seal the bottle to prevent liquid leakage or external contamination.

[0003] However, traditional bottle caps usually do not have the function of storing liquid in two parts, nor do they support isolation or mixing of the two parts of liquid as needed. This is particularly inconvenient when different liquids need to be stored for a long time or need to be mixed at a specific time.

[0004] For example, in the liquor industry, consumers may want some bottles to store both new and old liquor, which can be drunk separately or mixed together. However, existing bottle cap designs cannot meet this demand. Summary of the invention

[0005] The purpose of the present application is to provide a bottle cap for storing liquids, so as to solve the problem that traditional bottle caps cannot achieve layered storage of liquids in the bottle.

[0006] The technical solution adopted by this application to solve its technical problem is:

[0007] A bottle cap for storing liquid, comprising an inner cap, an end cap, a bottle mouth and an inner plug; the bottle mouth comprises an outer cylinder and an inner cylinder connected to the outer cylinder, a first flow channel is formed between the outer cylinder and the inner cylinder; the inner plug is used to be sealed and fixed in the mouth of the bottle body and to slide and seal with the inner surface of the outer cylinder, a sealing portion is provided at the bottom of the inner plug and seals with the lower end of the inner cylinder, a second flow channel connected to the first flow channel is formed between the inner plug and the inner cylinder, and a connecting hole connecting the second flow channel and the inner cavity of the bottle body is provided on the inner plug; the outer cylinder is threadedly connected to the outer side of the mouth, the inner cap is sealably connected to the upper end of the outer cylinder, and the end cap is sealably connected to the upper end of the inner cylinder.

[0008] Furthermore, it also includes a connecting piece, which is fixed on the outside of the mouth, and the outer tube is sleeved outside the connecting piece and is threadedly connected to the connecting piece.

[0009] Furthermore, a connecting piece limiting ring is provided at the upper end of the connecting piece, and an inner plug limiting ring which cooperates with the connecting piece limiting ring is provided on the outer surface of the inner plug.

[0010] Furthermore, the inner surface of the connector has a vertically arranged connector anti-rotation rib, and the outer side of the mouth has a vertically arranged mouth anti-rotation rib that cooperates with the connector anti-rotation rib; the inner surface of the connector is provided with a connector anti-pullout boss, and the outer side of the mouth is provided with a mouth groove that is clipped and cooperates with the connector anti-pullout boss.

[0011] Furthermore, the inner cover is connected to the outer cylinder via a right-handed thread, and the outer cylinder is connected to the connecting piece via a left-handed thread.

[0012] Furthermore, a one-way rotating component is provided between the outer cylinder and the connecting member, which enables the outer cylinder to rotate relative to the connecting member in the opening direction.

[0013] Furthermore, it also includes a lower tube, which is sleeved on the outside of the outer tube and the connecting piece, and the lower end of the lower tube is provided with a lower tube limiting ring extending to the bottom of the connecting piece, the inner surface of the lower tube has a vertically arranged lower tube anti-rotation rib, and the outer surface of the outer tube has a vertically arranged outer tube anti-rotation rib that cooperates with the lower tube anti-rotation rib.

[0014] Furthermore, a lower tube clamping ring is provided at the upper end of the lower tube, and an inner cover clamping ring which is clamped and matched with the lower tube clamping ring is provided at the lower end of the inner cover.

[0015] Furthermore, it also includes an outer cover, which is arranged on the outer side of the inner cover, and the lower end of the outer cover is in contact with the upper end of the lower tube.

[0016] Furthermore, the inner surface of the outer cover has a vertically arranged outer cover anti-rotation rib, and the outer surface of the inner cover has a vertically arranged inner cover anti-rotation rib that cooperates with the outer cover anti-rotation rib; the inner surface of the outer cover is provided with an outer cover clamping ring, and the outer surface of the inner cover is provided with an inner cover clamping groove that cooperates with the outer cover clamping ring.

[0017] Beneficial effects of this application:

[0018] The bottle cap provided in the embodiment of the present application is used to be installed at the mouth of the bottle body to seal the mouth of the bottle body; when in use, one liquid can be stored in the bottle body, and another liquid can be stored in the liquid bin surrounded by the end cap, the inner tube and the sealing part, thereby realizing the isolated storage of the two liquids and achieving the mutual mixing of the two liquids under certain circumstances. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 is a schematic diagram of the structure of a bottle cap provided in an embodiment of the present application;

[0021] Figure 2 yes Figure 1 Exploded view of the bottle cap;

[0022] Figure 3 yes Figure 1 A schematic diagram of the structure after removing the outer cover and the inner cover;

[0023] Figure 4 yes Figure 1 A schematic diagram of the structure after the outer cover and the inner cover are removed and the lower end of the inner cylinder is separated from the sealing part;

[0024] Figure 5 is a cross-sectional view of the outer cover;

[0025] Figure 6 is a cross-sectional view of the inner cover;

[0026] Figure 7 is a cross-sectional view of the end cap;

[0027] Figure 8 It is a cross-sectional view of the bottle mouth;

[0028] Fig. 9 is a cross-sectional view of the connector;

[0029] Fig.10 It is a cross-sectional view of the inner plug;

[0030] Fig.11 It is a cross-sectional view of the down tube.

[0031] Reference numerals:

[0032] 10- outer cover;

[0033] 101-outer cover anti-rotation rib;

[0034] 102-outer cover snap ring;

[0035] 20-inner cover;

[0036] 201- inner cover snap ring;

[0037] 202-Inner cover anti-rotation rib;

[0038] 203-inner cover card slot;

[0039] 204-inner cover cavity;

[0040] 205-internal thread of inner cover;

[0041] 206-Inner cover and inner tongue;

[0042] 30-end cover;

[0043] 301-end cover plate;

[0044] 302-end cover inner tongue;

[0045] 40-bottle mouth;

[0046] 401-outer cylinder;

[0047] 4011-Outer cylinder anti-rotation rib;

[0048] 4012-external thread of outer cylinder;

[0049] 4013-internal thread of outer cylinder;

[0050] 4014-outer cylinder ratchet;

[0051] 402-inner cylinder;

[0052] 403-first flow channel;

[0053] 404-Liquid tank;

[0054] 405-Connection bridge;

[0055] 50-connecting piece;

[0056] 501-connector limiting ring;

[0057] 502-Connector anti-rotation reinforcement;

[0058] 503-connector anti-extraction boss;

[0059] 504-connector external thread;

[0060] 505-connector ratchet;

[0061] 60-Nese;

[0062] 601-sealing part;

[0063] 602-second flow channel;

[0064] 603- communication hole;

[0065] 604-Internal stopper ring;

[0066] 605-The upper section of the inner plug;

[0067] 6051-upper sealing ring;

[0068] 606-lower section of inner plug;

[0069] 6061-lower fastening tongue;

[0070] 607-limited steps;

[0071] 70 - down tube;

[0072] 701-lower tube limiting ring;

[0073] 702-Down tube anti-rotation rib;

[0074] 703-lower tube clamp;

[0075] 80-bottle body;

[0076] 801-mouth;

[0077] 802-Oral anti-rotation tendon;

[0078] 803- Mouth slot. DETAILED DESCRIPTION

[0079] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0080] It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the embodiments and features in the embodiments of this application can be combined with each other without conflict.

[0081] In the description of the embodiments of the present application, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or is the orientation or positional relationship in which the product of the application is usually placed when in use, or is the orientation or positional relationship commonly understood by those skilled in the art. The terms "disposed", "opened", "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, and an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two elements.

[0082] See also Figure 1 , Figure 2, the bottle cap for storing liquid provided in the embodiment of the present application comprises an inner cover 20, an end cover 30, a bottle mouth 40 and an inner plug 60; the bottle mouth 40 comprises an outer tube 401 and an inner tube 402 connected to the outer tube 401, and a first flow channel 403 is formed between the outer tube 401 and the inner tube 402; the inner plug 60 is used to be sealed and fixed in the mouth 801 of the bottle body 80, and to slide and seal with the inner surface of the outer tube 401, a sealing portion 601 is provided at the bottom of the inner plug 60 for sealing with the lower end of the inner tube 402, a second flow channel 602 communicating with the first flow channel 403 is formed between the inner plug 60 and the inner tube 402, and a connecting hole 603 connecting the second flow channel 602 and the inner cavity of the bottle body 80 is provided on the inner plug 60; the outer tube 401 is threadedly connected to the outer side of the mouth 801, the inner cover 20 is sealedly connected to the upper end of the outer tube 401, and the end cover 30 is sealedly connected to the upper end of the inner tube 402.

[0083] The bottle cap provided in the embodiment of the present application is used to be installed at the mouth 801 of the bottle body 80 to seal the mouth 801 of the bottle body 80; when storing liquid, one liquid can be stored in the bottle body 80, and another liquid can be stored in the liquid bin 404 surrounded by the end cap 30, the inner cylinder 402 and the sealing portion 601, thereby realizing the isolated storage of the two liquids and achieving the mutual mixing of the two liquids under specific circumstances.

[0084] For example, the bottle body 80 is filled with a first liquid, and the liquid chamber 404 is filled with a second liquid; when the liquid in the bottle body 80 and the liquid chamber 404 needs to be poured out, the inner cover 20 can be opened first, and then the bottle body 80 is tilted, and the first liquid in the bottle body 80 flows out through the connecting hole 603, the second flow channel 602 and the first flow channel 403 in sequence; when the first liquid in the bottle body 80 has completely flowed out, the bottle body 80 is placed upright, and the outer cylinder 401 of the bottle mouth 40 is controlled to rotate, and the outer cylinder 401 with The inner cylinder 402 is moved axially relative to the inner plug 60 to separate the lower end of the inner cylinder 402 from the sealing portion 601, and then the sealing portion 601 loses its seal on the lower end of the inner cylinder 402. The second liquid in the liquid bin 404 falls into the bottle body 80 through the second flow channel 602 and the connecting hole 603 in sequence under the action of gravity. Then the bottle body 80 is tilted, and the second liquid in the bottle body 80 flows out through the connecting hole 603, the second flow channel 602 and the first flow channel 403 in sequence. Of course, during use, the lower end opening of the inner cylinder 402 can also be opened first, so that the second liquid in the liquid bin 404 flows into the bottle body 80 and mixes with the first liquid, and then the mixed liquid is poured out.

[0085] In some embodiments, see Figure 6The inner cover 20 has an inner cover cavity 204 with an opening at the lower end, and the side wall of the inner cover cavity 204 is provided with an inner cover internal thread 205, and the outer surface of the upper end of the outer cylinder 401 is provided with an outer cylinder external thread 4012 that matches the inner cover internal thread 205. During installation, the inner cover 20 is sleeved on the outer cylinder 401, and the inner cover internal thread 205 is threadedly connected with the outer cylinder external thread 4012, and then the upper end opening of the outer cylinder 401 is blocked by the inner cover 20. In order to further increase the sealing between the inner cover 20 and the outer cylinder 401, the top wall of the inner cover cavity 204 of the inner cover 20 is provided with an inner cover inner tongue 206 extending downward. The inner cover inner tongue 206 is annular and is integrally formed with the inner cover 20. The outer diameter of the inner cover inner tongue 206 is adapted to the inner diameter of the outer cylinder 401, so that after the inner cover 20 and the outer cylinder 401 are assembled, the inner cover inner tongue 206 is inserted into the outer cylinder 401 and contacts and seals with the inner surface of the outer cylinder 401, thereby improving the sealing effect between the inner cover 20 and the outer cylinder 401.

[0086] In some embodiments, see Figure 7 The end cover 30 includes a circular end cover plate 301 and an end cover inner tongue 302 connected to the end cover plate 301 and extending downward. The outer diameter of the end cover plate 301 is roughly equal to the outer diameter of the inner cylinder 402. The end cover inner tongue 302 is annular and integrally formed with the end cover plate 301. The outer diameter of the end cover inner tongue 302 matches the inner diameter of the inner cylinder 402. During installation, the end cover inner tongue 302 is inserted into the inner cylinder 402 and is contact-sealed with the inner surface of the inner cylinder 402. The end cover plate 301 abuts against the upper end surface of the inner cylinder 402, and then the upper end opening of the inner cylinder 402 is blocked by the end cover 30.

[0087] In some embodiments, see Figure 8 The bottle mouth 40 mainly includes an outer cylinder 401 and an inner cylinder 402 coaxially arranged in the outer cylinder 401. The outer cylinder 401 and the inner cylinder 402 are fixedly connected by a plurality of connecting bridges 405 evenly distributed and arranged at intervals around the circumference. A first flow channel 403 running through the outer cylinder 401 and the inner cylinder 402 is formed, and the first flow channel 403 is used for liquid flow. The lower section of the outer cylinder 401 is threadedly connected to the mouth 801 of the bottle body 80. By rotating the outer cylinder 401, the bottle mouth 40 as a whole can be driven to move up and down relative to the bottle body 80.

[0088] In some embodiments, see Fig.10The inner plug 60 includes an inner plug upper section 605 and an inner plug lower section 606, both of which are cylindrical structures. The inner plug upper section 605 is used to be arranged in the outer tube 401 and to slide and seal with the inner surface of the outer tube 401, so that the inner plug upper section 605 and the outer tube 401 can slide relative to each other in the axial direction. In order to improve the sealing between the two, the outer surface of the inner plug upper section 605 is also provided with at least one circle of upper sealing ring 6051 that seals with the inner surface of the outer tube 401. The inner plug lower section 606 is used to be inserted and fixed in the mouth 801 of the bottle body 80. In order to improve the tightness between the two, the outer surface of the inner plug lower section 606 is also provided with at least one circle of lower fastening tongue 6061 that presses against the inner surface of the mouth 801. The lower end of the inner plug upper section 605 is connected to the upper end of the inner plug lower section 606, and a limiting step 607 is formed between the two for contacting with the upper end surface of the mouth 801 of the bottle body 80. The inner plug upper section 605 and the inner plug lower section 606 are an integrally formed structure. The sealing portion 601 may include a circular sealing block connected to the inner cavity at the lower end of the inner plug lower section 606, and the gap between the sealing portion 601 and the lower end of the inner plug lower section 606 forms a connecting hole 603, and the connecting hole 603 may include multiple connecting holes 603, and the multiple connecting holes 603 are evenly distributed around the circumference. Figure 1 When the inner cover 20, the end cover 30, the bottle mouth 40, the inner plug 60 and the bottle body 80 are assembled, a second flow channel 602 connected to the first flow channel 403 is formed between the inner plug 60 and the inner tube 402, and the lower end opening of the inner tube 402 is sealed by the sealing part 601. At the same time, a liquid tank 404 for storing liquid is surrounded between the end cover 30, the inner tube 402 and the sealing part 601.

[0089] In some embodiments, see Figure 1 , Figure 2 The bottle cap of the embodiment of the present application further includes a connecting member 50, which is fixed on the outside of the mouth 801, and the outer tube 401 is sleeved outside the connecting member 50 and threadedly connected with the connecting member 50. A connecting member limiting ring 501 is provided on the upper end of the connecting member 50, and an inner plug limiting ring 604 that cooperates with the connecting member limiting ring 501 is provided on the outer surface of the inner plug 60.

[0090] The connector 50 is used to strengthen the fixation of the mouth 801 and the inner plug 60. After the connector 50 is connected to the mouth 801, it is fixed relative to the mouth 801. The connector 50 does not move axially or circumferentially. The connection method between the connector 50 and the mouth 801 can be in various forms such as snap-fitting and clearance fitting, which are not specifically limited here. The connector limiting ring 501 is snap-fitted above the inner plug limiting ring 604, so that the inner plug 60 can be axially limited by the connector 50 to prevent the inner plug 60 from being pulled out when the cover is opened. The outer surface of the connector 50 is provided with a connector external thread 504, and the inner surface of the outer cylinder 401 is provided with an outer cylinder internal thread 4013 that matches the connector external thread 504; when installed, the outer cylinder 401 and the connector 50 are threadedly connected through the outer cylinder internal thread 4013 and the connector external thread 504.

[0091] In some embodiments, see Fig. 9 , Figure 2 The inner surface of the connecting piece 50 has a vertically arranged connecting piece anti-rotation rib 502, and the outer side of the mouth 801 has a vertically arranged mouth anti-rotation rib 802 that cooperates with the connecting piece anti-rotation rib 502; the inner surface of the connecting piece 50 is provided with a connecting piece anti-pulling boss 503, and the outer side of the mouth 801 is provided with a mouth slot 803 that is snap-fitted with the connecting piece anti-pulling boss 503. When the connecting piece 50 is assembled on the mouth 801, the mouth anti-rotation ribs 802 are inserted between adjacent connecting piece anti-rotation ribs 502, and the connecting piece anti-pullout boss 503 is clamped in the mouth slot 803. Through the cooperation between the connecting piece anti-rotation ribs 502 and the mouth anti-rotation ribs 802, the connecting piece 50 is oriented, guided and prevented from rotating relative to the mouth 801. Through the cooperation between the connecting piece anti-pullout boss 503 and the mouth slot 803, the connecting piece 50 is prevented from axially moving relative to the mouth 801, thereby realizing that the connecting piece 50 and the mouth 801 are firmly connected together.

[0092] In some embodiments, see Figure 1 , Figure 2 , the inner cover 20 is connected to the outer cylinder 401 by a right-handed thread, and the outer cylinder 401 is connected to the connecting member 50 by a left-handed thread. Specifically, the inner cover internal thread 205 and the outer cylinder external thread 4012 are right-handed threads, and the outer cylinder internal thread 4013 and the connecting member external thread 504 are left-handed threads. Thus, when the inner cover 20 is rotated to open, the connection between the outer cylinder 401 and the connecting member 50 can be made more secure, achieving the purpose of preventing loosening. Further, a one-way rotating component is provided between the outer cylinder 401 and the connecting member 50 to enable the outer cylinder 401 to rotate relative to the connecting member 50 in the direction of opening.

[0093] The one-way rotating assembly is used to make the outer cylinder 401 rotate only in the opening direction relative to the connecting member 50, but not in the tightening direction. That is, when a force in the opening direction is applied to the outer cylinder 401, the outer cylinder 401 rotates relative to the connecting member 50 and moves upward, thereby driving the inner cylinder 402 to move upward, so that the sealing part 601 loses the seal on the lower end of the inner cylinder 402; when a force opposite to the opening direction is applied to the outer cylinder 401, the one-way rotating assembly keeps the outer cylinder 401 and the connecting member 50 stationary, preventing the outer cylinder 401 from driving the inner cylinder 402 to move downward, thereby making the sealing part 601 always seal the lower end of the inner cylinder 402. Exemplarily, the one-way rotation assembly can include an outer cylinder ratchet 4014 and a connector ratchet 505 that cooperates with the outer cylinder ratchet 4014; the outer cylinder ratchet 4014 is evenly distributed on the inner surface of the outer cylinder 401, and the outer cylinder ratchet 4014 is located below the outer cylinder internal thread 4013; the connector ratchet 505 is evenly distributed on the outer surface of the connector 50, and the connector ratchet 505 is located below the connector external thread. When the outer cylinder 401 and the connector 50 are assembled, the outer cylinder ratchet 4014 cooperates with the connector ratchet 505, and under the cooperation of the two, the outer cylinder 401 can only rotate unidirectionally relative to the connector 50 in the opening direction. Of course, the one-way rotation assembly can also be an existing ratchet mechanism, etc., which is not specifically limited here.

[0094] In some embodiments, see Figure 1 , Figure 2 , Fig.11 The bottle cap of the embodiment of the present application also includes a lower tube 70, which is sleeved on the outside of the outer tube 401 and the connecting piece 50. The lower end of the lower tube 70 is provided with a lower tube limiting ring 701 extending to the bottom of the connecting piece 50. The inner surface of the lower tube 70 has a vertically arranged lower tube anti-rotation rib 702, and the outer surface of the outer tube 401 has a vertically arranged outer tube anti-rotation rib 4011 that cooperates with the lower tube anti-rotation rib 702.

[0095] When the lower tube 70 is assembled on the outside of the outer tube 401 and the connecting member 50, the lower tube 70 can only rotate relative to the connecting member 50 but cannot move axially relative to the connecting member 50 through the limiting cooperation between the lower tube limiting ring 701 and the lower end of the connecting member 50; the outer tube anti-rotation rib 4011 is inserted between adjacent lower tube anti-rotation ribs 702, and through the cooperation between the outer tube anti-rotation rib 4011 and the lower tube anti-rotation rib 702, it plays a role of orientation, guidance and anti-rotation, so that the lower tube 70 can only move axially relative to the outer tube 401 but cannot rotate relative to the outer tube 401.

[0096] In some embodiments, see Figure 1 , Figure 2 , Figure 5 , Fig.10The upper end of the lower tube 70 is provided with a lower tube clamping ring 703, and the lower end of the inner cover 20 is provided with an inner cover clamping ring 201 that is engaged with the lower tube clamping ring 703. When the lower tube 70 and the inner cover 20 are assembled, the lower tube clamping ring 703 is engaged with the upper part of the inner cover clamping ring 201, thereby axially limiting the inner cover 20 through the lower tube 70, thereby improving the firmness of the inner cover 20 after assembly.

[0097] In some embodiments, see Figure 1 , Figure 2 The bottle cap of the embodiment of the present application further includes an outer cap 10, which is disposed on the outer side of the inner cap 20, and the lower end of the outer cap 10 contacts the upper end of the lower tube 70. For example, see Figure 5 , Figure 6 The inner surface of the outer cover 10 has a vertically arranged outer cover anti-rotation rib 101, and the outer surface of the inner cover 20 has a vertically arranged inner cover anti-rotation rib 202 that cooperates with the outer cover anti-rotation rib 101; the inner surface of the outer cover 10 is provided with an outer cover snap ring 102, and the outer surface of the inner cover 20 is provided with an inner cover snap groove 203 that is snap-fitted with the outer cover snap ring 102.

[0098] When the outer cover 10 and the inner cover 20 are assembled, the outer cover anti-rotation rib 101 is inserted between the adjacent inner cover anti-rotation ribs 202, and the outer cover clamping ring 102 is clamped in the inner cover clamping groove 203. Through the cooperation between the outer cover anti-rotation rib 101 and the inner cover anti-rotation rib 202, the outer cover 10 is oriented, guided and prevented from rotating relative to the inner cover 20. Through the cooperation between the outer cover clamping ring 102 and the inner cover clamping groove 203, the outer cover 10 is prevented from axially moving relative to the inner cover 20, thereby realizing the connection between the outer cover 10 and the inner cover 20, so that the outer cover 10 and the inner cover 20 rotate or move axially synchronously.

[0099] See also Figure 1 , Figure 2 The bottle cap provided in the embodiment of the present application is used to store old wine, and its assembly process is as follows: first assemble the bottle cap, put the old wine into the liquid bin 404 surrounded by the end cap 30, the inner cylinder 402 and the sealing part 601, put the new wine into the bottle body 80, and then press the assembled bottle cap onto the mouth 801 of the bottle body 80.

[0100] When it is necessary to pour out the new wine, the outer cover 10 only needs to be rotated, and the outer cover 10 drives the inner cover 20 to open synchronously. Figure 3 As shown, the bottle body 80 is then tilted, and the new wine in the bottle body 80 flows out through the connecting hole 603, the second flow channel 602 and the first flow channel 403 in sequence; when all the new wine in the bottle body 80 flows out, the bottle body 80 is put upright, and the lower tube 70 is rotated, and the lower tube 70 drives the outer cylinder 401 to rotate in the opening direction, and the outer cylinder 401 drives the inner cylinder 402 to move upward relative to the inner plug 60, so that the lower end of the inner cylinder 402 is separated from the sealing part 601, and then the sealing part 601 loses the sealing of the lower end of the inner cylinder 402, as shown in FIG. Figure 4 As shown, the old wine in the liquid bin 404 falls into the bottle body 80 through the second flow channel 602 and the connecting hole 603 in sequence under the action of gravity, and then the bottle body 80 is tilted, and the old wine in the bottle body 80 flows out through the connecting hole 603, the second flow channel 602 and the first flow channel 403 in sequence. Of course, during the pouring process, the lower end opening of the inner cylinder 402 can also be opened first, so that the old wine in the liquid bin 404 flows into the bottle body 80 and mixes with the new wine, and then the mixed wine is poured out.

[0101] The above is only a preferred embodiment of the present application and does not constitute any form of limitation to the present application. Based on the technical essence of the present application and within the spirit and principles of the present application, any simple modification, equivalent replacement and improvement of the above embodiments shall still fall within the protection scope of the technical solution of the present application.

Claims

1. A bottle cap for storing liquid, characterized in that: It comprises an inner cover (20), an end cover (30), a bottle mouth (40) and an inner plug (60); the bottle mouth (40) comprises an outer cylinder (401) and an inner cylinder (402) connected to the outer cylinder (401); a first flow channel (403) is formed between the outer cylinder (401) and the inner cylinder (402); The inner plug (60) is used to be sealed and fixed in the mouth (801) of the bottle body (80) and to be slidably sealed with the inner surface of the outer tube (401); the bottom of the inner plug (60) is provided with a sealing portion (601) that is sealed with the lower end of the inner tube (402); a second flow channel (602) that is connected to the first flow channel (403) is formed between the inner plug (60) and the inner tube (402); and a connecting hole (603) that connects the second flow channel (602) with the inner cavity of the bottle body (80) is provided on the inner plug (60); The outer tube (401) is threadedly connected to the outer side of the mouth (801), the inner cover (20) is sealedly connected to the upper end of the outer tube (401), and the end cover (30) is sealedly connected to the upper end of the inner tube (402).

2. The bottle cap according to claim 1, characterized in that: It also includes a connecting piece (50), wherein the connecting piece (50) is fixed on the outside of the mouth (801), and the outer tube (401) is sleeved outside the connecting piece (50) and is threadedly connected to the connecting piece (50).

3. The bottle cap according to claim 2, characterized in that: The upper end of the connecting piece (50) is provided with a connecting piece limiting ring (501), and the outer surface of the inner plug (60) is provided with an inner plug limiting ring (604) which cooperates with the connecting piece limiting ring (501) in limiting position.

4. The bottle cap according to claim 2, characterized in that: The inner surface of the connecting piece (50) has a connecting piece anti-rotation rib (502) arranged vertically, and the outer side of the mouth (801) has a mouth anti-rotation rib (802) arranged vertically and matched with the connecting piece anti-rotation rib (502); The inner surface of the connecting piece (50) is provided with a connecting piece anti-extraction boss (503), and the outer side of the mouth (801) is provided with a mouth slot (803) that is engaged with the connecting piece anti-extraction boss (503).

5. The bottle cap according to claim 2, 3 or 4, characterized in that: The inner cover (20) and the outer cylinder (401) are connected via a right-handed thread, and the outer cylinder (401) and the connecting member (50) are connected via a left-handed thread.

6. The bottle cap according to claim 5, characterized in that: A one-way rotating component is provided between the outer cylinder (401) and the connecting member (50) to enable the outer cylinder (401) to rotate relative to the connecting member (50) in an opening direction.

7. The bottle cap according to claim 2, characterized in that: It also includes a lower tube (70), which is sleeved on the outside of the outer tube (401) and the connecting piece (50), and the lower end of the lower tube (70) is provided with a lower tube limiting ring (701) extending to the bottom of the connecting piece (50), the inner surface of the lower tube (70) has a vertically arranged lower tube anti-rotation rib (702), and the outer surface of the outer tube (401) has a vertically arranged outer tube anti-rotation rib (4011) that matches the lower tube anti-rotation rib (702).

8. The bottle cap according to claim 7, characterized in that: The upper end of the lower tube (70) is provided with a lower tube clamping ring (703), and the lower end of the inner cover (20) is provided with an inner cover clamping ring (201) that is clamped and matched with the lower tube clamping ring (703).

9. The bottle cap according to claim 7, characterized in that: It also includes an outer cover (10), which is arranged on the outer side of the inner cover (20), and the lower end of the outer cover (10) is in contact with the upper end of the lower tube (70).

10. The bottle cap according to claim 9, characterized in that: The inner surface of the outer cover (10) has a vertically arranged outer cover anti-rotation rib (101), and the outer surface of the inner cover (20) has a vertically arranged inner cover anti-rotation rib (202) that cooperates with the outer cover anti-rotation rib (101); the inner surface of the outer cover (10) is provided with an outer cover snap ring (102), and the outer surface of the inner cover (20) is provided with an inner cover snap groove (203) that is snap-fitted with the outer cover snap ring (102).

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