Bottle cap for storing liquid

Abstract

The utility model 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 utility model 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] This application relates to the technical field of bottle caps, and particularly to a bottle cap for storing liquids. Background Art

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

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

[0004] For example, in the liquor industry, consumers may hope to store new liquor and old liquor in some wine bottles at the same time. The new liquor and the old liquor can be consumed separately or mixed. However, the existing bottle cap designs cannot meet this requirement. Summary of the Utility Model

[0005] The purpose of this application is to provide a bottle cap for storing liquids, which solves the problem that traditional bottle caps cannot achieve hierarchical storage of liquids in the bottle body.

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

[0007] A bottle cap for storing liquids includes an inner cap, an end cap, a bottle mouth, and an inner plug; the bottle mouth includes an outer cylinder and an inner cylinder connected inside the outer cylinder, and a first flow channel is formed between the outer cylinder and the inner cylinder; the inner plug is used to be sealed and fixed inside the mouth of the bottle body and is in sliding seal fit with the inner surface of the outer cylinder. A sealing portion is provided at the bottom of the inner plug for sealing cooperation with the lower end of the inner cylinder. A second flow channel communicating with the first flow channel is formed between the inner plug and the inner cylinder. A communication hole communicating the second flow channel with the inner cavity of the bottle body is provided on the inner plug; the outer cylinder is threadedly connected to the outside of the mouth, the inner cap is hermetically connected to the upper end of the outer cylinder, and the end cap is hermetically connected to the upper end of the inner cylinder.

[0008] Furthermore, it further includes a connecting piece. The connecting piece is fixed on the outside of the mouth. The outer cylinder 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 for limiting cooperation with the connecting piece limiting ring is provided on the outer surface of the inner plug.

[0010] Further, the inner surface of the connecting member has vertically arranged anti-rotation ribs of the connecting member, and the outer side of the mouth part has vertically arranged anti-rotation ribs of the mouth part that cooperate with the anti-rotation ribs of the connecting member; the inner surface of the connecting member is provided with anti-pulling bosses of the connecting member, and the outer side of the mouth part is provided with mouth part card slots that are snap-fitted with the anti-pulling bosses of the connecting member.

[0011] Further, the inner lid and the outer cylinder are connected by a right-handed thread, and the outer cylinder and the connecting member are connected by a left-handed thread.

[0012] Further, a one-way rotation assembly is provided between the outer cylinder and the connecting member to enable the outer cylinder to rotate relative to the connecting member in the opening direction.

[0013] Further, it further includes a lower tube that sleeves outside the outer cylinder and the connecting member. The lower end of the lower tube is provided with a lower tube limiting ring extending below the connecting member. The inner surface of the lower tube has vertically arranged anti-rotation ribs of the lower tube, and the outer surface of the outer cylinder has vertically arranged anti-rotation ribs of the outer cylinder that cooperate with the anti-rotation ribs of the lower tube.

[0014] Further, the upper end of the lower tube is provided with a lower tube clamping ring, and the lower end of the inner lid is provided with an inner lid clamping ring that is snap-fitted with the lower tube clamping ring.

[0015] Further, it further includes an outer lid that covers the outside of the inner lid, and the lower end of the outer lid contacts the upper end of the lower tube.

[0016] Further, the inner surface of the outer lid has vertically arranged anti-rotation ribs of the outer lid, and the outer surface of the inner lid has vertically arranged anti-rotation ribs of the inner lid that cooperate with the anti-rotation ribs of the outer lid; the inner surface of the outer lid is provided with an outer lid clamping ring, and the outer surface of the inner lid is provided with an inner lid card slot that is snap-fitted with the outer lid clamping ring.

[0017] Advantages of the present application:

[0018] The bottle cap provided by the embodiment of the present application is used to be installed at the mouth part of the bottle body to seal the mouth part of the bottle body; when in use, a liquid can be stored in the bottle body, and another liquid can be stored in the liquid storage chamber surrounded by the end cap, the inner cylinder and the sealing part, thereby realizing the isolated storage of the two liquids and realizing the intercommunication and mixing of the two liquids under specific circumstances. Description of the drawings

[0019] To more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present application, so they should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0020] Figure 1 is a schematic structural diagram of the bottle cap provided by the embodiment of the present application;

[0021] Figure 2 is Figure 1 an exploded view of the bottle cap in

[0022] Figure 3 is Figure 1 a schematic structural diagram after removing the outer cover and the inner cover in

[0023] Figure 4 is Figure 1 a schematic structural diagram after removing the outer cover and the inner cover and separating the lower end of the inner cylinder from the seal in

[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 cover;

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

[0028] Figure 9 is a cross-sectional view of the connecting piece;

[0029] Figure 10 is a cross-sectional view of the inner plug;

[0030] Figure 11 is a cross-sectional view of the lower tube.

[0031] Reference numerals:

[0032] 10 - outer cover;

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

[0034] 102 - snap ring of the outer cover;

[0035] 20 - inner cover;

[0036] 201 - snap ring of the inner cover;

[0037] 202 - anti-rotation rib of the inner cover;

[0038] 203 - clamping groove of the inner cover;

[0039] 204 - Inner cover cavity;

[0040] 205 - Inner cover internal thread;

[0041] 206 - Inner cover inner tongue;

[0042] 30 - End cap;

[0043] 301 - End cap plate;

[0044] 302 - End cap inner tongue;

[0045] 40 - Bottle mouth;

[0046] 401 - Outer cylinder;

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

[0048] 4012 - Outer cylinder external thread;

[0049] 4013 - Outer cylinder internal thread;

[0050] 4014 - Outer cylinder ratchet;

[0051] 402 - Inner cylinder;

[0052] 403 - First flow channel;

[0053] 404 - Liquid storage;

[0054] 405 - Connecting bridge;

[0055] 50 - Connector;

[0056] 501 - Connector limit ring;

[0057] 502 - Connector anti - rotation rib;

[0058] 503 - Connector anti - pull convex platform;

[0059] 504 - Connector external thread;

[0060] 505 - Connector ratchet;

[0061] 60 - Inner plug;

[0062] 601 - Sealing part;

[0063] 602 - Second flow channel;

[0064] 603 - Communication hole;

[0065] 604 - Inner plug limit ring;

[0066] 605 - Upper section of inner plug;

[0067] 6051 - Upper sealing ring;

[0068] 606 - Lower part of inner plug;

[0069] 6061 - Lower fastening tongue;

[0070] 607 - Limiting step;

[0071] 70 - Lower pipe;

[0072] 701 - Lower pipe limiting ring;

[0073] 702 - Lower pipe anti - rotation rib;

[0074] 703 - Lower pipe clamping ring;

[0075] 80 - Bottle body;

[0076] 801 - Mouth part;

[0077] 802 - Mouth part anti - rotation rib;

[0078] 803 - Mouth part card slot. Detailed implementation manners

[0079] To make the objectives, technical solutions and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this application.

[0080] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. And without conflict, the embodiments in this application and the features in the embodiments can be combined with each other.

[0081] In the description of the embodiments of this application, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this application is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. The terms "set", "provided with", "installed", "connected", "coupled" 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 communication inside two elements.

[0082] See Figure 1 、 Figure 2, the bottle cap provided by the embodiment of the present application for storing liquid includes an inner cap 20, an end cap 30, a bottle mouth 40 and an inner plug 60; the bottle mouth 40 includes an outer cylinder 401 and an inner cylinder 402 connected inside the outer cylinder 401, and a first flow channel 403 is formed between the outer cylinder 401 and the inner cylinder 402; the inner plug 60 is used for being hermetically fixed inside the mouth 801 of the bottle body 80 and slidingly hermetically mating with the inner surface of the outer cylinder 401. A sealing portion 601 for hermetically mating with the lower end of the inner cylinder 402 is provided at the bottom of the inner plug 60. A second flow channel 602 communicating with the first flow channel 403 is formed between the inner plug 60 and the inner cylinder 402. A communication hole 603 communicating the second flow channel 602 with the inner cavity of the bottle body 80 is provided on the inner plug 60; the outer cylinder 401 is threadedly connected to the outside of the mouth 801, the inner cap 20 is hermetically connected to the upper end of the outer cylinder 401, and the end cap 30 is hermetically connected to the upper end of the inner cylinder 402.

[0083] The bottle cap provided by the embodiment of the present application is used for being installed at the mouth 801 of the bottle body 80 to seal the mouth 801 of the bottle body 80; when storing liquid, one kind of liquid can be stored in the bottle body 80, and another kind of liquid can be stored in a liquid storage chamber 404 surrounded by the end cap 30, the inner cylinder 402 and the sealing portion 601, so as to realize the isolated storage of the two kinds of liquids and realize the intercommunication and mixing of the two kinds of liquids under specific circumstances.

[0084] For example, the bottle body 80 is filled with a first liquid, and the liquid storage chamber 404 is filled with a second liquid; when it is necessary to pour out the liquids in the bottle body 80 and the liquid storage chamber 404, the inner cap 20 can be opened first, and then the bottle body 80 is tilted. The first liquid in the bottle body 80 flows out successively through the communication hole 603, the second flow channel 602 and the first flow channel 403; after all the first liquid in the bottle body 80 has flowed out, the bottle body 80 is placed upright, and the outer cylinder 401 of the bottle mouth 40 is controlled to rotate. The outer cylinder 401 drives the inner cylinder 402 to axially move relative to the inner plug 60, so that the lower end of the inner cylinder 402 is separated from the sealing portion 601, and further the sealing of the lower end of the inner cylinder 402 by the sealing portion 601 is lost. The second liquid in the liquid storage chamber 404 falls into the bottle body 80 under the action of gravity successively through the second flow channel 602 and the communication hole 603, and then the bottle body 80 is tilted again. The second liquid in the bottle body 80 flows out successively through the communication hole 603, the second flow channel 602 and the first flow channel 403. 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 storage chamber 404 flows into the bottle body 80 to be mixed with the first liquid, and then the mixed liquid is poured out.

[0085] In some embodiments, refer to Figure 6, the interior of the inner cap 20 has an inner cap cavity 204 with an open lower end. The side wall of the inner cap cavity 204 is provided with an inner cap 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 mates with the inner cap internal thread 205. During installation, the inner cap 20 is sleeved on the outer cylinder 401 and threadedly connected through the inner cap internal thread 205 and the outer cylinder external thread 4012, thereby plugging the upper end opening of the outer cylinder 401 through the inner cap 20. To further increase the sealing performance between the inner cap 20 and the outer cylinder 401, the top wall of the inner cap cavity 204 of the inner cap 20 is provided with an inner cap inner tongue 206 extending downward. The inner cap inner tongue 206 is in a ring structure and integrally formed with the inner cap 20. The outer diameter of the inner cap inner tongue 206 is adapted to the inner diameter of the outer cylinder 401, so that after the inner cap 20 and the outer cylinder 401 are assembled, the inner cap inner tongue 206 is inserted into the outer cylinder 401 and makes contact sealing with the inner surface of the outer cylinder 401, improving the sealing effect between the inner cap 20 and the outer cylinder 401.

[0086] In some embodiments, refer to Figure 7 , the end cap 30 includes a circular end cap plate 301 and an end cap inner tongue 302 connected to the end cap plate 301 and extending downward. The outer diameter of the end cap plate 301 is approximately equal to the outer diameter of the inner cylinder 402. The end cap inner tongue 302 is in a ring structure and integrally formed with the end cap plate 301. The outer diameter of the end cap inner tongue 302 is adapted to the inner diameter of the inner cylinder 402. During installation, the end cap inner tongue 302 is inserted into the inner cylinder 402 and makes contact sealing with the inner surface of the inner cylinder 402, and the end cap plate 301 abuts against the upper end surface of the inner cylinder 402, thereby plugging the upper end opening of the inner cylinder 402 through the end cap 30.

[0087] In some embodiments, refer to Figure 8 , the bottle mouth 40 mainly includes an outer cylinder 401 and an inner cylinder 402 coaxially arranged inside the outer cylinder 401. The outer cylinder 401 and the inner cylinder 402 are fixedly connected by a plurality of connecting bridges 405 that are circumferentially evenly distributed and spaced apart. A first flow channel 403 that penetrates up and down is formed between the outer cylinder 401 and the inner cylinder 402, and the first flow channel 403 is used for liquid to flow. The lower section of the outer cylinder 401 is threadedly connected to the mouth portion 801 of the bottle body 80. By rotating the outer cylinder 401, the entire bottle mouth 40 can be driven to move up and down relative to the bottle body 80.

[0088] In some embodiments, refer to Figure 10, the inner plug 60 includes an upper inner plug section 605 and a lower inner plug section 606, both of which are cylindrical structures. The upper inner plug section 605 is configured to be disposed within the outer cylinder 401 and is in sliding and sealing engagement with the inner surface of the outer cylinder 401, such that the upper inner plug section 605 and the outer cylinder 401 can slide relative to each other along the axial direction. To improve the sealing performance between the two, at least one upper sealing ring 6051 that is in sealing engagement with the inner surface of the outer cylinder 401 is provided on the outer surface of the upper inner plug section 605. The lower inner plug section 606 is configured to be inserted and fixed within the mouth 801 of the bottle body 80. To improve the fastening performance between the two, at least one lower fastening tongue 6061 that abuts against the inner surface of the mouth 801 is provided on the outer surface of the lower inner plug section 606. The lower end of the upper inner plug section 605 is connected to the upper end of the lower inner plug section 606, and a limiting step 607 for abutting against the upper end surface of the mouth 801 of the bottle body 80 is formed therebetween. Among them, the upper inner plug section 605 and the lower inner plug section 606 are integrally formed. The sealing portion 601 may include a circular sealing block, which is connected in the inner cavity at the lower end of the lower inner plug section 606, and the gap between the sealing portion 601 and the lower end of the lower inner plug section 606 forms a communication hole 603. There may be multiple communication holes 603, and the multiple communication holes 603 are circumferentially and uniformly arranged. Refer to Figure 1 , after the inner cap 20, the end cap 30, the bottle mouth 40, the inner plug 60 and the bottle body 80 are assembled, a second flow channel 602 that communicates with the first flow channel 403 is formed between the inner plug 60 and the inner cylinder 402, and the lower end opening of the inner cylinder 402 is sealed by the sealing portion 601. Meanwhile, a liquid storage chamber 404 for storing liquid is formed among the end cap 30, the inner cylinder 402 and the sealing portion 601.

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

[0090] The connecting member 50 is used for strengthening the fixation between the mouth part 801 and the inner plug 60. After being connected to the mouth part 801, the connecting member 50 is fixed relative to the mouth part 801, and the connecting member 50 does not perform axial and circumferential movements. The connection method between the connecting member 50 and the mouth part 801 can adopt various forms such as snap connection and clearance fit, and specific limitations are not made here. The limiting ring 501 of the connecting member is snap-connected above the limiting ring 604 of the inner plug, so that the inner plug 60 can be axially limited by the connecting member 50 to prevent the inner plug 60 from being pulled out when opening the cover. The outer surface of the connecting member 50 is provided with an external thread 504 of the connecting member, and the inner surface of the outer cylinder 401 is provided with an internal thread 4013 of the outer cylinder adapted to the external thread 504 of the connecting member; during installation, the outer cylinder 401 and the connecting member 50 are thread-connected through the internal thread 4013 of the outer cylinder and the external thread 504 of the connecting member.

[0091] In some embodiments, referring to Figure 9 , Figure 2 , the inner surface of the connecting member 50 has an anti-rotation rib 502 arranged vertically, and the outer side of the mouth part 801 has an anti-rotation rib 802 arranged vertically and cooperating with the anti-rotation rib 502 of the connecting member; the inner surface of the connecting member 50 is provided with an anti-pull convex platform 503, and the outer side of the mouth part 801 is provided with a mouth part clamping groove 803 that is snap-connected with the anti-pull convex platform 503. When the connecting member 50 is assembled on the mouth part 801, the anti-rotation rib 802 of the mouth part is inserted between adjacent anti-rotation ribs 502 of the connecting member, and the anti-pull convex platform 503 of the connecting member is snap-connected in the mouth part clamping groove 803. Through the cooperation between the anti-rotation rib 502 of the connecting member and the anti-rotation rib 802 of the mouth part, it plays a role in orienting, guiding and preventing the connecting member 50 from rotating relative to the mouth part 801. Through the cooperation between the anti-pull convex platform 503 of the connecting member and the mouth part clamping groove 803, it plays a role in preventing the connecting member 50 from axially moving relative to the mouth part 801, thereby realizing the firm connection between the connecting member 50 and the mouth part 801.

[0092] In some embodiments, referring to Figure 1 , Figure 2 , the inner cover 20 and the outer cylinder 401 are connected by a right-handed thread, and the outer cylinder 401 and the connecting member 50 are connected by a left-handed thread. Specifically, the internal thread 205 of the inner cover and the external thread 4012 of the outer cylinder are right-handed threads, and the internal thread 4013 of the outer cylinder and the external thread 504 of the connecting member are left-handed threads. Thus, when opening by rotating the inner cover 20, the connection between the outer cylinder 401 and the connecting member 50 can be made more firm to achieve the purpose of anti-loosening. Further, a one-way rotation assembly 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 opening direction.

[0093] The one-way rotation assembly is used to enable the outer cylinder 401 to rotate relative to the connecting member 50 only in the opening direction and not in the fastening direction. That is, when an opening-direction force 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 portion 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, under the action of the one-way rotation assembly, the outer cylinder 401 and the connecting member 50 remain stationary, preventing the outer cylinder 401 from driving the inner cylinder 402 to move downward, and thus enabling the sealing portion 601 to always seal the lower end of the inner cylinder 402. Exemplarily, the one-way rotation assembly may include an outer cylinder ratchet 4014 and a connecting member ratchet 505 that cooperates with the outer cylinder ratchet 4014; the outer cylinder ratchet 4014 is circumferentially and uniformly arranged on the inner surface of the outer cylinder 401, and the outer cylinder ratchet 4014 is located below the inner thread 4013 of the outer cylinder; the connecting member ratchet 505 is circumferentially and uniformly arranged on the outer surface of the connecting member 50, and the connecting member ratchet 505 is located below the outer thread of the connecting member. When the outer cylinder 401 and the connecting member 50 are assembled, the outer cylinder ratchet 4014 cooperates with the connecting member ratchet 505, and under the cooperation of the two, the outer cylinder 401 can only rotate in one direction relative to the connecting member 50 in the opening direction. Of course, the one-way rotation assembly may also be an existing pawl mechanism, etc., and no specific limitation is made here.

[0094] In some embodiments, referring to Figure 1 , Figure 2 , Figure 11 , the bottle cap of the embodiment of the present application further includes a lower tube 70. The lower tube 70 is sleeved outside the outer cylinder 401 and the connecting member 50. A lower tube limit ring 701 extending below the connecting member 50 is provided at the lower end of the lower tube 70. The inner surface of the lower tube 70 has vertically arranged lower tube anti-rotation ribs 702, and the outer surface of the outer cylinder 401 has vertically arranged outer cylinder anti-rotation ribs 4011 that cooperate with the lower tube anti-rotation ribs 702.

[0095] After the lower tube 70 is assembled outside the outer cylinder 401 and the connecting member 50, through the limit cooperation between the lower tube limit ring 701 and the lower end of the connecting member 50, the lower tube 70 can only rotate relative to the connecting member 50 and cannot move axially relative to the connecting member 50; the outer cylinder anti-rotation ribs 4011 are inserted between adjacent lower tube anti-rotation ribs 702. Through the cooperation between the outer cylinder anti-rotation ribs 4011 and the lower tube anti-rotation ribs 702, the functions of orientation, guiding, and anti-rotation are achieved, so that the lower tube 70 can only move axially relative to the outer cylinder 401 and cannot rotate relative to the outer cylinder 401.

[0096] In some embodiments, referring to Figure 1 , Figure 2 , Figure 5 , Figure 10, a lower pipe clamp ring 703 is provided at the upper end of the lower pipe 70, and an inner cover clamp ring 201 which is in clamping fit with the lower pipe clamp ring 703 is provided at the lower end of the inner cover 20. After the lower pipe 70 and the inner cover 20 are assembled, the lower pipe clamp ring 703 is clamped above the inner cover clamp ring 201, so that the inner cover 20 is axially limited by the lower pipe 70, and the firmness of the inner cover 20 after assembly is improved.

[0097] In some embodiments, referring to Figure 1 , Figure 2 , the bottle cap of the embodiment of the present application further includes an outer cover 10, the outer cover 10 covers the outside of the inner cover 20, and the lower end of the outer cover 10 contacts the upper end of the lower pipe 70. Exemplarily, referring to Figure 5 , Figure 6 , the inner surface of the outer cover 10 has vertically arranged outer cover anti-rotation ribs 101, and the outer surface of the inner cover 20 has vertically arranged inner cover anti-rotation ribs 202 that cooperate with the outer cover anti-rotation ribs 101; an outer cover clamp ring 102 is arranged on the inner surface of the outer cover 10, and an inner cover clamping groove 203 that is in clamping fit with the outer cover clamp ring 102 is arranged on the outer surface of the inner cover 20.

[0098] After the outer cover 10 and the inner cover 20 are assembled, the outer cover anti-rotation ribs 101 are inserted between adjacent inner cover anti-rotation ribs 202, and the outer cover clamp ring 102 is clamped in the inner cover clamping groove 203. Through the cooperation of the outer cover anti-rotation ribs 101 and the inner cover anti-rotation ribs 202, it plays a role in orienting, guiding and preventing the outer cover 10 from rotating relative to the inner cover 20. Through the cooperation of the outer cover clamp ring 102 and the inner cover clamping groove 203, it plays a role in preventing the outer cover 10 from axially moving relative to the inner cover 20, thereby realizing the connection of the outer cover 10 and the inner cover 20 together, so that the outer cover 10 and the inner cover 20 rotate or axially move synchronously.

[0099] Referring to Figure 1 , Figure 2 , when storing old wine with the bottle cap provided by the embodiment of the present application, the assembly process is as follows: first assemble the bottle cap, load the old wine into the liquid storage chamber 404 surrounded by the end cap 30, the inner cylinder 402 and the sealing part 601, load the new wine into the bottle body 80, and then press the assembled bottle cap onto the mouth part 801 of the bottle body 80.

[0100] When it is necessary to pour out the new wine, only need to rotate the outer cover 10, and the outer cover 10 drives the inner cover 20 to open synchronously. As shown in Figure 3 , then tilt the bottle body 80, and the new wine in the bottle body 80 flows out through the communication hole 603, the second flow channel 602 and the first flow channel 403 in sequence; after all the new wine in the bottle body 80 has flowed out, place the bottle body 80 upright, rotate the lower pipe 70, and the lower pipe 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 further the sealing part 601 loses the sealing of the lower end of the inner cylinder 402. AsFigure 4 As shown, the aged wine in the liquid storage chamber 404 falls into the bottle body 80 successively through the second flow channel 602 and the communication hole 603 under the action of gravity. Then, the bottle body 80 is tilted, and the aged wine in the bottle body 80 flows out successively through the communication hole 603, the second flow channel 602, and the first flow channel 403. Of course, during the process of pouring the wine, the lower end opening of the inner cylinder 402 can also be opened first to enable the aged wine in the liquid storage chamber 404 to flow into the bottle body 80 and mix with the new wine, and then the mixed wine is poured out.

[0101] The above description is only a preferred embodiment of the present application, and does not impose any formal limitations on the present application. Based on the technical essence of the present application, any simple modifications, equivalent replacements, and improvements made to the above embodiments within the spirit and principles of the present application 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 includes an inner lid (20), an end lid (30), a bottle mouth (40) and an inner plug (60); the bottle mouth (40) includes an outer cylinder (401) and an inner cylinder (402) connected inside the outer cylinder (401), and 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 inside the mouth (801) of the bottle body (80) and is in sliding and sealing fit with the inner surface of the outer cylinder (401). A sealing part (601) that is in sealing fit with the lower end of the inner cylinder (402) is provided at the bottom of the inner plug (60). A second flow channel (602) that communicates with the first flow channel (403) is formed between the inner plug (60) and the inner cylinder (402). A communication hole (603) that communicates the second flow channel (602) with the inner cavity of the bottle body (80) is provided on the inner plug (60); The outer cylinder (401) is threadedly connected to the outside of the mouth (801), the inner lid (20) is sealingly connected to the upper end of the outer cylinder (401), and the end lid (30) is sealingly connected to the upper end of the inner cylinder (402).

2. The bottle cap according to claim 1, characterized in that, It further includes a connecting piece (50). The connecting piece (50) is fixed to the outside of the mouth (801), and the outer cylinder (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, wherein, A connecting piece limiting ring (501) is provided at the upper end of the connecting piece (50), and an inner plug limiting ring (604) that is in limiting fit with the connecting piece limiting ring (501) is provided on the outer surface of the inner plug (60).

4. The bottle cap according to claim 2, characterized in that, The inner surface of the connecting piece (50) has vertically arranged connecting piece anti-rotation ribs (502), and the outside of the mouth (801) has vertically arranged mouth anti-rotation ribs (802) that cooperate with the connecting piece anti-rotation ribs (502); A connecting piece anti-pulling boss (503) is provided on the inner surface of the connecting piece (50), and a mouth card slot (803) that is in snap-fit with the connecting piece anti-pulling boss (503) is provided on the outside of the mouth (801).

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

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

7. The bottle cap according to claim 2, characterized in that, It further includes a lower pipe (70). The lower pipe (70) is sleeved outside the outer cylinder (401) and the connecting piece (50). A lower pipe limiting ring (701) that extends below the connecting piece (50) is provided at the lower end of the lower pipe (70). The inner surface of the lower pipe (70) has vertically arranged lower pipe anti-rotation ribs (702), and the outer surface of the outer cylinder (401) has vertically arranged outer cylinder anti-rotation ribs (4011) that cooperate with the lower pipe anti-rotation ribs (702).

8. The bottle cap according to claim 7, wherein, The upper end of the lower pipe (70) is provided with a lower pipe 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 pipe clamping ring (703).

9. The bottle cap according to claim 7, wherein It further includes an outer cover (10), the outer cover (10) is arranged outside the inner cover (20), and the lower end of the outer cover (10) is in contact with the upper end of the lower pipe (70).

10. The bottle cap according to claim 9, characterized in that, The inner surface of the outer cover (10) has vertically arranged outer cover anti-rotation ribs (101), and the outer surface of the inner cover (20) has vertically arranged inner cover anti-rotation ribs (202) that are matched with the outer cover anti-rotation ribs (101); the inner surface of the outer cover (10) is provided with an outer cover clamping ring (102), and the outer surface of the inner cover (20) is provided with an inner cover clamping groove (203) that is clamped and matched with the outer cover clamping ring (102).

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