A preservative bottle cap for storing concentrated nutritional sauce

Abstract

The present application relates to the technical field of beverages, and in particular to a preservative bottle cap for storing concentrated nutritional sauce, comprising a container body for containing a brewing medium; a piston; a communication pipeline penetrating through both ends of the container body, one end of the communication pipeline being connected to the container body; the piston being connected to the end of the container body through a first sealing film; wherein the piston has a communication hole, the communication pipeline penetrating through the communication hole, and the piston and the communication pipeline being connected through a second sealing film to seal the communication hole; wherein the lower end surface of the piston has a connecting structure for connecting to the bottle mouth thread. By using the container of the present application, the sauce in the container body can be completely pushed into the water bottle through the piston, and the layout of the sauce outlet and the drinking water outlet of the container can completely seal the sauce in the container body, effectively ensuring the shelf life of the internal sauce and preventing the sauce from spoiling. Therefore, the fruit sauce with higher nutritional ingredients and better taste can be used as the brewing medium of the bottle cap beverage.

Description

Technical Field

[0001] This invention relates to the field of beverage technology, and in particular to a preservative bottle cap for storing concentrated nutrient sauces. Background Technology

[0002] A type of bottle cap beverage is currently popular on the market. The freeze-dried powder is stored in a bottle cap container. When you want to drink it, you simply screw the container into a mineral water bottle and squeeze the freeze-dried powder into the mineral water. This type of bottle cap beverage is very convenient to carry.

[0003] However, commercially available bagged fruit juices are available not only as freeze-dried powder but also as concentrated concentrates and jams. Concentrated concentrates and jams produce a better-tasting juice. Bottled beverages on the market, however, are all made from freeze-dried powder; there are no bottled beverages made from concentrated concentrates or jams. This is because freeze-dried powders have a very low moisture content, making them easier to store, and their poor flowability allows for less stringent sealing requirements. Jams, on the other hand, are extremely prone to spoilage. To achieve the same shelf life, jams require better sealing to prevent oxygen from entering and causing oxidation. Furthermore, jam tends to stick to the inner wall of the container, making it difficult to transfer into mineral water bottles. It's difficult to simultaneously solve the problems of sealing and flowability. Summary of the Invention

[0004] To address the aforementioned problems in the prior art, the present invention provides an anti-corrosion bottle cap for storing concentrated nutrient sauce, comprising a container body for containing a beverage medium;

[0005] A piston is slidably connected to the inner wall of the container body and is used to squeeze the beverage medium inside the container body;

[0006] A connecting pipe extends through both ends of the container body, and one section of the connecting pipe is connected to the container body;

[0007] The piston is connected to the lower end of the container body by a first sealing membrane;

[0008] The piston has a connecting hole, and the connecting pipe passes through the connecting hole; the piston and the connecting pipe are connected by a second sealing membrane to seal the connecting hole.

[0009] The diameter of the connecting hole is larger than the diameter of the connecting pipe, and the gap between the two forms the sauce outlet;

[0010] The lower end face of the piston has a connecting structure for connecting to the bottle neck thread.

[0011] Furthermore, the connecting pipe has an annular boss, the sidewall of which fits against the sidewall of the connecting hole to form a primary seal, which prevents the jam from leaking out.

[0012] Furthermore, the second sealing membrane has an inflatable region that bulges toward the non-connecting surface of the second sealing membrane; the inflatable region covers the gap of the primary seal.

[0013] The primary seal allows gas to pass through.

[0014] Furthermore, it also includes a locking mechanism;

[0015] The locking mechanism includes a locking part A disposed in the connecting hole and a locking part B disposed in the connecting pipe. The locking part A and the locking part B cooperate to keep the upper end face of the piston in contact with the inner top surface of the container body, thereby ensuring the sealing effect on the water bottle.

[0016] Furthermore, the locking part A is an internal connecting thread provided in the connecting hole, and the locking part B is an external connecting thread provided in the connecting pipe;

[0017] The locking mechanism is further provided with a connecting groove, which cuts off the internal connecting thread and / or the external connecting thread along the axial direction of the connecting pipe.

[0018] Furthermore, the locking part A is an elastic protrusion A disposed in the communicating hole, and the locking part B is an elastic protrusion B disposed in the communicating pipe;

[0019] The elastic protrusion A and the elastic protrusion B form an inclined surface fit, which converts the horizontal elastic force into the vertical elastic force.

[0020] Furthermore, a limiting part A is provided on the inner top surface of the container body, and a limiting part B is provided on the top surface of the piston. The limiting part B is coupled with the limiting part A to prevent the piston from rotating relative to the container body.

[0021] Furthermore, a sealing ring is provided on the inner top surface of the container body or the upper end surface of the piston. When the upper end surface of the piston abuts against the inner top surface of the container body, the upper end surface of the piston squeezes the sealing ring.

[0022] Furthermore, a valve structure is provided inside the connecting pipe.

[0023] Furthermore, a cover is connected to the outer wall of the container body, and the cover is provided with an abutment protrusion for abutting the valve structure.

[0024] The beneficial effects of this invention are that, by using the container of this application, not only can the sauce inside the piston-shaped sauce container be completely pushed into the water bottle, but the layout of the sauce outlet and drinking spout of this application can also completely seal the sauce inside the container, effectively extending the shelf life of the sauce and preventing spoilage. This allows for the use of jam with higher nutritional content and better flavor as a drinking medium for bottled beverages. Attached Figure Description

[0025] Figure 1 A cross-sectional structural diagram of an anti-corrosion bottle cap for storing concentrated nutrient sauce provided by the present invention;

[0026] Figure 2 for Figure 1 Enlarged view of point Q;

[0027] Figure 3 This is a schematic diagram of the cross-sectional structure of a preservative bottle cap for storing concentrated nutrient sauce provided by the present invention after being pressed.

[0028] Figure 4 This is a schematic cross-sectional view of the preservative cap for storing concentrated nutrient sauce provided by the present invention during the pressing process.

[0029] Figure 5 A three-dimensional cross-sectional view of an anti-corrosion bottle cap for storing concentrated nutrient sauce provided by the present invention;

[0030] Figure 6 A three-dimensional cross-sectional view of a preservative bottle cap for storing concentrated nutrient sauce, which is a threaded locking mechanism provided by the present invention.

[0031] Figure 7 This is a three-dimensional schematic diagram of the installation of an anti-corrosion bottle cap for storing concentrated nutrient sauce, provided by the present invention.

[0032] Reference numerals: 1. Container body; 11. Limiting part A; 2. Piston; 21. Connecting structure; 22. Limiting part B; 23. Communicating hole; 3. Communicating pipe; 31. Annular boss; 32. Valve structure; 4. First sealing membrane; 5. Second sealing membrane; 51. Inflation area; 6. Locking mechanism; 61. Locking part A; 62. Locking part B; 63. Communicating groove; 7. Sealing ring; 8. Cap; 91. Water bottle; 92. Bottle mouth. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Example 1

[0035] Reference Figure 1 - Figure 7 .

[0036] An anti-corrosion bottle cap for storing concentrated nutrient sauce includes a container body 1 for containing a beverage medium;

[0037] Piston 2 is slidably connected to the inner wall of the container body 1 for squeezing the beverage medium inside the container body 1;

[0038] A connecting pipe 3 extends through both ends of the container body 1, and one section of the connecting pipe 3 is connected to the container body 1;

[0039] The piston 2 is connected to the lower end of the container body 1 via a first sealing membrane 4.

[0040] The piston 2 has a connecting hole 23, through which the connecting pipe 3 passes; and the piston 2 and the connecting pipe 3 are connected by a second sealing membrane 5 to seal the connecting hole 23.

[0041] The diameter of the connecting hole 23 is larger than the diameter of the connecting pipe, and the gap between the two forms a sauce outlet;

[0042] The piston 2 has a connecting structure 21 on its lower end face for connecting to the bottle neck 92 thread.

[0043] The preferred medium for the beverage is sauce or concentrated stock solution, but freeze-dried powder can also be used. This application primarily targets sauces, which can be not only jams but also viscous liquids such as chocolate sauce and milkshakes. Jam, as a mainstream beverage medium, has higher nutritional value and a better taste. The main problem with using sauces or concentrated stock solutions as the medium for bottle-capped beverages is that the container, after connecting to the water bottle 91, forms a sealed space, making it difficult to push the medium into the water bottle 91. To push the sauce out of the container, a piston 2 structure is usually used. However, pushing with piston 2 increases the pressure inside the water bottle 91. Therefore, using piston 2 requires a venting function, which means the container has a vent hole. A container with a vent hole will have reduced sealing performance, making it impossible to preserve the sauce or perform aseptic processing. This is especially important when the medium is jam, as jam is highly susceptible to bacterial growth. Even slight contact with air introduces a small number of bacteria, and the environment inside jam is extremely conducive to bacterial survival. Bacteria multiply rapidly, causing the jam to spoil quickly. The container with the sealing structure of this application does not need to have an exhaust vent, so that the beverage medium is completely sealed inside the container. This allows for better aseptic processing during the production process and ensures that bacteria have difficulty coming into contact with the beverage medium in the finished product.

[0044] In this application, the direction closer to the bottle opening 92 is the bottom, and the opposite direction is the top. In the same part, the side closer to the bottom is the bottom surface, and the side closer to the top is the top surface.

[0045] To address the issues of sauce leakage and difficulty in maintaining a tight seal, this application provides a preservative-resistant bottle cap for storing concentrated nutrient sauce. The cap includes a container body 1 containing a brewing medium. A piston 2 is installed inside the container body 1, with the brewing medium located between the piston 2 and the top surface of the container body 1. The piston 2 has a connecting hole 23 and a connecting structure 21. This application also includes a connecting pipe 3, which serves as both an venting structure and a drinking spout. Users can also directly unscrew the cap and drink directly from the bottle opening 92. The connecting pipe 3 is integrally formed with the container body 1. The top of the container body 1 is completely connected to the circumferential wall of the connecting pipe 3 to ensure a tight seal. The connecting pipe 3 completely penetrates the container body 1 and is inserted into the connecting hole 23. Finally, the piston 2 is connected to the container body 1 via a first sealing membrane 4, and the piston 2 is connected to the connecting pipe 3 via a second sealing membrane 5. When the first sealing membrane 4 and the second sealing membrane 5 are intact, the drinking medium is completely sealed. When the first sealing membrane 4 and the second sealing membrane 5 are broken, the piston 2 and the container body 1 can slide and squeeze the drinking medium. After the second sealing membrane 5 is broken, the drinking medium can enter the water bottle 91 through the connecting hole 23. At the same time, during the process of the drinking medium being squeezed into the water bottle 91, the gas in the water bottle 91 is discharged through the connecting pipe 3 (currently, most mineral water bottles 91 on the market are not completely filled with water, so there is no need to worry about water overflowing when squeezing the drinking medium), thereby reducing the pressure inside the water bottle 91.

[0046] In this embodiment, the sauce outlet is formed between the connecting hole 23 and the connecting pipe 3. The connecting pipe 3 can discharge the gas in the water bottle 91, while the sauce will not come into contact with air and oxidize, thus ensuring that the jam in the container body 1 can be stored for a long time.

[0047] It's worth noting that packaged jams require nitrogen purging and sealing compared to packaged freeze-dried powders to prevent spoilage and oxidation. Therefore, packaged jams have higher requirements for sealing, requiring stronger sealing films and their connections. Consequently, the sealing films for jams are much harder to open than those for freeze-dried powders. Currently, freeze-dried powder bottle cap beverages typically use a pump head above the extrusion device to break the sealing film, allowing the freeze-dried powder to fall into the bottle 91. This means the film is directly punctured by the force of a vertical puncture, making this method of opening the seal quite laborious. Furthermore, the sealing film must not completely detach from the device before falling into the bottle 91, and it needs to open a significant portion towards the bottle 91 to allow the freeze-dried powder to fall naturally. This results in the sealing film adhering to a large number of water droplets, and only a small portion of the film is connected to the device. This creates a cantilever structure, making it very prone to shaking. After unscrewing the cap, the water droplets on the sealing film easily fall off, requiring the user to tear off the water-covered film.

[0048] In this application, the process of connecting the connecting structure 21 to the bottle mouth 92 requires twisting the container body 1. Before the piston 2 abuts against the bottle mouth 92, twisting is very easy, and only a small force can be transmitted through the piston 2 to the first sealing membrane 4 and the second sealing membrane 5. After the piston 2 abuts against the bottle mouth 92, the piston 2 is basically fixedly connected to the water bottle 91. At this time, if twisting continues, most of the force can be transmitted to the first sealing membrane 4 and the second sealing membrane 5, thereby destroying the sealing membrane. The adhesive strength of the sealing membrane is weaker than the structural strength of the sealing membrane itself, and for a person, the force exerted by twisting is easier to apply than the force exerted by pressing the pump head (pressing with the thumb, rather than pressing with the whole palm). Therefore, the structure of this application can destroy the sealing membrane more effortlessly. When the twisting process reaches a point where it changes from difficult to effortless, it means that the sealing membrane has been destroyed, and then the container body 1 can be directly pushed toward the bottle mouth 92 to quickly squeeze out the drinking medium.

[0049] Furthermore, after the sealing membrane of this application is damaged, it does not need to form a large outlet like the prior art to allow the drinking medium to fall naturally. This application only needs to form a small outlet, and then the drinking medium can be squeezed out by the piston 2. Thus, the sealing membrane will not protrude too much and form a cantilever structure to shake off water droplets.

[0050] Another point is that this application can accommodate more beverage medium. Existing technologies can also accommodate a lot of beverage medium, simply by making the container larger. However, this would make the device itself appear quite obtrusive on the water bottle 91, unless the device is unscrewed and the original cap replaced after preparation. In contrast, the volume of the device in this application continuously shrinks during the squeezing of the beverage medium, with the top of the container body 1 gradually approaching the bottle opening 92. Therefore, the container body 1 of this application can be made longer. While it would still appear obtrusive when the device is connected to the bottle opening 92, the gradual approach of the container body 1 to the bottle opening 92 during the squeezing of the beverage medium reduces the protrusion (the connecting pipe 3 moves synchronously with the container body 1). In other words, the device is not obtrusive during drinking.

[0051] During the production process, piston 2 and connecting structure 21 are injection molded, container body 1 and connecting pipe 3 are injection molded, piston 2 is connected to first sealing film 4 and second sealing film 5 in advance, then the container body 1 is filled with drinking medium, nitrogen is filled into the container body 1, and finally piston 2 and container body 1 are fastened together to seal the sealing film.

[0052] Example 2

[0053] Reference Figure 1 - Figure 6 .

[0054] The connecting pipe 3 has an annular boss 31. The side wall of the annular boss 31 fits against the side wall of the connecting hole 23 to form a primary seal, which prevents the jam from flowing out.

[0055] The side of the second sealing membrane 5 connecting the piston 2 and the connecting tube faces the inside of the container body 1. Both the first sealing membrane 4 and the second sealing membrane 5 are connected by adhesive. Adhesive bonding presents the problem of adhesive erosion, especially for acidic jams such as orange and lemon juice jams. Therefore, contact between the jam and the sealing membranes (first sealing membrane 4 and second sealing membrane 5) should be avoided. The first sealing membrane 4 achieves a seal by engaging the outer wall of the piston 2 with the inner wall of the container body 1. In this application, it is assumed that the gap between the piston 2 and the container body 1 is sufficient to prevent jam from flowing in. The second seal requires a separate sealing structure.

[0056] An annular boss 31 can be provided around the connecting pipe 3. The side wall of the annular boss 31 can cooperate with the connecting hole 23 to form a sealing structure similar to that of the piston 2, thus achieving a primary seal.

[0057] Example 3

[0058] Reference Figure 1 - Figure 6 .

[0059] The second sealing membrane 5 has an inflation region 51, which protrudes toward the non-connecting surface of the second sealing membrane 5; the inflation region 51 covers the gap of the primary seal;

[0060] The primary seal allows gas to pass through.

[0061] For many nitrogen-filled canned foods, the sealing film at the bottle opening will bulge and expand, as will the bag of bagged foods, and the packaging will indicate that it is leaking air and should not be eaten.

[0062] This type of product is very small, and the second sealing film 5 is an annular structure with an outer diameter smaller than the bottle mouth 92 of the water bottle 91. Furthermore, the second sealing film 5 is adhered to a flat surface (the end face of the piston 2 and the end face of the annular boss 31). If the second sealing film 5 were still a flat structure, it would be almost impossible for it to bulge significantly. Therefore, in this embodiment, the second sealing film 5 has an inflatable region 51, and the inflatable region 51 itself bulges towards the non-connecting surface of the second sealing film 5. The non-connecting surface refers to the side of the second sealing film 5 that is not coated with adhesive. The primary seal allows gas to pass through. For a butt-fitting sealing structure, maintaining airtightness is inherently difficult; only controlling the fitting precision is needed to prevent jam from passing through while allowing gas to pass through. The inflatable region 51 covers the gap of the primary seal, meaning that the gas inside the container body 1 is connected to the air in the inflatable region 51. Therefore, whether the inflatable region 51 bulges can be used as a basis for determining whether the container body 1 leaks, thereby confirming the food's airtightness and preventing food oxidation and spoilage.

[0063] Meanwhile, the second sealing membrane 5 is located inside the connecting structure 21, and the protruding connecting structure 21 can effectively prevent the second sealing membrane 5 from being punctured.

[0064] Example 4

[0065] Reference Figure 1 - Figure 6 .

[0066] The concentrated jam storage device in this embodiment also includes a locking mechanism 6;

[0067] The locking mechanism 6 includes a locking part A61 disposed in the connecting hole 23 and a locking part B62 disposed in the connecting pipe 3. The locking part A61 and the locking part B62 cooperate to keep the upper end face of the piston 2 in contact with the inner top surface of the container body 1, thereby ensuring the sealing effect on the water bottle 91.

[0068] After the user pushes the jam into the water bottle 91, they need to shake the bottle to mix it. The liquid will inevitably flow through the connecting hole 23 and impact the inner top surface of the container body 1 (at this point, the inner top surface of the container body 1 is already in contact with the end face of the piston 2). The top of the container body 1 gradually moves away from the piston 2. At this point, the second sealing membrane 5 and the first sealing membrane 4 have already ruptured, and the piston 2 and the container body 1 can completely separate. After complete separation, not only will the liquid spill out, but the jam adhering to the end face of the piston 2 will also be difficult to remove. This is obviously something the user does not want to happen. Furthermore, at this point, the device is already acting as a bottle cap to seal the water bottle 91. The water bottle 91 is very easily deformed, and it is inevitable that there will be some collisions and squeezing. The fluidity of the liquid inside the water bottle 91 is much greater than that of the jam. Therefore, the piston 2 structure cannot guarantee the sealing of the liquid inside the water bottle 91.

[0069] In this embodiment, a locking mechanism 6 is added so that after the jam is pushed out, the inner top surface of the container body 1 and the end face of the piston 2 always remain in contact, and the sealing effect on the liquid is increased by the cooperation of the two end faces.

[0070] This embodiment provides two specific locking mechanisms 6.

[0071] I. Reference Figure 6 The locking part A61 is an internal connecting thread, located in the connecting hole 23; the locking part B62 is an external connecting thread, located in the connecting pipe 3. More specifically, the starting point of the external connecting thread is at the intersection of the inner top surface of the connecting pipe 3 and the container body 1, extending towards the piston 2. Only 1-3 turns of the external connecting thread are needed. This is because when the external connecting thread engages with the internal connecting thread, the container body 1 must be rotated to bring its inner top surface and the end face of the piston 2 closer together. Threading is a labor-saving, distance-free method of operation, much more cumbersome than directly pressing the container body 1. Therefore, the stroke of the thread engagement should be minimized to make it easier for the user to push out the remaining jam. Furthermore, the internal connecting thread has the same thread direction as the connecting structure 21. This means that during the tightening process, the locking mechanism 6 can simultaneously tighten the connecting structure 21 and the bottle neck 92 threads, thus avoiding the problem of liquid spillage during subsequent shaking if the initial connection between the connecting structure 21 and the bottle neck 92 is not tight.

[0072] The internal connecting thread and / or the external connecting thread are provided with a connecting groove 63. The connecting groove 63 cuts off the thread along the axial direction of the connecting pipe 3 to prevent the jam from being blocked when the internal connecting thread and the external connecting thread are engaged. The jam can flow out through the connecting groove 63.

[0073] II. Reference Figure 4 and 5 The locking part A61 is an elastic protrusion A provided in the communicating hole 23, and the locking part B62 is an elastic protrusion B provided in the communicating pipe 3;

[0074] The elastic protrusions A and B form an inclined surface fit, converting the horizontal elastic force into a vertical elastic force. Only one of the elastic protrusions A and B needs to be elastic; for example, the elastic protrusion A located in the connecting hole 23 is elastic, while the elastic protrusion B does not need to be elastic. The elastic protrusion A can be a semi-circular arc with both ends connected to the sidewall of the connecting hole 23, and the middle part is elastic. The elastic protrusion B can also be a semi-circular structure (or have the same structure as elastic protrusion A). As the container body 1 moves relative to the piston 2, elastic protrusions A and B come into contact. Initially, the contact position is on one side of the horizontal diameter of elastic protrusion A. At this time, the elastic force of elastic protrusion A on elastic protrusion B will cause the inner top surface of container body 1 and the end face of piston 2 to move away from each other. As the movement continues, elastic protrusion A deforms until the center of elastic protrusion B enters one side of the horizontal diameter of elastic protrusion A. At this time, the elastic force will cause the inner top surface of container body 1 and the end face of piston 2 to move closer together. After the elastic force reversal is completed, the inner top surface of container body 1 and the end face of piston 2 should be in contact. Therefore, it is necessary to pay attention to controlling the position of elastic protrusions A and B in the height direction.

[0075] Furthermore, based on the locking structure in the form of an elastic protrusion, a limiting part A11 is provided on the inner top surface of the container body 1, and a limiting part B22 is provided on the top surface of the piston 2. The limiting part B22 is coupled with the limiting part A11 to prevent the piston 2 from rotating relative to the container body 1. Specifically, the limiting part B22 can be set as a protrusion, and the limiting part A11 can be set as a groove. When the limiting part B22 enters the limiting part A11, both will prevent the piston 2 and the container body 1 from rotating relative to each other. Thus, rotating the container body 1 can drive the piston 2 to rotate, that is, loosen or tighten the connection between the connecting structure 21 and the bottle mouth 92. The user can easily unscrew the connecting structure 21 of the bottle mouth 92 to use the bottle mouth 92 as a drinking spout.

[0076] Example 5

[0077] Piston 2 and container body 1 do not necessarily have to be cylindrical; they can also be other polygonal structures, such as hexagonal prisms. When set in a prism shape, piston 2 and container body 1 cannot rotate relative to each other. Users can easily unscrew the connecting structure 21 of bottle opening 92 to use bottle opening 92 as a drinking spout.

[0078] Example 6

[0079] A sealing ring 7 is provided on the inner top surface of the container body 1 or the upper end surface of the piston 2. When the upper end surface of the piston 2 abuts against the inner top surface of the container body 1, the upper end surface of the piston 2 compresses the sealing ring 7.

[0080] Example 7

[0081] The connecting pipe 3 is provided with a valve structure 32 inside;

[0082] The outer wall of the container body 1 is connected to a cover 8, and the cover 8 is provided with an abutment protrusion for abutting the valve structure 32.

[0083] The valve structure 32 is a common feature in sports drinks and sports water bottles (especially in road cycling). It prevents liquid from dripping, and when the user squeezes the bottle, the liquid can flow out through the valve structure 32, making it convenient for one-handed drinking. A lid 8 is attached to the outer wall of the container body 1. The lid 8 has an abutment protrusion that abuts against the valve structure 32, preventing liquid from flowing out when the user does not wish to drink. The lid 8 also serves to prevent dust and dirt accumulation.

[0084] The device in this embodiment is geared towards sports, and can replace plain jam with sports supplements such as energy gels.

[0085] In the description of the embodiments of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "center," "top," "bottom," "top," "bottom," "inner," "outer," "inner side," and "outer side," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. "Inner side" refers to the interior or enclosed area or space. "Outer perimeter" refers to the area surrounding a specific component or specific area.

[0086] In the description of embodiments of the present invention, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise stated, "a plurality of" means two or more.

[0087] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "assembly" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0088] In the description of embodiments of the present invention, specific features, structures, materials or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0089] In the description of the embodiments of the present invention, it should be understood that "-" and "" represent a range between two values, and this range includes the endpoints. For example, "AB" represents a range greater than or equal to A and less than or equal to B. "A~B" represents a range greater than or equal to A and less than or equal to B.

[0090] In the description of embodiments of the present invention, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character "" generally indicates that the preceding and following related objects have an "or" relationship.

[0091] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A preservative-preservative bottle cap for storing concentrated nutrient sauce, characterized in that, Includes the container body, used to hold the beverage preparation medium; A piston is slidably connected to the inner wall of the container body and is used to squeeze the beverage medium inside the container body; A connecting pipe extends through both ends of the container body, and one section of the connecting pipe is connected to the container body; The piston is connected to the lower end of the container body by a first sealing membrane; The piston has a connecting hole, and the connecting pipe passes through the connecting hole; The diameter of the connecting hole is larger than the diameter of the connecting pipe, and the gap between the two forms a sauce outlet. The piston is connected to the connecting pipe through a second sealing membrane to seal the connecting hole. The lower end face of the piston has a connecting structure for connecting to the bottle neck thread; The connecting pipe has an annular boss, and the sidewall of the annular boss fits against the sidewall of the connecting hole to form a primary seal, which prevents the jam from flowing out. The second sealing membrane has an inflatable area that bulges toward the non-connecting surface of the second sealing membrane; the inflatable area covers the gap of the primary seal. The primary seal allows gas to pass through; A sealing ring is provided on the inner top surface of the container body or the upper end surface of the piston. When the upper end surface of the piston abuts against the inner top surface of the container body, the upper end surface of the piston squeezes the sealing ring. The connecting pipe is equipped with a valve structure.

2. The preservative-preservative bottle cap for storing concentrated nutrient sauce according to claim 1, characterized in that, It also includes a locking mechanism; The locking mechanism includes a locking part A disposed in the connecting hole and a locking part B disposed in the connecting pipe. The locking part A and the locking part B cooperate to keep the upper end face of the piston in contact with the inner top surface of the container body, thereby ensuring the sealing effect on the water bottle.

3. The preservative-preservative bottle cap for storing concentrated nutrient sauce according to claim 2, characterized in that, The locking part A is an internal connecting thread provided in the connecting hole, and the locking part B is an external connecting thread provided in the connecting pipe; The locking mechanism is further provided with a connecting groove, which cuts off the internal connecting thread and / or the external connecting thread along the axial direction of the connecting pipe.

4. The preservative-preserving bottle cap for storing concentrated nutrient sauce according to claim 2, characterized in that, The locking part A is an elastic protrusion A disposed in the communicating hole, and the locking part B is an elastic protrusion B disposed in the communicating pipe; The elastic protrusion A and the elastic protrusion B form an inclined surface fit, which converts the horizontal elastic force into the vertical elastic force.

5. The preservative-preservative bottle cap for storing concentrated nutrient sauce according to claim 4, characterized in that, The inner top surface of the container body is provided with a limiting part A, and the top surface of the piston is provided with a limiting part B. The limiting part B is coupled with the limiting part A to prevent the piston from rotating relative to the container body.

6. The preservative-preservative bottle cap for storing concentrated nutrient sauce according to claim 1, characterized in that, The outer wall of the container body is connected to a cover, and the cover has an abutment protrusion for abutting the valve structure.

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