A sealing device for secondary storage of baijiu
By using the sealing components and gas supply components of the secondary preservation and sealing device for baijiu, and by utilizing the expansion bladder to fit tightly against the bottle mouth, the problem of poor sealing of opened baijiu is solved, thus achieving effective preservation of baijiu and maintaining its flavor and quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZUI LIUPAN (YINCHUAN) FOOD R&D CO LTD
- Filing Date
- 2025-07-30
- Publication Date
- 2026-06-16
Smart Images

Figure CN224361700U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of secondary preservation technology of liquor, specifically relating to a sealing device for secondary preservation of liquor. Background Technology
[0002] Baijiu, which holds an important place in traditional Chinese liquor culture, is crucial for maintaining its original flavor and quality after opening. However, current methods for preserving opened baijiu on the market are clearly inadequate. Consumers often reseal the bottle with the original cap or a regular stopper, but this method provides limited sealing. Especially after repeated opening and closing, the fit between the cap and the bottle neck can loosen, particularly in threaded connections. Excessive stress or other factors can cause the threads to wear and become unable to engage, preventing the connection from tightening properly and leading to stripped threads. This allows air to enter the bottle, causing oxidation and a decline in taste. Furthermore, the lack of effective sealing measures allows alcohol in the baijiu to easily escape into the air, resulting in "evaporation" or "alcohol loss." Summary of the Invention
[0003] Based on this, this application provides a secondary storage and sealing device for baijiu (Chinese liquor) to solve the technical problem that the lack of effective sealing measures makes it easy for alcohol in baijiu to escape into the air, causing the phenomenon of "liquor escaping".
[0004] The technical solution to the above-mentioned technical problems in this application is as follows:
[0005] A secondary preservation and sealing device for baijiu (Chinese liquor), comprising:
[0006] Sealing assembly: The sealing assembly includes a cap for sealing with the bottle neck, an expansion bladder is disposed within the cap, and an air inlet is disposed on the top wall of the cap, the air inlet communicating with the expansion bladder; and
[0007] Air supply component: The air supply component is connected to the air inlet and can inflate the expansion bladder through the air inlet, causing the expansion bladder to expand.
[0008] Preferably, a support member is provided inside the expansion bladder, and the air intake member passes through the support member and communicates with the expansion bladder.
[0009] Preferably, a sealing element is provided on the top wall of the cap, and the sealing element is aligned with the bottle mouth.
[0010] Preferably, a claw is provided on the side wall of the cap near the opening end, and a locking mechanism is provided on the outer sleeve of the claw. The locking mechanism is used to retract the claw inward and lock the claw to the bottle mouth.
[0011] Preferably, the inner wall of the claw is provided with a padding layer.
[0012] Preferably, the padding layer is provided with wavy anti-slip protrusions.
[0013] Preferably, the air intake component includes an air intake pipe, and a check valve is provided at one end of the air intake pipe.
[0014] Preferably, the air intake component further includes a telescopic portion, which is disposed in the middle of the air intake pipe.
[0015] Preferably, the opening of the expansion bladder is connected to the top wall of the cover body, and the cover body is provided with a gas release device, which is connected to the expansion bladder to allow or prevent gas in the expansion bladder from leaking outward.
[0016] Preferably, the air supply component includes an air bladder, one end of which is sealed to the outer side of the top wall of the cover to form an air bladder cavity. The air bladder is provided with an air inlet. When the air bladder is pressed, the air in the air bladder cavity enters the expansion bladder through the air inlet, causing the expansion bladder to inflate.
[0017] The technical solution adopted in this application can achieve the following beneficial effects:
[0018] This application discloses a secondary preservation and sealing device for baijiu (Chinese liquor), including a sealing assembly. The sealing assembly includes a cap for sealing the bottle opening, an expansion bladder inside the cap, and an air inlet on the top wall of the cap, which communicates with the expansion bladder. It also includes an air supply assembly for inflating the expansion bladder through the air inlet, thereby sealing the bottle opening and preventing alcohol from escaping into the air, thus avoiding "alcohol loss" and preserving the rich aroma and complex flavor profile of the baijiu. Attached Figure Description
[0019] Figure 1 This is a cross-sectional schematic diagram of the secondary preservation and sealing device for baijiu in Example 2;
[0020] Figure 2 This is a cross-sectional schematic diagram of the secondary preservation and sealing device for baijiu in Example 3;
[0021] Figure 3 This is a cross-sectional schematic diagram of the secondary preservation and sealing device for baijiu in Example 4;
[0022] Figure 4 A front view of the sealing device for secondary preservation of baijiu (Chinese liquor).
[0023] In the diagram: 110 cap, 111 venting element, 112 sealing element, 113 claw, 114 locking mechanism, 115 padding, 116 anti-slip protrusion, 120 expansion bladder, 121 support element, 130 air inlet element, 131 check valve, 132 telescopic part, 133 air inlet pipe, 200 bottle mouth, 300 air delivery assembly, 310 air bladder, 311 air bladder cavity, 312 air inlet end. Detailed Implementation
[0024] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this application.
[0025] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," "top," "bottom," "end," "top," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items. Example 1
[0027] Please see Figures 1 to 4 In one specific embodiment of this application, a secondary preservation and sealing device for baijiu (hereinafter referred to as the sealing device) includes a sealing component and an air supply component 300:
[0028] The sealing assembly includes a cap 110 for sealing with the bottle opening 200, an expansion bladder 120 inside the cap 110, an air inlet 130 on the top wall of the cap 110, the air inlet 130 communicating with the expansion bladder 120; and an air supply assembly 300 for inflating the expansion bladder 120 by supplying air to it through the air inlet 130.
[0029] The sealing assembly, to ensure the airtightness of the bottle opening 200, includes a cap 110 that covers the bottle opening 200 for a tight seal. To enhance the sealing effect, an expansion bladder 120 is specially provided inside the cap 110, which is initially in a non-inflated state. An air inlet 130 is provided on the top wall of the cap 110, which communicates directly with the interior of the expansion bladder 120, allowing external gas to enter the expansion bladder 120 and thus controlling its expansion. The gas supply assembly 300 can... The air supply component 300 can be any of the following: a manual pump, an electric pump, an air pump, a compression balloon, or other forms of air source. It can be selected according to different environments and user needs. The air supply component 300 mainly introduces external gas into the expansion bladder 120 through the air inlet 130. When it is necessary to seal the bottle opening 200, the user inflates the bottle opening 200 through the air supply component 300. The gas is introduced into the expansion bladder 120 through the air inlet 130, causing the expansion bladder 120 to expand, thereby achieving a tight seal on the bottle opening 200. This ensures that the inside of the bottle is sealed and prevents external substances from entering the bottle, maintaining a stable environment inside the bottle.
[0030] In a specific embodiment, for example, when a user needs to preserve liquor for a second time, the user can choose a sealing device that matches the bottle opening according to their needs, that is, a sealing device with expansion bladders of different sizes can be selected according to the thickness of the inner side of the bottle opening. In use, first place the sealing device on the bottle neck 200, so that the cap 110 is closed with the bottle neck 200. At this time, the expansion bladder 120 is placed inside the bottle neck. Then, through the air supply component 300 (preferably the compression bladder), outside air is forced into the expansion bladder 120 through the air inlet 130. The expansion bladder 120 expands inside the bottle neck. When gas is injected into the expansion bladder 120 through the compression bladder, the air pressure inside the expansion bladder 120 gradually increases until the expansion bladder 120 is in full contact with the inner wall of the bottle neck 200, thereby achieving an effective seal on the bottle neck 200. When the user needs to open the bottle, the connection between the compression bladder and the air inlet 130 can be disconnected, allowing the gas inside the expansion bladder 120 to flow out through the air inlet 130. After the expansion bladder 120 contracts, the sealing device can be removed from the bottle neck, thus achieving the purpose of releasing the bottle seal.
[0031] It should be noted that, firstly, the compression balloon used in this application is a commonly available commercially available air-inflating compression balloon, which is inflated by compression. Each end of the compression balloon has a valve. One valve is for air intake, acting as a one-way valve to allow air to enter the compression balloon without backflow; the other valve is for air exhaust (or venting valve). When the compression balloon is compressed, the air entering the compression balloon passes through this valve and then smoothly enters the expansion bladder 120 via the air intake component 130. This type of compression balloon ensures that air flows in only one direction, thereby achieving inflation of the expansion bladder. Secondly, the expansion bladder 120 is made of an elastic material with good elasticity and flexibility, such as silicone, rubber (e.g., natural or synthetic rubber), polyurethane, etc. The wall thickness of the expansion bladder 120 needs to be moderate; it cannot be too thin to avoid easy breakage, nor too thick to avoid affecting its expansion performance.
[0032] The aforementioned bottle sealing device, by inflating the expansion bladder 120, causes it to expand and tightly seal against the inside of the bottle opening 200, forming a tight barrier that effectively prevents the alcohol in the liquor from evaporating and dissipating into the air, thus avoiding the phenomenon of "liquor evaporation." Simultaneously, because liquor typically possesses complex aromas and diverse flavor profiles, which often depend on various volatile compounds in the liquor, this device minimizes the loss of these components, allowing users to still experience the rich aroma and complex flavor profile of the liquor when opening the bottle.
[0033] Furthermore, a support member 121 is provided inside the expansion bladder 120, and the air intake member 130 passes through the support member 121 and communicates with the expansion bladder 120. Specifically, the support member 121 is preferably made of an elastic material, such as silicone or rubber, and silicone is preferred in this application. The air intake member 130 passes through the support member 121 and communicates directly with the expansion bladder 120. The support member 121 is located inside the expansion bladder 120. When the expansion bladder 120 is not inflated, the support member 121 fills the internal space of the expansion bladder 120. When gas needs to enter the expansion bladder 120, since the support member 121 is provided inside the expansion bladder 120, and the support member 121 itself occupies a large space, the amount of air required for the expansion bladder 120 to fully inflate is reduced, thereby improving the air intake efficiency.
[0034] To further enhance the sealing effect of the bottle opening 200, a sealing element 112 is provided on the top wall of the cap 110, and the sealing element 112 is aligned with the bottle opening 200. The sealing element 112 can be a sealing ring or a sealing gasket; the sealing element 112 is tightly attached to the top wall inside the cap 110, and when the cap 110 is closed with the bottle opening 200, the sealing element 112 forms a tight contact with the bottle opening 200, thereby effectively preventing outside air from entering the bottle or leakage of the contents.
[0035] Because some wine bottles have inconsistent diameters between the bottle neck 200 and the bottle mouth 200, the cap 110 cannot be tightly fitted onto the bottle mouth. To further ensure a tight seal on the bottle mouth 200, the cap 110 has several claws 113 arranged in a ring around the opening on its side wall near the opening. A locking mechanism 114 is fitted over each claw 113, causing the claws 113 to retract inwards and lock them to the bottle mouth 200. Specifically, the locking mechanism 114 causes the claws 113 to retract inwards, allowing them to fit tightly against the outer wall of the bottle neck, thereby further eliminating gaps between the cap 110 and the bottle mouth 200, preventing relative movement between them, and achieving a seal between the cap 110 and the bottle mouth 200. Specifically, firstly, after the expansion bladder 120 expands inside the bottle, the bottle is completely sealed. Then, the cap 110 is locked. The locking mechanism 114 is preferably a clamp, which is sleeved on the outside of the claw 113. Tightening the nut on the clamp can cause the clamp to compress the claw inward and achieve a locking state.
[0036] To further enhance the locking effect between the claw 113 and the bottle, ensuring sealing and stability, a pad 115 is provided on the inner wall of the claw 113. The pad 115 is made of a material with good frictional properties and a certain degree of ductility; materials such as food-grade silicone, polyurethane, and Teflon can be selected, with food-grade silicone being preferred in this application. When the claw 113 contracts inward to compress the pad 115, the pad 115 deforms and adheres tightly to the outside of the bottle neck. The pad 115, to a certain extent, fills the gap between the claw 113 and the bottle neck and compensates for surface unevenness, thereby allowing the claw 113 to lock more tightly and securely onto the bottle, effectively preventing leakage or accidental loosening.
[0037] To further ensure the sealing performance of the claw 113 during use, the padding layer 115 is provided with wavy anti-slip protrusions 116. These wavy anti-slip protrusions 116 increase the tightness between the claw 113 and the bottleneck contact surface during the contraction of the claw 113. Specifically, when the claw 113 is subjected to pressure, the wavy anti-slip protrusions 116 undergo moderate elastic deformation, filling irregular portions between the contact surfaces and further ensuring a sealing effect. Example 2
[0038] Based on Example 1, when the connection between the gas supply assembly 300 (such as the compression balloon) and the air inlet 130 is disconnected (when the compression balloon is used to inflate another sealing device), in order to prevent the gas in the expansion bladder 120 from flowing backward through the air inlet 130 when the sealing device is sealing the wine bottle, the air inlet 130 includes an air inlet pipe 133, and a check valve 131 is provided at one end of the air inlet pipe 133. The check valve 131 can be installed at either end of the intake pipe 133, but attention must be paid to the direction of installation. The installation direction must ensure that the function of the check valve 131 is to prevent the backflow of gas in the expansion bladder 120. In this design, the check valve 131 is preferably installed at the end near the top of the cover 110. When the air supply assembly 300 injects gas into the expansion bladder 120, if there is no effective backflow prevention mechanism, due to the pressure difference between the expansion bladder 120 and the outside, the gas in the expansion bladder 120 may flow out through the intake component 130 in reverse, causing the expansion bladder 120 to fail to maintain its proper expansion state. Therefore, installing the check valve 131 on the intake pipe 133 can effectively prevent this backflow. The flow of gas ensures that the gas can only enter the expansion bladder 120 from the external environment in one direction. It also immediately closes the channel after the gas supply stops, preventing the gas in the expansion bladder 120 from escaping. This ensures that the expansion bladder 120 maintains a stable pressure level throughout the expansion process, thereby reliably sealing the bottle opening 200. When gas needs to be released, it can be done by operating the check valve 131. For example, the check valve 131 can be a valve with a manual venting function, such as an airtight core or a balloon check valve. This application prefers an airtight core. When releasing gas, find the venting point on the valve and gently press the valve core at that point with a small stick to release the gas inside the expansion bladder 120.
[0039] To accommodate bottles with necks of varying lengths, the air inlet 130 also includes a telescopic section 132, which is located in the middle of the air inlet pipe 133. This telescopic section 132's location in the middle of the air inlet pipe 133 makes it easier for the user to adjust the length of the air inlet pipe 133. If the bottle neck is short, the user only needs to keep the telescopic section 132 in its initial state, allowing the expansion bladder 120 to retract to the bottle neck 200 position, ensuring the air bladder effectively seals the neck. For bottles with longer necks, the telescopic section 132 can be extended, allowing the expansion bladder 120 to be positioned lower on the neck before expansion. This telescopic air inlet 130 can flexibly adapt to various bottle shapes and minimize alcohol evaporation by reducing the evaporation space above the liquor, thus preserving the original flavor and quality of the liquor. The telescopic section 132 can be either a corrugated pipe or a telescopic tube; the corrugated pipe has a certain resistance to deformation, even when extending towards the expansion bladder. When gas is supplied at 120, the bellows will not expand, thus maintaining its telescopic function. The bellows is more flexible and can easily adapt to bottle necks of different lengths. It can also maintain good sealing when compressed or stretched. When the expansion bladder 120 expands inside the bottle, because the expansion bladder 120 is made of a material with good elasticity and flexibility, it can provide a certain friction when it contacts the inner wall of the bottle, which helps to fix the position of the expansion bladder and prevent it from sliding or shifting. Therefore, it will not affect the telescopic length of the telescopic part 132. Compared with the bellows, the telescopic tube is usually composed of two or more tube segments. Its structure is simple, but its flexibility in length is weak. In addition, the sealing fit between the tubes is required to be high during the telescopic process. This application prefers the bellows. For example, before the cap 110 is closed to the bottle neck 200, the length of the telescopic part 132 needs to be adjusted first. By stretching or shortening, the expansion bladder 120 is placed in the appropriate position to ensure that the expansion bladder 120 can reach the optimal position inside the bottle. After adjustment, the cap 110 is closed to the bottle neck 200, and then the expansion bladder 120 is expanded to ensure that the expansion bladder 120 is in the optimal position inside the bottle. Example 3
[0040] In Embodiments 1 and 2, the gas delivery assembly 300 (such as a compression balloon) requires frequent disassembly, which can easily cause damage to the airtightness. Therefore, in this embodiment, to avoid this defect, the opening of the expansion bladder 120 is connected to the top wall inside the cover 110. The cover 110 is provided with a gas release component 111, which is connected to the expansion bladder 120 to allow or prevent the gas inside the expansion bladder 120 from leaking outward. The cap 110 has a latch fixedly installed on the top wall inside the cap body 110 around the air inlet 130. After the opening of the expansion bladder 120 is fitted onto the latch, the expansion bladder 120 is fixed to the latch by a clamp, so that the expansion bladder 120 can form an effective seal at the bottle mouth 200. The cap 110 is also provided with a gas release component 111, which is connected to the expansion bladder 120. It is used to conveniently release the gas in the expansion bladder 120 when needed, so that the expansion bladder 120 contracts and releases the seal on the bottle mouth 200. That is, when the bottle needs to be sealed, the air supply component 300 inflates the expansion bladder 120. At this time, the gas release component 111 is in a closed state, which can prevent the gas in the expansion bladder 120 from leaking out. When the bottle needs to be opened, the gas release component 111 is in an open state, which can release the gas in the expansion bladder 120 out. The gas release element 111 can be a gas release valve, which can be manually operated, such as by rotating or pressing to open or close the gas passage; or it can be a tube as the gas release element 111, which can be directly connected to the expansion bladder 120 to achieve closure. Simply bend the tube and tie it tightly to prevent gas flow; conversely, if you want to open it to release gas, you need to untie the tied part and straighten the tube as much as possible to achieve the open state. Example 4
[0041] Please refer to Figure 3 To facilitate the delivery of air into the expansion bladder 120, the air delivery component 300 and the sealing component are combined into one unit. The air delivery component 300 includes an air bladder 310. One end of the air bladder 310 is sealed to the outer side of the top wall of the cover 110 to form an air bladder cavity 311. The air inlet 130 communicates with the air bladder cavity 311. The air bladder 310 is provided with an air inlet end 312. When the air bladder 310 is pressed, the air in the air bladder cavity 311 enters the expansion bladder 120 through the air inlet 130, causing the expansion bladder 120 to inflate. When the airbag 310 is pressed, the air in the airbag cavity 311 enters the expansion bladder 120 through the air inlet 130. When the airbag 310 is released, the outside air is drawn into the airbag cavity 311 through the air inlet 312, thus forming a one-way circulation of air entering the expansion bladder 120 from the outside. After repeated pressing, the expansion bladder 120 gradually expands.
[0042] The above-described embodiments merely illustrate the device deployment method of this application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent application. It should be noted that for those skilled in the art, several adjustments and improvements can be made without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.
Claims
1. A sealing device for secondary preservation of baijiu (Chinese liquor), characterized in that, include Sealing assembly: The sealing assembly includes a cap for sealing with the bottle neck, an expansion bladder is disposed within the cap, and an air inlet is disposed on the top wall of the cap, the air inlet communicating with the expansion bladder; and Air supply component: The air supply component is connected to the air inlet and can inflate the expansion bladder through the air inlet, causing the expansion bladder to expand.
2. The secondary preservation and sealing device for baijiu as described in claim 1, characterized in that, A support member is provided inside the expansion bladder, and the air intake member passes through the support member and communicates with the expansion bladder.
3. The secondary preservation and sealing device for baijiu as described in claim 1, characterized in that, A sealing element is provided on the top wall of the cap, and the sealing element is aligned with the bottle mouth.
4. The secondary preservation and sealing device for baijiu as described in claim 1, characterized in that, A claw is provided on the side wall of the cap near the opening end. A locking mechanism is provided on the outer sleeve of the claw. The locking mechanism is used to retract the claw inward and lock the claw to the bottle mouth.
5. The secondary preservation and sealing device for baijiu as described in claim 4, characterized in that, The inner wall of the claw is provided with a padding layer.
6. The secondary preservation and sealing device for baijiu as described in claim 5, characterized in that, The padding layer is provided with wavy anti-slip protrusions.
7. The secondary preservation and sealing device for baijiu as described in claim 1, characterized in that, The air intake component includes an air intake pipe, and a check valve is provided at one end of the air intake pipe.
8. The secondary preservation and sealing device for baijiu as described in claim 7, characterized in that, The air intake component also includes a telescopic part, which is disposed in the middle of the air intake pipe.
9. The secondary preservation and sealing device for baijiu as described in claim 7, characterized in that, The opening of the expansion bladder is connected to the top wall of the cover body. The cover body is provided with a gas release device, which is connected to the expansion bladder to allow or prevent gas inside the expansion bladder from leaking out.
10. The secondary preservation and sealing device for baijiu (Chinese liquor) as described in any one of claims 7 to 9, characterized in that, The air supply assembly includes an air bladder, one end of which is sealed to the outer side of the top wall of the cover to form an air bladder cavity. The air inlet is connected to the air bladder cavity. The air bladder is provided with an air inlet end. When the air bladder is pressed, the air in the air bladder cavity enters the expansion bladder through the air inlet, causing the expansion bladder to expand.