A sealing and ammonia-filling device for the bottle mouth of a sauce-flavored liquor.

By using a nitrogen-filling device during the bottling process of Maotai-flavor liquor, a seal is formed using a hydraulic cylinder and nitrogen gas, solving the problem of long contact time between liquor and air, achieving a fast and effective seal, and ensuring the quality of liquor.

CN224941420UActive Publication Date: 2026-11-06CENTENNIAL CHISHUI WINE CO LTD
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Patent Information

Application Number
CN202522191214.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-16
Publication Date
2026-11-06
Estimated Expiration
2035-10-16

AI Technical Summary

Technical Problem

Traditional sealing methods result in prolonged contact time between Maotai-flavor liquor and air, affecting its quality. Furthermore, the sealing process is complex and inefficient.

Method used

A nitrogen-filling device is used, which pushes the bottle stopper with a hydraulic cylinder and uses nitrogen to form a seal. Combined with negative pressure, it achieves rapid sealing and ensures that the liquor is isolated from the air.

Benefits of technology

It effectively reduces the time that baijiu is exposed to air, improves sealing efficiency, protects the quality of baijiu, and provides additional protection by retaining nitrogen.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model belongs to the technical field of bottling technology for Maotai-flavor liquor, specifically relating to a nitrogen-filling device for sealing the bottle neck of Maotai-flavor liquor. It includes a nitrogen-filling device comprising a base and a frame. The base holds the liquor bottle, and the frame houses a hydraulic cylinder and a nitrogen-filling assembly. The nitrogen-filling assembly includes a circular main body with a circular channel inside. A pusher block slidably connects to the channel on the piston rod of the hydraulic cylinder. A bottle stopper is located below the pusher block within the channel. The diameter of the channel is the same as the diameter of the liquor bottle neck. The main body contains a first inlet pipe for introducing nitrogen and an outlet pipe for discharging nitrogen, both connected to the channel. An inlet for inserting the bottle stopper is located below the pusher plate on the main body. This solution allows air to be expelled from the bottle before bottling by introducing nitrogen, preventing the Maotai-flavor liquor from being exposed to air for an extended period, thus avoiding any impact on its quality.
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Description

Technical Field

[0001] This utility model belongs to the field of bottling technology for sauce-flavored liquor, specifically relating to a sealing and ammonia-filling device for the bottle mouth of sauce-flavored liquor packaging. Background Technology

[0002] Baijiu is a unique distilled spirit from China, one of the world's eight major distilled spirits. It is made from starch or sugary raw materials that have been fermented and then distilled. Also known as shaojiu, laobaigan, shaodaozi, etc., it was officially named baijiu after the founding of the People's Republic of China. The sauce-aroma type of baijiu, also called Maotai-aroma type, is represented by Maotai, a renowned liquor both domestically and internationally. It belongs to the daqu (large-grain) liquor category, characterized by its prominent sauce aroma, elegant and delicate flavor, mellow body, long aftertaste, clear and transparent appearance, and slightly yellow color.

[0003] In the aging process of baijiu (Chinese liquor), bottling and sealing are unavoidable. The traditional sealing method involves covering the jar opening with several layers of kraft paper, tying it tightly along the neck with rope, and then applying cellar mud to the surface for a secondary seal. This process requires that the kraft paper be taut and the rope tied tightly; otherwise, the seal will fail. Because the rope will naturally loosen after being pulled taut, sealing is difficult and often requires re-tying. The sealing process is also lengthy, resulting in prolonged contact with air, which negatively impacts the quality of the sauce-aroma baijiu. Utility Model Content

[0004] This invention provides a sealing and ammonia-filling device for the bottle opening of Maotai-flavor liquor, which can solve the problem that the quality of Maotai-flavor liquor is affected by the long contact time with air during bottling.

[0005] To achieve the above objectives, this solution provides a sealing and ammonia-filling device for the bottle mouth of a sauce-flavored liquor, including a nitrogen-filling device. The nitrogen-filling device includes a base and a frame. The base is used to place the liquor bottle. The frame is equipped with a hydraulic cylinder and a nitrogen-filling assembly. The nitrogen-filling assembly includes a circular main body with a circular channel inside. The piston rod of the hydraulic cylinder is equipped with a push block that is slidably connected to the channel. A bottle stopper is provided below the push block inside the channel. The diameter of the channel is the same as the diameter of the liquor bottle mouth. The main body is provided with a first inlet pipe for introducing nitrogen gas and an outlet pipe for discharging nitrogen gas. Both the first inlet pipe and the outlet pipe are connected to the channel. The main body is provided with an inlet for inserting a bottle stopper. The inlet is located below the push plate.

[0006] The principle of this solution is as follows: The mouth of a liquor bottle filled with baijiu is placed in the channel. The bottle stopper is inserted into the main body from the inlet. Then, the piston rod of the hydraulic cylinder pushes the bottle stopper downward through the push block, thereby creating a seal in the channel. At the same time, nitrogen gas enters from the first inlet pipe and exits from the outlet pipe, thus expelling the air in the channel and filling the sealed channel with nitrogen. Then, the first inlet pipe is closed, and the outlet pipe is connected to a fan to continue evacuating air, creating a negative pressure in the channel. The hydraulic cylinder stops moving, and the negative pressure causes the bottle stopper to continue moving downward to seal the bottle mouth. After sealing, the piston rod of the hydraulic cylinder retracts, causing the main body to move upward and leave the liquor bottle, thus sealing the next liquor bottle.

[0007] The beneficial effects of this plan are: (1) This method introduces nitrogen gas before bottling to expel the air inside the bottle, thus avoiding the long contact time between the sauce-flavored liquor and the air, which would affect the quality.

[0008] (2) This solution uses negative pressure to move the bottle stopper downwards during bottle sealing, thereby achieving rapid sealing and improving work efficiency.

[0009] (3) Even if the nitrogen is extracted at the end, nitrogen will still remain in the bottle to protect the liquor.

[0010] Furthermore, the base is provided with a groove for placing a liquor bottle.

[0011] Beneficial effect: Placing the liquor bottle in the groove for positioning prevents the bottle from moving during the filling process and causing filling failure.

[0012] Furthermore, the channel is equipped with a limiting block to prevent the push block from sliding out.

[0013] Beneficial effect: The push block will not slip out of the channel when it rises.

[0014] Furthermore, the lower end of the main body is provided with a boss, the inner diameter of which matches the outer diameter of the bottle mouth.

[0015] Beneficial effect: The protrusion of the main body is directly fitted onto the bottle mouth, thereby making the bottle mouth located within the channel.

[0016] Furthermore, the first air inlet pipe is connected to a nitrogen filling cylinder, and the nitrogen filling cylinder is equipped with a valve.

[0017] Beneficial effect: Nitrogen filling cylinders can be closed and opened via valves.

[0018] Furthermore, the exhaust pipe is connected to the exhaust fan.

[0019] Beneficial effect: The exhaust fan creates negative pressure by drawing air out of the channel.

[0020] Furthermore, the air outlet of the first air inlet pipe and the air inlet of the air outlet pipe are both located below the inlet.

[0021] Beneficial effect: Even as the stopper moves downwards, it maintains a seal within the channel connecting to the bottle opening.

[0022] Furthermore, it also includes a sealed barrel, the top of which is fitted with a lid. A second air inlet pipe and a wine outlet pipe are sequentially and fixedly connected from left to right to the top of the lid. One end of the second air inlet pipe and the wine outlet pipe both penetrate the lid and extend to the bottom of the lid. One end of the wine outlet pipe is detachably connected to an infusion pipe. A pressure gauge, a valve, and a filter are sequentially installed on the outer wall of the infusion pipe from left to right. The other end of the infusion pipe is connected to a filling machine located on the right side of the sealed barrel. The nitrogen filling device is located on the filling machine.

[0023] Beneficial effects: First, when using this device, the liquor is first transported to the sealed container. Then, the liquor outlet pipe is connected to the liquid delivery pipe. Next, the second air inlet pipe is connected to the external nitrogen pipeline, and nitrogen is introduced into the second air inlet pipe. Then, the pressure is adjusted to 0.01Pa using a pressure reducing valve, and the nitrogen is transported into the sealed container through the second air inlet pipe. Then, the liquor in the sealed container enters the liquor outlet pipe under nitrogen pressure. Next, the liquor enters the liquid delivery pipe, then passes through the filter, and finally flows into the filling machine. The filling machine fills the liquor into the corresponding bottles and then corks and packages them. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the structure of the bottle mouth seal of a liquor bottle according to an embodiment of the present utility model; Figure 3 This is an embodiment of the present utility model. Figure 2 Enlarged structural diagram at point A; Figure 4 This is a structural schematic diagram of the appearance of the nitrogen filling device according to an embodiment of the present invention. Detailed Implementation

[0025] The following detailed description illustrates the specific implementation method: The markings in the accompanying drawings include: 1. Base; 2. Frame; 3. Hydraulic cylinder; 4. Main body; 5. Channel; 6. Push block; 7. Bottle stopper; 8. First air inlet pipe; 9. Air outlet pipe; 10. Limiting block; 11. Liquor bottle; 12. Boss; 13. Sealing barrel; 14. Second air inlet pipe; 15. Infusion pipe; 16. Pressure gauge; 17. Valve; 18. Filter; 19. Filling machine; 20. Inlet.

[0026] As attached Figure 1 As shown, A sealing and ammonia-filling device for the bottle mouth of a sauce-flavored liquor includes a sealing barrel 13. A barrel cover is installed on the top of the sealing barrel 13. A second air inlet pipe 14 and a liquor outlet pipe are sequentially and fixedly connected from left to right through the top of the barrel cover. One end of the second air inlet pipe 14 and the liquor outlet pipe both pass through the barrel cover and extend to the bottom of the barrel cover. One end of the liquor outlet pipe is detachably connected to an infusion pipe 15. A pressure gauge 16, a valve 17, and a filter 18 are sequentially installed from left to right on the outer wall of the infusion pipe 15. The other end of the infusion pipe 15 is connected to a filling machine 19 located on the right side of the sealing barrel 13.

[0027] The filling machine 19 is equipped with a nitrogen filling device, which includes a base 1 and a frame 2. The base 1 is used to place the liquor bottle 11, and the base 1 has a groove for placing the liquor bottle 11. The liquor bottle 11 is placed in the groove for positioning, so as to prevent the liquor bottle 11 from moving during the filling process and causing filling failure.

[0028] As attached Figure 2-4 As shown, The frame 2 is equipped with a hydraulic cylinder 3 and a nitrogen filling assembly. The nitrogen filling assembly includes a circular body 4, and a circular channel 5 is provided inside the body 4. The piston rod of the hydraulic cylinder 3 is provided with a push block 6 that is slidably connected to the channel 5. A limit block 10 is provided inside the channel 5 to prevent the push block 6 from sliding out. When the push block 6 rises, it will not slide out of the channel 5.

[0029] Below the push block 6 in channel 5, there is a bottle stopper 7. The diameter of channel 5 is the same as the diameter of the mouth of the liquor bottle 11. The lower end of the main body 4 is also provided with a boss 12, the inner diameter of which matches the outer diameter of the bottle mouth. The boss 12 of the main body 4 is directly fitted onto the bottle mouth, thereby making the bottle mouth located inside channel 5.

[0030] The main body 4 is equipped with a first inlet pipe 8 for introducing nitrogen gas and an outlet pipe 9 for discharging nitrogen gas. Both the first inlet pipe 8 and the outlet pipe 9 are connected to the channel 5. The first inlet pipe 8 is connected to a nitrogen filling cylinder, which is equipped with a valve 17. The nitrogen filling cylinder is opened and closed by the valve 17. The outlet pipe 9 is connected to an exhaust fan. The exhaust fan creates negative pressure by evacuating air from the channel 5. The outlet of the first inlet pipe 8 and the inlet of the outlet pipe 9 are both located below the inlet 20.

[0031] The main body 4 is provided with an inlet 20 for inserting the bottle stopper 7, and the inlet 20 is located below the push plate.

[0032] Specific operations: First, when using this device, the liquor is first delivered to the sealed container 13. Then, the liquor outlet pipe is connected to the infusion pipe 15. Next, the second air inlet pipe 14 is connected to the external nitrogen pipeline, and nitrogen is introduced into the second air inlet pipe 14. Then, the pressure is adjusted to 0.01 Pa using a pressure reducing valve, and the nitrogen is delivered to the sealed container 13 through the second air inlet pipe 14. Then, the liquor in the sealed container 13 enters the liquor outlet pipe under nitrogen pressure. Next, the liquor enters the infusion pipe 15, then passes through the filter 18, and finally flows into the filling machine 19. The filling machine 19 fills the liquor into the corresponding bottles and then corks and packages them.

[0033] The mouth of a liquor bottle 11 filled with liquor is placed in channel 5, and the bottom of the bottle is placed in the groove. The stopper 7 is inserted into the main body 4 through the inlet 20. Then, the piston rod of the hydraulic cylinder 3 pushes the stopper 7 downward through the push block 6, thereby forming a seal in channel 5. At the same time, nitrogen enters from the first air inlet pipe 8 and exits from the air outlet pipe 9, thereby expelling the air in channel 5 and sealing the channel 5 with nitrogen. Then, the first air inlet pipe 8 is closed, and the air outlet pipe 9 is connected to the exhaust fan to continue to draw air, creating a negative pressure in channel 5. The hydraulic cylinder 3 stops moving, and the negative pressure causes the stopper 7 to continue to move downward to seal the bottle mouth. After sealing, the piston rod of the hydraulic cylinder 3 retracts, causing the main body 4 to leave the liquor bottle 11, and then seals the next liquor bottle 11.

[0034] The above are merely embodiments of this utility model. This utility model is not limited to the field covered by this embodiment. Commonly known structures and characteristics in the solution are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are able to access all existing technologies in that field, and have the ability to apply conventional experimental methods prior to that date. Those skilled in the art can, under the guidance of this application, improve and implement this solution in combination with their own capabilities. Some typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims. The specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A device for sealing and filling the bottle mouth of a sauce-flavored liquor bottle with ammonia, comprising a nitrogen filling device, characterized in that, The nitrogen filling device includes a base (1) and a frame (2). The base (1) is used to place the liquor bottle (11). The frame (2) is equipped with a hydraulic cylinder (3) and a nitrogen filling assembly. The nitrogen filling assembly includes a circular body (4). The body (4) has a circular channel (5). The piston rod of the hydraulic cylinder (3) is equipped with a push block (6) that is slidably connected to the channel (5). A bottle stopper (7) is provided below the push block (6) in the channel (5). The diameter of the channel (5) is the same as the diameter of the mouth of the liquor bottle (11). The main body (4) is provided with a first inlet pipe (8) for introducing nitrogen and an outlet pipe (9) for discharging nitrogen. Both the first inlet pipe (8) and the outlet pipe (9) are connected to the channel (5). The main body (4) is provided with an inlet (20) for inserting a bottle stopper (7). The inlet (20) is located below the push plate.

2. The ammonia-filling device for sealing the bottle mouth of a sauce-flavored liquor as described in claim 1, characterized in that: The base (1) is provided with a groove for placing a liquor bottle (11).

3. The ammonia-filling device for sealing the bottle mouth of a sauce-flavored liquor as described in claim 1, characterized in that: The channel (5) is provided with a limiting block (10) to prevent the push block (6) from sliding out.

4. The ammonia-filling device for sealing the bottle mouth of a sauce-flavored liquor as described in claim 1, characterized in that: The lower end of the main body (4) is also provided with a boss (12), the inner diameter of which matches the outer diameter of the bottle mouth.

5. The ammonia-filling device for sealing the bottle mouth of a sauce-flavored liquor as described in claim 1, characterized in that: The first air inlet pipe (8) is connected to a nitrogen filling cylinder, and the nitrogen filling cylinder is equipped with a valve (17).

6. The ammonia-filling device for sealing the bottle mouth of a sauce-flavored liquor as described in claim 1, characterized in that: The exhaust pipe (9) is connected to the exhaust fan.

7. The ammonia-filling device for sealing the bottle mouth of a sauce-flavored liquor as described in claim 1, characterized in that: The air outlet of the first air inlet pipe (8) and the air inlet of the air outlet pipe (9) are both located below the inlet (20).

8. The ammonia-filling device for sealing the bottle mouth of a sauce-flavored liquor as described in claim 1, characterized in that: It also includes a sealed barrel (13), on the top of which is a barrel cover. A second air inlet pipe (14) and a wine outlet pipe are connected to the top of the barrel cover from left to right. One end of the second air inlet pipe (14) and the wine outlet pipe both pass through the barrel cover and extend to the bottom of the barrel cover. One end of the wine outlet pipe is detachably connected to an infusion pipe (15). A pressure gauge (16), a valve (17) and a filter (18) are installed on the outer wall of the infusion pipe (15) from left to right. The other end of the infusion pipe (15) is connected to a filling machine (19) located on the right side of the sealed barrel (13). The nitrogen filling device is located on the filling machine (19).