Fresh-keeping and quality-guaranteeing device for sweet wine

Abstract

The invention discloses a sweet wine freshness retaining and quality guaranteeing device which comprises a freshness retaining cabinet, a plurality of mounting grooves are formed in the two side walls of the freshness retaining cabinet, partition plates are arranged between the mounting grooves in the two sides, a plurality of transverse grooves and a plurality of vertical grooves are formed in the partition plates respectively, and limiting mechanisms are arranged on the two sides of the partition plates. One side of the fresh-keeping cabinet is communicated with a vacuumizing mechanism, the other side of the fresh-keeping cabinet is communicated with a nitrogen conveying mechanism, a refrigerator is arranged on the top surface of the fresh-keeping cabinet, and the end part of the refrigerator penetrates through the fresh-keeping cabinet and is connected with a refrigeration cover, so that the storage suitability is high, the height of a partition plate can be flexibly adjusted, and sweet wine containers of various specifications can be adapted; the oxygen-isolating and fresh-keeping effects are good, the synergistic effect of vacuumizing and nitrogen filling is achieved, oxidative deterioration is inhibited, the shelf life is prolonged, in addition, efficient sterilization is achieved through the arrangement of the sterilization mechanisms, uniform cooling is achieved through the swing type refrigeration cover, the environment is purified comprehensively through the multiple sterilization mechanisms, and the fresh-keeping and quality-keeping effects are further enhanced.

Description

Technical Field

[0001] This application relates to the technical field of sweet wine storage, and more particularly to a sweet wine preservation and quality maintenance device. Background Technology

[0002] Sweet wine is a type of specialty food made from grains, fruits, and other raw materials through fermentation. Its flavor and quality are highly dependent on the storage environment. Low-temperature, oxygen-free, and sterile storage conditions are key to delaying oxidation and spoilage, preserving nutrients, and maintaining its unique taste. Currently, refrigerators are commonly used as the primary refrigeration and preservation equipment for sweet wine storage. However, ordinary refrigerators are not designed specifically for the storage characteristics of sweet wine and have many insurmountable defects in practical applications, severely affecting the preservation effect and shelf life of sweet wine.

[0003] First, the shelves in ordinary refrigerators are mostly fixed or only support a limited number of height adjustments, which cannot flexibly adapt to sweet wine containers of different heights and sizes. This not only makes it impossible to fit some sweet wine containers smoothly, but also wastes refrigeration space when the shelf spacing is too large. Second, the inside of an ordinary refrigerator is an atmospheric pressure oxygen environment. After the sweet wine is opened, the liquid will come into direct contact with oxygen in the air and undergo an oxidation reaction, which will destroy the flavor substances and nutrients in the wine, causing the sweet wine to become bland, lose its aroma, and even produce sour, astringent, or rotten odors. Even if the bottle is not opened, the slow oxidation of a small amount of air and liquid inside the bottle during long-term storage will gradually reduce the quality of the sweet wine.

[0004] In addition, microorganisms remaining in the refrigerator can easily adhere to the surface of the sweet wine container or enter the wine through the sealed gaps, causing contamination. However, existing refrigerators generally do not have a targeted sterilization structure, so they cannot effectively purify the storage environment and cannot guarantee the safety of sweet wine consumption.

[0005] Application content

[0006] This application aims to at least partially address one of the technical problems in the related art.

[0007] Therefore, the purpose of this application is to propose a sweet wine preservation and quality maintenance device with strong storage adaptability, flexible adjustment of the partition height to fit various sizes of sweet wine containers, good oxygen-free preservation effect, and the synergistic effect of vacuuming and nitrogen filling to inhibit oxidative deterioration and extend shelf life. In addition, efficient sterilization is achieved by setting up a sterilization mechanism, uniform cooling is achieved by a swing-type refrigeration hood, and multiple sterilization mechanisms purify the environment in all directions, further enhancing the preservation and quality maintenance effect.

[0008] To achieve the above objectives, this application proposes a sweet wine preservation and quality maintenance device, including a preservation cabinet. Multiple mounting slots are provided on both side walls of the preservation cabinet, and partitions are provided between the mounting slots on both sides. Multiple horizontal and vertical slots are respectively provided on the partitions. Limiting mechanisms are provided on both sides of the partitions. A vacuuming mechanism is connected to one side of the preservation cabinet, and a nitrogen delivery mechanism is connected to the other side. A cooler is provided on the top surface of the preservation cabinet, and the end of the cooler passes through the preservation cabinet and is connected to a cooling cover. A swinging mechanism is provided on one side of the preservation cabinet and is connected to the cooling cover. Multiple sterilization mechanisms are embedded in the rear wall of the preservation cabinet.

[0009] This application discloses a sweet wine preservation and quality maintenance device with strong storage adaptability. The height of the partition can be flexibly adjusted to accommodate various sizes of sweet wine containers. At the same time, it has a good oxygen-free preservation effect. The synergistic effect of vacuuming and nitrogen filling inhibits oxidative deterioration and extends the shelf life. In addition, it achieves efficient sterilization by setting up a sterilization mechanism, and achieves uniform cooling by a swing-type refrigeration hood. The multiple sterilization mechanisms purify the environment in all directions, further enhancing the preservation and quality maintenance effect.

[0010] In addition, the application may also include the following additional technical features:

[0011] Specifically, both of the limiting mechanisms include a fixing plate, which is disposed on the partition. A spring is connected to one side of the fixing plate, and the spring is connected to a limiting block. A slot is provided in the mounting groove, and the limiting block is inserted into the slot.

[0012] Specifically, the vacuuming mechanism includes a support plate, a vacuum pump is provided on the top surface of the support plate, a delivery pipe is connected to one side of the vacuum pump, and multiple suction pipes are connected to one side of the delivery pipe. The multiple suction pipes extend through the side wall of the refrigerator and into the refrigerator.

[0013] Specifically, the nitrogen delivery mechanism includes a housing, which is disposed on one side of the refrigerator. A nitrogen tank is disposed inside the housing, and the nitrogen tank is connected to a gas delivery pipe. The gas delivery pipe is connected to a gas distributor, and the gas distributor is connected to the refrigerator.

[0014] Specifically, the swing mechanism includes a protective shell disposed on one side of the refrigerator. A driver is disposed on the top surface of the protective shell. A rotating plate is connected to the output end of the driver. A sliding column is slidably connected to the rotating plate. A sliding sleeve is connected to the sliding column. A rotating shaft is rotatably connected inside the protective shell. A swing frame is connected to the rotating shaft. The sliding sleeve is slidably connected to the swing frame. The rotating shaft passes through the side wall of the refrigerator and is connected to the refrigeration cover.

[0015] Specifically, the sterilization mechanism includes a sterilizer, the rear wall of the refrigerator has multiple through slots, the sterilizer is disposed in the through slots, a first magnet is disposed on both sides of the sterilizer, a second magnet that cooperates with the first magnet is disposed on the side walls of the through slots, and a pull plate is disposed on one side of the sterilizer.

[0016] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:

[0018] Figure 1 This is a first perspective schematic diagram of a sweet wine preservation and quality maintenance device according to this application;

[0019] Figure 2 This is a schematic diagram of the interior of a refrigerator for a sweet wine preservation and quality maintenance device according to this application;

[0020] Figure 3 This is a second perspective schematic diagram of a sweet wine preservation and quality maintenance device according to this application;

[0021] Figure 4 This is an enlarged schematic diagram of area A of a sweet wine preservation and quality maintenance device according to this application;

[0022] Figure 5 This is a schematic diagram of the swing mechanism of a sweet wine preservation and quality maintenance device according to this application;

[0023] Figure 6 This is an enlarged schematic diagram of area B of a sweet wine preservation and quality maintenance device according to this application.

[0024] As shown in the figure: 10. Refrigeration cabinet; 11. Mounting slot; 12. Partition; 13. Horizontal slot; 14. Vertical slot; 15. Through slot; 20. Limiting mechanism; 21. Fixing plate; 22. Spring; 23. Limiting block; 24. Slot; 30. Vacuuming mechanism; 31. Support plate; 32. Vacuum pump; 33. Delivery pipe; 34. Suction pipe; 40. Nitrogen delivery mechanism; 41. Outer shell; 42. Nitrogen tank; 43. Gas delivery pipe; 44. Gas distributor; 50. Refrigerator; 51. Refrigeration cover; 60. Swinging mechanism; 61. Protective shell; 62. Driver; 63. Rotating plate; 64. Sliding column; 65. Sliding sleeve; 66. Swinging frame; 67. Rotating shaft; 70. Sterilization mechanism; 71. Sterilizer; 72. First magnet; 73. Second magnet; 74. Pull plate. Detailed Implementation

[0025] In the description of this application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "center", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation structure and operation. Therefore, they should not be construed as limitations on this application.

[0026] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "provided with," "installed," "connected," "linked," etc., 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0027] The present application will now be described in further detail with reference to the accompanying drawings.

[0028] like Figures 1-6 As shown in the figure, a sweet wine preservation device according to an embodiment of this application includes a preservation cabinet 10. Multiple mounting slots 11 are provided on both side walls of the preservation cabinet 10. A partition 12 is provided between the mounting slots 11 on both sides. Multiple horizontal slots 13 and multiple vertical slots 14 are provided on the partitions 12. Limiting mechanisms 20 are provided on both sides of the partitions 12. A vacuuming mechanism 30 is connected to one side of the preservation cabinet 10, and a nitrogen delivery mechanism 40 is connected to the other side. A cooler 50 is provided on the top surface of the preservation cabinet 10. The end of the cooler 50 passes through the preservation cabinet 10 and is connected to a cooling cover 51. A swinging mechanism 60 is provided on one side of the preservation cabinet 10 and is connected to the cooling cover 51. Multiple sterilization mechanisms 70 are embedded in the rear wall of the preservation cabinet 10.

[0029] It should be noted that the flexible adjustable partition 12 structure and the specially designed tank shape enable the classification and suitable storage of sweet wines. The horizontal tank 13 facilitates the laying of sweet wine bottles, allowing the corks inside to remain in continuous contact with the wine, preventing the corks from drying out and shrinking, which could lead to seal failure and allow air to enter the bottle, causing the sweet wine to oxidize and deteriorate. The vertical tank 14 facilitates the vertical placement of sweet wine bottles, meeting the needs of short-term storage. Based on this, the vacuum mechanism 30 and the nitrogen delivery mechanism 40 work together to create an oxygen-free environment, inhibiting the oxidation and deterioration of the sweet wine. The refrigerator 50 achieves low-temperature preservation and freshness. The swing mechanism 60 drives the refrigeration cover 51 to swing, expanding the range of cold air release, achieving uniform cooling inside the cabinet, and maintaining a suitable preservation temperature. The sterilization mechanism 70 continuously purifies the environment inside the cabinet, eliminating harmful microorganisms and preventing contamination of the sweet wine.

[0030] In one embodiment of this application, such as Figure 4 As shown, both limiting mechanisms 20 include a fixing plate 21, which is mounted on the partition plate 12. A spring 22 is connected to one side of the fixing plate 21, and the spring 22 is connected to a limiting block 23. A slot 24 is provided in the mounting groove 11, and the limiting block 23 is inserted into the slot 24.

[0031] It should be noted that the elastic extension and contraction characteristics of the spring 22 are used to realize the telescopic adjustment of the limiting block 23. The fixing plate 21 provides a stable installation support reference for the spring 22 and the limiting block 23. When installing the partition 12, the limiting block 23 is pressed inward, the spring 22 is compressed and contracted, and the two sides of the partition 12 are aligned with the mounting groove 11 and pushed in. When the limiting block 23 moves to the position of the slot 24, the spring 22 restores its elastic deformation and pushes the limiting block 23 into the slot 24. Through the insertion and cooperation of the limiting block 23 and the slot 24, the partition 12 is positioned in the mounting groove 11. When it is necessary to adjust the position of the partition 12, the limiting block 23 is moved again to make the spring 22 contract, the limiting block 23 is disengaged from the slot 24, and the partition 12 can be easily pulled out.

[0032] In one embodiment of this application, such as Figure 1 As shown, the vacuum mechanism 30 includes a support plate 31, a vacuum pump 32 is provided on the top surface of the support plate 31, a delivery pipe 33 is connected to one side of the vacuum pump 32, and a plurality of suction pipes 34 are connected to one side of the delivery pipe 33. The plurality of suction pipes 34 extend through the side wall of the refrigerator 10 and into the refrigerator 10.

[0033] It should be noted that a shut-off valve is installed at the connection between the outlet of the vacuum pump 32 and the delivery pipe 33, and a solenoid valve is installed at the connection between each suction pipe 34 and the delivery pipe 33. This allows for individual control of the suction in different areas of the refrigerator 10, making it convenient to flexibly adjust the suction focus according to the distribution of the sweet wine storage.

[0034] The support plate 31 provides stable installation support for the vacuum pump 32, ensuring the stability of the vacuum pump 32 during operation. After the vacuum pump 32 is started, the vacuum pump 32 generates negative pressure suction, which is transmitted to multiple air extraction pipes 34 through the delivery pipe 33. The multiple air extraction pipes 34 extending into the refrigerator 10 simultaneously extract the air inside the refrigerator. Due to the distributed arrangement of the air extraction pipes 34, the air in different areas inside the refrigerator can be extracted evenly, ultimately creating a vacuum or low-oxygen environment inside the refrigerator 10, which inhibits the spoilage and off-flavor of the sweet wine caused by oxidation.

[0035] In one embodiment of this application, such as Figure 2 As shown, the nitrogen delivery mechanism 40 includes a housing 41, which is located on one side of the refrigerator 10. A nitrogen tank 42 is installed inside the housing 41. The nitrogen tank 42 is connected to a gas delivery pipe 43, which is connected to a gas distributor 44. The gas distributor 44 is connected to the refrigerator 10.

[0036] It should be noted that a pressure reducing valve and a shut-off valve are installed at the connection between the outlet of nitrogen tank 42 and the gas supply pipe 43. The pressure reducing valve can adjust the high-pressure nitrogen in the nitrogen tank to a low-pressure gas flow suitable for the refrigerator, so as to avoid the high-pressure nitrogen impacting the sweet wine container. The shut-off valve is used to control the start and stop of nitrogen supply, so as to cut off the gas source when replacing nitrogen tank or during maintenance.

[0037] Solenoid valves are installed at each branch outlet of the gas distributor 44, which can precisely adjust the nitrogen delivery volume of each branch to ensure uniform nitrogen concentration in different areas of the refrigerator, while adapting to the preservation needs of sweet wine in different storage areas.

[0038] The outer shell 41 provides protection and fixation for the nitrogen tank 42, preventing damage from external impacts. The nitrogen tank 42 serves as a nitrogen storage container, delivering nitrogen to the gas distributor via the gas pipe 43. The core function of the gas distributor is to divide the nitrogen delivered from a single pipeline into multiple uniform gas flows, and then smoothly deliver the divided nitrogen to the refrigerator. Combined with the initial evacuation function of the vacuum mechanism, the nitrogen fills the vacuum refrigerator, further replacing the small amount of residual oxygen and forming a stable inert gas protective atmosphere, fundamentally inhibiting the oxidation and deterioration of the sweet wine.

[0039] In one embodiment of this application, such as Figure 5 As shown, the swing mechanism 60 includes a protective shell 61, which is disposed on one side of the refrigerator 10. A driver 62 is disposed on the top surface of the protective shell 61. A rotating plate 63 is connected to the output end of the driver 62. A sliding column 64 is slidably connected to the rotating plate 63. A sliding sleeve 65 is connected to the sliding column 64. A rotating shaft 67 is rotatably connected inside the protective shell 61. A swing frame 66 is connected to the rotating shaft 67. The sliding sleeve 65 is slidably connected to the swing frame 66. The rotating shaft 67 passes through the side wall of the refrigerator 10 and is connected to the refrigeration cover 51.

[0040] It should be noted that the driver 62 described in this embodiment can be a servo motor. The protective shell 61 provides protection for the internal transmission components, preventing dust and impurities from entering and affecting the transmission accuracy, while ensuring operational safety. The driver 62 serves as a power source, driving the rotating plate 63 to rotate. The sliding column 64 slides in the through hole of the rotating plate 63, while driving the sliding sleeve 65 to move. The sliding sleeve 65 slides in cooperation with the swing frame 66, converting the rotational motion of the rotating plate 63 into the reciprocating swing motion of the swing frame 66. The swing frame 66 drives the rotating shaft 67 to rotate back and forth around the rotation center. The rotating shaft 67 is connected to the refrigeration cover 51, ultimately driving the refrigeration cover 51 to swing back and forth inside the refrigerator, expanding the range of cold energy emitted by the refrigeration cover 51.

[0041] In one embodiment of this application, such as Figure 3 and Figure 6As shown, the sterilization mechanism 70 includes a sterilizer 71. The rear wall of the refrigerator 10 is provided with multiple through slots 15. The sterilizer 71 is installed in the through slots 15. A first magnet 72 is provided on both sides of the sterilizer 71. A second magnet 73 that cooperates with the first magnet 72 is provided on both sides of the through slot 15. A pull plate 74 is provided on one side of the sterilizer 71.

[0042] It should be noted that the through slot 15 provides an installation position for the sterilizer 71, ensuring that the sterilization range covers the inside of the cabinet. The sterilizer 71 can be an ultraviolet sterilizer. When working, it diffuses ultraviolet light into the refrigerator 10 to kill bacteria, mold and other harmful microorganisms inside the cabinet, preventing microbial contamination of the sweet wine. The sterilizer 71 is fixed by the magnetic attraction of the first magnet 72 and the second magnet 73. The property of opposite poles of magnets attracting each other makes the sterilizer 71 stably fixed in the through slot 15. When it is necessary to replace or maintain the sterilizer 71, the magnetic attraction force can be overcome by applying an outward pulling force through the pull plate 74, and the sterilizer 71 can be taken out.

[0043] Specifically, in actual operation, the layout of the partition 12 is adjusted according to the height of the sweet wine bottles to be preserved and the storage requirements. During adjustment, the limiting blocks 23 of the limiting mechanisms 20 on both sides of the partition are pressed inward, causing the spring 22 to contract. The limiting blocks 23 disengage from the slots 24 of the current installation groove 11, allowing the partition 12 to be moved up and down to the appropriate height. The limiting blocks 23 are released, and the spring 22 returns to its deformation, pushing the limiting blocks 23 into the slots 24 of the corresponding height, thus fixing the partition 12. Then, the sweet wine bottles are classified and placed into the horizontal slots 13 or vertical slots 14 of the partition. Sweet wine bottles that need to be stored for a long time are placed in the horizontal slots 13 to lie down, ensuring that the cork is in contact with the wine. Sweet wine bottles that need to be stored for a short time or are short and stout are placed in the vertical slots 14 and placed vertically. After placement, the cabinet door of the refrigerator 10 is closed and sealed.

[0044] The vacuum pump 32 of the vacuum mechanism 30 is started, generating negative pressure suction. This suction is transmitted to multiple suction pipes 34 through the delivery pipe 33. The suction pipes simultaneously extract air from the refrigerator 10 until the preset vacuum level is reached. The shut-off valves on the vacuum pump 32 and delivery pipe 33 are then closed to prevent air backflow. Next, the nitrogen delivery mechanism 40 is started, and the pressure reducing valve and shut-off valve at the outlet of the nitrogen tank 42 are opened. Nitrogen is delivered to the gas distributor 44 through the gas delivery pipe 43. The gas distributor 44 splits the nitrogen into multiple uniform gas streams and sends them into the refrigerator 10 to replace the small amount of residual oxygen in the refrigerator, forming a stable inert gas protective atmosphere. When the nitrogen concentration in the refrigerator reaches the preset value, the shut-off valve at the outlet of the nitrogen tank 42 is closed, completing the construction of the oxygen-free environment.

[0045] The top-mounted refrigeration unit 50 is activated, generating cooling energy which is then transferred to the refrigeration hood 51 via the connection end. Simultaneously, the side-mounted swing mechanism 60 is activated, with the driver 62 driving the rotating plate 63 to rotate. The rotating plate 63, through the sliding column 64 and sliding sleeve 65, drives the swing frame 66 to swing back and forth. The swing frame drives the rotating shaft 67 to rotate, thereby causing the refrigeration hood 51 to swing back and forth within the refrigerator 10, allowing the cooling energy to be evenly distributed to all areas inside the refrigerator, gradually lowering the temperature inside the refrigerator to the suitable preservation temperature for sweet wine and maintaining it stably. During this process, multiple sterilization mechanisms 70 embedded in the rear wall are activated. The sterilizer 71 releases ultraviolet light into the refrigerator through the channel 15, evenly killing harmful microorganisms such as bacteria and mold inside the refrigerator, continuously purifying the preservation environment. The sterilizer maintains a stable working state through the magnetic attraction between the first magnet 72 and the second magnet 73 on the side wall of the channel.

[0046] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0047] The present application and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present application. The actual structure is not limited to this. In conclusion, if a person skilled in the art is inspired by this description and designs a similar structure and embodiment without departing from the spirit of the present application, such design should fall within the protection scope of the present application.

Claims

1. A device for preserving and maintaining the quality of sweet wine, comprising a refrigerator (10), characterized in that: The refrigerator (10) has multiple mounting slots (11) on both sides of its side walls. A partition (12) is provided between the mounting slots (11) on both sides. Multiple horizontal slots (13) and multiple vertical slots (14) are provided on the partitions (12). Limiting mechanisms (20) are provided on both sides of the partitions (12). A vacuuming mechanism (30) is connected to one side of the refrigerator (10). A nitrogen delivery mechanism (40) is connected to the other side of the refrigerator (10). A cooler (50) is provided on the top surface of the refrigerator (10). The end of the cooler (50) passes through the refrigerator (10) and is connected to a cooling cover (51). A swinging mechanism (60) is provided on one side of the refrigerator (10). The swinging mechanism (60) is connected to the cooling cover (51). Multiple sterilization mechanisms (70) are embedded in the rear wall of the refrigerator (10).

2. The sweet wine preservation and quality maintenance device according to claim 1, characterized in that: Both of the limiting mechanisms (20) include a fixing plate (21), which is disposed on the partition (12). A spring (22) is connected to one side of the fixing plate (21), and the spring (22) is connected to a limiting block (23). A slot (24) is provided in the mounting groove (11), and the limiting block (23) is inserted into the slot (24).

3. The sweet wine preservation and quality maintenance device according to claim 1, characterized in that: The vacuum mechanism (30) includes a support plate (31), and a vacuum pump (32) is provided on the top surface of the support plate (31). A delivery pipe (33) is connected to one side of the vacuum pump (32), and a plurality of suction pipes (34) are connected to one side of the delivery pipe (33). The plurality of suction pipes (34) extend through the side wall of the refrigerator (10) and into the refrigerator (10).

4. The sweet wine preservation and quality maintenance device according to claim 1, characterized in that: The nitrogen delivery mechanism (40) includes a housing (41) which is located on one side of the refrigerator (10). A nitrogen tank (42) is located inside the housing (41). The nitrogen tank (42) is connected to a gas delivery pipe (43). The gas delivery pipe (43) is connected to a gas distributor (44). The gas distributor (44) is connected to the refrigerator (10).

5. The sweet wine preservation and quality maintenance device according to claim 1, characterized in that: The swing mechanism (60) includes a protective shell (61), which is disposed on one side of the refrigerator (10). A driver (62) is disposed on the top surface of the protective shell (61). A rotating plate (63) is connected to the output end of the driver (62). A sliding column (64) is slidably connected to the rotating plate (63). A sliding sleeve (65) is connected to the sliding column (64). A rotating shaft (67) is rotatably connected inside the protective shell (61). A swing frame (66) is connected to the rotating shaft (67). The sliding sleeve (65) is slidably connected to the swing frame (66). The rotating shaft (67) passes through the side wall of the refrigerator (10) and is connected to the refrigeration cover (51).

6. The sweet wine preservation and quality maintenance device according to claim 1, characterized in that: The sterilization mechanism (70) includes a sterilizer (71). The rear wall of the refrigerator (10) is provided with multiple through slots (15). The sterilizer (71) is disposed in the through slots (15). A first magnet (72) is provided on both sides of the sterilizer (71). A second magnet (73) that cooperates with the first magnet (72) is provided on both sides of the through slot (15). A pull plate (74) is provided on one side of the sterilizer (71).

Images