Manual vacuumizing wine stopper

Abstract

The utility model discloses a manual vacuumizing wine stopper which comprises a stopper seat, a hollow exhaust pipe connected to the middle of the stopper seat and a piston assembly arranged in the exhaust pipe and capable of sliding up and down relative to the exhaust pipe, a valve assembly is arranged at the bottom of the exhaust pipe, and the piston assembly comprises a hollow piston rod. The piston rod is arranged in the exhaust pipe and can slide up and down relative to the exhaust pipe, and a deflation mechanism capable of controlling the valve assembly to be opened for exhausting is arranged in the piston rod. When red wine cannot be drunk up after being opened, a user can insert the exhaust pipe into the wine bottle, meanwhile, the bottle opening is blocked through the plug seat, and then the piston rod slides up and down to exhaust air in the bottle, so that the interior of the bottle is in a vacuum state, and the remaining red wine in the bottle is stored in the vacuum state; when the user needs to enjoy the remaining red wine next time, the valve assembly can be opened through the deflation mechanism in the piston rod, air outside the bottle can be discharged into the bottle at the moment, the air pressure inside and outside the bottle is balanced, the wine stopper can be easily pulled to be separated from the bottle opening, and the wine stopper opening operation is convenient and labor-saving.

Description

Technical Field

[0001] The utility model belongs to the technical field of container stoppers, and particularly relates to a manual vacuum wine stopper. Background Art

[0002] With the improvement of people's living standards, red wine has become increasingly popular. At present, most of the wine bottle stoppers on the market are wooden soft stoppers. After opening, the stoppers are often damaged, and moreover, after re-capping the stoppers, it is still impossible to prevent the red wine in the bottle from contacting the air. Generally, people cannot finish a whole bottle of wine at once after opening a bottle of red wine. And the red wine will be oxidized after contacting the air, resulting in a deteriorated taste. Therefore, it is very important to preserve the remaining red wine and avoid its oxidation.

[0003] In order to avoid the oxidation problem of the opened red wine, there appears a vacuum wine stopper on the market now. This wine stopper is mainly composed of a stopper seat and an air extraction structure. The air extraction structure mainly has two types: manual piston air extraction and electric air pump air extraction. When in use, the stopper seat is covered on the wine bottle mouth to seal the bottle mouth, and then the air in the bottle is extracted by using the air extraction structure, so that the inside of the bottle is kept in a vacuum state, so that the remaining red wine in the bottle is stored in a vacuum state to avoid the oxidation of the red wine.

[0004] However, the existing vacuum wine stoppers only have the functions of vacuum extraction and sealing. When the air in the bottle is exhausted, due to the large air pressure difference between the inside and outside of the bottle, it is difficult to take out the wine stopper from the bottle mouth, which is inconvenient to use. And forcibly pulling out the wine stopper is also easy to cause damage to the wine stopper or spillage of the red wine. Content of the Utility Model

[0005] Aiming at the above deficiencies in the prior art, the purpose of the utility model is to provide a manual vacuum wine stopper that can be easily opened.

[0006] To achieve the above purpose, the technical solution adopted by the utility model is as follows: a manual vacuum wine stopper, including a stopper seat, a hollow air extraction pipe connected to the middle of the stopper seat, a piston assembly arranged in the air extraction pipe and capable of sliding up and down relative to the air extraction pipe. A valve assembly is arranged at the bottom of the above air extraction pipe. The piston assembly includes a hollow piston rod. The piston rod is arranged in the air extraction pipe and can slide up and down relative to the air extraction pipe. An air release mechanism capable of controlling the valve assembly to open and exhaust air is arranged in the piston rod.

[0007] In the above solution, when there is some leftover red wine after opening the bottle, the user can use this wine stopper to block the bottle mouth. Specifically, the user can insert the air extraction tube into the wine bottle from the bottle mouth, and at the same time block the bottle mouth with the plug seat. Then, slide the piston rod up and down to extract the air inside the bottle, so that the inside of the bottle reaches a vacuum state, enabling the remaining red wine in the bottle to be stored in a vacuum state and preventing the red wine from being oxidized. When the user needs to enjoy the remaining red wine next time, the valve assembly can be opened through the air release mechanism inside the piston rod. At this time, the air outside the bottle will be discharged into the bottle, making the air pressure inside and outside the bottle reach equilibrium. In this way, it is easy to pull the wine stopper away from the bottle mouth, and the operation of opening the wine stopper is convenient and labor-saving.

[0008] Further, a handle is provided at the upper end of the above-mentioned piston rod. The handle is located above the plug seat. Through the handle, it is convenient to operate the piston rod to slide up and down relative to the air extraction tube. The above-mentioned piston rod passes through the middle of the plug seat. The air release mechanism includes an air release rod provided inside the piston rod. The upper part of the air release rod extends out of the upper end of the piston rod, and the lower end of the air release rod can control the valve assembly to open and exhaust. During use, by operating the air release rod, the opening of the valve assembly can be controlled, and the operation is convenient.

[0009] Further, air holes are provided at the bottom of the above-mentioned air extraction tube. The valve assembly includes an air plug and a first magnetic part connected to the air plug. The air plug is arranged inside the air extraction tube and is located between the air holes and the piston rod, and the air plug can slide up and down inside the air extraction tube. When the air plug slides down, it can block the air holes. And a second magnetic part that can attract the first magnetic part is provided at the lower end of the air release rod. When the air release rod drives the second magnetic part to approach the first magnetic part, the second magnetic part will attract the first magnetic part and drive the air plug to slide up to open the air holes for exhaust. At this time, when the wine stopper is installed on the bottle mouth and the inside of the bottle is in a vacuum state, the air outside the bottle will be discharged into the bottle from the air holes, making the air pressure inside and outside the bottle reach equilibrium, so that it is easy to pull the plug seat away from the bottle mouth.

[0010] Further, the above-mentioned second magnetic part is a magnetic block, and the first magnetic part is a metal block that can attract the magnetic block. The first magnetic part is fixed to the upper end of the air plug. When the magnetic block approaches the metal block, the magnetic block will attract the metal block through its own magnetic attraction force and drive the air plug to slide up to open the air holes. And the valve assembly further includes a guide sleeve arranged inside the air extraction tube. The air plug is arranged inside the guide sleeve and can slide up and down relative to the guide sleeve to improve the sliding smoothness of the air plug.

[0011] Further, a bottom cover is provided at the bottom of the above-mentioned air extraction tube. The air holes are opened at the bottom of the bottom cover. The side wall of the bottom cover is sleeved inside the lower end of the air extraction tube. The side wall of the bottom cover is tightly fitted or clamped with the inner side of the lower end of the air extraction tube. The guide sleeve is sleeved inside the bottom cover. When it is necessary to disassemble the bottom cover, it is necessary to forcefully pull the bottom cover out from the lower end of the air extraction tube. After disassembling and separating the bottom cover, it is also convenient for the disassembly and assembly operations of the guide sleeve and the air plug with the bottom cover; in addition, the side wall of the bottom cover is tightly fitted or clamped with the inner side of the lower end of the air extraction tube, so that the bottom cover will not fall off during the air extraction and air release operations.

[0012] Furthermore, a sealing washer is provided on the bottom cover described above. The air hole is aligned with the hollow position of the sealing washer. A groove is provided on the lower end face of the air plug. When the air plug slides downward, the periphery of the groove opening abuts against the sealing washer. By providing a groove on the lower end face of the air plug, the lower end of the air plug can be more easily deformed, so that the lower end of the air plug abuts more tightly against the sealing washer, thereby improving the sealing performance of the air plug to the air hole.

[0013] Furthermore, a return spring is sleeved on the outer side of the air release rod described above. A positioning block is provided on the outer side of the air release rod. The upper end of the return spring abuts against the positioning block, and the lower end abuts against the inner side wall of the piston rod. Without external force, the return spring will push the air release rod to slide upward and reset by its own elastic force, without manual operation of sliding the air release rod upward to reset, which is convenient for operation. Moreover, the return spring can also keep the air release rod at the position where the magnetic block and the metal block are far away from each other, preventing the air plug from opening the air hole and exhausting air non-artificially.

[0014] Furthermore, a first sealing ring groove is provided on the outer side wall of the piston rod described above. A first sealing ring is sleeved in the first sealing ring groove. The width of the first sealing ring groove is greater than the thickness of the first sealing ring, and air holes are also provided on the groove wall of the first sealing ring groove. During use, when the piston rod is pulled upward, the first sealing ring is under the action of the downward frictional force of the inner side wall of the suction pipe and abuts against the lower side wall of the first sealing ring groove. At this time, the upper part of the air hole is exposed above the first sealing ring. Since the first sealing ring abuts against the lower side wall of the first sealing ring groove and the inner side wall of the suction pipe to reach a sealed state, the air hole is isolated, preventing the outside air from passing through the air hole and entering the suction pipe through the first sealing ring. At the same time, the air inside the bottle will force the air plug to slide upward and open the air hole, so that the air inside the bottle is discharged into the space between the first sealing ring and the air plug on the inner side of the suction pipe. When the piston rod is pushed downward, the first sealing ring is under the action of the upward frictional force of the inner side wall of the suction pipe and abuts against the upper side wall of the first sealing ring groove. At this time, the lower part of the air hole is exposed below the first sealing ring, which is equivalent to the air hole being connected to the space between the first sealing ring and the air plug on the inner side of the suction pipe. At the same time, the air plug slides downward and resets under the action of air pressure to block the air hole. At this time, the air between the first sealing ring and the air plug in the suction pipe is compressed by the piston rod and will be discharged out of the bottle through the air hole. In this way, part of the air inside the bottle can be pumped out of the bottle. After repeating the above operations multiple times, all the air inside the bottle can be pumped out, so that the inside of the bottle reaches a vacuum state.

[0015] Furthermore, the air hole penetrates through the inner and outer side walls of the piston rod, so that the air between the first sealing ring and the air plug in the suction pipe can be discharged out of the bottle upward through the gap between the inner side wall of the piston rod and the air release rod.

[0016] Further, an inner plug matching the bottle mouth is also provided in the above-mentioned plug seat. The inner plug is sleeved outside the air extraction pipe, and the bottle mouth can be better sealed through the inner plug to improve the sealing performance of the wine stopper for the bottle mouth.

[0017] The hand-operated vacuum wine stopper of the present utility model can not only evacuate the air in the bottle to reach a vacuum state to avoid oxidation of the red wine, but also when the user needs to enjoy the remaining red wine next time, just press the air release rod to open the air hole so that the air outside the bottle can be discharged into the bottle to make the air pressure inside and outside the bottle reach balance, and then the wine stopper can be easily pulled out of the bottle mouth. The operation of opening the wine stopper is convenient and labor-saving. Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of the first orientation of the hand-operated vacuum wine stopper according to the embodiment of the present utility model.

[0019] Figure 2 It is a schematic structural diagram of the second orientation of the hand-operated vacuum wine stopper according to the embodiment of the present utility model.

[0020] Figure 3 It is a cross-sectional view of the hand-operated vacuum wine stopper according to the embodiment of the present utility model when the air plug is in the state of blocking the air hole.

[0021] Figure 4 It is Figure 3 The enlarged view of part A in

[0022] Figure 5 It is a cross-sectional view of the hand-operated vacuum wine stopper according to the embodiment of the present utility model when the air plug is in the state of opening the air hole.

[0023] Figure 6 It is Figure 5 The enlarged view of part B in

[0024] Figure 7 It is a cross-sectional view of the hand-operated vacuum wine stopper according to the embodiment of the present utility model when the piston rod slides upward to the upper end position of the air extraction pipe.

[0025] Figure 8 It is Figure 7 The enlarged view of part C in

[0026] Figure 9 It is a schematic exploded view of the hand-operated vacuum wine stopper according to the embodiment of the present utility model.

[0027] The descriptions of the reference numerals are as follows:

[0028] 1. Plug seat; 12. Inner plug; 2. Suction pipe; 21. Air hole; 22. Bottom cover; 23. Second sealing ring groove; 231. Second sealing ring; 221. Bottom wall of the bottom cover; 222. Side wall of the bottom cover; 31. Piston rod; 311. First sealing ring groove; 312. Air passing hole; 313. Support platform; 32. Handle; 33. First sealing ring; 41. Air plug; 42. First magnetic part; 43. Guide sleeve; 44. Sealing washer; 51. Air release rod; 511. Positioning block; 52. Second magnetic part; 53. Return spring. Detailed implementation manners

[0029] The attached drawings are only for illustrative purposes and should not be construed as limitations on this patent; for better illustration of this embodiment, some components in the attached drawings are omitted, enlarged or reduced, which do not represent the dimensions of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the attached drawings may be omitted. The positional relationships described in the attached drawings are only for illustrative purposes and should not be construed as limitations on this patent.

[0030] In the attached drawings of the embodiments of the present utility model, the same or similar reference numerals correspond to the same or similar components; in the description of the present utility model, it should be understood that if there are terms such as "upper", "lower", "left", "right", "long", "short", etc. indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the attached drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the attached drawings are only for illustrative purposes and should not be construed as limitations on this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0031] The technical solutions of the present utility model will be further specifically described below through specific embodiments and in conjunction with the attached drawings:

[0032] Embodiment 1

[0033] As Figure 1 、 2 shown in FIGS. 9, this embodiment provides a hand-operated vacuum wine stopper, including a plug seat 1, a hollow suction pipe 2 connected to the middle of the plug seat 1, a piston assembly disposed in the suction pipe 2 and capable of sliding up and down relative to the suction pipe 2, and a valve assembly provided at the bottom of the suction pipe 2. The piston assembly includes a hollow piston rod 31, the piston rod 31 is disposed in the suction pipe 2 and can slide up and down relative to the suction pipe 2, and an air release mechanism capable of controlling the opening of the valve assembly for exhaust is provided in the piston rod 31.

[0034] In the above solution, when there is some red wine left after opening the bottle, the user can use the wine stopper of this embodiment to block the bottle mouth. Specifically, the user can insert the air extraction tube 2 into the wine bottle from the bottle mouth, and at the same time block the bottle mouth with the plug seat 1, and then slide the piston rod 31 up and down to extract the air in the bottle, so that the inside of the bottle reaches a vacuum state, so that the remaining red wine in the bottle is stored in a vacuum state to prevent the red wine from being oxidized. When the user needs to enjoy the remaining red wine next time, the valve assembly can be opened through the air release mechanism in the piston rod 31. At this time, the air outside the bottle will be discharged into the bottle, making the air pressure inside and outside the bottle reach equilibrium, so that the wine stopper can be easily pulled out of the bottle mouth, and the operation of opening the wine stopper is convenient and labor-saving.

[0035] Specifically, a handle 32 is provided at the upper end of the piston rod 31. The handle 32 is located above the plug seat 1. Through the handle 32, it is convenient to operate the piston rod 31 to slide up and down relative to the air extraction tube 2. The piston rod 31 passes through the middle of the plug seat 1. The air release mechanism includes an air release rod 51 provided in the piston rod 31, and the upper end of the air release rod 51 extends outside the upper end of the piston rod 31.

[0036] As Figure 3 、 4 shown, the lower end of the air release rod 51 can control the valve assembly to open for exhaust. Specifically, an air hole 21 is provided at the bottom of the air extraction tube 2. The valve assembly includes an air plug 41 and a first magnetic part 42 connected to the air plug 41. The air plug 41 is arranged in the air extraction tube 2 and is located between the air hole 41 and the piston rod 31, and the air plug 41 can slide up and down in the air extraction tube 2. When the air plug 41 slides down, it can block the air hole 42, and a second magnetic part 52 that can attract the first magnetic part 42 is provided at the lower end of the air release rod 51. When the piston rod 31 is slid down to the bottom position of the air extraction tube 2 and the air release rod 51 drives the second magnetic part 52 to approach the first magnetic part 42, the second magnetic part 52 can attract the first magnetic part 42 and drive the air plug 41 to slide up to open the air hole 21 for exhaust. At this time, when the wine stopper is installed on the bottle mouth and the inside of the bottle is in a vacuum state, the air outside the bottle will be discharged into the bottle from the air hole 21, making the air pressure inside and outside the bottle reach equilibrium, so that the plug seat 1 can be easily pulled out of the bottle mouth.

[0037] In this embodiment, the second magnetic part 52 is a magnetic block, and the first magnetic part 42 is a metal block that can attract the magnetic block. The metal block is fixed to the upper end of the air plug 41. When the magnetic block approaches the metal block, the magnetic block will attract the metal block through its own magnetic attraction force and drive the air plug 41 to slide up to open the air hole 21.

[0038] Embodiment 2

[0039] This embodiment is a further improvement based on the hand-pumped vacuum wine stopper structure of Embodiment 1. The improvement lies in that, as Figure 3 、 4As shown in the figure, the above-mentioned air release rod 51 is slidably arranged inside the piston rod 31. The air release rod 51 can slide up and down relative to the piston rod 31. A return spring 53 is sleeved outside the air release rod 51. A positioning block 511 is arranged on the outside of the air release rod 51. A support platform 313 is arranged on the inner side wall of the piston rod 31 at a position corresponding to the lower part of the positioning block 511. The upper end of the return spring 53 abuts against the positioning block 511, and the lower end of the return spring 53 abuts against the support platform 313 on the inner side wall of the piston rod 31. Without external force, the return spring 53 will push the air release rod 51 to slide upward and reset through its own elastic force. At this time, there is a certain distance between the lower end of the air release rod 51 and the inner bottom of the piston rod 31, so that there is a certain distance between the magnetic block and the metal block of the air release rod 51, ensuring that the magnetic block cannot attract the metal block at this time, thus avoiding the non-artificial opening of the air hole 21 for exhaust by the air plug 41.

[0040] As Figure 5 , 6 shown in the figure, when the piston rod 31 is slid downward to the bottom position of the suction pipe 2, and then the lower end of the air release rod 51 is slid downward to the bottom position of the piston rod 31, at this time, the magnetic block of the air release rod 51 is close to the metal block at the upper end of the air plug 41, so that the magnetic block attracts the metal block and drives the air plug 41 to slide upward to open the air hole 21.

[0041] As Figure 1 shown in the figure, a button groove 320 is opened in the middle position on the upper surface of the above-mentioned handle 32. The upper end of the above-mentioned air release rod 51 extends out of the upper end of the piston rod 31 and is placed inside the button groove 320 of the handle 32, which can avoid accidentally pressing the air release rod 51 to slide downward and improve the use reliability of the wine stopper.

[0042] As Figure 3 , 4As shown in the figure, the above-mentioned valve assembly further includes a guide sleeve 43 disposed in the air extraction pipe 2. The air plug 41 is sleeved in the guide sleeve 43 and can slide up and down relative to the guide sleeve 43 to improve the sliding stability of the air plug 41. The bottom of the above-mentioned air extraction pipe 2 is provided with a bottom cover 22. The bottom cover 22 is composed of a bottom cover bottom wall 221 and a bottom cover side wall 222 provided on the upper side edge of the bottom cover bottom wall 221. The air hole 21 is opened in the middle of the bottom cover bottom wall 221. The bottom cover side wall 222 is tightly fitted or clamped with the inner side of the lower end of the air extraction pipe 2. The guide sleeve 43 is sleeved inside the bottom cover side wall 222. When the bottom cover 22 needs to be disassembled, it is necessary to forcefully pull the bottom cover 22 out from the lower end of the air extraction pipe 2. After the bottom cover 22 is disassembled and separated, it is also convenient for the disassembly and assembly operations of the guide sleeve 43 and the air plug 41 with the bottom cover 22; in addition, the bottom cover side wall 222 is tightly fitted or clamped with the inner side of the lower end of the air extraction pipe 2, so that the bottom cover 22 will not fall off during the air extraction and air release operations. In addition, a second sealing ring groove 23 is opened on the outer side wall of the above-mentioned bottom cover side wall 222, and a second sealing ring 231 is sleeved in the second sealing ring groove 23. The second sealing ring 231 can improve the sealing performance between the bottom cover side wall 222 and the inner side of the air extraction pipe 2. A sealing gasket 44 is provided on the above-mentioned bottom cover bottom wall 221. The air hole 21 is aligned with the hollow position of the sealing gasket 44. A groove 411 is provided on the lower end surface of the air plug 41. When the air plug 41 slides downward, the periphery of the groove opening of the groove 411 abuts against the sealing gasket 44. By opening the groove 411 on the lower end surface of the air plug 41, the lower end of the air plug 41 can be more easily deformed, so that the lower end of the air plug 41 abuts more tightly against the sealing gasket 44, so as to improve the sealing performance of the air plug 41 to the air hole 21.

[0043] Embodiment III

[0044] This embodiment is a further improvement based on the hand-pumped vacuum wine stopper structure of Embodiment II. The improvement lies in that, as Figure 3 、 4 shown, a first sealing ring groove 311 is provided on the outer side wall of the above-mentioned piston rod 31. A first sealing ring 33 is sleeved in the first sealing ring groove 311. The width of the first sealing ring groove 311 is greater than the thickness of the first sealing ring 33, and an air passing hole 312 is also opened on the groove wall of the first sealing ring groove 311. When the piston rod 31 moves upward, the first sealing ring 33 abuts against the lower side wall of the first sealing ring groove 311. At this time, the upper side part of the air passing hole 312 is exposed above the first sealing ring 33; when the piston rod 31 moves downward, the first sealing ring 33 abuts against the upper side wall of the first sealing ring groove 311. At this time, the lower side part of the air passing hole 312 is exposed below the first sealing ring 33.

[0045] When the hand-pumped vacuum wine stopper of this embodiment is used, when the air in the bottle needs to be extracted, the air extraction pipe 2 can be first inserted into the wine bottle from the bottle mouth, and at the same time, the bottle mouth is blocked by the plug seat 1, so as to install the wine stopper on the bottle mouth, as Figure 7 、 8As shown, then pull the handle 32 to drive the piston rod 31 to move upward. The first sealing ring 33 is pressed against the lower side wall of the first sealing ring groove 311 under the action of the downward frictional force of the inner side wall of the air extraction pipe 2. At this time, the upper part of the air passing hole 312 is exposed above the first sealing ring 33. Since the first sealing ring 33 is pressed against the lower side wall of the first sealing ring groove 311 and the inner side wall of the air extraction pipe 2 to reach a sealed state, the air passing hole 312 is isolated, so that the outside air of the bottle cannot enter the air extraction pipe 2 through the air passing hole 312 and the first sealing ring 33. At the same time, the air in the bottle will forcibly push the air plug 41 to slide upward to open the air hole 21, so that the air in the bottle is discharged into the space corresponding to the first sealing ring 33 and the air plug 41 on the inner side of the air extraction pipe 2; as Figure 3 , 4 shown, and when the handle 32 is pushed to drive the piston rod 31 to move downward, the first sealing ring 33 is pressed against the upper side wall of the first sealing ring groove 311 under the action of the upward frictional force of the inner side wall of the air extraction pipe 2. At this time, the lower part of the air passing hole 312 is exposed below the first sealing ring 33, which is equivalent to the air passing hole 312 communicating with the space corresponding to the first sealing ring 33 and the air plug 41 on the inner side of the air extraction pipe 2. At the same time, the air plug 41 slides downward and resets under the action of air pressure to block the air hole 21. At this time, the air in the air extraction pipe 2 corresponding to the space between the first sealing ring 33 and the air plug 41 is compressed by the piston rod 31 and will be discharged out of the bottle through the air passing hole 312. In this way, part of the air in the bottle can be pumped out of the bottle. After repeating the above operations many times, all the air in the bottle can be pumped out, so that the inside of the bottle reaches a vacuum state.

[0046] And when it is necessary to disassemble and separate the wine stopper from the bottle mouth, as Figure 5 , 6 shown, the air release rod 51 can be pressed to slide downward, so that the magnet block approaches the metal block and attracts the metal block to drive the air plug 41 to slide upward to open the air hole 21. Since the inside of the bottle is in a negative pressure state, the outside air of the bottle will be discharged into the bottle through the air hole 21 at this time, so that the air pressure inside and outside the bottle reaches balance, and thus the wine stopper can be easily pulled out of the bottle mouth.

[0047] As a preferred solution of this embodiment, the above air passing hole 213 penetrates through the inner and outer side walls of the piston rod 31, so that the air in the air extraction pipe 2 corresponding to the space between the first sealing ring 33 and the air plug 41 can be discharged out of the bottle upward through the gap between the inner side wall of the piston rod 31 and the air release rod 51. In addition, an inner plug 12 matching the bottle mouth is further provided in the plug seat 1. The inner plug 12 is sleeved outside the air extraction pipe 2, and the bottle mouth can be better sealed through the inner plug 12 to improve the sealing performance of the wine stopper to the bottle mouth.

[0048] Obviously, the above embodiments of the present utility model are merely examples for clearly illustrating the present utility model, rather than limitations on the implementation manners of the present utility model. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the claims of the present utility model.

Claims

1. A hand-operated vacuum wine stopper, characterized in that: It includes a socket (1), a hollow air extraction pipe (2) connected to the middle of the socket (1), a piston assembly disposed inside the air extraction pipe (2) and capable of sliding up and down relative to the air extraction pipe (2). A valve assembly is provided at the bottom of the air extraction pipe (2). The piston assembly includes a hollow piston rod (31). The piston rod (31) is disposed inside the air extraction pipe (2) and can slide up and down relative to the air extraction pipe (2). An air release mechanism capable of controlling the valve assembly to open for exhaust is provided inside the piston rod (31).

2. The hand-operated vacuum wine stopper according to claim 1, wherein: A handle (32) is provided at the upper end of the piston rod (31). The handle (32) is located above the socket (1). The piston rod (31) passes through the middle of the socket (1). The air release mechanism includes an air release rod (51) disposed inside the piston rod (31). The upper part of the air release rod (51) extends out of the piston rod (31), and the lower end of the air release rod (51) can control the valve assembly to open for exhaust.

3. The hand-operated vacuum wine stopper according to claim 2, characterized in that: An air hole (21) is provided at the bottom of the air extraction pipe (2). The valve assembly includes an air plug (41) and a first magnetic part (42) connected to the air plug (41). The air plug (41) is disposed inside the air extraction pipe (2) and is located between the air hole (21) and the piston rod (31), and the air plug (41) can slide up and down inside the air extraction pipe (2). When the air plug (41) slides downward, it can block the air hole (21). A second magnetic part (52) capable of attracting the first magnetic part (42) is provided at the lower end of the air release rod (51). When the air release rod (51) drives the second magnetic part (52) to approach the first magnetic part (42), the second magnetic part (52) can attract the first magnetic part (42) to drive the air plug (41) to slide upward to open the air hole (21) for exhaust.

4. The hand-operated vacuum wine stopper according to claim 3, wherein: The second magnetic part (52) is a magnetic block, and the first magnetic part (42) is a metal block capable of attracting the magnetic block. The first magnetic part (42) is fixed to the upper end of the air plug (41). The valve assembly further includes a guide sleeve (43) disposed inside the air extraction pipe (2). The air plug (41) is disposed inside the guide sleeve (43) and can slide up and down relative to the guide sleeve (43).

5. The hand-pumped vacuum wine stopper according to claim 4, wherein: A bottom cover (22) is provided at the bottom of the air extraction pipe (2). The air hole (21) is opened at the bottom of the bottom cover (22). The side wall of the bottom cover (22) is sleeved on the inner side of the lower end of the air extraction pipe (2), and the guide sleeve (43) is sleeved on the inner side of the bottom cover (22).

6. The hand-operated vacuum wine stopper according to claim 5, characterized in that: A sealing washer (44) is padded on the bottom cover (22). The air hole (21) is aligned with the hollow position of the sealing washer (44). A groove (411) is provided on the lower end surface of the air plug (41). When the air plug (41) slides downward, the periphery of the groove opening of the groove (411) abuts against the sealing washer (44).

7. The hand-operated vacuum wine stopper according to claim 3, characterized in that: A return spring (53) is sleeved on the outside of the air release rod (51). A positioning block (511) is provided on the outside of the air release rod (51). The upper end of the return spring (53) abuts against the positioning block (511), and the lower end abuts against the inner side wall of the piston rod (31).

8. The hand-operated vacuum wine stopper according to claim 3, wherein: A first sealing ring groove (311) is provided on the outer side wall of the piston rod (31). A first sealing ring (33) is sleeved in the first sealing ring groove (311). The width of the first sealing ring groove (311) is greater than the thickness of the first sealing ring (33). An air vent hole (312) is further formed in the groove wall of the first sealing ring groove (311). When the piston rod (31) moves upward, the first sealing ring (33) abuts against the lower side wall of the first sealing ring groove (311). At this time, the upper part of the air vent hole (312) is exposed above the first sealing ring (33). When the piston rod (31) moves downward, the first sealing ring (33) abuts against the upper side wall of the first sealing ring groove (311). At this time, the lower part of the air vent hole (312) is exposed below the first sealing ring (33).

9. The hand-operated vacuum wine stopper according to claim 8, characterized in that: The air vent hole (312) penetrates through the inner and outer side walls of the piston rod (31).

10. The hand-operated vacuum wine stopper according to any one of claims 1-9, characterized in that: An inner plug (12) matching the bottle mouth is further provided in the plug seat (1). The inner plug (12) is sleeved on the outer side of the air extraction pipe (2).

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