A locking plate-type wine spear that is easy to install quickly

Abstract

The invention discloses a plate-type wine spear with a lock type that is easy to install quickly, and relates to the technical field of plate-type wine spears, comprising a wine spear body, wherein an upper end cover is arranged at the upper end of the wine spear body, and a clamping ring is fixedly connected to the outer side of the lower end of the upper end cover, and a fixing ring is fixedly connected to the outer side of the wine spear body, and a rotating ring is threadedly connected to the outer side of the wine spear body. The plate-type wine spear with a lock type that is easy to install quickly, after the clamping ring arranged at the lower side of the upper end cover contacts the upper surface of the fixing ring, the rotating ring can be rotated, and at this time, the rotating ring moves downward along the wine spear body under the action of the thread, and when the rotating ring moves downward, the outer side of the rotating ring will gradually contact the inner side of the lower end of the clamping plate, and resist the clamping plate, so that the clamping plate rotates along the fixed axis, and when the clamping plate is rotating, the upper end of the clamping plate will rotate to be clamped to the top of the clamping ring, and the clamping plate can fix the clamping ring, thereby preventing the clamping ring from being loosened during the use of the wine spear body.

Description

Technical Field

[0001] The invention relates to the technical field of plate-type wine spears, in particular to a locking plate-type wine spear which is easy to quickly install. Background Art

[0002] The plate-type beer spear is a beer dispensing valve for a draft beer barrel. It is used in the beer dispensing process of a draft beer barrel. The plate-type beer spear is a special beer dispensing valve for a draft beer barrel. It is combined with the thread seal of the draft beer barrel neck through a specific design and cooperates with the same type of filling line and dispenser to achieve beer filling and dispensing. The plate-type beer spear is widely used in beer brewing, bars, restaurants and other places. It is an important accessory for dispensing beer from a draft beer barrel. In the market, the prices of plate-type beer spears of different brands and models vary. Users can choose the appropriate product according to their own needs;

[0003] The existing beer spear cannot release the pressure inside the beer barrel during use. When in use, the air pressure inside the beer spear is too high, causing a large amount of beer to be discharged, reducing the stability of beer discharge and causing a waste of resources.

[0004] In order to overcome the above defects, prior art 1 (publication number: CN221420690U, Chinese patent with publication date of 2024-07-26) has a wine spear with a one-way valve structure, including a wine spear body, a wine spear cover is arranged on the wine spear body, a sealing ring is arranged at the lower end of the wine spear cover, a first wine spear seat is arranged at the lower end of the sealing ring, a wine valve is arranged in the first wine spear seat, a pressure relief hole is arranged in the wine valve, a pressure relief valve is installed in the pressure relief hole, the pressure relief valve is opened by rotating the manual nut outward, air leaks through the pressure relief hole, the pressure of the wine spear body is relieved, the wine suction tube is limited and fixed by the inner tube limit spring, and the stability of the wine suction tube is improved. The wine valve limit spring further plays a supporting and limiting role, which is beneficial to the maintenance of the wine spear body, improves the stability of wine discharge, and avoids safety accidents. Air leakage through the pressure relief hole can relieve the pressure on the wine spear body, which is beneficial to the maintenance of the wine spear body. The sediment inside the beer can be filtered through the filter net to improve the purity of the beer and increase the practicality of the wine spear body. The wine valve limit spring plays a supporting and limiting role on the bottom of the wine valve. By pressing the pressing rod, the reset spring is compressed, and the clamping block is pushed to clamp the wine valve. The left and right sides of the wine valve are limited and fixed, which plays a role of further sealing the wine spear body.

[0005] There is also prior art 2 (publication number: CN215972956U, Chinese patent published on 2022-03-08) a wine spear, including a wine spear cover, a wine outlet conduit and a wine outlet conduit base, the wine outlet conduit base is connected to the wine spear cover to form an installation space, the wine outlet conduit is arranged in the installation space and the bottom end passes through the wine outlet conduit base and protrudes out of the installation space, the wine spear cover is provided with an opening at the top position of the wine outlet conduit, the upper end of the wine outlet conduit is fixedly provided with a wide-diameter installation sleeve, and a sealing assembly is provided The wine outlet conduit is sealed by a component and the wine outlet conduit is also controlled by the component. The sealing component has a simple structure. The wine plug head, the pressure spring and the wine plug head seal of the sealing component cooperate with the mounting sleeve connected and fixed to the wine outlet conduit to increase the wine outlet space, and the wine plug head seal is interference fit with the mounting sleeve to improve the sealing effect. The sealing component has a simple structure and is an integrated structure with the wine outlet conduit, which improves the overall pressure resistance effect. In addition, a dust cover is also provided on the wine spear cover to prevent dust and liquid leakage. The utility model has a simple structure, simplifies product components, and improves assembly efficiency.

[0006] Although the existing technologies 1 and 2 can release the pressure inside the beer barrel, the steps of assembling the beer spear are complicated and the installation is inconvenient. At the same time, the sealing performance of the assembly of the existing beer spear is poor during use.

[0007] Therefore, we propose a locking plate-type wine spear that is easy to install quickly to solve the above-mentioned problems. Summary of the invention

[0008] The object of the present invention is to provide a locking plate-type wine spear that is easy to install and quick, so as to solve the problem that the assembly process in the current market is relatively complicated and the installation is inconvenient, and the existing wine spear has poor sealing during use.

[0009] To achieve the above object, the present invention provides the following technical solution: a locking plate-type wine spear that is easy to install quickly, comprising a wine spear body, an upper end cover is provided at the upper end of the wine spear body, a clamping ring is fixedly connected to the outer side of the lower end of the upper end cover, and a fixing ring is fixedly connected to the outer side of the wine spear body;

[0010] A rotating ring, wherein the rotating ring is threadedly connected to the outer side of the wine spear body, and a rotating structure capable of engaging and limiting the clamping ring is provided between the outer end of the rotating ring and the inner side of the fixed ring;

[0011] A storage groove is provided on the outside of the wine spear body, a pressure relief hole is provided at the center of the storage groove, and a pressure relief plate is nested and connected inside the storage groove, and a reset mechanism for covering the pressure relief hole is provided between the inner side of the pressure relief plate and the wine spear body, and the pressure relief plate can cover the pressure relief hole to reduce the possibility of dust entering the barrel and contaminating the wine barrel.

[0012] Preferably, a wine valve is provided inside the top end of the wine spear body, a carbon dioxide valve is fixedly connected to the inner lower side of the upper end cover, and the lower end of the carbon dioxide valve is nested and connected to the top end of the wine spear body, and a first spring is fixedly connected between the lower side of the upper end cover and the upper surface of the fixing ring, and the first spring is wound around the outer side of the wine spear body.

[0013] Preferably, the rotating structure includes a fixed shaft, the fixed shaft is fixedly connected to the side of the fixed ring, and a clamping plate is nested and connected to the outer side of the fixed shaft, and a torsion spring is fixedly connected between the outer end of the clamping plate and the fixed ring, and the torsion spring is wound around the outer side of the fixed shaft, the clamping plate can fix the clamping ring, thereby preventing the clamping ring from loosening during the use of the wine spear body, and the clamping plate will rotate and unfold along the fixed shaft driven by the elastic force of the torsion spring, thereby not fixing the clamping ring, and the wine spear body can be quickly disassembled at this time.

[0014] Preferably, the inner side of the lower side of the clamping plate is designed with an inclined structure, and the lower end of the clamping plate is located on the outer side of the rotating ring, and the outer side of the rotating ring is designed with an inclined structure.

[0015] Preferably, the card plate forms a rotating structure with a fixed ring and a fixed shaft, and the card plate forms an elastic structure with a fixed ring through a torsion spring, and the clamping ring is clamped on the inner side of the card plate. When the rotating ring moves downward, the outer side of the rotating ring will gradually contact the inner side of the lower end of the card plate, thereby contacting the lower end of the card plate, so that the card plate rotates along the fixed shaft.

[0016] Preferably, a first airbag is fixedly connected to the wine spear body, and a connecting tube is penetrated through the upper end of the first airbag, and a second airbag is penetrated through the upper end of the connecting tube, and the inner side of the second airbag is fixedly connected to the wine spear body, and the outer side of the expanded second airbag contacts the inner wall of the clamping ring, thereby further improving the sealing performance of the wine spear body during assembly.

[0017] Preferably, the second airbag is located above the fixing ring, and the outer side of the second airbag is in contact with the inner side of the clamping ring, and the first airbag is located below the fixing ring.

[0018] Preferably, the reset mechanism includes a limiting hole, the limiting hole is opened on the outer side of the wine spear body, and a sliding rod is nested and connected inside the limiting hole, and a pressure relief plate is fixedly connected to the outer end of the sliding rod, a reset spring is fixedly connected between the inner side of the pressure relief plate and the wine spear body, and the reset spring is wound around the outer side of the sliding rod, and the pressure pushes the pressure relief plate to drive the sliding rod to move outward along the limiting hole, so that the pressure is better discharged outward.

[0019] Preferably, the sliding rod is arranged at the four corners of the pressure relief plate, and the sliding rod forms a sliding structure through the pressure relief plate and the limiting hole, and the pressure relief plate forms an elastic structure with the wine spear body through the reset spring. Driven by the elastic force of the reset spring, the pressure plate can drive the sliding rod to move inward, thereby driving the pressure relief plate to reset and be stored inside the storage groove.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] (1) The upper end cover can be used to protect and shield the carbon dioxide valve, the wine valve and the first spring, and the fixing ring can initially receive the upper end cover, thereby initially limiting the position of the upper end cover. At this time, the initial assembly of the wine spear body can be completed;

[0022] (2) After the clamping ring provided on the lower side of the upper end cover contacts the upper surface of the fixed ring, the rotating ring can be manually rotated. At this time, the rotating ring moves downward along the wine spear body under the action of the thread. When the rotating ring moves downward, the outer side of the rotating ring gradually contacts the inner side of the lower end of the clamping plate, thereby abutting against the lower end of the clamping plate, so that the clamping plate rotates along the fixed axis. When the clamping plate rotates, the upper end of the clamping plate rotates to engage with the upper side of the clamping ring. At this time, the clamping plate can fix the clamping ring, thereby preventing the clamping ring from loosening during the use of the wine spear body.

[0023] (3) When the wine spear body needs to be disassembled, the rotating ring can be manually rotated upward. At this time, the rotating ring does not interfere with the clamping plate, and the clamping plate is not subjected to force. The clamping plate will rotate and unfold along the fixed axis under the elastic force of the torsion spring, so that the clamping ring is not fixed. At this time, the wine spear body can be quickly disassembled;

[0024] (4) When the rotating ring moves downward, it will squeeze the first airbag synchronously. At this time, the gas inside the first airbag will be transported to the inside of the second airbag through the connecting pipe under the squeezing effect of the rotating ring, so that the second airbag will expand. At this time, the outer side of the expanded second airbag contacts the inner wall of the clamping ring, further improving the sealing performance of the wine spear body during assembly;

[0025] (5) When the internal pressure of the wine barrel is high due to fermentation, the pressure will be discharged outward through the pressure relief hole. At this time, the pressure will synchronously push the pressure relief plate to drive the slide bar to move outward along the limit hole, so that the pressure can be discharged outward better. When the internal pressure of the wine barrel returns to normal, the pressure relief plate can drive the slide bar to move inward under the elastic force of the reset spring, thereby driving the pressure relief plate to reset and store it inside the storage slot. At this time, the pressure relief plate can cover the pressure relief hole to reduce the possibility of dust entering the barrel and contaminating the wine barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the three-dimensional unfolded structure of the present invention;

[0028] Figure 3 It is a schematic diagram of the three-dimensional structure of the fixing ring of the present invention;

[0029] Figure 4 It is a schematic diagram of the three-dimensional structure of the clamp ring of the present invention;

[0030] Figure 5 It is a schematic diagram of the three-dimensional cross-sectional structure of the clamp ring of the present invention;

[0031] Figure 6 This is a schematic diagram of the three-dimensional structure of the card board of the present invention;

[0032] Figure 7 It is a schematic diagram of the three-dimensional structure of the first airbag of the present invention;

[0033] Figure 8 It is a schematic diagram of the three-dimensional structure of the pressure relief plate of the present invention;

[0034] Fig. 9 It is a schematic diagram of the three-dimensional structure of the sliding rod of the present invention.

[0035] In the figure: 1. Wine spear body; 2. Upper end cover; 3. Carbon dioxide valve; 4. Wine valve; 5. First spring; 6. Pressure relief plate; 7. Rotating ring; 8. Fixed ring; 9. Clamping plate; 10. Clamping ring; 11. Fixed shaft; 12. Torsion spring; 13. First airbag; 14. Second airbag; 15. Connecting pipe; 16. Storage groove; 17. Pressure relief hole; 18. Limiting hole; 19. Reset spring; 20. Sliding rod. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Embodiment 1: Figure 1 , Figure 2 and Figure 3 The technical solution shown in the figure, the present invention provides the following technical solution: a locking plate-type wine spear that is easy to install quickly, discloses an upper end cover 2, and the internal parts can be protected by the upper end cover 2:

[0038] A wine spear body 1, wherein an upper end cover 2 is disposed at the upper end of the wine spear body 1, and a clamping ring 10 is fixedly connected to the outer side of the lower end of the upper end cover 2, and a fixing ring 8 is fixedly connected to the outer side of the wine spear body 1;

[0039] A wine valve 4 is provided inside the top end of the wine spear body 1, a carbon dioxide valve 3 is fixedly connected to the lower side of the inner part of the upper end cover 2, and the lower end of the carbon dioxide valve 3 is nested and connected to the top end of the wine spear body 1, and a first spring 5 is fixedly connected between the lower side of the upper end cover 2 and the upper surface of the fixing ring 8, and the first spring 5 is wound around the outer side of the wine spear body 1.

[0040] The upper end cover 2 can be used to protect, shield and assemble the carbon dioxide valve 3, the wine valve 4 and the first spring 5. At the same time, the fixing ring 8 can preliminarily support the upper end cover 2, thereby preliminarily limiting the position of the upper end cover 2. At this time, the preliminary assembly of the wine spear body 1 can be completed.

[0041] Embodiment 2: Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6 The technical solution shown in the figure, the present invention provides the following technical solution: a locking plate-type wine spear that is easy to install quickly, discloses a rotating structure, and the wine spear body 1 can be assembled more stably through the rotating structure:

[0042] A rotating ring 7, the rotating ring 7 is threadedly connected to the outer side of the wine spear body 1, and a rotating structure capable of engaging and limiting the clamping ring 10 is provided between the outer end of the rotating ring 7 and the inner side of the fixed ring 8;

[0043] The rotating structure includes a fixed shaft 11, which is fixedly connected to the side of the fixed ring 8, and a card plate 9 is nested and connected to the outside of the fixed shaft 11, and a torsion spring 12 is fixedly connected between the outer end of the card plate 9 and the fixed ring 8, and the torsion spring 12 is wound around the outside of the fixed shaft 11, the lower inner side of the card plate 9 is designed in an inclined structure, and the lower end of the card plate 9 is located on the outside of the rotating ring 7, and the outside of the rotating ring 7 is designed in an inclined structure, the card plate 9 forms a rotating structure with the fixed shaft 11 through the fixed ring 8, and the card plate The plate 9 forms an elastic structure with the fixing ring 8 through the torsion spring 12, and the snap ring 10 is snapped on the inner side of the snap plate 9. The first airbag 13 is fixedly connected to the wine spear body 1, and the upper end of the first airbag 13 is penetrated by a connecting pipe 15, and the upper end of the connecting pipe 15 is penetrated by a second airbag 14, and the inner side of the second airbag 14 is fixedly connected to the wine spear body 1, the second airbag 14 is located above the fixing ring 8, and the outer side of the second airbag 14 is in contact with the inner side of the snap ring 10, and the first airbag 13 is located on the lower side of the fixing ring 8.

[0044] After the clamping ring 10 provided on the lower side of the upper end cover 2 contacts the upper surface of the fixing ring 8, the rotating ring 7 can be manually rotated. At this time, the rotating ring 7 moves downward along the wine spear body 1 under the action of the thread. When the rotating ring 7 moves downward, the outer side of the rotating ring 7 will gradually contact the inner side of the lower end of the clamping plate 9, thereby contacting the lower end of the clamping plate 9, so that the clamping plate 9 rotates along the fixed axis 11. When the clamping plate 9 is in the process of rotating, the upper end of the clamping plate 9 will rotate to be engaged with the upper side of the clamping ring 10. At this time, the clamping plate 9 can fix the clamping ring 10, thereby preventing the clamping ring 10 from loosening during the use of the wine spear body 1. When the wine spear body 1 needs to be disassembled, the rotating ring 7 can be manually rotated and moved up. At this time, the rotating ring 7 does not conflict with the clamping plate 9, and the clamping plate 9 is not subjected to force at this time. The clamping plate 9 will rotate and unfold along the fixed axis 11 under the driving force of the elastic force of the torsion spring 12, thereby not fixing the clamping ring 10, and the wine spear body 1 can be quickly disassembled.

[0045] When the rotating ring 7 moves downward, it will synchronously squeeze the first airbag 13. At this time, the gas inside the first airbag 13 will be transported to the inside of the second airbag 14 through the connecting tube 15 under the squeezing action of the rotating ring 7, so that the second airbag 14 will expand. At this time, the outer side of the expanded second airbag 14 is in contact with the inner wall of the clamping ring 10, further improving the sealing performance of the wine spear body 1 during assembly.

[0046] Embodiment 3: Figure 1 , Figure 3 , Figure 7 , Figure 8 and Fig. 9The technical solution shown in the figure, the present invention provides the following technical solution: a locking plate-type wine spear that is easy to install quickly, discloses a reset mechanism, and the pressure relief hole 17 can be shielded by the reset mechanism:

[0047] A storage groove 16 is provided on the outside of the wine spear body 1, and a pressure relief hole 17 is provided at the center of the storage groove 16, and a pressure relief plate 6 is nested and connected inside the storage groove 16, and a reset mechanism for covering the pressure relief hole 17 is provided between the inner side of the pressure relief plate 6 and the wine spear body 1;

[0048] The reset mechanism includes a limiting hole 18, which is opened on the outer side of the wine spear body 1, and a slide rod 20 is nested inside the limiting hole 18, and the outer end of the slide rod 20 is fixedly connected to the pressure relief plate 6, a reset spring 19 is fixedly connected between the inner side of the pressure relief plate 6 and the wine spear body 1, and the reset spring 19 is wound around the outer side of the slide rod 20, the slide rod 20 is arranged at the four corners of the pressure relief plate 6, and the slide rod 20 forms a sliding structure with the limiting hole 18 through the pressure relief plate 6, and the pressure relief plate 6 forms an elastic structure with the wine spear body 1 through the reset spring 19.

[0049] When the internal pressure of the wine barrel is relatively high due to fermentation, the pressure will be discharged outward through the pressure relief hole 17. At this time, the pressure synchronously pushes the pressure relief plate 6 to drive the slide bar 20 to move outward along the limiting hole 18, so that the pressure can be discharged outward better. When the internal pressure of the wine barrel returns to normal, the pressure relief plate 6 can drive the slide bar 20 to move inward under the elastic force of the reset spring 19, thereby driving the pressure relief plate 6 to reset and be stored in the storage groove 16. At this time, the pressure relief plate 6 can block the pressure relief hole 17 to reduce the possibility of dust entering the barrel and contaminating the wine barrel.

[0050] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A locking plate-type wine spear that is easy to quickly install, comprising a wine spear body (1), wherein an upper end cover (2) is provided at the upper end of the wine spear body (1), a clamping ring (10) is fixedly connected to the outer side of the lower end of the upper end cover (2), and a fixing ring (8) is fixedly connected to the outer side of the wine spear body (1); It is characterized in that Also includes: A rotating ring (7) is threadedly connected to the outer side of the wine spear body (1), and a rotating structure capable of engaging and limiting the clamping ring (10) is arranged between the outer end of the rotating ring (7) and the inner side of the fixed ring (8), and the rotating structure comprises a fixed shaft (11), the fixed shaft (11) is fixedly connected to the side of the fixed ring (8), and a clamping plate (9) is nested and connected to the outer side of the fixed shaft (11), and a torsion spring (12) is fixedly connected between the outer end of the clamping plate (9) and the fixed ring (8), and the torsion spring (12) is wound around The first airbag (13) is arranged outside the fixed shaft (11), the wine spear body (1) is fixedly connected to the first airbag (13), the upper end of the first airbag (13) is penetrated by a connecting tube (15), the upper end of the connecting tube (15) is penetrated by a second airbag (14), and the inner side of the second airbag (14) is fixedly connected to the wine spear body (1), the second airbag (14) is located above the fixing ring (8), the outer side of the second airbag (14) is in contact with the inner side of the clamping ring (10), and the first airbag (13) is located below the fixing ring (8); A storage groove (16), wherein the storage groove (16) is provided on the outside of the wine spear body (1), a pressure relief hole (17) is provided at the center of the storage groove (16), a pressure relief plate (6) is nested and connected inside the storage groove (16), and a reset mechanism capable of shielding the pressure relief hole (17) is provided between the inner side of the pressure relief plate (6) and the wine spear body (1); The rotating ring (7) moves downward along the wine spear body (1) under the action of the thread. When the rotating ring (7) moves downward, the outer side of the rotating ring (7) gradually contacts the inner side of the lower end of the clamping plate (9), thereby abutting against the lower end of the clamping plate (9), so that the clamping plate (9) rotates along the fixed axis (11). When the clamping plate (9) rotates, the upper end of the clamping plate (9) rotates to engage with the upper side of the clamping ring (10), and at this time, the clamping plate (9) can fix the clamping ring (10); When the rotating ring (7) moves downward, it will synchronously squeeze the first airbag (13). At this time, the gas inside the first airbag (13) will be transported to the inside of the second airbag (14) through the connecting pipe (15) under the squeezing action of the rotating ring (7), so that the second airbag (14) will expand. At this time, the outer side of the expanded second airbag (14) will contact the inner wall of the clamping ring (10).

2. The locking plate-type wine spear that is easy to install quickly according to claim 1, characterized in that: A wine valve (4) is arranged inside the top end of the wine spear body (1), a carbon dioxide valve (3) is fixedly connected to the lower side of the inner part of the upper end cover (2), and the lower end of the carbon dioxide valve (3) is nested and connected to the top end of the wine spear body (1), and a first spring (5) is fixedly connected between the lower side of the upper end cover (2) and the upper surface of the fixing ring (8), and the first spring (5) is wound around the outer side of the wine spear body (1).

3. The locking plate-type wine spear that is easy to install quickly according to claim 1, characterized in that: The inner side of the lower side of the clamping plate (9) is designed to be an inclined structure, and the lower end of the clamping plate (9) is located outside the rotating ring (7), and the outer side of the rotating ring (7) is designed to be an inclined structure.

4. The locking plate-type wine spear that is easy to install quickly according to claim 1, characterized in that: The clamping plate (9) forms a rotating structure through a fixing ring (8) and a fixing shaft (11), and the clamping plate (9) forms an elastic structure through a torsion spring (12) and a fixing ring (8), and the clamping ring (10) is clamped on the inner side of the clamping plate (9).

5. The locking plate-type wine spear that is easy to install quickly according to claim 1, characterized in that: The reset mechanism comprises a limit hole (18), the limit hole (18) is formed on the outer side of the wine spear body (1), and a slide rod (20) is nested and connected inside the limit hole (18), and a pressure relief plate (6) is fixedly connected to the outer end of the slide rod (20), a reset spring (19) is fixedly connected between the inner side of the pressure relief plate (6) and the wine spear body (1), and the reset spring (19) is wound around the outer side of the slide rod (20).

6. The locking plate-type wine spear that is easy to install quickly according to claim 5, characterized in that: The slide rod (20) is arranged at the four corners of the pressure relief plate (6), and the slide rod (20) forms a sliding structure through the pressure relief plate (6) and the limiting hole (18), and the pressure relief plate (6) forms an elastic structure with the wine spear body (1) through the return spring (19).

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