A beverage machine

Abstract

The present invention provides a beverage machine, which belongs to the technical field of drinking equipment. It solves the problem of poor sanitation of existing beverage machines. The beverage machine with this improved structure includes a barrel body fixing seat for connecting a beverage barrel, a support frame connected to and used for supporting the barrel body fixing seat is provided below the barrel body fixing seat, the support frame has an annular liquid receiving trough, and the support frame is also provided with a drainage channel for discharging waste liquid connected to the liquid receiving trough, a liquid drop port is provided on the barrel body fixing seat, and the liquid drop port and the inlet of the drainage channel are staggered in the vertical projection direction, and the bottom of the liquid receiving trough also has a pressure-guiding surface below the liquid drop port that gradually tilts from the radial outer side to the radial inner side of the liquid receiving trough, and the inlet of the drainage channel is opened on the pressure-guiding surface. The beverage machine with this improved structure can reduce foam residue and ensure hygiene.

Description

Technical Field

[0001] The invention belongs to the technical field of drinking equipment and relates to a beverage machine. Background Art

[0002] With the advancement of the times and the improvement of living standards, people have higher expectations for drinking. Canned and bottled beer can no longer meet people's drinking needs. More and more people prefer to drink fresh, hygienic, and delicious authentic draft beer. This has led to the emergence of a growing number of dispensing devices for draft beer and other beverages, such as draft beer dispensers and beverage dispensers. Among them, beverage dispensers are becoming increasingly popular due to their compactness and portability. Specifically, beverage dispensers can be used in commercial settings such as bars and cafes, as well as in home settings such as parties, allowing users to quickly dispense liquids through beverage dispensers.

[0003] For example, patent application number 201880046145.1 discloses a beverage machine, which includes a body for dispensing, and a plastic container containing wine is inserted into a barrel fixing seat of the body in an inverted manner. Specifically, the head of the plastic container is hemispherical, and a barrel fixing seat with a bowl-shaped cavity for mounting the plastic container is provided on the body. An adapter (i.e., a wine spear) for controlling the inflow and outflow of wine is installed on the plastic container, and a wine outlet valve (i.e., a wine outlet top core) that cooperates with the wine spear is provided at a corresponding position on the body. The wine outlet top core is used to open the inside of the wine spear so that the two are connected, thereby achieving smooth dispensing of the wine.

[0004] Liquid is most likely to drip when the plastic container is removed from the barrel holder or just installed. As the wine spear on the plastic container is pushed open or pulled out, the wine spear may not have fully achieved automatic sealing at this time. In particular, there is high-pressure gas in the plastic container when it is pulled out, which will cause the residual wine or remaining wine inside to spray out toward the barrel holder. Although the amount of spraying is not particularly large, it will produce a lot of foam due to factors such as squeezing. Although the beverage machine is equipped with a drainage trough for collecting liquid, it is often very small and not sealed. There are many electrical components underneath, making it impossible to flush it with water. It is also inconvenient to disassemble it every time the barrel is changed, so there is a hygiene problem. The conventional way to solve the hygiene problem is to minimize leakage, that is, to improve the sealing effect during the plugging and unplugging process to prevent liquid from leaking, or to use antibacterial materials to ensure hygiene. Summary of the Invention

[0005] The purpose of the present invention is to solve the above problems in the existing technology and propose a beverage machine. The present invention aims to solve the problem of poor hygiene of the existing beverage machines.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A beverage machine, comprising a barrel body fixing seat for connecting a beverage barrel, a support frame connected to and used for supporting the barrel body fixing seat is provided below the barrel body fixing seat, the support frame has an annular liquid receiving trough, and the support frame is also provided with a drainage channel connected to the liquid receiving trough for discharging waste liquid, characterized in that a liquid drop port is provided on the barrel body fixing seat, the liquid drop port and the entrance of the drainage channel are staggered in the vertical projection direction, the bottom of the liquid receiving trough also has a pressure-guiding surface below the liquid drop port that gradually inclines from the radial outer side to the radial inner side of the liquid receiving trough, and the entrance of the drainage channel is opened on the pressure-guiding surface.

[0008] This solution provides a drop-out port on the barrel body mounting base, allowing the sprayed liquor to be quickly and conveniently discharged downward through the drop-out port into the liquid receiving trough. However, the sprayed liquor contains a large amount of foam, which is viscous and difficult to discharge, and ultimately remains on the bottom surface of the liquid receiving trough. Once dried, it can easily cause odor and hygiene problems, and is inconvenient to disassemble and clean every time the barrel is changed. This solution provides a structure to assist in eliminating foam, namely, staggering the drop-out port and the inlet of the drainage channel in the vertical projection direction. Therefore, the liquor flowing from the drop-out port does not flow directly out of the drainage channel inlet, but instead flows through the pressure-guiding surface below the drop-out port before being discharged. The pressure-guiding surface gradually slopes from the radially outer side to the radially inner side, which means that the bottom of the liquid receiving trough tends to converge, either radially inward or radially outward. Under the action of gravity, the residual foam can flow and converge along the inclined pressure-guiding surface, where it is squeezed and more easily broken up, further reducing the amount of foam and foam residue, thereby ensuring hygiene. In addition, this solution also sets the pressure-guiding surface in an annular shape. This means that the pressure-guiding surface is not only located directly below the liquid droplet, but also surrounds the entire liquid receiving tank, and the entrance of the drainage channel is opened on the pressure-guiding surface. In this way, no matter which direction the wine flows, it can achieve the pressure-guiding effect of passing through the pressure-guiding surface, effectively eliminating foam, and more conveniently guiding and discharging after converging. In addition, even if water is added for cleaning, just adding a small amount of water can make the water flush along the pressure-guiding surface, achieving a better flushing and cleaning effect.

[0009] In the aforementioned beverage machine, the pressure-guiding surface is arranged at a constant height along its circumference. This means that the pressure-guiding surface is of the same height at all locations on the same circumference. This also means that the pressure-guiding surface does not, like conventional flow-guiding surfaces, tilt from one circumferential end to the other, directly directing the flow toward the drainage channel. Instead, the wine must undergo pressure-guiding, converging, and defoaming processes before it can flow smoothly toward the drainage channel. This effectively avoids the situation where the pressure-guiding surface merely serves as a guide without effectively directing pressure, thereby ensuring enhanced defoaming effectiveness and ensuring hygiene.

[0010] In the aforementioned beverage machine, the pressure-guiding surface gradually slopes downward from the radially outer side to the radially inner side of the liquid receiving tank. The bottom of the liquid receiving tank also has a mating surface that gradually slopes upward from the radially outer side to the radially inner side of the liquid receiving tank, and the mating surface is located inside the pressure-guiding surface. This solution also provides a mating surface that cooperates with the pressure-guiding surface. The mating surface combines with the pressure-guiding surface to form a groove structure similar to a funnel-shaped cross-section. The two sides of the groove structure gradually converge downward, so that whether the wine drops directly from the drop port or is sprayed onto the mating surface, both surfaces can achieve pressure guidance. This effectively eliminates foam and makes it easier to guide and discharge the liquid after converging.

[0011] In the aforementioned beverage machine, the inlet of the drainage channel is located partially on the pressure-guiding surface and partially on the mating surface. Positioning the inlet of the drainage channel partially on the pressure-guiding surface and the other partially on the mating surface, with the pressure-guiding surface and the mating surface disposed opposite each other, means that the inlet of the drainage channel is located at the lowest point of the approximately funnel-shaped groove formed by the pressure-guiding surface and the mating surface. Since the pressure-guiding surface is disposed at a constant height along its circumference, the inlet of the drainage channel being located at the lowest point of the approximately funnel-shaped groove formed by the pressure-guiding surface and the mating surface ensures smooth drainage of the liquor, preventing the height of the drainage channel inlet from being lower than the bottom of the funnel-shaped groove, thereby facilitating smooth drainage of the liquor and preventing odor accumulation and sanitation issues.

[0012] In the beverage machine described above, the arc transition between the pressure-guiding surface and the mating surface can avoid residual dead corners by adopting the arc transition between the two, so that the wine can be discharged as cleanly as possible to avoid hygienic problems.

[0013] In the beverage machine described above, a slender, strip-shaped defoaming groove is further provided on the bottom of the liquid receiving tank. The defoaming groove is located between the pressure-guiding surface and the mating surface, and the pressure-guiding surface and the mating surface are connected via the groove surface of the defoaming groove. A further long, strip-shaped defoaming groove can be further provided on the bottom of the liquid receiving tank. The groove width of the defoaming groove can be as small and thin as possible. In this case, when discharging foam, most of the foam can be defoamed by the pressure-guiding surface and the mating surface, but a small amount of foam will remain and be difficult to eliminate. In this case, the defoaming groove is long and narrow and located at the lowest point of the two surfaces. When the foam slides downward under the action of gravity, it will pass through the defoaming groove or be located above the defoaming groove. At this time, the liquid has been basically drained, so there is basically no liquid in the defoaming groove, only air. When the foam passes through the defoaming groove, it is easily broken due to the presence of air in the defoaming groove. That is, the defoaming groove can achieve a secondary defoaming effect, avoiding excessive residual foam that affects hygiene.

[0014] In the above-mentioned beverage machine, the support frame is provided with a cylindrical air intake connection part for connecting the air intake, and a plurality of defoaming blocks are circumferentially provided on the outer peripheral side of the air intake connection part, and a defoaming gap is formed between adjacent defoaming blocks. Further, defoaming can be assisted by providing defoaming blocks. Of course, the effective time of the defoaming blocks is different from the effective time of the defoaming groove. The defoaming groove is suitable for finally assisting in eliminating the residual foam after the liquid is basically drained. The defoaming block is suitable for the initial stage of liquid splashing, when there is still a lot of liquid, and the liquid flows down or partially flows to the inner side of the liquid receiving tank. At this time, as the liquid is washed, the existence of the defoaming groove and the defoaming gap can be used to stir or disturb the liquid, thereby eliminating part of the foam and avoiding the residual foam from affecting hygiene. Of course, the defoaming block and the air intake connection part here can be an integrated structure or a split structure.

[0015] In the aforementioned beverage dispenser, the defoaming gap is smaller than the horizontal width of the defoaming block, and the defoaming block is formed with several vertical defoaming ridges on the side facing the pressure-guiding surface. By making the defoaming gap smaller, a better defoaming effect can be achieved, similar to the defoaming grooves described above. Furthermore, the vertical defoaming ridges create sharp corners at the corners of the defoaming block, rather than circular arcs, enhancing the defoaming impact effect.

[0016] In the aforementioned beverage machine, the barrel fixing seat is provided with a latching protrusion for engaging with the wine spear on the beverage barrel. The latching protrusion is in the form of a sheet and arranged horizontally, and the liquid outlet is located below the latching protrusion. The latching protrusion engages with the wine spear to connect the wine barrel to the beverage machine. Currently, most wine barrels on the market are assembled and disassembled using a rotational method, and wine leakage from the wine barrel mostly occurs during the assembly and disassembly process, that is, when the wine spear engages or exits the latching protrusion. The position of the wine spear outlet is basically lower than that of the latching protrusion. In this solution, the liquid outlet is arranged below the latching protrusion, so that the high-impact sprayed wine can be at least partially blocked and initially defoamed by the latching protrusion. The latching protrusion achieves dual purposes, reducing the flow rate of the wine and increasing the subsequent interaction time between the wine and the pressure-guiding surface to improve the defoaming effect and reduce residue, thereby ensuring hygiene. Of course, the horizontal arrangement of the latching protrusion here does not mean that its upper and lower surfaces must be completely horizontal, but rather that its overall trend is arranged in the horizontal direction.

[0017] In the aforementioned beverage machine, the shape of the liquid outlet is consistent with that of the protrusion, and the vertical projection of the liquid outlet covers the protrusion. This arrangement allows most of the liquid blocked by the protrusion to flow smoothly and directly downward, ensuring smooth discharge and avoiding liquid accumulation.

[0018] Compared with the prior art, the present invention has the following technical effects:

[0019] 1. By setting a structure to assist in eliminating foam, that is, staggering the liquid outlet and the entrance of the drainage channel in the vertical projection direction, the wine flowing from the liquid outlet flows through the pressure-guiding surface below the liquid outlet before being discharged. The residual foam can flow and converge along the inclined pressure-guiding surface or the matching surface under the action of gravity, and is squeezed by each other and is more easily broken, thereby further reducing the amount of foam, reducing foam residue, and ensuring hygiene.

[0020] 2. The pressure-guiding surface is arranged at the same height along its circumference, and the pressure-guiding surface is arranged around the entire liquid receiving tank, and the inlet opening of the drainage channel is located on the pressure-guiding surface and partly on the matching surface. That is, the wine must be subjected to the pressure-guiding, converging and defoaming effect before it can smoothly flow to the drainage channel, effectively avoiding the situation where the pressure-guiding surface only plays a guiding role but fails to play a good role in guiding pressure.

[0021] 3. In addition, further auxiliary settings such as defoaming grooves, defoaming blocks, defoaming gaps, and defoaming edges are used to achieve different degrees of defoaming effects at different time points to avoid residue and ensure hygiene. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the beverage machine in Example 1.

[0023] Figure 2 yes Figure 1 sectional view of .

[0024] Figure 3 yes Figure 2 Magnified view of part A.

[0025] Figure 4 It is a schematic diagram of the three-dimensional structure of the support frame.

[0026] Figure 5 yes Figure 4 Enlarged view of part B.

[0027] Figure 6 It is a schematic diagram of the three-dimensional structure of the barrel fixing seat.

[0028] Figure 7 yes Figure 6 Top view of .

[0029] Figure 8 yes Figure 7 A three-dimensional cross-sectional view of

[0030] Figure 9 It is a partial cross-sectional structural diagram of the liquid receiving tank of the second embodiment.

[0031] In the figure, 1. beverage machine; 11. shell; 12. faucet; 2. barrel fixing seat; 21. liquid drop port; 22. clamping cam; 3. support frame; 31. liquid collecting tank; 311. pressure guiding surface; 312. matching surface; 32. drainage channel; 33. defoaming tank; 34. air inlet connection; 35. defoaming block; 351. defoaming edge; 36. defoaming gap; 4. beverage barrel; 41. wine spear; 411. clamping block; 5. refrigeration aluminum block; 6. drain pipe; 7. water collecting tray. DETAILED DESCRIPTION

[0032] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

[0033] Example 1:

[0034] like Figure 1 、 Figure 2 As shown, a beverage dispenser 1 is used for dispensing beer. Specifically, the beverage dispenser includes a housing 11, which has a housing formed therein for mounting a plastic beverage barrel 4 (i.e., a wine barrel). The beverage barrel 4 is connected to the beverage dispenser 1 by being mounted in an inverted manner. Furthermore, a cooling aluminum block 5 is provided within the beverage dispenser 1. A cooling tube (not shown) is wound around the cooling aluminum block 5. The cooling tube contains a refrigerant. The refrigerant transfers cold energy from the cooling aluminum block 5 to the wine in the beverage barrel 4, thereby achieving cooling. A lance 41 is installed at the outlet of the barrel body of the beverage barrel 4. The lance 41 has a liquid outlet channel and an air inlet channel. A high-pressure gas source is provided within the beverage dispenser 1. The high-pressure gas source is connected to the air inlet channel and can provide high-pressure gas to squeeze the liquid in the beverage barrel 4. Under the action of the high-pressure gas, the wine is squeezed out of the beverage barrel 4 through the liquid outlet channel of the lance 41 and distributed to the faucet 12 of the beverage dispenser 1 through a disposable hose within the beverage dispenser 1 for dispensing.

[0035] like Figure 2 、 3 As shown, specifically, the beverage machine 1 includes a barrel body fixing seat 2 for connecting the beverage barrel 4, the above-mentioned refrigeration aluminum block 5 and the beverage barrel 4 are both installed on the barrel body fixing seat 2, and the clamping protrusion 22 is engaged with the wine spear 41 to realize the connection between the beverage barrel 4 and the beverage machine 1. At present, most of the beverage barrels 4 on the market are disassembled and assembled by rotating, and this embodiment is no exception. Figure 3 As shown, a locking protrusion 22 is provided on the barrel body fixing seat 2. The locking protrusion 22 is sheet-shaped and horizontally arranged. The wine spear 41 of the beverage barrel 4 has three locking blocks 411. During installation, the three locking blocks 411 are inserted into the space below the locking protrusion 22 on the barrel body fixing seat 2 and are pressed against and limited by the locking protrusion 22.

[0036] In addition, if Figures 6 to 8As shown, this solution provides a liquid dropout 21 on the barrel fixing base 2, located below the latching protrusion 22. Wine leakage from the beverage barrel 4 mostly occurs during assembly and disassembly, that is, when the wine spear 41 engages or exits the latching protrusion 22. Since the position of the wine spear 41 outlet is substantially lower than that of the latching protrusion 22, the liquid dropout 21 is positioned below the latching protrusion 22 in this solution. This allows the high-impact spray of wine to be at least partially blocked and initially defoamed by the latching protrusion 22, thus achieving dual purposes. In this solution, three latching protrusions 22 are provided, evenly spaced along the circumference.

[0037] like Figure 3 、 Figure 4 、 Figure 5 As shown, a support frame 3 connected to and used for supporting the barrel body fixed seat 2 is provided below the barrel body fixed seat 2, and the support frame 3 is provided with an annular liquid receiving groove 31. The support frame 3 is also provided with a drainage channel 32 connected to the liquid receiving groove 31 for discharging waste liquid. A liquid drop port 21 is provided on the barrel body fixed seat 2, and the liquid drop port 21 and the entrance of the drainage channel 32 are staggered in the vertical projection direction. The bottom of the liquid receiving groove 31 also has a pressure-guiding surface 311 below the liquid drop port 21, which is gradually inclined from the radial outside to the radial inside of the liquid receiving groove 31. The entrance of the drainage channel 32 is opened on the pressure-guiding surface 311. In addition, the pressure-guiding surface 311 is arranged at the same height along its circumference, which means that all positions on the same circumferential line are of the same height. In this embodiment, the pressure-guiding surface 311 is gradually inclined downward from the radial outside to the radial inside of the liquid receiving groove 31. The bottom of the liquid receiving groove 31 also has a mating surface 312 that is gradually inclined upward from the radial outside to the radial inside of the liquid receiving groove 31. Specifically, this embodiment also includes a mating surface 312 that mates with the pressure-guiding surface 311. The mating surface 312, combined with the pressure-guiding surface 311, forms a groove structure with a funnel-shaped cross-section. The sides of this groove structure gradually converge downward, allowing both liquid falling directly from the drop outlet 21 and liquid sprayed onto the mating surface 312 to achieve pressure guidance through these two surfaces. Furthermore, the entrance of the drainage channel 32 is partially located on the pressure-guiding surface 311 and partially on the mating surface 312. This means that the entrance of the drainage channel 32 is located at the lowest point of the approximately funnel-shaped groove formed by the pressure-guiding surface 311 and the mating surface 312, preventing the entrance of the drainage channel 32 from being lower than the bottom of the funnel. Furthermore, a circular arc transition is formed between the pressure-guiding surface 311 and the mating surface 312. This circular arc transition avoids dead corners, ensuring that the wine is drained as cleanly as possible and preventing hygienic issues. In this embodiment, although there is an arc transition between the pressure-guiding surface 311 and the mating surface 312, in order to better distinguish the pressure-guiding surface 311 and the mating surface 312, Figure 4 、 Figure 5 Two circular lines are used to distinguish them.

[0038] like Figure 5As shown, the support frame 3 is provided with a cylindrical air intake connection portion 34 for connecting to the air intake structure. A plurality of defoaming blocks 35 are circumferentially arranged on the outer periphery of the air intake connection portion 34. A defoaming gap 36 is formed between adjacent defoaming blocks 35. The defoaming gap 36 is smaller than the horizontal width of the defoaming block 35. The defoaming block 35 is formed with a plurality of vertical defoaming edges 351 on the side facing the pressure guide surface 311. The defoaming block 35 is suitable for use in the initial stage of liquid splashing, when there is still a lot of liquid, and the liquid flows down or partially flows into the inner side of the liquid receiving groove 31. At this time, as the liquid is washed away, the presence of the defoaming groove 33 and the defoaming gap 36 can be used to stir or disturb the liquid. The vertical defoaming edges 351 make the corners of the defoaming block 35 not a circular transition but a sharp edge.

[0039] Further, such as Figure 2 As shown, in this embodiment, a drain pipe 6 is connected below the drain channel 32. The drain pipe 6 is a hose, and the other end of the drain pipe 6 leads to the water receiving tray 7, which can transport the internal waste liquid to the water receiving tray 7 located below the faucet 12, so that the water receiving tray 7 can be used for two purposes and is convenient for cleaning.

[0040] Example 2:

[0041] like Figure 9 As shown, the structure and principle of this embodiment are basically the same as those of the first embodiment, except that an elongated strip-shaped defoaming groove 33 is provided on the bottom of the liquid receiving groove 31, and the defoaming groove 33 is located between the pressure-guiding surface 311 and the mating surface 312, and the pressure-guiding surface 311 and the mating surface 312 are connected through the groove surface of the defoaming groove 33. A long strip of defoaming groove 33 can be further opened at the bottom of the liquid receiving groove 31. The groove width of the defoaming groove 33 can be as thin as possible. At this time, when discharging foam, most of the foam can achieve the defoaming effect with the help of the pressure-guiding surface 311 and the matching surface 312, but a small amount of foam will still remain and be difficult to eliminate. At this time, the defoaming groove 33 is long and narrow and does not meet the lowest point of the two surfaces. Then, when the foam slides downward under the action of gravity, it will pass through the defoaming groove 33 or be located above the defoaming groove 33. At this time, the liquid has been basically drained, so there is basically no liquid in the defoaming groove 33, only air. When the foam passes through the defoaming groove 33, it is easy to be broken due to the presence of air in the defoaming groove 33, that is, the defoaming groove 33 can achieve the effect of secondary defoaming, thereby avoiding more residual foam affecting hygiene.

[0042] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope of the appended claims.

[0043] Although this document frequently uses terms such as beverage dispenser 1, housing 11, faucet 12, barrel fixing seat 2, liquid outlet 21, latching protrusion 22, support frame 3, liquid receiving groove 31, pressure guiding surface 311, mating surface 312, liquid discharge channel 32, defoaming groove 33, connecting portion 34, defoaming block 35, defoaming rib 351, defoaming gap 36, beverage barrel 4, wine spear 41, and cooling aluminum block 5, the use of other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitations is contrary to the spirit of the present invention.

Claims

1. A beverage machine, comprising a barrel fixing seat (2) for connecting a beverage barrel (4), a support frame (3) connected to the barrel fixing seat (2) and used for supporting the barrel fixing seat (2), the support frame (3) having an annular liquid receiving groove (31), and the support frame (3) also having a drainage channel (32) for discharging waste liquid connected to the liquid receiving groove (31), characterized in that: The barrel body fixing seat (2) is provided with a liquid drop port (21), and the liquid drop port (21) and the inlet of the liquid discharge channel (32) are staggered in the vertical projection direction. The bottom of the liquid receiving groove (31) further comprises a pressure guiding surface (311) below the liquid drop port (21) that gradually tilts from the radial outer side to the radial inner side of the liquid receiving groove (31). The pressure guiding surface (311) is annular, and the inlet of the liquid discharge channel (32) is opened on the pressure guiding surface (311).

2. The beverage machine according to claim 1, characterized in that The pressure guiding surface (311) is arranged at the same height along its circumference.

3. The beverage machine according to claim 1 or 2, characterized in that: The pressure-guiding surface (311) gradually slopes downward from the radial outer side to the radial inner side of the liquid receiving groove (31), and the bottom of the liquid receiving groove (31) further comprises a matching surface (312) gradually sloped upward from the radial outer side to the radial inner side of the liquid receiving groove (31), and the matching surface (312) is located inside the pressure-guiding surface (311).

4. The beverage machine according to claim 3, characterized in that The inlet of the liquid discharge channel (32) is partially located on the pressure-guiding surface (311) and partially located on the matching surface (312).

5. The beverage machine according to claim 4, characterized in that There is an arc transition between the pressure-guiding surface (311) and the matching surface (312).

6. The beverage machine according to claim 4, characterized in that A slender strip-shaped defoaming groove (33) is also provided on the bottom of the liquid receiving groove (31). The defoaming groove (33) is located between the pressure guiding surface (311) and the matching surface (312), and the pressure guiding surface (311) and the matching surface (312) are connected through the groove surface of the defoaming groove (33).

7. The beverage machine according to claim 1 or 2, characterized in that: The support frame (3) is provided with a cylindrical air intake connection portion (34) for air intake, and a plurality of defoaming blocks (35) are provided along the circumferential direction on the outer peripheral side of the air intake connection portion (34), and defoaming gaps (36) are formed between adjacent defoaming blocks (35).

8. The beverage machine according to claim 7, characterized in that The defoaming gap (36) is smaller than the horizontal width of the defoaming block (35), and the defoaming block (35) is formed with a plurality of vertical defoaming edges (351) on the side facing the pressure guide surface (311).

9. The beverage machine according to claim 1 or 2, characterized in that: The barrel body fixing seat (2) is provided with a clamping protrusion (22) for clamping with a wine spear (41) on a beverage barrel (4); the clamping protrusion (22) is sheet-shaped and arranged horizontally; the liquid drop port (21) is located below the clamping protrusion (22).

10. The beverage machine according to claim 9, characterized in that The shape of the liquid drop opening (21) is consistent with the shape of the clamping protrusion (22), and the projection of the liquid drop opening (21) in the vertical upward direction can cover the clamping protrusion (22).

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