Self-service beer machine

Abstract

The invention relates to a self-service beer machine which comprises a beer barrel, a beer outlet assembly and a defoaming assembly, a containing cavity for containing beer is formed in the beer barrel, the defoaming assembly comprises a stirring assembly, a first driving part and a cover with an inner cavity, a partition plate is arranged in the cover and divides the inner cavity into an oil cavity and a defoaming cavity which are not communicated with each other, and a ball is movably arranged on the partition plate; the balls are in contact with the oil cavity and the defoaming cavity respectively; the cover body is fixedly arranged on the beer barrel, a passing opening communicated with the oil cavity is formed in the containing cavity, the stirring assembly stirs foam in the defoaming cavity, and the first driving piece drives the ball to roll. Beer can continuously generate foams when being poured into the defoaming cavity, the foams can enter the defoaming cavity from the passing opening and can be in contact with oil on the balls, the foams are rapidly eliminated due to the fact that the surface tension of a solution is reduced by the grease, the foams entering the defoaming cavity are stirred through the stirring assembly, the foam eliminating speed is further increased, and the defoaming effect is improved. Therefore, the influence of the foam on the supplement of beer into the beer barrel can be reduced.

Description

Technical Field

[0001] The invention relates to the field of beer machines, in particular to a self-service beer machine. Background Art

[0002] With the continuous advancement of technology, beer, as a beverage, is provided in cafeterias or sold in bulk individually. Beer machines, as an innovative way of serving beverages, have gradually entered people's lives.

[0003] When the remaining beer in the beer barrel on the beer machine is insufficient, the merchant needs to replenish it in time. In the process of replenishing beer, a large amount of foam will be generated when the beer is poured into the beer barrel. It is necessary to wait for the foam to disappear before continuing to pour beer into it. It takes several times to replenish it, and the whole process is time-consuming. Summary of the invention

[0004] In order to reduce the impact of foam on the replenishment of beer into a beer barrel, the present application provides a self-service beer machine.

[0005] The self-service beer machine provided in this application adopts the following technical solution: A self-service beer machine, comprising a pneumatic control component, a beer keg and a wine dispensing component, wherein the beer keg has a holding cavity for accommodating beer, the pneumatic control component comprises a carbon dioxide gas cylinder, a gas meter, an air pipe and a valve, the carbon dioxide gas cylinder is arranged on the outer wall of the beer keg, the gas meter is connected to the carbon dioxide gas cylinder, and displays the carbon dioxide gas pressure in the carbon dioxide gas cylinder in real time, the two ends of the air pipe are respectively connected to the carbon dioxide gas cylinder and the top of the holding cavity, the valve is arranged on the air pipe, and is used to control the opening and closing of the carbon dioxide gas cylinder, the wine dispensing component is used to guide the wine out of the holding cavity, and also comprises a defoaming component, the top of the beer keg is provided with a wine inlet, a baffle is hinged at the wine inlet, the defoaming component comprises a stirring component, a driving member and a cover body with an inner cavity, a partition is arranged in the cover body, the partition divides the inner cavity into an oil cavity and a defoaming cavity that are not connected to each other, the oil cavity is located directly above the defoaming cavity, and balls are movably arranged on the partition, and the balls contact the oil cavity and the defoaming cavity respectively; The cover body is fixedly arranged on the outer wall of the beer barrel, and a through hole connected to the top of the oil chamber is opened on the top inner wall of the accommodating chamber, and the through hole is used for foam to pass through. The stirring component is arranged in the defoaming chamber to stir the foam entering the defoaming chamber, and the driving member is arranged in the defoaming chamber to drive the ball to roll.

[0006] By adopting the above technical solution, when the remaining beer in the beer barrel is insufficient, the merchant opens the baffle and pours beer from the beer inlet. The beer will continuously generate foam when being poured, and the foam will enter the defoaming chamber from the through port. The foam will come into contact with the oil on the ball. Since the oil reduces the surface tension of the solution, the foam can be quickly eliminated. At the same time, the foam entering the defoaming chamber is stirred by the stirring component to further increase the speed of foam elimination, thereby reducing the impact of the foam on the replenishment of beer into the beer barrel and allowing the beer barrel to store a larger amount of beer.

[0007] Preferably, the stirring assembly includes a second driving member, a first rotating rod and a plurality of blades, wherein the first rotating rod is rotatably connected to the cover body, and the plurality of blades are sequentially arranged on the first rotating rod around the circumference, and the second driving member is used to drive the first rotating rod to rotate.

[0008] By adopting the above technical solution, the first rotating rod is driven to rotate by the driving member 2, and the first rotating rod drives the blades to rotate, thereby accelerating the mixing speed of the oil and the foam, thereby accelerating the decomposition of the foam.

[0009] Preferably, the driving member is an extension piece, which is made of soft material and is arranged on one of the blades. The rotation axis direction of the first rotating rod is parallel to the plane set by the partition, and the extension piece passes through the ball when rotating with the corresponding blade.

[0010] By adopting the above technical solution, when the blade rotates, the extension piece will be driven to rotate together. When the extension piece passes through the ball, the friction between the extension piece and the ball can drive the ball to rotate, so that the ball brings the oil in the oil chamber out to the defoaming chamber, helping to decompose the foam.

[0011] Preferably, the second driving member comprises a guide assembly, a transmission belt, a second rotating rod, a third rotating rod, a moving block, a control member, a first gear, a second gear and a rotating wheel, the beer inlet is arranged on the side of the beer barrel away from the cover body, and the guide assembly is used to guide the beer liquid entering the beer inlet to flow toward the inner wall of the accommodating chamber on the side away from the cover body; The rotating wheel is coaxially fixedly connected to the second rotating rod, the second rotating rod is rotatably connected to the beer barrel, a slide groove is provided on the outer wall of the beer barrel, the two ends of the slide groove are respectively facing the second rotating rod and the first rotating rod, the moving block is slidably connected in the slide groove, the third rotating rod is rotatably connected to the moving block, and the control member is used to control the movement of the moving block; The rotation axis directions of the first rotating rod, the second rotating rod and the third rotating rod are parallel to each other, the transmission belt is wound on the second rotating rod and the third rotating rod, the first gear is coaxially fixedly arranged on the first rotating rod, the second gear is coaxially fixedly arranged on the third rotating rod, and the first gear is meshedly connected to the second gear; The rotating wheel is located below the guide assembly, and one end of the rotating wheel away from the cover body is located on the flow path of the beer liquid; when the beer liquid level rises to the height of the rotating wheel, the control member controls the moving block to move toward the side away from the first rotating rod, and the first gear disengages from the second gear; when the beer liquid level is lower than the height of the rotating wheel, the control member controls the moving block to move toward the side of the first rotating rod, and the first gear is meshed and connected to the second gear.

[0012] By adopting the above technical solution, when beer is added to the beer barrel, the flow of beer can drive the wheel to rotate, and the rotation of the wheel drives the third rotating rod to rotate through the transmission belt. Under the action of the control component, the first gear is meshed and connected to the second gear at this time, so the rotation of the third rotating rod can drive the first rotating rod to rotate in the opposite direction, and the several blades on the first rotating rod can accelerate the mixing speed of oil and foam, thereby accelerating the decomposition of foam; until the beer liquid level rises to the height of the wheel, the wheel is immersed in beer, and due to the force of beer on the wheel, the wheel can no longer rotate easily. At the same time, after beer is no longer added, the wheel has no power source and will soon stop rotating. Therefore, under the action of the control component at this time, the first gear is separated from the second gear, and the first rotating rod can continue to rotate for a period of time under the action of inertia, thereby continuing to eliminate the last part of the foam generated.

[0013] Preferably, the guide assembly is a guide plate, the top end of the guide plate is fixedly connected to the inner top wall of the accommodating cavity, and the bottom end of the guide plate is inclined toward the rotating wheel and a side of the corresponding inner wall of the accommodating cavity.

[0014] Preferably, the control member comprises a floating block, a connecting rod, a spring and a rotating block, the floating block is slidably connected in the accommodating cavity along a vertical direction, and the floating block floats on the surface of the beer liquid; A through slot is provided at the top of the beer barrel, one end of the connecting rod is slidably connected in the through slot along the vertical direction, the rotating block is rotatably connected to the other end of the connecting rod along the direction parallel to the axis of the second rotating rod, the rotating block is located directly below the transmission belt, and the floating block is located directly below the through slot; the two ends of the spring are respectively arranged on the moving block and the end wall of the sliding slot, and are used to drive the moving block to always move toward the side of the first rotating rod; When the beer liquid level is lower than the height of the rotating wheel, the floating block does not contact the connecting rod. When the beer liquid level rises to the height of the rotating wheel, the floating block abuts and drives the connecting rod to move upward. The rotating block abuts on the transmission belt and drives the moving block to move toward the side away from the first rotating rod.

[0015] By adopting the above technical solution, the floating block can float with the height of the beer liquid level. When the beer liquid level rises to the height of the rotating wheel, the floating block can rise to abut against the connecting rod to drive the connecting rod to move upward, and the connecting rod drives the rotating block to move upward. The rotating block abuts against the transmission belt to deform the transmission belt. The deformation of the transmission belt acts on the moving block, causing the moving block to overcome the elastic force of the spring and move toward the side away from the first rotating rod, thereby finally separating the first gear from the second gear.

[0016] Preferably, the through port is located above the rotating wheel, and the through slot is located directly below the baffle when the baffle is in an open state. When the beer liquid level rises to the height of the rotating wheel, the baffle abuts against the connecting rod and is arranged at an inclination.

[0017] By adopting the above technical solution, during the upward movement of the connecting rod, the connecting rod can lift up the baffle plate and rotate the baffle plate toward the closed side, so as to promptly remind the person pouring beer that the beer barrel is almost full and no more beer needs to be added.

[0018] The technical effects of the present invention are mainly reflected in the following aspects: 1. When the beer remaining in the beer barrel is insufficient, the merchant can open the baffle and pour beer from the beer inlet. When the beer is poured, foam will be continuously generated. The foam will enter the defoaming cavity from the through port. The foam will contact the oil on the ball. Since the grease reduces the surface tension of the solution, the foam can be quickly eliminated. At the same time, the foam entering the defoaming cavity is stirred by the stirring component, which further improves the elimination speed of the foam, thereby reducing the influence of the foam on the replenishment of beer in the beer barrel, so that a larger amount of beer can be stored in the beer barrel; 2. In the present invention, the first rotating rod is driven to rotate by the second driving member, and the first rotating rod drives the blades to rotate, thereby accelerating the mixing speed of the oil and the foam, thereby accelerating the decomposition of the foam. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0020] Figure 2 is along Figure 1 Section view along line AA.

[0021] Figure 3 It is a schematic diagram of the structure when the beer in the beer barrel of the embodiment of the present application is almost full of beer.

[0022] Figure 4 It is a partial structural diagram of the control component of the embodiment of the present application.

[0023] Explanation of reference numerals: 1. beer barrel; 11. containing chamber; 111. through port; 12. wine inlet; 13. baffle; 14. slide; 15. through slot; 16. glass; 17. baffle; 171. avoidance port; 2. wine dispensing assembly; 21. base; 22. pump body; 23. wine dispensing valve; 3. cover body; 31. partition; 311. ball bearing; 32. oil chamber; 33. defoaming chamber; 34. plug; 35. manual valve door; 4, stirring assembly; 41, first rotating rod; 42, blade; 421, extension piece; 43, guide plate; 44, transmission belt; 45, second rotating rod; 46, third rotating rod; 47, moving block; 48, first gear; 49, second gear; 40, rotating wheel; 51, floating block; 52, connecting rod; 53, spring; 54, rotating block; 61, carbon dioxide cylinder; 62, gas meter; 63, air pipe; 64, valve. DETAILED DESCRIPTION

[0024] The following is combined with Figure 1-Figure 4 The present application is further described in detail to make the technical solution of the present application easier to understand and grasp.

[0025] The embodiment of the present application discloses a self-service beer machine.

[0026] Reference Figure 1 and Figure 2 A self-service beer machine of the present embodiment includes a pneumatic control component, a beer barrel 1, a wine dispensing component 2 and a defoaming component. The beer barrel 1 has a holding chamber 11 for holding beer. The pneumatic control component includes a carbon dioxide cylinder 61, a gas meter 62, an air pipe 63 and a valve 64. The carbon dioxide cylinder is arranged on the outer wall of the beer barrel 1. The gas meter 62 is connected to the carbon dioxide cylinder and displays the carbon dioxide gas pressure in the carbon dioxide cylinder 61 in real time. The two ends of the air pipe 63 are respectively connected to the carbon dioxide cylinder and the top of the holding chamber 11. The valve 64 is arranged on the air pipe 63 for controlling the opening and closing of the carbon dioxide cylinder. The wine dispensing component 2 is used to guide the wine out of the holding chamber 11.

[0027] Reference Figure 1 and Figure 2 A beer inlet 12 is provided on the top of the beer barrel 1, and a baffle 13 is hinged at the beer inlet 12. The defoaming component includes a stirring component 4, a driving member and a cover body 3 with an inner cavity. A partition 31 is provided in the cover body 3, and the partition 31 divides the inner cavity into an oil cavity 32 and a defoaming cavity 33 which are not connected to each other. The oil cavity 32 is located directly above the defoaming cavity 33. A ball 311 is movably provided on the partition 31, and the ball 311 contacts the oil cavity 32 and the defoaming cavity 33 respectively.

[0028] Reference Figure 1 and Figure 2The cover body 3 is fixedly arranged on the outer wall of the beer barrel 1, and a through hole 111 connected to the top of the oil chamber 32 is opened on the inner wall of the top of the accommodating chamber 11, and the through hole 111 is used for foam to pass through. The stirring component 4 is arranged in the defoaming chamber 33, and is used for stirring the foam entering the defoaming chamber 33. The driving member 1 is arranged in the defoaming chamber 33, and is used for driving the ball 311 to roll.

[0029] Reference Figure 1 and Figure 2 When the remaining beer in the beer barrel 1 is insufficient, the merchant opens the baffle 13 and pours beer from the beer inlet 12. When the beer is poured, foam will continue to be generated, and the foam will enter the defoaming chamber 33 from the through port 111. The foam will contact the oil on the ball 311. Since the oil reduces the surface tension of the solution, the foam can be quickly eliminated. At the same time, the foam entering the defoaming chamber 33 is stirred by the stirring component 4, which further increases the speed of foam elimination, thereby reducing the influence of the foam on the replenishment of beer in the beer barrel 1, so that a larger amount of beer can be stored in the beer barrel 1.

[0030] Reference Figure 1 After adding beer, the operator opens valve 64 and evenly injects carbon dioxide to increase the carbon dioxide gas content in beer and improve the taste. The beer machine and the carbon dioxide bottle are used together. As the beer in the barrel is continuously consumed, the gas content is adjusted through switch control to maintain the pressure and freshness in the barrel. At the same time, by setting the gas meter 62, if the carbon dioxide bottle is not used or stored properly, it may cause high pressure in the bottle and cause the bottle to explode. Therefore, it is necessary to pay attention to the pressure in the bottle to avoid danger.

[0031] Reference Figure 1 and Figure 2 An oil inlet hole is provided at the top of the oil chamber 32, a plug 34 is threadedly connected to the oil inlet hole, a discharge port is provided at the bottom of the defoaming chamber 33, a manual valve 6435 is provided on the discharge port, and the operator can discharge the foam that has turned into liquid by opening the manual valve 6435.

[0032] Reference Figure 1 and Figure 2The beer dispensing assembly 2 includes a base 21, a pump body 22 and a beer dispensing valve 23. The base 21 is fixedly arranged at the bottom of the beer barrel 1, the pump body 22 is fixedly arranged in the base 21, and the beer dispensing valve 23 is arranged on the outer wall of the beer barrel 1 away from the cover body 3. The inlet of the pump body 22 is connected to the bottom of the accommodating chamber 11 through a water pipe, and the outlet of the pump body 22 is connected to the beer dispensing valve 23 through a water pipe. The beer dispensing valve 23 and the valve 64 can both be solenoid valves, which can be controlled to open and close by a controller. At the same time, a flow meter is also arranged on the beer dispensing valve 23. The customer can enter the operation interface by scanning the QR code, select the corresponding volume of beer, open the beer dispensing valve 23, and the beer flows out quantitatively. Then the beer dispensing valve 23 is closed, the valve 64 is opened, and a proper amount of carbon dioxide is filled into the beer barrel 1, and then the beer dispensing valve 23 is closed.

[0033] Reference Figure 1 and Figure 2 When the baffle 13 is in a closed state, the baffle 13 can be locked on the beer barrel 1 by bolts to prevent the customer from opening the baffle 13.

[0034] Reference Figure 1 and Figure 2 The stirring assembly 4 includes a second driving member, a first rotating rod 41 and a plurality of blades 42. The first rotating rod 41 is rotatably connected to the cover body 3. The plurality of blades 42 are sequentially arranged on the first rotating rod 41 around the circumference. The second driving member is used to drive the first rotating rod 41 to rotate.

[0035] Reference Figure 1 and Figure 2 The first rotating rod 41 is driven to rotate by the driving member 2, and the first rotating rod 41 drives the blades 42 to rotate, thereby accelerating the mixing speed of the oil and the foam, thereby accelerating the decomposition of the foam.

[0036] Reference Figure 1 and Figure 2 The first driving member is an extension piece 421, which is made of soft material and is arranged on one of the blades 42. The rotation axis direction of the first rotating rod 41 is parallel to the plane of the partition 31. The extension piece 421 passes through the ball 311 when rotating with the corresponding blade 42.

[0037] Reference Figure 1 and Figure 2 When the blade 42 rotates, it will drive the extension piece 421 to rotate together. When the extension piece 421 passes the ball 311, the friction between the extension piece 421 and the ball 311 can drive the ball 311 to rotate, so that the ball 311 brings the oil in the oil chamber 32 out to the defoaming chamber 33 to help decompose the foam.

[0038] Reference Figure 2-Figure 4The second driving member includes a guide assembly, a transmission belt 44, a second rotating rod 45, a third rotating rod 46, a moving block 47, a control member, a first gear 48, a second gear 49 and a rotating wheel 40. The wine inlet 12 is arranged on the side of the beer barrel 1 away from the cover body 3. The guide assembly is used to guide the beer liquid entering the wine inlet 12 to flow toward the inner wall of the side of the accommodating chamber 11 away from the cover body 3.

[0039] Reference Figure 2-Figure 4 The rotating wheel 40 is coaxially fixedly connected to the second rotating rod 45, and the second rotating rod 45 is rotatably connected to the beer barrel 1. A sliding groove 14 is opened on the outer wall of the beer barrel 1, and the two ends of the sliding groove 14 are respectively facing the second rotating rod 45 and the first rotating rod 41. The moving block 47 is slidably connected in the sliding groove 14, and the third rotating rod 46 is rotatably connected to the moving block 47. The control member is used to control the movement of the moving block 47.

[0040] Reference Figure 2-Figure 4 The rotation axis directions of the first rotating rod 41, the second rotating rod 45 and the third rotating rod 46 are parallel to each other, the transmission belt 44 is wound around the second rotating rod 45 and the third rotating rod 46, the first gear 48 is coaxially fixed on the first rotating rod 41, the second gear 49 is coaxially fixed on the third rotating rod 46, and the first gear 48 is meshingly connected to the second gear 49.

[0041] Reference Figure 2-Figure 4 The rotating wheel 40 is located below the guide assembly, and one end of the rotating wheel 40 away from the cover 3 is located on the flow path of the beer liquid. When the beer liquid level rises to the height of the rotating wheel 40, the control component controls the moving block 47 to move toward the side away from the first rotating rod 41, and the first gear 48 is disengaged from the second gear 49. When the beer liquid level is lower than the height of the rotating wheel 40, the control component controls the moving block 47 to move toward the side of the first rotating rod 41, and the first gear 48 is meshed and connected to the second gear 49.

[0042] Reference Figure 2-Figure 4 When beer is added to the beer barrel 1, the flow of beer can drive the rotating wheel 40 to rotate. The rotating wheel 40 rotates and drives the third rotating rod 46 to rotate through the transmission belt 44. Under the action of the control member, the first gear 48 is meshed and connected to the second gear 49, so the rotation of the third rotating rod 46 can drive the first rotating rod 41 to rotate in the opposite direction. The blades 42 on the first rotating rod 41 can accelerate the mixing speed of oil and foam, thereby accelerating the decomposition of foam. When the beer liquid level rises to the height of the rotating wheel 40, the rotating wheel 40 is immersed in the beer. Due to the force of beer on the rotating wheel 40, the rotating wheel 40 can no longer rotate easily. At the same time, after beer is no longer added, the rotating wheel 40 has no power source and will soon stop rotating. Therefore, under the action of the control member, the first gear 48 is separated from the second gear 49, and the first rotating rod 41 can continue to rotate for a period of time under the action of inertia, thereby continuing to eliminate the last part of the foam.

[0043] Reference Figure 2-Figure 4 The guide assembly is a guide plate 43, the top end of the guide plate 43 is fixedly connected to the inner top wall of the accommodating chamber 11, and the bottom end of the guide plate 43 is inclined toward the rotating wheel 40 and the corresponding inner wall of the accommodating chamber 11.

[0044] Reference Figure 2-Figure 4 The control member includes a float 51, a connecting rod 52, a spring 53 and a rotating block 54. The float 51 is slidably connected in the accommodating chamber 11 along the vertical direction, and the float 51 floats on the beer liquid surface.

[0045] Reference Figure 2-Figure 4 A through slot 15 is provided at the top of the beer barrel 1, one end of the connecting rod 52 is slidably connected in the through slot 15 along the vertical direction, and the rotating block 54 is rotatably connected to the other end of the connecting rod 52 along the axial direction parallel to the second rotating rod 45. The rotating block 54 is located directly below the transmission belt 44, and the floating block 51 is located directly below the through slot 15; the two ends of the spring 53 are respectively arranged on the moving block 47 and the end wall of the slide groove 14, so as to drive the moving block 47 to always move toward the side of the first rotating rod 41.

[0046] Reference Figure 2-Figure 4 When the beer liquid level is lower than the height of the rotating wheel 40, the floating block 51 does not contact the connecting rod 52. When the beer liquid level rises to the height of the rotating wheel 40, the floating block 51 abuts against and drives the connecting rod 52 to move upward, and the rotating block 54 abuts against the transmission belt 44, driving the moving block 47 to move toward the side away from the first rotating rod 41.

[0047] Reference Figure 2-Figure 4 The float 51 can float with the height of the beer liquid level. When the beer liquid level rises to the height of the rotating wheel 40, the float 51 can rise to abut against the connecting rod 52 to drive the connecting rod 52 to move upward. The connecting rod 52 drives the rotating block 54 to move upward. The rotating block 54 abuts against the transmission belt 44 to deform the transmission belt 44. The deformation of the transmission belt 44 acts on the moving block 47, so that the moving block 47 overcomes the elastic force of the spring 53 and moves toward the side away from the first rotating rod 41, finally separating the first gear 48 from the second gear 49.

[0048] Reference Figure 2 and Figure 3 The through port 111 is located above the rotating wheel 40, and the through slot 15 is located directly below the baffle 13 when the baffle 13 is in the open state. When the beer liquid level rises to the height of the rotating wheel 40, the baffle 13 abuts against the connecting rod 52 and is set at an angle.

[0049] Reference Figure 3 During the upward movement of the connecting rod 52, the connecting rod 52 can lift the baffle 13, so that the baffle 13 rotates toward the closed side, which can promptly remind the person pouring beer that the beer in the beer barrel 1 is almost full and no more beer needs to be added.

[0050] Reference Figure 1 The beer barrel 1 has a transparent viewing port arranged in the vertical direction, and the viewing port is isolated from the outside world by setting a glass 16, which can help merchants and customers judge the remaining beer in the beer barrel 1.

[0051] Reference Figure 3 and Figure 4 In order to expose the first gear 48, the second gear 49, the transmission belt 44 and other parts to the outside, a shield 17 is provided on the outer wall of the beer barrel 1. The shield 17 can cover the parts exposed outside the beer barrel 1. At the same time, the shield 17 has an escape opening 171 for the connecting rod 52 to move.

[0052] Of course, the above are only typical examples of the present application. In addition, the present application may have many other specific implementation methods. All technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present application.

Claims

1. A self-service beer machine, comprising a pneumatic control component, a beer barrel (1) and a beer dispensing component (2), wherein the beer barrel (1) has a holding chamber (11) for holding beer, the pneumatic control component comprises a carbon dioxide gas cylinder (61), a gas meter (62), an air pipe (63) and a valve (64), the carbon dioxide gas cylinder is arranged on the outer wall of the beer barrel (1), the gas meter (62) is connected to the carbon dioxide gas cylinder, and displays the carbon dioxide gas pressure in the carbon dioxide gas cylinder (61) in real time, the two ends of the air pipe (63) are respectively connected to the carbon dioxide gas cylinder and the top of the holding chamber (11), the valve (64) is arranged on the air pipe (63) and is used to control the opening and closing of the carbon dioxide gas cylinder, the beer dispensing component (2) is used to guide the beer liquid out of the holding chamber (11), and is characterized in that: The invention also comprises a defoaming component, wherein the top of the beer barrel (1) is provided with a beer inlet (12), a baffle (13) is hingedly connected to the beer inlet (12), the defoaming component comprises a stirring component (4), a driving member and a cover body (3) with an inner cavity, a partition (31) is provided in the cover body (3), the partition (31) divides the inner cavity into an oil cavity (32) and a defoaming cavity (33) which are not connected to each other, the oil cavity (32) is located directly above the defoaming cavity (33), and a ball (311) is movably provided on the partition (31), and the ball (311) contacts the oil cavity (32) and the defoaming cavity (33) respectively; The cover body (3) is fixedly arranged on the outer wall of the beer barrel (1); a through hole (111) communicating with the top of the oil chamber (32) is opened on the inner wall at the top of the accommodating chamber (11); the through hole (111) allows foam to pass through; the stirring component (4) is arranged in the defoaming chamber (33) and is used to stir the foam entering the defoaming chamber (33); the driving member (1) is arranged in the defoaming chamber (33) and is used to drive the ball (311) to roll.

2. A self-service beer machine according to claim 1, characterized in that: The stirring assembly (4) comprises a second driving member, a first rotating rod (41) and a plurality of blades (42); the first rotating rod (41) is rotatably connected to the cover body (3); the plurality of blades (42) are sequentially arranged on the first rotating rod (41) around the circumference; and the second driving member is used to drive the first rotating rod (41) to rotate.

3. A self-service beer machine according to claim 2, characterized in that: The first driving member is an extension piece (421), which is made of soft material. The extension piece (421) is arranged on one of the blades (42). The rotation axis direction of the first rotating rod (41) is parallel to the plane set on the partition (31). When the extension piece (421) rotates with the corresponding blade (42), it passes through the ball (311).

4. The self-service beer machine according to claim 2, characterized in that: The second driving member comprises a guide assembly, a transmission belt (44), a second rotating rod (45), a third rotating rod (46), a moving block (47), a control member, a first gear (48), a second gear (49) and a rotating wheel (40); the beer inlet (12) is arranged on a side of the beer barrel (1) away from the cover body (3); and the guide assembly is used to guide the beer liquid entering through the beer inlet (12) to flow toward the inner wall of the accommodating chamber (11) on a side away from the cover body (3); The rotating wheel (40) is coaxially fixedly connected to the second rotating rod (45), the second rotating rod (45) is rotatably connected to the beer barrel (1), a slide groove (14) is provided on the outer wall of the beer barrel (1), the two ends of the slide groove (14) are respectively oriented to the second rotating rod (45) and the first rotating rod (41), the moving block (47) is slidably connected in the slide groove (14), the third rotating rod (46) is rotatably connected to the moving block (47), and the control member is used to control the movement of the moving block (47); The rotation axis directions of the first rotating rod (41), the second rotating rod (45) and the third rotating rod (46) are parallel to each other, the transmission belt (44) is wound around the second rotating rod (45) and the third rotating rod (46), the first gear (48) is coaxially fixedly arranged on the first rotating rod (41), the second gear (49) is coaxially fixedly arranged on the third rotating rod (46), and the first gear (48) is meshedly connected to the second gear (49); The rotating wheel (40) is located below the guide assembly, and one end of the rotating wheel (40) away from the cover body (3) is located on the flow path of the beer liquid; when the beer liquid level rises to the height of the rotating wheel (40), the control component controls the moving block (47) to move toward the side away from the first rotating rod (41), and the first gear (48) is disengaged from the second gear (49); when the beer liquid level is lower than the height of the rotating wheel (40), the control component controls the moving block (47) to move toward the side of the first rotating rod (41), and the first gear (48) is meshed and connected to the second gear (49).

5. The self-service beer machine according to claim 4, characterized in that: The guide assembly is a guide plate (43), the top end of the guide plate (43) is fixedly connected to the inner top wall of the accommodating chamber (11), and the bottom end of the guide plate (43) is inclined toward the rotating wheel (40) and the corresponding inner wall of the accommodating chamber (11).

6. The self-service beer machine according to claim 4, characterized in that: The control member comprises a floating block (51), a connecting rod (52), a spring (53) and a rotating block (54); the floating block (51) is slidably connected in the accommodating chamber (11) along a vertical direction, and the floating block (51) floats on the surface of the beer liquid; The top of the beer barrel (1) is provided with a through groove (15), one end of the connecting rod (52) is slidably connected in the through groove (15) in the vertical direction, the rotating block (54) is rotatably connected to the other end of the connecting rod (52) in a direction parallel to the axis of the second rotating rod (45), the rotating block (54) is located directly below the transmission belt (44), and the floating block (51) is located directly below the through groove (15); the two ends of the spring (53) are respectively arranged on the moving block (47) and the end wall of the slide groove (14), so as to drive the moving block (47) to always move toward the side of the first rotating rod (41); When the beer liquid level is lower than the height of the rotating wheel (40), the floating block (51) does not contact the connecting rod (52); when the beer liquid level rises to the height of the rotating wheel (40), the floating block (51) abuts against and drives the connecting rod (52) to move upward, and the rotating block (54) abuts against the transmission belt (44) to drive the moving block (47) to move toward a side away from the first rotating rod (41).

7. The self-service beer machine according to claim 6, characterized in that: The through port (111) is located above the rotating wheel (40), and the through slot (15) is located directly below the baffle (13) when the baffle is in an open state. When the beer liquid level rises to the height of the rotating wheel (40), the baffle (13) abuts against the connecting rod (52) and is arranged at an angle.

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