Beverage barrels and beverage machines

Abstract

The present invention provides a beverage barrel, characterized in that it comprises: a barrel body having a barrel mouth; a bottle plug component detachably arranged at the barrel mouth, having a liquid channel for allowing beverage to pass through, an annular gas channel surrounding the liquid channel and allowing gas to pass through, and a welded portion passed through by the liquid channel, and an inner bag arranged in the barrel body for containing beverages, at least one sheet material formed by edge welding, and having a bag mouth located at the center of one side edge. Compared with setting a through hole on the side of the inner bag for the wine spear to pass through, the bag mouth is simpler to process, the connection is more secure, and the sealing is better.

Description

Technical Field

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

[0002] A beverage barrel is a container for holding beverages (such as beer, coffee, soda, etc.). In the prior art, beverage barrels include steel cylinders and plastic bottles. Steel cylinders can be recycled, but they are heavy and have high recycling costs. They may also cause ring pollution during the recycling and cleaning process. Plastic bottles have low manufacturing costs, but poor air tightness, which can easily affect the flavor of the beverage. In severe cases, they may leak and generally have no light-shielding properties. Long-term exposure to ultraviolet rays can easily cause the beverage to deteriorate.

[0003] At present, in order to solve the problem of poor air tightness of plastic barrels, an inner bag can be provided in the plastic barrel, and beverages can be placed in the inner bag. The barrel mouth of the plastic barrel is usually provided with a bottle plug component with a valve function, and the inner bag and the bottle plug component are fixedly connected. When the plastic barrel is a wine barrel, the bottle plug component is a wine spear. However, in the prior art, the wine spear is set on the side of the inner bag, that is, it is necessary to open a through hole on the side of the inner bag, and then connect the wine spear to the through hole. However, this connection method is very troublesome to process, and after the processing is completed, the wine spear is located on the side of the inner bag, and the two sides of the inner bag are asymmetrical. Therefore, when the inner bag is placed in the plastic barrel, it is easy to cause the part of the inner bag at the connection between the inner bag and the wine spear to be severely squeezed and deformed at the barrel mouth, resulting in damage to the inner bag. Summary of the invention

[0004] In order to solve the above problems, a beverage barrel and a beverage machine are provided, which can ensure the sealing of the beverage while making the connection between the inner bag and the bottle plug component more secure. The present invention adopts the following technical solutions:

[0005] The present invention provides a beverage barrel, characterized in that it comprises: a barrel body, having a barrel mouth; a bottle plug component, which is detachably arranged at the barrel mouth, and has a liquid channel for allowing beverage to pass through, an annular gas channel surrounding the circumference of the liquid channel and allowing gas to pass through, and a welded portion passed by the liquid channel; and an inner bag, which is arranged in the barrel body and is used to hold beverages, is sealed by at least one sheet material through edge welding, and has a bag mouth portion located in the center of one side edge.

[0006] The beverage barrel provided by the present invention may also have such a feature, wherein the welding portion has two end portions extending in opposite directions, each end portion has a cross-sectional shape with a gradually decreasing width, the bag mouth portion is sealed on the welding portion by heat welding, and the bag mouth portion has two edge portions respectively connected to the sealing edges, and each edge portion is respectively heat-fused to the corresponding end portion on the welding portion.

[0007] The beverage barrel provided by the present invention may also have such a feature, wherein the cross-section of the welded portion is in the shape of a diamond, a shuttle or a cross star.

[0008] The beverage barrel provided by the present invention may also have the following characteristics: the barrel body is a wine barrel, the bottle stopper component is a wine spear, the beverage is liquid wine, and a hollow tube connected to the liquid channel and extending toward the bottom of the barrel body is provided on the welded portion.

[0009] The beverage barrel provided by the present invention may also have such a feature, wherein the wine spear has a bushing, a flange, a pressure cap, a top core and a top core spring, the bushing is fixedly installed at the barrel mouth, and its outer surface is provided with a first sealing ring that cooperates with the inner wall of the barrel mouth for sealing, and has a flange mounting portion that passes through the central position of the bushing to form a set, one end of the flange is installed in the flange mounting portion, and the other end is provided with a welding portion, which is located on the side of the flange close to the bottom of the barrel body, the outer surface of the flange cooperates with the inner surface of the bushing to form a gas channel, the interior of the flange is a hollow structure, and is provided with a pressure cap mounting portion and The top core sealing part, the pressure cap is fixedly installed in the pressure cap mounting part, and cooperates with the flange to form a liquid channel. The top core is arranged inside the flange, and is located on the side of the pressure cap away from the bottom of the barrel body. A sealing gasket is provided on the side of the top core away from the bottom of the barrel body. One end of the top core spring abuts on the pressure cap, and the other end abuts on the top core. Under the action of the top core spring, the sealing gasket on the top core tightly abuts on the top core sealing part, and cooperates with the top core sealing part to form a seal to block the liquid channel. Once the top core is moved to the side close to the bottom of the barrel body by external force, the sealing gasket is separated from the top core sealing part to open the liquid channel.

[0010] The beverage barrel provided by the present invention may also have such a feature, wherein the pressing cap is located on the side of the welding part away from the bottom of the barrel body, and a hollow tube mounting part is provided at the central position of the pressing cap. The welding part is a hollow structure, and the hollow tube passes through the welding part and is tightly inserted into the hollow tube mounting part.

[0011] The beverage barrel provided by the present invention may also have the following characteristics, wherein a second sealing ring is provided on the flange mounting portion, and the second sealing ring cooperates with the outer wall of the flange to form a seal. Once gas flows in through the gas channel from the side of the sleeve away from the bottom of the barrel body, the gas pushes open the part where the sealing ring abuts against the flange and enters between the barrel body and the inner bag.

[0012] The beverage barrel provided by the present invention may also have the following feature: the capacity of the inner bag is 1.7 times the capacity of the barrel body.

[0013] The beverage barrel provided by the present invention may also have such a feature, wherein the inner bag contains a three-layer membrane structure, which is a PET layer, an EVOH layer and a PET layer in sequence, or the inner bag contains a four-layer membrane structure, which is a PET layer, an EVOH layer, a nylon layer and a PET layer in sequence.

[0014] The present invention provides a beverage machine, characterized in that it comprises: the above-mentioned beverage barrel; and a beverage dispenser, which is installed on the beverage barrel and has a liquid outlet pipe for inflating air between the outer surface of the inner bag and the inner wall of the barrel body, so that the beverage in the inner bag flows out from the liquid outlet pipe.

[0015] Function and Effect of the Invention

[0016] According to the beverage barrel and beverage machine of the present invention, the inner bag is sealed by at least one sheet material through edge welding, has a bag opening located in the center of one side edge, and the bag opening has two edge portions respectively connected to the sealed edges, a welding portion is provided at the bottom of the wine spear, and the inner bag is connected to the welding portion by hot melting. Compared with providing a through hole on the side of the inner bag to allow the wine spear to pass through, the bag opening is simpler to process, the connection is more secure, and the sealing is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the three-dimensional structure of a beverage machine in an embodiment of the present invention;

[0018] Figure 2 is a schematic diagram of the three-dimensional structure of a beverage barrel in an embodiment of the present invention;

[0019] Figure 3 Schematic diagram of the planar structure of a beverage barrel according to an embodiment of the present invention;

[0020] Figure 4 is a schematic diagram of the structure of the inner bag in an embodiment of the present invention;

[0021] Figure 5 2 is a schematic diagram of the structure in which the inner bag and the wine spear are thermally welded in an embodiment of the present invention;

[0022] Figure 6 This is a cross-sectional view of the mouth of a beverage barrel in an embodiment of the present invention. Figure 1 ;

[0023] Figure 7 This is a cross-sectional view of the mouth of a beverage barrel in an embodiment of the present invention. Figure 2 ;

[0024] Figure 8 is a schematic diagram of the structure of a wine spear without a hollow tube in an embodiment of the present invention;

[0025] Fig. 9 yes Figure 8 Cross-sectional view of the middle BB;

[0026] Fig.10 is a schematic diagram of the three-dimensional structure of a bushing in an embodiment of the present invention;

[0027] Fig.11 is a schematic diagram of the three-dimensional structure of a flange in an embodiment of the present invention;

[0028] Fig.12 is a schematic diagram of the top view of the flange in an embodiment of the present invention;

[0029] Fig.13 It is a schematic diagram of the three-dimensional structure of the top core body in an embodiment of the present invention. DETAILED DESCRIPTION

[0030] The specific implementation of the present invention is described below with reference to the accompanying drawings and embodiments.

[0031] <Example>

[0032] The beverage barrel is mainly used to store wine, and can also be used to store other beverages such as soda, milk, etc. In the present embodiment, the beverage barrel storing wine is taken as an example for detailed description.

[0033] Figure 1 Schematic diagram of the three-dimensional structure of the beverage machine in the embodiment of the present invention.

[0034] like Figure 1 As shown, this embodiment provides a beverage machine 1, including a beverage barrel 100 and a beverage dispenser 200, which is used to dispense the liquid in the beverage barrel 100 into a container such as a cup waiting to be filled.

[0035] Figure 2 It is a schematic diagram of the three-dimensional structure of a beverage barrel in an embodiment of the present invention. Figure 3 It is a schematic diagram of the planar structure of a beverage barrel in an embodiment of the present invention.

[0036] like Figure 2~Figure 3 As shown, the beverage barrel 100 includes a barrel body 10 , an inner bag 20 and a bottle stopper structure 30 .

[0037] In this embodiment, the barrel body 10 is a wine barrel 10 , the bottle stopper 30 component is a wine spear 30 , and the beverage dispenser 200 is a wine dispenser stool 200 .

[0038] The wine barrel 10 is made of a rigid material and has a barrel mouth 11. A wine spear seat 12 for fixing the wine spear 30 is provided at the barrel mouth 11. An external thread for connecting with the wine spear 30 is provided on the outer wall of the barrel mouth. An internal thread matching the external thread of the barrel mouth 11 is provided on the inner wall of the wine spear seat 12, and the wine spear seat 12 is fixedly mounted on the wine barrel 10 by screwing. In this embodiment, the wine barrel 10 is made of transparent plastic. In other embodiments, the wine barrel 10 can also be a silver opaque wine barrel.

[0039] A through hole is provided in the middle of the wine spear seat 12 for allowing the wine to pass through.

[0040] The inner bag 20 is disposed in the wine barrel 10 and is made of a flexible material for containing wine. An air inlet cavity is formed between the outer surface of the inner bag 20 and the inner wall of the wine barrel. In this embodiment, the inner bag 20 is a three-layer film structure, which includes a PET layer, an EVOH layer, and a PET layer from the inside to the outside. In other embodiments, the inner bag 20 may also be a four-layer film structure, which includes a PET layer, an EVOH layer, a nylon layer, and a PET layer from the inside to the outside.

[0041] In this embodiment, the capacity of the inner bag 20 is 1.7 times the capacity of the wine barrel.

[0042] Figure 4 Schematic diagram of the structure of the inner bag in the embodiment of the present invention. Figure 5 It is a schematic structural diagram of the inner bag and the wine spear being heat-fused in an embodiment of the present invention.

[0043] like Figure 4 and Figure 5 As shown, the inner bag 20 is formed by two sheets of material being sealed by edge welding, and has a bag opening 21 at the center of one side edge, and the two side edges of the bag opening 21 are the welding surfaces 22 of the inner bag 20. The wine spear 30 has a welding portion 325, and the welding portion 325 is thermally welded to the bag opening 21, that is, the welding surface 22 is thermally melted to the welding portion 325. The welding portion 325 has two end portions 325a extending in opposite directions, each end portion having a cross-sectional shape with a gradually decreasing width, and the edge portions 211 at both ends of the bag opening 21 are thermally welded to the two end portions 325a respectively.

[0044] The cross-section of the welding portion 325 is in the shape of a rhombus, a shuttle or a cross star. In this embodiment, the shape of the welding portion 325 is a rhombus.

[0045] The wine spear 30 is arranged at the barrel mouth 11 and is connected with the wine dispenser 200 to seal the barrel mouth. By filling gas between the outer surface of the inner bag 20 and the inner wall of the wine barrel 10, the wine in the inner bag 20 can flow out from the wine spear 30.

[0046] Figure 6 This is a cross-sectional view of the mouth of a beverage barrel in an embodiment of the present invention. Figure 1 . Figure 7 This is a cross-sectional view of the mouth of a beverage barrel in an embodiment of the present invention. Figure 2 .

[0047] Figure 6 and Figure 7 The cross-sectional view of the mouth of a beverage barrel at different angles is shown. Figure 6 and Figure 7 As shown, the wine spear 30 comprises a bushing 31 , a flange 32 , a pressing cap 33 , a top core 34 , a top core spring 35 and a hollow tube 36 .

[0048] The wine spear 30 has a liquid channel 40 for allowing wine to pass through and a gas channel 50 for allowing gas to pass through. The liquid channel 40 is arranged at a central position of the wine spear 30 , and the gas channel 50 is an annular channel surrounding the liquid channel 40 .

[0049] The bushing 31 is cylindrical and is installed at the barrel mouth 11. The outer circumferential surface of the bushing 31 is provided with a bushing installation portion 311, which includes the following: Figure 6 In the direction shown, the mounting surface 3111, the first boss 3112 and the second boss 3113 are arranged sequentially from bottom to top.

[0050] The mounting surface 3111 is tightly against the inner wall of the barrel mouth 11 of the wine barrel 10, that is, the bushing 31 is tightly installed at the barrel mouth 11, and the mounting surface of the bushing 31 and the inner wall of the barrel mouth 11 squeeze each other to prevent the wine spear 30 from loosening and falling off.

[0051] The first boss 3112 is disposed on the side of the mounting surface 3111 away from the bottom of the barrel 10, and is a boss extending radially from the mounting surface 3111 in a direction away from the axis of the bushing 31. A first sealing ring 312 is disposed at a right angle formed between the first boss 3112 and the mounting surface 3111, and a step matching the first sealing ring 312 is disposed at the barrel opening 11, and the step and the first boss 3112 together squeeze the first sealing ring 312 to seal the barrel opening 11.

[0052] The second boss 3113 is disposed on the side of the first boss 3112 away from the barrel bottom of the wine barrel 10, and is a boss extending radially from the first boss 3112 in a direction away from the axis of the bushing 31. The side of the second boss 3113 close to the barrel bottom of the wine barrel 10 abuts against the end of the barrel mouth 11. When the wine spear seat 12 is screwed on the barrel mouth 11, the wine spear seat 12 moves in a direction close to the barrel bottom until the bushing 31 is pressed against the side of the second boss 3113 of the bushing 31 away from the barrel bottom.

[0053] A flange mounting portion 313 for mounting the flange 32 is provided at the center of the bushing 31, and the flange 32 extends and is inserted into the flange mounting portion 313. An annular boss 3131 extending radially toward the bushing axis is provided on the inner wall of the flange mounting portion 313, and a second sealing ring 314 is provided on the side of the annular boss 3131 close to the barrel bottom, and the second sealing ring 314 is used to cooperate with the outer surface of the flange 32 to form a seal. The shape of the abutment between the second sealing ring 314 and the outer surface of the flange 32 is in a right angle shape.

[0054] The bushing 31 also has a connecting portion 315, which is annular and located on the side of the bushing 31 close to the barrel bottom. One end of the flange mounting portion 313 close to the barrel bottom and one end of the bushing mounting portion 311 close to the barrel bottom extend from the inner circumference and outer circumference of the connecting portion 315 in a direction perpendicular to the connecting portion 315 respectively.

[0055] Figure 8 Schematic diagram of the structure of a wine spear without a hollow tube in an embodiment of the present invention. Fig. 9 yes Figure 8 Cross-sectional view of BB. Fig.10 It is a schematic diagram of the three-dimensional structure of the bushing in the embodiment of the present invention.

[0056] like Figure 8~Figure 10 As shown, a plurality of radially extending grooves 3151 are provided on one side of the connecting portion 315 close to the bottom of the barrel, and each groove 3151 extends from the inner circle of the connecting portion 315 to the outer circle of the connecting portion 315. In this embodiment, the connecting portion 315 is provided with 12 grooves 3151, and the 12 grooves 3151 are evenly arranged on the connecting portion 315.

[0057] like Figure 6 and Fig. 9 As shown, a first ventilation groove 3132 is provided on the inner wall of the flange mounting portion 313 on the side close to the bottom of the barrel. In this embodiment, the number of the first ventilation grooves 3132 is 4, which are symmetrically distributed in a cross shape on the inner wall of the flange mounting portion 313 and are respectively connected to the four cross-shaped grooves 3151.

[0058] like Fig. 9 and Fig.10 As shown, a second vent groove 3133 is further provided on the inner wall of the flange mounting portion 313. The second vent groove 3133 extends axially from one end of the bushing 31 close to the barrel bottom, is located between two adjacent first vent grooves 3132, and does not contact the annular boss 3131.

[0059] The connecting portion 315 is also provided with an irregular groove 3152, which is located between two adjacent grooves 3151 and includes a linear groove portion 3152a and a spherical groove portion 3152b, wherein one end of the linear groove portion 3152a is close to the inner circle of the connecting portion 315. A third ventilation groove 3134 is also provided on the inner wall of the flange mounting portion 313, and the third ventilation groove 3134 is connected to the linear groove portion 3152a and is arranged opposite to the second ventilation groove 3133.

[0060] Fig.11 Schematic diagram of the three-dimensional structure of the flange in the embodiment of the present invention. Fig.12 1 is a schematic diagram of the top view of the flange in an embodiment of the present invention.

[0061] like Fig.11 and Fig.12 As shown, the flange 32 is installed in the flange mounting portion 313 of the bushing 31, and has a first connecting section 321, a second connecting section 322, a third connecting section 323, a fourth connecting section 324 and a welding portion 325 arranged in sequence. The first connecting section 321, the second connecting section 322, the third connecting section 323, and the fourth connecting section 324 are all cylindrical.

[0062] A first diameter reducing portion 3211 is provided at the top of the first connecting section 321. The outer surface of the first diameter reducing portion 3211 is an inclined surface, and the outer diameter of the bottom of the inclined surface is equal to the outer diameter of the first connecting section 321. The outer diameter of the first connecting section 321 is smaller than the inner diameter of the portion of the flange mounting portion 313 located on the side of the annular boss 3131 away from the barrel bottom.

[0063] The second connecting section 322 is connected to the bottom of the first connecting section 321, and the outer diameter of the second connecting section 322 is smaller than the outer diameter of the first connecting section 321. The boss formed by connecting the first connecting section 321 and the second connecting section 322 abuts against the side surface of the annular boss 3131 away from the bottom of the barrel. The first connecting section 321 and the second connecting section 322 are provided with two flange grooves 3221 that penetrate from the outer surface of the first connecting section 321 to the outer surface of the second connecting section 322, and the two flange grooves 3221 are symmetrically arranged.

[0064] A second diameter reducing portion 3231 is disposed between the third connecting section 323 and the second connecting section 322. The outer diameter of the top of the second diameter reducing portion 3231 is equal to the outer diameter of the second connecting section 322, and the outer diameter of the bottom is equal to the outer diameter of the third connecting section 323. The second sealing ring abuts against the outer surface of the second diameter reducing portion 3231 to form a seal.

[0065] The outer diameter of the third connecting section 323 is greater than the outer diameter of the first connecting section 321 , and is smaller than the inner diameter of a portion of the flange mounting portion 313 located on the side of the annular boss 3131 close to the barrel bottom.

[0066] A third diameter reducing portion 3241 is disposed between the fourth connecting segment 324 and the third connecting segment 323. The outer diameter of the top end of the third diameter reducing portion 3241 is equal to the outer diameter of the third connecting segment 323, and the outer diameter of the bottom end is equal to the outer diameter of the fourth connecting segment 324.

[0067] The outer diameter of the fourth connecting section 324 is equal to the inner diameter of a portion of the flange mounting portion 313 located on the side of the annular boss 3131 close to the barrel bottom.

[0068] An annular gas channel 50 is formed between the inner wall of the flange mounting portion 313 and the outer wall of the flange 32. The gas enters the annular space formed by the second diameter reducing portion 3231 and the inner wall of the flange mounting portion 313 through the flange groove 3221 from the annular space formed by the first connecting section 321 and the inner wall of the flange mounting portion 313, pushes open the second sealing ring 314, and then enters between the outer surface of the inner bag 20 and the inner wall of the wine barrel 10 through the first ventilation groove 3132, the second ventilation groove 3133 and the third ventilation groove 3134, thereby squeezing the wine in the inner bag 20.

[0069] A welding portion 325 is provided on one side of the fourth connecting section 324 close to the bottom of the barrel. The length and width of the welding portion 325 are both greater than the outer diameter of the fourth connecting section 324. Fig.12 It can be seen from the top view that the circle where the cross section of the fourth connecting section 324 is located is located inside the rhombus where the cross section of the welding portion 325 is located. The welding portion 325 is a hollow structure.

[0070] The flange 32 is provided with a flange through hole 326 penetrating the flange 32, and a pressure cap mounting portion 3261 and a top core sealing portion 3262 are provided in the flange through hole 326. The pressure cap mounting portion 3261 is located at a position corresponding to the third connecting section 323 and the fourth connecting section 324, and the pressure cap 33 is fixedly mounted in the pressure cap mounting portion 3261. The top core sealing portion 3262 is arranged on a side of the pressure cap mounting portion 3261 away from the bottom of the barrel, and its inner surface is an inclined surface parallel to the outer surface of the second diameter reducing portion 3231.

[0071] The pressing cap 33 is cylindrical, and comprises a pressing cap seat portion 331 , a pressing cap connecting portion 332 and a hollow tube mounting portion 333 .

[0072] The cap pressing seat 331 is an annular platform parallel to the bottom of the wine barrel 10 .

[0073] The cap connection part 332 is an annular cylinder extending from the outer circumference of the cap seat part 331 in a direction perpendicular to the cap seat part 331, and the annular cylinder is located on the side of the cap seat part 331 away from the barrel bottom. The outer surface of the cap connection part 332 is tightly fitted with the inner wall of the cap installation part 3261, and they are pressed against each other, so that the cap 33 is fixed in the flange 32.

[0074] The hollow tube mounting portion 333 is an annular cylinder extending from the inner circumference of the cap pressing seat portion 331 in a direction perpendicular to the cap pressing seat portion 331, and the annular cylinder is located on the side of the cap pressing seat portion 331 away from the barrel bottom. The hollow tube 36 is tightly inserted in the hollow tube mounting portion 333 and extends to the bottom of the wine barrel 10.

[0075] A portion of the flange through hole 326 of the flange 32, a space formed by the inner wall of the pressure cap connecting portion 332 of the pressure cap 33, a space formed by the inner wall of the hollow tube mounting portion 333 and the hollow tube 36 cooperate to form a liquid channel 40 for allowing wine to pass through.

[0076] like Figure 6 and Figure 7 As shown, the top core 34 is arranged in the flange through hole 326 of the flange 32, and is located on the side of the hollow tube mounting portion 333 away from the barrel bottom. The upper end portion (i.e., the portion away from the barrel bottom) of the top core 34 is located between the inner walls of the second diameter reducing portion 3231, and the lower end portion (i.e., the portion close to the barrel bottom) is located between the inner walls of the pressure cap connecting portion 332.

[0077] The top core 34 includes a top core body 341 and a sealing gasket 342 disposed on the top of the top core body 341 .

[0078] Fig.13 It is a schematic diagram of the three-dimensional structure of the top core body in an embodiment of the present invention.

[0079] like Figure 6 and Fig.13 As shown, a sealing gasket installation portion 3411 is provided at the top end of the top core body 341 (i.e., the end away from the bottom of the barrel) for installing a sealing gasket 342. A top core spring installation portion 3412 is provided at the bottom end of the top core body 341 (i.e., the end close to the bottom of the barrel). In this embodiment, the top core spring installation portion 3412 is a groove on the top core body 341.

[0080] The top core body 341 is cylindrical, and its outer diameter is smaller than the inner diameter of the cap seat 331. A plurality of ribs 3413 parallel to the axis of the top core body are arranged on the outer wall of the top core body 341, and each rib 3413 uniformly abuts against the inner wall of the cap seat 331.

[0081] The sealing pad 342 is fixedly sleeved on the sealing pad mounting portion 3411, and its top is arc-shaped. The sealing pad 342 is made of elastic material and has elasticity.

[0082] One end of the top core spring 35 rests on the top core spring mounting portion 3412 , and the other end rests on the end of the pressure cap connecting portion 332 away from the barrel bottom, and the end of the top core spring 35 close to the barrel bottom is sleeved on the outer wall of the hollow tube mounting portion 333 .

[0083] In the initial state, the top of the sealing gasket 342 is not acted upon by external force, and the top core spring 35 is in a compressed state. Under the action of the top core spring 35 , the top of the sealing gasket 342 abuts against the inclined inner wall of the top core sealing portion 3262 to form a seal.

[0084] When a force toward the barrel bottom is applied to the top of the sealing gasket 342 , the top core 34 moves toward the barrel bottom and compresses the top core spring 35 , and the liquid channel 40 opens, and the wine can flow out of the wine barrel 10 from the liquid channel 40 through the hollow tube 36 .

[0085] The structure of the wine stool 200 matches the wine lance seat 12 of the beverage barrel 100, so that the beverage barrel 100 can be fixedly installed on the wine stool 200, and has a tap 201 and an air pumping mechanism 202. The wine stool 200 has a structure that matches the top core 34 of the beverage barrel 100. When the beverage barrel 100 is installed on the wine stool 200, the top core 34 is pushed open, that is, the top core 34 moves toward the bottom of the barrel, and the end of the sealing gasket 342 away from the bottom of the barrel is separated from the top core sealing part 3262, thereby opening the liquid channel 40. The tap 201 is connected to the liquid channel 40, and is used to pour the wine in the inner bag 20 into a container such as a cup. The pumping mechanism 202 is connected to the gas channel 50, and is used to fill gas between the inner wall of the wine barrel 10 and the outer wall of the inner bag 20. The filled gas squeezes the inner bag 20 so that the wine in the inner bag 20 passes through the hollow tube 36 and is transported to the faucet 201 via the liquid channel 40, and then flows into the container containing wine through the faucet 201.

[0086] Example Function and Effect

[0087] The beverage barrel provided in this embodiment has an inner bag which is sealed by edge welding of two sheets, has a bag opening located in the center of one side edge, and has two edge portions respectively connected to the sealed edges. A welding portion is provided at the bottom of the wine spear, and the inner bag is connected to the welding portion by hot melting. Compared with providing a through hole on the side of the inner bag to allow the wine spear to pass through, the bag opening is simpler to process, the connection is more secure, and the sealing is better.

[0088] In addition, the welded portion has two ends extending in opposite directions, each end having a cross-sectional shape with a gradually decreasing width, and a structure in which the middle is thick and the two ends are flat, so that when the bag mouth is thermally welded to the welded portion, the welded area is larger, and under the action of the edge portion, the bag mouth has a tendency to close, and the two sheets at the edge portion have a tendency to approach each other. Therefore, the welded portion in which the middle is thick and the two ends are flat is welded in the bag mouth, so that the connection is more firm and the inner bag is not easy to fall off from the wine spear.

[0089] The beverage barrel provided in this embodiment has an inner bag for containing wine in the wine barrel, and the wine is pressed out by filling air between the wine barrel and the inner bag. The wine is better airtight when it is contained in the inner bag, and after the air is filled in, the air does not directly contact the wine, so the wine can be prevented from being deteriorated due to the intake of air.

[0090] In addition, the inner bag has a certain light-shielding property. Since the wine barrel is made of transparent plastic, the wine will deteriorate rapidly if it is exposed to ultraviolet rays for a long time. Therefore, the light-shielding inner bag can prevent ultraviolet rays from directly exposing the wine, thereby greatly delaying the deterioration of the wine.

[0091] In the beverage barrel provided in this embodiment, the capacity of the inner bag is 1.7 times that of the wine barrel, that is, the capacity of the inner bag is greater than that of the wine barrel, so that when the inner bag is filled with wine, it is easier to fill the inner bag with wine so that the outer surface of the inner bag is close to the inner wall of the wine barrel.

[0092] The above embodiments are only used to illustrate specific implementation modes of the present invention, and the present invention is not limited to the description scope of the above embodiments.

[0093] In the above embodiment, the inner bag is sealed by welding two sheets at the edges. In other embodiments, the inner bag can also be sealed by welding one sheet at the edges after folding it in half, and the bag opening is still arranged at the center of the welded edges.

Claims

1. A beverage barrel, characterized in that: include: A barrel body having a barrel mouth; a bottle stopper component, which is detachably arranged at the barrel mouth, and has a liquid channel for allowing beverage to pass through, an annular gas channel surrounding the liquid channel and allowing gas to pass through, and a welded portion passed through by the liquid channel, and The inner bag is arranged in the barrel body and is used to hold beverages. It is formed by at least one sheet material through edge welding and has a bag opening located at the center of one side edge. Wherein, the barrel body is a wine barrel, and the bottle stopper component is a wine spear. The wine spear has a bushing and a flange, The bushing is fixedly mounted at the barrel mouth and has a flange mounting portion that penetrates the bushing from the center of the bushing. One end of the flange is installed in the flange installation part, and the other end is provided with the welding part, which is located on the side of the flange close to the bottom of the barrel body. The outer surface of the flange cooperates with the inner surface of the bushing to form the gas channel. The bushing has a connecting portion, which is in a circular shape; the connecting portion is located on one side of the bushing close to the bottom of the barrel body, A plurality of radially extending grooves are provided on one side surface of the connecting portion close to the bottom of the barrel body, and each groove extends from the inner circle of the connecting portion to the outer circle of the connecting portion; A first ventilation groove is provided on the inner wall of the flange mounting portion on the side close to the barrel bottom. The first ventilation grooves are symmetrically distributed on the inner wall of the flange mounting portion in a cross shape and are respectively connected to the cross-shaped grooves; an annular boss extending radially toward the direction close to the axis of the bushing is provided on the inner wall of the flange mounting portion; A second ventilation groove is also provided on the inner wall of the flange mounting portion; the second ventilation groove extends axially from one end of the bushing close to the barrel bottom, is located between two adjacent first ventilation grooves, and does not contact the annular boss; An irregular groove is also provided on the connecting part, which is located between two adjacent grooves and includes a straight groove portion and a spherical groove portion, and one end of the straight groove portion is close to the inner circle of the connecting part; a third ventilation groove is also provided on the inner wall of the flange mounting part, and the third ventilation groove is connected to the straight groove portion and is arranged opposite to the second ventilation groove.

2. The beverage barrel according to claim 1, characterized in that: in, The welded portion has two ends extending in opposite directions, each end having a cross-sectional shape with a gradually decreasing width, and the bag opening is sealed on the welded portion by heat welding. The bag mouth has two edge portions respectively connected to the sealing edges, and each edge portion is thermally welded to a corresponding end portion of the welding portion.

3. The beverage barrel according to claim 1, characterized in that: in, The cross section of the welded portion is in the shape of a rhombus, a shuttle or a cross star.

4. The beverage barrel according to claim 1, characterized in that: in, The beverage is alcoholic beverage, The welding part is provided with a hollow tube which is connected with the liquid channel and extends toward the bottom of the barrel body.

5. The beverage barrel according to claim 4, characterized in that: in, The wine spear also has a pressing cap, a top core and a top core spring. The outer surface of the bushing is provided with a first sealing ring which cooperates with the inner wall of the barrel mouth for sealing. The interior of the flange is a hollow structure, provided with a pressure cap mounting portion and a top core sealing portion. The pressure cap is fixedly installed in the pressure cap installation portion and cooperates with the flange to form the liquid channel. The top core is arranged inside the flange, and is located on the side of the pressure cap away from the bottom of the barrel body. A sealing gasket is provided on one side of the top core away from the bottom of the barrel body. One end of the top core spring abuts against the pressure cap, and the other end abuts against the top core. Under the action of the top core spring, the sealing gasket on the top core abuts against the top core sealing portion, and cooperates with the top core sealing portion to form a seal to block the liquid channel. Once the top core is moved toward the side close to the bottom of the barrel body by an external force, the sealing gasket is separated from the sealing part of the top core to open the liquid channel.

6. The beverage barrel according to claim 5, characterized in that: in, The pressing cap is located on the side of the welding part away from the bottom of the barrel body, and a hollow tube mounting part is provided at the central position of the pressing cap. The welding part is a hollow structure. The hollow tube passes through the welding portion and is tightly inserted into the hollow tube installation portion.

7. The beverage barrel according to claim 5, characterized in that: in, A second sealing ring is provided on the flange mounting portion, and the second sealing ring cooperates with the outer wall of the flange to form a seal. Once gas flows in through the gas passage from the side of the bushing away from the bottom of the barrel body, the gas pushes open the portion where the sealing ring abuts against the flange and enters between the barrel body and the inner bag.

8. The beverage barrel according to claim 1, characterized in that: in, The capacity of the inner bag is 1.7 times the capacity of the barrel body.

9. The beverage barrel according to claim 1, characterized in that: in, The inner bag comprises a three-layer film structure, which is a PET layer, an EVOH layer and a PET layer in sequence. Or the inner bag comprises a four-layer film structure, which is a PET layer, an EVOH layer, a nylon layer and a PET layer in sequence.

10. A beverage machine, characterized in that: include: The beverage barrel according to any one of claims 1 to 9; as well as The beverage dispenser is installed on the beverage barrel and has a liquid outlet pipe for inflating air between the outer surface of the inner bag and the inner wall of the barrel body, so that the beverage in the inner bag flows out from the liquid outlet pipe.

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