A portable beer tapping device and beer keg

Abstract

The application discloses a portable beer tapping device and a beer barrel, which comprises a tapping device body, the tapping device body comprises a shell, a center valve and a liquid outlet pipe assembly, an upper cavity and a lower cavity are sequentially arranged in the shell along a height direction, the center valve extends to the lower cavity through the top of the shell and is used for controlling the on-off of the two cavities, a vertical pipe body and a horizontal pipe body of the liquid outlet pipe assembly are communicated with each other, and the horizontal pipe body is abutted and matched with the center valve, a gas outlet hole for guiding reaction gas is arranged at the bottom of the lower cavity, during production, the upper cavity is filled with acetic acid solution or citric acid solution, and the lower cavity is placed with soda powder, and the tapping operation can be realized by self-generating pressure through a chemical reaction. The device discloses the traditional electric and manual air pump pressurization structure, solves the defects of high cost, the need to purchase separately, inconvenience to carry and complicated operation of the traditional equipment, has simple structure and low cost, can be sold with the beer barrel, users do not need to additionally equip auxiliary equipment, and the device is easy to use and has better practicability and adaptability.

Description

Technical Field

[0001] This invention relates to the field of beer keg dispensing technology, specifically to a portable dispensing device and a beer keg. Background Technology

[0002] Keg beer is widely used in restaurants, family gatherings, and outdoor picnics. Keg beer contains a flexible inner liner, with the beer sealed inside. A space exists between the keg and the inner liner. To use it, high-pressure gas is introduced into this space, using the pressure to compress the flexible inner liner and extract the beer from the keg. This method offers advantages such as high beer capacity per keg, excellent preservation, and superior taste, making it widely applicable.

[0003] Currently, most commercially available keg-packaged beer dispensing relies on an external electric air pump or manual pump to provide pressurized air. High-pressure gas is introduced into the inner and outer layers of the beer keg to compress the flexible inner liner, thus dispensing the beer. This gas supply method has several drawbacks: Firstly, the equipment has high operating costs. Electric air pumps are expensive to purchase, and manual air pumps need to be purchased separately. Merchants do not provide air supply equipment when selling beer barrels, so consumers need to purchase, carry, and store them separately, which increases the cost of use. Secondly, it is inconvenient to operate and use. Electric air pumps rely on power supply and cannot be used outdoors or in situations without power supply. Manual air pumps require repeated pressing to create effective air pressure, and the operation steps are cumbersome. The air pumping and dispensing of alcohol cannot be synchronized, resulting in low dispensing efficiency. Third, the equipment occupies a large space, and the air pump and air compressor are independent external devices, which are inconvenient to store and carry. Long-term use may also lead to problems such as air leakage in the pipeline and pump failure, resulting in poor stability. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a dispensing device body, which includes a housing, a central valve, and a liquid outlet pipe assembly. The housing has an upper cavity and a lower cavity arranged sequentially from top to bottom along the height direction of the housing. The central valve extends from the top of the housing into the lower cavity, and the upper and lower cavities are connected or closed through the central valve; The liquid outlet pipe assembly includes a vertical pipe body and a horizontal pipe body. The vertical pipe body is movable directly below the central valve. One end of the vertical pipe body is located in the lower cavity, and the other end extends from the bottom of the lower cavity to the outside of the housing. One end of the horizontal pipe body is located between the vertical pipe body and the central valve and is connected to the vertical pipe body. The other end extends from the side wall of the lower cavity to the outside of the housing. One end of the central valve abuts against the upper wall of the horizontal pipe body. An air vent is located at the bottom of the lower cavity.

[0005] According to one embodiment of the present invention, the housing includes an upper housing, a partition, and a lower housing. The lower end of the upper housing and the upper end of the lower housing are spliced ​​together to form the housing. The partition is clamped at the splicing position of the upper housing and the lower housing. The partition is laterally divided inside the housing, dividing the housing into an upper cavity and a lower cavity. One side of the partition is engaged and limited at the bottom of the upper housing, and the other side is supported and abutted against the top of the lower housing. An air vent is provided at the bottom of the lower housing.

[0006] According to one embodiment of the present invention, the top of the upper housing is provided with a first through hole, and the partition is provided with a second through hole corresponding to the first through hole; The central valve includes a pressing assembly and a valve body. The pressing assembly is located in the first through hole, and the valve body includes a valve stem and a first elastic element. One end of the valve stem is located at the first through hole and abuts against the pressing assembly, and the other end passes through the second through hole and abuts against the liquid outlet pipe assembly in the lower cavity. The valve stem is provided with an abutment and a first sealing ring. The abutment is located at the top of the valve stem. The first elastic element is sleeved on the outer wall of the valve stem, and its two ends abut against the abutment and the partition respectively. The first sealing ring is located on the outer wall of the valve stem and is located in the lower cavity. Its outer diameter is larger than the inner diameter of the second through hole.

[0007] According to one embodiment of the present invention, the lower housing is provided with a mounting cavity, which extends from the side wall of the lower housing into the lower cavity, and the lower housing is provided with an opening that communicates with the mounting cavity; A third through hole is provided at the top of the mounting cavity away from the opening, and a fourth through hole is provided at the bottom of the lower housing. Both the third and fourth through holes are connected to the mounting cavity and are coaxially arranged with the first and second through holes. The vertical tube is located in the mounting cavity, with one end extending out of the lower housing through the fourth through hole. The horizontal tube is movably located in the mounting cavity, with one end extending out of the lower housing through the opening. The bottom end of the valve stem extends into the mounting cavity through the third through hole and abuts against the upper wall of the horizontal tube.

[0008] According to one embodiment of the present invention, the lower housing is further provided with an air guide column, which is disposed in the lower cavity, with one end disposed at the bottom of the lower housing and communicating with the air outlet, and the other end extending to the partition.

[0009] According to one embodiment of the present invention, the bottom of the lower housing is further provided with a connecting part, the connecting part including an inner ring and an outer ring arranged concentrically, a plurality of connecting blocks are arranged along the circumference of the inner wall of the inner ring, and a communication port is also provided on the side wall of the inner ring, the communication port is located above one of the connecting blocks and communicates with the air outlet; the length of the outer ring is greater than the length of the inner ring.

[0010] According to one embodiment of the present invention, a guide slope is provided at one end of the upper surface of the connecting block.

[0011] According to one embodiment of the present invention, the upper housing is further provided with a sealing valve, the sealing valve including a valve plate and a plug, the valve plate is disposed on the top wall of the upper housing and its thickness is less than the thickness of the top wall of the upper housing, the plug is disposed on the side of the valve plate located in the upper cavity; the partition is provided with a first connecting post, the first connecting post is disposed facing the valve plate and the connecting post has a through hole, the plug is inserted into one end of the through hole and the other end of the through hole communicates with the lower cavity.

[0012] According to one embodiment of the present invention, an explosion-proof valve is further provided. The upper wall of the upper housing is provided with a pressure relief hole, and the inner wall of the upper housing is provided with a limiting tube corresponding to the pressure relief hole. The partition is also provided with a second connecting column. The second connecting column also has a through hole communicating with the upper cavity and the lower cavity, and one end of the through hole is directly opposite the pressure relief hole. One end of the limiting tube is sleeved outside one end of the second connecting column. The explosion-proof valve is located inside the limiting tube and includes a rod and a second elastic element. The outer wall of the rod is provided with a second sealing ring. The outer diameter of the second sealing ring is smaller than the inner diameter of the limiting tube and larger than the inner diameter of the through hole of the second connecting column. The two ends of the rod are respectively inserted into the pressure relief hole and one end of the second connecting column. The second elastic element is sleeved on the rod and its two ends abut against the inner side of the upper wall of the upper housing and the second sealing ring, respectively.

[0013] A beer keg, including a portable dispensing device.

[0014] The advantages of this invention are as follows: Compared to existing technologies that rely on electric or manual air pumps for pressurizing and dispensing beer, this portable dispensing device effectively overcomes the problems of high cost, the need for additional purchase, inconvenience in carrying, and cumbersome operation of traditional air pump equipment. It relies on a chemical reaction to generate gas and pressurize the beer, resulting in a simple overall structure and significantly reduced production and usage costs. In practical applications, this portable dispensing device can be sold as a set with beer kegs, eliminating the need for users to purchase or carry an additional air pump. It is ready to use immediately upon receipt, offering simple and convenient operation and enhanced practicality. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the assembly structure of the portable beer dispensing device and the beer barrel in the embodiment. Figure 2 This is a schematic diagram of the exploded structure of the portable beer dispensing device and the beer barrel in the embodiment; Figure 3 This is one of the cross-sectional views of the portable beer dispensing device and beer barrel assembly structure in the embodiment; Figure 4 This is a second cross-sectional view of the assembly structure of the portable beer dispensing device and the beer barrel in the embodiment. Figure 5This is one of the exploded structural diagrams of the portable wine dispensing device in the embodiments; Figure 6 This is the second schematic diagram of the exploded structure of the portable wine dispensing device in the embodiment; Figure 7 for Figure 6 Enlarged view of section A. Detailed Implementation

[0016] The following drawings disclose several embodiments of the present invention. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details are not intended to limit the invention. That is, in some embodiments of the invention, these practical details are not essential. Furthermore, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0017] Furthermore, in this invention, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the invention. They are merely used to distinguish components or operations described using the same technical terms, and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, such a combination should be considered nonexistent and not within the scope of protection claimed by this invention.

[0018] See Figures 1-7 , Figure 1 This is a schematic diagram of the assembly structure of the portable beer dispensing device and the beer barrel in the embodiment. Figure 2 This is a schematic diagram of the exploded structure of the portable beer dispenser and beer barrel in the embodiment. Figure 3 This is one of the cross-sectional views of the portable beer dispensing device and beer barrel assembly structure in the embodiment. Figure 4 This is the second cross-sectional view of the portable beer dispensing device and beer barrel assembly structure in the embodiment. Figure 5 This is one of the exploded structural diagrams of the portable wine dispensing device in the embodiments. Figure 6 This is the second schematic diagram of the exploded structure of the portable wine dispensing device in the embodiment. Figure 7 for Figure 6Enlarged view of section A. This example shows a portable wine dispensing device, including a dispensing device body 1, which comprises a housing 11, a central valve 12, and a dispensing pipe assembly 13. Inside the housing 11, along its height direction, an upper cavity 114 and a lower cavity 115 are sequentially arranged from top to bottom. The central valve 12 extends from the top of the housing 11 into the lower cavity 115, and the upper cavity 114 and lower cavity 115 are connected or closed via the central valve 12. The dispensing pipe assembly 13 includes a vertical pipe 131 and a horizontal pipe 132. The vertical tube 131 is located directly below the central valve 12, with one end inside the lower cavity 115 and the other end extending from the bottom of the lower cavity 115 to the outside of the housing 11. One end of the horizontal tube 132 is located between the vertical tube 113 and the central valve 12, and communicates with the vertical tube 131; the other end extends from the side wall of the lower cavity 115 to the outside of the housing 11. One end of the central valve 12 abuts against the upper wall of the horizontal tube 132. A vent 1131 is provided at the bottom of the lower cavity 115 for the discharge of reaction gases. During production, the upper cavity 114 is pre-filled with glacial acetic acid solution or citric acid solution; preferably, citric acid solution is used in this example. Baking soda is placed in the lower cavity 115; however, this can be adjusted according to the capacity of the beer keg.

[0019] Specifically, the dispensing device 1 is installed on the stud 3 of the beer barrel 2. The beer barrel 2 includes a barrel body 21 and a flexible inner liner 22 located inside the barrel body 21. A sealed gas storage compartment 23 is formed between the barrel body 21 and the flexible inner liner 22. The stud 3 is fixedly mounted at the mouth of the beer barrel 2. A dispensing valve 31 is located at the center of the stud 3, and an inlet valve 32 is also arranged adjacent to the dispensing valve 31. When the dispensing device 1 is installed on the stud 3, the two ends of the dispensing valve 31 are connected to the flexible inner liner 22 and the vertical pipe body 131, respectively, and the two ends of the inlet valve 32 are connected to the gas storage compartment 23 of the beer barrel 2 and the vent 1131 of the shell 11, respectively. In actual use, pressing the center valve 12 can open the communication channel between the upper cavity 114 and the lower cavity 115, allowing the acetic acid solution in the upper cavity 114 to flow into the lower cavity 115 and react chemically with the baking soda inside to generate carbon dioxide gas. On the other hand, the center valve 12 moves downward and simultaneously squeezes the liquid outlet assembly 13, driving the vertical tube 131 to press down and open the wine outlet valve 31 on the wine bottle 3.

[0020] The carbon dioxide gas produced by the reaction is introduced into the gas storage compartment 23 of the beer barrel 2 through the vent 1131 at the bottom of the lower chamber 115 and the gas inlet valve 32 of the beer barrel 3. The gas pressure in the gas storage compartment 23 continues to rise, squeezing the internal flexible inner liner 22, causing the inner liner 22 to contract. This forces the beer inside the inner liner 22 to be squeezed out through the opened beer outlet valve 31 and the vertical pipe 131, completing the automatic beer dispensing operation. After dispensing is completed, the central valve 12 is released, and the central valve 12 automatically resets, cutting off the communication channel between the upper chamber 114 and the lower chamber 115. The acetic acid solution stops flowing in, and the chemical reaction in the lower chamber 115 immediately terminates, no longer generating carbon dioxide gas. At the same time, the liquid outlet pipe assembly 13 resets, and the beer outlet valve 31 of the beer barrel 3 closes synchronously, stopping the dispensing of beer.

[0021] As can be seen, compared to existing technologies that rely on electric or manual air pumps for pressurizing and dispensing beer, this portable dispensing device effectively overcomes the problems of high cost, the need for additional purchase, inconvenience in carrying, and cumbersome operation associated with traditional air pump equipment. It relies on a chemical reaction to generate gas and pressurize the beer, resulting in a simple overall structure and significantly reduced production and usage costs. Furthermore, due to its low cost, this portable dispensing device can be sold as a complete set with two beer kegs, eliminating the need for users to purchase and carry an additional air pump. It is ready to use immediately upon arrival, offering simple and convenient operation and enhanced practicality.

[0022] Furthermore, the housing 11 includes an upper housing 111, a partition 112, and a lower housing 113. The lower end of the upper housing 111 and the upper end of the lower housing 113 are spliced ​​together to form the housing 11. The partition 112 is sandwiched at the splicing position of the upper housing 111 and the lower housing 113. The partition 112 is laterally separated inside the housing 11, dividing the housing 11 into an upper cavity 114 and a lower cavity 115. One side of the partition 112 is engaged and limited at the bottom of the upper housing 111, and the other side is supported and abutted against the top of the lower housing 113. The vent 1131 is provided at the bottom of the lower housing 113. Specifically, the lower housing 113 has a flared portion 1136 at its upper end, and a bearing step 11361 on the inner wall of the flared portion 1136. The partition 112 is supported on the bearing step 11361. The partition 112 has an annular protrusion 1123, and an annular groove is formed between the annular protrusion 1123 and the inner wall of the flared portion 1136. The lower wall of the upper housing 111 is engaged in the annular groove. In this way, disassembly and assembly are simple during use, and it is convenient for users to add acetic acid and baking soda, so as to realize the device's cyclical reuse. In specific implementation, a sealing ring can be set in the annular groove, and bolt connection platforms can also be set on the peripheral walls of the upper housing 111 and the lower housing 113 for further fixation by tightening bolts.

[0023] Furthermore, the top of the upper housing 111 is provided with a first through hole 1111, and the partition 112 is provided with a second through hole 1121 corresponding to the first through hole 1111; the central valve 12 includes a pressing assembly 121 and a valve body 122. The pressing assembly 121 is located in the first through hole 1111, and the valve body 122 includes a valve stem 1221 and a first elastic element 1222. One end of the valve stem 1221 is located in the first through hole 1111 and abuts against the pressing assembly 121, and the other end passes through the second through hole 1121. The valve stem 1221 is located within the lower cavity 115 and abuts against the outlet pipe assembly 13. The valve stem 1221 is equipped with an abutment 12211 and a first sealing ring 12212. The abutment 12211 is located at the top of the valve stem 1221. A first elastic element 1222 is sleeved on the outer wall of the valve stem 1122, with both ends abutting against the abutment 12211 and the partition 112, respectively. The first sealing ring 12212 is located on the outer wall of the valve stem 1122 and within the lower cavity 115, with an outer diameter larger than the inner diameter of the second through hole 1121. In this example, the first elastic element 1222 is a spring. In use, pressing down on the pressing component 121 drives the valve stem 1221 downward. The first sealing ring 12212 simultaneously disengages from the second through hole 1121 along with the valve stem. The acetic acid solution inside the upper cavity 114 flows into the lower cavity 115 through the second through hole 1121, where it mixes with the baking soda in the lower cavity 115 and reacts to generate carbon dioxide. During the downward pressing of the valve stem 1221, the liquid pipe assembly 13 is simultaneously pushed out, causing the vertical pipe 131 to press down and open the wine dispensing valve 31, thus dispensing the wine. After the wine dispensing operation is completed, the pressing component 121 is released. The first elastic element 1222 rebounds and drives the valve stem 1221 to reset upward. The first sealing ring 12212 re-seals the second through hole 1121, cutting off the flow of the acetic acid solution into the lower cavity 115 and terminating the gas production reaction. At the same time, the liquid pipe assembly 13 releases the downward pressure on the wine dispensing valve 31, and the wine dispensing valve 31 automatically resets and closes, stopping the wine dispensing. In this example, the pressing component 121 uses a cam handle.

[0024] Furthermore, the lower housing 113 is provided with a mounting cavity 1132, which extends from the side wall of the lower housing 113 into the lower cavity 115. The lower housing 113 is provided with an opening 1133, which communicates with the mounting cavity 1132. The top of the mounting cavity 1132 away from the opening 1133 is provided with a third through hole 11311, and the bottom of the lower housing 113 is also provided with a fourth through hole 11313. The third through hole 11311 and the fourth through hole 11313 are both connected. The vertical tube 131 is disposed within the mounting cavity 1132 and coaxially with the first through hole 1111 and the second through hole 1121. One end of the vertical tube 131 extends through the fourth through hole 11313 to the outside of the lower housing 113. The horizontal tube 132 is movably disposed within the mounting cavity 1132, with one end extending through the opening 1133 to the outside of the lower housing 113. The bottom end of the valve stem 1122 extends through the third through hole 11311 into the mounting cavity 1132 and abuts against the upper wall of the horizontal tube 132. It can be understood that the mounting cavity 1132 and the lower cavity 115 are separated from each other, which can reserve sufficient vertical movement stroke for the liquid outlet tube assembly 13 to ensure its smooth up and down sliding.

[0025] The lower housing 113 is also equipped with a gas guide column 1134, which is located inside the lower cavity 115. One end of the gas guide column 1134 is located at the bottom of the lower housing 113 and communicates with the gas outlet 1131, while the other end extends to the partition 112. In this way, when gas is generated in the lower cavity 115, it enters through the top of the gas guide column 1134 and passes through the gas guide column 1134 before entering the beer barrel 2 through the gas outlet 1131. This not only effectively ensures that the gas enters the beer barrel 3 normally, but also prevents the powder inside the lower cavity 3 from leaking out through the gas outlet 1131.

[0026] Furthermore, the bottom of the lower housing 113 is also provided with a connecting part 1135, which includes an inner ring 11351 and an outer ring 11352 arranged concentrically. Multiple connecting blocks 113511 are arranged circumferentially on the inner wall of the inner ring 11351. A communication port 113512 is also opened on the side wall of the inner ring 11351. The communication port 113512 is located above one of the connecting blocks 113511 and communicates with the air outlet 1131. The length of the outer ring 11352 is greater than the length of the inner ring 11351. It is understood that the top of the beer barrel 2 has a connector 33 and a locking head 34. The locking head 34 is located at the center of the connector 33 and extends away from the connector 33. The beer outlet valve 31 is located at the center of the locking head 34, and the air inlet valve 32 is located at the connector 33 and adjacent to the locking head 34. The peripheral wall of the locking head 34 has multiple locking blocks 341 corresponding to the connecting block 113511. Therefore, during installation, the inner ring 11351 is interlocked and fixed with the locking head 34 through the connector 33. At the same time, the bottom of the inner ring presses down on the air inlet valve 32 so that the air inlet valve 32 remains open and communicates with the air outlet 1131. The outer ring 11352 is sleeved on the outer wall of the connector 33, and the inner wall of the outer ring 11352 forms a seal with the outer wall of the connector 33 to prevent gas leakage. In specific implementation, a sealing strip can be set on the inner wall of the outer ring 11352.

[0027] Preferably, one end of the upper surface of the connecting block 113511 is provided with a guide slope 1135111. During assembly, the slope can automatically guide and align the device, enabling quick insertion and installation of the portable dispensing device and the dispensing vessel 3. This makes assembly smoother and less strenuous, effectively improving assembly efficiency.

[0028] Preferably, the upper housing 11 is further provided with a sealing valve 1112, which includes a valve plate 11121 and a plug 11122. The valve plate 11121 is disposed on the top wall of the upper housing 11, and its thickness is less than the thickness of the top wall of the upper housing 11. The plug 11122 is disposed on the side of the valve plate 11121 located inside the upper cavity 114. The partition 112 is provided with a first connecting post 1122, which faces the valve plate 11121 and has a through hole. The plug 11122 is inserted into one end of the through hole, and the other end of the through hole is connected to the lower cavity. It can be understood that when the solution in the upper cavity flows into the lower cavity and reacts to generate gas, some of the gas enters the upper cavity through the through hole of the connecting post 11121. In this way, it effectively prevents the liquid from being unable to flow out due to vacuum negative pressure in the upper cavity. Preferably, the upper surface of the valve plate 11121 is also provided with a pressing head 111211. In the initial state, the handle 1221 of the pressing assembly 122 abuts against and presses down the pressing head 111211, so that the plug 11122 is always sealed at one end of the through hole of the first connecting post 1122. In this way, the solution in the upper cavity can be effectively prevented from leaking into the lower cavity through the first connecting post 1122 and reacting during product transportation. When in use, after the handle 1221 is turned to cause a reaction in the housing 11, some gas pushes the plug 11122 upward, and the gas can then enter the upper cavity from the lower cavity.

[0029] Preferably, an explosion-proof valve 14 is also provided. The upper wall of the upper housing 111 has a pressure relief hole 1113, and its inner wall has a limiting tube 1143 corresponding to the pressure relief hole 1113. Correspondingly, the partition 112 also has a second connecting post 1123, which also has a through hole connecting the upper cavity and the lower cavity, with one end of the through hole directly opposite the pressure relief hole 1113. One end of the limiting tube 1143 is sleeved outside one end of the second connecting post 1123. The explosion-proof valve 14 is located inside the limiting tube 1143 and includes a rod 141 and a second elastic element 142. In this design, a second sealing ring 1411 is provided on the outer wall of the rod 141. The outer diameter of the second sealing ring 1411 is smaller than the inner diameter of the limiting tube 1143 and larger than the inner diameter of the through hole of the second connecting post 1123. Both ends of the rod 141 are respectively inserted into the pressure relief hole 1113 and one end of the second connecting post 1123. The second elastic element 1132 is sleeved on the rod 141, and both ends abut against the inner side of the upper wall of the upper housing 111 and the second sealing ring 1141, respectively. In a specific implementation, a sealing ring can also be provided between the second sealing ring 1411 and the second connecting post 1123. In this example, the second elastic element 1412 is also a spring. Under normal conditions, the gas inside the housing enters the barrel normally because the second elastic element 142 abuts against the second sealing ring 1411. When the liquid outlet pipe assembly 13 is blocked, causing the gas inside the housing 11 to be unable to be discharged normally, the internal pressure increases, causing the second sealing ring 1411 to be pushed up. The gas can then escape through the through hole of the second connecting column 1123 to the limiting pipe 1143 and be discharged through the pressure relief hole 1113 to prevent the housing 11 from exploding due to abnormal gas pressure inside the housing 11 and ensure user safety.

[0030] Preferably, the upper shell 111 is also provided with a liquid injection hole; above the liquid injection hole is a liquid injection boss 1115, which also has a through hole communicating with the liquid injection hole. During production, after the shell is assembled, liquid is injected into the upper cavity through the liquid injection hole to fill the upper cavity with citric acid solution. After the liquid injection is completed, a sealing component is inserted into the through hole of the liquid injection boss 1115 for sealing. Preferably, the sealing component can be a plastic bolt, which, together with a sealing ring, seals the liquid injection boss 1115.

[0031] Preferably, in specific implementation, defoaming columns 133 can be installed in the vertical pipe 131 and the horizontal pipe 132. The defoaming columns 133 can break the foam generated in the pipeline, prevent the bubbles from flowing out with the wine, and ensure that the liquid is dispensed evenly and smoothly.

[0032] In summary, in this example, the portable beer dispensing device relies on a chemical reaction to generate gas and pressurize the beer, resulting in a simple overall structure and significantly reduced production and usage costs. This portable beer dispensing device can be sold as a complete set with beer kegs, eliminating the need for users to purchase or carry an additional air pump. It is ready to use immediately upon arrival, offering simple and convenient operation and enhanced practicality.

[0033] The above description is merely an embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A portable wine dispensing device, characterized in that, include: The main body of the wine dispensing device (1) includes a housing (11), a central valve (12) and a liquid outlet pipe assembly (13). The housing (11) has an upper cavity (114) and a lower cavity (115) arranged sequentially from top to bottom along the height direction of the housing (11). The central valve (12) extends from the top of the housing (11) into the lower cavity (115), and the upper cavity (114) and the lower cavity (115) are connected or closed through the central valve (12); The liquid outlet pipe assembly (13) includes a vertical pipe body (131) and a horizontal pipe body (132). The vertical pipe body (131) is located directly below the central valve (12). One end of the vertical pipe body (131) is located inside the lower cavity (115), and the other end extends from the bottom of the lower cavity (115) to the outside of the housing (11). One end of the horizontal pipe body (132) is located between the vertical pipe body (131) and the central valve (12) and communicates with the vertical pipe body (131). The other end of the horizontal pipe body (132) extends from the side wall of the lower cavity (115) to the outside of the housing (11). One end of the central valve (12) abuts against the upper wall of the horizontal pipe body (132). The bottom of the lower cavity (115) is provided with an air outlet (1131).

2. The portable wine dispensing device according to claim 1, characterized in that, The shell (11) includes an upper shell (111), a partition (112) and a lower shell (113). The lower end of the upper shell (111) and the upper end of the lower shell (113) are spliced ​​together to form the shell (11). The partition (112) is sandwiched at the splicing position of the upper shell (111) and the lower shell (113). The partition (112) is laterally separated inside the shell (11), dividing the shell (11) into an upper cavity (114) and a lower cavity (115). One side of the partition (112) is locked and limited at the bottom of the upper shell (111), and the other side is supported and abutted against the top of the lower shell (113). The vent (1131) is located at the bottom of the lower shell (113).

3. The portable wine dispensing device according to claim 2, characterized in that, The top of the upper housing (111) is provided with a first through hole (1111), and the partition (112) is provided with a second through hole (1121) corresponding to the first through hole (1111). The central valve (12) includes a pressing assembly (121) and a valve body (122). The pressing assembly (121) is located in the first through hole (1111). The valve body (122) includes a valve stem (1221) and a first elastic element (1222). One end of the valve stem (1221) is located in the first through hole (1111) and abuts against the pressing assembly (121). The other end passes through the second through hole (1121) and abuts against the liquid outlet assembly (13) in the lower cavity (115). The valve stem (1221) is provided with an abutment (12211) and a first sealing ring (12212). The abutment (12211) is located at the top of the valve stem (1221). The first elastic element (1222) is sleeved on the outer wall of the valve stem (1221) and its two ends abut against the abutment (12211) and the partition (112) respectively. The first sealing ring (12212) is located on the outer wall of the valve stem (1221) and is located in the lower cavity (115). Its outer diameter is larger than the inner diameter of the second through hole (1121).

4. The portable wine dispensing device according to claim 3, characterized in that, The lower housing (113) is provided with a mounting cavity (1132), which extends from the side wall of the lower housing (113) into the lower cavity (115). The lower housing (113) is provided with an opening (1133), which communicates with the mounting cavity (1132). The mounting cavity (1132) is provided with a third through hole (11311) at the top of the end away from the opening (1133), and the lower housing (113) is also provided with a fourth through hole (11313) at the bottom. The third through hole (11311) and the fourth through hole (11313) are both connected to the mounting cavity (1132) and are coaxially arranged with the first through hole (1111) and the second through hole (1121). The vertical tube (131) is located in the mounting cavity (1132), with one end extending through the fourth through hole (11313) to the outside of the lower housing (113). The horizontal tube (132) is movably located in the mounting cavity (1132), with one end extending through the opening (1133) to the outside of the lower housing (113). The bottom end of the valve stem (1221) extends through the third through hole (11311) into the mounting cavity (1132) and abuts against the upper wall of the horizontal tube (132).

5. The portable wine dispensing device according to claim 2, characterized in that, The lower housing (113) is also provided with an air guide column (1134), which is located in the lower cavity (115). One end of the air guide column (1134) is located at the bottom of the lower housing (113) and communicates with the air outlet (1131), while the other end extends to the partition (112).

6. The portable wine dispensing device according to claim 2, characterized in that, The bottom of the lower housing (113) is also provided with a connecting part (1135), the connecting part (1135) includes an inner ring (11351) and an outer ring (11352) arranged concentrically. The inner wall of the inner ring (11351) is provided with a plurality of connecting blocks (113511) arranged circumferentially. The side wall of the inner ring (11351) is also provided with a connecting port (113512). The connecting port (113512) is located above one of the connecting blocks (113511) and communicates with the air outlet (1131). The length of the outer ring (11352) is greater than the length of the inner ring (11351).

7. The portable wine dispensing device according to claim 6, characterized in that, One end of the upper surface of the connecting block (113511) is provided with a guide slope (1135111).

8. The portable wine dispensing device according to claim 2, characterized in that, The upper housing (11) is also provided with a sealing valve (1112), which includes a valve plate (11121) and a plug (11122). The valve plate (11121) is disposed on the top wall of the upper housing (11), and its thickness is less than the thickness of the top wall of the upper housing (11). The plug (11122) is disposed on the side of the valve plate (11121) located in the upper cavity (114). The partition (112) is provided with the first connecting post (1122), which is disposed facing the valve plate (11121). The first connecting post (11121) has a through hole. The plug (11122) is inserted into one end of the through hole, and the other end of the through hole is connected to the lower cavity (115).

9. The portable wine dispensing device according to claim 2, characterized in that, An explosion-proof valve (14) is also provided. The upper wall of the upper housing (111) is provided with a pressure relief hole (1113), and a limiting tube (1143) is provided on its inner wall corresponding to the pressure relief hole (1113). The partition (112) is also provided with a second connecting post (1123). The second connecting post (1123) also has a through hole connecting the upper cavity (114) and the lower cavity (115), and one end of its through hole is directly opposite the pressure relief hole (1113). One end of the limiting tube (1143) is sleeved outside one end of the second connecting post (1123). The explosion-proof valve (14) is located inside the limiting tube (1143) and includes a rod. The rod (141) has a body (141) and a second elastic element (142). The outer wall of the rod (141) is provided with a second sealing ring (1411). The outer diameter of the second sealing ring (1411) is smaller than the inner diameter of the limiting tube (1143) and larger than the inner diameter of the through hole of the second connecting column (1123). The two ends of the rod (141) are respectively inserted into the pressure relief hole (1113) and one end of the second connecting column (1123). The second elastic element (1132) is sleeved on the rod (141) and its two ends respectively abut against the inner side of the upper wall of the upper shell (111) and the second sealing ring (1141).

10. A beer keg comprising the portable dispensing device according to any one of claims 1-9.

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