A beverage preparation apparatus air path system and a beverage preparation apparatus

Abstract

The utility model belongs to the technical field of beverage preparation equipment, disclose a kind of beverage preparation equipment gas path system and beverage preparation equipment.The beverage preparation equipment gas path system includes pressurizing air pump, connecting piece and first connecting pipe, pressurizing air pump and connecting piece are all set in beverage preparation equipment main body, connecting piece is provided with air inlet passage and first passage, air inlet passage is communicated at the output end of pressurizing air pump, first connecting pipe is communicated in air inlet hole and first passage.Pressurizing air pump is pressurized and blows to the air in the brewing bin via air inlet hole, so that the micro-pressure environment of about 0.5bar is formed in brewing bin, so that hot water is fully penetrated coffee powder, more effectively dissolves the flavoring material such as soluble solid, oil and aromatic compound in coffee powder, realizes high efficiency and sufficient extraction in short time, and simultaneously improves coffee beverage taste.

Description

Technical Field

[0001] This utility model relates to the field of beverage preparation equipment technology, and in particular to a gas path system and beverage preparation equipment. Background Technology

[0002] Coffee machines, as widely used devices for preparing hot beverages, involve mixing coffee grounds and hot water in the brewing chamber during the coffee-making process. This extraction process aims to fully and evenly extract the soluble flavor compounds from the coffee grounds. Full extraction is not only the core step in coffee preparation but also a crucial factor in determining the flavor and taste of the coffee.

[0003] In existing technology, coffee machines place the hot water spray head above the brewing chamber. The hot water output from the spray head falls into the brewing chamber under gravity and slowly penetrates the coffee grounds. The uniformity of the spray directly affects the uniformity of extraction; the hot water from the spray head must completely cover the coffee grounds to ensure sufficient extraction. Simple single-hole spray heads tend to concentrate hot water in localized areas of the coffee grounds, creating a "channeling effect" and failing to ensure uniform extraction. Utility Model Content

[0004] The purpose of this invention is to provide a gas path system and a beverage preparation device. This gas path system can achieve full extraction during the beverage preparation process, ensuring the best flavor and taste of the beverage.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] On the one hand, a gas path system for a beverage preparation device is provided. The main body of the beverage preparation device is provided with a brewing chamber and a sealing module. The sealing module can block the opening of the brewing chamber and move up and down in the brewing chamber. The sealing module is provided with an air inlet.

[0007] The gas system of the beverage preparation equipment includes an inflation and pressurization unit, which includes:

[0008] A pressurizing air pump is installed in the main body of the beverage preparation equipment;

[0009] A connector is disposed on the main body of the beverage preparation equipment. The connector is provided with an air inlet channel and a first channel. The air inlet channel is connected to the output end of the pressurized air pump. The connector has a first state in which the air inlet channel and the first channel are connected.

[0010] A first connecting pipe is connected to the air inlet and the first channel. When the connector is in the first state, the gas blown out by the first connecting pipe is used to pressurize the brewing chamber.

[0011] As an optional solution for the gas circuit system of the beverage preparation equipment, the main body of the beverage preparation equipment is equipped with a water spray nozzle, which is placed above the brewing chamber and connected to the boiler through a water supply pipe.

[0012] The gas circuit system of the beverage preparation equipment also includes a second connecting pipe. The connecting member is provided with a second channel. The second connecting pipe is connected to the water supply pipe and the second channel. The connecting member has a second state in which the air inlet channel is connected to the second channel.

[0013] When the connector is in the second state, the gas blown out by the second connecting pipe is used to blow out the residual water in the water-filling shower head.

[0014] As an optional solution for the gas circuit system of beverage preparation equipment, the connector has a third state in which the second channel is in gas communication with the first channel;

[0015] Before and / or during the upward repositioning of the sealing module, the connector is in the third state, so that the brewing chamber is connected to the atmospheric environment through the water-filling shower head.

[0016] As an optional solution for the gas path system of beverage preparation equipment, the connector includes:

[0017] The connector body, the air intake channel, the second channel and the first channel are all disposed in the connector body, and the inlet of the second channel and the inlet of the first channel are both connected to the outlet of the air intake channel;

[0018] A valve body is rotatably mounted on the main body of the connector; in the second state, the valve body blocks the inlet of the first channel; in the first state, the valve body blocks the inlet of the second channel; in the third state, the air intake channel stops intake.

[0019] As an optional solution for the gas circuit system of beverage preparation equipment, the connector has a fourth state in which the second channel is in liquid communication with the first channel;

[0020] When the connector is in the fourth state, the water in the boiler enters the second connecting pipe through the water supply pipe, and then flows sequentially through the second channel, the first channel, and the first connecting pipe to the sealing module to clean the sealing module.

[0021] As an optional solution for the gas path system of the beverage preparation equipment, the gas path system of the beverage preparation equipment further includes an air blowing and stirring unit, which includes:

[0022] A stirring air pump is installed in the main body of the beverage preparation equipment;

[0023] A stirring air supply pipe is connected to the output end of the stirring air pump and the bottom of the brewing chamber.

[0024] As an optional solution for the gas circuit system of beverage preparation equipment, the stirring gas supply pipe is connected to the bottom of the brewing chamber through at least one gas supply pipe.

[0025] As an optional solution for the gas path system of beverage preparation equipment, the air inlet is located in the middle of the sealing module.

[0026] On the other hand, a beverage preparation device is provided, including a beverage preparation device body and the aforementioned beverage preparation device gas path system.

[0027] The beneficial effects of this utility model are:

[0028] This invention provides a gas path system and beverage preparation equipment. A pressurized air pump pressurizes the brewing chamber through the air inlet, creating a micro-pressure environment of approximately 0.5 bar inside the chamber. This allows hot water to fully penetrate the coffee powder, more effectively dissolving soluble solids, oils, and aromatic compounds, achieving efficient and thorough extraction in a short time, while simultaneously enhancing the taste of the coffee beverage. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of the beverage preparation equipment provided in the specific embodiments of this utility model;

[0030] Figure 2 This is a schematic diagram of the structure of the grinding disc and the brewing chamber provided in the specific embodiments of this utility model;

[0031] Figure 3 This is a partial cross-sectional view of the grinding disc and the brewing chamber in one orientation provided in the specific embodiment of this utility model;

[0032] Figure 4 This is a partial cross-sectional view of the grinding disc and brewing chamber from another orientation provided in a specific embodiment of this utility model;

[0033] Figure 5 This is a schematic diagram of the gas path system of the beverage preparation equipment provided in the specific embodiments of this utility model;

[0034] Figure 6 This is a schematic diagram of the structure of the bottom side of the brewing chamber provided in a specific embodiment of this utility model;

[0035] Figure 7 This is a cross-sectional view of the brewing chamber provided in a specific embodiment of this utility model.

[0036] In the picture:

[0037] 100. Main body of beverage preparation equipment; 101. Water inlet shower head; 102. Brewing chamber; 103. Sealing module; 1031. Air inlet; 104. Water supply pipe; 1041. Connector; 105. Boiler; 106. Grinding blade;

[0038] 1. Pressurized air pump; 2. Connecting parts;

[0039] 3. Second connecting pipe; 31. Second valve;

[0040] 4. First connecting pipe; 41. First valve;

[0041] 5. Agitator air pump; 6. Agitator air supply pipe; 61. Third valve; 62. Air supply pipe. Detailed Implementation

[0042] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0043] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0044] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0045] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0046] The beverage preparation equipment of this utility model may include coffee machines, tea machines, beverage machines, traditional Chinese medicine beverage machines, etc.; the beverage liquids of this utility model include coffee liquid, tea liquid, chocolate liquid, traditional Chinese medicine liquid, etc.; this application uses coffee machines, coffee powder and coffee liquid as examples to describe the solution.

[0047] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0048] This embodiment provides a gas path system for a coffee machine. For example... Figures 1 to 4 As shown, the main body of the coffee machine is equipped with a water spray plate 101, a brewing chamber 102 and a sealing module 103. The water spray plate 101 is placed above the brewing chamber 102 and is connected to the boiler 105 through a water pipe 104 to transport the hot water in the boiler 105 to the brewing chamber 102, that is, the hot water and coffee powder are mixed and extracted in the brewing chamber 102.

[0049] The sealing module 103 can seal the opening of the brewing chamber 102. When hot water and coffee grounds need to be supplied to the brewing chamber 102, the sealing module 103 separates from the opening of the brewing chamber 102 to ensure that the hot water and coffee grounds can smoothly enter the brewing chamber 102. After both the hot water and coffee grounds have entered the brewing chamber 102, the sealing module 103 seals the opening of the brewing chamber 102, forming a closed extraction space to ensure the extraction effect. After the coffee grounds and hot water have finished mixing and extraction, the sealing module 103 moves downward, allowing the coffee liquid in the brewing chamber 102 to be quickly discharged. For example, the vertical movement of the sealing module 103 is approximately 20 mm.

[0050] Specifically, the sealing module 103 is disposed on the upper plunger, which is movably disposed on the coffee machine body in a horizontal direction. That is to say, the upper plunger carries the sealing module 103, and the sealing module 103 is sealed or separated from the opening of the brewing chamber 102 as the upper plunger moves horizontally.

[0051] like Figure 5As shown, the coffee machine's air circuit system includes an air pressurization unit, which comprises a pressurizing pump 1, a connector 2, a second connecting pipe 3, and a first connecting pipe 4. The pressurizing pump 1 and connector 2 are both located on the coffee machine body. Connector 2 has an air inlet channel, a second channel, and a first channel. The air inlet channel is connected to the output end of the pressurizing pump 1. The second connecting pipe 3 is connected to the water spray nozzle 101 and the second channel. The first connecting pipe 4 is connected to the air inlet 1031 and the first channel. Connector 2 can be, for example, a Y-shaped connector.

[0052] Before extraction, the coffee powder ground by the grinding disc 106 falls into the brewing chamber 102, and hot water is sent to the brewing chamber 102 through the water spray plate 101. After the set amount of hot water is sent to the brewing chamber 102, the connector 2 is adjusted to the second state where the air intake channel is connected to the second connecting pipe 3. The residual water in the water spray plate 101 is drained by blowing air to avoid scale accumulation, inhibit the growth of bacteria and mold, extend the service life of the water spray plate 101, and ensure that the designed water delivery effect is maintained.

[0053] During the process of hot water being delivered from the water inlet shower head 101 to the brewing chamber 102, the air-blowing and stirring unit blows air to stir the water and coffee powder in the brewing chamber 102. Alternatively, after a set amount of hot water is delivered to the brewing chamber 102, the air-blowing and stirring unit blows air to stir the water and coffee powder in the brewing chamber 102. After the residual water in the water inlet shower head 101 is blown out and the air-blowing and stirring unit has completed its air-blowing and stirring of the brewing chamber 102, the upper plunger moves horizontally, causing the sealing module 103 to seal the inlet of the brewing chamber 102. Alternatively, during the air-blowing and stirring process, the upper plunger moves horizontally, causing the sealing module 103 to pre-seal the inlet of the brewing chamber 102. At this time, the connector 2 is adjusted to the first state where the air inlet channel is connected to the first connecting pipe 4, and air is blown into the brewing chamber 102 to pressurize it, i.e., the brewing chamber 102 is in a pressurized state. Since the inlet at the top of the brewing chamber 102 is sealed by the sealing module 103 and there is a water-coffee mixture on the filter screen at the bottom, a certain micro-pressure, about 0.5 bar, will be formed inside the brewing chamber 102. The micro-pressure environment allows the hot water to fully penetrate the coffee powder, more effectively dissolving soluble solids, oils and aromatic compounds in the coffee powder, achieving efficient and full extraction in a short time, while improving the taste of the coffee beverage.

[0054] After extraction is complete and the coffee liquid needs to be discharged, the sealing module 103 moves downward, and the connector 2 maintains the second state where the air intake channel is connected to the first connecting pipe 4. After inflation and pressurization, the coffee liquid in the brewing chamber 102 is quickly discharged. After the coffee liquid is discharged, the connector 2 is adjusted to the third state where the second channel is connected to the first channel. At this time, the gas in the brewing chamber 102 passes through the air intake hole 1031, along the first connecting pipe 4, the first channel of the connector 2, the second channel of the connector 2, and the second connecting pipe 3, and connects to the water spray plate 101 through the connector 1041, so that the brewing chamber 102 is connected to the water spray plate 101. Since the water spray plate 101 is connected to the atmospheric environment, it can accelerate the balance between the brewing chamber 102 and the atmospheric pressure, shorten the time for the brewing chamber 102 to balance with the atmospheric pressure, and thus reduce the noise during the upward resetting process of the sealing module 103, improve the user experience, and make it safer.

[0055] For example, pressurized air pump 1 is a pressurized air pump.

[0056] Optionally, the connector 2 includes a connector body and a valve body. The intake channel, the second channel, and the first channel are all located on the connector body, and the inlet of the second channel and the inlet of the first channel are both connected to the outlet of the intake channel. The valve body is rotatably mounted on the connector body. When the connector 2 is in the second state, the valve body blocks the inlet of the first channel; when the connector 2 is in the first state, the valve body blocks the inlet of the second channel; when the connector 2 is in the third state, the intake channel stops intake. This configuration allows for rapid switching of different flow paths according to gas flow requirements, making it more efficient and convenient. Furthermore, when two of the three channels (intake channel, second channel, and first channel) are connected, the third channel is blocked or intake stops, effectively preventing accidental gas flow and ensuring that the gas flows along the set path.

[0057] Furthermore, the coffee machine body is equipped with a control structure connected to the valve body. This control structure controls the rotation of the valve body to switch the state of the connector 2. The control structure can also adjust the state of the connector 2 in real time according to the state of the brewing chamber 102. For example, when a set amount of hot water is delivered to the brewing chamber 102, the control structure automatically adjusts the connector 2 to the second state; after the sealing module 103 seals the inlet of the brewing chamber 102, the control structure automatically adjusts the connector 2 to the first state; and after the coffee liquid is completely discharged but before the sealing module 103 resets, the control structure automatically adjusts the connector 2 to the third state. Throughout the entire coffee brewing process, the state switching of the connector 2 is automatic without any additional user intervention.

[0058] Specifically, the control structure is a common device, on which the relevant control program is burned in using common methods, which will not be described in detail here.

[0059] Optionally, the air inlet 1031 is located in the middle of the sealing module 103, and the gas diffuses evenly from the middle to the surrounding area, forming a highly symmetrical flow field. This ensures that the coffee powder and hot water in the brewing chamber 102 are fully mixed and in contact, reducing dead zones in the water-powder mixing and improving extraction efficiency. At the same time, the symmetrical upward and downward flow generated by blowing air from the center helps to counteract the rotation trend, ensuring a more stable liquid surface and reducing unnecessary fluctuations and splashes.

[0060] Specifically, the sealing module 103 has a porous structure on the side facing the brewing chamber 102. After the gas is sent to the air inlet 1031 through the first connecting pipe 4, it passes through the porous structure and finally enters the brewing chamber 102. That is, the gas is evenly distributed through the porous structure and then blown into the brewing chamber 102 to achieve a uniform airflow distribution.

[0061] For example, in this embodiment, the brewing chamber 102 is cylindrical, the sealing module 103 is circular in projection on the horizontal plane, and the air inlet 1031 is located in the center of the circle.

[0062] Optionally, such as Figure 5 As shown, the coffee machine's air circuit system also includes an air-blowing and stirring unit, which includes a stirring air pump 5 and a stirring air delivery pipe 6. The stirring air delivery pipe 6 is located in the main body of the coffee machine and connects the output end of the stirring air pump 5 to the bottom side of the brewing chamber 102. During the process of coffee powder and hot water being delivered to the brewing chamber 102, the stirring air pump 5 delivers gas into the brewing chamber 102 through the stirring air delivery pipe 6, causing the coffee powder and hot water mixture to continuously tumble, thereby enhancing the mixing effect and achieving a thorough and uniform mixture. Furthermore, by controlling the voltage or PWM (Pulse Width Modulation) intensity of the stirring air pump 5, the airflow speed and / or intensity of the stirring gas can be adjusted, thereby controlling the stirring force.

[0063] For example, the stirring air pump 5 is an air pump.

[0064] Furthermore, continue to refer to Figure 5 A third valve 61 is provided on the mixing and gas supply pipe 6. The third valve 61 is used to control the opening and closing of the mixing and gas supply pipe 6, making the operation simpler and more convenient. Optionally, the third valve 61 can be a regulating valve with a throttling function to precisely regulate the gas flow rate and pressure delivered to the brewing chamber 102, further ensuring the uniformity of mixing.

[0065] For example, the third valve 61 is also a common structure, and its specific structure and principle are based on existing technology and will not be described in detail here.

[0066] Optionally, the stirring and gas supply pipe 6 is connected to the bottom of the brewing chamber 102 via at least one gas supply pipe 62. Specifically, in this embodiment, as... Figure 6 and Figure 7 As shown, three air supply pipes 62 are provided between the air supply pipe 62 and the bottom of the brewing chamber 102. The air inlet end of each air supply pipe 62 is connected to the air outlet end of the stirring air supply pipe 6. The air supply ends of the three air supply pipes 62 are evenly connected to the bottom of the brewing chamber 102 along the circumference of the brewing chamber 102, so as to achieve more uniform air intake and better stirring effect.

[0067] In other embodiments, the specific number of air supply pipes 62 can be set as needed, and the direction and specific position of the stirring air supply pipe 6 and the air supply pipe 62 can also be adjusted as needed, as long as air can be supplied to the brewing chamber 102 and the coffee powder and hot water can be fully mixed. No specific limitation is made here.

[0068] Optionally, refer to Figure 5 A connector 1041 is provided on the water supply pipe 104, and the outlet of the second connecting pipe 3 is connected to the connector 1041. That is, when hot water is injected into the bathing chamber 102, the connector 1041 opens the passage between the water supply pipe 104 and the water-filling shower head 101, allowing the water supply pipe 104 to deliver hot water to the water-filling shower head 101. After the hot water delivered into the bathing chamber 102 reaches the set amount, the connector 2 is adjusted to the second state, and the pressurized air pump 1 is turned on to inject air into the second connecting pipe 3 to blow out the residual water in the water-filling shower head 101. With the above configuration, the air in the second connecting pipe 3 is first sent to the water supply pipe 104, which allows the air pressure to be transmitted to the water-filling shower head 101 relatively smoothly through the water supply pipe 104, resulting in a more uniform pressure distribution. This effectively avoids the slight water hammer phenomenon that may be caused by rapid drainage or sudden air compression, thereby delaying the impact force on the water-filling shower head 101 and extending the service life of the water-filling shower head 101.

[0069] For example, connector 1041 is a tee connector commonly used in the art.

[0070] Optionally, the connector 2 has a fourth state in which the second channel is in liquid communication with the first channel. When the connector 2 is in the fourth state, hot water in the boiler 105 enters the second connecting pipe 3 through the water supply pipe 104, and then flows sequentially through the second channel, the first channel, and the first connecting pipe 4 to the sealing module 103 to clean the sealing module 103. The sealing module 103 can be cleaned without disassembling it, making it more convenient to use.

[0071] Specifically, in this embodiment, the hot water in the water supply pipe 104 flows to the second connecting pipe 3 through the connector 1041. The connector 1041 can be a common valve body structure. When the sealing module 103 needs cleaning, the connector 1041 blocks the connection between the water supply pipe 104 and the water-filled shower head 101, allowing all the hot water in the water supply pipe 104 to enter the second connecting pipe 3, thereby improving the cleaning effect of the sealing module 103.

[0072] Furthermore, continue to refer to Figure 5 The second connecting pipe 3 is equipped with a second valve 31. During the flow of hot water in the water supply pipe 104, water vapor and some gas will be mixed in. The water vapor and gas will flow into the second connecting pipe 3, which is connected to the water supply pipe 104, and hinder the subsequent gas supply in the second connecting pipe 3. Therefore, before supplying gas to the second connecting pipe 3, the second valve 31 is opened to purge the water vapor and gas in the second connecting pipe 3 to ensure that the gas can be smoothly supplied to the water-filling shower head 101.

[0073] Specifically, due to the characteristic that gas tends to accumulate at the highest point, the second valve 31 is located at the highest point of the second connecting pipe 3. For example, the second valve 31 has a common structure and will not be described in detail here.

[0074] In addition, the diameter of the second valve 31 is larger than that of the second connecting pipe 3, so as to facilitate rapid venting and speed up the connection between the second connecting pipe 3 and the first connecting pipe 4.

[0075] Optionally, the first connecting pipe 4 is provided with a first valve 41. The first valve 41 can be a pressure regulating valve to adjust the pressure value in the first connecting pipe 4, so as to avoid the air pressure being too high or too low, and to ensure that the air is safely and stably blown and pressurized into the foaming chamber 102.

[0076] In addition, this embodiment also provides a coffee machine, including a coffee machine body and the above-mentioned coffee machine air circuit system, which has all the beneficial effects of the above-mentioned coffee machine air circuit system, and will not be described in detail here.

[0077] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A gas path system for a beverage preparation device, wherein the main body (100) of the beverage preparation device is provided with a brewing chamber (102) and a sealing module (103), wherein the sealing module (103) can block the opening of the brewing chamber (102) and move up and down within the brewing chamber (102), and the sealing module (103) is provided with an air inlet (1031); Its features are, The gas system of the beverage preparation equipment includes an inflation and pressurization unit, which includes: A pressurized air pump (1) is installed in the main body (100) of the beverage preparation equipment; A connector (2) is provided on the main body (100) of the beverage preparation equipment. The connector (2) is provided with an air inlet channel and a first channel. The air inlet channel is connected to the output end of the pressurized air pump (1). The connector (2) has a first state in which the air inlet channel is connected to the first channel. The first connecting pipe (4) is connected to the air inlet (1031) and the first channel. When the connector (2) is in the first state, the gas blown out by the first connecting pipe (4) is used to pressurize the brewing chamber (102).

2. The gas path system of the beverage preparation equipment according to claim 1, characterized in that, The beverage preparation equipment body (100) is provided with a water spraying plate (101), which is placed above the brewing chamber (102) and connected to the boiler (105) through a water supply pipe (104); The gas circuit system of the beverage preparation equipment also includes a second connecting pipe (3), the connector (2) is provided with a second channel, the second connecting pipe (3) is connected to the water supply pipe (104) and the second channel, and the connector (2) has a second state in which the air inlet channel is connected to the second channel; When the connector (2) is in the second state, the gas blown out by the second connecting pipe (3) is used to blow out the residual water in the water-filling shower head (101).

3. The gas path system of the beverage preparation equipment according to claim 2, characterized in that, The connector (2) has a third state in which the second channel is in gas communication with the first channel; Before and / or during the upward repositioning of the sealing module (103), the connector (2) is in the third state so that the brewing chamber (102) is connected to the atmospheric environment through the water-filling shower head (101).

4. The gas path system of a beverage preparation apparatus according to claim 3, characterized in that, The connector (2) includes: The connector body, the air intake channel, the second channel and the first channel are all disposed in the connector body, and the inlet of the second channel and the inlet of the first channel are both connected to the outlet of the air intake channel; A valve body is rotatably mounted on the main body of the connector; in the second state, the valve body blocks the inlet of the first channel; in the first state, the valve body blocks the inlet of the second channel; in the third state, the air intake channel stops intake.

5. The gas path system of the beverage preparation apparatus according to claim 2, characterized in that, The connector (2) has a fourth state in which the second channel is in liquid communication with the first channel; When the connector (2) is in the fourth state, the water in the boiler (105) enters the second connecting pipe (3) through the water supply pipe (104), and then flows through the second channel, the first channel, and the first connecting pipe (4) in sequence, and flows to the sealing module (103) to clean the sealing module (103).

6. The gas path system of the beverage preparation apparatus according to claim 1, characterized in that, The gas path system of the beverage preparation equipment also includes an air blowing and stirring unit, which includes: A stirring air pump (5) is installed in the main body (100) of the beverage preparation equipment; The stirring air supply pipe (6) is connected to the output end of the stirring air pump (5) and the bottom of the brewing chamber (102).

7. The gas path system of a beverage preparation apparatus according to claim 6, characterized in that, The stirring gas supply pipe (6) is connected to the bottom of the brewing chamber (102) through at least one gas supply pipe (62).

8. The gas circuit system of a beverage preparation apparatus according to any one of the claims 1-7, characterized in that, The air inlet (1031) is located in the middle of the sealing module (103).

9. A beverage preparation device, characterized in that It includes the main body of the beverage preparation equipment (100) and the gas path system of the beverage preparation equipment as described in any one of claims 1-8.

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