Beverage brewing machine

Abstract

The invention provides a beverage brewing machine. A powder bin of the beverage brewing machine is used for storing powder to be brewed; the mixing bin is used for mixing and brewing powder and brewing liquid; a first liquid path and a second liquid path of the liquid supply pipeline are respectively communicated with the mixing bin and provide brewing liquid into the mixing bin, the brewing liquid from the first liquid path spirally flows downwards and brews powder in the mixing bin, and the brewing liquid from the second liquid path is introduced from the lower part of a powder outlet of the powder bin after the first liquid path is closed; the powder flows downwards to wash the powder on the inner wall of the mixing bin; the gas path assembly is communicated with the powder outlet of the powder bin and blows gas downwards from the powder outlet. The brewing liquid introduced through the first liquid path rotates to brew the powder in the mixing bin to make a beverage, and then the brewing liquid introduced through the second liquid path emphatically flushes the powder receiving position in the mixing bin, so that the problem of powder residue in the mixing bin is solved. Air is blown from top to bottom at the powder outlet of the powder bin through the air path assembly, and the problem that the powder outlet is blocked by water vapor is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of powder beverage brewing, and in particular to a beverage brewing machine. BACKGROUND

[0002] The existing powder beverage brewing machine on the market is to brew powder into beverage by rotating flow of brewing liquid to the lower water outlet. During the brewing process, the powder accumulated at the powder receiving position in the mixing bin may adhere to the inner wall of the mixing bin, and some powder may remain at the powder receiving position in the mixing bin after the brewing is completed. In addition, during the brewing process of beverage with warm water or hot water, the upward flow of water vapor may cause the powder to be damp, resulting in blockage of the powder outlet of the powder bin and powder clumping in the powder bin. SUMMARY

[0003] The purpose of the embodiments of the present application is to provide a beverage brewing machine to solve the problems of powder remaining at the powder receiving position in the mixing bin and the powder outlet of the powder bin being blocked by damp.

[0004] The embodiments of the present application adopt the following technical solutions: a beverage brewing machine, comprising:

[0005] a powder bin for storing powder to be brewed;

[0006] a mixing bin located below the powder bin for mixing and brewing of powder and brewing liquid;

[0007] a liquid supply pipeline comprising a first liquid path and a second liquid path, the first liquid path and the second liquid path are respectively communicated with the mixing bin and provide brewing liquid into the mixing bin, the brewing liquid from the first liquid path spirally flows downward and brews the powder in the mixing bin, and the brewing liquid from the second liquid path is introduced from directly below the powder outlet of the powder bin after the first liquid path is closed, and flows downward to wash the powder on the inner wall of the mixing bin;

[0008] a gas path assembly communicated with the powder outlet of the powder bin, the gas path assembly blows gas downward from the powder outlet.

[0009] The brewing liquid introduced through the first liquid path rotates to brew the powder in the mixing bin to make beverage, and then the brewing liquid introduced through the second liquid path is used to focus on washing the powder receiving position in the mixing bin, so as to solve the problem of powder remaining in the mixing bin. In addition, the gas path assembly blows gas from top to bottom at the powder outlet of the powder bin, so as to solve the problem that the upward flow of water vapor causes the powder to be damp and blocks the powder outlet of the powder bin.

[0010] In some embodiments, the mixing bin comprises a mixing bin body and a bin cover, the bin cover is buckled on a first opening on the top of the mixing bin, the bottom of the mixing bin body has a second opening through which the mixed and brewed beverage flows out;

[0011] The bin cover has a first water inlet eccentrically arranged and communicating with the bin inner space of the mixing bin, the first water inlet communicates with the first liquid path;

[0012] The mixing bin body has a second water inlet extending downward, the second water inlet is located below the powder outlet of the powder bin, and the second water inlet communicates with the second liquid path.

[0013] The eccentrically arranged first water inlet can enable the brewing liquid from the first liquid path to flow downward spirally in the mixing bin, ensuring the brewing effect. The second water inlet arranged below the powder outlet extends downward, so that the brewing liquid from the second liquid path can focus on washing the mixing bin.

[0014] In some embodiments, the brewing liquid from the first liquid path flows downward spirally along the inner bin wall of the mixing bin through the first water inlet, and the powder in the mixing bin is brewed into a beverage;

[0015] The brewing liquid from the second liquid path flows downward along the inner bin wall of the mixing bin body through the second water inlet, and the powder remaining in the area of the inner wall of the mixing bin body opposite to the powder outlet is washed to the second opening. The brewing liquid from the first liquid path and the second liquid path has different flow modes in the mixing bin, ensuring the brewing effect of the beverage and realizing the washing of the mixing bin, avoiding the residue of the powder in the mixing bin.

[0016] In some embodiments, the second water inlet has a water inlet end and a water outlet end, the water inlet end communicates with the second liquid path, and the inner wall of the mixing bin body and the bin cover enclose the water outlet end extending downward, so that the brewing liquid from the second liquid path can flow downward to focus on washing the mixing bin.

[0017] In some embodiments, the beverage brewing machine further comprises a water collecting tank and a control valve, the first liquid path and the second liquid path respectively communicate with the water collecting tank, when the valve core of the control valve is in the first position, the first liquid path is in communication with the water collecting tank, and when the valve core of the control valve is in the second position, the second liquid path is in communication with the water collecting tank. The control valve can facilitate the control of the on-off of the first liquid path and the second liquid path.

[0018] In some embodiments, the beverage brewing machine further comprises:

[0019] a water tank communicating with the water collecting tank through a water inlet pipeline;

[0020] a metering pump arranged on the water inlet pipe for metering the brewing liquid in the water tank to the water collecting tank;

[0021] a heating disc arranged in the water collecting tank for heating the brewing liquid in the water collecting tank, so that the beverage brewing machine can brew beverages with different temperatures.

[0022] In some embodiments, the air path assembly comprises an air pump, an air pipe and an air passage plate, the powder outlet is provided with a lower powder assembly, and the lower powder assembly has a lower powder outlet.

[0023] The air outlet of the air pump is in communication with one end of the air pipe, the other end of the air pipe is connected with the air passage plate, the air passage plate is arranged on the lower powder assembly, and the lower powder assembly and the air passage plate enclose an air passage, and the air passage is in communication with the air pipe and the lower powder outlet respectively. The air pump sends air into the air passage, and the air in the air passage blows downward at a certain pressure through the air outlet, thereby avoiding the influence of water vapor on the drying degree of the powder at the powder outlet (or the lower powder outlet), and further avoiding the blockage of the powder outlet and the caking of the powder in the powder bin.

[0024] In some embodiments, the lower powder assembly comprises a lower powder plate and a lower powder cover, the lower powder cover is buckled on the lower powder plate, the lower powder plate is provided with an annular protrusion extending upward around the outer periphery of the lower powder outlet, the bottom of the annular protrusion has an air outlet in communication with the lower powder outlet and the air passage, the air in the air passage blows downward through the air outlet, and the air in the air passage can gather at the air outlet, thereby flowing downward at a higher pressure and blowing the water vapor below the powder outlet to other positions away from the powder outlet.

[0025] In some embodiments, a plurality of air outlets are arranged along the circumference of the annular protrusion to blow the water vapor to other positions away from the powder outlet from multiple angles.

[0026] In some embodiments, the lower powder plate has an extension plate extending downward away from the air outlet corresponding to the lower powder outlet, and the extension plate extends into the mixing bin. The extension plate can make the air flow downward better and improve the dispersion effect of the water vapor at the powder outlet. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments or the related art, the drawings needed in the embodiment or the related art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0028] Figure 1 Figure 1 is a schematic diagram of the cross-sectional structure of the beverage brewing machine of the present application;

[0029] Figure 2 Figure 3 is a schematic diagram of the connection between the air path assembly, the water supply pipeline and the mixing bin of the present application;

[0030] Figure 3 Figure 4 is a schematic diagram of the connection between the air path assembly, the water supply pipeline and the mixing bin of the present application from the perspective of the top view;

[0031] Figure 4 Figure 5 is a schematic diagram of the combination structure of the mixing bin body and the bin cover of the present application;

[0032] Figure 5 Figure 6 is a schematic diagram of the cross-section of A-A in Figure 5; Figure 4

[0033] Figure 6 Figure 7 is a schematic diagram of the longitudinal cross-section of the second liquid path supplying liquid to the mixing bin of the present application;

[0034] Figure 7 Figure 8 is a schematic diagram of the transverse cross-section of the second liquid path supplying liquid to the mixing bin of the present application;

[0035] Figure 8 Figure 9 is a schematic diagram of the structure of the powder dropping plate of the present application;

[0036] Figure 9 Figure 10 is a schematic diagram of the longitudinal cross-section of the powder dropping plate of the present application.

[0037] Reference signs: 1, powder bin; 2, water tank; 3, motor; 4, power board; 5, control valve; 6, water collecting tank; 7, heating disc; 8, metering pump; 9, control panel; 11, machine body; 12, mixing bin body; 121, second water inlet; 1211, first flow channel; 1212, second flow channel; 13, bin cover; 131, first water inlet; 14, air pump; 141, air suction port; 142, air outlet; 15, air pipe; 16, air hole plate; 17, air channel plate; 18, powder dropping plate; 181, powder dropping port; 182, air flushing port; 183, extension plate; 184, annular protrusion; 19, powder dropping cover; 20, hose; 21, first water outlet nozzle; 22, first liquid path; 23, second liquid path; 24, second water outlet nozzle. DETAILED DESCRIPTION

[0038] Various aspects and features of the present application are described herein with reference to the accompanying drawings.

[0039] It should be understood that various modifications can be made to the embodiments described herein. Therefore, the above description should not be construed as limiting, but merely as exemplification of the embodiments. Those skilled in the art will envision other modifications within the scope and spirit of the present application.

[0040] ​The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the application and, together with the general description of the application given above, and the detailed description of the embodiments given below, serve to explain the principles of the present application.

[0041] These and other characteristics of the present application will become apparent from the following description of the preferred forms of embodiments of the application given, by way of non-limiting example, with reference to the accompanying drawings.

[0042] It should also be understood that, although the present application has been described above with reference to certain specific examples, the application can be embodied in many other forms in accordance with the spirit of the application.

[0043] The above and other aspects, features and advantages of the present application will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings, in which:

[0044] Specific embodiments of the present application are described hereinafter, by way of non-limiting example; however, it should be understood that the application is not limited to the embodiments described, but encompasses many other forms. Well-known and / or repetitive functions and structures are not described in detail to avoid obscuring the application unnecessarily. Therefore, specific structural and functional details disclosed herein are not intended to limit the scope of the application, but merely to set forth representative structures and features of the application, which can be used in many ways.

[0045] The specification can use phrases such as "in one embodiment", "in another embodiment", "in yet another embodiment", or "in other embodiments", which can refer to one or more of the same or different embodiments of the application.

[0046] To solve the problems in the background art, the present application provides a beverage brewing machine, which can be a milk frothing machine. It is understood that the beverage brewing machine can also be used to brew other powders to make beverages.

[0047] In combination Figure 1 The beverage brewing machine can include a machine body 11, a control panel 9, a powder bin 1, a mixing bin, a liquid supply line and a gas line assembly, which are arranged on the machine body 11.

[0048] The powder bin 1 can be arranged at the upper portion of the machine body 11, and is used to store powder to be brewed. For example, the powder bin 1 is filled with milk powder to be brewed. The top of the powder bin 1 can be provided with a bin cover 13, and the bin cover 13 can be opened to add milk powder into the powder bin 1. As in the existing milk brewing machine, the bottom of the powder bin 1 can be provided with a powder outlet, and a switch can be arranged at the powder outlet. The opening and closing of the switch can be realized by the driving action of the driving element such as the motor 3, which will not be described in detail here. When it is necessary to brew milk powder, the corresponding button on the control panel 9 can be pressed, the switch at the powder outlet is opened, and the milk powder in the powder bin 1 can fall into the mixing bin below through the powder outlet. When the brewing is completed, the switch at the powder outlet can be closed to avoid the powder in the powder bin 1 from being damp and caked, which can affect the subsequent powder discharge or the quality of the milk powder and the taste of the brewed beverage.

[0049] As mentioned above, the milk powder in the powder bin 1 can fall into the mixing bin through the powder outlet. The mixing bin is located below the powder bin 1, and when the powder outlet of the powder bin 1 is opened, the powder can fall into the mixing bin from the powder bin 1 to be brewed with the brewing liquid to make milk liquid. Here, the brewing liquid can be normal temperature water, warm water or hot water. The brewing liquid can enter the mixing bin through the liquid supply pipeline to be introduced below. The brewing liquid can brew the powder in the mixing bin, or can focus on washing the position of the corresponding powder outlet directly below the mixing bin to avoid the powder in this area adhering to the inner wall of the mixing bin.

[0050] The brewed milk liquid can flow from the bottom of the mixing bin to the milk bottle or other container placed below the mixing bin. The washed liquid can enter the milk bottle, or the milk bottle can be moved to other positions, and other containers to receive the washed liquid can be placed below the mixing bin.

[0051] As mentioned above, the liquid supply pipeline can deliver the brewing liquid into the mixing bin. In combination with Figure 2 , the liquid supply pipeline can include a first liquid path 22 and a second liquid path 23, which can respectively communicate with the mixing bin and provide the brewing liquid into the mixing bin, but the first liquid path 22 and the second liquid path 23 do not simultaneously deliver the brewing liquid into the mixing bin. For example, the first liquid path 22 and the second liquid path 23 can be controlled by the control valve 5 to control the opening and closing. When the first liquid path 22 is turned on, the second liquid path 23 is closed, and when the second liquid path 23 is turned on, the first liquid path 22 is closed.

[0052] In combination with Figure 5When the first liquid path 22 is open, the brewing liquid from the first liquid path 22 can enter the mixing bin and flow spirally from top to bottom to brew the powder in the mixing bin. The spirally flowing brewing liquid can be fully mixed with the powder, so that the powder can be brewed into milk liquid under the brewing action of the brewing liquid. After the milk liquid is brewed, the first liquid path 22 can be closed, and the second liquid path 23 can be opened, so that the brewing liquid from the second liquid path 23 can enter the powder bin 1 from the position directly below the powder outlet of the powder bin 1 and flow downward to wash the powder on the inner wall of the mixing bin. Figure 2 and Figure 6 As shown, the brewing liquid of the second liquid path 23 can flow downward along the inner wall of the mixing bin, and at the same time, the water flow can also spread to both sides along the inner wall of the mixing bin, so as to focus on washing the powder area in the mixing bin, thereby solving the problem that the powder is easy to be left in the area.

[0053] In order to solve the problem that the powder outlet is blocked by water vapor when warm water or hot water is used to brew the powder, the application sets a gas path assembly which can communicate with the powder outlet of the powder bin 1. During the brewing process in which water vapor appears, the gas path assembly can be opened to brew the beverage at the same time. Figure 2 and Figure 3 The gas path assembly can send dry gas in the environment to the position of the powder outlet. The dry gas can be blown downward from the powder outlet to send the water vapor at the position of the powder outlet to other positions, so as to avoid the water vapor from contacting the powder at the position of the powder outlet and causing the powder to be damp and block the powder outlet.

[0054] The brewing liquid introduced by the first liquid path 22 rotates to brew the powder in the mixing bin to make the beverage, and then the brewing liquid introduced by the second liquid path 23 focuses on washing the position where the powder is in the mixing bin, thereby solving the problem of powder residue in the mixing bin. Figure 7

[0055] In some embodiments, in combination with Figure 4 and Figure 5 The mixing bin can include a mixing bin body 12 and a bin cover 13. The mixing bin body 12 can be arranged on the machine body 11. The top of the mixing bin body 12 has a first opening, and the bottom of the mixing bin body 12 has a second opening. The bin cover 13 can be buckled on the first opening at the top of the mixing bin, for example, the bin cover 13 can be buckled on the first opening at the top of the mixing bin by clamping.

[0056] The brewed beverage in the mixing bin can flow out to the milk bottle or other container below through the second opening at the bottom of the mixing bin.

[0057] ​The mixing bin can be designed as a bowl-shaped structure tapering from top to bottom, so that the milk liquid in the mixing bin can flow more smoothly to the second opening.

[0058] As shown in Figure 5 , the bin cover 13 can have a first water inlet 131 eccentrically arranged and communicating with the bin inner space of the mixing bin. The first water inlet 131 communicates with the first liquid path 22. The brewing liquid of the first liquid path 22 can enter the mixing bin through the first water inlet 131 and can spiral from the top to the bottom along the inner wall of the mixing bin to the second opening. The brewing liquid spirals in the mixing bin and continuously mixes with the powder in the mixing bin, thereby achieving the brewing of the powder. That is, the brewing liquid from the first liquid path 22 can spiral from the top to the bottom along the inner bin wall of the mixing bin through the first water inlet 131 to brew the powder in the mixing bin to make a beverage.

[0059] Of course, the first water inlet 131 described above can also be eccentrically arranged on the upper part of the mixing bin body 12.

[0060] The caliber of the end of the first water inlet 131 communicating with the mixing bin can be smaller than the caliber of the end of the first water inlet 131 communicating with the first liquid path 22, so that the pressure of the brewing liquid is increased when it enters the mixing bin, and the spiral flow in the mixing bin can be formed at a faster speed, improving the mixing effect with the powder.

[0061] The first water inlet 131 can be connected to the first water outlet 21 on the first liquid path 22 through the hose 20, and the first liquid path 22 can be made of silica gel tube.

[0062] In combination Figure 6 and Figure 7 , the mixing bin body 12 has a second water inlet 121 extending downward, which is located below the powder outlet of the powder bin 1. The second water inlet 121 can communicate with the second liquid path 23. That is, the brewing liquid from the second liquid path 23 can flow downward along the inner bin wall of the mixing bin body 12 through the second water inlet 121, wash the powder remaining in the area of the inner wall of the mixing bin body 12 opposite to the powder outlet to the second opening, and then discharge the mixing bin through the second opening, thereby achieving the key washing of the area in the mixing bin where the powder is easy to remain. The brewing liquid from the first liquid path 22 and the second liquid path 23 has different flow modes in the mixing bin, which ensures the beverage brewing effect while achieving the washing of the mixing bin, avoiding the remaining of the powder in the mixing bin.

[0063] The second water inlet 121 can be connected to the second water outlet 24 of the second liquid path 23, and the second liquid path 23 can also be made of silica gel tube.

[0064] The eccentrically arranged first water inlet 131 can realize the downward spiral flow of the brewing liquid from the first liquid path 22 in the mixing bin, ensuring the brewing effect. The second water inlet 121 arranged below the powder outlet extends downward, so that the brewing liquid from the second liquid path 23 can wash the key area of the powder receiving position of the mixing bin.

[0065] In some embodiments, again in combination Figure 6 and Figure 7 The second water inlet 121 has a water inlet end and a water outlet end, the water inlet end is in communication with the second liquid path 23, and a first flow channel 1211 with both ends open can be formed on the side wall of the mixing bin body 12, and the water inlet end of the first flow channel 1211 is the water inlet end of the second water inlet 121. The water outlet end of the first flow channel 1211 can be formed at the top of the mixing bin body 12, and there is a transverse first gap between the water outlet end of the first flow channel 1211 and the cover 13, and there is a longitudinal second gap between the cover 13 and the inner wall of the mixing bin body 12, the first gap and the second gap are in communication to form a second flow channel 1212, and one end of the second flow channel 1212 in communication with the mixing bin is the water outlet end of the second water inlet 121. Since the second gap is arranged longitudinally, after the second liquid path 23 enters the water inlet end of the second water inlet 121, it enters the first gap and the second gap of the second flow channel 1212 through the first flow channel 1211, and finally flows downward along the inner wall of the mixing bin through the longitudinal second gap. The gap size of the second gap can be smaller than the gap size of the first gap to increase the liquid outlet pressure, thereby improving the washing of the key area of the mixing bin.

[0066] In some embodiments, the beverage brewing machine further comprises a water collecting tank 6 and a control valve 5, the control valve 5 can adopt a battery valve, and a power board 4 can be arranged in the machine body 11, and the power board 4 can be electrically connected with the battery valve and other electrical components. The water collecting tank 6 contains brewing liquid. The first liquid path 22 and the second liquid path 23 are respectively in communication with the water collecting tank 6, when the valve core of the control valve 5 is in the first position, the first liquid path 22 is in communication with the water collecting tank 6, and the first liquid path 22 can deliver the brewing liquid in the water collecting tank 6 to the mixing bin. When the valve core of the control valve 5 is in the second position, the second liquid path 23 is in communication with the water collecting tank 6, and the second liquid path 23 can deliver the brewing liquid in the water collecting tank 6 to the mixing bin. The control valve 5 can facilitate the control of the opening and closing of the first liquid path 22 and the second liquid path 23.

[0067] A control panel 9 can be arranged on the machine body 11, and the control panel 9 has corresponding control buttons, which can control the action of the control valve 5. For example, the control valve 5 can control the first liquid path 22 to open for a first set time and then close, and then control the second liquid path 23 to open for a second set time and then close. The opening time of the second liquid path 23 can be less than the opening time of the second liquid path 23.

[0068] In some embodiments, again in combination Figure 1The beverage brewing machine further comprises a water tank 2, a metering pump 8 and a heating plate 7.

[0069] The water tank 2 is in communication with the water collecting tank 6 through a water inlet pipe, and the water tank 2 can contain normal-temperature water.

[0070] The metering pump 8 is arranged on the water inlet pipe and used to quantitatively deliver the brewing liquid in the water tank 2 to the water collecting tank 6. The water amount of the normal-temperature water delivered into the water collecting tank 6 can be controlled as required.

[0071] The heating plate 7 is arranged in the water collecting tank 6, for example, the heating plate 7 can be arranged at the bottom of the water collecting tank 6, and the heating plate 7 can be used to heat the brewing liquid in the water collecting tank 6 to heat the water in the water collecting tank 6 to warm water or hot water. For example, heating buttons (warm water button and hot water button) can be arranged on the control panel 9, and the heating time of the heating plate 7 can be controlled after the corresponding heating button is pressed as required. In this way, the beverage brewing machine can brew beverages of different temperatures as required.

[0072] In some embodiments, the above-mentioned air path assembly can comprise an air pump 14, an air pipe 15 and an air duct plate 17, and the powder outlet is provided with a lower powder assembly, which can have a lower powder outlet 181.

[0073] Again in combination Figure 3 The air pump 14 has a suction port 141 and an air outlet 142, the suction port 141 can suck external air into the air pump 14, and then the air is delivered to the air pipe 15 through the air outlet 142. The air outlet 142 of the air pump 14 is in communication with one end of the air pipe 15, and the other end of the air pipe 15 is connected with the air duct plate 17. The air duct plate 17 has a first air duct. Specifically, the air pipe 15 can be connected with the position of the air duct plate 17 where the first air duct is formed through the air hole plate 16, for example, the air hole plate 16 is clamped at the position of the air duct plate 17 corresponding to the first air duct. A sealing ring can be arranged between the air hole plate 16 and the air duct plate 17 to prevent air leakage.

[0074] In combination Figure 2 The lower powder assembly and the air duct plate 17 enclose the air duct, for example, the lower powder assembly has a second air duct, and the air duct plate 17 is also connected with the lower powder assembly to enable the first air duct and the second air duct to communicate to form the air duct. A sealing ring can also be arranged between the air duct plate 17 and the lower powder assembly to prevent air leakage.

[0075] The air duct is also in communication with the lower powder outlet 181, and when the air pump 14 is working, in combination Figure 8 and Figure 9 the air pump 14 sends the air into the air pipe 15, the first air duct and the second air duct in sequence, and the air in the second air duct is blown from top to bottom through the lower powder outlet 181 at a certain pressure, avoiding the influence of water vapor on the drying degree of the powder at the powder outlet (or the lower powder outlet 181), and further avoiding the blockage of the powder outlet and the caking of the powder in the powder bin 1.

[0076] In some embodiments, in combination with Figure 2 The lower powder assembly includes a lower powder plate 18 and a lower powder cover 19. The lower powder cover 19 is buckled on the lower powder plate 18 at the powder outlet. The lower powder plate 18 is provided with an annular protrusion 184 extending upward around the outer periphery of the powder outlet 181. The lower powder cover 19 is attached to the top of the annular protrusion 184 to prevent gas from leaking from the contact between the lower powder cover 19 and the annular protrusion 184. The bottom of the annular protrusion 184 has a gas flushing port 182 communicating with the second gas channel and the powder outlet 181. The gas continuously introduced into the second gas channel will accumulate at the gas flushing port 182 under the action of gas pressure, and then be blown downward through the gas flushing port 182 under the action of gas pressure, thereby flowing downward at a higher pressure to blow the water vapor below the powder outlet to other positions away from the powder outlet, avoiding the water vapor flowing to the powder outlet.

[0077] In combination with Figure 9 A plurality of gas flushing ports 182 can be provided along the circumference of the annular protrusion 184 to blow the water vapor to other positions away from the powder outlet from multiple angles.

[0078] In some embodiments, in combination with Figure 9 The lower powder plate 18 has an extension plate 183 extending downward away from the gas flushing port 182 corresponding to the powder outlet 181. The extension plate 183 extends into the mixing bin. The extension plate 183 can make the gas delivered by the gas path assembly into the mixing bin flow downward in the area below the powder outlet, without spreading in the entire area at the top of the mixing bin, so that the gas flows downward better in the area below the powder outlet, improving the dispersion effect of the water vapor at the powder outlet.

[0079] The above describes in detail the multiple embodiments of the present application, but the present application is not limited to these specific embodiments. Those skilled in the art can make various modifications and embodiments on the basis of the concept of the present application, and these modifications and embodiments shall fall within the scope of the present application.

Claims

1. A beverage brewing machine, characterized in that, include: Powder silo (1), which is used to store powder to be brewed; A mixing chamber, located below the powder chamber (1), is used for mixing and brewing powder and brewing liquid; The liquid supply pipeline includes a first liquid path (22) and a second liquid path (23). The first liquid path (22) and the second liquid path (23) are respectively connected to the mixing chamber and supply brewing liquid to the mixing chamber. The brewing liquid from the first liquid path (22) flows downward spirally and brews the powder in the mixing chamber. The brewing liquid from the second liquid path (23) is introduced directly below the powder outlet of the powder chamber (1) after the first liquid path (22) is closed, and flows downward to rinse the powder on the inner wall of the mixing chamber. An air path assembly is connected to the powder outlet of the powder hopper (1), and the air path assembly blows gas downward from the powder outlet.

2. The beverage brewing machine according to claim 1, characterized in that, The mixing chamber includes a mixing chamber body (12) and a chamber cover (13). The chamber cover (13) is fastened to a first opening on the top of the mixing chamber, and the mixing chamber body (12) has a second opening at the bottom, through which the mixed and brewed beverage flows out. The cover (13) has an eccentrically positioned first inlet (131) that communicates with the internal space of the mixing chamber, and the first inlet (131) is connected to the first liquid passage (22). The mixing chamber body (12) has a downwardly extending second water inlet (121), which is located below the powder outlet of the powder chamber (1) and is connected to the second liquid passage (23).

3. The beverage brewing machine according to claim 2, characterized in that, The brewing liquid from the first liquid path (22) flows spirally downward along the inner wall of the mixing chamber through the first water inlet (131) to brew the powder in the mixing chamber to make a beverage; The brewing liquid from the second liquid path (23) flows downward along the inner wall of the mixing chamber body (12) through the second water inlet (121), washing the powder remaining in the inner wall area of ​​the mixing chamber body (12) opposite to the powder outlet to the second opening.

4. The beverage brewing machine according to claim 2, characterized in that, The second water inlet (121) has an inlet end and an outlet end. The inlet end is connected to the second liquid passage (23). The cover (13) and the inner wall of the mixing chamber body (12) enclose each other to form a downwardly extending outlet end.

5. The beverage brewing machine according to claim 1, characterized in that, The beverage brewing machine also includes a water collection tank (6) and a control valve (5). The first liquid path (22) and the second liquid path (23) are respectively connected to the water collection tank (6). When the valve core of the control valve (5) is in the first position, the first liquid path (22) is connected to the water collection tank (6). When the valve core of the control valve (5) is in the second position, the second liquid path (23) is connected to the water collection tank (6).

6. The beverage brewing machine according to claim 5, characterized in that, Beverage brewing machines also include: Water tank (2), which is connected to the water collection tank (6) through a water inlet pipe; A metering pump (8) is installed on the water inlet pipe to meterly deliver the brewing liquid in the water tank (2) to the water collection tank (6); A heating plate (7) is installed inside the water collection tank (6) for heating the brewing liquid inside the water collection tank (6).

7. The beverage brewing machine according to claim 1, characterized in that, The air circuit assembly includes an air pump (14), an air pipe (15) and an air duct plate (17), and the powder outlet is provided with a powder feeding assembly, which has a powder feeding port (181). The air outlet (142) of the air pump (14) is connected to one end of the air pipe (15), and the other end of the air pipe (15) is connected to the air passage plate (17). The air passage plate (17) is disposed on the powder feeding assembly. The powder feeding assembly and the air passage plate (17) enclose each other to form an air passage. The air passage is connected to the air pipe (15) and the powder feeding port (181) respectively.

8. The beverage brewing machine according to claim 7, characterized in that, The powder dispensing assembly includes a powder dispensing plate (18) and a powder dispensing cover (19). The powder dispensing cover (19) is fastened to the powder dispensing plate (18). The powder dispensing plate (18) has an upwardly extending annular protrusion (184) around the outer circumference of the powder dispensing port (181). The bottom of the annular protrusion (184) has an air inlet (182) that connects the powder dispensing port (181) and the air passage. The gas in the air passage is blown downward through the air inlet (182).

9. The beverage brewing machine according to claim 8, characterized in that, A plurality of air inlets (182) are provided circumferentially along the annular protrusion (184).

10. The beverage brewing machine according to claim 8, characterized in that, The powder lowering plate (18) has a downwardly extending extension plate (183) at a position away from the air inlet (182) corresponding to the powder lowering port (181), and the extension plate (183) extends into the mixing chamber.

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