Air-entrapping device and coffee machine

Abstract

The utility model discloses an air adding device and a coffee maker, and the air adding device comprises a water tank which comprises a first accommodating cavity and a second accommodating cavity surrounding the first accommodating cavity; one end of the evaporation pipe is connected with the compressor assembly, and the other end of the evaporation pipe extends into the second containing cavity and is used for absorbing heat; the water pump is connected with the water tank and used for conveying the liquid in the second containing cavity into the first containing cavity; the water outlet valve is communicated with the first accommodating cavity; a gas outlet of the gas tank is connected with the first containing cavity so that liquid in the first containing cavity can be conveyed to the water outlet valve through nitrogen, and the gas outlet is further connected with the water outlet valve so that the nitrogen can be mixed with the liquid in the water outlet valve. Liquid and nitrogen are mixed at high pressure, and the liquid in the water tank is cooled through the evaporation pipe, so that the finally output liquid has better taste and temperature.

Description

Technical Field

[0001] The present application relates to the technical field of coffee machine equipment, and particularly relates to a gas adding device and a coffee machine. Background Art

[0002] With the improvement of people's living standards, the requirement for the taste of beverages is also high. Adding nitrogen and cold brew in combination in a liquid can enhance the refreshing and bubbly taste of the beverage. Currently, there is a lack of small household appliances that combine refrigeration and nitrogen in the market. Most existing devices require additional use of a refrigerator to cool down, which takes a long time. Then, nitrogen is filled under high pressure. During the process of injecting high-pressure nitrogen, heat is easily absorbed, affecting the cold brew effect, and the effect of dissolving nitrogen is poor. The nitrogen dissolved in the low-temperature liquid has a better effect.

[0003] For example, the extraction device for nitrogen-containing beverages disclosed in the Chinese utility model patent with the publication number CN207804057U includes a pressure barrel, a first pipeline, a second pipeline, a discharger, and a refrigeration unit. It requires an additional refrigeration unit for cooling, and after the extraction is completed, the original material filter bag needs to be taken out for secondary pressure supplementation, which is cumbersome and dangerous to operate; it is also necessary to put the pressure barrel into the refrigeration unit, which is complex to operate and has a long refrigeration time. Utility Model Content

[0004] The purpose of the embodiments of the present application is to provide a gas adding device, and the gas adding device includes:

[0005] A water tank, which includes a first cavity and a second cavity surrounding the first cavity;

[0006] An evaporation pipe, one end of which is connected to a compressor assembly, and the other end extends into the second cavity for heat absorption;

[0007] A water pump, which is connected to the water tank and is used to transport the liquid in the second cavity to the first cavity;

[0008] An outlet valve, which is communicated with the first cavity;

[0009] A gas tank, the gas outlet of which is connected to the first cavity, so that nitrogen transports the liquid in the first cavity to the outlet valve, and the gas outlet is also connected to the outlet valve, so that nitrogen is mixed with the liquid in the outlet valve. The present application mixes the liquid and nitrogen under high pressure, and cools the liquid in the water tank through the evaporation pipe, so that the finally output liquid has a better taste and temperature. At the same time, the compressed nitrogen is output as kinetic energy, greatly reducing the residual liquid in the pipeline through which the liquid flows, which is beneficial to keeping the pipeline clean.

[0010] As an alternative embodiment, a partition plate is provided inside the water tank. The partition plate divides the water tank into a first cavity and a second cavity. The first cavity is provided with a first water inlet connected to the water outlet of the water pump, an air inlet connected to the air tank, and a water outlet connected to the water inlet of the water outlet valve. The second cavity is provided with a second water inlet and a water inlet connected to the water inlet of the water pump. Water is added to the second cavity through the second water inlet. The partition plate provided inside the water tank not only clearly divides the first cavity and the second cavity, but also realizes the orderly flow and distribution of the liquid inside the water tank through a reasonable pipeline design, improving the working efficiency of the device and the effect of liquid treatment.

[0011] As an alternative embodiment, the air outlet of the air tank is connected to the air inlet of the first cavity through a first air path, and the air outlet is also connected to the air inlet of the water outlet valve through a second air path. By providing the first air path and the second air path, the flow direction and distribution of nitrogen can be controlled more flexibly, ensuring the full mixing of nitrogen and liquid in the first cavity and the water outlet valve, and improving the mixing effect and the performance of the device.

[0012] As an alternative embodiment, it further includes:

[0013] A main air path, one end of which is connected to the air outlet of the air tank;

[0014] An electromagnetic valve assembly, which includes an inlet end and two outlet ends. The inlet end is connected to the other end of the main air path, and the two outlet ends are respectively connected to the first air path and the second air path. The addition of the main air path and the electromagnetic valve assembly provides a more precise and controllable nitrogen supply system for the gas adding device. The precise control of the nitrogen flow can be achieved through the adjustment of the electromagnetic valve, further improving the working efficiency and stability of the device.

[0015] As an alternative embodiment, it further includes:

[0016] An air pump, which is connected to the air tank and is used to compress nitrogen and transport it into the air tank. The setting of the air pump enables the gas adding device to compress nitrogen independently and transport it into the air tank, reducing the dependence on an external nitrogen source, and improving the self-sufficiency ability and the use convenience of the device.

[0017] As an alternative embodiment, the end of the evaporation tube extending into the second cavity is wound around the outer wall of the first cavity. The design that the end of the evaporation tube in the second cavity is wound around the outer wall of the first cavity can make more effective use of the heat absorption area of the evaporation tube, accelerate the cooling process of the liquid, and improve the cooling efficiency.

[0018] As an optional embodiment, the evaporation tube is of a spiral structure and is in contact with the outer wall of the first cavity. The evaporation tube with a spiral structure in contact with the outer wall of the first cavity increases the heat exchange area, improves the heat exchange efficiency, and can ensure the temperature of the liquids in both the first cavity and the second cavity at the same time.

[0019] Another object of the embodiments of the present application is to provide a coffee machine, which includes a coffee machine body and also includes the gas adding device as described above. Integrating this gas adding device into the coffee machine can provide an innovative nitrogen and liquid mixing technology for the coffee machine, increasing the functional diversity of the coffee machine.

[0020] The beneficial effects of the embodiments of the present application are as follows:

[0021] The structure of the present application is simple. The compressor assembly and the evaporation tube are used to cool the liquid in the water tank. During use, the required liquid is transported from the second cavity to the first cavity through a water pump and is kept warm through the evaporation tube. In this way, nitrogen can be quickly incorporated during the low-temperature process, and the effect of nitrogen dissolving in the liquid is good. It is convenient to use and improves the user experience. At the same time, the compressed nitrogen is used as kinetic energy output, greatly reducing the residual liquid in the pipeline through which the liquid flows, which is beneficial to keeping the pipeline clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of the gas adding device according to the embodiment of the present application;

[0023] Figure 2 is an exploded view of the gas adding device according to the embodiment of the present application;

[0024] Figure 3 is a schematic structural diagram of the evaporation tube and the water tank according to the embodiment of the present application.

[0025] REFERENCE SIGNS:

[0026] 1. air pump; 2. gas tank; 21. air outlet; 3. solenoid valve assembly; 31. inlet end; 32. outlet end; 4. water outlet valve; 5. water tank; 51. first cavity; 52. second cavity; 53. partition plate; 54. first water inlet; 55. air inlet; 56. water outlet; 57. water filling port; 6. compressor assembly; 7. evaporation tube; 8. water pump; 90. main gas path; 91. first gas path; 92. second gas path. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] Reference is made herein to the various aspects and features of the present application with reference to the accompanying drawings.

[0028] It should be understood that various modifications can be made to the embodiments claimed herein. Therefore, the above specification should not be construed as limiting, but merely as exemplifying the embodiments. Those skilled in the art will envision other modifications within the scope and spirit of the present application.

[0029] The drawings included in and forming a part of the specification illustrate embodiments of the present application and, together with the general description of the present application given above and the detailed description of the embodiments given below, are used to explain the principles of the present application.

[0030] These and other features of the present application will become apparent from the following description of the preferred forms of the embodiments given by way of non-limiting examples with reference to the drawings.

[0031] It should also be understood that although the present application has been described with reference to some specific examples, those skilled in the art can surely implement many other equivalent forms of the present application.

[0032] When taken in conjunction with the drawings, the above and other aspects, features and advantages of the present application will become more apparent in view of the following detailed description.

[0033] Specific embodiments of the present application are hereinafter described with reference to the drawings; however, it should be understood that the embodiments claimed are merely examples of the present application and that the present application may be implemented in various ways. Well-known and / or repetitive functions and structures are not described in detail to avoid obscuring the present application with unnecessary or redundant details. Accordingly, the specific structural and functional details claimed herein are not intended to be limiting, but rather are merely a basis and representative basis for the claims to teach those skilled in the art to use the present application in substantially any appropriate detailed structure in a variety of ways.

[0034] This specification may use the phrases "in one embodiment", "in another embodiment", "in yet another embodiment" or "in other embodiments", each of which may refer to one or more of the same or different embodiments of the present application.

[0035] An embodiment of the present application provides a gas charging device, such as Figure 1 and Figure 2 shown, the gas charging device includes a water tank 5, an evaporation tube 7, a water pump 8, a water outlet valve 4 and a gas tank 2.

[0036] As Figure 3 shown, the water tank 5 includes a first cavity 51 and a second cavity 52 surrounding the first cavity 51. Specifically, a partition plate 53 is provided in the water tank 5, and the partition plate 53 divides the water tank 5 into the first cavity 51 and the second cavity 52.

[0037] As Figure 1 and Figure 3As shown, the first cavity 51 is provided with a first water inlet 54 connected to the water outlet 56 of the water pump 8, an air inlet 55 connected to the air tank 2, and a water outlet 56 connected to the water inlet of the water outlet valve 4. The second cavity 52 is provided with a second water inlet 57 and a water inlet 58 connected to the water inlet of the water pump 8. Water is added into the second cavity 52 through the second water inlet 57. Among them, the second water inlet 57 is a port communicating with the second cavity 52 (not shown in the figure of this application).

[0038] The partition plate 53 arranged in the water tank 5 can be cylindrical, with a first cavity 51 formed inside the cylinder and a second cavity 52 formed outside the cylinder. The housing of the water tank 5 can also be cylindrical, and the axis of the housing and the axis of the partition plate 53 are collinear, so that the first cavity 51 is located in the middle of the water tank 5, which is convenient for the formation of the second cavity 52.

[0039] The arrangement of the partition plate 53 arranged in the water tank 5 not only clearly divides the first cavity 51 and the second cavity 52, but also realizes the orderly flow and distribution of the liquid inside the water tank 5 through a reasonable pipeline design, improving the working efficiency of the device and the effect of liquid treatment.

[0040] As Figure 1 and Figure 3 shown, one end of the evaporation tube 7 is connected to the compressor assembly 6, and the other end extends into the second cavity 52 to absorb the heat of the liquid in the second cavity 52, so that the temperature of the liquid in the second cavity 52 is reduced.

[0041] Specifically, the end of the evaporation tube 7 extending into the second cavity 52 is wound around the outer wall of the first cavity 51. The end of the evaporation tube 7 in the second cavity 52 is wound around the outer wall of the first cavity 51. This design can make more effective use of the heat absorption area of the evaporation tube 7, accelerate the cooling process of the liquid, and improve the cooling efficiency.

[0042] Furthermore, the evaporation tube 7 is of a spiral structure to extend the length of the evaporation tube 7 in the second cavity 52. In addition, the evaporation tube 7 can be arranged in a form in contact with the outer wall of the first cavity 51. The spiral evaporation tube 7 is in contact with the outer wall of the first cavity 51, increasing the heat exchange area, improving the heat exchange efficiency, and being able to ensure the temperatures of the liquids in both the first cavity 51 and the second cavity 52 at the same time.

[0043] In this application, by combining the compressor assembly 6 with the evaporation tube 7, the evaporation tube 7 is directly immersed in the liquid in the second cavity 52, which can achieve rapid refrigeration. The water tank 5 is provided with a first cavity 51, and the liquid to be drunk can be pumped from the second cavity 52 into the first cavity 51 through the water pump 8. By contacting the outer wall of the first cavity 51 with the evaporation tube 7, the liquid to be drunk can be secondarily insulated to reduce the loss of cold.

[0044] As shown Figure 1 in the figure, the water pump 8 is connected to the water tank 5 and is used to transport the liquid in the second cavity 52 to the first cavity 51. The water outlet valve 4 is communicated with the first cavity 51.

[0045] The air outlet 21 of the gas tank 2 is connected to the first cavity 51 to send nitrogen in the gas tank 2 into the first cavity 51, so that the liquid in the first cavity 51 is transported to the water outlet valve 4 under the action of nitrogen. The air outlet 21 is also connected to the water outlet valve 4 to mix nitrogen with the liquid in the water outlet valve 4. In this application, the liquid and nitrogen are mixed under high pressure, and the temperature in the water tank 5 is cooled through the evaporation pipe 7, so that the finally output liquid has better taste and temperature. At the same time, the compressed nitrogen is output as kinetic energy, greatly reducing the residual liquid in the pipeline through which the liquid flows, which is beneficial to keeping the pipeline clean.

[0046] As shown Figure 1 in the figure, the air outlet 21 of the gas tank 2 is connected to the air inlet 55 of the first cavity 51 through the first air path 91, and the air outlet 21 is also connected to the air inlet 55 of the water outlet valve 4 through the second air path 92. By setting the first air path 91 and the second air path 92, the flow direction and distribution of nitrogen can be controlled more flexibly, ensuring the full mixing of nitrogen and liquid in the first cavity 51 and the water outlet valve 4, and improving the mixing effect and the service performance of the device.

[0047] In addition, as shown Figure 1 in the figure, the gas adding device may further include a main air path 90 and a solenoid valve assembly 3. One end of the main air path 90 is connected to the air outlet 21 of the gas tank 2, and the solenoid valve assembly 3 includes an inlet end 31 and two outlet ends 32.

[0048] The inlet end 31 is connected to the other end of the main air path 90, and the two outlet ends 32 are respectively connected to the first air path 91 and the second air path 92. The addition of the main air path 90 and the solenoid valve assembly 3 provides a more accurate and controllable nitrogen supply system for the gas adding device. The precise control of the nitrogen flow rate can be realized through the adjustment of the solenoid valve assembly 3, further improving the working efficiency and stability of the device.

[0049] As shown Figure 1 in the figure, the gas adding device further includes an air pump 1. The air pump 1 is connected to the gas tank 2 and is used to compress nitrogen and transport it into the gas tank 2. The setting of the air pump 1 enables the gas adding device to compress nitrogen independently and transport it into the gas tank 2, reducing the dependence on an external nitrogen source, and improving the self-sufficiency ability and the use convenience of the device.

[0050] In this application, the water circuit and the gas circuit are connected through an air pump 1, a compressor, a water tank 5, a water pump 8, and a solenoid valve assembly 3, enabling one-key simple operation for beverage making and pipeline cleaning. The built-in air pump 1 and the gas tank 2 can freely adjust the pressure to achieve extraction flavors under different pressures.

[0051] During use, the evaporation tube 7 is welded to the compressor assembly 6 to form a refrigeration module. Then, the other end of the evaporation tube 7 is coiled inside the water tank 5 filled with liquid. Through the operation of the compressor assembly 6, the evaporation tube 7 absorbs heat to lower the temperature of the liquid in the second cavity 52 to the required temperature. The liquid in the second cavity 52 is transported to the first cavity 51 by the water pump 8 for storage and heat preservation.

[0052] The air pump 1 compresses nitrogen and transports it to the gas tank 2 for storage. When the gas tank 2 stores nitrogen at the required pressure, the solenoid valve assembly 3 can be activated to simultaneously open the two outlet ends 32, releasing the compressed nitrogen stored in the gas tank 2 to the air inlet 55 of the first cavity 51 and the air inlet 55 of the water outlet valve 4. The compressed nitrogen generates kinetic energy to transport the refrigerated liquid in the first cavity 51 to the water inlet of the water outlet valve 4. The liquid entering the water outlet valve 4 tumbles and mixes with the nitrogen transported by one of the outlet ends 32, and the finally output liquid has a rich effect of tumbling and refreshing bubbles.

[0053] At the same time, since compressed nitrogen (or the air pump 1) is used as the kinetic energy output, which is different from the normal output of the water pump 8 for liquid, it can significantly reduce the residual liquid in the pipeline, which is beneficial to reducing pipeline blockage and avoiding the influence of residual liquid on the quality of the second cup of beverage.

[0054] The embodiment of this application also provides a coffee machine, including a coffee machine body and the aforementioned gas adding device. Integrating this gas adding device into the coffee machine can provide an innovative nitrogen and liquid mixing technology for the coffee machine, increasing the functional diversity of the coffee machine.

[0055] The above embodiments are only exemplary embodiments of this application and are not used to limit this application. The protection scope of this application is defined by the claims. Those skilled in the art can make various modifications or equivalent replacements within the essence and protection scope of this application, and such modifications or equivalent replacements should also be regarded as falling within the protection scope of this application.

Claims

1. A gas filling device, characterized in that: include: A water tank (5), comprising a first chamber (51) and a second chamber (52) surrounding the first chamber (51); An evaporation tube (7), one end of which is connected to the compressor assembly (6) and the other end of which extends into the second volume chamber (52) for absorbing heat; a water pump (8), connected to the water tank (5), and used for transporting the liquid in the second cavity (52) to the first cavity (51); a water outlet valve (4), which is in communication with the first chamber (51); The gas tank (2) has a gas outlet (21) connected to the first chamber (51) so that the nitrogen gas can transport the liquid in the first chamber (51) to the water outlet valve (4); the gas outlet (21) is also connected to the water outlet valve (4) so ​​that the nitrogen gas can mix with the liquid in the water outlet valve (4).

2. A gas filling device as claimed in claim 1, characterized in that: A partition plate (53) is provided in the water tank (5), and the partition plate (53) divides the water tank (5) into a first chamber (51) and a second chamber (52); the first chamber (51) is provided with a first water inlet (54) connected to a water outlet (56) of the water pump (8), an air inlet (55) connected to the gas tank (2), and a water outlet (56) connected to a water inlet of the water outlet valve (4); the second chamber (52) is provided with a second water inlet (57) and an upper water inlet (58) connected to a water inlet of the water pump (8); water is added to the second chamber (52) through the second water inlet (57).

3. A gas filling device as claimed in claim 1, characterized in that: The air outlet (21) of the gas tank (2) is connected to the air inlet (55) of the first chamber (51) via a first air path (91), and the air outlet (21) is also connected to the air inlet (55) of the water outlet valve (4) via a second air path (92).

4. A gas filling device as claimed in claim 3, characterized in that: Also includes: A main gas path (90), one end of which is connected to the gas outlet (21) of the gas tank (2); The solenoid valve assembly (3) comprises an inlet end (31) and two outlet ends (32), wherein the inlet end (31) is connected to the other end of the main gas path (90), and the two outlet ends (32) are respectively connected to the first gas path (91) and the second gas path (92).

5. A gas filling device as claimed in claim 1, characterized in that: Also includes: An air pump (1) is connected to the gas tank (2) and is used for compressing nitrogen and delivering it into the gas tank (2).

6. A gas filling device as claimed in claim 1, characterized in that: One end of the evaporation tube (7) extending into the second cavity (52) surrounds the outer wall of the first cavity (51).

7. A gas filling device as claimed in claim 6, characterized in that: The evaporation tube (7) is a spiral structure, and the evaporation tube (7) is in contact with the outer wall of the first cavity (51).

8. A coffee machine, characterized in that: The invention comprises a coffee machine body and also comprises a gas filling device as described in any one of claims 1 to 7.

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