CN114190769A - Air pressure adjusting device, coffee machine and coffee liquid preparation method - Google Patents

Abstract

The invention discloses an air pressure adjusting device, a coffee machine and a coffee liquid preparation method, wherein the air pressure adjusting device comprises a bearing container and a cup separating assembly; the bearing container is provided with a first channel; the cup separating assembly comprises a cup separating body, the cup separating body and the bearing container are arranged in a sealing mode and matched with each other to form an accommodating cavity, and the outlet end of the first channel is communicated with the accommodating cavity; the cup body is also provided with a second channel communicated with the containing cavity. The technical scheme provided by the air pressure adjusting device, the coffee machine and the coffee liquid preparation method can adjust the air inflow entering the containing cavity according to the use or brewing requirement, so that the mixing amount of brewed coffee liquid and air is controlled, the air pressure is regulated, the coffee liquid containing preset air pressure is prepared, the effect of adjusting the coffee quality is achieved, and the aroma, the taste and the use experience of consumers of the coffee are effectively improved.

Description

Air pressure adjusting device, coffee machine and coffee liquid preparation method

Technical Field

The invention belongs to the technical field of coffee preparation, and particularly relates to an air pressure adjusting device, a coffee machine and a coffee liquid preparation method.

Background

The process of brewing coffee liquid by the coffee cake machine has pressure, but when the coffee liquid extracted by high-temperature water pressure flows into the accommodating cavity through the inlet, positive air pressure or negative air pressure is generated in the accommodating cavity, so that the pushing or adsorption phenomenon occurs, and the flow speed and the direction of the coffee liquid flowing out can be changed along with the pressure and the air pressure of the coffee liquid discharged from the coffee outlet. For consumers, the time for each brewing of the coffee is different, and when the coffee flows into the cup, the downward flowing coffee column is slow and fast, and forms a bent liquid column, thereby reducing the quality of the product and causing poor use feeling of the consumers.

In severe cases, the coffee liquid discharged and flowed out due to the generation of overlarge negative air pressure is in a dripping shape and is adsorbed in the accommodating cavity, and the coffee liquid overflows the inside of the accommodating cavity, so that the brewing can be completed only by slowly dripping for a very long time.

Disclosure of Invention

The invention aims to provide an air pressure adjusting device, a coffee machine and a coffee liquid preparation method, which are used for improving the phenomenon that in the process of brewing coffee liquid by a coffee cake machine in the prior art, when coffee liquid extracted by high-temperature water pressure flows into a containing cavity through an inlet, positive air pressure or negative air pressure is generated, and the phenomenon of pushing, absorbing or overflowing the inside of the containing cavity is caused.

The technical scheme is as follows:

an air pressure regulating device comprises a bearing container and a cup dispensing assembly;

the carrying container is provided with a first channel; the cup separating assembly comprises a cup separating body, the cup separating body and the bearing container are arranged in a sealing mode and matched with each other to form a containing cavity, and the outlet end of the first channel is communicated with the containing cavity; the cup body is also provided with a second channel communicated with the containing cavity.

In one embodiment, the inlet end of the second passage is externally arranged on the cup body, and the outlet end of the second passage is communicated with the accommodating cavity.

In one embodiment, the second channel extends along one end of the cup body away from the carrying container to one end close to the carrying container to be communicated with the accommodating cavity.

In one embodiment, the outlet ends of the first and second channels are opposite and staggered.

In one embodiment, the upper surface of the open end of the cup body protrudes upwards to form a step, the lower surface of the bearing container protrudes upwards to form a ring of clamping edge, and the cup body is inserted into the clamping edge through the step to be sealed with the bearing container.

In one embodiment, the cup dispensing assembly further comprises an adjustment member; the regulating part including adjust the body and with adjust the body and rotate the adjusting valve who is connected, adjust the body set up in the entry end of second passageway, just adjust the body be provided with at least one with the air inlet duct of second passageway entry end intercommunication, adjusting valve is used for adjusting the switching of air inlet duct is in order to adjust the atmospheric pressure height of holding the during operation of cavity internal work.

In one embodiment, a bleed member is disposed at the first passage and has a bleed aperture disposed coaxially with a central axis of the receiving cavity.

In one embodiment, the carrying container comprises a housing, a lid and a coffee cake container; the lid closes the piece lid and fits form the installation cavity on the casing, the coffee cake container with divide the cup body to set up in the installation cavity along installation cavity depth direction, just the coffee cake container with the lid cooperates and forms the brew chamber, divide the cup body with the cooperation of coffee cake container forms hold the cavity.

A coffee machine comprising a main body, a water tank and an air pressure regulating device as described above; the water tank and the air pressure adjusting device are both arranged on the main body; the main body is provided with a control switch, and the water tank is controlled by the control switch to be communicated with the bearing container.

A coffee liquid preparation method, based on the air pressure regulating device as described above;

extracting coffee raw materials with water, and introducing the coffee raw materials into the bearing container to obtain a coffee solution;

the coffee solution flows into the accommodating cavity through the first channel, air is introduced into the accommodating cavity through the second channel, the first channel and the second channel are matched to adjust the amount of the mixed air and the coffee solution to obtain coffee solution, the air pressure in the accommodating cavity is adjusted, and the flow rate of the coffee solution is adjusted.

The technical scheme provided by the invention has the following advantages and effects:

the air pressure adjusting device forms coffee liquid with adjustable air pressure by extracting and brewing coffee liquid in the bearing container and introducing the coffee liquid into a containing cavity formed by matching the bearing container and the cup separating body through the first channel and air through the second channel of the cup separating body, wherein the containing cavity is formed by sealing and matching the cup separating body and the bearing container so that a sealing surface structure is formed on the contact surface of the cup separating body and the bearing container, thereby effectively avoiding the influence of the introduction of the external air into the containing cavity through the contact position between the cup separating body and the bearing container on the air inlet amount, and controlling the air inlet amount of the second channel by separately arranging the second channel at the cup separating body for air input, so as to adjust the air inlet amount entering the containing cavity according to the use or brewing requirements and further control the mixing amount of the brewed coffee liquid and the air, the pressure is regulated and controlled, coffee liquid containing preset pressure is prepared, the effect of regulating the quality of coffee is achieved, and the aroma and the taste of the coffee and the use experience of consumers are effectively improved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles and effects of the invention.

Unless otherwise specified or defined, the same reference numerals in different figures refer to the same or similar features, and different reference numerals may be used for the same or similar features.

FIG. 1 is a schematic perspective view of a coffee maker according to an embodiment of the present invention;

FIG. 2 is a schematic sectional view of the coffee maker of FIG. 1, illustrating the air pressure regulating device;

fig. 3 is an enlarged schematic view of a sectional structure of the air pressure adjusting device of fig. 2;

FIG. 4 is an exploded view of the air pressure regulating device;

FIG. 5 is a schematic diagram of the construction of the coffee cake container and cup dispensing assembly of one embodiment;

FIG. 6 is a schematic cross-sectional view of the assembled coffee cake container and cup assembly of FIG. 5;

FIG. 7 is a schematic view of a partial cross-sectional structure of the coffee maker of FIG. 1 with respect to the air pressure regulating device;

FIG. 8 is a schematic cross-sectional view of another embodiment of a coffee cake container and cup assembly in an unassembled state;

FIG. 9 is a cross-sectional structural view of the assembled coffee cake container and cup assembly of FIG. 8;

FIG. 10 is a schematic illustration of the construction of the coffee cake container and cup assembly of FIG. 8;

fig. 11 is a structural schematic view of the cup body of fig. 8.

Description of reference numerals:

1000. a coffee machine;

100. an air pressure adjusting device;

1. a carrying container; 11. a brewing cavity; 12. a first channel; 13. clamping edges; 14. a housing; 15. a closure member; 16. a coffee cake container; 17. a water outlet device; 171. a shower head; 172. a shower head cover; 2. a cup separating assembly; 21. a cup body; 22. a second channel; 23. a step; 24. an adjustment member; 241. adjusting the body; 242. adjusting the valve; 3. an accommodating cavity; 4. a pressure relief piece; 41. a bleed aperture; 5. a drainage member; 6. a filter member; 7. a seal ring;

200. a main body; 210. a load-bearing platform; 300. a water tank.

Detailed Description

In order to facilitate an understanding of the invention, specific embodiments thereof will be described in more detail below with reference to the accompanying drawings.

Unless specifically stated or otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In the case of combining the technical solutions of the present invention in a realistic scenario, all technical and scientific terms used herein may also have meanings corresponding to the purpose of achieving the technical solutions of the present invention.

As used herein, unless otherwise specified or defined, "first" and "second" … are used merely for name differentiation and do not denote any particular quantity or order.

As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items, unless specified or otherwise defined.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present; when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present; when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present.

It should be noted that, in the present embodiment, the air pressure adjusting device 100 is mainly used for extracting and brewing coffee cakes, and has the function of adjusting the air pressure in the cavity. Of course, in other embodiments, the air pressure regulating device 100 may also perform overflow safety protection under severe negative air pressure, and is not limited herein.

Example one

The present embodiment provides an air pressure adjusting apparatus 100, as shown in fig. 1 to 11, the air pressure adjusting apparatus 100 includes a carrying container 1 and a cup dispensing assembly 2. It should be noted that the carrying container 1 is used for placing a coffee cake and introducing clean water, and in this embodiment, the carrying container 1 has a brewing chamber 11 therein, the brewing chamber 11 is used for placing a coffee cake and introducing clean water, and the coffee cake can form coffee liquid under the extraction and brewing of the clean water. The carrying container 1 further has a first passage 12, which first passage 12 is capable of communicating with its own brewing chamber 11, so that brewed coffee flows out through the first passage 12.

As shown in fig. 2 to 4, the cup dispensing assembly 2 includes a cup dispensing body 21, the cup dispensing body 21 is disposed in a sealing manner with the container 1 and is matched with the container 1 to form a receiving cavity 3, so that a sealing surface structure is formed on a contact surface between the cup dispensing body 21 and the container 1, and external air is effectively prevented from entering the receiving cavity 3 through a contact position between the cup dispensing body 21 and the container 1. The outlet end of the first passage 12 communicates with the receiving chamber 3, and the brewed coffee flows into the receiving chamber 3 through the outlet end of the first passage 12. The cup body 21 also has a second passage 22 communicating with the housing cavity 3. It should be noted that, in the present embodiment, the second passage 22 is used for introducing air, so that the air enters the accommodating cavity 3 through the second passage 22 and the coffee liquid flowing into the accommodating cavity 3 from the first passage 12 is subjected to air pressure regulation, so that the brewed coffee liquid can rapidly flow out in a short time and be supplied to a user for tasting.

It will be appreciated that the working principle of the air pressure regulating device 100 for the coffee making process is substantially as follows: the coffee cake and the clean water are added into the bearing container 1 of the air pressure adjusting device 100, the coffee cake forms coffee liquid under the extraction and the brewing of the clean water, then the brewed coffee liquid is introduced into the accommodating cavity 3 through the first channel 12, at the moment, air is introduced into the second channel 22 to the accommodating cavity 3, the coffee liquid and the air are mixed in the accommodating cavity 3, the air pressure is adjusted to be positive, the coffee liquid flowing and discharging at an adjustable speed is formed, then the coffee liquid is contained and taken by a cup placed below the cup body 21, the cup contains the coffee liquid, and grease coalescence is formed on the top surface of the cup liquid. Specifically, in the present embodiment, tests show that when brewing 100 to 300ml of coffee liquid, and the adjustable range of the amount of inflow air is 0 within two minutes, the accommodating cavity 3 with the diameter of 65mm to 100mm has a golden yellow and thick grease, but the gas-liquid mixing effect is poor. When the adjustable range of the amount of the inflow air is adjusted to the maximum amount, the amount of grease is less, but the gas-liquid mixing effect is the best.

In summary, the air pressure adjusting device 100 extracts and brews coffee liquid in the carrying container 1, and introduces coffee liquid into the containing cavity 3 formed by matching the carrying container 1 and the cup body 21 through the first channel 12 and air through the second channel 22 of the cup body 21 to mix air and liquid, wherein the containing cavity 3 is formed by sealing and matching the cup body 21 and the carrying container 1, so that the contact surface between the cup body 21 and the carrying container 1 forms a sealing surface structure, which effectively prevents external air from being introduced into the containing cavity 3 through the contact position between the cup body 21 and the carrying container 1 to affect the air intake, and the air input is performed through separately arranging the second channel 22 at the cup body 21, which can control the air intake of the second channel 22, so as to adjust the air intake into the containing cavity 3 according to the use or brewage requirements, therefore, the mixing amount of the brewed coffee liquid and the air is controlled, the air pressure is regulated and controlled, the coffee liquid containing the preset air pressure is prepared, the coffee liquid can flow and be discharged quickly, the effect of regulating the quality of the coffee is achieved, and the fragrance, the taste and the use experience of consumers of the coffee are effectively improved.

In some embodiments, as shown in fig. 5 and 6, the inlet end of the second channel 22 is externally arranged on the cup body 21, and the outlet end of the second channel 22 is communicated with the accommodating cavity 3. It can understand, through arranging the entry end of second passageway 22 outward in branch cup body 21, can be convenient for to the second passageway 22 outward in the air input of the entry end of branch cup body 21 regulate and control to the air mass flow that gets into second passageway 22 is adjusted, thereby can be according to the use or brew requirement quick and conveniently adjust the air input that gets into and hold cavity 3, reach and adjust the gas-liquid mixture volume and adjust the effect of atmospheric pressure height.

In some embodiments, as shown in fig. 6, the second channel 22 extends along the end of the cup body 21 away from the carrier container 1 to the end close to the carrier container 1 to communicate with the receiving cavity 3. It should be noted that one end of the cup separating body 21 away from the container 1 is a bottom end, one end of the cup separating body 21 close to the container 1 is a top end, and an inlet end of the second channel 22 is close to the bottom end of the cup separating body 21 and extends into the accommodating cavity 3 from the bottom end to the top end of the cup separating body 21; and the outlet end of the first channel 12 and the outlet end of the second channel 22 are arranged in an opposite and staggered manner. It can be understood that, through the air intake from the bottom end of the cup body 21 and the air intake from the position of the cup body 21 near the top end into the containing cavity 3, the whole containing cavity 3 can be filled with the air so as to be fully mixed with the coffee liquid introduced into the containing cavity 3, and the mixing quality is improved. In addition, the outlet ends of the first channel 12 and the second channel 22 are opposite and staggered, so that the purpose of safe overflow can be achieved when severe negative pressure is formed in the accommodating cavity 3.

In some embodiments, as shown in fig. 6, the upper surface of the open end of the cup body 21 protrudes upward to form a step 23, the lower surface of the container 1 is recessed upward to form a ring of the rim 13, and the cup body 21 is inserted into the rim 13 through the step 23 to be sealed with the container 1. Understandably, the step 23 is inserted into the clamping edge 13, so that the contact area between the cup separating body 21 and the bearing container 1 can be increased, the contact tightness between the cup separating body 21 and the bearing container 1 can be effectively improved, the sealing performance between the contact surface of the cup separating body 21 and the bearing container 1 is further improved, air infiltration is effectively avoided, the step 23 is formed by upward protruding the cup separating body 21, the accommodating cavity 3 can have a larger accommodating space, and the accommodating amount of the accommodating cavity 3 for coffee liquid is increased. Preferably, in some embodiments, a sealing ring 7 is further disposed between the step 23 and the clamping edge 13, and particularly, the sealing ring 7 may be a silicone sealing ring or the like, so as to further effectively improve the sealing performance of the cup body 21 and the carrier container 1.

In some embodiments, as shown in fig. 5 and 6, the cup dispensing assembly 2 further includes an adjustment member 24; the adjusting member 24 includes an adjusting body 241 and an adjusting valve 242 rotatably connected to the adjusting body 241, the adjusting body 241 is disposed at an inlet end of the second passage 22, the adjusting body 241 is provided with at least one air inlet slot communicated with the inlet end of the second passage 22, and the adjusting valve 242 is used for adjusting the opening and closing of the air inlet slot. It can be understood that, through set up regulating part 24 in second passageway 22 department, can be through adjusting the switching and the degree of opening of valve 242 rotation operation in order to adjust the inlet duct to conveniently adjust the intake-air quantity of second passageway 22, with can be according to the use or brew requirement quick adjustment get into the intake-air quantity that holds cavity 3, thereby adjust the air pressure height of holding in the cavity 3 during operation, easy operation is convenient. Of course, in other embodiments, the amount of intake air of the second passage 22 may be effectively controlled by other components, such as an electromagnetic valve, and the like, and is not particularly limited herein.

In some embodiments, as shown in fig. 3 and 4, the carrying container 1 comprises a housing 14, a lid 15 and a coffee cake container 16; the cover part 15 covers the shell 14 to form a mounting cavity, the coffee cake container 16 and the cup separating body 21 are arranged in the mounting cavity along the depth direction of the mounting cavity, the coffee cake container 16 and the cover part 15 are matched to form a brewing cavity 11, and the cup separating body 21 and the coffee cake container 16 are matched to form a containing cavity 3. It should be noted that the housing 14 and the cover member 15 are detachably connected to each other, so as to facilitate the assembly and disassembly of the coffee cake and the cleaning thereof. Specifically, in the present embodiment, during assembly, the cup body 21 is placed on the housing 14, the coffee cake container 16 is taken, a coffee cake is placed in a preformed groove of the coffee cake container 16, and then the coffee cake container 16 is aligned with the cup body 21 and placed on the cup body 21, so that the coffee cake container and the top surface of the cup body 21 are mutually supported and matched to form a sealing structure; the cover element 15 is pressed downwards, at the moment, the cover element 15 is connected with the shell 14 and locked, and meanwhile, the brewing power switch is started to carry out brewing operation.

In some embodiments, as shown in fig. 4, the carrying container 1 further comprises a water outlet 17, the water outlet 17 is connected to the cover 15 and is located in the brewing chamber 11, and the water outlet 17 is used for the water receiving tank 300 to supply water to the brewing chamber 11. In this embodiment, the water outlet device 17 includes a shower head 171 and a shower cover 172, the shower head 171 is connected to the cover member 15, the shower cover 172 is connected to the shower head 171, and the water outlet of the shower cover 172 faces the brewing chamber 11, so as to spray and mix the coffee cake placed in the brewing chamber 11, thereby further improving the extraction and brewing effects.

In some embodiments, as shown in fig. 3, 5 and 6, a through hole is opened at an end of the casing 14 away from the covering element 15, that is, a through hole is opened at the bottom of the casing 14, the cup separating body 21 is provided with a drainage member 5, the drainage member 5 has a drainage channel communicated with the accommodating cavity 3, and the drainage member 5 penetrates through the through hole and extends out of the installation cavity. As can be understood, the drainage piece 5 is used for draining the coffee liquid to the outside of the installation cavity for containing and receiving, and a user can use a cup to place below the drainage piece 5 for containing and receiving coffee.

In some embodiments, as shown in fig. 3, the supporting container 1 is further provided with a filtering member 6 at the first passage 12, so that the brewed coffee liquid in the supporting container 1 is filtered by the filtering member 6 and then introduced into the accommodating cavity 3 through the first passage 12, thereby effectively filtering out impurities and improving the quality of the coffee liquid.

Example two

The main technical features of the present embodiment are substantially the same as those of the first embodiment, and the main differences from the first embodiment are as follows:

as shown in fig. 1, 2, 4, 7 to 10, the air pressure adjusting apparatus 100 of the present embodiment further includes a pressure relief member 4;

a pressure relief piece 4 is arranged between the bearing container 1 and the cup body 21, the pressure relief piece 4 is provided with a discharge hole 41, and the brewing cavity 11 is communicated with the accommodating cavity 3 through the discharge hole 41. As can be understood, the brewed coffee is decompressed through the discharge hole 41 and enters the accommodating cavity 3, and impacts the inner wall of the accommodating cavity 3 to form a plurality of fine flows which are mixed with air to form coffee; specifically, this pressure release 4 sets up in the bottom that bears container 1, and the bottom that bears container 1 is provided with foretell first passageway 12, and pressure release 4 sets up in first passageway 12, and the coffee liquid that the brew was good gets into and holds cavity 3 after passing through this discharge hole 41 pressure release that bears container 1 bottom to the diapire that the cavity 3 was held in the impact.

It will be appreciated that the working principle of the air pressure regulating device 100 for the coffee making process is substantially as follows: coffee cakes and clean water are added into a brewing cavity 11 in the bearing container 1, coffee liquid is formed by the coffee cakes under the extraction and the brewing of the clean water, then the brewed coffee liquid is introduced into the accommodating cavity 3 through a discharge hole 41 of the pressure release piece 4 and impacts the inner wall of the accommodating cavity 3 to form a plurality of strands of thin flows and then is mixed with air to form gas-liquid mixed coffee liquid, then the coffee liquid is contained and taken by a cup placed below the cup body 21, the coffee liquid contained in the cup is formed into gas-liquid mixed liquid and grease coalescence on the top surface of the cup liquid, and the coffee liquid is piled up to a certain height.

In conclusion, the air pressure adjusting device 100 extracts and brews the coffee liquid in the brewing cavity 11 of the carrying container 1, and mixes the coffee liquid into the containing cavity 3 formed by matching the carrying container 1 and the cup body 21 through the discharge hole 41 of the pressure releasing member 4 to form a mixed coffee liquid, wherein the brewed coffee liquid enters the containing cavity 3 after being released by the pressure through the discharge hole 41 and impacts the inner wall of the containing cavity 3, so that a plurality of fine flows are formed after rebounding of the coffee liquid and are mixed with air to form a fully mixed coffee liquid, thereby effectively improving the aroma and taste of the coffee.

In some embodiments, the pressure relief element 4 is made of an impact-resistant material, so as to avoid wear and tear under the impact of the coffee liquid for a long time, which affects the service life. In the embodiment, the pressure relief piece 4 is made of stainless steel; of course, in other embodiments, the material of the pressure relief element 4 may also be other impact-resistant materials, and is not limited herein.

The present invention also provides a coffee maker 1000, as shown in fig. 1 and 2, the coffee maker 1000 including a main body 200, a water tank 300, and the air pressure adjusting device 100 as above; the water tank 300 and the air pressure adjusting device 100 are both disposed on the main body 200; the main body 200 is provided with a control switch, and the water tank 300 is controlled to be communicated with the carrying container 1 through the control switch. It will be appreciated that the water from the water tank 300 is supplied to the brewing chamber 11 in the carrier 1 for extraction and brewing with the coffee cake. It should be noted that the main body 200 is further provided with conventional elements such as a power supply and a key for controlling the coffee maker 1000 to normally operate, which will not be described in detail herein.

Therefore, the coffee machine 1000 extracts and brews coffee liquid in the bearing container 1, and leads the coffee liquid into the containing cavity 3 formed by matching the bearing container 1 and the cup body 21 through the first channel 12 and the air through the second channel 22 of the cup body 21 to mix gas and liquid, wherein the containing cavity 3 is formed by sealing and matching the cup body 21 and the bearing container 1, so that the contact surface of the cup body 21 and the bearing container 1 forms a sealing surface structure, which effectively prevents the external air from leading into the containing cavity 3 through the contact position between the cup body 21 and the bearing container 1 to influence the air inlet amount, and the air inlet amount of the second channel 22 can be controlled by separately arranging the second channel 22 at the cup body 21 for air input, so as to adjust the air inlet amount into the containing cavity 3 according to the use or brewage requirements, therefore, the mixing amount of the brewed coffee liquid and the air is controlled, the air pressure is regulated and controlled, the coffee liquid containing the preset air pressure is prepared, the coffee liquid can flow and be discharged quickly, the effect of regulating the quality of the coffee is achieved, and the fragrance, the taste and the use experience of consumers of the coffee are effectively improved.

In some embodiments, the main body 200 is provided with a bearing platform 210, the bearing platform 210 is used for placing a cup for containing coffee liquid, wherein the bearing platform 210 is arranged corresponding to the drainage member 5, so that after the cup is placed on the bearing platform 210, the coffee liquid is drained by the drainage member 5 and then accurately flows into the cup.

The invention also provides a coffee liquid preparation method, which is based on the air pressure adjusting device 100;

step a, extracting coffee raw materials with water, and then introducing the coffee raw materials into a bearing container 1 for mixing to obtain a coffee solution;

b, the coffee solution flows into the accommodating cavity 3 through the first channel 12, air is introduced into the accommodating cavity 3 through the second channel 22, the first channel 12 and the second channel 22 are matched to adjust the mixing amount of the air and the coffee solution to obtain the coffee solution, the air pressure in the accommodating cavity 3 is adjusted, and the flow rate of the coffee solution is adjusted.

In conclusion, the coffee liquid preparation method extracts and brews the coffee liquid in the bearing container 1, and leads the coffee liquid into the containing cavity 3 formed by matching the bearing container 1 and the cup body 21 through the first channel 12 and the air through the second channel 22 of the cup body 21 to mix gas and liquid, wherein the containing cavity 3 is formed by sealing and matching the cup body 21 and the bearing container 1, so that the contact surface of the cup body 21 and the bearing container 1 forms a sealing surface structure, thereby effectively avoiding the influence of the air inlet amount caused by the fact that the external air is led into the containing cavity 3 through the contact position between the cup body 21 and the bearing container 1, and controlling the air inlet amount of the second channel 22 by separately arranging the second channel 22 at the cup body 21 for air input, so as to adjust the air inlet amount of the containing cavity 3 according to the use or brewage requirements, therefore, the mixing amount of the brewed coffee liquid and the air is controlled, the air pressure is regulated and controlled, the coffee liquid containing the preset air pressure is prepared, the coffee liquid can flow and be discharged quickly, the effect of regulating the quality of the coffee is achieved, and the fragrance, the taste and the use experience of consumers of the coffee are effectively improved.

When the drawing description is quoted, the new characteristics are explained; in order to avoid that repeated reference to the drawings results in an insufficiently concise description, the drawings are not referred to one by one in the case of clear description of the already described features.

The above embodiments are provided to illustrate, reproduce and deduce the technical solutions of the present invention, and to fully describe the technical solutions, the objects and the effects of the present invention, so as to make the public more thoroughly and comprehensively understand the disclosure of the present invention, and not to limit the protection scope of the present invention.

The above examples are not intended to be exhaustive of the invention and there may be many other embodiments not listed. Any alterations and modifications without departing from the spirit of the invention are within the scope of the invention.

Claims (10)

1. The air pressure adjusting device is characterized by comprising a bearing container and a cup separating assembly;

the carrying container is provided with a first channel; the cup separating assembly comprises a cup separating body, the cup separating body and the bearing container are arranged in a sealing mode and matched with each other to form a containing cavity, and the outlet end of the first channel is communicated with the containing cavity; the cup body is also provided with a second channel communicated with the containing cavity.

2. The air pressure regulating device of claim 1, wherein the inlet end of the second passage is externally disposed to the cup body, and the outlet end of the second passage is in communication with the receiving cavity.

3. The air pressure regulating device of claim 2, wherein the second passage extends along an end of the dispensing cup body distal from the carrying container to an end proximal to the carrying container to communicate with the receiving cavity.

4. The air pressure regulating device of claim 3, wherein the outlet end of the first passage is opposite and offset from the outlet end of the second passage.

5. The air pressure regulating device as claimed in claim 1, wherein the upper surface of the open end of the cup body is upwardly protruded to form a step, the lower surface of the container is upwardly recessed to form a ring of rim, and the cup body is inserted into the rim through the step to be sealed with the container.

6. The air pressure regulating device of claim 2, wherein the dispensing cup assembly further comprises a regulating member; the regulating part including adjust the body and with adjust the body and rotate the adjusting valve who is connected, adjust the body set up in the entry end of second passageway, just adjust the body be provided with at least one with the air inlet duct of second passageway entry end intercommunication, adjusting valve is used for adjusting the switching of air inlet duct is in order to adjust the atmospheric pressure height of holding the during operation of cavity internal work.

7. The air pressure regulating device as claimed in claim 1, wherein a relief member is provided at the first passage, the relief member having a relief hole provided coaxially with a central axis of the receiving cavity.

8. The air pressure regulating device of claim 1, wherein the carrying container comprises a housing, a lid member and a coffee cake container; the lid closes the piece lid and fits form the installation cavity on the casing, the coffee cake container with divide the cup body to set up in the installation cavity along installation cavity depth direction, just the coffee cake container with the lid cooperates and forms the brew chamber, divide the cup body with the cooperation of coffee cake container forms hold the cavity.

9. Coffee machine, characterized in that it comprises a body, a water tank and an air pressure regulating device according to any one of claims 1 to 8; the water tank and the air pressure adjusting device are both arranged on the main body; the main body is provided with a control switch, and the water tank is controlled by the control switch to be communicated with the bearing container.

10. Coffee liquid preparation method, characterized in that it is based on a gas pressure regulating device according to any one of claims 1 to 8;

extracting coffee raw materials with water, and introducing the coffee raw materials into the bearing container to obtain a coffee solution;

the coffee solution flows into the accommodating cavity through the first channel, air is introduced into the accommodating cavity through the second channel, the first channel and the second channel are matched to adjust the mixing amount of the air and the coffee solution to obtain the coffee solution, the air pressure in the accommodating cavity is adjusted, and the flow rate of the coffee solution is adjusted.

Images