Coffee machine integrating cold brewing, hot brewing and drip brewing

Abstract

A coffee machine integrating cold brewing, hot brewing and drip brewing, comprising: a main unit and a cup assembly, wherein the main unit comprises a housing (11), a heating assembly and an air extraction and blowing device, and the cup assembly comprises an extraction cup (21) and a coffee pot (22). A water tank (12) is arranged in the housing (11), the water tank (12) is connected to a first tube (31) via the heating assembly, and a water outlet end of the first tube (31) is in communication with the top end of the extraction cup (21); a separation layer is arranged in the middle of the extraction cup (21), and the bottom of the extraction cup (21) is provided with a liquid outlet (210) and fitted with a water stop assembly; the coffee pot (22) is mounted below the extraction cup (21), and the top end of the coffee pot (22) pushes open the water stop assembly and is in communication with the extraction cup (21) via a straight through tube; and the air extraction and blowing device is in communication with the upper portion of the extraction cup (21), so as to extract air from or blow air into the extraction cup (21). Thus, both drip coffee and cold brew coffee can be made, and hot brew coffee can also be made by means of more complete drip brewing.

Description

A coffee machine that combines cold brew, hot brew, and drip coffee. Technical Field

[0001] This utility model relates to the field of coffee machine technology, and more specifically to a coffee machine that combines cold brew, hot brew and drip brewing. Background Technology

[0002] Currently, common coffee machines on the market include drip coffee machines and hot / cold brew coffee machines. Drip coffee machines are used to make regular coffee. For example, a drip coffee machine disclosed in Chinese utility model patent CN 206534531U includes a heating device, a water inlet pipe, a water tank, a water outlet pipe, a spout, a spray nozzle, a coffee basket, a circuit control PCBA, a temperature sensor, and a coffee pot. Water in the water tank is heated by the heating device and then sprayed onto coffee grounds in the coffee basket through the spray nozzle. After brewing, the coffee drips into the coffee pot below. Cold and hot brew coffee machines are mainly used to make cold brew coffee. For example, Chinese utility model patent with authorization announcement number CN 220898463U discloses a coffee machine that can quickly make cold and hot brew coffee. This utility model uses a back-and-forth circulation to repeatedly pass water through the coffee powder box, thereby quickly extracting the coffee powder in the coffee powder box, which greatly reduces the time required for cold brew and allows you to get a cup of cold brew coffee in a shorter time. In addition, this utility model can also make hot brew coffee, combining the functions of fast cold and hot brew.

[0003] The two types of coffee machines mentioned above each have their own functions and features. If you want to have all of these functions, you would need to buy two coffee machines, which is not only expensive but also takes up storage space. Therefore, we offer a coffee machine that combines cold brew, hot brew, and drip brewing. Utility Model Content

[0004] This invention provides a coffee machine that combines cold brew, hot brew, and drip brewing, aiming to solve the above-mentioned problems of existing coffee machines.

[0005] The present invention adopts the following technical solution:

[0006] A coffee machine combining cold brew, hot brew, and drip brewing includes: a main unit and a cup assembly. The main unit includes a housing, a heating element, and an air extraction device. The cup assembly includes an extraction cup and a coffee pot. A water tank is provided inside the housing. The water tank is connected to a first pipe through the heating element. The outlet of the first pipe is connected to the top of the extraction cup. The extraction cup has a partition layer in the middle and a liquid outlet with a water-stopping component at the bottom. The coffee pot is installed below the extraction cup, and its top lifts the water-stopping component and is connected to the extraction cup through a straight pipe. The air extraction device is connected to the upper part of the extraction cup to extract or blow air into the extraction cup.

[0007] In a preferred embodiment, the above-mentioned air extraction device includes an air pump, a second pipeline, a third pipeline, and a pipeline switching mechanism. The air pump's inlet and outlet are respectively connected to the second pipeline and the third pipeline through the pipeline switching mechanism.

[0008] In a preferred embodiment, the upper side and the bottom side of the housing form an upper housing and a base, respectively, the top of the extraction cup is detachably and sealed to the bottom of the upper housing, and the coffee pot is placed on the base.

[0009] In a preferred embodiment, the outlet end of the first pipe is connected to a shower head, which is fixed to the bottom surface of the upper housing and communicates with the extraction cup; the ends of the second pipe and the third pipe are also respectively located on the bottom surface of the upper housing and communicate with the extraction cup.

[0010] In a preferred embodiment, the heating component is a heating tube, which is disposed inside the base. The inlet end of the heating tube is connected to the outlet of the water tank, and the outlet end of the heating tube is connected to the first pipeline. The first pipeline is also provided with a normally closed solenoid valve.

[0011] In a preferred embodiment, the base is further provided with a heating plate for heating the coffee pot.

[0012] As can be seen from the above description of this utility model, compared with the prior art, this utility model has the following advantages:

[0013] This invention relates to a coffee machine whose cup assembly includes an extraction cup and a coffee pot. The coffee pot is connected to the outlet of the extraction cup via a straight tube. A water tank is connected to a first pipe via a heating element, spraying heated water into the extraction cup. The brewed coffee drips through the straight tube into the coffee pot, completing the extraction process. The coffee machine also features an air extraction device connected to the upper part of the extraction cup to either draw or blow air into the cup. When air is drawn, liquid in the coffee pot enters the extraction cup through the straight tube to brew the coffee grounds. When air is blown, liquid in the upper part of the extraction cup further brews the coffee grounds, flowing through the straight tube into the coffee pot. This process is repeated to extract the coffee. Therefore, this invention enables both drip coffee extraction and cold extraction, as well as hot extraction for more thorough drip coffee extraction. Attached Figure Description

[0014] Figure 1 is a schematic diagram of the structure of this utility model.

[0015] Figure 2 is a cross-sectional view of this utility model.

[0016] Figure 3 is an exploded view of this utility model. Detailed Implementation

[0017] The specific embodiments of this utility model will now be described with reference to FIG1. ​​Many details are described below to provide a comprehensive understanding of this utility model; however, those skilled in the art can implement this utility model without these details. Well-known components, methods, and processes will not be described in detail below.

[0018] A coffee machine combining cold brew, hot brew, and drip brewing, as shown in Figure 1, includes a main unit and a cup assembly. The main unit includes a housing 11, a heating element, and a blower; the cup assembly includes an extraction cup 21 and a coffee pot 22.

[0019] Referring to Figures 1 to 3, the upper side and bottom side of the housing 11 form an upper housing 111 and a base 112, respectively. The top of the extraction cup 21 is detachably and sealed to the bottom of the upper housing 111. The extraction cup 21 has a dividing layer in the middle (preferably using a removable filter screen) that divides the extraction cup 21 into an upper and lower layer. The upper layer is used to hold coffee powder, and the lower layer is used to hold ice cubes during cold brewing and is empty during hot brewing. The coffee pot 22 is placed on the base 112. A water tank 12 is provided inside the housing 11, and the water tank 12 is connected to a first pipe 31 through the heating assembly. The water outlet of the first pipe 31 is connected to a shower head 311, which is fixed to the bottom surface of the upper housing 111 and communicates with the extraction cup 21.

[0020] Referring to Figures 2 and 3, the heating component is a heating tube 13, which is located inside the base 112. The inlet end of the heating tube 13 is connected to the outlet of the water tank 12, and the outlet end of the heating tube 13 is connected to the first pipeline 31. The first pipeline 31 is also equipped with a normally closed solenoid valve 312.

[0021] Referring to Figure 2, the bottom of the extraction cup 21 is provided with a liquid outlet 210 and a water-stopping component. The water-stopping component includes a water-stopping valve 211 and a spring 212. A water-stopping valve 211 is installed at the liquid outlet 210, and a spring 212 is provided between the water-stopping valve 211 and the liquid outlet 210. The coffee pot 22 is installed on the base 112 below the extraction cup 21. The top of the coffee pot 22 has a lid, and a straight tube communicating with the lid is provided inside the coffee pot. When the coffee pot is installed on the base, the lid lifts the water-stopping component, and the straight tube communicates with the extraction cup, extending to the lower part of the coffee pot.

[0022] Referring to Figures 2 and 3, the aforementioned air extraction / blowing device is connected to the upper part of the extraction cup 21 to extract or blow air into the extraction cup 21. The air extraction / blowing device includes a second pipe 32, a third pipe 33, an air pump 34, and a pipe switching mechanism. The inlet and outlet of the air pump 34 are connected to the second pipe 32 and the third pipe 33 respectively via the pipe switching mechanism. The ends of the second pipe 32 and the third pipe 33 are respectively located on the bottom surface of the upper housing 111 and communicate with the extraction cup 21. The pipe switching mechanism includes components such as a motor and a turntable. Its structure is not the focus of this utility model; for details, please refer to the air extraction / blowing device disclosed in Chinese Patent No. CN 219645540U. Specific details are not elaborated here.

[0023] Referring to Figure 2, the base 112 is also provided with a heating plate 113 to heat and keep the coffee pot 22 warm.

[0024] When used for drip coffee, the normally closed solenoid valve is energized and opened, the heating element heats the water and outputs it from the first pipe, which is then sprayed through the shower head into the extraction cup containing the brewing liquid. The brewed hot liquid flows into the coffee pot to make drip coffee.

[0025] When used to prepare cold brew coffee, ice is placed at the bottom of the extraction cup. The air extraction device works to remove air from the extraction cup, allowing liquid from the coffee pot to enter the extraction cup through the straight tube to brew the coffee. Then, through the pipeline switching mechanism, the air pump blows air, introducing external gas into the extraction cup, causing the liquid in the extraction cup to flow into the coffee pot. By repeating this process, the coffee can be fully cold-extracted.

[0026] By following the methods for drip coffee making and cold brew coffee preparation in sequence, the brewed material can be more fully extracted using a traditional drip coffee maker.

[0027] The above are merely specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial modifications made to this utility model using this concept shall be considered as an infringement of the protection scope of this utility model.

Claims

1. A coffee machine combining cold brew, hot brew, and drip brewing, characterized in that, include: The main unit includes a housing, a heating element, and an air extraction device. The cup assembly includes an extraction cup and a coffee pot. A water tank is located inside the housing. The water tank is connected to a first pipe via the heating element. The outlet of the first pipe is connected to the top of the extraction cup. The extraction cup has a partition layer in the middle and a liquid outlet with a water-stopping element at the bottom. The coffee pot is installed below the extraction cup, and its top lifts the water-stopping element and is connected to the extraction cup via a straight pipe. The air extraction device is connected to the upper part of the extraction cup to extract or blow air into the extraction cup.

2. The coffee machine combining cold brew, hot brew, and drip as described in claim 1, characterized in that: The air pumping device includes an air pump, a second pipeline, a third pipeline, and a pipeline switching mechanism. The air pump's inlet and outlet are connected to the second pipeline and the third pipeline, respectively, through the pipeline switching mechanism.

3. A coffee machine combining cold brew, hot brew, and drip brewing as described in claim 2, characterized in that: The upper side and the bottom side of the housing form an upper housing and a base, respectively. The top of the extraction cup is detachably and sealed to the bottom of the upper housing, and the coffee pot is placed on the base.

4. A coffee machine combining cold brew, hot brew, and drip brewing as described in claim 3, characterized in that: The outlet of the first pipe is connected to a shower head, which is fixed to the bottom surface of the upper housing and communicates with the extraction cup; the ends of the second pipe and the third pipe are also respectively located on the bottom surface of the upper housing and communicate with the extraction cup.

5. A coffee machine combining cold brew, hot brew, and drip brewing as described in claim 3, characterized in that: The heating component is a heating tube, which is located inside the base. The inlet end of the heating tube is connected to the outlet of the water tank, and the outlet end of the heating tube is connected to the first pipeline. The first pipeline is also equipped with a normally closed solenoid valve.

6. A coffee machine combining cold brew, hot brew, and drip brewing as described in claim 3, characterized in that: The base also contains a heating plate for heating the coffee pot.

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