CN216566235U

CN216566235U - Double-stage water quantity coffee brewing device

Info

Publication number: CN216566235U
Application number: CN202121822550.3U
Authority: CN
Inventors: 卢克武
Original assignee: Wuxi Ruike Automation Technology Co ltd
Current assignee: Wuxi Ruike Automation Technology Co ltd
Priority date: 2021-08-05
Filing date: 2021-08-05
Publication date: 2022-05-20
Anticipated expiration: 2031-08-05

Abstract

The utility model relates to a coffee brewing device with double water volumes, which comprises a boiler, a pipeline and two sets of control structures, wherein the boiler is connected with one end of the pipeline, which is connected with the boiler, is provided with two parallel branches, and the two sets of control structures are respectively arranged on the two parallel branches and respectively control two water outlet flows to realize segmented extraction. By adopting the coffee brewing device with the double-section water flow, the hot water flow can be accurately controlled, the coffee aroma substances are extracted in advance through excessive hot water, the layering sense of the coffee aroma is improved by completely pre-soaking, and the problem that the coffee is bitter due to overlong extraction time is avoided.

Description

Double-stage water quantity coffee brewing device

Technical Field

The utility model relates to the field of coffee machine devices, in particular to a coffee brewing device with double water volumes.

Background

The semi-automatic coffee machine on the market at present only has single needle valve control water flow, avoids making the coffee liquid bitter aggravation that the time of infusing overlength leads to, and the velocity of flow of general single needle valve should not adjust to too little. In this case, at the initial stage of brewing coffee, the coffee aroma is not yet completely soaked, and the coffee aroma starts to be extracted by excessive hot water. Thus, the inherent aroma gradation of coffee cannot be fully embodied.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide the double-stage water quantity coffee brewing device which has the advantages of simple structure, less impurities and wider application range.

In order to achieve the above object, the present invention provides a dual stage water-volume coffee brewing apparatus comprising:

the coffee brewing device with the double-section water flow is mainly characterized by comprising a boiler, a pipeline and two sets of control structures, wherein the boiler is connected with one end of the pipeline, one end of the pipeline connected with the boiler is provided with two parallel branches, and the two sets of control structures are respectively arranged on the two parallel branches and respectively control two water outlet flows to realize sectional extraction.

Preferably, the two sets of control structures include a first set of control structure and a second set of control structure, the first set of control structure is opened and the second set of control structure is closed in the initial section of coffee extraction, the second set of control structure is opened and the first set of control structure is closed in the rear end of coffee extraction, the first solenoid valve and the first needle valve control the initial section of extraction, and the second solenoid valve and the second needle valve control the rear section of extraction.

Preferably, the first set of control structure include first solenoid valve and first needle valve, the second set of control structure include second solenoid valve and second needle valve, first solenoid valve link to each other with first needle valve, the second solenoid valve links to each other with the second needle valve.

Preferably, the first needle valve and the second needle valve are respectively provided with a measuring module, the measuring module of the first needle valve controls the small-flow water outlet flow, and the measuring module of the second needle valve controls the large-flow water outlet flow.

Preferably, the device further comprises a brewing handle arranged at the outlet of the metal pipeline.

By adopting the coffee brewing device with double water volumes, the hot water volume can be accurately controlled, the coffee aroma substances are extracted in advance through excessive hot water, the layering sense of the coffee aroma is improved by completely pre-soaking, and the problem that the coffee is bitter due to overlong extraction time is avoided.

Drawings

FIG. 1 is a schematic view of a prior art coffee brewing apparatus.

Fig. 2 is a schematic diagram of the construction of the dual stage water level coffee brewing apparatus of the present invention.

Reference numerals:

1 first solenoid valve

2 first needle valve

3 second solenoid valve

4 second needle valve

5 boiler

6 brewing handle

7 coffee powder

8 coffee liquid outlet

Detailed Description

In order to more clearly describe the technical contents of the present invention, the following further description is given in conjunction with specific embodiments.

Referring to fig. 2, the coffee brewing apparatus with two water volumes of the present invention includes a boiler, a pipeline, and two sets of control structures, wherein the boiler is connected to one end of the pipeline, the end of the pipeline connected to the boiler has two parallel branches, and the two sets of control structures are respectively installed on the two parallel branches to respectively control two water flows to realize the segmented extraction.

As a preferred embodiment of the present invention, the two sets of control structures include a first set of control structure and a second set of control structure, the first set of control structure is opened and the second set of control structure is closed in the initial stage of coffee extraction, the second set of control structure is opened and the first set of control structure is closed in the rear end of coffee extraction, the first solenoid valve and the first needle valve control the initial stage of extraction, and the second solenoid valve and the second needle valve control the rear stage of extraction.

As a preferred embodiment of the present invention, the first set of control structure includes a first solenoid valve and a first needle valve, the second set of control structure includes a second solenoid valve and a second needle valve, the first solenoid valve is connected to the first needle valve, and the second solenoid valve is connected to the second needle valve.

As a preferred embodiment of the present invention, the first needle valve and the second needle valve respectively have a measurement module, the measurement module of the first needle valve controls the outlet flow rate of the small flow rate, and the measurement module of the second needle valve controls the outlet flow rate of the large flow rate.

As a preferred embodiment of the utility model, the device also comprises a brewing handle which is arranged at the outlet of the metal pipeline.

In the specific implementation mode of the utility model, only a single needle valve is used for controlling the water outlet flow of the semi-automatic coffee machine on the market at present, and the flow speed of the single needle valve is not suitable to be adjusted excessively small in order to avoid aggravating the bitterness of the coffee liquid caused by overlong brewing time. In this case, at the initial stage of brewing coffee, the coffee aroma is not yet completely soaked, and the coffee aroma starts to be extracted by excessive hot water. Thus, the inherent aroma gradation of coffee is not fully realized.

If the pre-soaking effect is to be improved, the flow of the single needle valve is only adjusted to be extremely small. The requirements of pre-soaking can be met.

Two sets of electromagnetic valves and needle valves are used for accurately realizing two water outlet flows. Segmented extraction can be realized. In the initial stage of extraction, the electromagnetic valve 2 is kept closed, the electromagnetic valve 1 is opened, and the needle valve 1 with extremely small flow and the large pressure of the water pump are utilized to realize the complete pre-soaking of the high-density coffee powder. At this time, the coffee powder is just completely soaked by the accurately controlled hot water amount, and the coffee aroma substances are not extracted out in advance by excessive hot water. The layering of the coffee aroma can be improved only by complete pre-soaking.

After the initial period is finished, the electromagnetic valve 1 is closed, the electromagnetic valve 2 is opened, the large-flow needle valve 2 is used, the aroma substances of the coffee are quickly extracted, and the defect that the coffee is bitter due to overlong extraction time is avoided.

But the extraction time of the later period after the pre-soaking is finished is greatly prolonged, and the extracted coffee liquid is bitter and astringent.

In this specification, the utility model has been described with reference to specific embodiments thereof. It will, however, be evident that various modifications and changes may be made thereto without departing from the broader spirit and scope of the utility model. The specification and drawings are, accordingly, to be regarded in an illustrative rather than a restrictive sense.

Claims

1. The coffee brewing device with the double-section water flow is characterized by comprising a boiler, a pipeline and two sets of control structures, wherein the boiler is connected with one end of the pipeline, which is connected with the boiler, is provided with two parallel branches, and the two sets of control structures are respectively arranged on the two parallel branches and respectively control two water outlet flows to realize sectional extraction.

2. The dual stage volume coffee brewing apparatus as claimed in claim 1, wherein the two sets of control structures comprise a first set of control structures and a second set of control structures, wherein the first set of control structures is opened and the second set of control structures is closed during the initial stage of coffee extraction, and the second set of control structures is opened and the first set of control structures is closed at the rear end of coffee extraction.

3. The dual stage volume coffee brewing apparatus as claimed in claim 2, wherein the first set of control structure comprises a first solenoid valve and a first needle valve, the second set of control structure comprises a second solenoid valve and a second needle valve, the first solenoid valve is connected to the first needle valve, the second solenoid valve is connected to the second needle valve, the first solenoid valve and the first needle valve control the extraction initial stage, and the second solenoid valve and the second needle valve control the extraction post stage.

4. The dual stage volume coffee brewing apparatus of claim 3, wherein the first needle valve and the second needle valve each have a metering module, the metering module of the first needle valve controlling a small volume of outlet water flow, and the metering module of the second needle valve controlling a large volume of outlet water flow.

5. The dual stage volume coffee brewing apparatus as recited in claim 1, further comprising a brewing handle mounted at the exit of the metal tube.