Extraction device

Abstract

The invention provides an extraction device capable of easily and accurately changing an amount of an obtained liquid extract and performing an extraction of liquid in a desired extraction time. Water supplied to a water storing tank 3 in the extraction device is fed into a hot water storing tank 5 through a pipe 51. The water fed into the hot water storing tank 5 is heated by a heater 50. A temperature of hot water positioned at the upper part in the hot water storing tank 5 is detected by a temperature sensor 54. Then, when a detected temperature of the temperature sensor 54 reaches a predetermined temperature, a gear pump 6 is driven to cause the hot water in the hot water storing tank 5 to be fed into the gear pump 6 through a flowing-out passage 53, a pipe 53 and a three- way solenoid valve 60. Further, the hot water is supplied to an extraction cup 100 through a pipe 63 and a feeding needle 65. An amount of hot water supplied to the extraction cup 100 is controlled by controlling a driving voltage of the gear pump 6.

Description

technical field [0001] The present invention relates to an extraction device, and more particularly to an extraction device for obtaining an extraction liquid by supplying hot water to a container including a powder raw material and a filter. Background technique [0002] In the past, there have been devices such as automatic vending machines for coffee beverages and the like by automatically supplying hot water to the container 600 including the powder raw material and the filter to obtain the extracted liquid. [0003] exist Figure 26 In the shown device, the water supplied from the water storage container 503 is sent to the hot water container 505, in which the water is heated by the heating element 550 to become hot water and sent into a main cup having a predetermined volume 507 in. Subsequently, the hot water in the main cup 507 is sent into the container 600 including the powder raw material and the filter by the air sent by the pump 506 under the condition that the...

AI Technical Summary

Problems solved by technology

[0006] However, it is annoying to have to replace the main cup 507 in order to change its volume

Moreover, it is troublesome to change the length of the suction pipe 510

Therefore, for example, even if the amount of the extracted liquid can be changed in the above-mentioned manner, the extraction time is uncertain and the taste of the provided extracted liquid cannot be kept stable

Furthermore, in conventional extraction units, it is not possible to serve cold and hot beverages with one unit

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