Coffee maker pressure regulating device, coffee maker extraction system and coffee maker pressure regulating method

WO2026036650A1PCT designated stage Publication Date: 2026-02-19MAXI (BEIJING) INT BRAND MANAGEMENT CO LTD
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Patent Information

Application Number
PCT/CN2025/071888
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-08-12
Filing Date
2025-01-10
Publication Date
2026-02-19

AI Technical Summary

Technical Problem

Existing coffee machine pressure regulating valves can only adjust one type of pressure, which cannot meet different extraction pressure requirements, resulting in poor cost performance and unstable extraction.

Method used

The coffee machine pressure regulating device includes a drive unit, a gear transmission assembly, a pressure regulating valve, a detection assembly, and a pressure sensor or weight sensor. The gear transmission assembly synchronously drives the pressure regulating piston and the detection piston to achieve the adjustment of various extraction pressures, and the pressure sensor or weight sensor detects and adjusts the pressure relief pressure.

Benefits of technology

It enables precise adjustment of various extraction pressures, enhances the user experience, can extract coffee with different flavors, and can directly display the pressure release pressure, making it more accurate and intuitive.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN2025071888_19022026_PF_FP_ABST
    Figure CN2025071888_19022026_PF_FP_ABST
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Abstract

The present application relates to the technical field of coffee makers, and in particular to a coffee maker pressure regulating device, a coffee maker extraction system and a coffee maker pressure regulating method. The coffee maker pressure regulating device comprises a driving device, a gear drive assembly, a pressure regulating valve, a measuring assembly, and a pressure sensor or weight sensor; the pressure regulating valve comprises a pressure regulating piston rod and a pressure regulating piston, the pressure regulating piston rod rotatably being in threaded connection to the pressure regulating piston; the measuring assembly comprises a measuring piston rod, a measuring piston, a measuring spring, a force applying member and a mounting seat. The driving device is in driving connection to the pressure regulating piston rod and the measuring piston rod by means of the gear drive assembly, and drives the pressure regulating piston rod and the measuring piston rod to rotate synchronously, such that the two pistons move close to or away from each other. The pressure sensor or weight sensor is used for measuring a relief pressure. The pressure regulating device can effectively control a pipe pressure, achieve a variety of different extraction pressures to meet different extraction requirements, and directly display the relief pressure more accurately and visually.
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Citation Information

Patent Citations

  • Brewing unit of coffee machine

    CN102028408A

  • Method for preparing Italian espresso coffee by adopting energy-accumulating coffee machine

    CN106974551A

  • Full-automatic coffee machine

    CN118303756A

  • Coffee machine pressure regulating valve

    CN205207808U

  • Automatic powder pressing waterway system

    CN220876550U