Valve core, valve device and water outlet system

By designing a valve core with a rotating component and a pressure balancing component, the problems of hot and cold water mixing and fluctuating water temperature are solved, realizing independent control of hot and cold water and automatic adjustment of water temperature, ensuring the stability of water flow and temperature.

WO2026114320A1PCT designated stage Publication Date: 2026-06-04FUJIAN DOMOO SANITARY WARE TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
FUJIAN DOMOO SANITARY WARE TECHNOLOGY CO LTD
Filing Date
2025-11-27
Publication Date
2026-06-04

AI Technical Summary

Technical Problem

When using a hot and cold water mixing system, the existing valve core has problems such as hot and cold water mixing and sudden changes in water temperature, especially when water is used at the same time, the water temperature fluctuates greatly due to sudden changes in water pressure.

Method used

A valve core is designed, including a housing mechanism and a rotating mechanism, a rotating component and a pressure balancing component. By rotating the rotating component and adjusting the pressure balancing component, independent control of hot and cold water and automatic adjustment of water temperature can be achieved, thus preventing hot and cold water from mixing.

Benefits of technology

It achieves stable water flow at different water temperatures, avoids crosstalk between hot and cold water, ensures constant water temperature, and improves the user experience.

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Abstract

A valve core, a valve device and a water outlet system. The valve core comprises a housing mechanism (11) provided with a first water inlet flow channel (100), a second water inlet flow channel (200), a first water outlet flow channel (301) and a second water outlet flow channel (302), and a rotating mechanism (12) comprising a rotating assembly (121) and a pressure balancing assembly (122). The rotating assembly (121) is provided with a mounting space (400), and the pressure balancing assembly (122) is mounted in the mounting space (400). The rotating assembly (121) is provided with a first port (401) and a second port (402) which are communicated with the mounting space (400). During rotation of the rotating assembly (121) with respect to the housing mechanism (11), the rotating assembly (121) can be simultaneously communicated with or disconnected from the first water inlet flow channel (100) and the second water inlet flow channel (200), and can also enable the first port (401) to be communicated with or disconnected from the first water outlet flow channel (301) and enable the second port (402) to be communicated with or disconnected from the second water outlet flow channel (302), so as to achieve water temperature regulation.
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