Water Dividing Valve Structure for High-Flow Ceramic Protection

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Solution Overview

Problem

Existing water dividing faucets face issues such as damage from external pressure and collision, limited water flow rate, complex and costly valve shafts, and cumbersome installation, which affect service life and performance, especially in applications requiring high water flow rates.

Innovation Solution

A water dividing valve and faucet design featuring a water dividing body, operation member, movable rod, and transmission member with sliding rails and balls, allowing for circumferential and axial movement conversion, reducing friction and enabling easy assembly and disassembly, while maintaining a simple structure.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If the valve rod is directly connected to the movable ceramic piece, then the structure is simple, but the ceramic pieces are damaged due to external water pressure and collision force

Engineering Contradiction:
Improvestructure simplicityVSAvoidceramic piece durability
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The patent introduces a movable rod as an intermediary component between the valve rod and the movable ceramic piece. This movable rod absorbs external water pressure and collision forces, preventing direct transmission to the ceramic pieces. The movable rod includes a plug that can move to close the water inlet cavity, providing a buffer mechanism that protects the ceramic pieces from damage while maintaining operational simplicity.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Device complexity

If the valve rod is directly connected to the movable ceramic piece, then the structure is simple, but the water outlet space is limited and water flow rate is restricted

Engineering Contradiction:
Improvestructure simplicityVSAvoidwater flow rate
Core Design Contradiction:
Device complexityVSProductivity

Solution Approach 1:

The patent segments the valve structure into distinct functional components: a valve rod for operation, a movable rod with plug for water flow control, and separate movable and fixed ceramic pieces for sealing. This segmentation allows the movable rod and plug to create additional water outlet space by moving independently, thereby increasing water flow rate while keeping the overall structure relatively simple through modular design.

Inventive Principle:
Principle #1Segmentation

3Reliability

If a traditional valve shaft with ceramic pieces is used, then the valve can control water flow, but the valve shaft is complicated and costly with cumbersome installation

Engineering Contradiction:
Improvewater flow controlVSAvoidvalve shaft complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts the ceramic pieces from a complex integrated valve shaft structure and positions them separately - a fixed ceramic piece on the water outlet end and a movable ceramic piece on the movable rod. This extraction simplifies the valve shaft to basic operational components (valve rod and movable rod) while maintaining water flow control functionality through the interaction between the movable plug and ceramic pieces.

Inventive Principle:
Principle #2Taking out (Extraction)

4Ease of operation

If the valve rod rotates to drive the movable ceramic piece, then water can flow from different passages, but the impact between valve rod and ceramic pieces damages the ceramic pieces

Engineering Contradiction:
Improvewater passage switchingVSAvoidceramic piece service life
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent uses the movable rod with plug as an intermediary between the rotating valve rod and the movable ceramic piece. When the valve rod rotates to switch water passages, the movable rod moves axially to position the plug accordingly. This intermediary mechanism converts rotational motion to axial movement, preventing direct impact between the valve rod and ceramic pieces while maintaining the ability to direct water flow from different passages.

Inventive Principle:
Principle #24Intermediary (Mediator)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The solution provides a reliable, long-lasting, and easy-to-assemble water dividing valve and faucet with reduced friction, improved user comfort, and flexible operation, ensuring smooth water flow and reduced maintenance costs.

Implementation Method 1

The transmission member comprises at least one ball, and an outer periphery of the movable rod comprises at least one sliding rail, and each of the at least one ball is disposed in an inner wall of the operation member and slidably cooperates to a corresponding one of the at least one slide rail

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentEP3812630B1Water deviding valve and water dividing faucet
Publication Date: 2023.04.12 FUJIAN DOMOO SANITARY WARE TECHNOLOGY CO LTD
  • EP3812630B1 patent drawingFigure 1
  • EP3812630B1 patent drawingFigure 2
  • EP3812630B1 patent drawingFigure 3

AI summary

The present disclosure discloses a water dividing valve and a water dividing faucet. The water dividing valve water dividing valve comprises a water dividing body (10) and an operation member (20). The water dividing body (10) comprises a water inlet cavity (11). The water dividing valve further comprises a movable rod (30) and a transmission member (40). The movable rod (30) is disposed in the water inlet cavity (11), and the movable rod (30) comprises a plug (31) and a water passage (32). The water passage (32) is communicated with the water inlet cavity (11). The operation member (20) surrounds an outer side of the water dividing body (10) and is configured to be driven to rotate. The transmission member (40) is disposed between the operation member (20) and the movable rod (30) to convert a circumferential movement of the operation member (20) to a circumferential movement and an axial movement of the movable rod (30) to enable the plug to close or open the water inlet cavity 811). The present disclosure has few parts, simple structure, long service life, and convenient assembly-and-disassembly.