Upper Valve Part Radial Locking Mechanism

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Solution Overview

Problem

Existing upper valve parts for fittings are complex in design and production due to the requirement of a handle that can be moved axially and the mechanism for shutting off the valve, leading to increased design and production efforts.

Innovation Solution

A radially acting locking device is introduced to limit the valve to only two positions, 'completely open' and 'completely closed', simplifying the design and reducing production costs by eliminating the need for complex axial movement mechanisms.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a handle that can be moved axially and a shut-off mechanism are provided, then the valve can be activated and deactivated, but the design complexity and production effort increase

Engineering Contradiction:

Improvevalve activation reliabilityVSAvoidupper valve part complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The invention extracts and eliminates the complex axial movement mechanism and separate shut-off mechanism from the upper valve part. By removing these unnecessary components and retaining only the essential rotational handle operation, the design achieves valve activation functionality with significantly reduced complexity and production effort.

Inventive Principle:

Principle #2Taking out (Extraction)

2Ease of operation

If a complex axial movement mechanism is used for handle operation, then the valve can be controlled, but the production costs and assembly effort increase

Engineering Contradiction:

Improvevalve control capabilityVSAvoidproduction simplicity

Core Design Contradiction:

Ease of operationVSEase of manufacture

Solution Approach 1:

Instead of using a complex axial movement mechanism to achieve valve control, the invention inverts the approach by using simple rotational movement of the handle directly connected to the spindle. This rotational operation naturally provides both opening and closing positions, eliminating the need for separate axial movement mechanisms and significantly simplifying manufacturing and assembly processes.

Inventive Principle:

Principle #13The other way round (Inversion)

Data Source

PatentUS7651067B2Upper valve part for fittings

Publication Date: 2010.01.26 FLUHS DREHTECHN GMBH

AI summary

An upper valve part for fittings has a head piece through which a spindle passes, means for shut-off, and a seal that comes to rest on the fitting. A radially acting locking device is provided.