Trigger Safety Lock Assembly for Fluid Discharge Valves

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Solution Overview

Problem

Existing fluid discharge valves often suffer from accidental releases due to lack of reliable safety locks, leading to excessive strain and wear on components, reducing durability and posing risks to users and the environment, especially when used with toxic substances.

Innovation Solution

A fluid discharge valve design featuring a safety lock system with a linearly mobile safety lock and open lock mechanism that prevents accidental activation of the trigger, allowing for uninterrupted liquid flow without constant trigger lever pressure and reducing component stress.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a safety lock mechanism is added to prevent accidental release, then safety against accidental release is improved, but device complexity increases

Engineering Contradiction:

Improvesafety against accidental releaseVSAvoiddevice complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The safety lock mechanism is integrated into the trigger assembly by combining the safety lock component with the trigger lever structure. The safety lock and trigger share common mounting elements and spatial arrangement, merging two functions into a unified assembly that prevents accidental release while maintaining operational simplicity.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

A safety lock component acts as an intermediary element between the trigger lever and the valve mechanism. This intermediary component must be deliberately manipulated to activate the trigger, providing an additional layer of safety without requiring a completely separate control system.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If a safety lock blocks the trigger activation, then safety against accidental release is improved, but ease of operation deteriorates

Engineering Contradiction:

Improvesafety against accidental releaseVSAvoidease of operation

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The safety lock mechanism is designed to be engaged or disengaged as a preliminary action before trigger activation. The user must first manipulate the safety lock component to its operational position, which then enables smooth and easy trigger activation. This preliminary step ensures intentional use while maintaining ease of operation once activated.

Inventive Principle:

Principle #10Preliminary action

3Ease of operation

If the trigger is forced to activate despite safety lock, then ease of operation is maintained, but component durability deteriorates

Engineering Contradiction:

Improveease of operationVSAvoidcomponent durability

Core Design Contradiction:

Ease of operationVSDuration of action of stationary object

Solution Approach 1:

The safety lock mechanism provides preliminary anti-action by physically blocking trigger activation unless the safety lock is properly engaged. This preventive measure stops forced activation before it can occur, protecting components from excessive strain and wear while maintaining ease of operation under normal conditions.

Inventive Principle:

Principle #9Preliminary anti-action

Data Source

PatentEP3714990B1Valve device

Publication Date: 2023.03.15 GUARANY IND E COMERCIO LTDA

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Figure 3

AI summary

The present model discloses a fluid discharge valve endowed with a safety lock against accidental release, providing an increase in the durability of the components engaged in conjunction with the movement of activating the valve trigger.