Pumping Device Seal Cap Double Pressure Relief

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Solution Overview

Problem

Conventional pumping devices fail to effectively release excessive air pressure in a barrel, leading to potential deformation or breakage due to inadequate air drainage mechanisms, and often lack a double pressure relief function, which compromises safety and efficiency.

Innovation Solution

A pumping device featuring a seal cap unit with an air relief member and a regulating member that includes an air relief hole and draining holes, allowing for controlled air flow and pressure regulation, enabling both fluid intake and compression while providing a double pressure relief function to prevent barrel damage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a conventional pressure relief member is used to release air pressure, then some pressure relief is achieved, but the air pressure cannot be effectively drained when the pressure relief member fails or malfunctions, leading to barrel deformation or breakage

Engineering Contradiction:

Improvepressure relief reliabilityVSAvoidbarrel deformation or breakage

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The pressure relief function is segmented into two independent pathways: a primary pressure relief member and a secondary air drainage mechanism. The air outlet hole with peripheral through holes provides an alternative drainage path that operates independently of the pressure relief member, ensuring that if one pathway fails, the other can still function to prevent barrel deformation or breakage.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The air outlet hole and through holes are pre-configured as a backup pressure relief pathway before the pressure relief member can fail. This beforehand cushioning ensures that excessive air pressure can be drained through the air outlet hole and through holes even when the primary pressure relief member malfunctions, preventing catastrophic barrel failure.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

2Ease of operation

If air must bypass through micro-holes or exhaustion space to be drained outward, then the air drainage path is established, but the air exhaust effect is decreased

Engineering Contradiction:

Improveair drainage capabilityVSAvoidair exhaust effect

Core Design Contradiction:

Ease of operationVSProductivity

Solution Approach 1:

The air outlet hole is designed with through holes specifically positioned at its periphery to create a localized high-efficiency drainage region. This local quality enhancement allows air to be directly exhausted through the air outlet hole and through holes without requiring bypass through restrictive micro-holes or exhaustion spaces, significantly improving the air exhaust effect.

Inventive Principle:

Principle #3Local quality

3Device complexity

If a single pressure relief member is used, then the device structure is simple, but the device cannot provide a double pressure relief function to release excessive air pressure gradually

Engineering Contradiction:

Improvepressure relief mechanism structureVSAvoiddouble pressure relief function

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The air outlet hole structure is designed to serve multiple functions: it acts as a primary air drainage pathway, provides a backup pressure relief mechanism, and enables gradual pressure release through its peripheral through holes. This multi-functionality allows the device to achieve a double pressure relief function without significantly increasing structural complexity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

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 device effectively regulates air pressure to ensure safe operation by allowing controlled air drainage, preventing barrel deformation and breakage, and enabling efficient fluid transfer between containers.

Implementation Method 1

the tapered projection of the regulating member closely presses the tapered groove of the air relief member

Methodology Applied

Scientific EffectFriction: Friction

Implementation Method 2

The air relief member has an interior provided with a guide hole. The guide hole of the air relief member has a periphery provided with a plurality of apertures. The regulating member of the seal cap unit has a periphery provided with a plurality of draining holes to introduce and drain air in the regulating member

Methodology Applied

Scientific EffectPressure gradient: Pressure Gradient

Data Source

PatentUS10415604B2Pumping device for sucking or draining fluid

Publication Date: 2019.09.17 CRAFTS & CARRIERS TAIWAN

AI summary

A pumping device includes a seal cap unit including a cap, an air relief member connected with the cap, and a regulating member connected with the air relief member. The cap has an air inlet hole and an air outlet hole. The air outlet hole has a through hole. The air relief member is mounted on the air outlet hole and has a guide hole and a plurality of apertures. The regulating member has an air relief hole and a plurality of draining holes. Thus, the air relief hole of the regulating member and the pressure relief member provide a double pressure relief function to release the excessive air pressure in the barrel.