Pressure Gauge Structure With Separation Washer

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Solution Overview

Problem

Conventional pressure gauge structures suffer from reduced measurement accuracy due to chemical corrosion, oxidation, and rust when in contact with tested objects, limiting their application in sensitive fields like food and chemicals.

Innovation Solution

A pressure gauge structure featuring a bow-shaped frame with a holder and contact film, incorporating a separation washer and protective sheet to maintain a distance from the contact film, preventing damage and incorporating a one-piece holder and connector design for cost reduction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If the pressure gauge structure contacts the tested object directly, then pressure measurement function is achieved, but chemical corrosion, oxidation, and rust occur reducing measurement accuracy

Engineering Contradiction:

Improvemeasurement accuracyVSAvoidchemical corrosion, oxidation, and rust

Core Design Contradiction:

Measurement precisionVSObject-affected harmful factors

Solution Approach 1:

The patent introduces a separation washer as an intermediary component positioned between the tested object and the contact film. This separation washer acts as a protective barrier that prevents direct contact between the tested object and the contact film, thereby avoiding chemical corrosion, oxidation, and rust while still allowing pressure transmission to maintain measurement accuracy.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent divides the pressure transmission path into separate functional zones using the separation washer. The separation washer creates distinct regions: one for tested object contact and another for contact film interaction, allowing each component to perform its function without direct contact between potentially corrosive elements and sensitive measurement components.

Inventive Principle:

Principle #1Segmentation

2Reliability

If the contact film contacts the tested object directly, then pressure measurement is enabled, but the contact film may be damaged causing the tested object to go off the charts

Engineering Contradiction:

Improvegauge reliabilityVSAvoidmechanical damage to contact film

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent positions the separation washer in advance between the tested object and the contact film to provide protective cushioning. This pre-positioned barrier prevents direct mechanical contact that could cause damage to the contact film, thereby protecting the gauge's reliability before any potential damage can occur.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

3Ease of manufacture

If multiple separate components are used for holder and connector, then assembly flexibility is maintained, but manufacture process and production cost increase

Engineering Contradiction:

Improveproduction costVSAvoidnumber of components

Core Design Contradiction:

Ease of manufactureVSDevice complexity

Solution Approach 1:

The patent merges the holder and connector into a single integrated component. This consolidation eliminates the need for separate assembly steps between these two parts, reducing manufacturing complexity and production costs while maintaining the functional requirements of both components in the pressure gauge structure.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS10488285B2Pressure gauge structure

Publication Date: 2019.11.26 CHIN RAY INDUSTRY LTD

AI summary

A pressure gauge structure contains: a body having a bow-shaped frame and a holder mounted under the bow-shaped frame, and a contact film defined between the bow-shaped frame and the holder. A connector is connected on a bottom of the holder, and a test conduit passes through the holder and the connector and accommodates a tested object. The contact film contacts with a separation washer corresponding to the contact film.