Detachable Molecular Sieve Pull Ring Mechanism

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Solution Overview

Problem

Existing household oxygen generators with fixedly installed molecular sieves are inconvenient to operate due to the lack of a firm and reliable mechanism for removing and replacing the molecular sieve barrels.

Innovation Solution

A detachable molecular sieve system featuring an oxygen generator shell and a pull ring, where the sieve barrel is inserted into the shell, and a pull ring connects to a threaded hole on the sieve barrel cover plate, allowing for secure and easy removal and replacement of the sieve barrel.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a steel wire handle is used to remove the molecular sieve barrel, then the molecular sieve can be detached, but the handle is not firm and difficult to operate

Engineering Contradiction:

Improveease of removing molecular sieve barrelVSAvoidfirmness of handle

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

A pull ring is introduced as an intermediary component between the user's hand and the molecular sieve barrel. The pull ring connects to the barrel cover plate through a threaded connection, providing a firm gripping interface that improves both reliability and ease of operation when removing or installing the barrel.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If the molecular sieve is fixedly installed in the oxygen generator, then the structure is stable, but it is inconvenient to replace the molecular sieve

Engineering Contradiction:

Improvestability of molecular sieve installationVSAvoidconvenience of replacing molecular sieve

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The molecular sieve installation transitions from a completely fixed state to a dynamic state where it can be easily inserted and removed. The pull ring with threaded connection to the barrel cover plate enables controlled movement - the barrel can be firmly held during operation but easily detached when needed by unscrewing the pull ring.

Inventive Principle:

Principle #15Dynamics

3Ease of operation

If an ordinary steel wire handle is used for lifting the molecular sieve barrel, then the barrel can be removed, but the lifting feel is poor and operation is troublesome

Engineering Contradiction:

Improveconvenience of lifting operationVSAvoidfirmness during lifting

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The pull ring serves as a mediator between the user and the molecular sieve barrel, providing a larger, more ergonomic gripping surface compared to a steel wire handle. The threaded connection ensures firm attachment to the barrel cover plate, delivering both reliability and improved lifting experience.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS20250170517A1Detachable molecular sieve

Publication Date: 2025.05.29 NANJING MOOXYGEN MEDICAL TECHNOLOGY CO LTD

AI summary

A detachable molecular sieve is provided, including an oxygen generator shell and a detachable pull ring. A sieve barrel is inserted into the oxygen generator shell, a sieve barrel cover plate is arranged on the sieve barrel, a pull ring connecting hole is formed on the sieve barrel cover plate, and the pull ring connecting hole is connected with the detachable pull ring.