Quick-release and quick-installation hinge assembly

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Solution Overview

Problem

The existing quick-release structures for toilet lids, relying on inserting shafts and holes, result in poor firmness and stability, leading to instability and risk of separation under external forces.

Innovation Solution

A quick-release and quick-installation hinge assembly featuring a limiting member with an inserting portion and locking mechanism that provides position limitation between the hinge base and key plate, ensuring stable and convenient connection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If an inserting shaft and inserting hole structure is used for quick-release connection, then the disassembly and assembly operation is simple and tool-free, but the firmness and stability of the connection is poor

Engineering Contradiction:
Improvequick-release operationVSAvoidconnection stability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The connection structure is divided into multiple functional components: the inserting shaft for quick insertion, the limiting portion for position constraint, and the locking portion for secure engagement. This segmentation allows each component to perform its specific function, achieving both ease of operation and connection reliability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The limiting member is nested within the hinge base structure, with the inserting portion extending through the inserting hole. The limiting portion and locking portion are integrated into the hinge base, creating a compact multi-functional connection structure that maintains stability while enabling quick-release operation.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Device complexity

If a simple inserting shaft connection is used, then the device complexity is low, but the hinge may separate from the support base under large external force

Engineering Contradiction:
Improveconnection structureVSAvoidresistance to external force
Core Design Contradiction:
Device complexityVSStrength

Solution Approach 1:

Different portions of the connecting structure have different functional qualities: the inserting shaft provides insertion capability, the limiting portion provides position constraint in specific directions, and the locking portion provides strong engagement resistance. This local differentiation of qualities allows the structure to resist external forces effectively while maintaining relatively simple overall complexity.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The connection is constrained in multiple dimensions through the limiting portion (preventing lateral movement) and locking portion (preventing separation). This multi-dimensional constraint approach enhances the strength and reliability of the connection without requiring a completely complex structural design.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentUS12082753B2Quick-release and quick-installation hinge assembly
Publication Date: 2024.09.10 XIAMEN R&T PLUMBING TECH
  • US12082753B2 patent drawing
  • US12082753B2 patent drawing

AI summary

A quick-release and quick-installation hinge assembly includes a hinge to which a toilet lid is rotatably connected, a key plate fixed on a toilet bowl, and a limiting member. The hinge is fixedly provided with a hinge base fitted with the key plate. The hinge base and the key plate are in insertion fit in a lateral direction. The limiting member is provided with an inserting portion. The key plate is provided with an inserting hole that is in insertion fit with the inserting portion for position limitation. The inserting portion is fitted with the inserting hole for position limitation to prevent the hinge base and the key plate from being separated from each other in the lateral direction. The inserting portion penetrates through the inserting hole. The quick-release and quick-installation hinge assembly realizes a stable convenient connection structure between the hinge base of the hinge and the key plate.