Self-Compensating Damping Shaft Mechanism for Enhanced Durability
Here’s PatSnap Eureka !
Summary
Problems
Existing damping spindle mechanisms in rotation connectors, such as those used in toilet seat covers, face issues with mechanical wear leading to instability and reduced service life, as they do not effectively compensate for gap changes between components during rotation, causing damage and inefficient damping performance.
Innovation solutions
A damping spindle mechanism with self-compensation, featuring a spindle, sleeve, housing, and deformable thin walls in the blade and sleeve, which adjust under pressure to maintain a constant damping oil volume and compensate for mechanical wear by deforming to maintain stability, ensuring the mechanism operates effectively over a long period.
TRIZ Analysis
Specific contradictions:
General conflict description:
Principle concept:
If a conventional damping spindle mechanism is used, then the damping oil can flow through the clearance between components to provide damping effect, but the gap between components enlarges due to mechanical wear over time, causing instability and reduced service life
Why choose this principle:
The blade is designed with a deformable thin wall that can dynamically adjust its position. When the damping oil pressure increases due to component wear gaps, the thin wall deforms towards the housing internal wall surface, automatically compensating for the enlarged gaps and maintaining stable damping performance throughout the service life
Principle concept:
If a conventional damping spindle mechanism is used, then the damping oil can flow through the clearance between components to provide damping effect, but the gap between components enlarges due to mechanical wear over time, causing instability and reduced service life
Why choose this principle:
The thin wall structure changes its physical state from rigid to deformable under pressure. The deformation of the thin wall alters the effective gap dimensions, allowing the system to adapt to wear-induced changes and maintain consistent damping characteristics over time
Application Domain
Data Source
AI summary:
A damping spindle mechanism with self-compensation, featuring a spindle, sleeve, housing, and deformable thin walls in the blade and sleeve, which adjust under pressure to maintain a constant damping oil volume and compensate for mechanical wear by deforming to maintain stability, ensuring the mechanism operates effectively over a long period.
Abstract
A damping rotating-shaft mechanism with auto compensation comprises a rotating-shaft (1), a guide sleeve (2), a housing (3) and a blade (4). The guide sleeve is fitted to a rotating-shaft in a thread manner. The guide sleeve and the rotating-shaft are mounted in the housing, and the guide sleeve divides a housing cavity into a first cavity body and a second cavity body. A first channel that connects the two cavity bodies along an axial direction is arranged on the guide sleeve. The blade is movably mounted on the guide sleeve and is located on a side, near the second cavity body, of the first channel so as to close or open the first channel. The blade is fitted in a circle shape or an arc shape at an inner wall surface of the housing. The blade is provided with a first thin wall (41) capable of deforming. When the blade moves in a direction to the second cavity body, the first thin wall deforms in a direction to the inner wall surface. Arrangement of an auto compensation structure can automatically compensate a gap generated due to mechanical wear when a fitting gap between components increases, thereby making the damping rotating-shaft mechanism stay in a stable state for a long period of time and achieving a purpose of prolonging the service life of the damping rotating-shaft mechanism.