Toilet Flushing Device With Eccentric Plate Mechanism
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Solution Overview
Problem
Existing toilet flush actuation devices are complex to assemble and lack efficient mechanisms for adjusting water consumption, particularly in achieving limited vertical displacement for double rocker button actuation.
Innovation Solution
A flush actuation mechanism featuring a housing with a plate that moves between rest and actuation positions, utilizing central and lateral bearings that undergo translational movements, guided by slots in the side walls, allowing for adjustment between large and small flush volumes with minimal vertical displacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a double rocker button actuation mechanism is used to adjust water consumption, then water consumption adjustment capability is improved, but assembly complexity increases
Solution Approach 1:
The mechanism is divided into modular components: a plate with integrated bearings, guide slots in the housing, and distinct actuation positions. This segmentation allows each component to be manufactured and assembled independently, reducing overall assembly complexity while maintaining the double rocker button functionality for water consumption adjustment
Solution Approach 2:
The plate serves multiple functions: it acts as the actuation interface for both large and small flushes, provides bearing surfaces for rotational movement, and guides the motion through its interaction with the guide slots. This multi-functionality reduces the number of separate components needed, thereby simplifying assembly while preserving adaptability
2Ease of operation
If the plate is allowed to move between rest and actuation positions with bearing displacement, then actuation functionality is improved, but vertical displacement control becomes more difficult
Solution Approach 1:
The guide slots act as intermediary elements between the plate and housing, constraining the plate's movement path. These slots are precisely engineered to guide the bearings through controlled trajectories, ensuring limited vertical displacement while maintaining smooth actuation functionality. The guide slots mediate between the need for movement and the need for precision control
3Adaptability or versatility
If the central bearing is offset laterally during plate movement, then motion flexibility is improved, but positioning precision may deteriorate
Solution Approach 1:
The central bearing's lateral offset is not fixed but varies dynamically during plate movement. As the plate transitions between rest and actuation positions, the bearing naturally offsets laterally to follow the curved path defined by the guide slots. This dynamic behavior provides motion flexibility while the guide slots ensure the offset remains within precise tolerances, maintaining positioning accuracy
Data Source
Figure 1A~1B
Figure 2A~2C
Figure 3~4
AI summary
The mechanism has a plate (20) swinging between a rest position and an actuation position and comprising a central stage (21), a first side stage and a second side stage. The central stage and the side stages are placed in displacement with respect to a support case (1) during movement of the plate between the rest and actuation positions, where the central stage is laterally eccentric during movement of the plate. The case comprises guiding units (32a, 32b) guiding the plate between the rest and actuation positions. A side wall of the guiding unit is formed with openings.