External Drainage Valve for Compact Toilet Flushing Mechanism
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Solution Overview
Problem
Existing toilet flushing mechanisms require large components and complex assembly, limiting design flexibility and maintenance convenience due to strict size and positional requirements.
Innovation Solution
A draining and flushing mechanism with a tank body, first piston, fixation rod, main energy-storage spring, and drainage valve, where the drainage valve is assembled on the outer side of the tank, allowing for reduced size and simplified assembly and maintenance, and enabling configuration with multiple flushing mechanisms for efficient water use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the drainage valve is assembled inside the tank body, then the sealing performance is improved, but the device complexity and assembly difficulty increase
Solution Approach 1:
The drainage valve is separated from the tank body into an independent component that can be assembled externally. This segmentation allows the valve to be manufactured, tested, and maintained independently, reducing assembly complexity while maintaining sealing integrity through dedicated sealing components at the connection interface.
Solution Approach 2:
The drainage valve is extracted from the internal tank body structure and positioned on the external side. This extraction simplifies the internal tank structure, reduces assembly steps, and allows the valve to be accessed easily for maintenance without disassembling the tank body, while sealing is maintained through external sealing mechanisms.
2Ease of operation
If the drainage valve is assembled on the outer side of the tank, then the ease of assembly and maintenance is improved, but the volume of the flushing mechanism increases
Solution Approach 1:
The drainage valve is designed to nest against the external surface of the tank body, utilizing the available external space efficiently. The valve components are arranged in a compact configuration that minimizes the protrusion from the tank surface, thereby maintaining a compact overall volume while allowing external assembly and maintenance access.
Solution Approach 2:
The drainage valve is positioned in a different spatial dimension (external surface) rather than inside the tank volume. This dimensional change allows the valve to be accessed from the outside for easy maintenance without occupying internal tank space, effectively separating the functional volume from the operational access volume.
3Productivity
If the first piston divides the tank body into top and bottom tanks, then the water storage efficiency is improved, but the device complexity increases
Solution Approach 1:
The first piston serves multiple functions: it divides the tank body into top and bottom sections for efficient water storage and pressure management, acts as a sealing element, and provides a mounting structure for the drainage valve. This multi-functionality reduces the need for additional components, thereby maintaining simplicity while improving water storage efficiency.
Solution Approach 2:
The piston structure is merged with the sealing and valve support functions. Instead of having separate components for division, sealing, and valve mounting, these functions are integrated into a single piston assembly, reducing overall device complexity while achieving efficient water storage and management.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enables a more compact and user-friendly flushing system, allowing for reduced toilet size and improved design flexibility, while ensuring effective flushing and water savings.
Implementation Method 1
a main energy-storage spring attached to the first piston to generate a force to push the first piston to the bottom tank
Implementation Method 2
the waterseal element is disposed above the inlet of the drainage valve, forming a sealing mechanism with the inlet of the main body
Data Source
AI summary
A draining and flushing mechanism comprises a tank body, a first piston, a fixation rod to assemble the first piston, a main energy-storage spring and a drainage valve; the first piston is assembled inside the tank body and divided the tank body into a top tank and a bottom tank; the bottom tank is a water storage room spaced by the first piston and the tank body at the lower portion of the tank body; the main energy-storage spring is attached to the first piston to push the first piston to the bottom tank; an inlet pipe is connected to the bottom tank; wherein the bottom surface of the bottom tank is disposed with an assembly hole, the drainage valve is connected to the assembly hole and assembled to the outer side of the bottom tank, the drainage valve is disposed with at least a drainage hole.