Discharge Valve Rotary Winding Mechanism for Dual Flushing Modes
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Solution Overview
Problem
Existing discharge valve operating devices for flush water tank systems face challenges in easily switching between flushing modes while ensuring accurate valve opening operations, particularly in automating the valve opening process without direct manual user operation.
Innovation Solution
A discharge valve operating device that utilizes a rotary winding device with linking members and an electric operation unit, allowing for easy switching between flushing modes by rotating the device in different directions to wind or unwind operation wires of varying lengths, ensuring a constant pulling-up amount for the discharge valve, regardless of the flushing mode.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single common operation wire is used for both full-flushing and partial-flushing modes, then the device complexity is reduced, but the manufacturing precision of the valve opening operation becomes difficult to control accurately
Solution Approach 1:
The patent divides the single operation wire into two separate operation wires (first operation wire and second operation wire), each dedicated to a specific flushing mode. This segmentation allows precise control of the discharge valve for both full-flushing and partial-flushing modes independently, resolving the contradiction between device simplicity and operational precision.
Solution Approach 2:
The patent employs a single rotary winding member that can wind both the first operation wire and the second operation wire. This multi-functional design allows one component to serve multiple purposes, reducing overall device complexity while maintaining the ability to perform different flushing operations with appropriate precision.
2Adaptability or versatility
If the pulling-up amount of the operation wire is varied between full-flushing and partial-flushing modes, then the adaptability to different flushing modes is improved, but the ease of operation deteriorates due to complex control requirements
Solution Approach 1:
The patent uses a rotary winding member that can dynamically switch between winding the first operation wire and the second operation wire based on the selected flushing mode. This dynamic switching mechanism, controlled by a control unit, allows the system to adapt to different flushing requirements while maintaining simple user operation through automatic mode-based control.
Solution Approach 2:
The control unit receives signals indicating the desired flushing mode and automatically controls which operation wire is wound and by what amount. This feedback-based control system eliminates the need for users to manually adjust complex parameters, providing both adaptability to different modes and ease of operation.
3Ease of operation
If automation of the valve opening operation is implemented, then the ease of operation is improved, but the device complexity increases due to additional control mechanisms
Solution Approach 1:
The system automatically determines which operation wire to wind and by what amount based on the selected flushing mode, without requiring complex user input or adjustment. The control unit manages the entire process autonomously, providing automated valve opening operation while keeping the control mechanism relatively simple through rule-based decision logic.
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
Enables efficient and accurate valve opening operations in different flushing modes with a common rotary winding device, allowing for easy operation and automation of toilet flushing, regardless of the flushing mode, by using a larger rotation radius for the rotary winding device compared to the electric rotating shaft.
Implementation Method 1
a rotary winding device to which respective other ends of the first linking member and the second linking member are linked; and an operation unit configured to rotationally operate the rotary winding device
Data Source
AI summary
A discharge valve operating device includes a first linking member and a second linking member, a rotary winding device, and an operation unit configured to rotationally operate the rotary winding device, wherein when the operation unit rotationally operates in a first direction, the operation unit is configured to perform toilet flushing in a full-flushing mode by pulling up the discharge valve by a first length by the rotary winding device winding the first linking member by the first length in the first direction, and when the operation unit rotationally operates in a second direction opposite to the first direction, the operation unit is configured to perform toilet flushing in a partial-flushing mode by pulling up the discharge valve by a second length by the rotary winding device winding the second linking member in the second direction by the second length which is the same as the first length.