Dual-Function Flush Valve Actuator with Integrated Manual and Automatic Modes
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Solution Overview
Problem
Current flush valve actuation systems often require users to perform unique activation methods, leading to confusion and non-use in commercial settings, as they typically offer either manual or automatic actuation but not both seamlessly.
Innovation Solution
A device that allows for both automatic and manual activation of a flush valve, featuring a plunger and cam system with a motor and sensor for automatic operation, and a handle-like structure for intuitive manual operation, ensuring compatibility with traditional flush valve systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a flush valve is designed to provide both automatic and manual actuation capabilities, then the versatility and ease of operation are improved, but the device complexity increases due to requiring modification of standard flush valve components
Solution Approach 1:
The patent combines automatic and manual actuation mechanisms into a single integrated actuator assembly. The motor assembly with cam mechanism merges with the manual handle structure, allowing both automatic sensor-triggered operation and manual user operation through a unified device that shares common components like the plunger, cam, and housing.
Solution Approach 2:
The actuator assembly is designed as a universal component that can perform multiple functions: automatic actuation via sensor detection, manual actuation via handle operation, and maintaining compatibility with standard flush valve systems. This multi-functional design eliminates the need for separate automatic and manual flush systems.
2Adaptability or versatility
If current dual-function devices require modification to standard flush valves, then automatic and manual capabilities are achieved, but the ease of manufacture and installation deteriorates
Solution Approach 1:
The actuator assembly is segmented into distinct modular components including the motor assembly, cam mechanism, plunger, handle structure, and housing. This segmentation allows each component to be manufactured separately using standard processes, then assembled into the complete dual-function actuator, simplifying both manufacturing and installation.
Solution Approach 2:
The actuator assembly serves as an intermediary component that interfaces between the standard flush valve body and the user (either automatic sensor or manual operator). This intermediary design allows standard flush valves to gain dual functionality without modifying the valve body itself, simplifying manufacturing and installation.
3Adaptability or versatility
If unique actuation methods are required for dual-function devices, then automatic and manual operation are enabled, but the ease of operation deteriorates due to user confusion
Solution Approach 1:
Instead of requiring users to learn a new unique actuation method, the patent inverts the approach by making the manual handle operation identical to traditional manual flush valves. The handle operates in the conventional manner while the automatic function handles the alternative operation mode, eliminating user confusion.
Solution Approach 2:
The automatic sensor system performs the actuation function automatically without requiring user intervention or learning of special procedures. When automatic mode is selected, the sensor detects presence and triggers the cam mechanism automatically, serving itself rather than requiring user action.
Data Source
AI summary
A dual function actuator for a flush valve. The actuator contains a sensor for controlling a motor, which in response to a stimulus will move a plunger which actuates the flush valve. The actuator is also configured to allow for manual actuation of the flush valve by tilting a distal portion of the actuator in relation to the remaining portion of the actuator and flush valve, which moves the plunger actuating the flush valve.