Detergent Sustained-Release Device for Water Using Apparatus
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Solution Overview
Problem
Existing detergent release devices for sanitary products continuously supply detergent during water usage, leading to waste and incompatibility with showerheads and basins, affecting user experience.
Innovation Solution
A detergent sustained-release device that provides a predetermined amount of detergent only during the end period of the water-using process, using a machine with a storage cavity and a sustained-release cavity with variable volume, controlled by a sustained-release control valve.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If detergent is supplied continuously during water usage, then cleaning function is provided throughout the process, but detergent is wasted and it affects user experience in showerheads and basins
Solution Approach 1:
The detergent release device uses a timer-controlled valve to release detergent periodically at specific intervals during the water usage process, rather than continuously. The controller opens the valve at predetermined time points to allow detergent to pass through the venturi, achieving periodic cleaning action that prevents waste while maintaining effectiveness.
Solution Approach 2:
The device pre-determines the timing and duration of detergent release based on the expected water usage duration. The controller calculates optimal release moments in advance and activates the valve accordingly, ensuring detergent is released at the most effective moments before water flow diminishes, rather than continuously throughout the entire process.
2Reliability
If detergent is supplied continuously during water usage, then cleaning is maintained throughout, but it is not applicable to showerheads and basins affecting user experience
Solution Approach 1:
By implementing periodic detergent release at controlled intervals, the device becomes adaptable to different sanitary products including showerheads and basins. The intermittent release pattern prevents detergent from interfering with user experience during direct water contact while still providing effective cleaning during drainage phases, expanding compatibility across product types.
Solution Approach 2:
The controller pre-determines release timing based on water usage duration and product type, allowing the same device to adapt to different sanitary products. By calculating optimal release moments in advance and adjusting the timing profile, the device maintains versatility across toilets, urinals, showerheads, and basins without continuous detergent supply interfering with user experience.
3Reliability
If detergent is supplied throughout the water usage process, then cleaning is continuous, but the detergent is washed away in the early stage resulting in waste
Solution Approach 1:
The timer-controlled valve releases detergent in periodic pulses at specific intervals during water usage, concentrating the cleaning action at moments when water flow is diminishing. This periodic release ensures detergent remains on surfaces longer between releases, increasing retention time and effectiveness while preventing early-stage wash-away that causes waste.
Solution Approach 2:
The controller pre-determines release timing to occur toward the end of the water usage process when water flow diminishes. By calculating optimal release moments in advance, the device ensures detergent is released when it can remain on surfaces longer without being immediately washed away, maximizing retention time and cleaning effectiveness while reducing waste.
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
This solution effectively avoids detergent waste, enhances cleaning efficiency by allowing the detergent to remain longer on the surfaces, and expands the device's applicability to various sanitary products without interfering with their normal use.
Implementation Method 1
The water pressure at the upstream end of the venturi is greater than the water pressure at the downstream end of the venturi. Thus, a small amount of water may enter the cavity through the water inlet and may mix with the detergent in the cavity
Data Source
AI summary
A detergent sustained-release device includes a storage cavity configured to store detergent. The detergent sustained-release device also includes a sustained-release cavity having a variable volume and configured to release the detergent. The detergent sustained-release device also includes a discharging and filling pipe configured to be connected to the sustained-release cavity and connected to an outlet pipe of a water-using control valve of a water-using device. The detergent sustained-release device also includes a channel disposed between the storage cavity and the sustained-release cavity. The detergent sustained-release device also includes a sustained-release control valve disposed in the channel and configured to switch between a closed state and an opened state in response to a volume change of the sustained-release cavity.