Dual Flow Switching Valve Automatic Reset Mechanism
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Solution Overview
Problem
Existing flow regulation valves lack an automatic reset function, making them inconvenient to use and prone to deformation due to water flow, which shortens their service life.
Innovation Solution
A dual flow switching device with a valve body, valve element, spring, inner valve seat, and outer valve seat, featuring axial and radial liquid channels, sealing elements, and a spring mechanism that automatically switches between low-flow and high-flow modes based on water pressure and elastic force, allowing for automatic reset to a low-flow state.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a flow regulation valve with manual reset function is used, then the device complexity is reduced, but the ease of operation deteriorates due to requiring manual intervention
Solution Approach 1:
The valve automatically resets itself after being activated. When the button is released, the elastic element automatically pushes the control rod back to its initial position, closing the second water outlet and returning to the first water outlet flow mode without requiring manual intervention. This self-service mechanism resolves the contradiction by eliminating the need for continuous manual operation while maintaining the valve's functional complexity.
2Ease of operation
If the switching shaft is perpendicular to water flow direction to control flow rate, then the ease of operation is improved, but the reliability deteriorates due to deformation from long-term water flow impact
Solution Approach 1:
Instead of having the control rod perpendicular to the water flow (which causes deformation), the control rod is designed to be parallel to the water flow direction. This inversion of the conventional arrangement allows the control rod to move axially along the flow direction, eliminating the perpendicular impact forces that cause deformation and extending the valve's service life while maintaining operational effectiveness.
3Productivity
If a button must be pressed continuously to maintain large water flow, then the productivity is improved, but the loss of time increases due to continuous manual pressing
Solution Approach 1:
The valve operates in periodic cycles: when the button is pressed, the control rod moves to open the second water outlet for high flow; when released, the elastic element automatically returns the control rod to close the second outlet and reopen the first outlet. This periodic automatic cycling eliminates the need for continuous manual pressing, reducing time loss while maintaining the ability to achieve high water flow rates when needed.
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 device efficiently manages water flow, automatically switching to high-flow mode when needed and returning to low-flow mode after water cutoff, enhancing user convenience and extending the device's service life by minimizing manual intervention and deformation risks.
Implementation Method 1
the spring is sleeved on the valve element, and a spring seat is provided on the valve element at the upper end of the upper sealing element, with one end of the spring provided on the spring seat and the other end against the inner side of the valve body
Implementation Method 2
meanwhile the back pressure applied to the valve body is greater than the elastic force of the spring onto the valve body due to the effect of water pressure, thus making the valve body in a pull-down state
Data Source
AI summary
Disclosed is a dual flow switching device, comprising a valve body, a valve element, a spring, an inner valve seat and an outer valve seat, wherein the valve element is arranged through the valve body; the middle part of the valve element is provided with an axial liquid channel and a radial liquid channel; the valve element is provided with upper and lower sealing elements; the outlet of the radial liquid channel is located between the upper and lower sealing elements; the outer valve seat is provided in a corresponding position of the upper sealing element and the inner valve seat in a corresponding position of the lower sealing element; the spring is sleeved on the valve element, and a spring seat is provided on the valve element at the upper end of the upper sealing element. The present utility model boasts a dual-outflow channel and dual-flow outflow function.