Counterweight-Integrated Window Drainage Valve
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Solution Overview
Problem
Current drainage mechanisms for shaft windows are complex, prone to wear, and require individual adjustment, leading to potential clogging and increased manufacturing costs due to the need for extensive spring assemblies and linkage systems.
Innovation Solution
A drainage device with a vertically movable valve part integrated into a counterweight, ensuring reliable opening and reduced component count by using a spring for contact pressure and a guide rod system, eliminating the need for complex mechanisms and individual adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a complex spring assembly and linkage system are used to actuate the valve cone, then the valve can be opened when the window is opened, but the device complexity increases and individual adjustment is required
Solution Approach 1:
The valve cone is directly integrated into the counterweight structure, merging two separate components (valve mechanism and counterweight) into a single unified component. This eliminates the need for separate linkages and spring assemblies, reducing device complexity while maintaining reliable valve operation through the counterweight's inherent vertical movement
Solution Approach 2:
The counterweight serves dual functions: providing the counterbalancing force for the window and simultaneously actuating the drainage valve. By making the counterweight multi-functional, the patent eliminates the need for separate valve actuation mechanisms, reducing overall system complexity
2Ease of manufacture
If a fixed closing position valve cone is used, then the valve can be manufactured simply, but the valve becomes uptight over time due to wear and requires individual adjustment
Solution Approach 1:
The valve cone transitions from a fixed closing position to a dynamic position that automatically adjusts with the counterweight's vertical movement. The valve cone is free to move vertically within the counterweight, allowing it to adapt to wear and manufacturing tolerances without requiring individual adjustment, thereby maintaining reliable contact pressure over time
3Reliability
If a valve cone actuated via contact plate and springs is used, then the valve can be opened when the window is opened, but the mechanism becomes complicated and requires extensive adjustment
Solution Approach 1:
The patent extracts and eliminates the complex spring assembly and contact plate mechanism from the system. By directly integrating the valve cone into the counterweight, the invention removes unnecessary components (springs, contact plates, linkages) while maintaining the essential drainage functionality through the counterweight's vertical movement alone
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 provides reliable, simplified drainage with reduced manufacturing costs and improved quality assurance by ensuring consistent contact pressure and easy integration into existing window designs, while maintaining functionality even with wear and soiling.
Implementation Method 1
the valve head is pressed against the drain relative to the position of the counterweight by a spring
Implementation Method 2
when the window is opened, the counterweight can be raised simultaneously with the valve head
Data Source
AI summary
A drainage device, in particular for a shaft window, contains a vertically movable valve part which has a valve head and an immovable valve part valve which has a drain which can be dosed by the valve head in a closed position. The vertically movable valve part is arranged on a counterweight.