Universal Non-Convex Press Type Drain Design
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional floor drains lack a trap, allowing odors and insects to escape, and bathtub and washbasin drains are convex, posing risks of injury from accidental kicks or cuts.
Innovation Solution
A universal non-convex press type drain with a flat strainer and a step-shaped drainpipe, featuring a moveable strainer with a compression spring and pressing block that switches between drain and stop modes, preventing odors and insects while ensuring a non-convex surface for safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a convex drain design is used, then the drain can prevent smell and insects, but it poses injury risks from accidental kicks or cuts
Solution Approach 1:
The patent inverts the conventional convex drain design into a concave drain structure. The strainer is positioned below the installing surface rather than protruding above it, eliminating the injury risk from convex surfaces while maintaining the sealing function to prevent smell and insects.
2Reliability
If a trap is added to floor drains to prevent smell and insects, then the drain function is improved, but the device complexity increases
Solution Approach 1:
The patent merges the strainer function and the trap sealing function into a single integrated component. The strainer serves dual purposes: filtering debris and providing the sealing barrier against smell and insects, thereby simplifying the overall structure while maintaining effective sealing performance.
3Ease of operation
If a moveable strainer with compression spring is used to switch drain mode, then the ease of operation is improved, but the device complexity increases
Solution Approach 1:
The compression spring provides self-service by automatically returning the strainer to its initial position after pressing. The spring stores energy during the pressing action and releases it to reset the strainer, eliminating the need for additional motors, sensors, or complex control mechanisms while maintaining easy operation.
4Object-affected harmful factors
If the strainer is positioned below the installing surface, then the injury risk is eliminated, but the ease of detecting the drain status becomes more difficult
Solution Approach 1:
The patent uses visual indicators such as color changes or position markers on the strainer to indicate the drain status. When the strainer moves to indicate drain mode or blocked mode, the color or position change provides clear visual feedback to users, making status detection easy despite the strainer being positioned below the surface.
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
Effectively prevents odors and insects while eliminating the risk of injury from convex surfaces, allowing easy switching between drain and stop modes and facilitating hair removal with a convenient installation and uninstallation process.
Implementation Method 1
a compression spring arranged between the upper stop section and the bottom of the moveable strainer
Implementation Method 2
the compression spring makes the top edge of the moveable strainer aligned to the top edge of the drainpipe
Implementation Method 3
the sealing ring is connecting to the open end of the inner tube, and combining the inner tube, the elevating component, the rotor, the jacking spring and the sealing ring to form a press type elevating mechanism
Data Source
AI summary
A universal non-convex press type drain, comprising: a drainpipe, having an upper stop section and a lower stop section; a pressing drain arranged inside the drainpipe and positioned by the lower stop section, the pressing drain has a stopper for stopping and draining water, the rise and fall of the stopper can be control by pressing; and a moveable strainer, the moveable strainer has a compression spring and has a pressing block below the moveable strainer; when the moveable strainer is not pressed, the compression spring makes the top edge of the moveable strainer aligned to the top edge of the drainpipe. So as to provide a non-convex press type drain which top edge is aligned to the installed surface and has the effect of preventing smell and insect.