Hydraulic Moving Panel Drainage Grating for Debris Control
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Solution Overview
Problem
Conventional drainage gratings often allow foreign substances like garbage and soil to enter drains, obstructing rainwater flow and requiring frequent cleaning, as they do not effectively manage hydraulic pressure during rainfall.
Innovation Solution
A drainage grating structure with a moving panel that adjusts based on water pressure, allowing for efficient drainage and preventing foreign substances from entering the drain by moving up during low pressure and descending during high pressure, and can be easily removed or adjusted for enhanced drainage during heavy rain.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a fixed grating structure with lattice design is used, then drainage function is provided, but foreign substances enter the drain and obstruct flow
Solution Approach 1:
The patent applies a movable panel instead of a fixed grating structure. The panel can dynamically adjust its position based on water pressure conditions - remaining closed during normal conditions to block foreign substances, and opening during heavy rainfall to allow drainage. This dynamic behavior resolves the contradiction between preventing foreign substance intrusion and maintaining drainage efficiency.
Solution Approach 2:
The movable panel is designed to automatically respond to water pressure changes without external control. When water pressure increases during rainfall, the panel automatically opens to allow drainage. When pressure decreases, it automatically closes to prevent foreign substance entry. This self-service mechanism eliminates the need for manual operation while maintaining both drainage function and foreign substance prevention.
2Productivity
If a movable panel is added to the grating structure, then drainage efficiency is improved, but device complexity increases
Solution Approach 1:
The movable panel utilizes hydraulic pressure from accumulating rainwater as the actuating force to open the panel. The water pressure itself serves as the mechanism to trigger the drainage function, eliminating the need for complex sensors, motors, or control systems. This hydraulic approach maintains drainage efficiency while minimizing structural complexity.
Solution Approach 2:
The system changes the state parameter of the panel from fixed to movable, and the activation is based on changing the water pressure parameter. When water pressure reaches a certain threshold, the panel transitions from closed to open state. This parameter-based control simplifies the overall system by using natural physical changes rather than mechanical control systems.
3Ease of repair
If the grating structure is designed for easy removal, then maintenance is simplified, but structural stability may be compromised
Solution Approach 1:
The grating structure is divided into separable components - the frame and the movable panel assembly can be independently removed. This segmentation allows the panel to be easily detached for cleaning or replacement without compromising the frame's structural integrity when assembled. The modular design maintains stability during operation while enabling easy maintenance.
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 moving panel design ensures effective drainage by allowing water to flow through while keeping foreign substances out, facilitating easy cleaning and maintaining smooth water flow, especially during rainy seasons or heavy rain events.
Implementation Method 1
configured to move up and down according to a hydraulic pressure of rainwater
Data Source
AI summary
A drainage grating includes a grating disposed on a drain, a moving panel disposed at an upper portion of the grating and configured to discharge water to the drain based on moving up and down according to a hydraulic pressure of water. The moving panel is configured to block introduction of foreign substances into the drain and facilitate cleaning or management of the drainage grating. The drainage grating is configured to be at least partially removed from a support installed at the drain to provide a sufficient drainage space in a rainy season or in heavy rain.