Angular Offset Rods for Drive-Over Drain Tile Intake Guard
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Solution Overview
Problem
Existing drain tile guards are prone to damage from farm machinery and livestock, and they require frequent maintenance due to clogging issues, which affects the drainage efficiency and longevity of the system.
Innovation Solution
A drive-over tile intake guard with angularly offset inlet guard rods that allow smaller debris to pass through while blocking larger objects, designed to be driven over without damage and with reduced maintenance needs, featuring a flange and sleeve configuration for secure anchoring and self-cleaning properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional drain tile guards are used, then debris blocking is prevented, but the guards are prone to damage from farm machinery and livestock
Solution Approach 1:
The guard is divided into multiple discrete rods arranged radially, allowing farm machinery and livestock to pass between them without causing damage. The segmented structure prevents complete blockage while maintaining protection against debris.
Solution Approach 2:
Instead of creating a solid barrier that prevents all contact, the guard uses spaced rods that allow passage. This inverts the traditional approach from complete protection to selective protection, enabling machinery and livestock to pass through while still blocking debris.
2Reliability
If traditional drain tile guards are used, then larger debris is blocked, but smaller debris causes frequent clogging and maintenance
Solution Approach 1:
The guard rods are positioned at specific radial distances from the inlet center, creating different filtration zones. Rods at various radii block different sizes of debris, with closer rods handling larger debris and outer rods allowing smaller debris to pass through.
Solution Approach 2:
The guard transitions from a two-dimensional flat screen to a three-dimensional radial rod structure. This dimensional change allows debris to be blocked at multiple radial distances, creating a multi-stage filtration system that reduces clogging.
3Device complexity
If the inlet guard rods are positioned radially, then the structure is simple, but it does not effectively prevent clogging
Solution Approach 1:
The guard rods are positioned asymmetrically at different radial distances from the inlet center rather than uniformly. This asymmetric arrangement creates varying flow paths and debris capture zones, improving clogging prevention while maintaining structural simplicity.
Solution Approach 2:
The radially positioned rods create a preliminary filtration effect at the inlet, capturing and blocking larger debris before it can enter the drain tile. This preliminary action prevents clogging downstream while requiring minimal structural complexity.
Data Source
AI summary
A drive-over tile intake guard has a drain tile inlet coupler that rests against the earth surface and does not rise consequentially above the earth. The inlet coupler encompasses and protects the end of a drain tile pipe. A plurality of rods are affixed on a first end to the inlet coupler, and each extend therefrom simultaneously downward into the drain tile and also generally radially toward the center of the tile opening. However, the rods are also each angularly offset from radial to the tile opening center. By angularly offsetting the rods each in the same rotational direction, smaller debris that might block flow through other prior art guards but which will not block the drain tile from functioning will swirl, slip off of the rods and pass into the drain tile, and ultimately be discharged at the outlet end of the drain tile.