Fertilizer Spike Injection Tool with Extraction Mechanism
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Solution Overview
Problem
Existing fertilizer spike injection tools are inefficient, time-consuming, and costly due to issues like extraneous operator time and energy, unstable operation, and maintenance requirements, particularly when the fertilizer spike load chamber or retention mechanism is injected into the soil along with the spike, leading to friction, clogging, and jamming.
Innovation Solution
A tool design that eliminates the need for the fertilizer spike load chamber or retention mechanism to be injected into the soil, using a dual-foot on-center operation with slide guides and a novel wire spring design for effortless lock, load, and release, allowing simultaneous injection and ejection of the fertilizer spike with reduced step-up height and minimal operator effort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the fertilizer spike load chamber or retention mechanism is injected into the soil along with the spike, then the fertilizer spike can be delivered to the target location, but friction, clogging, and jamming occur requiring maintenance
Solution Approach 1:
The invention extracts the fertilizer spike from the load chamber after injection, leaving the chamber and retention mechanism outside the soil. This prevents soil adhesion and clogging of the extraneous mass, eliminating the need for maintenance while ensuring reliable fertilizer spike delivery to the target location
2Device complexity
If the fertilizer spike load chamber and retention mechanism are injected into the soil concurrent with the fertilizer spike, then the tool structure is simplified, but extraneous operator time and energy are required to overcome friction and remove adhered soil
Solution Approach 1:
The load chamber and retention mechanism are extracted from the soil after fertilizer spike injection, preventing soil adhesion to the extraneous mass. This eliminates the time and energy required for removal and cleaning operations while maintaining simple tool structure
Solution Approach 2:
The tool operation is segmented into distinct phases: injection of the fertilizer spike, followed by extraction of the load chamber and retention mechanism. This segmentation allows the fertilizer spike to be delivered reliably while preventing the extraneous mass from becoming clogged with soil, reducing operator time and energy requirements
3Ease of operation
If the tool is designed for hand or single-foot operation, then the tool portability is maintained, but operator stability and balance are compromised
Solution Approach 1:
The operation is segmented so that the operator uses both feet to step on the tool simultaneously, providing stable and balanced operation. The tool remains portable and can be easily moved to different locations, while the dual-foot operation ensures stability during the injection process
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 tool significantly reduces operator time and energy, eliminates maintenance needs, and increases the range of soil firmness applications while maintaining upright operation, ensuring efficient and cost-effective fertilizer spike injection and ejection.
Implementation Method 1
a novel wire spring design for effortless lock, load, and release
Data Source
AI summary
A tool for injecting solid fertilizer spikes into soil for tree and plant root nutrition utilizing elongated 90° brackets to reduce the step-up height, form a fertilizer load chamber and to provide for a flat spring fertilizer spike retention mechanism such that the tool is fully operable in an upright position wherein a fertilizer spike is left embedded in the ground and detached from the tool without the need to remove the tool from the ground in a manner where, with one process of downward movement of the foot bar, two functions occur simultaneously, namely; the full injection of the fertilizer spike into the soil concurrent with the full release of the fertilizer spike from the tool by the complete ejection of the fertilizer spike from the fertilizer spike load chamber and the flat spring fertilizer spike retention mechanism. The tool is also provided with a spring wire that is adapted such that the fertilizer spike chamber, the injector tube and the foot bar are held in place in the load position until released by downward force by the operator on the top the foot bar.