Capillary Wicking Plant Watering Device
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Solution Overview
Problem
Existing automatic watering systems for plants in containers are costly, complex, and often wasteful, requiring significant labor and inefficient water usage.
Innovation Solution
An automatic plant watering device featuring a reservoir with wicking fabric and spike portions that extend into the soil, allowing for efficient water delivery through capillary action, along with a level indicator and valve control for optimal water management, and the ability to connect multiple devices for extended watering duration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If computer controlled pump or valve irrigation systems are used, then automated watering is achieved, but system cost and complexity increase significantly
Solution Approach 1:
The system uses capillary wicking material that automatically draws water from the reservoir through capillary action without requiring pumps, valves, or electrical control systems. The wicking material self-regulates water delivery based on soil moisture conditions, eliminating the need for complex automated control mechanisms while maintaining automation of the watering function.
Solution Approach 2:
The patent replaces mechanical pump and valve systems with passive capillary wicking material. Instead of using mechanically controlled fluid delivery, the system utilizes the physical capillary properties of the wicking material to automatically transport water from the reservoir to the soil, eliminating complex mechanical components.
2Extent of automation
If computer controlled pump or valve irrigation systems are used, then automated watering is achieved, but installation and maintenance complexity increase
Solution Approach 1:
The wicking material automatically performs water delivery without requiring installation of complex infrastructure or ongoing maintenance of mechanical components. The system is installed by simply placing the reservoir and positioning the wicking material, with no pipes, electrical wiring, or moving parts requiring assembly or maintenance.
Solution Approach 2:
The system uses simple, inexpensive wicking material that can be easily replaced if needed, rather than investing in expensive, complex mechanical irrigation infrastructure. The reservoir and wicking material constitute a simple, low-cost system that prioritizes ease of installation and maintenance over long-term durability of individual components.
3Ease of manufacture
If simple irrigation systems are used, then installation is easier, but water waste increases
Solution Approach 1:
The wicking material delivers water locally and directly to the soil through capillary action, ensuring water is applied precisely where needed rather than through broad sprinkling or flooding. The system creates localized water delivery zones around plant roots, maximizing water utilization efficiency while maintaining installation simplicity.
Solution Approach 2:
The wicking material naturally responds to soil moisture conditions, drawing water only when the soil is dry and stopping when the soil is sufficiently moist. This passive feedback mechanism prevents water waste by automatically regulating water delivery based on actual soil moisture needs without requiring sensors or control systems.
4Duration of action of moving object
If larger reservoirs are used, then watering duration is extended, but device size and weight increase
Solution Approach 1:
The wicking material's capillary structure enables efficient water absorption and transport, maximizing water delivery rate from a given reservoir volume. This allows the system to extend watering duration by optimizing the water extraction efficiency rather than simply increasing reservoir size, thereby avoiding excessive weight gain.
Solution Approach 2:
The system combines the reservoir with the wicking material to create an integrated water delivery system where the capillary properties of the wicking material enhance the functional capacity of the reservoir. This composite approach allows for more efficient water utilization, extending watering duration without proportionally increasing overall system weight.
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 reduces labor and water waste by providing efficient, automated watering with minimal reservoir size, allowing for prolonged watering intervals and easy maintenance, while enabling connection of multiple devices for extended use.
Implementation Method 1
a wicking material portion (52) supported by the spike portion and arranged for conveying water from the reservoir into the earth
Data Source
Figure 1~2
Figure 3~4
Figure 5A~5B
AI summary
An automatic plant watering device (1) comprising a reservoir (4) for holding water, a support portion (4) for supporting a container (2), (3) of earth above the reservoir (4) in use and at least one projecting watering portion (5) extending from the reservoir (4) and for extending into a supported container of earth in use. The watering portion (5) comprising a wicking material portion (52) for conveying water under capillary action from the reservoir (4) towards a supported container (23) of earth in use.