Manual Paddle Water Pumping Device with Telescopic Shaft
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Solution Overview
Problem
Conventional paddles for boats face difficulties in efficiently pumping water due to the discharge orifice being on the handle, which leads to water accumulation and poor absorption and discharge efficiency.
Innovation Solution
A built-in water pumping device with a shaft comprising an inner and outer tube, an adjustable fitting sleeve, and a water absorption head with a passing orifice connected to a receiving chamber, allowing for efficient absorption and discharge of water through the blade's outlet when the tubes are manipulated.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the discharge orifice is defined on the handle, then the water pumping function is achieved, but the waters accumulate in corners of the handle and cannot be discharged continuously
Solution Approach 1:
The discharge system is segmented into multiple outlets distributed on the blade surface rather than a single orifice on the handle. This segmentation allows water to be discharged from multiple locations simultaneously, preventing accumulation and enabling continuous discharge as the blade moves through the water.
Solution Approach 2:
The discharge orifice is relocated from the handle (one-dimensional point) to the blade surface (two-dimensional area). This dimensional change allows water to be discharged across a broader area, improving discharge efficiency and continuity by utilizing the blade's movement through water to continuously present new discharge locations.
2Ease of manufacture
If the discharge orifice is perpendicular to the receiving chamber, then the structure is simplified, but the waters cannot be absorbed easily
Solution Approach 1:
The blade surface is designed with specific local qualities including hydrophilic coatings or micro-structures in the receiving chamber area to enhance water absorption. This local modification allows the blade to effectively absorb water from the water accommodation zone while maintaining overall structural simplicity.
3Length of moving object
If the paddle is made long to reach water accommodation zone, then the pumping range is extended, but the boat shakes and operation becomes difficult
Solution Approach 1:
The paddle incorporates a telescopic shaft with adjustable length, allowing the user to dynamically adjust the paddle length based on water conditions and boat position. This dynamic adjustment capability enables reaching the water accommodation zone when needed while maintaining shorter, more stable lengths during normal operation, resolving the contradiction between reach and stability.
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
Enables continuous and efficient water absorption and discharge from the boat, enhancing usability for both practical purposes and playful water fights in water parks.
Implementation Method 1
When pulling the outer tube and the inner tube outward and pushing the outer tube and the inner tube inward, the waters are absorbed and discharged out of the boat easily
Data Source
AI summary
A built-in water pumping device of a manual paddle for a boat contains: a shaft, a blade, and a water absorption head. The shaft includes an inner tube and an outer tube movably fitted with the inner tube so as to movably adjust a length of the shaft, thus pumping waters. An adjustable fitting sleeve is configured to lock or unlock the inner tube and the outer tube after adjusting the length of the shaft. The shaft includes a receiving chamber. A water absorption head is fixed on the outer tube and has a passing orifice. The blade includes at least one outlet communicating with the receiving chamber, such that the inner tube is actuated to absorb the waters into the receiving chamber from the passing orifice, and the inner tube is pulled back and forth so that the waters discharge out of the at least one outlet continuously.