Leg-Controlled Submersible Propeller for Hands-Free Diver Steering
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Solution Overview
Problem
Existing underwater propellers require manual control by hand or through a connected controller, limiting divers' ability to operate other equipment and often cause conflicts with other gear, and lack functionalities such as retreating and spinning.
Innovation Solution
A submersible propeller system controlled by angle controllers on the legs, allowing operations like advancing, variable-speed advancing, retreating, turning, and in-situ spinning through adjustments of the included angle between the thigh and calf without manual hand control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual control by hand or connected controller is used, then control precision is improved, but diver's hands are occupied and cannot operate other equipment
Solution Approach 1:
The patent replaces manual hand control with foot-based mechanical control. The diver uses foot movement to actuate a control mechanism that operates the propeller, substituting the mechanical action of the hand with the mechanical action of the foot. This allows hands-free operation while maintaining direct mechanical control precision.
Solution Approach 2:
The control system is designed to be self-operating through the diver's natural foot movement. The diver's foot movement directly actuates the control mechanism without requiring separate control inputs, making the system serve itself through the diver's inherent body movements.
2Use of energy by moving object
If fixed backpack type is used, then power supply is improved, but conflicts with other equipment such as gas cylinder occur
Solution Approach 1:
The patent segments the power supply system from the backpack configuration. Instead of a fixed backpack battery, the system uses a more flexible power supply arrangement that can be positioned to avoid conflicts with gas cylinders and other equipment, allowing independent optimization of power supply and equipment layout.
Solution Approach 2:
The system transitions from a fixed backpack configuration to a more dynamic arrangement where the power supply and control components can be positioned flexibly. This allows the diver to adjust the configuration to avoid equipment conflicts while maintaining power supply functionality.
3Device complexity
If simple propulsion function is provided, then device complexity is reduced, but functionalities such as retreating and spinning cannot be implemented
Solution Approach 1:
The patent implements dynamic control of the propeller system through foot-based actuation. The diver can vary the propeller's operational state (direction, speed, rotation) by adjusting foot movement, enabling complex maneuvers like retreating and spinning without requiring a mechanically complex multi-propeller system.
Solution Approach 2:
The system achieves multiple functions by changing operational parameters of a single propeller rather than adding multiple propellers. By varying parameters such as rotation direction, rotation speed, and thrust angle through foot control, the system enables advancing, retreating, turning, and spinning functions with a relatively simple propeller structure.
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 hands-free operation of the propeller system, allowing divers to perform various maneuvers using leg angles, and includes safety features like a diving depth detector to prevent dangerous ascents.
Implementation Method 1
said inner disc is provided with a circular groove, and a central hole of the inner disc is provided at a center of a bottom of the circular groove; a first groove is provided at an outer edge 90° clockwise with the central hole of the inner disc serving as the center, and the first groove is a circular groove; a second groove is provided at an outer edge 90°～135° clockwise with the central hole of the inner disc serving as the center, and the second groove is a long strip-shaped groove; a third groove is provided at an outer edge 135°～180° clockwise with the central hole of the inner disc serving as the center, and the third groove is composed of a plurality of circular grooves; and the first groove, the second groove and the third groove are respectively provided therein with photoelectric sensors. A central part of the outer disc is provided with a disc-shaped boss, and a central hole of the outer disc is provided at a center of the disc-shaped boss; a fourth groove is provided at an outer edge 180° clockwise with the central hole of the outer disc serving as the center, and the fourth groove is a circular groove in which an LED is arranged
Data Source
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AI summary
The present disclosure relates to the technical field of propellers, and specifically provides a submersible propeller, which includes a battery and propellers in which: the propellers include a left propeller and a right propeller; front portions of the left propeller and the right propeller are connected to a waist-wearing power supply battery through a power supply cable for the left propeller and a power supply cable for the right propeller respectively; rear portions of the left propeller and the right propeller are connected to a left angle controller and a right angle controller through a connection cable for the left angle controller and a connection cable for the right angle controller respectively; and the left propeller and the left angle controller are symmetrically distributed left-and-right with respect to the right propeller and the right angle controller. As compared with the prior art, by using angle controllers on the legs, various modes such as advancing, variable-speed advancing, retreating, turning, and in-situ spinning can be implemented. The entire operation process only relies on adjustment of an included angle between the thigh and the calf by the diver, and a control by hand is not required at all.