Biomimetic Turtle With Detachable Limbs and Non-Waterproof Motors
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Solution Overview
Problem
Conventional biomimetic turtles have complex transmission mechanisms requiring waterproof motors, leading to high manufacturing costs and maintenance difficulties due to their intricate structures and multiple motor control systems.
Innovation Solution
A biomimetic turtle design featuring a waterproof housing unit with integrated front and hind limb driving motors, detachable limb modules, and a control unit, utilizing ordinary motors and simplified mechanical design to emulate turtle movements while maintaining waterproof functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional biomimetic turtles use multiple motors and complex transmission mechanisms to control front and hind limbs, then the movement control is achieved, but the device complexity and manufacturing cost increase significantly
Solution Approach 1:
The patent replaces complex mechanical transmission mechanisms (gears, pulleys, link rods) with a direct motor-driven system. Each motor connects directly to the limb module through a simple connector, eliminating the need for intermediate transmission components while maintaining effective movement control of the turtle's limbs.
Solution Approach 2:
The patent divides the limb system into independent modules (front limb modules and hind limb modules) that can be separately controlled by individual motors. This segmentation allows each motor to independently control its corresponding limb module, simplifying the overall control system while maintaining full movement capability.
2Reliability
If waterproof motors are used to protect the motor system from water, then the waterproof function is achieved, but the manufacturing cost increases significantly
Solution Approach 1:
The patent extracts the motors from the waterproof environment by placing them in the waterproof cavity above the waterline. The motors remain outside the waterproof compartment, connected to the submerged limb modules through waterproof connectors, thus eliminating the need for expensive waterproof motors while maintaining waterproof reliability.
Solution Approach 2:
The patent introduces waterproof connectors as intermediaries between the non-waterproof motors and the waterproof limb modules. These connectors transmit mechanical motion and electrical signals while maintaining the waterproof barrier, allowing ordinary motors to control submerged components without direct water exposure.
3Ease of operation
If multiple motors and complex transmission mechanisms are used in front and hind limbs, then the movement control is precise, but the maintenance difficulty increases
Solution Approach 1:
The patent segments the limb system into independent, detachable modules that can be easily removed and replaced. Each limb module is controlled by its own motor, allowing individual module maintenance or replacement without affecting other parts of the system, thus reducing overall maintenance difficulty while preserving precise movement control.
Data Source
AI summary
A biomimetic turtle includes a waterproof housing unit, front and hind limb driving motors, and front and hind limb modules. The waterproof housing unit includes a waterproof casing defining a waterproof space therein, and having front and hind limb connecting holes in fluid communication with the waterproof space, and front and hind limb connectors connected respectively to the front and hind limb connecting holes. Each front limb driving motor includes a front limb driving shaft connected to a respective one of the front limb connectors. Each hind limb driving motor includes a hind limb driving shaft connected to a respective one of the hind limb connectors. The front and hind limb modules are connected respectively and detachably to the front and hind limb connectors, and are driven respectively by the front and hind limb driving motors via the front and hind limb connectors as being controlled by a control unit.