Eccentric Locking Mechanism for Quick Release Lifting Tool
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Solution Overview
Problem
Lifting heavy objects such as metal plates and boxes is difficult and unsafe due to their weight, and existing lifting tools face challenges in attachment and detachment, especially when access is limited by panels or casings.
Innovation Solution
A quick release lifting tool with a locking arrangement featuring a shaft with an eccentric structure and a pin that rotates to lock and unlock objects within a gripping cavity, allowing for easy attachment and detachment by adjusting the retention force using an actuating member.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional lifting tool is used to securely retain heavy objects, then the lifting reliability is improved, but the attachment and detachment operation becomes difficult and time-consuming in confined spaces
Solution Approach 1:
The lifting tool employs a dynamic locking mechanism where the pin can be easily moved between locked and unlocked positions through the actuating member. The eccentric structure converts rotational motion into linear motion of the pin, enabling quick release while maintaining secure retention during lifting operations.
Solution Approach 2:
The pin acts as an intermediary element between the eccentric structure and the object to be lifted. By moving the pin through the actuating member, the operator can control the locking and unlocking actions without directly manipulating complex mechanisms, simplifying the operation in confined spaces.
2Force
If the pin is biased to extend into the gripping cavity for secure locking, then the retention force on the object is increased, but the mechanism complexity increases
Solution Approach 1:
The spring-loaded pin automatically extends into the gripping cavity to engage with the object, providing secure retention without requiring additional actuation. The biasing force is automatically applied, and the pin self-adjusts to maintain engagement during lifting operations.
Solution Approach 2:
The pin is designed to be movable rather than fixed, allowing it to dynamically adjust its position. The spring provides continuous biasing force to maintain engagement, while the actuating member can override this bias when release is needed, creating a simple yet effective force application mechanism.
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 safe and efficient lifting of heavy objects by providing a secure grip that can be easily released, facilitating the handling of heavy metal sheets and blocks within confined spaces.
Implementation Method 1
The shaft and the eccentric structure are configured to rotate about a longitudinal axis. The pin is configured to engage with the eccentric structure and lock the object within the gripping cavity.
Data Source
AI summary
A lifting tool for gripping an object, is provided. The lifting tool includes a body and a locking arrangement. The body defines a gripping cavity for receiving the object. The locking arrangement lock the object within the gripping cavity. The locking arrangement includes a shaft having an eccentric structure and a pin. The shaft and the eccentric structure are configured to rotate about a longitudinal axis. The pin is configured to engage with the eccentric structure and lock the object within the gripping cavity. The pin is biased in a first position, where a portion of the pin extends into the gripping cavity and locks the object within the gripping cavity.