Safety Belt Retaining Ring Locking Structure for One-Handed Use
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Solution Overview
Problem
Conventional connecting devices for safety belts at height require complex operation and use of both hands, making it difficult for users to work or hold supports while engaging or disengaging the safety belt, increasing the risk of accidents.
Innovation Solution
A simplified connecting device with a main body, bolt, and locking member featuring a first teeth portion and second teeth portion, allowing single-handed operation by engaging and disengaging the bolt using a rotatable locking member that blocks the bolt's movement when force is applied, enabling easy opening and closing with one hand.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple locking structures are disposed to increase the difficulty of unlocking, then the reliability of the connecting device is improved, but the device complexity and ease of operation deteriorate
Solution Approach 1:
The patent combines multiple locking functions into a single integrated locking structure. The locking bolt integrates the locking engagement, anti-unlocking prevention, and operation control functions that were previously separated into multiple structures. This merging maintains reliability while simplifying the overall device complexity and improving ease of operation.
Solution Approach 2:
The locking bolt is designed as a multi-functional component that performs multiple locking-related functions simultaneously. It provides both the primary locking mechanism and the anti-unlocking prevention feature within a single structure, eliminating the need for separate locking structures and reducing overall device complexity.
2Reliability
If multiple locking structures are disposed to increase the difficulty of unlocking, then the reliability of the connecting device is improved, but the ease of operation deteriorates
Solution Approach 1:
The patent combines multiple locking functions into a single integrated locking structure. The locking bolt integrates the locking engagement, anti-unlocking prevention, and operation control functions that were previously separated into multiple structures. This merging maintains reliability while simplifying the overall device complexity and improving ease of operation.
Solution Approach 2:
The patent extracts and eliminates redundant locking structures from the conventional design, retaining only the essential locking function integrated into the locking bolt. This removal of unnecessary components simplifies the operation process while maintaining the required reliability through the multi-functional design of the remaining locking structure.
3Reliability
If the user has to use two hands to open the connecting device, then the locking reliability is improved, but the ease of operation and productivity deteriorate
Solution Approach 1:
The patent combines multiple locking functions into a single integrated locking structure. The locking bolt integrates the locking engagement, anti-unlocking prevention, and operation control functions that were previously separated into multiple structures. This merging maintains reliability while simplifying the overall device complexity and improving ease of operation.
Solution Approach 2:
The locking bolt incorporates a rotatable operation portion that enables dynamic operation with a single hand. The rotational movement provides mechanical advantage and allows the user to easily actuate the locking mechanism without requiring two hands, thereby improving productivity while maintaining locking security.
Data Source
AI summary
A connecting device of a retaining ring of a safety belt includes a main body, a bolt, and a locking member. The main body is used with the bolt to form an enclosure or not. The bolt passes through a bolt bore of the main body and has a first teeth portion and a stopper located in a first half part of the first teeth portion. The first teeth portion and the locking member are used to control the bolt to lock or to unlock. The locking member could move between a first position and a second position along an axial direction of the locking member and could rotate around a central axis of the locking member. When the bolt is at a closed position and the locking member is at the first position, a second teeth portion of the locking member is meshed with the first half part. When the bolt is at the closed position and the locking member is at the second position, the second teeth portion is meshed with the second half part.