Self-Locking Hook With Press-Button Release Against Unlatching
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Solution Overview
Problem
Conventional hooks, such as Bolt Snap Hooks and Carabiner Hooks, are prone to unexpected unlatching due to rotation offset or latch being pressed back by attached objects, posing safety risks and requiring complex structures for lockable hooks.
Innovation Solution
A self-locking hook design featuring a hook base, lock hook, and press-button mechanism with a two-stage action of pressing and rotating to maintain a locked state, utilizing a spring and elastic arm for automatic relocking, preventing unexpected opening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional hooks (Bolt Snap Hook or Carabiner Hook) are used, then the structure is simple and easy to operate, but the hook is prone to unexpected unlatching due to rotation offset or latch being pressed back by attached objects
Solution Approach 1:
The patent applies preliminary anti-action by designing a locking mechanism that proactively prevents unlatching before it can occur. The locking bolt and locking groove are positioned to preemptively counteract forces that would cause rotation offset or latch depression, thereby preventing unexpected opening while maintaining operational simplicity
Solution Approach 2:
The hook employs self-service through its automatic locking mechanism. When the hook arm engages with the loop, the locking bolt automatically enters the locking groove without requiring additional user action, providing reliable anti-unlatching protection while keeping the structure simple and easy to operate
2Reliability
If lockable hooks are designed to prevent unexpected unlatching, then the reliability improves, but the structure becomes complex leading to inconvenient assembly and difficult operation
Solution Approach 1:
The patent merges the locking and unlocking functions into a single integrated mechanism. The pressing button simultaneously controls the locking bolt's engagement and disengagement, allowing users to maintain reliability while achieving simple, convenient operation through a unified control interface
Solution Approach 2:
The design extracts the complex internal locking mechanism from the user's direct control path. The automatic locking occurs through the natural engagement of the hook arm with the loop, while the user only needs to press a simple button for unlocking, separating the reliable automatic locking function from the minimal user action required
3Reliability
If a locking mechanism is added to prevent unexpected opening, then the safety improves, but the assembly process becomes inconvenient
Solution Approach 1:
The patent segments the hook into modular components: the hook body, locking mechanism, pressing button, and decorative cap. This segmentation allows each component to be manufactured and assembled independently, improving ease of manufacture and assembly while incorporating the safety-enhancing locking mechanism
Solution Approach 2:
The locking mechanism components are nested within the hook body structure. The locking bolt, locking groove, and spring are integrated into the existing hook architecture, allowing the safety mechanism to be incorporated without significantly increasing assembly complexity or requiring separate assembly procedures
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
The self-locking hook effectively reduces the likelihood of unintended unlatching, enhances safety, and simplifies operation with a more rational design, allowing quick unlocking in emergencies.
Implementation Method 1
a spring is disposed inside the insertion hole, the spring is pressed upon the front end of the pressing arm, when the press-button is pressed down, the spring is compressed
Implementation Method 2
the elastic arm is mounted inside the mounting slot and is pressed upon the bottom surface of the support arm to push the lock hook to maintain the locked state
Data Source
AI summary
What is disclosed in the present invention is a self-locking hook to avoid unexpected opening. When a press-button is pressed down, a spring is compressed, a pressing arm and an axle pin are completely inserted into an insertion hole, at this point, the axle pin leaves a transverse clipping position and forms an openable state with a support arm, in which they can rotate along the curved slide rail in a mounting slot. An elastic arm is mounted inside the mounting slot and is pressed upon the bottom surface of the support arm to push a lock hook and maintain the locking state between a lock arm and a hook arm. The lock hook be rotated only when the press-button is pressed down. The present invention can avoid direct opening of the lock hook under a pressing force, thus preventing unexpected opening and loosening of the hook.