Split Trailer Shackle Locking Structure for Hook Strength
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Solution Overview
Problem
Existing split trailer shackles lack a secure connection structure between the main and secondary hooks, resulting in lower strength and safety concerns due to independent operation of the hooks after closure.
Innovation Solution
A split trailer shackle design featuring a bolt with rotatable hooks, a reinforcing assembly with a rotating shaft and positioning seat, and permanent magnets to enhance connection strength and convenience by allowing separation without disassembly and secure locking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the split trailer shackle uses two independent hooks that can be opened separately for convenience, then the ease of operation is improved, but the strength and reliability deteriorate because the hooks lack a connection structure
Solution Approach 1:
The patent combines two independent hooks into a single integrated structure where the main hook and secondary hook are connected through a shared wall and positioning mechanisms. This merging ensures that when one hook is opened, the other remains constrained, maintaining overall structural integrity while still allowing convenient access for slinging operations.
Solution Approach 2:
The patent implements a dynamic locking mechanism where the positioning blocks can slide along the slot to lock or unlock the hooks. The spring-loaded positioning blocks automatically engage with the slot to secure the hooks in closed position, while allowing controlled opening when needed. This dynamic system maintains reliability during normal use while enabling ease of operation when required.
2Adaptability or versatility
If the pin body is disassembled for connecting the trailer rope, then the adaptability is improved, but the loss of time increases due to repeated disassembly
Solution Approach 1:
The patent segments the shackle into two functional hooks (main hook and secondary hook) that can be independently opened and closed. This segmentation allows the user to open only the secondary hook for slinging operations while the main hook remains closed and secure, eliminating the need to disassemble the entire pin body and reducing the time required for repeated connections.
3Ease of operation
If the two hooks are closed independently without a connection structure, then the ease of operation is improved, but the strength deteriorates resulting in lower safety
Solution Approach 1:
The patent employs asymmetric design where the main hook and secondary hook have different functions and opening mechanisms. The main hook has a fixed structure that provides the primary load-bearing path, while the secondary hook can be opened independently for slinging. This asymmetric configuration allows independent operation of the secondary hook while the main hook maintains structural integrity and provides the primary strength foundation.
Solution Approach 2:
The patent incorporates spring-loaded positioning blocks that are pre-loaded to automatically engage with the slot when the hooks are closed. This preliminary action ensures that the hooks are securely locked in the closed position before any load is applied, maintaining structural strength while allowing easy opening when needed. The spring force pre-positioning the locking mechanism eliminates the need for manual locking operations.
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
Facilitates easy connection and secure locking of the trailer rope with enhanced structural strength and safety through the use of positioning blocks, bumps, and magnetic attraction, ensuring the main and secondary hooks remain aligned and securely connected.
Implementation Method 1
two permanent magnets are magnetic adsorbed to facilitate the main hook and the secondary hook suction
Data Source
AI summary
A split trailer shackle is disclosed, including a bolt and a reinforcing assembly. The bolt includes a rod body, a middle of the rod body is rotatablely connected with a main hook, and an upper surface of a front end of the main hook is symmetrically provided with positioning blocks; a left end of the rod body is rotatablely connected with a secondary hook, the positioning blocks are detachably inserted with a slot at a front of the secondary hook respectively, and a right end of the bolt is threaded with a nut. The reinforcing assembly includes a rotating shaft and a positioning seat, the rotating shaft is disposed in a middle of the main hook. The reinforcing assembly further includes posts. The split trailer shackle is easy to open and thus can quickly sling, meanwhile it also can be closed for lock, and the use of high security.