Adjustable Ratchet Tie Down with Sliding Movable Shaft
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Solution Overview
Problem
Conventional tie-down ratchets have a non-adjustable mainframe position relative to the goods, leading to inconvenient binding operations and potential safety hazards due to interference with other objects or instability.
Innovation Solution
An adjustable tie-down ratchet design featuring a positional base with adjusting grooves and a movable shaft that allows the mainframe to be positioned relative to a hook, enabling the binding strap to be wound around either the fixed or movable shaft depending on the adjustment position, facilitating flexible positioning and tensioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the mainframe position is fixed relative to the hook on the short binding strap, then the structure is simple, but the position of the mainframe is non-adjustable relative to the goods, causing inconvenient binding operations and potential safety hazards
Solution Approach 1:
The patent applies the dynamics principle by transforming the fixed mainframe structure into an adjustable one. The movable shaft can slide along the binding strap within limiting blocks, allowing the mainframe position to be dynamically adjusted according to different binding needs. After adjustment, the locking mechanism fixes the position, providing both adaptability and structural stability.
2Reliability
If the mainframe position is non-adjustable, then the structure is stable, but the mainframe may interfere with other articles or become unstable, creating safety hazards
Solution Approach 1:
The movable shaft with sliding capability along the binding strap allows operators to adjust the mainframe position to avoid interference with other articles. The limiting blocks prevent excessive movement, ensuring the position remains stable during binding operations, thus both improving ease of operation and maintaining reliability.
3Ease of operation
If the binding strap is wound around only the main rotating shaft, then the structure is simple, but the binding strap cannot be effectively tensioned or positioned
Solution Approach 1:
The patent applies segmentation by dividing the shaft system into multiple components: the main rotating shaft for tensioning and the movable shaft for positioning. The binding strap is wound around both shafts, with the movable shaft providing additional contact points to improve tensioning effectiveness and enable precise positioning, while the modular design keeps overall complexity manageable.
Data Source
AI summary
An adjustable tie-down ratchet includes a mainframe and a binding strap, wherein the mainframe includes an adjusting buckle, a handle and a transmission mechanism; a fixed shaft and a movable shaft are arranged on the rear part of the adjusting buckle for connecting the binding strap; an adjusting groove is formed at the rear part of the adjusting buckle; each adjusting groove defines a locking position and a adjusting position; the movable shaft can movably sliding in the adjusting grooves, and the fixed shaft is fixed below the adjusting grooves. In the present invention, the binding strap is movably connected with the mainframe, so that the position of the mainframe can be adjusted according to needs under different usage conditions, the operation is convenient, and the overall device is simple and practical.