Slidable Locking Nut for Rapid Screw Engagement
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Solution Overview
Problem
Conventional nut systems are time-consuming to rotate and difficult to operate in limited spaces, especially when dealing with long screw rods or in confined areas like water supply devices, where choosing the right tool or adjusting gestures is inconvenient.
Innovation Solution
A locking and unlocking structure featuring a body with a through hole and semi-circular recess, a slidable block with C-shaped cutout and engaging hook, and threads that adjust pitch by moving between starting and stopping segments, allowing for quick screwing and unscrewing with a screw rod, facilitated by a polygonal retaining section for tool operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a conventional nut is rotated tightly or loosely on a screw rod, then the nut can be secured or loosened, but the operation is time-consuming especially with long screw rods
Solution Approach 1:
The nut structure incorporates a slidable block that can dynamically adjust the effective threading engagement length. By sliding the block along the screw rod, the user can quickly engage or disengage a variable portion of the threads, enabling rapid positioning and securing without rotating the entire nut lengthwise along the screw rod.
Solution Approach 2:
The nut is divided into functional segments: a body portion, a slidable block with C-shaped cutout, and threading sections. The slidable block acts as a separate movable component that segments the threading engagement, allowing independent adjustment of engagement length and position, thereby reducing the time required for securing operations.
2Ease of operation
If a conventional nut is operated in limited space such as water supply devices or pipelines, then the nut can be secured, but the operation is difficult due to limited tool access and space constraints
Solution Approach 1:
The slidable block provides dynamic adjustment capability that allows the user to adapt the nut's engagement characteristics to fit confined spaces. By sliding the block to different positions, the effective engagement length can be reduced for tight spaces or increased when more securing force is needed, providing operational flexibility in limited areas.
Solution Approach 2:
The structure allows changing the engagement parameter (effective threading length) by moving the slidable block. This parameter adjustment enables the same nut to operate effectively in both confined spaces with limited access and larger spaces requiring full engagement, thereby improving ease of operation across different spatial constraints.
Data Source
AI summary
A locking and unlocking nut structure contains a body including a through hole and a semi-circular recess, and the semi-circular recess having a starting segment and a stopping segment, the body further including a diameter-decreased screw section; a slidable block including a C-shaped cutout, and the C-shaped cutout including an engaging hook extending outward from a lower end thereof, the slidable block including first threads, while the slidable block is fixed on the starting segment, a distance from the first threads to an inner wall of the through hole is larger than an outer diameter of the screw rod (tube); while the slidable block is fixed on the stopping segment, a distance from the first threads to the diameter-decreased screw section is equal to the outer diameter of the screw rod (tube); the screw rod (tube) including second threads to match with the diameter-decreased screw section and the first threads.