Threaded Adjustment Locking With Internal Push-Button Pin
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Solution Overview
Problem
Existing mechanical systems face challenges in locking and securing threaded adjusting elements, especially in environments with limited space, where traditional locking methods require cumbersome tools and insufficient space for proper mounting.
Innovation Solution
An automatic locking device for threaded adjusting members, featuring a push-button and a deformable spring-loaded pin with lateral legs that lock into notches on the outer element, allowing for secure locking with minimal space and using a simple manual tool.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional locking methods (locknuts, split pins, lock wires) are used to secure threaded adjusting elements, then reliable locking is achieved, but the space required for mounting and maneuvering the locking devices becomes insufficient, especially when specific cumbersome tools are needed
Solution Approach 1:
The locking pin is nested within the internal element's bore, and the push-button is slidably housed within the same bore. The lateral legs of the pin are retained within longitudinal slots in the internal element's wall. This nested arrangement allows all locking components to be contained within the limited space of the adjusting member assembly, eliminating the need for external locking devices that require additional mounting space and cumbersome tools.
Solution Approach 2:
The spring-loaded pin automatically engages with the notches on the outer element to provide locking without requiring external tools or complex mounting procedures. The push-button mechanism allows the operator to manually control the locking and unlocking actions using simple finger pressure, making the system self-sufficient and eliminating dependence on cumbersome external locking tools.
2Reliability
If traditional locking devices are used to secure adjustment operations, then secure locking is achieved, but the complexity of the device increases due to the need for multiple components and cumbersome tools
Solution Approach 1:
The locking function is merged with the adjusting member itself. The locking pin is integrated into the internal element, and the push-button is housed within the same component. This consolidation reduces the number of separate locking components and eliminates the need for external locking tools, thereby reducing device complexity while maintaining secure locking through the pin's engagement with notches on the outer element.
Solution Approach 2:
The internal element serves multiple functions: it provides the threaded adjustment mechanism and simultaneously houses the locking pin and push-button mechanism. The push-button both controls the locking action and indicates the locked state through its protrusion. This multi-functionality reduces the need for separate locking components and tools, simplifying the overall device while ensuring secure adjustment locking.
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 device ensures efficient, stable, and precise locking of mechanical systems, even in confined spaces, by automatically engaging the pin's lateral legs into notches, providing enhanced setting security and allowing for easy and quick locking operations.
Implementation Method 1
a deformable spring-loaded pin provided with lateral legs
Implementation Method 2
a helical spring mounted between the base of the push-button and the cap, and at the center of which extend the lateral legs of the pin
Data Source
AI summary
An automatic locking device for an adjusting member having an external element (2), integral with a mechanical system, provided on its internal wall with a thread and intended to receive a movable internal element (1) provided with an external thread (11) and an internal bore (10), the internal (1) and external (2) elements cooperating by screwing to ensure adjustment of the position of the system, includes a push-button (3) slidably housed in the bore (10) of the inner element (1), covering a deformable spring pin (4) provided with lateral legs which are retained in longitudinal slots (12) formed opposite one another through the wall of the inner element (1) and which, in the relaxed position of the pin, lock into notches (20) formed on the inner wall of the outer element (2).