Electromechanical Telescopic Column With Internal Sand-Resistant Locking

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Solution Overview

Problem

Existing electromechanical telescopic columns have locking mechanisms that are externally exposed, making them susceptible to environmental degradation and compromised by atmospheric agents, particularly in desert conditions, and the locking mechanism is complex and prone to failure due to sand interference.

Innovation Solution

The telescopic column assembly locks tubular members from the inside towards the outside, using horizontal latches that translate from an unlocked to a locked position via elastic members, and incorporates sealing members to protect against environmental agents, ensuring the locking mechanism is internal and protected.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the locking mechanism uses externally projecting rings and horizontal latches, then the locking function is achieved, but the mechanism becomes exposed to environmental degradation and atmospheric agents

Engineering Contradiction:

Improvelocking functionVSAvoidenvironmental degradation

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent inverts the conventional locking mechanism design by moving the locking function from external rings and latches to internal vertical latches that engage from the inside outward. This inversion protects the locking mechanism from environmental exposure while maintaining its locking function, directly resolving the contradiction between reliability and environmental susceptibility.

Inventive Principle:

Principle #13The other way round (Inversion)

Solution Approach 2:

The locking mechanism is nested within the tubular structure itself, with vertical latches integrated into the walls of the tubular members. This nesting approach eliminates the need for external projecting rings, protecting the locking components from atmospheric agents like sand and moisture while maintaining structural integrity.

Inventive Principle:

Principle #7Nested doll (Nesting)

2Reliability

If the horizontal latch system is used for locking, then the locking mechanism is achieved, but the complexity increases and susceptibility to sand interference occurs

Engineering Contradiction:

Improvelocking functionVSAvoidlocking mechanism complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces the complex horizontal latch system with a simpler vertical latch mechanism that engages from the inside outward. This simplification reduces the number of moving parts and eliminates the complex ring structures, directly addressing the contradiction between achieving reliable locking and reducing mechanism complexity.

Inventive Principle:

Principle #13The other way round (Inversion)

Solution Approach 2:

The patent extracts and eliminates the horizontal latch components and projecting rings from the design, retaining only the essential vertical latch elements integrated into the tubular walls. This extraction reduces complexity while maintaining the core locking function, resolving the contradiction between reliability and simplicity.

Inventive Principle:

Principle #2Taking out (Extraction)

3Reliability

If radially projecting rings are used for locking, then the locking engagement is achieved, but the slim profile is compromised

Engineering Contradiction:

Improvelocking engagementVSAvoidslim profile

Core Design Contradiction:

ReliabilityVSShape

Solution Approach 1:

The locking mechanism is nested within the tubular wall structure, with vertical latches integrated into the walls rather than projecting externally. This nesting approach maintains the slim profile of the telescopic column while achieving reliable locking engagement through the internal latch mechanism.

Inventive Principle:

Principle #7Nested doll (Nesting)

Solution Approach 2:

Instead of projecting locking elements outward, the patent inverts the approach by having locking elements engage from the inside outward. This inversion eliminates radially projecting rings, preserving the slim profile while maintaining effective locking engagement between tubular members.

Inventive Principle:

Principle #13The other way round (Inversion)

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 solution provides a robust and reliable locking mechanism that is protected from external elements, maintaining functionality in harsh environments and preventing sand interference, while maintaining a slim profile without radially projecting parts.

Implementation Method 1

unlocked position in which the elastic member moves the horizontal latch

Methodology Applied

Scientific EffectElasticity: Elasticity

Data Source

PatentEP4430257B1Electromechanical telescopic column assembly

Publication Date: 2025.08.27 FIRECO SRL A SOCIO UNICO

Figure 1~1a
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AI summary

The present invention relates to an electromechanical telescopic column assembly (1) which comprises a base (2), movement means (3) comprising a driving screw (30), and a plurality of tube assemblies (4) which may be configured telescopically between a compact configuration and an extended configuration. This plurality of tube assemblies (4) comprises a head tube assembly (5), a main intermediate tube assembly (7) and a base tube assembly (8). The head tube assembly (5) comprises a head tubular member (50) and a head piston (51) which may be engaged with the driving screw (30). The head piston (51) in turn comprises a head horizontal latch (53). The main intermediate tube assembly (7) comprises a main intermediate tubular member (70) and a main intermediate piston (71) engaged with the driving screw (30). Finally, the base tube assembly (8) comprises a base tubular member (80).