Telescopic Support Stop Element Design for Construction
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Solution Overview
Problem
The production of telescopic supports in the construction sector is complex and expensive, requiring advanced manufacturing techniques and processes.
Innovation Solution
A telescopic support design featuring a stop element on the outer tube that covers its cross-sectional area, allowing for a simple and cost-effective manufacturing process without complex changes to the inner tube or welding, utilizing a press fit, snap ring, or latching connection, and incorporating an anti-unscrewing device and nub-like projections for enhanced security and resilience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the stop element is formed by a tapered edge section or welded pipe piece, then the pull-out limiter can withstand axial forces, but the production becomes complex and expensive
Solution Approach 1:
The stop element is designed as a simple, inexpensive component that can be easily manufactured and replaced if necessary. Instead of using complex tapered edge sections or welded pipe pieces, the invention employs a straightforward cylindrical stop element with a pressing connection, reducing manufacturing complexity while maintaining functional effectiveness.
Solution Approach 2:
The invention changes the geometric parameters of the stop element from complex tapered shapes to simple cylindrical forms. The stop element features a uniform cross-section with a pressing connection, eliminating the need for complex machining or welding operations while still providing adequate axial load resistance through proper dimensional selection.
2Ease of manufacture
If the stop element covers the free cross-sectional area of the outer tube, then manufacturing is simplified, but the inner tube engagement security must be maintained
Solution Approach 1:
The stop element acts as an intermediary component between the outer tube and inner tube. It provides a pressing connection that secures the inner tube while maintaining simple manufacturing. The stop element's cylindrical design with pressing connection allows for easy assembly without compromising the security of the telescopic engagement.
3Ease of operation
If the stop element is fastened with a press fit, then assembly is simple, but the connection must remain robust under axial forces
Solution Approach 1:
The stop element is designed as a separate, modular component that can be independently manufactured and assembled. The pressing connection allows for simple assembly while the segmented design enables easy replacement or adjustment. The stop element functions as a discrete component rather than an integrated feature, simplifying the overall manufacturing process.
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
The invention relates to a telescopic support (10) for the construction industry, comprising an outer tube (12) and an inner tube (14) axially displaceably arranged therein, said inner tube being secured by means of a fail safe against removal from the outer tube (12). The fail safe comprises a stop element which is arranged on the outer tube (12) and with which at least one stop means (48) arranged on the inner tube (14) can be brought in contact. According to the invention, the stop element is provided in the region of an end (20) of the outer tube (12) and covers the free cross-sectional surface of the outer tube (12) at least partially. The stop element is preferably designed as cap (22) and comprises an internal thread (26) that engages with an external thread (36) of the outer tube (12). The external thread (36) is in engagement with a recessed nut (38) on which a securing pin (40) can be supported, which can be guided through the outer and inner tubes (12; 14) transversely to the longitudinal axis (30) of the telescopic support (10).