One-Sided Wall Feed-Through Element with Radially Springable Projections
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Solution Overview
Problem
Existing wall feed-through elements require access from both sides of the wall for installation, making the process time-consuming due to the need for screwing a nut onto an external thread.
Innovation Solution
A wall feed-through element with a bearing section featuring radially springable projections and shapings that allow for one-sided installation by inserting the element through a pass-through opening and rotating it to engage the projections with recesses in the wall, preventing further rotation and ensuring secure attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a nut is screwed onto an external thread for securing the wall feed-through element, then reliable attachment is achieved, but installation time increases and access from both sides of the wall is required
Solution Approach 1:
The nut is extracted from the system and replaced by a pressing element that is integrated into the wall feed-through element. This eliminates the need for a separate fastening component and allows for one-sided installation while maintaining secure attachment through the pressing element's engagement with the wall opening.
Solution Approach 2:
The pressing element automatically engages with the wall opening through a cam-like motion during insertion. The element's own insertion motion generates the locking action, eliminating the need for separate fastening operations. The pressing element self-secures the wall feed-through element in place during the insertion process.
2Ease of manufacture
If access from both sides of the wall is provided for installation, then proper securing is possible, but installation complexity increases
Solution Approach 1:
Instead of requiring access from both sides to secure the element, the design inverts the approach by enabling secure attachment from one side only. The pressing element engages with the wall opening from the front side, eliminating the need for back-side access while maintaining secure attachment.
Solution Approach 2:
The pressing element is designed with specific local features (cam surface, pressing surface) that concentrate the fastening action at a specific location within the wall opening. This localized engagement mechanism enables secure attachment without requiring access to other areas of the wall.
3Reliability
If a seal is pressed against the wall by a stop, then sealing is achieved, but the sealing force depends on manual tightening
Solution Approach 1:
The seal is self-actuated through the insertion motion of the wall feed-through element. As the element is inserted, the pressing element automatically presses the seal against the wall opening, eliminating the need for manual tightening operations. The sealing force is generated automatically during insertion.
Solution Approach 2:
The seal is pre-positioned in the sealing recess before insertion. The insertion motion itself performs the sealing action by pressing the seal against the wall opening through the pressing element, preparing the sealed connection in advance of any final tightening or securing steps.
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
This method significantly reduces installation time and prevents the element from being removed, allowing for secure and efficient fluid feed-through with minimal tools and reduced costs.
Implementation Method 1
at least one radially springable projection which is offset in a circumferential direction with respect to the shaping and protrudes towards the stop in an axial direction across from the back wall
Data Source
AI summary
Wall feed-through element for a fluid line that includes a housing having a feed-through region running in an axial direction with at least one attachment geometry and a stop. The feed-through region is structured with a bearing section and the connection geometry, on a side of the bearing section facing away from the stop at least one, includes at least one shaping protruding radially over the bearing section with a back wall facing the stop and at least one radially springable projection that is offset in a circumferential direction with respect to the shaping and extends toward the stop in an axial direction and beyond the back wall.