Wall Duct Connection Device One-Sided Assembly
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Solution Overview
Problem
Existing connection devices for wall ducts and bulkheads require simultaneous installation from two sides, making them difficult to install, especially in confined spaces, and often necessitate two people for proper alignment and locking.
Innovation Solution
A connection device comprising two separate parts: a mounting part with insertion-limiting contact elements and holding means for secure wall penetration, and a connector part that can be easily plugged into the mounting part, allowing for one-sided assembly and secure locking without the need for additional retaining elements from the other side.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a connection device is designed as a single integrated piece for wall duct installation, then the structural integrity is improved, but the installation complexity increases requiring simultaneous access from two sides
Solution Approach 1:
The connection device is divided into two separate parts: a mounting part that is installed in the wall opening and a connector part that is connected to the mounting part. This segmentation allows the mounting part to be installed from one side only, eliminating the need for simultaneous two-sided access, while maintaining structural integrity through the connection between parts
2Reliability
If retaining means are installed as separate parts from the other side of the wall, then the locking reliability is improved, but the installation time increases due to requiring two people
Solution Approach 1:
The mounting part is designed with integrated holding means that are already positioned and configured before installation. When the mounting part is inserted into the wall opening, the holding means automatically engage with the wall structure, eliminating the need for a second person to install retaining elements from the other side and reducing installation time while maintaining locking reliability
3Ease of operation
If the connection part is divided into multiple separate parts, then the ease of assembly is improved, but the device complexity increases
Solution Approach 1:
The connection device is segmented into a mounting part and a connector part with clear functional differentiation. The mounting part contains integrated holding means for wall mounting, while the connector part provides connection functionality. This segmentation simplifies assembly by allowing sequential installation but maintains low device complexity through functional integration within each part
Solution Approach 2:
Within each separate part, multiple functions are merged: the mounting part combines mounting functionality with integrated holding means, and the connector part combines connection functionality with coupling mechanisms. This merging reduces the overall number of components needed while maintaining ease of assembly
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
Facilitates easy and quick assembly of the connection device, reducing installation complexity and the need for multiple personnel, while allowing for secure locking and media line connections, with the option for pre-assembly of the mounting part before inserting the connector part.
Implementation Method 1
the retaining means for locking the connecting part in the feed-through opening of the wall element being formed by latching means of the mounting part, which can be guided through the feed-through opening in such a way that they automatically engage behind the wall element in a locking manner for locking. The latching means preferably consist of at least two elastic latching arms, which are moved elastically inwards in the manner of barbs when inserted into and passed through the through-opening and then spring back outwards
Data Source
Figure 1~5
Figure 6~7
Figure 8
AI summary
The invention relates to a connection device (1) for a wall duct, in particular for arranging in a lead-through opening (2) of a wall element (4) and for connecting at least one fluid line (6). Said fluid line (6) consists of a connecting part (8) having a first connecting section (10) that is to be lead through the lead-through opening (2) and an opposite second connecting section (12) with a contact element (14) for limiting the mounting contact with the wall element (4) and holding means (16) for maintaining the connecting part (8) in the mounted position when mounted in the lead-through opening (2). The connecting part (8) consists of at least two separate parts which are a mounting part (18) for maintaining in the lead-through opening (2) of the wall element (4) and a connecting element (20) that can be connected to the mounting part (18) and that comprises the connecting sections (10, 12).