Wall Feedthrough Suction Port With Front-Side Spring Fixing
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Solution Overview
Problem
Existing methods for attaching suction points in suction particle detection systems are complex, prone to errors, and require multiple assembly steps, often necessitating access to the back of the wall or ceiling structure, which increases installation costs and susceptibility to errors.
Innovation Solution
A wall or ceiling bushing with deflectable springs that allows for fixation from the visible side, eliminating the need for additional retaining devices and simplifying the installation process by using a one-piece design with integral springs that exert a spring force to secure the bushing within the through opening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional fastening methods with lock nuts and flange covers are used, then the suction point can be securely fixed, but access to the back of the wall or ceiling is required, increasing installation complexity and time
Solution Approach 1:
The patent inverts the traditional fastening approach by moving the fastening mechanism from the back side to the front side of the wall/ceiling. The cam-actuated fastening means is operated from the visible side, eliminating the need for back access while maintaining secure fixation. This inversion fundamentally changes the installation procedure from rear-access to front-access operation.
Solution Approach 2:
The patent extracts the fastening operation from the back side of the wall/ceiling and relocates it to the front side. By taking out the need for back access entirely, the invention simplifies installation while maintaining fixation reliability. The cam mechanism and actuating means are specifically designed to perform fastening functions from the visible side only.
2Reliability
If multiple assembly steps with retaining devices and hollow sockets are used, then secure connection is achieved, but assembly time and error susceptibility increase
Solution Approach 1:
The patent merges multiple separate components (retaining device, hollow socket, flange cover) into an integrated one-piece wall or ceiling duct. The cam-actuated fastening means is combined with the duct body, eliminating the need for separate assembly steps. This merging maintains connection security while dramatically improving assembly speed and reducing error susceptibility.
Solution Approach 2:
The cam-actuated fastening means is pre-configured within the one-piece duct structure, with the cam lobes and actuating means already positioned and configured for immediate operation. This preliminary preparation eliminates the need for on-site assembly of fastening components, allowing installers to simply operate the actuating means from the front side.
3Ease of manufacture
If the flange cover diameter is larger than the through-opening, then the opening is completely covered, but the fastening structure becomes more complex
Solution Approach 1:
The patent merges the flange cover function directly into the duct body as an integrated collar section. This one-piece construction eliminates the need for separate flange covers while maintaining aesthetic coverage. The collar section is formed as part of the molded duct, providing clean appearance without adding fastening structure complexity.
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
Enables simpler, more flexible, and error-free installation of suction points without requiring access to the back of the wall or ceiling, reducing assembly time and costs while ensuring a secure fluid-conducting connection.
Implementation Method 1
the fastening means has one or more deflectable springs by means of which, in an operating position of the wall or ceiling duct fluidically connected to a pipe or hose end of the intake particle detection system, a spring force directed orthogonally to the collar section in the direction of the second pipe end can be exerted on the rear side of the wall-like or ceiling-like spatial structure
Data Source
Figure 1
Figure 2~3
Figure 4a~4b
AI summary
A suction particle detection system having a wall or ceiling feed-through (100) for fluidically connecting a pipe or hose end (200) to a test environment (300), the wall or ceiling feedthrough (100) comprising a line portion (110), which has a first line end (111) for fluidically connecting to the pipe or hose end (200) of the suction particle detection system and a second line end (112) arranged opposite the first line end (111), wherein the second line end (112) is formed with a suction opening (113), having a fastening means (120) for fixing the wall or ceiling feedthrough (100) within a feedthrough opening (320) of a wall-like or ceiling-like room structure (310), and having a flange-like collar portion (114), which extends starting from the second line end (112) in the radial direction, the fastening means (120) having one or more deflectable springs (121).