Threaded-Rod Assembly for Regulation Membrane Positioning in Air Ducts
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Solution Overview
Problem
Existing air duct systems with regulation membranes face extreme strain and stress during tilting, leading to reduced service life and unreliable positioning due to airflow interactions.
Innovation Solution
An assembly comprising a threaded rod with a transferrable holder and a motor, along with elements for delimiting movement along a single plane, such as a guide rail or another threaded rod, to securely and efficiently position the regulation membrane within the air duct.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the regulation membrane is tilted during operation using a wire shutter, then the air distribution direction can be changed, but extreme strain and stress are exerted on the membrane and mechanism reducing service life
Solution Approach 1:
The patent applies preliminary action by positioning the membrane at the end of the tilting mechanism rather than in the middle. This allows the membrane to be moved into position before airflow acts on it, avoiding extreme strain during tilting operation. The membrane is secured at its front end to the shutter mechanism, which holds it in place during air distribution, eliminating the need for continuous tilting under load.
2Ease of operation
If the wire shutter is rotated to tilt the regulation membrane, then positioning between two end positions is achieved, but considerable stress is exerted on the shutter and pivotable housing
Solution Approach 1:
The shutter mechanism is designed to hold the membrane in fixed end positions rather than requiring continuous tilting. The membrane is secured at the front end to the shutter, which maintains it in a stable position during operation. This eliminates considerable stress on the shutter and housing by avoiding repeated tilting movements under airflow load.
3Adaptability or versatility
If the regulation membrane is attached to a rotating wire shutter, then tilting is achieved, but the membrane ruffles in the airflow causing tensile stress
Solution Approach 1:
The membrane is preliminarily secured at its front end to the shutter mechanism before airflow acts on it. This secure attachment prevents the membrane from ruffling in the airflow, eliminating tensile stress caused by airflow interaction. The shutter holds the membrane in a fixed, stable position during air distribution operation.
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 solution prolongs the service life of the regulation membrane and tilting mechanism by enabling fast, safe, and reliable positioning, reducing stress on the membrane and components during operation.
Implementation Method 1
a threaded rod, a transferrable holder adapted for attaching the regulation membrane and having a through opening provided with an internal thread, said holder being screwed on the threaded rod and being movable along the longitudinal axis of the threaded rod by rotating the threaded rod in the transferrable holder
Data Source
AI summary
Assembly for positioning of a regulation membrane (1) in an air duct, the assembly comprising: a threaded rod (8), a transferrable holder adapted for attaching the regulation membrane (1) and having a through opening provided with an internal thread, said holder being screwed on the threaded rod (8) and being movable along the longitudinal axis of the threaded rod (8) by rotating the threaded rod (8) in the transferrable holder, and at least one element for delimiting the movement of the transferrable holder along a single plane.