Adjustable Plaster Profile Strip for Thermal Insulation
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Solution Overview
Problem
Existing plaster profile strips for sprayable thermal insulation often result in hidden defects, thermal bridges, and high production costs due to the use of improvised aids like soft fiber insulation boards, metal profiles, or wooden slats, and suffer from contamination issues with open grooves that impede leg insertion.
Innovation Solution
A plaster profile strip with an adjustable leg and foot part featuring a tongue and groove connection, allowing for precise adaptation to different insulation thicknesses and even substrate surfaces, eliminating the need for expensive tools and reducing thermal bridges by being fully embedded in insulation, with optional holes for secure fastening and butt connectors for longer elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If improvised aids such as soft fiber insulation boards, metal profiles, or wooden battens are used to finish plaster edges, then plaster edges can be completed, but hidden defects, thermal bridges, and high manufacturing and installation costs occur
Solution Approach 1:
The plaster profile strip combines the base profile and the leg into a single integrated component made of the same material, eliminating the need for separate improvised aids. The leg is formed as one piece with the base, creating a unified structure that eliminates thermal bridges and hidden defects while reducing manufacturing and installation costs.
Solution Approach 2:
The entire plaster profile strip is made from a single material (plaster or gypsum) without mixing different materials like metal profiles, wooden battens, or soft fiber insulation boards. This homogeneous construction ensures uniform thermal properties and eliminates the thermal bridges that occur at material interfaces.
2Ease of operation
If an open groove is provided in the base for leg insertion, then the leg can be inserted, but contaminants penetrate the groove hindering insertion
Solution Approach 1:
The groove is pre-filled with a blocking element during manufacturing, which prevents contaminants from penetrating into the groove during storage and transport. This preliminary action protects the groove before the leg insertion operation occurs, ensuring clean insertion while maintaining ease of operation.
3Adaptability or versatility
If the leg is made adjustable relative to the base, then adaptation to different insulation thicknesses is enabled, but device complexity increases
Solution Approach 1:
The plaster profile strip is divided into two separable parts: the base profile and the leg. The leg can be detached from and reattached to the base at different positions, allowing adjustment of the effective height. This segmentation provides adaptability to different insulation thicknesses while keeping the overall device relatively simple through modular design.
Solution Approach 2:
The connection between the leg and base is designed to be dynamically adjustable rather than fixed. The leg can be positioned at different distances from the base and secured in place, enabling the profile strip to adapt to varying insulation thicknesses. This dynamic capability is achieved through a simple adjustable connection mechanism that does not significantly increase device complexity.
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
A plaster profile strip (1) adaptable to the thickness of a sprayable thermal insulation comprises a base (2) and a leg (5). The leg (5) is frictionally fitted onto a rib (4) of the base (2) by means of a groove (6) provided on it, with the desired distance of its free edge (14), which serves as a plaster edge, from the base (2) corresponding to the thickness of the thermal insulation.