Insulation Plate Dowel with Spring-Loaded Cover Plate
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Solution Overview
Problem
Existing methods for mounting insulating boards on substructures using plate dowels are not dust-free and do not provide adequate insulation, as they require separate collecting devices and may not effectively seal the countersunk holes, leading to compromised insulation and potential dust dispersal.
Innovation Solution
A method where a cover plate is kept under tension by a spring element during the insertion of the plate dowel, creating a sealed air space and using a tool with a pressure plate and depth stop to ensure the cover plate is flush with the surface, allowing for improved insulation and dust-free operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a separate collecting device is used to collect milled insulation material, then dust dispersal is prevented, but device complexity increases and insulation performance is compromised
Solution Approach 1:
The cover plate is integrated directly into the plate dowel assembly, merging the sealing function with the fastening component. This eliminates the need for separate collecting devices while maintaining dust containment through the sealed countersunk hole design.
Solution Approach 2:
The cover plate serves multiple functions simultaneously: it seals the countersunk hole to prevent dust dispersal, provides thermal insulation by covering the metal fastening elements, and maintains structural integrity of the assembly. This multi-functionality eliminates the need for separate specialized devices.
2Object-affected harmful factors
If the cover plate is pressed against the holding plate during insertion, then insulation performance is improved and dust is sealed, but the covering process becomes more complex
Solution Approach 1:
The spring element is pre-loaded in the tool housing before the insertion process begins. This preliminary preparation ensures that the cover plate is immediately pressed against the holding plate when insertion starts, maintaining sealing and insulation performance throughout the process without requiring additional steps.
Solution Approach 2:
The spring element automatically maintains pressure on the cover plate throughout the insertion process and continues to do so after the tool is removed. This self-sustaining mechanism ensures continuous sealing and insulation performance without requiring external intervention or complex control systems.
3Strength
If the plate dowel is driven deep into the insulating material, then anchoring strength is improved, but insulation performance may be compromised
Solution Approach 1:
The metal plate dowel and expansion elements, which would normally create thermal bridges and reduce insulation performance, are enclosed within the sealed countersunk hole covered by the insulating cover plate. This converts the potential harmful thermal conduction into a beneficial sealed environment that maintains both anchoring strength and insulation performance.
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 allows for countersinking the plate dowel with improved insulation properties, creating an air cushion that enhances the heat transfer coefficient and prevents dust dispersal, eliminating the need for separate collecting devices and ensuring the cover plate remains flush with the surface.
Implementation Method 1
at least until the penetration depth corresponding to the thickness of the cover plate is reached, being acted upon by a spring element
Implementation Method 2
an insulating air space is formed between the holding plate and the cover disk remaining in the countersunk hole of the insulating material
Data Source
Figure 1a~1b
Figure 2
Figure 3
AI summary
The method involves permanently holding a covering disk (22) on tension at a retaining plate (4) of a plate dowel during pushing of the plate dowel into an insulation material till to reaching of a penetration depth corresponding to thickness of the disk, where the disk is turned towards an insulation plate (3). A sink hole (25) formed in front of the retaining plate is sealed outwardly by the disk that is pressed at an outer edge area of the retaining plate. An insulated hollow chamber (24) is formed between the retaining plate and the sealed disk staying in the sink hole. Independent claims are also included for the following: (1) a tool comprising a screw bit for mounting an insulation plate at a substructure (2) a covering disk for closing a sink hole.