Preassembled Fixing Devices for Composite Wall Insulation
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Solution Overview
Problem
Conventional construction methods for composite walls are labor-intensive and time-consuming due to multiple measuring and drilling steps required for attaching thermal insulation and cover plates.
Innovation Solution
A construction method using fixing devices with main rods and housings to attach thermal insulation layers to formworks, followed by pouring a to-be-cured material and installing cover plates, reducing the need for drilling and grinding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional construction method with multiple measuring and drilling steps is used, then thermal insulation layer can be attached to wall, but construction process becomes labor-intensive and time-consuming
Solution Approach 1:
The fixing device is pre-assembled with the housing, blocking plate, and positioning unit in a predetermined configuration before use. This preliminary preparation eliminates the need for on-site measuring, drilling, and assembly steps, allowing workers to simply insert the pre-assembled fixing device through the thermal insulation layer and outer formwork, thereby significantly improving construction efficiency while maintaining reliable attachment.
2Manufacturing precision
If multiple measuring and drilling steps are performed, then fixing members can be installed, but labor intensity increases
Solution Approach 1:
The fixing device performs multiple functions simultaneously: the positioning unit with positioning protrusions automatically positions the fixing device within the housing, the blocking plate blocks the rod portion to prevent displacement, and the entire assembly guides the rod through the thermal insulation layer and outer formwork. This self-positioning and self-aligning mechanism eliminates the need for complex measuring and drilling operations, making the installation process simple while maintaining high positioning precision.
3Strength
If conventional construction method is used, then wall structure can be formed, but construction time increases
Solution Approach 1:
The fixing device merges multiple functional components into a single integrated unit: the housing, blocking plate, positioning unit, and rod are combined into one assembly that performs attachment, positioning, and structural reinforcement simultaneously. This merging of functions allows the thermal insulation layer to be secured to the outer formwork in a single operation, eliminating the need for separate measuring, drilling, and fixing operations, thereby reducing construction time while maintaining wall structure strength.
Data Source
AI summary
A construction method includes steps of: using a plurality of fixing devices to extend through a thermal insulation layer and an outer formwork to attach the thermal insulation layer to the outer formwork, wherein, each of the fixing devices projects out of the thermal insulation layer and the outer formwork; respectively disposing an inner formwork and the outer formwork to which the thermal insulation layer is attached at two sides of a support frame layer, wherein, the thermal insulation layer faces the support frame layer; pouring a to-be-cured material into the support frame layer; removing the inner formwork and the outer formwork from the support frame layer; respectively disposing a plurality of external brackets on portions of the rod portions of the fixing devices that project out of the thermal insulation layer; and installing a plurality of outer cover plates on the external brackets.