Pouring Work Box Central Attachment Pin Shuttering
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Solution Overview
Problem
Existing pouring work boxes require drilling multiple holes in shuttering walls for attachment pins, which is cumbersome and requires precise hole diameter matching, making secure attachment challenging during concrete pouring.
Innovation Solution
A pouring work box design with an external attachment pin projecting from the lid's center, allowing for a single central hole to be drilled, and using a support to transfer impact forces for secure anchoring, simplifying the attachment process and eliminating the need for additional aids.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple attachment pins are used on the pouring work box, then the securing reliability is improved, but the device complexity and installation difficulty increase
Solution Approach 1:
The patent merges multiple attachment functions into a single central attachment pin located at the center of the pouring work box. This single pin replaces the need for multiple separate attachment pins, simplifying the attachment structure while maintaining securing reliability through centralized force distribution.
Solution Approach 2:
The central attachment pin serves multiple functions: it provides the primary attachment point for securing the pouring work box to the shuttering wall, acts as a positioning reference for drilling the attachment hole, and distributes impact forces during the securing process. This multi-functionality eliminates the need for separate components.
2Strength
If multiple attachment holes are drilled in the shuttering wall, then the securing strength is improved, but the manufacturing precision and time consumption increase
Solution Approach 1:
The patent extracts the attachment function from multiple distributed holes and concentrates it into a single central hole. This eliminates the need for precise positioning and diameter matching of multiple holes, reducing manufacturing precision requirements while maintaining sufficient securing strength through the centralized attachment mechanism.
Solution Approach 2:
The central attachment pin is designed to serve as a preliminary positioning reference that guides the drilling of the single attachment hole. This preliminary action ensures proper hole location and diameter without requiring complex templates or multiple measurement steps, streamlining the installation process.
3Measurement precision
If a hole drill template is used for precise hole positioning, then the attachment precision is improved, but the device complexity and ease of operation worsen
Solution Approach 1:
The pouring work box itself serves as the positioning reference through its central attachment pin design. The symmetrical placement of the pin on the box provides inherent alignment cues that guide the drilling process without requiring external templates or additional positioning aids, making the installation process more intuitive and easier to perform.
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 easy and reliable securing of the pouring work box on a shuttering wall with reduced complexity and precision requirements, allowing for straightforward installation and stable anchoring during concrete pouring.
Implementation Method 1
The support forms a means for directly transferring impact forces from the bottom wall to the attachment pin. In that way the electrician is able to firmly anchor the attachment pin in the attachment hole by hitting onto the bottom wall from the outside.
Data Source
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AI summary
Pouring work box for building up electric wiring, comprising a bottom wall and a circumferential wall that bound an installation cavity which via an installation opening situated opposite the bottom wall is accessible for arranging electric connections, an installation edge at the location of the installation opening for attachment of switch material on the pouring work box, a lid closing off the installation opening, and an external attachment pin for securing the pouring work box in an attachment hole in a shuttering wall, wherein the attachment pin projects from a centre part of the lid situated in the middle of the installation opening.