Tightening Square with Fixed Pins and Helical Spring for Angular Connection
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Solution Overview
Problem
Existing squares with fixed pins face difficulties in installation between upright and crosspiece frames, particularly for less experienced operators, and those with mobile pins have higher manufacturing costs and longer assembly times due to complex assembly requirements.
Innovation Solution
A square with fixed pins featuring an adjustment screw and a helical spring that automatically positions and fixes the plates orthogonally within sections, allowing for easy installation and reduced manufacturing costs by enabling automatic alignment and stabilization of the pins during assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If fixed pins are used in the square, then manufacturing costs are reduced and assembly is simpler, but the fixing operation becomes difficult and time-consuming for less expert operators
Solution Approach 1:
The square incorporates an adjustment screw mechanism that allows dynamic adjustment of the distance between plates during assembly. This dynamic capability enables operators to accommodate variations in section dimensions and achieve proper alignment more easily, transforming a static rigid structure into an adaptable one that guides the fixing operation.
Solution Approach 2:
The elastic element (spring) automatically pushes the pins toward the holes in the sections, creating a self-aligning and self-fixing mechanism. This eliminates the need for precise manual positioning and reduces the skill level required for operators, as the system automatically performs the alignment and fixing functions.
2Reliability
If mobile pins with housings and elastic elements are used, then the square can be inserted into sections more reliably, but manufacturing time and costs increase significantly
Solution Approach 1:
The invention merges the pin and the elastic element into a single integrated fixed pin structure. The elastic element is directly attached to the pin without requiring separate housings, reducing the number of components and simplifying manufacturing while maintaining the reliable pushing action needed for section insertion.
Solution Approach 2:
The invention extracts the complex housing structure from mobile pin designs and replaces it with a simpler fixed pin configuration. By removing the housing component and retaining only the essential elastic element attachment, the design achieves reliability without the manufacturing complexity of mobile pin systems.
3Device complexity
If adjustment screw alone is used without elastic element, then structure is simpler, but the plates cannot maintain stable orthogonal position automatically
Solution Approach 1:
The elastic element is pre-loaded to automatically push the pins toward the holes in the sections during assembly. This preliminary action ensures that the plates are guided into the correct orthogonal position without requiring complex adjustment procedures, maintaining stability while keeping the structure relatively simple.
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
The solution facilitates straightforward and stable assembly of the square between adjacent sections, reducing installation time and costs while ensuring accurate orthogonal alignment without the need for empirical adjustments, thus improving operational efficiency and cost-effectiveness.
Implementation Method 1
The peculiar characteristic of the invention consists in that the square comprises an elastic element that comprises a helical spring, inside which the adjustment screw is inserted. The helical spring is positioned between two wings of the plates of the square in order to oppose the diverging movement of the square and dispose the two plates of the square in orthogonal position.
Data Source
Figure 1~2
Figure 3
Figure 4A~5C
AI summary
The tightening square with fixed pins (12, 22) for connecting two adjacent sections disposed at right angle comprises two plates (1, 2) provided with adjustment means (14, 24, 4) adapted to get the two plates (1, 2) closer or farther; said adjustment means (14, 24, 4) allowing the square of the invention to diverge, in such manner that the internal sides (1b, 2b) of the two plates are respectively tilted by an angle (α) higher than 90°.