Rotating Pin Locking Connector for Precast Concrete
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for connecting precast concrete structures, such as adhesives and bolts, lack flexibility and secure locking mechanisms, which can lead to instability and misalignment in construction applications.
Innovation Solution
A connector system comprising a receiver member with a hollow tube and anchors embedded in the concrete, paired with an attachment member featuring a post and pin mechanism that locks into the tube, allowing for adjustable orientation and secure attachment of elements to the precast structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional connection methods (adhesives, bolts, embedded plates) are used to connect precast structures, then the connection is structurally sound, but the flexibility and adjustability of positioning are limited
Solution Approach 1:
The connector transitions from a static embedded plate to a dynamic system with a rotatable attachment member. The attachment member can be inserted at any orientation and then rotated to achieve the desired final orientation, providing both structural soundness and positioning flexibility.
Solution Approach 2:
The invention adds a rotational dimension to the connection process. Instead of requiring precise alignment in a single plane during installation, the connector allows rotation around the insertion axis, adding a second degree of freedom for positioning adjustment.
2Reliability
If traditional connection methods are used, then the connection is established, but secure locking mechanisms are lacking leading to instability
Solution Approach 1:
The hollow tube has an asymmetric cross-section (rectangular or square) that does not match the circular cross-section of the post. This asymmetry prevents the attachment member from being rotated back to its original insertion orientation, providing a secure mechanical lock that ensures stability.
Solution Approach 2:
The connector is divided into distinct functional segments: the receiver member with hollow tube for insertion, the post for rotation, and the pin for locking. This segmentation allows each component to perform its specific function optimally while maintaining overall simplicity.
3Manufacturing precision
If precise alignment is required during installation of traditional connectors, then structural integrity is maintained, but installation time and complexity increase
Solution Approach 1:
The hollow tube is prepared in advance with a cross-sectional shape that will serve as the locking feature. This preliminary preparation eliminates the need for complex alignment procedures during installation, as the attachment member can be freely inserted and then locked by rotation.
Data Source
AI summary
A connector includes a receiver member having a hollow rectangular tube to be cast with a structure. An attachment member has a post extending with a pin extending radially through the post at a distal end. The pin is shorter than the longer rectangular dimension and longer than the shorter rectangular dimension. When the attachment member is positioned adjacent the receiver member and oriented with a longitudinal axis of the pin parallel to the longer rectangular dimension, the post can be inserted into the hollow tube and rotated to a position where the pin abuts a distal end of the hollow tube to lock the attachment member to the receiver member.