Modular Interlocking Bend Restriction Element for Conduit Protection
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Solution Overview
Problem
Existing bend restriction elements for conduits are either labor-intensive and costly to install due to numerous nut/threaded bolt combinations or vulnerable to failure under varying loads, leading to potential kinking or damage of the conduit.
Innovation Solution
A modular bend restriction element that ensures strong relative connections between tube segments through interlocking mechanisms, distributing loads effectively and eliminating the need for threaded bolts and nuts except at the last segment, promoting ease of installation and reducing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If nut/threaded bolt combinations are used to fasten bend restriction elements, then the connection strength is improved, but the installation labor intensity and cost increase
Solution Approach 1:
The patent combines the fastening function into the modular bend restriction elements themselves through integrated interlocking mechanisms (protrusions and recesses), eliminating the need for separate nut/threaded bolt fasteners. This merging of functions reduces installation complexity while maintaining connection strength.
Solution Approach 2:
The bend restriction elements are designed with self-fastening capabilities through their interlocking geometric features. The elements automatically secure to each other without requiring external fastening tools or components, enabling quick installation while ensuring robust connections.
2Reliability
If multiple nut/threaded bolt combinations are used per tube segment, then the reliability of connection is improved, but the cost and installation complexity increase
Solution Approach 1:
The patent integrates multiple connection functions into a single modular element design. Each bend restriction element contains built-in interlocking features that simultaneously provide both circumferential and longitudinal securing, eliminating the need for multiple separate fastening operations.
Solution Approach 2:
The bend restrictor is divided into modular segments that can be independently assembled. Each segment is a self-contained unit with integrated fastening features, allowing for simplified step-by-step assembly while maintaining overall system reliability through the modular interlocking design.
3Strength
If traditional fastening methods are used, then the structural strength is improved, but the manufacturing cost increases
Solution Approach 1:
The patent combines structural support and fastening functions into a single integrated component design. The modular bend restriction elements inherently provide both mechanical strength and self-fastening capabilities, eliminating the need for additional fasteners and reducing overall manufacturing costs.
Solution Approach 2:
The patent changes the geometric parameters of the bend restriction elements to create optimized interlocking profiles. By carefully designing the shape and dimensions of protrusions and recesses, the elements achieve both high structural strength and easy assembly without requiring expensive fastening hardware.
Data Source
AI summary
A bend restriction element (1) is modular for forming a tube segment (12) all around a conduit through locked interlocking circumferential interconnection of multiple similar such elements (1). The tube segment (12) is modular for forming an articulated tube (100) around the conduit through locked interlocking longitudinal interconnection of multiple similar such tube segments (12). The locking of the circumferential interconnection of the elements (1) is ensured both by the manner of interlocking of a tube segment concerned (12) with a tube segment (16) situated on one side thereof, and by the manner of interlocking of the tube segment concerned (12) with a tube segment (14) situated on the other side thereof.