Pipe Coupling Device With Stepped Insertion Hole

The insertion hole is divided into multiple stepped sections with different depths, allowing selective engagement of pipe portions at different depths. This segmentation enables adequate coupling depth for corroded portions without requiring excessive pipe removal, as each step provides a specific engagement level.

The pipe coupling device incorporates adjustable insertion depth mechanisms that allow dynamic adaptation to different pipe conditions. The stepped structure enables the system to dynamically select the appropriate coupling depth based on the actual corrosion extent, optimizing both coupling precision and material preservation.

The pipe coupling device employs composite material construction, combining engineering plastics with reinforcement structures or metal inserts only where absolutely necessary. This composite approach maintains adequate strength and heat resistance while dramatically reducing manufacturing costs compared to full metal construction.

The device utilizes engineering plastics with optimized material parameters (molecular structure, cross-linking density, filler content) to achieve mechanical properties comparable to metal. By changing material parameters rather than material type, the device attains necessary strength and heat resistance at lower cost.

The stepped structure provides self-aligning features that guide pipe insertion to the correct depth automatically. The physical steps create tactile feedback and mechanical stops that enable operators to achieve proper insertion depth through tactile sensation alone, ensuring hermetic sealing without requiring precise measurement or complex alignment procedures.

The patent incorporates visual indicators (such as colored rings or markings at different step levels) that change or become visible at specific insertion depths. These visual cues allow operators to quickly identify when the pipe has reached the correct insertion depth, ensuring reliable sealing while simplifying the operation.

The patent integrates multiple functions into unified components. The stepped structure simultaneously provides sealing surfaces, alignment features, and depth control in a single integrated element rather than requiring separate components for each function. This merging reduces overall device complexity while maintaining hermetic sealing.

The coupling device incorporates universal features that perform multiple functions: the stepped structure provides both mechanical coupling and sealing, while also serving as an alignment guide and depth indicator. This multi-functionality reduces the number of separate components needed, simplifying the overall device structure.