Multi-section double-structure variable-diameter pipeline robot
By using a multi-section dual-structure variable-diameter pipeline robot, combined with the independent drive of the telescopic variable-diameter unit and the lead screw variable-diameter unit, the problems of the existing robot's ability to pass through complex pipeline environments and the stability issues have been solved, thereby improving flexibility and stability and meeting the needs of modern pipeline network inspection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HOHAI UNIV
- Filing Date
- 2026-06-11
- Publication Date
- 2026-07-17
AI Technical Summary
Existing pipeline inspection robots suffer from problems such as weak passage capacity, poor adaptability, small diameter range, insufficient structural stability, and poor flexibility when facing complex working conditions, especially 90° right-angle bends, pipes with changing diameters, and vertical pipes. They are unable to meet the needs of modern pipeline networks for routine, automated, and refined inspection.
The multi-section, dual-structure variable-diameter pipe robot employs a front variable-diameter frame that achieves radial adaptive fine-tuning through a telescopic variable-diameter unit and a hub drive mechanism, while the rear variable-diameter frame achieves mechanical self-locking hovering and stable support through a lead screw variable-diameter unit. Both are driven independently by universal joints, achieving motion decoupling.
It achieves high flexibility and stability in complex pipeline environments, can effectively pass through bends and variable diameter pipes, has self-adaptive capabilities, and can hover in vertical pipes to observe details, thus improving inspection efficiency and safety.
Smart Images
Figure CN122407912A_ABST