一种PCCP预应力钢筒混凝土管封堵用胀管装置
By designing a support frame and a tube expansion device with a deformable extrusion plate, the problem of sealing failure of PCCP prestressed steel cylinder concrete pipe sealing device in high-pressure water pipelines was solved, achieving stable sealing and rapid recovery of pipes with different inner diameters.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHANDONG WOTE PIPE IND CO LTD
- Filing Date
- 2026-05-08
- Publication Date
- 2026-07-17
AI Technical Summary
Existing PCCP prestressed steel cylinder concrete pipe sealing devices suffer from poor sealing reliability and lack of rigid support structure. In particular, in high-pressure water pipelines, the air bladder is easily affected by water flow impact, leading to sealing failure, and it is difficult to adapt to areas with large pipe diameters and uneven inner walls.
An expansion tube device comprising a sleeve, a support plate, a rotating rod, an annular air bladder, and a support frame is designed. The sleeve is fixed in the center inside the concrete pipe by the support frame. The annular air bladder expands outward uniformly during expansion. The sealing effect is enhanced by the support frame and a deformable extrusion plate. The support frame provides support force to adapt to different inner diameters and resist impact.
It improves the sealing effect in high-pressure water pipelines, can adapt to concrete pipes of different inner diameters, remains stable under impact, has a rapid recovery function, and enhances the reliability and adaptability of the sealing.
Smart Images
Figure CN122407904A_ABST