Adjustable strand threading and lubricating device for prefabricated box girders
US12428257B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 21, 2023 |
| Grant date | Sep 30, 2025 |
| Priority date | — |
| Expiry date | Apr 10, 2044 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/10
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An adjustable strand threading and lubricating device for prefabricated box girders includes an underframe. Multiple first spline shafts are rotatably installed between left and right side walls of the strand threading boxes. The first openings are respectively located above the first spline shafts, first sliding blocks are respectively provided and configured to slide up and down in the first openings, multiple second spline shafts is rotatably installed between two first sliding blocks, and axes of the second spline shafts are parallel to the first spline shafts. The first spline shafts and the second spline shafts are slidably provided with multiple strand threading units for threading steel strands, a lubricating unit is arranged on a front side of the strand threading units, and a bundling unit is arranged on a rear side of the strand threading units.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.