Composite slotting equipment combined static pressure and vibration of polymer anti-seepage wall and using method thereof
US11085166B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 23, 2020 |
| Grant date | Aug 10, 2021 |
| Priority date | — |
| Expiry date | Apr 23, 2040 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02D2250/003
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A pressing-pulling device includes: a pressing-pulling bracket, wherein slotting oil cylinders are symmetrically and vertically mounted on the pressing-pulling bracket, and a piston rod of each of the slotting oil cylinders faces downwardly; a bottom end of the piston rod is connected to a connecting plate, and a through-hole is provided in a middle of the connecting plate; a continuous lifting mechanism is installed in a middle of the pressing-pulling bracket, and a slotting rod is vertically inserted into the continuous lifting mechanism; a lifting ring is installed at a top end of the slotting rod; a bottom end of the slotting rod extends downwardly through the through-hole to connect to a slotting cutter; a locking device is fixed on the connecting plate near the through-hole for fixing the slotting rod.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.