Hydraulic rotary side-swing elevator
US11598162B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 2, 2021 |
| Grant date | Mar 7, 2023 |
| Priority date | — |
| Expiry date | Nov 2, 2041 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B19/06
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A hydraulic rotary side-swing elevator includes an elevator body, a side swing mechanism and a rotating mechanism. Rotatable shafts are arranged on left and right sides of the elevator body. An inner hinge and an outer hinge are respectively provided on the two rotatable shafts. An inner hinge driving structure includes an inner hinge opening and closing cylinder and an opening and closing cylinder fixing seat. An outer hinge driving structure includes an outer hinge locking cylinder and a locking cylinder fixing seat. The opening and closing cylinder fixing seat and the locking cylinder fixing seat are arranged on a rear side wall of the elevator body. A cylinder barrel part of the inner hinge opening and closing cylinder is hinged on the opening and closing cylinder fixing seat, and a piston part of the inner hinge opening and closing cylinder is hinged to the inner hinge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.