Recyclable pile foundation
US11629475B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 7, 2022 |
| Grant date | Apr 18, 2023 |
| Priority date | — |
| Expiry date | Sep 7, 2042 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02D5/72
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A recyclable pile foundation is provided. The recyclable pile foundation includes several inner cylinders, several outer cylinders and several reciprocating components which are circumferentially distributed between the inner cylinders and the outer cylinders. Each reciprocating component includes several steel collars, a push-pull rod, a hold component and at least one motion component. The motion components are distributed along the push-pull rod. Each motion component includes at least one triangular connection plate, several connection rods, an inner wedge block, an outer wedge block, a motion block and a pointed rod. When the push-pull rod is pushed along its own axis to the pushed position, the pointed rod protrudes from the outer cylinders to increases the friction between the surrounding soil and the recyclable pile foundation. When the push-poll rod is pulled along its own axis to the pulled position, the pointed rods retract back into the outer cylinders.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.