Tension meter for anchor rod with constant resistance and large deformation
US9488049B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 13, 2011 |
| Grant date | Nov 8, 2016 |
| Priority date | — |
| Expiry date | Feb 11, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L5/0061
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A tension meter of an anchor rod with constant resistance and large deformation comprises a pull rod and a hollow jack. The meter further includes: a rotation device for controlling the rotation angle of the hollow jack; a lifter for adjusting the height of the hollow jack and the rotation device; a first hydraulic pump for driving the hollow jack, wherein the hollow jack is fixed on the rotation device mounted on the lifter. The meter has a large measurement range and a high load capacity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.