| 摘要 |
A rotary auxiliary underpinning support comprises a body with a support pin, which is based by its slant on an inclined surface of a wedge, a rod with a head is screwed into a blind threaded hole of the wedge, and a compression spring in contact with the wedge. The body of support comprises rotary and stationary parts, and the support pin for its pressing to the inclined surface of wedge is equipped with the compression spring, which is located in the rotary part of support body, and each part of the support body comprises a cylindrical portion, the cylindrical portion of rotary part of the support body is made with an internal through slot with a threaded clamping mechanism located therein and contact with appropriate cylindrical portion of the fixed part of support body. |
