| 摘要 |
The plug has a sleeve-shaped body (1) and two expanding parts (2) integrally connected with the body (1) and mutually separated by a longitudinal slot (7). Projecting from each expanding part (2) is a securing element which extends beyond the free end (5) of the body (1). When the plug rotates the securing elements (3) are wrapped around the body (1) and lodge between the body (1) and the drilled hole, so that the plug is immobilized. The plug is suitable in particular for use in soft or porous material such as tufa, foam concrete or brick. |
