| 摘要 |
<p>The invention relates to an internal vibrator for the homogenization of freshly poured concrete. According to the invention, the vibrator consists of an electrically or mechanically actuated generator (1) producing sonic waves which are transmitted through a conduit (2) to a vibrating element (3), the conduit (2) having a rigid inner tube (4) enveloped into a protective jacket (5) made of rubber reinforced with a wire gauze, the vibrating element (3) being made of a metal core (6) tightly covered with a rubber jacket (7).</p> |
