| 摘要 |
<p>The present invention provides a fixing device (1), for anchoring a screw or bolt in a hole in a structure, comprising a flexible sleeve (3) having a nut (5) for receiving the screw or bolt. The nut (5) is fixedly disposed in the sleeve (3) near one end thereof, and the peripheral surface of the nut (5) is enclosed by the sleeve (3). The outer surface of the sleeve (3) is provided with annular ribs (11) for hindering extraction of the radially expanded sleeve (3) from the hole, and at least one axial rib (9) protruding marginally beyond the cylindrical outer surface of the sleeve (3) for hindering rotation of the sleeve (3) during screwing of the screw or bolt into or out of the nut (5).</p> |
