1results about How to "Prevent security incidents" patented technology

The application relates to an anchor rod with multiple force resistance lines, which comprises a core steel bar, a large sleeve, a small sleeve, a limiting structure comprising a large sleeve limiting end plate and a small sleeve limiting end plate, which are suitable for limiting the moving distance of the large sleeve and the small sleeve away from each other along the core steel bar; and an auxiliary force transmission structure comprising a large sleeve sealing head steel plate, a steel supporting plate provided with a large sleeve outer stiffening rib between the large sleeve and the steel supporting plate, the steel supporting plate being fixed on a rock wall, an inner sleeve provided in the large sleeve and surrounding the core steel bar, the inner sleeve being provided with a large sleeve inner stiffening rib between the large sleeve and the inner sleeve, and the large sleeve inner stiffening rib being connected with the large sleeve sealing head steel plate. After the core steel bar is stretched and deformed, the large sleeve limiting end plate and the small sleeve limiting end plate are in contact to provide anchoring force, play the role of the second line of defense, and cooperate with the anchoring force provided by the core steel bar to provide greater supporting force, so that the anchor rod can continue to play a role.