| 摘要 |
A height-adjustable safety inspection device installed to a pier of a bridge is provided to perform safety inspection of a pier easily by installing a safety inspection stand to move vertically along a pier. A height-adjustable safety inspection device installed to a pier of a bridge for performing safety inspection of a pier comprises a central guide rail(10) fixing the location of a safety inspection stand and guiding a safety inspection stand vertically and provided with a rail bar(11) fixed to a lower wall surface of a pier(1) vertically, hanging projections(12) formed on two front ends of the rail bar longitudinally and many long holes(13) fitted with fixing bolts to limit the vertical movement, outer guide rails(20) installed to two sides of the central guide rail and provided with a rail bar(21) fixed to the lower wall surface of the pier vertically, hanging projections(22) formed on two front ends of the rail bar longitudinally and a rack gear(23) engaged with a driving gear and an idle gear, and a safety inspection stand(40) moving vertically along the central guide rail and the outer guide rails. In addition, a lower horizontal bar(30) is installed to be in contact with the bottom of the central guide rail and the outer guide rails and fixed horizontally to prevent the safety inspection stand from descending any more. |
