Temporary supporting frame used before grouting of broken roof

• Main Authors: LIU ZHIQIANG, LIU YAJUN, LI TIANJIE, GUO MINGGONG, QUAN JUNJUN, LI MINGYUAN, DENG WUXIAN, WANG YONG, WANG WENFEI, QIN SHIWEI
• Format: Patent
• Language: Chinese; English
• Published: 24.01.2023
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; GALLERIES; LARGE UNDERGROUND CHAMBERS; MINING; SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS; SHAFTS; TUNNELS

The utility model belongs to the technical field of roadway supporting, and particularly relates to a temporary supporting frame used before grouting of a broken roof, which comprises a lower support, a bottom plate is connected to the bottom end of the lower support, and a folding wheel mechanism installed on the side face of the lower support comprises a hydraulic rod, a main rod body and a supporting wheel. A supporting plate installed in a lower support and an upper support are connected with the two ends of a hydraulic cylinder respectively, the top end of the upper support is connected with an arch-shaped support, the side face of the upper support is provided with a controller and an audible and visual alarm, one end of the arch-shaped support is connected with a steel wire rope net, and the other end of the arch-shaped support is provided with a strain gauge. The upper support side is connected with two ends of the upper crossbeam. The device has the advantages that the arch-shaped support can be down