Waterproof plate protection device for tunnel secondary lining steel bar welding

• Main Authors: YANG HUI, LU QIKAI, CHEN ZHIQIANG, XIAO FENG, XIONG CHENGYU
• Format: Patent
• Language: Chinese; English
• Published: 15.01.2021
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; GALLERIES; LARGE UNDERGROUND CHAMBERS; MINING; SHAFTS; TUNNELS

The utility model discloses a waterproof plate protection device for tunnel secondary lining steel bar welding, which comprises a first frame body and a second frame body, a fireproof piece is arranged between the first frame body and the second frame body, a support connecting piece is arranged below the first frame body, the first frame body comprises a first connecting rod, and the second framebody comprises a second connecting rod. And second connecting rods are arranged at the two ends of the first connecting rod. The clamping column is inserted into the through hole, the supporting connecting piece is rotated to enable the clamping column to be located in the clamping hole to rotate, the supporting connecting piece is held by hand, the protection device is placed between the secondlining steel bar and the waterproof plate, the first frame body and the second frame body are pulled, the fireproof cloth is unfolded, the fireproof cloth is placed above a welding point, and weldingis conducted. The waterproo