Device for connecting a longitudinal tie between grid bow member for tunnel engineering

• Main Authors: YUE AIMIN, ZHENG XUEMEI, HAN XUEGANG, KONG HENG, WANG WENZHENG, ZHANG YANQIU, HUANG MINGLI, QIAO GUOGANG, FU XIAOJIAN, WANG FUQIANG, SHI YONGJIE, ZHANG ZHI'EN, YANG JIANHUA
• Format: Patent
• Language: Chinese; English
• Published: 23.11.2018
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; GALLERIES; LARGE UNDERGROUND CHAMBERS; MINING; SHAFTS; TUNNELS

The utility model discloses a device for connecting a longitudinal tie between grid bow member for tunnel engineering belongs to tunnel engineering technical field, and the device comprises connectingrod, two rings, and two rings are located the both ends fixed connection of connecting rod, the ring constitutes by two semicircles ring, one of them is the semicircle ring no. 2 that has the pawl, another encircles one with the fixed semicircle of connecting rod, semicircle ring no. 1 two from top to bottom side by side semicircles ring be formed by connecting, the one end of semicircle ring andthe connecting rod fixed connection who has the tooth's socket, the other end forms with two bolts on the semicircle ring that have the pawl, the utility model discloses the longitudinal tie of two pin grid bow members can be realized to the device, improves when strutting the overall stability of system, can guarantee the accurate installation of next pin grid bow member again, easy operation, and the connection speed ha