And back-up wrench and dismounting device are used for dismounting flange

• Main Authors: LIU JUNCHEN, XIAO WANRONG, TAN YU, YANG GANG, LIU ZHANFENG, YUAN ZIJUN, ZHANG CHUNSHENG, HAN ZHANFANG, SHU YUAN, LI YUNPENG, ZHU QINGDONG, YE YUN, HU CHAO, ZHANG JINMING, CHEN LIQUN, ZHANG XIAODONG, LI SHENGHONG, LI MEIXIN, LI XU, LIU JUNXI, WANG XUESONG, XU WEI, WANG KAIGUO, XUE YUAN, QING CAIXIA, JIA WEI, ZHU CHANGJUN, TAN JIANHUA, GUO HUAQING, ZHAO HONGQIU, ZOU KAI, WEI HONG, KANG JU, SHAN MINGZHE, ZHAO YONGTAO, SHAN HUA, PENG HUIQING, ZHANG PENGGANG, HUANG KUN, DONG YUMENG
• Format: Patent
• Language: Chinese; English
• Published: 06.12.2019
• Subjects: HAND TOOLS; MANIPULATORS; PERFORMING OPERATIONS; PORTABLE POWER-DRIVEN TOOLS; TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FORFASTENING, CONNECTING, DISENGAGING OR HOLDING; TRANSPORTING

The utility model provides a back-up wrench for dismounting a flange and a dismounting device, the back-up wrench comprises a back-up wrench body located on the surface of the same flange plate of theflange, the back-up wrench body comprises a first clamping piece and a second clamping piece which are connected with each other, and the distance between the first clamping piece and the second clamping piece is adjustable; and the first clamping piece and the second clamping piece are respectively clamped on any two fastening pieces on the same side of the flange plate. According to the technical scheme of the utility model, the flange fastener can be disassembled and assembled. According to the flange back-up wrench, the two ends of the fastener are prevented from rotating in the same direction, so that the fastener is disassembled and assembled, manual back-up wrench beating on the fastener is not needed, manpower input is reduced, meanwhile, the situation that when the wrench is manually held to beat back-up