Take a follow -up lock ring's telescopic spreader of single girder

• Main Authors: LI TONG, MA LIANG, TONG BIAO, ZHAO LIMING, ZENG QINGFENG, WANG WAN, ZHOU HONGXIA, YANG FAN, WEI MIN, GAO HANKAI, MA FA'EN, LIU JIPING, XU YONG
• Format: Patent
• Language: Chinese; English
• Published: 11.01.2019
• Subjects: CRANES; HAULING; HOISTING; LIFTING; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS,WINCHES, OR TACKLES; PERFORMING OPERATIONS; TRANSPORTING

The utility model discloses a take a follow -up lock ring's telescopic spreader of single girder, including girder, interior flexible roof beam, flexible roof beam, interior flexible hydro -cylinder,flexible hydro -cylinder outward, the girder is single main section of thick bamboo structure, and interior flexible roof beam and outer flexible roof beam be the both sides of endotheca in the girderrespectively, be equipped with the configuration of sliding of the inside and outside glide machanism of support and girder on the interior flexible roof beam, inside and outside supports glide machanism stretches out and draws back the roof beam inboard including, with the configuration of sliding of interior flexible roof beam simultaneously and disposes supporting shoe outside the interior beam -ends portion of stretching out and drawing back for dispose mutually with outer flexible roof beam, the inboard of outer flexible roof beam is through the configuration of sliding of outer supporting shoe of outer flexible