Plate string extracting device

The utility model provides a plate string extracting device. The plate string extracting device comprises a cylindrical driving rod, a driving rod and a lifting device, the at least one gripper is fixedly connected with the cylindrical driving rod; the rotating center of the gripper is received; and the cylindrical sleeve sleeves the cylindrical driving rod and is fixedly connected with the rotating center through a gripper. According to the scheme, the structure is simple, the occupied space is small, the bearing capacity is large, the plate string can be extracted, and the sieve plate is convenient to replace and overhaul. 本实用新型提供一种板串提取装置，所述板串提取装置包括：圆柱形驱动杆；与所述圆柱形驱动杆固定连接的至少一个抓手；承接所述抓手的转动中心；圆柱形套筒，所述圆柱形套筒套住圆柱形驱动杆，通过抓手与转动中心固定连接。本实用新型的方案结构简单、占用空间小且承重较大，可以提取板串，方便筛板的更换检修工作。