Claw device for crane machine and crane machine

A crane machine, comprising a claw device, a driving device, and a rope;

• wherein the claw device comprises an adjustment assembly and an actuating assembly movably connected to the adjustment assembly;
• the adjustment assembly comprises a fixed disk and at least two connecting rods spaced apart along an outer peripheral edge of the fixed disk;
• the actuating assembly comprises a pivot plate disposed below the fixed disk and at least two clamping rods spaced apart along an outer peripheral edge of the pivot plate;
• a viewing window is formed between each adjacent two of the at least two clamping rods;
• each clamping rod comprises a connecting segment, a fixed segment, and a holding segment that are sequentially connected;
• the connecting segment is movably connected to the pivot plate;
• the fixed segment comprises a first clamping surface toward a center axis of the pivot plate;
• the holding segment extends toward the center axis of the pivot plate from a lower end of the fixed segment;
• the holding segment comprises a first holding surface toward the center axis of the pivot plate;
• the first holding surface is connected to the first clamping surface, and the first holding surface and the first clamping surface are arranged at an angle;
• an end of each connecting rod is movably connected to the fixed disk, and the other end of the connecting rod is movably connected to the connecting segment of a corresponding clamping rod;
• wherein the rope connects the claw device and the driving device;
• the driving device is configured to cause the fixed disk and the pivot plate of the claw device to be close to each other or far away from each other by driving the fixing rope;
• in condition of the fixed disk and the pivot plate of the claw device being close to each other, the at least two clamping rods of the claw device are close to each other;
• in condition of the fixed disk and the pivot plate of the claw device being far away from each other, the at least two clamping rods of the claw device are far away from each other.