Arm placing frame for operation

The utility model discloses an arm placing rack for surgery, which comprises a shell, a bidirectional screw rod is rotatably arranged in the shell, two sides of the bidirectional screw rod are in threaded connection with sliding blocks I, one end of the bidirectional screw rod is exposed out of the shell and is connected with a rotating handle, the sliding blocks I penetrate through the top wall of the shell and extend to the upper part of the shell, and the rotating handle is connected with the bidirectional screw rod. The top ends of the first sliding blocks are rotationally connected with telescopic rods through bearings, the top ends of the telescopic rods are connected with a containing plate, and the two sides of the bottom face of the shell are both connected with mounting frames, the rotating handle is rotated to drive the two-way screw to rotate, so that the two first sliding blocks are driven to be close to or away from each other, and the position of the containing plate is adjusted; the device is