Arm strength exercising device

The utility model relates to the technical field of fitness equipment, and discloses an arm strength exercising device which comprises a base cylinder, a separation ring is fixedly installed on the inner wall of the bottom of the base cylinder, a sliding clamping groove is formed in the side wall of the separation ring, and a sliding clamping seat is clamped in the sliding clamping groove in a sliding mode. A supporting rod is movably inserted into the surface of the sliding clamping base, and the position, located on the inner side of the separation ring, of the outer wall of the supporting rod is movably sleeved with a supporting ring. According to the arm strength exercising device, in the using process, the descending speed of the connecting cylinder and the exercising pull rod can be limited through the buffering device, the exercising comfort degree is improved, secondary injury caused by too large pulling force of the connecting cylinder and the exercising pull rod when the connecting cylinder and the