Arm strength training device for physical training

The utility model discloses an arm strength training device for physical training, which comprises a base, a positioning column, a supporting block and a sliding chute are arranged on the base, a balancing weight is movably arranged on the positioning column in a penetrating manner, a horizontal bar and a fixed arm are arranged on the front side of the supporting block, a free end of the fixed arm is fixedly connected with a torsion spring, and a free end of the torsion spring is fixedly connected with a movable arm. A fixed pulley is arranged on the top of the supporting block, a pull rope is slidably connected to the fixed pulley, a weight box is fixedly connected to the rear end of the pull rope, a pull ring is arranged at the front end of the pull rope, a pull rope box is arranged on the rear side of the sliding groove, a grab handle is fixedly connected to the pull rope box through the pull rope, a fixed wheel penetrates through the grab handle, and a rotating wheel is arranged on the fixed wheel in a sl