Weight piece device of power training device

The invention provides a weight piece device of a power training device, and belongs to the field of body building instruments. The weight piece device of the power training device comprises a base support provided with a plurality of weight pieces, the multiple weight pieces are horizontally piled and are connected to a first rotation shaft in series, the two ends of the first rotation shaft perpendicularly penetrate through two lateral plates of a large frame main plate and are fixed to the base support, a wire turning disc used for being matched with a traction belt for use is fixedly arranged above an end plate of the large frame main plate, a second rotation shaft parallel with the first rotation shaft is arranged at the end, far away from the large frame main plate, of the end plate, a clamping device corresponding to each weight piece is arranged on the second rotation shaft, and the clamping devices are matched with an adjusting device for use. The weight piece device of the power training device is reasonable in design, is convenient to use, changes a traditional lifting type movement method of the multiple horizontally piled weight pieces into a rotary type movement method, changes the appearance structure, reduces the self size, can meet various requirements of the public, and is suitable for large-scale popularization and use.