Radiotherapy system, radiotherapy equipment and rotating rack

The invention belongs to the technical field of high-end medical equipment, and discloses a radiotherapy system, radiotherapy equipment and a rotating rack, the rotating rack comprises a first machine arm, a second machine arm and a connecting arm connected with the first machine arm and the second machine arm, and the first machine arm and the second machine arm are used for driving the connecting arm to rotate. The connecting arm is used for bearing and fixing the particle accelerator, the connecting arm is provided with a containing space, the containing space is used for containing the pull-out piece, and the rotation axis of the first machine arm and the rotation axis of the second machine arm penetrate through the isocenter of particle beams of the particle accelerator. An opening is formed in the side wall of the connecting arm, and an operator can enter the containing space through the opening. And/or at least one end of the connecting arm is provided with a first through hole communicated with the ac