Radiotherapy frame lifting device and radiator frame

The invention discloses a radiotherapy frame lifting device and a radiator frame. A second strut can reciprocate up and down in a first strut when a handle is rotated into the slot of the first strut so that the overall height of the first strut and the second strut can be adjusted, namely the pitch angle of a support plate can be adjusted by rotating the handle. In radiotherapy positioning, after the pitch angle of the support plate is determined as required, relative movement of the first strut and the second strut can be locked by rotating the handle so as to determine an angle of the support plate and a frame plate. When a patient lies on the radiotherapy frame, the inclined angle of the patient can be selected according to the radiotherapy clinic demands of different patients. When the radiotherapy frame lifting device is removed, the support plate and the frame plate can be used as a fixed plate. When the radiotherapy frame lifting device is installed, the support plate can adjust the pitch angle around