Automatic unlocking device for radiotherapy and unlocking method thereof

The invention provides an automatic unlocking device for radiotherapy and an unlocking method thereof.The automatic unlocking device comprises a bottom plate and a low-temperature thermoplastic membrane, an inflation execution part is arranged in the bottom plate, a plurality of connecting holes are formed in the bottom plate, a plurality of buckles are arranged on the low-temperature thermoplastic membrane, and the low-temperature thermoplastic membrane is connected with the connecting holes in a clamped mode through the buckles. Connection between the low-temperature thermoplastic membrane and the bottom plate is achieved, and the inflation execution piece is inflated and expanded through the inflation and deflation device. The technical problem that after a patient is treated, a doctor needs to release the patient every time and needs to unfasten a plurality of buckles, and along with continuous increase of radiotherapy patients, the working intensity of a technician can become larger and larger can be sol