▎ 摘　　要

NOVELTY - The device has a radiographic inspection device (1) for radiographic inspection of a patient. The top of a radiation energy-consuming duct (2) is installed under the ray source of the ray inspection device. The radiation energy-consuming duct is controlled to expand and contract by a motor (3). A protective soft curtain is installed in the radiation energy-consuming duct. A sensor (5) is installed at the bottom of the radiation energy-consuming duct. A programmable logic controller (PLC) (6) controller is electrically connected with the sensor and the motor respectively. The PLC controller sends forward rotation, reverse rotation or stop signal to the motor according to the parameters detected by the sensor. USE - Elephant trunk-type ray restraint protection device for use in radiographic inspection such as digital radiography (DR) inspection and computed tomography (CT) inspection of patient. ADVANTAGE - The device reduces radiation dose of the patient in the process of checking, so that efficiency of the examination can be improved. The device allows the radiation energy consumption culvert to control the extension by the motor. The protective soft curtain is provided with an air bag through the air source deflation or air inlet, so as to control telescopic size of the curtain. The radiation energy dissipation duct is made of nano lead powder, barium sulfate, graphite, water and barium sulfurate, thus reducing radiation dose to the patient during the examination. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram of the trunk-type ray restraint protection device. Radiographic inspection device (1) Radiation energy-consuming duct (2) Motor (3) Sensor (5) PLC controller (6)