| 摘要 |
FIELD: medicine.SUBSTANCE: stand comprises a supporting column with guide rails attached, a carrier configured vertically movable in the guide rails along the column, an X-ray equipment attachment bracket mounted on the carriage, and a carriage lift and restraint device. The carriage lift and restraint device is configured as a self-breaking worm motor gear at the top of the column. An output shaft of the motor gear bears at least two sprockets. In the middle of the carriage, there is a hinged rocking bar ends of which are chained with the sprockets. The carriage is provided with a motor gear reverse switch and a spring-loaded lever mechanism configured to turn the rocking bar once the X-ray equipment attachment bracket hits an obstruction when moving down, and to actuate the motor gear reverse switch.EFFECT: higher safety of the stand for vertical movement, design mass reduction and continued possibility to limit load when moving down, downsizing and original cost reduction by the absence of necessity to balance X-ray equipment by means of a counter-weight.3 dwg |
