Zero-loss depth current limiting device

The utility model provides a zero-loss depth current limiting device, which relates to the technical field of current limiting devices and comprises a zero-loss depth current limiting machine body, a protective shell fixedly mounted at the bottom of the machine body, a damping component mounted at the bottom of the protective shell, and a telescopic component mounted at the bottom of the damping component. According to the zero-loss depth current limiting device, when the zero-loss depth current limiting machine is moved and encounters a bumpy road section, the telescopic assembly ascends to enable the supporting rod to extrude the interior of the sleeve rod, meanwhile, one end of the hinge piece extrudes upwards, the first spring shrinks, the other end of the hinge piece slides on the surface of the supporting column, and the second spring is stretched; and then, when the device descends, the first spring stretches and the second spring extrudes at the two ends of the hinge piece, then air in the sleeve rod