The invention belongs to the field of lifts and provides a step-by-step hydraulic lift which has the advantages of maximum carrying capacity, infinite lifting height, no lift well, no pit, and safety and reliability. A plurality of or a plurality of groups of hydraulic cylinder blocks 5 are fixedly connected to a motion body (car) 2; a hydraulic station 1 is mounted under the hydraulic cylinder block and used for supplying liquid for the hydraulic cylinder blocks 5 and controlling the action of the hydraulic rod 6. An expansion block 3 and an expansion block controller 4 are positioned on a holder. When the motion body (car) 2 moves, the expansion block controller 4 drives the expansion block 3 to extend out, the first hydraulic rod 6 or the first group of hydraulic rods 6 extends out of the hydraulic cylinder block(s) 5, the expansion block 3 is stepped to drive the motion body (car) 2 to move up or down by a certain distance, the second hydraulic rod 6 or the second group of hydraulic rods 6 extends out to drive the motion body (car) 2 to move up or down by a distance L together with the first hydraulic rod 6 or the first group of hydraulic rods 6, and then the second hydraulic rod 6 or the second group of hydraulic rods 6 independently drives the motion body (car) 2 to move up or down by a distance and the first hydraulic rod 6 or the first group of hydraulic rods 6 extends out; the rest can be done in the same manner to realize cyclic actions, and therefore, the motion body (car) 2 is enabled to go up or down non-intermittently step by step.
Step-by-step hydraulic lift
2015-04-15
Patent
Electronic Resource
English
IPC: | B66B Aufzüge , ELEVATORS |