The invention discloses a
braking system of a rollator, and relates to the technical field of rollator, a first
piston rod is inserted in a first oil cylinder, and the first
piston rod can move in the direction of inserting or pulling out the first oil cylinder; the second oil cylinder is arranged on the frame beside tires of the rollator, a second
piston rod is inserted into one side, facing the tires, of the second oil cylinder, and the second
piston rod can move in the direction of inserting or pulling out the second oil cylinder; the oil way is embedded in a frame of the rollator, one end of the oil way is communicated with the first oil cylinder, the other end of the oil way is communicated with the second oil cylinder, and the first
piston rod moves in the direction of being inserted into the first oil cylinder, extrudes oil to flow towards the second oil cylinder and extrudes the second
piston rod to be pulled out of the second oil cylinder. The
brake pad is slidably arranged on the side, facing the tire, of the second oil cylinder. The second piston rod moves in the second oil cylinder pulling-out direction to abut against the
brake pad and slides in the tire direction to stop the tire. The
brake handle drives the first piston rod to move towards the first oil cylinder. The braking efficiency of the rollator can be improved, and an oil way can be hidden.