The present invention belongs to the technical field of seat armrests for rail vehicles, and discloses a lifting armrest for
business area seats, which includes an armrest cover plate covering component, an outer armrest cover, an integrated armrest mounting plate,
wire rope wheels, linear sliding rails, large gears, small gears, wire ropes,
wire rope crimping seats, and magnetic switches. One
wire rope wheel is installed on each side below the integrated armrest mounting plate, and one wire
rope wheel is installed on each side above the integrated armrest mounting plate. The four wire
rope wheels are distributed in a rectangle. Two tensioning wheels are installed below the inner sides of the upper two wire
rope wheels, and an auxiliary wheel is provided between the two tensioning wheels. A wire rope crimping seat is provided above the lower two wire rope wheels, and the wire rope crimping seat is fixedly installed inside the outer armrest cover. The structure of the present invention is simple and has
low noise. The running direction of the wire ropes ensures that the two wire rope crimping seats move up and down together. The wire rope crimping seat drives the lifting of the armrest cover plate covering component, and then drives the lifting of the armrest, and the armrest adapts to the seat state for lifting.