A one-way transmission structure is provided, which includes a sleeve and a rotating shaft passing through the sleeve, where the rotating shaft is fixed in the sleeve through a rope in a suspended manner, a first end of the rope hitches on the rotating shaft and forms a Prusik knot, and a second end of the rope is fastened on a side wall of the sleeve. In the one-way transmission structure, an active portion and a passive portion can be connected flexibly, which has advantages such as a simple structure, a low manufacturing and maintenance cost, and conveniences in mounting and maintenance.