Stretchable bus armrest

The utility model discloses a stretchable bus armrest. The stretchable bus armrest comprises a fixed rod and a movable rod; a reel is arranged in the fixed rod, and the bottom of the reel is connected with a torsion spring; a lengthening belt is wound on the reel, and the bottom end of the lengthening belt is connected fixedly with one end of an adjacent movable rod; a rack for fixing with the top of a bus is further arranged on the top of the fixed rod; arc grooves are formed in both the top and the bottom of the movable rod; a finger blocking position is formed in the inner side of the arc groove of the top. The lengthening belt is a cloth belt or leather belt. The stretchable bus armrest is simple in principle and convenient for use; the function of pulling out and restoring the movable rod on the armrest can be realized by the synergistic effect of the reel and the torsion spring, short and small persons can hold the armrest conveniently, so as to stand steadily in a carriage; the stretchable bus armrest is simple in structure, low in design and manufacturing cost, and quite practical.