Abstract: An anti fall-off cable chain includes two side ropes, a transition chains and connecting pieces, wherein the two side ropes are arranged horizontally, the transition chains are longitudinally arranged between the two side ropes, and the side ropes and the transition chains are connected through the connecting pieces. Each connecting piece includes an attaching part to be attached to a side face of a tire, a side rope mounting part arranged at one end of the attaching part, and a transition chain mounting part arranged at another end of the attaching part. When pulled by the part, attached to the tread of the tire, of the transition chain to tilt upwards, the transition chain connecting pieces trend to draw away from the mounting holes and are limited by first upper limiting parts.

Abstract: An automotive tire non-skid device for snowfields to increase adhesion to pavement covered with ice or snow, in particular to a diagonal bead chain stress reducing pinch plate and a diagonal bead chain. Through configuration of stress reducing pinch plates and stress reducing transition chains disposed on two sides of a second connecting assembly, concentrated stress at the connector roots of steel cables of the stress reducing transition chains are isolated, dispersed and relieved, and the service life of the steel cables are prolonged. At the same time, the present invention has the advantages of simple structure, stable performance, convenient modification and low manufacturing cost.