FOLDABLE PROTECTION GUARD AND USE THEREOF, AND RAILWAY WAGON SPECIAL VEHICLE FOR TRANSPORTING AUTOMOBILES

Disclosed are a foldable protection guard and the use thereof. The foldable protection guard comprises at least one group of protection assemblies (1). Each protection assembly (1) comprises a first rod (3) that is transversely arranged; the first rod (3) is connected to a plurality of second rods (1.1) in a hinged manner; first soft ropes (4) are connected between the second rods (1.1); a side portion of each second rod (1.1) is connected to a locking device (5); the locking device (5) comprises a sliding locking plate (5.3) hinged to the second rod (1.1); the sliding locking plate (5.3) is provided with a sliding groove; a fixing shaft (5.2) is arranged in the sliding groove and can slide along the sliding groove; the fixing shaft (5.2) is fixedly connected to a fixing base plate (5.1); and the locking device (5) can drive the second rod (1.1) to be switched between an inclined state and a vertical state, and can lock or unlock the second rod (1.1) in terms of position in the two states. Further disclosed i