Train spin locking water feeding device

The utility model relates to a train spin locking water feeding device which is composed of a large cylinder and a small cylinder. The train spin locking water feeding device comprises a water inlet and a water outlet and is mainly formed by sequentially connecting a casing coupling of the water inlet with an adapter sleeve, a valve body, a cylinder joint sleeve, a socket sleeve, a switch, a pin, a valve and a part in a threaded mode. The valve body and the outer ring switch between the adapter sleeve and the cylinder joint sleeve are connected through the pin. The other end of the casing coupling is connected with a center shaft of the valve in a valve body circular arc groove. End face double holes of the casing coupling are communicated with the opposite double holes in the valve body. The inner peripheral taper of the socket sleeve connected with the other end of the cylinder joint sleeve in a threaded mode and a straight hole are tightly matched with the taper of a water filling nozzle and a new train and the taper of a water filling nozzle of an old train, the casing coupling of the train spin locking water feeding device is connected to a water feeding rubber pipe of a ground pipeline, the train water feeding process is finished, and it is guaranteed that a certain amount of water is fed within a short time.