The invention discloses a locking device of a hopper car bottom door. The locking device comprises vertical drive rods, an outer locking frame, central locking claws and reset elastic pieces. The vertical drive rods are vertically arranged on a guide base plate in a sliding mode, the reset elastic pieces are arranged between the vertical drive rods and the guide base plate, a support is fixed to a rotary shaft, and located below the vertical drive rods, the middles of the central locking claws are hinged to the support, and the tails of the central locking jaws are hinged to the lower ends of the vertical drive rods. The outer locking frame is fixed to a static object, a central hole is formed in the outer locking frame, the central hole of the outer locking frame is provided with a locking structure, and the central locking claws swing around a hinge shaft to be in locking fit with or be separated from the locking structure of the inner ring of the outer locking frame. The locking device of the bottom door is simple and reasonable in structure, the bottom door of a hopper car can be automatically locked on the premise of not increasing any operation, the success rate of locking the bottom door is improved, and economic losses caused by automatic opening of the bottom door are avoided.
Locking device of hopper car bottom door
2015-04-22
Patent
Elektronische Ressource
Englisch
IPC: | B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES |
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