The invention discloses a bottom door locking system of a railroad hopper car, comprising a bottom door, a primary locking device and a secondary locking device and further comprising a ground collision device, wherein the bottom door, the primary locking device and the secondary locking device are arranged at the bottom of the hopper car; the ground collision device is positioned on the ground and matched with the locking devices to realize the opening and closing of the locking devices; the secondary locking device is a four-lever transmission mechanism with motion dead points and includes an unlocking lever contacting to the ground collision device to drive, a connection lever connected with the unlocking lever and formed into a transmission structure with a latch hook, the latch hook for locking or unlocking the bottom door by a rotation, and a unit for driving the latch hook to reset automatically. The primary and secondary locking devices of the railway hopper car can realize the automatic unlocking, the bi-directional driving to open and close the bottom door automatically, and the automatic locking, so the whole system does not need the manual operation or use any auxiliary power to avoid error operations; the system is structured compactly, simply and reliably; the railway hopper car with the system can prevent the trains from arranging and grouping along a fixed direction, so the turnaround time is saved; and both idle and loaded cars can drive along any direction, the eccentric wear of the cars is avoided.
Bottom door locking system of railroad hopper car
2015-05-27
Patent
Elektronische Ressource
Englisch
IPC: | B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES |
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