Chernoff Villhauer LLP
Connecting rod type two-level locking device, hopper car bottom door and hopper car
The present invention discloses a connecting rod type two-level locking device, a hopper car bottom door and a hopper car, and belongs to the technical field of rail wagons. The connecting rod type two-level locking device includes a transmission shaft, a door opening arm, a first roller, a second roller, a first locating pin, a standstill locking disk and a linkage mechanism. The hopper car bottom door includes the connecting rod type two-level locking device. The hopper car includes the bottom door. Even if the connecting rod type two-level locking device is accidentally stressed, the linkage mechanism cannot rotate, and at this time, the slave arm cannot rotate neither. The accidental opening of the hopper car bottom door can be avoided. The hopper car is more reliable to use.
CRRC Yangtze Corporation Limited
B F B B
B61D F16D B61D B61D
inventional inventional inventional inventional
Qiangjun Mingdao Baolei Fengwei Wenliang Ruijin Liangcai Chuqiang Chunjiang Tiejun
Jiang Sun Wang Liu Liu Jiang Lin Tang Shi Fu