本文论述了锁闭机构的受力情况并进行计算，为机械设计奠定了基础。

For laying a good foundation for the mechanical design, the paper discusses and calculates the forces applied on the locking mechanism.

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本发明涉及一种铁路货车锁闭机构，特别是涉及一种铁路货运敞车下侧门的锁闭装置。

The invention relates to a locking mechanism of a railway freight car, in particular to a locking device arranged on a lower side door of a rail freight gondola car.

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就国内现用漏斗车锁闭机构设计中的一些关键性技术问题进行了分析讨论，并提出了建议。

Some key technical points in design of the locking mechanism on hopper cars at present in China are analyzed and discussed.

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