LOCKING DEVICE FOR BOTTOM SIDE DOOR OF RAILWAY OPEN WAGON

摘要

A locking device for a bottom side door of a railway open wagon comprises a locking seat (1), a locking plate (2), and a latch (3). A working shaft at an upper end of the locking plate (2) fits a first working groove (104) of the locking seat (1). An upper end of the latch (3) can rotate in a vertical plate hole (103) of the locking seat (1). A lower end of the latch (3) can rotate in a latch (3) connecting hole (201) at a lower end of the locking plate (2). The latch (3) has elastic deformation under the action of external force. The locking device has a first dead point. The first dead point is located at the center of the first working groove (104). The latch (3) passes through the first dead point under the action of external force to open or lock the locking device. The locking device cannot be opened by mistake during running of vehicles and turnover of car tipplers, and the working efficiency is improved.