Device for preventing hopper car bottom door from being accidentally opened and hopper car

• Main Authors: ZHANG CHUNFA, ZHANG YAN, ZHAO ZUXING, RYU YOUNG-BOK, WANG NIANCHANG, NAN JINFENG, HUANG GANGQIANG, LIU WENSHENG
• Format: Patent
• Language: Chinese; English
• Published: 13.06.2023
• Subjects: ACCESSORIES THEREFOR; BODY DETAILS OR KINDS OF RAILWAY VEHICLES; FIXED CONSTRUCTIONS; HANDCUFFS; KEYS; LOCKS; PERFORMING OPERATIONS; RAILWAYS; SAFES; TRANSPORTING; WINDOW OR DOOR FITTINGS

The invention discloses a hopper car bottom door accidental opening prevention device and a hopper car, and relates to the field of railway wagons. One end of the connecting rod is hinged to one end of the touch plate, a spring seat is arranged on the vehicle end partition plate, and the spring seat is connected with the connecting rod and applies elastic acting force to the connecting rod in the first direction; the lock hook assembly is hinged to the other end of the connecting rod, the lock hook assembly comprises a torsion spring, and the torsion spring can enable the lock hook assembly to rotate towards the bottom door; when the connecting rod moves in the first direction, the lock hook assembly can move in the direction away from the bottom door. The accidental opening prevention device is provided with the rotatable touch plate and the lock hook assembly, when the accidental opening prevention device is different from opening and closing of the bottom door in the working process, the lock hook assembly