The invention discloses a secondary locking mechanism for a bottom door of a railway hopper car, which relates to the technical field of railway hopper cars and comprises a handle component, a first pull rod component, a lever fulcrum component, a second pull rod component, a rotating shaft component, a tension spring seat, a tension spring, a third pull rod component and a locking lever component. The handle assemblies are fixed to the two sides of a bottom frame, the lever fulcrum assembly is fixed to the lower portion of a vehicle, the two ends of the first pull rod assembly are movably connected with the handle assemblies and the lever fulcrum assembly through pin shafts respectively, and the second pull rod assembly is movably connected with the rotating shaft assembly through a pin shaft. The tension spring seat is fixed in the middle of the bottom frame, one end of the tension spring is sleeved with the tension spring seat, the other end of the tension spring is connected with the rotating shaft assembly, and the third pull rod assembly is movably connected with the rotating shaft assembly and the locking lever assembly through pin shafts. The two-stage locking mechanism is manually opened and closed, ground facilities do not need to be independently arranged, and the manufacturing cost is reduced.
本发明公开了一种铁路漏斗车底门的二级锁闭机构,涉及铁路漏斗车技术领域,包括手柄组件、第一拉杆组件、杠杆支点组件、第二拉杆组件、转动轴组件、拉簧座、拉簧、第三拉杆组件以及锁闭杠杆组件;所述手柄组件固定于底架两侧,所述杠杆支点组件固定于车辆下方,所述第一拉杆组件的两端分别与所述手柄组件和所述杠杆支点组件通过销轴活动连接,所述第二拉杆组件通过销轴与所述转动轴组件活动连接,所述拉簧座固定于底架中部,所述拉簧一端套于拉簧座内,另一端连接所述转动轴组件,所述第三拉杆组件通过销轴分别与所述转动轴组件和所述锁闭杠杆组件活动连接。本发明采用手动开闭二级锁闭机构,无需单独设置地面设施,降低制造成本。
Secondary locking mechanism of bottom door of railway hopper car
一种铁路漏斗车底门的二级锁闭机构
07.02.2025
Patent
Elektronische Ressource
Chinesisch
IPC: | B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES |
Secondary locking device, hopper car bottom door and hopper car
Europäisches Patentamt | 2017
|Link type secondary locking device, hopper car bottom door and hopper car
Europäisches Patentamt | 2016
|Locking device of bottom door opening and closing mechanism of railway hopper car
Europäisches Patentamt | 2023
|