Lower railway truck door locking device

Abstract

The invention relates to the field of railway transportation equipment, in particular to a railway truck locking device, which comprises a lock base and a coupler knuckle lock. A key technology is that: the lower end of the lock base is provided with a coupler knuckle lock supporting surface of which two sides are provided with a web plate respectively; the lower end of the two web plates are provided with an anti-tripping hole respectively; anti-tripping pin shafts are arranged by the anti-tripping holes; an elongated through hole, a counterbore and an elongated counterbore are formed in oneanti-tripping hole; the middle part of the coupler knuckle lock is provided with a slotted hole; a plane is formed on a lateral surface at the top end of the coupler knuckle lock; an outer surface atthe lower end of the coupler knuckle lock is a circular surface which is supported by the coupler knuckle lock supporting surface; one end of the anti-tripping pin shaft is provided with a circular table; and an anti-tripping safety pin is inserted into the middle part of the anti-tripping pin shaft. In locking, the anti-tripping safety pin is in fit with the elongated counterbore to limit the degree of freedom of the anti-tripping safety pin and realize safe locking; in unlocking, the circular table is in fit with the counterbore to prevent the anti-tripping safety pin from being broken after the unlocking, prolong the service life of the locking device, effectively solve the problem of breakage of a fold of a lower door and improve transportation safety.

Description

technical field [0001] The invention relates to the field of railway transport equipment, in particular to a locking device for railway wagons. Background technique [0002] The lower side door of the railway gondola car needs to be locked during transportation. At present, a hasp is generally used to restrict the lateral movement of the lower side door hinge to achieve locking. The disadvantage of this locking device is: when unloading, the hasp returns to the locked position with the vibration generated during unloading, and when the lower side door is closed, the hinge of the lower side door often collides with the hasp, resulting in a lower The hinge of the side door is broken, which not only increases the maintenance cost, but also reduces the safety of vehicle operation. Contents of the invention [0003] The problem to be solved by the present invention is to provide a locking device that can conveniently solve the problem of broken hinges of the lower side door of...

AI Technical Summary

Problems solved by technology

The disadvantage of this locking device is: when unloading, the hasp returns to the locked position with the vibration generated during unloading, and when the lower side door is closed, the hinge of the lower side door often collides with the hasp, resulting in a lower The side door hinge is broken, which not only increases the maintenance cost, but also reduces the safety of vehicle operation

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