Railway wagon sliding recessed doors

Abstract

The invention discloses a sliding embedded type car door of a railway freight car. The sliding embedded type car door of the railway freight car comprises a door body, an upper supporting base and a lower supporting base, wherein the upper supporting base and the lower supporting base are arranged on the two sides of the door body, hollow locking rods are arranged in corresponding installation holes of the upper supporting base and the lower supporting base, door pivoted rods are arranged in the hollow locking rods, the upper end and the lower end of each door pivoted rod are matched with an upper slide way and a lower slide way through an upper crank and a lower crank, a handle is fixed on each door pivoted rod, and the handles are rotated to enable the door body to transversely move in the direction of a door frame. A bi-directional door lock is installed in the middle of the door body, the telescopic control ends on the two sides of the bi-directional door lock are respectively connected with one end of a matched pull rod, the other end of each pull rod is connected with one locking cam, each locking cam is fixed on the hollow locking rod corresponding to the position of each pull rod, the door frame on the outer side of each locking cam is provided with a lock base matched with the locking cam, the pull rods drive the locking cams and the hollow locking rods to rotate, the locking cams and the lock bases can be meshed, and accordingly the door body is locked. The sliding embedded type car door of the railway freight car is simple and reliable in structure, the load-carrying performance of a car body to the car door is good, and the sealing performance is excellent.

Description

technical field [0001] The invention relates to a door of a railway freight car, in particular to a sliding embedded door of a railway freight car which requires high sealing performance. Background technique [0002] With the development of my country's railway transportation technology, fast loading and unloading freight will be the development direction of railway freight. Existing railway freight car doors are mainly divided into two types: split sliding doors and split revolving doors. The split sliding doors are generally composed of two doors. The lower part of the door is equipped with rollers. The lower door can be opened and closed, and the upper part of the door is equipped with a slideway to prevent the door from toppling over; the revolving door is also composed of two doors, and the door is connected to the door frame by a hinge. The above two kinds of car doors all have door locks or special devices to ensure that the car doors are in a normally locked state ...

AI Technical Summary

Problems solved by technology

But these two kinds of car doors have the following disadvantages: the side-by-side sliding car door is in partial contact with the car body when it is closed, and the stressed parts of the car door collide with the car body and are easily damaged; swing space

Moreover, the sealing performance of the above two kinds of car doors is poor, neither of them can completely block the erosion of the goods by rain and snow, and the size of the car doors cannot be designed too large due to the limitation of the structure.

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