Double-flow system vehicle built-in air-tight door

Abstract

The invention relates to the technical field of railway vehicles, in particular to a double-flow-system vehicle built-in air-tight door which comprises two upper guide rails and two door leaves. Upper guide wheels are fixedly arranged at the tops of the door leaves; the two upper guide rails are respectively matched with the upper guide wheels of the corresponding door leaves; lower guide rails are fixedly arranged on the lower portions of the door leaves; the door further comprises two lower swing arms, each lower swing arm comprises a lower supporting rolling wheel assembly, and rolling wheels in the two lower supporting rolling wheel assemblies are matched with the lower guide rails of the corresponding door leaves respectively; the upper guide rail and the lower guide rail respectively comprise a linear section and a bent section; the opposite sections of the two upper guide rails are bent sections, and the other parts are linear sections; the opposite sections of the two lower guide rails are bent sections, and the rest parts are linear sections; and the directions of the upper guide rail bending section and the lower guide rail bending section vertical to the door leaf are opposite. Compared with an existing built-in door, when the door leaf reaches the closed state, the sealing performance can be greatly improved.

Description

technical field [0001] The invention relates to the technical field of rail vehicles, in particular to a built-in airtight door of a dual-flow vehicle. Background technique [0002] Rail vehicles are more and more popular because of their advantages of convenience, speed, and punctuality, and the components of the vehicles are also updated rapidly. At present, the doors of rail vehicles can be divided into built-in doors and sliding doors according to the movement form of the door leaves. [0003] When the sliding door is closed, the door leaf is inserted into the door of the car from the inside or outside of the car to make it closed and sealed; Because the sliding distance of the sliding door is very large in the process of opening and closing, in the case of crowded passengers, the door leaf will be squeezed by the passengers too much and cannot be closed normally. Translational movement can circumvent such problems. When the built-in door is closed, the door leaves mo...

AI Technical Summary

Problems solved by technology

However, in order to ensure smooth movement of the built-in door, there will be a certain gap between the door leaf and the side wall of the compartment.

However, since the motion trajectory of the door leaf of the built-in door is always on a straight line, after the door leaf is closed, the gap between the door leaf and the side wall of the compartment still exists, which leads to unsatisfactory sealing effect of the built-in door after closing the door, while the sealing effect If it is not ideal, it will affect the sound insulation and airtightness of the cabin, thereby reducing the ride experience of the passengers

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