Side door rain protection for railway vehicles

Abstract

A rainproof device suitable for a side door of a railroad car, comprising: a sealing rubber strip 1 (5), a sealing rubber strip 2 (3), a bidirectional flow limiting device, a rain blocking strip (6), an expandable and retractable air bag (7), and a gas connection tube. The sealing rubber strip 1 (5) is provided at the bottom of the side door panel (2). The sealing rubber strip 2 (3) is provided around a side door frame. The bidirectional flow limiting device comprises a flow limiting device A (8) and a flow limiting device B (4). The flow limiting device A (8) comprises a connector 1 (81), a flat spring 1 (82), a pushing pin (84), and an elastic connector (85). The flow limiting device B (4) comprises a connector 2 (41) and a flat spring 2 (42). The expandable and retractable air bag (7) is provided within a semi-sealed cavity of the rain blocking strip (6). When the side door panel (2) is tightly closed, the flow limiting device A (8) and flow limiting device (B) are inserted into each other to form a sealed engagement. The pushing pin (84) can move forwards and backwards, and can simultaneously spring open the flat spring 1 (82) and flat spring 2 (42). A sealed cavity 1 (87) communicates with a sealed cavity 2 (45) so as to allow expansion of the expandable and retractable air bag. The invention can realize complete sealing of a car door without making changes to an existing car body or car door, and addresses a rain leaking issue of a folding door of the prior art at a lower cost.

Description

technical field [0001] The invention relates to a rainproof device for a side door of a railway passenger car, in particular to a rainproof device for a side door suitable for a railway vehicle. Background technique [0002] The side doors of Type 25 railway passenger cars mostly use hinged doors. In order to ensure the driving safety of the vehicle and the personal safety of passengers, the hinged door is generally set to open inward, which can prevent the door from opening suddenly during the operation of the vehicle. At the same time, exceeding the vehicle limit can also avoid the sudden opening of the door during the operation of the vehicle, causing the passengers leaning on the door to fall for no reason. [0003] At present, the side door sealing scheme of passenger car is as follows: figure 1 As shown: the car body is provided with a door frame and threshold, and a sealing strip is provided around the hinged door. When the door is closed, the sealing effect of the ...

AI Technical Summary

Problems solved by technology

[0004] The problem with this scheme is: in order to ensure that the side door can be opened and closed normally and smoothly, the bottom of the door panel and the weather strip must be higher than the top of the threshold, so that when viewed from the outside of the car body, there is a gap between the door panel and the weather strip and the threshold. The gap that cannot be eliminated, during the fast running of the train, rainwater will seep into the car along the slope of the door sill under the action of wind, soaking the wooden floor and other equipment in the car

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