Railway vehicle fairing, railway vehicle opening-closing mechanism and self-locking mechanism

Abstract

The invention discloses a railway vehicle fairing, a railway vehicle opening-closing mechanism and a self-locking mechanism; the self-locking mechanism comprises a first driving shaft, rotators, a drive element, a first push rod, a first shaft and a first guide device; the rotators may rotate relative to a bottom plate of the opening-closing mechanism; when the drive element expands and contracts,the first driving shaft and the rotators are driven to synchronously rotate; the first push rod may contract and rotate along with rotation of the first driving shaft; the other side of the first shaft may expand and contract along with the contractive rotation of the first push rod, may hold against a closure position limiter of the opening-closing mechanism after the opening-closing mechanism closes, and may hold against an opening position limiter of the opening-closing mechanism after the opening-closing mechanism opens. The railway vehicle fairing, the railway vehicle opening-closing mechanism and the self-locking mechanism have the advantages that after the self-locking mechanism crosses a dead point, elastic rods of the first push rod maintain elasticity, the extension position ofa second shaft even if when the drive element is idle, that is to say, retracting of the second shaft is never caused, and self-locking of the self-locking mechanism is achieved.

Description

technical field [0001] The invention relates to the technical field of rail transit, in particular to a rail vehicle air guide cover, an opening and closing mechanism and a self-locking locking mechanism. Background technique [0002] The opening and closing mechanism is used as the skeleton and driving mechanism of the front shroud of the EMU. When running in a single train, the shroud is closed and locked to form a complete aerodynamic shape of the train, reduce wind resistance and wind noise, and avoid The internal coupler and other components are damaged by rain and snow; when reconnection is required, the shroud should be in the open and locked position, so that the coupler can be connected completely and without obstacles, and can adapt to the sway angle of the coupler when running on different curve radii impact. [0003] The locking mechanism for the opening and closing mechanism is generally an independent component that locks the opening and closing mechanism when...

AI Technical Summary

Problems solved by technology

[0004] The locking mechanism for the traditional opening and closing mechanism is generally a bolt-type locking. Due to the gap between the lock pin and the lock groove, when the opening and closing mechanism loses the air source, the locking is not firm enough, and there is a certain movable gap in the opening and closing mechanism. When the rail vehicle is running It will cause a slight rotation of the moving arm of the opening and closing mechanism, which will damage the mechanism. At the same time, it will also cause the front-end shroud to be closed tightly, and rain, snow, and debris will enter the inside of the shroud, causing damage to the internal coupler and other components. must violate

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