Railway vehicle and derailment safety device thereof

Patent metadata

Field	Value
Publication number	US-10471975-B2
Application number	US-201515504940-A
Country	US
Kind code	B2
Filing date	Nov 16, 2015
Priority date	Feb 5, 2015
Publication date	Nov 12, 2019
Grant date	Nov 12, 2019

Abstract

An anti-derailment safety device is in a shape of an inverted letter L and includes a transverse portion and a longitudinal portion perpendicular to the transverse portion at a side below the transverse portion; two sides of the transverse portion in a width direction of the transverse portion are each provided with an installation seat formed by a wing plate extending outwardly, and bolt holes are provided on the installation seat; and an inner side surface of the longitudinal portion is a stopping surface.

First claim

What is claimed is:

1. An anti-derailment safety device, wherein the anti-derailment safety device is in a shape of an inverted letter L, and comprises a transverse portion and a longitudinal portion perpendicular to the transverse portion at a side below the transverse portion; two sides of the transverse portion in a width direction of the transverse portion are each provided with an installation seat formed by a wing plate extending outwardly, and bolt holes are provided on the installation seat; and an inner side surface of the longitudinal portion is a stopping surface; and
wherein a lower surface of the transverse portion is provided with a concave portion, a radian of a contact section of the concave portion is equal to a radian of a top surface of a rail, and the concave portion smoothly transits to the stopping surface by a circular arc portion at an intersection of the transverse portion and the longitudinal portion.

2. The anti-derailment safety device according to claim 1 , wherein the transverse portion is a transverse stopping plate, the longitudinal portion is a vertical stopping plate, and the transverse stopping plate and the vertical stopping plate are formed as an integrated structure.

3. The anti-derailment safety device according to claim 2 , wherein a thickness of the wing plate is smaller than a thickness of the transverse portion, and a top surface of the wing plate and a top surface of the transverse portion are located in a same plane.

4. The anti-derailment safety device according to claim 3 , wherein the stopping surface-inclines inward by 3 degrees to 5 degrees in a longitudinal direction from an end portion to a root portion.

5. The anti-derailment safety device according to claim 4 , wherein the stopping surface-inclines inward by 4 degrees in the longitudinal direction from the end portion to the root portion.

6. The anti-derailment safety device according to claim 4 , wherein a width of an end portion of the longitudinal portion is smaller than a width of a body portion of the longitudinal portion, and a transition inclined surface or a transition arc surface is provided between the end portion of the longitudinal portion and each of lateral surfaces at two sides of the end portion.

7. The anti-derailment safety device according to claim 3 , wherein a width of an end portion of the longitudinal portion is smaller than a width of a body portion of the longitudinal portion, and a transition inclined surface or a transition arc surface is provided between the end portion of the longitudinal portion and each of lateral surfaces at two sides of the end portion.

8. The anti-derailment safety device according to claim 2 , wherein a width of an end portion of the longitudinal portion is smaller than a width of a body portion of the longitudinal portion, and a transition inclined surface or a transition arc surface is provided between the end portion of the longitudinal portion and each of lateral surfaces at two sides of the end portion.

9. The anti-derailment safety device according to claim 1 , wherein a radius of the arc concave portion is 80 mm.

10. The anti-derailment safety device according to claim 1 , wherein a width of an end portion of the longitudinal portion is smaller than a width of a body portion of the longitudinal portion, and a transition inclined surface or a transition arc surface is provided between the end portion of the longitudinal portion and each of lateral surfaces at two sides of the end portion.

11. A railway vehicle, comprising a train body, a bogie and anti-derailment safety devices, wherein the anti-derailment safety devices are the anti-derailment safety device according to claim 1 , and the anti-derailment safety devices are symmetrically fixed at lower portions of axle box bodies of the bogie by bolts.

12. The railway vehicle according to claim 11 , wherein in a height direction, a distance between a tail end of the longitudinal portion and a top surface of a rail ranges from 90 mm to 100 mm, inclusive.

Assignees

• Crrc Qingdao Sifang Co Ltd

Inventors

• Zhang Zhenxian
• Ma Lijun
• Zou Xiaolong
• Kuai Rongsheng
• Zhang Zhibo

Classifications

• B61F9/00 Primary

  Rail vehicles characterised by means for preventing derailing, e.g. by use of guide wheels · CPC title

• E01B5/18

  Guard rails; Connecting, fastening or adjusting means therefor · CPC title