Title:
STAIR STRUCTURE FOR RAIL TRAIN, AND RAIL TRAIN
Document Type and Number:
WIPO Patent Application WO/2023/130891
Kind Code:
A1
Abstract:
Provided are a stair structure for a rail train, and a rail train; the stair structure comprises: a step panel; vertical plates are connected to two sides of the step panel; the step panel and the vertical plates are provided with weight reduction holes; mounting bases are provided at two lateral ends of the step panel, and the mounting bases and the step panel are an integrally formed structure; the backs of each of the step surfaces of the step panel are provided with transverse reinforcing ribs, and a plurality of groups of mounting seat reinforcing ribs are disposed at the back surface of the step panel near the mounting bases disposed thereunder; in the present application, a step frame comprising a step panel and vertical plates uses optimized step surface plates and reinforcing rib structures etc., so as to reduce weight to the greatest extent possible and ensure the weight balance of the entire vehicle.
Inventors:
CHEN HEJIU (CN)
LI ZHAO (CN)
WANG AIJIAO (CN)
LI YING (CN)
YANG HONGNA (CN)
SUN HAILONG (CN)
LI ZHAO (CN)
WANG AIJIAO (CN)
LI YING (CN)
YANG HONGNA (CN)
SUN HAILONG (CN)
Application Number:
PCT/CN2022/137601
Publication Date:
July 13, 2023
Filing Date:
December 08, 2022
Export Citation:
Assignee:
CRRC TANGSHAN CO LTD (CN)
International Classes:
B61D23/00
Foreign References:
| CN114368401A | 2022-04-19 | |||
| CN114248811A | 2022-03-29 | |||
| CN210707392U | 2020-06-09 | |||
| CN111319640A | 2020-06-23 | |||
| CN107249958A | 2017-10-13 | |||
| CN107738618A | 2018-02-27 | |||
| CN207260643U | 2018-04-20 | |||
| CN207565479U | 2018-07-03 | |||
| CN214875170U | 2021-11-26 | |||
| DE102005057902A1 | 2007-06-06 |
Attorney, Agent or Firm:
IPFUTURE INTELLECTUAL PROPERTY LAW OFFICE (CN)
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