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Title:
CARRIAGE SIDEWALL FRAMEWORK UNIT, SIDEWALL, AND TRAIN CARRIAGE
Document Type and Number:
WIPO Patent Application WO/2019/024424
Kind Code:
A1
Abstract:
A carriage sidewall framework unit (10), a sidewall (1), and a train carriage. The sidewall framework unit (10) comprises two long side columns (11), a plurality of longitudinal beams (12), and a plurality of short side columns (13). The long side columns (11), the longitudinal beams (12), and the short side columns (13) are inserted into and connected to each other to form the grid-like arrangement of the framework unit (10). A plurality of framework units (10) are fixedly connected by means of reinforcing beams (16), and an outer side of the framework unit (10) is welded to a wall panel (17) by means of resistance spot welding, to form the carriage side wall (1). The use of a new welding process to weld the wall panel (17) to an outer side of the framework unit (10) reduces deformation of the outer wall panel (17) during installation and welding and improves the flatness of the carriage sidewall (1). In addition, the sidewall (1) does not form a closed structure after welding, thereby facilitating welding, reducing corrosion of the side wall (1), and better addressing user requirements.

Inventors:
WANG, Zhiqun (No. 3, Changqian Road Fengrun Distric, Tangshan Hebei 5, 063035, CN)
SHI, Baoling (No. 3, Changqian Road Fengrun Distric, Tangshan Hebei 5, 063035, CN)
LI, Zhishen (No. 3, Changqian Road Fengrun Distric, Tangshan Hebei 5, 063035, CN)
MA, Ziyi (No. 3, Changqian Road Fengrun Distric, Tangshan Hebei 5, 063035, CN)
LING, Rong (No. 3, Changqian Road Fengrun Distric, Tangshan Hebei 5, 063035, CN)
Application Number:
CN2017/120323
Publication Date:
February 07, 2019
Filing Date:
December 29, 2017
Export Citation:
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Assignee:
CRRC TANGSHAN CO., LTD. (No. 3, Changqian Road Fengrun Distric, Tangshan Hebei 5, 063035, CN)
International Classes:
B61D17/08
Attorney, Agent or Firm:
IPFUTURE INTELLECTUAL PROPERTY LAW OFFICE (9th Floor, Golder Plaza10# Huayuan East Road, Haidian District, Beijing 1, 100191, CN)
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