公开(公告)号：US20170239761A1

公开(公告)日：2017-08-24

申请号：US15504614

申请日：2015-09-21

申请人： CRRC QINGDAO SIFANG CO., LTD.

发明人： Shixin ZHANG ,  Xiaojun DENG ,  Shaoqing LIU ,  Lichun MENG ,  Xiaocheng WANG ,  Shitao LI ,  Zhanling ZHANG ,  Li DONG

IPC分类号： B23K37/04 ,  B23K26/14

CPC分类号： B23K37/0435 ,  B23K26/348 ,  B23K26/702 ,  B23K37/0408 ,  B23K37/0443

摘要： A welding clamping device includes a base plate and two positioning slide blocks, each of the positioning slide blocks includes a slide base and a cam, wherein the slide base includes a support plate and two cam holders fixed at two opposite ends of the support plate; the cam is rotatably mounted between the two cam holders via a camshaft for press-fitting a workpiece to be welded; and the base plate is provided with a slide slot, and the two positioning slide blocks are relatively slidably mounted in the slide slot. The device can better position a workpiece to be welded, improving welding quality; and clamping and unloading are easy and take a short time, improving welding efficiency.

公开(公告)号：US20190351630A1

公开(公告)日：2019-11-21

申请号：US16484783

申请日：2018-02-01

申请人： CRRC QINGDAO SIFANG CO., LTD. ,  CG RAILl -CHINESISCH-DEUTSCHES FORSCHUNGS-UND ENTWICKLUNGSZENTRUM FüR BAHN-

发明人： Sansan DING ,  Xiaojun DENG ,  Yuwen LIU ,  Xu CHEN ,  Li DONG ,  Mao CAI ,  Xu ZHANG ,  Werner HUFENBACH ,  Andreas ULBRICHT

IPC分类号： B29C70/54 ,  B29C70/34 ,  B29C70/44 ,  B29C33/52

摘要： The application relates to a method for producing a hollow support from a fiber composite material, to a core designed as a hollow body, to the use of said core, and to the use of said hollow support made from fiber composite material.

公开(公告)号：US20190217874A1

公开(公告)日：2019-07-18

申请号：US16327855

申请日：2017-08-26

申请人： CRRC QINGDAO SIFANG CO., LTD.

发明人： Xiaojun DENG ,  Peng LIN ,  Liangkui JIANG ,  Li DONG ,  Huaxin HU ,  Qingjing DONG ,  Lan LIN

IPC分类号： B61D1/06

CPC分类号： B61D1/06 ,  B61D3/02

摘要： A double-track vehicle, comprising upper and lower carriages, which are respectively a passenger carriage (1) for providing passenger seats and a cargo carriage (2) for placing cargo, the passenger carriage (1) and the cargo carriage (2) being respectively provided with a passenger door (3) for passengers to get on and off and a cargo door (4) for loading and unloading cargo. The vehicle carries out simultaneous transport of passengers and cargo, allowing for the function of the rail vehicle to no longer be singular and largely reducing transport and maintenance costs. At the same time, passenger transport and cargo transport are divided into two layers, which completely separates cargo transport and passenger transport, thereby providing passengers with a comfortable seating environment and improving seating safety.