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Title:
ANTI-OFF TYPE BOTTOM PLATE OF ELECTRIC MULTIPLE UNIT CONVERTER DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/103849
Kind Code:
A1
Abstract:
An anti-off type bottom plate of a high-speed electric multiple unit converter device. A bolt installation hole, a tension lock installation hole and an anti-off lock installation hole are provided on a bottom plate (4). The bottom plate (4) and a box body are connected by means of fastening a bolt (1) to achieve first-level anti-off of the bottom plate (4). A tension lock (2) is installed on the bottom plate by means of the tension lock installation hole, and a lock tongue thereof achieves lap-joint connection with a frame of the box body by means of rotation to achieve second-level anti-off of the bottom plate. An anti-off lock (3) is installed on the base plate by means of the anti-off lock installation hole, and a lock tongue thereof achieves lap-joint connection with the frame of the box body by means of rotation to achieve third-level anti-off of the bottom plate. The connection between the bottom plate of the converter device and the box body simultaneously employs three types of connection manners: fastening bolts, tension locks, and anti-unlocking, which achieves the multi-level anti-off function of the bottom plate and reduces the risk of the bottom plate falling off.

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Inventors:
GUAN JUNQING (CN)
WEI GANG (CN)
DONG QIZHENG (CN)
SHEN DI (CN)
WU NAN (CN)
DING QIAOYA (CN)
HU MINGQING (CN)
XIE PENG (CN)
Application Number:
PCT/CN2019/119615
Publication Date:
May 28, 2020
Filing Date:
November 20, 2019
Export Citation:
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Assignee:
CRRC YONGJI ELECTRIC CO LTD (CN)
International Classes:
B61D17/10
Foreign References:
CN109278774A2019-01-29
CN104201901A2014-12-10
CN207875408U2018-09-18
CN201610143U2010-10-20
CN208078866U2018-11-09
JPH08253151A1996-10-01
CN105071636A2015-11-18
US4893525A1990-01-16
FR2374193A21978-07-13
Attorney, Agent or Firm:
LEADER PATENT & TRADEMARK FIRM (CN)
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