Title:
MULTI-STAGE ENERGY ABSORPTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/231424
Kind Code:
A1
Abstract:
A multi-stage energy absorption device, comprising an energy absorption element (1), a cutting device (2), a mounting plate (3), a guide driving device (4) and a signal control device (6), wherein the energy absorption element (1) comprises an anti-creeper (11) and a propulsion energy-absorption tube (12); the guide driving device (4) has a cavity with one end open, and one end of the propulsion energy-absorption tube (12) is arranged in the cavity of the guide driving device (4); the mounting plate (3) is in sealed connection with the guide driving device (4); a cutting portion of the cutting device (2) abuts against the energy absorption element (1); and the signal control device (6) is configured to transmit an emergency collision signal from a vehicle system to the guide driving device so as to drive the energy absorption element (1) to pop up. By means of cutting-type energy absorption, the multi-stage energy absorption device can absorb a large amount of energy in a collision while avoiding an excessively large interface force of a vehicle body.
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Inventors:
LIU YONGQIANG (CN)
PAN DENG (CN)
SU KE (CN)
LUO BAO (CN)
HANG HUIFENG (CN)
SHUI WENFEI (CN)
LIU BICHENG (CN)
PAN DENG (CN)
SU KE (CN)
LUO BAO (CN)
HANG HUIFENG (CN)
SHUI WENFEI (CN)
LIU BICHENG (CN)
Application Number:
PCT/CN2023/072859
Publication Date:
December 07, 2023
Filing Date:
January 18, 2023
Export Citation:
Assignee:
CRRC ZHUZHOU LOCOMOTIVE CO LTD (CN)
International Classes:
B61F19/04
Foreign References:
| CN105292164A | 2016-02-03 | |||
| CN115027523A | 2022-09-09 | |||
| CN110341744A | 2019-10-18 | |||
| CN112141155A | 2020-12-29 | |||
| EP1310416A1 | 2003-05-14 |
Attorney, Agent or Firm:
CHANGSHA ZONEKEY PATENT LAW FIRM (CN)
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