Title:
THRUST CONVERSION MECHANISM FOR GAUGE-VARIABLE WHEEL SET, UNLOCKING DEVICE, AND GAUGE-VARIABLE WHEEL SET
Document Type and Number:
WIPO Patent Application WO/2022/021864
Kind Code:
A1
Abstract:
A thrust conversion mechanism for a gauge-variable wheel set, an unlocking device, and a gauge-variable wheel set. A thrust conversion mechanism (100) comprises a mounting base (101) and a pushing shaft (102), wherein the mounting base (101) is provided with a horizontal through hole in a horizontal direction; the pushing shaft (102) movably passes through the horizontal through hole; an open groove is formed where the pushing shaft (102) is opposite the mounting base (101) and is located at one of the pushing shaft (102) and the mounting base (101), the axis of the open groove is perpendicular to the axis of the horizontal through hole, a positioning member is mounted in the open groove, and the positioning member is connected to the open groove by means of an elastic pre-tightening member; and the other one of the pushing shaft (102) and the mounting base (101) is configured with a positioning recess, and a positioning end of the positioning member matches the positioning recess.
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Inventors:
WANG HAITAO (CN)
WANG XU (CN)
QIAO QINGFENG (CN)
YIN HAO (CN)
HU HAITAO (CN)
WANG XU (CN)
QIAO QINGFENG (CN)
YIN HAO (CN)
HU HAITAO (CN)
Application Number:
PCT/CN2021/077343
Publication Date:
February 03, 2022
Filing Date:
February 23, 2021
Export Citation:
Assignee:
CRRC QINGDAO SIFANG CO LTD (CN)
International Classes:
B61F7/00; B60B35/00; B60B37/00
Foreign References:
| CN111806497A | 2020-10-23 | |||
| CN108909360A | 2018-11-30 | |||
| CN107521519A | 2017-12-29 | |||
| CN202358119U | 2012-08-01 | |||
| US20180118234A1 | 2018-05-03 |
Other References:
See also references of EP 4043315A4
Attorney, Agent or Firm:
CN-KNOWHOW INTELLECTUAL PROPERTY AGENT LIMITED (CN)
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