Title:
END COVER ASSEMBLY, AIR CYLINDER, TREAD SWEEPER AND RAILWAY VEHICLE
Document Type and Number:
WIPO Patent Application WO/2021/068899
Kind Code:
A1
Abstract:
An end cover assembly, an air cylinder, a tread sweeper and a railway vehicle. The end cover assembly (100) is used for sealing an air inlet end of an air cylinder (200) of a tread sweeper (300), and comprises a cylinder cover (110), wherein a first external thread column body (111) extending and protruding is arranged on an inner side end face (110a) of the cylinder cover (110), and is mounted matching the air cylinder (200); a second external thread column body (112) extending and protruding is arranged on an outer side end face (110b) of the cylinder cover (110); and the cylinder cover (110) is provided with a through mounting hole (113), and the mounting hole (113) extends to penetrate the first external thread column body (111) and the second external thread column body (112) and is used for arranging an air core (230) and an elastic pull rod (240); and a gland (120), wherein a threaded hole (121) matching the second external thread column body (112) is provided on an inner side end face (120a) of the gland (120); a throttle air vent hole (122) is provided between the threaded hole (121) and an outer side end face (120b) of the gland (120); a first mounting groove (123) is further provided between the inner side end face (120a) of the gland (120) and the threaded hole (121); and in an assembled state, the inner side end face of the gland (120) abuts against the outer side end face (110b) of the cylinder cover (110), and sealing is provided by means of sealing rings (130, 140 and 150) arranged inside the first mounting groove (123).
Inventors:
GOU QINGBING (CN)
WU ANXU (CN)
FENG CHANG (CN)
ZHANG YUCHEN (CN)
WU BO (CN)
XU HAO (CN)
WANG ZICHEN (CN)
CHEN XUN (CN)
WANG DONGDONG (CN)
WAN MENG (CN)
WU ANXU (CN)
FENG CHANG (CN)
ZHANG YUCHEN (CN)
WU BO (CN)
XU HAO (CN)
WANG ZICHEN (CN)
CHEN XUN (CN)
WANG DONGDONG (CN)
WAN MENG (CN)
Application Number:
PCT/CN2020/120029
Publication Date:
April 15, 2021
Filing Date:
October 09, 2020
Export Citation:
Assignee:
CRRC CHANGZHOU TECH MARK IND CO LTD (CN)
CRRC QISHUYAN INST CO LTD (CN)
CRRC QISHUYAN INST CO LTD (CN)
International Classes:
B60S1/68; B61C15/08; B61F5/50
Foreign References:
| CN211335905U | 2020-08-25 | |||
| CN201083243Y | 2008-07-09 | |||
| CN104454757A | 2015-03-25 | |||
| CN206598820U | 2017-10-31 | |||
| JP2008207704A | 2008-09-11 | |||
| CN102345652A | 2012-02-08 | |||
| CN209082416U | 2019-07-09 |
Attorney, Agent or Firm:
CHINA PATENT AGENT (H.K.) LTD. (CN)
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