Title:
BOTTOM DOOR OPENING AND CLOSING MECHANISM AND HOPPER CAR
Document Type and Number:
WIPO Patent Application WO/2021/128790
Kind Code:
A1
Abstract:
A bottom door opening and closing mechanism and a hopper car. A bottom door (4) of the hopper car is disposed at the bottom of a vehicle body (8) in an openable and closable mode by means of the bottom door opening and closing mechanism; a first end of a first connecting rod (2) of the bottom door opening and closing mechanism is rotatably connected to the bottom of the vehicle body (8); a first end of a second connecting rod (3) is rotatably connected to a second end of the first connecting rod (2); a second end of the second connecting rod (3) is rotatably connected to a first end of a crank (5); a second end of the crank (5) is rotatably connected to the bottom of the vehicle body (8); the middle of the crank (5) is rotatably connected to a first end of a pull rod (6); the second end of the crank (5) is disposed opposite to the first end of the first connecting rod (2); the first end of the crank (5) and the second end of the crank (5) are both located on the same side of the middle of the crank (5); a second end of the pull rod (6) is rotatably connected to the bottom of the bottom door (4); the top of the bottom door (4) is rotatably connected to the vehicle body (8); and a stop block (10) is fixedly disposed on the vehicle body (8), and the stop block (10) is located on the lower side when the crank (5) is located at the position of a dead point.
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Inventors:
XU DONGHUA (CN)
LIU FENGWEI (CN)
TANG CHUQIANG (CN)
LI XIAOJUN (CN)
SHI CHUNJIANG (CN)
HU YUEMING (CN)
YAO LINGYUN (CN)
WU YUBO (CN)
YAN RUI (CN)
WANG SONG (CN)
LIU FENGWEI (CN)
TANG CHUQIANG (CN)
LI XIAOJUN (CN)
SHI CHUNJIANG (CN)
HU YUEMING (CN)
YAO LINGYUN (CN)
WU YUBO (CN)
YAN RUI (CN)
WANG SONG (CN)
Application Number:
PCT/CN2020/099703
Publication Date:
July 01, 2021
Filing Date:
July 01, 2020
Export Citation:
Assignee:
CRRC YANGTZE CO LTD (CN)
International Classes:
B61D7/26
Foreign References:
| CN111038534A | 2020-04-21 | |||
| CN111038533A | 2020-04-21 | |||
| CN111038535A | 2020-04-21 | |||
| CN106627609B | 2018-11-16 | |||
| US20180305967A1 | 2018-10-25 |
Attorney, Agent or Firm:
BEIJING ZHONGDA DEQUAN IP AGENCY CO., LTD. (CN)
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