Title:
COUPLER CUSHION DEVICE MOUNTING STRUCTURE PUSHED BY SMALL TIGHTENING TORQUE IN COMPACT SPACE
Document Type and Number:
WIPO Patent Application WO/2022/247104
Kind Code:
A1
Abstract:
A coupler cushion device mounting structure, comprising: a double-head stud (3), which passes through a mounting process hole (7) of a vehicle body structure (8); a nut (1), which is screwed on a first end of the double-head stud (3); a pushing nut (5), which is screwed on a second end of the double-head stud (3) and is provided with a plurality of axial screw holes in the circumferential direction; and a plurality of pushing screws (6), which are screwed into the axial screw holes in the circumferential direction of the pushing nut (5), the head of the pushing nut (5) abutting against a coupler cushion device (9) by means of a hard washer (4), so that the coupler cushion device (9) is clamped and fixed to the vehicle body structure (8). By means of the cooperation of the double-head stud, the nut, the pushing nut, and the plurality of pushing screws, the double-head stud can penetrate from a coupler side to a vehicle body side, and a plurality of small screws are fastened on the side of the coupler cushion device, so that the problem that bolts cannot penetrate from the vehicle body side to the coupler side due to the small closed space of the vehicle body side is solved. Also disclosed are a coupler cushion device comprising the mounting structure, a railway vehicle, and a mounting method and a disassembling method for the cushion device.
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| WO/2020/042430 | RAIL VEHICLE AND COUPLING BOX THEREOF |
| WO/2019/109856 | TRACTION STRUCTURE AND STRADDLE-TYPE MONORAIL VEHICLE |
Inventors:
WANG XINGWEN (CN)
LIANG JUXING (CN)
LI KANG (CN)
LIU YULONG (CN)
LIANG JUXING (CN)
LI KANG (CN)
LIU YULONG (CN)
Application Number:
PCT/CN2021/123698
Publication Date:
December 01, 2022
Filing Date:
October 14, 2021
Export Citation:
Assignee:
CRRC NANJING PUZHEN CO LTD (CN)
International Classes:
B61G9/20
Foreign References:
| CN113120021A | 2021-07-16 | |||
| CN211599493U | 2020-09-29 | |||
| CN213088471U | 2021-04-30 | |||
| CN200964116Y | 2007-10-24 | |||
| CN110539773A | 2019-12-06 | |||
| CN212098860U | 2020-12-08 | |||
| US20140348610A1 | 2014-11-27 |
Attorney, Agent or Firm:
NANJING TONGZE PATENT AGENCY FIRM (LIMITED LIABILITY PARTNER SHIP) (CN)
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