Title:
THREE-STAGE TILTING AIR CYLINDER AND TILTING VEHICLE
Document Type and Number:
WIPO Patent Application WO/2022/121299
Kind Code:
A1
Abstract:
A three-stage tilting air cylinder and a tilting vehicle. The three-stage tilting air cylinder comprises: an air cylinder outer sleeve (1); an outer piston (3) inserted into the air cylinder outer sleeve (1), wherein the upper portion of the outer piston (3) is provided with a first inner step, and the lower portion of the outer piston (3) is provided with a first outer step; a middle piston (4) inserted into the outer piston (3), wherein a sealing cover is provided at the upper end of the middle piston (4), a first through hole is formed in the middle portion of the sealing cover, a first filler groove is formed in the inner wall of the first through hole, and a second outer step is provided at the lower portion of the middle piston (4); an inner piston (5) slidably provided in the middle piston (4); a piston rod (6), wherein the lower end of the piston rod is connected to the inner piston (5), the upper end of the piston rod passes through the first through hole, the head portion of the piston rod (6) is rotatably connected to the bucket of a tilting vehicle, and a first pin hole is formed in the upper end of the piston rod (6); and a first convex disc (8), wherein the first convex disc is annular and provided at the upper portion of the air cylinder outer sleeve (1).
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Inventors:
HUANG GANGQIANG (CN)
ZHAO MING (CN)
GUO DANDAN (CN)
LIU WENSHENG (CN)
YANG JINGLIN (CN)
ZHAO MING (CN)
GUO DANDAN (CN)
LIU WENSHENG (CN)
YANG JINGLIN (CN)
Application Number:
PCT/CN2021/104983
Publication Date:
June 16, 2022
Filing Date:
July 07, 2021
Export Citation:
Assignee:
CRRC TAIYUAN CO LTD (CN)
International Classes:
B61D9/00; B60P1/16; F15B15/14; F16B39/00
Foreign References:
| CN112477725A | 2021-03-12 | |||
| CN202118027U | 2012-01-18 | |||
| CN209875693U | 2019-12-31 | |||
| GB191300925A | 1913-11-13 | |||
| US1717485A | 1929-06-18 | |||
| CN202140366U | 2012-02-08 | |||
| CN202673819U | 2013-01-16 | |||
| CN101979882A | 2011-02-23 | |||
| CN200971888Y | 2007-11-07 | |||
| CN211116904U | 2020-07-28 |
Other References:
LI JUN-SHENG: "Research on Design of KF60-type Roll-over Air Cylinder", MECHANICAL MANAGEMENT AND DEVELOPMENT, no. 6, 15 December 2011 (2011-12-15), pages 79 - 80,82, XP055941842, DOI: 10.16525/j.cnki.cn14-1134/th.2011.06.094
Attorney, Agent or Firm:
BEIJING SICHUANG DACHENG INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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