Title:
QUADRILATERAL CONNECTING ROD STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2021/057414
Kind Code:
A1
Abstract:
A quadrilateral connecting rod structure, comprising a first connecting rod (1), an upper connecting rod (4), a second connecting rod (9), and a lower connecting rod which are successively movably connected end-to-end to form a quadrilateral. The upper connecting rod (4) and the lower connecting rod are provided in parallel, and the first connecting rod (1) and the second connecting rod (9) are symmetrically distributed about a middle perpendicular of the upper connecting rod (4). The lower connecting rod comprises a first horizontal push cylinder (19) and a second horizontal push cylinder (11) which are connected, and the first horizontal push cylinder (19) and the second horizontal push cylinder (11) are symmetrically distributed about the middle perpendicular of the upper connecting rod (4). The horizontal push cylinder is movably connected to the corresponding connecting rod. The first horizontal push cylinder (19) and the second horizontal push cylinder (11) are double piston rod pressure cylinders, and diameters of two piston rods of each horizontal push cylinder are the same; the piston rod of the first horizontal push cylinder (19) and the piston rod of the second horizontal push cylinder (11) opposite to that of the first horizontal push cylinder can be abutted or separated. In view of this, it can be ensured that the displacements of the piston rods of two horizontal push cylinders are always the same whether to stretch out or retract. The horizontal push cylinders are pushed to retract or stretch out by means of a pressure system, and the first connecting rod (1) and the second connecting rod (9) can be driven to open or close steplessly synchronously at the same angle.
More Like This:
| JP4223261 | Drive control device based on pressure distribution pattern |
| JP2020185816 | STEERING UNIT |
| JP7184061 | Steering power assist structure and vehicle |
Inventors:
YANG XIANG (CN)
HE QINGHUA (CN)
ZHU JIANXIN (CN)
ZENG SU (CN)
HE QINGHUA (CN)
ZHU JIANXIN (CN)
ZENG SU (CN)
Application Number:
PCT/CN2020/112940
Publication Date:
April 01, 2021
Filing Date:
September 02, 2020
Export Citation:
Assignee:
SUNWARD INTELLIGENT EQUIPMENT (CN)
International Classes:
B62D5/20; F15B13/02
Foreign References:
| CN106080763A | 2016-11-09 | |||
| CN106891993A | 2017-06-27 | |||
| CN206691191U | 2017-12-01 | |||
| CN203047347U | 2013-07-10 | |||
| KR20140055005A | 2014-05-09 | |||
| KR101029244B1 | 2011-04-19 |
Attorney, Agent or Firm:
CHANGSHA ZONEKEY PATENT LAW FIRM (CN)
Download PDF: