Title:
HYDRAULIC LIFTING APPARATUS, HYDRAULIC LIFTING SYSTEM HAVING SAME, AND LIFTING CARGO CARRYING PLATFORM
Document Type and Number:
WIPO Patent Application WO/2022/247957
Kind Code:
A1
Abstract:
Disclosed are a hydraulic lifting apparatus, a hydraulic lifting system having same, and a lifting cargo carrying platform. The hydraulic lifting apparatus comprises a double-acting hydraulic cylinder, a lower support base disposed at a lower portion of the double-acting hydraulic cylinder and used to support the double-acting hydraulic cylinder, an upper support base disposed separated from the double-acting hydraulic cylinder, and a cylinder head support base used for fixing the double-acting hydraulic cylinder. The hydraulic lifting system comprises four hydraulic lifting apparatuses as described above and a hydraulic system for providing hydraulic fluid for the double-acting hydraulic cylinders of each hydraulic lifting device. The hydraulic system comprises a vehicle-mounted hydraulic fluid circuit and an external hydraulic station disposed separated therefrom. The vehicle-mounted hydraulic oil circuit comprises a hydraulic locking element, a hydraulic synchronization element and a hydraulic reversing element. The lifting cargo carrying platform comprises a fixed platform, a lifting platform, a platform bracket and the described hydraulic lifting system. In the present invention, a hydraulic lifting apparatus and a hydraulic system separated from each other are used, such that the volume and dead weight of the vehicle-mounted parts are greatly reduced, thereby increasing the transportation and economic benefits.
Inventors:
SHI FENG (CN)
LIU FENGWEI (CN)
SHI CHUNJIANG (CN)
ZANG JUNJIE (CN)
WANG SHOUXIONG (CN)
LIU HAITAO (CN)
HE SHIQIU (CN)
WANG SONG (CN)
LIU FENGWEI (CN)
SHI CHUNJIANG (CN)
ZANG JUNJIE (CN)
WANG SHOUXIONG (CN)
LIU HAITAO (CN)
HE SHIQIU (CN)
WANG SONG (CN)
Application Number:
PCT/CN2022/098353
Publication Date:
December 01, 2022
Filing Date:
June 13, 2022
Export Citation:
Assignee:
CRRC YANGTZE GROUP CO LTD (CN)
International Classes:
B66F7/20; B66F3/25; B66F3/26; B66F3/46; B66F7/28; F15B11/22; F15B13/06
Domestic Patent References:
| WO2006012708A1 | 2006-02-09 |
Foreign References:
| CN113353843A | 2021-09-07 | |||
| CN208516874U | 2019-02-19 | |||
| CN106143955A | 2016-11-23 | |||
| CN105909578A | 2016-08-31 | |||
| CN204002884U | 2014-12-10 | |||
| TW200930866A | 2009-07-16 | |||
| EP0161147A1 | 1985-11-13 |
Attorney, Agent or Firm:
WUHAN KAIYUAN INTELLECTUAL PROPERTY AGENT LTD. (CN)
Download PDF: