Title:
LIGHT ELECTRIC SUPPORT FOR COAL MINE
Document Type and Number:
WIPO Patent Application WO/2022/022056
Kind Code:
A1
Abstract:
A light electric support for a coal mine, comprising: a pushing device (100), used for driving the light electric support for a coal mine to move; a top beam (200) that can be lifted or lowered with respect to the ground, wherein a plurality of recesses filled with a high polymer material are formed in the top beam (200); and a supporting framework (300) comprising two supporting frames arranged side by side, each supporting frame comprising: a base plate (301); a telescopic driving device (302), one end of the driving device (302) being pivotably connected to the base plate (301), and the other end of the driving device (302) being pivotably connected to the top beam (200); a shield beam (303) pivotably connected to the top beam (200); and a connecting rod (304), one end of the connecting rod (304) being pivotably connected to the shield beam (303) and the other end being pivotably connected to the bottom plate (301).
Inventors:
WANG HONGLEI (CN)
WANG HAIJUN (CN)
ZHAO JIAN (CN)
YANG XIAOHUI (CN)
MENG JIANXIN (CN)
LIU SHAOQUAN (CN)
REN DAOYUAN (CN)
TAO WEIZHONG (CN)
GONG QING (CN)
WANG HAIJUN (CN)
ZHAO JIAN (CN)
YANG XIAOHUI (CN)
MENG JIANXIN (CN)
LIU SHAOQUAN (CN)
REN DAOYUAN (CN)
TAO WEIZHONG (CN)
GONG QING (CN)
Application Number:
PCT/CN2021/097772
Publication Date:
February 03, 2022
Filing Date:
June 01, 2021
Export Citation:
Assignee:
CHINA COAL RES INST (CN)
International Classes:
E21D23/00; E21D23/04; E21D23/06; E21D23/16
Foreign References:
| CN111946378A | 2020-11-17 | |||
| CN102373939A | 2012-03-14 | |||
| CN207161129U | 2018-03-30 | |||
| CN103899350A | 2014-07-02 | |||
| DE10348099B3 | 2004-12-02 |
Attorney, Agent or Firm:
TSINGYIHUA INTELLECTUAL PROPERTY LLC (CN)
Download PDF: