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Patent Searching and Data


Title:
METHODS FOR MOUNTING AND ERECTING MECHANICAL CONSTANT-RESISTANCE SINGLE PROP
Document Type and Number:
WIPO Patent Application WO/2018/086509
Kind Code:
A1
Abstract:
A method for mounting a mechanical constant-resistance single prop, comprising: (1) fitting a rod body (5) within a cylinder body (3) and adjusting the fitting length according to an actual section height of a cut hole or a roadway in a mine; (2) nesting a steel ball sleeve (6) between the rod body (5) and the cylinder body (3), so that the rod body (5) presses the steel ball sleeve (6) to form self-locking; (3) fixedly connecting a limiting cover to the fitting portion of the rod body (5) and the cylinder body (3); (4) mounting and locking a top tray (4) to the upper end of the rod body (5); and (5) vertically erecting the parts of a mechanical constant-resistance single prop that are assembled in the step (4) and mounting the parts on a base. The present invention implements easy, quick and efficient mounting, and saves labor and material resources.

Inventors:
MIAO XIEXING (CN)
CHEN YANLONG (CN)
ZHANG JIXIONG (CN)
ZHANG QIANG (CN)
WU YU (CN)
DENG XUEJIE (CN)
Application Number:
PCT/CN2017/109693
Publication Date:
May 17, 2018
Filing Date:
November 07, 2017
Export Citation:
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Assignee:
UNIV CHINA MINING (CN)
International Classes:
E21D15/582; E21D15/00
Foreign References:
CN106499420A2017-03-15
CN106499421A2017-03-15
CN106285737A2017-01-04
CN104879145A2015-09-02
CN105179402A2015-12-23
US4431348A1984-02-14
Attorney, Agent or Firm:
NANJING JINGWEI PATENT & TRADEMARK AGENCY CO., LTD (CN)
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