Patent · US Active

Process method for withdrawing and recovering mechanical constant-resistance single prop

US10352167B2 · kind B2 · utility

0Cited by

4References

5Claims

0Family size

Assignee

China University of Mining and Technology · CN

Inventors

Jixiong Zhang · 安丰镇, CN
Nan Zhou · Beijing, CN
Wenyue Qi · 安丰镇, CN
Qiang Zhang · Dalian, CN
Meng Li · 安丰镇, CN

Key dates

Filing date	Dec 1, 2016
Grant date	Jul 16, 2019
Priority date	—
Expiry date	Dec 1, 2036

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21D15/20
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

The present invention discloses a process method for withdrawing and recovering a mechanical constant-resistance single prop, specific steps involving: detecting a working resistance and a degree of deformation of a mechanical constant-resistance single prop, releasing lug clamp bolts of a recoverable base, knocking a lower portion of a cylinder body of the mechanical constant-resistance single prop to disengage the mechanical constant-resistance single prop from the recoverable base, and dismantling the mechanical constant-resistance single prop. Parts are classified and recovered based on degree of deformation thereof. By means of the foregoing method, a process of withdrawing and recovering a mechanical constant-resistance single prop is standardized, simple and fast disengagement of the mechanical constant-resistance single prop is achieved, and parts that can still be used can be sufficiently recovered and reused, thereby achieving the objectives of saving energy and reducing costs.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.