Title:
APPARATUS FOR FABRICATING CONCRETE SHAFT WELLBORE MODEL AND USAGE METHOD
Document Type and Number:
WIPO Patent Application WO/2021/057388
Kind Code:
A1
Abstract:
Disclosed are an apparatus for fabricating a concrete shaft wellbore model and a usage method, which solve the problems in the prior art in which mold dismantling easily leads to model damage and slurry leakage, and an inaccurate centering position, and which has the effects of a simple operation, accurate centering, no slurry leakage and a high success rate of mode dismantling. The technical solution thereof is: an outer cylinder and an inner cylinder that are sleeved together are comprised, a cavity that has an annular cross-section is formed between the outer cylinder and the inner cylinder, two ends of the cavity are respectively connected to special sleeves, and end parts of the outer cylinder and the inner cylinder are closed by means of special sleeves; the outer cylinder is provided with a plurality of installation slits of a fixed length along the axial direction thereof, and buckle structures are provided at the locations of the installation slits; the inner cylinder is composed of multi-segment cylinder bodies that are detachably connected, and adjacent cylinder bodies are internally provided with supporting structures.
Inventors:
ZHANG LIMING (CN)
HE KEQIANG (CN)
SUN LINNA (CN)
CONG YU (CN)
HE KEQIANG (CN)
SUN LINNA (CN)
CONG YU (CN)
Application Number:
PCT/CN2020/112274
Publication Date:
April 01, 2021
Filing Date:
August 28, 2020
Export Citation:
Assignee:
UNIV QINGDAO TECHNOLOGY (CN)
International Classes:
B28B21/82; B28B7/38; B28B21/88
Foreign References:
| CN110653932A | 2020-01-07 | |||
| CN108890872A | 2018-11-27 | |||
| US1810583A | 1931-06-16 | |||
| CN207387975U | 2018-05-22 |
Attorney, Agent or Firm:
JINAN SHENGDA INTELLECTUAL PROPERTY AGENCY CO.,LTD. (CN)
Download PDF: