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Duct piece lifting tool and using method thereof

A technology for lifting tools and segments, applied in vertical shaft equipment, earth-moving drilling, wellbore lining, etc., can solve the problems of increased construction cost, reduced construction efficiency, unusable segment, etc., to improve connection stability, save costs, The effect of improving work efficiency

Pending Publication Date: 2019-04-30
中建八局轨道交通建设有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] In view of the above situation, the present invention provides a segment hoisting tool and usage method that does not need to be repaired, has a stable structure, is convenient to install, is safe and reliable, and solves the problem that the segment cannot be used after the existing segment hoisting hole is damaged or the damaged hoisting hole needs to be repaired. Technical problems such as increased construction costs, reduced construction efficiency, and non-standard segment assembly quality due to rework

Method used

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  • Duct piece lifting tool and using method thereof
  • Duct piece lifting tool and using method thereof
  • Duct piece lifting tool and using method thereof

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Embodiment Construction

[0032] In order to facilitate the understanding of the present invention, the following will be described in conjunction with the accompanying drawings and embodiments.

[0033] The present invention provides a segment hoisting tool, the hoisting tool includes a lifting pin 2 for connecting with a button head of a segment assembly machine and a connecting mechanism 3 connecting the lifting pin 2 and the segment 1 . The connecting mechanism 3 includes a main beam 31, a first positioning component 32 and a second positioning component 33, the lifting pin 2 is fixed on the top of the main beam 31; the first positioning component 32 and the second positioning component 33 They are respectively arranged at both ends of the main beam 31, so that the rods of the first bolts 34 are sequentially inserted into the first positioning assembly 32 and the first bolt hole ends on the inner arc surface 13 of the segment 1; Two bolts 35 sequentially penetrate the second positioning assembly 33...

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Abstract

The invention provides a duct piece lifting tool and a using method thereof. The duct piece lifting tool comprises a lifting pin connected with a buckling head of a duct piece splicer, and a connecting mechanism connecting the lifting pin and the duct piece, wherein the connecting mechanism comprises a main beam, a first positioning assembly and a second positioning assembly; the lifting pin is fixed to the top of the main beam; the first positioning assembly and the second positioning assembly are arranged at the tow ends of the main beam respectively; the rod part of a first bolt sequentially runs through the first positioning assembly and the first bolt hole end on the inner arc surface of the duct piece; a second bolt sequentially runs through the second positioning assembly and the second bolt hole end on the inner arc surface of the duct piece, runs out of the second bolt hole end on the side surface of the duct piece and then is screwed and tightly fixed to a nut so as to connect duct piece with the second positioning assembly. After a lifting hole is damaged, fixing of the duct piece and the lifting pin and splicing of the duct piece can be achieved without the need of perforating the duct piece additionally and requiring the duct piece, so that the working efficiency is improved, and the cost is reduced.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a segment hoisting tool and a usage method thereof. Background technique [0002] With the rapid development of urban subway construction, the shield tunneling method has been widely used and promoted due to its technical advantages such as fast speed, high quality, low interference, safety and environmental protection, and the lining ring segment, as the main component of the formed tunnel, has been widely used and promoted. The shield method plays an important role in the construction. The transportation and assembly of the segment is realized by screwing into the hoisting hole, so the threaded pipe embedded part in the hoisting hole that bears the self-weight and dynamic load when the segment is hoisted or assembled is an important force-bearing member. Not only high structural strength is required, but also sufficient grip with concrete is required. [0003] s...

Claims

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Application Information

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IPC IPC(8): E21D11/08E21D11/40
CPCE21D11/08E21D11/40
Inventor 黄小朋王刚相开将汤效钱翰飞郑潮潮王威
Owner 中建八局轨道交通建设有限公司