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Flange hoisting device

A hoisting device and flange technology, applied in the field of hoisting equipment, can solve the problems of limited scope of application, inconvenient preparation of hoisting tools, low construction efficiency, etc., and achieve a simple and reasonable overall structure design, safe and reliable hoisting operation, and ideal use effect. Effect

Inactive Publication Date: 2014-08-06
CHINA NAT OFFSHORE OIL CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The defect of existing operation method is: (1) hoisting tool is inconvenient to prepare, every time flange hoisting needs to prepare hoisting cage and the small-sized sling that can pass through flange bolt hole
(2) The construction efficiency is low. When using the hoisting cage to hoist the flange, the flange loading and unloading procedures are increased, resulting in waste of manpower and time
(3) The scope of application is limited. For some narrow space operations, the flange cannot be sent to the predetermined accurate position by using the hanging cage

Method used

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Examples

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Embodiment Construction

[0015] Such as Figure 1 to Figure 4 As shown, the flange lifting device of the present invention comprises two lifting ear plates 5 and a lifting point orifice 1, the plate surfaces of the two lifting lugs 5 and one lifting point orifice 1 are arranged in parallel to each other and pass through The liaison shaft 3 is assembled together, and the two hoisting lug plates are respectively located under the two sides of the hoisting point orifice plate, and the distance between the hoisting point orifice plate and the two hoisting lug plates is kept the same by passing through the short tube 2 on the liaison shaft The two ends of the connecting shaft 3 are respectively worn on the outer sides of the two hoisting lugs 5, and are fastened with nuts 4 to prevent the hoisting lugs 5 from falling off.

[0016] Such as Figure 1 to Figure 4 As shown, the flange lifting device of the present invention, wherein: the lifting point hole plate 1 is a steel plate, the upper part of the steel...

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Abstract

The invention provides a flange hoisting device, which comprises two hoisting lug plates and a hoisting point pore plate, wherein the plate surfaces of the two hoisting lug plates and the hoisting point pore plate are arranged in parallel and are assembled together through a connecting shaft; the two hoisting lug plates are positioned below two sides of the hoisting point pore plate respectively; the hoisting point pore plate keeps the same distances away from the two hoisting lug plates through a spacing short pipe inserted into the connecting shaft; the two ends of the connecting shaft are inserted into the outer sides of the two hoisting lug plates respectively and are fastened through screw caps to prevent the hoisting lug plates from falling off. The flange hoisting device is simple and reasonable in structure and high in practicability, and flange hoisting operation is safe, convenient and efficient.

Description

technical field [0001] The invention relates to hoisting equipment, in particular to a flange hoisting device suitable for hoisting large flanges and flanges in limited spaces. Background technique [0002] In the construction process of marine engineering, the hoisting of flanges is an indispensable work for every project. The traditional method in the construction process is to rely on the cage or use small slings to pass through the flange holes to complete the work, without a specific A hoisting device designed for the characteristics of flange hoisting. The defective of existing working method is: (1) hoisting tool prepares inconvenience, and every time flange hoisting all needs to prepare hanging cage and the small-sized sling that can pass flange bolt hole. (2) The construction efficiency is low. When using the hoisting cage to hoist the flange, the flange loading and unloading procedures are increased, resulting in waste of manpower and time. (3) The scope of appli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C1/22
Inventor 李淑民田明杰贾秋玄蔺振陈方方魏成革
Owner CHINA NAT OFFSHORE OIL CORP
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