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Pipeline surface pit repair tool

A technology for pits and pipes, applied in the field of pit repair tools on the surface of pipes, can solve the problems of metal pipes that cannot be repaired, require fire, and unfavorable pit repairs, etc., and achieve broad promotion prospects and practical use significance, easy to carry and operate convenient effect

Inactive Publication Date: 2015-07-08
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is generally suitable for the repair of large diameter metal pipes and the pits can be touched by hand. Smaller metal pipes cannot be repaired, and it has the disadvantages of burning fire, which is not conducive to pit repair.

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0029] A tool for repairing pits on the surface of pipes, comprising a tapered screw and an annular tapping head;

[0030] The ring-shaped tapping head is a cylindrical body with a cylindrical outer surface. A tapered threaded hole is arranged along the axis of the cylindrical body at the center of the inner cavity of the cylindrical body. The cylindrical cylindrical body is composed of several pieces. It is formed by embracing each other, and the columnar body is divided into several pieces along the axis direction, and the several pieces of columnar bodies are bound by elastic bodies;

[0031] The tapered screw rod is matched with the threaded hole in the inner cavity of the ring tapping head.

[0032] The tapered lead screw 1 is a conical external thread, which adopts a special 60° metric tapered thread with a taper of 1:16. It is made of high-quality steel and has excellent wear resistance after special heat treatment. The large end of the tapered screw 1 is provided with...

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PUM

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Abstract

The invention discloses a pipeline surface pit repair tool. The pipeline surface pit repair tool comprises a tapered lead screw and an annular tapping head; the annular tapping head is a section of cylinder with a cylindrical outer surface; a tapered threaded hole is formed in the center of the inner cavity of the cylinder in the axis of the cylinder; the cylinder is formed by a plurality of pieces opposite hooped together; the cylinder is divided into a plurality of pieces in the direction of the axis; the plurality of pieces of the cylinder are peripherally bundled up by use of an elastomer; the tapered lead screw is matched with the threaded hole of the inner cavity of the annular tapping head. The pipeline surface pit repair tool is portable, environment-friendly, easy to carry and convenient to operate. The tool is capable of repairing the pit parts of a stainless steel pipe, an aluminum pipe and a copper pipe in short time; the problems of need on oxy-acetylene flame for heating the metal pipelines, time and labor waste, difficult repair and the like are solved; in short, the pipeline surface pit repair tool has wide popularization and prospect and practical use significance.

Description

technical field [0001] The invention relates to a repair tool, in particular to a repair tool for pits on the surface of pipes. Background technique [0002] Due to improper transportation or storage, it is easy to cause pipe stacking deformation, dents, and economic losses; the full circle repair of aluminum pipes is the most common repair content in the industry, and the repair of pits is generally done by manual knocking. Use an oxyacetylene flame to heat and anneal the pit. After cooling, use a flat round hammer to extend into the tube and try to knock on the recessed part. Observe the knocking point from the outside. After adjusting and confirming the knocking point, the Hit harder until the pit is eliminated. If it is difficult to strike in the middle, it seems that the metal is hardened by hammering, and it must be heated and annealed again, and then continue after cooling. This method is generally suitable for the repair of large diameter metal pipes...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D3/00
CPCB21D3/00
Inventor 吴建波陈永华黄长协林睿成林昌熔张智敏邹邃歌薛智伟赖龙龙尤裕敬赖仕达郭承辉叶俊卿姚彬柯志伟
Owner STATE GRID CORP OF CHINA
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