Telescopic flange-free connecting air pipe

A technology without flanges and air ducts, which is applied in the direction of adjustable connections, pipes/pipe joints/fittings, passing components, etc., which can solve problems such as difficulties in manufacturing and installation, high requirements for pipe precision, and unadjustable distances, etc., to shorten construction time, workers are convenient to operate, and the effect of improving work efficiency

Inactive Publication Date: 2016-06-08
WUHAN TIEDUN CIVIL DEFENCE ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002]Now the pipes are connected by using a roulette, and the connection

Method used

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  • Telescopic flange-free connecting air pipe

Examples

Experimental program
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Effect test

Embodiment Construction

[0008] according to figure 1 As shown, a kind of adjustable air duct without flange connection includes an outer connecting pipe 4 welded at one end of the first air duct 2, an inner connecting pipe 3 welded at one end of the second air duct 1, and an outer diameter of the inner connecting pipe 3 is provided. A circular groove is arranged, and the rubber sealing ring 5 is housed on the circular groove.

[0009] The sealing adjustment of the two pipes is realized in this way, the inner connecting pipe 3 of the second air pipe 1 is put into the outer connecting pipe of the first air pipe 2, and then the rubber sealing ring 5 seals the inner diameter of the outer connecting pipe 4 and the inner connecting pipe 3 the outer diameter.

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PUM

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Abstract

The invention discloses a telescopic flange-free connecting air pipe. The telescopic flange-free connecting air pipe comprises a first air pipe with one end welded with an external connecting pipe, and a second air pipe with one end welded with an internal connecting pipe, wherein a circular groove is formed in the external diameter of the internal connecting pipe; a rubber sealing ring is mounted on the circular groove. The telescopic flange-free connecting air pipe has the advantages that the telescopic flange-free connecting air pipe is adjustable in length, convenient to mount and manufacture, low in requirement on precision, and convenient for workers to operate, shortens the construction time and improves the work efficiency.

Description

technical field [0001] The invention relates to the technical field of pipe connection, in particular to an air pipe that can be raised and retracted without a flange. Background technique [0002] Now the pipes are all connected by using a roulette. After the connection, they cannot be loosened and the distance cannot be adjusted. This requires high precision for the length of the pipes, which brings great difficulties to manufacture and installation. Contents of the invention [0003] The purpose of the present invention is to design a kind of air duct whose length can be adjusted, which is convenient for installation and does not require too high manufacturing precision. [0004] The present invention can lift and shrink the flange-less connection air duct, which includes an outer connecting pipe welded at one end of the first air duct, an inner connecting pipe welded at one end of the second air duct, a circular groove is arranged on the outer diameter of the inner con...

Claims

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Application Information

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IPC IPC(8): F16L27/12
CPCF16L27/12
Inventor 魏星
Owner WUHAN TIEDUN CIVIL DEFENCE ENG
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