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A plug-in pipe fitting

A plug-in, plug-in technology, used in mechanical equipment, couplings, etc., can solve problems such as poor safety and reliability

Active Publication Date: 2016-08-17
广州市思泊隆供水设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the patent of the invention is to provide a plug-in pipe fitting suitable for connecting pipes of various wall thicknesses, which is very convenient to install, and has the function of anti-pull self-locking, so as to solve the problem of poor safety and reliability of the current clamping pipe fittings

Method used

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  • A plug-in pipe fitting

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Embodiment Construction

[0008] Put a large number of steel balls 2 against the conical slope 4, and put them together with the O-ring 3 in the annular groove 6 of the insert 1, and then insert the insert 1 into the connecting pipe 5, And make the diameter radial compression ratio of the O-shaped rubber ring 3 greater than 15%, so that the pipe fittings have a tight seal. At this time, the wire diameter of the O-ring rubber ring 3 placed in the annular groove 6 becomes larger due to the decrease in the radial dimension, so that the steel ball 2 on the side becomes larger when the O-ring rubber ring 3 is deformed. Under pressure, it is pressed into the wedge-shaped slope formed by the conical slope 4 of the insert 1 and the surface of the inner hole of the connecting pipe 5, and is clamped by the wedge-shaped slope, so that the connecting pipe 5 and the insert 1 obtain an interference-fit mutual tight fit Force, the radial pressure between them produces axial friction force, prevents the pull-off of th...

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Abstract

The invention relates to a plug-in type pipe fitting which realizes connecting sealing by the rebounding force of an O-shaped rubber ring when the O-shaped rubber ring is pressed and obtains the anti-drawing self-locking force by a steel ball on a wedge-shaped inclined surface of a connecting pipe and the pipe fitting, and the anti-drawing force of the pipe fitting reaches the tensile strength of welding and flange connection. When the pipe fitting is installed, only the connected pipe needs to be inserted in the axial direction to complete connection, the dedicated construction tool is not needed, and the plug-in type pipe fitting has the advantages that the installation is simple and fast, the connection is firm and the application cost is low.

Description

technical field [0001] The patent of the present invention relates to a connected pipe fitting, which is especially suitable for use in pressure pipelines. Background technique [0002] Pipeline is the transportation mode with the highest efficiency in medium transportation. Pipelines must be installed before they can be connected into pipelines. The convenience and reliability of the fittings used to connect pipes are the main elements of pipeline connection quality. [0003] At present, the compression-type fittings used in the connection of thin-walled metal pipes are to insert the pipe into the inner hole of the pipe fittings with rubber rings, and then press the outer circle of the pipe fittings with a special pressing tool, so that the pipes and fittings are locked together. Hold to prevent the tube from pulling out of the fitting. However, when the pipe is subjected to high pressure or the pulling force or external force generated by the thermal expansion and contrac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L37/23
Inventor 邝月好
Owner 广州市思泊隆供水设备有限公司