A universal expansion joint

Abstract

The invention discloses a universal telescopic joint, comprising: a ball joint connecting pipe and a concave ball seat, the ball joint connecting pipe and the concave ball seat are rotatably and orbitally connected; the concave ball seat is far away from the ball joint pipe One end of the telescopic tube is telescopically sleeved with a telescopic tube, and the telescopic tube and the concave ball seat can be telescopically moved. The outside flows through the through hole of the telescopic tube, the through hole of the concave ball seat, and the through hole of the ball head connecting pipe in turn, and then flows out to the outside; jitter and deformation make the concave ball seat and the telescopic tube telescopic movement and release energy, which solves the problem of pipeline The problem of leakage caused by cracks and cracks in the weak parts of the system; the connection between the ball joint and the concave ball seat can be rotated and orbited, so that the rigidly connected pipe becomes flexible, and the rotation and orbit can generate a certain amount of clearance. space, which solves the time-consuming and labor-intensive problem of replacing the seals between the pipes or replacing the components of the pipes.

Description

technical field [0001] The invention relates to a universal expansion joint, which belongs to the technical field of mechanical joints. Background technique [0002] First, in all rigidly connected pipeline systems, since the materials used in the pipeline system are rigid materials, the rigidly connected pipeline system will be deformed when the pipeline expands and contracts; when the pressure changes in the pipeline system, it will Vibrate the rigidly connected pipeline system, and the pipeline is rigidly connected, so it will restrict the vibration and deformation of the pipeline system due to vibration. In order to release energy, cracks will occur in the weakest part of the pipeline system, such as welding. Cracks will occur in places where leakage occurs; [0003] Second, because there is no gap between the rigidly connected pipes, to replace the seals between the pipes or replace the components of the pipes, a certain space must be made, which is impossible for larg...

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Problems solved by technology

[0002] First, in all rigidly connected piping systems, since the materials used in the piping system are all rigid materials, the rigidly connected piping system will be deformed when the pipe expands with heat and contracts with cold; when there is a pressure change in the piping system, it will Make the rigidly connected pipeline system vibrate, and the pipeline is rigidly connected, so it will restrict the vibration and deformation of the pipeline system due to vibration. In order to release energy, the weakest place in the pipeline system will produce cracks, such as welding There will be cracks and leaks in places;

[0003] Second, since there is no gap between the rigidly connected pipes, a certain amount of space must be given up to replace the seals between the pipes or replace the parts of the pipes, which is impossible for large pipe systems and particularly rigid pipe systems. The operation is performed through deformation to allow gaps, which makes it impossible to replace; or the pipeline system can only be cut into multiple sections, and after the seals or pipeline components are replaced, the pipeline system is connected, which is time-consuming and labor-intensive and inconvenient for parts. Disassembly and replacement

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