Tube fittings with leak protection mechanism

Abstract

The invention provides a pipe joint with a leakage protecting mechanism. The pipe joint comprises a first joint component, a second joint component and a locking ring, wherein the first joint component is provided with a first outer end and a second inner end, and the second joint component is provided with a second outer end and a second inner end. A first sealing joint is formed between the first joint component and the second joint component at the matched position. The locking ring surrounds the first joint component and the second joint component. One end of the locking ring is connected to the first joint component, and the other end of the locking ring is connected to the second joint component, so that at the matched position, the locking ring, the first joint component and the second joint component form a sealed cavity on the periphery of the first seal joint. The sealed cavity is arranged to enable radial seal or axial seal to be formed between the locking ring and the first joint component and to be formed between the locking ring and the second joint component. The pipe joint with the leakage protecting mechanism can be prevented from leaking media.

Description

technical field [0001] The invention relates to a pipe joint for pipeline connection in the mechanical industry field, and these fields relate to industries such as airplanes, airplane engines, and automobiles. In particular, the invention relates to a pipe connection with leakage protection. Background technique [0002] In order to ensure the safety and reliability of aircraft and engines, reliability indicators need to be considered in many aspects during the design process of aircraft and engines, and the connection form of fuel / lubricating oil pipelines is an important aspect of assessment, which is critical to the safe operation of aircraft and engines. have an important impact. Generally, the connection of aircraft and engine fuel / lubricating oil pipelines adopts flared, non-flared, extruded, ferruled, and flanged connections according to different medium pressures, temperatures, and vibration environments. These structures The form is relatively simple, and it can ...

AI Technical Summary

Problems solved by technology

However, these connection forms basically use rigid seals or single-layer seals with sealing rings. Once the aircraft or engine is heavily loaded (vibration, medium pressure), leakage may occur, which will cause engine or aircraft fire and affect the aircraft. Attendance or safety of personnel

At the same time, if there are errors in the processing of the pipeline, it will lead to deviations in the alignment of the connection of the pipeline joints, resulting in forced assembly of the pipeline. In the case of vibration and increased medium pressure, it is easy to cause pipeline failure. leakage, endangering the safety of the aircraft

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