High-pressure metal hose with anti-loose connecting structure and using method thereof

Abstract

The invention provides a high-pressure metal hose with an anti-loose connecting structure and a using method thereof. The high-pressure metal hose is used for solving the technical problems that according to an existing high-pressure metal hose, when a welding adapter is connected with a pipeline system through an outer sleeve nut, stability is not achieved, and leakage is likely to happen to the connecting position of a metal corrugated pipe of the high-pressure metal hose and the welding adapter. Firstly, the number of layers of metal net sleeves on the metal corrugated pipe and the welding adapter is adjusted according to the pressure of the using environment, and the pressure resistance of the corrugated part of the metal corrugated pipe is improved; the welding ring is connected to the metal net sleeve in a sleeving mode and fixedly connected with the welding adapter and the metal net sleeve, the welding adapter, the metal corrugated pipe and the metal net sleeve are fixedly connected to form an integrated structure, and the connection stability is further improved; the internal thread of the outer sleeve nut is arranged to be the 30-degree wedge-shaped anti-loosening thread, thread interference locking is generated when the outer sleeve nut is in threaded connection with a pipeline system, the anti-vibration and anti-loosening effects are achieved, medium leakage is prevented, and the system stability is improved.

Description

technical field [0001] The invention relates to the technical field of high-pressure metal hoses, in particular to a high-pressure metal hose with an anti-loose connection structure and a use method thereof. Background technique [0002] Metal hose has the advantages of light weight, small size, high pressure bearing, high and low temperature resistance, fatigue resistance, good flexibility, etc. It can absorb vibration, compensate for installation offset and pipeline displacement, and is widely used in aviation, aerospace engines and other fields. [0003] The existing high-pressure metal hoses have certain defects. First, the welded adapters of the high-pressure metal hoses are generally connected to the system through ordinary threaded outer nuts. After the ordinary threads are engaged, the meshing teeth are unevenly stressed. The force is the largest, followed by the second tooth, and the last tooth is even in a suspended state. The sum of the force on the first two teet...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the technical problems that the welded adapter existing in the existing high-pressure metal hose is unstable when using the jacket nut to connect with the pipeline system, and the joint between the metal bellows of the high-pressure metal hose and the welded adapter is easy to leak, the present invention proposes a A high-pressure metal hose with an anti-loose connection structure and its use method. First, a high-pressure protection mechanism is provided between the metal bellows and the welding adapter to ensure the stability of the fixed connection between the metal bellows and the welding adapter under high pressure; Secondly, the first anti-loose connection mechanism is set on the high-voltage protection mechanism, and the metal bellows, welding adapter and high-voltage protection mechanism are fixed into an integrated structure to further improve the connection stability between the metal bellows and the welding adapter; finally, in The end of the welding adapter is equipped with a second anti-loosening connection mechanism to improve the stability when the end of the welding adapter is connected to the system

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