Adjustable space special-shaped pipe tightening fixing device

The adjustable spatial irregular tube tightening and fixing device solves the problem of positional displacement between the engine high-pressure oil pump and the fuel rail connecting pipe during tightening, achieving a stable clamping and sealing effect, and ensuring the normal operation and safety of the engine.

CN224488957UActive Publication Date: 2026-07-14蔡俊
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
蔡俊
Filing Date
2025-08-25
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

In high-pressure systems, especially in the irregularly shaped pipes connecting the engine's high-pressure oil pump and the fuel rail, the pipes are prone to displacement during tightening, leading to incomplete sealing, which affects the normal operation of the engine and poses safety hazards.

Method used

An adjustable spatial irregular tube tightening and fixing device is adopted, including a housing, a quick positioning mechanism, a quick locking mechanism, a bottom steel pad, and an adjustable fuel pipe limiting support mechanism. Through the limiting sleeve and support structure, the pipe does not shift position during the tightening process, achieving a stable clamping and sealing effect.

Benefits of technology

It effectively prevents pipelines from flipping due to stress, ensures the stability of the sealing effect, reduces the risk of fuel leakage, and guarantees the normal operation and safety of the engine.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224488957U_ABST
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Abstract

The utility model discloses a kind of adjustable space special-shaped pipe tightening fixing devices, including high-pressure oil pump, the outer surface of high-pressure oil pump is limited and is connected with shell, the two side outer walls of the shell are respectively provided with first assembly groove and second assembly groove, quick positioning mechanism is rotatably connected in the first assembly groove, quick locking mechanism is rotatably connected in the second assembly groove.The utility model in the present application, high-pressure oil pump is limited and is connected by shell, and the accurate positioning and firm clamping of high-pressure oil pump are realized using quick positioning mechanism and quick locking mechanism, while cooperating with bottom steel pad and fuel pipe position support adjustable mechanism to form effective support to oil pipe, reliable offset tightening overturning force can be formed when tightening operation, avoid pipeline overturning due to stress, ensure that pipeline is always in correct position, effectively solve the tightening unqualified problem caused by pipeline position offset, guarantee the stability of sealing effect.
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