Connection structure for automotive power steering oil return pipe

A technology of automobile power steering and connection structure, which is applied in the field of auto parts, can solve problems such as insufficient stability of performance, and achieve the effects of enhanced reliability, enhanced sealing performance, and improved sealing performance

Inactive Publication Date: 2010-06-30
邱强
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the performance of this connection structure is not stable enough under high pressure and low temperature.

Method used

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  • Connection structure for automotive power steering oil return pipe
  • Connection structure for automotive power steering oil return pipe
  • Connection structure for automotive power steering oil return pipe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] like figure 1 , figure 2 shown. A connection structure for an automobile power steering oil return pipe, comprising a metal pipe 1, a rubber hose 3 on the outside of the front end of the metal pipe 1, a metal sleeve 2 on the outer casing of the rubber hose 3 near the end of the metal pipe 1, and formed at the end of the metal pipe 1 There is an annular retaining ring 4, two annular protrusions 5, 6 are sequentially formed on the body of the metal pipe 1 close to the end, the rubber hose 3 is set on the corresponding position of the annular protrusions 5, 6 on the metal pipe 1, and the metal sleeve 2 is set on the rubber hose 3, the end of the metal sleeve 2 is provided with a retaining edge that can be pressed against the annular retaining ring 4, and is limited by the annular retaining ring 4. Constrictions 7 and 8 are radially locked on the metal sleeve 2 corresponding to the position between the annular protrusion 5 of the metal pipe 1 and the annular retaining ri...

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PUM

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Abstract

The invention discloses a connection structure for an automotive power steering oil return pipe, which comprises a metal tube. A rubber tube is sleeved outside a front end of the metal tube, and a metal sleeve is sleeved outside the rubber tube close to the end head of the metal tube. An annular retainer ring is molded at the end head of the metal tube. Two annular protrusions are molded on the tube body of the metal tube close to the end head in turn. The rubber tube is sleeved at the position corresponding to the annular protrusions on the metal tube. The metal sleeve is sleeved outside the rubber tube, and the end part of the metal sleeve is provided with a baffle edge which can be propped against the annular retainer ring and limited by the annular retainer ring. Compared with a single protrusion structure, the connection structure is provided with one more annular protrusion, and the front parts of the two annular protrusions corresponding to the metal tube on the metal sleeve are provided with a shrinking part, so the connecting pulling-out force is greatly increased, the connecting reliability is greatly enhanced, the tightness is enhanced, the quality is stable, and the connection structure can adapt to higher pressure and wider temperature range.

Description

technical field [0001] The invention relates to the field of auto parts, in particular to a connection structure for an auto power steering oil return pipe. Background technique [0002] At present, in the domestic automobile industry, a connection structure consisting of a metal steel pipe (single protrusion), a metal sleeve, and a rubber hose is used. An annular retaining ring and an annular protrusion are directly formed on the end of the metal steel pipe. The annular protrusion section A rubber hose is sheathed, and a metal sleeve is arranged on the outside of the rubber hose of the annular raised section. The connection structure is simple in structure and convenient to assemble. However, the performance of this connection structure is not stable enough under high pressure and low temperature conditions. Contents of the invention [0003] The purpose of the present invention is to provide a connection structure for the oil return pipe of automobile power steering, s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L33/00
Inventor 邱强
Owner 邱强
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