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A dynamic expansion oil pipe joint for low oil pressure

A technology for oil pipe joints and low oil pressure, which is applied in the direction of pipes/pipe joints/fittings, expansion compensation devices for pipelines, pipe components, etc., and can solve problems such as relatively high requirements, complex structures, and limited pressure bearing capacity of sealing mechanisms , to achieve the effect of improving pressure sensitivity, improving durability, convenient connection and stability

Inactive Publication Date: 2017-02-08
YANCHENG XIONGYING PRECISION MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is: to overcome the technical problem of limited pressure bearing capacity and complex structure of the sealing mechanism in the prior art, and at the same time, some existing dynamic expansion joints have relatively high requirements for oil pressure, which are not suitable for high sensitivity requirements working environment, provide a fuel pipe joint that can automatically adjust the sealing degree according to the pressure of the fuel pipe

Method used

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  • A dynamic expansion oil pipe joint for low oil pressure
  • A dynamic expansion oil pipe joint for low oil pressure
  • A dynamic expansion oil pipe joint for low oil pressure

Examples

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Embodiment 1

[0042] Such as Figure 1~6 As shown, this product is a self-expanding oil pipe joint, the body is a cylindrical joint body, and at one end of the joint body is a dynamic expansion oil pipe joint for low oil pressure, including a connecting part, a driving part, and a sealing part;

[0043] The connecting part includes a joint body, an equipment connector 1 is arranged at one end of the joint body, and an oil pipe connector is arranged at the other end of the joint body, and the oil pipe connector includes a fixed surface for contacting the inner wall of the oil pipe;

[0044]The driving part includes a driving block 7 and a push ring 10 arranged on the inner wall of the oil pipe connection head. The driving block 7 is hollow cylindrical, and a plurality of protruding keys 8 are arranged in an annular array on the outer wall of the driving block 7. The protruding The axis of the key 8 is parallel to the axis of the drive block 7, and a push key 9 is also arranged on the top of ...

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Abstract

The invention relates to a dynamic expansion oil pipe joint for low oil pressure. The dynamic expansion oil pipe joint mainly comprises an oil pipe joint body, and a driving block arranged in the oil pipe joint body, wherein multiple pressure bearing pieces are arranged in the driving block, and are communicated with a relatively slipping inclined surface mechanism; multiple pushing keys projected on the wall surface of the oil pipe joint body are arranged on the outer wall of the driving block; the surfaces of the pushing keys are inclined surfaces; when oil pressure is increased, the pushing keys are displaced, and drive a rubber ring coating the outer wall of the oil pipe joint body to expand so as to increase the binding force between the oil pipe joint and the oil pipe wall surface; and the pressure bearing pieces solve the problem that pushing blocks can be driven through higher oil pressure due to weak pressure bearing and movement sensitivity.

Description

technical field [0001] The invention relates to a dynamic expansion oil pipe joint for low oil pressure, which belongs to the field of oil supply pipe joints for oil pressure equipment. Background technique [0002] With the rapid development of industry and more and more large-scale equipment, hydraulic pressure is widely used in many driving or load-bearing fields; [0003] First of all, in the field of construction, in order to reduce the impact of the construction site on the local environment (such as the dust brought by cement powder), it is generally used to make prefabricated parts outside the construction site, and then move them to the construction site for assembly by large machinery. ; [0004] Furthermore, in the mining industry, the demand for coal mines and stone materials is also increasing. Traditional small-scale excavation machinery can no longer meet the current demand. If the local production and construction of related equipment can save costs, it will...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L51/00
CPCF16L51/00
Inventor 郭丰郭乃宏
Owner YANCHENG XIONGYING PRECISION MACHINERY
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