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A reusable sealed connection structure

A connection structure and sealing groove technology, applied in the direction of sealing surface connection, non-detachable pipe connection, pipe/pipe joint/pipe fitting, etc., to achieve the effect of low leakage rate, reduced sealing leakage rate, and convenient disassembly

Active Publication Date: 2018-11-23
BEIJING INST OF ASTRONAUTICAL SYST ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Obviously, the structural types such as the ball joint pipeline sealing structure widely used in various aircrafts in our country are difficult to meet the above requirements

Method used

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  • A reusable sealed connection structure
  • A reusable sealed connection structure
  • A reusable sealed connection structure

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Embodiment Construction

[0021] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0022] figure 1 A schematic structural view of the reusable sealing connection structure provided by the embodiment of the present invention is shown. like figure 1 As shown, the connection structure includes a concave stepped joint 1 , a metal dish ring 2 , a rubber O-ring 3 , an outer casing nut 4 and a convex stepped joint 5 . in,

[0023] The concave stepped joint 1 is hollow, and one end is used for connecting with pipelines. During specific implementation, one end of the concave step joint 1 ( figure 1 (middle is the left end) is welded with the pipeline, and the hollow structure of the concave stepped joint 1 can transport propellant together with the pipeline.

[0024] The convex stepped joint 5 is hollow, and one end is used to connect with another pipeline. During specific implementation, one end of the convex step joint 5 ( figure 1 (middle is the ri...

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Abstract

The invention discloses a reusable sealing connection structure which comprises a concave step joint, a dish-shaped metal ring, an O-shaped rubber ring, a sleeve nut and a convex step joint, wherein the concave step joint is hollow; one end of the concave step joint is used for being connected with a pipeline; the convex step joint is hollow; one end of the convex step joint is used for being connected with another pipeline; the other end of the convex step joint and the other end of the concave step joint are matched with each other; a first sealing groove and a second sealing groove are formed in the matching junction of the convex step joint and the concave step joint; the dish-shaped metal ring is arranged in the first sealing groove; the O-shaped rubber ring is arranged in the second sealing groove; and the sleeve nut sleeves the convex step joint and is in threaded connection with the concave step joint. The reusable sealing connection structure provided by the invention improves the sealing property, and is convenient to dismount and mount to facilitate reuse.

Description

technical field [0001] The invention relates to the field of connection and sealing of the carrier pipeline system, in particular to a reusable sealing connection structure. Background technique [0002] With the development of my country's aerospace technology, the requirement for repeated use of the vehicle is put forward, which poses a great challenge to the sealing technology of the pipeline and other systems that transport the propellant. The technical difficulties of the sealing part mainly include the sealing leakage rate requirement Alternating high, normal and low temperature temperatures, small installation torque, allowing multiple disassembly and replacement of seals and good compatibility with media, etc. Obviously, the structural types such as the ball joint pipeline sealing structure widely used in various aircrafts in our country are difficult to meet the above requirements. Contents of the invention [0003] The technical problem solved by the present inve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L19/03F16L13/10
CPCF16L13/103F16L19/0218
Inventor 王恺满满廖传军周浩洋张翼王洪锐邱波林杨许光
Owner BEIJING INST OF ASTRONAUTICAL SYST ENG
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