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Hinge type expansion joint

An expansion joint and hinge-type technology, applied in the field of expansion joints, can solve problems such as bending deformation and difficult repair of expansion joints

Pending Publication Date: 2020-08-07
营口庆营石化设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the hinge-type corrugated expansion joints in the prior art, long-term use will cause the expansion joint to bend and deform in the axial direction, and after a long time, after the expansion joint is bent and shaped, it will be more difficult to repair

Method used

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  • Hinge type expansion joint
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Examples

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Embodiment Construction

[0020] The preferred embodiments of the present invention are described in detail below, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0021] Refer to the attached figure 1 , figure 2 As shown in the figure, in the hinged expansion joint, the two ends of the middle pipe 1 are provided with bellows 2 and end pipe 3 respectively, and the middle pipe and the end pipe play a supporting role for the bellows. The four quarters in the circumferential direction of the pipe end face of the expansion joint are marked as 0°, 90°, 180°, and 270° respectively. On the left side and right side of the expansion joint, that is, the side parts of the expansion joint corresponding to the end faces 0° and 180°, first hinge brackets 4 are respectively provided. On the front side and rear side of the expansion joint, that is, on the side of the e...

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PUM

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Abstract

The invention relates to a hinge type expansion joint. The two ends of an intermediate pipe are provided with a corrugated pipe and an end pipe respectively, and the left side and the right side of the expansion joint are provided with first hinge frames respectively. The front side and the rear side of the expansion joint are provided with second hinge frames respectively. Upper hinge shafts andlower hinge shafts of the second hinge frames are provided with flat opening torsion springs respectively, and the second hinge frames keep upright in the natural state of the flat opening torsion springs. When the expansion joint has angular deformation, the first hinge frames and the second hinge frames rotate to eliminate angular stress, and after the angular deformation is eliminated, the first hinge frames and the second hinge frames are reset under the straightening effect of the second hinge frames under the support of the flat opening torsion springs, so that the expansion joint is reset.

Description

technical field [0001] The invention belongs to the field of expansion joints, in particular to hinged expansion joints. Background technique [0002] Expansion joints are also customarily called compensators, or expansion joints. It is composed of the corrugated pipe of the working body and accessories such as end pipes, brackets, flanges, and conduits. The expansion joint is a flexible structure arranged on the container shell or pipeline in order to compensate the additional stress caused by temperature difference and mechanical vibration. Utilize the effective expansion and contraction deformation of the bellows of its working body to absorb the dimensional changes of pipelines, conduits, containers, etc. caused by thermal expansion and contraction, or compensate the axial, lateral and angular displacement of pipelines, conduits, containers, etc. It can also be used for noise reduction, vibration reduction, and heating. In order to prevent the deformation or damage of ...

Claims

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Application Information

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IPC IPC(8): F16L51/03
CPCF16L51/025F16L51/03
Inventor 付晓庆李朋李晔
Owner 营口庆营石化设备有限公司
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