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Expansion joint with bellows

A technology of bellows and expansion joints, which is applied in the field of expansion joints, can solve the problems of easy leakage and short service life of expansion joints, and achieve the effects of long service life, large expansion and contraction, and reliable sealing

Inactive Publication Date: 2011-01-05
倪静丰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the problems of easy leakage and short service life of existing telescopic joints, the present invention provides a telescopic joint with bellows

Method used

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  • Expansion joint with bellows
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Embodiment Construction

[0009] Such as figure 1 As shown, a telescopic joint with bellows includes a left short pipe 1 and a right short pipe 7, a rubber bellows 5 is installed between the left short pipe 1 and the right short pipe 7, and the rubber bellows 5 and the left short pipe 1 It is connected with the right short pipe 7 by a flange, and a spacer 4 is installed on the back of the rubber bellows 5 . A bushing 6 is welded on the right short pipe 7, and an O-ring 3 is used to seal between the left short pipe 1 and the bushing 6, and the end of the bushing 6 is provided with a guide angle 2.

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Abstract

The invention provides an expansion joint with bellows, which comprises a left short tube and a right short tube. A rubber bellows is installed between the left short tube and the right short tube, and the rubber bellows is connected with the left short tube and the right short tube through flanges. The back face of the rubber bellows is provided with a cushion block, a bush is welded on the right short tube, an O-ring seal is installed between the left short tube and the bush, and the end part of the bush is provided with a guide angle. The invention has the advantages of simple structure, large expansion amount, reliable sealing and long service life.

Description

Technical field [0001] The invention relates to an expansion joint, in particular to an expansion joint with bellows. Background technique [0002] At present, the expansion joints used in metallurgy, municipal and other systems generally adopt a sleeve-type structure. The rubber sealing ring is used to seal the expansion sleeve and the cylinder. Due to the aging of the rubber sealing ring, the medium leaks and the service life is short. Contents of the invention [0003] In order to overcome the disadvantages of easy leakage and short service life of existing expansion joints, the invention provides an expansion joint with bellows. [0004] The technical solution adopted by the present invention to solve the technical problem is a telescopic joint with bellows, which includes a short left tube and a short right tube. The short pipe and the right short pipe are connected by flanges, and pads are installed on the back of the rubber bellows. [0005] A bushing is welded on...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L51/00F16L51/02
Inventor 倪静丰
Owner 倪静丰
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