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Large displacement corrugated pipe

A corrugated pipe and large displacement technology, applied in the direction of hoses, pipes, pipes/pipe joints/pipe fittings, etc., can solve the problems of easy leakage, complicated manufacturing process, and many materials, so that it is not easy to leak, the manufacturing process is simple, and the process simple effect

Inactive Publication Date: 2008-01-30
沈阳东韩波纹管有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Compared with the formed bellows, the advantage of welded bellows is that the amount of compression (that is, the displacement) is large, up to 70%.

Method used

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  • Large displacement corrugated pipe

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Embodiment Construction

[0017] The present invention includes a corrugated pipe 1. The corrugated pipe 1 is provided with an annular surface 2 with the same shape and along the same direction. The top and bottom ends of the annular surface 2 are connected by rounded corners 3 and 5.

[0018] The torus 2 may be arcuate 4 or sinusoidal 6 or triangular 7 .

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Abstract

A large displacement corrugated pipe relates to a modified corrugated pipe structure. The invention provides a large displacement corrugated pipe with the advantages of a shaping corrugated pipe and a welding corrugated pipe. The invention comprises a corrugated pipe, the structure key points of which is that: the outside of the corrugated pipe is provided with a circular surface with the same shape and arranged in the same direction, and the top end and the bottom end of the circular are all connected by a round angle.

Description

Technical field: [0001] The present invention relates to the improvement of bellows structure. Background technique: [0002] At present, bellows are roughly divided into two types: one is formed bellows, and the other is welded bellows. Production of formed bellows: (1) The outside of the bellows is a corrugated mold, and then liquid pressure is formed inside the bellows; (2) Three rollers are set on the inside and outside of the bellows, and the three rollers are rolled and formed at the same time ; (3) A mechanical expansion mold is arranged in the bellows, and the expansion mold expands and presses outward wave by wave to form. The shape of the outer ring has three types: U-shape, V-shape, and Ω-shape. Another production of welded bellows: First, use a composite die to punch a plurality of arc-shaped, triangular, sinusoidal, etc. ring pieces on the metal plate, and then weld multiple ring pieces inside and outside in the same direction into an integrated bellows. [0...

Claims

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Application Information

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IPC IPC(8): F16L11/15
Inventor 崔民秀
Owner 沈阳东韩波纹管有限公司
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