Novel self-repairing corrugated pipe

Abstract

The invention discloses a novel self-repairing corrugated pipe and belongs to the field of corrugated pipes. The novel self-repairing corrugated pipe comprises a corrugated pipe body, wherein a protruding ring is arranged on the outer surface of the corrugated pipe body, a first connecting end socket is fixedly mounted at the left end of the corrugated pipe body, a second connecting end socket isfixedly mounted at the right end of the corrugated pipe body, and the corrugated pipe body comprises an outer layer. According to the corrugated pipe, automatic repair of the corrugated pipe can be realized in three layers, that is, an inner layer is bonded and repaired by heating and melting as well as thermoplastic resin cooling, a middle layer achieves a self-bonding function by releasing gluein a water-soluble film, and the outer layer is repaired through an overflow glue coating; and local pressed damage to the corrugated pipe is avoided through thermal expansion of an expansion material.

Description

technical field [0001] The invention relates to the field of corrugated pipes, and more specifically relates to a novel self-repairing corrugated pipe. Background technique [0002] Bellows refers to a tubular elastic sensitive element connected by foldable corrugated sheets along the direction of folding and stretching. Bellows are widely used in instruments and meters, and their main purpose is as a measuring element of a pressure measuring instrument to convert pressure into displacement or force. The bellows has a thinner wall and higher sensitivity, and the measurement range is tens of Pa to tens of MPa. Its open end is fixed, and the sealed end is in a free state, and the auxiliary coil spring or reed is used to increase the elasticity. When working, under the action of internal pressure, it is elongated along the length of the pipe, so that the movable end produces a displacement that has a certain relationship with the pressure. The movable end drives the pointer ...

AI Technical Summary

Problems solved by technology

[0003] During the use of the bellows, due to the particularity of the material of the pipe fittings, it is prone to rupture, and the ruptured bellows have different repair methods due to the different degrees of rupture, and the local longitudinal compression will produce depressions. , and these depressions are difficult to automatically reset, and need to be squeezed back and forth by hand. Such external force extrusion is extremely prone to breakage;

[0004] However, the existing corrugated pipes do not have a good repair function. After the pipe fittings are broken, they can be sealed and waterproof through the external winding tape, and the service life of the corrugated pipes treated in this way is greatly reduced, and it is extremely easy to cause secondary rupture

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