Method and device for penetrating air bag into pipeline

Abstract

The invention relates to the technical field of construction engineering, and particularly relates to a method and a device for penetrating an air bag into a pipeline. The method for penetrating the air bag into the pipeline comprises the following steps that a shell with an outlet pipe section and an air inlet is provided; the uninflated air bag is arranged in the shell, one end of the uninflated air bag is a closed end, the other end of the uninflated air bag is an open end, and the open end stretches out of the outlet pipe section; the open end is turned outwards to form a turning section, and the turning section is fixedly arranged outside the outlet pipe section in a sleeving manner; the outlet pipe section is aligned with the pipeline, an inner cavity of the shell is inflated through the air inlet, inflated air enters the position between the outer surface of the uninflated air bag and the inner surface of the outlet pipe section, and therefore the uninflated air bag is jacked into the pipeline, and an inflated air bag is formed, wherein the outer surface of the inflated air bag is the inner surface of the uninflated air bag; and after the inflated air bag reaches the target position, the open end is closed. The air bag is inflated and jacked into the pipeline at the same time through air pressure, and labor is saved.

Description

technical field [0001] The invention relates to the technical field of construction engineering, in particular to a method and a device for penetrating an air bag into a pipeline. Background technique [0002] In the process of using the airbag to construct the pipeline, the airbag needs to be penetrated into the pipeline first. For example, before pouring concrete on the prefabricated beam slab, the airbag is inserted into the prestressed metal bellows, the airbag is inflated and the circumferential outer surface of the airbag is in close contact with the inner wall of the bellows, so that the air pressure inside the airbag is greater than that of the concrete and its vibration. The impact force brought by pounding is enough. When the concrete pouring is completed and reaches the tensile strength, the airbag is deflated and the airbag is drawn out. As another example, when repairing a pipeline, it is necessary to use an airbag to inflate the repair material to the positio...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method and device for inserting an airbag into a pipeline, so as to alleviate the technical problems in the prior art that it is difficult, time-consuming and laborious to insert an uninflated airbag into a large-span pipeline

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