Pipeline end plugging structure and assembling method of structure and pipeline

Abstract

The invention discloses a pipeline end plugging structure and an assembling method of the structure and a pipeline. The structure comprises a steel ring, an intermediate body and a gasket, wherein thesteel ring comprises a connecting part and a limiting part, the intermediate body is provided with a blind hole matched with the shape and the size of the outer wall of the pipeline, the intermediatebody and the limiting part can sleeve the outer wall of the pipeline, the connecting part sleeves the outer wall of the opening end of the blind hole in the intermediate body, and the connecting partis in interference fit with the outer wall of the intermediate body; the gasket is arranged in the steel ring and connected with the inner side end face of the limiting part, the gasket can sleeve the outer wall of the pipeline, and the outer side face of the gasket is in interference fit with the inner wall of the blind hole of the intermediate body. In the assembling process of the structure and the pipeline, two plastic deformation regions are formed on the pipeline, and the strength and the sealing performance required by plugging are provided by formation of the deformation regions. Compared with an existing cold processing mode for plugging a pipeline, plugging of the pipeline can be completed without adding any filler, and therefore the leakage of the pipeline is more effectively prevented.

Description

technical field [0001] The invention relates to the improvement of a pipeline sealing device in a refrigeration system, in particular to a pipeline terminal sealing structure and a method for assembling the structure and pipelines. Background technique [0002] The pipe sealing device is installed at the end of the pipe, which is a kind of mechanical fastener. Its function is to seal the pipe, and it is used to block the unnecessary opening in the pipe and play a sealing role. [0003] In recent years, due to the demand for environmental protection, the refrigerant in the refrigeration system has been replaced by alkanes, such as R290, R32, etc., which are flammable and explosive. After the factory uses this type of refrigerant, it often uses a stop valve to reverse the refrigerant. The production efficiency of the method is low, and the cost is high. [0004] At present, there is another cold processing method on the market. Patent No. CN201920382158.8 proposes a sealing d...

AI Technical Summary

Problems solved by technology

So as to solve the problem of pipeline leakage caused by artificially forgetting to use filler

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