Wind-up attaching type gasket device for pipeline welding

Abstract

The invention discloses a wind-up attaching type gasket device for pipeline welding, and mainly aims to provide a pipeline welding auxiliary tool used during welding of pipelines with medium and smallcalibers and used for improving the welding quality. The wind-up attaching type gasket device for pipeline welding is characterized by comprising a sheet gasket which is made of copper alloy and areused for plugging a pipeline welding groove, a sliding pad, an elastic sheet, a gasket guide wheel, a long shaft, a guide wheel pin, a support barrel, two bearings, a wheel support, a small wheel, a pin shaft, a connecting barrel, a swing handle, a torque screw, a fixing frame and a T-shaped screw. According to the gasket device, the radial size is relatively small, the wind-up gasket is utilizedto be expanded to attach on the inner wall of a steel pipe so as to achieve the purpose of plugging the welding groove so that the gasket device can be applied into medium-and-small-caliber pipeline welding construction, and the gasket device is simple in structure and convenient to use.

Description

technical field [0001] The invention relates to a pipeline welding auxiliary tool used for welding small and medium-diameter pipelines for improving welding quality. Background technique [0002] The application of welding backing can greatly improve the welding quality. At present, pipe welding counterparts with gasket parts have been developed at home and abroad, and the gasket technology is applied to the welding process of large-diameter pipelines. However, due to the narrow radial space, small and medium-diameter pipes cannot be fitted into pipe welding counterparts with complex structures. In recent years, there have been some simple devices for sealing the welding groove of pipelines by combining small block liners. However, when multiple block liners are combined, there are many gaps and the sealing effect is poor. Therefore, in the welding process of small and medium-diameter pipes, there is no mature liner device application. Contents of the invention [0003]...

AI Technical Summary

Problems solved by technology

However, due to the narrow radial space, small and medium-sized pipes cannot be fitted into pipe welding counterparts with complex structures.

In recent years, there have been some simple devices for sealing pipe welding grooves with small block liners, but when multiple block liners are combined, there are many gaps and the sealing effect is poor

Therefore, in the welding process of small and medium-diameter pipes, there is no mature liner device application

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