A polyethylene pipe welding equipment

Abstract

The invention discloses a polyethylene pipe welding equipment, which includes a positioning seat for axially limiting the inner connecting pipe and the inner pipe of the polyethylene pipe, and a connecting rod fixed to the center of the positioning seat, and the connecting rod drives the positioning seat along the The double-layer pipeline moves radially, the lower end of the positioning seat is provided with a jaw for clamping and positioning the inner connecting pipe, the edge of the positioning seat is provided with at least two movably connected arc-shaped plates, and the connecting rod is provided with There is an action sleeve that drives the arc-shaped plate to move toward the lower end of the inner connecting pipe. A fuse is installed at the bottom of the arc-shaped plate. After the arc-shaped plate moves down, the fuse acts on the inner connecting pipe and the inner pipe. The junction and heat the junction of the inner connecting pipe and the inner pipe. The invention aims to provide a polyethylene pipe welding equipment, which reduces the installation difficulty of the inner connecting pipe and ensures the fixing effect of the inner pipe and the inner connecting pipe.

Description

technical field [0001] The invention belongs to the field of double-layer pipe fittings, in particular to polyethylene pipe welding equipment. Background technique [0002] In the field of double-layer pipe fittings, polyethylene pipe fittings are set to be double-layered inside and outside. The inner pipe is used for medium transportation, and the isolation between the inner pipe and the outer pipe forms a closed cavity. On the one hand, it can be used for protection. On the one hand, the detection gas can be filled in the cavity during detection, and whether the oil pipeline leaks can be detected by monitoring the pressure change of the gas in the closed cavity. In order to reduce losses caused by downtime, double-layer pipe fittings often need to be drilled under pressure for construction work, and the outer pipe is opened with a punching tool after the outer flange is installed and fixed. However, the inner connecting pipe fixed to the inner pipe cannot be installed and...

AI Technical Summary

Problems solved by technology

However, the inner connecting pipe fixed with the inner pipe cannot be installed and fixed by the existing conventional methods because the outer flange has a relatively large restriction on the outer space of the inner flange, and the inner space of the inner connecting pipe is also limited. It brings great difficulty to the construction process, and it is difficult to guarantee the connection and fixing effect between the inner pipe and the inner connecting pipe

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