A polytetrafluoroethylene pipe coupling with internal leveling function

Abstract

The invention provides a coupler having an internal leveling function for polytetrafluoroethylene pipes. The coupler comprises a hand-held pipe, a first fastening device and a grinding device; a motoris installed at one end of the hand-held pipe, the grinding device is installed on the motor shaft, the first fastening device is fixedly installed on the hand-held pipe close to the grinding device,a gas passing seat is installed in the hand-held pipe, and the gas passing seat is used to convey compressed gas to the first fastening device; the first fastening device makes a plurality of first positioning plates closely adhered to the inner wall of a pipeline through the action of air pressure; and the grinding device protrudes from the periphery through a plurality of grinding plates underthe action of rotational inertia, and the plurality of grinding plates are movably connected with a grinding body through a movable arm. The coupler can effectively cleans accretions in pipelines during fused connection of polytetrafluoroethylene pipes, can adjust the friction coefficient, can be used for pipes having different lengths to be connected, and is convenient and fast.

Description

technical field [0001] The invention relates to the technical field of polytetrafluoroethylene connection, in particular to a polytetrafluoroethylene pipe coupling with an inner leveling function. Background technique [0002] The connection between the existing PTFE pipes usually uses a coupler to connect the two pipes, but the coupler makes the performance of the external parts differ greatly from that of PTFE, especially in the connection of thin-walled pipes. In this case, the coupling with stress is not suitable for use. At this time, the two pipes are usually connected by melting, but the melting method will produce nodules. After cooling, the nodules will stay on the inner and outer surfaces of the connecting ports. The nodules are easy to handle, but the nodules inside the pipeline are often difficult to handle. The current method is to rotate the leveler to make it move one or more back and forth inside the pipeline to complete the leveling effect inside the pipelin...

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to provide a polytetrafluoroethylene pipe coupler with an inner leveling function to overcome the above problems or at least partially solve the above problems, so as to solve the problem of the connection position of the polytetrafluoroethylene pipes when they are melted and connected. The problem that the tumor cannot be effectively cleaned leads to the unevenness of the inner wall of the pipeline

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