Pipe jointing tool

摘要

PURPOSE: A pressing device for joining pipes is provided to press a joining portion of a pipe with a uniform force by being uniformly touched to an external side of the joining portion of the pipe with 8 inserts. CONSTITUTION: A pressing device for joining pipes comprises a joint, first to eighth inserts(21~28), first to fourth plates(31,32,33,34), a tool body, and a pair of clamping pieces(50). The joint comprises first to fourth joints(11,12,13,14). Pipe pressing surfaces of the first to eighth inserts press a joining portion of a pipe. The first to eighth inserts are respectively adhered to internal sides of the first to fourth joints. Each outer end of the first to fourth plates are fixed to the first to fourth joints and fixing pins(29) of the first to eighth inserts are inserted into slots(35) of the plates. A pair of rollers(43) of the tool body is joined to a front end of a piston unit(41) of a hydraulic cylinder. A pair of fasteners comprises a roller contact portion(51) and a pressing portions(53).