Manual reinforcing device and method for metal plastic composite pipe

Abstract

The invention discloses a manual reinforcing device and method for a metal plastic composite pipe. The manual reinforcing device comprises an expanding machine body and a sizing ring which is used for pressing a metal pipe and a plastic pipe at a port of the metal plastic composite pipe, and the sizing ring is a stretchable annular part made of metal materials; the expanding machine body comprises a taper sleeve and a plurality of movable module units arranged in an annular array, and the taper sleeve is located in an inner ring of a cylindrical structure formed by the module units arranged in the annular array; and the taper sleeve can be moved along the center line of the cylindrical structure, and meanwhile used for pushing the multiple module units to move away from each other in a plane perpendicular to the center line of the cylindrical structure to get in touch with and extrude the sizing ring located in the inner ring at the port of the metal-plastic composite pipe, until the outer diameter of the sizing ring is expanded to press the inner wall of the plastic pipe. According to the expanding machine, the port of the metal plastic composite pipe is efficiently and accurately reinforced, and the use is flexible; and through manual driving of the expanding machine body, a power unit is not needed, and the expanding machine is easy to use and operate, and saves labors.

Description

technical field [0001] The invention relates to the technical field of pipe processing, in particular to a manual reinforcement device and method for metal-plastic composite pipes. Background technique [0002] The metal-plastic composite pipe is a pipe made of a metal pipe on the outer layer and a plastic pipe on the inner layer. It has the advantages of metal pipes and non-metal pipes through a certain process. After the metal pipe and the plastic pipe are combined, in the process of placement, handling, use, etc., the port of the metal-plastic composite pipe is prone to the separation of the metal pipe and the plastic pipe. In order to prevent the expansion of the separation range of the metal pipe and the plastic pipe, the influence The performance of the metal-plastic composite pipe needs to prevent this phenomenon from happening. In other words, in any occasion such as placing, transporting, using and installing the pipe, it may be necessary to reinforce the pipe port...

AI Technical Summary

Problems solved by technology

In addition, in the production process of metal-plastic composite pipes, the expansion equipment can be used to strengthen the pipe ends. However, at the installation site, some pipes need to be cut off. Due to the relatively large volume and weight of the expansion equipment, it is extremely difficult to transport them to the installation site. Convenience, it needs electricity and hydraulic power to use at the same time, it is difficult to reinforce the cut-off pipe port

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