Expansion device for telescopic pipe and method for expanding telescopic pipe by using expansion device

Abstract

The invention discloses an expansion device for a telescopic pipe and a method for expanding the telescopic pipe by using the expansion device. The expansion device comprises a mounting frame, a firstdriving device, a deformable expansion component and an expansion pipe, wherein the first driving device is mounted on the mounting frame in a reciprocating and movable manner relative to the mounting frame; the deformable expansion component is sleeved with the expanded telescopic pipe; and the expansion pipe is mounted on the first driving device, so that the expansion pipe is inserted into theexpansion component in the axial direction under the driving of the first driving device, and the telescopic pipe is expanded in the radial direction through the expansion component. When the telescopic pipe is expanded, the expansion pipe applying expansion force does not make direct contact with the telescopic pipe, but the telescopic pipe is expanded through the expansion component, so that the expansion pipe can be smoothly inserted into the expansion component, and the thickness of the expanded telescopic pipe is uniform.

Description

technical field [0001] An embodiment of the present disclosure relates to an expansion device for expanding a telescopic tube, and in particular to an expansion device for automatically expanding a telescopic tube and a method for expanding the telescopic tube by using the expansion device. Background technique [0002] For example, stretchable tubes such as heat shrinkable tubes have high temperature shrinkage, soft flame retardant, insulation and corrosion resistance functions, and can be widely used in insulation protection of various cable joints, wire harnesses, solder joints, inductors, metal tubes, rods, etc. Anti-rust, anti-corrosion, etc. The breakdown voltage level reaches 600V, even above 1000V. For example, such a telescopic tube is usually sleeved on the outside of the joint of the high-voltage cable. [0003] In order to install the telescopic tube on the joint of the cable, it is necessary to apply a load inside the telescopic tube to make it pre-expand, and...

AI Technical Summary

Problems solved by technology

[0004] It is tedious to pre-expand the telescoping tubes before installing them on the component to be protected (e.g. cable glands)

Sometimes it is time-consuming and labor-intensive to pre-expand the telescopic tube by manual operation, which reduces the operating efficiency

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